[Bug c++/47388] [4.6 Regression] ICE: in begin_for_stmt, at cp/semantics.c:863 with -fno-for-scope and for(;;) inside a template

["zsojka at seznam dot cz" <gcc-bugzilla@gcc.gnu.org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47388

--- Comment #1 from Zdenek Sojka <zsojka at seznam dot cz> 2011-01-21 01:02:19 UTC ---
Created attachment 23057
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23057
range-for testcase

Probably the same problem.

$ gcc -fno-for-scope -std=c++0x testcase.C 
testcase.C: In function 'void foo(const T&)':
testcase.C:3:16: internal compiler error: in begin_range_for_stmt, at
cp/semantics.c:965
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

(gdb) bt
#0  fancy_abort (file=0x11f4eb0 "/mnt/svn/gcc-trunk/gcc/cp/semantics.c",
line=965, 
    function=0x11f7910 "begin_range_for_stmt") at
/mnt/svn/gcc-trunk/gcc/diagnostic.c:892
#1  0x000000000062b14b in begin_range_for_stmt (scope=0x0, init=0x7ffff5d2caa0)
at /mnt/svn/gcc-trunk/gcc/cp/semantics.c:965
#2  0x00000000005ca742 in cp_parser_range_for (parser=0x7ffff5d47108,
in_statement_expr=0x0, 
    in_compound=<value optimized out>, if_p=<value optimized out>) at
/mnt/svn/gcc-trunk/gcc/cp/parser.c:8775
#3  cp_parser_for (parser=0x7ffff5d47108, in_statement_expr=0x0,
in_compound=<value optimized out>, 
    if_p=<value optimized out>) at /mnt/svn/gcc-trunk/gcc/cp/parser.c:8715
#4  cp_parser_iteration_statement (parser=0x7ffff5d47108,
in_statement_expr=0x0, in_compound=<value optimized out>, 
    if_p=<value optimized out>) at /mnt/svn/gcc-trunk/gcc/cp/parser.c:9016
#5  cp_parser_statement (parser=0x7ffff5d47108, in_statement_expr=0x0,
in_compound=<value optimized out>, 
    if_p=<value optimized out>) at /mnt/svn/gcc-trunk/gcc/cp/parser.c:8075
#6  0x00000000005cab66 in cp_parser_statement_seq_opt (parser=0x7ffff5d47108,
in_statement_expr=0x0)
    at /mnt/svn/gcc-trunk/gcc/cp/parser.c:8416
#7  0x00000000005cac9c in cp_parser_compound_statement (parser=0x7ffff5d47108,
in_statement_expr=0x0, 
    in_try=<value optimized out>) at /mnt/svn/gcc-trunk/gcc/cp/parser.c:8370
#8  0x00000000005de70c in cp_parser_function_body (parser=0x7ffff5d47108) at
/mnt/svn/gcc-trunk/gcc/cp/parser.c:16399
#9  cp_parser_ctor_initializer_opt_and_function_body (parser=0x7ffff5d47108) at
/mnt/svn/gcc-trunk/gcc/cp/parser.c:16436
#10 0x00000000005dee82 in cp_parser_function_definition_after_declarator
(parser=0x7ffff5d47108, inline_p=0 '\000')
    at /mnt/svn/gcc-trunk/gcc/cp/parser.c:19842
#11 0x00000000005e04ce in
cp_parser_function_definition_from_specifiers_and_declarator
(parser=0x7ffff5d47108, 
    decl_specifiers=0x7fffffffd790, checks=0x0, function_definition_allowed_p=1
'\001', member_p=0 '\000', 
    declares_class_or_enum=0, function_definition_p=0x7fffffffd7ff
"\001\bq\324\365\377\177", maybe_range_for_decl=0x0)
    at /mnt/svn/gcc-trunk/gcc/cp/parser.c:19771
#12 cp_parser_init_declarator (parser=0x7ffff5d47108,
decl_specifiers=0x7fffffffd790, checks=0x0, 
    function_definition_allowed_p=1 '\001', member_p=0 '\000',
declares_class_or_enum=0, 
    function_definition_p=0x7fffffffd7ff "\001\bq\324\365\377\177",
maybe_range_for_decl=0x0)
    at /mnt/svn/gcc-trunk/gcc/cp/parser.c:14538
#13 0x00000000005e4c75 in cp_parser_single_declaration (parser=0x7ffff5d47108,
checks=0x0, member_p=0 '\000', 
    explicit_specialization_p=0 '\000', friend_p=0x7fffffffd85f "") at
/mnt/svn/gcc-trunk/gcc/cp/parser.c:20096
#14 0x00000000005e4fd6 in cp_parser_template_declaration_after_export
(parser=0x7ffff5d47108, member_p=0 '\000')
    at /mnt/svn/gcc-trunk/gcc/cp/parser.c:19946
#15 0x00000000005e9a3a in cp_parser_declaration (parser=0x7ffff5d47108) at
/mnt/svn/gcc-trunk/gcc/cp/parser.c:9444
#16 cp_parser_declaration (parser=0x7ffff5d47108) at
/mnt/svn/gcc-trunk/gcc/cp/parser.c:9395
#17 0x00000000005e833a in cp_parser_declaration_seq_opt (parser=0x7ffff5d47108)
at /mnt/svn/gcc-trunk/gcc/cp/parser.c:9374
#18 0x00000000005e9e89 in cp_parser_translation_unit () at
/mnt/svn/gcc-trunk/gcc/cp/parser.c:3463
#19 c_parse_file () at /mnt/svn/gcc-trunk/gcc/cp/parser.c:25269
#20 0x00000000006be125 in c_common_parse_file () at
/mnt/svn/gcc-trunk/gcc/c-family/c-opts.c:1071
#21 0x0000000000a213e6 in compile_file (argc=15, argv=0x7fffffffdab8) at
/mnt/svn/gcc-trunk/gcc/toplev.c:579
#22 do_compile (argc=15, argv=0x7fffffffdab8) at
/mnt/svn/gcc-trunk/gcc/toplev.c:1874
#23 toplev_main (argc=15, argv=0x7fffffffdab8) at
/mnt/svn/gcc-trunk/gcc/toplev.c:1937
#24 0x00007ffff65f1bbd in __libc_start_main () from /lib/libc.so.6
#25 0x00000000004fa9d1 in _start ()