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implement support for struct and complex returns.

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llvm-svn: 39674
This commit is contained in:
Chris Lattner
2007-06-22 22:02:34 +00:00
parent e9a6453ded
commit 54fb19efaa
4 changed files with 26 additions and 3 deletions
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14
clang/CodeGen/CodeGenFunction.cpp
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@@ -43,6 +43,11 @@ const llvm::Type *CodeGenFunction::ConvertType(QualType T) {
return CGM.getTypes().ConvertType(T);
}
bool CodeGenFunction::hasAggregateLLVMType(QualType T) {
return !T->isRealType() && !T->isPointerType();
}
void CodeGenFunction::GenerateCode(const FunctionDecl *FD) {
LLVMIntTy = ConvertType(getContext().IntTy);
LLVMPointerWidth = Target.getPointerWidth(SourceLocation());
@@ -62,8 +67,15 @@ void CodeGenFunction::GenerateCode(const FunctionDecl *FD) {
llvm::Value *Undef = llvm::UndefValue::get(llvm::Type::Int32Ty);
AllocaInsertPt = Builder.CreateBitCast(Undef,llvm::Type::Int32Ty, "allocapt");
// Emit allocs for param decls.
// Emit allocs for param decls. Give the LLVM Argument nodes names.
llvm::Function::arg_iterator AI = CurFn->arg_begin();
// Name the struct return argument.
if (hasAggregateLLVMType(FD->getResultType())) {
AI->setName("agg.result");
++AI;
}
for (unsigned i = 0, e = FD->getNumParams(); i != e; ++i, ++AI) {
assert(AI != CurFn->arg_end() && "Argument mismatch!");
EmitParmDecl(*FD->getParamDecl(i), AI);