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893479de | 1 | /* Loop manipulation header. |
99dee823 | 2 | Copyright (C) 2014-2021 Free Software Foundation, Inc. |
893479de AM |
3 | |
4 | This file is part of GCC. | |
5 | ||
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. | |
10 | ||
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. | |
15 | ||
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/>. */ | |
19 | ||
20 | #ifndef GCC_CFGLOOPMANIP_H | |
21 | #define GCC_CFGLOOPMANIP_H | |
22 | ||
23 | enum | |
24 | { | |
25 | CP_SIMPLE_PREHEADERS = 1, | |
26 | CP_FALLTHRU_PREHEADERS = 2 | |
27 | }; | |
28 | ||
29 | #define DLTHE_FLAG_UPDATE_FREQ 1 /* Update frequencies in | |
30 | duplicate_loop_to_header_edge. */ | |
31 | #define DLTHE_RECORD_COPY_NUMBER 2 /* Record copy number in the aux | |
32 | field of newly create BB. */ | |
33 | #define DLTHE_FLAG_COMPLETTE_PEEL 4 /* Update frequencies expecting | |
34 | a complete peeling. */ | |
35 | extern edge mfb_kj_edge; | |
36 | ||
eb2afa1a | 37 | extern bool remove_path (edge, bool * = NULL, bitmap = NULL); |
99b1c316 MS |
38 | extern void place_new_loop (struct function *, class loop *); |
39 | extern void add_loop (class loop *, class loop *); | |
40 | extern void scale_loop_frequencies (class loop *, profile_probability); | |
41 | extern void scale_loop_profile (class loop *, profile_probability, gcov_type); | |
893479de | 42 | extern edge create_empty_if_region_on_edge (edge, tree); |
99b1c316 MS |
43 | extern class loop *create_empty_loop_on_edge (edge, tree, tree, tree, tree, |
44 | tree *, tree *, class loop *); | |
99b1c316 MS |
45 | extern void unloop (class loop *, bool *, bitmap); |
46 | extern void copy_loop_info (class loop *loop, class loop *target); | |
47 | extern class loop * duplicate_loop (class loop *, class loop *, | |
48 | class loop * = NULL); | |
49 | extern void duplicate_subloops (class loop *, class loop *); | |
50 | extern bool can_duplicate_loop_p (const class loop *loop); | |
4851c80c XL |
51 | extern bool |
52 | duplicate_loop_body_to_header_edge (class loop *, edge, unsigned, sbitmap, edge, | |
53 | vec<edge> *, int); | |
893479de | 54 | extern bool mfb_keep_just (edge); |
99b1c316 | 55 | basic_block create_preheader (class loop *, int); |
893479de AM |
56 | extern void create_preheaders (int); |
57 | extern void force_single_succ_latches (void); | |
99b1c316 | 58 | class loop * loop_version (class loop *, void *, |
357067f2 JH |
59 | basic_block *, |
60 | profile_probability, profile_probability, | |
af2bbc51 | 61 | profile_probability, profile_probability, bool); |
893479de AM |
62 | |
63 | #endif /* GCC_CFGLOOPMANIP_H */ |