From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 79065 invoked by alias); 5 Nov 2015 18:07:47 -0000 Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-patches-owner@gcc.gnu.org Received: (qmail 79056 invoked by uid 89); 5 Nov 2015 18:07:47 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-2.3 required=5.0 tests=AWL,BAYES_00,RCVD_IN_DNSWL_LOW,SPF_PASS autolearn=ham version=3.3.2 X-HELO: relay1.mentorg.com Received: from relay1.mentorg.com (HELO relay1.mentorg.com) (192.94.38.131) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Thu, 05 Nov 2015 18:07:46 +0000 Received: from nat-ies.mentorg.com ([192.94.31.2] helo=SVR-IES-FEM-01.mgc.mentorg.com) by relay1.mentorg.com with esmtp id 1ZuOwp-0002F1-Fl from joseph_myers@mentor.com ; Thu, 05 Nov 2015 10:07:43 -0800 Received: from digraph.polyomino.org.uk (137.202.0.76) by SVR-IES-FEM-01.mgc.mentorg.com (137.202.0.104) with Microsoft SMTP Server id 14.3.224.2; Thu, 5 Nov 2015 18:07:42 +0000 Received: from jsm28 (helo=localhost) by digraph.polyomino.org.uk with local-esmtp (Exim 4.82) (envelope-from ) id 1ZuOwm-00063Z-PD; Thu, 05 Nov 2015 18:07:40 +0000 Date: Thu, 05 Nov 2015 18:07:00 -0000 From: Joseph Myers To: Martin Sebor CC: Alexander Monakov , Gcc Patch List Subject: Re: [PATCH] clarify documentation of -Q --help=optimizers In-Reply-To: <563B960E.20508@gmail.com> Message-ID: References: <56299713.6040204@gmail.com> <562997A9.3090203@gmail.com> <563A9A31.5060306@gmail.com> <563B7CA1.6080801@gmail.com> <563B960E.20508@gmail.com> User-Agent: Alpine 2.10 (DEB 1266 2009-07-14) MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" X-SW-Source: 2015-11/txt/msg00510.txt.bz2 On Thu, 5 Nov 2015, Martin Sebor wrote: > > There are several options marked Optimization that are actually matters of > > language semantics that I don't think have anything to do with -O options, > > e.g. -fexceptions and -fcx-limited-range. The Optimization tag really > > just means that it's saved and restored under certain circumstances. > > Both -fexceptions and -fcx-limited-range are reported as disabled > at -O0, so they're not the examples I'm looking for. The set of But reporting that is nonsense. They are disabled by default for C. If you pass the option on the command line, it's enabled regardless of -O options, and should not be reported as disabled. -- Joseph S. Myers joseph@codesourcery.com