[llvm] [InstSimplify] Simplify the select with integer comparison relationship (PR #66668)

[via llvm-commits]

vfdff wrote:

revert the change for `x -nsw y <= -1 <==> x < y` because `sle -1 will get canonicalized to slt 0`, so should consider other way to address that.

https://github.com/llvm/llvm-project/pull/66668