[llvm] [InstCombine] Improve select simplification based on known bits (PR #97289)

[Yingwei Zheng via llvm-commits]

dtcxzyw wrote:

This patch breaks a ton of `and/or of icmps` fold in some rust applications. See https://github.com/dtcxzyw/llvm-opt-benchmark/pull/818.
Can we mitigate the problem by skipping logical and/or patterns?



https://github.com/llvm/llvm-project/pull/97289