gcc/testsuite/gcc.target/i386/avx2-vpsrldq-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_psrldq256 (char *s1, char *r)
  12 {
  13   int i;
  14
  15   memset (r, 0, 32);
  16
  17   for (i = 0; i < 16 - N; i++)
  18     r[i] = s1[i + N];
  19
  20   for (i = 0; i < 16 - N; i++)
  21     r[i + 16] = s1[i + N + 16];
  22 }
  23
  24
  25 void static
  26 avx2_test (void)
  27 {
  28   union256i_b s1, 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         s1.a[j] = j * i;
  37
  38       res.x = _mm256_srli_si256 (s1.x, N);
  39
  40       compute_psrldq256 (s1.a, res_ref);
  41
  42       fail += check_union256i_b (res, res_ref);
  43     }
  44
  45   if (fail != 0)
  46     abort ();
  47 }