From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 8642 invoked by alias); 28 Nov 2011 22:50:07 -0000 Received: (qmail 8625 invoked by uid 22791); 28 Nov 2011 22:50:06 -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; Mon, 28 Nov 2011 22:49:53 +0000 From: "bdavis at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug fortran/51338] [4.6/4.7 Regression] seg fault in gfc_dep_compare_expr with -O2 Date: Mon, 28 Nov 2011 23:10:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: fortran X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: bdavis at gcc dot gnu.org X-Bugzilla-Status: NEW X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: 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: 2011-11/txt/msg02721.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51338 --- Comment #5 from Bud Davis 2011-11-28 22:49:33 UTC --- Index: gcc/gcc/fortran/dependency.c =================================================================== --- gcc/gcc/fortran/dependency.c (revision 181789) +++ gcc/gcc/fortran/dependency.c (working copy) @@ -245,6 +245,10 @@ int i; gfc_expr *n1, *n2; + /* nothing to do here, move along */ + if (e1 == NULL && e2 == NULL) + return 0; + n1 = NULL; n2 = NULL;