[llvm] [VPlan] Hook IR blocks into VPlan during skeleton creation (NFC) (PR #114292)

[Florian Hahn via llvm-commits]

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@@ -7907,32 +7935,19 @@ EpilogueVectorizerEpilogueLoop::createEpilogueVectorizedLoopSkeleton(
   EPI.MainLoopIterationCountCheck->getTerminator()->replaceUsesOfWith(
       VecEpilogueIterationCountCheck, LoopVectorPreHeader);
 
-  DT->changeImmediateDominator(LoopVectorPreHeader,
-                               EPI.MainLoopIterationCountCheck);
-
   EPI.EpilogueIterationCountCheck->getTerminator()->replaceUsesOfWith(
       VecEpilogueIterationCountCheck, LoopScalarPreHeader);
 
   if (EPI.SCEVSafetyCheck)
     EPI.SCEVSafetyCheck->getTerminator()->replaceUsesOfWith(
         VecEpilogueIterationCountCheck, LoopScalarPreHeader);
-  if (EPI.MemSafetyCheck)
+  if (EPI.MemSafetyCheck) {
     EPI.MemSafetyCheck->getTerminator()->replaceUsesOfWith(
         VecEpilogueIterationCountCheck, LoopScalarPreHeader);
-
-  DT->changeImmediateDominator(
-      VecEpilogueIterationCountCheck,
-      VecEpilogueIterationCountCheck->getSinglePredecessor());
+  }
 
   DT->changeImmediateDominator(LoopScalarPreHeader,
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fhahn wrote:

Yep this one is still needed for now.

https://github.com/llvm/llvm-project/pull/114292