https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97918
--- Comment #14 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-9 branch has been updated by Jason Merrill <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:196716c10bcd4074c404cc8f13bf8d9b31c76238 commit r9-9067-g196716c10bcd4074c404cc8f13bf8d9b31c76238 Author: Jason Merrill <ja...@redhat.com> Date: Fri Nov 20 15:20:45 2020 -0500 dwarf2: ICE with local class in unused function [PR97918] Here, since we only mention bar<B>, we never emit debug information for it. But we do emit debug information for H<J>::h, so we need to refer to the debug info for bar<B>::J even though there is no bar<B>. We deal with this sort of thing in dwarf2out with the limbo_die_list; parentless dies like J get attached to the CU at EOF. But here, we were flushing the limbo list, then generating the template argument DIE for H<J> that refers to J, which adds J to the limbo list, too late to be flushed. So let's flush a little later. gcc/ChangeLog: PR c++/97918 * dwarf2out.c (dwarf2out_early_finish): flush_limbo_die_list after gen_scheduled_generic_parms_dies. gcc/testsuite/ChangeLog: PR c++/97918 * g++.dg/debug/localclass2.C: New test.
