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1 : : /* Header file for Nested function decomposition for GIMPLE.
2 : : Copyright (C) 2013-2024 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_TREE_NESTED_H
21 : : #define GCC_TREE_NESTED_H
22 : :
23 : : extern tree build_addr (tree);
24 : : extern void insert_field_into_struct (tree, tree);
25 : : extern void lower_nested_functions (tree);
26 : :
27 : : class nested_function_info
28 : : {
29 : : public:
30 : : /* Constructor. */
31 : 27779 : nested_function_info ()
32 : 27779 : : origin (NULL),
33 : 27779 : nested (NULL),
34 : 27779 : 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 : 78863753 : first_nested_function (cgraph_node *node)
69 : : {
70 : 78863753 : nested_function_info *info = nested_function_info::get (node);
71 : 78863753 : return info ? info->nested : NULL;
72 : : }
73 : :
74 : : /* Return next nested function (used to iterate from first_nested_function). */
75 : : inline cgraph_node *
76 : 98717 : next_nested_function (cgraph_node *node)
77 : : {
78 : 98717 : return nested_function_info::get (node)->next_nested;
79 : : }
80 : :
81 : : /* Return origin of nested function (and NULL otherwise). */
82 : : inline cgraph_node *
83 : 25435 : nested_function_origin (cgraph_node *node)
84 : : {
85 : 25435 : nested_function_info *info = nested_function_info::get (node);
86 : 25435 : return info ? info->origin : NULL;
87 : : }
88 : :
89 : : #endif /* GCC_TREE_NESTED_H */
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