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

   1 /* { dg-do run } */
   2 /* { dg-require-effective-target avx2 } */
   3 /* { dg-options "-O2 -mavx2" } */
   4
   5 #include "avx2-check.h"
   6
   7 void static
   8 avx2_test (void)
   9 {
  10   union256i_b u, s1, s2;
  11   unsigned char e[32];
  12   int tmp;
  13   int i;
  14
  15   s1.x = _mm256_set_epi8 (1, 2, 3, 4, 10, 20, 30, 90, -80, -40, -100,
  16                           -15, 98, 25, 98, 7, 88, 44, 33, 22, 11, 98,
  17                           76, -100, -34, -78, -39, 6, 3, 4, 5, 119);
  18
  19   s2.x = _mm256_set_epi8 (88, 44, 33, 22, 11, 98, 76, -100, -34, -78,
  20                           -39, 6, 3, 4, 5, 119, 1, 2, 3, 4, 10, 20,
  21                           30, 90, -80, -40, -100, -15, 98, 25, 98, 7);
  22
  23   u.x = _mm256_avg_epu8 (s1.x, s2.x);
  24
  25   for (i = 0; i < 32; i++)
  26     e[i] = ((unsigned char) s1.a[i] + (unsigned char) s2.a[i] + 1) >> 1;
  27
  28   if (check_union256i_b (u, e))
  29     abort ();
  30 }