1 /* IPA reference lists.
2 Copyright (C) 2010-2013 Free Software Foundation, Inc.
3 Contributed by Jan Hubicka
5 This file is part of GCC.
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
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
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/>. */
23 union symtab_node_def
;
24 typedef union symtab_node_def
*symtab_node
;
25 typedef const union symtab_node_def
*const_symtab_node
;
28 /* How the reference is done. */
29 enum GTY(()) ipa_ref_use
37 /* Record of reference in callgraph or varpool. */
38 struct GTY(()) ipa_ref
40 symtab_node referring
;
43 unsigned int lto_stmt_uid
;
44 unsigned int referred_index
;
45 ENUM_BITFIELD (ipa_ref_use
) use
:2;
46 unsigned int speculative
:1;
49 typedef struct ipa_ref ipa_ref_t
;
50 typedef struct ipa_ref
*ipa_ref_ptr
;
53 /* List of references. This is stored in both callgraph and varpool nodes. */
54 struct GTY(()) ipa_ref_list
56 /* Store actual references in references vector. */
57 vec
<ipa_ref_t
, va_gc
> *references
;
58 /* Referring is vector of pointers to references. It must not live in GGC space
59 or GGC will try to mark middle of references vectors. */
60 vec
<ipa_ref_ptr
> GTY((skip
)) referring
;
63 struct ipa_ref
* ipa_record_reference (symtab_node
,
65 enum ipa_ref_use
, gimple
);
66 struct ipa_ref
* ipa_maybe_record_reference (symtab_node
, tree
,
67 enum ipa_ref_use
, gimple
);
69 void ipa_remove_reference (struct ipa_ref
*);
70 void ipa_remove_all_references (struct ipa_ref_list
*);
71 void ipa_remove_all_referring (struct ipa_ref_list
*);
72 void ipa_dump_references (FILE *, struct ipa_ref_list
*);
73 void ipa_dump_referring (FILE *, struct ipa_ref_list
*);
74 void ipa_clone_references (symtab_node
, struct ipa_ref_list
*);
75 void ipa_clone_referring (symtab_node
, struct ipa_ref_list
*);
76 struct ipa_ref
* ipa_clone_ref (struct ipa_ref
*, symtab_node
, gimple
);
77 bool ipa_ref_cannot_lead_to_return (struct ipa_ref
*);
78 bool ipa_ref_has_aliases_p (struct ipa_ref_list
*);
79 struct ipa_ref
* ipa_find_reference (symtab_node
, symtab_node
, gimple
, unsigned int);
80 void ipa_remove_stmt_references (symtab_node
, gimple
);
81 void ipa_clear_stmts_in_references (symtab_node
);