r189218 - Simplify now that -O4 just maps to -O3 and -O is an alias of -O2.

[Daniel Dunbar]

On Sep 3, 2013, at 6:57, "Rafael Espíndola" <rafael.espindola at gmail.com> wrote:

>> I find that a bit surprising, given that -O should mean -O1.
>> Daniel -- you changed it to mean -O2 in r82131. Any idea why?
>
> Ping.

This is something Chris requested, IIRC. I'm not sure I remember the
motivation beyond that.

 - Daniel

>
> Cheers,
> Rafael