From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 5851 invoked by alias); 29 May 2017 11:13:33 -0000 Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-patches-owner@gcc.gnu.org Received: (qmail 5837 invoked by uid 89); 29 May 2017 11:13:31 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-1.9 required=5.0 tests=AWL,BAYES_00,RCVD_IN_DNSWL_NONE,SPF_PASS autolearn=ham version=3.3.2 spammy= X-HELO: smtp.eu.adacore.com Received: from mel.act-europe.fr (HELO smtp.eu.adacore.com) (194.98.77.210) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Mon, 29 May 2017 11:13:30 +0000 Received: from localhost (localhost [127.0.0.1]) by filtered-smtp.eu.adacore.com (Postfix) with ESMTP id AC6568132A; Mon, 29 May 2017 13:13:31 +0200 (CEST) Received: from smtp.eu.adacore.com ([127.0.0.1]) by localhost (smtp.eu.adacore.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id oWRl0usThGHZ; Mon, 29 May 2017 13:13:31 +0200 (CEST) Received: from polaris.localnet (bon31-6-88-161-99-133.fbx.proxad.net [88.161.99.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.eu.adacore.com (Postfix) with ESMTPSA id 883E5812E7; Mon, 29 May 2017 13:13:31 +0200 (CEST) From: Eric Botcazou To: Martin =?utf-8?B?TGnFoWth?= Cc: gcc-patches@gcc.gnu.org, Jakub Jelinek , Richard Biener Subject: Re: [RFC] [PATCH] Introduce configure flag --with-stage1-cflags. Date: Mon, 29 May 2017 11:35:00 -0000 Message-ID: <6237251.LWo8Wt74zX@polaris> User-Agent: KMail/4.14.10 (Linux/3.16.7-53-desktop; KDE/4.14.9; x86_64; ; ) In-Reply-To: <41109217-1bf5-b112-e783-8040196fd410@suse.cz> References: <41109217-1bf5-b112-e783-8040196fd410@suse.cz> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" X-SW-Source: 2017-05/txt/msg02180.txt.bz2 > After a discussion with Richi, using adding "-O2" to STAGE1 cflags with a > recent enough compiler can significantly speed up bootstrap. Thus I'm > suggesting to introduce --with-stage1-cflags where one can provide such > options. -O1 is sufficient in my experience and far less risky than -O2 in this case. -- Eric Botcazou