[Bug c++/50791] internal compiler error in dependent_type_p_r

["yar at sibnet dot ru" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50791

--- Comment #2 from yar at sibnet dot ru 2011-10-19 12:54:59 UTC ---
The code in first attachment make cc1plus stack overflow. The code in second
attachment doesn't.

Backtrace:
#0  dependent_type_p (type=0xb7f22960) at ../../gcc/cp/pt.c:17459
#1  0x080766ec in dependent_type_p_r (type=0xb7f22cc0) at
../../gcc/cp/pt.c:17371
#2  dependent_type_p (type=0xb7f22cc0) at ../../gcc/cp/pt.c:17484
#3  0x08076772 in dependent_type_p_r (type=0xb7f22960) at
../../gcc/cp/pt.c:17448
#4  dependent_type_p (type=0xb7f22960) at ../../gcc/cp/pt.c:17484
#5  0x080766ec in dependent_type_p_r (type=0xb7f22cc0) at
../../gcc/cp/pt.c:17371
#6  dependent_type_p (type=0xb7f22cc0) at ../../gcc/cp/pt.c:17484
#7  0x08076772 in dependent_type_p_r (type=0xb7f22960) at
../../gcc/cp/pt.c:17448
#8  dependent_type_p (type=0xb7f22960) at ../../gcc/cp/pt.c:17484
#9  0x080766ec in dependent_type_p_r (type=0xb7f22cc0) at
../../gcc/cp/pt.c:17371
#10 dependent_type_p (type=0xb7f22cc0) at ../../gcc/cp/pt.c:17484
<...>
#261894 dependent_type_p (type=0xb7f22cc0) at ../../gcc/cp/pt.c:17484
#261895 0x08076772 in dependent_type_p_r (type=0xb7f22960) at
../../gcc/cp/pt.c:17448
#261896 dependent_type_p (type=0xb7f22960) at ../../gcc/cp/pt.c:17484
#261897 0x080766ec in dependent_type_p_r (type=0xb7f22cc0) at
../../gcc/cp/pt.c:17371
#261898 dependent_type_p (type=0xb7f22cc0) at ../../gcc/cp/pt.c:17484
#261899 0x08076772 in dependent_type_p_r (type=0xb7f22960) at
../../gcc/cp/pt.c:17448
#261900 dependent_type_p (type=0xb7f22960) at ../../gcc/cp/pt.c:17484
#261901 0x080766ec in dependent_type_p_r (type=0xb7f22cc0) at
../../gcc/cp/pt.c:17371
#261902 dependent_type_p (type=0xb7f22cc0) at ../../gcc/cp/pt.c:17484
#261903 0x08076772 in dependent_type_p_r (type=0xb7f22960) at
../../gcc/cp/pt.c:17448
#261904 dependent_type_p (type=0xb7f22960) at ../../gcc/cp/pt.c:17484
#261905 0x080766ec in dependent_type_p_r (type=0xb7f22cc0) at
../../gcc/cp/pt.c:17371
#261906 dependent_type_p (type=0xb7f22cc0) at ../../gcc/cp/pt.c:17484
#261907 0x08076772 in dependent_type_p_r (type=0xb7f22960) at
../../gcc/cp/pt.c:17448
#261908 dependent_type_p (type=0xb7f22960) at ../../gcc/cp/pt.c:17484
#261909 0x080766ec in dependent_type_p_r (type=0xb7f22cc0) at
../../gcc/cp/pt.c:17371
#261910 dependent_type_p (type=0xb7f22cc0) at ../../gcc/cp/pt.c:17484
#261911 0x08076772 in dependent_type_p_r (type=0xb7f22960) at
../../gcc/cp/pt.c:17448
#261912 dependent_type_p (type=0xb7f22960) at ../../gcc/cp/pt.c:17484
#261913 0x080769f8 in dependent_template_arg_p (arg=0xb7f22960) at
../../gcc/cp/pt.c:17903
#261914 0x08076a89 in any_dependent_template_arguments_p (args=0xb7f2b3d4) at
../../gcc/cp/pt.c:17979
#261915 0x080775e8 in uses_template_parms (t=0xb7f2b3d4) at
../../gcc/cp/pt.c:7045
#261916 0x08077931 in register_specialization (spec=0xb7f2c100,
tmpl=0xb7ec6c98, args=0xb7f2b3d4, is_friend=0 '\000', 
    hash=1919156452) at ../../gcc/cp/pt.c:1280
#261917 0x08079a68 in tsubst_decl (t=0xb7f1c200, args=0xb7f2b3b8, complain=0)
at ../../gcc/cp/pt.c:9214
#261918 0x0808a9a6 in instantiate_template (tmpl=0xb7ec6c98,
orig_args=0xb7f2b3b8, complain=0) at ../../gcc/cp/pt.c:13082
#261919 0x08053221 in add_template_candidate_real (candidates=0xbfffe5d8,
tmpl=0xb7ec6c98, ctype=0x0, explicit_targs=0x0, 
    first_arg=0x0, arglist=0xb7f24a78, return_type=0x0, access_path=0x0,
conversion_path=0x0, flags=3, obj=0x0, strict=DEDUCE_CALL)
    at ../../gcc/cp/call.c:2536
#261920 0x08053487 in add_template_candidate (fns=0xb7f24a8c, args=0xb7f24a78,
explicit_targs=0x0, template_only=0 '\000', 
    conversion_path=0x0, access_path=0x0, flags=3, candidates=0xbfffe5d8) at
../../gcc/cp/call.c:2612
#261921 add_candidates (fns=0xb7f24a8c, args=0xb7f24a78, explicit_targs=0x0,
template_only=0 '\000', conversion_path=0x0, 
    access_path=0x0, flags=3, candidates=0xbfffe5d8) at
../../gcc/cp/call.c:4118
#261922 0x08059fa7 in build_new_op (code=BIT_IOR_EXPR, flags=3,
arg1=0xb7ea4488, arg2=0xb7f271cc, arg3=0x0, 
    overloaded_p=0xbfffe74f "", complain=3) at ../../gcc/cp/call.c:4248
#261923 0x080c3c7b in build_x_binary_op (code=BIT_IOR_EXPR, arg1=0xb7ea4488,
arg1_code=ERROR_MARK, arg2=<value optimized out>, 
    arg2_code=ERROR_MARK, overloaded_p=0xbfffe74f "", complain=3) at
../../gcc/cp/typeck.c:3490
#261924 0x080b2acb in cp_parser_binary_expression (parser=0xb7f25410,
cast_p=<value optimized out>, no_toplevel_fold_p=0 '\000', 
    prec=PREC_NOT_OPERATOR, pidk=0x0) at ../../gcc/cp/parser.c:6464
#261925 0x080b2c77 in cp_parser_assignment_expression (parser=<value optimized
out>, cast_p=<value optimized out>, 
    pidk=<value optimized out>) at ../../gcc/cp/parser.c:6561
#261926 0x080b31a1 in cp_parser_constant_expression (parser=0xb7f25410,
allow_non_constant_p=1 '\001', non_constant_p=0xbfffe85e "")
    at ../../gcc/cp/parser.c:6786
#261927 0x080b34df in cp_parser_initializer_clause (parser=<value optimized
out>, non_constant_p=0xbfffe85e "")
    at ../../gcc/cp/parser.c:15512
#261928 0x080afbca in cp_parser_init_declarator (parser=0xb7f25410,
decl_specifiers=0xbfffe894, checks=0x0, 
    function_definition_allowed_p=0 '\000', member_p=0 '\000',
declares_class_or_enum=0, function_definition_p=0xbfffe8ef "")
    at ../../gcc/cp/parser.c:13708
#261929 0x080b84cd in cp_parser_simple_declaration (parser=0xb7f25410,
function_definition_allowed_p=<value optimized out>)
    at ../../gcc/cp/parser.c:8947
#261930 0x080b894a in cp_parser_block_declaration (parser=0xb7f25410,
statement_p=1 '\001') at ../../gcc/cp/parser.c:8845
#261931 0x080b90f1 in cp_parser_declaration_statement (parser=<value optimized
out>) at ../../gcc/cp/parser.c:8502
#261932 0x080ae6e1 in cp_parser_statement (parser=0xb7f25410,
in_statement_expr=0x0, in_compound=<value optimized out>, if_p=0x0)
    at ../../gcc/cp/parser.c:7676
#261933 0x080af164 in cp_parser_statement_seq_opt (parser=0xb7f25410,
in_statement_expr=0x0) at ../../gcc/cp/parser.c:7928
#261934 0x080af1db in cp_parser_compound_statement (parser=0xb7f25410,
in_statement_expr=0x0, in_try=<value optimized out>)
    at ../../gcc/cp/parser.c:7885
#261935 0x080b91ba in cp_parser_ctor_initializer_opt_and_function_body
(parser=0xb7f25410) at ../../gcc/cp/parser.c:15413
#261936 0x080af3a2 in cp_parser_function_definition_after_declarator
(parser=0xb7f25410, inline_p=0 '\000')
    at ../../gcc/cp/parser.c:18653
#261937 0x080afd67 in
cp_parser_function_definition_from_specifiers_and_declarator
(parser=0xb7f25410, 
    decl_specifiers=<value optimized out>, checks=0x0,
function_definition_allowed_p=1 '\001', member_p=0 '\000', 
    declares_class_or_enum=0, 
    function_definition_p=0xbfffebff
"\001P\267\375\267\216ACN8\354\377\277\020T\362\267D\304", <incomplete sequence
\345\267>)
    at ../../gcc/cp/parser.c:18582
#261938 cp_parser_init_declarator (parser=0xb7f25410, decl_specifiers=<value
optimized out>, checks=0x0, 
    function_definition_allowed_p=1 '\001', member_p=0 '\000',
declares_class_or_enum=0, 
    function_definition_p=0xbfffebff
"\001P\267\375\267\216ACN8\354\377\277\020T\362\267D\304", <incomplete sequence
\345\267>)
    at ../../gcc/cp/parser.c:13550
#261939 0x080b84cd in cp_parser_simple_declaration (parser=0xb7f25410,
function_definition_allowed_p=<value optimized out>)
    at ../../gcc/cp/parser.c:8947
#261940 0x080b894a in cp_parser_block_declaration (parser=0xb7f25410,
statement_p=0 '\000') at ../../gcc/cp/parser.c:8845
#261941 0x080bd9fd in cp_parser_declaration (parser=0xb7f25410) at
../../gcc/cp/parser.c:8750
#261942 0x080bd6f4 in cp_parser_declaration_seq_opt (parser=0xb7f25410) at
../../gcc/cp/parser.c:8641
#261943 0x080be25b in cp_parser_translation_unit () at
../../gcc/cp/parser.c:3091
#261944 c_parse_file () at ../../gcc/cp/parser.c:23173
#261945 0x081398f5 in c_common_parse_file (set_yydebug=0) at
../../gcc/c-opts.c:1284
#261946 0x08351693 in compile_file (argc=14, argv=0xbfffeeb4) at
../../gcc/toplev.c:1053
#261947 do_compile (argc=14, argv=0xbfffeeb4) at ../../gcc/toplev.c:2419
#261948 toplev_main (argc=14, argv=0xbfffeeb4) at ../../gcc/toplev.c:2461
#261949 0x0814014b in main (argc=14, argv=0xbfffeeb4) at ../../gcc/main.c:35