http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45375
--- Comment #203 from Markus Trippelsdorf <trippels at gcc dot gnu.org> --- (In reply to H.J. Lu from comment #202) > LTO miscompiles 435.gromacs in SPEC CPU 2006 on x32 with > > -mx32 -O3 -funroll-loops -ffast-math > > since r208165 (PR 60418). Can you try r208163? Yes. Unfortunately with r208163 Firefox still crashes on startup.