[llvm] [InstCombine] Combine ptrauth constants into ptrauth intrinsics. (PR #94705)

[Daniil Kovalev via llvm-commits]

https://github.com/kovdan01 commented:

LGTM with minor nits - the changes look reasonable, so I'm happy with them if no other objections are covered by reviewers. I'd prefer to at least see final @nikic 's review before this gets merged.

https://github.com/llvm/llvm-project/pull/94705