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Return function results whose size is smaller than 128-bits in registers if ABI 

is N32/64.

llvm-svn: 143589
This commit is contained in:
Akira Hatanaka 2011-11-02 23:14:57 +00:00
parent e59da1688e
commit 1437852c38
1 changed files with 9 additions and 6 deletions
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15
clang/lib/CodeGen/TargetInfo.cpp
View File

@ -2993,8 +2993,9 @@ void MSP430TargetCodeGenInfo::SetTargetAttributes(const Decl *D,
namespace {
class MipsABIInfo : public ABIInfo {
static const unsigned MinABIStackAlignInBytes = 4;
bool IsO32;
public:
MipsABIInfo(CodeGenTypes &CGT) : ABIInfo(CGT) {}
MipsABIInfo(CodeGenTypes &CGT, bool _IsO32) : ABIInfo(CGT), IsO32(_IsO32) {}
ABIArgInfo classifyReturnType(QualType RetTy) const;
ABIArgInfo classifyArgumentType(QualType RetTy) const;
@ -3008,8 +3009,9 @@ const unsigned MipsABIInfo::MinABIStackAlignInBytes;
class MIPSTargetCodeGenInfo : public TargetCodeGenInfo {
unsigned SizeOfUnwindException;
public:
MIPSTargetCodeGenInfo(CodeGenTypes &CGT, unsigned SZ)
: TargetCodeGenInfo(new MipsABIInfo(CGT)), SizeOfUnwindException(SZ) {}
MIPSTargetCodeGenInfo(CodeGenTypes &CGT, bool IsO32)
: TargetCodeGenInfo(new MipsABIInfo(CGT, IsO32)),
SizeOfUnwindException(IsO32 ? 24 : 32) {}
int getDwarfEHStackPointer(CodeGen::CodeGenModule &CGM) const {
return 29;
@ -3051,7 +3053,8 @@ ABIArgInfo MipsABIInfo::classifyReturnType(QualType RetTy) const {
return ABIArgInfo::getIgnore();
if (isAggregateTypeForABI(RetTy)) {
if (RetTy->isAnyComplexType())
if ((IsO32 && RetTy->isAnyComplexType()) ||
(!IsO32 && (getContext().getTypeSize(RetTy) <= 128)))
return ABIArgInfo::getDirect();
return ABIArgInfo::getIndirect(0);
@ -3220,11 +3223,11 @@ const TargetCodeGenInfo &CodeGenModule::getTargetCodeGenInfo() {
case llvm::Triple::mips:
case llvm::Triple::mipsel:
return *(TheTargetCodeGenInfo = new MIPSTargetCodeGenInfo(Types, 24));
return *(TheTargetCodeGenInfo = new MIPSTargetCodeGenInfo(Types, true));
case llvm::Triple::mips64:
case llvm::Triple::mips64el:
return *(TheTargetCodeGenInfo = new MIPSTargetCodeGenInfo(Types, 32));
return *(TheTargetCodeGenInfo = new MIPSTargetCodeGenInfo(Types, false));
case llvm::Triple::arm:
case llvm::Triple::thumb: