[AArch64] Add support for ARMv8.2 PSTATE.UAO.

[Matthew Wahab]

Committed: https://sourceware.org/ml/binutils-cvs/2015-12/msg00100.html

Is this ok for the 2.26 branch?
Matthew

On 09/12/15 09:25, Matthew Wahab wrote:
> Hello,
>
> ARMv8.2 adds a new control bit PSTATE.UAO. This patch adds support for
> this bit to binutils, following the same basic pattern as for
> PSTATE.PAN. The new control bit is only available when -march=armv8.2-a
> is specified.
>
> Tested aarch64-none-linux-gnu with check-binutils and check-gas.
>
> Ok for trunk?
> Matthew
>
> gas/testsuite/
> 2015-12-09  Matthew Wahab  <matthew.wahab@arm.com>
>
>      * gas/aarch64/uao-directive.d: New.
>      * gas/aarch64/uao.d: New.
>      * gas/aarch64/uao.s: New.
>
> gas/
> 2015-12-09  Matthew Wahab  <matthew.wahab@arm.com>
>
>      * opcodes/aarch64-opc.c (aarch64_sys_regs): Add "uao".
>      (aarch64_sys_reg_supported_p): Add comment.  Add checks for "uao".
>      (aarch64_pstatefields): Add "uao".
>      (aarch64_pstatefield_supported_p): Add checks for "uao".