[llvm] [InstCombine] Factorise add/sub and max/min using distributivity (PR #101507)

[Yingwei Zheng via llvm-commits]

dtcxzyw wrote:

> @dtcxzyw, I was planning on making a second PR built upon this to handle the cases you mention. Would you rather me use this PR _just_ for those cases you mention?

Please file a separate PR.


https://github.com/llvm/llvm-project/pull/101507