From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 6645 invoked by alias); 17 Jul 2011 16:30:24 -0000 Received: (qmail 6628 invoked by uid 22791); 17 Jul 2011 16:30:23 -0000 X-SWARE-Spam-Status: No, hits=-2.2 required=5.0 tests=AWL,BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,RCVD_IN_DNSWL_LOW,TW_IB X-Spam-Check-By: sourceware.org Received: from mail-gy0-f175.google.com (HELO mail-gy0-f175.google.com) (209.85.160.175) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Sun, 17 Jul 2011 16:30:05 +0000 Received: by gyd12 with SMTP id 12so1177913gyd.20 for ; Sun, 17 Jul 2011 09:30:05 -0700 (PDT) MIME-Version: 1.0 Received: by 10.151.43.19 with SMTP id v19mr3625857ybj.444.1310920203195; Sun, 17 Jul 2011 09:30:03 -0700 (PDT) Received: by 10.150.205.2 with HTTP; Sun, 17 Jul 2011 09:30:03 -0700 (PDT) In-Reply-To: <201107171330.55167.ebotcazou@adacore.com> References: <201107171330.55167.ebotcazou@adacore.com> Date: Sun, 17 Jul 2011 16:55:00 -0000 Message-ID: Subject: Re: PATCH RFA: Build stages 2 and 3 with C++ From: Richard Guenther To: Eric Botcazou Cc: gcc-patches@gcc.gnu.org, Ian Lance Taylor , Diego Novillo , gcc@gcc.gnu.org Content-Type: text/plain; charset=ISO-8859-1 X-IsSubscribed: yes Mailing-List: contact gcc-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-owner@gcc.gnu.org X-SW-Source: 2011-07/txt/msg00288.txt.bz2 On Sun, Jul 17, 2011 at 1:30 PM, Eric Botcazou wrote: >> I have measured it at some point and IIRC it was about 10% slower >> (comparing C bootstrap with C++ in stag1 languages with C++ bootstrap, >> not sure if that included bootstrapping libstdc++ for the former). > > IMO acceptable now that the build time of libjava has been halved. Actually the penalty for using C++ was only 1.5%, that of bootstrapping C++ and libstdc++ was 15%. For reference: http://gcc.gnu.org/ml/gcc/2010-06/msg00100.html Richard.