[llvm] [LLVM] convergence verifier should visit all instructions (PR #66200)

[Matt Arsenault via llvm-commits]

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@@ -4805,6 +4803,8 @@ void Verifier::visitInstruction(Instruction &I) {
   BasicBlock *BB = I.getParent();
   Check(BB, "Instruction not embedded in basic block!", &I);
 
+  CV.visit(I);
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arsenm wrote:

CV should probably be renamed, I had no idea what this was 

https://github.com/llvm/llvm-project/pull/66200