   0  getfield_gc_i %r0, FieldDescr<pypy.module.array.interp_array.W_ArrayBase.inst_len> -> %i0
   5  -live- %i0, %r0
   8  goto_if_not_int_is_zero %i0, L1
  12  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x000002aa8c4dd168> -> %r0
  16  setfield_gc_r %r0, $<* struct rpy_string>, FieldDescr<pypy.objspace.std.bytesobject.W_BytesObject.inst__value>
  21  ref_return %r0
  23  ---
  23  L1:
  23  getfield_gc_i %r0, FieldDescr<pypy.module.array.interp_array.W_ArrayBase.inst__buffer> -> %i1
  28  -live- %i0, %i1, %r0
  31  guard_class %r0 -> %i2
  34  getfield_raw_i %i2, FieldDescr<pypy.interpreter.baseobjspace.W_Root_vtable.cls_itemsize> -> %i2
  39  int_mul %i0, %i2 -> %i0
  43  newstr %i0 -> %r1
  46  residual_call_ir_v $<* fn copy_raw_to_string>, I[%i1, $0, %i0], R[%r1], <CallDescr(irii) EF=5>
  56  -live- %r0, %r1
  59  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x000002aa8c4dd168> -> %r0
  63  setfield_gc_r %r0, %r1, FieldDescr<pypy.objspace.std.bytesobject.W_BytesObject.inst__value>
  68  ref_return %r0
