[llvm] [InstCombine] Use disjoint flag instead of calling haveNoCommonBitsSet. (PR #74222)

[Nikita Popov via llvm-commits]

nikic wrote:

Actually, can you please add an extra test that explicitly uses `or disjoint` with this transform? (Without haveNoCommonBitsSet being able to derive it.)

https://github.com/llvm/llvm-project/pull/74222