gcc/testsuite/gcc.target/powerpc/pr46728-14.c

   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, 1.5);
  15 }
  16
  17 static double
  18 convert_it_2 (double x)
  19 {
  20   return pow (x, 2.5);
  21 }
  22
  23 static double
  24 convert_it_3 (double x)
  25 {
  26   return pow (x, -0.5);
  27 }
  28
  29 static double
  30 convert_it_4 (double x)
  31 {
  32   return pow (x, 10.5);
  33 }
  34
  35 static double
  36 convert_it_5 (double x)
  37 {
  38   return pow (x, -3.5);
  39 }
  40
  41 int
  42 main (int argc, char *argv[])
  43 {
  44   double values[NVALS] = { 3.0, 1.95, 2.227, 4.0, 256.0, .0008797 };
  45   double PREC = .999999;
  46   unsigned i;
  47
  48   for (i = 0; i < NVALS; i++)
  49     {
  50       volatile double x, y;
  51
  52       x = sqrt (values[i]);
  53       y = __builtin_powi (values[i], 1);
  54       if (fabs (convert_it_1 (values[i]) / (x * y)) < PREC)
  55         abort ();
  56
  57       x = sqrt (values[i]);
  58       y = __builtin_powi (values[i], 2);
  59       if (fabs (convert_it_2 (values[i]) / (x * y)) < PREC)
  60         abort ();
  61
  62       x = sqrt (values[i]);
  63       y = __builtin_powi (values[i], -1);
  64       if (fabs (convert_it_3 (values[i]) / (x * y)) < PREC)
  65         abort ();
  66
  67       x = sqrt (values[i]);
  68       y = __builtin_powi (values[i], 10);
  69       if (fabs (convert_it_4 (values[i]) / (x * y)) < PREC)
  70         abort ();
  71
  72       x = sqrt (values[i]);
  73       y = __builtin_powi (values[i], -4);
  74       if (fabs (convert_it_5 (values[i]) / (x * y)) < PREC)
  75         abort ();
  76     }
  77
  78   return 0;
  79 }