From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 2355 invoked by alias); 7 Dec 2013 00:55:09 -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 2300 invoked by uid 48); 7 Dec 2013 00:55:06 -0000 From: "burnus at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug sanitizer/59415] ICE segfault in verify_bb_vtables for g++ -S -fvtable-verify=std -fsanitize=null Date: Sat, 07 Dec 2013 00:55:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: sanitizer X-Bugzilla-Version: 4.9.0 X-Bugzilla-Keywords: ice-on-valid-code X-Bugzilla-Severity: normal X-Bugzilla-Who: burnus at gcc dot gnu.org X-Bugzilla-Status: UNCONFIRMED 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: 2013-12/txt/msg00584.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59415 --- Comment #1 from Tobias Burnus --- It fails in 575 verify_bb_vtables (basic_block bb) ... 589 if (gimple_code (stmt) == GIMPLE_CALL) 590 { 591 tree fncall = gimple_call_fn (stmt); 592 if (TREE_CODE (fncall) == OBJ_TYPE_REF) There, one has: (gdb) p debug_bb(bb) : UBSAN_NULL (this_1(D), 3); _2 = this_1(D)->_M_dataplus._M_p;