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

[Jorge Botto via llvm-commits]

jf-botto 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?

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