[Bug lto/54728] [4.8 regression] ICE in input_gimple_stmt, at gimple-streamer-in.c:254

["dimhen at gmail dot com" <gcc-bugzilla@gcc.gnu.org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54728

--- Comment #2 from Dmitry G. Dyachenko <dimhen at gmail dot com> 2012-09-27 12:27:33 UTC ---
for reduced test case:
$ cp fun1.ii fun2.ii
$ g++...


$ cat fun1.ii
class G;
template < typename, typename = G > class A;
class B
{
};
class G:B
{
};
template < typename _CharT, typename _Alloc > class A
{
    struct C
    {
        static C & _S_empty_rep ();
        _CharT *_M_refdata ();
    };
    struct H:_Alloc
    {
        H (_CharT *, _Alloc):_Alloc ()
        {
        }
    };
    H _M_dataplus;
    C & _S_empty_rep ()
    {
        return C::_S_empty_rep ();
    }
public:
    A ():_M_dataplus (_S_empty_rep ()._M_refdata (), _Alloc ())
    {
    }
};

extern template class A < char >;
class D
{
};
class F
{
};
template < typename _CharT > class I:D
{
    typedef _CharT char_type;
    typedef A < char_type > __string_type;
    __string_type _M_string;
};

template < typename _CharT > class J:F
{
    typedef I < _CharT > __stringbuf_type;
    __stringbuf_type _M_stringbuf;
};

J < char >a;