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merge functions with multiple function decls if they have the same name. 

llvm-svn: 44505
This commit is contained in:
Chris Lattner 2007-12-02 05:56:05 +00:00
parent e15d0dd63f
commit c5b3aab66b
1 changed files with 7 additions and 0 deletions
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7
clang/CodeGen/CodeGenModule.cpp
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@ -40,6 +40,13 @@ llvm::Constant *CodeGenModule::GetAddrOfGlobalDecl(const ValueDecl *D) {
const llvm::Type *Ty = getTypes().ConvertType(ASTTy);
if (isa<FunctionDecl>(D)) {
const llvm::FunctionType *FTy = cast<llvm::FunctionType>(Ty);
// Check to see if the function already exists.
if (llvm::Function *F = getModule().getFunction(D->getName())) {
// If so, make sure it is the correct type.
return llvm::ConstantExpr::getBitCast(F, llvm::PointerType::get(FTy));
}
// FIXME: param attributes for sext/zext etc.
return Entry = new llvm::Function(FTy, llvm::Function::ExternalLinkage,
D->getName(), &getModule());