[llvm] [InstCombine] Fold (trunc X to i1) & !iszero(X & Pow2)) -> (X & (1 | Pow2)) == (1 | Pow2) (PR #119196)

[Andreas Jonson via llvm-commits]

andjo403 wrote:

this is a regression due to https://github.com/llvm/llvm-project/pull/84628

https://github.com/llvm/llvm-project/pull/119196