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

[Florian Hahn via llvm-commits]

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@@ -513,16 +513,17 @@ 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,
+  /// Create a ResumePHI VPInstruction for the induction \p PhiRIR to resume
+  /// iteration count in the scalar epilogue from where the vectorized loop
+  /// left off, and add it to the scalar preheader of VPlan. \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 this additional bypass block along with the resume value coming
+  /// from it.
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fhahn wrote:

Updated, thanks !

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