GCC Middle and Back End API Reference
tree-cfg.h
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1 /* Data and Control Flow Analysis for Trees.
2  Copyright (C) 2001-2013 Free Software Foundation, Inc.
3  Contributed by Diego Novillo <dnovillo@redhat.com>
4 
5 This file is part of GCC.
6 
7 GCC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3, or (at your option)
10 any later version.
11 
12 GCC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16 
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING3. If not see
19 <http://www.gnu.org/licenses/>. */
20 
21 #ifndef _TREE_CFG_H
22 #define _TREE_CFG_H
23 
24 /* Location to track pending stmt for edge insertion. */
25 #define PENDING_STMT(e) ((e)->insns.g)
26 
27 extern void init_empty_tree_cfg_for_function (struct function *);
28 extern void init_empty_tree_cfg (void);
29 extern void fold_cond_expr_cond (void);
30 extern void start_recording_case_labels (void);
31 extern void end_recording_case_labels (void);
32 extern basic_block label_to_block_fn (struct function *, tree);
33 #define label_to_block(t) (label_to_block_fn (cfun, t))
34 extern void make_abnormal_goto_edges (basic_block, bool);
35 extern void cleanup_dead_labels (void);
36 extern void group_case_labels_stmt (gimple);
37 extern void group_case_labels (void);
38 extern void replace_uses_by (tree, tree);
39 extern basic_block single_noncomplex_succ (basic_block bb);
40 extern void notice_special_calls (gimple);
41 extern void clear_special_calls (void);
42 extern edge find_taken_edge (basic_block, tree);
43 extern void gimple_debug_bb (basic_block);
44 extern basic_block gimple_debug_bb_n (int);
45 extern void gimple_debug_cfg (int);
46 extern void gimple_dump_cfg (FILE *, int);
47 extern void dump_cfg_stats (FILE *);
48 extern void debug_cfg_stats (void);
49 extern bool stmt_can_make_abnormal_goto (gimple);
50 extern bool is_ctrl_stmt (gimple);
51 extern bool is_ctrl_altering_stmt (gimple);
52 extern bool simple_goto_p (gimple);
53 extern bool stmt_ends_bb_p (gimple);
54 extern void delete_tree_cfg_annotations (void);
55 extern gimple first_stmt (basic_block);
56 extern gimple last_stmt (basic_block);
57 extern gimple last_and_only_stmt (basic_block);
58 extern void verify_gimple_in_seq (gimple_seq);
59 extern void verify_gimple_in_cfg (struct function *);
60 extern tree gimple_block_label (basic_block);
61 extern void add_phi_args_after_copy_bb (basic_block);
62 extern void add_phi_args_after_copy (basic_block *, unsigned, edge);
63 extern bool gimple_duplicate_sese_region (edge, edge, basic_block *, unsigned,
64  basic_block *, bool);
65 extern bool gimple_duplicate_sese_tail (edge, edge, basic_block *, unsigned,
66  basic_block *);
67 extern void gather_blocks_in_sese_region (basic_block entry, basic_block exit,
68  vec<basic_block> *bbs_p);
69 extern basic_block move_sese_region_to_fn (struct function *, basic_block,
70  basic_block, tree);
71 extern void dump_function_to_file (tree, FILE *, int);
72 extern void debug_function (tree, int) ;
73 extern void print_loops_bb (FILE *, basic_block, int, int);
74 extern void print_loops (FILE *, int);
75 extern void debug (struct loop &ref);
76 extern void debug (struct loop *ptr);
77 extern void debug_verbose (struct loop &ref);
78 extern void debug_verbose (struct loop *ptr);
79 extern void debug_loops (int);
80 extern void debug_loop (struct loop *, int);
81 extern void debug_loop_num (unsigned, int);
82 extern void remove_edge_and_dominated_blocks (edge);
83 extern bool gimple_purge_dead_eh_edges (basic_block);
84 extern bool gimple_purge_all_dead_eh_edges (const_bitmap);
85 extern bool gimple_purge_dead_abnormal_call_edges (basic_block);
86 extern bool gimple_purge_all_dead_abnormal_call_edges (const_bitmap);
87 extern tree gimplify_build3 (gimple_stmt_iterator *, enum tree_code,
88  tree, tree, tree, tree);
89 extern tree gimplify_build2 (gimple_stmt_iterator *, enum tree_code,
90  tree, tree, tree);
91 extern tree gimplify_build1 (gimple_stmt_iterator *, enum tree_code,
92  tree, tree);
93 extern void extract_true_false_edges_from_block (basic_block, edge *, edge *);
94 extern unsigned int execute_fixup_cfg (void);
95 
96 #endif /* _TREE_CFG_H */