[llvm] [LV] Emit truncate for widen-induction in VPlan during construction. (PR #225991)

[Elvis Wang via llvm-commits]

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@@ -384,6 +384,24 @@ static void fixupVFUsersForEVL(VPlan &Plan, VPValue &EVL) {
     return isa<VPWidenPointerInductionRecipe>(U);
   });
 
+  // Also replace VF with EVL for truncated widen induction.
+  for (VPBasicBlock *VPBB : VPBlockUtils::blocksOnly<VPBasicBlock>(
+           vp_depth_first_deep(Plan.getVectorLoopRegion()->getEntry()))) {
+    for (VPRecipeBase &R : VPBB->phis()) {
+      auto *WidenIV = dyn_cast<VPWidenIntOrFpInductionRecipe>(&R);
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ElvisWang123 wrote:

Updated, thanks!

https://github.com/llvm/llvm-project/pull/225991