[llvm] [VPlan] Make VPInstruction::AnyOf poison-safe. (PR #154156)

[Florian Hahn via llvm-commits]

fhahn wrote:

> Have you considered introducing an explicit freeze recipe for the early-exit path?

Yes, but as all users of AnyOf currently require freeze, it seems better to just make the recipe itself poison-safe to prevent accidential mis-use in the future

https://github.com/llvm/llvm-project/pull/154156