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

[via llvm-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.
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ayalz wrote:

```suggestion
/// VPScalarCastRecipe is a recipe to create scalar cast instructions.
```

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