[Bug tree-optimization/60899] undef reference generated with -fdevirtualize-speculatively

[xinliangli at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60899

--- Comment #3 from davidxl <xinliangli at gmail dot com> ---
(In reply to Jan Hubicka from comment #2)
> David,
> it seems a_m.C should be different form a.C.  From chain of events you
> describe I think
> we need to figure out why the last folding happens.  Does the function pass 
> can_refer_decl_in_current_unit_p and if so, how does cgraph node look at
> that time?
> 
> Honza

Cut & paste error:

// a_m.cc

#include "a.h"
struct D2: public DI {
  virtual int doit () { return 3; }
};

extern int bar(DI*);
int main()
{
  D2 d2;
  return bar(&d2);
}