Re: [avr-gcc-list] SIGNAL and INTERRUPT overhead

[Royce Pereira]

Hello,

On Mon, 22 Aug 2005 23:10:22 +0530, Benjamin Titzer <address@hidden>  
wrote:

> > Another peephole optimisation is if a function ends like:
> >
> >                 rcall   label
> >         ret
>
> This is called tail-call elimination and has been known since the days of
> Lisp. Usually this optimization is omitted because it makes it harder to
> debug code and doesn't seem to be particularly popular with those
> writing compilers for procedural languages.

In that case, there could be a switch (or integrated into one of the  
existing switches)  to turn it on or off, . The benefits of this  
optimisation is quite real in terms of stack usage & speed.

--Royce.
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