[llvm] [PAC][AArch64] Lower ptrauth constants in data (PR #94240)

[Daniil Kovalev via llvm-commits]

kovdan01 wrote:

@fmayer @pcc Please let me know if you want to leave some feedback before this is merged or if I can merge it "as is"

https://github.com/llvm/llvm-project/pull/94240