[llvm] [LV] Decompose WidenIntOrFPInduction into phi and update recipes (PR #82021)

[Shih-Po Hung via llvm-commits]

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@@ -2859,6 +2877,9 @@ class VPlan {
   /// Represents the loop-invariant VF * UF of the vector loop region.
   VPValue VFxUF;
 
+  /// Represents widened VF * UF for each UF of the vector loop region.
+  VPValue WidenVFxUF;
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arcbbb wrote:

To work with VPValue type inference , I create a recipe for VFxUF in #78309.
I thought similar challenge might arise with WidenVFxUF.
I'm seeking @fhahn's perspective on this matter.

https://github.com/llvm/llvm-project/pull/82021