[PATCH][GAS][ARM] Command line support for -march=armv8.4-a [Patch (1/3)]

[Tamar Christina]

Hi All,


This patch adds command line support for Armv8.4-A.
It can be enabled through the new command line option -march=armv8.4-a.

Checked with check-gas on arm-none-eabi and armeb-none-eabi, no regressions.

Ok for master?

Ps. I do not have commit access so if OK can someone apply for me?

Thanks,
Tamar


gas/
2017-11-08  Jiong Wang  <jiong.wang@arm.com>

        * config/tc-arm.c (arm_archs): New entry for "armv8.4-a".
        * doc/c-arm.texi (-march): Document "armv8.4-a".

include/
2017-11-08  Jiong Wang  <jiong.wang@arm.com>

        * opcode/arm.h (ARM_EXT2_V8_4A): New macro.
        (ARM_AEXT2_V8_4A): Likewise.
        (ARM_ARCH_V8_4A): Likewise.

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