[llvm] [LoopVectorize] Ensure VPPredInstPHIRecipe only uses InsertElementInst (PR #159543)

[Florian Hahn via llvm-commits]

https://github.com/fhahn commented:

Reverse ping @AbhinavMir , just checking in if you are still working on the fix and saw my latest comment?

https://github.com/llvm/llvm-project/pull/159543