1  /* PR tree-optimization/107879 */
       2  
       3  __attribute__((noipa)) static double
       4  foo (double *y)
       5  {
       6    volatile int ph = 0;
       7    volatile double vf = 1.0;
       8    double factor = vf;
       9    double x = - (double) ph * factor;
      10    if (x == 0)
      11      *y = 1.0;
      12    else
      13      *y = 1.0 / x;
      14    double w = 2.0 * x / factor;
      15    double omww = 1 - w;
      16    return omww > 0.0 ? omww : 0.0;
      17  }
      18  
      19  int
      20  main ()
      21  {
      22    double y = 42.0;
      23    if (foo (&y) != 1.0)
      24      __builtin_abort ();
      25  }