[PATCH RFC] X86_64 Avx2 Detection

[Ondřej Bílka]

On Wed, Apr 16, 2014 at 11:08:45PM -0400, ling.ma.program@gmail.com wrote:
> From: Sihai Yao <sihai.ysh@alibaba-inc.com>
> 
> This patch sets bit_AVX2_Usable of __cpu_features.feature by
> checking COMMON_CPUID_INDEX_7 for Haswell. Architecture related assembler
> file can use this bit to determine calling path.
> 
> ---
> This version removed FEATURE_INDEX_7 in Changelog and rewrote it
> in proper foramt Thanks H.J.
> 
I am also ok with this. H.J. could you commit this if you do not have
more objections?