From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 12062 invoked by alias); 20 Dec 2005 05:55:45 -0000 Received: (qmail 12052 invoked by uid 48); 20 Dec 2005 05:55:43 -0000 Date: Tue, 20 Dec 2005 05:55:00 -0000 Message-ID: <20051220055543.12051.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug target/25500] REGREGRESSION: 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/msg02079.txt.bz2 List-Id: ------- Comment #2 from pinskia at gcc dot gnu dot org 2005-12-20 05:55 ------- I cannot reproduce this on an Athlon 64 running in either 32 or 64 bit mode. Everything I tried shows that 4.x is actually faster than 3.4.4. -- pinskia at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Component|c |target Summary|REGRESSION: SSE2 vectorized |REGREGRESSION: SSE2 |code is many times slower on|vectorized code is many |4.x.x than on 3.4.4 |times slower on 4.x.x than | |on 3.4.4 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25500