[Bug c++/11120] New: gcc 3.4 doesn't emit code for template methods used through function pointers

[lars@trolltech.com]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11120

           Summary: gcc 3.4 doesn't emit code for template methods used
                    through function pointers
           Product: gcc
           Version: 3.4
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: lars@trolltech.com
                CC: gcc-bugs@gcc.gnu.org
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu

The code below gives an undefined reference to Bar<T>::bar(). The same code
compiles and links fine in 3.2.

int foo( int(* bar)() )
{
    return bar();
}


template<class T> class Bar
{
public:
    static int bar();
    int baz();
};


template<class T>
int Bar<T>::bar()
{
    return 1;
}


template<class T>
int Bar<T>::baz()
{
    return foo(bar);
}


int main(int argc, char **argv)
{
    Bar<int> b;
    return b.baz();
}

[lars@binky gcc-bugs]$ gcc function_ptr.cpp
/tmp/cc4c2Aaa.o: In function `Bar<int>::baz()':
/tmp/cc4c2Aaa.o(.gnu.linkonce.t._ZN3BarIiE3bazEv+0x9): undefined reference to
`Bar<int>::bar()'
/tmp/cc4c2Aaa.o(.eh_frame+0x11): undefined reference to `__gxx_personality_v0'
collect2: ld returned 1 exit status
[lars@binky gcc-bugs]$ gcc -v
Reading specs from /home/lars/gcc/lib/gcc-lib/i686-pc-linux-gnu/3.4/specs
Configured with: ../gcc/configure --prefix=/home/lars/gcc --disable-libgcj
Thread model: posix
gcc version 3.4 20030605 (experimental)