https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91646
--- Comment #7 from G. Steinmetz <gs...@t-online.de> --- Created attachment 46816 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=46816&action=edit Input "3 3", result test_3_3.f90 Enclosed are generators to systematically test the facts. Please find attached two result files, e.g. ready to compile test_3_3.f90 $ gfortran generator_module_hierarchy.f90 -o gmh $ $ echo "3 3" > in $ ./gmh < in > test_3_3.f90 $ $ time gfortran -c test_3_3.f90 ...