[LLVMdev] Using LLVM to convert a language to another language

[Villmow, Micah]

Probably the easiest way is to take the C backend and modify it to handle the special OpenCL constructs that you generate.

> -----Original Message-----
> From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu]
> On Behalf Of krys at polarlights.net
> Sent: Tuesday, March 08, 2011 12:48 PM
> To: llvmdev at cs.uiuc.edu
> Subject: [LLVMdev] Using LLVM to convert a language to another language
> 
> Hi,
> 
> Sorry for my newbies questions... but here it is...
> 
> My goal is to have a "shading language", it is very similar to the "C"
> language but with special tokens.
> 
> I have a parser and a lexer done with Lex/bison, once I have
> lexed/parsed my "shading language" I must create 3 new "source code" in
> OpenCL.
> 
> It mean that by example for the following :
> 
> shader matte(float Kd, color c)
> {
>   Ci = diffuse(Kd * c);
> }
> 
> I have to create 3 methods in OpenCL, by example
> 
> 1 - matte_sampling
> 2 - matte_pdf
> 3 - matte_f
> 
> Each of theses method is in OpenCL (It is like C too).
> 
> So, I would like to use LLVM to create an optimized version of my
> shader code. But once I have the LLVM byte code... how can I parse it
> "easily" to create my shader code ?
> 
> NB: also, you can tell me if it is really a good idea !
> 
> Thanks
> 
> 
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