implement support for struct and complex returns.
llvm-svn: 39674
diff --git a/clang/CodeGen/CodeGenFunction.cpp b/clang/CodeGen/CodeGenFunction.cpp
index b315ab4..5933648 100644
--- a/clang/CodeGen/CodeGenFunction.cpp
+++ b/clang/CodeGen/CodeGenFunction.cpp
@@ -43,6 +43,11 @@
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 @@
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);