[Bug tree-optimization/32553] missed optimization to eliminate duplicate expressions

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=32553

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Reassociation is not done:
  _3 = p_14(D) + _2;
  _17 = g ();
  *_3 = _17;
  _5 = _2 + 8;
  _6 = p_14(D) + _5;
  _20 = g ();
  *_6 = _20;
  _8 = _2 + 40;
  _9 = p_14(D) + _8;
  _23 = g ();
  *_9 = _23;
  _11 = _2 + 400;
  _12 = p_14(D) + _11;
  _26 = g ();
  *_12 = _26;