From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 4787 invoked by alias); 19 Jan 2004 23:46:08 -0000 Mailing-List: contact gcc-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-owner@gcc.gnu.org Received: (qmail 4779 invoked from network); 19 Jan 2004 23:46:07 -0000 Received: from unknown (HELO mail.codesourcery.com) (65.74.133.9) by sources.redhat.com with SMTP; 19 Jan 2004 23:46:07 -0000 Received: (qmail 28347 invoked from network); 19 Jan 2004 23:46:01 -0000 Received: from taltos.codesourcery.com (zack@66.92.218.83) by mail.codesourcery.com with DES-CBC3-SHA encrypted SMTP; 19 Jan 2004 23:46:01 -0000 Received: by taltos.codesourcery.com (sSMTP sendmail emulation); Mon, 19 Jan 2004 15:46:01 -0800 From: "Zack Weinberg" To: kenner@vlsi1.ultra.nyu.edu (Richard Kenner) Cc: gcc@gcc.gnu.org Subject: Re: Can we speed up the gcc_target structure? References: <10401192344.AA03475@vlsi1.ultra.nyu.edu> Date: Mon, 19 Jan 2004 23:46:00 -0000 In-Reply-To: <10401192344.AA03475@vlsi1.ultra.nyu.edu> (Richard Kenner's message of "Mon, 19 Jan 04 18:44:51 EST") Message-ID: <8765f7pkna.fsf@egil.codesourcery.com> User-Agent: Gnus/5.110002 (No Gnus v0.2) Emacs/21.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-SW-Source: 2004-01/txt/msg01412.txt.bz2 kenner@vlsi1.ultra.nyu.edu (Richard Kenner) writes: > Wasn't Michael Matz just saying that regclass.c needed a major rework > anyway, or the new register allocator would never be able to replace > the old? I don't know what his design looks like, or even if he has > one yet, but surely there is a simpler way to structure this, that > doesn't involve lots of little tiny macros. > > I don't see what that has to do with the specification of classes, which > are attributes of the machine. Those macros are used by far more than > just regclass.c and the register allocator ... I'm speculating that a simpler specification of classes could be informed by the needs of the new register allocator. That's all. zw