gcc/testsuite/gcc.target/i386/avx512f-vgetexpsd-2.c

   1 /* { dg-do run } */
   2 /* { dg-options "-mavx512f -O2" } */
   3 /* { dg-require-effective-target avx512f } */
   4
   5 #define SIZE (128 / 64)
   6
   7 #include <math.h>
   8 #include "avx512f-check.h"
   9
  10 static void
  11 compute_vgetexpsd (double *s, double *r)
  12 {
  13   r[0] = floor (log (s[0]) / log (2));
  14 }
  15
  16 void static
  17 avx512f_test (void)
  18 {
  19   int i;
  20   union128d res1, s1;
  21   double res_ref[SIZE];
  22
  23   for (i = 0; i < SIZE; i++)
  24     {
  25       s1.a[i] = 5.0 - i;
  26       res_ref[i] = s1.a[i];
  27     }
  28
  29   res1.x = _mm_getexp_sd (s1.x, s1.x);
  30
  31   compute_vgetexpsd (s1.a, res_ref);
  32
  33   if (check_fp_union128d (res1, res_ref))
  34     abort ();
  35 }