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Re: PATCH: Improve 32 bit strcat functions with SSE2/SSSE3

From: "H.J. Lu" <hjl dot tools at gmail dot com>
To: Ulrich Drepper <drepper at gmail dot com>
Cc: Dmitrieva Liubov <liubov dot dmitrieva at gmail dot com>, libc-alpha at sourceware dot org
Date: Tue, 19 Jul 2011 20:24:29 -0700
Subject: Re: PATCH: Improve 32 bit strcat functions with SSE2/SSSE3
References: <CAHjhQ92N1KXEuq4U1i+8GouLGCnt=L-PdS_MHYSjF5HqRxezcA@mail.gmail.com><CAOPLpQcpkYiK00EDUcOevsMkB3i_sZpa+gr5=BOhNdRtrKsGEg@mail.gmail.com>

On Tue, Jul 19, 2011 at 3:51 PM, Ulrich Drepper <drepper@gmail.com> wrote:
> On Fri, Jul 15, 2011 at 10:33, Dmitrieva Liubov
> <liubov.dmitrieva@gmail.com> wrote:
>> This patch improves 32 bit strcat functions with SSE2 and SSSE3.
>> Tested on Atom, Core 2, Core i5, Core i7. ?It improves performance by
>> up to 5X for strcat and 15x for strncat.
>
> I get a crash in noinl-tester with this patch. ?This is with a Sandy
> Brdige processor but any SSSE3-capable machine should show it.
>

I can't reproduce it on 64bit Fedora 15/Sandy Bridge with

CC="gcc -m32" CXX="g++ -m32" CFLAGS="-O2 -g -march=i686" ../configure
--enable-add-ons=nptl --prefix=/usr --without-cvs --enable-multi-arch
--target=i686-linux --build=i686-linux --host=i686-linux


-- 
H.J.

Follow-Ups:
- Re: PATCH: Improve 32 bit strcat functions with SSE2/SSSE3
  - From: Dmitrieva Liubov

References:
- PATCH: Improve 32 bit strcat functions with SSE2/SSSE3
  - From: Dmitrieva Liubov
- Re: PATCH: Improve 32 bit strcat functions with SSE2/SSSE3
  - From: Ulrich Drepper

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