http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47207
Summary: [4.6 Regression] [C++0x] ICE: in decl_constant_var_p,
at cp/decl2.c:3563 on invalid code
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: zso...@seznam.cz
CC: g...@abeckmann.de
----- testcase.C -----
constexpr X (X);
----------------------
The same as PR46564 comment #2, but probably different than PR46564 comment #0
Compiler output:
$ gcc -std=c++0x testcase.C
testcase.C:1:14: error: ISO C++ forbids declaration of 'X' with no type
[-fpermissive]
testcase.C:1:14: internal compiler error: in decl_constant_var_p, at
cp/decl2.c:3563
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=0x1210188
"/usr/portage/distfiles/svn-src/gcc/trunk/gcc/cp/decl2.c", line=3563,
function=0x1211120 "decl_constant_var_p") at
/usr/portage/distfiles/svn-src/gcc/trunk/gcc/diagnostic.c:892
#1 0x00000000005b69b8 in decl_constant_var_p (decl=0x7ffff7ee71e0)
at /usr/portage/distfiles/svn-src/gcc/trunk/gcc/cp/decl2.c:3563
#2 0x0000000000644318 in finish_id_expression (id_expression=0x7ffff5cdaf78,
decl=0x7ffff7ee71e0, scope=0x0,
idk=0x7fffffffd36c, integral_constant_expression_p=1 '\001',
allow_non_integral_constant_expression_p=1 '\001',
non_integral_constant_expression_p=0x7ffff5cdc02d "", template_p=0 '\000',
done=1 '\001', address_p=0 '\000',
template_arg_p=0 '\000', error_msg=0x7fffffffd2e8, location=102)
at /usr/portage/distfiles/svn-src/gcc/trunk/gcc/cp/semantics.c:3105
#3 0x00000000005d8fdc in cp_parser_primary_expression (parser=0x7ffff5cdc000,
address_p=0 '\000',
cast_p=<value optimized out>, template_arg_p=0 '\000', idk=0x7fffffffd36c)
at /usr/portage/distfiles/svn-src/gcc/trunk/gcc/cp/parser.c:4005
#4 0x00000000005d9c40 in cp_parser_postfix_expression (parser=0x7ffff5cdc000,
address_p=0 '\000', cast_p=0 '\000',
member_access_only_p=0 '\000', pidk_return=0x0) at
/usr/portage/distfiles/svn-src/gcc/trunk/gcc/cp/parser.c:5163
#5 0x00000000005da8bb in cp_parser_unary_expression (parser=0x7ffff5cdc000,
address_p=0 '\000', cast_p=0 '\000', pidk=0x0)
at /usr/portage/distfiles/svn-src/gcc/trunk/gcc/cp/parser.c:6147
#6 0x00000000005db188 in cp_parser_binary_expression (parser=0x7ffff5cdc000,
cast_p=<value optimized out>,
no_toplevel_fold_p=0 '\000', prec=PREC_NOT_OPERATOR, pidk=<value optimized
out>)
at /usr/portage/distfiles/svn-src/gcc/trunk/gcc/cp/parser.c:6817
#7 0x00000000005db6a3 in cp_parser_assignment_expression
(parser=0x7ffff5cdc000, cast_p=0 '\000', pidk=0x0)
at /usr/portage/distfiles/svn-src/gcc/trunk/gcc/cp/parser.c:7036
#8 0x00000000005dc0f9 in cp_parser_constant_expression (parser=0x7ffff5cdc000,
allow_non_constant_p=<value optimized out>,
non_constant_p=0x7fffffffd63f "") at
/usr/portage/distfiles/svn-src/gcc/trunk/gcc/cp/parser.c:7261
#9 0x00000000005dccf7 in cp_parser_parenthesized_expression_list
(parser=0x7ffff5cdc000, is_attribute_list=0,
cast_p=0 '\000', allow_expansion_p=1 '\001', non_constant_p=0x7fffffffd71f
"")
at /usr/portage/distfiles/svn-src/gcc/trunk/gcc/cp/parser.c:5722
#10 0x00000000005e337c in cp_parser_initializer (parser=0x7ffff5cdc000,
is_direct_init=0x7fffffffd71e "\001",
non_constant_p=0x7fffffffd71f "") at
/usr/portage/distfiles/svn-src/gcc/trunk/gcc/cp/parser.c:16458
#11 0x00000000005e42dd in cp_parser_init_declarator (parser=0x7ffff5cdc000,
decl_specifiers=0x7fffffffd780, checks=0x0,
function_definition_allowed_p=0 '\000', member_p=0 '\000',
declares_class_or_enum=0,
function_definition_p=0x7fffffffd7ef "") at
/usr/portage/distfiles/svn-src/gcc/trunk/gcc/cp/parser.c:14683
#12 0x00000000005e987b in cp_parser_simple_declaration (parser=0x7ffff5cdc000,
function_definition_allowed_p=1 '\001')
at /usr/portage/distfiles/svn-src/gcc/trunk/gcc/cp/parser.c:9689
#13 0x00000000005e9be7 in cp_parser_block_declaration (parser=0x7ffff5cdc000,
statement_p=0 '\000')
at /usr/portage/distfiles/svn-src/gcc/trunk/gcc/cp/parser.c:9587
#14 cp_parser_block_declaration (parser=0x7ffff5cdc000, statement_p=0 '\000')
at /usr/portage/distfiles/svn-src/gcc/trunk/gcc/cp/parser.c:9521
#15 0x00000000005ed8f2 in cp_parser_declaration (parser=0x7ffff5cdc000)
at /usr/portage/distfiles/svn-src/gcc/trunk/gcc/cp/parser.c:9492
#16 cp_parser_declaration (parser=0x7ffff5cdc000) at
/usr/portage/distfiles/svn-src/gcc/trunk/gcc/cp/parser.c:9399
#17 0x00000000005ec41a in cp_parser_declaration_seq_opt (parser=0x7ffff5cdc000)
at /usr/portage/distfiles/svn-src/gcc/trunk/gcc/cp/parser.c:9378
#18 0x00000000005edf69 in cp_parser_translation_unit () at
/usr/portage/distfiles/svn-src/gcc/trunk/gcc/cp/parser.c:3461
#19 c_parse_file () at
/usr/portage/distfiles/svn-src/gcc/trunk/gcc/cp/parser.c:25214
#20 0x00000000006c2195 in c_common_parse_file () at
/usr/portage/distfiles/svn-src/gcc/trunk/gcc/c-family/c-opts.c:1071
#21 0x0000000000a24598 in compile_file (argc=14, argv=0x7fffffffdab8)
at /usr/portage/distfiles/svn-src/gcc/trunk/gcc/toplev.c:579
#22 do_compile (argc=14, argv=0x7fffffffdab8) at
/usr/portage/distfiles/svn-src/gcc/trunk/gcc/toplev.c:1874
#23 toplev_main (argc=14, argv=0x7fffffffdab8) at
/usr/portage/distfiles/svn-src/gcc/trunk/gcc/toplev.c:1937
#24 0x00007ffff6586bbd in __libc_start_main () from /lib/libc.so.6
#25 0x00000000004fef2d in _start ()
Tested revisions:
r168552 - crash
r165699 - OK
