https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95560
--- Comment #11 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Marek Polacek <mpola...@gcc.gnu.org>: https://gcc.gnu.org/g:2661635323bd44410f1a154683eccecd2c163b46 commit r11-1391-g2661635323bd44410f1a154683eccecd2c163b46 Author: Marek Polacek <pola...@redhat.com> Date: Tue Jun 16 13:02:23 2020 -0400 c++: Fix ICE in check_local_shadow with enum [PR95560] Another indication that perhaps this warning is emitted too early. We crash because same_type_p gets a null type: we have an enumerator without a fixed underlying type and finish_enum_value_list hasn't yet run. So check if the type is null before calling same_type_p. PR c++/95560 * name-lookup.c (check_local_shadow): Check if types are non-null before calling same_type_p. * g++.dg/warn/Wshadow-local-3.C: New test.