[llvm] [Verifier][AMDGPU] Restrict targets for chain calling convention. (PR #157469)

[Shilei Tian via llvm-commits]

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@@ -2938,10 +2938,16 @@ void Verifier::visitFunction(const Function &F) {
           "Calling convention parameter requires byval", &F);
     break;
   }
-  case CallingConv::AMDGPU_KERNEL:
-  case CallingConv::SPIR_KERNEL:
   case CallingConv::AMDGPU_CS_Chain:
   case CallingConv::AMDGPU_CS_ChainPreserve:
+  {
+    auto TT = M.getTargetTriple().str();
+    if (TT.find("gfx1200") || TT.find("gfx942"))
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shiltian wrote:

This is unacceptable. We should never do this.

https://github.com/llvm/llvm-project/pull/157469