   0  getfield_gc_i %r0, FieldDescr<pypy.module._io.interp_fileio.W_FileIO.inst_fd> -> %i0
   5  -live- %i0, %r0
   5  goto_if_not_int_lt %i0, $0, L1
  10  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x7fff4f52efa0> -> %r0
  14  setfield_gc_r %r0, $<* struct rpy_string>, FieldDescr<pypy.objspace.std.bytesobject.W_BytesObject.inst__value>
  19  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x7fff5988b640> -> %r1
  23  setfield_gc_r %r1, $<* struct pypy.interpreter.baseobjspace.W_Root>, FieldDescr<pypy.interpreter.error.OperationError.inst_w_type>
  28  setfield_gc_r %r1, %r0, FieldDescr<pypy.interpreter.error.OperationError.inst__w_value>
  33  setfield_gc_r %r1, $<* struct pypy.interpreter.baseobjspace.W_Root>, FieldDescr<pypy.interpreter.error.OperationError.inst__application_traceback>
  38  assert_not_none %r1
  40  -live- %r1
  40  guard_class %r1 -> %i0
  43  -live- %r1
  43  raise %r1
  45  ---
  45  L1:
  45  getfield_gc_i %r0, FieldDescr<pypy.module._io.interp_fileio.W_FileIO.inst_readable> -> %i0
  50  -live- %i0
  50  goto_if_not %i0, L2
  54  ref_return $<* struct pypy.interpreter.baseobjspace.W_Root>
  56  ---
  56  L2:
  56  ref_return $<* struct pypy.interpreter.baseobjspace.W_Root>
