On Monday 11 May 2009 09:05:08 Dmitry Bely wrote:
> I think it would be the major code rewrite (if ever possible). Merging
> SSE2 from amd64 into i386 code generator took about a day of my
> efforts. How much time LLVM integration would require? If it is that
> simple can you provide a proof-of-the-concept implementation?

Well, I can provide a complete garbage collected VM. :-)

  http://hlvm.forge.ocamlcore.org/

The hard part of writing an LLVM backend for ocamlopt is probably getting LLVM 
to generate code that is compatible with OCaml's GC, particularly the stack. 
However, I believe Gordon Henriksen already did this:

  "Included in the pending LLVM garbage collection code generation  
changeset is an Ocaml frametable emitter." -
  http://lists.cs.uiuc.edu/pipermail/llvmdev/2007-November/011527.html

Unfortunately, I will not have any spare time until my next book is out...

Did any of the OCaml+LLVM student projects get funded in the end?

-- 
Dr Jon Harrop, Flying Frog Consultancy Ltd.
http://www.ffconsultancy.com/?e