[Pixman] [PATCH 2/3] build: use '-mloongson-mmi' for Loongson MMI.

[Shiyou Yin]

>-----Original Message-----
>From: YunQiang Su [mailto:wzssyqa at gmail.com]
>Sent: Tuesday, February 11, 2020 6:48 PM
>To: Shiyou Yin
>Cc: pixman at lists.freedesktop.org
>Subject: Re: [Pixman] [PATCH 2/3] build: use '-mloongson-mmi' for Loongson MMI.
>
>Shiyou Yin <yinshiyou-hf at loongson.cn> 于2020年2月11日周二 下午6:29写道：
>>
>>
>> >-----Original Message-----
>> >From: YunQiang Su [mailto:wzssyqa at gmail.com]
>> >Sent: Tuesday, February 11, 2020 5:26 PM
>> >To: Yin Shiyou
>> >Cc: pixman at lists.freedesktop.org
>> >Subject: Re: [Pixman] [PATCH 2/3] build: use '-mloongson-mmi' for Loongson MMI.
>> >
>> >Yin Shiyou <yinshiyou-hf at loongson.cn> 于2020年2月11日周二 下午3:59写道：
>> >>
>> >> It's suggested to use '-mloongson-mmi' to enable MMI.
>> >> Use '-march=loongson2f' will lead a link error in new platform
>> >> while config check and then MMI will be disabled.
>> >> ---
>> >>  configure.ac | 2 +-
>> >>  meson.build  | 2 +-
>> >>  2 files changed, 2 insertions(+), 2 deletions(-)
>> >>
>> >> diff --git a/configure.ac b/configure.ac
>> >> index 1ca3974..fd7df47 100644
>> >> --- a/configure.ac
>> >> +++ b/configure.ac
>> >> @@ -273,7 +273,7 @@ dnl
>> >===========================================================================
>> >>  dnl Check for Loongson Multimedia Instructions
>> >>
>> >>  if test "x$LS_CFLAGS" = "x" ; then
>> >> -    LS_CFLAGS="-march=loongson2f"
>> >> +    LS_CFLAGS="-mloongson-mmi"
>> >>  fi
>> >>
>
>somebody told me that the opcode of MMI on 2F and 3A is different.
>So which set of opcode will -mloongson-mmi generate?
>
>> >
>> >As I know, somebody are still using 2F, such as Gentoo.
>> >This change will break these distributions.
>> >
>> >Keep compatible please.
>> >
>> Thank you for you reminder. Are you sure this patch will cause break on 2F?
>> In my opinion, use these FLAGS is aim to compile MMI instructions.
>> From this point, '-mloongson-mmi' may be more appropriate..
>>
>>
>
Okay, will keep compatible and update the patch.