[D-runtime] Need support in core.cpuid for AVX detection

Alex xtzgzorex at gmail.com
Sun Jan 15 14:11:29 PST 2012


There seems to be commented out support for detecting AVX already:
https://github.com/D-Programming-Language/druntime/blob/master/src/core/cpuid.d#L275

Any reason this isn't enabled?

Regards,
Alex

On Sun, Jan 15, 2012 at 11:08 PM, Alex <xtzgzorex at gmail.com> wrote:
> For what it's worth, bit 28 of ECX indicates whether the CPU has AVX
> (for the cpuid instruction).
>
> Regards,
> Alex
>
> On Sun, Jan 15, 2012 at 11:04 PM, Walter Bright <walter at digitalmars.com> wrote:
>> http://en.wikipedia.org/wiki/Advanced_Vector_Extensions#CPUs_with_AVX
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