From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 1761 invoked by alias); 6 Oct 2011 23:33:08 -0000 Received: (qmail 1750 invoked by uid 22791); 6 Oct 2011 23:33:08 -0000 X-SWARE-Spam-Status: No, hits=-2.9 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, 06 Oct 2011 23:32:54 +0000 From: "andi-gcc at firstfloor dot org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/50644] New: ICE in set_is_used added today Date: Thu, 06 Oct 2011 23:33:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: tree-optimization X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: andi-gcc at firstfloor dot 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 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: 2011-10/txt/msg00398.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50644 Bug #: 50644 Summary: ICE in set_is_used added today Classification: Unclassified Product: gcc Version: 4.7.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization AssignedTo: unassigned@gcc.gnu.org ReportedBy: andi-gcc@firstfloor.org Since updating to today's trunk I get a ICE in set_is_used while building a LTOed linux kernel. Yesterday it didn't happen Running a bisect. Here's the crash #7 #8 set_is_used (var=) at +../../gcc/gcc/tree-flow-inline.h:562 #9 mark_all_vars_used_1 (var=) at +../../gcc/gcc/tree-ssa-live.c:379 #10 0x0000000000860b3e in walk_tree_1 (tp=0x2b11d2f00c00, func=0x7a4390 +, data=0x4296a40, pset=0x0, lh=0) at ../../gcc/gcc/tree.c:10448 #11 0x0000000000860f89 in walk_tree_1 (tp=0x2b11d2efacd0, func=0x7a4390 +, data=0x4296a40, pset=0x0, lh=0) at ../../gcc/gcc/tree.c:10526 #12 0x00000000007a4eb5 in mark_all_vars_used (data=, +expr_p=) at ../../gcc/gcc/tree-ssa-live.c:595 #13 remove_unused_locals (data=, expr_p=) at ../../gcc/gcc/tree-ssa-live.c:798 #14 0x000000000068c268 in execute_function_todo (data=Unhandled dwarf +expression opcode 0xf3 ) at ../../gcc/gcc/passes.c:1695 #15 0x000000000068d114 in execute_todo (flags=2132516) at +../../gcc/gcc/passes.c:1741 #16 0x000000000068f3ce in execute_one_ipa_transform_pass (ipa_pass=0x10ac6e0, +node=0x2b11e3116ea0) at ../../gcc/gcc/passes.c:1919 #17 execute_all_ipa_transforms (ipa_pass=0x10ac6e0, node=0x2b11e3116ea0) at +../../gcc/gcc/passes.c:1947 #18 0x000000000075fd20 in tree_rest_of_compilation (fndecl=0x2b11d2ed7300) at +../../gcc/gcc/tree-optimize.c:413 #19 0x000000000051b8a6 in cgraph_expand_function (node=0x2b11e3116ea0) at +../../gcc/gcc/cgraphunit.c:1805 #20 0x000000000051d182 in cgraph_output_in_order () at +../../gcc/gcc/cgraphunit.c:1962 #21 cgraph_optimize () at ../../gcc/gcc/cgraphunit.c:2136 ... (gdb) up #8 set_is_used (var=) at +../../gcc/gcc/tree-flow-inline.h:562 562 ann->used = true; (gdb) p ann $1 = (var_ann_d *) 0x0