gcc/testsuite/gcc.target/i386/avx2-vpunpcklbw-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 #define N 0x5
   9
  10 static void
  11 compute_punpcklbw256 (char *s1, char *s2, char *r)
  12 {
  13   int i;
  14
  15   for (i = 0; i < 8; i++)
  16     {
  17       r[2 * i] = s1[i];
  18       r[2 * i + 1] = s2[i];
  19
  20       r[2 * i + 16] = s1[i + 16];
  21       r[2 * i + 16 + 1] = s2[i + 16];
  22     }
  23 }
  24
  25 void static
  26 avx2_test (void)
  27 {
  28   union256i_b s1, s2, res;
  29   char res_ref[32];
  30   int i, j;
  31   int fail = 0;
  32
  33   for (i = 0; i < 10; i++)
  34     {
  35       for (j = 0; j < 32; j++)
  36         {
  37           s1.a[j] = j * i;
  38           s2.a[j] = j + 20;
  39         }
  40
  41       res.x = _mm256_unpacklo_epi8 (s1.x, s2.x);
  42
  43       compute_punpcklbw256 (s1.a, s2.a, res_ref);
  44
  45       fail += check_union256i_b (res, res_ref);
  46     }
  47
  48   if (fail != 0)
  49     abort ();
  50 }