[llvm] [LV] Keep predicate select when optimizeFindIVReductions when folding tail. (PR #191166)

[Elvis Wang via llvm-commits]

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@@ -5902,6 +5904,10 @@ void VPlanTransforms::optimizeFindIVReductions(VPlan &Plan,
       }
     }
 
+    // Update the predicated select with FindLastSelect when folding tail.
+    if (HeaderMask)
+      PredSelect->setOperand(1, FindLastSelect);
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ElvisWang123 wrote:

Updated to LogicalAnd approach, thanks!

https://github.com/llvm/llvm-project/pull/191166