gcc/testsuite/gcc.target/i386/avx2-vpackssdw-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 short
   8 int_to_short (int iVal)
   9 {
  10   short sVal;
  11
  12   if (iVal < -32768)
  13     sVal = -32768;
  14   else if (iVal > 32767)
  15     sVal = 32767;
  16   else
  17     sVal = iVal;
  18
  19   return sVal;
  20 }
  21
  22 void static
  23 avx2_test (void)
  24 {
  25   union256i_d s1, s2;
  26   union256i_w u;
  27   short e[16];
  28   int i;
  29
  30   s1.x = _mm256_set_epi32 (1, 2, 3, 4, 65000, 20, 30, 90);
  31
  32   s2.x = _mm256_set_epi32 (88, 44, 33, 22, 11, 98, 76, -65000);
  33
  34   u.x = _mm256_packs_epi32 (s1.x, s2.x);
  35
  36   for (i = 0; i < 4; i++)
  37     {
  38       e[i] = int_to_short (s1.a[i]);
  39       e[i + 4] = int_to_short (s2.a[i]);
  40       e[i + 8] = int_to_short (s1.a[i + 4]);
  41       e[i + 12] = int_to_short (s2.a[i + 4]);
  42     }
  43
  44   if (check_union256i_w (u, e))
  45     abort ();
  46 }