From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 24968 invoked by alias); 25 Apr 2005 00:42:28 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Received: (qmail 24930 invoked by alias); 25 Apr 2005 00:42:24 -0000 Date: Mon, 25 Apr 2005 00:42:00 -0000 Message-ID: <20050425004224.24929.qmail@sourceware.org> From: "jim dot morrison at gmail dot com" To: gcc-bugs@gcc.gnu.org In-Reply-To: <20050409213557.20922.pinskia@gcc.gnu.org> References: <20050409213557.20922.pinskia@gcc.gnu.org> Reply-To: gcc-bugzilla@gcc.gnu.org Subject: [Bug tree-optimization/20922] missed always false conditional X-Bugzilla-Reason: CC X-SW-Source: 2005-04/txt/msg03477.txt.bz2 List-Id: ------- Additional Comments From jim dot morrison at gmail dot com 2005-04-25 00:42 ------- Subject: Re: missed always false conditional On 25 Apr 2005 00:39:23 -0000, markus at oberhumer dot com wrote: > > > -- > What |Removed |Added > ---------------------------------------------------------------------------- > CC| |markus at oberhumer dot com > > > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20922 The overflow semantics are undefined for signed types in C/C++. Try with -ftrapv or -fwrapv if you need defined semantics for C/C++. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20922