   0  newstr %i1 -> %r0
   3  residual_call_ir_v $<* fn copy_raw_to_string>, I[%i0, $0, %i1], R[%r0], <CallDescr(irii) EF=5>
  13  -live- %r0
  13  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x000002aac5501f30> -> %r1
  17  setfield_gc_r %r1, %r0, FieldDescr<pypy.objspace.std.bytesobject.W_BytesObject.inst__value>
  22  ref_return %r1
