http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49258
--- Comment #7 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-04-09
19:40:41 UTC ---
(In reply to comment #6)
> and i test a c++ file,it will remove the unused funcitons "notused":
But that is not the same as there is no vtable for hello.
Try:
#include <iostream>
class hello
{
public:
hello()
{
}
virtual void notused()
{
std::cout << "not used";
}
virtual void used()
{
std::cout << "used";
}
virtual ~hello()
{
}
}hi;
int main()
{ hello t;
t.used();
return 0;
}
And see the result.
