[llvm] [LV] Introduce the EVLIVSimplify Pass for EVL-vectorized loops (PR #91796)

[Min-Yih Hsu via llvm-commits]

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@@ -68,6 +68,9 @@
 ; CHECK-NEXT:       Expand reduction intrinsics
 ; CHECK-NEXT:       Natural Loop Information
 ; CHECK-NEXT:       TLS Variable Hoist
+; CHECK-NEXT:       Scalar Evolution Analysis
+; CHECK-NEXT:       Loop Pass Manager
+; CHECK-NEXT:         EVL-based Induction Variables Simplify
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mshockwave wrote:

IIUC in order to do that we need to put EVLIndVarSimplify side-by-side with LSR, but I feel like we can make good uses of canonical form loops even between LSR and CodeGenPrepare. Do you think that will be the case?

https://github.com/llvm/llvm-project/pull/91796