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

   1 /* { dg-do run } */
   2 /* { dg-options "-mavx512f -O2" } */
   3 /* { dg-require-effective-target avx512f } */
   4
   5 #define SIZE (128 / 32)
   6
   7 #include <math.h>
   8 #include "avx512f-check.h"
   9 #include "avx512f-helper.h"
  10
  11 static void
  12 compute_vgetexpss (float *s, float *r)
  13 {
  14   r[0] = floor (log (s[0]) / log (2));
  15 }
  16
  17 void static
  18 avx512f_test (void)
  19 {
  20   int i;
  21   union128 res1, s1;
  22   float res_ref[SIZE];
  23
  24   for (i = 0; i < SIZE; i++)
  25     {
  26       s1.a[i] = 5.0 - i;
  27       res_ref[i] = s1.a[i];
  28     }
  29
  30   res1.x = _mm_getexp_ss (s1.x, s1.x);
  31
  32   compute_vgetexpss (s1.a, res_ref);
  33
  34   if (check_fp_union128 (res1, res_ref))
  35     abort ();
  36 }