From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 13635 invoked by alias); 22 Oct 2013 06:10:35 -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 13580 invoked by uid 48); 22 Oct 2013 06:10:31 -0000 From: "ubizjak at gmail dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/58779] [4.7/4.8/4.9 Regression] wrong code at -O1 on x86_64-linux-gnu Date: Tue, 22 Oct 2013 06:10:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: target X-Bugzilla-Version: 4.9.0 X-Bugzilla-Keywords: wrong-code X-Bugzilla-Severity: normal X-Bugzilla-Who: ubizjak at gmail dot com X-Bugzilla-Status: ASSIGNED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: ubizjak at gmail dot com X-Bugzilla-Target-Milestone: 4.7.4 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cf_gcctarget bug_status assigned_to Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2013-10/txt/msg01571.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D58779 Uro=C5=A1 Bizjak changed: What |Removed |Added ---------------------------------------------------------------------------- Target|x86_64-*-linux-gnu |x86 Status|NEW |ASSIGNED Assignee|unassigned at gcc dot gnu.org |ubizjak at gmail do= t com --- Comment #4 from Uro=C5=A1 Bizjak --- (In reply to Andrew Pinski from comment #3) > Looks like this is a latent target bug as that change should not effect R= TL > at all (well the beginning expansion to RTL will be changed). Yes, it is target problem with overflow patterns. MINUS overflow patterns a= re invalid and should be removed. I have a patch in testing. >>From gcc-bugs-return-432428-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 22 06:40:29 2013 Return-Path: Delivered-To: listarch-gcc-bugs@gcc.gnu.org Received: (qmail 29506 invoked by alias); 22 Oct 2013 06:40:29 -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 Delivered-To: mailing list gcc-bugs@gcc.gnu.org Received: (qmail 29449 invoked by uid 55); 22 Oct 2013 06:40:23 -0000 From: "zeccav at gmail dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug fortran/58813] SIGSEGV in show_locus at error.c:310 Date: Tue, 22 Oct 2013 06:40:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: fortran X-Bugzilla-Version: 4.8.2 X-Bugzilla-Keywords: error-recovery, ice-on-invalid-code X-Bugzilla-Severity: normal X-Bugzilla-Who: zeccav at gmail dot com X-Bugzilla-Status: REOPENED 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: 2013-10/txt/msg01572.txt.bz2 Content-length: 347 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58813 --- Comment #6 from Vittorio Zecca --- I found that export MALLOC_PERTURB_=256 produces a quiet NaN. I'll use this one in my .bashrc It seems to me that the earlier symptom of malfunctioning is in symbol.c:5001 " dummies = sym->formal;" where sym points the wrong way.