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Commit | Line | Data |
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f0efc7aa DN |
1 | /* Routines for reading trees from a file stream. |
2 | ||
d1e082c2 | 3 | Copyright (C) 2011-2013 Free Software Foundation, Inc. |
f0efc7aa DN |
4 | Contributed by Diego Novillo <dnovillo@google.com> |
5 | ||
6 | This file is part of GCC. | |
7 | ||
8 | GCC is free software; you can redistribute it and/or modify it under | |
9 | the terms of the GNU General Public License as published by the Free | |
10 | Software Foundation; either version 3, or (at your option) any later | |
11 | version. | |
12 | ||
13 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
14 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
15 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
16 | for more details. | |
17 | ||
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/>. */ | |
21 | ||
22 | #include "config.h" | |
23 | #include "system.h" | |
24 | #include "coretypes.h" | |
25 | #include "diagnostic.h" | |
26 | #include "tree.h" | |
d8a2d370 | 27 | #include "stringpool.h" |
8e9055ae | 28 | #include "gimple.h" |
f0efc7aa DN |
29 | #include "tree-streamer.h" |
30 | #include "data-streamer.h" | |
31 | #include "streamer-hooks.h" | |
32 | #include "lto-streamer.h" | |
33 | ||
34 | /* Read a STRING_CST from the string table in DATA_IN using input | |
35 | block IB. */ | |
36 | ||
37 | tree | |
412288f1 | 38 | streamer_read_string_cst (struct data_in *data_in, struct lto_input_block *ib) |
f0efc7aa DN |
39 | { |
40 | unsigned int len; | |
41 | const char * ptr; | |
42 | ||
412288f1 | 43 | ptr = streamer_read_indexed_string (data_in, ib, &len); |
f0efc7aa DN |
44 | if (!ptr) |
45 | return NULL; | |
46 | return build_string (len, ptr); | |
47 | } | |
48 | ||
49 | ||
50 | /* Read an IDENTIFIER from the string table in DATA_IN using input | |
51 | block IB. */ | |
52 | ||
53 | static tree | |
54 | input_identifier (struct data_in *data_in, struct lto_input_block *ib) | |
55 | { | |
56 | unsigned int len; | |
57 | const char *ptr; | |
58 | ||
412288f1 | 59 | ptr = streamer_read_indexed_string (data_in, ib, &len); |
f0efc7aa DN |
60 | if (!ptr) |
61 | return NULL; | |
62 | return get_identifier_with_length (ptr, len); | |
63 | } | |
64 | ||
65 | ||
66 | /* Read a chain of tree nodes from input block IB. DATA_IN contains | |
67 | tables and descriptors for the file being read. */ | |
68 | ||
412288f1 DN |
69 | tree |
70 | streamer_read_chain (struct lto_input_block *ib, struct data_in *data_in) | |
f0efc7aa | 71 | { |
f0efc7aa DN |
72 | tree first, prev, curr; |
73 | ||
0127aae4 | 74 | /* The chain is written as NULL terminated list of trees. */ |
f0efc7aa | 75 | first = prev = NULL_TREE; |
0127aae4 | 76 | do |
f0efc7aa | 77 | { |
b9393656 | 78 | curr = stream_read_tree (ib, data_in); |
f0efc7aa DN |
79 | if (prev) |
80 | TREE_CHAIN (prev) = curr; | |
81 | else | |
82 | first = curr; | |
83 | ||
f0efc7aa DN |
84 | prev = curr; |
85 | } | |
0127aae4 | 86 | while (curr); |
f0efc7aa DN |
87 | |
88 | return first; | |
89 | } | |
90 | ||
91 | ||
92 | /* Unpack all the non-pointer fields of the TS_BASE structure of | |
93 | expression EXPR from bitpack BP. */ | |
94 | ||
95 | static void | |
96 | unpack_ts_base_value_fields (struct bitpack_d *bp, tree expr) | |
97 | { | |
98 | /* Note that the code for EXPR has already been unpacked to create EXPR in | |
412288f1 | 99 | streamer_alloc_tree. */ |
f0efc7aa DN |
100 | if (!TYPE_P (expr)) |
101 | { | |
102 | TREE_SIDE_EFFECTS (expr) = (unsigned) bp_unpack_value (bp, 1); | |
103 | TREE_CONSTANT (expr) = (unsigned) bp_unpack_value (bp, 1); | |
104 | TREE_READONLY (expr) = (unsigned) bp_unpack_value (bp, 1); | |
105 | ||
106 | /* TREE_PUBLIC is used on types to indicate that the type | |
107 | has a TYPE_CACHED_VALUES vector. This is not streamed out, | |
108 | so we skip it here. */ | |
109 | TREE_PUBLIC (expr) = (unsigned) bp_unpack_value (bp, 1); | |
110 | } | |
111 | else | |
112 | bp_unpack_value (bp, 4); | |
113 | TREE_ADDRESSABLE (expr) = (unsigned) bp_unpack_value (bp, 1); | |
114 | TREE_THIS_VOLATILE (expr) = (unsigned) bp_unpack_value (bp, 1); | |
115 | if (DECL_P (expr)) | |
116 | DECL_UNSIGNED (expr) = (unsigned) bp_unpack_value (bp, 1); | |
117 | else if (TYPE_P (expr)) | |
118 | TYPE_UNSIGNED (expr) = (unsigned) bp_unpack_value (bp, 1); | |
119 | else | |
120 | bp_unpack_value (bp, 1); | |
121 | TREE_ASM_WRITTEN (expr) = (unsigned) bp_unpack_value (bp, 1); | |
122 | if (TYPE_P (expr)) | |
123 | TYPE_ARTIFICIAL (expr) = (unsigned) bp_unpack_value (bp, 1); | |
124 | else | |
125 | TREE_NO_WARNING (expr) = (unsigned) bp_unpack_value (bp, 1); | |
f0efc7aa DN |
126 | TREE_NOTHROW (expr) = (unsigned) bp_unpack_value (bp, 1); |
127 | TREE_STATIC (expr) = (unsigned) bp_unpack_value (bp, 1); | |
ee03e71d RB |
128 | if (TREE_CODE (expr) != TREE_BINFO) |
129 | TREE_PRIVATE (expr) = (unsigned) bp_unpack_value (bp, 1); | |
f0efc7aa DN |
130 | TREE_PROTECTED (expr) = (unsigned) bp_unpack_value (bp, 1); |
131 | TREE_DEPRECATED (expr) = (unsigned) bp_unpack_value (bp, 1); | |
132 | if (TYPE_P (expr)) | |
875b35b4 DN |
133 | { |
134 | TYPE_SATURATING (expr) = (unsigned) bp_unpack_value (bp, 1); | |
135 | TYPE_ADDR_SPACE (expr) = (unsigned) bp_unpack_value (bp, 8); | |
136 | } | |
f0efc7aa DN |
137 | else if (TREE_CODE (expr) == SSA_NAME) |
138 | SSA_NAME_IS_DEFAULT_DEF (expr) = (unsigned) bp_unpack_value (bp, 1); | |
139 | else | |
140 | bp_unpack_value (bp, 1); | |
141 | } | |
142 | ||
143 | ||
c61f8c3b RG |
144 | /* Unpack all the non-pointer fields of the TS_INT_CST structure of |
145 | expression EXPR from bitpack BP. */ | |
146 | ||
147 | static void | |
148 | unpack_ts_int_cst_value_fields (struct bitpack_d *bp, tree expr) | |
149 | { | |
4caaa462 RB |
150 | TREE_INT_CST_LOW (expr) = bp_unpack_var_len_unsigned (bp); |
151 | TREE_INT_CST_HIGH (expr) = bp_unpack_var_len_int (bp); | |
c61f8c3b RG |
152 | } |
153 | ||
154 | ||
f0efc7aa DN |
155 | /* Unpack all the non-pointer fields of the TS_REAL_CST structure of |
156 | expression EXPR from bitpack BP. */ | |
157 | ||
158 | static void | |
159 | unpack_ts_real_cst_value_fields (struct bitpack_d *bp, tree expr) | |
160 | { | |
161 | unsigned i; | |
162 | REAL_VALUE_TYPE r; | |
163 | REAL_VALUE_TYPE *rp; | |
164 | ||
165 | r.cl = (unsigned) bp_unpack_value (bp, 2); | |
166 | r.decimal = (unsigned) bp_unpack_value (bp, 1); | |
167 | r.sign = (unsigned) bp_unpack_value (bp, 1); | |
168 | r.signalling = (unsigned) bp_unpack_value (bp, 1); | |
169 | r.canonical = (unsigned) bp_unpack_value (bp, 1); | |
170 | r.uexp = (unsigned) bp_unpack_value (bp, EXP_BITS); | |
171 | for (i = 0; i < SIGSZ; i++) | |
172 | r.sig[i] = (unsigned long) bp_unpack_value (bp, HOST_BITS_PER_LONG); | |
173 | ||
174 | rp = ggc_alloc_real_value (); | |
175 | memcpy (rp, &r, sizeof (REAL_VALUE_TYPE)); | |
176 | TREE_REAL_CST_PTR (expr) = rp; | |
177 | } | |
178 | ||
179 | ||
180 | /* Unpack all the non-pointer fields of the TS_FIXED_CST structure of | |
181 | expression EXPR from bitpack BP. */ | |
182 | ||
183 | static void | |
184 | unpack_ts_fixed_cst_value_fields (struct bitpack_d *bp, tree expr) | |
185 | { | |
f57f20bb RG |
186 | FIXED_VALUE_TYPE *fp = ggc_alloc_fixed_value (); |
187 | fp->mode = bp_unpack_enum (bp, machine_mode, MAX_MACHINE_MODE); | |
188 | fp->data.low = bp_unpack_var_len_int (bp); | |
189 | fp->data.high = bp_unpack_var_len_int (bp); | |
190 | TREE_FIXED_CST_PTR (expr) = fp; | |
f0efc7aa DN |
191 | } |
192 | ||
f0efc7aa DN |
193 | /* Unpack all the non-pointer fields of the TS_DECL_COMMON structure |
194 | of expression EXPR from bitpack BP. */ | |
195 | ||
196 | static void | |
197 | unpack_ts_decl_common_value_fields (struct bitpack_d *bp, tree expr) | |
198 | { | |
199 | DECL_MODE (expr) = bp_unpack_enum (bp, machine_mode, MAX_MACHINE_MODE); | |
200 | DECL_NONLOCAL (expr) = (unsigned) bp_unpack_value (bp, 1); | |
201 | DECL_VIRTUAL_P (expr) = (unsigned) bp_unpack_value (bp, 1); | |
202 | DECL_IGNORED_P (expr) = (unsigned) bp_unpack_value (bp, 1); | |
203 | DECL_ABSTRACT (expr) = (unsigned) bp_unpack_value (bp, 1); | |
204 | DECL_ARTIFICIAL (expr) = (unsigned) bp_unpack_value (bp, 1); | |
205 | DECL_USER_ALIGN (expr) = (unsigned) bp_unpack_value (bp, 1); | |
206 | DECL_PRESERVE_P (expr) = (unsigned) bp_unpack_value (bp, 1); | |
f0efc7aa DN |
207 | DECL_EXTERNAL (expr) = (unsigned) bp_unpack_value (bp, 1); |
208 | DECL_GIMPLE_REG_P (expr) = (unsigned) bp_unpack_value (bp, 1); | |
209 | DECL_ALIGN (expr) = (unsigned) bp_unpack_var_len_unsigned (bp); | |
210 | ||
211 | if (TREE_CODE (expr) == LABEL_DECL) | |
212 | { | |
f0efc7aa DN |
213 | EH_LANDING_PAD_NR (expr) = (int) bp_unpack_var_len_unsigned (bp); |
214 | ||
215 | /* Always assume an initial value of -1 for LABEL_DECL_UID to | |
216 | force gimple_set_bb to recreate label_to_block_map. */ | |
217 | LABEL_DECL_UID (expr) = -1; | |
218 | } | |
219 | ||
220 | if (TREE_CODE (expr) == FIELD_DECL) | |
221 | { | |
222 | DECL_PACKED (expr) = (unsigned) bp_unpack_value (bp, 1); | |
223 | DECL_NONADDRESSABLE_P (expr) = (unsigned) bp_unpack_value (bp, 1); | |
224 | expr->decl_common.off_align = bp_unpack_value (bp, 8); | |
225 | } | |
226 | ||
0f1e8842 | 227 | if (TREE_CODE (expr) == VAR_DECL) |
839b422f RB |
228 | { |
229 | DECL_HAS_DEBUG_EXPR_P (expr) = (unsigned) bp_unpack_value (bp, 1); | |
230 | DECL_NONLOCAL_FRAME (expr) = (unsigned) bp_unpack_value (bp, 1); | |
231 | } | |
0f1e8842 | 232 | |
f0efc7aa DN |
233 | if (TREE_CODE (expr) == RESULT_DECL |
234 | || TREE_CODE (expr) == PARM_DECL | |
235 | || TREE_CODE (expr) == VAR_DECL) | |
236 | { | |
237 | DECL_BY_REFERENCE (expr) = (unsigned) bp_unpack_value (bp, 1); | |
238 | if (TREE_CODE (expr) == VAR_DECL | |
239 | || TREE_CODE (expr) == PARM_DECL) | |
240 | DECL_HAS_VALUE_EXPR_P (expr) = (unsigned) bp_unpack_value (bp, 1); | |
f0efc7aa DN |
241 | } |
242 | } | |
243 | ||
244 | ||
245 | /* Unpack all the non-pointer fields of the TS_DECL_WRTL structure | |
246 | of expression EXPR from bitpack BP. */ | |
247 | ||
248 | static void | |
249 | unpack_ts_decl_wrtl_value_fields (struct bitpack_d *bp, tree expr) | |
250 | { | |
251 | DECL_REGISTER (expr) = (unsigned) bp_unpack_value (bp, 1); | |
252 | } | |
253 | ||
254 | ||
255 | /* Unpack all the non-pointer fields of the TS_DECL_WITH_VIS structure | |
256 | of expression EXPR from bitpack BP. */ | |
257 | ||
258 | static void | |
259 | unpack_ts_decl_with_vis_value_fields (struct bitpack_d *bp, tree expr) | |
260 | { | |
f0efc7aa DN |
261 | DECL_COMMON (expr) = (unsigned) bp_unpack_value (bp, 1); |
262 | DECL_DLLIMPORT_P (expr) = (unsigned) bp_unpack_value (bp, 1); | |
263 | DECL_WEAK (expr) = (unsigned) bp_unpack_value (bp, 1); | |
264 | DECL_SEEN_IN_BIND_EXPR_P (expr) = (unsigned) bp_unpack_value (bp, 1); | |
265 | DECL_COMDAT (expr) = (unsigned) bp_unpack_value (bp, 1); | |
266 | DECL_VISIBILITY (expr) = (enum symbol_visibility) bp_unpack_value (bp, 2); | |
267 | DECL_VISIBILITY_SPECIFIED (expr) = (unsigned) bp_unpack_value (bp, 1); | |
268 | ||
269 | if (TREE_CODE (expr) == VAR_DECL) | |
270 | { | |
271 | DECL_HARD_REGISTER (expr) = (unsigned) bp_unpack_value (bp, 1); | |
f0efc7aa DN |
272 | DECL_IN_CONSTANT_POOL (expr) = (unsigned) bp_unpack_value (bp, 1); |
273 | DECL_TLS_MODEL (expr) = (enum tls_model) bp_unpack_value (bp, 3); | |
274 | } | |
275 | ||
0170f33c JH |
276 | if (TREE_CODE (expr) == FUNCTION_DECL) |
277 | { | |
278 | DECL_FINAL_P (expr) = (unsigned) bp_unpack_value (bp, 1); | |
279 | DECL_CXX_CONSTRUCTOR_P (expr) = (unsigned) bp_unpack_value (bp, 1); | |
280 | DECL_CXX_DESTRUCTOR_P (expr) = (unsigned) bp_unpack_value (bp, 1); | |
281 | } | |
f0efc7aa DN |
282 | if (VAR_OR_FUNCTION_DECL_P (expr)) |
283 | { | |
284 | priority_type p; | |
285 | p = (priority_type) bp_unpack_var_len_unsigned (bp); | |
286 | SET_DECL_INIT_PRIORITY (expr, p); | |
287 | } | |
288 | } | |
289 | ||
290 | ||
291 | /* Unpack all the non-pointer fields of the TS_FUNCTION_DECL structure | |
292 | of expression EXPR from bitpack BP. */ | |
293 | ||
294 | static void | |
295 | unpack_ts_function_decl_value_fields (struct bitpack_d *bp, tree expr) | |
296 | { | |
297 | DECL_BUILT_IN_CLASS (expr) = bp_unpack_enum (bp, built_in_class, | |
298 | BUILT_IN_LAST); | |
299 | DECL_STATIC_CONSTRUCTOR (expr) = (unsigned) bp_unpack_value (bp, 1); | |
300 | DECL_STATIC_DESTRUCTOR (expr) = (unsigned) bp_unpack_value (bp, 1); | |
301 | DECL_UNINLINABLE (expr) = (unsigned) bp_unpack_value (bp, 1); | |
302 | DECL_POSSIBLY_INLINED (expr) = (unsigned) bp_unpack_value (bp, 1); | |
303 | DECL_IS_NOVOPS (expr) = (unsigned) bp_unpack_value (bp, 1); | |
304 | DECL_IS_RETURNS_TWICE (expr) = (unsigned) bp_unpack_value (bp, 1); | |
305 | DECL_IS_MALLOC (expr) = (unsigned) bp_unpack_value (bp, 1); | |
306 | DECL_IS_OPERATOR_NEW (expr) = (unsigned) bp_unpack_value (bp, 1); | |
307 | DECL_DECLARED_INLINE_P (expr) = (unsigned) bp_unpack_value (bp, 1); | |
308 | DECL_STATIC_CHAIN (expr) = (unsigned) bp_unpack_value (bp, 1); | |
309 | DECL_NO_INLINE_WARNING_P (expr) = (unsigned) bp_unpack_value (bp, 1); | |
310 | DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT (expr) | |
311 | = (unsigned) bp_unpack_value (bp, 1); | |
312 | DECL_NO_LIMIT_STACK (expr) = (unsigned) bp_unpack_value (bp, 1); | |
313 | DECL_DISREGARD_INLINE_LIMITS (expr) = (unsigned) bp_unpack_value (bp, 1); | |
314 | DECL_PURE_P (expr) = (unsigned) bp_unpack_value (bp, 1); | |
315 | DECL_LOOPING_CONST_OR_PURE_P (expr) = (unsigned) bp_unpack_value (bp, 1); | |
316 | if (DECL_BUILT_IN_CLASS (expr) != NOT_BUILT_IN) | |
317 | { | |
318 | DECL_FUNCTION_CODE (expr) = (enum built_in_function) bp_unpack_value (bp, | |
319 | 11); | |
320 | if (DECL_BUILT_IN_CLASS (expr) == BUILT_IN_NORMAL | |
321 | && DECL_FUNCTION_CODE (expr) >= END_BUILTINS) | |
322 | fatal_error ("machine independent builtin code out of range"); | |
323 | else if (DECL_BUILT_IN_CLASS (expr) == BUILT_IN_MD) | |
324 | { | |
325 | tree result = targetm.builtin_decl (DECL_FUNCTION_CODE (expr), true); | |
326 | if (!result || result == error_mark_node) | |
327 | fatal_error ("target specific builtin not available"); | |
328 | } | |
329 | } | |
330 | if (DECL_STATIC_DESTRUCTOR (expr)) | |
331 | { | |
332 | priority_type p; | |
333 | p = (priority_type) bp_unpack_var_len_unsigned (bp); | |
334 | SET_DECL_FINI_PRIORITY (expr, p); | |
335 | } | |
336 | } | |
337 | ||
338 | ||
339 | /* Unpack all the non-pointer fields of the TS_TYPE_COMMON structure | |
340 | of expression EXPR from bitpack BP. */ | |
341 | ||
342 | static void | |
343 | unpack_ts_type_common_value_fields (struct bitpack_d *bp, tree expr) | |
344 | { | |
345 | enum machine_mode mode; | |
346 | ||
347 | mode = bp_unpack_enum (bp, machine_mode, MAX_MACHINE_MODE); | |
348 | SET_TYPE_MODE (expr, mode); | |
349 | TYPE_STRING_FLAG (expr) = (unsigned) bp_unpack_value (bp, 1); | |
350 | TYPE_NO_FORCE_BLK (expr) = (unsigned) bp_unpack_value (bp, 1); | |
351 | TYPE_NEEDS_CONSTRUCTING (expr) = (unsigned) bp_unpack_value (bp, 1); | |
352 | if (RECORD_OR_UNION_TYPE_P (expr)) | |
0170f33c JH |
353 | { |
354 | TYPE_TRANSPARENT_AGGR (expr) = (unsigned) bp_unpack_value (bp, 1); | |
355 | TYPE_FINAL_P (expr) = (unsigned) bp_unpack_value (bp, 1); | |
356 | } | |
04208228 EB |
357 | else if (TREE_CODE (expr) == ARRAY_TYPE) |
358 | TYPE_NONALIASED_COMPONENT (expr) = (unsigned) bp_unpack_value (bp, 1); | |
f0efc7aa DN |
359 | TYPE_PACKED (expr) = (unsigned) bp_unpack_value (bp, 1); |
360 | TYPE_RESTRICT (expr) = (unsigned) bp_unpack_value (bp, 1); | |
f0efc7aa DN |
361 | TYPE_USER_ALIGN (expr) = (unsigned) bp_unpack_value (bp, 1); |
362 | TYPE_READONLY (expr) = (unsigned) bp_unpack_value (bp, 1); | |
363 | TYPE_PRECISION (expr) = bp_unpack_var_len_unsigned (bp); | |
364 | TYPE_ALIGN (expr) = bp_unpack_var_len_unsigned (bp); | |
365 | TYPE_ALIAS_SET (expr) = bp_unpack_var_len_int (bp); | |
366 | } | |
367 | ||
368 | ||
369 | /* Unpack all the non-pointer fields of the TS_BLOCK structure | |
370 | of expression EXPR from bitpack BP. */ | |
371 | ||
372 | static void | |
7cb7d208 RB |
373 | unpack_ts_block_value_fields (struct data_in *data_in, |
374 | struct bitpack_d *bp, tree expr) | |
f0efc7aa DN |
375 | { |
376 | BLOCK_ABSTRACT (expr) = (unsigned) bp_unpack_value (bp, 1); | |
377 | /* BLOCK_NUMBER is recomputed. */ | |
7cb7d208 | 378 | BLOCK_SOURCE_LOCATION (expr) = stream_input_location (bp, data_in); |
f0efc7aa DN |
379 | } |
380 | ||
381 | /* Unpack all the non-pointer fields of the TS_TRANSLATION_UNIT_DECL | |
382 | structure of expression EXPR from bitpack BP. */ | |
383 | ||
384 | static void | |
8135e1e6 RB |
385 | unpack_ts_translation_unit_decl_value_fields (struct data_in *data_in, |
386 | struct bitpack_d *bp, tree expr) | |
f0efc7aa | 387 | { |
8135e1e6 | 388 | TRANSLATION_UNIT_LANGUAGE (expr) = xstrdup (bp_unpack_string (data_in, bp)); |
9771b263 | 389 | vec_safe_push (all_translation_units, expr); |
f0efc7aa DN |
390 | } |
391 | ||
0889c5c3 RB |
392 | /* Unpack a TS_TARGET_OPTION tree from BP into EXPR. */ |
393 | ||
394 | static void | |
395 | unpack_ts_target_option (struct bitpack_d *bp, tree expr) | |
396 | { | |
397 | unsigned i, len; | |
398 | struct cl_target_option *t = TREE_TARGET_OPTION (expr); | |
399 | ||
400 | len = sizeof (struct cl_target_option); | |
401 | for (i = 0; i < len; i++) | |
402 | ((unsigned char *)t)[i] = bp_unpack_value (bp, 8); | |
403 | if (bp_unpack_value (bp, 32) != 0x12345678) | |
404 | fatal_error ("cl_target_option size mismatch in LTO reader and writer"); | |
405 | } | |
406 | ||
407 | /* Unpack a TS_OPTIMIZATION tree from BP into EXPR. */ | |
408 | ||
409 | static void | |
410 | unpack_ts_optimization (struct bitpack_d *bp, tree expr) | |
411 | { | |
412 | unsigned i, len; | |
413 | struct cl_optimization *t = TREE_OPTIMIZATION (expr); | |
414 | ||
415 | len = sizeof (struct cl_optimization); | |
416 | for (i = 0; i < len; i++) | |
417 | ((unsigned char *)t)[i] = bp_unpack_value (bp, 8); | |
418 | if (bp_unpack_value (bp, 32) != 0x12345678) | |
419 | fatal_error ("cl_optimization size mismatch in LTO reader and writer"); | |
420 | } | |
421 | ||
422 | ||
f0efc7aa DN |
423 | /* Unpack all the non-pointer fields in EXPR into a bit pack. */ |
424 | ||
425 | static void | |
7cb7d208 | 426 | unpack_value_fields (struct data_in *data_in, struct bitpack_d *bp, tree expr) |
f0efc7aa DN |
427 | { |
428 | enum tree_code code; | |
429 | ||
430 | code = TREE_CODE (expr); | |
431 | ||
432 | /* Note that all these functions are highly sensitive to changes in | |
433 | the types and sizes of each of the fields being packed. */ | |
434 | unpack_ts_base_value_fields (bp, expr); | |
435 | ||
c61f8c3b RG |
436 | if (CODE_CONTAINS_STRUCT (code, TS_INT_CST)) |
437 | unpack_ts_int_cst_value_fields (bp, expr); | |
438 | ||
f0efc7aa DN |
439 | if (CODE_CONTAINS_STRUCT (code, TS_REAL_CST)) |
440 | unpack_ts_real_cst_value_fields (bp, expr); | |
441 | ||
442 | if (CODE_CONTAINS_STRUCT (code, TS_FIXED_CST)) | |
443 | unpack_ts_fixed_cst_value_fields (bp, expr); | |
444 | ||
7cb7d208 RB |
445 | if (CODE_CONTAINS_STRUCT (code, TS_DECL_MINIMAL)) |
446 | DECL_SOURCE_LOCATION (expr) = stream_input_location (bp, data_in); | |
447 | ||
f0efc7aa DN |
448 | if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON)) |
449 | unpack_ts_decl_common_value_fields (bp, expr); | |
450 | ||
451 | if (CODE_CONTAINS_STRUCT (code, TS_DECL_WRTL)) | |
452 | unpack_ts_decl_wrtl_value_fields (bp, expr); | |
453 | ||
454 | if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS)) | |
455 | unpack_ts_decl_with_vis_value_fields (bp, expr); | |
456 | ||
457 | if (CODE_CONTAINS_STRUCT (code, TS_FUNCTION_DECL)) | |
458 | unpack_ts_function_decl_value_fields (bp, expr); | |
459 | ||
460 | if (CODE_CONTAINS_STRUCT (code, TS_TYPE_COMMON)) | |
461 | unpack_ts_type_common_value_fields (bp, expr); | |
462 | ||
7cb7d208 RB |
463 | if (CODE_CONTAINS_STRUCT (code, TS_EXP)) |
464 | SET_EXPR_LOCATION (expr, stream_input_location (bp, data_in)); | |
465 | ||
f0efc7aa | 466 | if (CODE_CONTAINS_STRUCT (code, TS_BLOCK)) |
7cb7d208 | 467 | unpack_ts_block_value_fields (data_in, bp, expr); |
f0efc7aa DN |
468 | |
469 | if (CODE_CONTAINS_STRUCT (code, TS_TRANSLATION_UNIT_DECL)) | |
8135e1e6 | 470 | unpack_ts_translation_unit_decl_value_fields (data_in, bp, expr); |
0889c5c3 RB |
471 | |
472 | if (CODE_CONTAINS_STRUCT (code, TS_TARGET_OPTION)) | |
473 | unpack_ts_target_option (bp, expr); | |
474 | ||
475 | if (CODE_CONTAINS_STRUCT (code, TS_OPTIMIZATION)) | |
476 | unpack_ts_optimization (bp, expr); | |
0127aae4 RG |
477 | |
478 | if (CODE_CONTAINS_STRUCT (code, TS_BINFO)) | |
479 | { | |
480 | unsigned HOST_WIDE_INT length = bp_unpack_var_len_unsigned (bp); | |
481 | if (length > 0) | |
9771b263 | 482 | vec_safe_grow (BINFO_BASE_ACCESSES (expr), length); |
0127aae4 RG |
483 | } |
484 | ||
485 | if (CODE_CONTAINS_STRUCT (code, TS_CONSTRUCTOR)) | |
486 | { | |
487 | unsigned HOST_WIDE_INT length = bp_unpack_var_len_unsigned (bp); | |
488 | if (length > 0) | |
9771b263 | 489 | vec_safe_grow (CONSTRUCTOR_ELTS (expr), length); |
0127aae4 | 490 | } |
b9393656 DN |
491 | } |
492 | ||
493 | ||
494 | /* Read all the language-independent bitfield values for EXPR from IB. | |
495 | Return the partially unpacked bitpack so the caller can unpack any other | |
496 | bitfield values that the writer may have written. */ | |
f0efc7aa | 497 | |
b9393656 | 498 | struct bitpack_d |
7cb7d208 RB |
499 | streamer_read_tree_bitfields (struct lto_input_block *ib, |
500 | struct data_in *data_in, tree expr) | |
b9393656 DN |
501 | { |
502 | enum tree_code code; | |
503 | struct bitpack_d bp; | |
504 | ||
505 | /* Read the bitpack of non-pointer values from IB. */ | |
412288f1 | 506 | bp = streamer_read_bitpack (ib); |
b9393656 DN |
507 | |
508 | /* The first word in BP contains the code of the tree that we | |
509 | are about to read. */ | |
510 | code = (enum tree_code) bp_unpack_value (&bp, 16); | |
511 | lto_tag_check (lto_tree_code_to_tag (code), | |
512 | lto_tree_code_to_tag (TREE_CODE (expr))); | |
513 | ||
514 | /* Unpack all the value fields from BP. */ | |
7cb7d208 | 515 | unpack_value_fields (data_in, &bp, expr); |
b9393656 DN |
516 | |
517 | return bp; | |
f0efc7aa DN |
518 | } |
519 | ||
520 | ||
521 | /* Materialize a new tree from input block IB using descriptors in | |
522 | DATA_IN. The code for the new tree should match TAG. Store in | |
523 | *IX_P the index into the reader cache where the new tree is stored. */ | |
524 | ||
b9393656 | 525 | tree |
412288f1 DN |
526 | streamer_alloc_tree (struct lto_input_block *ib, struct data_in *data_in, |
527 | enum LTO_tags tag) | |
f0efc7aa | 528 | { |
f0efc7aa DN |
529 | enum tree_code code; |
530 | tree result; | |
531 | #ifdef LTO_STREAMER_DEBUG | |
532 | HOST_WIDEST_INT orig_address_in_writer; | |
533 | #endif | |
534 | ||
535 | result = NULL_TREE; | |
536 | ||
537 | #ifdef LTO_STREAMER_DEBUG | |
538 | /* Read the word representing the memory address for the tree | |
539 | as it was written by the writer. This is useful when | |
540 | debugging differences between the writer and reader. */ | |
412288f1 | 541 | orig_address_in_writer = streamer_read_hwi (ib); |
f0efc7aa DN |
542 | gcc_assert ((intptr_t) orig_address_in_writer == orig_address_in_writer); |
543 | #endif | |
544 | ||
545 | code = lto_tag_to_tree_code (tag); | |
546 | ||
547 | /* We should never see an SSA_NAME tree. Only the version numbers of | |
548 | SSA names are ever written out. See input_ssa_names. */ | |
549 | gcc_assert (code != SSA_NAME); | |
550 | ||
551 | /* Instantiate a new tree using the header data. */ | |
552 | if (CODE_CONTAINS_STRUCT (code, TS_STRING)) | |
412288f1 | 553 | result = streamer_read_string_cst (data_in, ib); |
f0efc7aa DN |
554 | else if (CODE_CONTAINS_STRUCT (code, TS_IDENTIFIER)) |
555 | result = input_identifier (data_in, ib); | |
556 | else if (CODE_CONTAINS_STRUCT (code, TS_VEC)) | |
557 | { | |
412288f1 | 558 | HOST_WIDE_INT len = streamer_read_hwi (ib); |
f0efc7aa DN |
559 | result = make_tree_vec (len); |
560 | } | |
d2a12ae7 RG |
561 | else if (CODE_CONTAINS_STRUCT (code, TS_VECTOR)) |
562 | { | |
563 | HOST_WIDE_INT len = streamer_read_hwi (ib); | |
ac9a074c | 564 | result = make_vector (len); |
d2a12ae7 | 565 | } |
f0efc7aa DN |
566 | else if (CODE_CONTAINS_STRUCT (code, TS_BINFO)) |
567 | { | |
412288f1 | 568 | unsigned HOST_WIDE_INT len = streamer_read_uhwi (ib); |
f0efc7aa DN |
569 | result = make_tree_binfo (len); |
570 | } | |
b9393656 DN |
571 | else if (code == CALL_EXPR) |
572 | { | |
412288f1 | 573 | unsigned HOST_WIDE_INT nargs = streamer_read_uhwi (ib); |
b9393656 DN |
574 | return build_vl_exp (CALL_EXPR, nargs + 3); |
575 | } | |
f0efc7aa DN |
576 | else |
577 | { | |
b9393656 | 578 | /* For all other nodes, materialize the tree with a raw |
f0efc7aa | 579 | make_node call. */ |
b9393656 | 580 | result = make_node (code); |
f0efc7aa DN |
581 | } |
582 | ||
583 | #ifdef LTO_STREAMER_DEBUG | |
584 | /* Store the original address of the tree as seen by the writer | |
585 | in RESULT's aux field. This is useful when debugging streaming | |
586 | problems. This way, a debugging session can be started on | |
587 | both writer and reader with a breakpoint using this address | |
588 | value in both. */ | |
589 | lto_orig_address_map (result, (intptr_t) orig_address_in_writer); | |
590 | #endif | |
591 | ||
f0efc7aa DN |
592 | return result; |
593 | } | |
594 | ||
595 | ||
596 | /* Read all pointer fields in the TS_COMMON structure of EXPR from input | |
597 | block IB. DATA_IN contains tables and descriptors for the | |
598 | file being read. */ | |
599 | ||
600 | ||
601 | static void | |
602 | lto_input_ts_common_tree_pointers (struct lto_input_block *ib, | |
603 | struct data_in *data_in, tree expr) | |
604 | { | |
605 | if (TREE_CODE (expr) != IDENTIFIER_NODE) | |
b9393656 | 606 | TREE_TYPE (expr) = stream_read_tree (ib, data_in); |
f0efc7aa DN |
607 | } |
608 | ||
609 | ||
610 | /* Read all pointer fields in the TS_VECTOR structure of EXPR from input | |
611 | block IB. DATA_IN contains tables and descriptors for the | |
612 | file being read. */ | |
613 | ||
614 | static void | |
615 | lto_input_ts_vector_tree_pointers (struct lto_input_block *ib, | |
616 | struct data_in *data_in, tree expr) | |
617 | { | |
d2a12ae7 RG |
618 | unsigned i; |
619 | for (i = 0; i < VECTOR_CST_NELTS (expr); ++i) | |
620 | VECTOR_CST_ELT (expr, i) = stream_read_tree (ib, data_in); | |
f0efc7aa DN |
621 | } |
622 | ||
623 | ||
624 | /* Read all pointer fields in the TS_COMPLEX structure of EXPR from input | |
625 | block IB. DATA_IN contains tables and descriptors for the | |
626 | file being read. */ | |
627 | ||
628 | static void | |
629 | lto_input_ts_complex_tree_pointers (struct lto_input_block *ib, | |
630 | struct data_in *data_in, tree expr) | |
631 | { | |
b9393656 DN |
632 | TREE_REALPART (expr) = stream_read_tree (ib, data_in); |
633 | TREE_IMAGPART (expr) = stream_read_tree (ib, data_in); | |
f0efc7aa DN |
634 | } |
635 | ||
636 | ||
637 | /* Read all pointer fields in the TS_DECL_MINIMAL structure of EXPR | |
638 | from input block IB. DATA_IN contains tables and descriptors for the | |
639 | file being read. */ | |
640 | ||
641 | static void | |
642 | lto_input_ts_decl_minimal_tree_pointers (struct lto_input_block *ib, | |
643 | struct data_in *data_in, tree expr) | |
644 | { | |
b9393656 DN |
645 | DECL_NAME (expr) = stream_read_tree (ib, data_in); |
646 | DECL_CONTEXT (expr) = stream_read_tree (ib, data_in); | |
f0efc7aa DN |
647 | } |
648 | ||
649 | ||
650 | /* Read all pointer fields in the TS_DECL_COMMON structure of EXPR from | |
651 | input block IB. DATA_IN contains tables and descriptors for the | |
652 | file being read. */ | |
653 | ||
654 | static void | |
655 | lto_input_ts_decl_common_tree_pointers (struct lto_input_block *ib, | |
656 | struct data_in *data_in, tree expr) | |
657 | { | |
b9393656 DN |
658 | DECL_SIZE (expr) = stream_read_tree (ib, data_in); |
659 | DECL_SIZE_UNIT (expr) = stream_read_tree (ib, data_in); | |
660 | DECL_ATTRIBUTES (expr) = stream_read_tree (ib, data_in); | |
f0efc7aa DN |
661 | |
662 | /* Do not stream DECL_ABSTRACT_ORIGIN. We cannot handle debug information | |
663 | for early inlining so drop it on the floor instead of ICEing in | |
664 | dwarf2out.c. */ | |
665 | ||
f0efc7aa DN |
666 | if ((TREE_CODE (expr) == VAR_DECL |
667 | || TREE_CODE (expr) == PARM_DECL) | |
668 | && DECL_HAS_VALUE_EXPR_P (expr)) | |
b9393656 | 669 | SET_DECL_VALUE_EXPR (expr, stream_read_tree (ib, data_in)); |
f0efc7aa DN |
670 | |
671 | if (TREE_CODE (expr) == VAR_DECL) | |
672 | { | |
b9393656 | 673 | tree dexpr = stream_read_tree (ib, data_in); |
f0efc7aa DN |
674 | if (dexpr) |
675 | SET_DECL_DEBUG_EXPR (expr, dexpr); | |
676 | } | |
677 | } | |
678 | ||
679 | ||
680 | /* Read all pointer fields in the TS_DECL_NON_COMMON structure of | |
681 | EXPR from input block IB. DATA_IN contains tables and descriptors for the | |
682 | file being read. */ | |
683 | ||
684 | static void | |
685 | lto_input_ts_decl_non_common_tree_pointers (struct lto_input_block *ib, | |
686 | struct data_in *data_in, tree expr) | |
687 | { | |
815effe1 | 688 | if (TREE_CODE (expr) == TYPE_DECL) |
ea973bad | 689 | DECL_ORIGINAL_TYPE (expr) = stream_read_tree (ib, data_in); |
b9393656 | 690 | DECL_VINDEX (expr) = stream_read_tree (ib, data_in); |
f0efc7aa DN |
691 | } |
692 | ||
693 | ||
694 | /* Read all pointer fields in the TS_DECL_WITH_VIS structure of EXPR | |
695 | from input block IB. DATA_IN contains tables and descriptors for the | |
696 | file being read. */ | |
697 | ||
698 | static void | |
699 | lto_input_ts_decl_with_vis_tree_pointers (struct lto_input_block *ib, | |
700 | struct data_in *data_in, tree expr) | |
701 | { | |
702 | tree id; | |
703 | ||
b9393656 | 704 | id = stream_read_tree (ib, data_in); |
f0efc7aa DN |
705 | if (id) |
706 | { | |
707 | gcc_assert (TREE_CODE (id) == IDENTIFIER_NODE); | |
708 | SET_DECL_ASSEMBLER_NAME (expr, id); | |
709 | } | |
710 | ||
b9393656 DN |
711 | DECL_SECTION_NAME (expr) = stream_read_tree (ib, data_in); |
712 | DECL_COMDAT_GROUP (expr) = stream_read_tree (ib, data_in); | |
f0efc7aa DN |
713 | } |
714 | ||
715 | ||
716 | /* Read all pointer fields in the TS_FIELD_DECL structure of EXPR from | |
717 | input block IB. DATA_IN contains tables and descriptors for the | |
718 | file being read. */ | |
719 | ||
720 | static void | |
721 | lto_input_ts_field_decl_tree_pointers (struct lto_input_block *ib, | |
722 | struct data_in *data_in, tree expr) | |
723 | { | |
b9393656 DN |
724 | DECL_FIELD_OFFSET (expr) = stream_read_tree (ib, data_in); |
725 | DECL_BIT_FIELD_TYPE (expr) = stream_read_tree (ib, data_in); | |
26c71b93 | 726 | DECL_BIT_FIELD_REPRESENTATIVE (expr) = stream_read_tree (ib, data_in); |
b9393656 DN |
727 | DECL_FIELD_BIT_OFFSET (expr) = stream_read_tree (ib, data_in); |
728 | DECL_FCONTEXT (expr) = stream_read_tree (ib, data_in); | |
f0efc7aa DN |
729 | } |
730 | ||
731 | ||
732 | /* Read all pointer fields in the TS_FUNCTION_DECL structure of EXPR | |
733 | from input block IB. DATA_IN contains tables and descriptors for the | |
734 | file being read. */ | |
735 | ||
736 | static void | |
737 | lto_input_ts_function_decl_tree_pointers (struct lto_input_block *ib, | |
738 | struct data_in *data_in, tree expr) | |
739 | { | |
740 | /* DECL_STRUCT_FUNCTION is handled by lto_input_function. FIXME lto, | |
741 | maybe it should be handled here? */ | |
b9393656 DN |
742 | DECL_FUNCTION_PERSONALITY (expr) = stream_read_tree (ib, data_in); |
743 | DECL_FUNCTION_SPECIFIC_TARGET (expr) = stream_read_tree (ib, data_in); | |
744 | DECL_FUNCTION_SPECIFIC_OPTIMIZATION (expr) = stream_read_tree (ib, data_in); | |
f0efc7aa DN |
745 | |
746 | /* If the file contains a function with an EH personality set, | |
747 | then it was compiled with -fexceptions. In that case, initialize | |
748 | the backend EH machinery. */ | |
749 | if (DECL_FUNCTION_PERSONALITY (expr)) | |
750 | lto_init_eh (); | |
751 | } | |
752 | ||
753 | ||
754 | /* Read all pointer fields in the TS_TYPE_COMMON structure of EXPR from | |
755 | input block IB. DATA_IN contains tables and descriptors for the file | |
756 | being read. */ | |
757 | ||
758 | static void | |
759 | lto_input_ts_type_common_tree_pointers (struct lto_input_block *ib, | |
760 | struct data_in *data_in, tree expr) | |
761 | { | |
b9393656 DN |
762 | TYPE_SIZE (expr) = stream_read_tree (ib, data_in); |
763 | TYPE_SIZE_UNIT (expr) = stream_read_tree (ib, data_in); | |
764 | TYPE_ATTRIBUTES (expr) = stream_read_tree (ib, data_in); | |
765 | TYPE_NAME (expr) = stream_read_tree (ib, data_in); | |
f0efc7aa DN |
766 | /* Do not stream TYPE_POINTER_TO or TYPE_REFERENCE_TO. They will be |
767 | reconstructed during fixup. */ | |
768 | /* Do not stream TYPE_NEXT_VARIANT, we reconstruct the variant lists | |
769 | during fixup. */ | |
b9393656 DN |
770 | TYPE_MAIN_VARIANT (expr) = stream_read_tree (ib, data_in); |
771 | TYPE_CONTEXT (expr) = stream_read_tree (ib, data_in); | |
f0efc7aa DN |
772 | /* TYPE_CANONICAL gets re-computed during type merging. */ |
773 | TYPE_CANONICAL (expr) = NULL_TREE; | |
b9393656 | 774 | TYPE_STUB_DECL (expr) = stream_read_tree (ib, data_in); |
f0efc7aa DN |
775 | } |
776 | ||
777 | /* Read all pointer fields in the TS_TYPE_NON_COMMON structure of EXPR | |
778 | from input block IB. DATA_IN contains tables and descriptors for the | |
779 | file being read. */ | |
780 | ||
781 | static void | |
782 | lto_input_ts_type_non_common_tree_pointers (struct lto_input_block *ib, | |
783 | struct data_in *data_in, | |
784 | tree expr) | |
785 | { | |
786 | if (TREE_CODE (expr) == ENUMERAL_TYPE) | |
b9393656 | 787 | TYPE_VALUES (expr) = stream_read_tree (ib, data_in); |
f0efc7aa | 788 | else if (TREE_CODE (expr) == ARRAY_TYPE) |
b9393656 | 789 | TYPE_DOMAIN (expr) = stream_read_tree (ib, data_in); |
f0efc7aa | 790 | else if (RECORD_OR_UNION_TYPE_P (expr)) |
4acd1c84 | 791 | TYPE_FIELDS (expr) = streamer_read_chain (ib, data_in); |
f0efc7aa DN |
792 | else if (TREE_CODE (expr) == FUNCTION_TYPE |
793 | || TREE_CODE (expr) == METHOD_TYPE) | |
b9393656 | 794 | TYPE_ARG_TYPES (expr) = stream_read_tree (ib, data_in); |
f0efc7aa DN |
795 | |
796 | if (!POINTER_TYPE_P (expr)) | |
b9393656 DN |
797 | TYPE_MINVAL (expr) = stream_read_tree (ib, data_in); |
798 | TYPE_MAXVAL (expr) = stream_read_tree (ib, data_in); | |
f0efc7aa | 799 | if (RECORD_OR_UNION_TYPE_P (expr)) |
b9393656 | 800 | TYPE_BINFO (expr) = stream_read_tree (ib, data_in); |
f0efc7aa DN |
801 | } |
802 | ||
803 | ||
804 | /* Read all pointer fields in the TS_LIST structure of EXPR from input | |
805 | block IB. DATA_IN contains tables and descriptors for the | |
806 | file being read. */ | |
807 | ||
808 | static void | |
809 | lto_input_ts_list_tree_pointers (struct lto_input_block *ib, | |
810 | struct data_in *data_in, tree expr) | |
811 | { | |
b9393656 DN |
812 | TREE_PURPOSE (expr) = stream_read_tree (ib, data_in); |
813 | TREE_VALUE (expr) = stream_read_tree (ib, data_in); | |
ee03e71d | 814 | TREE_CHAIN (expr) = stream_read_tree (ib, data_in); |
f0efc7aa DN |
815 | } |
816 | ||
817 | ||
818 | /* Read all pointer fields in the TS_VEC structure of EXPR from input | |
819 | block IB. DATA_IN contains tables and descriptors for the | |
820 | file being read. */ | |
821 | ||
822 | static void | |
823 | lto_input_ts_vec_tree_pointers (struct lto_input_block *ib, | |
824 | struct data_in *data_in, tree expr) | |
825 | { | |
826 | int i; | |
827 | ||
412288f1 | 828 | /* Note that TREE_VEC_LENGTH was read by streamer_alloc_tree to |
f0efc7aa DN |
829 | instantiate EXPR. */ |
830 | for (i = 0; i < TREE_VEC_LENGTH (expr); i++) | |
b9393656 | 831 | TREE_VEC_ELT (expr, i) = stream_read_tree (ib, data_in); |
f0efc7aa DN |
832 | } |
833 | ||
834 | ||
835 | /* Read all pointer fields in the TS_EXP structure of EXPR from input | |
836 | block IB. DATA_IN contains tables and descriptors for the | |
837 | file being read. */ | |
838 | ||
839 | ||
840 | static void | |
841 | lto_input_ts_exp_tree_pointers (struct lto_input_block *ib, | |
842 | struct data_in *data_in, tree expr) | |
843 | { | |
0127aae4 | 844 | int i; |
f0efc7aa | 845 | |
0127aae4 | 846 | for (i = 0; i < TREE_OPERAND_LENGTH (expr); i++) |
b9393656 | 847 | TREE_OPERAND (expr, i) = stream_read_tree (ib, data_in); |
f0efc7aa | 848 | |
5368224f | 849 | TREE_SET_BLOCK (expr, stream_read_tree (ib, data_in)); |
f0efc7aa DN |
850 | } |
851 | ||
852 | ||
853 | /* Read all pointer fields in the TS_BLOCK structure of EXPR from input | |
854 | block IB. DATA_IN contains tables and descriptors for the | |
855 | file being read. */ | |
856 | ||
857 | static void | |
858 | lto_input_ts_block_tree_pointers (struct lto_input_block *ib, | |
859 | struct data_in *data_in, tree expr) | |
860 | { | |
412288f1 | 861 | BLOCK_VARS (expr) = streamer_read_chain (ib, data_in); |
f0efc7aa | 862 | |
b9393656 | 863 | BLOCK_SUPERCONTEXT (expr) = stream_read_tree (ib, data_in); |
f0efc7aa | 864 | |
5c1eb617 RG |
865 | /* Stream BLOCK_ABSTRACT_ORIGIN and BLOCK_SOURCE_LOCATION for |
866 | the limited cases we can handle - those that represent inlined | |
867 | function scopes. For the rest them on the floor instead of ICEing in | |
f0efc7aa | 868 | dwarf2out.c. */ |
5c1eb617 | 869 | BLOCK_ABSTRACT_ORIGIN (expr) = stream_read_tree (ib, data_in); |
5c1eb617 RG |
870 | /* Do not stream BLOCK_NONLOCALIZED_VARS. We cannot handle debug information |
871 | for early inlined BLOCKs so drop it on the floor instead of ICEing in | |
872 | dwarf2out.c. */ | |
873 | ||
874 | /* BLOCK_FRAGMENT_ORIGIN and BLOCK_FRAGMENT_CHAIN is not live at LTO | |
875 | streaming time. */ | |
f0efc7aa DN |
876 | |
877 | /* We re-compute BLOCK_SUBBLOCKS of our parent here instead | |
878 | of streaming it. For non-BLOCK BLOCK_SUPERCONTEXTs we still | |
879 | stream the child relationship explicitly. */ | |
880 | if (BLOCK_SUPERCONTEXT (expr) | |
881 | && TREE_CODE (BLOCK_SUPERCONTEXT (expr)) == BLOCK) | |
882 | { | |
883 | BLOCK_CHAIN (expr) = BLOCK_SUBBLOCKS (BLOCK_SUPERCONTEXT (expr)); | |
884 | BLOCK_SUBBLOCKS (BLOCK_SUPERCONTEXT (expr)) = expr; | |
885 | } | |
886 | ||
887 | /* The global block is rooted at the TU decl. Hook it here to | |
888 | avoid the need to stream in this block during WPA time. */ | |
889 | else if (BLOCK_SUPERCONTEXT (expr) | |
890 | && TREE_CODE (BLOCK_SUPERCONTEXT (expr)) == TRANSLATION_UNIT_DECL) | |
891 | DECL_INITIAL (BLOCK_SUPERCONTEXT (expr)) = expr; | |
892 | ||
893 | /* The function-level block is connected at the time we read in | |
894 | function bodies for the same reason. */ | |
895 | } | |
896 | ||
897 | ||
898 | /* Read all pointer fields in the TS_BINFO structure of EXPR from input | |
899 | block IB. DATA_IN contains tables and descriptors for the | |
900 | file being read. */ | |
901 | ||
902 | static void | |
903 | lto_input_ts_binfo_tree_pointers (struct lto_input_block *ib, | |
904 | struct data_in *data_in, tree expr) | |
905 | { | |
0127aae4 | 906 | unsigned i; |
f0efc7aa DN |
907 | tree t; |
908 | ||
909 | /* Note that the number of slots in EXPR was read in | |
412288f1 | 910 | streamer_alloc_tree when instantiating EXPR. However, the |
9771b263 | 911 | vector is empty so we cannot rely on vec::length to know how many |
f0efc7aa DN |
912 | elements to read. So, this list is emitted as a 0-terminated |
913 | list on the writer side. */ | |
914 | do | |
915 | { | |
b9393656 | 916 | t = stream_read_tree (ib, data_in); |
f0efc7aa | 917 | if (t) |
9771b263 | 918 | BINFO_BASE_BINFOS (expr)->quick_push (t); |
f0efc7aa DN |
919 | } |
920 | while (t); | |
921 | ||
b9393656 DN |
922 | BINFO_OFFSET (expr) = stream_read_tree (ib, data_in); |
923 | BINFO_VTABLE (expr) = stream_read_tree (ib, data_in); | |
b9393656 | 924 | BINFO_VPTR_FIELD (expr) = stream_read_tree (ib, data_in); |
f0efc7aa | 925 | |
0127aae4 RG |
926 | /* The vector of BINFO_BASE_ACCESSES is pre-allocated during |
927 | unpacking the bitfield section. */ | |
9771b263 | 928 | for (i = 0; i < vec_safe_length (BINFO_BASE_ACCESSES (expr)); i++) |
f0efc7aa | 929 | { |
0127aae4 | 930 | tree a = stream_read_tree (ib, data_in); |
9771b263 | 931 | (*BINFO_BASE_ACCESSES (expr))[i] = a; |
f0efc7aa | 932 | } |
184799e7 JH |
933 | /* Do not walk BINFO_INHERITANCE_CHAIN, BINFO_SUBVTT_INDEX |
934 | and BINFO_VPTR_INDEX; these are used by C++ FE only. */ | |
f0efc7aa DN |
935 | } |
936 | ||
937 | ||
938 | /* Read all pointer fields in the TS_CONSTRUCTOR structure of EXPR from | |
939 | input block IB. DATA_IN contains tables and descriptors for the | |
940 | file being read. */ | |
941 | ||
942 | static void | |
943 | lto_input_ts_constructor_tree_pointers (struct lto_input_block *ib, | |
944 | struct data_in *data_in, tree expr) | |
945 | { | |
0127aae4 | 946 | unsigned i; |
f0efc7aa | 947 | |
0127aae4 | 948 | for (i = 0; i < CONSTRUCTOR_NELTS (expr); i++) |
f0efc7aa | 949 | { |
0127aae4 RG |
950 | constructor_elt e; |
951 | e.index = stream_read_tree (ib, data_in); | |
952 | e.value = stream_read_tree (ib, data_in); | |
9771b263 | 953 | (*CONSTRUCTOR_ELTS (expr))[i] = e; |
f0efc7aa DN |
954 | } |
955 | } | |
956 | ||
957 | ||
b9393656 DN |
958 | /* Read all pointer fields in EXPR from input block IB. DATA_IN |
959 | contains tables and descriptors for the file being read. */ | |
f0efc7aa | 960 | |
b9393656 | 961 | void |
412288f1 | 962 | streamer_read_tree_body (struct lto_input_block *ib, struct data_in *data_in, |
f0efc7aa DN |
963 | tree expr) |
964 | { | |
965 | enum tree_code code; | |
966 | ||
967 | code = TREE_CODE (expr); | |
968 | ||
969 | if (CODE_CONTAINS_STRUCT (code, TS_TYPED)) | |
970 | lto_input_ts_common_tree_pointers (ib, data_in, expr); | |
971 | ||
972 | if (CODE_CONTAINS_STRUCT (code, TS_VECTOR)) | |
973 | lto_input_ts_vector_tree_pointers (ib, data_in, expr); | |
974 | ||
975 | if (CODE_CONTAINS_STRUCT (code, TS_COMPLEX)) | |
976 | lto_input_ts_complex_tree_pointers (ib, data_in, expr); | |
977 | ||
978 | if (CODE_CONTAINS_STRUCT (code, TS_DECL_MINIMAL)) | |
979 | lto_input_ts_decl_minimal_tree_pointers (ib, data_in, expr); | |
980 | ||
981 | if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON)) | |
982 | lto_input_ts_decl_common_tree_pointers (ib, data_in, expr); | |
983 | ||
984 | if (CODE_CONTAINS_STRUCT (code, TS_DECL_NON_COMMON)) | |
985 | lto_input_ts_decl_non_common_tree_pointers (ib, data_in, expr); | |
986 | ||
987 | if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS)) | |
988 | lto_input_ts_decl_with_vis_tree_pointers (ib, data_in, expr); | |
989 | ||
990 | if (CODE_CONTAINS_STRUCT (code, TS_FIELD_DECL)) | |
991 | lto_input_ts_field_decl_tree_pointers (ib, data_in, expr); | |
992 | ||
993 | if (CODE_CONTAINS_STRUCT (code, TS_FUNCTION_DECL)) | |
994 | lto_input_ts_function_decl_tree_pointers (ib, data_in, expr); | |
995 | ||
996 | if (CODE_CONTAINS_STRUCT (code, TS_TYPE_COMMON)) | |
997 | lto_input_ts_type_common_tree_pointers (ib, data_in, expr); | |
998 | ||
999 | if (CODE_CONTAINS_STRUCT (code, TS_TYPE_NON_COMMON)) | |
1000 | lto_input_ts_type_non_common_tree_pointers (ib, data_in, expr); | |
1001 | ||
1002 | if (CODE_CONTAINS_STRUCT (code, TS_LIST)) | |
1003 | lto_input_ts_list_tree_pointers (ib, data_in, expr); | |
1004 | ||
1005 | if (CODE_CONTAINS_STRUCT (code, TS_VEC)) | |
1006 | lto_input_ts_vec_tree_pointers (ib, data_in, expr); | |
1007 | ||
1008 | if (CODE_CONTAINS_STRUCT (code, TS_EXP)) | |
1009 | lto_input_ts_exp_tree_pointers (ib, data_in, expr); | |
1010 | ||
1011 | if (CODE_CONTAINS_STRUCT (code, TS_BLOCK)) | |
1012 | lto_input_ts_block_tree_pointers (ib, data_in, expr); | |
1013 | ||
1014 | if (CODE_CONTAINS_STRUCT (code, TS_BINFO)) | |
1015 | lto_input_ts_binfo_tree_pointers (ib, data_in, expr); | |
1016 | ||
1017 | if (CODE_CONTAINS_STRUCT (code, TS_CONSTRUCTOR)) | |
1018 | lto_input_ts_constructor_tree_pointers (ib, data_in, expr); | |
f0efc7aa DN |
1019 | } |
1020 | ||
1021 | ||
f0efc7aa DN |
1022 | /* Read an index IX from input block IB and return the tree node at |
1023 | DATA_IN->FILE_DATA->GLOBALS_INDEX[IX]. */ | |
1024 | ||
b9393656 | 1025 | tree |
412288f1 | 1026 | streamer_get_pickled_tree (struct lto_input_block *ib, struct data_in *data_in) |
f0efc7aa DN |
1027 | { |
1028 | unsigned HOST_WIDE_INT ix; | |
1029 | tree result; | |
1030 | enum LTO_tags expected_tag; | |
1031 | ||
412288f1 DN |
1032 | ix = streamer_read_uhwi (ib); |
1033 | expected_tag = streamer_read_enum (ib, LTO_tags, LTO_NUM_TAGS); | |
f0efc7aa | 1034 | |
ee03e71d | 1035 | result = streamer_tree_cache_get_tree (data_in->reader_cache, ix); |
f0efc7aa DN |
1036 | gcc_assert (result |
1037 | && TREE_CODE (result) == lto_tag_to_tree_code (expected_tag)); | |
1038 | ||
1039 | return result; | |
1040 | } | |
1041 | ||
1042 | ||
1043 | /* Read a code and class from input block IB and return the | |
b9393656 | 1044 | corresponding builtin. DATA_IN is as in stream_read_tree. */ |
f0efc7aa | 1045 | |
b9393656 | 1046 | tree |
412288f1 | 1047 | streamer_get_builtin_tree (struct lto_input_block *ib, struct data_in *data_in) |
f0efc7aa DN |
1048 | { |
1049 | enum built_in_class fclass; | |
1050 | enum built_in_function fcode; | |
1051 | const char *asmname; | |
1052 | tree result; | |
1053 | ||
412288f1 | 1054 | fclass = streamer_read_enum (ib, built_in_class, BUILT_IN_LAST); |
f0efc7aa DN |
1055 | gcc_assert (fclass == BUILT_IN_NORMAL || fclass == BUILT_IN_MD); |
1056 | ||
412288f1 | 1057 | fcode = (enum built_in_function) streamer_read_uhwi (ib); |
f0efc7aa DN |
1058 | |
1059 | if (fclass == BUILT_IN_NORMAL) | |
1060 | { | |
1061 | if (fcode >= END_BUILTINS) | |
1062 | fatal_error ("machine independent builtin code out of range"); | |
e79983f4 | 1063 | result = builtin_decl_explicit (fcode); |
f0efc7aa DN |
1064 | gcc_assert (result); |
1065 | } | |
1066 | else if (fclass == BUILT_IN_MD) | |
1067 | { | |
1068 | result = targetm.builtin_decl (fcode, true); | |
1069 | if (!result || result == error_mark_node) | |
1070 | fatal_error ("target specific builtin not available"); | |
1071 | } | |
1072 | else | |
1073 | gcc_unreachable (); | |
1074 | ||
412288f1 | 1075 | asmname = streamer_read_string (data_in, ib); |
f0efc7aa DN |
1076 | if (asmname) |
1077 | set_builtin_user_assembler_name (result, asmname); | |
1078 | ||
ee03e71d | 1079 | streamer_tree_cache_append (data_in->reader_cache, result, 0); |
f0efc7aa DN |
1080 | |
1081 | return result; | |
1082 | } |