1  /* { dg-do compile { target c99_runtime } } */
       2  /* { dg-options "-O" } */
       3  
       4  #include <complex.h>
       5  
       6  int main()
       7  {
       8    _Complex double x;
       9    __real x = 3.091e+8;
      10    __imag x = -4.045e+8;
      11    /* This used to spend huge amounts of compile-time inside mpc.  */
      12    volatile _Complex double y = ctan (x);
      13    return 0;
      14  }