   0  getfield_gc_r %r0, FieldDescr<pypy.module.marshal.interp_marshal.Marshaller.inst_writer> -> %r1
   5  -live- %i0, %r1
   5  guard_class %r1 -> %i1
   8  getfield_raw_i %i1, FieldDescr<pypy.module.marshal.interp_marshal.AbstractReaderWriter_vtable.cls_write> -> %i1
  13  newstr $1 -> %r0
  16  strsetitem %r0, $0, %i0
  20  -live- %i1, %r0, %r1
  20  switch %i1, <SwitchDictDescr 0:L1, 1:L2, 2:L3>
  24  unreachable
  25  ---
  25  L1:
  25  -live- %r0, %r1
  25  getfield_gc_r %r1, FieldDescr<pypy.module.marshal.interp_marshal.FileWriter.inst_func> -> %r1
  30  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x0000000174027cc8> -> %r2
  34  setfield_gc_r %r2, %r0, FieldDescr<pypy.objspace.std.bytesobject.W_BytesObject.inst__value>
  39  inline_call_r_r <JitCode 'call_function__star_1'>, R[%r1, %r2] -> %r0
  46  -live-
  46  void_return
  47  ---
  47  L2:
  47  -live- %r0, %r1
  47  getfield_gc_r %r1, FieldDescr<pypy.module.marshal.interp_marshal.StreamReaderWriter.inst_file> -> %r1
  52  setfield_gc_i %r1, $0, FieldDescr<pypy.module._file.interp_file.W_File.inst_softspace>
  57  getfield_gc_r %r1, FieldDescr<pypy.module._file.interp_file.W_File.inst_stream> -> %r1
  62  -live- %r0, %r1
  62  goto_if_not_ptr_iszero %r1, L4
  66  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x000000018e6b98a0> -> %r0
  70  setfield_gc_r %r0, $<* struct rpy_string>, FieldDescr<pypy.interpreter.error.OpErrFmtNoArgs.inst__value>
  75  setfield_gc_r %r0, $<* struct pypy.interpreter.baseobjspace.W_Root>, FieldDescr<pypy.interpreter.error.OperationError.inst_w_type>
  80  assert_not_none %r0
  82  -live- %r0
  82  guard_class %r0 -> %i0
  85  -live- %r0
  85  raise %r0
  87  ---
  87  L4:
  87  -live- %r0, %r1
  87  guard_class %r1 -> %i0
  90  getfield_raw_i %i0, FieldDescr<rpython.rlib.streamio.Stream_vtable.cls_write> -> %i0
  95  -live- %i0, %r0, %r1
  95  int_guard_value %i0
  97  residual_call_r_v %i0, <IndirectCallTargets>, R[%r1, %r0], <CallDescr(rr) EF=7>
 104  -live-
 104  void_return
 105  ---
 105  L3:
 105  -live-
 105  raise $<* struct object>
