[Bug tree-optimization/124589] Missed optimization for std::ranges::contains

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124589

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
  if (_3 != __first_7)
    goto <bb 3>; [94.50%]
  else
    goto <bb 5>; [5.50%]

  <bb 5> [local count: 114863531]:
  # __first_11 = PHI <__first_7(4), __first_10(3)>
  _8 = _3 != __first_11;


I think I saw this before ...