[LLVMdev] Can I port LLVM as a source-to-source compiler?

Jean-Daniel Dupas devlists at shadowlab.org
Tue Jan 19 06:49:25 PST 2010

Le 19 janv. 2010 à 15:06, Kenneth Uildriks a écrit :

> On Mon, Jan 18, 2010 at 9:58 PM, Junchao Zhang <junchao.zhang at gmail.com> wrote:
>> Hello,
>> I am working in a project on a parallel programming language. I want to base
>> our language on Java or C/C++. But Java is preferred.
>> Many similar projects adopts a source-to-source methodology, e.g., Berkeley
>> UPC(using Open64), Titanium, and Rice University's Co-array Fortran. They
>> output C code with calls to the runtime.  I think there are at least three
>> reasons: 1) using C as the output, it gets more portability. 2) leverage the
>> front ends of existing compilers. 3) leverage optimizations in existing
>> compilers.
>> I wonder if LLVM is suitable for this kind of work. Can LLVM experienced
>> users give me some hints on this topic?
>> Thanks in advance.
>> Junchao Zhang
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> LLVM can be made to output (horribly gnarly and non-portable) C code.
> However, I haven't tried it and I'm not sure what state that
> functionality is in.

Not very well supported I think:


LLVM 2.6 Release Notes

“The C Backend (-march=c) is no longer considered part of the LLVM release criteria. We still want it to work, but no one is maintaining it and it lacks support for arbitrary precision integers and other important IR features.”

-- Jean-Daniel

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