PR c++/86728 - C variadic generic lambda.
[official-gcc.git] / gcc / tree-streamer-in.c
blob43cd9a4cad1323f1a208883302c4bfbd20755953
1 /* Routines for reading trees from a file stream.
3 Copyright (C) 2011-2018 Free Software Foundation, Inc.
4 Contributed by Diego Novillo <dnovillo@google.com>
6 This file is part of GCC.
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.
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.
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/>. */
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 "stringpool.h"
30 #include "tree-streamer.h"
31 #include "cgraph.h"
32 #include "builtins.h"
33 #include "gomp-constants.h"
34 #include "stringpool.h"
35 #include "attribs.h"
36 #include "asan.h"
37 #include "opts.h"
40 /* Read a STRING_CST from the string table in DATA_IN using input
41 block IB. */
43 tree
44 streamer_read_string_cst (struct data_in *data_in, struct lto_input_block *ib)
46 unsigned int len;
47 const char * ptr;
49 ptr = streamer_read_indexed_string (data_in, ib, &len);
50 if (!ptr)
51 return NULL;
52 return build_string (len, ptr);
56 /* Read an IDENTIFIER from the string table in DATA_IN using input
57 block IB. */
59 static tree
60 input_identifier (struct data_in *data_in, struct lto_input_block *ib)
62 unsigned int len;
63 const char *ptr;
65 ptr = streamer_read_indexed_string (data_in, ib, &len);
66 if (!ptr)
67 return NULL;
68 return get_identifier_with_length (ptr, len);
72 /* Read a chain of tree nodes from input block IB. DATA_IN contains
73 tables and descriptors for the file being read. */
75 tree
76 streamer_read_chain (struct lto_input_block *ib, struct data_in *data_in)
78 tree first, prev, curr;
80 /* The chain is written as NULL terminated list of trees. */
81 first = prev = NULL_TREE;
84 curr = stream_read_tree (ib, data_in);
85 if (prev)
86 TREE_CHAIN (prev) = curr;
87 else
88 first = curr;
90 prev = curr;
92 while (curr);
94 return first;
98 /* Unpack all the non-pointer fields of the TS_BASE structure of
99 expression EXPR from bitpack BP. */
101 static inline void
102 unpack_ts_base_value_fields (struct bitpack_d *bp, tree expr)
104 /* Note that the code for EXPR has already been unpacked to create EXPR in
105 streamer_alloc_tree. */
106 if (!TYPE_P (expr))
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);
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);
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))
123 DECL_UNSIGNED (expr) = (unsigned) bp_unpack_value (bp, 1);
124 DECL_NAMELESS (expr) = (unsigned) bp_unpack_value (bp, 1);
126 else if (TYPE_P (expr))
127 TYPE_UNSIGNED (expr) = (unsigned) bp_unpack_value (bp, 1);
128 else
129 bp_unpack_value (bp, 1);
130 TREE_ASM_WRITTEN (expr) = (unsigned) bp_unpack_value (bp, 1);
131 if (TYPE_P (expr))
132 TYPE_ARTIFICIAL (expr) = (unsigned) bp_unpack_value (bp, 1);
133 else
134 TREE_NO_WARNING (expr) = (unsigned) bp_unpack_value (bp, 1);
135 TREE_NOTHROW (expr) = (unsigned) bp_unpack_value (bp, 1);
136 TREE_STATIC (expr) = (unsigned) bp_unpack_value (bp, 1);
137 if (TREE_CODE (expr) != TREE_BINFO)
138 TREE_PRIVATE (expr) = (unsigned) bp_unpack_value (bp, 1);
139 else
140 bp_unpack_value (bp, 1);
141 TREE_PROTECTED (expr) = (unsigned) bp_unpack_value (bp, 1);
142 TREE_DEPRECATED (expr) = (unsigned) bp_unpack_value (bp, 1);
143 if (TYPE_P (expr))
145 if (AGGREGATE_TYPE_P (expr))
146 TYPE_REVERSE_STORAGE_ORDER (expr) = (unsigned) bp_unpack_value (bp, 1);
147 else
148 TYPE_SATURATING (expr) = (unsigned) bp_unpack_value (bp, 1);
149 TYPE_ADDR_SPACE (expr) = (unsigned) bp_unpack_value (bp, 8);
151 else if (TREE_CODE (expr) == BIT_FIELD_REF || TREE_CODE (expr) == MEM_REF)
153 REF_REVERSE_STORAGE_ORDER (expr) = (unsigned) bp_unpack_value (bp, 1);
154 bp_unpack_value (bp, 8);
156 else if (TREE_CODE (expr) == SSA_NAME)
158 SSA_NAME_IS_DEFAULT_DEF (expr) = (unsigned) bp_unpack_value (bp, 1);
159 bp_unpack_value (bp, 8);
161 else
162 bp_unpack_value (bp, 9);
166 /* Unpack all the non-pointer fields of the TS_INT_CST structure of
167 expression EXPR from bitpack BP. */
169 static void
170 unpack_ts_int_cst_value_fields (struct bitpack_d *bp, tree expr)
172 int i;
173 for (i = 0; i < TREE_INT_CST_EXT_NUNITS (expr); i++)
174 TREE_INT_CST_ELT (expr, i) = bp_unpack_var_len_int (bp);
178 /* Unpack all the non-pointer fields of the TS_REAL_CST structure of
179 expression EXPR from bitpack BP. */
181 static void
182 unpack_ts_real_cst_value_fields (struct bitpack_d *bp, tree expr)
184 unsigned i;
185 REAL_VALUE_TYPE r;
186 REAL_VALUE_TYPE *rp;
188 /* Clear all bits of the real value type so that we can later do
189 bitwise comparisons to see if two values are the same. */
190 memset (&r, 0, sizeof r);
191 r.cl = (unsigned) bp_unpack_value (bp, 2);
192 r.decimal = (unsigned) bp_unpack_value (bp, 1);
193 r.sign = (unsigned) bp_unpack_value (bp, 1);
194 r.signalling = (unsigned) bp_unpack_value (bp, 1);
195 r.canonical = (unsigned) bp_unpack_value (bp, 1);
196 r.uexp = (unsigned) bp_unpack_value (bp, EXP_BITS);
197 for (i = 0; i < SIGSZ; i++)
198 r.sig[i] = (unsigned long) bp_unpack_value (bp, HOST_BITS_PER_LONG);
200 rp = ggc_alloc<real_value> ();
201 memcpy (rp, &r, sizeof (REAL_VALUE_TYPE));
202 TREE_REAL_CST_PTR (expr) = rp;
206 /* Unpack all the non-pointer fields of the TS_FIXED_CST structure of
207 expression EXPR from bitpack BP. */
209 static void
210 unpack_ts_fixed_cst_value_fields (struct bitpack_d *bp, tree expr)
212 FIXED_VALUE_TYPE *fp = ggc_alloc<fixed_value> ();
213 fp->mode = as_a <scalar_mode> (bp_unpack_machine_mode (bp));
214 fp->data.low = bp_unpack_var_len_int (bp);
215 fp->data.high = bp_unpack_var_len_int (bp);
216 TREE_FIXED_CST_PTR (expr) = fp;
219 /* Unpack all the non-pointer fields of the TS_DECL_COMMON structure
220 of expression EXPR from bitpack BP. */
222 static void
223 unpack_ts_decl_common_value_fields (struct bitpack_d *bp, tree expr)
225 SET_DECL_MODE (expr, bp_unpack_machine_mode (bp));
226 DECL_NONLOCAL (expr) = (unsigned) bp_unpack_value (bp, 1);
227 DECL_VIRTUAL_P (expr) = (unsigned) bp_unpack_value (bp, 1);
228 DECL_IGNORED_P (expr) = (unsigned) bp_unpack_value (bp, 1);
229 DECL_ABSTRACT_P (expr) = (unsigned) bp_unpack_value (bp, 1);
230 DECL_ARTIFICIAL (expr) = (unsigned) bp_unpack_value (bp, 1);
231 DECL_USER_ALIGN (expr) = (unsigned) bp_unpack_value (bp, 1);
232 DECL_PRESERVE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
233 DECL_EXTERNAL (expr) = (unsigned) bp_unpack_value (bp, 1);
234 DECL_GIMPLE_REG_P (expr) = (unsigned) bp_unpack_value (bp, 1);
235 SET_DECL_ALIGN (expr, (unsigned) bp_unpack_var_len_unsigned (bp));
236 #ifdef ACCEL_COMPILER
237 if (DECL_ALIGN (expr) > targetm.absolute_biggest_alignment)
238 SET_DECL_ALIGN (expr, targetm.absolute_biggest_alignment);
239 #endif
240 if (TREE_CODE (expr) == LABEL_DECL)
242 EH_LANDING_PAD_NR (expr) = (int) bp_unpack_var_len_unsigned (bp);
244 /* Always assume an initial value of -1 for LABEL_DECL_UID to
245 force gimple_set_bb to recreate label_to_block_map. */
246 LABEL_DECL_UID (expr) = -1;
249 if (TREE_CODE (expr) == FIELD_DECL)
251 DECL_PACKED (expr) = (unsigned) bp_unpack_value (bp, 1);
252 DECL_NONADDRESSABLE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
253 DECL_PADDING_P (expr) = (unsigned) bp_unpack_value (bp, 1);
254 expr->decl_common.off_align = bp_unpack_value (bp, 8);
257 if (VAR_P (expr))
259 DECL_HAS_DEBUG_EXPR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
260 DECL_NONLOCAL_FRAME (expr) = (unsigned) bp_unpack_value (bp, 1);
263 if (TREE_CODE (expr) == RESULT_DECL
264 || TREE_CODE (expr) == PARM_DECL
265 || VAR_P (expr))
267 DECL_BY_REFERENCE (expr) = (unsigned) bp_unpack_value (bp, 1);
268 if (VAR_P (expr) || TREE_CODE (expr) == PARM_DECL)
269 DECL_HAS_VALUE_EXPR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
274 /* Unpack all the non-pointer fields of the TS_DECL_WRTL structure
275 of expression EXPR from bitpack BP. */
277 static void
278 unpack_ts_decl_wrtl_value_fields (struct bitpack_d *bp, tree expr)
280 DECL_REGISTER (expr) = (unsigned) bp_unpack_value (bp, 1);
284 /* Unpack all the non-pointer fields of the TS_DECL_WITH_VIS structure
285 of expression EXPR from bitpack BP. */
287 static void
288 unpack_ts_decl_with_vis_value_fields (struct bitpack_d *bp, tree expr)
290 DECL_COMMON (expr) = (unsigned) bp_unpack_value (bp, 1);
291 DECL_DLLIMPORT_P (expr) = (unsigned) bp_unpack_value (bp, 1);
292 DECL_WEAK (expr) = (unsigned) bp_unpack_value (bp, 1);
293 DECL_SEEN_IN_BIND_EXPR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
294 DECL_COMDAT (expr) = (unsigned) bp_unpack_value (bp, 1);
295 DECL_VISIBILITY (expr) = (enum symbol_visibility) bp_unpack_value (bp, 2);
296 DECL_VISIBILITY_SPECIFIED (expr) = (unsigned) bp_unpack_value (bp, 1);
298 if (VAR_P (expr))
300 DECL_HARD_REGISTER (expr) = (unsigned) bp_unpack_value (bp, 1);
301 DECL_IN_CONSTANT_POOL (expr) = (unsigned) bp_unpack_value (bp, 1);
304 if (TREE_CODE (expr) == FUNCTION_DECL)
306 DECL_FINAL_P (expr) = (unsigned) bp_unpack_value (bp, 1);
307 DECL_CXX_CONSTRUCTOR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
308 DECL_CXX_DESTRUCTOR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
313 /* Unpack all the non-pointer fields of the TS_FUNCTION_DECL structure
314 of expression EXPR from bitpack BP. */
316 static void
317 unpack_ts_function_decl_value_fields (struct bitpack_d *bp, tree expr)
319 DECL_BUILT_IN_CLASS (expr) = bp_unpack_enum (bp, built_in_class,
320 BUILT_IN_LAST);
321 DECL_STATIC_CONSTRUCTOR (expr) = (unsigned) bp_unpack_value (bp, 1);
322 DECL_STATIC_DESTRUCTOR (expr) = (unsigned) bp_unpack_value (bp, 1);
323 DECL_UNINLINABLE (expr) = (unsigned) bp_unpack_value (bp, 1);
324 DECL_POSSIBLY_INLINED (expr) = (unsigned) bp_unpack_value (bp, 1);
325 DECL_IS_NOVOPS (expr) = (unsigned) bp_unpack_value (bp, 1);
326 DECL_IS_RETURNS_TWICE (expr) = (unsigned) bp_unpack_value (bp, 1);
327 DECL_IS_MALLOC (expr) = (unsigned) bp_unpack_value (bp, 1);
328 DECL_IS_OPERATOR_NEW (expr) = (unsigned) bp_unpack_value (bp, 1);
329 DECL_DECLARED_INLINE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
330 DECL_STATIC_CHAIN (expr) = (unsigned) bp_unpack_value (bp, 1);
331 DECL_NO_INLINE_WARNING_P (expr) = (unsigned) bp_unpack_value (bp, 1);
332 DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT (expr)
333 = (unsigned) bp_unpack_value (bp, 1);
334 DECL_NO_LIMIT_STACK (expr) = (unsigned) bp_unpack_value (bp, 1);
335 DECL_DISREGARD_INLINE_LIMITS (expr) = (unsigned) bp_unpack_value (bp, 1);
336 DECL_PURE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
337 DECL_LOOPING_CONST_OR_PURE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
338 if (DECL_BUILT_IN_CLASS (expr) != NOT_BUILT_IN)
340 DECL_FUNCTION_CODE (expr) = (enum built_in_function) bp_unpack_value (bp,
341 12);
342 if (DECL_BUILT_IN_CLASS (expr) == BUILT_IN_NORMAL
343 && DECL_FUNCTION_CODE (expr) >= END_BUILTINS)
344 fatal_error (input_location,
345 "machine independent builtin code out of range");
346 else if (DECL_BUILT_IN_CLASS (expr) == BUILT_IN_MD)
348 tree result = targetm.builtin_decl (DECL_FUNCTION_CODE (expr), true);
349 if (!result || result == error_mark_node)
350 fatal_error (input_location,
351 "target specific builtin not available");
357 /* Unpack all the non-pointer fields of the TS_TYPE_COMMON structure
358 of expression EXPR from bitpack BP. */
360 static void
361 unpack_ts_type_common_value_fields (struct bitpack_d *bp, tree expr)
363 machine_mode mode;
365 mode = bp_unpack_machine_mode (bp);
366 SET_TYPE_MODE (expr, mode);
367 TYPE_STRING_FLAG (expr) = (unsigned) bp_unpack_value (bp, 1);
368 /* TYPE_NO_FORCE_BLK is private to stor-layout and need
369 no streaming. */
370 TYPE_NEEDS_CONSTRUCTING (expr) = (unsigned) bp_unpack_value (bp, 1);
371 TYPE_PACKED (expr) = (unsigned) bp_unpack_value (bp, 1);
372 TYPE_RESTRICT (expr) = (unsigned) bp_unpack_value (bp, 1);
373 TYPE_USER_ALIGN (expr) = (unsigned) bp_unpack_value (bp, 1);
374 TYPE_READONLY (expr) = (unsigned) bp_unpack_value (bp, 1);
375 if (RECORD_OR_UNION_TYPE_P (expr))
377 TYPE_TRANSPARENT_AGGR (expr) = (unsigned) bp_unpack_value (bp, 1);
378 TYPE_FINAL_P (expr) = (unsigned) bp_unpack_value (bp, 1);
380 else if (TREE_CODE (expr) == ARRAY_TYPE)
381 TYPE_NONALIASED_COMPONENT (expr) = (unsigned) bp_unpack_value (bp, 1);
382 if (AGGREGATE_TYPE_P (expr))
383 TYPE_TYPELESS_STORAGE (expr) = (unsigned) bp_unpack_value (bp, 1);
384 TYPE_EMPTY_P (expr) = (unsigned) bp_unpack_value (bp, 1);
385 TYPE_PRECISION (expr) = bp_unpack_var_len_unsigned (bp);
386 SET_TYPE_ALIGN (expr, bp_unpack_var_len_unsigned (bp));
387 #ifdef ACCEL_COMPILER
388 if (TYPE_ALIGN (expr) > targetm.absolute_biggest_alignment)
389 SET_TYPE_ALIGN (expr, targetm.absolute_biggest_alignment);
390 #endif
394 /* Unpack all the non-pointer fields of the TS_BLOCK structure
395 of expression EXPR from bitpack BP. */
397 static void
398 unpack_ts_block_value_fields (struct data_in *data_in,
399 struct bitpack_d *bp, tree expr)
401 BLOCK_ABSTRACT (expr) = (unsigned) bp_unpack_value (bp, 1);
402 /* BLOCK_NUMBER is recomputed. */
403 stream_input_location (&BLOCK_SOURCE_LOCATION (expr), bp, data_in);
406 /* Unpack all the non-pointer fields of the TS_TRANSLATION_UNIT_DECL
407 structure of expression EXPR from bitpack BP. */
409 static void
410 unpack_ts_translation_unit_decl_value_fields (struct data_in *data_in,
411 struct bitpack_d *bp, tree expr)
413 TRANSLATION_UNIT_LANGUAGE (expr) = xstrdup (bp_unpack_string (data_in, bp));
414 vec_safe_push (all_translation_units, expr);
418 /* Unpack all the non-pointer fields of the TS_OMP_CLAUSE
419 structure of expression EXPR from bitpack BP. */
421 static void
422 unpack_ts_omp_clause_value_fields (struct data_in *data_in,
423 struct bitpack_d *bp, tree expr)
425 stream_input_location (&OMP_CLAUSE_LOCATION (expr), bp, data_in);
426 switch (OMP_CLAUSE_CODE (expr))
428 case OMP_CLAUSE_DEFAULT:
429 OMP_CLAUSE_DEFAULT_KIND (expr)
430 = bp_unpack_enum (bp, omp_clause_default_kind,
431 OMP_CLAUSE_DEFAULT_LAST);
432 break;
433 case OMP_CLAUSE_SCHEDULE:
434 OMP_CLAUSE_SCHEDULE_KIND (expr)
435 = bp_unpack_enum (bp, omp_clause_schedule_kind,
436 OMP_CLAUSE_SCHEDULE_LAST);
437 break;
438 case OMP_CLAUSE_DEPEND:
439 OMP_CLAUSE_DEPEND_KIND (expr)
440 = bp_unpack_enum (bp, omp_clause_depend_kind, OMP_CLAUSE_DEPEND_LAST);
441 break;
442 case OMP_CLAUSE_MAP:
443 OMP_CLAUSE_SET_MAP_KIND (expr, bp_unpack_enum (bp, gomp_map_kind,
444 GOMP_MAP_LAST));
445 break;
446 case OMP_CLAUSE_PROC_BIND:
447 OMP_CLAUSE_PROC_BIND_KIND (expr)
448 = bp_unpack_enum (bp, omp_clause_proc_bind_kind,
449 OMP_CLAUSE_PROC_BIND_LAST);
450 break;
451 case OMP_CLAUSE_REDUCTION:
452 OMP_CLAUSE_REDUCTION_CODE (expr)
453 = bp_unpack_enum (bp, tree_code, MAX_TREE_CODES);
454 break;
455 default:
456 break;
461 /* Read all the language-independent bitfield values for EXPR from IB.
462 Return the partially unpacked bitpack so the caller can unpack any other
463 bitfield values that the writer may have written. */
465 void
466 streamer_read_tree_bitfields (struct lto_input_block *ib,
467 struct data_in *data_in, tree expr)
469 enum tree_code code;
470 struct bitpack_d bp;
472 /* Read the bitpack of non-pointer values from IB. */
473 bp = streamer_read_bitpack (ib);
475 /* The first word in BP contains the code of the tree that we
476 are about to read. */
477 code = (enum tree_code) bp_unpack_value (&bp, 16);
478 lto_tag_check (lto_tree_code_to_tag (code),
479 lto_tree_code_to_tag (TREE_CODE (expr)));
481 /* Note that all these functions are highly sensitive to changes in
482 the types and sizes of each of the fields being packed. */
483 unpack_ts_base_value_fields (&bp, expr);
485 if (CODE_CONTAINS_STRUCT (code, TS_INT_CST))
486 unpack_ts_int_cst_value_fields (&bp, expr);
488 if (CODE_CONTAINS_STRUCT (code, TS_REAL_CST))
489 unpack_ts_real_cst_value_fields (&bp, expr);
491 if (CODE_CONTAINS_STRUCT (code, TS_FIXED_CST))
492 unpack_ts_fixed_cst_value_fields (&bp, expr);
494 if (CODE_CONTAINS_STRUCT (code, TS_DECL_MINIMAL))
495 stream_input_location (&DECL_SOURCE_LOCATION (expr), &bp, data_in);
497 if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
498 unpack_ts_decl_common_value_fields (&bp, expr);
500 if (CODE_CONTAINS_STRUCT (code, TS_DECL_WRTL))
501 unpack_ts_decl_wrtl_value_fields (&bp, expr);
503 if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS))
504 unpack_ts_decl_with_vis_value_fields (&bp, expr);
506 if (CODE_CONTAINS_STRUCT (code, TS_FUNCTION_DECL))
507 unpack_ts_function_decl_value_fields (&bp, expr);
509 if (CODE_CONTAINS_STRUCT (code, TS_TYPE_COMMON))
510 unpack_ts_type_common_value_fields (&bp, expr);
512 if (CODE_CONTAINS_STRUCT (code, TS_EXP))
514 stream_input_location (&EXPR_CHECK (expr)->exp.locus, &bp, data_in);
515 if (code == MEM_REF
516 || code == TARGET_MEM_REF)
518 MR_DEPENDENCE_CLIQUE (expr)
519 = (unsigned)bp_unpack_value (&bp, sizeof (short) * 8);
520 if (MR_DEPENDENCE_CLIQUE (expr) != 0)
521 MR_DEPENDENCE_BASE (expr)
522 = (unsigned)bp_unpack_value (&bp, sizeof (short) * 8);
526 if (CODE_CONTAINS_STRUCT (code, TS_BLOCK))
527 unpack_ts_block_value_fields (data_in, &bp, expr);
529 if (CODE_CONTAINS_STRUCT (code, TS_TRANSLATION_UNIT_DECL))
530 unpack_ts_translation_unit_decl_value_fields (data_in, &bp, expr);
532 if (CODE_CONTAINS_STRUCT (code, TS_OPTIMIZATION))
533 cl_optimization_stream_in (data_in, &bp, TREE_OPTIMIZATION (expr));
535 if (CODE_CONTAINS_STRUCT (code, TS_CONSTRUCTOR))
537 unsigned HOST_WIDE_INT length = bp_unpack_var_len_unsigned (&bp);
538 if (length > 0)
539 vec_safe_grow (CONSTRUCTOR_ELTS (expr), length);
542 #ifndef ACCEL_COMPILER
543 if (CODE_CONTAINS_STRUCT (code, TS_TARGET_OPTION))
545 cl_target_option_stream_in (data_in, &bp, TREE_TARGET_OPTION (expr));
546 if (targetm.target_option.post_stream_in)
547 targetm.target_option.post_stream_in (TREE_TARGET_OPTION (expr));
549 #endif
551 if (code == OMP_CLAUSE)
552 unpack_ts_omp_clause_value_fields (data_in, &bp, expr);
556 /* Materialize a new tree from input block IB using descriptors in
557 DATA_IN. The code for the new tree should match TAG. Store in
558 *IX_P the index into the reader cache where the new tree is stored. */
560 tree
561 streamer_alloc_tree (struct lto_input_block *ib, struct data_in *data_in,
562 enum LTO_tags tag)
564 enum tree_code code;
565 tree result;
567 result = NULL_TREE;
569 code = lto_tag_to_tree_code (tag);
571 /* We should never see an SSA_NAME tree. Only the version numbers of
572 SSA names are ever written out. See input_ssa_names. */
573 gcc_assert (code != SSA_NAME);
575 /* Instantiate a new tree using the header data. */
576 if (CODE_CONTAINS_STRUCT (code, TS_STRING))
577 result = streamer_read_string_cst (data_in, ib);
578 else if (CODE_CONTAINS_STRUCT (code, TS_IDENTIFIER))
579 result = input_identifier (data_in, ib);
580 else if (CODE_CONTAINS_STRUCT (code, TS_VEC))
582 HOST_WIDE_INT len = streamer_read_hwi (ib);
583 result = make_tree_vec (len);
585 else if (CODE_CONTAINS_STRUCT (code, TS_VECTOR))
587 bitpack_d bp = streamer_read_bitpack (ib);
588 unsigned int log2_npatterns = bp_unpack_value (&bp, 8);
589 unsigned int nelts_per_pattern = bp_unpack_value (&bp, 8);
590 result = make_vector (log2_npatterns, nelts_per_pattern);
592 else if (CODE_CONTAINS_STRUCT (code, TS_BINFO))
594 unsigned HOST_WIDE_INT len = streamer_read_uhwi (ib);
595 result = make_tree_binfo (len);
597 else if (CODE_CONTAINS_STRUCT (code, TS_INT_CST))
599 unsigned HOST_WIDE_INT len = streamer_read_uhwi (ib);
600 unsigned HOST_WIDE_INT ext_len = streamer_read_uhwi (ib);
601 result = make_int_cst (len, ext_len);
603 else if (code == CALL_EXPR)
605 unsigned HOST_WIDE_INT nargs = streamer_read_uhwi (ib);
606 return build_vl_exp (CALL_EXPR, nargs + 3);
608 else if (code == OMP_CLAUSE)
610 enum omp_clause_code subcode
611 = (enum omp_clause_code) streamer_read_uhwi (ib);
612 return build_omp_clause (UNKNOWN_LOCATION, subcode);
614 else
616 /* For all other nodes, materialize the tree with a raw
617 make_node call. */
618 result = make_node (code);
621 return result;
625 /* Read all pointer fields in the TS_COMMON structure of EXPR from input
626 block IB. DATA_IN contains tables and descriptors for the
627 file being read. */
630 static void
631 lto_input_ts_common_tree_pointers (struct lto_input_block *ib,
632 struct data_in *data_in, tree expr)
634 if (TREE_CODE (expr) != IDENTIFIER_NODE)
635 TREE_TYPE (expr) = stream_read_tree (ib, data_in);
639 /* Read all pointer fields in the TS_VECTOR structure of EXPR from input
640 block IB. DATA_IN contains tables and descriptors for the
641 file being read. */
643 static void
644 lto_input_ts_vector_tree_pointers (struct lto_input_block *ib,
645 struct data_in *data_in, tree expr)
647 unsigned int count = vector_cst_encoded_nelts (expr);
648 for (unsigned int i = 0; i < count; ++i)
649 VECTOR_CST_ENCODED_ELT (expr, i) = stream_read_tree (ib, data_in);
653 /* Read all pointer fields in the TS_POLY_INT_CST structure of EXPR from
654 input block IB. DATA_IN contains tables and descriptors for the
655 file being read. */
657 static void
658 lto_input_ts_poly_tree_pointers (struct lto_input_block *ib,
659 struct data_in *data_in, tree expr)
661 for (unsigned int i = 0; i < NUM_POLY_INT_COEFFS; ++i)
662 POLY_INT_CST_COEFF (expr, i) = stream_read_tree (ib, data_in);
666 /* Read all pointer fields in the TS_COMPLEX structure of EXPR from input
667 block IB. DATA_IN contains tables and descriptors for the
668 file being read. */
670 static void
671 lto_input_ts_complex_tree_pointers (struct lto_input_block *ib,
672 struct data_in *data_in, tree expr)
674 TREE_REALPART (expr) = stream_read_tree (ib, data_in);
675 TREE_IMAGPART (expr) = stream_read_tree (ib, data_in);
679 /* Read all pointer fields in the TS_DECL_MINIMAL structure of EXPR
680 from input block IB. DATA_IN contains tables and descriptors for the
681 file being read. */
683 static void
684 lto_input_ts_decl_minimal_tree_pointers (struct lto_input_block *ib,
685 struct data_in *data_in, tree expr)
687 DECL_NAME (expr) = stream_read_tree (ib, data_in);
688 DECL_CONTEXT (expr) = stream_read_tree (ib, data_in);
692 /* Read all pointer fields in the TS_DECL_COMMON structure of EXPR from
693 input block IB. DATA_IN contains tables and descriptors for the
694 file being read. */
696 static void
697 lto_input_ts_decl_common_tree_pointers (struct lto_input_block *ib,
698 struct data_in *data_in, tree expr)
700 DECL_SIZE (expr) = stream_read_tree (ib, data_in);
701 DECL_SIZE_UNIT (expr) = stream_read_tree (ib, data_in);
702 DECL_ATTRIBUTES (expr) = stream_read_tree (ib, data_in);
703 DECL_ABSTRACT_ORIGIN (expr) = stream_read_tree (ib, data_in);
705 if ((VAR_P (expr) || TREE_CODE (expr) == PARM_DECL)
706 && DECL_HAS_VALUE_EXPR_P (expr))
707 SET_DECL_VALUE_EXPR (expr, stream_read_tree (ib, data_in));
709 if (VAR_P (expr)
710 && DECL_HAS_DEBUG_EXPR_P (expr))
712 tree dexpr = stream_read_tree (ib, data_in);
713 if (dexpr)
714 SET_DECL_DEBUG_EXPR (expr, dexpr);
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. */
723 static void
724 lto_input_ts_decl_non_common_tree_pointers (struct lto_input_block *,
725 struct data_in *, tree)
730 /* Read all pointer fields in the TS_DECL_WITH_VIS structure of EXPR
731 from input block IB. DATA_IN contains tables and descriptors for the
732 file being read. */
734 static void
735 lto_input_ts_decl_with_vis_tree_pointers (struct lto_input_block *ib,
736 struct data_in *data_in, tree expr)
738 tree id;
740 id = stream_read_tree (ib, data_in);
741 if (id)
743 gcc_assert (TREE_CODE (id) == IDENTIFIER_NODE);
744 SET_DECL_ASSEMBLER_NAME (expr, id);
749 /* Read all pointer fields in the TS_FIELD_DECL structure of EXPR from
750 input block IB. DATA_IN contains tables and descriptors for the
751 file being read. */
753 static void
754 lto_input_ts_field_decl_tree_pointers (struct lto_input_block *ib,
755 struct data_in *data_in, tree expr)
757 DECL_FIELD_OFFSET (expr) = stream_read_tree (ib, data_in);
758 DECL_BIT_FIELD_TYPE (expr) = stream_read_tree (ib, data_in);
759 DECL_BIT_FIELD_REPRESENTATIVE (expr) = stream_read_tree (ib, data_in);
760 DECL_FIELD_BIT_OFFSET (expr) = stream_read_tree (ib, data_in);
764 /* Read all pointer fields in the TS_FUNCTION_DECL structure of EXPR
765 from input block IB. DATA_IN contains tables and descriptors for the
766 file being read. */
768 static void
769 lto_input_ts_function_decl_tree_pointers (struct lto_input_block *ib,
770 struct data_in *data_in, tree expr)
772 DECL_VINDEX (expr) = stream_read_tree (ib, data_in);
773 /* DECL_STRUCT_FUNCTION is loaded on demand by cgraph_get_body. */
774 DECL_FUNCTION_PERSONALITY (expr) = stream_read_tree (ib, data_in);
775 #ifndef ACCEL_COMPILER
776 DECL_FUNCTION_SPECIFIC_TARGET (expr) = stream_read_tree (ib, data_in);
777 #endif
778 DECL_FUNCTION_SPECIFIC_OPTIMIZATION (expr) = stream_read_tree (ib, data_in);
779 #ifdef ACCEL_COMPILER
781 tree opts = DECL_FUNCTION_SPECIFIC_OPTIMIZATION (expr);
782 if (opts)
784 struct gcc_options tmp;
785 init_options_struct (&tmp, NULL);
786 cl_optimization_restore (&tmp, TREE_OPTIMIZATION (opts));
787 finish_options (&tmp, &global_options_set, UNKNOWN_LOCATION);
788 opts = build_optimization_node (&tmp);
789 finalize_options_struct (&tmp);
790 DECL_FUNCTION_SPECIFIC_OPTIMIZATION (expr) = opts;
793 #endif
795 /* If the file contains a function with an EH personality set,
796 then it was compiled with -fexceptions. In that case, initialize
797 the backend EH machinery. */
798 if (DECL_FUNCTION_PERSONALITY (expr))
799 lto_init_eh ();
803 /* Read all pointer fields in the TS_TYPE_COMMON structure of EXPR from
804 input block IB. DATA_IN contains tables and descriptors for the file
805 being read. */
807 static void
808 lto_input_ts_type_common_tree_pointers (struct lto_input_block *ib,
809 struct data_in *data_in, tree expr)
811 TYPE_SIZE (expr) = stream_read_tree (ib, data_in);
812 TYPE_SIZE_UNIT (expr) = stream_read_tree (ib, data_in);
813 TYPE_ATTRIBUTES (expr) = stream_read_tree (ib, data_in);
814 TYPE_NAME (expr) = stream_read_tree (ib, data_in);
815 /* Do not stream TYPE_POINTER_TO or TYPE_REFERENCE_TO. They will be
816 reconstructed during fixup. */
817 /* Do not stream TYPE_NEXT_VARIANT, we reconstruct the variant lists
818 during fixup. */
819 TYPE_MAIN_VARIANT (expr) = stream_read_tree (ib, data_in);
820 TYPE_CONTEXT (expr) = stream_read_tree (ib, data_in);
821 /* TYPE_CANONICAL gets re-computed during type merging. */
822 TYPE_CANONICAL (expr) = NULL_TREE;
823 TYPE_STUB_DECL (expr) = stream_read_tree (ib, data_in);
826 /* Read all pointer fields in the TS_TYPE_NON_COMMON structure of EXPR
827 from input block IB. DATA_IN contains tables and descriptors for the
828 file being read. */
830 static void
831 lto_input_ts_type_non_common_tree_pointers (struct lto_input_block *ib,
832 struct data_in *data_in,
833 tree expr)
835 if (TREE_CODE (expr) == ENUMERAL_TYPE)
836 TYPE_VALUES (expr) = stream_read_tree (ib, data_in);
837 else if (TREE_CODE (expr) == ARRAY_TYPE)
838 TYPE_DOMAIN (expr) = stream_read_tree (ib, data_in);
839 else if (RECORD_OR_UNION_TYPE_P (expr))
840 TYPE_FIELDS (expr) = streamer_read_chain (ib, data_in);
841 else if (TREE_CODE (expr) == FUNCTION_TYPE
842 || TREE_CODE (expr) == METHOD_TYPE)
843 TYPE_ARG_TYPES (expr) = stream_read_tree (ib, data_in);
845 if (!POINTER_TYPE_P (expr))
846 TYPE_MIN_VALUE_RAW (expr) = stream_read_tree (ib, data_in);
847 TYPE_MAX_VALUE_RAW (expr) = stream_read_tree (ib, data_in);
851 /* Read all pointer fields in the TS_LIST structure of EXPR from input
852 block IB. DATA_IN contains tables and descriptors for the
853 file being read. */
855 static void
856 lto_input_ts_list_tree_pointers (struct lto_input_block *ib,
857 struct data_in *data_in, tree expr)
859 TREE_PURPOSE (expr) = stream_read_tree (ib, data_in);
860 TREE_VALUE (expr) = stream_read_tree (ib, data_in);
861 TREE_CHAIN (expr) = stream_read_tree (ib, data_in);
865 /* Read all pointer fields in the TS_VEC structure of EXPR from input
866 block IB. DATA_IN contains tables and descriptors for the
867 file being read. */
869 static void
870 lto_input_ts_vec_tree_pointers (struct lto_input_block *ib,
871 struct data_in *data_in, tree expr)
873 int i;
875 /* Note that TREE_VEC_LENGTH was read by streamer_alloc_tree to
876 instantiate EXPR. */
877 for (i = 0; i < TREE_VEC_LENGTH (expr); i++)
878 TREE_VEC_ELT (expr, i) = stream_read_tree (ib, data_in);
882 /* Read all pointer fields in the TS_EXP structure of EXPR from input
883 block IB. DATA_IN contains tables and descriptors for the
884 file being read. */
887 static void
888 lto_input_ts_exp_tree_pointers (struct lto_input_block *ib,
889 struct data_in *data_in, tree expr)
891 int i;
892 tree block;
894 for (i = 0; i < TREE_OPERAND_LENGTH (expr); i++)
895 TREE_OPERAND (expr, i) = stream_read_tree (ib, data_in);
897 block = stream_read_tree (ib, data_in);
899 /* TODO: Block is stored in the locus information. It may make more sense to
900 to make it go via the location cache. */
901 if (block)
903 data_in->location_cache.apply_location_cache ();
904 TREE_SET_BLOCK (expr, block);
909 /* Read all pointer fields in the TS_BLOCK structure of EXPR from input
910 block IB. DATA_IN contains tables and descriptors for the
911 file being read. */
913 static void
914 lto_input_ts_block_tree_pointers (struct lto_input_block *ib,
915 struct data_in *data_in, tree expr)
917 BLOCK_VARS (expr) = streamer_read_chain (ib, data_in);
919 BLOCK_SUPERCONTEXT (expr) = stream_read_tree (ib, data_in);
920 BLOCK_ABSTRACT_ORIGIN (expr) = stream_read_tree (ib, data_in);
921 /* Do not stream BLOCK_NONLOCALIZED_VARS. We cannot handle debug information
922 for early inlined BLOCKs so drop it on the floor instead of ICEing in
923 dwarf2out.c. */
925 /* BLOCK_FRAGMENT_ORIGIN and BLOCK_FRAGMENT_CHAIN is not live at LTO
926 streaming time. */
928 /* We re-compute BLOCK_SUBBLOCKS of our parent here instead
929 of streaming it. For non-BLOCK BLOCK_SUPERCONTEXTs we still
930 stream the child relationship explicitly. */
931 if (BLOCK_SUPERCONTEXT (expr)
932 && TREE_CODE (BLOCK_SUPERCONTEXT (expr)) == BLOCK)
934 BLOCK_CHAIN (expr) = BLOCK_SUBBLOCKS (BLOCK_SUPERCONTEXT (expr));
935 BLOCK_SUBBLOCKS (BLOCK_SUPERCONTEXT (expr)) = expr;
938 /* The global block is rooted at the TU decl. Hook it here to
939 avoid the need to stream in this block during WPA time. */
940 else if (BLOCK_SUPERCONTEXT (expr)
941 && TREE_CODE (BLOCK_SUPERCONTEXT (expr)) == TRANSLATION_UNIT_DECL)
942 DECL_INITIAL (BLOCK_SUPERCONTEXT (expr)) = expr;
944 /* The function-level block is connected at the time we read in
945 function bodies for the same reason. */
949 /* Read all pointer fields in the TS_BINFO structure of EXPR from input
950 block IB. DATA_IN contains tables and descriptors for the
951 file being read. */
953 static void
954 lto_input_ts_binfo_tree_pointers (struct lto_input_block *ib,
955 struct data_in *data_in, tree expr)
957 tree t;
959 /* Note that the number of slots in EXPR was read in
960 streamer_alloc_tree when instantiating EXPR. However, the
961 vector is empty so we cannot rely on vec::length to know how many
962 elements to read. So, this list is emitted as a 0-terminated
963 list on the writer side. */
966 t = stream_read_tree (ib, data_in);
967 if (t)
968 BINFO_BASE_BINFOS (expr)->quick_push (t);
970 while (t);
972 BINFO_OFFSET (expr) = stream_read_tree (ib, data_in);
973 BINFO_VTABLE (expr) = stream_read_tree (ib, data_in);
975 /* Do not walk BINFO_INHERITANCE_CHAIN, BINFO_SUBVTT_INDEX,
976 BINFO_BASE_ACCESSES and BINFO_VPTR_INDEX; these are used by C++ FE
977 only. */
981 /* Read all pointer fields in the TS_CONSTRUCTOR structure of EXPR from
982 input block IB. DATA_IN contains tables and descriptors for the
983 file being read. */
985 static void
986 lto_input_ts_constructor_tree_pointers (struct lto_input_block *ib,
987 struct data_in *data_in, tree expr)
989 unsigned i;
991 for (i = 0; i < CONSTRUCTOR_NELTS (expr); i++)
993 constructor_elt e;
994 e.index = stream_read_tree (ib, data_in);
995 e.value = stream_read_tree (ib, data_in);
996 (*CONSTRUCTOR_ELTS (expr))[i] = e;
1001 /* Read all pointer fields in the TS_OMP_CLAUSE structure of EXPR from
1002 input block IB. DATA_IN contains tables and descriptors for the
1003 file being read. */
1005 static void
1006 lto_input_ts_omp_clause_tree_pointers (struct lto_input_block *ib,
1007 struct data_in *data_in, tree expr)
1009 int i;
1011 for (i = 0; i < omp_clause_num_ops[OMP_CLAUSE_CODE (expr)]; i++)
1012 OMP_CLAUSE_OPERAND (expr, i) = stream_read_tree (ib, data_in);
1013 OMP_CLAUSE_CHAIN (expr) = stream_read_tree (ib, data_in);
1017 /* Read all pointer fields in EXPR from input block IB. DATA_IN
1018 contains tables and descriptors for the file being read. */
1020 void
1021 streamer_read_tree_body (struct lto_input_block *ib, struct data_in *data_in,
1022 tree expr)
1024 enum tree_code code;
1026 code = TREE_CODE (expr);
1028 if (CODE_CONTAINS_STRUCT (code, TS_TYPED))
1029 lto_input_ts_common_tree_pointers (ib, data_in, expr);
1031 if (CODE_CONTAINS_STRUCT (code, TS_VECTOR))
1032 lto_input_ts_vector_tree_pointers (ib, data_in, expr);
1034 if (CODE_CONTAINS_STRUCT (code, TS_POLY_INT_CST))
1035 lto_input_ts_poly_tree_pointers (ib, data_in, expr);
1037 if (CODE_CONTAINS_STRUCT (code, TS_COMPLEX))
1038 lto_input_ts_complex_tree_pointers (ib, data_in, expr);
1040 if (CODE_CONTAINS_STRUCT (code, TS_DECL_MINIMAL))
1041 lto_input_ts_decl_minimal_tree_pointers (ib, data_in, expr);
1043 if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
1044 lto_input_ts_decl_common_tree_pointers (ib, data_in, expr);
1046 if (CODE_CONTAINS_STRUCT (code, TS_DECL_NON_COMMON))
1047 lto_input_ts_decl_non_common_tree_pointers (ib, data_in, expr);
1049 if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS))
1050 lto_input_ts_decl_with_vis_tree_pointers (ib, data_in, expr);
1052 if (CODE_CONTAINS_STRUCT (code, TS_FIELD_DECL))
1053 lto_input_ts_field_decl_tree_pointers (ib, data_in, expr);
1055 if (CODE_CONTAINS_STRUCT (code, TS_FUNCTION_DECL))
1056 lto_input_ts_function_decl_tree_pointers (ib, data_in, expr);
1058 if (CODE_CONTAINS_STRUCT (code, TS_TYPE_COMMON))
1059 lto_input_ts_type_common_tree_pointers (ib, data_in, expr);
1061 if (CODE_CONTAINS_STRUCT (code, TS_TYPE_NON_COMMON))
1062 lto_input_ts_type_non_common_tree_pointers (ib, data_in, expr);
1064 if (CODE_CONTAINS_STRUCT (code, TS_LIST))
1065 lto_input_ts_list_tree_pointers (ib, data_in, expr);
1067 if (CODE_CONTAINS_STRUCT (code, TS_VEC))
1068 lto_input_ts_vec_tree_pointers (ib, data_in, expr);
1070 if (CODE_CONTAINS_STRUCT (code, TS_EXP))
1071 lto_input_ts_exp_tree_pointers (ib, data_in, expr);
1073 if (CODE_CONTAINS_STRUCT (code, TS_BLOCK))
1074 lto_input_ts_block_tree_pointers (ib, data_in, expr);
1076 if (CODE_CONTAINS_STRUCT (code, TS_BINFO))
1077 lto_input_ts_binfo_tree_pointers (ib, data_in, expr);
1079 if (CODE_CONTAINS_STRUCT (code, TS_CONSTRUCTOR))
1080 lto_input_ts_constructor_tree_pointers (ib, data_in, expr);
1082 if (code == OMP_CLAUSE)
1083 lto_input_ts_omp_clause_tree_pointers (ib, data_in, expr);
1087 /* Read an index IX from input block IB and return the tree node at
1088 DATA_IN->FILE_DATA->GLOBALS_INDEX[IX]. */
1090 tree
1091 streamer_get_pickled_tree (struct lto_input_block *ib, struct data_in *data_in)
1093 unsigned HOST_WIDE_INT ix;
1094 tree result;
1095 enum LTO_tags expected_tag;
1097 ix = streamer_read_uhwi (ib);
1098 expected_tag = streamer_read_enum (ib, LTO_tags, LTO_NUM_TAGS);
1100 result = streamer_tree_cache_get_tree (data_in->reader_cache, ix);
1101 gcc_assert (result
1102 && TREE_CODE (result) == lto_tag_to_tree_code (expected_tag));
1104 return result;