On Wed, 2010-06-30 at 14:23 -0700, Taras Glek wrote: > > I tried 4.5 -O2 and it's actually faster than 4.3 -Os. > > I am happy that -O2 performance is actually pretty good, but -Os > regression is going to hurt on mobile.
Did you try gcc-4.5 -flto -Os or gcc-4.5 -flto -O2? It would be interesting to hear that GCC is able to LTO a program as big as Mozilla! And figures (notably RAM, CPU time, wallclock time for build) would be interesting. Cheers. -- Basile STARYNKEVITCH http://starynkevitch.net/Basile/ email: basile<at>starynkevitch<dot>net mobile: +33 6 8501 2359 8, rue de la Faiencerie, 92340 Bourg La Reine, France *** opinions {are only mines, sont seulement les miennes} ***
