1  /* Straight-line strength reduction control flow variation.  */
       2  
       3  /* { dg-do compile } */
       4  /* { dg-options "-O3 -fdump-tree-optimized" } */
       5  
       6  int 
       7  f (int n, int c, int s)
       8  {
       9    int a, x1, x2, x3;
      10  
      11    x1 = x2 = x3 = c;
      12  
      13    if (n > 64)
      14      {
      15        a = 2 * s;
      16        x1 = c + a;
      17        a = 4 * s;
      18        x2 = c + a;
      19        a = 6 * s;
      20        x3 = c + a;
      21      }
      22  
      23    return x1 + x2 + x3;
      24  }
      25  
      26  /* { dg-final { scan-tree-dump-times " \\* " 1 "optimized" } } */