1 /* General-purpose hooks.
2 Copyright (C) 2002, 2003 Free Software Foundation, Inc.
4 This program is free software; you can redistribute it and/or modify it
5 under the terms of the GNU General Public License as published by the
6 Free Software Foundation; either version 2, or (at your option) any
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18 In other words, you are welcome to use, share and improve this program.
19 You are forbidden to forbid anyone else to use, share and improve
20 what you give them. Help stamp out software-hoarding! */
22 /* This file contains generic hooks that can be used as defaults for
23 target or language-dependent hook initializers. */
27 #include "coretypes.h"
31 /* Generic hook that does absolutely zappo. */
37 /* Generic hook that takes no arguments and returns false. */
39 hook_bool_void_false ()
44 /* Generic hook that takes (tree, int) and does nothing. */
46 hook_void_tree_int (a, b)
47 tree a ATTRIBUTE_UNUSED;
48 int b ATTRIBUTE_UNUSED;
52 /* Generic hook that takes (FILE *, const char *) and does nothing. */
54 hook_void_FILEptr_constcharptr (a, b)
55 FILE *a ATTRIBUTE_UNUSED;
56 const char *b ATTRIBUTE_UNUSED;
60 /* Used for the TARGET_ASM_CAN_OUTPUT_MI_THUNK hook. */
62 hook_bool_tree_hwi_hwi_tree_false (a, b, c, d)
63 tree a ATTRIBUTE_UNUSED;
64 HOST_WIDE_INT b ATTRIBUTE_UNUSED;
65 HOST_WIDE_INT c ATTRIBUTE_UNUSED;
66 tree d ATTRIBUTE_UNUSED;
72 hook_bool_tree_hwi_hwi_tree_true (a, b, c, d)
73 tree a ATTRIBUTE_UNUSED;
74 HOST_WIDE_INT b ATTRIBUTE_UNUSED;
75 HOST_WIDE_INT c ATTRIBUTE_UNUSED;
76 tree d ATTRIBUTE_UNUSED;
82 default_can_output_mi_thunk_no_vcall (a, b, c, d)
83 tree a ATTRIBUTE_UNUSED;
84 HOST_WIDE_INT b ATTRIBUTE_UNUSED;
86 tree d ATTRIBUTE_UNUSED;
91 /* ??? Used for comp_type_attributes, which ought to return bool. */
93 hook_int_tree_tree_1 (a, b)
94 tree a ATTRIBUTE_UNUSED;
95 tree b ATTRIBUTE_UNUSED;
102 rtx a ATTRIBUTE_UNUSED;
108 hook_int_void_0 (void)
114 hook_int_size_t_constcharptr_int_0 (size_t a ATTRIBUTE_UNUSED,
115 const char *b ATTRIBUTE_UNUSED,
116 int c ATTRIBUTE_UNUSED)
123 tree a ATTRIBUTE_UNUSED;
128 hook_void_tree_treeptr (a, b)
129 tree a ATTRIBUTE_UNUSED;
130 tree *b ATTRIBUTE_UNUSED;
135 hook_bool_tree_false (a)
136 tree a ATTRIBUTE_UNUSED;
142 hook_bool_tree_tree_false (a, b)
143 tree a ATTRIBUTE_UNUSED;
144 tree b ATTRIBUTE_UNUSED;
150 hook_bool_rtx_false (a)
151 rtx a ATTRIBUTE_UNUSED;
157 hook_bool_rtx_int_int_intp_false (a, b, c, d)
158 rtx a ATTRIBUTE_UNUSED;
159 int b ATTRIBUTE_UNUSED;
160 int c ATTRIBUTE_UNUSED;
161 int *d ATTRIBUTE_UNUSED;
166 /* Generic hook that takes an rtx and returns it. */
168 hook_rtx_rtx_identity (x)
174 /* Generic hook that takes an rtx and returns NULL_RTX. */
176 hook_rtx_rtx_null (x)
177 rtx x ATTRIBUTE_UNUSED;