vtable layout

[Jason Merrill]

>>>>> Christophe de Dinechin <ddd at cup.hp.com> writes:

 >> This isn't an outrageous idea, it only works for nonvirtual inheritance
 >> but we are already on a path where the solutions for the virtual and
 >> nonvirtual cases have to be different.  We end up with more entry
 >> points, but they are simpler than the reach-back-into-the-vtable ones.

 > ... And quite slower too ...

Why?

Jason