https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111672
--- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to Andrew Pinski from comment #5) > Add -save-temps and attach the resulting .i (or .ii) file. This is documented at https://gcc.gnu.org/bugs/ under the section of `What we need `.