From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 7096 invoked by alias); 10 Apr 2004 22:04:06 -0000 Mailing-List: contact libc-hacker-help@sources.redhat.com; run by ezmlm Precedence: bulk List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libc-hacker-owner@sources.redhat.com Received: (qmail 7072 invoked from network); 10 Apr 2004 22:04:06 -0000 Received: from unknown (HELO Cantor.suse.de) (195.135.220.2) by sources.redhat.com with SMTP; 10 Apr 2004 22:04:06 -0000 Received: from hermes.suse.de (Hermes.suse.de [195.135.221.8]) (using TLSv1 with cipher EDH-RSA-DES-CBC3-SHA (168/168 bits)) (No client certificate requested) by Cantor.suse.de (Postfix) with ESMTP id 88C374320D1; Sat, 10 Apr 2004 23:05:33 +0200 (CEST) To: Ulrich Drepper Cc: libc-hacker@sources.redhat.com Subject: Re: INTERNAL_SYSCALL and function calls in arguments References: <20040409071510.GA21965@suse.de> <407825B0.1010401@redhat.com> <407846C3.9040902@redhat.com> From: Andreas Schwab X-Yow: I have accepted Provolone into my life! Date: Sat, 10 Apr 2004 22:04:00 -0000 In-Reply-To: <407846C3.9040902@redhat.com> (Ulrich Drepper's message of "Sat, 10 Apr 2004 12:10:59 -0700") Message-ID: User-Agent: Gnus/5.1006 (Gnus v5.10.6) Emacs/21.3.50 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-SW-Source: 2004-04/txt/msg00021.txt.bz2 Ulrich Drepper writes: > Andreas Schwab wrote: > >> Since the change only introduces temporary variables which the compiler >> would create internally anyway, the compiler is perfectly capable to >> optimize them away, and in all cases except sched_setaffinity the >> generated code is virtually identical. > > I haven't asked about theoretical results. You must assume I'm stupid > and don't know that this is possible. What are the concrete results? As I wrote above: virtually identical. In some cases even better. Andreas. -- Andreas Schwab, SuSE Labs, schwab@suse.de SuSE Linux AG, Maxfeldstraße 5, 90409 Nürnberg, Germany Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5 "And now for something completely different."