   0  getfield_gc_r %r0, FieldDescr<rpython.rtyper.lltypesystem.rffi.scoped_nonmoving_unicodebuffer.inst_data> -> %r1
   5  residual_call_r_r $<* fn get_nonmovingbuffer>, R[%r1], <CallDescr(r) EF=5> -> %r1
  12  -live- %r0, %r1
  12  getfield_gc_i_pure %r1, FieldDescr<tuple2.item0> -> %i0
  17  getfield_gc_i_pure %r1, FieldDescr<tuple2.item1> -> %i1
  22  setfield_gc_i %r0, %i0, FieldDescr<rpython.rtyper.lltypesystem.rffi.scoped_nonmoving_unicodebuffer.inst_buf>
  27  setfield_gc_i %r0, %i1, FieldDescr<rpython.rtyper.lltypesystem.rffi.scoped_nonmoving_unicodebuffer.inst_flag>
  32  int_return %i0
