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

[Florian Hahn via llvm-commits]

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@@ -10295,23 +10342,16 @@ bool LoopVectorizePass::processLoop(Loop *L) {
                                              RdxDesc.getRecurrenceStartValue());
             }
           } else {
-            // Create induction resume values for both widened pointer and
-            // integer/fp inductions and update the start value of the induction
-            // recipes to use the resume value.
+            // Retrieve the induction resume values for wide inductions from
+            // their original phi nodes in the scalar loop.
             PHINode *IndPhi = nullptr;
-            const InductionDescriptor *ID;
             if (auto *Ind = dyn_cast<VPWidenPointerInductionRecipe>(&R)) {
               IndPhi = cast<PHINode>(Ind->getUnderlyingValue());
-              ID = &Ind->getInductionDescriptor();
             } else {
               auto *WidenInd = cast<VPWidenIntOrFpInductionRecipe>(&R);
               IndPhi = WidenInd->getPHINode();
-              ID = &WidenInd->getInductionDescriptor();
             }
-
-            ResumeV = MainILV.createInductionResumeValue(
-                IndPhi, *ID, getExpandedStep(*ID, ExpandedSCEVs),
-                {EPI.MainLoopIterationCountCheck});
+            ResumeV = IndPhi->getIncomingValueForBlock(L->getLoopPreheader());
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fhahn wrote:

Updated, thanks

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