On Fri, Oct 18, 2013 at 7:04 AM, Bennie Kloosteman <[email protected]>wrote:
> Im going to let this die because some Nursery designs ( like URC) can > have no header... > I hope you won't. But I'd be very happy to table it until I catch up with the headerless design literature and I can engage constructively. :-) I can see that a compacting collector for a nursery may not need the first header word, though it probably still needs the vtable pointer (depending on the language), and then the vtable pointer can be reused for the forwarding pointer. I was about to add that alignment restrictions make this a non-differentiating factor, but of course on 64-bit machines that isn't so. Amazing how we get stuck on things we've assumed for so long and have a hard time letting go of assumptions.
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