[Bug tree-optimization/59817] ICE in extract_affine_chrec with -O2 -ftree-loop-linear

[asolokha at gmx dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59817

--- Comment #3 from Arseny Solokha <asolokha at gmx dot com> ---
void
xl(void)
{
  static int j3;
  for (j3 = 0; j3 < 1; ++j3) {
    static int f2;
    static int w7;
    short int b5;
    int ok;
    f2 = (b5 += ok) ? (w7 = 0): (w7 ? 0 : (f2 = ok));
  }
}

4.7.3 doesn't fail, so this is surely a regression.