[llvm] [VPlan] Don't fold live ins with both scalar and vector operands (PR #154067)

[Florian Hahn via llvm-commits]

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@@ -976,14 +976,9 @@ static Value *tryToFoldLiveIns(const VPRecipeBase &R, unsigned Opcode,
                           RFlags.getGEPNoWrapFlags());
   }
   case VPInstruction::PtrAdd:
-  case VPInstruction::WidePtrAdd:
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fhahn wrote:

Do we need this? If both are constants, they both should be scalars, and the fold should just work, and the result re-broadcasted?

https://github.com/llvm/llvm-project/pull/154067