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

[Florian Hahn via llvm-commits]

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fhahn wrote:

You should be able to move this to the target-independent file, it probably needs `-force-widen-divrem-via-safe-divisor=false` passing and the loop must have a trip count of at least 4

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