[llvm-dev] [Incubation] Request to incubate mlir-npcomp

[Nicolai Hähnle via llvm-dev]

On Tue, Jun 23, 2020 at 2:40 PM Stella Laurenzo via llvm-dev
<llvm-dev at lists.llvm.org> wrote:
> We originally started it as a fork of the LLVM repository, but transitioned to the MLIR standalone template, and we found it more productive to iterate out of tree in this fashion, bumping to the latest LLVM version every week or so as needed (note: the ability to exist out of tree for MLIR dependent projects is actually quite good, and the more of us who do it, the better it becomes).

How do you deal with the problem of using the "right" LLVM version? As
somebody who spends a significant amount of time on a project that is
open-source but out-of-tree -- and for good reasons that mean we're
unlikely to want to incubate in this fashion -- I find this to be a
major problem.

If the goal of incubation is to eventually become part of the
llvm-project monorepo, I feel that being inside the monorepo should be
a goal early on. This would make your project more inclusive, as
others will automatically have the right LLVM version -- they don't
have to follow some syncing mechanism that you may have tooling for
inside of Google but which isn't available outside. You can always
"bump to the latest LLVM version every week or so" by doing a merge
commit.

Cheers,
Nicolai


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