Index: include/llvm-c/Core.h =================================================================== --- include/llvm-c/Core.h +++ include/llvm-c/Core.h @@ -476,6 +476,9 @@ unsigned SLen); unsigned LLVMGetMDKindID(const char *Name, unsigned SLen); +unsigned LLVMGetAttrKindIDInContext(LLVMContextRef C, const char *Name, + size_t SLen); + /** * @} */ Index: lib/IR/Core.cpp =================================================================== --- lib/IR/Core.cpp +++ lib/IR/Core.cpp @@ -13,6 +13,8 @@ //===----------------------------------------------------------------------===// #include "llvm-c/Core.h" +#include "llvm/ADT/StringSwitch.h" +#include "AttributeImpl.h" #include "llvm/Bitcode/ReaderWriter.h" #include "llvm/IR/Attributes.h" #include "llvm/IR/CallSite.h" @@ -119,6 +121,16 @@ return LLVMGetMDKindIDInContext(LLVMGetGlobalContext(), Name, SLen); } +#define GET_ATTR_KIND_FROM_NAME +#include "AttributesCompatFunc.inc" + +unsigned LLVMGetAttrKindIDInContext(LLVMContextRef C, const char *Name, + size_t SLen) { + auto K = getAttrKindFromName(StringRef(Name, SLen)); + assert(K != Attribute::None && "Invalid attribute"); + return AttributeImpl::getAttrMask(K); +} + char *LLVMGetDiagInfoDescription(LLVMDiagnosticInfoRef DI) { std::string MsgStorage; raw_string_ostream Stream(MsgStorage); Index: utils/TableGen/Attributes.cpp =================================================================== --- utils/TableGen/Attributes.cpp +++ utils/TableGen/Attributes.cpp @@ -27,6 +27,7 @@ private: void emitTargetIndependentEnums(raw_ostream &OS); + void emitConversionFn(raw_ostream &OS); void emitFnAttrCompatCheck(raw_ostream &OS, bool IsStringAttr); void printEnumAttrClasses(raw_ostream &OS, @@ -52,6 +53,27 @@ OS << "#endif\n"; } +void Attributes::emitConversionFn(raw_ostream &OS) { + OS << "#ifdef GET_ATTR_KIND_FROM_NAME\n"; + OS << "#undef GET_ATTR_KIND_FROM_NAME\n"; + + std::vector Attrs = + Records.getAllDerivedDefinitions("EnumAttr"); + + OS << "static Attribute::AttrKind getAttrKindFromName(StringRef AttrName) {\n"; + OS << " return StringSwitch(AttrName)\n"; + + for (auto A : Attrs) { + OS << " .Case(\"" << A->getValueAsString("AttrString"); + OS << "\", Attribute::" << A->getName() << ")\n"; + } + + OS << " .Default(Attribute::None);\n"; + OS << "}\n\n"; + + OS << "#endif\n"; +} + void Attributes::emitFnAttrCompatCheck(raw_ostream &OS, bool IsStringAttr) { OS << "#ifdef GET_ATTR_COMPAT_FUNC\n"; OS << "#undef GET_ATTR_COMPAT_FUNC\n"; @@ -144,6 +166,7 @@ void Attributes::emit(raw_ostream &OS) { emitTargetIndependentEnums(OS); + emitConversionFn(OS); emitFnAttrCompatCheck(OS, false); }