   0  inline_call_r_i <JitCode 'unpack'>, R[%r1] -> %i1
   6  -live- %i0, %i1
   6  int_signext %i1, $1 -> %i1
  10  -live- %i0, %i1
  10  goto_if_not %i0, L1
  14  L2:
  14  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x00000100a39cd248> -> %r0
  18  setfield_gc_i %r0, %i1, FieldDescr<pypy.module.micronumpy.boxes.W_Int8Box.inst_value>
  23  ref_return %r0
  25  ---
  25  L1:
  25  int_signext %i1, $1 -> %i1
  29  goto L2
