[llvm] [InstCombine] Add ctpop(A | B) + ctpop(A & B) -> ctpop(A) + ctpop(B) (PR #79089)

[Nikita Popov via llvm-commits]

nikic wrote:

I agree with @dtcxzyw. The pattern here is simple enough that we *could* accept it without knowing about a specific use-case, but at the same time I have a really hard time imaging where this could possibly come up. I'm going to decline it for now.

https://github.com/llvm/llvm-project/pull/79089