   0  getfield_gc_f_pure %r0, FieldDescr<pypy.module.micronumpy.boxes.W_Float16Box.inst_value> -> %f0
   5  float_sub %f0, %f0 -> %f0
   9  -live- %f0
   9  goto_if_not_float_eq %f0, $0.0, L1
  14  ref_return $<* struct tuple2>
  16  ---
  16  L1:
  16  ref_return $<* struct tuple2>
