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* [Bug c++/60215] New: [4.9 Regression] ICE with invalid bit-field size
@ 2014-02-15 21:01 reichelt at gcc dot gnu.org
2014-02-15 21:02 ` [Bug c++/60215] " reichelt at gcc dot gnu.org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: reichelt at gcc dot gnu.org @ 2014-02-15 21:01 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60215
Bug ID: 60215
Summary: [4.9 Regression] ICE with invalid bit-field size
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++11") triggers an
ICE on trunk:
==================
struct A
{
void foo();
int i : foo;
};
==================
bug.cc:4:11: error: width of bit-field 'i' has non-integral type '<unresolved
overloaded function type>'
int i : foo;
^
bug.cc:4:11: internal compiler error: in cxx_eval_constant_expression, at
cp/semantics.c:9679
0x73dfc0 cxx_eval_constant_expression
../../gcc/gcc/cp/semantics.c:9679
0x7410d5 cxx_eval_outermost_constant_expr
../../gcc/gcc/cp/semantics.c:9807
0x6597ac check_bitfield_decl
../../gcc/gcc/cp/class.c:3250
0x6597ac check_field_decls
../../gcc/gcc/cp/class.c:3619
0x67002b check_bases_and_members
../../gcc/gcc/cp/class.c:5511
0x675221 finish_struct_1(tree_node*)
../../gcc/gcc/cp/class.c:6484
0x677574 finish_struct(tree_node*, tree_node*)
../../gcc/gcc/cp/class.c:6801
0x6a97ba cp_parser_class_specifier_1
../../gcc/gcc/cp/parser.c:19218
0x6a97ba cp_parser_class_specifier
../../gcc/gcc/cp/parser.c:19437
0x6a97ba cp_parser_type_specifier
../../gcc/gcc/cp/parser.c:14302
0x6c2ba0 cp_parser_decl_specifier_seq
../../gcc/gcc/cp/parser.c:11547
0x6c9799 cp_parser_simple_declaration
../../gcc/gcc/cp/parser.c:11137
0x6acc63 cp_parser_block_declaration
../../gcc/gcc/cp/parser.c:11086
0x6d3f12 cp_parser_declaration
../../gcc/gcc/cp/parser.c:10983
0x6d2c08 cp_parser_declaration_seq_opt
../../gcc/gcc/cp/parser.c:10869
0x6d44aa cp_parser_translation_unit
../../gcc/gcc/cp/parser.c:4014
0x6d44aa c_parse_file()
../../gcc/gcc/cp/parser.c:31536
0x7f3813 c_common_parse_file()
../../gcc/gcc/c-family/c-opts.c:1060
Please submit a full bug report, [etc.]
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/60215] [4.9 Regression] ICE with invalid bit-field size
2014-02-15 21:01 [Bug c++/60215] New: [4.9 Regression] ICE with invalid bit-field size reichelt at gcc dot gnu.org
@ 2014-02-15 21:02 ` reichelt at gcc dot gnu.org
2014-02-17 9:41 ` jakub at gcc dot gnu.org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: reichelt at gcc dot gnu.org @ 2014-02-15 21:02 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60215
Volker Reichelt <reichelt at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |error-recovery,
| |ice-on-invalid-code
Known to work| |4.7.0, 4.8.0
Target Milestone|--- |4.9.0
Known to fail| |4.9.0
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/60215] [4.9 Regression] ICE with invalid bit-field size
2014-02-15 21:01 [Bug c++/60215] New: [4.9 Regression] ICE with invalid bit-field size reichelt at gcc dot gnu.org
2014-02-15 21:02 ` [Bug c++/60215] " reichelt at gcc dot gnu.org
@ 2014-02-17 9:41 ` jakub at gcc dot gnu.org
2014-02-17 11:01 ` paolo.carlini at oracle dot com
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: jakub at gcc dot gnu.org @ 2014-02-17 9:41 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60215
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2014-02-17
CC| |jakub at gcc dot gnu.org,
| |paolo at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Started with r205449.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/60215] [4.9 Regression] ICE with invalid bit-field size
2014-02-15 21:01 [Bug c++/60215] New: [4.9 Regression] ICE with invalid bit-field size reichelt at gcc dot gnu.org
2014-02-15 21:02 ` [Bug c++/60215] " reichelt at gcc dot gnu.org
2014-02-17 9:41 ` jakub at gcc dot gnu.org
@ 2014-02-17 11:01 ` paolo.carlini at oracle dot com
2014-02-18 23:12 ` paolo at gcc dot gnu.org
2014-02-18 23:12 ` paolo.carlini at oracle dot com
4 siblings, 0 replies; 6+ messages in thread
From: paolo.carlini at oracle dot com @ 2014-02-17 11:01 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60215
Paolo Carlini <paolo.carlini at oracle dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jason at gcc dot gnu.org
--- Comment #2 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Evidently, in case of error recovery we can get here:
9672 case COMPONENT_REF:
9673 if (is_overloaded_fn (t))
9674 {
9675 /* We can only get here in checking mode via
9676 build_non_dependent_expr, because any expression that
9677 calls or takes the address of the function will have
9678 pulled a FUNCTION_DECL out of the COMPONENT_REF. */
9679 gcc_checking_assert (allow_non_constant);
9680 *non_constant_p = true;
9681 return t;
9682 }
with allow_non_constant == false. Jason suggested the comment (and the assert
;) as part of the fix for 58647, thus I would like to hear from him... Shall we
maybe || errorcount ? Seems safe for 4.9.0.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/60215] [4.9 Regression] ICE with invalid bit-field size
2014-02-15 21:01 [Bug c++/60215] New: [4.9 Regression] ICE with invalid bit-field size reichelt at gcc dot gnu.org
` (2 preceding siblings ...)
2014-02-17 11:01 ` paolo.carlini at oracle dot com
@ 2014-02-18 23:12 ` paolo at gcc dot gnu.org
2014-02-18 23:12 ` paolo.carlini at oracle dot com
4 siblings, 0 replies; 6+ messages in thread
From: paolo at gcc dot gnu.org @ 2014-02-18 23:12 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60215
--- Comment #3 from paolo at gcc dot gnu.org <paolo at gcc dot gnu.org> ---
Author: paolo
Date: Tue Feb 18 23:11:26 2014
New Revision: 207858
URL: http://gcc.gnu.org/viewcvs?rev=207858&root=gcc&view=rev
Log:
/cp
2014-02-18 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/60225
* semantics.c (ensure_literal_type_for_constexpr_object): Use
strip_array_types.
/testsuite
2014-02-18 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/60225
* g++.dg/cpp0x/constexpr-ice10.C: New.
/cp
2014-02-18 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/60215
* semantics.c (cxx_eval_constant_expression, [COMPONENT_REF]):
During error recovery allow_non_constant may be false.
/testsuite
2014-02-18 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/60215
* g++.dg/cpp0x/pr60215.C: New.
Added:
trunk/gcc/testsuite/g++.dg/cpp0x/constexpr-ice10.C
trunk/gcc/testsuite/g++.dg/cpp0x/pr60215.C
Modified:
trunk/gcc/cp/ChangeLog
trunk/gcc/cp/semantics.c
trunk/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/60215] [4.9 Regression] ICE with invalid bit-field size
2014-02-15 21:01 [Bug c++/60215] New: [4.9 Regression] ICE with invalid bit-field size reichelt at gcc dot gnu.org
` (3 preceding siblings ...)
2014-02-18 23:12 ` paolo at gcc dot gnu.org
@ 2014-02-18 23:12 ` paolo.carlini at oracle dot com
4 siblings, 0 replies; 6+ messages in thread
From: paolo.carlini at oracle dot com @ 2014-02-18 23:12 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60215
Paolo Carlini <paolo.carlini at oracle dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #4 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Fixed.
^ permalink raw reply [flat|nested] 6+ messages in thread
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2014-02-15 21:01 [Bug c++/60215] New: [4.9 Regression] ICE with invalid bit-field size reichelt at gcc dot gnu.org
2014-02-15 21:02 ` [Bug c++/60215] " reichelt at gcc dot gnu.org
2014-02-17 9:41 ` jakub at gcc dot gnu.org
2014-02-17 11:01 ` paolo.carlini at oracle dot com
2014-02-18 23:12 ` paolo at gcc dot gnu.org
2014-02-18 23:12 ` paolo.carlini at oracle dot com
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