1  /* x2 and x3 will be strength-reduced based on the same statement
       2     but with different variables as the stride.  Note that they will
       3     be strength-reduced by introducing an initializer 4*s which is
       4     cheaper than 5*s; similar for 4*c and 5*c.  */
       5  
       6  /* { dg-do compile } */
       7  /* { dg-options "-O3 -fdump-tree-optimized" } */
       8  
       9  int
      10  f (int s, int c)
      11  {
      12    int a2, a3, x1, x2, x3, x;
      13  
      14    x1 = c + s;
      15    a2 = 5 * s;
      16    x2 = c + a2;
      17    a3 = 5 * c;
      18    x3 = s + a3;
      19    x = x1 + x2 + x3;
      20    return x;
      21  }
      22  
      23  /* { dg-final { scan-tree-dump-times " \\* 4" 2 "optimized" } } */
      24  /* { dg-final { scan-tree-dump-times " \\* 5" 0 "optimized" } } */