From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 16851 invoked by alias); 7 Mar 2007 20:23:16 -0000 Received: (qmail 16835 invoked by uid 48); 7 Mar 2007 20:23:07 -0000 Date: Wed, 07 Mar 2007 20:23:00 -0000 Message-ID: <20070307202307.16834.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug c/31075] 2's complement arithmetic (LLONG_MIN-1) works differently with and without optimization In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "pinskia 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: 2007-03/txt/msg00504.txt.bz2 ------- Comment #1 from pinskia at gcc dot gnu dot org 2007-03-07 20:23 ------- Signed integer overflow is undefined. Either use unsigned or -fwrapv. -- pinskia at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution| |INVALID http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31075