[clang] [flang] [llvm] [TargetVerifier][AMDGPU] Add TargetVerifier. (PR #123609)

[Shilei Tian via llvm-commits]

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@@ -481,6 +481,9 @@ static cl::opt<bool> HasClosedWorldAssumption(
     cl::desc("Whether has closed-world assumption at link time"),
     cl::init(false), cl::Hidden);
 
+static cl::opt<bool> VerifyTarget("verify-tgt",
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shiltian wrote:

`verify-tgt` is too broad. I'd add an `amdgpu-` prefix.

https://github.com/llvm/llvm-project/pull/123609