AA Troubles

[dsimcha]

== Quote from Jonathan Crapuchettes (jcrapuchettes at gmail.com)'s article
> 1. I will give you implementation a try.
> 2. I have been compiling with 64-bit as I expect most of the programs I write
> require more than 4GB of memory.
> Thanks!

Unfortunately RandAA doesn't work on 64-bit yet, though the reasons are just some
minor details, not fundamental issues.  I didn't bother supporting it because last
time I did a major update the 64-bit backend wasn't ready yet and I needed to find
good linear congruential parameters for 64-bit.

You might also be pleasantly surprised when the new release (currently in beta)
comes out.  I've put a lot of optimization work into the garbage collector and
depending on the allocation size, it's between 25% and 200x faster than the 2.052
GC.  (See https://github.com/dsimcha/druntime/wiki/Druntime-GC-Optimization-Fork)