From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-return-72310-listarch-gcc=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 16675 invoked by alias); 22 Apr 2003 10:53:12 -0000
Mailing-List: contact gcc-help@gcc.gnu.org; run by ezmlm
Precedence: bulk
List-Archive: <http://gcc.gnu.org/ml/gcc/>
List-Post: <mailto:gcc@gcc.gnu.org>
List-Help: <http://gcc.gnu.org/ml/>
Sender: gcc-owner@gcc.gnu.org
Received: (qmail 16668 invoked from network); 22 Apr 2003 10:53:12 -0000
Received: from unknown (HELO mx1.redhat.com) (66.187.233.31)
  by sources.redhat.com with SMTP; 22 Apr 2003 10:53:12 -0000
Received: from int-mx1.corp.redhat.com (int-mx1.corp.redhat.com [172.16.52.254])
	by mx1.redhat.com (8.11.6/8.11.6) with ESMTP id h3MArBD02896;
	Tue, 22 Apr 2003 06:53:11 -0400
Received: from redhat.com (IDENT:WMMAZbtuS2nInWIQmTHFollkJ7HbhPO4@vpn50-3.rdu.redhat.com [172.16.50.3])
	by int-mx1.corp.redhat.com (8.11.6/8.11.6) with ESMTP id h3MArAq26500;
	Tue, 22 Apr 2003 06:53:11 -0400
Received: (from aph@localhost)
	by redhat.com (8.11.6/8.11.0) id h3MAr7r06707;
	Tue, 22 Apr 2003 11:53:07 +0100
From: Andrew Haley <aph@redhat.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
Message-ID: <16037.7955.357772.413837@cuddles.redhat.com>
Date: Tue, 22 Apr 2003 12:37:00 -0000
To: Nathan Sidwell <nathan@codesourcery.com>
Cc: gcc@gcc.gnu.org
Subject: Re: On alignment
In-Reply-To: <3EA51E5F.2060101@codesourcery.com>
References: <200303251122.13693.kevin.hendricks@sympatico.ca>
	<wvl1y0vmhdv.fsf@prospero.boston.redhat.com>
	<wvlu1drl2kl.fsf@prospero.boston.redhat.com>
	<200303251344.59988.kevin.hendricks@sympatico.ca>
	<wvlhe9rkzgm.fsf@prospero.boston.redhat.com>
	<16037.6826.35777.756256@cuddles.redhat.com>
	<3EA51E5F.2060101@codesourcery.com>
X-SW-Source: 2003-04/txt/msg01053.txt.bz2

Nathan Sidwell writes:
 > Andrew Haley wrote:
 > > WHat I still cannot understand is why a struct that contains a double
 > > is 4-aligned on x86, but a double is 8-aligned.  This means that you
 > > cannot infer the alignment of a struct from the alignment of its
 > > members.  Is this really part of the multi-vendor ABI?
 > That packing rule is part of the i86 psABI

Thanks.  Got a link to that?

Andrew.