   0  inline_call_r_r <JitCode 'force'>, R[%r0] -> %r0
   6  -live- %r0, %r1
   6  inline_call_r_i <JitCode '_type_isinstance'>, R[%r0, %r1] -> %i0
  13  -live- %i0
  13  -live- %i0
  13  goto_if_not %i0, L1
  17  ref_return $<* struct pypy.interpreter.baseobjspace.W_Root>
  19  ---
  19  L1:
  19  ref_return $<* struct pypy.interpreter.baseobjspace.W_Root>
