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[thirdparty/gcc.git] / gcc / tree-streamer-in.c
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2541503d 1/* Routines for reading trees from a file stream.
2
3aea1f79 3 Copyright (C) 2011-2014 Free Software Foundation, Inc.
2541503d 4 Contributed by Diego Novillo <dnovillo@google.com>
5
6This file is part of GCC.
7
8GCC is free software; you can redistribute it and/or modify it under
9the terms of the GNU General Public License as published by the Free
10Software Foundation; either version 3, or (at your option) any later
11version.
12
13GCC is distributed in the hope that it will be useful, but WITHOUT ANY
14WARRANTY; without even the implied warranty of MERCHANTABILITY or
15FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16for more details.
17
18You should have received a copy of the GNU General Public License
19along 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 "diagnostic.h"
26#include "tree.h"
9ed99284 27#include "stringpool.h"
bc61cadb 28#include "basic-block.h"
29#include "tree-ssa-alias.h"
30#include "internal-fn.h"
31#include "gimple-expr.h"
32#include "is-a.h"
b23fb4cb 33#include "gimple.h"
2541503d 34#include "tree-streamer.h"
35#include "data-streamer.h"
36#include "streamer-hooks.h"
37#include "lto-streamer.h"
f7715905 38#include "builtins.h"
2541503d 39
40/* Read a STRING_CST from the string table in DATA_IN using input
41 block IB. */
42
43tree
7f385784 44streamer_read_string_cst (struct data_in *data_in, struct lto_input_block *ib)
2541503d 45{
46 unsigned int len;
47 const char * ptr;
48
7f385784 49 ptr = streamer_read_indexed_string (data_in, ib, &len);
2541503d 50 if (!ptr)
51 return NULL;
52 return build_string (len, ptr);
53}
54
55
56/* Read an IDENTIFIER from the string table in DATA_IN using input
57 block IB. */
58
59static tree
60input_identifier (struct data_in *data_in, struct lto_input_block *ib)
61{
62 unsigned int len;
63 const char *ptr;
64
7f385784 65 ptr = streamer_read_indexed_string (data_in, ib, &len);
2541503d 66 if (!ptr)
67 return NULL;
68 return get_identifier_with_length (ptr, len);
69}
70
71
72/* Read a chain of tree nodes from input block IB. DATA_IN contains
73 tables and descriptors for the file being read. */
74
7f385784 75tree
76streamer_read_chain (struct lto_input_block *ib, struct data_in *data_in)
2541503d 77{
2541503d 78 tree first, prev, curr;
79
e41fac10 80 /* The chain is written as NULL terminated list of trees. */
2541503d 81 first = prev = NULL_TREE;
e41fac10 82 do
2541503d 83 {
515cf651 84 curr = stream_read_tree (ib, data_in);
2541503d 85 if (prev)
86 TREE_CHAIN (prev) = curr;
87 else
88 first = curr;
89
2541503d 90 prev = curr;
91 }
e41fac10 92 while (curr);
2541503d 93
94 return first;
95}
96
97
98/* Unpack all the non-pointer fields of the TS_BASE structure of
99 expression EXPR from bitpack BP. */
100
101static void
102unpack_ts_base_value_fields (struct bitpack_d *bp, tree expr)
103{
104 /* Note that the code for EXPR has already been unpacked to create EXPR in
7f385784 105 streamer_alloc_tree. */
2541503d 106 if (!TYPE_P (expr))
107 {
108 TREE_SIDE_EFFECTS (expr) = (unsigned) bp_unpack_value (bp, 1);
109 TREE_CONSTANT (expr) = (unsigned) bp_unpack_value (bp, 1);
110 TREE_READONLY (expr) = (unsigned) bp_unpack_value (bp, 1);
111
112 /* TREE_PUBLIC is used on types to indicate that the type
113 has a TYPE_CACHED_VALUES vector. This is not streamed out,
114 so we skip it here. */
115 TREE_PUBLIC (expr) = (unsigned) bp_unpack_value (bp, 1);
116 }
117 else
118 bp_unpack_value (bp, 4);
119 TREE_ADDRESSABLE (expr) = (unsigned) bp_unpack_value (bp, 1);
120 TREE_THIS_VOLATILE (expr) = (unsigned) bp_unpack_value (bp, 1);
121 if (DECL_P (expr))
122 DECL_UNSIGNED (expr) = (unsigned) bp_unpack_value (bp, 1);
123 else if (TYPE_P (expr))
124 TYPE_UNSIGNED (expr) = (unsigned) bp_unpack_value (bp, 1);
125 else
126 bp_unpack_value (bp, 1);
127 TREE_ASM_WRITTEN (expr) = (unsigned) bp_unpack_value (bp, 1);
128 if (TYPE_P (expr))
129 TYPE_ARTIFICIAL (expr) = (unsigned) bp_unpack_value (bp, 1);
130 else
131 TREE_NO_WARNING (expr) = (unsigned) bp_unpack_value (bp, 1);
2541503d 132 TREE_NOTHROW (expr) = (unsigned) bp_unpack_value (bp, 1);
133 TREE_STATIC (expr) = (unsigned) bp_unpack_value (bp, 1);
8ceff600 134 if (TREE_CODE (expr) != TREE_BINFO)
135 TREE_PRIVATE (expr) = (unsigned) bp_unpack_value (bp, 1);
2541503d 136 TREE_PROTECTED (expr) = (unsigned) bp_unpack_value (bp, 1);
137 TREE_DEPRECATED (expr) = (unsigned) bp_unpack_value (bp, 1);
138 if (TYPE_P (expr))
2436e5d5 139 {
140 TYPE_SATURATING (expr) = (unsigned) bp_unpack_value (bp, 1);
141 TYPE_ADDR_SPACE (expr) = (unsigned) bp_unpack_value (bp, 8);
142 }
2541503d 143 else if (TREE_CODE (expr) == SSA_NAME)
144 SSA_NAME_IS_DEFAULT_DEF (expr) = (unsigned) bp_unpack_value (bp, 1);
145 else
146 bp_unpack_value (bp, 1);
147}
148
149
42603940 150/* Unpack all the non-pointer fields of the TS_INT_CST structure of
151 expression EXPR from bitpack BP. */
152
153static void
154unpack_ts_int_cst_value_fields (struct bitpack_d *bp, tree expr)
155{
e913b5cd 156 int i;
271e739a 157 for (i = 0; i < TREE_INT_CST_EXT_NUNITS (expr); i++)
e913b5cd 158 TREE_INT_CST_ELT (expr, i) = bp_unpack_var_len_int (bp);
42603940 159}
160
161
2541503d 162/* Unpack all the non-pointer fields of the TS_REAL_CST structure of
163 expression EXPR from bitpack BP. */
164
165static void
166unpack_ts_real_cst_value_fields (struct bitpack_d *bp, tree expr)
167{
168 unsigned i;
169 REAL_VALUE_TYPE r;
170 REAL_VALUE_TYPE *rp;
171
2b8335eb 172 /* Clear all bits of the real value type so that we can later do
173 bitwise comparisons to see if two values are the same. */
174 memset (&r, 0, sizeof r);
2541503d 175 r.cl = (unsigned) bp_unpack_value (bp, 2);
176 r.decimal = (unsigned) bp_unpack_value (bp, 1);
177 r.sign = (unsigned) bp_unpack_value (bp, 1);
178 r.signalling = (unsigned) bp_unpack_value (bp, 1);
179 r.canonical = (unsigned) bp_unpack_value (bp, 1);
180 r.uexp = (unsigned) bp_unpack_value (bp, EXP_BITS);
181 for (i = 0; i < SIGSZ; i++)
182 r.sig[i] = (unsigned long) bp_unpack_value (bp, HOST_BITS_PER_LONG);
183
25a27413 184 rp = ggc_alloc<real_value> ();
2541503d 185 memcpy (rp, &r, sizeof (REAL_VALUE_TYPE));
186 TREE_REAL_CST_PTR (expr) = rp;
187}
188
189
190/* Unpack all the non-pointer fields of the TS_FIXED_CST structure of
191 expression EXPR from bitpack BP. */
192
193static void
194unpack_ts_fixed_cst_value_fields (struct bitpack_d *bp, tree expr)
195{
25a27413 196 FIXED_VALUE_TYPE *fp = ggc_alloc<fixed_value> ();
0920ab59 197 fp->mode = bp_unpack_enum (bp, machine_mode, MAX_MACHINE_MODE);
198 fp->data.low = bp_unpack_var_len_int (bp);
199 fp->data.high = bp_unpack_var_len_int (bp);
200 TREE_FIXED_CST_PTR (expr) = fp;
2541503d 201}
202
2541503d 203/* Unpack all the non-pointer fields of the TS_DECL_COMMON structure
204 of expression EXPR from bitpack BP. */
205
206static void
207unpack_ts_decl_common_value_fields (struct bitpack_d *bp, tree expr)
208{
209 DECL_MODE (expr) = bp_unpack_enum (bp, machine_mode, MAX_MACHINE_MODE);
210 DECL_NONLOCAL (expr) = (unsigned) bp_unpack_value (bp, 1);
211 DECL_VIRTUAL_P (expr) = (unsigned) bp_unpack_value (bp, 1);
212 DECL_IGNORED_P (expr) = (unsigned) bp_unpack_value (bp, 1);
213 DECL_ABSTRACT (expr) = (unsigned) bp_unpack_value (bp, 1);
214 DECL_ARTIFICIAL (expr) = (unsigned) bp_unpack_value (bp, 1);
215 DECL_USER_ALIGN (expr) = (unsigned) bp_unpack_value (bp, 1);
216 DECL_PRESERVE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
2541503d 217 DECL_EXTERNAL (expr) = (unsigned) bp_unpack_value (bp, 1);
218 DECL_GIMPLE_REG_P (expr) = (unsigned) bp_unpack_value (bp, 1);
219 DECL_ALIGN (expr) = (unsigned) bp_unpack_var_len_unsigned (bp);
220
221 if (TREE_CODE (expr) == LABEL_DECL)
222 {
2541503d 223 EH_LANDING_PAD_NR (expr) = (int) bp_unpack_var_len_unsigned (bp);
224
225 /* Always assume an initial value of -1 for LABEL_DECL_UID to
226 force gimple_set_bb to recreate label_to_block_map. */
227 LABEL_DECL_UID (expr) = -1;
228 }
229
230 if (TREE_CODE (expr) == FIELD_DECL)
231 {
232 DECL_PACKED (expr) = (unsigned) bp_unpack_value (bp, 1);
233 DECL_NONADDRESSABLE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
234 expr->decl_common.off_align = bp_unpack_value (bp, 8);
235 }
236
05c14132 237 if (TREE_CODE (expr) == VAR_DECL)
8e966116 238 {
239 DECL_HAS_DEBUG_EXPR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
240 DECL_NONLOCAL_FRAME (expr) = (unsigned) bp_unpack_value (bp, 1);
241 }
05c14132 242
2541503d 243 if (TREE_CODE (expr) == RESULT_DECL
244 || TREE_CODE (expr) == PARM_DECL
245 || TREE_CODE (expr) == VAR_DECL)
246 {
247 DECL_BY_REFERENCE (expr) = (unsigned) bp_unpack_value (bp, 1);
248 if (TREE_CODE (expr) == VAR_DECL
249 || TREE_CODE (expr) == PARM_DECL)
250 DECL_HAS_VALUE_EXPR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
2541503d 251 }
252}
253
254
255/* Unpack all the non-pointer fields of the TS_DECL_WRTL structure
256 of expression EXPR from bitpack BP. */
257
258static void
259unpack_ts_decl_wrtl_value_fields (struct bitpack_d *bp, tree expr)
260{
261 DECL_REGISTER (expr) = (unsigned) bp_unpack_value (bp, 1);
262}
263
264
265/* Unpack all the non-pointer fields of the TS_DECL_WITH_VIS structure
266 of expression EXPR from bitpack BP. */
267
268static void
269unpack_ts_decl_with_vis_value_fields (struct bitpack_d *bp, tree expr)
270{
2541503d 271 DECL_COMMON (expr) = (unsigned) bp_unpack_value (bp, 1);
272 DECL_DLLIMPORT_P (expr) = (unsigned) bp_unpack_value (bp, 1);
273 DECL_WEAK (expr) = (unsigned) bp_unpack_value (bp, 1);
274 DECL_SEEN_IN_BIND_EXPR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
275 DECL_COMDAT (expr) = (unsigned) bp_unpack_value (bp, 1);
276 DECL_VISIBILITY (expr) = (enum symbol_visibility) bp_unpack_value (bp, 2);
277 DECL_VISIBILITY_SPECIFIED (expr) = (unsigned) bp_unpack_value (bp, 1);
278
279 if (TREE_CODE (expr) == VAR_DECL)
280 {
281 DECL_HARD_REGISTER (expr) = (unsigned) bp_unpack_value (bp, 1);
2541503d 282 DECL_IN_CONSTANT_POOL (expr) = (unsigned) bp_unpack_value (bp, 1);
2541503d 283 }
284
2d9cc481 285 if (TREE_CODE (expr) == FUNCTION_DECL)
286 {
287 DECL_FINAL_P (expr) = (unsigned) bp_unpack_value (bp, 1);
288 DECL_CXX_CONSTRUCTOR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
289 DECL_CXX_DESTRUCTOR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
290 }
2541503d 291}
292
293
294/* Unpack all the non-pointer fields of the TS_FUNCTION_DECL structure
295 of expression EXPR from bitpack BP. */
296
297static void
298unpack_ts_function_decl_value_fields (struct bitpack_d *bp, tree expr)
299{
300 DECL_BUILT_IN_CLASS (expr) = bp_unpack_enum (bp, built_in_class,
301 BUILT_IN_LAST);
302 DECL_STATIC_CONSTRUCTOR (expr) = (unsigned) bp_unpack_value (bp, 1);
303 DECL_STATIC_DESTRUCTOR (expr) = (unsigned) bp_unpack_value (bp, 1);
304 DECL_UNINLINABLE (expr) = (unsigned) bp_unpack_value (bp, 1);
305 DECL_POSSIBLY_INLINED (expr) = (unsigned) bp_unpack_value (bp, 1);
306 DECL_IS_NOVOPS (expr) = (unsigned) bp_unpack_value (bp, 1);
307 DECL_IS_RETURNS_TWICE (expr) = (unsigned) bp_unpack_value (bp, 1);
308 DECL_IS_MALLOC (expr) = (unsigned) bp_unpack_value (bp, 1);
309 DECL_IS_OPERATOR_NEW (expr) = (unsigned) bp_unpack_value (bp, 1);
310 DECL_DECLARED_INLINE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
311 DECL_STATIC_CHAIN (expr) = (unsigned) bp_unpack_value (bp, 1);
312 DECL_NO_INLINE_WARNING_P (expr) = (unsigned) bp_unpack_value (bp, 1);
313 DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT (expr)
314 = (unsigned) bp_unpack_value (bp, 1);
315 DECL_NO_LIMIT_STACK (expr) = (unsigned) bp_unpack_value (bp, 1);
316 DECL_DISREGARD_INLINE_LIMITS (expr) = (unsigned) bp_unpack_value (bp, 1);
317 DECL_PURE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
318 DECL_LOOPING_CONST_OR_PURE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
319 if (DECL_BUILT_IN_CLASS (expr) != NOT_BUILT_IN)
320 {
321 DECL_FUNCTION_CODE (expr) = (enum built_in_function) bp_unpack_value (bp,
322 11);
323 if (DECL_BUILT_IN_CLASS (expr) == BUILT_IN_NORMAL
324 && DECL_FUNCTION_CODE (expr) >= END_BUILTINS)
325 fatal_error ("machine independent builtin code out of range");
326 else if (DECL_BUILT_IN_CLASS (expr) == BUILT_IN_MD)
327 {
328 tree result = targetm.builtin_decl (DECL_FUNCTION_CODE (expr), true);
329 if (!result || result == error_mark_node)
330 fatal_error ("target specific builtin not available");
331 }
332 }
2541503d 333}
334
335
336/* Unpack all the non-pointer fields of the TS_TYPE_COMMON structure
337 of expression EXPR from bitpack BP. */
338
339static void
340unpack_ts_type_common_value_fields (struct bitpack_d *bp, tree expr)
341{
342 enum machine_mode mode;
343
344 mode = bp_unpack_enum (bp, machine_mode, MAX_MACHINE_MODE);
345 SET_TYPE_MODE (expr, mode);
346 TYPE_STRING_FLAG (expr) = (unsigned) bp_unpack_value (bp, 1);
347 TYPE_NO_FORCE_BLK (expr) = (unsigned) bp_unpack_value (bp, 1);
348 TYPE_NEEDS_CONSTRUCTING (expr) = (unsigned) bp_unpack_value (bp, 1);
349 if (RECORD_OR_UNION_TYPE_P (expr))
2d9cc481 350 {
351 TYPE_TRANSPARENT_AGGR (expr) = (unsigned) bp_unpack_value (bp, 1);
352 TYPE_FINAL_P (expr) = (unsigned) bp_unpack_value (bp, 1);
353 }
f7fa455c 354 else if (TREE_CODE (expr) == ARRAY_TYPE)
355 TYPE_NONALIASED_COMPONENT (expr) = (unsigned) bp_unpack_value (bp, 1);
2541503d 356 TYPE_PACKED (expr) = (unsigned) bp_unpack_value (bp, 1);
357 TYPE_RESTRICT (expr) = (unsigned) bp_unpack_value (bp, 1);
2541503d 358 TYPE_USER_ALIGN (expr) = (unsigned) bp_unpack_value (bp, 1);
359 TYPE_READONLY (expr) = (unsigned) bp_unpack_value (bp, 1);
360 TYPE_PRECISION (expr) = bp_unpack_var_len_unsigned (bp);
361 TYPE_ALIGN (expr) = bp_unpack_var_len_unsigned (bp);
362 TYPE_ALIAS_SET (expr) = bp_unpack_var_len_int (bp);
363}
364
365
366/* Unpack all the non-pointer fields of the TS_BLOCK structure
367 of expression EXPR from bitpack BP. */
368
369static void
ec180527 370unpack_ts_block_value_fields (struct data_in *data_in,
371 struct bitpack_d *bp, tree expr)
2541503d 372{
373 BLOCK_ABSTRACT (expr) = (unsigned) bp_unpack_value (bp, 1);
374 /* BLOCK_NUMBER is recomputed. */
ec180527 375 BLOCK_SOURCE_LOCATION (expr) = stream_input_location (bp, data_in);
2541503d 376}
377
378/* Unpack all the non-pointer fields of the TS_TRANSLATION_UNIT_DECL
379 structure of expression EXPR from bitpack BP. */
380
381static void
07de37ab 382unpack_ts_translation_unit_decl_value_fields (struct data_in *data_in,
383 struct bitpack_d *bp, tree expr)
2541503d 384{
07de37ab 385 TRANSLATION_UNIT_LANGUAGE (expr) = xstrdup (bp_unpack_string (data_in, bp));
f1f41a6c 386 vec_safe_push (all_translation_units, expr);
2541503d 387}
388
51136fa7 389/* Unpack a TS_OPTIMIZATION tree from BP into EXPR. */
390
391static void
392unpack_ts_optimization (struct bitpack_d *bp, tree expr)
393{
394 unsigned i, len;
395 struct cl_optimization *t = TREE_OPTIMIZATION (expr);
396
397 len = sizeof (struct cl_optimization);
398 for (i = 0; i < len; i++)
399 ((unsigned char *)t)[i] = bp_unpack_value (bp, 8);
400 if (bp_unpack_value (bp, 32) != 0x12345678)
401 fatal_error ("cl_optimization size mismatch in LTO reader and writer");
402}
403
404
fe3e3369 405/* Unpack all the non-pointer fields of the TS_OMP_CLAUSE
406 structure of expression EXPR from bitpack BP. */
407
408static void
409unpack_ts_omp_clause_value_fields (struct data_in *data_in,
410 struct bitpack_d *bp, tree expr)
411{
412 OMP_CLAUSE_LOCATION (expr) = stream_input_location (bp, data_in);
413 switch (OMP_CLAUSE_CODE (expr))
414 {
415 case OMP_CLAUSE_DEFAULT:
416 OMP_CLAUSE_DEFAULT_KIND (expr)
417 = bp_unpack_enum (bp, omp_clause_default_kind,
418 OMP_CLAUSE_DEFAULT_LAST);
419 break;
420 case OMP_CLAUSE_SCHEDULE:
421 OMP_CLAUSE_SCHEDULE_KIND (expr)
422 = bp_unpack_enum (bp, omp_clause_schedule_kind,
423 OMP_CLAUSE_SCHEDULE_LAST);
424 break;
425 case OMP_CLAUSE_DEPEND:
426 OMP_CLAUSE_DEPEND_KIND (expr)
427 = bp_unpack_enum (bp, omp_clause_depend_kind, OMP_CLAUSE_DEPEND_LAST);
428 break;
429 case OMP_CLAUSE_MAP:
430 OMP_CLAUSE_MAP_KIND (expr)
431 = bp_unpack_enum (bp, omp_clause_map_kind, OMP_CLAUSE_MAP_LAST);
432 break;
433 case OMP_CLAUSE_PROC_BIND:
434 OMP_CLAUSE_PROC_BIND_KIND (expr)
435 = bp_unpack_enum (bp, omp_clause_proc_bind_kind,
436 OMP_CLAUSE_PROC_BIND_LAST);
437 break;
438 case OMP_CLAUSE_REDUCTION:
439 OMP_CLAUSE_REDUCTION_CODE (expr)
440 = bp_unpack_enum (bp, tree_code, MAX_TREE_CODES);
441 break;
442 default:
443 break;
444 }
445}
446
2541503d 447/* Unpack all the non-pointer fields in EXPR into a bit pack. */
448
449static void
ec180527 450unpack_value_fields (struct data_in *data_in, struct bitpack_d *bp, tree expr)
2541503d 451{
452 enum tree_code code;
453
454 code = TREE_CODE (expr);
455
456 /* Note that all these functions are highly sensitive to changes in
457 the types and sizes of each of the fields being packed. */
458 unpack_ts_base_value_fields (bp, expr);
459
42603940 460 if (CODE_CONTAINS_STRUCT (code, TS_INT_CST))
461 unpack_ts_int_cst_value_fields (bp, expr);
462
2541503d 463 if (CODE_CONTAINS_STRUCT (code, TS_REAL_CST))
464 unpack_ts_real_cst_value_fields (bp, expr);
465
466 if (CODE_CONTAINS_STRUCT (code, TS_FIXED_CST))
467 unpack_ts_fixed_cst_value_fields (bp, expr);
468
ec180527 469 if (CODE_CONTAINS_STRUCT (code, TS_DECL_MINIMAL))
470 DECL_SOURCE_LOCATION (expr) = stream_input_location (bp, data_in);
471
2541503d 472 if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
473 unpack_ts_decl_common_value_fields (bp, expr);
474
475 if (CODE_CONTAINS_STRUCT (code, TS_DECL_WRTL))
476 unpack_ts_decl_wrtl_value_fields (bp, expr);
477
478 if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS))
479 unpack_ts_decl_with_vis_value_fields (bp, expr);
480
481 if (CODE_CONTAINS_STRUCT (code, TS_FUNCTION_DECL))
482 unpack_ts_function_decl_value_fields (bp, expr);
483
484 if (CODE_CONTAINS_STRUCT (code, TS_TYPE_COMMON))
485 unpack_ts_type_common_value_fields (bp, expr);
486
ec180527 487 if (CODE_CONTAINS_STRUCT (code, TS_EXP))
488 SET_EXPR_LOCATION (expr, stream_input_location (bp, data_in));
489
2541503d 490 if (CODE_CONTAINS_STRUCT (code, TS_BLOCK))
ec180527 491 unpack_ts_block_value_fields (data_in, bp, expr);
2541503d 492
493 if (CODE_CONTAINS_STRUCT (code, TS_TRANSLATION_UNIT_DECL))
07de37ab 494 unpack_ts_translation_unit_decl_value_fields (data_in, bp, expr);
51136fa7 495
496 if (CODE_CONTAINS_STRUCT (code, TS_TARGET_OPTION))
f4c35256 497 gcc_unreachable ();
51136fa7 498
499 if (CODE_CONTAINS_STRUCT (code, TS_OPTIMIZATION))
500 unpack_ts_optimization (bp, expr);
e41fac10 501
502 if (CODE_CONTAINS_STRUCT (code, TS_BINFO))
503 {
504 unsigned HOST_WIDE_INT length = bp_unpack_var_len_unsigned (bp);
505 if (length > 0)
f1f41a6c 506 vec_safe_grow (BINFO_BASE_ACCESSES (expr), length);
e41fac10 507 }
508
509 if (CODE_CONTAINS_STRUCT (code, TS_CONSTRUCTOR))
510 {
511 unsigned HOST_WIDE_INT length = bp_unpack_var_len_unsigned (bp);
512 if (length > 0)
f1f41a6c 513 vec_safe_grow (CONSTRUCTOR_ELTS (expr), length);
e41fac10 514 }
fe3e3369 515
516 if (code == OMP_CLAUSE)
517 unpack_ts_omp_clause_value_fields (data_in, bp, expr);
515cf651 518}
519
520
521/* Read all the language-independent bitfield values for EXPR from IB.
522 Return the partially unpacked bitpack so the caller can unpack any other
523 bitfield values that the writer may have written. */
2541503d 524
515cf651 525struct bitpack_d
ec180527 526streamer_read_tree_bitfields (struct lto_input_block *ib,
527 struct data_in *data_in, tree expr)
515cf651 528{
529 enum tree_code code;
530 struct bitpack_d bp;
531
532 /* Read the bitpack of non-pointer values from IB. */
7f385784 533 bp = streamer_read_bitpack (ib);
515cf651 534
535 /* The first word in BP contains the code of the tree that we
536 are about to read. */
537 code = (enum tree_code) bp_unpack_value (&bp, 16);
538 lto_tag_check (lto_tree_code_to_tag (code),
539 lto_tree_code_to_tag (TREE_CODE (expr)));
540
541 /* Unpack all the value fields from BP. */
ec180527 542 unpack_value_fields (data_in, &bp, expr);
515cf651 543
544 return bp;
2541503d 545}
546
547
548/* Materialize a new tree from input block IB using descriptors in
549 DATA_IN. The code for the new tree should match TAG. Store in
550 *IX_P the index into the reader cache where the new tree is stored. */
551
515cf651 552tree
7f385784 553streamer_alloc_tree (struct lto_input_block *ib, struct data_in *data_in,
554 enum LTO_tags tag)
2541503d 555{
2541503d 556 enum tree_code code;
557 tree result;
558#ifdef LTO_STREAMER_DEBUG
3a4303e7 559 HOST_WIDE_INT orig_address_in_writer;
2541503d 560#endif
561
562 result = NULL_TREE;
563
564#ifdef LTO_STREAMER_DEBUG
565 /* Read the word representing the memory address for the tree
566 as it was written by the writer. This is useful when
567 debugging differences between the writer and reader. */
7f385784 568 orig_address_in_writer = streamer_read_hwi (ib);
2541503d 569 gcc_assert ((intptr_t) orig_address_in_writer == orig_address_in_writer);
570#endif
571
572 code = lto_tag_to_tree_code (tag);
573
574 /* We should never see an SSA_NAME tree. Only the version numbers of
575 SSA names are ever written out. See input_ssa_names. */
576 gcc_assert (code != SSA_NAME);
577
578 /* Instantiate a new tree using the header data. */
579 if (CODE_CONTAINS_STRUCT (code, TS_STRING))
7f385784 580 result = streamer_read_string_cst (data_in, ib);
2541503d 581 else if (CODE_CONTAINS_STRUCT (code, TS_IDENTIFIER))
582 result = input_identifier (data_in, ib);
583 else if (CODE_CONTAINS_STRUCT (code, TS_VEC))
584 {
7f385784 585 HOST_WIDE_INT len = streamer_read_hwi (ib);
2541503d 586 result = make_tree_vec (len);
587 }
fadf62f4 588 else if (CODE_CONTAINS_STRUCT (code, TS_VECTOR))
589 {
590 HOST_WIDE_INT len = streamer_read_hwi (ib);
c7a1d251 591 result = make_vector (len);
fadf62f4 592 }
2541503d 593 else if (CODE_CONTAINS_STRUCT (code, TS_BINFO))
594 {
7f385784 595 unsigned HOST_WIDE_INT len = streamer_read_uhwi (ib);
2541503d 596 result = make_tree_binfo (len);
597 }
e913b5cd 598 else if (CODE_CONTAINS_STRUCT (code, TS_INT_CST))
599 {
600 unsigned HOST_WIDE_INT len = streamer_read_uhwi (ib);
271e739a 601 unsigned HOST_WIDE_INT ext_len = streamer_read_uhwi (ib);
602 result = make_int_cst (len, ext_len);
e913b5cd 603 }
515cf651 604 else if (code == CALL_EXPR)
605 {
7f385784 606 unsigned HOST_WIDE_INT nargs = streamer_read_uhwi (ib);
515cf651 607 return build_vl_exp (CALL_EXPR, nargs + 3);
608 }
fe3e3369 609 else if (code == OMP_CLAUSE)
610 {
611 enum omp_clause_code subcode
612 = (enum omp_clause_code) streamer_read_uhwi (ib);
613 return build_omp_clause (UNKNOWN_LOCATION, subcode);
614 }
2541503d 615 else
616 {
515cf651 617 /* For all other nodes, materialize the tree with a raw
2541503d 618 make_node call. */
515cf651 619 result = make_node (code);
2541503d 620 }
621
622#ifdef LTO_STREAMER_DEBUG
623 /* Store the original address of the tree as seen by the writer
624 in RESULT's aux field. This is useful when debugging streaming
625 problems. This way, a debugging session can be started on
626 both writer and reader with a breakpoint using this address
627 value in both. */
628 lto_orig_address_map (result, (intptr_t) orig_address_in_writer);
629#endif
630
2541503d 631 return result;
632}
633
634
635/* Read all pointer fields in the TS_COMMON structure of EXPR from input
636 block IB. DATA_IN contains tables and descriptors for the
637 file being read. */
638
639
640static void
641lto_input_ts_common_tree_pointers (struct lto_input_block *ib,
642 struct data_in *data_in, tree expr)
643{
644 if (TREE_CODE (expr) != IDENTIFIER_NODE)
515cf651 645 TREE_TYPE (expr) = stream_read_tree (ib, data_in);
2541503d 646}
647
648
649/* Read all pointer fields in the TS_VECTOR structure of EXPR from input
650 block IB. DATA_IN contains tables and descriptors for the
651 file being read. */
652
653static void
654lto_input_ts_vector_tree_pointers (struct lto_input_block *ib,
655 struct data_in *data_in, tree expr)
656{
fadf62f4 657 unsigned i;
658 for (i = 0; i < VECTOR_CST_NELTS (expr); ++i)
659 VECTOR_CST_ELT (expr, i) = stream_read_tree (ib, data_in);
2541503d 660}
661
662
663/* Read all pointer fields in the TS_COMPLEX structure of EXPR from input
664 block IB. DATA_IN contains tables and descriptors for the
665 file being read. */
666
667static void
668lto_input_ts_complex_tree_pointers (struct lto_input_block *ib,
669 struct data_in *data_in, tree expr)
670{
515cf651 671 TREE_REALPART (expr) = stream_read_tree (ib, data_in);
672 TREE_IMAGPART (expr) = stream_read_tree (ib, data_in);
2541503d 673}
674
675
676/* Read all pointer fields in the TS_DECL_MINIMAL structure of EXPR
677 from input block IB. DATA_IN contains tables and descriptors for the
678 file being read. */
679
680static void
681lto_input_ts_decl_minimal_tree_pointers (struct lto_input_block *ib,
682 struct data_in *data_in, tree expr)
683{
515cf651 684 DECL_NAME (expr) = stream_read_tree (ib, data_in);
685 DECL_CONTEXT (expr) = stream_read_tree (ib, data_in);
2541503d 686}
687
688
689/* Read all pointer fields in the TS_DECL_COMMON structure of EXPR from
690 input block IB. DATA_IN contains tables and descriptors for the
691 file being read. */
692
693static void
694lto_input_ts_decl_common_tree_pointers (struct lto_input_block *ib,
695 struct data_in *data_in, tree expr)
696{
515cf651 697 DECL_SIZE (expr) = stream_read_tree (ib, data_in);
698 DECL_SIZE_UNIT (expr) = stream_read_tree (ib, data_in);
699 DECL_ATTRIBUTES (expr) = stream_read_tree (ib, data_in);
2541503d 700
701 /* Do not stream DECL_ABSTRACT_ORIGIN. We cannot handle debug information
702 for early inlining so drop it on the floor instead of ICEing in
703 dwarf2out.c. */
704
2541503d 705 if ((TREE_CODE (expr) == VAR_DECL
706 || TREE_CODE (expr) == PARM_DECL)
707 && DECL_HAS_VALUE_EXPR_P (expr))
515cf651 708 SET_DECL_VALUE_EXPR (expr, stream_read_tree (ib, data_in));
2541503d 709
710 if (TREE_CODE (expr) == VAR_DECL)
711 {
515cf651 712 tree dexpr = stream_read_tree (ib, data_in);
2541503d 713 if (dexpr)
714 SET_DECL_DEBUG_EXPR (expr, dexpr);
715 }
716}
717
718
719/* Read all pointer fields in the TS_DECL_NON_COMMON structure of
720 EXPR from input block IB. DATA_IN contains tables and descriptors for the
721 file being read. */
722
723static void
724lto_input_ts_decl_non_common_tree_pointers (struct lto_input_block *ib,
725 struct data_in *data_in, tree expr)
726{
4df870fd 727 if (TREE_CODE (expr) == TYPE_DECL)
6cd6787c 728 DECL_ORIGINAL_TYPE (expr) = stream_read_tree (ib, data_in);
2541503d 729}
730
731
732/* Read all pointer fields in the TS_DECL_WITH_VIS structure of EXPR
733 from input block IB. DATA_IN contains tables and descriptors for the
734 file being read. */
735
736static void
737lto_input_ts_decl_with_vis_tree_pointers (struct lto_input_block *ib,
738 struct data_in *data_in, tree expr)
739{
740 tree id;
741
515cf651 742 id = stream_read_tree (ib, data_in);
2541503d 743 if (id)
744 {
745 gcc_assert (TREE_CODE (id) == IDENTIFIER_NODE);
746 SET_DECL_ASSEMBLER_NAME (expr, id);
747 }
2541503d 748}
749
750
751/* Read all pointer fields in the TS_FIELD_DECL structure of EXPR from
752 input block IB. DATA_IN contains tables and descriptors for the
753 file being read. */
754
755static void
756lto_input_ts_field_decl_tree_pointers (struct lto_input_block *ib,
757 struct data_in *data_in, tree expr)
758{
515cf651 759 DECL_FIELD_OFFSET (expr) = stream_read_tree (ib, data_in);
760 DECL_BIT_FIELD_TYPE (expr) = stream_read_tree (ib, data_in);
8d8a34f9 761 DECL_BIT_FIELD_REPRESENTATIVE (expr) = stream_read_tree (ib, data_in);
515cf651 762 DECL_FIELD_BIT_OFFSET (expr) = stream_read_tree (ib, data_in);
763 DECL_FCONTEXT (expr) = stream_read_tree (ib, data_in);
2541503d 764}
765
766
767/* Read all pointer fields in the TS_FUNCTION_DECL structure of EXPR
768 from input block IB. DATA_IN contains tables and descriptors for the
769 file being read. */
770
771static void
772lto_input_ts_function_decl_tree_pointers (struct lto_input_block *ib,
773 struct data_in *data_in, tree expr)
774{
9c2e58d0 775 DECL_VINDEX (expr) = stream_read_tree (ib, data_in);
776 /* DECL_STRUCT_FUNCTION is loaded on demand by cgraph_get_body. */
515cf651 777 DECL_FUNCTION_PERSONALITY (expr) = stream_read_tree (ib, data_in);
f4c35256 778 /* DECL_FUNCTION_SPECIFIC_TARGET is regenerated from attributes. */
515cf651 779 DECL_FUNCTION_SPECIFIC_OPTIMIZATION (expr) = stream_read_tree (ib, data_in);
2541503d 780
781 /* If the file contains a function with an EH personality set,
782 then it was compiled with -fexceptions. In that case, initialize
783 the backend EH machinery. */
784 if (DECL_FUNCTION_PERSONALITY (expr))
785 lto_init_eh ();
786}
787
788
789/* Read all pointer fields in the TS_TYPE_COMMON structure of EXPR from
790 input block IB. DATA_IN contains tables and descriptors for the file
791 being read. */
792
793static void
794lto_input_ts_type_common_tree_pointers (struct lto_input_block *ib,
795 struct data_in *data_in, tree expr)
796{
c7be6601 797 TYPE_SIZE (expr) = stream_read_tree (ib, data_in);
798 TYPE_SIZE_UNIT (expr) = stream_read_tree (ib, data_in);
799 TYPE_ATTRIBUTES (expr) = stream_read_tree (ib, data_in);
515cf651 800 TYPE_NAME (expr) = stream_read_tree (ib, data_in);
2541503d 801 /* Do not stream TYPE_POINTER_TO or TYPE_REFERENCE_TO. They will be
802 reconstructed during fixup. */
803 /* Do not stream TYPE_NEXT_VARIANT, we reconstruct the variant lists
804 during fixup. */
c7be6601 805 TYPE_MAIN_VARIANT (expr) = stream_read_tree (ib, data_in);
806 TYPE_CONTEXT (expr) = stream_read_tree (ib, data_in);
2541503d 807 /* TYPE_CANONICAL gets re-computed during type merging. */
808 TYPE_CANONICAL (expr) = NULL_TREE;
c7be6601 809 TYPE_STUB_DECL (expr) = stream_read_tree (ib, data_in);
2541503d 810}
811
812/* Read all pointer fields in the TS_TYPE_NON_COMMON structure of EXPR
813 from input block IB. DATA_IN contains tables and descriptors for the
814 file being read. */
815
816static void
817lto_input_ts_type_non_common_tree_pointers (struct lto_input_block *ib,
818 struct data_in *data_in,
819 tree expr)
820{
c7be6601 821 if (TREE_CODE (expr) == ENUMERAL_TYPE)
822 TYPE_VALUES (expr) = stream_read_tree (ib, data_in);
823 else if (TREE_CODE (expr) == ARRAY_TYPE)
824 TYPE_DOMAIN (expr) = stream_read_tree (ib, data_in);
825 else if (RECORD_OR_UNION_TYPE_P (expr))
93784f3f 826 TYPE_FIELDS (expr) = streamer_read_chain (ib, data_in);
2541503d 827 else if (TREE_CODE (expr) == FUNCTION_TYPE
c7be6601 828 || TREE_CODE (expr) == METHOD_TYPE)
515cf651 829 TYPE_ARG_TYPES (expr) = stream_read_tree (ib, data_in);
c7be6601 830
831 if (!POINTER_TYPE_P (expr))
832 TYPE_MINVAL (expr) = stream_read_tree (ib, data_in);
833 TYPE_MAXVAL (expr) = stream_read_tree (ib, data_in);
834 if (RECORD_OR_UNION_TYPE_P (expr))
835 TYPE_BINFO (expr) = stream_read_tree (ib, data_in);
2541503d 836}
837
838
839/* Read all pointer fields in the TS_LIST structure of EXPR from input
840 block IB. DATA_IN contains tables and descriptors for the
841 file being read. */
842
843static void
844lto_input_ts_list_tree_pointers (struct lto_input_block *ib,
845 struct data_in *data_in, tree expr)
846{
515cf651 847 TREE_PURPOSE (expr) = stream_read_tree (ib, data_in);
848 TREE_VALUE (expr) = stream_read_tree (ib, data_in);
8ceff600 849 TREE_CHAIN (expr) = stream_read_tree (ib, data_in);
2541503d 850}
851
852
853/* Read all pointer fields in the TS_VEC structure of EXPR from input
854 block IB. DATA_IN contains tables and descriptors for the
855 file being read. */
856
857static void
858lto_input_ts_vec_tree_pointers (struct lto_input_block *ib,
859 struct data_in *data_in, tree expr)
860{
861 int i;
862
7f385784 863 /* Note that TREE_VEC_LENGTH was read by streamer_alloc_tree to
2541503d 864 instantiate EXPR. */
865 for (i = 0; i < TREE_VEC_LENGTH (expr); i++)
515cf651 866 TREE_VEC_ELT (expr, i) = stream_read_tree (ib, data_in);
2541503d 867}
868
869
870/* Read all pointer fields in the TS_EXP structure of EXPR from input
871 block IB. DATA_IN contains tables and descriptors for the
872 file being read. */
873
874
875static void
876lto_input_ts_exp_tree_pointers (struct lto_input_block *ib,
877 struct data_in *data_in, tree expr)
878{
e41fac10 879 int i;
2541503d 880
e41fac10 881 for (i = 0; i < TREE_OPERAND_LENGTH (expr); i++)
515cf651 882 TREE_OPERAND (expr, i) = stream_read_tree (ib, data_in);
2541503d 883
5169661d 884 TREE_SET_BLOCK (expr, stream_read_tree (ib, data_in));
2541503d 885}
886
887
888/* Read all pointer fields in the TS_BLOCK structure of EXPR from input
889 block IB. DATA_IN contains tables and descriptors for the
890 file being read. */
891
892static void
893lto_input_ts_block_tree_pointers (struct lto_input_block *ib,
894 struct data_in *data_in, tree expr)
895{
7f385784 896 BLOCK_VARS (expr) = streamer_read_chain (ib, data_in);
2541503d 897
515cf651 898 BLOCK_SUPERCONTEXT (expr) = stream_read_tree (ib, data_in);
2541503d 899
ae52f82e 900 /* Stream BLOCK_ABSTRACT_ORIGIN and BLOCK_SOURCE_LOCATION for
901 the limited cases we can handle - those that represent inlined
902 function scopes. For the rest them on the floor instead of ICEing in
2541503d 903 dwarf2out.c. */
ae52f82e 904 BLOCK_ABSTRACT_ORIGIN (expr) = stream_read_tree (ib, data_in);
ae52f82e 905 /* Do not stream BLOCK_NONLOCALIZED_VARS. We cannot handle debug information
906 for early inlined BLOCKs so drop it on the floor instead of ICEing in
907 dwarf2out.c. */
908
909 /* BLOCK_FRAGMENT_ORIGIN and BLOCK_FRAGMENT_CHAIN is not live at LTO
910 streaming time. */
2541503d 911
912 /* We re-compute BLOCK_SUBBLOCKS of our parent here instead
913 of streaming it. For non-BLOCK BLOCK_SUPERCONTEXTs we still
914 stream the child relationship explicitly. */
915 if (BLOCK_SUPERCONTEXT (expr)
916 && TREE_CODE (BLOCK_SUPERCONTEXT (expr)) == BLOCK)
917 {
918 BLOCK_CHAIN (expr) = BLOCK_SUBBLOCKS (BLOCK_SUPERCONTEXT (expr));
919 BLOCK_SUBBLOCKS (BLOCK_SUPERCONTEXT (expr)) = expr;
920 }
921
922 /* The global block is rooted at the TU decl. Hook it here to
923 avoid the need to stream in this block during WPA time. */
924 else if (BLOCK_SUPERCONTEXT (expr)
925 && TREE_CODE (BLOCK_SUPERCONTEXT (expr)) == TRANSLATION_UNIT_DECL)
926 DECL_INITIAL (BLOCK_SUPERCONTEXT (expr)) = expr;
927
928 /* The function-level block is connected at the time we read in
929 function bodies for the same reason. */
930}
931
932
933/* Read all pointer fields in the TS_BINFO structure of EXPR from input
934 block IB. DATA_IN contains tables and descriptors for the
935 file being read. */
936
937static void
938lto_input_ts_binfo_tree_pointers (struct lto_input_block *ib,
939 struct data_in *data_in, tree expr)
940{
e41fac10 941 unsigned i;
2541503d 942 tree t;
943
944 /* Note that the number of slots in EXPR was read in
7f385784 945 streamer_alloc_tree when instantiating EXPR. However, the
f1f41a6c 946 vector is empty so we cannot rely on vec::length to know how many
2541503d 947 elements to read. So, this list is emitted as a 0-terminated
948 list on the writer side. */
949 do
950 {
515cf651 951 t = stream_read_tree (ib, data_in);
2541503d 952 if (t)
f1f41a6c 953 BINFO_BASE_BINFOS (expr)->quick_push (t);
2541503d 954 }
955 while (t);
956
515cf651 957 BINFO_OFFSET (expr) = stream_read_tree (ib, data_in);
958 BINFO_VTABLE (expr) = stream_read_tree (ib, data_in);
515cf651 959 BINFO_VPTR_FIELD (expr) = stream_read_tree (ib, data_in);
2541503d 960
e41fac10 961 /* The vector of BINFO_BASE_ACCESSES is pre-allocated during
962 unpacking the bitfield section. */
f1f41a6c 963 for (i = 0; i < vec_safe_length (BINFO_BASE_ACCESSES (expr)); i++)
2541503d 964 {
e41fac10 965 tree a = stream_read_tree (ib, data_in);
f1f41a6c 966 (*BINFO_BASE_ACCESSES (expr))[i] = a;
2541503d 967 }
c8bc3818 968 /* Do not walk BINFO_INHERITANCE_CHAIN, BINFO_SUBVTT_INDEX
969 and BINFO_VPTR_INDEX; these are used by C++ FE only. */
2541503d 970}
971
972
973/* Read all pointer fields in the TS_CONSTRUCTOR structure of EXPR from
974 input block IB. DATA_IN contains tables and descriptors for the
975 file being read. */
976
977static void
978lto_input_ts_constructor_tree_pointers (struct lto_input_block *ib,
979 struct data_in *data_in, tree expr)
980{
e41fac10 981 unsigned i;
2541503d 982
e41fac10 983 for (i = 0; i < CONSTRUCTOR_NELTS (expr); i++)
2541503d 984 {
e41fac10 985 constructor_elt e;
986 e.index = stream_read_tree (ib, data_in);
987 e.value = stream_read_tree (ib, data_in);
f1f41a6c 988 (*CONSTRUCTOR_ELTS (expr))[i] = e;
2541503d 989 }
990}
991
992
fe3e3369 993/* Read all pointer fields in the TS_OMP_CLAUSE structure of EXPR from
994 input block IB. DATA_IN contains tables and descriptors for the
995 file being read. */
996
997static void
998lto_input_ts_omp_clause_tree_pointers (struct lto_input_block *ib,
999 struct data_in *data_in, tree expr)
1000{
1001 int i;
1002
1003 for (i = 0; i < omp_clause_num_ops[OMP_CLAUSE_CODE (expr)]; i++)
1004 OMP_CLAUSE_OPERAND (expr, i) = stream_read_tree (ib, data_in);
1005 OMP_CLAUSE_CHAIN (expr) = stream_read_tree (ib, data_in);
1006}
1007
1008
515cf651 1009/* Read all pointer fields in EXPR from input block IB. DATA_IN
1010 contains tables and descriptors for the file being read. */
2541503d 1011
515cf651 1012void
7f385784 1013streamer_read_tree_body (struct lto_input_block *ib, struct data_in *data_in,
2541503d 1014 tree expr)
1015{
1016 enum tree_code code;
1017
1018 code = TREE_CODE (expr);
1019
1020 if (CODE_CONTAINS_STRUCT (code, TS_TYPED))
1021 lto_input_ts_common_tree_pointers (ib, data_in, expr);
1022
1023 if (CODE_CONTAINS_STRUCT (code, TS_VECTOR))
1024 lto_input_ts_vector_tree_pointers (ib, data_in, expr);
1025
1026 if (CODE_CONTAINS_STRUCT (code, TS_COMPLEX))
1027 lto_input_ts_complex_tree_pointers (ib, data_in, expr);
1028
1029 if (CODE_CONTAINS_STRUCT (code, TS_DECL_MINIMAL))
1030 lto_input_ts_decl_minimal_tree_pointers (ib, data_in, expr);
1031
1032 if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
1033 lto_input_ts_decl_common_tree_pointers (ib, data_in, expr);
1034
1035 if (CODE_CONTAINS_STRUCT (code, TS_DECL_NON_COMMON))
1036 lto_input_ts_decl_non_common_tree_pointers (ib, data_in, expr);
1037
1038 if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS))
1039 lto_input_ts_decl_with_vis_tree_pointers (ib, data_in, expr);
1040
1041 if (CODE_CONTAINS_STRUCT (code, TS_FIELD_DECL))
1042 lto_input_ts_field_decl_tree_pointers (ib, data_in, expr);
1043
1044 if (CODE_CONTAINS_STRUCT (code, TS_FUNCTION_DECL))
1045 lto_input_ts_function_decl_tree_pointers (ib, data_in, expr);
1046
1047 if (CODE_CONTAINS_STRUCT (code, TS_TYPE_COMMON))
1048 lto_input_ts_type_common_tree_pointers (ib, data_in, expr);
1049
1050 if (CODE_CONTAINS_STRUCT (code, TS_TYPE_NON_COMMON))
1051 lto_input_ts_type_non_common_tree_pointers (ib, data_in, expr);
1052
1053 if (CODE_CONTAINS_STRUCT (code, TS_LIST))
1054 lto_input_ts_list_tree_pointers (ib, data_in, expr);
1055
1056 if (CODE_CONTAINS_STRUCT (code, TS_VEC))
1057 lto_input_ts_vec_tree_pointers (ib, data_in, expr);
1058
1059 if (CODE_CONTAINS_STRUCT (code, TS_EXP))
1060 lto_input_ts_exp_tree_pointers (ib, data_in, expr);
1061
1062 if (CODE_CONTAINS_STRUCT (code, TS_BLOCK))
1063 lto_input_ts_block_tree_pointers (ib, data_in, expr);
1064
1065 if (CODE_CONTAINS_STRUCT (code, TS_BINFO))
1066 lto_input_ts_binfo_tree_pointers (ib, data_in, expr);
1067
1068 if (CODE_CONTAINS_STRUCT (code, TS_CONSTRUCTOR))
1069 lto_input_ts_constructor_tree_pointers (ib, data_in, expr);
fe3e3369 1070
1071 if (code == OMP_CLAUSE)
1072 lto_input_ts_omp_clause_tree_pointers (ib, data_in, expr);
2541503d 1073}
1074
1075
2541503d 1076/* Read an index IX from input block IB and return the tree node at
1077 DATA_IN->FILE_DATA->GLOBALS_INDEX[IX]. */
1078
515cf651 1079tree
7f385784 1080streamer_get_pickled_tree (struct lto_input_block *ib, struct data_in *data_in)
2541503d 1081{
1082 unsigned HOST_WIDE_INT ix;
1083 tree result;
1084 enum LTO_tags expected_tag;
1085
7f385784 1086 ix = streamer_read_uhwi (ib);
1087 expected_tag = streamer_read_enum (ib, LTO_tags, LTO_NUM_TAGS);
2541503d 1088
8ceff600 1089 result = streamer_tree_cache_get_tree (data_in->reader_cache, ix);
2541503d 1090 gcc_assert (result
1091 && TREE_CODE (result) == lto_tag_to_tree_code (expected_tag));
1092
1093 return result;
1094}
1095
1096
1097/* Read a code and class from input block IB and return the
515cf651 1098 corresponding builtin. DATA_IN is as in stream_read_tree. */
2541503d 1099
515cf651 1100tree
7f385784 1101streamer_get_builtin_tree (struct lto_input_block *ib, struct data_in *data_in)
2541503d 1102{
1103 enum built_in_class fclass;
1104 enum built_in_function fcode;
1105 const char *asmname;
1106 tree result;
1107
7f385784 1108 fclass = streamer_read_enum (ib, built_in_class, BUILT_IN_LAST);
2541503d 1109 gcc_assert (fclass == BUILT_IN_NORMAL || fclass == BUILT_IN_MD);
1110
7f385784 1111 fcode = (enum built_in_function) streamer_read_uhwi (ib);
2541503d 1112
1113 if (fclass == BUILT_IN_NORMAL)
1114 {
1115 if (fcode >= END_BUILTINS)
1116 fatal_error ("machine independent builtin code out of range");
b9a16870 1117 result = builtin_decl_explicit (fcode);
2541503d 1118 gcc_assert (result);
1119 }
1120 else if (fclass == BUILT_IN_MD)
1121 {
1122 result = targetm.builtin_decl (fcode, true);
1123 if (!result || result == error_mark_node)
1124 fatal_error ("target specific builtin not available");
1125 }
1126 else
1127 gcc_unreachable ();
1128
7f385784 1129 asmname = streamer_read_string (data_in, ib);
2541503d 1130 if (asmname)
1131 set_builtin_user_assembler_name (result, asmname);
1132
8ceff600 1133 streamer_tree_cache_append (data_in->reader_cache, result, 0);
2541503d 1134
1135 return result;
1136}
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