[llvm] [BOLT][AArch64] Handle OpNegateRAState to enable optimizing binaries with pac-ret hardening (PR #120064)

[Gergely Bálint via llvm-commits]

bgergely0 wrote:

Hi @yafet-a !

The bugs I've seen were related to function splitting. 

Instrumentation mode was disallowed based on the flag, as it will be covered in a follow-up PR. Currently, a binary using pac-ret will produce a broken instrumented binary.
If you are using the patch in it's current state, please choose another method for collecting profile data (e.g. perf).


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