1/* { dg-do run } */
2/* { dg-require-effective-target avx } */
3/* { dg-options "-O2 -ftree-vectorize -mavx -mtune=generic" } */
4
5#include "avx-check.h"
6
7#define N 16
8
9float b[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45};
10float c[N] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
11float d[N] = {0,2,4,6,8,10,12,14,16,18,20,22,24,26,28,30};
12
13static void
14__attribute__ ((noinline))
15avx_test ()
16{
17  int i;
18  float a[N];
19
20  /* Strided access. Vectorizable on platforms that support load of strided
21     accesses (extract of even/odd vector elements).  */
22  for (i = 0; i < N/2; i++)
23    {
24      a[i] = b[2*i+1] * c[2*i+1] - b[2*i] * c[2*i];
25      d[i] = b[2*i] * c[2*i+1] + b[2*i+1] * c[2*i];
26    }
27
28  /* Check results.  */
29  for (i = 0; i < N/2; i++)
30    {
31      if (a[i] != b[2*i+1] * c[2*i+1] - b[2*i] * c[2*i]
32	  || d[i] != b[2*i] * c[2*i+1] + b[2*i+1] * c[2*i])
33	abort();
34    }
35}
36