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e5a23585 | 1 | /* Calculate (post)dominators header file. |
fbd26352 | 2 | Copyright (C) 2014-2019 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 | |
7 | under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 3, or (at your option) | |
9 | any later version. | |
10 | ||
11 | GCC is distributed in the hope that it will be useful, but WITHOUT | |
12 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
13 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public | |
14 | License 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_DOMINANCE_H | |
21 | #define GCC_DOMINANCE_H | |
22 | ||
23 | enum cdi_direction | |
24 | { | |
25 | CDI_DOMINATORS = 1, | |
26 | CDI_POST_DOMINATORS = 2 | |
27 | }; | |
28 | ||
29 | /* State of dominance information. */ | |
30 | ||
31 | enum dom_state | |
32 | { | |
33 | DOM_NONE, /* Not computed at all. */ | |
34 | DOM_NO_FAST_QUERY, /* The data is OK, but the fast query data are not usable. */ | |
35 | DOM_OK /* Everything is ok. */ | |
36 | }; | |
37 | ||
38 | extern void calculate_dominance_info (enum cdi_direction); | |
84769861 | 39 | extern void calculate_dominance_info_for_region (enum cdi_direction, |
40 | vec<basic_block>); | |
e5a23585 | 41 | extern void free_dominance_info (function *, enum cdi_direction); |
42 | extern void free_dominance_info (enum cdi_direction); | |
84769861 | 43 | extern void free_dominance_info_for_region (function *, |
44 | enum cdi_direction, | |
45 | vec<basic_block>); | |
e5a23585 | 46 | extern basic_block get_immediate_dominator (enum cdi_direction, basic_block); |
47 | extern void set_immediate_dominator (enum cdi_direction, basic_block, | |
48 | basic_block); | |
49 | extern vec<basic_block> get_dominated_by (enum cdi_direction, basic_block); | |
50 | extern vec<basic_block> get_dominated_by_region (enum cdi_direction, | |
51 | basic_block *, | |
52 | unsigned); | |
53 | extern vec<basic_block> get_dominated_to_depth (enum cdi_direction, | |
54 | basic_block, int); | |
55 | extern vec<basic_block> get_all_dominated_blocks (enum cdi_direction, | |
56 | basic_block); | |
57 | extern void redirect_immediate_dominators (enum cdi_direction, basic_block, | |
58 | basic_block); | |
59 | extern basic_block nearest_common_dominator (enum cdi_direction, | |
60 | basic_block, basic_block); | |
61 | extern basic_block nearest_common_dominator_for_set (enum cdi_direction, | |
62 | bitmap); | |
63 | extern bool dominated_by_p (enum cdi_direction, const_basic_block, | |
64 | const_basic_block); | |
65 | unsigned bb_dom_dfs_in (enum cdi_direction, basic_block); | |
66 | unsigned bb_dom_dfs_out (enum cdi_direction, basic_block); | |
67 | extern void verify_dominators (enum cdi_direction); | |
382ecba7 | 68 | |
69 | /* Verify invariants of computed dominance information, if internal consistency | |
70 | checks are enabled. */ | |
71 | ||
72 | static inline void | |
73 | checking_verify_dominators (cdi_direction dir) | |
74 | { | |
75 | if (flag_checking) | |
76 | verify_dominators (dir); | |
77 | } | |
78 | ||
e5a23585 | 79 | basic_block recompute_dominator (enum cdi_direction, basic_block); |
80 | extern void iterate_fix_dominators (enum cdi_direction, | |
81 | vec<basic_block> , bool); | |
82 | extern void add_to_dominance_info (enum cdi_direction, basic_block); | |
83 | extern void delete_from_dominance_info (enum cdi_direction, basic_block); | |
84 | extern basic_block first_dom_son (enum cdi_direction, basic_block); | |
85 | extern basic_block next_dom_son (enum cdi_direction, basic_block); | |
86 | extern enum dom_state dom_info_state (function *, enum cdi_direction); | |
87 | extern enum dom_state dom_info_state (enum cdi_direction); | |
88 | extern void set_dom_info_availability (enum cdi_direction, enum dom_state); | |
89 | extern bool dom_info_available_p (function *, enum cdi_direction); | |
90 | extern bool dom_info_available_p (enum cdi_direction); | |
91 | ||
92 | ||
93 | ||
94 | #endif /* GCC_DOMINANCE_H */ |