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* [Bug c++/59641] New: ICE with invalid expression in vector arithmetic
@ 2013-12-30 20:30 reichelt at gcc dot gnu.org
2013-12-30 22:25 ` [Bug c++/59641] " glisse at gcc dot gnu.org
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: reichelt at gcc dot gnu.org @ 2013-12-30 20:30 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59641
Bug ID: 59641
Summary: ICE with invalid expression in vector arithmetic
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 since GCC 4.8.0:
======================================================
typedef int T __attribute__((vector_size(8)));
T foo(const T& a, const T& b)
{
constexpr T c = a < b;
return c ? a : b;
}
======================================================
bug.cc: In function 'T foo(const T&, const T&)':
bug.cc:5:23: error: 'a' is not a constant expression
constexpr T c = a < b;
^
bug.cc:6:18: internal compiler error: tree check: expected vector_type, have
error_mark in build_conditional_expr_1, at cp/call.c:4495
return c ? a : b;
^
0xd8f084 tree_check_failed(tree_node const*, char const*, int, char const*,
...)
../../gcc/gcc/tree.c:9192
0x58441c tree_check
../../gcc/gcc/tree.h:2707
0x58441c build_conditional_expr_1
../../gcc/gcc/cp/call.c:4495
0x5844bc build_conditional_expr(unsigned int, tree_node*, tree_node*,
tree_node*, int)
../../gcc/gcc/cp/call.c:4931
0x6a8e53 build_x_conditional_expr(unsigned int, tree_node*, tree_node*,
tree_node*, int)
../../gcc/gcc/cp/typeck.c:6017
0x682b2c cp_parser_question_colon_clause
../../gcc/gcc/cp/parser.c:8080
0x682b2c cp_parser_assignment_expression
../../gcc/gcc/cp/parser.c:8116
0x6847b4 cp_parser_expression
../../gcc/gcc/cp/parser.c:8274
0x67af3a cp_parser_expression
../../gcc/gcc/cp/parser.c:8313
0x67af3a cp_parser_jump_statement
../../gcc/gcc/cp/parser.c:10677
0x67af3a cp_parser_statement
../../gcc/gcc/cp/parser.c:9370
0x67b5c9 cp_parser_statement_seq_opt
../../gcc/gcc/cp/parser.c:9740
0x67b73e cp_parser_compound_statement
../../gcc/gcc/cp/parser.c:9694
0x68f15b cp_parser_function_body
../../gcc/gcc/cp/parser.c:18610
0x68f15b cp_parser_ctor_initializer_opt_and_function_body
../../gcc/gcc/cp/parser.c:18646
0x6934fe cp_parser_function_definition_after_declarator
../../gcc/gcc/cp/parser.c:22678
0x694394 cp_parser_function_definition_from_specifiers_and_declarator
../../gcc/gcc/cp/parser.c:22590
0x694394 cp_parser_init_declarator
../../gcc/gcc/cp/parser.c:16588
0x69562f cp_parser_simple_declaration
../../gcc/gcc/cp/parser.c:11200
0x679003 cp_parser_block_declaration
../../gcc/gcc/cp/parser.c:11081
Please submit a full bug report, [etc.]
Marc, vector arithmetic looks like your domain, would you mind having a look?
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/59641] ICE with invalid expression in vector arithmetic
2013-12-30 20:30 [Bug c++/59641] New: ICE with invalid expression in vector arithmetic reichelt at gcc dot gnu.org
@ 2013-12-30 22:25 ` glisse at gcc dot gnu.org
2014-01-02 22:43 ` glisse at gcc dot gnu.org
2014-01-02 22:48 ` glisse at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: glisse at gcc dot gnu.org @ 2013-12-30 22:25 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59641
Marc Glisse <glisse at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2013-12-30
Target Milestone|--- |4.9.0
Ever confirmed|0 |1
--- Comment #1 from Marc Glisse <glisse at gcc dot gnu.org> ---
In build_conditional_expr_1, we check error_operand_p (arg1) on the original
arguments, but we don't check it again after force_rvalue, which we probably
should do.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/59641] ICE with invalid expression in vector arithmetic
2013-12-30 20:30 [Bug c++/59641] New: ICE with invalid expression in vector arithmetic reichelt at gcc dot gnu.org
2013-12-30 22:25 ` [Bug c++/59641] " glisse at gcc dot gnu.org
@ 2014-01-02 22:43 ` glisse at gcc dot gnu.org
2014-01-02 22:48 ` glisse at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: glisse at gcc dot gnu.org @ 2014-01-02 22:43 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59641
--- Comment #2 from Marc Glisse <glisse at gcc dot gnu.org> ---
Author: glisse
Date: Thu Jan 2 22:43:24 2014
New Revision: 206303
URL: http://gcc.gnu.org/viewcvs?rev=206303&root=gcc&view=rev
Log:
2014-01-02 Marc Glisse <marc.glisse@inria.fr>
PR c++/59641
gcc/cp/
* call.c (build_conditional_expr_1): Check the return value of
force_rvalue.
gcc/testsuite/
* g++.dg/cpp0x/pr59641.C: New file.
Added:
trunk/gcc/testsuite/g++.dg/cpp0x/pr59641.C (with props)
Modified:
trunk/gcc/cp/ChangeLog
trunk/gcc/cp/call.c
trunk/gcc/testsuite/ChangeLog
Propchange: trunk/gcc/testsuite/g++.dg/cpp0x/pr59641.C
('svn:eol-style' added)
Propchange: trunk/gcc/testsuite/g++.dg/cpp0x/pr59641.C
('svn:keywords' added)
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/59641] ICE with invalid expression in vector arithmetic
2013-12-30 20:30 [Bug c++/59641] New: ICE with invalid expression in vector arithmetic reichelt at gcc dot gnu.org
2013-12-30 22:25 ` [Bug c++/59641] " glisse at gcc dot gnu.org
2014-01-02 22:43 ` glisse at gcc dot gnu.org
@ 2014-01-02 22:48 ` glisse at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: glisse at gcc dot gnu.org @ 2014-01-02 22:48 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59641
Marc Glisse <glisse at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #3 from Marc Glisse <glisse at gcc dot gnu.org> ---
Fixed on trunk, not worth backporting.
^ permalink raw reply [flat|nested] 4+ messages in thread
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2013-12-30 20:30 [Bug c++/59641] New: ICE with invalid expression in vector arithmetic reichelt at gcc dot gnu.org
2013-12-30 22:25 ` [Bug c++/59641] " glisse at gcc dot gnu.org
2014-01-02 22:43 ` glisse at gcc dot gnu.org
2014-01-02 22:48 ` glisse at gcc dot gnu.org
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