C++ (Cpp) add_elt_to_treeの例

コード例 #1

ファイル: tree-affine.c プロジェクト: MaddTheSane/haiku-buildtools

tree
aff_combination_to_tree (aff_tree *comb)
{
  tree type = comb->type;
  tree expr = NULL_TREE;
  unsigned i;
  double_int off, sgn;
  tree type1 = type;
  if (POINTER_TYPE_P (type))
    type1 = sizetype;

  gcc_assert (comb->n == MAX_AFF_ELTS || comb->rest == NULL_TREE);

  for (i = 0; i < comb->n; i++)
    expr = add_elt_to_tree (expr, type, comb->elts[i].val, comb->elts[i].coef,
			    comb);

  if (comb->rest)
    expr = add_elt_to_tree (expr, type, comb->rest, double_int_one, comb);

  /* Ensure that we get x - 1, not x + (-1) or x + 0xff..f if x is
     unsigned.  */
  if (comb->offset.is_negative ())
    {
      off = -comb->offset;
      sgn = double_int_minus_one;
    }
  else
    {
      off = comb->offset;
      sgn = double_int_one;
    }
  return add_elt_to_tree (expr, type, double_int_to_tree (type1, off), sgn,
			  comb);
}

コード例 #2

ファイル: tree-affine.c プロジェクト: applesnake/cocotron-tools-gpl3

tree
aff_combination_to_tree (aff_tree *comb)
{
  tree type = comb->type;
  tree expr = comb->rest;
  unsigned i;
  double_int off, sgn;

  gcc_assert (comb->n == MAX_AFF_ELTS || comb->rest == NULL_TREE);

  for (i = 0; i < comb->n; i++)
    expr = add_elt_to_tree (expr, type, comb->elts[i].val, comb->elts[i].coef,
			    comb);

  /* Ensure that we get x - 1, not x + (-1) or x + 0xff..f if x is
     unsigned.  */
  if (double_int_negative_p (comb->offset))
    {
      off = double_int_neg (comb->offset);
      sgn = double_int_minus_one;
    }
  else
    {
      off = comb->offset;
      sgn = double_int_one;
    }
  return add_elt_to_tree (expr, type, double_int_to_tree (type, off), sgn,
			  comb);
}

コード例 #3

ファイル: tree-affine.c プロジェクト: MaxKellermann/gcc

tree
aff_combination_to_tree (aff_tree *comb)
{
  tree type = comb->type, base = NULL_TREE, expr = NULL_TREE;
  unsigned i;
  poly_widest_int off;
  int sgn;

  gcc_assert (comb->n == MAX_AFF_ELTS || comb->rest == NULL_TREE);

  i = 0;
  if (POINTER_TYPE_P (type))
    {
      type = sizetype;
      if (comb->n > 0 && comb->elts[0].coef == 1
	  && POINTER_TYPE_P (TREE_TYPE (comb->elts[0].val)))
	{
	  base = comb->elts[0].val;
	  ++i;
	}
    }

  for (; i < comb->n; i++)
    expr = add_elt_to_tree (expr, type, comb->elts[i].val, comb->elts[i].coef);

  if (comb->rest)
    expr = add_elt_to_tree (expr, type, comb->rest, 1);

  /* Ensure that we get x - 1, not x + (-1) or x + 0xff..f if x is
     unsigned.  */
  if (known_lt (comb->offset, 0))
    {
      off = -comb->offset;
      sgn = -1;
    }
  else
    {
      off = comb->offset;
      sgn = 1;
    }
  expr = add_elt_to_tree (expr, type, wide_int_to_tree (type, off), sgn);

  if (base)
    return fold_build_pointer_plus (base, expr);
  else
    return fold_convert (comb->type, expr);
}