[Bug lto/56700] Optimizing at compile and link result in different binary size than only optimizing at link time

[ebotcazou at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56700

Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
                 CC|                            |ebotcazou at gcc dot
                   |                            |gnu.org
         Resolution|                            |INVALID

--- Comment #1 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2013-03-24 11:39:15 UTC ---
> So not optimizing for size during compile leads to worse results than omitting
> lto at all for gcc-4.8
> 
> I thought optimizations can be ommitted completely during compile, when doing
> lto.

Absolutely not, where did you get this info from?  You should pass the same
optimization options at compile and link stage, the compiler will do the rest.