[llvm] [LV][EVL] Generate negative strided load/store for reversed load/store (PR #123608)

[Alexey Bataev via llvm-commits]

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@@ -2796,9 +2810,9 @@ InstructionCost VPWidenStoreEVLRecipe::computeCost(ElementCount VF,
   if (!Reverse)
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alexey-bataev wrote:

Same as in a Vplan based cost model

https://github.com/llvm/llvm-project/pull/123608