[llvm] InstCombine: improve optimizations for ceiling division with no overflow (PR #142869)

[Yingwei Zheng via llvm-commits]

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

LGTM. Please wait for additional approval from other reviewers :)

> The contents of this pull request were substantially written using claude-code. I've reviewed to the best of my ability (it's been years since I did any compilers work).

I don't know the policy for AI-generated content in LLVM.
See also https://discourse.llvm.org/t/rfc-define-policy-on-ai-tool-usage-in-contributions/78758. IMO it is fine if contributors can ensure they have the right to contribute code under the terms of our license.


https://github.com/llvm/llvm-project/pull/142869