   0  -live- %i0
   3  goto_if_not_int_is_true %i0, L1
   7  new_array_clear $2, <rpython.jit.backend.llsupport.descr.ArrayDescr object at 0x0000aaab9f570790> -> %r1
  12  setarrayitem_gc_r %r1, $0, $<* struct rpy_string>, <rpython.jit.backend.llsupport.descr.ArrayDescr object at 0x0000aaab9f570790>
  18  residual_call_ir_r $<* fn ll_int2hex__Unsigned_Bool>, I[%i0, $False], R[], <CallDescr(ii) EF=3> -> %r0
  27  -live- %r0, %r1
  30  setarrayitem_gc_r %r1, $1, %r0, <rpython.jit.backend.llsupport.descr.ArrayDescr object at 0x0000aaab9f570790>
  36  int_isconstant $2 -> %i0
  39  -live- %i0, %r1
  42  goto_if_not %i0, L2
  46  ref_isvirtual %r1 -> %i0
  49  -live- %i0, %r1
  52  goto_if_not %i0, L3
  56  L4:
  56  inline_call_ir_r <JitCode 'll_join_strs__v1135___simple_call__function_'>, I[$2], R[%r1] -> %r0
  64  -live- %r0
  67  ref_return %r0
  69  ---
  69  L3:
  69  goto L4
  72  ---
  72  L2:
  72  residual_call_ir_r $<* fn ll_join_strs_trampoline__v1137___simple_call__function_>, I[$2], R[%r1], <CallDescr(ir) EF=5> -> %r0
  81  -live- %r0
  84  ref_return %r0
  86  ---
  86  L1:
  86  ref_return $<* struct rpy_string>
