   0  residual_call_r_i $<* fn stack_almost_full>, R[], <CallDescr() EF=2> -> %i0
   6  -live- %i0
   6  goto_if_not %i0, L1
  10  ref_return $<* struct pypy.interpreter.baseobjspace.W_Root>
  12  ---
  12  L1:
  12  ref_return $<* struct pypy.interpreter.baseobjspace.W_Root>
