[x264-devel] [PATCH] Add emulation for previously unsupported XOP fma instructions.

Jason Garrett-Glaser darkshikari at gmail.com
Sun Feb 23 01:03:42 CET 2014


On Sat, Feb 22, 2014 at 2:32 PM, James Almer <jamrial at gmail.com> wrote:
> On 22/02/14 7:24 PM, Jason Garrett-Glaser wrote:
>> On Sun, Feb 16, 2014 at 12:12 AM, James Almer <jamrial at gmail.com> wrote:
>>> Allow non-destructive emulation when the fourth argument
>>> is the same as the first by specifying a fifth argument
>>> to be used as temporary.
>>> ---
>>> I'm not replacing FMA_INSTR from x86inc because of SUMSUB2_AB
>>> calling pmacs** in lowercase, making it incompatible with
>>
>> Is there any chance you can just fix the caller?
>>
>> Jason
>
> You mean SUMSUB2_AB? The first argument is a lowercase letter that's used
> for both the XOP and non-XOP instructions. Other than adding an extra
> argument for the same letter in uppercase I'm not sure how to make it work

Use an %ifidn?

Jason


More information about the x264-devel mailing list