From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 7416 invoked by alias); 4 Apr 2011 10:52:50 -0000 Received: (qmail 7406 invoked by uid 22791); 4 Apr 2011 10:52:49 -0000 X-SWARE-Spam-Status: No, hits=-2.8 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, 04 Apr 2011 10:51:55 +0000 From: "Joost.VandeVondele at pci dot uzh.ch" To: gcc-bugs@gcc.gnu.org Subject: [Bug fortran/48412] [4.7 Regression] CP2K miscompiled due to some Fortran frontend pass X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: fortran X-Bugzilla-Keywords: wrong-code X-Bugzilla-Severity: normal X-Bugzilla-Who: Joost.VandeVondele at pci dot uzh.ch X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 4.7.0 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 Date: Mon, 04 Apr 2011 10:52:00 -0000 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: 2011-04/txt/msg00269.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48412 --- Comment #4 from Joost VandeVondele 2011-04-04 10:50:57 UTC --- reduced testcase .... aborts at -O1, goes fine at -O0. Thanks for implementing the warning, without this, it would have been very difficult to find. INTEGER FUNCTION S1(m,ma,lx) INTEGER :: m,ma,lx IF (((m < 0).AND.(MODULO(ABS(ma-lx),2) == 1)).OR.& ((m > 0).AND.(MODULO(ABS(ma-lx),2) == 0))) THEN S1=1 ELSE S1=0 ENDIF END FUNCTION INTEGER :: s1 IF (S1(1,2,1).NE.0) CALL ABORT() END