From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 16611 invoked by alias); 22 Dec 2011 03:23:28 -0000 Received: (qmail 16595 invoked by uid 22791); 22 Dec 2011 03:23:26 -0000 X-SWARE-Spam-Status: No, hits=-4.1 required=5.0 tests=AWL,BAYES_00,RP_MATCHES_RCVD,SPF_HELO_PASS X-Spam-Check-By: sourceware.org Received: from lo.gmane.org (HELO lo.gmane.org) (80.91.229.12) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Thu, 22 Dec 2011 03:23:12 +0000 Received: from list by lo.gmane.org with local (Exim 4.69) (envelope-from ) id 1RdZFN-0003NY-Gl for gcc-help@gcc.gnu.org; Thu, 22 Dec 2011 04:23:09 +0100 Received: from 130-94-161-213-dsl.hevanet.com ([130.94.161.213]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 22 Dec 2011 04:23:09 +0100 Received: from NeverRead by 130-94-161-213-dsl.hevanet.com with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 22 Dec 2011 04:23:09 +0100 To: gcc-help@gcc.gnu.org From: Scott Meyers Subject: Re: __builtin_expect vs. PGO Date: Thu, 22 Dec 2011 12:15:00 -0000 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.24) Gecko/20111103 Mnenhy/0.8.4 Thunderbird/3.1.16 In-Reply-To: X-IsSubscribed: yes Mailing-List: contact gcc-help-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-help-owner@gcc.gnu.org X-SW-Source: 2011-12/txt/msg00211.txt.bz2 On 12/21/2011 5:02 PM, Ian Lance Taylor wrote: > Yes, by the time it matters in the compiler, probabilities are > probabilities wherever they come from. Makes sense, thanks. Scott