http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60052
Bug ID: 60052 Summary: [c++1y] ICE with auto as member function parameter Product: gcc Version: 4.9.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: reichelt at gcc dot gnu.org The following valid code snippet (compiled with "-std=c++1y") triggers an ICE on trunk: ================================== struct A { void foo(auto); }; void A::foo(auto) {} struct B { void bar(auto); }; ================================== bug.cc:10:11: internal compiler error: Segmentation fault void bar(auto); ^ 0xba9c8f crash_signal ../../gcc/gcc/toplev.c:337 0x6ce47b tree_check ../../gcc/gcc/tree.h:2708 0x6ce47b synthesize_implicit_template_parm ../../gcc/gcc/cp/parser.c:31950 0x6ce47b cp_parser_simple_type_specifier ../../gcc/gcc/cp/parser.c:14504 0x6abcdd cp_parser_type_specifier ../../gcc/gcc/cp/parser.c:14380 0x6c5400 cp_parser_decl_specifier_seq ../../gcc/gcc/cp/parser.c:11547 0x6c79c7 cp_parser_parameter_declaration ../../gcc/gcc/cp/parser.c:18432 0x6c8da1 cp_parser_parameter_declaration_list ../../gcc/gcc/cp/parser.c:18258 0x6c93f2 cp_parser_parameter_declaration_clause ../../gcc/gcc/cp/parser.c:18179 0x6bf3f0 cp_parser_direct_declarator ../../gcc/gcc/cp/parser.c:17072 0x6bf3f0 cp_parser_declarator ../../gcc/gcc/cp/parser.c:16943 0x6a890d cp_parser_member_declaration ../../gcc/gcc/cp/parser.c:20295 0x6abf74 cp_parser_member_specification_opt ../../gcc/gcc/cp/parser.c:19976 0x6abf74 cp_parser_class_specifier_1 ../../gcc/gcc/cp/parser.c:19210 0x6abf74 cp_parser_class_specifier ../../gcc/gcc/cp/parser.c:19437 0x6abf74 cp_parser_type_specifier ../../gcc/gcc/cp/parser.c:14302 0x6c5400 cp_parser_decl_specifier_seq ../../gcc/gcc/cp/parser.c:11547 0x6cbff9 cp_parser_simple_declaration ../../gcc/gcc/cp/parser.c:11137 0x6af4b3 cp_parser_block_declaration ../../gcc/gcc/cp/parser.c:11086 0x6d67b2 cp_parser_declaration ../../gcc/gcc/cp/parser.c:10983 Please submit a full bug report, [etc.]