[llvm-branch-commits] [llvm] release/18.x: [InstCombine] Fix miscompile in negation of select (#89698) (PR #91089)

[Nikita Popov via llvm-branch-commits]

nikic wrote:

Declining backport: This is an ABI breaking change, and while it would be possible to rewrite the fix in a way that does not break ABI, I don't think the fix itself is important to backport (this is not a regression, the issue exists since at least LLVM 12).

https://github.com/llvm/llvm-project/pull/91089