gcc/testsuite/gcc.target/i386/avx2-vpsrawi-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_psrawi256 (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
  23 void static
  24 avx2_test (void)
  25 {
  26   union256i_w s1, res;
  27   short res_ref[16];
  28   int i, j;
  29   int fail = 0;
  30
  31   for (i = 0; i < 10; i++)
  32     {
  33       for (j = 0; j < 16; j++)
  34         s1.a[j] = j * i;
  35
  36       res.x = _mm256_srai_epi16 (s1.x, N);
  37
  38       compute_psrawi256 (s1.a, res_ref);
  39
  40       fail += check_union256i_w (res, res_ref);
  41     }
  42
  43   if (fail != 0)
  44     abort ();
  45 }