From owner-freebsd-current@FreeBSD.ORG  Fri Jun  4 00:38:45 2010
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: current@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id A8A341065672;
	Fri,  4 Jun 2010 00:38:45 +0000 (UTC)
	(envelope-from linimon@lonesome.com)
Received: from mail.soaustin.net (lefty.soaustin.net [66.135.55.46])
	by mx1.freebsd.org (Postfix) with ESMTP id 8889F8FC0C;
	Fri,  4 Jun 2010 00:38:45 +0000 (UTC)
Received: by mail.soaustin.net (Postfix, from userid 502)
	id 1EC4D8C08D; Thu,  3 Jun 2010 19:38:45 -0500 (CDT)
Date: Thu, 3 Jun 2010 19:38:45 -0500
From: Mark Linimon <linimon@lonesome.com>
To: Alban Hertroys <dalroi@solfertje.student.utwente.nl>
Message-ID: <20100604003845.GE22064@lonesome.com>
References: <20100529130240.GA99732@freebsd.org>
	<20100530135859.GI83316@deviant.kiev.zoral.com.ua>
	<508DA8CE-749A-46B4-AF0B-392DB08CBBCD@samsco.org>
	<20100531095617.GR83316@deviant.kiev.zoral.com.ua>
	<338E3C69-1542-4F0D-89C4-C96EA3575AEA@solfertje.student.utwente.nl>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <338E3C69-1542-4F0D-89C4-C96EA3575AEA@solfertje.student.utwente.nl>
User-Agent: Mutt/1.5.18 (2008-05-17)
Cc: Kostik Belousov <kostikbel@gmail.com>, Roman Divacky <rdivacky@freebsd.org>,
	current@freebsd.org
Subject: Re: [TESTING]: ClangBSD branch needs testing before the import to
	HEAD
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>, 
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 04 Jun 2010 00:38:45 -0000

On Tue, Jun 01, 2010 at 12:18:41PM +0200, Alban Hertroys wrote:
> Compiler bugs in gcc are probably just as hard to find as compiler bugs
> in clang

There are two types of compiler bug: a) bug that produces bad code; b)
bug that makes the compiler crash.

The latter number seems kind of low right now, but that's probably
because some of them are now obscured by BROKEN tags:

http://portsmon.freebsd.org/portsconcordanceforbuilderror.py?build_error=gcc_bug

For comparison, bitrot that is probably due to older ports not keeping
up with compiler changes is at:

http://portsmon.freebsd.org/portsconcordanceforbuilderror.py?build_error=gcc4_error

I don't have any statistic for "produces bad code".

mcl