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RE: [avr-gcc-list] Gcc bug??

From: Brian Cuthie
Subject: RE: [avr-gcc-list] Gcc bug??
Date: Wed, 10 Mar 2004 11:12:31 -0500

Will be happy to do that. But was hoping for someone to look over my
shoulder and tell me if this looks to be truly broken, or if I'm confused in
some way.

BTW, it's possible that this is AvrX related. I did find a small bug in AvrX
recently where interrupt handlers get a context with a bad R1 value (which
should always be zero). But for a variety of reasons I don't think that's
the problem here. 



> -----Original Message-----
> From: E. Weddington [mailto:address@hidden 
> Sent: Wednesday, March 10, 2004 11:10 AM
> To: address@hidden; address@hidden
> Subject: Re: [avr-gcc-list] Gcc bug??
> On 10 Mar 2004 at 10:30, Brian Cuthie wrote:
> > 
> > I've got an interrupt handler that contains a switch 
> statement. With 
> > -O optimization, it seems to work fine. Without any 
> optimization (no 
> > -O) the whole machine crashes within seconds.  Looking at the code 
> > generated by the compiler, I'm puzzled over how the 
> unoptimized version could ever work.
> > 
> > Any thoughts?
> > 
> If you think you have a GCC bug on your hands, please fill 
> out a GCC bug report.
> The web page here:
> <http://gcc.gnu.org/bugs.html>
> tells you what's needed.
> Here'e the link to GCC Bugzilla to fill out a report:
> <http://gcc.gnu.org/bugzilla/>
> Both of these links can be found on the GCC home page:
> <http://gcc.gnu.org/>

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