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

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

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

--- Comment #3 from Dmitry G. Dyachenko <dimhen at gmail dot com> 2012-10-01 10:16:50 UTC ---
different (less) testcase

this code must be compiled with '-O1'.
w/o '-O1' or with '-O0' err not triggered

$ cat f1.ii
namespace std
{
template < typename _CharT > class A
{
public:
    A (_CharT *);
};
class B
{
};
}

class D:
    std::B
{
public:
    D (const D &):
        std::B (),
        wfile (0)
    {
    } D ():
    std::B (),
        wfile (0)
    {
    } std::A < int >
    wfile;
};

class
    C
{
    virtual bool
    get_current_pin ()
    {
        throw
        D ();
    }
};
$ g++ -O -flto -c -o f1.o f1.ii
$ g++ -O -flto -c -o f2.o f1.ii
$ g++ f1.o f2.o -flto -flto-partition=none -o .libs/libp.so
In member function 'get_current_pin':
lto1: internal compiler error: in input_gimple_stmt, at
gimple-streamer-in.c:254
0xbf78ab input_gimple_stmt
    /home/dimhen/src/gcc-current/gcc/gimple-streamer-in.c:253
0xbf78ab input_bb(lto_input_block*, LTO_tags, data_in*, function*, int)
    /home/dimhen/src/gcc-current/gcc/gimple-streamer-in.c:310
0x70f3e4 input_function
    /home/dimhen/src/gcc-current/gcc/lto-streamer-in.c:853
0x70f3e4 lto_read_body
    /home/dimhen/src/gcc-current/gcc/lto-streamer-in.c:977
0x70f3e4 lto_input_function_body(lto_file_decl_data*, tree_node*, char const*)
    /home/dimhen/src/gcc-current/gcc/lto-streamer-in.c:1022
0x4ccd8a lto_materialize_function
    /home/dimhen/src/gcc-current/gcc/lto/lto.c:226
0x4ccd8a materialize_cgraph
    /home/dimhen/src/gcc-current/gcc/lto/lto.c:3045
0x4d173a lto_main()
    /home/dimhen/src/gcc-current/gcc/lto/lto.c:3307
Please submit a full bug report,

gcc version 4.8.0 20121001 (experimental) [trunk revision 191884] (GCC)