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* [Bug c++/40388] New: another null pointer in remove_unreachable_regions
@ 2009-06-09 13:04 dcb314 at hotmail dot com
2009-06-09 14:27 ` [Bug middle-end/40388] [4.5 Regression] " rguenth at gcc dot gnu dot org
` (11 more replies)
0 siblings, 12 replies; 13+ messages in thread
From: dcb314 at hotmail dot com @ 2009-06-09 13:04 UTC (permalink / raw)
To: gcc-bugs
I just tried to compile the Suse Factory package blocxx-2.1.0.342-124.7
with the GNU g++ version 4.5 snapshot 20090604.
The compiler said
SecureRand.cpp: In function 'void<unnamed>::rand_init_impl()':
SecureRand.cpp:667:7: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
Preprocessed source code attached. Flag -O2 required.
Here is valgrind helping out with a stack backtrace
==8611== Invalid read of size 8
==8611== at 0x6EE6FF: remove_unreachable_regions (bitmap.h:225)
==8611== Address 0x0 is not stack'd, malloc'd or (recently) free'd
This bug seems to be different to # 40163.
--
Summary: another null pointer in remove_unreachable_regions
Product: gcc
Version: 4.5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: dcb314 at hotmail dot com
GCC host triplet: x86_64-suse-linux
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40388
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug middle-end/40388] [4.5 Regression] another null pointer in remove_unreachable_regions
2009-06-09 13:04 [Bug c++/40388] New: another null pointer in remove_unreachable_regions dcb314 at hotmail dot com
@ 2009-06-09 14:27 ` rguenth at gcc dot gnu dot org
2009-06-10 8:28 ` dcb314 at hotmail dot com
` (10 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2009-06-09 14:27 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from rguenth at gcc dot gnu dot org 2009-06-09 14:27 -------
Can you attach preprocessed source?
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |hubicka at gcc dot gnu dot
| |org
Component|c++ |middle-end
Keywords| |ice-on-valid-code
Summary|another null pointer in |[4.5 Regression] another
|remove_unreachable_regions |null pointer in
| |remove_unreachable_regions
Target Milestone|--- |4.5.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40388
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug middle-end/40388] [4.5 Regression] another null pointer in remove_unreachable_regions
2009-06-09 13:04 [Bug c++/40388] New: another null pointer in remove_unreachable_regions dcb314 at hotmail dot com
2009-06-09 14:27 ` [Bug middle-end/40388] [4.5 Regression] " rguenth at gcc dot gnu dot org
@ 2009-06-10 8:28 ` dcb314 at hotmail dot com
2009-06-10 12:01 ` hjl dot tools at gmail dot com
` (9 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: dcb314 at hotmail dot com @ 2009-06-10 8:28 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from dcb314 at hotmail dot com 2009-06-10 08:28 -------
Created an attachment (id=17973)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=17973&action=view)
C++ source code
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40388
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug middle-end/40388] [4.5 Regression] another null pointer in remove_unreachable_regions
2009-06-09 13:04 [Bug c++/40388] New: another null pointer in remove_unreachable_regions dcb314 at hotmail dot com
2009-06-09 14:27 ` [Bug middle-end/40388] [4.5 Regression] " rguenth at gcc dot gnu dot org
2009-06-10 8:28 ` dcb314 at hotmail dot com
@ 2009-06-10 12:01 ` hjl dot tools at gmail dot com
2009-06-10 14:43 ` reichelt at gcc dot gnu dot org
` (8 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: hjl dot tools at gmail dot com @ 2009-06-10 12:01 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from hjl dot tools at gmail dot com 2009-06-10 12:00 -------
It is caused by revision 146776:
http://gcc.gnu.org/ml/gcc-cvs/2009-04/msg01418.html
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40388
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug middle-end/40388] [4.5 Regression] another null pointer in remove_unreachable_regions
2009-06-09 13:04 [Bug c++/40388] New: another null pointer in remove_unreachable_regions dcb314 at hotmail dot com
` (2 preceding siblings ...)
2009-06-10 12:01 ` hjl dot tools at gmail dot com
@ 2009-06-10 14:43 ` reichelt at gcc dot gnu dot org
2009-06-10 15:51 ` reichelt at gcc dot gnu dot org
` (7 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: reichelt at gcc dot gnu dot org @ 2009-06-10 14:43 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from reichelt at gcc dot gnu dot org 2009-06-10 14:43 -------
Confirmed. Reduced testcase (already crashes with "-O"):
======================================
struct A
{
~A();
};
struct B
{
A* p;
~B()
{
if (p)
delete p;
delete p;
}
};
struct C
{
B* q;
~C()
{
try
{
delete q;
}
catch (...)
{
}
}
};
void foo()
{
C c1, c2;
}
======================================
--
reichelt at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |reichelt at gcc dot gnu dot
| |org
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2009-06-10 14:43:14
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40388
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug middle-end/40388] [4.5 Regression] another null pointer in remove_unreachable_regions
2009-06-09 13:04 [Bug c++/40388] New: another null pointer in remove_unreachable_regions dcb314 at hotmail dot com
` (3 preceding siblings ...)
2009-06-10 14:43 ` reichelt at gcc dot gnu dot org
@ 2009-06-10 15:51 ` reichelt at gcc dot gnu dot org
2009-07-09 15:32 ` rguenth at gcc dot gnu dot org
` (6 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: reichelt at gcc dot gnu dot org @ 2009-06-10 15:51 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from reichelt at gcc dot gnu dot org 2009-06-10 15:50 -------
Even shorter testcase:
==================
void foo();
struct A
{
~A()
{
try
{
foo();
foo();
}
catch (...)
{
}
}
};
void bar()
{
A a1, a2;
}
==================
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40388
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug middle-end/40388] [4.5 Regression] another null pointer in remove_unreachable_regions
2009-06-09 13:04 [Bug c++/40388] New: another null pointer in remove_unreachable_regions dcb314 at hotmail dot com
` (4 preceding siblings ...)
2009-06-10 15:51 ` reichelt at gcc dot gnu dot org
@ 2009-07-09 15:32 ` rguenth at gcc dot gnu dot org
2009-07-10 22:36 ` hubicka at ucw dot cz
` (5 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2009-07-09 15:32 UTC (permalink / raw)
To: gcc-bugs
------- Comment #6 from rguenth at gcc dot gnu dot org 2009-07-09 15:32 -------
#1 0x00000000008c8613 in can_be_reached_by_runtime (contains_stmt=0x188ab30,
r=0x7ffff5fc33f0) at /space/rguenther/src/svn/trunk/gcc/except.c:569
569 EXECUTE_IF_SET_IN_BITMAP (i->aka, 0, n, bi)
(gdb) p i->aka
$1 = (bitmap) 0x0
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P1
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40388
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug middle-end/40388] [4.5 Regression] another null pointer in remove_unreachable_regions
2009-06-09 13:04 [Bug c++/40388] New: another null pointer in remove_unreachable_regions dcb314 at hotmail dot com
` (5 preceding siblings ...)
2009-07-09 15:32 ` rguenth at gcc dot gnu dot org
@ 2009-07-10 22:36 ` hubicka at ucw dot cz
2009-07-11 19:08 ` hubicka at gcc dot gnu dot org
` (4 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: hubicka at ucw dot cz @ 2009-07-10 22:36 UTC (permalink / raw)
To: gcc-bugs
------- Comment #7 from hubicka at ucw dot cz 2009-07-10 22:36 -------
Subject: Re: [4.5 Regression] another null pointer in
remove_unreachable_regions
> 569 EXECUTE_IF_SET_IN_BITMAP (i->aka, 0, n, bi)
> (gdb) p i->aka
> $1 = (bitmap) 0x0
oops, forgot about this issue. Testing obvious patch checking for
i->aka being NULL.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40388
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug middle-end/40388] [4.5 Regression] another null pointer in remove_unreachable_regions
2009-06-09 13:04 [Bug c++/40388] New: another null pointer in remove_unreachable_regions dcb314 at hotmail dot com
` (6 preceding siblings ...)
2009-07-10 22:36 ` hubicka at ucw dot cz
@ 2009-07-11 19:08 ` hubicka at gcc dot gnu dot org
2009-07-12 18:33 ` hjl dot tools at gmail dot com
` (3 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: hubicka at gcc dot gnu dot org @ 2009-07-11 19:08 UTC (permalink / raw)
To: gcc-bugs
------- Comment #8 from hubicka at gcc dot gnu dot org 2009-07-11 19:08 -------
Fixed.
--
hubicka at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40388
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug middle-end/40388] [4.5 Regression] another null pointer in remove_unreachable_regions
2009-06-09 13:04 [Bug c++/40388] New: another null pointer in remove_unreachable_regions dcb314 at hotmail dot com
` (8 preceding siblings ...)
2009-07-12 18:33 ` hjl dot tools at gmail dot com
@ 2009-07-12 18:33 ` hjl dot tools at gmail dot com
2009-07-12 20:23 ` jason at gcc dot gnu dot org
2009-07-12 22:44 ` hubicka at ucw dot cz
11 siblings, 0 replies; 13+ messages in thread
From: hjl dot tools at gmail dot com @ 2009-07-12 18:33 UTC (permalink / raw)
To: gcc-bugs
------- Comment #10 from hjl dot tools at gmail dot com 2009-07-12 18:33 -------
The same failure happens on Linux/Intel64 and Linux/ia64.
--
hjl dot tools at gmail dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|FIXED |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40388
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug middle-end/40388] [4.5 Regression] another null pointer in remove_unreachable_regions
2009-06-09 13:04 [Bug c++/40388] New: another null pointer in remove_unreachable_regions dcb314 at hotmail dot com
` (7 preceding siblings ...)
2009-07-11 19:08 ` hubicka at gcc dot gnu dot org
@ 2009-07-12 18:33 ` hjl dot tools at gmail dot com
2009-07-12 18:33 ` hjl dot tools at gmail dot com
` (2 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: hjl dot tools at gmail dot com @ 2009-07-12 18:33 UTC (permalink / raw)
To: gcc-bugs
------- Comment #9 from hjl dot tools at gmail dot com 2009-07-12 18:32 -------
It doesn't work. On Linux/ia32, I got
FAIL: g++.dg/torture/pr40388.C -O0 (test for excess errors)
FAIL: g++.dg/torture/pr40388.C -O1 (test for excess errors)
FAIL: g++.dg/torture/pr40388.C -O2 (test for excess errors)
FAIL: g++.dg/torture/pr40388.C -O3 -fomit-frame-pointer (test for excess
errors)
FAIL: g++.dg/torture/pr40388.C -O3 -g (test for excess errors)
FAIL: g++.dg/torture/pr40388.C -Os (test for excess errors)
--
hjl dot tools at gmail dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed|2009-06-22 01:18:11 |2009-07-12 18:32:53
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40388
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug middle-end/40388] [4.5 Regression] another null pointer in remove_unreachable_regions
2009-06-09 13:04 [Bug c++/40388] New: another null pointer in remove_unreachable_regions dcb314 at hotmail dot com
` (9 preceding siblings ...)
2009-07-12 18:33 ` hjl dot tools at gmail dot com
@ 2009-07-12 20:23 ` jason at gcc dot gnu dot org
2009-07-12 22:44 ` hubicka at ucw dot cz
11 siblings, 0 replies; 13+ messages in thread
From: jason at gcc dot gnu dot org @ 2009-07-12 20:23 UTC (permalink / raw)
To: gcc-bugs
------- Comment #11 from jason at gcc dot gnu dot org 2009-07-12 20:23 -------
The testsuite failure was due to a double paste into the testcase; fixing that
maxes it work.
--
jason at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|REOPENED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40388
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug middle-end/40388] [4.5 Regression] another null pointer in remove_unreachable_regions
2009-06-09 13:04 [Bug c++/40388] New: another null pointer in remove_unreachable_regions dcb314 at hotmail dot com
` (10 preceding siblings ...)
2009-07-12 20:23 ` jason at gcc dot gnu dot org
@ 2009-07-12 22:44 ` hubicka at ucw dot cz
11 siblings, 0 replies; 13+ messages in thread
From: hubicka at ucw dot cz @ 2009-07-12 22:44 UTC (permalink / raw)
To: gcc-bugs
------- Comment #12 from hubicka at ucw dot cz 2009-07-12 22:44 -------
Subject: Re: [4.5 Regression] another null pointer in
remove_unreachable_regions
> The testsuite failure was due to a double paste into the testcase; fixing that
> maxes it work.
Uh, double application of patch..
Thanks for fixing it!
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40388
^ permalink raw reply [flat|nested] 13+ messages in thread
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2009-06-09 13:04 [Bug c++/40388] New: another null pointer in remove_unreachable_regions dcb314 at hotmail dot com
2009-06-09 14:27 ` [Bug middle-end/40388] [4.5 Regression] " rguenth at gcc dot gnu dot org
2009-06-10 8:28 ` dcb314 at hotmail dot com
2009-06-10 12:01 ` hjl dot tools at gmail dot com
2009-06-10 14:43 ` reichelt at gcc dot gnu dot org
2009-06-10 15:51 ` reichelt at gcc dot gnu dot org
2009-07-09 15:32 ` rguenth at gcc dot gnu dot org
2009-07-10 22:36 ` hubicka at ucw dot cz
2009-07-11 19:08 ` hubicka at gcc dot gnu dot org
2009-07-12 18:33 ` hjl dot tools at gmail dot com
2009-07-12 18:33 ` hjl dot tools at gmail dot com
2009-07-12 20:23 ` jason at gcc dot gnu dot org
2009-07-12 22:44 ` hubicka at ucw dot cz
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