From patchwork Mon Apr 8 03:07:03 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dehao Chen X-Patchwork-Id: 234560 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]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "localhost", Issuer "www.qmailtoaster.com" (not verified)) by ozlabs.org (Postfix) with ESMTPS id 342D02C00C5 for ; Mon, 8 Apr 2013 13:07:14 +1000 (EST) DomainKey-Signature: a=rsa-sha1; c=nofws; d=gcc.gnu.org; h=list-id :list-unsubscribe:list-archive:list-post:list-help:sender :mime-version:date:message-id:subject:from:to:cc:content-type; q=dns; s=default; b=ij++s7Yvc+2fVnm6CLdei9vzS9ZOehundXEP8E/um1s AcpOOtPx4Pxo/ahWhjm7dZ8AkkHqhGSAtbQ6et4tkVuAqSpKosG/j5aNKjOFH8iy hrdesaR9OONoYIqCqWxkRTmo6fFbPXPGAufTpKk0t8dTnVJ4fQLhdNYO+zja/+Yc = DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=gcc.gnu.org; h=list-id :list-unsubscribe:list-archive:list-post:list-help:sender :mime-version:date:message-id:subject:from:to:cc:content-type; s=default; bh=UqOc3DBs0gGrbr7VmNs2NSd5eLw=; b=jRnpfNDaFPxnDqhkQ miWPbOrAtRgcK5XwPqfabDMqwdWSbA4FdNS/0EvTUAqiXJyyJEH+O7DI/NGGcT81 Y7GJENYhs/P706rHP9MYVbnVWNLD08QQRAmDK63iRvvDiljOze//tgrwYjV+7ROl Oeor4tAjhyHHsZxGNIuHiHreNc= Received: (qmail 1069 invoked by alias); 8 Apr 2013 03:07:07 -0000 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 Received: (qmail 1054 invoked by uid 89); 8 Apr 2013 03:07:06 -0000 X-Spam-SWARE-Status: No, score=-6.2 required=5.0 tests=AWL, BAYES_00, KHOP_RCVD_TRUST, RCVD_IN_DNSWL_LOW, RCVD_IN_HOSTKARMA_YE, RP_MATCHES_RCVD autolearn=ham version=3.3.1 Received: from mail-lb0-f179.google.com (HELO mail-lb0-f179.google.com) (209.85.217.179) by sourceware.org (qpsmtpd/0.84/v0.84-167-ge50287c) with ESMTP; Mon, 08 Apr 2013 03:07:06 +0000 Received: by mail-lb0-f179.google.com with SMTP id t1so5175844lbd.24 for ; Sun, 07 Apr 2013 20:07:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=mime-version:x-received:date:message-id:subject:from:to:cc :content-type:x-gm-message-state; bh=l/wKHRpAbfLMw0AJC36iddu73OreKXKBc45agaI3vGg=; b=h2OdvCGZslQQATkuaYmZ5e52SEKRIvFOdybpplbdluSsA/NEtkewnR5N7quk72P/vS tXfThKdZasrSTsO8RkSNRd5Km0lbqoryA3X87YxSPRfgqeKeTUoxi0DR2CE0stek1TXt n2N8JS1XefwCFCSGW1rNwJA9hmAf/Fi6sSXRHn3tyOiWR7ganrbquKeMsIlPqE51t/mh Fedct3HZWvbuffw5XZGWZu0l7kZGYUZcK6IweILG6pl9JuYpE7Deyfc+KM+7PehOrzuA r5vHZ+0TkgXUdt6NbJ0iBvecaAv9/J3lBTrfEyaQ1XRSIsD7/GS5LokVlA+6M3TaaSkt 3UEg== MIME-Version: 1.0 X-Received: by 10.112.129.137 with SMTP id nw9mr10790910lbb.56.1365390423317; Sun, 07 Apr 2013 20:07:03 -0700 (PDT) Received: by 10.112.45.2 with HTTP; Sun, 7 Apr 2013 20:07:03 -0700 (PDT) Date: Sun, 7 Apr 2013 20:07:03 -0700 Message-ID: Subject: [Google] Recompute function frequency after calculating branch probability From: Dehao Chen To: GCC Patches Cc: David Li X-Gm-Message-State: ALoCoQlQs1mu6Mms6VIIlycChuOiaYllbTJAg5j035O0anl3+LkalVlJmZkK74Gh8Ax1FbGNg6TbqiEsYr0wbynkJf9YglLD4lo6ySWaQ7jNhs7+KLvBINF4R7Gwi4QRxQQBPzt0dLd3xO16eOd5HMem0+1J9jS/c/1uBhBwGHua9PZgjcs9z3xw6/1niYaOHd5kjJZU7mNC Hi, This patch updates the function frequency after calculating branch probability. This is important because cold function could be promoted to hot after ipa-inline. Bootstrapped and passed gcc regression tests. Okay for google-4_7? Thanks, Dehao --- a/gcc/predict.c +++ b/gcc/predict.c @@ -2877,7 +2877,10 @@ rebuild_frequencies (void) else if (profile_status == PROFILE_READ) { if (flag_auto_profile) - afdo_calculate_branch_prob (); + { + afdo_calculate_branch_prob (); + compute_function_frequency (); + } counts_to_freqs (); } else