[clang-tools-extra] [clang] [llvm] [VPlan] Add new VPUniformPerUFRecipe, use for step truncation. (PR #78113)

[via cfe-commits]

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@@ -1338,6 +1339,34 @@ class VPWidenCastRecipe : public VPRecipeWithIRFlags {
   Type *getResultType() const { return ResultTy; }
 };
 
+/// VPScalarCastRecipe is a recipe o create scalar cast instructions.
+class VPScalarCastRecipe : public VPRecipeBase, public VPValue {
+  /// Cast instruction opcode.
+  Instruction::CastOps Opcode;
+
+  /// Result type for the cast.
+  Type *ResultTy;
+
+  Value *generate(VPTransformState &State, unsigned Part);
+
+public:
+  VPScalarCastRecipe(Instruction::CastOps Opcode, VPValue *Op, Type *ResultTy)
+      : VPRecipeBase(VPDef::VPScalarCastSC, {Op}), VPValue(this),
+        Opcode(Opcode), ResultTy(ResultTy) {}
+
+  ~VPScalarCastRecipe() override = default;
+
+  VP_CLASSOF_IMPL(VPDef::VPWidenIntOrFpInductionSC)
+
+  void execute(VPTransformState &State) override;
+
+#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
+  /// Print the recipe.
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ayalz wrote:

nit: comment adds little knowledge if any.

https://github.com/llvm/llvm-project/pull/78113