<分区>
check_union256d 函数是什么？
它被放置在下面的代码中:
/* { dg-do run } */
/* { dg-require-effective-target avx } */
/* { dg-options "-O2 -mavx" } */
#include "avx-check.h"
void static
avx_test (void)
{
int i;
union256d u, s1, s2;
double e [4];
s1.x = _mm256_set_pd (2134.3343,1234.635654,453.345635,54646.464356);
s2.x = _mm256_set_pd (41124.234,2344.2354,8653.65635,856.43576);
u.x = _mm256_div_pd (s1.x, s2.x);
for (i = 0; i < 4; i++)
e[i] = s1.a[i] / s2.a[i];
if (check_union256d (u, e))
abort ();
}