From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 26923 invoked by alias); 5 Nov 2006 22:26:05 -0000 Received: (qmail 26889 invoked by alias); 5 Nov 2006 22:25:53 -0000 Date: Sun, 05 Nov 2006 22:26:00 -0000 Message-ID: <20061105222553.26888.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug tree-optimization/28778] [4.0/4.1 Regression] alias bug with cast and call clobbered In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "drow at gcc dot gnu dot org" 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 X-SW-Source: 2006-11/txt/msg00410.txt.bz2 List-Id: ------- Comment #47 from drow at gcc dot gnu dot org 2006-11-05 22:25 ------- Subject: Re: [4.0/4.1 Regression] alias bug with cast and call clobbered On Sun, Nov 05, 2006 at 10:17:16PM -0000, chuck at vertica dot com wrote: > Folks, can anyone please tell me if this is the same problem as I am seeing > here using gcc 4.0.2 for x86_64: No. Your code is simply invalid; this is a FAQ. > inline long long Vgetbytes(double f) { > return *reinterpret_cast(&f); > } "f" is an object of type double and may not be accessed through a pointer to "const long long". -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28778