   0  inline_call_r_i <JitCode '_calcsize'>, R[%r0] -> %i0
   6  -live- %i0
   6  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x100951d1e10> -> %r0
  10  setfield_gc_i %r0, %i0, FieldDescr<pypy.objspace.std.intobject.W_IntObject.inst_intval>
  15  ref_return %r0
