[llvm] [AArch64] Emit negate-ra-state CFI for pauth epilogues (PR #189924)

[Victor Campos via llvm-commits]

vhscampos wrote:

Why was it only emitted for Async Dwarf before this patch? And what changed to ensure that the new behaviour is still correct?

https://github.com/llvm/llvm-project/pull/189924