https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81899
Bug ID: 81899
Summary: [8 Regression] ICE: Segmentation fault
Product: gcc
Version: 8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: trippels at gcc dot gnu.org
Target Milestone: ---
% cat auto_switch_lexerstate.ii
template <int> struct bool_;
template <typename = bool_<0>> struct token;
template <typename,
template <typename, typename, typename, typename> class FunctorData,
typename>
struct functor {
friend FunctorData<int, int, int, int>;
void foo();
};
template <typename, typename, typename, typename> struct data;
template<> void functor<token<>, data, bool_<0>>::foo();
% g++ -c auto_switch_lexerstate.ii
auto_switch_lexerstate.ii: In instantiation of ‘struct functor<token<>, data,
bool_<0> >’:
auto_switch_lexerstate.ii:11:49: required from here
auto_switch_lexerstate.ii:6:16: internal compiler error: Segmentation fault
struct functor {
^
0x10ba3023 crash_signal
../../gcc/gcc/toplev.c:341
0x1044d53c instantiate_class_template_1
../../gcc/gcc/cp/pt.c:10727
0x1044d53c instantiate_class_template(tree_node*)
../../gcc/gcc/cp/pt.c:10892
0x104c1ceb complete_type(tree_node*)
../../gcc/gcc/cp/typeck.c:136
0x103a69e7 cp_parser_nested_name_specifier_opt
../../gcc/gcc/cp/parser.c:6269
0x103a7833 cp_parser_nested_name_specifier
../../gcc/gcc/cp/parser.c:6332
0x103a794b cp_parser_ptr_operator
../../gcc/gcc/cp/parser.c:20451
0x103aac0b cp_parser_declarator
../../gcc/gcc/cp/parser.c:19771
0x103bf7ab cp_parser_init_declarator
../../gcc/gcc/cp/parser.c:19335
0x103c0b53 cp_parser_single_declaration
../../gcc/gcc/cp/parser.c:27053
0x103c1d73 cp_parser_explicit_specialization
../../gcc/gcc/cp/parser.c:16619
0x103ce603 cp_parser_declaration
../../gcc/gcc/cp/parser.c:12720
0x103cc6ef cp_parser_declaration_seq_opt
../../gcc/gcc/cp/parser.c:12650
0x103ccaeb cp_parser_translation_unit
../../gcc/gcc/cp/parser.c:4387
0x103ccaeb c_parse_file()
../../gcc/gcc/cp/parser.c:38894
0x10563ee7 c_common_parse_file()
../../gcc/gcc/c-family/c-opts.c:1106
