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/* { dg-do run } */
/* { dg-options "-mavx2 -O2" } */
/* { dg-require-effective-target avx2 } */
 
#include "avx2-check.h"
 
static void
compute_pmulhw256 (short *s1, short *s2, short *r)
{
  int i;
 
  for (i = 0; i < 16; i++)
    r[i] = (s1[i] * s2[i]) >> 16;
}
 
static void
avx2_test (void)
{
  union256i_w s1, s2, res;
  short res_ref[16];
  int i, j, sign = 1;
  int fail = 0;
 
  for (i = 0; i < 10; i++)
    {
      for (j = 0; j < 16; j++)
	{
	  s1.a[j] = i * j * sign;
	  s2.a[j] = (j + 20) * sign;
	  sign = -sign;
	}
 
      res.x = _mm256_mulhi_epi16 (s1.x, s2.x);
 
      compute_pmulhw256 (s1.a, s2.a, res_ref);
 
      fail += check_union256i_w (res, res_ref);
    }
 
  if (fail != 0)
    abort ();
}