From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 30665 invoked by alias); 28 Nov 2001 01:45:41 -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 30616 invoked from network); 28 Nov 2001 01:45:37 -0000 Received: from unknown (HELO dot.cygnus.com) (205.180.230.224) by hostedprojects.ges.redhat.com with SMTP; 28 Nov 2001 01:45:37 -0000 Received: (from rth@localhost) by dot.cygnus.com (8.11.2/8.11.2) id fAS1iqx30392; Tue, 27 Nov 2001 17:44:52 -0800 X-Authentication-Warning: dot.cygnus.com: rth set sender to rth@redhat.com using -f Date: Tue, 20 Nov 2001 02:23:00 -0000 From: Richard Henderson To: Dale Johannesen Cc: Aldy Hernandez , "Joseph S. Myers" , gcc@gcc.gnu.org Subject: Re: front end changes for altivec Message-ID: <20011127174452.A30389@redhat.com> Mail-Followup-To: Richard Henderson , Dale Johannesen , Aldy Hernandez , "Joseph S. Myers" , gcc@gcc.gnu.org References: <1006910794.5178.61.camel@litecycle.cc.andrews.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: ; from dalej@apple.com on Tue, Nov 27, 2001 at 05:40:11PM -0800 X-SW-Source: 2001-11/txt/msg00944.txt.bz2 On Tue, Nov 27, 2001 at 05:40:11PM -0800, Dale Johannesen wrote: > I come from a BE background, so to me a single mode for all > 16-byte vector objects seems cleanest, but I'm sure people from > FE backgrounds would disagree. This falls down for operations such as saturating addition -- you have to know what the element width is, so that you can choose the proper instruction. r~ From mboxrd@z Thu Jan 1 00:00:00 1970 From: Richard Henderson To: Dale Johannesen Cc: Aldy Hernandez , "Joseph S. Myers" , gcc@gcc.gnu.org Subject: Re: front end changes for altivec Date: Tue, 27 Nov 2001 17:45:00 -0000 Message-ID: <20011127174452.A30389@redhat.com> References: <1006910794.5178.61.camel@litecycle.cc.andrews.edu> X-SW-Source: 2001-11/msg01445.html Message-ID: <20011127174500.QwUW7APoHecL1FCP5se4cgd7KKcM9KYrSLoi7XOo-pg@z> On Tue, Nov 27, 2001 at 05:40:11PM -0800, Dale Johannesen wrote: > I come from a BE background, so to me a single mode for all > 16-byte vector objects seems cleanest, but I'm sure people from > FE backgrounds would disagree. This falls down for operations such as saturating addition -- you have to know what the element width is, so that you can choose the proper instruction. r~