From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 26123 invoked by alias); 16 Oct 2002 13:39:22 -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 26038 invoked from network); 16 Oct 2002 13:39:21 -0000 Received: from unknown (HELO lacrosse.corp.redhat.com) (66.187.233.200) by sources.redhat.com with SMTP; 16 Oct 2002 13:39:21 -0000 Received: from free.redhat.lsd.ic.unicamp.br (aoliva2.cipe.redhat.com [10.0.1.156]) by lacrosse.corp.redhat.com (8.11.6/8.9.3) with ESMTP id g9GDbqP21139; Wed, 16 Oct 2002 09:37:56 -0400 Received: from free.redhat.lsd.ic.unicamp.br (localhost.localdomain [127.0.0.1]) by free.redhat.lsd.ic.unicamp.br (8.12.5/8.12.5) with ESMTP id g9GDbZjk004840; Wed, 16 Oct 2002 10:37:35 -0300 Received: (from aoliva@localhost) by free.redhat.lsd.ic.unicamp.br (8.12.5/8.12.5/Submit) id g9GDaS3C004822; Wed, 16 Oct 2002 10:36:28 -0300 To: "Maciej W. Rozycki" Cc: "H. J. Lu" , "David S. Miller" , rsandifo@redhat.com, linux-mips@linux-mips.org, gcc@gcc.gnu.org, binutils@sources.redhat.com Subject: Re: MIPS gas relaxation still doesn't work References: From: Alexandre Oliva Organization: GCC Team, Red Hat Date: Wed, 16 Oct 2002 07:47:00 -0000 In-Reply-To: Message-ID: User-Agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.2 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-SW-Source: 2002-10/txt/msg00947.txt.bz2 On Oct 16, 2002, "Maciej W. Rozycki" wrote: > On 15 Oct 2002, Alexandre Oliva wrote: >> Except that, with the current implementation of branch relaxation, >> when you enable it, each branch will mark the end of a frag, so the >> assembler will be effectively unable to fill delay slots anyway, since >> it won't bring instructions from the previous frag to the beginning of >> the new frag. > Too bad. But the marking could get disabled if ".set nomacro" was on for > a branch, couldn't it? Err... Yes, indeed, this is already the case, now that I think of it. Only when the branch is a relaxation candidate does it become the end of a variable-sized frag. Branches within nomacro sections are not relaxed in the current implementation, so we handle them just as before. -- Alexandre Oliva Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/ Red Hat GCC Developer aoliva@{redhat.com, gcc.gnu.org} CS PhD student at IC-Unicamp oliva@{lsd.ic.unicamp.br, gnu.org} Free Software Evangelist Professional serial bug killer