/* { dg-do run } */
/* { dg-require-effective-target avx } */
/* { dg-options "-O2 -ftree-vectorize -mavx -mtune=generic" } */

#include "avx-check.h"

#define N 16

float b[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45};
float c[N] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
float d[N] = {0,2,4,6,8,10,12,14,16,18,20,22,24,26,28,30};

static void
__attribute__ ((noinline))
avx_test ()
{
  int i;
  float a[N];

  /* Strided access. Vectorizable on platforms that support load of strided 
     accesses (extract of even/odd vector elements).  */
  for (i = 0; i < N/2; i++)
    {
      a[i] = b[2*i+1] * c[2*i+1] - b[2*i] * c[2*i];
      d[i] = b[2*i] * c[2*i+1] + b[2*i+1] * c[2*i];
    }

  /* Check results.  */
  for (i = 0; i < N/2; i++)
    {
      if (a[i] != b[2*i+1] * c[2*i+1] - b[2*i] * c[2*i]
	  || d[i] != b[2*i] * c[2*i+1] + b[2*i+1] * c[2*i])
	abort();
    }
}