[llvm] [VPlan] Update scalar induction resume values in VPlan. (PR #110577)

[Florian Hahn via llvm-commits]

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@@ -513,17 +513,20 @@ class InnerLoopVectorizer {
   /// Fix the non-induction PHIs in \p Plan.
   void fixNonInductionPHIs(VPTransformState &State);
 
-  /// Create a new phi node for the induction variable \p OrigPhi to resume
-  /// iteration count in the scalar epilogue, from where the vectorized loop
-  /// left off. \p Step is the SCEV-expanded induction step to use. In cases
-  /// where the loop skeleton is more complicated (i.e., epilogue vectorization)
-  /// and the resume values can come from an additional bypass block, the \p
-  /// AdditionalBypass pair provides information about the bypass block and the
-  /// end value on the edge from bypass to this loop.
-  PHINode *createInductionResumeValue(
-      PHINode *OrigPhi, const InductionDescriptor &ID, Value *Step,
-      ArrayRef<BasicBlock *> BypassBlocks,
-      std::pair<BasicBlock *, Value *> AdditionalBypass = {nullptr, nullptr});
+  /// Create a ResumePHI VPInstruction for the induction \p InductionPhiIRI to
+  /// resume iteration count in the scalar epilogue from where the vectorized
+  /// loop left off, and add it to the scalar preheader of VPlan. Also creates
+  /// the induction resume value, and the value for the bypass block, if needed.
+  /// \p Step is the SCEV-expanded induction step to use. In cases where the
+  /// loop skeleton is more complicated (i.e., epilogue vectorization) and the
+  /// resume values can come from an additional bypass block, \p
+  /// AdditionalBypassValue provides the end value on the edge from bypass to
+  /// this loop.
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fhahn wrote:

Updated, thanks

https://github.com/llvm/llvm-project/pull/110577