[llvm] [AMDGPU][Verifier] Allow llvm.amdgcn.unreachable after cs.chain (PR #139494)

[Shilei Tian via llvm-commits]

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@@ -0,0 +1,21 @@
+; RUN: llvm-as < %s | llvm-dis | FileCheck %s
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shiltian wrote:

Don't we have `llvm/test/Verifier/AMDGPU` dedicated for our own IR verifier tests?

https://github.com/llvm/llvm-project/pull/139494