From:	Nate Eldredge <neldredge AT hmc DOT edu>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Compiler optimization bug
Date:	12 Dec 1999 13:48:09 -0800
Organization:	InterWorld Communications
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"Marp" <Marp AT 0 DOT 0 DOT 0 DOT 0> writes:

> Robert Ruehlmann <rr9 AT angband DOT org> wrote in message
> news:830aq2$68s$1 AT news-int DOT gatech DOT edu...
> > I think I've found a bug in the DJGPP compiler (gcc 2.95.2).  When
> optimized
> > with -O2 the following small sample program goes into an infinite loop.
> > Debugging with gdb shows strange behaviour like modifications of the
> 'size'
> > variable.
> >
> > <-- cut here -->
> > static void bug(int size, int tries)
> 
> try changing this line to this instead:
> 
> static void bug(volatile int size, int tries)

That's a workaround, not a fix.

-- 

Nate Eldredge
neldredge AT hmc DOT edu

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