Call GNU ld with -O*

[Marc Glisse]

On Fri, 12 Jul 2013, Ian Lance Taylor wrote:

> On Fri, Jul 12, 2013 at 7:54 AM, Marc Glisse <marc.glisse@inria.fr> wrote:
>>
>> this patch makes the driver pass -O2 to GNU ld if gcc was called with -O3
>> (or more), -Ofast or -Os.
>
> I don't understand why that is a good idea.

Well, you thought it was 3 years ago ;-)
http://gcc.gnu.org/ml/gcc/2010-05/msg00193.html

> The linker -O option is only distantly related to the compiler -O 
> option.  It was probably a mistake to have a linker -O option at all.

Doesn't the linker produce something that is faster to link and/or 
smaller, with this flag?

-- 
Marc Glisse