https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115990
--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to Aaron Ballman from comment #3). > > > > People will never read the documentation either way anyways. > > Agreed, that's part of why we're deprecating. That is a real bad excuse really. Also -Ofast for gcc is more than just -O3 -ffast-math. It enables unrolling loops and more.