From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 30592 invoked by alias); 13 Oct 2011 12:05:45 -0000 Received: (qmail 30565 invoked by uid 22791); 13 Oct 2011 12:05:43 -0000 X-SWARE-Spam-Status: No, hits=-0.3 required=5.0 tests=AWL,BAYES_00,DKIM_ADSP_CUSTOM_MED,FREEMAIL_FROM,NML_ADSP_CUSTOM_MED,RCVD_NUMERIC_HELO,RP_MATCHES_RCVD,SPF_HELO_PASS,T_TO_NO_BRKTS_FREEMAIL X-Spam-Check-By: sourceware.org Received: from lo.gmane.org (HELO lo.gmane.org) (80.91.229.12) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Thu, 13 Oct 2011 12:05:10 +0000 Received: from list by lo.gmane.org with local (Exim 4.69) (envelope-from ) id 1REK28-0003RZ-80 for gcc-help@gcc.gnu.org; Thu, 13 Oct 2011 14:05:08 +0200 Received: from 94.72.250.67 ([94.72.250.67]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 13 Oct 2011 14:05:08 +0200 Received: from mw_phil by 94.72.250.67 with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 13 Oct 2011 14:05:08 +0200 To: gcc-help@gcc.gnu.org From: MikeW Subject: Re: gcc optimises out test of value in register-only loop Date: Thu, 13 Oct 2011 12:05:00 -0000 Message-ID: References: <4E96CD98.5070704@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit User-Agent: Loom/3.14 (http://gmane.org/) X-IsSubscribed: yes Mailing-List: contact gcc-help-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-help-owner@gcc.gnu.org X-SW-Source: 2011-10/txt/msg00092.txt.bz2 Andrew Haley redhat.com> writes: > > On 10/13/2011 12:23 PM, MikeW wrote: ... > > I don't think so. If every there was a case for "use asm", it's surely > this. > > Andrew. > > PS Thanks, Andrew.