[llvm] [LLVM][CodeGen] Check Non Saturate Case in isSaturatingMinMax (PR #160637)

[David Green via llvm-commits]

https://github.com/davemgreen approved this pull request.

(Sure, we can rename these test too).

LGTM, thanks. Are you happy for us to merge?

https://github.com/llvm/llvm-project/pull/160637