C++ (Cpp) _mm_add_round_ss Exemples

Exemple #1

Fichier : avx512f-vaddss-2.c Projet : MaxKellermann/gcc

void
avx512f_test (void)
{
  int i, sign;
  union128 res1, res2, res3, res4, res5, src1, src2;
  MASK_TYPE mask = MASK_VALUE;
  float res_ref[SIZE];

  sign = -1;
  for (i = 0; i < SIZE; i++)
    {
      src1.a[i] = 1.5 + 34.67 * i * sign;
      src2.a[i] = -22.17 * i * sign + 1.0;
      sign = sign * -1;
    }
  for (i = 0; i < SIZE; i++)
    {
      res1.a[i] = DEFAULT_VALUE;
      res4.a[i] = DEFAULT_VALUE;
    }

  res1.x = _mm_mask_add_ss (res1.x, mask, src1.x, src2.x);
  res2.x = _mm_maskz_add_ss (mask, src1.x, src2.x);
  res3.x = _mm_add_round_ss (src1.x, src2.x, _MM_FROUND_NO_EXC);
  res4.x = _mm_mask_add_round_ss (res4.x, mask, src1.x, src2.x, _MM_FROUND_NO_EXC);
  res5.x = _mm_maskz_add_round_ss (mask, src1.x, src2.x, _MM_FROUND_NO_EXC);

  calc_add (res_ref, src1.a, src2.a);

  MASK_MERGE () (res_ref, mask, 1);
  if (check_union128 (res1, res_ref))
    abort ();

  MASK_ZERO () (res_ref, mask, 1);
  if (check_union128 (res2, res_ref))
    abort ();

  calc_add (res_ref, src1.a, src2.a);

  if (check_union128 (res3, res_ref))
    abort();
  
  MASK_MERGE () (res_ref, mask, 1);
  if (check_union128 (res4, res_ref))
    abort ();

  MASK_ZERO () (res_ref, mask, 1);
  if (check_union128 (res5, res_ref))
    abort ();
}

Exemple #2

Fichier : avx512f-vaddss-1.c Projet : roblim1/gcc

void extern
avx512f_test (void)
{
  x1 = _mm_add_round_ss (x1, x2, _MM_FROUND_TO_NEAREST_INT);
}