Author of the project here. I'll be glad to answer any questions about new GC or Scala Native in general.

Could scala native be used to compile scalac in the future (if enough of java.* has a clean room implementation)? And could that speed up compile time of scala programs, or is compilation bottlenecked by IO (or other things) which may not be enhanced by scala native?

1. Probably, but we're not quite there yet. Some required APIs are still missing.

2. We'll find out soon enough.

Thanks for the answer. I'm looking forward to it. Now I wish scala.js would also be able to compile the compiler. Would be a nice benchmark for the language runtimes since the compiler is a non trivial program.

The presentation slides about the new gc can be found here: https://github.com/densh/talks/raw/ebb8f1f4b54bdc6d1a55b962d...