[llvm] [AArch64] Fix return address auth in tail call epilogues (PR #189484)

[Jon Roelofs via llvm-commits]

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jroelofs wrote:

I think you'll find that the pauth-lr and pacm side of this are pretty close to each other, aside from the main difference in AutOpc.

https://github.com/llvm/llvm-project/pull/189484