[LLVMdev] Guidance regarding a dummy project

[John Criswell]

Dear Pratik,

What I think you will want to do is to create a new assembler and a new 
code generator for your architecture.  This, I suspect, means that 
you'll need to understand how to describe your architecture's 
instruction set using TableGen, how to create an assembler using the MC 
interface, and how to build a code generator.

My best suggestion is to start looking at the documentation "Writing an 
LLVM Backend" and "The LLVM Target-Dependent Code Generator" at 
http://llvm.org/docs.  The "Tablegen" document may also help.  The links 
for these documents are at:

http://llvm.org/docs/WritingAnLLVMBackend.html
http://llvm.org/docs/CodeGenerator.html
http://llvm.org/docs/TableGen/index.html

As I have not written a new code generator from scratch myself, that's 
about all the help I can offer.  I suggest reading these documents (if 
you have not already) and then write the list with more specific 
questions as needed.

Good luck,

John Criswell


On 6/4/14, 3:37 AM, pratik dand wrote:
> Dear,
>
> I am looking to build a compiler-assembler with a custom architecture.
> I have a new Instruction set defined with me and I would like atleast 
> my C programs to get converted to assembly language corresponding to 
> the custom architecture.
>
> I have been going through llvm and its resources on the web, Can any 
> one of you offer guidance about the above problem.
>
> All I want is to develop a tool which can take in a custom 
> architecture and assemble all programs corresponding to the architecture.
>
> Regards,
> Pratik
>
>
>
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