[Bug c++/59112] New: [c++1y] ICE using auto as parameter in local class

[reichelt at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59112

            Bug ID: 59112
           Summary: [c++1y] ICE using auto as parameter in local class
           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 (invalid ?) code snippet (compiled with "-std=c++1y") triggers an
ICE on trunk:

====================
void foo()
{
  struct A
  {
    A(auto) {}
  };
}
====================

bug.cc: In function 'void foo()':
bug.cc:5:14: internal compiler error: in check_member_template, at
cp/decl2.c:505
     A(auto) {}
              ^
0x61e8e9 check_member_template(tree_node*)
        ../../gcc/gcc/cp/decl2.c:505
0x59550b finish_member_template_decl(tree_node*)
        ../../gcc/gcc/cp/pt.c:291
0x63dd49 finish_fully_implicit_template
        ../../gcc/gcc/cp/parser.c:31363
0x66969e cp_parser_member_declaration
        ../../gcc/gcc/cp/parser.c:20287
0x6492ad cp_parser_member_specification_opt
        ../../gcc/gcc/cp/parser.c:19850
0x6492ad cp_parser_class_specifier_1
        ../../gcc/gcc/cp/parser.c:19094
0x6492ad cp_parser_class_specifier
        ../../gcc/gcc/cp/parser.c:19321
0x6492ad cp_parser_type_specifier
        ../../gcc/gcc/cp/parser.c:14215
0x661b57 cp_parser_decl_specifier_seq
        ../../gcc/gcc/cp/parser.c:11460
0x6681d9 cp_parser_simple_declaration
        ../../gcc/gcc/cp/parser.c:11050
0x64c7b0 cp_parser_block_declaration
        ../../gcc/gcc/cp/parser.c:10999
0x64d8d3 cp_parser_declaration_statement
        ../../gcc/gcc/cp/parser.c:10646
0x64df47 cp_parser_statement
        ../../gcc/gcc/cp/parser.c:9387
0x64ec49 cp_parser_statement_seq_opt
        ../../gcc/gcc/cp/parser.c:9665
0x64edbe cp_parser_compound_statement
        ../../gcc/gcc/cp/parser.c:9619
0x66248b cp_parser_function_body
        ../../gcc/gcc/cp/parser.c:18525
0x66248b cp_parser_ctor_initializer_opt_and_function_body
        ../../gcc/gcc/cp/parser.c:18561
0x6662c3 cp_parser_function_definition_after_declarator
        ../../gcc/gcc/cp/parser.c:22593
0x667102 cp_parser_function_definition_from_specifiers_and_declarator
        ../../gcc/gcc/cp/parser.c:22505
0x667102 cp_parser_init_declarator
        ../../gcc/gcc/cp/parser.c:16506
Please submit a full bug report, [etc.]