llvm dev - Jan 2017 - Unstable XRay test on ARM

I don't object to backporting the fix. But I think the FDR itself is not in
4.0 yet. Let Dean suggest how risky FDR may be: I see substantial code
changes, but for the old code they seem to be mostly moving.

Dean, if you're on vacation, I can submit the compare_exchange_strong() fix.

Cheers,
Serge


On 27 January 2017 at 19:52, Renato Golin <renato.golin at linaro.org>
wrote:
> On 26 January 2017 at 22:18, Dean Michael Berris via llvm-dev
> <llvm-dev at lists.llvm.org> wrote:
> > Yeah, I was being optimistic about this one. It should be changed to
> strong
> > if he weak version doesn't quite do it.
> >
> > The other way to do this is to change the test to do the polling, but
> that
> > seems sub-optimal.
>
> I agree.
>
> Do you guys think we can get that backported in 4.0?
>
> cheers,
> --renato
>
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On 27 January 2017 at 17:04, Serge Rogatch <serge.rogatch at gmail.com>
wrote:
> I don't object to backporting the fix. But I think the FDR itself is
not in
> 4.0 yet. Let Dean suggest how risky FDR may be: I see substantial code
> changes, but for the old code they seem to be mostly moving.
Oh, so, don't worry. I just thought that this had gone in and the fix
was necessary. If not, than let's keep it in trunk.

cheers,
--renato

FYI, we got it again...

http://lab.llvm.org:8011/builders/clang-cmake-aarch64-42vma/builds/3875

So it wasn't a one of.

cheers,
--renato