From 54fb19efaaa18f9417e6881506cdf15292ecccb6 Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Fri, 22 Jun 2007 22:02:34 +0000 Subject: implement support for struct and complex returns. llvm-svn: 39674 --- clang/CodeGen/CodeGenFunction.cpp | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) (limited to 'clang/CodeGen/CodeGenFunction.cpp') diff --git a/clang/CodeGen/CodeGenFunction.cpp b/clang/CodeGen/CodeGenFunction.cpp index b315ab40b4f..59336489c97 100644 --- a/clang/CodeGen/CodeGenFunction.cpp +++ b/clang/CodeGen/CodeGenFunction.cpp @@ -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); -- cgit v1.2.3