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1/* Definitions for code generation pass of GNU compiler.
2 Copyright (C) 2001-2017 Free Software Foundation, Inc.
3
4This file is part of GCC.
5
6GCC is free software; you can redistribute it and/or modify
7it under the terms of the GNU General Public License as published by
8the Free Software Foundation; either version 3, or (at your option)
9any later version.
10
11GCC is distributed in the hope that it will be useful,
12but WITHOUT ANY WARRANTY; without even the implied warranty of
13MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14GNU General Public License for more details.
15
16You should have received a copy of the GNU General Public License
17along with GCC; see the file COPYING3. If not see
18<http://www.gnu.org/licenses/>. */
19
20#ifndef GCC_LIBFUNCS_H
21#define GCC_LIBFUNCS_H
22
23
24/* Enumeration of indexes into libfunc_table. */
25enum libfunc_index
26{
27 LTI_unwind_sjlj_register,
28 LTI_unwind_sjlj_unregister,
29 LTI_synchronize,
30 LTI_MAX
31};
32
33/* Information about an optab-related libfunc. The op field is logically
34 an enum optab_d, and the mode fields are logically machine_mode.
35 However, in the absence of forward-declared enums, there's no practical
36 benefit of pulling in the defining headers.
37
38 We use the same hashtable for normal optabs and conversion optabs. In
39 the first case mode2 is forced to VOIDmode. */
40
41struct GTY((for_user)) libfunc_entry {
42 int op, mode1, mode2;
43 rtx libfunc;
44};
45
46/* Descriptor for libfunc_entry. */
47
48struct libfunc_hasher : ggc_ptr_hash<libfunc_entry>
49{
50 static hashval_t hash (libfunc_entry *);
51 static bool equal (libfunc_entry *, libfunc_entry *);
52};
53
54/* Target-dependent globals. */
55struct GTY(()) target_libfuncs {
56 /* SYMBOL_REF rtx's for the library functions that are called
57 implicitly and not via optabs. */
58 rtx x_libfunc_table[LTI_MAX];
59
60 /* Hash table used to convert declarations into nodes. */
61 hash_table<libfunc_hasher> *GTY(()) x_libfunc_hash;
62};
63
64extern GTY(()) struct target_libfuncs default_target_libfuncs;
65#if SWITCHABLE_TARGET
66extern struct target_libfuncs *this_target_libfuncs;
67#else
68#define this_target_libfuncs (&default_target_libfuncs)
69#endif
70
71#define libfunc_table \
72 (this_target_libfuncs->x_libfunc_table)
73
74/* Accessor macros for libfunc_table. */
75
76#define unwind_sjlj_register_libfunc (libfunc_table[LTI_unwind_sjlj_register])
77#define unwind_sjlj_unregister_libfunc \
78 (libfunc_table[LTI_unwind_sjlj_unregister])
79#define synchronize_libfunc (libfunc_table[LTI_synchronize])
80
81/* In explow.c */
82extern void set_stack_check_libfunc (const char *);
83
84#endif /* GCC_LIBFUNCS_H */
85

Warning: That file was not part of the compilation database. It may have many parsing errors.