   0  -live- %r0
   0  goto_if_not_ptr_iszero %r0, L1
   4  L2:
   4  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x7fff47af5a00> -> %r0
   8  setfield_gc_i %r0, $42, FieldDescr<pypy.objspace.std.intobject.W_IntObject.inst_intval>
  13  ref_return %r0
  15  ---
  15  L1:
  15  inline_call_r_i <JitCode 'W_Root.is_w'>, R[$<* struct pypy.interpreter.baseobjspace.W_Root>, %r0] -> %i0
  22  -live- %i0
  22  -live- %i0
  22  goto_if_not %i0, L3
  26  goto L2
  29  ---
  29  L3:
  29  raise $<* struct object>
