From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 362 invoked by alias); 27 Jul 2007 14:23:55 -0000 Received: (qmail 312 invoked by alias); 27 Jul 2007 14:23:43 -0000 Date: Fri, 27 Jul 2007 14:23:00 -0000 Message-ID: <20070727142343.311.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug target/11180] [avr-gcc] Optimization decrease performance of struct assignment. In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "eweddington at cso dot atmel 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: 2007-07/txt/msg02746.txt.bz2 ------- Comment #11 from eweddington at cso dot atmel dot com 2007-07-27 14:23 ------- Subject: RE: [avr-gcc] Optimization decrease performance of struct assignment. > ------- Comment #10 from dmixm at marine dot febras dot ru > 2007-07-27 01:24 ------- > Yes, results are: > > avr-gcc-3.3.6: O0 --> 75, O1,O2,O3,Os --> 79 > avr-gcc-4.2.1: O0 --> 109, O1,O2,O3,Os --> 79 > > The mistake is corrected? It is possible to tell and so as now > application of keys of optimization shortens a code. However, > "correction" does not improve quality of optimization, it only worsens > not optimized code. Agreed. But is this sufficient to close this bug report? Eric -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11180