   0  inline_call_r_i <JitCode 'c_int_w'>, R[%r1] -> %i0
   6  -live- %i0, %r0
   9  inline_call_ir_r <JitCode 'fchmod'>, I[%i0], R[%r0] -> %r0
  17  -live-
  20  ref_return $<* struct pypy.interpreter.baseobjspace.W_Root>
