http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45375
--- Comment #145 from Jan Hubicka <hubicka at ucw dot cz> 2012-12-01 22:09:07 UTC --- > > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45375 > > --- Comment #144 from Markus Trippelsdorf <markus at trippelsdorf dot de> > 2012-12-01 12:39:30 UTC --- > It looks like there is a LTO code-size regression on trunk: > (size of libxul.so, build without elfhack): > > gcc lto/pgo : size: 42204584 | Kraken bench: 2723.9ms +/- 0.9% About LTO+PGO please be sure that you have the Teresa's fix from this Friday in your tree. > gcc : size: 34072808 | Kraken bench: 2804.3ms +/- 1.6% Is LTO w/o PGO bigger than previous builds? > clang lto : size: 35071848 | Kraken bench: 2804.2ms +/- 1.2% > clang : size: 36797384 | Kraken bench: 2819.6ms +/- 1.4%