[Bug tree-optimization/107888] [12/13/14 Regression] Missed min/max transformation in phiopt due to VRP

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107888

--- Comment #9 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
By the way this does show up in GCC itself.
in worse_state in ipa-pure-const.cc where it does MAX of bools

and for x86's internal_min_issue_delay in insn-automata.cc
The below is the similar code to what is there:
unsigned f(unsigned temp1, unsigned temp2)
{
  unsigned temp, res;
  temp = temp1 & 3;
  res = temp;

  temp = temp2 & 1;
  if (temp > res)
    res = temp;
  return res;
}