https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82197
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |INVALID --- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- https://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html Is the trunk gcc documentation. If you are using 6.4.0 or 7.2.0 each have their own documentation. That is on the website too.