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-rw-r--r--clang/lib/Basic/Builtins.cpp120
1 files changed, 81 insertions, 39 deletions
diff --git a/clang/lib/Basic/Builtins.cpp b/clang/lib/Basic/Builtins.cpp
index 25a6015..c991139 100644
--- a/clang/lib/Basic/Builtins.cpp
+++ b/clang/lib/Basic/Builtins.cpp
@@ -29,54 +29,93 @@ const char *HeaderDesc::getName() const {
llvm_unreachable("Unknown HeaderDesc::HeaderID enum");
}
-static constexpr Builtin::Info BuiltinInfo[] = {
- {"not a builtin function", nullptr, nullptr, nullptr, HeaderDesc::NO_HEADER,
- ALL_LANGUAGES},
-#define BUILTIN(ID, TYPE, ATTRS) \
- {#ID, TYPE, ATTRS, nullptr, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
-#define LANGBUILTIN(ID, TYPE, ATTRS, LANGS) \
- {#ID, TYPE, ATTRS, nullptr, HeaderDesc::NO_HEADER, LANGS},
-#define LIBBUILTIN(ID, TYPE, ATTRS, HEADER, LANGS) \
- {#ID, TYPE, ATTRS, nullptr, HeaderDesc::HEADER, LANGS},
+static constexpr auto BuiltinStorage =
+ Builtin::Storage<Builtin::FirstTSBuiltin>::Make(
+ CLANG_BUILTIN_STR_TABLE("not a builtin function", "", "")
+#define BUILTIN CLANG_BUILTIN_STR_TABLE
#include "clang/Basic/Builtins.inc"
-};
+ ,
+ {CLANG_BUILTIN_ENTRY("not a builtin function", "", "")
+#define BUILTIN CLANG_BUILTIN_ENTRY
+#define LANGBUILTIN CLANG_LANGBUILTIN_ENTRY
+#define LIBBUILTIN CLANG_LIBBUILTIN_ENTRY
+#include "clang/Basic/Builtins.inc"
+ });
-const Builtin::Info &Builtin::Context::getRecord(unsigned ID) const {
+std::pair<const char *, const Builtin::Info &>
+Builtin::Context::getStrTableAndInfo(unsigned ID) const {
if (ID < Builtin::FirstTSBuiltin)
- return BuiltinInfo[ID];
- assert(((ID - Builtin::FirstTSBuiltin) <
- (TSRecords.size() + AuxTSRecords.size())) &&
- "Invalid builtin ID!");
+ return {BuiltinStorage.StringTable, BuiltinStorage.Infos[ID]};
+ assert(
+ ((ID - Builtin::FirstTSBuiltin) < (TSInfos.size() + AuxTSInfos.size())) &&
+ "Invalid builtin ID!");
if (isAuxBuiltinID(ID))
- return AuxTSRecords[getAuxBuiltinID(ID) - Builtin::FirstTSBuiltin];
- return TSRecords[ID - Builtin::FirstTSBuiltin];
+ return {AuxTSStrTable,
+ AuxTSInfos[getAuxBuiltinID(ID) - Builtin::FirstTSBuiltin]};
+ return {TSStrTable, TSInfos[ID - Builtin::FirstTSBuiltin]};
+}
+
+static llvm::StringRef getStrFromTable(const char *StrTable, int Offset) {
+ return &StrTable[Offset];
+}
+
+/// Return the identifier name for the specified builtin,
+/// e.g. "__builtin_abs".
+llvm::StringRef Builtin::Context::getName(unsigned ID) const {
+ const auto &[StrTable, I] = getStrTableAndInfo(ID);
+ return getStrFromTable(StrTable, I.Offsets.Name);
+}
+
+const char *Builtin::Context::getTypeString(unsigned ID) const {
+ const auto &[StrTable, I] = getStrTableAndInfo(ID);
+ return getStrFromTable(StrTable, I.Offsets.Type).data();
+}
+
+const char *Builtin::Context::getAttributesString(unsigned ID) const {
+ const auto &[StrTable, I] = getStrTableAndInfo(ID);
+ return getStrFromTable(StrTable, I.Offsets.Attributes).data();
+}
+
+const char *Builtin::Context::getRequiredFeatures(unsigned ID) const {
+ const auto &[StrTable, I] = getStrTableAndInfo(ID);
+ return getStrFromTable(StrTable, I.Offsets.Features).data();
}
void Builtin::Context::InitializeTarget(const TargetInfo &Target,
const TargetInfo *AuxTarget) {
- assert(TSRecords.empty() && "Already initialized target?");
- TSRecords = Target.getTargetBuiltins();
- if (AuxTarget)
- AuxTSRecords = AuxTarget->getTargetBuiltins();
+ assert(TSStrTable == nullptr && "Already initialized target?");
+ assert(TSInfos.empty() && "Already initialized target?");
+ std::tie(TSStrTable, TSInfos) = Target.getTargetBuiltinStorage();
+ if (AuxTarget) {
+ std::tie(AuxTSStrTable, AuxTSInfos) = AuxTarget->getTargetBuiltinStorage();
+ }
}
bool Builtin::Context::isBuiltinFunc(llvm::StringRef FuncName) {
bool InStdNamespace = FuncName.consume_front("std-");
+ const char *StrTable = BuiltinStorage.StringTable;
for (unsigned i = Builtin::NotBuiltin + 1; i != Builtin::FirstTSBuiltin;
++i) {
- if (FuncName == BuiltinInfo[i].Name &&
- (bool)strchr(BuiltinInfo[i].Attributes, 'z') == InStdNamespace)
- return strchr(BuiltinInfo[i].Attributes, 'f') != nullptr;
+ const auto &I = BuiltinStorage.Infos[i];
+ if (FuncName == getStrFromTable(StrTable, I.Offsets.Name) &&
+ (bool)strchr(getStrFromTable(StrTable, I.Offsets.Attributes).data(),
+ 'z') == InStdNamespace)
+ return strchr(getStrFromTable(StrTable, I.Offsets.Attributes).data(),
+ 'f') != nullptr;
}
return false;
}
/// Is this builtin supported according to the given language options?
-static bool builtinIsSupported(const Builtin::Info &BuiltinInfo,
+static bool builtinIsSupported(const char *StrTable,
+ const Builtin::Info &BuiltinInfo,
const LangOptions &LangOpts) {
+ auto AttributesStr =
+ getStrFromTable(StrTable, BuiltinInfo.Offsets.Attributes);
+
/* Builtins Unsupported */
- if (LangOpts.NoBuiltin && strchr(BuiltinInfo.Attributes, 'f') != nullptr)
+ if (LangOpts.NoBuiltin && strchr(AttributesStr.data(), 'f') != nullptr)
return false;
/* CorBuiltins Unsupported */
if (!LangOpts.Coroutines && (BuiltinInfo.Langs & COR_LANG))
@@ -123,7 +162,7 @@ static bool builtinIsSupported(const Builtin::Info &BuiltinInfo,
if (!LangOpts.CPlusPlus && BuiltinInfo.Langs == CXX_LANG)
return false;
/* consteval Unsupported */
- if (!LangOpts.CPlusPlus20 && strchr(BuiltinInfo.Attributes, 'G') != nullptr)
+ if (!LangOpts.CPlusPlus20 && strchr(AttributesStr.data(), 'G') != nullptr)
return false;
return true;
}
@@ -134,20 +173,23 @@ static bool builtinIsSupported(const Builtin::Info &BuiltinInfo,
void Builtin::Context::initializeBuiltins(IdentifierTable &Table,
const LangOptions& LangOpts) {
// Step #1: mark all target-independent builtins with their ID's.
- for (unsigned i = Builtin::NotBuiltin+1; i != Builtin::FirstTSBuiltin; ++i)
- if (builtinIsSupported(BuiltinInfo[i], LangOpts)) {
- Table.get(BuiltinInfo[i].Name).setBuiltinID(i);
+ for (const auto &&[Index, I] :
+ llvm::enumerate(llvm::ArrayRef(BuiltinStorage.Infos).drop_front()))
+ if (builtinIsSupported(BuiltinStorage.StringTable, I, LangOpts)) {
+ Table.get(getStrFromTable(BuiltinStorage.StringTable, I.Offsets.Name))
+ .setBuiltinID(Index + 1);
}
// Step #2: Register target-specific builtins.
- for (unsigned i = 0, e = TSRecords.size(); i != e; ++i)
- if (builtinIsSupported(TSRecords[i], LangOpts))
- Table.get(TSRecords[i].Name).setBuiltinID(i + Builtin::FirstTSBuiltin);
+ for (const auto &&[Index, I] : llvm::enumerate(TSInfos))
+ if (builtinIsSupported(TSStrTable, I, LangOpts))
+ Table.get(getStrFromTable(TSStrTable, I.Offsets.Name))
+ .setBuiltinID(Index + Builtin::FirstTSBuiltin);
// Step #3: Register target-specific builtins for AuxTarget.
- for (unsigned i = 0, e = AuxTSRecords.size(); i != e; ++i)
- Table.get(AuxTSRecords[i].Name)
- .setBuiltinID(i + Builtin::FirstTSBuiltin + TSRecords.size());
+ for (const auto &&[Index, I] : llvm::enumerate(AuxTSInfos))
+ Table.get(getStrFromTable(AuxTSStrTable, I.Offsets.Name))
+ .setBuiltinID(Index + Builtin::FirstTSBuiltin + TSInfos.size());
// Step #4: Unregister any builtins specified by -fno-builtin-foo.
for (llvm::StringRef Name : LangOpts.NoBuiltinFuncs) {
@@ -164,7 +206,7 @@ void Builtin::Context::initializeBuiltins(IdentifierTable &Table,
}
unsigned Builtin::Context::getRequiredVectorWidth(unsigned ID) const {
- const char *WidthPos = ::strchr(getRecord(ID).Attributes, 'V');
+ const char *WidthPos = ::strchr(getAttributesString(ID), 'V');
if (!WidthPos)
return 0;
@@ -187,7 +229,7 @@ bool Builtin::Context::isLike(unsigned ID, unsigned &FormatIdx,
assert(::toupper(Fmt[0]) == Fmt[1] &&
"Format string is not in the form \"xX\"");
- const char *Like = ::strpbrk(getRecord(ID).Attributes, Fmt);
+ const char *Like = ::strpbrk(getAttributesString(ID), Fmt);
if (!Like)
return false;
@@ -214,7 +256,7 @@ bool Builtin::Context::isScanfLike(unsigned ID, unsigned &FormatIdx,
bool Builtin::Context::performsCallback(unsigned ID,
SmallVectorImpl<int> &Encoding) const {
- const char *CalleePos = ::strchr(getRecord(ID).Attributes, 'C');
+ const char *CalleePos = ::strchr(getAttributesString(ID), 'C');
if (!CalleePos)
return false;
generated by cgit v1.1 at 2025-07-29 02:58:15 +0000