From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 10567 invoked by alias); 4 May 2010 23:08:49 -0000 Received: (qmail 10494 invoked by uid 48); 4 May 2010 23:08:34 -0000 Date: Tue, 04 May 2010 23:08:00 -0000 Message-ID: <20100504230834.10493.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug middle-end/43987] [4.5 regression] type-punning causes broken binaries unless -O0 is used 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: 2010-05/txt/msg00384.txt.bz2 ------- Comment #4 from pinskia at gcc dot gnu dot org 2010-05-04 23:08 ------- >What is -fwrapv supposed to do? I Changes the behavior of signed integer overflow to be defined as wrapping rather than being undefined. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43987