llvm dev - Oct 2015 - Memory allocated for JIT compiled code

Hi,

I am looking for ways to reduce the memory consumption in my JIT
compiler that uses LLVM. In my implementation a compiled function
lives in its own module. After compiling the function/module I would
like to be able to discard any memory associated with the module but
retain the compiled code. How can I do this?

I am currently using MCJIT but if the new ORC API supports this then I
will be happy to migrate to it.

Thanks and Regards

Dibyendu

Hi Dibyendu,

I'd recommend trying ORC out - it gives you a lot more flexibility in your
memory management, and aggressively frees memory by default.

If you haven't used ORC before I'd check out the tutorials under
llvm/examples/Kaleidoscope/Orc. The basic JIT in the 'initial' tutorial
should be all you need to replace MCJIT in most cases.

Cheers,
Lang.


On Fri, Oct 16, 2015 at 6:02 PM, Dibyendu Majumdar via llvm-dev <
llvm-dev at lists.llvm.org> wrote:
> Hi,
>
> I am looking for ways to reduce the memory consumption in my JIT
> compiler that uses LLVM. In my implementation a compiled function
> lives in its own module. After compiling the function/module I would
> like to be able to discard any memory associated with the module but
> retain the compiled code. How can I do this?
>
> I am currently using MCJIT but if the new ORC API supports this then I
> will be happy to migrate to it.
>
> Thanks and Regards
>
> Dibyendu
> _______________________________________________
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org
> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>
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