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[official-gcc.git] / gcc / tree-ssa-loop-manip.h
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1 /* Header file for High-level loop manipulation functions.
2 Copyright (C) 2013-2021 Free Software Foundation, Inc.
4 This file is part of GCC.
6 GCC is free software; you can redistribute it and/or modify it under
7 the terms of the GNU General Public License as published by the Free
8 Software Foundation; either version 3, or (at your option) any later
9 version.
11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 for more details.
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING3. If not see
18 <http://www.gnu.org/licenses/>. */
20 #ifndef GCC_TREE_SSA_LOOP_MANIP_H
21 #define GCC_TREE_SSA_LOOP_MANIP_H
23 typedef void (*transform_callback)(class loop *, void *);
25 extern void create_iv (tree, tree, tree, class loop *, gimple_stmt_iterator *,
26 bool, tree *, tree *);
27 extern void rewrite_into_loop_closed_ssa_1 (bitmap, unsigned, int,
28 class loop *);
29 extern void rewrite_into_loop_closed_ssa (bitmap, unsigned);
30 extern void rewrite_virtuals_into_loop_closed_ssa (class loop *);
31 extern void verify_loop_closed_ssa (bool, class loop * = NULL);
33 static inline void
34 checking_verify_loop_closed_ssa (bool verify_ssa_p, class loop *loop = NULL)
36 if (flag_checking)
37 verify_loop_closed_ssa (verify_ssa_p, loop);
40 extern basic_block split_loop_exit_edge (edge, bool = false);
41 extern basic_block ip_end_pos (class loop *);
42 extern basic_block ip_normal_pos (class loop *);
43 extern void standard_iv_increment_position (class loop *,
44 gimple_stmt_iterator *, bool *);
45 extern bool
46 gimple_duplicate_loop_body_to_header_edge (class loop *, edge, unsigned int,
47 sbitmap, edge, vec<edge> *, int);
48 extern bool can_unroll_loop_p (class loop *loop, unsigned factor,
49 class tree_niter_desc *niter);
50 extern gcov_type niter_for_unrolled_loop (class loop *, unsigned);
51 extern void tree_transform_and_unroll_loop (class loop *, unsigned,
52 tree_niter_desc *,
53 transform_callback, void *);
54 extern void tree_unroll_loop (class loop *, unsigned, tree_niter_desc *);
55 extern tree canonicalize_loop_ivs (class loop *, tree *, bool);
56 extern unsigned int loop_invariant_motion_in_fun (function *, bool);
59 #endif /* GCC_TREE_SSA_LOOP_MANIP_H */