1 /* Routines for reading trees from a file stream.
3 Copyright (C) 2011-2017 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"
35 #include "stringpool.h"
41 /* Read a STRING_CST from the string table in DATA_IN using input
45 streamer_read_string_cst (struct data_in
*data_in
, struct lto_input_block
*ib
)
50 ptr
= streamer_read_indexed_string (data_in
, ib
, &len
);
53 return build_string (len
, ptr
);
57 /* Read an IDENTIFIER from the string table in DATA_IN using input
61 input_identifier (struct data_in
*data_in
, struct lto_input_block
*ib
)
66 ptr
= streamer_read_indexed_string (data_in
, ib
, &len
);
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. */
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
);
87 TREE_CHAIN (prev
) = curr
;
99 /* Unpack all the non-pointer fields of the TS_BASE structure of
100 expression EXPR from bitpack BP. */
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. */
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);
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);
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);
130 bp_unpack_value (bp
, 1);
131 TREE_ASM_WRITTEN (expr
) = (unsigned) bp_unpack_value (bp
, 1);
133 TYPE_ARTIFICIAL (expr
) = (unsigned) bp_unpack_value (bp
, 1);
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);
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);
146 if (AGGREGATE_TYPE_P (expr
))
147 TYPE_REVERSE_STORAGE_ORDER (expr
) = (unsigned) bp_unpack_value (bp
, 1);
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);
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. */
171 unpack_ts_int_cst_value_fields (struct bitpack_d
*bp
, tree expr
)
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. */
183 unpack_ts_real_cst_value_fields (struct bitpack_d
*bp
, tree expr
)
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. */
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
= 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. */
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
);
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 expr
->decl_common
.off_align
= bp_unpack_value (bp
, 8);
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
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. */
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. */
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);
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. */
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
,
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
,
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. */
361 unpack_ts_type_common_value_fields (struct bitpack_d
*bp
, tree expr
)
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
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_PRECISION (expr
) = bp_unpack_var_len_unsigned (bp
);
385 SET_TYPE_ALIGN (expr
, bp_unpack_var_len_unsigned (bp
));
386 #ifdef ACCEL_COMPILER
387 if (TYPE_ALIGN (expr
) > targetm
.absolute_biggest_alignment
)
388 SET_TYPE_ALIGN (expr
, targetm
.absolute_biggest_alignment
);
393 /* Unpack all the non-pointer fields of the TS_BLOCK structure
394 of expression EXPR from bitpack BP. */
397 unpack_ts_block_value_fields (struct data_in
*data_in
,
398 struct bitpack_d
*bp
, tree expr
)
400 BLOCK_ABSTRACT (expr
) = (unsigned) bp_unpack_value (bp
, 1);
401 /* BLOCK_NUMBER is recomputed. */
402 stream_input_location (&BLOCK_SOURCE_LOCATION (expr
), bp
, data_in
);
405 /* Unpack all the non-pointer fields of the TS_TRANSLATION_UNIT_DECL
406 structure of expression EXPR from bitpack BP. */
409 unpack_ts_translation_unit_decl_value_fields (struct data_in
*data_in
,
410 struct bitpack_d
*bp
, tree expr
)
412 TRANSLATION_UNIT_LANGUAGE (expr
) = xstrdup (bp_unpack_string (data_in
, bp
));
413 vec_safe_push (all_translation_units
, expr
);
417 /* Unpack all the non-pointer fields of the TS_OMP_CLAUSE
418 structure of expression EXPR from bitpack BP. */
421 unpack_ts_omp_clause_value_fields (struct data_in
*data_in
,
422 struct bitpack_d
*bp
, tree expr
)
424 stream_input_location (&OMP_CLAUSE_LOCATION (expr
), bp
, data_in
);
425 switch (OMP_CLAUSE_CODE (expr
))
427 case OMP_CLAUSE_DEFAULT
:
428 OMP_CLAUSE_DEFAULT_KIND (expr
)
429 = bp_unpack_enum (bp
, omp_clause_default_kind
,
430 OMP_CLAUSE_DEFAULT_LAST
);
432 case OMP_CLAUSE_SCHEDULE
:
433 OMP_CLAUSE_SCHEDULE_KIND (expr
)
434 = bp_unpack_enum (bp
, omp_clause_schedule_kind
,
435 OMP_CLAUSE_SCHEDULE_LAST
);
437 case OMP_CLAUSE_DEPEND
:
438 OMP_CLAUSE_DEPEND_KIND (expr
)
439 = bp_unpack_enum (bp
, omp_clause_depend_kind
, OMP_CLAUSE_DEPEND_LAST
);
442 OMP_CLAUSE_SET_MAP_KIND (expr
, bp_unpack_enum (bp
, gomp_map_kind
,
445 case OMP_CLAUSE_PROC_BIND
:
446 OMP_CLAUSE_PROC_BIND_KIND (expr
)
447 = bp_unpack_enum (bp
, omp_clause_proc_bind_kind
,
448 OMP_CLAUSE_PROC_BIND_LAST
);
450 case OMP_CLAUSE_REDUCTION
:
451 OMP_CLAUSE_REDUCTION_CODE (expr
)
452 = bp_unpack_enum (bp
, tree_code
, MAX_TREE_CODES
);
460 /* Read all the language-independent bitfield values for EXPR from IB.
461 Return the partially unpacked bitpack so the caller can unpack any other
462 bitfield values that the writer may have written. */
465 streamer_read_tree_bitfields (struct lto_input_block
*ib
,
466 struct data_in
*data_in
, tree expr
)
471 /* Read the bitpack of non-pointer values from IB. */
472 bp
= streamer_read_bitpack (ib
);
474 /* The first word in BP contains the code of the tree that we
475 are about to read. */
476 code
= (enum tree_code
) bp_unpack_value (&bp
, 16);
477 lto_tag_check (lto_tree_code_to_tag (code
),
478 lto_tree_code_to_tag (TREE_CODE (expr
)));
480 /* Note that all these functions are highly sensitive to changes in
481 the types and sizes of each of the fields being packed. */
482 unpack_ts_base_value_fields (&bp
, expr
);
484 if (CODE_CONTAINS_STRUCT (code
, TS_INT_CST
))
485 unpack_ts_int_cst_value_fields (&bp
, expr
);
487 if (CODE_CONTAINS_STRUCT (code
, TS_REAL_CST
))
488 unpack_ts_real_cst_value_fields (&bp
, expr
);
490 if (CODE_CONTAINS_STRUCT (code
, TS_FIXED_CST
))
491 unpack_ts_fixed_cst_value_fields (&bp
, expr
);
493 if (CODE_CONTAINS_STRUCT (code
, TS_DECL_MINIMAL
))
494 stream_input_location (&DECL_SOURCE_LOCATION (expr
), &bp
, data_in
);
496 if (CODE_CONTAINS_STRUCT (code
, TS_DECL_COMMON
))
497 unpack_ts_decl_common_value_fields (&bp
, expr
);
499 if (CODE_CONTAINS_STRUCT (code
, TS_DECL_WRTL
))
500 unpack_ts_decl_wrtl_value_fields (&bp
, expr
);
502 if (CODE_CONTAINS_STRUCT (code
, TS_DECL_WITH_VIS
))
503 unpack_ts_decl_with_vis_value_fields (&bp
, expr
);
505 if (CODE_CONTAINS_STRUCT (code
, TS_FUNCTION_DECL
))
506 unpack_ts_function_decl_value_fields (&bp
, expr
);
508 if (CODE_CONTAINS_STRUCT (code
, TS_TYPE_COMMON
))
509 unpack_ts_type_common_value_fields (&bp
, expr
);
511 if (CODE_CONTAINS_STRUCT (code
, TS_EXP
))
513 stream_input_location (&EXPR_CHECK (expr
)->exp
.locus
, &bp
, data_in
);
515 || code
== TARGET_MEM_REF
)
517 MR_DEPENDENCE_CLIQUE (expr
)
518 = (unsigned)bp_unpack_value (&bp
, sizeof (short) * 8);
519 if (MR_DEPENDENCE_CLIQUE (expr
) != 0)
520 MR_DEPENDENCE_BASE (expr
)
521 = (unsigned)bp_unpack_value (&bp
, sizeof (short) * 8);
525 if (CODE_CONTAINS_STRUCT (code
, TS_BLOCK
))
526 unpack_ts_block_value_fields (data_in
, &bp
, expr
);
528 if (CODE_CONTAINS_STRUCT (code
, TS_TRANSLATION_UNIT_DECL
))
529 unpack_ts_translation_unit_decl_value_fields (data_in
, &bp
, expr
);
531 if (CODE_CONTAINS_STRUCT (code
, TS_OPTIMIZATION
))
532 cl_optimization_stream_in (&bp
, TREE_OPTIMIZATION (expr
));
534 if (CODE_CONTAINS_STRUCT (code
, TS_BINFO
))
536 unsigned HOST_WIDE_INT length
= bp_unpack_var_len_unsigned (&bp
);
538 vec_safe_grow (BINFO_BASE_ACCESSES (expr
), length
);
541 if (CODE_CONTAINS_STRUCT (code
, TS_CONSTRUCTOR
))
543 unsigned HOST_WIDE_INT length
= bp_unpack_var_len_unsigned (&bp
);
545 vec_safe_grow (CONSTRUCTOR_ELTS (expr
), length
);
548 #ifndef ACCEL_COMPILER
549 if (CODE_CONTAINS_STRUCT (code
, TS_TARGET_OPTION
))
551 cl_target_option_stream_in (data_in
, &bp
, TREE_TARGET_OPTION (expr
));
552 if (targetm
.target_option
.post_stream_in
)
553 targetm
.target_option
.post_stream_in (TREE_TARGET_OPTION (expr
));
557 if (code
== OMP_CLAUSE
)
558 unpack_ts_omp_clause_value_fields (data_in
, &bp
, expr
);
562 /* Materialize a new tree from input block IB using descriptors in
563 DATA_IN. The code for the new tree should match TAG. Store in
564 *IX_P the index into the reader cache where the new tree is stored. */
567 streamer_alloc_tree (struct lto_input_block
*ib
, struct data_in
*data_in
,
575 code
= lto_tag_to_tree_code (tag
);
577 /* We should never see an SSA_NAME tree. Only the version numbers of
578 SSA names are ever written out. See input_ssa_names. */
579 gcc_assert (code
!= SSA_NAME
);
581 /* Instantiate a new tree using the header data. */
582 if (CODE_CONTAINS_STRUCT (code
, TS_STRING
))
583 result
= streamer_read_string_cst (data_in
, ib
);
584 else if (CODE_CONTAINS_STRUCT (code
, TS_IDENTIFIER
))
585 result
= input_identifier (data_in
, ib
);
586 else if (CODE_CONTAINS_STRUCT (code
, TS_VEC
))
588 HOST_WIDE_INT len
= streamer_read_hwi (ib
);
589 result
= make_tree_vec (len
);
591 else if (CODE_CONTAINS_STRUCT (code
, TS_VECTOR
))
593 HOST_WIDE_INT len
= streamer_read_hwi (ib
);
594 result
= make_vector (len
);
596 else if (CODE_CONTAINS_STRUCT (code
, TS_BINFO
))
598 unsigned HOST_WIDE_INT len
= streamer_read_uhwi (ib
);
599 result
= make_tree_binfo (len
);
601 else if (CODE_CONTAINS_STRUCT (code
, TS_INT_CST
))
603 unsigned HOST_WIDE_INT len
= streamer_read_uhwi (ib
);
604 unsigned HOST_WIDE_INT ext_len
= streamer_read_uhwi (ib
);
605 result
= make_int_cst (len
, ext_len
);
607 else if (code
== CALL_EXPR
)
609 unsigned HOST_WIDE_INT nargs
= streamer_read_uhwi (ib
);
610 return build_vl_exp (CALL_EXPR
, nargs
+ 3);
612 else if (code
== OMP_CLAUSE
)
614 enum omp_clause_code subcode
615 = (enum omp_clause_code
) streamer_read_uhwi (ib
);
616 return build_omp_clause (UNKNOWN_LOCATION
, subcode
);
620 /* For all other nodes, materialize the tree with a raw
622 result
= make_node (code
);
629 /* Read all pointer fields in the TS_COMMON structure of EXPR from input
630 block IB. DATA_IN contains tables and descriptors for the
635 lto_input_ts_common_tree_pointers (struct lto_input_block
*ib
,
636 struct data_in
*data_in
, tree expr
)
638 if (TREE_CODE (expr
) != IDENTIFIER_NODE
)
639 TREE_TYPE (expr
) = stream_read_tree (ib
, data_in
);
643 /* Read all pointer fields in the TS_VECTOR structure of EXPR from input
644 block IB. DATA_IN contains tables and descriptors for the
648 lto_input_ts_vector_tree_pointers (struct lto_input_block
*ib
,
649 struct data_in
*data_in
, tree expr
)
652 for (i
= 0; i
< VECTOR_CST_NELTS (expr
); ++i
)
653 VECTOR_CST_ELT (expr
, i
) = stream_read_tree (ib
, data_in
);
657 /* Read all pointer fields in the TS_COMPLEX structure of EXPR from input
658 block IB. DATA_IN contains tables and descriptors for the
662 lto_input_ts_complex_tree_pointers (struct lto_input_block
*ib
,
663 struct data_in
*data_in
, tree expr
)
665 TREE_REALPART (expr
) = stream_read_tree (ib
, data_in
);
666 TREE_IMAGPART (expr
) = stream_read_tree (ib
, data_in
);
670 /* Read all pointer fields in the TS_DECL_MINIMAL structure of EXPR
671 from input block IB. DATA_IN contains tables and descriptors for the
675 lto_input_ts_decl_minimal_tree_pointers (struct lto_input_block
*ib
,
676 struct data_in
*data_in
, tree expr
)
678 DECL_NAME (expr
) = stream_read_tree (ib
, data_in
);
679 DECL_CONTEXT (expr
) = stream_read_tree (ib
, data_in
);
683 /* Read all pointer fields in the TS_DECL_COMMON structure of EXPR from
684 input block IB. DATA_IN contains tables and descriptors for the
688 lto_input_ts_decl_common_tree_pointers (struct lto_input_block
*ib
,
689 struct data_in
*data_in
, tree expr
)
691 DECL_SIZE (expr
) = stream_read_tree (ib
, data_in
);
692 DECL_SIZE_UNIT (expr
) = stream_read_tree (ib
, data_in
);
693 DECL_ATTRIBUTES (expr
) = stream_read_tree (ib
, data_in
);
695 /* Do not stream DECL_ABSTRACT_ORIGIN. We cannot handle debug information
696 for early inlining so drop it on the floor instead of ICEing in
699 if ((VAR_P (expr
) || TREE_CODE (expr
) == PARM_DECL
)
700 && DECL_HAS_VALUE_EXPR_P (expr
))
701 SET_DECL_VALUE_EXPR (expr
, stream_read_tree (ib
, data_in
));
705 tree dexpr
= stream_read_tree (ib
, data_in
);
707 SET_DECL_DEBUG_EXPR (expr
, dexpr
);
712 /* Read all pointer fields in the TS_DECL_NON_COMMON structure of
713 EXPR from input block IB. DATA_IN contains tables and descriptors for the
717 lto_input_ts_decl_non_common_tree_pointers (struct lto_input_block
*ib
,
718 struct data_in
*data_in
, tree expr
)
720 if (TREE_CODE (expr
) == TYPE_DECL
)
721 DECL_ORIGINAL_TYPE (expr
) = stream_read_tree (ib
, data_in
);
725 /* Read all pointer fields in the TS_DECL_WITH_VIS structure of EXPR
726 from input block IB. DATA_IN contains tables and descriptors for the
730 lto_input_ts_decl_with_vis_tree_pointers (struct lto_input_block
*ib
,
731 struct data_in
*data_in
, tree expr
)
735 id
= stream_read_tree (ib
, data_in
);
738 gcc_assert (TREE_CODE (id
) == IDENTIFIER_NODE
);
739 SET_DECL_ASSEMBLER_NAME (expr
, id
);
744 /* Read all pointer fields in the TS_FIELD_DECL structure of EXPR from
745 input block IB. DATA_IN contains tables and descriptors for the
749 lto_input_ts_field_decl_tree_pointers (struct lto_input_block
*ib
,
750 struct data_in
*data_in
, tree expr
)
752 DECL_FIELD_OFFSET (expr
) = stream_read_tree (ib
, data_in
);
753 DECL_BIT_FIELD_TYPE (expr
) = stream_read_tree (ib
, data_in
);
754 DECL_BIT_FIELD_REPRESENTATIVE (expr
) = stream_read_tree (ib
, data_in
);
755 DECL_FIELD_BIT_OFFSET (expr
) = stream_read_tree (ib
, data_in
);
756 DECL_FCONTEXT (expr
) = stream_read_tree (ib
, data_in
);
760 /* Read all pointer fields in the TS_FUNCTION_DECL structure of EXPR
761 from input block IB. DATA_IN contains tables and descriptors for the
765 lto_input_ts_function_decl_tree_pointers (struct lto_input_block
*ib
,
766 struct data_in
*data_in
, tree expr
)
768 DECL_VINDEX (expr
) = stream_read_tree (ib
, data_in
);
769 /* DECL_STRUCT_FUNCTION is loaded on demand by cgraph_get_body. */
770 DECL_FUNCTION_PERSONALITY (expr
) = stream_read_tree (ib
, data_in
);
771 #ifndef ACCEL_COMPILER
772 DECL_FUNCTION_SPECIFIC_TARGET (expr
) = stream_read_tree (ib
, data_in
);
774 DECL_FUNCTION_SPECIFIC_OPTIMIZATION (expr
) = stream_read_tree (ib
, data_in
);
775 #ifdef ACCEL_COMPILER
777 tree opts
= DECL_FUNCTION_SPECIFIC_OPTIMIZATION (expr
);
780 struct gcc_options tmp
;
781 init_options_struct (&tmp
, NULL
);
782 cl_optimization_restore (&tmp
, TREE_OPTIMIZATION (opts
));
783 finish_options (&tmp
, &global_options_set
, UNKNOWN_LOCATION
);
784 opts
= build_optimization_node (&tmp
);
785 finalize_options_struct (&tmp
);
786 DECL_FUNCTION_SPECIFIC_OPTIMIZATION (expr
) = opts
;
791 /* If the file contains a function with an EH personality set,
792 then it was compiled with -fexceptions. In that case, initialize
793 the backend EH machinery. */
794 if (DECL_FUNCTION_PERSONALITY (expr
))
799 /* Read all pointer fields in the TS_TYPE_COMMON structure of EXPR from
800 input block IB. DATA_IN contains tables and descriptors for the file
804 lto_input_ts_type_common_tree_pointers (struct lto_input_block
*ib
,
805 struct data_in
*data_in
, tree expr
)
807 TYPE_SIZE (expr
) = stream_read_tree (ib
, data_in
);
808 TYPE_SIZE_UNIT (expr
) = stream_read_tree (ib
, data_in
);
809 TYPE_ATTRIBUTES (expr
) = stream_read_tree (ib
, data_in
);
810 TYPE_NAME (expr
) = stream_read_tree (ib
, data_in
);
811 /* Do not stream TYPE_POINTER_TO or TYPE_REFERENCE_TO. They will be
812 reconstructed during fixup. */
813 /* Do not stream TYPE_NEXT_VARIANT, we reconstruct the variant lists
815 TYPE_MAIN_VARIANT (expr
) = stream_read_tree (ib
, data_in
);
816 TYPE_CONTEXT (expr
) = stream_read_tree (ib
, data_in
);
817 /* TYPE_CANONICAL gets re-computed during type merging. */
818 TYPE_CANONICAL (expr
) = NULL_TREE
;
819 TYPE_STUB_DECL (expr
) = stream_read_tree (ib
, data_in
);
822 /* Read all pointer fields in the TS_TYPE_NON_COMMON structure of EXPR
823 from input block IB. DATA_IN contains tables and descriptors for the
827 lto_input_ts_type_non_common_tree_pointers (struct lto_input_block
*ib
,
828 struct data_in
*data_in
,
831 if (TREE_CODE (expr
) == ENUMERAL_TYPE
)
832 TYPE_VALUES (expr
) = stream_read_tree (ib
, data_in
);
833 else if (TREE_CODE (expr
) == ARRAY_TYPE
)
834 TYPE_DOMAIN (expr
) = stream_read_tree (ib
, data_in
);
835 else if (RECORD_OR_UNION_TYPE_P (expr
))
836 TYPE_FIELDS (expr
) = streamer_read_chain (ib
, data_in
);
837 else if (TREE_CODE (expr
) == FUNCTION_TYPE
838 || TREE_CODE (expr
) == METHOD_TYPE
)
839 TYPE_ARG_TYPES (expr
) = stream_read_tree (ib
, data_in
);
841 if (!POINTER_TYPE_P (expr
))
842 TYPE_MIN_VALUE_RAW (expr
) = stream_read_tree (ib
, data_in
);
843 TYPE_MAX_VALUE_RAW (expr
) = stream_read_tree (ib
, data_in
);
844 if (RECORD_OR_UNION_TYPE_P (expr
))
845 TYPE_BINFO (expr
) = stream_read_tree (ib
, data_in
);
849 /* Read all pointer fields in the TS_LIST structure of EXPR from input
850 block IB. DATA_IN contains tables and descriptors for the
854 lto_input_ts_list_tree_pointers (struct lto_input_block
*ib
,
855 struct data_in
*data_in
, tree expr
)
857 TREE_PURPOSE (expr
) = stream_read_tree (ib
, data_in
);
858 TREE_VALUE (expr
) = stream_read_tree (ib
, data_in
);
859 TREE_CHAIN (expr
) = stream_read_tree (ib
, data_in
);
863 /* Read all pointer fields in the TS_VEC structure of EXPR from input
864 block IB. DATA_IN contains tables and descriptors for the
868 lto_input_ts_vec_tree_pointers (struct lto_input_block
*ib
,
869 struct data_in
*data_in
, tree expr
)
873 /* Note that TREE_VEC_LENGTH was read by streamer_alloc_tree to
875 for (i
= 0; i
< TREE_VEC_LENGTH (expr
); i
++)
876 TREE_VEC_ELT (expr
, i
) = stream_read_tree (ib
, data_in
);
880 /* Read all pointer fields in the TS_EXP structure of EXPR from input
881 block IB. DATA_IN contains tables and descriptors for the
886 lto_input_ts_exp_tree_pointers (struct lto_input_block
*ib
,
887 struct data_in
*data_in
, tree expr
)
892 for (i
= 0; i
< TREE_OPERAND_LENGTH (expr
); i
++)
893 TREE_OPERAND (expr
, i
) = stream_read_tree (ib
, data_in
);
895 block
= stream_read_tree (ib
, data_in
);
897 /* TODO: Block is stored in the locus information. It may make more sense to
898 to make it go via the location cache. */
901 data_in
->location_cache
.apply_location_cache ();
902 TREE_SET_BLOCK (expr
, block
);
907 /* Read all pointer fields in the TS_BLOCK structure of EXPR from input
908 block IB. DATA_IN contains tables and descriptors for the
912 lto_input_ts_block_tree_pointers (struct lto_input_block
*ib
,
913 struct data_in
*data_in
, tree expr
)
915 BLOCK_VARS (expr
) = streamer_read_chain (ib
, data_in
);
917 BLOCK_SUPERCONTEXT (expr
) = stream_read_tree (ib
, data_in
);
919 /* Stream BLOCK_ABSTRACT_ORIGIN and BLOCK_SOURCE_LOCATION for
920 the limited cases we can handle - those that represent inlined
921 function scopes. For the rest them on the floor instead of ICEing in
923 BLOCK_ABSTRACT_ORIGIN (expr
) = stream_read_tree (ib
, data_in
);
924 /* Do not stream BLOCK_NONLOCALIZED_VARS. We cannot handle debug information
925 for early inlined BLOCKs so drop it on the floor instead of ICEing in
928 /* BLOCK_FRAGMENT_ORIGIN and BLOCK_FRAGMENT_CHAIN is not live at LTO
931 /* We re-compute BLOCK_SUBBLOCKS of our parent here instead
932 of streaming it. For non-BLOCK BLOCK_SUPERCONTEXTs we still
933 stream the child relationship explicitly. */
934 if (BLOCK_SUPERCONTEXT (expr
)
935 && TREE_CODE (BLOCK_SUPERCONTEXT (expr
)) == BLOCK
)
937 BLOCK_CHAIN (expr
) = BLOCK_SUBBLOCKS (BLOCK_SUPERCONTEXT (expr
));
938 BLOCK_SUBBLOCKS (BLOCK_SUPERCONTEXT (expr
)) = expr
;
941 /* The global block is rooted at the TU decl. Hook it here to
942 avoid the need to stream in this block during WPA time. */
943 else if (BLOCK_SUPERCONTEXT (expr
)
944 && TREE_CODE (BLOCK_SUPERCONTEXT (expr
)) == TRANSLATION_UNIT_DECL
)
945 DECL_INITIAL (BLOCK_SUPERCONTEXT (expr
)) = expr
;
947 /* The function-level block is connected at the time we read in
948 function bodies for the same reason. */
952 /* Read all pointer fields in the TS_BINFO structure of EXPR from input
953 block IB. DATA_IN contains tables and descriptors for the
957 lto_input_ts_binfo_tree_pointers (struct lto_input_block
*ib
,
958 struct data_in
*data_in
, tree expr
)
963 /* Note that the number of slots in EXPR was read in
964 streamer_alloc_tree when instantiating EXPR. However, the
965 vector is empty so we cannot rely on vec::length to know how many
966 elements to read. So, this list is emitted as a 0-terminated
967 list on the writer side. */
970 t
= stream_read_tree (ib
, data_in
);
972 BINFO_BASE_BINFOS (expr
)->quick_push (t
);
976 BINFO_OFFSET (expr
) = stream_read_tree (ib
, data_in
);
977 BINFO_VTABLE (expr
) = stream_read_tree (ib
, data_in
);
978 BINFO_VPTR_FIELD (expr
) = stream_read_tree (ib
, data_in
);
980 /* The vector of BINFO_BASE_ACCESSES is pre-allocated during
981 unpacking the bitfield section. */
982 for (i
= 0; i
< vec_safe_length (BINFO_BASE_ACCESSES (expr
)); i
++)
984 tree a
= stream_read_tree (ib
, data_in
);
985 (*BINFO_BASE_ACCESSES (expr
))[i
] = a
;
987 /* Do not walk BINFO_INHERITANCE_CHAIN, BINFO_SUBVTT_INDEX
988 and BINFO_VPTR_INDEX; these are used by C++ FE only. */
992 /* Read all pointer fields in the TS_CONSTRUCTOR structure of EXPR from
993 input block IB. DATA_IN contains tables and descriptors for the
997 lto_input_ts_constructor_tree_pointers (struct lto_input_block
*ib
,
998 struct data_in
*data_in
, tree expr
)
1002 for (i
= 0; i
< CONSTRUCTOR_NELTS (expr
); i
++)
1005 e
.index
= stream_read_tree (ib
, data_in
);
1006 e
.value
= stream_read_tree (ib
, data_in
);
1007 (*CONSTRUCTOR_ELTS (expr
))[i
] = e
;
1012 /* Read all pointer fields in the TS_OMP_CLAUSE structure of EXPR from
1013 input block IB. DATA_IN contains tables and descriptors for the
1017 lto_input_ts_omp_clause_tree_pointers (struct lto_input_block
*ib
,
1018 struct data_in
*data_in
, tree expr
)
1022 for (i
= 0; i
< omp_clause_num_ops
[OMP_CLAUSE_CODE (expr
)]; i
++)
1023 OMP_CLAUSE_OPERAND (expr
, i
) = stream_read_tree (ib
, data_in
);
1024 OMP_CLAUSE_CHAIN (expr
) = stream_read_tree (ib
, data_in
);
1028 /* Read all pointer fields in EXPR from input block IB. DATA_IN
1029 contains tables and descriptors for the file being read. */
1032 streamer_read_tree_body (struct lto_input_block
*ib
, struct data_in
*data_in
,
1035 enum tree_code code
;
1037 code
= TREE_CODE (expr
);
1039 if (CODE_CONTAINS_STRUCT (code
, TS_TYPED
))
1040 lto_input_ts_common_tree_pointers (ib
, data_in
, expr
);
1042 if (CODE_CONTAINS_STRUCT (code
, TS_VECTOR
))
1043 lto_input_ts_vector_tree_pointers (ib
, data_in
, expr
);
1045 if (CODE_CONTAINS_STRUCT (code
, TS_COMPLEX
))
1046 lto_input_ts_complex_tree_pointers (ib
, data_in
, expr
);
1048 if (CODE_CONTAINS_STRUCT (code
, TS_DECL_MINIMAL
))
1049 lto_input_ts_decl_minimal_tree_pointers (ib
, data_in
, expr
);
1051 if (CODE_CONTAINS_STRUCT (code
, TS_DECL_COMMON
))
1052 lto_input_ts_decl_common_tree_pointers (ib
, data_in
, expr
);
1054 if (CODE_CONTAINS_STRUCT (code
, TS_DECL_NON_COMMON
))
1055 lto_input_ts_decl_non_common_tree_pointers (ib
, data_in
, expr
);
1057 if (CODE_CONTAINS_STRUCT (code
, TS_DECL_WITH_VIS
))
1058 lto_input_ts_decl_with_vis_tree_pointers (ib
, data_in
, expr
);
1060 if (CODE_CONTAINS_STRUCT (code
, TS_FIELD_DECL
))
1061 lto_input_ts_field_decl_tree_pointers (ib
, data_in
, expr
);
1063 if (CODE_CONTAINS_STRUCT (code
, TS_FUNCTION_DECL
))
1064 lto_input_ts_function_decl_tree_pointers (ib
, data_in
, expr
);
1066 if (CODE_CONTAINS_STRUCT (code
, TS_TYPE_COMMON
))
1067 lto_input_ts_type_common_tree_pointers (ib
, data_in
, expr
);
1069 if (CODE_CONTAINS_STRUCT (code
, TS_TYPE_NON_COMMON
))
1070 lto_input_ts_type_non_common_tree_pointers (ib
, data_in
, expr
);
1072 if (CODE_CONTAINS_STRUCT (code
, TS_LIST
))
1073 lto_input_ts_list_tree_pointers (ib
, data_in
, expr
);
1075 if (CODE_CONTAINS_STRUCT (code
, TS_VEC
))
1076 lto_input_ts_vec_tree_pointers (ib
, data_in
, expr
);
1078 if (CODE_CONTAINS_STRUCT (code
, TS_EXP
))
1079 lto_input_ts_exp_tree_pointers (ib
, data_in
, expr
);
1081 if (CODE_CONTAINS_STRUCT (code
, TS_BLOCK
))
1082 lto_input_ts_block_tree_pointers (ib
, data_in
, expr
);
1084 if (CODE_CONTAINS_STRUCT (code
, TS_BINFO
))
1085 lto_input_ts_binfo_tree_pointers (ib
, data_in
, expr
);
1087 if (CODE_CONTAINS_STRUCT (code
, TS_CONSTRUCTOR
))
1088 lto_input_ts_constructor_tree_pointers (ib
, data_in
, expr
);
1090 if (code
== OMP_CLAUSE
)
1091 lto_input_ts_omp_clause_tree_pointers (ib
, data_in
, expr
);
1095 /* Read an index IX from input block IB and return the tree node at
1096 DATA_IN->FILE_DATA->GLOBALS_INDEX[IX]. */
1099 streamer_get_pickled_tree (struct lto_input_block
*ib
, struct data_in
*data_in
)
1101 unsigned HOST_WIDE_INT ix
;
1103 enum LTO_tags expected_tag
;
1105 ix
= streamer_read_uhwi (ib
);
1106 expected_tag
= streamer_read_enum (ib
, LTO_tags
, LTO_NUM_TAGS
);
1108 result
= streamer_tree_cache_get_tree (data_in
->reader_cache
, ix
);
1110 && TREE_CODE (result
) == lto_tag_to_tree_code (expected_tag
));