From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 28486 invoked by alias); 25 Dec 2005 01:02:35 -0000 Received: (qmail 28474 invoked by uid 48); 25 Dec 2005 01:02:34 -0000 Date: Sun, 25 Dec 2005 01:02:00 -0000 Message-ID: <20051225010234.28473.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug target/25500] [4.0/4.1/4.2 Regression]: SSE2 vectorized code is many times slower on 4.x.x than on 3.4.4 In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "pinskia at gcc dot gnu dot org" Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org X-SW-Source: 2005-12/txt/msg02492.txt.bz2 List-Id: ------- Comment #12 from pinskia at gcc dot gnu dot org 2005-12-25 01:02 ------- Confirmed, it really only effects i386/i486 code (maybe i586 also but I did not try that). The only thing I can think is to change MOVE_COST for those subtargets or just have PR 14295 fixed. -- pinskia at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Ever Confirmed|0 |1 GCC target triplet| |i386-*-* Keywords| |missed-optimization, ssemmx Known to fail| |4.0.0 4.1.0 4.2.0 Known to work| |3.4.0 Last reconfirmed|0000-00-00 00:00:00 |2005-12-25 01:02:34 date| | Summary|REGREGRESSION: SSE2 |[4.0/4.1/4.2 Regression]: |vectorized code is many |SSE2 vectorized code is many |times slower on 4.x.x than |times slower on 4.x.x than |on 3.4.4 |on 3.4.4 Target Milestone|--- |4.0.3 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25500