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

[Nikita Popov via llvm-commits]

nikic wrote:

I've tried the following variant that only checks for true/false results (https://github.com/llvm/llvm-project/commit/d8ea7f205a09e9c9adcd8556c21a1494cc05b170). Unfortunately, this still causes stage2 llvm-tblgen crashes, so this wasn't the only issue :(

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