unable to launch blender

[phanos-engineer]

While running Blender, I get the following error when going to the OpenCL settings in preferences.

LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr1 = V_CNDMASK_B32_e32 32768, killed $vgpr2, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
radeonsi: can't compile a main shader part
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
radeonsi: can't compile a main shader part
Writing: /tmp/blender.crash.txt
Segmentation fault (core dumped)