From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 31447 invoked by alias); 14 Jul 2007 06:12:22 -0000 Received: (qmail 31398 invoked by uid 48); 14 Jul 2007 06:12:12 -0000 Date: Sat, 14 Jul 2007 06:12:00 -0000 Message-ID: <20070714061212.31397.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: "ebotcazou at gcc dot gnu 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/msg01573.txt.bz2 ------- Comment #16 from ebotcazou at gcc dot gnu dot org 2007-07-14 06:12 ------- > Change the assert to allow to == VN_TOP. > It can happen when we have aliasing issues, and we believe some piece > of memory/a value to be truly undefined. > This is what is happening in your case, and since your case is legal, > we must allow it. > It's likely a bug in the rest of the compiler, however, since we > should almost *never* end up with bare NMT's like that. OK, thanks. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32705