Comment # 7 on bug 99136 from Samuel Pitoiset

Okay, it's obvious now, thanks!

Can't be reproduced with latest Mesa/LLVM git after few minutes of test with
different graphics parameters.

Could be similar to https://bugs.freedesktop.org/show_bug.cgi?id=98743 (which
has been fixed between LLVM 3.9 and LLVM 4.0).

Please re-open if you still have the issue with next Mesa/LLVM.