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

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git-clang-format --diff origin/main HEAD --extensions cpp -- llvm/lib/IR/Verifier.cpp
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``````````diff
diff --git a/llvm/lib/IR/Verifier.cpp b/llvm/lib/IR/Verifier.cpp
index 4f2aa4005..bf05113c8 100644
--- a/llvm/lib/IR/Verifier.cpp
+++ b/llvm/lib/IR/Verifier.cpp
@@ -2933,8 +2933,7 @@ void Verifier::visitFunction(const Function &F) {
     break;
   }
   case CallingConv::AMDGPU_CS_Chain:
-  case CallingConv::AMDGPU_CS_ChainPreserve:
-  {
+  case CallingConv::AMDGPU_CS_ChainPreserve: {
     auto TT = M.getTargetTriple().str();
     if (TT.find("gfx1200") || TT.find("gfx942"))
       Check(false, "Chain calling convention is invalid on this target", &F);

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