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, 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 (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 (FILE *, const char *) and does nothing. */
74 hook_void_FILEptr_constcharptr (FILE *a ATTRIBUTE_UNUSED
, const char *b ATTRIBUTE_UNUSED
)
78 /* Used for the TARGET_ASM_CAN_OUTPUT_MI_THUNK hook. */
80 hook_bool_tree_hwi_hwi_tree_false (tree a ATTRIBUTE_UNUSED
,
81 HOST_WIDE_INT b ATTRIBUTE_UNUSED
,
82 HOST_WIDE_INT c ATTRIBUTE_UNUSED
,
83 tree d ATTRIBUTE_UNUSED
)
89 hook_bool_tree_hwi_hwi_tree_true (tree a ATTRIBUTE_UNUSED
,
90 HOST_WIDE_INT b ATTRIBUTE_UNUSED
,
91 HOST_WIDE_INT c ATTRIBUTE_UNUSED
,
92 tree d ATTRIBUTE_UNUSED
)
98 hook_bool_constcharptr_size_t_false (const char *a ATTRIBUTE_UNUSED
,
99 size_t b ATTRIBUTE_UNUSED
)
105 hook_bool_size_t_constcharptr_int_true (size_t a ATTRIBUTE_UNUSED
,
106 const char *b ATTRIBUTE_UNUSED
,
107 int c ATTRIBUTE_UNUSED
)
113 default_can_output_mi_thunk_no_vcall (tree a ATTRIBUTE_UNUSED
,
114 HOST_WIDE_INT b ATTRIBUTE_UNUSED
,
116 tree d ATTRIBUTE_UNUSED
)
122 hook_int_tree_0 (tree a ATTRIBUTE_UNUSED
)
127 /* ??? Used for comp_type_attributes, which ought to return bool. */
129 hook_int_tree_tree_1 (tree a ATTRIBUTE_UNUSED
, tree b ATTRIBUTE_UNUSED
)
135 hook_int_rtx_0 (rtx a ATTRIBUTE_UNUSED
)
141 hook_int_size_t_constcharptr_int_0 (size_t a ATTRIBUTE_UNUSED
,
142 const char *b ATTRIBUTE_UNUSED
,
143 int c ATTRIBUTE_UNUSED
)
149 hook_uint_uint_constcharptrptr_0 (unsigned int a ATTRIBUTE_UNUSED
,
150 const char **b ATTRIBUTE_UNUSED
)
156 hook_void_tree (tree a ATTRIBUTE_UNUSED
)
161 hook_void_constcharptr (const char *a ATTRIBUTE_UNUSED
)
166 hook_void_tree_treeptr (tree a ATTRIBUTE_UNUSED
, tree
*b ATTRIBUTE_UNUSED
)
171 hook_bool_tree_false (tree a ATTRIBUTE_UNUSED
)
177 hook_bool_tree_true (tree a ATTRIBUTE_UNUSED
)
183 hook_bool_tree_tree_false (tree a ATTRIBUTE_UNUSED
, tree b ATTRIBUTE_UNUSED
)
189 hook_bool_rtx_false (rtx a ATTRIBUTE_UNUSED
)
195 hook_bool_uintp_uintp_false (unsigned int *a ATTRIBUTE_UNUSED
,
196 unsigned int *b ATTRIBUTE_UNUSED
)
202 hook_bool_rtx_int_int_intp_false (rtx a ATTRIBUTE_UNUSED
,
203 int b ATTRIBUTE_UNUSED
,
204 int c ATTRIBUTE_UNUSED
,
205 int *d ATTRIBUTE_UNUSED
)
210 /* Generic hook that takes an rtx and returns it. */
212 hook_rtx_rtx_identity (rtx x
)
217 /* Generic hook that takes an rtx and returns NULL_RTX. */
219 hook_rtx_rtx_null (rtx x ATTRIBUTE_UNUSED
)
224 /* Generic hook that takes a tree and an int and returns NULL_RTX. */
226 hook_rtx_tree_int_null (tree a ATTRIBUTE_UNUSED
, int b ATTRIBUTE_UNUSED
)
231 /* Generic hook that takes three trees and returns the last one as is. */
233 hook_tree_tree_tree_tree_3rd_identity (tree a ATTRIBUTE_UNUSED
,
234 tree b ATTRIBUTE_UNUSED
, tree c
)
239 /* Generic hook that takes a tree and returns a NULL string. */
241 hook_constcharptr_tree_null (tree t ATTRIBUTE_UNUSED
)
247 hook_tree_tree_tree_bool_null (tree t0 ATTRIBUTE_UNUSED
, tree t1 ATTRIBUTE_UNUSED
,
248 bool ignore ATTRIBUTE_UNUSED
)