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1fe37220 | 1 | /* Header file for Nested function decomposition for GIMPLE. |
99dee823 | 2 | Copyright (C) 2013-2021 Free Software Foundation, Inc. |
1fe37220 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_TREE_NESTED_H | |
21 | #define GCC_TREE_NESTED_H | |
22 | ||
aa00059c | 23 | extern tree build_addr (tree); |
1fe37220 AM |
24 | extern void insert_field_into_struct (tree, tree); |
25 | extern void lower_nested_functions (tree); | |
26 | ||
89576d86 JH |
27 | class nested_function_info |
28 | { | |
29 | public: | |
30 | /* Constructor. */ | |
31 | nested_function_info () | |
32 | : origin (NULL), | |
33 | nested (NULL), | |
34 | next_nested (NULL) | |
35 | { | |
36 | } | |
37 | /* Copy constructor. We can not simply copy the structure, | |
38 | because the linked lists would go wrong. However we should never | |
39 | need that. */ | |
40 | nested_function_info (const nested_function_info &) | |
41 | { | |
42 | gcc_unreachable (); | |
43 | } | |
44 | ~nested_function_info (); | |
45 | ||
46 | /* Return nested_function_info, if available. */ | |
47 | static nested_function_info *get (cgraph_node *node); | |
48 | ||
49 | /* Return nested_function_info possibly creating new one. */ | |
50 | static nested_function_info *get_create (cgraph_node *node); | |
51 | ||
52 | /* Release all nested_function_infos. */ | |
53 | static void release (void); | |
54 | ||
55 | /* For nested functions points to function the node is nested in. */ | |
56 | cgraph_node *origin; | |
57 | /* Points to first nested function, if any. */ | |
58 | cgraph_node *nested; | |
59 | /* Pointer to the next function with same origin, if any. */ | |
60 | cgraph_node *next_nested; | |
61 | }; | |
62 | ||
63 | extern void maybe_record_nested_function (cgraph_node *node); | |
64 | extern void unnest_function (cgraph_node *node); | |
65 | ||
66 | /* If there are functions nested in NODE, return first one. */ | |
67 | inline cgraph_node * | |
68 | first_nested_function (cgraph_node *node) | |
69 | { | |
70 | nested_function_info *info = nested_function_info::get (node); | |
71 | return info ? info->nested : NULL; | |
72 | } | |
73 | ||
74 | /* Return next nested function (used to iterate from first_nested_function). */ | |
75 | inline cgraph_node * | |
76 | next_nested_function (cgraph_node *node) | |
77 | { | |
78 | return nested_function_info::get (node)->next_nested; | |
79 | } | |
80 | ||
81 | /* Return origin of nested function (and NULL otherwise). */ | |
82 | inline cgraph_node * | |
83 | nested_function_origin (cgraph_node *node) | |
84 | { | |
85 | nested_function_info *info = nested_function_info::get (node); | |
86 | return info ? info->origin : NULL; | |
87 | } | |
88 | ||
1fe37220 | 89 | #endif /* GCC_TREE_NESTED_H */ |