   0  new_array_clear $1, <rpython.jit.backend.llsupport.descr.ArrayDescr object at 0x1009b08cc50> -> %r1
   5  inline_call_r_r <JitCode 'll_str__InstanceR_pypy_interpreter_bas_pypy_interpreter_baseobjspace_W_RootPtr'>, R[%r0] -> %r0
  11  -live- %r0, %r1
  11  setarrayitem_gc_r %r1, $0, %r0, <rpython.jit.backend.llsupport.descr.ArrayDescr object at 0x1009b08cc50>
  17  ref_isvirtual %r1 -> %i0
  20  -live- %i0, %r1
  20  goto_if_not %i0, L1
  24  L2:
  24  inline_call_ir_r <JitCode 'll_join_strs__v1178___simple_call__function_'>, I[$1], R[%r1] -> %r1
  32  -live- %r1
  32  L3:
  32  -live- %r1
  32  goto_if_not_ptr_iszero %r1, L4
  36  ref_return $<* struct pypy.interpreter.baseobjspace.W_Root>
  38  ---
  38  L4:
  38  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x10096124f10> -> %r0
  42  setfield_gc_r %r0, %r1, FieldDescr<pypy.objspace.std.bytesobject.W_BytesObject.inst__value>
  47  ref_return %r0
  49  ---
  49  L1:
  49  int_isconstant $1 -> %i0
  52  -live- %i0, %r1
  52  goto_if_not %i0, L5
  56  goto L2
  59  ---
  59  L5:
  59  residual_call_ir_r $<* fn ll_join_strs_trampoline__v1181___simple_call__function_>, I[$1], R[%r1], <CallDescr(ir) EF=5> -> %r1
  68  -live- %r1
  68  goto L3
