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Date:      Sat, 3 Aug 2002 12:32:49 -0400
From:      Mike Barcroft <mike@FreeBSD.org>
To:        Andrew Kolchoogin <andrew@snark.rinet.ru>
Cc:        David O'Brien <obrien@FreeBSD.ORG>, current@FreeBSD.ORG
Subject:   Re: Comments on Release Building for -current
Message-ID:  <20020803123249.B70372@espresso.q9media.com>
In-Reply-To: <20020802082336.GA12034@snark.rinet.ru>; from andrew@snark.rinet.ru on Fri, Aug 02, 2002 at 12:23:36PM %2B0400
References:  <20020801173513.GC82778@dragon.nuxi.com> <20020802041414.A3616-100000@gamplex.bde.org> <20020802073955.GA88247@dragon.nuxi.com> <20020802082336.GA12034@snark.rinet.ru>

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Andrew Kolchoogin <andrew@snark.rinet.ru> writes:
> David,
> 
> On Fri, Aug 02, 2002 at 12:39:55AM -0700, David O'Brien wrote:
> 
> > The rest of the GCC using world can use -O2 on their code.  We are the
> > only ones that have so much trouble with it.  It is probably due to our
> > bugs, not GCC's.
> sorry, but some time ago I read here that gcc -O2 breaks our printf() in
> libc. I haven't find any assembler code in /usr/src/lib/libc/stdio/vfprintf.c,
> as such, if some C compiler can't handle VALID and STANDARDS-COMPLIANT C code,
> this compiler is broken. Isn't it?
> 
> Indeed, all of FreeBSD users could help to catch such a bug in gcc optimizer
> code. :)

If someone could find the small segment of code where the optimizer
screws up, and write a small program to demonstrate the problem, we
would have a good chance of it getting fixed.

Best regards,
Mike Barcroft

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