On 24/03/14 11:28 AM, Diego Biurrun wrote:
> On Thu, Mar 20, 2014 at 03:37:56PM -0300, James Almer wrote:
>> --- a/libavcodec/x86/dcadsp.asm
>> +++ b/libavcodec/x86/dcadsp.asm
>> @@ -230,6 +230,14 @@ DCA_LFE_FIR 1
>>      mova         m12, [ptr1 + j + mmsize]
>>  %endif
>> +%if cpuflag(fma3)
>> +    fmaddps       m2, m6,  [win + %1 + j + 16 * 4], m2
>> +    fnmaddps      m1, m5,  [win + %1 + j], m1
>> +%if ARCH_X86_64
>> +    fmaddps       m8, m12, [win + %1 + j + mmsize + 16 * 4], m8
>> +    fnmaddps      m7, m11, [win + %1 + j + mmsize], m7
>> +%endif
>> +%else ; non-FMA
> 
> Doesn't FMA3 imply x86_64?
> 
> Diego

No, no simd extension so far implies x86_64. Not even the upcoming AVX512.
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