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

[Matt Arsenault via llvm-commits]

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@@ -742,9 +742,13 @@ PreservedAnalyses LintPass::run(Function &F, FunctionAnalysisManager &AM) {
   Lint L(Mod, DL, AA, AC, DT, TLI);
   L.visit(F);
   dbgs() << L.MessagesStr.str();
-  if (AbortOnError && !L.MessagesStr.str().empty())
-    report_fatal_error(
-        "linter found errors, aborting. (enabled by abort-on-error)", false);
+  if (!L.MessagesStr.str().empty()) {
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arsenm wrote:

Shouldn't need the str()? 

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