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* [Bug c++/55542] New: g++ segmentation fault
@ 2012-11-30 5:23 hpsMouse at gmail dot com
2012-11-30 8:36 ` [Bug c++/55542] " jakub at gcc dot gnu.org
` (7 more replies)
0 siblings, 8 replies; 9+ messages in thread
From: hpsMouse at gmail dot com @ 2012-11-30 5:23 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55542
Bug #: 55542
Summary: g++ segmentation fault
Classification: Unclassified
Product: gcc
Version: 4.7.2
Status: UNCONFIRMED
Severity: critical
Priority: P3
Component: c++
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: hpsMouse@gmail.com
Created attachment 28833
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28833
Preprocessed code to reproduce the bug (gzipped)
The fault happened when instantiation a template member function.
If the template definition is moved before its use point, this bug doesn't
occur.
Preprocessed code is attached.
Command line and output:
$ LC_ALL=C g++ -v -std=gnu++11 -xc++ -c code.out
Using built-in specs.
COLLECT_GCC=g++
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian 4.7.2-4'
--with-bugurl=file:///usr/share/doc/gcc-4.7/README.Bugs
--enable-languages=c,c++,go,fortran,objc,obj-c++ --prefix=/usr
--program-suffix=-4.7 --enable-shared --enable-linker-build-id
--with-system-zlib --libexecdir=/usr/lib --without-included-gettext
--enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.7
--libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu
--enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-gnu-unique-object
--enable-plugin --enable-objc-gc --with-arch-32=i586 --with-tune=generic
--enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu
--target=x86_64-linux-gnu
Thread model: posix
gcc version 4.7.2 (Debian 4.7.2-4)
COLLECT_GCC_OPTIONS='-v' '-std=gnu++11' '-c' '-shared-libgcc' '-mtune=generic'
'-march=x86-64'
/usr/lib/gcc/x86_64-linux-gnu/4.7/cc1plus -quiet -v -imultiarch
x86_64-linux-gnu -D_GNU_SOURCE code.out -quiet -dumpbase code.out
-mtune=generic -march=x86-64 -auxbase code -std=gnu++11 -version -o
/tmp/ccbhLils.s
GNU C++ (Debian 4.7.2-4) version 4.7.2 (x86_64-linux-gnu)
compiled by GNU C version 4.7.2, GMP version 5.0.5, MPFR version 3.1.0-p10,
MPC version 0.9
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
ignoring nonexistent directory "/usr/local/include/x86_64-linux-gnu"
ignoring nonexistent directory
"/usr/lib/gcc/x86_64-linux-gnu/4.7/../../../../x86_64-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
/usr/include/c++/4.7
/usr/include/c++/4.7/x86_64-linux-gnu
/usr/include/c++/4.7/backward
/usr/lib/gcc/x86_64-linux-gnu/4.7/include
/usr/local/include
/usr/lib/gcc/x86_64-linux-gnu/4.7/include-fixed
/usr/include/x86_64-linux-gnu
/usr/include
End of search list.
GNU C++ (Debian 4.7.2-4) version 4.7.2 (x86_64-linux-gnu)
compiled by GNU C version 4.7.2, GMP version 5.0.5, MPFR version 3.1.0-p10,
MPC version 0.9
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: 34bdacb89b7ae9c3d7f292b0c3935a9a
binary_writer.cpp: In instantiation of 'void cbsocket::BinaryWriter::nop(Args
...) [with Args = {const cbsocket::WeakBuffer&, cbsocket::FixedBuffer*}]':
binary_writer.cpp:20:43: required from here
binary_writer.cpp:105:6: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-4.7/README.Bugs> for instructions.
Preprocessed source stored into /tmp/ccWhkhq5.out file, please attach this to
your bugreport.
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/55542] g++ segmentation fault
2012-11-30 5:23 [Bug c++/55542] New: g++ segmentation fault hpsMouse at gmail dot com
@ 2012-11-30 8:36 ` jakub at gcc dot gnu.org
2012-11-30 8:39 ` jakub at gcc dot gnu.org
` (6 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: jakub at gcc dot gnu.org @ 2012-11-30 8:36 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55542
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2012-11-30
CC| |jakub at gcc dot gnu.org
Ever Confirmed|0 |1
--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-11-30 08:36:24 UTC ---
Reduced testcase:
template <typename ... P>
struct B
{
template <typename O>
B (O *o, void (O::*f) (P ... p)) {}
};
class C
{
void foo (void *, int);
template <typename ... A>
void bar (A ... a);
B <void *> c;
B <void *, int> d;
C (int) : c (this, &C::bar), d (this, &C::foo) {}
};
template <typename ... A>
void C::bar (A ...)
{
}
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/55542] g++ segmentation fault
2012-11-30 5:23 [Bug c++/55542] New: g++ segmentation fault hpsMouse at gmail dot com
2012-11-30 8:36 ` [Bug c++/55542] " jakub at gcc dot gnu.org
@ 2012-11-30 8:39 ` jakub at gcc dot gnu.org
2012-11-30 8:42 ` jakub at gcc dot gnu.org
` (5 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: jakub at gcc dot gnu.org @ 2012-11-30 8:39 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55542
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jason at gcc dot gnu.org
Target Milestone|--- |4.6.4
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/55542] g++ segmentation fault
2012-11-30 5:23 [Bug c++/55542] New: g++ segmentation fault hpsMouse at gmail dot com
2012-11-30 8:36 ` [Bug c++/55542] " jakub at gcc dot gnu.org
2012-11-30 8:39 ` jakub at gcc dot gnu.org
@ 2012-11-30 8:42 ` jakub at gcc dot gnu.org
2012-11-30 8:58 ` paolo.carlini at oracle dot com
` (4 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: jakub at gcc dot gnu.org @ 2012-11-30 8:42 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55542
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
AssignedTo|unassigned at gcc dot |jakub at gcc dot gnu.org
|gnu.org |
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-11-30 08:41:45 UTC ---
Created attachment 28834
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28834
gcc48-pr55542.patch
I'd say that because the parameter pack is unnamed, it is fine to keep the
individual parameters in it unnamed too, and the other
make_ith_pack_parameter_name invocation was already guarding it.
Instead of handling NULL in the caller in the other spot, I think it is cleaner
just to return NULL from make_ith_pack_parameter_name.
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/55542] g++ segmentation fault
2012-11-30 5:23 [Bug c++/55542] New: g++ segmentation fault hpsMouse at gmail dot com
` (2 preceding siblings ...)
2012-11-30 8:42 ` jakub at gcc dot gnu.org
@ 2012-11-30 8:58 ` paolo.carlini at oracle dot com
2012-11-30 14:20 ` jason at gcc dot gnu.org
` (3 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: paolo.carlini at oracle dot com @ 2012-11-30 8:58 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55542
Paolo Carlini <paolo.carlini at oracle dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Severity|critical |normal
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/55542] g++ segmentation fault
2012-11-30 5:23 [Bug c++/55542] New: g++ segmentation fault hpsMouse at gmail dot com
` (3 preceding siblings ...)
2012-11-30 8:58 ` paolo.carlini at oracle dot com
@ 2012-11-30 14:20 ` jason at gcc dot gnu.org
2012-11-30 23:52 ` jakub at gcc dot gnu.org
` (2 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: jason at gcc dot gnu.org @ 2012-11-30 14:20 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55542
--- Comment #3 from Jason Merrill <jason at gcc dot gnu.org> 2012-11-30 14:19:40 UTC ---
The patch is OK.
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/55542] g++ segmentation fault
2012-11-30 5:23 [Bug c++/55542] New: g++ segmentation fault hpsMouse at gmail dot com
` (4 preceding siblings ...)
2012-11-30 14:20 ` jason at gcc dot gnu.org
@ 2012-11-30 23:52 ` jakub at gcc dot gnu.org
2013-02-01 14:04 ` jakub at gcc dot gnu.org
2013-02-01 14:27 ` jakub at gcc dot gnu.org
7 siblings, 0 replies; 9+ messages in thread
From: jakub at gcc dot gnu.org @ 2012-11-30 23:52 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55542
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-11-30 23:51:31 UTC ---
Author: jakub
Date: Fri Nov 30 23:51:26 2012
New Revision: 194010
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=194010
Log:
PR c++/55542
* pt.c (make_ith_pack_parameter_name): Return NULL if
name is NULL.
(tsubst_decl): Call make_ith_pack_parameter_name even if
DECL_NAME is NULL.
* g++.dg/cpp0x/vt-55542.C: New test.
Added:
trunk/gcc/testsuite/g++.dg/cpp0x/vt-55542.C
Modified:
trunk/gcc/cp/ChangeLog
trunk/gcc/cp/pt.c
trunk/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/55542] g++ segmentation fault
2012-11-30 5:23 [Bug c++/55542] New: g++ segmentation fault hpsMouse at gmail dot com
` (5 preceding siblings ...)
2012-11-30 23:52 ` jakub at gcc dot gnu.org
@ 2013-02-01 14:04 ` jakub at gcc dot gnu.org
2013-02-01 14:27 ` jakub at gcc dot gnu.org
7 siblings, 0 replies; 9+ messages in thread
From: jakub at gcc dot gnu.org @ 2013-02-01 14:04 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55542
--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> 2013-02-01 14:03:49 UTC ---
Author: jakub
Date: Fri Feb 1 14:03:44 2013
New Revision: 195652
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=195652
Log:
Backported from mainline
2012-12-01 Jakub Jelinek <jakub@redhat.com>
PR c++/55542
* pt.c (make_ith_pack_parameter_name): Return NULL if
name is NULL.
(tsubst_decl): Call make_ith_pack_parameter_name even if
DECL_NAME is NULL.
* g++.dg/cpp0x/vt-55542.C: New test.
Added:
branches/gcc-4_7-branch/gcc/testsuite/g++.dg/cpp0x/vt-55542.C
Modified:
branches/gcc-4_7-branch/gcc/cp/ChangeLog
branches/gcc-4_7-branch/gcc/cp/pt.c
branches/gcc-4_7-branch/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/55542] g++ segmentation fault
2012-11-30 5:23 [Bug c++/55542] New: g++ segmentation fault hpsMouse at gmail dot com
` (6 preceding siblings ...)
2013-02-01 14:04 ` jakub at gcc dot gnu.org
@ 2013-02-01 14:27 ` jakub at gcc dot gnu.org
7 siblings, 0 replies; 9+ messages in thread
From: jakub at gcc dot gnu.org @ 2013-02-01 14:27 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55542
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> 2013-02-01 14:26:58 UTC ---
Fixed for 4.7.3+.
^ permalink raw reply [flat|nested] 9+ messages in thread
end of thread, other threads:[~2013-02-01 14:27 UTC | newest]
Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2012-11-30 5:23 [Bug c++/55542] New: g++ segmentation fault hpsMouse at gmail dot com
2012-11-30 8:36 ` [Bug c++/55542] " jakub at gcc dot gnu.org
2012-11-30 8:39 ` jakub at gcc dot gnu.org
2012-11-30 8:42 ` jakub at gcc dot gnu.org
2012-11-30 8:58 ` paolo.carlini at oracle dot com
2012-11-30 14:20 ` jason at gcc dot gnu.org
2012-11-30 23:52 ` jakub at gcc dot gnu.org
2013-02-01 14:04 ` jakub at gcc dot gnu.org
2013-02-01 14:27 ` jakub at gcc dot gnu.org
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