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* [Bug c++/59646] New: [4.7/4.8/4.9 Regression] ICE with volatile in initializer list
@ 2013-12-31 0:24 reichelt at gcc dot gnu.org
2014-01-07 11:54 ` [Bug c++/59646] " rguenth at gcc dot gnu.org
` (7 more replies)
0 siblings, 8 replies; 9+ messages in thread
From: reichelt at gcc dot gnu.org @ 2013-12-31 0:24 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59646
Bug ID: 59646
Summary: [4.7/4.8/4.9 Regression] ICE with volatile in
initializer list
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 4.7.0:
===========================================================
#include <initializer_list>
struct A {};
std::initializer_list<volatile A> x = {{}};
===========================================================
bug.cc:5:42: error: no matching function for call to 'A::A(volatile A)'
std::initializer_list<volatile A> x = {{}};
^
bug.cc:5:42: note: candidates are:
bug.cc:3:8: note: constexpr A::A()
struct A {};
^
bug.cc:3:8: note: candidate expects 0 arguments, 1 provided
bug.cc:3:8: note: constexpr A::A(const A&)
bug.cc:3:8: note: no known conversion for argument 1 from 'volatile A' to
'const A&'
bug.cc:3:8: note: constexpr A::A(A&&)
bug.cc:3:8: note: no known conversion for argument 1 from 'volatile A' to
'A&&'
bug.cc: In function 'void __static_initialization_and_destruction_0(int, int)':
bug.cc:5:42: internal compiler error: tree check: expected class 'type', have
'exceptional' (error_mark) in useless_type_conversion_p, at gimple-expr.c:80
std::initializer_list<volatile A> x = {{}};
^
0xd8f855 tree_class_check_failed(tree_node const*, tree_code_class, char
const*, int, char const*)
../../gcc/gcc/tree.c:9243
0x9a5f05 tree_class_check
../../gcc/gcc/tree.h:2830
0x9a5f05 useless_type_conversion_p(tree_node*, tree_node*)
../../gcc/gcc/gimple-expr.c:80
0x9d2cf9 gimplify_modify_expr
../../gcc/gcc/gimplify.c:4446
0x9c72fc gimplify_expr(tree_node**, gimple_statement_base**,
gimple_statement_base**, bool (*)(tree_node*), int)
../../gcc/gcc/gimplify.c:7431
0x9cb7b6 gimplify_stmt(tree_node**, gimple_statement_base**)
../../gcc/gcc/gimplify.c:5334
0x9c74ec gimplify_cleanup_point_expr
../../gcc/gcc/gimplify.c:5110
0x9c74ec gimplify_expr(tree_node**, gimple_statement_base**,
gimple_statement_base**, bool (*)(tree_node*), int)
../../gcc/gcc/gimplify.c:7787
0x9cb7b6 gimplify_stmt(tree_node**, gimple_statement_base**)
../../gcc/gcc/gimplify.c:5334
0x9c7aab gimplify_statement_list
../../gcc/gcc/gimplify.c:1405
0x9c7aab gimplify_expr(tree_node**, gimple_statement_base**,
gimple_statement_base**, bool (*)(tree_node*), int)
../../gcc/gcc/gimplify.c:7839
0x9cb7b6 gimplify_stmt(tree_node**, gimple_statement_base**)
../../gcc/gcc/gimplify.c:5334
0x9cf6d3 gimplify_cond_expr
../../gcc/gcc/gimplify.c:3052
0x9c7333 gimplify_expr(tree_node**, gimple_statement_base**,
gimple_statement_base**, bool (*)(tree_node*), int)
../../gcc/gcc/gimplify.c:7387
0x9cb7b6 gimplify_stmt(tree_node**, gimple_statement_base**)
../../gcc/gcc/gimplify.c:5334
0x9cf6d3 gimplify_cond_expr
../../gcc/gcc/gimplify.c:3052
0x9c7333 gimplify_expr(tree_node**, gimple_statement_base**,
gimple_statement_base**, bool (*)(tree_node*), int)
../../gcc/gcc/gimplify.c:7387
0x9cb7b6 gimplify_stmt(tree_node**, gimple_statement_base**)
../../gcc/gcc/gimplify.c:5334
0x9ccf7a gimplify_body(tree_node*, bool)
../../gcc/gcc/gimplify.c:8531
0x9cd579 gimplify_function_tree(tree_node*)
../../gcc/gcc/gimplify.c:8684
Please submit a full bug report, [etc.]
Btw, clang 3.2 accepts the above code snippet.
Also the code is accepted if 'A' is replaced by 'int'.
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/59646] [4.7/4.8/4.9 Regression] ICE with volatile in initializer list
2013-12-31 0:24 [Bug c++/59646] New: [4.7/4.8/4.9 Regression] ICE with volatile in initializer list reichelt at gcc dot gnu.org
@ 2014-01-07 11:54 ` rguenth at gcc dot gnu.org
2014-01-30 10:44 ` paolo.carlini at oracle dot com
` (6 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: rguenth at gcc dot gnu.org @ 2014-01-07 11:54 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59646
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |4.7.4
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/59646] [4.7/4.8/4.9 Regression] ICE with volatile in initializer list
2013-12-31 0:24 [Bug c++/59646] New: [4.7/4.8/4.9 Regression] ICE with volatile in initializer list reichelt at gcc dot gnu.org
2014-01-07 11:54 ` [Bug c++/59646] " rguenth at gcc dot gnu.org
@ 2014-01-30 10:44 ` paolo.carlini at oracle dot com
2014-01-30 13:47 ` jason at gcc dot gnu.org
` (5 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: paolo.carlini at oracle dot com @ 2014-01-30 10:44 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59646
Paolo Carlini <paolo.carlini at oracle dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jason at gcc dot gnu.org
--- Comment #1 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Have to figure out if it's valid. ICC also accepts it.
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/59646] [4.7/4.8/4.9 Regression] ICE with volatile in initializer list
2013-12-31 0:24 [Bug c++/59646] New: [4.7/4.8/4.9 Regression] ICE with volatile in initializer list reichelt at gcc dot gnu.org
2014-01-07 11:54 ` [Bug c++/59646] " rguenth at gcc dot gnu.org
2014-01-30 10:44 ` paolo.carlini at oracle dot com
@ 2014-01-30 13:47 ` jason at gcc dot gnu.org
2014-01-31 11:24 ` rguenth at gcc dot gnu.org
` (4 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: jason at gcc dot gnu.org @ 2014-01-30 13:47 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59646
Jason Merrill <jason at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords|ice-on-invalid-code |ice-on-valid-code
--- Comment #2 from Jason Merrill <jason at gcc dot gnu.org> ---
I think it's well-formed; the initialization of the underlying array of the
initializer_list should be direct-, not copy-initialization.
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/59646] [4.7/4.8/4.9 Regression] ICE with volatile in initializer list
2013-12-31 0:24 [Bug c++/59646] New: [4.7/4.8/4.9 Regression] ICE with volatile in initializer list reichelt at gcc dot gnu.org
` (2 preceding siblings ...)
2014-01-30 13:47 ` jason at gcc dot gnu.org
@ 2014-01-31 11:24 ` rguenth at gcc dot gnu.org
2014-01-31 14:15 ` jason at gcc dot gnu.org
` (3 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: rguenth at gcc dot gnu.org @ 2014-01-31 11:24 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59646
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords|error-recovery |rejects-valid
Priority|P3 |P2
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/59646] [4.7/4.8/4.9 Regression] ICE with volatile in initializer list
2013-12-31 0:24 [Bug c++/59646] New: [4.7/4.8/4.9 Regression] ICE with volatile in initializer list reichelt at gcc dot gnu.org
` (3 preceding siblings ...)
2014-01-31 11:24 ` rguenth at gcc dot gnu.org
@ 2014-01-31 14:15 ` jason at gcc dot gnu.org
2014-01-31 15:20 ` jason at gcc dot gnu.org
` (2 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: jason at gcc dot gnu.org @ 2014-01-31 14:15 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59646
Jason Merrill <jason at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2014-01-31
Assignee|unassigned at gcc dot gnu.org |jason at gcc dot gnu.org
Ever confirmed|0 |1
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/59646] [4.7/4.8/4.9 Regression] ICE with volatile in initializer list
2013-12-31 0:24 [Bug c++/59646] New: [4.7/4.8/4.9 Regression] ICE with volatile in initializer list reichelt at gcc dot gnu.org
` (4 preceding siblings ...)
2014-01-31 14:15 ` jason at gcc dot gnu.org
@ 2014-01-31 15:20 ` jason at gcc dot gnu.org
2014-01-31 15:21 ` jason at gcc dot gnu.org
2014-01-31 15:22 ` jason at gcc dot gnu.org
7 siblings, 0 replies; 9+ messages in thread
From: jason at gcc dot gnu.org @ 2014-01-31 15:20 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59646
--- Comment #3 from Jason Merrill <jason at gcc dot gnu.org> ---
Author: jason
Date: Fri Jan 31 15:20:12 2014
New Revision: 207346
URL: http://gcc.gnu.org/viewcvs?rev=207346&root=gcc&view=rev
Log:
PR c++/59646
* call.c (convert_like_real) [ck_aggr]: Set TARGET_EXPR_LIST_INIT_P.
[ck_list]: Check for error_mark_node.
(build_aggr_conv): Set LOOKUP_NO_NARROWING and check_narrowing.
Added:
trunk/gcc/testsuite/g++.dg/cpp0x/initlist79.C
Modified:
trunk/gcc/cp/ChangeLog
trunk/gcc/cp/call.c
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/59646] [4.7/4.8/4.9 Regression] ICE with volatile in initializer list
2013-12-31 0:24 [Bug c++/59646] New: [4.7/4.8/4.9 Regression] ICE with volatile in initializer list reichelt at gcc dot gnu.org
` (5 preceding siblings ...)
2014-01-31 15:20 ` jason at gcc dot gnu.org
@ 2014-01-31 15:21 ` jason at gcc dot gnu.org
2014-01-31 15:22 ` jason at gcc dot gnu.org
7 siblings, 0 replies; 9+ messages in thread
From: jason at gcc dot gnu.org @ 2014-01-31 15:21 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59646
--- Comment #4 from Jason Merrill <jason at gcc dot gnu.org> ---
Author: jason
Date: Fri Jan 31 15:21:20 2014
New Revision: 207348
URL: http://gcc.gnu.org/viewcvs?rev=207348&root=gcc&view=rev
Log:
PR c++/59646
* call.c (convert_like_real) [ck_aggr]: Set TARGET_EXPR_LIST_INIT_P.
[ck_list]: Check for error_mark_node.
Added:
branches/gcc-4_8-branch/gcc/testsuite/g++.dg/cpp0x/initlist79.C
Modified:
branches/gcc-4_8-branch/gcc/cp/ChangeLog
branches/gcc-4_8-branch/gcc/cp/call.c
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/59646] [4.7/4.8/4.9 Regression] ICE with volatile in initializer list
2013-12-31 0:24 [Bug c++/59646] New: [4.7/4.8/4.9 Regression] ICE with volatile in initializer list reichelt at gcc dot gnu.org
` (6 preceding siblings ...)
2014-01-31 15:21 ` jason at gcc dot gnu.org
@ 2014-01-31 15:22 ` jason at gcc dot gnu.org
7 siblings, 0 replies; 9+ messages in thread
From: jason at gcc dot gnu.org @ 2014-01-31 15:22 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59646
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 #5 from Jason Merrill <jason at gcc dot gnu.org> ---
Fixed for 4.8.3/4.9. Not applying to 4.7 unless someone cares.
^ permalink raw reply [flat|nested] 9+ messages in thread
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2013-12-31 0:24 [Bug c++/59646] New: [4.7/4.8/4.9 Regression] ICE with volatile in initializer list reichelt at gcc dot gnu.org
2014-01-07 11:54 ` [Bug c++/59646] " rguenth at gcc dot gnu.org
2014-01-30 10:44 ` paolo.carlini at oracle dot com
2014-01-30 13:47 ` jason at gcc dot gnu.org
2014-01-31 11:24 ` rguenth at gcc dot gnu.org
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