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

[Paschalis Mpeis via llvm-commits]

paschalis-mpeis wrote:

@whousemyname you could double-check by trying the first commit before this PR (`3063eaf85~`) that it still has the crash you mention.

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