From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 4929 invoked by alias); 19 May 2011 12:23:52 -0000 Received: (qmail 4919 invoked by uid 22791); 19 May 2011 12:23:51 -0000 X-SWARE-Spam-Status: No, hits=-2.7 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00 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, 19 May 2011 12:23:37 +0000 From: "ro at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/49062] New: [4.7 regression] Many C++ tests ICE on Tru64 UNIX: non-DECL_ONE_ONLY node in a same_comdat_group list X-Bugzilla-Reason: CC X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: middle-end X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: ro 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-Changed-Fields: Message-ID: X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated Content-Type: text/plain; charset="UTF-8" MIME-Version: 1.0 Date: Thu, 19 May 2011 12:29:00 -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 X-SW-Source: 2011-05/txt/msg01598.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49062 Summary: [4.7 regression] Many C++ tests ICE on Tru64 UNIX: non-DECL_ONE_ONLY node in a same_comdat_group list Product: gcc Version: 4.7.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: middle-end AssignedTo: unassigned@gcc.gnu.org ReportedBy: ro@gcc.gnu.org CC: hubicka@gcc.gnu.org Host: alpha-dec-osf5.1b Target: alpha-dec-osf5.1b Build: alpha-dec-osf5.1b Between 20110502 and 20110518, many C++ tests stated to ICE on Tru64 UNIX (Alpha/ECOFF without COMDAT support), e.g. FAIL: g++.dg/torture/covariant-1.C -O0 (internal compiler error) FAIL: g++.dg/torture/covariant-1.C -O0 (test for excess errors) Excess errors: /vol/gcc/src/hg/trunk/local/gcc/testsuite/g++.dg/torture/covariant-1.C:33:1: error: non-DECL_ONE_ONLY node in a same_comdat_group list AB* AB::_ZTchn8_h8_N2AB7getThisEv()/4 @166940 (asm: _ZTchn8_h8_N2AB7getThisEv) (same comdat group as AB* AB::_ZTch0_h8_N2AB7getThisEv()/3) availability:available analyzed needed address_taken externally_visible finalized asm_written thunk of AB* AB::_ZTch0_h8_N2AB7getThisEv() (asm: _ZTch0_h8_N2AB7getThisEv) fixed offset -8 virtual value 0 has virtual offset 0) called by: calls: AB* AB::_ZTch0_h8_N2AB7getThisEv()/3 (1.00 per call) References: Refering this function: var:int (* AB::_ZTV2AB [6])(...) (addr) /vol/gcc/src/hg/trunk/local/gcc/testsuite/g++.dg/torture/covariant-1.C:33:1: internal compiler error: verify_cgraph_node failed This is almost certainly due to this patch: 2011-05-06 Jan Hubicka * cgraph.c (cgraph_add_thunk): Create real function node instead of alias node; finalize it and mark needed/reachale; arrange visibility to be right and add it into the corresponding same comdat group list. (dump_cgraph_node): Dump thunks. Please fix. Rainer