[llvm] [DAG] Fold (and X, (add (not Y), Z)) -> (and X, (not (sub Y, Z))). (PR #141476)

[Simon Pilgrim via llvm-commits]

https://github.com/RKSimon requested changes to this pull request.

Please can regenerate the failing test files:
    LLVM :: CodeGen/LoongArch/ctlz-cttz-ctpop.ll
    LLVM :: CodeGen/X86/vector-lzcnt-128.ll


https://github.com/llvm/llvm-project/pull/141476