1  /* { dg-do compile } */
       2  /* { dg-options "-O -ffinite-math-only -fdump-tree-optimized" } */
       3  /* { dg-require-effective-target c99_runtime } */
       4  
       5  double test1 (double x)
       6  {
       7    double s, c;
       8    s = __builtin_sin (x);
       9    c = __builtin_cos (x);
      10    return s + c;
      11  }
      12  
      13  double test2 (double x)
      14  {
      15    double s, c;
      16    x = x * 2;
      17    s = __builtin_sin (x);
      18    c = __builtin_cos (x);
      19    return s + c;
      20  }
      21  
      22  double test3 (double x, int b)
      23  {
      24    double s, c;
      25    if (b)
      26      x = x * 2;
      27    s = __builtin_sin (x);
      28    c = __builtin_cos (x);
      29    return s + c;
      30  }
      31  
      32  double test4 (double x)
      33  {
      34    double s;
      35    x = x * 2;
      36    s = __builtin_sin (x);
      37    return s;
      38  }
      39  
      40  /* { dg-final { scan-tree-dump-times "cexpi" 3 "optimized" } } */