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
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"
33 #include "gomp-constants.h"
34 #include "stringpool.h"
40 /* Read a STRING_CST from the string table in DATA_IN using input
44 streamer_read_string_cst (struct data_in
*data_in
, struct lto_input_block
*ib
)
49 ptr
= streamer_read_indexed_string (data_in
, ib
, &len
);
52 return build_string (len
, ptr
);
56 /* Read an IDENTIFIER from the string table in DATA_IN using input
60 input_identifier (struct data_in
*data_in
, struct lto_input_block
*ib
)
65 ptr
= streamer_read_indexed_string (data_in
, ib
, &len
);
68 return get_identifier_with_length (ptr
, len
);
72 /* Read a chain of tree nodes from input block IB. DATA_IN contains
73 tables and descriptors for the file being read. */
76 streamer_read_chain (struct lto_input_block
*ib
, struct data_in
*data_in
)
78 tree first
, prev
, curr
;
80 /* The chain is written as NULL terminated list of trees. */
81 first
= prev
= NULL_TREE
;
84 curr
= stream_read_tree (ib
, data_in
);
86 TREE_CHAIN (prev
) = curr
;
98 /* Unpack all the non-pointer fields of the TS_BASE structure of
99 expression EXPR from bitpack BP. */
102 unpack_ts_base_value_fields (struct bitpack_d
*bp
, tree expr
)
104 /* Note that the code for EXPR has already been unpacked to create EXPR in
105 streamer_alloc_tree. */
108 TREE_SIDE_EFFECTS (expr
) = (unsigned) bp_unpack_value (bp
, 1);
109 TREE_CONSTANT (expr
) = (unsigned) bp_unpack_value (bp
, 1);
110 TREE_READONLY (expr
) = (unsigned) bp_unpack_value (bp
, 1);
112 /* TREE_PUBLIC is used on types to indicate that the type
113 has a TYPE_CACHED_VALUES vector. This is not streamed out,
114 so we skip it here. */
115 TREE_PUBLIC (expr
) = (unsigned) bp_unpack_value (bp
, 1);
118 bp_unpack_value (bp
, 4);
119 TREE_ADDRESSABLE (expr
) = (unsigned) bp_unpack_value (bp
, 1);
120 TREE_THIS_VOLATILE (expr
) = (unsigned) bp_unpack_value (bp
, 1);
123 DECL_UNSIGNED (expr
) = (unsigned) bp_unpack_value (bp
, 1);
124 DECL_NAMELESS (expr
) = (unsigned) bp_unpack_value (bp
, 1);
126 else if (TYPE_P (expr
))
127 TYPE_UNSIGNED (expr
) = (unsigned) bp_unpack_value (bp
, 1);
129 bp_unpack_value (bp
, 1);
130 TREE_ASM_WRITTEN (expr
) = (unsigned) bp_unpack_value (bp
, 1);
132 TYPE_ARTIFICIAL (expr
) = (unsigned) bp_unpack_value (bp
, 1);
134 TREE_NO_WARNING (expr
) = (unsigned) bp_unpack_value (bp
, 1);
135 TREE_NOTHROW (expr
) = (unsigned) bp_unpack_value (bp
, 1);
136 TREE_STATIC (expr
) = (unsigned) bp_unpack_value (bp
, 1);
137 if (TREE_CODE (expr
) != TREE_BINFO
)
138 TREE_PRIVATE (expr
) = (unsigned) bp_unpack_value (bp
, 1);
140 bp_unpack_value (bp
, 1);
141 TREE_PROTECTED (expr
) = (unsigned) bp_unpack_value (bp
, 1);
142 TREE_DEPRECATED (expr
) = (unsigned) bp_unpack_value (bp
, 1);
145 if (AGGREGATE_TYPE_P (expr
))
146 TYPE_REVERSE_STORAGE_ORDER (expr
) = (unsigned) bp_unpack_value (bp
, 1);
148 TYPE_SATURATING (expr
) = (unsigned) bp_unpack_value (bp
, 1);
149 TYPE_ADDR_SPACE (expr
) = (unsigned) bp_unpack_value (bp
, 8);
151 else if (TREE_CODE (expr
) == BIT_FIELD_REF
|| TREE_CODE (expr
) == MEM_REF
)
153 REF_REVERSE_STORAGE_ORDER (expr
) = (unsigned) bp_unpack_value (bp
, 1);
154 bp_unpack_value (bp
, 8);
156 else if (TREE_CODE (expr
) == SSA_NAME
)
158 SSA_NAME_IS_DEFAULT_DEF (expr
) = (unsigned) bp_unpack_value (bp
, 1);
159 bp_unpack_value (bp
, 8);
162 bp_unpack_value (bp
, 9);
166 /* Unpack all the non-pointer fields of the TS_INT_CST structure of
167 expression EXPR from bitpack BP. */
170 unpack_ts_int_cst_value_fields (struct bitpack_d
*bp
, tree expr
)
173 for (i
= 0; i
< TREE_INT_CST_EXT_NUNITS (expr
); i
++)
174 TREE_INT_CST_ELT (expr
, i
) = bp_unpack_var_len_int (bp
);
178 /* Unpack all the non-pointer fields of the TS_REAL_CST structure of
179 expression EXPR from bitpack BP. */
182 unpack_ts_real_cst_value_fields (struct bitpack_d
*bp
, tree expr
)
188 /* Clear all bits of the real value type so that we can later do
189 bitwise comparisons to see if two values are the same. */
190 memset (&r
, 0, sizeof r
);
191 r
.cl
= (unsigned) bp_unpack_value (bp
, 2);
192 r
.decimal
= (unsigned) bp_unpack_value (bp
, 1);
193 r
.sign
= (unsigned) bp_unpack_value (bp
, 1);
194 r
.signalling
= (unsigned) bp_unpack_value (bp
, 1);
195 r
.canonical
= (unsigned) bp_unpack_value (bp
, 1);
196 r
.uexp
= (unsigned) bp_unpack_value (bp
, EXP_BITS
);
197 for (i
= 0; i
< SIGSZ
; i
++)
198 r
.sig
[i
] = (unsigned long) bp_unpack_value (bp
, HOST_BITS_PER_LONG
);
200 rp
= ggc_alloc
<real_value
> ();
201 memcpy (rp
, &r
, sizeof (REAL_VALUE_TYPE
));
202 TREE_REAL_CST_PTR (expr
) = rp
;
206 /* Unpack all the non-pointer fields of the TS_FIXED_CST structure of
207 expression EXPR from bitpack BP. */
210 unpack_ts_fixed_cst_value_fields (struct bitpack_d
*bp
, tree expr
)
212 FIXED_VALUE_TYPE
*fp
= ggc_alloc
<fixed_value
> ();
213 fp
->mode
= as_a
<scalar_mode
> (bp_unpack_machine_mode (bp
));
214 fp
->data
.low
= bp_unpack_var_len_int (bp
);
215 fp
->data
.high
= bp_unpack_var_len_int (bp
);
216 TREE_FIXED_CST_PTR (expr
) = fp
;
219 /* Unpack all the non-pointer fields of the TS_DECL_COMMON structure
220 of expression EXPR from bitpack BP. */
223 unpack_ts_decl_common_value_fields (struct bitpack_d
*bp
, tree expr
)
225 SET_DECL_MODE (expr
, bp_unpack_machine_mode (bp
));
226 DECL_NONLOCAL (expr
) = (unsigned) bp_unpack_value (bp
, 1);
227 DECL_VIRTUAL_P (expr
) = (unsigned) bp_unpack_value (bp
, 1);
228 DECL_IGNORED_P (expr
) = (unsigned) bp_unpack_value (bp
, 1);
229 DECL_ABSTRACT_P (expr
) = (unsigned) bp_unpack_value (bp
, 1);
230 DECL_ARTIFICIAL (expr
) = (unsigned) bp_unpack_value (bp
, 1);
231 DECL_USER_ALIGN (expr
) = (unsigned) bp_unpack_value (bp
, 1);
232 DECL_PRESERVE_P (expr
) = (unsigned) bp_unpack_value (bp
, 1);
233 DECL_EXTERNAL (expr
) = (unsigned) bp_unpack_value (bp
, 1);
234 DECL_GIMPLE_REG_P (expr
) = (unsigned) bp_unpack_value (bp
, 1);
235 SET_DECL_ALIGN (expr
, (unsigned) bp_unpack_var_len_unsigned (bp
));
236 #ifdef ACCEL_COMPILER
237 if (DECL_ALIGN (expr
) > targetm
.absolute_biggest_alignment
)
238 SET_DECL_ALIGN (expr
, targetm
.absolute_biggest_alignment
);
240 if (TREE_CODE (expr
) == LABEL_DECL
)
242 EH_LANDING_PAD_NR (expr
) = (int) bp_unpack_var_len_unsigned (bp
);
244 /* Always assume an initial value of -1 for LABEL_DECL_UID to
245 force gimple_set_bb to recreate label_to_block_map. */
246 LABEL_DECL_UID (expr
) = -1;
249 if (TREE_CODE (expr
) == FIELD_DECL
)
251 DECL_PACKED (expr
) = (unsigned) bp_unpack_value (bp
, 1);
252 DECL_NONADDRESSABLE_P (expr
) = (unsigned) bp_unpack_value (bp
, 1);
253 DECL_PADDING_P (expr
) = (unsigned) bp_unpack_value (bp
, 1);
254 expr
->decl_common
.off_align
= bp_unpack_value (bp
, 8);
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_EMPTY_P (expr
) = (unsigned) bp_unpack_value (bp
, 1);
385 TYPE_PRECISION (expr
) = bp_unpack_var_len_unsigned (bp
);
386 SET_TYPE_ALIGN (expr
, bp_unpack_var_len_unsigned (bp
));
387 #ifdef ACCEL_COMPILER
388 if (TYPE_ALIGN (expr
) > targetm
.absolute_biggest_alignment
)
389 SET_TYPE_ALIGN (expr
, targetm
.absolute_biggest_alignment
);
394 /* Unpack all the non-pointer fields of the TS_BLOCK structure
395 of expression EXPR from bitpack BP. */
398 unpack_ts_block_value_fields (struct data_in
*data_in
,
399 struct bitpack_d
*bp
, tree expr
)
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 (data_in
, &bp
, TREE_OPTIMIZATION (expr
));
534 if (CODE_CONTAINS_STRUCT (code
, TS_CONSTRUCTOR
))
536 unsigned HOST_WIDE_INT length
= bp_unpack_var_len_unsigned (&bp
);
538 vec_safe_grow (CONSTRUCTOR_ELTS (expr
), length
);
541 #ifndef ACCEL_COMPILER
542 if (CODE_CONTAINS_STRUCT (code
, TS_TARGET_OPTION
))
544 cl_target_option_stream_in (data_in
, &bp
, TREE_TARGET_OPTION (expr
));
545 if (targetm
.target_option
.post_stream_in
)
546 targetm
.target_option
.post_stream_in (TREE_TARGET_OPTION (expr
));
550 if (code
== OMP_CLAUSE
)
551 unpack_ts_omp_clause_value_fields (data_in
, &bp
, expr
);
555 /* Materialize a new tree from input block IB using descriptors in
556 DATA_IN. The code for the new tree should match TAG. Store in
557 *IX_P the index into the reader cache where the new tree is stored. */
560 streamer_alloc_tree (struct lto_input_block
*ib
, struct data_in
*data_in
,
568 code
= lto_tag_to_tree_code (tag
);
570 /* We should never see an SSA_NAME tree. Only the version numbers of
571 SSA names are ever written out. See input_ssa_names. */
572 gcc_assert (code
!= SSA_NAME
);
574 /* Instantiate a new tree using the header data. */
575 if (CODE_CONTAINS_STRUCT (code
, TS_STRING
))
576 result
= streamer_read_string_cst (data_in
, ib
);
577 else if (CODE_CONTAINS_STRUCT (code
, TS_IDENTIFIER
))
578 result
= input_identifier (data_in
, ib
);
579 else if (CODE_CONTAINS_STRUCT (code
, TS_VEC
))
581 HOST_WIDE_INT len
= streamer_read_hwi (ib
);
582 result
= make_tree_vec (len
);
584 else if (CODE_CONTAINS_STRUCT (code
, TS_VECTOR
))
586 bitpack_d bp
= streamer_read_bitpack (ib
);
587 unsigned int log2_npatterns
= bp_unpack_value (&bp
, 8);
588 unsigned int nelts_per_pattern
= bp_unpack_value (&bp
, 8);
589 result
= make_vector (log2_npatterns
, nelts_per_pattern
);
591 else if (CODE_CONTAINS_STRUCT (code
, TS_BINFO
))
593 unsigned HOST_WIDE_INT len
= streamer_read_uhwi (ib
);
594 result
= make_tree_binfo (len
);
596 else if (CODE_CONTAINS_STRUCT (code
, TS_INT_CST
))
598 unsigned HOST_WIDE_INT len
= streamer_read_uhwi (ib
);
599 unsigned HOST_WIDE_INT ext_len
= streamer_read_uhwi (ib
);
600 result
= make_int_cst (len
, ext_len
);
602 else if (code
== CALL_EXPR
)
604 unsigned HOST_WIDE_INT nargs
= streamer_read_uhwi (ib
);
605 return build_vl_exp (CALL_EXPR
, nargs
+ 3);
607 else if (code
== OMP_CLAUSE
)
609 enum omp_clause_code subcode
610 = (enum omp_clause_code
) streamer_read_uhwi (ib
);
611 return build_omp_clause (UNKNOWN_LOCATION
, subcode
);
615 /* For all other nodes, materialize the tree with a raw
617 result
= make_node (code
);
624 /* Read all pointer fields in the TS_COMMON structure of EXPR from input
625 block IB. DATA_IN contains tables and descriptors for the
630 lto_input_ts_common_tree_pointers (struct lto_input_block
*ib
,
631 struct data_in
*data_in
, tree expr
)
633 if (TREE_CODE (expr
) != IDENTIFIER_NODE
)
634 TREE_TYPE (expr
) = stream_read_tree (ib
, data_in
);
638 /* Read all pointer fields in the TS_VECTOR structure of EXPR from input
639 block IB. DATA_IN contains tables and descriptors for the
643 lto_input_ts_vector_tree_pointers (struct lto_input_block
*ib
,
644 struct data_in
*data_in
, tree expr
)
646 unsigned int count
= vector_cst_encoded_nelts (expr
);
647 for (unsigned int i
= 0; i
< count
; ++i
)
648 VECTOR_CST_ENCODED_ELT (expr
, i
) = stream_read_tree (ib
, data_in
);
652 /* Read all pointer fields in the TS_POLY_INT_CST structure of EXPR from
653 input block IB. DATA_IN contains tables and descriptors for the
657 lto_input_ts_poly_tree_pointers (struct lto_input_block
*ib
,
658 struct data_in
*data_in
, tree expr
)
660 for (unsigned int i
= 0; i
< NUM_POLY_INT_COEFFS
; ++i
)
661 POLY_INT_CST_COEFF (expr
, i
) = stream_read_tree (ib
, data_in
);
665 /* Read all pointer fields in the TS_COMPLEX structure of EXPR from input
666 block IB. DATA_IN contains tables and descriptors for the
670 lto_input_ts_complex_tree_pointers (struct lto_input_block
*ib
,
671 struct data_in
*data_in
, tree expr
)
673 TREE_REALPART (expr
) = stream_read_tree (ib
, data_in
);
674 TREE_IMAGPART (expr
) = stream_read_tree (ib
, data_in
);
678 /* Read all pointer fields in the TS_DECL_MINIMAL structure of EXPR
679 from input block IB. DATA_IN contains tables and descriptors for the
683 lto_input_ts_decl_minimal_tree_pointers (struct lto_input_block
*ib
,
684 struct data_in
*data_in
, tree expr
)
686 DECL_NAME (expr
) = stream_read_tree (ib
, data_in
);
687 DECL_CONTEXT (expr
) = stream_read_tree (ib
, data_in
);
691 /* Read all pointer fields in the TS_DECL_COMMON structure of EXPR from
692 input block IB. DATA_IN contains tables and descriptors for the
696 lto_input_ts_decl_common_tree_pointers (struct lto_input_block
*ib
,
697 struct data_in
*data_in
, tree expr
)
699 DECL_SIZE (expr
) = stream_read_tree (ib
, data_in
);
700 DECL_SIZE_UNIT (expr
) = stream_read_tree (ib
, data_in
);
701 DECL_ATTRIBUTES (expr
) = stream_read_tree (ib
, data_in
);
702 DECL_ABSTRACT_ORIGIN (expr
) = stream_read_tree (ib
, data_in
);
704 if ((VAR_P (expr
) || TREE_CODE (expr
) == PARM_DECL
)
705 && DECL_HAS_VALUE_EXPR_P (expr
))
706 SET_DECL_VALUE_EXPR (expr
, stream_read_tree (ib
, data_in
));
709 && DECL_HAS_DEBUG_EXPR_P (expr
))
711 tree dexpr
= stream_read_tree (ib
, data_in
);
713 SET_DECL_DEBUG_EXPR (expr
, dexpr
);
718 /* Read all pointer fields in the TS_DECL_NON_COMMON structure of
719 EXPR from input block IB. DATA_IN contains tables and descriptors for the
723 lto_input_ts_decl_non_common_tree_pointers (struct lto_input_block
*,
724 struct data_in
*, tree
)
729 /* Read all pointer fields in the TS_DECL_WITH_VIS structure of EXPR
730 from input block IB. DATA_IN contains tables and descriptors for the
734 lto_input_ts_decl_with_vis_tree_pointers (struct lto_input_block
*ib
,
735 struct data_in
*data_in
, tree expr
)
739 id
= stream_read_tree (ib
, data_in
);
742 gcc_assert (TREE_CODE (id
) == IDENTIFIER_NODE
);
743 SET_DECL_ASSEMBLER_NAME (expr
, id
);
748 /* Read all pointer fields in the TS_FIELD_DECL structure of EXPR from
749 input block IB. DATA_IN contains tables and descriptors for the
753 lto_input_ts_field_decl_tree_pointers (struct lto_input_block
*ib
,
754 struct data_in
*data_in
, tree expr
)
756 DECL_FIELD_OFFSET (expr
) = stream_read_tree (ib
, data_in
);
757 DECL_BIT_FIELD_TYPE (expr
) = stream_read_tree (ib
, data_in
);
758 DECL_BIT_FIELD_REPRESENTATIVE (expr
) = stream_read_tree (ib
, data_in
);
759 DECL_FIELD_BIT_OFFSET (expr
) = stream_read_tree (ib
, data_in
);
763 /* Read all pointer fields in the TS_FUNCTION_DECL structure of EXPR
764 from input block IB. DATA_IN contains tables and descriptors for the
768 lto_input_ts_function_decl_tree_pointers (struct lto_input_block
*ib
,
769 struct data_in
*data_in
, tree expr
)
771 /* DECL_STRUCT_FUNCTION is loaded on demand by cgraph_get_body. */
772 DECL_FUNCTION_PERSONALITY (expr
) = stream_read_tree (ib
, data_in
);
773 #ifndef ACCEL_COMPILER
774 DECL_FUNCTION_SPECIFIC_TARGET (expr
) = stream_read_tree (ib
, data_in
);
776 DECL_FUNCTION_SPECIFIC_OPTIMIZATION (expr
) = stream_read_tree (ib
, data_in
);
777 #ifdef ACCEL_COMPILER
779 tree opts
= DECL_FUNCTION_SPECIFIC_OPTIMIZATION (expr
);
782 struct gcc_options tmp
;
783 init_options_struct (&tmp
, NULL
);
784 cl_optimization_restore (&tmp
, TREE_OPTIMIZATION (opts
));
785 finish_options (&tmp
, &global_options_set
, UNKNOWN_LOCATION
);
786 opts
= build_optimization_node (&tmp
);
787 finalize_options_struct (&tmp
);
788 DECL_FUNCTION_SPECIFIC_OPTIMIZATION (expr
) = opts
;
793 /* If the file contains a function with an EH personality set,
794 then it was compiled with -fexceptions. In that case, initialize
795 the backend EH machinery. */
796 if (DECL_FUNCTION_PERSONALITY (expr
))
801 /* Read all pointer fields in the TS_TYPE_COMMON structure of EXPR from
802 input block IB. DATA_IN contains tables and descriptors for the file
806 lto_input_ts_type_common_tree_pointers (struct lto_input_block
*ib
,
807 struct data_in
*data_in
, tree expr
)
809 TYPE_SIZE (expr
) = stream_read_tree (ib
, data_in
);
810 TYPE_SIZE_UNIT (expr
) = stream_read_tree (ib
, data_in
);
811 TYPE_ATTRIBUTES (expr
) = stream_read_tree (ib
, data_in
);
812 TYPE_NAME (expr
) = stream_read_tree (ib
, data_in
);
813 /* Do not stream TYPE_POINTER_TO or TYPE_REFERENCE_TO. They will be
814 reconstructed during fixup. */
815 /* Do not stream TYPE_NEXT_VARIANT, we reconstruct the variant lists
817 TYPE_MAIN_VARIANT (expr
) = stream_read_tree (ib
, data_in
);
818 TYPE_CONTEXT (expr
) = stream_read_tree (ib
, data_in
);
819 /* TYPE_CANONICAL gets re-computed during type merging. */
820 TYPE_CANONICAL (expr
) = NULL_TREE
;
823 /* Read all pointer fields in the TS_TYPE_NON_COMMON structure of EXPR
824 from input block IB. DATA_IN contains tables and descriptors for the
828 lto_input_ts_type_non_common_tree_pointers (struct lto_input_block
*ib
,
829 struct data_in
*data_in
,
832 if (TREE_CODE (expr
) == ENUMERAL_TYPE
)
833 TYPE_VALUES (expr
) = stream_read_tree (ib
, data_in
);
834 else if (TREE_CODE (expr
) == ARRAY_TYPE
)
835 TYPE_DOMAIN (expr
) = stream_read_tree (ib
, data_in
);
836 else if (RECORD_OR_UNION_TYPE_P (expr
))
837 TYPE_FIELDS (expr
) = streamer_read_chain (ib
, data_in
);
838 else if (TREE_CODE (expr
) == FUNCTION_TYPE
839 || TREE_CODE (expr
) == METHOD_TYPE
)
840 TYPE_ARG_TYPES (expr
) = stream_read_tree (ib
, data_in
);
842 if (!POINTER_TYPE_P (expr
))
843 TYPE_MIN_VALUE_RAW (expr
) = stream_read_tree (ib
, data_in
);
844 TYPE_MAX_VALUE_RAW (expr
) = stream_read_tree (ib
, data_in
);
848 /* Read all pointer fields in the TS_LIST structure of EXPR from input
849 block IB. DATA_IN contains tables and descriptors for the
853 lto_input_ts_list_tree_pointers (struct lto_input_block
*ib
,
854 struct data_in
*data_in
, tree expr
)
856 TREE_PURPOSE (expr
) = stream_read_tree (ib
, data_in
);
857 TREE_VALUE (expr
) = stream_read_tree (ib
, data_in
);
858 TREE_CHAIN (expr
) = stream_read_tree (ib
, data_in
);
862 /* Read all pointer fields in the TS_VEC structure of EXPR from input
863 block IB. DATA_IN contains tables and descriptors for the
867 lto_input_ts_vec_tree_pointers (struct lto_input_block
*ib
,
868 struct data_in
*data_in
, tree expr
)
872 /* Note that TREE_VEC_LENGTH was read by streamer_alloc_tree to
874 for (i
= 0; i
< TREE_VEC_LENGTH (expr
); i
++)
875 TREE_VEC_ELT (expr
, i
) = stream_read_tree (ib
, data_in
);
879 /* Read all pointer fields in the TS_EXP structure of EXPR from input
880 block IB. DATA_IN contains tables and descriptors for the
885 lto_input_ts_exp_tree_pointers (struct lto_input_block
*ib
,
886 struct data_in
*data_in
, tree expr
)
891 for (i
= 0; i
< TREE_OPERAND_LENGTH (expr
); i
++)
892 TREE_OPERAND (expr
, i
) = stream_read_tree (ib
, data_in
);
894 block
= stream_read_tree (ib
, data_in
);
896 /* TODO: Block is stored in the locus information. It may make more sense to
897 to make it go via the location cache. */
900 data_in
->location_cache
.apply_location_cache ();
901 TREE_SET_BLOCK (expr
, block
);
906 /* Read all pointer fields in the TS_BLOCK structure of EXPR from input
907 block IB. DATA_IN contains tables and descriptors for the
911 lto_input_ts_block_tree_pointers (struct lto_input_block
*ib
,
912 struct data_in
*data_in
, tree expr
)
914 BLOCK_VARS (expr
) = streamer_read_chain (ib
, data_in
);
916 BLOCK_SUPERCONTEXT (expr
) = stream_read_tree (ib
, data_in
);
917 BLOCK_ABSTRACT_ORIGIN (expr
) = stream_read_tree (ib
, data_in
);
918 /* Do not stream BLOCK_NONLOCALIZED_VARS. We cannot handle debug information
919 for early inlined BLOCKs so drop it on the floor instead of ICEing in
922 /* BLOCK_FRAGMENT_ORIGIN and BLOCK_FRAGMENT_CHAIN is not live at LTO
925 /* We re-compute BLOCK_SUBBLOCKS of our parent here instead
926 of streaming it. For non-BLOCK BLOCK_SUPERCONTEXTs we still
927 stream the child relationship explicitly. */
928 if (BLOCK_SUPERCONTEXT (expr
)
929 && TREE_CODE (BLOCK_SUPERCONTEXT (expr
)) == BLOCK
)
931 BLOCK_CHAIN (expr
) = BLOCK_SUBBLOCKS (BLOCK_SUPERCONTEXT (expr
));
932 BLOCK_SUBBLOCKS (BLOCK_SUPERCONTEXT (expr
)) = expr
;
935 /* The global block is rooted at the TU decl. Hook it here to
936 avoid the need to stream in this block during WPA time. */
937 else if (BLOCK_SUPERCONTEXT (expr
)
938 && TREE_CODE (BLOCK_SUPERCONTEXT (expr
)) == TRANSLATION_UNIT_DECL
)
939 DECL_INITIAL (BLOCK_SUPERCONTEXT (expr
)) = expr
;
941 /* The function-level block is connected at the time we read in
942 function bodies for the same reason. */
946 /* Read all pointer fields in the TS_BINFO structure of EXPR from input
947 block IB. DATA_IN contains tables and descriptors for the
951 lto_input_ts_binfo_tree_pointers (struct lto_input_block
*ib
,
952 struct data_in
*data_in
, tree expr
)
956 /* Note that the number of slots in EXPR was read in
957 streamer_alloc_tree when instantiating EXPR. However, the
958 vector is empty so we cannot rely on vec::length to know how many
959 elements to read. So, this list is emitted as a 0-terminated
960 list on the writer side. */
963 t
= stream_read_tree (ib
, data_in
);
965 BINFO_BASE_BINFOS (expr
)->quick_push (t
);
969 BINFO_OFFSET (expr
) = stream_read_tree (ib
, data_in
);
970 BINFO_VTABLE (expr
) = stream_read_tree (ib
, data_in
);
972 /* Do not walk BINFO_INHERITANCE_CHAIN, BINFO_SUBVTT_INDEX,
973 BINFO_BASE_ACCESSES and BINFO_VPTR_INDEX; these are used by C++ FE
978 /* Read all pointer fields in the TS_CONSTRUCTOR structure of EXPR from
979 input block IB. DATA_IN contains tables and descriptors for the
983 lto_input_ts_constructor_tree_pointers (struct lto_input_block
*ib
,
984 struct data_in
*data_in
, tree expr
)
988 for (i
= 0; i
< CONSTRUCTOR_NELTS (expr
); i
++)
991 e
.index
= stream_read_tree (ib
, data_in
);
992 e
.value
= stream_read_tree (ib
, data_in
);
993 (*CONSTRUCTOR_ELTS (expr
))[i
] = e
;
998 /* Read all pointer fields in the TS_OMP_CLAUSE structure of EXPR from
999 input block IB. DATA_IN contains tables and descriptors for the
1003 lto_input_ts_omp_clause_tree_pointers (struct lto_input_block
*ib
,
1004 struct data_in
*data_in
, tree expr
)
1008 for (i
= 0; i
< omp_clause_num_ops
[OMP_CLAUSE_CODE (expr
)]; i
++)
1009 OMP_CLAUSE_OPERAND (expr
, i
) = stream_read_tree (ib
, data_in
);
1010 OMP_CLAUSE_CHAIN (expr
) = stream_read_tree (ib
, data_in
);
1014 /* Read all pointer fields in EXPR from input block IB. DATA_IN
1015 contains tables and descriptors for the file being read. */
1018 streamer_read_tree_body (struct lto_input_block
*ib
, struct data_in
*data_in
,
1021 enum tree_code code
;
1023 code
= TREE_CODE (expr
);
1025 if (CODE_CONTAINS_STRUCT (code
, TS_TYPED
))
1026 lto_input_ts_common_tree_pointers (ib
, data_in
, expr
);
1028 if (CODE_CONTAINS_STRUCT (code
, TS_VECTOR
))
1029 lto_input_ts_vector_tree_pointers (ib
, data_in
, expr
);
1031 if (CODE_CONTAINS_STRUCT (code
, TS_POLY_INT_CST
))
1032 lto_input_ts_poly_tree_pointers (ib
, data_in
, expr
);
1034 if (CODE_CONTAINS_STRUCT (code
, TS_COMPLEX
))
1035 lto_input_ts_complex_tree_pointers (ib
, data_in
, expr
);
1037 if (CODE_CONTAINS_STRUCT (code
, TS_DECL_MINIMAL
))
1038 lto_input_ts_decl_minimal_tree_pointers (ib
, data_in
, expr
);
1040 if (CODE_CONTAINS_STRUCT (code
, TS_DECL_COMMON
))
1041 lto_input_ts_decl_common_tree_pointers (ib
, data_in
, expr
);
1043 if (CODE_CONTAINS_STRUCT (code
, TS_DECL_NON_COMMON
))
1044 lto_input_ts_decl_non_common_tree_pointers (ib
, data_in
, expr
);
1046 if (CODE_CONTAINS_STRUCT (code
, TS_DECL_WITH_VIS
))
1047 lto_input_ts_decl_with_vis_tree_pointers (ib
, data_in
, expr
);
1049 if (CODE_CONTAINS_STRUCT (code
, TS_FIELD_DECL
))
1050 lto_input_ts_field_decl_tree_pointers (ib
, data_in
, expr
);
1052 if (CODE_CONTAINS_STRUCT (code
, TS_FUNCTION_DECL
))
1053 lto_input_ts_function_decl_tree_pointers (ib
, data_in
, expr
);
1055 if (CODE_CONTAINS_STRUCT (code
, TS_TYPE_COMMON
))
1056 lto_input_ts_type_common_tree_pointers (ib
, data_in
, expr
);
1058 if (CODE_CONTAINS_STRUCT (code
, TS_TYPE_NON_COMMON
))
1059 lto_input_ts_type_non_common_tree_pointers (ib
, data_in
, expr
);
1061 if (CODE_CONTAINS_STRUCT (code
, TS_LIST
))
1062 lto_input_ts_list_tree_pointers (ib
, data_in
, expr
);
1064 if (CODE_CONTAINS_STRUCT (code
, TS_VEC
))
1065 lto_input_ts_vec_tree_pointers (ib
, data_in
, expr
);
1067 if (CODE_CONTAINS_STRUCT (code
, TS_EXP
))
1068 lto_input_ts_exp_tree_pointers (ib
, data_in
, expr
);
1070 if (CODE_CONTAINS_STRUCT (code
, TS_BLOCK
))
1071 lto_input_ts_block_tree_pointers (ib
, data_in
, expr
);
1073 if (CODE_CONTAINS_STRUCT (code
, TS_BINFO
))
1074 lto_input_ts_binfo_tree_pointers (ib
, data_in
, expr
);
1076 if (CODE_CONTAINS_STRUCT (code
, TS_CONSTRUCTOR
))
1077 lto_input_ts_constructor_tree_pointers (ib
, data_in
, expr
);
1079 if (code
== OMP_CLAUSE
)
1080 lto_input_ts_omp_clause_tree_pointers (ib
, data_in
, expr
);
1084 /* Read an index IX from input block IB and return the tree node at
1085 DATA_IN->FILE_DATA->GLOBALS_INDEX[IX]. */
1088 streamer_get_pickled_tree (struct lto_input_block
*ib
, struct data_in
*data_in
)
1090 unsigned HOST_WIDE_INT ix
;
1092 enum LTO_tags expected_tag
;
1094 ix
= streamer_read_uhwi (ib
);
1095 expected_tag
= streamer_read_enum (ib
, LTO_tags
, LTO_NUM_TAGS
);
1097 result
= streamer_tree_cache_get_tree (data_in
->reader_cache
, ix
);
1099 && TREE_CODE (result
) == lto_tag_to_tree_code (expected_tag
));