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From: Andris Pavenis <pavenis AT latnet DOT lv>
Subject: Re: gcc-3.4 and djgpp/src/debug/common/dbgcom.c
Date: Tue, 9 Nov 2004 10:22:08 +0200
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Reply-To: djgpp-workers AT delorie DOT com

On Friday 29 October 2004 19:05, ams AT ludd DOT ltu DOT se wrote:
> According to Andris Pavenis:
> > On Wednesday 27 October 2004 19:43, DJ Delorie wrote:
> > > Can we put it as an input operand of that big asm?  We don't have to
> > > use it, just add it.
> > >
> > > asm("
> > >    ...
> > >    " : "g" (forced_test));
> >
> > Unfortunatelly it doesn't work. Both gcc-3.4.2 and gcc-4.0.0 20041014
> > rejects extended inline assembler outside the procedures.
>
> I suspect that then you could put it in any function... But... Well...
> Is there any reason why we shouldn't use "__attribute__((unused))"?
> Or doesn't that work either?

Tested with gcc-3.4.3 and gcc-4.0.0 20041104.

In both cases __attribute__((unused)) didn't prevent it from optimized out.

Andris