From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-375992-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 18088 invoked by alias); 6 Dec 2011 11:41:20 -0000
Received: (qmail 18078 invoked by uid 22791); 6 Dec 2011 11:41:19 -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; Tue, 06 Dec 2011 11:41:07 +0000
From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/51245] [4.7 Regression] ICE in vn_reference_insert_pieces, at tree-ssa-sccvn.c:1983
Date: Tue, 06 Dec 2011 11:41:00 -0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: tree-optimization
X-Bugzilla-Keywords:
X-Bugzilla-Severity: normal
X-Bugzilla-Who: rguenth at gcc dot gnu.org
X-Bugzilla-Status: NEW
X-Bugzilla-Priority: P1
X-Bugzilla-Assigned-To: rguenth at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 4.7.0
X-Bugzilla-Changed-Fields:
Message-ID: <bug-51245-4-oF9rUHgtwe@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-51245-4@http.gcc.gnu.org/bugzilla/>
References: <bug-51245-4@http.gcc.gnu.org/bugzilla/>
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: <gcc-bugs.gcc.gnu.org>
List-Archive: <http://gcc.gnu.org/ml/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-help@gcc.gnu.org>
Sender: gcc-bugs-owner@gcc.gnu.org
X-SW-Source: 2011-12/txt/msg00558.txt.bz2

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51245

--- Comment #3 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-12-06 11:41:04 UTC ---
Author: rguenth
Date: Tue Dec  6 11:41:00 2011
New Revision: 182044

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=182044
Log:
2011-12-06  Richard Guenther  <rguenther@suse.de>

    PR tree-optimization/51245
    * tree-ssa-sccvn.c (vn_reference_lookup_or_insert_constant_for_pieces):
    New function.
    (vn_reference_lookup_3): Use it.  Properly valueize all refs
    we create.

    * gcc.dg/torture/pr51245.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr51245.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-sccvn.c