[all-commits] [llvm/llvm-project] 1bbb79: [Clang][AArch64] Add ACLE macros for FEAT_PAuth_LR...

[Lucas Duarte Prates via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 1bbb797e9c7f37aa814b9bbaba2961f730a26891
      https://github.com/llvm/llvm-project/commit/1bbb797e9c7f37aa814b9bbaba2961f730a26891
  Author: Lucas Duarte Prates <lucas.prates at arm.com>
  Date:   2024-02-01 (Thu, 01 Feb 2024)

  Changed paths:
    M clang/lib/Basic/Targets/AArch64.cpp
    M clang/lib/Basic/Targets/AArch64.h
    M clang/test/Preprocessor/aarch64-target-features.c

  Log Message:
  -----------
  [Clang][AArch64] Add ACLE macros for FEAT_PAuth_LR (#80163)

This updates clang's target defines to include the ACLE changes covering
the FEAT_PAuth_LR architecture extension.
The changes include:
* The new `__ARM_FEATURE_PAUTH_LR` feature macro, which is set to 1 when
  FEAT_PAuth_LR is available in the target.
* A new bit field for the existing `__ARM_FEATURE_PAC_DEFAULT` macro,
  indicating the use of PC as a diversifier for Pointer Authentication
  (from -mbranch-protection=pac-ret+pc).

The approved changes to the ACLE spec can be found here:
https://github.com/ARM-software/acle/pull/292