   0  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x0000aaaaf9e07ad0> -> %r0
   4  inline_call_ir_r <JitCode 'allocate_and_init_instance'>, I[$False, $False, $False, $False], R[$<* struct pypy.interpreter.baseobjspace.W_Root>] -> %r1
  15  -live- %r0, %r1
  18  setfield_gc_r %r0, %r1, FieldDescr<pypy.interpreter.function.Function.inst_w_func_dict>
  23  ref_return %r0
