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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 20

static void

init_pblendb (char *src1, char *src2, char *mask, int seed)

{

  int i, sign = 1;

  for (i = 0; i < 32; i++)

    {

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

      src2[i] = (i + seed + 20) * sign;

      sign = -sign;

      if (sign > 0)

        mask[i] = 1 << 7;

      else

        mask[i] = 0;

    }

}

static void

calc_pblendb (char *src1, char *src2, char *mask, char *dst)

{

  int i;

  memcpy (dst, src1, 32);

  for (i = 0; i < 32; i++)

    if (mask[i] & (1 << 7))

      dst[i] = src2[i];

}

static void

avx2_test (void)

{

  union256i_b src1, src2, mask, dst;

  char dst_ref[32];

  int i;

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

    {

      init_pblendb (src1.a, src2.a, mask.a, i);

      dst.x = _mm256_blendv_epi8 (src1.x, src2.x, mask.x);

      calc_pblendb (src1.a, src2.a, mask.a, dst_ref);

      if (check_union256i_b (dst, dst_ref))

        abort ();

    }

}