From caf8ffd8e3fb49fd5a5a8a5c907d258277c2b69d Mon Sep 17 00:00:00 2001 From: Joerg Sonnenberger Date: Fri, 13 May 2011 21:12:10 +0000 Subject: Bug 8765: Honor assembler labels for builtins. Ensure that the label is mangled to avoid doing it twice for platforms that use prefixes like Darwin. llvm-svn: 131311 --- clang/lib/CodeGen/CodeGenModule.cpp | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) (limited to 'clang/lib/CodeGen/CodeGenModule.cpp') diff --git a/clang/lib/CodeGen/CodeGenModule.cpp b/clang/lib/CodeGen/CodeGenModule.cpp index e4b3210..7cee6b4 100644 --- a/clang/lib/CodeGen/CodeGenModule.cpp +++ b/clang/lib/CodeGen/CodeGenModule.cpp @@ -1574,14 +1574,24 @@ llvm::Value *CodeGenModule::getBuiltinLibFunction(const FunctionDecl *FD, "isn't a lib fn"); // Get the name, skip over the __builtin_ prefix (if necessary). - const char *Name = Context.BuiltinInfo.GetName(BuiltinID); - if (Context.BuiltinInfo.isLibFunction(BuiltinID)) - Name += 10; + llvm::StringRef Name; + GlobalDecl D(FD); + + // If the builtin has been declared explicitly with an assembler label, + // use the mangled name. This differs from the plain label on platforms + // that prefix labels. + if (const AsmLabelAttr *ALA = FD->getAttr()) + Name = getMangledName(D); + else if (Context.BuiltinInfo.isLibFunction(BuiltinID)) + Name = Context.BuiltinInfo.GetName(BuiltinID) + 10; + else + Name = Context.BuiltinInfo.GetName(BuiltinID); + const llvm::FunctionType *Ty = cast(getTypes().ConvertType(FD->getType())); - return GetOrCreateLLVMFunction(Name, Ty, GlobalDecl(FD), /*ForVTable=*/false); + return GetOrCreateLLVMFunction(Name, Ty, D, /*ForVTable=*/false); } llvm::Function *CodeGenModule::getIntrinsic(unsigned IID,const llvm::Type **Tys, -- cgit v1.1