sgminer error

[15:53:05] Startup GPU initialization... Using settings from pool litecoinpool.org.
[15:53:05] Startup Pool No = 0
[15:53:05] Building binary ckolivasAMD ARUBA (DRM 2.49.0 / 4.10.0-21-generic, LLVM 5.0.0)gw256l8lg2tc5632nf10.
binInvalid bitcast
                    %4465 = bitcast [4 x <4 x i32>] addrspace(4)* %10 to i8*
                                                                            Invalid bitcast
                                                                                             %4466 = bitcast <4 x i32> addrspace(4)* %6 to i8*
                                Invalid bitcast
                                                 %4467 = bitcast <4 x i32> addrspace(4)* %2 to i8*
                                                                                                  LLVM ERROR: Broken function found, compilation aborted!