From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 21840 invoked by alias); 29 Mar 2012 08:27:33 -0000 Received: (qmail 21746 invoked by uid 22791); 29 Mar 2012 08:27:31 -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; Thu, 29 Mar 2012 08:27:18 +0000 From: "rguenth at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/50708] Infinite loop between rshift_double and lshift_double if count is LONG_MIN Date: Thu, 29 Mar 2012 08:29:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: middle-end X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: rguenth at gcc dot gnu.org X-Bugzilla-Status: ASSIGNED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: rguenth 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: 2012-03/txt/msg02496.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50708 --- Comment #8 from Richard Guenther 2012-03-29 08:27:16 UTC --- Author: rguenth Date: Thu Mar 29 08:27:04 2012 New Revision: 185951 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=185951 Log: 2012-03-29 Richard Guenther PR middle-end/50708 * double-int.h (rshift_double): Remove. * double-int.c (lshift_double): Use absu_hwi to make count positive. (rshift_double): Make static, take unsigned count argument, remove handling of negative count argument. (double_int_rshift): Dispatch to lshift_double. Modified: trunk/gcc/ChangeLog trunk/gcc/double-int.c trunk/gcc/double-int.h