From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 28319 invoked by alias); 12 Dec 2014 19:01:29 -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 Received: (qmail 28250 invoked by uid 48); 12 Dec 2014 19:01:23 -0000 From: "hubicka at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug lto/64043] [5 Regression] ICE (segfault) with LTO: in tree_check/tree.h:2758 get_binfo_at_offset/tree.c:11914 Date: Fri, 12 Dec 2014 19:01:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: lto X-Bugzilla-Version: 5.0 X-Bugzilla-Keywords: ice-on-valid-code X-Bugzilla-Severity: normal X-Bugzilla-Who: hubicka at gcc dot gnu.org X-Bugzilla-Status: ASSIGNED X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: hubicka at gcc dot gnu.org X-Bugzilla-Target-Milestone: 5.0 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: 2014-12/txt/msg01475.txt.bz2 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64043 --- Comment #8 from Jan Hubicka --- The following patch should help. Still need to work out why flag_devirtualize is set at final link - it should not Index: tree.c =================================================================== --- tree.c (revision 218658) +++ tree.c (working copy) @@ -11870,6 +11870,11 @@ if (TREE_CODE (target) == FUNCTION_TYPE) return false; gcc_checking_assert (TREE_CODE (target) == METHOD_TYPE); + /* If we do not have BINFO associated, it means that type was built + without devirtualization enabled. Do not consider this a virtual + call. */ + if (!TYPE_BINFO (obj_type_ref_class (target))) + return false; return true; }