[llvm] [VPlan] Compute induction end values in VPlan. (PR #112145)

[Florian Hahn via llvm-commits]

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@@ -10299,6 +10292,39 @@ bool LoopVectorizePass::processLoop(Loop *L) {
                                            EPI, &LVL, &CM, BFI, PSI, Checks,
                                            *BestMainPlan);
 
+        // Collect PHI nodes of wide inductions in the VPlan for the epilogue.
+        // Those will need their resume-values computed from the main vector
+        // loop. Others can be removed in the main VPlan.
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fhahn wrote:

Yes, we only need resume values from the main plan, if there is a corresponding wide induction in the epilogue plan.

https://github.com/llvm/llvm-project/pull/112145