embedded-5_0-branch/gcc/testsuite/gcc.target/i386/avx2-vpmulhuw-2.c

   1 /* { dg-do run } */
   2 /* { dg-options "-mavx2 -O2" } */
   3 /* { dg-require-effective-target avx2 } */
   4
   5 #include "avx2-check.h"
   6
   7 static void
   8 compute_pmulhuw256 (unsigned short *s1, unsigned short *s2, unsigned short *r)
   9 {
  10   int i;
  11
  12   for (i = 0; i < 16; i++)
  13     r[i] = (s1[i] * s2[i]) >> 16;
  14 }
  15
  16 static void
  17 avx2_test (void)
  18 {
  19   union256i_w s1, s2, res;
  20   unsigned short res_ref[16];
  21   int i, j;
  22   int fail = 0;
  23
  24   for (i = 0; i < 10; i++)
  25     {
  26       for (j = 0; j < 16; j++)
  27         {
  28           s1.a[j] = i * j;
  29           s2.a[j] = j + 20;
  30         }
  31
  32       res.x = _mm256_mulhi_epu16 (s1.x, s2.x);
  33
  34       compute_pmulhuw256 (s1.a, s2.a, res_ref);
  35
  36       fail += check_union256i_w (res, res_ref);
  37     }
  38
  39   if (fail != 0)
  40     abort ();
  41 }