[all-commits] [llvm/llvm-project] 786803: [AArch64] Update AUTIxSPPC and RETAxSPPC instructi...

[Jack Styles via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 7868033d2e846fa30c20455ca819fad29d9d795e
      https://github.com/llvm/llvm-project/commit/7868033d2e846fa30c20455ca819fad29d9d795e
  Author: Jack Styles <jack.styles at arm.com>
  Date:   2024-07-11 (Thu, 11 Jul 2024)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64InstrInfo.td
    M llvm/test/MC/AArch64/armv9.5a-pauthlr.s
    M llvm/test/MC/Disassembler/AArch64/armv9.5a-pauthlr.txt

  Log Message:
  -----------
  [AArch64] Update AUTIxSPPC and RETAxSPPC instructions for registers (#98303)

As of the 2024.06 Arm Architecture release, the register variants of the
AUTIxSPPC and RETAxSPPC instructions have been updated to be explicitly
different to the immediate variant. The instructions now follow the
format AUTIxSPPCR and RETAxSPPCR for the register variants, with the
immediate variants keeping their current form.

The Specs can be found at the following locations
AUTIASPPCR:
https://developer.arm.com/documentation/ddi0602/2024-06/Base-Instructions/AUTIASPPCR--Authenticate-return-address-using-key-A--using-a-register-?lang=en
AUTIBSPPCR:
https://developer.arm.com/documentation/ddi0602/2024-06/Base-Instructions/AUTIBSPPCR--Authenticate-return-address-using-key-B--using-a-register-?lang=en
RETAASPPCR and RETABSPPCR:
https://developer.arm.com/documentation/ddi0602/2024-06/Base-Instructions/RETAASPPCR--RETABSPPCR--Return-from-subroutine--with-enhanced-pointer-authentication-return-using-a-register-?lang=en



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