[llvm] Simplify `(a % b) lt/ge (b-1)` into `(a % b) eq/ne (b-1)` (PR #72504)

[Yingwei Zheng via llvm-commits]

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

LGTM. Please wait for additional approval from other reviewers.

Thank you!



https://github.com/llvm/llvm-project/pull/72504