[llvm] [VPlan] Introduce recipes for VP loads and stores. (PR #87816)

[Alexey Bataev via llvm-commits]

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@@ -9535,6 +9471,51 @@ void VPWidenLoadRecipe::execute(VPTransformState &State) {
   }
 }
 
+void VPWidenVPLoadRecipe::execute(VPTransformState &State) {
+  assert(State.UF == 1 && "Expected only UF == 1 when vectorizing with "
+                          "explicit vector length.");
+  // FIXME: Support reverse loading after vp_reverse is added.
+  assert(!isReverse() && "Reverse loads are not implemented yet.");
+
+  // Attempt to issue a wide load.
+  auto *LI = cast<LoadInst>(&Ingredient);
+
+  Type *ScalarDataTy = getLoadStoreType(&Ingredient);
+  auto *DataTy = VectorType::get(ScalarDataTy, State.VF);
+  const Align Alignment = getLoadStoreAlignment(&Ingredient);
+  bool CreateGather = !isConsecutive();
+
+  auto &Builder = State.Builder;
+  // Handle loads.
+  assert(LI && "Must have a load instruction");
+  State.setDebugLocFrom(getDebugLoc());
+  for (unsigned Part = 0; Part < State.UF; ++Part) {
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alexey-bataev wrote:

No need for the loop here, since expected that State.UF == 1

https://github.com/llvm/llvm-project/pull/87816