[ARM] Add ARMv8.2 architecture feature and command line option.

[Ramana Radhakrishnan]

On Wed, Nov 18, 2015 at 11:15 AM, Matthew Wahab
<matthew.wahab@foss.arm.com> wrote:
> Hello,
>
> ARMv8.2 is an architectural extension of ARMv8. This patch adds an
> architecture feature macro for ARMv8.2 to the binutils ARM target
> with GAS command line option -march=armv8.2-a.
>
> Tested arm-none-linux-gnueabihf with cross-compiled check-binutils and
> check-gas. Checked the HTML documentation in Firefox.
>
> Ok for trunk?

This is OK for trunk.

I'd like this backported to binutils-2.26 branch if Tristan ok's it.


regards
Ramana

> Matthew
>
> gas/
> 2015-11-18  Matthew Wahab  <matthew.wahab@arm.com>
>
>         * config/tc-arm.c (arm_archs): Add "armv8.2-a".
>         * doc/c-arm.texi (-march): Add "armv8.2-a".
>
> include/opcode/
> 2015-11-18  Matthew Wahab  <matthew.wahab@arm.com>
>
>         * arm.h (ARM_EXT2_V8_2A): New.
>         (ARM_ARCH_V8_2A): New.