From: Charles Oliver Nutter <charles.nutter@...>
Date: 2009-03-06T09:17:31+09:00
Subject: Re: Compiling a Ruby app

David Masover wrote:
> It's worth mentioning that these are not mutually exclusive.
> 
> For example, the LLVM seems to be capable of doing all of the above, to 
> some extent. They describe it as compile-time, link-time, run-time, and 
> idle-time optimizations.
> 
> I really see no reason you couldn't have a language like Ruby in which 
> the obvious stuff is pre-optimized beyond recognition, and the more 
> dynamic stuff is optimized at runtime. In fact, I suspect we'd get most 
> of this for free, if Rubinius ever finishes that LLVM port I keep 
> hearing about.

LLVM does no dynamic optimization at runtime; it only does static 
optimizations.

The most interesting LLVM project to me is one that uses LLVM as a 
backend for the Hotspot JVM (OpenJDK), allowing Hotspot's dynamic 
optimizations to couple with LLVM's static ones.

http://icedtea.classpath.org/wiki/ZeroSharkFaq

- Charlie