[Bug c++/45651] New: internal compiler error: in import_export_decl, at cp/decl2.c:2344

[Bug c++/45651] New: internal compiler error: in import_export_decl, at cp/decl2.c:2344

[kamaraju at gmail dot com]

root@kusumanchi:/home/593456# cat error.cpp 
namespace { template <int T> struct A {}; }
template <int T> struct B { void f(A<T>); };
template struct B<1>;
template<int T> void B<T>::f(A<T>) {}

root@kusumanchi:/home/593456# /usr/lib/gcc-snapshot/bin/g++ -v error.cpp 
Using built-in specs.
COLLECT_GCC=/usr/lib/gcc-snapshot/bin/g++
COLLECT_LTO_WRAPPER=/usr/lib/gcc-snapshot/libexec/gcc/i486-linux-gnu/4.6.0/lto-wrapper
Target: i486-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian 20100828-1'
--with-bugurl=file:///usr/share/doc/gcc-snapshot/README.Bugs
--enable-languages=c,ada,c++,fortran,objc,obj-c++
--prefix=/usr/lib/gcc-snapshot --enable-shared --enable-multiarch
--enable-linker-build-id --with-system-zlib --disable-nls --enable-clocale=gnu
--enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-plugin
--enable-gold --with-plugin-ld=ld.gold --enable-objc-gc --enable-targets=all
--with-arch-32=i586 --with-tune=generic --disable-werror --enable-checking=yes
--build=i486-linux-gnu --host=i486-linux-gnu --target=i486-linux-gnu
Thread model: posix
gcc version 4.6.0 20100828 (experimental) [trunk revision 163616] (Debian
20100828-1) 
COLLECT_GCC_OPTIONS='-v' '-shared-libgcc' '-mtune=generic' '-march=i586'
 /usr/lib/gcc-snapshot/libexec/gcc/i486-linux-gnu/4.6.0/cc1plus -quiet -v
-D_GNU_SOURCE error.cpp -quiet -dumpbase error.cpp -mtune=generic -march=i586
-auxbase error -version -o /tmp/ccQKGBGy.s
GNU C++ (Debian 20100828-1) version 4.6.0 20100828 (experimental) [trunk
revision 163616] (i486-linux-gnu)
        compiled by GNU C version 4.6.0 20100828 (experimental) [trunk revision
163616], GMP version 4.3.2, MPFR version 3.0.0-p3, MPC version 0.8.2
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
ignoring nonexistent directory "/usr/local/include/i486-linux-gnu"
ignoring nonexistent directory
"/usr/lib/gcc-snapshot/lib/gcc/i486-linux-gnu/4.6.0/../../../../i486-linux-gnu/include"
ignoring nonexistent directory "/usr/include/i486-linux-gnu"
#include "..." search starts here:
#include <...> search starts here:

/usr/lib/gcc-snapshot/lib/gcc/i486-linux-gnu/4.6.0/../../../../include/c++/4.6.0

/usr/lib/gcc-snapshot/lib/gcc/i486-linux-gnu/4.6.0/../../../../include/c++/4.6.0/i486-linux-gnu

/usr/lib/gcc-snapshot/lib/gcc/i486-linux-gnu/4.6.0/../../../../include/c++/4.6.0/backward
 /usr/lib/gcc-snapshot/lib/gcc/i486-linux-gnu/4.6.0/include
 /usr/local/include
 /usr/lib/gcc-snapshot/include
 /usr/lib/gcc-snapshot/lib/gcc/i486-linux-gnu/4.6.0/include-fixed
 /usr/include
End of search list.
GNU C++ (Debian 20100828-1) version 4.6.0 20100828 (experimental) [trunk
revision 163616] (i486-linux-gnu)
        compiled by GNU C version 4.6.0 20100828 (experimental) [trunk revision
163616], GMP version 4.3.2, MPFR version 3.0.0-p3, MPC version 0.8.2
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
Compiler executable checksum: 4e52e07a42ee405526b1bbb53d4dbd43
error.cpp: In instantiation of 'void B<T>::f({anonymous}::A<T>) [with int T =
1]':
error.cpp:3:17:   instantiated from here
error.cpp:4:37: internal compiler error: in import_export_decl, at
cp/decl2.c:2344
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-snapshot/README.Bugs> for instructions.



This bug was originally reported at
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=593456 . The bug seems to be
present since gcc-4.3.

Please let me know if you need any further information.


-- 
           Summary: internal compiler error: in import_export_decl, at
                    cp/decl2.c:2344
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: kamaraju at gmail dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45651

[Bug c++/45651] internal compiler error: in import_export_decl, at cp/decl2.c:2344

[steven at gcc dot gnu dot org]

-- 

steven at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jason at gcc dot gnu dot org
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2010-09-12 13:40:14
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45651

[Bug c++/45651] [4.3 / 4.4 / 4.5 / 4.6 Regression] ICE in import_export_decl, at cp/decl2.c:2344

[paolo dot carlini at oracle dot com]

------- Comment #1 from paolo dot carlini at oracle dot com  2010-09-12 13:46 -------
Happens in 4_2-branch too, 4_1-branch was fine.


-- 

paolo dot carlini at oracle dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|internal compiler error: in |[4.3 / 4.4 / 4.5 / 4.6
                   |import_export_decl, at      |Regression] ICE in
                   |cp/decl2.c:2344             |import_export_decl, at
                   |                            |cp/decl2.c:2344


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45651

[Bug c++/45651] [4.3/4.4/4.5/4.6 Regression] ICE in import_export_decl, at cp/decl2.c:2344

[rguenth at gcc dot gnu dot org]

-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.3.6


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45651

[Bug c++/45651] [4.3/4.4/4.5/4.6 Regression] ICE in import_export_decl, at cp/decl2.c:2344

[rguenth at gcc dot gnu dot org]

-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P2


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45651

[Bug c++/45651] [4.3/4.4/4.5/4.6 Regression] ICE in import_export_decl, at cp/decl2.c:2344

[paolo dot carlini at oracle dot com]

------- Comment #2 from paolo dot carlini at oracle dot com  2010-09-13 16:01 -------
Seems a rather annoying regression, let's ask H.J. a binary search...


-- 

paolo dot carlini at oracle dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |hjl dot tools at gmail dot
                   |                            |com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45651

[Bug c++/45651] [4.3/4.4/4.5/4.6 Regression] ICE in import_export_decl, at cp/decl2.c:2344

[hjl dot tools at gmail dot com]

------- Comment #3 from hjl dot tools at gmail dot com  2010-09-13 18:53 -------
It is caused by revision 115086:

http://gcc.gnu.org/ml/gcc-cvs/2006-06/msg00805.html


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45651

[Bug c++/45651] [4.3/4.4/4.5/4.6 Regression] ICE in import_export_decl, at cp/decl2.c:2344

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45651

--- Comment #4 from Jason Merrill <jason at gcc dot gnu.org> 2011-03-08 17:30:32 UTC ---
Author: jason
Date: Tue Mar  8 17:30:25 2011
New Revision: 170781

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=170781
Log:
    PR c++/45651
    * pt.c (instantiate_decl): Don't clear DECL_INTERFACE_KNOWN on
    !TREE_PUBLIC decls.

Added:
    trunk/gcc/testsuite/g++.dg/template/anon5.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/pt.c
    trunk/gcc/testsuite/ChangeLog

[Bug c++/45651] [4.3/4.4/4.5/4.6 Regression] ICE in import_export_decl, at cp/decl2.c:2344

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45651

Jason Merrill <jason at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
         AssignedTo|unassigned at gcc dot       |jason at gcc dot gnu.org
                   |gnu.org                     |