[all-commits] [llvm/llvm-project] 089cc1: [AArch64][PAC] Move emission of LR checks in tail ...

[Anatoly Trosinenko via All-commits]

  Branch: refs/heads/users/atrosinenko/move-lr-checks-to-asmprinter
  Home:   https://github.com/llvm/llvm-project
  Commit: 089cc13bbd2cac76a2d3fc0b2f72b0bccda5b188
      https://github.com/llvm/llvm-project/commit/089cc13bbd2cac76a2d3fc0b2f72b0bccda5b188
  Author: Anatoly Trosinenko <atrosinenko at accesssoftek.com>
  Date:   2024-10-02 (Wed, 02 Oct 2024)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64AsmPrinter.cpp
    M llvm/lib/Target/AArch64/AArch64InstrInfo.cpp
    M llvm/lib/Target/AArch64/AArch64InstrInfo.td
    M llvm/lib/Target/AArch64/AArch64PointerAuth.cpp
    M llvm/lib/Target/AArch64/AArch64PointerAuth.h
    M llvm/lib/Target/AArch64/AArch64Subtarget.cpp
    M llvm/lib/Target/AArch64/AArch64Subtarget.h
    M llvm/test/CodeGen/AArch64/ptrauth-ret-trap.ll
    M llvm/test/CodeGen/AArch64/sign-return-address-tailcall.ll

  Log Message:
  -----------
  [AArch64][PAC] Move emission of LR checks in tail calls to AsmPrinter

Move the emission of the checks performed on the authenticated LR value
during tail calls to AArch64AsmPrinter class, so that different checker
sequences can be reused by pseudo instructions expanded there.
This adds one more option to AuthCheckMethod enumeration, the generic
XPAC variant which is not restricted to checking the LR register.



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