RE: [avr-gcc-list] '-morder' option with Avr-libc: comparison table

[Weddington, Eric]

> -----Original Message-----
> From: 
> address@hidden 
> [mailto:address@hidden
> org] On Behalf Of Joerg Wunsch
> Sent: Monday, January 14, 2008 12:30 PM
> To: address@hidden
> Subject: Re: [avr-gcc-list] '-morder' option with Avr-libc: 
> comparison table
> 
> "Weddington, Eric" <address@hidden> wrote:
> 
> > -frename-registers: "This optimization will most benefit processors
> > with lots of registers.", which the AVR qualifies for "lots of
> > registers".
> 
> Yes, sure, it is.  But that's also what makes debugging highly
> optimized code a little annoying to those people who are used to
> architectures with almost no free registers, where all your C
> variables are usually reflected 1:1 in RAM.

Sure, that's the trade-off. I just wasn't aware of that switch, and that
it does seem to help make smaller code in certain cases. It would be
nice to know if it is a consistent win on code size for the AVR.

Eric W.