   0  -live- %r0, %r1, %r2
   0  goto_if_not_ptr_nonzero %r0, L1
   4  ref_copy %r0 -> %r3
   7  -live- %r0, %r1, %r2, %r3
   7  guard_class %r3 -> %i0
  10  getfield_raw_i %i0, FieldDescr<object_vtable.subclassrange_min> -> %i0
  15  int_between $TotalOrderSymbolic('compute_fn'), %i0, $TotalOrderSymbolic('compute_fn') -> %i0
  20  -live- %i0, %r0, %r1, %r2
  20  goto_if_not %i0, L2
  24  residual_call_r_r $<* fn W_WeakrefBase.dereference>, R[%r0], <CallDescr(r) EF=2> -> %r0
  31  -live- %r0, %r1, %r2
  31  goto_if_not_ptr_iszero %r0, L3
  35  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x000002aabbb1b8a0> -> %r3
  39  setfield_gc_r %r3, $<* struct rpy_string>, FieldDescr<pypy.interpreter.error.OpErrFmtNoArgs.inst__value>
  44  setfield_gc_r %r3, $<* struct pypy.interpreter.baseobjspace.W_Root>, FieldDescr<pypy.interpreter.error.OperationError.inst_w_type>
  49  assert_not_none %r3
  51  -live- %r3
  51  guard_class %r3 -> %i0
  54  -live- %r3
  54  raise %r3
  56  ---
  56  L3:
  56  L4:
  56  inline_call_r_r <JitCode 'getslice'>, R[%r0, %r1, %r2] -> %r3
  64  -live- %r3
  64  ref_return %r3
  66  ---
  66  L2:
  66  goto L4
  69  ---
  69  L1:
  69  goto L4
