C++ (Cpp) operator_is_linear Exemples

Exemple #1

Fichier : tree-chrec.c Projet : AhmadTux/DragonFlyBSD

bool
scev_is_linear_expression (tree scev)
{
  if (scev == NULL
      || !operator_is_linear (scev))
    return false;

  if (TREE_CODE (scev) == MULT_EXPR)
    return !(tree_contains_chrecs (TREE_OPERAND (scev, 0), NULL)
	     && tree_contains_chrecs (TREE_OPERAND (scev, 1), NULL));

  switch (TREE_CODE_LENGTH (TREE_CODE (scev)))
    {
    case 3:
      return scev_is_linear_expression (TREE_OPERAND (scev, 0))
	&& scev_is_linear_expression (TREE_OPERAND (scev, 1))
	&& scev_is_linear_expression (TREE_OPERAND (scev, 2));

    case 2:
      return scev_is_linear_expression (TREE_OPERAND (scev, 0))
	&& scev_is_linear_expression (TREE_OPERAND (scev, 1));
      
    case 1:
      return scev_is_linear_expression (TREE_OPERAND (scev, 0));

    case 0:
      return true;

    default:
      return false;
    }
}

Exemple #2

Fichier : tree-chrec.c Projet : hemantjain95/gcc

bool
scev_is_linear_expression (tree scev)
{
  if (scev == NULL
      || !operator_is_linear (scev))
    return false;

  if (TREE_CODE (scev) == MULT_EXPR)
    return !(tree_contains_chrecs (TREE_OPERAND (scev, 0), NULL)
	     && tree_contains_chrecs (TREE_OPERAND (scev, 1), NULL));

  if (TREE_CODE (scev) == POLYNOMIAL_CHREC
      && !evolution_function_is_affine_multivariate_p (scev, CHREC_VARIABLE (scev)))
    return false;

  switch (TREE_CODE_LENGTH (TREE_CODE (scev)))
    {
    case 3:
      return scev_is_linear_expression (TREE_OPERAND (scev, 0))
	&& scev_is_linear_expression (TREE_OPERAND (scev, 1))
	&& scev_is_linear_expression (TREE_OPERAND (scev, 2));

    case 2:
      return scev_is_linear_expression (TREE_OPERAND (scev, 0))
	&& scev_is_linear_expression (TREE_OPERAND (scev, 1));

    case 1:
      return scev_is_linear_expression (TREE_OPERAND (scev, 0));

    case 0:
      return true;

    default:
      return false;
    }
}