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

   1 /* { dg-do run } */
   2 /* { dg-require-effective-target avx2 } */
   3 /* { dg-options "-O3 -mavx2" } */
   4
   5 #include <string.h>
   6 #include "avx2-check.h"
   7
   8 #define N 0x5
   9
  10 static void
  11 compute_psrlwi256 (short *s1, short *r)
  12 {
  13   int i;
  14
  15   memset (r, 0, 32);
  16
  17   if (N < 16)
  18     for (i = 0; i < 16; ++i)
  19       r[i] = s1[i] >> N;
  20 }
  21
  22 void static
  23 avx2_test (void)
  24 {
  25   union256i_w s1, res;
  26   short res_ref[16];
  27   int i, j;
  28   int fail = 0;
  29
  30   for (i = 0; i < 10; i++)
  31     {
  32       for (j = 0; j < 16; j++)
  33         s1.a[j] = j * i;
  34
  35       res.x = _mm256_srli_epi16 (s1.x, N);
  36
  37       compute_psrlwi256 (s1.a, res_ref);
  38
  39       fail += check_union256i_w (res, res_ref);
  40     }
  41
  42   if (fail != 0)
  43     abort ();
  44 }