Re: [AArch64] Fix ARMv8.1 and ARMv8.2 feature settings.

[Matthew Wahab <matthew dot wahab at foss dot arm dot com>]

Committed: https://sourceware.org/ml/binutils-cvs/2015-12/msg00096.html

Is this also ok for the 2.26 branch?
Matthew

On 08/12/15 15:59, Matthew Wahab wrote:
> Hello,
>
> The ARMv8.1 architecture includes CRC as a required extension but this
> isn't reflected in the features enabled by -march=armv8.1-a. The FP16
> feature modifier also clashes with AARCH64_FEATURE_V8_1 and the list of
> features for ARMv8.2 is missing ARMv8.1 features.
>
> This patch enables +crc for -march values of armv8.1-a and later. It
> also fixes the values for AARCH64_FEATURE_F16 and makes
> AARCH64_ARCH_V8_2 a superset of AARCH64_ARCH_V8_2.
>
> Tested aarch64-none-linux-gnu with cross-compiled check-binutils and
> check-gas.
>
> Ok for trunk?
> Matthew
>
> gas/
> 2015-12-07  Matthew Wahab  <matthew.wahab@arm.com>
>
>      * doc/c-aarch64.texi (AArch64 Extensions): Update entry for crc.
>
> include/opcode
> 2015-12-07  Matthew Wahab  <matthew.wahab@arm.com>
>
>      * aarch64.h (AARCH64_FEATURE_F16): Fix clash with
>      AARCH64_FEATURE_V8_1.
>      (AARCH64_ARCH_V8_1): Add AARCH64_FEATURE_CRC.
>      (AARCH64_ARCH_V8_2): Add AARCH64_FEATURE_CRC and
>      AARCH64_FEATURE_V8_1.