[llvm] [InstCombine] Fold `(icmp eq/ne (add nuw x, y), 0)` -> `(icmp eq/ne (or x, y), 0)` (PR #88088)

[Nikita Popov via llvm-commits]

https://github.com/nikic commented:

This LGTM with the test fixed. I agree that converting this to or is better.

https://github.com/llvm/llvm-project/pull/88088