1  /* { dg-do run } */
       2  /* { dg-skip-if "-mpowerpc-gpopt not supported" { powerpc*-*-darwin* } } */
       3  /* { dg-options "-O2 -ffast-math -fno-inline -fno-unroll-loops -lm -mpowerpc-gpopt" } */
       4  
       5  #include <math.h>
       6  
       7  extern void abort (void);
       8  
       9  #define NVALS 6
      10  
      11  static double
      12  convert_it_1 (double x)
      13  {
      14    return pow (x, 10.0 / 3.0);
      15  }
      16  
      17  static double
      18  convert_it_2 (double x)
      19  {
      20    return pow (x, 11.0 / 3.0);
      21  }
      22  
      23  static double
      24  convert_it_3 (double x)
      25  {
      26    return pow (x, -7.0 / 3.0);
      27  }
      28  
      29  static double
      30  convert_it_4 (double x)
      31  {
      32    return pow (x, -8.0 / 3.0);
      33  }
      34  
      35  int
      36  main (int argc, char *argv[])
      37  {
      38    double values[NVALS] = { 3.0, 1.95, 2.227, 4.0, 256.0, .0008797 };
      39    double PREC = .999999;
      40    unsigned i;
      41  
      42    for (i = 0; i < NVALS; i++)
      43      {
      44        volatile double x, y;
      45  
      46        x = __builtin_powi (values[i], 3);
      47        y = __builtin_powi (cbrt (values[i]), 1);
      48        if (fabs (convert_it_1 (values[i]) / (x * y)) < PREC)
      49  	abort ();
      50  
      51        x = __builtin_powi (values[i], 3);
      52        y = __builtin_powi (cbrt (values[i]), 2);
      53        if (fabs (convert_it_2 (values[i]) / (x * y)) < PREC)
      54  	abort ();
      55  
      56        x = __builtin_powi (values[i], -3);
      57        y = __builtin_powi (cbrt (values[i]), 2);
      58        if (fabs (convert_it_3 (values[i]) / (x * y)) < PREC)
      59  	abort ();
      60  
      61        x = __builtin_powi (values[i], -3);
      62        y = __builtin_powi (cbrt (values[i]), 1);
      63        if (fabs (convert_it_4 (values[i]) / (x * y)) < PREC)
      64  	abort ();
      65      }
      66  
      67    return 0;
      68  }