From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 3873 invoked by alias); 11 Jul 2007 22:21:04 -0000 Received: (qmail 3807 invoked by alias); 11 Jul 2007 22:20:54 -0000 Date: Wed, 11 Jul 2007 22:21:00 -0000 Message-ID: <20070711222054.3806.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug tree-optimization/32705] [4.3 regression] ICE in set_ssa_val_to, at tree-ssa-sccvn.c:1022 In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "dberlin at dberlin dot org" 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: 2007-07/txt/msg01337.txt.bz2 ------- Comment #6 from dberlin at gcc dot gnu dot org 2007-07-11 22:20 ------- Subject: Re: [4.3 regression] ICE in set_ssa_val_to, at tree-ssa-sccvn.c:1022 The only way i can see this happening is if you have a truly uninitialized variable, or there is something we have missed. Does this function have cfun->static_chain_decl being used, and we have a copy of that here? It is theoretically safe to call set_ssa_to_val with to == vn_top, but it's probably a bug somewhere, and i'd rather eliminate the bug cases before turning it off. On 11 Jul 2007 20:10:10 -0000, ebotcazou at gcc dot gnu dot org wrote: > > > ------- Comment #5 from ebotcazou at gcc dot gnu dot org 2007-07-11 20:10 ------- > > Can someone paste the output of debug_generic_stmt (to) and > > debug_tree(to) at the point of failure? > > (gdb) p debug_tree(to) > type align 8 symtab 0 alias set 36 canonical type 0x55716804 > pointer_to_this > > used ignored VOID file ../c87b26b.adb line 4 > align 8> > $4 = void > (gdb) p debug_generic_stmt(to) > vn_top.181 > > > -- > > > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32705 > > -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32705