message: add explicit cast for half
diff: @@ -114,6 +114,6 @@ __kernel void clip(const int nthreads,
  for (int index = get_global_id(0); index < nthreads; index += get_global_size(0))
  {
  Dtype4 vec = vload4(index, dst);
  - vstore4(clamp(vec, 0.0f, 1.0f), index, dst);
  + vstore4(clamp(vec, (Dtype)0.0f, (Dtype)1.0f), index, dst);
  }
  }
  