[llvm-dev] MLIR landing in the monorepo

[Mehdi AMINI via llvm-dev]

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"
-DLLVM_EXTERNAL_PROJECTS=mlir -DLLVM_EXTERNAL_MLIR_SOURCE_DIR={path to
repo}/mlir/

We'll hook into -DLLVM_ENABLE_PROJECTS after landing.

Let me know if you have any comment about this!

Cheers,

-- 
Mehdi
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