[llvm] [InstCombine] Simplify `(add/sub (sub/add) (sub/add))` irrelivant of use-count (PR #105866)

[via llvm-commits]

goldsteinn wrote:

> This patch causes clang to miscompile lief: Reproducer:
> 
[... snip ...]
> 
> It should map `0` to `65(ascii 'A')`, not `-1`.

Fixed... wasnt guarding the `foldAddLike` in `visitOr` with a `disjoint` check...

https://github.com/llvm/llvm-project/pull/105866