[all-commits] [llvm/llvm-project] 475531: [llvm-exegesis][AArch64] Disable pauth and ldgm as...

[Lakshay Kumar via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 475531b884a1a203af6367df35f1722fe2383e06
      https://github.com/llvm/llvm-project/commit/475531b884a1a203af6367df35f1722fe2383e06
  Author: Lakshay Kumar <lakshayk at nvidia.com>
  Date:   2025-04-28 (Mon, 28 Apr 2025)

  Changed paths:
    A llvm/test/tools/llvm-exegesis/AArch64/skip_unsupported_instructions.s
    M llvm/tools/llvm-exegesis/lib/AArch64/Target.cpp

  Log Message:
  -----------
  [llvm-exegesis][AArch64] Disable pauth and ldgm as unsupported instructions fixed (#136868)

[llvm-exegesis][AArch64] Recommit: Disable pauth and ldgm as unsupported instructions.

Skipping AUT and LDGM opcode variants which currently throws "illegal
instruction".

Last pull request
[#132346](https://github.com/llvm/llvm-project/pull/132346) got reviewed
and merged but builder bot got failed. This was due to undefined
`PR_PAC_SET_ENABLED_KEYS` utilized were not defined in x86 arch,
resulting in build failure.

This is followup to merge the changes with following changes to fixup
the build failure.

Changes: 
- Fixed up the problem with arch specific check for `prctl` library
import
- Defining `PR_PAC_SET_ENABLED_KEYS` if undefined.



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