Re: [meta-oe][PATCH] llvm: update 3.5.2 to have a sane ARM JIT for OpenJDK-8

[Philip Balister <philip@balister.org>]

On 10/27/2015 01:21 PM, Jens Rehsack wrote:
> 
>> Am 27.10.2015 um 21:15 schrieb Otavio Salvador <otavio.salvador@ossystems.com.br>:
>>
>> On Tue, Oct 27, 2015 at 6:04 PM, Jens Rehsack <rehsack@gmail.com> wrote:
>>>
>>> llvm introduced new JIT technology MCJIT with llvm 3.4 and fixes ARM in 3.5
>>> (see http://llvm.org/releases/3.5.2/docs/ReleaseNotes.html#changes-to-the-arm-backend).
>>>
>>> Ensure JIT is built with llvm
>>>
>>> Signed-off-by: Jens Rehsack <sno@netbsd.org>
>>
>> There is a patch to add LLVM 3.7[1]; I think this one can be dropped.
>>
>> 1. http://patchwork.openembedded.org/patch/106281/
> 
> I'v seen this and I guarantee that OpenJDK-8 will fail heavily with llvm3.7 - the guys
> put an end to an antiquated API's with each release, and OpenJDK's zeroshark uses lot's
> of them.

We'll need the 3.7 series llvm to support llvmpipe in newer mesa. The
mesa update will happen after the release and I want to be ready.

As Martin notes, we are setup to support multiple llvm versions and it
looks like we need to.

Philip

> 
> Cheers
>