From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 14635 invoked by alias); 10 Apr 2003 21:41:52 -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 14622 invoked from network); 10 Apr 2003 21:41:52 -0000 Received: from unknown (HELO igw2.watson.ibm.com) (129.34.20.6) by sources.redhat.com with SMTP; 10 Apr 2003 21:41:52 -0000 Received: from sp1n293en1.watson.ibm.com (sp1n293en1.watson.ibm.com [9.2.112.57]) by igw2.watson.ibm.com (8.11.7/8.11.4) with ESMTP id h3ALeUQ24814; Thu, 10 Apr 2003 17:40:30 -0400 Received: from makai.watson.ibm.com (makai.watson.ibm.com [9.2.216.144]) by sp1n293en1.watson.ibm.com (8.11.6/8.11.4) with ESMTP id h3ALeUl97432; Thu, 10 Apr 2003 17:40:30 -0400 Received: from watson.ibm.com (localhost [127.0.0.1]) by makai.watson.ibm.com (AIX4.3/8.9.3/8.9.3/09-18-2002) with ESMTP id RAA23890; Thu, 10 Apr 2003 17:40:30 -0400 Message-Id: <200304102140.RAA23890@makai.watson.ibm.com> To: kenner@vlsi1.ultra.nyu.edu (Richard Kenner) cc: rth@redhat.com, gcc-patches@gcc.gnu.org, gcc@gcc.gnu.org Subject: Re: DATA_ALIGNMENT vs. DECL_USER_ALIGNMENT In-Reply-To: Message from kenner@vlsi1.ultra.nyu.edu (Richard Kenner) of "Thu, 10 Apr 2003 17:40:55 EDT." <10304102140.AA03203@vlsi1.ultra.nyu.edu> Date: Thu, 10 Apr 2003 21:52:00 -0000 From: David Edelsohn X-SW-Source: 2003-04/txt/msg00476.txt.bz2 >>>>> Richard Kenner writes: Richard> Because of the requirement that the alignment of most types be *static*. Richard> So they cannot be changed from what the front end thinks they are, whether Richard> or not they got that way by explicit user action. Then it sounds like we need a way for the port to specify or the front-end to query the minimum alignment allowed for the target. This would allow the front-end to statically know the alignment of the type while maintaining the target requirements. David