   0  residual_call_r_r $<* fn make_plain_ffi_object>, R[%r0], <CallDescr(r) EF=7> -> %r0
   7  -live- %r0
   7  -live- %r0
   7  goto_if_not_ptr_iszero %r0, L1
  11  ref_return $<* struct pypy.interpreter.baseobjspace.W_Root>
  13  ---
  13  L1:
  13  ref_return %r0
