https://bugs.freedesktop.org/show_bug.cgi?id=104190
--- Comment #1 from Kristian Nyborg Dahl krdahl@gmail.com --- This was kisak-valve's comment on their github:
"Hello @Heis, on my AMD test box, mesa 17.2.6 built against llvm 5.0.0 is affected, while llvm 4.0.1 is not affected.
This should also be brought to the attention of your driver vendor if it has not been already."