[llvm] [VPlan] Add VPlan-based addMinIterCheck, replace ILV for non-epilogue. (PR #153643)

[Florian Hahn via llvm-commits]

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@@ -2423,7 +2385,7 @@ void InnerLoopVectorizer::createVectorLoopSkeleton(StringRef Prefix) {
   // NOTE: The Plan's scalar preheader VPBB isn't replaced with a VPIRBasicBlock
   // wrapping LoopScalarPreHeader here at the moment, because the Plan's scalar
   // preheader may be unreachable at this point. Instead it is replaced in
-  // createVectorizedLoopSkeleton.
+  // executePlan.
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fhahn wrote:

Should be done in ffd0f5fd217e66b6843bc420f7c37042e562810d

https://github.com/llvm/llvm-project/pull/153643