[PATCH][GCC] aarch64: Add +flagm to -march

Richard Sandiford richard.sandiford@arm.com
Wed Dec 2 19:35:51 GMT 2020


Richard Sandiford via Gcc-patches <gcc-patches@gcc.gnu.org> writes:
> Przemyslaw Wirkus <Przemyslaw.Wirkus@arm.com> writes:
>> New +flagm (Condition flag manipulation from Armv8.4-A) feature option for
>> -march command line option.
>>
>> Please note that FLAGM stays an Armv8.4-A feature but now can be
>> assigned to other architectures or CPUs.
>>
>> OK for master?
>>
>> gcc/ChangeLog:
>>
>> * config/aarch64/aarch64-option-extensions.def
>> (AARCH64_OPT_EXTENSION): New +flagm option in -march for AArch64.
>> * config/aarch64/aarch64.h (AARCH64_FL_FLAGM): Add new flagm extension bit
>> mask.
>> (AARCH64_FL_FOR_ARCH8_4): Add flagm to Armv8.4-A.
>
> OK, thanks, and sorry for the slow review.

Just remembered that we also need documentation for the new feature flag
in doc/invoke.texi.

Thanks,
Richard


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