Re: wip-rtl native closure creation

[Andy Wingo]

On Mon 06 Aug 2012 11:39, Sjoerd van Leent Privé <address@hidden> writes:

> Wouldn't it be feasible in the future that there might be, because of
> more memory, other designs, such as caching, which create much more
> closures than current designs? I don't know, but on 64-bit platforms
> (and perhaps even architectures with a larger bus), it seems to me that
> it is necessary to stick to this bus length.

I think the short answer is "no".  The long answer: although in the
execution of a program there may be a practically unbounded number of
closures, there is only a finite number of source locations, and
multiple closures for a given source location share code.  (Modulo
optimization and inlining and such things.)

So a 32-bit relative offset from a compilation unit's bytecode to native
code will be sufficient for at least, I dunno, a decade or so -- until
maybe we don't have bytecode at all any more.

Andy
-- 
http://wingolog.org/