1  /* Related to PR optimization/10764  */
       2  
       3  /* { dg-do compile } */
       4  /* { dg-options "-O2 -ffast-math" } */
       5  
       6  double atan(double x);
       7  
       8  double foo(double x)
       9  {
      10    return atan(atan(x));
      11  }
      12