[llvm] [LV] Support strided load with a stride of -1 (PR #128718)

[Florian Hahn via llvm-commits]

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@@ -3072,6 +3087,48 @@ void VPWidenLoadEVLRecipe::print(raw_ostream &O, const Twine &Indent,
 }
 #endif
 
+void VPWidenStridedLoadRecipe::execute(VPTransformState &State) {
+  Type *ScalarDataTy = getLoadStoreType(&Ingredient);
+  auto *DataTy = VectorType::get(ScalarDataTy, State.VF);
+  const Align Alignment = getLoadStoreAlignment(&Ingredient);
+
+  auto &Builder = State.Builder;
+  State.setDebugLocFrom(getDebugLoc());
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fhahn wrote:

Shouldn't be needed, it is set before each recipe is executed

https://github.com/llvm/llvm-project/pull/128718