1  /* { dg-do run } */
       2  /* { dg-require-effective-target avx2 } */
       3  /* { dg-options "-O2 -mavx2" } */
       4  
       5  #include <string.h>
       6  #include "avx2-check.h"
       7  
       8  #define N 0xec
       9  
      10  static void
      11  compute_pshufhw256 (short *s1, unsigned char imm, short *r)
      12  {
      13    int i;
      14  
      15    for (i = 0; i < 4; i++)
      16      {
      17        r[i] = s1[i];
      18        r[i + 8] = s1[i + 8];
      19      }
      20  
      21    for (i = 4; i < 8; i++)
      22      {
      23        r[i] = s1[((imm >> (2 * (i - 4))) & 3) + 4];
      24        r[i + 8] = s1[((imm >> (2 * (i - 4))) & 3) + 12];
      25      }
      26  }
      27  
      28  void static
      29  avx2_test (void)
      30  {
      31    union256i_w s1, res;
      32    short res_ref[16];
      33    int i, j, sign = 1;
      34    int fail = 0;
      35  
      36    for (i = 1; i < 10; i++)
      37      {
      38        for (j = 0; j < 16; j++)
      39  	{
      40  	  s1.a[j] = j * i * sign;
      41  	  sign = -sign;
      42  	}
      43  
      44        res.x = _mm256_shufflehi_epi16 (s1.x, N);
      45        compute_pshufhw256 (s1.a, N, res_ref);
      46  
      47        fail += check_union256i_w (res, res_ref);
      48      }
      49  
      50    if (fail != 0)
      51      abort ();
      52  }