This is the mail archive of the
gcc-cvs@gcc.gnu.org
mailing list for the GCC project.
r267766 - in /trunk/gcc: ChangeLog config/aarch...
- From: sudi at gcc dot gnu dot org
- To: gcc-cvs at gcc dot gnu dot org
- Date: Wed, 09 Jan 2019 14:08:01 -0000
- Subject: r267766 - in /trunk/gcc: ChangeLog config/aarch...
Author: sudi
Date: Wed Jan 9 14:08:01 2019
New Revision: 267766
URL: https://gcc.gnu.org/viewcvs?rev=267766&root=gcc&view=rev
Log:
[AArch64, 2/6] Add new arch command line feaures from ARMv8.5-A
This patch is part of a series that enables ARMv8.5-A in GCC and
adds Branch Target Identification Mechanism.
This patch add all the command line feature that are added by ARMv8.5.
Optional extensions to armv8.5-a:
+rng : Random number Generation Instructions.
+memtag : Memory Tagging Extension.
ARMv8.5-A features that are optional to older arch:
+sb : Speculation barrier instruction.
+ssbs: Speculative Store Bypass Safe instruction.
+predres: Execution and Data Prediction Restriction instructions.
All of the above only effect the assembler and have already gone in the
trunk of binutils.
*** gcc/ChangeLog ***
2018-01-09 Sudakshina Das <sudi.das@arm.com>
* config/aarch64/aarch64-option-extensions.def: Define
AARCH64_OPT_EXTENSION for memtag, rng, sb, ssbs and predres.
* gcc/config/aarch64/aarch64.h (AARCH64_FL_RNG): New.
(AARCH64_FL_MEMTAG, ARCH64_FL_SB, AARCH64_FL_SSBS): New.
(AARCH64_FL_PREDRES): New.
(AARCH64_FL_FOR_ARCH8_5): Add AARCH64_FL_SB, AARCH64_FL_SSBS and
AARCH64_FL_PREDRES by default.
* gcc/doc/invoke.texi: Document rng, memtag, sb, ssbs and predres.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/aarch64/aarch64-option-extensions.def
trunk/gcc/config/aarch64/aarch64.h
trunk/gcc/doc/invoke.texi