4 files changed, 20 insertions, 6 deletions
diff --git a/llvm/lib/Target/ARM/ARMISelLowering.cpp b/llvm/lib/Target/ARM/ARMISelLowering.cpp
index a4d3d62..6b06534 100644
--- a/llvm/lib/Target/ARM/ARMISelLowering.cpp
+++ b/llvm/lib/Target/ARM/ARMISelLowering.cpp
@@ -22109,6 +22109,11 @@ bool ARMTargetLowering::isComplexDeinterleavingOperationSupported(
           ScalarTy->isIntegerTy(32));
 }
 
+ArrayRef<MCPhysReg> ARMTargetLowering::getRoundingControlRegisters() const {
+  static const MCPhysReg RCRegs[] = {ARM::FPSCR_RM};
+  return RCRegs;
+}
+
 Value *ARMTargetLowering::createComplexDeinterleavingIR(
     IRBuilderBase &B, ComplexDeinterleavingOperation OperationType,
     ComplexDeinterleavingRotation Rotation, Value *InputA, Value *InputB,
diff --git a/llvm/lib/Target/ARM/ARMISelLowering.h b/llvm/lib/Target/ARM/ARMISelLowering.h
index 357d2c5..bf3438b 100644
--- a/llvm/lib/Target/ARM/ARMISelLowering.h
+++ b/llvm/lib/Target/ARM/ARMISelLowering.h
@@ -1009,6 +1009,8 @@ class VectorType;
 
     bool isUnsupportedFloatingType(EVT VT) const;
 
+    ArrayRef<MCPhysReg> getRoundingControlRegisters() const override;
+
     SDValue getCMOV(const SDLoc &dl, EVT VT, SDValue FalseVal, SDValue TrueVal,
                     SDValue ARMcc, SDValue Flags, SelectionDAG &DAG) const;
     SDValue getARMCmp(SDValue LHS, SDValue RHS, ISD::CondCode CC,
diff --git a/llvm/lib/Target/ARM/ARMSelectionDAGInfo.cpp b/llvm/lib/Target/ARM/ARMSelectionDAGInfo.cpp
index ebfa593..bf7c962f 100644
--- a/llvm/lib/Target/ARM/ARMSelectionDAGInfo.cpp
+++ b/llvm/lib/Target/ARM/ARMSelectionDAGInfo.cpp
@@ -47,9 +47,7 @@ SDValue ARMSelectionDAGInfo::EmitSpecializedLibcall(
 
   // Only use a specialized AEABI function if the default version of this
   // Libcall is an AEABI function.
-  if (std::strncmp(TLI->getLibcallName(LC), "__aeabi", 7) != 0)
-    return SDValue();
-
+  //
   // Translate RTLIB::Libcall to AEABILibcall. We only do this in order to be
   // able to translate memset to memclr and use the value to index the function
   // name array.
@@ -61,12 +59,21 @@ SDValue ARMSelectionDAGInfo::EmitSpecializedLibcall(
   } AEABILibcall;
   switch (LC) {
   case RTLIB::MEMCPY:
+    if (TLI->getLibcallImpl(LC) != RTLIB::impl___aeabi_memcpy)
+      return SDValue();
+
     AEABILibcall = AEABI_MEMCPY;
     break;
   case RTLIB::MEMMOVE:
+    if (TLI->getLibcallImpl(LC) != RTLIB::impl___aeabi_memmove)
+      return SDValue();
+
     AEABILibcall = AEABI_MEMMOVE;
     break;
   case RTLIB::MEMSET:
+    if (TLI->getLibcallImpl(LC) != RTLIB::impl___aeabi_memset)
+      return SDValue();
+
     AEABILibcall = AEABI_MEMSET;
     if (isNullConstant(Src))
       AEABILibcall = AEABI_MEMCLR;
diff --git a/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp b/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
index f60660b..1bb670d 100644
--- a/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
+++ b/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
@@ -426,15 +426,15 @@ class ARMAsmParser : public MCTargetAsmParser {
       VPTState.CurPosition = ~0U;
   }
 
-  void Note(SMLoc L, const Twine &Msg, SMRange Range = std::nullopt) {
+  void Note(SMLoc L, const Twine &Msg, SMRange Range = {}) {
     return getParser().Note(L, Msg, Range);
   }
 
-  bool Warning(SMLoc L, const Twine &Msg, SMRange Range = std::nullopt) {
+  bool Warning(SMLoc L, const Twine &Msg, SMRange Range = {}) {
     return getParser().Warning(L, Msg, Range);
   }
 
-  bool Error(SMLoc L, const Twine &Msg, SMRange Range = std::nullopt) {
+  bool Error(SMLoc L, const Twine &Msg, SMRange Range = {}) {
     return getParser().Error(L, Msg, Range);
   }