[llvm-dev] LLVM Releases: Upstream vs. Downstream / Distros

Bernhard Rosenkränzer via llvm-dev llvm-dev at lists.llvm.org
Thu May 12 08:27:23 PDT 2016

On 12 May 2016 at 16:56, Kristof Beyls <Kristof.Beyls at arm.com> wrote:

> In my opinion, it would be better overall for the LLVM project if
> top-of-trunk is
> tested as much as possible, if testing resources are so scarce that a
> choice
> has to be made between testing top-of-trunk or testing a release branch.

I agree that trunk is more important, with both of my hats on.

But releases are not completely irrelevant - one thing making them
important is the fact that there's other projects out there using the LLVM
libraries - and as a distro, we have to make sure they all work (so they
agree on the same API), preferably without having to ship multiple versions
of LLVM and preferably without having to patch external code too much to
adjust to API changes.

In OpenMandriva, we have to keep Mesa, creduce, emscripten and the
LLVMified Qt moc working (list expected to grow -- ultimately we'd also
like to use the system LLVM libraries for the swift compiler).
In AOSP, RenderScript relies on the LLVM API, but there's nothing else
using it, so there's currently no need to force a common version of the API
between different projects there.

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