linux-kernel - Re: [PATCH 01/10] Add support for GCC-4.5's __builtin

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Message-Id: <200909111633.00665.mb@bu3sch.de>
Date:	Fri, 11 Sep 2009 16:32:58 +0200
From:	Michael Buesch <mb@...sch.de>
To:	linuxppc-dev@...ts.ozlabs.org
Cc:	David Daney <ddaney@...iumnetworks.com>,
	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	linux-mips@...ux-mips.org,
	Heiko Carstens <heiko.carstens@...ibm.com>,
	linuxppc-dev@...abs.org, Paul Mackerras <paulus@...ba.org>,
	"H. Peter Anvin" <hpa@...or.com>, linux-s390@...r.kernel.org,
	linux-am33-list@...hat.com, Helge Deller <deller@....de>,
	x86@...nel.org, Ingo Molnar <mingo@...hat.com>,
	Mike Frysinger <vapier@...too.org>,
	Ivan Kokshaysky <ink@...assic.park.msu.ru>,
	uclinux-dist-devel@...ckfin.uclinux.org,
	Thomas Gleixner <tglx@...utronix.de>,
	Richard Henderson <rth@...ddle.net>,
	Haavard Skinnemoen <hskinnemoen@...el.com>,
	linux-parisc@...r.kernel.org, linux-kernel@...r.kernel.org,
	ralf@...ux-mips.org, Kyle McMartin <kyle@...artin.ca>,
	linux-alpha@...r.kernel.org,
	Martin Schwidefsky <schwidefsky@...ibm.com>,
	linux390@...ibm.com,
	Koichi Yasutake <yasutake.koichi@...panasonic.com>
Subject: Re: [PATCH 01/10] Add support for GCC-4.5's __builtin_unreachable() to compiler.h

On Friday 11 September 2009 01:56:42 David Daney wrote:
> +/* Unreachable code */
> +#ifndef unreachable
> +# define unreachable() do { for (;;) ; } while (0)
> +#endif

# define unreachable() do { } while (1)

? :)

-- 
Greetings, Michael.
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