   0  -live- %r1
   0  goto_if_not_ptr_nonzero %r1, L1
   4  ref_copy %r1 -> %r0
   7  -live- %r0, %r1
   7  guard_class %r1 -> %i0
  10  -live- %i0, %r0
  10  goto_if_not_int_eq %i0, $<* struct object_vtable>, L2
  15  getfield_gc_r %r0, FieldDescr<pypy.interpreter.pytraceback.PyTraceback.inst_frame> -> %r1
  20  -live- %r0, %r1
  20  getfield_vable_r %r1, FieldDescr<pypy.interpreter.pyframe.PyFrame.inst_pycode> -> %r1
  25  getfield_gc_i %r0, FieldDescr<pypy.interpreter.pytraceback.PyTraceback.inst_lasti> -> %i0
  30  residual_call_ir_i $<* fn offset2lineno>, I[%i0], R[%r1], <CallDescr(ri) EF=4> -> %i0
  39  -live- %i0
  39  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x100951d1e10> -> %r0
  43  setfield_gc_i %r0, %i0, FieldDescr<pypy.objspace.std.intobject.W_IntObject.inst_intval>
  48  ref_return %r0
  50  ---
  50  L2:
  50  raise $<* struct object>
  52  ---
  52  L1:
  52  raise $<* struct object>
