From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 12626 invoked by alias); 16 Jun 2011 19:17:43 -0000 Received: (qmail 12614 invoked by uid 22791); 16 Jun 2011 19:17:42 -0000 X-SWARE-Spam-Status: No, hits=-2.4 required=5.0 tests=AWL,BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,RCVD_IN_DNSWL_LOW,RFC_ABUSE_POST X-Spam-Check-By: sourceware.org Received: from mail-ey0-f175.google.com (HELO mail-ey0-f175.google.com) (209.85.215.175) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Thu, 16 Jun 2011 19:17:26 +0000 Received: by eye27 with SMTP id 27so764776eye.20 for ; Thu, 16 Jun 2011 12:17:25 -0700 (PDT) Received: by 10.14.99.71 with SMTP id w47mr518624eef.221.1308251845167; Thu, 16 Jun 2011 12:17:25 -0700 (PDT) MIME-Version: 1.0 Received: by 10.14.186.16 with HTTP; Thu, 16 Jun 2011 12:17:05 -0700 (PDT) In-Reply-To: <4DFA48FA.8010904@redhat.com> References: <4DF0FAB5.6070704@gjlay.de> <4DF11D20.4030907@gjlay.de> <4DF1ED76.4030507@gjlay.de> <4DF650B7.3030705@gjlay.de> <4DF73490.2080709@gjlay.de> <4DF7D2B5.1090708@gjlay.de> <4DF8ED42.1030706@redhat.com> <4DF918A9.4070003@gjlay.de> <4DF92AEA.4000906@redhat.com> <4DF93B17.8020008@redhat.com> <4DFA0C13.9060102@redhat.com> <4DFA48FA.8010904@redhat.com> From: Denis Chertykov Date: Thu, 16 Jun 2011 19:33:00 -0000 Message-ID: Subject: Re: [Patch, AVR]: Fix PR46779 To: Richard Henderson Cc: Georg-Johann Lay , gcc-patches@gcc.gnu.org, Anatoly Sokolov , "Eric B. Weddington" Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable 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/msg01288.txt.bz2 2011/6/16 Richard Henderson : > On 06/16/2011 11:09 AM, Denis Chertykov wrote: >> Only one question why you removed avr_legitimize_address ? > > It doesn't actually do anything useful. > > All it does is, for a subset of inputs, force the address into > a register. =C2=A0This is the same as the fallback action. =C2=A0That is, > any non-legitimate address is forced into a register. > > A more useful version of legitimize_address would be to split > a large offset into two pieces, the large one to be CSE'd and > the small one that fits into a memory offset. > > E.g. the following with which I was experimenting. Are you working in public git repository ? Can I chekout it ? If not then may be you can drop a full patch against svn. Denis.