[llvm] [LV] Extend FindLastIV to unsigned case (PR #141752)

[Ramkumar Ramachandra via llvm-commits]

artagnon wrote:

> To make sure I'm understanding this correctly, the benefit of using the umax reduction is that it allows us to handle IVs whose range contains the signed min. Whereas the smax reduction allows to handle IVs whose range contains the unsigned min?

Yes, that's correct.

https://github.com/llvm/llvm-project/pull/141752