   0  getfield_gc_r %r0, FieldDescr<pypy.module._file.interp_file.W_File.inst_stream> -> %r2
   5  -live- %r0, %r1, %r2
   8  goto_if_not_ptr_iszero %r2, L1
  12  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x00005609330fe8a8> -> %r0
  16  setfield_gc_r %r0, $<* struct rpy_string>, FieldDescr<pypy.interpreter.error.OpErrFmtNoArgs.inst__value>
  21  setfield_gc_r %r0, $<* struct pypy.interpreter.baseobjspace.W_Root>, FieldDescr<pypy.interpreter.error.OperationError.inst_w_type>
  26  assert_not_none %r0
  28  -live- %r0
  31  raise %r0
  33  ---
  33  L1:
  33  getfield_gc_i %r0, FieldDescr<pypy.module._file.interp_file.W_File.inst_writable> -> %i0
  38  -live- %i0, %r1, %r2
  41  goto_if_not %i0, L2
  45  -live- %r1, %r2
  48  goto_if_not_ptr_iszero %r1, L3
  52  L4:
  52  -live- %r2
  55  guard_class %r2 -> %i0
  58  getfield_raw_i %i0, FieldDescr<rpython.rlib.streamio.Stream_vtable.cls_tell> -> %i0
  63  -live- %i0, %r2
  66  int_guard_value %i0
  68  residual_call_r_i %i0, <IndirectCallTargets>, R[%r2], <CallDescr(r) EF=7> -> %i1
  75  L5:
  75  -live- %i1, %r2
  78  guard_class %r2 -> %i0
  81  getfield_raw_i %i0, FieldDescr<rpython.rlib.streamio.Stream_vtable.cls_truncate> -> %i0
  86  -live- %i0, %i1, %r2
  89  int_guard_value %i0
  91  residual_call_ir_v %i0, <IndirectCallTargets>, I[%i1], R[%r2], <CallDescr(ri) EF=7>
  99  -live-
 102  void_return
 103  ---
 103  L3:
 103  inline_call_r_i <JitCode 'W_Root.is_w'>, R[$<* struct pypy.interpreter.baseobjspace.W_Root>, %r1] -> %i0
 110  -live- %i0, %r1, %r2
 113  goto_if_not %i0, L6
 117  goto L4
 120  ---
 120  L6:
 120  inline_call_ir_i <JitCode 'r_longlong_w'>, I[$True], R[%r1] -> %i1
 128  -live- %i1, %r2
 131  goto L5
 134  ---
 134  L2:
 134  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x00005609330fe8a8> -> %r0
 138  setfield_gc_r %r0, $<* struct rpy_string>, FieldDescr<pypy.interpreter.error.OpErrFmtNoArgs.inst__value>
 143  setfield_gc_r %r0, $<* struct pypy.interpreter.baseobjspace.W_Root>, FieldDescr<pypy.interpreter.error.OperationError.inst_w_type>
 148  assert_not_none %r0
 150  -live- %r0
 153  raise %r0
