[PATCH] x86_64: memcpy/memmove family optimized with AVX512

[H.J. Lu]

On Fri, Jan 15, 2016 at 2:24 PM, Florian Weimer <fweimer@redhat.com> wrote:
> On 01/15/2016 10:47 PM, Andrew Senkevich wrote:
>> diff --git a/sysdeps/x86_64/multiarch/memcpy_chk.S b/sysdeps/x86_64/multiarch/memcpy_chk.S
>> index 6476c62..a0d56d4 100644
>> --- a/sysdeps/x86_64/multiarch/memcpy_chk.S
>> +++ b/sysdeps/x86_64/multiarch/memcpy_chk.S
>> @@ -30,7 +30,15 @@
>>  ENTRY(__memcpy_chk)
>>       .type   __memcpy_chk, @gnu_indirect_function
>>       LOAD_RTLD_GLOBAL_RO_RDX
>> -     leaq    __memcpy_chk_sse2(%rip), %rax
>> +#ifdef HAVE_AVX512_ASM_SUPPORT
>> +     HAS_ARCH_FEATURE (AVX512F_Usable)
>> +     jz      1f
>> +#    HAS_ARCH_FEATURE (Prefer_No_VZEROUPPER)
>> +#    jz      1f
>
> The two lines starting with “#” look somewhat out of place.  Is this
> really intended?
>

Looks like typo to me.

-- 
H.J.