[llvm] [InstCombine] Combine ptrauth intrin. callee into same-key bundle. (PR #94707)

[Daniil Kovalev via llvm-commits]

https://github.com/kovdan01 requested changes to this pull request.

Changes are mostly OK as for me, but I think that several test cases are missing and also the code can be re-organized a little so we fail earlier for the majority of cases when such combining is not possible.

https://github.com/llvm/llvm-project/pull/94707