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* [Bug c++/47207] New: [4.6 Regression] [C++0x] ICE: in decl_constant_var_p, at cp/decl2.c:3563 on invalid code
@ 2011-01-07 11:58 zsojka at seznam dot cz
2011-01-07 14:57 ` [Bug c++/47207] " hjl.tools at gmail dot com
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: zsojka at seznam dot cz @ 2011-01-07 11:58 UTC (permalink / raw)
To: gcc-bugs
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: unassigned@gcc.gnu.org
ReportedBy: zsojka@seznam.cz
CC: gcc@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
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/47207] [4.6 Regression] [C++0x] ICE: in decl_constant_var_p, at cp/decl2.c:3563 on invalid code
2011-01-07 11:58 [Bug c++/47207] New: [4.6 Regression] [C++0x] ICE: in decl_constant_var_p, at cp/decl2.c:3563 on invalid code zsojka at seznam dot cz
@ 2011-01-07 14:57 ` hjl.tools at gmail dot com
2011-01-19 20:58 ` jakub at gcc dot gnu.org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: hjl.tools at gmail dot com @ 2011-01-07 14:57 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47207
H.J. Lu <hjl.tools at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2011.01.07 14:42:56
CC| |jason at redhat dot com
Target Milestone|--- |4.6.0
Ever Confirmed|0 |1
--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> 2011-01-07 14:42:56 UTC ---
It is caused by revision 166164:
http://gcc.gnu.org/ml/gcc-cvs/2010-11/msg00050.html
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/47207] [4.6 Regression] [C++0x] ICE: in decl_constant_var_p, at cp/decl2.c:3563 on invalid code
2011-01-07 11:58 [Bug c++/47207] New: [4.6 Regression] [C++0x] ICE: in decl_constant_var_p, at cp/decl2.c:3563 on invalid code zsojka at seznam dot cz
2011-01-07 14:57 ` [Bug c++/47207] " hjl.tools at gmail dot com
@ 2011-01-19 20:58 ` jakub at gcc dot gnu.org
2011-02-21 15:12 ` jason at gcc dot gnu.org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: jakub at gcc dot gnu.org @ 2011-01-19 20:58 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47207
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P2
CC| |jakub at gcc dot gnu.org
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/47207] [4.6 Regression] [C++0x] ICE: in decl_constant_var_p, at cp/decl2.c:3563 on invalid code
2011-01-07 11:58 [Bug c++/47207] New: [4.6 Regression] [C++0x] ICE: in decl_constant_var_p, at cp/decl2.c:3563 on invalid code zsojka at seznam dot cz
2011-01-07 14:57 ` [Bug c++/47207] " hjl.tools at gmail dot com
2011-01-19 20:58 ` jakub at gcc dot gnu.org
@ 2011-02-21 15:12 ` jason at gcc dot gnu.org
2011-02-21 15:54 ` jason at gcc dot gnu.org
2011-02-21 17:21 ` paolo.carlini at oracle dot com
4 siblings, 0 replies; 6+ messages in thread
From: jason at gcc dot gnu.org @ 2011-02-21 15:12 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47207
Jason Merrill <jason at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
CC| |jason at gcc dot gnu.org
--- Comment #2 from Jason Merrill <jason at gcc dot gnu.org> 2011-02-21 15:11:14 UTC ---
Mine.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/47207] [4.6 Regression] [C++0x] ICE: in decl_constant_var_p, at cp/decl2.c:3563 on invalid code
2011-01-07 11:58 [Bug c++/47207] New: [4.6 Regression] [C++0x] ICE: in decl_constant_var_p, at cp/decl2.c:3563 on invalid code zsojka at seznam dot cz
` (2 preceding siblings ...)
2011-02-21 15:12 ` jason at gcc dot gnu.org
@ 2011-02-21 15:54 ` jason at gcc dot gnu.org
2011-02-21 17:21 ` paolo.carlini at oracle dot com
4 siblings, 0 replies; 6+ messages in thread
From: jason at gcc dot gnu.org @ 2011-02-21 15:54 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47207
--- Comment #3 from Jason Merrill <jason at gcc dot gnu.org> 2011-02-21 15:35:52 UTC ---
Author: jason
Date: Mon Feb 21 15:35:44 2011
New Revision: 170365
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=170365
Log:
PR c++/47207
* decl2.c (decl_constant_var_p): A constexpr var needs an
initializer to be constant.
* semantics.c (cxx_eval_constant_expression): Complain about
constexpr var used in its own initializer.
* call.c (set_up_extended_ref_temp): Set
DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P too.
Added:
trunk/gcc/testsuite/g++.dg/cpp0x/constexpr-diag2.C
Modified:
trunk/gcc/cp/ChangeLog
trunk/gcc/cp/call.c
trunk/gcc/cp/decl2.c
trunk/gcc/cp/semantics.c
trunk/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/47207] [4.6 Regression] [C++0x] ICE: in decl_constant_var_p, at cp/decl2.c:3563 on invalid code
2011-01-07 11:58 [Bug c++/47207] New: [4.6 Regression] [C++0x] ICE: in decl_constant_var_p, at cp/decl2.c:3563 on invalid code zsojka at seznam dot cz
` (3 preceding siblings ...)
2011-02-21 15:54 ` jason at gcc dot gnu.org
@ 2011-02-21 17:21 ` paolo.carlini at oracle dot com
4 siblings, 0 replies; 6+ messages in thread
From: paolo.carlini at oracle dot com @ 2011-02-21 17:21 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47207
Paolo Carlini <paolo.carlini at oracle dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
--- Comment #4 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-02-21 17:07:37 UTC ---
Fixed.
^ permalink raw reply [flat|nested] 6+ messages in thread
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2011-01-07 11:58 [Bug c++/47207] New: [4.6 Regression] [C++0x] ICE: in decl_constant_var_p, at cp/decl2.c:3563 on invalid code zsojka at seznam dot cz
2011-01-07 14:57 ` [Bug c++/47207] " hjl.tools at gmail dot com
2011-01-19 20:58 ` jakub at gcc dot gnu.org
2011-02-21 15:12 ` jason at gcc dot gnu.org
2011-02-21 15:54 ` jason at gcc dot gnu.org
2011-02-21 17:21 ` paolo.carlini at oracle dot com
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