Comment # 5 on bug 101594 from Jan Vesely

anything specific you wanted to highlight?
It does detect your GPU:
> I0910 10:21:04.851496 28885 opencl_util.cpp:741] Enumerating devices for platform Clover.
> I0910 10:21:04.851511 28885 opencl_util.cpp:802] Adding new device AMD Radeon (TM) R9 390 Series (HAWAII / DRM 3.18.0 / 4.13.0-lg+, LLVM 6.0.0).