From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 32720 invoked by alias); 19 Feb 2014 06:30:24 -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 32689 invoked by uid 55); 19 Feb 2014 06:30:21 -0000 From: "mpolacek at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug c/60195] Strange warnings using atomic types Date: Wed, 19 Feb 2014 06:30:00 -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: 4.9.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: mpolacek at gcc dot gnu.org X-Bugzilla-Status: ASSIGNED 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/msg01913.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60195 --- Comment #2 from Marek Polacek --- Author: mpolacek Date: Wed Feb 19 06:29:49 2014 New Revision: 207873 URL: http://gcc.gnu.org/viewcvs?rev=207873&root=gcc&view=rev Log: PR c/60195 c/ * c-typeck.c (convert_lvalue_to_rvalue): Set TREE_NO_WARNING on tmp. Call mark_exp_read on exp.value. (build_atomic_assign): Set TREE_NO_WARNING on val and old. Set TREE_ADDRESSABLE on old instead of val. (emit_side_effect_warnings): Warn only if RHS has !TREE_NO_WARNING. testsuite/ * gcc.dg/pr60195.c: New test. Added: trunk/gcc/testsuite/gcc.dg/pr60195.c Modified: trunk/gcc/c/ChangeLog trunk/gcc/c/c-typeck.c trunk/gcc/testsuite/ChangeLog