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* [Bug c++/54652] New: ICE with -g
@ 2012-09-21 9:49 jakub at gcc dot gnu.org
2013-10-19 22:44 ` [Bug c++/54652] [4.7/4.8/4.9 Regression] " reichelt at gcc dot gnu.org
` (6 more replies)
0 siblings, 7 replies; 8+ messages in thread
From: jakub at gcc dot gnu.org @ 2012-09-21 9:49 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54652
Bug #: 54652
Summary: ICE with -g
Classification: Unclassified
Product: gcc
Version: 4.7.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: jakub@gcc.gnu.org
CC: jason@gcc.gnu.org
typedef unsigned long L __attribute__ ((aligned));
typedef unsigned long L __attribute__ ((aligned));
template <typename T>
struct S
{
union U { L l; } u;
};
S <int> s;
ICEs with -g, TYPE_NAME seems to be garbage.
The problem is that handle_aligned_attribute first (with L as decl):
tree tt = TREE_TYPE (decl);
*type = build_variant_type_copy (*type);
DECL_ORIGINAL_TYPE (decl) = tt;
TYPE_NAME (*type) = decl;
TREE_USED (*type) = TREE_USED (decl);
TREE_TYPE (decl) = *type;
then duplicate_decls is called on the L olddecl (with new L as newdecl), where
TYPE_NAME (TREE_TYPE (olddecl)) == olddecl and
TYPE_NAME (TREE_TYPE (newdecl)) == newdecl, in merge_types newdecl's type wins,
and eventually ggc_free (newdecl);
So, either something should have changed TYPE_NAME (newtype) from newdecl to
olddecl before ggc_free (I guess that would be preferred, but can't it be
TYPE_NAME of other related types too?), or we shouldn't ggc_free TYPE_DECLs.
Jason, can you please look into this?
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug c++/54652] [4.7/4.8/4.9 Regression] ICE with -g
2012-09-21 9:49 [Bug c++/54652] New: ICE with -g jakub at gcc dot gnu.org
@ 2013-10-19 22:44 ` reichelt at gcc dot gnu.org
2013-10-25 11:21 ` rguenth at gcc dot gnu.org
` (5 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: reichelt at gcc dot gnu.org @ 2013-10-19 22:44 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54652
Volker Reichelt <reichelt at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Known to work| |3.4.0
Keywords| |ice-on-valid-code
Last reconfirmed| |2013-10-19
CC| |reichelt at gcc dot gnu.org
Ever confirmed|0 |1
Summary|ICE with -g |[4.7/4.8/4.9 Regression]
| |ICE with -g
Target Milestone|--- |4.7.4
Known to fail| |4.0.0, 4.1.0, 4.2.0, 4.3.0,
| |4.4.0, 4.5.0, 4.6.0, 4.7.0,
| |4.8.0, 4.9.0
--- Comment #1 from Volker Reichelt <reichelt at gcc dot gnu.org> ---
Confirmed. Even shorter testcase (which crashes since GCC 4.0.0):
=====================================================
typedef unsigned L __attribute__ ((aligned));
typedef unsigned L __attribute__ ((aligned));
L l;
=====================================================
bug.cc:4:4: internal compiler error: tree check: expected identifier_node, have
<invalid tree code> in modified_type_die, at dwarf2out.c:10376
L l;
^
0xd15bb4 tree_check_failed(tree_node const*, char const*, int, char const*,
...)
../../gcc/gcc/tree.c:9301
0x8844b0 tree_check
../../gcc/gcc/tree.h:2674
0x8844b0 modified_type_die
../../gcc/gcc/dwarf2out.c:10376
0x8859b9 add_type_attribute
../../gcc/gcc/dwarf2out.c:16717
0x892dd0 gen_variable_die
../../gcc/gcc/dwarf2out.c:18621
0x87eea1 gen_decl_die
../../gcc/gcc/dwarf2out.c:20294
0xb17633 emit_debug_global_declarations(tree_node**, int)
../../gcc/gcc/toplev.c:531
0x55a520 wrapup_globals_for_namespace(tree_node*, void*)
../../gcc/gcc/cp/decl.c:876
0x55759c walk_namespaces_r
../../gcc/gcc/cp/decl.c:843
0x625533 cp_write_global_declarations()
../../gcc/gcc/cp/decl2.c:4455
Please submit a full bug report, [etc.]
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug c++/54652] [4.7/4.8/4.9 Regression] ICE with -g
2012-09-21 9:49 [Bug c++/54652] New: ICE with -g jakub at gcc dot gnu.org
2013-10-19 22:44 ` [Bug c++/54652] [4.7/4.8/4.9 Regression] " reichelt at gcc dot gnu.org
@ 2013-10-25 11:21 ` rguenth at gcc dot gnu.org
2014-01-27 19:16 ` jason at gcc dot gnu.org
` (4 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu.org @ 2013-10-25 11:21 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54652
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P2
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
re-confirmed on trunk.
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug c++/54652] [4.7/4.8/4.9 Regression] ICE with -g
2012-09-21 9:49 [Bug c++/54652] New: ICE with -g jakub at gcc dot gnu.org
2013-10-19 22:44 ` [Bug c++/54652] [4.7/4.8/4.9 Regression] " reichelt at gcc dot gnu.org
2013-10-25 11:21 ` rguenth at gcc dot gnu.org
@ 2014-01-27 19:16 ` jason at gcc dot gnu.org
2014-01-28 4:32 ` jason at gcc dot gnu.org
` (3 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: jason at gcc dot gnu.org @ 2014-01-27 19:16 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54652
Jason Merrill <jason at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |jason at gcc dot gnu.org
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug c++/54652] [4.7/4.8/4.9 Regression] ICE with -g
2012-09-21 9:49 [Bug c++/54652] New: ICE with -g jakub at gcc dot gnu.org
` (2 preceding siblings ...)
2014-01-27 19:16 ` jason at gcc dot gnu.org
@ 2014-01-28 4:32 ` jason at gcc dot gnu.org
2014-01-28 13:45 ` jason at gcc dot gnu.org
` (2 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: jason at gcc dot gnu.org @ 2014-01-28 4:32 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54652
--- Comment #3 from Jason Merrill <jason at gcc dot gnu.org> ---
Author: jason
Date: Tue Jan 28 04:31:30 2014
New Revision: 207169
URL: http://gcc.gnu.org/viewcvs?rev=207169&root=gcc&view=rev
Log:
PR c++/54652
* decl.c (duplicate_decls): Always use oldtype for TYPE_DECL.
Added:
trunk/gcc/testsuite/g++.dg/ext/attrib48.C
Modified:
trunk/gcc/cp/ChangeLog
trunk/gcc/cp/decl.c
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug c++/54652] [4.7/4.8/4.9 Regression] ICE with -g
2012-09-21 9:49 [Bug c++/54652] New: ICE with -g jakub at gcc dot gnu.org
` (3 preceding siblings ...)
2014-01-28 4:32 ` jason at gcc dot gnu.org
@ 2014-01-28 13:45 ` jason at gcc dot gnu.org
2014-01-28 13:51 ` jason at gcc dot gnu.org
2014-01-28 13:51 ` jason at gcc dot gnu.org
6 siblings, 0 replies; 8+ 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=54652
--- Comment #4 from Jason Merrill <jason at gcc dot gnu.org> ---
Author: jason
Date: Tue Jan 28 13:45:08 2014
New Revision: 207191
URL: http://gcc.gnu.org/viewcvs?rev=207191&root=gcc&view=rev
Log:
PR c++/54652
* decl.c (duplicate_decls): Always use oldtype for TYPE_DECL.
Added:
branches/gcc-4_8-branch/gcc/testsuite/g++.dg/ext/attrib48.C
Modified:
branches/gcc-4_8-branch/gcc/cp/ChangeLog
branches/gcc-4_8-branch/gcc/cp/decl.c
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug c++/54652] [4.7/4.8/4.9 Regression] ICE with -g
2012-09-21 9:49 [Bug c++/54652] New: ICE with -g jakub at gcc dot gnu.org
` (5 preceding siblings ...)
2014-01-28 13:51 ` jason at gcc dot gnu.org
@ 2014-01-28 13:51 ` jason at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: jason at gcc dot gnu.org @ 2014-01-28 13:51 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54652
Jason Merrill <jason at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #5 from Jason Merrill <jason at gcc dot gnu.org> ---
Fixed.
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug c++/54652] [4.7/4.8/4.9 Regression] ICE with -g
2012-09-21 9:49 [Bug c++/54652] New: ICE with -g jakub at gcc dot gnu.org
` (4 preceding siblings ...)
2014-01-28 13:45 ` jason at gcc dot gnu.org
@ 2014-01-28 13:51 ` jason at gcc dot gnu.org
2014-01-28 13:51 ` jason at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: jason at gcc dot gnu.org @ 2014-01-28 13:51 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54652
--- Comment #6 from Jason Merrill <jason at gcc dot gnu.org> ---
Author: jason
Date: Tue Jan 28 13:51:15 2014
New Revision: 207192
URL: http://gcc.gnu.org/viewcvs?rev=207192&root=gcc&view=rev
Log:
PR c++/54652
* decl.c (duplicate_decls): Always use oldtype for TYPE_DECL.
Added:
branches/gcc-4_7-branch/gcc/testsuite/g++.dg/ext/attrib48.C
Modified:
branches/gcc-4_7-branch/gcc/cp/ChangeLog
branches/gcc-4_7-branch/gcc/cp/decl.c
^ permalink raw reply [flat|nested] 8+ messages in thread
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2012-09-21 9:49 [Bug c++/54652] New: ICE with -g jakub at gcc dot gnu.org
2013-10-19 22:44 ` [Bug c++/54652] [4.7/4.8/4.9 Regression] " reichelt at gcc dot gnu.org
2013-10-25 11:21 ` rguenth at gcc dot gnu.org
2014-01-27 19:16 ` jason at gcc dot gnu.org
2014-01-28 4:32 ` jason at gcc dot gnu.org
2014-01-28 13:45 ` jason at gcc dot gnu.org
2014-01-28 13:51 ` jason at gcc dot gnu.org
2014-01-28 13:51 ` jason at gcc dot gnu.org
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