/* Data structures and function declarations for the SSA value propagation
engine.
- Copyright (C) 2004, 2005 Free Software Foundation, Inc.
+ Copyright (C) 2004, 2005, 2007 Free Software Foundation, Inc.
Contributed by Diego Novillo <dnovillo@redhat.com>
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 2, or (at your option)
+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,
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 COPYING. If not, write to
-the Free Software Foundation, 51 Franklin Street, Fifth Floor,
-Boston, MA 02110-1301, USA. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
#ifndef _TREE_SSA_PROPAGATE_H
#define _TREE_SSA_PROPAGATE_H 1
/* In tree-ssa-propagate.c */
void ssa_propagate (ssa_prop_visit_stmt_fn, ssa_prop_visit_phi_fn);
tree get_rhs (tree);
+bool valid_gimple_expression_p (tree expr);
bool set_rhs (tree *, tree);
tree first_vdef (tree);
bool stmt_makes_single_load (tree);
bool stmt_makes_single_store (tree);
prop_value_t *get_value_loaded_by (tree, prop_value_t *);
bool replace_uses_in (tree, bool *, prop_value_t *);
-void substitute_and_fold (prop_value_t *, bool);
+bool substitute_and_fold (prop_value_t *, bool);
#endif /* _TREE_SSA_PROPAGATE_H */