================
@@ -155,17 +211,27 @@ ABIArgInfo AMDGPUABIInfo::classifyReturnType(QualType
RetTy) const {
RD && RD->hasFlexibleArrayMember())
return DefaultABIInfo::classifyReturnType(RetTy);
- // Pack aggregates <= 4 bytes into single VGPR or pair.
+ // Pack aggregates <= 8 bytes into single VGPR or pair, but only if they
+ // contain sub-32-bit integer types. Aggregates with floats or full-sized
+ // integers should preserve their original types.
uint64_t Size = getContext().getTypeSize(RetTy);
- if (Size <= 16)
- return ABIArgInfo::getDirect(llvm::Type::getInt16Ty(getVMContext()));
-
- if (Size <= 32)
- return ABIArgInfo::getDirect(llvm::Type::getInt32Ty(getVMContext()));
-
if (Size <= 64) {
- llvm::Type *I32Ty = llvm::Type::getInt32Ty(getVMContext());
- return ABIArgInfo::getDirect(llvm::ArrayType::get(I32Ty, 2));
+ const auto *RD = RetTy->getAsRecordDecl();
----------------
shiltian wrote:
no auto
https://github.com/llvm/llvm-project/pull/185083
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