1  /* { dg-do compile } */
       2  /* { dg-options "-O1 -fschedule-insns2 -fsched2-use-superblocks" } */
       3  /* { dg-require-effective-target scheduling } */
       4  
       5  extern double f (double x);
       6  
       7  double g (int a)
       8  {
       9    int b, c, d, e = 0;
      10    double h;
      11  
      12    for (d = 0; d < a; d++)
      13      for (c = 0; c < a; c++)
      14        b = 1;
      15  
      16    h = (double) e / (double) a;
      17  
      18    if (h)
      19      {
      20        h = 1.0 / h;
      21        h = f (h);
      22      }
      23    else
      24      h = 1.0;
      25  
      26    return h;
      27  }