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7bfefa9d | 1 | /* Data structures and declarations used for reading and writing |
2 | GIMPLE to a file stream. | |
3 | ||
607eb2c8 | 4 | Copyright (C) 2009, 2010, 2011 Free Software Foundation, Inc. |
7bfefa9d | 5 | Contributed by Doug Kwan <dougkwan@google.com> |
6 | ||
7 | This file is part of GCC. | |
8 | ||
9 | GCC is free software; you can redistribute it and/or modify it under | |
10 | the terms of the GNU General Public License as published by the Free | |
11 | Software Foundation; either version 3, or (at your option) any later | |
12 | version. | |
13 | ||
14 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
15 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
16 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
17 | for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
20 | along with GCC; see the file COPYING3. If not see | |
21 | <http://www.gnu.org/licenses/>. */ | |
22 | ||
23 | #ifndef GCC_LTO_STREAMER_H | |
24 | #define GCC_LTO_STREAMER_H | |
25 | ||
26 | #include "plugin-api.h" | |
27 | #include "tree.h" | |
28 | #include "gimple.h" | |
29 | #include "target.h" | |
30 | #include "cgraph.h" | |
31 | #include "vec.h" | |
32 | #include "vecprim.h" | |
a33890d0 | 33 | #include "alloc-pool.h" |
c470c5a9 | 34 | #include "gcov-io.h" |
2541503d | 35 | #include "diagnostic.h" |
a0605d65 | 36 | |
7bfefa9d | 37 | /* Define when debugging the LTO streamer. This causes the writer |
38 | to output the numeric value for the memory address of the tree node | |
39 | being emitted. When debugging a problem in the reader, check the | |
40 | original address that the writer was emitting using lto_orig_address_get. | |
41 | With this value, set a breakpoint in the writer (e.g., lto_output_tree) | |
42 | to trace how the faulty node is being emitted. */ | |
43 | /* #define LTO_STREAMER_DEBUG 1 */ | |
44 | ||
45 | /* The encoding for a function consists of the following sections: | |
46 | ||
47 | 1) The header. | |
48 | 2) FIELD_DECLS. | |
49 | 3) FUNCTION_DECLS. | |
50 | 4) global VAR_DECLS. | |
51 | 5) type_decls | |
52 | 6) types. | |
53 | 7) Names for the labels that have names | |
54 | 8) The SSA names. | |
55 | 9) The control flow graph. | |
56 | 10-11)Gimple for local decls. | |
57 | 12) Gimple for the function. | |
58 | 13) Strings. | |
59 | ||
60 | 1) THE HEADER. | |
61 | 2-6) THE GLOBAL DECLS AND TYPES. | |
62 | ||
63 | The global decls and types are encoded in the same way. For each | |
64 | entry, there is word with the offset within the section to the | |
65 | entry. | |
66 | ||
48e1416a | 67 | 7) THE LABEL NAMES. |
7bfefa9d | 68 | |
69 | Since most labels do not have names, this section my be of zero | |
70 | length. It consists of an array of string table references, one | |
71 | per label. In the lto code, the labels are given either | |
72 | positive or negative indexes. the positive ones have names and | |
73 | the negative ones do not. The positive index can be used to | |
74 | find the name in this array. | |
75 | ||
48e1416a | 76 | 9) THE CFG. |
7bfefa9d | 77 | |
78 | 10) Index into the local decls. Since local decls can have local | |
79 | decls inside them, they must be read in randomly in order to | |
48e1416a | 80 | properly restore them. |
7bfefa9d | 81 | |
82 | 11-12) GIMPLE FOR THE LOCAL DECLS AND THE FUNCTION BODY. | |
83 | ||
84 | The gimple consists of a set of records. | |
85 | ||
86 | THE FUNCTION | |
48e1416a | 87 | |
7bfefa9d | 88 | At the top level of (8) is the function. It consists of five |
89 | pieces: | |
90 | ||
91 | LTO_function - The tag. | |
92 | eh tree - This is all of the exception handling regions | |
93 | put out in a post order traversial of the | |
94 | tree. Siblings are output as lists terminated | |
95 | by a 0. The set of fields matches the fields | |
96 | defined in except.c. | |
97 | ||
98 | last_basic_block - in uleb128 form. | |
99 | ||
100 | basic blocks - This is the set of basic blocks. | |
101 | ||
102 | zero - The termination of the basic blocks. | |
103 | ||
104 | BASIC BLOCKS | |
105 | ||
106 | There are two forms of basic blocks depending on if they are | |
107 | empty or not. | |
108 | ||
109 | The basic block consists of: | |
110 | ||
111 | LTO_bb1 or LTO_bb0 - The tag. | |
112 | ||
113 | bb->index - the index in uleb128 form. | |
114 | ||
115 | #succs - The number of successors un uleb128 form. | |
116 | ||
117 | the successors - For each edge, a pair. The first of the | |
118 | pair is the index of the successor in | |
119 | uleb128 form and the second are the flags in | |
120 | uleb128 form. | |
121 | ||
122 | the statements - A gimple tree, as described above. | |
123 | These are only present for LTO_BB1. | |
124 | Following each statement is an optional | |
125 | exception handling record LTO_eh_region | |
126 | which contains the region number (for | |
127 | regions >= 0). | |
128 | ||
129 | zero - This is only present for LTO_BB1 and is used | |
130 | to terminate the statements and exception | |
131 | regions within this block. | |
132 | ||
133 | 12) STRINGS | |
134 | ||
135 | String are represented in the table as pairs, a length in ULEB128 | |
136 | form followed by the data for the string. */ | |
137 | ||
138 | /* The string that is the prefix on the section names we make for lto. | |
139 | For decls the DECL_ASSEMBLER_NAME is appended to make the section | |
140 | name for the functions and static_initializers. For other types of | |
141 | sections a '.' and the section type are appended. */ | |
142 | #define LTO_SECTION_NAME_PREFIX ".gnu.lto_" | |
143 | ||
389fec94 | 144 | #define LTO_major_version 2 |
65d1b157 | 145 | #define LTO_minor_version 1 |
7bfefa9d | 146 | |
147 | typedef unsigned char lto_decl_flags_t; | |
148 | ||
149 | ||
7bfefa9d | 150 | /* Tags representing the various IL objects written to the bytecode file |
151 | (GIMPLE statements, basic blocks, EH regions, tree nodes, etc). | |
152 | ||
153 | NOTE, when adding new LTO tags, also update lto_tag_name. */ | |
48e1416a | 154 | enum LTO_tags |
7bfefa9d | 155 | { |
156 | LTO_null = 0, | |
157 | ||
158 | /* Reserve enough entries to fit all the tree and gimple codes handled | |
159 | by the streamer. This guarantees that: | |
160 | ||
161 | 1- Given a tree code C: | |
162 | enum LTO_tags tag == C + 1 | |
163 | ||
164 | 2- Given a gimple code C: | |
165 | enum LTO_tags tag == C + NUM_TREE_CODES + 1 | |
166 | ||
167 | Conversely, to map between LTO tags and tree/gimple codes, the | |
168 | reverse operation must be applied. */ | |
bb35cf1e | 169 | LTO_bb0 = 1 + MAX_TREE_CODES + LAST_AND_UNUSED_GIMPLE_CODE, |
7bfefa9d | 170 | LTO_bb1, |
171 | ||
172 | /* EH region holding the previous statement. */ | |
173 | LTO_eh_region, | |
174 | ||
175 | /* An MD or NORMAL builtin. Only the code and class are streamed out. */ | |
176 | LTO_builtin_decl, | |
177 | ||
178 | /* Function body. */ | |
179 | LTO_function, | |
180 | ||
181 | /* EH table. */ | |
182 | LTO_eh_table, | |
183 | ||
184 | /* EH region types. These mirror enum eh_region_type. */ | |
185 | LTO_ert_cleanup, | |
186 | LTO_ert_try, | |
187 | LTO_ert_allowed_exceptions, | |
188 | LTO_ert_must_not_throw, | |
189 | ||
190 | /* EH landing pad. */ | |
191 | LTO_eh_landing_pad, | |
192 | ||
193 | /* EH try/catch node. */ | |
194 | LTO_eh_catch, | |
195 | ||
196 | /* Special for global streamer. Reference to previously-streamed node. */ | |
197 | LTO_tree_pickle_reference, | |
198 | ||
199 | /* References to indexable tree nodes. These objects are stored in | |
200 | tables that are written separately from the function bodies that | |
201 | reference them. This way they can be instantiated even when the | |
202 | referencing functions aren't (e.g., during WPA) and it also allows | |
203 | functions to be copied from one file to another without having | |
204 | to unpickle the body first (the references are location | |
205 | independent). | |
206 | ||
207 | NOTE, do not regroup these values as the grouping is exposed | |
208 | in the range checks done in lto_input_tree. */ | |
209 | LTO_field_decl_ref, /* Do not change. */ | |
210 | LTO_function_decl_ref, | |
211 | LTO_label_decl_ref, | |
212 | LTO_namespace_decl_ref, | |
213 | LTO_result_decl_ref, | |
214 | LTO_ssa_name_ref, | |
215 | LTO_type_decl_ref, | |
216 | LTO_type_ref, | |
217 | LTO_const_decl_ref, | |
218 | LTO_imported_decl_ref, | |
23bdc9ca | 219 | LTO_translation_unit_decl_ref, |
7bfefa9d | 220 | LTO_global_decl_ref, /* Do not change. */ |
221 | ||
222 | /* This tag must always be last. */ | |
223 | LTO_NUM_TAGS | |
224 | }; | |
225 | ||
226 | ||
227 | /* Set of section types that are in an LTO file. This list will grow | |
228 | as the number of IPA passes grows since each IPA pass will need its | |
229 | own section type to store its summary information. | |
230 | ||
231 | When adding a new section type, you must also extend the | |
232 | LTO_SECTION_NAME array in lto-section-in.c. */ | |
233 | enum lto_section_type | |
234 | { | |
235 | LTO_section_decls = 0, | |
236 | LTO_section_function_body, | |
237 | LTO_section_static_initializer, | |
02b699d5 | 238 | LTO_section_symtab, |
8d810329 | 239 | LTO_section_refs, |
65d1b157 | 240 | LTO_section_asm, |
8867b500 | 241 | LTO_section_jump_functions, |
7bfefa9d | 242 | LTO_section_ipa_pure_const, |
243 | LTO_section_ipa_reference, | |
02b699d5 | 244 | LTO_section_symtab_nodes, |
7bfefa9d | 245 | LTO_section_opts, |
1bf41320 | 246 | LTO_section_cgraph_opt_sum, |
c7b2cc59 | 247 | LTO_section_inline_summary, |
7bfefa9d | 248 | LTO_N_SECTION_TYPES /* Must be last. */ |
249 | }; | |
250 | ||
251 | /* Indices to the various function, type and symbol streams. */ | |
252 | typedef enum | |
253 | { | |
254 | LTO_DECL_STREAM_TYPE = 0, /* Must be first. */ | |
255 | LTO_DECL_STREAM_FIELD_DECL, | |
256 | LTO_DECL_STREAM_FN_DECL, | |
257 | LTO_DECL_STREAM_VAR_DECL, | |
258 | LTO_DECL_STREAM_TYPE_DECL, | |
259 | LTO_DECL_STREAM_NAMESPACE_DECL, | |
260 | LTO_DECL_STREAM_LABEL_DECL, | |
261 | LTO_N_DECL_STREAMS | |
262 | } lto_decl_stream_e_t; | |
263 | ||
264 | typedef enum ld_plugin_symbol_resolution ld_plugin_symbol_resolution_t; | |
265 | DEF_VEC_I(ld_plugin_symbol_resolution_t); | |
266 | DEF_VEC_ALLOC_I(ld_plugin_symbol_resolution_t, heap); | |
267 | ||
268 | ||
269 | /* Macro to define convenience functions for type and decl streams | |
48e1416a | 270 | in lto_file_decl_data. */ |
7bfefa9d | 271 | #define DEFINE_DECL_STREAM_FUNCS(UPPER_NAME, name) \ |
272 | static inline tree \ | |
273 | lto_file_decl_data_get_ ## name (struct lto_file_decl_data *data, \ | |
274 | unsigned int idx) \ | |
275 | { \ | |
276 | struct lto_in_decl_state *state = data->current_decl_state; \ | |
277 | gcc_assert (idx < state->streams[LTO_DECL_STREAM_## UPPER_NAME].size); \ | |
278 | return state->streams[LTO_DECL_STREAM_## UPPER_NAME].trees[idx]; \ | |
279 | } \ | |
280 | \ | |
281 | static inline unsigned int \ | |
282 | lto_file_decl_data_num_ ## name ## s (struct lto_file_decl_data *data) \ | |
283 | { \ | |
284 | struct lto_in_decl_state *state = data->current_decl_state; \ | |
285 | return state->streams[LTO_DECL_STREAM_## UPPER_NAME].size; \ | |
286 | } | |
287 | ||
288 | ||
289 | /* Return a char pointer to the start of a data stream for an lto pass | |
290 | or function. The first parameter is the file data that contains | |
291 | the information. The second parameter is the type of information | |
292 | to be obtained. The third parameter is the name of the function | |
48e1416a | 293 | and is only used when finding a function body; otherwise it is |
7bfefa9d | 294 | NULL. The fourth parameter is the length of the data returned. */ |
48e1416a | 295 | typedef const char* (lto_get_section_data_f) (struct lto_file_decl_data *, |
7bfefa9d | 296 | enum lto_section_type, |
48e1416a | 297 | const char *, |
7bfefa9d | 298 | size_t *); |
299 | ||
300 | /* Return the data found from the above call. The first three | |
301 | parameters are the same as above. The fourth parameter is the data | |
9d75589a | 302 | itself and the fifth is the length of the data. */ |
48e1416a | 303 | typedef void (lto_free_section_data_f) (struct lto_file_decl_data *, |
7bfefa9d | 304 | enum lto_section_type, |
305 | const char *, | |
306 | const char *, | |
307 | size_t); | |
308 | ||
7bfefa9d | 309 | /* Structure used as buffer for reading an LTO file. */ |
48e1416a | 310 | struct lto_input_block |
7bfefa9d | 311 | { |
312 | const char *data; | |
313 | unsigned int p; | |
314 | unsigned int len; | |
315 | }; | |
316 | ||
317 | #define LTO_INIT_INPUT_BLOCK(BASE,D,P,L) \ | |
318 | do { \ | |
319 | BASE.data = D; \ | |
320 | BASE.p = P; \ | |
321 | BASE.len = L; \ | |
322 | } while (0) | |
323 | ||
324 | #define LTO_INIT_INPUT_BLOCK_PTR(BASE,D,P,L) \ | |
325 | do { \ | |
326 | BASE->data = D; \ | |
327 | BASE->p = P; \ | |
328 | BASE->len = L; \ | |
329 | } while (0) | |
330 | ||
331 | ||
332 | /* The is the first part of the record for a function or constructor | |
333 | in the .o file. */ | |
334 | struct lto_header | |
335 | { | |
336 | int16_t major_version; | |
337 | int16_t minor_version; | |
7bfefa9d | 338 | }; |
339 | ||
340 | /* The header for a function body. */ | |
341 | struct lto_function_header | |
342 | { | |
343 | /* The header for all types of sections. */ | |
344 | struct lto_header lto_header; | |
345 | ||
346 | /* Number of labels with names. */ | |
347 | int32_t num_named_labels; | |
348 | ||
349 | /* Number of labels without names. */ | |
350 | int32_t num_unnamed_labels; | |
351 | ||
352 | /* Size compressed or 0 if not compressed. */ | |
353 | int32_t compressed_size; | |
354 | ||
355 | /* Size of names for named labels. */ | |
356 | int32_t named_label_size; | |
357 | ||
358 | /* Size of the cfg. */ | |
359 | int32_t cfg_size; | |
360 | ||
361 | /* Size of main gimple body of function. */ | |
362 | int32_t main_size; | |
363 | ||
364 | /* Size of the string table. */ | |
365 | int32_t string_size; | |
366 | }; | |
367 | ||
368 | ||
369 | /* Structure describing a symbol section. */ | |
370 | struct lto_decl_header | |
371 | { | |
372 | /* The header for all types of sections. */ | |
373 | struct lto_header lto_header; | |
374 | ||
375 | /* Size of region for decl state. */ | |
376 | int32_t decl_state_size; | |
377 | ||
378 | /* Number of nodes in globals stream. */ | |
379 | int32_t num_nodes; | |
380 | ||
381 | /* Size of region for expressions, decls, types, etc. */ | |
382 | int32_t main_size; | |
383 | ||
384 | /* Size of the string table. */ | |
385 | int32_t string_size; | |
386 | }; | |
387 | ||
388 | ||
65d1b157 | 389 | /* Structure describing top level asm()s. */ |
390 | struct lto_asm_header | |
391 | { | |
392 | /* The header for all types of sections. */ | |
393 | struct lto_header lto_header; | |
394 | ||
395 | /* Size compressed or 0 if not compressed. */ | |
396 | int32_t compressed_size; | |
397 | ||
398 | /* Size of region for expressions, decls, types, etc. */ | |
399 | int32_t main_size; | |
400 | ||
401 | /* Size of the string table. */ | |
402 | int32_t string_size; | |
403 | }; | |
404 | ||
405 | ||
7bfefa9d | 406 | /* Statistics gathered during LTO, WPA and LTRANS. */ |
407 | struct lto_stats_d | |
408 | { | |
409 | unsigned HOST_WIDE_INT num_input_cgraph_nodes; | |
5cf7e051 | 410 | unsigned HOST_WIDE_INT num_output_symtab_nodes; |
7bfefa9d | 411 | unsigned HOST_WIDE_INT num_input_files; |
412 | unsigned HOST_WIDE_INT num_output_files; | |
413 | unsigned HOST_WIDE_INT num_cgraph_partitions; | |
414 | unsigned HOST_WIDE_INT section_size[LTO_N_SECTION_TYPES]; | |
415 | unsigned HOST_WIDE_INT num_function_bodies; | |
416 | unsigned HOST_WIDE_INT num_trees[NUM_TREE_CODES]; | |
417 | unsigned HOST_WIDE_INT num_output_il_bytes; | |
418 | unsigned HOST_WIDE_INT num_compressed_il_bytes; | |
419 | unsigned HOST_WIDE_INT num_input_il_bytes; | |
420 | unsigned HOST_WIDE_INT num_uncompressed_il_bytes; | |
421 | }; | |
422 | ||
5cf7e051 | 423 | /* Entry of LTO symtab encoder. */ |
424 | typedef struct | |
425 | { | |
426 | symtab_node node; | |
427 | /* Is the node in this partition (i.e. ltrans of this partition will | |
428 | be responsible for outputting it)? */ | |
429 | unsigned int in_partition:1; | |
430 | /* Do we encode body in this partition? */ | |
431 | unsigned int body:1; | |
432 | /* Do we encode initializer in this partition? | |
433 | For example the readonly variable initializers are encoded to aid | |
434 | constant folding even if they are not in the partition. */ | |
435 | unsigned int initializer:1; | |
436 | } lto_encoder_entry; | |
437 | ||
438 | DEF_VEC_O(lto_encoder_entry); | |
439 | DEF_VEC_ALLOC_O(lto_encoder_entry, heap); | |
440 | ||
7bfefa9d | 441 | /* Encoder data structure used to stream callgraph nodes. */ |
70225339 | 442 | struct lto_symtab_encoder_d |
7bfefa9d | 443 | { |
5cf7e051 | 444 | VEC(lto_encoder_entry,gc) *nodes; |
445 | pointer_map_t *map; | |
a238367f | 446 | }; |
70225339 | 447 | |
448 | typedef struct lto_symtab_encoder_d *lto_symtab_encoder_t; | |
a238367f | 449 | |
eab36a5a | 450 | /* Iterator structure for cgraph node sets. */ |
451 | typedef struct | |
8ade54d2 | 452 | { |
eab36a5a | 453 | lto_symtab_encoder_t encoder; |
454 | unsigned index; | |
455 | } lto_symtab_encoder_iterator; | |
456 | ||
457 | ||
458 | ||
8ade54d2 | 459 | |
7bfefa9d | 460 | /* Mapping from indices to trees. */ |
57305941 | 461 | struct GTY(()) lto_tree_ref_table |
7bfefa9d | 462 | { |
463 | /* Array of referenced trees . */ | |
57305941 | 464 | tree * GTY((length ("%h.size"))) trees; |
7bfefa9d | 465 | |
466 | /* Size of array. */ | |
467 | unsigned int size; | |
468 | }; | |
469 | ||
470 | ||
471 | /* Mapping between trees and slots in an array. */ | |
472 | struct lto_decl_slot | |
473 | { | |
474 | tree t; | |
475 | int slot_num; | |
476 | }; | |
477 | ||
478 | ||
479 | /* The lto_tree_ref_encoder struct is used to encode trees into indices. */ | |
480 | ||
481 | struct lto_tree_ref_encoder | |
482 | { | |
483 | htab_t tree_hash_table; /* Maps pointers to indices. */ | |
484 | unsigned int next_index; /* Next available index. */ | |
485 | VEC(tree,heap) *trees; /* Maps indices to pointers. */ | |
486 | }; | |
487 | ||
488 | ||
489 | /* Structure to hold states of input scope. */ | |
57305941 | 490 | struct GTY(()) lto_in_decl_state |
7bfefa9d | 491 | { |
492 | /* Array of lto_in_decl_buffers to store type and decls streams. */ | |
493 | struct lto_tree_ref_table streams[LTO_N_DECL_STREAMS]; | |
494 | ||
495 | /* If this in-decl state is associated with a function. FN_DECL | |
496 | point to the FUNCTION_DECL. */ | |
497 | tree fn_decl; | |
498 | }; | |
499 | ||
500 | typedef struct lto_in_decl_state *lto_in_decl_state_ptr; | |
501 | ||
502 | ||
503 | /* The structure that holds all of the vectors of global types, | |
504 | decls and cgraph nodes used in the serialization of this file. */ | |
505 | struct lto_out_decl_state | |
506 | { | |
507 | /* The buffers contain the sets of decls of various kinds and types we have | |
508 | seen so far and the indexes assigned to them. */ | |
509 | struct lto_tree_ref_encoder streams[LTO_N_DECL_STREAMS]; | |
510 | ||
511 | /* Encoder for cgraph nodes. */ | |
70225339 | 512 | lto_symtab_encoder_t symtab_node_encoder; |
a238367f | 513 | |
7bfefa9d | 514 | /* If this out-decl state belongs to a function, fn_decl points to that |
515 | function. Otherwise, it is NULL. */ | |
516 | tree fn_decl; | |
517 | }; | |
518 | ||
519 | typedef struct lto_out_decl_state *lto_out_decl_state_ptr; | |
520 | ||
521 | DEF_VEC_P(lto_out_decl_state_ptr); | |
522 | DEF_VEC_ALLOC_P(lto_out_decl_state_ptr, heap); | |
523 | ||
b5c89d58 | 524 | /* Compact representation of a index <-> resolution pair. Unpacked to an |
525 | vector later. */ | |
526 | struct res_pair | |
527 | { | |
528 | ld_plugin_symbol_resolution_t res; | |
529 | unsigned index; | |
530 | }; | |
531 | typedef struct res_pair res_pair; | |
532 | ||
533 | DEF_VEC_O(res_pair); | |
534 | DEF_VEC_ALLOC_O(res_pair, heap); | |
535 | ||
7bfefa9d | 536 | /* One of these is allocated for each object file that being compiled |
537 | by lto. This structure contains the tables that are needed by the | |
538 | serialized functions and ipa passes to connect themselves to the | |
539 | global types and decls as they are reconstituted. */ | |
57305941 | 540 | struct GTY(()) lto_file_decl_data |
7bfefa9d | 541 | { |
542 | /* Decl state currently used. */ | |
543 | struct lto_in_decl_state *current_decl_state; | |
544 | ||
545 | /* Decl state corresponding to regions outside of any functions | |
546 | in the compilation unit. */ | |
547 | struct lto_in_decl_state *global_decl_state; | |
548 | ||
549 | /* Table of cgraph nodes present in this file. */ | |
70225339 | 550 | lto_symtab_encoder_t GTY((skip)) symtab_node_encoder; |
a238367f | 551 | |
7bfefa9d | 552 | /* Hash table maps lto-related section names to location in file. */ |
57305941 | 553 | htab_t GTY((param_is (struct lto_in_decl_state))) function_decl_states; |
7bfefa9d | 554 | |
555 | /* The .o file that these offsets relate to. */ | |
57305941 | 556 | const char *GTY((skip)) file_name; |
7bfefa9d | 557 | |
7bfefa9d | 558 | /* Hash table maps lto-related section names to location in file. */ |
57305941 | 559 | htab_t GTY((skip)) section_hash_table; |
7bfefa9d | 560 | |
561 | /* Hash new name of renamed global declaration to its original name. */ | |
57305941 | 562 | htab_t GTY((skip)) renaming_hash_table; |
f18bad33 | 563 | |
564 | /* Linked list used temporarily in reader */ | |
565 | struct lto_file_decl_data *next; | |
566 | ||
567 | /* Sub ID for merged objects. */ | |
badc6cfa | 568 | unsigned HOST_WIDE_INT id; |
f18bad33 | 569 | |
570 | /* Symbol resolutions for this file */ | |
b5c89d58 | 571 | VEC(res_pair, heap) * GTY((skip)) respairs; |
572 | unsigned max_index; | |
c470c5a9 | 573 | |
574 | struct gcov_ctr_summary GTY((skip)) profile_info; | |
7bfefa9d | 575 | }; |
576 | ||
ba72912a | 577 | typedef struct lto_file_decl_data *lto_file_decl_data_ptr; |
578 | ||
7bfefa9d | 579 | struct lto_char_ptr_base |
580 | { | |
581 | char *ptr; | |
582 | }; | |
583 | ||
584 | /* An incore byte stream to buffer the various parts of the function. | |
585 | The entire structure should be zeroed when created. The record | |
586 | consists of a set of blocks. The first sizeof (ptr) bytes are used | |
587 | as a chain, and the rest store the bytes to be written. */ | |
588 | struct lto_output_stream | |
589 | { | |
590 | /* The pointer to the first block in the stream. */ | |
591 | struct lto_char_ptr_base * first_block; | |
592 | ||
593 | /* The pointer to the last and current block in the stream. */ | |
594 | struct lto_char_ptr_base * current_block; | |
595 | ||
596 | /* The pointer to where the next char should be written. */ | |
597 | char * current_pointer; | |
598 | ||
599 | /* The number of characters left in the current block. */ | |
600 | unsigned int left_in_block; | |
601 | ||
602 | /* The block size of the last block allocated. */ | |
603 | unsigned int block_size; | |
604 | ||
605 | /* The total number of characters written. */ | |
606 | unsigned int total_size; | |
607 | }; | |
608 | ||
609 | /* The is the first part of the record in an LTO file for many of the | |
610 | IPA passes. */ | |
611 | struct lto_simple_header | |
612 | { | |
613 | /* The header for all types of sections. */ | |
614 | struct lto_header lto_header; | |
615 | ||
616 | /* Size of main gimple body of function. */ | |
617 | int32_t main_size; | |
618 | ||
619 | /* Size of main stream when compressed. */ | |
620 | int32_t compressed_size; | |
621 | }; | |
622 | ||
623 | /* A simple output block. This can be used for simple IPA passes that | |
624 | do not need more than one stream. */ | |
625 | struct lto_simple_output_block | |
626 | { | |
627 | enum lto_section_type section_type; | |
628 | struct lto_out_decl_state *decl_state; | |
629 | ||
630 | /* The stream that the main tree codes are written to. */ | |
631 | struct lto_output_stream *main_stream; | |
632 | }; | |
633 | ||
634 | /* Data structure holding all the data and descriptors used when writing | |
635 | an LTO file. */ | |
636 | struct output_block | |
637 | { | |
638 | enum lto_section_type section_type; | |
639 | struct lto_out_decl_state *decl_state; | |
640 | ||
641 | /* The stream that the main tree codes are written to. */ | |
642 | struct lto_output_stream *main_stream; | |
643 | ||
644 | /* The stream that contains the string table. */ | |
645 | struct lto_output_stream *string_stream; | |
646 | ||
647 | /* The stream that contains the cfg. */ | |
648 | struct lto_output_stream *cfg_stream; | |
649 | ||
650 | /* The hash table that contains the set of strings we have seen so | |
651 | far and the indexes assigned to them. */ | |
652 | htab_t string_hash_table; | |
653 | ||
654 | /* The current cgraph_node that we are currently serializing. Null | |
655 | if we are serializing something else. */ | |
656 | struct cgraph_node *cgraph_node; | |
657 | ||
658 | /* These are the last file and line that were seen in the stream. | |
659 | If the current node differs from these, it needs to insert | |
660 | something into the stream and fix these up. */ | |
661 | const char *current_file; | |
662 | int current_line; | |
663 | int current_col; | |
664 | ||
665 | /* True if writing globals and types. */ | |
666 | bool global; | |
667 | ||
668 | /* Cache of nodes written in this section. */ | |
7f385784 | 669 | struct streamer_tree_cache_d *writer_cache; |
894593c8 | 670 | |
671 | /* All data persistent across whole duration of output block | |
672 | can go here. */ | |
673 | struct obstack obstack; | |
7bfefa9d | 674 | }; |
675 | ||
676 | ||
677 | /* Data and descriptors used when reading from an LTO file. */ | |
678 | struct data_in | |
679 | { | |
680 | /* The global decls and types. */ | |
681 | struct lto_file_decl_data *file_data; | |
682 | ||
683 | /* All of the labels. */ | |
684 | tree *labels; | |
685 | ||
686 | /* The string table. */ | |
687 | const char *strings; | |
688 | ||
689 | /* The length of the string table. */ | |
690 | unsigned int strings_len; | |
691 | ||
692 | /* Number of named labels. Used to find the index of unnamed labels | |
693 | since they share space with the named labels. */ | |
48e1416a | 694 | unsigned int num_named_labels; |
7bfefa9d | 695 | |
696 | /* Number of unnamed labels. */ | |
697 | unsigned int num_unnamed_labels; | |
698 | ||
699 | const char *current_file; | |
700 | int current_line; | |
701 | int current_col; | |
702 | ||
703 | /* Maps each reference number to the resolution done by the linker. */ | |
704 | VEC(ld_plugin_symbol_resolution_t,heap) *globals_resolution; | |
705 | ||
706 | /* Cache of pickled nodes. */ | |
7f385784 | 707 | struct streamer_tree_cache_d *reader_cache; |
7bfefa9d | 708 | }; |
709 | ||
710 | ||
711 | /* In lto-section-in.c */ | |
712 | extern struct lto_input_block * lto_create_simple_input_block ( | |
48e1416a | 713 | struct lto_file_decl_data *, |
7bfefa9d | 714 | enum lto_section_type, const char **, size_t *); |
715 | extern void | |
48e1416a | 716 | lto_destroy_simple_input_block (struct lto_file_decl_data *, |
7bfefa9d | 717 | enum lto_section_type, |
718 | struct lto_input_block *, const char *, size_t); | |
48e1416a | 719 | extern void lto_set_in_hooks (struct lto_file_decl_data **, |
7bfefa9d | 720 | lto_get_section_data_f *, |
721 | lto_free_section_data_f *); | |
722 | extern struct lto_file_decl_data **lto_get_file_decl_data (void); | |
723 | extern const char *lto_get_section_data (struct lto_file_decl_data *, | |
724 | enum lto_section_type, | |
725 | const char *, size_t *); | |
726 | extern void lto_free_section_data (struct lto_file_decl_data *, | |
727 | enum lto_section_type, | |
728 | const char *, const char *, size_t); | |
7bfefa9d | 729 | extern htab_t lto_create_renaming_table (void); |
730 | extern void lto_record_renamed_decl (struct lto_file_decl_data *, | |
731 | const char *, const char *); | |
732 | extern const char *lto_get_decl_name_mapping (struct lto_file_decl_data *, | |
733 | const char *); | |
734 | extern struct lto_in_decl_state *lto_new_in_decl_state (void); | |
735 | extern void lto_delete_in_decl_state (struct lto_in_decl_state *); | |
736 | extern hashval_t lto_hash_in_decl_state (const void *); | |
737 | extern int lto_eq_in_decl_state (const void *, const void *); | |
738 | extern struct lto_in_decl_state *lto_get_function_in_decl_state ( | |
739 | struct lto_file_decl_data *, tree); | |
673ca05f | 740 | extern void lto_section_overrun (struct lto_input_block *) ATTRIBUTE_NORETURN; |
5f8d4adf | 741 | extern void lto_value_range_error (const char *, |
742 | HOST_WIDE_INT, HOST_WIDE_INT, | |
743 | HOST_WIDE_INT) ATTRIBUTE_NORETURN; | |
7bfefa9d | 744 | |
745 | /* In lto-section-out.c */ | |
746 | extern hashval_t lto_hash_decl_slot_node (const void *); | |
747 | extern int lto_eq_decl_slot_node (const void *, const void *); | |
748 | extern hashval_t lto_hash_type_slot_node (const void *); | |
749 | extern int lto_eq_type_slot_node (const void *, const void *); | |
750 | extern void lto_begin_section (const char *, bool); | |
751 | extern void lto_end_section (void); | |
752 | extern void lto_write_stream (struct lto_output_stream *); | |
7bfefa9d | 753 | extern void lto_output_data_stream (struct lto_output_stream *, const void *, |
754 | size_t); | |
7bfefa9d | 755 | extern bool lto_output_decl_index (struct lto_output_stream *, |
756 | struct lto_tree_ref_encoder *, | |
757 | tree, unsigned int *); | |
758 | extern void lto_output_field_decl_index (struct lto_out_decl_state *, | |
759 | struct lto_output_stream *, tree); | |
760 | extern void lto_output_fn_decl_index (struct lto_out_decl_state *, | |
761 | struct lto_output_stream *, tree); | |
762 | extern void lto_output_namespace_decl_index (struct lto_out_decl_state *, | |
763 | struct lto_output_stream *, tree); | |
764 | extern void lto_output_var_decl_index (struct lto_out_decl_state *, | |
765 | struct lto_output_stream *, tree); | |
766 | extern void lto_output_type_decl_index (struct lto_out_decl_state *, | |
767 | struct lto_output_stream *, tree); | |
768 | extern void lto_output_type_ref_index (struct lto_out_decl_state *, | |
769 | struct lto_output_stream *, tree); | |
770 | extern struct lto_simple_output_block *lto_create_simple_output_block ( | |
771 | enum lto_section_type); | |
772 | extern void lto_destroy_simple_output_block (struct lto_simple_output_block *); | |
773 | extern struct lto_out_decl_state *lto_new_out_decl_state (void); | |
774 | extern void lto_delete_out_decl_state (struct lto_out_decl_state *); | |
775 | extern struct lto_out_decl_state *lto_get_out_decl_state (void); | |
776 | extern void lto_push_out_decl_state (struct lto_out_decl_state *); | |
777 | extern struct lto_out_decl_state *lto_pop_out_decl_state (void); | |
778 | extern void lto_record_function_out_decl_state (tree, | |
779 | struct lto_out_decl_state *); | |
673ca05f | 780 | extern void lto_append_block (struct lto_output_stream *); |
7bfefa9d | 781 | |
782 | ||
783 | /* In lto-streamer.c. */ | |
784 | extern const char *lto_tag_name (enum LTO_tags); | |
785 | extern bitmap lto_bitmap_alloc (void); | |
786 | extern void lto_bitmap_free (bitmap); | |
f18bad33 | 787 | extern char *lto_get_section_name (int, const char *, struct lto_file_decl_data *); |
7bfefa9d | 788 | extern void print_lto_report (void); |
7bfefa9d | 789 | extern void lto_streamer_init (void); |
790 | extern bool gate_lto_out (void); | |
791 | #ifdef LTO_STREAMER_DEBUG | |
792 | extern void lto_orig_address_map (tree, intptr_t); | |
793 | extern intptr_t lto_orig_address_get (tree); | |
794 | extern void lto_orig_address_remove (tree); | |
795 | #endif | |
796 | extern void lto_check_version (int, int); | |
a0605d65 | 797 | extern void lto_streamer_hooks_init (void); |
7bfefa9d | 798 | |
799 | /* In lto-streamer-in.c */ | |
7bfefa9d | 800 | extern void lto_input_cgraph (struct lto_file_decl_data *, const char *); |
a0605d65 | 801 | extern void lto_reader_init (void); |
7bfefa9d | 802 | extern void lto_input_function_body (struct lto_file_decl_data *, tree, |
803 | const char *); | |
804 | extern void lto_input_constructors_and_inits (struct lto_file_decl_data *, | |
805 | const char *); | |
f1007c72 | 806 | extern void lto_input_toplevel_asms (struct lto_file_decl_data *, int); |
7bfefa9d | 807 | extern struct data_in *lto_data_in_create (struct lto_file_decl_data *, |
808 | const char *, unsigned, | |
809 | VEC(ld_plugin_symbol_resolution_t,heap) *); | |
810 | extern void lto_data_in_delete (struct data_in *); | |
284cc480 | 811 | extern void lto_input_data_block (struct lto_input_block *, void *, size_t); |
2541503d | 812 | location_t lto_input_location (struct lto_input_block *, struct data_in *); |
813 | tree lto_input_tree_ref (struct lto_input_block *, struct data_in *, | |
814 | struct function *, enum LTO_tags); | |
815 | void lto_tag_check_set (enum LTO_tags, int, ...); | |
816 | void lto_init_eh (void); | |
515cf651 | 817 | tree lto_input_tree (struct lto_input_block *, struct data_in *); |
7bfefa9d | 818 | |
819 | ||
820 | /* In lto-streamer-out.c */ | |
821 | extern void lto_register_decl_definition (tree, struct lto_file_decl_data *); | |
822 | extern struct output_block *create_output_block (enum lto_section_type); | |
823 | extern void destroy_output_block (struct output_block *); | |
57bcbbf6 | 824 | extern void lto_output_tree (struct output_block *, tree, bool, bool); |
65d1b157 | 825 | extern void lto_output_toplevel_asms (void); |
8867b500 | 826 | extern void produce_asm (struct output_block *ob, tree fn); |
284cc480 | 827 | void lto_output_decl_state_streams (struct output_block *, |
828 | struct lto_out_decl_state *); | |
829 | void lto_output_decl_state_refs (struct output_block *, | |
830 | struct lto_output_stream *, | |
831 | struct lto_out_decl_state *); | |
2541503d | 832 | void lto_output_location (struct output_block *, location_t); |
7bfefa9d | 833 | |
834 | ||
835 | /* In lto-cgraph.c */ | |
70225339 | 836 | lto_symtab_encoder_t lto_symtab_encoder_new (void); |
837 | int lto_symtab_encoder_encode (lto_symtab_encoder_t, symtab_node); | |
838 | void lto_symtab_encoder_delete (lto_symtab_encoder_t); | |
5cf7e051 | 839 | bool lto_symtab_encoder_delete_node (lto_symtab_encoder_t, symtab_node); |
70225339 | 840 | bool lto_symtab_encoder_encode_body_p (lto_symtab_encoder_t, |
02b2818c | 841 | struct cgraph_node *); |
eab36a5a | 842 | bool lto_symtab_encoder_in_partition_p (lto_symtab_encoder_t, |
843 | symtab_node); | |
844 | void lto_set_symtab_encoder_in_partition (lto_symtab_encoder_t, | |
845 | symtab_node); | |
02b2818c | 846 | |
70225339 | 847 | bool lto_symtab_encoder_encode_initializer_p (lto_symtab_encoder_t, |
848 | struct varpool_node *); | |
eab36a5a | 849 | void output_symtab (void); |
02b699d5 | 850 | void input_symtab (void); |
8d810329 | 851 | bool referenced_from_other_partition_p (struct ipa_ref_list *, |
eab36a5a | 852 | lto_symtab_encoder_t); |
25429dc2 | 853 | bool reachable_from_other_partition_p (struct cgraph_node *, |
eab36a5a | 854 | lto_symtab_encoder_t); |
d97be713 | 855 | bool referenced_from_this_partition_p (struct ipa_ref_list *, |
eab36a5a | 856 | lto_symtab_encoder_t); |
d97be713 | 857 | bool reachable_from_this_partition_p (struct cgraph_node *, |
eab36a5a | 858 | lto_symtab_encoder_t); |
d97be713 | 859 | void compute_ltrans_boundary (struct lto_out_decl_state *state, |
5cf7e051 | 860 | lto_symtab_encoder_t encoder); |
7bfefa9d | 861 | |
862 | ||
863 | /* In lto-symtab.c. */ | |
fd193bcd | 864 | extern void lto_symtab_register_decl (tree, ld_plugin_symbol_resolution_t, |
865 | struct lto_file_decl_data *); | |
866 | extern void lto_symtab_merge_decls (void); | |
21ce3cc7 | 867 | extern void lto_symtab_merge_cgraph_nodes (void); |
7bfefa9d | 868 | extern tree lto_symtab_prevailing_decl (tree decl); |
869 | extern enum ld_plugin_symbol_resolution lto_symtab_get_resolution (tree decl); | |
25429dc2 | 870 | extern void lto_symtab_free (void); |
30865946 | 871 | extern GTY(()) VEC(tree,gc) *lto_global_var_decls; |
7bfefa9d | 872 | |
873 | ||
874 | /* In lto-opts.c. */ | |
7bfefa9d | 875 | extern void lto_write_options (void); |
7bfefa9d | 876 | |
877 | ||
878 | /* In lto-wpa-fixup.c */ | |
879 | void lto_mark_nothrow_fndecl (tree); | |
880 | void lto_fixup_nothrow_decls (void); | |
881 | ||
882 | ||
883 | /* Statistics gathered during LTO, WPA and LTRANS. */ | |
884 | extern struct lto_stats_d lto_stats; | |
885 | ||
886 | /* Section names corresponding to the values of enum lto_section_type. */ | |
887 | extern const char *lto_section_name[]; | |
888 | ||
889 | /* Holds all the out decl states of functions output so far in the | |
890 | current output file. */ | |
891 | extern VEC(lto_out_decl_state_ptr, heap) *lto_function_decl_states; | |
892 | ||
893 | /* Return true if LTO tag TAG corresponds to a tree code. */ | |
894 | static inline bool | |
895 | lto_tag_is_tree_code_p (enum LTO_tags tag) | |
896 | { | |
bb35cf1e | 897 | return tag > LTO_null && (unsigned) tag <= MAX_TREE_CODES; |
7bfefa9d | 898 | } |
899 | ||
900 | ||
901 | /* Return true if LTO tag TAG corresponds to a gimple code. */ | |
902 | static inline bool | |
903 | lto_tag_is_gimple_code_p (enum LTO_tags tag) | |
904 | { | |
905 | return (unsigned) tag >= NUM_TREE_CODES + 1 | |
906 | && (unsigned) tag < 1 + NUM_TREE_CODES + LAST_AND_UNUSED_GIMPLE_CODE; | |
907 | } | |
908 | ||
909 | ||
910 | /* Return the LTO tag corresponding to gimple code CODE. See enum | |
911 | LTO_tags for details on the conversion. */ | |
912 | static inline enum LTO_tags | |
913 | lto_gimple_code_to_tag (enum gimple_code code) | |
914 | { | |
915 | return (enum LTO_tags) ((unsigned) code + NUM_TREE_CODES + 1); | |
916 | } | |
917 | ||
918 | ||
919 | /* Return the GIMPLE code corresponding to TAG. See enum LTO_tags for | |
920 | details on the conversion. */ | |
921 | static inline enum gimple_code | |
922 | lto_tag_to_gimple_code (enum LTO_tags tag) | |
923 | { | |
924 | gcc_assert (lto_tag_is_gimple_code_p (tag)); | |
925 | return (enum gimple_code) ((unsigned) tag - NUM_TREE_CODES - 1); | |
926 | } | |
927 | ||
928 | ||
929 | /* Return the LTO tag corresponding to tree code CODE. See enum | |
930 | LTO_tags for details on the conversion. */ | |
931 | static inline enum LTO_tags | |
932 | lto_tree_code_to_tag (enum tree_code code) | |
933 | { | |
934 | return (enum LTO_tags) ((unsigned) code + 1); | |
935 | } | |
936 | ||
937 | ||
938 | /* Return the tree code corresponding to TAG. See enum LTO_tags for | |
939 | details on the conversion. */ | |
940 | static inline enum tree_code | |
941 | lto_tag_to_tree_code (enum LTO_tags tag) | |
942 | { | |
943 | gcc_assert (lto_tag_is_tree_code_p (tag)); | |
944 | return (enum tree_code) ((unsigned) tag - 1); | |
945 | } | |
946 | ||
2541503d | 947 | /* Check that tag ACTUAL == EXPECTED. */ |
948 | static inline void | |
949 | lto_tag_check (enum LTO_tags actual, enum LTO_tags expected) | |
950 | { | |
951 | if (actual != expected) | |
952 | internal_error ("bytecode stream: expected tag %s instead of %s", | |
953 | lto_tag_name (expected), lto_tag_name (actual)); | |
954 | } | |
955 | ||
956 | /* Check that tag ACTUAL is in the range [TAG1, TAG2]. */ | |
957 | static inline void | |
958 | lto_tag_check_range (enum LTO_tags actual, enum LTO_tags tag1, | |
959 | enum LTO_tags tag2) | |
960 | { | |
961 | if (actual < tag1 || actual > tag2) | |
962 | internal_error ("bytecode stream: tag %s is not in the expected range " | |
963 | "[%s, %s]", | |
964 | lto_tag_name (actual), | |
965 | lto_tag_name (tag1), | |
966 | lto_tag_name (tag2)); | |
967 | } | |
968 | ||
7bfefa9d | 969 | /* Initialize an lto_out_decl_buffer ENCODER. */ |
970 | static inline void | |
971 | lto_init_tree_ref_encoder (struct lto_tree_ref_encoder *encoder, | |
972 | htab_hash hash_fn, htab_eq eq_fn) | |
973 | { | |
974 | encoder->tree_hash_table = htab_create (37, hash_fn, eq_fn, free); | |
975 | encoder->next_index = 0; | |
976 | encoder->trees = NULL; | |
977 | } | |
978 | ||
979 | ||
9d75589a | 980 | /* Destroy an lto_tree_ref_encoder ENCODER by freeing its contents. The |
7bfefa9d | 981 | memory used by ENCODER is not freed by this function. */ |
982 | static inline void | |
983 | lto_destroy_tree_ref_encoder (struct lto_tree_ref_encoder *encoder) | |
984 | { | |
985 | /* Hash table may be delete already. */ | |
986 | if (encoder->tree_hash_table) | |
987 | htab_delete (encoder->tree_hash_table); | |
988 | VEC_free (tree, heap, encoder->trees); | |
989 | } | |
990 | ||
991 | /* Return the number of trees encoded in ENCODER. */ | |
992 | static inline unsigned int | |
993 | lto_tree_ref_encoder_size (struct lto_tree_ref_encoder *encoder) | |
994 | { | |
995 | return VEC_length (tree, encoder->trees); | |
996 | } | |
997 | ||
998 | /* Return the IDX-th tree in ENCODER. */ | |
999 | static inline tree | |
1000 | lto_tree_ref_encoder_get_tree (struct lto_tree_ref_encoder *encoder, | |
1001 | unsigned int idx) | |
1002 | { | |
1003 | return VEC_index (tree, encoder->trees, idx); | |
1004 | } | |
1005 | ||
1006 | ||
1007 | /* Return true if LABEL should be emitted in the global context. */ | |
1008 | static inline bool | |
1009 | emit_label_in_global_context_p (tree label) | |
1010 | { | |
1011 | return DECL_NONLOCAL (label) || FORCED_LABEL (label); | |
1012 | } | |
1013 | ||
eab36a5a | 1014 | /* Return number of encoded nodes in ENCODER. */ |
1015 | static inline int | |
1016 | lto_symtab_encoder_size (lto_symtab_encoder_t encoder) | |
1017 | { | |
5cf7e051 | 1018 | return VEC_length (lto_encoder_entry, encoder->nodes); |
1019 | } | |
1020 | ||
1021 | /* Value used to represent failure of lto_symtab_encoder_lookup. */ | |
1022 | #define LCC_NOT_FOUND (-1) | |
1023 | ||
1024 | /* Look up NODE in encoder. Return NODE's reference if it has been encoded | |
1025 | or LCC_NOT_FOUND if it is not there. */ | |
1026 | ||
1027 | static inline int | |
1028 | lto_symtab_encoder_lookup (lto_symtab_encoder_t encoder, | |
1029 | symtab_node node) | |
1030 | { | |
1031 | void **slot = pointer_map_contains (encoder->map, node); | |
1032 | return (slot && *slot ? (size_t) *(slot) - 1 : LCC_NOT_FOUND); | |
eab36a5a | 1033 | } |
1034 | ||
1035 | /* Return true if iterator LSE points to nothing. */ | |
1036 | static inline bool | |
1037 | lsei_end_p (lto_symtab_encoder_iterator lsei) | |
1038 | { | |
1039 | return lsei.index >= (unsigned)lto_symtab_encoder_size (lsei.encoder); | |
1040 | } | |
1041 | ||
1042 | /* Advance iterator LSE. */ | |
1043 | static inline void | |
1044 | lsei_next (lto_symtab_encoder_iterator *lsei) | |
1045 | { | |
1046 | lsei->index++; | |
1047 | } | |
1048 | ||
1049 | /* Return the node pointed to by LSI. */ | |
1050 | static inline symtab_node | |
1051 | lsei_node (lto_symtab_encoder_iterator lsei) | |
1052 | { | |
5cf7e051 | 1053 | return VEC_index (lto_encoder_entry, |
1054 | lsei.encoder->nodes, lsei.index).node; | |
eab36a5a | 1055 | } |
1056 | ||
1057 | /* Return the node pointed to by LSI. */ | |
1058 | static inline struct cgraph_node * | |
1059 | lsei_cgraph_node (lto_symtab_encoder_iterator lsei) | |
1060 | { | |
5cf7e051 | 1061 | return cgraph (VEC_index (lto_encoder_entry, |
1062 | lsei.encoder->nodes, lsei.index).node); | |
eab36a5a | 1063 | } |
1064 | ||
1065 | /* Return the node pointed to by LSI. */ | |
1066 | static inline struct varpool_node * | |
1067 | lsei_varpool_node (lto_symtab_encoder_iterator lsei) | |
1068 | { | |
5cf7e051 | 1069 | return varpool (VEC_index (lto_encoder_entry, |
1070 | lsei.encoder->nodes, lsei.index).node); | |
eab36a5a | 1071 | } |
1072 | ||
eab36a5a | 1073 | /* Return the cgraph node corresponding to REF using ENCODER. */ |
1074 | ||
1075 | static inline symtab_node | |
1076 | lto_symtab_encoder_deref (lto_symtab_encoder_t encoder, int ref) | |
1077 | { | |
1078 | if (ref == LCC_NOT_FOUND) | |
1079 | return NULL; | |
1080 | ||
5cf7e051 | 1081 | return VEC_index (lto_encoder_entry, encoder->nodes, ref).node; |
eab36a5a | 1082 | } |
1083 | ||
1084 | /* Return an iterator to the first node in LSI. */ | |
1085 | static inline lto_symtab_encoder_iterator | |
1086 | lsei_start (lto_symtab_encoder_t encoder) | |
1087 | { | |
1088 | lto_symtab_encoder_iterator lsei; | |
1089 | ||
1090 | lsei.encoder = encoder; | |
1091 | lsei.index = 0; | |
1092 | return lsei; | |
1093 | } | |
1094 | ||
1095 | /* Advance iterator LSE. */ | |
1096 | static inline void | |
1097 | lsei_next_in_partition (lto_symtab_encoder_iterator *lsei) | |
1098 | { | |
1099 | lsei_next (lsei); | |
1100 | while (!lsei_end_p (*lsei) | |
1101 | && !lto_symtab_encoder_in_partition_p (lsei->encoder, lsei_node (*lsei))) | |
1102 | lsei_next (lsei); | |
1103 | } | |
1104 | ||
1105 | /* Return an iterator to the first node in LSI. */ | |
1106 | static inline lto_symtab_encoder_iterator | |
1107 | lsei_start_in_partition (lto_symtab_encoder_t encoder) | |
1108 | { | |
1109 | lto_symtab_encoder_iterator lsei = lsei_start (encoder); | |
1110 | ||
1111 | if (lsei_end_p (lsei)) | |
1112 | return lsei; | |
1113 | if (!lto_symtab_encoder_in_partition_p (encoder, lsei_node (lsei))) | |
1114 | lsei_next_in_partition (&lsei); | |
1115 | ||
1116 | return lsei; | |
1117 | } | |
1118 | ||
1119 | /* Advance iterator LSE. */ | |
1120 | static inline void | |
1121 | lsei_next_function_in_partition (lto_symtab_encoder_iterator *lsei) | |
1122 | { | |
1123 | lsei_next (lsei); | |
1124 | while (!lsei_end_p (*lsei) | |
1125 | && (!symtab_function_p (lsei_node (*lsei)) | |
1126 | || !lto_symtab_encoder_in_partition_p (lsei->encoder, lsei_node (*lsei)))) | |
1127 | lsei_next (lsei); | |
1128 | } | |
1129 | ||
1130 | /* Return an iterator to the first node in LSI. */ | |
1131 | static inline lto_symtab_encoder_iterator | |
1132 | lsei_start_function_in_partition (lto_symtab_encoder_t encoder) | |
1133 | { | |
1134 | lto_symtab_encoder_iterator lsei = lsei_start (encoder); | |
1135 | ||
1136 | if (lsei_end_p (lsei)) | |
1137 | return lsei; | |
1138 | if (!symtab_function_p (lsei_node (lsei)) | |
1139 | || !lto_symtab_encoder_in_partition_p (encoder, lsei_node (lsei))) | |
1140 | lsei_next_function_in_partition (&lsei); | |
1141 | ||
1142 | return lsei; | |
1143 | } | |
1144 | ||
1145 | /* Advance iterator LSE. */ | |
1146 | static inline void | |
1147 | lsei_next_variable_in_partition (lto_symtab_encoder_iterator *lsei) | |
1148 | { | |
1149 | lsei_next (lsei); | |
1150 | while (!lsei_end_p (*lsei) | |
1151 | && (!symtab_variable_p (lsei_node (*lsei)) | |
1152 | || !lto_symtab_encoder_in_partition_p (lsei->encoder, lsei_node (*lsei)))) | |
1153 | lsei_next (lsei); | |
1154 | } | |
1155 | ||
1156 | /* Return an iterator to the first node in LSI. */ | |
1157 | static inline lto_symtab_encoder_iterator | |
1158 | lsei_start_variable_in_partition (lto_symtab_encoder_t encoder) | |
1159 | { | |
1160 | lto_symtab_encoder_iterator lsei = lsei_start (encoder); | |
1161 | ||
1162 | if (lsei_end_p (lsei)) | |
1163 | return lsei; | |
1164 | if (!symtab_variable_p (lsei_node (lsei)) | |
1165 | || !lto_symtab_encoder_in_partition_p (encoder, lsei_node (lsei))) | |
1166 | lsei_next_variable_in_partition (&lsei); | |
1167 | ||
1168 | return lsei; | |
1169 | } | |
1170 | ||
7bfefa9d | 1171 | DEFINE_DECL_STREAM_FUNCS (TYPE, type) |
1172 | DEFINE_DECL_STREAM_FUNCS (FIELD_DECL, field_decl) | |
1173 | DEFINE_DECL_STREAM_FUNCS (FN_DECL, fn_decl) | |
1174 | DEFINE_DECL_STREAM_FUNCS (VAR_DECL, var_decl) | |
1175 | DEFINE_DECL_STREAM_FUNCS (TYPE_DECL, type_decl) | |
1176 | DEFINE_DECL_STREAM_FUNCS (NAMESPACE_DECL, namespace_decl) | |
1177 | DEFINE_DECL_STREAM_FUNCS (LABEL_DECL, label_decl) | |
1178 | ||
1179 | #endif /* GCC_LTO_STREAMER_H */ |