From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 19912 invoked by alias); 26 Nov 2005 07:44:39 -0000 Received: (qmail 19894 invoked by uid 48); 26 Nov 2005 07:44:36 -0000 Date: Sat, 26 Nov 2005 07:44:00 -0000 Message-ID: <20051126074436.19893.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug middle-end/22197] invalid "is" used uninitialized, should be "may be" In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "gdr 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: 2005-11/txt/msg03529.txt.bz2 List-Id: ------- Comment #4 from gdr at gcc dot gnu dot org 2005-11-26 07:44 ------- (In reply to comment #2) > Hmm, sort of. The call of g(i) also warns with "is used", although I > think it might deserve only a "may be used". But anyway I think that > this nevertheless has different causes. It's not the call creating > the problem, but the copy itself. yes, how a is copy not a use? At the very list, on modern architectures, it implies memory->register->memory traffic of garbage data. -- gdr at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |gdr at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22197