   0  getfield_gc_r %r0, FieldDescr<pypy.objspace.std.formatting.StringFormatter.inst_fmt> -> %r1
   5  getfield_gc_i %r0, FieldDescr<pypy.objspace.std.formatting.BaseStringFormatter.inst_fmtpos> -> %i0
  10  int_sub %i0, $1 -> %i1
  14  -live- %i1, %r0, %r1
  14  goto_if_not_int_lt %i1, $0, L1
  19  strlen %r1 -> %i0
  22  int_add %i1, %i0 -> %i1
  26  L2:
  26  strgetitem %r1, %i1 -> %i0
  30  getfield_gc_i %r0, FieldDescr<pypy.objspace.std.formatting.BaseStringFormatter.inst_fmtpos> -> %i1
  35  int_sub %i1, $1 -> %i1
  39  newstr $1 -> %r1
  42  int_copy %i0 -> %i2
  45  strsetitem %r1, $0, %i0
  49  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x0000000174027cc8> -> %r0
  53  setfield_gc_r %r0, %r1, FieldDescr<pypy.objspace.std.bytesobject.W_BytesObject.inst__value>
  58  residual_call_ir_r $<* fn ll_int2hex__Signed_Bool>, I[%i2, $True], R[], <CallDescr(ii) EF=3> -> %r1
  67  -live- %i1, %r0, %r1
  67  inline_call_ir_r <JitCode 'oefmt__unsupported_format_character__R___s__at_index__d_star_3'>, I[%i1], R[$<* struct pypy.objspace.std.typeobject.W_TypeObject>, $<* struct rpy_string>, %r0, %r1] -> %r1
  78  -live- %r1
  78  assert_not_none %r1
  80  -live- %r1
  80  guard_class %r1 -> %i0
  83  -live- %r1
  83  raise %r1
  85  ---
  85  L1:
  85  goto L2
