From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-return-143109-listarch-gcc=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 7455 invoked by alias); 19 Dec 2007 01:46:28 -0000
Received: (qmail 7443 invoked by uid 22791); 19 Dec 2007 01:46:27 -0000
X-Spam-Check-By: sourceware.org
Received: from caffeine.csclub.uwaterloo.ca (HELO caffeine.csclub.uwaterloo.ca) (129.97.134.17)     by sourceware.org (qpsmtpd/0.31) with ESMTP; Wed, 19 Dec 2007 01:46:22 +0000
Received: from caffeine.csclub.uwaterloo.ca (localhost [127.0.0.1]) 	by caffeine.csclub.uwaterloo.ca (Postfix) with ESMTP id 24F1F73CB0 	for <gcc@gcc.gnu.org>; Tue, 18 Dec 2007 20:46:21 -0500 (EST)
Received: by caffeine.csclub.uwaterloo.ca (Postfix, from userid 20006) 	id 11CB773CC4; Tue, 18 Dec 2007 20:46:21 -0500 (EST)
To: gcc@gcc.gnu.org
Subject: Re: A proposal to align GCC stack
Message-Id: <20071219014621.11CB773CC4@caffeine.csclub.uwaterloo.ca>
Date: Wed, 19 Dec 2007 01:46:00 -0000
From: rridge@csclub.uwaterloo.ca (Ross Ridge)
Mailing-List: contact gcc-help@gcc.gnu.org; run by ezmlm
Precedence: bulk
List-Id: <gcc.gcc.gnu.org>
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
X-SW-Source: 2007-12/txt/msg00549.txt.bz2

Robert Dewar writes:
>Well if we have local variables of type float (and we have specified
>use of SSE), we are in trouble, no?

Non-vector SSE instructions, like the ones that operate on scalar floats,
don't require memory operands to be aligned.

					Ross Ridge