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Re: [AArch64] Fix ARMv8.1 and ARMv8.2 feature settings.
- From: Tristan Gingold <gingold at adacore dot com>
- To: Matthew Wahab <matthew dot wahab at foss dot arm dot com>
- Cc: binutils at sourceware dot org
- Date: Fri, 11 Dec 2015 09:50:44 +0100
- Subject: Re: [AArch64] Fix ARMv8.1 and ARMv8.2 feature settings.
- Authentication-results: sourceware.org; auth=none
- References: <5666FE58 dot 1000505 at foss dot arm dot com> <56699A84 dot 1000304 at foss dot arm dot com>
> On 10 Dec 2015, at 16:30, Matthew Wahab <matthew.wahab@foss.arm.com> wrote:
>
> Committed: https://sourceware.org/ml/binutils-cvs/2015-12/msg00096.html
>
> Is this also ok for the 2.26 branch?
ok too.
> 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.
>>
>>
>