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"
25 #include "diagnostic.h"
30 #include "fold-const.h"
31 #include "stringpool.h"
34 #include "hard-reg-set.h"
36 #include "basic-block.h"
37 #include "tree-ssa-alias.h"
38 #include "internal-fn.h"
39 #include "gimple-expr.h"
42 #include "tree-streamer.h"
43 #include "data-streamer.h"
44 #include "streamer-hooks.h"
45 #include "lto-streamer.h"
48 #include "gomp-constants.h"
51 /* Read a STRING_CST from the string table in DATA_IN using input
55 streamer_read_string_cst (struct data_in
*data_in
, struct lto_input_block
*ib
)
60 ptr
= streamer_read_indexed_string (data_in
, ib
, &len
);
63 return build_string (len
, ptr
);
67 /* Read an IDENTIFIER from the string table in DATA_IN using input
71 input_identifier (struct data_in
*data_in
, struct lto_input_block
*ib
)
76 ptr
= streamer_read_indexed_string (data_in
, ib
, &len
);
79 return get_identifier_with_length (ptr
, len
);
83 /* Read a chain of tree nodes from input block IB. DATA_IN contains
84 tables and descriptors for the file being read. */
87 streamer_read_chain (struct lto_input_block
*ib
, struct data_in
*data_in
)
89 tree first
, prev
, curr
;
91 /* The chain is written as NULL terminated list of trees. */
92 first
= prev
= NULL_TREE
;
95 curr
= stream_read_tree (ib
, data_in
);
97 TREE_CHAIN (prev
) = curr
;
109 /* Unpack all the non-pointer fields of the TS_BASE structure of
110 expression EXPR from bitpack BP. */
113 unpack_ts_base_value_fields (struct bitpack_d
*bp
, tree expr
)
115 /* Note that the code for EXPR has already been unpacked to create EXPR in
116 streamer_alloc_tree. */
119 TREE_SIDE_EFFECTS (expr
) = (unsigned) bp_unpack_value (bp
, 1);
120 TREE_CONSTANT (expr
) = (unsigned) bp_unpack_value (bp
, 1);
121 TREE_READONLY (expr
) = (unsigned) bp_unpack_value (bp
, 1);
123 /* TREE_PUBLIC is used on types to indicate that the type
124 has a TYPE_CACHED_VALUES vector. This is not streamed out,
125 so we skip it here. */
126 TREE_PUBLIC (expr
) = (unsigned) bp_unpack_value (bp
, 1);
129 bp_unpack_value (bp
, 4);
130 TREE_ADDRESSABLE (expr
) = (unsigned) bp_unpack_value (bp
, 1);
131 TREE_THIS_VOLATILE (expr
) = (unsigned) bp_unpack_value (bp
, 1);
133 DECL_UNSIGNED (expr
) = (unsigned) bp_unpack_value (bp
, 1);
134 else if (TYPE_P (expr
))
135 TYPE_UNSIGNED (expr
) = (unsigned) bp_unpack_value (bp
, 1);
137 bp_unpack_value (bp
, 1);
138 TREE_ASM_WRITTEN (expr
) = (unsigned) bp_unpack_value (bp
, 1);
140 TYPE_ARTIFICIAL (expr
) = (unsigned) bp_unpack_value (bp
, 1);
142 TREE_NO_WARNING (expr
) = (unsigned) bp_unpack_value (bp
, 1);
143 TREE_NOTHROW (expr
) = (unsigned) bp_unpack_value (bp
, 1);
144 TREE_STATIC (expr
) = (unsigned) bp_unpack_value (bp
, 1);
145 if (TREE_CODE (expr
) != TREE_BINFO
)
146 TREE_PRIVATE (expr
) = (unsigned) bp_unpack_value (bp
, 1);
148 bp_unpack_value (bp
, 1);
149 TREE_PROTECTED (expr
) = (unsigned) bp_unpack_value (bp
, 1);
150 TREE_DEPRECATED (expr
) = (unsigned) bp_unpack_value (bp
, 1);
153 TYPE_SATURATING (expr
) = (unsigned) bp_unpack_value (bp
, 1);
154 TYPE_ADDR_SPACE (expr
) = (unsigned) 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
= 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 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 DECL_ALIGN (expr
) = (unsigned) bp_unpack_var_len_unsigned (bp
);
236 #ifdef ACCEL_COMPILER
237 if (DECL_ALIGN (expr
) > targetm
.absolute_biggest_alignment
)
238 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 expr
->decl_common
.off_align
= bp_unpack_value (bp
, 8);
256 if (TREE_CODE (expr
) == VAR_DECL
)
258 DECL_HAS_DEBUG_EXPR_P (expr
) = (unsigned) bp_unpack_value (bp
, 1);
259 DECL_NONLOCAL_FRAME (expr
) = (unsigned) bp_unpack_value (bp
, 1);
262 if (TREE_CODE (expr
) == RESULT_DECL
263 || TREE_CODE (expr
) == PARM_DECL
264 || TREE_CODE (expr
) == VAR_DECL
)
266 DECL_BY_REFERENCE (expr
) = (unsigned) bp_unpack_value (bp
, 1);
267 if (TREE_CODE (expr
) == VAR_DECL
268 || 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);
298 if (TREE_CODE (expr
) == VAR_DECL
)
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 if (RECORD_OR_UNION_TYPE_P (expr
))
373 TYPE_TRANSPARENT_AGGR (expr
) = (unsigned) bp_unpack_value (bp
, 1);
374 TYPE_FINAL_P (expr
) = (unsigned) bp_unpack_value (bp
, 1);
376 else if (TREE_CODE (expr
) == ARRAY_TYPE
)
377 TYPE_NONALIASED_COMPONENT (expr
) = (unsigned) bp_unpack_value (bp
, 1);
378 TYPE_PACKED (expr
) = (unsigned) bp_unpack_value (bp
, 1);
379 TYPE_RESTRICT (expr
) = (unsigned) bp_unpack_value (bp
, 1);
380 TYPE_USER_ALIGN (expr
) = (unsigned) bp_unpack_value (bp
, 1);
381 TYPE_READONLY (expr
) = (unsigned) bp_unpack_value (bp
, 1);
382 TYPE_PRECISION (expr
) = bp_unpack_var_len_unsigned (bp
);
383 TYPE_ALIGN (expr
) = bp_unpack_var_len_unsigned (bp
);
384 #ifdef ACCEL_COMPILER
385 if (TYPE_ALIGN (expr
) > targetm
.absolute_biggest_alignment
)
386 TYPE_ALIGN (expr
) = targetm
.absolute_biggest_alignment
;
388 TYPE_ALIAS_SET (expr
) = bp_unpack_var_len_int (bp
);
392 /* Unpack all the non-pointer fields of the TS_BLOCK structure
393 of expression EXPR from bitpack BP. */
396 unpack_ts_block_value_fields (struct data_in
*data_in
,
397 struct bitpack_d
*bp
, tree expr
)
399 BLOCK_ABSTRACT (expr
) = (unsigned) bp_unpack_value (bp
, 1);
400 /* BLOCK_NUMBER is recomputed. */
401 stream_input_location (&BLOCK_SOURCE_LOCATION (expr
), bp
, data_in
);
404 /* Unpack all the non-pointer fields of the TS_TRANSLATION_UNIT_DECL
405 structure of expression EXPR from bitpack BP. */
408 unpack_ts_translation_unit_decl_value_fields (struct data_in
*data_in
,
409 struct bitpack_d
*bp
, tree expr
)
411 TRANSLATION_UNIT_LANGUAGE (expr
) = xstrdup (bp_unpack_string (data_in
, bp
));
412 vec_safe_push (all_translation_units
, expr
);
416 /* Unpack all the non-pointer fields of the TS_OMP_CLAUSE
417 structure of expression EXPR from bitpack BP. */
420 unpack_ts_omp_clause_value_fields (struct data_in
*data_in
,
421 struct bitpack_d
*bp
, tree expr
)
423 stream_input_location (&OMP_CLAUSE_LOCATION (expr
), bp
, data_in
);
424 switch (OMP_CLAUSE_CODE (expr
))
426 case OMP_CLAUSE_DEFAULT
:
427 OMP_CLAUSE_DEFAULT_KIND (expr
)
428 = bp_unpack_enum (bp
, omp_clause_default_kind
,
429 OMP_CLAUSE_DEFAULT_LAST
);
431 case OMP_CLAUSE_SCHEDULE
:
432 OMP_CLAUSE_SCHEDULE_KIND (expr
)
433 = bp_unpack_enum (bp
, omp_clause_schedule_kind
,
434 OMP_CLAUSE_SCHEDULE_LAST
);
436 case OMP_CLAUSE_DEPEND
:
437 OMP_CLAUSE_DEPEND_KIND (expr
)
438 = bp_unpack_enum (bp
, omp_clause_depend_kind
, OMP_CLAUSE_DEPEND_LAST
);
441 OMP_CLAUSE_SET_MAP_KIND (expr
, bp_unpack_enum (bp
, gomp_map_kind
,
444 case OMP_CLAUSE_PROC_BIND
:
445 OMP_CLAUSE_PROC_BIND_KIND (expr
)
446 = bp_unpack_enum (bp
, omp_clause_proc_bind_kind
,
447 OMP_CLAUSE_PROC_BIND_LAST
);
449 case OMP_CLAUSE_REDUCTION
:
450 OMP_CLAUSE_REDUCTION_CODE (expr
)
451 = bp_unpack_enum (bp
, tree_code
, MAX_TREE_CODES
);
459 /* Read all the language-independent bitfield values for EXPR from IB.
460 Return the partially unpacked bitpack so the caller can unpack any other
461 bitfield values that the writer may have written. */
464 streamer_read_tree_bitfields (struct lto_input_block
*ib
,
465 struct data_in
*data_in
, tree expr
)
470 /* Read the bitpack of non-pointer values from IB. */
471 bp
= streamer_read_bitpack (ib
);
473 /* The first word in BP contains the code of the tree that we
474 are about to read. */
475 code
= (enum tree_code
) bp_unpack_value (&bp
, 16);
476 lto_tag_check (lto_tree_code_to_tag (code
),
477 lto_tree_code_to_tag (TREE_CODE (expr
)));
479 /* Note that all these functions are highly sensitive to changes in
480 the types and sizes of each of the fields being packed. */
481 unpack_ts_base_value_fields (&bp
, expr
);
483 if (CODE_CONTAINS_STRUCT (code
, TS_INT_CST
))
484 unpack_ts_int_cst_value_fields (&bp
, expr
);
486 if (CODE_CONTAINS_STRUCT (code
, TS_REAL_CST
))
487 unpack_ts_real_cst_value_fields (&bp
, expr
);
489 if (CODE_CONTAINS_STRUCT (code
, TS_FIXED_CST
))
490 unpack_ts_fixed_cst_value_fields (&bp
, expr
);
492 if (CODE_CONTAINS_STRUCT (code
, TS_DECL_MINIMAL
))
493 stream_input_location (&DECL_SOURCE_LOCATION (expr
), &bp
, data_in
);
495 if (CODE_CONTAINS_STRUCT (code
, TS_DECL_COMMON
))
496 unpack_ts_decl_common_value_fields (&bp
, expr
);
498 if (CODE_CONTAINS_STRUCT (code
, TS_DECL_WRTL
))
499 unpack_ts_decl_wrtl_value_fields (&bp
, expr
);
501 if (CODE_CONTAINS_STRUCT (code
, TS_DECL_WITH_VIS
))
502 unpack_ts_decl_with_vis_value_fields (&bp
, expr
);
504 if (CODE_CONTAINS_STRUCT (code
, TS_FUNCTION_DECL
))
505 unpack_ts_function_decl_value_fields (&bp
, expr
);
507 if (CODE_CONTAINS_STRUCT (code
, TS_TYPE_COMMON
))
508 unpack_ts_type_common_value_fields (&bp
, expr
);
510 if (CODE_CONTAINS_STRUCT (code
, TS_EXP
))
512 stream_input_location (&EXPR_CHECK (expr
)->exp
.locus
, &bp
, data_in
);
514 || code
== TARGET_MEM_REF
)
516 MR_DEPENDENCE_CLIQUE (expr
)
517 = (unsigned)bp_unpack_value (&bp
, sizeof (short) * 8);
518 if (MR_DEPENDENCE_CLIQUE (expr
) != 0)
519 MR_DEPENDENCE_BASE (expr
)
520 = (unsigned)bp_unpack_value (&bp
, sizeof (short) * 8);
524 if (CODE_CONTAINS_STRUCT (code
, TS_BLOCK
))
525 unpack_ts_block_value_fields (data_in
, &bp
, expr
);
527 if (CODE_CONTAINS_STRUCT (code
, TS_TRANSLATION_UNIT_DECL
))
528 unpack_ts_translation_unit_decl_value_fields (data_in
, &bp
, expr
);
530 if (CODE_CONTAINS_STRUCT (code
, TS_OPTIMIZATION
))
531 cl_optimization_stream_in (&bp
, TREE_OPTIMIZATION (expr
));
533 if (CODE_CONTAINS_STRUCT (code
, TS_BINFO
))
535 unsigned HOST_WIDE_INT length
= bp_unpack_var_len_unsigned (&bp
);
537 vec_safe_grow (BINFO_BASE_ACCESSES (expr
), length
);
540 if (CODE_CONTAINS_STRUCT (code
, TS_CONSTRUCTOR
))
542 unsigned HOST_WIDE_INT length
= bp_unpack_var_len_unsigned (&bp
);
544 vec_safe_grow (CONSTRUCTOR_ELTS (expr
), length
);
547 #ifndef ACCEL_COMPILER
548 if (CODE_CONTAINS_STRUCT (code
, TS_TARGET_OPTION
))
550 cl_target_option_stream_in (data_in
, &bp
, TREE_TARGET_OPTION (expr
));
551 if (targetm
.target_option
.post_stream_in
)
552 targetm
.target_option
.post_stream_in (TREE_TARGET_OPTION (expr
));
556 if (code
== OMP_CLAUSE
)
557 unpack_ts_omp_clause_value_fields (data_in
, &bp
, expr
);
561 /* Materialize a new tree from input block IB using descriptors in
562 DATA_IN. The code for the new tree should match TAG. Store in
563 *IX_P the index into the reader cache where the new tree is stored. */
566 streamer_alloc_tree (struct lto_input_block
*ib
, struct data_in
*data_in
,
571 #ifdef LTO_STREAMER_DEBUG
572 HOST_WIDE_INT orig_address_in_writer
;
577 #ifdef LTO_STREAMER_DEBUG
578 /* Read the word representing the memory address for the tree
579 as it was written by the writer. This is useful when
580 debugging differences between the writer and reader. */
581 orig_address_in_writer
= streamer_read_hwi (ib
);
582 gcc_assert ((intptr_t) orig_address_in_writer
== orig_address_in_writer
);
585 code
= lto_tag_to_tree_code (tag
);
587 /* We should never see an SSA_NAME tree. Only the version numbers of
588 SSA names are ever written out. See input_ssa_names. */
589 gcc_assert (code
!= SSA_NAME
);
591 /* Instantiate a new tree using the header data. */
592 if (CODE_CONTAINS_STRUCT (code
, TS_STRING
))
593 result
= streamer_read_string_cst (data_in
, ib
);
594 else if (CODE_CONTAINS_STRUCT (code
, TS_IDENTIFIER
))
595 result
= input_identifier (data_in
, ib
);
596 else if (CODE_CONTAINS_STRUCT (code
, TS_VEC
))
598 HOST_WIDE_INT len
= streamer_read_hwi (ib
);
599 result
= make_tree_vec (len
);
601 else if (CODE_CONTAINS_STRUCT (code
, TS_VECTOR
))
603 HOST_WIDE_INT len
= streamer_read_hwi (ib
);
604 result
= make_vector (len
);
606 else if (CODE_CONTAINS_STRUCT (code
, TS_BINFO
))
608 unsigned HOST_WIDE_INT len
= streamer_read_uhwi (ib
);
609 result
= make_tree_binfo (len
);
611 else if (CODE_CONTAINS_STRUCT (code
, TS_INT_CST
))
613 unsigned HOST_WIDE_INT len
= streamer_read_uhwi (ib
);
614 unsigned HOST_WIDE_INT ext_len
= streamer_read_uhwi (ib
);
615 result
= make_int_cst (len
, ext_len
);
617 else if (code
== CALL_EXPR
)
619 unsigned HOST_WIDE_INT nargs
= streamer_read_uhwi (ib
);
620 return build_vl_exp (CALL_EXPR
, nargs
+ 3);
622 else if (code
== OMP_CLAUSE
)
624 enum omp_clause_code subcode
625 = (enum omp_clause_code
) streamer_read_uhwi (ib
);
626 return build_omp_clause (UNKNOWN_LOCATION
, subcode
);
630 /* For all other nodes, materialize the tree with a raw
632 result
= make_node (code
);
635 #ifdef LTO_STREAMER_DEBUG
636 /* Store the original address of the tree as seen by the writer
637 in RESULT's aux field. This is useful when debugging streaming
638 problems. This way, a debugging session can be started on
639 both writer and reader with a breakpoint using this address
641 lto_orig_address_map (result
, (intptr_t) orig_address_in_writer
);
648 /* Read all pointer fields in the TS_COMMON structure of EXPR from input
649 block IB. DATA_IN contains tables and descriptors for the
654 lto_input_ts_common_tree_pointers (struct lto_input_block
*ib
,
655 struct data_in
*data_in
, tree expr
)
657 if (TREE_CODE (expr
) != IDENTIFIER_NODE
)
658 TREE_TYPE (expr
) = stream_read_tree (ib
, data_in
);
662 /* Read all pointer fields in the TS_VECTOR structure of EXPR from input
663 block IB. DATA_IN contains tables and descriptors for the
667 lto_input_ts_vector_tree_pointers (struct lto_input_block
*ib
,
668 struct data_in
*data_in
, tree expr
)
671 for (i
= 0; i
< VECTOR_CST_NELTS (expr
); ++i
)
672 VECTOR_CST_ELT (expr
, i
) = stream_read_tree (ib
, data_in
);
676 /* Read all pointer fields in the TS_COMPLEX structure of EXPR from input
677 block IB. DATA_IN contains tables and descriptors for the
681 lto_input_ts_complex_tree_pointers (struct lto_input_block
*ib
,
682 struct data_in
*data_in
, tree expr
)
684 TREE_REALPART (expr
) = stream_read_tree (ib
, data_in
);
685 TREE_IMAGPART (expr
) = stream_read_tree (ib
, data_in
);
689 /* Read all pointer fields in the TS_DECL_MINIMAL structure of EXPR
690 from input block IB. DATA_IN contains tables and descriptors for the
694 lto_input_ts_decl_minimal_tree_pointers (struct lto_input_block
*ib
,
695 struct data_in
*data_in
, tree expr
)
697 DECL_NAME (expr
) = stream_read_tree (ib
, data_in
);
698 DECL_CONTEXT (expr
) = stream_read_tree (ib
, data_in
);
702 /* Read all pointer fields in the TS_DECL_COMMON structure of EXPR from
703 input block IB. DATA_IN contains tables and descriptors for the
707 lto_input_ts_decl_common_tree_pointers (struct lto_input_block
*ib
,
708 struct data_in
*data_in
, tree expr
)
710 DECL_SIZE (expr
) = stream_read_tree (ib
, data_in
);
711 DECL_SIZE_UNIT (expr
) = stream_read_tree (ib
, data_in
);
712 DECL_ATTRIBUTES (expr
) = stream_read_tree (ib
, data_in
);
714 /* Do not stream DECL_ABSTRACT_ORIGIN. We cannot handle debug information
715 for early inlining so drop it on the floor instead of ICEing in
718 if ((TREE_CODE (expr
) == VAR_DECL
719 || TREE_CODE (expr
) == PARM_DECL
)
720 && DECL_HAS_VALUE_EXPR_P (expr
))
721 SET_DECL_VALUE_EXPR (expr
, stream_read_tree (ib
, data_in
));
723 if (TREE_CODE (expr
) == VAR_DECL
)
725 tree dexpr
= stream_read_tree (ib
, data_in
);
727 SET_DECL_DEBUG_EXPR (expr
, dexpr
);
732 /* Read all pointer fields in the TS_DECL_NON_COMMON structure of
733 EXPR from input block IB. DATA_IN contains tables and descriptors for the
737 lto_input_ts_decl_non_common_tree_pointers (struct lto_input_block
*ib
,
738 struct data_in
*data_in
, tree expr
)
740 if (TREE_CODE (expr
) == TYPE_DECL
)
741 DECL_ORIGINAL_TYPE (expr
) = stream_read_tree (ib
, data_in
);
745 /* Read all pointer fields in the TS_DECL_WITH_VIS structure of EXPR
746 from input block IB. DATA_IN contains tables and descriptors for the
750 lto_input_ts_decl_with_vis_tree_pointers (struct lto_input_block
*ib
,
751 struct data_in
*data_in
, tree expr
)
755 id
= stream_read_tree (ib
, data_in
);
758 gcc_assert (TREE_CODE (id
) == IDENTIFIER_NODE
);
759 SET_DECL_ASSEMBLER_NAME (expr
, id
);
764 /* Read all pointer fields in the TS_FIELD_DECL structure of EXPR from
765 input block IB. DATA_IN contains tables and descriptors for the
769 lto_input_ts_field_decl_tree_pointers (struct lto_input_block
*ib
,
770 struct data_in
*data_in
, tree expr
)
772 DECL_FIELD_OFFSET (expr
) = stream_read_tree (ib
, data_in
);
773 DECL_BIT_FIELD_TYPE (expr
) = stream_read_tree (ib
, data_in
);
774 DECL_BIT_FIELD_REPRESENTATIVE (expr
) = stream_read_tree (ib
, data_in
);
775 DECL_FIELD_BIT_OFFSET (expr
) = stream_read_tree (ib
, data_in
);
776 DECL_FCONTEXT (expr
) = stream_read_tree (ib
, data_in
);
780 /* Read all pointer fields in the TS_FUNCTION_DECL structure of EXPR
781 from input block IB. DATA_IN contains tables and descriptors for the
785 lto_input_ts_function_decl_tree_pointers (struct lto_input_block
*ib
,
786 struct data_in
*data_in
, tree expr
)
788 DECL_VINDEX (expr
) = stream_read_tree (ib
, data_in
);
789 /* DECL_STRUCT_FUNCTION is loaded on demand by cgraph_get_body. */
790 DECL_FUNCTION_PERSONALITY (expr
) = stream_read_tree (ib
, data_in
);
791 #ifndef ACCEL_COMPILER
792 DECL_FUNCTION_SPECIFIC_TARGET (expr
) = stream_read_tree (ib
, data_in
);
794 DECL_FUNCTION_SPECIFIC_OPTIMIZATION (expr
) = stream_read_tree (ib
, data_in
);
796 /* If the file contains a function with an EH personality set,
797 then it was compiled with -fexceptions. In that case, initialize
798 the backend EH machinery. */
799 if (DECL_FUNCTION_PERSONALITY (expr
))
804 /* Read all pointer fields in the TS_TYPE_COMMON structure of EXPR from
805 input block IB. DATA_IN contains tables and descriptors for the file
809 lto_input_ts_type_common_tree_pointers (struct lto_input_block
*ib
,
810 struct data_in
*data_in
, tree expr
)
812 TYPE_SIZE (expr
) = stream_read_tree (ib
, data_in
);
813 TYPE_SIZE_UNIT (expr
) = stream_read_tree (ib
, data_in
);
814 TYPE_ATTRIBUTES (expr
) = stream_read_tree (ib
, data_in
);
815 TYPE_NAME (expr
) = stream_read_tree (ib
, data_in
);
816 /* Do not stream TYPE_POINTER_TO or TYPE_REFERENCE_TO. They will be
817 reconstructed during fixup. */
818 /* Do not stream TYPE_NEXT_VARIANT, we reconstruct the variant lists
820 TYPE_MAIN_VARIANT (expr
) = stream_read_tree (ib
, data_in
);
821 TYPE_CONTEXT (expr
) = stream_read_tree (ib
, data_in
);
822 /* TYPE_CANONICAL gets re-computed during type merging. */
823 TYPE_CANONICAL (expr
) = NULL_TREE
;
824 TYPE_STUB_DECL (expr
) = stream_read_tree (ib
, data_in
);
827 /* Read all pointer fields in the TS_TYPE_NON_COMMON structure of EXPR
828 from input block IB. DATA_IN contains tables and descriptors for the
832 lto_input_ts_type_non_common_tree_pointers (struct lto_input_block
*ib
,
833 struct data_in
*data_in
,
836 if (TREE_CODE (expr
) == ENUMERAL_TYPE
)
837 TYPE_VALUES (expr
) = stream_read_tree (ib
, data_in
);
838 else if (TREE_CODE (expr
) == ARRAY_TYPE
)
839 TYPE_DOMAIN (expr
) = stream_read_tree (ib
, data_in
);
840 else if (RECORD_OR_UNION_TYPE_P (expr
))
841 TYPE_FIELDS (expr
) = streamer_read_chain (ib
, data_in
);
842 else if (TREE_CODE (expr
) == FUNCTION_TYPE
843 || TREE_CODE (expr
) == METHOD_TYPE
)
844 TYPE_ARG_TYPES (expr
) = stream_read_tree (ib
, data_in
);
846 if (!POINTER_TYPE_P (expr
))
847 TYPE_MINVAL (expr
) = stream_read_tree (ib
, data_in
);
848 TYPE_MAXVAL (expr
) = stream_read_tree (ib
, data_in
);
849 if (RECORD_OR_UNION_TYPE_P (expr
))
850 TYPE_BINFO (expr
) = stream_read_tree (ib
, data_in
);
854 /* Read all pointer fields in the TS_LIST structure of EXPR from input
855 block IB. DATA_IN contains tables and descriptors for the
859 lto_input_ts_list_tree_pointers (struct lto_input_block
*ib
,
860 struct data_in
*data_in
, tree expr
)
862 TREE_PURPOSE (expr
) = stream_read_tree (ib
, data_in
);
863 TREE_VALUE (expr
) = stream_read_tree (ib
, data_in
);
864 TREE_CHAIN (expr
) = stream_read_tree (ib
, data_in
);
868 /* Read all pointer fields in the TS_VEC structure of EXPR from input
869 block IB. DATA_IN contains tables and descriptors for the
873 lto_input_ts_vec_tree_pointers (struct lto_input_block
*ib
,
874 struct data_in
*data_in
, tree expr
)
878 /* Note that TREE_VEC_LENGTH was read by streamer_alloc_tree to
880 for (i
= 0; i
< TREE_VEC_LENGTH (expr
); i
++)
881 TREE_VEC_ELT (expr
, i
) = stream_read_tree (ib
, data_in
);
885 /* Read all pointer fields in the TS_EXP structure of EXPR from input
886 block IB. DATA_IN contains tables and descriptors for the
891 lto_input_ts_exp_tree_pointers (struct lto_input_block
*ib
,
892 struct data_in
*data_in
, tree expr
)
897 for (i
= 0; i
< TREE_OPERAND_LENGTH (expr
); i
++)
898 TREE_OPERAND (expr
, i
) = stream_read_tree (ib
, data_in
);
900 block
= stream_read_tree (ib
, data_in
);
902 /* TODO: Block is stored in the locus information. It may make more sense to
903 to make it go via the location cache. */
906 data_in
->location_cache
.apply_location_cache ();
907 TREE_SET_BLOCK (expr
, block
);
912 /* Read all pointer fields in the TS_BLOCK structure of EXPR from input
913 block IB. DATA_IN contains tables and descriptors for the
917 lto_input_ts_block_tree_pointers (struct lto_input_block
*ib
,
918 struct data_in
*data_in
, tree expr
)
920 BLOCK_VARS (expr
) = streamer_read_chain (ib
, data_in
);
922 BLOCK_SUPERCONTEXT (expr
) = stream_read_tree (ib
, data_in
);
924 /* Stream BLOCK_ABSTRACT_ORIGIN and BLOCK_SOURCE_LOCATION for
925 the limited cases we can handle - those that represent inlined
926 function scopes. For the rest them on the floor instead of ICEing in
928 BLOCK_ABSTRACT_ORIGIN (expr
) = stream_read_tree (ib
, data_in
);
929 /* Do not stream BLOCK_NONLOCALIZED_VARS. We cannot handle debug information
930 for early inlined BLOCKs so drop it on the floor instead of ICEing in
933 /* BLOCK_FRAGMENT_ORIGIN and BLOCK_FRAGMENT_CHAIN is not live at LTO
936 /* We re-compute BLOCK_SUBBLOCKS of our parent here instead
937 of streaming it. For non-BLOCK BLOCK_SUPERCONTEXTs we still
938 stream the child relationship explicitly. */
939 if (BLOCK_SUPERCONTEXT (expr
)
940 && TREE_CODE (BLOCK_SUPERCONTEXT (expr
)) == BLOCK
)
942 BLOCK_CHAIN (expr
) = BLOCK_SUBBLOCKS (BLOCK_SUPERCONTEXT (expr
));
943 BLOCK_SUBBLOCKS (BLOCK_SUPERCONTEXT (expr
)) = expr
;
946 /* The global block is rooted at the TU decl. Hook it here to
947 avoid the need to stream in this block during WPA time. */
948 else if (BLOCK_SUPERCONTEXT (expr
)
949 && TREE_CODE (BLOCK_SUPERCONTEXT (expr
)) == TRANSLATION_UNIT_DECL
)
950 DECL_INITIAL (BLOCK_SUPERCONTEXT (expr
)) = expr
;
952 /* The function-level block is connected at the time we read in
953 function bodies for the same reason. */
957 /* Read all pointer fields in the TS_BINFO structure of EXPR from input
958 block IB. DATA_IN contains tables and descriptors for the
962 lto_input_ts_binfo_tree_pointers (struct lto_input_block
*ib
,
963 struct data_in
*data_in
, tree expr
)
968 /* Note that the number of slots in EXPR was read in
969 streamer_alloc_tree when instantiating EXPR. However, the
970 vector is empty so we cannot rely on vec::length to know how many
971 elements to read. So, this list is emitted as a 0-terminated
972 list on the writer side. */
975 t
= stream_read_tree (ib
, data_in
);
977 BINFO_BASE_BINFOS (expr
)->quick_push (t
);
981 BINFO_OFFSET (expr
) = stream_read_tree (ib
, data_in
);
982 BINFO_VTABLE (expr
) = stream_read_tree (ib
, data_in
);
983 BINFO_VPTR_FIELD (expr
) = stream_read_tree (ib
, data_in
);
985 /* The vector of BINFO_BASE_ACCESSES is pre-allocated during
986 unpacking the bitfield section. */
987 for (i
= 0; i
< vec_safe_length (BINFO_BASE_ACCESSES (expr
)); i
++)
989 tree a
= stream_read_tree (ib
, data_in
);
990 (*BINFO_BASE_ACCESSES (expr
))[i
] = a
;
992 /* Do not walk BINFO_INHERITANCE_CHAIN, BINFO_SUBVTT_INDEX
993 and BINFO_VPTR_INDEX; these are used by C++ FE only. */
997 /* Read all pointer fields in the TS_CONSTRUCTOR structure of EXPR from
998 input block IB. DATA_IN contains tables and descriptors for the
1002 lto_input_ts_constructor_tree_pointers (struct lto_input_block
*ib
,
1003 struct data_in
*data_in
, tree expr
)
1007 for (i
= 0; i
< CONSTRUCTOR_NELTS (expr
); i
++)
1010 e
.index
= stream_read_tree (ib
, data_in
);
1011 e
.value
= stream_read_tree (ib
, data_in
);
1012 (*CONSTRUCTOR_ELTS (expr
))[i
] = e
;
1017 /* Read all pointer fields in the TS_OMP_CLAUSE structure of EXPR from
1018 input block IB. DATA_IN contains tables and descriptors for the
1022 lto_input_ts_omp_clause_tree_pointers (struct lto_input_block
*ib
,
1023 struct data_in
*data_in
, tree expr
)
1027 for (i
= 0; i
< omp_clause_num_ops
[OMP_CLAUSE_CODE (expr
)]; i
++)
1028 OMP_CLAUSE_OPERAND (expr
, i
) = stream_read_tree (ib
, data_in
);
1029 OMP_CLAUSE_CHAIN (expr
) = stream_read_tree (ib
, data_in
);
1033 /* Read all pointer fields in EXPR from input block IB. DATA_IN
1034 contains tables and descriptors for the file being read. */
1037 streamer_read_tree_body (struct lto_input_block
*ib
, struct data_in
*data_in
,
1040 enum tree_code code
;
1042 code
= TREE_CODE (expr
);
1044 if (CODE_CONTAINS_STRUCT (code
, TS_TYPED
))
1045 lto_input_ts_common_tree_pointers (ib
, data_in
, expr
);
1047 if (CODE_CONTAINS_STRUCT (code
, TS_VECTOR
))
1048 lto_input_ts_vector_tree_pointers (ib
, data_in
, expr
);
1050 if (CODE_CONTAINS_STRUCT (code
, TS_COMPLEX
))
1051 lto_input_ts_complex_tree_pointers (ib
, data_in
, expr
);
1053 if (CODE_CONTAINS_STRUCT (code
, TS_DECL_MINIMAL
))
1054 lto_input_ts_decl_minimal_tree_pointers (ib
, data_in
, expr
);
1056 if (CODE_CONTAINS_STRUCT (code
, TS_DECL_COMMON
))
1057 lto_input_ts_decl_common_tree_pointers (ib
, data_in
, expr
);
1059 if (CODE_CONTAINS_STRUCT (code
, TS_DECL_NON_COMMON
))
1060 lto_input_ts_decl_non_common_tree_pointers (ib
, data_in
, expr
);
1062 if (CODE_CONTAINS_STRUCT (code
, TS_DECL_WITH_VIS
))
1063 lto_input_ts_decl_with_vis_tree_pointers (ib
, data_in
, expr
);
1065 if (CODE_CONTAINS_STRUCT (code
, TS_FIELD_DECL
))
1066 lto_input_ts_field_decl_tree_pointers (ib
, data_in
, expr
);
1068 if (CODE_CONTAINS_STRUCT (code
, TS_FUNCTION_DECL
))
1069 lto_input_ts_function_decl_tree_pointers (ib
, data_in
, expr
);
1071 if (CODE_CONTAINS_STRUCT (code
, TS_TYPE_COMMON
))
1072 lto_input_ts_type_common_tree_pointers (ib
, data_in
, expr
);
1074 if (CODE_CONTAINS_STRUCT (code
, TS_TYPE_NON_COMMON
))
1075 lto_input_ts_type_non_common_tree_pointers (ib
, data_in
, expr
);
1077 if (CODE_CONTAINS_STRUCT (code
, TS_LIST
))
1078 lto_input_ts_list_tree_pointers (ib
, data_in
, expr
);
1080 if (CODE_CONTAINS_STRUCT (code
, TS_VEC
))
1081 lto_input_ts_vec_tree_pointers (ib
, data_in
, expr
);
1083 if (CODE_CONTAINS_STRUCT (code
, TS_EXP
))
1084 lto_input_ts_exp_tree_pointers (ib
, data_in
, expr
);
1086 if (CODE_CONTAINS_STRUCT (code
, TS_BLOCK
))
1087 lto_input_ts_block_tree_pointers (ib
, data_in
, expr
);
1089 if (CODE_CONTAINS_STRUCT (code
, TS_BINFO
))
1090 lto_input_ts_binfo_tree_pointers (ib
, data_in
, expr
);
1092 if (CODE_CONTAINS_STRUCT (code
, TS_CONSTRUCTOR
))
1093 lto_input_ts_constructor_tree_pointers (ib
, data_in
, expr
);
1095 if (code
== OMP_CLAUSE
)
1096 lto_input_ts_omp_clause_tree_pointers (ib
, data_in
, expr
);
1100 /* Read an index IX from input block IB and return the tree node at
1101 DATA_IN->FILE_DATA->GLOBALS_INDEX[IX]. */
1104 streamer_get_pickled_tree (struct lto_input_block
*ib
, struct data_in
*data_in
)
1106 unsigned HOST_WIDE_INT ix
;
1108 enum LTO_tags expected_tag
;
1110 ix
= streamer_read_uhwi (ib
);
1111 expected_tag
= streamer_read_enum (ib
, LTO_tags
, LTO_NUM_TAGS
);
1113 result
= streamer_tree_cache_get_tree (data_in
->reader_cache
, ix
);
1115 && TREE_CODE (result
) == lto_tag_to_tree_code (expected_tag
));
1121 /* Read a code and class from input block IB and return the
1122 corresponding builtin. DATA_IN is as in stream_read_tree. */
1125 streamer_get_builtin_tree (struct lto_input_block
*ib
, struct data_in
*data_in
)
1127 enum built_in_class fclass
;
1128 enum built_in_function fcode
;
1129 const char *asmname
;
1132 fclass
= streamer_read_enum (ib
, built_in_class
, BUILT_IN_LAST
);
1133 gcc_assert (fclass
== BUILT_IN_NORMAL
|| fclass
== BUILT_IN_MD
);
1135 fcode
= (enum built_in_function
) streamer_read_uhwi (ib
);
1137 if (fclass
== BUILT_IN_NORMAL
)
1139 if (fcode
>= END_BUILTINS
)
1140 fatal_error (input_location
,
1141 "machine independent builtin code out of range");
1142 result
= builtin_decl_explicit (fcode
);
1144 && fcode
> BEGIN_CHKP_BUILTINS
1145 && fcode
< END_CHKP_BUILTINS
)
1147 fcode
= (enum built_in_function
) (fcode
- BEGIN_CHKP_BUILTINS
- 1);
1148 result
= builtin_decl_explicit (fcode
);
1149 result
= chkp_maybe_clone_builtin_fndecl (result
);
1151 gcc_assert (result
);
1153 else if (fclass
== BUILT_IN_MD
)
1155 result
= targetm
.builtin_decl (fcode
, true);
1156 if (!result
|| result
== error_mark_node
)
1157 fatal_error (input_location
, "target specific builtin not available");
1162 asmname
= streamer_read_string (data_in
, ib
);
1164 set_builtin_user_assembler_name (result
, asmname
);
1166 streamer_tree_cache_append (data_in
->reader_cache
, result
, 0);