https://gcc.gnu.org/bugzilla/show_bug.cgi?id=72813
--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Created attachment 40486 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40486&action=edit gcc7-pr72813-2.patch The other option (on IRC Richard says *.s file for PCH doesn't make sense). In the case the file remains (i.e. -S or -save-temps), it will contain just .file directive and nothing else.