From owner-freebsd-hackers@FreeBSD.ORG Mon Mar 15 14:43:07 2004 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 988F816A4CE for ; Mon, 15 Mar 2004 14:43:07 -0800 (PST) Received: from mgr2.xmission.com (mgr2.xmission.com [198.60.22.202]) by mx1.FreeBSD.org (Postfix) with ESMTP id 7084143D1D for ; Mon, 15 Mar 2004 14:43:07 -0800 (PST) (envelope-from llewelly@xmission.com) Received: from [198.60.22.201] (helo=mgr1.xmission.com) by mgr2.xmission.com with esmtp (Exim 3.35 #1) id 1B30na-0006kR-02; Mon, 15 Mar 2004 15:43:06 -0700 Received: from [198.60.22.20] (helo=xmission.xmission.com) by mgr1.xmission.com with esmtp (Exim 4.30) id 1B30na-0005ni-Q8; Mon, 15 Mar 2004 15:43:06 -0700 Received: from llewelly by xmission.xmission.com with local (Exim 3.35 #1 (Debian)) id 1B30na-0007c9-00; Mon, 15 Mar 2004 15:43:06 -0700 To: Paul Seniura References: <20040315001052.GA20921@diogenis.ceid.upatras.gr> <20040313192357.GA10778@diogenis.ceid.upatras.gr> <20040315181625.7D59D5C29@techpc04.okladot.state.ok.us> From: llewelly@xmission.com Date: 15 Mar 2004 15:43:05 -0700 In-Reply-To: <20040315181625.7D59D5C29@techpc04.okladot.state.ok.us> Message-ID: Lines: 10 User-Agent: Gnus/5.0808 (Gnus v5.8.8) Emacs/21.2 MIME-Version: 1.0 Sender: Content-Type: text/plain; charset=us-ascii X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on mgr1.xmission.com X-Spam-Level: X-Spam-Status: No, hits=0.3 required=8.0 tests=NO_REAL_NAME autolearn=no version=2.63 X-SA-Exim-Mail-From: llewelly@xmission.com X-SA-Exim-Version: 3.1 (built Wed Aug 20 09:38:54 PDT 2003) X-SA-Exim-Scanned: Yes cc: freebsd-hackers@freebsd.org Subject: Re: GCC optimization bugs -- still there or a historic artifact? X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 15 Mar 2004 22:43:07 -0000 "Paul Seniura" writes: [snip] > And as for PPC, I've compiled things as high as -O5, > which is its limit I believe. ;) [snip] hm, no docs for -On, n > 3 at http://xrl.us/brh2 . Looking at the code: http://xrl.us/brh5 (search for 'optimize >= 3'), I don't see any evidence that -O5 is different from -O3. Though apple gcc is somewhat changed from fsf gcc, so maybe apple gcc does something different.