https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67588
--- Comment #7 from Vittorio Zecca <zeccav at gmail dot com> --- use_list is local to the function gfc_match_submodule and it is already reinitialized in the for statement at line 806. So there is a duplication. On return at line 812 it is then lost. Maybe optimization would expunge it anyway.
