   0  getfield_gc_i %r0, FieldDescr<rpython.rlib.rsre.rsre_core.AbstractMatchContext.inst_match_start> -> %i1
   5  -live- %i0, %i1, %r0, %r1
   8  int_guard_value %i0
  10  -live- %i0, %i1, %r0, %r1
  13  ref_guard_value %r1
  15  recursive_call_i $99, I[%i0], R[%r1], F[], I[%i1], R[%r0], F[] -> %i0
  28  -live- %i0
  31  int_return %i0
