[llvm] [LV][EVL]Support reversed loads/stores. (PR #88025)

[via llvm-commits]

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@@ -9383,12 +9377,17 @@ void VPWidenLoadRecipe::execute(VPTransformState &State) {
   }
 }
 
+static Value *reverseMask(IRBuilderBase &Builder, Value *Mask, Value *EVL,
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ayalz wrote:

```suggestion
static Value *createReverseMaskEVL(IRBuilderBase &Builder, Value *Mask, Value *EVL,
```

https://github.com/llvm/llvm-project/pull/88025