From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 22127 invoked by alias); 17 Sep 2007 11:13:58 -0000 Received: (qmail 22023 invoked by uid 48); 17 Sep 2007 11:13:48 -0000 Date: Mon, 17 Sep 2007 11:13:00 -0000 Message-ID: <20070917111348.22022.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: "rask at gcc dot gnu dot org" 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: 2007-09/txt/msg01354.txt.bz2 ------- Comment #21 from rask at gcc dot gnu dot org 2007-09-17 11:13 ------- It's probably someting simple, see config.log. Like I said, the patch is a quick and dirty one and the AVR back end can use more work than that, most of which means deleting patterns. Examples: All and, ior, xor, one_cmpl and sign extend patterns larger than qimode, all zero_extend patterns, all movsi, movdi and such. Along with that all the output_xxx functions in avr.c that they use. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11180