[llvm] [LV] Fix emission of debug message in legality check (PR #101924)

[Madhur Amilkanthwar via llvm-commits]

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@@ -1451,10 +1451,12 @@ bool LoopVectorizationLegality::canVectorize(bool UseVPlanNativePath) {
   // Check whether the loop-related control flow in the loop nest is expected by
   // vectorizer.
   if (!canVectorizeLoopNestCFG(TheLoop, UseVPlanNativePath)) {
-    if (DoExtraAnalysis)
+    if (DoExtraAnalysis) {
+      LLVM_DEBUG(dbgs() << "LV: legality check failed: loop nest");
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madhur13490 wrote:

Sure, thanks!

https://github.com/llvm/llvm-project/pull/101924