1 /* Routines for reading trees from a file stream.
3 Copyright (C) 2011-2015 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
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
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/>. */
24 #include "coretypes.h"
29 #include "stringpool.h"
30 #include "tree-streamer.h"
34 #include "gomp-constants.h"
37 /* Read a STRING_CST from the string table in DATA_IN using input
41 streamer_read_string_cst (struct data_in
*data_in
, struct lto_input_block
*ib
)
46 ptr
= streamer_read_indexed_string (data_in
, ib
, &len
);
49 return build_string (len
, ptr
);
53 /* Read an IDENTIFIER from the string table in DATA_IN using input
57 input_identifier (struct data_in
*data_in
, struct lto_input_block
*ib
)
62 ptr
= streamer_read_indexed_string (data_in
, ib
, &len
);
65 return get_identifier_with_length (ptr
, len
);
69 /* Read a chain of tree nodes from input block IB. DATA_IN contains
70 tables and descriptors for the file being read. */
73 streamer_read_chain (struct lto_input_block
*ib
, struct data_in
*data_in
)
75 tree first
, prev
, curr
;
77 /* The chain is written as NULL terminated list of trees. */
78 first
= prev
= NULL_TREE
;
81 curr
= stream_read_tree (ib
, data_in
);
83 TREE_CHAIN (prev
) = curr
;
95 /* Unpack all the non-pointer fields of the TS_BASE structure of
96 expression EXPR from bitpack BP. */
99 unpack_ts_base_value_fields (struct bitpack_d
*bp
, tree expr
)
101 /* Note that the code for EXPR has already been unpacked to create EXPR in
102 streamer_alloc_tree. */
105 TREE_SIDE_EFFECTS (expr
) = (unsigned) bp_unpack_value (bp
, 1);
106 TREE_CONSTANT (expr
) = (unsigned) bp_unpack_value (bp
, 1);
107 TREE_READONLY (expr
) = (unsigned) bp_unpack_value (bp
, 1);
109 /* TREE_PUBLIC is used on types to indicate that the type
110 has a TYPE_CACHED_VALUES vector. This is not streamed out,
111 so we skip it here. */
112 TREE_PUBLIC (expr
) = (unsigned) bp_unpack_value (bp
, 1);
115 bp_unpack_value (bp
, 4);
116 TREE_ADDRESSABLE (expr
) = (unsigned) bp_unpack_value (bp
, 1);
117 TREE_THIS_VOLATILE (expr
) = (unsigned) bp_unpack_value (bp
, 1);
119 DECL_UNSIGNED (expr
) = (unsigned) bp_unpack_value (bp
, 1);
120 else if (TYPE_P (expr
))
121 TYPE_UNSIGNED (expr
) = (unsigned) bp_unpack_value (bp
, 1);
123 bp_unpack_value (bp
, 1);
124 TREE_ASM_WRITTEN (expr
) = (unsigned) bp_unpack_value (bp
, 1);
126 TYPE_ARTIFICIAL (expr
) = (unsigned) bp_unpack_value (bp
, 1);
128 TREE_NO_WARNING (expr
) = (unsigned) bp_unpack_value (bp
, 1);
129 TREE_NOTHROW (expr
) = (unsigned) bp_unpack_value (bp
, 1);
130 TREE_STATIC (expr
) = (unsigned) bp_unpack_value (bp
, 1);
131 if (TREE_CODE (expr
) != TREE_BINFO
)
132 TREE_PRIVATE (expr
) = (unsigned) bp_unpack_value (bp
, 1);
134 bp_unpack_value (bp
, 1);
135 TREE_PROTECTED (expr
) = (unsigned) bp_unpack_value (bp
, 1);
136 TREE_DEPRECATED (expr
) = (unsigned) bp_unpack_value (bp
, 1);
139 if (AGGREGATE_TYPE_P (expr
))
140 TYPE_REVERSE_STORAGE_ORDER (expr
) = (unsigned) bp_unpack_value (bp
, 1);
142 TYPE_SATURATING (expr
) = (unsigned) bp_unpack_value (bp
, 1);
143 TYPE_ADDR_SPACE (expr
) = (unsigned) bp_unpack_value (bp
, 8);
145 else if (TREE_CODE (expr
) == BIT_FIELD_REF
|| TREE_CODE (expr
) == MEM_REF
)
147 REF_REVERSE_STORAGE_ORDER (expr
) = (unsigned) bp_unpack_value (bp
, 1);
148 bp_unpack_value (bp
, 8);
150 else if (TREE_CODE (expr
) == SSA_NAME
)
152 SSA_NAME_IS_DEFAULT_DEF (expr
) = (unsigned) bp_unpack_value (bp
, 1);
153 bp_unpack_value (bp
, 8);
156 bp_unpack_value (bp
, 9);
160 /* Unpack all the non-pointer fields of the TS_INT_CST structure of
161 expression EXPR from bitpack BP. */
164 unpack_ts_int_cst_value_fields (struct bitpack_d
*bp
, tree expr
)
167 for (i
= 0; i
< TREE_INT_CST_EXT_NUNITS (expr
); i
++)
168 TREE_INT_CST_ELT (expr
, i
) = bp_unpack_var_len_int (bp
);
172 /* Unpack all the non-pointer fields of the TS_REAL_CST structure of
173 expression EXPR from bitpack BP. */
176 unpack_ts_real_cst_value_fields (struct bitpack_d
*bp
, tree expr
)
182 /* Clear all bits of the real value type so that we can later do
183 bitwise comparisons to see if two values are the same. */
184 memset (&r
, 0, sizeof r
);
185 r
.cl
= (unsigned) bp_unpack_value (bp
, 2);
186 r
.decimal
= (unsigned) bp_unpack_value (bp
, 1);
187 r
.sign
= (unsigned) bp_unpack_value (bp
, 1);
188 r
.signalling
= (unsigned) bp_unpack_value (bp
, 1);
189 r
.canonical
= (unsigned) bp_unpack_value (bp
, 1);
190 r
.uexp
= (unsigned) bp_unpack_value (bp
, EXP_BITS
);
191 for (i
= 0; i
< SIGSZ
; i
++)
192 r
.sig
[i
] = (unsigned long) bp_unpack_value (bp
, HOST_BITS_PER_LONG
);
194 rp
= ggc_alloc
<real_value
> ();
195 memcpy (rp
, &r
, sizeof (REAL_VALUE_TYPE
));
196 TREE_REAL_CST_PTR (expr
) = rp
;
200 /* Unpack all the non-pointer fields of the TS_FIXED_CST structure of
201 expression EXPR from bitpack BP. */
204 unpack_ts_fixed_cst_value_fields (struct bitpack_d
*bp
, tree expr
)
206 FIXED_VALUE_TYPE
*fp
= ggc_alloc
<fixed_value
> ();
207 fp
->mode
= bp_unpack_machine_mode (bp
);
208 fp
->data
.low
= bp_unpack_var_len_int (bp
);
209 fp
->data
.high
= bp_unpack_var_len_int (bp
);
210 TREE_FIXED_CST_PTR (expr
) = fp
;
213 /* Unpack all the non-pointer fields of the TS_DECL_COMMON structure
214 of expression EXPR from bitpack BP. */
217 unpack_ts_decl_common_value_fields (struct bitpack_d
*bp
, tree expr
)
219 DECL_MODE (expr
) = bp_unpack_machine_mode (bp
);
220 DECL_NONLOCAL (expr
) = (unsigned) bp_unpack_value (bp
, 1);
221 DECL_VIRTUAL_P (expr
) = (unsigned) bp_unpack_value (bp
, 1);
222 DECL_IGNORED_P (expr
) = (unsigned) bp_unpack_value (bp
, 1);
223 DECL_ABSTRACT_P (expr
) = (unsigned) bp_unpack_value (bp
, 1);
224 DECL_ARTIFICIAL (expr
) = (unsigned) bp_unpack_value (bp
, 1);
225 DECL_USER_ALIGN (expr
) = (unsigned) bp_unpack_value (bp
, 1);
226 DECL_PRESERVE_P (expr
) = (unsigned) bp_unpack_value (bp
, 1);
227 DECL_EXTERNAL (expr
) = (unsigned) bp_unpack_value (bp
, 1);
228 DECL_GIMPLE_REG_P (expr
) = (unsigned) bp_unpack_value (bp
, 1);
229 DECL_ALIGN (expr
) = (unsigned) bp_unpack_var_len_unsigned (bp
);
230 #ifdef ACCEL_COMPILER
231 if (DECL_ALIGN (expr
) > targetm
.absolute_biggest_alignment
)
232 DECL_ALIGN (expr
) = targetm
.absolute_biggest_alignment
;
234 if (TREE_CODE (expr
) == LABEL_DECL
)
236 EH_LANDING_PAD_NR (expr
) = (int) bp_unpack_var_len_unsigned (bp
);
238 /* Always assume an initial value of -1 for LABEL_DECL_UID to
239 force gimple_set_bb to recreate label_to_block_map. */
240 LABEL_DECL_UID (expr
) = -1;
243 if (TREE_CODE (expr
) == FIELD_DECL
)
245 DECL_PACKED (expr
) = (unsigned) bp_unpack_value (bp
, 1);
246 DECL_NONADDRESSABLE_P (expr
) = (unsigned) bp_unpack_value (bp
, 1);
247 expr
->decl_common
.off_align
= bp_unpack_value (bp
, 8);
250 if (TREE_CODE (expr
) == VAR_DECL
)
252 DECL_HAS_DEBUG_EXPR_P (expr
) = (unsigned) bp_unpack_value (bp
, 1);
253 DECL_NONLOCAL_FRAME (expr
) = (unsigned) bp_unpack_value (bp
, 1);
256 if (TREE_CODE (expr
) == RESULT_DECL
257 || TREE_CODE (expr
) == PARM_DECL
258 || TREE_CODE (expr
) == VAR_DECL
)
260 DECL_BY_REFERENCE (expr
) = (unsigned) bp_unpack_value (bp
, 1);
261 if (TREE_CODE (expr
) == VAR_DECL
262 || TREE_CODE (expr
) == PARM_DECL
)
263 DECL_HAS_VALUE_EXPR_P (expr
) = (unsigned) bp_unpack_value (bp
, 1);
268 /* Unpack all the non-pointer fields of the TS_DECL_WRTL structure
269 of expression EXPR from bitpack BP. */
272 unpack_ts_decl_wrtl_value_fields (struct bitpack_d
*bp
, tree expr
)
274 DECL_REGISTER (expr
) = (unsigned) bp_unpack_value (bp
, 1);
278 /* Unpack all the non-pointer fields of the TS_DECL_WITH_VIS structure
279 of expression EXPR from bitpack BP. */
282 unpack_ts_decl_with_vis_value_fields (struct bitpack_d
*bp
, tree expr
)
284 DECL_COMMON (expr
) = (unsigned) bp_unpack_value (bp
, 1);
285 DECL_DLLIMPORT_P (expr
) = (unsigned) bp_unpack_value (bp
, 1);
286 DECL_WEAK (expr
) = (unsigned) bp_unpack_value (bp
, 1);
287 DECL_SEEN_IN_BIND_EXPR_P (expr
) = (unsigned) bp_unpack_value (bp
, 1);
288 DECL_COMDAT (expr
) = (unsigned) bp_unpack_value (bp
, 1);
289 DECL_VISIBILITY (expr
) = (enum symbol_visibility
) bp_unpack_value (bp
, 2);
290 DECL_VISIBILITY_SPECIFIED (expr
) = (unsigned) bp_unpack_value (bp
, 1);
292 if (TREE_CODE (expr
) == VAR_DECL
)
294 DECL_HARD_REGISTER (expr
) = (unsigned) bp_unpack_value (bp
, 1);
295 DECL_IN_CONSTANT_POOL (expr
) = (unsigned) bp_unpack_value (bp
, 1);
298 if (TREE_CODE (expr
) == FUNCTION_DECL
)
300 DECL_FINAL_P (expr
) = (unsigned) bp_unpack_value (bp
, 1);
301 DECL_CXX_CONSTRUCTOR_P (expr
) = (unsigned) bp_unpack_value (bp
, 1);
302 DECL_CXX_DESTRUCTOR_P (expr
) = (unsigned) bp_unpack_value (bp
, 1);
307 /* Unpack all the non-pointer fields of the TS_FUNCTION_DECL structure
308 of expression EXPR from bitpack BP. */
311 unpack_ts_function_decl_value_fields (struct bitpack_d
*bp
, tree expr
)
313 DECL_BUILT_IN_CLASS (expr
) = bp_unpack_enum (bp
, built_in_class
,
315 DECL_STATIC_CONSTRUCTOR (expr
) = (unsigned) bp_unpack_value (bp
, 1);
316 DECL_STATIC_DESTRUCTOR (expr
) = (unsigned) bp_unpack_value (bp
, 1);
317 DECL_UNINLINABLE (expr
) = (unsigned) bp_unpack_value (bp
, 1);
318 DECL_POSSIBLY_INLINED (expr
) = (unsigned) bp_unpack_value (bp
, 1);
319 DECL_IS_NOVOPS (expr
) = (unsigned) bp_unpack_value (bp
, 1);
320 DECL_IS_RETURNS_TWICE (expr
) = (unsigned) bp_unpack_value (bp
, 1);
321 DECL_IS_MALLOC (expr
) = (unsigned) bp_unpack_value (bp
, 1);
322 DECL_IS_OPERATOR_NEW (expr
) = (unsigned) bp_unpack_value (bp
, 1);
323 DECL_DECLARED_INLINE_P (expr
) = (unsigned) bp_unpack_value (bp
, 1);
324 DECL_STATIC_CHAIN (expr
) = (unsigned) bp_unpack_value (bp
, 1);
325 DECL_NO_INLINE_WARNING_P (expr
) = (unsigned) bp_unpack_value (bp
, 1);
326 DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT (expr
)
327 = (unsigned) bp_unpack_value (bp
, 1);
328 DECL_NO_LIMIT_STACK (expr
) = (unsigned) bp_unpack_value (bp
, 1);
329 DECL_DISREGARD_INLINE_LIMITS (expr
) = (unsigned) bp_unpack_value (bp
, 1);
330 DECL_PURE_P (expr
) = (unsigned) bp_unpack_value (bp
, 1);
331 DECL_LOOPING_CONST_OR_PURE_P (expr
) = (unsigned) bp_unpack_value (bp
, 1);
332 if (DECL_BUILT_IN_CLASS (expr
) != NOT_BUILT_IN
)
334 DECL_FUNCTION_CODE (expr
) = (enum built_in_function
) bp_unpack_value (bp
,
336 if (DECL_BUILT_IN_CLASS (expr
) == BUILT_IN_NORMAL
337 && DECL_FUNCTION_CODE (expr
) >= END_BUILTINS
)
338 fatal_error (input_location
,
339 "machine independent builtin code out of range");
340 else if (DECL_BUILT_IN_CLASS (expr
) == BUILT_IN_MD
)
342 tree result
= targetm
.builtin_decl (DECL_FUNCTION_CODE (expr
), true);
343 if (!result
|| result
== error_mark_node
)
344 fatal_error (input_location
,
345 "target specific builtin not available");
351 /* Unpack all the non-pointer fields of the TS_TYPE_COMMON structure
352 of expression EXPR from bitpack BP. */
355 unpack_ts_type_common_value_fields (struct bitpack_d
*bp
, tree expr
)
359 mode
= bp_unpack_machine_mode (bp
);
360 SET_TYPE_MODE (expr
, mode
);
361 TYPE_STRING_FLAG (expr
) = (unsigned) bp_unpack_value (bp
, 1);
362 /* TYPE_NO_FORCE_BLK is private to stor-layout and need
364 TYPE_NEEDS_CONSTRUCTING (expr
) = (unsigned) bp_unpack_value (bp
, 1);
365 TYPE_PACKED (expr
) = (unsigned) bp_unpack_value (bp
, 1);
366 TYPE_RESTRICT (expr
) = (unsigned) bp_unpack_value (bp
, 1);
367 TYPE_USER_ALIGN (expr
) = (unsigned) bp_unpack_value (bp
, 1);
368 TYPE_READONLY (expr
) = (unsigned) bp_unpack_value (bp
, 1);
369 if (RECORD_OR_UNION_TYPE_P (expr
))
371 TYPE_TRANSPARENT_AGGR (expr
) = (unsigned) bp_unpack_value (bp
, 1);
372 TYPE_FINAL_P (expr
) = (unsigned) bp_unpack_value (bp
, 1);
374 else if (TREE_CODE (expr
) == ARRAY_TYPE
)
375 TYPE_NONALIASED_COMPONENT (expr
) = (unsigned) bp_unpack_value (bp
, 1);
376 TYPE_PRECISION (expr
) = bp_unpack_var_len_unsigned (bp
);
377 TYPE_ALIGN (expr
) = bp_unpack_var_len_unsigned (bp
);
378 #ifdef ACCEL_COMPILER
379 if (TYPE_ALIGN (expr
) > targetm
.absolute_biggest_alignment
)
380 TYPE_ALIGN (expr
) = targetm
.absolute_biggest_alignment
;
385 /* Unpack all the non-pointer fields of the TS_BLOCK structure
386 of expression EXPR from bitpack BP. */
389 unpack_ts_block_value_fields (struct data_in
*data_in
,
390 struct bitpack_d
*bp
, tree expr
)
392 BLOCK_ABSTRACT (expr
) = (unsigned) bp_unpack_value (bp
, 1);
393 /* BLOCK_NUMBER is recomputed. */
394 stream_input_location (&BLOCK_SOURCE_LOCATION (expr
), bp
, data_in
);
397 /* Unpack all the non-pointer fields of the TS_TRANSLATION_UNIT_DECL
398 structure of expression EXPR from bitpack BP. */
401 unpack_ts_translation_unit_decl_value_fields (struct data_in
*data_in
,
402 struct bitpack_d
*bp
, tree expr
)
404 TRANSLATION_UNIT_LANGUAGE (expr
) = xstrdup (bp_unpack_string (data_in
, bp
));
405 vec_safe_push (all_translation_units
, expr
);
409 /* Unpack all the non-pointer fields of the TS_OMP_CLAUSE
410 structure of expression EXPR from bitpack BP. */
413 unpack_ts_omp_clause_value_fields (struct data_in
*data_in
,
414 struct bitpack_d
*bp
, tree expr
)
416 stream_input_location (&OMP_CLAUSE_LOCATION (expr
), bp
, data_in
);
417 switch (OMP_CLAUSE_CODE (expr
))
419 case OMP_CLAUSE_DEFAULT
:
420 OMP_CLAUSE_DEFAULT_KIND (expr
)
421 = bp_unpack_enum (bp
, omp_clause_default_kind
,
422 OMP_CLAUSE_DEFAULT_LAST
);
424 case OMP_CLAUSE_SCHEDULE
:
425 OMP_CLAUSE_SCHEDULE_KIND (expr
)
426 = bp_unpack_enum (bp
, omp_clause_schedule_kind
,
427 OMP_CLAUSE_SCHEDULE_LAST
);
429 case OMP_CLAUSE_DEPEND
:
430 OMP_CLAUSE_DEPEND_KIND (expr
)
431 = bp_unpack_enum (bp
, omp_clause_depend_kind
, OMP_CLAUSE_DEPEND_LAST
);
434 OMP_CLAUSE_SET_MAP_KIND (expr
, bp_unpack_enum (bp
, gomp_map_kind
,
437 case OMP_CLAUSE_PROC_BIND
:
438 OMP_CLAUSE_PROC_BIND_KIND (expr
)
439 = bp_unpack_enum (bp
, omp_clause_proc_bind_kind
,
440 OMP_CLAUSE_PROC_BIND_LAST
);
442 case OMP_CLAUSE_REDUCTION
:
443 OMP_CLAUSE_REDUCTION_CODE (expr
)
444 = bp_unpack_enum (bp
, tree_code
, MAX_TREE_CODES
);
452 /* Read all the language-independent bitfield values for EXPR from IB.
453 Return the partially unpacked bitpack so the caller can unpack any other
454 bitfield values that the writer may have written. */
457 streamer_read_tree_bitfields (struct lto_input_block
*ib
,
458 struct data_in
*data_in
, tree expr
)
463 /* Read the bitpack of non-pointer values from IB. */
464 bp
= streamer_read_bitpack (ib
);
466 /* The first word in BP contains the code of the tree that we
467 are about to read. */
468 code
= (enum tree_code
) bp_unpack_value (&bp
, 16);
469 lto_tag_check (lto_tree_code_to_tag (code
),
470 lto_tree_code_to_tag (TREE_CODE (expr
)));
472 /* Note that all these functions are highly sensitive to changes in
473 the types and sizes of each of the fields being packed. */
474 unpack_ts_base_value_fields (&bp
, expr
);
476 if (CODE_CONTAINS_STRUCT (code
, TS_INT_CST
))
477 unpack_ts_int_cst_value_fields (&bp
, expr
);
479 if (CODE_CONTAINS_STRUCT (code
, TS_REAL_CST
))
480 unpack_ts_real_cst_value_fields (&bp
, expr
);
482 if (CODE_CONTAINS_STRUCT (code
, TS_FIXED_CST
))
483 unpack_ts_fixed_cst_value_fields (&bp
, expr
);
485 if (CODE_CONTAINS_STRUCT (code
, TS_DECL_MINIMAL
))
486 stream_input_location (&DECL_SOURCE_LOCATION (expr
), &bp
, data_in
);
488 if (CODE_CONTAINS_STRUCT (code
, TS_DECL_COMMON
))
489 unpack_ts_decl_common_value_fields (&bp
, expr
);
491 if (CODE_CONTAINS_STRUCT (code
, TS_DECL_WRTL
))
492 unpack_ts_decl_wrtl_value_fields (&bp
, expr
);
494 if (CODE_CONTAINS_STRUCT (code
, TS_DECL_WITH_VIS
))
495 unpack_ts_decl_with_vis_value_fields (&bp
, expr
);
497 if (CODE_CONTAINS_STRUCT (code
, TS_FUNCTION_DECL
))
498 unpack_ts_function_decl_value_fields (&bp
, expr
);
500 if (CODE_CONTAINS_STRUCT (code
, TS_TYPE_COMMON
))
501 unpack_ts_type_common_value_fields (&bp
, expr
);
503 if (CODE_CONTAINS_STRUCT (code
, TS_EXP
))
505 stream_input_location (&EXPR_CHECK (expr
)->exp
.locus
, &bp
, data_in
);
507 || code
== TARGET_MEM_REF
)
509 MR_DEPENDENCE_CLIQUE (expr
)
510 = (unsigned)bp_unpack_value (&bp
, sizeof (short) * 8);
511 if (MR_DEPENDENCE_CLIQUE (expr
) != 0)
512 MR_DEPENDENCE_BASE (expr
)
513 = (unsigned)bp_unpack_value (&bp
, sizeof (short) * 8);
517 if (CODE_CONTAINS_STRUCT (code
, TS_BLOCK
))
518 unpack_ts_block_value_fields (data_in
, &bp
, expr
);
520 if (CODE_CONTAINS_STRUCT (code
, TS_TRANSLATION_UNIT_DECL
))
521 unpack_ts_translation_unit_decl_value_fields (data_in
, &bp
, expr
);
523 if (CODE_CONTAINS_STRUCT (code
, TS_OPTIMIZATION
))
524 cl_optimization_stream_in (&bp
, TREE_OPTIMIZATION (expr
));
526 if (CODE_CONTAINS_STRUCT (code
, TS_BINFO
))
528 unsigned HOST_WIDE_INT length
= bp_unpack_var_len_unsigned (&bp
);
530 vec_safe_grow (BINFO_BASE_ACCESSES (expr
), length
);
533 if (CODE_CONTAINS_STRUCT (code
, TS_CONSTRUCTOR
))
535 unsigned HOST_WIDE_INT length
= bp_unpack_var_len_unsigned (&bp
);
537 vec_safe_grow (CONSTRUCTOR_ELTS (expr
), length
);
540 #ifndef ACCEL_COMPILER
541 if (CODE_CONTAINS_STRUCT (code
, TS_TARGET_OPTION
))
543 cl_target_option_stream_in (data_in
, &bp
, TREE_TARGET_OPTION (expr
));
544 if (targetm
.target_option
.post_stream_in
)
545 targetm
.target_option
.post_stream_in (TREE_TARGET_OPTION (expr
));
549 if (code
== OMP_CLAUSE
)
550 unpack_ts_omp_clause_value_fields (data_in
, &bp
, expr
);
554 /* Materialize a new tree from input block IB using descriptors in
555 DATA_IN. The code for the new tree should match TAG. Store in
556 *IX_P the index into the reader cache where the new tree is stored. */
559 streamer_alloc_tree (struct lto_input_block
*ib
, struct data_in
*data_in
,
564 #ifdef LTO_STREAMER_DEBUG
565 HOST_WIDE_INT orig_address_in_writer
;
570 #ifdef LTO_STREAMER_DEBUG
571 /* Read the word representing the memory address for the tree
572 as it was written by the writer. This is useful when
573 debugging differences between the writer and reader. */
574 orig_address_in_writer
= streamer_read_hwi (ib
);
575 gcc_assert ((intptr_t) orig_address_in_writer
== orig_address_in_writer
);
578 code
= lto_tag_to_tree_code (tag
);
580 /* We should never see an SSA_NAME tree. Only the version numbers of
581 SSA names are ever written out. See input_ssa_names. */
582 gcc_assert (code
!= SSA_NAME
);
584 /* Instantiate a new tree using the header data. */
585 if (CODE_CONTAINS_STRUCT (code
, TS_STRING
))
586 result
= streamer_read_string_cst (data_in
, ib
);
587 else if (CODE_CONTAINS_STRUCT (code
, TS_IDENTIFIER
))
588 result
= input_identifier (data_in
, ib
);
589 else if (CODE_CONTAINS_STRUCT (code
, TS_VEC
))
591 HOST_WIDE_INT len
= streamer_read_hwi (ib
);
592 result
= make_tree_vec (len
);
594 else if (CODE_CONTAINS_STRUCT (code
, TS_VECTOR
))
596 HOST_WIDE_INT len
= streamer_read_hwi (ib
);
597 result
= make_vector (len
);
599 else if (CODE_CONTAINS_STRUCT (code
, TS_BINFO
))
601 unsigned HOST_WIDE_INT len
= streamer_read_uhwi (ib
);
602 result
= make_tree_binfo (len
);
604 else if (CODE_CONTAINS_STRUCT (code
, TS_INT_CST
))
606 unsigned HOST_WIDE_INT len
= streamer_read_uhwi (ib
);
607 unsigned HOST_WIDE_INT ext_len
= streamer_read_uhwi (ib
);
608 result
= make_int_cst (len
, ext_len
);
610 else if (code
== CALL_EXPR
)
612 unsigned HOST_WIDE_INT nargs
= streamer_read_uhwi (ib
);
613 return build_vl_exp (CALL_EXPR
, nargs
+ 3);
615 else if (code
== OMP_CLAUSE
)
617 enum omp_clause_code subcode
618 = (enum omp_clause_code
) streamer_read_uhwi (ib
);
619 return build_omp_clause (UNKNOWN_LOCATION
, subcode
);
623 /* For all other nodes, materialize the tree with a raw
625 result
= make_node (code
);
628 #ifdef LTO_STREAMER_DEBUG
629 /* Store the original address of the tree as seen by the writer
630 in RESULT's aux field. This is useful when debugging streaming
631 problems. This way, a debugging session can be started on
632 both writer and reader with a breakpoint using this address
634 lto_orig_address_map (result
, (intptr_t) orig_address_in_writer
);
641 /* Read all pointer fields in the TS_COMMON structure of EXPR from input
642 block IB. DATA_IN contains tables and descriptors for the
647 lto_input_ts_common_tree_pointers (struct lto_input_block
*ib
,
648 struct data_in
*data_in
, tree expr
)
650 if (TREE_CODE (expr
) != IDENTIFIER_NODE
)
651 TREE_TYPE (expr
) = stream_read_tree (ib
, data_in
);
655 /* Read all pointer fields in the TS_VECTOR structure of EXPR from input
656 block IB. DATA_IN contains tables and descriptors for the
660 lto_input_ts_vector_tree_pointers (struct lto_input_block
*ib
,
661 struct data_in
*data_in
, tree expr
)
664 for (i
= 0; i
< VECTOR_CST_NELTS (expr
); ++i
)
665 VECTOR_CST_ELT (expr
, i
) = stream_read_tree (ib
, data_in
);
669 /* Read all pointer fields in the TS_COMPLEX structure of EXPR from input
670 block IB. DATA_IN contains tables and descriptors for the
674 lto_input_ts_complex_tree_pointers (struct lto_input_block
*ib
,
675 struct data_in
*data_in
, tree expr
)
677 TREE_REALPART (expr
) = stream_read_tree (ib
, data_in
);
678 TREE_IMAGPART (expr
) = stream_read_tree (ib
, data_in
);
682 /* Read all pointer fields in the TS_DECL_MINIMAL structure of EXPR
683 from input block IB. DATA_IN contains tables and descriptors for the
687 lto_input_ts_decl_minimal_tree_pointers (struct lto_input_block
*ib
,
688 struct data_in
*data_in
, tree expr
)
690 DECL_NAME (expr
) = stream_read_tree (ib
, data_in
);
691 DECL_CONTEXT (expr
) = stream_read_tree (ib
, data_in
);
695 /* Read all pointer fields in the TS_DECL_COMMON structure of EXPR from
696 input block IB. DATA_IN contains tables and descriptors for the
700 lto_input_ts_decl_common_tree_pointers (struct lto_input_block
*ib
,
701 struct data_in
*data_in
, tree expr
)
703 DECL_SIZE (expr
) = stream_read_tree (ib
, data_in
);
704 DECL_SIZE_UNIT (expr
) = stream_read_tree (ib
, data_in
);
705 DECL_ATTRIBUTES (expr
) = stream_read_tree (ib
, data_in
);
707 /* Do not stream DECL_ABSTRACT_ORIGIN. We cannot handle debug information
708 for early inlining so drop it on the floor instead of ICEing in
711 if ((TREE_CODE (expr
) == VAR_DECL
712 || TREE_CODE (expr
) == PARM_DECL
)
713 && DECL_HAS_VALUE_EXPR_P (expr
))
714 SET_DECL_VALUE_EXPR (expr
, stream_read_tree (ib
, data_in
));
716 if (TREE_CODE (expr
) == VAR_DECL
)
718 tree dexpr
= stream_read_tree (ib
, data_in
);
720 SET_DECL_DEBUG_EXPR (expr
, dexpr
);
725 /* Read all pointer fields in the TS_DECL_NON_COMMON structure of
726 EXPR from input block IB. DATA_IN contains tables and descriptors for the
730 lto_input_ts_decl_non_common_tree_pointers (struct lto_input_block
*ib
,
731 struct data_in
*data_in
, tree expr
)
733 if (TREE_CODE (expr
) == TYPE_DECL
)
734 DECL_ORIGINAL_TYPE (expr
) = stream_read_tree (ib
, data_in
);
738 /* Read all pointer fields in the TS_DECL_WITH_VIS structure of EXPR
739 from input block IB. DATA_IN contains tables and descriptors for the
743 lto_input_ts_decl_with_vis_tree_pointers (struct lto_input_block
*ib
,
744 struct data_in
*data_in
, tree expr
)
748 id
= stream_read_tree (ib
, data_in
);
751 gcc_assert (TREE_CODE (id
) == IDENTIFIER_NODE
);
752 SET_DECL_ASSEMBLER_NAME (expr
, id
);
757 /* Read all pointer fields in the TS_FIELD_DECL structure of EXPR from
758 input block IB. DATA_IN contains tables and descriptors for the
762 lto_input_ts_field_decl_tree_pointers (struct lto_input_block
*ib
,
763 struct data_in
*data_in
, tree expr
)
765 DECL_FIELD_OFFSET (expr
) = stream_read_tree (ib
, data_in
);
766 DECL_BIT_FIELD_TYPE (expr
) = stream_read_tree (ib
, data_in
);
767 DECL_BIT_FIELD_REPRESENTATIVE (expr
) = stream_read_tree (ib
, data_in
);
768 DECL_FIELD_BIT_OFFSET (expr
) = stream_read_tree (ib
, data_in
);
769 DECL_FCONTEXT (expr
) = stream_read_tree (ib
, data_in
);
773 /* Read all pointer fields in the TS_FUNCTION_DECL structure of EXPR
774 from input block IB. DATA_IN contains tables and descriptors for the
778 lto_input_ts_function_decl_tree_pointers (struct lto_input_block
*ib
,
779 struct data_in
*data_in
, tree expr
)
781 DECL_VINDEX (expr
) = stream_read_tree (ib
, data_in
);
782 /* DECL_STRUCT_FUNCTION is loaded on demand by cgraph_get_body. */
783 DECL_FUNCTION_PERSONALITY (expr
) = stream_read_tree (ib
, data_in
);
784 #ifndef ACCEL_COMPILER
785 DECL_FUNCTION_SPECIFIC_TARGET (expr
) = stream_read_tree (ib
, data_in
);
787 DECL_FUNCTION_SPECIFIC_OPTIMIZATION (expr
) = stream_read_tree (ib
, data_in
);
789 /* If the file contains a function with an EH personality set,
790 then it was compiled with -fexceptions. In that case, initialize
791 the backend EH machinery. */
792 if (DECL_FUNCTION_PERSONALITY (expr
))
797 /* Read all pointer fields in the TS_TYPE_COMMON structure of EXPR from
798 input block IB. DATA_IN contains tables and descriptors for the file
802 lto_input_ts_type_common_tree_pointers (struct lto_input_block
*ib
,
803 struct data_in
*data_in
, tree expr
)
805 TYPE_SIZE (expr
) = stream_read_tree (ib
, data_in
);
806 TYPE_SIZE_UNIT (expr
) = stream_read_tree (ib
, data_in
);
807 TYPE_ATTRIBUTES (expr
) = stream_read_tree (ib
, data_in
);
808 TYPE_NAME (expr
) = stream_read_tree (ib
, data_in
);
809 /* Do not stream TYPE_POINTER_TO or TYPE_REFERENCE_TO. They will be
810 reconstructed during fixup. */
811 /* Do not stream TYPE_NEXT_VARIANT, we reconstruct the variant lists
813 TYPE_MAIN_VARIANT (expr
) = stream_read_tree (ib
, data_in
);
814 TYPE_CONTEXT (expr
) = stream_read_tree (ib
, data_in
);
815 /* TYPE_CANONICAL gets re-computed during type merging. */
816 TYPE_CANONICAL (expr
) = NULL_TREE
;
817 TYPE_STUB_DECL (expr
) = stream_read_tree (ib
, data_in
);
820 /* Read all pointer fields in the TS_TYPE_NON_COMMON structure of EXPR
821 from input block IB. DATA_IN contains tables and descriptors for the
825 lto_input_ts_type_non_common_tree_pointers (struct lto_input_block
*ib
,
826 struct data_in
*data_in
,
829 if (TREE_CODE (expr
) == ENUMERAL_TYPE
)
830 TYPE_VALUES (expr
) = stream_read_tree (ib
, data_in
);
831 else if (TREE_CODE (expr
) == ARRAY_TYPE
)
832 TYPE_DOMAIN (expr
) = stream_read_tree (ib
, data_in
);
833 else if (RECORD_OR_UNION_TYPE_P (expr
))
834 TYPE_FIELDS (expr
) = streamer_read_chain (ib
, data_in
);
835 else if (TREE_CODE (expr
) == FUNCTION_TYPE
836 || TREE_CODE (expr
) == METHOD_TYPE
)
837 TYPE_ARG_TYPES (expr
) = stream_read_tree (ib
, data_in
);
839 if (!POINTER_TYPE_P (expr
))
840 TYPE_MINVAL (expr
) = stream_read_tree (ib
, data_in
);
841 TYPE_MAXVAL (expr
) = stream_read_tree (ib
, data_in
);
842 if (RECORD_OR_UNION_TYPE_P (expr
))
843 TYPE_BINFO (expr
) = stream_read_tree (ib
, data_in
);
847 /* Read all pointer fields in the TS_LIST structure of EXPR from input
848 block IB. DATA_IN contains tables and descriptors for the
852 lto_input_ts_list_tree_pointers (struct lto_input_block
*ib
,
853 struct data_in
*data_in
, tree expr
)
855 TREE_PURPOSE (expr
) = stream_read_tree (ib
, data_in
);
856 TREE_VALUE (expr
) = stream_read_tree (ib
, data_in
);
857 TREE_CHAIN (expr
) = stream_read_tree (ib
, data_in
);
861 /* Read all pointer fields in the TS_VEC structure of EXPR from input
862 block IB. DATA_IN contains tables and descriptors for the
866 lto_input_ts_vec_tree_pointers (struct lto_input_block
*ib
,
867 struct data_in
*data_in
, tree expr
)
871 /* Note that TREE_VEC_LENGTH was read by streamer_alloc_tree to
873 for (i
= 0; i
< TREE_VEC_LENGTH (expr
); i
++)
874 TREE_VEC_ELT (expr
, i
) = stream_read_tree (ib
, data_in
);
878 /* Read all pointer fields in the TS_EXP structure of EXPR from input
879 block IB. DATA_IN contains tables and descriptors for the
884 lto_input_ts_exp_tree_pointers (struct lto_input_block
*ib
,
885 struct data_in
*data_in
, tree expr
)
890 for (i
= 0; i
< TREE_OPERAND_LENGTH (expr
); i
++)
891 TREE_OPERAND (expr
, i
) = stream_read_tree (ib
, data_in
);
893 block
= stream_read_tree (ib
, data_in
);
895 /* TODO: Block is stored in the locus information. It may make more sense to
896 to make it go via the location cache. */
899 data_in
->location_cache
.apply_location_cache ();
900 TREE_SET_BLOCK (expr
, block
);
905 /* Read all pointer fields in the TS_BLOCK structure of EXPR from input
906 block IB. DATA_IN contains tables and descriptors for the
910 lto_input_ts_block_tree_pointers (struct lto_input_block
*ib
,
911 struct data_in
*data_in
, tree expr
)
913 BLOCK_VARS (expr
) = streamer_read_chain (ib
, data_in
);
915 BLOCK_SUPERCONTEXT (expr
) = stream_read_tree (ib
, data_in
);
917 /* Stream BLOCK_ABSTRACT_ORIGIN and BLOCK_SOURCE_LOCATION for
918 the limited cases we can handle - those that represent inlined
919 function scopes. For the rest them on the floor instead of ICEing in
921 BLOCK_ABSTRACT_ORIGIN (expr
) = stream_read_tree (ib
, data_in
);
922 /* Do not stream BLOCK_NONLOCALIZED_VARS. We cannot handle debug information
923 for early inlined BLOCKs so drop it on the floor instead of ICEing in
926 /* BLOCK_FRAGMENT_ORIGIN and BLOCK_FRAGMENT_CHAIN is not live at LTO
929 /* We re-compute BLOCK_SUBBLOCKS of our parent here instead
930 of streaming it. For non-BLOCK BLOCK_SUPERCONTEXTs we still
931 stream the child relationship explicitly. */
932 if (BLOCK_SUPERCONTEXT (expr
)
933 && TREE_CODE (BLOCK_SUPERCONTEXT (expr
)) == BLOCK
)
935 BLOCK_CHAIN (expr
) = BLOCK_SUBBLOCKS (BLOCK_SUPERCONTEXT (expr
));
936 BLOCK_SUBBLOCKS (BLOCK_SUPERCONTEXT (expr
)) = expr
;
939 /* The global block is rooted at the TU decl. Hook it here to
940 avoid the need to stream in this block during WPA time. */
941 else if (BLOCK_SUPERCONTEXT (expr
)
942 && TREE_CODE (BLOCK_SUPERCONTEXT (expr
)) == TRANSLATION_UNIT_DECL
)
943 DECL_INITIAL (BLOCK_SUPERCONTEXT (expr
)) = expr
;
945 /* The function-level block is connected at the time we read in
946 function bodies for the same reason. */
950 /* Read all pointer fields in the TS_BINFO structure of EXPR from input
951 block IB. DATA_IN contains tables and descriptors for the
955 lto_input_ts_binfo_tree_pointers (struct lto_input_block
*ib
,
956 struct data_in
*data_in
, tree expr
)
961 /* Note that the number of slots in EXPR was read in
962 streamer_alloc_tree when instantiating EXPR. However, the
963 vector is empty so we cannot rely on vec::length to know how many
964 elements to read. So, this list is emitted as a 0-terminated
965 list on the writer side. */
968 t
= stream_read_tree (ib
, data_in
);
970 BINFO_BASE_BINFOS (expr
)->quick_push (t
);
974 BINFO_OFFSET (expr
) = stream_read_tree (ib
, data_in
);
975 BINFO_VTABLE (expr
) = stream_read_tree (ib
, data_in
);
976 BINFO_VPTR_FIELD (expr
) = stream_read_tree (ib
, data_in
);
978 /* The vector of BINFO_BASE_ACCESSES is pre-allocated during
979 unpacking the bitfield section. */
980 for (i
= 0; i
< vec_safe_length (BINFO_BASE_ACCESSES (expr
)); i
++)
982 tree a
= stream_read_tree (ib
, data_in
);
983 (*BINFO_BASE_ACCESSES (expr
))[i
] = a
;
985 /* Do not walk BINFO_INHERITANCE_CHAIN, BINFO_SUBVTT_INDEX
986 and BINFO_VPTR_INDEX; these are used by C++ FE only. */
990 /* Read all pointer fields in the TS_CONSTRUCTOR structure of EXPR from
991 input block IB. DATA_IN contains tables and descriptors for the
995 lto_input_ts_constructor_tree_pointers (struct lto_input_block
*ib
,
996 struct data_in
*data_in
, tree expr
)
1000 for (i
= 0; i
< CONSTRUCTOR_NELTS (expr
); i
++)
1003 e
.index
= stream_read_tree (ib
, data_in
);
1004 e
.value
= stream_read_tree (ib
, data_in
);
1005 (*CONSTRUCTOR_ELTS (expr
))[i
] = e
;
1010 /* Read all pointer fields in the TS_OMP_CLAUSE structure of EXPR from
1011 input block IB. DATA_IN contains tables and descriptors for the
1015 lto_input_ts_omp_clause_tree_pointers (struct lto_input_block
*ib
,
1016 struct data_in
*data_in
, tree expr
)
1020 for (i
= 0; i
< omp_clause_num_ops
[OMP_CLAUSE_CODE (expr
)]; i
++)
1021 OMP_CLAUSE_OPERAND (expr
, i
) = stream_read_tree (ib
, data_in
);
1022 OMP_CLAUSE_CHAIN (expr
) = stream_read_tree (ib
, data_in
);
1026 /* Read all pointer fields in EXPR from input block IB. DATA_IN
1027 contains tables and descriptors for the file being read. */
1030 streamer_read_tree_body (struct lto_input_block
*ib
, struct data_in
*data_in
,
1033 enum tree_code code
;
1035 code
= TREE_CODE (expr
);
1037 if (CODE_CONTAINS_STRUCT (code
, TS_TYPED
))
1038 lto_input_ts_common_tree_pointers (ib
, data_in
, expr
);
1040 if (CODE_CONTAINS_STRUCT (code
, TS_VECTOR
))
1041 lto_input_ts_vector_tree_pointers (ib
, data_in
, expr
);
1043 if (CODE_CONTAINS_STRUCT (code
, TS_COMPLEX
))
1044 lto_input_ts_complex_tree_pointers (ib
, data_in
, expr
);
1046 if (CODE_CONTAINS_STRUCT (code
, TS_DECL_MINIMAL
))
1047 lto_input_ts_decl_minimal_tree_pointers (ib
, data_in
, expr
);
1049 if (CODE_CONTAINS_STRUCT (code
, TS_DECL_COMMON
))
1050 lto_input_ts_decl_common_tree_pointers (ib
, data_in
, expr
);
1052 if (CODE_CONTAINS_STRUCT (code
, TS_DECL_NON_COMMON
))
1053 lto_input_ts_decl_non_common_tree_pointers (ib
, data_in
, expr
);
1055 if (CODE_CONTAINS_STRUCT (code
, TS_DECL_WITH_VIS
))
1056 lto_input_ts_decl_with_vis_tree_pointers (ib
, data_in
, expr
);
1058 if (CODE_CONTAINS_STRUCT (code
, TS_FIELD_DECL
))
1059 lto_input_ts_field_decl_tree_pointers (ib
, data_in
, expr
);
1061 if (CODE_CONTAINS_STRUCT (code
, TS_FUNCTION_DECL
))
1062 lto_input_ts_function_decl_tree_pointers (ib
, data_in
, expr
);
1064 if (CODE_CONTAINS_STRUCT (code
, TS_TYPE_COMMON
))
1065 lto_input_ts_type_common_tree_pointers (ib
, data_in
, expr
);
1067 if (CODE_CONTAINS_STRUCT (code
, TS_TYPE_NON_COMMON
))
1068 lto_input_ts_type_non_common_tree_pointers (ib
, data_in
, expr
);
1070 if (CODE_CONTAINS_STRUCT (code
, TS_LIST
))
1071 lto_input_ts_list_tree_pointers (ib
, data_in
, expr
);
1073 if (CODE_CONTAINS_STRUCT (code
, TS_VEC
))
1074 lto_input_ts_vec_tree_pointers (ib
, data_in
, expr
);
1076 if (CODE_CONTAINS_STRUCT (code
, TS_EXP
))
1077 lto_input_ts_exp_tree_pointers (ib
, data_in
, expr
);
1079 if (CODE_CONTAINS_STRUCT (code
, TS_BLOCK
))
1080 lto_input_ts_block_tree_pointers (ib
, data_in
, expr
);
1082 if (CODE_CONTAINS_STRUCT (code
, TS_BINFO
))
1083 lto_input_ts_binfo_tree_pointers (ib
, data_in
, expr
);
1085 if (CODE_CONTAINS_STRUCT (code
, TS_CONSTRUCTOR
))
1086 lto_input_ts_constructor_tree_pointers (ib
, data_in
, expr
);
1088 if (code
== OMP_CLAUSE
)
1089 lto_input_ts_omp_clause_tree_pointers (ib
, data_in
, expr
);
1093 /* Read an index IX from input block IB and return the tree node at
1094 DATA_IN->FILE_DATA->GLOBALS_INDEX[IX]. */
1097 streamer_get_pickled_tree (struct lto_input_block
*ib
, struct data_in
*data_in
)
1099 unsigned HOST_WIDE_INT ix
;
1101 enum LTO_tags expected_tag
;
1103 ix
= streamer_read_uhwi (ib
);
1104 expected_tag
= streamer_read_enum (ib
, LTO_tags
, LTO_NUM_TAGS
);
1106 result
= streamer_tree_cache_get_tree (data_in
->reader_cache
, ix
);
1108 && TREE_CODE (result
) == lto_tag_to_tree_code (expected_tag
));
1114 /* Read a code and class from input block IB and return the
1115 corresponding builtin. DATA_IN is as in stream_read_tree. */
1118 streamer_get_builtin_tree (struct lto_input_block
*ib
, struct data_in
*data_in
)
1120 enum built_in_class fclass
;
1121 enum built_in_function fcode
;
1122 const char *asmname
;
1125 fclass
= streamer_read_enum (ib
, built_in_class
, BUILT_IN_LAST
);
1126 gcc_assert (fclass
== BUILT_IN_NORMAL
|| fclass
== BUILT_IN_MD
);
1128 fcode
= (enum built_in_function
) streamer_read_uhwi (ib
);
1130 if (fclass
== BUILT_IN_NORMAL
)
1132 if (fcode
>= END_BUILTINS
)
1133 fatal_error (input_location
,
1134 "machine independent builtin code out of range");
1135 result
= builtin_decl_explicit (fcode
);
1137 && fcode
> BEGIN_CHKP_BUILTINS
1138 && fcode
< END_CHKP_BUILTINS
)
1140 fcode
= (enum built_in_function
) (fcode
- BEGIN_CHKP_BUILTINS
- 1);
1141 result
= builtin_decl_explicit (fcode
);
1142 result
= chkp_maybe_clone_builtin_fndecl (result
);
1144 gcc_assert (result
);
1146 else if (fclass
== BUILT_IN_MD
)
1148 result
= targetm
.builtin_decl (fcode
, true);
1149 if (!result
|| result
== error_mark_node
)
1150 fatal_error (input_location
, "target specific builtin not available");
1155 asmname
= streamer_read_string (data_in
, ib
);
1157 set_builtin_user_assembler_name (result
, asmname
);
1159 streamer_tree_cache_append (data_in
->reader_cache
, result
, 0);