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Commit | Line | Data |
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e4ec2cac | 1 | /* General-purpose hooks. |
96e45421 | 2 | Copyright (C) 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010, 2011 |
66647d44 | 3 | Free Software Foundation, Inc. |
e4ec2cac | 4 | |
9dcd6f09 NC |
5 | This program is free software; you can redistribute it and/or modify it |
6 | under the terms of the GNU General Public License as published by the | |
7 | Free Software Foundation; either version 3, or (at your option) any | |
8 | later version. | |
e4ec2cac | 9 | |
9dcd6f09 NC |
10 | This program is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
e4ec2cac | 14 | |
9dcd6f09 NC |
15 | You should have received a copy of the GNU General Public License |
16 | along with this program; see the file COPYING3. If not see | |
b8698a0f | 17 | <http://www.gnu.org/licenses/>. |
e4ec2cac | 18 | |
9dcd6f09 NC |
19 | In other words, you are welcome to use, share and improve this program. |
20 | You are forbidden to forbid anyone else to use, share and improve | |
21 | what you give them. Help stamp out software-hoarding! */ | |
e4ec2cac AO |
22 | |
23 | /* This file contains generic hooks that can be used as defaults for | |
24 | target or language-dependent hook initializers. */ | |
25 | ||
26 | #include "config.h" | |
27 | #include "system.h" | |
4977bab6 ZW |
28 | #include "coretypes.h" |
29 | #include "tm.h" | |
e4ec2cac AO |
30 | #include "hooks.h" |
31 | ||
e5f3b786 NB |
32 | /* Generic hook that does absolutely zappo. */ |
33 | void | |
1d088dee | 34 | hook_void_void (void) |
e5f3b786 NB |
35 | { |
36 | } | |
37 | ||
e4ec2cac AO |
38 | /* Generic hook that takes no arguments and returns false. */ |
39 | bool | |
1d088dee | 40 | hook_bool_void_false (void) |
ae46c4e0 RH |
41 | { |
42 | return false; | |
43 | } | |
fb49053f | 44 | |
af287697 MM |
45 | /* Generic hook that takes no arguments and returns true. */ |
46 | bool | |
47 | hook_bool_void_true (void) | |
48 | { | |
49 | return true; | |
50 | } | |
51 | ||
fe3ad572 SC |
52 | /* Generic hook that takes (bool) and returns false. */ |
53 | bool | |
54 | hook_bool_bool_false (bool a ATTRIBUTE_UNUSED) | |
55 | { | |
56 | return false; | |
57 | } | |
58 | ||
d5fabb58 JM |
59 | /* Generic hook that takes (bool, struct gcc_options *) and returns false. */ |
60 | bool | |
61 | hook_bool_bool_gcc_optionsp_false (bool a ATTRIBUTE_UNUSED, | |
62 | struct gcc_options *opts ATTRIBUTE_UNUSED) | |
63 | { | |
64 | return false; | |
65 | } | |
66 | ||
7b5cbb57 AS |
67 | /* Generic hook that takes const int, const int) and returns true. */ |
68 | bool hook_bool_const_int_const_int_true (const int a ATTRIBUTE_UNUSED, | |
69 | const int b ATTRIBUTE_UNUSED) | |
70 | { | |
71 | return true; | |
72 | } | |
73 | ||
f676971a EC |
74 | /* Generic hook that takes (enum machine_mode) and returns false. */ |
75 | bool | |
76 | hook_bool_mode_false (enum machine_mode mode ATTRIBUTE_UNUSED) | |
77 | { | |
78 | return false; | |
79 | } | |
80 | ||
42db504c SB |
81 | /* Generic hook that takes (enum machine_mode) and returns true. */ |
82 | bool | |
83 | hook_bool_mode_true (enum machine_mode mode ATTRIBUTE_UNUSED) | |
84 | { | |
85 | return true; | |
86 | } | |
87 | ||
fbbf66e7 | 88 | /* Generic hook that takes (enum machine_mode, const_rtx) and returns false. */ |
aacd3885 | 89 | bool |
3101faab KG |
90 | hook_bool_mode_const_rtx_false (enum machine_mode mode ATTRIBUTE_UNUSED, |
91 | const_rtx value ATTRIBUTE_UNUSED) | |
aacd3885 RS |
92 | { |
93 | return false; | |
94 | } | |
95 | ||
fbbf66e7 | 96 | /* Generic hook that takes (enum machine_mode, const_rtx) and returns true. */ |
1d3dbd99 | 97 | bool |
3101faab KG |
98 | hook_bool_mode_const_rtx_true (enum machine_mode mode ATTRIBUTE_UNUSED, |
99 | const_rtx value ATTRIBUTE_UNUSED) | |
1d3dbd99 RS |
100 | { |
101 | return true; | |
102 | } | |
103 | ||
fbbf66e7 RS |
104 | /* Generic hook that takes (enum machine_mode, rtx) and returns false. */ |
105 | bool | |
106 | hook_bool_mode_rtx_false (enum machine_mode mode ATTRIBUTE_UNUSED, | |
107 | rtx value ATTRIBUTE_UNUSED) | |
108 | { | |
109 | return false; | |
110 | } | |
111 | ||
1a627b35 RS |
112 | /* Generic hook that takes (enum machine_mode, rtx) and returns true. */ |
113 | bool | |
114 | hook_bool_mode_rtx_true (enum machine_mode mode ATTRIBUTE_UNUSED, | |
115 | rtx value ATTRIBUTE_UNUSED) | |
116 | { | |
117 | return true; | |
118 | } | |
119 | ||
0f6d54f7 RS |
120 | /* Generic hook that takes (enum machine_mode, unsigned HOST_WIDE_INT) |
121 | and returns false. */ | |
122 | bool | |
123 | hook_bool_mode_uhwi_false (enum machine_mode mode ATTRIBUTE_UNUSED, | |
124 | unsigned HOST_WIDE_INT value ATTRIBUTE_UNUSED) | |
125 | { | |
126 | return false; | |
127 | } | |
128 | ||
5eb99654 KG |
129 | /* Generic hook that takes (FILE *, const char *) and does nothing. */ |
130 | void | |
1d088dee | 131 | hook_void_FILEptr_constcharptr (FILE *a ATTRIBUTE_UNUSED, const char *b ATTRIBUTE_UNUSED) |
5eb99654 KG |
132 | { |
133 | } | |
3961e8fe | 134 | |
e1267133 AS |
135 | /* Generic hook that takes (FILE *, rtx) and returns false. */ |
136 | bool | |
137 | hook_bool_FILEptr_rtx_false (FILE *a ATTRIBUTE_UNUSED, | |
138 | rtx b ATTRIBUTE_UNUSED) | |
139 | { | |
140 | return false; | |
141 | } | |
142 | ||
3961e8fe RH |
143 | /* Used for the TARGET_ASM_CAN_OUTPUT_MI_THUNK hook. */ |
144 | bool | |
3101faab KG |
145 | hook_bool_const_tree_hwi_hwi_const_tree_false (const_tree a ATTRIBUTE_UNUSED, |
146 | HOST_WIDE_INT b ATTRIBUTE_UNUSED, | |
147 | HOST_WIDE_INT c ATTRIBUTE_UNUSED, | |
148 | const_tree d ATTRIBUTE_UNUSED) | |
3961e8fe RH |
149 | { |
150 | return false; | |
151 | } | |
152 | ||
153 | bool | |
3101faab KG |
154 | hook_bool_const_tree_hwi_hwi_const_tree_true (const_tree a ATTRIBUTE_UNUSED, |
155 | HOST_WIDE_INT b ATTRIBUTE_UNUSED, | |
156 | HOST_WIDE_INT c ATTRIBUTE_UNUSED, | |
157 | const_tree d ATTRIBUTE_UNUSED) | |
3961e8fe RH |
158 | { |
159 | return true; | |
160 | } | |
161 | ||
162 | bool | |
3101faab | 163 | default_can_output_mi_thunk_no_vcall (const_tree a ATTRIBUTE_UNUSED, |
1d088dee AJ |
164 | HOST_WIDE_INT b ATTRIBUTE_UNUSED, |
165 | HOST_WIDE_INT c, | |
3101faab | 166 | const_tree d ATTRIBUTE_UNUSED) |
3961e8fe RH |
167 | { |
168 | return c == 0; | |
169 | } | |
7b1bd3c5 | 170 | |
df7b0cc4 EI |
171 | int |
172 | hook_int_uint_mode_1 (unsigned int a ATTRIBUTE_UNUSED, | |
173 | enum machine_mode b ATTRIBUTE_UNUSED) | |
174 | { | |
175 | return 1; | |
176 | } | |
177 | ||
a1c496cb | 178 | int |
3101faab | 179 | hook_int_const_tree_0 (const_tree a ATTRIBUTE_UNUSED) |
a1c496cb EC |
180 | { |
181 | return 0; | |
182 | } | |
183 | ||
7b1bd3c5 RH |
184 | /* ??? Used for comp_type_attributes, which ought to return bool. */ |
185 | int | |
3101faab | 186 | hook_int_const_tree_const_tree_1 (const_tree a ATTRIBUTE_UNUSED, const_tree b ATTRIBUTE_UNUSED) |
7b1bd3c5 RH |
187 | { |
188 | return 1; | |
189 | } | |
190 | ||
dcefdf67 | 191 | int |
1d088dee | 192 | hook_int_rtx_0 (rtx a ATTRIBUTE_UNUSED) |
dcefdf67 RH |
193 | { |
194 | return 0; | |
195 | } | |
196 | ||
f40751dd JH |
197 | int |
198 | hook_int_rtx_bool_0 (rtx a ATTRIBUTE_UNUSED, bool b ATTRIBUTE_UNUSED) | |
199 | { | |
200 | return 0; | |
201 | } | |
202 | ||
b413068c OE |
203 | int |
204 | hook_int_rtx_mode_as_bool_0 (rtx, enum machine_mode, addr_space_t, bool) | |
205 | { | |
206 | return 0; | |
207 | } | |
208 | ||
b86f6cd9 | 209 | unsigned int |
7a9bf9a4 | 210 | hook_uint_void_0 (void) |
b86f6cd9 NB |
211 | { |
212 | return 0; | |
213 | } | |
214 | ||
7b1bd3c5 | 215 | void |
1d088dee | 216 | hook_void_tree (tree a ATTRIBUTE_UNUSED) |
7b1bd3c5 RH |
217 | { |
218 | } | |
219 | ||
94d1613b | 220 | void |
8e3e233b | 221 | hook_void_constcharptr (const char *a ATTRIBUTE_UNUSED) |
94d1613b MS |
222 | { |
223 | } | |
224 | ||
7b1bd3c5 | 225 | void |
1d088dee | 226 | hook_void_tree_treeptr (tree a ATTRIBUTE_UNUSED, tree *b ATTRIBUTE_UNUSED) |
7b1bd3c5 RH |
227 | { |
228 | } | |
229 | ||
fac0f722 JM |
230 | void |
231 | hook_void_int_int (int a ATTRIBUTE_UNUSED, int b ATTRIBUTE_UNUSED) | |
232 | { | |
233 | } | |
234 | ||
7b1bd3c5 | 235 | bool |
1d088dee | 236 | hook_bool_tree_false (tree a ATTRIBUTE_UNUSED) |
7b1bd3c5 RH |
237 | { |
238 | return false; | |
239 | } | |
3a04ff64 | 240 | |
ac7d7749 KG |
241 | bool |
242 | hook_bool_const_tree_false (const_tree a ATTRIBUTE_UNUSED) | |
243 | { | |
244 | return false; | |
245 | } | |
246 | ||
c6e8c921 GK |
247 | bool |
248 | hook_bool_tree_true (tree a ATTRIBUTE_UNUSED) | |
249 | { | |
250 | return true; | |
251 | } | |
252 | ||
586de218 KG |
253 | bool |
254 | hook_bool_const_tree_true (const_tree a ATTRIBUTE_UNUSED) | |
255 | { | |
256 | return true; | |
257 | } | |
258 | ||
4977bab6 | 259 | bool |
1d088dee | 260 | hook_bool_tree_tree_false (tree a ATTRIBUTE_UNUSED, tree b ATTRIBUTE_UNUSED) |
4977bab6 ZW |
261 | { |
262 | return false; | |
263 | } | |
264 | ||
faf63e39 RH |
265 | bool |
266 | hook_bool_tree_tree_true (tree a ATTRIBUTE_UNUSED, tree b ATTRIBUTE_UNUSED) | |
267 | { | |
268 | return true; | |
269 | } | |
270 | ||
953ff289 DN |
271 | bool |
272 | hook_bool_tree_bool_false (tree a ATTRIBUTE_UNUSED, bool b ATTRIBUTE_UNUSED) | |
273 | { | |
274 | return false; | |
275 | } | |
276 | ||
78e4f1ad UB |
277 | bool |
278 | hook_bool_rtx_true (rtx a ATTRIBUTE_UNUSED) | |
279 | { | |
280 | return true; | |
281 | } | |
282 | ||
3a04ff64 | 283 | bool |
1d088dee | 284 | hook_bool_rtx_false (rtx a ATTRIBUTE_UNUSED) |
3a04ff64 RH |
285 | { |
286 | return false; | |
287 | } | |
3c50106f | 288 | |
e129d93a ILT |
289 | bool |
290 | hook_bool_uintp_uintp_false (unsigned int *a ATTRIBUTE_UNUSED, | |
291 | unsigned int *b ATTRIBUTE_UNUSED) | |
292 | { | |
293 | return false; | |
294 | } | |
295 | ||
3c50106f | 296 | bool |
68f932c4 RS |
297 | hook_bool_rtx_int_int_int_intp_bool_false (rtx a ATTRIBUTE_UNUSED, |
298 | int b ATTRIBUTE_UNUSED, | |
299 | int c ATTRIBUTE_UNUSED, | |
300 | int d ATTRIBUTE_UNUSED, | |
301 | int *e ATTRIBUTE_UNUSED, | |
302 | bool speed_p ATTRIBUTE_UNUSED) | |
3c50106f RH |
303 | { |
304 | return false; | |
305 | } | |
306 | ||
7daebb7a RS |
307 | /* Generic hook that takes an rtx and returns it. */ |
308 | rtx | |
1d088dee | 309 | hook_rtx_rtx_identity (rtx x) |
7daebb7a RS |
310 | { |
311 | return x; | |
312 | } | |
313 | ||
96714395 AH |
314 | /* Generic hook that takes an rtx and returns NULL_RTX. */ |
315 | rtx | |
1d088dee | 316 | hook_rtx_rtx_null (rtx x ATTRIBUTE_UNUSED) |
96714395 | 317 | { |
c6e8c921 GK |
318 | return NULL; |
319 | } | |
320 | ||
321 | /* Generic hook that takes a tree and an int and returns NULL_RTX. */ | |
322 | rtx | |
323 | hook_rtx_tree_int_null (tree a ATTRIBUTE_UNUSED, int b ATTRIBUTE_UNUSED) | |
324 | { | |
325 | return NULL; | |
96714395 | 326 | } |
18c81520 | 327 | |
61158923 | 328 | /* Generic hook that takes three trees and returns the last one as is. */ |
67dfe110 | 329 | tree |
61158923 HPN |
330 | hook_tree_tree_tree_tree_3rd_identity (tree a ATTRIBUTE_UNUSED, |
331 | tree b ATTRIBUTE_UNUSED, tree c) | |
67dfe110 | 332 | { |
61158923 | 333 | return c; |
67dfe110 | 334 | } |
f18eca82 ZL |
335 | |
336 | /* Generic hook that takes a tree and returns a NULL string. */ | |
337 | const char * | |
3101faab | 338 | hook_constcharptr_const_tree_null (const_tree t ATTRIBUTE_UNUSED) |
f18eca82 ZL |
339 | { |
340 | return NULL; | |
341 | } | |
55e74277 | 342 | |
6b889d89 | 343 | tree |
f311c3b4 NF |
344 | hook_tree_tree_int_treep_bool_null (tree t0 ATTRIBUTE_UNUSED, |
345 | int i ATTRIBUTE_UNUSED, | |
346 | tree *p ATTRIBUTE_UNUSED, | |
347 | bool ignore ATTRIBUTE_UNUSED) | |
55e74277 PB |
348 | { |
349 | return NULL; | |
350 | } | |
e7e64a25 | 351 | |
953ff289 DN |
352 | tree |
353 | hook_tree_tree_tree_null (tree t0 ATTRIBUTE_UNUSED, tree t1 ATTRIBUTE_UNUSED) | |
354 | { | |
355 | return NULL; | |
356 | } | |
357 | ||
a68ab351 JJ |
358 | tree |
359 | hook_tree_tree_tree_tree_null (tree t0 ATTRIBUTE_UNUSED, | |
360 | tree t1 ATTRIBUTE_UNUSED, | |
361 | tree t2 ATTRIBUTE_UNUSED) | |
362 | { | |
363 | return NULL; | |
364 | } | |
365 | ||
e7e64a25 AS |
366 | /* Generic hook that takes a rtx and returns a NULL string. */ |
367 | const char * | |
3101faab | 368 | hook_constcharptr_const_rtx_null (const_rtx r ATTRIBUTE_UNUSED) |
e7e64a25 AS |
369 | { |
370 | return NULL; | |
371 | } | |
4de67c26 JM |
372 | |
373 | const char * | |
3101faab KG |
374 | hook_constcharptr_const_tree_const_tree_null (const_tree t0 ATTRIBUTE_UNUSED, |
375 | const_tree t1 ATTRIBUTE_UNUSED) | |
4de67c26 JM |
376 | { |
377 | return NULL; | |
378 | } | |
379 | ||
380 | const char * | |
3101faab KG |
381 | hook_constcharptr_int_const_tree_null (int i ATTRIBUTE_UNUSED, |
382 | const_tree t0 ATTRIBUTE_UNUSED) | |
4de67c26 JM |
383 | { |
384 | return NULL; | |
385 | } | |
386 | ||
387 | const char * | |
3101faab KG |
388 | hook_constcharptr_int_const_tree_const_tree_null (int i ATTRIBUTE_UNUSED, |
389 | const_tree t0 ATTRIBUTE_UNUSED, | |
390 | const_tree t1 ATTRIBUTE_UNUSED) | |
4de67c26 JM |
391 | { |
392 | return NULL; | |
393 | } | |
40449a90 SL |
394 | |
395 | /* Generic hook that takes a const_tree and returns NULL_TREE. */ | |
396 | tree | |
397 | hook_tree_const_tree_null (const_tree t ATTRIBUTE_UNUSED) | |
398 | { | |
399 | return NULL; | |
400 | } | |
7942e47e RY |
401 | |
402 | /* Generic hook that takes a rtx and an int and returns a bool. */ | |
403 | ||
404 | bool | |
405 | hook_bool_rtx_int_false (rtx insn ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED) | |
406 | { | |
407 | return false; | |
408 | } | |
409 | ||
410 | /* Generic hook that takes a rtx and an int and returns void. */ | |
411 | ||
412 | void | |
413 | hook_void_rtx_int (rtx insn ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED) | |
414 | { | |
415 | } | |
7e4aae92 JM |
416 | |
417 | /* Generic hook that takes a struct gcc_options * and returns void. */ | |
418 | ||
419 | void | |
420 | hook_void_gcc_optionsp (struct gcc_options *opts ATTRIBUTE_UNUSED) | |
421 | { | |
422 | } |