[llvm] [BOLT][AArch64] Support for pointer authentication (PR #117578)

[Gergely Bálint via llvm-commits]

bgergely0 wrote:

Closing as https://github.com/llvm/llvm-project/pull/120064 contains a new, better solution to this, that does not depend on the CFG.

https://github.com/llvm/llvm-project/pull/117578