1 | /* Loop manipulation header. |
2 | Copyright (C) 2014-2023 Free Software Foundation, Inc. |
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 | = 1, |
26 | = 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 | #define DLTHE_FLAG_FLAT_PROFILE 8 /* Profile is flat; do not reduce |
36 | count by unroll factor. */ |
37 | extern edge mfb_kj_edge; |
38 | |
39 | extern bool remove_path (edge, bool * = NULL, bitmap = NULL); |
40 | extern void place_new_loop (struct function *, class loop *); |
41 | extern void add_loop (class loop *, class loop *); |
42 | extern void scale_loop_frequencies (class loop *, profile_probability); |
43 | extern void scale_loop_profile (class loop *, profile_probability, gcov_type); |
44 | extern edge create_empty_if_region_on_edge (edge, tree); |
45 | extern class loop *create_empty_loop_on_edge (edge, tree, tree, tree, tree, |
46 | tree *, tree *, class loop *); |
47 | extern void unloop (class loop *, bool *, bitmap); |
48 | extern void unloop_loops (vec<class loop *> &loops_to_unloop, |
49 | vec<int> &loops_to_unloop_nunroll, |
50 | bitmap loop_closed_ssa_invalidated, |
51 | bool *irred_invalidated); |
52 | extern void copy_loop_info (class loop *loop, class loop *target); |
53 | extern class loop * duplicate_loop (class loop *, class loop *, |
54 | class loop * = NULL); |
55 | extern void duplicate_subloops (class loop *, class loop *); |
56 | extern bool can_duplicate_loop_p (const class loop *loop); |
57 | extern bool |
58 | duplicate_loop_body_to_header_edge (class loop *, edge, unsigned, sbitmap, edge, |
59 | vec<edge> *, int); |
60 | extern bool mfb_keep_just (edge); |
61 | basic_block (class loop *, int); |
62 | extern void (int); |
63 | extern void force_single_succ_latches (void); |
64 | class loop * loop_version (class loop *, void *, |
65 | basic_block *, |
66 | profile_probability, profile_probability, |
67 | profile_probability, profile_probability, bool); |
68 | void adjust_loop_info_after_peeling (class loop *loop, int npeel, bool precise); |
69 | void scale_dominated_blocks_in_loop (class loop *loop, basic_block bb, |
70 | profile_count num, profile_count den); |
71 | edge update_loop_exit_probability_scale_dom_bbs |
72 | (class loop *loop, edge exit_edge = NULL, |
73 | profile_count desired_count = profile_count::uninitialized ()); |
74 | void update_exit_probability_after_unrolling (class loop *loop, edge new_exit); |
75 | |
76 | #endif /* GCC_CFGLOOPMANIP_H */ |
77 | |