https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114565
--- Comment #2 from Gaius Mulley <gaius at gcc dot gnu.org> --- Created attachment 57851 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=57851&action=edit Proposed patch Here is a proposed patch which introduces the option -fm2-debug-trace= and allows a comma separated list containing: quad,token,line,all. It currently dumps progress to stdout and this would be expected to change once PR113836 is complete. In short the progress data should also be dumped to file and flushed on every newline.