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

[via llvm-commits]

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@@ -547,16 +544,8 @@ class InnerLoopVectorizer {
 protected:
   friend class LoopVectorizationPlanner;
 
-  // Create a check to see if the vector loop should be executed
-  Value *createIterationCountCheck(ElementCount VF, unsigned UF) const;
-
-  /// Emit a bypass check to see if the vector trip count is zero, including if
-  /// it overflows.
-  void emitIterationCountCheck(BasicBlock *Bypass);
-
-  /// Emit basic blocks (prefixed with \p Prefix) for the iteration check,
-  /// vector loop preheader, middle block and scalar preheader.
-  void createVectorLoopSkeleton(StringRef Prefix);
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ayalz wrote:

Very good!

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