From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 9286 invoked by alias); 17 Aug 2009 00:39:07 -0000 Received: (qmail 9278 invoked by uid 22791); 17 Aug 2009 00:39:07 -0000 X-SWARE-Spam-Status: No, hits=-0.5 required=5.0 tests=AWL,BAYES_00,SARE_SUB_ENC_UTF8,SPF_PASS X-Spam-Check-By: sourceware.org Received: from mailout1.go2.pl (HELO mailout1.go2.pl) (193.17.41.11) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Mon, 17 Aug 2009 00:39:00 +0000 Received: from mailout1.go2.pl (unknown [10.0.0.105]) by mailout1.go2.pl (Postfix) with ESMTP id 4271F5F0010 for ; Mon, 17 Aug 2009 02:38:58 +0200 (CEST) Received: from o2.pl (unknown [10.0.0.140]) by mailout1.go2.pl (Postfix) with SMTP for ; Mon, 17 Aug 2009 02:38:57 +0200 (CEST) Subject: =?UTF-8?Q?"-fno-unswitch-loops"_option_have_no_effect=3F?= From: =?UTF-8?Q?ami=5Fstuff?= To: gcc@gcc.gnu.org Mime-Version: 1.0 Message-ID: <5dd91bc1.7ff0289a.4a88a6a0.1e15f@o2.pl> Date: Mon, 17 Aug 2009 07:19:00 -0000 X-Originator: 212.67.149.145 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-IsSubscribed: yes Mailing-List: contact gcc-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-owner@gcc.gnu.org X-SW-Source: 2009-08/txt/msg00276.txt.bz2 Hi, I found out that when I use "-fno-unswitch-loops" option, it have no effect= - loops are unswitched anyway: -O3 -fno-unswitch-loops Because of that to avoid -funswitch-loops optimization I must use something= like this: -O2 -finline-functions -fpredictive-commoning -fgcse-after-reload -ftree-ve= ctorize=20 Is that a bug? Tested with GCC 4.4.1 (m68k). Regards