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

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@@ -362,6 +362,7 @@ class VPDef {
     // START: Phi-like recipes. Need to be kept together.
     VPBlendSC,
     VPPredInstPHISC,
+    VPScalarCastSC,
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ayalz wrote:

Placed inside Phi-like recipes interval?

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