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* [Bug c++/59097] New: [4.7/4.8/4.9 Regression] ICE with invalid statement expression as array size
@ 2013-11-12 23:13 reichelt at gcc dot gnu.org
2013-11-13 12:23 ` [Bug c++/59097] " rguenth at gcc dot gnu.org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: reichelt at gcc dot gnu.org @ 2013-11-12 23:13 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59097
Bug ID: 59097
Summary: [4.7/4.8/4.9 Regression] ICE with invalid statement
expression as array 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 triggers an ICE since GCC 4.6.0:
============================
void foo()
{
int x[({ return; })];
}
============================
bug.cc: In function 'void foo()':
bug.cc:3:22: internal compiler error: Segmentation fault
int x[({ return; })];
^
0xb2bf3f crash_signal
../../gcc/gcc/toplev.c:334
0x6dac34 cxx_eval_constant_expression
../../gcc/gcc/cp/semantics.c:9350
0x6db91b cxx_eval_constant_expression
../../gcc/gcc/cp/semantics.c:9453
0x6de4d6 cxx_eval_outermost_constant_expr
../../gcc/gcc/cp/semantics.c:9725
0x6e119b maybe_constant_value(tree_node*)
../../gcc/gcc/cp/semantics.c:9835
0x567450 compute_array_index_type(tree_node*, tree_node*, int)
../../gcc/gcc/cp/decl.c:8227
0x589075 create_array_type_for_decl
../../gcc/gcc/cp/decl.c:8540
0x589075 grokdeclarator(cp_declarator const*, cp_decl_specifier_seq*,
decl_context, int, tree_node**)
../../gcc/gcc/cp/decl.c:9486
0x58d8f4 start_decl(cp_declarator const*, cp_decl_specifier_seq*, int,
tree_node*, tree_node*, tree_node**)
../../gcc/gcc/cp/decl.c:4469
0x6664a2 cp_parser_init_declarator
../../gcc/gcc/cp/parser.c:16567
0x667edf cp_parser_simple_declaration
../../gcc/gcc/cp/parser.c:11107
0x64bdf0 cp_parser_block_declaration
../../gcc/gcc/cp/parser.c:10988
0x64cf13 cp_parser_declaration_statement
../../gcc/gcc/cp/parser.c:10635
0x64d587 cp_parser_statement
../../gcc/gcc/cp/parser.c:9376
0x64e289 cp_parser_statement_seq_opt
../../gcc/gcc/cp/parser.c:9654
0x64e3fe cp_parser_compound_statement
../../gcc/gcc/cp/parser.c:9608
0x661a8b cp_parser_function_body
../../gcc/gcc/cp/parser.c:18461
0x661a8b cp_parser_ctor_initializer_opt_and_function_body
../../gcc/gcc/cp/parser.c:18497
0x665e8f cp_parser_function_definition_after_declarator
../../gcc/gcc/cp/parser.c:22520
0x666c62 cp_parser_function_definition_from_specifiers_and_declarator
../../gcc/gcc/cp/parser.c:22441
Please submit a full bug report, [etc.]
A slightly different testcase produces a different ICE:
============================
void foo()
{
int x[({ L: ; })];
}
============================
bug.cc: In function 'void foo()':
bug.cc:3:19: internal compiler error: unexpected expression '<statement>' of
kind label_expr
int x[({ L: ; })];
^
0x6db55d cxx_eval_constant_expression
../../gcc/gcc/cp/semantics.c:9705
0x6de4d6 cxx_eval_outermost_constant_expr
../../gcc/gcc/cp/semantics.c:9725
0x6e119b maybe_constant_value(tree_node*)
../../gcc/gcc/cp/semantics.c:9835
0x567450 compute_array_index_type(tree_node*, tree_node*, int)
../../gcc/gcc/cp/decl.c:8227
0x589075 create_array_type_for_decl
../../gcc/gcc/cp/decl.c:8540
0x589075 grokdeclarator(cp_declarator const*, cp_decl_specifier_seq*,
decl_context, int, tree_node**)
../../gcc/gcc/cp/decl.c:9486
0x58d8f4 start_decl(cp_declarator const*, cp_decl_specifier_seq*, int,
tree_node*, tree_node*, tree_node**)
../../gcc/gcc/cp/decl.c:4469
0x6664a2 cp_parser_init_declarator
../../gcc/gcc/cp/parser.c:16567
0x667edf cp_parser_simple_declaration
../../gcc/gcc/cp/parser.c:11107
0x64bdf0 cp_parser_block_declaration
../../gcc/gcc/cp/parser.c:10988
0x64cf13 cp_parser_declaration_statement
../../gcc/gcc/cp/parser.c:10635
0x64d587 cp_parser_statement
../../gcc/gcc/cp/parser.c:9376
0x64e289 cp_parser_statement_seq_opt
../../gcc/gcc/cp/parser.c:9654
0x64e3fe cp_parser_compound_statement
../../gcc/gcc/cp/parser.c:9608
0x661a8b cp_parser_function_body
../../gcc/gcc/cp/parser.c:18461
0x661a8b cp_parser_ctor_initializer_opt_and_function_body
../../gcc/gcc/cp/parser.c:18497
0x665e8f cp_parser_function_definition_after_declarator
../../gcc/gcc/cp/parser.c:22520
0x666c62 cp_parser_function_definition_from_specifiers_and_declarator
../../gcc/gcc/cp/parser.c:22441
0x666c62 cp_parser_init_declarator
../../gcc/gcc/cp/parser.c:16472
0x667edf cp_parser_simple_declaration
../../gcc/gcc/cp/parser.c:11107
Please submit a full bug report, [etc.]
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/59097] [4.7/4.8/4.9 Regression] ICE with invalid statement expression as array size
2013-11-12 23:13 [Bug c++/59097] New: [4.7/4.8/4.9 Regression] ICE with invalid statement expression as array size reichelt at gcc dot gnu.org
@ 2013-11-13 12:23 ` rguenth at gcc dot gnu.org
2014-01-27 15:00 ` jason at gcc dot gnu.org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2013-11-13 12:23 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59097
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P2
Target Milestone|--- |4.7.4
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/59097] [4.7/4.8/4.9 Regression] ICE with invalid statement expression as array size
2013-11-12 23:13 [Bug c++/59097] New: [4.7/4.8/4.9 Regression] ICE with invalid statement expression as array size reichelt at gcc dot gnu.org
2013-11-13 12:23 ` [Bug c++/59097] " rguenth at gcc dot gnu.org
@ 2014-01-27 15:00 ` jason at gcc dot gnu.org
2014-01-28 4:31 ` jason at gcc dot gnu.org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: jason at gcc dot gnu.org @ 2014-01-27 15:00 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59097
Jason Merrill <jason at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2014-01-27
CC| |jason at gcc dot gnu.org
Assignee|unassigned at gcc dot gnu.org |jason at gcc dot gnu.org
Ever confirmed|0 |1
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/59097] [4.7/4.8/4.9 Regression] ICE with invalid statement expression as array size
2013-11-12 23:13 [Bug c++/59097] New: [4.7/4.8/4.9 Regression] ICE with invalid statement expression as array size reichelt at gcc dot gnu.org
2013-11-13 12:23 ` [Bug c++/59097] " rguenth at gcc dot gnu.org
2014-01-27 15:00 ` jason at gcc dot gnu.org
@ 2014-01-28 4:31 ` jason at gcc dot gnu.org
2014-01-28 13:45 ` jason at gcc dot gnu.org
2014-01-28 13:52 ` jason at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: jason at gcc dot gnu.org @ 2014-01-28 4:31 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59097
--- Comment #1 from Jason Merrill <jason at gcc dot gnu.org> ---
Author: jason
Date: Tue Jan 28 04:30:16 2014
New Revision: 207161
URL: http://gcc.gnu.org/viewcvs?rev=207161&root=gcc&view=rev
Log:
PR c++/59097
* decl.c (compute_array_index_type): Don't call
maybe_constant_value for a non-integral expression.
Added:
trunk/gcc/testsuite/g++.dg/ext/stmtexpr15.C
Modified:
trunk/gcc/cp/ChangeLog
trunk/gcc/cp/decl.c
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/59097] [4.7/4.8/4.9 Regression] ICE with invalid statement expression as array size
2013-11-12 23:13 [Bug c++/59097] New: [4.7/4.8/4.9 Regression] ICE with invalid statement expression as array size reichelt at gcc dot gnu.org
` (2 preceding siblings ...)
2014-01-28 4:31 ` jason at gcc dot gnu.org
@ 2014-01-28 13:45 ` jason at gcc dot gnu.org
2014-01-28 13:52 ` jason at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: jason at gcc dot gnu.org @ 2014-01-28 13:45 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59097
--- Comment #2 from Jason Merrill <jason at gcc dot gnu.org> ---
Author: jason
Date: Tue Jan 28 13:44:30 2014
New Revision: 207184
URL: http://gcc.gnu.org/viewcvs?rev=207184&root=gcc&view=rev
Log:
PR c++/59097
* decl.c (compute_array_index_type): Don't call
maybe_constant_value for a non-integral expression.
Added:
branches/gcc-4_8-branch/gcc/testsuite/g++.dg/ext/stmtexpr15.C
Modified:
branches/gcc-4_8-branch/gcc/cp/ChangeLog
branches/gcc-4_8-branch/gcc/cp/decl.c
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/59097] [4.7/4.8/4.9 Regression] ICE with invalid statement expression as array size
2013-11-12 23:13 [Bug c++/59097] New: [4.7/4.8/4.9 Regression] ICE with invalid statement expression as array size reichelt at gcc dot gnu.org
` (3 preceding siblings ...)
2014-01-28 13:45 ` jason at gcc dot gnu.org
@ 2014-01-28 13:52 ` jason at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: jason at gcc dot gnu.org @ 2014-01-28 13:52 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59097
Jason Merrill <jason at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
Target Milestone|4.7.4 |4.8.3
--- Comment #3 from Jason Merrill <jason at gcc dot gnu.org> ---
Fixed for 4.8.3/4.9. Not applying to 4.7.
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2014-01-28 13:52 UTC | newest]
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2013-11-12 23:13 [Bug c++/59097] New: [4.7/4.8/4.9 Regression] ICE with invalid statement expression as array size reichelt at gcc dot gnu.org
2013-11-13 12:23 ` [Bug c++/59097] " rguenth at gcc dot gnu.org
2014-01-27 15:00 ` jason at gcc dot gnu.org
2014-01-28 4:31 ` jason at gcc dot gnu.org
2014-01-28 13:45 ` jason at gcc dot gnu.org
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