https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61482
--- Comment #3 from Trevor Saunders <tsaunders at mozilla dot com> --- Created attachment 32938 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=32938&action=edit test case Its pretty close to undreadable, but its fairly reduced, it started at ~400k lines.