From patchwork Wed Nov 7 09:39:14 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andreas Krebbel X-Patchwork-Id: 197640 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 91EC92C00E7 for ; Wed, 7 Nov 2012 20:39:29 +1100 (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=1352885970; h=Comment: DomainKey-Signature:Received:Received:Received:Received:Received: Received:Received:Received:Message-ID:Date:From:User-Agent: MIME-Version:To:CC:Subject:References:In-Reply-To:Content-Type: Content-Transfer-Encoding:Mailing-List:Precedence:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:Sender: Delivered-To; bh=LDNf9JnGfAujtxqetxJ8r1w+8oc=; b=TB0FkcybA6T6bhf IfYYR5rOx54leNTsrD4H3SixsH0JeLTWUfHgWoShwXf9kzB0dfFmK16ytUUFP1Iz +++F2SvT82QrQRydkrtV5pL56ONLsi3sG7GHrtf++1bhPuYdNPQYRshdrlvWtKFy qFErN2snEKLWwHIug8gJiir5sgvc= 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:Received:Received:Received:Received:Message-ID:Date:From:User-Agent:MIME-Version:To:CC:Subject:References:In-Reply-To:Content-Type:Content-Transfer-Encoding:x-cbid:X-IsSubscribed:Mailing-List:Precedence:List-Id:List-Unsubscribe:List-Archive:List-Post:List-Help:Sender:Delivered-To; b=iziWMtXrHyFZ5/iSJfwt6nPc48VdDVEyfnscL+QX5IuzgG0yS0CuSH3GrlDhKH UP+gC215Co/hHBntiQn4bBVXmUWljMNUItWfQNOoPQBapUidUlfCqSS23EBXg9Fo eA6tcx4koGxdh3cfx1gl5zfVy0sOwR8oOCg/2ne1fVPrg=; Received: (qmail 16617 invoked by alias); 7 Nov 2012 09:39:26 -0000 Received: (qmail 16608 invoked by uid 22791); 7 Nov 2012 09:39:26 -0000 X-SWARE-Spam-Status: No, hits=-4.5 required=5.0 tests=AWL, BAYES_00, KHOP_RCVD_UNTRUST, KHOP_SPAMHAUS_DROP, KHOP_THREADED, RCVD_IN_HOSTKARMA_W, RCVD_IN_HOSTKARMA_WL, RP_MATCHES_RCVD X-Spam-Check-By: sourceware.org Received: from e06smtp13.uk.ibm.com (HELO e06smtp13.uk.ibm.com) (195.75.94.109) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Wed, 07 Nov 2012 09:39:19 +0000 Received: from /spool/local by e06smtp13.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Wed, 7 Nov 2012 09:39:18 -0000 Received: from b06cxnps3074.portsmouth.uk.ibm.com (9.149.109.194) by e06smtp13.uk.ibm.com (192.168.101.143) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; Wed, 7 Nov 2012 09:39:15 -0000 Received: from d06av01.portsmouth.uk.ibm.com (d06av01.portsmouth.uk.ibm.com [9.149.37.212]) by b06cxnps3074.portsmouth.uk.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id qA79d75b46923856 for ; Wed, 7 Nov 2012 09:39:07 GMT Received: from d06av01.portsmouth.uk.ibm.com (loopback [127.0.0.1]) by d06av01.portsmouth.uk.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id qA79dEXs031539 for ; Wed, 7 Nov 2012 02:39:14 -0700 Received: from [9.152.212.191] (dyn-9-152-212-191.boeblingen.de.ibm.com [9.152.212.191]) by d06av01.portsmouth.uk.ibm.com (8.14.4/8.13.1/NCO v10.0 AVin) with ESMTP id qA79dEC0031515; Wed, 7 Nov 2012 02:39:14 -0700 Message-ID: <509A2C42.5060401@linux.vnet.ibm.com> Date: Wed, 07 Nov 2012 10:39:14 +0100 From: Andreas Krebbel User-Agent: Mozilla/5.0 (X11; Linux i686; rv:16.0) Gecko/20121028 Thunderbird/16.0.2 MIME-Version: 1.0 To: Gerald Pfeifer CC: gcc-patches@gcc.gnu.org Subject: Re: [Committed] S/390: Add support for the new IBM zEnterprise EC12 References: <20121010050021.GA5782@bart> In-Reply-To: x-cbid: 12110709-2966-0000-0000-000005CC3417 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 On 21/10/12 00:14, Gerald Pfeifer wrote: > On Wed, 10 Oct 2012, Andreas Krebbel wrote: >> the attached patch adds initial support for the latest release of >> the IBM mainframe series - the IBM zEnterprise EC12 (zEC12). > > Nice. Can you please also add a note to the release notes at > gcc-4.8/changes.html ? > > In principle, I'm also in favor of adding a news item to our > main page for updates like this since it shows how GCC is > evolving and supporting the latest hardware releases (even > if, like here, the code changes are not huge). > > Gerald > Sure. What about something like this? Index: htdocs/index.html =================================================================== RCS file: /cvs/gcc/wwwdocs/htdocs/index.html,v retrieving revision 1.865 diff -u -r1.865 index.html --- htdocs/index.html 6 Nov 2012 12:17:13 -0000 1.865 +++ htdocs/index.html 7 Nov 2012 09:36:17 -0000 @@ -53,6 +53,12 @@
+
IBM zEnterprise EC12 support + [2012-10-10]
+
Support for the latest release of the System z mainframe +zEC12 +has been added to the architecture back-end.
+
GCC 4.7.2 released [2012-09-20]
Index: htdocs/gcc-4.8/changes.html =================================================================== RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-4.8/changes.html,v retrieving revision 1.53 diff -u -r1.53 changes.html --- htdocs/gcc-4.8/changes.html 4 Nov 2012 15:22:03 -0000 1.53 +++ htdocs/gcc-4.8/changes.html 7 Nov 2012 09:36:17 -0000 @@ -325,6 +325,29 @@ command-line option. +

S/390, System z

+
    +
  • Support for the IBM zEnterprise zEC12 processor has been + added. When using the -march=zEC12 option, the + compiler will generate code making use of the following new + instructions: +
      +
    • load and trap instructions
      • +
    • 2 new compare and trap instructions
      • +
    • rotate and insert selected bits - without CC clobber
      • +
    + The -mtune=zEC12 option enables zEC12 specific + instruction scheduling without making use of new + instructions.
    • +
  • Register pressure sensitive insn scheduling is enabled by + default.
    • +
  • The IFUNC function attribute is enabled by default.
    • +
  • memcpy and memcmp invokations on big memory chunks or with + runtime lengths are not generated inline anymore when tuning for + z10 or higher. The purpose is to make use of the IFUNC + optimized versions in Glibc.
    • +
+

SH

  • The default alignment settings have been reduced to be less aggressive.