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

[Florian Hahn via llvm-commits]

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@@ -425,9 +440,7 @@ static void addCanonicalIVRecipes(VPlan &Plan, VPBasicBlock *HeaderVPBB,
                                   DebugLoc DL) {
   Value *StartIdx = ConstantInt::get(IdxTy, 0);
   auto *StartV = Plan.getOrAddLiveIn(StartIdx);
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fhahn wrote:

Done separately in f26e8595c3073fafc822bfcdd3ca9dec32ab573b, thanks

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