r189369 - Warn that -O4 is the same as -O3.

[Sean Silva]

On Tue, Aug 27, 2013 at 4:41 PM, Rafael Espíndola <
rafael.espindola at gmail.com> wrote:

> > Any reason not to remove this, and instead look at the argument to the
> OPT_O
> > option?
> >
> > (Likewise, why do we have a separate -O0 flag?)
>
> Just convenience. It is easier to write
>
> A->getOption().matches(options::OPT_O4)
>
> Than to check it matches OPT_O, get the value, check if it is integer and
> == 4.
>


Maybe we should warn for all integers >= 4 though.

-- Sean Silva


>
> Cheers,
> Rafael
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