diff options
Diffstat (limited to 'lib/CodeGen/TargetInfo.cpp')
-rw-r--r-- | lib/CodeGen/TargetInfo.cpp | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/lib/CodeGen/TargetInfo.cpp b/lib/CodeGen/TargetInfo.cpp index ecd81d84b1fa..4ebbef7dfb5b 100644 --- a/lib/CodeGen/TargetInfo.cpp +++ b/lib/CodeGen/TargetInfo.cpp @@ -4890,10 +4890,16 @@ ABIArgInfo AArch64ABIInfo::classifyArgumentType(QualType Ty) const { // Empty records are always ignored on Darwin, but actually passed in C++ mode // elsewhere for GNU compatibility. - if (isEmptyRecord(getContext(), Ty, true)) { + uint64_t Size = getContext().getTypeSize(Ty); + bool IsEmpty = isEmptyRecord(getContext(), Ty, true); + if (IsEmpty || Size == 0) { if (!getContext().getLangOpts().CPlusPlus || isDarwinPCS()) return ABIArgInfo::getIgnore(); + // GNU C mode. The only argument that gets ignored is an empty one with size + // 0. + if (IsEmpty && Size == 0) + return ABIArgInfo::getIgnore(); return ABIArgInfo::getDirect(llvm::Type::getInt8Ty(getVMContext())); } @@ -4906,7 +4912,6 @@ ABIArgInfo AArch64ABIInfo::classifyArgumentType(QualType Ty) const { } // Aggregates <= 16 bytes are passed directly in registers or on the stack. - uint64_t Size = getContext().getTypeSize(Ty); if (Size <= 128) { // On RenderScript, coerce Aggregates <= 16 bytes to an integer array of // same size and alignment. @@ -4946,7 +4951,8 @@ ABIArgInfo AArch64ABIInfo::classifyReturnType(QualType RetTy) const { : ABIArgInfo::getDirect()); } - if (isEmptyRecord(getContext(), RetTy, true)) + uint64_t Size = getContext().getTypeSize(RetTy); + if (isEmptyRecord(getContext(), RetTy, true) || Size == 0) return ABIArgInfo::getIgnore(); const Type *Base = nullptr; @@ -4956,7 +4962,6 @@ ABIArgInfo AArch64ABIInfo::classifyReturnType(QualType RetTy) const { return ABIArgInfo::getDirect(); // Aggregates <= 16 bytes are returned directly in registers or on the stack. - uint64_t Size = getContext().getTypeSize(RetTy); if (Size <= 128) { // On RenderScript, coerce Aggregates <= 16 bytes to an integer array of // same size and alignment. |