Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756407AbXEVTqZ (ORCPT ); Tue, 22 May 2007 15:46:25 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1759998AbXEVTqN (ORCPT ); Tue, 22 May 2007 15:46:13 -0400 Received: from mailer.gwdg.de ([134.76.10.26]:39878 "EHLO mailer.gwdg.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S935400AbXEVTqL (ORCPT ); Tue, 22 May 2007 15:46:11 -0400 Date: Tue, 22 May 2007 21:44:32 +0200 (MEST) From: Jan Engelhardt To: Nitin Gupta cc: Andrey Panin , linux-kernel@vger.kernel.org, Richard Purdie Subject: Re: [RFC] LZO1X de/compression support In-Reply-To: <4cefeab80705220208w2200b2f1x1d7a8c7e0c01dfb9@mail.gmail.com> Message-ID: References: <4cefeab80705180258g516a6f92w15a49e666dd62b66@mail.gmail.com> <20070518111107.GA27003@pazke.donpac.ru> <4cefeab80705220208w2200b2f1x1d7a8c7e0c01dfb9@mail.gmail.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Spam-Report: Content analysis: 0.0 points, 6.0 required _SUMMARY_ Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 895 Lines: 24 On May 22 2007 14:38, Nitin Gupta wrote: > On 5/18/07, Andrey Panin wrote: >> On 138, 05 18, 2007 at 03:28:31PM +0530, Nitin Gupta wrote: >> > + register const unsigned char *ip; >> >> register keyword is meaningless for today's compiler. > > But can we assume that gcc is being used? What if we use compiler for > which it does matter (can't give example for this...)? How dumb must a compiler be? Although I cannot give an example either, the register keyword MAY 'clog up' a register, making it harder for cc to optimally use the whole register set. Imagine we had even less regs than the x86(_32) already does. Jan -- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/