[llvm] [BOLT][AArch64] Support for pointer authentication (v2) (PR #120064)

[Gergely Bálint via llvm-commits]

bgergely0 wrote:

@whousemyname Hi! Pretty sure this code has nothing to do with the BinarySection::hash function. Until this PR is merged, and considered "stable", I suggest to only use executables compiled with `-mbranch-protection=none` with BOLT, and use the code from the main branch.

https://github.com/llvm/llvm-project/pull/120064