From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 40888 invoked by alias); 21 Jul 2015 13:28:54 -0000 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 Received: (qmail 40553 invoked by uid 48); 21 Jul 2015 13:28:49 -0000 From: "pinskia at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/66946] Spurious uninitialized warning Date: Tue, 21 Jul 2015 13:28:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: tree-optimization X-Bugzilla-Version: 6.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: pinskia at gcc dot gnu.org X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2015-07/txt/msg01809.txt.bz2 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66946 --- Comment #2 from Andrew Pinski --- Comment on attachment 36021 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36021 minimal example written == ((wchar_t) 0xfffd) Will ever be true or is there some sign extending going on which causes this to be false for the default case?