This is the mail archive of the
libc-alpha@sourceware.org
mailing list for the glibc project.
Re: [PATCH] Rename __memcmp_sse4_2 to __memcmp_sse4_1.
- From: Matt Turner <mattst88 at gmail dot com>
- To: Liubov Dmitrieva <liubov dot dmitrieva at gmail dot com>
- Cc: "H.J. Lu" <hjl dot tools at gmail dot com>, Andreas Jaeger <aj at suse dot com>, GNU C Library <libc-alpha at sourceware dot org>
- Date: Wed, 24 Jul 2013 15:22:48 -0700
- Subject: Re: [PATCH] Rename __memcmp_sse4_2 to __memcmp_sse4_1.
- References: <CAMe9rOreowCOEH+6zRaRNk_p9sYe3T2bhwPRbKpybW9cO0BhJA at mail dot gmail dot com> <1373419029-19125-1-git-send-email-mattst88 at gmail dot com> <51DCE51F dot 7000001 at suse dot com> <CAMe9rOqb3_DnhSh0jPh9=suJo5c+WjegxfDh1+1go6pY+7+PLA at mail dot gmail dot com> <CAEdQ38Go4UY=k==nYT_6S86-tsOoxOO=Wn=8_pNk+LkkxSxU_Q at mail dot gmail dot com> <CAMe9rOpgaNgGSdoM5rXdhLT-TqVEJjGMyHgKRP=t+2LrSTpFAA at mail dot gmail dot com> <CAEdQ38FBeyuJpQ1eSHnM5w=8MHD3cfFjgWekkXnRFHO+Aathnw at mail dot gmail dot com> <CAMe9rOompuMMzQm+RX=ejoPMX0uWmXarvSZa_fp-Fi1p_-8o1Q at mail dot gmail dot com> <CAHjhQ91+RSKU=1F4vQ1XrJ=1j1wAv6HuQJh_s9BzcBOOTP8BDg at mail dot gmail dot com>
On Thu, Jul 11, 2013 at 7:07 AM, Liubov Dmitrieva
<liubov.dmitrieva@gmail.com> wrote:
> My Silvermont patch in the latest edition doesn't touch memcmp and
> wmemcmp at all because I didn't see good boost from switching SSE42
> off for these 2 functions.
> Now I see why. There are no SSE42 instruction there. :)
> The patch looks good. I will just check performance regressions for Penryn.
Any performance numbers?