[PATCH] D155986: [clang][AMDGPU]: Don't use byval for struct arguments in function ABI

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added inline comments.


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Comment at: clang/test/CodeGenOpenCL/amdgpu-abi-struct-arg-byref.cl:257
 // AMDGCN-LABEL: define dso_local void @FuncLargeTwoMember
-// AMDGCN-SAME: (ptr addrspace(5) noundef byval([[STRUCT_LARGESTRUCTTWOMEMBER:%.*]]) align 8 [[U:%.*]]) #[[ATTR0]] {
+// AMDGCN-SAME: (ptr addrspace(5) byref([[STRUCT_LARGESTRUCTTWOMEMBER:%.*]]) align 8 [[TMP0:%.*]]) #[[ATTR0]] {
 // AMDGCN-NEXT:  entry:
----------------
cfang wrote:
> arsenm wrote:
> > This lost the noundef, shouldn't lose it
> if (AI.getKind() == ABIArgInfo::Indirect) 
>   return "noundef"
> 
> Should we add IndirectAlised check and include in the this same patch? Thanks
> 
Don't understand this snippet, the attribute emission presumably comes from somewhere else


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D155986/new/

https://reviews.llvm.org/D155986