RX 580 should have OpenCL 2.0 support.
GPU Caps main tab says I have 1.2 version.
GPU Caps OpenCL tab says I have 2.1 version.
When I try OpenCL demo from Demos tab my PC crashes, referring to some file which starts with amdk and also something something "kernel".
Blender software crashing PC too sometimes or gives errors referring to kernel.