[llvm] [InstCombine] Implemented missed optimization in muldivrem (PR #140916)

[Yingwei Zheng via llvm-commits]

dtcxzyw wrote:

> Hi, can you suggest what to do instead of this?

You can implement the fold here: https://github.com/llvm/llvm-project/blob/0edc8b59ab82c868cb76b5b7339916c21d0a35ee/llvm/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp#L1314-L1397

Please read https://llvm.org/docs/InstCombineContributorGuide.html for more details (proofs/tests/...).


https://github.com/llvm/llvm-project/pull/140916