From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 15646 invoked by alias); 2 Jun 2011 15:47:44 -0000 Received: (qmail 15637 invoked by uid 22791); 2 Jun 2011 15:47:43 -0000 X-SWARE-Spam-Status: No, hits=-2.4 required=5.0 tests=AWL,BAYES_00,RCVD_IN_DNSWL_LOW X-Spam-Check-By: sourceware.org Received: from service87.mimecast.com (HELO service87.mimecast.com) (94.185.240.25) by sourceware.org (qpsmtpd/0.43rc1) with SMTP; Thu, 02 Jun 2011 15:47:28 +0000 Received: from cam-owa1.Emea.Arm.com (fw-tnat.cambridge.arm.com [217.140.96.21]) by service87.mimecast.com; Thu, 02 Jun 2011 16:47:24 +0100 Received: from [10.1.67.34] ([10.1.255.212]) by cam-owa1.Emea.Arm.com with Microsoft SMTPSVC(6.0.3790.0); Thu, 2 Jun 2011 16:47:45 +0100 Subject: Re: [PATCH][ARM] add support for some missing 16-bit multiplication insns From: Richard Earnshaw To: Andrew Stubbs Cc: gcc-patches@gcc.gnu.org, patches@linaro.org In-Reply-To: <4DDFD307.6010808@codesourcery.com> References: <4DDFD307.6010808@codesourcery.com> Date: Thu, 02 Jun 2011 15:47:00 -0000 Message-Id: <1307029640.17090.7.camel@e102346-lin.cambridge.arm.com> Mime-Version: 1.0 X-MC-Unique: 111060216472400501 Content-Type: text/plain; charset=WINDOWS-1252 Content-Transfer-Encoding: quoted-printable X-IsSubscribed: yes Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-patches-owner@gcc.gnu.org X-SW-Source: 2011-06/txt/msg00158.txt.bz2 On Fri, 2011-05-27 at 17:36 +0100, Andrew Stubbs wrote: > Hi all, >=20 > This patch adds support for the ARM SMLALTB, SMLALTT, SMLATB, and SMLATT= =20 > instructions. >=20 > These instructions do HImode -> DI/SImode widening=20 > multiply-and-accumulate with one or both operands taken from the top 16=20 > bits of the source register. >=20 > Note that this patch won't do much until my other patch for canonical=20 > mult patterns is applied. >=20 > OK? >=20 > Andrew OK. R.