* gcc.dg/ipa/inlinehint-4.c: Also pass --param inline-unit-growth=20.
[official-gcc.git] / gcc / tree-streamer-in.c
blob912fa5f0f02561098594ec7c1d98fa6e2b3c5c3b
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 "ipa-chkp.h"
34 #include "gomp-constants.h"
35 #include "stringpool.h"
36 #include "attribs.h"
37 #include "asan.h"
38 #include "opts.h"
41 /* Read a STRING_CST from the string table in DATA_IN using input
42 block IB. */
44 tree
45 streamer_read_string_cst (struct data_in *data_in, struct lto_input_block *ib)
47 unsigned int len;
48 const char * ptr;
50 ptr = streamer_read_indexed_string (data_in, ib, &len);
51 if (!ptr)
52 return NULL;
53 return build_string (len, ptr);
57 /* Read an IDENTIFIER from the string table in DATA_IN using input
58 block IB. */
60 static tree
61 input_identifier (struct data_in *data_in, struct lto_input_block *ib)
63 unsigned int len;
64 const char *ptr;
66 ptr = streamer_read_indexed_string (data_in, ib, &len);
67 if (!ptr)
68 return NULL;
69 return get_identifier_with_length (ptr, len);
73 /* Read a chain of tree nodes from input block IB. DATA_IN contains
74 tables and descriptors for the file being read. */
76 tree
77 streamer_read_chain (struct lto_input_block *ib, struct data_in *data_in)
79 tree first, prev, curr;
81 /* The chain is written as NULL terminated list of trees. */
82 first = prev = NULL_TREE;
85 curr = stream_read_tree (ib, data_in);
86 if (prev)
87 TREE_CHAIN (prev) = curr;
88 else
89 first = curr;
91 prev = curr;
93 while (curr);
95 return first;
99 /* Unpack all the non-pointer fields of the TS_BASE structure of
100 expression EXPR from bitpack BP. */
102 static inline void
103 unpack_ts_base_value_fields (struct bitpack_d *bp, tree expr)
105 /* Note that the code for EXPR has already been unpacked to create EXPR in
106 streamer_alloc_tree. */
107 if (!TYPE_P (expr))
109 TREE_SIDE_EFFECTS (expr) = (unsigned) bp_unpack_value (bp, 1);
110 TREE_CONSTANT (expr) = (unsigned) bp_unpack_value (bp, 1);
111 TREE_READONLY (expr) = (unsigned) bp_unpack_value (bp, 1);
113 /* TREE_PUBLIC is used on types to indicate that the type
114 has a TYPE_CACHED_VALUES vector. This is not streamed out,
115 so we skip it here. */
116 TREE_PUBLIC (expr) = (unsigned) bp_unpack_value (bp, 1);
118 else
119 bp_unpack_value (bp, 4);
120 TREE_ADDRESSABLE (expr) = (unsigned) bp_unpack_value (bp, 1);
121 TREE_THIS_VOLATILE (expr) = (unsigned) bp_unpack_value (bp, 1);
122 if (DECL_P (expr))
124 DECL_UNSIGNED (expr) = (unsigned) bp_unpack_value (bp, 1);
125 DECL_NAMELESS (expr) = (unsigned) bp_unpack_value (bp, 1);
127 else if (TYPE_P (expr))
128 TYPE_UNSIGNED (expr) = (unsigned) bp_unpack_value (bp, 1);
129 else
130 bp_unpack_value (bp, 1);
131 TREE_ASM_WRITTEN (expr) = (unsigned) bp_unpack_value (bp, 1);
132 if (TYPE_P (expr))
133 TYPE_ARTIFICIAL (expr) = (unsigned) bp_unpack_value (bp, 1);
134 else
135 TREE_NO_WARNING (expr) = (unsigned) bp_unpack_value (bp, 1);
136 TREE_NOTHROW (expr) = (unsigned) bp_unpack_value (bp, 1);
137 TREE_STATIC (expr) = (unsigned) bp_unpack_value (bp, 1);
138 if (TREE_CODE (expr) != TREE_BINFO)
139 TREE_PRIVATE (expr) = (unsigned) bp_unpack_value (bp, 1);
140 else
141 bp_unpack_value (bp, 1);
142 TREE_PROTECTED (expr) = (unsigned) bp_unpack_value (bp, 1);
143 TREE_DEPRECATED (expr) = (unsigned) bp_unpack_value (bp, 1);
144 if (TYPE_P (expr))
146 if (AGGREGATE_TYPE_P (expr))
147 TYPE_REVERSE_STORAGE_ORDER (expr) = (unsigned) bp_unpack_value (bp, 1);
148 else
149 TYPE_SATURATING (expr) = (unsigned) bp_unpack_value (bp, 1);
150 TYPE_ADDR_SPACE (expr) = (unsigned) bp_unpack_value (bp, 8);
152 else if (TREE_CODE (expr) == BIT_FIELD_REF || TREE_CODE (expr) == MEM_REF)
154 REF_REVERSE_STORAGE_ORDER (expr) = (unsigned) bp_unpack_value (bp, 1);
155 bp_unpack_value (bp, 8);
157 else if (TREE_CODE (expr) == SSA_NAME)
159 SSA_NAME_IS_DEFAULT_DEF (expr) = (unsigned) bp_unpack_value (bp, 1);
160 bp_unpack_value (bp, 8);
162 else
163 bp_unpack_value (bp, 9);
167 /* Unpack all the non-pointer fields of the TS_INT_CST structure of
168 expression EXPR from bitpack BP. */
170 static void
171 unpack_ts_int_cst_value_fields (struct bitpack_d *bp, tree expr)
173 int i;
174 for (i = 0; i < TREE_INT_CST_EXT_NUNITS (expr); i++)
175 TREE_INT_CST_ELT (expr, i) = bp_unpack_var_len_int (bp);
179 /* Unpack all the non-pointer fields of the TS_REAL_CST structure of
180 expression EXPR from bitpack BP. */
182 static void
183 unpack_ts_real_cst_value_fields (struct bitpack_d *bp, tree expr)
185 unsigned i;
186 REAL_VALUE_TYPE r;
187 REAL_VALUE_TYPE *rp;
189 /* Clear all bits of the real value type so that we can later do
190 bitwise comparisons to see if two values are the same. */
191 memset (&r, 0, sizeof r);
192 r.cl = (unsigned) bp_unpack_value (bp, 2);
193 r.decimal = (unsigned) bp_unpack_value (bp, 1);
194 r.sign = (unsigned) bp_unpack_value (bp, 1);
195 r.signalling = (unsigned) bp_unpack_value (bp, 1);
196 r.canonical = (unsigned) bp_unpack_value (bp, 1);
197 r.uexp = (unsigned) bp_unpack_value (bp, EXP_BITS);
198 for (i = 0; i < SIGSZ; i++)
199 r.sig[i] = (unsigned long) bp_unpack_value (bp, HOST_BITS_PER_LONG);
201 rp = ggc_alloc<real_value> ();
202 memcpy (rp, &r, sizeof (REAL_VALUE_TYPE));
203 TREE_REAL_CST_PTR (expr) = rp;
207 /* Unpack all the non-pointer fields of the TS_FIXED_CST structure of
208 expression EXPR from bitpack BP. */
210 static void
211 unpack_ts_fixed_cst_value_fields (struct bitpack_d *bp, tree expr)
213 FIXED_VALUE_TYPE *fp = ggc_alloc<fixed_value> ();
214 fp->mode = as_a <scalar_mode> (bp_unpack_machine_mode (bp));
215 fp->data.low = bp_unpack_var_len_int (bp);
216 fp->data.high = bp_unpack_var_len_int (bp);
217 TREE_FIXED_CST_PTR (expr) = fp;
220 /* Unpack all the non-pointer fields of the TS_DECL_COMMON structure
221 of expression EXPR from bitpack BP. */
223 static void
224 unpack_ts_decl_common_value_fields (struct bitpack_d *bp, tree expr)
226 SET_DECL_MODE (expr, bp_unpack_machine_mode (bp));
227 DECL_NONLOCAL (expr) = (unsigned) bp_unpack_value (bp, 1);
228 DECL_VIRTUAL_P (expr) = (unsigned) bp_unpack_value (bp, 1);
229 DECL_IGNORED_P (expr) = (unsigned) bp_unpack_value (bp, 1);
230 DECL_ABSTRACT_P (expr) = (unsigned) bp_unpack_value (bp, 1);
231 DECL_ARTIFICIAL (expr) = (unsigned) bp_unpack_value (bp, 1);
232 DECL_USER_ALIGN (expr) = (unsigned) bp_unpack_value (bp, 1);
233 DECL_PRESERVE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
234 DECL_EXTERNAL (expr) = (unsigned) bp_unpack_value (bp, 1);
235 DECL_GIMPLE_REG_P (expr) = (unsigned) bp_unpack_value (bp, 1);
236 SET_DECL_ALIGN (expr, (unsigned) bp_unpack_var_len_unsigned (bp));
237 #ifdef ACCEL_COMPILER
238 if (DECL_ALIGN (expr) > targetm.absolute_biggest_alignment)
239 SET_DECL_ALIGN (expr, targetm.absolute_biggest_alignment);
240 #endif
241 if (TREE_CODE (expr) == LABEL_DECL)
243 EH_LANDING_PAD_NR (expr) = (int) bp_unpack_var_len_unsigned (bp);
245 /* Always assume an initial value of -1 for LABEL_DECL_UID to
246 force gimple_set_bb to recreate label_to_block_map. */
247 LABEL_DECL_UID (expr) = -1;
250 if (TREE_CODE (expr) == FIELD_DECL)
252 DECL_PACKED (expr) = (unsigned) bp_unpack_value (bp, 1);
253 DECL_NONADDRESSABLE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
254 DECL_PADDING_P (expr) = (unsigned) bp_unpack_value (bp, 1);
255 expr->decl_common.off_align = bp_unpack_value (bp, 8);
258 if (VAR_P (expr))
260 DECL_HAS_DEBUG_EXPR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
261 DECL_NONLOCAL_FRAME (expr) = (unsigned) bp_unpack_value (bp, 1);
264 if (TREE_CODE (expr) == RESULT_DECL
265 || TREE_CODE (expr) == PARM_DECL
266 || VAR_P (expr))
268 DECL_BY_REFERENCE (expr) = (unsigned) bp_unpack_value (bp, 1);
269 if (VAR_P (expr) || TREE_CODE (expr) == PARM_DECL)
270 DECL_HAS_VALUE_EXPR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
275 /* Unpack all the non-pointer fields of the TS_DECL_WRTL structure
276 of expression EXPR from bitpack BP. */
278 static void
279 unpack_ts_decl_wrtl_value_fields (struct bitpack_d *bp, tree expr)
281 DECL_REGISTER (expr) = (unsigned) bp_unpack_value (bp, 1);
285 /* Unpack all the non-pointer fields of the TS_DECL_WITH_VIS structure
286 of expression EXPR from bitpack BP. */
288 static void
289 unpack_ts_decl_with_vis_value_fields (struct bitpack_d *bp, tree expr)
291 DECL_COMMON (expr) = (unsigned) bp_unpack_value (bp, 1);
292 DECL_DLLIMPORT_P (expr) = (unsigned) bp_unpack_value (bp, 1);
293 DECL_WEAK (expr) = (unsigned) bp_unpack_value (bp, 1);
294 DECL_SEEN_IN_BIND_EXPR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
295 DECL_COMDAT (expr) = (unsigned) bp_unpack_value (bp, 1);
296 DECL_VISIBILITY (expr) = (enum symbol_visibility) bp_unpack_value (bp, 2);
297 DECL_VISIBILITY_SPECIFIED (expr) = (unsigned) bp_unpack_value (bp, 1);
299 if (VAR_P (expr))
301 DECL_HARD_REGISTER (expr) = (unsigned) bp_unpack_value (bp, 1);
302 DECL_IN_CONSTANT_POOL (expr) = (unsigned) bp_unpack_value (bp, 1);
305 if (TREE_CODE (expr) == FUNCTION_DECL)
307 DECL_FINAL_P (expr) = (unsigned) bp_unpack_value (bp, 1);
308 DECL_CXX_CONSTRUCTOR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
309 DECL_CXX_DESTRUCTOR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
314 /* Unpack all the non-pointer fields of the TS_FUNCTION_DECL structure
315 of expression EXPR from bitpack BP. */
317 static void
318 unpack_ts_function_decl_value_fields (struct bitpack_d *bp, tree expr)
320 DECL_BUILT_IN_CLASS (expr) = bp_unpack_enum (bp, built_in_class,
321 BUILT_IN_LAST);
322 DECL_STATIC_CONSTRUCTOR (expr) = (unsigned) bp_unpack_value (bp, 1);
323 DECL_STATIC_DESTRUCTOR (expr) = (unsigned) bp_unpack_value (bp, 1);
324 DECL_UNINLINABLE (expr) = (unsigned) bp_unpack_value (bp, 1);
325 DECL_POSSIBLY_INLINED (expr) = (unsigned) bp_unpack_value (bp, 1);
326 DECL_IS_NOVOPS (expr) = (unsigned) bp_unpack_value (bp, 1);
327 DECL_IS_RETURNS_TWICE (expr) = (unsigned) bp_unpack_value (bp, 1);
328 DECL_IS_MALLOC (expr) = (unsigned) bp_unpack_value (bp, 1);
329 DECL_IS_OPERATOR_NEW (expr) = (unsigned) bp_unpack_value (bp, 1);
330 DECL_DECLARED_INLINE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
331 DECL_STATIC_CHAIN (expr) = (unsigned) bp_unpack_value (bp, 1);
332 DECL_NO_INLINE_WARNING_P (expr) = (unsigned) bp_unpack_value (bp, 1);
333 DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT (expr)
334 = (unsigned) bp_unpack_value (bp, 1);
335 DECL_NO_LIMIT_STACK (expr) = (unsigned) bp_unpack_value (bp, 1);
336 DECL_DISREGARD_INLINE_LIMITS (expr) = (unsigned) bp_unpack_value (bp, 1);
337 DECL_PURE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
338 DECL_LOOPING_CONST_OR_PURE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
339 if (DECL_BUILT_IN_CLASS (expr) != NOT_BUILT_IN)
341 DECL_FUNCTION_CODE (expr) = (enum built_in_function) bp_unpack_value (bp,
342 12);
343 if (DECL_BUILT_IN_CLASS (expr) == BUILT_IN_NORMAL
344 && DECL_FUNCTION_CODE (expr) >= END_BUILTINS)
345 fatal_error (input_location,
346 "machine independent builtin code out of range");
347 else if (DECL_BUILT_IN_CLASS (expr) == BUILT_IN_MD)
349 tree result = targetm.builtin_decl (DECL_FUNCTION_CODE (expr), true);
350 if (!result || result == error_mark_node)
351 fatal_error (input_location,
352 "target specific builtin not available");
358 /* Unpack all the non-pointer fields of the TS_TYPE_COMMON structure
359 of expression EXPR from bitpack BP. */
361 static void
362 unpack_ts_type_common_value_fields (struct bitpack_d *bp, tree expr)
364 machine_mode mode;
366 mode = bp_unpack_machine_mode (bp);
367 SET_TYPE_MODE (expr, mode);
368 TYPE_STRING_FLAG (expr) = (unsigned) bp_unpack_value (bp, 1);
369 /* TYPE_NO_FORCE_BLK is private to stor-layout and need
370 no streaming. */
371 TYPE_NEEDS_CONSTRUCTING (expr) = (unsigned) bp_unpack_value (bp, 1);
372 TYPE_PACKED (expr) = (unsigned) bp_unpack_value (bp, 1);
373 TYPE_RESTRICT (expr) = (unsigned) bp_unpack_value (bp, 1);
374 TYPE_USER_ALIGN (expr) = (unsigned) bp_unpack_value (bp, 1);
375 TYPE_READONLY (expr) = (unsigned) bp_unpack_value (bp, 1);
376 if (RECORD_OR_UNION_TYPE_P (expr))
378 TYPE_TRANSPARENT_AGGR (expr) = (unsigned) bp_unpack_value (bp, 1);
379 TYPE_FINAL_P (expr) = (unsigned) bp_unpack_value (bp, 1);
381 else if (TREE_CODE (expr) == ARRAY_TYPE)
382 TYPE_NONALIASED_COMPONENT (expr) = (unsigned) bp_unpack_value (bp, 1);
383 if (AGGREGATE_TYPE_P (expr))
384 TYPE_TYPELESS_STORAGE (expr) = (unsigned) bp_unpack_value (bp, 1);
385 TYPE_EMPTY_P (expr) = (unsigned) bp_unpack_value (bp, 1);
386 TYPE_PRECISION (expr) = bp_unpack_var_len_unsigned (bp);
387 SET_TYPE_ALIGN (expr, bp_unpack_var_len_unsigned (bp));
388 #ifdef ACCEL_COMPILER
389 if (TYPE_ALIGN (expr) > targetm.absolute_biggest_alignment)
390 SET_TYPE_ALIGN (expr, targetm.absolute_biggest_alignment);
391 #endif
395 /* Unpack all the non-pointer fields of the TS_BLOCK structure
396 of expression EXPR from bitpack BP. */
398 static void
399 unpack_ts_block_value_fields (struct data_in *data_in,
400 struct bitpack_d *bp, tree expr)
402 BLOCK_ABSTRACT (expr) = (unsigned) bp_unpack_value (bp, 1);
403 /* BLOCK_NUMBER is recomputed. */
404 stream_input_location (&BLOCK_SOURCE_LOCATION (expr), bp, data_in);
407 /* Unpack all the non-pointer fields of the TS_TRANSLATION_UNIT_DECL
408 structure of expression EXPR from bitpack BP. */
410 static void
411 unpack_ts_translation_unit_decl_value_fields (struct data_in *data_in,
412 struct bitpack_d *bp, tree expr)
414 TRANSLATION_UNIT_LANGUAGE (expr) = xstrdup (bp_unpack_string (data_in, bp));
415 vec_safe_push (all_translation_units, expr);
419 /* Unpack all the non-pointer fields of the TS_OMP_CLAUSE
420 structure of expression EXPR from bitpack BP. */
422 static void
423 unpack_ts_omp_clause_value_fields (struct data_in *data_in,
424 struct bitpack_d *bp, tree expr)
426 stream_input_location (&OMP_CLAUSE_LOCATION (expr), bp, data_in);
427 switch (OMP_CLAUSE_CODE (expr))
429 case OMP_CLAUSE_DEFAULT:
430 OMP_CLAUSE_DEFAULT_KIND (expr)
431 = bp_unpack_enum (bp, omp_clause_default_kind,
432 OMP_CLAUSE_DEFAULT_LAST);
433 break;
434 case OMP_CLAUSE_SCHEDULE:
435 OMP_CLAUSE_SCHEDULE_KIND (expr)
436 = bp_unpack_enum (bp, omp_clause_schedule_kind,
437 OMP_CLAUSE_SCHEDULE_LAST);
438 break;
439 case OMP_CLAUSE_DEPEND:
440 OMP_CLAUSE_DEPEND_KIND (expr)
441 = bp_unpack_enum (bp, omp_clause_depend_kind, OMP_CLAUSE_DEPEND_LAST);
442 break;
443 case OMP_CLAUSE_MAP:
444 OMP_CLAUSE_SET_MAP_KIND (expr, bp_unpack_enum (bp, gomp_map_kind,
445 GOMP_MAP_LAST));
446 break;
447 case OMP_CLAUSE_PROC_BIND:
448 OMP_CLAUSE_PROC_BIND_KIND (expr)
449 = bp_unpack_enum (bp, omp_clause_proc_bind_kind,
450 OMP_CLAUSE_PROC_BIND_LAST);
451 break;
452 case OMP_CLAUSE_REDUCTION:
453 OMP_CLAUSE_REDUCTION_CODE (expr)
454 = bp_unpack_enum (bp, tree_code, MAX_TREE_CODES);
455 break;
456 default:
457 break;
462 /* Read all the language-independent bitfield values for EXPR from IB.
463 Return the partially unpacked bitpack so the caller can unpack any other
464 bitfield values that the writer may have written. */
466 void
467 streamer_read_tree_bitfields (struct lto_input_block *ib,
468 struct data_in *data_in, tree expr)
470 enum tree_code code;
471 struct bitpack_d bp;
473 /* Read the bitpack of non-pointer values from IB. */
474 bp = streamer_read_bitpack (ib);
476 /* The first word in BP contains the code of the tree that we
477 are about to read. */
478 code = (enum tree_code) bp_unpack_value (&bp, 16);
479 lto_tag_check (lto_tree_code_to_tag (code),
480 lto_tree_code_to_tag (TREE_CODE (expr)));
482 /* Note that all these functions are highly sensitive to changes in
483 the types and sizes of each of the fields being packed. */
484 unpack_ts_base_value_fields (&bp, expr);
486 if (CODE_CONTAINS_STRUCT (code, TS_INT_CST))
487 unpack_ts_int_cst_value_fields (&bp, expr);
489 if (CODE_CONTAINS_STRUCT (code, TS_REAL_CST))
490 unpack_ts_real_cst_value_fields (&bp, expr);
492 if (CODE_CONTAINS_STRUCT (code, TS_FIXED_CST))
493 unpack_ts_fixed_cst_value_fields (&bp, expr);
495 if (CODE_CONTAINS_STRUCT (code, TS_DECL_MINIMAL))
496 stream_input_location (&DECL_SOURCE_LOCATION (expr), &bp, data_in);
498 if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
499 unpack_ts_decl_common_value_fields (&bp, expr);
501 if (CODE_CONTAINS_STRUCT (code, TS_DECL_WRTL))
502 unpack_ts_decl_wrtl_value_fields (&bp, expr);
504 if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS))
505 unpack_ts_decl_with_vis_value_fields (&bp, expr);
507 if (CODE_CONTAINS_STRUCT (code, TS_FUNCTION_DECL))
508 unpack_ts_function_decl_value_fields (&bp, expr);
510 if (CODE_CONTAINS_STRUCT (code, TS_TYPE_COMMON))
511 unpack_ts_type_common_value_fields (&bp, expr);
513 if (CODE_CONTAINS_STRUCT (code, TS_EXP))
515 stream_input_location (&EXPR_CHECK (expr)->exp.locus, &bp, data_in);
516 if (code == MEM_REF
517 || code == TARGET_MEM_REF)
519 MR_DEPENDENCE_CLIQUE (expr)
520 = (unsigned)bp_unpack_value (&bp, sizeof (short) * 8);
521 if (MR_DEPENDENCE_CLIQUE (expr) != 0)
522 MR_DEPENDENCE_BASE (expr)
523 = (unsigned)bp_unpack_value (&bp, sizeof (short) * 8);
527 if (CODE_CONTAINS_STRUCT (code, TS_BLOCK))
528 unpack_ts_block_value_fields (data_in, &bp, expr);
530 if (CODE_CONTAINS_STRUCT (code, TS_TRANSLATION_UNIT_DECL))
531 unpack_ts_translation_unit_decl_value_fields (data_in, &bp, expr);
533 if (CODE_CONTAINS_STRUCT (code, TS_OPTIMIZATION))
534 cl_optimization_stream_in (&bp, TREE_OPTIMIZATION (expr));
536 if (CODE_CONTAINS_STRUCT (code, TS_BINFO))
538 unsigned HOST_WIDE_INT length = bp_unpack_var_len_unsigned (&bp);
539 if (length > 0)
540 vec_safe_grow (BINFO_BASE_ACCESSES (expr), length);
543 if (CODE_CONTAINS_STRUCT (code, TS_CONSTRUCTOR))
545 unsigned HOST_WIDE_INT length = bp_unpack_var_len_unsigned (&bp);
546 if (length > 0)
547 vec_safe_grow (CONSTRUCTOR_ELTS (expr), length);
550 #ifndef ACCEL_COMPILER
551 if (CODE_CONTAINS_STRUCT (code, TS_TARGET_OPTION))
553 cl_target_option_stream_in (data_in, &bp, TREE_TARGET_OPTION (expr));
554 if (targetm.target_option.post_stream_in)
555 targetm.target_option.post_stream_in (TREE_TARGET_OPTION (expr));
557 #endif
559 if (code == OMP_CLAUSE)
560 unpack_ts_omp_clause_value_fields (data_in, &bp, expr);
564 /* Materialize a new tree from input block IB using descriptors in
565 DATA_IN. The code for the new tree should match TAG. Store in
566 *IX_P the index into the reader cache where the new tree is stored. */
568 tree
569 streamer_alloc_tree (struct lto_input_block *ib, struct data_in *data_in,
570 enum LTO_tags tag)
572 enum tree_code code;
573 tree result;
575 result = NULL_TREE;
577 code = lto_tag_to_tree_code (tag);
579 /* We should never see an SSA_NAME tree. Only the version numbers of
580 SSA names are ever written out. See input_ssa_names. */
581 gcc_assert (code != SSA_NAME);
583 /* Instantiate a new tree using the header data. */
584 if (CODE_CONTAINS_STRUCT (code, TS_STRING))
585 result = streamer_read_string_cst (data_in, ib);
586 else if (CODE_CONTAINS_STRUCT (code, TS_IDENTIFIER))
587 result = input_identifier (data_in, ib);
588 else if (CODE_CONTAINS_STRUCT (code, TS_VEC))
590 HOST_WIDE_INT len = streamer_read_hwi (ib);
591 result = make_tree_vec (len);
593 else if (CODE_CONTAINS_STRUCT (code, TS_VECTOR))
595 bitpack_d bp = streamer_read_bitpack (ib);
596 unsigned int log2_npatterns = bp_unpack_value (&bp, 8);
597 unsigned int nelts_per_pattern = bp_unpack_value (&bp, 8);
598 result = make_vector (log2_npatterns, nelts_per_pattern);
600 else if (CODE_CONTAINS_STRUCT (code, TS_BINFO))
602 unsigned HOST_WIDE_INT len = streamer_read_uhwi (ib);
603 result = make_tree_binfo (len);
605 else if (CODE_CONTAINS_STRUCT (code, TS_INT_CST))
607 unsigned HOST_WIDE_INT len = streamer_read_uhwi (ib);
608 unsigned HOST_WIDE_INT ext_len = streamer_read_uhwi (ib);
609 result = make_int_cst (len, ext_len);
611 else if (code == CALL_EXPR)
613 unsigned HOST_WIDE_INT nargs = streamer_read_uhwi (ib);
614 return build_vl_exp (CALL_EXPR, nargs + 3);
616 else if (code == OMP_CLAUSE)
618 enum omp_clause_code subcode
619 = (enum omp_clause_code) streamer_read_uhwi (ib);
620 return build_omp_clause (UNKNOWN_LOCATION, subcode);
622 else
624 /* For all other nodes, materialize the tree with a raw
625 make_node call. */
626 result = make_node (code);
629 return result;
633 /* Read all pointer fields in the TS_COMMON structure of EXPR from input
634 block IB. DATA_IN contains tables and descriptors for the
635 file being read. */
638 static void
639 lto_input_ts_common_tree_pointers (struct lto_input_block *ib,
640 struct data_in *data_in, tree expr)
642 if (TREE_CODE (expr) != IDENTIFIER_NODE)
643 TREE_TYPE (expr) = stream_read_tree (ib, data_in);
647 /* Read all pointer fields in the TS_VECTOR structure of EXPR from input
648 block IB. DATA_IN contains tables and descriptors for the
649 file being read. */
651 static void
652 lto_input_ts_vector_tree_pointers (struct lto_input_block *ib,
653 struct data_in *data_in, tree expr)
655 unsigned int count = vector_cst_encoded_nelts (expr);
656 for (unsigned int i = 0; i < count; ++i)
657 VECTOR_CST_ENCODED_ELT (expr, i) = stream_read_tree (ib, data_in);
661 /* Read all pointer fields in the TS_POLY_INT_CST structure of EXPR from
662 input block IB. DATA_IN contains tables and descriptors for the
663 file being read. */
665 static void
666 lto_input_ts_poly_tree_pointers (struct lto_input_block *ib,
667 struct data_in *data_in, tree expr)
669 for (unsigned int i = 0; i < NUM_POLY_INT_COEFFS; ++i)
670 POLY_INT_CST_COEFF (expr, i) = stream_read_tree (ib, data_in);
674 /* Read all pointer fields in the TS_COMPLEX structure of EXPR from input
675 block IB. DATA_IN contains tables and descriptors for the
676 file being read. */
678 static void
679 lto_input_ts_complex_tree_pointers (struct lto_input_block *ib,
680 struct data_in *data_in, tree expr)
682 TREE_REALPART (expr) = stream_read_tree (ib, data_in);
683 TREE_IMAGPART (expr) = stream_read_tree (ib, data_in);
687 /* Read all pointer fields in the TS_DECL_MINIMAL structure of EXPR
688 from input block IB. DATA_IN contains tables and descriptors for the
689 file being read. */
691 static void
692 lto_input_ts_decl_minimal_tree_pointers (struct lto_input_block *ib,
693 struct data_in *data_in, tree expr)
695 DECL_NAME (expr) = stream_read_tree (ib, data_in);
696 DECL_CONTEXT (expr) = stream_read_tree (ib, data_in);
700 /* Read all pointer fields in the TS_DECL_COMMON structure of EXPR from
701 input block IB. DATA_IN contains tables and descriptors for the
702 file being read. */
704 static void
705 lto_input_ts_decl_common_tree_pointers (struct lto_input_block *ib,
706 struct data_in *data_in, tree expr)
708 DECL_SIZE (expr) = stream_read_tree (ib, data_in);
709 DECL_SIZE_UNIT (expr) = stream_read_tree (ib, data_in);
710 DECL_ATTRIBUTES (expr) = stream_read_tree (ib, data_in);
711 DECL_ABSTRACT_ORIGIN (expr) = stream_read_tree (ib, data_in);
713 if ((VAR_P (expr) || TREE_CODE (expr) == PARM_DECL)
714 && DECL_HAS_VALUE_EXPR_P (expr))
715 SET_DECL_VALUE_EXPR (expr, stream_read_tree (ib, data_in));
717 if (VAR_P (expr)
718 && DECL_HAS_DEBUG_EXPR_P (expr))
720 tree dexpr = stream_read_tree (ib, data_in);
721 if (dexpr)
722 SET_DECL_DEBUG_EXPR (expr, dexpr);
727 /* Read all pointer fields in the TS_DECL_NON_COMMON structure of
728 EXPR from input block IB. DATA_IN contains tables and descriptors for the
729 file being read. */
731 static void
732 lto_input_ts_decl_non_common_tree_pointers (struct lto_input_block *ib,
733 struct data_in *data_in, tree expr)
735 if (TREE_CODE (expr) == TYPE_DECL)
736 DECL_ORIGINAL_TYPE (expr) = stream_read_tree (ib, data_in);
740 /* Read all pointer fields in the TS_DECL_WITH_VIS structure of EXPR
741 from input block IB. DATA_IN contains tables and descriptors for the
742 file being read. */
744 static void
745 lto_input_ts_decl_with_vis_tree_pointers (struct lto_input_block *ib,
746 struct data_in *data_in, tree expr)
748 tree id;
750 id = stream_read_tree (ib, data_in);
751 if (id)
753 gcc_assert (TREE_CODE (id) == IDENTIFIER_NODE);
754 SET_DECL_ASSEMBLER_NAME (expr, id);
759 /* Read all pointer fields in the TS_FIELD_DECL structure of EXPR from
760 input block IB. DATA_IN contains tables and descriptors for the
761 file being read. */
763 static void
764 lto_input_ts_field_decl_tree_pointers (struct lto_input_block *ib,
765 struct data_in *data_in, tree expr)
767 DECL_FIELD_OFFSET (expr) = stream_read_tree (ib, data_in);
768 DECL_BIT_FIELD_TYPE (expr) = stream_read_tree (ib, data_in);
769 DECL_BIT_FIELD_REPRESENTATIVE (expr) = stream_read_tree (ib, data_in);
770 DECL_FIELD_BIT_OFFSET (expr) = stream_read_tree (ib, data_in);
771 DECL_FCONTEXT (expr) = stream_read_tree (ib, data_in);
775 /* Read all pointer fields in the TS_FUNCTION_DECL structure of EXPR
776 from input block IB. DATA_IN contains tables and descriptors for the
777 file being read. */
779 static void
780 lto_input_ts_function_decl_tree_pointers (struct lto_input_block *ib,
781 struct data_in *data_in, tree expr)
783 DECL_VINDEX (expr) = stream_read_tree (ib, data_in);
784 /* DECL_STRUCT_FUNCTION is loaded on demand by cgraph_get_body. */
785 DECL_FUNCTION_PERSONALITY (expr) = stream_read_tree (ib, data_in);
786 #ifndef ACCEL_COMPILER
787 DECL_FUNCTION_SPECIFIC_TARGET (expr) = stream_read_tree (ib, data_in);
788 #endif
789 DECL_FUNCTION_SPECIFIC_OPTIMIZATION (expr) = stream_read_tree (ib, data_in);
790 #ifdef ACCEL_COMPILER
792 tree opts = DECL_FUNCTION_SPECIFIC_OPTIMIZATION (expr);
793 if (opts)
795 struct gcc_options tmp;
796 init_options_struct (&tmp, NULL);
797 cl_optimization_restore (&tmp, TREE_OPTIMIZATION (opts));
798 finish_options (&tmp, &global_options_set, UNKNOWN_LOCATION);
799 opts = build_optimization_node (&tmp);
800 finalize_options_struct (&tmp);
801 DECL_FUNCTION_SPECIFIC_OPTIMIZATION (expr) = opts;
804 #endif
806 /* If the file contains a function with an EH personality set,
807 then it was compiled with -fexceptions. In that case, initialize
808 the backend EH machinery. */
809 if (DECL_FUNCTION_PERSONALITY (expr))
810 lto_init_eh ();
814 /* Read all pointer fields in the TS_TYPE_COMMON structure of EXPR from
815 input block IB. DATA_IN contains tables and descriptors for the file
816 being read. */
818 static void
819 lto_input_ts_type_common_tree_pointers (struct lto_input_block *ib,
820 struct data_in *data_in, tree expr)
822 TYPE_SIZE (expr) = stream_read_tree (ib, data_in);
823 TYPE_SIZE_UNIT (expr) = stream_read_tree (ib, data_in);
824 TYPE_ATTRIBUTES (expr) = stream_read_tree (ib, data_in);
825 TYPE_NAME (expr) = stream_read_tree (ib, data_in);
826 /* Do not stream TYPE_POINTER_TO or TYPE_REFERENCE_TO. They will be
827 reconstructed during fixup. */
828 /* Do not stream TYPE_NEXT_VARIANT, we reconstruct the variant lists
829 during fixup. */
830 TYPE_MAIN_VARIANT (expr) = stream_read_tree (ib, data_in);
831 TYPE_CONTEXT (expr) = stream_read_tree (ib, data_in);
832 /* TYPE_CANONICAL gets re-computed during type merging. */
833 TYPE_CANONICAL (expr) = NULL_TREE;
834 TYPE_STUB_DECL (expr) = stream_read_tree (ib, data_in);
837 /* Read all pointer fields in the TS_TYPE_NON_COMMON structure of EXPR
838 from input block IB. DATA_IN contains tables and descriptors for the
839 file being read. */
841 static void
842 lto_input_ts_type_non_common_tree_pointers (struct lto_input_block *ib,
843 struct data_in *data_in,
844 tree expr)
846 if (TREE_CODE (expr) == ENUMERAL_TYPE)
847 TYPE_VALUES (expr) = stream_read_tree (ib, data_in);
848 else if (TREE_CODE (expr) == ARRAY_TYPE)
849 TYPE_DOMAIN (expr) = stream_read_tree (ib, data_in);
850 else if (RECORD_OR_UNION_TYPE_P (expr))
851 TYPE_FIELDS (expr) = streamer_read_chain (ib, data_in);
852 else if (TREE_CODE (expr) == FUNCTION_TYPE
853 || TREE_CODE (expr) == METHOD_TYPE)
854 TYPE_ARG_TYPES (expr) = stream_read_tree (ib, data_in);
856 if (!POINTER_TYPE_P (expr))
857 TYPE_MIN_VALUE_RAW (expr) = stream_read_tree (ib, data_in);
858 TYPE_MAX_VALUE_RAW (expr) = stream_read_tree (ib, data_in);
862 /* Read all pointer fields in the TS_LIST structure of EXPR from input
863 block IB. DATA_IN contains tables and descriptors for the
864 file being read. */
866 static void
867 lto_input_ts_list_tree_pointers (struct lto_input_block *ib,
868 struct data_in *data_in, tree expr)
870 TREE_PURPOSE (expr) = stream_read_tree (ib, data_in);
871 TREE_VALUE (expr) = stream_read_tree (ib, data_in);
872 TREE_CHAIN (expr) = stream_read_tree (ib, data_in);
876 /* Read all pointer fields in the TS_VEC structure of EXPR from input
877 block IB. DATA_IN contains tables and descriptors for the
878 file being read. */
880 static void
881 lto_input_ts_vec_tree_pointers (struct lto_input_block *ib,
882 struct data_in *data_in, tree expr)
884 int i;
886 /* Note that TREE_VEC_LENGTH was read by streamer_alloc_tree to
887 instantiate EXPR. */
888 for (i = 0; i < TREE_VEC_LENGTH (expr); i++)
889 TREE_VEC_ELT (expr, i) = stream_read_tree (ib, data_in);
893 /* Read all pointer fields in the TS_EXP structure of EXPR from input
894 block IB. DATA_IN contains tables and descriptors for the
895 file being read. */
898 static void
899 lto_input_ts_exp_tree_pointers (struct lto_input_block *ib,
900 struct data_in *data_in, tree expr)
902 int i;
903 tree block;
905 for (i = 0; i < TREE_OPERAND_LENGTH (expr); i++)
906 TREE_OPERAND (expr, i) = stream_read_tree (ib, data_in);
908 block = stream_read_tree (ib, data_in);
910 /* TODO: Block is stored in the locus information. It may make more sense to
911 to make it go via the location cache. */
912 if (block)
914 data_in->location_cache.apply_location_cache ();
915 TREE_SET_BLOCK (expr, block);
920 /* Read all pointer fields in the TS_BLOCK structure of EXPR from input
921 block IB. DATA_IN contains tables and descriptors for the
922 file being read. */
924 static void
925 lto_input_ts_block_tree_pointers (struct lto_input_block *ib,
926 struct data_in *data_in, tree expr)
928 BLOCK_VARS (expr) = streamer_read_chain (ib, data_in);
930 BLOCK_SUPERCONTEXT (expr) = stream_read_tree (ib, data_in);
932 /* Stream BLOCK_ABSTRACT_ORIGIN and BLOCK_SOURCE_LOCATION for
933 the limited cases we can handle - those that represent inlined
934 function scopes. For the rest them on the floor instead of ICEing in
935 dwarf2out.c. */
936 BLOCK_ABSTRACT_ORIGIN (expr) = stream_read_tree (ib, data_in);
937 /* Do not stream BLOCK_NONLOCALIZED_VARS. We cannot handle debug information
938 for early inlined BLOCKs so drop it on the floor instead of ICEing in
939 dwarf2out.c. */
941 /* BLOCK_FRAGMENT_ORIGIN and BLOCK_FRAGMENT_CHAIN is not live at LTO
942 streaming time. */
944 /* We re-compute BLOCK_SUBBLOCKS of our parent here instead
945 of streaming it. For non-BLOCK BLOCK_SUPERCONTEXTs we still
946 stream the child relationship explicitly. */
947 if (BLOCK_SUPERCONTEXT (expr)
948 && TREE_CODE (BLOCK_SUPERCONTEXT (expr)) == BLOCK)
950 BLOCK_CHAIN (expr) = BLOCK_SUBBLOCKS (BLOCK_SUPERCONTEXT (expr));
951 BLOCK_SUBBLOCKS (BLOCK_SUPERCONTEXT (expr)) = expr;
954 /* The global block is rooted at the TU decl. Hook it here to
955 avoid the need to stream in this block during WPA time. */
956 else if (BLOCK_SUPERCONTEXT (expr)
957 && TREE_CODE (BLOCK_SUPERCONTEXT (expr)) == TRANSLATION_UNIT_DECL)
958 DECL_INITIAL (BLOCK_SUPERCONTEXT (expr)) = expr;
960 /* The function-level block is connected at the time we read in
961 function bodies for the same reason. */
965 /* Read all pointer fields in the TS_BINFO structure of EXPR from input
966 block IB. DATA_IN contains tables and descriptors for the
967 file being read. */
969 static void
970 lto_input_ts_binfo_tree_pointers (struct lto_input_block *ib,
971 struct data_in *data_in, tree expr)
973 unsigned i;
974 tree t;
976 /* Note that the number of slots in EXPR was read in
977 streamer_alloc_tree when instantiating EXPR. However, the
978 vector is empty so we cannot rely on vec::length to know how many
979 elements to read. So, this list is emitted as a 0-terminated
980 list on the writer side. */
983 t = stream_read_tree (ib, data_in);
984 if (t)
985 BINFO_BASE_BINFOS (expr)->quick_push (t);
987 while (t);
989 BINFO_OFFSET (expr) = stream_read_tree (ib, data_in);
990 BINFO_VTABLE (expr) = stream_read_tree (ib, data_in);
991 BINFO_VPTR_FIELD (expr) = stream_read_tree (ib, data_in);
993 /* The vector of BINFO_BASE_ACCESSES is pre-allocated during
994 unpacking the bitfield section. */
995 for (i = 0; i < vec_safe_length (BINFO_BASE_ACCESSES (expr)); i++)
997 tree a = stream_read_tree (ib, data_in);
998 (*BINFO_BASE_ACCESSES (expr))[i] = a;
1000 /* Do not walk BINFO_INHERITANCE_CHAIN, BINFO_SUBVTT_INDEX
1001 and BINFO_VPTR_INDEX; these are used by C++ FE only. */
1005 /* Read all pointer fields in the TS_CONSTRUCTOR structure of EXPR from
1006 input block IB. DATA_IN contains tables and descriptors for the
1007 file being read. */
1009 static void
1010 lto_input_ts_constructor_tree_pointers (struct lto_input_block *ib,
1011 struct data_in *data_in, tree expr)
1013 unsigned i;
1015 for (i = 0; i < CONSTRUCTOR_NELTS (expr); i++)
1017 constructor_elt e;
1018 e.index = stream_read_tree (ib, data_in);
1019 e.value = stream_read_tree (ib, data_in);
1020 (*CONSTRUCTOR_ELTS (expr))[i] = e;
1025 /* Read all pointer fields in the TS_OMP_CLAUSE structure of EXPR from
1026 input block IB. DATA_IN contains tables and descriptors for the
1027 file being read. */
1029 static void
1030 lto_input_ts_omp_clause_tree_pointers (struct lto_input_block *ib,
1031 struct data_in *data_in, tree expr)
1033 int i;
1035 for (i = 0; i < omp_clause_num_ops[OMP_CLAUSE_CODE (expr)]; i++)
1036 OMP_CLAUSE_OPERAND (expr, i) = stream_read_tree (ib, data_in);
1037 OMP_CLAUSE_CHAIN (expr) = stream_read_tree (ib, data_in);
1041 /* Read all pointer fields in EXPR from input block IB. DATA_IN
1042 contains tables and descriptors for the file being read. */
1044 void
1045 streamer_read_tree_body (struct lto_input_block *ib, struct data_in *data_in,
1046 tree expr)
1048 enum tree_code code;
1050 code = TREE_CODE (expr);
1052 if (CODE_CONTAINS_STRUCT (code, TS_TYPED))
1053 lto_input_ts_common_tree_pointers (ib, data_in, expr);
1055 if (CODE_CONTAINS_STRUCT (code, TS_VECTOR))
1056 lto_input_ts_vector_tree_pointers (ib, data_in, expr);
1058 if (CODE_CONTAINS_STRUCT (code, TS_POLY_INT_CST))
1059 lto_input_ts_poly_tree_pointers (ib, data_in, expr);
1061 if (CODE_CONTAINS_STRUCT (code, TS_COMPLEX))
1062 lto_input_ts_complex_tree_pointers (ib, data_in, expr);
1064 if (CODE_CONTAINS_STRUCT (code, TS_DECL_MINIMAL))
1065 lto_input_ts_decl_minimal_tree_pointers (ib, data_in, expr);
1067 if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
1068 lto_input_ts_decl_common_tree_pointers (ib, data_in, expr);
1070 if (CODE_CONTAINS_STRUCT (code, TS_DECL_NON_COMMON))
1071 lto_input_ts_decl_non_common_tree_pointers (ib, data_in, expr);
1073 if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS))
1074 lto_input_ts_decl_with_vis_tree_pointers (ib, data_in, expr);
1076 if (CODE_CONTAINS_STRUCT (code, TS_FIELD_DECL))
1077 lto_input_ts_field_decl_tree_pointers (ib, data_in, expr);
1079 if (CODE_CONTAINS_STRUCT (code, TS_FUNCTION_DECL))
1080 lto_input_ts_function_decl_tree_pointers (ib, data_in, expr);
1082 if (CODE_CONTAINS_STRUCT (code, TS_TYPE_COMMON))
1083 lto_input_ts_type_common_tree_pointers (ib, data_in, expr);
1085 if (CODE_CONTAINS_STRUCT (code, TS_TYPE_NON_COMMON))
1086 lto_input_ts_type_non_common_tree_pointers (ib, data_in, expr);
1088 if (CODE_CONTAINS_STRUCT (code, TS_LIST))
1089 lto_input_ts_list_tree_pointers (ib, data_in, expr);
1091 if (CODE_CONTAINS_STRUCT (code, TS_VEC))
1092 lto_input_ts_vec_tree_pointers (ib, data_in, expr);
1094 if (CODE_CONTAINS_STRUCT (code, TS_EXP))
1095 lto_input_ts_exp_tree_pointers (ib, data_in, expr);
1097 if (CODE_CONTAINS_STRUCT (code, TS_BLOCK))
1098 lto_input_ts_block_tree_pointers (ib, data_in, expr);
1100 if (CODE_CONTAINS_STRUCT (code, TS_BINFO))
1101 lto_input_ts_binfo_tree_pointers (ib, data_in, expr);
1103 if (CODE_CONTAINS_STRUCT (code, TS_CONSTRUCTOR))
1104 lto_input_ts_constructor_tree_pointers (ib, data_in, expr);
1106 if (code == OMP_CLAUSE)
1107 lto_input_ts_omp_clause_tree_pointers (ib, data_in, expr);
1111 /* Read an index IX from input block IB and return the tree node at
1112 DATA_IN->FILE_DATA->GLOBALS_INDEX[IX]. */
1114 tree
1115 streamer_get_pickled_tree (struct lto_input_block *ib, struct data_in *data_in)
1117 unsigned HOST_WIDE_INT ix;
1118 tree result;
1119 enum LTO_tags expected_tag;
1121 ix = streamer_read_uhwi (ib);
1122 expected_tag = streamer_read_enum (ib, LTO_tags, LTO_NUM_TAGS);
1124 result = streamer_tree_cache_get_tree (data_in->reader_cache, ix);
1125 gcc_assert (result
1126 && TREE_CODE (result) == lto_tag_to_tree_code (expected_tag));
1128 return result;