On 2017-11-10 03:11, James Almer wrote:
> On 11/9/2017 8:58 AM, James Darnley wrote:
>> @@ -154,6 +155,13 @@ int ff_get_cpu_flags_x86(void)
>> if (ebx & 0x0100)
>> rval |= AV_CPU_FLAG_BMI2;
>> }
>> +#if HAVE_AVX512 /* F, CD, BW, DQ, VL */
>
> Nit: Maybe m
On 11/9/2017 8:58 AM, James Darnley wrote:
> ---
> I've changed this patch slightly because I discovered that it would cause an
> illegal instruction exception on much older processors (probably all without
> AVX). I was running xgetbv() almost uncontitionally. Now it is a little more
> like what
---
I've changed this patch slightly because I discovered that it would cause an
illegal instruction exception on much older processors (probably all without
AVX). I was running xgetbv() almost uncontitionally. Now it is a little more
like what is the in x264 patch.
libavutil/x86/cpu.c | 12 +++
