GCC Middle and Back End API Reference
ipa-ref-inline.h
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1 /* IPA reference lists.
2  Copyright (C) 2010-2013 Free Software Foundation, Inc.
3  Contributed by Jan Hubicka
4 
5 This file is part of GCC.
6 
7 GCC is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 3, or (at your option) any later
10 version.
11 
12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15 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 /* Return callgraph node REF is referring. */
22 static inline struct cgraph_node *
23 ipa_ref_node (struct ipa_ref *ref)
24 {
25  return cgraph (ref->referred);
26 }
27 
28 /* Return varpool node REF is referring. */
29 
30 static inline struct varpool_node *
31 ipa_ref_varpool_node (struct ipa_ref *ref)
32 {
33  return varpool (ref->referred);
34 }
35 
36 /* Return cgraph node REF is in. */
37 
38 static inline struct cgraph_node *
39 ipa_ref_referring_node (struct ipa_ref *ref)
40 {
41  return cgraph (ref->referring);
42 }
43 
44 /* Return varpool node REF is in. */
45 
46 static inline struct varpool_node *
47 ipa_ref_referring_varpool_node (struct ipa_ref *ref)
48 {
49  return varpool (ref->referring);
50 }
51 
52 /* Return reference list REF is in. */
53 
54 static inline struct ipa_ref_list *
55 ipa_ref_referring_ref_list (struct ipa_ref *ref)
56 {
57  return &ref->referring->ref_list;
58 }
59 
60 /* Return reference list REF is in. */
61 
62 static inline struct ipa_ref_list *
63 ipa_ref_referred_ref_list (struct ipa_ref *ref)
64 {
65  return &ref->referred->ref_list;
66 }
67 
68 /* Return first reference in LIST or NULL if empty. */
69 
70 static inline struct ipa_ref *
71 ipa_ref_list_first_reference (struct ipa_ref_list *list)
72 {
73  if (!vec_safe_length (list->references))
74  return NULL;
75  return &(*list->references)[0];
76 }
77 
78 /* Return first referring ref in LIST or NULL if empty. */
79 
80 static inline struct ipa_ref *
81 ipa_ref_list_first_referring (struct ipa_ref_list *list)
82 {
83  if (!list->referring.length ())
84  return NULL;
85  return list->referring[0];
86 }
87 
88 /* Clear reference list. */
89 
90 static inline void
91 ipa_empty_ref_list (struct ipa_ref_list *list)
92 {
93  list->referring.create (0);
94  list->references = NULL;
95 }
96 
97 /* Clear reference list. */
98 
99 static inline unsigned int
100 ipa_ref_list_nreferences (struct ipa_ref_list *list)
101 {
102  return vec_safe_length (list->references);
103 }
104 
105 #define ipa_ref_list_reference_iterate(L,I,P) \
106  vec_safe_iterate ((L)->references, (I), &(P))
107 #define ipa_ref_list_referring_iterate(L,I,P) \
108  (L)->referring.iterate ((I), &(P))