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* [Bug c++/63649] New: 5.0: ICE with init_priority
@ 2014-10-26 13:18 adam at os dot inf.tu-dresden.de
2014-10-26 15:35 ` [Bug ipa/63649] [5 Regression] ICE: Segmentation fault in gcc/ipa-comdats.c:332 trippels at gcc dot gnu.org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: adam at os dot inf.tu-dresden.de @ 2014-10-26 13:18 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63649
Bug ID: 63649
Summary: 5.0: ICE with init_priority
Product: gcc
Version: 5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: adam at os dot inf.tu-dresden.de
The following code causes an ICE:
struct Per_cpu_ctor_data
{
typedef void (*Func)();
Per_cpu_ctor_data() = default;
void *_base;
};
class Per_cpu_data
{
private:
typedef Per_cpu_ctor_data Ctor;
struct Ctor_vector { void push_back(Ctor::Func func); };
static Ctor_vector ctors;
};
template< typename T >
class Per_cpu : private Per_cpu_data
{
public:
typedef T Type;
Per_cpu();
static void f1();
};
template< typename T > Per_cpu<T>::Per_cpu() { ctors.push_back(&f1); }
template< typename T > void Per_cpu<T>::f1() {}
class A { static Per_cpu<int *> a; };
static Per_cpu_ctor_data __b;
__attribute__((init_priority(0xfffe))) Per_cpu<int *> A::a;
$ g++ --version
g++ (GCC) 5.0.0 20141026 (experimental)
$ uname -m
x86_64
$ g++ -c -std=c++0x -O1 t.i
mem_space.i:31:59: internal compiler error: Segmentation fault
__attribute__((init_priority(0xfffe))) Per_cpu<int *> A::a;
^
0xc022af crash_signal
../../gcc/gcc/toplev.c:349
0x11df22c ipa_comdats
../../gcc/gcc/ipa-comdats.c:330
0x11df22c execute
../../gcc/gcc/ipa-comdats.c:371
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
I could not reduce the testcase more as the segfault would not happen.
The segfault also does not happen with -O0, and it also does not happen with
init_priority 0xffff.
Code compiles with gcc <= 4.9.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug ipa/63649] [5 Regression] ICE: Segmentation fault in gcc/ipa-comdats.c:332
2014-10-26 13:18 [Bug c++/63649] New: 5.0: ICE with init_priority adam at os dot inf.tu-dresden.de
@ 2014-10-26 15:35 ` trippels at gcc dot gnu.org
2014-10-26 16:58 ` trippels at gcc dot gnu.org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: trippels at gcc dot gnu.org @ 2014-10-26 15:35 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63649
Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Known to work| |4.8.3, 4.9.2
Last reconfirmed| |2014-10-26
Component|c++ |ipa
CC| |hubicka at gcc dot gnu.org,
| |trippels at gcc dot gnu.org
Ever confirmed|0 |1
Summary|5.0: ICE with init_priority |[5 Regression] ICE:
| |Segmentation fault in
| |gcc/ipa-comdats.c:332
Target Milestone|--- |5.0
Known to fail| |5.0
--- Comment #1 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
Started with r210597.
A bit more reduced:
markus@x4 /tmp % cat ipa.ii
struct A
{
typedef void Func ();
A () = default;
void *_base;
};
struct B
{
struct Ctor_vector
{
void m_fn1 (A::Func);
} ctors;
};
template <typename> class C : B
{
public:
C ();
static void
m_fn2 ()
{
}
};
A b;
__attribute__ ((init_priority (0xfffe))) C<int> a;
template <typename T> C<T>::C () { ctors.m_fn1 (m_fn2); }
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug ipa/63649] [5 Regression] ICE: Segmentation fault in gcc/ipa-comdats.c:332
2014-10-26 13:18 [Bug c++/63649] New: 5.0: ICE with init_priority adam at os dot inf.tu-dresden.de
2014-10-26 15:35 ` [Bug ipa/63649] [5 Regression] ICE: Segmentation fault in gcc/ipa-comdats.c:332 trippels at gcc dot gnu.org
@ 2014-10-26 16:58 ` trippels at gcc dot gnu.org
2014-10-31 21:31 ` adam at os dot inf.tu-dresden.de
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: trippels at gcc dot gnu.org @ 2014-10-26 16:58 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63649
Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Assignee|unassigned at gcc dot gnu.org |trippels at gcc dot gnu.org
--- Comment #2 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
Possible fix:
diff --git a/gcc/ipa-comdats.c b/gcc/ipa-comdats.c
index b270d9717b27..8843410545e0 100644
--- a/gcc/ipa-comdats.c
+++ b/gcc/ipa-comdats.c
@@ -317,8 +317,11 @@ ipa_comdats (void)
&& !symbol->alias
&& symbol->real_symbol_p ())
{
- tree group = *map.get (symbol);
+ tree *val = map.get (symbol);
+ if (!val)
+ continue;
+ group = *val;
if (group == error_mark_node)
continue;
if (dump_file)
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug ipa/63649] [5 Regression] ICE: Segmentation fault in gcc/ipa-comdats.c:332
2014-10-26 13:18 [Bug c++/63649] New: 5.0: ICE with init_priority adam at os dot inf.tu-dresden.de
2014-10-26 15:35 ` [Bug ipa/63649] [5 Regression] ICE: Segmentation fault in gcc/ipa-comdats.c:332 trippels at gcc dot gnu.org
2014-10-26 16:58 ` trippels at gcc dot gnu.org
@ 2014-10-31 21:31 ` adam at os dot inf.tu-dresden.de
2014-11-20 12:40 ` rguenth at gcc dot gnu.org
2014-12-15 1:04 ` hubicka at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: adam at os dot inf.tu-dresden.de @ 2014-10-31 21:31 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63649
--- Comment #3 from Adam Lackorzynski <adam at os dot inf.tu-dresden.de> ---
Thanks, seems to fix the issue for me.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug ipa/63649] [5 Regression] ICE: Segmentation fault in gcc/ipa-comdats.c:332
2014-10-26 13:18 [Bug c++/63649] New: 5.0: ICE with init_priority adam at os dot inf.tu-dresden.de
` (2 preceding siblings ...)
2014-10-31 21:31 ` adam at os dot inf.tu-dresden.de
@ 2014-11-20 12:40 ` rguenth at gcc dot gnu.org
2014-12-15 1:04 ` hubicka at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2014-11-20 12:40 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63649
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P1
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug ipa/63649] [5 Regression] ICE: Segmentation fault in gcc/ipa-comdats.c:332
2014-10-26 13:18 [Bug c++/63649] New: 5.0: ICE with init_priority adam at os dot inf.tu-dresden.de
` (3 preceding siblings ...)
2014-11-20 12:40 ` rguenth at gcc dot gnu.org
@ 2014-12-15 1:04 ` hubicka at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: hubicka at gcc dot gnu.org @ 2014-12-15 1:04 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63649
Jan Hubicka <hubicka at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #4 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
this no longer reproduce to me. I suppose it was fixed by the fix for PR
ipa/61324
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2014-12-15 1:04 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2014-10-26 13:18 [Bug c++/63649] New: 5.0: ICE with init_priority adam at os dot inf.tu-dresden.de
2014-10-26 15:35 ` [Bug ipa/63649] [5 Regression] ICE: Segmentation fault in gcc/ipa-comdats.c:332 trippels at gcc dot gnu.org
2014-10-26 16:58 ` trippels at gcc dot gnu.org
2014-10-31 21:31 ` adam at os dot inf.tu-dresden.de
2014-11-20 12:40 ` rguenth at gcc dot gnu.org
2014-12-15 1:04 ` hubicka at gcc dot gnu.org
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