From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 25112 invoked by alias); 30 Nov 2007 06:42:42 -0000 Received: (qmail 25063 invoked by uid 48); 30 Nov 2007 06:42:30 -0000 Date: Fri, 30 Nov 2007 06:42:00 -0000 Message-ID: <20071130064230.25062.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug target/32086] [4.3 Regression] 10% to 20% Performance Regression Between 4.1.3 and 4.3 In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "ubizjak at gmail dot com" Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org X-SW-Source: 2007-11/txt/msg03009.txt.bz2 ------- Comment #3 from ubizjak at gmail dot com 2007-11-30 06:42 ------- (In reply to comment #1) > w/ -fvect-cost-model: > user 0m46.439s Looking a bit into generated code, it looks that -fect-cost-model effectively disables all interesting vectorizations, effectively -fno-tree-vectorize. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32086