1 /* General-purpose hooks.
2 Copyright (C) 2002, 2003, 2004, 2005 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 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 (void)
44 /* Generic hook that takes no arguments and returns true. */
46 hook_bool_void_true (void)
51 /* Generic hook that takes no arguments and returns NO_REGS. */
53 hook_int_void_no_regs (void)
58 /* Generic hook that takes (bool) and returns false. */
60 hook_bool_bool_false (bool a ATTRIBUTE_UNUSED)
65 /* Generic hook that takes (enum machine_mode) and returns false. */
67 hook_bool_mode_false (enum machine_mode mode ATTRIBUTE_UNUSED)
72 /* Generic hook that takes (enum machine_mode, rtx) and returns false. */
74 hook_bool_mode_rtx_false (enum machine_mode mode ATTRIBUTE_UNUSED,
75 rtx value ATTRIBUTE_UNUSED)
80 /* Generic hook that takes (FILE *, const char *) and does nothing. */
82 hook_void_FILEptr_constcharptr (FILE *a ATTRIBUTE_UNUSED, const char *b ATTRIBUTE_UNUSED)
86 /* Used for the TARGET_ASM_CAN_OUTPUT_MI_THUNK hook. */
88 hook_bool_tree_hwi_hwi_tree_false (tree a ATTRIBUTE_UNUSED,
89 HOST_WIDE_INT b ATTRIBUTE_UNUSED,
90 HOST_WIDE_INT c ATTRIBUTE_UNUSED,
91 tree d ATTRIBUTE_UNUSED)
97 hook_bool_tree_hwi_hwi_tree_true (tree a ATTRIBUTE_UNUSED,
98 HOST_WIDE_INT b ATTRIBUTE_UNUSED,
99 HOST_WIDE_INT c ATTRIBUTE_UNUSED,
100 tree d ATTRIBUTE_UNUSED)
106 hook_bool_constcharptr_size_t_false (const char *a ATTRIBUTE_UNUSED,
107 size_t b ATTRIBUTE_UNUSED)
113 hook_bool_size_t_constcharptr_int_true (size_t a ATTRIBUTE_UNUSED,
114 const char *b ATTRIBUTE_UNUSED,
115 int c ATTRIBUTE_UNUSED)
121 default_can_output_mi_thunk_no_vcall (tree a ATTRIBUTE_UNUSED,
122 HOST_WIDE_INT b ATTRIBUTE_UNUSED,
124 tree d ATTRIBUTE_UNUSED)
130 hook_int_tree_0 (tree a ATTRIBUTE_UNUSED)
135 /* ??? Used for comp_type_attributes, which ought to return bool. */
137 hook_int_tree_tree_1 (tree a ATTRIBUTE_UNUSED, tree b ATTRIBUTE_UNUSED)
143 hook_int_rtx_0 (rtx a ATTRIBUTE_UNUSED)
149 hook_int_size_t_constcharptr_int_0 (size_t a ATTRIBUTE_UNUSED,
150 const char *b ATTRIBUTE_UNUSED,
151 int c ATTRIBUTE_UNUSED)
157 hook_uint_uint_constcharptrptr_0 (unsigned int a ATTRIBUTE_UNUSED,
158 const char **b ATTRIBUTE_UNUSED)
164 hook_void_tree (tree a ATTRIBUTE_UNUSED)
169 hook_void_constcharptr (const char *a ATTRIBUTE_UNUSED)
174 hook_void_tree_treeptr (tree a ATTRIBUTE_UNUSED, tree *b ATTRIBUTE_UNUSED)
179 hook_bool_tree_false (tree a ATTRIBUTE_UNUSED)
185 hook_bool_tree_true (tree a ATTRIBUTE_UNUSED)
191 hook_bool_tree_tree_false (tree a ATTRIBUTE_UNUSED, tree b ATTRIBUTE_UNUSED)
197 hook_bool_tree_bool_false (tree a ATTRIBUTE_UNUSED, bool b ATTRIBUTE_UNUSED)
203 hook_bool_rtx_false (rtx a ATTRIBUTE_UNUSED)
209 hook_bool_uintp_uintp_false (unsigned int *a ATTRIBUTE_UNUSED,
210 unsigned int *b ATTRIBUTE_UNUSED)
216 hook_bool_rtx_int_int_intp_false (rtx a ATTRIBUTE_UNUSED,
217 int b ATTRIBUTE_UNUSED,
218 int c ATTRIBUTE_UNUSED,
219 int *d ATTRIBUTE_UNUSED)
224 /* Generic hook that takes an rtx and returns it. */
226 hook_rtx_rtx_identity (rtx x)
231 /* Generic hook that takes an rtx and returns NULL_RTX. */
233 hook_rtx_rtx_null (rtx x ATTRIBUTE_UNUSED)
238 /* Generic hook that takes a tree and an int and returns NULL_RTX. */
240 hook_rtx_tree_int_null (tree a ATTRIBUTE_UNUSED, int b ATTRIBUTE_UNUSED)
245 /* Generic hook that takes three trees and returns the last one as is. */
247 hook_tree_tree_tree_tree_3rd_identity (tree a ATTRIBUTE_UNUSED,
248 tree b ATTRIBUTE_UNUSED, tree c)
253 /* Generic hook that takes a tree and returns a NULL string. */
255 hook_constcharptr_tree_null (tree t ATTRIBUTE_UNUSED)
261 hook_tree_tree_tree_bool_null (tree t0 ATTRIBUTE_UNUSED, tree t1 ATTRIBUTE_UNUSED,
262 bool ignore ATTRIBUTE_UNUSED)
268 hook_tree_tree_tree_null (tree t0 ATTRIBUTE_UNUSED, tree t1 ATTRIBUTE_UNUSED)
273 /* Generic hook that takes a rtx and returns a NULL string. */
275 hook_constcharptr_rtx_null (rtx r ATTRIBUTE_UNUSED)
281 hook_constcharptr_tree_tree_null (tree t0 ATTRIBUTE_UNUSED,
282 tree t1 ATTRIBUTE_UNUSED)
288 hook_constcharptr_int_tree_null (int i ATTRIBUTE_UNUSED,
289 tree t0 ATTRIBUTE_UNUSED)
295 hook_constcharptr_int_tree_tree_null (int i ATTRIBUTE_UNUSED,
296 tree t0 ATTRIBUTE_UNUSED,
297 tree t1 ATTRIBUTE_UNUSED)