]>
Commit | Line | Data |
---|---|---|
d7f09764 DN |
1 | /* Data structures and declarations used for reading and writing |
2 | GIMPLE to a file stream. | |
3 | ||
d1e082c2 | 4 | Copyright (C) 2009-2013 Free Software Foundation, Inc. |
d7f09764 DN |
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" | |
5c4f225f | 32 | #include "alloc-pool.h" |
db0bf14f | 33 | #include "gcov-io.h" |
f0efc7aa | 34 | #include "diagnostic.h" |
47c79d56 | 35 | |
d7f09764 DN |
36 | /* Define when debugging the LTO streamer. This causes the writer |
37 | to output the numeric value for the memory address of the tree node | |
38 | being emitted. When debugging a problem in the reader, check the | |
39 | original address that the writer was emitting using lto_orig_address_get. | |
40 | With this value, set a breakpoint in the writer (e.g., lto_output_tree) | |
41 | to trace how the faulty node is being emitted. */ | |
42 | /* #define LTO_STREAMER_DEBUG 1 */ | |
43 | ||
44 | /* The encoding for a function consists of the following sections: | |
45 | ||
46 | 1) The header. | |
47 | 2) FIELD_DECLS. | |
48 | 3) FUNCTION_DECLS. | |
49 | 4) global VAR_DECLS. | |
50 | 5) type_decls | |
51 | 6) types. | |
52 | 7) Names for the labels that have names | |
53 | 8) The SSA names. | |
54 | 9) The control flow graph. | |
55 | 10-11)Gimple for local decls. | |
56 | 12) Gimple for the function. | |
57 | 13) Strings. | |
58 | ||
59 | 1) THE HEADER. | |
60 | 2-6) THE GLOBAL DECLS AND TYPES. | |
61 | ||
62 | The global decls and types are encoded in the same way. For each | |
63 | entry, there is word with the offset within the section to the | |
64 | entry. | |
65 | ||
b8698a0f | 66 | 7) THE LABEL NAMES. |
d7f09764 DN |
67 | |
68 | Since most labels do not have names, this section my be of zero | |
69 | length. It consists of an array of string table references, one | |
70 | per label. In the lto code, the labels are given either | |
71 | positive or negative indexes. the positive ones have names and | |
72 | the negative ones do not. The positive index can be used to | |
73 | find the name in this array. | |
74 | ||
b8698a0f | 75 | 9) THE CFG. |
d7f09764 DN |
76 | |
77 | 10) Index into the local decls. Since local decls can have local | |
78 | decls inside them, they must be read in randomly in order to | |
b8698a0f | 79 | properly restore them. |
d7f09764 DN |
80 | |
81 | 11-12) GIMPLE FOR THE LOCAL DECLS AND THE FUNCTION BODY. | |
82 | ||
83 | The gimple consists of a set of records. | |
84 | ||
85 | THE FUNCTION | |
b8698a0f | 86 | |
d7f09764 DN |
87 | At the top level of (8) is the function. It consists of five |
88 | pieces: | |
89 | ||
90 | LTO_function - The tag. | |
91 | eh tree - This is all of the exception handling regions | |
92 | put out in a post order traversial of the | |
93 | tree. Siblings are output as lists terminated | |
94 | by a 0. The set of fields matches the fields | |
95 | defined in except.c. | |
96 | ||
97 | last_basic_block - in uleb128 form. | |
98 | ||
99 | basic blocks - This is the set of basic blocks. | |
100 | ||
101 | zero - The termination of the basic blocks. | |
102 | ||
103 | BASIC BLOCKS | |
104 | ||
105 | There are two forms of basic blocks depending on if they are | |
106 | empty or not. | |
107 | ||
108 | The basic block consists of: | |
109 | ||
110 | LTO_bb1 or LTO_bb0 - The tag. | |
111 | ||
112 | bb->index - the index in uleb128 form. | |
113 | ||
114 | #succs - The number of successors un uleb128 form. | |
115 | ||
116 | the successors - For each edge, a pair. The first of the | |
117 | pair is the index of the successor in | |
118 | uleb128 form and the second are the flags in | |
119 | uleb128 form. | |
120 | ||
121 | the statements - A gimple tree, as described above. | |
122 | These are only present for LTO_BB1. | |
123 | Following each statement is an optional | |
124 | exception handling record LTO_eh_region | |
125 | which contains the region number (for | |
126 | regions >= 0). | |
127 | ||
128 | zero - This is only present for LTO_BB1 and is used | |
129 | to terminate the statements and exception | |
130 | regions within this block. | |
131 | ||
132 | 12) STRINGS | |
133 | ||
134 | String are represented in the table as pairs, a length in ULEB128 | |
135 | form followed by the data for the string. */ | |
136 | ||
137 | /* The string that is the prefix on the section names we make for lto. | |
138 | For decls the DECL_ASSEMBLER_NAME is appended to make the section | |
139 | name for the functions and static_initializers. For other types of | |
140 | sections a '.' and the section type are appended. */ | |
141 | #define LTO_SECTION_NAME_PREFIX ".gnu.lto_" | |
142 | ||
8529e24b | 143 | #define LTO_major_version 2 |
9713d329 | 144 | #define LTO_minor_version 2 |
d7f09764 DN |
145 | |
146 | typedef unsigned char lto_decl_flags_t; | |
147 | ||
148 | ||
d7f09764 DN |
149 | /* Tags representing the various IL objects written to the bytecode file |
150 | (GIMPLE statements, basic blocks, EH regions, tree nodes, etc). | |
151 | ||
152 | NOTE, when adding new LTO tags, also update lto_tag_name. */ | |
b8698a0f | 153 | enum LTO_tags |
d7f09764 DN |
154 | { |
155 | LTO_null = 0, | |
156 | ||
157 | /* Reserve enough entries to fit all the tree and gimple codes handled | |
158 | by the streamer. This guarantees that: | |
159 | ||
160 | 1- Given a tree code C: | |
161 | enum LTO_tags tag == C + 1 | |
162 | ||
163 | 2- Given a gimple code C: | |
164 | enum LTO_tags tag == C + NUM_TREE_CODES + 1 | |
165 | ||
166 | Conversely, to map between LTO tags and tree/gimple codes, the | |
167 | reverse operation must be applied. */ | |
07233947 | 168 | LTO_bb0 = 1 + MAX_TREE_CODES + LAST_AND_UNUSED_GIMPLE_CODE, |
d7f09764 DN |
169 | LTO_bb1, |
170 | ||
171 | /* EH region holding the previous statement. */ | |
172 | LTO_eh_region, | |
173 | ||
174 | /* An MD or NORMAL builtin. Only the code and class are streamed out. */ | |
175 | LTO_builtin_decl, | |
176 | ||
c61f8c3b RG |
177 | /* Shared INTEGER_CST node. */ |
178 | LTO_integer_cst, | |
179 | ||
d7f09764 DN |
180 | /* Function body. */ |
181 | LTO_function, | |
182 | ||
183 | /* EH table. */ | |
184 | LTO_eh_table, | |
185 | ||
186 | /* EH region types. These mirror enum eh_region_type. */ | |
187 | LTO_ert_cleanup, | |
188 | LTO_ert_try, | |
189 | LTO_ert_allowed_exceptions, | |
190 | LTO_ert_must_not_throw, | |
191 | ||
192 | /* EH landing pad. */ | |
193 | LTO_eh_landing_pad, | |
194 | ||
195 | /* EH try/catch node. */ | |
196 | LTO_eh_catch, | |
197 | ||
198 | /* Special for global streamer. Reference to previously-streamed node. */ | |
199 | LTO_tree_pickle_reference, | |
200 | ||
201 | /* References to indexable tree nodes. These objects are stored in | |
202 | tables that are written separately from the function bodies that | |
203 | reference them. This way they can be instantiated even when the | |
204 | referencing functions aren't (e.g., during WPA) and it also allows | |
205 | functions to be copied from one file to another without having | |
206 | to unpickle the body first (the references are location | |
207 | independent). | |
208 | ||
209 | NOTE, do not regroup these values as the grouping is exposed | |
210 | in the range checks done in lto_input_tree. */ | |
211 | LTO_field_decl_ref, /* Do not change. */ | |
212 | LTO_function_decl_ref, | |
213 | LTO_label_decl_ref, | |
214 | LTO_namespace_decl_ref, | |
215 | LTO_result_decl_ref, | |
216 | LTO_ssa_name_ref, | |
217 | LTO_type_decl_ref, | |
218 | LTO_type_ref, | |
219 | LTO_const_decl_ref, | |
220 | LTO_imported_decl_ref, | |
6be14c0e | 221 | LTO_translation_unit_decl_ref, |
d7f09764 DN |
222 | LTO_global_decl_ref, /* Do not change. */ |
223 | ||
224 | /* This tag must always be last. */ | |
225 | LTO_NUM_TAGS | |
226 | }; | |
227 | ||
228 | ||
229 | /* Set of section types that are in an LTO file. This list will grow | |
230 | as the number of IPA passes grows since each IPA pass will need its | |
231 | own section type to store its summary information. | |
232 | ||
233 | When adding a new section type, you must also extend the | |
234 | LTO_SECTION_NAME array in lto-section-in.c. */ | |
235 | enum lto_section_type | |
236 | { | |
237 | LTO_section_decls = 0, | |
238 | LTO_section_function_body, | |
239 | LTO_section_static_initializer, | |
ab96cc5b | 240 | LTO_section_symtab, |
369451ec | 241 | LTO_section_refs, |
49f836ba | 242 | LTO_section_asm, |
fb3f88cc | 243 | LTO_section_jump_functions, |
d7f09764 DN |
244 | LTO_section_ipa_pure_const, |
245 | LTO_section_ipa_reference, | |
0208f7da | 246 | LTO_section_ipa_profile, |
ab96cc5b | 247 | LTO_section_symtab_nodes, |
d7f09764 | 248 | LTO_section_opts, |
922f15c2 | 249 | LTO_section_cgraph_opt_sum, |
10a5dd5d | 250 | LTO_section_inline_summary, |
2c9561b5 | 251 | LTO_section_ipcp_transform, |
d7f09764 DN |
252 | LTO_N_SECTION_TYPES /* Must be last. */ |
253 | }; | |
254 | ||
255 | /* Indices to the various function, type and symbol streams. */ | |
256 | typedef enum | |
257 | { | |
258 | LTO_DECL_STREAM_TYPE = 0, /* Must be first. */ | |
259 | LTO_DECL_STREAM_FIELD_DECL, | |
260 | LTO_DECL_STREAM_FN_DECL, | |
261 | LTO_DECL_STREAM_VAR_DECL, | |
262 | LTO_DECL_STREAM_TYPE_DECL, | |
263 | LTO_DECL_STREAM_NAMESPACE_DECL, | |
264 | LTO_DECL_STREAM_LABEL_DECL, | |
265 | LTO_N_DECL_STREAMS | |
266 | } lto_decl_stream_e_t; | |
267 | ||
268 | typedef enum ld_plugin_symbol_resolution ld_plugin_symbol_resolution_t; | |
d7f09764 DN |
269 | |
270 | ||
271 | /* Macro to define convenience functions for type and decl streams | |
b8698a0f | 272 | in lto_file_decl_data. */ |
d7f09764 DN |
273 | #define DEFINE_DECL_STREAM_FUNCS(UPPER_NAME, name) \ |
274 | static inline tree \ | |
275 | lto_file_decl_data_get_ ## name (struct lto_file_decl_data *data, \ | |
276 | unsigned int idx) \ | |
277 | { \ | |
278 | struct lto_in_decl_state *state = data->current_decl_state; \ | |
279 | gcc_assert (idx < state->streams[LTO_DECL_STREAM_## UPPER_NAME].size); \ | |
280 | return state->streams[LTO_DECL_STREAM_## UPPER_NAME].trees[idx]; \ | |
281 | } \ | |
282 | \ | |
283 | static inline unsigned int \ | |
284 | lto_file_decl_data_num_ ## name ## s (struct lto_file_decl_data *data) \ | |
285 | { \ | |
286 | struct lto_in_decl_state *state = data->current_decl_state; \ | |
287 | return state->streams[LTO_DECL_STREAM_## UPPER_NAME].size; \ | |
288 | } | |
289 | ||
290 | ||
291 | /* Return a char pointer to the start of a data stream for an lto pass | |
292 | or function. The first parameter is the file data that contains | |
293 | the information. The second parameter is the type of information | |
294 | to be obtained. The third parameter is the name of the function | |
b8698a0f | 295 | and is only used when finding a function body; otherwise it is |
d7f09764 | 296 | NULL. The fourth parameter is the length of the data returned. */ |
b8698a0f | 297 | typedef const char* (lto_get_section_data_f) (struct lto_file_decl_data *, |
d7f09764 | 298 | enum lto_section_type, |
b8698a0f | 299 | const char *, |
d7f09764 DN |
300 | size_t *); |
301 | ||
302 | /* Return the data found from the above call. The first three | |
303 | parameters are the same as above. The fourth parameter is the data | |
073a8998 | 304 | itself and the fifth is the length of the data. */ |
b8698a0f | 305 | typedef void (lto_free_section_data_f) (struct lto_file_decl_data *, |
d7f09764 DN |
306 | enum lto_section_type, |
307 | const char *, | |
308 | const char *, | |
309 | size_t); | |
310 | ||
d7f09764 | 311 | /* Structure used as buffer for reading an LTO file. */ |
b8698a0f | 312 | struct lto_input_block |
d7f09764 DN |
313 | { |
314 | const char *data; | |
315 | unsigned int p; | |
316 | unsigned int len; | |
317 | }; | |
318 | ||
319 | #define LTO_INIT_INPUT_BLOCK(BASE,D,P,L) \ | |
320 | do { \ | |
321 | BASE.data = D; \ | |
322 | BASE.p = P; \ | |
323 | BASE.len = L; \ | |
324 | } while (0) | |
325 | ||
326 | #define LTO_INIT_INPUT_BLOCK_PTR(BASE,D,P,L) \ | |
327 | do { \ | |
328 | BASE->data = D; \ | |
329 | BASE->p = P; \ | |
330 | BASE->len = L; \ | |
331 | } while (0) | |
332 | ||
333 | ||
334 | /* The is the first part of the record for a function or constructor | |
335 | in the .o file. */ | |
336 | struct lto_header | |
337 | { | |
338 | int16_t major_version; | |
339 | int16_t minor_version; | |
d7f09764 DN |
340 | }; |
341 | ||
342 | /* The header for a function body. */ | |
343 | struct lto_function_header | |
344 | { | |
345 | /* The header for all types of sections. */ | |
346 | struct lto_header lto_header; | |
347 | ||
348 | /* Number of labels with names. */ | |
349 | int32_t num_named_labels; | |
350 | ||
351 | /* Number of labels without names. */ | |
352 | int32_t num_unnamed_labels; | |
353 | ||
354 | /* Size compressed or 0 if not compressed. */ | |
355 | int32_t compressed_size; | |
356 | ||
357 | /* Size of names for named labels. */ | |
358 | int32_t named_label_size; | |
359 | ||
360 | /* Size of the cfg. */ | |
361 | int32_t cfg_size; | |
362 | ||
363 | /* Size of main gimple body of function. */ | |
364 | int32_t main_size; | |
365 | ||
366 | /* Size of the string table. */ | |
367 | int32_t string_size; | |
368 | }; | |
369 | ||
370 | ||
371 | /* Structure describing a symbol section. */ | |
372 | struct lto_decl_header | |
373 | { | |
374 | /* The header for all types of sections. */ | |
375 | struct lto_header lto_header; | |
376 | ||
377 | /* Size of region for decl state. */ | |
378 | int32_t decl_state_size; | |
379 | ||
380 | /* Number of nodes in globals stream. */ | |
381 | int32_t num_nodes; | |
382 | ||
383 | /* Size of region for expressions, decls, types, etc. */ | |
384 | int32_t main_size; | |
385 | ||
386 | /* Size of the string table. */ | |
387 | int32_t string_size; | |
388 | }; | |
389 | ||
390 | ||
49f836ba JB |
391 | /* Structure describing top level asm()s. */ |
392 | struct lto_asm_header | |
393 | { | |
394 | /* The header for all types of sections. */ | |
395 | struct lto_header lto_header; | |
396 | ||
397 | /* Size compressed or 0 if not compressed. */ | |
398 | int32_t compressed_size; | |
399 | ||
400 | /* Size of region for expressions, decls, types, etc. */ | |
401 | int32_t main_size; | |
402 | ||
403 | /* Size of the string table. */ | |
404 | int32_t string_size; | |
405 | }; | |
406 | ||
407 | ||
d7f09764 DN |
408 | /* Statistics gathered during LTO, WPA and LTRANS. */ |
409 | struct lto_stats_d | |
410 | { | |
411 | unsigned HOST_WIDE_INT num_input_cgraph_nodes; | |
7b99cca4 | 412 | unsigned HOST_WIDE_INT num_output_symtab_nodes; |
d7f09764 DN |
413 | unsigned HOST_WIDE_INT num_input_files; |
414 | unsigned HOST_WIDE_INT num_output_files; | |
415 | unsigned HOST_WIDE_INT num_cgraph_partitions; | |
416 | unsigned HOST_WIDE_INT section_size[LTO_N_SECTION_TYPES]; | |
417 | unsigned HOST_WIDE_INT num_function_bodies; | |
418 | unsigned HOST_WIDE_INT num_trees[NUM_TREE_CODES]; | |
419 | unsigned HOST_WIDE_INT num_output_il_bytes; | |
420 | unsigned HOST_WIDE_INT num_compressed_il_bytes; | |
421 | unsigned HOST_WIDE_INT num_input_il_bytes; | |
422 | unsigned HOST_WIDE_INT num_uncompressed_il_bytes; | |
423 | }; | |
424 | ||
7b99cca4 JH |
425 | /* Entry of LTO symtab encoder. */ |
426 | typedef struct | |
427 | { | |
428 | symtab_node node; | |
429 | /* Is the node in this partition (i.e. ltrans of this partition will | |
430 | be responsible for outputting it)? */ | |
431 | unsigned int in_partition:1; | |
432 | /* Do we encode body in this partition? */ | |
433 | unsigned int body:1; | |
434 | /* Do we encode initializer in this partition? | |
435 | For example the readonly variable initializers are encoded to aid | |
436 | constant folding even if they are not in the partition. */ | |
437 | unsigned int initializer:1; | |
438 | } lto_encoder_entry; | |
439 | ||
7b99cca4 | 440 | |
d7f09764 | 441 | /* Encoder data structure used to stream callgraph nodes. */ |
7380e6ef | 442 | struct lto_symtab_encoder_d |
d7f09764 | 443 | { |
9771b263 | 444 | vec<lto_encoder_entry> nodes; |
7b99cca4 | 445 | pointer_map_t *map; |
2f41ecf5 | 446 | }; |
7380e6ef JH |
447 | |
448 | typedef struct lto_symtab_encoder_d *lto_symtab_encoder_t; | |
2f41ecf5 | 449 | |
f27c1867 JH |
450 | /* Iterator structure for cgraph node sets. */ |
451 | typedef struct | |
703e95cf | 452 | { |
f27c1867 JH |
453 | lto_symtab_encoder_t encoder; |
454 | unsigned index; | |
455 | } lto_symtab_encoder_iterator; | |
456 | ||
457 | ||
458 | ||
703e95cf | 459 | |
d7f09764 | 460 | /* Mapping from indices to trees. */ |
49ba8180 | 461 | struct GTY(()) lto_tree_ref_table |
d7f09764 DN |
462 | { |
463 | /* Array of referenced trees . */ | |
49ba8180 | 464 | tree * GTY((length ("%h.size"))) trees; |
d7f09764 DN |
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. */ | |
9771b263 | 485 | vec<tree> trees; /* Maps indices to pointers. */ |
d7f09764 DN |
486 | }; |
487 | ||
488 | ||
489 | /* Structure to hold states of input scope. */ | |
49ba8180 | 490 | struct GTY(()) lto_in_decl_state |
d7f09764 DN |
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. */ | |
7380e6ef | 512 | lto_symtab_encoder_t symtab_node_encoder; |
2f41ecf5 | 513 | |
d7f09764 DN |
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 | ||
d7f09764 | 521 | |
aed7d7cf AK |
522 | /* Compact representation of a index <-> resolution pair. Unpacked to an |
523 | vector later. */ | |
524 | struct res_pair | |
525 | { | |
526 | ld_plugin_symbol_resolution_t res; | |
527 | unsigned index; | |
528 | }; | |
529 | typedef struct res_pair res_pair; | |
530 | ||
aed7d7cf | 531 | |
d7f09764 DN |
532 | /* One of these is allocated for each object file that being compiled |
533 | by lto. This structure contains the tables that are needed by the | |
534 | serialized functions and ipa passes to connect themselves to the | |
535 | global types and decls as they are reconstituted. */ | |
49ba8180 | 536 | struct GTY(()) lto_file_decl_data |
d7f09764 DN |
537 | { |
538 | /* Decl state currently used. */ | |
539 | struct lto_in_decl_state *current_decl_state; | |
540 | ||
541 | /* Decl state corresponding to regions outside of any functions | |
542 | in the compilation unit. */ | |
543 | struct lto_in_decl_state *global_decl_state; | |
544 | ||
545 | /* Table of cgraph nodes present in this file. */ | |
7380e6ef | 546 | lto_symtab_encoder_t GTY((skip)) symtab_node_encoder; |
2f41ecf5 | 547 | |
d7f09764 | 548 | /* Hash table maps lto-related section names to location in file. */ |
49ba8180 | 549 | htab_t GTY((param_is (struct lto_in_decl_state))) function_decl_states; |
d7f09764 DN |
550 | |
551 | /* The .o file that these offsets relate to. */ | |
49ba8180 | 552 | const char *GTY((skip)) file_name; |
d7f09764 | 553 | |
d7f09764 | 554 | /* Hash table maps lto-related section names to location in file. */ |
49ba8180 | 555 | htab_t GTY((skip)) section_hash_table; |
d7f09764 DN |
556 | |
557 | /* Hash new name of renamed global declaration to its original name. */ | |
49ba8180 | 558 | htab_t GTY((skip)) renaming_hash_table; |
73ce4d1e AK |
559 | |
560 | /* Linked list used temporarily in reader */ | |
561 | struct lto_file_decl_data *next; | |
562 | ||
563 | /* Sub ID for merged objects. */ | |
dde8b360 | 564 | unsigned HOST_WIDE_INT id; |
73ce4d1e AK |
565 | |
566 | /* Symbol resolutions for this file */ | |
9771b263 | 567 | vec<res_pair> GTY((skip)) respairs; |
aed7d7cf | 568 | unsigned max_index; |
db0bf14f JH |
569 | |
570 | struct gcov_ctr_summary GTY((skip)) profile_info; | |
d7f09764 DN |
571 | }; |
572 | ||
a9429e29 LB |
573 | typedef struct lto_file_decl_data *lto_file_decl_data_ptr; |
574 | ||
d7f09764 DN |
575 | struct lto_char_ptr_base |
576 | { | |
577 | char *ptr; | |
578 | }; | |
579 | ||
580 | /* An incore byte stream to buffer the various parts of the function. | |
581 | The entire structure should be zeroed when created. The record | |
582 | consists of a set of blocks. The first sizeof (ptr) bytes are used | |
583 | as a chain, and the rest store the bytes to be written. */ | |
584 | struct lto_output_stream | |
585 | { | |
586 | /* The pointer to the first block in the stream. */ | |
587 | struct lto_char_ptr_base * first_block; | |
588 | ||
589 | /* The pointer to the last and current block in the stream. */ | |
590 | struct lto_char_ptr_base * current_block; | |
591 | ||
592 | /* The pointer to where the next char should be written. */ | |
593 | char * current_pointer; | |
594 | ||
595 | /* The number of characters left in the current block. */ | |
596 | unsigned int left_in_block; | |
597 | ||
598 | /* The block size of the last block allocated. */ | |
599 | unsigned int block_size; | |
600 | ||
601 | /* The total number of characters written. */ | |
602 | unsigned int total_size; | |
603 | }; | |
604 | ||
605 | /* The is the first part of the record in an LTO file for many of the | |
606 | IPA passes. */ | |
607 | struct lto_simple_header | |
608 | { | |
609 | /* The header for all types of sections. */ | |
610 | struct lto_header lto_header; | |
611 | ||
612 | /* Size of main gimple body of function. */ | |
613 | int32_t main_size; | |
614 | ||
615 | /* Size of main stream when compressed. */ | |
616 | int32_t compressed_size; | |
617 | }; | |
618 | ||
619 | /* A simple output block. This can be used for simple IPA passes that | |
620 | do not need more than one stream. */ | |
621 | struct lto_simple_output_block | |
622 | { | |
623 | enum lto_section_type section_type; | |
624 | struct lto_out_decl_state *decl_state; | |
625 | ||
626 | /* The stream that the main tree codes are written to. */ | |
627 | struct lto_output_stream *main_stream; | |
628 | }; | |
629 | ||
630 | /* Data structure holding all the data and descriptors used when writing | |
631 | an LTO file. */ | |
632 | struct output_block | |
633 | { | |
634 | enum lto_section_type section_type; | |
635 | struct lto_out_decl_state *decl_state; | |
636 | ||
637 | /* The stream that the main tree codes are written to. */ | |
638 | struct lto_output_stream *main_stream; | |
639 | ||
640 | /* The stream that contains the string table. */ | |
641 | struct lto_output_stream *string_stream; | |
642 | ||
643 | /* The stream that contains the cfg. */ | |
644 | struct lto_output_stream *cfg_stream; | |
645 | ||
646 | /* The hash table that contains the set of strings we have seen so | |
647 | far and the indexes assigned to them. */ | |
648 | htab_t string_hash_table; | |
649 | ||
650 | /* The current cgraph_node that we are currently serializing. Null | |
651 | if we are serializing something else. */ | |
652 | struct cgraph_node *cgraph_node; | |
653 | ||
654 | /* These are the last file and line that were seen in the stream. | |
655 | If the current node differs from these, it needs to insert | |
656 | something into the stream and fix these up. */ | |
657 | const char *current_file; | |
658 | int current_line; | |
659 | int current_col; | |
660 | ||
661 | /* True if writing globals and types. */ | |
662 | bool global; | |
663 | ||
664 | /* Cache of nodes written in this section. */ | |
412288f1 | 665 | struct streamer_tree_cache_d *writer_cache; |
fac009a8 JH |
666 | |
667 | /* All data persistent across whole duration of output block | |
668 | can go here. */ | |
669 | struct obstack obstack; | |
d7f09764 DN |
670 | }; |
671 | ||
672 | ||
673 | /* Data and descriptors used when reading from an LTO file. */ | |
674 | struct data_in | |
675 | { | |
676 | /* The global decls and types. */ | |
677 | struct lto_file_decl_data *file_data; | |
678 | ||
679 | /* All of the labels. */ | |
680 | tree *labels; | |
681 | ||
682 | /* The string table. */ | |
683 | const char *strings; | |
684 | ||
685 | /* The length of the string table. */ | |
686 | unsigned int strings_len; | |
687 | ||
688 | /* Number of named labels. Used to find the index of unnamed labels | |
689 | since they share space with the named labels. */ | |
b8698a0f | 690 | unsigned int num_named_labels; |
d7f09764 DN |
691 | |
692 | /* Number of unnamed labels. */ | |
693 | unsigned int num_unnamed_labels; | |
694 | ||
d7f09764 | 695 | /* Maps each reference number to the resolution done by the linker. */ |
9771b263 | 696 | vec<ld_plugin_symbol_resolution_t> globals_resolution; |
d7f09764 DN |
697 | |
698 | /* Cache of pickled nodes. */ | |
412288f1 | 699 | struct streamer_tree_cache_d *reader_cache; |
d7f09764 DN |
700 | }; |
701 | ||
702 | ||
703 | /* In lto-section-in.c */ | |
704 | extern struct lto_input_block * lto_create_simple_input_block ( | |
b8698a0f | 705 | struct lto_file_decl_data *, |
d7f09764 DN |
706 | enum lto_section_type, const char **, size_t *); |
707 | extern void | |
b8698a0f | 708 | lto_destroy_simple_input_block (struct lto_file_decl_data *, |
d7f09764 DN |
709 | enum lto_section_type, |
710 | struct lto_input_block *, const char *, size_t); | |
b8698a0f | 711 | extern void lto_set_in_hooks (struct lto_file_decl_data **, |
d7f09764 DN |
712 | lto_get_section_data_f *, |
713 | lto_free_section_data_f *); | |
714 | extern struct lto_file_decl_data **lto_get_file_decl_data (void); | |
715 | extern const char *lto_get_section_data (struct lto_file_decl_data *, | |
716 | enum lto_section_type, | |
717 | const char *, size_t *); | |
718 | extern void lto_free_section_data (struct lto_file_decl_data *, | |
719 | enum lto_section_type, | |
720 | const char *, const char *, size_t); | |
d7f09764 DN |
721 | extern htab_t lto_create_renaming_table (void); |
722 | extern void lto_record_renamed_decl (struct lto_file_decl_data *, | |
723 | const char *, const char *); | |
724 | extern const char *lto_get_decl_name_mapping (struct lto_file_decl_data *, | |
725 | const char *); | |
726 | extern struct lto_in_decl_state *lto_new_in_decl_state (void); | |
727 | extern void lto_delete_in_decl_state (struct lto_in_decl_state *); | |
728 | extern hashval_t lto_hash_in_decl_state (const void *); | |
729 | extern int lto_eq_in_decl_state (const void *, const void *); | |
730 | extern struct lto_in_decl_state *lto_get_function_in_decl_state ( | |
731 | struct lto_file_decl_data *, tree); | |
bc0fe8cb | 732 | extern void lto_section_overrun (struct lto_input_block *) ATTRIBUTE_NORETURN; |
f242c0a5 JH |
733 | extern void lto_value_range_error (const char *, |
734 | HOST_WIDE_INT, HOST_WIDE_INT, | |
735 | HOST_WIDE_INT) ATTRIBUTE_NORETURN; | |
d7f09764 DN |
736 | |
737 | /* In lto-section-out.c */ | |
738 | extern hashval_t lto_hash_decl_slot_node (const void *); | |
739 | extern int lto_eq_decl_slot_node (const void *, const void *); | |
740 | extern hashval_t lto_hash_type_slot_node (const void *); | |
741 | extern int lto_eq_type_slot_node (const void *, const void *); | |
742 | extern void lto_begin_section (const char *, bool); | |
743 | extern void lto_end_section (void); | |
744 | extern void lto_write_stream (struct lto_output_stream *); | |
d7f09764 DN |
745 | extern void lto_output_data_stream (struct lto_output_stream *, const void *, |
746 | size_t); | |
d7f09764 DN |
747 | extern bool lto_output_decl_index (struct lto_output_stream *, |
748 | struct lto_tree_ref_encoder *, | |
749 | tree, unsigned int *); | |
750 | extern void lto_output_field_decl_index (struct lto_out_decl_state *, | |
751 | struct lto_output_stream *, tree); | |
752 | extern void lto_output_fn_decl_index (struct lto_out_decl_state *, | |
753 | struct lto_output_stream *, tree); | |
754 | extern void lto_output_namespace_decl_index (struct lto_out_decl_state *, | |
755 | struct lto_output_stream *, tree); | |
756 | extern void lto_output_var_decl_index (struct lto_out_decl_state *, | |
757 | struct lto_output_stream *, tree); | |
758 | extern void lto_output_type_decl_index (struct lto_out_decl_state *, | |
759 | struct lto_output_stream *, tree); | |
760 | extern void lto_output_type_ref_index (struct lto_out_decl_state *, | |
761 | struct lto_output_stream *, tree); | |
762 | extern struct lto_simple_output_block *lto_create_simple_output_block ( | |
763 | enum lto_section_type); | |
764 | extern void lto_destroy_simple_output_block (struct lto_simple_output_block *); | |
765 | extern struct lto_out_decl_state *lto_new_out_decl_state (void); | |
766 | extern void lto_delete_out_decl_state (struct lto_out_decl_state *); | |
767 | extern struct lto_out_decl_state *lto_get_out_decl_state (void); | |
768 | extern void lto_push_out_decl_state (struct lto_out_decl_state *); | |
769 | extern struct lto_out_decl_state *lto_pop_out_decl_state (void); | |
770 | extern void lto_record_function_out_decl_state (tree, | |
771 | struct lto_out_decl_state *); | |
bc0fe8cb | 772 | extern void lto_append_block (struct lto_output_stream *); |
d7f09764 DN |
773 | |
774 | ||
775 | /* In lto-streamer.c. */ | |
776 | extern const char *lto_tag_name (enum LTO_tags); | |
777 | extern bitmap lto_bitmap_alloc (void); | |
778 | extern void lto_bitmap_free (bitmap); | |
73ce4d1e | 779 | extern char *lto_get_section_name (int, const char *, struct lto_file_decl_data *); |
b8f4e58f | 780 | extern void print_lto_report (const char *); |
d7f09764 DN |
781 | extern void lto_streamer_init (void); |
782 | extern bool gate_lto_out (void); | |
783 | #ifdef LTO_STREAMER_DEBUG | |
784 | extern void lto_orig_address_map (tree, intptr_t); | |
785 | extern intptr_t lto_orig_address_get (tree); | |
786 | extern void lto_orig_address_remove (tree); | |
787 | #endif | |
788 | extern void lto_check_version (int, int); | |
47c79d56 | 789 | extern void lto_streamer_hooks_init (void); |
d7f09764 DN |
790 | |
791 | /* In lto-streamer-in.c */ | |
d7f09764 | 792 | extern void lto_input_cgraph (struct lto_file_decl_data *, const char *); |
47c79d56 | 793 | extern void lto_reader_init (void); |
d7f09764 DN |
794 | extern void lto_input_function_body (struct lto_file_decl_data *, tree, |
795 | const char *); | |
796 | extern void lto_input_constructors_and_inits (struct lto_file_decl_data *, | |
797 | const char *); | |
398f05da | 798 | extern void lto_input_toplevel_asms (struct lto_file_decl_data *, int); |
d7f09764 DN |
799 | extern struct data_in *lto_data_in_create (struct lto_file_decl_data *, |
800 | const char *, unsigned, | |
9771b263 | 801 | vec<ld_plugin_symbol_resolution_t> ); |
d7f09764 | 802 | extern void lto_data_in_delete (struct data_in *); |
a183b5c7 | 803 | extern void lto_input_data_block (struct lto_input_block *, void *, size_t); |
7cb7d208 | 804 | location_t lto_input_location (struct bitpack_d *, struct data_in *); |
f0efc7aa DN |
805 | tree lto_input_tree_ref (struct lto_input_block *, struct data_in *, |
806 | struct function *, enum LTO_tags); | |
807 | void lto_tag_check_set (enum LTO_tags, int, ...); | |
808 | void lto_init_eh (void); | |
b9393656 | 809 | tree lto_input_tree (struct lto_input_block *, struct data_in *); |
d7f09764 DN |
810 | |
811 | ||
812 | /* In lto-streamer-out.c */ | |
813 | extern void lto_register_decl_definition (tree, struct lto_file_decl_data *); | |
814 | extern struct output_block *create_output_block (enum lto_section_type); | |
815 | extern void destroy_output_block (struct output_block *); | |
7e54c608 | 816 | extern void lto_output_tree (struct output_block *, tree, bool, bool); |
49f836ba | 817 | extern void lto_output_toplevel_asms (void); |
fb3f88cc | 818 | extern void produce_asm (struct output_block *ob, tree fn); |
a183b5c7 DN |
819 | void lto_output_decl_state_streams (struct output_block *, |
820 | struct lto_out_decl_state *); | |
821 | void lto_output_decl_state_refs (struct output_block *, | |
822 | struct lto_output_stream *, | |
823 | struct lto_out_decl_state *); | |
7cb7d208 | 824 | void lto_output_location (struct output_block *, struct bitpack_d *, location_t); |
d7f09764 DN |
825 | |
826 | ||
827 | /* In lto-cgraph.c */ | |
e75f8f79 | 828 | lto_symtab_encoder_t lto_symtab_encoder_new (bool); |
7380e6ef JH |
829 | int lto_symtab_encoder_encode (lto_symtab_encoder_t, symtab_node); |
830 | void lto_symtab_encoder_delete (lto_symtab_encoder_t); | |
7b99cca4 | 831 | bool lto_symtab_encoder_delete_node (lto_symtab_encoder_t, symtab_node); |
7380e6ef | 832 | bool lto_symtab_encoder_encode_body_p (lto_symtab_encoder_t, |
91fbf0c7 | 833 | struct cgraph_node *); |
f27c1867 JH |
834 | bool lto_symtab_encoder_in_partition_p (lto_symtab_encoder_t, |
835 | symtab_node); | |
836 | void lto_set_symtab_encoder_in_partition (lto_symtab_encoder_t, | |
837 | symtab_node); | |
91fbf0c7 | 838 | |
7380e6ef JH |
839 | bool lto_symtab_encoder_encode_initializer_p (lto_symtab_encoder_t, |
840 | struct varpool_node *); | |
f27c1867 | 841 | void output_symtab (void); |
ab96cc5b | 842 | void input_symtab (void); |
369451ec | 843 | bool referenced_from_other_partition_p (struct ipa_ref_list *, |
f27c1867 | 844 | lto_symtab_encoder_t); |
9a809897 | 845 | bool reachable_from_other_partition_p (struct cgraph_node *, |
f27c1867 | 846 | lto_symtab_encoder_t); |
f3380641 | 847 | bool referenced_from_this_partition_p (struct ipa_ref_list *, |
f27c1867 | 848 | lto_symtab_encoder_t); |
f3380641 | 849 | bool reachable_from_this_partition_p (struct cgraph_node *, |
f27c1867 | 850 | lto_symtab_encoder_t); |
b4661bfe | 851 | lto_symtab_encoder_t compute_ltrans_boundary (lto_symtab_encoder_t encoder); |
d7f09764 DN |
852 | |
853 | ||
854 | /* In lto-symtab.c. */ | |
1a735925 | 855 | extern void lto_symtab_merge_decls (void); |
2c928155 | 856 | extern void lto_symtab_merge_cgraph_nodes (void); |
d7f09764 | 857 | extern tree lto_symtab_prevailing_decl (tree decl); |
9771b263 | 858 | extern GTY(()) vec<tree, va_gc> *lto_global_var_decls; |
d7f09764 DN |
859 | |
860 | ||
861 | /* In lto-opts.c. */ | |
d7f09764 | 862 | extern void lto_write_options (void); |
d7f09764 DN |
863 | |
864 | ||
d7f09764 DN |
865 | /* Statistics gathered during LTO, WPA and LTRANS. */ |
866 | extern struct lto_stats_d lto_stats; | |
867 | ||
868 | /* Section names corresponding to the values of enum lto_section_type. */ | |
869 | extern const char *lto_section_name[]; | |
870 | ||
871 | /* Holds all the out decl states of functions output so far in the | |
872 | current output file. */ | |
9771b263 | 873 | extern vec<lto_out_decl_state_ptr> lto_function_decl_states; |
d7f09764 DN |
874 | |
875 | /* Return true if LTO tag TAG corresponds to a tree code. */ | |
876 | static inline bool | |
877 | lto_tag_is_tree_code_p (enum LTO_tags tag) | |
878 | { | |
07233947 | 879 | return tag > LTO_null && (unsigned) tag <= MAX_TREE_CODES; |
d7f09764 DN |
880 | } |
881 | ||
882 | ||
883 | /* Return true if LTO tag TAG corresponds to a gimple code. */ | |
884 | static inline bool | |
885 | lto_tag_is_gimple_code_p (enum LTO_tags tag) | |
886 | { | |
887 | return (unsigned) tag >= NUM_TREE_CODES + 1 | |
888 | && (unsigned) tag < 1 + NUM_TREE_CODES + LAST_AND_UNUSED_GIMPLE_CODE; | |
889 | } | |
890 | ||
891 | ||
892 | /* Return the LTO tag corresponding to gimple code CODE. See enum | |
893 | LTO_tags for details on the conversion. */ | |
894 | static inline enum LTO_tags | |
895 | lto_gimple_code_to_tag (enum gimple_code code) | |
896 | { | |
897 | return (enum LTO_tags) ((unsigned) code + NUM_TREE_CODES + 1); | |
898 | } | |
899 | ||
900 | ||
901 | /* Return the GIMPLE code corresponding to TAG. See enum LTO_tags for | |
902 | details on the conversion. */ | |
903 | static inline enum gimple_code | |
904 | lto_tag_to_gimple_code (enum LTO_tags tag) | |
905 | { | |
906 | gcc_assert (lto_tag_is_gimple_code_p (tag)); | |
907 | return (enum gimple_code) ((unsigned) tag - NUM_TREE_CODES - 1); | |
908 | } | |
909 | ||
910 | ||
911 | /* Return the LTO tag corresponding to tree code CODE. See enum | |
912 | LTO_tags for details on the conversion. */ | |
913 | static inline enum LTO_tags | |
914 | lto_tree_code_to_tag (enum tree_code code) | |
915 | { | |
916 | return (enum LTO_tags) ((unsigned) code + 1); | |
917 | } | |
918 | ||
919 | ||
920 | /* Return the tree code corresponding to TAG. See enum LTO_tags for | |
921 | details on the conversion. */ | |
922 | static inline enum tree_code | |
923 | lto_tag_to_tree_code (enum LTO_tags tag) | |
924 | { | |
925 | gcc_assert (lto_tag_is_tree_code_p (tag)); | |
926 | return (enum tree_code) ((unsigned) tag - 1); | |
927 | } | |
928 | ||
f0efc7aa DN |
929 | /* Check that tag ACTUAL == EXPECTED. */ |
930 | static inline void | |
931 | lto_tag_check (enum LTO_tags actual, enum LTO_tags expected) | |
932 | { | |
933 | if (actual != expected) | |
934 | internal_error ("bytecode stream: expected tag %s instead of %s", | |
935 | lto_tag_name (expected), lto_tag_name (actual)); | |
936 | } | |
937 | ||
938 | /* Check that tag ACTUAL is in the range [TAG1, TAG2]. */ | |
939 | static inline void | |
940 | lto_tag_check_range (enum LTO_tags actual, enum LTO_tags tag1, | |
941 | enum LTO_tags tag2) | |
942 | { | |
943 | if (actual < tag1 || actual > tag2) | |
944 | internal_error ("bytecode stream: tag %s is not in the expected range " | |
945 | "[%s, %s]", | |
946 | lto_tag_name (actual), | |
947 | lto_tag_name (tag1), | |
948 | lto_tag_name (tag2)); | |
949 | } | |
950 | ||
d7f09764 DN |
951 | /* Initialize an lto_out_decl_buffer ENCODER. */ |
952 | static inline void | |
953 | lto_init_tree_ref_encoder (struct lto_tree_ref_encoder *encoder, | |
954 | htab_hash hash_fn, htab_eq eq_fn) | |
955 | { | |
956 | encoder->tree_hash_table = htab_create (37, hash_fn, eq_fn, free); | |
957 | encoder->next_index = 0; | |
9771b263 | 958 | encoder->trees.create (0); |
d7f09764 DN |
959 | } |
960 | ||
961 | ||
073a8998 | 962 | /* Destroy an lto_tree_ref_encoder ENCODER by freeing its contents. The |
d7f09764 DN |
963 | memory used by ENCODER is not freed by this function. */ |
964 | static inline void | |
965 | lto_destroy_tree_ref_encoder (struct lto_tree_ref_encoder *encoder) | |
966 | { | |
967 | /* Hash table may be delete already. */ | |
968 | if (encoder->tree_hash_table) | |
969 | htab_delete (encoder->tree_hash_table); | |
9771b263 | 970 | encoder->trees.release (); |
d7f09764 DN |
971 | } |
972 | ||
973 | /* Return the number of trees encoded in ENCODER. */ | |
974 | static inline unsigned int | |
975 | lto_tree_ref_encoder_size (struct lto_tree_ref_encoder *encoder) | |
976 | { | |
9771b263 | 977 | return encoder->trees.length (); |
d7f09764 DN |
978 | } |
979 | ||
980 | /* Return the IDX-th tree in ENCODER. */ | |
981 | static inline tree | |
982 | lto_tree_ref_encoder_get_tree (struct lto_tree_ref_encoder *encoder, | |
983 | unsigned int idx) | |
984 | { | |
9771b263 | 985 | return encoder->trees[idx]; |
d7f09764 DN |
986 | } |
987 | ||
988 | ||
989 | /* Return true if LABEL should be emitted in the global context. */ | |
990 | static inline bool | |
991 | emit_label_in_global_context_p (tree label) | |
992 | { | |
993 | return DECL_NONLOCAL (label) || FORCED_LABEL (label); | |
994 | } | |
995 | ||
f27c1867 JH |
996 | /* Return number of encoded nodes in ENCODER. */ |
997 | static inline int | |
998 | lto_symtab_encoder_size (lto_symtab_encoder_t encoder) | |
999 | { | |
9771b263 | 1000 | return encoder->nodes.length (); |
7b99cca4 JH |
1001 | } |
1002 | ||
1003 | /* Value used to represent failure of lto_symtab_encoder_lookup. */ | |
1004 | #define LCC_NOT_FOUND (-1) | |
1005 | ||
1006 | /* Look up NODE in encoder. Return NODE's reference if it has been encoded | |
1007 | or LCC_NOT_FOUND if it is not there. */ | |
1008 | ||
1009 | static inline int | |
1010 | lto_symtab_encoder_lookup (lto_symtab_encoder_t encoder, | |
1011 | symtab_node node) | |
1012 | { | |
1013 | void **slot = pointer_map_contains (encoder->map, node); | |
1014 | return (slot && *slot ? (size_t) *(slot) - 1 : LCC_NOT_FOUND); | |
f27c1867 JH |
1015 | } |
1016 | ||
1017 | /* Return true if iterator LSE points to nothing. */ | |
1018 | static inline bool | |
1019 | lsei_end_p (lto_symtab_encoder_iterator lsei) | |
1020 | { | |
1021 | return lsei.index >= (unsigned)lto_symtab_encoder_size (lsei.encoder); | |
1022 | } | |
1023 | ||
1024 | /* Advance iterator LSE. */ | |
1025 | static inline void | |
1026 | lsei_next (lto_symtab_encoder_iterator *lsei) | |
1027 | { | |
1028 | lsei->index++; | |
1029 | } | |
1030 | ||
1031 | /* Return the node pointed to by LSI. */ | |
1032 | static inline symtab_node | |
1033 | lsei_node (lto_symtab_encoder_iterator lsei) | |
1034 | { | |
9771b263 | 1035 | return lsei.encoder->nodes[lsei.index].node; |
f27c1867 JH |
1036 | } |
1037 | ||
1038 | /* Return the node pointed to by LSI. */ | |
1039 | static inline struct cgraph_node * | |
1040 | lsei_cgraph_node (lto_symtab_encoder_iterator lsei) | |
1041 | { | |
9771b263 | 1042 | return cgraph (lsei.encoder->nodes[lsei.index].node); |
f27c1867 JH |
1043 | } |
1044 | ||
1045 | /* Return the node pointed to by LSI. */ | |
1046 | static inline struct varpool_node * | |
1047 | lsei_varpool_node (lto_symtab_encoder_iterator lsei) | |
1048 | { | |
9771b263 | 1049 | return varpool (lsei.encoder->nodes[lsei.index].node); |
f27c1867 JH |
1050 | } |
1051 | ||
f27c1867 JH |
1052 | /* Return the cgraph node corresponding to REF using ENCODER. */ |
1053 | ||
1054 | static inline symtab_node | |
1055 | lto_symtab_encoder_deref (lto_symtab_encoder_t encoder, int ref) | |
1056 | { | |
1057 | if (ref == LCC_NOT_FOUND) | |
1058 | return NULL; | |
1059 | ||
9771b263 | 1060 | return encoder->nodes[ref].node; |
f27c1867 JH |
1061 | } |
1062 | ||
1063 | /* Return an iterator to the first node in LSI. */ | |
1064 | static inline lto_symtab_encoder_iterator | |
1065 | lsei_start (lto_symtab_encoder_t encoder) | |
1066 | { | |
1067 | lto_symtab_encoder_iterator lsei; | |
1068 | ||
1069 | lsei.encoder = encoder; | |
1070 | lsei.index = 0; | |
1071 | return lsei; | |
1072 | } | |
1073 | ||
1074 | /* Advance iterator LSE. */ | |
1075 | static inline void | |
1076 | lsei_next_in_partition (lto_symtab_encoder_iterator *lsei) | |
1077 | { | |
1078 | lsei_next (lsei); | |
1079 | while (!lsei_end_p (*lsei) | |
1080 | && !lto_symtab_encoder_in_partition_p (lsei->encoder, lsei_node (*lsei))) | |
1081 | lsei_next (lsei); | |
1082 | } | |
1083 | ||
1084 | /* Return an iterator to the first node in LSI. */ | |
1085 | static inline lto_symtab_encoder_iterator | |
1086 | lsei_start_in_partition (lto_symtab_encoder_t encoder) | |
1087 | { | |
1088 | lto_symtab_encoder_iterator lsei = lsei_start (encoder); | |
1089 | ||
1090 | if (lsei_end_p (lsei)) | |
1091 | return lsei; | |
1092 | if (!lto_symtab_encoder_in_partition_p (encoder, lsei_node (lsei))) | |
1093 | lsei_next_in_partition (&lsei); | |
1094 | ||
1095 | return lsei; | |
1096 | } | |
1097 | ||
1098 | /* Advance iterator LSE. */ | |
1099 | static inline void | |
1100 | lsei_next_function_in_partition (lto_symtab_encoder_iterator *lsei) | |
1101 | { | |
1102 | lsei_next (lsei); | |
1103 | while (!lsei_end_p (*lsei) | |
5d59b5e1 | 1104 | && (!is_a <cgraph_node> (lsei_node (*lsei)) |
f27c1867 JH |
1105 | || !lto_symtab_encoder_in_partition_p (lsei->encoder, lsei_node (*lsei)))) |
1106 | lsei_next (lsei); | |
1107 | } | |
1108 | ||
1109 | /* Return an iterator to the first node in LSI. */ | |
1110 | static inline lto_symtab_encoder_iterator | |
1111 | lsei_start_function_in_partition (lto_symtab_encoder_t encoder) | |
1112 | { | |
1113 | lto_symtab_encoder_iterator lsei = lsei_start (encoder); | |
1114 | ||
1115 | if (lsei_end_p (lsei)) | |
1116 | return lsei; | |
5d59b5e1 | 1117 | if (!is_a <cgraph_node> (lsei_node (lsei)) |
f27c1867 JH |
1118 | || !lto_symtab_encoder_in_partition_p (encoder, lsei_node (lsei))) |
1119 | lsei_next_function_in_partition (&lsei); | |
1120 | ||
1121 | return lsei; | |
1122 | } | |
1123 | ||
1124 | /* Advance iterator LSE. */ | |
1125 | static inline void | |
1126 | lsei_next_variable_in_partition (lto_symtab_encoder_iterator *lsei) | |
1127 | { | |
1128 | lsei_next (lsei); | |
1129 | while (!lsei_end_p (*lsei) | |
5d59b5e1 | 1130 | && (!is_a <varpool_node> (lsei_node (*lsei)) |
f27c1867 JH |
1131 | || !lto_symtab_encoder_in_partition_p (lsei->encoder, lsei_node (*lsei)))) |
1132 | lsei_next (lsei); | |
1133 | } | |
1134 | ||
1135 | /* Return an iterator to the first node in LSI. */ | |
1136 | static inline lto_symtab_encoder_iterator | |
1137 | lsei_start_variable_in_partition (lto_symtab_encoder_t encoder) | |
1138 | { | |
1139 | lto_symtab_encoder_iterator lsei = lsei_start (encoder); | |
1140 | ||
1141 | if (lsei_end_p (lsei)) | |
1142 | return lsei; | |
5d59b5e1 | 1143 | if (!is_a <varpool_node> (lsei_node (lsei)) |
f27c1867 JH |
1144 | || !lto_symtab_encoder_in_partition_p (encoder, lsei_node (lsei))) |
1145 | lsei_next_variable_in_partition (&lsei); | |
1146 | ||
1147 | return lsei; | |
1148 | } | |
1149 | ||
d7f09764 DN |
1150 | DEFINE_DECL_STREAM_FUNCS (TYPE, type) |
1151 | DEFINE_DECL_STREAM_FUNCS (FIELD_DECL, field_decl) | |
1152 | DEFINE_DECL_STREAM_FUNCS (FN_DECL, fn_decl) | |
1153 | DEFINE_DECL_STREAM_FUNCS (VAR_DECL, var_decl) | |
1154 | DEFINE_DECL_STREAM_FUNCS (TYPE_DECL, type_decl) | |
1155 | DEFINE_DECL_STREAM_FUNCS (NAMESPACE_DECL, namespace_decl) | |
1156 | DEFINE_DECL_STREAM_FUNCS (LABEL_DECL, label_decl) | |
1157 | ||
1158 | #endif /* GCC_LTO_STREAMER_H */ |