1 | /* Routines for emitting trees to a file stream. |
2 | |
3 | Copyright (C) 2011-2023 Free Software Foundation, Inc. |
4 | Contributed by Diego Novillo <dnovillo@google.com> |
5 | |
6 | This file is part of GCC. |
7 | |
8 | GCC is free software; you can redistribute it and/or modify it under |
9 | the terms of the GNU General Public License as published by the Free |
10 | Software Foundation; either version 3, or (at your option) any later |
11 | version. |
12 | |
13 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
14 | WARRANTY; without even the implied warranty of MERCHANTABILITY or |
15 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
16 | for more details. |
17 | |
18 | You should have received a copy of the GNU General Public License |
19 | along with GCC; see the file COPYING3. If not see |
20 | <http://www.gnu.org/licenses/>. */ |
21 | |
22 | #include "config.h" |
23 | #include "system.h" |
24 | #include "coretypes.h" |
25 | #include "backend.h" |
26 | #include "target.h" |
27 | #include "tree.h" |
28 | #include "gimple.h" |
29 | #include "tree-streamer.h" |
30 | #include "cgraph.h" |
31 | #include "alias.h" |
32 | #include "stor-layout.h" |
33 | #include "gomp-constants.h" |
34 | #include "print-tree.h" |
35 | |
36 | |
37 | /* Output the STRING constant to the string |
38 | table in OB. Then put the index onto the INDEX_STREAM. */ |
39 | |
40 | void |
41 | streamer_write_string_cst (struct output_block *ob, |
42 | struct lto_output_stream *index_stream, |
43 | tree string) |
44 | { |
45 | streamer_write_string_with_length (ob, index_stream, |
46 | string ? TREE_STRING_POINTER (string) |
47 | : NULL, |
48 | string ? TREE_STRING_LENGTH (string) : 0, |
49 | true); |
50 | } |
51 | |
52 | |
53 | /* Output the identifier ID to the string |
54 | table in OB. Then put the index onto the INDEX_STREAM. */ |
55 | |
56 | static void |
57 | write_identifier (struct output_block *ob, |
58 | struct lto_output_stream *index_stream, |
59 | tree id) |
60 | { |
61 | streamer_write_string_with_length (ob, index_stream, |
62 | IDENTIFIER_POINTER (id), |
63 | IDENTIFIER_LENGTH (id), |
64 | true); |
65 | } |
66 | |
67 | |
68 | /* Pack all the non-pointer fields of the TS_BASE structure of |
69 | expression EXPR into bitpack BP. */ |
70 | |
71 | static inline void |
72 | pack_ts_base_value_fields (struct bitpack_d *bp, tree expr) |
73 | { |
74 | if (streamer_debugging) |
75 | bp_pack_value (bp, TREE_CODE (expr), nbits: 16); |
76 | if (!TYPE_P (expr)) |
77 | { |
78 | bp_pack_value (bp, TREE_SIDE_EFFECTS (expr), nbits: 1); |
79 | bp_pack_value (bp, TREE_CONSTANT (expr), nbits: 1); |
80 | bp_pack_value (bp, TREE_READONLY (expr), nbits: 1); |
81 | |
82 | /* TREE_PUBLIC is used on types to indicate that the type |
83 | has a TYPE_CACHED_VALUES vector. This is not streamed out, |
84 | so we skip it here. */ |
85 | bp_pack_value (bp, TREE_PUBLIC (expr), nbits: 1); |
86 | } |
87 | else |
88 | bp_pack_value (bp, val: 0, nbits: 4); |
89 | bp_pack_value (bp, TREE_ADDRESSABLE (expr), nbits: 1); |
90 | bp_pack_value (bp, TREE_THIS_VOLATILE (expr), nbits: 1); |
91 | if (DECL_P (expr)) |
92 | { |
93 | bp_pack_value (bp, DECL_UNSIGNED (expr), nbits: 1); |
94 | bp_pack_value (bp, DECL_NAMELESS (expr), nbits: 1); |
95 | } |
96 | else if (TYPE_P (expr)) |
97 | bp_pack_value (bp, TYPE_UNSIGNED (expr), nbits: 1); |
98 | else |
99 | bp_pack_value (bp, val: 0, nbits: 1); |
100 | /* We write debug info two times, do not confuse the second one. |
101 | The only relevant TREE_ASM_WRITTEN use is on SSA names. */ |
102 | bp_pack_value (bp, val: (TREE_CODE (expr) != SSA_NAME |
103 | ? 0 : TREE_ASM_WRITTEN (expr)), nbits: 1); |
104 | if (TYPE_P (expr)) |
105 | bp_pack_value (bp, TYPE_ARTIFICIAL (expr), nbits: 1); |
106 | else |
107 | bp_pack_value (bp, TREE_NO_WARNING (expr), nbits: 1); |
108 | bp_pack_value (bp, TREE_NOTHROW (expr), nbits: 1); |
109 | bp_pack_value (bp, TREE_STATIC (expr), nbits: 1); |
110 | if (TREE_CODE (expr) != TREE_BINFO) |
111 | bp_pack_value (bp, TREE_PRIVATE (expr), nbits: 1); |
112 | else |
113 | bp_pack_value (bp, val: 0, nbits: 1); |
114 | bp_pack_value (bp, TREE_PROTECTED (expr), nbits: 1); |
115 | bp_pack_value (bp, TREE_DEPRECATED (expr), nbits: 1); |
116 | if (TYPE_P (expr)) |
117 | { |
118 | if (AGGREGATE_TYPE_P (expr)) |
119 | bp_pack_value (bp, TYPE_REVERSE_STORAGE_ORDER (expr), nbits: 1); |
120 | else |
121 | bp_pack_value (bp, TYPE_SATURATING (expr), nbits: 1); |
122 | if (lto_stream_offload_p) |
123 | /* Host and offload targets have no common meaning of address |
124 | spaces. */ |
125 | ; |
126 | else |
127 | bp_pack_value (bp, TYPE_ADDR_SPACE (expr), nbits: 8); |
128 | } |
129 | else if (TREE_CODE (expr) == BIT_FIELD_REF || TREE_CODE (expr) == MEM_REF) |
130 | { |
131 | bp_pack_value (bp, REF_REVERSE_STORAGE_ORDER (expr), nbits: 1); |
132 | bp_pack_value (bp, val: 0, nbits: 8); |
133 | } |
134 | else if (TREE_CODE (expr) == SSA_NAME) |
135 | { |
136 | bp_pack_value (bp, SSA_NAME_IS_DEFAULT_DEF (expr), nbits: 1); |
137 | bp_pack_value (bp, val: 0, nbits: 8); |
138 | } |
139 | else if (TREE_CODE (expr) == CALL_EXPR) |
140 | { |
141 | bp_pack_value (bp, CALL_EXPR_BY_DESCRIPTOR (expr), nbits: 1); |
142 | bp_pack_value (bp, val: 0, nbits: 8); |
143 | } |
144 | else |
145 | bp_pack_value (bp, val: 0, nbits: 9); |
146 | } |
147 | |
148 | |
149 | /* Pack all the non-pointer fields of the TS_INTEGER_CST structure of |
150 | expression EXPR into bitpack BP. */ |
151 | |
152 | static void |
153 | pack_ts_int_cst_value_fields (struct bitpack_d *bp, tree expr) |
154 | { |
155 | int i; |
156 | /* Note that the number of elements has already been written out in |
157 | streamer_write_tree_header. */ |
158 | for (i = 0; i < TREE_INT_CST_EXT_NUNITS (expr); i++) |
159 | bp_pack_var_len_int (bp, TREE_INT_CST_ELT (expr, i)); |
160 | } |
161 | |
162 | |
163 | /* Pack all the non-pointer fields of the TS_REAL_CST structure of |
164 | expression EXPR into bitpack BP. */ |
165 | |
166 | static void |
167 | pack_ts_real_cst_value_fields (struct bitpack_d *bp, tree expr) |
168 | { |
169 | REAL_VALUE_TYPE r = TREE_REAL_CST (expr); |
170 | bp_pack_real_value (bp, &r); |
171 | } |
172 | |
173 | |
174 | /* Pack all the non-pointer fields of the TS_FIXED_CST structure of |
175 | expression EXPR into bitpack BP. */ |
176 | |
177 | static void |
178 | pack_ts_fixed_cst_value_fields (struct bitpack_d *bp, tree expr) |
179 | { |
180 | struct fixed_value fv = TREE_FIXED_CST (expr); |
181 | bp_pack_machine_mode (bp, mode: fv.mode); |
182 | bp_pack_var_len_int (bp, fv.data.low); |
183 | bp_pack_var_len_int (bp, fv.data.high); |
184 | } |
185 | |
186 | /* Pack all the non-pointer fields of the TS_DECL_COMMON structure |
187 | of expression EXPR into bitpack BP. */ |
188 | |
189 | static void |
190 | pack_ts_decl_common_value_fields (struct bitpack_d *bp, tree expr) |
191 | { |
192 | bp_pack_machine_mode (bp, DECL_MODE (expr)); |
193 | bp_pack_value (bp, DECL_NONLOCAL (expr), nbits: 1); |
194 | bp_pack_value (bp, DECL_VIRTUAL_P (expr), nbits: 1); |
195 | bp_pack_value (bp, DECL_IGNORED_P (expr), nbits: 1); |
196 | bp_pack_value (bp, DECL_ABSTRACT_P (expr), nbits: 1); |
197 | bp_pack_value (bp, DECL_ARTIFICIAL (expr), nbits: 1); |
198 | bp_pack_value (bp, DECL_USER_ALIGN (expr), nbits: 1); |
199 | bp_pack_value (bp, DECL_PRESERVE_P (expr), nbits: 1); |
200 | bp_pack_value (bp, DECL_EXTERNAL (expr), nbits: 1); |
201 | bp_pack_value (bp, DECL_NOT_GIMPLE_REG_P (expr), nbits: 1); |
202 | bp_pack_var_len_unsigned (bp, DECL_ALIGN (expr)); |
203 | |
204 | if (TREE_CODE (expr) == LABEL_DECL) |
205 | { |
206 | /* Note that we do not write LABEL_DECL_UID. The reader will |
207 | always assume an initial value of -1 so that the |
208 | label_to_block_map is recreated by gimple_set_bb. */ |
209 | bp_pack_var_len_unsigned (bp, EH_LANDING_PAD_NR (expr)); |
210 | } |
211 | |
212 | else if (TREE_CODE (expr) == FIELD_DECL) |
213 | { |
214 | bp_pack_value (bp, DECL_PACKED (expr), nbits: 1); |
215 | bp_pack_value (bp, DECL_NONADDRESSABLE_P (expr), nbits: 1); |
216 | bp_pack_value (bp, DECL_PADDING_P (expr), nbits: 1); |
217 | if (DECL_BIT_FIELD (expr)) |
218 | bp_pack_value (bp, DECL_FIELD_CXX_ZERO_WIDTH_BIT_FIELD (expr), nbits: 1); |
219 | else |
220 | bp_pack_value (bp, DECL_FIELD_ABI_IGNORED (expr), nbits: 1); |
221 | bp_pack_value (bp, val: expr->decl_common.off_align, nbits: 8); |
222 | bp_pack_value (bp, DECL_NOT_FLEXARRAY (expr), nbits: 1); |
223 | } |
224 | |
225 | else if (VAR_P (expr)) |
226 | { |
227 | bp_pack_value (bp, DECL_HAS_DEBUG_EXPR_P (expr), nbits: 1); |
228 | bp_pack_value (bp, DECL_NONLOCAL_FRAME (expr), nbits: 1); |
229 | } |
230 | |
231 | else if (TREE_CODE (expr) == PARM_DECL) |
232 | bp_pack_value (bp, DECL_HIDDEN_STRING_LENGTH (expr), nbits: 1); |
233 | |
234 | if (TREE_CODE (expr) == RESULT_DECL |
235 | || TREE_CODE (expr) == PARM_DECL |
236 | || VAR_P (expr)) |
237 | { |
238 | bp_pack_value (bp, DECL_BY_REFERENCE (expr), nbits: 1); |
239 | if (VAR_P (expr) || TREE_CODE (expr) == PARM_DECL) |
240 | bp_pack_value (bp, DECL_HAS_VALUE_EXPR_P (expr), nbits: 1); |
241 | } |
242 | } |
243 | |
244 | |
245 | /* Pack all the non-pointer fields of the TS_DECL_WRTL structure |
246 | of expression EXPR into bitpack BP. */ |
247 | |
248 | static void |
249 | pack_ts_decl_wrtl_value_fields (struct bitpack_d *bp, tree expr) |
250 | { |
251 | bp_pack_value (bp, DECL_REGISTER (expr), nbits: 1); |
252 | } |
253 | |
254 | |
255 | /* Pack all the non-pointer fields of the TS_DECL_WITH_VIS structure |
256 | of expression EXPR into bitpack BP. */ |
257 | |
258 | static void |
259 | pack_ts_decl_with_vis_value_fields (struct bitpack_d *bp, tree expr) |
260 | { |
261 | bp_pack_value (bp, DECL_COMMON (expr), nbits: 1); |
262 | bp_pack_value (bp, DECL_DLLIMPORT_P (expr), nbits: 1); |
263 | bp_pack_value (bp, DECL_WEAK (expr), nbits: 1); |
264 | bp_pack_value (bp, DECL_SEEN_IN_BIND_EXPR_P (expr), nbits: 1); |
265 | bp_pack_value (bp, DECL_COMDAT (expr), nbits: 1); |
266 | bp_pack_value (bp, DECL_VISIBILITY (expr), nbits: 2); |
267 | bp_pack_value (bp, DECL_VISIBILITY_SPECIFIED (expr), nbits: 1); |
268 | |
269 | if (VAR_P (expr)) |
270 | { |
271 | bp_pack_value (bp, DECL_HARD_REGISTER (expr), nbits: 1); |
272 | /* DECL_IN_TEXT_SECTION is set during final asm output only. */ |
273 | bp_pack_value (bp, DECL_IN_CONSTANT_POOL (expr), nbits: 1); |
274 | } |
275 | |
276 | if (TREE_CODE (expr) == FUNCTION_DECL) |
277 | { |
278 | bp_pack_value (bp, DECL_FINAL_P (expr), nbits: 1); |
279 | bp_pack_value (bp, DECL_CXX_CONSTRUCTOR_P (expr), nbits: 1); |
280 | bp_pack_value (bp, DECL_CXX_DESTRUCTOR_P (expr), nbits: 1); |
281 | } |
282 | } |
283 | |
284 | |
285 | /* Pack all the non-pointer fields of the TS_FUNCTION_DECL structure |
286 | of expression EXPR into bitpack BP. */ |
287 | |
288 | static void |
289 | pack_ts_function_decl_value_fields (struct bitpack_d *bp, tree expr) |
290 | { |
291 | bp_pack_enum (bp, built_in_class, BUILT_IN_LAST, |
292 | DECL_BUILT_IN_CLASS (expr)); |
293 | bp_pack_value (bp, DECL_STATIC_CONSTRUCTOR (expr), nbits: 1); |
294 | bp_pack_value (bp, DECL_STATIC_DESTRUCTOR (expr), nbits: 1); |
295 | bp_pack_value (bp, DECL_UNINLINABLE (expr), nbits: 1); |
296 | bp_pack_value (bp, DECL_POSSIBLY_INLINED (expr), nbits: 1); |
297 | bp_pack_value (bp, DECL_IS_NOVOPS (expr), nbits: 1); |
298 | bp_pack_value (bp, DECL_IS_RETURNS_TWICE (expr), nbits: 1); |
299 | bp_pack_value (bp, DECL_IS_MALLOC (expr), nbits: 1); |
300 | bp_pack_value (bp, FUNCTION_DECL_DECL_TYPE (expr), nbits: 2); |
301 | bp_pack_value (bp, DECL_IS_OPERATOR_DELETE_P (expr), nbits: 1); |
302 | bp_pack_value (bp, DECL_DECLARED_INLINE_P (expr), nbits: 1); |
303 | bp_pack_value (bp, DECL_STATIC_CHAIN (expr), nbits: 1); |
304 | bp_pack_value (bp, DECL_NO_INLINE_WARNING_P (expr), nbits: 1); |
305 | bp_pack_value (bp, DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT (expr), nbits: 1); |
306 | bp_pack_value (bp, DECL_NO_LIMIT_STACK (expr), nbits: 1); |
307 | bp_pack_value (bp, DECL_DISREGARD_INLINE_LIMITS (expr), nbits: 1); |
308 | bp_pack_value (bp, DECL_PURE_P (expr), nbits: 1); |
309 | bp_pack_value (bp, DECL_LOOPING_CONST_OR_PURE_P (expr), nbits: 1); |
310 | bp_pack_value (bp, DECL_IS_REPLACEABLE_OPERATOR (expr), nbits: 1); |
311 | if (DECL_BUILT_IN_CLASS (expr) != NOT_BUILT_IN) |
312 | bp_pack_value (bp, DECL_UNCHECKED_FUNCTION_CODE (expr), nbits: 32); |
313 | } |
314 | |
315 | |
316 | /* Pack all the non-pointer fields of the TS_TYPE_COMMON structure |
317 | of expression EXPR into bitpack BP. */ |
318 | |
319 | static void |
320 | pack_ts_type_common_value_fields (struct bitpack_d *bp, tree expr) |
321 | { |
322 | /* for VECTOR_TYPE, TYPE_MODE reevaluates the mode using target_flags |
323 | not necessary valid in a global context. |
324 | Use the raw value previously set by layout_type. */ |
325 | bp_pack_machine_mode (bp, TYPE_MODE_RAW (expr)); |
326 | /* TYPE_NO_FORCE_BLK is private to stor-layout and need |
327 | no streaming. */ |
328 | bp_pack_value (bp, TYPE_PACKED (expr), nbits: 1); |
329 | bp_pack_value (bp, TYPE_RESTRICT (expr), nbits: 1); |
330 | bp_pack_value (bp, TYPE_USER_ALIGN (expr), nbits: 1); |
331 | bp_pack_value (bp, TYPE_READONLY (expr), nbits: 1); |
332 | unsigned vla_p; |
333 | if (in_lto_p) |
334 | vla_p = TYPE_LANG_FLAG_0 (TYPE_MAIN_VARIANT (expr)); |
335 | else |
336 | vla_p = variably_modified_type_p (expr, NULL_TREE); |
337 | bp_pack_value (bp, val: vla_p, nbits: 1); |
338 | /* We used to stream TYPE_ALIAS_SET == 0 information to let frontends mark |
339 | types that are opaque for TBAA. This however did not work as intended, |
340 | because TYPE_ALIAS_SET == 0 was regularly lost in type merging. */ |
341 | if (RECORD_OR_UNION_TYPE_P (expr)) |
342 | { |
343 | bp_pack_value (bp, TYPE_TRANSPARENT_AGGR (expr), nbits: 1); |
344 | bp_pack_value (bp, TYPE_FINAL_P (expr), nbits: 1); |
345 | /* alias_ptr_types_compatible_p relies on fact that during LTO |
346 | types do not get refined from WPA time to ltrans. */ |
347 | bp_pack_value (bp, flag_wpa && TYPE_CANONICAL (expr) |
348 | ? TYPE_CXX_ODR_P (TYPE_CANONICAL (expr)) |
349 | : TYPE_CXX_ODR_P (expr), nbits: 1); |
350 | } |
351 | else if (TREE_CODE (expr) == ARRAY_TYPE) |
352 | bp_pack_value (bp, TYPE_NONALIASED_COMPONENT (expr), nbits: 1); |
353 | if (TREE_CODE (expr) == ARRAY_TYPE || TREE_CODE (expr) == INTEGER_TYPE) |
354 | bp_pack_value (bp, TYPE_STRING_FLAG (expr), nbits: 1); |
355 | if (AGGREGATE_TYPE_P (expr)) |
356 | bp_pack_value (bp, TYPE_TYPELESS_STORAGE (expr), nbits: 1); |
357 | bp_pack_value (bp, TYPE_EMPTY_P (expr), nbits: 1); |
358 | if (FUNC_OR_METHOD_TYPE_P (expr)) |
359 | bp_pack_value (bp, TYPE_NO_NAMED_ARGS_STDARG_P (expr), nbits: 1); |
360 | if (RECORD_OR_UNION_TYPE_P (expr)) |
361 | bp_pack_value (bp, TYPE_INCLUDES_FLEXARRAY (expr), nbits: 1); |
362 | bp_pack_var_len_unsigned (bp, TYPE_PRECISION_RAW (expr)); |
363 | bp_pack_var_len_unsigned (bp, TYPE_ALIGN (expr)); |
364 | } |
365 | |
366 | |
367 | /* Pack all the non-pointer fields of the TS_BLOCK structure |
368 | of expression EXPR into bitpack BP. */ |
369 | |
370 | static void |
371 | pack_ts_block_value_fields (struct output_block *ob, |
372 | struct bitpack_d *bp, tree expr) |
373 | { |
374 | /* BLOCK_NUMBER is recomputed. */ |
375 | /* Stream BLOCK_SOURCE_LOCATION for the limited cases we can handle - those |
376 | that represent inlined function scopes. |
377 | For the rest them on the floor instead of ICEing in dwarf2out.cc. */ |
378 | if (inlined_function_outer_scope_p (block: expr)) |
379 | stream_output_location (ob, bp, BLOCK_SOURCE_LOCATION (expr)); |
380 | else |
381 | stream_output_location (ob, bp, UNKNOWN_LOCATION); |
382 | } |
383 | |
384 | /* Pack all the non-pointer fields of the TS_TRANSLATION_UNIT_DECL structure |
385 | of expression EXPR into bitpack BP. */ |
386 | |
387 | static void |
388 | pack_ts_translation_unit_decl_value_fields (struct output_block *ob, |
389 | struct bitpack_d *bp, tree expr) |
390 | { |
391 | bp_pack_string (ob, bp, TRANSLATION_UNIT_LANGUAGE (expr), true); |
392 | } |
393 | |
394 | |
395 | /* Pack all the non-pointer fields of the TS_OMP_CLAUSE structure |
396 | of expression EXPR into bitpack BP. */ |
397 | |
398 | static void |
399 | pack_ts_omp_clause_value_fields (struct output_block *ob, |
400 | struct bitpack_d *bp, tree expr) |
401 | { |
402 | stream_output_location (ob, bp, OMP_CLAUSE_LOCATION (expr)); |
403 | switch (OMP_CLAUSE_CODE (expr)) |
404 | { |
405 | case OMP_CLAUSE_DEFAULT: |
406 | bp_pack_enum (bp, omp_clause_default_kind, OMP_CLAUSE_DEFAULT_LAST, |
407 | OMP_CLAUSE_DEFAULT_KIND (expr)); |
408 | break; |
409 | case OMP_CLAUSE_SCHEDULE: |
410 | bp_pack_enum (bp, omp_clause_schedule_kind, OMP_CLAUSE_SCHEDULE_LAST, |
411 | OMP_CLAUSE_SCHEDULE_KIND (expr)); |
412 | break; |
413 | case OMP_CLAUSE_DEPEND: |
414 | bp_pack_enum (bp, omp_clause_depend_kind, OMP_CLAUSE_DEPEND_LAST, |
415 | OMP_CLAUSE_DEPEND_KIND (expr)); |
416 | break; |
417 | case OMP_CLAUSE_DOACROSS: |
418 | bp_pack_enum (bp, omp_clause_doacross_kind, OMP_CLAUSE_DOACROSS_LAST, |
419 | OMP_CLAUSE_DOACROSS_KIND (expr)); |
420 | break; |
421 | case OMP_CLAUSE_MAP: |
422 | bp_pack_enum (bp, gomp_map_kind, GOMP_MAP_LAST, |
423 | OMP_CLAUSE_MAP_KIND (expr)); |
424 | break; |
425 | case OMP_CLAUSE_PROC_BIND: |
426 | bp_pack_enum (bp, omp_clause_proc_bind_kind, OMP_CLAUSE_PROC_BIND_LAST, |
427 | OMP_CLAUSE_PROC_BIND_KIND (expr)); |
428 | break; |
429 | case OMP_CLAUSE_REDUCTION: |
430 | case OMP_CLAUSE_TASK_REDUCTION: |
431 | case OMP_CLAUSE_IN_REDUCTION: |
432 | bp_pack_enum (bp, tree_code, MAX_TREE_CODES, |
433 | OMP_CLAUSE_REDUCTION_CODE (expr)); |
434 | break; |
435 | default: |
436 | break; |
437 | } |
438 | } |
439 | |
440 | |
441 | /* Pack all the bitfields in EXPR into a bit pack. */ |
442 | |
443 | void |
444 | streamer_write_tree_bitfields (struct output_block *ob, tree expr) |
445 | { |
446 | bitpack_d bp = bitpack_create (s: ob->main_stream); |
447 | enum tree_code code; |
448 | |
449 | code = TREE_CODE (expr); |
450 | |
451 | /* Note that all these functions are highly sensitive to changes in |
452 | the types and sizes of each of the fields being packed. */ |
453 | pack_ts_base_value_fields (bp: &bp, expr); |
454 | |
455 | if (CODE_CONTAINS_STRUCT (code, TS_INT_CST)) |
456 | pack_ts_int_cst_value_fields (bp: &bp, expr); |
457 | |
458 | if (CODE_CONTAINS_STRUCT (code, TS_REAL_CST)) |
459 | pack_ts_real_cst_value_fields (bp: &bp, expr); |
460 | |
461 | if (CODE_CONTAINS_STRUCT (code, TS_FIXED_CST)) |
462 | pack_ts_fixed_cst_value_fields (bp: &bp, expr); |
463 | |
464 | if (CODE_CONTAINS_STRUCT (code, TS_DECL_MINIMAL)) |
465 | stream_output_location (ob, &bp, DECL_SOURCE_LOCATION (expr)); |
466 | |
467 | if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON)) |
468 | pack_ts_decl_common_value_fields (bp: &bp, expr); |
469 | |
470 | if (CODE_CONTAINS_STRUCT (code, TS_DECL_WRTL)) |
471 | pack_ts_decl_wrtl_value_fields (bp: &bp, expr); |
472 | |
473 | if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS)) |
474 | pack_ts_decl_with_vis_value_fields (bp: &bp, expr); |
475 | |
476 | if (CODE_CONTAINS_STRUCT (code, TS_FUNCTION_DECL)) |
477 | pack_ts_function_decl_value_fields (bp: &bp, expr); |
478 | |
479 | if (CODE_CONTAINS_STRUCT (code, TS_TYPE_COMMON)) |
480 | pack_ts_type_common_value_fields (bp: &bp, expr); |
481 | |
482 | if (CODE_CONTAINS_STRUCT (code, TS_EXP)) |
483 | { |
484 | stream_output_location (ob, &bp, EXPR_LOCATION (expr)); |
485 | if (code == MEM_REF |
486 | || code == TARGET_MEM_REF) |
487 | { |
488 | bp_pack_value (bp: &bp, MR_DEPENDENCE_CLIQUE (expr), nbits: sizeof (short) * 8); |
489 | if (MR_DEPENDENCE_CLIQUE (expr) != 0) |
490 | bp_pack_value (bp: &bp, MR_DEPENDENCE_BASE (expr), nbits: sizeof (short) * 8); |
491 | } |
492 | else if (code == CALL_EXPR) |
493 | bp_pack_enum (&bp, internal_fn, IFN_LAST, CALL_EXPR_IFN (expr)); |
494 | } |
495 | |
496 | if (CODE_CONTAINS_STRUCT (code, TS_BLOCK)) |
497 | pack_ts_block_value_fields (ob, bp: &bp, expr); |
498 | |
499 | if (CODE_CONTAINS_STRUCT (code, TS_TRANSLATION_UNIT_DECL)) |
500 | pack_ts_translation_unit_decl_value_fields (ob, bp: &bp, expr); |
501 | |
502 | if (CODE_CONTAINS_STRUCT (code, TS_OPTIMIZATION)) |
503 | cl_optimization_stream_out (ob, &bp, TREE_OPTIMIZATION (expr)); |
504 | |
505 | if (CODE_CONTAINS_STRUCT (code, TS_CONSTRUCTOR)) |
506 | { |
507 | bp_pack_enum (&bp, clobber_kind, CLOBBER_LAST, CLOBBER_KIND (expr)); |
508 | bp_pack_var_len_unsigned (&bp, CONSTRUCTOR_NELTS (expr)); |
509 | } |
510 | |
511 | if (CODE_CONTAINS_STRUCT (code, TS_TARGET_OPTION) |
512 | /* Don't stream these when passing things to a different target. */ |
513 | && !lto_stream_offload_p) |
514 | cl_target_option_stream_out (ob, &bp, TREE_TARGET_OPTION (expr)); |
515 | |
516 | if (code == OMP_CLAUSE) |
517 | pack_ts_omp_clause_value_fields (ob, bp: &bp, expr); |
518 | |
519 | streamer_write_bitpack (bp: &bp); |
520 | } |
521 | |
522 | |
523 | /* Emit the chain of tree nodes starting at T. OB is the output block |
524 | to write to. REF_P is true if chain elements should be emitted |
525 | as references. */ |
526 | |
527 | static void |
528 | streamer_write_chain (struct output_block *ob, tree t) |
529 | { |
530 | while (t) |
531 | { |
532 | /* We avoid outputting external vars or functions by reference |
533 | to the global decls section as we do not want to have them |
534 | enter decl merging. We should not need to do this anymore because |
535 | free_lang_data removes them from block scopes. */ |
536 | gcc_assert (!VAR_OR_FUNCTION_DECL_P (t) || !DECL_EXTERNAL (t)); |
537 | stream_write_tree_ref (ob, t); |
538 | |
539 | t = TREE_CHAIN (t); |
540 | } |
541 | |
542 | /* Write a sentinel to terminate the chain. */ |
543 | stream_write_tree_ref (ob, NULL_TREE); |
544 | } |
545 | |
546 | |
547 | /* Write all pointer fields in the TS_COMMON structure of EXPR to output |
548 | block OB. If REF_P is true, write a reference to EXPR's pointer |
549 | fields. */ |
550 | |
551 | static void |
552 | write_ts_common_tree_pointers (struct output_block *ob, tree expr) |
553 | { |
554 | if (TREE_CODE (expr) != IDENTIFIER_NODE) |
555 | stream_write_tree_ref (ob, TREE_TYPE (expr)); |
556 | } |
557 | |
558 | |
559 | /* Write all pointer fields in the TS_VECTOR structure of EXPR to output |
560 | block OB. If REF_P is true, write a reference to EXPR's pointer |
561 | fields. */ |
562 | |
563 | static void |
564 | write_ts_vector_tree_pointers (struct output_block *ob, tree expr) |
565 | { |
566 | /* Note that the number of elements for EXPR has already been emitted |
567 | in EXPR's header (see streamer_write_tree_header). */ |
568 | unsigned int count = vector_cst_encoded_nelts (t: expr); |
569 | for (unsigned int i = 0; i < count; ++i) |
570 | stream_write_tree_ref (ob, VECTOR_CST_ENCODED_ELT (expr, i)); |
571 | } |
572 | |
573 | |
574 | /* Write all pointer fields in the TS_POLY_INT_CST structure of EXPR to |
575 | output block OB. If REF_P is true, write a reference to EXPR's pointer |
576 | fields. */ |
577 | |
578 | static void |
579 | write_ts_poly_tree_pointers (struct output_block *ob, tree expr) |
580 | { |
581 | for (unsigned int i = 0; i < NUM_POLY_INT_COEFFS; ++i) |
582 | stream_write_tree_ref (ob, POLY_INT_CST_COEFF (expr, i)); |
583 | } |
584 | |
585 | |
586 | /* Write all pointer fields in the TS_COMPLEX structure of EXPR to output |
587 | block OB. If REF_P is true, write a reference to EXPR's pointer |
588 | fields. */ |
589 | |
590 | static void |
591 | write_ts_complex_tree_pointers (struct output_block *ob, tree expr) |
592 | { |
593 | stream_write_tree_ref (ob, TREE_REALPART (expr)); |
594 | stream_write_tree_ref (ob, TREE_IMAGPART (expr)); |
595 | } |
596 | |
597 | |
598 | /* Write all pointer fields in the TS_DECL_MINIMAL structure of EXPR |
599 | to output block OB. If REF_P is true, write a reference to EXPR's |
600 | pointer fields. */ |
601 | |
602 | static void |
603 | write_ts_decl_minimal_tree_pointers (struct output_block *ob, tree expr) |
604 | { |
605 | /* Drop names that were created for anonymous entities. */ |
606 | if (DECL_NAME (expr) |
607 | && TREE_CODE (DECL_NAME (expr)) == IDENTIFIER_NODE |
608 | && IDENTIFIER_ANON_P (DECL_NAME (expr))) |
609 | stream_write_tree_ref (ob, NULL_TREE); |
610 | else |
611 | stream_write_tree_ref (ob, DECL_NAME (expr)); |
612 | if (TREE_CODE (expr) != TRANSLATION_UNIT_DECL |
613 | && ! DECL_CONTEXT (expr)) |
614 | stream_write_tree_ref (ob, (*all_translation_units)[0]); |
615 | else |
616 | stream_write_tree_ref (ob, DECL_CONTEXT (expr)); |
617 | } |
618 | |
619 | |
620 | /* Write all pointer fields in the TS_DECL_COMMON structure of EXPR to |
621 | output block OB. If REF_P is true, write a reference to EXPR's |
622 | pointer fields. */ |
623 | |
624 | static void |
625 | write_ts_decl_common_tree_pointers (struct output_block *ob, tree expr) |
626 | { |
627 | stream_write_tree_ref (ob, DECL_SIZE (expr)); |
628 | stream_write_tree_ref (ob, DECL_SIZE_UNIT (expr)); |
629 | |
630 | /* Note, DECL_INITIAL is not handled here. Since DECL_INITIAL needs |
631 | special handling in LTO, it must be handled by streamer hooks. */ |
632 | |
633 | stream_write_tree_ref (ob, DECL_ATTRIBUTES (expr)); |
634 | |
635 | /* On non-early-LTO enabled targets we claim we compiled with -g0 |
636 | but dwarf2out still did its set_decl_origin_self game fooling |
637 | itself late. Und that here since we won't have access to the |
638 | early generated abstract DIEs. */ |
639 | tree ao = DECL_ABSTRACT_ORIGIN (expr); |
640 | if (debug_info_level == DINFO_LEVEL_NONE |
641 | && ao == expr) |
642 | ao = NULL_TREE; |
643 | stream_write_tree_ref (ob, ao); |
644 | |
645 | if ((VAR_P (expr) || TREE_CODE (expr) == PARM_DECL) |
646 | && DECL_HAS_VALUE_EXPR_P (expr)) |
647 | stream_write_tree_ref (ob, DECL_VALUE_EXPR (expr)); |
648 | |
649 | if (VAR_P (expr) |
650 | && DECL_HAS_DEBUG_EXPR_P (expr)) |
651 | stream_write_tree_ref (ob, DECL_DEBUG_EXPR (expr)); |
652 | } |
653 | |
654 | |
655 | /* Write all pointer fields in the TS_DECL_NON_COMMON structure of |
656 | EXPR to output block OB. If REF_P is true, write a reference to EXPR's |
657 | pointer fields. */ |
658 | |
659 | static void |
660 | write_ts_decl_non_common_tree_pointers (struct output_block *, tree) |
661 | { |
662 | } |
663 | |
664 | |
665 | /* Write all pointer fields in the TS_DECL_WITH_VIS structure of EXPR |
666 | to output block OB. If REF_P is true, write a reference to EXPR's |
667 | pointer fields. */ |
668 | |
669 | static void |
670 | write_ts_decl_with_vis_tree_pointers (struct output_block *ob, tree expr) |
671 | { |
672 | /* Make sure we don't inadvertently set the assembler name. */ |
673 | if (DECL_ASSEMBLER_NAME_SET_P (expr)) |
674 | stream_write_tree_ref (ob, DECL_ASSEMBLER_NAME (expr)); |
675 | else |
676 | stream_write_tree_ref (ob, NULL_TREE); |
677 | } |
678 | |
679 | |
680 | /* Write all pointer fields in the TS_FIELD_DECL structure of EXPR to |
681 | output block OB. If REF_P is true, write a reference to EXPR's |
682 | pointer fields. */ |
683 | |
684 | static void |
685 | write_ts_field_decl_tree_pointers (struct output_block *ob, tree expr) |
686 | { |
687 | stream_write_tree_ref (ob, DECL_FIELD_OFFSET (expr)); |
688 | stream_write_tree_ref (ob, DECL_BIT_FIELD_TYPE (expr)); |
689 | stream_write_tree_ref (ob, DECL_BIT_FIELD_REPRESENTATIVE (expr)); |
690 | stream_write_tree_ref (ob, DECL_FIELD_BIT_OFFSET (expr)); |
691 | } |
692 | |
693 | |
694 | /* Write all pointer fields in the TS_FUNCTION_DECL structure of EXPR |
695 | to output block OB. If REF_P is true, write a reference to EXPR's |
696 | pointer fields. */ |
697 | |
698 | static void |
699 | write_ts_function_decl_tree_pointers (struct output_block *ob, tree expr) |
700 | { |
701 | /* DECL_STRUCT_FUNCTION is handled by lto_output_function. */ |
702 | stream_write_tree_ref (ob, DECL_FUNCTION_PERSONALITY (expr)); |
703 | /* Don't stream these when passing things to a different target. */ |
704 | if (!lto_stream_offload_p) |
705 | stream_write_tree_ref (ob, DECL_FUNCTION_SPECIFIC_TARGET (expr)); |
706 | stream_write_tree_ref (ob, DECL_FUNCTION_SPECIFIC_OPTIMIZATION (expr)); |
707 | } |
708 | |
709 | |
710 | /* Write all pointer fields in the TS_TYPE_COMMON structure of EXPR to |
711 | output block OB. If REF_P is true, write a reference to EXPR's |
712 | pointer fields. */ |
713 | |
714 | static void |
715 | write_ts_type_common_tree_pointers (struct output_block *ob, tree expr) |
716 | { |
717 | stream_write_tree_ref (ob, TYPE_SIZE (expr)); |
718 | stream_write_tree_ref (ob, TYPE_SIZE_UNIT (expr)); |
719 | stream_write_tree_ref (ob, TYPE_ATTRIBUTES (expr)); |
720 | stream_write_tree_ref (ob, TYPE_NAME (expr)); |
721 | /* Do not stream TYPE_POINTER_TO or TYPE_REFERENCE_TO. They will be |
722 | reconstructed during fixup. */ |
723 | /* Do not stream TYPE_NEXT_VARIANT, we reconstruct the variant lists |
724 | during fixup. */ |
725 | stream_write_tree_ref (ob, TYPE_MAIN_VARIANT (expr)); |
726 | stream_write_tree_ref (ob, TYPE_CONTEXT (expr)); |
727 | /* TYPE_CANONICAL is re-computed during type merging, so no need |
728 | to stream it here. */ |
729 | /* Do not stream TYPE_STUB_DECL; it is not needed by LTO but currently |
730 | it cannot be freed by free_lang_data without triggering ICEs in |
731 | langhooks. */ |
732 | } |
733 | |
734 | /* Write all pointer fields in the TS_TYPE_NON_COMMON structure of EXPR |
735 | to output block OB. If REF_P is true, write a reference to EXPR's |
736 | pointer fields. */ |
737 | |
738 | static void |
739 | write_ts_type_non_common_tree_pointers (struct output_block *ob, tree expr) |
740 | { |
741 | if (TREE_CODE (expr) == ARRAY_TYPE) |
742 | stream_write_tree_ref (ob, TYPE_DOMAIN (expr)); |
743 | else if (RECORD_OR_UNION_TYPE_P (expr)) |
744 | streamer_write_chain (ob, TYPE_FIELDS (expr)); |
745 | else if (FUNC_OR_METHOD_TYPE_P (expr)) |
746 | stream_write_tree_ref (ob, TYPE_ARG_TYPES (expr)); |
747 | |
748 | if (!POINTER_TYPE_P (expr)) |
749 | stream_write_tree_ref (ob, TYPE_MIN_VALUE_RAW (expr)); |
750 | stream_write_tree_ref (ob, TYPE_MAX_VALUE_RAW (expr)); |
751 | } |
752 | |
753 | |
754 | /* Write all pointer fields in the TS_LIST structure of EXPR to output |
755 | block OB. If REF_P is true, write a reference to EXPR's pointer |
756 | fields. */ |
757 | |
758 | static void |
759 | write_ts_list_tree_pointers (struct output_block *ob, tree expr) |
760 | { |
761 | stream_write_tree_ref (ob, TREE_PURPOSE (expr)); |
762 | stream_write_tree_ref (ob, TREE_VALUE (expr)); |
763 | stream_write_tree_ref (ob, TREE_CHAIN (expr)); |
764 | } |
765 | |
766 | |
767 | /* Write all pointer fields in the TS_VEC structure of EXPR to output |
768 | block OB. If REF_P is true, write a reference to EXPR's pointer |
769 | fields. */ |
770 | |
771 | static void |
772 | write_ts_vec_tree_pointers (struct output_block *ob, tree expr) |
773 | { |
774 | int i; |
775 | |
776 | /* Note that the number of slots for EXPR has already been emitted |
777 | in EXPR's header (see streamer_write_tree_header). */ |
778 | for (i = 0; i < TREE_VEC_LENGTH (expr); i++) |
779 | stream_write_tree_ref (ob, TREE_VEC_ELT (expr, i)); |
780 | } |
781 | |
782 | |
783 | /* Write all pointer fields in the TS_EXP structure of EXPR to output |
784 | block OB. If REF_P is true, write a reference to EXPR's pointer |
785 | fields. */ |
786 | |
787 | static void |
788 | write_ts_exp_tree_pointers (struct output_block *ob, tree expr) |
789 | { |
790 | int i; |
791 | |
792 | for (i = 0; i < TREE_OPERAND_LENGTH (expr); i++) |
793 | stream_write_tree_ref (ob, TREE_OPERAND (expr, i)); |
794 | stream_write_tree_ref (ob, TREE_BLOCK (expr)); |
795 | } |
796 | |
797 | |
798 | /* Write all pointer fields in the TS_BLOCK structure of EXPR to output |
799 | block OB. If REF_P is true, write a reference to EXPR's pointer |
800 | fields. */ |
801 | |
802 | static void |
803 | write_ts_block_tree_pointers (struct output_block *ob, tree expr) |
804 | { |
805 | streamer_write_chain (ob, BLOCK_VARS (expr)); |
806 | |
807 | stream_write_tree_ref (ob, BLOCK_SUPERCONTEXT (expr)); |
808 | stream_write_tree_ref (ob, BLOCK_ABSTRACT_ORIGIN (expr)); |
809 | |
810 | /* Do not stream BLOCK_NONLOCALIZED_VARS. We cannot handle debug information |
811 | for early inlined BLOCKs so drop it on the floor instead of ICEing in |
812 | dwarf2out.cc. */ |
813 | |
814 | /* BLOCK_FRAGMENT_ORIGIN and BLOCK_FRAGMENT_CHAIN is not live at LTO |
815 | streaming time. */ |
816 | |
817 | /* Do not output BLOCK_SUBBLOCKS. Instead on streaming-in this |
818 | list is re-constructed from BLOCK_SUPERCONTEXT. */ |
819 | } |
820 | |
821 | |
822 | /* Write all pointer fields in the TS_BINFO structure of EXPR to output |
823 | block OB. If REF_P is true, write a reference to EXPR's pointer |
824 | fields. */ |
825 | |
826 | static void |
827 | write_ts_binfo_tree_pointers (struct output_block *ob, tree expr) |
828 | { |
829 | unsigned i; |
830 | tree t; |
831 | |
832 | /* Note that the number of BINFO slots has already been emitted in |
833 | EXPR's header (see streamer_write_tree_header) because this length |
834 | is needed to build the empty BINFO node on the reader side. */ |
835 | FOR_EACH_VEC_ELT (*BINFO_BASE_BINFOS (expr), i, t) |
836 | stream_write_tree_ref (ob, t); |
837 | stream_write_tree_ref (ob, NULL_TREE); |
838 | |
839 | stream_write_tree_ref (ob, BINFO_OFFSET (expr)); |
840 | stream_write_tree_ref (ob, BINFO_VTABLE (expr)); |
841 | |
842 | /* Do not walk BINFO_INHERITANCE_CHAIN, BINFO_SUBVTT_INDEX, |
843 | BINFO_BASE_ACCESSES and BINFO_VPTR_INDEX; these are used by C++ FE only. */ |
844 | } |
845 | |
846 | |
847 | /* Write all pointer fields in the TS_CONSTRUCTOR structure of EXPR to |
848 | output block OB. If REF_P is true, write a reference to EXPR's |
849 | pointer fields. */ |
850 | |
851 | static void |
852 | write_ts_constructor_tree_pointers (struct output_block *ob, tree expr) |
853 | { |
854 | unsigned i; |
855 | tree index, value; |
856 | |
857 | FOR_EACH_CONSTRUCTOR_ELT (CONSTRUCTOR_ELTS (expr), i, index, value) |
858 | { |
859 | stream_write_tree_ref (ob, index); |
860 | stream_write_tree_ref (ob, value); |
861 | } |
862 | } |
863 | |
864 | |
865 | /* Write all pointer fields in the TS_OMP_CLAUSE structure of EXPR |
866 | to output block OB. If REF_P is true, write a reference to EXPR's |
867 | pointer fields. */ |
868 | |
869 | static void |
870 | write_ts_omp_clause_tree_pointers (struct output_block *ob, tree expr) |
871 | { |
872 | int i; |
873 | for (i = 0; i < omp_clause_num_ops[OMP_CLAUSE_CODE (expr)]; i++) |
874 | stream_write_tree_ref (ob, OMP_CLAUSE_OPERAND (expr, i)); |
875 | switch (OMP_CLAUSE_CODE (expr)) |
876 | { |
877 | case OMP_CLAUSE_REDUCTION: |
878 | case OMP_CLAUSE_TASK_REDUCTION: |
879 | case OMP_CLAUSE_IN_REDUCTION: |
880 | /* We don't stream these right now, handle it if streaming |
881 | of them is needed. */ |
882 | gcc_assert (OMP_CLAUSE_REDUCTION_GIMPLE_INIT (expr) == NULL); |
883 | gcc_assert (OMP_CLAUSE_REDUCTION_GIMPLE_MERGE (expr) == NULL); |
884 | break; |
885 | default: |
886 | break; |
887 | } |
888 | stream_write_tree_ref (ob, OMP_CLAUSE_CHAIN (expr)); |
889 | } |
890 | |
891 | |
892 | /* Write all pointer fields in EXPR to output block OB. If REF_P is true, |
893 | the leaves of EXPR are emitted as references. */ |
894 | |
895 | void |
896 | streamer_write_tree_body (struct output_block *ob, tree expr) |
897 | { |
898 | enum tree_code code; |
899 | |
900 | lto_stats.num_tree_bodies_output++; |
901 | |
902 | code = TREE_CODE (expr); |
903 | |
904 | if (CODE_CONTAINS_STRUCT (code, TS_TYPED)) |
905 | write_ts_common_tree_pointers (ob, expr); |
906 | |
907 | if (CODE_CONTAINS_STRUCT (code, TS_VECTOR)) |
908 | write_ts_vector_tree_pointers (ob, expr); |
909 | |
910 | if (CODE_CONTAINS_STRUCT (code, TS_POLY_INT_CST)) |
911 | write_ts_poly_tree_pointers (ob, expr); |
912 | |
913 | if (CODE_CONTAINS_STRUCT (code, TS_COMPLEX)) |
914 | write_ts_complex_tree_pointers (ob, expr); |
915 | |
916 | if (CODE_CONTAINS_STRUCT (code, TS_DECL_MINIMAL)) |
917 | write_ts_decl_minimal_tree_pointers (ob, expr); |
918 | |
919 | if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON)) |
920 | write_ts_decl_common_tree_pointers (ob, expr); |
921 | |
922 | if (CODE_CONTAINS_STRUCT (code, TS_DECL_NON_COMMON)) |
923 | write_ts_decl_non_common_tree_pointers (ob, expr); |
924 | |
925 | if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS)) |
926 | write_ts_decl_with_vis_tree_pointers (ob, expr); |
927 | |
928 | if (CODE_CONTAINS_STRUCT (code, TS_FIELD_DECL)) |
929 | write_ts_field_decl_tree_pointers (ob, expr); |
930 | |
931 | if (CODE_CONTAINS_STRUCT (code, TS_FUNCTION_DECL)) |
932 | write_ts_function_decl_tree_pointers (ob, expr); |
933 | |
934 | if (CODE_CONTAINS_STRUCT (code, TS_TYPE_COMMON)) |
935 | write_ts_type_common_tree_pointers (ob, expr); |
936 | |
937 | if (CODE_CONTAINS_STRUCT (code, TS_TYPE_NON_COMMON)) |
938 | write_ts_type_non_common_tree_pointers (ob, expr); |
939 | |
940 | if (CODE_CONTAINS_STRUCT (code, TS_LIST)) |
941 | write_ts_list_tree_pointers (ob, expr); |
942 | |
943 | if (CODE_CONTAINS_STRUCT (code, TS_VEC)) |
944 | write_ts_vec_tree_pointers (ob, expr); |
945 | |
946 | if (CODE_CONTAINS_STRUCT (code, TS_EXP)) |
947 | write_ts_exp_tree_pointers (ob, expr); |
948 | |
949 | if (CODE_CONTAINS_STRUCT (code, TS_BLOCK)) |
950 | write_ts_block_tree_pointers (ob, expr); |
951 | |
952 | if (CODE_CONTAINS_STRUCT (code, TS_BINFO)) |
953 | write_ts_binfo_tree_pointers (ob, expr); |
954 | |
955 | if (CODE_CONTAINS_STRUCT (code, TS_CONSTRUCTOR)) |
956 | write_ts_constructor_tree_pointers (ob, expr); |
957 | |
958 | if (code == OMP_CLAUSE) |
959 | write_ts_omp_clause_tree_pointers (ob, expr); |
960 | } |
961 | |
962 | |
963 | /* Emit header information for tree EXPR to output block OB. The header |
964 | contains everything needed to instantiate an empty skeleton for |
965 | EXPR on the reading side. IX is the index into the streamer cache |
966 | where EXPR is stored. */ |
967 | |
968 | void |
969 | (struct output_block *ob, tree expr) |
970 | { |
971 | enum LTO_tags tag; |
972 | enum tree_code code; |
973 | |
974 | if (streamer_dump_file) |
975 | { |
976 | print_node_brief (streamer_dump_file, " Streaming header of " , |
977 | expr, 4); |
978 | fprintf (stream: streamer_dump_file, format: " to %s\n" , |
979 | lto_section_name[ob->section_type]); |
980 | } |
981 | |
982 | /* We should not see any tree nodes not handled by the streamer. */ |
983 | code = TREE_CODE (expr); |
984 | |
985 | /* The header of a tree node consists of its tag, the size of |
986 | the node, and any other information needed to instantiate |
987 | EXPR on the reading side (such as the number of slots in |
988 | variable sized nodes). */ |
989 | tag = lto_tree_code_to_tag (code); |
990 | streamer_write_record_start (ob, tag); |
991 | |
992 | /* The text in strings and identifiers are completely emitted in |
993 | the header. */ |
994 | if (CODE_CONTAINS_STRUCT (code, TS_STRING)) |
995 | streamer_write_string_cst (ob, index_stream: ob->main_stream, string: expr); |
996 | else if (CODE_CONTAINS_STRUCT (code, TS_IDENTIFIER)) |
997 | write_identifier (ob, index_stream: ob->main_stream, id: expr); |
998 | else if (CODE_CONTAINS_STRUCT (code, TS_VECTOR)) |
999 | { |
1000 | bitpack_d bp = bitpack_create (s: ob->main_stream); |
1001 | bp_pack_value (bp: &bp, VECTOR_CST_LOG2_NPATTERNS (expr), nbits: 8); |
1002 | bp_pack_value (bp: &bp, VECTOR_CST_NELTS_PER_PATTERN (expr), nbits: 8); |
1003 | streamer_write_bitpack (bp: &bp); |
1004 | } |
1005 | else if (CODE_CONTAINS_STRUCT (code, TS_VEC)) |
1006 | streamer_write_hwi (ob, TREE_VEC_LENGTH (expr)); |
1007 | else if (CODE_CONTAINS_STRUCT (code, TS_BINFO)) |
1008 | streamer_write_uhwi (ob, BINFO_N_BASE_BINFOS (expr)); |
1009 | else if (TREE_CODE (expr) == CALL_EXPR) |
1010 | streamer_write_uhwi (ob, call_expr_nargs (expr)); |
1011 | else if (TREE_CODE (expr) == OMP_CLAUSE) |
1012 | streamer_write_uhwi (ob, OMP_CLAUSE_CODE (expr)); |
1013 | else if (CODE_CONTAINS_STRUCT (code, TS_INT_CST)) |
1014 | { |
1015 | gcc_checking_assert (TREE_INT_CST_NUNITS (expr)); |
1016 | streamer_write_uhwi (ob, TREE_INT_CST_NUNITS (expr)); |
1017 | streamer_write_uhwi (ob, TREE_INT_CST_EXT_NUNITS (expr)); |
1018 | } |
1019 | } |
1020 | |
1021 | |
1022 | /* Emit the integer constant CST to output block OB. If REF_P is true, |
1023 | CST's type will be emitted as a reference. */ |
1024 | |
1025 | void |
1026 | streamer_write_integer_cst (struct output_block *ob, tree cst) |
1027 | { |
1028 | int i; |
1029 | int len = TREE_INT_CST_NUNITS (cst); |
1030 | gcc_assert (!TREE_OVERFLOW (cst)); |
1031 | if (streamer_dump_file) |
1032 | { |
1033 | print_node_brief (streamer_dump_file, " Streaming integer " , |
1034 | cst, 4); |
1035 | fprintf (stream: streamer_dump_file, format: "\n" ); |
1036 | } |
1037 | streamer_write_record_start (ob, tag: LTO_integer_cst); |
1038 | stream_write_tree_ref (ob, TREE_TYPE (cst)); |
1039 | /* We're effectively streaming a non-sign-extended wide_int here, |
1040 | so there's no need to stream TREE_INT_CST_EXT_NUNITS or any |
1041 | array members beyond LEN. We'll recreate the tree from the |
1042 | wide_int and the type. */ |
1043 | streamer_write_uhwi (ob, len); |
1044 | for (i = 0; i < len; i++) |
1045 | streamer_write_hwi (ob, TREE_INT_CST_ELT (cst, i)); |
1046 | } |
1047 | |