Re: [avr-libc-dev] AVR toolset critical issues

[E. Weddington]

Paul Schlie wrote:

> > From: "E. Weddington" <address@hidden>
> > E. Weddington wrote:
> >    
> >
> > Ok everybody take a look at this on the GCC list:
> > <http://gcc.gnu.org/ml/gcc/2004-11/msg00775.html>
> >
> > We don't have that much time to take care of these issues. At the very
> > least can we get the patches for new devices into the toolset?
> >    
>
> Which also implies that near term tweaks to avr's supported type sizes
> for 4.0 are also unlikely, although could be supported for 4.1 if generally
> desired.
>
>  
Probably, yes.

> (and somewhat related, upon reviewing things, 64-bit wide types may need to
> be supported in only a constrained way, i.e. by possibly restricting one of
> the source operands to memory, as supporting generalized three operand
> register based 64-bit operations would otherwise seem to require too much
> of the register file to be spilled to memory to likely be considered
> productive; but haven't figured out how to best describe this reasonably in
> rtl yet.)
>
>  
This sounds reasonable.

Eric