gcc/testsuite/gcc.target/i386/avx2-vpabsd256-2.c

   1 /* { dg-do run } */
   2 /* { dg-require-effective-target avx2 } */
   3 /* { dg-options "-O2 -mavx2" } */
   4
   5 #include "ssse3-vals.h"
   6 #include "avx2-check.h"
   7
   8 /* Routine to manually compute the results */
   9 static void
  10 compute_pabs256 (int *i1, int *r)
  11 {
  12   int i;
  13
  14   for (i = 0; i < 8; i++)
  15     if (i1[i] < 0)
  16       r[i] = -i1[i];
  17     else
  18       r[i] = i1[i];
  19 }
  20
  21 static void
  22 avx2_test (void)
  23 {
  24   int i;
  25   int ck[8];
  26   int fail = 0;
  27
  28   union256i_d s, d;
  29
  30   for (i = 0; i < 256; ++i)
  31     {
  32       /* Recompute the results for 256-bits */
  33       compute_pabs256 (&vals[i], ck);
  34
  35       s.x = _mm256_loadu_si256 ((__m256i *) & vals[i]);
  36
  37       /* Run the 256-bit tests */
  38       d.x = _mm256_abs_epi32 (s.x);
  39
  40       fail += check_union256i_d (d, ck);
  41     }
  42
  43   if (fail != 0)
  44     abort ();
  45 }