https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108230
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to David Shin from comment #2) > The preprocessed source is 3.5M, which exceeds the file attachment size > limit of 1000K. You can compress it since it is above the max attachment size limit.