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d7f09764 | 1 | /* Language-dependent hooks for LTO. |
d1e082c2 | 2 | Copyright (C) 2009-2013 Free Software Foundation, Inc. |
d7f09764 DN |
3 | Contributed by CodeSourcery, Inc. |
4 | ||
5 | This file is part of GCC. | |
6 | ||
7 | GCC is free software; you can redistribute it and/or modify it under | |
8 | the terms of the GNU General Public License as published by the Free | |
9 | Software Foundation; either version 3, or (at your option) any later | |
10 | version. | |
11 | ||
12 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
13 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 | for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GCC; see the file COPYING3. If not see | |
19 | <http://www.gnu.org/licenses/>. */ | |
20 | ||
21 | #include "config.h" | |
22 | #include "system.h" | |
23 | #include "coretypes.h" | |
24 | #include "flags.h" | |
25 | #include "tm.h" | |
26 | #include "tree.h" | |
d8a2d370 DN |
27 | #include "stringpool.h" |
28 | #include "stor-layout.h" | |
d7f09764 DN |
29 | #include "target.h" |
30 | #include "langhooks.h" | |
31 | #include "langhooks-def.h" | |
32 | #include "debug.h" | |
33 | #include "lto-tree.h" | |
34 | #include "lto.h" | |
35 | #include "tree-inline.h" | |
2fb9a547 AM |
36 | #include "basic-block.h" |
37 | #include "tree-ssa-alias.h" | |
38 | #include "internal-fn.h" | |
39 | #include "gimple-expr.h" | |
40 | #include "is-a.h" | |
d7f09764 | 41 | #include "gimple.h" |
718f9c0f | 42 | #include "diagnostic-core.h" |
d7f09764 | 43 | #include "toplev.h" |
237d6259 | 44 | #include "lto-streamer.h" |
939b37da | 45 | #include "cilk.h" |
d7f09764 | 46 | |
21fa2faf RG |
47 | static tree lto_type_for_size (unsigned, int); |
48 | ||
d7f09764 | 49 | static tree handle_noreturn_attribute (tree *, tree, tree, int, bool *); |
0d6e14fd | 50 | static tree handle_leaf_attribute (tree *, tree, tree, int, bool *); |
d7f09764 DN |
51 | static tree handle_const_attribute (tree *, tree, tree, int, bool *); |
52 | static tree handle_malloc_attribute (tree *, tree, tree, int, bool *); | |
53 | static tree handle_pure_attribute (tree *, tree, tree, int, bool *); | |
54 | static tree handle_novops_attribute (tree *, tree, tree, int, bool *); | |
55 | static tree handle_nonnull_attribute (tree *, tree, tree, int, bool *); | |
56 | static tree handle_nothrow_attribute (tree *, tree, tree, int, bool *); | |
57 | static tree handle_sentinel_attribute (tree *, tree, tree, int, bool *); | |
58 | static tree handle_type_generic_attribute (tree *, tree, tree, int, bool *); | |
57ac2606 | 59 | static tree handle_transaction_pure_attribute (tree *, tree, tree, int, bool *); |
09228fef | 60 | static tree handle_returns_twice_attribute (tree *, tree, tree, int, bool *); |
c8218030 UB |
61 | static tree ignore_attribute (tree *, tree, tree, int, bool *); |
62 | ||
d7f09764 | 63 | static tree handle_format_attribute (tree *, tree, tree, int, bool *); |
e384e6b5 | 64 | static tree handle_fnspec_attribute (tree *, tree, tree, int, bool *); |
d7f09764 DN |
65 | static tree handle_format_arg_attribute (tree *, tree, tree, int, bool *); |
66 | ||
67 | /* Table of machine-independent attributes supported in GIMPLE. */ | |
68 | const struct attribute_spec lto_attribute_table[] = | |
69 | { | |
62d784f7 KT |
70 | /* { name, min_len, max_len, decl_req, type_req, fn_type_req, handler, |
71 | do_diagnostic } */ | |
d7f09764 | 72 | { "noreturn", 0, 0, true, false, false, |
62d784f7 | 73 | handle_noreturn_attribute, false }, |
0d6e14fd | 74 | { "leaf", 0, 0, true, false, false, |
62d784f7 | 75 | handle_leaf_attribute, false }, |
d7f09764 DN |
76 | /* The same comments as for noreturn attributes apply to const ones. */ |
77 | { "const", 0, 0, true, false, false, | |
62d784f7 | 78 | handle_const_attribute, false }, |
d7f09764 | 79 | { "malloc", 0, 0, true, false, false, |
62d784f7 | 80 | handle_malloc_attribute, false }, |
d7f09764 | 81 | { "pure", 0, 0, true, false, false, |
62d784f7 | 82 | handle_pure_attribute, false }, |
d7f09764 | 83 | { "no vops", 0, 0, true, false, false, |
62d784f7 | 84 | handle_novops_attribute, false }, |
d7f09764 | 85 | { "nonnull", 0, -1, false, true, true, |
62d784f7 | 86 | handle_nonnull_attribute, false }, |
d7f09764 | 87 | { "nothrow", 0, 0, true, false, false, |
62d784f7 | 88 | handle_nothrow_attribute, false }, |
09228fef JJ |
89 | { "returns_twice", 0, 0, true, false, false, |
90 | handle_returns_twice_attribute, false }, | |
d7f09764 | 91 | { "sentinel", 0, 1, false, true, true, |
62d784f7 | 92 | handle_sentinel_attribute, false }, |
d7f09764 | 93 | { "type generic", 0, 0, false, true, true, |
62d784f7 | 94 | handle_type_generic_attribute, false }, |
e384e6b5 BS |
95 | { "fn spec", 1, 1, false, true, true, |
96 | handle_fnspec_attribute, false }, | |
57ac2606 AH |
97 | { "transaction_pure", 0, 0, false, true, true, |
98 | handle_transaction_pure_attribute, false }, | |
c8218030 UB |
99 | /* For internal use only. The leading '*' both prevents its usage in |
100 | source code and signals that it may be overridden by machine tables. */ | |
101 | { "*tm regparm", 0, 0, false, true, true, | |
102 | ignore_attribute, false }, | |
62d784f7 | 103 | { NULL, 0, 0, false, false, false, NULL, false } |
d7f09764 DN |
104 | }; |
105 | ||
106 | /* Give the specifications for the format attributes, used by C and all | |
107 | descendants. */ | |
108 | ||
109 | const struct attribute_spec lto_format_attribute_table[] = | |
110 | { | |
62d784f7 KT |
111 | /* { name, min_len, max_len, decl_req, type_req, fn_type_req, handler, |
112 | affects_type_identity } */ | |
d7f09764 | 113 | { "format", 3, 3, false, true, true, |
62d784f7 | 114 | handle_format_attribute, false }, |
d7f09764 | 115 | { "format_arg", 1, 1, false, true, true, |
62d784f7 KT |
116 | handle_format_arg_attribute, false }, |
117 | { NULL, 0, 0, false, false, false, NULL, false } | |
d7f09764 DN |
118 | }; |
119 | ||
120 | enum built_in_attribute | |
121 | { | |
122 | #define DEF_ATTR_NULL_TREE(ENUM) ENUM, | |
123 | #define DEF_ATTR_INT(ENUM, VALUE) ENUM, | |
e384e6b5 | 124 | #define DEF_ATTR_STRING(ENUM, VALUE) ENUM, |
d7f09764 DN |
125 | #define DEF_ATTR_IDENT(ENUM, STRING) ENUM, |
126 | #define DEF_ATTR_TREE_LIST(ENUM, PURPOSE, VALUE, CHAIN) ENUM, | |
127 | #include "builtin-attrs.def" | |
128 | #undef DEF_ATTR_NULL_TREE | |
129 | #undef DEF_ATTR_INT | |
e384e6b5 | 130 | #undef DEF_ATTR_STRING |
d7f09764 DN |
131 | #undef DEF_ATTR_IDENT |
132 | #undef DEF_ATTR_TREE_LIST | |
133 | ATTR_LAST | |
134 | }; | |
135 | ||
136 | static GTY(()) tree built_in_attributes[(int) ATTR_LAST]; | |
137 | ||
138 | /* Builtin types. */ | |
139 | ||
140 | enum lto_builtin_type | |
141 | { | |
142 | #define DEF_PRIMITIVE_TYPE(NAME, VALUE) NAME, | |
143 | #define DEF_FUNCTION_TYPE_0(NAME, RETURN) NAME, | |
144 | #define DEF_FUNCTION_TYPE_1(NAME, RETURN, ARG1) NAME, | |
145 | #define DEF_FUNCTION_TYPE_2(NAME, RETURN, ARG1, ARG2) NAME, | |
146 | #define DEF_FUNCTION_TYPE_3(NAME, RETURN, ARG1, ARG2, ARG3) NAME, | |
147 | #define DEF_FUNCTION_TYPE_4(NAME, RETURN, ARG1, ARG2, ARG3, ARG4) NAME, | |
148 | #define DEF_FUNCTION_TYPE_5(NAME, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5) NAME, | |
149 | #define DEF_FUNCTION_TYPE_6(NAME, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, ARG6) NAME, | |
150 | #define DEF_FUNCTION_TYPE_7(NAME, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, ARG6, ARG7) NAME, | |
acf0174b | 151 | #define DEF_FUNCTION_TYPE_8(NAME, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, ARG6, ARG7, ARG8) NAME, |
d7f09764 DN |
152 | #define DEF_FUNCTION_TYPE_VAR_0(NAME, RETURN) NAME, |
153 | #define DEF_FUNCTION_TYPE_VAR_1(NAME, RETURN, ARG1) NAME, | |
154 | #define DEF_FUNCTION_TYPE_VAR_2(NAME, RETURN, ARG1, ARG2) NAME, | |
155 | #define DEF_FUNCTION_TYPE_VAR_3(NAME, RETURN, ARG1, ARG2, ARG3) NAME, | |
156 | #define DEF_FUNCTION_TYPE_VAR_4(NAME, RETURN, ARG1, ARG2, ARG3, ARG4) NAME, | |
157 | #define DEF_FUNCTION_TYPE_VAR_5(NAME, RETURN, ARG1, ARG2, ARG3, ARG4, ARG6) \ | |
158 | NAME, | |
159 | #define DEF_POINTER_TYPE(NAME, TYPE) NAME, | |
160 | #include "builtin-types.def" | |
161 | #undef DEF_PRIMITIVE_TYPE | |
162 | #undef DEF_FUNCTION_TYPE_0 | |
163 | #undef DEF_FUNCTION_TYPE_1 | |
164 | #undef DEF_FUNCTION_TYPE_2 | |
165 | #undef DEF_FUNCTION_TYPE_3 | |
166 | #undef DEF_FUNCTION_TYPE_4 | |
167 | #undef DEF_FUNCTION_TYPE_5 | |
168 | #undef DEF_FUNCTION_TYPE_6 | |
169 | #undef DEF_FUNCTION_TYPE_7 | |
acf0174b | 170 | #undef DEF_FUNCTION_TYPE_8 |
d7f09764 DN |
171 | #undef DEF_FUNCTION_TYPE_VAR_0 |
172 | #undef DEF_FUNCTION_TYPE_VAR_1 | |
173 | #undef DEF_FUNCTION_TYPE_VAR_2 | |
174 | #undef DEF_FUNCTION_TYPE_VAR_3 | |
175 | #undef DEF_FUNCTION_TYPE_VAR_4 | |
176 | #undef DEF_FUNCTION_TYPE_VAR_5 | |
177 | #undef DEF_POINTER_TYPE | |
178 | BT_LAST | |
179 | }; | |
180 | ||
181 | typedef enum lto_builtin_type builtin_type; | |
182 | ||
183 | static GTY(()) tree builtin_types[(int) BT_LAST + 1]; | |
184 | ||
185 | static GTY(()) tree string_type_node; | |
186 | static GTY(()) tree const_string_type_node; | |
187 | static GTY(()) tree wint_type_node; | |
188 | static GTY(()) tree intmax_type_node; | |
189 | static GTY(()) tree uintmax_type_node; | |
190 | static GTY(()) tree signed_size_type_node; | |
191 | ||
192 | /* Flags needed to process builtins.def. */ | |
d7f09764 DN |
193 | int flag_isoc94; |
194 | int flag_isoc99; | |
195 | ||
196 | /* Attribute handlers. */ | |
197 | ||
198 | /* Handle a "noreturn" attribute; arguments as in | |
199 | struct attribute_spec.handler. */ | |
200 | ||
201 | static tree | |
202 | handle_noreturn_attribute (tree *node, tree ARG_UNUSED (name), | |
203 | tree ARG_UNUSED (args), int ARG_UNUSED (flags), | |
204 | bool * ARG_UNUSED (no_add_attrs)) | |
205 | { | |
206 | tree type = TREE_TYPE (*node); | |
207 | ||
208 | if (TREE_CODE (*node) == FUNCTION_DECL) | |
209 | TREE_THIS_VOLATILE (*node) = 1; | |
210 | else if (TREE_CODE (type) == POINTER_TYPE | |
211 | && TREE_CODE (TREE_TYPE (type)) == FUNCTION_TYPE) | |
212 | TREE_TYPE (*node) | |
213 | = build_pointer_type | |
214 | (build_type_variant (TREE_TYPE (type), | |
215 | TYPE_READONLY (TREE_TYPE (type)), 1)); | |
216 | else | |
217 | gcc_unreachable (); | |
218 | ||
219 | return NULL_TREE; | |
220 | } | |
221 | ||
0d6e14fd JH |
222 | /* Handle a "leaf" attribute; arguments as in |
223 | struct attribute_spec.handler. */ | |
224 | ||
225 | static tree | |
226 | handle_leaf_attribute (tree *node, tree name, | |
227 | tree ARG_UNUSED (args), | |
228 | int ARG_UNUSED (flags), bool *no_add_attrs) | |
229 | { | |
230 | if (TREE_CODE (*node) != FUNCTION_DECL) | |
231 | { | |
232 | warning (OPT_Wattributes, "%qE attribute ignored", name); | |
233 | *no_add_attrs = true; | |
234 | } | |
235 | if (!TREE_PUBLIC (*node)) | |
236 | { | |
237 | warning (OPT_Wattributes, "%qE attribute has no effect on unit local functions", name); | |
238 | *no_add_attrs = true; | |
239 | } | |
240 | ||
241 | return NULL_TREE; | |
242 | } | |
d7f09764 DN |
243 | |
244 | /* Handle a "const" attribute; arguments as in | |
245 | struct attribute_spec.handler. */ | |
246 | ||
247 | static tree | |
248 | handle_const_attribute (tree *node, tree ARG_UNUSED (name), | |
249 | tree ARG_UNUSED (args), int ARG_UNUSED (flags), | |
250 | bool * ARG_UNUSED (no_add_attrs)) | |
251 | { | |
252 | tree type = TREE_TYPE (*node); | |
253 | ||
254 | /* See FIXME comment on noreturn in c_common_attribute_table. */ | |
255 | if (TREE_CODE (*node) == FUNCTION_DECL) | |
256 | TREE_READONLY (*node) = 1; | |
257 | else if (TREE_CODE (type) == POINTER_TYPE | |
258 | && TREE_CODE (TREE_TYPE (type)) == FUNCTION_TYPE) | |
259 | TREE_TYPE (*node) | |
260 | = build_pointer_type | |
261 | (build_type_variant (TREE_TYPE (type), 1, | |
262 | TREE_THIS_VOLATILE (TREE_TYPE (type)))); | |
263 | else | |
264 | gcc_unreachable (); | |
265 | ||
266 | return NULL_TREE; | |
267 | } | |
268 | ||
269 | ||
270 | /* Handle a "malloc" attribute; arguments as in | |
271 | struct attribute_spec.handler. */ | |
272 | ||
273 | static tree | |
274 | handle_malloc_attribute (tree *node, tree ARG_UNUSED (name), | |
275 | tree ARG_UNUSED (args), int ARG_UNUSED (flags), | |
276 | bool * ARG_UNUSED (no_add_attrs)) | |
277 | { | |
278 | if (TREE_CODE (*node) == FUNCTION_DECL | |
279 | && POINTER_TYPE_P (TREE_TYPE (TREE_TYPE (*node)))) | |
280 | DECL_IS_MALLOC (*node) = 1; | |
281 | else | |
282 | gcc_unreachable (); | |
283 | ||
284 | return NULL_TREE; | |
285 | } | |
286 | ||
287 | ||
288 | /* Handle a "pure" attribute; arguments as in | |
289 | struct attribute_spec.handler. */ | |
290 | ||
291 | static tree | |
292 | handle_pure_attribute (tree *node, tree ARG_UNUSED (name), | |
293 | tree ARG_UNUSED (args), int ARG_UNUSED (flags), | |
294 | bool * ARG_UNUSED (no_add_attrs)) | |
295 | { | |
296 | if (TREE_CODE (*node) == FUNCTION_DECL) | |
297 | DECL_PURE_P (*node) = 1; | |
298 | else | |
299 | gcc_unreachable (); | |
300 | ||
301 | return NULL_TREE; | |
302 | } | |
303 | ||
304 | ||
305 | /* Handle a "no vops" attribute; arguments as in | |
306 | struct attribute_spec.handler. */ | |
307 | ||
308 | static tree | |
309 | handle_novops_attribute (tree *node, tree ARG_UNUSED (name), | |
310 | tree ARG_UNUSED (args), int ARG_UNUSED (flags), | |
311 | bool *ARG_UNUSED (no_add_attrs)) | |
312 | { | |
313 | gcc_assert (TREE_CODE (*node) == FUNCTION_DECL); | |
314 | DECL_IS_NOVOPS (*node) = 1; | |
315 | return NULL_TREE; | |
316 | } | |
317 | ||
318 | ||
319 | /* Helper for nonnull attribute handling; fetch the operand number | |
320 | from the attribute argument list. */ | |
321 | ||
322 | static bool | |
323 | get_nonnull_operand (tree arg_num_expr, unsigned HOST_WIDE_INT *valp) | |
324 | { | |
325 | /* Verify the arg number is a constant. */ | |
326 | if (TREE_CODE (arg_num_expr) != INTEGER_CST | |
327 | || TREE_INT_CST_HIGH (arg_num_expr) != 0) | |
328 | return false; | |
329 | ||
330 | *valp = TREE_INT_CST_LOW (arg_num_expr); | |
331 | return true; | |
332 | } | |
333 | ||
334 | /* Handle the "nonnull" attribute. */ | |
335 | ||
336 | static tree | |
337 | handle_nonnull_attribute (tree *node, tree ARG_UNUSED (name), | |
338 | tree args, int ARG_UNUSED (flags), | |
339 | bool * ARG_UNUSED (no_add_attrs)) | |
340 | { | |
341 | tree type = *node; | |
d7f09764 DN |
342 | |
343 | /* If no arguments are specified, all pointer arguments should be | |
344 | non-null. Verify a full prototype is given so that the arguments | |
345 | will have the correct types when we actually check them later. */ | |
346 | if (!args) | |
347 | { | |
f4da8dce | 348 | gcc_assert (prototype_p (type)); |
d7f09764 DN |
349 | return NULL_TREE; |
350 | } | |
351 | ||
352 | /* Argument list specified. Verify that each argument number references | |
353 | a pointer argument. */ | |
0f900dfa | 354 | for (; args; args = TREE_CHAIN (args)) |
d7f09764 DN |
355 | { |
356 | tree argument; | |
357 | unsigned HOST_WIDE_INT arg_num = 0, ck_num; | |
358 | ||
359 | if (!get_nonnull_operand (TREE_VALUE (args), &arg_num)) | |
360 | gcc_unreachable (); | |
361 | ||
362 | argument = TYPE_ARG_TYPES (type); | |
363 | if (argument) | |
364 | { | |
365 | for (ck_num = 1; ; ck_num++) | |
366 | { | |
367 | if (!argument || ck_num == arg_num) | |
368 | break; | |
369 | argument = TREE_CHAIN (argument); | |
370 | } | |
371 | ||
372 | gcc_assert (argument | |
373 | && TREE_CODE (TREE_VALUE (argument)) == POINTER_TYPE); | |
374 | } | |
375 | } | |
376 | ||
377 | return NULL_TREE; | |
378 | } | |
379 | ||
380 | ||
381 | /* Handle a "nothrow" attribute; arguments as in | |
382 | struct attribute_spec.handler. */ | |
383 | ||
384 | static tree | |
385 | handle_nothrow_attribute (tree *node, tree ARG_UNUSED (name), | |
386 | tree ARG_UNUSED (args), int ARG_UNUSED (flags), | |
387 | bool * ARG_UNUSED (no_add_attrs)) | |
388 | { | |
389 | if (TREE_CODE (*node) == FUNCTION_DECL) | |
390 | TREE_NOTHROW (*node) = 1; | |
391 | else | |
392 | gcc_unreachable (); | |
393 | ||
394 | return NULL_TREE; | |
395 | } | |
396 | ||
397 | ||
398 | /* Handle a "sentinel" attribute. */ | |
399 | ||
400 | static tree | |
401 | handle_sentinel_attribute (tree *node, tree ARG_UNUSED (name), tree args, | |
402 | int ARG_UNUSED (flags), | |
403 | bool * ARG_UNUSED (no_add_attrs)) | |
404 | { | |
dcf0c47e | 405 | gcc_assert (stdarg_p (*node)); |
d7f09764 DN |
406 | |
407 | if (args) | |
408 | { | |
409 | tree position = TREE_VALUE (args); | |
410 | gcc_assert (TREE_CODE (position) == INTEGER_CST); | |
411 | if (tree_int_cst_lt (position, integer_zero_node)) | |
412 | gcc_unreachable (); | |
413 | } | |
414 | ||
415 | return NULL_TREE; | |
416 | } | |
417 | ||
418 | /* Handle a "type_generic" attribute. */ | |
419 | ||
420 | static tree | |
421 | handle_type_generic_attribute (tree *node, tree ARG_UNUSED (name), | |
422 | tree ARG_UNUSED (args), int ARG_UNUSED (flags), | |
423 | bool * ARG_UNUSED (no_add_attrs)) | |
424 | { | |
d7f09764 DN |
425 | /* Ensure we have a function type. */ |
426 | gcc_assert (TREE_CODE (*node) == FUNCTION_TYPE); | |
427 | ||
d7f09764 | 428 | /* Ensure we have a variadic function. */ |
dcf0c47e | 429 | gcc_assert (!prototype_p (*node) || stdarg_p (*node)); |
d7f09764 DN |
430 | |
431 | return NULL_TREE; | |
432 | } | |
433 | ||
57ac2606 AH |
434 | /* Handle a "transaction_pure" attribute. */ |
435 | ||
436 | static tree | |
437 | handle_transaction_pure_attribute (tree *node, tree ARG_UNUSED (name), | |
438 | tree ARG_UNUSED (args), | |
439 | int ARG_UNUSED (flags), | |
440 | bool * ARG_UNUSED (no_add_attrs)) | |
441 | { | |
442 | /* Ensure we have a function type. */ | |
443 | gcc_assert (TREE_CODE (*node) == FUNCTION_TYPE); | |
444 | ||
445 | return NULL_TREE; | |
446 | } | |
447 | ||
09228fef JJ |
448 | /* Handle a "returns_twice" attribute. */ |
449 | ||
450 | static tree | |
451 | handle_returns_twice_attribute (tree *node, tree ARG_UNUSED (name), | |
452 | tree ARG_UNUSED (args), | |
453 | int ARG_UNUSED (flags), | |
454 | bool * ARG_UNUSED (no_add_attrs)) | |
455 | { | |
456 | gcc_assert (TREE_CODE (*node) == FUNCTION_DECL); | |
457 | ||
458 | DECL_IS_RETURNS_TWICE (*node) = 1; | |
459 | ||
460 | return NULL_TREE; | |
461 | } | |
462 | ||
c8218030 UB |
463 | /* Ignore the given attribute. Used when this attribute may be usefully |
464 | overridden by the target, but is not used generically. */ | |
465 | ||
466 | static tree | |
467 | ignore_attribute (tree * ARG_UNUSED (node), tree ARG_UNUSED (name), | |
468 | tree ARG_UNUSED (args), int ARG_UNUSED (flags), | |
469 | bool *no_add_attrs) | |
470 | { | |
471 | *no_add_attrs = true; | |
472 | return NULL_TREE; | |
473 | } | |
474 | ||
d7f09764 DN |
475 | /* Handle a "format" attribute; arguments as in |
476 | struct attribute_spec.handler. */ | |
477 | ||
478 | static tree | |
479 | handle_format_attribute (tree * ARG_UNUSED (node), tree ARG_UNUSED (name), | |
480 | tree ARG_UNUSED (args), int ARG_UNUSED (flags), | |
481 | bool *no_add_attrs) | |
482 | { | |
483 | *no_add_attrs = true; | |
484 | return NULL_TREE; | |
485 | } | |
486 | ||
487 | ||
488 | /* Handle a "format_arg" attribute; arguments as in | |
489 | struct attribute_spec.handler. */ | |
490 | ||
491 | tree | |
492 | handle_format_arg_attribute (tree * ARG_UNUSED (node), tree ARG_UNUSED (name), | |
493 | tree ARG_UNUSED (args), int ARG_UNUSED (flags), | |
494 | bool *no_add_attrs) | |
495 | { | |
496 | *no_add_attrs = true; | |
497 | return NULL_TREE; | |
498 | } | |
499 | ||
500 | ||
e384e6b5 BS |
501 | /* Handle a "fn spec" attribute; arguments as in |
502 | struct attribute_spec.handler. */ | |
503 | ||
504 | static tree | |
505 | handle_fnspec_attribute (tree *node ATTRIBUTE_UNUSED, tree ARG_UNUSED (name), | |
506 | tree args, int ARG_UNUSED (flags), | |
507 | bool *no_add_attrs ATTRIBUTE_UNUSED) | |
508 | { | |
509 | gcc_assert (args | |
510 | && TREE_CODE (TREE_VALUE (args)) == STRING_CST | |
511 | && !TREE_CHAIN (args)); | |
512 | return NULL_TREE; | |
513 | } | |
514 | ||
d7f09764 DN |
515 | /* Cribbed from c-common.c. */ |
516 | ||
517 | static void | |
518 | def_fn_type (builtin_type def, builtin_type ret, bool var, int n, ...) | |
519 | { | |
8242dd04 NF |
520 | tree t; |
521 | tree *args = XALLOCAVEC (tree, n); | |
d7f09764 DN |
522 | va_list list; |
523 | int i; | |
524 | ||
525 | va_start (list, n); | |
526 | for (i = 0; i < n; ++i) | |
527 | { | |
528 | builtin_type a = (builtin_type) va_arg (list, int); | |
529 | t = builtin_types[a]; | |
530 | if (t == error_mark_node) | |
531 | goto egress; | |
8242dd04 | 532 | args[i] = t; |
d7f09764 DN |
533 | } |
534 | va_end (list); | |
535 | ||
d7f09764 DN |
536 | t = builtin_types[ret]; |
537 | if (t == error_mark_node) | |
538 | goto egress; | |
8242dd04 NF |
539 | if (var) |
540 | t = build_varargs_function_type_array (t, n, args); | |
541 | else | |
542 | t = build_function_type_array (t, n, args); | |
d7f09764 DN |
543 | |
544 | egress: | |
545 | builtin_types[def] = t; | |
0edf1bb2 | 546 | va_end (list); |
d7f09764 DN |
547 | } |
548 | ||
549 | /* Used to help initialize the builtin-types.def table. When a type of | |
550 | the correct size doesn't exist, use error_mark_node instead of NULL. | |
551 | The later results in segfaults even when a decl using the type doesn't | |
552 | get invoked. */ | |
553 | ||
554 | static tree | |
555 | builtin_type_for_size (int size, bool unsignedp) | |
556 | { | |
21fa2faf | 557 | tree type = lto_type_for_size (size, unsignedp); |
d7f09764 DN |
558 | return type ? type : error_mark_node; |
559 | } | |
560 | ||
561 | /* Support for DEF_BUILTIN. */ | |
562 | ||
563 | static void | |
564 | def_builtin_1 (enum built_in_function fncode, const char *name, | |
565 | enum built_in_class fnclass, tree fntype, tree libtype, | |
566 | bool both_p, bool fallback_p, bool nonansi_p, | |
567 | tree fnattrs, bool implicit_p) | |
568 | { | |
569 | tree decl; | |
570 | const char *libname; | |
571 | ||
572 | if (fntype == error_mark_node) | |
573 | return; | |
574 | ||
575 | libname = name + strlen ("__builtin_"); | |
576 | decl = add_builtin_function (name, fntype, fncode, fnclass, | |
577 | (fallback_p ? libname : NULL), | |
578 | fnattrs); | |
579 | ||
580 | if (both_p | |
581 | && !flag_no_builtin | |
582 | && !(nonansi_p && flag_no_nonansi_builtin)) | |
583 | add_builtin_function (libname, libtype, fncode, fnclass, | |
584 | NULL, fnattrs); | |
585 | ||
e79983f4 | 586 | set_builtin_decl (fncode, decl, implicit_p); |
d7f09764 DN |
587 | } |
588 | ||
589 | ||
590 | /* Initialize the attribute table for all the supported builtins. */ | |
591 | ||
592 | static void | |
593 | lto_init_attributes (void) | |
594 | { | |
595 | /* Fill in the built_in_attributes array. */ | |
596 | #define DEF_ATTR_NULL_TREE(ENUM) \ | |
597 | built_in_attributes[(int) ENUM] = NULL_TREE; | |
598 | #define DEF_ATTR_INT(ENUM, VALUE) \ | |
599 | built_in_attributes[(int) ENUM] = build_int_cst (NULL_TREE, VALUE); | |
e384e6b5 BS |
600 | #define DEF_ATTR_STRING(ENUM, VALUE) \ |
601 | built_in_attributes[(int) ENUM] = build_string (strlen (VALUE), VALUE); | |
d7f09764 DN |
602 | #define DEF_ATTR_IDENT(ENUM, STRING) \ |
603 | built_in_attributes[(int) ENUM] = get_identifier (STRING); | |
604 | #define DEF_ATTR_TREE_LIST(ENUM, PURPOSE, VALUE, CHAIN) \ | |
605 | built_in_attributes[(int) ENUM] \ | |
606 | = tree_cons (built_in_attributes[(int) PURPOSE], \ | |
607 | built_in_attributes[(int) VALUE], \ | |
608 | built_in_attributes[(int) CHAIN]); | |
609 | #include "builtin-attrs.def" | |
610 | #undef DEF_ATTR_NULL_TREE | |
611 | #undef DEF_ATTR_INT | |
e384e6b5 | 612 | #undef DEF_ATTR_STRING |
d7f09764 DN |
613 | #undef DEF_ATTR_IDENT |
614 | #undef DEF_ATTR_TREE_LIST | |
615 | } | |
616 | ||
617 | /* Create builtin types and functions. VA_LIST_REF_TYPE_NODE and | |
618 | VA_LIST_ARG_TYPE_NODE are used in builtin-types.def. */ | |
619 | ||
620 | static void | |
621 | lto_define_builtins (tree va_list_ref_type_node ATTRIBUTE_UNUSED, | |
622 | tree va_list_arg_type_node ATTRIBUTE_UNUSED) | |
623 | { | |
624 | #define DEF_PRIMITIVE_TYPE(ENUM, VALUE) \ | |
625 | builtin_types[ENUM] = VALUE; | |
626 | #define DEF_FUNCTION_TYPE_0(ENUM, RETURN) \ | |
627 | def_fn_type (ENUM, RETURN, 0, 0); | |
628 | #define DEF_FUNCTION_TYPE_1(ENUM, RETURN, ARG1) \ | |
629 | def_fn_type (ENUM, RETURN, 0, 1, ARG1); | |
630 | #define DEF_FUNCTION_TYPE_2(ENUM, RETURN, ARG1, ARG2) \ | |
631 | def_fn_type (ENUM, RETURN, 0, 2, ARG1, ARG2); | |
632 | #define DEF_FUNCTION_TYPE_3(ENUM, RETURN, ARG1, ARG2, ARG3) \ | |
633 | def_fn_type (ENUM, RETURN, 0, 3, ARG1, ARG2, ARG3); | |
634 | #define DEF_FUNCTION_TYPE_4(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4) \ | |
635 | def_fn_type (ENUM, RETURN, 0, 4, ARG1, ARG2, ARG3, ARG4); | |
636 | #define DEF_FUNCTION_TYPE_5(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5) \ | |
637 | def_fn_type (ENUM, RETURN, 0, 5, ARG1, ARG2, ARG3, ARG4, ARG5); | |
638 | #define DEF_FUNCTION_TYPE_6(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \ | |
639 | ARG6) \ | |
640 | def_fn_type (ENUM, RETURN, 0, 6, ARG1, ARG2, ARG3, ARG4, ARG5, ARG6); | |
641 | #define DEF_FUNCTION_TYPE_7(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \ | |
642 | ARG6, ARG7) \ | |
643 | def_fn_type (ENUM, RETURN, 0, 7, ARG1, ARG2, ARG3, ARG4, ARG5, ARG6, ARG7); | |
acf0174b JJ |
644 | #define DEF_FUNCTION_TYPE_8(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \ |
645 | ARG6, ARG7, ARG8) \ | |
646 | def_fn_type (ENUM, RETURN, 0, 8, ARG1, ARG2, ARG3, ARG4, ARG5, ARG6, \ | |
647 | ARG7, ARG8); | |
d7f09764 DN |
648 | #define DEF_FUNCTION_TYPE_VAR_0(ENUM, RETURN) \ |
649 | def_fn_type (ENUM, RETURN, 1, 0); | |
650 | #define DEF_FUNCTION_TYPE_VAR_1(ENUM, RETURN, ARG1) \ | |
651 | def_fn_type (ENUM, RETURN, 1, 1, ARG1); | |
652 | #define DEF_FUNCTION_TYPE_VAR_2(ENUM, RETURN, ARG1, ARG2) \ | |
653 | def_fn_type (ENUM, RETURN, 1, 2, ARG1, ARG2); | |
654 | #define DEF_FUNCTION_TYPE_VAR_3(ENUM, RETURN, ARG1, ARG2, ARG3) \ | |
655 | def_fn_type (ENUM, RETURN, 1, 3, ARG1, ARG2, ARG3); | |
656 | #define DEF_FUNCTION_TYPE_VAR_4(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4) \ | |
657 | def_fn_type (ENUM, RETURN, 1, 4, ARG1, ARG2, ARG3, ARG4); | |
658 | #define DEF_FUNCTION_TYPE_VAR_5(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5) \ | |
659 | def_fn_type (ENUM, RETURN, 1, 5, ARG1, ARG2, ARG3, ARG4, ARG5); | |
660 | #define DEF_POINTER_TYPE(ENUM, TYPE) \ | |
661 | builtin_types[(int) ENUM] = build_pointer_type (builtin_types[(int) TYPE]); | |
662 | ||
663 | #include "builtin-types.def" | |
664 | ||
665 | #undef DEF_PRIMITIVE_TYPE | |
666 | #undef DEF_FUNCTION_TYPE_1 | |
667 | #undef DEF_FUNCTION_TYPE_2 | |
668 | #undef DEF_FUNCTION_TYPE_3 | |
669 | #undef DEF_FUNCTION_TYPE_4 | |
670 | #undef DEF_FUNCTION_TYPE_5 | |
671 | #undef DEF_FUNCTION_TYPE_6 | |
672 | #undef DEF_FUNCTION_TYPE_VAR_0 | |
673 | #undef DEF_FUNCTION_TYPE_VAR_1 | |
674 | #undef DEF_FUNCTION_TYPE_VAR_2 | |
675 | #undef DEF_FUNCTION_TYPE_VAR_3 | |
676 | #undef DEF_FUNCTION_TYPE_VAR_4 | |
677 | #undef DEF_FUNCTION_TYPE_VAR_5 | |
678 | #undef DEF_POINTER_TYPE | |
679 | builtin_types[(int) BT_LAST] = NULL_TREE; | |
680 | ||
681 | lto_init_attributes (); | |
682 | ||
683 | #define DEF_BUILTIN(ENUM, NAME, CLASS, TYPE, LIBTYPE, BOTH_P, FALLBACK_P,\ | |
684 | NONANSI_P, ATTRS, IMPLICIT, COND) \ | |
685 | if (NAME && COND) \ | |
686 | def_builtin_1 (ENUM, NAME, CLASS, builtin_types[(int) TYPE], \ | |
687 | builtin_types[(int) LIBTYPE], BOTH_P, FALLBACK_P, \ | |
688 | NONANSI_P, built_in_attributes[(int) ATTRS], IMPLICIT); | |
689 | #include "builtins.def" | |
690 | #undef DEF_BUILTIN | |
691 | } | |
692 | ||
693 | static GTY(()) tree registered_builtin_types; | |
694 | ||
d7f09764 DN |
695 | /* Language hooks. */ |
696 | ||
697 | static unsigned int | |
7a9bf9a4 JM |
698 | lto_option_lang_mask (void) |
699 | { | |
700 | return CL_LTO; | |
701 | } | |
702 | ||
703 | static bool | |
704 | lto_complain_wrong_lang_p (const struct cl_option *option ATTRIBUTE_UNUSED) | |
705 | { | |
706 | /* The LTO front end inherits all the options from the first front | |
707 | end that was used. However, not all the original front end | |
708 | options make sense in LTO. | |
709 | ||
710 | A real solution would be to filter this in collect2, but collect2 | |
711 | does not have access to all the option attributes to know what to | |
712 | filter. So, in lto1 we silently accept inherited flags and do | |
713 | nothing about it. */ | |
714 | return false; | |
715 | } | |
716 | ||
717 | static void | |
a75bfaa6 | 718 | lto_init_options_struct (struct gcc_options *opts) |
d7f09764 | 719 | { |
1ab53893 RG |
720 | /* By default, C99-like requirements for complex multiply and divide. |
721 | ??? Until the complex method is encoded in the IL this is the only | |
722 | safe choice. This will pessimize Fortran code with LTO unless | |
723 | people specify a complex method manually or use -ffast-math. */ | |
a75bfaa6 | 724 | opts->x_flag_complex_method = 2; |
d7f09764 DN |
725 | } |
726 | ||
727 | /* Handle command-line option SCODE. If the option takes an argument, it is | |
728 | stored in ARG, which is otherwise NULL. VALUE holds either a numerical | |
729 | argument or a binary value indicating whether the positive or negative form | |
730 | of the option was supplied. */ | |
731 | ||
732 | const char *resolution_file_name; | |
5f20c657 | 733 | static bool |
afa83c15 | 734 | lto_handle_option (size_t scode, const char *arg, |
5f20c657 | 735 | int value ATTRIBUTE_UNUSED, int kind ATTRIBUTE_UNUSED, |
a4d8c676 | 736 | location_t loc ATTRIBUTE_UNUSED, |
5f20c657 | 737 | const struct cl_option_handlers *handlers ATTRIBUTE_UNUSED) |
d7f09764 DN |
738 | { |
739 | enum opt_code code = (enum opt_code) scode; | |
5f20c657 | 740 | bool result = true; |
d7f09764 DN |
741 | |
742 | switch (code) | |
743 | { | |
5cd0e96b | 744 | case OPT_fresolution_: |
d7f09764 | 745 | resolution_file_name = arg; |
d7f09764 DN |
746 | break; |
747 | ||
748 | case OPT_Wabi: | |
749 | warn_psabi = value; | |
750 | break; | |
751 | ||
752 | default: | |
753 | break; | |
754 | } | |
755 | ||
756 | return result; | |
757 | } | |
758 | ||
759 | /* Perform post-option processing. Does additional initialization based on | |
760 | command-line options. PFILENAME is the main input filename. Returns false | |
761 | to enable subsequent back-end initialization. */ | |
762 | ||
763 | static bool | |
764 | lto_post_options (const char **pfilename ATTRIBUTE_UNUSED) | |
765 | { | |
d7f09764 DN |
766 | /* -fltrans and -fwpa are mutually exclusive. Check for that here. */ |
767 | if (flag_wpa && flag_ltrans) | |
3c2e7d45 | 768 | error ("-fwpa and -fltrans are mutually exclusive"); |
d7f09764 DN |
769 | |
770 | if (flag_ltrans) | |
771 | { | |
772 | flag_generate_lto = 0; | |
773 | ||
774 | /* During LTRANS, we are not looking at the whole program, only | |
775 | a subset of the whole callgraph. */ | |
776 | flag_whole_program = 0; | |
777 | } | |
778 | ||
779 | if (flag_wpa) | |
780 | flag_generate_lto = 1; | |
781 | ||
782 | /* Excess precision other than "fast" requires front-end | |
783 | support. */ | |
784 | flag_excess_precision_cmdline = EXCESS_PRECISION_FAST; | |
785 | ||
d7f09764 DN |
786 | /* Initialize the compiler back end. */ |
787 | return false; | |
788 | } | |
789 | ||
790 | /* Return an integer type with PRECISION bits of precision, | |
791 | that is unsigned if UNSIGNEDP is nonzero, otherwise signed. */ | |
792 | ||
793 | static tree | |
794 | lto_type_for_size (unsigned precision, int unsignedp) | |
795 | { | |
796 | if (precision == TYPE_PRECISION (integer_type_node)) | |
797 | return unsignedp ? unsigned_type_node : integer_type_node; | |
798 | ||
799 | if (precision == TYPE_PRECISION (signed_char_type_node)) | |
800 | return unsignedp ? unsigned_char_type_node : signed_char_type_node; | |
801 | ||
802 | if (precision == TYPE_PRECISION (short_integer_type_node)) | |
803 | return unsignedp ? short_unsigned_type_node : short_integer_type_node; | |
804 | ||
805 | if (precision == TYPE_PRECISION (long_integer_type_node)) | |
806 | return unsignedp ? long_unsigned_type_node : long_integer_type_node; | |
807 | ||
808 | if (precision == TYPE_PRECISION (long_long_integer_type_node)) | |
809 | return unsignedp | |
810 | ? long_long_unsigned_type_node | |
811 | : long_long_integer_type_node; | |
812 | ||
813 | if (precision <= TYPE_PRECISION (intQI_type_node)) | |
814 | return unsignedp ? unsigned_intQI_type_node : intQI_type_node; | |
815 | ||
816 | if (precision <= TYPE_PRECISION (intHI_type_node)) | |
817 | return unsignedp ? unsigned_intHI_type_node : intHI_type_node; | |
818 | ||
819 | if (precision <= TYPE_PRECISION (intSI_type_node)) | |
820 | return unsignedp ? unsigned_intSI_type_node : intSI_type_node; | |
821 | ||
822 | if (precision <= TYPE_PRECISION (intDI_type_node)) | |
823 | return unsignedp ? unsigned_intDI_type_node : intDI_type_node; | |
824 | ||
825 | if (precision <= TYPE_PRECISION (intTI_type_node)) | |
826 | return unsignedp ? unsigned_intTI_type_node : intTI_type_node; | |
827 | ||
828 | return NULL_TREE; | |
829 | } | |
830 | ||
831 | ||
832 | /* Return a data type that has machine mode MODE. | |
833 | If the mode is an integer, | |
834 | then UNSIGNEDP selects between signed and unsigned types. | |
835 | If the mode is a fixed-point mode, | |
836 | then UNSIGNEDP selects between saturating and nonsaturating types. */ | |
837 | ||
838 | static tree | |
839 | lto_type_for_mode (enum machine_mode mode, int unsigned_p) | |
840 | { | |
841 | tree t; | |
842 | ||
843 | if (mode == TYPE_MODE (integer_type_node)) | |
844 | return unsigned_p ? unsigned_type_node : integer_type_node; | |
845 | ||
846 | if (mode == TYPE_MODE (signed_char_type_node)) | |
847 | return unsigned_p ? unsigned_char_type_node : signed_char_type_node; | |
848 | ||
849 | if (mode == TYPE_MODE (short_integer_type_node)) | |
850 | return unsigned_p ? short_unsigned_type_node : short_integer_type_node; | |
851 | ||
852 | if (mode == TYPE_MODE (long_integer_type_node)) | |
853 | return unsigned_p ? long_unsigned_type_node : long_integer_type_node; | |
854 | ||
855 | if (mode == TYPE_MODE (long_long_integer_type_node)) | |
856 | return unsigned_p ? long_long_unsigned_type_node : long_long_integer_type_node; | |
857 | ||
858 | if (mode == QImode) | |
859 | return unsigned_p ? unsigned_intQI_type_node : intQI_type_node; | |
860 | ||
861 | if (mode == HImode) | |
862 | return unsigned_p ? unsigned_intHI_type_node : intHI_type_node; | |
863 | ||
864 | if (mode == SImode) | |
865 | return unsigned_p ? unsigned_intSI_type_node : intSI_type_node; | |
866 | ||
867 | if (mode == DImode) | |
868 | return unsigned_p ? unsigned_intDI_type_node : intDI_type_node; | |
869 | ||
870 | #if HOST_BITS_PER_WIDE_INT >= 64 | |
871 | if (mode == TYPE_MODE (intTI_type_node)) | |
872 | return unsigned_p ? unsigned_intTI_type_node : intTI_type_node; | |
873 | #endif | |
874 | ||
875 | if (mode == TYPE_MODE (float_type_node)) | |
876 | return float_type_node; | |
877 | ||
878 | if (mode == TYPE_MODE (double_type_node)) | |
879 | return double_type_node; | |
880 | ||
881 | if (mode == TYPE_MODE (long_double_type_node)) | |
882 | return long_double_type_node; | |
883 | ||
884 | if (mode == TYPE_MODE (void_type_node)) | |
885 | return void_type_node; | |
886 | ||
887 | if (mode == TYPE_MODE (build_pointer_type (char_type_node))) | |
888 | return (unsigned_p | |
889 | ? make_unsigned_type (GET_MODE_PRECISION (mode)) | |
890 | : make_signed_type (GET_MODE_PRECISION (mode))); | |
891 | ||
892 | if (mode == TYPE_MODE (build_pointer_type (integer_type_node))) | |
893 | return (unsigned_p | |
894 | ? make_unsigned_type (GET_MODE_PRECISION (mode)) | |
895 | : make_signed_type (GET_MODE_PRECISION (mode))); | |
896 | ||
897 | if (COMPLEX_MODE_P (mode)) | |
898 | { | |
899 | enum machine_mode inner_mode; | |
900 | tree inner_type; | |
901 | ||
902 | if (mode == TYPE_MODE (complex_float_type_node)) | |
903 | return complex_float_type_node; | |
904 | if (mode == TYPE_MODE (complex_double_type_node)) | |
905 | return complex_double_type_node; | |
906 | if (mode == TYPE_MODE (complex_long_double_type_node)) | |
907 | return complex_long_double_type_node; | |
908 | ||
909 | if (mode == TYPE_MODE (complex_integer_type_node) && !unsigned_p) | |
910 | return complex_integer_type_node; | |
911 | ||
912 | inner_mode = GET_MODE_INNER (mode); | |
913 | inner_type = lto_type_for_mode (inner_mode, unsigned_p); | |
914 | if (inner_type != NULL_TREE) | |
915 | return build_complex_type (inner_type); | |
916 | } | |
917 | else if (VECTOR_MODE_P (mode)) | |
918 | { | |
919 | enum machine_mode inner_mode = GET_MODE_INNER (mode); | |
920 | tree inner_type = lto_type_for_mode (inner_mode, unsigned_p); | |
921 | if (inner_type != NULL_TREE) | |
922 | return build_vector_type_for_mode (inner_type, mode); | |
923 | } | |
924 | ||
925 | if (mode == TYPE_MODE (dfloat32_type_node)) | |
926 | return dfloat32_type_node; | |
927 | if (mode == TYPE_MODE (dfloat64_type_node)) | |
928 | return dfloat64_type_node; | |
929 | if (mode == TYPE_MODE (dfloat128_type_node)) | |
930 | return dfloat128_type_node; | |
931 | ||
932 | if (ALL_SCALAR_FIXED_POINT_MODE_P (mode)) | |
933 | { | |
934 | if (mode == TYPE_MODE (short_fract_type_node)) | |
935 | return unsigned_p ? sat_short_fract_type_node : short_fract_type_node; | |
936 | if (mode == TYPE_MODE (fract_type_node)) | |
937 | return unsigned_p ? sat_fract_type_node : fract_type_node; | |
938 | if (mode == TYPE_MODE (long_fract_type_node)) | |
939 | return unsigned_p ? sat_long_fract_type_node : long_fract_type_node; | |
940 | if (mode == TYPE_MODE (long_long_fract_type_node)) | |
941 | return unsigned_p ? sat_long_long_fract_type_node | |
942 | : long_long_fract_type_node; | |
943 | ||
944 | if (mode == TYPE_MODE (unsigned_short_fract_type_node)) | |
945 | return unsigned_p ? sat_unsigned_short_fract_type_node | |
946 | : unsigned_short_fract_type_node; | |
947 | if (mode == TYPE_MODE (unsigned_fract_type_node)) | |
948 | return unsigned_p ? sat_unsigned_fract_type_node | |
949 | : unsigned_fract_type_node; | |
950 | if (mode == TYPE_MODE (unsigned_long_fract_type_node)) | |
951 | return unsigned_p ? sat_unsigned_long_fract_type_node | |
952 | : unsigned_long_fract_type_node; | |
953 | if (mode == TYPE_MODE (unsigned_long_long_fract_type_node)) | |
954 | return unsigned_p ? sat_unsigned_long_long_fract_type_node | |
955 | : unsigned_long_long_fract_type_node; | |
956 | ||
957 | if (mode == TYPE_MODE (short_accum_type_node)) | |
958 | return unsigned_p ? sat_short_accum_type_node : short_accum_type_node; | |
959 | if (mode == TYPE_MODE (accum_type_node)) | |
960 | return unsigned_p ? sat_accum_type_node : accum_type_node; | |
961 | if (mode == TYPE_MODE (long_accum_type_node)) | |
962 | return unsigned_p ? sat_long_accum_type_node : long_accum_type_node; | |
963 | if (mode == TYPE_MODE (long_long_accum_type_node)) | |
964 | return unsigned_p ? sat_long_long_accum_type_node | |
965 | : long_long_accum_type_node; | |
966 | ||
967 | if (mode == TYPE_MODE (unsigned_short_accum_type_node)) | |
968 | return unsigned_p ? sat_unsigned_short_accum_type_node | |
969 | : unsigned_short_accum_type_node; | |
970 | if (mode == TYPE_MODE (unsigned_accum_type_node)) | |
971 | return unsigned_p ? sat_unsigned_accum_type_node | |
972 | : unsigned_accum_type_node; | |
973 | if (mode == TYPE_MODE (unsigned_long_accum_type_node)) | |
974 | return unsigned_p ? sat_unsigned_long_accum_type_node | |
975 | : unsigned_long_accum_type_node; | |
976 | if (mode == TYPE_MODE (unsigned_long_long_accum_type_node)) | |
977 | return unsigned_p ? sat_unsigned_long_long_accum_type_node | |
978 | : unsigned_long_long_accum_type_node; | |
979 | ||
980 | if (mode == QQmode) | |
981 | return unsigned_p ? sat_qq_type_node : qq_type_node; | |
982 | if (mode == HQmode) | |
983 | return unsigned_p ? sat_hq_type_node : hq_type_node; | |
984 | if (mode == SQmode) | |
985 | return unsigned_p ? sat_sq_type_node : sq_type_node; | |
986 | if (mode == DQmode) | |
987 | return unsigned_p ? sat_dq_type_node : dq_type_node; | |
988 | if (mode == TQmode) | |
989 | return unsigned_p ? sat_tq_type_node : tq_type_node; | |
990 | ||
991 | if (mode == UQQmode) | |
992 | return unsigned_p ? sat_uqq_type_node : uqq_type_node; | |
993 | if (mode == UHQmode) | |
994 | return unsigned_p ? sat_uhq_type_node : uhq_type_node; | |
995 | if (mode == USQmode) | |
996 | return unsigned_p ? sat_usq_type_node : usq_type_node; | |
997 | if (mode == UDQmode) | |
998 | return unsigned_p ? sat_udq_type_node : udq_type_node; | |
999 | if (mode == UTQmode) | |
1000 | return unsigned_p ? sat_utq_type_node : utq_type_node; | |
1001 | ||
1002 | if (mode == HAmode) | |
1003 | return unsigned_p ? sat_ha_type_node : ha_type_node; | |
1004 | if (mode == SAmode) | |
1005 | return unsigned_p ? sat_sa_type_node : sa_type_node; | |
1006 | if (mode == DAmode) | |
1007 | return unsigned_p ? sat_da_type_node : da_type_node; | |
1008 | if (mode == TAmode) | |
1009 | return unsigned_p ? sat_ta_type_node : ta_type_node; | |
1010 | ||
1011 | if (mode == UHAmode) | |
1012 | return unsigned_p ? sat_uha_type_node : uha_type_node; | |
1013 | if (mode == USAmode) | |
1014 | return unsigned_p ? sat_usa_type_node : usa_type_node; | |
1015 | if (mode == UDAmode) | |
1016 | return unsigned_p ? sat_uda_type_node : uda_type_node; | |
1017 | if (mode == UTAmode) | |
1018 | return unsigned_p ? sat_uta_type_node : uta_type_node; | |
1019 | } | |
1020 | ||
1021 | for (t = registered_builtin_types; t; t = TREE_CHAIN (t)) | |
1022 | if (TYPE_MODE (TREE_VALUE (t)) == mode) | |
1023 | return TREE_VALUE (t); | |
1024 | ||
1025 | return NULL_TREE; | |
1026 | } | |
1027 | ||
c99c0026 EB |
1028 | /* Return true if we are in the global binding level. */ |
1029 | ||
1030 | static bool | |
1031 | lto_global_bindings_p (void) | |
d7f09764 DN |
1032 | { |
1033 | return cfun == NULL; | |
1034 | } | |
1035 | ||
1036 | static void | |
1037 | lto_set_decl_assembler_name (tree decl) | |
1038 | { | |
1039 | /* This is almost the same as lhd_set_decl_assembler_name, except that | |
1040 | we need to uniquify file-scope names, even if they are not | |
1041 | TREE_PUBLIC, to avoid conflicts between individual files. */ | |
1042 | tree id; | |
1043 | ||
1044 | if (TREE_PUBLIC (decl)) | |
1045 | id = targetm.mangle_decl_assembler_name (decl, DECL_NAME (decl)); | |
1046 | else | |
1047 | { | |
1048 | const char *name = IDENTIFIER_POINTER (DECL_NAME (decl)); | |
1049 | char *label; | |
1050 | ||
1051 | ASM_FORMAT_PRIVATE_NAME (label, name, DECL_UID (decl)); | |
1052 | id = get_identifier (label); | |
1053 | } | |
1054 | ||
1055 | SET_DECL_ASSEMBLER_NAME (decl, id); | |
1056 | } | |
1057 | ||
1058 | static tree | |
1059 | lto_pushdecl (tree t ATTRIBUTE_UNUSED) | |
1060 | { | |
1061 | /* Do nothing, since we get all information from DWARF and LTO | |
1062 | sections. */ | |
1063 | return NULL_TREE; | |
1064 | } | |
1065 | ||
1066 | static tree | |
1067 | lto_getdecls (void) | |
1068 | { | |
e89964e3 MM |
1069 | /* We have our own write_globals langhook, hence the getdecls |
1070 | langhook shouldn't be used, except by dbxout.c, so we can't | |
1071 | just abort here. */ | |
1072 | return NULL_TREE; | |
d7f09764 DN |
1073 | } |
1074 | ||
1075 | static void | |
1076 | lto_write_globals (void) | |
1077 | { | |
9771b263 DN |
1078 | tree *vec = lto_global_var_decls->address (); |
1079 | int len = lto_global_var_decls->length (); | |
d7f09764 DN |
1080 | wrapup_global_declarations (vec, len); |
1081 | emit_debug_global_declarations (vec, len); | |
9771b263 | 1082 | vec_free (lto_global_var_decls); |
d7f09764 DN |
1083 | } |
1084 | ||
1085 | static tree | |
1086 | lto_builtin_function (tree decl) | |
1087 | { | |
d7f09764 DN |
1088 | return decl; |
1089 | } | |
1090 | ||
1091 | static void | |
1092 | lto_register_builtin_type (tree type, const char *name) | |
1093 | { | |
1094 | tree decl; | |
1095 | ||
d7f09764 | 1096 | if (!TYPE_NAME (type)) |
0b8c30f9 TB |
1097 | { |
1098 | decl = build_decl (UNKNOWN_LOCATION, TYPE_DECL, | |
1099 | get_identifier (name), type); | |
1100 | DECL_ARTIFICIAL (decl) = 1; | |
1101 | TYPE_NAME (type) = decl; | |
1102 | } | |
d7f09764 DN |
1103 | |
1104 | registered_builtin_types = tree_cons (0, type, registered_builtin_types); | |
1105 | } | |
1106 | ||
1107 | /* Build nodes that would have be created by the C front-end; necessary | |
1108 | for including builtin-types.def and ultimately builtins.def. */ | |
1109 | ||
1110 | static void | |
1111 | lto_build_c_type_nodes (void) | |
1112 | { | |
1113 | gcc_assert (void_type_node); | |
1114 | ||
1115 | void_list_node = build_tree_list (NULL_TREE, void_type_node); | |
1116 | string_type_node = build_pointer_type (char_type_node); | |
1117 | const_string_type_node | |
1118 | = build_pointer_type (build_qualified_type (char_type_node, TYPE_QUAL_CONST)); | |
1119 | ||
1120 | if (strcmp (SIZE_TYPE, "unsigned int") == 0) | |
1121 | { | |
1122 | intmax_type_node = integer_type_node; | |
1123 | uintmax_type_node = unsigned_type_node; | |
1124 | signed_size_type_node = integer_type_node; | |
1125 | } | |
1126 | else if (strcmp (SIZE_TYPE, "long unsigned int") == 0) | |
1127 | { | |
1128 | intmax_type_node = long_integer_type_node; | |
1129 | uintmax_type_node = long_unsigned_type_node; | |
1130 | signed_size_type_node = long_integer_type_node; | |
1131 | } | |
94f64249 KT |
1132 | else if (strcmp (SIZE_TYPE, "long long unsigned int") == 0) |
1133 | { | |
1134 | intmax_type_node = long_long_integer_type_node; | |
1135 | uintmax_type_node = long_long_unsigned_type_node; | |
1136 | signed_size_type_node = long_long_integer_type_node; | |
1137 | } | |
d7f09764 DN |
1138 | else |
1139 | gcc_unreachable (); | |
1140 | ||
1141 | wint_type_node = unsigned_type_node; | |
1142 | pid_type_node = integer_type_node; | |
1143 | } | |
1144 | ||
d7f09764 DN |
1145 | /* Perform LTO-specific initialization. */ |
1146 | ||
1147 | static bool | |
1148 | lto_init (void) | |
1149 | { | |
1150 | /* We need to generate LTO if running in WPA mode. */ | |
1151 | flag_generate_lto = flag_wpa; | |
1152 | ||
d7f09764 | 1153 | /* Create the basic integer types. */ |
1a072294 | 1154 | build_common_tree_nodes (flag_signed_char, /*short_double=*/false); |
d7f09764 | 1155 | |
d7f09764 DN |
1156 | /* The global tree for the main identifier is filled in by |
1157 | language-specific front-end initialization that is not run in the | |
1158 | LTO back-end. It appears that all languages that perform such | |
1159 | initialization currently do so in the same way, so we do it here. */ | |
1160 | if (main_identifier_node == NULL_TREE) | |
1161 | main_identifier_node = get_identifier ("main"); | |
1162 | ||
1163 | /* In the C++ front-end, fileptr_type_node is defined as a variant | |
1164 | copy of of ptr_type_node, rather than ptr_node itself. The | |
1165 | distinction should only be relevant to the front-end, so we | |
1166 | always use the C definition here in lto1. */ | |
1167 | gcc_assert (fileptr_type_node == ptr_type_node); | |
b9393656 | 1168 | gcc_assert (TYPE_MAIN_VARIANT (fileptr_type_node) == ptr_type_node); |
d7f09764 DN |
1169 | |
1170 | ptrdiff_type_node = integer_type_node; | |
1171 | ||
d7f09764 DN |
1172 | lto_build_c_type_nodes (); |
1173 | gcc_assert (va_list_type_node); | |
1174 | ||
1175 | if (TREE_CODE (va_list_type_node) == ARRAY_TYPE) | |
1176 | { | |
1177 | tree x = build_pointer_type (TREE_TYPE (va_list_type_node)); | |
1178 | lto_define_builtins (x, x); | |
1179 | } | |
1180 | else | |
1181 | { | |
1182 | lto_define_builtins (va_list_type_node, | |
1183 | build_reference_type (va_list_type_node)); | |
1184 | } | |
939b37da BI |
1185 | |
1186 | if (flag_enable_cilkplus) | |
1187 | cilk_init_builtins (); | |
d7f09764 DN |
1188 | |
1189 | targetm.init_builtins (); | |
1190 | build_common_builtin_nodes (); | |
1191 | ||
6b7fb143 RG |
1192 | /* Assign names to the builtin types, otherwise they'll end up |
1193 | as __unknown__ in debug info. | |
1194 | ??? We simply need to stop pre-seeding the streamer cache. | |
1195 | Below is modeled after from c-common.c:c_common_nodes_and_builtins */ | |
1196 | #define NAME_TYPE(t,n) \ | |
1197 | if (t) \ | |
1198 | TYPE_NAME (t) = build_decl (UNKNOWN_LOCATION, TYPE_DECL, \ | |
1199 | get_identifier (n), t) | |
1200 | NAME_TYPE (integer_type_node, "int"); | |
1201 | NAME_TYPE (char_type_node, "char"); | |
1202 | NAME_TYPE (long_integer_type_node, "long int"); | |
1203 | NAME_TYPE (unsigned_type_node, "unsigned int"); | |
1204 | NAME_TYPE (long_unsigned_type_node, "long unsigned int"); | |
1205 | NAME_TYPE (long_long_integer_type_node, "long long int"); | |
1206 | NAME_TYPE (long_long_unsigned_type_node, "long long unsigned int"); | |
1207 | NAME_TYPE (short_integer_type_node, "short int"); | |
1208 | NAME_TYPE (short_unsigned_type_node, "short unsigned int"); | |
1209 | if (signed_char_type_node != char_type_node) | |
1210 | NAME_TYPE (signed_char_type_node, "signed char"); | |
1211 | if (unsigned_char_type_node != char_type_node) | |
1212 | NAME_TYPE (unsigned_char_type_node, "unsigned char"); | |
1213 | NAME_TYPE (float_type_node, "float"); | |
1214 | NAME_TYPE (double_type_node, "double"); | |
1215 | NAME_TYPE (long_double_type_node, "long double"); | |
1216 | NAME_TYPE (void_type_node, "void"); | |
1217 | NAME_TYPE (boolean_type_node, "bool"); | |
1218 | #undef NAME_TYPE | |
1219 | ||
d7f09764 | 1220 | /* Initialize LTO-specific data structures. */ |
9771b263 | 1221 | vec_alloc (lto_global_var_decls, 256); |
d7f09764 DN |
1222 | in_lto_p = true; |
1223 | ||
1224 | return true; | |
1225 | } | |
1226 | ||
1227 | /* Initialize tree structures required by the LTO front end. */ | |
1228 | ||
1229 | static void lto_init_ts (void) | |
1230 | { | |
1231 | tree_contains_struct[NAMESPACE_DECL][TS_DECL_MINIMAL] = 1; | |
1232 | } | |
1233 | ||
1234 | #undef LANG_HOOKS_NAME | |
1235 | #define LANG_HOOKS_NAME "GNU GIMPLE" | |
7a9bf9a4 JM |
1236 | #undef LANG_HOOKS_OPTION_LANG_MASK |
1237 | #define LANG_HOOKS_OPTION_LANG_MASK lto_option_lang_mask | |
1238 | #undef LANG_HOOKS_COMPLAIN_WRONG_LANG_P | |
1239 | #define LANG_HOOKS_COMPLAIN_WRONG_LANG_P lto_complain_wrong_lang_p | |
a75bfaa6 JM |
1240 | #undef LANG_HOOKS_INIT_OPTIONS_STRUCT |
1241 | #define LANG_HOOKS_INIT_OPTIONS_STRUCT lto_init_options_struct | |
d7f09764 DN |
1242 | #undef LANG_HOOKS_HANDLE_OPTION |
1243 | #define LANG_HOOKS_HANDLE_OPTION lto_handle_option | |
1244 | #undef LANG_HOOKS_POST_OPTIONS | |
1245 | #define LANG_HOOKS_POST_OPTIONS lto_post_options | |
1246 | #undef LANG_HOOKS_GET_ALIAS_SET | |
1247 | #define LANG_HOOKS_GET_ALIAS_SET gimple_get_alias_set | |
1248 | #undef LANG_HOOKS_TYPE_FOR_MODE | |
1249 | #define LANG_HOOKS_TYPE_FOR_MODE lto_type_for_mode | |
1250 | #undef LANG_HOOKS_TYPE_FOR_SIZE | |
1251 | #define LANG_HOOKS_TYPE_FOR_SIZE lto_type_for_size | |
1252 | #undef LANG_HOOKS_SET_DECL_ASSEMBLER_NAME | |
1253 | #define LANG_HOOKS_SET_DECL_ASSEMBLER_NAME lto_set_decl_assembler_name | |
1254 | #undef LANG_HOOKS_GLOBAL_BINDINGS_P | |
1255 | #define LANG_HOOKS_GLOBAL_BINDINGS_P lto_global_bindings_p | |
1256 | #undef LANG_HOOKS_PUSHDECL | |
1257 | #define LANG_HOOKS_PUSHDECL lto_pushdecl | |
1258 | #undef LANG_HOOKS_GETDECLS | |
1259 | #define LANG_HOOKS_GETDECLS lto_getdecls | |
1260 | #undef LANG_HOOKS_WRITE_GLOBALS | |
1261 | #define LANG_HOOKS_WRITE_GLOBALS lto_write_globals | |
1262 | #undef LANG_HOOKS_REGISTER_BUILTIN_TYPE | |
1263 | #define LANG_HOOKS_REGISTER_BUILTIN_TYPE lto_register_builtin_type | |
1264 | #undef LANG_HOOKS_BUILTIN_FUNCTION | |
1265 | #define LANG_HOOKS_BUILTIN_FUNCTION lto_builtin_function | |
1266 | #undef LANG_HOOKS_INIT | |
1267 | #define LANG_HOOKS_INIT lto_init | |
1268 | #undef LANG_HOOKS_PARSE_FILE | |
1269 | #define LANG_HOOKS_PARSE_FILE lto_main | |
d7f09764 DN |
1270 | #undef LANG_HOOKS_REDUCE_BIT_FIELD_OPERATIONS |
1271 | #define LANG_HOOKS_REDUCE_BIT_FIELD_OPERATIONS true | |
1272 | #undef LANG_HOOKS_TYPES_COMPATIBLE_P | |
1273 | #define LANG_HOOKS_TYPES_COMPATIBLE_P NULL | |
7951d88a EB |
1274 | #undef LANG_HOOKS_EH_PERSONALITY |
1275 | #define LANG_HOOKS_EH_PERSONALITY lto_eh_personality | |
d7f09764 DN |
1276 | |
1277 | /* Attribute hooks. */ | |
1278 | #undef LANG_HOOKS_COMMON_ATTRIBUTE_TABLE | |
1279 | #define LANG_HOOKS_COMMON_ATTRIBUTE_TABLE lto_attribute_table | |
1280 | #undef LANG_HOOKS_FORMAT_ATTRIBUTE_TABLE | |
1281 | #define LANG_HOOKS_FORMAT_ATTRIBUTE_TABLE lto_format_attribute_table | |
1282 | ||
1283 | #undef LANG_HOOKS_BEGIN_SECTION | |
2cee0101 | 1284 | #define LANG_HOOKS_BEGIN_SECTION lto_obj_begin_section |
d7f09764 | 1285 | #undef LANG_HOOKS_APPEND_DATA |
2cee0101 | 1286 | #define LANG_HOOKS_APPEND_DATA lto_obj_append_data |
d7f09764 | 1287 | #undef LANG_HOOKS_END_SECTION |
2cee0101 | 1288 | #define LANG_HOOKS_END_SECTION lto_obj_end_section |
d7f09764 DN |
1289 | |
1290 | #undef LANG_HOOKS_INIT_TS | |
1291 | #define LANG_HOOKS_INIT_TS lto_init_ts | |
1292 | ||
1293 | struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER; | |
1294 | ||
1295 | /* Language hooks that are not part of lang_hooks. */ | |
1296 | ||
1297 | tree | |
1298 | convert (tree type ATTRIBUTE_UNUSED, tree expr ATTRIBUTE_UNUSED) | |
1299 | { | |
1300 | gcc_unreachable (); | |
1301 | } | |
1302 | ||
1303 | /* Tree walking support. */ | |
1304 | ||
1305 | static enum lto_tree_node_structure_enum | |
1306 | lto_tree_node_structure (union lang_tree_node *t ATTRIBUTE_UNUSED) | |
1307 | { | |
1308 | return TS_LTO_GENERIC; | |
1309 | } | |
1310 | ||
d7f09764 DN |
1311 | #include "gtype-lto.h" |
1312 | #include "gt-lto-lto-lang.h" |