gcc/testsuite/gcc.target/i386/avx2-vextracti128-2.c

   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 void static
   9 avx2_test (void)
  10 {
  11   union256i_q s1;
  12   union128i_q res;
  13   long long int res_ref[2];
  14   int j;
  15
  16   for (j = 0; j < 4; j++)
  17     s1.a[j] = j * j;
  18
  19   res.x = _mm256_extracti128_si256 (s1.x, 0);
  20
  21   memset (res_ref, 0, 16);
  22   memcpy (res_ref, s1.a, 16);
  23
  24   if (check_union128i_q (res, res_ref))
  25     abort ();
  26
  27   res.x = _mm256_extracti128_si256 (s1.x, 1);
  28
  29   memset (res_ref, 0, 16);
  30   memcpy (res_ref, s1.a + 2, 16);
  31
  32   if (check_union128i_q (res, res_ref))
  33     abort ();
  34 }