https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101037
--- Comment #2 from Björn Sundin <bjornsundin02 at gmail dot com> --- Created attachment 50987 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=50987&action=edit A short ping-pong example program. The preprocessed file was too large so I attached the original C++ source instead.