[Bug c++/50243] vtable for pure abstract class (interface) shouldn't be emitted

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50243

Jason Merrill <jason at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2013-03-25
                 CC|                            |jason at gcc dot gnu.org
         Depends on|                            |34949
     Ever Confirmed|0                           |1

--- Comment #3 from Jason Merrill <jason at gcc dot gnu.org> 2013-03-25 22:11:45 UTC ---
(In reply to comment #0)
> Note: this is probably easier to do if ‘Bug 34949 - Dead code in empty
> destructors.’ is done.

Yes, this is really a consequence, almost a duplicate, of 34949.  If we
recognize that the store is dead because nothing can refer to the object's
vptr, then we can optimize away the reference to the vtable and so the vtable
won't be emitted.