[llvm] [LV] Support tail-folded epilogue loops (PR #208764)

[David Sherwood via llvm-commits]

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@@ -1760,6 +1760,24 @@ TEST_F(VPRecipeTest, CastVPReductionEVLRecipeToVPUser) {
   VPReductionEVLRecipe EVLRecipe(Recipe, *EVL, CondOp);
   checkVPRecipeCastImpl<VPReductionEVLRecipe, VPUser>(&EVLRecipe);
 }
+
+TEST_F(VPRecipeTest, CastVPWidenCanonicalIVRecipeToVPUser) {
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david-arm wrote:

Is this still needed?

https://github.com/llvm/llvm-project/pull/208764