From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 17411 invoked by alias); 6 Apr 2010 17:27:28 -0000 Received: (qmail 17396 invoked by uid 22791); 6 Apr 2010 17:27:26 -0000 X-SWARE-Spam-Status: No, hits=-1.1 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,SARE_MSGID_LONG45 X-Spam-Check-By: sourceware.org Received: from fg-out-1718.google.com (HELO fg-out-1718.google.com) (72.14.220.155) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Tue, 06 Apr 2010 17:27:20 +0000 Received: by fg-out-1718.google.com with SMTP id d23so81890fga.8 for ; Tue, 06 Apr 2010 10:27:17 -0700 (PDT) MIME-Version: 1.0 Received: by 10.86.90.10 with HTTP; Tue, 6 Apr 2010 10:27:17 -0700 (PDT) In-Reply-To: <20100406171245.GK540@codesourcery.com> References: <20100406171245.GK540@codesourcery.com> Date: Tue, 06 Apr 2010 17:27:00 -0000 Received: by 10.87.5.30 with SMTP id h30mr5016840fgi.3.1270574837716; Tue, 06 Apr 2010 10:27:17 -0700 (PDT) Message-ID: Subject: Re: lower subreg optimization From: Steven Bosscher To: Nathan Froyd Cc: Ian Lance Taylor , roy rosen , gcc@gcc.gnu.org Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Mailing-List: contact gcc-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-owner@gcc.gnu.org X-SW-Source: 2010-04/txt/msg00093.txt.bz2 On Tue, Apr 6, 2010 at 7:12 PM, Nathan Froyd wro= te: >=A0I realize > e500v2 is not exactly a mainstream target, but perhaps a target hook is > appropriate here Big hammer. Preferred tool for jobs in the real world. > =A0I suppose checking costs might achieve the same > thing. Small hammer. Preferred tool for jobs in the GCC world. I suppose the trouble will be that rtx_cost is not going to be accurate enough for the job... Ciao! Steven