From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 95934 invoked by alias); 22 Oct 2015 11:44:51 -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 95865 invoked by uid 55); 22 Oct 2015 11:44:46 -0000 From: "rguenth at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/61893] Constant folding inhibits trapping with -ftrapv Date: Thu, 22 Oct 2015 11:44:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: middle-end X-Bugzilla-Version: 4.9.1 X-Bugzilla-Keywords: wrong-code X-Bugzilla-Severity: normal X-Bugzilla-Who: rguenth at gcc dot gnu.org X-Bugzilla-Status: ASSIGNED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: rguenth 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: 2015-10/txt/msg01841.txt.bz2 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61893 --- Comment #4 from Richard Biener --- Author: rguenth Date: Thu Oct 22 11:44:11 2015 New Revision: 229170 URL: https://gcc.gnu.org/viewcvs?rev=229170&root=gcc&view=rev Log: 2015-10-22 Richard Biener PR middle-end/68046 PR middle-end/61893 * optabs.c (emit_libcall_block_1): Allow a NULL_RTX equiv. (expand_binop): For -ftrapv optabs do not record an REG_EQUAL note. (expand_unop): Likewise. * gcc.dg/torture/ftrapv-2.c: New testcase. Added: trunk/gcc/testsuite/gcc.dg/torture/ftrapv-2.c Modified: trunk/gcc/ChangeLog trunk/gcc/optabs.c trunk/gcc/testsuite/ChangeLog