[llvm] [VPlan] Make canonical IV part of the region (PR #156262)

[via llvm-commits]

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@@ -9520,55 +9516,55 @@ static SmallVector<Instruction *> preparePlanForEpilogueVectorLoop(
   VPBasicBlock *Header = VectorLoop->getEntryBasicBlock();
   Header->setName("vec.epilog.vector.body");
 
-  DenseMap<Value *, Value *> ToFrozen;
   SmallVector<Instruction *> InstsToMove;
+  DenseMap<Value *, Value *> ToFrozen;
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ayalz wrote:

is this movement needed?

https://github.com/llvm/llvm-project/pull/156262