> On Aug 17, 2013, at 8:54 AM, Jan Hubicka <hubi...@ucw.cz> wrote: > > Moreover objc apparently never produce any virtual functions/methods. > > Objective-C++ might. :-) Sure, those ought to be regular C++ methods though. > > > Can someone explain me in greater detail how the objc use works? > > Objective-C uses it to manage code generation for post-increments of method > calls that involve a cast… in greater detail, no, that's just from a quick > read of the code.
OK, the real question is what objective-C expects middle end to do with OBJ_TYPE_REF. If it expects it to do some optimization, it is probably wrong, since I am not aware of any OBJ_TYPE_REF code that will work on types w/o virtual tables. If it expects to do nothing, I guess we ought to drop it at gimplification time. Honza
