https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119694
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Note, if SHOW_PARSE is something like dumping the semantic IL, then the usual way is have a compiler option and dump the details into a file. Either as messages into the -fdump-tree-original file or see e.g. Fortran FE -fdump-parse-tree option.
