From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 14767 invoked by alias); 31 Mar 2011 15:23:23 -0000 Received: (qmail 14753 invoked by uid 22791); 31 Mar 2011 15:23:23 -0000 X-SWARE-Spam-Status: No, hits=-1.8 required=5.0 tests=AWL,BAYES_00,T_RP_MATCHES_RCVD X-Spam-Check-By: sourceware.org Received: from mail.codesourcery.com (HELO mail.codesourcery.com) (38.113.113.100) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Thu, 31 Mar 2011 15:23:16 +0000 Received: (qmail 11274 invoked from network); 31 Mar 2011 15:23:15 -0000 Received: from unknown (HELO ?84.152.157.219?) (bernds@127.0.0.2) by mail.codesourcery.com with ESMTPA; 31 Mar 2011 15:23:15 -0000 Message-ID: <4D949BC6.7030504@codesourcery.com> Date: Thu, 31 Mar 2011 15:31:00 -0000 From: Bernd Schmidt User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.15) Gecko/20110325 Lightning/1.0b3pre Thunderbird/3.1.9 MIME-Version: 1.0 To: "Henderson, Stuart" CC: "gcc-patches@gcc.gnu.org" Subject: Re: [Patch] bfin: move loop invariants out of loop References: <05E9E85E39C35B4D96ED3A3190E35A10A2E0F4179E@LIMKCMBX1.ad.analog.com> In-Reply-To: <05E9E85E39C35B4D96ED3A3190E35A10A2E0F4179E@LIMKCMBX1.ad.analog.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit 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: 2011-03/txt/msg02210.txt.bz2 On 03/31/2011 04:16 PM, Henderson, Stuart wrote: > The attached patch attempts to move loop invariants out of loops for Blackfin. > > > 2011-03-31 Stuart Henderson > > From Bernd Schmidt > * config/bfin/bfin.c (bfin_gen_bundles): Don't try to bundle a jump. > (bfin_optimize_loops_1, move_loop_constants): New static functions. > (bfin_reorg): Call bfin_optimize_loops_1 if optimizing. I kind of want to do this kind of thing as part of postreload, especially since I recently discovered that we have a cprop pass after loop_invariant that tends to undo all the loop invariant motion. Bernd