RE: [avr-gcc-list] -O vs. -O2

[Eric Weddington]

> -----Original Message-----
> From: Nathan Cooprider [mailto:address@hidden
> Sent: Thursday, July 26, 2007 4:55 PM
> To: Eric Weddington
> Cc: address@hidden
> Subject: Re: [avr-gcc-list] -O vs. -O2
>
> Eric Weddington wrote:
> >> -----Original Message-----
> >> From:
> >> address@hidden
> >> [mailto:address@hidden
> >> org] On Behalf Of Nathan Cooprider
> >> Sent: Thursday, July 26, 2007 4:08 PM
> >> To: address@hidden
> >> Subject: Re: [avr-gcc-list] -O vs. -O2
> >>
> >> This might also be useful information too:
> >>
> >> $ avr-gcc -v Reading specs from
> >> /home/coop/local/bin/../lib/gcc/avr/3.4.3/specs Configured with:
> >> ./configure --disable-nls --target=avr --enable-languages=c
> >> --prefix=/home/coop/local/
> >> Thread model: single
> >> gcc version 3.4.3
> >>
> >
> > Have you tried a more recent version, such as 4.1.2? Or
> perhaps 4.2.1?
> > Otherwise we might be chasing an old bug...
> >
>
> Right. Don't go chasing this bug. The "real" question I want
> to ask is
> if there is a way to describe -O2 as -O plus additional flags? If so,
> what are the flags?

I always hate to say this, but the answer to that might be "RTFM". :-)
Seriously, it should be in the docs somewhere, if not, then ask for a
pointer on the gcc list itself.

Eric