1/* Header file for High-level loop manipulation functions.
2   Copyright (C) 2013-2015 Free Software Foundation, Inc.
3
4This file is part of GCC.
5
6GCC is free software; you can redistribute it and/or modify it under
7the terms of the GNU General Public License as published by the Free
8Software Foundation; either version 3, or (at your option) any later
9version.
10
11GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12WARRANTY; without even the implied warranty of MERCHANTABILITY or
13FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 for more details.
15
16You should have received a copy of the GNU General Public License
17along with GCC; see the file COPYING3.  If not see
18<http://www.gnu.org/licenses/>.  */
19
20#ifndef GCC_TREE_SSA_LOOP_MANIP_H
21#define GCC_TREE_SSA_LOOP_MANIP_H
22
23typedef void (*transform_callback)(struct loop *, void *);
24
25extern void create_iv (tree, tree, tree, struct loop *, gimple_stmt_iterator *,
26		       bool, tree *, tree *);
27extern void rewrite_into_loop_closed_ssa (bitmap, unsigned);
28extern void verify_loop_closed_ssa (bool);
29extern basic_block split_loop_exit_edge (edge);
30extern basic_block ip_end_pos (struct loop *);
31extern basic_block ip_normal_pos (struct loop *);
32extern void standard_iv_increment_position (struct loop *,
33					    gimple_stmt_iterator *, bool *);
34extern bool gimple_duplicate_loop_to_header_edge (struct loop *, edge,
35						  unsigned int, sbitmap,
36						  edge, vec<edge> *,
37						  int);
38extern bool can_unroll_loop_p (struct loop *loop, unsigned factor,
39			       struct tree_niter_desc *niter);
40extern void tree_transform_and_unroll_loop (struct loop *, unsigned,
41					    edge, struct tree_niter_desc *,
42					    transform_callback, void *);
43extern void tree_unroll_loop (struct loop *, unsigned,
44			      edge, struct tree_niter_desc *);
45extern tree canonicalize_loop_ivs (struct loop *, tree *, bool);
46
47
48
49#endif /* GCC_TREE_SSA_LOOP_MANIP_H */
50