1  /* { dg-do compile } */
       2  /* { dg-options "-Ofast -fdump-tree-optimized" } */
       3  /* { dg-additional-options "-fcompare-debug" { target { ! powerpc-ibm-aix* } } } */
       4  
       5  double
       6  foo (double a)
       7  {
       8    double tmp = 1.0f / __builtin_sqrt (a);
       9    return tmp * tmp;
      10  }
      11  
      12  /* { dg-final { scan-tree-dump-not "__builtin_sqrt" "optimized" } } */