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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [hooks.c] - Blame information for rev 830

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1 684 jeremybenn 
/* General-purpose hooks.
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   Copyright (C) 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010, 2011
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   Free Software Foundation, Inc.
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5 
   This program is free software; you can redistribute it and/or modify it
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   under the terms of the GNU General Public License as published by the
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   Free Software Foundation; either version 3, or (at your option) any
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   later version.
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10 
   This program is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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   GNU General Public License for more details.
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15 
   You should have received a copy of the GNU General Public License
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   along with this program; see the file COPYING3.  If not see
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   <http://www.gnu.org/licenses/>.
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19 
   In other words, you are welcome to use, share and improve this program.
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   You are forbidden to forbid anyone else to use, share and improve
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   what you give them.   Help stamp out software-hoarding!  */
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/* This file contains generic hooks that can be used as defaults for
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   target or language-dependent hook initializers.  */
25 
 
26 
#include "config.h"
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#include "system.h"
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#include "coretypes.h"
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#include "tm.h"
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#include "hooks.h"
31 
 
32 
/* Generic hook that does absolutely zappo.  */
33 
void
34 
hook_void_void (void)
35 
{
36 
}
37 
 
38 
/* Generic hook that takes no arguments and returns false.  */
39 
bool
40 
hook_bool_void_false (void)
41 
{
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  return false;
43 
}
44 
 
45 
/* Generic hook that takes no arguments and returns true.  */
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bool
47 
hook_bool_void_true (void)
48 
{
49 
  return true;
50 
}
51 
 
52 
/* Generic hook that takes (bool) and returns false.  */
53 
bool
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hook_bool_bool_false (bool a ATTRIBUTE_UNUSED)
55 
{
56 
  return false;
57 
}
58 
 
59 
/* Generic hook that takes (bool, struct gcc_options *) and returns false.  */
60 
bool
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hook_bool_bool_gcc_optionsp_false (bool a ATTRIBUTE_UNUSED,
62 
                                   struct gcc_options *opts ATTRIBUTE_UNUSED)
63 
{
64 
  return false;
65 
}
66 
 
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 
 
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 
 
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 
 
88 
/* Generic hook that takes (enum machine_mode, const_rtx) and returns false.  */
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bool
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hook_bool_mode_const_rtx_false (enum machine_mode mode ATTRIBUTE_UNUSED,
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                                const_rtx value ATTRIBUTE_UNUSED)
92 
{
93 
  return false;
94 
}
95 
 
96 
/* Generic hook that takes (enum machine_mode, const_rtx) and returns true.  */
97 
bool
98 
hook_bool_mode_const_rtx_true (enum machine_mode mode ATTRIBUTE_UNUSED,
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                               const_rtx value ATTRIBUTE_UNUSED)
100 
{
101 
  return true;
102 
}
103 
 
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,
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                          rtx value ATTRIBUTE_UNUSED)
108 
{
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  return false;
110 
}
111 
 
112 
/* Generic hook that takes (enum machine_mode, rtx) and returns true.  */
113 
bool
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hook_bool_mode_rtx_true (enum machine_mode mode ATTRIBUTE_UNUSED,
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                         rtx value ATTRIBUTE_UNUSED)
116 
{
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  return true;
118 
}
119 
 
120 
/* Generic hook that takes (enum machine_mode, unsigned HOST_WIDE_INT)
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   and returns false.  */
122 
bool
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hook_bool_mode_uhwi_false (enum machine_mode mode ATTRIBUTE_UNUSED,
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                           unsigned HOST_WIDE_INT value ATTRIBUTE_UNUSED)
125 
{
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  return false;
127 
}
128 
 
129 
/* Generic hook that takes (FILE *, const char *) and does nothing.  */
130 
void
131 
hook_void_FILEptr_constcharptr (FILE *a ATTRIBUTE_UNUSED, const char *b ATTRIBUTE_UNUSED)
132 
{
133 
}
134 
 
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 
 
143 
/* Used for the TARGET_ASM_CAN_OUTPUT_MI_THUNK hook.  */
144 
bool
145 
hook_bool_const_tree_hwi_hwi_const_tree_false (const_tree a ATTRIBUTE_UNUSED,
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                                               HOST_WIDE_INT b ATTRIBUTE_UNUSED,
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                                               HOST_WIDE_INT c ATTRIBUTE_UNUSED,
148 
                                               const_tree d ATTRIBUTE_UNUSED)
149 
{
150 
  return false;
151 
}
152 
 
153 
bool
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)
158 
{
159 
  return true;
160 
}
161 
 
162 
bool
163 
default_can_output_mi_thunk_no_vcall (const_tree a ATTRIBUTE_UNUSED,
164 
                                      HOST_WIDE_INT b ATTRIBUTE_UNUSED,
165 
                                      HOST_WIDE_INT c,
166 
                                      const_tree d ATTRIBUTE_UNUSED)
167 
{
168 
  return c == 0;
169 
}
170 
 
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 
 
178 
int
179 
hook_int_const_tree_0 (const_tree a ATTRIBUTE_UNUSED)
180 
{
181 
  return 0;
182 
}
183 
 
184 
/* ??? Used for comp_type_attributes, which ought to return bool.  */
185 
int
186 
hook_int_const_tree_const_tree_1 (const_tree a ATTRIBUTE_UNUSED, const_tree b ATTRIBUTE_UNUSED)
187 
{
188 
  return 1;
189 
}
190 
 
191 
int
192 
hook_int_rtx_0 (rtx a ATTRIBUTE_UNUSED)
193 
{
194 
  return 0;
195 
}
196 
 
197 
int
198 
hook_int_rtx_bool_0 (rtx a ATTRIBUTE_UNUSED, bool b ATTRIBUTE_UNUSED)
199 
{
200 
  return 0;
201 
}
202 
 
203 
unsigned int
204 
hook_uint_void_0 (void)
205 
{
206 
  return 0;
207 
}
208 
 
209 
void
210 
hook_void_tree (tree a ATTRIBUTE_UNUSED)
211 
{
212 
}
213 
 
214 
void
215 
hook_void_constcharptr (const char *a ATTRIBUTE_UNUSED)
216 
{
217 
}
218 
 
219 
void
220 
hook_void_tree_treeptr (tree a ATTRIBUTE_UNUSED, tree *b ATTRIBUTE_UNUSED)
221 
{
222 
}
223 
 
224 
void
225 
hook_void_int_int (int a ATTRIBUTE_UNUSED, int b ATTRIBUTE_UNUSED)
226 
{
227 
}
228 
 
229 
bool
230 
hook_bool_tree_false (tree a ATTRIBUTE_UNUSED)
231 
{
232 
  return false;
233 
}
234 
 
235 
bool
236 
hook_bool_const_tree_false (const_tree a ATTRIBUTE_UNUSED)
237 
{
238 
  return false;
239 
}
240 
 
241 
bool
242 
hook_bool_tree_true (tree a ATTRIBUTE_UNUSED)
243 
{
244 
  return true;
245 
}
246 
 
247 
bool
248 
hook_bool_const_tree_true (const_tree a ATTRIBUTE_UNUSED)
249 
{
250 
  return true;
251 
}
252 
 
253 
bool
254 
hook_bool_tree_tree_false (tree a ATTRIBUTE_UNUSED, tree b ATTRIBUTE_UNUSED)
255 
{
256 
  return false;
257 
}
258 
 
259 
bool
260 
hook_bool_tree_tree_true (tree a ATTRIBUTE_UNUSED, tree b ATTRIBUTE_UNUSED)
261 
{
262 
  return true;
263 
}
264 
 
265 
bool
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hook_bool_tree_bool_false (tree a ATTRIBUTE_UNUSED, bool b ATTRIBUTE_UNUSED)
267 
{
268 
  return false;
269 
}
270 
 
271 
bool
272 
hook_bool_rtx_false (rtx a ATTRIBUTE_UNUSED)
273 
{
274 
  return false;
275 
}
276 
 
277 
bool
278 
hook_bool_uintp_uintp_false (unsigned int *a ATTRIBUTE_UNUSED,
279 
                             unsigned int *b ATTRIBUTE_UNUSED)
280 
{
281 
  return false;
282 
}
283 
 
284 
bool
285 
hook_bool_rtx_int_int_int_intp_bool_false (rtx a ATTRIBUTE_UNUSED,
286 
                                           int b ATTRIBUTE_UNUSED,
287 
                                           int c ATTRIBUTE_UNUSED,
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                                           int d ATTRIBUTE_UNUSED,
289 
                                           int *e ATTRIBUTE_UNUSED,
290 
                                           bool speed_p ATTRIBUTE_UNUSED)
291 
{
292 
  return false;
293 
}
294 
 
295 
/* Generic hook that takes an rtx and returns it.  */
296 
rtx
297 
hook_rtx_rtx_identity (rtx x)
298 
{
299 
  return x;
300 
}
301 
 
302 
/* Generic hook that takes an rtx and returns NULL_RTX.  */
303 
rtx
304 
hook_rtx_rtx_null (rtx x ATTRIBUTE_UNUSED)
305 
{
306 
  return NULL;
307 
}
308 
 
309 
/* Generic hook that takes a tree and an int and returns NULL_RTX.  */
310 
rtx
311 
hook_rtx_tree_int_null (tree a ATTRIBUTE_UNUSED, int b ATTRIBUTE_UNUSED)
312 
{
313 
  return NULL;
314 
}
315 
 
316 
/* Generic hook that takes three trees and returns the last one as is.  */
317 
tree
318 
hook_tree_tree_tree_tree_3rd_identity (tree a ATTRIBUTE_UNUSED,
319 
                                       tree b ATTRIBUTE_UNUSED, tree c)
320 
{
321 
  return c;
322 
}
323 
 
324 
/* Generic hook that takes a tree and returns a NULL string.  */
325 
const char *
326 
hook_constcharptr_const_tree_null (const_tree t ATTRIBUTE_UNUSED)
327 
{
328 
  return NULL;
329 
}
330 
 
331 
tree
332 
hook_tree_tree_int_treep_bool_null (tree t0 ATTRIBUTE_UNUSED,
333 
                                    int i ATTRIBUTE_UNUSED,
334 
                                    tree *p ATTRIBUTE_UNUSED,
335 
                                    bool ignore ATTRIBUTE_UNUSED)
336 
{
337 
  return NULL;
338 
}
339 
 
340 
tree
341 
hook_tree_tree_tree_null (tree t0 ATTRIBUTE_UNUSED, tree t1 ATTRIBUTE_UNUSED)
342 
{
343 
  return NULL;
344 
}
345 
 
346 
tree
347 
hook_tree_tree_tree_tree_null (tree t0 ATTRIBUTE_UNUSED,
348 
                               tree t1 ATTRIBUTE_UNUSED,
349 
                               tree t2 ATTRIBUTE_UNUSED)
350 
{
351 
  return NULL;
352 
}
353 
 
354 
/* Generic hook that takes a rtx and returns a NULL string.  */
355 
const char *
356 
hook_constcharptr_const_rtx_null (const_rtx r ATTRIBUTE_UNUSED)
357 
{
358 
  return NULL;
359 
}
360 
 
361 
const char *
362 
hook_constcharptr_const_tree_const_tree_null (const_tree t0 ATTRIBUTE_UNUSED,
363 
                                              const_tree t1 ATTRIBUTE_UNUSED)
364 
{
365 
  return NULL;
366 
}
367 
 
368 
const char *
369 
hook_constcharptr_int_const_tree_null (int i ATTRIBUTE_UNUSED,
370 
                                       const_tree t0 ATTRIBUTE_UNUSED)
371 
{
372 
  return NULL;
373 
}
374 
 
375 
const char *
376 
hook_constcharptr_int_const_tree_const_tree_null (int i ATTRIBUTE_UNUSED,
377 
                                                  const_tree t0 ATTRIBUTE_UNUSED,
378 
                                                  const_tree t1 ATTRIBUTE_UNUSED)
379 
{
380 
  return NULL;
381 
}
382 
 
383 
/* Generic hook that takes a const_tree and returns NULL_TREE.  */
384 
tree
385 
hook_tree_const_tree_null (const_tree t ATTRIBUTE_UNUSED)
386 
{
387 
  return NULL;
388 
}
389 
 
390 
/* Generic hook that takes a rtx and an int and returns a bool.  */
391 
 
392 
bool
393 
hook_bool_rtx_int_false (rtx insn ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED)
394 
{
395 
  return false;
396 
}
397 
 
398 
/* Generic hook that takes a rtx and an int and returns void.  */
399 
 
400 
void
401 
hook_void_rtx_int (rtx insn ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED)
402 
{
403 
}
404 
 
405 
/* Generic hook that takes a struct gcc_options * and returns void.  */
406 
 
407 
void
408 
hook_void_gcc_optionsp (struct gcc_options *opts ATTRIBUTE_UNUSED)
409 
{
410 
}

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