https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99088
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> --- With -fno-checking, GCC compiling errors out really quickly. Without -fno-checking on the trunk takes around 20s. With -fno-checking on the trunk takes 1.2s. I don't think there is anything to fix here really. checking will always be slower.