[LLVMdev] Out of source backend

[Rafael Auler]

I've done this for my research project. I designed a backend to be a
loadable module for LLVM 3.3, so, in that way, I would end up with a
repository that only has the backend code, nice and neat. When building my
project, my Makefile would create a shared library that llc is able to load
and install a new backend at runtime.

But honestly, I regret doing this. I don't see the point anymore of
creating a separate project to an out-of-tree backend. I think the best
design (and simplest) is to fork the LLVM project in your private
repository and develop your backend from there, rebasing when convenient.

On Wed, Nov 26, 2014 at 5:26 AM, Zoltan Bokor <zoligeotop at gmail.com> wrote:

> Hello,
>
>   I am in a developing process for a new llvm backend (target). Can I
> create the new target subdirectory out of source. My point is that I want
> to create a separate svn repo only for my new backend directory and use the
> llvm project as an external repository. I have to amke some changes to llvm
> project, to integrate my backend to the llvm, but I won't commit my changes
> to the llvm repo. I only want to commit the changes to my separate backend
> svn repo, but I want to update the llvm external repo. This design should
> be like a llvm read only (but updatable) repo, and a commitable, separate
> backend repo.
> Is this design feasible ?
>
> Regards,
> Zoli
>
>
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