From 89071f35599ac58cde99923a376d6b75c0d49e4b Mon Sep 17 00:00:00 2001
From: Kazu Hirata <kazu@google.com>
Date: Tue, 16 Apr 2024 00:09:41 -0700
Subject: [clang] Drop unaligned from calls to readNext (NFC) (#88842)

Now readNext defaults to unaligned accesses.  This patch drops
unaligned to improve readability.
---
 clang/lib/APINotes/APINotesReader.cpp          | 137 ++++++++++---------------
 clang/lib/Serialization/ASTReader.cpp          |  87 +++++++---------
 clang/lib/Serialization/GlobalModuleIndex.cpp  |  12 +--
 clang/lib/Serialization/MultiOnDiskHashTable.h |   4 +-
 4 files changed, 98 insertions(+), 142 deletions(-)

(limited to 'clang')

diff --git a/clang/lib/APINotes/APINotesReader.cpp b/clang/lib/APINotes/APINotesReader.cpp
index fbbe9c3..dfc3beb6 100644
--- a/clang/lib/APINotes/APINotesReader.cpp
+++ b/clang/lib/APINotes/APINotesReader.cpp
@@ -30,23 +30,20 @@ namespace {
 llvm::VersionTuple ReadVersionTuple(const uint8_t *&Data) {
   uint8_t NumVersions = (*Data++) & 0x03;
 
-  unsigned Major =
-      endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+  unsigned Major = endian::readNext<uint32_t, llvm::endianness::little>(Data);
   if (NumVersions == 0)
     return llvm::VersionTuple(Major);
 
-  unsigned Minor =
-      endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+  unsigned Minor = endian::readNext<uint32_t, llvm::endianness::little>(Data);
   if (NumVersions == 1)
     return llvm::VersionTuple(Major, Minor);
 
   unsigned Subminor =
-      endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+      endian::readNext<uint32_t, llvm::endianness::little>(Data);
   if (NumVersions == 2)
     return llvm::VersionTuple(Major, Minor, Subminor);
 
-  unsigned Build =
-      endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+  unsigned Build = endian::readNext<uint32_t, llvm::endianness::little>(Data);
   return llvm::VersionTuple(Major, Minor, Subminor, Build);
 }
 
@@ -71,16 +68,16 @@ public:
 
   static std::pair<unsigned, unsigned> ReadKeyDataLength(const uint8_t *&Data) {
     unsigned KeyLength =
-        endian::readNext<uint16_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint16_t, llvm::endianness::little>(Data);
     unsigned DataLength =
-        endian::readNext<uint16_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint16_t, llvm::endianness::little>(Data);
     return {KeyLength, DataLength};
   }
 
   static data_type ReadData(internal_key_type Key, const uint8_t *Data,
                             unsigned Length) {
     unsigned NumElements =
-        endian::readNext<uint16_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint16_t, llvm::endianness::little>(Data);
     data_type Result;
     Result.reserve(NumElements);
     for (unsigned i = 0; i != NumElements; ++i) {
@@ -105,14 +102,14 @@ void ReadCommonEntityInfo(const uint8_t *&Data, CommonEntityInfo &Info) {
     Info.setSwiftPrivate(static_cast<bool>((UnavailableBits >> 3) & 0x01));
 
   unsigned MsgLength =
-      endian::readNext<uint16_t, llvm::endianness::little, unaligned>(Data);
+      endian::readNext<uint16_t, llvm::endianness::little>(Data);
   Info.UnavailableMsg =
       std::string(reinterpret_cast<const char *>(Data),
                   reinterpret_cast<const char *>(Data) + MsgLength);
   Data += MsgLength;
 
   unsigned SwiftNameLength =
-      endian::readNext<uint16_t, llvm::endianness::little, unaligned>(Data);
+      endian::readNext<uint16_t, llvm::endianness::little>(Data);
   Info.SwiftName =
       std::string(reinterpret_cast<const char *>(Data),
                   reinterpret_cast<const char *>(Data) + SwiftNameLength);
@@ -124,7 +121,7 @@ void ReadCommonTypeInfo(const uint8_t *&Data, CommonTypeInfo &Info) {
   ReadCommonEntityInfo(Data, Info);
 
   unsigned SwiftBridgeLength =
-      endian::readNext<uint16_t, llvm::endianness::little, unaligned>(Data);
+      endian::readNext<uint16_t, llvm::endianness::little>(Data);
   if (SwiftBridgeLength > 0) {
     Info.setSwiftBridge(std::string(reinterpret_cast<const char *>(Data),
                                     SwiftBridgeLength - 1));
@@ -132,7 +129,7 @@ void ReadCommonTypeInfo(const uint8_t *&Data, CommonTypeInfo &Info) {
   }
 
   unsigned ErrorDomainLength =
-      endian::readNext<uint16_t, llvm::endianness::little, unaligned>(Data);
+      endian::readNext<uint16_t, llvm::endianness::little>(Data);
   if (ErrorDomainLength > 0) {
     Info.setNSErrorDomain(std::optional<std::string>(std::string(
         reinterpret_cast<const char *>(Data), ErrorDomainLength - 1)));
@@ -163,9 +160,9 @@ public:
 
   static std::pair<unsigned, unsigned> ReadKeyDataLength(const uint8_t *&Data) {
     unsigned KeyLength =
-        endian::readNext<uint16_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint16_t, llvm::endianness::little>(Data);
     unsigned DataLength =
-        endian::readNext<uint16_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint16_t, llvm::endianness::little>(Data);
     return {KeyLength, DataLength};
   }
 
@@ -175,8 +172,7 @@ public:
 
   static data_type ReadData(internal_key_type key, const uint8_t *Data,
                             unsigned Length) {
-    return endian::readNext<uint32_t, llvm::endianness::little, unaligned>(
-        Data);
+    return endian::readNext<uint32_t, llvm::endianness::little>(Data);
   }
 };
 
@@ -203,26 +199,24 @@ public:
 
   static std::pair<unsigned, unsigned> ReadKeyDataLength(const uint8_t *&Data) {
     unsigned KeyLength =
-        endian::readNext<uint16_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint16_t, llvm::endianness::little>(Data);
     unsigned DataLength =
-        endian::readNext<uint16_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint16_t, llvm::endianness::little>(Data);
     return {KeyLength, DataLength};
   }
 
   static internal_key_type ReadKey(const uint8_t *Data, unsigned Length) {
     auto ParentCtxID =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint32_t, llvm::endianness::little>(Data);
     auto ContextKind =
-        endian::readNext<uint8_t, llvm::endianness::little, unaligned>(Data);
-    auto NameID =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint8_t, llvm::endianness::little>(Data);
+    auto NameID = endian::readNext<uint32_t, llvm::endianness::little>(Data);
     return {ParentCtxID, ContextKind, NameID};
   }
 
   static data_type ReadData(internal_key_type Key, const uint8_t *Data,
                             unsigned Length) {
-    return endian::readNext<uint32_t, llvm::endianness::little, unaligned>(
-        Data);
+    return endian::readNext<uint32_t, llvm::endianness::little>(Data);
   }
 };
 
@@ -232,8 +226,7 @@ class ObjCContextInfoTableInfo
                                 ObjCContextInfo> {
 public:
   static internal_key_type ReadKey(const uint8_t *Data, unsigned Length) {
-    return endian::readNext<uint32_t, llvm::endianness::little, unaligned>(
-        Data);
+    return endian::readNext<uint32_t, llvm::endianness::little>(Data);
   }
 
   hash_value_type ComputeHash(internal_key_type Key) {
@@ -273,8 +266,7 @@ void ReadVariableInfo(const uint8_t *&Data, VariableInfo &Info) {
   }
   ++Data;
 
-  auto TypeLen =
-      endian::readNext<uint16_t, llvm::endianness::little, unaligned>(Data);
+  auto TypeLen = endian::readNext<uint16_t, llvm::endianness::little>(Data);
   Info.setType(std::string(Data, Data + TypeLen));
   Data += TypeLen;
 }
@@ -286,12 +278,9 @@ class ObjCPropertyTableInfo
                                 ObjCPropertyInfo> {
 public:
   static internal_key_type ReadKey(const uint8_t *Data, unsigned Length) {
-    auto ClassID =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
-    auto NameID =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
-    char IsInstance =
-        endian::readNext<uint8_t, llvm::endianness::little, unaligned>(Data);
+    auto ClassID = endian::readNext<uint32_t, llvm::endianness::little>(Data);
+    auto NameID = endian::readNext<uint32_t, llvm::endianness::little>(Data);
+    char IsInstance = endian::readNext<uint8_t, llvm::endianness::little>(Data);
     return {ClassID, NameID, IsInstance};
   }
 
@@ -314,8 +303,7 @@ public:
 void ReadParamInfo(const uint8_t *&Data, ParamInfo &Info) {
   ReadVariableInfo(Data, Info);
 
-  uint8_t Payload =
-      endian::readNext<uint8_t, llvm::endianness::little, unaligned>(Data);
+  uint8_t Payload = endian::readNext<uint8_t, llvm::endianness::little>(Data);
   if (auto RawConvention = Payload & 0x7) {
     auto Convention = static_cast<RetainCountConventionKind>(RawConvention - 1);
     Info.setRetainCountConvention(Convention);
@@ -331,8 +319,7 @@ void ReadParamInfo(const uint8_t *&Data, ParamInfo &Info) {
 void ReadFunctionInfo(const uint8_t *&Data, FunctionInfo &Info) {
   ReadCommonEntityInfo(Data, Info);
 
-  uint8_t Payload =
-      endian::readNext<uint8_t, llvm::endianness::little, unaligned>(Data);
+  uint8_t Payload = endian::readNext<uint8_t, llvm::endianness::little>(Data);
   if (auto RawConvention = Payload & 0x7) {
     auto Convention = static_cast<RetainCountConventionKind>(RawConvention - 1);
     Info.setRetainCountConvention(Convention);
@@ -343,12 +330,12 @@ void ReadFunctionInfo(const uint8_t *&Data, FunctionInfo &Info) {
   assert(Payload == 0 && "Bad API notes");
 
   Info.NumAdjustedNullable =
-      endian::readNext<uint8_t, llvm::endianness::little, unaligned>(Data);
+      endian::readNext<uint8_t, llvm::endianness::little>(Data);
   Info.NullabilityPayload =
-      endian::readNext<uint64_t, llvm::endianness::little, unaligned>(Data);
+      endian::readNext<uint64_t, llvm::endianness::little>(Data);
 
   unsigned NumParams =
-      endian::readNext<uint16_t, llvm::endianness::little, unaligned>(Data);
+      endian::readNext<uint16_t, llvm::endianness::little>(Data);
   while (NumParams > 0) {
     ParamInfo pi;
     ReadParamInfo(Data, pi);
@@ -357,7 +344,7 @@ void ReadFunctionInfo(const uint8_t *&Data, FunctionInfo &Info) {
   }
 
   unsigned ResultTypeLen =
-      endian::readNext<uint16_t, llvm::endianness::little, unaligned>(Data);
+      endian::readNext<uint16_t, llvm::endianness::little>(Data);
   Info.ResultType = std::string(Data, Data + ResultTypeLen);
   Data += ResultTypeLen;
 }
@@ -369,12 +356,10 @@ class ObjCMethodTableInfo
                                 ObjCMethodInfo> {
 public:
   static internal_key_type ReadKey(const uint8_t *Data, unsigned Length) {
-    auto ClassID =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+    auto ClassID = endian::readNext<uint32_t, llvm::endianness::little>(Data);
     auto SelectorID =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
-    auto IsInstance =
-        endian::readNext<uint8_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint32_t, llvm::endianness::little>(Data);
+    auto IsInstance = endian::readNext<uint8_t, llvm::endianness::little>(Data);
     return {ClassID, SelectorID, IsInstance};
   }
 
@@ -419,29 +404,26 @@ public:
 
   static std::pair<unsigned, unsigned> ReadKeyDataLength(const uint8_t *&Data) {
     unsigned KeyLength =
-        endian::readNext<uint16_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint16_t, llvm::endianness::little>(Data);
     unsigned DataLength =
-        endian::readNext<uint16_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint16_t, llvm::endianness::little>(Data);
     return {KeyLength, DataLength};
   }
 
   static internal_key_type ReadKey(const uint8_t *Data, unsigned Length) {
     internal_key_type Key;
-    Key.NumArgs =
-        endian::readNext<uint16_t, llvm::endianness::little, unaligned>(Data);
+    Key.NumArgs = endian::readNext<uint16_t, llvm::endianness::little>(Data);
     unsigned NumIdents = (Length - sizeof(uint16_t)) / sizeof(uint32_t);
     for (unsigned i = 0; i != NumIdents; ++i) {
       Key.Identifiers.push_back(
-          endian::readNext<uint32_t, llvm::endianness::little, unaligned>(
-              Data));
+          endian::readNext<uint32_t, llvm::endianness::little>(Data));
     }
     return Key;
   }
 
   static data_type ReadData(internal_key_type Key, const uint8_t *Data,
                             unsigned Length) {
-    return endian::readNext<uint32_t, llvm::endianness::little, unaligned>(
-        Data);
+    return endian::readNext<uint32_t, llvm::endianness::little>(Data);
   }
 };
 
@@ -451,12 +433,10 @@ class GlobalVariableTableInfo
                                 GlobalVariableInfo> {
 public:
   static internal_key_type ReadKey(const uint8_t *Data, unsigned Length) {
-    auto CtxID =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+    auto CtxID = endian::readNext<uint32_t, llvm::endianness::little>(Data);
     auto ContextKind =
-        endian::readNext<uint8_t, llvm::endianness::little, unaligned>(Data);
-    auto NameID =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint8_t, llvm::endianness::little>(Data);
+    auto NameID = endian::readNext<uint32_t, llvm::endianness::little>(Data);
     return {CtxID, ContextKind, NameID};
   }
 
@@ -478,12 +458,10 @@ class GlobalFunctionTableInfo
                                 GlobalFunctionInfo> {
 public:
   static internal_key_type ReadKey(const uint8_t *Data, unsigned Length) {
-    auto CtxID =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+    auto CtxID = endian::readNext<uint32_t, llvm::endianness::little>(Data);
     auto ContextKind =
-        endian::readNext<uint8_t, llvm::endianness::little, unaligned>(Data);
-    auto NameID =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint8_t, llvm::endianness::little>(Data);
+    auto NameID = endian::readNext<uint32_t, llvm::endianness::little>(Data);
     return {CtxID, ContextKind, NameID};
   }
 
@@ -505,8 +483,7 @@ class EnumConstantTableInfo
                                 EnumConstantInfo> {
 public:
   static internal_key_type ReadKey(const uint8_t *Data, unsigned Length) {
-    auto NameID =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+    auto NameID = endian::readNext<uint32_t, llvm::endianness::little>(Data);
     return NameID;
   }
 
@@ -527,13 +504,11 @@ class TagTableInfo
     : public VersionedTableInfo<TagTableInfo, ContextTableKey, TagInfo> {
 public:
   static internal_key_type ReadKey(const uint8_t *Data, unsigned Length) {
-    auto CtxID =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+    auto CtxID = endian::readNext<uint32_t, llvm::endianness::little>(Data);
     auto ContextKind =
-        endian::readNext<uint8_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint8_t, llvm::endianness::little>(Data);
     auto NameID =
-        endian::readNext<IdentifierID, llvm::endianness::little, unaligned>(
-            Data);
+        endian::readNext<IdentifierID, llvm::endianness::little>(Data);
     return {CtxID, ContextKind, NameID};
   }
 
@@ -553,21 +528,21 @@ public:
           static_cast<EnumExtensibilityKind>((Payload & 0x3) - 1);
 
     unsigned ImportAsLength =
-        endian::readNext<uint16_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint16_t, llvm::endianness::little>(Data);
     if (ImportAsLength > 0) {
       Info.SwiftImportAs =
           std::string(reinterpret_cast<const char *>(Data), ImportAsLength - 1);
       Data += ImportAsLength - 1;
     }
     unsigned RetainOpLength =
-        endian::readNext<uint16_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint16_t, llvm::endianness::little>(Data);
     if (RetainOpLength > 0) {
       Info.SwiftRetainOp =
           std::string(reinterpret_cast<const char *>(Data), RetainOpLength - 1);
       Data += RetainOpLength - 1;
     }
     unsigned ReleaseOpLength =
-        endian::readNext<uint16_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint16_t, llvm::endianness::little>(Data);
     if (ReleaseOpLength > 0) {
       Info.SwiftReleaseOp = std::string(reinterpret_cast<const char *>(Data),
                                         ReleaseOpLength - 1);
@@ -585,13 +560,11 @@ class TypedefTableInfo
                                 TypedefInfo> {
 public:
   static internal_key_type ReadKey(const uint8_t *Data, unsigned Length) {
-    auto CtxID =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+    auto CtxID = endian::readNext<uint32_t, llvm::endianness::little>(Data);
     auto ContextKind =
-        endian::readNext<uint8_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint8_t, llvm::endianness::little>(Data);
     auto nameID =
-        endian::readNext<IdentifierID, llvm::endianness::little, unaligned>(
-            Data);
+        endian::readNext<IdentifierID, llvm::endianness::little>(Data);
     return {CtxID, ContextKind, nameID};
   }
 
diff --git a/clang/lib/Serialization/ASTReader.cpp b/clang/lib/Serialization/ASTReader.cpp
index 8c4b460..feb60bc 100644
--- a/clang/lib/Serialization/ASTReader.cpp
+++ b/clang/lib/Serialization/ASTReader.cpp
@@ -915,10 +915,9 @@ ASTSelectorLookupTrait::ReadKey(const unsigned char* d, unsigned) {
   using namespace llvm::support;
 
   SelectorTable &SelTable = Reader.getContext().Selectors;
-  unsigned N =
-      endian::readNext<uint16_t, llvm::endianness::little, unaligned>(d);
+  unsigned N = endian::readNext<uint16_t, llvm::endianness::little>(d);
   const IdentifierInfo *FirstII = Reader.getLocalIdentifier(
-      F, endian::readNext<uint32_t, llvm::endianness::little, unaligned>(d));
+      F, endian::readNext<uint32_t, llvm::endianness::little>(d));
   if (N == 0)
     return SelTable.getNullarySelector(FirstII);
   else if (N == 1)
@@ -928,7 +927,7 @@ ASTSelectorLookupTrait::ReadKey(const unsigned char* d, unsigned) {
   Args.push_back(FirstII);
   for (unsigned I = 1; I != N; ++I)
     Args.push_back(Reader.getLocalIdentifier(
-        F, endian::readNext<uint32_t, llvm::endianness::little, unaligned>(d)));
+        F, endian::readNext<uint32_t, llvm::endianness::little>(d)));
 
   return SelTable.getSelector(N, Args.data());
 }
@@ -941,11 +940,11 @@ ASTSelectorLookupTrait::ReadData(Selector, const unsigned char* d,
   data_type Result;
 
   Result.ID = Reader.getGlobalSelectorID(
-      F, endian::readNext<uint32_t, llvm::endianness::little, unaligned>(d));
+      F, endian::readNext<uint32_t, llvm::endianness::little>(d));
   unsigned FullInstanceBits =
-      endian::readNext<uint16_t, llvm::endianness::little, unaligned>(d);
+      endian::readNext<uint16_t, llvm::endianness::little>(d);
   unsigned FullFactoryBits =
-      endian::readNext<uint16_t, llvm::endianness::little, unaligned>(d);
+      endian::readNext<uint16_t, llvm::endianness::little>(d);
   Result.InstanceBits = FullInstanceBits & 0x3;
   Result.InstanceHasMoreThanOneDecl = (FullInstanceBits >> 2) & 0x1;
   Result.FactoryBits = FullFactoryBits & 0x3;
@@ -956,16 +955,14 @@ ASTSelectorLookupTrait::ReadData(Selector, const unsigned char* d,
   // Load instance methods
   for (unsigned I = 0; I != NumInstanceMethods; ++I) {
     if (ObjCMethodDecl *Method = Reader.GetLocalDeclAs<ObjCMethodDecl>(
-            F,
-            endian::readNext<uint32_t, llvm::endianness::little, unaligned>(d)))
+            F, endian::readNext<uint32_t, llvm::endianness::little>(d)))
       Result.Instance.push_back(Method);
   }
 
   // Load factory methods
   for (unsigned I = 0; I != NumFactoryMethods; ++I) {
     if (ObjCMethodDecl *Method = Reader.GetLocalDeclAs<ObjCMethodDecl>(
-            F,
-            endian::readNext<uint32_t, llvm::endianness::little, unaligned>(d)))
+            F, endian::readNext<uint32_t, llvm::endianness::little>(d)))
       Result.Factory.push_back(Method);
   }
 
@@ -1009,8 +1006,7 @@ static bool readBit(unsigned &Bits) {
 IdentID ASTIdentifierLookupTrait::ReadIdentifierID(const unsigned char *d) {
   using namespace llvm::support;
 
-  unsigned RawID =
-      endian::readNext<uint32_t, llvm::endianness::little, unaligned>(d);
+  unsigned RawID = endian::readNext<uint32_t, llvm::endianness::little>(d);
   return Reader.getGlobalIdentifierID(F, RawID >> 1);
 }
 
@@ -1028,8 +1024,7 @@ IdentifierInfo *ASTIdentifierLookupTrait::ReadData(const internal_key_type& k,
                                                    unsigned DataLen) {
   using namespace llvm::support;
 
-  unsigned RawID =
-      endian::readNext<uint32_t, llvm::endianness::little, unaligned>(d);
+  unsigned RawID = endian::readNext<uint32_t, llvm::endianness::little>(d);
   bool IsInteresting = RawID & 0x01;
 
   // Wipe out the "is interesting" bit.
@@ -1053,9 +1048,8 @@ IdentifierInfo *ASTIdentifierLookupTrait::ReadData(const internal_key_type& k,
   }
 
   unsigned ObjCOrBuiltinID =
-      endian::readNext<uint16_t, llvm::endianness::little, unaligned>(d);
-  unsigned Bits =
-      endian::readNext<uint16_t, llvm::endianness::little, unaligned>(d);
+      endian::readNext<uint16_t, llvm::endianness::little>(d);
+  unsigned Bits = endian::readNext<uint16_t, llvm::endianness::little>(d);
   bool CPlusPlusOperatorKeyword = readBit(Bits);
   bool HasRevertedTokenIDToIdentifier = readBit(Bits);
   bool Poisoned = readBit(Bits);
@@ -1084,7 +1078,7 @@ IdentifierInfo *ASTIdentifierLookupTrait::ReadData(const internal_key_type& k,
   // definition.
   if (HadMacroDefinition) {
     uint32_t MacroDirectivesOffset =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(d);
+        endian::readNext<uint32_t, llvm::endianness::little>(d);
     DataLen -= 4;
 
     Reader.addPendingMacro(II, &F, MacroDirectivesOffset);
@@ -1098,8 +1092,7 @@ IdentifierInfo *ASTIdentifierLookupTrait::ReadData(const internal_key_type& k,
     SmallVector<uint32_t, 4> DeclIDs;
     for (; DataLen > 0; DataLen -= 4)
       DeclIDs.push_back(Reader.getGlobalDeclID(
-          F,
-          endian::readNext<uint32_t, llvm::endianness::little, unaligned>(d)));
+          F, endian::readNext<uint32_t, llvm::endianness::little>(d)));
     Reader.SetGloballyVisibleDecls(II, DeclIDs);
   }
 
@@ -1169,7 +1162,7 @@ ASTDeclContextNameLookupTrait::ReadFileRef(const unsigned char *&d) {
   using namespace llvm::support;
 
   uint32_t ModuleFileID =
-      endian::readNext<uint32_t, llvm::endianness::little, unaligned>(d);
+      endian::readNext<uint32_t, llvm::endianness::little>(d);
   return Reader.getLocalModuleFile(F, ModuleFileID);
 }
 
@@ -1189,18 +1182,15 @@ ASTDeclContextNameLookupTrait::ReadKey(const unsigned char *d, unsigned) {
   case DeclarationName::CXXLiteralOperatorName:
   case DeclarationName::CXXDeductionGuideName:
     Data = (uint64_t)Reader.getLocalIdentifier(
-        F, endian::readNext<uint32_t, llvm::endianness::little, unaligned>(d));
+        F, endian::readNext<uint32_t, llvm::endianness::little>(d));
     break;
   case DeclarationName::ObjCZeroArgSelector:
   case DeclarationName::ObjCOneArgSelector:
   case DeclarationName::ObjCMultiArgSelector:
-    Data =
-        (uint64_t)Reader
-            .getLocalSelector(
-                F,
-                endian::readNext<uint32_t, llvm::endianness::little, unaligned>(
-                    d))
-            .getAsOpaquePtr();
+    Data = (uint64_t)Reader
+               .getLocalSelector(
+                   F, endian::readNext<uint32_t, llvm::endianness::little>(d))
+               .getAsOpaquePtr();
     break;
   case DeclarationName::CXXOperatorName:
     Data = *d++; // OverloadedOperatorKind
@@ -1223,8 +1213,7 @@ void ASTDeclContextNameLookupTrait::ReadDataInto(internal_key_type,
   using namespace llvm::support;
 
   for (unsigned NumDecls = DataLen / 4; NumDecls; --NumDecls) {
-    uint32_t LocalID =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(d);
+    uint32_t LocalID = endian::readNext<uint32_t, llvm::endianness::little>(d);
     Val.insert(Reader.getGlobalDeclID(F, LocalID));
   }
 }
@@ -2033,10 +2022,9 @@ HeaderFileInfoTrait::ReadKey(const unsigned char *d, unsigned) {
   using namespace llvm::support;
 
   internal_key_type ikey;
-  ikey.Size =
-      off_t(endian::readNext<uint64_t, llvm::endianness::little, unaligned>(d));
-  ikey.ModTime = time_t(
-      endian::readNext<uint64_t, llvm::endianness::little, unaligned>(d));
+  ikey.Size = off_t(endian::readNext<uint64_t, llvm::endianness::little>(d));
+  ikey.ModTime =
+      time_t(endian::readNext<uint64_t, llvm::endianness::little>(d));
   ikey.Filename = (const char *)d;
   ikey.Imported = true;
   return ikey;
@@ -2064,9 +2052,9 @@ HeaderFileInfoTrait::ReadData(internal_key_ref key, const unsigned char *d,
   HFI.DirInfo = (Flags >> 1) & 0x07;
   HFI.IndexHeaderMapHeader = Flags & 0x01;
   HFI.ControllingMacroID = Reader.getGlobalIdentifierID(
-      M, endian::readNext<uint32_t, llvm::endianness::little, unaligned>(d));
+      M, endian::readNext<uint32_t, llvm::endianness::little>(d));
   if (unsigned FrameworkOffset =
-          endian::readNext<uint32_t, llvm::endianness::little, unaligned>(d)) {
+          endian::readNext<uint32_t, llvm::endianness::little>(d)) {
     // The framework offset is 1 greater than the actual offset,
     // since 0 is used as an indicator for "no framework name".
     StringRef FrameworkName(FrameworkStrings + FrameworkOffset - 1);
@@ -2077,7 +2065,7 @@ HeaderFileInfoTrait::ReadData(internal_key_ref key, const unsigned char *d,
          "Wrong data length in HeaderFileInfo deserialization");
   while (d != End) {
     uint32_t LocalSMID =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(d);
+        endian::readNext<uint32_t, llvm::endianness::little>(d);
     auto HeaderRole = static_cast<ModuleMap::ModuleHeaderRole>(LocalSMID & 7);
     LocalSMID >>= 3;
 
@@ -4085,9 +4073,8 @@ void ASTReader::ReadModuleOffsetMap(ModuleFile &F) const {
     // how it goes...
     using namespace llvm::support;
     ModuleKind Kind = static_cast<ModuleKind>(
-        endian::readNext<uint8_t, llvm::endianness::little, unaligned>(Data));
-    uint16_t Len =
-        endian::readNext<uint16_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint8_t, llvm::endianness::little>(Data));
+    uint16_t Len = endian::readNext<uint16_t, llvm::endianness::little>(Data);
     StringRef Name = StringRef((const char*)Data, Len);
     Data += Len;
     ModuleFile *OM = (Kind == MK_PrebuiltModule || Kind == MK_ExplicitModule ||
@@ -4103,21 +4090,21 @@ void ASTReader::ReadModuleOffsetMap(ModuleFile &F) const {
     }
 
     SourceLocation::UIntTy SLocOffset =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint32_t, llvm::endianness::little>(Data);
     uint32_t IdentifierIDOffset =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint32_t, llvm::endianness::little>(Data);
     uint32_t MacroIDOffset =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint32_t, llvm::endianness::little>(Data);
     uint32_t PreprocessedEntityIDOffset =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint32_t, llvm::endianness::little>(Data);
     uint32_t SubmoduleIDOffset =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint32_t, llvm::endianness::little>(Data);
     uint32_t SelectorIDOffset =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint32_t, llvm::endianness::little>(Data);
     uint32_t DeclIDOffset =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint32_t, llvm::endianness::little>(Data);
     uint32_t TypeIndexOffset =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Data);
+        endian::readNext<uint32_t, llvm::endianness::little>(Data);
 
     auto mapOffset = [&](uint32_t Offset, uint32_t BaseOffset,
                          RemapBuilder &Remap) {
diff --git a/clang/lib/Serialization/GlobalModuleIndex.cpp b/clang/lib/Serialization/GlobalModuleIndex.cpp
index dd4fc3e..8ff10f6 100644
--- a/clang/lib/Serialization/GlobalModuleIndex.cpp
+++ b/clang/lib/Serialization/GlobalModuleIndex.cpp
@@ -89,10 +89,8 @@ public:
   static std::pair<unsigned, unsigned>
   ReadKeyDataLength(const unsigned char*& d) {
     using namespace llvm::support;
-    unsigned KeyLen =
-        endian::readNext<uint16_t, llvm::endianness::little, unaligned>(d);
-    unsigned DataLen =
-        endian::readNext<uint16_t, llvm::endianness::little, unaligned>(d);
+    unsigned KeyLen = endian::readNext<uint16_t, llvm::endianness::little>(d);
+    unsigned DataLen = endian::readNext<uint16_t, llvm::endianness::little>(d);
     return std::make_pair(KeyLen, DataLen);
   }
 
@@ -113,8 +111,7 @@ public:
 
     data_type Result;
     while (DataLen > 0) {
-      unsigned ID =
-          endian::readNext<uint32_t, llvm::endianness::little, unaligned>(d);
+      unsigned ID = endian::readNext<uint32_t, llvm::endianness::little>(d);
       Result.push_back(ID);
       DataLen -= 4;
     }
@@ -514,8 +511,7 @@ namespace {
       // The first bit indicates whether this identifier is interesting.
       // That's all we care about.
       using namespace llvm::support;
-      unsigned RawID =
-          endian::readNext<uint32_t, llvm::endianness::little, unaligned>(d);
+      unsigned RawID = endian::readNext<uint32_t, llvm::endianness::little>(d);
       bool IsInteresting = RawID & 0x01;
       return std::make_pair(k, IsInteresting);
     }
diff --git a/clang/lib/Serialization/MultiOnDiskHashTable.h b/clang/lib/Serialization/MultiOnDiskHashTable.h
index 2402a62..a0d75ec 100644
--- a/clang/lib/Serialization/MultiOnDiskHashTable.h
+++ b/clang/lib/Serialization/MultiOnDiskHashTable.h
@@ -200,11 +200,11 @@ public:
     storage_type Ptr = Data;
 
     uint32_t BucketOffset =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Ptr);
+        endian::readNext<uint32_t, llvm::endianness::little>(Ptr);
 
     // Read the list of overridden files.
     uint32_t NumFiles =
-        endian::readNext<uint32_t, llvm::endianness::little, unaligned>(Ptr);
+        endian::readNext<uint32_t, llvm::endianness::little>(Ptr);
     // FIXME: Add a reserve() to TinyPtrVector so that we don't need to make
     // an additional copy.
     llvm::SmallVector<file_type, 16> OverriddenFiles;
-- 
cgit v1.1


From d26dd58ca5b59032eb371b8f51d9134acdd8d3ad Mon Sep 17 00:00:00 2001
From: Chuanqi Xu <yedeng.yd@linux.alibaba.com>
Date: Tue, 16 Apr 2024 14:37:38 +0800
Subject: [StmtProfile] Don't profile the body of lambda expressions

Close https://github.com/llvm/llvm-project/issues/87609

We tried to profile the body of the lambda expressions in
https://reviews.llvm.org/D153957. But as the original comments show,
it is indeed dangerous. After we tried to skip calculating the ODR
hash values recently, we have fall into this trap twice.

So in this patch, I choose to not profile the body of the lambda
expression. The signature of the lambda is still profiled.
---
 clang/include/clang/AST/DeclBase.h                 | 10 -----
 clang/include/clang/Serialization/ASTReader.h      |  6 +++
 clang/lib/AST/Decl.cpp                             |  2 +-
 clang/lib/AST/DeclBase.cpp                         |  5 ---
 clang/lib/AST/StmtProfile.cpp                      | 22 ++++++++++-
 clang/lib/Serialization/ASTReader.cpp              |  2 +-
 clang/lib/Serialization/ASTReaderDecl.cpp          |  8 ++--
 clang/lib/Serialization/ASTWriter.cpp              |  2 +-
 clang/lib/Serialization/ASTWriterDecl.cpp          |  8 ++--
 .../Modules/hashing-decls-in-exprs-from-gmf-2.cppm | 44 ++++++++++++++++++++++
 10 files changed, 81 insertions(+), 28 deletions(-)
 create mode 100644 clang/test/Modules/hashing-decls-in-exprs-from-gmf-2.cppm

(limited to 'clang')

diff --git a/clang/include/clang/AST/DeclBase.h b/clang/include/clang/AST/DeclBase.h
index 2194d26..1079993 100644
--- a/clang/include/clang/AST/DeclBase.h
+++ b/clang/include/clang/AST/DeclBase.h
@@ -672,16 +672,6 @@ public:
   /// Whether this declaration comes from explicit global module.
   bool isFromExplicitGlobalModule() const;
 
-  /// Check if we should skip checking ODRHash for declaration \param D.
-  ///
-  /// The existing ODRHash mechanism seems to be not stable enough and
-  /// the false positive ODR violation reports are annoying and we rarely see
-  /// true ODR violation reports. Also we learned that MSVC disabled ODR checks
-  /// for declarations in GMF. So we try to disable ODR checks in the GMF to
-  /// get better user experiences before we make the ODR violation checks stable
-  /// enough.
-  bool shouldSkipCheckingODR() const;
-
   /// Return true if this declaration has an attribute which acts as
   /// definition of the entity, such as 'alias' or 'ifunc'.
   bool hasDefiningAttr() const;
diff --git a/clang/include/clang/Serialization/ASTReader.h b/clang/include/clang/Serialization/ASTReader.h
index e3fde88..43ee06c5 100644
--- a/clang/include/clang/Serialization/ASTReader.h
+++ b/clang/include/clang/Serialization/ASTReader.h
@@ -2457,6 +2457,12 @@ private:
   uint32_t Value;
   uint32_t CurrentBitsIndex = ~0;
 };
+
+inline bool shouldSkipCheckingODR(const Decl *D) {
+  return D->getASTContext().getLangOpts().SkipODRCheckInGMF &&
+         D->isFromExplicitGlobalModule();
+}
+
 } // namespace clang
 
 #endif // LLVM_CLANG_SERIALIZATION_ASTREADER_H
diff --git a/clang/lib/AST/Decl.cpp b/clang/lib/AST/Decl.cpp
index 2b2d5a2..33b6f86 100644
--- a/clang/lib/AST/Decl.cpp
+++ b/clang/lib/AST/Decl.cpp
@@ -4534,7 +4534,7 @@ unsigned FunctionDecl::getODRHash() {
   }
 
   class ODRHash Hash;
-  Hash.AddFunctionDecl(this, /*SkipBody=*/shouldSkipCheckingODR());
+  Hash.AddFunctionDecl(this);
   setHasODRHash(true);
   ODRHash = Hash.CalculateHash();
   return ODRHash;
diff --git a/clang/lib/AST/DeclBase.cpp b/clang/lib/AST/DeclBase.cpp
index 66a727d..4349263 100644
--- a/clang/lib/AST/DeclBase.cpp
+++ b/clang/lib/AST/DeclBase.cpp
@@ -1106,11 +1106,6 @@ bool Decl::isFromExplicitGlobalModule() const {
   return getOwningModule() && getOwningModule()->isExplicitGlobalModule();
 }
 
-bool Decl::shouldSkipCheckingODR() const {
-  return getASTContext().getLangOpts().SkipODRCheckInGMF &&
-         isFromExplicitGlobalModule();
-}
-
 static Decl::Kind getKind(const Decl *D) { return D->getKind(); }
 static Decl::Kind getKind(const DeclContext *DC) { return DC->getDeclKind(); }
 
diff --git a/clang/lib/AST/StmtProfile.cpp b/clang/lib/AST/StmtProfile.cpp
index d2aac1e..789e463 100644
--- a/clang/lib/AST/StmtProfile.cpp
+++ b/clang/lib/AST/StmtProfile.cpp
@@ -2071,13 +2071,31 @@ StmtProfiler::VisitLambdaExpr(const LambdaExpr *S) {
   }
 
   CXXRecordDecl *Lambda = S->getLambdaClass();
-  ID.AddInteger(Lambda->getODRHash());
-
   for (const auto &Capture : Lambda->captures()) {
     ID.AddInteger(Capture.getCaptureKind());
     if (Capture.capturesVariable())
       VisitDecl(Capture.getCapturedVar());
   }
+
+  // Profiling the body of the lambda may be dangerous during deserialization.
+  // So we'd like only to profile the signature here.
+  ODRHash Hasher;
+  // FIXME: We can't get the operator call easily by
+  // `CXXRecordDecl::getLambdaCallOperator()` if we're in deserialization.
+  // So we have to do something raw here.
+  for (auto *SubDecl : Lambda->decls()) {
+    FunctionDecl *Call = nullptr;
+    if (auto *FTD = dyn_cast<FunctionTemplateDecl>(SubDecl))
+      Call = FTD->getTemplatedDecl();
+    else if (auto *FD = dyn_cast<FunctionDecl>(SubDecl))
+      Call = FD;
+
+    if (!Call)
+      continue;
+
+    Hasher.AddFunctionDecl(Call, /*SkipBody=*/true);
+  }
+  ID.AddInteger(Hasher.CalculateHash());
 }
 
 void
diff --git a/clang/lib/Serialization/ASTReader.cpp b/clang/lib/Serialization/ASTReader.cpp
index feb60bc..f47d540 100644
--- a/clang/lib/Serialization/ASTReader.cpp
+++ b/clang/lib/Serialization/ASTReader.cpp
@@ -9785,7 +9785,7 @@ void ASTReader::finishPendingActions() {
             !NonConstDefn->isLateTemplateParsed() &&
             // We only perform ODR checks for decls not in the explicit
             // global module fragment.
-            !FD->shouldSkipCheckingODR() &&
+            !shouldSkipCheckingODR(FD) &&
             FD->getODRHash() != NonConstDefn->getODRHash()) {
           if (!isa<CXXMethodDecl>(FD)) {
             PendingFunctionOdrMergeFailures[FD].push_back(NonConstDefn);
diff --git a/clang/lib/Serialization/ASTReaderDecl.cpp b/clang/lib/Serialization/ASTReaderDecl.cpp
index e4b6a75..74d40f7 100644
--- a/clang/lib/Serialization/ASTReaderDecl.cpp
+++ b/clang/lib/Serialization/ASTReaderDecl.cpp
@@ -826,7 +826,7 @@ void ASTDeclReader::VisitEnumDecl(EnumDecl *ED) {
       Reader.mergeDefinitionVisibility(OldDef, ED);
       // We don't want to check the ODR hash value for declarations from global
       // module fragment.
-      if (!ED->shouldSkipCheckingODR() &&
+      if (!shouldSkipCheckingODR(ED) &&
           OldDef->getODRHash() != ED->getODRHash())
         Reader.PendingEnumOdrMergeFailures[OldDef].push_back(ED);
     } else {
@@ -868,7 +868,7 @@ void ASTDeclReader::VisitRecordDecl(RecordDecl *RD) {
   VisitRecordDeclImpl(RD);
   // We should only reach here if we're in C/Objective-C. There is no
   // global module fragment.
-  assert(!RD->shouldSkipCheckingODR());
+  assert(!shouldSkipCheckingODR(RD));
   RD->setODRHash(Record.readInt());
 
   // Maintain the invariant of a redeclaration chain containing only
@@ -2155,7 +2155,7 @@ void ASTDeclReader::MergeDefinitionData(
   }
 
   // We don't want to check ODR for decls in the global module fragment.
-  if (MergeDD.Definition->shouldSkipCheckingODR())
+  if (shouldSkipCheckingODR(MergeDD.Definition))
     return;
 
   if (D->getODRHash() != MergeDD.ODRHash) {
@@ -3530,7 +3530,7 @@ ASTDeclReader::FindExistingResult ASTDeclReader::findExisting(NamedDecl *D) {
   // same template specialization into the same CXXRecordDecl.
   auto MergedDCIt = Reader.MergedDeclContexts.find(D->getLexicalDeclContext());
   if (MergedDCIt != Reader.MergedDeclContexts.end() &&
-      !D->shouldSkipCheckingODR() && MergedDCIt->second == D->getDeclContext())
+      !shouldSkipCheckingODR(D) && MergedDCIt->second == D->getDeclContext())
     Reader.PendingOdrMergeChecks.push_back(D);
 
   return FindExistingResult(Reader, D, /*Existing=*/nullptr,
diff --git a/clang/lib/Serialization/ASTWriter.cpp b/clang/lib/Serialization/ASTWriter.cpp
index 85b7fd5..ce6fa1f 100644
--- a/clang/lib/Serialization/ASTWriter.cpp
+++ b/clang/lib/Serialization/ASTWriter.cpp
@@ -6188,7 +6188,7 @@ void ASTRecordWriter::AddCXXDefinitionData(const CXXRecordDecl *D) {
 
   BitsPacker DefinitionBits;
 
-  bool ShouldSkipCheckingODR = D->shouldSkipCheckingODR();
+  bool ShouldSkipCheckingODR = shouldSkipCheckingODR(D);
   DefinitionBits.addBit(ShouldSkipCheckingODR);
 
 #define FIELD(Name, Width, Merge)                                              \
diff --git a/clang/lib/Serialization/ASTWriterDecl.cpp b/clang/lib/Serialization/ASTWriterDecl.cpp
index 276b625..d0d49bc 100644
--- a/clang/lib/Serialization/ASTWriterDecl.cpp
+++ b/clang/lib/Serialization/ASTWriterDecl.cpp
@@ -526,7 +526,7 @@ void ASTDeclWriter::VisitEnumDecl(EnumDecl *D) {
   BitsPacker EnumDeclBits;
   EnumDeclBits.addBits(D->getNumPositiveBits(), /*BitWidth=*/8);
   EnumDeclBits.addBits(D->getNumNegativeBits(), /*BitWidth=*/8);
-  bool ShouldSkipCheckingODR = D->shouldSkipCheckingODR();
+  bool ShouldSkipCheckingODR = shouldSkipCheckingODR(D);
   EnumDeclBits.addBit(ShouldSkipCheckingODR);
   EnumDeclBits.addBit(D->isScoped());
   EnumDeclBits.addBit(D->isScopedUsingClassTag());
@@ -552,7 +552,7 @@ void ASTDeclWriter::VisitEnumDecl(EnumDecl *D) {
       !D->isTopLevelDeclInObjCContainer() &&
       !CXXRecordDecl::classofKind(D->getKind()) &&
       !D->getIntegerTypeSourceInfo() && !D->getMemberSpecializationInfo() &&
-      !needsAnonymousDeclarationNumber(D) && !D->shouldSkipCheckingODR() &&
+      !needsAnonymousDeclarationNumber(D) && !shouldSkipCheckingODR(D) &&
       D->getDeclName().getNameKind() == DeclarationName::Identifier)
     AbbrevToUse = Writer.getDeclEnumAbbrev();
 
@@ -718,7 +718,7 @@ void ASTDeclWriter::VisitFunctionDecl(FunctionDecl *D) {
   // FIXME: stable encoding
   FunctionDeclBits.addBits(llvm::to_underlying(D->getLinkageInternal()), 3);
   FunctionDeclBits.addBits((uint32_t)D->getStorageClass(), /*BitWidth=*/3);
-  bool ShouldSkipCheckingODR = D->shouldSkipCheckingODR();
+  bool ShouldSkipCheckingODR = shouldSkipCheckingODR(D);
   FunctionDeclBits.addBit(ShouldSkipCheckingODR);
   FunctionDeclBits.addBit(D->isInlineSpecified());
   FunctionDeclBits.addBit(D->isInlined());
@@ -1559,7 +1559,7 @@ void ASTDeclWriter::VisitCXXMethodDecl(CXXMethodDecl *D) {
       D->getFirstDecl() == D->getMostRecentDecl() && !D->isInvalidDecl() &&
       !D->hasAttrs() && !D->isTopLevelDeclInObjCContainer() &&
       D->getDeclName().getNameKind() == DeclarationName::Identifier &&
-      !D->shouldSkipCheckingODR() && !D->hasExtInfo() &&
+      !shouldSkipCheckingODR(D) && !D->hasExtInfo() &&
       !D->isExplicitlyDefaulted()) {
     if (D->getTemplatedKind() == FunctionDecl::TK_NonTemplate ||
         D->getTemplatedKind() == FunctionDecl::TK_FunctionTemplate ||
diff --git a/clang/test/Modules/hashing-decls-in-exprs-from-gmf-2.cppm b/clang/test/Modules/hashing-decls-in-exprs-from-gmf-2.cppm
new file mode 100644
index 0000000..6614310
--- /dev/null
+++ b/clang/test/Modules/hashing-decls-in-exprs-from-gmf-2.cppm
@@ -0,0 +1,44 @@
+// RUN: rm -rf %t
+// RUN: mkdir -p %t
+// RUN: split-file %s %t
+//
+// RUN: %clang_cc1 -std=c++20 -fskip-odr-check-in-gmf %t/A.cppm -emit-module-interface -o %t/A.pcm
+// RUN: %clang_cc1 -std=c++20 -fskip-odr-check-in-gmf %t/test.cpp -fprebuilt-module-path=%t -fsyntax-only -verify
+
+//--- header.h
+#pragma once
+template <class _Tp>
+class Optional {};
+
+template <class _Tp>
+concept C = requires(const _Tp& __t) {
+    []<class _Up>(const Optional<_Up>&) {}(__t);
+};
+
+//--- func.h
+#include "header.h"
+template <C T>
+void func() {}
+
+//--- test_func.h
+#include "func.h"
+
+inline void test_func() {
+    func<Optional<int>>();
+}
+
+//--- A.cppm
+module;
+#include "header.h"
+#include "test_func.h"
+export module A;
+export using ::test_func;
+
+//--- test.cpp
+// expected-no-diagnostics
+import A;
+#include "test_func.h"
+
+void test() {
+    test_func();
+}
-- 
cgit v1.1


From d6d84b5d1448e4f2e24b467a0abcf42fe9d543e9 Mon Sep 17 00:00:00 2001
From: NagyDonat <donat.nagy@ericsson.com>
Date: Tue, 16 Apr 2024 10:41:26 +0200
Subject: [analyzer] Handle builtin functions in MallocChecker (#88416)

This commit ensures that the `CallDescription`s in `MallocChecker` are
matched with the mode `CDM::CLibrary`, so:
- they don't match methods or functions within user-defined namespaces;
- they also match builtin variants of these functions (if any), so the
checker can model `__builtin_alloca()` like `alloca()`.

This change fixes https://github.com/llvm/llvm-project/issues/81597. New
tests were added to verify that `std::malloc` and `std::free` (from
`<cstdlib>`) are modeled, but a method that's named e.g. `free` isn't
confused with the memory release function.

The responsibility for modeling `__builtin_alloca` and
`__builtin_alloca_with_align` was moved from `BuiltinFunctionChecker` to
`MallocChecker`, to avoid buggy interactions between the checkers and
ensure that the builtin and non-builtin variants are handled by exactly
the same logic.

This change might be a step backwards for the users who don't have
`unix.Malloc` enabled; but I suspect that `__builtin_alloca()` is so
rare that it would be a waste of time to implement backwards
compatibility for them.

There were several test files that relied on `__builtin_alloca()` calls
to get an `AllocaRegion`, these were modified to enable `unix.Malloc`.
One of these files (cxx-uninitialized-object-ptr-ref.cpp) had some tests
that relied on the fact that `malloc()` was treated as a "black box" in
them, these were updated to use `calloc()` (to get initialized memory)
and `free()` (to avoid memory leak reports).

While I was developing this change, I found a very suspicious assert in
`MallocChecker`. As it isn't blocking the goals of this commit, I just
marked it with a FIXME, but I'll try to investigate and fix it in a
follow-up change.
---
 .../Checkers/BuiltinFunctionChecker.cpp            | 25 ++----
 .../lib/StaticAnalyzer/Checkers/MallocChecker.cpp  | 89 ++++++++++++----------
 .../Analysis/Inputs/system-header-simulator-cxx.h  |  6 +-
 .../Analysis/cxx-uninitialized-object-ptr-ref.cpp  | 24 ++++--
 clang/test/Analysis/exercise-ps.c                  |  2 +-
 clang/test/Analysis/explain-svals.cpp              |  2 +-
 clang/test/Analysis/malloc-std-namespace.cpp       | 24 ++++++
 clang/test/Analysis/malloc.c                       | 11 +++
 clang/test/Analysis/malloc.cpp                     | 11 +++
 clang/test/Analysis/stack-addr-ps.c                |  2 +-
 clang/test/Analysis/stackaddrleak.c                |  4 +-
 11 files changed, 125 insertions(+), 75 deletions(-)
 create mode 100644 clang/test/Analysis/malloc-std-namespace.cpp

(limited to 'clang')

diff --git a/clang/lib/StaticAnalyzer/Checkers/BuiltinFunctionChecker.cpp b/clang/lib/StaticAnalyzer/Checkers/BuiltinFunctionChecker.cpp
index 01e46fa..1a75d7b 100644
--- a/clang/lib/StaticAnalyzer/Checkers/BuiltinFunctionChecker.cpp
+++ b/clang/lib/StaticAnalyzer/Checkers/BuiltinFunctionChecker.cpp
@@ -6,7 +6,11 @@
 //
 //===----------------------------------------------------------------------===//
 //
-// This checker evaluates clang builtin functions.
+// This checker evaluates "standalone" clang builtin functions that are not
+// just special-cased variants of well-known non-builtin functions.
+// Builtin functions like __builtin_memcpy and __builtin_alloca should be
+// evaluated by the same checker that handles their non-builtin variant to
+// ensure that the two variants are handled consistently.
 //
 //===----------------------------------------------------------------------===//
 
@@ -80,25 +84,6 @@ bool BuiltinFunctionChecker::evalCall(const CallEvent &Call,
     return true;
   }
 
-  case Builtin::BI__builtin_alloca_with_align:
-  case Builtin::BI__builtin_alloca: {
-    SValBuilder &SVB = C.getSValBuilder();
-    const loc::MemRegionVal R =
-        SVB.getAllocaRegionVal(CE, C.getLocationContext(), C.blockCount());
-
-    // Set the extent of the region in bytes. This enables us to use the SVal
-    // of the argument directly. If we saved the extent in bits, it'd be more
-    // difficult to reason about values like symbol*8.
-    auto Size = Call.getArgSVal(0);
-    if (auto DefSize = Size.getAs<DefinedOrUnknownSVal>()) {
-      // This `getAs()` is mostly paranoia, because core.CallAndMessage reports
-      // undefined function arguments (unless it's disabled somehow).
-      state = setDynamicExtent(state, R.getRegion(), *DefSize, SVB);
-    }
-    C.addTransition(state->BindExpr(CE, LCtx, R));
-    return true;
-  }
-
   case Builtin::BI__builtin_dynamic_object_size:
   case Builtin::BI__builtin_object_size:
   case Builtin::BI__builtin_constant_p: {
diff --git a/clang/lib/StaticAnalyzer/Checkers/MallocChecker.cpp b/clang/lib/StaticAnalyzer/Checkers/MallocChecker.cpp
index 88fb42b..11651fd 100644
--- a/clang/lib/StaticAnalyzer/Checkers/MallocChecker.cpp
+++ b/clang/lib/StaticAnalyzer/Checkers/MallocChecker.cpp
@@ -401,10 +401,11 @@ private:
   };
 
   const CallDescriptionMap<CheckFn> FreeingMemFnMap{
-      {{{"free"}, 1}, &MallocChecker::checkFree},
-      {{{"if_freenameindex"}, 1}, &MallocChecker::checkIfFreeNameIndex},
-      {{{"kfree"}, 1}, &MallocChecker::checkFree},
-      {{{"g_free"}, 1}, &MallocChecker::checkFree},
+      {{CDM::CLibrary, {"free"}, 1}, &MallocChecker::checkFree},
+      {{CDM::CLibrary, {"if_freenameindex"}, 1},
+       &MallocChecker::checkIfFreeNameIndex},
+      {{CDM::CLibrary, {"kfree"}, 1}, &MallocChecker::checkFree},
+      {{CDM::CLibrary, {"g_free"}, 1}, &MallocChecker::checkFree},
   };
 
   bool isFreeingCall(const CallEvent &Call) const;
@@ -413,41 +414,46 @@ private:
   friend class NoOwnershipChangeVisitor;
 
   CallDescriptionMap<CheckFn> AllocatingMemFnMap{
-      {{{"alloca"}, 1}, &MallocChecker::checkAlloca},
-      {{{"_alloca"}, 1}, &MallocChecker::checkAlloca},
-      {{{"malloc"}, 1}, &MallocChecker::checkBasicAlloc},
-      {{{"malloc"}, 3}, &MallocChecker::checkKernelMalloc},
-      {{{"calloc"}, 2}, &MallocChecker::checkCalloc},
-      {{{"valloc"}, 1}, &MallocChecker::checkBasicAlloc},
+      {{CDM::CLibrary, {"alloca"}, 1}, &MallocChecker::checkAlloca},
+      {{CDM::CLibrary, {"_alloca"}, 1}, &MallocChecker::checkAlloca},
+      // The line for "alloca" also covers "__builtin_alloca", but the
+      // _with_align variant must be listed separately because it takes an
+      // extra argument:
+      {{CDM::CLibrary, {"__builtin_alloca_with_align"}, 2},
+       &MallocChecker::checkAlloca},
+      {{CDM::CLibrary, {"malloc"}, 1}, &MallocChecker::checkBasicAlloc},
+      {{CDM::CLibrary, {"malloc"}, 3}, &MallocChecker::checkKernelMalloc},
+      {{CDM::CLibrary, {"calloc"}, 2}, &MallocChecker::checkCalloc},
+      {{CDM::CLibrary, {"valloc"}, 1}, &MallocChecker::checkBasicAlloc},
       {{CDM::CLibrary, {"strndup"}, 2}, &MallocChecker::checkStrdup},
       {{CDM::CLibrary, {"strdup"}, 1}, &MallocChecker::checkStrdup},
-      {{{"_strdup"}, 1}, &MallocChecker::checkStrdup},
-      {{{"kmalloc"}, 2}, &MallocChecker::checkKernelMalloc},
-      {{{"if_nameindex"}, 1}, &MallocChecker::checkIfNameIndex},
+      {{CDM::CLibrary, {"_strdup"}, 1}, &MallocChecker::checkStrdup},
+      {{CDM::CLibrary, {"kmalloc"}, 2}, &MallocChecker::checkKernelMalloc},
+      {{CDM::CLibrary, {"if_nameindex"}, 1}, &MallocChecker::checkIfNameIndex},
       {{CDM::CLibrary, {"wcsdup"}, 1}, &MallocChecker::checkStrdup},
       {{CDM::CLibrary, {"_wcsdup"}, 1}, &MallocChecker::checkStrdup},
-      {{{"g_malloc"}, 1}, &MallocChecker::checkBasicAlloc},
-      {{{"g_malloc0"}, 1}, &MallocChecker::checkGMalloc0},
-      {{{"g_try_malloc"}, 1}, &MallocChecker::checkBasicAlloc},
-      {{{"g_try_malloc0"}, 1}, &MallocChecker::checkGMalloc0},
-      {{{"g_memdup"}, 2}, &MallocChecker::checkGMemdup},
-      {{{"g_malloc_n"}, 2}, &MallocChecker::checkGMallocN},
-      {{{"g_malloc0_n"}, 2}, &MallocChecker::checkGMallocN0},
-      {{{"g_try_malloc_n"}, 2}, &MallocChecker::checkGMallocN},
-      {{{"g_try_malloc0_n"}, 2}, &MallocChecker::checkGMallocN0},
+      {{CDM::CLibrary, {"g_malloc"}, 1}, &MallocChecker::checkBasicAlloc},
+      {{CDM::CLibrary, {"g_malloc0"}, 1}, &MallocChecker::checkGMalloc0},
+      {{CDM::CLibrary, {"g_try_malloc"}, 1}, &MallocChecker::checkBasicAlloc},
+      {{CDM::CLibrary, {"g_try_malloc0"}, 1}, &MallocChecker::checkGMalloc0},
+      {{CDM::CLibrary, {"g_memdup"}, 2}, &MallocChecker::checkGMemdup},
+      {{CDM::CLibrary, {"g_malloc_n"}, 2}, &MallocChecker::checkGMallocN},
+      {{CDM::CLibrary, {"g_malloc0_n"}, 2}, &MallocChecker::checkGMallocN0},
+      {{CDM::CLibrary, {"g_try_malloc_n"}, 2}, &MallocChecker::checkGMallocN},
+      {{CDM::CLibrary, {"g_try_malloc0_n"}, 2}, &MallocChecker::checkGMallocN0},
   };
 
   CallDescriptionMap<CheckFn> ReallocatingMemFnMap{
-      {{{"realloc"}, 2},
+      {{CDM::CLibrary, {"realloc"}, 2},
        std::bind(&MallocChecker::checkRealloc, _1, _2, _3, false)},
-      {{{"reallocf"}, 2},
+      {{CDM::CLibrary, {"reallocf"}, 2},
        std::bind(&MallocChecker::checkRealloc, _1, _2, _3, true)},
-      {{{"g_realloc"}, 2},
+      {{CDM::CLibrary, {"g_realloc"}, 2},
        std::bind(&MallocChecker::checkRealloc, _1, _2, _3, false)},
-      {{{"g_try_realloc"}, 2},
+      {{CDM::CLibrary, {"g_try_realloc"}, 2},
        std::bind(&MallocChecker::checkRealloc, _1, _2, _3, false)},
-      {{{"g_realloc_n"}, 3}, &MallocChecker::checkReallocN},
-      {{{"g_try_realloc_n"}, 3}, &MallocChecker::checkReallocN},
+      {{CDM::CLibrary, {"g_realloc_n"}, 3}, &MallocChecker::checkReallocN},
+      {{CDM::CLibrary, {"g_try_realloc_n"}, 3}, &MallocChecker::checkReallocN},
 
       // NOTE: the following CallDescription also matches the C++ standard
       // library function std::getline(); the callback will filter it out.
@@ -1259,9 +1265,6 @@ static bool isStandardRealloc(const CallEvent &Call) {
   assert(FD);
   ASTContext &AC = FD->getASTContext();
 
-  if (isa<CXXMethodDecl>(FD))
-    return false;
-
   return FD->getDeclaredReturnType().getDesugaredType(AC) == AC.VoidPtrTy &&
          FD->getParamDecl(0)->getType().getDesugaredType(AC) == AC.VoidPtrTy &&
          FD->getParamDecl(1)->getType().getDesugaredType(AC) ==
@@ -1273,9 +1276,6 @@ static bool isGRealloc(const CallEvent &Call) {
   assert(FD);
   ASTContext &AC = FD->getASTContext();
 
-  if (isa<CXXMethodDecl>(FD))
-    return false;
-
   return FD->getDeclaredReturnType().getDesugaredType(AC) == AC.VoidPtrTy &&
          FD->getParamDecl(0)->getType().getDesugaredType(AC) == AC.VoidPtrTy &&
          FD->getParamDecl(1)->getType().getDesugaredType(AC) ==
@@ -1284,14 +1284,14 @@ static bool isGRealloc(const CallEvent &Call) {
 
 void MallocChecker::checkRealloc(const CallEvent &Call, CheckerContext &C,
                                  bool ShouldFreeOnFail) const {
-  // HACK: CallDescription currently recognizes non-standard realloc functions
-  // as standard because it doesn't check the type, or wether its a non-method
-  // function. This should be solved by making CallDescription smarter.
-  // Mind that this came from a bug report, and all other functions suffer from
-  // this.
-  // https://bugs.llvm.org/show_bug.cgi?id=46253
+  // Ignore calls to functions whose type does not match the expected type of
+  // either the standard realloc or g_realloc from GLib.
+  // FIXME: Should we perform this kind of checking consistently for each
+  // function? If yes, then perhaps extend the `CallDescription` interface to
+  // handle this.
   if (!isStandardRealloc(Call) && !isGRealloc(Call))
     return;
+
   ProgramStateRef State = C.getState();
   State = ReallocMemAux(C, Call, ShouldFreeOnFail, State, AF_Malloc);
   State = ProcessZeroAllocCheck(Call, 1, State);
@@ -1842,9 +1842,18 @@ static ProgramStateRef MallocUpdateRefState(CheckerContext &C, const Expr *E,
     return nullptr;
 
   SymbolRef Sym = RetVal->getAsLocSymbol();
+
   // This is a return value of a function that was not inlined, such as malloc()
   // or new(). We've checked that in the caller. Therefore, it must be a symbol.
   assert(Sym);
+  // FIXME: In theory this assertion should fail for `alloca()` calls (because
+  // `AllocaRegion`s are not symbolic); but in practice this does not happen.
+  // As the current code appears to work correctly, I'm not touching this issue
+  // now, but it would be good to investigate and clarify this.
+  // Also note that perhaps the special `AllocaRegion` should be replaced by
+  // `SymbolicRegion` (or turned into a subclass of `SymbolicRegion`) to enable
+  // proper tracking of memory allocated by `alloca()` -- and after that change
+  // this assertion would become valid again.
 
   // Set the symbol's state to Allocated.
   return State->set<RegionState>(Sym, RefState::getAllocated(Family, E));
diff --git a/clang/test/Analysis/Inputs/system-header-simulator-cxx.h b/clang/test/Analysis/Inputs/system-header-simulator-cxx.h
index 85db68d..1c2be32 100644
--- a/clang/test/Analysis/Inputs/system-header-simulator-cxx.h
+++ b/clang/test/Analysis/Inputs/system-header-simulator-cxx.h
@@ -1106,6 +1106,7 @@ using ostream = basic_ostream<char>;
 extern std::ostream cout;
 
 ostream &operator<<(ostream &, const string &);
+
 #if __cplusplus >= 202002L
 template <class T>
 ostream &operator<<(ostream &, const std::unique_ptr<T> &);
@@ -1122,11 +1123,12 @@ istream &getline(istream &, string &, char);
 istream &getline(istream &, string &);
 } // namespace std
 
-#ifdef TEST_INLINABLE_ALLOCATORS
 namespace std {
   void *malloc(size_t);
   void free(void *);
-}
+} // namespace std
+
+#ifdef TEST_INLINABLE_ALLOCATORS
 void* operator new(std::size_t size, const std::nothrow_t&) throw() { return std::malloc(size); }
 void* operator new[](std::size_t size, const std::nothrow_t&) throw() { return std::malloc(size); }
 void operator delete(void* ptr, const std::nothrow_t&) throw() { std::free(ptr); }
diff --git a/clang/test/Analysis/cxx-uninitialized-object-ptr-ref.cpp b/clang/test/Analysis/cxx-uninitialized-object-ptr-ref.cpp
index fc067dd..f46a2c9 100644
--- a/clang/test/Analysis/cxx-uninitialized-object-ptr-ref.cpp
+++ b/clang/test/Analysis/cxx-uninitialized-object-ptr-ref.cpp
@@ -1,9 +1,9 @@
-// RUN: %clang_analyze_cc1 -analyzer-checker=core,optin.cplusplus.UninitializedObject \
+// RUN: %clang_analyze_cc1 -analyzer-checker=core,unix.Malloc,optin.cplusplus.UninitializedObject \
 // RUN:   -analyzer-config optin.cplusplus.UninitializedObject:Pedantic=true -DPEDANTIC \
 // RUN:   -analyzer-config optin.cplusplus.UninitializedObject:CheckPointeeInitialization=true \
 // RUN:   -std=c++11 -verify  %s
 
-// RUN: %clang_analyze_cc1 -analyzer-checker=core,optin.cplusplus.UninitializedObject \
+// RUN: %clang_analyze_cc1 -analyzer-checker=core,unix.Malloc,optin.cplusplus.UninitializedObject \
 // RUN:   -analyzer-config optin.cplusplus.UninitializedObject:CheckPointeeInitialization=true \
 // RUN:   -std=c++11 -verify  %s
 
@@ -316,7 +316,10 @@ void fCyclicPointerTest2() {
 
 // Void pointer tests are mainly no-crash tests.
 
-void *malloc(int size);
+typedef __typeof(sizeof(int)) size_t;
+
+void *calloc(size_t nmemb, size_t size);
+void free(void *p);
 
 class VoidPointerTest1 {
   void *vptr;
@@ -328,8 +331,9 @@ public:
 };
 
 void fVoidPointerTest1() {
-  void *vptr = malloc(sizeof(int));
+  void *vptr = calloc(1, sizeof(int));
   VoidPointerTest1(vptr, char());
+  free(vptr);
 }
 
 class VoidPointerTest2 {
@@ -342,8 +346,9 @@ public:
 };
 
 void fVoidPointerTest2() {
-  void *vptr = malloc(sizeof(int));
+  void *vptr = calloc(1, sizeof(int));
   VoidPointerTest2(&vptr, char());
+  free(vptr);
 }
 
 class VoidPointerRRefTest1 {
@@ -359,8 +364,9 @@ upon returning to the caller.  This will be a dangling reference}}
 };
 
 void fVoidPointerRRefTest1() {
-  void *vptr = malloc(sizeof(int));
+  void *vptr = calloc(1, sizeof(int));
   VoidPointerRRefTest1(vptr, char());
+  free(vptr);
 }
 
 class VoidPointerRRefTest2 {
@@ -376,8 +382,9 @@ upon returning to the caller.  This will be a dangling reference}}
 };
 
 void fVoidPointerRRefTest2() {
-  void *vptr = malloc(sizeof(int));
+  void *vptr = calloc(1, sizeof(int));
   VoidPointerRRefTest2(&vptr, char());
+  free(vptr);
 }
 
 class VoidPointerLRefTest {
@@ -393,8 +400,9 @@ upon returning to the caller.  This will be a dangling reference}}
 };
 
 void fVoidPointerLRefTest() {
-  void *vptr = malloc(sizeof(int));
+  void *vptr = calloc(1, sizeof(int));
   VoidPointerLRefTest(vptr, char());
+  free(vptr);
 }
 
 struct CyclicVoidPointerTest {
diff --git a/clang/test/Analysis/exercise-ps.c b/clang/test/Analysis/exercise-ps.c
index d214c39..d1e1771 100644
--- a/clang/test/Analysis/exercise-ps.c
+++ b/clang/test/Analysis/exercise-ps.c
@@ -1,5 +1,5 @@
 // RUN: %clang_analyze_cc1 %s -verify -Wno-error=implicit-function-declaration \
-// RUN:   -analyzer-checker=core \
+// RUN:   -analyzer-checker=core,unix.Malloc \
 // RUN:   -analyzer-config core.CallAndMessage:ArgPointeeInitializedness=true
 //
 // Just exercise the analyzer on code that has at one point caused issues
diff --git a/clang/test/Analysis/explain-svals.cpp b/clang/test/Analysis/explain-svals.cpp
index 30368b6..33fce10 100644
--- a/clang/test/Analysis/explain-svals.cpp
+++ b/clang/test/Analysis/explain-svals.cpp
@@ -1,7 +1,7 @@
 // RUN: %clang_analyze_cc1 -triple i386-apple-darwin10 -verify %s \
-// RUN:   -analyzer-checker=core.builtin \
 // RUN:   -analyzer-checker=debug.ExprInspection \
 // RUN:   -analyzer-checker=unix.cstring \
+// RUN:   -analyzer-checker=unix.Malloc \
 // RUN:   -analyzer-config display-checker-name=false
 
 typedef unsigned long size_t;
diff --git a/clang/test/Analysis/malloc-std-namespace.cpp b/clang/test/Analysis/malloc-std-namespace.cpp
new file mode 100644
index 0000000..d4e397b
--- /dev/null
+++ b/clang/test/Analysis/malloc-std-namespace.cpp
@@ -0,0 +1,24 @@
+// RUN: %clang_analyze_cc1 -analyzer-checker=core,unix.Malloc -verify -analyzer-output=text %s
+
+// This file tests that unix.Malloc can handle C++ code where e.g. malloc and
+// free are declared within the namespace 'std' by the header <cstdlib>.
+
+#include "Inputs/system-header-simulator-cxx.h"
+
+void leak() {
+  int *p = static_cast<int*>(std::malloc(sizeof(int))); // expected-note{{Memory is allocated}}
+} // expected-warning{{Potential leak of memory pointed to by 'p'}}
+  // expected-note@-1{{Potential leak of memory pointed to by 'p'}}
+
+void no_leak() {
+  int *p = static_cast<int*>(std::malloc(sizeof(int)));
+  std::free(p); // no-warning
+}
+
+void invalid_free() {
+  int i;
+  int *p = &i;
+  //expected-note@+2{{Argument to free() is the address of the local variable 'i', which is not memory allocated by malloc()}}
+  //expected-warning@+1{{Argument to free() is the address of the local variable 'i', which is not memory allocated by malloc()}}
+  std::free(p);
+}
diff --git a/clang/test/Analysis/malloc.c b/clang/test/Analysis/malloc.c
index 09cd4b0..e5cb45b 100644
--- a/clang/test/Analysis/malloc.c
+++ b/clang/test/Analysis/malloc.c
@@ -740,6 +740,17 @@ void allocaFree(void) {
   free(p); // expected-warning {{Memory allocated by alloca() should not be deallocated}}
 }
 
+void allocaFreeBuiltin(void) {
+  int *p = __builtin_alloca(sizeof(int));
+  free(p); // expected-warning {{Memory allocated by alloca() should not be deallocated}}
+}
+
+void allocaFreeBuiltinAlign(void) {
+  int *p = __builtin_alloca_with_align(sizeof(int), 64);
+  free(p); // expected-warning {{Memory allocated by alloca() should not be deallocated}}
+}
+
+
 int* mallocEscapeRet(void) {
   int *p = malloc(12);
   return p; // no warning
diff --git a/clang/test/Analysis/malloc.cpp b/clang/test/Analysis/malloc.cpp
index 14b4c05..300b344 100644
--- a/clang/test/Analysis/malloc.cpp
+++ b/clang/test/Analysis/malloc.cpp
@@ -214,3 +214,14 @@ void *realloc(void **ptr, size_t size) { realloc(ptr, size); } // no-crash
 namespace pr46253_paramty2{
 void *realloc(void *ptr, int size) { realloc(ptr, size); } // no-crash
 } // namespace pr46253_paramty2
+
+namespace pr81597 {
+struct S {};
+struct T {
+  void free(const S& s);
+};
+void f(T& t) {
+  S s;
+  t.free(s); // no-warning: This is not the free you are looking for...
+}
+} // namespace pr81597
diff --git a/clang/test/Analysis/stack-addr-ps.c b/clang/test/Analysis/stack-addr-ps.c
index e469396..e69ab41 100644
--- a/clang/test/Analysis/stack-addr-ps.c
+++ b/clang/test/Analysis/stack-addr-ps.c
@@ -1,4 +1,4 @@
-// RUN: %clang_analyze_cc1 -analyzer-checker=core -fblocks -verify %s
+// RUN: %clang_analyze_cc1 -analyzer-checker=core,unix.Malloc -fblocks -verify %s
 
 int* f1(void) {
   int x = 0;
diff --git a/clang/test/Analysis/stackaddrleak.c b/clang/test/Analysis/stackaddrleak.c
index 0583bfc..39c29f2 100644
--- a/clang/test/Analysis/stackaddrleak.c
+++ b/clang/test/Analysis/stackaddrleak.c
@@ -1,5 +1,5 @@
-// RUN: %clang_analyze_cc1 -analyzer-checker=core -verify -std=c99 -Dbool=_Bool -Wno-bool-conversion %s
-// RUN: %clang_analyze_cc1 -analyzer-checker=core -verify -x c++ -Wno-bool-conversion %s
+// RUN: %clang_analyze_cc1 -analyzer-checker=core,unix.Malloc -verify -std=c99 -Dbool=_Bool -Wno-bool-conversion %s
+// RUN: %clang_analyze_cc1 -analyzer-checker=core,unix.Malloc -verify -x c++ -Wno-bool-conversion %s
 
 typedef __INTPTR_TYPE__ intptr_t;
 char const *p;
-- 
cgit v1.1


From 5a46123ddf62900d3dc73330f699c73038645198 Mon Sep 17 00:00:00 2001
From: Utkarsh Saxena <usx@google.com>
Date: Tue, 16 Apr 2024 11:01:03 +0200
Subject: Fix missing dtor in function calls accepting trivial ABI structs
 (#88751)

Fixes https://github.com/llvm/llvm-project/issues/88478

Promoting the `EHCleanup` to `NormalAndEHCleanup` in `EmitCallArgs`
surfaced another bug with deactivation of normal cleanups. Here we
missed emitting CPP scope ends for deactivated normal cleanups. This
patch also fixes that bug.

We missed emitting CPP scope ends because we remove the `fallthrough`
(clears the insertion point) before deactivating normal cleanups. This
is to make the emitted "normal" cleanup code unreachable. But we still
need to emit CPP scope ends in the original basic block even for a
deactivated normal cleanup.
(This worked correctly before we did not remove `fallthrough` for
`EHCleanup`s).
---
 clang/lib/CodeGen/CGCall.cpp                       | 13 ++++----
 clang/lib/CodeGen/CGCleanup.cpp                    | 37 ++++++++++++++--------
 clang/lib/CodeGen/CodeGenFunction.h                |  3 +-
 .../test/CodeGenCXX/control-flow-in-stmt-expr.cpp  | 16 ++++++++++
 4 files changed, 48 insertions(+), 21 deletions(-)

(limited to 'clang')

diff --git a/clang/lib/CodeGen/CGCall.cpp b/clang/lib/CodeGen/CGCall.cpp
index 7a0bc6f..0c860a3 100644
--- a/clang/lib/CodeGen/CGCall.cpp
+++ b/clang/lib/CodeGen/CGCall.cpp
@@ -4694,11 +4694,11 @@ void CodeGenFunction::EmitCallArg(CallArgList &args, const Expr *E,
     AggValueSlot Slot = args.isUsingInAlloca()
         ? createPlaceholderSlot(*this, type) : CreateAggTemp(type, "agg.tmp");
 
-    bool DestroyedInCallee = true, NeedsEHCleanup = true;
+    bool DestroyedInCallee = true, NeedsCleanup = true;
     if (const auto *RD = type->getAsCXXRecordDecl())
       DestroyedInCallee = RD->hasNonTrivialDestructor();
     else
-      NeedsEHCleanup = needsEHCleanup(type.isDestructedType());
+      NeedsCleanup = type.isDestructedType();
 
     if (DestroyedInCallee)
       Slot.setExternallyDestructed();
@@ -4707,14 +4707,15 @@ void CodeGenFunction::EmitCallArg(CallArgList &args, const Expr *E,
     RValue RV = Slot.asRValue();
     args.add(RV, type);
 
-    if (DestroyedInCallee && NeedsEHCleanup) {
+    if (DestroyedInCallee && NeedsCleanup) {
       // Create a no-op GEP between the placeholder and the cleanup so we can
       // RAUW it successfully.  It also serves as a marker of the first
       // instruction where the cleanup is active.
-      pushFullExprCleanup<DestroyUnpassedArg>(EHCleanup, Slot.getAddress(),
-                                              type);
+      pushFullExprCleanup<DestroyUnpassedArg>(NormalAndEHCleanup,
+                                              Slot.getAddress(), type);
       // This unreachable is a temporary marker which will be removed later.
-      llvm::Instruction *IsActive = Builder.CreateUnreachable();
+      llvm::Instruction *IsActive =
+          Builder.CreateFlagLoad(llvm::Constant::getNullValue(Int8PtrTy));
       args.addArgCleanupDeactivation(EHStack.stable_begin(), IsActive);
     }
     return;
diff --git a/clang/lib/CodeGen/CGCleanup.cpp b/clang/lib/CodeGen/CGCleanup.cpp
index 5bf48bc..8683f19 100644
--- a/clang/lib/CodeGen/CGCleanup.cpp
+++ b/clang/lib/CodeGen/CGCleanup.cpp
@@ -634,12 +634,19 @@ static void destroyOptimisticNormalEntry(CodeGenFunction &CGF,
 /// Pops a cleanup block.  If the block includes a normal cleanup, the
 /// current insertion point is threaded through the cleanup, as are
 /// any branch fixups on the cleanup.
-void CodeGenFunction::PopCleanupBlock(bool FallthroughIsBranchThrough) {
+void CodeGenFunction::PopCleanupBlock(bool FallthroughIsBranchThrough,
+                                      bool ForDeactivation) {
   assert(!EHStack.empty() && "cleanup stack is empty!");
   assert(isa<EHCleanupScope>(*EHStack.begin()) && "top not a cleanup!");
   EHCleanupScope &Scope = cast<EHCleanupScope>(*EHStack.begin());
   assert(Scope.getFixupDepth() <= EHStack.getNumBranchFixups());
 
+  // If we are deactivating a normal cleanup, we need to pretend that the
+  // fallthrough is unreachable. We restore this IP before returning.
+  CGBuilderTy::InsertPoint NormalDeactivateOrigIP;
+  if (ForDeactivation && (Scope.isNormalCleanup() || !getLangOpts().EHAsynch)) {
+    NormalDeactivateOrigIP = Builder.saveAndClearIP();
+  }
   // Remember activation information.
   bool IsActive = Scope.isActive();
   Address NormalActiveFlag =
@@ -729,6 +736,8 @@ void CodeGenFunction::PopCleanupBlock(bool FallthroughIsBranchThrough) {
     EHStack.popCleanup(); // safe because there are no fixups
     assert(EHStack.getNumBranchFixups() == 0 ||
            EHStack.hasNormalCleanups());
+    if (NormalDeactivateOrigIP.isSet())
+      Builder.restoreIP(NormalDeactivateOrigIP);
     return;
   }
 
@@ -765,9 +774,16 @@ void CodeGenFunction::PopCleanupBlock(bool FallthroughIsBranchThrough) {
   if (!RequiresNormalCleanup) {
     // Mark CPP scope end for passed-by-value Arg temp
     //   per Windows ABI which is "normally" Cleanup in callee
-    if (IsEHa && getInvokeDest() && Builder.GetInsertBlock()) {
-      if (Personality.isMSVCXXPersonality())
+    if (IsEHa && getInvokeDest()) {
+      // If we are deactivating a normal cleanup then we don't have a
+      // fallthrough. Restore original IP to emit CPP scope ends in the correct
+      // block.
+      if (NormalDeactivateOrigIP.isSet())
+        Builder.restoreIP(NormalDeactivateOrigIP);
+      if (Personality.isMSVCXXPersonality() && Builder.GetInsertBlock())
         EmitSehCppScopeEnd();
+      if (NormalDeactivateOrigIP.isSet())
+        NormalDeactivateOrigIP = Builder.saveAndClearIP();
     }
     destroyOptimisticNormalEntry(*this, Scope);
     Scope.MarkEmitted();
@@ -992,6 +1008,8 @@ void CodeGenFunction::PopCleanupBlock(bool FallthroughIsBranchThrough) {
     }
   }
 
+  if (NormalDeactivateOrigIP.isSet())
+    Builder.restoreIP(NormalDeactivateOrigIP);
   assert(EHStack.hasNormalCleanups() || EHStack.getNumBranchFixups() == 0);
 
   // Emit the EH cleanup if required.
@@ -1281,17 +1299,8 @@ void CodeGenFunction::DeactivateCleanupBlock(EHScopeStack::stable_iterator C,
   // to the current RunCleanupsScope.
   if (C == EHStack.stable_begin() &&
       CurrentCleanupScopeDepth.strictlyEncloses(C)) {
-    // Per comment below, checking EHAsynch is not really necessary
-    // it's there to assure zero-impact w/o EHAsynch option
-    if (!Scope.isNormalCleanup() && getLangOpts().EHAsynch) {
-      PopCleanupBlock();
-    } else {
-      // If it's a normal cleanup, we need to pretend that the
-      // fallthrough is unreachable.
-      CGBuilderTy::InsertPoint SavedIP = Builder.saveAndClearIP();
-      PopCleanupBlock();
-      Builder.restoreIP(SavedIP);
-    }
+    PopCleanupBlock(/*FallthroughIsBranchThrough=*/false,
+                    /*ForDeactivation=*/true);
     return;
   }
 
diff --git a/clang/lib/CodeGen/CodeGenFunction.h b/clang/lib/CodeGen/CodeGenFunction.h
index c49e9fd..d991886 100644
--- a/clang/lib/CodeGen/CodeGenFunction.h
+++ b/clang/lib/CodeGen/CodeGenFunction.h
@@ -957,7 +957,8 @@ public:
 
   /// PopCleanupBlock - Will pop the cleanup entry on the stack and
   /// process all branch fixups.
-  void PopCleanupBlock(bool FallThroughIsBranchThrough = false);
+  void PopCleanupBlock(bool FallThroughIsBranchThrough = false,
+                       bool ForDeactivation = false);
 
   /// DeactivateCleanupBlock - Deactivates the given cleanup block.
   /// The block cannot be reactivated.  Pops it if it's the top of the
diff --git a/clang/test/CodeGenCXX/control-flow-in-stmt-expr.cpp b/clang/test/CodeGenCXX/control-flow-in-stmt-expr.cpp
index 95deee8..0a51b0e 100644
--- a/clang/test/CodeGenCXX/control-flow-in-stmt-expr.cpp
+++ b/clang/test/CodeGenCXX/control-flow-in-stmt-expr.cpp
@@ -391,3 +391,19 @@ void ArrayInitWithContinue() {
                      })};
   }
 }
+
+struct [[clang::trivial_abi]] HasTrivialABI {
+  HasTrivialABI();
+  ~HasTrivialABI();
+};
+void AcceptTrivialABI(HasTrivialABI, int);
+void TrivialABI() {
+  // CHECK-LABEL: define dso_local void @_Z10TrivialABIv()
+  AcceptTrivialABI(HasTrivialABI(), ({
+                     if (foo()) return;
+                     // CHECK:      if.then:
+                     // CHECK-NEXT:   call void @_ZN13HasTrivialABID1Ev
+                     // CHECK-NEXT:   br label %return
+                     0;
+                   }));
+}
-- 
cgit v1.1


From 9141e1c24f87e5735bc4178a018eba4bdf2750aa Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?= <tbaeder@redhat.com>
Date: Fri, 12 Apr 2024 10:43:14 +0200
Subject: [clang][Interp] Gracefully handle bitcasts to non-primitive types

We were calling classfiyPrim() instead of classify().
---
 clang/lib/AST/Interp/ByteCodeExprGen.cpp | 2 +-
 clang/test/AST/Interp/vectors.cpp        | 8 +++++++-
 2 files changed, 8 insertions(+), 2 deletions(-)

(limited to 'clang')

diff --git a/clang/lib/AST/Interp/ByteCodeExprGen.cpp b/clang/lib/AST/Interp/ByteCodeExprGen.cpp
index 01ec31e..5866228 100644
--- a/clang/lib/AST/Interp/ByteCodeExprGen.cpp
+++ b/clang/lib/AST/Interp/ByteCodeExprGen.cpp
@@ -262,7 +262,7 @@ bool ByteCodeExprGen<Emitter>::VisitCastExpr(const CastExpr *CE) {
       return this->discard(SubExpr);
 
     std::optional<PrimType> FromT = classify(SubExpr->getType());
-    std::optional<PrimType> ToT = classifyPrim(CE->getType());
+    std::optional<PrimType> ToT = classify(CE->getType());
     if (!FromT || !ToT)
       return false;
 
diff --git a/clang/test/AST/Interp/vectors.cpp b/clang/test/AST/Interp/vectors.cpp
index 8afef3c..fb5787a 100644
--- a/clang/test/AST/Interp/vectors.cpp
+++ b/clang/test/AST/Interp/vectors.cpp
@@ -1,7 +1,7 @@
 // RUN: %clang_cc1 -fexperimental-new-constant-interpreter -verify=expected,both %s
 // RUN: %clang_cc1 -verify=ref,both %s
 
-// both-no-diagnostics
+// ref-no-diagnostics
 
 typedef int __attribute__((vector_size(16))) VI4;
 constexpr VI4 A = {1,2,3,4};
@@ -20,3 +20,9 @@ namespace Vector {
   }
   constexpr auto v2 = g(4);
 }
+
+/// FIXME: We need to support BitCasts between vector types.
+namespace {
+  typedef float __attribute__((vector_size(16))) VI42;
+  constexpr VI42 A2 = A; // expected-error {{must be initialized by a constant expression}}
+}
-- 
cgit v1.1


From 485d556d8c23b54da952e75c3cadc9db3050fd9e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?= <tbaeder@redhat.com>
Date: Sat, 13 Apr 2024 06:10:38 +0200
Subject: [clang][Interp][NFC] Add Block::dump()

---
 clang/lib/AST/Interp/Disasm.cpp    | 16 ++++++++++++++++
 clang/lib/AST/Interp/InterpBlock.h |  3 +++
 2 files changed, 19 insertions(+)

(limited to 'clang')

diff --git a/clang/lib/AST/Interp/Disasm.cpp b/clang/lib/AST/Interp/Disasm.cpp
index 022b394..ebc4e4f 100644
--- a/clang/lib/AST/Interp/Disasm.cpp
+++ b/clang/lib/AST/Interp/Disasm.cpp
@@ -264,3 +264,19 @@ LLVM_DUMP_METHOD void Record::dump(llvm::raw_ostream &OS, unsigned Indentation,
     ++I;
   }
 }
+
+LLVM_DUMP_METHOD void Block::dump(llvm::raw_ostream &OS) const {
+  {
+    ColorScope SC(OS, true, {llvm::raw_ostream::BRIGHT_BLUE, true});
+    OS << "Block " << (void *)this << "\n";
+  }
+  unsigned NPointers = 0;
+  for (const Pointer *P = Pointers; P; P = P->Next) {
+    ++NPointers;
+  }
+  OS << "  Pointers: " << NPointers << "\n";
+  OS << "  Dead: " << IsDead << "\n";
+  OS << "  Static: " << IsStatic << "\n";
+  OS << "  Extern: " << IsExtern << "\n";
+  OS << "  Initialized: " << IsInitialized << "\n";
+}
diff --git a/clang/lib/AST/Interp/InterpBlock.h b/clang/lib/AST/Interp/InterpBlock.h
index 9db8256..6d5856f 100644
--- a/clang/lib/AST/Interp/InterpBlock.h
+++ b/clang/lib/AST/Interp/InterpBlock.h
@@ -118,6 +118,9 @@ public:
     IsInitialized = false;
   }
 
+  void dump() const { dump(llvm::errs()); }
+  void dump(llvm::raw_ostream &OS) const;
+
 protected:
   friend class Pointer;
   friend class DeadBlock;
-- 
cgit v1.1


From 58b49cef1d772a922a433fd4a42e41db3f18d34b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?= <tbaeder@redhat.com>
Date: Sat, 13 Apr 2024 15:06:22 +0200
Subject: [clang][Interp] Support __builtin_vectorelements

---
 clang/lib/AST/Interp/ByteCodeExprGen.cpp | 9 +++++++++
 clang/test/AST/Interp/vectors.cpp        | 2 ++
 2 files changed, 11 insertions(+)

(limited to 'clang')

diff --git a/clang/lib/AST/Interp/ByteCodeExprGen.cpp b/clang/lib/AST/Interp/ByteCodeExprGen.cpp
index 5866228..93059ed 100644
--- a/clang/lib/AST/Interp/ByteCodeExprGen.cpp
+++ b/clang/lib/AST/Interp/ByteCodeExprGen.cpp
@@ -1251,6 +1251,15 @@ bool ByteCodeExprGen<Emitter>::VisitUnaryExprOrTypeTraitExpr(
     return this->emitConst(Size.getQuantity(), E);
   }
 
+  if (Kind == UETT_VectorElements) {
+    if (const auto *VT = E->getTypeOfArgument()->getAs<VectorType>())
+      return this->emitConst(VT->getNumElements(), E);
+
+    // FIXME: Apparently we need to catch the fact that a sizeless vector type
+    // has been passed and diagnose that (at run time).
+    assert(E->getTypeOfArgument()->isSizelessVectorType());
+  }
+
   return false;
 }
 
diff --git a/clang/test/AST/Interp/vectors.cpp b/clang/test/AST/Interp/vectors.cpp
index fb5787a..6c5d916 100644
--- a/clang/test/AST/Interp/vectors.cpp
+++ b/clang/test/AST/Interp/vectors.cpp
@@ -13,12 +13,14 @@ namespace Vector {
     return VI4 { n * 3, n + 4, n - 5, n / 6 };
   }
   constexpr auto v1 = f(10);
+  static_assert(__builtin_vectorelements(v1) == (16 / sizeof(int)), "");
 
   typedef double __attribute__((vector_size(32))) VD4;
   constexpr VD4 g(int n) {
     return (VD4) { n / 2.0, n + 1.5, n - 5.4, n * 0.9 };
   }
   constexpr auto v2 = g(4);
+  static_assert(__builtin_vectorelements(v2) == (32 / sizeof(double)), "");
 }
 
 /// FIXME: We need to support BitCasts between vector types.
-- 
cgit v1.1


From ca4cf973279a3991248056a73bcb2bac8b37d035 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?= <tbaeder@redhat.com>
Date: Mon, 15 Apr 2024 12:16:55 +0200
Subject: [clang][Interp][NFC] Fix Pointer::isZero() for block pointers

We don't need to consider the offset here anymore since we now
have proper integral pointers.
---
 clang/lib/AST/Interp/Pointer.h | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

(limited to 'clang')

diff --git a/clang/lib/AST/Interp/Pointer.h b/clang/lib/AST/Interp/Pointer.h
index fcd00aa..b447557 100644
--- a/clang/lib/AST/Interp/Pointer.h
+++ b/clang/lib/AST/Interp/Pointer.h
@@ -241,13 +241,10 @@ public:
 
   /// Checks if the pointer is null.
   bool isZero() const {
-    if (Offset != 0)
-      return false;
-
     if (isBlockPointer())
       return asBlockPointer().Pointee == nullptr;
     assert(isIntegralPointer());
-    return asIntPointer().Value == 0;
+    return asIntPointer().Value == 0 && Offset == 0;
   }
   /// Checks if the pointer is live.
   bool isLive() const {
-- 
cgit v1.1


From 31424be3aef4290dd84065b9371fcd0c5014e097 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?= <tbaeder@redhat.com>
Date: Mon, 15 Apr 2024 13:14:41 +0200
Subject: [clang][Interp][NFC] Compare std::optionals directly

---
 clang/lib/AST/Interp/ByteCodeExprGen.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'clang')

diff --git a/clang/lib/AST/Interp/ByteCodeExprGen.cpp b/clang/lib/AST/Interp/ByteCodeExprGen.cpp
index 93059ed..4a7b404 100644
--- a/clang/lib/AST/Interp/ByteCodeExprGen.cpp
+++ b/clang/lib/AST/Interp/ByteCodeExprGen.cpp
@@ -1624,7 +1624,7 @@ bool ByteCodeExprGen<Emitter>::VisitCompoundAssignOperator(
     return false;
   if (!this->emitLoad(*LT, E))
     return false;
-  if (*LT != *LHSComputationT) {
+  if (LT != LHSComputationT) {
     if (!this->emitCast(*LT, *LHSComputationT, E))
       return false;
   }
@@ -1680,7 +1680,7 @@ bool ByteCodeExprGen<Emitter>::VisitCompoundAssignOperator(
   }
 
   // And now cast from LHSComputationT to ResultT.
-  if (*ResultT != *LHSComputationT) {
+  if (ResultT != LHSComputationT) {
     if (!this->emitCast(*LHSComputationT, *ResultT, E))
       return false;
   }
-- 
cgit v1.1


From a831c54357c2bb7b8b457ccea22836c23e8b8625 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?= <tbaeder@redhat.com>
Date: Mon, 15 Apr 2024 14:17:31 +0200
Subject: [clang][Interp] Avoid calling invalid functions

Check if the non-null function pointer is even valid before calling
the function.
---
 clang/lib/AST/Interp/FunctionPointer.h |  1 +
 clang/lib/AST/Interp/Interp.h          |  4 ++++
 clang/test/AST/Interp/functions.cpp    | 15 +++++++++++++--
 3 files changed, 18 insertions(+), 2 deletions(-)

(limited to 'clang')

diff --git a/clang/lib/AST/Interp/FunctionPointer.h b/clang/lib/AST/Interp/FunctionPointer.h
index c2ea295..fc3d7a4 100644
--- a/clang/lib/AST/Interp/FunctionPointer.h
+++ b/clang/lib/AST/Interp/FunctionPointer.h
@@ -32,6 +32,7 @@ public:
 
   const Function *getFunction() const { return Func; }
   bool isZero() const { return !Func; }
+  bool isValid() const { return Valid; }
   bool isWeak() const {
     if (!Func || !Valid)
       return false;
diff --git a/clang/lib/AST/Interp/Interp.h b/clang/lib/AST/Interp/Interp.h
index 4182254..dd0bacd 100644
--- a/clang/lib/AST/Interp/Interp.h
+++ b/clang/lib/AST/Interp/Interp.h
@@ -2236,6 +2236,10 @@ inline bool CallPtr(InterpState &S, CodePtr OpPC, uint32_t ArgSize,
         << const_cast<Expr *>(E) << E->getSourceRange();
     return false;
   }
+
+  if (!FuncPtr.isValid())
+    return false;
+
   assert(F);
 
   // Check argument nullability state.
diff --git a/clang/test/AST/Interp/functions.cpp b/clang/test/AST/Interp/functions.cpp
index 4fb3c81..f9bb5d5 100644
--- a/clang/test/AST/Interp/functions.cpp
+++ b/clang/test/AST/Interp/functions.cpp
@@ -584,9 +584,20 @@ namespace VariadicOperator {
 namespace WeakCompare {
   [[gnu::weak]]void weak_method();
   static_assert(weak_method != nullptr, ""); // both-error {{not an integral constant expression}} \
-                                         // both-note {{comparison against address of weak declaration '&weak_method' can only be performed at runtim}}
+                                             // both-note {{comparison against address of weak declaration '&weak_method' can only be performed at runtim}}
 
   constexpr auto A = &weak_method;
   static_assert(A != nullptr, ""); // both-error {{not an integral constant expression}} \
-                               // both-note {{comparison against address of weak declaration '&weak_method' can only be performed at runtim}}
+                                   // both-note {{comparison against address of weak declaration '&weak_method' can only be performed at runtim}}
+}
+
+namespace FromIntegral {
+#if __cplusplus >= 202002L
+  typedef double (*DoubleFn)();
+  int a[(int)DoubleFn((void*)-1)()]; // both-error {{not allowed at file scope}} \
+                                    // both-warning {{variable length arrays}}
+  int b[(int)DoubleFn((void*)(-1 + 1))()]; // both-error {{not allowed at file scope}} \
+                                           // expected-note {{evaluates to a null function pointer}} \
+                                           // both-warning {{variable length arrays}}
+#endif
 }
-- 
cgit v1.1


From b0194d2894db49d7cf4d36aed87952c3e0c6a390 Mon Sep 17 00:00:00 2001
From: Phoebe Wang <phoebe.wang@intel.com>
Date: Tue, 16 Apr 2024 18:19:50 +0800
Subject: [SEH] Ignore async exception flag when the environment is not MSVC
 (#88101)

Fixes #62449
---
 clang/lib/Driver/ToolChains/Clang.cpp          | 28 ++++++++++++++++++--------
 clang/test/Driver/windows-seh-async-verify.cpp | 24 ++++++++++++++++++++++
 2 files changed, 44 insertions(+), 8 deletions(-)
 create mode 100644 clang/test/Driver/windows-seh-async-verify.cpp

(limited to 'clang')

diff --git a/clang/lib/Driver/ToolChains/Clang.cpp b/clang/lib/Driver/ToolChains/Clang.cpp
index 6d52ece..096ed14 100644
--- a/clang/lib/Driver/ToolChains/Clang.cpp
+++ b/clang/lib/Driver/ToolChains/Clang.cpp
@@ -346,11 +346,14 @@ static bool addExceptionArgs(const ArgList &Args, types::ID InputType,
   bool EH = Args.hasFlag(options::OPT_fexceptions, options::OPT_fno_exceptions,
                          false);
 
-  bool EHa = Args.hasFlag(options::OPT_fasync_exceptions,
-                          options::OPT_fno_async_exceptions, false);
-  if (EHa) {
-    CmdArgs.push_back("-fasync-exceptions");
-    EH = true;
+  // Async exceptions are Windows MSVC only.
+  if (Triple.isWindowsMSVCEnvironment()) {
+    bool EHa = Args.hasFlag(options::OPT_fasync_exceptions,
+                            options::OPT_fno_async_exceptions, false);
+    if (EHa) {
+      CmdArgs.push_back("-fasync-exceptions");
+      EH = true;
+    }
   }
 
   // Obj-C exceptions are enabled by default, regardless of -fexceptions. This
@@ -8102,7 +8105,8 @@ struct EHFlags {
 ///      The 'a' modifier is unimplemented and fundamentally hard in LLVM IR.
 /// - c: Assume that extern "C" functions are implicitly nounwind.
 /// The default is /EHs-c-, meaning cleanups are disabled.
-static EHFlags parseClangCLEHFlags(const Driver &D, const ArgList &Args) {
+static EHFlags parseClangCLEHFlags(const Driver &D, const ArgList &Args,
+                                   bool isWindowsMSVC) {
   EHFlags EH;
 
   std::vector<std::string> EHArgs =
@@ -8112,8 +8116,15 @@ static EHFlags parseClangCLEHFlags(const Driver &D, const ArgList &Args) {
       switch (EHVal[I]) {
       case 'a':
         EH.Asynch = maybeConsumeDash(EHVal, I);
-        if (EH.Asynch)
+        if (EH.Asynch) {
+          // Async exceptions are Windows MSVC only.
+          if (!isWindowsMSVC) {
+            EH.Asynch = false;
+            D.Diag(clang::diag::warn_drv_unused_argument) << "/EHa" << EHVal;
+            continue;
+          }
           EH.Synch = false;
+        }
         continue;
       case 'c':
         EH.NoUnwindC = maybeConsumeDash(EHVal, I);
@@ -8177,7 +8188,8 @@ void Clang::AddClangCLArgs(const ArgList &Args, types::ID InputType,
 
   const Driver &D = getToolChain().getDriver();
 
-  EHFlags EH = parseClangCLEHFlags(D, Args);
+  bool IsWindowsMSVC = getToolChain().getTriple().isWindowsMSVCEnvironment();
+  EHFlags EH = parseClangCLEHFlags(D, Args, IsWindowsMSVC);
   if (!isNVPTX && (EH.Synch || EH.Asynch)) {
     if (types::isCXX(InputType))
       CmdArgs.push_back("-fcxx-exceptions");
diff --git a/clang/test/Driver/windows-seh-async-verify.cpp b/clang/test/Driver/windows-seh-async-verify.cpp
new file mode 100644
index 0000000..5fda6a7
--- /dev/null
+++ b/clang/test/Driver/windows-seh-async-verify.cpp
@@ -0,0 +1,24 @@
+// RUN: %clang --target=x86_64-pc-windows -fasync-exceptions -fsyntax-only %s -### 2>&1 | FileCheck %s
+// RUN: %clang_cl --target=x86_64-pc-windows /EHa -fsyntax-only %s -### 2>&1 | FileCheck %s
+// RUN: %clang --target=x86_64-pc-windows-gnu -fasync-exceptions -fsyntax-only %s -### 2>&1 | FileCheck %s --check-prefixes=GNU-ALL,GNU
+// RUN: %clang_cl --target=x86_64-pc-windows-gnu /EHa -fsyntax-only %s -### 2>&1 | FileCheck %s --check-prefixes=GNU-ALL,CL-GNU
+
+// CHECK-NOT: warning
+// GNU: warning: argument unused during compilation: '-fasync-exceptions' [-Wunused-command-line-argument]
+// CL-GNU: warning: argument unused during compilation: '/EHa' [-Wunused-command-line-argument]
+
+// CHECK: -fasync-exceptions
+// GNU-ALL-NOT: -fasync-exceptions
+struct S {
+    union _Un {
+        ~_Un() {}
+        char _Buf[12];
+    };
+    _Un _un;
+};
+
+struct Embed {
+    S v2;
+};
+
+void PR62449() { Embed v{}; }
-- 
cgit v1.1


From c09384e2b419c7b4e4167e0d0295d9018cc6169c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?= <tbaeder@redhat.com>
Date: Mon, 15 Apr 2024 15:11:23 +0200
Subject: [clang][Interp] Support MemberExprs pointing to VarDecls

---
 clang/lib/AST/Interp/ByteCodeExprGen.cpp | 11 +++++++++--
 clang/test/AST/Interp/records.cpp        |  8 ++++++++
 2 files changed, 17 insertions(+), 2 deletions(-)

(limited to 'clang')

diff --git a/clang/lib/AST/Interp/ByteCodeExprGen.cpp b/clang/lib/AST/Interp/ByteCodeExprGen.cpp
index 4a7b404..a069f3e 100644
--- a/clang/lib/AST/Interp/ByteCodeExprGen.cpp
+++ b/clang/lib/AST/Interp/ByteCodeExprGen.cpp
@@ -1267,10 +1267,19 @@ template <class Emitter>
 bool ByteCodeExprGen<Emitter>::VisitMemberExpr(const MemberExpr *E) {
   // 'Base.Member'
   const Expr *Base = E->getBase();
+  const ValueDecl *Member = E->getMemberDecl();
 
   if (DiscardResult)
     return this->discard(Base);
 
+  if (const auto *VD = dyn_cast<VarDecl>(Member)) {
+    // I am almost confident in saying that a var decl must be static
+    // and therefore registered as a global variable. But this will probably
+    // turn out to be wrong some time in the future, as always.
+    if (auto GlobalIndex = P.getGlobal(VD))
+      return this->emitGetPtrGlobal(*GlobalIndex, E);
+  }
+
   if (Initializing) {
     if (!this->delegate(Base))
       return false;
@@ -1280,8 +1289,6 @@ bool ByteCodeExprGen<Emitter>::VisitMemberExpr(const MemberExpr *E) {
   }
 
   // Base above gives us a pointer on the stack.
-  // TODO: Implement non-FieldDecl members.
-  const ValueDecl *Member = E->getMemberDecl();
   if (const auto *FD = dyn_cast<FieldDecl>(Member)) {
     const RecordDecl *RD = FD->getParent();
     const Record *R = getRecord(RD);
diff --git a/clang/test/AST/Interp/records.cpp b/clang/test/AST/Interp/records.cpp
index f251497..2c33fa1 100644
--- a/clang/test/AST/Interp/records.cpp
+++ b/clang/test/AST/Interp/records.cpp
@@ -1309,3 +1309,11 @@ namespace pr18633 {
     func2<int>();
   }
 }
+
+namespace {
+  struct F {
+    static constexpr int Z = 12;
+  };
+  F f;
+  static_assert(f.Z == 12, "");
+}
-- 
cgit v1.1


From 1120d8e6f799121b611aa23bdc128e40cf9c6c58 Mon Sep 17 00:00:00 2001
From: Alex Voicu <alexandru.voicu@amd.com>
Date: Tue, 16 Apr 2024 13:37:29 +0300
Subject: [clang][CodeGen] Add AS for Globals to SPIR & SPIRV datalayouts
 (#88455)

Currently neither the SPIR nor the SPIRV targets specify the AS for
globals in their datalayout strings. This is problematic because
CodeGen/LLVM will default to AS0 in this case, which produces Globals
that end up in the private address space for e.g. OCL, HIPSPV or SYCL.
This patch addresses it by completing the datalayout string.
---
 clang/lib/Basic/Targets/SPIR.h   | 8 ++++----
 clang/test/CodeGen/target-data.c | 4 ++--
 2 files changed, 6 insertions(+), 6 deletions(-)

(limited to 'clang')

diff --git a/clang/lib/Basic/Targets/SPIR.h b/clang/lib/Basic/Targets/SPIR.h
index e25991e..9a4a8b5 100644
--- a/clang/lib/Basic/Targets/SPIR.h
+++ b/clang/lib/Basic/Targets/SPIR.h
@@ -259,7 +259,7 @@ public:
     SizeType = TargetInfo::UnsignedInt;
     PtrDiffType = IntPtrType = TargetInfo::SignedInt;
     resetDataLayout("e-p:32:32-i64:64-v16:16-v24:32-v32:32-v48:64-"
-                    "v96:128-v192:256-v256:256-v512:512-v1024:1024");
+                    "v96:128-v192:256-v256:256-v512:512-v1024:1024-G1");
   }
 
   void getTargetDefines(const LangOptions &Opts,
@@ -276,7 +276,7 @@ public:
     SizeType = TargetInfo::UnsignedLong;
     PtrDiffType = IntPtrType = TargetInfo::SignedLong;
     resetDataLayout("e-i64:64-v16:16-v24:32-v32:32-v48:64-"
-                    "v96:128-v192:256-v256:256-v512:512-v1024:1024");
+                    "v96:128-v192:256-v256:256-v512:512-v1024:1024-G1");
   }
 
   void getTargetDefines(const LangOptions &Opts,
@@ -336,7 +336,7 @@ public:
     SizeType = TargetInfo::UnsignedInt;
     PtrDiffType = IntPtrType = TargetInfo::SignedInt;
     resetDataLayout("e-p:32:32-i64:64-v16:16-v24:32-v32:32-v48:64-"
-                    "v96:128-v192:256-v256:256-v512:512-v1024:1024");
+                    "v96:128-v192:256-v256:256-v512:512-v1024:1024-G1");
   }
 
   void getTargetDefines(const LangOptions &Opts,
@@ -357,7 +357,7 @@ public:
     SizeType = TargetInfo::UnsignedLong;
     PtrDiffType = IntPtrType = TargetInfo::SignedLong;
     resetDataLayout("e-i64:64-v16:16-v24:32-v32:32-v48:64-"
-                    "v96:128-v192:256-v256:256-v512:512-v1024:1024");
+                    "v96:128-v192:256-v256:256-v512:512-v1024:1024-G1");
   }
 
   void getTargetDefines(const LangOptions &Opts,
diff --git a/clang/test/CodeGen/target-data.c b/clang/test/CodeGen/target-data.c
index acff367..c184f31 100644
--- a/clang/test/CodeGen/target-data.c
+++ b/clang/test/CodeGen/target-data.c
@@ -251,11 +251,11 @@
 
 // RUN: %clang_cc1 -triple spir-unknown -o - -emit-llvm %s | \
 // RUN: FileCheck %s -check-prefix=SPIR
-// SPIR: target datalayout = "e-p:32:32-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024"
+// SPIR: target datalayout = "e-p:32:32-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-G1"
 
 // RUN: %clang_cc1 -triple spir64-unknown -o - -emit-llvm %s | \
 // RUN: FileCheck %s -check-prefix=SPIR64
-// SPIR64: target datalayout = "e-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024"
+// SPIR64: target datalayout = "e-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-G1"
 
 // RUN: %clang_cc1 -triple bpfel -o - -emit-llvm %s | \
 // RUN: FileCheck %s -check-prefix=BPFEL
-- 
cgit v1.1


From 32b74ca6e41768c91eee8b8ca26235b110a65deb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?= <tbaeder@redhat.com>
Date: Mon, 15 Apr 2024 15:41:33 +0200
Subject: [clang][Interp] Load value from MemberExpr if required

---
 clang/lib/AST/Interp/ByteCodeExprGen.cpp | 17 ++++++++++++++---
 clang/test/AST/Interp/cxx03.cpp          | 14 ++++++++++++++
 2 files changed, 28 insertions(+), 3 deletions(-)

(limited to 'clang')

diff --git a/clang/lib/AST/Interp/ByteCodeExprGen.cpp b/clang/lib/AST/Interp/ByteCodeExprGen.cpp
index a069f3e..00c4a9f 100644
--- a/clang/lib/AST/Interp/ByteCodeExprGen.cpp
+++ b/clang/lib/AST/Interp/ByteCodeExprGen.cpp
@@ -1272,12 +1272,23 @@ bool ByteCodeExprGen<Emitter>::VisitMemberExpr(const MemberExpr *E) {
   if (DiscardResult)
     return this->discard(Base);
 
+  // MemberExprs are almost always lvalues, in which case we don't need to
+  // do the load. But sometimes they aren't.
+  const auto maybeLoadValue = [&]() -> bool {
+    if (E->isGLValue())
+      return true;
+    if (std::optional<PrimType> T = classify(E))
+      return this->emitLoadPop(*T, E);
+    return false;
+  };
+
   if (const auto *VD = dyn_cast<VarDecl>(Member)) {
     // I am almost confident in saying that a var decl must be static
     // and therefore registered as a global variable. But this will probably
     // turn out to be wrong some time in the future, as always.
     if (auto GlobalIndex = P.getGlobal(VD))
-      return this->emitGetPtrGlobal(*GlobalIndex, E);
+      return this->emitGetPtrGlobal(*GlobalIndex, E) && maybeLoadValue();
+    return false;
   }
 
   if (Initializing) {
@@ -1295,8 +1306,8 @@ bool ByteCodeExprGen<Emitter>::VisitMemberExpr(const MemberExpr *E) {
     const Record::Field *F = R->getField(FD);
     // Leave a pointer to the field on the stack.
     if (F->Decl->getType()->isReferenceType())
-      return this->emitGetFieldPop(PT_Ptr, F->Offset, E);
-    return this->emitGetPtrField(F->Offset, E);
+      return this->emitGetFieldPop(PT_Ptr, F->Offset, E) && maybeLoadValue();
+    return this->emitGetPtrField(F->Offset, E) && maybeLoadValue();
   }
 
   return false;
diff --git a/clang/test/AST/Interp/cxx03.cpp b/clang/test/AST/Interp/cxx03.cpp
index d30cbb2..b6aaf08 100644
--- a/clang/test/AST/Interp/cxx03.cpp
+++ b/clang/test/AST/Interp/cxx03.cpp
@@ -10,3 +10,17 @@ namespace NonInitializingMemberExpr {
                                                                                               // both-note {{required by}} \
                                                                                               // both-note {{subexpression not valid}}
 }
+
+
+namespace NonLValueMemberExpr {
+  struct PODType {
+    int value;
+  };
+
+#define ATTR __attribute__((require_constant_initialization))
+  struct TT1 {
+    ATTR static const int &subobj_init;
+  };
+
+  const int &TT1::subobj_init = PODType().value;
+}
-- 
cgit v1.1


From 09e7d7585cf881fb598eb56738579b84d027318c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?= <tbaeder@redhat.com>
Date: Tue, 16 Apr 2024 07:52:39 +0200
Subject: [clang][Interp] Don't add 'in call to' diagnostics for builtin frames

---
 clang/lib/AST/Interp/InterpFrame.cpp        |  7 +++++++
 clang/lib/AST/Interp/State.cpp              |  5 +++--
 clang/test/AST/Interp/builtin-functions.cpp | 24 ++++++++----------------
 3 files changed, 18 insertions(+), 18 deletions(-)

(limited to 'clang')

diff --git a/clang/lib/AST/Interp/InterpFrame.cpp b/clang/lib/AST/Interp/InterpFrame.cpp
index 12e2e6f..ba95754 100644
--- a/clang/lib/AST/Interp/InterpFrame.cpp
+++ b/clang/lib/AST/Interp/InterpFrame.cpp
@@ -152,6 +152,13 @@ void print(llvm::raw_ostream &OS, const Pointer &P, ASTContext &Ctx,
 }
 
 void InterpFrame::describe(llvm::raw_ostream &OS) const {
+  // We create frames for builtin functions as well, but we can't reliably
+  // diagnose them. The 'in call to' diagnostics for them add no value to the
+  // user _and_ it doesn't generally work since the argument types don't always
+  // match the function prototype. Just ignore them.
+  if (const auto *F = getFunction(); F && F->isBuiltin())
+    return;
+
   const FunctionDecl *F = getCallee();
   if (const auto *M = dyn_cast<CXXMethodDecl>(F);
       M && M->isInstance() && !isa<CXXConstructorDecl>(F)) {
diff --git a/clang/lib/AST/Interp/State.cpp b/clang/lib/AST/Interp/State.cpp
index 47fbf51..0d9dade 100644
--- a/clang/lib/AST/Interp/State.cpp
+++ b/clang/lib/AST/Interp/State.cpp
@@ -155,7 +155,8 @@ void State::addCallStack(unsigned Limit) {
     SmallString<128> Buffer;
     llvm::raw_svector_ostream Out(Buffer);
     F->describe(Out);
-    addDiag(CallRange.getBegin(), diag::note_constexpr_call_here)
-        << Out.str() << CallRange;
+    if (!Buffer.empty())
+      addDiag(CallRange.getBegin(), diag::note_constexpr_call_here)
+          << Out.str() << CallRange;
   }
 }
diff --git a/clang/test/AST/Interp/builtin-functions.cpp b/clang/test/AST/Interp/builtin-functions.cpp
index a7adc92..1a29a66 100644
--- a/clang/test/AST/Interp/builtin-functions.cpp
+++ b/clang/test/AST/Interp/builtin-functions.cpp
@@ -24,16 +24,13 @@ namespace strcmp {
   static_assert(__builtin_strcmp("abab", "abab\0banana") == 0, "");
   static_assert(__builtin_strcmp("abab\0banana", "abab\0canada") == 0, "");
   static_assert(__builtin_strcmp(0, "abab") == 0, ""); // both-error {{not an integral constant}} \
-                                                       // both-note {{dereferenced null}} \
-                                                       // expected-note {{in call to}}
+                                                       // both-note {{dereferenced null}}
   static_assert(__builtin_strcmp("abab", 0) == 0, ""); // both-error {{not an integral constant}} \
-                                                       // both-note {{dereferenced null}} \
-                                                       // expected-note {{in call to}}
+                                                       // both-note {{dereferenced null}}
 
   static_assert(__builtin_strcmp(kFoobar, kFoobazfoobar) == -1, "");
   static_assert(__builtin_strcmp(kFoobar, kFoobazfoobar + 6) == 0, ""); // both-error {{not an integral constant}} \
-                                                                        // both-note {{dereferenced one-past-the-end}} \
-                                                                        // expected-note {{in call to}}
+                                                                        // both-note {{dereferenced one-past-the-end}}
 
   /// Used to assert because we're passing a dummy pointer to
   /// __builtin_strcmp() when evaluating the return statement.
@@ -72,14 +69,11 @@ constexpr const char *a = "foo\0quux";
   static_assert(check(c), "");
 
   constexpr int over1 = __builtin_strlen(a + 9); // both-error {{constant expression}} \
-                                                 // both-note {{one-past-the-end}} \
-                                                 // expected-note {{in call to}}
+                                                 // both-note {{one-past-the-end}}
   constexpr int over2 = __builtin_strlen(b + 9); // both-error {{constant expression}} \
-                                                 // both-note {{one-past-the-end}} \
-                                                 // expected-note {{in call to}}
+                                                 // both-note {{one-past-the-end}}
   constexpr int over3 = __builtin_strlen(c + 9); // both-error {{constant expression}} \
-                                                 // both-note {{one-past-the-end}} \
-                                                 // expected-note {{in call to}}
+                                                 // both-note {{one-past-the-end}}
 
   constexpr int under1 = __builtin_strlen(a - 1); // both-error {{constant expression}} \
                                                   // both-note {{cannot refer to element -1}}
@@ -90,8 +84,7 @@ constexpr const char *a = "foo\0quux";
 
   constexpr char d[] = { 'f', 'o', 'o' }; // no nul terminator.
   constexpr int bad = __builtin_strlen(d); // both-error {{constant expression}} \
-                                           // both-note {{one-past-the-end}} \
-                                           // expected-note {{in call to}}
+                                           // both-note {{one-past-the-end}}
 }
 
 namespace nan {
@@ -114,8 +107,7 @@ namespace nan {
   /// FIXME: Current interpreter misses diagnostics.
   constexpr char f2[] = {'0', 'x', 'A', 'E'}; /// No trailing 0 byte.
   constexpr double NaN7 = __builtin_nan(f2); // both-error {{must be initialized by a constant expression}} \
-                                             // expected-note {{read of dereferenced one-past-the-end pointer}} \
-                                             // expected-note {{in call to}}
+                                             // expected-note {{read of dereferenced one-past-the-end pointer}}
   static_assert(!__builtin_issignaling(__builtin_nan("")), "");
   static_assert(__builtin_issignaling(__builtin_nans("")), "");
 }
-- 
cgit v1.1


From a8de3ee8994023ea7669397587f8118ae5bba9c9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?= <tbaeder@redhat.com>
Date: Tue, 16 Apr 2024 13:29:10 +0200
Subject: [clang][Interp][NFC] Fix some build warnings

Fixes:
/buildbot/worker/arc-folder/llvm-project/clang/lib/AST/Interp/Disasm.cpp:143:25: warning: cast from type 'const clang::interp::Block*' to type 'void*' casts away qualifiers [-Wcast-qual]
/buildbot/worker/arc-folder/llvm-project/clang/lib/AST/Interp/Disasm.cpp:271:23: warning: cast from type 'const clang::interp::Block*' to type 'void*' casts away qualifiers [-Wcast-qual]
---
 clang/lib/AST/Interp/Disasm.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'clang')

diff --git a/clang/lib/AST/Interp/Disasm.cpp b/clang/lib/AST/Interp/Disasm.cpp
index ebc4e4f..d127f33 100644
--- a/clang/lib/AST/Interp/Disasm.cpp
+++ b/clang/lib/AST/Interp/Disasm.cpp
@@ -140,7 +140,7 @@ LLVM_DUMP_METHOD void Program::dump(llvm::raw_ostream &OS) const {
     const Descriptor *Desc = G->block()->getDescriptor();
     Pointer GP = getPtrGlobal(GI);
 
-    OS << GI << ": " << (void *)G->block() << " ";
+    OS << GI << ": " << (const void *)G->block() << " ";
     {
       ColorScope SC(OS, true,
                     GP.isInitialized()
@@ -268,7 +268,7 @@ LLVM_DUMP_METHOD void Record::dump(llvm::raw_ostream &OS, unsigned Indentation,
 LLVM_DUMP_METHOD void Block::dump(llvm::raw_ostream &OS) const {
   {
     ColorScope SC(OS, true, {llvm::raw_ostream::BRIGHT_BLUE, true});
-    OS << "Block " << (void *)this << "\n";
+    OS << "Block " << (const void *)this << "\n";
   }
   unsigned NPointers = 0;
   for (const Pointer *P = Pointers; P; P = P->Next) {
-- 
cgit v1.1


From 71b9f6648222771470473431bc8ef2a2c25e872c Mon Sep 17 00:00:00 2001
From: Krystian Stasiowski <sdkrystian@gmail.com>
Date: Tue, 16 Apr 2024 07:34:27 -0400
Subject: [clang][Index] Use canonical function parameter types in USRs
 (#68222)

This is necessary to ensure that functions declared in different
translation units whose parameter types only differ in top-level
cv-qualification generate the same USR.

For example:
```
// A.cpp
void f(const int x); // c:@F@f#1I#

// B.cpp
void f(int x);       // c:@F@f#I#
```
With this patch, the USR for both functions will be
`c:@F@f#I#`.
---
 clang/lib/Index/USRGeneration.cpp  |  9 ++++++---
 clang/test/Index/USR/func-type.cpp | 12 ++++++++++++
 2 files changed, 18 insertions(+), 3 deletions(-)

(limited to 'clang')

diff --git a/clang/lib/Index/USRGeneration.cpp b/clang/lib/Index/USRGeneration.cpp
index 5acc861..31c4a33 100644
--- a/clang/lib/Index/USRGeneration.cpp
+++ b/clang/lib/Index/USRGeneration.cpp
@@ -267,10 +267,13 @@ void USRGenerator::VisitFunctionDecl(const FunctionDecl *D) {
     Out << '>';
   }
 
+  QualType CanonicalType = D->getType().getCanonicalType();
   // Mangle in type information for the arguments.
-  for (auto *PD : D->parameters()) {
-    Out << '#';
-    VisitType(PD->getType());
+  if (const auto *FPT = CanonicalType->getAs<FunctionProtoType>()) {
+    for (QualType PT : FPT->param_types()) {
+      Out << '#';
+      VisitType(PT);
+    }
   }
   if (D->isVariadic())
     Out << '.';
diff --git a/clang/test/Index/USR/func-type.cpp b/clang/test/Index/USR/func-type.cpp
index ff1cd37..459a8cd 100644
--- a/clang/test/Index/USR/func-type.cpp
+++ b/clang/test/Index/USR/func-type.cpp
@@ -16,3 +16,15 @@ void Func( void (* (*)(int, int))(int, int) );
 // CHECK: {{[0-9]+}}:6 | function/C | Func | c:@F@Func#*F*Fv(#I#I)(#I#I)# |
 void Func( void (* (*)(int, int, int))(int) );
 // CHECK: {{[0-9]+}}:6 | function/C | Func | c:@F@Func#*F*Fv(#I)(#I#I#I)# |
+
+// Functions with parameter types that only differ in top-level cv-qualification should generate the same USR.
+
+void f( const int );
+// CHECK: {{[0-9]+}}:6 | function/C | f | c:@F@f#I# |
+void f( int );
+// CHECK: {{[0-9]+}}:6 | function/C | f | c:@F@f#I# |
+
+void g( int );
+// CHECK: {{[0-9]+}}:6 | function/C | g | c:@F@g#I# |
+void g( const int );
+// CHECK: {{[0-9]+}}:6 | function/C | g | c:@F@g#I# |
-- 
cgit v1.1


From 75244a1043d2be5003dea6914d5edc940c437cd5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?= <tbaeder@redhat.com>
Date: Tue, 16 Apr 2024 09:44:54 +0200
Subject: [clang][Interp] Implement align builtins

__builtin_is_aligned
__builtin_is_align_up
__builtin_is_align_down
---
 clang/lib/AST/Interp/InterpBuiltin.cpp      | 118 +++++++++++++
 clang/test/AST/Interp/builtin-align-cxx.cpp | 258 ++++++++++++++++++++++++++++
 2 files changed, 376 insertions(+)
 create mode 100644 clang/test/AST/Interp/builtin-align-cxx.cpp

(limited to 'clang')

diff --git a/clang/lib/AST/Interp/InterpBuiltin.cpp b/clang/lib/AST/Interp/InterpBuiltin.cpp
index 984ba4f..f562f9e 100644
--- a/clang/lib/AST/Interp/InterpBuiltin.cpp
+++ b/clang/lib/AST/Interp/InterpBuiltin.cpp
@@ -977,6 +977,117 @@ static bool interp__builtin_complex(InterpState &S, CodePtr OpPC,
   return true;
 }
 
+/// __builtin_is_aligned()
+/// __builtin_align_up()
+/// __builtin_align_down()
+/// The first parameter is either an integer or a pointer.
+/// The second parameter is the requested alignment as an integer.
+static bool interp__builtin_is_aligned_up_down(InterpState &S, CodePtr OpPC,
+                                               const InterpFrame *Frame,
+                                               const Function *Func,
+                                               const CallExpr *Call) {
+  unsigned BuiltinOp = Func->getBuiltinID();
+  unsigned CallSize = callArgSize(S, Call);
+
+  PrimType AlignmentT = *S.Ctx.classify(Call->getArg(1));
+  const APSInt &Alignment = peekToAPSInt(S.Stk, AlignmentT);
+
+  if (Alignment < 0 || !Alignment.isPowerOf2()) {
+    S.FFDiag(Call, diag::note_constexpr_invalid_alignment) << Alignment;
+    return false;
+  }
+  unsigned SrcWidth = S.getCtx().getIntWidth(Call->getArg(0)->getType());
+  APSInt MaxValue(APInt::getOneBitSet(SrcWidth, SrcWidth - 1));
+  if (APSInt::compareValues(Alignment, MaxValue) > 0) {
+    S.FFDiag(Call, diag::note_constexpr_alignment_too_big)
+        << MaxValue << Call->getArg(0)->getType() << Alignment;
+    return false;
+  }
+
+  // The first parameter is either an integer or a pointer (but not a function
+  // pointer).
+  PrimType FirstArgT = *S.Ctx.classify(Call->getArg(0));
+
+  if (isIntegralType(FirstArgT)) {
+    const APSInt &Src = peekToAPSInt(S.Stk, FirstArgT, CallSize);
+    APSInt Align = Alignment.extOrTrunc(Src.getBitWidth());
+    if (BuiltinOp == Builtin::BI__builtin_align_up) {
+      APSInt AlignedVal =
+          APSInt((Src + (Align - 1)) & ~(Align - 1), Src.isUnsigned());
+      pushInteger(S, AlignedVal, Call->getType());
+    } else if (BuiltinOp == Builtin::BI__builtin_align_down) {
+      APSInt AlignedVal = APSInt(Src & ~(Align - 1), Src.isUnsigned());
+      pushInteger(S, AlignedVal, Call->getType());
+    } else {
+      assert(*S.Ctx.classify(Call->getType()) == PT_Bool);
+      S.Stk.push<Boolean>((Src & (Align - 1)) == 0);
+    }
+    return true;
+  }
+
+  assert(FirstArgT == PT_Ptr);
+  const Pointer &Ptr = S.Stk.peek<Pointer>(CallSize);
+
+  unsigned PtrOffset = Ptr.getByteOffset();
+  PtrOffset = Ptr.getIndex();
+  CharUnits BaseAlignment =
+      S.getCtx().getDeclAlign(Ptr.getDeclDesc()->asValueDecl());
+  CharUnits PtrAlign =
+      BaseAlignment.alignmentAtOffset(CharUnits::fromQuantity(PtrOffset));
+
+  if (BuiltinOp == Builtin::BI__builtin_is_aligned) {
+    if (PtrAlign.getQuantity() >= Alignment) {
+      S.Stk.push<Boolean>(true);
+      return true;
+    }
+    // If the alignment is not known to be sufficient, some cases could still
+    // be aligned at run time. However, if the requested alignment is less or
+    // equal to the base alignment and the offset is not aligned, we know that
+    // the run-time value can never be aligned.
+    if (BaseAlignment.getQuantity() >= Alignment &&
+        PtrAlign.getQuantity() < Alignment) {
+      S.Stk.push<Boolean>(false);
+      return true;
+    }
+
+    S.FFDiag(Call->getArg(0), diag::note_constexpr_alignment_compute)
+        << Alignment;
+    return false;
+  }
+
+  assert(BuiltinOp == Builtin::BI__builtin_align_down ||
+         BuiltinOp == Builtin::BI__builtin_align_up);
+
+  // For align_up/align_down, we can return the same value if the alignment
+  // is known to be greater or equal to the requested value.
+  if (PtrAlign.getQuantity() >= Alignment) {
+    S.Stk.push<Pointer>(Ptr);
+    return true;
+  }
+
+  // The alignment could be greater than the minimum at run-time, so we cannot
+  // infer much about the resulting pointer value. One case is possible:
+  // For `_Alignas(32) char buf[N]; __builtin_align_down(&buf[idx], 32)` we
+  // can infer the correct index if the requested alignment is smaller than
+  // the base alignment so we can perform the computation on the offset.
+  if (BaseAlignment.getQuantity() >= Alignment) {
+    assert(Alignment.getBitWidth() <= 64 &&
+           "Cannot handle > 64-bit address-space");
+    uint64_t Alignment64 = Alignment.getZExtValue();
+    CharUnits NewOffset =
+        CharUnits::fromQuantity(BuiltinOp == Builtin::BI__builtin_align_down
+                                    ? llvm::alignDown(PtrOffset, Alignment64)
+                                    : llvm::alignTo(PtrOffset, Alignment64));
+
+    S.Stk.push<Pointer>(Ptr.atIndex(NewOffset.getQuantity()));
+    return true;
+  }
+
+  // Otherwise, we cannot constant-evaluate the result.
+  S.FFDiag(Call->getArg(0), diag::note_constexpr_alignment_adjust) << Alignment;
+  return false;
+}
+
 bool InterpretBuiltin(InterpState &S, CodePtr OpPC, const Function *F,
                       const CallExpr *Call) {
   const InterpFrame *Frame = S.Current;
@@ -1291,6 +1402,13 @@ bool InterpretBuiltin(InterpState &S, CodePtr OpPC, const Function *F,
       return false;
     break;
 
+  case Builtin::BI__builtin_is_aligned:
+  case Builtin::BI__builtin_align_up:
+  case Builtin::BI__builtin_align_down:
+    if (!interp__builtin_is_aligned_up_down(S, OpPC, Frame, F, Call))
+      return false;
+    break;
+
   default:
     S.FFDiag(S.Current->getLocation(OpPC),
              diag::note_invalid_subexpr_in_const_expr)
diff --git a/clang/test/AST/Interp/builtin-align-cxx.cpp b/clang/test/AST/Interp/builtin-align-cxx.cpp
new file mode 100644
index 0000000..62d73db
--- /dev/null
+++ b/clang/test/AST/Interp/builtin-align-cxx.cpp
@@ -0,0 +1,258 @@
+// C++-specific checks for the alignment builtins
+// RUN: %clang_cc1 -triple=x86_64-unknown-unknown -std=c++11 %s -fsyntax-only -verify=expected,both -fexperimental-new-constant-interpreter
+// RUN: %clang_cc1 -triple=x86_64-unknown-unknown -std=c++11 %s -fsyntax-only -verify=ref,both
+
+
+/// This is just a copy of the one from test/SemaCXX/ with some of the
+/// diagnostic output adapted.
+/// Also, align32array has an initializer now, which means it's not just
+/// a dummy pointer for us and we do actually have type information for it.
+/// In the future, we need to retain type information for dummy pointers as
+/// well, so here is a test that will break once we do that:
+namespace {
+  _Alignas(32) char heh[4];
+  static_assert(!__builtin_is_aligned(&heh[1], 4), ""); // expected-error {{failed}}
+}
+
+
+// Check that we don't crash when using dependent types in __builtin_align:
+template <typename a, a b>
+void *c(void *d) { // both-note{{candidate template ignored}}
+  return __builtin_align_down(d, b);
+}
+
+struct x {};
+x foo;
+void test(void *value) {
+  c<int, 16>(value);
+  c<struct x, foo>(value); // both-error{{no matching function for call to 'c'}}
+}
+
+template <typename T, long Alignment, long ArraySize = 16>
+void test_templated_arguments() {
+  T array[ArraySize];                                                           // both-error{{variable has incomplete type 'fwddecl'}}
+  static_assert(__is_same(decltype(__builtin_align_up(array, Alignment)), T *), // both-error{{requested alignment is not a power of 2}}
+                "return type should be the decayed array type");
+  static_assert(__is_same(decltype(__builtin_align_down(array, Alignment)), T *),
+                "return type should be the decayed array type");
+  static_assert(__is_same(decltype(__builtin_is_aligned(array, Alignment)), bool),
+                "return type should be bool");
+  T *x1 = __builtin_align_up(array, Alignment);
+  T *x2 = __builtin_align_down(array, Alignment);
+  bool x3 = __builtin_align_up(array, Alignment);
+}
+
+void test() {
+  test_templated_arguments<int, 32>(); // fine
+  test_templated_arguments<struct fwddecl, 16>();
+  // both-note@-1{{in instantiation of function template specialization 'test_templated_arguments<fwddecl, 16L, 16L>'}}
+  // both-note@-2{{forward declaration of 'fwddecl'}}
+  test_templated_arguments<int, 7>(); // invalid alignment value
+  // both-note@-1{{in instantiation of function template specialization 'test_templated_arguments<int, 7L, 16L>'}}
+}
+
+template <typename T, long ArraySize>
+void test_incorrect_alignment_without_instatiation(T value) {
+  int array[32];
+  static_assert(__is_same(decltype(__builtin_align_up(array, 31)), int *), // both-error{{requested alignment is not a power of 2}}
+                "return type should be the decayed array type");
+  static_assert(__is_same(decltype(__builtin_align_down(array, 7)), int *), // both-error{{requested alignment is not a power of 2}}
+                "return type should be the decayed array type");
+  static_assert(__is_same(decltype(__builtin_is_aligned(array, -1)), bool), // both-error{{requested alignment must be 1 or greater}}
+                "return type should be bool");
+  __builtin_align_up(array);       // both-error{{too few arguments to function call, expected 2, have 1}}
+  __builtin_align_up(array, 31);   // both-error{{requested alignment is not a power of 2}}
+  __builtin_align_down(array, 31); // both-error{{requested alignment is not a power of 2}}
+  __builtin_align_up(array, 31);   // both-error{{requested alignment is not a power of 2}}
+  __builtin_align_up(value, 31);   // This shouldn't want since the type is dependent
+  __builtin_align_up(value);       // Same here
+
+  __builtin_align_up(array, sizeof(sizeof(value)) - 1); // both-error{{requested alignment is not a power of 2}}
+  __builtin_align_up(array, value); // no diagnostic as the alignment is value dependent.
+  (void)__builtin_align_up(array, ArraySize); // The same above here
+}
+
+// The original fix for the issue above broke some legitimate code.
+// Here is a regression test:
+typedef __SIZE_TYPE__ size_t;
+void *allocate_impl(size_t size);
+template <typename T>
+T *allocate() {
+  constexpr size_t allocation_size =
+      __builtin_align_up(sizeof(T), sizeof(void *));
+  return static_cast<T *>(
+      __builtin_assume_aligned(allocate_impl(allocation_size), sizeof(void *)));
+}
+struct Foo {
+  int value;
+};
+void *test2() {
+  return allocate<struct Foo>();
+}
+
+// Check that pointers-to-members cannot be used:
+class MemPtr {
+public:
+  int data;
+  void func();
+  virtual void vfunc();
+};
+void test_member_ptr() {
+  __builtin_align_up(&MemPtr::data, 64);    // both-error{{operand of type 'int MemPtr::*' where arithmetic or pointer type is required}}
+  __builtin_align_down(&MemPtr::func, 64);  // both-error{{operand of type 'void (MemPtr::*)()' where arithmetic or pointer type is required}}
+  __builtin_is_aligned(&MemPtr::vfunc, 64); // both-error{{operand of type 'void (MemPtr::*)()' where arithmetic or pointer type is required}}
+}
+
+void test_references(Foo &i) {
+  // Check that the builtins look at the referenced type rather than the reference itself.
+  (void)__builtin_align_up(i, 64);                            // both-error{{operand of type 'Foo' where arithmetic or pointer type is required}}
+  (void)__builtin_align_up(static_cast<Foo &>(i), 64);        // both-error{{operand of type 'Foo' where arithmetic or pointer type is required}}
+  (void)__builtin_align_up(static_cast<const Foo &>(i), 64);  // both-error{{operand of type 'const Foo' where arithmetic or pointer type is required}}
+  (void)__builtin_align_up(static_cast<Foo &&>(i), 64);       // both-error{{operand of type 'Foo' where arithmetic or pointer type is required}}
+  (void)__builtin_align_up(static_cast<const Foo &&>(i), 64); // both-error{{operand of type 'const Foo' where arithmetic or pointer type is required}}
+  (void)__builtin_align_up(&i, 64);
+}
+
+// Check that constexpr wrapper functions can be constant-evaluated.
+template <typename T>
+constexpr bool wrap_is_aligned(T ptr, long align) {
+  return __builtin_is_aligned(ptr, align);
+  // both-note@-1{{requested alignment -3 is not a positive power of two}}
+  // both-note@-2{{requested alignment 19 is not a positive power of two}}
+  // both-note@-3{{requested alignment must be 128 or less for type 'char'; 4194304 is invalid}}
+}
+template <typename T>
+constexpr T wrap_align_up(T ptr, long align) {
+  return __builtin_align_up(ptr, align);
+  // both-note@-1{{requested alignment -2 is not a positive power of two}}
+  // both-note@-2{{requested alignment 18 is not a positive power of two}}
+  // both-note@-3{{requested alignment must be 2147483648 or less for type 'int'; 8589934592 is invalid}}
+  // both-error@-4{{operand of type 'bool' where arithmetic or pointer type is required}}
+}
+
+template <typename T>
+constexpr T wrap_align_down(T ptr, long align) {
+  return __builtin_align_down(ptr, align);
+  // both-note@-1{{requested alignment -1 is not a positive power of two}}
+  // both-note@-2{{requested alignment 17 is not a positive power of two}}
+  // both-note@-3{{requested alignment must be 32768 or less for type 'short'; 1048576 is invalid}}
+}
+
+constexpr int a1 = wrap_align_up(22, 32);
+static_assert(a1 == 32, "");
+constexpr int a2 = wrap_align_down(22, 16);
+static_assert(a2 == 16, "");
+constexpr bool a3 = wrap_is_aligned(22, 32);
+static_assert(!a3, "");
+static_assert(wrap_align_down(wrap_align_up(22, 16), 32) == 32, "");
+static_assert(wrap_is_aligned(wrap_align_down(wrap_align_up(22, 16), 32), 32), "");
+static_assert(!wrap_is_aligned(wrap_align_down(wrap_align_up(22, 16), 32), 64), "");
+
+constexpr long const_value(long l) { return l; }
+// Check some invalid values during constant-evaluation
+static_assert(wrap_align_down(1, const_value(-1)), ""); // both-error{{not an integral constant expression}}
+// both-note@-1{{in call to}}
+static_assert(wrap_align_up(1, const_value(-2)), ""); // both-error{{not an integral constant expression}}
+// both-note@-1{{in call to}}
+static_assert(wrap_is_aligned(1, const_value(-3)), ""); // both-error{{not an integral constant expression}}
+// both-note@-1{{in call to}}
+static_assert(wrap_align_down(1, const_value(17)), ""); // both-error{{not an integral constant expression}}
+// both-note@-1{{in call to}}
+static_assert(wrap_align_up(1, const_value(18)), ""); // both-error{{not an integral constant expression}}
+// both-note@-1{{in call to}}
+static_assert(wrap_is_aligned(1, const_value(19)), ""); // both-error{{not an integral constant expression}}
+// both-note@-1{{in call to}}
+
+// Check invalid values for smaller types:
+static_assert(wrap_align_down(static_cast<short>(1), const_value(1 << 20)), ""); // both-error{{not an integral constant expression}}
+// both-note@-1{{in call to }}
+// Check invalid boolean type
+static_assert(wrap_align_up(static_cast<int>(1), const_value(1ull << 33)), ""); // both-error{{not an integral constant expression}}
+// both-note@-1{{in call to}}
+static_assert(wrap_is_aligned(static_cast<char>(1), const_value(1 << 22)), ""); // both-error{{not an integral constant expression}}
+// both-note@-1{{in call to}}
+
+// Check invalid boolean type
+static_assert(wrap_align_up(static_cast<bool>(1), const_value(1 << 21)), ""); // both-error{{not an integral constant expression}}
+// both-note@-1{{in instantiation of function template specialization 'wrap_align_up<bool>' requested here}}
+
+// Check constant evaluation for pointers:
+_Alignas(32) char align32array[128] = {};
+static_assert(&align32array[0] == &align32array[0], "");
+// __builtin_align_up/down can be constant evaluated as a no-op for values
+// that are known to have greater alignment:
+static_assert(__builtin_align_up(&align32array[0], 32) == &align32array[0], "");
+static_assert(__builtin_align_up(&align32array[0], 4) == &align32array[0], "");
+static_assert(__builtin_align_down(&align32array[0], 4) == __builtin_align_up(&align32array[0], 8), "");
+// But it can not be evaluated if the alignment is greater than the minimum
+// known alignment, since in that case the value might be the same if it happens
+// to actually be aligned to 64 bytes at run time.
+static_assert(&align32array[0] == __builtin_align_up(&align32array[0], 64), ""); // both-error{{not an integral constant expression}}
+// both-note@-1{{cannot constant evaluate the result of adjusting alignment to 64}}
+static_assert(__builtin_align_up(&align32array[0], 64) == __builtin_align_up(&align32array[0], 64), ""); // both-error{{not an integral constant expression}}
+// both-note@-1{{cannot constant evaluate the result of adjusting alignment to 64}}
+
+// However, we can compute in case the requested alignment is less than the
+// base alignment:
+static_assert(__builtin_align_up(&align32array[0], 4) == &align32array[0], "");
+static_assert(__builtin_align_up(&align32array[1], 4) == &align32array[4], "");
+static_assert(__builtin_align_up(&align32array[2], 4) == &align32array[4], "");
+static_assert(__builtin_align_up(&align32array[3], 4) == &align32array[4], "");
+static_assert(__builtin_align_up(&align32array[4], 4) == &align32array[4], "");
+static_assert(__builtin_align_up(&align32array[5], 4) == &align32array[8], "");
+static_assert(__builtin_align_up(&align32array[6], 4) == &align32array[8], "");
+static_assert(__builtin_align_up(&align32array[7], 4) == &align32array[8], "");
+static_assert(__builtin_align_up(&align32array[8], 4) == &align32array[8], "");
+
+static_assert(__builtin_align_down(&align32array[0], 4) == &align32array[0], "");
+static_assert(__builtin_align_down(&align32array[1], 4) == &align32array[0], "");
+static_assert(__builtin_align_down(&align32array[2], 4) == &align32array[0], "");
+static_assert(__builtin_align_down(&align32array[3], 4) == &align32array[0], "");
+static_assert(__builtin_align_down(&align32array[4], 4) == &align32array[4], "");
+static_assert(__builtin_align_down(&align32array[5], 4) == &align32array[4], "");
+static_assert(__builtin_align_down(&align32array[6], 4) == &align32array[4], "");
+static_assert(__builtin_align_down(&align32array[7], 4) == &align32array[4], "");
+static_assert(__builtin_align_down(&align32array[8], 4) == &align32array[8], "");
+
+// Achieving the same thing using casts to uintptr_t is not allowed:
+static_assert((char *)((__UINTPTR_TYPE__)&align32array[7] & ~3) == &align32array[4], ""); // both-error{{not an integral constant expression}} \
+                                                                                          // expected-note {{cast that performs the conversions of a reinterpret_cast is not allowed in a constant expression}}
+
+static_assert(__builtin_align_down(&align32array[1], 4) == &align32array[0], "");
+static_assert(__builtin_align_down(&align32array[1], 64) == &align32array[0], ""); // both-error{{not an integral constant expression}}
+// both-note@-1{{cannot constant evaluate the result of adjusting alignment to 64}}
+
+// Add some checks for __builtin_is_aligned:
+static_assert(__builtin_is_aligned(&align32array[0], 32), "");
+static_assert(__builtin_is_aligned(&align32array[4], 4), "");
+// We cannot constant evaluate whether the array is aligned to > 32 since this
+// may well be true at run time.
+static_assert(!__builtin_is_aligned(&align32array[0], 64), ""); // both-error{{not an integral constant expression}}
+// both-note@-1{{cannot constant evaluate whether run-time alignment is at least 64}}
+
+// However, if the alignment being checked is less than the minimum alignment of
+// the base object we can check the low bits of the alignment:
+static_assert(__builtin_is_aligned(&align32array[0], 4), "");
+static_assert(!__builtin_is_aligned(&align32array[1], 4), "");
+static_assert(!__builtin_is_aligned(&align32array[2], 4), "");
+static_assert(!__builtin_is_aligned(&align32array[3], 4), "");
+static_assert(__builtin_is_aligned(&align32array[4], 4), "");
+
+// TODO: this should evaluate to true even though we can't evaluate the result
+//  of __builtin_align_up() to a concrete value
+static_assert(__builtin_is_aligned(__builtin_align_up(&align32array[0], 64), 64), ""); // both-error{{not an integral constant expression}}
+// both-note@-1{{cannot constant evaluate the result of adjusting alignment to 64}}
+
+// Check different source and alignment type widths are handled correctly.
+static_assert(!__builtin_is_aligned(static_cast<signed long>(7), static_cast<signed short>(4)), "");
+static_assert(!__builtin_is_aligned(static_cast<signed short>(7), static_cast<signed long>(4)), "");
+// Also check signed -- unsigned mismatch.
+static_assert(!__builtin_is_aligned(static_cast<signed long>(7), static_cast<signed long>(4)), "");
+static_assert(!__builtin_is_aligned(static_cast<unsigned long>(7), static_cast<unsigned long>(4)), "");
+static_assert(!__builtin_is_aligned(static_cast<signed long>(7), static_cast<unsigned long>(4)), "");
+static_assert(!__builtin_is_aligned(static_cast<unsigned long>(7), static_cast<signed long>(4)), "");
+static_assert(!__builtin_is_aligned(static_cast<signed long>(7), static_cast<unsigned short>(4)), "");
+static_assert(!__builtin_is_aligned(static_cast<unsigned short>(7), static_cast<signed long>(4)), "");
+
+// Check the diagnostic message
+_Alignas(void) char align_void_array[1]; // both-error {{invalid application of '_Alignas' to an incomplete type 'void'}}
-- 
cgit v1.1


From c309dc6d0759b23b570c563f611530ff1a49e1bd Mon Sep 17 00:00:00 2001
From: mahtohappy <Happy.Kumar@Windriver.com>
Date: Tue, 16 Apr 2024 17:48:45 +0530
Subject: [Clang][Sema] placement new initializes typedef array with correct
 size (#83124)

When in-place new-ing a local variable of an array of trivial type, the
generated code calls 'memset' with the correct size of the array,
earlier it was generating size (squared of the typedef array + size).

The cause: `typedef TYPE TArray[8]; TArray x;` The type of declarator is
Tarray[8] and in `SemaExprCXX.cpp::BuildCXXNew` we check if it's of
typedef and of constant size then we get the original type and it works
fine for non-dependent cases.
But in case of template we do `TreeTransform.h:TransformCXXNEWExpr` and
there we again check the allocated type which is TArray[8] and it stays
that way, so ArraySize=(Tarray[8] type, alloc Tarray[8*type]) so the
squared size allocation.

ArraySize gets calculated earlier in `TreeTransform.h` so that
`if(!ArraySize)` condition was failing.
fix: I changed that condition to `if(ArraySize)`.


Fixes #41441
---
 clang/docs/ReleaseNotes.rst                          |  2 ++
 clang/lib/Sema/TreeTransform.h                       | 14 +++++++++++++-
 .../test/SemaCXX/instantiate-new-placement-size.cpp  | 20 ++++++++++++++++++++
 3 files changed, 35 insertions(+), 1 deletion(-)
 create mode 100644 clang/test/SemaCXX/instantiate-new-placement-size.cpp

(limited to 'clang')

diff --git a/clang/docs/ReleaseNotes.rst b/clang/docs/ReleaseNotes.rst
index 76701dc..255d2cc0 100644
--- a/clang/docs/ReleaseNotes.rst
+++ b/clang/docs/ReleaseNotes.rst
@@ -539,6 +539,8 @@ Bug Fixes to C++ Support
   Fixes (#GH70604), (#GH79754), (#GH84163), (#GH84425), (#GH86054), (#GH86398), and (#GH86399).
 - Fix a crash when deducing ``auto`` from an invalid dereference (#GH88329).
 - Fix a crash in requires expression with templated base class member function. Fixes (#GH84020).
+- placement new initializes typedef array with correct size
+  (`#GH41441 <https://github.com/llvm/llvm-project/issues/41441>`_)
 
 Bug Fixes to AST Handling
 ^^^^^^^^^^^^^^^^^^^^^^^^^
diff --git a/clang/lib/Sema/TreeTransform.h b/clang/lib/Sema/TreeTransform.h
index 8c96134..9d15f3e 100644
--- a/clang/lib/Sema/TreeTransform.h
+++ b/clang/lib/Sema/TreeTransform.h
@@ -12802,6 +12802,19 @@ TreeTransform<Derived>::TransformCXXNewExpr(CXXNewExpr *E) {
     ArraySize = NewArraySize.get();
   }
 
+  // Per C++0x [expr.new]p5, the type being constructed may be a
+  // typedef of an array type.
+  QualType AllocType = AllocTypeInfo->getType();
+  if (ArraySize) {
+    if (const ConstantArrayType *Array =
+            SemaRef.Context.getAsConstantArrayType(AllocType)) {
+      ArraySize = IntegerLiteral::Create(SemaRef.Context, Array->getSize(),
+                                         SemaRef.Context.getSizeType(),
+                                         E->getBeginLoc());
+      AllocType = Array->getElementType();
+    }
+  }
+
   // Transform the placement arguments (if any).
   bool ArgumentChanged = false;
   SmallVector<Expr*, 8> PlacementArgs;
@@ -12863,7 +12876,6 @@ TreeTransform<Derived>::TransformCXXNewExpr(CXXNewExpr *E) {
     return E;
   }
 
-  QualType AllocType = AllocTypeInfo->getType();
   if (!ArraySize) {
     // If no array size was specified, but the new expression was
     // instantiated with an array type (e.g., "new T" where T is
diff --git a/clang/test/SemaCXX/instantiate-new-placement-size.cpp b/clang/test/SemaCXX/instantiate-new-placement-size.cpp
new file mode 100644
index 0000000..7a29d3d
--- /dev/null
+++ b/clang/test/SemaCXX/instantiate-new-placement-size.cpp
@@ -0,0 +1,20 @@
+// RUN: %clang -S -fno-discard-value-names -emit-llvm -o - %s | FileCheck %s
+// Issue no: 41441
+#include <new>
+
+// CHECK: call void @llvm.memset.p0.i64(ptr align 1 %x, i8 0, i64 8, i1 false)
+// CHECK: call void @llvm.memset.p0.i64(ptr align 16 %x, i8 0, i64 32, i1 false)
+template <typename TYPE>
+void f()
+{
+    typedef TYPE TArray[8];
+
+    TArray x;
+    new(&x) TArray();
+}
+
+int main()
+{
+    f<char>();
+    f<int>();
+}
-- 
cgit v1.1


From e272c37934a06cd80b9b072afc09afae5fd8c218 Mon Sep 17 00:00:00 2001
From: Nico Weber <thakis@chromium.org>
Date: Tue, 16 Apr 2024 08:31:35 -0400
Subject: clang; Try to get windows-seh-async-verify.cpp to pass on mac

On macOS, file paths start with /Users/..., which clang-cl interptrets
as the /U switch followed by a preprocessor macro name to undefine.

Put the filename after `--` to prevent this. For consistency, move %s
to the end of the regular `clang` lines (where this isn't needed) as
well.
---
 clang/test/Driver/windows-seh-async-verify.cpp | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

(limited to 'clang')

diff --git a/clang/test/Driver/windows-seh-async-verify.cpp b/clang/test/Driver/windows-seh-async-verify.cpp
index 5fda6a7..ace93cf 100644
--- a/clang/test/Driver/windows-seh-async-verify.cpp
+++ b/clang/test/Driver/windows-seh-async-verify.cpp
@@ -1,7 +1,7 @@
-// RUN: %clang --target=x86_64-pc-windows -fasync-exceptions -fsyntax-only %s -### 2>&1 | FileCheck %s
-// RUN: %clang_cl --target=x86_64-pc-windows /EHa -fsyntax-only %s -### 2>&1 | FileCheck %s
-// RUN: %clang --target=x86_64-pc-windows-gnu -fasync-exceptions -fsyntax-only %s -### 2>&1 | FileCheck %s --check-prefixes=GNU-ALL,GNU
-// RUN: %clang_cl --target=x86_64-pc-windows-gnu /EHa -fsyntax-only %s -### 2>&1 | FileCheck %s --check-prefixes=GNU-ALL,CL-GNU
+// RUN: %clang --target=x86_64-pc-windows -fasync-exceptions -fsyntax-only -### %s 2>&1 | FileCheck %s
+// RUN: %clang_cl --target=x86_64-pc-windows /EHa -fsyntax-only -### -- %s 2>&1 | FileCheck %s
+// RUN: %clang --target=x86_64-pc-windows-gnu -fasync-exceptions -fsyntax-only -### %s 2>&1 | FileCheck %s --check-prefixes=GNU-ALL,GNU
+// RUN: %clang_cl --target=x86_64-pc-windows-gnu /EHa -fsyntax-only -### -- %s 2>&1 | FileCheck %s --check-prefixes=GNU-ALL,CL-GNU
 
 // CHECK-NOT: warning
 // GNU: warning: argument unused during compilation: '-fasync-exceptions' [-Wunused-command-line-argument]
-- 
cgit v1.1


From f69ded0d9965a6b2b76ce12db876c70f249d96d1 Mon Sep 17 00:00:00 2001
From: Vlad Serebrennikov <serebrennikov.vladislav@gmail.com>
Date: Tue, 16 Apr 2024 16:36:53 +0400
Subject: [clang] Introduce `SemaOpenMP` (#88642)

This patch moves OpenMP-related entities out of `Sema` to a newly
created `SemaOpenMP` class. This is a part of the effort to split `Sema`
up, and follows the recent example of CUDA, OpenACC, SYCL, HLSL.
Additional context can be found in
https://github.com/llvm/llvm-project/pull/82217,
https://github.com/llvm/llvm-project/pull/84184,
https://github.com/llvm/llvm-project/pull/87634.
---
 clang/include/clang/Parse/Parser.h             |   15 +-
 clang/include/clang/Sema/Sema.h                | 1419 +-------
 clang/include/clang/Sema/SemaOpenMP.h          | 1447 ++++++++
 clang/lib/Parse/ParseDecl.cpp                  |    3 +-
 clang/lib/Parse/ParseExpr.cpp                  |    5 +-
 clang/lib/Parse/ParseOpenMP.cpp                |  240 +-
 clang/lib/Parse/ParseStmt.cpp                  |    3 +-
 clang/lib/Sema/Sema.cpp                        |   25 +-
 clang/lib/Sema/SemaDecl.cpp                    |   32 +-
 clang/lib/Sema/SemaDeclCXX.cpp                 |    9 +-
 clang/lib/Sema/SemaExpr.cpp                    |  610 +---
 clang/lib/Sema/SemaExprMember.cpp              |    9 +-
 clang/lib/Sema/SemaLambda.cpp                  |    3 +-
 clang/lib/Sema/SemaOpenMP.cpp                  | 4333 ++++++++++++++----------
 clang/lib/Sema/SemaStmt.cpp                    |    6 +-
 clang/lib/Sema/SemaTemplateInstantiateDecl.cpp |   60 +-
 clang/lib/Sema/SemaType.cpp                    |    3 +-
 clang/lib/Sema/TreeTransform.h                 |  684 ++--
 18 files changed, 4565 insertions(+), 4341 deletions(-)
 create mode 100644 clang/include/clang/Sema/SemaOpenMP.h

(limited to 'clang')

diff --git a/clang/include/clang/Parse/Parser.h b/clang/include/clang/Parse/Parser.h
index 5950dd7..23b2681 100644
--- a/clang/include/clang/Parse/Parser.h
+++ b/clang/include/clang/Parse/Parser.h
@@ -18,6 +18,7 @@
 #include "clang/Lex/CodeCompletionHandler.h"
 #include "clang/Lex/Preprocessor.h"
 #include "clang/Sema/Sema.h"
+#include "clang/Sema/SemaOpenMP.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/Frontend/OpenMP/OMPContext.h"
 #include "llvm/Support/SaveAndRestore.h"
@@ -2537,7 +2538,7 @@ private:
   /// Returns true for declaration, false for expression.
   bool isForInitDeclaration() {
     if (getLangOpts().OpenMP)
-      Actions.startOpenMPLoop();
+      Actions.OpenMP().startOpenMPLoop();
     if (getLangOpts().CPlusPlus)
       return Tok.is(tok::kw_using) ||
              isCXXSimpleDeclaration(/*AllowForRangeDecl=*/true);
@@ -3396,7 +3397,7 @@ private:
                           SourceLocation Loc);
 
   /// Parse clauses for '#pragma omp [begin] declare target'.
-  void ParseOMPDeclareTargetClauses(Sema::DeclareTargetContextInfo &DTCI);
+  void ParseOMPDeclareTargetClauses(SemaOpenMP::DeclareTargetContextInfo &DTCI);
 
   /// Parse '#pragma omp end declare target'.
   void ParseOMPEndDeclareTargetDirective(OpenMPDirectiveKind BeginDKind,
@@ -3486,7 +3487,7 @@ private:
   /// Parses indirect clause
   /// \param ParseOnly true to skip the clause's semantic actions and return
   // false;
-  bool ParseOpenMPIndirectClause(Sema::DeclareTargetContextInfo &DTCI,
+  bool ParseOpenMPIndirectClause(SemaOpenMP::DeclareTargetContextInfo &DTCI,
                                  bool ParseOnly);
   /// Parses clause with a single expression and an additional argument
   /// of a kind \a Kind.
@@ -3556,12 +3557,12 @@ public:
 
   /// Parses a reserved locator like 'omp_all_memory'.
   bool ParseOpenMPReservedLocator(OpenMPClauseKind Kind,
-                                  Sema::OpenMPVarListDataTy &Data,
+                                  SemaOpenMP::OpenMPVarListDataTy &Data,
                                   const LangOptions &LangOpts);
   /// Parses clauses with list.
   bool ParseOpenMPVarList(OpenMPDirectiveKind DKind, OpenMPClauseKind Kind,
                           SmallVectorImpl<Expr *> &Vars,
-                          Sema::OpenMPVarListDataTy &Data);
+                          SemaOpenMP::OpenMPVarListDataTy &Data);
   bool ParseUnqualifiedId(CXXScopeSpec &SS, ParsedType ObjectType,
                           bool ObjectHadErrors, bool EnteringContext,
                           bool AllowDestructorName, bool AllowConstructorName,
@@ -3569,11 +3570,11 @@ public:
                           SourceLocation *TemplateKWLoc, UnqualifiedId &Result);
 
   /// Parses the mapper modifier in map, to, and from clauses.
-  bool parseMapperModifier(Sema::OpenMPVarListDataTy &Data);
+  bool parseMapperModifier(SemaOpenMP::OpenMPVarListDataTy &Data);
   /// Parses map-type-modifiers in map clause.
   /// map([ [map-type-modifier[,] [map-type-modifier[,] ...] map-type : ] list)
   /// where, map-type-modifier ::= always | close | mapper(mapper-identifier)
-  bool parseMapTypeModifiers(Sema::OpenMPVarListDataTy &Data);
+  bool parseMapTypeModifiers(SemaOpenMP::OpenMPVarListDataTy &Data);
 
   //===--------------------------------------------------------------------===//
   // OpenACC Parsing.
diff --git a/clang/include/clang/Sema/Sema.h b/clang/include/clang/Sema/Sema.h
index d93ac78..a5fe83a 100644
--- a/clang/include/clang/Sema/Sema.h
+++ b/clang/include/clang/Sema/Sema.h
@@ -26,14 +26,12 @@
 #include "clang/AST/ExprCXX.h"
 #include "clang/AST/ExprConcepts.h"
 #include "clang/AST/ExprObjC.h"
-#include "clang/AST/ExprOpenMP.h"
 #include "clang/AST/ExternalASTSource.h"
 #include "clang/AST/LocInfoType.h"
 #include "clang/AST/MangleNumberingContext.h"
 #include "clang/AST/NSAPI.h"
 #include "clang/AST/PrettyPrinter.h"
 #include "clang/AST/StmtCXX.h"
-#include "clang/AST/StmtOpenMP.h"
 #include "clang/AST/TypeLoc.h"
 #include "clang/AST/TypeOrdering.h"
 #include "clang/Basic/BitmaskEnum.h"
@@ -43,7 +41,6 @@
 #include "clang/Basic/ExpressionTraits.h"
 #include "clang/Basic/Module.h"
 #include "clang/Basic/OpenCLOptions.h"
-#include "clang/Basic/OpenMPKinds.h"
 #include "clang/Basic/PragmaKinds.h"
 #include "clang/Basic/Specifiers.h"
 #include "clang/Basic/TemplateKinds.h"
@@ -68,7 +65,6 @@
 #include "llvm/ADT/SmallSet.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/ADT/TinyPtrVector.h"
-#include "llvm/Frontend/OpenMP/OMPConstants.h"
 #include <deque>
 #include <memory>
 #include <optional>
@@ -167,12 +163,6 @@ class ObjCMessageExpr;
 class ObjCMethodDecl;
 class ObjCPropertyDecl;
 class ObjCProtocolDecl;
-class OMPThreadPrivateDecl;
-class OMPRequiresDecl;
-class OMPDeclareReductionDecl;
-class OMPDeclareSimdDecl;
-class OMPClause;
-struct OMPVarListLocTy;
 struct OverloadCandidate;
 enum class OverloadCandidateParamOrder : char;
 enum OverloadCandidateRewriteKind : unsigned;
@@ -187,6 +177,7 @@ class QualType;
 class SemaCUDA;
 class SemaHLSL;
 class SemaOpenACC;
+class SemaOpenMP;
 class SemaSYCL;
 class StandardConversionSequence;
 class Stmt;
@@ -480,7 +471,6 @@ class Sema final : public SemaBase {
   // 35. Code Completion (SemaCodeComplete.cpp)
   // 36. FixIt Helpers (SemaFixItUtils.cpp)
   // 37. Name Lookup for RISC-V Vector Intrinsic (SemaRISCVVectorLookup.cpp)
-  // 38. OpenMP Directives and Clauses (SemaOpenMP.cpp)
 
   /// \name Semantic Analysis
   /// Implementations are in Sema.cpp
@@ -997,6 +987,11 @@ public:
     return *OpenACCPtr;
   }
 
+  SemaOpenMP &OpenMP() {
+    assert(OpenMPPtr && "SemaOpenMP is dead");
+    return *OpenMPPtr;
+  }
+
   SemaSYCL &SYCL() {
     assert(SYCLPtr);
     return *SYCLPtr;
@@ -1035,6 +1030,7 @@ private:
   std::unique_ptr<SemaCUDA> CUDAPtr;
   std::unique_ptr<SemaHLSL> HLSLPtr;
   std::unique_ptr<SemaOpenACC> OpenACCPtr;
+  std::unique_ptr<SemaOpenMP> OpenMPPtr;
   std::unique_ptr<SemaSYCL> SYCLPtr;
 
   ///@}
@@ -3443,14 +3439,6 @@ public:
 
   sema::LambdaScopeInfo *RebuildLambdaScopeInfo(CXXMethodDecl *CallOperator);
 
-  /// The declarator \p D defines a function in the scope \p S which is nested
-  /// in an `omp begin/end declare variant` scope. In this method we create a
-  /// declaration for \p D and rename \p D according to the OpenMP context
-  /// selector of the surrounding scope. Return all base functions in \p Bases.
-  void ActOnStartOfFunctionDefinitionInOpenMPDeclareVariantScope(
-      Scope *S, Declarator &D, MultiTemplateParamsArg TemplateParameterLists,
-      SmallVectorImpl<FunctionDecl *> &Bases);
-
   // Heuristically tells if the function is `get_return_object` member of a
   // coroutine promise_type by matching the function name.
   static bool CanBeGetReturnObject(const FunctionDecl *FD);
@@ -5533,32 +5521,6 @@ public:
                                               Expr *ColumnIdx,
                                               SourceLocation RBLoc);
 
-  ExprResult ActOnOMPArraySectionExpr(Expr *Base, SourceLocation LBLoc,
-                                      Expr *LowerBound,
-                                      SourceLocation ColonLocFirst,
-                                      SourceLocation ColonLocSecond,
-                                      Expr *Length, Expr *Stride,
-                                      SourceLocation RBLoc);
-  ExprResult ActOnOMPArrayShapingExpr(Expr *Base, SourceLocation LParenLoc,
-                                      SourceLocation RParenLoc,
-                                      ArrayRef<Expr *> Dims,
-                                      ArrayRef<SourceRange> Brackets);
-
-  /// Data structure for iterator expression.
-  struct OMPIteratorData {
-    IdentifierInfo *DeclIdent = nullptr;
-    SourceLocation DeclIdentLoc;
-    ParsedType Type;
-    OMPIteratorExpr::IteratorRange Range;
-    SourceLocation AssignLoc;
-    SourceLocation ColonLoc;
-    SourceLocation SecColonLoc;
-  };
-
-  ExprResult ActOnOMPIteratorExpr(Scope *S, SourceLocation IteratorKwLoc,
-                                  SourceLocation LLoc, SourceLocation RLoc,
-                                  ArrayRef<OMPIteratorData> Data);
-
   bool ConvertArgumentsForCall(CallExpr *Call, Expr *Fn, FunctionDecl *FDecl,
                                const FunctionProtoType *Proto,
                                ArrayRef<Expr *> Args, SourceLocation RParenLoc,
@@ -12863,1373 +12825,6 @@ private:
   std::unique_ptr<sema::RISCVIntrinsicManager> RVIntrinsicManager;
 
   ///@}
-
-  //
-  //
-  // -------------------------------------------------------------------------
-  //
-  //
-
-  /// \name OpenMP Directives and Clauses
-  /// Implementations are in SemaOpenMP.cpp
-  ///@{
-
-public:
-  /// Creates a SemaDiagnosticBuilder that emits the diagnostic if the current
-  /// context is "used as device code".
-  ///
-  /// - If CurContext is a `declare target` function or it is known that the
-  /// function is emitted for the device, emits the diagnostics immediately.
-  /// - If CurContext is a non-`declare target` function and we are compiling
-  ///   for the device, creates a diagnostic which is emitted if and when we
-  ///   realize that the function will be codegen'ed.
-  ///
-  /// Example usage:
-  ///
-  ///  // Variable-length arrays are not allowed in NVPTX device code.
-  ///  if (diagIfOpenMPDeviceCode(Loc, diag::err_vla_unsupported))
-  ///    return ExprError();
-  ///  // Otherwise, continue parsing as normal.
-  SemaDiagnosticBuilder diagIfOpenMPDeviceCode(SourceLocation Loc,
-                                               unsigned DiagID,
-                                               const FunctionDecl *FD);
-
-  /// Creates a SemaDiagnosticBuilder that emits the diagnostic if the current
-  /// context is "used as host code".
-  ///
-  /// - If CurContext is a `declare target` function or it is known that the
-  /// function is emitted for the host, emits the diagnostics immediately.
-  /// - If CurContext is a non-host function, just ignore it.
-  ///
-  /// Example usage:
-  ///
-  ///  // Variable-length arrays are not allowed in NVPTX device code.
-  ///  if (diagIfOpenMPHostode(Loc, diag::err_vla_unsupported))
-  ///    return ExprError();
-  ///  // Otherwise, continue parsing as normal.
-  SemaDiagnosticBuilder diagIfOpenMPHostCode(SourceLocation Loc,
-                                             unsigned DiagID,
-                                             const FunctionDecl *FD);
-
-  /// Register \p D as specialization of all base functions in \p Bases in the
-  /// current `omp begin/end declare variant` scope.
-  void ActOnFinishedFunctionDefinitionInOpenMPDeclareVariantScope(
-      Decl *D, SmallVectorImpl<FunctionDecl *> &Bases);
-
-  /// Act on \p D, a function definition inside of an `omp [begin/end] assumes`.
-  void ActOnFinishedFunctionDefinitionInOpenMPAssumeScope(Decl *D);
-
-  /// Can we exit an OpenMP declare variant scope at the moment.
-  bool isInOpenMPDeclareVariantScope() const {
-    return !OMPDeclareVariantScopes.empty();
-  }
-
-  ExprResult
-  VerifyPositiveIntegerConstantInClause(Expr *Op, OpenMPClauseKind CKind,
-                                        bool StrictlyPositive = true,
-                                        bool SuppressExprDiags = false);
-
-  /// Given the potential call expression \p Call, determine if there is a
-  /// specialization via the OpenMP declare variant mechanism available. If
-  /// there is, return the specialized call expression, otherwise return the
-  /// original \p Call.
-  ExprResult ActOnOpenMPCall(ExprResult Call, Scope *Scope,
-                             SourceLocation LParenLoc, MultiExprArg ArgExprs,
-                             SourceLocation RParenLoc, Expr *ExecConfig);
-
-  /// Handle a `omp begin declare variant`.
-  void ActOnOpenMPBeginDeclareVariant(SourceLocation Loc, OMPTraitInfo &TI);
-
-  /// Handle a `omp end declare variant`.
-  void ActOnOpenMPEndDeclareVariant();
-
-  /// Function tries to capture lambda's captured variables in the OpenMP region
-  /// before the original lambda is captured.
-  void tryCaptureOpenMPLambdas(ValueDecl *V);
-
-  /// Return true if the provided declaration \a VD should be captured by
-  /// reference.
-  /// \param Level Relative level of nested OpenMP construct for that the check
-  /// is performed.
-  /// \param OpenMPCaptureLevel Capture level within an OpenMP construct.
-  bool isOpenMPCapturedByRef(const ValueDecl *D, unsigned Level,
-                             unsigned OpenMPCaptureLevel) const;
-
-  /// Check if the specified variable is used in one of the private
-  /// clauses (private, firstprivate, lastprivate, reduction etc.) in OpenMP
-  /// constructs.
-  VarDecl *isOpenMPCapturedDecl(ValueDecl *D, bool CheckScopeInfo = false,
-                                unsigned StopAt = 0);
-
-  /// The member expression(this->fd) needs to be rebuilt in the template
-  /// instantiation to generate private copy for OpenMP when default
-  /// clause is used. The function will return true if default
-  /// cluse is used.
-  bool isOpenMPRebuildMemberExpr(ValueDecl *D);
-
-  ExprResult getOpenMPCapturedExpr(VarDecl *Capture, ExprValueKind VK,
-                                   ExprObjectKind OK, SourceLocation Loc);
-
-  /// If the current region is a loop-based region, mark the start of the loop
-  /// construct.
-  void startOpenMPLoop();
-
-  /// If the current region is a range loop-based region, mark the start of the
-  /// loop construct.
-  void startOpenMPCXXRangeFor();
-
-  /// Check if the specified variable is used in 'private' clause.
-  /// \param Level Relative level of nested OpenMP construct for that the check
-  /// is performed.
-  OpenMPClauseKind isOpenMPPrivateDecl(ValueDecl *D, unsigned Level,
-                                       unsigned CapLevel) const;
-
-  /// Sets OpenMP capture kind (OMPC_private, OMPC_firstprivate, OMPC_map etc.)
-  /// for \p FD based on DSA for the provided corresponding captured declaration
-  /// \p D.
-  void setOpenMPCaptureKind(FieldDecl *FD, const ValueDecl *D, unsigned Level);
-
-  /// Check if the specified variable is captured  by 'target' directive.
-  /// \param Level Relative level of nested OpenMP construct for that the check
-  /// is performed.
-  bool isOpenMPTargetCapturedDecl(const ValueDecl *D, unsigned Level,
-                                  unsigned CaptureLevel) const;
-
-  /// Check if the specified global variable must be captured  by outer capture
-  /// regions.
-  /// \param Level Relative level of nested OpenMP construct for that
-  /// the check is performed.
-  bool isOpenMPGlobalCapturedDecl(ValueDecl *D, unsigned Level,
-                                  unsigned CaptureLevel) const;
-
-  ExprResult PerformOpenMPImplicitIntegerConversion(SourceLocation OpLoc,
-                                                    Expr *Op);
-  /// Called on start of new data sharing attribute block.
-  void StartOpenMPDSABlock(OpenMPDirectiveKind K,
-                           const DeclarationNameInfo &DirName, Scope *CurScope,
-                           SourceLocation Loc);
-  /// Start analysis of clauses.
-  void StartOpenMPClause(OpenMPClauseKind K);
-  /// End analysis of clauses.
-  void EndOpenMPClause();
-  /// Called on end of data sharing attribute block.
-  void EndOpenMPDSABlock(Stmt *CurDirective);
-
-  /// Check if the current region is an OpenMP loop region and if it is,
-  /// mark loop control variable, used in \p Init for loop initialization, as
-  /// private by default.
-  /// \param Init First part of the for loop.
-  void ActOnOpenMPLoopInitialization(SourceLocation ForLoc, Stmt *Init);
-
-  /// Called on well-formed '\#pragma omp metadirective' after parsing
-  /// of the  associated statement.
-  StmtResult ActOnOpenMPMetaDirective(ArrayRef<OMPClause *> Clauses,
-                                      Stmt *AStmt, SourceLocation StartLoc,
-                                      SourceLocation EndLoc);
-
-  // OpenMP directives and clauses.
-  /// Called on correct id-expression from the '#pragma omp
-  /// threadprivate'.
-  ExprResult ActOnOpenMPIdExpression(Scope *CurScope, CXXScopeSpec &ScopeSpec,
-                                     const DeclarationNameInfo &Id,
-                                     OpenMPDirectiveKind Kind);
-  /// Called on well-formed '#pragma omp threadprivate'.
-  DeclGroupPtrTy ActOnOpenMPThreadprivateDirective(SourceLocation Loc,
-                                                   ArrayRef<Expr *> VarList);
-  /// Builds a new OpenMPThreadPrivateDecl and checks its correctness.
-  OMPThreadPrivateDecl *CheckOMPThreadPrivateDecl(SourceLocation Loc,
-                                                  ArrayRef<Expr *> VarList);
-  /// Called on well-formed '#pragma omp allocate'.
-  DeclGroupPtrTy ActOnOpenMPAllocateDirective(SourceLocation Loc,
-                                              ArrayRef<Expr *> VarList,
-                                              ArrayRef<OMPClause *> Clauses,
-                                              DeclContext *Owner = nullptr);
-
-  /// Called on well-formed '#pragma omp [begin] assume[s]'.
-  void ActOnOpenMPAssumesDirective(SourceLocation Loc,
-                                   OpenMPDirectiveKind DKind,
-                                   ArrayRef<std::string> Assumptions,
-                                   bool SkippedClauses);
-
-  /// Check if there is an active global `omp begin assumes` directive.
-  bool isInOpenMPAssumeScope() const { return !OMPAssumeScoped.empty(); }
-
-  /// Check if there is an active global `omp assumes` directive.
-  bool hasGlobalOpenMPAssumes() const { return !OMPAssumeGlobal.empty(); }
-
-  /// Called on well-formed '#pragma omp end assumes'.
-  void ActOnOpenMPEndAssumesDirective();
-
-  /// Called on well-formed '#pragma omp requires'.
-  DeclGroupPtrTy ActOnOpenMPRequiresDirective(SourceLocation Loc,
-                                              ArrayRef<OMPClause *> ClauseList);
-  /// Check restrictions on Requires directive
-  OMPRequiresDecl *CheckOMPRequiresDecl(SourceLocation Loc,
-                                        ArrayRef<OMPClause *> Clauses);
-  /// Check if the specified type is allowed to be used in 'omp declare
-  /// reduction' construct.
-  QualType ActOnOpenMPDeclareReductionType(SourceLocation TyLoc,
-                                           TypeResult ParsedType);
-  /// Called on start of '#pragma omp declare reduction'.
-  DeclGroupPtrTy ActOnOpenMPDeclareReductionDirectiveStart(
-      Scope *S, DeclContext *DC, DeclarationName Name,
-      ArrayRef<std::pair<QualType, SourceLocation>> ReductionTypes,
-      AccessSpecifier AS, Decl *PrevDeclInScope = nullptr);
-  /// Initialize declare reduction construct initializer.
-  void ActOnOpenMPDeclareReductionCombinerStart(Scope *S, Decl *D);
-  /// Finish current declare reduction construct initializer.
-  void ActOnOpenMPDeclareReductionCombinerEnd(Decl *D, Expr *Combiner);
-  /// Initialize declare reduction construct initializer.
-  /// \return omp_priv variable.
-  VarDecl *ActOnOpenMPDeclareReductionInitializerStart(Scope *S, Decl *D);
-  /// Finish current declare reduction construct initializer.
-  void ActOnOpenMPDeclareReductionInitializerEnd(Decl *D, Expr *Initializer,
-                                                 VarDecl *OmpPrivParm);
-  /// Called at the end of '#pragma omp declare reduction'.
-  DeclGroupPtrTy ActOnOpenMPDeclareReductionDirectiveEnd(
-      Scope *S, DeclGroupPtrTy DeclReductions, bool IsValid);
-
-  /// Check variable declaration in 'omp declare mapper' construct.
-  TypeResult ActOnOpenMPDeclareMapperVarDecl(Scope *S, Declarator &D);
-  /// Check if the specified type is allowed to be used in 'omp declare
-  /// mapper' construct.
-  QualType ActOnOpenMPDeclareMapperType(SourceLocation TyLoc,
-                                        TypeResult ParsedType);
-  /// Called on start of '#pragma omp declare mapper'.
-  DeclGroupPtrTy ActOnOpenMPDeclareMapperDirective(
-      Scope *S, DeclContext *DC, DeclarationName Name, QualType MapperType,
-      SourceLocation StartLoc, DeclarationName VN, AccessSpecifier AS,
-      Expr *MapperVarRef, ArrayRef<OMPClause *> Clauses,
-      Decl *PrevDeclInScope = nullptr);
-  /// Build the mapper variable of '#pragma omp declare mapper'.
-  ExprResult ActOnOpenMPDeclareMapperDirectiveVarDecl(Scope *S,
-                                                      QualType MapperType,
-                                                      SourceLocation StartLoc,
-                                                      DeclarationName VN);
-  void ActOnOpenMPIteratorVarDecl(VarDecl *VD);
-  bool isOpenMPDeclareMapperVarDeclAllowed(const VarDecl *VD) const;
-  const ValueDecl *getOpenMPDeclareMapperVarName() const;
-
-  struct DeclareTargetContextInfo {
-    struct MapInfo {
-      OMPDeclareTargetDeclAttr::MapTypeTy MT;
-      SourceLocation Loc;
-    };
-    /// Explicitly listed variables and functions in a 'to' or 'link' clause.
-    llvm::DenseMap<NamedDecl *, MapInfo> ExplicitlyMapped;
-
-    /// The 'device_type' as parsed from the clause.
-    OMPDeclareTargetDeclAttr::DevTypeTy DT = OMPDeclareTargetDeclAttr::DT_Any;
-
-    /// The directive kind, `begin declare target` or `declare target`.
-    OpenMPDirectiveKind Kind;
-
-    /// The directive with indirect clause.
-    std::optional<Expr *> Indirect;
-
-    /// The directive location.
-    SourceLocation Loc;
-
-    DeclareTargetContextInfo(OpenMPDirectiveKind Kind, SourceLocation Loc)
-        : Kind(Kind), Loc(Loc) {}
-  };
-
-  /// Called on the start of target region i.e. '#pragma omp declare target'.
-  bool ActOnStartOpenMPDeclareTargetContext(DeclareTargetContextInfo &DTCI);
-
-  /// Called at the end of target region i.e. '#pragma omp end declare target'.
-  const DeclareTargetContextInfo ActOnOpenMPEndDeclareTargetDirective();
-
-  /// Called once a target context is completed, that can be when a
-  /// '#pragma omp end declare target' was encountered or when a
-  /// '#pragma omp declare target' without declaration-definition-seq was
-  /// encountered.
-  void ActOnFinishedOpenMPDeclareTargetContext(DeclareTargetContextInfo &DTCI);
-
-  /// Report unterminated 'omp declare target' or 'omp begin declare target' at
-  /// the end of a compilation unit.
-  void DiagnoseUnterminatedOpenMPDeclareTarget();
-
-  /// Searches for the provided declaration name for OpenMP declare target
-  /// directive.
-  NamedDecl *lookupOpenMPDeclareTargetName(Scope *CurScope,
-                                           CXXScopeSpec &ScopeSpec,
-                                           const DeclarationNameInfo &Id);
-
-  /// Called on correct id-expression from the '#pragma omp declare target'.
-  void ActOnOpenMPDeclareTargetName(NamedDecl *ND, SourceLocation Loc,
-                                    OMPDeclareTargetDeclAttr::MapTypeTy MT,
-                                    DeclareTargetContextInfo &DTCI);
-
-  /// Check declaration inside target region.
-  void
-  checkDeclIsAllowedInOpenMPTarget(Expr *E, Decl *D,
-                                   SourceLocation IdLoc = SourceLocation());
-
-  /// Adds OMPDeclareTargetDeclAttr to referenced variables in declare target
-  /// directive.
-  void ActOnOpenMPDeclareTargetInitializer(Decl *D);
-
-  /// Finishes analysis of the deferred functions calls that may be declared as
-  /// host/nohost during device/host compilation.
-  void finalizeOpenMPDelayedAnalysis(const FunctionDecl *Caller,
-                                     const FunctionDecl *Callee,
-                                     SourceLocation Loc);
-
-  /// Return true if currently in OpenMP task with untied clause context.
-  bool isInOpenMPTaskUntiedContext() const;
-
-  /// Return true inside OpenMP declare target region.
-  bool isInOpenMPDeclareTargetContext() const {
-    return !DeclareTargetNesting.empty();
-  }
-  /// Return true inside OpenMP target region.
-  bool isInOpenMPTargetExecutionDirective() const;
-
-  /// Return the number of captured regions created for an OpenMP directive.
-  static int getOpenMPCaptureLevels(OpenMPDirectiveKind Kind);
-
-  /// Initialization of captured region for OpenMP region.
-  void ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope);
-
-  /// Called for syntactical loops (ForStmt or CXXForRangeStmt) associated to
-  /// an OpenMP loop directive.
-  StmtResult ActOnOpenMPCanonicalLoop(Stmt *AStmt);
-
-  /// Process a canonical OpenMP loop nest that can either be a canonical
-  /// literal loop (ForStmt or CXXForRangeStmt), or the generated loop of an
-  /// OpenMP loop transformation construct.
-  StmtResult ActOnOpenMPLoopnest(Stmt *AStmt);
-
-  /// End of OpenMP region.
-  ///
-  /// \param S Statement associated with the current OpenMP region.
-  /// \param Clauses List of clauses for the current OpenMP region.
-  ///
-  /// \returns Statement for finished OpenMP region.
-  StmtResult ActOnOpenMPRegionEnd(StmtResult S, ArrayRef<OMPClause *> Clauses);
-  StmtResult ActOnOpenMPExecutableDirective(
-      OpenMPDirectiveKind Kind, const DeclarationNameInfo &DirName,
-      OpenMPDirectiveKind CancelRegion, ArrayRef<OMPClause *> Clauses,
-      Stmt *AStmt, SourceLocation StartLoc, SourceLocation EndLoc,
-      OpenMPDirectiveKind PrevMappedDirective = llvm::omp::OMPD_unknown);
-  /// Called on well-formed '\#pragma omp parallel' after parsing
-  /// of the  associated statement.
-  StmtResult ActOnOpenMPParallelDirective(ArrayRef<OMPClause *> Clauses,
-                                          Stmt *AStmt, SourceLocation StartLoc,
-                                          SourceLocation EndLoc);
-  using VarsWithInheritedDSAType =
-      llvm::SmallDenseMap<const ValueDecl *, const Expr *, 4>;
-  /// Called on well-formed '\#pragma omp simd' after parsing
-  /// of the associated statement.
-  StmtResult
-  ActOnOpenMPSimdDirective(ArrayRef<OMPClause *> Clauses, Stmt *AStmt,
-                           SourceLocation StartLoc, SourceLocation EndLoc,
-                           VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '#pragma omp tile' after parsing of its clauses and
-  /// the associated statement.
-  StmtResult ActOnOpenMPTileDirective(ArrayRef<OMPClause *> Clauses,
-                                      Stmt *AStmt, SourceLocation StartLoc,
-                                      SourceLocation EndLoc);
-  /// Called on well-formed '#pragma omp unroll' after parsing of its clauses
-  /// and the associated statement.
-  StmtResult ActOnOpenMPUnrollDirective(ArrayRef<OMPClause *> Clauses,
-                                        Stmt *AStmt, SourceLocation StartLoc,
-                                        SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp for' after parsing
-  /// of the associated statement.
-  StmtResult
-  ActOnOpenMPForDirective(ArrayRef<OMPClause *> Clauses, Stmt *AStmt,
-                          SourceLocation StartLoc, SourceLocation EndLoc,
-                          VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp for simd' after parsing
-  /// of the associated statement.
-  StmtResult
-  ActOnOpenMPForSimdDirective(ArrayRef<OMPClause *> Clauses, Stmt *AStmt,
-                              SourceLocation StartLoc, SourceLocation EndLoc,
-                              VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp sections' after parsing
-  /// of the associated statement.
-  StmtResult ActOnOpenMPSectionsDirective(ArrayRef<OMPClause *> Clauses,
-                                          Stmt *AStmt, SourceLocation StartLoc,
-                                          SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp section' after parsing of the
-  /// associated statement.
-  StmtResult ActOnOpenMPSectionDirective(Stmt *AStmt, SourceLocation StartLoc,
-                                         SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp scope' after parsing of the
-  /// associated statement.
-  StmtResult ActOnOpenMPScopeDirective(ArrayRef<OMPClause *> Clauses,
-                                       Stmt *AStmt, SourceLocation StartLoc,
-                                       SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp single' after parsing of the
-  /// associated statement.
-  StmtResult ActOnOpenMPSingleDirective(ArrayRef<OMPClause *> Clauses,
-                                        Stmt *AStmt, SourceLocation StartLoc,
-                                        SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp master' after parsing of the
-  /// associated statement.
-  StmtResult ActOnOpenMPMasterDirective(Stmt *AStmt, SourceLocation StartLoc,
-                                        SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp critical' after parsing of the
-  /// associated statement.
-  StmtResult ActOnOpenMPCriticalDirective(const DeclarationNameInfo &DirName,
-                                          ArrayRef<OMPClause *> Clauses,
-                                          Stmt *AStmt, SourceLocation StartLoc,
-                                          SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp parallel for' after parsing
-  /// of the  associated statement.
-  StmtResult ActOnOpenMPParallelForDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp parallel for simd' after
-  /// parsing of the  associated statement.
-  StmtResult ActOnOpenMPParallelForSimdDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp parallel master' after
-  /// parsing of the  associated statement.
-  StmtResult ActOnOpenMPParallelMasterDirective(ArrayRef<OMPClause *> Clauses,
-                                                Stmt *AStmt,
-                                                SourceLocation StartLoc,
-                                                SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp parallel masked' after
-  /// parsing of the associated statement.
-  StmtResult ActOnOpenMPParallelMaskedDirective(ArrayRef<OMPClause *> Clauses,
-                                                Stmt *AStmt,
-                                                SourceLocation StartLoc,
-                                                SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp parallel sections' after
-  /// parsing of the  associated statement.
-  StmtResult ActOnOpenMPParallelSectionsDirective(ArrayRef<OMPClause *> Clauses,
-                                                  Stmt *AStmt,
-                                                  SourceLocation StartLoc,
-                                                  SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp task' after parsing of the
-  /// associated statement.
-  StmtResult ActOnOpenMPTaskDirective(ArrayRef<OMPClause *> Clauses,
-                                      Stmt *AStmt, SourceLocation StartLoc,
-                                      SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp taskyield'.
-  StmtResult ActOnOpenMPTaskyieldDirective(SourceLocation StartLoc,
-                                           SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp error'.
-  /// Error direcitive is allowed in both declared and excutable contexts.
-  /// Adding InExContext to identify which context is called from.
-  StmtResult ActOnOpenMPErrorDirective(ArrayRef<OMPClause *> Clauses,
-                                       SourceLocation StartLoc,
-                                       SourceLocation EndLoc,
-                                       bool InExContext = true);
-  /// Called on well-formed '\#pragma omp barrier'.
-  StmtResult ActOnOpenMPBarrierDirective(SourceLocation StartLoc,
-                                         SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp taskwait'.
-  StmtResult ActOnOpenMPTaskwaitDirective(ArrayRef<OMPClause *> Clauses,
-                                          SourceLocation StartLoc,
-                                          SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp taskgroup'.
-  StmtResult ActOnOpenMPTaskgroupDirective(ArrayRef<OMPClause *> Clauses,
-                                           Stmt *AStmt, SourceLocation StartLoc,
-                                           SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp flush'.
-  StmtResult ActOnOpenMPFlushDirective(ArrayRef<OMPClause *> Clauses,
-                                       SourceLocation StartLoc,
-                                       SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp depobj'.
-  StmtResult ActOnOpenMPDepobjDirective(ArrayRef<OMPClause *> Clauses,
-                                        SourceLocation StartLoc,
-                                        SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp scan'.
-  StmtResult ActOnOpenMPScanDirective(ArrayRef<OMPClause *> Clauses,
-                                      SourceLocation StartLoc,
-                                      SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp ordered' after parsing of the
-  /// associated statement.
-  StmtResult ActOnOpenMPOrderedDirective(ArrayRef<OMPClause *> Clauses,
-                                         Stmt *AStmt, SourceLocation StartLoc,
-                                         SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp atomic' after parsing of the
-  /// associated statement.
-  StmtResult ActOnOpenMPAtomicDirective(ArrayRef<OMPClause *> Clauses,
-                                        Stmt *AStmt, SourceLocation StartLoc,
-                                        SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp target' after parsing of the
-  /// associated statement.
-  StmtResult ActOnOpenMPTargetDirective(ArrayRef<OMPClause *> Clauses,
-                                        Stmt *AStmt, SourceLocation StartLoc,
-                                        SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp target data' after parsing of
-  /// the associated statement.
-  StmtResult ActOnOpenMPTargetDataDirective(ArrayRef<OMPClause *> Clauses,
-                                            Stmt *AStmt,
-                                            SourceLocation StartLoc,
-                                            SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp target enter data' after
-  /// parsing of the associated statement.
-  StmtResult ActOnOpenMPTargetEnterDataDirective(ArrayRef<OMPClause *> Clauses,
-                                                 SourceLocation StartLoc,
-                                                 SourceLocation EndLoc,
-                                                 Stmt *AStmt);
-  /// Called on well-formed '\#pragma omp target exit data' after
-  /// parsing of the associated statement.
-  StmtResult ActOnOpenMPTargetExitDataDirective(ArrayRef<OMPClause *> Clauses,
-                                                SourceLocation StartLoc,
-                                                SourceLocation EndLoc,
-                                                Stmt *AStmt);
-  /// Called on well-formed '\#pragma omp target parallel' after
-  /// parsing of the associated statement.
-  StmtResult ActOnOpenMPTargetParallelDirective(ArrayRef<OMPClause *> Clauses,
-                                                Stmt *AStmt,
-                                                SourceLocation StartLoc,
-                                                SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp target parallel for' after
-  /// parsing of the  associated statement.
-  StmtResult ActOnOpenMPTargetParallelForDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp teams' after parsing of the
-  /// associated statement.
-  StmtResult ActOnOpenMPTeamsDirective(ArrayRef<OMPClause *> Clauses,
-                                       Stmt *AStmt, SourceLocation StartLoc,
-                                       SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp teams loop' after parsing of the
-  /// associated statement.
-  StmtResult ActOnOpenMPTeamsGenericLoopDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp target teams loop' after parsing of
-  /// the associated statement.
-  StmtResult ActOnOpenMPTargetTeamsGenericLoopDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp parallel loop' after parsing of the
-  /// associated statement.
-  StmtResult ActOnOpenMPParallelGenericLoopDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp target parallel loop' after parsing
-  /// of the associated statement.
-  StmtResult ActOnOpenMPTargetParallelGenericLoopDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp cancellation point'.
-  StmtResult
-  ActOnOpenMPCancellationPointDirective(SourceLocation StartLoc,
-                                        SourceLocation EndLoc,
-                                        OpenMPDirectiveKind CancelRegion);
-  /// Called on well-formed '\#pragma omp cancel'.
-  StmtResult ActOnOpenMPCancelDirective(ArrayRef<OMPClause *> Clauses,
-                                        SourceLocation StartLoc,
-                                        SourceLocation EndLoc,
-                                        OpenMPDirectiveKind CancelRegion);
-  /// Called on well-formed '\#pragma omp taskloop' after parsing of the
-  /// associated statement.
-  StmtResult
-  ActOnOpenMPTaskLoopDirective(ArrayRef<OMPClause *> Clauses, Stmt *AStmt,
-                               SourceLocation StartLoc, SourceLocation EndLoc,
-                               VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp taskloop simd' after parsing of
-  /// the associated statement.
-  StmtResult ActOnOpenMPTaskLoopSimdDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp master taskloop' after parsing of the
-  /// associated statement.
-  StmtResult ActOnOpenMPMasterTaskLoopDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp master taskloop simd' after parsing of
-  /// the associated statement.
-  StmtResult ActOnOpenMPMasterTaskLoopSimdDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp parallel master taskloop' after
-  /// parsing of the associated statement.
-  StmtResult ActOnOpenMPParallelMasterTaskLoopDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp parallel master taskloop simd' after
-  /// parsing of the associated statement.
-  StmtResult ActOnOpenMPParallelMasterTaskLoopSimdDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp masked taskloop' after parsing of the
-  /// associated statement.
-  StmtResult ActOnOpenMPMaskedTaskLoopDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp masked taskloop simd' after parsing of
-  /// the associated statement.
-  StmtResult ActOnOpenMPMaskedTaskLoopSimdDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp parallel masked taskloop' after
-  /// parsing of the associated statement.
-  StmtResult ActOnOpenMPParallelMaskedTaskLoopDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp parallel masked taskloop simd' after
-  /// parsing of the associated statement.
-  StmtResult ActOnOpenMPParallelMaskedTaskLoopSimdDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp distribute' after parsing
-  /// of the associated statement.
-  StmtResult
-  ActOnOpenMPDistributeDirective(ArrayRef<OMPClause *> Clauses, Stmt *AStmt,
-                                 SourceLocation StartLoc, SourceLocation EndLoc,
-                                 VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp target update'.
-  StmtResult ActOnOpenMPTargetUpdateDirective(ArrayRef<OMPClause *> Clauses,
-                                              SourceLocation StartLoc,
-                                              SourceLocation EndLoc,
-                                              Stmt *AStmt);
-  /// Called on well-formed '\#pragma omp distribute parallel for' after
-  /// parsing of the associated statement.
-  StmtResult ActOnOpenMPDistributeParallelForDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp distribute parallel for simd'
-  /// after parsing of the associated statement.
-  StmtResult ActOnOpenMPDistributeParallelForSimdDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp distribute simd' after
-  /// parsing of the associated statement.
-  StmtResult ActOnOpenMPDistributeSimdDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp target parallel for simd' after
-  /// parsing of the associated statement.
-  StmtResult ActOnOpenMPTargetParallelForSimdDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp target simd' after parsing of
-  /// the associated statement.
-  StmtResult
-  ActOnOpenMPTargetSimdDirective(ArrayRef<OMPClause *> Clauses, Stmt *AStmt,
-                                 SourceLocation StartLoc, SourceLocation EndLoc,
-                                 VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp teams distribute' after parsing of
-  /// the associated statement.
-  StmtResult ActOnOpenMPTeamsDistributeDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp teams distribute simd' after parsing
-  /// of the associated statement.
-  StmtResult ActOnOpenMPTeamsDistributeSimdDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp teams distribute parallel for simd'
-  /// after parsing of the associated statement.
-  StmtResult ActOnOpenMPTeamsDistributeParallelForSimdDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp teams distribute parallel for'
-  /// after parsing of the associated statement.
-  StmtResult ActOnOpenMPTeamsDistributeParallelForDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp target teams' after parsing of the
-  /// associated statement.
-  StmtResult ActOnOpenMPTargetTeamsDirective(ArrayRef<OMPClause *> Clauses,
-                                             Stmt *AStmt,
-                                             SourceLocation StartLoc,
-                                             SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp target teams distribute' after parsing
-  /// of the associated statement.
-  StmtResult ActOnOpenMPTargetTeamsDistributeDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp target teams distribute parallel for'
-  /// after parsing of the associated statement.
-  StmtResult ActOnOpenMPTargetTeamsDistributeParallelForDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp target teams distribute parallel for
-  /// simd' after parsing of the associated statement.
-  StmtResult ActOnOpenMPTargetTeamsDistributeParallelForSimdDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp target teams distribute simd' after
-  /// parsing of the associated statement.
-  StmtResult ActOnOpenMPTargetTeamsDistributeSimdDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-  /// Called on well-formed '\#pragma omp interop'.
-  StmtResult ActOnOpenMPInteropDirective(ArrayRef<OMPClause *> Clauses,
-                                         SourceLocation StartLoc,
-                                         SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp dispatch' after parsing of the
-  // /associated statement.
-  StmtResult ActOnOpenMPDispatchDirective(ArrayRef<OMPClause *> Clauses,
-                                          Stmt *AStmt, SourceLocation StartLoc,
-                                          SourceLocation EndLoc);
-  /// Called on well-formed '\#pragma omp masked' after parsing of the
-  // /associated statement.
-  StmtResult ActOnOpenMPMaskedDirective(ArrayRef<OMPClause *> Clauses,
-                                        Stmt *AStmt, SourceLocation StartLoc,
-                                        SourceLocation EndLoc);
-
-  /// Called on well-formed '\#pragma omp loop' after parsing of the
-  /// associated statement.
-  StmtResult ActOnOpenMPGenericLoopDirective(
-      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
-      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
-
-  /// Checks correctness of linear modifiers.
-  bool CheckOpenMPLinearModifier(OpenMPLinearClauseKind LinKind,
-                                 SourceLocation LinLoc);
-  /// Checks that the specified declaration matches requirements for the linear
-  /// decls.
-  bool CheckOpenMPLinearDecl(const ValueDecl *D, SourceLocation ELoc,
-                             OpenMPLinearClauseKind LinKind, QualType Type,
-                             bool IsDeclareSimd = false);
-
-  /// Called on well-formed '\#pragma omp declare simd' after parsing of
-  /// the associated method/function.
-  DeclGroupPtrTy ActOnOpenMPDeclareSimdDirective(
-      DeclGroupPtrTy DG, OMPDeclareSimdDeclAttr::BranchStateTy BS,
-      Expr *Simdlen, ArrayRef<Expr *> Uniforms, ArrayRef<Expr *> Aligneds,
-      ArrayRef<Expr *> Alignments, ArrayRef<Expr *> Linears,
-      ArrayRef<unsigned> LinModifiers, ArrayRef<Expr *> Steps, SourceRange SR);
-
-  /// Checks '\#pragma omp declare variant' variant function and original
-  /// functions after parsing of the associated method/function.
-  /// \param DG Function declaration to which declare variant directive is
-  /// applied to.
-  /// \param VariantRef Expression that references the variant function, which
-  /// must be used instead of the original one, specified in \p DG.
-  /// \param TI The trait info object representing the match clause.
-  /// \param NumAppendArgs The number of omp_interop_t arguments to account for
-  /// in checking.
-  /// \returns std::nullopt, if the function/variant function are not compatible
-  /// with the pragma, pair of original function/variant ref expression
-  /// otherwise.
-  std::optional<std::pair<FunctionDecl *, Expr *>>
-  checkOpenMPDeclareVariantFunction(DeclGroupPtrTy DG, Expr *VariantRef,
-                                    OMPTraitInfo &TI, unsigned NumAppendArgs,
-                                    SourceRange SR);
-
-  /// Called on well-formed '\#pragma omp declare variant' after parsing of
-  /// the associated method/function.
-  /// \param FD Function declaration to which declare variant directive is
-  /// applied to.
-  /// \param VariantRef Expression that references the variant function, which
-  /// must be used instead of the original one, specified in \p DG.
-  /// \param TI The context traits associated with the function variant.
-  /// \param AdjustArgsNothing The list of 'nothing' arguments.
-  /// \param AdjustArgsNeedDevicePtr The list of 'need_device_ptr' arguments.
-  /// \param AppendArgs The list of 'append_args' arguments.
-  /// \param AdjustArgsLoc The Location of an 'adjust_args' clause.
-  /// \param AppendArgsLoc The Location of an 'append_args' clause.
-  /// \param SR The SourceRange of the 'declare variant' directive.
-  void ActOnOpenMPDeclareVariantDirective(
-      FunctionDecl *FD, Expr *VariantRef, OMPTraitInfo &TI,
-      ArrayRef<Expr *> AdjustArgsNothing,
-      ArrayRef<Expr *> AdjustArgsNeedDevicePtr,
-      ArrayRef<OMPInteropInfo> AppendArgs, SourceLocation AdjustArgsLoc,
-      SourceLocation AppendArgsLoc, SourceRange SR);
-
-  OMPClause *ActOnOpenMPSingleExprClause(OpenMPClauseKind Kind, Expr *Expr,
-                                         SourceLocation StartLoc,
-                                         SourceLocation LParenLoc,
-                                         SourceLocation EndLoc);
-  /// Called on well-formed 'allocator' clause.
-  OMPClause *ActOnOpenMPAllocatorClause(Expr *Allocator,
-                                        SourceLocation StartLoc,
-                                        SourceLocation LParenLoc,
-                                        SourceLocation EndLoc);
-  /// Called on well-formed 'if' clause.
-  OMPClause *ActOnOpenMPIfClause(OpenMPDirectiveKind NameModifier,
-                                 Expr *Condition, SourceLocation StartLoc,
-                                 SourceLocation LParenLoc,
-                                 SourceLocation NameModifierLoc,
-                                 SourceLocation ColonLoc,
-                                 SourceLocation EndLoc);
-  /// Called on well-formed 'final' clause.
-  OMPClause *ActOnOpenMPFinalClause(Expr *Condition, SourceLocation StartLoc,
-                                    SourceLocation LParenLoc,
-                                    SourceLocation EndLoc);
-  /// Called on well-formed 'num_threads' clause.
-  OMPClause *ActOnOpenMPNumThreadsClause(Expr *NumThreads,
-                                         SourceLocation StartLoc,
-                                         SourceLocation LParenLoc,
-                                         SourceLocation EndLoc);
-  /// Called on well-formed 'align' clause.
-  OMPClause *ActOnOpenMPAlignClause(Expr *Alignment, SourceLocation StartLoc,
-                                    SourceLocation LParenLoc,
-                                    SourceLocation EndLoc);
-  /// Called on well-formed 'safelen' clause.
-  OMPClause *ActOnOpenMPSafelenClause(Expr *Length, SourceLocation StartLoc,
-                                      SourceLocation LParenLoc,
-                                      SourceLocation EndLoc);
-  /// Called on well-formed 'simdlen' clause.
-  OMPClause *ActOnOpenMPSimdlenClause(Expr *Length, SourceLocation StartLoc,
-                                      SourceLocation LParenLoc,
-                                      SourceLocation EndLoc);
-  /// Called on well-form 'sizes' clause.
-  OMPClause *ActOnOpenMPSizesClause(ArrayRef<Expr *> SizeExprs,
-                                    SourceLocation StartLoc,
-                                    SourceLocation LParenLoc,
-                                    SourceLocation EndLoc);
-  /// Called on well-form 'full' clauses.
-  OMPClause *ActOnOpenMPFullClause(SourceLocation StartLoc,
-                                   SourceLocation EndLoc);
-  /// Called on well-form 'partial' clauses.
-  OMPClause *ActOnOpenMPPartialClause(Expr *FactorExpr, SourceLocation StartLoc,
-                                      SourceLocation LParenLoc,
-                                      SourceLocation EndLoc);
-  /// Called on well-formed 'collapse' clause.
-  OMPClause *ActOnOpenMPCollapseClause(Expr *NumForLoops,
-                                       SourceLocation StartLoc,
-                                       SourceLocation LParenLoc,
-                                       SourceLocation EndLoc);
-  /// Called on well-formed 'ordered' clause.
-  OMPClause *
-  ActOnOpenMPOrderedClause(SourceLocation StartLoc, SourceLocation EndLoc,
-                           SourceLocation LParenLoc = SourceLocation(),
-                           Expr *NumForLoops = nullptr);
-  /// Called on well-formed 'grainsize' clause.
-  OMPClause *ActOnOpenMPGrainsizeClause(OpenMPGrainsizeClauseModifier Modifier,
-                                        Expr *Size, SourceLocation StartLoc,
-                                        SourceLocation LParenLoc,
-                                        SourceLocation ModifierLoc,
-                                        SourceLocation EndLoc);
-  /// Called on well-formed 'num_tasks' clause.
-  OMPClause *ActOnOpenMPNumTasksClause(OpenMPNumTasksClauseModifier Modifier,
-                                       Expr *NumTasks, SourceLocation StartLoc,
-                                       SourceLocation LParenLoc,
-                                       SourceLocation ModifierLoc,
-                                       SourceLocation EndLoc);
-  /// Called on well-formed 'hint' clause.
-  OMPClause *ActOnOpenMPHintClause(Expr *Hint, SourceLocation StartLoc,
-                                   SourceLocation LParenLoc,
-                                   SourceLocation EndLoc);
-  /// Called on well-formed 'detach' clause.
-  OMPClause *ActOnOpenMPDetachClause(Expr *Evt, SourceLocation StartLoc,
-                                     SourceLocation LParenLoc,
-                                     SourceLocation EndLoc);
-
-  OMPClause *ActOnOpenMPSimpleClause(OpenMPClauseKind Kind, unsigned Argument,
-                                     SourceLocation ArgumentLoc,
-                                     SourceLocation StartLoc,
-                                     SourceLocation LParenLoc,
-                                     SourceLocation EndLoc);
-  /// Called on well-formed 'when' clause.
-  OMPClause *ActOnOpenMPWhenClause(OMPTraitInfo &TI, SourceLocation StartLoc,
-                                   SourceLocation LParenLoc,
-                                   SourceLocation EndLoc);
-  /// Called on well-formed 'default' clause.
-  OMPClause *ActOnOpenMPDefaultClause(llvm::omp::DefaultKind Kind,
-                                      SourceLocation KindLoc,
-                                      SourceLocation StartLoc,
-                                      SourceLocation LParenLoc,
-                                      SourceLocation EndLoc);
-  /// Called on well-formed 'proc_bind' clause.
-  OMPClause *ActOnOpenMPProcBindClause(llvm::omp::ProcBindKind Kind,
-                                       SourceLocation KindLoc,
-                                       SourceLocation StartLoc,
-                                       SourceLocation LParenLoc,
-                                       SourceLocation EndLoc);
-  /// Called on well-formed 'order' clause.
-  OMPClause *ActOnOpenMPOrderClause(OpenMPOrderClauseModifier Modifier,
-                                    OpenMPOrderClauseKind Kind,
-                                    SourceLocation StartLoc,
-                                    SourceLocation LParenLoc,
-                                    SourceLocation MLoc, SourceLocation KindLoc,
-                                    SourceLocation EndLoc);
-  /// Called on well-formed 'update' clause.
-  OMPClause *ActOnOpenMPUpdateClause(OpenMPDependClauseKind Kind,
-                                     SourceLocation KindLoc,
-                                     SourceLocation StartLoc,
-                                     SourceLocation LParenLoc,
-                                     SourceLocation EndLoc);
-
-  OMPClause *ActOnOpenMPSingleExprWithArgClause(
-      OpenMPClauseKind Kind, ArrayRef<unsigned> Arguments, Expr *Expr,
-      SourceLocation StartLoc, SourceLocation LParenLoc,
-      ArrayRef<SourceLocation> ArgumentsLoc, SourceLocation DelimLoc,
-      SourceLocation EndLoc);
-  /// Called on well-formed 'schedule' clause.
-  OMPClause *ActOnOpenMPScheduleClause(
-      OpenMPScheduleClauseModifier M1, OpenMPScheduleClauseModifier M2,
-      OpenMPScheduleClauseKind Kind, Expr *ChunkSize, SourceLocation StartLoc,
-      SourceLocation LParenLoc, SourceLocation M1Loc, SourceLocation M2Loc,
-      SourceLocation KindLoc, SourceLocation CommaLoc, SourceLocation EndLoc);
-
-  OMPClause *ActOnOpenMPClause(OpenMPClauseKind Kind, SourceLocation StartLoc,
-                               SourceLocation EndLoc);
-  /// Called on well-formed 'nowait' clause.
-  OMPClause *ActOnOpenMPNowaitClause(SourceLocation StartLoc,
-                                     SourceLocation EndLoc);
-  /// Called on well-formed 'untied' clause.
-  OMPClause *ActOnOpenMPUntiedClause(SourceLocation StartLoc,
-                                     SourceLocation EndLoc);
-  /// Called on well-formed 'mergeable' clause.
-  OMPClause *ActOnOpenMPMergeableClause(SourceLocation StartLoc,
-                                        SourceLocation EndLoc);
-  /// Called on well-formed 'read' clause.
-  OMPClause *ActOnOpenMPReadClause(SourceLocation StartLoc,
-                                   SourceLocation EndLoc);
-  /// Called on well-formed 'write' clause.
-  OMPClause *ActOnOpenMPWriteClause(SourceLocation StartLoc,
-                                    SourceLocation EndLoc);
-  /// Called on well-formed 'update' clause.
-  OMPClause *ActOnOpenMPUpdateClause(SourceLocation StartLoc,
-                                     SourceLocation EndLoc);
-  /// Called on well-formed 'capture' clause.
-  OMPClause *ActOnOpenMPCaptureClause(SourceLocation StartLoc,
-                                      SourceLocation EndLoc);
-  /// Called on well-formed 'compare' clause.
-  OMPClause *ActOnOpenMPCompareClause(SourceLocation StartLoc,
-                                      SourceLocation EndLoc);
-  /// Called on well-formed 'fail' clause.
-  OMPClause *ActOnOpenMPFailClause(SourceLocation StartLoc,
-                                   SourceLocation EndLoc);
-  OMPClause *ActOnOpenMPFailClause(OpenMPClauseKind Kind,
-                                   SourceLocation KindLoc,
-                                   SourceLocation StartLoc,
-                                   SourceLocation LParenLoc,
-                                   SourceLocation EndLoc);
-
-  /// Called on well-formed 'seq_cst' clause.
-  OMPClause *ActOnOpenMPSeqCstClause(SourceLocation StartLoc,
-                                     SourceLocation EndLoc);
-  /// Called on well-formed 'acq_rel' clause.
-  OMPClause *ActOnOpenMPAcqRelClause(SourceLocation StartLoc,
-                                     SourceLocation EndLoc);
-  /// Called on well-formed 'acquire' clause.
-  OMPClause *ActOnOpenMPAcquireClause(SourceLocation StartLoc,
-                                      SourceLocation EndLoc);
-  /// Called on well-formed 'release' clause.
-  OMPClause *ActOnOpenMPReleaseClause(SourceLocation StartLoc,
-                                      SourceLocation EndLoc);
-  /// Called on well-formed 'relaxed' clause.
-  OMPClause *ActOnOpenMPRelaxedClause(SourceLocation StartLoc,
-                                      SourceLocation EndLoc);
-  /// Called on well-formed 'weak' clause.
-  OMPClause *ActOnOpenMPWeakClause(SourceLocation StartLoc,
-                                   SourceLocation EndLoc);
-
-  /// Called on well-formed 'init' clause.
-  OMPClause *
-  ActOnOpenMPInitClause(Expr *InteropVar, OMPInteropInfo &InteropInfo,
-                        SourceLocation StartLoc, SourceLocation LParenLoc,
-                        SourceLocation VarLoc, SourceLocation EndLoc);
-
-  /// Called on well-formed 'use' clause.
-  OMPClause *ActOnOpenMPUseClause(Expr *InteropVar, SourceLocation StartLoc,
-                                  SourceLocation LParenLoc,
-                                  SourceLocation VarLoc, SourceLocation EndLoc);
-
-  /// Called on well-formed 'destroy' clause.
-  OMPClause *ActOnOpenMPDestroyClause(Expr *InteropVar, SourceLocation StartLoc,
-                                      SourceLocation LParenLoc,
-                                      SourceLocation VarLoc,
-                                      SourceLocation EndLoc);
-  /// Called on well-formed 'novariants' clause.
-  OMPClause *ActOnOpenMPNovariantsClause(Expr *Condition,
-                                         SourceLocation StartLoc,
-                                         SourceLocation LParenLoc,
-                                         SourceLocation EndLoc);
-  /// Called on well-formed 'nocontext' clause.
-  OMPClause *ActOnOpenMPNocontextClause(Expr *Condition,
-                                        SourceLocation StartLoc,
-                                        SourceLocation LParenLoc,
-                                        SourceLocation EndLoc);
-  /// Called on well-formed 'filter' clause.
-  OMPClause *ActOnOpenMPFilterClause(Expr *ThreadID, SourceLocation StartLoc,
-                                     SourceLocation LParenLoc,
-                                     SourceLocation EndLoc);
-  /// Called on well-formed 'threads' clause.
-  OMPClause *ActOnOpenMPThreadsClause(SourceLocation StartLoc,
-                                      SourceLocation EndLoc);
-  /// Called on well-formed 'simd' clause.
-  OMPClause *ActOnOpenMPSIMDClause(SourceLocation StartLoc,
-                                   SourceLocation EndLoc);
-  /// Called on well-formed 'nogroup' clause.
-  OMPClause *ActOnOpenMPNogroupClause(SourceLocation StartLoc,
-                                      SourceLocation EndLoc);
-  /// Called on well-formed 'unified_address' clause.
-  OMPClause *ActOnOpenMPUnifiedAddressClause(SourceLocation StartLoc,
-                                             SourceLocation EndLoc);
-
-  /// Called on well-formed 'unified_address' clause.
-  OMPClause *ActOnOpenMPUnifiedSharedMemoryClause(SourceLocation StartLoc,
-                                                  SourceLocation EndLoc);
-
-  /// Called on well-formed 'reverse_offload' clause.
-  OMPClause *ActOnOpenMPReverseOffloadClause(SourceLocation StartLoc,
-                                             SourceLocation EndLoc);
-
-  /// Called on well-formed 'dynamic_allocators' clause.
-  OMPClause *ActOnOpenMPDynamicAllocatorsClause(SourceLocation StartLoc,
-                                                SourceLocation EndLoc);
-
-  /// Called on well-formed 'atomic_default_mem_order' clause.
-  OMPClause *ActOnOpenMPAtomicDefaultMemOrderClause(
-      OpenMPAtomicDefaultMemOrderClauseKind Kind, SourceLocation KindLoc,
-      SourceLocation StartLoc, SourceLocation LParenLoc, SourceLocation EndLoc);
-
-  /// Called on well-formed 'at' clause.
-  OMPClause *ActOnOpenMPAtClause(OpenMPAtClauseKind Kind,
-                                 SourceLocation KindLoc,
-                                 SourceLocation StartLoc,
-                                 SourceLocation LParenLoc,
-                                 SourceLocation EndLoc);
-
-  /// Called on well-formed 'severity' clause.
-  OMPClause *ActOnOpenMPSeverityClause(OpenMPSeverityClauseKind Kind,
-                                       SourceLocation KindLoc,
-                                       SourceLocation StartLoc,
-                                       SourceLocation LParenLoc,
-                                       SourceLocation EndLoc);
-
-  /// Called on well-formed 'message' clause.
-  /// passing string for message.
-  OMPClause *ActOnOpenMPMessageClause(Expr *MS, SourceLocation StartLoc,
-                                      SourceLocation LParenLoc,
-                                      SourceLocation EndLoc);
-
-  /// Data used for processing a list of variables in OpenMP clauses.
-  struct OpenMPVarListDataTy final {
-    Expr *DepModOrTailExpr = nullptr;
-    Expr *IteratorExpr = nullptr;
-    SourceLocation ColonLoc;
-    SourceLocation RLoc;
-    CXXScopeSpec ReductionOrMapperIdScopeSpec;
-    DeclarationNameInfo ReductionOrMapperId;
-    int ExtraModifier = -1; ///< Additional modifier for linear, map, depend or
-                            ///< lastprivate clause.
-    SmallVector<OpenMPMapModifierKind, NumberOfOMPMapClauseModifiers>
-        MapTypeModifiers;
-    SmallVector<SourceLocation, NumberOfOMPMapClauseModifiers>
-        MapTypeModifiersLoc;
-    SmallVector<OpenMPMotionModifierKind, NumberOfOMPMotionModifiers>
-        MotionModifiers;
-    SmallVector<SourceLocation, NumberOfOMPMotionModifiers> MotionModifiersLoc;
-    bool IsMapTypeImplicit = false;
-    SourceLocation ExtraModifierLoc;
-    SourceLocation OmpAllMemoryLoc;
-    SourceLocation
-        StepModifierLoc; /// 'step' modifier location for linear clause
-  };
-
-  OMPClause *ActOnOpenMPVarListClause(OpenMPClauseKind Kind,
-                                      ArrayRef<Expr *> Vars,
-                                      const OMPVarListLocTy &Locs,
-                                      OpenMPVarListDataTy &Data);
-  /// Called on well-formed 'inclusive' clause.
-  OMPClause *ActOnOpenMPInclusiveClause(ArrayRef<Expr *> VarList,
-                                        SourceLocation StartLoc,
-                                        SourceLocation LParenLoc,
-                                        SourceLocation EndLoc);
-  /// Called on well-formed 'exclusive' clause.
-  OMPClause *ActOnOpenMPExclusiveClause(ArrayRef<Expr *> VarList,
-                                        SourceLocation StartLoc,
-                                        SourceLocation LParenLoc,
-                                        SourceLocation EndLoc);
-  /// Called on well-formed 'allocate' clause.
-  OMPClause *
-  ActOnOpenMPAllocateClause(Expr *Allocator, ArrayRef<Expr *> VarList,
-                            SourceLocation StartLoc, SourceLocation ColonLoc,
-                            SourceLocation LParenLoc, SourceLocation EndLoc);
-  /// Called on well-formed 'private' clause.
-  OMPClause *ActOnOpenMPPrivateClause(ArrayRef<Expr *> VarList,
-                                      SourceLocation StartLoc,
-                                      SourceLocation LParenLoc,
-                                      SourceLocation EndLoc);
-  /// Called on well-formed 'firstprivate' clause.
-  OMPClause *ActOnOpenMPFirstprivateClause(ArrayRef<Expr *> VarList,
-                                           SourceLocation StartLoc,
-                                           SourceLocation LParenLoc,
-                                           SourceLocation EndLoc);
-  /// Called on well-formed 'lastprivate' clause.
-  OMPClause *ActOnOpenMPLastprivateClause(
-      ArrayRef<Expr *> VarList, OpenMPLastprivateModifier LPKind,
-      SourceLocation LPKindLoc, SourceLocation ColonLoc,
-      SourceLocation StartLoc, SourceLocation LParenLoc, SourceLocation EndLoc);
-  /// Called on well-formed 'shared' clause.
-  OMPClause *ActOnOpenMPSharedClause(ArrayRef<Expr *> VarList,
-                                     SourceLocation StartLoc,
-                                     SourceLocation LParenLoc,
-                                     SourceLocation EndLoc);
-  /// Called on well-formed 'reduction' clause.
-  OMPClause *ActOnOpenMPReductionClause(
-      ArrayRef<Expr *> VarList, OpenMPReductionClauseModifier Modifier,
-      SourceLocation StartLoc, SourceLocation LParenLoc,
-      SourceLocation ModifierLoc, SourceLocation ColonLoc,
-      SourceLocation EndLoc, CXXScopeSpec &ReductionIdScopeSpec,
-      const DeclarationNameInfo &ReductionId,
-      ArrayRef<Expr *> UnresolvedReductions = std::nullopt);
-  /// Called on well-formed 'task_reduction' clause.
-  OMPClause *ActOnOpenMPTaskReductionClause(
-      ArrayRef<Expr *> VarList, SourceLocation StartLoc,
-      SourceLocation LParenLoc, SourceLocation ColonLoc, SourceLocation EndLoc,
-      CXXScopeSpec &ReductionIdScopeSpec,
-      const DeclarationNameInfo &ReductionId,
-      ArrayRef<Expr *> UnresolvedReductions = std::nullopt);
-  /// Called on well-formed 'in_reduction' clause.
-  OMPClause *ActOnOpenMPInReductionClause(
-      ArrayRef<Expr *> VarList, SourceLocation StartLoc,
-      SourceLocation LParenLoc, SourceLocation ColonLoc, SourceLocation EndLoc,
-      CXXScopeSpec &ReductionIdScopeSpec,
-      const DeclarationNameInfo &ReductionId,
-      ArrayRef<Expr *> UnresolvedReductions = std::nullopt);
-  /// Called on well-formed 'linear' clause.
-  OMPClause *ActOnOpenMPLinearClause(
-      ArrayRef<Expr *> VarList, Expr *Step, SourceLocation StartLoc,
-      SourceLocation LParenLoc, OpenMPLinearClauseKind LinKind,
-      SourceLocation LinLoc, SourceLocation ColonLoc,
-      SourceLocation StepModifierLoc, SourceLocation EndLoc);
-  /// Called on well-formed 'aligned' clause.
-  OMPClause *ActOnOpenMPAlignedClause(ArrayRef<Expr *> VarList, Expr *Alignment,
-                                      SourceLocation StartLoc,
-                                      SourceLocation LParenLoc,
-                                      SourceLocation ColonLoc,
-                                      SourceLocation EndLoc);
-  /// Called on well-formed 'copyin' clause.
-  OMPClause *ActOnOpenMPCopyinClause(ArrayRef<Expr *> VarList,
-                                     SourceLocation StartLoc,
-                                     SourceLocation LParenLoc,
-                                     SourceLocation EndLoc);
-  /// Called on well-formed 'copyprivate' clause.
-  OMPClause *ActOnOpenMPCopyprivateClause(ArrayRef<Expr *> VarList,
-                                          SourceLocation StartLoc,
-                                          SourceLocation LParenLoc,
-                                          SourceLocation EndLoc);
-  /// Called on well-formed 'flush' pseudo clause.
-  OMPClause *ActOnOpenMPFlushClause(ArrayRef<Expr *> VarList,
-                                    SourceLocation StartLoc,
-                                    SourceLocation LParenLoc,
-                                    SourceLocation EndLoc);
-  /// Called on well-formed 'depobj' pseudo clause.
-  OMPClause *ActOnOpenMPDepobjClause(Expr *Depobj, SourceLocation StartLoc,
-                                     SourceLocation LParenLoc,
-                                     SourceLocation EndLoc);
-  /// Called on well-formed 'depend' clause.
-  OMPClause *ActOnOpenMPDependClause(const OMPDependClause::DependDataTy &Data,
-                                     Expr *DepModifier,
-                                     ArrayRef<Expr *> VarList,
-                                     SourceLocation StartLoc,
-                                     SourceLocation LParenLoc,
-                                     SourceLocation EndLoc);
-  /// Called on well-formed 'device' clause.
-  OMPClause *ActOnOpenMPDeviceClause(OpenMPDeviceClauseModifier Modifier,
-                                     Expr *Device, SourceLocation StartLoc,
-                                     SourceLocation LParenLoc,
-                                     SourceLocation ModifierLoc,
-                                     SourceLocation EndLoc);
-  /// Called on well-formed 'map' clause.
-  OMPClause *ActOnOpenMPMapClause(
-      Expr *IteratorModifier, ArrayRef<OpenMPMapModifierKind> MapTypeModifiers,
-      ArrayRef<SourceLocation> MapTypeModifiersLoc,
-      CXXScopeSpec &MapperIdScopeSpec, DeclarationNameInfo &MapperId,
-      OpenMPMapClauseKind MapType, bool IsMapTypeImplicit,
-      SourceLocation MapLoc, SourceLocation ColonLoc, ArrayRef<Expr *> VarList,
-      const OMPVarListLocTy &Locs, bool NoDiagnose = false,
-      ArrayRef<Expr *> UnresolvedMappers = std::nullopt);
-  /// Called on well-formed 'num_teams' clause.
-  OMPClause *ActOnOpenMPNumTeamsClause(Expr *NumTeams, SourceLocation StartLoc,
-                                       SourceLocation LParenLoc,
-                                       SourceLocation EndLoc);
-  /// Called on well-formed 'thread_limit' clause.
-  OMPClause *ActOnOpenMPThreadLimitClause(Expr *ThreadLimit,
-                                          SourceLocation StartLoc,
-                                          SourceLocation LParenLoc,
-                                          SourceLocation EndLoc);
-  /// Called on well-formed 'priority' clause.
-  OMPClause *ActOnOpenMPPriorityClause(Expr *Priority, SourceLocation StartLoc,
-                                       SourceLocation LParenLoc,
-                                       SourceLocation EndLoc);
-  /// Called on well-formed 'dist_schedule' clause.
-  OMPClause *ActOnOpenMPDistScheduleClause(
-      OpenMPDistScheduleClauseKind Kind, Expr *ChunkSize,
-      SourceLocation StartLoc, SourceLocation LParenLoc, SourceLocation KindLoc,
-      SourceLocation CommaLoc, SourceLocation EndLoc);
-  /// Called on well-formed 'defaultmap' clause.
-  OMPClause *ActOnOpenMPDefaultmapClause(
-      OpenMPDefaultmapClauseModifier M, OpenMPDefaultmapClauseKind Kind,
-      SourceLocation StartLoc, SourceLocation LParenLoc, SourceLocation MLoc,
-      SourceLocation KindLoc, SourceLocation EndLoc);
-  /// Called on well-formed 'to' clause.
-  OMPClause *
-  ActOnOpenMPToClause(ArrayRef<OpenMPMotionModifierKind> MotionModifiers,
-                      ArrayRef<SourceLocation> MotionModifiersLoc,
-                      CXXScopeSpec &MapperIdScopeSpec,
-                      DeclarationNameInfo &MapperId, SourceLocation ColonLoc,
-                      ArrayRef<Expr *> VarList, const OMPVarListLocTy &Locs,
-                      ArrayRef<Expr *> UnresolvedMappers = std::nullopt);
-  /// Called on well-formed 'from' clause.
-  OMPClause *
-  ActOnOpenMPFromClause(ArrayRef<OpenMPMotionModifierKind> MotionModifiers,
-                        ArrayRef<SourceLocation> MotionModifiersLoc,
-                        CXXScopeSpec &MapperIdScopeSpec,
-                        DeclarationNameInfo &MapperId, SourceLocation ColonLoc,
-                        ArrayRef<Expr *> VarList, const OMPVarListLocTy &Locs,
-                        ArrayRef<Expr *> UnresolvedMappers = std::nullopt);
-  /// Called on well-formed 'use_device_ptr' clause.
-  OMPClause *ActOnOpenMPUseDevicePtrClause(ArrayRef<Expr *> VarList,
-                                           const OMPVarListLocTy &Locs);
-  /// Called on well-formed 'use_device_addr' clause.
-  OMPClause *ActOnOpenMPUseDeviceAddrClause(ArrayRef<Expr *> VarList,
-                                            const OMPVarListLocTy &Locs);
-  /// Called on well-formed 'is_device_ptr' clause.
-  OMPClause *ActOnOpenMPIsDevicePtrClause(ArrayRef<Expr *> VarList,
-                                          const OMPVarListLocTy &Locs);
-  /// Called on well-formed 'has_device_addr' clause.
-  OMPClause *ActOnOpenMPHasDeviceAddrClause(ArrayRef<Expr *> VarList,
-                                            const OMPVarListLocTy &Locs);
-  /// Called on well-formed 'nontemporal' clause.
-  OMPClause *ActOnOpenMPNontemporalClause(ArrayRef<Expr *> VarList,
-                                          SourceLocation StartLoc,
-                                          SourceLocation LParenLoc,
-                                          SourceLocation EndLoc);
-
-  /// Data for list of allocators.
-  struct UsesAllocatorsData {
-    /// Allocator.
-    Expr *Allocator = nullptr;
-    /// Allocator traits.
-    Expr *AllocatorTraits = nullptr;
-    /// Locations of '(' and ')' symbols.
-    SourceLocation LParenLoc, RParenLoc;
-  };
-  /// Called on well-formed 'uses_allocators' clause.
-  OMPClause *ActOnOpenMPUsesAllocatorClause(SourceLocation StartLoc,
-                                            SourceLocation LParenLoc,
-                                            SourceLocation EndLoc,
-                                            ArrayRef<UsesAllocatorsData> Data);
-  /// Called on well-formed 'affinity' clause.
-  OMPClause *ActOnOpenMPAffinityClause(SourceLocation StartLoc,
-                                       SourceLocation LParenLoc,
-                                       SourceLocation ColonLoc,
-                                       SourceLocation EndLoc, Expr *Modifier,
-                                       ArrayRef<Expr *> Locators);
-  /// Called on a well-formed 'bind' clause.
-  OMPClause *ActOnOpenMPBindClause(OpenMPBindClauseKind Kind,
-                                   SourceLocation KindLoc,
-                                   SourceLocation StartLoc,
-                                   SourceLocation LParenLoc,
-                                   SourceLocation EndLoc);
-
-  /// Called on a well-formed 'ompx_dyn_cgroup_mem' clause.
-  OMPClause *ActOnOpenMPXDynCGroupMemClause(Expr *Size, SourceLocation StartLoc,
-                                            SourceLocation LParenLoc,
-                                            SourceLocation EndLoc);
-
-  /// Called on well-formed 'doacross' clause.
-  OMPClause *
-  ActOnOpenMPDoacrossClause(OpenMPDoacrossClauseModifier DepType,
-                            SourceLocation DepLoc, SourceLocation ColonLoc,
-                            ArrayRef<Expr *> VarList, SourceLocation StartLoc,
-                            SourceLocation LParenLoc, SourceLocation EndLoc);
-
-  /// Called on a well-formed 'ompx_attribute' clause.
-  OMPClause *ActOnOpenMPXAttributeClause(ArrayRef<const Attr *> Attrs,
-                                         SourceLocation StartLoc,
-                                         SourceLocation LParenLoc,
-                                         SourceLocation EndLoc);
-
-  /// Called on a well-formed 'ompx_bare' clause.
-  OMPClause *ActOnOpenMPXBareClause(SourceLocation StartLoc,
-                                    SourceLocation EndLoc);
-
-private:
-  void *VarDataSharingAttributesStack;
-
-  /// Number of nested '#pragma omp declare target' directives.
-  SmallVector<DeclareTargetContextInfo, 4> DeclareTargetNesting;
-
-  /// Initialization of data-sharing attributes stack.
-  void InitDataSharingAttributesStack();
-  void DestroyDataSharingAttributesStack();
-
-  /// Returns OpenMP nesting level for current directive.
-  unsigned getOpenMPNestingLevel() const;
-
-  /// Adjusts the function scopes index for the target-based regions.
-  void adjustOpenMPTargetScopeIndex(unsigned &FunctionScopesIndex,
-                                    unsigned Level) const;
-
-  /// Returns the number of scopes associated with the construct on the given
-  /// OpenMP level.
-  int getNumberOfConstructScopes(unsigned Level) const;
-
-  /// Push new OpenMP function region for non-capturing function.
-  void pushOpenMPFunctionRegion();
-
-  /// Pop OpenMP function region for non-capturing function.
-  void popOpenMPFunctionRegion(const sema::FunctionScopeInfo *OldFSI);
-
-  /// Analyzes and checks a loop nest for use by a loop transformation.
-  ///
-  /// \param Kind          The loop transformation directive kind.
-  /// \param NumLoops      How many nested loops the directive is expecting.
-  /// \param AStmt         Associated statement of the transformation directive.
-  /// \param LoopHelpers   [out] The loop analysis result.
-  /// \param Body          [out] The body code nested in \p NumLoops loop.
-  /// \param OriginalInits [out] Collection of statements and declarations that
-  ///                      must have been executed/declared before entering the
-  ///                      loop.
-  ///
-  /// \return Whether there was any error.
-  bool checkTransformableLoopNest(
-      OpenMPDirectiveKind Kind, Stmt *AStmt, int NumLoops,
-      SmallVectorImpl<OMPLoopBasedDirective::HelperExprs> &LoopHelpers,
-      Stmt *&Body,
-      SmallVectorImpl<SmallVector<llvm::PointerUnion<Stmt *, Decl *>, 0>>
-          &OriginalInits);
-
-  /// Helper to keep information about the current `omp begin/end declare
-  /// variant` nesting.
-  struct OMPDeclareVariantScope {
-    /// The associated OpenMP context selector.
-    OMPTraitInfo *TI;
-
-    /// The associated OpenMP context selector mangling.
-    std::string NameSuffix;
-
-    OMPDeclareVariantScope(OMPTraitInfo &TI);
-  };
-
-  /// Return the OMPTraitInfo for the surrounding scope, if any.
-  OMPTraitInfo *getOMPTraitInfoForSurroundingScope() {
-    return OMPDeclareVariantScopes.empty() ? nullptr
-                                           : OMPDeclareVariantScopes.back().TI;
-  }
-
-  /// The current `omp begin/end declare variant` scopes.
-  SmallVector<OMPDeclareVariantScope, 4> OMPDeclareVariantScopes;
-
-  /// The current `omp begin/end assumes` scopes.
-  SmallVector<OMPAssumeAttr *, 4> OMPAssumeScoped;
-
-  /// All `omp assumes` we encountered so far.
-  SmallVector<OMPAssumeAttr *, 4> OMPAssumeGlobal;
-
-  /// OMPD_loop is mapped to OMPD_for, OMPD_distribute or OMPD_simd depending
-  /// on the parameter of the bind clause. In the methods for the
-  /// mapped directives, check the parameters of the lastprivate clause.
-  bool checkLastPrivateForMappedDirectives(ArrayRef<OMPClause *> Clauses);
-  /// Depending on the bind clause of OMPD_loop map the directive to new
-  /// directives.
-  ///    1) loop bind(parallel) --> OMPD_for
-  ///    2) loop bind(teams) --> OMPD_distribute
-  ///    3) loop bind(thread) --> OMPD_simd
-  /// This is being handled in Sema instead of Codegen because of the need for
-  /// rigorous semantic checking in the new mapped directives.
-  bool mapLoopConstruct(llvm::SmallVector<OMPClause *> &ClausesWithoutBind,
-                        ArrayRef<OMPClause *> Clauses,
-                        OpenMPBindClauseKind &BindKind,
-                        OpenMPDirectiveKind &Kind,
-                        OpenMPDirectiveKind &PrevMappedDirective,
-                        SourceLocation StartLoc, SourceLocation EndLoc,
-                        const DeclarationNameInfo &DirName,
-                        OpenMPDirectiveKind CancelRegion);
-
-  ///@}
 };
 
 DeductionFailureInfo
diff --git a/clang/include/clang/Sema/SemaOpenMP.h b/clang/include/clang/Sema/SemaOpenMP.h
new file mode 100644
index 0000000..9927459
--- /dev/null
+++ b/clang/include/clang/Sema/SemaOpenMP.h
@@ -0,0 +1,1447 @@
+//===----- SemaOpenMP.h -- Semantic Analysis for OpenMP constructs -------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+/// \file
+/// This file declares semantic analysis for OpenMP constructs and
+/// clauses.
+///
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_SEMA_SEMAOPENMP_H
+#define LLVM_CLANG_SEMA_SEMAOPENMP_H
+
+#include "clang/AST/Attr.h"
+#include "clang/AST/Decl.h"
+#include "clang/AST/DeclBase.h"
+#include "clang/AST/DeclOpenMP.h"
+#include "clang/AST/DeclarationName.h"
+#include "clang/AST/Expr.h"
+#include "clang/AST/ExprOpenMP.h"
+#include "clang/AST/OpenMPClause.h"
+#include "clang/AST/Stmt.h"
+#include "clang/AST/StmtOpenMP.h"
+#include "clang/AST/Type.h"
+#include "clang/Basic/IdentifierTable.h"
+#include "clang/Basic/LLVM.h"
+#include "clang/Basic/OpenMPKinds.h"
+#include "clang/Basic/SourceLocation.h"
+#include "clang/Basic/Specifiers.h"
+#include "clang/Sema/DeclSpec.h"
+#include "clang/Sema/Ownership.h"
+#include "clang/Sema/Scope.h"
+#include "clang/Sema/ScopeInfo.h"
+#include "clang/Sema/SemaBase.h"
+#include "llvm/ADT/DenseMap.h"
+#include "llvm/ADT/PointerUnion.h"
+#include <optional>
+#include <string>
+#include <utility>
+
+namespace clang {
+
+class SemaOpenMP : public SemaBase {
+public:
+  SemaOpenMP(Sema &S);
+
+  friend class Parser;
+  friend class Sema;
+
+  using DeclGroupPtrTy = OpaquePtr<DeclGroupRef>;
+  using CapturedParamNameType = std::pair<StringRef, QualType>;
+
+  /// Creates a SemaDiagnosticBuilder that emits the diagnostic if the current
+  /// context is "used as device code".
+  ///
+  /// - If CurContext is a `declare target` function or it is known that the
+  /// function is emitted for the device, emits the diagnostics immediately.
+  /// - If CurContext is a non-`declare target` function and we are compiling
+  ///   for the device, creates a diagnostic which is emitted if and when we
+  ///   realize that the function will be codegen'ed.
+  ///
+  /// Example usage:
+  ///
+  ///  // Variable-length arrays are not allowed in NVPTX device code.
+  ///  if (diagIfOpenMPDeviceCode(Loc, diag::err_vla_unsupported))
+  ///    return ExprError();
+  ///  // Otherwise, continue parsing as normal.
+  SemaDiagnosticBuilder diagIfOpenMPDeviceCode(SourceLocation Loc,
+                                               unsigned DiagID,
+                                               const FunctionDecl *FD);
+
+  /// Creates a SemaDiagnosticBuilder that emits the diagnostic if the current
+  /// context is "used as host code".
+  ///
+  /// - If CurContext is a `declare target` function or it is known that the
+  /// function is emitted for the host, emits the diagnostics immediately.
+  /// - If CurContext is a non-host function, just ignore it.
+  ///
+  /// Example usage:
+  ///
+  ///  // Variable-length arrays are not allowed in NVPTX device code.
+  ///  if (diagIfOpenMPHostode(Loc, diag::err_vla_unsupported))
+  ///    return ExprError();
+  ///  // Otherwise, continue parsing as normal.
+  SemaDiagnosticBuilder diagIfOpenMPHostCode(SourceLocation Loc,
+                                             unsigned DiagID,
+                                             const FunctionDecl *FD);
+
+  /// The declarator \p D defines a function in the scope \p S which is nested
+  /// in an `omp begin/end declare variant` scope. In this method we create a
+  /// declaration for \p D and rename \p D according to the OpenMP context
+  /// selector of the surrounding scope. Return all base functions in \p Bases.
+  void ActOnStartOfFunctionDefinitionInOpenMPDeclareVariantScope(
+      Scope *S, Declarator &D, MultiTemplateParamsArg TemplateParameterLists,
+      SmallVectorImpl<FunctionDecl *> &Bases);
+
+  /// Register \p D as specialization of all base functions in \p Bases in the
+  /// current `omp begin/end declare variant` scope.
+  void ActOnFinishedFunctionDefinitionInOpenMPDeclareVariantScope(
+      Decl *D, SmallVectorImpl<FunctionDecl *> &Bases);
+
+  /// Act on \p D, a function definition inside of an `omp [begin/end] assumes`.
+  void ActOnFinishedFunctionDefinitionInOpenMPAssumeScope(Decl *D);
+
+  /// Can we exit an OpenMP declare variant scope at the moment.
+  bool isInOpenMPDeclareVariantScope() const {
+    return !OMPDeclareVariantScopes.empty();
+  }
+
+  ExprResult
+  VerifyPositiveIntegerConstantInClause(Expr *Op, OpenMPClauseKind CKind,
+                                        bool StrictlyPositive = true,
+                                        bool SuppressExprDiags = false);
+
+  /// Given the potential call expression \p Call, determine if there is a
+  /// specialization via the OpenMP declare variant mechanism available. If
+  /// there is, return the specialized call expression, otherwise return the
+  /// original \p Call.
+  ExprResult ActOnOpenMPCall(ExprResult Call, Scope *Scope,
+                             SourceLocation LParenLoc, MultiExprArg ArgExprs,
+                             SourceLocation RParenLoc, Expr *ExecConfig);
+
+  /// Handle a `omp begin declare variant`.
+  void ActOnOpenMPBeginDeclareVariant(SourceLocation Loc, OMPTraitInfo &TI);
+
+  /// Handle a `omp end declare variant`.
+  void ActOnOpenMPEndDeclareVariant();
+
+  /// Function tries to capture lambda's captured variables in the OpenMP region
+  /// before the original lambda is captured.
+  void tryCaptureOpenMPLambdas(ValueDecl *V);
+
+  /// Return true if the provided declaration \a VD should be captured by
+  /// reference.
+  /// \param Level Relative level of nested OpenMP construct for that the check
+  /// is performed.
+  /// \param OpenMPCaptureLevel Capture level within an OpenMP construct.
+  bool isOpenMPCapturedByRef(const ValueDecl *D, unsigned Level,
+                             unsigned OpenMPCaptureLevel) const;
+
+  /// Check if the specified variable is used in one of the private
+  /// clauses (private, firstprivate, lastprivate, reduction etc.) in OpenMP
+  /// constructs.
+  VarDecl *isOpenMPCapturedDecl(ValueDecl *D, bool CheckScopeInfo = false,
+                                unsigned StopAt = 0);
+
+  /// The member expression(this->fd) needs to be rebuilt in the template
+  /// instantiation to generate private copy for OpenMP when default
+  /// clause is used. The function will return true if default
+  /// cluse is used.
+  bool isOpenMPRebuildMemberExpr(ValueDecl *D);
+
+  ExprResult getOpenMPCapturedExpr(VarDecl *Capture, ExprValueKind VK,
+                                   ExprObjectKind OK, SourceLocation Loc);
+
+  /// If the current region is a loop-based region, mark the start of the loop
+  /// construct.
+  void startOpenMPLoop();
+
+  /// If the current region is a range loop-based region, mark the start of the
+  /// loop construct.
+  void startOpenMPCXXRangeFor();
+
+  /// Check if the specified variable is used in 'private' clause.
+  /// \param Level Relative level of nested OpenMP construct for that the check
+  /// is performed.
+  OpenMPClauseKind isOpenMPPrivateDecl(ValueDecl *D, unsigned Level,
+                                       unsigned CapLevel) const;
+
+  /// Sets OpenMP capture kind (OMPC_private, OMPC_firstprivate, OMPC_map etc.)
+  /// for \p FD based on DSA for the provided corresponding captured declaration
+  /// \p D.
+  void setOpenMPCaptureKind(FieldDecl *FD, const ValueDecl *D, unsigned Level);
+
+  /// Check if the specified variable is captured  by 'target' directive.
+  /// \param Level Relative level of nested OpenMP construct for that the check
+  /// is performed.
+  bool isOpenMPTargetCapturedDecl(const ValueDecl *D, unsigned Level,
+                                  unsigned CaptureLevel) const;
+
+  /// Check if the specified global variable must be captured  by outer capture
+  /// regions.
+  /// \param Level Relative level of nested OpenMP construct for that
+  /// the check is performed.
+  bool isOpenMPGlobalCapturedDecl(ValueDecl *D, unsigned Level,
+                                  unsigned CaptureLevel) const;
+
+  ExprResult PerformOpenMPImplicitIntegerConversion(SourceLocation OpLoc,
+                                                    Expr *Op);
+  /// Called on start of new data sharing attribute block.
+  void StartOpenMPDSABlock(OpenMPDirectiveKind K,
+                           const DeclarationNameInfo &DirName, Scope *CurScope,
+                           SourceLocation Loc);
+  /// Start analysis of clauses.
+  void StartOpenMPClause(OpenMPClauseKind K);
+  /// End analysis of clauses.
+  void EndOpenMPClause();
+  /// Called on end of data sharing attribute block.
+  void EndOpenMPDSABlock(Stmt *CurDirective);
+
+  /// Check if the current region is an OpenMP loop region and if it is,
+  /// mark loop control variable, used in \p Init for loop initialization, as
+  /// private by default.
+  /// \param Init First part of the for loop.
+  void ActOnOpenMPLoopInitialization(SourceLocation ForLoc, Stmt *Init);
+
+  /// Called on well-formed '\#pragma omp metadirective' after parsing
+  /// of the  associated statement.
+  StmtResult ActOnOpenMPMetaDirective(ArrayRef<OMPClause *> Clauses,
+                                      Stmt *AStmt, SourceLocation StartLoc,
+                                      SourceLocation EndLoc);
+
+  // OpenMP directives and clauses.
+  /// Called on correct id-expression from the '#pragma omp
+  /// threadprivate'.
+  ExprResult ActOnOpenMPIdExpression(Scope *CurScope, CXXScopeSpec &ScopeSpec,
+                                     const DeclarationNameInfo &Id,
+                                     OpenMPDirectiveKind Kind);
+  /// Called on well-formed '#pragma omp threadprivate'.
+  DeclGroupPtrTy ActOnOpenMPThreadprivateDirective(SourceLocation Loc,
+                                                   ArrayRef<Expr *> VarList);
+  /// Builds a new OpenMPThreadPrivateDecl and checks its correctness.
+  OMPThreadPrivateDecl *CheckOMPThreadPrivateDecl(SourceLocation Loc,
+                                                  ArrayRef<Expr *> VarList);
+  /// Called on well-formed '#pragma omp allocate'.
+  DeclGroupPtrTy ActOnOpenMPAllocateDirective(SourceLocation Loc,
+                                              ArrayRef<Expr *> VarList,
+                                              ArrayRef<OMPClause *> Clauses,
+                                              DeclContext *Owner = nullptr);
+
+  /// Called on well-formed '#pragma omp [begin] assume[s]'.
+  void ActOnOpenMPAssumesDirective(SourceLocation Loc,
+                                   OpenMPDirectiveKind DKind,
+                                   ArrayRef<std::string> Assumptions,
+                                   bool SkippedClauses);
+
+  /// Check if there is an active global `omp begin assumes` directive.
+  bool isInOpenMPAssumeScope() const { return !OMPAssumeScoped.empty(); }
+
+  /// Check if there is an active global `omp assumes` directive.
+  bool hasGlobalOpenMPAssumes() const { return !OMPAssumeGlobal.empty(); }
+
+  /// Called on well-formed '#pragma omp end assumes'.
+  void ActOnOpenMPEndAssumesDirective();
+
+  /// Called on well-formed '#pragma omp requires'.
+  DeclGroupPtrTy ActOnOpenMPRequiresDirective(SourceLocation Loc,
+                                              ArrayRef<OMPClause *> ClauseList);
+  /// Check restrictions on Requires directive
+  OMPRequiresDecl *CheckOMPRequiresDecl(SourceLocation Loc,
+                                        ArrayRef<OMPClause *> Clauses);
+  /// Check if the specified type is allowed to be used in 'omp declare
+  /// reduction' construct.
+  QualType ActOnOpenMPDeclareReductionType(SourceLocation TyLoc,
+                                           TypeResult ParsedType);
+  /// Called on start of '#pragma omp declare reduction'.
+  DeclGroupPtrTy ActOnOpenMPDeclareReductionDirectiveStart(
+      Scope *S, DeclContext *DC, DeclarationName Name,
+      ArrayRef<std::pair<QualType, SourceLocation>> ReductionTypes,
+      AccessSpecifier AS, Decl *PrevDeclInScope = nullptr);
+  /// Initialize declare reduction construct initializer.
+  void ActOnOpenMPDeclareReductionCombinerStart(Scope *S, Decl *D);
+  /// Finish current declare reduction construct initializer.
+  void ActOnOpenMPDeclareReductionCombinerEnd(Decl *D, Expr *Combiner);
+  /// Initialize declare reduction construct initializer.
+  /// \return omp_priv variable.
+  VarDecl *ActOnOpenMPDeclareReductionInitializerStart(Scope *S, Decl *D);
+  /// Finish current declare reduction construct initializer.
+  void ActOnOpenMPDeclareReductionInitializerEnd(Decl *D, Expr *Initializer,
+                                                 VarDecl *OmpPrivParm);
+  /// Called at the end of '#pragma omp declare reduction'.
+  DeclGroupPtrTy ActOnOpenMPDeclareReductionDirectiveEnd(
+      Scope *S, DeclGroupPtrTy DeclReductions, bool IsValid);
+
+  /// Check variable declaration in 'omp declare mapper' construct.
+  TypeResult ActOnOpenMPDeclareMapperVarDecl(Scope *S, Declarator &D);
+  /// Check if the specified type is allowed to be used in 'omp declare
+  /// mapper' construct.
+  QualType ActOnOpenMPDeclareMapperType(SourceLocation TyLoc,
+                                        TypeResult ParsedType);
+  /// Called on start of '#pragma omp declare mapper'.
+  DeclGroupPtrTy ActOnOpenMPDeclareMapperDirective(
+      Scope *S, DeclContext *DC, DeclarationName Name, QualType MapperType,
+      SourceLocation StartLoc, DeclarationName VN, AccessSpecifier AS,
+      Expr *MapperVarRef, ArrayRef<OMPClause *> Clauses,
+      Decl *PrevDeclInScope = nullptr);
+  /// Build the mapper variable of '#pragma omp declare mapper'.
+  ExprResult ActOnOpenMPDeclareMapperDirectiveVarDecl(Scope *S,
+                                                      QualType MapperType,
+                                                      SourceLocation StartLoc,
+                                                      DeclarationName VN);
+  void ActOnOpenMPIteratorVarDecl(VarDecl *VD);
+  bool isOpenMPDeclareMapperVarDeclAllowed(const VarDecl *VD) const;
+  const ValueDecl *getOpenMPDeclareMapperVarName() const;
+
+  struct DeclareTargetContextInfo {
+    struct MapInfo {
+      OMPDeclareTargetDeclAttr::MapTypeTy MT;
+      SourceLocation Loc;
+    };
+    /// Explicitly listed variables and functions in a 'to' or 'link' clause.
+    llvm::DenseMap<NamedDecl *, MapInfo> ExplicitlyMapped;
+
+    /// The 'device_type' as parsed from the clause.
+    OMPDeclareTargetDeclAttr::DevTypeTy DT = OMPDeclareTargetDeclAttr::DT_Any;
+
+    /// The directive kind, `begin declare target` or `declare target`.
+    OpenMPDirectiveKind Kind;
+
+    /// The directive with indirect clause.
+    std::optional<Expr *> Indirect;
+
+    /// The directive location.
+    SourceLocation Loc;
+
+    DeclareTargetContextInfo(OpenMPDirectiveKind Kind, SourceLocation Loc)
+        : Kind(Kind), Loc(Loc) {}
+  };
+
+  /// Called on the start of target region i.e. '#pragma omp declare target'.
+  bool ActOnStartOpenMPDeclareTargetContext(DeclareTargetContextInfo &DTCI);
+
+  /// Called at the end of target region i.e. '#pragma omp end declare target'.
+  const DeclareTargetContextInfo ActOnOpenMPEndDeclareTargetDirective();
+
+  /// Called once a target context is completed, that can be when a
+  /// '#pragma omp end declare target' was encountered or when a
+  /// '#pragma omp declare target' without declaration-definition-seq was
+  /// encountered.
+  void ActOnFinishedOpenMPDeclareTargetContext(DeclareTargetContextInfo &DTCI);
+
+  /// Report unterminated 'omp declare target' or 'omp begin declare target' at
+  /// the end of a compilation unit.
+  void DiagnoseUnterminatedOpenMPDeclareTarget();
+
+  /// Searches for the provided declaration name for OpenMP declare target
+  /// directive.
+  NamedDecl *lookupOpenMPDeclareTargetName(Scope *CurScope,
+                                           CXXScopeSpec &ScopeSpec,
+                                           const DeclarationNameInfo &Id);
+
+  /// Called on correct id-expression from the '#pragma omp declare target'.
+  void ActOnOpenMPDeclareTargetName(NamedDecl *ND, SourceLocation Loc,
+                                    OMPDeclareTargetDeclAttr::MapTypeTy MT,
+                                    DeclareTargetContextInfo &DTCI);
+
+  /// Check declaration inside target region.
+  void
+  checkDeclIsAllowedInOpenMPTarget(Expr *E, Decl *D,
+                                   SourceLocation IdLoc = SourceLocation());
+
+  /// Adds OMPDeclareTargetDeclAttr to referenced variables in declare target
+  /// directive.
+  void ActOnOpenMPDeclareTargetInitializer(Decl *D);
+
+  /// Finishes analysis of the deferred functions calls that may be declared as
+  /// host/nohost during device/host compilation.
+  void finalizeOpenMPDelayedAnalysis(const FunctionDecl *Caller,
+                                     const FunctionDecl *Callee,
+                                     SourceLocation Loc);
+
+  /// Return true if currently in OpenMP task with untied clause context.
+  bool isInOpenMPTaskUntiedContext() const;
+
+  /// Return true inside OpenMP declare target region.
+  bool isInOpenMPDeclareTargetContext() const {
+    return !DeclareTargetNesting.empty();
+  }
+  /// Return true inside OpenMP target region.
+  bool isInOpenMPTargetExecutionDirective() const;
+
+  /// Return the number of captured regions created for an OpenMP directive.
+  static int getOpenMPCaptureLevels(OpenMPDirectiveKind Kind);
+
+  /// Initialization of captured region for OpenMP region.
+  void ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope);
+
+  /// Called for syntactical loops (ForStmt or CXXForRangeStmt) associated to
+  /// an OpenMP loop directive.
+  StmtResult ActOnOpenMPCanonicalLoop(Stmt *AStmt);
+
+  /// Process a canonical OpenMP loop nest that can either be a canonical
+  /// literal loop (ForStmt or CXXForRangeStmt), or the generated loop of an
+  /// OpenMP loop transformation construct.
+  StmtResult ActOnOpenMPLoopnest(Stmt *AStmt);
+
+  /// End of OpenMP region.
+  ///
+  /// \param S Statement associated with the current OpenMP region.
+  /// \param Clauses List of clauses for the current OpenMP region.
+  ///
+  /// \returns Statement for finished OpenMP region.
+  StmtResult ActOnOpenMPRegionEnd(StmtResult S, ArrayRef<OMPClause *> Clauses);
+  StmtResult ActOnOpenMPExecutableDirective(
+      OpenMPDirectiveKind Kind, const DeclarationNameInfo &DirName,
+      OpenMPDirectiveKind CancelRegion, ArrayRef<OMPClause *> Clauses,
+      Stmt *AStmt, SourceLocation StartLoc, SourceLocation EndLoc,
+      OpenMPDirectiveKind PrevMappedDirective = llvm::omp::OMPD_unknown);
+  /// Called on well-formed '\#pragma omp parallel' after parsing
+  /// of the  associated statement.
+  StmtResult ActOnOpenMPParallelDirective(ArrayRef<OMPClause *> Clauses,
+                                          Stmt *AStmt, SourceLocation StartLoc,
+                                          SourceLocation EndLoc);
+  using VarsWithInheritedDSAType =
+      llvm::SmallDenseMap<const ValueDecl *, const Expr *, 4>;
+  /// Called on well-formed '\#pragma omp simd' after parsing
+  /// of the associated statement.
+  StmtResult
+  ActOnOpenMPSimdDirective(ArrayRef<OMPClause *> Clauses, Stmt *AStmt,
+                           SourceLocation StartLoc, SourceLocation EndLoc,
+                           VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '#pragma omp tile' after parsing of its clauses and
+  /// the associated statement.
+  StmtResult ActOnOpenMPTileDirective(ArrayRef<OMPClause *> Clauses,
+                                      Stmt *AStmt, SourceLocation StartLoc,
+                                      SourceLocation EndLoc);
+  /// Called on well-formed '#pragma omp unroll' after parsing of its clauses
+  /// and the associated statement.
+  StmtResult ActOnOpenMPUnrollDirective(ArrayRef<OMPClause *> Clauses,
+                                        Stmt *AStmt, SourceLocation StartLoc,
+                                        SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp for' after parsing
+  /// of the associated statement.
+  StmtResult
+  ActOnOpenMPForDirective(ArrayRef<OMPClause *> Clauses, Stmt *AStmt,
+                          SourceLocation StartLoc, SourceLocation EndLoc,
+                          VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp for simd' after parsing
+  /// of the associated statement.
+  StmtResult
+  ActOnOpenMPForSimdDirective(ArrayRef<OMPClause *> Clauses, Stmt *AStmt,
+                              SourceLocation StartLoc, SourceLocation EndLoc,
+                              VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp sections' after parsing
+  /// of the associated statement.
+  StmtResult ActOnOpenMPSectionsDirective(ArrayRef<OMPClause *> Clauses,
+                                          Stmt *AStmt, SourceLocation StartLoc,
+                                          SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp section' after parsing of the
+  /// associated statement.
+  StmtResult ActOnOpenMPSectionDirective(Stmt *AStmt, SourceLocation StartLoc,
+                                         SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp scope' after parsing of the
+  /// associated statement.
+  StmtResult ActOnOpenMPScopeDirective(ArrayRef<OMPClause *> Clauses,
+                                       Stmt *AStmt, SourceLocation StartLoc,
+                                       SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp single' after parsing of the
+  /// associated statement.
+  StmtResult ActOnOpenMPSingleDirective(ArrayRef<OMPClause *> Clauses,
+                                        Stmt *AStmt, SourceLocation StartLoc,
+                                        SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp master' after parsing of the
+  /// associated statement.
+  StmtResult ActOnOpenMPMasterDirective(Stmt *AStmt, SourceLocation StartLoc,
+                                        SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp critical' after parsing of the
+  /// associated statement.
+  StmtResult ActOnOpenMPCriticalDirective(const DeclarationNameInfo &DirName,
+                                          ArrayRef<OMPClause *> Clauses,
+                                          Stmt *AStmt, SourceLocation StartLoc,
+                                          SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp parallel for' after parsing
+  /// of the  associated statement.
+  StmtResult ActOnOpenMPParallelForDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp parallel for simd' after
+  /// parsing of the  associated statement.
+  StmtResult ActOnOpenMPParallelForSimdDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp parallel master' after
+  /// parsing of the  associated statement.
+  StmtResult ActOnOpenMPParallelMasterDirective(ArrayRef<OMPClause *> Clauses,
+                                                Stmt *AStmt,
+                                                SourceLocation StartLoc,
+                                                SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp parallel masked' after
+  /// parsing of the associated statement.
+  StmtResult ActOnOpenMPParallelMaskedDirective(ArrayRef<OMPClause *> Clauses,
+                                                Stmt *AStmt,
+                                                SourceLocation StartLoc,
+                                                SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp parallel sections' after
+  /// parsing of the  associated statement.
+  StmtResult ActOnOpenMPParallelSectionsDirective(ArrayRef<OMPClause *> Clauses,
+                                                  Stmt *AStmt,
+                                                  SourceLocation StartLoc,
+                                                  SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp task' after parsing of the
+  /// associated statement.
+  StmtResult ActOnOpenMPTaskDirective(ArrayRef<OMPClause *> Clauses,
+                                      Stmt *AStmt, SourceLocation StartLoc,
+                                      SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp taskyield'.
+  StmtResult ActOnOpenMPTaskyieldDirective(SourceLocation StartLoc,
+                                           SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp error'.
+  /// Error direcitive is allowed in both declared and excutable contexts.
+  /// Adding InExContext to identify which context is called from.
+  StmtResult ActOnOpenMPErrorDirective(ArrayRef<OMPClause *> Clauses,
+                                       SourceLocation StartLoc,
+                                       SourceLocation EndLoc,
+                                       bool InExContext = true);
+  /// Called on well-formed '\#pragma omp barrier'.
+  StmtResult ActOnOpenMPBarrierDirective(SourceLocation StartLoc,
+                                         SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp taskwait'.
+  StmtResult ActOnOpenMPTaskwaitDirective(ArrayRef<OMPClause *> Clauses,
+                                          SourceLocation StartLoc,
+                                          SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp taskgroup'.
+  StmtResult ActOnOpenMPTaskgroupDirective(ArrayRef<OMPClause *> Clauses,
+                                           Stmt *AStmt, SourceLocation StartLoc,
+                                           SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp flush'.
+  StmtResult ActOnOpenMPFlushDirective(ArrayRef<OMPClause *> Clauses,
+                                       SourceLocation StartLoc,
+                                       SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp depobj'.
+  StmtResult ActOnOpenMPDepobjDirective(ArrayRef<OMPClause *> Clauses,
+                                        SourceLocation StartLoc,
+                                        SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp scan'.
+  StmtResult ActOnOpenMPScanDirective(ArrayRef<OMPClause *> Clauses,
+                                      SourceLocation StartLoc,
+                                      SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp ordered' after parsing of the
+  /// associated statement.
+  StmtResult ActOnOpenMPOrderedDirective(ArrayRef<OMPClause *> Clauses,
+                                         Stmt *AStmt, SourceLocation StartLoc,
+                                         SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp atomic' after parsing of the
+  /// associated statement.
+  StmtResult ActOnOpenMPAtomicDirective(ArrayRef<OMPClause *> Clauses,
+                                        Stmt *AStmt, SourceLocation StartLoc,
+                                        SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp target' after parsing of the
+  /// associated statement.
+  StmtResult ActOnOpenMPTargetDirective(ArrayRef<OMPClause *> Clauses,
+                                        Stmt *AStmt, SourceLocation StartLoc,
+                                        SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp target data' after parsing of
+  /// the associated statement.
+  StmtResult ActOnOpenMPTargetDataDirective(ArrayRef<OMPClause *> Clauses,
+                                            Stmt *AStmt,
+                                            SourceLocation StartLoc,
+                                            SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp target enter data' after
+  /// parsing of the associated statement.
+  StmtResult ActOnOpenMPTargetEnterDataDirective(ArrayRef<OMPClause *> Clauses,
+                                                 SourceLocation StartLoc,
+                                                 SourceLocation EndLoc,
+                                                 Stmt *AStmt);
+  /// Called on well-formed '\#pragma omp target exit data' after
+  /// parsing of the associated statement.
+  StmtResult ActOnOpenMPTargetExitDataDirective(ArrayRef<OMPClause *> Clauses,
+                                                SourceLocation StartLoc,
+                                                SourceLocation EndLoc,
+                                                Stmt *AStmt);
+  /// Called on well-formed '\#pragma omp target parallel' after
+  /// parsing of the associated statement.
+  StmtResult ActOnOpenMPTargetParallelDirective(ArrayRef<OMPClause *> Clauses,
+                                                Stmt *AStmt,
+                                                SourceLocation StartLoc,
+                                                SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp target parallel for' after
+  /// parsing of the  associated statement.
+  StmtResult ActOnOpenMPTargetParallelForDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp teams' after parsing of the
+  /// associated statement.
+  StmtResult ActOnOpenMPTeamsDirective(ArrayRef<OMPClause *> Clauses,
+                                       Stmt *AStmt, SourceLocation StartLoc,
+                                       SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp teams loop' after parsing of the
+  /// associated statement.
+  StmtResult ActOnOpenMPTeamsGenericLoopDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp target teams loop' after parsing of
+  /// the associated statement.
+  StmtResult ActOnOpenMPTargetTeamsGenericLoopDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp parallel loop' after parsing of the
+  /// associated statement.
+  StmtResult ActOnOpenMPParallelGenericLoopDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp target parallel loop' after parsing
+  /// of the associated statement.
+  StmtResult ActOnOpenMPTargetParallelGenericLoopDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp cancellation point'.
+  StmtResult
+  ActOnOpenMPCancellationPointDirective(SourceLocation StartLoc,
+                                        SourceLocation EndLoc,
+                                        OpenMPDirectiveKind CancelRegion);
+  /// Called on well-formed '\#pragma omp cancel'.
+  StmtResult ActOnOpenMPCancelDirective(ArrayRef<OMPClause *> Clauses,
+                                        SourceLocation StartLoc,
+                                        SourceLocation EndLoc,
+                                        OpenMPDirectiveKind CancelRegion);
+  /// Called on well-formed '\#pragma omp taskloop' after parsing of the
+  /// associated statement.
+  StmtResult
+  ActOnOpenMPTaskLoopDirective(ArrayRef<OMPClause *> Clauses, Stmt *AStmt,
+                               SourceLocation StartLoc, SourceLocation EndLoc,
+                               VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp taskloop simd' after parsing of
+  /// the associated statement.
+  StmtResult ActOnOpenMPTaskLoopSimdDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp master taskloop' after parsing of the
+  /// associated statement.
+  StmtResult ActOnOpenMPMasterTaskLoopDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp master taskloop simd' after parsing of
+  /// the associated statement.
+  StmtResult ActOnOpenMPMasterTaskLoopSimdDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp parallel master taskloop' after
+  /// parsing of the associated statement.
+  StmtResult ActOnOpenMPParallelMasterTaskLoopDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp parallel master taskloop simd' after
+  /// parsing of the associated statement.
+  StmtResult ActOnOpenMPParallelMasterTaskLoopSimdDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp masked taskloop' after parsing of the
+  /// associated statement.
+  StmtResult ActOnOpenMPMaskedTaskLoopDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp masked taskloop simd' after parsing of
+  /// the associated statement.
+  StmtResult ActOnOpenMPMaskedTaskLoopSimdDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp parallel masked taskloop' after
+  /// parsing of the associated statement.
+  StmtResult ActOnOpenMPParallelMaskedTaskLoopDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp parallel masked taskloop simd' after
+  /// parsing of the associated statement.
+  StmtResult ActOnOpenMPParallelMaskedTaskLoopSimdDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp distribute' after parsing
+  /// of the associated statement.
+  StmtResult
+  ActOnOpenMPDistributeDirective(ArrayRef<OMPClause *> Clauses, Stmt *AStmt,
+                                 SourceLocation StartLoc, SourceLocation EndLoc,
+                                 VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp target update'.
+  StmtResult ActOnOpenMPTargetUpdateDirective(ArrayRef<OMPClause *> Clauses,
+                                              SourceLocation StartLoc,
+                                              SourceLocation EndLoc,
+                                              Stmt *AStmt);
+  /// Called on well-formed '\#pragma omp distribute parallel for' after
+  /// parsing of the associated statement.
+  StmtResult ActOnOpenMPDistributeParallelForDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp distribute parallel for simd'
+  /// after parsing of the associated statement.
+  StmtResult ActOnOpenMPDistributeParallelForSimdDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp distribute simd' after
+  /// parsing of the associated statement.
+  StmtResult ActOnOpenMPDistributeSimdDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp target parallel for simd' after
+  /// parsing of the associated statement.
+  StmtResult ActOnOpenMPTargetParallelForSimdDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp target simd' after parsing of
+  /// the associated statement.
+  StmtResult
+  ActOnOpenMPTargetSimdDirective(ArrayRef<OMPClause *> Clauses, Stmt *AStmt,
+                                 SourceLocation StartLoc, SourceLocation EndLoc,
+                                 VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp teams distribute' after parsing of
+  /// the associated statement.
+  StmtResult ActOnOpenMPTeamsDistributeDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp teams distribute simd' after parsing
+  /// of the associated statement.
+  StmtResult ActOnOpenMPTeamsDistributeSimdDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp teams distribute parallel for simd'
+  /// after parsing of the associated statement.
+  StmtResult ActOnOpenMPTeamsDistributeParallelForSimdDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp teams distribute parallel for'
+  /// after parsing of the associated statement.
+  StmtResult ActOnOpenMPTeamsDistributeParallelForDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp target teams' after parsing of the
+  /// associated statement.
+  StmtResult ActOnOpenMPTargetTeamsDirective(ArrayRef<OMPClause *> Clauses,
+                                             Stmt *AStmt,
+                                             SourceLocation StartLoc,
+                                             SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp target teams distribute' after parsing
+  /// of the associated statement.
+  StmtResult ActOnOpenMPTargetTeamsDistributeDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp target teams distribute parallel for'
+  /// after parsing of the associated statement.
+  StmtResult ActOnOpenMPTargetTeamsDistributeParallelForDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp target teams distribute parallel for
+  /// simd' after parsing of the associated statement.
+  StmtResult ActOnOpenMPTargetTeamsDistributeParallelForSimdDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp target teams distribute simd' after
+  /// parsing of the associated statement.
+  StmtResult ActOnOpenMPTargetTeamsDistributeSimdDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+  /// Called on well-formed '\#pragma omp interop'.
+  StmtResult ActOnOpenMPInteropDirective(ArrayRef<OMPClause *> Clauses,
+                                         SourceLocation StartLoc,
+                                         SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp dispatch' after parsing of the
+  // /associated statement.
+  StmtResult ActOnOpenMPDispatchDirective(ArrayRef<OMPClause *> Clauses,
+                                          Stmt *AStmt, SourceLocation StartLoc,
+                                          SourceLocation EndLoc);
+  /// Called on well-formed '\#pragma omp masked' after parsing of the
+  // /associated statement.
+  StmtResult ActOnOpenMPMaskedDirective(ArrayRef<OMPClause *> Clauses,
+                                        Stmt *AStmt, SourceLocation StartLoc,
+                                        SourceLocation EndLoc);
+
+  /// Called on well-formed '\#pragma omp loop' after parsing of the
+  /// associated statement.
+  StmtResult ActOnOpenMPGenericLoopDirective(
+      ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+      SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA);
+
+  /// Checks correctness of linear modifiers.
+  bool CheckOpenMPLinearModifier(OpenMPLinearClauseKind LinKind,
+                                 SourceLocation LinLoc);
+  /// Checks that the specified declaration matches requirements for the linear
+  /// decls.
+  bool CheckOpenMPLinearDecl(const ValueDecl *D, SourceLocation ELoc,
+                             OpenMPLinearClauseKind LinKind, QualType Type,
+                             bool IsDeclareSimd = false);
+
+  /// Called on well-formed '\#pragma omp declare simd' after parsing of
+  /// the associated method/function.
+  DeclGroupPtrTy ActOnOpenMPDeclareSimdDirective(
+      DeclGroupPtrTy DG, OMPDeclareSimdDeclAttr::BranchStateTy BS,
+      Expr *Simdlen, ArrayRef<Expr *> Uniforms, ArrayRef<Expr *> Aligneds,
+      ArrayRef<Expr *> Alignments, ArrayRef<Expr *> Linears,
+      ArrayRef<unsigned> LinModifiers, ArrayRef<Expr *> Steps, SourceRange SR);
+
+  /// Checks '\#pragma omp declare variant' variant function and original
+  /// functions after parsing of the associated method/function.
+  /// \param DG Function declaration to which declare variant directive is
+  /// applied to.
+  /// \param VariantRef Expression that references the variant function, which
+  /// must be used instead of the original one, specified in \p DG.
+  /// \param TI The trait info object representing the match clause.
+  /// \param NumAppendArgs The number of omp_interop_t arguments to account for
+  /// in checking.
+  /// \returns std::nullopt, if the function/variant function are not compatible
+  /// with the pragma, pair of original function/variant ref expression
+  /// otherwise.
+  std::optional<std::pair<FunctionDecl *, Expr *>>
+  checkOpenMPDeclareVariantFunction(DeclGroupPtrTy DG, Expr *VariantRef,
+                                    OMPTraitInfo &TI, unsigned NumAppendArgs,
+                                    SourceRange SR);
+
+  /// Called on well-formed '\#pragma omp declare variant' after parsing of
+  /// the associated method/function.
+  /// \param FD Function declaration to which declare variant directive is
+  /// applied to.
+  /// \param VariantRef Expression that references the variant function, which
+  /// must be used instead of the original one, specified in \p DG.
+  /// \param TI The context traits associated with the function variant.
+  /// \param AdjustArgsNothing The list of 'nothing' arguments.
+  /// \param AdjustArgsNeedDevicePtr The list of 'need_device_ptr' arguments.
+  /// \param AppendArgs The list of 'append_args' arguments.
+  /// \param AdjustArgsLoc The Location of an 'adjust_args' clause.
+  /// \param AppendArgsLoc The Location of an 'append_args' clause.
+  /// \param SR The SourceRange of the 'declare variant' directive.
+  void ActOnOpenMPDeclareVariantDirective(
+      FunctionDecl *FD, Expr *VariantRef, OMPTraitInfo &TI,
+      ArrayRef<Expr *> AdjustArgsNothing,
+      ArrayRef<Expr *> AdjustArgsNeedDevicePtr,
+      ArrayRef<OMPInteropInfo> AppendArgs, SourceLocation AdjustArgsLoc,
+      SourceLocation AppendArgsLoc, SourceRange SR);
+
+  OMPClause *ActOnOpenMPSingleExprClause(OpenMPClauseKind Kind, Expr *Expr,
+                                         SourceLocation StartLoc,
+                                         SourceLocation LParenLoc,
+                                         SourceLocation EndLoc);
+  /// Called on well-formed 'allocator' clause.
+  OMPClause *ActOnOpenMPAllocatorClause(Expr *Allocator,
+                                        SourceLocation StartLoc,
+                                        SourceLocation LParenLoc,
+                                        SourceLocation EndLoc);
+  /// Called on well-formed 'if' clause.
+  OMPClause *ActOnOpenMPIfClause(OpenMPDirectiveKind NameModifier,
+                                 Expr *Condition, SourceLocation StartLoc,
+                                 SourceLocation LParenLoc,
+                                 SourceLocation NameModifierLoc,
+                                 SourceLocation ColonLoc,
+                                 SourceLocation EndLoc);
+  /// Called on well-formed 'final' clause.
+  OMPClause *ActOnOpenMPFinalClause(Expr *Condition, SourceLocation StartLoc,
+                                    SourceLocation LParenLoc,
+                                    SourceLocation EndLoc);
+  /// Called on well-formed 'num_threads' clause.
+  OMPClause *ActOnOpenMPNumThreadsClause(Expr *NumThreads,
+                                         SourceLocation StartLoc,
+                                         SourceLocation LParenLoc,
+                                         SourceLocation EndLoc);
+  /// Called on well-formed 'align' clause.
+  OMPClause *ActOnOpenMPAlignClause(Expr *Alignment, SourceLocation StartLoc,
+                                    SourceLocation LParenLoc,
+                                    SourceLocation EndLoc);
+  /// Called on well-formed 'safelen' clause.
+  OMPClause *ActOnOpenMPSafelenClause(Expr *Length, SourceLocation StartLoc,
+                                      SourceLocation LParenLoc,
+                                      SourceLocation EndLoc);
+  /// Called on well-formed 'simdlen' clause.
+  OMPClause *ActOnOpenMPSimdlenClause(Expr *Length, SourceLocation StartLoc,
+                                      SourceLocation LParenLoc,
+                                      SourceLocation EndLoc);
+  /// Called on well-form 'sizes' clause.
+  OMPClause *ActOnOpenMPSizesClause(ArrayRef<Expr *> SizeExprs,
+                                    SourceLocation StartLoc,
+                                    SourceLocation LParenLoc,
+                                    SourceLocation EndLoc);
+  /// Called on well-form 'full' clauses.
+  OMPClause *ActOnOpenMPFullClause(SourceLocation StartLoc,
+                                   SourceLocation EndLoc);
+  /// Called on well-form 'partial' clauses.
+  OMPClause *ActOnOpenMPPartialClause(Expr *FactorExpr, SourceLocation StartLoc,
+                                      SourceLocation LParenLoc,
+                                      SourceLocation EndLoc);
+  /// Called on well-formed 'collapse' clause.
+  OMPClause *ActOnOpenMPCollapseClause(Expr *NumForLoops,
+                                       SourceLocation StartLoc,
+                                       SourceLocation LParenLoc,
+                                       SourceLocation EndLoc);
+  /// Called on well-formed 'ordered' clause.
+  OMPClause *
+  ActOnOpenMPOrderedClause(SourceLocation StartLoc, SourceLocation EndLoc,
+                           SourceLocation LParenLoc = SourceLocation(),
+                           Expr *NumForLoops = nullptr);
+  /// Called on well-formed 'grainsize' clause.
+  OMPClause *ActOnOpenMPGrainsizeClause(OpenMPGrainsizeClauseModifier Modifier,
+                                        Expr *Size, SourceLocation StartLoc,
+                                        SourceLocation LParenLoc,
+                                        SourceLocation ModifierLoc,
+                                        SourceLocation EndLoc);
+  /// Called on well-formed 'num_tasks' clause.
+  OMPClause *ActOnOpenMPNumTasksClause(OpenMPNumTasksClauseModifier Modifier,
+                                       Expr *NumTasks, SourceLocation StartLoc,
+                                       SourceLocation LParenLoc,
+                                       SourceLocation ModifierLoc,
+                                       SourceLocation EndLoc);
+  /// Called on well-formed 'hint' clause.
+  OMPClause *ActOnOpenMPHintClause(Expr *Hint, SourceLocation StartLoc,
+                                   SourceLocation LParenLoc,
+                                   SourceLocation EndLoc);
+  /// Called on well-formed 'detach' clause.
+  OMPClause *ActOnOpenMPDetachClause(Expr *Evt, SourceLocation StartLoc,
+                                     SourceLocation LParenLoc,
+                                     SourceLocation EndLoc);
+
+  OMPClause *ActOnOpenMPSimpleClause(OpenMPClauseKind Kind, unsigned Argument,
+                                     SourceLocation ArgumentLoc,
+                                     SourceLocation StartLoc,
+                                     SourceLocation LParenLoc,
+                                     SourceLocation EndLoc);
+  /// Called on well-formed 'when' clause.
+  OMPClause *ActOnOpenMPWhenClause(OMPTraitInfo &TI, SourceLocation StartLoc,
+                                   SourceLocation LParenLoc,
+                                   SourceLocation EndLoc);
+  /// Called on well-formed 'default' clause.
+  OMPClause *ActOnOpenMPDefaultClause(llvm::omp::DefaultKind Kind,
+                                      SourceLocation KindLoc,
+                                      SourceLocation StartLoc,
+                                      SourceLocation LParenLoc,
+                                      SourceLocation EndLoc);
+  /// Called on well-formed 'proc_bind' clause.
+  OMPClause *ActOnOpenMPProcBindClause(llvm::omp::ProcBindKind Kind,
+                                       SourceLocation KindLoc,
+                                       SourceLocation StartLoc,
+                                       SourceLocation LParenLoc,
+                                       SourceLocation EndLoc);
+  /// Called on well-formed 'order' clause.
+  OMPClause *ActOnOpenMPOrderClause(OpenMPOrderClauseModifier Modifier,
+                                    OpenMPOrderClauseKind Kind,
+                                    SourceLocation StartLoc,
+                                    SourceLocation LParenLoc,
+                                    SourceLocation MLoc, SourceLocation KindLoc,
+                                    SourceLocation EndLoc);
+  /// Called on well-formed 'update' clause.
+  OMPClause *ActOnOpenMPUpdateClause(OpenMPDependClauseKind Kind,
+                                     SourceLocation KindLoc,
+                                     SourceLocation StartLoc,
+                                     SourceLocation LParenLoc,
+                                     SourceLocation EndLoc);
+
+  OMPClause *ActOnOpenMPSingleExprWithArgClause(
+      OpenMPClauseKind Kind, ArrayRef<unsigned> Arguments, Expr *Expr,
+      SourceLocation StartLoc, SourceLocation LParenLoc,
+      ArrayRef<SourceLocation> ArgumentsLoc, SourceLocation DelimLoc,
+      SourceLocation EndLoc);
+  /// Called on well-formed 'schedule' clause.
+  OMPClause *ActOnOpenMPScheduleClause(
+      OpenMPScheduleClauseModifier M1, OpenMPScheduleClauseModifier M2,
+      OpenMPScheduleClauseKind Kind, Expr *ChunkSize, SourceLocation StartLoc,
+      SourceLocation LParenLoc, SourceLocation M1Loc, SourceLocation M2Loc,
+      SourceLocation KindLoc, SourceLocation CommaLoc, SourceLocation EndLoc);
+
+  OMPClause *ActOnOpenMPClause(OpenMPClauseKind Kind, SourceLocation StartLoc,
+                               SourceLocation EndLoc);
+  /// Called on well-formed 'nowait' clause.
+  OMPClause *ActOnOpenMPNowaitClause(SourceLocation StartLoc,
+                                     SourceLocation EndLoc);
+  /// Called on well-formed 'untied' clause.
+  OMPClause *ActOnOpenMPUntiedClause(SourceLocation StartLoc,
+                                     SourceLocation EndLoc);
+  /// Called on well-formed 'mergeable' clause.
+  OMPClause *ActOnOpenMPMergeableClause(SourceLocation StartLoc,
+                                        SourceLocation EndLoc);
+  /// Called on well-formed 'read' clause.
+  OMPClause *ActOnOpenMPReadClause(SourceLocation StartLoc,
+                                   SourceLocation EndLoc);
+  /// Called on well-formed 'write' clause.
+  OMPClause *ActOnOpenMPWriteClause(SourceLocation StartLoc,
+                                    SourceLocation EndLoc);
+  /// Called on well-formed 'update' clause.
+  OMPClause *ActOnOpenMPUpdateClause(SourceLocation StartLoc,
+                                     SourceLocation EndLoc);
+  /// Called on well-formed 'capture' clause.
+  OMPClause *ActOnOpenMPCaptureClause(SourceLocation StartLoc,
+                                      SourceLocation EndLoc);
+  /// Called on well-formed 'compare' clause.
+  OMPClause *ActOnOpenMPCompareClause(SourceLocation StartLoc,
+                                      SourceLocation EndLoc);
+  /// Called on well-formed 'fail' clause.
+  OMPClause *ActOnOpenMPFailClause(SourceLocation StartLoc,
+                                   SourceLocation EndLoc);
+  OMPClause *ActOnOpenMPFailClause(OpenMPClauseKind Kind,
+                                   SourceLocation KindLoc,
+                                   SourceLocation StartLoc,
+                                   SourceLocation LParenLoc,
+                                   SourceLocation EndLoc);
+
+  /// Called on well-formed 'seq_cst' clause.
+  OMPClause *ActOnOpenMPSeqCstClause(SourceLocation StartLoc,
+                                     SourceLocation EndLoc);
+  /// Called on well-formed 'acq_rel' clause.
+  OMPClause *ActOnOpenMPAcqRelClause(SourceLocation StartLoc,
+                                     SourceLocation EndLoc);
+  /// Called on well-formed 'acquire' clause.
+  OMPClause *ActOnOpenMPAcquireClause(SourceLocation StartLoc,
+                                      SourceLocation EndLoc);
+  /// Called on well-formed 'release' clause.
+  OMPClause *ActOnOpenMPReleaseClause(SourceLocation StartLoc,
+                                      SourceLocation EndLoc);
+  /// Called on well-formed 'relaxed' clause.
+  OMPClause *ActOnOpenMPRelaxedClause(SourceLocation StartLoc,
+                                      SourceLocation EndLoc);
+  /// Called on well-formed 'weak' clause.
+  OMPClause *ActOnOpenMPWeakClause(SourceLocation StartLoc,
+                                   SourceLocation EndLoc);
+
+  /// Called on well-formed 'init' clause.
+  OMPClause *
+  ActOnOpenMPInitClause(Expr *InteropVar, OMPInteropInfo &InteropInfo,
+                        SourceLocation StartLoc, SourceLocation LParenLoc,
+                        SourceLocation VarLoc, SourceLocation EndLoc);
+
+  /// Called on well-formed 'use' clause.
+  OMPClause *ActOnOpenMPUseClause(Expr *InteropVar, SourceLocation StartLoc,
+                                  SourceLocation LParenLoc,
+                                  SourceLocation VarLoc, SourceLocation EndLoc);
+
+  /// Called on well-formed 'destroy' clause.
+  OMPClause *ActOnOpenMPDestroyClause(Expr *InteropVar, SourceLocation StartLoc,
+                                      SourceLocation LParenLoc,
+                                      SourceLocation VarLoc,
+                                      SourceLocation EndLoc);
+  /// Called on well-formed 'novariants' clause.
+  OMPClause *ActOnOpenMPNovariantsClause(Expr *Condition,
+                                         SourceLocation StartLoc,
+                                         SourceLocation LParenLoc,
+                                         SourceLocation EndLoc);
+  /// Called on well-formed 'nocontext' clause.
+  OMPClause *ActOnOpenMPNocontextClause(Expr *Condition,
+                                        SourceLocation StartLoc,
+                                        SourceLocation LParenLoc,
+                                        SourceLocation EndLoc);
+  /// Called on well-formed 'filter' clause.
+  OMPClause *ActOnOpenMPFilterClause(Expr *ThreadID, SourceLocation StartLoc,
+                                     SourceLocation LParenLoc,
+                                     SourceLocation EndLoc);
+  /// Called on well-formed 'threads' clause.
+  OMPClause *ActOnOpenMPThreadsClause(SourceLocation StartLoc,
+                                      SourceLocation EndLoc);
+  /// Called on well-formed 'simd' clause.
+  OMPClause *ActOnOpenMPSIMDClause(SourceLocation StartLoc,
+                                   SourceLocation EndLoc);
+  /// Called on well-formed 'nogroup' clause.
+  OMPClause *ActOnOpenMPNogroupClause(SourceLocation StartLoc,
+                                      SourceLocation EndLoc);
+  /// Called on well-formed 'unified_address' clause.
+  OMPClause *ActOnOpenMPUnifiedAddressClause(SourceLocation StartLoc,
+                                             SourceLocation EndLoc);
+
+  /// Called on well-formed 'unified_address' clause.
+  OMPClause *ActOnOpenMPUnifiedSharedMemoryClause(SourceLocation StartLoc,
+                                                  SourceLocation EndLoc);
+
+  /// Called on well-formed 'reverse_offload' clause.
+  OMPClause *ActOnOpenMPReverseOffloadClause(SourceLocation StartLoc,
+                                             SourceLocation EndLoc);
+
+  /// Called on well-formed 'dynamic_allocators' clause.
+  OMPClause *ActOnOpenMPDynamicAllocatorsClause(SourceLocation StartLoc,
+                                                SourceLocation EndLoc);
+
+  /// Called on well-formed 'atomic_default_mem_order' clause.
+  OMPClause *ActOnOpenMPAtomicDefaultMemOrderClause(
+      OpenMPAtomicDefaultMemOrderClauseKind Kind, SourceLocation KindLoc,
+      SourceLocation StartLoc, SourceLocation LParenLoc, SourceLocation EndLoc);
+
+  /// Called on well-formed 'at' clause.
+  OMPClause *ActOnOpenMPAtClause(OpenMPAtClauseKind Kind,
+                                 SourceLocation KindLoc,
+                                 SourceLocation StartLoc,
+                                 SourceLocation LParenLoc,
+                                 SourceLocation EndLoc);
+
+  /// Called on well-formed 'severity' clause.
+  OMPClause *ActOnOpenMPSeverityClause(OpenMPSeverityClauseKind Kind,
+                                       SourceLocation KindLoc,
+                                       SourceLocation StartLoc,
+                                       SourceLocation LParenLoc,
+                                       SourceLocation EndLoc);
+
+  /// Called on well-formed 'message' clause.
+  /// passing string for message.
+  OMPClause *ActOnOpenMPMessageClause(Expr *MS, SourceLocation StartLoc,
+                                      SourceLocation LParenLoc,
+                                      SourceLocation EndLoc);
+
+  /// Data used for processing a list of variables in OpenMP clauses.
+  struct OpenMPVarListDataTy final {
+    Expr *DepModOrTailExpr = nullptr;
+    Expr *IteratorExpr = nullptr;
+    SourceLocation ColonLoc;
+    SourceLocation RLoc;
+    CXXScopeSpec ReductionOrMapperIdScopeSpec;
+    DeclarationNameInfo ReductionOrMapperId;
+    int ExtraModifier = -1; ///< Additional modifier for linear, map, depend or
+                            ///< lastprivate clause.
+    SmallVector<OpenMPMapModifierKind, NumberOfOMPMapClauseModifiers>
+        MapTypeModifiers;
+    SmallVector<SourceLocation, NumberOfOMPMapClauseModifiers>
+        MapTypeModifiersLoc;
+    SmallVector<OpenMPMotionModifierKind, NumberOfOMPMotionModifiers>
+        MotionModifiers;
+    SmallVector<SourceLocation, NumberOfOMPMotionModifiers> MotionModifiersLoc;
+    bool IsMapTypeImplicit = false;
+    SourceLocation ExtraModifierLoc;
+    SourceLocation OmpAllMemoryLoc;
+    SourceLocation
+        StepModifierLoc; /// 'step' modifier location for linear clause
+  };
+
+  OMPClause *ActOnOpenMPVarListClause(OpenMPClauseKind Kind,
+                                      ArrayRef<Expr *> Vars,
+                                      const OMPVarListLocTy &Locs,
+                                      OpenMPVarListDataTy &Data);
+  /// Called on well-formed 'inclusive' clause.
+  OMPClause *ActOnOpenMPInclusiveClause(ArrayRef<Expr *> VarList,
+                                        SourceLocation StartLoc,
+                                        SourceLocation LParenLoc,
+                                        SourceLocation EndLoc);
+  /// Called on well-formed 'exclusive' clause.
+  OMPClause *ActOnOpenMPExclusiveClause(ArrayRef<Expr *> VarList,
+                                        SourceLocation StartLoc,
+                                        SourceLocation LParenLoc,
+                                        SourceLocation EndLoc);
+  /// Called on well-formed 'allocate' clause.
+  OMPClause *
+  ActOnOpenMPAllocateClause(Expr *Allocator, ArrayRef<Expr *> VarList,
+                            SourceLocation StartLoc, SourceLocation ColonLoc,
+                            SourceLocation LParenLoc, SourceLocation EndLoc);
+  /// Called on well-formed 'private' clause.
+  OMPClause *ActOnOpenMPPrivateClause(ArrayRef<Expr *> VarList,
+                                      SourceLocation StartLoc,
+                                      SourceLocation LParenLoc,
+                                      SourceLocation EndLoc);
+  /// Called on well-formed 'firstprivate' clause.
+  OMPClause *ActOnOpenMPFirstprivateClause(ArrayRef<Expr *> VarList,
+                                           SourceLocation StartLoc,
+                                           SourceLocation LParenLoc,
+                                           SourceLocation EndLoc);
+  /// Called on well-formed 'lastprivate' clause.
+  OMPClause *ActOnOpenMPLastprivateClause(
+      ArrayRef<Expr *> VarList, OpenMPLastprivateModifier LPKind,
+      SourceLocation LPKindLoc, SourceLocation ColonLoc,
+      SourceLocation StartLoc, SourceLocation LParenLoc, SourceLocation EndLoc);
+  /// Called on well-formed 'shared' clause.
+  OMPClause *ActOnOpenMPSharedClause(ArrayRef<Expr *> VarList,
+                                     SourceLocation StartLoc,
+                                     SourceLocation LParenLoc,
+                                     SourceLocation EndLoc);
+  /// Called on well-formed 'reduction' clause.
+  OMPClause *ActOnOpenMPReductionClause(
+      ArrayRef<Expr *> VarList, OpenMPReductionClauseModifier Modifier,
+      SourceLocation StartLoc, SourceLocation LParenLoc,
+      SourceLocation ModifierLoc, SourceLocation ColonLoc,
+      SourceLocation EndLoc, CXXScopeSpec &ReductionIdScopeSpec,
+      const DeclarationNameInfo &ReductionId,
+      ArrayRef<Expr *> UnresolvedReductions = std::nullopt);
+  /// Called on well-formed 'task_reduction' clause.
+  OMPClause *ActOnOpenMPTaskReductionClause(
+      ArrayRef<Expr *> VarList, SourceLocation StartLoc,
+      SourceLocation LParenLoc, SourceLocation ColonLoc, SourceLocation EndLoc,
+      CXXScopeSpec &ReductionIdScopeSpec,
+      const DeclarationNameInfo &ReductionId,
+      ArrayRef<Expr *> UnresolvedReductions = std::nullopt);
+  /// Called on well-formed 'in_reduction' clause.
+  OMPClause *ActOnOpenMPInReductionClause(
+      ArrayRef<Expr *> VarList, SourceLocation StartLoc,
+      SourceLocation LParenLoc, SourceLocation ColonLoc, SourceLocation EndLoc,
+      CXXScopeSpec &ReductionIdScopeSpec,
+      const DeclarationNameInfo &ReductionId,
+      ArrayRef<Expr *> UnresolvedReductions = std::nullopt);
+  /// Called on well-formed 'linear' clause.
+  OMPClause *ActOnOpenMPLinearClause(
+      ArrayRef<Expr *> VarList, Expr *Step, SourceLocation StartLoc,
+      SourceLocation LParenLoc, OpenMPLinearClauseKind LinKind,
+      SourceLocation LinLoc, SourceLocation ColonLoc,
+      SourceLocation StepModifierLoc, SourceLocation EndLoc);
+  /// Called on well-formed 'aligned' clause.
+  OMPClause *ActOnOpenMPAlignedClause(ArrayRef<Expr *> VarList, Expr *Alignment,
+                                      SourceLocation StartLoc,
+                                      SourceLocation LParenLoc,
+                                      SourceLocation ColonLoc,
+                                      SourceLocation EndLoc);
+  /// Called on well-formed 'copyin' clause.
+  OMPClause *ActOnOpenMPCopyinClause(ArrayRef<Expr *> VarList,
+                                     SourceLocation StartLoc,
+                                     SourceLocation LParenLoc,
+                                     SourceLocation EndLoc);
+  /// Called on well-formed 'copyprivate' clause.
+  OMPClause *ActOnOpenMPCopyprivateClause(ArrayRef<Expr *> VarList,
+                                          SourceLocation StartLoc,
+                                          SourceLocation LParenLoc,
+                                          SourceLocation EndLoc);
+  /// Called on well-formed 'flush' pseudo clause.
+  OMPClause *ActOnOpenMPFlushClause(ArrayRef<Expr *> VarList,
+                                    SourceLocation StartLoc,
+                                    SourceLocation LParenLoc,
+                                    SourceLocation EndLoc);
+  /// Called on well-formed 'depobj' pseudo clause.
+  OMPClause *ActOnOpenMPDepobjClause(Expr *Depobj, SourceLocation StartLoc,
+                                     SourceLocation LParenLoc,
+                                     SourceLocation EndLoc);
+  /// Called on well-formed 'depend' clause.
+  OMPClause *ActOnOpenMPDependClause(const OMPDependClause::DependDataTy &Data,
+                                     Expr *DepModifier,
+                                     ArrayRef<Expr *> VarList,
+                                     SourceLocation StartLoc,
+                                     SourceLocation LParenLoc,
+                                     SourceLocation EndLoc);
+  /// Called on well-formed 'device' clause.
+  OMPClause *ActOnOpenMPDeviceClause(OpenMPDeviceClauseModifier Modifier,
+                                     Expr *Device, SourceLocation StartLoc,
+                                     SourceLocation LParenLoc,
+                                     SourceLocation ModifierLoc,
+                                     SourceLocation EndLoc);
+  /// Called on well-formed 'map' clause.
+  OMPClause *ActOnOpenMPMapClause(
+      Expr *IteratorModifier, ArrayRef<OpenMPMapModifierKind> MapTypeModifiers,
+      ArrayRef<SourceLocation> MapTypeModifiersLoc,
+      CXXScopeSpec &MapperIdScopeSpec, DeclarationNameInfo &MapperId,
+      OpenMPMapClauseKind MapType, bool IsMapTypeImplicit,
+      SourceLocation MapLoc, SourceLocation ColonLoc, ArrayRef<Expr *> VarList,
+      const OMPVarListLocTy &Locs, bool NoDiagnose = false,
+      ArrayRef<Expr *> UnresolvedMappers = std::nullopt);
+  /// Called on well-formed 'num_teams' clause.
+  OMPClause *ActOnOpenMPNumTeamsClause(Expr *NumTeams, SourceLocation StartLoc,
+                                       SourceLocation LParenLoc,
+                                       SourceLocation EndLoc);
+  /// Called on well-formed 'thread_limit' clause.
+  OMPClause *ActOnOpenMPThreadLimitClause(Expr *ThreadLimit,
+                                          SourceLocation StartLoc,
+                                          SourceLocation LParenLoc,
+                                          SourceLocation EndLoc);
+  /// Called on well-formed 'priority' clause.
+  OMPClause *ActOnOpenMPPriorityClause(Expr *Priority, SourceLocation StartLoc,
+                                       SourceLocation LParenLoc,
+                                       SourceLocation EndLoc);
+  /// Called on well-formed 'dist_schedule' clause.
+  OMPClause *ActOnOpenMPDistScheduleClause(
+      OpenMPDistScheduleClauseKind Kind, Expr *ChunkSize,
+      SourceLocation StartLoc, SourceLocation LParenLoc, SourceLocation KindLoc,
+      SourceLocation CommaLoc, SourceLocation EndLoc);
+  /// Called on well-formed 'defaultmap' clause.
+  OMPClause *ActOnOpenMPDefaultmapClause(
+      OpenMPDefaultmapClauseModifier M, OpenMPDefaultmapClauseKind Kind,
+      SourceLocation StartLoc, SourceLocation LParenLoc, SourceLocation MLoc,
+      SourceLocation KindLoc, SourceLocation EndLoc);
+  /// Called on well-formed 'to' clause.
+  OMPClause *
+  ActOnOpenMPToClause(ArrayRef<OpenMPMotionModifierKind> MotionModifiers,
+                      ArrayRef<SourceLocation> MotionModifiersLoc,
+                      CXXScopeSpec &MapperIdScopeSpec,
+                      DeclarationNameInfo &MapperId, SourceLocation ColonLoc,
+                      ArrayRef<Expr *> VarList, const OMPVarListLocTy &Locs,
+                      ArrayRef<Expr *> UnresolvedMappers = std::nullopt);
+  /// Called on well-formed 'from' clause.
+  OMPClause *
+  ActOnOpenMPFromClause(ArrayRef<OpenMPMotionModifierKind> MotionModifiers,
+                        ArrayRef<SourceLocation> MotionModifiersLoc,
+                        CXXScopeSpec &MapperIdScopeSpec,
+                        DeclarationNameInfo &MapperId, SourceLocation ColonLoc,
+                        ArrayRef<Expr *> VarList, const OMPVarListLocTy &Locs,
+                        ArrayRef<Expr *> UnresolvedMappers = std::nullopt);
+  /// Called on well-formed 'use_device_ptr' clause.
+  OMPClause *ActOnOpenMPUseDevicePtrClause(ArrayRef<Expr *> VarList,
+                                           const OMPVarListLocTy &Locs);
+  /// Called on well-formed 'use_device_addr' clause.
+  OMPClause *ActOnOpenMPUseDeviceAddrClause(ArrayRef<Expr *> VarList,
+                                            const OMPVarListLocTy &Locs);
+  /// Called on well-formed 'is_device_ptr' clause.
+  OMPClause *ActOnOpenMPIsDevicePtrClause(ArrayRef<Expr *> VarList,
+                                          const OMPVarListLocTy &Locs);
+  /// Called on well-formed 'has_device_addr' clause.
+  OMPClause *ActOnOpenMPHasDeviceAddrClause(ArrayRef<Expr *> VarList,
+                                            const OMPVarListLocTy &Locs);
+  /// Called on well-formed 'nontemporal' clause.
+  OMPClause *ActOnOpenMPNontemporalClause(ArrayRef<Expr *> VarList,
+                                          SourceLocation StartLoc,
+                                          SourceLocation LParenLoc,
+                                          SourceLocation EndLoc);
+
+  /// Data for list of allocators.
+  struct UsesAllocatorsData {
+    /// Allocator.
+    Expr *Allocator = nullptr;
+    /// Allocator traits.
+    Expr *AllocatorTraits = nullptr;
+    /// Locations of '(' and ')' symbols.
+    SourceLocation LParenLoc, RParenLoc;
+  };
+  /// Called on well-formed 'uses_allocators' clause.
+  OMPClause *ActOnOpenMPUsesAllocatorClause(SourceLocation StartLoc,
+                                            SourceLocation LParenLoc,
+                                            SourceLocation EndLoc,
+                                            ArrayRef<UsesAllocatorsData> Data);
+  /// Called on well-formed 'affinity' clause.
+  OMPClause *ActOnOpenMPAffinityClause(SourceLocation StartLoc,
+                                       SourceLocation LParenLoc,
+                                       SourceLocation ColonLoc,
+                                       SourceLocation EndLoc, Expr *Modifier,
+                                       ArrayRef<Expr *> Locators);
+  /// Called on a well-formed 'bind' clause.
+  OMPClause *ActOnOpenMPBindClause(OpenMPBindClauseKind Kind,
+                                   SourceLocation KindLoc,
+                                   SourceLocation StartLoc,
+                                   SourceLocation LParenLoc,
+                                   SourceLocation EndLoc);
+
+  /// Called on a well-formed 'ompx_dyn_cgroup_mem' clause.
+  OMPClause *ActOnOpenMPXDynCGroupMemClause(Expr *Size, SourceLocation StartLoc,
+                                            SourceLocation LParenLoc,
+                                            SourceLocation EndLoc);
+
+  /// Called on well-formed 'doacross' clause.
+  OMPClause *
+  ActOnOpenMPDoacrossClause(OpenMPDoacrossClauseModifier DepType,
+                            SourceLocation DepLoc, SourceLocation ColonLoc,
+                            ArrayRef<Expr *> VarList, SourceLocation StartLoc,
+                            SourceLocation LParenLoc, SourceLocation EndLoc);
+
+  /// Called on a well-formed 'ompx_attribute' clause.
+  OMPClause *ActOnOpenMPXAttributeClause(ArrayRef<const Attr *> Attrs,
+                                         SourceLocation StartLoc,
+                                         SourceLocation LParenLoc,
+                                         SourceLocation EndLoc);
+
+  /// Called on a well-formed 'ompx_bare' clause.
+  OMPClause *ActOnOpenMPXBareClause(SourceLocation StartLoc,
+                                    SourceLocation EndLoc);
+
+  ExprResult ActOnOMPArraySectionExpr(Expr *Base, SourceLocation LBLoc,
+                                      Expr *LowerBound,
+                                      SourceLocation ColonLocFirst,
+                                      SourceLocation ColonLocSecond,
+                                      Expr *Length, Expr *Stride,
+                                      SourceLocation RBLoc);
+  ExprResult ActOnOMPArrayShapingExpr(Expr *Base, SourceLocation LParenLoc,
+                                      SourceLocation RParenLoc,
+                                      ArrayRef<Expr *> Dims,
+                                      ArrayRef<SourceRange> Brackets);
+
+  /// Data structure for iterator expression.
+  struct OMPIteratorData {
+    IdentifierInfo *DeclIdent = nullptr;
+    SourceLocation DeclIdentLoc;
+    ParsedType Type;
+    OMPIteratorExpr::IteratorRange Range;
+    SourceLocation AssignLoc;
+    SourceLocation ColonLoc;
+    SourceLocation SecColonLoc;
+  };
+
+  ExprResult ActOnOMPIteratorExpr(Scope *S, SourceLocation IteratorKwLoc,
+                                  SourceLocation LLoc, SourceLocation RLoc,
+                                  ArrayRef<OMPIteratorData> Data);
+
+private:
+  void *VarDataSharingAttributesStack;
+
+  /// Number of nested '#pragma omp declare target' directives.
+  SmallVector<DeclareTargetContextInfo, 4> DeclareTargetNesting;
+
+  /// Initialization of data-sharing attributes stack.
+  void InitDataSharingAttributesStack();
+  void DestroyDataSharingAttributesStack();
+
+  /// Returns OpenMP nesting level for current directive.
+  unsigned getOpenMPNestingLevel() const;
+
+  /// Adjusts the function scopes index for the target-based regions.
+  void adjustOpenMPTargetScopeIndex(unsigned &FunctionScopesIndex,
+                                    unsigned Level) const;
+
+  /// Returns the number of scopes associated with the construct on the given
+  /// OpenMP level.
+  int getNumberOfConstructScopes(unsigned Level) const;
+
+  /// Push new OpenMP function region for non-capturing function.
+  void pushOpenMPFunctionRegion();
+
+  /// Pop OpenMP function region for non-capturing function.
+  void popOpenMPFunctionRegion(const sema::FunctionScopeInfo *OldFSI);
+
+  /// Analyzes and checks a loop nest for use by a loop transformation.
+  ///
+  /// \param Kind          The loop transformation directive kind.
+  /// \param NumLoops      How many nested loops the directive is expecting.
+  /// \param AStmt         Associated statement of the transformation directive.
+  /// \param LoopHelpers   [out] The loop analysis result.
+  /// \param Body          [out] The body code nested in \p NumLoops loop.
+  /// \param OriginalInits [out] Collection of statements and declarations that
+  ///                      must have been executed/declared before entering the
+  ///                      loop.
+  ///
+  /// \return Whether there was any error.
+  bool checkTransformableLoopNest(
+      OpenMPDirectiveKind Kind, Stmt *AStmt, int NumLoops,
+      SmallVectorImpl<OMPLoopBasedDirective::HelperExprs> &LoopHelpers,
+      Stmt *&Body,
+      SmallVectorImpl<SmallVector<llvm::PointerUnion<Stmt *, Decl *>, 0>>
+          &OriginalInits);
+
+  /// Helper to keep information about the current `omp begin/end declare
+  /// variant` nesting.
+  struct OMPDeclareVariantScope {
+    /// The associated OpenMP context selector.
+    OMPTraitInfo *TI;
+
+    /// The associated OpenMP context selector mangling.
+    std::string NameSuffix;
+
+    OMPDeclareVariantScope(OMPTraitInfo &TI);
+  };
+
+  /// Return the OMPTraitInfo for the surrounding scope, if any.
+  OMPTraitInfo *getOMPTraitInfoForSurroundingScope() {
+    return OMPDeclareVariantScopes.empty() ? nullptr
+                                           : OMPDeclareVariantScopes.back().TI;
+  }
+
+  /// The current `omp begin/end declare variant` scopes.
+  SmallVector<OMPDeclareVariantScope, 4> OMPDeclareVariantScopes;
+
+  /// The current `omp begin/end assumes` scopes.
+  SmallVector<OMPAssumeAttr *, 4> OMPAssumeScoped;
+
+  /// All `omp assumes` we encountered so far.
+  SmallVector<OMPAssumeAttr *, 4> OMPAssumeGlobal;
+
+  /// OMPD_loop is mapped to OMPD_for, OMPD_distribute or OMPD_simd depending
+  /// on the parameter of the bind clause. In the methods for the
+  /// mapped directives, check the parameters of the lastprivate clause.
+  bool checkLastPrivateForMappedDirectives(ArrayRef<OMPClause *> Clauses);
+  /// Depending on the bind clause of OMPD_loop map the directive to new
+  /// directives.
+  ///    1) loop bind(parallel) --> OMPD_for
+  ///    2) loop bind(teams) --> OMPD_distribute
+  ///    3) loop bind(thread) --> OMPD_simd
+  /// This is being handled in Sema instead of Codegen because of the need for
+  /// rigorous semantic checking in the new mapped directives.
+  bool mapLoopConstruct(llvm::SmallVector<OMPClause *> &ClausesWithoutBind,
+                        ArrayRef<OMPClause *> Clauses,
+                        OpenMPBindClauseKind &BindKind,
+                        OpenMPDirectiveKind &Kind,
+                        OpenMPDirectiveKind &PrevMappedDirective,
+                        SourceLocation StartLoc, SourceLocation EndLoc,
+                        const DeclarationNameInfo &DirName,
+                        OpenMPDirectiveKind CancelRegion);
+};
+
+} // namespace clang
+
+#endif // LLVM_CLANG_SEMA_SEMAOPENMP_H
diff --git a/clang/lib/Parse/ParseDecl.cpp b/clang/lib/Parse/ParseDecl.cpp
index 2b93423..c881b37 100644
--- a/clang/lib/Parse/ParseDecl.cpp
+++ b/clang/lib/Parse/ParseDecl.cpp
@@ -28,6 +28,7 @@
 #include "clang/Sema/Scope.h"
 #include "clang/Sema/SemaCUDA.h"
 #include "clang/Sema/SemaDiagnostic.h"
+#include "clang/Sema/SemaOpenMP.h"
 #include "llvm/ADT/SmallSet.h"
 #include "llvm/ADT/SmallString.h"
 #include "llvm/ADT/StringSwitch.h"
@@ -2383,7 +2384,7 @@ Parser::DeclGroupPtrTy Parser::ParseDeclGroup(ParsingDeclSpec &DS,
       }
 
       if (getLangOpts().OpenMP)
-        Actions.startOpenMPCXXRangeFor();
+        Actions.OpenMP().startOpenMPCXXRangeFor();
       if (Tok.is(tok::l_brace))
         FRI->RangeExpr = ParseBraceInitializer();
       else
diff --git a/clang/lib/Parse/ParseExpr.cpp b/clang/lib/Parse/ParseExpr.cpp
index 473ec9af..32d96f8 100644
--- a/clang/lib/Parse/ParseExpr.cpp
+++ b/clang/lib/Parse/ParseExpr.cpp
@@ -31,6 +31,7 @@
 #include "clang/Sema/ParsedTemplate.h"
 #include "clang/Sema/Scope.h"
 #include "clang/Sema/SemaCUDA.h"
+#include "clang/Sema/SemaOpenMP.h"
 #include "clang/Sema/SemaSYCL.h"
 #include "clang/Sema/TypoCorrection.h"
 #include "llvm/ADT/SmallVector.h"
@@ -2075,7 +2076,7 @@ Parser::ParsePostfixExpressionSuffix(ExprResult LHS) {
           // replace this call to ActOnOpenACCArraySectionExpr in the future.
           // Eventually we'll genericize the OPenMPArraySectionExpr type as
           // well.
-          LHS = Actions.ActOnOMPArraySectionExpr(
+          LHS = Actions.OpenMP().ActOnOMPArraySectionExpr(
               LHS.get(), Loc, ArgExprs.empty() ? nullptr : ArgExprs[0],
               ColonLocFirst, ColonLocSecond, Length.get(), Stride.get(), RLoc);
         } else {
@@ -3277,7 +3278,7 @@ Parser::ParseParenExpression(ParenParseOption &ExprType, bool stopIfCastExpr,
     if (ErrorFound) {
       Result = ExprError();
     } else if (!Result.isInvalid()) {
-      Result = Actions.ActOnOMPArrayShapingExpr(
+      Result = Actions.OpenMP().ActOnOMPArrayShapingExpr(
           Result.get(), OpenLoc, RParenLoc, OMPDimensions, OMPBracketsRanges);
     }
     return Result;
diff --git a/clang/lib/Parse/ParseOpenMP.cpp b/clang/lib/Parse/ParseOpenMP.cpp
index 814126e..480201b 100644
--- a/clang/lib/Parse/ParseOpenMP.cpp
+++ b/clang/lib/Parse/ParseOpenMP.cpp
@@ -21,6 +21,7 @@
 #include "clang/Parse/RAIIObjectsForParser.h"
 #include "clang/Sema/EnterExpressionEvaluationContext.h"
 #include "clang/Sema/Scope.h"
+#include "clang/Sema/SemaOpenMP.h"
 #include "llvm/ADT/PointerIntPair.h"
 #include "llvm/ADT/StringSwitch.h"
 #include "llvm/ADT/UniqueVector.h"
@@ -87,7 +88,7 @@ public:
   DeclDirectiveListParserHelper(Parser *P, OpenMPDirectiveKind Kind)
       : P(P), Kind(Kind) {}
   void operator()(CXXScopeSpec &SS, DeclarationNameInfo NameInfo) {
-    ExprResult Res = P->getActions().ActOnOpenMPIdExpression(
+    ExprResult Res = P->getActions().OpenMP().ActOnOpenMPIdExpression(
         P->getCurScope(), SS, NameInfo, Kind);
     if (Res.isUsable())
       Identifiers.push_back(Res.get());
@@ -322,8 +323,8 @@ Parser::ParseOpenMPDeclareReductionDirective(AccessSpecifier AS) {
     SourceRange Range;
     TypeResult TR = ParseTypeName(&Range, DeclaratorContext::Prototype, AS);
     if (TR.isUsable()) {
-      QualType ReductionType =
-          Actions.ActOnOpenMPDeclareReductionType(Range.getBegin(), TR);
+      QualType ReductionType = Actions.OpenMP().ActOnOpenMPDeclareReductionType(
+          Range.getBegin(), TR);
       if (!ReductionType.isNull()) {
         ReductionTypes.push_back(
             std::make_pair(ReductionType, Range.getBegin()));
@@ -363,8 +364,10 @@ Parser::ParseOpenMPDeclareReductionDirective(AccessSpecifier AS) {
     return DeclGroupPtrTy();
   }
 
-  DeclGroupPtrTy DRD = Actions.ActOnOpenMPDeclareReductionDirectiveStart(
-      getCurScope(), Actions.getCurLexicalContext(), Name, ReductionTypes, AS);
+  DeclGroupPtrTy DRD =
+      Actions.OpenMP().ActOnOpenMPDeclareReductionDirectiveStart(
+          getCurScope(), Actions.getCurLexicalContext(), Name, ReductionTypes,
+          AS);
 
   // Parse <combiner> expression and then parse initializer if any for each
   // correct type.
@@ -375,10 +378,11 @@ Parser::ParseOpenMPDeclareReductionDirective(AccessSpecifier AS) {
                                     Scope::CompoundStmtScope |
                                     Scope::OpenMPDirectiveScope);
     // Parse <combiner> expression.
-    Actions.ActOnOpenMPDeclareReductionCombinerStart(getCurScope(), D);
+    Actions.OpenMP().ActOnOpenMPDeclareReductionCombinerStart(getCurScope(), D);
     ExprResult CombinerResult = Actions.ActOnFinishFullExpr(
         ParseExpression().get(), D->getLocation(), /*DiscardedValue*/ false);
-    Actions.ActOnOpenMPDeclareReductionCombinerEnd(D, CombinerResult.get());
+    Actions.OpenMP().ActOnOpenMPDeclareReductionCombinerEnd(
+        D, CombinerResult.get());
 
     if (CombinerResult.isInvalid() && Tok.isNot(tok::r_paren) &&
         Tok.isNot(tok::annot_pragma_openmp_end)) {
@@ -411,8 +415,8 @@ Parser::ParseOpenMPDeclareReductionDirective(AccessSpecifier AS) {
                                         Scope::OpenMPDirectiveScope);
         // Parse expression.
         VarDecl *OmpPrivParm =
-            Actions.ActOnOpenMPDeclareReductionInitializerStart(getCurScope(),
-                                                                D);
+            Actions.OpenMP().ActOnOpenMPDeclareReductionInitializerStart(
+                getCurScope(), D);
         // Check if initializer is omp_priv <init_expr> or something else.
         if (Tok.is(tok::identifier) &&
             Tok.getIdentifierInfo()->isStr("omp_priv")) {
@@ -423,7 +427,7 @@ Parser::ParseOpenMPDeclareReductionDirective(AccessSpecifier AS) {
               ParseAssignmentExpression().get(), D->getLocation(),
               /*DiscardedValue*/ false);
         }
-        Actions.ActOnOpenMPDeclareReductionInitializerEnd(
+        Actions.OpenMP().ActOnOpenMPDeclareReductionInitializerEnd(
             D, InitializerResult.get(), OmpPrivParm);
         if (InitializerResult.isInvalid() && Tok.isNot(tok::r_paren) &&
             Tok.isNot(tok::annot_pragma_openmp_end)) {
@@ -444,8 +448,8 @@ Parser::ParseOpenMPDeclareReductionDirective(AccessSpecifier AS) {
     else
       TPA.Commit();
   }
-  return Actions.ActOnOpenMPDeclareReductionDirectiveEnd(getCurScope(), DRD,
-                                                         IsCorrect);
+  return Actions.OpenMP().ActOnOpenMPDeclareReductionDirectiveEnd(
+      getCurScope(), DRD, IsCorrect);
 }
 
 void Parser::ParseOpenMPReductionInitializerForDecl(VarDecl *OmpPrivParm) {
@@ -569,8 +573,8 @@ Parser::ParseOpenMPDeclareMapperDirective(AccessSpecifier AS) {
   SourceRange Range;
   TypeResult ParsedType = parseOpenMPDeclareMapperVarDecl(Range, VName, AS);
   if (ParsedType.isUsable())
-    MapperType =
-        Actions.ActOnOpenMPDeclareMapperType(Range.getBegin(), ParsedType);
+    MapperType = Actions.OpenMP().ActOnOpenMPDeclareMapperType(Range.getBegin(),
+                                                               ParsedType);
   if (MapperType.isNull())
     IsCorrect = false;
   if (!IsCorrect) {
@@ -591,11 +595,13 @@ Parser::ParseOpenMPDeclareMapperDirective(AccessSpecifier AS) {
   unsigned ScopeFlags = Scope::FnScope | Scope::DeclScope |
                         Scope::CompoundStmtScope | Scope::OpenMPDirectiveScope;
   ParseScope OMPDirectiveScope(this, ScopeFlags);
-  Actions.StartOpenMPDSABlock(OMPD_declare_mapper, DirName, getCurScope(), Loc);
+  Actions.OpenMP().StartOpenMPDSABlock(OMPD_declare_mapper, DirName,
+                                       getCurScope(), Loc);
 
   // Add the mapper variable declaration.
-  ExprResult MapperVarRef = Actions.ActOnOpenMPDeclareMapperDirectiveVarDecl(
-      getCurScope(), MapperType, Range.getBegin(), VName);
+  ExprResult MapperVarRef =
+      Actions.OpenMP().ActOnOpenMPDeclareMapperDirectiveVarDecl(
+          getCurScope(), MapperType, Range.getBegin(), VName);
 
   // Parse map clauses.
   SmallVector<OMPClause *, 6> Clauses;
@@ -603,7 +609,7 @@ Parser::ParseOpenMPDeclareMapperDirective(AccessSpecifier AS) {
     OpenMPClauseKind CKind = Tok.isAnnotation()
                                  ? OMPC_unknown
                                  : getOpenMPClauseKind(PP.getSpelling(Tok));
-    Actions.StartOpenMPClause(CKind);
+    Actions.OpenMP().StartOpenMPClause(CKind);
     OMPClause *Clause =
         ParseOpenMPClause(OMPD_declare_mapper, CKind, Clauses.empty());
     if (Clause)
@@ -613,7 +619,7 @@ Parser::ParseOpenMPDeclareMapperDirective(AccessSpecifier AS) {
     // Skip ',' if any.
     if (Tok.is(tok::comma))
       ConsumeToken();
-    Actions.EndOpenMPClause();
+    Actions.OpenMP().EndOpenMPClause();
   }
   if (Clauses.empty()) {
     Diag(Tok, diag::err_omp_expected_clause)
@@ -622,9 +628,9 @@ Parser::ParseOpenMPDeclareMapperDirective(AccessSpecifier AS) {
   }
 
   // Exit scope.
-  Actions.EndOpenMPDSABlock(nullptr);
+  Actions.OpenMP().EndOpenMPDSABlock(nullptr);
   OMPDirectiveScope.Exit();
-  DeclGroupPtrTy DG = Actions.ActOnOpenMPDeclareMapperDirective(
+  DeclGroupPtrTy DG = Actions.OpenMP().ActOnOpenMPDeclareMapperDirective(
       getCurScope(), Actions.getCurLexicalContext(), MapperId, MapperType,
       Range.getBegin(), VName, AS, MapperVarRef.get(), Clauses);
   if (!IsCorrect)
@@ -652,7 +658,8 @@ TypeResult Parser::parseOpenMPDeclareMapperVarDecl(SourceRange &Range,
   }
   Name = Actions.GetNameForDeclarator(DeclaratorInfo).getName();
 
-  return Actions.ActOnOpenMPDeclareMapperVarDecl(getCurScope(), DeclaratorInfo);
+  return Actions.OpenMP().ActOnOpenMPDeclareMapperVarDecl(getCurScope(),
+                                                          DeclaratorInfo);
 }
 
 namespace {
@@ -748,7 +755,7 @@ static bool parseDeclareSimdClauses(
       OpenMPClauseKind CKind = getOpenMPClauseKind(ClauseName);
       if (CKind == OMPC_uniform || CKind == OMPC_aligned ||
           CKind == OMPC_linear) {
-        Sema::OpenMPVarListDataTy Data;
+        SemaOpenMP::OpenMPVarListDataTy Data;
         SmallVectorImpl<Expr *> *Vars = &Uniforms;
         if (CKind == OMPC_aligned) {
           Vars = &Aligneds;
@@ -768,7 +775,7 @@ static bool parseDeclareSimdClauses(
           assert(0 <= Data.ExtraModifier &&
                  Data.ExtraModifier <= OMPC_LINEAR_unknown &&
                  "Unexpected linear modifier.");
-          if (P.getActions().CheckOpenMPLinearModifier(
+          if (P.getActions().OpenMP().CheckOpenMPLinearModifier(
                   static_cast<OpenMPLinearClauseKind>(Data.ExtraModifier),
                   Data.ExtraModifierLoc))
             Data.ExtraModifier = OMPC_LINEAR_val;
@@ -816,7 +823,7 @@ Parser::ParseOMPDeclareSimdClauses(Parser::DeclGroupPtrTy Ptr,
   SourceLocation EndLoc = ConsumeAnnotationToken();
   if (IsError)
     return Ptr;
-  return Actions.ActOnOpenMPDeclareSimdDirective(
+  return Actions.OpenMP().ActOnOpenMPDeclareSimdDirective(
       Ptr, BS, Simdlen.get(), Uniforms, Aligneds, Alignments, Linears,
       LinModifiers, Steps, SourceRange(Loc, EndLoc));
 }
@@ -1412,7 +1419,8 @@ void Parser::ParseOMPDeclareVariantClauses(Parser::DeclGroupPtrTy Ptr,
     return;
   }
 
-  OMPTraitInfo *ParentTI = Actions.getOMPTraitInfoForSurroundingScope();
+  OMPTraitInfo *ParentTI =
+      Actions.OpenMP().getOMPTraitInfoForSurroundingScope();
   ASTContext &ASTCtx = Actions.getASTContext();
   OMPTraitInfo &TI = ASTCtx.getNewOMPTraitInfo();
   SmallVector<Expr *, 6> AdjustNothing;
@@ -1445,7 +1453,7 @@ void Parser::ParseOMPDeclareVariantClauses(Parser::DeclGroupPtrTy Ptr,
       case OMPC_adjust_args: {
         AdjustArgsLoc = Tok.getLocation();
         ConsumeToken();
-        Sema::OpenMPVarListDataTy Data;
+        SemaOpenMP::OpenMPVarListDataTy Data;
         SmallVector<Expr *> Vars;
         IsError = ParseOpenMPVarList(OMPD_declare_variant, OMPC_adjust_args,
                                      Vars, Data);
@@ -1486,12 +1494,12 @@ void Parser::ParseOMPDeclareVariantClauses(Parser::DeclGroupPtrTy Ptr,
   }
 
   std::optional<std::pair<FunctionDecl *, Expr *>> DeclVarData =
-      Actions.checkOpenMPDeclareVariantFunction(
+      Actions.OpenMP().checkOpenMPDeclareVariantFunction(
           Ptr, AssociatedFunction.get(), TI, AppendArgs.size(),
           SourceRange(Loc, Tok.getLocation()));
 
   if (DeclVarData && !TI.Sets.empty())
-    Actions.ActOnOpenMPDeclareVariantDirective(
+    Actions.OpenMP().ActOnOpenMPDeclareVariantDirective(
         DeclVarData->first, DeclVarData->second, TI, AdjustNothing,
         AdjustNeedDevicePtr, AppendArgs, AdjustArgsLoc, AppendArgsLoc,
         SourceRange(Loc, Tok.getLocation()));
@@ -1642,7 +1650,7 @@ void Parser::ParseOpenMPClauses(OpenMPDirectiveKind DKind,
     OpenMPClauseKind CKind = Tok.isAnnotation()
                                  ? OMPC_unknown
                                  : getOpenMPClauseKind(PP.getSpelling(Tok));
-    Actions.StartOpenMPClause(CKind);
+    Actions.OpenMP().StartOpenMPClause(CKind);
     OMPClause *Clause = ParseOpenMPClause(
         DKind, CKind, !FirstClauses[unsigned(CKind)].getInt());
     SkipUntil(tok::comma, tok::identifier, tok::annot_pragma_openmp_end,
@@ -1651,13 +1659,13 @@ void Parser::ParseOpenMPClauses(OpenMPDirectiveKind DKind,
     if (Clause != nullptr)
       Clauses.push_back(Clause);
     if (Tok.is(tok::annot_pragma_openmp_end)) {
-      Actions.EndOpenMPClause();
+      Actions.OpenMP().EndOpenMPClause();
       break;
     }
     // Skip ',' if any.
     if (Tok.is(tok::comma))
       ConsumeToken();
-    Actions.EndOpenMPClause();
+    Actions.OpenMP().EndOpenMPClause();
   }
 }
 
@@ -1750,12 +1758,13 @@ void Parser::ParseOpenMPAssumesDirective(OpenMPDirectiveKind DKind,
     Assumptions.push_back(Assumption);
   }
 
-  Actions.ActOnOpenMPAssumesDirective(Loc, DKind, Assumptions, SkippedClauses);
+  Actions.OpenMP().ActOnOpenMPAssumesDirective(Loc, DKind, Assumptions,
+                                               SkippedClauses);
 }
 
 void Parser::ParseOpenMPEndAssumesDirective(SourceLocation Loc) {
-  if (Actions.isInOpenMPAssumeScope())
-    Actions.ActOnOpenMPEndAssumesDirective();
+  if (Actions.OpenMP().isInOpenMPAssumeScope())
+    Actions.OpenMP().ActOnOpenMPEndAssumesDirective();
   else
     Diag(Loc, diag::err_expected_begin_assumes);
 }
@@ -1811,7 +1820,7 @@ parseOpenMPSimpleClause(Parser &P, OpenMPClauseKind Kind) {
 }
 
 void Parser::ParseOMPDeclareTargetClauses(
-    Sema::DeclareTargetContextInfo &DTCI) {
+    SemaOpenMP::DeclareTargetContextInfo &DTCI) {
   SourceLocation DeviceTypeLoc;
   bool RequiresToOrLinkOrIndirectClause = false;
   bool HasToOrLinkOrIndirectClause = false;
@@ -1910,11 +1919,11 @@ void Parser::ParseOMPDeclareTargetClauses(
     if (DTCI.Kind == OMPD_declare_target || HasIdentifier) {
       auto &&Callback = [this, MT, &DTCI](CXXScopeSpec &SS,
                                           DeclarationNameInfo NameInfo) {
-        NamedDecl *ND =
-            Actions.lookupOpenMPDeclareTargetName(getCurScope(), SS, NameInfo);
+        NamedDecl *ND = Actions.OpenMP().lookupOpenMPDeclareTargetName(
+            getCurScope(), SS, NameInfo);
         if (!ND)
           return;
-        Sema::DeclareTargetContextInfo::MapInfo MI{MT, NameInfo.getLoc()};
+        SemaOpenMP::DeclareTargetContextInfo::MapInfo MI{MT, NameInfo.getLoc()};
         bool FirstMapping = DTCI.ExplicitlyMapped.try_emplace(ND, MI).second;
         if (!FirstMapping)
           Diag(NameInfo.getLoc(), diag::err_omp_declare_target_multiple)
@@ -2090,8 +2099,8 @@ Parser::DeclGroupPtrTy Parser::ParseOpenMPDeclarativeDirectiveWithExtDecl(
       skipUntilPragmaOpenMPEnd(DKind);
       // Skip the last annot_pragma_openmp_end.
       ConsumeAnnotationToken();
-      return Actions.ActOnOpenMPThreadprivateDirective(Loc,
-                                                       Helper.getIdentifiers());
+      return Actions.OpenMP().ActOnOpenMPThreadprivateDirective(
+          Loc, Helper.getIdentifiers());
     }
     break;
   }
@@ -2109,7 +2118,7 @@ Parser::DeclGroupPtrTy Parser::ParseOpenMPDeclarativeDirectiveWithExtDecl(
           OpenMPClauseKind CKind =
               Tok.isAnnotation() ? OMPC_unknown
                                  : getOpenMPClauseKind(PP.getSpelling(Tok));
-          Actions.StartOpenMPClause(CKind);
+          Actions.OpenMP().StartOpenMPClause(CKind);
           OMPClause *Clause = ParseOpenMPClause(
               OMPD_allocate, CKind, !FirstClauses[unsigned(CKind)].getInt());
           SkipUntil(tok::comma, tok::identifier, tok::annot_pragma_openmp_end,
@@ -2118,20 +2127,20 @@ Parser::DeclGroupPtrTy Parser::ParseOpenMPDeclarativeDirectiveWithExtDecl(
           if (Clause != nullptr)
             Clauses.push_back(Clause);
           if (Tok.is(tok::annot_pragma_openmp_end)) {
-            Actions.EndOpenMPClause();
+            Actions.OpenMP().EndOpenMPClause();
             break;
           }
           // Skip ',' if any.
           if (Tok.is(tok::comma))
             ConsumeToken();
-          Actions.EndOpenMPClause();
+          Actions.OpenMP().EndOpenMPClause();
         }
         skipUntilPragmaOpenMPEnd(DKind);
       }
       // Skip the last annot_pragma_openmp_end.
       ConsumeAnnotationToken();
-      return Actions.ActOnOpenMPAllocateDirective(Loc, Helper.getIdentifiers(),
-                                                  Clauses);
+      return Actions.OpenMP().ActOnOpenMPAllocateDirective(
+          Loc, Helper.getIdentifiers(), Clauses);
     }
     break;
   }
@@ -2150,7 +2159,7 @@ Parser::DeclGroupPtrTy Parser::ParseOpenMPDeclarativeDirectiveWithExtDecl(
       OpenMPClauseKind CKind = Tok.isAnnotation()
                                    ? OMPC_unknown
                                    : getOpenMPClauseKind(PP.getSpelling(Tok));
-      Actions.StartOpenMPClause(CKind);
+      Actions.OpenMP().StartOpenMPClause(CKind);
       OMPClause *Clause = ParseOpenMPClause(
           OMPD_requires, CKind, !FirstClauses[unsigned(CKind)].getInt());
       SkipUntil(tok::comma, tok::identifier, tok::annot_pragma_openmp_end,
@@ -2159,13 +2168,13 @@ Parser::DeclGroupPtrTy Parser::ParseOpenMPDeclarativeDirectiveWithExtDecl(
       if (Clause != nullptr)
         Clauses.push_back(Clause);
       if (Tok.is(tok::annot_pragma_openmp_end)) {
-        Actions.EndOpenMPClause();
+        Actions.OpenMP().EndOpenMPClause();
         break;
       }
       // Skip ',' if any.
       if (Tok.is(tok::comma))
         ConsumeToken();
-      Actions.EndOpenMPClause();
+      Actions.OpenMP().EndOpenMPClause();
     }
     // Consume final annot_pragma_openmp_end
     if (Clauses.empty()) {
@@ -2175,14 +2184,15 @@ Parser::DeclGroupPtrTy Parser::ParseOpenMPDeclarativeDirectiveWithExtDecl(
       return nullptr;
     }
     ConsumeAnnotationToken();
-    return Actions.ActOnOpenMPRequiresDirective(StartLoc, Clauses);
+    return Actions.OpenMP().ActOnOpenMPRequiresDirective(StartLoc, Clauses);
   }
   case OMPD_error: {
     SmallVector<OMPClause *, 1> Clauses;
     SourceLocation StartLoc = ConsumeToken();
     ParseOpenMPClauses(DKind, Clauses, StartLoc);
-    Actions.ActOnOpenMPErrorDirective(Clauses, StartLoc, SourceLocation(),
-                                      /*InExContext = */ false);
+    Actions.OpenMP().ActOnOpenMPErrorDirective(Clauses, StartLoc,
+                                               SourceLocation(),
+                                               /*InExContext = */ false);
     break;
   }
   case OMPD_assumes:
@@ -2217,7 +2227,8 @@ Parser::DeclGroupPtrTy Parser::ParseOpenMPDeclarativeDirectiveWithExtDecl(
     // { #pragma omp end declare variant }
     //
     ConsumeToken();
-    OMPTraitInfo *ParentTI = Actions.getOMPTraitInfoForSurroundingScope();
+    OMPTraitInfo *ParentTI =
+        Actions.OpenMP().getOMPTraitInfoForSurroundingScope();
     ASTContext &ASTCtx = Actions.getASTContext();
     OMPTraitInfo &TI = ASTCtx.getNewOMPTraitInfo();
     if (parseOMPDeclareVariantMatchClause(Loc, TI, ParentTI)) {
@@ -2248,7 +2259,7 @@ Parser::DeclGroupPtrTy Parser::ParseOpenMPDeclarativeDirectiveWithExtDecl(
         /* ConstructTraits */ ArrayRef<llvm::omp::TraitProperty>());
 
     if (isVariantApplicableInContext(VMI, OMPCtx, /* DeviceSetOnly */ true)) {
-      Actions.ActOnOpenMPBeginDeclareVariant(Loc, TI);
+      Actions.OpenMP().ActOnOpenMPBeginDeclareVariant(Loc, TI);
       break;
     }
 
@@ -2275,8 +2286,8 @@ Parser::DeclGroupPtrTy Parser::ParseOpenMPDeclarativeDirectiveWithExtDecl(
     break;
   }
   case OMPD_end_declare_variant: {
-    if (Actions.isInOpenMPDeclareVariantScope())
-      Actions.ActOnOpenMPEndDeclareVariant();
+    if (Actions.OpenMP().isInOpenMPDeclareVariantScope())
+      Actions.OpenMP().ActOnOpenMPEndDeclareVariant();
     else
       Diag(Loc, diag::err_expected_begin_declare_variant);
     ConsumeToken();
@@ -2331,7 +2342,7 @@ Parser::DeclGroupPtrTy Parser::ParseOpenMPDeclarativeDirectiveWithExtDecl(
   case OMPD_declare_target: {
     SourceLocation DTLoc = ConsumeAnyToken();
     bool HasClauses = Tok.isNot(tok::annot_pragma_openmp_end);
-    Sema::DeclareTargetContextInfo DTCI(DKind, DTLoc);
+    SemaOpenMP::DeclareTargetContextInfo DTCI(DKind, DTLoc);
     if (HasClauses)
       ParseOMPDeclareTargetClauses(DTCI);
     bool HasImplicitMappings = DKind == OMPD_begin_declare_target ||
@@ -2342,24 +2353,24 @@ Parser::DeclGroupPtrTy Parser::ParseOpenMPDeclarativeDirectiveWithExtDecl(
     ConsumeAnyToken();
 
     if (HasImplicitMappings) {
-      Actions.ActOnStartOpenMPDeclareTargetContext(DTCI);
+      Actions.OpenMP().ActOnStartOpenMPDeclareTargetContext(DTCI);
       return nullptr;
     }
 
-    Actions.ActOnFinishedOpenMPDeclareTargetContext(DTCI);
+    Actions.OpenMP().ActOnFinishedOpenMPDeclareTargetContext(DTCI);
     llvm::SmallVector<Decl *, 4> Decls;
     for (auto &It : DTCI.ExplicitlyMapped)
       Decls.push_back(It.first);
     return Actions.BuildDeclaratorGroup(Decls);
   }
   case OMPD_end_declare_target: {
-    if (!Actions.isInOpenMPDeclareTargetContext()) {
+    if (!Actions.OpenMP().isInOpenMPDeclareTargetContext()) {
       Diag(Tok, diag::err_omp_unexpected_directive)
           << 1 << getOpenMPDirectiveName(DKind);
       break;
     }
-    const Sema::DeclareTargetContextInfo &DTCI =
-        Actions.ActOnOpenMPEndDeclareTargetDirective();
+    const SemaOpenMP::DeclareTargetContextInfo &DTCI =
+        Actions.OpenMP().ActOnOpenMPEndDeclareTargetDirective();
     ParseOMPEndDeclareTargetDirective(DTCI.Kind, DKind, DTCI.Loc);
     return nullptr;
   }
@@ -2683,7 +2694,7 @@ StmtResult Parser::ParseOpenMPDeclarativeOrExecutableDirective(
     if (!ParseOpenMPSimpleVarList(DKind, Helper,
                                   /*AllowScopeSpecifier=*/false)) {
       skipUntilPragmaOpenMPEnd(DKind);
-      DeclGroupPtrTy Res = Actions.ActOnOpenMPThreadprivateDirective(
+      DeclGroupPtrTy Res = Actions.OpenMP().ActOnOpenMPThreadprivateDirective(
           Loc, Helper.getIdentifiers());
       Directive = Actions.ActOnDeclStmt(Res, Loc, Tok.getLocation());
     }
@@ -2710,7 +2721,7 @@ StmtResult Parser::ParseOpenMPDeclarativeOrExecutableDirective(
           OpenMPClauseKind CKind =
               Tok.isAnnotation() ? OMPC_unknown
                                  : getOpenMPClauseKind(PP.getSpelling(Tok));
-          Actions.StartOpenMPClause(CKind);
+          Actions.OpenMP().StartOpenMPClause(CKind);
           OMPClause *Clause = ParseOpenMPClause(
               OMPD_allocate, CKind, !FirstClauses[unsigned(CKind)].getInt());
           SkipUntil(tok::comma, tok::identifier, tok::annot_pragma_openmp_end,
@@ -2719,17 +2730,17 @@ StmtResult Parser::ParseOpenMPDeclarativeOrExecutableDirective(
           if (Clause != nullptr)
             Clauses.push_back(Clause);
           if (Tok.is(tok::annot_pragma_openmp_end)) {
-            Actions.EndOpenMPClause();
+            Actions.OpenMP().EndOpenMPClause();
             break;
           }
           // Skip ',' if any.
           if (Tok.is(tok::comma))
             ConsumeToken();
-          Actions.EndOpenMPClause();
+          Actions.OpenMP().EndOpenMPClause();
         }
         skipUntilPragmaOpenMPEnd(DKind);
       }
-      DeclGroupPtrTy Res = Actions.ActOnOpenMPAllocateDirective(
+      DeclGroupPtrTy Res = Actions.OpenMP().ActOnOpenMPAllocateDirective(
           Loc, Helper.getIdentifiers(), Clauses);
       Directive = Actions.ActOnDeclStmt(Res, Loc, Tok.getLocation());
     }
@@ -2875,7 +2886,8 @@ StmtResult Parser::ParseOpenMPDeclarativeOrExecutableDirective(
     if (isOpenMPSimdDirective(DKind))
       ScopeFlags |= Scope::OpenMPSimdDirectiveScope;
     ParseScope OMPDirectiveScope(this, ScopeFlags);
-    Actions.StartOpenMPDSABlock(DKind, DirName, Actions.getCurScope(), Loc);
+    Actions.OpenMP().StartOpenMPDSABlock(DKind, DirName, Actions.getCurScope(),
+                                         Loc);
 
     while (Tok.isNot(tok::annot_pragma_openmp_end)) {
       // If we are parsing for a directive within a metadirective, the directive
@@ -2909,7 +2921,7 @@ StmtResult Parser::ParseOpenMPDeclarativeOrExecutableDirective(
       }
       // No more implicit clauses allowed.
       ImplicitClauseAllowed = false;
-      Actions.StartOpenMPClause(CKind);
+      Actions.OpenMP().StartOpenMPClause(CKind);
       HasImplicitClause = false;
       OMPClause *Clause = ParseOpenMPClause(
           DKind, CKind, !FirstClauses[unsigned(CKind)].getInt());
@@ -2922,7 +2934,7 @@ StmtResult Parser::ParseOpenMPDeclarativeOrExecutableDirective(
       // Skip ',' if any.
       if (Tok.is(tok::comma))
         ConsumeToken();
-      Actions.EndOpenMPClause();
+      Actions.OpenMP().EndOpenMPClause();
     }
     // End location of the directive.
     EndLoc = Tok.getLocation();
@@ -2953,7 +2965,7 @@ StmtResult Parser::ParseOpenMPDeclarativeOrExecutableDirective(
     StmtResult AssociatedStmt;
     if (HasAssociatedStatement) {
       // The body is a block scope like in Lambdas and Blocks.
-      Actions.ActOnOpenMPRegionStart(DKind, getCurScope());
+      Actions.OpenMP().ActOnOpenMPRegionStart(DKind, getCurScope());
       // FIXME: We create a bogus CompoundStmt scope to hold the contents of
       // the captured region. Code elsewhere assumes that any FunctionScopeInfo
       // should have at least one compound statement scope within it.
@@ -2964,30 +2976,33 @@ StmtResult Parser::ParseOpenMPDeclarativeOrExecutableDirective(
 
         if (AssociatedStmt.isUsable() && isOpenMPLoopDirective(DKind) &&
             getLangOpts().OpenMPIRBuilder)
-          AssociatedStmt = Actions.ActOnOpenMPLoopnest(AssociatedStmt.get());
+          AssociatedStmt =
+              Actions.OpenMP().ActOnOpenMPLoopnest(AssociatedStmt.get());
       }
-      AssociatedStmt = Actions.ActOnOpenMPRegionEnd(AssociatedStmt, Clauses);
+      AssociatedStmt =
+          Actions.OpenMP().ActOnOpenMPRegionEnd(AssociatedStmt, Clauses);
     } else if (DKind == OMPD_target_update || DKind == OMPD_target_enter_data ||
                DKind == OMPD_target_exit_data) {
-      Actions.ActOnOpenMPRegionStart(DKind, getCurScope());
+      Actions.OpenMP().ActOnOpenMPRegionStart(DKind, getCurScope());
       AssociatedStmt = (Sema::CompoundScopeRAII(Actions),
                         Actions.ActOnCompoundStmt(Loc, Loc, std::nullopt,
                                                   /*isStmtExpr=*/false));
-      AssociatedStmt = Actions.ActOnOpenMPRegionEnd(AssociatedStmt, Clauses);
+      AssociatedStmt =
+          Actions.OpenMP().ActOnOpenMPRegionEnd(AssociatedStmt, Clauses);
     }
-    Directive = Actions.ActOnOpenMPExecutableDirective(
+    Directive = Actions.OpenMP().ActOnOpenMPExecutableDirective(
         DKind, DirName, CancelRegion, Clauses, AssociatedStmt.get(), Loc,
         EndLoc);
 
     // Exit scope.
-    Actions.EndOpenMPDSABlock(Directive.get());
+    Actions.OpenMP().EndOpenMPDSABlock(Directive.get());
     OMPDirectiveScope.Exit();
     break;
   }
   case OMPD_declare_target: {
     SourceLocation DTLoc = ConsumeAnyToken();
     bool HasClauses = Tok.isNot(tok::annot_pragma_openmp_end);
-    Sema::DeclareTargetContextInfo DTCI(DKind, DTLoc);
+    SemaOpenMP::DeclareTargetContextInfo DTCI(DKind, DTLoc);
     if (HasClauses)
       ParseOMPDeclareTargetClauses(DTCI);
     bool HasImplicitMappings =
@@ -3003,7 +3018,7 @@ StmtResult Parser::ParseOpenMPDeclarativeOrExecutableDirective(
     // Skip the last annot_pragma_openmp_end.
     ConsumeAnyToken();
 
-    Actions.ActOnFinishedOpenMPDeclareTargetContext(DTCI);
+    Actions.OpenMP().ActOnFinishedOpenMPDeclareTargetContext(DTCI);
     break;
   }
   case OMPD_declare_simd:
@@ -3118,7 +3133,7 @@ OMPClause *Parser::ParseOpenMPSizesClause() {
 
   T.consumeClose();
 
-  return Actions.ActOnOpenMPSizesClause(
+  return Actions.OpenMP().ActOnOpenMPSizesClause(
       ValExprs, ClauseNameLoc, T.getOpenLocation(), T.getCloseLocation());
 }
 
@@ -3130,7 +3145,7 @@ OMPClause *Parser::ParseOpenMPUsesAllocatorClause(OpenMPDirectiveKind DKind) {
   BalancedDelimiterTracker T(*this, tok::l_paren, tok::annot_pragma_openmp_end);
   if (T.expectAndConsume(diag::err_expected_lparen_after, "uses_allocator"))
     return nullptr;
-  SmallVector<Sema::UsesAllocatorsData, 4> Data;
+  SmallVector<SemaOpenMP::UsesAllocatorsData, 4> Data;
   do {
     CXXScopeSpec SS;
     Token Replacement;
@@ -3144,7 +3159,7 @@ OMPClause *Parser::ParseOpenMPUsesAllocatorClause(OpenMPDirectiveKind DKind) {
                 StopBeforeMatch);
       break;
     }
-    Sema::UsesAllocatorsData &D = Data.emplace_back();
+    SemaOpenMP::UsesAllocatorsData &D = Data.emplace_back();
     D.Allocator = Allocator.get();
     if (Tok.is(tok::l_paren)) {
       BalancedDelimiterTracker T(*this, tok::l_paren,
@@ -3169,8 +3184,8 @@ OMPClause *Parser::ParseOpenMPUsesAllocatorClause(OpenMPDirectiveKind DKind) {
       ConsumeAnyToken();
   } while (Tok.isNot(tok::r_paren) && Tok.isNot(tok::annot_pragma_openmp_end));
   T.consumeClose();
-  return Actions.ActOnOpenMPUsesAllocatorClause(Loc, T.getOpenLocation(),
-                                                T.getCloseLocation(), Data);
+  return Actions.OpenMP().ActOnOpenMPUsesAllocatorClause(
+      Loc, T.getOpenLocation(), T.getCloseLocation(), Data);
 }
 
 /// Parsing of OpenMP clauses.
@@ -3538,15 +3553,16 @@ OMPClause *Parser::ParseOpenMPSingleExprClause(OpenMPClauseKind Kind,
 
   if (ParseOnly)
     return nullptr;
-  return Actions.ActOnOpenMPSingleExprClause(Kind, Val.get(), Loc, LLoc, RLoc);
+  return Actions.OpenMP().ActOnOpenMPSingleExprClause(Kind, Val.get(), Loc,
+                                                      LLoc, RLoc);
 }
 
 /// Parse indirect clause for '#pragma omp declare target' directive.
 ///  'indirect' '[' '(' invoked-by-fptr ')' ']'
 /// where invoked-by-fptr is a constant boolean expression that evaluates to
 /// true or false at compile time.
-bool Parser::ParseOpenMPIndirectClause(Sema::DeclareTargetContextInfo &DTCI,
-                                       bool ParseOnly) {
+bool Parser::ParseOpenMPIndirectClause(
+    SemaOpenMP::DeclareTargetContextInfo &DTCI, bool ParseOnly) {
   SourceLocation Loc = ConsumeToken();
   SourceLocation RLoc;
 
@@ -3721,15 +3737,16 @@ OMPClause *Parser::ParseOpenMPInteropClause(OpenMPClauseKind Kind,
     return nullptr;
 
   if (Kind == OMPC_init)
-    return Actions.ActOnOpenMPInitClause(InteropVarExpr.get(), InteropInfo, Loc,
-                                         T.getOpenLocation(), VarLoc, RLoc);
+    return Actions.OpenMP().ActOnOpenMPInitClause(
+        InteropVarExpr.get(), InteropInfo, Loc, T.getOpenLocation(), VarLoc,
+        RLoc);
   if (Kind == OMPC_use)
-    return Actions.ActOnOpenMPUseClause(InteropVarExpr.get(), Loc,
-                                        T.getOpenLocation(), VarLoc, RLoc);
+    return Actions.OpenMP().ActOnOpenMPUseClause(
+        InteropVarExpr.get(), Loc, T.getOpenLocation(), VarLoc, RLoc);
 
   if (Kind == OMPC_destroy)
-    return Actions.ActOnOpenMPDestroyClause(InteropVarExpr.get(), Loc,
-                                            T.getOpenLocation(), VarLoc, RLoc);
+    return Actions.OpenMP().ActOnOpenMPDestroyClause(
+        InteropVarExpr.get(), Loc, T.getOpenLocation(), VarLoc, RLoc);
 
   llvm_unreachable("Unexpected interop variable clause.");
 }
@@ -3787,8 +3804,8 @@ OMPClause *Parser::ParseOpenMPOMPXAttributesClause(bool ParseOnly) {
     };
   }
 
-  return Actions.ActOnOpenMPXAttributeClause(Attrs, Loc, T.getOpenLocation(),
-                                             T.getCloseLocation());
+  return Actions.OpenMP().ActOnOpenMPXAttributeClause(
+      Attrs, Loc, T.getOpenLocation(), T.getCloseLocation());
 }
 
 /// Parsing of simple OpenMP clauses like 'default' or 'proc_bind'.
@@ -3823,9 +3840,8 @@ OMPClause *Parser::ParseOpenMPSimpleClause(OpenMPClauseKind Kind,
         << getOpenMPClauseName(OMPC_default) << "5.1";
     return nullptr;
   }
-  return Actions.ActOnOpenMPSimpleClause(Kind, Val->Type,
-                                         Val->TypeLoc, Val->LOpen,
-                                         Val->Loc, Val->RLoc);
+  return Actions.OpenMP().ActOnOpenMPSimpleClause(
+      Kind, Val->Type, Val->TypeLoc, Val->LOpen, Val->Loc, Val->RLoc);
 }
 
 /// Parsing of OpenMP clauses like 'ordered'.
@@ -3860,7 +3876,7 @@ OMPClause *Parser::ParseOpenMPClause(OpenMPClauseKind Kind, bool ParseOnly) {
 
   if (ParseOnly)
     return nullptr;
-  return Actions.ActOnOpenMPClause(Kind, Loc, Tok.getLocation());
+  return Actions.OpenMP().ActOnOpenMPClause(Kind, Loc, Tok.getLocation());
 }
 
 /// Parsing of OpenMP clauses with single expressions and some additional
@@ -4118,7 +4134,7 @@ OMPClause *Parser::ParseOpenMPSingleExprWithArgClause(OpenMPDirectiveKind DKind,
 
   if (ParseOnly)
     return nullptr;
-  return Actions.ActOnOpenMPSingleExprWithArgClause(
+  return Actions.OpenMP().ActOnOpenMPSingleExprWithArgClause(
       Kind, Arg, Val.get(), Loc, T.getOpenLocation(), KLoc, DelimLoc, RLoc);
 }
 
@@ -4184,7 +4200,7 @@ static OpenMPMapModifierKind isMapModifier(Parser &P) {
 }
 
 /// Parse the mapper modifier in map, to, and from clauses.
-bool Parser::parseMapperModifier(Sema::OpenMPVarListDataTy &Data) {
+bool Parser::parseMapperModifier(SemaOpenMP::OpenMPVarListDataTy &Data) {
   // Parse '('.
   BalancedDelimiterTracker T(*this, tok::l_paren, tok::colon);
   if (T.expectAndConsume(diag::err_expected_lparen_after, "mapper")) {
@@ -4216,7 +4232,7 @@ bool Parser::parseMapperModifier(Sema::OpenMPVarListDataTy &Data) {
 /// map([ [map-type-modifier[,] [map-type-modifier[,] ...] map-type : ] list)
 /// where, map-type-modifier ::= always | close | mapper(mapper-identifier) |
 /// present
-bool Parser::parseMapTypeModifiers(Sema::OpenMPVarListDataTy &Data) {
+bool Parser::parseMapTypeModifiers(SemaOpenMP::OpenMPVarListDataTy &Data) {
   while (getCurToken().isNot(tok::colon)) {
     OpenMPMapModifierKind TypeModifier = isMapModifier(*this);
     if (TypeModifier == OMPC_MAP_MODIFIER_always ||
@@ -4282,7 +4298,7 @@ static OpenMPMapClauseKind isMapType(Parser &P) {
 /// Parse map-type in map clause.
 /// map([ [map-type-modifier[,] [map-type-modifier[,] ...] map-type : ] list)
 /// where, map-type ::= to | from | tofrom | alloc | release | delete
-static void parseMapType(Parser &P, Sema::OpenMPVarListDataTy &Data) {
+static void parseMapType(Parser &P, SemaOpenMP::OpenMPVarListDataTy &Data) {
   Token Tok = P.getCurToken();
   if (Tok.is(tok::colon)) {
     P.Diag(Tok, diag::err_omp_map_type_missing);
@@ -4306,7 +4322,7 @@ ExprResult Parser::ParseOpenMPIteratorsExpr() {
     return ExprError();
 
   SourceLocation LLoc = T.getOpenLocation();
-  SmallVector<Sema::OMPIteratorData, 4> Data;
+  SmallVector<SemaOpenMP::OMPIteratorData, 4> Data;
   while (Tok.isNot(tok::r_paren) && Tok.isNot(tok::annot_pragma_openmp_end)) {
     // Check if the type parsing is required.
     ParsedType IteratorType;
@@ -4380,7 +4396,7 @@ ExprResult Parser::ParseOpenMPIteratorsExpr() {
     if (Tok.is(tok::comma))
       ConsumeToken();
 
-    Sema::OMPIteratorData &D = Data.emplace_back();
+    SemaOpenMP::OMPIteratorData &D = Data.emplace_back();
     D.DeclIdent = II;
     D.DeclIdentLoc = IdLoc;
     D.Type = IteratorType;
@@ -4397,12 +4413,12 @@ ExprResult Parser::ParseOpenMPIteratorsExpr() {
   if (!T.consumeClose())
     RLoc = T.getCloseLocation();
 
-  return Actions.ActOnOMPIteratorExpr(getCurScope(), IteratorKwLoc, LLoc, RLoc,
-                                      Data);
+  return Actions.OpenMP().ActOnOMPIteratorExpr(getCurScope(), IteratorKwLoc,
+                                               LLoc, RLoc, Data);
 }
 
 bool Parser::ParseOpenMPReservedLocator(OpenMPClauseKind Kind,
-                                        Sema::OpenMPVarListDataTy &Data,
+                                        SemaOpenMP::OpenMPVarListDataTy &Data,
                                         const LangOptions &LangOpts) {
   // Currently the only reserved locator is 'omp_all_memory' which is only
   // allowed on a depend clause.
@@ -4430,7 +4446,7 @@ bool Parser::ParseOpenMPReservedLocator(OpenMPClauseKind Kind,
 
 /// Parse step size expression. Returns true if parsing is successfull,
 /// otherwise returns false.
-static bool parseStepSize(Parser &P, Sema::OpenMPVarListDataTy &Data,
+static bool parseStepSize(Parser &P, SemaOpenMP::OpenMPVarListDataTy &Data,
                           OpenMPClauseKind CKind, SourceLocation ELoc) {
   ExprResult Tail = P.ParseAssignmentExpression();
   Sema &Actions = P.getActions();
@@ -4451,7 +4467,7 @@ static bool parseStepSize(Parser &P, Sema::OpenMPVarListDataTy &Data,
 bool Parser::ParseOpenMPVarList(OpenMPDirectiveKind DKind,
                                 OpenMPClauseKind Kind,
                                 SmallVectorImpl<Expr *> &Vars,
-                                Sema::OpenMPVarListDataTy &Data) {
+                                SemaOpenMP::OpenMPVarListDataTy &Data) {
   UnqualifiedId UnqualifiedReductionId;
   bool InvalidReductionId = false;
   bool IsInvalidMapperModifier = false;
@@ -4961,7 +4977,7 @@ OMPClause *Parser::ParseOpenMPVarListClause(OpenMPDirectiveKind DKind,
   SourceLocation Loc = Tok.getLocation();
   SourceLocation LOpen = ConsumeToken();
   SmallVector<Expr *, 4> Vars;
-  Sema::OpenMPVarListDataTy Data;
+  SemaOpenMP::OpenMPVarListDataTy Data;
 
   if (ParseOpenMPVarList(DKind, Kind, Vars, Data))
     return nullptr;
@@ -4969,5 +4985,5 @@ OMPClause *Parser::ParseOpenMPVarListClause(OpenMPDirectiveKind DKind,
   if (ParseOnly)
     return nullptr;
   OMPVarListLocTy Locs(Loc, LOpen, Data.RLoc);
-  return Actions.ActOnOpenMPVarListClause(Kind, Vars, Locs, Data);
+  return Actions.OpenMP().ActOnOpenMPVarListClause(Kind, Vars, Locs, Data);
 }
diff --git a/clang/lib/Parse/ParseStmt.cpp b/clang/lib/Parse/ParseStmt.cpp
index 76a3fa8..629421c 100644
--- a/clang/lib/Parse/ParseStmt.cpp
+++ b/clang/lib/Parse/ParseStmt.cpp
@@ -22,6 +22,7 @@
 #include "clang/Sema/DeclSpec.h"
 #include "clang/Sema/EnterExpressionEvaluationContext.h"
 #include "clang/Sema/Scope.h"
+#include "clang/Sema/SemaOpenMP.h"
 #include "clang/Sema/TypoCorrection.h"
 #include "llvm/ADT/STLExtras.h"
 #include <optional>
@@ -2301,7 +2302,7 @@ StmtResult Parser::ParseForStatement(SourceLocation *TrailingElseLoc) {
     // In OpenMP loop region loop control variable must be captured and be
     // private. Perform analysis of first part (if any).
     if (getLangOpts().OpenMP && FirstPart.isUsable()) {
-      Actions.ActOnOpenMPLoopInitialization(ForLoc, FirstPart.get());
+      Actions.OpenMP().ActOnOpenMPLoopInitialization(ForLoc, FirstPart.get());
     }
   }
 
diff --git a/clang/lib/Sema/Sema.cpp b/clang/lib/Sema/Sema.cpp
index 8de202f..a1e32d3 100644
--- a/clang/lib/Sema/Sema.cpp
+++ b/clang/lib/Sema/Sema.cpp
@@ -46,6 +46,7 @@
 #include "clang/Sema/SemaHLSL.h"
 #include "clang/Sema/SemaInternal.h"
 #include "clang/Sema/SemaOpenACC.h"
+#include "clang/Sema/SemaOpenMP.h"
 #include "clang/Sema/SemaSYCL.h"
 #include "clang/Sema/TemplateDeduction.h"
 #include "clang/Sema/TemplateInstCallback.h"
@@ -203,6 +204,7 @@ Sema::Sema(Preprocessor &pp, ASTContext &ctxt, ASTConsumer &consumer,
       CUDAPtr(std::make_unique<SemaCUDA>(*this)),
       HLSLPtr(std::make_unique<SemaHLSL>(*this)),
       OpenACCPtr(std::make_unique<SemaOpenACC>(*this)),
+      OpenMPPtr(std::make_unique<SemaOpenMP>(*this)),
       SYCLPtr(std::make_unique<SemaSYCL>(*this)),
       MSPointerToMemberRepresentationMethod(
           LangOpts.getMSPointerToMemberRepresentationMethod()),
@@ -226,8 +228,7 @@ Sema::Sema(Preprocessor &pp, ASTContext &ctxt, ASTConsumer &consumer,
       StringWithUTF8StringMethod(nullptr),
       ValueWithBytesObjCTypeMethod(nullptr), NSArrayDecl(nullptr),
       ArrayWithObjectsMethod(nullptr), NSDictionaryDecl(nullptr),
-      DictionaryWithObjectsMethod(nullptr), CodeCompleter(CodeCompleter),
-      VarDataSharingAttributesStack(nullptr) {
+      DictionaryWithObjectsMethod(nullptr), CodeCompleter(CodeCompleter) {
   assert(pp.TUKind == TUKind);
   TUScope = nullptr;
 
@@ -252,7 +253,7 @@ Sema::Sema(Preprocessor &pp, ASTContext &ctxt, ASTConsumer &consumer,
       nullptr, ExpressionEvaluationContextRecord::EK_Other);
 
   // Initialization of data sharing attributes stack for OpenMP
-  InitDataSharingAttributesStack();
+  OpenMP().InitDataSharingAttributesStack();
 
   std::unique_ptr<sema::SemaPPCallbacks> Callbacks =
       std::make_unique<sema::SemaPPCallbacks>();
@@ -501,7 +502,7 @@ Sema::~Sema() {
   threadSafety::threadSafetyCleanup(ThreadSafetyDeclCache);
 
   // Destroys data sharing attributes stack for OpenMP
-  DestroyDataSharingAttributesStack();
+  OpenMP().DestroyDataSharingAttributesStack();
 
   // Detach from the PP callback handler which outlives Sema since it's owned
   // by the preprocessor.
@@ -1159,7 +1160,7 @@ void Sema::ActOnEndOfTranslationUnit() {
 
   DiagnoseUnterminatedPragmaAlignPack();
   DiagnoseUnterminatedPragmaAttribute();
-  DiagnoseUnterminatedOpenMPDeclareTarget();
+  OpenMP().DiagnoseUnterminatedOpenMPDeclareTarget();
 
   // All delayed member exception specs should be checked or we end up accepting
   // incompatible declarations.
@@ -1747,7 +1748,7 @@ public:
     // Finalize analysis of OpenMP-specific constructs.
     if (Caller && S.LangOpts.OpenMP && UsePath.size() == 1 &&
         (ShouldEmitRootNode || InOMPDeviceContext))
-      S.finalizeOpenMPDelayedAnalysis(Caller, FD, Loc);
+      S.OpenMP().finalizeOpenMPDelayedAnalysis(Caller, FD, Loc);
     if (Caller)
       S.CUDA().DeviceKnownEmittedFns[FD] = {Caller, Loc};
     // Always emit deferred diagnostics for the direct users. This does not
@@ -1899,8 +1900,8 @@ Sema::targetDiag(SourceLocation Loc, unsigned DiagID, const FunctionDecl *FD) {
   FD = FD ? FD : getCurFunctionDecl();
   if (LangOpts.OpenMP)
     return LangOpts.OpenMPIsTargetDevice
-               ? diagIfOpenMPDeviceCode(Loc, DiagID, FD)
-               : diagIfOpenMPHostCode(Loc, DiagID, FD);
+               ? OpenMP().diagIfOpenMPDeviceCode(Loc, DiagID, FD)
+               : OpenMP().diagIfOpenMPHostCode(Loc, DiagID, FD);
   if (getLangOpts().CUDA)
     return getLangOpts().CUDAIsDevice ? CUDA().DiagIfDeviceCode(Loc, DiagID)
                                       : CUDA().DiagIfHostCode(Loc, DiagID);
@@ -2131,7 +2132,7 @@ void Sema::PushFunctionScope() {
     FunctionScopes.push_back(new FunctionScopeInfo(getDiagnostics()));
   }
   if (LangOpts.OpenMP)
-    pushOpenMPFunctionRegion();
+    OpenMP().pushOpenMPFunctionRegion();
 }
 
 void Sema::PushBlockScope(Scope *BlockScope, BlockDecl *Block) {
@@ -2251,7 +2252,7 @@ Sema::PopFunctionScopeInfo(const AnalysisBasedWarnings::Policy *WP,
                                PoppedFunctionScopeDeleter(this));
 
   if (LangOpts.OpenMP)
-    popOpenMPFunctionRegion(Scope.get());
+    OpenMP().popOpenMPFunctionRegion(Scope.get());
 
   // Issue any analysis-based warnings.
   if (WP && D)
@@ -2687,7 +2688,9 @@ void Sema::PushCapturedRegionScope(Scope *S, CapturedDecl *CD, RecordDecl *RD,
                                    unsigned OpenMPCaptureLevel) {
   auto *CSI = new CapturedRegionScopeInfo(
       getDiagnostics(), S, CD, RD, CD->getContextParam(), K,
-      (getLangOpts().OpenMP && K == CR_OpenMP) ? getOpenMPNestingLevel() : 0,
+      (getLangOpts().OpenMP && K == CR_OpenMP)
+          ? OpenMP().getOpenMPNestingLevel()
+          : 0,
       OpenMPCaptureLevel);
   CSI->ReturnType = Context.VoidTy;
   FunctionScopes.push_back(CSI);
diff --git a/clang/lib/Sema/SemaDecl.cpp b/clang/lib/Sema/SemaDecl.cpp
index 8b3b9d0..390da50 100644
--- a/clang/lib/Sema/SemaDecl.cpp
+++ b/clang/lib/Sema/SemaDecl.cpp
@@ -48,6 +48,7 @@
 #include "clang/Sema/SemaCUDA.h"
 #include "clang/Sema/SemaHLSL.h"
 #include "clang/Sema/SemaInternal.h"
+#include "clang/Sema/SemaOpenMP.h"
 #include "clang/Sema/Template.h"
 #include "llvm/ADT/STLForwardCompat.h"
 #include "llvm/ADT/SmallString.h"
@@ -6168,11 +6169,12 @@ Decl *Sema::ActOnDeclarator(Scope *S, Declarator &D) {
   // Check if we are in an `omp begin/end declare variant` scope. Handle this
   // declaration only if the `bind_to_declaration` extension is set.
   SmallVector<FunctionDecl *, 4> Bases;
-  if (LangOpts.OpenMP && isInOpenMPDeclareVariantScope())
-    if (getOMPTraitInfoForSurroundingScope()->isExtensionActive(llvm::omp::TraitProperty::
-              implementation_extension_bind_to_declaration))
-    ActOnStartOfFunctionDefinitionInOpenMPDeclareVariantScope(
-        S, D, MultiTemplateParamsArg(), Bases);
+  if (LangOpts.OpenMP && OpenMP().isInOpenMPDeclareVariantScope())
+    if (OpenMP().getOMPTraitInfoForSurroundingScope()->isExtensionActive(
+            llvm::omp::TraitProperty::
+                implementation_extension_bind_to_declaration))
+      OpenMP().ActOnStartOfFunctionDefinitionInOpenMPDeclareVariantScope(
+          S, D, MultiTemplateParamsArg(), Bases);
 
   Decl *Dcl = HandleDeclarator(S, D, MultiTemplateParamsArg());
 
@@ -6181,7 +6183,8 @@ Decl *Sema::ActOnDeclarator(Scope *S, Declarator &D) {
     Dcl->setTopLevelDeclInObjCContainer();
 
   if (!Bases.empty())
-    ActOnFinishedFunctionDefinitionInOpenMPDeclareVariantScope(Dcl, Bases);
+    OpenMP().ActOnFinishedFunctionDefinitionInOpenMPDeclareVariantScope(Dcl,
+                                                                        Bases);
 
   return Dcl;
 }
@@ -6568,8 +6571,8 @@ NamedDecl *Sema::HandleDeclarator(Scope *S, Declarator &D,
   if (New->getDeclName() && AddToScope)
     PushOnScopeChains(New, S);
 
-  if (isInOpenMPDeclareTargetContext())
-    checkDeclIsAllowedInOpenMPTarget(nullptr, New);
+  if (OpenMP().isInOpenMPDeclareTargetContext())
+    OpenMP().checkDeclIsAllowedInOpenMPTarget(nullptr, New);
 
   return New;
 }
@@ -12268,7 +12271,7 @@ bool Sema::CheckFunctionDeclaration(Scope *S, FunctionDecl *NewFD,
   }
 
   if (LangOpts.OpenMP)
-    ActOnFinishedFunctionDefinitionInOpenMPAssumeScope(NewFD);
+    OpenMP().ActOnFinishedFunctionDefinitionInOpenMPAssumeScope(NewFD);
 
   // Semantic checking for this function declaration (in isolation).
 
@@ -14956,7 +14959,7 @@ Sema::DeclGroupPtrTy Sema::FinalizeDeclaratorGroup(Scope *S, const DeclSpec &DS,
       if (auto *VD = dyn_cast<VarDecl>(D);
           LangOpts.OpenMP && VD && VD->hasAttr<OMPDeclareTargetDeclAttr>() &&
           VD->hasGlobalStorage())
-        ActOnOpenMPDeclareTargetInitializer(D);
+        OpenMP().ActOnOpenMPDeclareTargetInitializer(D);
       // For declarators, there are some additional syntactic-ish checks we need
       // to perform.
       if (auto *DD = dyn_cast<DeclaratorDecl>(D)) {
@@ -15495,8 +15498,8 @@ Sema::ActOnStartOfFunctionDef(Scope *FnBodyScope, Declarator &D,
   // specialization function under the OpenMP context defined as part of the
   // `omp begin declare variant`.
   SmallVector<FunctionDecl *, 4> Bases;
-  if (LangOpts.OpenMP && isInOpenMPDeclareVariantScope())
-    ActOnStartOfFunctionDefinitionInOpenMPDeclareVariantScope(
+  if (LangOpts.OpenMP && OpenMP().isInOpenMPDeclareVariantScope())
+    OpenMP().ActOnStartOfFunctionDefinitionInOpenMPDeclareVariantScope(
         ParentScope, D, TemplateParameterLists, Bases);
 
   D.setFunctionDefinitionKind(FunctionDefinitionKind::Definition);
@@ -15504,7 +15507,8 @@ Sema::ActOnStartOfFunctionDef(Scope *FnBodyScope, Declarator &D,
   Decl *Dcl = ActOnStartOfFunctionDef(FnBodyScope, DP, SkipBody, BodyKind);
 
   if (!Bases.empty())
-    ActOnFinishedFunctionDefinitionInOpenMPDeclareVariantScope(Dcl, Bases);
+    OpenMP().ActOnFinishedFunctionDefinitionInOpenMPDeclareVariantScope(Dcl,
+                                                                        Bases);
 
   return Dcl;
 }
@@ -20651,7 +20655,7 @@ Sema::FunctionEmissionStatus Sema::getEmissionStatus(const FunctionDecl *FD,
         return FunctionEmissionStatus::OMPDiscarded;
     // If we have an explicit value for the device type, or we are in a target
     // declare context, we need to emit all extern and used symbols.
-    if (isInOpenMPDeclareTargetContext() || DevTy)
+    if (OpenMP().isInOpenMPDeclareTargetContext() || DevTy)
       if (IsEmittedForExternalSymbol())
         return FunctionEmissionStatus::Emitted;
     // Device mode only emits what it must, if it wasn't tagged yet and needed,
diff --git a/clang/lib/Sema/SemaDeclCXX.cpp b/clang/lib/Sema/SemaDeclCXX.cpp
index 7669171..8c6bae5 100644
--- a/clang/lib/Sema/SemaDeclCXX.cpp
+++ b/clang/lib/Sema/SemaDeclCXX.cpp
@@ -44,6 +44,7 @@
 #include "clang/Sema/ScopeInfo.h"
 #include "clang/Sema/SemaCUDA.h"
 #include "clang/Sema/SemaInternal.h"
+#include "clang/Sema/SemaOpenMP.h"
 #include "clang/Sema/Template.h"
 #include "llvm/ADT/ArrayRef.h"
 #include "llvm/ADT/STLExtras.h"
@@ -962,8 +963,8 @@ Sema::ActOnDecompositionDeclarator(Scope *S, Declarator &D,
     CurContext->addHiddenDecl(New);
   }
 
-  if (isInOpenMPDeclareTargetContext())
-    checkDeclIsAllowedInOpenMPTarget(nullptr, New);
+  if (OpenMP().isInOpenMPDeclareTargetContext())
+    OpenMP().checkDeclIsAllowedInOpenMPTarget(nullptr, New);
 
   return New;
 }
@@ -18654,8 +18655,8 @@ void Sema::MarkVTableUsed(SourceLocation Loc, CXXRecordDecl *Class,
   // Do not mark as used if compiling for the device outside of the target
   // region.
   if (TUKind != TU_Prefix && LangOpts.OpenMP && LangOpts.OpenMPIsTargetDevice &&
-      !isInOpenMPDeclareTargetContext() &&
-      !isInOpenMPTargetExecutionDirective()) {
+      !OpenMP().isInOpenMPDeclareTargetContext() &&
+      !OpenMP().isInOpenMPTargetExecutionDirective()) {
     if (!DefinitionRequired)
       MarkVirtualMembersReferenced(Loc, Class);
     return;
diff --git a/clang/lib/Sema/SemaExpr.cpp b/clang/lib/Sema/SemaExpr.cpp
index 189764c..cabffa4 100644
--- a/clang/lib/Sema/SemaExpr.cpp
+++ b/clang/lib/Sema/SemaExpr.cpp
@@ -52,6 +52,7 @@
 #include "clang/Sema/SemaCUDA.h"
 #include "clang/Sema/SemaFixItUtils.h"
 #include "clang/Sema/SemaInternal.h"
+#include "clang/Sema/SemaOpenMP.h"
 #include "clang/Sema/Template.h"
 #include "llvm/ADT/STLExtras.h"
 #include "llvm/ADT/STLForwardCompat.h"
@@ -360,9 +361,9 @@ bool Sema::DiagnoseUseOfDecl(NamedDecl *D, ArrayRef<SourceLocation> Locs,
   //  at the same location.
   // [OpenMP 5.2] Also allow iterator declared variables.
   if (LangOpts.OpenMP && isa<VarDecl>(D) &&
-      !isOpenMPDeclareMapperVarDeclAllowed(cast<VarDecl>(D))) {
+      !OpenMP().isOpenMPDeclareMapperVarDeclAllowed(cast<VarDecl>(D))) {
     Diag(Loc, diag::err_omp_declare_mapper_wrong_var)
-        << getOpenMPDeclareMapperVarName();
+        << OpenMP().getOpenMPDeclareMapperVarName();
     Diag(D->getLocation(), diag::note_entity_declared_at) << D;
     return true;
   }
@@ -2267,7 +2268,7 @@ NonOdrUseReason Sema::getNonOdrUseReasonInCurrentContext(ValueDecl *D) {
   //   be loaded from the captured.
   if (VarDecl *VD = dyn_cast<VarDecl>(D)) {
     if (VD->getType()->isReferenceType() &&
-        !(getLangOpts().OpenMP && isOpenMPCapturedDecl(D)) &&
+        !(getLangOpts().OpenMP && OpenMP().isOpenMPCapturedDecl(D)) &&
         !isCapturingReferenceToHostVarInCUDADeviceLambda(*this, VD) &&
         VD->isUsableInConstantExpressions(Context))
       return NOUR_Constant;
@@ -5080,9 +5081,10 @@ ExprResult Sema::ActOnArraySubscriptExpr(Scope *S, Expr *base,
 
   if (base && !base->getType().isNull() &&
       base->hasPlaceholderType(BuiltinType::OMPArraySection))
-    return ActOnOMPArraySectionExpr(base, lbLoc, ArgExprs.front(), SourceLocation(),
-                                    SourceLocation(), /*Length*/ nullptr,
-                                    /*Stride=*/nullptr, rbLoc);
+    return OpenMP().ActOnOMPArraySectionExpr(base, lbLoc, ArgExprs.front(),
+                                             SourceLocation(), SourceLocation(),
+                                             /*Length*/ nullptr,
+                                             /*Stride=*/nullptr, rbLoc);
 
   // Since this might be a postfix expression, get rid of ParenListExprs.
   if (isa<ParenListExpr>(base)) {
@@ -5354,558 +5356,6 @@ void Sema::CheckSubscriptAccessOfNoDeref(const ArraySubscriptExpr *E) {
   }
 }
 
-ExprResult Sema::ActOnOMPArraySectionExpr(Expr *Base, SourceLocation LBLoc,
-                                          Expr *LowerBound,
-                                          SourceLocation ColonLocFirst,
-                                          SourceLocation ColonLocSecond,
-                                          Expr *Length, Expr *Stride,
-                                          SourceLocation RBLoc) {
-  if (Base->hasPlaceholderType() &&
-      !Base->hasPlaceholderType(BuiltinType::OMPArraySection)) {
-    ExprResult Result = CheckPlaceholderExpr(Base);
-    if (Result.isInvalid())
-      return ExprError();
-    Base = Result.get();
-  }
-  if (LowerBound && LowerBound->getType()->isNonOverloadPlaceholderType()) {
-    ExprResult Result = CheckPlaceholderExpr(LowerBound);
-    if (Result.isInvalid())
-      return ExprError();
-    Result = DefaultLvalueConversion(Result.get());
-    if (Result.isInvalid())
-      return ExprError();
-    LowerBound = Result.get();
-  }
-  if (Length && Length->getType()->isNonOverloadPlaceholderType()) {
-    ExprResult Result = CheckPlaceholderExpr(Length);
-    if (Result.isInvalid())
-      return ExprError();
-    Result = DefaultLvalueConversion(Result.get());
-    if (Result.isInvalid())
-      return ExprError();
-    Length = Result.get();
-  }
-  if (Stride && Stride->getType()->isNonOverloadPlaceholderType()) {
-    ExprResult Result = CheckPlaceholderExpr(Stride);
-    if (Result.isInvalid())
-      return ExprError();
-    Result = DefaultLvalueConversion(Result.get());
-    if (Result.isInvalid())
-      return ExprError();
-    Stride = Result.get();
-  }
-
-  // Build an unanalyzed expression if either operand is type-dependent.
-  if (Base->isTypeDependent() ||
-      (LowerBound &&
-       (LowerBound->isTypeDependent() || LowerBound->isValueDependent())) ||
-      (Length && (Length->isTypeDependent() || Length->isValueDependent())) ||
-      (Stride && (Stride->isTypeDependent() || Stride->isValueDependent()))) {
-    return new (Context) OMPArraySectionExpr(
-        Base, LowerBound, Length, Stride, Context.DependentTy, VK_LValue,
-        OK_Ordinary, ColonLocFirst, ColonLocSecond, RBLoc);
-  }
-
-  // Perform default conversions.
-  QualType OriginalTy = OMPArraySectionExpr::getBaseOriginalType(Base);
-  QualType ResultTy;
-  if (OriginalTy->isAnyPointerType()) {
-    ResultTy = OriginalTy->getPointeeType();
-  } else if (OriginalTy->isArrayType()) {
-    ResultTy = OriginalTy->getAsArrayTypeUnsafe()->getElementType();
-  } else {
-    return ExprError(
-        Diag(Base->getExprLoc(), diag::err_omp_typecheck_section_value)
-        << Base->getSourceRange());
-  }
-  // C99 6.5.2.1p1
-  if (LowerBound) {
-    auto Res = PerformOpenMPImplicitIntegerConversion(LowerBound->getExprLoc(),
-                                                      LowerBound);
-    if (Res.isInvalid())
-      return ExprError(Diag(LowerBound->getExprLoc(),
-                            diag::err_omp_typecheck_section_not_integer)
-                       << 0 << LowerBound->getSourceRange());
-    LowerBound = Res.get();
-
-    if (LowerBound->getType()->isSpecificBuiltinType(BuiltinType::Char_S) ||
-        LowerBound->getType()->isSpecificBuiltinType(BuiltinType::Char_U))
-      Diag(LowerBound->getExprLoc(), diag::warn_omp_section_is_char)
-          << 0 << LowerBound->getSourceRange();
-  }
-  if (Length) {
-    auto Res =
-        PerformOpenMPImplicitIntegerConversion(Length->getExprLoc(), Length);
-    if (Res.isInvalid())
-      return ExprError(Diag(Length->getExprLoc(),
-                            diag::err_omp_typecheck_section_not_integer)
-                       << 1 << Length->getSourceRange());
-    Length = Res.get();
-
-    if (Length->getType()->isSpecificBuiltinType(BuiltinType::Char_S) ||
-        Length->getType()->isSpecificBuiltinType(BuiltinType::Char_U))
-      Diag(Length->getExprLoc(), diag::warn_omp_section_is_char)
-          << 1 << Length->getSourceRange();
-  }
-  if (Stride) {
-    ExprResult Res =
-        PerformOpenMPImplicitIntegerConversion(Stride->getExprLoc(), Stride);
-    if (Res.isInvalid())
-      return ExprError(Diag(Stride->getExprLoc(),
-                            diag::err_omp_typecheck_section_not_integer)
-                       << 1 << Stride->getSourceRange());
-    Stride = Res.get();
-
-    if (Stride->getType()->isSpecificBuiltinType(BuiltinType::Char_S) ||
-        Stride->getType()->isSpecificBuiltinType(BuiltinType::Char_U))
-      Diag(Stride->getExprLoc(), diag::warn_omp_section_is_char)
-          << 1 << Stride->getSourceRange();
-  }
-
-  // C99 6.5.2.1p1: "shall have type "pointer to *object* type". Similarly,
-  // C++ [expr.sub]p1: The type "T" shall be a completely-defined object
-  // type. Note that functions are not objects, and that (in C99 parlance)
-  // incomplete types are not object types.
-  if (ResultTy->isFunctionType()) {
-    Diag(Base->getExprLoc(), diag::err_omp_section_function_type)
-        << ResultTy << Base->getSourceRange();
-    return ExprError();
-  }
-
-  if (RequireCompleteType(Base->getExprLoc(), ResultTy,
-                          diag::err_omp_section_incomplete_type, Base))
-    return ExprError();
-
-  if (LowerBound && !OriginalTy->isAnyPointerType()) {
-    Expr::EvalResult Result;
-    if (LowerBound->EvaluateAsInt(Result, Context)) {
-      // OpenMP 5.0, [2.1.5 Array Sections]
-      // The array section must be a subset of the original array.
-      llvm::APSInt LowerBoundValue = Result.Val.getInt();
-      if (LowerBoundValue.isNegative()) {
-        Diag(LowerBound->getExprLoc(), diag::err_omp_section_not_subset_of_array)
-            << LowerBound->getSourceRange();
-        return ExprError();
-      }
-    }
-  }
-
-  if (Length) {
-    Expr::EvalResult Result;
-    if (Length->EvaluateAsInt(Result, Context)) {
-      // OpenMP 5.0, [2.1.5 Array Sections]
-      // The length must evaluate to non-negative integers.
-      llvm::APSInt LengthValue = Result.Val.getInt();
-      if (LengthValue.isNegative()) {
-        Diag(Length->getExprLoc(), diag::err_omp_section_length_negative)
-            << toString(LengthValue, /*Radix=*/10, /*Signed=*/true)
-            << Length->getSourceRange();
-        return ExprError();
-      }
-    }
-  } else if (ColonLocFirst.isValid() &&
-             (OriginalTy.isNull() || (!OriginalTy->isConstantArrayType() &&
-                                      !OriginalTy->isVariableArrayType()))) {
-    // OpenMP 5.0, [2.1.5 Array Sections]
-    // When the size of the array dimension is not known, the length must be
-    // specified explicitly.
-    Diag(ColonLocFirst, diag::err_omp_section_length_undefined)
-        << (!OriginalTy.isNull() && OriginalTy->isArrayType());
-    return ExprError();
-  }
-
-  if (Stride) {
-    Expr::EvalResult Result;
-    if (Stride->EvaluateAsInt(Result, Context)) {
-      // OpenMP 5.0, [2.1.5 Array Sections]
-      // The stride must evaluate to a positive integer.
-      llvm::APSInt StrideValue = Result.Val.getInt();
-      if (!StrideValue.isStrictlyPositive()) {
-        Diag(Stride->getExprLoc(), diag::err_omp_section_stride_non_positive)
-            << toString(StrideValue, /*Radix=*/10, /*Signed=*/true)
-            << Stride->getSourceRange();
-        return ExprError();
-      }
-    }
-  }
-
-  if (!Base->hasPlaceholderType(BuiltinType::OMPArraySection)) {
-    ExprResult Result = DefaultFunctionArrayLvalueConversion(Base);
-    if (Result.isInvalid())
-      return ExprError();
-    Base = Result.get();
-  }
-  return new (Context) OMPArraySectionExpr(
-      Base, LowerBound, Length, Stride, Context.OMPArraySectionTy, VK_LValue,
-      OK_Ordinary, ColonLocFirst, ColonLocSecond, RBLoc);
-}
-
-ExprResult Sema::ActOnOMPArrayShapingExpr(Expr *Base, SourceLocation LParenLoc,
-                                          SourceLocation RParenLoc,
-                                          ArrayRef<Expr *> Dims,
-                                          ArrayRef<SourceRange> Brackets) {
-  if (Base->hasPlaceholderType()) {
-    ExprResult Result = CheckPlaceholderExpr(Base);
-    if (Result.isInvalid())
-      return ExprError();
-    Result = DefaultLvalueConversion(Result.get());
-    if (Result.isInvalid())
-      return ExprError();
-    Base = Result.get();
-  }
-  QualType BaseTy = Base->getType();
-  // Delay analysis of the types/expressions if instantiation/specialization is
-  // required.
-  if (!BaseTy->isPointerType() && Base->isTypeDependent())
-    return OMPArrayShapingExpr::Create(Context, Context.DependentTy, Base,
-                                       LParenLoc, RParenLoc, Dims, Brackets);
-  if (!BaseTy->isPointerType() ||
-      (!Base->isTypeDependent() &&
-       BaseTy->getPointeeType()->isIncompleteType()))
-    return ExprError(Diag(Base->getExprLoc(),
-                          diag::err_omp_non_pointer_type_array_shaping_base)
-                     << Base->getSourceRange());
-
-  SmallVector<Expr *, 4> NewDims;
-  bool ErrorFound = false;
-  for (Expr *Dim : Dims) {
-    if (Dim->hasPlaceholderType()) {
-      ExprResult Result = CheckPlaceholderExpr(Dim);
-      if (Result.isInvalid()) {
-        ErrorFound = true;
-        continue;
-      }
-      Result = DefaultLvalueConversion(Result.get());
-      if (Result.isInvalid()) {
-        ErrorFound = true;
-        continue;
-      }
-      Dim = Result.get();
-    }
-    if (!Dim->isTypeDependent()) {
-      ExprResult Result =
-          PerformOpenMPImplicitIntegerConversion(Dim->getExprLoc(), Dim);
-      if (Result.isInvalid()) {
-        ErrorFound = true;
-        Diag(Dim->getExprLoc(), diag::err_omp_typecheck_shaping_not_integer)
-            << Dim->getSourceRange();
-        continue;
-      }
-      Dim = Result.get();
-      Expr::EvalResult EvResult;
-      if (!Dim->isValueDependent() && Dim->EvaluateAsInt(EvResult, Context)) {
-        // OpenMP 5.0, [2.1.4 Array Shaping]
-        // Each si is an integral type expression that must evaluate to a
-        // positive integer.
-        llvm::APSInt Value = EvResult.Val.getInt();
-        if (!Value.isStrictlyPositive()) {
-          Diag(Dim->getExprLoc(), diag::err_omp_shaping_dimension_not_positive)
-              << toString(Value, /*Radix=*/10, /*Signed=*/true)
-              << Dim->getSourceRange();
-          ErrorFound = true;
-          continue;
-        }
-      }
-    }
-    NewDims.push_back(Dim);
-  }
-  if (ErrorFound)
-    return ExprError();
-  return OMPArrayShapingExpr::Create(Context, Context.OMPArrayShapingTy, Base,
-                                     LParenLoc, RParenLoc, NewDims, Brackets);
-}
-
-ExprResult Sema::ActOnOMPIteratorExpr(Scope *S, SourceLocation IteratorKwLoc,
-                                      SourceLocation LLoc, SourceLocation RLoc,
-                                      ArrayRef<OMPIteratorData> Data) {
-  SmallVector<OMPIteratorExpr::IteratorDefinition, 4> ID;
-  bool IsCorrect = true;
-  for (const OMPIteratorData &D : Data) {
-    TypeSourceInfo *TInfo = nullptr;
-    SourceLocation StartLoc;
-    QualType DeclTy;
-    if (!D.Type.getAsOpaquePtr()) {
-      // OpenMP 5.0, 2.1.6 Iterators
-      // In an iterator-specifier, if the iterator-type is not specified then
-      // the type of that iterator is of int type.
-      DeclTy = Context.IntTy;
-      StartLoc = D.DeclIdentLoc;
-    } else {
-      DeclTy = GetTypeFromParser(D.Type, &TInfo);
-      StartLoc = TInfo->getTypeLoc().getBeginLoc();
-    }
-
-    bool IsDeclTyDependent = DeclTy->isDependentType() ||
-                             DeclTy->containsUnexpandedParameterPack() ||
-                             DeclTy->isInstantiationDependentType();
-    if (!IsDeclTyDependent) {
-      if (!DeclTy->isIntegralType(Context) && !DeclTy->isAnyPointerType()) {
-        // OpenMP 5.0, 2.1.6 Iterators, Restrictions, C/C++
-        // The iterator-type must be an integral or pointer type.
-        Diag(StartLoc, diag::err_omp_iterator_not_integral_or_pointer)
-            << DeclTy;
-        IsCorrect = false;
-        continue;
-      }
-      if (DeclTy.isConstant(Context)) {
-        // OpenMP 5.0, 2.1.6 Iterators, Restrictions, C/C++
-        // The iterator-type must not be const qualified.
-        Diag(StartLoc, diag::err_omp_iterator_not_integral_or_pointer)
-            << DeclTy;
-        IsCorrect = false;
-        continue;
-      }
-    }
-
-    // Iterator declaration.
-    assert(D.DeclIdent && "Identifier expected.");
-    // Always try to create iterator declarator to avoid extra error messages
-    // about unknown declarations use.
-    auto *VD = VarDecl::Create(Context, CurContext, StartLoc, D.DeclIdentLoc,
-                               D.DeclIdent, DeclTy, TInfo, SC_None);
-    VD->setImplicit();
-    if (S) {
-      // Check for conflicting previous declaration.
-      DeclarationNameInfo NameInfo(VD->getDeclName(), D.DeclIdentLoc);
-      LookupResult Previous(*this, NameInfo, LookupOrdinaryName,
-                            ForVisibleRedeclaration);
-      Previous.suppressDiagnostics();
-      LookupName(Previous, S);
-
-      FilterLookupForScope(Previous, CurContext, S, /*ConsiderLinkage=*/false,
-                           /*AllowInlineNamespace=*/false);
-      if (!Previous.empty()) {
-        NamedDecl *Old = Previous.getRepresentativeDecl();
-        Diag(D.DeclIdentLoc, diag::err_redefinition) << VD->getDeclName();
-        Diag(Old->getLocation(), diag::note_previous_definition);
-      } else {
-        PushOnScopeChains(VD, S);
-      }
-    } else {
-      CurContext->addDecl(VD);
-    }
-
-    /// Act on the iterator variable declaration.
-    ActOnOpenMPIteratorVarDecl(VD);
-
-    Expr *Begin = D.Range.Begin;
-    if (!IsDeclTyDependent && Begin && !Begin->isTypeDependent()) {
-      ExprResult BeginRes =
-          PerformImplicitConversion(Begin, DeclTy, AA_Converting);
-      Begin = BeginRes.get();
-    }
-    Expr *End = D.Range.End;
-    if (!IsDeclTyDependent && End && !End->isTypeDependent()) {
-      ExprResult EndRes = PerformImplicitConversion(End, DeclTy, AA_Converting);
-      End = EndRes.get();
-    }
-    Expr *Step = D.Range.Step;
-    if (!IsDeclTyDependent && Step && !Step->isTypeDependent()) {
-      if (!Step->getType()->isIntegralType(Context)) {
-        Diag(Step->getExprLoc(), diag::err_omp_iterator_step_not_integral)
-            << Step << Step->getSourceRange();
-        IsCorrect = false;
-        continue;
-      }
-      std::optional<llvm::APSInt> Result =
-          Step->getIntegerConstantExpr(Context);
-      // OpenMP 5.0, 2.1.6 Iterators, Restrictions
-      // If the step expression of a range-specification equals zero, the
-      // behavior is unspecified.
-      if (Result && Result->isZero()) {
-        Diag(Step->getExprLoc(), diag::err_omp_iterator_step_constant_zero)
-            << Step << Step->getSourceRange();
-        IsCorrect = false;
-        continue;
-      }
-    }
-    if (!Begin || !End || !IsCorrect) {
-      IsCorrect = false;
-      continue;
-    }
-    OMPIteratorExpr::IteratorDefinition &IDElem = ID.emplace_back();
-    IDElem.IteratorDecl = VD;
-    IDElem.AssignmentLoc = D.AssignLoc;
-    IDElem.Range.Begin = Begin;
-    IDElem.Range.End = End;
-    IDElem.Range.Step = Step;
-    IDElem.ColonLoc = D.ColonLoc;
-    IDElem.SecondColonLoc = D.SecColonLoc;
-  }
-  if (!IsCorrect) {
-    // Invalidate all created iterator declarations if error is found.
-    for (const OMPIteratorExpr::IteratorDefinition &D : ID) {
-      if (Decl *ID = D.IteratorDecl)
-        ID->setInvalidDecl();
-    }
-    return ExprError();
-  }
-  SmallVector<OMPIteratorHelperData, 4> Helpers;
-  if (!CurContext->isDependentContext()) {
-    // Build number of ityeration for each iteration range.
-    // Ni = ((Stepi > 0) ? ((Endi + Stepi -1 - Begini)/Stepi) :
-    // ((Begini-Stepi-1-Endi) / -Stepi);
-    for (OMPIteratorExpr::IteratorDefinition &D : ID) {
-      // (Endi - Begini)
-      ExprResult Res = CreateBuiltinBinOp(D.AssignmentLoc, BO_Sub, D.Range.End,
-                                          D.Range.Begin);
-      if(!Res.isUsable()) {
-        IsCorrect = false;
-        continue;
-      }
-      ExprResult St, St1;
-      if (D.Range.Step) {
-        St = D.Range.Step;
-        // (Endi - Begini) + Stepi
-        Res = CreateBuiltinBinOp(D.AssignmentLoc, BO_Add, Res.get(), St.get());
-        if (!Res.isUsable()) {
-          IsCorrect = false;
-          continue;
-        }
-        // (Endi - Begini) + Stepi - 1
-        Res =
-            CreateBuiltinBinOp(D.AssignmentLoc, BO_Sub, Res.get(),
-                               ActOnIntegerConstant(D.AssignmentLoc, 1).get());
-        if (!Res.isUsable()) {
-          IsCorrect = false;
-          continue;
-        }
-        // ((Endi - Begini) + Stepi - 1) / Stepi
-        Res = CreateBuiltinBinOp(D.AssignmentLoc, BO_Div, Res.get(), St.get());
-        if (!Res.isUsable()) {
-          IsCorrect = false;
-          continue;
-        }
-        St1 = CreateBuiltinUnaryOp(D.AssignmentLoc, UO_Minus, D.Range.Step);
-        // (Begini - Endi)
-        ExprResult Res1 = CreateBuiltinBinOp(D.AssignmentLoc, BO_Sub,
-                                             D.Range.Begin, D.Range.End);
-        if (!Res1.isUsable()) {
-          IsCorrect = false;
-          continue;
-        }
-        // (Begini - Endi) - Stepi
-        Res1 =
-            CreateBuiltinBinOp(D.AssignmentLoc, BO_Add, Res1.get(), St1.get());
-        if (!Res1.isUsable()) {
-          IsCorrect = false;
-          continue;
-        }
-        // (Begini - Endi) - Stepi - 1
-        Res1 =
-            CreateBuiltinBinOp(D.AssignmentLoc, BO_Sub, Res1.get(),
-                               ActOnIntegerConstant(D.AssignmentLoc, 1).get());
-        if (!Res1.isUsable()) {
-          IsCorrect = false;
-          continue;
-        }
-        // ((Begini - Endi) - Stepi - 1) / (-Stepi)
-        Res1 =
-            CreateBuiltinBinOp(D.AssignmentLoc, BO_Div, Res1.get(), St1.get());
-        if (!Res1.isUsable()) {
-          IsCorrect = false;
-          continue;
-        }
-        // Stepi > 0.
-        ExprResult CmpRes =
-            CreateBuiltinBinOp(D.AssignmentLoc, BO_GT, D.Range.Step,
-                               ActOnIntegerConstant(D.AssignmentLoc, 0).get());
-        if (!CmpRes.isUsable()) {
-          IsCorrect = false;
-          continue;
-        }
-        Res = ActOnConditionalOp(D.AssignmentLoc, D.AssignmentLoc, CmpRes.get(),
-                                 Res.get(), Res1.get());
-        if (!Res.isUsable()) {
-          IsCorrect = false;
-          continue;
-        }
-      }
-      Res = ActOnFinishFullExpr(Res.get(), /*DiscardedValue=*/false);
-      if (!Res.isUsable()) {
-        IsCorrect = false;
-        continue;
-      }
-
-      // Build counter update.
-      // Build counter.
-      auto *CounterVD =
-          VarDecl::Create(Context, CurContext, D.IteratorDecl->getBeginLoc(),
-                          D.IteratorDecl->getBeginLoc(), nullptr,
-                          Res.get()->getType(), nullptr, SC_None);
-      CounterVD->setImplicit();
-      ExprResult RefRes =
-          BuildDeclRefExpr(CounterVD, CounterVD->getType(), VK_LValue,
-                           D.IteratorDecl->getBeginLoc());
-      // Build counter update.
-      // I = Begini + counter * Stepi;
-      ExprResult UpdateRes;
-      if (D.Range.Step) {
-        UpdateRes = CreateBuiltinBinOp(
-            D.AssignmentLoc, BO_Mul,
-            DefaultLvalueConversion(RefRes.get()).get(), St.get());
-      } else {
-        UpdateRes = DefaultLvalueConversion(RefRes.get());
-      }
-      if (!UpdateRes.isUsable()) {
-        IsCorrect = false;
-        continue;
-      }
-      UpdateRes = CreateBuiltinBinOp(D.AssignmentLoc, BO_Add, D.Range.Begin,
-                                     UpdateRes.get());
-      if (!UpdateRes.isUsable()) {
-        IsCorrect = false;
-        continue;
-      }
-      ExprResult VDRes =
-          BuildDeclRefExpr(cast<VarDecl>(D.IteratorDecl),
-                           cast<VarDecl>(D.IteratorDecl)->getType(), VK_LValue,
-                           D.IteratorDecl->getBeginLoc());
-      UpdateRes = CreateBuiltinBinOp(D.AssignmentLoc, BO_Assign, VDRes.get(),
-                                     UpdateRes.get());
-      if (!UpdateRes.isUsable()) {
-        IsCorrect = false;
-        continue;
-      }
-      UpdateRes =
-          ActOnFinishFullExpr(UpdateRes.get(), /*DiscardedValue=*/true);
-      if (!UpdateRes.isUsable()) {
-        IsCorrect = false;
-        continue;
-      }
-      ExprResult CounterUpdateRes =
-          CreateBuiltinUnaryOp(D.AssignmentLoc, UO_PreInc, RefRes.get());
-      if (!CounterUpdateRes.isUsable()) {
-        IsCorrect = false;
-        continue;
-      }
-      CounterUpdateRes =
-          ActOnFinishFullExpr(CounterUpdateRes.get(), /*DiscardedValue=*/true);
-      if (!CounterUpdateRes.isUsable()) {
-        IsCorrect = false;
-        continue;
-      }
-      OMPIteratorHelperData &HD = Helpers.emplace_back();
-      HD.CounterVD = CounterVD;
-      HD.Upper = Res.get();
-      HD.Update = UpdateRes.get();
-      HD.CounterUpdate = CounterUpdateRes.get();
-    }
-  } else {
-    Helpers.assign(ID.size(), {});
-  }
-  if (!IsCorrect) {
-    // Invalidate all created iterator declarations if error is found.
-    for (const OMPIteratorExpr::IteratorDefinition &D : ID) {
-      if (Decl *ID = D.IteratorDecl)
-        ID->setInvalidDecl();
-    }
-    return ExprError();
-  }
-  return OMPIteratorExpr::Create(Context, Context.OMPIteratorTy, IteratorKwLoc,
-                                 LLoc, RLoc, ID, Helpers);
-}
-
 ExprResult
 Sema::CreateBuiltinArraySubscriptExpr(Expr *Base, SourceLocation LLoc,
                                       Expr *Idx, SourceLocation RLoc) {
@@ -7190,8 +6640,8 @@ ExprResult Sema::ActOnCallExpr(Scope *Scope, Expr *Fn, SourceLocation LParenLoc,
   }
 
   if (LangOpts.OpenMP)
-    Call = ActOnOpenMPCall(Call, Scope, LParenLoc, ArgExprs, RParenLoc,
-                           ExecConfig);
+    Call = OpenMP().ActOnOpenMPCall(Call, Scope, LParenLoc, ArgExprs, RParenLoc,
+                                    ExecConfig);
   if (LangOpts.CPlusPlus) {
     if (const auto *CE = dyn_cast<CallExpr>(Call.get()))
       DiagnosedUnqualifiedCallsToStdFunctions(*this, CE);
@@ -19193,7 +18643,7 @@ MarkVarDeclODRUsed(ValueDecl *V, SourceLocation Loc, Sema &SemaRef,
   }
   QualType CaptureType, DeclRefType;
   if (SemaRef.LangOpts.OpenMP)
-    SemaRef.tryCaptureOpenMPLambdas(V);
+    SemaRef.OpenMP().tryCaptureOpenMPLambdas(V);
   SemaRef.tryCaptureVariable(V, Loc, Sema::TryCapture_Implicit,
                              /*EllipsisLoc*/ SourceLocation(),
                              /*BuildAndDiagnose*/ true, CaptureType,
@@ -19474,7 +18924,7 @@ static bool captureInBlock(BlockScopeInfo *BSI, ValueDecl *Var,
 
   const bool HasBlocksAttr = Var->hasAttr<BlocksAttr>();
   if (HasBlocksAttr || CaptureType->isReferenceType() ||
-      (S.getLangOpts().OpenMP && S.isOpenMPCapturedDecl(Var))) {
+      (S.getLangOpts().OpenMP && S.OpenMP().isOpenMPCapturedDecl(Var))) {
     // Block capture by reference does not change the capture or
     // declaration reference types.
     ByRef = true;
@@ -19504,7 +18954,7 @@ static bool captureInCapturedRegion(
     ByRef = (Kind == Sema::TryCapture_ExplicitByRef);
   } else if (S.getLangOpts().OpenMP && RSI->CapRegionKind == CR_OpenMP) {
     // Using an LValue reference type is consistent with Lambdas (see below).
-    if (S.isOpenMPCapturedDecl(Var)) {
+    if (S.OpenMP().isOpenMPCapturedDecl(Var)) {
       bool HasConst = DeclRefType.isConstQualified();
       DeclRefType = DeclRefType.getUnqualifiedType();
       // Don't lose diagnostics about assignments to const.
@@ -19512,11 +18962,11 @@ static bool captureInCapturedRegion(
         DeclRefType.addConst();
     }
     // Do not capture firstprivates in tasks.
-    if (S.isOpenMPPrivateDecl(Var, RSI->OpenMPLevel, RSI->OpenMPCaptureLevel) !=
-        OMPC_unknown)
+    if (S.OpenMP().isOpenMPPrivateDecl(Var, RSI->OpenMPLevel,
+                                       RSI->OpenMPCaptureLevel) != OMPC_unknown)
       return true;
-    ByRef = S.isOpenMPCapturedByRef(Var, RSI->OpenMPLevel,
-                                    RSI->OpenMPCaptureLevel);
+    ByRef = S.OpenMP().isOpenMPCapturedByRef(Var, RSI->OpenMPLevel,
+                                             RSI->OpenMPCaptureLevel);
   }
 
   if (ByRef)
@@ -19777,9 +19227,9 @@ bool Sema::tryCaptureVariable(
   // Capture global variables if it is required to use private copy of this
   // variable.
   bool IsGlobal = !VD->hasLocalStorage();
-  if (IsGlobal &&
-      !(LangOpts.OpenMP && isOpenMPCapturedDecl(Var, /*CheckScopeInfo=*/true,
-                                                MaxFunctionScopesIndex)))
+  if (IsGlobal && !(LangOpts.OpenMP &&
+                    OpenMP().isOpenMPCapturedDecl(Var, /*CheckScopeInfo=*/true,
+                                                  MaxFunctionScopesIndex)))
     return true;
 
   if (isa<VarDecl>(Var))
@@ -19897,7 +19347,7 @@ bool Sema::tryCaptureVariable(
             }
             return true;
           }
-          OpenMPClauseKind IsOpenMPPrivateDecl = isOpenMPPrivateDecl(
+          OpenMPClauseKind IsOpenMPPrivateDecl = OpenMP().isOpenMPPrivateDecl(
               Var, RSI->OpenMPLevel, RSI->OpenMPCaptureLevel);
           // If the variable is private (i.e. not captured) and has variably
           // modified type, we still need to capture the type for correct
@@ -19908,7 +19358,8 @@ bool Sema::tryCaptureVariable(
             QualType QTy = Var->getType();
             if (ParmVarDecl *PVD = dyn_cast_or_null<ParmVarDecl>(Var))
               QTy = PVD->getOriginalType();
-            for (int I = 1, E = getNumberOfConstructScopes(RSI->OpenMPLevel);
+            for (int I = 1,
+                     E = OpenMP().getNumberOfConstructScopes(RSI->OpenMPLevel);
                  I < E; ++I) {
               auto *OuterRSI = cast<CapturedRegionScopeInfo>(
                   FunctionScopes[FunctionScopesIndex - I]);
@@ -19920,18 +19371,19 @@ bool Sema::tryCaptureVariable(
           }
           bool IsTargetCap =
               IsOpenMPPrivateDecl != OMPC_private &&
-              isOpenMPTargetCapturedDecl(Var, RSI->OpenMPLevel,
-                                         RSI->OpenMPCaptureLevel);
+              OpenMP().isOpenMPTargetCapturedDecl(Var, RSI->OpenMPLevel,
+                                                  RSI->OpenMPCaptureLevel);
           // Do not capture global if it is not privatized in outer regions.
           bool IsGlobalCap =
-              IsGlobal && isOpenMPGlobalCapturedDecl(Var, RSI->OpenMPLevel,
-                                                     RSI->OpenMPCaptureLevel);
+              IsGlobal && OpenMP().isOpenMPGlobalCapturedDecl(
+                              Var, RSI->OpenMPLevel, RSI->OpenMPCaptureLevel);
 
           // When we detect target captures we are looking from inside the
           // target region, therefore we need to propagate the capture from the
           // enclosing region. Therefore, the capture is not initially nested.
           if (IsTargetCap)
-            adjustOpenMPTargetScopeIndex(FunctionScopesIndex, RSI->OpenMPLevel);
+            OpenMP().adjustOpenMPTargetScopeIndex(FunctionScopesIndex,
+                                                  RSI->OpenMPLevel);
 
           if (IsTargetCap || IsOpenMPPrivateDecl == OMPC_private ||
               (IsGlobal && !IsGlobalCap)) {
@@ -20753,8 +20205,8 @@ static void
 MarkExprReferenced(Sema &SemaRef, SourceLocation Loc, Decl *D, Expr *E,
                    bool MightBeOdrUse,
                    llvm::DenseMap<const VarDecl *, int> &RefsMinusAssignments) {
-  if (SemaRef.isInOpenMPDeclareTargetContext())
-    SemaRef.checkDeclIsAllowedInOpenMPTarget(E, D);
+  if (SemaRef.OpenMP().isInOpenMPDeclareTargetContext())
+    SemaRef.OpenMP().checkDeclIsAllowedInOpenMPTarget(E, D);
 
   if (VarDecl *Var = dyn_cast<VarDecl>(D)) {
     DoMarkVarDeclReferenced(SemaRef, Loc, Var, E, RefsMinusAssignments);
diff --git a/clang/lib/Sema/SemaExprMember.cpp b/clang/lib/Sema/SemaExprMember.cpp
index 32998ae..7ea6d73 100644
--- a/clang/lib/Sema/SemaExprMember.cpp
+++ b/clang/lib/Sema/SemaExprMember.cpp
@@ -9,7 +9,6 @@
 //  This file implements semantic analysis member access expressions.
 //
 //===----------------------------------------------------------------------===//
-#include "clang/Sema/Overload.h"
 #include "clang/AST/ASTLambda.h"
 #include "clang/AST/DeclCXX.h"
 #include "clang/AST/DeclObjC.h"
@@ -18,9 +17,11 @@
 #include "clang/AST/ExprObjC.h"
 #include "clang/Lex/Preprocessor.h"
 #include "clang/Sema/Lookup.h"
+#include "clang/Sema/Overload.h"
 #include "clang/Sema/Scope.h"
 #include "clang/Sema/ScopeInfo.h"
 #include "clang/Sema/SemaInternal.h"
+#include "clang/Sema/SemaOpenMP.h"
 
 using namespace clang;
 using namespace sema;
@@ -1900,9 +1901,9 @@ Sema::BuildFieldReferenceExpr(Expr *BaseExpr, bool IsArrow,
   if (getLangOpts().OpenMP && IsArrow &&
       !CurContext->isDependentContext() &&
       isa<CXXThisExpr>(Base.get()->IgnoreParenImpCasts())) {
-    if (auto *PrivateCopy = isOpenMPCapturedDecl(Field)) {
-      return getOpenMPCapturedExpr(PrivateCopy, VK, OK,
-                                   MemberNameInfo.getLoc());
+    if (auto *PrivateCopy = OpenMP().isOpenMPCapturedDecl(Field)) {
+      return OpenMP().getOpenMPCapturedExpr(PrivateCopy, VK, OK,
+                                            MemberNameInfo.getLoc());
     }
   }
 
diff --git a/clang/lib/Sema/SemaLambda.cpp b/clang/lib/Sema/SemaLambda.cpp
index 35a51c6..1743afa 100644
--- a/clang/lib/Sema/SemaLambda.cpp
+++ b/clang/lib/Sema/SemaLambda.cpp
@@ -21,6 +21,7 @@
 #include "clang/Sema/ScopeInfo.h"
 #include "clang/Sema/SemaCUDA.h"
 #include "clang/Sema/SemaInternal.h"
+#include "clang/Sema/SemaOpenMP.h"
 #include "clang/Sema/Template.h"
 #include "llvm/ADT/STLExtras.h"
 #include <optional>
@@ -1398,7 +1399,7 @@ void Sema::ActOnStartOfLambdaDefinition(LambdaIntroducer &Intro,
 
   // OpenMP lambdas might get assumumption attributes.
   if (LangOpts.OpenMP)
-    ActOnFinishedFunctionDefinitionInOpenMPAssumeScope(Method);
+    OpenMP().ActOnFinishedFunctionDefinitionInOpenMPAssumeScope(Method);
 
   handleLambdaNumbering(Class, Method);
 
diff --git a/clang/lib/Sema/SemaOpenMP.cpp b/clang/lib/Sema/SemaOpenMP.cpp
index e9efb47..d229ef6 100644
--- a/clang/lib/Sema/SemaOpenMP.cpp
+++ b/clang/lib/Sema/SemaOpenMP.cpp
@@ -11,6 +11,7 @@
 ///
 //===----------------------------------------------------------------------===//
 
+#include "clang/Sema/SemaOpenMP.h"
 #include "TreeTransform.h"
 #include "clang/AST/ASTContext.h"
 #include "clang/AST/ASTMutationListener.h"
@@ -33,6 +34,7 @@
 #include "clang/Sema/ParsedAttr.h"
 #include "clang/Sema/Scope.h"
 #include "clang/Sema/ScopeInfo.h"
+#include "clang/Sema/Sema.h"
 #include "clang/Sema/SemaInternal.h"
 #include "llvm/ADT/IndexedMap.h"
 #include "llvm/ADT/PointerEmbeddedInt.h"
@@ -1808,9 +1810,9 @@ const DSAStackTy::DSAVarData DSAStackTy::getTopDSA(ValueDecl *D,
           return DVar;
         }
         const_iterator End = end();
-        if (!SemaRef.isOpenMPCapturedByRef(D,
-                                           std::distance(ParentIterTarget, End),
-                                           /*OpenMPCaptureLevel=*/0)) {
+        if (!SemaRef.OpenMP().isOpenMPCapturedByRef(
+                D, std::distance(ParentIterTarget, End),
+                /*OpenMPCaptureLevel=*/0)) {
           DVar.RefExpr =
               buildDeclRefExpr(SemaRef, VD, D->getType().getNonReferenceType(),
                                IterTarget->ConstructLoc);
@@ -2018,22 +2020,22 @@ bool DSAStackTy::hasDirective(
   return false;
 }
 
-void Sema::InitDataSharingAttributesStack() {
-  VarDataSharingAttributesStack = new DSAStackTy(*this);
+void SemaOpenMP::InitDataSharingAttributesStack() {
+  VarDataSharingAttributesStack = new DSAStackTy(SemaRef);
 }
 
 #define DSAStack static_cast<DSAStackTy *>(VarDataSharingAttributesStack)
 
-void Sema::pushOpenMPFunctionRegion() { DSAStack->pushFunction(); }
+void SemaOpenMP::pushOpenMPFunctionRegion() { DSAStack->pushFunction(); }
 
-void Sema::popOpenMPFunctionRegion(const FunctionScopeInfo *OldFSI) {
+void SemaOpenMP::popOpenMPFunctionRegion(const FunctionScopeInfo *OldFSI) {
   DSAStack->popFunction(OldFSI);
 }
 
 static bool isOpenMPDeviceDelayedContext(Sema &S) {
   assert(S.LangOpts.OpenMP && S.LangOpts.OpenMPIsTargetDevice &&
          "Expected OpenMP device compilation.");
-  return !S.isInOpenMPTargetExecutionDirective();
+  return !S.OpenMP().isInOpenMPTargetExecutionDirective();
 }
 
 namespace {
@@ -2045,20 +2047,20 @@ enum class FunctionEmissionStatus {
 };
 } // anonymous namespace
 
-Sema::SemaDiagnosticBuilder
-Sema::diagIfOpenMPDeviceCode(SourceLocation Loc, unsigned DiagID,
-                             const FunctionDecl *FD) {
-  assert(LangOpts.OpenMP && LangOpts.OpenMPIsTargetDevice &&
+SemaBase::SemaDiagnosticBuilder
+SemaOpenMP::diagIfOpenMPDeviceCode(SourceLocation Loc, unsigned DiagID,
+                                   const FunctionDecl *FD) {
+  assert(getLangOpts().OpenMP && getLangOpts().OpenMPIsTargetDevice &&
          "Expected OpenMP device compilation.");
 
   SemaDiagnosticBuilder::Kind Kind = SemaDiagnosticBuilder::K_Nop;
   if (FD) {
-    FunctionEmissionStatus FES = getEmissionStatus(FD);
+    Sema::FunctionEmissionStatus FES = SemaRef.getEmissionStatus(FD);
     switch (FES) {
-    case FunctionEmissionStatus::Emitted:
+    case Sema::FunctionEmissionStatus::Emitted:
       Kind = SemaDiagnosticBuilder::K_Immediate;
       break;
-    case FunctionEmissionStatus::Unknown:
+    case Sema::FunctionEmissionStatus::Unknown:
       // TODO: We should always delay diagnostics here in case a target
       //       region is in a function we do not emit. However, as the
       //       current diagnostics are associated with the function containing
@@ -2066,48 +2068,48 @@ Sema::diagIfOpenMPDeviceCode(SourceLocation Loc, unsigned DiagID,
       //       on diagnostics for the target region itself. We need to anchor
       //       the diagnostics with the new generated function *or* ensure we
       //       emit diagnostics associated with the surrounding function.
-      Kind = isOpenMPDeviceDelayedContext(*this)
+      Kind = isOpenMPDeviceDelayedContext(SemaRef)
                  ? SemaDiagnosticBuilder::K_Deferred
                  : SemaDiagnosticBuilder::K_Immediate;
       break;
-    case FunctionEmissionStatus::TemplateDiscarded:
-    case FunctionEmissionStatus::OMPDiscarded:
+    case Sema::FunctionEmissionStatus::TemplateDiscarded:
+    case Sema::FunctionEmissionStatus::OMPDiscarded:
       Kind = SemaDiagnosticBuilder::K_Nop;
       break;
-    case FunctionEmissionStatus::CUDADiscarded:
+    case Sema::FunctionEmissionStatus::CUDADiscarded:
       llvm_unreachable("CUDADiscarded unexpected in OpenMP device compilation");
       break;
     }
   }
 
-  return SemaDiagnosticBuilder(Kind, Loc, DiagID, FD, *this);
+  return SemaDiagnosticBuilder(Kind, Loc, DiagID, FD, SemaRef);
 }
 
-Sema::SemaDiagnosticBuilder Sema::diagIfOpenMPHostCode(SourceLocation Loc,
-                                                       unsigned DiagID,
-                                                       const FunctionDecl *FD) {
-  assert(LangOpts.OpenMP && !LangOpts.OpenMPIsTargetDevice &&
+SemaBase::SemaDiagnosticBuilder
+SemaOpenMP::diagIfOpenMPHostCode(SourceLocation Loc, unsigned DiagID,
+                                 const FunctionDecl *FD) {
+  assert(getLangOpts().OpenMP && !getLangOpts().OpenMPIsTargetDevice &&
          "Expected OpenMP host compilation.");
 
   SemaDiagnosticBuilder::Kind Kind = SemaDiagnosticBuilder::K_Nop;
   if (FD) {
-    FunctionEmissionStatus FES = getEmissionStatus(FD);
+    Sema::FunctionEmissionStatus FES = SemaRef.getEmissionStatus(FD);
     switch (FES) {
-    case FunctionEmissionStatus::Emitted:
+    case Sema::FunctionEmissionStatus::Emitted:
       Kind = SemaDiagnosticBuilder::K_Immediate;
       break;
-    case FunctionEmissionStatus::Unknown:
+    case Sema::FunctionEmissionStatus::Unknown:
       Kind = SemaDiagnosticBuilder::K_Deferred;
       break;
-    case FunctionEmissionStatus::TemplateDiscarded:
-    case FunctionEmissionStatus::OMPDiscarded:
-    case FunctionEmissionStatus::CUDADiscarded:
+    case Sema::FunctionEmissionStatus::TemplateDiscarded:
+    case Sema::FunctionEmissionStatus::OMPDiscarded:
+    case Sema::FunctionEmissionStatus::CUDADiscarded:
       Kind = SemaDiagnosticBuilder::K_Nop;
       break;
     }
   }
 
-  return SemaDiagnosticBuilder(Kind, Loc, DiagID, FD, *this);
+  return SemaDiagnosticBuilder(Kind, Loc, DiagID, FD, SemaRef);
 }
 
 static OpenMPDefaultmapClauseKind
@@ -2124,9 +2126,9 @@ getVariableCategoryFromDecl(const LangOptions &LO, const ValueDecl *VD) {
   return OMPC_DEFAULTMAP_aggregate;
 }
 
-bool Sema::isOpenMPCapturedByRef(const ValueDecl *D, unsigned Level,
-                                 unsigned OpenMPCaptureLevel) const {
-  assert(LangOpts.OpenMP && "OpenMP is not allowed");
+bool SemaOpenMP::isOpenMPCapturedByRef(const ValueDecl *D, unsigned Level,
+                                       unsigned OpenMPCaptureLevel) const {
+  assert(getLangOpts().OpenMP && "OpenMP is not allowed");
 
   ASTContext &Ctx = getASTContext();
   bool IsByRef = true;
@@ -2252,7 +2254,7 @@ bool Sema::isOpenMPCapturedByRef(const ValueDecl *D, unsigned Level,
                  !Ty->isAnyPointerType()) ||
                 !Ty->isScalarType() ||
                 DSAStack->isDefaultmapCapturedByRef(
-                    Level, getVariableCategoryFromDecl(LangOpts, D)) ||
+                    Level, getVariableCategoryFromDecl(getLangOpts(), D)) ||
                 DSAStack->hasExplicitDSA(
                     D,
                     [](OpenMPClauseKind K, bool AppliedToPointee) {
@@ -2303,17 +2305,17 @@ bool Sema::isOpenMPCapturedByRef(const ValueDecl *D, unsigned Level,
   return IsByRef;
 }
 
-unsigned Sema::getOpenMPNestingLevel() const {
+unsigned SemaOpenMP::getOpenMPNestingLevel() const {
   assert(getLangOpts().OpenMP);
   return DSAStack->getNestingLevel();
 }
 
-bool Sema::isInOpenMPTaskUntiedContext() const {
+bool SemaOpenMP::isInOpenMPTaskUntiedContext() const {
   return isOpenMPTaskingDirective(DSAStack->getCurrentDirective()) &&
          DSAStack->isUntiedRegion();
 }
 
-bool Sema::isInOpenMPTargetExecutionDirective() const {
+bool SemaOpenMP::isInOpenMPTargetExecutionDirective() const {
   return (isOpenMPTargetExecutionDirective(DSAStack->getCurrentDirective()) &&
           !DSAStack->isClauseParsingMode()) ||
          DSAStack->hasDirective(
@@ -2324,7 +2326,7 @@ bool Sema::isInOpenMPTargetExecutionDirective() const {
              false);
 }
 
-bool Sema::isOpenMPRebuildMemberExpr(ValueDecl *D) {
+bool SemaOpenMP::isOpenMPRebuildMemberExpr(ValueDecl *D) {
   // Only rebuild for Field.
   if (!dyn_cast<FieldDecl>(D))
     return false;
@@ -2347,9 +2349,9 @@ static OMPCapturedExprDecl *buildCaptureDecl(Sema &S, IdentifierInfo *Id,
                                              DeclContext *CurContext,
                                              bool AsExpression);
 
-VarDecl *Sema::isOpenMPCapturedDecl(ValueDecl *D, bool CheckScopeInfo,
-                                    unsigned StopAt) {
-  assert(LangOpts.OpenMP && "OpenMP is not allowed");
+VarDecl *SemaOpenMP::isOpenMPCapturedDecl(ValueDecl *D, bool CheckScopeInfo,
+                                          unsigned StopAt) {
+  assert(getLangOpts().OpenMP && "OpenMP is not allowed");
   D = getCanonicalDecl(D);
 
   auto *VD = dyn_cast<VarDecl>(D);
@@ -2368,7 +2370,8 @@ VarDecl *Sema::isOpenMPCapturedDecl(ValueDecl *D, bool CheckScopeInfo,
   // 'target' we return true so that this global is also mapped to the device.
   //
   if (VD && !VD->hasLocalStorage() &&
-      (getCurCapturedRegion() || getCurBlock() || getCurLambda())) {
+      (SemaRef.getCurCapturedRegion() || SemaRef.getCurBlock() ||
+       SemaRef.getCurLambda())) {
     if (isInOpenMPTargetExecutionDirective()) {
       DSAStackTy::DSAVarData DVarTop =
           DSAStack->getTopDSA(D, DSAStack->isClauseParsingMode());
@@ -2381,8 +2384,9 @@ VarDecl *Sema::isOpenMPCapturedDecl(ValueDecl *D, bool CheckScopeInfo,
         return nullptr;
       CapturedRegionScopeInfo *CSI = nullptr;
       for (FunctionScopeInfo *FSI : llvm::drop_begin(
-               llvm::reverse(FunctionScopes),
-               CheckScopeInfo ? (FunctionScopes.size() - (StopAt + 1)) : 0)) {
+               llvm::reverse(SemaRef.FunctionScopes),
+               CheckScopeInfo ? (SemaRef.FunctionScopes.size() - (StopAt + 1))
+                              : 0)) {
         if (!isa<CapturingScopeInfo>(FSI))
           return nullptr;
         if (auto *RSI = dyn_cast<CapturedRegionScopeInfo>(FSI))
@@ -2401,7 +2405,7 @@ VarDecl *Sema::isOpenMPCapturedDecl(ValueDecl *D, bool CheckScopeInfo,
     if (isInOpenMPDeclareTargetContext()) {
       // Try to mark variable as declare target if it is used in capturing
       // regions.
-      if (LangOpts.OpenMP <= 45 &&
+      if (getLangOpts().OpenMP <= 45 &&
           !OMPDeclareTargetDeclAttr::isDeclareTargetDeclaration(VD))
         checkDeclIsAllowedInOpenMPTarget(nullptr, VD);
       return nullptr;
@@ -2411,7 +2415,7 @@ VarDecl *Sema::isOpenMPCapturedDecl(ValueDecl *D, bool CheckScopeInfo,
   if (CheckScopeInfo) {
     bool OpenMPFound = false;
     for (unsigned I = StopAt + 1; I > 0; --I) {
-      FunctionScopeInfo *FSI = FunctionScopes[I - 1];
+      FunctionScopeInfo *FSI = SemaRef.FunctionScopes[I - 1];
       if (!isa<CapturingScopeInfo>(FSI))
         return nullptr;
       if (auto *RSI = dyn_cast<CapturedRegionScopeInfo>(FSI))
@@ -2476,22 +2480,23 @@ VarDecl *Sema::isOpenMPCapturedDecl(ValueDecl *D, bool CheckScopeInfo,
       VarDecl *VD = DSAStack->getImplicitFDCapExprDecl(FD);
       if (VD)
         return VD;
-      if (getCurrentThisType().isNull())
+      if (SemaRef.getCurrentThisType().isNull())
         return nullptr;
-      Expr *ThisExpr = BuildCXXThisExpr(SourceLocation(), getCurrentThisType(),
-                                        /*IsImplicit=*/true);
+      Expr *ThisExpr = SemaRef.BuildCXXThisExpr(SourceLocation(),
+                                                SemaRef.getCurrentThisType(),
+                                                /*IsImplicit=*/true);
       const CXXScopeSpec CS = CXXScopeSpec();
-      Expr *ME = BuildMemberExpr(ThisExpr, /*IsArrow=*/true, SourceLocation(),
-                                 NestedNameSpecifierLoc(), SourceLocation(), FD,
-                                 DeclAccessPair::make(FD, FD->getAccess()),
-                                 /*HadMultipleCandidates=*/false,
-                                 DeclarationNameInfo(), FD->getType(),
-                                 VK_LValue, OK_Ordinary);
+      Expr *ME = SemaRef.BuildMemberExpr(
+          ThisExpr, /*IsArrow=*/true, SourceLocation(),
+          NestedNameSpecifierLoc(), SourceLocation(), FD,
+          DeclAccessPair::make(FD, FD->getAccess()),
+          /*HadMultipleCandidates=*/false, DeclarationNameInfo(), FD->getType(),
+          VK_LValue, OK_Ordinary);
       OMPCapturedExprDecl *CD = buildCaptureDecl(
-          *this, FD->getIdentifier(), ME, DVarPrivate.CKind != OMPC_private,
-          CurContext->getParent(), /*AsExpression=*/false);
+          SemaRef, FD->getIdentifier(), ME, DVarPrivate.CKind != OMPC_private,
+          SemaRef.CurContext->getParent(), /*AsExpression=*/false);
       DeclRefExpr *VDPrivateRefExpr = buildDeclRefExpr(
-          *this, CD, CD->getType().getNonReferenceType(), SourceLocation());
+          SemaRef, CD, CD->getType().getNonReferenceType(), SourceLocation());
       VD = cast<VarDecl>(VDPrivateRefExpr->getDecl());
       DSAStack->addImplicitDefaultFirstprivateFD(FD, VD);
       return VD;
@@ -2505,28 +2510,28 @@ VarDecl *Sema::isOpenMPCapturedDecl(ValueDecl *D, bool CheckScopeInfo,
   return nullptr;
 }
 
-void Sema::adjustOpenMPTargetScopeIndex(unsigned &FunctionScopesIndex,
-                                        unsigned Level) const {
+void SemaOpenMP::adjustOpenMPTargetScopeIndex(unsigned &FunctionScopesIndex,
+                                              unsigned Level) const {
   FunctionScopesIndex -= getOpenMPCaptureLevels(DSAStack->getDirective(Level));
 }
 
-void Sema::startOpenMPLoop() {
-  assert(LangOpts.OpenMP && "OpenMP must be enabled.");
+void SemaOpenMP::startOpenMPLoop() {
+  assert(getLangOpts().OpenMP && "OpenMP must be enabled.");
   if (isOpenMPLoopDirective(DSAStack->getCurrentDirective()))
     DSAStack->loopInit();
 }
 
-void Sema::startOpenMPCXXRangeFor() {
-  assert(LangOpts.OpenMP && "OpenMP must be enabled.");
+void SemaOpenMP::startOpenMPCXXRangeFor() {
+  assert(getLangOpts().OpenMP && "OpenMP must be enabled.");
   if (isOpenMPLoopDirective(DSAStack->getCurrentDirective())) {
     DSAStack->resetPossibleLoopCounter();
     DSAStack->loopStart();
   }
 }
 
-OpenMPClauseKind Sema::isOpenMPPrivateDecl(ValueDecl *D, unsigned Level,
-                                           unsigned CapLevel) const {
-  assert(LangOpts.OpenMP && "OpenMP is not allowed");
+OpenMPClauseKind SemaOpenMP::isOpenMPPrivateDecl(ValueDecl *D, unsigned Level,
+                                                 unsigned CapLevel) const {
+  assert(getLangOpts().OpenMP && "OpenMP is not allowed");
   if (DSAStack->getCurrentDirective() != OMPD_unknown &&
       (!DSAStack->isClauseParsingMode() ||
        DSAStack->getParentDirective() != OMPD_unknown)) {
@@ -2546,7 +2551,8 @@ OpenMPClauseKind Sema::isOpenMPPrivateDecl(ValueDecl *D, unsigned Level,
   }
   if (DSAStack->hasExplicitDirective(isOpenMPTaskingDirective, Level)) {
     bool IsTriviallyCopyable =
-        D->getType().getNonReferenceType().isTriviallyCopyableType(Context) &&
+        D->getType().getNonReferenceType().isTriviallyCopyableType(
+            getASTContext()) &&
         !D->getType()
              .getNonReferenceType()
              .getCanonicalType()
@@ -2620,9 +2626,9 @@ OpenMPClauseKind Sema::isOpenMPPrivateDecl(ValueDecl *D, unsigned Level,
              : OMPC_unknown;
 }
 
-void Sema::setOpenMPCaptureKind(FieldDecl *FD, const ValueDecl *D,
-                                unsigned Level) {
-  assert(LangOpts.OpenMP && "OpenMP is not allowed");
+void SemaOpenMP::setOpenMPCaptureKind(FieldDecl *FD, const ValueDecl *D,
+                                      unsigned Level) {
+  assert(getLangOpts().OpenMP && "OpenMP is not allowed");
   D = getCanonicalDecl(D);
   OpenMPClauseKind OMPC = OMPC_unknown;
   for (unsigned I = DSAStack->getNestingLevel() + 1; I > Level; --I) {
@@ -2649,18 +2655,19 @@ void Sema::setOpenMPCaptureKind(FieldDecl *FD, const ValueDecl *D,
                                        NewLevel)) {
       OMPC = OMPC_map;
       if (DSAStack->mustBeFirstprivateAtLevel(
-              NewLevel, getVariableCategoryFromDecl(LangOpts, D)))
+              NewLevel, getVariableCategoryFromDecl(getLangOpts(), D)))
         OMPC = OMPC_firstprivate;
       break;
     }
   }
   if (OMPC != OMPC_unknown)
-    FD->addAttr(OMPCaptureKindAttr::CreateImplicit(Context, unsigned(OMPC)));
+    FD->addAttr(
+        OMPCaptureKindAttr::CreateImplicit(getASTContext(), unsigned(OMPC)));
 }
 
-bool Sema::isOpenMPTargetCapturedDecl(const ValueDecl *D, unsigned Level,
-                                      unsigned CaptureLevel) const {
-  assert(LangOpts.OpenMP && "OpenMP is not allowed");
+bool SemaOpenMP::isOpenMPTargetCapturedDecl(const ValueDecl *D, unsigned Level,
+                                            unsigned CaptureLevel) const {
+  assert(getLangOpts().OpenMP && "OpenMP is not allowed");
   // Return true if the current level is no longer enclosed in a target region.
 
   SmallVector<OpenMPDirectiveKind, 4> Regions;
@@ -2672,9 +2679,9 @@ bool Sema::isOpenMPTargetCapturedDecl(const ValueDecl *D, unsigned Level,
          Regions[CaptureLevel] != OMPD_task;
 }
 
-bool Sema::isOpenMPGlobalCapturedDecl(ValueDecl *D, unsigned Level,
-                                      unsigned CaptureLevel) const {
-  assert(LangOpts.OpenMP && "OpenMP is not allowed");
+bool SemaOpenMP::isOpenMPGlobalCapturedDecl(ValueDecl *D, unsigned Level,
+                                            unsigned CaptureLevel) const {
+  assert(getLangOpts().OpenMP && "OpenMP is not allowed");
   // Return true if the current level is no longer enclosed in a target region.
 
   if (const auto *VD = dyn_cast<VarDecl>(D)) {
@@ -2702,37 +2709,37 @@ bool Sema::isOpenMPGlobalCapturedDecl(ValueDecl *D, unsigned Level,
   return true;
 }
 
-void Sema::DestroyDataSharingAttributesStack() { delete DSAStack; }
+void SemaOpenMP::DestroyDataSharingAttributesStack() { delete DSAStack; }
 
-void Sema::ActOnOpenMPBeginDeclareVariant(SourceLocation Loc,
-                                          OMPTraitInfo &TI) {
+void SemaOpenMP::ActOnOpenMPBeginDeclareVariant(SourceLocation Loc,
+                                                OMPTraitInfo &TI) {
   OMPDeclareVariantScopes.push_back(OMPDeclareVariantScope(TI));
 }
 
-void Sema::ActOnOpenMPEndDeclareVariant() {
+void SemaOpenMP::ActOnOpenMPEndDeclareVariant() {
   assert(isInOpenMPDeclareVariantScope() &&
          "Not in OpenMP declare variant scope!");
 
   OMPDeclareVariantScopes.pop_back();
 }
 
-void Sema::finalizeOpenMPDelayedAnalysis(const FunctionDecl *Caller,
-                                         const FunctionDecl *Callee,
-                                         SourceLocation Loc) {
-  assert(LangOpts.OpenMP && "Expected OpenMP compilation mode.");
+void SemaOpenMP::finalizeOpenMPDelayedAnalysis(const FunctionDecl *Caller,
+                                               const FunctionDecl *Callee,
+                                               SourceLocation Loc) {
+  assert(getLangOpts().OpenMP && "Expected OpenMP compilation mode.");
   std::optional<OMPDeclareTargetDeclAttr::DevTypeTy> DevTy =
       OMPDeclareTargetDeclAttr::getDeviceType(Caller->getMostRecentDecl());
   // Ignore host functions during device analyzis.
-  if (LangOpts.OpenMPIsTargetDevice &&
+  if (getLangOpts().OpenMPIsTargetDevice &&
       (!DevTy || *DevTy == OMPDeclareTargetDeclAttr::DT_Host))
     return;
   // Ignore nohost functions during host analyzis.
-  if (!LangOpts.OpenMPIsTargetDevice && DevTy &&
+  if (!getLangOpts().OpenMPIsTargetDevice && DevTy &&
       *DevTy == OMPDeclareTargetDeclAttr::DT_NoHost)
     return;
   const FunctionDecl *FD = Callee->getMostRecentDecl();
   DevTy = OMPDeclareTargetDeclAttr::getDeviceType(FD);
-  if (LangOpts.OpenMPIsTargetDevice && DevTy &&
+  if (getLangOpts().OpenMPIsTargetDevice && DevTy &&
       *DevTy == OMPDeclareTargetDeclAttr::DT_Host) {
     // Diagnose host function called during device codegen.
     StringRef HostDevTy =
@@ -2743,8 +2750,9 @@ void Sema::finalizeOpenMPDelayedAnalysis(const FunctionDecl *Caller,
         << HostDevTy;
     return;
   }
-  if (!LangOpts.OpenMPIsTargetDevice && !LangOpts.OpenMPOffloadMandatory &&
-      DevTy && *DevTy == OMPDeclareTargetDeclAttr::DT_NoHost) {
+  if (!getLangOpts().OpenMPIsTargetDevice &&
+      !getLangOpts().OpenMPOffloadMandatory && DevTy &&
+      *DevTy == OMPDeclareTargetDeclAttr::DT_NoHost) {
     // In OpenMP 5.2 or later, if the function has a host variant then allow
     // that to be called instead
     auto &&HasHostAttr = [](const FunctionDecl *Callee) {
@@ -2773,21 +2781,21 @@ void Sema::finalizeOpenMPDelayedAnalysis(const FunctionDecl *Caller,
   }
 }
 
-void Sema::StartOpenMPDSABlock(OpenMPDirectiveKind DKind,
-                               const DeclarationNameInfo &DirName,
-                               Scope *CurScope, SourceLocation Loc) {
+void SemaOpenMP::StartOpenMPDSABlock(OpenMPDirectiveKind DKind,
+                                     const DeclarationNameInfo &DirName,
+                                     Scope *CurScope, SourceLocation Loc) {
   DSAStack->push(DKind, DirName, CurScope, Loc);
-  PushExpressionEvaluationContext(
-      ExpressionEvaluationContext::PotentiallyEvaluated);
+  SemaRef.PushExpressionEvaluationContext(
+      Sema::ExpressionEvaluationContext::PotentiallyEvaluated);
 }
 
-void Sema::StartOpenMPClause(OpenMPClauseKind K) {
+void SemaOpenMP::StartOpenMPClause(OpenMPClauseKind K) {
   DSAStack->setClauseParsingMode(K);
 }
 
-void Sema::EndOpenMPClause() {
+void SemaOpenMP::EndOpenMPClause() {
   DSAStack->setClauseParsingMode(/*K=*/OMPC_unknown);
-  CleanupVarDeclMarking();
+  SemaRef.CleanupVarDeclMarking();
 }
 
 static std::pair<ValueDecl *, bool>
@@ -2871,7 +2879,7 @@ static void reportOriginalDsa(Sema &SemaRef, const DSAStackTy *Stack,
                               const DSAStackTy::DSAVarData &DVar,
                               bool IsLoopIterVar = false);
 
-void Sema::EndOpenMPDSABlock(Stmt *CurDirective) {
+void SemaOpenMP::EndOpenMPDSABlock(Stmt *CurDirective) {
   // OpenMP [2.14.3.5, Restrictions, C/C++, p.1]
   //  A variable of class type (or array thereof) that appears in a lastprivate
   //  clause requires an accessible, unambiguous default constructor for the
@@ -2898,15 +2906,15 @@ void Sema::EndOpenMPDSABlock(Stmt *CurDirective) {
             // variable is not added to IdResolver, so the code in the OpenMP
             // region uses original variable for proper diagnostics.
             VarDecl *VDPrivate = buildVarDecl(
-                *this, DE->getExprLoc(), Type.getUnqualifiedType(),
+                SemaRef, DE->getExprLoc(), Type.getUnqualifiedType(),
                 VD->getName(), VD->hasAttrs() ? &VD->getAttrs() : nullptr, DRE);
-            ActOnUninitializedDecl(VDPrivate);
+            SemaRef.ActOnUninitializedDecl(VDPrivate);
             if (VDPrivate->isInvalidDecl()) {
               PrivateCopies.push_back(nullptr);
               continue;
             }
             PrivateCopies.push_back(buildDeclRefExpr(
-                *this, VDPrivate, DE->getType(), DE->getExprLoc()));
+                SemaRef, VDPrivate, DE->getType(), DE->getExprLoc()));
           } else {
             // The variable is also a firstprivate, so initialization sequence
             // for private copy is generated already.
@@ -2924,7 +2932,7 @@ void Sema::EndOpenMPDSABlock(Stmt *CurDirective) {
           SourceLocation ELoc;
           SourceRange ERange;
           Expr *SimpleRefExpr = RefExpr;
-          auto Res = getPrivateItem(*this, SimpleRefExpr, ELoc, ERange);
+          auto Res = getPrivateItem(SemaRef, SimpleRefExpr, ELoc, ERange);
           if (Res.second)
             // It will be analyzed later.
             PrivateRefs.push_back(RefExpr);
@@ -2977,7 +2985,7 @@ void Sema::EndOpenMPDSABlock(Stmt *CurDirective) {
                  diag::err_omp_allocator_used_in_clauses)
                 << D.Allocator->getSourceRange();
             if (DVar.RefExpr)
-              reportOriginalDsa(*this, DSAStack, VD, DVar);
+              reportOriginalDsa(SemaRef, DSAStack, VD, DVar);
             else
               Diag(MapExpr->getExprLoc(), diag::note_used_here)
                   << MapExpr->getSourceRange();
@@ -2987,14 +2995,14 @@ void Sema::EndOpenMPDSABlock(Stmt *CurDirective) {
       }
     }
     // Check allocate clauses.
-    if (!CurContext->isDependentContext())
-      checkAllocateClauses(*this, DSAStack, D->clauses());
-    checkReductionClauses(*this, DSAStack, D->clauses());
+    if (!SemaRef.CurContext->isDependentContext())
+      checkAllocateClauses(SemaRef, DSAStack, D->clauses());
+    checkReductionClauses(SemaRef, DSAStack, D->clauses());
   }
 
   DSAStack->pop();
-  DiscardCleanupsInEvaluationContext();
-  PopExpressionEvaluationContext();
+  SemaRef.DiscardCleanupsInEvaluationContext();
+  SemaRef.PopExpressionEvaluationContext();
 }
 
 static bool FinishOpenMPLinearClause(OMPLinearClause &Clause, DeclRefExpr *IV,
@@ -3047,27 +3055,28 @@ public:
 
 } // namespace
 
-ExprResult Sema::ActOnOpenMPIdExpression(Scope *CurScope,
-                                         CXXScopeSpec &ScopeSpec,
-                                         const DeclarationNameInfo &Id,
-                                         OpenMPDirectiveKind Kind) {
-  LookupResult Lookup(*this, Id, LookupOrdinaryName);
-  LookupParsedName(Lookup, CurScope, &ScopeSpec, true);
+ExprResult SemaOpenMP::ActOnOpenMPIdExpression(Scope *CurScope,
+                                               CXXScopeSpec &ScopeSpec,
+                                               const DeclarationNameInfo &Id,
+                                               OpenMPDirectiveKind Kind) {
+  ASTContext &Context = getASTContext();
+  LookupResult Lookup(SemaRef, Id, Sema::LookupOrdinaryName);
+  SemaRef.LookupParsedName(Lookup, CurScope, &ScopeSpec, true);
 
   if (Lookup.isAmbiguous())
     return ExprError();
 
   VarDecl *VD;
   if (!Lookup.isSingleResult()) {
-    VarDeclFilterCCC CCC(*this);
+    VarDeclFilterCCC CCC(SemaRef);
     if (TypoCorrection Corrected =
-            CorrectTypo(Id, LookupOrdinaryName, CurScope, nullptr, CCC,
-                        CTK_ErrorRecovery)) {
-      diagnoseTypo(Corrected,
-                   PDiag(Lookup.empty()
-                             ? diag::err_undeclared_var_use_suggest
-                             : diag::err_omp_expected_var_arg_suggest)
-                       << Id.getName());
+            SemaRef.CorrectTypo(Id, Sema::LookupOrdinaryName, CurScope, nullptr,
+                                CCC, Sema::CTK_ErrorRecovery)) {
+      SemaRef.diagnoseTypo(
+          Corrected,
+          SemaRef.PDiag(Lookup.empty() ? diag::err_undeclared_var_use_suggest
+                                       : diag::err_omp_expected_var_arg_suggest)
+              << Id.getName());
       VD = Corrected.getCorrectionDeclAs<VarDecl>();
     } else {
       Diag(Id.getLoc(), Lookup.empty() ? diag::err_undeclared_var_use
@@ -3101,7 +3110,7 @@ ExprResult Sema::ActOnOpenMPIdExpression(Scope *CurScope,
   //   A threadprivate directive for file-scope variables must appear outside
   //   any definition or declaration.
   if (CanonicalVD->getDeclContext()->isTranslationUnit() &&
-      !getCurLexicalContext()->isTranslationUnit()) {
+      !SemaRef.getCurLexicalContext()->isTranslationUnit()) {
     Diag(Id.getLoc(), diag::err_omp_var_scope)
         << getOpenMPDirectiveName(Kind) << VD;
     bool IsDecl =
@@ -3116,7 +3125,7 @@ ExprResult Sema::ActOnOpenMPIdExpression(Scope *CurScope,
   //   in the class definition, in the same scope in which the member
   //   variables are declared.
   if (CanonicalVD->isStaticDataMember() &&
-      !CanonicalVD->getDeclContext()->Equals(getCurLexicalContext())) {
+      !CanonicalVD->getDeclContext()->Equals(SemaRef.getCurLexicalContext())) {
     Diag(Id.getLoc(), diag::err_omp_var_scope)
         << getOpenMPDirectiveName(Kind) << VD;
     bool IsDecl =
@@ -3131,8 +3140,9 @@ ExprResult Sema::ActOnOpenMPIdExpression(Scope *CurScope,
   //   outside any definition or declaration other than the namespace
   //   definition itself.
   if (CanonicalVD->getDeclContext()->isNamespace() &&
-      (!getCurLexicalContext()->isFileContext() ||
-       !getCurLexicalContext()->Encloses(CanonicalVD->getDeclContext()))) {
+      (!SemaRef.getCurLexicalContext()->isFileContext() ||
+       !SemaRef.getCurLexicalContext()->Encloses(
+           CanonicalVD->getDeclContext()))) {
     Diag(Id.getLoc(), diag::err_omp_var_scope)
         << getOpenMPDirectiveName(Kind) << VD;
     bool IsDecl =
@@ -3146,7 +3156,7 @@ ExprResult Sema::ActOnOpenMPIdExpression(Scope *CurScope,
   //   A threadprivate directive for static block-scope variables must appear
   //   in the scope of the variable and not in a nested scope.
   if (CanonicalVD->isLocalVarDecl() && CurScope &&
-      !isDeclInScope(ND, getCurLexicalContext(), CurScope)) {
+      !SemaRef.isDeclInScope(ND, SemaRef.getCurLexicalContext(), CurScope)) {
     Diag(Id.getLoc(), diag::err_omp_var_scope)
         << getOpenMPDirectiveName(Kind) << VD;
     bool IsDecl =
@@ -3174,11 +3184,11 @@ ExprResult Sema::ActOnOpenMPIdExpression(Scope *CurScope,
                              Id.getLoc(), ExprType, VK_LValue);
 }
 
-Sema::DeclGroupPtrTy
-Sema::ActOnOpenMPThreadprivateDirective(SourceLocation Loc,
-                                        ArrayRef<Expr *> VarList) {
+SemaOpenMP::DeclGroupPtrTy
+SemaOpenMP::ActOnOpenMPThreadprivateDirective(SourceLocation Loc,
+                                              ArrayRef<Expr *> VarList) {
   if (OMPThreadPrivateDecl *D = CheckOMPThreadPrivateDecl(Loc, VarList)) {
-    CurContext->addDecl(D);
+    SemaRef.CurContext->addDecl(D);
     return DeclGroupPtrTy::make(DeclGroupRef(D));
   }
   return nullptr;
@@ -3215,7 +3225,9 @@ public:
 } // namespace
 
 OMPThreadPrivateDecl *
-Sema::CheckOMPThreadPrivateDecl(SourceLocation Loc, ArrayRef<Expr *> VarList) {
+SemaOpenMP::CheckOMPThreadPrivateDecl(SourceLocation Loc,
+                                      ArrayRef<Expr *> VarList) {
+  ASTContext &Context = getASTContext();
   SmallVector<Expr *, 8> Vars;
   for (Expr *RefExpr : VarList) {
     auto *DE = cast<DeclRefExpr>(RefExpr);
@@ -3235,8 +3247,8 @@ Sema::CheckOMPThreadPrivateDecl(SourceLocation Loc, ArrayRef<Expr *> VarList) {
 
     // OpenMP [2.9.2, Restrictions, C/C++, p.10]
     //   A threadprivate variable must not have an incomplete type.
-    if (RequireCompleteType(ILoc, VD->getType(),
-                            diag::err_omp_threadprivate_incomplete_type)) {
+    if (SemaRef.RequireCompleteType(
+            ILoc, VD->getType(), diag::err_omp_threadprivate_incomplete_type)) {
       continue;
     }
 
@@ -3274,7 +3286,7 @@ Sema::CheckOMPThreadPrivateDecl(SourceLocation Loc, ArrayRef<Expr *> VarList) {
     // Check if initial value of threadprivate variable reference variable with
     // local storage (it is not supported by runtime).
     if (const Expr *Init = VD->getAnyInitializer()) {
-      LocalVarRefChecker Checker(*this);
+      LocalVarRefChecker Checker(SemaRef);
       if (Checker.Visit(Init))
         continue;
     }
@@ -3288,8 +3300,8 @@ Sema::CheckOMPThreadPrivateDecl(SourceLocation Loc, ArrayRef<Expr *> VarList) {
   }
   OMPThreadPrivateDecl *D = nullptr;
   if (!Vars.empty()) {
-    D = OMPThreadPrivateDecl::Create(Context, getCurLexicalContext(), Loc,
-                                     Vars);
+    D = OMPThreadPrivateDecl::Create(Context, SemaRef.getCurLexicalContext(),
+                                     Loc, Vars);
     D->setAccess(AS_public);
   }
   return D;
@@ -3395,10 +3407,9 @@ applyOMPAllocateAttribute(Sema &S, VarDecl *VD,
     ML->DeclarationMarkedOpenMPAllocate(VD, A);
 }
 
-Sema::DeclGroupPtrTy
-Sema::ActOnOpenMPAllocateDirective(SourceLocation Loc, ArrayRef<Expr *> VarList,
-                                   ArrayRef<OMPClause *> Clauses,
-                                   DeclContext *Owner) {
+SemaOpenMP::DeclGroupPtrTy SemaOpenMP::ActOnOpenMPAllocateDirective(
+    SourceLocation Loc, ArrayRef<Expr *> VarList, ArrayRef<OMPClause *> Clauses,
+    DeclContext *Owner) {
   assert(Clauses.size() <= 2 && "Expected at most two clauses.");
   Expr *Alignment = nullptr;
   Expr *Allocator = nullptr;
@@ -3407,9 +3418,9 @@ Sema::ActOnOpenMPAllocateDirective(SourceLocation Loc, ArrayRef<Expr *> VarList,
     // allocate directives that appear in a target region must specify an
     // allocator clause unless a requires directive with the dynamic_allocators
     // clause is present in the same compilation unit.
-    if (LangOpts.OpenMPIsTargetDevice &&
+    if (getLangOpts().OpenMPIsTargetDevice &&
         !DSAStack->hasRequiresDeclWithClause<OMPDynamicAllocatorsClause>())
-      targetDiag(Loc, diag::err_expected_allocator_clause);
+      SemaRef.targetDiag(Loc, diag::err_expected_allocator_clause);
   } else {
     for (const OMPClause *C : Clauses)
       if (const auto *AC = dyn_cast<OMPAllocatorClause>(C))
@@ -3420,7 +3431,7 @@ Sema::ActOnOpenMPAllocateDirective(SourceLocation Loc, ArrayRef<Expr *> VarList,
         llvm_unreachable("Unexpected clause on allocate directive");
   }
   OMPAllocateDeclAttr::AllocatorTypeTy AllocatorKind =
-      getAllocatorKind(*this, DSAStack, Allocator);
+      getAllocatorKind(SemaRef, DSAStack, Allocator);
   SmallVector<Expr *, 8> Vars;
   for (Expr *RefExpr : VarList) {
     auto *DE = cast<DeclRefExpr>(RefExpr);
@@ -3435,7 +3446,7 @@ Sema::ActOnOpenMPAllocateDirective(SourceLocation Loc, ArrayRef<Expr *> VarList,
 
     // If the used several times in the allocate directive, the same allocator
     // must be used.
-    if (checkPreviousOMPAllocateAttribute(*this, DSAStack, RefExpr, VD,
+    if (checkPreviousOMPAllocateAttribute(SemaRef, DSAStack, RefExpr, VD,
                                           AllocatorKind, Allocator))
       continue;
 
@@ -3448,7 +3459,7 @@ Sema::ActOnOpenMPAllocateDirective(SourceLocation Loc, ArrayRef<Expr *> VarList,
         Diag(Allocator->getExprLoc(),
              diag::err_omp_expected_predefined_allocator)
             << Allocator->getSourceRange();
-        bool IsDecl = VD->isThisDeclarationADefinition(Context) ==
+        bool IsDecl = VD->isThisDeclarationADefinition(getASTContext()) ==
                       VarDecl::DeclarationOnly;
         Diag(VD->getLocation(),
              IsDecl ? diag::note_previous_decl : diag::note_defined_here)
@@ -3458,45 +3469,46 @@ Sema::ActOnOpenMPAllocateDirective(SourceLocation Loc, ArrayRef<Expr *> VarList,
     }
 
     Vars.push_back(RefExpr);
-    applyOMPAllocateAttribute(*this, VD, AllocatorKind, Allocator, Alignment,
+    applyOMPAllocateAttribute(SemaRef, VD, AllocatorKind, Allocator, Alignment,
                               DE->getSourceRange());
   }
   if (Vars.empty())
     return nullptr;
   if (!Owner)
-    Owner = getCurLexicalContext();
-  auto *D = OMPAllocateDecl::Create(Context, Owner, Loc, Vars, Clauses);
+    Owner = SemaRef.getCurLexicalContext();
+  auto *D = OMPAllocateDecl::Create(getASTContext(), Owner, Loc, Vars, Clauses);
   D->setAccess(AS_public);
   Owner->addDecl(D);
   return DeclGroupPtrTy::make(DeclGroupRef(D));
 }
 
-Sema::DeclGroupPtrTy
-Sema::ActOnOpenMPRequiresDirective(SourceLocation Loc,
-                                   ArrayRef<OMPClause *> ClauseList) {
+SemaOpenMP::DeclGroupPtrTy
+SemaOpenMP::ActOnOpenMPRequiresDirective(SourceLocation Loc,
+                                         ArrayRef<OMPClause *> ClauseList) {
   OMPRequiresDecl *D = nullptr;
-  if (!CurContext->isFileContext()) {
+  if (!SemaRef.CurContext->isFileContext()) {
     Diag(Loc, diag::err_omp_invalid_scope) << "requires";
   } else {
     D = CheckOMPRequiresDecl(Loc, ClauseList);
     if (D) {
-      CurContext->addDecl(D);
+      SemaRef.CurContext->addDecl(D);
       DSAStack->addRequiresDecl(D);
     }
   }
   return DeclGroupPtrTy::make(DeclGroupRef(D));
 }
 
-void Sema::ActOnOpenMPAssumesDirective(SourceLocation Loc,
-                                       OpenMPDirectiveKind DKind,
-                                       ArrayRef<std::string> Assumptions,
-                                       bool SkippedClauses) {
+void SemaOpenMP::ActOnOpenMPAssumesDirective(SourceLocation Loc,
+                                             OpenMPDirectiveKind DKind,
+                                             ArrayRef<std::string> Assumptions,
+                                             bool SkippedClauses) {
   if (!SkippedClauses && Assumptions.empty())
     Diag(Loc, diag::err_omp_no_clause_for_directive)
         << llvm::omp::getAllAssumeClauseOptions()
         << llvm::omp::getOpenMPDirectiveName(DKind);
 
-  auto *AA = OMPAssumeAttr::Create(Context, llvm::join(Assumptions, ","), Loc);
+  auto *AA =
+      OMPAssumeAttr::Create(getASTContext(), llvm::join(Assumptions, ","), Loc);
   if (DKind == llvm::omp::Directive::OMPD_begin_assumes) {
     OMPAssumeScoped.push_back(AA);
     return;
@@ -3515,7 +3527,7 @@ void Sema::ActOnOpenMPAssumesDirective(SourceLocation Loc,
   // declarations in included headers. To this end, we traverse all existing
   // declaration contexts and annotate function declarations here.
   SmallVector<DeclContext *, 8> DeclContexts;
-  auto *Ctx = CurContext;
+  auto *Ctx = SemaRef.CurContext;
   while (Ctx->getLexicalParent())
     Ctx = Ctx->getLexicalParent();
   DeclContexts.push_back(Ctx);
@@ -3539,13 +3551,14 @@ void Sema::ActOnOpenMPAssumesDirective(SourceLocation Loc,
   }
 }
 
-void Sema::ActOnOpenMPEndAssumesDirective() {
+void SemaOpenMP::ActOnOpenMPEndAssumesDirective() {
   assert(isInOpenMPAssumeScope() && "Not in OpenMP assumes scope!");
   OMPAssumeScoped.pop_back();
 }
 
-OMPRequiresDecl *Sema::CheckOMPRequiresDecl(SourceLocation Loc,
-                                            ArrayRef<OMPClause *> ClauseList) {
+OMPRequiresDecl *
+SemaOpenMP::CheckOMPRequiresDecl(SourceLocation Loc,
+                                 ArrayRef<OMPClause *> ClauseList) {
   /// For target specific clauses, the requires directive cannot be
   /// specified after the handling of any of the target regions in the
   /// current compilation unit.
@@ -3576,8 +3589,8 @@ OMPRequiresDecl *Sema::CheckOMPRequiresDecl(SourceLocation Loc,
   }
 
   if (!DSAStack->hasDuplicateRequiresClause(ClauseList))
-    return OMPRequiresDecl::Create(Context, getCurLexicalContext(), Loc,
-                                   ClauseList);
+    return OMPRequiresDecl::Create(
+        getASTContext(), SemaRef.getCurLexicalContext(), Loc, ClauseList);
   return nullptr;
 }
 
@@ -3695,7 +3708,7 @@ class DSAAttrChecker final : public StmtVisitor<DSAAttrChecker, void> {
   llvm::SmallVector<Expr *, 4> ImplicitMap[DefaultmapKindNum][OMPC_MAP_delete];
   llvm::SmallVector<OpenMPMapModifierKind, NumberOfOMPMapClauseModifiers>
       ImplicitMapModifier[DefaultmapKindNum];
-  Sema::VarsWithInheritedDSAType VarsWithInheritedDSA;
+  SemaOpenMP::VarsWithInheritedDSAType VarsWithInheritedDSA;
   llvm::SmallDenseSet<const ValueDecl *, 4> ImplicitDeclarations;
 
   void VisitSubCaptures(OMPExecutableDirective *S) {
@@ -4161,7 +4174,7 @@ public:
   getImplicitMapModifier(OpenMPDefaultmapClauseKind Kind) const {
     return ImplicitMapModifier[Kind];
   }
-  const Sema::VarsWithInheritedDSAType &getVarsWithInheritedDSA() const {
+  const SemaOpenMP::VarsWithInheritedDSAType &getVarsWithInheritedDSA() const {
     return VarsWithInheritedDSA;
   }
 
@@ -4193,7 +4206,9 @@ static void handleDeclareVariantConstructTrait(DSAStackTy *Stack,
   Stack->handleConstructTrait(Traits, ScopeEntry);
 }
 
-void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
+void SemaOpenMP::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind,
+                                        Scope *CurScope) {
+  ASTContext &Context = getASTContext();
   switch (DKind) {
   case OMPD_parallel:
   case OMPD_parallel_for:
@@ -4208,13 +4223,13 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
     QualType KmpInt32Ty = Context.getIntTypeForBitwidth(32, 1).withConst();
     QualType KmpInt32PtrTy =
         Context.getPointerType(KmpInt32Ty).withConst().withRestrict();
-    Sema::CapturedParamNameType Params[] = {
+    SemaOpenMP::CapturedParamNameType Params[] = {
         std::make_pair(".global_tid.", KmpInt32PtrTy),
         std::make_pair(".bound_tid.", KmpInt32PtrTy),
         std::make_pair(StringRef(), QualType()) // __context with shared vars
     };
-    ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
-                             Params);
+    SemaRef.ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope,
+                                     CR_OpenMP, Params);
     break;
   }
   case OMPD_target_teams:
@@ -4232,7 +4247,7 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
     FunctionProtoType::ExtProtoInfo EPI;
     EPI.Variadic = true;
     QualType CopyFnType = Context.getFunctionType(Context.VoidTy, Args, EPI);
-    Sema::CapturedParamNameType Params[] = {
+    SemaOpenMP::CapturedParamNameType Params[] = {
         std::make_pair(".global_tid.", KmpInt32Ty),
         std::make_pair(".part_id.", KmpInt32PtrTy),
         std::make_pair(".privates.", VoidPtrTy),
@@ -4242,31 +4257,33 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
         std::make_pair(".task_t.", Context.VoidPtrTy.withConst()),
         std::make_pair(StringRef(), QualType()) // __context with shared vars
     };
-    ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
-                             Params, /*OpenMPCaptureLevel=*/0);
+    SemaRef.ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope,
+                                     CR_OpenMP, Params,
+                                     /*OpenMPCaptureLevel=*/0);
     // Mark this captured region as inlined, because we don't use outlined
     // function directly.
-    getCurCapturedRegion()->TheCapturedDecl->addAttr(
+    SemaRef.getCurCapturedRegion()->TheCapturedDecl->addAttr(
         AlwaysInlineAttr::CreateImplicit(
             Context, {}, AlwaysInlineAttr::Keyword_forceinline));
-    SmallVector<Sema::CapturedParamNameType, 2> ParamsTarget;
+    SmallVector<SemaOpenMP::CapturedParamNameType, 2> ParamsTarget;
     if (getLangOpts().OpenMPIsTargetDevice)
       ParamsTarget.push_back(std::make_pair(StringRef("dyn_ptr"), VoidPtrTy));
     ParamsTarget.push_back(
         std::make_pair(StringRef(), QualType())); // __context with shared vars;
     // Start a captured region for 'target' with no implicit parameters.
-    ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
-                             ParamsTarget,
-                             /*OpenMPCaptureLevel=*/1);
-    Sema::CapturedParamNameType ParamsTeamsOrParallel[] = {
+    SemaRef.ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope,
+                                     CR_OpenMP, ParamsTarget,
+                                     /*OpenMPCaptureLevel=*/1);
+    SemaOpenMP::CapturedParamNameType ParamsTeamsOrParallel[] = {
         std::make_pair(".global_tid.", KmpInt32PtrTy),
         std::make_pair(".bound_tid.", KmpInt32PtrTy),
         std::make_pair(StringRef(), QualType()) // __context with shared vars
     };
     // Start a captured region for 'teams' or 'parallel'.  Both regions have
     // the same implicit parameters.
-    ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
-                             ParamsTeamsOrParallel, /*OpenMPCaptureLevel=*/2);
+    SemaRef.ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope,
+                                     CR_OpenMP, ParamsTeamsOrParallel,
+                                     /*OpenMPCaptureLevel=*/2);
     break;
   }
   case OMPD_target:
@@ -4279,7 +4296,7 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
     FunctionProtoType::ExtProtoInfo EPI;
     EPI.Variadic = true;
     QualType CopyFnType = Context.getFunctionType(Context.VoidTy, Args, EPI);
-    Sema::CapturedParamNameType Params[] = {
+    SemaOpenMP::CapturedParamNameType Params[] = {
         std::make_pair(".global_tid.", KmpInt32Ty),
         std::make_pair(".part_id.", KmpInt32PtrTy),
         std::make_pair(".privates.", VoidPtrTy),
@@ -4289,21 +4306,22 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
         std::make_pair(".task_t.", Context.VoidPtrTy.withConst()),
         std::make_pair(StringRef(), QualType()) // __context with shared vars
     };
-    ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
-                             Params, /*OpenMPCaptureLevel=*/0);
+    SemaRef.ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope,
+                                     CR_OpenMP, Params,
+                                     /*OpenMPCaptureLevel=*/0);
     // Mark this captured region as inlined, because we don't use outlined
     // function directly.
-    getCurCapturedRegion()->TheCapturedDecl->addAttr(
+    SemaRef.getCurCapturedRegion()->TheCapturedDecl->addAttr(
         AlwaysInlineAttr::CreateImplicit(
             Context, {}, AlwaysInlineAttr::Keyword_forceinline));
-    SmallVector<Sema::CapturedParamNameType, 2> ParamsTarget;
+    SmallVector<SemaOpenMP::CapturedParamNameType, 2> ParamsTarget;
     if (getLangOpts().OpenMPIsTargetDevice)
       ParamsTarget.push_back(std::make_pair(StringRef("dyn_ptr"), VoidPtrTy));
     ParamsTarget.push_back(
         std::make_pair(StringRef(), QualType())); // __context with shared vars;
-    ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
-                             ParamsTarget,
-                             /*OpenMPCaptureLevel=*/1);
+    SemaRef.ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope,
+                                     CR_OpenMP, ParamsTarget,
+                                     /*OpenMPCaptureLevel=*/1);
     break;
   }
   case OMPD_atomic:
@@ -4329,11 +4347,11 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
   case OMPD_scope:
   case OMPD_target_data:
   case OMPD_dispatch: {
-    Sema::CapturedParamNameType Params[] = {
+    SemaOpenMP::CapturedParamNameType Params[] = {
         std::make_pair(StringRef(), QualType()) // __context with shared vars
     };
-    ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
-                             Params);
+    SemaRef.ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope,
+                                     CR_OpenMP, Params);
     break;
   }
   case OMPD_task: {
@@ -4345,7 +4363,7 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
     FunctionProtoType::ExtProtoInfo EPI;
     EPI.Variadic = true;
     QualType CopyFnType = Context.getFunctionType(Context.VoidTy, Args, EPI);
-    Sema::CapturedParamNameType Params[] = {
+    SemaOpenMP::CapturedParamNameType Params[] = {
         std::make_pair(".global_tid.", KmpInt32Ty),
         std::make_pair(".part_id.", KmpInt32PtrTy),
         std::make_pair(".privates.", VoidPtrTy),
@@ -4355,11 +4373,11 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
         std::make_pair(".task_t.", Context.VoidPtrTy.withConst()),
         std::make_pair(StringRef(), QualType()) // __context with shared vars
     };
-    ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
-                             Params);
+    SemaRef.ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope,
+                                     CR_OpenMP, Params);
     // Mark this captured region as inlined, because we don't use outlined
     // function directly.
-    getCurCapturedRegion()->TheCapturedDecl->addAttr(
+    SemaRef.getCurCapturedRegion()->TheCapturedDecl->addAttr(
         AlwaysInlineAttr::CreateImplicit(
             Context, {}, AlwaysInlineAttr::Keyword_forceinline));
     break;
@@ -4386,7 +4404,7 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
     FunctionProtoType::ExtProtoInfo EPI;
     EPI.Variadic = true;
     QualType CopyFnType = Context.getFunctionType(Context.VoidTy, Args, EPI);
-    Sema::CapturedParamNameType Params[] = {
+    SemaOpenMP::CapturedParamNameType Params[] = {
         std::make_pair(".global_tid.", KmpInt32Ty),
         std::make_pair(".part_id.", KmpInt32PtrTy),
         std::make_pair(".privates.", VoidPtrTy),
@@ -4401,11 +4419,11 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
         std::make_pair(".reductions.", VoidPtrTy),
         std::make_pair(StringRef(), QualType()) // __context with shared vars
     };
-    ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
-                             Params);
+    SemaRef.ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope,
+                                     CR_OpenMP, Params);
     // Mark this captured region as inlined, because we don't use outlined
     // function directly.
-    getCurCapturedRegion()->TheCapturedDecl->addAttr(
+    SemaRef.getCurCapturedRegion()->TheCapturedDecl->addAttr(
         AlwaysInlineAttr::CreateImplicit(
             Context, {}, AlwaysInlineAttr::Keyword_forceinline));
     break;
@@ -4426,19 +4444,20 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
     QualType VoidPtrTy = Context.VoidPtrTy.withConst().withRestrict();
     QualType KmpInt32PtrTy =
         Context.getPointerType(KmpInt32Ty).withConst().withRestrict();
-    Sema::CapturedParamNameType ParamsParallel[] = {
+    SemaOpenMP::CapturedParamNameType ParamsParallel[] = {
         std::make_pair(".global_tid.", KmpInt32PtrTy),
         std::make_pair(".bound_tid.", KmpInt32PtrTy),
         std::make_pair(StringRef(), QualType()) // __context with shared vars
     };
     // Start a captured region for 'parallel'.
-    ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
-                             ParamsParallel, /*OpenMPCaptureLevel=*/0);
+    SemaRef.ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope,
+                                     CR_OpenMP, ParamsParallel,
+                                     /*OpenMPCaptureLevel=*/0);
     QualType Args[] = {VoidPtrTy};
     FunctionProtoType::ExtProtoInfo EPI;
     EPI.Variadic = true;
     QualType CopyFnType = Context.getFunctionType(Context.VoidTy, Args, EPI);
-    Sema::CapturedParamNameType Params[] = {
+    SemaOpenMP::CapturedParamNameType Params[] = {
         std::make_pair(".global_tid.", KmpInt32Ty),
         std::make_pair(".part_id.", KmpInt32PtrTy),
         std::make_pair(".privates.", VoidPtrTy),
@@ -4453,11 +4472,12 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
         std::make_pair(".reductions.", VoidPtrTy),
         std::make_pair(StringRef(), QualType()) // __context with shared vars
     };
-    ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
-                             Params, /*OpenMPCaptureLevel=*/1);
+    SemaRef.ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope,
+                                     CR_OpenMP, Params,
+                                     /*OpenMPCaptureLevel=*/1);
     // Mark this captured region as inlined, because we don't use outlined
     // function directly.
-    getCurCapturedRegion()->TheCapturedDecl->addAttr(
+    SemaRef.getCurCapturedRegion()->TheCapturedDecl->addAttr(
         AlwaysInlineAttr::CreateImplicit(
             Context, {}, AlwaysInlineAttr::Keyword_forceinline));
     break;
@@ -4467,15 +4487,15 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
     QualType KmpInt32Ty = Context.getIntTypeForBitwidth(32, 1).withConst();
     QualType KmpInt32PtrTy =
         Context.getPointerType(KmpInt32Ty).withConst().withRestrict();
-    Sema::CapturedParamNameType Params[] = {
+    SemaOpenMP::CapturedParamNameType Params[] = {
         std::make_pair(".global_tid.", KmpInt32PtrTy),
         std::make_pair(".bound_tid.", KmpInt32PtrTy),
         std::make_pair(".previous.lb.", Context.getSizeType().withConst()),
         std::make_pair(".previous.ub.", Context.getSizeType().withConst()),
         std::make_pair(StringRef(), QualType()) // __context with shared vars
     };
-    ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
-                             Params);
+    SemaRef.ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope,
+                                     CR_OpenMP, Params);
     break;
   }
   // For 'target teams loop', collect all captured regions so codegen can
@@ -4492,7 +4512,7 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
     FunctionProtoType::ExtProtoInfo EPI;
     EPI.Variadic = true;
     QualType CopyFnType = Context.getFunctionType(Context.VoidTy, Args, EPI);
-    Sema::CapturedParamNameType Params[] = {
+    SemaOpenMP::CapturedParamNameType Params[] = {
         std::make_pair(".global_tid.", KmpInt32Ty),
         std::make_pair(".part_id.", KmpInt32PtrTy),
         std::make_pair(".privates.", VoidPtrTy),
@@ -4502,32 +4522,35 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
         std::make_pair(".task_t.", Context.VoidPtrTy.withConst()),
         std::make_pair(StringRef(), QualType()) // __context with shared vars
     };
-    ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
-                             Params, /*OpenMPCaptureLevel=*/0);
+    SemaRef.ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope,
+                                     CR_OpenMP, Params,
+                                     /*OpenMPCaptureLevel=*/0);
     // Mark this captured region as inlined, because we don't use outlined
     // function directly.
-    getCurCapturedRegion()->TheCapturedDecl->addAttr(
+    SemaRef.getCurCapturedRegion()->TheCapturedDecl->addAttr(
         AlwaysInlineAttr::CreateImplicit(
             Context, {}, AlwaysInlineAttr::Keyword_forceinline));
-    SmallVector<Sema::CapturedParamNameType, 2> ParamsTarget;
+    SmallVector<SemaOpenMP::CapturedParamNameType, 2> ParamsTarget;
     if (getLangOpts().OpenMPIsTargetDevice)
       ParamsTarget.push_back(std::make_pair(StringRef("dyn_ptr"), VoidPtrTy));
     ParamsTarget.push_back(
         std::make_pair(StringRef(), QualType())); // __context with shared vars;
     // Start a captured region for 'target' with no implicit parameters.
-    ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
-                             ParamsTarget, /*OpenMPCaptureLevel=*/1);
+    SemaRef.ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope,
+                                     CR_OpenMP, ParamsTarget,
+                                     /*OpenMPCaptureLevel=*/1);
 
-    Sema::CapturedParamNameType ParamsTeams[] = {
+    SemaOpenMP::CapturedParamNameType ParamsTeams[] = {
         std::make_pair(".global_tid.", KmpInt32PtrTy),
         std::make_pair(".bound_tid.", KmpInt32PtrTy),
         std::make_pair(StringRef(), QualType()) // __context with shared vars
     };
     // Start a captured region for 'target' with no implicit parameters.
-    ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
-                             ParamsTeams, /*OpenMPCaptureLevel=*/2);
+    SemaRef.ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope,
+                                     CR_OpenMP, ParamsTeams,
+                                     /*OpenMPCaptureLevel=*/2);
 
-    Sema::CapturedParamNameType ParamsParallel[] = {
+    SemaOpenMP::CapturedParamNameType ParamsParallel[] = {
         std::make_pair(".global_tid.", KmpInt32PtrTy),
         std::make_pair(".bound_tid.", KmpInt32PtrTy),
         std::make_pair(".previous.lb.", Context.getSizeType().withConst()),
@@ -4536,8 +4559,9 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
     };
     // Start a captured region for 'teams' or 'parallel'.  Both regions have
     // the same implicit parameters.
-    ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
-                             ParamsParallel, /*OpenMPCaptureLevel=*/3);
+    SemaRef.ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope,
+                                     CR_OpenMP, ParamsParallel,
+                                     /*OpenMPCaptureLevel=*/3);
     break;
   }
 
@@ -4548,16 +4572,17 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
     QualType KmpInt32PtrTy =
         Context.getPointerType(KmpInt32Ty).withConst().withRestrict();
 
-    Sema::CapturedParamNameType ParamsTeams[] = {
+    SemaOpenMP::CapturedParamNameType ParamsTeams[] = {
         std::make_pair(".global_tid.", KmpInt32PtrTy),
         std::make_pair(".bound_tid.", KmpInt32PtrTy),
         std::make_pair(StringRef(), QualType()) // __context with shared vars
     };
     // Start a captured region for 'target' with no implicit parameters.
-    ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
-                             ParamsTeams, /*OpenMPCaptureLevel=*/0);
+    SemaRef.ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope,
+                                     CR_OpenMP, ParamsTeams,
+                                     /*OpenMPCaptureLevel=*/0);
 
-    Sema::CapturedParamNameType ParamsParallel[] = {
+    SemaOpenMP::CapturedParamNameType ParamsParallel[] = {
         std::make_pair(".global_tid.", KmpInt32PtrTy),
         std::make_pair(".bound_tid.", KmpInt32PtrTy),
         std::make_pair(".previous.lb.", Context.getSizeType().withConst()),
@@ -4566,8 +4591,9 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
     };
     // Start a captured region for 'teams' or 'parallel'.  Both regions have
     // the same implicit parameters.
-    ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
-                             ParamsParallel, /*OpenMPCaptureLevel=*/1);
+    SemaRef.ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope,
+                                     CR_OpenMP, ParamsParallel,
+                                     /*OpenMPCaptureLevel=*/1);
     break;
   }
   case OMPD_target_update:
@@ -4581,7 +4607,7 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
     FunctionProtoType::ExtProtoInfo EPI;
     EPI.Variadic = true;
     QualType CopyFnType = Context.getFunctionType(Context.VoidTy, Args, EPI);
-    Sema::CapturedParamNameType Params[] = {
+    SemaOpenMP::CapturedParamNameType Params[] = {
         std::make_pair(".global_tid.", KmpInt32Ty),
         std::make_pair(".part_id.", KmpInt32PtrTy),
         std::make_pair(".privates.", VoidPtrTy),
@@ -4591,11 +4617,11 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
         std::make_pair(".task_t.", Context.VoidPtrTy.withConst()),
         std::make_pair(StringRef(), QualType()) // __context with shared vars
     };
-    ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
-                             Params);
+    SemaRef.ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope,
+                                     CR_OpenMP, Params);
     // Mark this captured region as inlined, because we don't use outlined
     // function directly.
-    getCurCapturedRegion()->TheCapturedDecl->addAttr(
+    SemaRef.getCurCapturedRegion()->TheCapturedDecl->addAttr(
         AlwaysInlineAttr::CreateImplicit(
             Context, {}, AlwaysInlineAttr::Keyword_forceinline));
     break;
@@ -4626,15 +4652,15 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
   default:
     llvm_unreachable("Unknown OpenMP directive");
   }
-  DSAStack->setContext(CurContext);
+  DSAStack->setContext(SemaRef.CurContext);
   handleDeclareVariantConstructTrait(DSAStack, DKind, /* ScopeEntry */ true);
 }
 
-int Sema::getNumberOfConstructScopes(unsigned Level) const {
+int SemaOpenMP::getNumberOfConstructScopes(unsigned Level) const {
   return getOpenMPCaptureLevels(DSAStack->getDirective(Level));
 }
 
-int Sema::getOpenMPCaptureLevels(OpenMPDirectiveKind DKind) {
+int SemaOpenMP::getOpenMPCaptureLevels(OpenMPDirectiveKind DKind) {
   SmallVector<OpenMPDirectiveKind, 4> CaptureRegions;
   getOpenMPCaptureRegions(CaptureRegions, DKind);
   return CaptureRegions.size();
@@ -4674,7 +4700,7 @@ static OMPCapturedExprDecl *buildCaptureDecl(Sema &S, IdentifierInfo *Id,
 static DeclRefExpr *buildCapture(Sema &S, ValueDecl *D, Expr *CaptureExpr,
                                  bool WithInit) {
   OMPCapturedExprDecl *CD;
-  if (VarDecl *VD = S.isOpenMPCapturedDecl(D))
+  if (VarDecl *VD = S.OpenMP().isOpenMPCapturedDecl(D))
     CD = cast<OMPCapturedExprDecl>(VD);
   else
     CD = buildCaptureDecl(S, D->getIdentifier(), CaptureExpr, WithInit,
@@ -4726,7 +4752,7 @@ public:
       : S(S), ErrorFound(ErrorFound), DKind(DKind) {}
   ~CaptureRegionUnwinderRAII() {
     if (ErrorFound) {
-      int ThisCaptureLevel = S.getOpenMPCaptureLevels(DKind);
+      int ThisCaptureLevel = S.OpenMP().getOpenMPCaptureLevels(DKind);
       while (--ThisCaptureLevel >= 0)
         S.ActOnCapturedRegionError();
     }
@@ -4734,10 +4760,10 @@ public:
 };
 } // namespace
 
-void Sema::tryCaptureOpenMPLambdas(ValueDecl *V) {
+void SemaOpenMP::tryCaptureOpenMPLambdas(ValueDecl *V) {
   // Capture variables captured by reference in lambdas for target-based
   // directives.
-  if (!CurContext->isDependentContext() &&
+  if (!SemaRef.CurContext->isDependentContext() &&
       (isOpenMPTargetExecutionDirective(DSAStack->getCurrentDirective()) ||
        isOpenMPTargetDataManagementDirective(
            DSAStack->getCurrentDirective()))) {
@@ -4757,14 +4783,14 @@ void Sema::tryCaptureOpenMPLambdas(ValueDecl *V) {
           if (LC.getCaptureKind() == LCK_ByRef) {
             VarDecl *VD = cast<VarDecl>(LC.getCapturedVar());
             DeclContext *VDC = VD->getDeclContext();
-            if (!VDC->Encloses(CurContext))
+            if (!VDC->Encloses(SemaRef.CurContext))
               continue;
-            MarkVariableReferenced(LC.getLocation(), VD);
+            SemaRef.MarkVariableReferenced(LC.getLocation(), VD);
           } else if (LC.getCaptureKind() == LCK_This) {
-            QualType ThisTy = getCurrentThisType();
-            if (!ThisTy.isNull() &&
-                Context.typesAreCompatible(ThisTy, ThisCapture->getType()))
-              CheckCXXThisCapture(LC.getLocation());
+            QualType ThisTy = SemaRef.getCurrentThisType();
+            if (!ThisTy.isNull() && getASTContext().typesAreCompatible(
+                                        ThisTy, ThisCapture->getType()))
+              SemaRef.CheckCXXThisCapture(LC.getLocation());
           }
         }
       }
@@ -4804,8 +4830,8 @@ static bool checkOrderedOrderSpecified(Sema &S,
   return false;
 }
 
-StmtResult Sema::ActOnOpenMPRegionEnd(StmtResult S,
-                                      ArrayRef<OMPClause *> Clauses) {
+StmtResult SemaOpenMP::ActOnOpenMPRegionEnd(StmtResult S,
+                                            ArrayRef<OMPClause *> Clauses) {
   handleDeclareVariantConstructTrait(DSAStack, DSAStack->getCurrentDirective(),
                                      /* ScopeEntry */ false);
   if (DSAStack->getCurrentDirective() == OMPD_atomic ||
@@ -4817,7 +4843,7 @@ StmtResult Sema::ActOnOpenMPRegionEnd(StmtResult S,
 
   bool ErrorFound = false;
   CaptureRegionUnwinderRAII CaptureRegionUnwinder(
-      *this, ErrorFound, DSAStack->getCurrentDirective());
+      SemaRef, ErrorFound, DSAStack->getCurrentDirective());
   if (!S.isUsable()) {
     ErrorFound = true;
     return StmtError();
@@ -4831,7 +4857,7 @@ StmtResult Sema::ActOnOpenMPRegionEnd(StmtResult S,
   SmallVector<const OMPClauseWithPreInit *, 4> PICs;
   // This is required for proper codegen.
   for (OMPClause *Clause : Clauses) {
-    if (!LangOpts.OpenMPSimd &&
+    if (!getLangOpts().OpenMPSimd &&
         (isOpenMPTaskingDirective(DSAStack->getCurrentDirective()) ||
          DSAStack->getCurrentDirective() == OMPD_target) &&
         Clause->getClauseKind() == OMPC_in_reduction) {
@@ -4840,7 +4866,7 @@ StmtResult Sema::ActOnOpenMPRegionEnd(StmtResult S,
       auto *IRC = cast<OMPInReductionClause>(Clause);
       for (Expr *E : IRC->taskgroup_descriptors())
         if (E)
-          MarkDeclarationsReferencedInExpr(E);
+          SemaRef.MarkDeclarationsReferencedInExpr(E);
     }
     if (isOpenMPPrivate(Clause->getClauseKind()) ||
         Clause->getClauseKind() == OMPC_copyprivate ||
@@ -4851,7 +4877,7 @@ StmtResult Sema::ActOnOpenMPRegionEnd(StmtResult S,
       // Mark all variables in private list clauses as used in inner region.
       for (Stmt *VarRef : Clause->children()) {
         if (auto *E = cast_or_null<Expr>(VarRef)) {
-          MarkDeclarationsReferencedInExpr(E);
+          SemaRef.MarkDeclarationsReferencedInExpr(E);
         }
       }
       DSAStack->setForceVarCapturing(/*V=*/false);
@@ -4865,7 +4891,7 @@ StmtResult Sema::ActOnOpenMPRegionEnd(StmtResult S,
         PICs.push_back(C);
       if (auto *C = OMPClauseWithPostUpdate::get(Clause)) {
         if (Expr *E = C->getPostUpdateExpr())
-          MarkDeclarationsReferencedInExpr(E);
+          SemaRef.MarkDeclarationsReferencedInExpr(E);
       }
     }
     if (Clause->getClauseKind() == OMPC_schedule)
@@ -4877,7 +4903,7 @@ StmtResult Sema::ActOnOpenMPRegionEnd(StmtResult S,
   }
   // Capture allocator expressions if used.
   for (Expr *E : DSAStack->getInnerAllocators())
-    MarkDeclarationsReferencedInExpr(E);
+    SemaRef.MarkDeclarationsReferencedInExpr(E);
   // OpenMP, 2.7.1 Loop Construct, Restrictions
   // The nonmonotonic modifier cannot be specified if an ordered clause is
   // specified.
@@ -4899,7 +4925,7 @@ StmtResult Sema::ActOnOpenMPRegionEnd(StmtResult S,
   // OpenMP 5.0, 2.9.2 Worksharing-Loop Construct, Restrictions.
   // If an order(concurrent) clause is present, an ordered clause may not appear
   // on the same directive.
-  if (checkOrderedOrderSpecified(*this, Clauses))
+  if (checkOrderedOrderSpecified(SemaRef, Clauses))
     ErrorFound = true;
   if (!LCs.empty() && OC && OC->getNumForLoops()) {
     for (const OMPLinearClause *C : LCs) {
@@ -4936,7 +4962,8 @@ StmtResult Sema::ActOnOpenMPRegionEnd(StmtResult S,
             CaptureRegion == OMPD_unknown) {
           if (auto *DS = cast_or_null<DeclStmt>(C->getPreInitStmt())) {
             for (Decl *D : DS->decls())
-              MarkVariableReferenced(D->getLocation(), cast<VarDecl>(D));
+              SemaRef.MarkVariableReferenced(D->getLocation(),
+                                             cast<VarDecl>(D));
           }
         }
       }
@@ -4950,7 +4977,7 @@ StmtResult Sema::ActOnOpenMPRegionEnd(StmtResult S,
                ++I) {
             OMPUsesAllocatorsClause::Data D = UAC->getAllocatorData(I);
             if (Expr *E = D.AllocatorTraits)
-              MarkDeclarationsReferencedInExpr(E);
+              SemaRef.MarkDeclarationsReferencedInExpr(E);
           }
           continue;
         }
@@ -4965,17 +4992,17 @@ StmtResult Sema::ActOnOpenMPRegionEnd(StmtResult S,
             continue;
           for (Expr *E : RC->copy_array_temps())
             if (E)
-              MarkDeclarationsReferencedInExpr(E);
+              SemaRef.MarkDeclarationsReferencedInExpr(E);
         }
         if (auto *AC = dyn_cast<OMPAlignedClause>(C)) {
           for (Expr *E : AC->varlists())
-            MarkDeclarationsReferencedInExpr(E);
+            SemaRef.MarkDeclarationsReferencedInExpr(E);
         }
       }
     }
     if (++CompletedRegions == CaptureRegions.size())
       DSAStack->setBodyComplete();
-    SR = ActOnCapturedRegionEnd(SR.get());
+    SR = SemaRef.ActOnCapturedRegionEnd(SR.get());
   }
   return SR;
 }
@@ -5782,9 +5809,9 @@ static CapturedStmt *buildLoopVarFunc(Sema &Actions, QualType LoopVarTy,
   // the OpenMPIRBuilder to know additional C/C++ semantics, such as how to
   // invoke a copy constructor.
   QualType TargetParamTy = Ctx.getLValueReferenceType(LoopVarTy);
-  Sema::CapturedParamNameType Params[] = {{"LoopVar", TargetParamTy},
-                                          {"Logical", LogicalTy},
-                                          {StringRef(), QualType()}};
+  SemaOpenMP::CapturedParamNameType Params[] = {{"LoopVar", TargetParamTy},
+                                                {"Logical", LogicalTy},
+                                                {StringRef(), QualType()}};
   Actions.ActOnCapturedRegionStart({}, nullptr, CR_Default, Params);
 
   // Capture the initial iterator which represents the LoopVar value at the
@@ -5835,7 +5862,7 @@ static CapturedStmt *buildLoopVarFunc(Sema &Actions, QualType LoopVarTy,
       AssertSuccess(Actions.ActOnCapturedRegionEnd(Body)));
 }
 
-StmtResult Sema::ActOnOpenMPCanonicalLoop(Stmt *AStmt) {
+StmtResult SemaOpenMP::ActOnOpenMPCanonicalLoop(Stmt *AStmt) {
   ASTContext &Ctx = getASTContext();
 
   // Extract the common elements of ForStmt and CXXForRangeStmt:
@@ -5946,8 +5973,8 @@ StmtResult Sema::ActOnOpenMPCanonicalLoop(Stmt *AStmt) {
     if (IncBin->getOpcode() == BO_AddAssign) {
       Step = IncBin->getRHS();
     } else if (IncBin->getOpcode() == BO_SubAssign) {
-      Step =
-          AssertSuccess(BuildUnaryOp(nullptr, {}, UO_Minus, IncBin->getRHS()));
+      Step = AssertSuccess(
+          SemaRef.BuildUnaryOp(nullptr, {}, UO_Minus, IncBin->getRHS()));
     } else
       llvm_unreachable("unhandled binary increment operator");
   } else if (auto *CondCXXOp = dyn_cast<CXXOperatorCallExpr>(Inc)) {
@@ -5965,7 +5992,7 @@ StmtResult Sema::ActOnOpenMPCanonicalLoop(Stmt *AStmt) {
       break;
     case OO_MinusEqual:
       Step = AssertSuccess(
-          BuildUnaryOp(nullptr, {}, UO_Minus, CondCXXOp->getArg(1)));
+          SemaRef.BuildUnaryOp(nullptr, {}, UO_Minus, CondCXXOp->getArg(1)));
       break;
     default:
       llvm_unreachable("unhandled overloaded increment operator");
@@ -5974,16 +6001,17 @@ StmtResult Sema::ActOnOpenMPCanonicalLoop(Stmt *AStmt) {
     llvm_unreachable("unknown increment expression");
 
   CapturedStmt *DistanceFunc =
-      buildDistanceFunc(*this, LogicalTy, CondRel, LHS, RHS, Step);
+      buildDistanceFunc(SemaRef, LogicalTy, CondRel, LHS, RHS, Step);
   CapturedStmt *LoopVarFunc = buildLoopVarFunc(
-      *this, LVTy, LogicalTy, CounterRef, Step, isa<CXXForRangeStmt>(AStmt));
-  DeclRefExpr *LVRef = BuildDeclRefExpr(LUVDecl, LUVDecl->getType(), VK_LValue,
-                                        {}, nullptr, nullptr, {}, nullptr);
+      SemaRef, LVTy, LogicalTy, CounterRef, Step, isa<CXXForRangeStmt>(AStmt));
+  DeclRefExpr *LVRef =
+      SemaRef.BuildDeclRefExpr(LUVDecl, LUVDecl->getType(), VK_LValue, {},
+                               nullptr, nullptr, {}, nullptr);
   return OMPCanonicalLoop::create(getASTContext(), AStmt, DistanceFunc,
                                   LoopVarFunc, LVRef);
 }
 
-StmtResult Sema::ActOnOpenMPLoopnest(Stmt *AStmt) {
+StmtResult SemaOpenMP::ActOnOpenMPLoopnest(Stmt *AStmt) {
   // Handle a literal loop.
   if (isa<ForStmt>(AStmt) || isa<CXXForRangeStmt>(AStmt))
     return ActOnOpenMPCanonicalLoop(AStmt);
@@ -6128,7 +6156,7 @@ processImplicitMapsWithDefaultMappers(Sema &S, DSAStackTy *Stack,
       continue;
     CXXScopeSpec MapperIdScopeSpec;
     DeclarationNameInfo MapperId;
-    if (OMPClause *NewClause = S.ActOnOpenMPMapClause(
+    if (OMPClause *NewClause = S.OpenMP().ActOnOpenMPMapClause(
             nullptr, C->getMapTypeModifiers(), C->getMapTypeModifiersLoc(),
             MapperIdScopeSpec, MapperId, C->getMapType(),
             /*IsMapTypeImplicit=*/true, SourceLocation(), SourceLocation(),
@@ -6210,14 +6238,12 @@ static bool teamsLoopCanBeParallelFor(Stmt *AStmt, Sema &SemaRef) {
   return Checker.teamsLoopCanBeParallelFor();
 }
 
-bool Sema::mapLoopConstruct(llvm::SmallVector<OMPClause *> &ClausesWithoutBind,
-                            ArrayRef<OMPClause *> Clauses,
-                            OpenMPBindClauseKind &BindKind,
-                            OpenMPDirectiveKind &Kind,
-                            OpenMPDirectiveKind &PrevMappedDirective,
-                            SourceLocation StartLoc, SourceLocation EndLoc,
-                            const DeclarationNameInfo &DirName,
-                            OpenMPDirectiveKind CancelRegion) {
+bool SemaOpenMP::mapLoopConstruct(
+    llvm::SmallVector<OMPClause *> &ClausesWithoutBind,
+    ArrayRef<OMPClause *> Clauses, OpenMPBindClauseKind &BindKind,
+    OpenMPDirectiveKind &Kind, OpenMPDirectiveKind &PrevMappedDirective,
+    SourceLocation StartLoc, SourceLocation EndLoc,
+    const DeclarationNameInfo &DirName, OpenMPDirectiveKind CancelRegion) {
 
   bool UseClausesWithoutBind = false;
 
@@ -6299,7 +6325,7 @@ bool Sema::mapLoopConstruct(llvm::SmallVector<OMPClause *> &ClausesWithoutBind,
   return UseClausesWithoutBind;
 }
 
-StmtResult Sema::ActOnOpenMPExecutableDirective(
+StmtResult SemaOpenMP::ActOnOpenMPExecutableDirective(
     OpenMPDirectiveKind Kind, const DeclarationNameInfo &DirName,
     OpenMPDirectiveKind CancelRegion, ArrayRef<OMPClause *> Clauses,
     Stmt *AStmt, SourceLocation StartLoc, SourceLocation EndLoc,
@@ -6324,8 +6350,8 @@ StmtResult Sema::ActOnOpenMPExecutableDirective(
   }
 
   // First check CancelRegion which is then used in checkNestingOfRegions.
-  if (checkCancelRegion(*this, Kind, CancelRegion, StartLoc) ||
-      checkNestingOfRegions(*this, DSAStack, DK, DirName, CancelRegion,
+  if (checkCancelRegion(SemaRef, Kind, CancelRegion, StartLoc) ||
+      checkNestingOfRegions(SemaRef, DSAStack, DK, DirName, CancelRegion,
                             BindKind, StartLoc)) {
     return StmtError();
   }
@@ -6344,13 +6370,14 @@ StmtResult Sema::ActOnOpenMPExecutableDirective(
   } else {
     ClausesWithImplicit.append(Clauses.begin(), Clauses.end());
   }
-  if (AStmt && !CurContext->isDependentContext() && Kind != OMPD_atomic &&
-      Kind != OMPD_critical && Kind != OMPD_section && Kind != OMPD_master &&
-      Kind != OMPD_masked && !isOpenMPLoopTransformationDirective(Kind)) {
+  if (AStmt && !SemaRef.CurContext->isDependentContext() &&
+      Kind != OMPD_atomic && Kind != OMPD_critical && Kind != OMPD_section &&
+      Kind != OMPD_master && Kind != OMPD_masked &&
+      !isOpenMPLoopTransformationDirective(Kind)) {
     assert(isa<CapturedStmt>(AStmt) && "Captured statement expected");
 
     // Check default data sharing attributes for referenced variables.
-    DSAAttrChecker DSAChecker(DSAStack, *this, cast<CapturedStmt>(AStmt));
+    DSAAttrChecker DSAChecker(DSAStack, SemaRef, cast<CapturedStmt>(AStmt));
     int ThisCaptureLevel = getOpenMPCaptureLevels(Kind);
     Stmt *S = AStmt;
     while (--ThisCaptureLevel >= 0)
@@ -6490,8 +6517,8 @@ StmtResult Sema::ActOnOpenMPExecutableDirective(
     }
     // Build expressions for implicit maps of data members with 'default'
     // mappers.
-    if (LangOpts.OpenMP >= 50)
-      processImplicitMapsWithDefaultMappers(*this, DSAStack,
+    if (getLangOpts().OpenMP >= 50)
+      processImplicitMapsWithDefaultMappers(SemaRef, DSAStack,
                                             ClausesWithImplicit);
   }
 
@@ -6505,7 +6532,7 @@ StmtResult Sema::ActOnOpenMPExecutableDirective(
   case OMPD_simd:
     Res = ActOnOpenMPSimdDirective(ClausesWithImplicit, AStmt, StartLoc, EndLoc,
                                    VarsWithInheritedDSA);
-    if (LangOpts.OpenMP >= 50)
+    if (getLangOpts().OpenMP >= 50)
       AllowedNameModifiers.push_back(OMPD_simd);
     break;
   case OMPD_tile:
@@ -6523,7 +6550,7 @@ StmtResult Sema::ActOnOpenMPExecutableDirective(
   case OMPD_for_simd:
     Res = ActOnOpenMPForSimdDirective(ClausesWithImplicit, AStmt, StartLoc,
                                       EndLoc, VarsWithInheritedDSA);
-    if (LangOpts.OpenMP >= 50)
+    if (getLangOpts().OpenMP >= 50)
       AllowedNameModifiers.push_back(OMPD_simd);
     break;
   case OMPD_sections:
@@ -6561,7 +6588,7 @@ StmtResult Sema::ActOnOpenMPExecutableDirective(
     Res = ActOnOpenMPParallelForSimdDirective(
         ClausesWithImplicit, AStmt, StartLoc, EndLoc, VarsWithInheritedDSA);
     AllowedNameModifiers.push_back(OMPD_parallel);
-    if (LangOpts.OpenMP >= 50)
+    if (getLangOpts().OpenMP >= 50)
       AllowedNameModifiers.push_back(OMPD_simd);
     break;
   case OMPD_scope:
@@ -6698,7 +6725,7 @@ StmtResult Sema::ActOnOpenMPExecutableDirective(
     Res = ActOnOpenMPTaskLoopSimdDirective(ClausesWithImplicit, AStmt, StartLoc,
                                            EndLoc, VarsWithInheritedDSA);
     AllowedNameModifiers.push_back(OMPD_taskloop);
-    if (LangOpts.OpenMP >= 50)
+    if (getLangOpts().OpenMP >= 50)
       AllowedNameModifiers.push_back(OMPD_simd);
     break;
   case OMPD_master_taskloop:
@@ -6715,13 +6742,13 @@ StmtResult Sema::ActOnOpenMPExecutableDirective(
     Res = ActOnOpenMPMasterTaskLoopSimdDirective(
         ClausesWithImplicit, AStmt, StartLoc, EndLoc, VarsWithInheritedDSA);
     AllowedNameModifiers.push_back(OMPD_taskloop);
-    if (LangOpts.OpenMP >= 50)
+    if (getLangOpts().OpenMP >= 50)
       AllowedNameModifiers.push_back(OMPD_simd);
     break;
   case OMPD_masked_taskloop_simd:
     Res = ActOnOpenMPMaskedTaskLoopSimdDirective(
         ClausesWithImplicit, AStmt, StartLoc, EndLoc, VarsWithInheritedDSA);
-    if (LangOpts.OpenMP >= 51) {
+    if (getLangOpts().OpenMP >= 51) {
       AllowedNameModifiers.push_back(OMPD_taskloop);
       AllowedNameModifiers.push_back(OMPD_simd);
     }
@@ -6735,7 +6762,7 @@ StmtResult Sema::ActOnOpenMPExecutableDirective(
   case OMPD_parallel_masked_taskloop:
     Res = ActOnOpenMPParallelMaskedTaskLoopDirective(
         ClausesWithImplicit, AStmt, StartLoc, EndLoc, VarsWithInheritedDSA);
-    if (LangOpts.OpenMP >= 51) {
+    if (getLangOpts().OpenMP >= 51) {
       AllowedNameModifiers.push_back(OMPD_taskloop);
       AllowedNameModifiers.push_back(OMPD_parallel);
     }
@@ -6745,13 +6772,13 @@ StmtResult Sema::ActOnOpenMPExecutableDirective(
         ClausesWithImplicit, AStmt, StartLoc, EndLoc, VarsWithInheritedDSA);
     AllowedNameModifiers.push_back(OMPD_taskloop);
     AllowedNameModifiers.push_back(OMPD_parallel);
-    if (LangOpts.OpenMP >= 50)
+    if (getLangOpts().OpenMP >= 50)
       AllowedNameModifiers.push_back(OMPD_simd);
     break;
   case OMPD_parallel_masked_taskloop_simd:
     Res = ActOnOpenMPParallelMaskedTaskLoopSimdDirective(
         ClausesWithImplicit, AStmt, StartLoc, EndLoc, VarsWithInheritedDSA);
-    if (LangOpts.OpenMP >= 51) {
+    if (getLangOpts().OpenMP >= 51) {
       AllowedNameModifiers.push_back(OMPD_taskloop);
       AllowedNameModifiers.push_back(OMPD_parallel);
       AllowedNameModifiers.push_back(OMPD_simd);
@@ -6775,13 +6802,13 @@ StmtResult Sema::ActOnOpenMPExecutableDirective(
     Res = ActOnOpenMPDistributeParallelForSimdDirective(
         ClausesWithImplicit, AStmt, StartLoc, EndLoc, VarsWithInheritedDSA);
     AllowedNameModifiers.push_back(OMPD_parallel);
-    if (LangOpts.OpenMP >= 50)
+    if (getLangOpts().OpenMP >= 50)
       AllowedNameModifiers.push_back(OMPD_simd);
     break;
   case OMPD_distribute_simd:
     Res = ActOnOpenMPDistributeSimdDirective(
         ClausesWithImplicit, AStmt, StartLoc, EndLoc, VarsWithInheritedDSA);
-    if (LangOpts.OpenMP >= 50)
+    if (getLangOpts().OpenMP >= 50)
       AllowedNameModifiers.push_back(OMPD_simd);
     break;
   case OMPD_target_parallel_for_simd:
@@ -6789,14 +6816,14 @@ StmtResult Sema::ActOnOpenMPExecutableDirective(
         ClausesWithImplicit, AStmt, StartLoc, EndLoc, VarsWithInheritedDSA);
     AllowedNameModifiers.push_back(OMPD_target);
     AllowedNameModifiers.push_back(OMPD_parallel);
-    if (LangOpts.OpenMP >= 50)
+    if (getLangOpts().OpenMP >= 50)
       AllowedNameModifiers.push_back(OMPD_simd);
     break;
   case OMPD_target_simd:
     Res = ActOnOpenMPTargetSimdDirective(ClausesWithImplicit, AStmt, StartLoc,
                                          EndLoc, VarsWithInheritedDSA);
     AllowedNameModifiers.push_back(OMPD_target);
-    if (LangOpts.OpenMP >= 50)
+    if (getLangOpts().OpenMP >= 50)
       AllowedNameModifiers.push_back(OMPD_simd);
     break;
   case OMPD_teams_distribute:
@@ -6806,14 +6833,14 @@ StmtResult Sema::ActOnOpenMPExecutableDirective(
   case OMPD_teams_distribute_simd:
     Res = ActOnOpenMPTeamsDistributeSimdDirective(
         ClausesWithImplicit, AStmt, StartLoc, EndLoc, VarsWithInheritedDSA);
-    if (LangOpts.OpenMP >= 50)
+    if (getLangOpts().OpenMP >= 50)
       AllowedNameModifiers.push_back(OMPD_simd);
     break;
   case OMPD_teams_distribute_parallel_for_simd:
     Res = ActOnOpenMPTeamsDistributeParallelForSimdDirective(
         ClausesWithImplicit, AStmt, StartLoc, EndLoc, VarsWithInheritedDSA);
     AllowedNameModifiers.push_back(OMPD_parallel);
-    if (LangOpts.OpenMP >= 50)
+    if (getLangOpts().OpenMP >= 50)
       AllowedNameModifiers.push_back(OMPD_simd);
     break;
   case OMPD_teams_distribute_parallel_for:
@@ -6842,14 +6869,14 @@ StmtResult Sema::ActOnOpenMPExecutableDirective(
         ClausesWithImplicit, AStmt, StartLoc, EndLoc, VarsWithInheritedDSA);
     AllowedNameModifiers.push_back(OMPD_target);
     AllowedNameModifiers.push_back(OMPD_parallel);
-    if (LangOpts.OpenMP >= 50)
+    if (getLangOpts().OpenMP >= 50)
       AllowedNameModifiers.push_back(OMPD_simd);
     break;
   case OMPD_target_teams_distribute_simd:
     Res = ActOnOpenMPTargetTeamsDistributeSimdDirective(
         ClausesWithImplicit, AStmt, StartLoc, EndLoc, VarsWithInheritedDSA);
     AllowedNameModifiers.push_back(OMPD_target);
-    if (LangOpts.OpenMP >= 50)
+    if (getLangOpts().OpenMP >= 50)
       AllowedNameModifiers.push_back(OMPD_simd);
     break;
   case OMPD_interop:
@@ -6906,7 +6933,7 @@ StmtResult Sema::ActOnOpenMPExecutableDirective(
   if (DSAStack->getDefaultDSA() == DSA_none ||
       DSAStack->getDefaultDSA() == DSA_private ||
       DSAStack->getDefaultDSA() == DSA_firstprivate) {
-    DSAAttrChecker DSAChecker(DSAStack, *this, nullptr);
+    DSAAttrChecker DSAChecker(DSAStack, SemaRef, nullptr);
     for (OMPClause *C : Clauses) {
       switch (C->getClauseKind()) {
       case OMPC_num_threads:
@@ -7043,13 +7070,13 @@ StmtResult Sema::ActOnOpenMPExecutableDirective(
   }
 
   if (!AllowedNameModifiers.empty())
-    ErrorFound = checkIfClauses(*this, Kind, Clauses, AllowedNameModifiers) ||
+    ErrorFound = checkIfClauses(SemaRef, Kind, Clauses, AllowedNameModifiers) ||
                  ErrorFound;
 
   if (ErrorFound)
     return StmtError();
 
-  if (!CurContext->isDependentContext() &&
+  if (!SemaRef.CurContext->isDependentContext() &&
       isOpenMPTargetExecutionDirective(Kind) &&
       !(DSAStack->hasRequiresDeclWithClause<OMPUnifiedSharedMemoryClause>() ||
         DSAStack->hasRequiresDeclWithClause<OMPUnifiedAddressClause>() ||
@@ -7062,7 +7089,7 @@ StmtResult Sema::ActOnOpenMPExecutableDirective(
   return Res;
 }
 
-Sema::DeclGroupPtrTy Sema::ActOnOpenMPDeclareSimdDirective(
+SemaOpenMP::DeclGroupPtrTy SemaOpenMP::ActOnOpenMPDeclareSimdDirective(
     DeclGroupPtrTy DG, OMPDeclareSimdDeclAttr::BranchStateTy BS, Expr *Simdlen,
     ArrayRef<Expr *> Uniforms, ArrayRef<Expr *> Aligneds,
     ArrayRef<Expr *> Alignments, ArrayRef<Expr *> Linears,
@@ -7297,13 +7324,15 @@ Sema::DeclGroupPtrTy Sema::ActOnOpenMPDeclareSimdDirective(
       NewStep = PerformOpenMPImplicitIntegerConversion(Step->getExprLoc(), Step)
                     .get();
       if (NewStep)
-        NewStep =
-            VerifyIntegerConstantExpression(NewStep, /*FIXME*/ AllowFold).get();
+        NewStep = SemaRef
+                      .VerifyIntegerConstantExpression(
+                          NewStep, /*FIXME*/ Sema::AllowFold)
+                      .get();
     }
     NewSteps.push_back(NewStep);
   }
   auto *NewAttr = OMPDeclareSimdDeclAttr::CreateImplicit(
-      Context, BS, SL.get(), const_cast<Expr **>(Uniforms.data()),
+      getASTContext(), BS, SL.get(), const_cast<Expr **>(Uniforms.data()),
       Uniforms.size(), const_cast<Expr **>(Aligneds.data()), Aligneds.size(),
       const_cast<Expr **>(NewAligns.data()), NewAligns.size(),
       const_cast<Expr **>(Linears.data()), Linears.size(),
@@ -7336,7 +7365,7 @@ static void setPrototype(Sema &S, FunctionDecl *FD, FunctionDecl *FDWithProto,
   FD->setParams(Params);
 }
 
-void Sema::ActOnFinishedFunctionDefinitionInOpenMPAssumeScope(Decl *D) {
+void SemaOpenMP::ActOnFinishedFunctionDefinitionInOpenMPAssumeScope(Decl *D) {
   if (D->isInvalidDecl())
     return;
   FunctionDecl *FD = nullptr;
@@ -7349,7 +7378,7 @@ void Sema::ActOnFinishedFunctionDefinitionInOpenMPAssumeScope(Decl *D) {
   // If we are instantiating templates we do *not* apply scoped assumptions but
   // only global ones. We apply scoped assumption to the template definition
   // though.
-  if (!inTemplateInstantiation()) {
+  if (!SemaRef.inTemplateInstantiation()) {
     for (OMPAssumeAttr *AA : OMPAssumeScoped)
       FD->addAttr(AA);
   }
@@ -7357,10 +7386,10 @@ void Sema::ActOnFinishedFunctionDefinitionInOpenMPAssumeScope(Decl *D) {
     FD->addAttr(AA);
 }
 
-Sema::OMPDeclareVariantScope::OMPDeclareVariantScope(OMPTraitInfo &TI)
+SemaOpenMP::OMPDeclareVariantScope::OMPDeclareVariantScope(OMPTraitInfo &TI)
     : TI(&TI), NameSuffix(TI.getMangledName()) {}
 
-void Sema::ActOnStartOfFunctionDefinitionInOpenMPDeclareVariantScope(
+void SemaOpenMP::ActOnStartOfFunctionDefinitionInOpenMPDeclareVariantScope(
     Scope *S, Declarator &D, MultiTemplateParamsArg TemplateParamLists,
     SmallVectorImpl<FunctionDecl *> &Bases) {
   if (!D.getIdentifier())
@@ -7376,11 +7405,11 @@ void Sema::ActOnStartOfFunctionDefinitionInOpenMPDeclareVariantScope(
     return;
 
   const IdentifierInfo *BaseII = D.getIdentifier();
-  LookupResult Lookup(*this, DeclarationName(BaseII), D.getIdentifierLoc(),
-                      LookupOrdinaryName);
-  LookupParsedName(Lookup, S, &D.getCXXScopeSpec());
+  LookupResult Lookup(SemaRef, DeclarationName(BaseII), D.getIdentifierLoc(),
+                      Sema::LookupOrdinaryName);
+  SemaRef.LookupParsedName(Lookup, S, &D.getCXXScopeSpec());
 
-  TypeSourceInfo *TInfo = GetTypeForDeclarator(D);
+  TypeSourceInfo *TInfo = SemaRef.GetTypeForDeclarator(D);
   QualType FType = TInfo->getType();
 
   bool IsConstexpr =
@@ -7409,7 +7438,7 @@ void Sema::ActOnStartOfFunctionDefinitionInOpenMPDeclareVariantScope(
 
     QualType UDeclTy = UDecl->getType();
     if (!UDeclTy->isDependentType()) {
-      QualType NewType = Context.mergeFunctionTypes(
+      QualType NewType = getASTContext().mergeFunctionTypes(
           FType, UDeclTy, /* OfBlockPointer */ false,
           /* Unqualified */ false, /* AllowCXX */ true);
       if (NewType.isNull())
@@ -7425,7 +7454,7 @@ void Sema::ActOnStartOfFunctionDefinitionInOpenMPDeclareVariantScope(
   // If no base was found we create a declaration that we use as base.
   if (Bases.empty() && UseImplicitBase) {
     D.setFunctionDefinitionKind(FunctionDefinitionKind::Declaration);
-    Decl *BaseD = HandleDeclarator(S, D, TemplateParamLists);
+    Decl *BaseD = SemaRef.HandleDeclarator(S, D, TemplateParamLists);
     BaseD->setImplicit(true);
     if (auto *BaseTemplD = dyn_cast<FunctionTemplateDecl>(BaseD))
       Bases.push_back(BaseTemplD->getTemplatedDecl());
@@ -7437,18 +7466,18 @@ void Sema::ActOnStartOfFunctionDefinitionInOpenMPDeclareVariantScope(
   MangledName += D.getIdentifier()->getName();
   MangledName += getOpenMPVariantManglingSeparatorStr();
   MangledName += DVScope.NameSuffix;
-  IdentifierInfo &VariantII = Context.Idents.get(MangledName);
+  IdentifierInfo &VariantII = getASTContext().Idents.get(MangledName);
 
   VariantII.setMangledOpenMPVariantName(true);
   D.SetIdentifier(&VariantII, D.getBeginLoc());
 }
 
-void Sema::ActOnFinishedFunctionDefinitionInOpenMPDeclareVariantScope(
+void SemaOpenMP::ActOnFinishedFunctionDefinitionInOpenMPDeclareVariantScope(
     Decl *D, SmallVectorImpl<FunctionDecl *> &Bases) {
   // Do not mark function as is used to prevent its emission if this is the
   // only place where it is used.
   EnterExpressionEvaluationContext Unevaluated(
-      *this, Sema::ExpressionEvaluationContext::Unevaluated);
+      SemaRef, Sema::ExpressionEvaluationContext::Unevaluated);
 
   FunctionDecl *FD = nullptr;
   if (auto *UTemplDecl = dyn_cast<FunctionTemplateDecl>(D))
@@ -7456,14 +7485,14 @@ void Sema::ActOnFinishedFunctionDefinitionInOpenMPDeclareVariantScope(
   else
     FD = cast<FunctionDecl>(D);
   auto *VariantFuncRef = DeclRefExpr::Create(
-      Context, NestedNameSpecifierLoc(), SourceLocation(), FD,
+      getASTContext(), NestedNameSpecifierLoc(), SourceLocation(), FD,
       /* RefersToEnclosingVariableOrCapture */ false,
       /* NameLoc */ FD->getLocation(), FD->getType(),
       ExprValueKind::VK_PRValue);
 
   OMPDeclareVariantScope &DVScope = OMPDeclareVariantScopes.back();
   auto *OMPDeclareVariantA = OMPDeclareVariantAttr::CreateImplicit(
-      Context, VariantFuncRef, DVScope.TI,
+      getASTContext(), VariantFuncRef, DVScope.TI,
       /*NothingArgs=*/nullptr, /*NothingArgsSize=*/0,
       /*NeedDevicePtrArgs=*/nullptr, /*NeedDevicePtrArgsSize=*/0,
       /*AppendArgs=*/nullptr, /*AppendArgsSize=*/0);
@@ -7471,10 +7500,11 @@ void Sema::ActOnFinishedFunctionDefinitionInOpenMPDeclareVariantScope(
     BaseFD->addAttr(OMPDeclareVariantA);
 }
 
-ExprResult Sema::ActOnOpenMPCall(ExprResult Call, Scope *Scope,
-                                 SourceLocation LParenLoc,
-                                 MultiExprArg ArgExprs,
-                                 SourceLocation RParenLoc, Expr *ExecConfig) {
+ExprResult SemaOpenMP::ActOnOpenMPCall(ExprResult Call, Scope *Scope,
+                                       SourceLocation LParenLoc,
+                                       MultiExprArg ArgExprs,
+                                       SourceLocation RParenLoc,
+                                       Expr *ExecConfig) {
   // The common case is a regular call we do not want to specialize at all. Try
   // to make that case fast by bailing early.
   CallExpr *CE = dyn_cast<CallExpr>(Call.get());
@@ -7485,7 +7515,7 @@ ExprResult Sema::ActOnOpenMPCall(ExprResult Call, Scope *Scope,
   if (!CalleeFnDecl)
     return Call;
 
-  if (LangOpts.OpenMP >= 51 && CalleeFnDecl->getIdentifier() &&
+  if (getLangOpts().OpenMP >= 51 && CalleeFnDecl->getIdentifier() &&
       CalleeFnDecl->getName().starts_with_insensitive("omp_")) {
     // checking for any calls inside an Order region
     if (Scope && Scope->isOpenMPOrderClauseScope())
@@ -7504,7 +7534,8 @@ ExprResult Sema::ActOnOpenMPCall(ExprResult Call, Scope *Scope,
         << ISATrait;
   };
   TargetOMPContext OMPCtx(Context, std::move(DiagUnknownTrait),
-                          getCurFunctionDecl(), DSAStack->getConstructTraits());
+                          SemaRef.getCurFunctionDecl(),
+                          DSAStack->getConstructTraits());
 
   QualType CalleeFnType = CalleeFnDecl->getType();
 
@@ -7549,7 +7580,7 @@ ExprResult Sema::ActOnOpenMPCall(ExprResult Call, Scope *Scope,
       // different type than the base function. This is intended and OK but if
       // we cannot create a call the difference is not in the "implementation
       // defined range" we allow.
-      Sema::TentativeAnalysisScope Trap(*this);
+      Sema::TentativeAnalysisScope Trap(SemaRef);
 
       if (auto *SpecializedMethod = dyn_cast<CXXMethodDecl>(BestDecl)) {
         auto *MemberCall = dyn_cast<CXXMemberCallExpr>(CE);
@@ -7558,12 +7589,12 @@ ExprResult Sema::ActOnOpenMPCall(ExprResult Call, Scope *Scope,
             /* IsArrow */ false, SpecializedMethod, Context.BoundMemberTy,
             MemberCall->getValueKind(), MemberCall->getObjectKind());
       }
-      NewCall = BuildCallExpr(Scope, BestExpr, LParenLoc, ArgExprs, RParenLoc,
-                              ExecConfig);
+      NewCall = SemaRef.BuildCallExpr(Scope, BestExpr, LParenLoc, ArgExprs,
+                                      RParenLoc, ExecConfig);
       if (NewCall.isUsable()) {
         if (CallExpr *NCE = dyn_cast<CallExpr>(NewCall.get())) {
           FunctionDecl *NewCalleeFnDecl = NCE->getDirectCallee();
-          QualType NewType = Context.mergeFunctionTypes(
+          QualType NewType = getASTContext().mergeFunctionTypes(
               CalleeFnType, NewCalleeFnDecl->getType(),
               /* OfBlockPointer */ false,
               /* Unqualified */ false, /* AllowCXX */ true);
@@ -7581,14 +7612,16 @@ ExprResult Sema::ActOnOpenMPCall(ExprResult Call, Scope *Scope,
 
   if (!NewCall.isUsable())
     return Call;
-  return PseudoObjectExpr::Create(Context, CE, {NewCall.get()}, 0);
+  return PseudoObjectExpr::Create(getASTContext(), CE, {NewCall.get()}, 0);
 }
 
 std::optional<std::pair<FunctionDecl *, Expr *>>
-Sema::checkOpenMPDeclareVariantFunction(Sema::DeclGroupPtrTy DG,
-                                        Expr *VariantRef, OMPTraitInfo &TI,
-                                        unsigned NumAppendArgs,
-                                        SourceRange SR) {
+SemaOpenMP::checkOpenMPDeclareVariantFunction(SemaOpenMP::DeclGroupPtrTy DG,
+                                              Expr *VariantRef,
+                                              OMPTraitInfo &TI,
+                                              unsigned NumAppendArgs,
+                                              SourceRange SR) {
+  ASTContext &Context = getASTContext();
   if (!DG || DG.get().isNull())
     return std::nullopt;
 
@@ -7631,7 +7664,7 @@ Sema::checkOpenMPDeclareVariantFunction(Sema::DeclGroupPtrTy DG,
   // Check if the function was emitted already.
   const FunctionDecl *Definition;
   if (!FD->isThisDeclarationADefinition() && FD->isDefined(Definition) &&
-      (LangOpts.EmitAllDecls || Context.DeclMustBeEmitted(Definition)))
+      (getLangOpts().EmitAllDecls || Context.DeclMustBeEmitted(Definition)))
     Diag(SR.getBegin(), diag::warn_omp_declare_variant_after_emitted)
         << FD->getLocation();
 
@@ -7654,7 +7687,7 @@ Sema::checkOpenMPDeclareVariantFunction(Sema::DeclGroupPtrTy DG,
   // Deal with non-constant score and user condition expressions.
   auto HandleNonConstantScoresAndConditions = [this](Expr *&E,
                                                      bool IsScore) -> bool {
-    if (!E || E->isIntegerConstantExpr(Context))
+    if (!E || E->isIntegerConstantExpr(getASTContext()))
       return false;
 
     if (IsScore) {
@@ -7686,9 +7719,9 @@ Sema::checkOpenMPDeclareVariantFunction(Sema::DeclGroupPtrTy DG,
     // Adjust the function type to account for an extra omp_interop_t for each
     // specified in the append_args clause.
     const TypeDecl *TD = nullptr;
-    LookupResult Result(*this, &Context.Idents.get("omp_interop_t"),
+    LookupResult Result(SemaRef, &Context.Idents.get("omp_interop_t"),
                         SR.getBegin(), Sema::LookupOrdinaryName);
-    if (LookupName(Result, getCurScope())) {
+    if (SemaRef.LookupName(Result, SemaRef.getCurScope())) {
       NamedDecl *ND = Result.getFoundDecl();
       TD = dyn_cast_or_null<TypeDecl>(ND);
     }
@@ -7711,7 +7744,7 @@ Sema::checkOpenMPDeclareVariantFunction(Sema::DeclGroupPtrTy DG,
   // Convert VariantRef expression to the type of the original function to
   // resolve possible conflicts.
   ExprResult VariantRefCast = VariantRef;
-  if (LangOpts.CPlusPlus) {
+  if (getLangOpts().CPlusPlus) {
     QualType FnPtrType;
     auto *Method = dyn_cast<CXXMethodDecl>(FD);
     if (Method && !Method->isStatic()) {
@@ -7722,9 +7755,9 @@ Sema::checkOpenMPDeclareVariantFunction(Sema::DeclGroupPtrTy DG,
       {
         // Build adrr_of unary op to correctly handle type checks for member
         // functions.
-        Sema::TentativeAnalysisScope Trap(*this);
-        ER = CreateBuiltinUnaryOp(VariantRef->getBeginLoc(), UO_AddrOf,
-                                  VariantRef);
+        Sema::TentativeAnalysisScope Trap(SemaRef);
+        ER = SemaRef.CreateBuiltinUnaryOp(VariantRef->getBeginLoc(), UO_AddrOf,
+                                          VariantRef);
       }
       if (!ER.isUsable()) {
         Diag(VariantRef->getExprLoc(), diag::err_omp_function_expected)
@@ -7737,9 +7770,9 @@ Sema::checkOpenMPDeclareVariantFunction(Sema::DeclGroupPtrTy DG,
     }
     QualType VarianPtrType = Context.getPointerType(VariantRef->getType());
     if (VarianPtrType.getUnqualifiedType() != FnPtrType.getUnqualifiedType()) {
-      ImplicitConversionSequence ICS = TryImplicitConversion(
+      ImplicitConversionSequence ICS = SemaRef.TryImplicitConversion(
           VariantRef, FnPtrType.getUnqualifiedType(),
-          /*SuppressUserConversions=*/false, AllowedExplicit::None,
+          /*SuppressUserConversions=*/false, Sema::AllowedExplicit::None,
           /*InOverloadResolution=*/false,
           /*CStyle=*/false,
           /*AllowObjCWritebackConversion=*/false);
@@ -7751,8 +7784,8 @@ Sema::checkOpenMPDeclareVariantFunction(Sema::DeclGroupPtrTy DG,
             << (NumAppendArgs ? 1 : 0) << VariantRef->getSourceRange();
         return std::nullopt;
       }
-      VariantRefCast = PerformImplicitConversion(
-          VariantRef, FnPtrType.getUnqualifiedType(), AA_Converting);
+      VariantRefCast = SemaRef.PerformImplicitConversion(
+          VariantRef, FnPtrType.getUnqualifiedType(), Sema::AA_Converting);
       if (!VariantRefCast.isUsable())
         return std::nullopt;
     }
@@ -7765,7 +7798,7 @@ Sema::checkOpenMPDeclareVariantFunction(Sema::DeclGroupPtrTy DG,
     }
   }
 
-  ExprResult ER = CheckPlaceholderExpr(VariantRefCast.get());
+  ExprResult ER = SemaRef.CheckPlaceholderExpr(VariantRefCast.get());
   if (!ER.isUsable() ||
       !ER.get()->IgnoreParenImpCasts()->getType()->isFunctionType()) {
     Diag(VariantRef->getExprLoc(), diag::err_omp_function_expected)
@@ -7795,7 +7828,7 @@ Sema::checkOpenMPDeclareVariantFunction(Sema::DeclGroupPtrTy DG,
   }
 
   // Check if function types are compatible in C.
-  if (!LangOpts.CPlusPlus) {
+  if (!getLangOpts().CPlusPlus) {
     QualType NewType =
         Context.mergeFunctionTypes(AdjustedFnType, NewFD->getType());
     if (NewType.isNull()) {
@@ -7807,9 +7840,9 @@ Sema::checkOpenMPDeclareVariantFunction(Sema::DeclGroupPtrTy DG,
     }
     if (NewType->isFunctionProtoType()) {
       if (FD->getType()->isFunctionNoProtoType())
-        setPrototype(*this, FD, NewFD, NewType);
+        setPrototype(SemaRef, FD, NewFD, NewType);
       else if (NewFD->getType()->isFunctionNoProtoType())
-        setPrototype(*this, NewFD, FD, NewType);
+        setPrototype(SemaRef, NewFD, FD, NewType);
     }
   }
 
@@ -7872,15 +7905,15 @@ Sema::checkOpenMPDeclareVariantFunction(Sema::DeclGroupPtrTy DG,
   }
 
   // Check general compatibility.
-  if (areMultiversionVariantFunctionsCompatible(
+  if (SemaRef.areMultiversionVariantFunctionsCompatible(
           FD, NewFD, PartialDiagnostic::NullDiagnostic(),
           PartialDiagnosticAt(SourceLocation(),
                               PartialDiagnostic::NullDiagnostic()),
           PartialDiagnosticAt(
               VariantRef->getExprLoc(),
-              PDiag(diag::err_omp_declare_variant_doesnt_support)),
+              SemaRef.PDiag(diag::err_omp_declare_variant_doesnt_support)),
           PartialDiagnosticAt(VariantRef->getExprLoc(),
-                              PDiag(diag::err_omp_declare_variant_diff)
+                              SemaRef.PDiag(diag::err_omp_declare_variant_diff)
                                   << FD->getLocation()),
           /*TemplatesSupported=*/true, /*ConstexprSupported=*/false,
           /*CLinkageMayDiffer=*/true))
@@ -7888,7 +7921,7 @@ Sema::checkOpenMPDeclareVariantFunction(Sema::DeclGroupPtrTy DG,
   return std::make_pair(FD, cast<Expr>(DRE));
 }
 
-void Sema::ActOnOpenMPDeclareVariantDirective(
+void SemaOpenMP::ActOnOpenMPDeclareVariantDirective(
     FunctionDecl *FD, Expr *VariantRef, OMPTraitInfo &TI,
     ArrayRef<Expr *> AdjustArgsNothing,
     ArrayRef<Expr *> AdjustArgsNeedDevicePtr,
@@ -7906,7 +7939,7 @@ void Sema::ActOnOpenMPDeclareVariantDirective(
 
   if (!AllAdjustArgs.empty() || !AppendArgs.empty()) {
     VariantMatchInfo VMI;
-    TI.getAsVariantMatchInfo(Context, VMI);
+    TI.getAsVariantMatchInfo(getASTContext(), VMI);
     if (!llvm::is_contained(
             VMI.ConstructTraits,
             llvm::omp::TraitProperty::construct_dispatch_dispatch)) {
@@ -7949,18 +7982,18 @@ void Sema::ActOnOpenMPDeclareVariantDirective(
   }
 
   auto *NewAttr = OMPDeclareVariantAttr::CreateImplicit(
-      Context, VariantRef, &TI, const_cast<Expr **>(AdjustArgsNothing.data()),
-      AdjustArgsNothing.size(),
+      getASTContext(), VariantRef, &TI,
+      const_cast<Expr **>(AdjustArgsNothing.data()), AdjustArgsNothing.size(),
       const_cast<Expr **>(AdjustArgsNeedDevicePtr.data()),
       AdjustArgsNeedDevicePtr.size(),
       const_cast<OMPInteropInfo *>(AppendArgs.data()), AppendArgs.size(), SR);
   FD->addAttr(NewAttr);
 }
 
-StmtResult Sema::ActOnOpenMPParallelDirective(ArrayRef<OMPClause *> Clauses,
-                                              Stmt *AStmt,
-                                              SourceLocation StartLoc,
-                                              SourceLocation EndLoc) {
+StmtResult
+SemaOpenMP::ActOnOpenMPParallelDirective(ArrayRef<OMPClause *> Clauses,
+                                         Stmt *AStmt, SourceLocation StartLoc,
+                                         SourceLocation EndLoc) {
   if (!AStmt)
     return StmtError();
 
@@ -7972,11 +8005,11 @@ StmtResult Sema::ActOnOpenMPParallelDirective(ArrayRef<OMPClause *> Clauses,
   // longjmp() and throw() must not violate the entry/exit criteria.
   CS->getCapturedDecl()->setNothrow();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
-  return OMPParallelDirective::Create(Context, StartLoc, EndLoc, Clauses, AStmt,
-                                      DSAStack->getTaskgroupReductionRef(),
-                                      DSAStack->isCancelRegion());
+  return OMPParallelDirective::Create(
+      getASTContext(), StartLoc, EndLoc, Clauses, AStmt,
+      DSAStack->getTaskgroupReductionRef(), DSAStack->isCancelRegion());
 }
 
 namespace {
@@ -8226,7 +8259,7 @@ bool OpenMPIterationSpaceChecker::setStep(Expr *NewStep, bool Subtract) {
   if (!NewStep->isValueDependent()) {
     // Check that the step is integer expression.
     SourceLocation StepLoc = NewStep->getBeginLoc();
-    ExprResult Val = SemaRef.PerformOpenMPImplicitIntegerConversion(
+    ExprResult Val = SemaRef.OpenMP().PerformOpenMPImplicitIntegerConversion(
         StepLoc, getExprAsWritten(NewStep));
     if (Val.isInvalid())
       return true;
@@ -9248,7 +9281,7 @@ DeclRefExpr *OpenMPIterationSpaceChecker::buildCounterVar(
     DSAStackTy &DSA) const {
   auto *VD = dyn_cast<VarDecl>(LCDecl);
   if (!VD) {
-    VD = SemaRef.isOpenMPCapturedDecl(LCDecl);
+    VD = SemaRef.OpenMP().isOpenMPCapturedDecl(LCDecl);
     DeclRefExpr *Ref = buildDeclRefExpr(
         SemaRef, VD, VD->getType().getNonReferenceType(), DefaultLoc);
     const DSAStackTy::DSAVarData Data =
@@ -9321,14 +9354,15 @@ Expr *OpenMPIterationSpaceChecker::buildOrderedLoopData(
 }
 } // namespace
 
-void Sema::ActOnOpenMPLoopInitialization(SourceLocation ForLoc, Stmt *Init) {
+void SemaOpenMP::ActOnOpenMPLoopInitialization(SourceLocation ForLoc,
+                                               Stmt *Init) {
   assert(getLangOpts().OpenMP && "OpenMP is not active.");
   assert(Init && "Expected loop in canonical form.");
   unsigned AssociatedLoops = DSAStack->getAssociatedLoops();
   if (AssociatedLoops > 0 &&
       isOpenMPLoopDirective(DSAStack->getCurrentDirective())) {
     DSAStack->loopStart();
-    OpenMPIterationSpaceChecker ISC(*this, /*SupportsNonRectangular=*/true,
+    OpenMPIterationSpaceChecker ISC(SemaRef, /*SupportsNonRectangular=*/true,
                                     *DSAStack, ForLoc);
     if (!ISC.checkAndSetInit(Init, /*EmitDiags=*/false)) {
       if (ValueDecl *D = ISC.getLoopDecl()) {
@@ -9338,7 +9372,7 @@ void Sema::ActOnOpenMPLoopInitialization(SourceLocation ForLoc, Stmt *Init) {
           if (VarDecl *Private = isOpenMPCapturedDecl(D)) {
             VD = Private;
           } else {
-            PrivateRef = buildCapture(*this, D, ISC.getLoopDeclRefExpr(),
+            PrivateRef = buildCapture(SemaRef, D, ISC.getLoopDeclRefExpr(),
                                       /*WithInit=*/false);
             VD = cast<VarDecl>(PrivateRef->getDecl());
           }
@@ -9348,10 +9382,10 @@ void Sema::ActOnOpenMPLoopInitialization(SourceLocation ForLoc, Stmt *Init) {
         if (LD != D->getCanonicalDecl()) {
           DSAStack->resetPossibleLoopCounter();
           if (auto *Var = dyn_cast_or_null<VarDecl>(LD))
-            MarkDeclarationsReferencedInExpr(
-                buildDeclRefExpr(*this, const_cast<VarDecl *>(Var),
-                                 Var->getType().getNonLValueExprType(Context),
-                                 ForLoc, /*RefersToCapture=*/true));
+            SemaRef.MarkDeclarationsReferencedInExpr(buildDeclRefExpr(
+                SemaRef, const_cast<VarDecl *>(Var),
+                Var->getType().getNonLValueExprType(getASTContext()), ForLoc,
+                /*RefersToCapture=*/true));
         }
         OpenMPDirectiveKind DKind = DSAStack->getCurrentDirective();
         // OpenMP [2.14.1.1, Data-sharing Attribute Rules for Variables
@@ -9372,8 +9406,8 @@ void Sema::ActOnOpenMPLoopInitialization(SourceLocation ForLoc, Stmt *Init) {
                 : OMPC_private;
         if (((isOpenMPSimdDirective(DKind) && DVar.CKind != OMPC_unknown &&
               DVar.CKind != PredeterminedCKind && DVar.RefExpr &&
-              (LangOpts.OpenMP <= 45 || (DVar.CKind != OMPC_lastprivate &&
-                                         DVar.CKind != OMPC_private))) ||
+              (getLangOpts().OpenMP <= 45 || (DVar.CKind != OMPC_lastprivate &&
+                                              DVar.CKind != OMPC_private))) ||
              ((isOpenMPWorksharingDirective(DKind) || DKind == OMPD_taskloop ||
                DKind == OMPD_master_taskloop || DKind == OMPD_masked_taskloop ||
                DKind == OMPD_parallel_master_taskloop ||
@@ -9388,7 +9422,7 @@ void Sema::ActOnOpenMPLoopInitialization(SourceLocation ForLoc, Stmt *Init) {
               << getOpenMPClauseName(PredeterminedCKind);
           if (DVar.RefExpr == nullptr)
             DVar.CKind = PredeterminedCKind;
-          reportOriginalDsa(*this, DSAStack, D, DVar,
+          reportOriginalDsa(SemaRef, DSAStack, D, DVar,
                             /*IsLoopIterVar=*/true);
         } else if (LoopDeclRefExpr) {
           // Make the loop iteration variable private (for worksharing
@@ -9428,7 +9462,7 @@ static bool checkOpenMPIterationSpace(
     unsigned CurrentNestedLoopCount, unsigned NestedLoopCount,
     unsigned TotalNestedLoopCount, Expr *CollapseLoopCountExpr,
     Expr *OrderedLoopCountExpr,
-    Sema::VarsWithInheritedDSAType &VarsWithImplicitDSA,
+    SemaOpenMP::VarsWithInheritedDSAType &VarsWithImplicitDSA,
     llvm::MutableArrayRef<LoopIterationSpace> ResultIterSpaces,
     llvm::MapVector<const Expr *, DeclRefExpr *> &Captures) {
   bool SupportsNonRectangular = !isOpenMPLoopTransformationDirective(DKind);
@@ -9817,7 +9851,7 @@ static unsigned
 checkOpenMPLoop(OpenMPDirectiveKind DKind, Expr *CollapseLoopCountExpr,
                 Expr *OrderedLoopCountExpr, Stmt *AStmt, Sema &SemaRef,
                 DSAStackTy &DSA,
-                Sema::VarsWithInheritedDSAType &VarsWithImplicitDSA,
+                SemaOpenMP::VarsWithInheritedDSAType &VarsWithImplicitDSA,
                 OMPLoopBasedDirective::HelperExprs &Built) {
   unsigned NestedLoopCount = 1;
   bool SupportsNonPerfectlyNested = (SemaRef.LangOpts.OpenMP >= 50) &&
@@ -10566,7 +10600,8 @@ static bool checkGenericLoopLastprivate(Sema &S, ArrayRef<OMPClause *> Clauses,
                                         OpenMPDirectiveKind K,
                                         DSAStackTy *Stack);
 
-bool Sema::checkLastPrivateForMappedDirectives(ArrayRef<OMPClause *> Clauses) {
+bool SemaOpenMP::checkLastPrivateForMappedDirectives(
+    ArrayRef<OMPClause *> Clauses) {
 
   // Check for syntax of lastprivate
   // Param of the lastprivate have different meanings in the mapped directives
@@ -10574,16 +10609,15 @@ bool Sema::checkLastPrivateForMappedDirectives(ArrayRef<OMPClause *> Clauses) {
   //      "omp for"  lastprivate vars must be shared
   if (getLangOpts().OpenMP >= 50 &&
       DSAStack->getMappedDirective() == OMPD_loop &&
-      checkGenericLoopLastprivate(*this, Clauses, OMPD_loop, DSAStack)) {
+      checkGenericLoopLastprivate(SemaRef, Clauses, OMPD_loop, DSAStack)) {
     return false;
   }
   return true;
 }
 
-StmtResult
-Sema::ActOnOpenMPSimdDirective(ArrayRef<OMPClause *> Clauses, Stmt *AStmt,
-                               SourceLocation StartLoc, SourceLocation EndLoc,
-                               VarsWithInheritedDSAType &VarsWithImplicitDSA) {
+StmtResult SemaOpenMP::ActOnOpenMPSimdDirective(
+    ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+    SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
     return StmtError();
 
@@ -10596,38 +10630,37 @@ Sema::ActOnOpenMPSimdDirective(ArrayRef<OMPClause *> Clauses, Stmt *AStmt,
   // define the nested loops number.
   unsigned NestedLoopCount = checkOpenMPLoop(
       OMPD_simd, getCollapseNumberExpr(Clauses), getOrderedNumberExpr(Clauses),
-      AStmt, *this, *DSAStack, VarsWithImplicitDSA, B);
+      AStmt, SemaRef, *DSAStack, VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp simd loop exprs were not built");
 
-  if (!CurContext->isDependentContext()) {
+  if (!SemaRef.CurContext->isDependentContext()) {
     // Finalize the clauses that need pre-built expressions for CodeGen.
     for (OMPClause *C : Clauses) {
       if (auto *LC = dyn_cast<OMPLinearClause>(C))
         if (FinishOpenMPLinearClause(*LC, cast<DeclRefExpr>(B.IterationVarRef),
-                                     B.NumIterations, *this, CurScope,
-                                     DSAStack))
+                                     B.NumIterations, SemaRef,
+                                     SemaRef.getCurScope(), DSAStack))
           return StmtError();
     }
   }
 
-  if (checkSimdlenSafelenSpecified(*this, Clauses))
+  if (checkSimdlenSafelenSpecified(SemaRef, Clauses))
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
   auto *SimdDirective = OMPSimdDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
       DSAStack->getMappedDirective());
   return SimdDirective;
 }
 
-StmtResult
-Sema::ActOnOpenMPForDirective(ArrayRef<OMPClause *> Clauses, Stmt *AStmt,
-                              SourceLocation StartLoc, SourceLocation EndLoc,
-                              VarsWithInheritedDSAType &VarsWithImplicitDSA) {
+StmtResult SemaOpenMP::ActOnOpenMPForDirective(
+    ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+    SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
     return StmtError();
 
@@ -10640,32 +10673,32 @@ Sema::ActOnOpenMPForDirective(ArrayRef<OMPClause *> Clauses, Stmt *AStmt,
   // define the nested loops number.
   unsigned NestedLoopCount = checkOpenMPLoop(
       OMPD_for, getCollapseNumberExpr(Clauses), getOrderedNumberExpr(Clauses),
-      AStmt, *this, *DSAStack, VarsWithImplicitDSA, B);
+      AStmt, SemaRef, *DSAStack, VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp for loop exprs were not built");
 
-  if (!CurContext->isDependentContext()) {
+  if (!SemaRef.CurContext->isDependentContext()) {
     // Finalize the clauses that need pre-built expressions for CodeGen.
     for (OMPClause *C : Clauses) {
       if (auto *LC = dyn_cast<OMPLinearClause>(C))
         if (FinishOpenMPLinearClause(*LC, cast<DeclRefExpr>(B.IterationVarRef),
-                                     B.NumIterations, *this, CurScope,
-                                     DSAStack))
+                                     B.NumIterations, SemaRef,
+                                     SemaRef.getCurScope(), DSAStack))
           return StmtError();
     }
   }
 
   auto *ForDirective = OMPForDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
       DSAStack->getTaskgroupReductionRef(), DSAStack->isCancelRegion(),
       DSAStack->getMappedDirective());
   return ForDirective;
 }
 
-StmtResult Sema::ActOnOpenMPForSimdDirective(
+StmtResult SemaOpenMP::ActOnOpenMPForSimdDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -10677,37 +10710,37 @@ StmtResult Sema::ActOnOpenMPForSimdDirective(
   // define the nested loops number.
   unsigned NestedLoopCount =
       checkOpenMPLoop(OMPD_for_simd, getCollapseNumberExpr(Clauses),
-                      getOrderedNumberExpr(Clauses), AStmt, *this, *DSAStack,
+                      getOrderedNumberExpr(Clauses), AStmt, SemaRef, *DSAStack,
                       VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp for simd loop exprs were not built");
 
-  if (!CurContext->isDependentContext()) {
+  if (!SemaRef.CurContext->isDependentContext()) {
     // Finalize the clauses that need pre-built expressions for CodeGen.
     for (OMPClause *C : Clauses) {
       if (auto *LC = dyn_cast<OMPLinearClause>(C))
         if (FinishOpenMPLinearClause(*LC, cast<DeclRefExpr>(B.IterationVarRef),
-                                     B.NumIterations, *this, CurScope,
-                                     DSAStack))
+                                     B.NumIterations, SemaRef,
+                                     SemaRef.getCurScope(), DSAStack))
           return StmtError();
     }
   }
 
-  if (checkSimdlenSafelenSpecified(*this, Clauses))
+  if (checkSimdlenSafelenSpecified(SemaRef, Clauses))
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
-  return OMPForSimdDirective::Create(Context, StartLoc, EndLoc, NestedLoopCount,
-                                     Clauses, AStmt, B);
+  SemaRef.setFunctionHasBranchProtectedScope();
+  return OMPForSimdDirective::Create(getASTContext(), StartLoc, EndLoc,
+                                     NestedLoopCount, Clauses, AStmt, B);
 }
 
-StmtResult Sema::ActOnOpenMPSectionsDirective(ArrayRef<OMPClause *> Clauses,
-                                              Stmt *AStmt,
-                                              SourceLocation StartLoc,
-                                              SourceLocation EndLoc) {
+StmtResult
+SemaOpenMP::ActOnOpenMPSectionsDirective(ArrayRef<OMPClause *> Clauses,
+                                         Stmt *AStmt, SourceLocation StartLoc,
+                                         SourceLocation EndLoc) {
   if (!AStmt)
     return StmtError();
 
@@ -10736,23 +10769,23 @@ StmtResult Sema::ActOnOpenMPSectionsDirective(ArrayRef<OMPClause *> Clauses,
     return StmtError();
   }
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
-  return OMPSectionsDirective::Create(Context, StartLoc, EndLoc, Clauses, AStmt,
-                                      DSAStack->getTaskgroupReductionRef(),
-                                      DSAStack->isCancelRegion());
+  return OMPSectionsDirective::Create(
+      getASTContext(), StartLoc, EndLoc, Clauses, AStmt,
+      DSAStack->getTaskgroupReductionRef(), DSAStack->isCancelRegion());
 }
 
-StmtResult Sema::ActOnOpenMPSectionDirective(Stmt *AStmt,
-                                             SourceLocation StartLoc,
-                                             SourceLocation EndLoc) {
+StmtResult SemaOpenMP::ActOnOpenMPSectionDirective(Stmt *AStmt,
+                                                   SourceLocation StartLoc,
+                                                   SourceLocation EndLoc) {
   if (!AStmt)
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
   DSAStack->setParentCancelRegion(DSAStack->isCancelRegion());
 
-  return OMPSectionDirective::Create(Context, StartLoc, EndLoc, AStmt,
+  return OMPSectionDirective::Create(getASTContext(), StartLoc, EndLoc, AStmt,
                                      DSAStack->isCancelRegion());
 }
 
@@ -10764,10 +10797,10 @@ static Expr *getDirectCallExpr(Expr *E) {
   return nullptr;
 }
 
-StmtResult Sema::ActOnOpenMPDispatchDirective(ArrayRef<OMPClause *> Clauses,
-                                              Stmt *AStmt,
-                                              SourceLocation StartLoc,
-                                              SourceLocation EndLoc) {
+StmtResult
+SemaOpenMP::ActOnOpenMPDispatchDirective(ArrayRef<OMPClause *> Clauses,
+                                         Stmt *AStmt, SourceLocation StartLoc,
+                                         SourceLocation EndLoc) {
   if (!AStmt)
     return StmtError();
 
@@ -10780,7 +10813,7 @@ StmtResult Sema::ActOnOpenMPDispatchDirective(ArrayRef<OMPClause *> Clauses,
 
   SourceLocation TargetCallLoc;
 
-  if (!CurContext->isDependentContext()) {
+  if (!SemaRef.CurContext->isDependentContext()) {
     Expr *TargetCall = nullptr;
 
     auto *E = dyn_cast<Expr>(S);
@@ -10808,10 +10841,10 @@ StmtResult Sema::ActOnOpenMPDispatchDirective(ArrayRef<OMPClause *> Clauses,
     TargetCallLoc = TargetCall->getExprLoc();
   }
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
-  return OMPDispatchDirective::Create(Context, StartLoc, EndLoc, Clauses, AStmt,
-                                      TargetCallLoc);
+  return OMPDispatchDirective::Create(getASTContext(), StartLoc, EndLoc,
+                                      Clauses, AStmt, TargetCallLoc);
 }
 
 static bool checkGenericLoopLastprivate(Sema &S, ArrayRef<OMPClause *> Clauses,
@@ -10839,7 +10872,7 @@ static bool checkGenericLoopLastprivate(Sema &S, ArrayRef<OMPClause *> Clauses,
   return ErrorFound;
 }
 
-StmtResult Sema::ActOnOpenMPGenericLoopDirective(
+StmtResult SemaOpenMP::ActOnOpenMPGenericLoopDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -10848,7 +10881,7 @@ StmtResult Sema::ActOnOpenMPGenericLoopDirective(
   // OpenMP 5.1 [2.11.7, loop construct, Restrictions]
   // A list item may not appear in a lastprivate clause unless it is the
   // loop iteration variable of a loop that is associated with the construct.
-  if (checkGenericLoopLastprivate(*this, Clauses, OMPD_loop, DSAStack))
+  if (checkGenericLoopLastprivate(SemaRef, Clauses, OMPD_loop, DSAStack))
     return StmtError();
 
   auto *CS = cast<CapturedStmt>(AStmt);
@@ -10863,19 +10896,19 @@ StmtResult Sema::ActOnOpenMPGenericLoopDirective(
   // In presence of clause 'collapse', it will define the nested loops number.
   unsigned NestedLoopCount = checkOpenMPLoop(
       OMPD_loop, getCollapseNumberExpr(Clauses), getOrderedNumberExpr(Clauses),
-      AStmt, *this, *DSAStack, VarsWithImplicitDSA, B);
+      AStmt, SemaRef, *DSAStack, VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp loop exprs were not built");
 
-  setFunctionHasBranchProtectedScope();
-  return OMPGenericLoopDirective::Create(Context, StartLoc, EndLoc,
+  SemaRef.setFunctionHasBranchProtectedScope();
+  return OMPGenericLoopDirective::Create(getASTContext(), StartLoc, EndLoc,
                                          NestedLoopCount, Clauses, AStmt, B);
 }
 
-StmtResult Sema::ActOnOpenMPTeamsGenericLoopDirective(
+StmtResult SemaOpenMP::ActOnOpenMPTeamsGenericLoopDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -10884,7 +10917,7 @@ StmtResult Sema::ActOnOpenMPTeamsGenericLoopDirective(
   // OpenMP 5.1 [2.11.7, loop construct, Restrictions]
   // A list item may not appear in a lastprivate clause unless it is the
   // loop iteration variable of a loop that is associated with the construct.
-  if (checkGenericLoopLastprivate(*this, Clauses, OMPD_teams_loop, DSAStack))
+  if (checkGenericLoopLastprivate(SemaRef, Clauses, OMPD_teams_loop, DSAStack))
     return StmtError();
 
   auto *CS = cast<CapturedStmt>(AStmt);
@@ -10909,22 +10942,22 @@ StmtResult Sema::ActOnOpenMPTeamsGenericLoopDirective(
   // In presence of clause 'collapse', it will define the nested loops number.
   unsigned NestedLoopCount =
       checkOpenMPLoop(OMPD_teams_loop, getCollapseNumberExpr(Clauses),
-                      /*OrderedLoopCountExpr=*/nullptr, CS, *this, *DSAStack,
+                      /*OrderedLoopCountExpr=*/nullptr, CS, SemaRef, *DSAStack,
                       VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp loop exprs were not built");
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
   DSAStack->setParentTeamsRegionLoc(StartLoc);
 
   return OMPTeamsGenericLoopDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
 }
 
-StmtResult Sema::ActOnOpenMPTargetTeamsGenericLoopDirective(
+StmtResult SemaOpenMP::ActOnOpenMPTargetTeamsGenericLoopDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -10933,7 +10966,7 @@ StmtResult Sema::ActOnOpenMPTargetTeamsGenericLoopDirective(
   // OpenMP 5.1 [2.11.7, loop construct, Restrictions]
   // A list item may not appear in a lastprivate clause unless it is the
   // loop iteration variable of a loop that is associated with the construct.
-  if (checkGenericLoopLastprivate(*this, Clauses, OMPD_target_teams_loop,
+  if (checkGenericLoopLastprivate(SemaRef, Clauses, OMPD_target_teams_loop,
                                   DSAStack))
     return StmtError();
 
@@ -10959,22 +10992,22 @@ StmtResult Sema::ActOnOpenMPTargetTeamsGenericLoopDirective(
   // In presence of clause 'collapse', it will define the nested loops number.
   unsigned NestedLoopCount =
       checkOpenMPLoop(OMPD_target_teams_loop, getCollapseNumberExpr(Clauses),
-                      /*OrderedLoopCountExpr=*/nullptr, CS, *this, *DSAStack,
+                      /*OrderedLoopCountExpr=*/nullptr, CS, SemaRef, *DSAStack,
                       VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp loop exprs were not built");
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
   return OMPTargetTeamsGenericLoopDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
-      teamsLoopCanBeParallelFor(AStmt, *this));
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
+      teamsLoopCanBeParallelFor(AStmt, SemaRef));
 }
 
-StmtResult Sema::ActOnOpenMPParallelGenericLoopDirective(
+StmtResult SemaOpenMP::ActOnOpenMPParallelGenericLoopDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -10983,7 +11016,8 @@ StmtResult Sema::ActOnOpenMPParallelGenericLoopDirective(
   // OpenMP 5.1 [2.11.7, loop construct, Restrictions]
   // A list item may not appear in a lastprivate clause unless it is the
   // loop iteration variable of a loop that is associated with the construct.
-  if (checkGenericLoopLastprivate(*this, Clauses, OMPD_parallel_loop, DSAStack))
+  if (checkGenericLoopLastprivate(SemaRef, Clauses, OMPD_parallel_loop,
+                                  DSAStack))
     return StmtError();
 
   auto *CS = cast<CapturedStmt>(AStmt);
@@ -11008,21 +11042,21 @@ StmtResult Sema::ActOnOpenMPParallelGenericLoopDirective(
   // In presence of clause 'collapse', it will define the nested loops number.
   unsigned NestedLoopCount =
       checkOpenMPLoop(OMPD_parallel_loop, getCollapseNumberExpr(Clauses),
-                      /*OrderedLoopCountExpr=*/nullptr, CS, *this, *DSAStack,
+                      /*OrderedLoopCountExpr=*/nullptr, CS, SemaRef, *DSAStack,
                       VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp loop exprs were not built");
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
   return OMPParallelGenericLoopDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
 }
 
-StmtResult Sema::ActOnOpenMPTargetParallelGenericLoopDirective(
+StmtResult SemaOpenMP::ActOnOpenMPTargetParallelGenericLoopDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -11031,7 +11065,7 @@ StmtResult Sema::ActOnOpenMPTargetParallelGenericLoopDirective(
   // OpenMP 5.1 [2.11.7, loop construct, Restrictions]
   // A list item may not appear in a lastprivate clause unless it is the
   // loop iteration variable of a loop that is associated with the construct.
-  if (checkGenericLoopLastprivate(*this, Clauses, OMPD_target_parallel_loop,
+  if (checkGenericLoopLastprivate(SemaRef, Clauses, OMPD_target_parallel_loop,
                                   DSAStack))
     return StmtError();
 
@@ -11057,30 +11091,30 @@ StmtResult Sema::ActOnOpenMPTargetParallelGenericLoopDirective(
   // In presence of clause 'collapse', it will define the nested loops number.
   unsigned NestedLoopCount =
       checkOpenMPLoop(OMPD_target_parallel_loop, getCollapseNumberExpr(Clauses),
-                      /*OrderedLoopCountExpr=*/nullptr, CS, *this, *DSAStack,
+                      /*OrderedLoopCountExpr=*/nullptr, CS, SemaRef, *DSAStack,
                       VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp loop exprs were not built");
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
   return OMPTargetParallelGenericLoopDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
 }
 
-StmtResult Sema::ActOnOpenMPSingleDirective(ArrayRef<OMPClause *> Clauses,
-                                            Stmt *AStmt,
-                                            SourceLocation StartLoc,
-                                            SourceLocation EndLoc) {
+StmtResult SemaOpenMP::ActOnOpenMPSingleDirective(ArrayRef<OMPClause *> Clauses,
+                                                  Stmt *AStmt,
+                                                  SourceLocation StartLoc,
+                                                  SourceLocation EndLoc) {
   if (!AStmt)
     return StmtError();
 
   assert(isa<CapturedStmt>(AStmt) && "Captured statement expected");
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
   // OpenMP [2.7.3, single Construct, Restrictions]
   // The copyprivate clause must not be used with the nowait clause.
@@ -11099,33 +11133,35 @@ StmtResult Sema::ActOnOpenMPSingleDirective(ArrayRef<OMPClause *> Clauses,
     }
   }
 
-  return OMPSingleDirective::Create(Context, StartLoc, EndLoc, Clauses, AStmt);
+  return OMPSingleDirective::Create(getASTContext(), StartLoc, EndLoc, Clauses,
+                                    AStmt);
 }
 
-StmtResult Sema::ActOnOpenMPMasterDirective(Stmt *AStmt,
-                                            SourceLocation StartLoc,
-                                            SourceLocation EndLoc) {
+StmtResult SemaOpenMP::ActOnOpenMPMasterDirective(Stmt *AStmt,
+                                                  SourceLocation StartLoc,
+                                                  SourceLocation EndLoc) {
   if (!AStmt)
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
-  return OMPMasterDirective::Create(Context, StartLoc, EndLoc, AStmt);
+  return OMPMasterDirective::Create(getASTContext(), StartLoc, EndLoc, AStmt);
 }
 
-StmtResult Sema::ActOnOpenMPMaskedDirective(ArrayRef<OMPClause *> Clauses,
-                                            Stmt *AStmt,
-                                            SourceLocation StartLoc,
-                                            SourceLocation EndLoc) {
+StmtResult SemaOpenMP::ActOnOpenMPMaskedDirective(ArrayRef<OMPClause *> Clauses,
+                                                  Stmt *AStmt,
+                                                  SourceLocation StartLoc,
+                                                  SourceLocation EndLoc) {
   if (!AStmt)
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
-  return OMPMaskedDirective::Create(Context, StartLoc, EndLoc, Clauses, AStmt);
+  return OMPMaskedDirective::Create(getASTContext(), StartLoc, EndLoc, Clauses,
+                                    AStmt);
 }
 
-StmtResult Sema::ActOnOpenMPCriticalDirective(
+StmtResult SemaOpenMP::ActOnOpenMPCriticalDirective(
     const DeclarationNameInfo &DirName, ArrayRef<OMPClause *> Clauses,
     Stmt *AStmt, SourceLocation StartLoc, SourceLocation EndLoc) {
   if (!AStmt)
@@ -11146,7 +11182,7 @@ StmtResult Sema::ActOnOpenMPCriticalDirective(
           E->isInstantiationDependent()) {
         DependentHint = true;
       } else {
-        Hint = E->EvaluateKnownConstInt(Context);
+        Hint = E->EvaluateKnownConstInt(getASTContext());
         HintLoc = C->getBeginLoc();
       }
     }
@@ -11165,7 +11201,7 @@ StmtResult Sema::ActOnOpenMPCriticalDirective(
       if (const auto *C = Pair.first->getSingleClause<OMPHintClause>()) {
         Diag(C->getBeginLoc(), diag::note_omp_critical_hint_here)
             << 1
-            << toString(C->getHint()->EvaluateKnownConstInt(Context),
+            << toString(C->getHint()->EvaluateKnownConstInt(getASTContext()),
                         /*Radix=*/10, /*Signed=*/false);
       } else {
         Diag(Pair.first->getBeginLoc(), diag::note_omp_critical_no_hint) << 1;
@@ -11173,16 +11209,16 @@ StmtResult Sema::ActOnOpenMPCriticalDirective(
     }
   }
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
-  auto *Dir = OMPCriticalDirective::Create(Context, DirName, StartLoc, EndLoc,
-                                           Clauses, AStmt);
+  auto *Dir = OMPCriticalDirective::Create(getASTContext(), DirName, StartLoc,
+                                           EndLoc, Clauses, AStmt);
   if (!Pair.first && DirName.getName() && !DependentHint)
     DSAStack->addCriticalWithHint(Dir, Hint);
   return Dir;
 }
 
-StmtResult Sema::ActOnOpenMPParallelForDirective(
+StmtResult SemaOpenMP::ActOnOpenMPParallelForDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -11201,32 +11237,32 @@ StmtResult Sema::ActOnOpenMPParallelForDirective(
   // define the nested loops number.
   unsigned NestedLoopCount =
       checkOpenMPLoop(OMPD_parallel_for, getCollapseNumberExpr(Clauses),
-                      getOrderedNumberExpr(Clauses), AStmt, *this, *DSAStack,
+                      getOrderedNumberExpr(Clauses), AStmt, SemaRef, *DSAStack,
                       VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp parallel for loop exprs were not built");
 
-  if (!CurContext->isDependentContext()) {
+  if (!SemaRef.CurContext->isDependentContext()) {
     // Finalize the clauses that need pre-built expressions for CodeGen.
     for (OMPClause *C : Clauses) {
       if (auto *LC = dyn_cast<OMPLinearClause>(C))
         if (FinishOpenMPLinearClause(*LC, cast<DeclRefExpr>(B.IterationVarRef),
-                                     B.NumIterations, *this, CurScope,
-                                     DSAStack))
+                                     B.NumIterations, SemaRef,
+                                     SemaRef.getCurScope(), DSAStack))
           return StmtError();
     }
   }
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
   return OMPParallelForDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
       DSAStack->getTaskgroupReductionRef(), DSAStack->isCancelRegion());
 }
 
-StmtResult Sema::ActOnOpenMPParallelForSimdDirective(
+StmtResult SemaOpenMP::ActOnOpenMPParallelForSimdDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -11245,34 +11281,33 @@ StmtResult Sema::ActOnOpenMPParallelForSimdDirective(
   // define the nested loops number.
   unsigned NestedLoopCount =
       checkOpenMPLoop(OMPD_parallel_for_simd, getCollapseNumberExpr(Clauses),
-                      getOrderedNumberExpr(Clauses), AStmt, *this, *DSAStack,
+                      getOrderedNumberExpr(Clauses), AStmt, SemaRef, *DSAStack,
                       VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  if (!CurContext->isDependentContext()) {
+  if (!SemaRef.CurContext->isDependentContext()) {
     // Finalize the clauses that need pre-built expressions for CodeGen.
     for (OMPClause *C : Clauses) {
       if (auto *LC = dyn_cast<OMPLinearClause>(C))
         if (FinishOpenMPLinearClause(*LC, cast<DeclRefExpr>(B.IterationVarRef),
-                                     B.NumIterations, *this, CurScope,
-                                     DSAStack))
+                                     B.NumIterations, SemaRef,
+                                     SemaRef.getCurScope(), DSAStack))
           return StmtError();
     }
   }
 
-  if (checkSimdlenSafelenSpecified(*this, Clauses))
+  if (checkSimdlenSafelenSpecified(SemaRef, Clauses))
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
   return OMPParallelForSimdDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
 }
 
-StmtResult
-Sema::ActOnOpenMPParallelMasterDirective(ArrayRef<OMPClause *> Clauses,
-                                         Stmt *AStmt, SourceLocation StartLoc,
-                                         SourceLocation EndLoc) {
+StmtResult SemaOpenMP::ActOnOpenMPParallelMasterDirective(
+    ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+    SourceLocation EndLoc) {
   if (!AStmt)
     return StmtError();
 
@@ -11285,17 +11320,16 @@ Sema::ActOnOpenMPParallelMasterDirective(ArrayRef<OMPClause *> Clauses,
   // longjmp() and throw() must not violate the entry/exit criteria.
   CS->getCapturedDecl()->setNothrow();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
   return OMPParallelMasterDirective::Create(
-      Context, StartLoc, EndLoc, Clauses, AStmt,
+      getASTContext(), StartLoc, EndLoc, Clauses, AStmt,
       DSAStack->getTaskgroupReductionRef());
 }
 
-StmtResult
-Sema::ActOnOpenMPParallelMaskedDirective(ArrayRef<OMPClause *> Clauses,
-                                         Stmt *AStmt, SourceLocation StartLoc,
-                                         SourceLocation EndLoc) {
+StmtResult SemaOpenMP::ActOnOpenMPParallelMaskedDirective(
+    ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+    SourceLocation EndLoc) {
   if (!AStmt)
     return StmtError();
 
@@ -11308,17 +11342,16 @@ Sema::ActOnOpenMPParallelMaskedDirective(ArrayRef<OMPClause *> Clauses,
   // longjmp() and throw() must not violate the entry/exit criteria.
   CS->getCapturedDecl()->setNothrow();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
   return OMPParallelMaskedDirective::Create(
-      Context, StartLoc, EndLoc, Clauses, AStmt,
+      getASTContext(), StartLoc, EndLoc, Clauses, AStmt,
       DSAStack->getTaskgroupReductionRef());
 }
 
-StmtResult
-Sema::ActOnOpenMPParallelSectionsDirective(ArrayRef<OMPClause *> Clauses,
-                                           Stmt *AStmt, SourceLocation StartLoc,
-                                           SourceLocation EndLoc) {
+StmtResult SemaOpenMP::ActOnOpenMPParallelSectionsDirective(
+    ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+    SourceLocation EndLoc) {
   if (!AStmt)
     return StmtError();
 
@@ -11348,10 +11381,10 @@ Sema::ActOnOpenMPParallelSectionsDirective(ArrayRef<OMPClause *> Clauses,
     return StmtError();
   }
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
   return OMPParallelSectionsDirective::Create(
-      Context, StartLoc, EndLoc, Clauses, AStmt,
+      getASTContext(), StartLoc, EndLoc, Clauses, AStmt,
       DSAStack->getTaskgroupReductionRef(), DSAStack->isCancelRegion());
 }
 
@@ -11378,16 +11411,17 @@ static bool checkMutuallyExclusiveClauses(
   return ErrorFound;
 }
 
-StmtResult Sema::ActOnOpenMPTaskDirective(ArrayRef<OMPClause *> Clauses,
-                                          Stmt *AStmt, SourceLocation StartLoc,
-                                          SourceLocation EndLoc) {
+StmtResult SemaOpenMP::ActOnOpenMPTaskDirective(ArrayRef<OMPClause *> Clauses,
+                                                Stmt *AStmt,
+                                                SourceLocation StartLoc,
+                                                SourceLocation EndLoc) {
   if (!AStmt)
     return StmtError();
 
   // OpenMP 5.0, 2.10.1 task Construct
   // If a detach clause appears on the directive, then a mergeable clause cannot
   // appear on the same directive.
-  if (checkMutuallyExclusiveClauses(*this, Clauses,
+  if (checkMutuallyExclusiveClauses(SemaRef, Clauses,
                                     {OMPC_detach, OMPC_mergeable}))
     return StmtError();
 
@@ -11399,26 +11433,26 @@ StmtResult Sema::ActOnOpenMPTaskDirective(ArrayRef<OMPClause *> Clauses,
   // longjmp() and throw() must not violate the entry/exit criteria.
   CS->getCapturedDecl()->setNothrow();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
-  return OMPTaskDirective::Create(Context, StartLoc, EndLoc, Clauses, AStmt,
-                                  DSAStack->isCancelRegion());
+  return OMPTaskDirective::Create(getASTContext(), StartLoc, EndLoc, Clauses,
+                                  AStmt, DSAStack->isCancelRegion());
 }
 
-StmtResult Sema::ActOnOpenMPTaskyieldDirective(SourceLocation StartLoc,
-                                               SourceLocation EndLoc) {
-  return OMPTaskyieldDirective::Create(Context, StartLoc, EndLoc);
+StmtResult SemaOpenMP::ActOnOpenMPTaskyieldDirective(SourceLocation StartLoc,
+                                                     SourceLocation EndLoc) {
+  return OMPTaskyieldDirective::Create(getASTContext(), StartLoc, EndLoc);
 }
 
-StmtResult Sema::ActOnOpenMPBarrierDirective(SourceLocation StartLoc,
-                                             SourceLocation EndLoc) {
-  return OMPBarrierDirective::Create(Context, StartLoc, EndLoc);
+StmtResult SemaOpenMP::ActOnOpenMPBarrierDirective(SourceLocation StartLoc,
+                                                   SourceLocation EndLoc) {
+  return OMPBarrierDirective::Create(getASTContext(), StartLoc, EndLoc);
 }
 
-StmtResult Sema::ActOnOpenMPErrorDirective(ArrayRef<OMPClause *> Clauses,
-                                           SourceLocation StartLoc,
-                                           SourceLocation EndLoc,
-                                           bool InExContext) {
+StmtResult SemaOpenMP::ActOnOpenMPErrorDirective(ArrayRef<OMPClause *> Clauses,
+                                                 SourceLocation StartLoc,
+                                                 SourceLocation EndLoc,
+                                                 bool InExContext) {
   const OMPAtClause *AtC =
       OMPExecutableDirective::getSingleClause<OMPAtClause>(Clauses);
 
@@ -11443,12 +11477,13 @@ StmtResult Sema::ActOnOpenMPErrorDirective(ArrayRef<OMPClause *> Clauses,
     if (!SeverityC || SeverityC->getSeverityKind() != OMPC_SEVERITY_warning)
       return StmtError();
   }
-  return OMPErrorDirective::Create(Context, StartLoc, EndLoc, Clauses);
+  return OMPErrorDirective::Create(getASTContext(), StartLoc, EndLoc, Clauses);
 }
 
-StmtResult Sema::ActOnOpenMPTaskwaitDirective(ArrayRef<OMPClause *> Clauses,
-                                              SourceLocation StartLoc,
-                                              SourceLocation EndLoc) {
+StmtResult
+SemaOpenMP::ActOnOpenMPTaskwaitDirective(ArrayRef<OMPClause *> Clauses,
+                                         SourceLocation StartLoc,
+                                         SourceLocation EndLoc) {
   const OMPNowaitClause *NowaitC =
       OMPExecutableDirective::getSingleClause<OMPNowaitClause>(Clauses);
   bool HasDependC =
@@ -11459,28 +11494,29 @@ StmtResult Sema::ActOnOpenMPTaskwaitDirective(ArrayRef<OMPClause *> Clauses,
     return StmtError();
   }
 
-  return OMPTaskwaitDirective::Create(Context, StartLoc, EndLoc, Clauses);
+  return OMPTaskwaitDirective::Create(getASTContext(), StartLoc, EndLoc,
+                                      Clauses);
 }
 
-StmtResult Sema::ActOnOpenMPTaskgroupDirective(ArrayRef<OMPClause *> Clauses,
-                                               Stmt *AStmt,
-                                               SourceLocation StartLoc,
-                                               SourceLocation EndLoc) {
+StmtResult
+SemaOpenMP::ActOnOpenMPTaskgroupDirective(ArrayRef<OMPClause *> Clauses,
+                                          Stmt *AStmt, SourceLocation StartLoc,
+                                          SourceLocation EndLoc) {
   if (!AStmt)
     return StmtError();
 
   assert(isa<CapturedStmt>(AStmt) && "Captured statement expected");
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
-  return OMPTaskgroupDirective::Create(Context, StartLoc, EndLoc, Clauses,
-                                       AStmt,
+  return OMPTaskgroupDirective::Create(getASTContext(), StartLoc, EndLoc,
+                                       Clauses, AStmt,
                                        DSAStack->getTaskgroupReductionRef());
 }
 
-StmtResult Sema::ActOnOpenMPFlushDirective(ArrayRef<OMPClause *> Clauses,
-                                           SourceLocation StartLoc,
-                                           SourceLocation EndLoc) {
+StmtResult SemaOpenMP::ActOnOpenMPFlushDirective(ArrayRef<OMPClause *> Clauses,
+                                                 SourceLocation StartLoc,
+                                                 SourceLocation EndLoc) {
   OMPFlushClause *FC = nullptr;
   OMPClause *OrderClause = nullptr;
   for (OMPClause *C : Clauses) {
@@ -11514,12 +11550,12 @@ StmtResult Sema::ActOnOpenMPFlushDirective(ArrayRef<OMPClause *> Clauses,
         << getOpenMPClauseName(OrderClause->getClauseKind());
     return StmtError();
   }
-  return OMPFlushDirective::Create(Context, StartLoc, EndLoc, Clauses);
+  return OMPFlushDirective::Create(getASTContext(), StartLoc, EndLoc, Clauses);
 }
 
-StmtResult Sema::ActOnOpenMPDepobjDirective(ArrayRef<OMPClause *> Clauses,
-                                            SourceLocation StartLoc,
-                                            SourceLocation EndLoc) {
+StmtResult SemaOpenMP::ActOnOpenMPDepobjDirective(ArrayRef<OMPClause *> Clauses,
+                                                  SourceLocation StartLoc,
+                                                  SourceLocation EndLoc) {
   if (Clauses.empty()) {
     Diag(StartLoc, diag::err_omp_depobj_expected);
     return StmtError();
@@ -11536,12 +11572,12 @@ StmtResult Sema::ActOnOpenMPDepobjDirective(ArrayRef<OMPClause *> Clauses,
     Diag(Clauses[0]->getEndLoc(), diag::err_omp_depobj_single_clause_expected);
     return StmtError();
   }
-  return OMPDepobjDirective::Create(Context, StartLoc, EndLoc, Clauses);
+  return OMPDepobjDirective::Create(getASTContext(), StartLoc, EndLoc, Clauses);
 }
 
-StmtResult Sema::ActOnOpenMPScanDirective(ArrayRef<OMPClause *> Clauses,
-                                          SourceLocation StartLoc,
-                                          SourceLocation EndLoc) {
+StmtResult SemaOpenMP::ActOnOpenMPScanDirective(ArrayRef<OMPClause *> Clauses,
+                                                SourceLocation StartLoc,
+                                                SourceLocation EndLoc) {
   // Check that exactly one clause is specified.
   if (Clauses.size() != 1) {
     Diag(Clauses.empty() ? EndLoc : Clauses[1]->getBeginLoc(),
@@ -11566,13 +11602,13 @@ StmtResult Sema::ActOnOpenMPScanDirective(ArrayRef<OMPClause *> Clauses,
     return StmtError();
   }
   DSAStack->setParentHasScanDirective(StartLoc);
-  return OMPScanDirective::Create(Context, StartLoc, EndLoc, Clauses);
+  return OMPScanDirective::Create(getASTContext(), StartLoc, EndLoc, Clauses);
 }
 
-StmtResult Sema::ActOnOpenMPOrderedDirective(ArrayRef<OMPClause *> Clauses,
-                                             Stmt *AStmt,
-                                             SourceLocation StartLoc,
-                                             SourceLocation EndLoc) {
+StmtResult
+SemaOpenMP::ActOnOpenMPOrderedDirective(ArrayRef<OMPClause *> Clauses,
+                                        Stmt *AStmt, SourceLocation StartLoc,
+                                        SourceLocation EndLoc) {
   const OMPClause *DependFound = nullptr;
   const OMPClause *DependSourceClause = nullptr;
   const OMPClause *DependSinkClause = nullptr;
@@ -11631,7 +11667,7 @@ StmtResult Sema::ActOnOpenMPOrderedDirective(ArrayRef<OMPClause *> Clauses,
     // An ordered construct with the simd clause is the only OpenMP construct
     // that can appear in the simd region.
     Diag(StartLoc, diag::err_omp_prohibited_region_simd)
-        << (LangOpts.OpenMP >= 50 ? 1 : 0);
+        << (getLangOpts().OpenMP >= 50 ? 1 : 0);
     ErrorFound = true;
   } else if ((DependFound || DoacrossFound) && (TC || SC)) {
     SourceLocation Loc =
@@ -11678,10 +11714,11 @@ StmtResult Sema::ActOnOpenMPOrderedDirective(ArrayRef<OMPClause *> Clauses,
   if (AStmt) {
     assert(isa<CapturedStmt>(AStmt) && "Captured statement expected");
 
-    setFunctionHasBranchProtectedScope();
+    SemaRef.setFunctionHasBranchProtectedScope();
   }
 
-  return OMPOrderedDirective::Create(Context, StartLoc, EndLoc, Clauses, AStmt);
+  return OMPOrderedDirective::Create(getASTContext(), StartLoc, EndLoc, Clauses,
+                                     AStmt);
 }
 
 namespace {
@@ -12739,10 +12776,11 @@ bool OpenMPAtomicCompareCaptureChecker::checkStmt(Stmt *S,
 }
 } // namespace
 
-StmtResult Sema::ActOnOpenMPAtomicDirective(ArrayRef<OMPClause *> Clauses,
-                                            Stmt *AStmt,
-                                            SourceLocation StartLoc,
-                                            SourceLocation EndLoc) {
+StmtResult SemaOpenMP::ActOnOpenMPAtomicDirective(ArrayRef<OMPClause *> Clauses,
+                                                  Stmt *AStmt,
+                                                  SourceLocation StartLoc,
+                                                  SourceLocation EndLoc) {
+  ASTContext &Context = getASTContext();
   // Register location of the first atomic directive.
   DSAStack->addAtomicDirectiveLoc(StartLoc);
   if (!AStmt)
@@ -12945,7 +12983,7 @@ StmtResult Sema::ActOnOpenMPAtomicDirective(ArrayRef<OMPClause *> Clauses,
           << ErrorFound << NoteRange;
       return StmtError();
     }
-    if (CurContext->isDependentContext())
+    if (SemaRef.CurContext->isDependentContext())
       V = X = nullptr;
   } else if (AtomicKind == OMPC_write) {
     enum {
@@ -13007,7 +13045,7 @@ StmtResult Sema::ActOnOpenMPAtomicDirective(ArrayRef<OMPClause *> Clauses,
           << ErrorFound << NoteRange;
       return StmtError();
     }
-    if (CurContext->isDependentContext())
+    if (SemaRef.CurContext->isDependentContext())
       E = X = nullptr;
   } else if (AtomicKind == OMPC_update || AtomicKind == OMPC_unknown) {
     // If clause is update:
@@ -13018,7 +13056,7 @@ StmtResult Sema::ActOnOpenMPAtomicDirective(ArrayRef<OMPClause *> Clauses,
     //  x binop= expr;
     //  x = x binop expr;
     //  x = expr binop x;
-    OpenMPAtomicUpdateChecker Checker(*this);
+    OpenMPAtomicUpdateChecker Checker(SemaRef);
     if (Checker.checkStatement(
             Body,
             (AtomicKind == OMPC_update)
@@ -13026,7 +13064,7 @@ StmtResult Sema::ActOnOpenMPAtomicDirective(ArrayRef<OMPClause *> Clauses,
                 : diag::err_omp_atomic_not_expression_statement,
             diag::note_omp_atomic_update))
       return StmtError();
-    if (!CurContext->isDependentContext()) {
+    if (!SemaRef.CurContext->isDependentContext()) {
       E = Checker.getExpr();
       X = Checker.getX();
       UE = Checker.getUpdateExpr();
@@ -13056,7 +13094,7 @@ StmtResult Sema::ActOnOpenMPAtomicDirective(ArrayRef<OMPClause *> Clauses,
       if (AtomicBinOp && AtomicBinOp->getOpcode() == BO_Assign) {
         V = AtomicBinOp->getLHS();
         Body = AtomicBinOp->getRHS()->IgnoreParenImpCasts();
-        OpenMPAtomicUpdateChecker Checker(*this);
+        OpenMPAtomicUpdateChecker Checker(SemaRef);
         if (Checker.checkStatement(
                 Body, diag::err_omp_atomic_capture_not_expression_statement,
                 diag::note_omp_atomic_update))
@@ -13081,7 +13119,7 @@ StmtResult Sema::ActOnOpenMPAtomicDirective(ArrayRef<OMPClause *> Clauses,
         Diag(NoteLoc, diag::note_omp_atomic_capture) << ErrorFound << NoteRange;
         return StmtError();
       }
-      if (CurContext->isDependentContext())
+      if (SemaRef.CurContext->isDependentContext())
         UE = V = E = X = nullptr;
     } else {
       // If clause is a capture:
@@ -13110,14 +13148,14 @@ StmtResult Sema::ActOnOpenMPAtomicDirective(ArrayRef<OMPClause *> Clauses,
           if (auto *EWC = dyn_cast<ExprWithCleanups>(Second))
             Second = EWC->getSubExpr()->IgnoreParenImpCasts();
           // Need to find what subexpression is 'v' and what is 'x'.
-          OpenMPAtomicUpdateChecker Checker(*this);
+          OpenMPAtomicUpdateChecker Checker(SemaRef);
           bool IsUpdateExprFound = !Checker.checkStatement(Second);
           BinaryOperator *BinOp = nullptr;
           if (IsUpdateExprFound) {
             BinOp = dyn_cast<BinaryOperator>(First);
             IsUpdateExprFound = BinOp && BinOp->getOpcode() == BO_Assign;
           }
-          if (IsUpdateExprFound && !CurContext->isDependentContext()) {
+          if (IsUpdateExprFound && !SemaRef.CurContext->isDependentContext()) {
             //  { v = x; x++; }
             //  { v = x; x--; }
             //  { v = x; ++x; }
@@ -13147,7 +13185,8 @@ StmtResult Sema::ActOnOpenMPAtomicDirective(ArrayRef<OMPClause *> Clauses,
               BinOp = dyn_cast<BinaryOperator>(Second);
               IsUpdateExprFound = BinOp && BinOp->getOpcode() == BO_Assign;
             }
-            if (IsUpdateExprFound && !CurContext->isDependentContext()) {
+            if (IsUpdateExprFound &&
+                !SemaRef.CurContext->isDependentContext()) {
               //  { x++; v = x; }
               //  { x--; v = x; }
               //  { ++x; v = x; }
@@ -13244,12 +13283,12 @@ StmtResult Sema::ActOnOpenMPAtomicDirective(ArrayRef<OMPClause *> Clauses,
       Diag(NoteLoc, diag::note_omp_atomic_capture) << ErrorFound << NoteRange;
       return StmtError();
     }
-    if (CurContext->isDependentContext())
+    if (SemaRef.CurContext->isDependentContext())
       UE = V = E = X = nullptr;
   } else if (AtomicKind == OMPC_compare) {
     if (IsCompareCapture) {
       OpenMPAtomicCompareCaptureChecker::ErrorInfoTy ErrorInfo;
-      OpenMPAtomicCompareCaptureChecker Checker(*this);
+      OpenMPAtomicCompareCaptureChecker Checker(SemaRef);
       if (!Checker.checkStmt(Body, ErrorInfo)) {
         Diag(ErrorInfo.ErrorLoc, diag::err_omp_atomic_compare_capture)
             << ErrorInfo.ErrorRange;
@@ -13269,7 +13308,7 @@ StmtResult Sema::ActOnOpenMPAtomicDirective(ArrayRef<OMPClause *> Clauses,
       IsPostfixUpdate = Checker.isPostfixUpdate();
     } else {
       OpenMPAtomicCompareChecker::ErrorInfoTy ErrorInfo;
-      OpenMPAtomicCompareChecker Checker(*this);
+      OpenMPAtomicCompareChecker Checker(SemaRef);
       if (!Checker.checkStmt(Body, ErrorInfo)) {
         Diag(ErrorInfo.ErrorLoc, diag::err_omp_atomic_compare)
             << ErrorInfo.ErrorRange;
@@ -13307,17 +13346,17 @@ StmtResult Sema::ActOnOpenMPAtomicDirective(ArrayRef<OMPClause *> Clauses,
     }
   }
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
   return OMPAtomicDirective::Create(
       Context, StartLoc, EndLoc, Clauses, AStmt,
       {X, V, R, E, UE, D, CE, IsXLHSInRHSPart, IsPostfixUpdate, IsFailOnly});
 }
 
-StmtResult Sema::ActOnOpenMPTargetDirective(ArrayRef<OMPClause *> Clauses,
-                                            Stmt *AStmt,
-                                            SourceLocation StartLoc,
-                                            SourceLocation EndLoc) {
+StmtResult SemaOpenMP::ActOnOpenMPTargetDirective(ArrayRef<OMPClause *> Clauses,
+                                                  Stmt *AStmt,
+                                                  SourceLocation StartLoc,
+                                                  SourceLocation EndLoc) {
   if (!AStmt)
     return StmtError();
 
@@ -13374,15 +13413,15 @@ StmtResult Sema::ActOnOpenMPTargetDirective(ArrayRef<OMPClause *> Clauses,
     }
   }
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
-  return OMPTargetDirective::Create(Context, StartLoc, EndLoc, Clauses, AStmt);
+  return OMPTargetDirective::Create(getASTContext(), StartLoc, EndLoc, Clauses,
+                                    AStmt);
 }
 
-StmtResult
-Sema::ActOnOpenMPTargetParallelDirective(ArrayRef<OMPClause *> Clauses,
-                                         Stmt *AStmt, SourceLocation StartLoc,
-                                         SourceLocation EndLoc) {
+StmtResult SemaOpenMP::ActOnOpenMPTargetParallelDirective(
+    ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+    SourceLocation EndLoc) {
   if (!AStmt)
     return StmtError();
 
@@ -13404,14 +13443,14 @@ Sema::ActOnOpenMPTargetParallelDirective(ArrayRef<OMPClause *> Clauses,
     CS->getCapturedDecl()->setNothrow();
   }
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
   return OMPTargetParallelDirective::Create(
-      Context, StartLoc, EndLoc, Clauses, AStmt,
+      getASTContext(), StartLoc, EndLoc, Clauses, AStmt,
       DSAStack->getTaskgroupReductionRef(), DSAStack->isCancelRegion());
 }
 
-StmtResult Sema::ActOnOpenMPTargetParallelForDirective(
+StmtResult SemaOpenMP::ActOnOpenMPTargetParallelForDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -13440,28 +13479,28 @@ StmtResult Sema::ActOnOpenMPTargetParallelForDirective(
   // define the nested loops number.
   unsigned NestedLoopCount =
       checkOpenMPLoop(OMPD_target_parallel_for, getCollapseNumberExpr(Clauses),
-                      getOrderedNumberExpr(Clauses), CS, *this, *DSAStack,
+                      getOrderedNumberExpr(Clauses), CS, SemaRef, *DSAStack,
                       VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp target parallel for loop exprs were not built");
 
-  if (!CurContext->isDependentContext()) {
+  if (!SemaRef.CurContext->isDependentContext()) {
     // Finalize the clauses that need pre-built expressions for CodeGen.
     for (OMPClause *C : Clauses) {
       if (auto *LC = dyn_cast<OMPLinearClause>(C))
         if (FinishOpenMPLinearClause(*LC, cast<DeclRefExpr>(B.IterationVarRef),
-                                     B.NumIterations, *this, CurScope,
-                                     DSAStack))
+                                     B.NumIterations, SemaRef,
+                                     SemaRef.getCurScope(), DSAStack))
           return StmtError();
     }
   }
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
   return OMPTargetParallelForDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
       DSAStack->getTaskgroupReductionRef(), DSAStack->isCancelRegion());
 }
 
@@ -13498,10 +13537,10 @@ static bool isClauseMappable(ArrayRef<OMPClause *> Clauses) {
   return true;
 }
 
-StmtResult Sema::ActOnOpenMPTargetDataDirective(ArrayRef<OMPClause *> Clauses,
-                                                Stmt *AStmt,
-                                                SourceLocation StartLoc,
-                                                SourceLocation EndLoc) {
+StmtResult
+SemaOpenMP::ActOnOpenMPTargetDataDirective(ArrayRef<OMPClause *> Clauses,
+                                           Stmt *AStmt, SourceLocation StartLoc,
+                                           SourceLocation EndLoc) {
   if (!AStmt)
     return StmtError();
 
@@ -13511,9 +13550,10 @@ StmtResult Sema::ActOnOpenMPTargetDataDirective(ArrayRef<OMPClause *> Clauses,
   // At least one map, use_device_addr or use_device_ptr clause must appear on
   // the directive.
   if (!hasClauses(Clauses, OMPC_map, OMPC_use_device_ptr) &&
-      (LangOpts.OpenMP < 50 || !hasClauses(Clauses, OMPC_use_device_addr))) {
+      (getLangOpts().OpenMP < 50 ||
+       !hasClauses(Clauses, OMPC_use_device_addr))) {
     StringRef Expected;
-    if (LangOpts.OpenMP < 50)
+    if (getLangOpts().OpenMP < 50)
       Expected = "'map' or 'use_device_ptr'";
     else
       Expected = "'map', 'use_device_ptr', or 'use_device_addr'";
@@ -13522,16 +13562,15 @@ StmtResult Sema::ActOnOpenMPTargetDataDirective(ArrayRef<OMPClause *> Clauses,
     return StmtError();
   }
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
-  return OMPTargetDataDirective::Create(Context, StartLoc, EndLoc, Clauses,
-                                        AStmt);
+  return OMPTargetDataDirective::Create(getASTContext(), StartLoc, EndLoc,
+                                        Clauses, AStmt);
 }
 
-StmtResult
-Sema::ActOnOpenMPTargetEnterDataDirective(ArrayRef<OMPClause *> Clauses,
-                                          SourceLocation StartLoc,
-                                          SourceLocation EndLoc, Stmt *AStmt) {
+StmtResult SemaOpenMP::ActOnOpenMPTargetEnterDataDirective(
+    ArrayRef<OMPClause *> Clauses, SourceLocation StartLoc,
+    SourceLocation EndLoc, Stmt *AStmt) {
   if (!AStmt)
     return StmtError();
 
@@ -13561,14 +13600,13 @@ Sema::ActOnOpenMPTargetEnterDataDirective(ArrayRef<OMPClause *> Clauses,
     return StmtError();
   }
 
-  return OMPTargetEnterDataDirective::Create(Context, StartLoc, EndLoc, Clauses,
-                                             AStmt);
+  return OMPTargetEnterDataDirective::Create(getASTContext(), StartLoc, EndLoc,
+                                             Clauses, AStmt);
 }
 
-StmtResult
-Sema::ActOnOpenMPTargetExitDataDirective(ArrayRef<OMPClause *> Clauses,
-                                         SourceLocation StartLoc,
-                                         SourceLocation EndLoc, Stmt *AStmt) {
+StmtResult SemaOpenMP::ActOnOpenMPTargetExitDataDirective(
+    ArrayRef<OMPClause *> Clauses, SourceLocation StartLoc,
+    SourceLocation EndLoc, Stmt *AStmt) {
   if (!AStmt)
     return StmtError();
 
@@ -13598,14 +13636,13 @@ Sema::ActOnOpenMPTargetExitDataDirective(ArrayRef<OMPClause *> Clauses,
     return StmtError();
   }
 
-  return OMPTargetExitDataDirective::Create(Context, StartLoc, EndLoc, Clauses,
-                                            AStmt);
+  return OMPTargetExitDataDirective::Create(getASTContext(), StartLoc, EndLoc,
+                                            Clauses, AStmt);
 }
 
-StmtResult Sema::ActOnOpenMPTargetUpdateDirective(ArrayRef<OMPClause *> Clauses,
-                                                  SourceLocation StartLoc,
-                                                  SourceLocation EndLoc,
-                                                  Stmt *AStmt) {
+StmtResult SemaOpenMP::ActOnOpenMPTargetUpdateDirective(
+    ArrayRef<OMPClause *> Clauses, SourceLocation StartLoc,
+    SourceLocation EndLoc, Stmt *AStmt) {
   if (!AStmt)
     return StmtError();
 
@@ -13637,13 +13674,14 @@ StmtResult Sema::ActOnOpenMPTargetUpdateDirective(ArrayRef<OMPClause *> Clauses,
     return StmtError();
   }
 
-  return OMPTargetUpdateDirective::Create(Context, StartLoc, EndLoc, Clauses,
-                                          AStmt);
+  return OMPTargetUpdateDirective::Create(getASTContext(), StartLoc, EndLoc,
+                                          Clauses, AStmt);
 }
 
-StmtResult Sema::ActOnOpenMPTeamsDirective(ArrayRef<OMPClause *> Clauses,
-                                           Stmt *AStmt, SourceLocation StartLoc,
-                                           SourceLocation EndLoc) {
+StmtResult SemaOpenMP::ActOnOpenMPTeamsDirective(ArrayRef<OMPClause *> Clauses,
+                                                 Stmt *AStmt,
+                                                 SourceLocation StartLoc,
+                                                 SourceLocation EndLoc) {
   if (!AStmt)
     return StmtError();
 
@@ -13659,17 +13697,17 @@ StmtResult Sema::ActOnOpenMPTeamsDirective(ArrayRef<OMPClause *> Clauses,
   // longjmp() and throw() must not violate the entry/exit criteria.
   CS->getCapturedDecl()->setNothrow();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
   DSAStack->setParentTeamsRegionLoc(StartLoc);
 
-  return OMPTeamsDirective::Create(Context, StartLoc, EndLoc, Clauses, AStmt);
+  return OMPTeamsDirective::Create(getASTContext(), StartLoc, EndLoc, Clauses,
+                                   AStmt);
 }
 
-StmtResult
-Sema::ActOnOpenMPCancellationPointDirective(SourceLocation StartLoc,
-                                            SourceLocation EndLoc,
-                                            OpenMPDirectiveKind CancelRegion) {
+StmtResult SemaOpenMP::ActOnOpenMPCancellationPointDirective(
+    SourceLocation StartLoc, SourceLocation EndLoc,
+    OpenMPDirectiveKind CancelRegion) {
   if (DSAStack->isParentNowaitRegion()) {
     Diag(StartLoc, diag::err_omp_parent_cancel_region_nowait) << 0;
     return StmtError();
@@ -13678,14 +13716,13 @@ Sema::ActOnOpenMPCancellationPointDirective(SourceLocation StartLoc,
     Diag(StartLoc, diag::err_omp_parent_cancel_region_ordered) << 0;
     return StmtError();
   }
-  return OMPCancellationPointDirective::Create(Context, StartLoc, EndLoc,
-                                               CancelRegion);
+  return OMPCancellationPointDirective::Create(getASTContext(), StartLoc,
+                                               EndLoc, CancelRegion);
 }
 
-StmtResult Sema::ActOnOpenMPCancelDirective(ArrayRef<OMPClause *> Clauses,
-                                            SourceLocation StartLoc,
-                                            SourceLocation EndLoc,
-                                            OpenMPDirectiveKind CancelRegion) {
+StmtResult SemaOpenMP::ActOnOpenMPCancelDirective(
+    ArrayRef<OMPClause *> Clauses, SourceLocation StartLoc,
+    SourceLocation EndLoc, OpenMPDirectiveKind CancelRegion) {
   if (DSAStack->isParentNowaitRegion()) {
     Diag(StartLoc, diag::err_omp_parent_cancel_region_nowait) << 1;
     return StmtError();
@@ -13695,7 +13732,7 @@ StmtResult Sema::ActOnOpenMPCancelDirective(ArrayRef<OMPClause *> Clauses,
     return StmtError();
   }
   DSAStack->setParentCancelRegion(/*Cancel=*/true);
-  return OMPCancelDirective::Create(Context, StartLoc, EndLoc, Clauses,
+  return OMPCancelDirective::Create(getASTContext(), StartLoc, EndLoc, Clauses,
                                     CancelRegion);
 }
 
@@ -13726,7 +13763,7 @@ static bool checkReductionClauseWithNogroup(Sema &S,
   return false;
 }
 
-StmtResult Sema::ActOnOpenMPTaskLoopDirective(
+StmtResult SemaOpenMP::ActOnOpenMPTaskLoopDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -13738,33 +13775,33 @@ StmtResult Sema::ActOnOpenMPTaskLoopDirective(
   // define the nested loops number.
   unsigned NestedLoopCount =
       checkOpenMPLoop(OMPD_taskloop, getCollapseNumberExpr(Clauses),
-                      /*OrderedLoopCountExpr=*/nullptr, AStmt, *this, *DSAStack,
-                      VarsWithImplicitDSA, B);
+                      /*OrderedLoopCountExpr=*/nullptr, AStmt, SemaRef,
+                      *DSAStack, VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp for loop exprs were not built");
 
   // OpenMP, [2.9.2 taskloop Construct, Restrictions]
   // The grainsize clause and num_tasks clause are mutually exclusive and may
   // not appear on the same taskloop directive.
-  if (checkMutuallyExclusiveClauses(*this, Clauses,
+  if (checkMutuallyExclusiveClauses(SemaRef, Clauses,
                                     {OMPC_grainsize, OMPC_num_tasks}))
     return StmtError();
   // OpenMP, [2.9.2 taskloop Construct, Restrictions]
   // If a reduction clause is present on the taskloop directive, the nogroup
   // clause must not be specified.
-  if (checkReductionClauseWithNogroup(*this, Clauses))
+  if (checkReductionClauseWithNogroup(SemaRef, Clauses))
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
-  return OMPTaskLoopDirective::Create(Context, StartLoc, EndLoc,
+  SemaRef.setFunctionHasBranchProtectedScope();
+  return OMPTaskLoopDirective::Create(getASTContext(), StartLoc, EndLoc,
                                       NestedLoopCount, Clauses, AStmt, B,
                                       DSAStack->isCancelRegion());
 }
 
-StmtResult Sema::ActOnOpenMPTaskLoopSimdDirective(
+StmtResult SemaOpenMP::ActOnOpenMPTaskLoopSimdDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -13776,21 +13813,21 @@ StmtResult Sema::ActOnOpenMPTaskLoopSimdDirective(
   // define the nested loops number.
   unsigned NestedLoopCount =
       checkOpenMPLoop(OMPD_taskloop_simd, getCollapseNumberExpr(Clauses),
-                      /*OrderedLoopCountExpr=*/nullptr, AStmt, *this, *DSAStack,
-                      VarsWithImplicitDSA, B);
+                      /*OrderedLoopCountExpr=*/nullptr, AStmt, SemaRef,
+                      *DSAStack, VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp for loop exprs were not built");
 
-  if (!CurContext->isDependentContext()) {
+  if (!SemaRef.CurContext->isDependentContext()) {
     // Finalize the clauses that need pre-built expressions for CodeGen.
     for (OMPClause *C : Clauses) {
       if (auto *LC = dyn_cast<OMPLinearClause>(C))
         if (FinishOpenMPLinearClause(*LC, cast<DeclRefExpr>(B.IterationVarRef),
-                                     B.NumIterations, *this, CurScope,
-                                     DSAStack))
+                                     B.NumIterations, SemaRef,
+                                     SemaRef.getCurScope(), DSAStack))
           return StmtError();
     }
   }
@@ -13798,23 +13835,23 @@ StmtResult Sema::ActOnOpenMPTaskLoopSimdDirective(
   // OpenMP, [2.9.2 taskloop Construct, Restrictions]
   // The grainsize clause and num_tasks clause are mutually exclusive and may
   // not appear on the same taskloop directive.
-  if (checkMutuallyExclusiveClauses(*this, Clauses,
+  if (checkMutuallyExclusiveClauses(SemaRef, Clauses,
                                     {OMPC_grainsize, OMPC_num_tasks}))
     return StmtError();
   // OpenMP, [2.9.2 taskloop Construct, Restrictions]
   // If a reduction clause is present on the taskloop directive, the nogroup
   // clause must not be specified.
-  if (checkReductionClauseWithNogroup(*this, Clauses))
+  if (checkReductionClauseWithNogroup(SemaRef, Clauses))
     return StmtError();
-  if (checkSimdlenSafelenSpecified(*this, Clauses))
+  if (checkSimdlenSafelenSpecified(SemaRef, Clauses))
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
-  return OMPTaskLoopSimdDirective::Create(Context, StartLoc, EndLoc,
+  SemaRef.setFunctionHasBranchProtectedScope();
+  return OMPTaskLoopSimdDirective::Create(getASTContext(), StartLoc, EndLoc,
                                           NestedLoopCount, Clauses, AStmt, B);
 }
 
-StmtResult Sema::ActOnOpenMPMasterTaskLoopDirective(
+StmtResult SemaOpenMP::ActOnOpenMPMasterTaskLoopDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -13826,33 +13863,33 @@ StmtResult Sema::ActOnOpenMPMasterTaskLoopDirective(
   // define the nested loops number.
   unsigned NestedLoopCount =
       checkOpenMPLoop(OMPD_master_taskloop, getCollapseNumberExpr(Clauses),
-                      /*OrderedLoopCountExpr=*/nullptr, AStmt, *this, *DSAStack,
-                      VarsWithImplicitDSA, B);
+                      /*OrderedLoopCountExpr=*/nullptr, AStmt, SemaRef,
+                      *DSAStack, VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp for loop exprs were not built");
 
   // OpenMP, [2.9.2 taskloop Construct, Restrictions]
   // The grainsize clause and num_tasks clause are mutually exclusive and may
   // not appear on the same taskloop directive.
-  if (checkMutuallyExclusiveClauses(*this, Clauses,
+  if (checkMutuallyExclusiveClauses(SemaRef, Clauses,
                                     {OMPC_grainsize, OMPC_num_tasks}))
     return StmtError();
   // OpenMP, [2.9.2 taskloop Construct, Restrictions]
   // If a reduction clause is present on the taskloop directive, the nogroup
   // clause must not be specified.
-  if (checkReductionClauseWithNogroup(*this, Clauses))
+  if (checkReductionClauseWithNogroup(SemaRef, Clauses))
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
-  return OMPMasterTaskLoopDirective::Create(Context, StartLoc, EndLoc,
+  SemaRef.setFunctionHasBranchProtectedScope();
+  return OMPMasterTaskLoopDirective::Create(getASTContext(), StartLoc, EndLoc,
                                             NestedLoopCount, Clauses, AStmt, B,
                                             DSAStack->isCancelRegion());
 }
 
-StmtResult Sema::ActOnOpenMPMaskedTaskLoopDirective(
+StmtResult SemaOpenMP::ActOnOpenMPMaskedTaskLoopDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -13864,33 +13901,33 @@ StmtResult Sema::ActOnOpenMPMaskedTaskLoopDirective(
   // define the nested loops number.
   unsigned NestedLoopCount =
       checkOpenMPLoop(OMPD_masked_taskloop, getCollapseNumberExpr(Clauses),
-                      /*OrderedLoopCountExpr=*/nullptr, AStmt, *this, *DSAStack,
-                      VarsWithImplicitDSA, B);
+                      /*OrderedLoopCountExpr=*/nullptr, AStmt, SemaRef,
+                      *DSAStack, VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp for loop exprs were not built");
 
   // OpenMP, [2.9.2 taskloop Construct, Restrictions]
   // The grainsize clause and num_tasks clause are mutually exclusive and may
   // not appear on the same taskloop directive.
-  if (checkMutuallyExclusiveClauses(*this, Clauses,
+  if (checkMutuallyExclusiveClauses(SemaRef, Clauses,
                                     {OMPC_grainsize, OMPC_num_tasks}))
     return StmtError();
   // OpenMP, [2.9.2 taskloop Construct, Restrictions]
   // If a reduction clause is present on the taskloop directive, the nogroup
   // clause must not be specified.
-  if (checkReductionClauseWithNogroup(*this, Clauses))
+  if (checkReductionClauseWithNogroup(SemaRef, Clauses))
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
-  return OMPMaskedTaskLoopDirective::Create(Context, StartLoc, EndLoc,
+  SemaRef.setFunctionHasBranchProtectedScope();
+  return OMPMaskedTaskLoopDirective::Create(getASTContext(), StartLoc, EndLoc,
                                             NestedLoopCount, Clauses, AStmt, B,
                                             DSAStack->isCancelRegion());
 }
 
-StmtResult Sema::ActOnOpenMPMasterTaskLoopSimdDirective(
+StmtResult SemaOpenMP::ActOnOpenMPMasterTaskLoopSimdDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -13902,21 +13939,21 @@ StmtResult Sema::ActOnOpenMPMasterTaskLoopSimdDirective(
   // define the nested loops number.
   unsigned NestedLoopCount =
       checkOpenMPLoop(OMPD_master_taskloop_simd, getCollapseNumberExpr(Clauses),
-                      /*OrderedLoopCountExpr=*/nullptr, AStmt, *this, *DSAStack,
-                      VarsWithImplicitDSA, B);
+                      /*OrderedLoopCountExpr=*/nullptr, AStmt, SemaRef,
+                      *DSAStack, VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp for loop exprs were not built");
 
-  if (!CurContext->isDependentContext()) {
+  if (!SemaRef.CurContext->isDependentContext()) {
     // Finalize the clauses that need pre-built expressions for CodeGen.
     for (OMPClause *C : Clauses) {
       if (auto *LC = dyn_cast<OMPLinearClause>(C))
         if (FinishOpenMPLinearClause(*LC, cast<DeclRefExpr>(B.IterationVarRef),
-                                     B.NumIterations, *this, CurScope,
-                                     DSAStack))
+                                     B.NumIterations, SemaRef,
+                                     SemaRef.getCurScope(), DSAStack))
           return StmtError();
     }
   }
@@ -13924,23 +13961,23 @@ StmtResult Sema::ActOnOpenMPMasterTaskLoopSimdDirective(
   // OpenMP, [2.9.2 taskloop Construct, Restrictions]
   // The grainsize clause and num_tasks clause are mutually exclusive and may
   // not appear on the same taskloop directive.
-  if (checkMutuallyExclusiveClauses(*this, Clauses,
+  if (checkMutuallyExclusiveClauses(SemaRef, Clauses,
                                     {OMPC_grainsize, OMPC_num_tasks}))
     return StmtError();
   // OpenMP, [2.9.2 taskloop Construct, Restrictions]
   // If a reduction clause is present on the taskloop directive, the nogroup
   // clause must not be specified.
-  if (checkReductionClauseWithNogroup(*this, Clauses))
+  if (checkReductionClauseWithNogroup(SemaRef, Clauses))
     return StmtError();
-  if (checkSimdlenSafelenSpecified(*this, Clauses))
+  if (checkSimdlenSafelenSpecified(SemaRef, Clauses))
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
   return OMPMasterTaskLoopSimdDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
 }
 
-StmtResult Sema::ActOnOpenMPMaskedTaskLoopSimdDirective(
+StmtResult SemaOpenMP::ActOnOpenMPMaskedTaskLoopSimdDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -13952,21 +13989,21 @@ StmtResult Sema::ActOnOpenMPMaskedTaskLoopSimdDirective(
   // define the nested loops number.
   unsigned NestedLoopCount =
       checkOpenMPLoop(OMPD_masked_taskloop_simd, getCollapseNumberExpr(Clauses),
-                      /*OrderedLoopCountExpr=*/nullptr, AStmt, *this, *DSAStack,
-                      VarsWithImplicitDSA, B);
+                      /*OrderedLoopCountExpr=*/nullptr, AStmt, SemaRef,
+                      *DSAStack, VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp for loop exprs were not built");
 
-  if (!CurContext->isDependentContext()) {
+  if (!SemaRef.CurContext->isDependentContext()) {
     // Finalize the clauses that need pre-built expressions for CodeGen.
     for (OMPClause *C : Clauses) {
       if (auto *LC = dyn_cast<OMPLinearClause>(C))
         if (FinishOpenMPLinearClause(*LC, cast<DeclRefExpr>(B.IterationVarRef),
-                                     B.NumIterations, *this, CurScope,
-                                     DSAStack))
+                                     B.NumIterations, SemaRef,
+                                     SemaRef.getCurScope(), DSAStack))
           return StmtError();
     }
   }
@@ -13974,23 +14011,23 @@ StmtResult Sema::ActOnOpenMPMaskedTaskLoopSimdDirective(
   // OpenMP, [2.9.2 taskloop Construct, Restrictions]
   // The grainsize clause and num_tasks clause are mutually exclusive and may
   // not appear on the same taskloop directive.
-  if (checkMutuallyExclusiveClauses(*this, Clauses,
+  if (checkMutuallyExclusiveClauses(SemaRef, Clauses,
                                     {OMPC_grainsize, OMPC_num_tasks}))
     return StmtError();
   // OpenMP, [2.9.2 taskloop Construct, Restrictions]
   // If a reduction clause is present on the taskloop directive, the nogroup
   // clause must not be specified.
-  if (checkReductionClauseWithNogroup(*this, Clauses))
+  if (checkReductionClauseWithNogroup(SemaRef, Clauses))
     return StmtError();
-  if (checkSimdlenSafelenSpecified(*this, Clauses))
+  if (checkSimdlenSafelenSpecified(SemaRef, Clauses))
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
   return OMPMaskedTaskLoopSimdDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
 }
 
-StmtResult Sema::ActOnOpenMPParallelMasterTaskLoopDirective(
+StmtResult SemaOpenMP::ActOnOpenMPParallelMasterTaskLoopDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -14021,33 +14058,33 @@ StmtResult Sema::ActOnOpenMPParallelMasterTaskLoopDirective(
   // define the nested loops number.
   unsigned NestedLoopCount = checkOpenMPLoop(
       OMPD_parallel_master_taskloop, getCollapseNumberExpr(Clauses),
-      /*OrderedLoopCountExpr=*/nullptr, CS, *this, *DSAStack,
+      /*OrderedLoopCountExpr=*/nullptr, CS, SemaRef, *DSAStack,
       VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp for loop exprs were not built");
 
   // OpenMP, [2.9.2 taskloop Construct, Restrictions]
   // The grainsize clause and num_tasks clause are mutually exclusive and may
   // not appear on the same taskloop directive.
-  if (checkMutuallyExclusiveClauses(*this, Clauses,
+  if (checkMutuallyExclusiveClauses(SemaRef, Clauses,
                                     {OMPC_grainsize, OMPC_num_tasks}))
     return StmtError();
   // OpenMP, [2.9.2 taskloop Construct, Restrictions]
   // If a reduction clause is present on the taskloop directive, the nogroup
   // clause must not be specified.
-  if (checkReductionClauseWithNogroup(*this, Clauses))
+  if (checkReductionClauseWithNogroup(SemaRef, Clauses))
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
   return OMPParallelMasterTaskLoopDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
       DSAStack->isCancelRegion());
 }
 
-StmtResult Sema::ActOnOpenMPParallelMaskedTaskLoopDirective(
+StmtResult SemaOpenMP::ActOnOpenMPParallelMaskedTaskLoopDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -14078,33 +14115,33 @@ StmtResult Sema::ActOnOpenMPParallelMaskedTaskLoopDirective(
   // define the nested loops number.
   unsigned NestedLoopCount = checkOpenMPLoop(
       OMPD_parallel_masked_taskloop, getCollapseNumberExpr(Clauses),
-      /*OrderedLoopCountExpr=*/nullptr, CS, *this, *DSAStack,
+      /*OrderedLoopCountExpr=*/nullptr, CS, SemaRef, *DSAStack,
       VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp for loop exprs were not built");
 
   // OpenMP, [2.9.2 taskloop Construct, Restrictions]
   // The grainsize clause and num_tasks clause are mutually exclusive and may
   // not appear on the same taskloop directive.
-  if (checkMutuallyExclusiveClauses(*this, Clauses,
+  if (checkMutuallyExclusiveClauses(SemaRef, Clauses,
                                     {OMPC_grainsize, OMPC_num_tasks}))
     return StmtError();
   // OpenMP, [2.9.2 taskloop Construct, Restrictions]
   // If a reduction clause is present on the taskloop directive, the nogroup
   // clause must not be specified.
-  if (checkReductionClauseWithNogroup(*this, Clauses))
+  if (checkReductionClauseWithNogroup(SemaRef, Clauses))
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
   return OMPParallelMaskedTaskLoopDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
       DSAStack->isCancelRegion());
 }
 
-StmtResult Sema::ActOnOpenMPParallelMasterTaskLoopSimdDirective(
+StmtResult SemaOpenMP::ActOnOpenMPParallelMasterTaskLoopSimdDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -14135,21 +14172,21 @@ StmtResult Sema::ActOnOpenMPParallelMasterTaskLoopSimdDirective(
   // define the nested loops number.
   unsigned NestedLoopCount = checkOpenMPLoop(
       OMPD_parallel_master_taskloop_simd, getCollapseNumberExpr(Clauses),
-      /*OrderedLoopCountExpr=*/nullptr, CS, *this, *DSAStack,
+      /*OrderedLoopCountExpr=*/nullptr, CS, SemaRef, *DSAStack,
       VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp for loop exprs were not built");
 
-  if (!CurContext->isDependentContext()) {
+  if (!SemaRef.CurContext->isDependentContext()) {
     // Finalize the clauses that need pre-built expressions for CodeGen.
     for (OMPClause *C : Clauses) {
       if (auto *LC = dyn_cast<OMPLinearClause>(C))
         if (FinishOpenMPLinearClause(*LC, cast<DeclRefExpr>(B.IterationVarRef),
-                                     B.NumIterations, *this, CurScope,
-                                     DSAStack))
+                                     B.NumIterations, SemaRef,
+                                     SemaRef.getCurScope(), DSAStack))
           return StmtError();
     }
   }
@@ -14157,23 +14194,23 @@ StmtResult Sema::ActOnOpenMPParallelMasterTaskLoopSimdDirective(
   // OpenMP, [2.9.2 taskloop Construct, Restrictions]
   // The grainsize clause and num_tasks clause are mutually exclusive and may
   // not appear on the same taskloop directive.
-  if (checkMutuallyExclusiveClauses(*this, Clauses,
+  if (checkMutuallyExclusiveClauses(SemaRef, Clauses,
                                     {OMPC_grainsize, OMPC_num_tasks}))
     return StmtError();
   // OpenMP, [2.9.2 taskloop Construct, Restrictions]
   // If a reduction clause is present on the taskloop directive, the nogroup
   // clause must not be specified.
-  if (checkReductionClauseWithNogroup(*this, Clauses))
+  if (checkReductionClauseWithNogroup(SemaRef, Clauses))
     return StmtError();
-  if (checkSimdlenSafelenSpecified(*this, Clauses))
+  if (checkSimdlenSafelenSpecified(SemaRef, Clauses))
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
   return OMPParallelMasterTaskLoopSimdDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
 }
 
-StmtResult Sema::ActOnOpenMPParallelMaskedTaskLoopSimdDirective(
+StmtResult SemaOpenMP::ActOnOpenMPParallelMaskedTaskLoopSimdDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -14204,21 +14241,21 @@ StmtResult Sema::ActOnOpenMPParallelMaskedTaskLoopSimdDirective(
   // define the nested loops number.
   unsigned NestedLoopCount = checkOpenMPLoop(
       OMPD_parallel_masked_taskloop_simd, getCollapseNumberExpr(Clauses),
-      /*OrderedLoopCountExpr=*/nullptr, CS, *this, *DSAStack,
+      /*OrderedLoopCountExpr=*/nullptr, CS, SemaRef, *DSAStack,
       VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp for loop exprs were not built");
 
-  if (!CurContext->isDependentContext()) {
+  if (!SemaRef.CurContext->isDependentContext()) {
     // Finalize the clauses that need pre-built expressions for CodeGen.
     for (OMPClause *C : Clauses) {
       if (auto *LC = dyn_cast<OMPLinearClause>(C))
         if (FinishOpenMPLinearClause(*LC, cast<DeclRefExpr>(B.IterationVarRef),
-                                     B.NumIterations, *this, CurScope,
-                                     DSAStack))
+                                     B.NumIterations, SemaRef,
+                                     SemaRef.getCurScope(), DSAStack))
           return StmtError();
     }
   }
@@ -14226,23 +14263,23 @@ StmtResult Sema::ActOnOpenMPParallelMaskedTaskLoopSimdDirective(
   // OpenMP, [2.9.2 taskloop Construct, Restrictions]
   // The grainsize clause and num_tasks clause are mutually exclusive and may
   // not appear on the same taskloop directive.
-  if (checkMutuallyExclusiveClauses(*this, Clauses,
+  if (checkMutuallyExclusiveClauses(SemaRef, Clauses,
                                     {OMPC_grainsize, OMPC_num_tasks}))
     return StmtError();
   // OpenMP, [2.9.2 taskloop Construct, Restrictions]
   // If a reduction clause is present on the taskloop directive, the nogroup
   // clause must not be specified.
-  if (checkReductionClauseWithNogroup(*this, Clauses))
+  if (checkReductionClauseWithNogroup(SemaRef, Clauses))
     return StmtError();
-  if (checkSimdlenSafelenSpecified(*this, Clauses))
+  if (checkSimdlenSafelenSpecified(SemaRef, Clauses))
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
   return OMPParallelMaskedTaskLoopSimdDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
 }
 
-StmtResult Sema::ActOnOpenMPDistributeDirective(
+StmtResult SemaOpenMP::ActOnOpenMPDistributeDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -14258,21 +14295,21 @@ StmtResult Sema::ActOnOpenMPDistributeDirective(
   unsigned NestedLoopCount =
       checkOpenMPLoop(OMPD_distribute, getCollapseNumberExpr(Clauses),
                       nullptr /*ordered not a clause on distribute*/, AStmt,
-                      *this, *DSAStack, VarsWithImplicitDSA, B);
+                      SemaRef, *DSAStack, VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp for loop exprs were not built");
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
   auto *DistributeDirective = OMPDistributeDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
       DSAStack->getMappedDirective());
   return DistributeDirective;
 }
 
-StmtResult Sema::ActOnOpenMPDistributeParallelForDirective(
+StmtResult SemaOpenMP::ActOnOpenMPDistributeParallelForDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -14302,21 +14339,21 @@ StmtResult Sema::ActOnOpenMPDistributeParallelForDirective(
   // define the nested loops number.
   unsigned NestedLoopCount = checkOpenMPLoop(
       OMPD_distribute_parallel_for, getCollapseNumberExpr(Clauses),
-      nullptr /*ordered not a clause on distribute*/, CS, *this, *DSAStack,
+      nullptr /*ordered not a clause on distribute*/, CS, SemaRef, *DSAStack,
       VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp for loop exprs were not built");
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
   return OMPDistributeParallelForDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
       DSAStack->getTaskgroupReductionRef(), DSAStack->isCancelRegion());
 }
 
-StmtResult Sema::ActOnOpenMPDistributeParallelForSimdDirective(
+StmtResult SemaOpenMP::ActOnOpenMPDistributeParallelForSimdDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -14346,34 +14383,34 @@ StmtResult Sema::ActOnOpenMPDistributeParallelForSimdDirective(
   // define the nested loops number.
   unsigned NestedLoopCount = checkOpenMPLoop(
       OMPD_distribute_parallel_for_simd, getCollapseNumberExpr(Clauses),
-      nullptr /*ordered not a clause on distribute*/, CS, *this, *DSAStack,
+      nullptr /*ordered not a clause on distribute*/, CS, SemaRef, *DSAStack,
       VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp for loop exprs were not built");
 
-  if (!CurContext->isDependentContext()) {
+  if (!SemaRef.CurContext->isDependentContext()) {
     // Finalize the clauses that need pre-built expressions for CodeGen.
     for (OMPClause *C : Clauses) {
       if (auto *LC = dyn_cast<OMPLinearClause>(C))
         if (FinishOpenMPLinearClause(*LC, cast<DeclRefExpr>(B.IterationVarRef),
-                                     B.NumIterations, *this, CurScope,
-                                     DSAStack))
+                                     B.NumIterations, SemaRef,
+                                     SemaRef.getCurScope(), DSAStack))
           return StmtError();
     }
   }
 
-  if (checkSimdlenSafelenSpecified(*this, Clauses))
+  if (checkSimdlenSafelenSpecified(SemaRef, Clauses))
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
   return OMPDistributeParallelForSimdDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
 }
 
-StmtResult Sema::ActOnOpenMPDistributeSimdDirective(
+StmtResult SemaOpenMP::ActOnOpenMPDistributeSimdDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -14402,34 +14439,34 @@ StmtResult Sema::ActOnOpenMPDistributeSimdDirective(
   // define the nested loops number.
   unsigned NestedLoopCount =
       checkOpenMPLoop(OMPD_distribute_simd, getCollapseNumberExpr(Clauses),
-                      nullptr /*ordered not a clause on distribute*/, CS, *this,
-                      *DSAStack, VarsWithImplicitDSA, B);
+                      nullptr /*ordered not a clause on distribute*/, CS,
+                      SemaRef, *DSAStack, VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp for loop exprs were not built");
 
-  if (!CurContext->isDependentContext()) {
+  if (!SemaRef.CurContext->isDependentContext()) {
     // Finalize the clauses that need pre-built expressions for CodeGen.
     for (OMPClause *C : Clauses) {
       if (auto *LC = dyn_cast<OMPLinearClause>(C))
         if (FinishOpenMPLinearClause(*LC, cast<DeclRefExpr>(B.IterationVarRef),
-                                     B.NumIterations, *this, CurScope,
-                                     DSAStack))
+                                     B.NumIterations, SemaRef,
+                                     SemaRef.getCurScope(), DSAStack))
           return StmtError();
     }
   }
 
-  if (checkSimdlenSafelenSpecified(*this, Clauses))
+  if (checkSimdlenSafelenSpecified(SemaRef, Clauses))
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
-  return OMPDistributeSimdDirective::Create(Context, StartLoc, EndLoc,
+  SemaRef.setFunctionHasBranchProtectedScope();
+  return OMPDistributeSimdDirective::Create(getASTContext(), StartLoc, EndLoc,
                                             NestedLoopCount, Clauses, AStmt, B);
 }
 
-StmtResult Sema::ActOnOpenMPTargetParallelForSimdDirective(
+StmtResult SemaOpenMP::ActOnOpenMPTargetParallelForSimdDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -14459,33 +14496,33 @@ StmtResult Sema::ActOnOpenMPTargetParallelForSimdDirective(
   // define the nested loops number.
   unsigned NestedLoopCount = checkOpenMPLoop(
       OMPD_target_parallel_for_simd, getCollapseNumberExpr(Clauses),
-      getOrderedNumberExpr(Clauses), CS, *this, *DSAStack, VarsWithImplicitDSA,
-      B);
+      getOrderedNumberExpr(Clauses), CS, SemaRef, *DSAStack,
+      VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp target parallel for simd loop exprs were not built");
 
-  if (!CurContext->isDependentContext()) {
+  if (!SemaRef.CurContext->isDependentContext()) {
     // Finalize the clauses that need pre-built expressions for CodeGen.
     for (OMPClause *C : Clauses) {
       if (auto *LC = dyn_cast<OMPLinearClause>(C))
         if (FinishOpenMPLinearClause(*LC, cast<DeclRefExpr>(B.IterationVarRef),
-                                     B.NumIterations, *this, CurScope,
-                                     DSAStack))
+                                     B.NumIterations, SemaRef,
+                                     SemaRef.getCurScope(), DSAStack))
           return StmtError();
     }
   }
-  if (checkSimdlenSafelenSpecified(*this, Clauses))
+  if (checkSimdlenSafelenSpecified(SemaRef, Clauses))
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
   return OMPTargetParallelForSimdDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
 }
 
-StmtResult Sema::ActOnOpenMPTargetSimdDirective(
+StmtResult SemaOpenMP::ActOnOpenMPTargetSimdDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -14514,34 +14551,34 @@ StmtResult Sema::ActOnOpenMPTargetSimdDirective(
   // nested loops number.
   unsigned NestedLoopCount =
       checkOpenMPLoop(OMPD_target_simd, getCollapseNumberExpr(Clauses),
-                      getOrderedNumberExpr(Clauses), CS, *this, *DSAStack,
+                      getOrderedNumberExpr(Clauses), CS, SemaRef, *DSAStack,
                       VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp target simd loop exprs were not built");
 
-  if (!CurContext->isDependentContext()) {
+  if (!SemaRef.CurContext->isDependentContext()) {
     // Finalize the clauses that need pre-built expressions for CodeGen.
     for (OMPClause *C : Clauses) {
       if (auto *LC = dyn_cast<OMPLinearClause>(C))
         if (FinishOpenMPLinearClause(*LC, cast<DeclRefExpr>(B.IterationVarRef),
-                                     B.NumIterations, *this, CurScope,
-                                     DSAStack))
+                                     B.NumIterations, SemaRef,
+                                     SemaRef.getCurScope(), DSAStack))
           return StmtError();
     }
   }
 
-  if (checkSimdlenSafelenSpecified(*this, Clauses))
+  if (checkSimdlenSafelenSpecified(SemaRef, Clauses))
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
-  return OMPTargetSimdDirective::Create(Context, StartLoc, EndLoc,
+  SemaRef.setFunctionHasBranchProtectedScope();
+  return OMPTargetSimdDirective::Create(getASTContext(), StartLoc, EndLoc,
                                         NestedLoopCount, Clauses, AStmt, B);
 }
 
-StmtResult Sema::ActOnOpenMPTeamsDistributeDirective(
+StmtResult SemaOpenMP::ActOnOpenMPTeamsDistributeDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -14570,23 +14607,23 @@ StmtResult Sema::ActOnOpenMPTeamsDistributeDirective(
   // define the nested loops number.
   unsigned NestedLoopCount =
       checkOpenMPLoop(OMPD_teams_distribute, getCollapseNumberExpr(Clauses),
-                      nullptr /*ordered not a clause on distribute*/, CS, *this,
-                      *DSAStack, VarsWithImplicitDSA, B);
+                      nullptr /*ordered not a clause on distribute*/, CS,
+                      SemaRef, *DSAStack, VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp teams distribute loop exprs were not built");
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
   DSAStack->setParentTeamsRegionLoc(StartLoc);
 
   return OMPTeamsDistributeDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
 }
 
-StmtResult Sema::ActOnOpenMPTeamsDistributeSimdDirective(
+StmtResult SemaOpenMP::ActOnOpenMPTeamsDistributeSimdDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -14616,38 +14653,38 @@ StmtResult Sema::ActOnOpenMPTeamsDistributeSimdDirective(
   // define the nested loops number.
   unsigned NestedLoopCount = checkOpenMPLoop(
       OMPD_teams_distribute_simd, getCollapseNumberExpr(Clauses),
-      nullptr /*ordered not a clause on distribute*/, CS, *this, *DSAStack,
+      nullptr /*ordered not a clause on distribute*/, CS, SemaRef, *DSAStack,
       VarsWithImplicitDSA, B);
 
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp teams distribute simd loop exprs were not built");
 
-  if (!CurContext->isDependentContext()) {
+  if (!SemaRef.CurContext->isDependentContext()) {
     // Finalize the clauses that need pre-built expressions for CodeGen.
     for (OMPClause *C : Clauses) {
       if (auto *LC = dyn_cast<OMPLinearClause>(C))
         if (FinishOpenMPLinearClause(*LC, cast<DeclRefExpr>(B.IterationVarRef),
-                                     B.NumIterations, *this, CurScope,
-                                     DSAStack))
+                                     B.NumIterations, SemaRef,
+                                     SemaRef.getCurScope(), DSAStack))
           return StmtError();
     }
   }
 
-  if (checkSimdlenSafelenSpecified(*this, Clauses))
+  if (checkSimdlenSafelenSpecified(SemaRef, Clauses))
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
   DSAStack->setParentTeamsRegionLoc(StartLoc);
 
   return OMPTeamsDistributeSimdDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
 }
 
-StmtResult Sema::ActOnOpenMPTeamsDistributeParallelForSimdDirective(
+StmtResult SemaOpenMP::ActOnOpenMPTeamsDistributeParallelForSimdDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -14678,38 +14715,38 @@ StmtResult Sema::ActOnOpenMPTeamsDistributeParallelForSimdDirective(
   // define the nested loops number.
   unsigned NestedLoopCount = checkOpenMPLoop(
       OMPD_teams_distribute_parallel_for_simd, getCollapseNumberExpr(Clauses),
-      nullptr /*ordered not a clause on distribute*/, CS, *this, *DSAStack,
+      nullptr /*ordered not a clause on distribute*/, CS, SemaRef, *DSAStack,
       VarsWithImplicitDSA, B);
 
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp for loop exprs were not built");
 
-  if (!CurContext->isDependentContext()) {
+  if (!SemaRef.CurContext->isDependentContext()) {
     // Finalize the clauses that need pre-built expressions for CodeGen.
     for (OMPClause *C : Clauses) {
       if (auto *LC = dyn_cast<OMPLinearClause>(C))
         if (FinishOpenMPLinearClause(*LC, cast<DeclRefExpr>(B.IterationVarRef),
-                                     B.NumIterations, *this, CurScope,
-                                     DSAStack))
+                                     B.NumIterations, SemaRef,
+                                     SemaRef.getCurScope(), DSAStack))
           return StmtError();
     }
   }
 
-  if (checkSimdlenSafelenSpecified(*this, Clauses))
+  if (checkSimdlenSafelenSpecified(SemaRef, Clauses))
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
   DSAStack->setParentTeamsRegionLoc(StartLoc);
 
   return OMPTeamsDistributeParallelForSimdDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
 }
 
-StmtResult Sema::ActOnOpenMPTeamsDistributeParallelForDirective(
+StmtResult SemaOpenMP::ActOnOpenMPTeamsDistributeParallelForDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -14740,28 +14777,27 @@ StmtResult Sema::ActOnOpenMPTeamsDistributeParallelForDirective(
   // define the nested loops number.
   unsigned NestedLoopCount = checkOpenMPLoop(
       OMPD_teams_distribute_parallel_for, getCollapseNumberExpr(Clauses),
-      nullptr /*ordered not a clause on distribute*/, CS, *this, *DSAStack,
+      nullptr /*ordered not a clause on distribute*/, CS, SemaRef, *DSAStack,
       VarsWithImplicitDSA, B);
 
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp for loop exprs were not built");
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
   DSAStack->setParentTeamsRegionLoc(StartLoc);
 
   return OMPTeamsDistributeParallelForDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
       DSAStack->getTaskgroupReductionRef(), DSAStack->isCancelRegion());
 }
 
-StmtResult Sema::ActOnOpenMPTargetTeamsDirective(ArrayRef<OMPClause *> Clauses,
-                                                 Stmt *AStmt,
-                                                 SourceLocation StartLoc,
-                                                 SourceLocation EndLoc) {
+StmtResult SemaOpenMP::ActOnOpenMPTargetTeamsDirective(
+    ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
+    SourceLocation EndLoc) {
   if (!AStmt)
     return StmtError();
 
@@ -14783,7 +14819,7 @@ StmtResult Sema::ActOnOpenMPTargetTeamsDirective(ArrayRef<OMPClause *> Clauses,
     // longjmp() and throw() must not violate the entry/exit criteria.
     CS->getCapturedDecl()->setNothrow();
   }
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
   const OMPClause *BareClause = nullptr;
   bool HasThreadLimitAndNumTeamsClause = hasClauses(Clauses, OMPC_num_teams) &&
@@ -14798,11 +14834,11 @@ StmtResult Sema::ActOnOpenMPTargetTeamsDirective(ArrayRef<OMPClause *> Clauses,
     return StmtError();
   }
 
-  return OMPTargetTeamsDirective::Create(Context, StartLoc, EndLoc, Clauses,
-                                         AStmt);
+  return OMPTargetTeamsDirective::Create(getASTContext(), StartLoc, EndLoc,
+                                         Clauses, AStmt);
 }
 
-StmtResult Sema::ActOnOpenMPTargetTeamsDistributeDirective(
+StmtResult SemaOpenMP::ActOnOpenMPTargetTeamsDistributeDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -14832,20 +14868,20 @@ StmtResult Sema::ActOnOpenMPTargetTeamsDistributeDirective(
   // define the nested loops number.
   unsigned NestedLoopCount = checkOpenMPLoop(
       OMPD_target_teams_distribute, getCollapseNumberExpr(Clauses),
-      nullptr /*ordered not a clause on distribute*/, CS, *this, *DSAStack,
+      nullptr /*ordered not a clause on distribute*/, CS, SemaRef, *DSAStack,
       VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp target teams distribute loop exprs were not built");
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
   return OMPTargetTeamsDistributeDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
 }
 
-StmtResult Sema::ActOnOpenMPTargetTeamsDistributeParallelForDirective(
+StmtResult SemaOpenMP::ActOnOpenMPTargetTeamsDistributeParallelForDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -14875,32 +14911,32 @@ StmtResult Sema::ActOnOpenMPTargetTeamsDistributeParallelForDirective(
   // define the nested loops number.
   unsigned NestedLoopCount = checkOpenMPLoop(
       OMPD_target_teams_distribute_parallel_for, getCollapseNumberExpr(Clauses),
-      nullptr /*ordered not a clause on distribute*/, CS, *this, *DSAStack,
+      nullptr /*ordered not a clause on distribute*/, CS, SemaRef, *DSAStack,
       VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp target teams distribute parallel for loop exprs were not built");
 
-  if (!CurContext->isDependentContext()) {
+  if (!SemaRef.CurContext->isDependentContext()) {
     // Finalize the clauses that need pre-built expressions for CodeGen.
     for (OMPClause *C : Clauses) {
       if (auto *LC = dyn_cast<OMPLinearClause>(C))
         if (FinishOpenMPLinearClause(*LC, cast<DeclRefExpr>(B.IterationVarRef),
-                                     B.NumIterations, *this, CurScope,
-                                     DSAStack))
+                                     B.NumIterations, SemaRef,
+                                     SemaRef.getCurScope(), DSAStack))
           return StmtError();
     }
   }
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
   return OMPTargetTeamsDistributeParallelForDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B,
       DSAStack->getTaskgroupReductionRef(), DSAStack->isCancelRegion());
 }
 
-StmtResult Sema::ActOnOpenMPTargetTeamsDistributeParallelForSimdDirective(
+StmtResult SemaOpenMP::ActOnOpenMPTargetTeamsDistributeParallelForSimdDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -14931,35 +14967,35 @@ StmtResult Sema::ActOnOpenMPTargetTeamsDistributeParallelForSimdDirective(
   unsigned NestedLoopCount =
       checkOpenMPLoop(OMPD_target_teams_distribute_parallel_for_simd,
                       getCollapseNumberExpr(Clauses),
-                      nullptr /*ordered not a clause on distribute*/, CS, *this,
-                      *DSAStack, VarsWithImplicitDSA, B);
+                      nullptr /*ordered not a clause on distribute*/, CS,
+                      SemaRef, *DSAStack, VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp target teams distribute parallel for simd loop exprs were not "
          "built");
 
-  if (!CurContext->isDependentContext()) {
+  if (!SemaRef.CurContext->isDependentContext()) {
     // Finalize the clauses that need pre-built expressions for CodeGen.
     for (OMPClause *C : Clauses) {
       if (auto *LC = dyn_cast<OMPLinearClause>(C))
         if (FinishOpenMPLinearClause(*LC, cast<DeclRefExpr>(B.IterationVarRef),
-                                     B.NumIterations, *this, CurScope,
-                                     DSAStack))
+                                     B.NumIterations, SemaRef,
+                                     SemaRef.getCurScope(), DSAStack))
           return StmtError();
     }
   }
 
-  if (checkSimdlenSafelenSpecified(*this, Clauses))
+  if (checkSimdlenSafelenSpecified(SemaRef, Clauses))
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
   return OMPTargetTeamsDistributeParallelForSimdDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
 }
 
-StmtResult Sema::ActOnOpenMPTargetTeamsDistributeSimdDirective(
+StmtResult SemaOpenMP::ActOnOpenMPTargetTeamsDistributeSimdDirective(
     ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
     SourceLocation EndLoc, VarsWithInheritedDSAType &VarsWithImplicitDSA) {
   if (!AStmt)
@@ -14989,34 +15025,34 @@ StmtResult Sema::ActOnOpenMPTargetTeamsDistributeSimdDirective(
   // define the nested loops number.
   unsigned NestedLoopCount = checkOpenMPLoop(
       OMPD_target_teams_distribute_simd, getCollapseNumberExpr(Clauses),
-      nullptr /*ordered not a clause on distribute*/, CS, *this, *DSAStack,
+      nullptr /*ordered not a clause on distribute*/, CS, SemaRef, *DSAStack,
       VarsWithImplicitDSA, B);
   if (NestedLoopCount == 0)
     return StmtError();
 
-  assert((CurContext->isDependentContext() || B.builtAll()) &&
+  assert((SemaRef.CurContext->isDependentContext() || B.builtAll()) &&
          "omp target teams distribute simd loop exprs were not built");
 
-  if (!CurContext->isDependentContext()) {
+  if (!SemaRef.CurContext->isDependentContext()) {
     // Finalize the clauses that need pre-built expressions for CodeGen.
     for (OMPClause *C : Clauses) {
       if (auto *LC = dyn_cast<OMPLinearClause>(C))
         if (FinishOpenMPLinearClause(*LC, cast<DeclRefExpr>(B.IterationVarRef),
-                                     B.NumIterations, *this, CurScope,
-                                     DSAStack))
+                                     B.NumIterations, SemaRef,
+                                     SemaRef.getCurScope(), DSAStack))
           return StmtError();
     }
   }
 
-  if (checkSimdlenSafelenSpecified(*this, Clauses))
+  if (checkSimdlenSafelenSpecified(SemaRef, Clauses))
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
   return OMPTargetTeamsDistributeSimdDirective::Create(
-      Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
+      getASTContext(), StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt, B);
 }
 
-bool Sema::checkTransformableLoopNest(
+bool SemaOpenMP::checkTransformableLoopNest(
     OpenMPDirectiveKind Kind, Stmt *AStmt, int NumLoops,
     SmallVectorImpl<OMPLoopBasedDirective::HelperExprs> &LoopHelpers,
     Stmt *&Body,
@@ -15029,7 +15065,7 @@ bool Sema::checkTransformableLoopNest(
                                                         Stmt *CurStmt) {
         VarsWithInheritedDSAType TmpDSA;
         unsigned SingleNumLoops =
-            checkOpenMPLoop(Kind, nullptr, nullptr, CurStmt, *this, *DSAStack,
+            checkOpenMPLoop(Kind, nullptr, nullptr, CurStmt, SemaRef, *DSAStack,
                             TmpDSA, LoopHelpers[Cnt]);
         if (SingleNumLoops == 0)
           return true;
@@ -15065,9 +15101,11 @@ bool Sema::checkTransformableLoopNest(
   return Result;
 }
 
-StmtResult Sema::ActOnOpenMPTileDirective(ArrayRef<OMPClause *> Clauses,
-                                          Stmt *AStmt, SourceLocation StartLoc,
-                                          SourceLocation EndLoc) {
+StmtResult SemaOpenMP::ActOnOpenMPTileDirective(ArrayRef<OMPClause *> Clauses,
+                                                Stmt *AStmt,
+                                                SourceLocation StartLoc,
+                                                SourceLocation EndLoc) {
+  ASTContext &Context = getASTContext();
   auto SizesClauses =
       OMPExecutableDirective::getClausesOfKind<OMPSizesClause>(Clauses);
   if (SizesClauses.empty()) {
@@ -15091,7 +15129,7 @@ StmtResult Sema::ActOnOpenMPTileDirective(ArrayRef<OMPClause *> Clauses,
     return StmtError();
 
   // Delay tiling to when template is completely instantiated.
-  if (CurContext->isDependentContext())
+  if (SemaRef.CurContext->isDependentContext())
     return OMPTileDirective::Create(Context, StartLoc, EndLoc, Clauses,
                                     NumLoops, AStmt, nullptr, nullptr);
 
@@ -15117,7 +15155,7 @@ StmtResult Sema::ActOnOpenMPTileDirective(ArrayRef<OMPClause *> Clauses,
       std::string FloorCntName =
           (Twine(".floor_") + llvm::utostr(I) + ".iv." + OrigVarName).str();
       VarDecl *FloorCntDecl =
-          buildVarDecl(*this, {}, CntTy, FloorCntName, nullptr, OrigCntVar);
+          buildVarDecl(SemaRef, {}, CntTy, FloorCntName, nullptr, OrigCntVar);
       FloorIndVars[I] = FloorCntDecl;
     }
 
@@ -15130,7 +15168,8 @@ StmtResult Sema::ActOnOpenMPTileDirective(ArrayRef<OMPClause *> Clauses,
       // used by the expressions to derive the original iteration variable's
       // value from the logical iteration number.
       auto *TileCntDecl = cast<VarDecl>(IterVarRef->getDecl());
-      TileCntDecl->setDeclName(&PP.getIdentifierTable().get(TileCntName));
+      TileCntDecl->setDeclName(
+          &SemaRef.PP.getIdentifierTable().get(TileCntName));
       TileIndVars[I] = TileCntDecl;
     }
     for (auto &P : OriginalInits[I]) {
@@ -15159,17 +15198,18 @@ StmtResult Sema::ActOnOpenMPTileDirective(ArrayRef<OMPClause *> Clauses,
     auto *OrigCntVar = cast<DeclRefExpr>(LoopHelper.Counters[0]);
     QualType CntTy = OrigCntVar->getType();
     Expr *DimTileSize = SizesClause->getSizesRefs()[I];
-    Scope *CurScope = getCurScope();
+    Scope *CurScope = SemaRef.getCurScope();
 
     // Commonly used variables.
-    DeclRefExpr *TileIV = buildDeclRefExpr(*this, TileIndVars[I], CntTy,
+    DeclRefExpr *TileIV = buildDeclRefExpr(SemaRef, TileIndVars[I], CntTy,
                                            OrigCntVar->getExprLoc());
-    DeclRefExpr *FloorIV = buildDeclRefExpr(*this, FloorIndVars[I], CntTy,
+    DeclRefExpr *FloorIV = buildDeclRefExpr(SemaRef, FloorIndVars[I], CntTy,
                                             OrigCntVar->getExprLoc());
 
     // For init-statement: auto .tile.iv = .floor.iv
-    AddInitializerToDecl(TileIndVars[I], DefaultLvalueConversion(FloorIV).get(),
-                         /*DirectInit=*/false);
+    SemaRef.AddInitializerToDecl(TileIndVars[I],
+                                 SemaRef.DefaultLvalueConversion(FloorIV).get(),
+                                 /*DirectInit=*/false);
     Decl *CounterDecl = TileIndVars[I];
     StmtResult InitStmt = new (Context)
         DeclStmt(DeclGroupRef::Create(Context, &CounterDecl, 1),
@@ -15179,28 +15219,29 @@ StmtResult Sema::ActOnOpenMPTileDirective(ArrayRef<OMPClause *> Clauses,
 
     // For cond-expression: .tile.iv < min(.floor.iv + DimTileSize,
     // NumIterations)
-    ExprResult EndOfTile = BuildBinOp(CurScope, LoopHelper.Cond->getExprLoc(),
-                                      BO_Add, FloorIV, DimTileSize);
+    ExprResult EndOfTile = SemaRef.BuildBinOp(
+        CurScope, LoopHelper.Cond->getExprLoc(), BO_Add, FloorIV, DimTileSize);
     if (!EndOfTile.isUsable())
       return StmtError();
     ExprResult IsPartialTile =
-        BuildBinOp(CurScope, LoopHelper.Cond->getExprLoc(), BO_LT,
-                   NumIterations, EndOfTile.get());
+        SemaRef.BuildBinOp(CurScope, LoopHelper.Cond->getExprLoc(), BO_LT,
+                           NumIterations, EndOfTile.get());
     if (!IsPartialTile.isUsable())
       return StmtError();
-    ExprResult MinTileAndIterSpace = ActOnConditionalOp(
+    ExprResult MinTileAndIterSpace = SemaRef.ActOnConditionalOp(
         LoopHelper.Cond->getBeginLoc(), LoopHelper.Cond->getEndLoc(),
         IsPartialTile.get(), NumIterations, EndOfTile.get());
     if (!MinTileAndIterSpace.isUsable())
       return StmtError();
-    ExprResult CondExpr = BuildBinOp(CurScope, LoopHelper.Cond->getExprLoc(),
-                                     BO_LT, TileIV, MinTileAndIterSpace.get());
+    ExprResult CondExpr =
+        SemaRef.BuildBinOp(CurScope, LoopHelper.Cond->getExprLoc(), BO_LT,
+                           TileIV, MinTileAndIterSpace.get());
     if (!CondExpr.isUsable())
       return StmtError();
 
     // For incr-statement: ++.tile.iv
-    ExprResult IncrStmt =
-        BuildUnaryOp(CurScope, LoopHelper.Inc->getExprLoc(), UO_PreInc, TileIV);
+    ExprResult IncrStmt = SemaRef.BuildUnaryOp(
+        CurScope, LoopHelper.Inc->getExprLoc(), UO_PreInc, TileIV);
     if (!IncrStmt.isUsable())
       return StmtError();
 
@@ -15235,16 +15276,16 @@ StmtResult Sema::ActOnOpenMPTileDirective(ArrayRef<OMPClause *> Clauses,
     DeclRefExpr *OrigCntVar = cast<DeclRefExpr>(LoopHelper.Counters[0]);
     QualType CntTy = OrigCntVar->getType();
     Expr *DimTileSize = SizesClause->getSizesRefs()[I];
-    Scope *CurScope = getCurScope();
+    Scope *CurScope = SemaRef.getCurScope();
 
     // Commonly used variables.
-    DeclRefExpr *FloorIV = buildDeclRefExpr(*this, FloorIndVars[I], CntTy,
+    DeclRefExpr *FloorIV = buildDeclRefExpr(SemaRef, FloorIndVars[I], CntTy,
                                             OrigCntVar->getExprLoc());
 
     // For init-statement: auto .floor.iv = 0
-    AddInitializerToDecl(
+    SemaRef.AddInitializerToDecl(
         FloorIndVars[I],
-        ActOnIntegerConstant(LoopHelper.Init->getExprLoc(), 0).get(),
+        SemaRef.ActOnIntegerConstant(LoopHelper.Init->getExprLoc(), 0).get(),
         /*DirectInit=*/false);
     Decl *CounterDecl = FloorIndVars[I];
     StmtResult InitStmt = new (Context)
@@ -15254,14 +15295,15 @@ StmtResult Sema::ActOnOpenMPTileDirective(ArrayRef<OMPClause *> Clauses,
       return StmtError();
 
     // For cond-expression: .floor.iv < NumIterations
-    ExprResult CondExpr = BuildBinOp(CurScope, LoopHelper.Cond->getExprLoc(),
-                                     BO_LT, FloorIV, NumIterations);
+    ExprResult CondExpr = SemaRef.BuildBinOp(
+        CurScope, LoopHelper.Cond->getExprLoc(), BO_LT, FloorIV, NumIterations);
     if (!CondExpr.isUsable())
       return StmtError();
 
     // For incr-statement: .floor.iv += DimTileSize
-    ExprResult IncrStmt = BuildBinOp(CurScope, LoopHelper.Inc->getExprLoc(),
-                                     BO_AddAssign, FloorIV, DimTileSize);
+    ExprResult IncrStmt =
+        SemaRef.BuildBinOp(CurScope, LoopHelper.Inc->getExprLoc(), BO_AddAssign,
+                           FloorIV, DimTileSize);
     if (!IncrStmt.isUsable())
       return StmtError();
 
@@ -15276,15 +15318,18 @@ StmtResult Sema::ActOnOpenMPTileDirective(ArrayRef<OMPClause *> Clauses,
                                   buildPreInits(Context, PreInits));
 }
 
-StmtResult Sema::ActOnOpenMPUnrollDirective(ArrayRef<OMPClause *> Clauses,
-                                            Stmt *AStmt,
-                                            SourceLocation StartLoc,
-                                            SourceLocation EndLoc) {
+StmtResult SemaOpenMP::ActOnOpenMPUnrollDirective(ArrayRef<OMPClause *> Clauses,
+                                                  Stmt *AStmt,
+                                                  SourceLocation StartLoc,
+                                                  SourceLocation EndLoc) {
+  ASTContext &Context = getASTContext();
+  Scope *CurScope = SemaRef.getCurScope();
   // Empty statement should only be possible if there already was an error.
   if (!AStmt)
     return StmtError();
 
-  if (checkMutuallyExclusiveClauses(*this, Clauses, {OMPC_partial, OMPC_full}))
+  if (checkMutuallyExclusiveClauses(SemaRef, Clauses,
+                                    {OMPC_partial, OMPC_full}))
     return StmtError();
 
   const OMPFullClause *FullClause =
@@ -15307,7 +15352,7 @@ StmtResult Sema::ActOnOpenMPUnrollDirective(ArrayRef<OMPClause *> Clauses,
   unsigned NumGeneratedLoops = PartialClause ? 1 : 0;
 
   // Delay unrolling to when template is completely instantiated.
-  if (CurContext->isDependentContext())
+  if (SemaRef.CurContext->isDependentContext())
     return OMPUnrollDirective::Create(Context, StartLoc, EndLoc, Clauses, AStmt,
                                       NumGeneratedLoops, nullptr, nullptr);
 
@@ -15412,8 +15457,8 @@ StmtResult Sema::ActOnOpenMPUnrollDirective(ArrayRef<OMPClause *> Clauses,
   assert(Factor > 0 && "Expected positive unroll factor");
   auto MakeFactorExpr = [this, Factor, IVTy, FactorLoc]() {
     return IntegerLiteral::Create(
-        Context, llvm::APInt(Context.getIntWidth(IVTy), Factor), IVTy,
-        FactorLoc);
+        getASTContext(), llvm::APInt(getASTContext().getIntWidth(IVTy), Factor),
+        IVTy, FactorLoc);
   };
 
   // Iteration variable SourceLocations.
@@ -15430,30 +15475,31 @@ StmtResult Sema::ActOnOpenMPUnrollDirective(ArrayRef<OMPClause *> Clauses,
 
   // Create the iteration variable for the unrolled loop.
   VarDecl *OuterIVDecl =
-      buildVarDecl(*this, {}, IVTy, OuterIVName, nullptr, OrigVar);
+      buildVarDecl(SemaRef, {}, IVTy, OuterIVName, nullptr, OrigVar);
   auto MakeOuterRef = [this, OuterIVDecl, IVTy, OrigVarLoc]() {
-    return buildDeclRefExpr(*this, OuterIVDecl, IVTy, OrigVarLoc);
+    return buildDeclRefExpr(SemaRef, OuterIVDecl, IVTy, OrigVarLoc);
   };
 
   // Iteration variable for the inner loop: Reuse the iteration variable created
   // by checkOpenMPLoop.
   auto *InnerIVDecl = cast<VarDecl>(IterationVarRef->getDecl());
-  InnerIVDecl->setDeclName(&PP.getIdentifierTable().get(InnerIVName));
+  InnerIVDecl->setDeclName(&SemaRef.PP.getIdentifierTable().get(InnerIVName));
   auto MakeInnerRef = [this, InnerIVDecl, IVTy, OrigVarLoc]() {
-    return buildDeclRefExpr(*this, InnerIVDecl, IVTy, OrigVarLoc);
+    return buildDeclRefExpr(SemaRef, InnerIVDecl, IVTy, OrigVarLoc);
   };
 
   // Make a copy of the NumIterations expression for each use: By the AST
   // constraints, every expression object in a DeclContext must be unique.
-  CaptureVars CopyTransformer(*this);
+  CaptureVars CopyTransformer(SemaRef);
   auto MakeNumIterations = [&CopyTransformer, &LoopHelper]() -> Expr * {
     return AssertSuccess(
         CopyTransformer.TransformExpr(LoopHelper.NumIterations));
   };
 
   // Inner For init-statement: auto .unroll_inner.iv = .unrolled.iv
-  ExprResult LValueConv = DefaultLvalueConversion(MakeOuterRef());
-  AddInitializerToDecl(InnerIVDecl, LValueConv.get(), /*DirectInit=*/false);
+  ExprResult LValueConv = SemaRef.DefaultLvalueConversion(MakeOuterRef());
+  SemaRef.AddInitializerToDecl(InnerIVDecl, LValueConv.get(),
+                               /*DirectInit=*/false);
   StmtResult InnerInit = new (Context)
       DeclStmt(DeclGroupRef(InnerIVDecl), OrigVarLocBegin, OrigVarLocEnd);
   if (!InnerInit.isUsable())
@@ -15466,28 +15512,30 @@ StmtResult Sema::ActOnOpenMPUnrollDirective(ArrayRef<OMPClause *> Clauses,
   // \endcode
   // This conjunction of two conditions allows ScalarEvolution to derive the
   // maximum trip count of the inner loop.
-  ExprResult EndOfTile = BuildBinOp(CurScope, LoopHelper.Cond->getExprLoc(),
-                                    BO_Add, MakeOuterRef(), MakeFactorExpr());
+  ExprResult EndOfTile =
+      SemaRef.BuildBinOp(CurScope, LoopHelper.Cond->getExprLoc(), BO_Add,
+                         MakeOuterRef(), MakeFactorExpr());
   if (!EndOfTile.isUsable())
     return StmtError();
-  ExprResult InnerCond1 = BuildBinOp(CurScope, LoopHelper.Cond->getExprLoc(),
-                                     BO_LT, MakeInnerRef(), EndOfTile.get());
+  ExprResult InnerCond1 =
+      SemaRef.BuildBinOp(CurScope, LoopHelper.Cond->getExprLoc(), BO_LT,
+                         MakeInnerRef(), EndOfTile.get());
   if (!InnerCond1.isUsable())
     return StmtError();
   ExprResult InnerCond2 =
-      BuildBinOp(CurScope, LoopHelper.Cond->getExprLoc(), BO_LT, MakeInnerRef(),
-                 MakeNumIterations());
+      SemaRef.BuildBinOp(CurScope, LoopHelper.Cond->getExprLoc(), BO_LT,
+                         MakeInnerRef(), MakeNumIterations());
   if (!InnerCond2.isUsable())
     return StmtError();
   ExprResult InnerCond =
-      BuildBinOp(CurScope, LoopHelper.Cond->getExprLoc(), BO_LAnd,
-                 InnerCond1.get(), InnerCond2.get());
+      SemaRef.BuildBinOp(CurScope, LoopHelper.Cond->getExprLoc(), BO_LAnd,
+                         InnerCond1.get(), InnerCond2.get());
   if (!InnerCond.isUsable())
     return StmtError();
 
   // Inner For incr-statement: ++.unroll_inner.iv
-  ExprResult InnerIncr = BuildUnaryOp(CurScope, LoopHelper.Inc->getExprLoc(),
-                                      UO_PreInc, MakeInnerRef());
+  ExprResult InnerIncr = SemaRef.BuildUnaryOp(
+      CurScope, LoopHelper.Inc->getExprLoc(), UO_PreInc, MakeInnerRef());
   if (!InnerIncr.isUsable())
     return StmtError();
 
@@ -15496,7 +15544,7 @@ StmtResult Sema::ActOnOpenMPUnrollDirective(ArrayRef<OMPClause *> Clauses,
   InnerBodyStmts.append(LoopHelper.Updates.begin(), LoopHelper.Updates.end());
   InnerBodyStmts.push_back(Body);
   CompoundStmt *InnerBody =
-      CompoundStmt::Create(Context, InnerBodyStmts, FPOptionsOverride(),
+      CompoundStmt::Create(getASTContext(), InnerBodyStmts, FPOptionsOverride(),
                            Body->getBeginLoc(), Body->getEndLoc());
   ForStmt *InnerFor = new (Context)
       ForStmt(Context, InnerInit.get(), InnerCond.get(), nullptr,
@@ -15518,12 +15566,13 @@ StmtResult Sema::ActOnOpenMPUnrollDirective(ArrayRef<OMPClause *> Clauses,
   LoopHintAttr *UnrollHintAttr =
       LoopHintAttr::CreateImplicit(Context, LoopHintAttr::UnrollCount,
                                    LoopHintAttr::Numeric, MakeFactorExpr());
-  AttributedStmt *InnerUnrolled =
-      AttributedStmt::Create(Context, StartLoc, {UnrollHintAttr}, InnerFor);
+  AttributedStmt *InnerUnrolled = AttributedStmt::Create(
+      getASTContext(), StartLoc, {UnrollHintAttr}, InnerFor);
 
   // Outer For init-statement: auto .unrolled.iv = 0
-  AddInitializerToDecl(
-      OuterIVDecl, ActOnIntegerConstant(LoopHelper.Init->getExprLoc(), 0).get(),
+  SemaRef.AddInitializerToDecl(
+      OuterIVDecl,
+      SemaRef.ActOnIntegerConstant(LoopHelper.Init->getExprLoc(), 0).get(),
       /*DirectInit=*/false);
   StmtResult OuterInit = new (Context)
       DeclStmt(DeclGroupRef(OuterIVDecl), OrigVarLocBegin, OrigVarLocEnd);
@@ -15532,15 +15581,15 @@ StmtResult Sema::ActOnOpenMPUnrollDirective(ArrayRef<OMPClause *> Clauses,
 
   // Outer For cond-expression: .unrolled.iv < NumIterations
   ExprResult OuterConde =
-      BuildBinOp(CurScope, LoopHelper.Cond->getExprLoc(), BO_LT, MakeOuterRef(),
-                 MakeNumIterations());
+      SemaRef.BuildBinOp(CurScope, LoopHelper.Cond->getExprLoc(), BO_LT,
+                         MakeOuterRef(), MakeNumIterations());
   if (!OuterConde.isUsable())
     return StmtError();
 
   // Outer For incr-statement: .unrolled.iv += Factor
   ExprResult OuterIncr =
-      BuildBinOp(CurScope, LoopHelper.Inc->getExprLoc(), BO_AddAssign,
-                 MakeOuterRef(), MakeFactorExpr());
+      SemaRef.BuildBinOp(CurScope, LoopHelper.Inc->getExprLoc(), BO_AddAssign,
+                         MakeOuterRef(), MakeFactorExpr());
   if (!OuterIncr.isUsable())
     return StmtError();
 
@@ -15555,10 +15604,11 @@ StmtResult Sema::ActOnOpenMPUnrollDirective(ArrayRef<OMPClause *> Clauses,
                                     buildPreInits(Context, PreInits));
 }
 
-OMPClause *Sema::ActOnOpenMPSingleExprClause(OpenMPClauseKind Kind, Expr *Expr,
-                                             SourceLocation StartLoc,
-                                             SourceLocation LParenLoc,
-                                             SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPSingleExprClause(OpenMPClauseKind Kind,
+                                                   Expr *Expr,
+                                                   SourceLocation StartLoc,
+                                                   SourceLocation LParenLoc,
+                                                   SourceLocation EndLoc) {
   OMPClause *Res = nullptr;
   switch (Kind) {
   case OMPC_final:
@@ -16646,19 +16696,17 @@ static OpenMPDirectiveKind getOpenMPCaptureRegionForClause(
   return CaptureRegion;
 }
 
-OMPClause *Sema::ActOnOpenMPIfClause(OpenMPDirectiveKind NameModifier,
-                                     Expr *Condition, SourceLocation StartLoc,
-                                     SourceLocation LParenLoc,
-                                     SourceLocation NameModifierLoc,
-                                     SourceLocation ColonLoc,
-                                     SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPIfClause(
+    OpenMPDirectiveKind NameModifier, Expr *Condition, SourceLocation StartLoc,
+    SourceLocation LParenLoc, SourceLocation NameModifierLoc,
+    SourceLocation ColonLoc, SourceLocation EndLoc) {
   Expr *ValExpr = Condition;
   Stmt *HelperValStmt = nullptr;
   OpenMPDirectiveKind CaptureRegion = OMPD_unknown;
   if (!Condition->isValueDependent() && !Condition->isTypeDependent() &&
       !Condition->isInstantiationDependent() &&
       !Condition->containsUnexpandedParameterPack()) {
-    ExprResult Val = CheckBooleanCondition(StartLoc, Condition);
+    ExprResult Val = SemaRef.CheckBooleanCondition(StartLoc, Condition);
     if (Val.isInvalid())
       return nullptr;
 
@@ -16666,57 +16714,60 @@ OMPClause *Sema::ActOnOpenMPIfClause(OpenMPDirectiveKind NameModifier,
 
     OpenMPDirectiveKind DKind = DSAStack->getCurrentDirective();
     CaptureRegion = getOpenMPCaptureRegionForClause(
-        DKind, OMPC_if, LangOpts.OpenMP, NameModifier);
-    if (CaptureRegion != OMPD_unknown && !CurContext->isDependentContext()) {
-      ValExpr = MakeFullExpr(ValExpr).get();
+        DKind, OMPC_if, getLangOpts().OpenMP, NameModifier);
+    if (CaptureRegion != OMPD_unknown &&
+        !SemaRef.CurContext->isDependentContext()) {
+      ValExpr = SemaRef.MakeFullExpr(ValExpr).get();
       llvm::MapVector<const Expr *, DeclRefExpr *> Captures;
-      ValExpr = tryBuildCapture(*this, ValExpr, Captures).get();
-      HelperValStmt = buildPreInits(Context, Captures);
+      ValExpr = tryBuildCapture(SemaRef, ValExpr, Captures).get();
+      HelperValStmt = buildPreInits(getASTContext(), Captures);
     }
   }
 
-  return new (Context)
+  return new (getASTContext())
       OMPIfClause(NameModifier, ValExpr, HelperValStmt, CaptureRegion, StartLoc,
                   LParenLoc, NameModifierLoc, ColonLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPFinalClause(Expr *Condition,
-                                        SourceLocation StartLoc,
-                                        SourceLocation LParenLoc,
-                                        SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPFinalClause(Expr *Condition,
+                                              SourceLocation StartLoc,
+                                              SourceLocation LParenLoc,
+                                              SourceLocation EndLoc) {
   Expr *ValExpr = Condition;
   Stmt *HelperValStmt = nullptr;
   OpenMPDirectiveKind CaptureRegion = OMPD_unknown;
   if (!Condition->isValueDependent() && !Condition->isTypeDependent() &&
       !Condition->isInstantiationDependent() &&
       !Condition->containsUnexpandedParameterPack()) {
-    ExprResult Val = CheckBooleanCondition(StartLoc, Condition);
+    ExprResult Val = SemaRef.CheckBooleanCondition(StartLoc, Condition);
     if (Val.isInvalid())
       return nullptr;
 
-    ValExpr = MakeFullExpr(Val.get()).get();
+    ValExpr = SemaRef.MakeFullExpr(Val.get()).get();
 
     OpenMPDirectiveKind DKind = DSAStack->getCurrentDirective();
-    CaptureRegion =
-        getOpenMPCaptureRegionForClause(DKind, OMPC_final, LangOpts.OpenMP);
-    if (CaptureRegion != OMPD_unknown && !CurContext->isDependentContext()) {
-      ValExpr = MakeFullExpr(ValExpr).get();
+    CaptureRegion = getOpenMPCaptureRegionForClause(DKind, OMPC_final,
+                                                    getLangOpts().OpenMP);
+    if (CaptureRegion != OMPD_unknown &&
+        !SemaRef.CurContext->isDependentContext()) {
+      ValExpr = SemaRef.MakeFullExpr(ValExpr).get();
       llvm::MapVector<const Expr *, DeclRefExpr *> Captures;
-      ValExpr = tryBuildCapture(*this, ValExpr, Captures).get();
-      HelperValStmt = buildPreInits(Context, Captures);
+      ValExpr = tryBuildCapture(SemaRef, ValExpr, Captures).get();
+      HelperValStmt = buildPreInits(getASTContext(), Captures);
     }
   }
 
-  return new (Context) OMPFinalClause(ValExpr, HelperValStmt, CaptureRegion,
-                                      StartLoc, LParenLoc, EndLoc);
+  return new (getASTContext()) OMPFinalClause(
+      ValExpr, HelperValStmt, CaptureRegion, StartLoc, LParenLoc, EndLoc);
 }
 
-ExprResult Sema::PerformOpenMPImplicitIntegerConversion(SourceLocation Loc,
-                                                        Expr *Op) {
+ExprResult
+SemaOpenMP::PerformOpenMPImplicitIntegerConversion(SourceLocation Loc,
+                                                   Expr *Op) {
   if (!Op)
     return ExprError();
 
-  class IntConvertDiagnoser : public ICEConvertDiagnoser {
+  class IntConvertDiagnoser : public Sema::ICEConvertDiagnoser {
   public:
     IntConvertDiagnoser()
         : ICEConvertDiagnoser(/*AllowScopedEnumerations*/ false, false, true) {}
@@ -16752,7 +16803,7 @@ ExprResult Sema::PerformOpenMPImplicitIntegerConversion(SourceLocation Loc,
       llvm_unreachable("conversion functions are permitted");
     }
   } ConvertDiagnoser;
-  return PerformContextualImplicitConversion(Loc, Op, ConvertDiagnoser);
+  return SemaRef.PerformContextualImplicitConversion(Loc, Op, ConvertDiagnoser);
 }
 
 static bool
@@ -16765,7 +16816,7 @@ isNonNegativeIntegerValue(Expr *&ValExpr, Sema &SemaRef, OpenMPClauseKind CKind,
       !ValExpr->isInstantiationDependent()) {
     SourceLocation Loc = ValExpr->getExprLoc();
     ExprResult Value =
-        SemaRef.PerformOpenMPImplicitIntegerConversion(Loc, ValExpr);
+        SemaRef.OpenMP().PerformOpenMPImplicitIntegerConversion(Loc, ValExpr);
     if (Value.isInvalid())
       return false;
 
@@ -16797,37 +16848,37 @@ isNonNegativeIntegerValue(Expr *&ValExpr, Sema &SemaRef, OpenMPClauseKind CKind,
   return true;
 }
 
-OMPClause *Sema::ActOnOpenMPNumThreadsClause(Expr *NumThreads,
-                                             SourceLocation StartLoc,
-                                             SourceLocation LParenLoc,
-                                             SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPNumThreadsClause(Expr *NumThreads,
+                                                   SourceLocation StartLoc,
+                                                   SourceLocation LParenLoc,
+                                                   SourceLocation EndLoc) {
   Expr *ValExpr = NumThreads;
   Stmt *HelperValStmt = nullptr;
 
   // OpenMP [2.5, Restrictions]
   //  The num_threads expression must evaluate to a positive integer value.
-  if (!isNonNegativeIntegerValue(ValExpr, *this, OMPC_num_threads,
+  if (!isNonNegativeIntegerValue(ValExpr, SemaRef, OMPC_num_threads,
                                  /*StrictlyPositive=*/true))
     return nullptr;
 
   OpenMPDirectiveKind DKind = DSAStack->getCurrentDirective();
-  OpenMPDirectiveKind CaptureRegion =
-      getOpenMPCaptureRegionForClause(DKind, OMPC_num_threads, LangOpts.OpenMP);
-  if (CaptureRegion != OMPD_unknown && !CurContext->isDependentContext()) {
-    ValExpr = MakeFullExpr(ValExpr).get();
+  OpenMPDirectiveKind CaptureRegion = getOpenMPCaptureRegionForClause(
+      DKind, OMPC_num_threads, getLangOpts().OpenMP);
+  if (CaptureRegion != OMPD_unknown &&
+      !SemaRef.CurContext->isDependentContext()) {
+    ValExpr = SemaRef.MakeFullExpr(ValExpr).get();
     llvm::MapVector<const Expr *, DeclRefExpr *> Captures;
-    ValExpr = tryBuildCapture(*this, ValExpr, Captures).get();
-    HelperValStmt = buildPreInits(Context, Captures);
+    ValExpr = tryBuildCapture(SemaRef, ValExpr, Captures).get();
+    HelperValStmt = buildPreInits(getASTContext(), Captures);
   }
 
-  return new (Context) OMPNumThreadsClause(
+  return new (getASTContext()) OMPNumThreadsClause(
       ValExpr, HelperValStmt, CaptureRegion, StartLoc, LParenLoc, EndLoc);
 }
 
-ExprResult Sema::VerifyPositiveIntegerConstantInClause(Expr *E,
-                                                       OpenMPClauseKind CKind,
-                                                       bool StrictlyPositive,
-                                                       bool SuppressExprDiags) {
+ExprResult SemaOpenMP::VerifyPositiveIntegerConstantInClause(
+    Expr *E, OpenMPClauseKind CKind, bool StrictlyPositive,
+    bool SuppressExprDiags) {
   if (!E)
     return ExprError();
   if (E->isValueDependent() || E->isTypeDependent() ||
@@ -16841,14 +16892,16 @@ ExprResult Sema::VerifyPositiveIntegerConstantInClause(Expr *E,
     // expression.
     struct SuppressedDiagnoser : public Sema::VerifyICEDiagnoser {
       SuppressedDiagnoser() : VerifyICEDiagnoser(/*Suppress=*/true) {}
-      Sema::SemaDiagnosticBuilder diagnoseNotICE(Sema &S,
-                                                 SourceLocation Loc) override {
+      SemaBase::SemaDiagnosticBuilder
+      diagnoseNotICE(Sema &S, SourceLocation Loc) override {
         llvm_unreachable("Diagnostic suppressed");
       }
     } Diagnoser;
-    ICE = VerifyIntegerConstantExpression(E, &Result, Diagnoser, AllowFold);
+    ICE = SemaRef.VerifyIntegerConstantExpression(E, &Result, Diagnoser,
+                                                  Sema::AllowFold);
   } else {
-    ICE = VerifyIntegerConstantExpression(E, &Result, /*FIXME*/ AllowFold);
+    ICE = SemaRef.VerifyIntegerConstantExpression(E, &Result,
+                                                  /*FIXME*/ Sema::AllowFold);
   }
   if (ICE.isInvalid())
     return ExprError();
@@ -16872,29 +16925,31 @@ ExprResult Sema::VerifyPositiveIntegerConstantInClause(Expr *E,
   return ICE;
 }
 
-OMPClause *Sema::ActOnOpenMPSafelenClause(Expr *Len, SourceLocation StartLoc,
-                                          SourceLocation LParenLoc,
-                                          SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPSafelenClause(Expr *Len,
+                                                SourceLocation StartLoc,
+                                                SourceLocation LParenLoc,
+                                                SourceLocation EndLoc) {
   // OpenMP [2.8.1, simd construct, Description]
   // The parameter of the safelen clause must be a constant
   // positive integer expression.
   ExprResult Safelen = VerifyPositiveIntegerConstantInClause(Len, OMPC_safelen);
   if (Safelen.isInvalid())
     return nullptr;
-  return new (Context)
+  return new (getASTContext())
       OMPSafelenClause(Safelen.get(), StartLoc, LParenLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPSimdlenClause(Expr *Len, SourceLocation StartLoc,
-                                          SourceLocation LParenLoc,
-                                          SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPSimdlenClause(Expr *Len,
+                                                SourceLocation StartLoc,
+                                                SourceLocation LParenLoc,
+                                                SourceLocation EndLoc) {
   // OpenMP [2.8.1, simd construct, Description]
   // The parameter of the simdlen clause must be a constant
   // positive integer expression.
   ExprResult Simdlen = VerifyPositiveIntegerConstantInClause(Len, OMPC_simdlen);
   if (Simdlen.isInvalid())
     return nullptr;
-  return new (Context)
+  return new (getASTContext())
       OMPSimdlenClause(Simdlen.get(), StartLoc, LParenLoc, EndLoc);
 }
 
@@ -16954,31 +17009,32 @@ static bool findOMPAllocatorHandleT(Sema &S, SourceLocation Loc,
   return true;
 }
 
-OMPClause *Sema::ActOnOpenMPAllocatorClause(Expr *A, SourceLocation StartLoc,
-                                            SourceLocation LParenLoc,
-                                            SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPAllocatorClause(Expr *A,
+                                                  SourceLocation StartLoc,
+                                                  SourceLocation LParenLoc,
+                                                  SourceLocation EndLoc) {
   // OpenMP [2.11.3, allocate Directive, Description]
   // allocator is an expression of omp_allocator_handle_t type.
-  if (!findOMPAllocatorHandleT(*this, A->getExprLoc(), DSAStack))
+  if (!findOMPAllocatorHandleT(SemaRef, A->getExprLoc(), DSAStack))
     return nullptr;
 
-  ExprResult Allocator = DefaultLvalueConversion(A);
+  ExprResult Allocator = SemaRef.DefaultLvalueConversion(A);
   if (Allocator.isInvalid())
     return nullptr;
-  Allocator = PerformImplicitConversion(Allocator.get(),
-                                        DSAStack->getOMPAllocatorHandleT(),
-                                        Sema::AA_Initializing,
-                                        /*AllowExplicit=*/true);
+  Allocator = SemaRef.PerformImplicitConversion(
+      Allocator.get(), DSAStack->getOMPAllocatorHandleT(),
+      Sema::AA_Initializing,
+      /*AllowExplicit=*/true);
   if (Allocator.isInvalid())
     return nullptr;
-  return new (Context)
+  return new (getASTContext())
       OMPAllocatorClause(Allocator.get(), StartLoc, LParenLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPCollapseClause(Expr *NumForLoops,
-                                           SourceLocation StartLoc,
-                                           SourceLocation LParenLoc,
-                                           SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPCollapseClause(Expr *NumForLoops,
+                                                 SourceLocation StartLoc,
+                                                 SourceLocation LParenLoc,
+                                                 SourceLocation EndLoc) {
   // OpenMP [2.7.1, loop construct, Description]
   // OpenMP [2.8.1, simd construct, Description]
   // OpenMP [2.9.6, distribute construct, Description]
@@ -16988,14 +17044,14 @@ OMPClause *Sema::ActOnOpenMPCollapseClause(Expr *NumForLoops,
       VerifyPositiveIntegerConstantInClause(NumForLoops, OMPC_collapse);
   if (NumForLoopsResult.isInvalid())
     return nullptr;
-  return new (Context)
+  return new (getASTContext())
       OMPCollapseClause(NumForLoopsResult.get(), StartLoc, LParenLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPOrderedClause(SourceLocation StartLoc,
-                                          SourceLocation EndLoc,
-                                          SourceLocation LParenLoc,
-                                          Expr *NumForLoops) {
+OMPClause *SemaOpenMP::ActOnOpenMPOrderedClause(SourceLocation StartLoc,
+                                                SourceLocation EndLoc,
+                                                SourceLocation LParenLoc,
+                                                Expr *NumForLoops) {
   // OpenMP [2.7.1, loop construct, Description]
   // OpenMP [2.8.1, simd construct, Description]
   // OpenMP [2.9.6, distribute construct, Description]
@@ -17010,14 +17066,15 @@ OMPClause *Sema::ActOnOpenMPOrderedClause(SourceLocation StartLoc,
   } else {
     NumForLoops = nullptr;
   }
-  auto *Clause = OMPOrderedClause::Create(
-      Context, NumForLoops, NumForLoops ? DSAStack->getAssociatedLoops() : 0,
-      StartLoc, LParenLoc, EndLoc);
+  auto *Clause =
+      OMPOrderedClause::Create(getASTContext(), NumForLoops,
+                               NumForLoops ? DSAStack->getAssociatedLoops() : 0,
+                               StartLoc, LParenLoc, EndLoc);
   DSAStack->setOrderedRegion(/*IsOrdered=*/true, NumForLoops, Clause);
   return Clause;
 }
 
-OMPClause *Sema::ActOnOpenMPSimpleClause(
+OMPClause *SemaOpenMP::ActOnOpenMPSimpleClause(
     OpenMPClauseKind Kind, unsigned Argument, SourceLocation ArgumentLoc,
     SourceLocation StartLoc, SourceLocation LParenLoc, SourceLocation EndLoc) {
   OMPClause *Res = nullptr;
@@ -17159,11 +17216,11 @@ getListOfPossibleValues(OpenMPClauseKind K, unsigned First, unsigned Last,
   return std::string(Out.str());
 }
 
-OMPClause *Sema::ActOnOpenMPDefaultClause(DefaultKind Kind,
-                                          SourceLocation KindKwLoc,
-                                          SourceLocation StartLoc,
-                                          SourceLocation LParenLoc,
-                                          SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPDefaultClause(DefaultKind Kind,
+                                                SourceLocation KindKwLoc,
+                                                SourceLocation StartLoc,
+                                                SourceLocation LParenLoc,
+                                                SourceLocation EndLoc) {
   if (Kind == OMP_DEFAULT_unknown) {
     Diag(KindKwLoc, diag::err_omp_unexpected_clause_value)
         << getListOfPossibleValues(OMPC_default, /*First=*/0,
@@ -17189,39 +17246,39 @@ OMPClause *Sema::ActOnOpenMPDefaultClause(DefaultKind Kind,
     llvm_unreachable("DSA unexpected in OpenMP default clause");
   }
 
-  return new (Context)
+  return new (getASTContext())
       OMPDefaultClause(Kind, KindKwLoc, StartLoc, LParenLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPProcBindClause(ProcBindKind Kind,
-                                           SourceLocation KindKwLoc,
-                                           SourceLocation StartLoc,
-                                           SourceLocation LParenLoc,
-                                           SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPProcBindClause(ProcBindKind Kind,
+                                                 SourceLocation KindKwLoc,
+                                                 SourceLocation StartLoc,
+                                                 SourceLocation LParenLoc,
+                                                 SourceLocation EndLoc) {
   if (Kind == OMP_PROC_BIND_unknown) {
     Diag(KindKwLoc, diag::err_omp_unexpected_clause_value)
         << getListOfPossibleValues(OMPC_proc_bind,
                                    /*First=*/unsigned(OMP_PROC_BIND_master),
                                    /*Last=*/
-                                   unsigned(LangOpts.OpenMP > 50
+                                   unsigned(getLangOpts().OpenMP > 50
                                                 ? OMP_PROC_BIND_primary
                                                 : OMP_PROC_BIND_spread) +
                                        1)
         << getOpenMPClauseName(OMPC_proc_bind);
     return nullptr;
   }
-  if (Kind == OMP_PROC_BIND_primary && LangOpts.OpenMP < 51)
+  if (Kind == OMP_PROC_BIND_primary && getLangOpts().OpenMP < 51)
     Diag(KindKwLoc, diag::err_omp_unexpected_clause_value)
         << getListOfPossibleValues(OMPC_proc_bind,
                                    /*First=*/unsigned(OMP_PROC_BIND_master),
                                    /*Last=*/
                                    unsigned(OMP_PROC_BIND_spread) + 1)
         << getOpenMPClauseName(OMPC_proc_bind);
-  return new (Context)
+  return new (getASTContext())
       OMPProcBindClause(Kind, KindKwLoc, StartLoc, LParenLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPAtomicDefaultMemOrderClause(
+OMPClause *SemaOpenMP::ActOnOpenMPAtomicDefaultMemOrderClause(
     OpenMPAtomicDefaultMemOrderClauseKind Kind, SourceLocation KindKwLoc,
     SourceLocation StartLoc, SourceLocation LParenLoc, SourceLocation EndLoc) {
   if (Kind == OMPC_ATOMIC_DEFAULT_MEM_ORDER_unknown) {
@@ -17232,15 +17289,15 @@ OMPClause *Sema::ActOnOpenMPAtomicDefaultMemOrderClause(
         << getOpenMPClauseName(OMPC_atomic_default_mem_order);
     return nullptr;
   }
-  return new (Context) OMPAtomicDefaultMemOrderClause(Kind, KindKwLoc, StartLoc,
-                                                      LParenLoc, EndLoc);
+  return new (getASTContext()) OMPAtomicDefaultMemOrderClause(
+      Kind, KindKwLoc, StartLoc, LParenLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPAtClause(OpenMPAtClauseKind Kind,
-                                     SourceLocation KindKwLoc,
-                                     SourceLocation StartLoc,
-                                     SourceLocation LParenLoc,
-                                     SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPAtClause(OpenMPAtClauseKind Kind,
+                                           SourceLocation KindKwLoc,
+                                           SourceLocation StartLoc,
+                                           SourceLocation LParenLoc,
+                                           SourceLocation EndLoc) {
   if (Kind == OMPC_AT_unknown) {
     Diag(KindKwLoc, diag::err_omp_unexpected_clause_value)
         << getListOfPossibleValues(OMPC_at, /*First=*/0,
@@ -17248,15 +17305,15 @@ OMPClause *Sema::ActOnOpenMPAtClause(OpenMPAtClauseKind Kind,
         << getOpenMPClauseName(OMPC_at);
     return nullptr;
   }
-  return new (Context)
+  return new (getASTContext())
       OMPAtClause(Kind, KindKwLoc, StartLoc, LParenLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPSeverityClause(OpenMPSeverityClauseKind Kind,
-                                           SourceLocation KindKwLoc,
-                                           SourceLocation StartLoc,
-                                           SourceLocation LParenLoc,
-                                           SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPSeverityClause(OpenMPSeverityClauseKind Kind,
+                                                 SourceLocation KindKwLoc,
+                                                 SourceLocation StartLoc,
+                                                 SourceLocation LParenLoc,
+                                                 SourceLocation EndLoc) {
   if (Kind == OMPC_SEVERITY_unknown) {
     Diag(KindKwLoc, diag::err_omp_unexpected_clause_value)
         << getListOfPossibleValues(OMPC_severity, /*First=*/0,
@@ -17264,28 +17321,30 @@ OMPClause *Sema::ActOnOpenMPSeverityClause(OpenMPSeverityClauseKind Kind,
         << getOpenMPClauseName(OMPC_severity);
     return nullptr;
   }
-  return new (Context)
+  return new (getASTContext())
       OMPSeverityClause(Kind, KindKwLoc, StartLoc, LParenLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPMessageClause(Expr *ME, SourceLocation StartLoc,
-                                          SourceLocation LParenLoc,
-                                          SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPMessageClause(Expr *ME,
+                                                SourceLocation StartLoc,
+                                                SourceLocation LParenLoc,
+                                                SourceLocation EndLoc) {
   assert(ME && "NULL expr in Message clause");
   if (!isa<StringLiteral>(ME)) {
     Diag(ME->getBeginLoc(), diag::warn_clause_expected_string)
         << getOpenMPClauseName(OMPC_message);
     return nullptr;
   }
-  return new (Context) OMPMessageClause(ME, StartLoc, LParenLoc, EndLoc);
+  return new (getASTContext())
+      OMPMessageClause(ME, StartLoc, LParenLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPOrderClause(
+OMPClause *SemaOpenMP::ActOnOpenMPOrderClause(
     OpenMPOrderClauseModifier Modifier, OpenMPOrderClauseKind Kind,
     SourceLocation StartLoc, SourceLocation LParenLoc, SourceLocation MLoc,
     SourceLocation KindLoc, SourceLocation EndLoc) {
   if (Kind != OMPC_ORDER_concurrent ||
-      (LangOpts.OpenMP < 51 && MLoc.isValid())) {
+      (getLangOpts().OpenMP < 51 && MLoc.isValid())) {
     // Kind should be concurrent,
     // Modifiers introduced in OpenMP 5.1
     static_assert(OMPC_ORDER_unknown > 0,
@@ -17298,7 +17357,7 @@ OMPClause *Sema::ActOnOpenMPOrderClause(
         << getOpenMPClauseName(OMPC_order);
     return nullptr;
   }
-  if (LangOpts.OpenMP >= 51) {
+  if (getLangOpts().OpenMP >= 51) {
     if (Modifier == OMPC_ORDER_MODIFIER_unknown && MLoc.isValid()) {
       Diag(MLoc, diag::err_omp_unexpected_clause_value)
           << getListOfPossibleValues(OMPC_order,
@@ -17315,21 +17374,21 @@ OMPClause *Sema::ActOnOpenMPOrderClause(
       }
     }
   }
-  return new (Context) OMPOrderClause(Kind, KindLoc, StartLoc, LParenLoc,
-                                      EndLoc, Modifier, MLoc);
+  return new (getASTContext()) OMPOrderClause(
+      Kind, KindLoc, StartLoc, LParenLoc, EndLoc, Modifier, MLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPUpdateClause(OpenMPDependClauseKind Kind,
-                                         SourceLocation KindKwLoc,
-                                         SourceLocation StartLoc,
-                                         SourceLocation LParenLoc,
-                                         SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPUpdateClause(OpenMPDependClauseKind Kind,
+                                               SourceLocation KindKwLoc,
+                                               SourceLocation StartLoc,
+                                               SourceLocation LParenLoc,
+                                               SourceLocation EndLoc) {
   if (Kind == OMPC_DEPEND_unknown || Kind == OMPC_DEPEND_source ||
       Kind == OMPC_DEPEND_sink || Kind == OMPC_DEPEND_depobj) {
     SmallVector<unsigned> Except = {
         OMPC_DEPEND_source, OMPC_DEPEND_sink, OMPC_DEPEND_depobj,
         OMPC_DEPEND_outallmemory, OMPC_DEPEND_inoutallmemory};
-    if (LangOpts.OpenMP < 51)
+    if (getLangOpts().OpenMP < 51)
       Except.push_back(OMPC_DEPEND_inoutset);
     Diag(KindKwLoc, diag::err_omp_unexpected_clause_value)
         << getListOfPossibleValues(OMPC_depend, /*First=*/0,
@@ -17337,14 +17396,14 @@ OMPClause *Sema::ActOnOpenMPUpdateClause(OpenMPDependClauseKind Kind,
         << getOpenMPClauseName(OMPC_update);
     return nullptr;
   }
-  return OMPUpdateClause::Create(Context, StartLoc, LParenLoc, KindKwLoc, Kind,
-                                 EndLoc);
+  return OMPUpdateClause::Create(getASTContext(), StartLoc, LParenLoc,
+                                 KindKwLoc, Kind, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPSizesClause(ArrayRef<Expr *> SizeExprs,
-                                        SourceLocation StartLoc,
-                                        SourceLocation LParenLoc,
-                                        SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPSizesClause(ArrayRef<Expr *> SizeExprs,
+                                              SourceLocation StartLoc,
+                                              SourceLocation LParenLoc,
+                                              SourceLocation EndLoc) {
   for (Expr *SizeExpr : SizeExprs) {
     ExprResult NumForLoopsResult = VerifyPositiveIntegerConstantInClause(
         SizeExpr, OMPC_sizes, /*StrictlyPositive=*/true);
@@ -17353,19 +17412,19 @@ OMPClause *Sema::ActOnOpenMPSizesClause(ArrayRef<Expr *> SizeExprs,
   }
 
   DSAStack->setAssociatedLoops(SizeExprs.size());
-  return OMPSizesClause::Create(Context, StartLoc, LParenLoc, EndLoc,
+  return OMPSizesClause::Create(getASTContext(), StartLoc, LParenLoc, EndLoc,
                                 SizeExprs);
 }
 
-OMPClause *Sema::ActOnOpenMPFullClause(SourceLocation StartLoc,
-                                       SourceLocation EndLoc) {
-  return OMPFullClause::Create(Context, StartLoc, EndLoc);
+OMPClause *SemaOpenMP::ActOnOpenMPFullClause(SourceLocation StartLoc,
+                                             SourceLocation EndLoc) {
+  return OMPFullClause::Create(getASTContext(), StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPPartialClause(Expr *FactorExpr,
-                                          SourceLocation StartLoc,
-                                          SourceLocation LParenLoc,
-                                          SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPPartialClause(Expr *FactorExpr,
+                                                SourceLocation StartLoc,
+                                                SourceLocation LParenLoc,
+                                                SourceLocation EndLoc) {
   if (FactorExpr) {
     // If an argument is specified, it must be a constant (or an unevaluated
     // template expression).
@@ -17376,22 +17435,22 @@ OMPClause *Sema::ActOnOpenMPPartialClause(Expr *FactorExpr,
     FactorExpr = FactorResult.get();
   }
 
-  return OMPPartialClause::Create(Context, StartLoc, LParenLoc, EndLoc,
+  return OMPPartialClause::Create(getASTContext(), StartLoc, LParenLoc, EndLoc,
                                   FactorExpr);
 }
 
-OMPClause *Sema::ActOnOpenMPAlignClause(Expr *A, SourceLocation StartLoc,
-                                        SourceLocation LParenLoc,
-                                        SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPAlignClause(Expr *A, SourceLocation StartLoc,
+                                              SourceLocation LParenLoc,
+                                              SourceLocation EndLoc) {
   ExprResult AlignVal;
   AlignVal = VerifyPositiveIntegerConstantInClause(A, OMPC_align);
   if (AlignVal.isInvalid())
     return nullptr;
-  return OMPAlignClause::Create(Context, AlignVal.get(), StartLoc, LParenLoc,
-                                EndLoc);
+  return OMPAlignClause::Create(getASTContext(), AlignVal.get(), StartLoc,
+                                LParenLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPSingleExprWithArgClause(
+OMPClause *SemaOpenMP::ActOnOpenMPSingleExprWithArgClause(
     OpenMPClauseKind Kind, ArrayRef<unsigned> Argument, Expr *Expr,
     SourceLocation StartLoc, SourceLocation LParenLoc,
     ArrayRef<SourceLocation> ArgumentLoc, SourceLocation DelimLoc,
@@ -17559,13 +17618,13 @@ static bool checkScheduleModifiers(Sema &S, OpenMPScheduleClauseModifier M1,
   return false;
 }
 
-OMPClause *Sema::ActOnOpenMPScheduleClause(
+OMPClause *SemaOpenMP::ActOnOpenMPScheduleClause(
     OpenMPScheduleClauseModifier M1, OpenMPScheduleClauseModifier M2,
     OpenMPScheduleClauseKind Kind, Expr *ChunkSize, SourceLocation StartLoc,
     SourceLocation LParenLoc, SourceLocation M1Loc, SourceLocation M2Loc,
     SourceLocation KindLoc, SourceLocation CommaLoc, SourceLocation EndLoc) {
-  if (checkScheduleModifiers(*this, M1, M2, M1Loc, M2Loc) ||
-      checkScheduleModifiers(*this, M2, M1, M2Loc, M1Loc))
+  if (checkScheduleModifiers(SemaRef, M1, M2, M1Loc, M2Loc) ||
+      checkScheduleModifiers(SemaRef, M2, M1, M2Loc, M1Loc))
     return nullptr;
   // OpenMP, 2.7.1, Loop Construct, Restrictions
   // Either the monotonic modifier or the nonmonotonic modifier can be specified
@@ -17599,7 +17658,7 @@ OMPClause *Sema::ActOnOpenMPScheduleClause(
   // The nonmonotonic modifier can only be specified with schedule(dynamic) or
   // schedule(guided).
   // OpenMP 5.0 does not have this restriction.
-  if (LangOpts.OpenMP < 50 &&
+  if (getLangOpts().OpenMP < 50 &&
       (M1 == OMPC_SCHEDULE_MODIFIER_nonmonotonic ||
        M2 == OMPC_SCHEDULE_MODIFIER_nonmonotonic) &&
       Kind != OMPC_SCHEDULE_dynamic && Kind != OMPC_SCHEDULE_guided) {
@@ -17625,7 +17684,7 @@ OMPClause *Sema::ActOnOpenMPScheduleClause(
       //  chunk_size must be a loop invariant integer expression with a positive
       //  value.
       if (std::optional<llvm::APSInt> Result =
-              ValExpr->getIntegerConstantExpr(Context)) {
+              ValExpr->getIntegerConstantExpr(getASTContext())) {
         if (Result->isSigned() && !Result->isStrictlyPositive()) {
           Diag(ChunkSizeLoc, diag::err_omp_negative_expression_in_clause)
               << "schedule" << 1 << ChunkSize->getSourceRange();
@@ -17633,24 +17692,24 @@ OMPClause *Sema::ActOnOpenMPScheduleClause(
         }
       } else if (getOpenMPCaptureRegionForClause(
                      DSAStack->getCurrentDirective(), OMPC_schedule,
-                     LangOpts.OpenMP) != OMPD_unknown &&
-                 !CurContext->isDependentContext()) {
-        ValExpr = MakeFullExpr(ValExpr).get();
+                     getLangOpts().OpenMP) != OMPD_unknown &&
+                 !SemaRef.CurContext->isDependentContext()) {
+        ValExpr = SemaRef.MakeFullExpr(ValExpr).get();
         llvm::MapVector<const Expr *, DeclRefExpr *> Captures;
-        ValExpr = tryBuildCapture(*this, ValExpr, Captures).get();
-        HelperValStmt = buildPreInits(Context, Captures);
+        ValExpr = tryBuildCapture(SemaRef, ValExpr, Captures).get();
+        HelperValStmt = buildPreInits(getASTContext(), Captures);
       }
     }
   }
 
-  return new (Context)
+  return new (getASTContext())
       OMPScheduleClause(StartLoc, LParenLoc, KindLoc, CommaLoc, EndLoc, Kind,
                         ValExpr, HelperValStmt, M1, M1Loc, M2, M2Loc);
 }
 
-OMPClause *Sema::ActOnOpenMPClause(OpenMPClauseKind Kind,
-                                   SourceLocation StartLoc,
-                                   SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPClause(OpenMPClauseKind Kind,
+                                         SourceLocation StartLoc,
+                                         SourceLocation EndLoc) {
   OMPClause *Res = nullptr;
   switch (Kind) {
   case OMPC_ordered:
@@ -17804,134 +17863,138 @@ OMPClause *Sema::ActOnOpenMPClause(OpenMPClauseKind Kind,
   return Res;
 }
 
-OMPClause *Sema::ActOnOpenMPNowaitClause(SourceLocation StartLoc,
-                                         SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPNowaitClause(SourceLocation StartLoc,
+                                               SourceLocation EndLoc) {
   DSAStack->setNowaitRegion();
-  return new (Context) OMPNowaitClause(StartLoc, EndLoc);
+  return new (getASTContext()) OMPNowaitClause(StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPUntiedClause(SourceLocation StartLoc,
-                                         SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPUntiedClause(SourceLocation StartLoc,
+                                               SourceLocation EndLoc) {
   DSAStack->setUntiedRegion();
-  return new (Context) OMPUntiedClause(StartLoc, EndLoc);
+  return new (getASTContext()) OMPUntiedClause(StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPMergeableClause(SourceLocation StartLoc,
-                                            SourceLocation EndLoc) {
-  return new (Context) OMPMergeableClause(StartLoc, EndLoc);
+OMPClause *SemaOpenMP::ActOnOpenMPMergeableClause(SourceLocation StartLoc,
+                                                  SourceLocation EndLoc) {
+  return new (getASTContext()) OMPMergeableClause(StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPReadClause(SourceLocation StartLoc,
-                                       SourceLocation EndLoc) {
-  return new (Context) OMPReadClause(StartLoc, EndLoc);
+OMPClause *SemaOpenMP::ActOnOpenMPReadClause(SourceLocation StartLoc,
+                                             SourceLocation EndLoc) {
+  return new (getASTContext()) OMPReadClause(StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPWriteClause(SourceLocation StartLoc,
-                                        SourceLocation EndLoc) {
-  return new (Context) OMPWriteClause(StartLoc, EndLoc);
+OMPClause *SemaOpenMP::ActOnOpenMPWriteClause(SourceLocation StartLoc,
+                                              SourceLocation EndLoc) {
+  return new (getASTContext()) OMPWriteClause(StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPUpdateClause(SourceLocation StartLoc,
-                                         SourceLocation EndLoc) {
-  return OMPUpdateClause::Create(Context, StartLoc, EndLoc);
+OMPClause *SemaOpenMP::ActOnOpenMPUpdateClause(SourceLocation StartLoc,
+                                               SourceLocation EndLoc) {
+  return OMPUpdateClause::Create(getASTContext(), StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPCaptureClause(SourceLocation StartLoc,
-                                          SourceLocation EndLoc) {
-  return new (Context) OMPCaptureClause(StartLoc, EndLoc);
+OMPClause *SemaOpenMP::ActOnOpenMPCaptureClause(SourceLocation StartLoc,
+                                                SourceLocation EndLoc) {
+  return new (getASTContext()) OMPCaptureClause(StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPCompareClause(SourceLocation StartLoc,
-                                          SourceLocation EndLoc) {
-  return new (Context) OMPCompareClause(StartLoc, EndLoc);
+OMPClause *SemaOpenMP::ActOnOpenMPCompareClause(SourceLocation StartLoc,
+                                                SourceLocation EndLoc) {
+  return new (getASTContext()) OMPCompareClause(StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPFailClause(SourceLocation StartLoc,
-                                       SourceLocation EndLoc) {
-  return new (Context) OMPFailClause(StartLoc, EndLoc);
+OMPClause *SemaOpenMP::ActOnOpenMPFailClause(SourceLocation StartLoc,
+                                             SourceLocation EndLoc) {
+  return new (getASTContext()) OMPFailClause(StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPFailClause(
-      OpenMPClauseKind Parameter, SourceLocation KindLoc,
-      SourceLocation StartLoc, SourceLocation LParenLoc,
-      SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPFailClause(OpenMPClauseKind Parameter,
+                                             SourceLocation KindLoc,
+                                             SourceLocation StartLoc,
+                                             SourceLocation LParenLoc,
+                                             SourceLocation EndLoc) {
 
   if (!checkFailClauseParameter(Parameter)) {
     Diag(KindLoc, diag::err_omp_atomic_fail_wrong_or_no_clauses);
     return nullptr;
   }
-  return new (Context)
+  return new (getASTContext())
       OMPFailClause(Parameter, KindLoc, StartLoc, LParenLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPSeqCstClause(SourceLocation StartLoc,
-                                         SourceLocation EndLoc) {
-  return new (Context) OMPSeqCstClause(StartLoc, EndLoc);
+OMPClause *SemaOpenMP::ActOnOpenMPSeqCstClause(SourceLocation StartLoc,
+                                               SourceLocation EndLoc) {
+  return new (getASTContext()) OMPSeqCstClause(StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPAcqRelClause(SourceLocation StartLoc,
-                                         SourceLocation EndLoc) {
-  return new (Context) OMPAcqRelClause(StartLoc, EndLoc);
+OMPClause *SemaOpenMP::ActOnOpenMPAcqRelClause(SourceLocation StartLoc,
+                                               SourceLocation EndLoc) {
+  return new (getASTContext()) OMPAcqRelClause(StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPAcquireClause(SourceLocation StartLoc,
-                                          SourceLocation EndLoc) {
-  return new (Context) OMPAcquireClause(StartLoc, EndLoc);
+OMPClause *SemaOpenMP::ActOnOpenMPAcquireClause(SourceLocation StartLoc,
+                                                SourceLocation EndLoc) {
+  return new (getASTContext()) OMPAcquireClause(StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPReleaseClause(SourceLocation StartLoc,
-                                          SourceLocation EndLoc) {
-  return new (Context) OMPReleaseClause(StartLoc, EndLoc);
+OMPClause *SemaOpenMP::ActOnOpenMPReleaseClause(SourceLocation StartLoc,
+                                                SourceLocation EndLoc) {
+  return new (getASTContext()) OMPReleaseClause(StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPRelaxedClause(SourceLocation StartLoc,
-                                          SourceLocation EndLoc) {
-  return new (Context) OMPRelaxedClause(StartLoc, EndLoc);
+OMPClause *SemaOpenMP::ActOnOpenMPRelaxedClause(SourceLocation StartLoc,
+                                                SourceLocation EndLoc) {
+  return new (getASTContext()) OMPRelaxedClause(StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPWeakClause(SourceLocation StartLoc,
-                                       SourceLocation EndLoc) {
-  return new (Context) OMPWeakClause(StartLoc, EndLoc);
+OMPClause *SemaOpenMP::ActOnOpenMPWeakClause(SourceLocation StartLoc,
+                                             SourceLocation EndLoc) {
+  return new (getASTContext()) OMPWeakClause(StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPThreadsClause(SourceLocation StartLoc,
-                                          SourceLocation EndLoc) {
-  return new (Context) OMPThreadsClause(StartLoc, EndLoc);
+OMPClause *SemaOpenMP::ActOnOpenMPThreadsClause(SourceLocation StartLoc,
+                                                SourceLocation EndLoc) {
+  return new (getASTContext()) OMPThreadsClause(StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPSIMDClause(SourceLocation StartLoc,
-                                       SourceLocation EndLoc) {
-  return new (Context) OMPSIMDClause(StartLoc, EndLoc);
+OMPClause *SemaOpenMP::ActOnOpenMPSIMDClause(SourceLocation StartLoc,
+                                             SourceLocation EndLoc) {
+  return new (getASTContext()) OMPSIMDClause(StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPNogroupClause(SourceLocation StartLoc,
-                                          SourceLocation EndLoc) {
-  return new (Context) OMPNogroupClause(StartLoc, EndLoc);
+OMPClause *SemaOpenMP::ActOnOpenMPNogroupClause(SourceLocation StartLoc,
+                                                SourceLocation EndLoc) {
+  return new (getASTContext()) OMPNogroupClause(StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPUnifiedAddressClause(SourceLocation StartLoc,
-                                                 SourceLocation EndLoc) {
-  return new (Context) OMPUnifiedAddressClause(StartLoc, EndLoc);
+OMPClause *SemaOpenMP::ActOnOpenMPUnifiedAddressClause(SourceLocation StartLoc,
+                                                       SourceLocation EndLoc) {
+  return new (getASTContext()) OMPUnifiedAddressClause(StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPUnifiedSharedMemoryClause(SourceLocation StartLoc,
-                                                      SourceLocation EndLoc) {
-  return new (Context) OMPUnifiedSharedMemoryClause(StartLoc, EndLoc);
+OMPClause *
+SemaOpenMP::ActOnOpenMPUnifiedSharedMemoryClause(SourceLocation StartLoc,
+                                                 SourceLocation EndLoc) {
+  return new (getASTContext()) OMPUnifiedSharedMemoryClause(StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPReverseOffloadClause(SourceLocation StartLoc,
-                                                 SourceLocation EndLoc) {
-  return new (Context) OMPReverseOffloadClause(StartLoc, EndLoc);
+OMPClause *SemaOpenMP::ActOnOpenMPReverseOffloadClause(SourceLocation StartLoc,
+                                                       SourceLocation EndLoc) {
+  return new (getASTContext()) OMPReverseOffloadClause(StartLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPDynamicAllocatorsClause(SourceLocation StartLoc,
-                                                    SourceLocation EndLoc) {
-  return new (Context) OMPDynamicAllocatorsClause(StartLoc, EndLoc);
+OMPClause *
+SemaOpenMP::ActOnOpenMPDynamicAllocatorsClause(SourceLocation StartLoc,
+                                               SourceLocation EndLoc) {
+  return new (getASTContext()) OMPDynamicAllocatorsClause(StartLoc, EndLoc);
 }
 
-StmtResult Sema::ActOnOpenMPInteropDirective(ArrayRef<OMPClause *> Clauses,
-                                             SourceLocation StartLoc,
-                                             SourceLocation EndLoc) {
+StmtResult
+SemaOpenMP::ActOnOpenMPInteropDirective(ArrayRef<OMPClause *> Clauses,
+                                        SourceLocation StartLoc,
+                                        SourceLocation EndLoc) {
 
   // OpenMP 5.1 [2.15.1, interop Construct, Restrictions]
   // At least one action-clause must appear on a directive.
@@ -17981,13 +18044,13 @@ StmtResult Sema::ActOnOpenMPInteropDirective(ArrayRef<OMPClause *> Clauses,
 
     if (ClauseKind == OMPC_init) {
       auto *E = cast<OMPInitClause>(C)->getInteropVar();
-      DeclResult = getPrivateItem(*this, E, ELoc, ERange);
+      DeclResult = getPrivateItem(SemaRef, E, ELoc, ERange);
     } else if (ClauseKind == OMPC_use) {
       auto *E = cast<OMPUseClause>(C)->getInteropVar();
-      DeclResult = getPrivateItem(*this, E, ELoc, ERange);
+      DeclResult = getPrivateItem(SemaRef, E, ELoc, ERange);
     } else if (ClauseKind == OMPC_destroy) {
       auto *E = cast<OMPDestroyClause>(C)->getInteropVar();
-      DeclResult = getPrivateItem(*this, E, ELoc, ERange);
+      DeclResult = getPrivateItem(SemaRef, E, ELoc, ERange);
     }
 
     if (DeclResult.first) {
@@ -17999,7 +18062,8 @@ StmtResult Sema::ActOnOpenMPInteropDirective(ArrayRef<OMPClause *> Clauses,
     }
   }
 
-  return OMPInteropDirective::Create(Context, StartLoc, EndLoc, Clauses);
+  return OMPInteropDirective::Create(getASTContext(), StartLoc, EndLoc,
+                                     Clauses);
 }
 
 static bool isValidInteropVariable(Sema &SemaRef, Expr *InteropVarExpr,
@@ -18059,12 +18123,11 @@ static bool isValidInteropVariable(Sema &SemaRef, Expr *InteropVarExpr,
   return true;
 }
 
-OMPClause *
-Sema::ActOnOpenMPInitClause(Expr *InteropVar, OMPInteropInfo &InteropInfo,
-                            SourceLocation StartLoc, SourceLocation LParenLoc,
-                            SourceLocation VarLoc, SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPInitClause(
+    Expr *InteropVar, OMPInteropInfo &InteropInfo, SourceLocation StartLoc,
+    SourceLocation LParenLoc, SourceLocation VarLoc, SourceLocation EndLoc) {
 
-  if (!isValidInteropVariable(*this, InteropVar, VarLoc, OMPC_init))
+  if (!isValidInteropVariable(SemaRef, InteropVar, VarLoc, OMPC_init))
     return nullptr;
 
   // Check prefer_type values.  These foreign-runtime-id values are either
@@ -18073,7 +18136,7 @@ Sema::ActOnOpenMPInitClause(Expr *InteropVar, OMPInteropInfo &InteropInfo,
     if (E->isValueDependent() || E->isTypeDependent() ||
         E->isInstantiationDependent() || E->containsUnexpandedParameterPack())
       continue;
-    if (E->isIntegerConstantExpr(Context))
+    if (E->isIntegerConstantExpr(getASTContext()))
       continue;
     if (isa<StringLiteral>(E))
       continue;
@@ -18081,28 +18144,29 @@ Sema::ActOnOpenMPInitClause(Expr *InteropVar, OMPInteropInfo &InteropInfo,
     return nullptr;
   }
 
-  return OMPInitClause::Create(Context, InteropVar, InteropInfo, StartLoc,
-                               LParenLoc, VarLoc, EndLoc);
+  return OMPInitClause::Create(getASTContext(), InteropVar, InteropInfo,
+                               StartLoc, LParenLoc, VarLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPUseClause(Expr *InteropVar, SourceLocation StartLoc,
-                                      SourceLocation LParenLoc,
-                                      SourceLocation VarLoc,
-                                      SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPUseClause(Expr *InteropVar,
+                                            SourceLocation StartLoc,
+                                            SourceLocation LParenLoc,
+                                            SourceLocation VarLoc,
+                                            SourceLocation EndLoc) {
 
-  if (!isValidInteropVariable(*this, InteropVar, VarLoc, OMPC_use))
+  if (!isValidInteropVariable(SemaRef, InteropVar, VarLoc, OMPC_use))
     return nullptr;
 
-  return new (Context)
+  return new (getASTContext())
       OMPUseClause(InteropVar, StartLoc, LParenLoc, VarLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPDestroyClause(Expr *InteropVar,
-                                          SourceLocation StartLoc,
-                                          SourceLocation LParenLoc,
-                                          SourceLocation VarLoc,
-                                          SourceLocation EndLoc) {
-  if (!InteropVar && LangOpts.OpenMP >= 52 &&
+OMPClause *SemaOpenMP::ActOnOpenMPDestroyClause(Expr *InteropVar,
+                                                SourceLocation StartLoc,
+                                                SourceLocation LParenLoc,
+                                                SourceLocation VarLoc,
+                                                SourceLocation EndLoc) {
+  if (!InteropVar && getLangOpts().OpenMP >= 52 &&
       DSAStack->getCurrentDirective() == OMPD_depobj) {
     Diag(StartLoc, diag::err_omp_expected_clause_argument)
         << getOpenMPClauseName(OMPC_destroy)
@@ -18110,100 +18174,103 @@ OMPClause *Sema::ActOnOpenMPDestroyClause(Expr *InteropVar,
     return nullptr;
   }
   if (InteropVar &&
-      !isValidInteropVariable(*this, InteropVar, VarLoc, OMPC_destroy))
+      !isValidInteropVariable(SemaRef, InteropVar, VarLoc, OMPC_destroy))
     return nullptr;
 
-  return new (Context)
+  return new (getASTContext())
       OMPDestroyClause(InteropVar, StartLoc, LParenLoc, VarLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPNovariantsClause(Expr *Condition,
-                                             SourceLocation StartLoc,
-                                             SourceLocation LParenLoc,
-                                             SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPNovariantsClause(Expr *Condition,
+                                                   SourceLocation StartLoc,
+                                                   SourceLocation LParenLoc,
+                                                   SourceLocation EndLoc) {
   Expr *ValExpr = Condition;
   Stmt *HelperValStmt = nullptr;
   OpenMPDirectiveKind CaptureRegion = OMPD_unknown;
   if (!Condition->isValueDependent() && !Condition->isTypeDependent() &&
       !Condition->isInstantiationDependent() &&
       !Condition->containsUnexpandedParameterPack()) {
-    ExprResult Val = CheckBooleanCondition(StartLoc, Condition);
+    ExprResult Val = SemaRef.CheckBooleanCondition(StartLoc, Condition);
     if (Val.isInvalid())
       return nullptr;
 
-    ValExpr = MakeFullExpr(Val.get()).get();
+    ValExpr = SemaRef.MakeFullExpr(Val.get()).get();
 
     OpenMPDirectiveKind DKind = DSAStack->getCurrentDirective();
     CaptureRegion = getOpenMPCaptureRegionForClause(DKind, OMPC_novariants,
-                                                    LangOpts.OpenMP);
-    if (CaptureRegion != OMPD_unknown && !CurContext->isDependentContext()) {
-      ValExpr = MakeFullExpr(ValExpr).get();
+                                                    getLangOpts().OpenMP);
+    if (CaptureRegion != OMPD_unknown &&
+        !SemaRef.CurContext->isDependentContext()) {
+      ValExpr = SemaRef.MakeFullExpr(ValExpr).get();
       llvm::MapVector<const Expr *, DeclRefExpr *> Captures;
-      ValExpr = tryBuildCapture(*this, ValExpr, Captures).get();
-      HelperValStmt = buildPreInits(Context, Captures);
+      ValExpr = tryBuildCapture(SemaRef, ValExpr, Captures).get();
+      HelperValStmt = buildPreInits(getASTContext(), Captures);
     }
   }
 
-  return new (Context) OMPNovariantsClause(
+  return new (getASTContext()) OMPNovariantsClause(
       ValExpr, HelperValStmt, CaptureRegion, StartLoc, LParenLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPNocontextClause(Expr *Condition,
-                                            SourceLocation StartLoc,
-                                            SourceLocation LParenLoc,
-                                            SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPNocontextClause(Expr *Condition,
+                                                  SourceLocation StartLoc,
+                                                  SourceLocation LParenLoc,
+                                                  SourceLocation EndLoc) {
   Expr *ValExpr = Condition;
   Stmt *HelperValStmt = nullptr;
   OpenMPDirectiveKind CaptureRegion = OMPD_unknown;
   if (!Condition->isValueDependent() && !Condition->isTypeDependent() &&
       !Condition->isInstantiationDependent() &&
       !Condition->containsUnexpandedParameterPack()) {
-    ExprResult Val = CheckBooleanCondition(StartLoc, Condition);
+    ExprResult Val = SemaRef.CheckBooleanCondition(StartLoc, Condition);
     if (Val.isInvalid())
       return nullptr;
 
-    ValExpr = MakeFullExpr(Val.get()).get();
+    ValExpr = SemaRef.MakeFullExpr(Val.get()).get();
 
     OpenMPDirectiveKind DKind = DSAStack->getCurrentDirective();
-    CaptureRegion =
-        getOpenMPCaptureRegionForClause(DKind, OMPC_nocontext, LangOpts.OpenMP);
-    if (CaptureRegion != OMPD_unknown && !CurContext->isDependentContext()) {
-      ValExpr = MakeFullExpr(ValExpr).get();
+    CaptureRegion = getOpenMPCaptureRegionForClause(DKind, OMPC_nocontext,
+                                                    getLangOpts().OpenMP);
+    if (CaptureRegion != OMPD_unknown &&
+        !SemaRef.CurContext->isDependentContext()) {
+      ValExpr = SemaRef.MakeFullExpr(ValExpr).get();
       llvm::MapVector<const Expr *, DeclRefExpr *> Captures;
-      ValExpr = tryBuildCapture(*this, ValExpr, Captures).get();
-      HelperValStmt = buildPreInits(Context, Captures);
+      ValExpr = tryBuildCapture(SemaRef, ValExpr, Captures).get();
+      HelperValStmt = buildPreInits(getASTContext(), Captures);
     }
   }
 
-  return new (Context) OMPNocontextClause(ValExpr, HelperValStmt, CaptureRegion,
-                                          StartLoc, LParenLoc, EndLoc);
+  return new (getASTContext()) OMPNocontextClause(
+      ValExpr, HelperValStmt, CaptureRegion, StartLoc, LParenLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPFilterClause(Expr *ThreadID,
-                                         SourceLocation StartLoc,
-                                         SourceLocation LParenLoc,
-                                         SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPFilterClause(Expr *ThreadID,
+                                               SourceLocation StartLoc,
+                                               SourceLocation LParenLoc,
+                                               SourceLocation EndLoc) {
   Expr *ValExpr = ThreadID;
   Stmt *HelperValStmt = nullptr;
 
   OpenMPDirectiveKind DKind = DSAStack->getCurrentDirective();
   OpenMPDirectiveKind CaptureRegion =
-      getOpenMPCaptureRegionForClause(DKind, OMPC_filter, LangOpts.OpenMP);
-  if (CaptureRegion != OMPD_unknown && !CurContext->isDependentContext()) {
-    ValExpr = MakeFullExpr(ValExpr).get();
+      getOpenMPCaptureRegionForClause(DKind, OMPC_filter, getLangOpts().OpenMP);
+  if (CaptureRegion != OMPD_unknown &&
+      !SemaRef.CurContext->isDependentContext()) {
+    ValExpr = SemaRef.MakeFullExpr(ValExpr).get();
     llvm::MapVector<const Expr *, DeclRefExpr *> Captures;
-    ValExpr = tryBuildCapture(*this, ValExpr, Captures).get();
-    HelperValStmt = buildPreInits(Context, Captures);
+    ValExpr = tryBuildCapture(SemaRef, ValExpr, Captures).get();
+    HelperValStmt = buildPreInits(getASTContext(), Captures);
   }
 
-  return new (Context) OMPFilterClause(ValExpr, HelperValStmt, CaptureRegion,
-                                       StartLoc, LParenLoc, EndLoc);
+  return new (getASTContext()) OMPFilterClause(
+      ValExpr, HelperValStmt, CaptureRegion, StartLoc, LParenLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPVarListClause(OpenMPClauseKind Kind,
-                                          ArrayRef<Expr *> VarList,
-                                          const OMPVarListLocTy &Locs,
-                                          OpenMPVarListDataTy &Data) {
+OMPClause *SemaOpenMP::ActOnOpenMPVarListClause(OpenMPClauseKind Kind,
+                                                ArrayRef<Expr *> VarList,
+                                                const OMPVarListLocTy &Locs,
+                                                OpenMPVarListDataTy &Data) {
   SourceLocation StartLoc = Locs.StartLoc;
   SourceLocation LParenLoc = Locs.LParenLoc;
   SourceLocation EndLoc = Locs.EndLoc;
@@ -18395,29 +18462,30 @@ OMPClause *Sema::ActOnOpenMPVarListClause(OpenMPClauseKind Kind,
   return Res;
 }
 
-ExprResult Sema::getOpenMPCapturedExpr(VarDecl *Capture, ExprValueKind VK,
-                                       ExprObjectKind OK, SourceLocation Loc) {
-  ExprResult Res = BuildDeclRefExpr(
+ExprResult SemaOpenMP::getOpenMPCapturedExpr(VarDecl *Capture, ExprValueKind VK,
+                                             ExprObjectKind OK,
+                                             SourceLocation Loc) {
+  ExprResult Res = SemaRef.BuildDeclRefExpr(
       Capture, Capture->getType().getNonReferenceType(), VK_LValue, Loc);
   if (!Res.isUsable())
     return ExprError();
   if (OK == OK_Ordinary && !getLangOpts().CPlusPlus) {
-    Res = CreateBuiltinUnaryOp(Loc, UO_Deref, Res.get());
+    Res = SemaRef.CreateBuiltinUnaryOp(Loc, UO_Deref, Res.get());
     if (!Res.isUsable())
       return ExprError();
   }
   if (VK != VK_LValue && Res.get()->isGLValue()) {
-    Res = DefaultLvalueConversion(Res.get());
+    Res = SemaRef.DefaultLvalueConversion(Res.get());
     if (!Res.isUsable())
       return ExprError();
   }
   return Res;
 }
 
-OMPClause *Sema::ActOnOpenMPPrivateClause(ArrayRef<Expr *> VarList,
-                                          SourceLocation StartLoc,
-                                          SourceLocation LParenLoc,
-                                          SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPPrivateClause(ArrayRef<Expr *> VarList,
+                                                SourceLocation StartLoc,
+                                                SourceLocation LParenLoc,
+                                                SourceLocation EndLoc) {
   SmallVector<Expr *, 8> Vars;
   SmallVector<Expr *, 8> PrivateCopies;
   bool IsImplicitClause =
@@ -18427,7 +18495,7 @@ OMPClause *Sema::ActOnOpenMPPrivateClause(ArrayRef<Expr *> VarList,
     SourceLocation ELoc;
     SourceRange ERange;
     Expr *SimpleRefExpr = RefExpr;
-    auto Res = getPrivateItem(*this, SimpleRefExpr, ELoc, ERange);
+    auto Res = getPrivateItem(SemaRef, SimpleRefExpr, ELoc, ERange);
     if (Res.second) {
       // It will be analyzed later.
       Vars.push_back(RefExpr);
@@ -18443,7 +18511,8 @@ OMPClause *Sema::ActOnOpenMPPrivateClause(ArrayRef<Expr *> VarList,
     // OpenMP [2.9.3.3, Restrictions, C/C++, p.3]
     //  A variable that appears in a private clause must not have an incomplete
     //  type or a reference type.
-    if (RequireCompleteType(ELoc, Type, diag::err_omp_private_incomplete_type))
+    if (SemaRef.RequireCompleteType(ELoc, Type,
+                                    diag::err_omp_private_incomplete_type))
       continue;
     Type = Type.getNonReferenceType();
 
@@ -18455,7 +18524,7 @@ OMPClause *Sema::ActOnOpenMPPrivateClause(ArrayRef<Expr *> VarList,
     // OpenMP 3.1 [2.9.3.3, private clause, Restrictions]
     // A variable that appears in a private clause must not have a
     // const-qualified type unless it is of class type with a mutable member.
-    if (rejectConstNotMutableType(*this, D, Type, OMPC_private, ELoc))
+    if (rejectConstNotMutableType(SemaRef, D, Type, OMPC_private, ELoc))
       continue;
 
     // OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables Referenced
@@ -18469,7 +18538,7 @@ OMPClause *Sema::ActOnOpenMPPrivateClause(ArrayRef<Expr *> VarList,
     if (DVar.CKind != OMPC_unknown && DVar.CKind != OMPC_private) {
       Diag(ELoc, diag::err_omp_wrong_dsa) << getOpenMPClauseName(DVar.CKind)
                                           << getOpenMPClauseName(OMPC_private);
-      reportOriginalDsa(*this, DSAStack, D, DVar);
+      reportOriginalDsa(SemaRef, DSAStack, D, DVar);
       continue;
     }
 
@@ -18480,7 +18549,7 @@ OMPClause *Sema::ActOnOpenMPPrivateClause(ArrayRef<Expr *> VarList,
       Diag(ELoc, diag::err_omp_variably_modified_type_not_supported)
           << getOpenMPClauseName(OMPC_private) << Type
           << getOpenMPDirectiveName(CurrDir);
-      bool IsDecl = !VD || VD->isThisDeclarationADefinition(Context) ==
+      bool IsDecl = !VD || VD->isThisDeclarationADefinition(getASTContext()) ==
                                VarDecl::DeclarationOnly;
       Diag(D->getLocation(),
            IsDecl ? diag::note_previous_decl : diag::note_defined_here)
@@ -18496,7 +18565,8 @@ OMPClause *Sema::ActOnOpenMPPrivateClause(ArrayRef<Expr *> VarList,
     // A list item cannot appear in both a map clause and a data-sharing
     // attribute clause on the same construct unless the construct is a
     // combined construct.
-    if ((LangOpts.OpenMP <= 45 && isOpenMPTargetExecutionDirective(CurrDir)) ||
+    if ((getLangOpts().OpenMP <= 45 &&
+         isOpenMPTargetExecutionDirective(CurrDir)) ||
         CurrDir == OMPD_target) {
       OpenMPClauseKind ConflictKind;
       if (DSAStack->checkMappableExprComponentListsForDecl(
@@ -18510,7 +18580,7 @@ OMPClause *Sema::ActOnOpenMPPrivateClause(ArrayRef<Expr *> VarList,
             << getOpenMPClauseName(OMPC_private)
             << getOpenMPClauseName(ConflictKind)
             << getOpenMPDirectiveName(CurrDir);
-        reportOriginalDsa(*this, DSAStack, D, DVar);
+        reportOriginalDsa(SemaRef, DSAStack, D, DVar);
         continue;
       }
     }
@@ -18526,28 +18596,28 @@ OMPClause *Sema::ActOnOpenMPPrivateClause(ArrayRef<Expr *> VarList,
     // proper diagnostics.
     Type = Type.getUnqualifiedType();
     VarDecl *VDPrivate =
-        buildVarDecl(*this, ELoc, Type, D->getName(),
+        buildVarDecl(SemaRef, ELoc, Type, D->getName(),
                      D->hasAttrs() ? &D->getAttrs() : nullptr,
                      VD ? cast<DeclRefExpr>(SimpleRefExpr) : nullptr);
-    ActOnUninitializedDecl(VDPrivate);
+    SemaRef.ActOnUninitializedDecl(VDPrivate);
     if (VDPrivate->isInvalidDecl())
       continue;
     DeclRefExpr *VDPrivateRefExpr = buildDeclRefExpr(
-        *this, VDPrivate, RefExpr->getType().getUnqualifiedType(), ELoc);
+        SemaRef, VDPrivate, RefExpr->getType().getUnqualifiedType(), ELoc);
 
     DeclRefExpr *Ref = nullptr;
-    if (!VD && !CurContext->isDependentContext()) {
+    if (!VD && !SemaRef.CurContext->isDependentContext()) {
       auto *FD = dyn_cast<FieldDecl>(D);
       VarDecl *VD = FD ? DSAStack->getImplicitFDCapExprDecl(FD) : nullptr;
       if (VD)
-        Ref = buildDeclRefExpr(*this, VD, VD->getType().getNonReferenceType(),
+        Ref = buildDeclRefExpr(SemaRef, VD, VD->getType().getNonReferenceType(),
                                RefExpr->getExprLoc());
       else
-        Ref = buildCapture(*this, D, SimpleRefExpr, /*WithInit=*/false);
+        Ref = buildCapture(SemaRef, D, SimpleRefExpr, /*WithInit=*/false);
     }
     if (!IsImplicitClause)
       DSAStack->addDSA(D, RefExpr->IgnoreParens(), OMPC_private, Ref);
-    Vars.push_back((VD || CurContext->isDependentContext())
+    Vars.push_back((VD || SemaRef.CurContext->isDependentContext())
                        ? RefExpr->IgnoreParens()
                        : Ref);
     PrivateCopies.push_back(VDPrivateRefExpr);
@@ -18556,14 +18626,14 @@ OMPClause *Sema::ActOnOpenMPPrivateClause(ArrayRef<Expr *> VarList,
   if (Vars.empty())
     return nullptr;
 
-  return OMPPrivateClause::Create(Context, StartLoc, LParenLoc, EndLoc, Vars,
-                                  PrivateCopies);
+  return OMPPrivateClause::Create(getASTContext(), StartLoc, LParenLoc, EndLoc,
+                                  Vars, PrivateCopies);
 }
 
-OMPClause *Sema::ActOnOpenMPFirstprivateClause(ArrayRef<Expr *> VarList,
-                                               SourceLocation StartLoc,
-                                               SourceLocation LParenLoc,
-                                               SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPFirstprivateClause(ArrayRef<Expr *> VarList,
+                                                     SourceLocation StartLoc,
+                                                     SourceLocation LParenLoc,
+                                                     SourceLocation EndLoc) {
   SmallVector<Expr *, 8> Vars;
   SmallVector<Expr *, 8> PrivateCopies;
   SmallVector<Expr *, 8> Inits;
@@ -18577,7 +18647,7 @@ OMPClause *Sema::ActOnOpenMPFirstprivateClause(ArrayRef<Expr *> VarList,
     SourceLocation ELoc;
     SourceRange ERange;
     Expr *SimpleRefExpr = RefExpr;
-    auto Res = getPrivateItem(*this, SimpleRefExpr, ELoc, ERange);
+    auto Res = getPrivateItem(SemaRef, SimpleRefExpr, ELoc, ERange);
     if (Res.second) {
       // It will be analyzed later.
       Vars.push_back(RefExpr);
@@ -18595,8 +18665,8 @@ OMPClause *Sema::ActOnOpenMPFirstprivateClause(ArrayRef<Expr *> VarList,
     // OpenMP [2.9.3.3, Restrictions, C/C++, p.3]
     //  A variable that appears in a private clause must not have an incomplete
     //  type or a reference type.
-    if (RequireCompleteType(ELoc, Type,
-                            diag::err_omp_firstprivate_incomplete_type))
+    if (SemaRef.RequireCompleteType(ELoc, Type,
+                                    diag::err_omp_firstprivate_incomplete_type))
       continue;
     Type = Type.getNonReferenceType();
 
@@ -18604,7 +18674,8 @@ OMPClause *Sema::ActOnOpenMPFirstprivateClause(ArrayRef<Expr *> VarList,
     //  A variable of class type (or array thereof) that appears in a private
     //  clause requires an accessible, unambiguous copy constructor for the
     //  class type.
-    QualType ElemType = Context.getBaseElementType(Type).getNonReferenceType();
+    QualType ElemType =
+        getASTContext().getBaseElementType(Type).getNonReferenceType();
 
     // If an implicit firstprivate variable found it was checked already.
     DSAStackTy::DSAVarData TopDVar;
@@ -18613,7 +18684,7 @@ OMPClause *Sema::ActOnOpenMPFirstprivateClause(ArrayRef<Expr *> VarList,
           DSAStack->getTopDSA(D, /*FromParent=*/false);
       TopDVar = DVar;
       OpenMPDirectiveKind CurrDir = DSAStack->getCurrentDirective();
-      bool IsConstant = ElemType.isConstant(Context);
+      bool IsConstant = ElemType.isConstant(getASTContext());
       // OpenMP [2.4.13, Data-sharing Attribute Clauses]
       //  A list item that specifies a given variable may not appear in more
       // than one clause on the same directive, except that a variable may be
@@ -18628,7 +18699,7 @@ OMPClause *Sema::ActOnOpenMPFirstprivateClause(ArrayRef<Expr *> VarList,
         Diag(ELoc, diag::err_omp_wrong_dsa)
             << getOpenMPClauseName(DVar.CKind)
             << getOpenMPClauseName(OMPC_firstprivate);
-        reportOriginalDsa(*this, DSAStack, D, DVar);
+        reportOriginalDsa(SemaRef, DSAStack, D, DVar);
         continue;
       }
 
@@ -18648,7 +18719,7 @@ OMPClause *Sema::ActOnOpenMPFirstprivateClause(ArrayRef<Expr *> VarList,
         Diag(ELoc, diag::err_omp_wrong_dsa)
             << getOpenMPClauseName(DVar.CKind)
             << getOpenMPClauseName(OMPC_firstprivate);
-        reportOriginalDsa(*this, DSAStack, D, DVar);
+        reportOriginalDsa(SemaRef, DSAStack, D, DVar);
         continue;
       }
 
@@ -18679,7 +18750,7 @@ OMPClause *Sema::ActOnOpenMPFirstprivateClause(ArrayRef<Expr *> VarList,
           Diag(ELoc, diag::err_omp_required_access)
               << getOpenMPClauseName(OMPC_firstprivate)
               << getOpenMPClauseName(OMPC_shared);
-          reportOriginalDsa(*this, DSAStack, D, DVar);
+          reportOriginalDsa(SemaRef, DSAStack, D, DVar);
           continue;
         }
       }
@@ -18712,7 +18783,7 @@ OMPClause *Sema::ActOnOpenMPFirstprivateClause(ArrayRef<Expr *> VarList,
              isOpenMPTeamsDirective(DVar.DKind))) {
           Diag(ELoc, diag::err_omp_parallel_reduction_in_task_firstprivate)
               << getOpenMPDirectiveName(DVar.DKind);
-          reportOriginalDsa(*this, DSAStack, D, DVar);
+          reportOriginalDsa(SemaRef, DSAStack, D, DVar);
           continue;
         }
       }
@@ -18725,7 +18796,7 @@ OMPClause *Sema::ActOnOpenMPFirstprivateClause(ArrayRef<Expr *> VarList,
       // A list item cannot appear in both a map clause and a data-sharing
       // attribute clause on the same construct unless the construct is a
       // combined construct.
-      if ((LangOpts.OpenMP <= 45 &&
+      if ((getLangOpts().OpenMP <= 45 &&
            isOpenMPTargetExecutionDirective(CurrDir)) ||
           CurrDir == OMPD_target) {
         OpenMPClauseKind ConflictKind;
@@ -18741,7 +18812,7 @@ OMPClause *Sema::ActOnOpenMPFirstprivateClause(ArrayRef<Expr *> VarList,
               << getOpenMPClauseName(OMPC_firstprivate)
               << getOpenMPClauseName(ConflictKind)
               << getOpenMPDirectiveName(DSAStack->getCurrentDirective());
-          reportOriginalDsa(*this, DSAStack, D, DVar);
+          reportOriginalDsa(SemaRef, DSAStack, D, DVar);
           continue;
         }
       }
@@ -18753,7 +18824,7 @@ OMPClause *Sema::ActOnOpenMPFirstprivateClause(ArrayRef<Expr *> VarList,
       Diag(ELoc, diag::err_omp_variably_modified_type_not_supported)
           << getOpenMPClauseName(OMPC_firstprivate) << Type
           << getOpenMPDirectiveName(DSAStack->getCurrentDirective());
-      bool IsDecl = !VD || VD->isThisDeclarationADefinition(Context) ==
+      bool IsDecl = !VD || VD->isThisDeclarationADefinition(getASTContext()) ==
                                VarDecl::DeclarationOnly;
       Diag(D->getLocation(),
            IsDecl ? diag::note_previous_decl : diag::note_defined_here)
@@ -18763,7 +18834,7 @@ OMPClause *Sema::ActOnOpenMPFirstprivateClause(ArrayRef<Expr *> VarList,
 
     Type = Type.getUnqualifiedType();
     VarDecl *VDPrivate =
-        buildVarDecl(*this, ELoc, Type, D->getName(),
+        buildVarDecl(SemaRef, ELoc, Type, D->getName(),
                      D->hasAttrs() ? &D->getAttrs() : nullptr,
                      VD ? cast<DeclRefExpr>(SimpleRefExpr) : nullptr);
     // Generate helper private variable and initialize it with the value of the
@@ -18776,32 +18847,32 @@ OMPClause *Sema::ActOnOpenMPFirstprivateClause(ArrayRef<Expr *> VarList,
     // original array element in CodeGen.
     if (Type->isArrayType()) {
       VarDecl *VDInit =
-          buildVarDecl(*this, RefExpr->getExprLoc(), ElemType, D->getName());
-      VDInitRefExpr = buildDeclRefExpr(*this, VDInit, ElemType, ELoc);
-      Expr *Init = DefaultLvalueConversion(VDInitRefExpr).get();
+          buildVarDecl(SemaRef, RefExpr->getExprLoc(), ElemType, D->getName());
+      VDInitRefExpr = buildDeclRefExpr(SemaRef, VDInit, ElemType, ELoc);
+      Expr *Init = SemaRef.DefaultLvalueConversion(VDInitRefExpr).get();
       ElemType = ElemType.getUnqualifiedType();
-      VarDecl *VDInitTemp = buildVarDecl(*this, RefExpr->getExprLoc(), ElemType,
-                                         ".firstprivate.temp");
+      VarDecl *VDInitTemp = buildVarDecl(SemaRef, RefExpr->getExprLoc(),
+                                         ElemType, ".firstprivate.temp");
       InitializedEntity Entity =
           InitializedEntity::InitializeVariable(VDInitTemp);
       InitializationKind Kind = InitializationKind::CreateCopy(ELoc, ELoc);
 
-      InitializationSequence InitSeq(*this, Entity, Kind, Init);
-      ExprResult Result = InitSeq.Perform(*this, Entity, Kind, Init);
+      InitializationSequence InitSeq(SemaRef, Entity, Kind, Init);
+      ExprResult Result = InitSeq.Perform(SemaRef, Entity, Kind, Init);
       if (Result.isInvalid())
         VDPrivate->setInvalidDecl();
       else
         VDPrivate->setInit(Result.getAs<Expr>());
       // Remove temp variable declaration.
-      Context.Deallocate(VDInitTemp);
+      getASTContext().Deallocate(VDInitTemp);
     } else {
-      VarDecl *VDInit = buildVarDecl(*this, RefExpr->getExprLoc(), Type,
+      VarDecl *VDInit = buildVarDecl(SemaRef, RefExpr->getExprLoc(), Type,
                                      ".firstprivate.temp");
-      VDInitRefExpr = buildDeclRefExpr(*this, VDInit, RefExpr->getType(),
+      VDInitRefExpr = buildDeclRefExpr(SemaRef, VDInit, RefExpr->getType(),
                                        RefExpr->getExprLoc());
-      AddInitializerToDecl(VDPrivate,
-                           DefaultLvalueConversion(VDInitRefExpr).get(),
-                           /*DirectInit=*/false);
+      SemaRef.AddInitializerToDecl(
+          VDPrivate, SemaRef.DefaultLvalueConversion(VDInitRefExpr).get(),
+          /*DirectInit=*/false);
     }
     if (VDPrivate->isInvalidDecl()) {
       if (IsImplicitClause) {
@@ -18810,29 +18881,30 @@ OMPClause *Sema::ActOnOpenMPFirstprivateClause(ArrayRef<Expr *> VarList,
       }
       continue;
     }
-    CurContext->addDecl(VDPrivate);
+    SemaRef.CurContext->addDecl(VDPrivate);
     DeclRefExpr *VDPrivateRefExpr = buildDeclRefExpr(
-        *this, VDPrivate, RefExpr->getType().getUnqualifiedType(),
+        SemaRef, VDPrivate, RefExpr->getType().getUnqualifiedType(),
         RefExpr->getExprLoc());
     DeclRefExpr *Ref = nullptr;
-    if (!VD && !CurContext->isDependentContext()) {
+    if (!VD && !SemaRef.CurContext->isDependentContext()) {
       if (TopDVar.CKind == OMPC_lastprivate) {
         Ref = TopDVar.PrivateCopy;
       } else {
         auto *FD = dyn_cast<FieldDecl>(D);
         VarDecl *VD = FD ? DSAStack->getImplicitFDCapExprDecl(FD) : nullptr;
         if (VD)
-          Ref = buildDeclRefExpr(*this, VD, VD->getType().getNonReferenceType(),
-                                 RefExpr->getExprLoc());
+          Ref =
+              buildDeclRefExpr(SemaRef, VD, VD->getType().getNonReferenceType(),
+                               RefExpr->getExprLoc());
         else
-          Ref = buildCapture(*this, D, SimpleRefExpr, /*WithInit=*/true);
+          Ref = buildCapture(SemaRef, D, SimpleRefExpr, /*WithInit=*/true);
         if (VD || !isOpenMPCapturedDecl(D))
           ExprCaptures.push_back(Ref->getDecl());
       }
     }
     if (!IsImplicitClause)
       DSAStack->addDSA(D, RefExpr->IgnoreParens(), OMPC_firstprivate, Ref);
-    Vars.push_back((VD || CurContext->isDependentContext())
+    Vars.push_back((VD || SemaRef.CurContext->isDependentContext())
                        ? RefExpr->IgnoreParens()
                        : Ref);
     PrivateCopies.push_back(VDPrivateRefExpr);
@@ -18842,12 +18914,12 @@ OMPClause *Sema::ActOnOpenMPFirstprivateClause(ArrayRef<Expr *> VarList,
   if (Vars.empty())
     return nullptr;
 
-  return OMPFirstprivateClause::Create(Context, StartLoc, LParenLoc, EndLoc,
-                                       Vars, PrivateCopies, Inits,
-                                       buildPreInits(Context, ExprCaptures));
+  return OMPFirstprivateClause::Create(
+      getASTContext(), StartLoc, LParenLoc, EndLoc, Vars, PrivateCopies, Inits,
+      buildPreInits(getASTContext(), ExprCaptures));
 }
 
-OMPClause *Sema::ActOnOpenMPLastprivateClause(
+OMPClause *SemaOpenMP::ActOnOpenMPLastprivateClause(
     ArrayRef<Expr *> VarList, OpenMPLastprivateModifier LPKind,
     SourceLocation LPKindLoc, SourceLocation ColonLoc, SourceLocation StartLoc,
     SourceLocation LParenLoc, SourceLocation EndLoc) {
@@ -18871,7 +18943,7 @@ OMPClause *Sema::ActOnOpenMPLastprivateClause(
     SourceLocation ELoc;
     SourceRange ERange;
     Expr *SimpleRefExpr = RefExpr;
-    auto Res = getPrivateItem(*this, SimpleRefExpr, ELoc, ERange);
+    auto Res = getPrivateItem(SemaRef, SimpleRefExpr, ELoc, ERange);
     if (Res.second) {
       // It will be analyzed later.
       Vars.push_back(RefExpr);
@@ -18889,8 +18961,8 @@ OMPClause *Sema::ActOnOpenMPLastprivateClause(
     // OpenMP [2.14.3.5, Restrictions, C/C++, p.2]
     //  A variable that appears in a lastprivate clause must not have an
     //  incomplete type or a reference type.
-    if (RequireCompleteType(ELoc, Type,
-                            diag::err_omp_lastprivate_incomplete_type))
+    if (SemaRef.RequireCompleteType(ELoc, Type,
+                                    diag::err_omp_lastprivate_incomplete_type))
       continue;
     Type = Type.getNonReferenceType();
 
@@ -18902,7 +18974,7 @@ OMPClause *Sema::ActOnOpenMPLastprivateClause(
     // OpenMP 3.1 [2.9.3.5, lastprivate clause, Restrictions]
     // A variable that appears in a lastprivate clause must not have a
     // const-qualified type unless it is of class type with a mutable member.
-    if (rejectConstNotMutableType(*this, D, Type, OMPC_lastprivate, ELoc))
+    if (rejectConstNotMutableType(SemaRef, D, Type, OMPC_lastprivate, ELoc))
       continue;
 
     // OpenMP 5.0 [2.19.4.5 lastprivate Clause, Restrictions]
@@ -18910,7 +18982,7 @@ OMPClause *Sema::ActOnOpenMPLastprivateClause(
     // modifier must be a scalar variable.
     if (LPKind == OMPC_LASTPRIVATE_conditional && !Type->isScalarType()) {
       Diag(ELoc, diag::err_omp_lastprivate_conditional_non_scalar);
-      bool IsDecl = !VD || VD->isThisDeclarationADefinition(Context) ==
+      bool IsDecl = !VD || VD->isThisDeclarationADefinition(getASTContext()) ==
                                VarDecl::DeclarationOnly;
       Diag(D->getLocation(),
            IsDecl ? diag::note_previous_decl : diag::note_defined_here)
@@ -18935,7 +19007,7 @@ OMPClause *Sema::ActOnOpenMPLastprivateClause(
       Diag(ELoc, diag::err_omp_wrong_dsa)
           << getOpenMPClauseName(DVar.CKind)
           << getOpenMPClauseName(OMPC_lastprivate);
-      reportOriginalDsa(*this, DSAStack, D, DVar);
+      reportOriginalDsa(SemaRef, DSAStack, D, DVar);
       continue;
     }
 
@@ -18954,7 +19026,7 @@ OMPClause *Sema::ActOnOpenMPLastprivateClause(
         Diag(ELoc, diag::err_omp_required_access)
             << getOpenMPClauseName(OMPC_lastprivate)
             << getOpenMPClauseName(OMPC_shared);
-        reportOriginalDsa(*this, DSAStack, D, DVar);
+        reportOriginalDsa(SemaRef, DSAStack, D, DVar);
         continue;
       }
     }
@@ -18967,53 +19039,53 @@ OMPClause *Sema::ActOnOpenMPLastprivateClause(
     //  A variable of class type (or array thereof) that appears in a
     //  lastprivate clause requires an accessible, unambiguous copy assignment
     //  operator for the class type.
-    Type = Context.getBaseElementType(Type).getNonReferenceType();
-    VarDecl *SrcVD = buildVarDecl(*this, ERange.getBegin(),
+    Type = getASTContext().getBaseElementType(Type).getNonReferenceType();
+    VarDecl *SrcVD = buildVarDecl(SemaRef, ERange.getBegin(),
                                   Type.getUnqualifiedType(), ".lastprivate.src",
                                   D->hasAttrs() ? &D->getAttrs() : nullptr);
     DeclRefExpr *PseudoSrcExpr =
-        buildDeclRefExpr(*this, SrcVD, Type.getUnqualifiedType(), ELoc);
+        buildDeclRefExpr(SemaRef, SrcVD, Type.getUnqualifiedType(), ELoc);
     VarDecl *DstVD =
-        buildVarDecl(*this, ERange.getBegin(), Type, ".lastprivate.dst",
+        buildVarDecl(SemaRef, ERange.getBegin(), Type, ".lastprivate.dst",
                      D->hasAttrs() ? &D->getAttrs() : nullptr);
-    DeclRefExpr *PseudoDstExpr = buildDeclRefExpr(*this, DstVD, Type, ELoc);
+    DeclRefExpr *PseudoDstExpr = buildDeclRefExpr(SemaRef, DstVD, Type, ELoc);
     // For arrays generate assignment operation for single element and replace
     // it by the original array element in CodeGen.
-    ExprResult AssignmentOp = BuildBinOp(/*S=*/nullptr, ELoc, BO_Assign,
-                                         PseudoDstExpr, PseudoSrcExpr);
+    ExprResult AssignmentOp = SemaRef.BuildBinOp(/*S=*/nullptr, ELoc, BO_Assign,
+                                                 PseudoDstExpr, PseudoSrcExpr);
     if (AssignmentOp.isInvalid())
       continue;
-    AssignmentOp =
-        ActOnFinishFullExpr(AssignmentOp.get(), ELoc, /*DiscardedValue*/ false);
+    AssignmentOp = SemaRef.ActOnFinishFullExpr(AssignmentOp.get(), ELoc,
+                                               /*DiscardedValue*/ false);
     if (AssignmentOp.isInvalid())
       continue;
 
     DeclRefExpr *Ref = nullptr;
-    if (!VD && !CurContext->isDependentContext()) {
+    if (!VD && !SemaRef.CurContext->isDependentContext()) {
       if (TopDVar.CKind == OMPC_firstprivate) {
         Ref = TopDVar.PrivateCopy;
       } else {
-        Ref = buildCapture(*this, D, SimpleRefExpr, /*WithInit=*/false);
+        Ref = buildCapture(SemaRef, D, SimpleRefExpr, /*WithInit=*/false);
         if (!isOpenMPCapturedDecl(D))
           ExprCaptures.push_back(Ref->getDecl());
       }
       if ((TopDVar.CKind == OMPC_firstprivate && !TopDVar.PrivateCopy) ||
           (!isOpenMPCapturedDecl(D) &&
            Ref->getDecl()->hasAttr<OMPCaptureNoInitAttr>())) {
-        ExprResult RefRes = DefaultLvalueConversion(Ref);
+        ExprResult RefRes = SemaRef.DefaultLvalueConversion(Ref);
         if (!RefRes.isUsable())
           continue;
         ExprResult PostUpdateRes =
-            BuildBinOp(DSAStack->getCurScope(), ELoc, BO_Assign, SimpleRefExpr,
-                       RefRes.get());
+            SemaRef.BuildBinOp(DSAStack->getCurScope(), ELoc, BO_Assign,
+                               SimpleRefExpr, RefRes.get());
         if (!PostUpdateRes.isUsable())
           continue;
         ExprPostUpdates.push_back(
-            IgnoredValueConversions(PostUpdateRes.get()).get());
+            SemaRef.IgnoredValueConversions(PostUpdateRes.get()).get());
       }
     }
     DSAStack->addDSA(D, RefExpr->IgnoreParens(), OMPC_lastprivate, Ref);
-    Vars.push_back((VD || CurContext->isDependentContext())
+    Vars.push_back((VD || SemaRef.CurContext->isDependentContext())
                        ? RefExpr->IgnoreParens()
                        : Ref);
     SrcExprs.push_back(PseudoSrcExpr);
@@ -19024,24 +19096,24 @@ OMPClause *Sema::ActOnOpenMPLastprivateClause(
   if (Vars.empty())
     return nullptr;
 
-  return OMPLastprivateClause::Create(Context, StartLoc, LParenLoc, EndLoc,
-                                      Vars, SrcExprs, DstExprs, AssignmentOps,
-                                      LPKind, LPKindLoc, ColonLoc,
-                                      buildPreInits(Context, ExprCaptures),
-                                      buildPostUpdate(*this, ExprPostUpdates));
+  return OMPLastprivateClause::Create(
+      getASTContext(), StartLoc, LParenLoc, EndLoc, Vars, SrcExprs, DstExprs,
+      AssignmentOps, LPKind, LPKindLoc, ColonLoc,
+      buildPreInits(getASTContext(), ExprCaptures),
+      buildPostUpdate(SemaRef, ExprPostUpdates));
 }
 
-OMPClause *Sema::ActOnOpenMPSharedClause(ArrayRef<Expr *> VarList,
-                                         SourceLocation StartLoc,
-                                         SourceLocation LParenLoc,
-                                         SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPSharedClause(ArrayRef<Expr *> VarList,
+                                               SourceLocation StartLoc,
+                                               SourceLocation LParenLoc,
+                                               SourceLocation EndLoc) {
   SmallVector<Expr *, 8> Vars;
   for (Expr *RefExpr : VarList) {
     assert(RefExpr && "NULL expr in OpenMP lastprivate clause.");
     SourceLocation ELoc;
     SourceRange ERange;
     Expr *SimpleRefExpr = RefExpr;
-    auto Res = getPrivateItem(*this, SimpleRefExpr, ELoc, ERange);
+    auto Res = getPrivateItem(SemaRef, SimpleRefExpr, ELoc, ERange);
     if (Res.second) {
       // It will be analyzed later.
       Vars.push_back(RefExpr);
@@ -19063,15 +19135,16 @@ OMPClause *Sema::ActOnOpenMPSharedClause(ArrayRef<Expr *> VarList,
         DVar.RefExpr) {
       Diag(ELoc, diag::err_omp_wrong_dsa) << getOpenMPClauseName(DVar.CKind)
                                           << getOpenMPClauseName(OMPC_shared);
-      reportOriginalDsa(*this, DSAStack, D, DVar);
+      reportOriginalDsa(SemaRef, DSAStack, D, DVar);
       continue;
     }
 
     DeclRefExpr *Ref = nullptr;
-    if (!VD && isOpenMPCapturedDecl(D) && !CurContext->isDependentContext())
-      Ref = buildCapture(*this, D, SimpleRefExpr, /*WithInit=*/true);
+    if (!VD && isOpenMPCapturedDecl(D) &&
+        !SemaRef.CurContext->isDependentContext())
+      Ref = buildCapture(SemaRef, D, SimpleRefExpr, /*WithInit=*/true);
     DSAStack->addDSA(D, RefExpr->IgnoreParens(), OMPC_shared, Ref);
-    Vars.push_back((VD || !Ref || CurContext->isDependentContext())
+    Vars.push_back((VD || !Ref || SemaRef.CurContext->isDependentContext())
                        ? RefExpr->IgnoreParens()
                        : Ref);
   }
@@ -19079,7 +19152,8 @@ OMPClause *Sema::ActOnOpenMPSharedClause(ArrayRef<Expr *> VarList,
   if (Vars.empty())
     return nullptr;
 
-  return OMPSharedClause::Create(Context, StartLoc, LParenLoc, EndLoc, Vars);
+  return OMPSharedClause::Create(getASTContext(), StartLoc, LParenLoc, EndLoc,
+                                 Vars);
 }
 
 namespace {
@@ -20200,7 +20274,7 @@ static bool actOnOMPReductionKindClause(
       } else {
         VarsExpr = Ref = buildCapture(S, D, SimpleRefExpr, /*WithInit=*/false);
       }
-      if (!S.isOpenMPCapturedDecl(D)) {
+      if (!S.OpenMP().isOpenMPCapturedDecl(D)) {
         RD.ExprCaptures.emplace_back(Ref->getDecl());
         if (Ref->getDecl()->hasAttr<OMPCaptureNoInitAttr>()) {
           ExprResult RefRes = S.DefaultLvalueConversion(Ref);
@@ -20250,7 +20324,7 @@ static bool actOnOMPReductionKindClause(
   return RD.Vars.empty();
 }
 
-OMPClause *Sema::ActOnOpenMPReductionClause(
+OMPClause *SemaOpenMP::ActOnOpenMPReductionClause(
     ArrayRef<Expr *> VarList, OpenMPReductionClauseModifier Modifier,
     SourceLocation StartLoc, SourceLocation LParenLoc,
     SourceLocation ModifierLoc, SourceLocation ColonLoc, SourceLocation EndLoc,
@@ -20279,77 +20353,80 @@ OMPClause *Sema::ActOnOpenMPReductionClause(
   }
 
   ReductionData RD(VarList.size(), Modifier);
-  if (actOnOMPReductionKindClause(*this, DSAStack, OMPC_reduction, VarList,
+  if (actOnOMPReductionKindClause(SemaRef, DSAStack, OMPC_reduction, VarList,
                                   StartLoc, LParenLoc, ColonLoc, EndLoc,
                                   ReductionIdScopeSpec, ReductionId,
                                   UnresolvedReductions, RD))
     return nullptr;
 
   return OMPReductionClause::Create(
-      Context, StartLoc, LParenLoc, ModifierLoc, ColonLoc, EndLoc, Modifier,
-      RD.Vars, ReductionIdScopeSpec.getWithLocInContext(Context), ReductionId,
+      getASTContext(), StartLoc, LParenLoc, ModifierLoc, ColonLoc, EndLoc,
+      Modifier, RD.Vars,
+      ReductionIdScopeSpec.getWithLocInContext(getASTContext()), ReductionId,
       RD.Privates, RD.LHSs, RD.RHSs, RD.ReductionOps, RD.InscanCopyOps,
       RD.InscanCopyArrayTemps, RD.InscanCopyArrayElems,
-      buildPreInits(Context, RD.ExprCaptures),
-      buildPostUpdate(*this, RD.ExprPostUpdates));
+      buildPreInits(getASTContext(), RD.ExprCaptures),
+      buildPostUpdate(SemaRef, RD.ExprPostUpdates));
 }
 
-OMPClause *Sema::ActOnOpenMPTaskReductionClause(
+OMPClause *SemaOpenMP::ActOnOpenMPTaskReductionClause(
     ArrayRef<Expr *> VarList, SourceLocation StartLoc, SourceLocation LParenLoc,
     SourceLocation ColonLoc, SourceLocation EndLoc,
     CXXScopeSpec &ReductionIdScopeSpec, const DeclarationNameInfo &ReductionId,
     ArrayRef<Expr *> UnresolvedReductions) {
   ReductionData RD(VarList.size());
-  if (actOnOMPReductionKindClause(*this, DSAStack, OMPC_task_reduction, VarList,
-                                  StartLoc, LParenLoc, ColonLoc, EndLoc,
-                                  ReductionIdScopeSpec, ReductionId,
+  if (actOnOMPReductionKindClause(SemaRef, DSAStack, OMPC_task_reduction,
+                                  VarList, StartLoc, LParenLoc, ColonLoc,
+                                  EndLoc, ReductionIdScopeSpec, ReductionId,
                                   UnresolvedReductions, RD))
     return nullptr;
 
   return OMPTaskReductionClause::Create(
-      Context, StartLoc, LParenLoc, ColonLoc, EndLoc, RD.Vars,
-      ReductionIdScopeSpec.getWithLocInContext(Context), ReductionId,
+      getASTContext(), StartLoc, LParenLoc, ColonLoc, EndLoc, RD.Vars,
+      ReductionIdScopeSpec.getWithLocInContext(getASTContext()), ReductionId,
       RD.Privates, RD.LHSs, RD.RHSs, RD.ReductionOps,
-      buildPreInits(Context, RD.ExprCaptures),
-      buildPostUpdate(*this, RD.ExprPostUpdates));
+      buildPreInits(getASTContext(), RD.ExprCaptures),
+      buildPostUpdate(SemaRef, RD.ExprPostUpdates));
 }
 
-OMPClause *Sema::ActOnOpenMPInReductionClause(
+OMPClause *SemaOpenMP::ActOnOpenMPInReductionClause(
     ArrayRef<Expr *> VarList, SourceLocation StartLoc, SourceLocation LParenLoc,
     SourceLocation ColonLoc, SourceLocation EndLoc,
     CXXScopeSpec &ReductionIdScopeSpec, const DeclarationNameInfo &ReductionId,
     ArrayRef<Expr *> UnresolvedReductions) {
   ReductionData RD(VarList.size());
-  if (actOnOMPReductionKindClause(*this, DSAStack, OMPC_in_reduction, VarList,
+  if (actOnOMPReductionKindClause(SemaRef, DSAStack, OMPC_in_reduction, VarList,
                                   StartLoc, LParenLoc, ColonLoc, EndLoc,
                                   ReductionIdScopeSpec, ReductionId,
                                   UnresolvedReductions, RD))
     return nullptr;
 
   return OMPInReductionClause::Create(
-      Context, StartLoc, LParenLoc, ColonLoc, EndLoc, RD.Vars,
-      ReductionIdScopeSpec.getWithLocInContext(Context), ReductionId,
+      getASTContext(), StartLoc, LParenLoc, ColonLoc, EndLoc, RD.Vars,
+      ReductionIdScopeSpec.getWithLocInContext(getASTContext()), ReductionId,
       RD.Privates, RD.LHSs, RD.RHSs, RD.ReductionOps, RD.TaskgroupDescriptors,
-      buildPreInits(Context, RD.ExprCaptures),
-      buildPostUpdate(*this, RD.ExprPostUpdates));
+      buildPreInits(getASTContext(), RD.ExprCaptures),
+      buildPostUpdate(SemaRef, RD.ExprPostUpdates));
 }
 
-bool Sema::CheckOpenMPLinearModifier(OpenMPLinearClauseKind LinKind,
-                                     SourceLocation LinLoc) {
-  if ((!LangOpts.CPlusPlus && LinKind != OMPC_LINEAR_val) ||
+bool SemaOpenMP::CheckOpenMPLinearModifier(OpenMPLinearClauseKind LinKind,
+                                           SourceLocation LinLoc) {
+  if ((!getLangOpts().CPlusPlus && LinKind != OMPC_LINEAR_val) ||
       LinKind == OMPC_LINEAR_unknown || LinKind == OMPC_LINEAR_step) {
-    Diag(LinLoc, diag::err_omp_wrong_linear_modifier) << LangOpts.CPlusPlus;
+    Diag(LinLoc, diag::err_omp_wrong_linear_modifier)
+        << getLangOpts().CPlusPlus;
     return true;
   }
   return false;
 }
 
-bool Sema::CheckOpenMPLinearDecl(const ValueDecl *D, SourceLocation ELoc,
-                                 OpenMPLinearClauseKind LinKind, QualType Type,
-                                 bool IsDeclareSimd) {
+bool SemaOpenMP::CheckOpenMPLinearDecl(const ValueDecl *D, SourceLocation ELoc,
+                                       OpenMPLinearClauseKind LinKind,
+                                       QualType Type, bool IsDeclareSimd) {
   const auto *VD = dyn_cast_or_null<VarDecl>(D);
   // A variable must not have an incomplete type or a reference type.
-  if (RequireCompleteType(ELoc, Type, diag::err_omp_linear_incomplete_type))
+  if (SemaRef.RequireCompleteType(ELoc, Type,
+                                  diag::err_omp_linear_incomplete_type))
     return true;
   if ((LinKind == OMPC_LINEAR_uval || LinKind == OMPC_LINEAR_ref) &&
       !Type->isReferenceType()) {
@@ -20365,17 +20442,17 @@ bool Sema::CheckOpenMPLinearDecl(const ValueDecl *D, SourceLocation ELoc,
   // not apply to the firstprivate clause, nor to the linear clause on
   // declarative directives (like declare simd).
   if (!IsDeclareSimd &&
-      rejectConstNotMutableType(*this, D, Type, OMPC_linear, ELoc))
+      rejectConstNotMutableType(SemaRef, D, Type, OMPC_linear, ELoc))
     return true;
 
   // A list item must be of integral or pointer type.
   Type = Type.getUnqualifiedType().getCanonicalType();
   const auto *Ty = Type.getTypePtrOrNull();
   if (!Ty || (LinKind != OMPC_LINEAR_ref && !Ty->isDependentType() &&
-              !Ty->isIntegralType(Context) && !Ty->isPointerType())) {
+              !Ty->isIntegralType(getASTContext()) && !Ty->isPointerType())) {
     Diag(ELoc, diag::err_omp_linear_expected_int_or_ptr) << Type;
     if (D) {
-      bool IsDecl = !VD || VD->isThisDeclarationADefinition(Context) ==
+      bool IsDecl = !VD || VD->isThisDeclarationADefinition(getASTContext()) ==
                                VarDecl::DeclarationOnly;
       Diag(D->getLocation(),
            IsDecl ? diag::note_previous_decl : diag::note_defined_here)
@@ -20386,7 +20463,7 @@ bool Sema::CheckOpenMPLinearDecl(const ValueDecl *D, SourceLocation ELoc,
   return false;
 }
 
-OMPClause *Sema::ActOnOpenMPLinearClause(
+OMPClause *SemaOpenMP::ActOnOpenMPLinearClause(
     ArrayRef<Expr *> VarList, Expr *Step, SourceLocation StartLoc,
     SourceLocation LParenLoc, OpenMPLinearClauseKind LinKind,
     SourceLocation LinLoc, SourceLocation ColonLoc,
@@ -20409,7 +20486,7 @@ OMPClause *Sema::ActOnOpenMPLinearClause(
     SourceLocation ELoc;
     SourceRange ERange;
     Expr *SimpleRefExpr = RefExpr;
-    auto Res = getPrivateItem(*this, SimpleRefExpr, ELoc, ERange);
+    auto Res = getPrivateItem(SemaRef, SimpleRefExpr, ELoc, ERange);
     if (Res.second) {
       // It will be analyzed later.
       Vars.push_back(RefExpr);
@@ -20431,7 +20508,7 @@ OMPClause *Sema::ActOnOpenMPLinearClause(
     if (DVar.RefExpr) {
       Diag(ELoc, diag::err_omp_wrong_dsa) << getOpenMPClauseName(DVar.CKind)
                                           << getOpenMPClauseName(OMPC_linear);
-      reportOriginalDsa(*this, DSAStack, D, DVar);
+      reportOriginalDsa(SemaRef, DSAStack, D, DVar);
       continue;
     }
 
@@ -20441,29 +20518,29 @@ OMPClause *Sema::ActOnOpenMPLinearClause(
 
     // Build private copy of original var.
     VarDecl *Private =
-        buildVarDecl(*this, ELoc, Type, D->getName(),
+        buildVarDecl(SemaRef, ELoc, Type, D->getName(),
                      D->hasAttrs() ? &D->getAttrs() : nullptr,
                      VD ? cast<DeclRefExpr>(SimpleRefExpr) : nullptr);
-    DeclRefExpr *PrivateRef = buildDeclRefExpr(*this, Private, Type, ELoc);
+    DeclRefExpr *PrivateRef = buildDeclRefExpr(SemaRef, Private, Type, ELoc);
     // Build var to save initial value.
-    VarDecl *Init = buildVarDecl(*this, ELoc, Type, ".linear.start");
+    VarDecl *Init = buildVarDecl(SemaRef, ELoc, Type, ".linear.start");
     Expr *InitExpr;
     DeclRefExpr *Ref = nullptr;
-    if (!VD && !CurContext->isDependentContext()) {
-      Ref = buildCapture(*this, D, SimpleRefExpr, /*WithInit=*/false);
+    if (!VD && !SemaRef.CurContext->isDependentContext()) {
+      Ref = buildCapture(SemaRef, D, SimpleRefExpr, /*WithInit=*/false);
       if (!isOpenMPCapturedDecl(D)) {
         ExprCaptures.push_back(Ref->getDecl());
         if (Ref->getDecl()->hasAttr<OMPCaptureNoInitAttr>()) {
-          ExprResult RefRes = DefaultLvalueConversion(Ref);
+          ExprResult RefRes = SemaRef.DefaultLvalueConversion(Ref);
           if (!RefRes.isUsable())
             continue;
           ExprResult PostUpdateRes =
-              BuildBinOp(DSAStack->getCurScope(), ELoc, BO_Assign,
-                         SimpleRefExpr, RefRes.get());
+              SemaRef.BuildBinOp(DSAStack->getCurScope(), ELoc, BO_Assign,
+                                 SimpleRefExpr, RefRes.get());
           if (!PostUpdateRes.isUsable())
             continue;
           ExprPostUpdates.push_back(
-              IgnoredValueConversions(PostUpdateRes.get()).get());
+              SemaRef.IgnoredValueConversions(PostUpdateRes.get()).get());
         }
       }
     }
@@ -20471,12 +20548,13 @@ OMPClause *Sema::ActOnOpenMPLinearClause(
       InitExpr = VD ? VD->getInit() : SimpleRefExpr;
     else
       InitExpr = VD ? SimpleRefExpr : Ref;
-    AddInitializerToDecl(Init, DefaultLvalueConversion(InitExpr).get(),
-                         /*DirectInit=*/false);
-    DeclRefExpr *InitRef = buildDeclRefExpr(*this, Init, Type, ELoc);
+    SemaRef.AddInitializerToDecl(
+        Init, SemaRef.DefaultLvalueConversion(InitExpr).get(),
+        /*DirectInit=*/false);
+    DeclRefExpr *InitRef = buildDeclRefExpr(SemaRef, Init, Type, ELoc);
 
     DSAStack->addDSA(D, RefExpr->IgnoreParens(), OMPC_linear, Ref);
-    Vars.push_back((VD || CurContext->isDependentContext())
+    Vars.push_back((VD || SemaRef.CurContext->isDependentContext())
                        ? RefExpr->IgnoreParens()
                        : Ref);
     Privates.push_back(PrivateRef);
@@ -20499,17 +20577,18 @@ OMPClause *Sema::ActOnOpenMPLinearClause(
 
     // Build var to save the step value.
     VarDecl *SaveVar =
-        buildVarDecl(*this, StepLoc, StepExpr->getType(), ".linear.step");
+        buildVarDecl(SemaRef, StepLoc, StepExpr->getType(), ".linear.step");
     ExprResult SaveRef =
-        buildDeclRefExpr(*this, SaveVar, StepExpr->getType(), StepLoc);
-    ExprResult CalcStep =
-        BuildBinOp(CurScope, StepLoc, BO_Assign, SaveRef.get(), StepExpr);
-    CalcStep = ActOnFinishFullExpr(CalcStep.get(), /*DiscardedValue*/ false);
+        buildDeclRefExpr(SemaRef, SaveVar, StepExpr->getType(), StepLoc);
+    ExprResult CalcStep = SemaRef.BuildBinOp(
+        SemaRef.getCurScope(), StepLoc, BO_Assign, SaveRef.get(), StepExpr);
+    CalcStep =
+        SemaRef.ActOnFinishFullExpr(CalcStep.get(), /*DiscardedValue*/ false);
 
     // Warn about zero linear step (it would be probably better specified as
     // making corresponding variables 'const').
     if (std::optional<llvm::APSInt> Result =
-            StepExpr->getIntegerConstantExpr(Context)) {
+            StepExpr->getIntegerConstantExpr(getASTContext())) {
       if (!Result->isNegative() && !Result->isStrictlyPositive())
         Diag(StepLoc, diag::warn_omp_linear_step_zero)
             << Vars[0] << (Vars.size() > 1);
@@ -20520,11 +20599,11 @@ OMPClause *Sema::ActOnOpenMPLinearClause(
     }
   }
 
-  return OMPLinearClause::Create(Context, StartLoc, LParenLoc, LinKind, LinLoc,
-                                 ColonLoc, StepModifierLoc, EndLoc, Vars,
-                                 Privates, Inits, StepExpr, CalcStepExpr,
-                                 buildPreInits(Context, ExprCaptures),
-                                 buildPostUpdate(*this, ExprPostUpdates));
+  return OMPLinearClause::Create(getASTContext(), StartLoc, LParenLoc, LinKind,
+                                 LinLoc, ColonLoc, StepModifierLoc, EndLoc,
+                                 Vars, Privates, Inits, StepExpr, CalcStepExpr,
+                                 buildPreInits(getASTContext(), ExprCaptures),
+                                 buildPostUpdate(SemaRef, ExprPostUpdates));
 }
 
 static bool FinishOpenMPLinearClause(OMPLinearClause &Clause, DeclRefExpr *IV,
@@ -20630,7 +20709,7 @@ static bool FinishOpenMPLinearClause(OMPLinearClause &Clause, DeclRefExpr *IV,
   return HasErrors;
 }
 
-OMPClause *Sema::ActOnOpenMPAlignedClause(
+OMPClause *SemaOpenMP::ActOnOpenMPAlignedClause(
     ArrayRef<Expr *> VarList, Expr *Alignment, SourceLocation StartLoc,
     SourceLocation LParenLoc, SourceLocation ColonLoc, SourceLocation EndLoc) {
   SmallVector<Expr *, 8> Vars;
@@ -20639,7 +20718,7 @@ OMPClause *Sema::ActOnOpenMPAlignedClause(
     SourceLocation ELoc;
     SourceRange ERange;
     Expr *SimpleRefExpr = RefExpr;
-    auto Res = getPrivateItem(*this, SimpleRefExpr, ELoc, ERange);
+    auto Res = getPrivateItem(SemaRef, SimpleRefExpr, ELoc, ERange);
     if (Res.second) {
       // It will be analyzed later.
       Vars.push_back(RefExpr);
@@ -20659,7 +20738,7 @@ OMPClause *Sema::ActOnOpenMPAlignedClause(
     if (!Ty || (!Ty->isArrayType() && !Ty->isPointerType())) {
       Diag(ELoc, diag::err_omp_aligned_expected_array_or_ptr)
           << QType << getLangOpts().CPlusPlus << ERange;
-      bool IsDecl = !VD || VD->isThisDeclarationADefinition(Context) ==
+      bool IsDecl = !VD || VD->isThisDeclarationADefinition(getASTContext()) ==
                                VarDecl::DeclarationOnly;
       Diag(D->getLocation(),
            IsDecl ? diag::note_previous_decl : diag::note_defined_here)
@@ -20679,9 +20758,10 @@ OMPClause *Sema::ActOnOpenMPAlignedClause(
 
     DeclRefExpr *Ref = nullptr;
     if (!VD && isOpenMPCapturedDecl(D))
-      Ref = buildCapture(*this, D, SimpleRefExpr, /*WithInit=*/true);
-    Vars.push_back(DefaultFunctionArrayConversion(
-                       (VD || !Ref) ? RefExpr->IgnoreParens() : Ref)
+      Ref = buildCapture(SemaRef, D, SimpleRefExpr, /*WithInit=*/true);
+    Vars.push_back(SemaRef
+                       .DefaultFunctionArrayConversion(
+                           (VD || !Ref) ? RefExpr->IgnoreParens() : Ref)
                        .get());
   }
 
@@ -20700,14 +20780,14 @@ OMPClause *Sema::ActOnOpenMPAlignedClause(
   if (Vars.empty())
     return nullptr;
 
-  return OMPAlignedClause::Create(Context, StartLoc, LParenLoc, ColonLoc,
-                                  EndLoc, Vars, Alignment);
+  return OMPAlignedClause::Create(getASTContext(), StartLoc, LParenLoc,
+                                  ColonLoc, EndLoc, Vars, Alignment);
 }
 
-OMPClause *Sema::ActOnOpenMPCopyinClause(ArrayRef<Expr *> VarList,
-                                         SourceLocation StartLoc,
-                                         SourceLocation LParenLoc,
-                                         SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPCopyinClause(ArrayRef<Expr *> VarList,
+                                               SourceLocation StartLoc,
+                                               SourceLocation LParenLoc,
+                                               SourceLocation EndLoc) {
   SmallVector<Expr *, 8> Vars;
   SmallVector<Expr *, 8> SrcExprs;
   SmallVector<Expr *, 8> DstExprs;
@@ -20761,26 +20841,28 @@ OMPClause *Sema::ActOnOpenMPCopyinClause(ArrayRef<Expr *> VarList,
     //  A variable of class type (or array thereof) that appears in a
     //  copyin clause requires an accessible, unambiguous copy assignment
     //  operator for the class type.
-    QualType ElemType = Context.getBaseElementType(Type).getNonReferenceType();
+    QualType ElemType =
+        getASTContext().getBaseElementType(Type).getNonReferenceType();
     VarDecl *SrcVD =
-        buildVarDecl(*this, DE->getBeginLoc(), ElemType.getUnqualifiedType(),
+        buildVarDecl(SemaRef, DE->getBeginLoc(), ElemType.getUnqualifiedType(),
                      ".copyin.src", VD->hasAttrs() ? &VD->getAttrs() : nullptr);
     DeclRefExpr *PseudoSrcExpr = buildDeclRefExpr(
-        *this, SrcVD, ElemType.getUnqualifiedType(), DE->getExprLoc());
+        SemaRef, SrcVD, ElemType.getUnqualifiedType(), DE->getExprLoc());
     VarDecl *DstVD =
-        buildVarDecl(*this, DE->getBeginLoc(), ElemType, ".copyin.dst",
+        buildVarDecl(SemaRef, DE->getBeginLoc(), ElemType, ".copyin.dst",
                      VD->hasAttrs() ? &VD->getAttrs() : nullptr);
     DeclRefExpr *PseudoDstExpr =
-        buildDeclRefExpr(*this, DstVD, ElemType, DE->getExprLoc());
+        buildDeclRefExpr(SemaRef, DstVD, ElemType, DE->getExprLoc());
     // For arrays generate assignment operation for single element and replace
     // it by the original array element in CodeGen.
     ExprResult AssignmentOp =
-        BuildBinOp(/*S=*/nullptr, DE->getExprLoc(), BO_Assign, PseudoDstExpr,
-                   PseudoSrcExpr);
+        SemaRef.BuildBinOp(/*S=*/nullptr, DE->getExprLoc(), BO_Assign,
+                           PseudoDstExpr, PseudoSrcExpr);
     if (AssignmentOp.isInvalid())
       continue;
-    AssignmentOp = ActOnFinishFullExpr(AssignmentOp.get(), DE->getExprLoc(),
-                                       /*DiscardedValue*/ false);
+    AssignmentOp =
+        SemaRef.ActOnFinishFullExpr(AssignmentOp.get(), DE->getExprLoc(),
+                                    /*DiscardedValue*/ false);
     if (AssignmentOp.isInvalid())
       continue;
 
@@ -20794,14 +20876,14 @@ OMPClause *Sema::ActOnOpenMPCopyinClause(ArrayRef<Expr *> VarList,
   if (Vars.empty())
     return nullptr;
 
-  return OMPCopyinClause::Create(Context, StartLoc, LParenLoc, EndLoc, Vars,
-                                 SrcExprs, DstExprs, AssignmentOps);
+  return OMPCopyinClause::Create(getASTContext(), StartLoc, LParenLoc, EndLoc,
+                                 Vars, SrcExprs, DstExprs, AssignmentOps);
 }
 
-OMPClause *Sema::ActOnOpenMPCopyprivateClause(ArrayRef<Expr *> VarList,
-                                              SourceLocation StartLoc,
-                                              SourceLocation LParenLoc,
-                                              SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPCopyprivateClause(ArrayRef<Expr *> VarList,
+                                                    SourceLocation StartLoc,
+                                                    SourceLocation LParenLoc,
+                                                    SourceLocation EndLoc) {
   SmallVector<Expr *, 8> Vars;
   SmallVector<Expr *, 8> SrcExprs;
   SmallVector<Expr *, 8> DstExprs;
@@ -20811,7 +20893,7 @@ OMPClause *Sema::ActOnOpenMPCopyprivateClause(ArrayRef<Expr *> VarList,
     SourceLocation ELoc;
     SourceRange ERange;
     Expr *SimpleRefExpr = RefExpr;
-    auto Res = getPrivateItem(*this, SimpleRefExpr, ELoc, ERange);
+    auto Res = getPrivateItem(SemaRef, SimpleRefExpr, ELoc, ERange);
     if (Res.second) {
       // It will be analyzed later.
       Vars.push_back(RefExpr);
@@ -20837,7 +20919,7 @@ OMPClause *Sema::ActOnOpenMPCopyprivateClause(ArrayRef<Expr *> VarList,
         Diag(ELoc, diag::err_omp_wrong_dsa)
             << getOpenMPClauseName(DVar.CKind)
             << getOpenMPClauseName(OMPC_copyprivate);
-        reportOriginalDsa(*this, DSAStack, D, DVar);
+        reportOriginalDsa(SemaRef, DSAStack, D, DVar);
         continue;
       }
 
@@ -20850,7 +20932,7 @@ OMPClause *Sema::ActOnOpenMPCopyprivateClause(ArrayRef<Expr *> VarList,
           Diag(ELoc, diag::err_omp_required_access)
               << getOpenMPClauseName(OMPC_copyprivate)
               << "threadprivate or private in the enclosing context";
-          reportOriginalDsa(*this, DSAStack, D, DVar);
+          reportOriginalDsa(SemaRef, DSAStack, D, DVar);
           continue;
         }
       }
@@ -20861,7 +20943,7 @@ OMPClause *Sema::ActOnOpenMPCopyprivateClause(ArrayRef<Expr *> VarList,
       Diag(ELoc, diag::err_omp_variably_modified_type_not_supported)
           << getOpenMPClauseName(OMPC_copyprivate) << Type
           << getOpenMPDirectiveName(DSAStack->getCurrentDirective());
-      bool IsDecl = !VD || VD->isThisDeclarationADefinition(Context) ==
+      bool IsDecl = !VD || VD->isThisDeclarationADefinition(getASTContext()) ==
                                VarDecl::DeclarationOnly;
       Diag(D->getLocation(),
            IsDecl ? diag::note_previous_decl : diag::note_defined_here)
@@ -20873,22 +20955,23 @@ OMPClause *Sema::ActOnOpenMPCopyprivateClause(ArrayRef<Expr *> VarList,
     //  A variable of class type (or array thereof) that appears in a
     //  copyin clause requires an accessible, unambiguous copy assignment
     //  operator for the class type.
-    Type = Context.getBaseElementType(Type.getNonReferenceType())
+    Type = getASTContext()
+               .getBaseElementType(Type.getNonReferenceType())
                .getUnqualifiedType();
     VarDecl *SrcVD =
-        buildVarDecl(*this, RefExpr->getBeginLoc(), Type, ".copyprivate.src",
+        buildVarDecl(SemaRef, RefExpr->getBeginLoc(), Type, ".copyprivate.src",
                      D->hasAttrs() ? &D->getAttrs() : nullptr);
-    DeclRefExpr *PseudoSrcExpr = buildDeclRefExpr(*this, SrcVD, Type, ELoc);
+    DeclRefExpr *PseudoSrcExpr = buildDeclRefExpr(SemaRef, SrcVD, Type, ELoc);
     VarDecl *DstVD =
-        buildVarDecl(*this, RefExpr->getBeginLoc(), Type, ".copyprivate.dst",
+        buildVarDecl(SemaRef, RefExpr->getBeginLoc(), Type, ".copyprivate.dst",
                      D->hasAttrs() ? &D->getAttrs() : nullptr);
-    DeclRefExpr *PseudoDstExpr = buildDeclRefExpr(*this, DstVD, Type, ELoc);
-    ExprResult AssignmentOp = BuildBinOp(
+    DeclRefExpr *PseudoDstExpr = buildDeclRefExpr(SemaRef, DstVD, Type, ELoc);
+    ExprResult AssignmentOp = SemaRef.BuildBinOp(
         DSAStack->getCurScope(), ELoc, BO_Assign, PseudoDstExpr, PseudoSrcExpr);
     if (AssignmentOp.isInvalid())
       continue;
-    AssignmentOp =
-        ActOnFinishFullExpr(AssignmentOp.get(), ELoc, /*DiscardedValue*/ false);
+    AssignmentOp = SemaRef.ActOnFinishFullExpr(AssignmentOp.get(), ELoc,
+                                               /*DiscardedValue*/ false);
     if (AssignmentOp.isInvalid())
       continue;
 
@@ -20897,7 +20980,7 @@ OMPClause *Sema::ActOnOpenMPCopyprivateClause(ArrayRef<Expr *> VarList,
     assert(VD || isOpenMPCapturedDecl(D));
     Vars.push_back(
         VD ? RefExpr->IgnoreParens()
-           : buildCapture(*this, D, SimpleRefExpr, /*WithInit=*/false));
+           : buildCapture(SemaRef, D, SimpleRefExpr, /*WithInit=*/false));
     SrcExprs.push_back(PseudoSrcExpr);
     DstExprs.push_back(PseudoDstExpr);
     AssignmentOps.push_back(AssignmentOp.get());
@@ -20906,18 +20989,20 @@ OMPClause *Sema::ActOnOpenMPCopyprivateClause(ArrayRef<Expr *> VarList,
   if (Vars.empty())
     return nullptr;
 
-  return OMPCopyprivateClause::Create(Context, StartLoc, LParenLoc, EndLoc,
-                                      Vars, SrcExprs, DstExprs, AssignmentOps);
+  return OMPCopyprivateClause::Create(getASTContext(), StartLoc, LParenLoc,
+                                      EndLoc, Vars, SrcExprs, DstExprs,
+                                      AssignmentOps);
 }
 
-OMPClause *Sema::ActOnOpenMPFlushClause(ArrayRef<Expr *> VarList,
-                                        SourceLocation StartLoc,
-                                        SourceLocation LParenLoc,
-                                        SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPFlushClause(ArrayRef<Expr *> VarList,
+                                              SourceLocation StartLoc,
+                                              SourceLocation LParenLoc,
+                                              SourceLocation EndLoc) {
   if (VarList.empty())
     return nullptr;
 
-  return OMPFlushClause::Create(Context, StartLoc, LParenLoc, EndLoc, VarList);
+  return OMPFlushClause::Create(getASTContext(), StartLoc, LParenLoc, EndLoc,
+                                VarList);
 }
 
 /// Tries to find omp_depend_t. type.
@@ -20937,22 +21022,23 @@ static bool findOMPDependT(Sema &S, SourceLocation Loc, DSAStackTy *Stack,
   return true;
 }
 
-OMPClause *Sema::ActOnOpenMPDepobjClause(Expr *Depobj, SourceLocation StartLoc,
-                                         SourceLocation LParenLoc,
-                                         SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPDepobjClause(Expr *Depobj,
+                                               SourceLocation StartLoc,
+                                               SourceLocation LParenLoc,
+                                               SourceLocation EndLoc) {
   if (!Depobj)
     return nullptr;
 
-  bool OMPDependTFound = findOMPDependT(*this, StartLoc, DSAStack);
+  bool OMPDependTFound = findOMPDependT(SemaRef, StartLoc, DSAStack);
 
   // OpenMP 5.0, 2.17.10.1 depobj Construct
   // depobj is an lvalue expression of type omp_depend_t.
   if (!Depobj->isTypeDependent() && !Depobj->isValueDependent() &&
       !Depobj->isInstantiationDependent() &&
       !Depobj->containsUnexpandedParameterPack() &&
-      (OMPDependTFound &&
-       !Context.typesAreCompatible(DSAStack->getOMPDependT(), Depobj->getType(),
-                                   /*CompareUnqualified=*/true))) {
+      (OMPDependTFound && !getASTContext().typesAreCompatible(
+                              DSAStack->getOMPDependT(), Depobj->getType(),
+                              /*CompareUnqualified=*/true))) {
     Diag(Depobj->getExprLoc(), diag::err_omp_expected_omp_depend_t_lvalue)
         << 0 << Depobj->getType() << Depobj->getSourceRange();
   }
@@ -20962,7 +21048,8 @@ OMPClause *Sema::ActOnOpenMPDepobjClause(Expr *Depobj, SourceLocation StartLoc,
         << 1 << Depobj->getSourceRange();
   }
 
-  return OMPDepobjClause::Create(Context, StartLoc, LParenLoc, EndLoc, Depobj);
+  return OMPDepobjClause::Create(getASTContext(), StartLoc, LParenLoc, EndLoc,
+                                 Depobj);
 }
 
 namespace {
@@ -21062,8 +21149,9 @@ ProcessOpenMPDoacrossClauseCommon(Sema &SemaRef, bool IsSource,
         continue;
       }
       if (RHS) {
-        ExprResult RHSRes = SemaRef.VerifyPositiveIntegerConstantInClause(
-            RHS, OMPC_depend, /*StrictlyPositive=*/false);
+        ExprResult RHSRes =
+            SemaRef.OpenMP().VerifyPositiveIntegerConstantInClause(
+                RHS, OMPC_depend, /*StrictlyPositive=*/false);
         if (RHSRes.isInvalid())
           continue;
       }
@@ -21094,11 +21182,10 @@ ProcessOpenMPDoacrossClauseCommon(Sema &SemaRef, bool IsSource,
   return {Vars, OpsOffs, TotalDepCount};
 }
 
-OMPClause *
-Sema::ActOnOpenMPDependClause(const OMPDependClause::DependDataTy &Data,
-                              Expr *DepModifier, ArrayRef<Expr *> VarList,
-                              SourceLocation StartLoc, SourceLocation LParenLoc,
-                              SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPDependClause(
+    const OMPDependClause::DependDataTy &Data, Expr *DepModifier,
+    ArrayRef<Expr *> VarList, SourceLocation StartLoc, SourceLocation LParenLoc,
+    SourceLocation EndLoc) {
   OpenMPDependClauseKind DepKind = Data.DepKind;
   SourceLocation DepLoc = Data.DepLoc;
   if (DSAStack->getCurrentDirective() == OMPD_ordered &&
@@ -21116,17 +21203,18 @@ Sema::ActOnOpenMPDependClause(const OMPDependClause::DependDataTy &Data,
        DSAStack->getCurrentDirective() == OMPD_depobj) &&
       (DepKind == OMPC_DEPEND_unknown || DepKind == OMPC_DEPEND_source ||
        DepKind == OMPC_DEPEND_sink ||
-       ((LangOpts.OpenMP < 50 ||
+       ((getLangOpts().OpenMP < 50 ||
          DSAStack->getCurrentDirective() == OMPD_depobj) &&
         DepKind == OMPC_DEPEND_depobj))) {
     SmallVector<unsigned, 6> Except = {OMPC_DEPEND_source, OMPC_DEPEND_sink,
                                        OMPC_DEPEND_outallmemory,
                                        OMPC_DEPEND_inoutallmemory};
-    if (LangOpts.OpenMP < 50 || DSAStack->getCurrentDirective() == OMPD_depobj)
+    if (getLangOpts().OpenMP < 50 ||
+        DSAStack->getCurrentDirective() == OMPD_depobj)
       Except.push_back(OMPC_DEPEND_depobj);
-    if (LangOpts.OpenMP < 51)
+    if (getLangOpts().OpenMP < 51)
       Except.push_back(OMPC_DEPEND_inoutset);
-    std::string Expected = (LangOpts.OpenMP >= 50 && !DepModifier)
+    std::string Expected = (getLangOpts().OpenMP >= 50 && !DepModifier)
                                ? "depend modifier(iterator) or "
                                : "";
     Diag(DepLoc, diag::err_omp_unexpected_clause_value)
@@ -21152,7 +21240,7 @@ Sema::ActOnOpenMPDependClause(const OMPDependClause::DependDataTy &Data,
 
   if (DepKind == OMPC_DEPEND_sink || DepKind == OMPC_DEPEND_source) {
     DoacrossDataInfoTy VarOffset = ProcessOpenMPDoacrossClauseCommon(
-        *this, DepKind == OMPC_DEPEND_source, VarList, DSAStack, EndLoc);
+        SemaRef, DepKind == OMPC_DEPEND_source, VarList, DSAStack, EndLoc);
     Vars = VarOffset.Vars;
     OpsOffs = VarOffset.OpsOffs;
     TotalDepCount = VarOffset.TotalDepCount;
@@ -21168,9 +21256,9 @@ Sema::ActOnOpenMPDependClause(const OMPDependClause::DependDataTy &Data,
       SourceLocation ELoc = RefExpr->getExprLoc();
       Expr *SimpleExpr = RefExpr->IgnoreParenCasts();
       if (DepKind != OMPC_DEPEND_sink && DepKind != OMPC_DEPEND_source) {
-        bool OMPDependTFound = LangOpts.OpenMP >= 50;
+        bool OMPDependTFound = getLangOpts().OpenMP >= 50;
         if (OMPDependTFound)
-          OMPDependTFound = findOMPDependT(*this, StartLoc, DSAStack,
+          OMPDependTFound = findOMPDependT(SemaRef, StartLoc, DSAStack,
                                            DepKind == OMPC_DEPEND_depobj);
         if (DepKind == OMPC_DEPEND_depobj) {
           // OpenMP 5.0, 2.17.11 depend Clause, Restrictions, C/C++
@@ -21180,8 +21268,8 @@ Sema::ActOnOpenMPDependClause(const OMPDependClause::DependDataTy &Data,
               !RefExpr->isInstantiationDependent() &&
               !RefExpr->containsUnexpandedParameterPack() &&
               (OMPDependTFound &&
-               !Context.hasSameUnqualifiedType(DSAStack->getOMPDependT(),
-                                               RefExpr->getType()))) {
+               !getASTContext().hasSameUnqualifiedType(
+                   DSAStack->getOMPDependT(), RefExpr->getType()))) {
             Diag(ELoc, diag::err_omp_expected_omp_depend_t_lvalue)
                 << 0 << RefExpr->getType() << RefExpr->getSourceRange();
             continue;
@@ -21212,7 +21300,7 @@ Sema::ActOnOpenMPDependClause(const OMPDependClause::DependDataTy &Data,
             const Expr *Length = OASE->getLength();
             Expr::EvalResult Result;
             if (Length && !Length->isValueDependent() &&
-                Length->EvaluateAsInt(Result, Context) &&
+                Length->EvaluateAsInt(Result, getASTContext()) &&
                 Result.Val.getInt().isZero()) {
               Diag(ELoc,
                    diag::err_omp_depend_zero_length_array_section_not_allowed)
@@ -21232,8 +21320,9 @@ Sema::ActOnOpenMPDependClause(const OMPDependClause::DependDataTy &Data,
                (OMPDependTFound && DSAStack->getOMPDependT().getTypePtr() ==
                                        ExprTy.getTypePtr()))) {
             Diag(ELoc, diag::err_omp_expected_addressable_lvalue_or_array_item)
-                << (LangOpts.OpenMP >= 50 ? 1 : 0)
-                << (LangOpts.OpenMP >= 50 ? 1 : 0) << RefExpr->getSourceRange();
+                << (getLangOpts().OpenMP >= 50 ? 1 : 0)
+                << (getLangOpts().OpenMP >= 50 ? 1 : 0)
+                << RefExpr->getSourceRange();
             continue;
           }
 
@@ -21245,22 +21334,24 @@ Sema::ActOnOpenMPDependClause(const OMPDependClause::DependDataTy &Data,
                    ->isPointerType() &&
               !ASE->getBase()->getType().getNonReferenceType()->isArrayType()) {
             Diag(ELoc, diag::err_omp_expected_addressable_lvalue_or_array_item)
-                << (LangOpts.OpenMP >= 50 ? 1 : 0)
-                << (LangOpts.OpenMP >= 50 ? 1 : 0) << RefExpr->getSourceRange();
+                << (getLangOpts().OpenMP >= 50 ? 1 : 0)
+                << (getLangOpts().OpenMP >= 50 ? 1 : 0)
+                << RefExpr->getSourceRange();
             continue;
           }
 
           ExprResult Res;
           {
-            Sema::TentativeAnalysisScope Trap(*this);
-            Res = CreateBuiltinUnaryOp(ELoc, UO_AddrOf,
-                                       RefExpr->IgnoreParenImpCasts());
+            Sema::TentativeAnalysisScope Trap(SemaRef);
+            Res = SemaRef.CreateBuiltinUnaryOp(ELoc, UO_AddrOf,
+                                               RefExpr->IgnoreParenImpCasts());
           }
           if (!Res.isUsable() && !isa<OMPArraySectionExpr>(SimpleExpr) &&
               !isa<OMPArrayShapingExpr>(SimpleExpr)) {
             Diag(ELoc, diag::err_omp_expected_addressable_lvalue_or_array_item)
-                << (LangOpts.OpenMP >= 50 ? 1 : 0)
-                << (LangOpts.OpenMP >= 50 ? 1 : 0) << RefExpr->getSourceRange();
+                << (getLangOpts().OpenMP >= 50 ? 1 : 0)
+                << (getLangOpts().OpenMP >= 50 ? 1 : 0)
+                << RefExpr->getSourceRange();
             continue;
           }
         }
@@ -21275,7 +21366,7 @@ Sema::ActOnOpenMPDependClause(const OMPDependClause::DependDataTy &Data,
     return nullptr;
 
   auto *C = OMPDependClause::Create(
-      Context, StartLoc, LParenLoc, EndLoc,
+      getASTContext(), StartLoc, LParenLoc, EndLoc,
       {DepKind, DepLoc, Data.ColonLoc, Data.OmpAllMemoryLoc}, DepModifier, Vars,
       TotalDepCount.getZExtValue());
   if ((DepKind == OMPC_DEPEND_sink || DepKind == OMPC_DEPEND_source) &&
@@ -21284,12 +21375,11 @@ Sema::ActOnOpenMPDependClause(const OMPDependClause::DependDataTy &Data,
   return C;
 }
 
-OMPClause *Sema::ActOnOpenMPDeviceClause(OpenMPDeviceClauseModifier Modifier,
-                                         Expr *Device, SourceLocation StartLoc,
-                                         SourceLocation LParenLoc,
-                                         SourceLocation ModifierLoc,
-                                         SourceLocation EndLoc) {
-  assert((ModifierLoc.isInvalid() || LangOpts.OpenMP >= 50) &&
+OMPClause *SemaOpenMP::ActOnOpenMPDeviceClause(
+    OpenMPDeviceClauseModifier Modifier, Expr *Device, SourceLocation StartLoc,
+    SourceLocation LParenLoc, SourceLocation ModifierLoc,
+    SourceLocation EndLoc) {
+  assert((ModifierLoc.isInvalid() || getLangOpts().OpenMP >= 50) &&
          "Unexpected device modifier in OpenMP < 50.");
 
   bool ErrorFound = false;
@@ -21306,7 +21396,7 @@ OMPClause *Sema::ActOnOpenMPDeviceClause(OpenMPDeviceClauseModifier Modifier,
 
   // OpenMP [2.9.1, Restrictions]
   // The device expression must evaluate to a non-negative integer value.
-  ErrorFound = !isNonNegativeIntegerValue(ValExpr, *this, OMPC_device,
+  ErrorFound = !isNonNegativeIntegerValue(ValExpr, SemaRef, OMPC_device,
                                           /*StrictlyPositive=*/false) ||
                ErrorFound;
   if (ErrorFound)
@@ -21317,7 +21407,7 @@ OMPClause *Sema::ActOnOpenMPDeviceClause(OpenMPDeviceClauseModifier Modifier,
   // the reverse_offload clause must be specified.
   if (Modifier == OMPC_DEVICE_ancestor) {
     if (!DSAStack->hasRequiresDeclWithClause<OMPReverseOffloadClause>()) {
-      targetDiag(
+      SemaRef.targetDiag(
           StartLoc,
           diag::err_omp_device_ancestor_without_requires_reverse_offload);
       ErrorFound = true;
@@ -21326,15 +21416,16 @@ OMPClause *Sema::ActOnOpenMPDeviceClause(OpenMPDeviceClauseModifier Modifier,
 
   OpenMPDirectiveKind DKind = DSAStack->getCurrentDirective();
   OpenMPDirectiveKind CaptureRegion =
-      getOpenMPCaptureRegionForClause(DKind, OMPC_device, LangOpts.OpenMP);
-  if (CaptureRegion != OMPD_unknown && !CurContext->isDependentContext()) {
-    ValExpr = MakeFullExpr(ValExpr).get();
+      getOpenMPCaptureRegionForClause(DKind, OMPC_device, getLangOpts().OpenMP);
+  if (CaptureRegion != OMPD_unknown &&
+      !SemaRef.CurContext->isDependentContext()) {
+    ValExpr = SemaRef.MakeFullExpr(ValExpr).get();
     llvm::MapVector<const Expr *, DeclRefExpr *> Captures;
-    ValExpr = tryBuildCapture(*this, ValExpr, Captures).get();
-    HelperValStmt = buildPreInits(Context, Captures);
+    ValExpr = tryBuildCapture(SemaRef, ValExpr, Captures).get();
+    HelperValStmt = buildPreInits(getASTContext(), Captures);
   }
 
-  return new (Context)
+  return new (getASTContext())
       OMPDeviceClause(Modifier, ValExpr, HelperValStmt, CaptureRegion, StartLoc,
                       LParenLoc, ModifierLoc, EndLoc);
 }
@@ -22527,7 +22618,7 @@ static void checkMappableExpressionList(
   }
 }
 
-OMPClause *Sema::ActOnOpenMPMapClause(
+OMPClause *SemaOpenMP::ActOnOpenMPMapClause(
     Expr *IteratorModifier, ArrayRef<OpenMPMapModifierKind> MapTypeModifiers,
     ArrayRef<SourceLocation> MapTypeModifiersLoc,
     CXXScopeSpec &MapperIdScopeSpec, DeclarationNameInfo &MapperId,
@@ -22562,7 +22653,7 @@ OMPClause *Sema::ActOnOpenMPMapClause(
   }
 
   MappableVarListInfo MVLI(VarList);
-  checkMappableExpressionList(*this, DSAStack, OMPC_map, MVLI, Locs.StartLoc,
+  checkMappableExpressionList(SemaRef, DSAStack, OMPC_map, MVLI, Locs.StartLoc,
                               MapperIdScopeSpec, MapperId, UnresolvedMappers,
                               MapType, Modifiers, IsMapTypeImplicit,
                               NoDiagnose);
@@ -22570,17 +22661,17 @@ OMPClause *Sema::ActOnOpenMPMapClause(
   // We need to produce a map clause even if we don't have variables so that
   // other diagnostics related with non-existing map clauses are accurate.
   return OMPMapClause::Create(
-      Context, Locs, MVLI.ProcessedVarList, MVLI.VarBaseDeclarations,
+      getASTContext(), Locs, MVLI.ProcessedVarList, MVLI.VarBaseDeclarations,
       MVLI.VarComponents, MVLI.UDMapperList, IteratorModifier, Modifiers,
-      ModifiersLoc, MapperIdScopeSpec.getWithLocInContext(Context), MapperId,
-      MapType, IsMapTypeImplicit, MapLoc);
+      ModifiersLoc, MapperIdScopeSpec.getWithLocInContext(getASTContext()),
+      MapperId, MapType, IsMapTypeImplicit, MapLoc);
 }
 
-QualType Sema::ActOnOpenMPDeclareReductionType(SourceLocation TyLoc,
-                                               TypeResult ParsedType) {
+QualType SemaOpenMP::ActOnOpenMPDeclareReductionType(SourceLocation TyLoc,
+                                                     TypeResult ParsedType) {
   assert(ParsedType.isUsable());
 
-  QualType ReductionType = GetTypeFromParser(ParsedType.get());
+  QualType ReductionType = SemaRef.GetTypeFromParser(ParsedType.get());
   if (ReductionType.isNull())
     return QualType();
 
@@ -22608,15 +22699,17 @@ QualType Sema::ActOnOpenMPDeclareReductionType(SourceLocation TyLoc,
   return ReductionType;
 }
 
-Sema::DeclGroupPtrTy Sema::ActOnOpenMPDeclareReductionDirectiveStart(
+SemaOpenMP::DeclGroupPtrTy
+SemaOpenMP::ActOnOpenMPDeclareReductionDirectiveStart(
     Scope *S, DeclContext *DC, DeclarationName Name,
     ArrayRef<std::pair<QualType, SourceLocation>> ReductionTypes,
     AccessSpecifier AS, Decl *PrevDeclInScope) {
   SmallVector<Decl *, 8> Decls;
   Decls.reserve(ReductionTypes.size());
 
-  LookupResult Lookup(*this, Name, SourceLocation(), LookupOMPReductionName,
-                      forRedeclarationInCurContext());
+  LookupResult Lookup(SemaRef, Name, SourceLocation(),
+                      Sema::LookupOMPReductionName,
+                      SemaRef.forRedeclarationInCurContext());
   // [OpenMP 4.0], 2.15 declare reduction Directive, Restrictions
   // A reduction-identifier may not be re-declared in the current scope for the
   // same type or for a type that is compatible according to the base language
@@ -22627,12 +22720,12 @@ Sema::DeclGroupPtrTy Sema::ActOnOpenMPDeclareReductionDirectiveStart(
   if (S != nullptr) {
     // Find previous declaration with the same name not referenced in other
     // declarations.
-    FunctionScopeInfo *ParentFn = getEnclosingFunction();
+    FunctionScopeInfo *ParentFn = SemaRef.getEnclosingFunction();
     InCompoundScope =
         (ParentFn != nullptr) && !ParentFn->CompoundScopes.empty();
-    LookupName(Lookup, S);
-    FilterLookupForScope(Lookup, DC, S, /*ConsiderLinkage=*/false,
-                         /*AllowInlineNamespace=*/false);
+    SemaRef.LookupName(Lookup, S);
+    SemaRef.FilterLookupForScope(Lookup, DC, S, /*ConsiderLinkage=*/false,
+                                 /*AllowInlineNamespace=*/false);
     llvm::DenseMap<OMPDeclareReductionDecl *, bool> UsedAsPrevious;
     LookupResult::Filter Filter = Lookup.makeFilter();
     while (Filter.hasNext()) {
@@ -22675,8 +22768,8 @@ Sema::DeclGroupPtrTy Sema::ActOnOpenMPDeclareReductionDirectiveStart(
       Invalid = true;
     }
     PreviousRedeclTypes[TyData.first.getCanonicalType()] = TyData.second;
-    auto *DRD = OMPDeclareReductionDecl::Create(Context, DC, TyData.second,
-                                                Name, TyData.first, PrevDRD);
+    auto *DRD = OMPDeclareReductionDecl::Create(
+        getASTContext(), DC, TyData.second, Name, TyData.first, PrevDRD);
     DC->addDecl(DRD);
     DRD->setAccess(AS);
     Decls.push_back(DRD);
@@ -22687,24 +22780,24 @@ Sema::DeclGroupPtrTy Sema::ActOnOpenMPDeclareReductionDirectiveStart(
   }
 
   return DeclGroupPtrTy::make(
-      DeclGroupRef::Create(Context, Decls.begin(), Decls.size()));
+      DeclGroupRef::Create(getASTContext(), Decls.begin(), Decls.size()));
 }
 
-void Sema::ActOnOpenMPDeclareReductionCombinerStart(Scope *S, Decl *D) {
+void SemaOpenMP::ActOnOpenMPDeclareReductionCombinerStart(Scope *S, Decl *D) {
   auto *DRD = cast<OMPDeclareReductionDecl>(D);
 
   // Enter new function scope.
-  PushFunctionScope();
-  setFunctionHasBranchProtectedScope();
-  getCurFunction()->setHasOMPDeclareReductionCombiner();
+  SemaRef.PushFunctionScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
+  SemaRef.getCurFunction()->setHasOMPDeclareReductionCombiner();
 
   if (S != nullptr)
-    PushDeclContext(S, DRD);
+    SemaRef.PushDeclContext(S, DRD);
   else
-    CurContext = DRD;
+    SemaRef.CurContext = DRD;
 
-  PushExpressionEvaluationContext(
-      ExpressionEvaluationContext::PotentiallyEvaluated);
+  SemaRef.PushExpressionEvaluationContext(
+      Sema::ExpressionEvaluationContext::PotentiallyEvaluated);
 
   QualType ReductionType = DRD->getType();
   // Create 'T* omp_parm;T omp_in;'. All references to 'omp_in' will
@@ -22714,7 +22807,7 @@ void Sema::ActOnOpenMPDeclareReductionCombinerStart(Scope *S, Decl *D) {
   // pointers.
   // Create 'T omp_in;' variable.
   VarDecl *OmpInParm =
-      buildVarDecl(*this, D->getLocation(), ReductionType, "omp_in");
+      buildVarDecl(SemaRef, D->getLocation(), ReductionType, "omp_in");
   // Create 'T* omp_parm;T omp_out;'. All references to 'omp_out' will
   // be replaced by '*omp_parm' during codegen. This required because 'omp_out'
   // uses semantics of argument handles by value, but it should be passed by
@@ -22722,28 +22815,29 @@ void Sema::ActOnOpenMPDeclareReductionCombinerStart(Scope *S, Decl *D) {
   // pointers.
   // Create 'T omp_out;' variable.
   VarDecl *OmpOutParm =
-      buildVarDecl(*this, D->getLocation(), ReductionType, "omp_out");
+      buildVarDecl(SemaRef, D->getLocation(), ReductionType, "omp_out");
   if (S != nullptr) {
-    PushOnScopeChains(OmpInParm, S);
-    PushOnScopeChains(OmpOutParm, S);
+    SemaRef.PushOnScopeChains(OmpInParm, S);
+    SemaRef.PushOnScopeChains(OmpOutParm, S);
   } else {
     DRD->addDecl(OmpInParm);
     DRD->addDecl(OmpOutParm);
   }
   Expr *InE =
-      ::buildDeclRefExpr(*this, OmpInParm, ReductionType, D->getLocation());
+      ::buildDeclRefExpr(SemaRef, OmpInParm, ReductionType, D->getLocation());
   Expr *OutE =
-      ::buildDeclRefExpr(*this, OmpOutParm, ReductionType, D->getLocation());
+      ::buildDeclRefExpr(SemaRef, OmpOutParm, ReductionType, D->getLocation());
   DRD->setCombinerData(InE, OutE);
 }
 
-void Sema::ActOnOpenMPDeclareReductionCombinerEnd(Decl *D, Expr *Combiner) {
+void SemaOpenMP::ActOnOpenMPDeclareReductionCombinerEnd(Decl *D,
+                                                        Expr *Combiner) {
   auto *DRD = cast<OMPDeclareReductionDecl>(D);
-  DiscardCleanupsInEvaluationContext();
-  PopExpressionEvaluationContext();
+  SemaRef.DiscardCleanupsInEvaluationContext();
+  SemaRef.PopExpressionEvaluationContext();
 
-  PopDeclContext();
-  PopFunctionScopeInfo();
+  SemaRef.PopDeclContext();
+  SemaRef.PopFunctionScopeInfo();
 
   if (Combiner != nullptr)
     DRD->setCombiner(Combiner);
@@ -22751,20 +22845,21 @@ void Sema::ActOnOpenMPDeclareReductionCombinerEnd(Decl *D, Expr *Combiner) {
     DRD->setInvalidDecl();
 }
 
-VarDecl *Sema::ActOnOpenMPDeclareReductionInitializerStart(Scope *S, Decl *D) {
+VarDecl *SemaOpenMP::ActOnOpenMPDeclareReductionInitializerStart(Scope *S,
+                                                                 Decl *D) {
   auto *DRD = cast<OMPDeclareReductionDecl>(D);
 
   // Enter new function scope.
-  PushFunctionScope();
-  setFunctionHasBranchProtectedScope();
+  SemaRef.PushFunctionScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
   if (S != nullptr)
-    PushDeclContext(S, DRD);
+    SemaRef.PushDeclContext(S, DRD);
   else
-    CurContext = DRD;
+    SemaRef.CurContext = DRD;
 
-  PushExpressionEvaluationContext(
-      ExpressionEvaluationContext::PotentiallyEvaluated);
+  SemaRef.PushExpressionEvaluationContext(
+      Sema::ExpressionEvaluationContext::PotentiallyEvaluated);
 
   QualType ReductionType = DRD->getType();
   // Create 'T* omp_parm;T omp_priv;'. All references to 'omp_priv' will
@@ -22774,7 +22869,7 @@ VarDecl *Sema::ActOnOpenMPDeclareReductionInitializerStart(Scope *S, Decl *D) {
   // pointers.
   // Create 'T omp_priv;' variable.
   VarDecl *OmpPrivParm =
-      buildVarDecl(*this, D->getLocation(), ReductionType, "omp_priv");
+      buildVarDecl(SemaRef, D->getLocation(), ReductionType, "omp_priv");
   // Create 'T* omp_parm;T omp_orig;'. All references to 'omp_orig' will
   // be replaced by '*omp_parm' during codegen. This required because 'omp_orig'
   // uses semantics of argument handles by value, but it should be passed by
@@ -22782,30 +22877,30 @@ VarDecl *Sema::ActOnOpenMPDeclareReductionInitializerStart(Scope *S, Decl *D) {
   // pointers.
   // Create 'T omp_orig;' variable.
   VarDecl *OmpOrigParm =
-      buildVarDecl(*this, D->getLocation(), ReductionType, "omp_orig");
+      buildVarDecl(SemaRef, D->getLocation(), ReductionType, "omp_orig");
   if (S != nullptr) {
-    PushOnScopeChains(OmpPrivParm, S);
-    PushOnScopeChains(OmpOrigParm, S);
+    SemaRef.PushOnScopeChains(OmpPrivParm, S);
+    SemaRef.PushOnScopeChains(OmpOrigParm, S);
   } else {
     DRD->addDecl(OmpPrivParm);
     DRD->addDecl(OmpOrigParm);
   }
   Expr *OrigE =
-      ::buildDeclRefExpr(*this, OmpOrigParm, ReductionType, D->getLocation());
+      ::buildDeclRefExpr(SemaRef, OmpOrigParm, ReductionType, D->getLocation());
   Expr *PrivE =
-      ::buildDeclRefExpr(*this, OmpPrivParm, ReductionType, D->getLocation());
+      ::buildDeclRefExpr(SemaRef, OmpPrivParm, ReductionType, D->getLocation());
   DRD->setInitializerData(OrigE, PrivE);
   return OmpPrivParm;
 }
 
-void Sema::ActOnOpenMPDeclareReductionInitializerEnd(Decl *D, Expr *Initializer,
-                                                     VarDecl *OmpPrivParm) {
+void SemaOpenMP::ActOnOpenMPDeclareReductionInitializerEnd(
+    Decl *D, Expr *Initializer, VarDecl *OmpPrivParm) {
   auto *DRD = cast<OMPDeclareReductionDecl>(D);
-  DiscardCleanupsInEvaluationContext();
-  PopExpressionEvaluationContext();
+  SemaRef.DiscardCleanupsInEvaluationContext();
+  SemaRef.PopExpressionEvaluationContext();
 
-  PopDeclContext();
-  PopFunctionScopeInfo();
+  SemaRef.PopDeclContext();
+  SemaRef.PopFunctionScopeInfo();
 
   if (Initializer != nullptr) {
     DRD->setInitializer(Initializer, OMPDeclareReductionInitKind::Call);
@@ -22819,13 +22914,13 @@ void Sema::ActOnOpenMPDeclareReductionInitializerEnd(Decl *D, Expr *Initializer,
   }
 }
 
-Sema::DeclGroupPtrTy Sema::ActOnOpenMPDeclareReductionDirectiveEnd(
+SemaOpenMP::DeclGroupPtrTy SemaOpenMP::ActOnOpenMPDeclareReductionDirectiveEnd(
     Scope *S, DeclGroupPtrTy DeclReductions, bool IsValid) {
   for (Decl *D : DeclReductions.get()) {
     if (IsValid) {
       if (S)
-        PushOnScopeChains(cast<OMPDeclareReductionDecl>(D), S,
-                          /*AddToContext=*/false);
+        SemaRef.PushOnScopeChains(cast<OMPDeclareReductionDecl>(D), S,
+                                  /*AddToContext=*/false);
     } else {
       D->setInvalidDecl();
     }
@@ -22833,25 +22928,26 @@ Sema::DeclGroupPtrTy Sema::ActOnOpenMPDeclareReductionDirectiveEnd(
   return DeclReductions;
 }
 
-TypeResult Sema::ActOnOpenMPDeclareMapperVarDecl(Scope *S, Declarator &D) {
-  TypeSourceInfo *TInfo = GetTypeForDeclarator(D);
+TypeResult SemaOpenMP::ActOnOpenMPDeclareMapperVarDecl(Scope *S,
+                                                       Declarator &D) {
+  TypeSourceInfo *TInfo = SemaRef.GetTypeForDeclarator(D);
   QualType T = TInfo->getType();
   if (D.isInvalidType())
     return true;
 
   if (getLangOpts().CPlusPlus) {
     // Check that there are no default arguments (C++ only).
-    CheckExtraCXXDefaultArguments(D);
+    SemaRef.CheckExtraCXXDefaultArguments(D);
   }
 
-  return CreateParsedType(T, TInfo);
+  return SemaRef.CreateParsedType(T, TInfo);
 }
 
-QualType Sema::ActOnOpenMPDeclareMapperType(SourceLocation TyLoc,
-                                            TypeResult ParsedType) {
+QualType SemaOpenMP::ActOnOpenMPDeclareMapperType(SourceLocation TyLoc,
+                                                  TypeResult ParsedType) {
   assert(ParsedType.isUsable() && "Expect usable parsed mapper type");
 
-  QualType MapperType = GetTypeFromParser(ParsedType.get());
+  QualType MapperType = SemaRef.GetTypeFromParser(ParsedType.get());
   assert(!MapperType.isNull() && "Expect valid mapper type");
 
   // [OpenMP 5.0], 2.19.7.3 declare mapper Directive, Restrictions
@@ -22863,12 +22959,13 @@ QualType Sema::ActOnOpenMPDeclareMapperType(SourceLocation TyLoc,
   return MapperType;
 }
 
-Sema::DeclGroupPtrTy Sema::ActOnOpenMPDeclareMapperDirective(
+SemaOpenMP::DeclGroupPtrTy SemaOpenMP::ActOnOpenMPDeclareMapperDirective(
     Scope *S, DeclContext *DC, DeclarationName Name, QualType MapperType,
     SourceLocation StartLoc, DeclarationName VN, AccessSpecifier AS,
     Expr *MapperVarRef, ArrayRef<OMPClause *> Clauses, Decl *PrevDeclInScope) {
-  LookupResult Lookup(*this, Name, SourceLocation(), LookupOMPMapperName,
-                      forRedeclarationInCurContext());
+  LookupResult Lookup(SemaRef, Name, SourceLocation(),
+                      Sema::LookupOMPMapperName,
+                      SemaRef.forRedeclarationInCurContext());
   // [OpenMP 5.0], 2.19.7.3 declare mapper Directive, Restrictions
   //  A mapper-identifier may not be redeclared in the current scope for the
   //  same type or for a type that is compatible according to the base language
@@ -22879,12 +22976,12 @@ Sema::DeclGroupPtrTy Sema::ActOnOpenMPDeclareMapperDirective(
   if (S != nullptr) {
     // Find previous declaration with the same name not referenced in other
     // declarations.
-    FunctionScopeInfo *ParentFn = getEnclosingFunction();
+    FunctionScopeInfo *ParentFn = SemaRef.getEnclosingFunction();
     InCompoundScope =
         (ParentFn != nullptr) && !ParentFn->CompoundScopes.empty();
-    LookupName(Lookup, S);
-    FilterLookupForScope(Lookup, DC, S, /*ConsiderLinkage=*/false,
-                         /*AllowInlineNamespace=*/false);
+    SemaRef.LookupName(Lookup, S);
+    SemaRef.FilterLookupForScope(Lookup, DC, S, /*ConsiderLinkage=*/false,
+                                 /*AllowInlineNamespace=*/false);
     llvm::DenseMap<OMPDeclareMapperDecl *, bool> UsedAsPrevious;
     LookupResult::Filter Filter = Lookup.makeFilter();
     while (Filter.hasNext()) {
@@ -22929,13 +23026,14 @@ Sema::DeclGroupPtrTy Sema::ActOnOpenMPDeclareMapperDirective(
   // mappers.
   SmallVector<OMPClause *, 4> ClausesWithImplicit(Clauses.begin(),
                                                   Clauses.end());
-  if (LangOpts.OpenMP >= 50)
-    processImplicitMapsWithDefaultMappers(*this, DSAStack, ClausesWithImplicit);
-  auto *DMD =
-      OMPDeclareMapperDecl::Create(Context, DC, StartLoc, Name, MapperType, VN,
-                                   ClausesWithImplicit, PrevDMD);
+  if (getLangOpts().OpenMP >= 50)
+    processImplicitMapsWithDefaultMappers(SemaRef, DSAStack,
+                                          ClausesWithImplicit);
+  auto *DMD = OMPDeclareMapperDecl::Create(getASTContext(), DC, StartLoc, Name,
+                                           MapperType, VN, ClausesWithImplicit,
+                                           PrevDMD);
   if (S)
-    PushOnScopeChains(DMD, S);
+    SemaRef.PushOnScopeChains(DMD, S);
   else
     DC->addDecl(DMD);
   DMD->setAccess(AS);
@@ -22951,105 +23049,106 @@ Sema::DeclGroupPtrTy Sema::ActOnOpenMPDeclareMapperDirective(
   return DeclGroupPtrTy::make(DeclGroupRef(DMD));
 }
 
-ExprResult
-Sema::ActOnOpenMPDeclareMapperDirectiveVarDecl(Scope *S, QualType MapperType,
-                                               SourceLocation StartLoc,
-                                               DeclarationName VN) {
+ExprResult SemaOpenMP::ActOnOpenMPDeclareMapperDirectiveVarDecl(
+    Scope *S, QualType MapperType, SourceLocation StartLoc,
+    DeclarationName VN) {
   TypeSourceInfo *TInfo =
-      Context.getTrivialTypeSourceInfo(MapperType, StartLoc);
-  auto *VD = VarDecl::Create(Context, Context.getTranslationUnitDecl(),
-                             StartLoc, StartLoc, VN.getAsIdentifierInfo(),
-                             MapperType, TInfo, SC_None);
+      getASTContext().getTrivialTypeSourceInfo(MapperType, StartLoc);
+  auto *VD = VarDecl::Create(
+      getASTContext(), getASTContext().getTranslationUnitDecl(), StartLoc,
+      StartLoc, VN.getAsIdentifierInfo(), MapperType, TInfo, SC_None);
   if (S)
-    PushOnScopeChains(VD, S, /*AddToContext=*/false);
-  Expr *E = buildDeclRefExpr(*this, VD, MapperType, StartLoc);
+    SemaRef.PushOnScopeChains(VD, S, /*AddToContext=*/false);
+  Expr *E = buildDeclRefExpr(SemaRef, VD, MapperType, StartLoc);
   DSAStack->addDeclareMapperVarRef(E);
   return E;
 }
 
-void Sema::ActOnOpenMPIteratorVarDecl(VarDecl *VD) {
+void SemaOpenMP::ActOnOpenMPIteratorVarDecl(VarDecl *VD) {
   if (DSAStack->getDeclareMapperVarRef())
     DSAStack->addIteratorVarDecl(VD);
 }
 
-bool Sema::isOpenMPDeclareMapperVarDeclAllowed(const VarDecl *VD) const {
-  assert(LangOpts.OpenMP && "Expected OpenMP mode.");
+bool SemaOpenMP::isOpenMPDeclareMapperVarDeclAllowed(const VarDecl *VD) const {
+  assert(getLangOpts().OpenMP && "Expected OpenMP mode.");
   const Expr *Ref = DSAStack->getDeclareMapperVarRef();
   if (const auto *DRE = cast_or_null<DeclRefExpr>(Ref)) {
     if (VD->getCanonicalDecl() == DRE->getDecl()->getCanonicalDecl())
       return true;
-    if (VD->isUsableInConstantExpressions(Context))
+    if (VD->isUsableInConstantExpressions(getASTContext()))
       return true;
-    if (LangOpts.OpenMP >= 52 && DSAStack->isIteratorVarDecl(VD))
+    if (getLangOpts().OpenMP >= 52 && DSAStack->isIteratorVarDecl(VD))
       return true;
     return false;
   }
   return true;
 }
 
-const ValueDecl *Sema::getOpenMPDeclareMapperVarName() const {
-  assert(LangOpts.OpenMP && "Expected OpenMP mode.");
+const ValueDecl *SemaOpenMP::getOpenMPDeclareMapperVarName() const {
+  assert(getLangOpts().OpenMP && "Expected OpenMP mode.");
   return cast<DeclRefExpr>(DSAStack->getDeclareMapperVarRef())->getDecl();
 }
 
-OMPClause *Sema::ActOnOpenMPNumTeamsClause(Expr *NumTeams,
-                                           SourceLocation StartLoc,
-                                           SourceLocation LParenLoc,
-                                           SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPNumTeamsClause(Expr *NumTeams,
+                                                 SourceLocation StartLoc,
+                                                 SourceLocation LParenLoc,
+                                                 SourceLocation EndLoc) {
   Expr *ValExpr = NumTeams;
   Stmt *HelperValStmt = nullptr;
 
   // OpenMP [teams Constrcut, Restrictions]
   // The num_teams expression must evaluate to a positive integer value.
-  if (!isNonNegativeIntegerValue(ValExpr, *this, OMPC_num_teams,
+  if (!isNonNegativeIntegerValue(ValExpr, SemaRef, OMPC_num_teams,
                                  /*StrictlyPositive=*/true))
     return nullptr;
 
   OpenMPDirectiveKind DKind = DSAStack->getCurrentDirective();
-  OpenMPDirectiveKind CaptureRegion =
-      getOpenMPCaptureRegionForClause(DKind, OMPC_num_teams, LangOpts.OpenMP);
-  if (CaptureRegion != OMPD_unknown && !CurContext->isDependentContext()) {
-    ValExpr = MakeFullExpr(ValExpr).get();
+  OpenMPDirectiveKind CaptureRegion = getOpenMPCaptureRegionForClause(
+      DKind, OMPC_num_teams, getLangOpts().OpenMP);
+  if (CaptureRegion != OMPD_unknown &&
+      !SemaRef.CurContext->isDependentContext()) {
+    ValExpr = SemaRef.MakeFullExpr(ValExpr).get();
     llvm::MapVector<const Expr *, DeclRefExpr *> Captures;
-    ValExpr = tryBuildCapture(*this, ValExpr, Captures).get();
-    HelperValStmt = buildPreInits(Context, Captures);
+    ValExpr = tryBuildCapture(SemaRef, ValExpr, Captures).get();
+    HelperValStmt = buildPreInits(getASTContext(), Captures);
   }
 
-  return new (Context) OMPNumTeamsClause(ValExpr, HelperValStmt, CaptureRegion,
-                                         StartLoc, LParenLoc, EndLoc);
+  return new (getASTContext()) OMPNumTeamsClause(
+      ValExpr, HelperValStmt, CaptureRegion, StartLoc, LParenLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPThreadLimitClause(Expr *ThreadLimit,
-                                              SourceLocation StartLoc,
-                                              SourceLocation LParenLoc,
-                                              SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPThreadLimitClause(Expr *ThreadLimit,
+                                                    SourceLocation StartLoc,
+                                                    SourceLocation LParenLoc,
+                                                    SourceLocation EndLoc) {
   Expr *ValExpr = ThreadLimit;
   Stmt *HelperValStmt = nullptr;
 
   // OpenMP [teams Constrcut, Restrictions]
   // The thread_limit expression must evaluate to a positive integer value.
-  if (!isNonNegativeIntegerValue(ValExpr, *this, OMPC_thread_limit,
+  if (!isNonNegativeIntegerValue(ValExpr, SemaRef, OMPC_thread_limit,
                                  /*StrictlyPositive=*/true))
     return nullptr;
 
   OpenMPDirectiveKind DKind = DSAStack->getCurrentDirective();
   OpenMPDirectiveKind CaptureRegion = getOpenMPCaptureRegionForClause(
-      DKind, OMPC_thread_limit, LangOpts.OpenMP);
-  if (CaptureRegion != OMPD_unknown && !CurContext->isDependentContext()) {
-    ValExpr = MakeFullExpr(ValExpr).get();
+      DKind, OMPC_thread_limit, getLangOpts().OpenMP);
+  if (CaptureRegion != OMPD_unknown &&
+      !SemaRef.CurContext->isDependentContext()) {
+    ValExpr = SemaRef.MakeFullExpr(ValExpr).get();
     llvm::MapVector<const Expr *, DeclRefExpr *> Captures;
-    ValExpr = tryBuildCapture(*this, ValExpr, Captures).get();
-    HelperValStmt = buildPreInits(Context, Captures);
+    ValExpr = tryBuildCapture(SemaRef, ValExpr, Captures).get();
+    HelperValStmt = buildPreInits(getASTContext(), Captures);
   }
 
-  return new (Context) OMPThreadLimitClause(
+  return new (getASTContext()) OMPThreadLimitClause(
       ValExpr, HelperValStmt, CaptureRegion, StartLoc, LParenLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPPriorityClause(Expr *Priority,
-                                           SourceLocation StartLoc,
-                                           SourceLocation LParenLoc,
-                                           SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPPriorityClause(Expr *Priority,
+                                                 SourceLocation StartLoc,
+                                                 SourceLocation LParenLoc,
+                                                 SourceLocation EndLoc) {
   Expr *ValExpr = Priority;
   Stmt *HelperValStmt = nullptr;
   OpenMPDirectiveKind CaptureRegion = OMPD_unknown;
@@ -23057,20 +23156,20 @@ OMPClause *Sema::ActOnOpenMPPriorityClause(Expr *Priority,
   // OpenMP [2.9.1, task Constrcut]
   // The priority-value is a non-negative numerical scalar expression.
   if (!isNonNegativeIntegerValue(
-          ValExpr, *this, OMPC_priority,
+          ValExpr, SemaRef, OMPC_priority,
           /*StrictlyPositive=*/false, /*BuildCapture=*/true,
           DSAStack->getCurrentDirective(), &CaptureRegion, &HelperValStmt))
     return nullptr;
 
-  return new (Context) OMPPriorityClause(ValExpr, HelperValStmt, CaptureRegion,
-                                         StartLoc, LParenLoc, EndLoc);
+  return new (getASTContext()) OMPPriorityClause(
+      ValExpr, HelperValStmt, CaptureRegion, StartLoc, LParenLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPGrainsizeClause(
+OMPClause *SemaOpenMP::ActOnOpenMPGrainsizeClause(
     OpenMPGrainsizeClauseModifier Modifier, Expr *Grainsize,
     SourceLocation StartLoc, SourceLocation LParenLoc,
     SourceLocation ModifierLoc, SourceLocation EndLoc) {
-  assert((ModifierLoc.isInvalid() || LangOpts.OpenMP >= 51) &&
+  assert((ModifierLoc.isInvalid() || getLangOpts().OpenMP >= 51) &&
          "Unexpected grainsize modifier in OpenMP < 51.");
 
   if (ModifierLoc.isValid() && Modifier == OMPC_GRAINSIZE_unknown) {
@@ -23088,23 +23187,23 @@ OMPClause *Sema::ActOnOpenMPGrainsizeClause(
   // OpenMP [2.9.2, taskloop Constrcut]
   // The parameter of the grainsize clause must be a positive integer
   // expression.
-  if (!isNonNegativeIntegerValue(ValExpr, *this, OMPC_grainsize,
+  if (!isNonNegativeIntegerValue(ValExpr, SemaRef, OMPC_grainsize,
                                  /*StrictlyPositive=*/true,
                                  /*BuildCapture=*/true,
                                  DSAStack->getCurrentDirective(),
                                  &CaptureRegion, &HelperValStmt))
     return nullptr;
 
-  return new (Context)
+  return new (getASTContext())
       OMPGrainsizeClause(Modifier, ValExpr, HelperValStmt, CaptureRegion,
                          StartLoc, LParenLoc, ModifierLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPNumTasksClause(
+OMPClause *SemaOpenMP::ActOnOpenMPNumTasksClause(
     OpenMPNumTasksClauseModifier Modifier, Expr *NumTasks,
     SourceLocation StartLoc, SourceLocation LParenLoc,
     SourceLocation ModifierLoc, SourceLocation EndLoc) {
-  assert((ModifierLoc.isInvalid() || LangOpts.OpenMP >= 51) &&
+  assert((ModifierLoc.isInvalid() || getLangOpts().OpenMP >= 51) &&
          "Unexpected num_tasks modifier in OpenMP < 51.");
 
   if (ModifierLoc.isValid() && Modifier == OMPC_NUMTASKS_unknown) {
@@ -23123,19 +23222,20 @@ OMPClause *Sema::ActOnOpenMPNumTasksClause(
   // The parameter of the num_tasks clause must be a positive integer
   // expression.
   if (!isNonNegativeIntegerValue(
-          ValExpr, *this, OMPC_num_tasks,
+          ValExpr, SemaRef, OMPC_num_tasks,
           /*StrictlyPositive=*/true, /*BuildCapture=*/true,
           DSAStack->getCurrentDirective(), &CaptureRegion, &HelperValStmt))
     return nullptr;
 
-  return new (Context)
+  return new (getASTContext())
       OMPNumTasksClause(Modifier, ValExpr, HelperValStmt, CaptureRegion,
                         StartLoc, LParenLoc, ModifierLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPHintClause(Expr *Hint, SourceLocation StartLoc,
-                                       SourceLocation LParenLoc,
-                                       SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPHintClause(Expr *Hint,
+                                             SourceLocation StartLoc,
+                                             SourceLocation LParenLoc,
+                                             SourceLocation EndLoc) {
   // OpenMP [2.13.2, critical construct, Description]
   // ... where hint-expression is an integer constant expression that evaluates
   // to a valid lock hint.
@@ -23143,7 +23243,7 @@ OMPClause *Sema::ActOnOpenMPHintClause(Expr *Hint, SourceLocation StartLoc,
       VerifyPositiveIntegerConstantInClause(Hint, OMPC_hint, false);
   if (HintExpr.isInvalid())
     return nullptr;
-  return new (Context)
+  return new (getASTContext())
       OMPHintClause(HintExpr.get(), StartLoc, LParenLoc, EndLoc);
 }
 
@@ -23163,13 +23263,14 @@ static bool findOMPEventHandleT(Sema &S, SourceLocation Loc,
   return true;
 }
 
-OMPClause *Sema::ActOnOpenMPDetachClause(Expr *Evt, SourceLocation StartLoc,
-                                         SourceLocation LParenLoc,
-                                         SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPDetachClause(Expr *Evt,
+                                               SourceLocation StartLoc,
+                                               SourceLocation LParenLoc,
+                                               SourceLocation EndLoc) {
   if (!Evt->isValueDependent() && !Evt->isTypeDependent() &&
       !Evt->isInstantiationDependent() &&
       !Evt->containsUnexpandedParameterPack()) {
-    if (!findOMPEventHandleT(*this, Evt->getExprLoc(), DSAStack))
+    if (!findOMPEventHandleT(SemaRef, Evt->getExprLoc(), DSAStack))
       return nullptr;
     // OpenMP 5.0, 2.10.1 task Construct.
     // event-handle is a variable of the omp_event_handle_t type.
@@ -23185,9 +23286,9 @@ OMPClause *Sema::ActOnOpenMPDetachClause(Expr *Evt, SourceLocation StartLoc,
           << "omp_event_handle_t" << 0 << Evt->getSourceRange();
       return nullptr;
     }
-    if (!Context.hasSameUnqualifiedType(DSAStack->getOMPEventHandleT(),
-                                        VD->getType()) ||
-        VD->getType().isConstant(Context)) {
+    if (!getASTContext().hasSameUnqualifiedType(DSAStack->getOMPEventHandleT(),
+                                                VD->getType()) ||
+        VD->getType().isConstant(getASTContext())) {
       Diag(Evt->getExprLoc(), diag::err_omp_var_expected)
           << "omp_event_handle_t" << 1 << VD->getType()
           << Evt->getSourceRange();
@@ -23202,15 +23303,16 @@ OMPClause *Sema::ActOnOpenMPDetachClause(Expr *Evt, SourceLocation StartLoc,
       Diag(Evt->getExprLoc(), diag::err_omp_wrong_dsa)
           << getOpenMPClauseName(DVar.CKind)
           << getOpenMPClauseName(OMPC_firstprivate);
-      reportOriginalDsa(*this, DSAStack, VD, DVar);
+      reportOriginalDsa(SemaRef, DSAStack, VD, DVar);
       return nullptr;
     }
   }
 
-  return new (Context) OMPDetachClause(Evt, StartLoc, LParenLoc, EndLoc);
+  return new (getASTContext())
+      OMPDetachClause(Evt, StartLoc, LParenLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPDistScheduleClause(
+OMPClause *SemaOpenMP::ActOnOpenMPDistScheduleClause(
     OpenMPDistScheduleClauseKind Kind, Expr *ChunkSize, SourceLocation StartLoc,
     SourceLocation LParenLoc, SourceLocation KindLoc, SourceLocation CommaLoc,
     SourceLocation EndLoc) {
@@ -23241,7 +23343,7 @@ OMPClause *Sema::ActOnOpenMPDistScheduleClause(
       //  chunk_size must be a loop invariant integer expression with a positive
       //  value.
       if (std::optional<llvm::APSInt> Result =
-              ValExpr->getIntegerConstantExpr(Context)) {
+              ValExpr->getIntegerConstantExpr(getASTContext())) {
         if (Result->isSigned() && !Result->isStrictlyPositive()) {
           Diag(ChunkSizeLoc, diag::err_omp_negative_expression_in_clause)
               << "dist_schedule" << ChunkSize->getSourceRange();
@@ -23249,22 +23351,22 @@ OMPClause *Sema::ActOnOpenMPDistScheduleClause(
         }
       } else if (getOpenMPCaptureRegionForClause(
                      DSAStack->getCurrentDirective(), OMPC_dist_schedule,
-                     LangOpts.OpenMP) != OMPD_unknown &&
-                 !CurContext->isDependentContext()) {
-        ValExpr = MakeFullExpr(ValExpr).get();
+                     getLangOpts().OpenMP) != OMPD_unknown &&
+                 !SemaRef.CurContext->isDependentContext()) {
+        ValExpr = SemaRef.MakeFullExpr(ValExpr).get();
         llvm::MapVector<const Expr *, DeclRefExpr *> Captures;
-        ValExpr = tryBuildCapture(*this, ValExpr, Captures).get();
-        HelperValStmt = buildPreInits(Context, Captures);
+        ValExpr = tryBuildCapture(SemaRef, ValExpr, Captures).get();
+        HelperValStmt = buildPreInits(getASTContext(), Captures);
       }
     }
   }
 
-  return new (Context)
+  return new (getASTContext())
       OMPDistScheduleClause(StartLoc, LParenLoc, KindLoc, CommaLoc, EndLoc,
                             Kind, ValExpr, HelperValStmt);
 }
 
-OMPClause *Sema::ActOnOpenMPDefaultmapClause(
+OMPClause *SemaOpenMP::ActOnOpenMPDefaultmapClause(
     OpenMPDefaultmapClauseModifier M, OpenMPDefaultmapClauseKind Kind,
     SourceLocation StartLoc, SourceLocation LParenLoc, SourceLocation MLoc,
     SourceLocation KindLoc, SourceLocation EndLoc) {
@@ -23291,10 +23393,10 @@ OMPClause *Sema::ActOnOpenMPDefaultmapClause(
   } else {
     bool isDefaultmapModifier = (M != OMPC_DEFAULTMAP_MODIFIER_unknown);
     bool isDefaultmapKind = (Kind != OMPC_DEFAULTMAP_unknown) ||
-                            (LangOpts.OpenMP >= 50 && KindLoc.isInvalid());
+                            (getLangOpts().OpenMP >= 50 && KindLoc.isInvalid());
     if (!isDefaultmapKind || !isDefaultmapModifier) {
       StringRef KindValue = "'scalar', 'aggregate', 'pointer'";
-      if (LangOpts.OpenMP == 50) {
+      if (getLangOpts().OpenMP == 50) {
         StringRef ModifierValue = "'alloc', 'from', 'to', 'tofrom', "
                                   "'firstprivate', 'none', 'default'";
         if (!isDefaultmapKind && isDefaultmapModifier) {
@@ -23346,13 +23448,13 @@ OMPClause *Sema::ActOnOpenMPDefaultmapClause(
     DSAStack->setDefaultDMAAttr(M, Kind, StartLoc);
   }
 
-  return new (Context)
+  return new (getASTContext())
       OMPDefaultmapClause(StartLoc, LParenLoc, MLoc, KindLoc, EndLoc, Kind, M);
 }
 
-bool Sema::ActOnStartOpenMPDeclareTargetContext(
+bool SemaOpenMP::ActOnStartOpenMPDeclareTargetContext(
     DeclareTargetContextInfo &DTCI) {
-  DeclContext *CurLexicalContext = getCurLexicalContext();
+  DeclContext *CurLexicalContext = SemaRef.getCurLexicalContext();
   if (!CurLexicalContext->isFileContext() &&
       !CurLexicalContext->isExternCContext() &&
       !CurLexicalContext->isExternCXXContext() &&
@@ -23372,20 +23474,20 @@ bool Sema::ActOnStartOpenMPDeclareTargetContext(
   return true;
 }
 
-const Sema::DeclareTargetContextInfo
-Sema::ActOnOpenMPEndDeclareTargetDirective() {
+const SemaOpenMP::DeclareTargetContextInfo
+SemaOpenMP::ActOnOpenMPEndDeclareTargetDirective() {
   assert(!DeclareTargetNesting.empty() &&
          "check isInOpenMPDeclareTargetContext() first!");
   return DeclareTargetNesting.pop_back_val();
 }
 
-void Sema::ActOnFinishedOpenMPDeclareTargetContext(
+void SemaOpenMP::ActOnFinishedOpenMPDeclareTargetContext(
     DeclareTargetContextInfo &DTCI) {
   for (auto &It : DTCI.ExplicitlyMapped)
     ActOnOpenMPDeclareTargetName(It.first, It.second.Loc, It.second.MT, DTCI);
 }
 
-void Sema::DiagnoseUnterminatedOpenMPDeclareTarget() {
+void SemaOpenMP::DiagnoseUnterminatedOpenMPDeclareTarget() {
   if (DeclareTargetNesting.empty())
     return;
   DeclareTargetContextInfo &DTCI = DeclareTargetNesting.back();
@@ -23393,23 +23495,23 @@ void Sema::DiagnoseUnterminatedOpenMPDeclareTarget() {
       << getOpenMPDirectiveName(DTCI.Kind);
 }
 
-NamedDecl *Sema::lookupOpenMPDeclareTargetName(Scope *CurScope,
-                                               CXXScopeSpec &ScopeSpec,
-                                               const DeclarationNameInfo &Id) {
-  LookupResult Lookup(*this, Id, LookupOrdinaryName);
-  LookupParsedName(Lookup, CurScope, &ScopeSpec, true);
+NamedDecl *SemaOpenMP::lookupOpenMPDeclareTargetName(
+    Scope *CurScope, CXXScopeSpec &ScopeSpec, const DeclarationNameInfo &Id) {
+  LookupResult Lookup(SemaRef, Id, Sema::LookupOrdinaryName);
+  SemaRef.LookupParsedName(Lookup, CurScope, &ScopeSpec, true);
 
   if (Lookup.isAmbiguous())
     return nullptr;
   Lookup.suppressDiagnostics();
 
   if (!Lookup.isSingleResult()) {
-    VarOrFuncDeclFilterCCC CCC(*this);
+    VarOrFuncDeclFilterCCC CCC(SemaRef);
     if (TypoCorrection Corrected =
-            CorrectTypo(Id, LookupOrdinaryName, CurScope, nullptr, CCC,
-                        CTK_ErrorRecovery)) {
-      diagnoseTypo(Corrected, PDiag(diag::err_undeclared_var_use_suggest)
-                                  << Id.getName());
+            SemaRef.CorrectTypo(Id, Sema::LookupOrdinaryName, CurScope, nullptr,
+                                CCC, Sema::CTK_ErrorRecovery)) {
+      SemaRef.diagnoseTypo(Corrected,
+                           SemaRef.PDiag(diag::err_undeclared_var_use_suggest)
+                               << Id.getName());
       checkDeclIsAllowedInOpenMPTarget(nullptr, Corrected.getCorrectionDecl());
       return nullptr;
     }
@@ -23427,9 +23529,9 @@ NamedDecl *Sema::lookupOpenMPDeclareTargetName(Scope *CurScope,
   return ND;
 }
 
-void Sema::ActOnOpenMPDeclareTargetName(NamedDecl *ND, SourceLocation Loc,
-                                        OMPDeclareTargetDeclAttr::MapTypeTy MT,
-                                        DeclareTargetContextInfo &DTCI) {
+void SemaOpenMP::ActOnOpenMPDeclareTargetName(
+    NamedDecl *ND, SourceLocation Loc, OMPDeclareTargetDeclAttr::MapTypeTy MT,
+    DeclareTargetContextInfo &DTCI) {
   assert((isa<VarDecl>(ND) || isa<FunctionDecl>(ND) ||
           isa<FunctionTemplateDecl>(ND)) &&
          "Expected variable, function or function template.");
@@ -23445,7 +23547,7 @@ void Sema::ActOnOpenMPDeclareTargetName(NamedDecl *ND, SourceLocation Loc,
   }
   // Diagnose marking after use as it may lead to incorrect diagnosis and
   // codegen.
-  if (LangOpts.OpenMP >= 50 &&
+  if (getLangOpts().OpenMP >= 50 &&
       (ND->isUsed(/*CheckUsedAttr=*/false) || ND->isReferenced()))
     Diag(Loc, diag::warn_omp_declare_target_after_first_use);
 
@@ -23484,14 +23586,14 @@ void Sema::ActOnOpenMPDeclareTargetName(NamedDecl *ND, SourceLocation Loc,
       IsIndirect = true;
   }
   auto *A = OMPDeclareTargetDeclAttr::CreateImplicit(
-      Context, MT, DTCI.DT, IndirectE, IsIndirect, Level,
+      getASTContext(), MT, DTCI.DT, IndirectE, IsIndirect, Level,
       SourceRange(Loc, Loc));
   ND->addAttr(A);
-  if (ASTMutationListener *ML = Context.getASTMutationListener())
+  if (ASTMutationListener *ML = getASTContext().getASTMutationListener())
     ML->DeclarationMarkedOpenMPDeclareTarget(ND, A);
   checkDeclIsAllowedInOpenMPTarget(nullptr, ND, Loc);
   if (auto *VD = dyn_cast<VarDecl>(ND);
-      LangOpts.OpenMP && VD && VD->hasAttr<OMPDeclareTargetDeclAttr>() &&
+      getLangOpts().OpenMP && VD && VD->hasAttr<OMPDeclareTargetDeclAttr>() &&
       VD->hasGlobalStorage())
     ActOnOpenMPDeclareTargetInitializer(ND);
 }
@@ -23535,8 +23637,8 @@ static bool checkValueDeclInTarget(SourceLocation SL, SourceRange SR,
                            /*FullCheck=*/false);
 }
 
-void Sema::checkDeclIsAllowedInOpenMPTarget(Expr *E, Decl *D,
-                                            SourceLocation IdLoc) {
+void SemaOpenMP::checkDeclIsAllowedInOpenMPTarget(Expr *E, Decl *D,
+                                                  SourceLocation IdLoc) {
   if (!D || D->isInvalidDecl())
     return;
   SourceRange SR = E ? E->getSourceRange() : D->getSourceRange();
@@ -23550,7 +23652,7 @@ void Sema::checkDeclIsAllowedInOpenMPTarget(Expr *E, Decl *D,
     // directive.
     if (DSAStack->isThreadPrivate(VD)) {
       Diag(SL, diag::err_omp_threadprivate_in_target);
-      reportOriginalDsa(*this, DSAStack, VD, DSAStack->getTopDSA(VD, false));
+      reportOriginalDsa(SemaRef, DSAStack, VD, DSAStack->getTopDSA(VD, false));
       return;
     }
   }
@@ -23569,7 +23671,7 @@ void Sema::checkDeclIsAllowedInOpenMPTarget(Expr *E, Decl *D,
     // Problem if any with var declared with incomplete type will be reported
     // as normal, so no need to check it here.
     if ((E || !VD->getType()->isIncompleteType()) &&
-        !checkValueDeclInTarget(SL, SR, *this, DSAStack, VD))
+        !checkValueDeclInTarget(SL, SR, SemaRef, DSAStack, VD))
       return;
     if (!E && isInOpenMPDeclareTargetContext()) {
       // Checking declaration inside declare target region.
@@ -23589,13 +23691,13 @@ void Sema::checkDeclIsAllowedInOpenMPTarget(Expr *E, Decl *D,
             IsIndirect = true;
         }
         auto *A = OMPDeclareTargetDeclAttr::CreateImplicit(
-            Context,
+            getASTContext(),
             getLangOpts().OpenMP >= 52 ? OMPDeclareTargetDeclAttr::MT_Enter
                                        : OMPDeclareTargetDeclAttr::MT_To,
             DTCI.DT, IndirectE, IsIndirect, Level,
             SourceRange(DTCI.Loc, DTCI.Loc));
         D->addAttr(A);
-        if (ASTMutationListener *ML = Context.getASTMutationListener())
+        if (ASTMutationListener *ML = getASTContext().getASTMutationListener())
           ML->DeclarationMarkedOpenMPDeclareTarget(D, A);
       }
       return;
@@ -23603,7 +23705,7 @@ void Sema::checkDeclIsAllowedInOpenMPTarget(Expr *E, Decl *D,
   }
   if (!E)
     return;
-  checkDeclInTargetContext(E->getExprLoc(), E->getSourceRange(), *this, D);
+  checkDeclInTargetContext(E->getExprLoc(), E->getSourceRange(), SemaRef, D);
 }
 
 /// This class visits every VarDecl that the initializer references and adds
@@ -23649,13 +23751,13 @@ public:
 /// Adding OMPDeclareTargetDeclAttr to variables with static storage
 /// duration that are referenced in the initializer expression list of
 /// variables with static storage duration in declare target directive.
-void Sema::ActOnOpenMPDeclareTargetInitializer(Decl *TargetDecl) {
+void SemaOpenMP::ActOnOpenMPDeclareTargetInitializer(Decl *TargetDecl) {
   GlobalDeclRefChecker Checker;
   if (isa<VarDecl>(TargetDecl))
     Checker.declareTargetInitializer(TargetDecl);
 }
 
-OMPClause *Sema::ActOnOpenMPToClause(
+OMPClause *SemaOpenMP::ActOnOpenMPToClause(
     ArrayRef<OpenMPMotionModifierKind> MotionModifiers,
     ArrayRef<SourceLocation> MotionModifiersLoc,
     CXXScopeSpec &MapperIdScopeSpec, DeclarationNameInfo &MapperId,
@@ -23681,18 +23783,18 @@ OMPClause *Sema::ActOnOpenMPToClause(
   }
 
   MappableVarListInfo MVLI(VarList);
-  checkMappableExpressionList(*this, DSAStack, OMPC_to, MVLI, Locs.StartLoc,
+  checkMappableExpressionList(SemaRef, DSAStack, OMPC_to, MVLI, Locs.StartLoc,
                               MapperIdScopeSpec, MapperId, UnresolvedMappers);
   if (MVLI.ProcessedVarList.empty())
     return nullptr;
 
   return OMPToClause::Create(
-      Context, Locs, MVLI.ProcessedVarList, MVLI.VarBaseDeclarations,
+      getASTContext(), Locs, MVLI.ProcessedVarList, MVLI.VarBaseDeclarations,
       MVLI.VarComponents, MVLI.UDMapperList, Modifiers, ModifiersLoc,
-      MapperIdScopeSpec.getWithLocInContext(Context), MapperId);
+      MapperIdScopeSpec.getWithLocInContext(getASTContext()), MapperId);
 }
 
-OMPClause *Sema::ActOnOpenMPFromClause(
+OMPClause *SemaOpenMP::ActOnOpenMPFromClause(
     ArrayRef<OpenMPMotionModifierKind> MotionModifiers,
     ArrayRef<SourceLocation> MotionModifiersLoc,
     CXXScopeSpec &MapperIdScopeSpec, DeclarationNameInfo &MapperId,
@@ -23718,19 +23820,20 @@ OMPClause *Sema::ActOnOpenMPFromClause(
   }
 
   MappableVarListInfo MVLI(VarList);
-  checkMappableExpressionList(*this, DSAStack, OMPC_from, MVLI, Locs.StartLoc,
+  checkMappableExpressionList(SemaRef, DSAStack, OMPC_from, MVLI, Locs.StartLoc,
                               MapperIdScopeSpec, MapperId, UnresolvedMappers);
   if (MVLI.ProcessedVarList.empty())
     return nullptr;
 
   return OMPFromClause::Create(
-      Context, Locs, MVLI.ProcessedVarList, MVLI.VarBaseDeclarations,
+      getASTContext(), Locs, MVLI.ProcessedVarList, MVLI.VarBaseDeclarations,
       MVLI.VarComponents, MVLI.UDMapperList, Modifiers, ModifiersLoc,
-      MapperIdScopeSpec.getWithLocInContext(Context), MapperId);
+      MapperIdScopeSpec.getWithLocInContext(getASTContext()), MapperId);
 }
 
-OMPClause *Sema::ActOnOpenMPUseDevicePtrClause(ArrayRef<Expr *> VarList,
-                                               const OMPVarListLocTy &Locs) {
+OMPClause *
+SemaOpenMP::ActOnOpenMPUseDevicePtrClause(ArrayRef<Expr *> VarList,
+                                          const OMPVarListLocTy &Locs) {
   MappableVarListInfo MVLI(VarList);
   SmallVector<Expr *, 8> PrivateCopies;
   SmallVector<Expr *, 8> Inits;
@@ -23740,7 +23843,7 @@ OMPClause *Sema::ActOnOpenMPUseDevicePtrClause(ArrayRef<Expr *> VarList,
     SourceLocation ELoc;
     SourceRange ERange;
     Expr *SimpleRefExpr = RefExpr;
-    auto Res = getPrivateItem(*this, SimpleRefExpr, ELoc, ERange);
+    auto Res = getPrivateItem(SemaRef, SimpleRefExpr, ELoc, ERange);
     if (Res.second) {
       // It will be analyzed later.
       MVLI.ProcessedVarList.push_back(RefExpr);
@@ -23765,30 +23868,30 @@ OMPClause *Sema::ActOnOpenMPUseDevicePtrClause(ArrayRef<Expr *> VarList,
 
     // Build the private variable and the expression that refers to it.
     auto VDPrivate =
-        buildVarDecl(*this, ELoc, Type, D->getName(),
+        buildVarDecl(SemaRef, ELoc, Type, D->getName(),
                      D->hasAttrs() ? &D->getAttrs() : nullptr,
                      VD ? cast<DeclRefExpr>(SimpleRefExpr) : nullptr);
     if (VDPrivate->isInvalidDecl())
       continue;
 
-    CurContext->addDecl(VDPrivate);
+    SemaRef.CurContext->addDecl(VDPrivate);
     DeclRefExpr *VDPrivateRefExpr = buildDeclRefExpr(
-        *this, VDPrivate, RefExpr->getType().getUnqualifiedType(), ELoc);
+        SemaRef, VDPrivate, RefExpr->getType().getUnqualifiedType(), ELoc);
 
     // Add temporary variable to initialize the private copy of the pointer.
     VarDecl *VDInit =
-        buildVarDecl(*this, RefExpr->getExprLoc(), Type, ".devptr.temp");
+        buildVarDecl(SemaRef, RefExpr->getExprLoc(), Type, ".devptr.temp");
     DeclRefExpr *VDInitRefExpr = buildDeclRefExpr(
-        *this, VDInit, RefExpr->getType(), RefExpr->getExprLoc());
-    AddInitializerToDecl(VDPrivate,
-                         DefaultLvalueConversion(VDInitRefExpr).get(),
-                         /*DirectInit=*/false);
+        SemaRef, VDInit, RefExpr->getType(), RefExpr->getExprLoc());
+    SemaRef.AddInitializerToDecl(
+        VDPrivate, SemaRef.DefaultLvalueConversion(VDInitRefExpr).get(),
+        /*DirectInit=*/false);
 
     // If required, build a capture to implement the privatization initialized
     // with the current list item value.
     DeclRefExpr *Ref = nullptr;
     if (!VD)
-      Ref = buildCapture(*this, D, SimpleRefExpr, /*WithInit=*/true);
+      Ref = buildCapture(SemaRef, D, SimpleRefExpr, /*WithInit=*/true);
     MVLI.ProcessedVarList.push_back(VD ? RefExpr->IgnoreParens() : Ref);
     PrivateCopies.push_back(VDPrivateRefExpr);
     Inits.push_back(VDInitRefExpr);
@@ -23810,12 +23913,13 @@ OMPClause *Sema::ActOnOpenMPUseDevicePtrClause(ArrayRef<Expr *> VarList,
     return nullptr;
 
   return OMPUseDevicePtrClause::Create(
-      Context, Locs, MVLI.ProcessedVarList, PrivateCopies, Inits,
+      getASTContext(), Locs, MVLI.ProcessedVarList, PrivateCopies, Inits,
       MVLI.VarBaseDeclarations, MVLI.VarComponents);
 }
 
-OMPClause *Sema::ActOnOpenMPUseDeviceAddrClause(ArrayRef<Expr *> VarList,
-                                                const OMPVarListLocTy &Locs) {
+OMPClause *
+SemaOpenMP::ActOnOpenMPUseDeviceAddrClause(ArrayRef<Expr *> VarList,
+                                           const OMPVarListLocTy &Locs) {
   MappableVarListInfo MVLI(VarList);
 
   for (Expr *RefExpr : VarList) {
@@ -23823,7 +23927,7 @@ OMPClause *Sema::ActOnOpenMPUseDeviceAddrClause(ArrayRef<Expr *> VarList,
     SourceLocation ELoc;
     SourceRange ERange;
     Expr *SimpleRefExpr = RefExpr;
-    auto Res = getPrivateItem(*this, SimpleRefExpr, ELoc, ERange,
+    auto Res = getPrivateItem(SemaRef, SimpleRefExpr, ELoc, ERange,
                               /*AllowArraySection=*/true);
     if (Res.second) {
       // It will be analyzed later.
@@ -23838,7 +23942,7 @@ OMPClause *Sema::ActOnOpenMPUseDeviceAddrClause(ArrayRef<Expr *> VarList,
     // with the current list item value.
     DeclRefExpr *Ref = nullptr;
     if (!VD)
-      Ref = buildCapture(*this, D, SimpleRefExpr, /*WithInit=*/true);
+      Ref = buildCapture(SemaRef, D, SimpleRefExpr, /*WithInit=*/true);
     MVLI.ProcessedVarList.push_back(VD ? RefExpr->IgnoreParens() : Ref);
 
     // We need to add a data sharing attribute for this variable to make sure it
@@ -23853,7 +23957,8 @@ OMPClause *Sema::ActOnOpenMPUseDeviceAddrClause(ArrayRef<Expr *> VarList,
     Expr *Component = SimpleRefExpr;
     if (VD && (isa<OMPArraySectionExpr>(RefExpr->IgnoreParenImpCasts()) ||
                isa<ArraySubscriptExpr>(RefExpr->IgnoreParenImpCasts())))
-      Component = DefaultFunctionArrayLvalueConversion(SimpleRefExpr).get();
+      Component =
+          SemaRef.DefaultFunctionArrayLvalueConversion(SimpleRefExpr).get();
     MVLI.VarComponents.back().emplace_back(Component, D,
                                            /*IsNonContiguous=*/false);
   }
@@ -23861,20 +23966,21 @@ OMPClause *Sema::ActOnOpenMPUseDeviceAddrClause(ArrayRef<Expr *> VarList,
   if (MVLI.ProcessedVarList.empty())
     return nullptr;
 
-  return OMPUseDeviceAddrClause::Create(Context, Locs, MVLI.ProcessedVarList,
-                                        MVLI.VarBaseDeclarations,
-                                        MVLI.VarComponents);
+  return OMPUseDeviceAddrClause::Create(
+      getASTContext(), Locs, MVLI.ProcessedVarList, MVLI.VarBaseDeclarations,
+      MVLI.VarComponents);
 }
 
-OMPClause *Sema::ActOnOpenMPIsDevicePtrClause(ArrayRef<Expr *> VarList,
-                                              const OMPVarListLocTy &Locs) {
+OMPClause *
+SemaOpenMP::ActOnOpenMPIsDevicePtrClause(ArrayRef<Expr *> VarList,
+                                         const OMPVarListLocTy &Locs) {
   MappableVarListInfo MVLI(VarList);
   for (Expr *RefExpr : VarList) {
     assert(RefExpr && "NULL expr in OpenMP is_device_ptr clause.");
     SourceLocation ELoc;
     SourceRange ERange;
     Expr *SimpleRefExpr = RefExpr;
-    auto Res = getPrivateItem(*this, SimpleRefExpr, ELoc, ERange);
+    auto Res = getPrivateItem(SemaRef, SimpleRefExpr, ELoc, ERange);
     if (Res.second) {
       // It will be analyzed later.
       MVLI.ProcessedVarList.push_back(RefExpr);
@@ -23900,7 +24006,7 @@ OMPClause *Sema::ActOnOpenMPIsDevicePtrClause(ArrayRef<Expr *> VarList,
           << getOpenMPClauseName(DVar.CKind)
           << getOpenMPClauseName(OMPC_is_device_ptr)
           << getOpenMPDirectiveName(DSAStack->getCurrentDirective());
-      reportOriginalDsa(*this, DSAStack, D, DVar);
+      reportOriginalDsa(SemaRef, DSAStack, D, DVar);
       continue;
     }
 
@@ -23944,20 +24050,21 @@ OMPClause *Sema::ActOnOpenMPIsDevicePtrClause(ArrayRef<Expr *> VarList,
   if (MVLI.ProcessedVarList.empty())
     return nullptr;
 
-  return OMPIsDevicePtrClause::Create(Context, Locs, MVLI.ProcessedVarList,
-                                      MVLI.VarBaseDeclarations,
-                                      MVLI.VarComponents);
+  return OMPIsDevicePtrClause::Create(
+      getASTContext(), Locs, MVLI.ProcessedVarList, MVLI.VarBaseDeclarations,
+      MVLI.VarComponents);
 }
 
-OMPClause *Sema::ActOnOpenMPHasDeviceAddrClause(ArrayRef<Expr *> VarList,
-                                                const OMPVarListLocTy &Locs) {
+OMPClause *
+SemaOpenMP::ActOnOpenMPHasDeviceAddrClause(ArrayRef<Expr *> VarList,
+                                           const OMPVarListLocTy &Locs) {
   MappableVarListInfo MVLI(VarList);
   for (Expr *RefExpr : VarList) {
     assert(RefExpr && "NULL expr in OpenMP has_device_addr clause.");
     SourceLocation ELoc;
     SourceRange ERange;
     Expr *SimpleRefExpr = RefExpr;
-    auto Res = getPrivateItem(*this, SimpleRefExpr, ELoc, ERange,
+    auto Res = getPrivateItem(SemaRef, SimpleRefExpr, ELoc, ERange,
                               /*AllowArraySection=*/true);
     if (Res.second) {
       // It will be analyzed later.
@@ -23975,7 +24082,7 @@ OMPClause *Sema::ActOnOpenMPHasDeviceAddrClause(ArrayRef<Expr *> VarList,
           << getOpenMPClauseName(DVar.CKind)
           << getOpenMPClauseName(OMPC_has_device_addr)
           << getOpenMPDirectiveName(DSAStack->getCurrentDirective());
-      reportOriginalDsa(*this, DSAStack, D, DVar);
+      reportOriginalDsa(SemaRef, DSAStack, D, DVar);
       continue;
     }
 
@@ -24000,16 +24107,17 @@ OMPClause *Sema::ActOnOpenMPHasDeviceAddrClause(ArrayRef<Expr *> VarList,
     auto *VD = dyn_cast<VarDecl>(D);
     if (VD && (isa<OMPArraySectionExpr>(RefExpr->IgnoreParenImpCasts()) ||
                isa<ArraySubscriptExpr>(RefExpr->IgnoreParenImpCasts())))
-      Component = DefaultFunctionArrayLvalueConversion(SimpleRefExpr).get();
+      Component =
+          SemaRef.DefaultFunctionArrayLvalueConversion(SimpleRefExpr).get();
     OMPClauseMappableExprCommon::MappableComponent MC(
         Component, D, /*IsNonContiguous=*/false);
     DSAStack->addMappableExpressionComponents(
         D, MC, /*WhereFoundClauseKind=*/OMPC_has_device_addr);
 
     // Record the expression we've just processed.
-    if (!VD && !CurContext->isDependentContext()) {
+    if (!VD && !SemaRef.CurContext->isDependentContext()) {
       DeclRefExpr *Ref =
-          buildCapture(*this, D, SimpleRefExpr, /*WithInit=*/true);
+          buildCapture(SemaRef, D, SimpleRefExpr, /*WithInit=*/true);
       assert(Ref && "has_device_addr capture failed");
       MVLI.ProcessedVarList.push_back(Ref);
     } else
@@ -24030,27 +24138,27 @@ OMPClause *Sema::ActOnOpenMPHasDeviceAddrClause(ArrayRef<Expr *> VarList,
   if (MVLI.ProcessedVarList.empty())
     return nullptr;
 
-  return OMPHasDeviceAddrClause::Create(Context, Locs, MVLI.ProcessedVarList,
-                                        MVLI.VarBaseDeclarations,
-                                        MVLI.VarComponents);
+  return OMPHasDeviceAddrClause::Create(
+      getASTContext(), Locs, MVLI.ProcessedVarList, MVLI.VarBaseDeclarations,
+      MVLI.VarComponents);
 }
 
-OMPClause *Sema::ActOnOpenMPAllocateClause(
+OMPClause *SemaOpenMP::ActOnOpenMPAllocateClause(
     Expr *Allocator, ArrayRef<Expr *> VarList, SourceLocation StartLoc,
     SourceLocation ColonLoc, SourceLocation LParenLoc, SourceLocation EndLoc) {
   if (Allocator) {
     // OpenMP [2.11.4 allocate Clause, Description]
     // allocator is an expression of omp_allocator_handle_t type.
-    if (!findOMPAllocatorHandleT(*this, Allocator->getExprLoc(), DSAStack))
+    if (!findOMPAllocatorHandleT(SemaRef, Allocator->getExprLoc(), DSAStack))
       return nullptr;
 
-    ExprResult AllocatorRes = DefaultLvalueConversion(Allocator);
+    ExprResult AllocatorRes = SemaRef.DefaultLvalueConversion(Allocator);
     if (AllocatorRes.isInvalid())
       return nullptr;
-    AllocatorRes = PerformImplicitConversion(AllocatorRes.get(),
-                                             DSAStack->getOMPAllocatorHandleT(),
-                                             Sema::AA_Initializing,
-                                             /*AllowExplicit=*/true);
+    AllocatorRes = SemaRef.PerformImplicitConversion(
+        AllocatorRes.get(), DSAStack->getOMPAllocatorHandleT(),
+        Sema::AA_Initializing,
+        /*AllowExplicit=*/true);
     if (AllocatorRes.isInvalid())
       return nullptr;
     Allocator = AllocatorRes.get();
@@ -24060,9 +24168,9 @@ OMPClause *Sema::ActOnOpenMPAllocateClause(
     // target region must specify an allocator expression unless a requires
     // directive with the dynamic_allocators clause is present in the same
     // compilation unit.
-    if (LangOpts.OpenMPIsTargetDevice &&
+    if (getLangOpts().OpenMPIsTargetDevice &&
         !DSAStack->hasRequiresDeclWithClause<OMPDynamicAllocatorsClause>())
-      targetDiag(StartLoc, diag::err_expected_allocator_expression);
+      SemaRef.targetDiag(StartLoc, diag::err_expected_allocator_expression);
   }
   // Analyze and build list of variables.
   SmallVector<Expr *, 8> Vars;
@@ -24071,7 +24179,7 @@ OMPClause *Sema::ActOnOpenMPAllocateClause(
     SourceLocation ELoc;
     SourceRange ERange;
     Expr *SimpleRefExpr = RefExpr;
-    auto Res = getPrivateItem(*this, SimpleRefExpr, ELoc, ERange);
+    auto Res = getPrivateItem(SemaRef, SimpleRefExpr, ELoc, ERange);
     if (Res.second) {
       // It will be analyzed later.
       Vars.push_back(RefExpr);
@@ -24082,9 +24190,9 @@ OMPClause *Sema::ActOnOpenMPAllocateClause(
 
     auto *VD = dyn_cast<VarDecl>(D);
     DeclRefExpr *Ref = nullptr;
-    if (!VD && !CurContext->isDependentContext())
-      Ref = buildCapture(*this, D, SimpleRefExpr, /*WithInit=*/false);
-    Vars.push_back((VD || CurContext->isDependentContext())
+    if (!VD && !SemaRef.CurContext->isDependentContext())
+      Ref = buildCapture(SemaRef, D, SimpleRefExpr, /*WithInit=*/false);
+    Vars.push_back((VD || SemaRef.CurContext->isDependentContext())
                        ? RefExpr->IgnoreParens()
                        : Ref);
   }
@@ -24094,21 +24202,21 @@ OMPClause *Sema::ActOnOpenMPAllocateClause(
 
   if (Allocator)
     DSAStack->addInnerAllocatorExpr(Allocator);
-  return OMPAllocateClause::Create(Context, StartLoc, LParenLoc, Allocator,
-                                   ColonLoc, EndLoc, Vars);
+  return OMPAllocateClause::Create(getASTContext(), StartLoc, LParenLoc,
+                                   Allocator, ColonLoc, EndLoc, Vars);
 }
 
-OMPClause *Sema::ActOnOpenMPNontemporalClause(ArrayRef<Expr *> VarList,
-                                              SourceLocation StartLoc,
-                                              SourceLocation LParenLoc,
-                                              SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPNontemporalClause(ArrayRef<Expr *> VarList,
+                                                    SourceLocation StartLoc,
+                                                    SourceLocation LParenLoc,
+                                                    SourceLocation EndLoc) {
   SmallVector<Expr *, 8> Vars;
   for (Expr *RefExpr : VarList) {
     assert(RefExpr && "NULL expr in OpenMP nontemporal clause.");
     SourceLocation ELoc;
     SourceRange ERange;
     Expr *SimpleRefExpr = RefExpr;
-    auto Res = getPrivateItem(*this, SimpleRefExpr, ELoc, ERange);
+    auto Res = getPrivateItem(SemaRef, SimpleRefExpr, ELoc, ERange);
     if (Res.second)
       // It will be analyzed later.
       Vars.push_back(RefExpr);
@@ -24133,32 +24241,34 @@ OMPClause *Sema::ActOnOpenMPNontemporalClause(ArrayRef<Expr *> VarList,
   if (Vars.empty())
     return nullptr;
 
-  return OMPNontemporalClause::Create(Context, StartLoc, LParenLoc, EndLoc,
-                                      Vars);
+  return OMPNontemporalClause::Create(getASTContext(), StartLoc, LParenLoc,
+                                      EndLoc, Vars);
 }
 
-StmtResult Sema::ActOnOpenMPScopeDirective(ArrayRef<OMPClause *> Clauses,
-                                           Stmt *AStmt, SourceLocation StartLoc,
-                                           SourceLocation EndLoc) {
+StmtResult SemaOpenMP::ActOnOpenMPScopeDirective(ArrayRef<OMPClause *> Clauses,
+                                                 Stmt *AStmt,
+                                                 SourceLocation StartLoc,
+                                                 SourceLocation EndLoc) {
   if (!AStmt)
     return StmtError();
 
-  setFunctionHasBranchProtectedScope();
+  SemaRef.setFunctionHasBranchProtectedScope();
 
-  return OMPScopeDirective::Create(Context, StartLoc, EndLoc, Clauses, AStmt);
+  return OMPScopeDirective::Create(getASTContext(), StartLoc, EndLoc, Clauses,
+                                   AStmt);
 }
 
-OMPClause *Sema::ActOnOpenMPInclusiveClause(ArrayRef<Expr *> VarList,
-                                            SourceLocation StartLoc,
-                                            SourceLocation LParenLoc,
-                                            SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPInclusiveClause(ArrayRef<Expr *> VarList,
+                                                  SourceLocation StartLoc,
+                                                  SourceLocation LParenLoc,
+                                                  SourceLocation EndLoc) {
   SmallVector<Expr *, 8> Vars;
   for (Expr *RefExpr : VarList) {
     assert(RefExpr && "NULL expr in OpenMP nontemporal clause.");
     SourceLocation ELoc;
     SourceRange ERange;
     Expr *SimpleRefExpr = RefExpr;
-    auto Res = getPrivateItem(*this, SimpleRefExpr, ELoc, ERange,
+    auto Res = getPrivateItem(SemaRef, SimpleRefExpr, ELoc, ERange,
                               /*AllowArraySection=*/true);
     if (Res.second)
       // It will be analyzed later.
@@ -24185,20 +24295,21 @@ OMPClause *Sema::ActOnOpenMPInclusiveClause(ArrayRef<Expr *> VarList,
   if (Vars.empty())
     return nullptr;
 
-  return OMPInclusiveClause::Create(Context, StartLoc, LParenLoc, EndLoc, Vars);
+  return OMPInclusiveClause::Create(getASTContext(), StartLoc, LParenLoc,
+                                    EndLoc, Vars);
 }
 
-OMPClause *Sema::ActOnOpenMPExclusiveClause(ArrayRef<Expr *> VarList,
-                                            SourceLocation StartLoc,
-                                            SourceLocation LParenLoc,
-                                            SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPExclusiveClause(ArrayRef<Expr *> VarList,
+                                                  SourceLocation StartLoc,
+                                                  SourceLocation LParenLoc,
+                                                  SourceLocation EndLoc) {
   SmallVector<Expr *, 8> Vars;
   for (Expr *RefExpr : VarList) {
     assert(RefExpr && "NULL expr in OpenMP nontemporal clause.");
     SourceLocation ELoc;
     SourceRange ERange;
     Expr *SimpleRefExpr = RefExpr;
-    auto Res = getPrivateItem(*this, SimpleRefExpr, ELoc, ERange,
+    auto Res = getPrivateItem(SemaRef, SimpleRefExpr, ELoc, ERange,
                               /*AllowArraySection=*/true);
     if (Res.second)
       // It will be analyzed later.
@@ -24228,7 +24339,8 @@ OMPClause *Sema::ActOnOpenMPExclusiveClause(ArrayRef<Expr *> VarList,
   if (Vars.empty())
     return nullptr;
 
-  return OMPExclusiveClause::Create(Context, StartLoc, LParenLoc, EndLoc, Vars);
+  return OMPExclusiveClause::Create(getASTContext(), StartLoc, LParenLoc,
+                                    EndLoc, Vars);
 }
 
 /// Tries to find omp_alloctrait_t type.
@@ -24246,19 +24358,20 @@ static bool findOMPAlloctraitT(Sema &S, SourceLocation Loc, DSAStackTy *Stack) {
   return true;
 }
 
-OMPClause *Sema::ActOnOpenMPUsesAllocatorClause(
+OMPClause *SemaOpenMP::ActOnOpenMPUsesAllocatorClause(
     SourceLocation StartLoc, SourceLocation LParenLoc, SourceLocation EndLoc,
     ArrayRef<UsesAllocatorsData> Data) {
+  ASTContext &Context = getASTContext();
   // OpenMP [2.12.5, target Construct]
   // allocator is an identifier of omp_allocator_handle_t type.
-  if (!findOMPAllocatorHandleT(*this, StartLoc, DSAStack))
+  if (!findOMPAllocatorHandleT(SemaRef, StartLoc, DSAStack))
     return nullptr;
   // OpenMP [2.12.5, target Construct]
   // allocator-traits-array is an identifier of const omp_alloctrait_t * type.
   if (llvm::any_of(
           Data,
           [](const UsesAllocatorsData &D) { return D.AllocatorTraits; }) &&
-      !findOMPAlloctraitT(*this, StartLoc, DSAStack))
+      !findOMPAlloctraitT(SemaRef, StartLoc, DSAStack))
     return nullptr;
   llvm::SmallPtrSet<CanonicalDeclPtr<Decl>, 4> PredefinedAllocators;
   for (int I = 0; I < OMPAllocateDeclAttr::OMPUserDefinedMemAlloc; ++I) {
@@ -24266,8 +24379,8 @@ OMPClause *Sema::ActOnOpenMPUsesAllocatorClause(
     StringRef Allocator =
         OMPAllocateDeclAttr::ConvertAllocatorTypeTyToStr(AllocatorKind);
     DeclarationName AllocatorName = &Context.Idents.get(Allocator);
-    PredefinedAllocators.insert(LookupSingleName(
-        TUScope, AllocatorName, StartLoc, Sema::LookupAnyName));
+    PredefinedAllocators.insert(SemaRef.LookupSingleName(
+        SemaRef.TUScope, AllocatorName, StartLoc, Sema::LookupAnyName));
   }
 
   SmallVector<OMPUsesAllocatorsClause::Data, 4> NewData;
@@ -24284,7 +24397,7 @@ OMPClause *Sema::ActOnOpenMPUsesAllocatorClause(
       bool IsPredefinedAllocator = false;
       if (DRE) {
         OMPAllocateDeclAttr::AllocatorTypeTy AllocatorTy =
-            getAllocatorKind(*this, DSAStack, AllocatorExpr);
+            getAllocatorKind(SemaRef, DSAStack, AllocatorExpr);
         IsPredefinedAllocator =
             AllocatorTy !=
             OMPAllocateDeclAttr::AllocatorTypeTy::OMPUserDefinedMemAlloc;
@@ -24329,7 +24442,7 @@ OMPClause *Sema::ActOnOpenMPUsesAllocatorClause(
       }
       // No allocator traits - just convert it to rvalue.
       if (!D.AllocatorTraits)
-        AllocatorExpr = DefaultLvalueConversion(AllocatorExpr).get();
+        AllocatorExpr = SemaRef.DefaultLvalueConversion(AllocatorExpr).get();
       DSAStack->addUsesAllocatorsDecl(
           DRE->getDecl(),
           IsPredefinedAllocator
@@ -24376,11 +24489,11 @@ OMPClause *Sema::ActOnOpenMPUsesAllocatorClause(
     NewD.LParenLoc = D.LParenLoc;
     NewD.RParenLoc = D.RParenLoc;
   }
-  return OMPUsesAllocatorsClause::Create(Context, StartLoc, LParenLoc, EndLoc,
-                                         NewData);
+  return OMPUsesAllocatorsClause::Create(getASTContext(), StartLoc, LParenLoc,
+                                         EndLoc, NewData);
 }
 
-OMPClause *Sema::ActOnOpenMPAffinityClause(
+OMPClause *SemaOpenMP::ActOnOpenMPAffinityClause(
     SourceLocation StartLoc, SourceLocation LParenLoc, SourceLocation ColonLoc,
     SourceLocation EndLoc, Expr *Modifier, ArrayRef<Expr *> Locators) {
   SmallVector<Expr *, 8> Vars;
@@ -24403,8 +24516,8 @@ OMPClause *Sema::ActOnOpenMPAffinityClause(
 
     ExprResult Res;
     {
-      Sema::TentativeAnalysisScope Trap(*this);
-      Res = CreateBuiltinUnaryOp(ELoc, UO_AddrOf, SimpleExpr);
+      Sema::TentativeAnalysisScope Trap(SemaRef);
+      Res = SemaRef.CreateBuiltinUnaryOp(ELoc, UO_AddrOf, SimpleExpr);
     }
     if (!Res.isUsable() && !isa<OMPArraySectionExpr>(SimpleExpr) &&
         !isa<OMPArrayShapingExpr>(SimpleExpr)) {
@@ -24415,15 +24528,15 @@ OMPClause *Sema::ActOnOpenMPAffinityClause(
     Vars.push_back(SimpleExpr);
   }
 
-  return OMPAffinityClause::Create(Context, StartLoc, LParenLoc, ColonLoc,
-                                   EndLoc, Modifier, Vars);
+  return OMPAffinityClause::Create(getASTContext(), StartLoc, LParenLoc,
+                                   ColonLoc, EndLoc, Modifier, Vars);
 }
 
-OMPClause *Sema::ActOnOpenMPBindClause(OpenMPBindClauseKind Kind,
-                                       SourceLocation KindLoc,
-                                       SourceLocation StartLoc,
-                                       SourceLocation LParenLoc,
-                                       SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPBindClause(OpenMPBindClauseKind Kind,
+                                             SourceLocation KindLoc,
+                                             SourceLocation StartLoc,
+                                             SourceLocation LParenLoc,
+                                             SourceLocation EndLoc) {
   if (Kind == OMPC_BIND_unknown) {
     Diag(KindLoc, diag::err_omp_unexpected_clause_value)
         << getListOfPossibleValues(OMPC_bind, /*First=*/0,
@@ -24432,39 +24545,40 @@ OMPClause *Sema::ActOnOpenMPBindClause(OpenMPBindClauseKind Kind,
     return nullptr;
   }
 
-  return OMPBindClause::Create(Context, Kind, KindLoc, StartLoc, LParenLoc,
-                               EndLoc);
+  return OMPBindClause::Create(getASTContext(), Kind, KindLoc, StartLoc,
+                               LParenLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPXDynCGroupMemClause(Expr *Size,
-                                                SourceLocation StartLoc,
-                                                SourceLocation LParenLoc,
-                                                SourceLocation EndLoc) {
+OMPClause *SemaOpenMP::ActOnOpenMPXDynCGroupMemClause(Expr *Size,
+                                                      SourceLocation StartLoc,
+                                                      SourceLocation LParenLoc,
+                                                      SourceLocation EndLoc) {
   Expr *ValExpr = Size;
   Stmt *HelperValStmt = nullptr;
 
   // OpenMP [2.5, Restrictions]
   //  The ompx_dyn_cgroup_mem expression must evaluate to a positive integer
   //  value.
-  if (!isNonNegativeIntegerValue(ValExpr, *this, OMPC_ompx_dyn_cgroup_mem,
+  if (!isNonNegativeIntegerValue(ValExpr, SemaRef, OMPC_ompx_dyn_cgroup_mem,
                                  /*StrictlyPositive=*/false))
     return nullptr;
 
   OpenMPDirectiveKind DKind = DSAStack->getCurrentDirective();
   OpenMPDirectiveKind CaptureRegion = getOpenMPCaptureRegionForClause(
-      DKind, OMPC_ompx_dyn_cgroup_mem, LangOpts.OpenMP);
-  if (CaptureRegion != OMPD_unknown && !CurContext->isDependentContext()) {
-    ValExpr = MakeFullExpr(ValExpr).get();
+      DKind, OMPC_ompx_dyn_cgroup_mem, getLangOpts().OpenMP);
+  if (CaptureRegion != OMPD_unknown &&
+      !SemaRef.CurContext->isDependentContext()) {
+    ValExpr = SemaRef.MakeFullExpr(ValExpr).get();
     llvm::MapVector<const Expr *, DeclRefExpr *> Captures;
-    ValExpr = tryBuildCapture(*this, ValExpr, Captures).get();
-    HelperValStmt = buildPreInits(Context, Captures);
+    ValExpr = tryBuildCapture(SemaRef, ValExpr, Captures).get();
+    HelperValStmt = buildPreInits(getASTContext(), Captures);
   }
 
-  return new (Context) OMPXDynCGroupMemClause(
+  return new (getASTContext()) OMPXDynCGroupMemClause(
       ValExpr, HelperValStmt, CaptureRegion, StartLoc, LParenLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPDoacrossClause(
+OMPClause *SemaOpenMP::ActOnOpenMPDoacrossClause(
     OpenMPDoacrossClauseModifier DepType, SourceLocation DepLoc,
     SourceLocation ColonLoc, ArrayRef<Expr *> VarList, SourceLocation StartLoc,
     SourceLocation LParenLoc, SourceLocation EndLoc) {
@@ -24483,7 +24597,7 @@ OMPClause *Sema::ActOnOpenMPDoacrossClause(
   DSAStackTy::OperatorOffsetTy OpsOffs;
   llvm::APSInt TotalDepCount(/*BitWidth=*/32);
   DoacrossDataInfoTy VarOffset = ProcessOpenMPDoacrossClauseCommon(
-      *this,
+      SemaRef,
       DepType == OMPC_DOACROSS_source ||
           DepType == OMPC_DOACROSS_source_omp_cur_iteration ||
           DepType == OMPC_DOACROSS_sink_omp_cur_iteration,
@@ -24491,22 +24605,587 @@ OMPClause *Sema::ActOnOpenMPDoacrossClause(
   Vars = VarOffset.Vars;
   OpsOffs = VarOffset.OpsOffs;
   TotalDepCount = VarOffset.TotalDepCount;
-  auto *C = OMPDoacrossClause::Create(Context, StartLoc, LParenLoc, EndLoc,
-                                      DepType, DepLoc, ColonLoc, Vars,
+  auto *C = OMPDoacrossClause::Create(getASTContext(), StartLoc, LParenLoc,
+                                      EndLoc, DepType, DepLoc, ColonLoc, Vars,
                                       TotalDepCount.getZExtValue());
   if (DSAStack->isParentOrderedRegion())
     DSAStack->addDoacrossDependClause(C, OpsOffs);
   return C;
 }
 
-OMPClause *Sema::ActOnOpenMPXAttributeClause(ArrayRef<const Attr *> Attrs,
-                                             SourceLocation StartLoc,
-                                             SourceLocation LParenLoc,
-                                             SourceLocation EndLoc) {
-  return new (Context) OMPXAttributeClause(Attrs, StartLoc, LParenLoc, EndLoc);
+OMPClause *SemaOpenMP::ActOnOpenMPXAttributeClause(ArrayRef<const Attr *> Attrs,
+                                                   SourceLocation StartLoc,
+                                                   SourceLocation LParenLoc,
+                                                   SourceLocation EndLoc) {
+  return new (getASTContext())
+      OMPXAttributeClause(Attrs, StartLoc, LParenLoc, EndLoc);
 }
 
-OMPClause *Sema::ActOnOpenMPXBareClause(SourceLocation StartLoc,
-                                        SourceLocation EndLoc) {
-  return new (Context) OMPXBareClause(StartLoc, EndLoc);
+OMPClause *SemaOpenMP::ActOnOpenMPXBareClause(SourceLocation StartLoc,
+                                              SourceLocation EndLoc) {
+  return new (getASTContext()) OMPXBareClause(StartLoc, EndLoc);
+}
+
+ExprResult SemaOpenMP::ActOnOMPArraySectionExpr(
+    Expr *Base, SourceLocation LBLoc, Expr *LowerBound,
+    SourceLocation ColonLocFirst, SourceLocation ColonLocSecond, Expr *Length,
+    Expr *Stride, SourceLocation RBLoc) {
+  ASTContext &Context = getASTContext();
+  if (Base->hasPlaceholderType() &&
+      !Base->hasPlaceholderType(BuiltinType::OMPArraySection)) {
+    ExprResult Result = SemaRef.CheckPlaceholderExpr(Base);
+    if (Result.isInvalid())
+      return ExprError();
+    Base = Result.get();
+  }
+  if (LowerBound && LowerBound->getType()->isNonOverloadPlaceholderType()) {
+    ExprResult Result = SemaRef.CheckPlaceholderExpr(LowerBound);
+    if (Result.isInvalid())
+      return ExprError();
+    Result = SemaRef.DefaultLvalueConversion(Result.get());
+    if (Result.isInvalid())
+      return ExprError();
+    LowerBound = Result.get();
+  }
+  if (Length && Length->getType()->isNonOverloadPlaceholderType()) {
+    ExprResult Result = SemaRef.CheckPlaceholderExpr(Length);
+    if (Result.isInvalid())
+      return ExprError();
+    Result = SemaRef.DefaultLvalueConversion(Result.get());
+    if (Result.isInvalid())
+      return ExprError();
+    Length = Result.get();
+  }
+  if (Stride && Stride->getType()->isNonOverloadPlaceholderType()) {
+    ExprResult Result = SemaRef.CheckPlaceholderExpr(Stride);
+    if (Result.isInvalid())
+      return ExprError();
+    Result = SemaRef.DefaultLvalueConversion(Result.get());
+    if (Result.isInvalid())
+      return ExprError();
+    Stride = Result.get();
+  }
+
+  // Build an unanalyzed expression if either operand is type-dependent.
+  if (Base->isTypeDependent() ||
+      (LowerBound &&
+       (LowerBound->isTypeDependent() || LowerBound->isValueDependent())) ||
+      (Length && (Length->isTypeDependent() || Length->isValueDependent())) ||
+      (Stride && (Stride->isTypeDependent() || Stride->isValueDependent()))) {
+    return new (Context) OMPArraySectionExpr(
+        Base, LowerBound, Length, Stride, Context.DependentTy, VK_LValue,
+        OK_Ordinary, ColonLocFirst, ColonLocSecond, RBLoc);
+  }
+
+  // Perform default conversions.
+  QualType OriginalTy = OMPArraySectionExpr::getBaseOriginalType(Base);
+  QualType ResultTy;
+  if (OriginalTy->isAnyPointerType()) {
+    ResultTy = OriginalTy->getPointeeType();
+  } else if (OriginalTy->isArrayType()) {
+    ResultTy = OriginalTy->getAsArrayTypeUnsafe()->getElementType();
+  } else {
+    return ExprError(
+        Diag(Base->getExprLoc(), diag::err_omp_typecheck_section_value)
+        << Base->getSourceRange());
+  }
+  // C99 6.5.2.1p1
+  if (LowerBound) {
+    auto Res = PerformOpenMPImplicitIntegerConversion(LowerBound->getExprLoc(),
+                                                      LowerBound);
+    if (Res.isInvalid())
+      return ExprError(Diag(LowerBound->getExprLoc(),
+                            diag::err_omp_typecheck_section_not_integer)
+                       << 0 << LowerBound->getSourceRange());
+    LowerBound = Res.get();
+
+    if (LowerBound->getType()->isSpecificBuiltinType(BuiltinType::Char_S) ||
+        LowerBound->getType()->isSpecificBuiltinType(BuiltinType::Char_U))
+      Diag(LowerBound->getExprLoc(), diag::warn_omp_section_is_char)
+          << 0 << LowerBound->getSourceRange();
+  }
+  if (Length) {
+    auto Res =
+        PerformOpenMPImplicitIntegerConversion(Length->getExprLoc(), Length);
+    if (Res.isInvalid())
+      return ExprError(Diag(Length->getExprLoc(),
+                            diag::err_omp_typecheck_section_not_integer)
+                       << 1 << Length->getSourceRange());
+    Length = Res.get();
+
+    if (Length->getType()->isSpecificBuiltinType(BuiltinType::Char_S) ||
+        Length->getType()->isSpecificBuiltinType(BuiltinType::Char_U))
+      Diag(Length->getExprLoc(), diag::warn_omp_section_is_char)
+          << 1 << Length->getSourceRange();
+  }
+  if (Stride) {
+    ExprResult Res =
+        PerformOpenMPImplicitIntegerConversion(Stride->getExprLoc(), Stride);
+    if (Res.isInvalid())
+      return ExprError(Diag(Stride->getExprLoc(),
+                            diag::err_omp_typecheck_section_not_integer)
+                       << 1 << Stride->getSourceRange());
+    Stride = Res.get();
+
+    if (Stride->getType()->isSpecificBuiltinType(BuiltinType::Char_S) ||
+        Stride->getType()->isSpecificBuiltinType(BuiltinType::Char_U))
+      Diag(Stride->getExprLoc(), diag::warn_omp_section_is_char)
+          << 1 << Stride->getSourceRange();
+  }
+
+  // C99 6.5.2.1p1: "shall have type "pointer to *object* type". Similarly,
+  // C++ [expr.sub]p1: The type "T" shall be a completely-defined object
+  // type. Note that functions are not objects, and that (in C99 parlance)
+  // incomplete types are not object types.
+  if (ResultTy->isFunctionType()) {
+    Diag(Base->getExprLoc(), diag::err_omp_section_function_type)
+        << ResultTy << Base->getSourceRange();
+    return ExprError();
+  }
+
+  if (SemaRef.RequireCompleteType(Base->getExprLoc(), ResultTy,
+                                  diag::err_omp_section_incomplete_type, Base))
+    return ExprError();
+
+  if (LowerBound && !OriginalTy->isAnyPointerType()) {
+    Expr::EvalResult Result;
+    if (LowerBound->EvaluateAsInt(Result, Context)) {
+      // OpenMP 5.0, [2.1.5 Array Sections]
+      // The array section must be a subset of the original array.
+      llvm::APSInt LowerBoundValue = Result.Val.getInt();
+      if (LowerBoundValue.isNegative()) {
+        Diag(LowerBound->getExprLoc(),
+             diag::err_omp_section_not_subset_of_array)
+            << LowerBound->getSourceRange();
+        return ExprError();
+      }
+    }
+  }
+
+  if (Length) {
+    Expr::EvalResult Result;
+    if (Length->EvaluateAsInt(Result, Context)) {
+      // OpenMP 5.0, [2.1.5 Array Sections]
+      // The length must evaluate to non-negative integers.
+      llvm::APSInt LengthValue = Result.Val.getInt();
+      if (LengthValue.isNegative()) {
+        Diag(Length->getExprLoc(), diag::err_omp_section_length_negative)
+            << toString(LengthValue, /*Radix=*/10, /*Signed=*/true)
+            << Length->getSourceRange();
+        return ExprError();
+      }
+    }
+  } else if (ColonLocFirst.isValid() &&
+             (OriginalTy.isNull() || (!OriginalTy->isConstantArrayType() &&
+                                      !OriginalTy->isVariableArrayType()))) {
+    // OpenMP 5.0, [2.1.5 Array Sections]
+    // When the size of the array dimension is not known, the length must be
+    // specified explicitly.
+    Diag(ColonLocFirst, diag::err_omp_section_length_undefined)
+        << (!OriginalTy.isNull() && OriginalTy->isArrayType());
+    return ExprError();
+  }
+
+  if (Stride) {
+    Expr::EvalResult Result;
+    if (Stride->EvaluateAsInt(Result, Context)) {
+      // OpenMP 5.0, [2.1.5 Array Sections]
+      // The stride must evaluate to a positive integer.
+      llvm::APSInt StrideValue = Result.Val.getInt();
+      if (!StrideValue.isStrictlyPositive()) {
+        Diag(Stride->getExprLoc(), diag::err_omp_section_stride_non_positive)
+            << toString(StrideValue, /*Radix=*/10, /*Signed=*/true)
+            << Stride->getSourceRange();
+        return ExprError();
+      }
+    }
+  }
+
+  if (!Base->hasPlaceholderType(BuiltinType::OMPArraySection)) {
+    ExprResult Result = SemaRef.DefaultFunctionArrayLvalueConversion(Base);
+    if (Result.isInvalid())
+      return ExprError();
+    Base = Result.get();
+  }
+  return new (Context) OMPArraySectionExpr(
+      Base, LowerBound, Length, Stride, Context.OMPArraySectionTy, VK_LValue,
+      OK_Ordinary, ColonLocFirst, ColonLocSecond, RBLoc);
+}
+
+ExprResult SemaOpenMP::ActOnOMPArrayShapingExpr(
+    Expr *Base, SourceLocation LParenLoc, SourceLocation RParenLoc,
+    ArrayRef<Expr *> Dims, ArrayRef<SourceRange> Brackets) {
+  ASTContext &Context = getASTContext();
+  if (Base->hasPlaceholderType()) {
+    ExprResult Result = SemaRef.CheckPlaceholderExpr(Base);
+    if (Result.isInvalid())
+      return ExprError();
+    Result = SemaRef.DefaultLvalueConversion(Result.get());
+    if (Result.isInvalid())
+      return ExprError();
+    Base = Result.get();
+  }
+  QualType BaseTy = Base->getType();
+  // Delay analysis of the types/expressions if instantiation/specialization is
+  // required.
+  if (!BaseTy->isPointerType() && Base->isTypeDependent())
+    return OMPArrayShapingExpr::Create(Context, Context.DependentTy, Base,
+                                       LParenLoc, RParenLoc, Dims, Brackets);
+  if (!BaseTy->isPointerType() ||
+      (!Base->isTypeDependent() &&
+       BaseTy->getPointeeType()->isIncompleteType()))
+    return ExprError(Diag(Base->getExprLoc(),
+                          diag::err_omp_non_pointer_type_array_shaping_base)
+                     << Base->getSourceRange());
+
+  SmallVector<Expr *, 4> NewDims;
+  bool ErrorFound = false;
+  for (Expr *Dim : Dims) {
+    if (Dim->hasPlaceholderType()) {
+      ExprResult Result = SemaRef.CheckPlaceholderExpr(Dim);
+      if (Result.isInvalid()) {
+        ErrorFound = true;
+        continue;
+      }
+      Result = SemaRef.DefaultLvalueConversion(Result.get());
+      if (Result.isInvalid()) {
+        ErrorFound = true;
+        continue;
+      }
+      Dim = Result.get();
+    }
+    if (!Dim->isTypeDependent()) {
+      ExprResult Result =
+          PerformOpenMPImplicitIntegerConversion(Dim->getExprLoc(), Dim);
+      if (Result.isInvalid()) {
+        ErrorFound = true;
+        Diag(Dim->getExprLoc(), diag::err_omp_typecheck_shaping_not_integer)
+            << Dim->getSourceRange();
+        continue;
+      }
+      Dim = Result.get();
+      Expr::EvalResult EvResult;
+      if (!Dim->isValueDependent() && Dim->EvaluateAsInt(EvResult, Context)) {
+        // OpenMP 5.0, [2.1.4 Array Shaping]
+        // Each si is an integral type expression that must evaluate to a
+        // positive integer.
+        llvm::APSInt Value = EvResult.Val.getInt();
+        if (!Value.isStrictlyPositive()) {
+          Diag(Dim->getExprLoc(), diag::err_omp_shaping_dimension_not_positive)
+              << toString(Value, /*Radix=*/10, /*Signed=*/true)
+              << Dim->getSourceRange();
+          ErrorFound = true;
+          continue;
+        }
+      }
+    }
+    NewDims.push_back(Dim);
+  }
+  if (ErrorFound)
+    return ExprError();
+  return OMPArrayShapingExpr::Create(Context, Context.OMPArrayShapingTy, Base,
+                                     LParenLoc, RParenLoc, NewDims, Brackets);
 }
+
+ExprResult SemaOpenMP::ActOnOMPIteratorExpr(Scope *S,
+                                            SourceLocation IteratorKwLoc,
+                                            SourceLocation LLoc,
+                                            SourceLocation RLoc,
+                                            ArrayRef<OMPIteratorData> Data) {
+  ASTContext &Context = getASTContext();
+  SmallVector<OMPIteratorExpr::IteratorDefinition, 4> ID;
+  bool IsCorrect = true;
+  for (const OMPIteratorData &D : Data) {
+    TypeSourceInfo *TInfo = nullptr;
+    SourceLocation StartLoc;
+    QualType DeclTy;
+    if (!D.Type.getAsOpaquePtr()) {
+      // OpenMP 5.0, 2.1.6 Iterators
+      // In an iterator-specifier, if the iterator-type is not specified then
+      // the type of that iterator is of int type.
+      DeclTy = Context.IntTy;
+      StartLoc = D.DeclIdentLoc;
+    } else {
+      DeclTy = Sema::GetTypeFromParser(D.Type, &TInfo);
+      StartLoc = TInfo->getTypeLoc().getBeginLoc();
+    }
+
+    bool IsDeclTyDependent = DeclTy->isDependentType() ||
+                             DeclTy->containsUnexpandedParameterPack() ||
+                             DeclTy->isInstantiationDependentType();
+    if (!IsDeclTyDependent) {
+      if (!DeclTy->isIntegralType(Context) && !DeclTy->isAnyPointerType()) {
+        // OpenMP 5.0, 2.1.6 Iterators, Restrictions, C/C++
+        // The iterator-type must be an integral or pointer type.
+        Diag(StartLoc, diag::err_omp_iterator_not_integral_or_pointer)
+            << DeclTy;
+        IsCorrect = false;
+        continue;
+      }
+      if (DeclTy.isConstant(Context)) {
+        // OpenMP 5.0, 2.1.6 Iterators, Restrictions, C/C++
+        // The iterator-type must not be const qualified.
+        Diag(StartLoc, diag::err_omp_iterator_not_integral_or_pointer)
+            << DeclTy;
+        IsCorrect = false;
+        continue;
+      }
+    }
+
+    // Iterator declaration.
+    assert(D.DeclIdent && "Identifier expected.");
+    // Always try to create iterator declarator to avoid extra error messages
+    // about unknown declarations use.
+    auto *VD =
+        VarDecl::Create(Context, SemaRef.CurContext, StartLoc, D.DeclIdentLoc,
+                        D.DeclIdent, DeclTy, TInfo, SC_None);
+    VD->setImplicit();
+    if (S) {
+      // Check for conflicting previous declaration.
+      DeclarationNameInfo NameInfo(VD->getDeclName(), D.DeclIdentLoc);
+      LookupResult Previous(SemaRef, NameInfo, Sema::LookupOrdinaryName,
+                            Sema::ForVisibleRedeclaration);
+      Previous.suppressDiagnostics();
+      SemaRef.LookupName(Previous, S);
+
+      SemaRef.FilterLookupForScope(Previous, SemaRef.CurContext, S,
+                                   /*ConsiderLinkage=*/false,
+                                   /*AllowInlineNamespace=*/false);
+      if (!Previous.empty()) {
+        NamedDecl *Old = Previous.getRepresentativeDecl();
+        Diag(D.DeclIdentLoc, diag::err_redefinition) << VD->getDeclName();
+        Diag(Old->getLocation(), diag::note_previous_definition);
+      } else {
+        SemaRef.PushOnScopeChains(VD, S);
+      }
+    } else {
+      SemaRef.CurContext->addDecl(VD);
+    }
+
+    /// Act on the iterator variable declaration.
+    ActOnOpenMPIteratorVarDecl(VD);
+
+    Expr *Begin = D.Range.Begin;
+    if (!IsDeclTyDependent && Begin && !Begin->isTypeDependent()) {
+      ExprResult BeginRes =
+          SemaRef.PerformImplicitConversion(Begin, DeclTy, Sema::AA_Converting);
+      Begin = BeginRes.get();
+    }
+    Expr *End = D.Range.End;
+    if (!IsDeclTyDependent && End && !End->isTypeDependent()) {
+      ExprResult EndRes =
+          SemaRef.PerformImplicitConversion(End, DeclTy, Sema::AA_Converting);
+      End = EndRes.get();
+    }
+    Expr *Step = D.Range.Step;
+    if (!IsDeclTyDependent && Step && !Step->isTypeDependent()) {
+      if (!Step->getType()->isIntegralType(Context)) {
+        Diag(Step->getExprLoc(), diag::err_omp_iterator_step_not_integral)
+            << Step << Step->getSourceRange();
+        IsCorrect = false;
+        continue;
+      }
+      std::optional<llvm::APSInt> Result =
+          Step->getIntegerConstantExpr(Context);
+      // OpenMP 5.0, 2.1.6 Iterators, Restrictions
+      // If the step expression of a range-specification equals zero, the
+      // behavior is unspecified.
+      if (Result && Result->isZero()) {
+        Diag(Step->getExprLoc(), diag::err_omp_iterator_step_constant_zero)
+            << Step << Step->getSourceRange();
+        IsCorrect = false;
+        continue;
+      }
+    }
+    if (!Begin || !End || !IsCorrect) {
+      IsCorrect = false;
+      continue;
+    }
+    OMPIteratorExpr::IteratorDefinition &IDElem = ID.emplace_back();
+    IDElem.IteratorDecl = VD;
+    IDElem.AssignmentLoc = D.AssignLoc;
+    IDElem.Range.Begin = Begin;
+    IDElem.Range.End = End;
+    IDElem.Range.Step = Step;
+    IDElem.ColonLoc = D.ColonLoc;
+    IDElem.SecondColonLoc = D.SecColonLoc;
+  }
+  if (!IsCorrect) {
+    // Invalidate all created iterator declarations if error is found.
+    for (const OMPIteratorExpr::IteratorDefinition &D : ID) {
+      if (Decl *ID = D.IteratorDecl)
+        ID->setInvalidDecl();
+    }
+    return ExprError();
+  }
+  SmallVector<OMPIteratorHelperData, 4> Helpers;
+  if (!SemaRef.CurContext->isDependentContext()) {
+    // Build number of ityeration for each iteration range.
+    // Ni = ((Stepi > 0) ? ((Endi + Stepi -1 - Begini)/Stepi) :
+    // ((Begini-Stepi-1-Endi) / -Stepi);
+    for (OMPIteratorExpr::IteratorDefinition &D : ID) {
+      // (Endi - Begini)
+      ExprResult Res = SemaRef.CreateBuiltinBinOp(D.AssignmentLoc, BO_Sub,
+                                                  D.Range.End, D.Range.Begin);
+      if (!Res.isUsable()) {
+        IsCorrect = false;
+        continue;
+      }
+      ExprResult St, St1;
+      if (D.Range.Step) {
+        St = D.Range.Step;
+        // (Endi - Begini) + Stepi
+        Res = SemaRef.CreateBuiltinBinOp(D.AssignmentLoc, BO_Add, Res.get(),
+                                         St.get());
+        if (!Res.isUsable()) {
+          IsCorrect = false;
+          continue;
+        }
+        // (Endi - Begini) + Stepi - 1
+        Res = SemaRef.CreateBuiltinBinOp(
+            D.AssignmentLoc, BO_Sub, Res.get(),
+            SemaRef.ActOnIntegerConstant(D.AssignmentLoc, 1).get());
+        if (!Res.isUsable()) {
+          IsCorrect = false;
+          continue;
+        }
+        // ((Endi - Begini) + Stepi - 1) / Stepi
+        Res = SemaRef.CreateBuiltinBinOp(D.AssignmentLoc, BO_Div, Res.get(),
+                                         St.get());
+        if (!Res.isUsable()) {
+          IsCorrect = false;
+          continue;
+        }
+        St1 = SemaRef.CreateBuiltinUnaryOp(D.AssignmentLoc, UO_Minus,
+                                           D.Range.Step);
+        // (Begini - Endi)
+        ExprResult Res1 = SemaRef.CreateBuiltinBinOp(
+            D.AssignmentLoc, BO_Sub, D.Range.Begin, D.Range.End);
+        if (!Res1.isUsable()) {
+          IsCorrect = false;
+          continue;
+        }
+        // (Begini - Endi) - Stepi
+        Res1 = SemaRef.CreateBuiltinBinOp(D.AssignmentLoc, BO_Add, Res1.get(),
+                                          St1.get());
+        if (!Res1.isUsable()) {
+          IsCorrect = false;
+          continue;
+        }
+        // (Begini - Endi) - Stepi - 1
+        Res1 = SemaRef.CreateBuiltinBinOp(
+            D.AssignmentLoc, BO_Sub, Res1.get(),
+            SemaRef.ActOnIntegerConstant(D.AssignmentLoc, 1).get());
+        if (!Res1.isUsable()) {
+          IsCorrect = false;
+          continue;
+        }
+        // ((Begini - Endi) - Stepi - 1) / (-Stepi)
+        Res1 = SemaRef.CreateBuiltinBinOp(D.AssignmentLoc, BO_Div, Res1.get(),
+                                          St1.get());
+        if (!Res1.isUsable()) {
+          IsCorrect = false;
+          continue;
+        }
+        // Stepi > 0.
+        ExprResult CmpRes = SemaRef.CreateBuiltinBinOp(
+            D.AssignmentLoc, BO_GT, D.Range.Step,
+            SemaRef.ActOnIntegerConstant(D.AssignmentLoc, 0).get());
+        if (!CmpRes.isUsable()) {
+          IsCorrect = false;
+          continue;
+        }
+        Res = SemaRef.ActOnConditionalOp(D.AssignmentLoc, D.AssignmentLoc,
+                                         CmpRes.get(), Res.get(), Res1.get());
+        if (!Res.isUsable()) {
+          IsCorrect = false;
+          continue;
+        }
+      }
+      Res = SemaRef.ActOnFinishFullExpr(Res.get(), /*DiscardedValue=*/false);
+      if (!Res.isUsable()) {
+        IsCorrect = false;
+        continue;
+      }
+
+      // Build counter update.
+      // Build counter.
+      auto *CounterVD = VarDecl::Create(Context, SemaRef.CurContext,
+                                        D.IteratorDecl->getBeginLoc(),
+                                        D.IteratorDecl->getBeginLoc(), nullptr,
+                                        Res.get()->getType(), nullptr, SC_None);
+      CounterVD->setImplicit();
+      ExprResult RefRes =
+          SemaRef.BuildDeclRefExpr(CounterVD, CounterVD->getType(), VK_LValue,
+                                   D.IteratorDecl->getBeginLoc());
+      // Build counter update.
+      // I = Begini + counter * Stepi;
+      ExprResult UpdateRes;
+      if (D.Range.Step) {
+        UpdateRes = SemaRef.CreateBuiltinBinOp(
+            D.AssignmentLoc, BO_Mul,
+            SemaRef.DefaultLvalueConversion(RefRes.get()).get(), St.get());
+      } else {
+        UpdateRes = SemaRef.DefaultLvalueConversion(RefRes.get());
+      }
+      if (!UpdateRes.isUsable()) {
+        IsCorrect = false;
+        continue;
+      }
+      UpdateRes = SemaRef.CreateBuiltinBinOp(D.AssignmentLoc, BO_Add,
+                                             D.Range.Begin, UpdateRes.get());
+      if (!UpdateRes.isUsable()) {
+        IsCorrect = false;
+        continue;
+      }
+      ExprResult VDRes =
+          SemaRef.BuildDeclRefExpr(cast<VarDecl>(D.IteratorDecl),
+                                   cast<VarDecl>(D.IteratorDecl)->getType(),
+                                   VK_LValue, D.IteratorDecl->getBeginLoc());
+      UpdateRes = SemaRef.CreateBuiltinBinOp(D.AssignmentLoc, BO_Assign,
+                                             VDRes.get(), UpdateRes.get());
+      if (!UpdateRes.isUsable()) {
+        IsCorrect = false;
+        continue;
+      }
+      UpdateRes =
+          SemaRef.ActOnFinishFullExpr(UpdateRes.get(), /*DiscardedValue=*/true);
+      if (!UpdateRes.isUsable()) {
+        IsCorrect = false;
+        continue;
+      }
+      ExprResult CounterUpdateRes = SemaRef.CreateBuiltinUnaryOp(
+          D.AssignmentLoc, UO_PreInc, RefRes.get());
+      if (!CounterUpdateRes.isUsable()) {
+        IsCorrect = false;
+        continue;
+      }
+      CounterUpdateRes = SemaRef.ActOnFinishFullExpr(CounterUpdateRes.get(),
+                                                     /*DiscardedValue=*/true);
+      if (!CounterUpdateRes.isUsable()) {
+        IsCorrect = false;
+        continue;
+      }
+      OMPIteratorHelperData &HD = Helpers.emplace_back();
+      HD.CounterVD = CounterVD;
+      HD.Upper = Res.get();
+      HD.Update = UpdateRes.get();
+      HD.CounterUpdate = CounterUpdateRes.get();
+    }
+  } else {
+    Helpers.assign(ID.size(), {});
+  }
+  if (!IsCorrect) {
+    // Invalidate all created iterator declarations if error is found.
+    for (const OMPIteratorExpr::IteratorDefinition &D : ID) {
+      if (Decl *ID = D.IteratorDecl)
+        ID->setInvalidDecl();
+    }
+    return ExprError();
+  }
+  return OMPIteratorExpr::Create(Context, Context.OMPIteratorTy, IteratorKwLoc,
+                                 LLoc, RLoc, ID, Helpers);
+}
+
+SemaOpenMP::SemaOpenMP(Sema &S)
+    : SemaBase(S), VarDataSharingAttributesStack(nullptr) {}
diff --git a/clang/lib/Sema/SemaStmt.cpp b/clang/lib/Sema/SemaStmt.cpp
index d28c24c..a7b33f0 100644
--- a/clang/lib/Sema/SemaStmt.cpp
+++ b/clang/lib/Sema/SemaStmt.cpp
@@ -35,6 +35,7 @@
 #include "clang/Sema/ScopeInfo.h"
 #include "clang/Sema/SemaCUDA.h"
 #include "clang/Sema/SemaInternal.h"
+#include "clang/Sema/SemaOpenMP.h"
 #include "llvm/ADT/ArrayRef.h"
 #include "llvm/ADT/DenseMap.h"
 #include "llvm/ADT/STLExtras.h"
@@ -3097,7 +3098,7 @@ StmtResult Sema::BuildCXXForRangeStmt(
   // In OpenMP loop region loop control variable must be private. Perform
   // analysis of first part (if any).
   if (getLangOpts().OpenMP >= 50 && BeginDeclStmt.isUsable())
-    ActOnOpenMPLoopInitialization(ForLoc, BeginDeclStmt.get());
+    OpenMP().ActOnOpenMPLoopInitialization(ForLoc, BeginDeclStmt.get());
 
   return new (Context) CXXForRangeStmt(
       InitStmt, RangeDS, cast_or_null<DeclStmt>(BeginDeclStmt.get()),
@@ -4822,7 +4823,8 @@ buildCapturedStmtCaptureList(Sema &S, CapturedRegionScopeInfo *RSI,
       assert(Cap.isVariableCapture() && "unknown kind of capture");
 
       if (S.getLangOpts().OpenMP && RSI->CapRegionKind == CR_OpenMP)
-        S.setOpenMPCaptureKind(Field, Cap.getVariable(), RSI->OpenMPLevel);
+        S.OpenMP().setOpenMPCaptureKind(Field, Cap.getVariable(),
+                                        RSI->OpenMPLevel);
 
       Captures.push_back(CapturedStmt::Capture(
           Cap.getLocation(),
diff --git a/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp b/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
index c45a8d1..6d359c5 100644
--- a/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
+++ b/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
@@ -28,6 +28,7 @@
 #include "clang/Sema/ScopeInfo.h"
 #include "clang/Sema/SemaCUDA.h"
 #include "clang/Sema/SemaInternal.h"
+#include "clang/Sema/SemaOpenMP.h"
 #include "clang/Sema/Template.h"
 #include "clang/Sema/TemplateInstCallback.h"
 #include "llvm/Support/TimeProfiler.h"
@@ -399,7 +400,7 @@ static void instantiateOMPDeclareSimdDeclAttr(
     ++SI;
   }
   LinModifiers.append(Attr.modifiers_begin(), Attr.modifiers_end());
-  (void)S.ActOnOpenMPDeclareSimdDirective(
+  (void)S.OpenMP().ActOnOpenMPDeclareSimdDirective(
       S.ConvertDeclToDeclGroup(New), Attr.getBranchState(), Simdlen.get(),
       Uniforms, Aligneds, Alignments, Linears, LinModifiers, Steps,
       Attr.getRange());
@@ -476,9 +477,9 @@ static void instantiateOMPDeclareVariantAttr(
   // Check function/variant ref for `omp declare variant` but not for `omp
   // begin declare variant` (which use implicit attributes).
   std::optional<std::pair<FunctionDecl *, Expr *>> DeclVarData =
-      S.checkOpenMPDeclareVariantFunction(S.ConvertDeclToDeclGroup(New), E, TI,
-                                          Attr.appendArgs_size(),
-                                          Attr.getRange());
+      S.OpenMP().checkOpenMPDeclareVariantFunction(
+          S.ConvertDeclToDeclGroup(New), E, TI, Attr.appendArgs_size(),
+          Attr.getRange());
 
   if (!DeclVarData)
     return;
@@ -539,7 +540,7 @@ static void instantiateOMPDeclareVariantAttr(
     AppendArgs.emplace_back(II.IsTarget, II.IsTargetSync);
   }
 
-  S.ActOnOpenMPDeclareVariantDirective(
+  S.OpenMP().ActOnOpenMPDeclareVariantDirective(
       FD, E, TI, NothingExprs, NeedDevicePtrExprs, AppendArgs, SourceLocation(),
       SourceLocation(), Attr.getRange());
 }
@@ -3587,7 +3588,7 @@ Decl *TemplateDeclInstantiator::VisitOMPThreadPrivateDecl(
   }
 
   OMPThreadPrivateDecl *TD =
-    SemaRef.CheckOMPThreadPrivateDecl(D->getLocation(), Vars);
+      SemaRef.OpenMP().CheckOMPThreadPrivateDecl(D->getLocation(), Vars);
 
   TD->setAccess(AS_public);
   Owner->addDecl(TD);
@@ -3610,14 +3611,14 @@ Decl *TemplateDeclInstantiator::VisitOMPAllocateDecl(OMPAllocateDecl *D) {
       ExprResult NewE = SemaRef.SubstExpr(AC->getAllocator(), TemplateArgs);
       if (!NewE.isUsable())
         continue;
-      IC = SemaRef.ActOnOpenMPAllocatorClause(
+      IC = SemaRef.OpenMP().ActOnOpenMPAllocatorClause(
           NewE.get(), AC->getBeginLoc(), AC->getLParenLoc(), AC->getEndLoc());
     } else if (auto *AC = dyn_cast<OMPAlignClause>(C)) {
       ExprResult NewE = SemaRef.SubstExpr(AC->getAlignment(), TemplateArgs);
       if (!NewE.isUsable())
         continue;
-      IC = SemaRef.ActOnOpenMPAlignClause(NewE.get(), AC->getBeginLoc(),
-                                          AC->getLParenLoc(), AC->getEndLoc());
+      IC = SemaRef.OpenMP().ActOnOpenMPAlignClause(
+          NewE.get(), AC->getBeginLoc(), AC->getLParenLoc(), AC->getEndLoc());
       // If align clause value ends up being invalid, this can end up null.
       if (!IC)
         continue;
@@ -3625,7 +3626,7 @@ Decl *TemplateDeclInstantiator::VisitOMPAllocateDecl(OMPAllocateDecl *D) {
     Clauses.push_back(IC);
   }
 
-  Sema::DeclGroupPtrTy Res = SemaRef.ActOnOpenMPAllocateDirective(
+  Sema::DeclGroupPtrTy Res = SemaRef.OpenMP().ActOnOpenMPAllocateDirective(
       D->getLocation(), Vars, Clauses, Owner);
   if (Res.get().isNull())
     return nullptr;
@@ -3646,7 +3647,7 @@ Decl *TemplateDeclInstantiator::VisitOMPDeclareReductionDecl(
       D->getType()->containsUnexpandedParameterPack();
   QualType SubstReductionType;
   if (RequiresInstantiation) {
-    SubstReductionType = SemaRef.ActOnOpenMPDeclareReductionType(
+    SubstReductionType = SemaRef.OpenMP().ActOnOpenMPDeclareReductionType(
         D->getLocation(),
         ParsedType::make(SemaRef.SubstType(
             D->getType(), TemplateArgs, D->getLocation(), DeclarationName())));
@@ -3667,7 +3668,7 @@ Decl *TemplateDeclInstantiator::VisitOMPDeclareReductionDecl(
         SemaRef.CurrentInstantiationScope->findInstantiationOf(PrevDeclInScope)
             ->get<Decl *>());
   }
-  auto DRD = SemaRef.ActOnOpenMPDeclareReductionDirectiveStart(
+  auto DRD = SemaRef.OpenMP().ActOnOpenMPDeclareReductionDirectiveStart(
       /*S=*/nullptr, Owner, D->getDeclName(), ReductionTypes, D->getAccess(),
       PrevDeclInScope);
   auto *NewDRD = cast<OMPDeclareReductionDecl>(DRD.get().getSingleDecl());
@@ -3676,7 +3677,7 @@ Decl *TemplateDeclInstantiator::VisitOMPDeclareReductionDecl(
   Expr *SubstInitializer = nullptr;
   // Combiners instantiation sequence.
   if (Combiner) {
-    SemaRef.ActOnOpenMPDeclareReductionCombinerStart(
+    SemaRef.OpenMP().ActOnOpenMPDeclareReductionCombinerStart(
         /*S=*/nullptr, NewDRD);
     SemaRef.CurrentInstantiationScope->InstantiatedLocal(
         cast<DeclRefExpr>(D->getCombinerIn())->getDecl(),
@@ -3688,12 +3689,14 @@ Decl *TemplateDeclInstantiator::VisitOMPDeclareReductionDecl(
     Sema::CXXThisScopeRAII ThisScope(SemaRef, ThisContext, Qualifiers(),
                                      ThisContext);
     SubstCombiner = SemaRef.SubstExpr(Combiner, TemplateArgs).get();
-    SemaRef.ActOnOpenMPDeclareReductionCombinerEnd(NewDRD, SubstCombiner);
+    SemaRef.OpenMP().ActOnOpenMPDeclareReductionCombinerEnd(NewDRD,
+                                                            SubstCombiner);
   }
   // Initializers instantiation sequence.
   if (Init) {
-    VarDecl *OmpPrivParm = SemaRef.ActOnOpenMPDeclareReductionInitializerStart(
-        /*S=*/nullptr, NewDRD);
+    VarDecl *OmpPrivParm =
+        SemaRef.OpenMP().ActOnOpenMPDeclareReductionInitializerStart(
+            /*S=*/nullptr, NewDRD);
     SemaRef.CurrentInstantiationScope->InstantiatedLocal(
         cast<DeclRefExpr>(D->getInitOrig())->getDecl(),
         cast<DeclRefExpr>(NewDRD->getInitOrig())->getDecl());
@@ -3710,8 +3713,8 @@ Decl *TemplateDeclInstantiator::VisitOMPDeclareReductionDecl(
         SemaRef.InstantiateVariableInitializer(OmpPrivParm, OldPrivParm,
                                                TemplateArgs);
     }
-    SemaRef.ActOnOpenMPDeclareReductionInitializerEnd(NewDRD, SubstInitializer,
-                                                      OmpPrivParm);
+    SemaRef.OpenMP().ActOnOpenMPDeclareReductionInitializerEnd(
+        NewDRD, SubstInitializer, OmpPrivParm);
   }
   IsCorrect = IsCorrect && SubstCombiner &&
               (!Init ||
@@ -3720,7 +3723,7 @@ Decl *TemplateDeclInstantiator::VisitOMPDeclareReductionDecl(
                (D->getInitializerKind() != OMPDeclareReductionInitKind::Call &&
                 !SubstInitializer));
 
-  (void)SemaRef.ActOnOpenMPDeclareReductionDirectiveEnd(
+  (void)SemaRef.OpenMP().ActOnOpenMPDeclareReductionDirectiveEnd(
       /*S=*/nullptr, DRD, IsCorrect && !D->isInvalidDecl());
 
   return NewDRD;
@@ -3736,7 +3739,7 @@ TemplateDeclInstantiator::VisitOMPDeclareMapperDecl(OMPDeclareMapperDecl *D) {
   QualType SubstMapperTy;
   DeclarationName VN = D->getVarName();
   if (RequiresInstantiation) {
-    SubstMapperTy = SemaRef.ActOnOpenMPDeclareMapperType(
+    SubstMapperTy = SemaRef.OpenMP().ActOnOpenMPDeclareMapperType(
         D->getLocation(),
         ParsedType::make(SemaRef.SubstType(D->getType(), TemplateArgs,
                                            D->getLocation(), VN)));
@@ -3756,11 +3759,12 @@ TemplateDeclInstantiator::VisitOMPDeclareMapperDecl(OMPDeclareMapperDecl *D) {
   SmallVector<OMPClause *, 6> Clauses;
   // Instantiate the mapper variable.
   DeclarationNameInfo DirName;
-  SemaRef.StartOpenMPDSABlock(llvm::omp::OMPD_declare_mapper, DirName,
-                              /*S=*/nullptr,
-                              (*D->clauselist_begin())->getBeginLoc());
-  ExprResult MapperVarRef = SemaRef.ActOnOpenMPDeclareMapperDirectiveVarDecl(
-      /*S=*/nullptr, SubstMapperTy, D->getLocation(), VN);
+  SemaRef.OpenMP().StartOpenMPDSABlock(llvm::omp::OMPD_declare_mapper, DirName,
+                                       /*S=*/nullptr,
+                                       (*D->clauselist_begin())->getBeginLoc());
+  ExprResult MapperVarRef =
+      SemaRef.OpenMP().ActOnOpenMPDeclareMapperDirectiveVarDecl(
+          /*S=*/nullptr, SubstMapperTy, D->getLocation(), VN);
   SemaRef.CurrentInstantiationScope->InstantiatedLocal(
       cast<DeclRefExpr>(D->getMapperVarRef())->getDecl(),
       cast<DeclRefExpr>(MapperVarRef.get())->getDecl());
@@ -3790,17 +3794,17 @@ TemplateDeclInstantiator::VisitOMPDeclareMapperDecl(OMPDeclareMapperDecl *D) {
         SemaRef.SubstDeclarationNameInfo(OldC->getMapperIdInfo(), TemplateArgs);
     OMPVarListLocTy Locs(OldC->getBeginLoc(), OldC->getLParenLoc(),
                          OldC->getEndLoc());
-    OMPClause *NewC = SemaRef.ActOnOpenMPMapClause(
+    OMPClause *NewC = SemaRef.OpenMP().ActOnOpenMPMapClause(
         OldC->getIteratorModifier(), OldC->getMapTypeModifiers(),
         OldC->getMapTypeModifiersLoc(), SS, NewNameInfo, OldC->getMapType(),
         OldC->isImplicitMapType(), OldC->getMapLoc(), OldC->getColonLoc(),
         NewVars, Locs);
     Clauses.push_back(NewC);
   }
-  SemaRef.EndOpenMPDSABlock(nullptr);
+  SemaRef.OpenMP().EndOpenMPDSABlock(nullptr);
   if (!IsCorrect)
     return nullptr;
-  Sema::DeclGroupPtrTy DG = SemaRef.ActOnOpenMPDeclareMapperDirective(
+  Sema::DeclGroupPtrTy DG = SemaRef.OpenMP().ActOnOpenMPDeclareMapperDirective(
       /*S=*/nullptr, Owner, D->getDeclName(), SubstMapperTy, D->getLocation(),
       VN, D->getAccess(), MapperVarRef.get(), Clauses, PrevDeclInScope);
   Decl *NewDMD = DG.get().getSingleDecl();
diff --git a/clang/lib/Sema/SemaType.cpp b/clang/lib/Sema/SemaType.cpp
index 404c4e8..1b31df8 100644
--- a/clang/lib/Sema/SemaType.cpp
+++ b/clang/lib/Sema/SemaType.cpp
@@ -35,6 +35,7 @@
 #include "clang/Sema/ScopeInfo.h"
 #include "clang/Sema/SemaCUDA.h"
 #include "clang/Sema/SemaInternal.h"
+#include "clang/Sema/SemaOpenMP.h"
 #include "clang/Sema/Template.h"
 #include "clang/Sema/TemplateInstCallback.h"
 #include "llvm/ADT/ArrayRef.h"
@@ -2640,7 +2641,7 @@ QualType Sema::BuildArrayType(QualType T, ArraySizeModifier ASM,
   } else if (isSFINAEContext()) {
     VLADiag = diag::err_vla_in_sfinae;
     VLAIsError = true;
-  } else if (getLangOpts().OpenMP && isInOpenMPTaskUntiedContext()) {
+  } else if (getLangOpts().OpenMP && OpenMP().isInOpenMPTaskUntiedContext()) {
     VLADiag = diag::err_openmp_vla_in_task_untied;
     VLAIsError = true;
   } else if (getLangOpts().CPlusPlus) {
diff --git a/clang/lib/Sema/TreeTransform.h b/clang/lib/Sema/TreeTransform.h
index 9d15f3e..acc2d7ff 100644
--- a/clang/lib/Sema/TreeTransform.h
+++ b/clang/lib/Sema/TreeTransform.h
@@ -40,6 +40,7 @@
 #include "clang/Sema/SemaDiagnostic.h"
 #include "clang/Sema/SemaInternal.h"
 #include "clang/Sema/SemaOpenACC.h"
+#include "clang/Sema/SemaOpenMP.h"
 #include "clang/Sema/SemaSYCL.h"
 #include "llvm/ADT/ArrayRef.h"
 #include "llvm/Support/ErrorHandling.h"
@@ -1656,7 +1657,7 @@ public:
   /// Ensures that the outermost loop in @p LoopStmt is wrapped by a
   /// OMPCanonicalLoop.
   StmtResult RebuildOMPCanonicalLoop(Stmt *LoopStmt) {
-    return getSema().ActOnOpenMPCanonicalLoop(LoopStmt);
+    return getSema().OpenMP().ActOnOpenMPCanonicalLoop(LoopStmt);
   }
 
   /// Build a new OpenMP executable directive.
@@ -1669,7 +1670,7 @@ public:
       Stmt *AStmt, SourceLocation StartLoc, SourceLocation EndLoc,
       OpenMPDirectiveKind PrevMappedDirective = OMPD_unknown) {
 
-    return getSema().ActOnOpenMPExecutableDirective(
+    return getSema().OpenMP().ActOnOpenMPExecutableDirective(
         Kind, DirName, CancelRegion, Clauses, AStmt, StartLoc, EndLoc,
         PrevMappedDirective);
   }
@@ -1684,9 +1685,9 @@ public:
                                 SourceLocation NameModifierLoc,
                                 SourceLocation ColonLoc,
                                 SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPIfClause(NameModifier, Condition, StartLoc,
-                                         LParenLoc, NameModifierLoc, ColonLoc,
-                                         EndLoc);
+    return getSema().OpenMP().ActOnOpenMPIfClause(
+        NameModifier, Condition, StartLoc, LParenLoc, NameModifierLoc, ColonLoc,
+        EndLoc);
   }
 
   /// Build a new OpenMP 'final' clause.
@@ -1696,8 +1697,8 @@ public:
   OMPClause *RebuildOMPFinalClause(Expr *Condition, SourceLocation StartLoc,
                                    SourceLocation LParenLoc,
                                    SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPFinalClause(Condition, StartLoc, LParenLoc,
-                                            EndLoc);
+    return getSema().OpenMP().ActOnOpenMPFinalClause(Condition, StartLoc,
+                                                     LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'num_threads' clause.
@@ -1708,8 +1709,8 @@ public:
                                         SourceLocation StartLoc,
                                         SourceLocation LParenLoc,
                                         SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPNumThreadsClause(NumThreads, StartLoc,
-                                                 LParenLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPNumThreadsClause(NumThreads, StartLoc,
+                                                          LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'safelen' clause.
@@ -1719,7 +1720,8 @@ public:
   OMPClause *RebuildOMPSafelenClause(Expr *Len, SourceLocation StartLoc,
                                      SourceLocation LParenLoc,
                                      SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPSafelenClause(Len, StartLoc, LParenLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPSafelenClause(Len, StartLoc, LParenLoc,
+                                                       EndLoc);
   }
 
   /// Build a new OpenMP 'simdlen' clause.
@@ -1729,28 +1731,30 @@ public:
   OMPClause *RebuildOMPSimdlenClause(Expr *Len, SourceLocation StartLoc,
                                      SourceLocation LParenLoc,
                                      SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPSimdlenClause(Len, StartLoc, LParenLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPSimdlenClause(Len, StartLoc, LParenLoc,
+                                                       EndLoc);
   }
 
   OMPClause *RebuildOMPSizesClause(ArrayRef<Expr *> Sizes,
                                    SourceLocation StartLoc,
                                    SourceLocation LParenLoc,
                                    SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPSizesClause(Sizes, StartLoc, LParenLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPSizesClause(Sizes, StartLoc, LParenLoc,
+                                                     EndLoc);
   }
 
   /// Build a new OpenMP 'full' clause.
   OMPClause *RebuildOMPFullClause(SourceLocation StartLoc,
                                   SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPFullClause(StartLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPFullClause(StartLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'partial' clause.
   OMPClause *RebuildOMPPartialClause(Expr *Factor, SourceLocation StartLoc,
                                      SourceLocation LParenLoc,
                                      SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPPartialClause(Factor, StartLoc, LParenLoc,
-                                              EndLoc);
+    return getSema().OpenMP().ActOnOpenMPPartialClause(Factor, StartLoc,
+                                                       LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'allocator' clause.
@@ -1760,7 +1764,8 @@ public:
   OMPClause *RebuildOMPAllocatorClause(Expr *A, SourceLocation StartLoc,
                                        SourceLocation LParenLoc,
                                        SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPAllocatorClause(A, StartLoc, LParenLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPAllocatorClause(A, StartLoc, LParenLoc,
+                                                         EndLoc);
   }
 
   /// Build a new OpenMP 'collapse' clause.
@@ -1770,8 +1775,8 @@ public:
   OMPClause *RebuildOMPCollapseClause(Expr *Num, SourceLocation StartLoc,
                                       SourceLocation LParenLoc,
                                       SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPCollapseClause(Num, StartLoc, LParenLoc,
-                                               EndLoc);
+    return getSema().OpenMP().ActOnOpenMPCollapseClause(Num, StartLoc,
+                                                        LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'default' clause.
@@ -1782,8 +1787,8 @@ public:
                                      SourceLocation StartLoc,
                                      SourceLocation LParenLoc,
                                      SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPDefaultClause(Kind, KindKwLoc,
-                                              StartLoc, LParenLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPDefaultClause(
+        Kind, KindKwLoc, StartLoc, LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'proc_bind' clause.
@@ -1795,8 +1800,8 @@ public:
                                       SourceLocation StartLoc,
                                       SourceLocation LParenLoc,
                                       SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPProcBindClause(Kind, KindKwLoc,
-                                               StartLoc, LParenLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPProcBindClause(
+        Kind, KindKwLoc, StartLoc, LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'schedule' clause.
@@ -1808,7 +1813,7 @@ public:
       OpenMPScheduleClauseKind Kind, Expr *ChunkSize, SourceLocation StartLoc,
       SourceLocation LParenLoc, SourceLocation M1Loc, SourceLocation M2Loc,
       SourceLocation KindLoc, SourceLocation CommaLoc, SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPScheduleClause(
+    return getSema().OpenMP().ActOnOpenMPScheduleClause(
         M1, M2, Kind, ChunkSize, StartLoc, LParenLoc, M1Loc, M2Loc, KindLoc,
         CommaLoc, EndLoc);
   }
@@ -1820,7 +1825,8 @@ public:
   OMPClause *RebuildOMPOrderedClause(SourceLocation StartLoc,
                                      SourceLocation EndLoc,
                                      SourceLocation LParenLoc, Expr *Num) {
-    return getSema().ActOnOpenMPOrderedClause(StartLoc, EndLoc, LParenLoc, Num);
+    return getSema().OpenMP().ActOnOpenMPOrderedClause(StartLoc, EndLoc,
+                                                       LParenLoc, Num);
   }
 
   /// Build a new OpenMP 'private' clause.
@@ -1831,8 +1837,8 @@ public:
                                      SourceLocation StartLoc,
                                      SourceLocation LParenLoc,
                                      SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPPrivateClause(VarList, StartLoc, LParenLoc,
-                                              EndLoc);
+    return getSema().OpenMP().ActOnOpenMPPrivateClause(VarList, StartLoc,
+                                                       LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'firstprivate' clause.
@@ -1843,8 +1849,8 @@ public:
                                           SourceLocation StartLoc,
                                           SourceLocation LParenLoc,
                                           SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPFirstprivateClause(VarList, StartLoc, LParenLoc,
-                                                   EndLoc);
+    return getSema().OpenMP().ActOnOpenMPFirstprivateClause(VarList, StartLoc,
+                                                            LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'lastprivate' clause.
@@ -1858,7 +1864,7 @@ public:
                                          SourceLocation StartLoc,
                                          SourceLocation LParenLoc,
                                          SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPLastprivateClause(
+    return getSema().OpenMP().ActOnOpenMPLastprivateClause(
         VarList, LPKind, LPKindLoc, ColonLoc, StartLoc, LParenLoc, EndLoc);
   }
 
@@ -1870,8 +1876,8 @@ public:
                                     SourceLocation StartLoc,
                                     SourceLocation LParenLoc,
                                     SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPSharedClause(VarList, StartLoc, LParenLoc,
-                                             EndLoc);
+    return getSema().OpenMP().ActOnOpenMPSharedClause(VarList, StartLoc,
+                                                      LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'reduction' clause.
@@ -1885,7 +1891,7 @@ public:
       SourceLocation EndLoc, CXXScopeSpec &ReductionIdScopeSpec,
       const DeclarationNameInfo &ReductionId,
       ArrayRef<Expr *> UnresolvedReductions) {
-    return getSema().ActOnOpenMPReductionClause(
+    return getSema().OpenMP().ActOnOpenMPReductionClause(
         VarList, Modifier, StartLoc, LParenLoc, ModifierLoc, ColonLoc, EndLoc,
         ReductionIdScopeSpec, ReductionId, UnresolvedReductions);
   }
@@ -1900,7 +1906,7 @@ public:
       CXXScopeSpec &ReductionIdScopeSpec,
       const DeclarationNameInfo &ReductionId,
       ArrayRef<Expr *> UnresolvedReductions) {
-    return getSema().ActOnOpenMPTaskReductionClause(
+    return getSema().OpenMP().ActOnOpenMPTaskReductionClause(
         VarList, StartLoc, LParenLoc, ColonLoc, EndLoc, ReductionIdScopeSpec,
         ReductionId, UnresolvedReductions);
   }
@@ -1916,7 +1922,7 @@ public:
                               CXXScopeSpec &ReductionIdScopeSpec,
                               const DeclarationNameInfo &ReductionId,
                               ArrayRef<Expr *> UnresolvedReductions) {
-    return getSema().ActOnOpenMPInReductionClause(
+    return getSema().OpenMP().ActOnOpenMPInReductionClause(
         VarList, StartLoc, LParenLoc, ColonLoc, EndLoc, ReductionIdScopeSpec,
         ReductionId, UnresolvedReductions);
   }
@@ -1930,9 +1936,9 @@ public:
       SourceLocation LParenLoc, OpenMPLinearClauseKind Modifier,
       SourceLocation ModifierLoc, SourceLocation ColonLoc,
       SourceLocation StepModifierLoc, SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPLinearClause(VarList, Step, StartLoc, LParenLoc,
-                                             Modifier, ModifierLoc, ColonLoc,
-                                             StepModifierLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPLinearClause(
+        VarList, Step, StartLoc, LParenLoc, Modifier, ModifierLoc, ColonLoc,
+        StepModifierLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'aligned' clause.
@@ -1944,8 +1950,8 @@ public:
                                      SourceLocation LParenLoc,
                                      SourceLocation ColonLoc,
                                      SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPAlignedClause(VarList, Alignment, StartLoc,
-                                              LParenLoc, ColonLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPAlignedClause(
+        VarList, Alignment, StartLoc, LParenLoc, ColonLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'copyin' clause.
@@ -1956,8 +1962,8 @@ public:
                                     SourceLocation StartLoc,
                                     SourceLocation LParenLoc,
                                     SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPCopyinClause(VarList, StartLoc, LParenLoc,
-                                             EndLoc);
+    return getSema().OpenMP().ActOnOpenMPCopyinClause(VarList, StartLoc,
+                                                      LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'copyprivate' clause.
@@ -1968,8 +1974,8 @@ public:
                                          SourceLocation StartLoc,
                                          SourceLocation LParenLoc,
                                          SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPCopyprivateClause(VarList, StartLoc, LParenLoc,
-                                                  EndLoc);
+    return getSema().OpenMP().ActOnOpenMPCopyprivateClause(VarList, StartLoc,
+                                                           LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'flush' pseudo clause.
@@ -1980,8 +1986,8 @@ public:
                                    SourceLocation StartLoc,
                                    SourceLocation LParenLoc,
                                    SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPFlushClause(VarList, StartLoc, LParenLoc,
-                                            EndLoc);
+    return getSema().OpenMP().ActOnOpenMPFlushClause(VarList, StartLoc,
+                                                     LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'depobj' pseudo clause.
@@ -1991,8 +1997,8 @@ public:
   OMPClause *RebuildOMPDepobjClause(Expr *Depobj, SourceLocation StartLoc,
                                     SourceLocation LParenLoc,
                                     SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPDepobjClause(Depobj, StartLoc, LParenLoc,
-                                             EndLoc);
+    return getSema().OpenMP().ActOnOpenMPDepobjClause(Depobj, StartLoc,
+                                                      LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'depend' pseudo clause.
@@ -2004,8 +2010,8 @@ public:
                                     SourceLocation StartLoc,
                                     SourceLocation LParenLoc,
                                     SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPDependClause(Data, DepModifier, VarList,
-                                             StartLoc, LParenLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPDependClause(
+        Data, DepModifier, VarList, StartLoc, LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'device' clause.
@@ -2017,8 +2023,8 @@ public:
                                     SourceLocation LParenLoc,
                                     SourceLocation ModifierLoc,
                                     SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPDeviceClause(Modifier, Device, StartLoc,
-                                             LParenLoc, ModifierLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPDeviceClause(
+        Modifier, Device, StartLoc, LParenLoc, ModifierLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'map' clause.
@@ -2032,7 +2038,7 @@ public:
       OpenMPMapClauseKind MapType, bool IsMapTypeImplicit,
       SourceLocation MapLoc, SourceLocation ColonLoc, ArrayRef<Expr *> VarList,
       const OMPVarListLocTy &Locs, ArrayRef<Expr *> UnresolvedMappers) {
-    return getSema().ActOnOpenMPMapClause(
+    return getSema().OpenMP().ActOnOpenMPMapClause(
         IteratorModifier, MapTypeModifiers, MapTypeModifiersLoc,
         MapperIdScopeSpec, MapperId, MapType, IsMapTypeImplicit, MapLoc,
         ColonLoc, VarList, Locs,
@@ -2048,8 +2054,8 @@ public:
                                       SourceLocation LParenLoc,
                                       SourceLocation ColonLoc,
                                       SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPAllocateClause(Allocate, VarList, StartLoc,
-                                               LParenLoc, ColonLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPAllocateClause(
+        Allocate, VarList, StartLoc, LParenLoc, ColonLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'num_teams' clause.
@@ -2059,8 +2065,8 @@ public:
   OMPClause *RebuildOMPNumTeamsClause(Expr *NumTeams, SourceLocation StartLoc,
                                       SourceLocation LParenLoc,
                                       SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPNumTeamsClause(NumTeams, StartLoc, LParenLoc,
-                                               EndLoc);
+    return getSema().OpenMP().ActOnOpenMPNumTeamsClause(NumTeams, StartLoc,
+                                                        LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'thread_limit' clause.
@@ -2071,8 +2077,8 @@ public:
                                          SourceLocation StartLoc,
                                          SourceLocation LParenLoc,
                                          SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPThreadLimitClause(ThreadLimit, StartLoc,
-                                                  LParenLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPThreadLimitClause(
+        ThreadLimit, StartLoc, LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'priority' clause.
@@ -2082,8 +2088,8 @@ public:
   OMPClause *RebuildOMPPriorityClause(Expr *Priority, SourceLocation StartLoc,
                                       SourceLocation LParenLoc,
                                       SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPPriorityClause(Priority, StartLoc, LParenLoc,
-                                               EndLoc);
+    return getSema().OpenMP().ActOnOpenMPPriorityClause(Priority, StartLoc,
+                                                        LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'grainsize' clause.
@@ -2095,8 +2101,8 @@ public:
                                        SourceLocation LParenLoc,
                                        SourceLocation ModifierLoc,
                                        SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPGrainsizeClause(Modifier, Device, StartLoc,
-                                                LParenLoc, ModifierLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPGrainsizeClause(
+        Modifier, Device, StartLoc, LParenLoc, ModifierLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'num_tasks' clause.
@@ -2108,8 +2114,8 @@ public:
                                       SourceLocation LParenLoc,
                                       SourceLocation ModifierLoc,
                                       SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPNumTasksClause(Modifier, NumTasks, StartLoc,
-                                               LParenLoc, ModifierLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPNumTasksClause(
+        Modifier, NumTasks, StartLoc, LParenLoc, ModifierLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'hint' clause.
@@ -2119,7 +2125,8 @@ public:
   OMPClause *RebuildOMPHintClause(Expr *Hint, SourceLocation StartLoc,
                                   SourceLocation LParenLoc,
                                   SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPHintClause(Hint, StartLoc, LParenLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPHintClause(Hint, StartLoc, LParenLoc,
+                                                    EndLoc);
   }
 
   /// Build a new OpenMP 'detach' clause.
@@ -2129,7 +2136,8 @@ public:
   OMPClause *RebuildOMPDetachClause(Expr *Evt, SourceLocation StartLoc,
                                     SourceLocation LParenLoc,
                                     SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPDetachClause(Evt, StartLoc, LParenLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPDetachClause(Evt, StartLoc, LParenLoc,
+                                                      EndLoc);
   }
 
   /// Build a new OpenMP 'dist_schedule' clause.
@@ -2141,7 +2149,7 @@ public:
                                Expr *ChunkSize, SourceLocation StartLoc,
                                SourceLocation LParenLoc, SourceLocation KindLoc,
                                SourceLocation CommaLoc, SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPDistScheduleClause(
+    return getSema().OpenMP().ActOnOpenMPDistScheduleClause(
         Kind, ChunkSize, StartLoc, LParenLoc, KindLoc, CommaLoc, EndLoc);
   }
 
@@ -2156,9 +2164,9 @@ public:
                      DeclarationNameInfo &MapperId, SourceLocation ColonLoc,
                      ArrayRef<Expr *> VarList, const OMPVarListLocTy &Locs,
                      ArrayRef<Expr *> UnresolvedMappers) {
-    return getSema().ActOnOpenMPToClause(MotionModifiers, MotionModifiersLoc,
-                                         MapperIdScopeSpec, MapperId, ColonLoc,
-                                         VarList, Locs, UnresolvedMappers);
+    return getSema().OpenMP().ActOnOpenMPToClause(
+        MotionModifiers, MotionModifiersLoc, MapperIdScopeSpec, MapperId,
+        ColonLoc, VarList, Locs, UnresolvedMappers);
   }
 
   /// Build a new OpenMP 'from' clause.
@@ -2172,7 +2180,7 @@ public:
                        DeclarationNameInfo &MapperId, SourceLocation ColonLoc,
                        ArrayRef<Expr *> VarList, const OMPVarListLocTy &Locs,
                        ArrayRef<Expr *> UnresolvedMappers) {
-    return getSema().ActOnOpenMPFromClause(
+    return getSema().OpenMP().ActOnOpenMPFromClause(
         MotionModifiers, MotionModifiersLoc, MapperIdScopeSpec, MapperId,
         ColonLoc, VarList, Locs, UnresolvedMappers);
   }
@@ -2183,7 +2191,7 @@ public:
   /// Subclasses may override this routine to provide different behavior.
   OMPClause *RebuildOMPUseDevicePtrClause(ArrayRef<Expr *> VarList,
                                           const OMPVarListLocTy &Locs) {
-    return getSema().ActOnOpenMPUseDevicePtrClause(VarList, Locs);
+    return getSema().OpenMP().ActOnOpenMPUseDevicePtrClause(VarList, Locs);
   }
 
   /// Build a new OpenMP 'use_device_addr' clause.
@@ -2192,7 +2200,7 @@ public:
   /// Subclasses may override this routine to provide different behavior.
   OMPClause *RebuildOMPUseDeviceAddrClause(ArrayRef<Expr *> VarList,
                                            const OMPVarListLocTy &Locs) {
-    return getSema().ActOnOpenMPUseDeviceAddrClause(VarList, Locs);
+    return getSema().OpenMP().ActOnOpenMPUseDeviceAddrClause(VarList, Locs);
   }
 
   /// Build a new OpenMP 'is_device_ptr' clause.
@@ -2201,7 +2209,7 @@ public:
   /// Subclasses may override this routine to provide different behavior.
   OMPClause *RebuildOMPIsDevicePtrClause(ArrayRef<Expr *> VarList,
                                          const OMPVarListLocTy &Locs) {
-    return getSema().ActOnOpenMPIsDevicePtrClause(VarList, Locs);
+    return getSema().OpenMP().ActOnOpenMPIsDevicePtrClause(VarList, Locs);
   }
 
   /// Build a new OpenMP 'has_device_addr' clause.
@@ -2210,7 +2218,7 @@ public:
   /// Subclasses may override this routine to provide different behavior.
   OMPClause *RebuildOMPHasDeviceAddrClause(ArrayRef<Expr *> VarList,
                                            const OMPVarListLocTy &Locs) {
-    return getSema().ActOnOpenMPHasDeviceAddrClause(VarList, Locs);
+    return getSema().OpenMP().ActOnOpenMPHasDeviceAddrClause(VarList, Locs);
   }
 
   /// Build a new OpenMP 'defaultmap' clause.
@@ -2224,8 +2232,8 @@ public:
                                         SourceLocation MLoc,
                                         SourceLocation KindLoc,
                                         SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPDefaultmapClause(M, Kind, StartLoc, LParenLoc,
-                                                 MLoc, KindLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPDefaultmapClause(
+        M, Kind, StartLoc, LParenLoc, MLoc, KindLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'nontemporal' clause.
@@ -2236,8 +2244,8 @@ public:
                                          SourceLocation StartLoc,
                                          SourceLocation LParenLoc,
                                          SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPNontemporalClause(VarList, StartLoc, LParenLoc,
-                                                  EndLoc);
+    return getSema().OpenMP().ActOnOpenMPNontemporalClause(VarList, StartLoc,
+                                                           LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'inclusive' clause.
@@ -2248,8 +2256,8 @@ public:
                                        SourceLocation StartLoc,
                                        SourceLocation LParenLoc,
                                        SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPInclusiveClause(VarList, StartLoc, LParenLoc,
-                                                EndLoc);
+    return getSema().OpenMP().ActOnOpenMPInclusiveClause(VarList, StartLoc,
+                                                         LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'exclusive' clause.
@@ -2260,8 +2268,8 @@ public:
                                        SourceLocation StartLoc,
                                        SourceLocation LParenLoc,
                                        SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPExclusiveClause(VarList, StartLoc, LParenLoc,
-                                                EndLoc);
+    return getSema().OpenMP().ActOnOpenMPExclusiveClause(VarList, StartLoc,
+                                                         LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'uses_allocators' clause.
@@ -2269,10 +2277,10 @@ public:
   /// By default, performs semantic analysis to build the new OpenMP clause.
   /// Subclasses may override this routine to provide different behavior.
   OMPClause *RebuildOMPUsesAllocatorsClause(
-      ArrayRef<Sema::UsesAllocatorsData> Data, SourceLocation StartLoc,
+      ArrayRef<SemaOpenMP::UsesAllocatorsData> Data, SourceLocation StartLoc,
       SourceLocation LParenLoc, SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPUsesAllocatorClause(StartLoc, LParenLoc, EndLoc,
-                                                    Data);
+    return getSema().OpenMP().ActOnOpenMPUsesAllocatorClause(
+        StartLoc, LParenLoc, EndLoc, Data);
   }
 
   /// Build a new OpenMP 'affinity' clause.
@@ -2284,8 +2292,8 @@ public:
                                       SourceLocation ColonLoc,
                                       SourceLocation EndLoc, Expr *Modifier,
                                       ArrayRef<Expr *> Locators) {
-    return getSema().ActOnOpenMPAffinityClause(StartLoc, LParenLoc, ColonLoc,
-                                               EndLoc, Modifier, Locators);
+    return getSema().OpenMP().ActOnOpenMPAffinityClause(
+        StartLoc, LParenLoc, ColonLoc, EndLoc, Modifier, Locators);
   }
 
   /// Build a new OpenMP 'order' clause.
@@ -2296,8 +2304,8 @@ public:
       OpenMPOrderClauseKind Kind, SourceLocation KindKwLoc,
       SourceLocation StartLoc, SourceLocation LParenLoc, SourceLocation EndLoc,
       OpenMPOrderClauseModifier Modifier, SourceLocation ModifierKwLoc) {
-    return getSema().ActOnOpenMPOrderClause(Modifier, Kind, StartLoc, LParenLoc,
-                                            ModifierKwLoc, KindKwLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPOrderClause(
+        Modifier, Kind, StartLoc, LParenLoc, ModifierKwLoc, KindKwLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'init' clause.
@@ -2309,8 +2317,8 @@ public:
                                   SourceLocation LParenLoc,
                                   SourceLocation VarLoc,
                                   SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPInitClause(InteropVar, InteropInfo, StartLoc,
-                                           LParenLoc, VarLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPInitClause(
+        InteropVar, InteropInfo, StartLoc, LParenLoc, VarLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'use' clause.
@@ -2320,8 +2328,8 @@ public:
   OMPClause *RebuildOMPUseClause(Expr *InteropVar, SourceLocation StartLoc,
                                  SourceLocation LParenLoc,
                                  SourceLocation VarLoc, SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPUseClause(InteropVar, StartLoc, LParenLoc,
-                                          VarLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPUseClause(InteropVar, StartLoc,
+                                                   LParenLoc, VarLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'destroy' clause.
@@ -2332,8 +2340,8 @@ public:
                                      SourceLocation LParenLoc,
                                      SourceLocation VarLoc,
                                      SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPDestroyClause(InteropVar, StartLoc, LParenLoc,
-                                              VarLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPDestroyClause(
+        InteropVar, StartLoc, LParenLoc, VarLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'novariants' clause.
@@ -2344,8 +2352,8 @@ public:
                                         SourceLocation StartLoc,
                                         SourceLocation LParenLoc,
                                         SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPNovariantsClause(Condition, StartLoc, LParenLoc,
-                                                 EndLoc);
+    return getSema().OpenMP().ActOnOpenMPNovariantsClause(Condition, StartLoc,
+                                                          LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'nocontext' clause.
@@ -2355,8 +2363,8 @@ public:
   OMPClause *RebuildOMPNocontextClause(Expr *Condition, SourceLocation StartLoc,
                                        SourceLocation LParenLoc,
                                        SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPNocontextClause(Condition, StartLoc, LParenLoc,
-                                                EndLoc);
+    return getSema().OpenMP().ActOnOpenMPNocontextClause(Condition, StartLoc,
+                                                         LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'filter' clause.
@@ -2366,8 +2374,8 @@ public:
   OMPClause *RebuildOMPFilterClause(Expr *ThreadID, SourceLocation StartLoc,
                                     SourceLocation LParenLoc,
                                     SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPFilterClause(ThreadID, StartLoc, LParenLoc,
-                                             EndLoc);
+    return getSema().OpenMP().ActOnOpenMPFilterClause(ThreadID, StartLoc,
+                                                      LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'bind' clause.
@@ -2379,8 +2387,8 @@ public:
                                   SourceLocation StartLoc,
                                   SourceLocation LParenLoc,
                                   SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPBindClause(Kind, KindLoc, StartLoc, LParenLoc,
-                                           EndLoc);
+    return getSema().OpenMP().ActOnOpenMPBindClause(Kind, KindLoc, StartLoc,
+                                                    LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'ompx_dyn_cgroup_mem' clause.
@@ -2390,8 +2398,8 @@ public:
   OMPClause *RebuildOMPXDynCGroupMemClause(Expr *Size, SourceLocation StartLoc,
                                            SourceLocation LParenLoc,
                                            SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPXDynCGroupMemClause(Size, StartLoc, LParenLoc,
-                                                    EndLoc);
+    return getSema().OpenMP().ActOnOpenMPXDynCGroupMemClause(Size, StartLoc,
+                                                             LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'ompx_attribute' clause.
@@ -2402,8 +2410,8 @@ public:
                                         SourceLocation StartLoc,
                                         SourceLocation LParenLoc,
                                         SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPXAttributeClause(Attrs, StartLoc, LParenLoc,
-                                                 EndLoc);
+    return getSema().OpenMP().ActOnOpenMPXAttributeClause(Attrs, StartLoc,
+                                                          LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'ompx_bare' clause.
@@ -2412,7 +2420,7 @@ public:
   /// Subclasses may override this routine to provide different behavior.
   OMPClause *RebuildOMPXBareClause(SourceLocation StartLoc,
                                    SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPXBareClause(StartLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPXBareClause(StartLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'align' clause.
@@ -2422,7 +2430,8 @@ public:
   OMPClause *RebuildOMPAlignClause(Expr *A, SourceLocation StartLoc,
                                    SourceLocation LParenLoc,
                                    SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPAlignClause(A, StartLoc, LParenLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPAlignClause(A, StartLoc, LParenLoc,
+                                                     EndLoc);
   }
 
   /// Build a new OpenMP 'at' clause.
@@ -2433,8 +2442,8 @@ public:
                                 SourceLocation StartLoc,
                                 SourceLocation LParenLoc,
                                 SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPAtClause(Kind, KwLoc, StartLoc, LParenLoc,
-                                         EndLoc);
+    return getSema().OpenMP().ActOnOpenMPAtClause(Kind, KwLoc, StartLoc,
+                                                  LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'severity' clause.
@@ -2446,8 +2455,8 @@ public:
                                       SourceLocation StartLoc,
                                       SourceLocation LParenLoc,
                                       SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPSeverityClause(Kind, KwLoc, StartLoc, LParenLoc,
-                                               EndLoc);
+    return getSema().OpenMP().ActOnOpenMPSeverityClause(Kind, KwLoc, StartLoc,
+                                                        LParenLoc, EndLoc);
   }
 
   /// Build a new OpenMP 'message' clause.
@@ -2457,7 +2466,8 @@ public:
   OMPClause *RebuildOMPMessageClause(Expr *MS, SourceLocation StartLoc,
                                      SourceLocation LParenLoc,
                                      SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPMessageClause(MS, StartLoc, LParenLoc, EndLoc);
+    return getSema().OpenMP().ActOnOpenMPMessageClause(MS, StartLoc, LParenLoc,
+                                                       EndLoc);
   }
 
   /// Build a new OpenMP 'doacross' clause.
@@ -2469,7 +2479,7 @@ public:
                            SourceLocation DepLoc, SourceLocation ColonLoc,
                            ArrayRef<Expr *> VarList, SourceLocation StartLoc,
                            SourceLocation LParenLoc, SourceLocation EndLoc) {
-    return getSema().ActOnOpenMPDoacrossClause(
+    return getSema().OpenMP().ActOnOpenMPDoacrossClause(
         DepType, DepLoc, ColonLoc, VarList, StartLoc, LParenLoc, EndLoc);
   }
 
@@ -2777,9 +2787,9 @@ public:
                                         SourceLocation ColonLocSecond,
                                         Expr *Length, Expr *Stride,
                                         SourceLocation RBracketLoc) {
-    return getSema().ActOnOMPArraySectionExpr(Base, LBracketLoc, LowerBound,
-                                              ColonLocFirst, ColonLocSecond,
-                                              Length, Stride, RBracketLoc);
+    return getSema().OpenMP().ActOnOMPArraySectionExpr(
+        Base, LBracketLoc, LowerBound, ColonLocFirst, ColonLocSecond, Length,
+        Stride, RBracketLoc);
   }
 
   /// Build a new array shaping expression.
@@ -2790,19 +2800,20 @@ public:
                                         SourceLocation RParenLoc,
                                         ArrayRef<Expr *> Dims,
                                         ArrayRef<SourceRange> BracketsRanges) {
-    return getSema().ActOnOMPArrayShapingExpr(Base, LParenLoc, RParenLoc, Dims,
-                                              BracketsRanges);
+    return getSema().OpenMP().ActOnOMPArrayShapingExpr(
+        Base, LParenLoc, RParenLoc, Dims, BracketsRanges);
   }
 
   /// Build a new iterator expression.
   ///
   /// By default, performs semantic analysis to build the new expression.
   /// Subclasses may override this routine to provide different behavior.
-  ExprResult RebuildOMPIteratorExpr(
-      SourceLocation IteratorKwLoc, SourceLocation LLoc, SourceLocation RLoc,
-      ArrayRef<Sema::OMPIteratorData> Data) {
-    return getSema().ActOnOMPIteratorExpr(/*Scope=*/nullptr, IteratorKwLoc,
-                                          LLoc, RLoc, Data);
+  ExprResult
+  RebuildOMPIteratorExpr(SourceLocation IteratorKwLoc, SourceLocation LLoc,
+                         SourceLocation RLoc,
+                         ArrayRef<SemaOpenMP::OMPIteratorData> Data) {
+    return getSema().OpenMP().ActOnOMPIteratorExpr(
+        /*Scope=*/nullptr, IteratorKwLoc, LLoc, RLoc, Data);
   }
 
   /// Build a new call expression.
@@ -8060,7 +8071,7 @@ template<typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformForStmt(ForStmt *S) {
   if (getSema().getLangOpts().OpenMP)
-    getSema().startOpenMPLoop();
+    getSema().OpenMP().startOpenMPLoop();
 
   // Transform the initialization statement
   StmtResult Init = getDerived().TransformStmt(S->getInit());
@@ -8070,7 +8081,8 @@ TreeTransform<Derived>::TransformForStmt(ForStmt *S) {
   // In OpenMP loop region loop control variable must be captured and be
   // private. Perform analysis of first part (if any).
   if (getSema().getLangOpts().OpenMP && Init.isUsable())
-    getSema().ActOnOpenMPLoopInitialization(S->getForLoc(), Init.get());
+    getSema().OpenMP().ActOnOpenMPLoopInitialization(S->getForLoc(),
+                                                     Init.get());
 
   // Transform the condition
   Sema::ConditionResult Cond = getDerived().TransformCondition(
@@ -9029,9 +9041,9 @@ StmtResult TreeTransform<Derived>::TransformOMPExecutableDirective(
   for (ArrayRef<OMPClause *>::iterator I = Clauses.begin(), E = Clauses.end();
        I != E; ++I) {
     if (*I) {
-      getDerived().getSema().StartOpenMPClause((*I)->getClauseKind());
+      getDerived().getSema().OpenMP().StartOpenMPClause((*I)->getClauseKind());
       OMPClause *Clause = getDerived().TransformOMPClause(*I);
-      getDerived().getSema().EndOpenMPClause();
+      getDerived().getSema().OpenMP().EndOpenMPClause();
       if (Clause)
         TClauses.push_back(Clause);
     } else {
@@ -9040,8 +9052,9 @@ StmtResult TreeTransform<Derived>::TransformOMPExecutableDirective(
   }
   StmtResult AssociatedStmt;
   if (D->hasAssociatedStmt() && D->getAssociatedStmt()) {
-    getDerived().getSema().ActOnOpenMPRegionStart(D->getDirectiveKind(),
-                                                  /*CurScope=*/nullptr);
+    getDerived().getSema().OpenMP().ActOnOpenMPRegionStart(
+        D->getDirectiveKind(),
+        /*CurScope=*/nullptr);
     StmtResult Body;
     {
       Sema::CompoundScopeRAII CompoundScope(getSema());
@@ -9059,7 +9072,7 @@ StmtResult TreeTransform<Derived>::TransformOMPExecutableDirective(
         Body = getDerived().RebuildOMPCanonicalLoop(Body.get());
     }
     AssociatedStmt =
-        getDerived().getSema().ActOnOpenMPRegionEnd(Body, TClauses);
+        getDerived().getSema().OpenMP().ActOnOpenMPRegionEnd(Body, TClauses);
     if (AssociatedStmt.isInvalid()) {
       return StmtError();
     }
@@ -9100,10 +9113,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPParallelDirective(OMPParallelDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_parallel, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_parallel, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9111,10 +9124,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPSimdDirective(OMPSimdDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_simd, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_simd, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9122,10 +9135,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPTileDirective(OMPTileDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(D->getDirectiveKind(), DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      D->getDirectiveKind(), DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9133,10 +9146,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPUnrollDirective(OMPUnrollDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(D->getDirectiveKind(), DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      D->getDirectiveKind(), DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9144,10 +9157,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPForDirective(OMPForDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_for, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_for, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9155,10 +9168,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPForSimdDirective(OMPForSimdDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_for_simd, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_for_simd, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9166,10 +9179,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPSectionsDirective(OMPSectionsDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_sections, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_sections, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9177,10 +9190,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPSectionDirective(OMPSectionDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_section, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_section, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9188,10 +9201,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPScopeDirective(OMPScopeDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_scope, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_scope, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9199,10 +9212,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPSingleDirective(OMPSingleDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_single, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_single, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9210,20 +9223,20 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPMasterDirective(OMPMasterDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_master, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_master, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
 template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPCriticalDirective(OMPCriticalDirective *D) {
-  getDerived().getSema().StartOpenMPDSABlock(
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
       OMPD_critical, D->getDirectiveName(), nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9231,10 +9244,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPParallelForDirective(
     OMPParallelForDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_parallel_for, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_parallel_for, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9242,10 +9255,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPParallelForSimdDirective(
     OMPParallelForSimdDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_parallel_for_simd, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_parallel_for_simd, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9253,10 +9266,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPParallelMasterDirective(
     OMPParallelMasterDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_parallel_master, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_parallel_master, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9264,10 +9277,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPParallelMaskedDirective(
     OMPParallelMaskedDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_parallel_masked, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_parallel_masked, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9275,10 +9288,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPParallelSectionsDirective(
     OMPParallelSectionsDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_parallel_sections, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_parallel_sections, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9286,10 +9299,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPTaskDirective(OMPTaskDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_task, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_task, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9297,10 +9310,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPTaskyieldDirective(
     OMPTaskyieldDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_taskyield, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_taskyield, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9308,10 +9321,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPBarrierDirective(OMPBarrierDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_barrier, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_barrier, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9319,10 +9332,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPTaskwaitDirective(OMPTaskwaitDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_taskwait, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_taskwait, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9330,10 +9343,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPErrorDirective(OMPErrorDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_error, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_error, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9341,10 +9354,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPTaskgroupDirective(
     OMPTaskgroupDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_taskgroup, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_taskgroup, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9352,10 +9365,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPFlushDirective(OMPFlushDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_flush, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_flush, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9363,10 +9376,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPDepobjDirective(OMPDepobjDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_depobj, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_depobj, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9374,10 +9387,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPScanDirective(OMPScanDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_scan, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_scan, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9385,10 +9398,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPOrderedDirective(OMPOrderedDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_ordered, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_ordered, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9396,10 +9409,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPAtomicDirective(OMPAtomicDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_atomic, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_atomic, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9407,10 +9420,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPTargetDirective(OMPTargetDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_target, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_target, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9418,10 +9431,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPTargetDataDirective(
     OMPTargetDataDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_target_data, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_target_data, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9429,10 +9442,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPTargetEnterDataDirective(
     OMPTargetEnterDataDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_target_enter_data, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_target_enter_data, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9440,10 +9453,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPTargetExitDataDirective(
     OMPTargetExitDataDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_target_exit_data, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_target_exit_data, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9451,10 +9464,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPTargetParallelDirective(
     OMPTargetParallelDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_target_parallel, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_target_parallel, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9462,10 +9475,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPTargetParallelForDirective(
     OMPTargetParallelForDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_target_parallel_for, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_target_parallel_for, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9473,10 +9486,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPTargetUpdateDirective(
     OMPTargetUpdateDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_target_update, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_target_update, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9484,10 +9497,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPTeamsDirective(OMPTeamsDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_teams, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_teams, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9495,10 +9508,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPCancellationPointDirective(
     OMPCancellationPointDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_cancellation_point, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_cancellation_point, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9506,10 +9519,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPCancelDirective(OMPCancelDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_cancel, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_cancel, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9517,10 +9530,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPTaskLoopDirective(OMPTaskLoopDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_taskloop, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_taskloop, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9528,10 +9541,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPTaskLoopSimdDirective(
     OMPTaskLoopSimdDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_taskloop_simd, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_taskloop_simd, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9539,10 +9552,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPMasterTaskLoopDirective(
     OMPMasterTaskLoopDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_master_taskloop, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_master_taskloop, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9550,10 +9563,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPMaskedTaskLoopDirective(
     OMPMaskedTaskLoopDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_masked_taskloop, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_masked_taskloop, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9561,10 +9574,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPMasterTaskLoopSimdDirective(
     OMPMasterTaskLoopSimdDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_master_taskloop_simd, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_master_taskloop_simd, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9572,10 +9585,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPMaskedTaskLoopSimdDirective(
     OMPMaskedTaskLoopSimdDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_masked_taskloop_simd, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_masked_taskloop_simd, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9583,10 +9596,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPParallelMasterTaskLoopDirective(
     OMPParallelMasterTaskLoopDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
       OMPD_parallel_master_taskloop, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9594,10 +9607,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPParallelMaskedTaskLoopDirective(
     OMPParallelMaskedTaskLoopDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
       OMPD_parallel_masked_taskloop, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9606,10 +9619,10 @@ StmtResult
 TreeTransform<Derived>::TransformOMPParallelMasterTaskLoopSimdDirective(
     OMPParallelMasterTaskLoopSimdDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
       OMPD_parallel_master_taskloop_simd, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9618,10 +9631,10 @@ StmtResult
 TreeTransform<Derived>::TransformOMPParallelMaskedTaskLoopSimdDirective(
     OMPParallelMaskedTaskLoopSimdDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
       OMPD_parallel_masked_taskloop_simd, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9629,10 +9642,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPDistributeDirective(
     OMPDistributeDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_distribute, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_distribute, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9640,10 +9653,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPDistributeParallelForDirective(
     OMPDistributeParallelForDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
       OMPD_distribute_parallel_for, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9652,10 +9665,10 @@ StmtResult
 TreeTransform<Derived>::TransformOMPDistributeParallelForSimdDirective(
     OMPDistributeParallelForSimdDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
       OMPD_distribute_parallel_for_simd, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9663,10 +9676,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPDistributeSimdDirective(
     OMPDistributeSimdDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_distribute_simd, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_distribute_simd, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9674,10 +9687,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPTargetParallelForSimdDirective(
     OMPTargetParallelForSimdDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
       OMPD_target_parallel_for_simd, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9685,10 +9698,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPTargetSimdDirective(
     OMPTargetSimdDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_target_simd, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_target_simd, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9696,10 +9709,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPTeamsDistributeDirective(
     OMPTeamsDistributeDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_teams_distribute, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_teams_distribute, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9707,10 +9720,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPTeamsDistributeSimdDirective(
     OMPTeamsDistributeSimdDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
       OMPD_teams_distribute_simd, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9718,11 +9731,11 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPTeamsDistributeParallelForSimdDirective(
     OMPTeamsDistributeParallelForSimdDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
       OMPD_teams_distribute_parallel_for_simd, DirName, nullptr,
       D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9730,10 +9743,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPTeamsDistributeParallelForDirective(
     OMPTeamsDistributeParallelForDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
       OMPD_teams_distribute_parallel_for, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9741,10 +9754,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPTargetTeamsDirective(
     OMPTargetTeamsDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_target_teams, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_target_teams, DirName, nullptr, D->getBeginLoc());
   auto Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9752,10 +9765,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPTargetTeamsDistributeDirective(
     OMPTargetTeamsDistributeDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
       OMPD_target_teams_distribute, DirName, nullptr, D->getBeginLoc());
   auto Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9764,11 +9777,11 @@ StmtResult
 TreeTransform<Derived>::TransformOMPTargetTeamsDistributeParallelForDirective(
     OMPTargetTeamsDistributeParallelForDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
       OMPD_target_teams_distribute_parallel_for, DirName, nullptr,
       D->getBeginLoc());
   auto Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9777,11 +9790,11 @@ StmtResult TreeTransform<Derived>::
     TransformOMPTargetTeamsDistributeParallelForSimdDirective(
         OMPTargetTeamsDistributeParallelForSimdDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
       OMPD_target_teams_distribute_parallel_for_simd, DirName, nullptr,
       D->getBeginLoc());
   auto Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9790,10 +9803,10 @@ StmtResult
 TreeTransform<Derived>::TransformOMPTargetTeamsDistributeSimdDirective(
     OMPTargetTeamsDistributeSimdDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
       OMPD_target_teams_distribute_simd, DirName, nullptr, D->getBeginLoc());
   auto Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9801,10 +9814,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPInteropDirective(OMPInteropDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_interop, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_interop, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9812,10 +9825,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPDispatchDirective(OMPDispatchDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_dispatch, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_dispatch, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9823,10 +9836,10 @@ template <typename Derived>
 StmtResult
 TreeTransform<Derived>::TransformOMPMaskedDirective(OMPMaskedDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_masked, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_masked, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9834,10 +9847,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPGenericLoopDirective(
     OMPGenericLoopDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_loop, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_loop, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9845,10 +9858,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPTeamsGenericLoopDirective(
     OMPTeamsGenericLoopDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_teams_loop, DirName, nullptr,
-                                             D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_teams_loop, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9856,10 +9869,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPTargetTeamsGenericLoopDirective(
     OMPTargetTeamsGenericLoopDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_target_teams_loop, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_target_teams_loop, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9867,10 +9880,10 @@ template <typename Derived>
 StmtResult TreeTransform<Derived>::TransformOMPParallelGenericLoopDirective(
     OMPParallelGenericLoopDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_parallel_loop, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_parallel_loop, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -9879,10 +9892,10 @@ StmtResult
 TreeTransform<Derived>::TransformOMPTargetParallelGenericLoopDirective(
     OMPTargetParallelGenericLoopDirective *D) {
   DeclarationNameInfo DirName;
-  getDerived().getSema().StartOpenMPDSABlock(OMPD_target_parallel_loop, DirName,
-                                             nullptr, D->getBeginLoc());
+  getDerived().getSema().OpenMP().StartOpenMPDSABlock(
+      OMPD_target_parallel_loop, DirName, nullptr, D->getBeginLoc());
   StmtResult Res = getDerived().TransformOMPExecutableDirective(D);
-  getDerived().getSema().EndOpenMPDSABlock(Res.get());
+  getDerived().getSema().OpenMP().EndOpenMPDSABlock(Res.get());
   return Res;
 }
 
@@ -10972,7 +10985,7 @@ TreeTransform<Derived>::TransformOMPExclusiveClause(OMPExclusiveClause *C) {
 template <typename Derived>
 OMPClause *TreeTransform<Derived>::TransformOMPUsesAllocatorsClause(
     OMPUsesAllocatorsClause *C) {
-  SmallVector<Sema::UsesAllocatorsData, 16> Data;
+  SmallVector<SemaOpenMP::UsesAllocatorsData, 16> Data;
   Data.reserve(C->getNumberOfAllocators());
   for (unsigned I = 0, E = C->getNumberOfAllocators(); I < E; ++I) {
     OMPUsesAllocatorsClause::Data D = C->getAllocatorData(I);
@@ -10985,7 +10998,7 @@ OMPClause *TreeTransform<Derived>::TransformOMPUsesAllocatorsClause(
       if (AllocatorTraits.isInvalid())
         continue;
     }
-    Sema::UsesAllocatorsData &NewD = Data.emplace_back();
+    SemaOpenMP::UsesAllocatorsData &NewD = Data.emplace_back();
     NewD.Allocator = Allocator.get();
     NewD.AllocatorTraits = AllocatorTraits.get();
     NewD.LParenLoc = D.LParenLoc;
@@ -11667,7 +11680,7 @@ template <typename Derived>
 ExprResult
 TreeTransform<Derived>::TransformOMPIteratorExpr(OMPIteratorExpr *E) {
   unsigned NumIterators = E->numOfIterators();
-  SmallVector<Sema::OMPIteratorData, 4> Data(NumIterators);
+  SmallVector<SemaOpenMP::OMPIteratorData, 4> Data(NumIterators);
 
   bool ErrorFound = false;
   bool NeedToRebuild = getDerived().AlwaysRebuild();
@@ -11802,7 +11815,8 @@ TreeTransform<Derived>::TransformMemberExpr(MemberExpr *E) {
     // Skip for member expression of (this->f), rebuilt thisi->f is needed
     // for Openmp where the field need to be privatizized in the case.
     if (!(isa<CXXThisExpr>(E->getBase()) &&
-          getSema().isOpenMPRebuildMemberExpr(cast<ValueDecl>(Member)))) {
+          getSema().OpenMP().isOpenMPRebuildMemberExpr(
+              cast<ValueDecl>(Member)))) {
       // Mark it referenced in the new context regardless.
       // FIXME: this is a bit instantiation-specific.
       SemaRef.MarkMemberReferenced(E);
-- 
cgit v1.1


From 9e7aab951ffba0211193ceb435c6b49e4e19ac24 Mon Sep 17 00:00:00 2001
From: Joseph Huber <huberjn@outlook.com>
Date: Tue, 16 Apr 2024 07:43:13 -0500
Subject: [CUDA] Rename SM_32 to SM_32_ to work around AIX headers (#88779)

Summary:
AIX headers define this, so we need to work around it. In the future
this will be removed but for now we should just rename it to avoid these
issues.
---
 clang/include/clang/Basic/Cuda.h         | 8 +++-----
 clang/lib/Basic/Cuda.cpp                 | 6 +++---
 clang/lib/Basic/Targets/NVPTX.cpp        | 2 +-
 clang/lib/CodeGen/CGOpenMPRuntimeGPU.cpp | 2 +-
 4 files changed, 8 insertions(+), 10 deletions(-)

(limited to 'clang')

diff --git a/clang/include/clang/Basic/Cuda.h b/clang/include/clang/Basic/Cuda.h
index 38f3054..ba0e446 100644
--- a/clang/include/clang/Basic/Cuda.h
+++ b/clang/include/clang/Basic/Cuda.h
@@ -50,17 +50,15 @@ const char *CudaVersionToString(CudaVersion V);
 // Input is "Major.Minor"
 CudaVersion CudaStringToVersion(const llvm::Twine &S);
 
-// We have a name conflict with sys/mac.h on AIX
-#ifdef SM_32
-#undef SM_32
-#endif
 enum class CudaArch {
   UNUSED,
   UNKNOWN,
+  // TODO: Deprecate and remove GPU architectures older than sm_52.
   SM_20,
   SM_21,
   SM_30,
-  SM_32,
+  // This has a name conflict with sys/mac.h on AIX, rename it as a workaround.
+  SM_32_,
   SM_35,
   SM_37,
   SM_50,
diff --git a/clang/lib/Basic/Cuda.cpp b/clang/lib/Basic/Cuda.cpp
index 1b1da6a..113483d 100644
--- a/clang/lib/Basic/Cuda.cpp
+++ b/clang/lib/Basic/Cuda.cpp
@@ -86,7 +86,7 @@ static const CudaArchToStringMap arch_names[] = {
     // clang-format off
     {CudaArch::UNUSED, "", ""},
     SM2(20, "compute_20"), SM2(21, "compute_20"), // Fermi
-    SM(30), SM(32), SM(35), SM(37),  // Kepler
+    SM(30), {CudaArch::SM_32_, "sm_32", "compute_32"}, SM(35), SM(37),  // Kepler
     SM(50), SM(52), SM(53),          // Maxwell
     SM(60), SM(61), SM(62),          // Pascal
     SM(70), SM(72),                  // Volta
@@ -186,7 +186,7 @@ CudaVersion MinVersionForCudaArch(CudaArch A) {
   case CudaArch::SM_20:
   case CudaArch::SM_21:
   case CudaArch::SM_30:
-  case CudaArch::SM_32:
+  case CudaArch::SM_32_:
   case CudaArch::SM_35:
   case CudaArch::SM_37:
   case CudaArch::SM_50:
@@ -231,7 +231,7 @@ CudaVersion MaxVersionForCudaArch(CudaArch A) {
   case CudaArch::SM_21:
     return CudaVersion::CUDA_80;
   case CudaArch::SM_30:
-  case CudaArch::SM_32:
+  case CudaArch::SM_32_:
     return CudaVersion::CUDA_102;
   case CudaArch::SM_35:
   case CudaArch::SM_37:
diff --git a/clang/lib/Basic/Targets/NVPTX.cpp b/clang/lib/Basic/Targets/NVPTX.cpp
index b47c399..8ad9e6e 100644
--- a/clang/lib/Basic/Targets/NVPTX.cpp
+++ b/clang/lib/Basic/Targets/NVPTX.cpp
@@ -239,7 +239,7 @@ void NVPTXTargetInfo::getTargetDefines(const LangOptions &Opts,
         return "210";
       case CudaArch::SM_30:
         return "300";
-      case CudaArch::SM_32:
+      case CudaArch::SM_32_:
         return "320";
       case CudaArch::SM_35:
         return "350";
diff --git a/clang/lib/CodeGen/CGOpenMPRuntimeGPU.cpp b/clang/lib/CodeGen/CGOpenMPRuntimeGPU.cpp
index 59ba03c..eb71652 100644
--- a/clang/lib/CodeGen/CGOpenMPRuntimeGPU.cpp
+++ b/clang/lib/CodeGen/CGOpenMPRuntimeGPU.cpp
@@ -3466,7 +3466,7 @@ void CGOpenMPRuntimeGPU::processRequiresDirective(
       case CudaArch::SM_20:
       case CudaArch::SM_21:
       case CudaArch::SM_30:
-      case CudaArch::SM_32:
+      case CudaArch::SM_32_:
       case CudaArch::SM_35:
       case CudaArch::SM_37:
       case CudaArch::SM_50:
-- 
cgit v1.1


From e7fb49c24e4be4780ee4df9829980c5e8ddd511e Mon Sep 17 00:00:00 2001
From: Aaron Ballman <aaron@aaronballman.com>
Date: Tue, 16 Apr 2024 09:00:57 -0400
Subject: Switch release notes links to using markup for github issues; NFC

---
 clang/docs/ReleaseNotes.rst | 43 +++++++++++++++----------------------------
 1 file changed, 15 insertions(+), 28 deletions(-)

(limited to 'clang')

diff --git a/clang/docs/ReleaseNotes.rst b/clang/docs/ReleaseNotes.rst
index 255d2cc0..db90db6 100644
--- a/clang/docs/ReleaseNotes.rst
+++ b/clang/docs/ReleaseNotes.rst
@@ -104,8 +104,7 @@ C++20 Feature Support
 
 - Clang now implements [module.import]p7 fully. Clang now will import module
   units transitively for the module units coming from the same module of the
-  current module units.
-  Fixes `#84002 <https://github.com/llvm/llvm-project/issues/84002>`_.
+  current module units. Fixes #GH84002
 
 - Initial support for class template argument deduction (CTAD) for type alias
   templates (`P1814R0 <https://wg21.link/p1814r0>`_).
@@ -135,8 +134,7 @@ C++2c Feature Support
 Resolutions to C++ Defect Reports
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 - Substitute template parameter pack, when it is not explicitly specified
-  in the template parameters, but is deduced from a previous argument.
-  (`#78449: <https://github.com/llvm/llvm-project/issues/78449>`_).
+  in the template parameters, but is deduced from a previous argument. (#GH78449)
 
 - Type qualifications are now ignored when evaluating layout compatibility
   of two types.
@@ -176,8 +174,7 @@ C23 Feature Support
 
 - Clang now generates predefined macros of the form ``__TYPE_FMTB__`` and
   ``__TYPE_FMTb__`` (e.g., ``__UINT_FAST64_FMTB__``) in C23 mode for use with
-  macros typically exposed from ``<inttypes.h>``, such as ``PRIb8``.
-  (`#81896: <https://github.com/llvm/llvm-project/issues/81896>`_).
+  macros typically exposed from ``<inttypes.h>``, such as ``PRIb8``. (#GH81896)
 
 - Clang now supports `N3018 The constexpr specifier for object definitions`
   <https://www.open-std.org/jtc1/sc22/wg14/www/docs/n3018.htm>`_.
@@ -215,7 +212,7 @@ New Compiler Flags
 
 - ``-Wmissing-designated-field-initializers``, grouped under ``-Wmissing-field-initializers``.
   This diagnostic can be disabled to make ``-Wmissing-field-initializers`` behave
-  like it did before Clang 18.x. Fixes (`#56628 <https://github.com/llvm/llvm-project/issues/68933>`_)
+  like it did before Clang 18.x. Fixes #GH56628
 
 Deprecated Compiler Flags
 -------------------------
@@ -254,8 +251,7 @@ Removed Compiler Flags
 
 - The ``-freroll-loops`` flag has been removed. It had no effect since Clang 13.
 - ``-m[no-]unaligned-access`` is removed for RISC-V and LoongArch.
-  ``-m[no-]strict-align``, also supported by GCC, should be used instead.
-  (`#85350 <https://github.com/llvm/llvm-project/pull/85350>`_.)
+  ``-m[no-]strict-align``, also supported by GCC, should be used instead. (#GH85350)
 
 Attribute Changes in Clang
 --------------------------
@@ -325,8 +321,7 @@ Improvements to Clang's diagnostics
   Fixes #GH82512.
 
 - Clang now provides improved warnings for the ``cleanup`` attribute to detect misuse scenarios,
-  such as attempting to call ``free`` on an unallocated object. Fixes
-  `#79443 <https://github.com/llvm/llvm-project/issues/79443>`_.
+  such as attempting to call ``free`` on an unallocated object. Fixes #GH79443.
 
 - Clang no longer warns when the ``bitand`` operator is used with boolean
   operands, distinguishing it from potential typographical errors or unintended
@@ -372,11 +367,10 @@ Improvements to Clang's time-trace
 Bug Fixes in This Version
 -------------------------
 - Clang's ``-Wundefined-func-template`` no longer warns on pure virtual
-  functions.
-  (`#74016 <https://github.com/llvm/llvm-project/issues/74016>`_)
+  functions. (#GH74016)
 
 - Fixed missing warnings when comparing mismatched enumeration constants
-  in C (`#29217 <https://github.com/llvm/llvm-project/issues/29217>`).
+  in C (#GH29217)
 
 - Clang now accepts elaborated-type-specifiers that explicitly specialize
   a member class template for an implicit instantiation of a class template.
@@ -415,7 +409,7 @@ Bug Fixes in This Version
   type only rather than to the complex type (e.g. ``_Complex float / int`` is now evaluated
   as ``_Complex float / float`` rather than ``_Complex float / _Complex float``), as mandated
   by the C standard. This significantly improves codegen of `*` and `/` especially.
-  Fixes (`#31205 <https://github.com/llvm/llvm-project/issues/31205>`_).
+  Fixes #GH31205.
 
 - Fixes an assertion failure on invalid code when trying to define member
   functions in lambdas.
@@ -464,8 +458,7 @@ Bug Fixes to C++ Support
 - Fix a crash when trying to call a varargs function that also has an explicit object parameter. (#GH80971)
 - Fixed a bug where abbreviated function templates would append their invented template parameters to
   an empty template parameter lists.
-- Fix parsing of abominable function types inside type traits.
-  Fixes (`#77585 <https://github.com/llvm/llvm-project/issues/77585>`_)
+- Fix parsing of abominable function types inside type traits. Fixes #GH77585
 - Clang now classifies aggregate initialization in C++17 and newer as constant
   or non-constant more accurately. Previously, only a subset of the initializer
   elements were considered, misclassifying some initializers as constant. Partially fixes
@@ -506,9 +499,7 @@ Bug Fixes to C++ Support
 - Fix a bug where overload resolution falsely reported an ambiguity when it was comparing
   a member-function against a non member function or a member-function with an
   explicit object parameter against a member function with no explicit object parameter
-  when one of the function had more specialized templates.
-  Fixes (`#82509 <https://github.com/llvm/llvm-project/issues/82509>`_)
-  and (`#74494 <https://github.com/llvm/llvm-project/issues/74494>`_)
+  when one of the function had more specialized templates. Fixes #GH82509 and #GH74494
 - Clang now supports direct lambda calls inside of a type alias template declarations.
   This addresses (#GH70601), (#GH76674), (#GH79555), (#GH81145) and (#GH82104).
 - Allow access to a public template alias declaration that refers to friend's
@@ -530,8 +521,7 @@ Bug Fixes to C++ Support
 - Fixed a bug that prevented member function templates of class templates declared with a deduced return type
   from being explicitly specialized for a given implicit instantiation of the class template.
 
-- Fix crash when inheriting from a cv-qualified type. Fixes:
-  (`#35603 <https://github.com/llvm/llvm-project/issues/35603>`_)
+- Fix crash when inheriting from a cv-qualified type. Fixes #GH35603
 - Fix a crash when the using enum declaration uses an anonymous enumeration. Fixes (#GH86790).
 - Handled an edge case in ``getFullyPackExpandedSize`` so that we now avoid a false-positive diagnostic. (#GH84220)
 - Clang now correctly tracks type dependence of by-value captures in lambdas with an explicit
@@ -539,8 +529,7 @@ Bug Fixes to C++ Support
   Fixes (#GH70604), (#GH79754), (#GH84163), (#GH84425), (#GH86054), (#GH86398), and (#GH86399).
 - Fix a crash when deducing ``auto`` from an invalid dereference (#GH88329).
 - Fix a crash in requires expression with templated base class member function. Fixes (#GH84020).
-- placement new initializes typedef array with correct size
-  (`#GH41441 <https://github.com/llvm/llvm-project/issues/41441>`_)
+- Placement new initializes typedef array with correct size (#GH41441)
 
 Bug Fixes to AST Handling
 ^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -554,8 +543,7 @@ Miscellaneous Clang Crashes Fixed
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 - Do not attempt to dump the layout of dependent types or invalid declarations
-  when ``-fdump-record-layouts-complete`` is passed.
-  Fixes (`#83684 <https://github.com/llvm/llvm-project/issues/83684>`_).
+  when ``-fdump-record-layouts-complete`` is passed. Fixes #GH83684.
 
 OpenACC Specific Changes
 ------------------------
@@ -605,8 +593,7 @@ Windows Support
   would only be included if AVX was enabled at compile time. This was done to work
   around include times from MSVC STL including ``intrin.h`` under clang-cl.
   Clang-cl now provides ``intrin0.h`` for MSVC STL and therefore all intrinsic
-  features without requiring enablement at compile time.
-  Fixes: (`#53520 <https://github.com/llvm/llvm-project/issues/53520>`_)
+  features without requiring enablement at compile time. Fixes #GH53520
 
 - Improved compile times with MSVC STL. MSVC provides ``intrin0.h`` which is a
   header that only includes intrinsics that are used by MSVC STL to avoid the
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