[llvm-dev] MLIR landing in the monorepo

Mehdi AMINI via llvm-dev llvm-dev at lists.llvm.org
Fri Nov 15 11:14:53 PST 2019

On Fri, Nov 15, 2019 at 10:58 AM Fāng-ruì Sòng <maskray at google.com> wrote:

> Since you are going to rewrite the mlir history anyway, you can
> probably delete accidentally checked in large files if any.

Good point, I checked and this is the largest file in the history of the
repo as far as I can tell:

> * I don't know whether the file CONTRIBUTING.md is still appropriate,
> at least for the Code of Conduct, LLVM has its own version.
> * g3doc/ seems a very Google specific name. Does `docs/` work?
> * bindings/python/pybind.cpp - does it have to be an in-tree plugin?
> * The Apache 2 license headers are verbose. LLVM uses
> SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception.

Absolutely! All of these points (except the python bindings) are on my TODO
list of things to do at the time of the merge. At the moment there is just
a script continuously performing the merge in my test repository so this is
an exact view of the current state of the public repo.
I could also try to rewrite the license in the header in all the history of
the repository, but I'm not sure it won't be brittle in practice, I was
planning to do an update to all the files before pushing.

I'll send the final version of the repo next month, I can CC you if you'd
like to review this before we push it?

For the python bindings, these are intended to provide some equivalent
facility to the LLVM python bindings:
; while they need some work at the moment, I think we will want to have
bindings though.


> On Fri, Nov 15, 2019 at 2:03 AM Mehdi AMINI via llvm-dev
> <llvm-dev at lists.llvm.org> wrote:
> >
> > Hi,
> >
> > (bcc: mlir at tensorflow.org FYI)
> >
> > I am following-up on the integration of MLIR in LLVM as a subproject
> (Re: http://lists.llvm.org/pipermail/llvm-dev/2019-October/135687.html ).
> >
> > We're aiming to integrate into the monorepo next month. Right now our
> intent is for MLIR to live in a top-level directory in parallel to clang,
> lldb, lld, etc.
> > Our top option for the integration is to perform a git subtree merge to
> bring the MLIR history into the monorepo, here is a prototype:
> https://github.com/joker-eph/llvm-project-with-mlir
> >
> > If you're curious to try it, at the moment it needs a specific CMake
> invocation:
> >
> > cmake -G Ninja ../llvm/ -DLLVM_TARGETS_TO_BUILD="host"
> repo}/mlir/
> >
> > We'll hook into -DLLVM_ENABLE_PROJECTS after landing.
> >
> > Let me know if you have any comment about this!
> >
> > Cheers,
> >
> > --
> > Mehdi
> >
> > _______________________________________________
> > LLVM Developers mailing list
> > llvm-dev at lists.llvm.org
> > https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
> --
> 宋方睿
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