http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60383
Bug ID: 60383 Summary: [4.8 Regression] ICE with invalid template specialization Product: gcc Version: 4.9.0 Status: UNCONFIRMED Keywords: error-recovery, ice-on-invalid-code Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: reichelt at gcc dot gnu.org The following invalid testcase triggers an ICE on trunk: ============================================== template<int> struct A { template<typename> struct B { template<typename T> struct B<T*> {}; }; }; A<0>::B<char*> b; ============================================== bug.cc:5:33: error: specialization of 'template<int <anonymous> > template<class> struct A<<anonymous> >::B' must appear at namespace scope template<typename T> struct B<T*> {}; ^ bug.cc:5:33: internal compiler error: in retrieve_specialization, at cp/pt.c:1039 0x6067b0 retrieve_specialization ../../gcc/gcc/cp/pt.c:1036 0x62ff67 tsubst_decl ../../gcc/gcc/cp/pt.c:10351 0x61ecdf tsubst(tree_node*, tree_node*, int, tree_node*) ../../gcc/gcc/cp/pt.c:11489 0x63f2f1 most_specialized_class ../../gcc/gcc/cp/pt.c:18832 0x64ecf9 instantiate_class_template_1 ../../gcc/gcc/cp/pt.c:8867 0x64ecf9 instantiate_class_template(tree_node*) ../../gcc/gcc/cp/pt.c:9399 0x6e1d83 complete_type(tree_node*) ../../gcc/gcc/cp/typeck.c:134 0x5c8e58 start_decl_1(tree_node*, bool) ../../gcc/gcc/cp/decl.c:4719 0x5f1ef7 start_decl(cp_declarator const*, cp_decl_specifier_seq*, int, tree_node*, tree_node*, tree_node**) ../../gcc/gcc/cp/decl.c:4682 0x6ce2be cp_parser_init_declarator ../../gcc/gcc/cp/parser.c:16684 0x6cfd49 cp_parser_simple_declaration ../../gcc/gcc/cp/parser.c:11205 0x6b3003 cp_parser_block_declaration ../../gcc/gcc/cp/parser.c:11086 0x6da2d2 cp_parser_declaration ../../gcc/gcc/cp/parser.c:10983 0x6d8fc8 cp_parser_declaration_seq_opt ../../gcc/gcc/cp/parser.c:10869 0x6da87a cp_parser_translation_unit ../../gcc/gcc/cp/parser.c:4014 0x6da87a c_parse_file() ../../gcc/gcc/cp/parser.c:31590 0x7fa103 c_common_parse_file() ../../gcc/gcc/c-family/c-opts.c:1060 Please submit a full bug report, [etc.]