[llvm] [AMDGPU] Split struct kernel arguments (PR #133786)

[Yaxun Liu via llvm-commits]

================
@@ -357,17 +357,51 @@ void MetadataStreamerMsgPackV4::emitKernelArg(const Argument &Arg,
   Align ArgAlign;
   std::tie(ArgTy, ArgAlign) = getArgumentTypeAlign(Arg, DL);
 
+  // Assuming the argument is not split from struct-type argument by default,
+  // unless we find it in function attribute amdgpu-argument-mapping.
+  unsigned OriginalArgIndex = ~0U;
+  uint64_t OriginalArgOffset = 0;
+  if (Func->hasFnAttribute("amdgpu-argument-mapping")) {
----------------
yxsamliu wrote:

will do

https://github.com/llvm/llvm-project/pull/133786