/* Operations with affine combinations of trees.
- Copyright (C) 2005, 2007 Free Software Foundation, Inc.
-
+ Copyright (C) 2005, 2007, 2008 Free Software Foundation, Inc.
+
This file is part of GCC.
-
+
GCC is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 3, or (at your option) any
later version.
-
+
GCC is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
-
+
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
{
/* The value of the element. */
tree val;
-
+
/* Its coefficient in the combination. */
double_int coef;
};
/* Elements and their coefficients. Type of elements may be different from
TYPE, but their sizes must be the same (STRIP_NOPS is applied to the
elements).
-
+
The coefficients are always sign extended from the precision of TYPE
(regardless of signedness of TYPE). */
struct aff_comb_elt elts[MAX_AFF_ELTS];
/* Remainder of the expression. Usually NULL, used only if there are more
- than MAX_AFF_ELTS elements. Type of REST must be TYPE. */
+ than MAX_AFF_ELTS elements. Type of REST will be either sizetype for
+ TYPE of POINTER_TYPEs or TYPE. */
tree rest;
} aff_tree;
tree aff_combination_to_tree (aff_tree *);
void unshare_aff_combination (aff_tree *);
bool aff_combination_constant_multiple_p (aff_tree *, aff_tree *, double_int *);
+void aff_combination_expand (aff_tree *, struct pointer_map_t **);
void tree_to_aff_combination_expand (tree, tree, aff_tree *,
struct pointer_map_t **);
+void get_inner_reference_aff (tree, aff_tree *, double_int *);
void free_affine_expand_cache (struct pointer_map_t **);
+
+/* Debugging functions. */
+void print_aff (FILE *, aff_tree *);
+void debug_aff (aff_tree *);