From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sun, 22 Sep 2002 16:47:05 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sun, 22 Sep 2002 16:47:05 -0400 Received: from [195.39.17.254] ([195.39.17.254]:10880 "EHLO Elf.ucw.cz") by vger.kernel.org with ESMTP id ; Sun, 22 Sep 2002 16:47:04 -0400 Date: Sun, 22 Sep 2002 01:33:46 +0000 From: Pavel Machek To: "Richard B. Johnson" Cc: Richard Henderson , Brian Gerst , Petr Vandrovec , dvorak , linux-kernel@vger.kernel.org Subject: Re: Syscall changes registers beyond %eax, on linux-i386 Message-ID: <20020922013346.A39@toy.ucw.cz> References: <20020919124117.A22720@twiddle.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 1.0.1i In-Reply-To: ; from root@chaos.analogic.com on Thu, Sep 19, 2002 at 03:53:24PM -0400 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi! > It's a problem with a 'general purpose' compiler that wants to > be "all things" to all people. If somebody made a gcc-compatible > compiler, tuned to the ix86 characteristics, I think we could > cut the extra instructions by at least 1/2, maybe more. Remember pgcc? And btw cutting instructions by 1/2might look nice but unless you can keep it as fast as it was, its useless. Pavel -- Philips Velo 1: 1"x4"x8", 300gram, 60, 12MB, 40bogomips, linux, mutt, details at http://atrey.karlin.mff.cuni.cz/~pavel/velo/index.html.