gcc/testsuite/gcc.target/i386/avx2-vpsllw-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 static void
   9 compute_psllw256 (short *s1, long long int *s2, short *r)
  10 {
  11   int i;
  12   int count = s2[0];
  13
  14   memset (r, 0, 32);
  15
  16   if (count < 16)
  17     for (i = 0; i < 16; ++i)
  18       r[i] = s1[i] << count;
  19 }
  20
  21 void static
  22 avx2_test (void)
  23 {
  24   union256i_w s1, res;
  25   union128i_q s2;
  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       s2.a[0] = i;
  36
  37       res.x = _mm256_sll_epi16 (s1.x, s2.x);
  38
  39       compute_psllw256 (s1.a, s2.a, res_ref);
  40
  41       fail += check_union256i_w (res, res_ref);
  42
  43       if (fail)
  44         {
  45           for (j = 0; j < 16; ++j)
  46             printf ("%d <->%d\n", res.a[j], res_ref[j]);
  47           abort ();
  48         }
  49     }
  50
  51   if (fail != 0)
  52     abort ();
  53 }