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From: Basile STARYNKEVITCH <basile@starynkevitch.net>
To: "Peter A. Felvegi" <petschy@praire-chicken.com>
Cc: gcc@gcc.gnu.org
Subject: Re: array subscript is below array bounds : false positive?
Date: Tue, 15 Sep 2009 10:30:00 -0000	[thread overview]
Message-ID: <4AAF6CB6.5010607@starynkevitch.net> (raw)
In-Reply-To: <4AAF6A13.2090303@praire-chicken.com>

Peter A. Felvegi wrote:
> Hello,
> ---->8---->8---->8---->8---->8---->8---->8---->8---->8---->8----
> #define ASSERT(x)    if (x) { } else { __asm__("int $0x03"); }
With the trunk, that is future 4.5, I would suggest
#define ASSERT(x) if (x) {} else {__builtin_unreachable ();}

or at least, if the int$03 is important,

#define ASSERT(x) if (!(x)) \
    { volatile __asm__("int $0x03");__builtin_unreachable ();}

See
http://gcc.gnu.org/onlinedocs/gcc/Other-Builtins.html#Other-Builtins

Regards.

-- 
Basile STARYNKEVITCH         http://starynkevitch.net/Basile/
email: basile<at>starynkevitch<dot>net mobile: +33 6 8501 2359
8, rue de la Faiencerie, 92340 Bourg La Reine, France
*** opinions {are only mines, sont seulement les miennes} ***

  reply	other threads:[~2009-09-15 10:30 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-09-15 10:19 Peter A. Felvegi
2009-09-15 10:30 ` Basile STARYNKEVITCH [this message]
2009-09-15 14:56 ` Ian Lance Taylor
2009-09-15 16:19   ` Richard Henderson

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