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/* { dg-do run } */

/* { dg-options "-mavx2 -O2" } */

/* { dg-require-effective-target avx2 } */

#include "avx2-check.h"

#include <string.h>

#define NUM 10

#define MASK 0xf1

static void

init_permq (unsigned long long *src1, int seed)

{

  int i, sign = 1;

  for (i = 0; i < 4; i++)

    {

      src1[i] = (i + seed) * (i + seed) * sign;

      sign = -sign;

    }

}

static void

calc_permq (unsigned long long *src1, unsigned int mask,

            unsigned long long *dst)

{

  int i, temp;

  for (i = 0; i < 4; i++)

    {

      temp = (mask >> (2 * i)) & 3;

      dst[i] = src1[temp];

    }

}

static void

avx2_test (void)

{

  union256i_q src1, dst;

  unsigned long long dst_ref[4];

  int i;

  for (i = 0; i < NUM; i++)

    {

      init_permq (src1.a, i);

      dst.x = _mm256_permute4x64_epi64 (src1.x, MASK);

      calc_permq (src1.a, MASK, dst_ref);

      if (check_union256i_q (dst, dst_ref))

        abort ();

    }

}