From patchwork Sun Sep 2 18:42:09 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gerald Pfeifer X-Patchwork-Id: 181221 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from sourceware.org (server1.sourceware.org [209.132.180.131]) by ozlabs.org (Postfix) with SMTP id 223D12C0081 for ; Mon, 3 Sep 2012 04:42:31 +1000 (EST) Comment: DKIM? See http://www.dkim.org DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d=gcc.gnu.org; s=default; x=1347216152; h=Comment: DomainKey-Signature:Received:Received:Received:Received:Date: From:To:cc:Subject:In-Reply-To:Message-ID:References: MIME-Version:Content-Type:Mailing-List:Precedence:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:Sender: Delivered-To; bh=VNo4gb4UlG8DJZ/qTrhCpnY6vO0=; b=HWArt0Fhy6vZF+c ix992SPC2PNfZhq/lrb9u7BEVRqMLGAv/dYvS4mhLw5jdAoEkWNY6oBZ7PjEePPx PV7QHZTvx6VhqYfRnfThInaI+sFreerslyfOv8jZXxLFBxqWPh5XPTnALY39csuG Ej9wdYYgFQzdSQftBd3xFeluXHls= Comment: DomainKeys? See http://antispam.yahoo.com/domainkeys DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=default; d=gcc.gnu.org; h=Received:Received:X-SWARE-Spam-Status:X-Spam-Check-By:Received:Received:Date:From:To:cc:Subject:In-Reply-To:Message-ID:References:MIME-Version:Content-Type:X-IsSubscribed:Mailing-List:Precedence:List-Id:List-Unsubscribe:List-Archive:List-Post:List-Help:Sender:Delivered-To; b=Owkkke2t9u5QLlR0QPJ8/D3H6CzSCLOvPwJSGUMLD6bAYw5h7XCRGPnhO/CSsA DEu5QAXmdcGcp/CR/PuSjscwAwTm9OAHwZ9dqn/gsEs7AEFREsBQrKxGZyMcLWau RyhXtFNve8WaZTri/U76y/JkVRc2qWyXnMZmDYGyted3M=; Received: (qmail 29911 invoked by alias); 2 Sep 2012 18:42:27 -0000 Received: (qmail 29903 invoked by uid 22791); 2 Sep 2012 18:42:26 -0000 X-SWARE-Spam-Status: No, hits=-51.7 required=5.0 tests=AWL, BAYES_00, KHOP_THREADED X-Spam-Check-By: sourceware.org Received: from ainaz.pair.com (HELO ainaz.pair.com) (209.68.2.66) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Sun, 02 Sep 2012 18:42:13 +0000 Received: from [192.168.0.129] (vie-188-118-240-184.dsl.sil.at [188.118.240.184]) by ainaz.pair.com (Postfix) with ESMTPSA id 409CB3F40F; Sun, 2 Sep 2012 14:42:12 -0400 (EDT) Date: Sun, 2 Sep 2012 20:42:09 +0200 (CEST) From: Gerald Pfeifer To: Richard Guenther cc: gcc-patches@gcc.gnu.org Subject: [wwwdocs] PATCH for Re: [PATCH] Remove matrix-reorg In-Reply-To: Message-ID: References: MIME-Version: 1.0 X-IsSubscribed: yes Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Archive: List-Post: List-Help: Sender: gcc-patches-owner@gcc.gnu.org Delivered-To: mailing list gcc-patches@gcc.gnu.org Hi Richi, On Fri, 10 Aug 2012, Richard Guenther wrote: > This removes matrix-reorg which is today useless and possibly > dangerous. It follows struct-reorg down the kitchen-sink. how about the following patch for the GCC 4.8 release notes? Would you like to propose a (politically correct ;-) snippet on why you removed the two ? Gerald Index: changes.html =================================================================== RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-4.8/changes.html,v retrieving revision 1.26 diff -u -3 -p -r1.26 changes.html --- changes.html 2 Sep 2012 15:56:24 -0000 1.26 +++ changes.html 2 Sep 2012 18:39:27 -0000 @@ -38,7 +38,7 @@ explicit use of vector types may be inco built with older versions of GCC. Auto-vectorized code is not affected by this change.

-

General Optimizer Improvements

+

General Optimizer Improvements (and Changes)

  • A new option -ftree-partial-pre was added to control @@ -46,6 +46,9 @@ by this change.

    This option is enabled by default at the -O3 optimization level, and it makes PRE more aggressive.
    • +
  • The struct reorg and matrix reorg optimizations (command-line + options -fipa-struct-reorg and + -fipa-matrix-reorg) have been removed.