[llvm] [InstCombine] Check nowrap flags when folding comparison of GEPs with the same base pointer (PR #121892)

[Nikita Popov via llvm-commits]

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

LGTM. We'll still fall back to the generic handling below, so I think the simple check is fine.

https://github.com/llvm/llvm-project/pull/121892