From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 9404 invoked by alias); 26 Jul 2012 09:00:28 -0000 Received: (qmail 9395 invoked by uid 22791); 26 Jul 2012 09:00:27 -0000 X-SWARE-Spam-Status: No, hits=-4.3 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00,KHOP_THREADED X-Spam-Check-By: sourceware.org Received: from localhost (HELO gcc.gnu.org) (127.0.0.1) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Thu, 26 Jul 2012 09:00:12 +0000 From: "rguenth at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/54098] [4.8 Regression] ICE on valid code Date: Thu, 26 Jul 2012 09:00:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: tree-optimization X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: rguenth 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: 4.8.0 X-Bugzilla-Changed-Fields: Status Last reconfirmed Target Milestone Summary Ever Confirmed Message-ID: In-Reply-To: References: X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated Content-Type: text/plain; charset="UTF-8" MIME-Version: 1.0 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 X-SW-Source: 2012-07/txt/msg01963.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54098 Richard Guenther changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |ASSIGNED Last reconfirmed| |2012-07-26 Target Milestone|--- |4.8.0 Summary|[tree-vrp] ICE on valid |[4.8 Regression] ICE on |code |valid code Ever Confirmed|0 |1 --- Comment #1 from Richard Guenther 2012-07-26 09:00:10 UTC --- Confirmed, mine. Program received signal SIGSEGV, Segmentation fault. 0x0000000000e03ca0 in compare_values_warnv (val1=0x0, val2=0x7ffff70bef00, strict_overflow_p=0x7fffffffd83b "") at /space/rguenther/src/svn/trunk/gcc/tree-vrp.c:1148 1148 gcc_assert (POINTER_TYPE_P (TREE_TYPE (val1)) (gdb) p val1 $1 = (tree) 0x0 lhs_vr is undefined in vrp_visit_phi_node at 7671 if (edges > 0 7672 && gimple_phi_num_args (phi) > 1 7673 && edges == old_edges) 7674 { 7675 int cmp_min = compare_values (lhs_vr->min, vr_result.min); 7676 int cmp_max = compare_values (lhs_vr->max, vr_result.max);