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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
 
static void
init_permps (float *src1, float *src2, int seed)
{
  int i, sign = 1;
 
  for (i = 0; i < 8; i++)
    {
      src1[i] = (i + seed) * (i + seed) * sign;
      src2[i] = (i + seed + 20) * sign;
      sign = -sign;
    }
}
 
static void
calc_permps (float *src1, float *src2, float *dst)
{
  int i;
  unsigned temp;
  unsigned *idx = (int *) src1;
 
  memcpy (dst, src1, 32);
  for (i = 0; i < 8; i++)
    {
      temp = idx[i];
      dst[i] = src2[temp & 7];
    }
}
 
static void
avx2_test (void)
{
  union256 src1, src2, dst;
  float dst_ref[8];
  int i;
 
  for (i = 0; i < NUM; i++)
    {
      init_permps (src1.a, src2.a, i);
 
      dst.x = _mm256_permutevar8x32_ps (src1.x, src2.x);
      calc_permps (src1.a, src2.a, dst_ref);
 
      if (check_union256 (dst, dst_ref))
	abort ();
    }
}