1  /* PR middle-end/84309 */
       2  /* { dg-do compile } */
       3  /* { dg-options "-Ofast -fdump-tree-optimized" } */
       4  
       5  double
       6  foo (double x)
       7  {
       8    return __builtin_pow (2.0, x);
       9  }
      10  
      11  /* { dg-final { scan-tree-dump "__builtin_exp2 " "optimized" { target *-*-linux* *-*-gnu* } } } */