[C++ PATCH] ctor vtable vcall offsets

[Jason Merrill]

>>>>> "Mark" == Mark Mitchell <mark@codesourcery.com> writes:

> I think that `declares f' was supposed to mean `has an entry for f in
> its vtable'.

Logically, the two are the same; a class only has entries in its vtable for
functions it declares.  The rest is just sharing for optimization.

> I think your literal reading is correct though.

Meaning you agree that we can/should emit all thunks with their functions?

> *My* beef with the thunk generation scheme (as you know :-) ) was that
> we didn't just generate thunks everywhere, in COMDAT, and then allow
> implementations to DTRT by generating an overriding strong symbol.
> Bizarre SCO linkers aside, I still like that solution best...

How about GNU linkers?  I don't think we give priority in linkonce
resolution to an instance which happens to contain a non-weak symbol.

Jason