[Bug c++/80891] [8 Regression] Three new ICEs

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80891

--- Comment #7 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
Thanks for the fixes.
Here is a new issue:

4)

 % cat vf2_sub_graph_iso_test.ii
namespace tuples {
template <class, class> void get();
template <int> void get();
}
using tuples::get;
template <class RandomAccessIterator> void make_iterator_vertex_map() {
  RandomAccessIterator a;
  a, get;
}
template <class> void get();

 % g++ -c vf2_sub_graph_iso_test.ii
vf2_sub_graph_iso_test.ii:10:27: internal compiler error: in ovl_insert, at
cp/tree.c:2173
 template <class> void get();
                           ^
0x8358dc ovl_insert(tree_node*, tree_node*, bool)
        ../../gcc/gcc/cp/tree.c:2172
0x741936 update_binding
        ../../gcc/gcc/cp/name-lookup.c:1692
0x741936 do_pushdecl
        ../../gcc/gcc/cp/name-lookup.c:2338
0x741936 pushdecl(tree_node*, bool)
        ../../gcc/gcc/cp/name-lookup.c:2383
0x7436d3 pushdecl_with_scope_1
        ../../gcc/gcc/cp/name-lookup.c:3255
0x7438af pushdecl_namespace_level(tree_node*, bool)
        ../../gcc/gcc/cp/name-lookup.c:4455
0x7f1d20 push_template_decl_real(tree_node*, bool)
        ../../gcc/gcc/cp/pt.c:5592
0x6c33dc start_decl(cp_declarator const*, cp_decl_specifier_seq*, int,
tree_node*, tree_node*, tree_node**)
        ../../gcc/gcc/cp/decl.c:5097
0x77d6d9 cp_parser_init_declarator
        ../../gcc/gcc/cp/parser.c:19264
0x786077 cp_parser_single_declaration
        ../../gcc/gcc/cp/parser.c:26748
0x78619c cp_parser_template_declaration_after_parameters
        ../../gcc/gcc/cp/parser.c:26352
0x786bd2 cp_parser_explicit_template_declaration
        ../../gcc/gcc/cp/parser.c:26588
0x786bd2 cp_parser_template_declaration_after_export
        ../../gcc/gcc/cp/parser.c:26606
0x7871d9 cp_parser_declaration
        ../../gcc/gcc/cp/parser.c:12472
0x7874f6 cp_parser_declaration_seq_opt
        ../../gcc/gcc/cp/parser.c:12399
0x787828 cp_parser_translation_unit
        ../../gcc/gcc/cp/parser.c:4364
0x787828 c_parse_file()
        ../../gcc/gcc/cp/parser.c:38475
0x8caac6 c_common_parse_file()
        ../../gcc/gcc/c-family/c-opts.c:1104