1  /* { dg-do compile } */
       2  /* { dg-options "-O2 -funswitch-loops -fno-thread-jumps -fdump-tree-unswitch-optimized" } */
       3  
       4  int
       5  foo(double *a, double *b, double *c, double *d, double *r, int size, unsigned order)
       6  {
       7    for (int i = 0; i < size; i++)
       8    {
       9      double tmp;
      10  
      11      switch (order)
      12        {
      13        case 0 ... 4:
      14  	tmp = -8 * a[i];
      15  	break;
      16        default:
      17  	tmp = -4 * b[i];
      18  	break;
      19        }
      20  
      21      double x = 3 * tmp + d[i] + tmp;
      22  
      23      /* This and the case 0 ... 4 condition should only be unswitched once
      24         since they are mutually excluded.  */
      25      if (order >= 5)
      26        x += 2;
      27  
      28      double y = 3.4f * tmp + d[i];
      29      r[i] = x + y;
      30    }
      31  
      32    return 0;
      33  }
      34  
      35  /* { dg-final { scan-tree-dump-times "unswitching loop . on .\[^\n\r\]*. with condition" 1 "unswitch" } } */