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/* { dg-do run } */

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

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

#include <string.h>

#include "avx2-check.h"

static void

compute_i64gatherps (float *s1, long long *s2, int scale, float *r)

{

  int i;

  for (i = 0; i < 2; ++i)

    r[i] = *(float *) (((unsigned char *) s1) + s2[i] * scale);

}

void static

avx2_test (void)

{

  int i;

  union128i_q idx;

  union128 res;

  float s1[2], res_ref[4] = { 0 };

  for (i = 0; i < 2; ++i)

    {

      /* Set some stuff */

      s1[i] = 2.718281828459045 * (i + 1) * (i + 2);

      /* About to gather in reverse order,

         divide by 2 to demonstrate scale */

      idx.a[i] = (8 - (i + 1) * 4) >> 1;

    }

  res.x = _mm_i64gather_ps (s1, idx.x, 2);

  compute_i64gatherps (s1, idx.a, 2, res_ref);

  if (check_union128 (res, res_ref) != 0)

    abort ();

}