[llvm] [InstCombine] Fold -X / -Y -> X / Y (PR #88422)

[Yingwei Zheng via llvm-commits]

dtcxzyw wrote:

> a lot of software this was pretty much how it looked.

I will accept this patch when we meet this pattern in some real-world applications.


https://github.com/llvm/llvm-project/pull/88422