[LLVMdev] JVM Backend

[David Roberts]

> If you apply that as a patch now, everyone else will have to maintain
> it when they do their unrelated changes, increasing the cost of the
> project's maintenance. I welcome your code (have been wondering about
> it recently too), but I think that you should keep it as a separate
> project for now. Once it's at least complete, I'm sure people will be
> happy to apply as a patch, but for now it'll be more nuisance than
> help.
I hope I didn't give the impression that I was pushing to get this
commited - I'm quite happy to keep it as a separate project.

I've cleaned up the code a bit and released it as part of LLJVM[1], so
any fixes to the problems people have highlighted in this thread will
be pushed to the repository listed on that page as I get to them.

[1] http://da.vidr.cc/projects/lljvm/

--
David Roberts
http://da.vidr.cc/



On Mon, Nov 30, 2009 at 19:39, Renato Golin <rengolin at systemcall.org> wrote:
> 2009/11/30 David Roberts <d at vidr.cc>:
>>> Nobody is asking for perfection, just completeness.
>> I'd just like to point out that I don't have a great deal of
>> experience in compiler development - I just thought that this would be
>> an interesting project to try. I realise that it isn't complete in
>> it's current state.
>
> Hi David and Jon,
>
> After reading this thread, I think there has been a slight misunderstanding.
>
> I agree with Jon that there are some crucial problems with your patch
> re odd size variables and tail calls (possibly many other issues that
> were overlooked), but I also agree with David that, as this is an
> experiment, it's not perfect, nor complete.
>
> If you apply that as a patch now, everyone else will have to maintain
> it when they do their unrelated changes, increasing the cost of the
> project's maintenance. I welcome your code (have been wondering about
> it recently too), but I think that you should keep it as a separate
> project for now. Once it's at least complete, I'm sure people will be
> happy to apply as a patch, but for now it'll be more nuisance than
> help.
>
> Just to give you some figures, I've written a very simple compiler
> using LLVM with less than 10 classes using mostly the IR codegen, some
> function passes and the JIT. It was common for me to have to update my
> own code twice in the same day for changes in the internal libraries.
> I was happy to do so, but I believe that if I ever merged my code to
> mainstream, every single one of them would have to change my code as
> well before committing.
>
> Once it's complete, check in. Once it's perfect, get a Nobel prize. ;)
>
> My tuppence...
>
> cheers,
> --renato
>
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