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From: "yuri at tsoft dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/25500] REGREGRESSION: SSE2 vectorized code is many times slower on 4.x.x than on 3.4.4
Date: Tue, 20 Dec 2005 06:51:00 -0000 [thread overview]
Message-ID: <20051220065145.10059.qmail@sourceware.org> (raw)
In-Reply-To: <bug-25500-6649@http.gcc.gnu.org/bugzilla/>
------- Comment #9 from yuri at tsoft dot com 2005-12-20 06:51 -------
Subject: Re: REGREGRESSION: SSE2 vectorized code is many
times slower on 4.x.x than on 3.4.4
-----------------------------------
Using built-in specs.
Configured with: FreeBSD/i386 system compiler
Thread model: posix
gcc version 3.4.4 [FreeBSD] 20050518
-----------------------------------
g++ -v (4.0.2)
Using built-in specs.
Target: i386-unknown-freebsd6.0
Configured with: ../gcc-4.0.2/configure --prefix=/usr/local/gcc-4.0.2
Thread model: posix
gcc version 4.0.2
pinskia at gcc dot gnu dot org wrote:
>------- Comment #8 from pinskia at gcc dot gnu dot org 2005-12-20 06:36 -------
>Can you show what the output of "gcc -v" for the 3.4 compiler and the 4.0
>compiler?
>
>This looks like just a different using arch by default.
>
>a Compiler compiled for i686 by default gives the good code but code compiled
>for i386 give bad code.
>
>
>
>
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25500
next prev parent reply other threads:[~2005-12-20 6:51 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-12-20 5:25 [Bug c/25500] New: " yuri at tsoft dot com
2005-12-20 5:34 ` [Bug c/25500] " yuri at tsoft dot com
2005-12-20 5:55 ` [Bug target/25500] " pinskia at gcc dot gnu dot org
2005-12-20 6:01 ` yuri at tsoft dot com
2005-12-20 6:03 ` yuri at tsoft dot com
2005-12-20 6:19 ` yuri at tsoft dot com
2005-12-20 6:33 ` pinskia at gcc dot gnu dot org
2005-12-20 6:36 ` pinskia at gcc dot gnu dot org
2005-12-20 6:51 ` yuri at tsoft dot com [this message]
2005-12-20 6:55 ` pinskia at gcc dot gnu dot org
2005-12-20 7:40 ` yuri at tsoft dot com
2005-12-25 1:02 ` [Bug target/25500] [4.0/4.1/4.2 Regression]: " pinskia at gcc dot gnu dot org
2005-12-28 16:53 ` jakub at gcc dot gnu dot org
2006-01-15 22:13 ` [Bug target/25500] [4.0/4.1/4.2 Regression]: SSE2 vectorized code is " mmitchel at gcc dot gnu dot org
2006-02-24 0:31 ` mmitchel at gcc dot gnu dot org
2006-05-25 2:38 ` [Bug target/25500] [4.0/4.1/4.2 Regression]: SSE2 vectorized code is slower on 4.x.x than previous mmitchel at gcc dot gnu dot org
2006-07-05 9:50 ` pinskia at gcc dot gnu dot org
2006-08-07 7:55 ` bonzini at gnu dot org
2006-08-07 7:59 ` bonzini at gnu dot org
2006-08-07 15:36 ` pinskia at gcc dot gnu dot org
2006-08-17 8:16 ` bonzini at gnu dot org
2006-08-18 16:16 ` bonzini at gnu dot org
2006-11-12 8:07 ` [Bug target/25500] [4.0/4.1/4.2/4.3 " pinskia at gcc dot gnu dot org
2006-11-15 0:38 ` pinskia at gcc dot gnu dot org
2006-11-20 20:29 ` pinskia at gcc dot gnu dot org
2006-11-20 20:29 ` pinskia at gcc dot gnu dot org
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