Re: Requirements for Just-in-time Compilation

Thanks to all for your responses. They were very helpful.


Ralph Corderoy <ralph@inputplus.demon.co.uk> wrote:
> Yes, an external assembler pass would be too slow. Is anyone using the
> New Jersey Machine-Code Toolkit as part of a JIT or dynarec?
> http://www.eecs.harvard.edu/~nr/toolkit/


I really knew it would be too slow, I just wanted to make sure, since I don't
really want to write an assembler. I am aware of the NJ-MC-TK, but I'm
thinking about trying GNU Lightning first(www.gnu.org/software/lightning).


>> It seems to me that supporting multiple architectures would require making
>> extra passes, and would slow things down.
> Why extra passes? A different backend would be used per architecture,
> no?


I'm thinking extra passes since I would need to have an architecture
independent intermediate representation, like RTL. I couldn't use something
like the single pass compiler that is the first example in the dragon book.


Thanks again to all


-jlp

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