[llvm] [ConstraintElim] Check of other OP is guaranteed to not be undef/poison. (PR #76182)

[Nikita Popov via llvm-commits]

https://github.com/nikic commented:

If the operand isn't poison, wouldn't the logical op get converted to a bitwise op by InstCombine? Are we concerned about phase ordering issues here?

https://github.com/llvm/llvm-project/pull/76182