[llvm] [InstCombine] Handle ceil division idiom (PR #100977)

[Antonio Frighetto via llvm-commits]

antoniofrighetto wrote:

Thank you for clarifying this! Closing this as I'd rather avoid introducing patterns with dubious real-world usefulness. Happy to reopen it in the future, should it turn out to be needed.

https://github.com/llvm/llvm-project/pull/100977