[llvm] [InstCombine] Simplify and/or of icmp eq with op replacement (PR #70335)

[Amy Huang via llvm-commits]

amykhuang wrote:

Might be already addressed in previous discussion on this bug, but in chrome we saw a binary size increase from this patch (crbug.com/1498542)

https://github.com/llvm/llvm-project/pull/70335