From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 1519 invoked by alias); 1 Feb 2014 18:39:02 -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 1485 invoked by uid 48); 1 Feb 2014 18:38:59 -0000 From: "josh at joshtriplett dot org" To: gcc-bugs@gcc.gnu.org Subject: [Bug c/59850] Support sparse-style pointer address spaces (type attributes) Date: Sat, 01 Feb 2014 18:39:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: c X-Bugzilla-Version: unknown X-Bugzilla-Keywords: X-Bugzilla-Severity: enhancement X-Bugzilla-Who: josh at joshtriplett dot org X-Bugzilla-Status: UNCONFIRMED 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: 2014-02/txt/msg00050.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59850 --- Comment #4 from Josh Triplett --- (In reply to Tom Tromey from comment #3) > I noticed this behavior and was wondering if it is intended: > > bapiya. cat /tmp/q.c > __attribute__((force)) int *p; > int q = *p; > bapiya. sparse -Wno-decl /tmp/q.c > /tmp/q.c:2:10: warning: dereference of noderef expression > > > If so it would be good to know all the rules for "force" -- > I stumbled across this by accident but then was wondering > if there are other rules I don't know of. What version of sparse did you try that with? I can't seem to reproduce that with the current version, nor with older versions.