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e5a23585 | 1 | /* Loop manipulation header. |
aad93da1 | 2 | Copyright (C) 2014-2017 Free Software Foundation, Inc. |
e5a23585 | 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 | ||
7465dbcd | 37 | extern bool remove_path (edge, bool * = NULL, bitmap = NULL); |
e5a23585 | 38 | extern void place_new_loop (struct function *, struct loop *); |
39 | extern void add_loop (struct loop *, struct loop *); | |
ca69b069 | 40 | extern void scale_loop_frequencies (struct loop *, profile_probability); |
41 | extern void scale_loop_profile (struct loop *, profile_probability, gcov_type); | |
e5a23585 | 42 | extern edge create_empty_if_region_on_edge (edge, tree); |
43 | extern struct loop *create_empty_loop_on_edge (edge, tree, tree, tree, tree, | |
44 | tree *, tree *, struct loop *); | |
45 | extern struct loop *loopify (edge, edge, | |
46 | basic_block, edge, edge, bool, | |
ca69b069 | 47 | profile_probability, profile_probability); |
e5a23585 | 48 | extern void unloop (struct loop *, bool *, bitmap); |
49 | extern void copy_loop_info (struct loop *loop, struct loop *target); | |
baf1c4a6 | 50 | extern struct loop * duplicate_loop (struct loop *, struct loop *, |
51 | struct loop * = NULL); | |
e5a23585 | 52 | extern void duplicate_subloops (struct loop *, struct loop *); |
53 | extern bool can_duplicate_loop_p (const struct loop *loop); | |
54 | extern bool duplicate_loop_to_header_edge (struct loop *, edge, | |
55 | unsigned, sbitmap, edge, | |
56 | vec<edge> *, int); | |
57 | extern bool mfb_keep_just (edge); | |
58 | basic_block create_preheader (struct loop *, int); | |
59 | extern void create_preheaders (int); | |
60 | extern void force_single_succ_latches (void); | |
61 | struct loop * loop_version (struct loop *, void *, | |
720cfc43 | 62 | basic_block *, |
63 | profile_probability, profile_probability, | |
ca69b069 | 64 | profile_probability, profile_probability, bool); |
e5a23585 | 65 | |
66 | #endif /* GCC_CFGLOOPMANIP_H */ |