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| author | Przemyslaw Wirkus <przemyslaw.wirkus@arm.com> | 2020-12-09 21:29:58 +0000 |
|---|---|---|
| committer | Przemyslaw Wirkus <przemyslaw.wirkus@arm.com> | 2020-12-09 22:09:20 +0000 |
| commit | ef33047a8b93d416f08f3f640dd65f3887fb05c1 (patch) | |
| tree | cacdfca027fae061923913482341d8220bf36cf2 /gcc/tree-ssa-phiopt.c | |
| parent | 4c61e35f20fe2ffeb9421dbd6f26c767a234a4a0 (diff) | |
| download | gcc-ef33047a8b93d416f08f3f640dd65f3887fb05c1.zip gcc-ef33047a8b93d416f08f3f640dd65f3887fb05c1.tar.gz gcc-ef33047a8b93d416f08f3f640dd65f3887fb05c1.tar.bz2 | |
aarch64: Add +pauth to -march
New +pauth (Pointer Authentication from Armv8.3-A) feature option for
-march command line option.
Please note that majority of PAUTH instructions are implemented behind HINT
instruction. PAUTH stays an Armv8.3-A feature but now can be assigned to other
architectures or CPUs.
gcc/ChangeLog:
* config/aarch64/aarch64-option-extensions.def
(AARCH64_OPT_EXTENSION): New +pauth option in -march for AArch64.
* config/aarch64/aarch64.h (AARCH64_FL_PAUTH): New pauth extension bitmask.
(AARCH64_ISA_PUATH): New ISA bitmask for PAUTH.
(AARCH64_FL_FOR_ARCH8_3): Add PAUTH to Armv8.3-A.
(TARGET_PAUTH): New target mask to isolate PAUTH instructions.
* config/aarch64/aarch64.md (do_return): Condition set to TARGET_PAUTH.
* doc/invoke.texi: Update docs for +flagm and +pauth.
Diffstat (limited to 'gcc/tree-ssa-phiopt.c')
0 files changed, 0 insertions, 0 deletions