[llvm] LoopVectorize: run verifyFunction once (PR #91470)

[Ramkumar Ramachandra via llvm-commits]

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@@ -10359,6 +10357,8 @@ LoopVectorizeResult LoopVectorizePass::runImpl(
     }
   }
 
+  assert(!Changed || !verifyFunction(F, &dbgs()));
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artagnon wrote:

Sorry about this; fixed now.

https://github.com/llvm/llvm-project/pull/91470