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f0efc7aa DN |
1 | /* Routines for reading trees from a file stream. |
2 | ||
3 | Copyright 2011 Free Software Foundation, Inc. | |
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" | |
27 | #include "tree-flow.h" | |
28 | #include "tree-streamer.h" | |
29 | #include "data-streamer.h" | |
30 | #include "streamer-hooks.h" | |
31 | #include "lto-streamer.h" | |
32 | ||
33 | /* Read a STRING_CST from the string table in DATA_IN using input | |
34 | block IB. */ | |
35 | ||
36 | tree | |
412288f1 | 37 | streamer_read_string_cst (struct data_in *data_in, struct lto_input_block *ib) |
f0efc7aa DN |
38 | { |
39 | unsigned int len; | |
40 | const char * ptr; | |
41 | ||
412288f1 | 42 | ptr = streamer_read_indexed_string (data_in, ib, &len); |
f0efc7aa DN |
43 | if (!ptr) |
44 | return NULL; | |
45 | return build_string (len, ptr); | |
46 | } | |
47 | ||
48 | ||
49 | /* Read an IDENTIFIER from the string table in DATA_IN using input | |
50 | block IB. */ | |
51 | ||
52 | static tree | |
53 | input_identifier (struct data_in *data_in, struct lto_input_block *ib) | |
54 | { | |
55 | unsigned int len; | |
56 | const char *ptr; | |
57 | ||
412288f1 | 58 | ptr = streamer_read_indexed_string (data_in, ib, &len); |
f0efc7aa DN |
59 | if (!ptr) |
60 | return NULL; | |
61 | return get_identifier_with_length (ptr, len); | |
62 | } | |
63 | ||
64 | ||
65 | /* Read a chain of tree nodes from input block IB. DATA_IN contains | |
66 | tables and descriptors for the file being read. */ | |
67 | ||
412288f1 DN |
68 | tree |
69 | streamer_read_chain (struct lto_input_block *ib, struct data_in *data_in) | |
f0efc7aa DN |
70 | { |
71 | int i, count; | |
72 | tree first, prev, curr; | |
73 | ||
74 | first = prev = NULL_TREE; | |
412288f1 | 75 | count = streamer_read_hwi (ib); |
f0efc7aa DN |
76 | for (i = 0; i < count; i++) |
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 | ||
84 | TREE_CHAIN (curr) = NULL_TREE; | |
85 | prev = curr; | |
86 | } | |
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); | |
126 | TREE_USED (expr) = (unsigned) bp_unpack_value (bp, 1); | |
127 | TREE_NOTHROW (expr) = (unsigned) bp_unpack_value (bp, 1); | |
128 | TREE_STATIC (expr) = (unsigned) bp_unpack_value (bp, 1); | |
129 | TREE_PRIVATE (expr) = (unsigned) bp_unpack_value (bp, 1); | |
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 | ||
144 | /* Unpack all the non-pointer fields of the TS_REAL_CST structure of | |
145 | expression EXPR from bitpack BP. */ | |
146 | ||
147 | static void | |
148 | unpack_ts_real_cst_value_fields (struct bitpack_d *bp, tree expr) | |
149 | { | |
150 | unsigned i; | |
151 | REAL_VALUE_TYPE r; | |
152 | REAL_VALUE_TYPE *rp; | |
153 | ||
154 | r.cl = (unsigned) bp_unpack_value (bp, 2); | |
155 | r.decimal = (unsigned) bp_unpack_value (bp, 1); | |
156 | r.sign = (unsigned) bp_unpack_value (bp, 1); | |
157 | r.signalling = (unsigned) bp_unpack_value (bp, 1); | |
158 | r.canonical = (unsigned) bp_unpack_value (bp, 1); | |
159 | r.uexp = (unsigned) bp_unpack_value (bp, EXP_BITS); | |
160 | for (i = 0; i < SIGSZ; i++) | |
161 | r.sig[i] = (unsigned long) bp_unpack_value (bp, HOST_BITS_PER_LONG); | |
162 | ||
163 | rp = ggc_alloc_real_value (); | |
164 | memcpy (rp, &r, sizeof (REAL_VALUE_TYPE)); | |
165 | TREE_REAL_CST_PTR (expr) = rp; | |
166 | } | |
167 | ||
168 | ||
169 | /* Unpack all the non-pointer fields of the TS_FIXED_CST structure of | |
170 | expression EXPR from bitpack BP. */ | |
171 | ||
172 | static void | |
173 | unpack_ts_fixed_cst_value_fields (struct bitpack_d *bp, tree expr) | |
174 | { | |
f57f20bb RG |
175 | FIXED_VALUE_TYPE *fp = ggc_alloc_fixed_value (); |
176 | fp->mode = bp_unpack_enum (bp, machine_mode, MAX_MACHINE_MODE); | |
177 | fp->data.low = bp_unpack_var_len_int (bp); | |
178 | fp->data.high = bp_unpack_var_len_int (bp); | |
179 | TREE_FIXED_CST_PTR (expr) = fp; | |
f0efc7aa DN |
180 | } |
181 | ||
182 | ||
183 | /* Unpack all the non-pointer fields of the TS_DECL_COMMON structure | |
184 | of expression EXPR from bitpack BP. */ | |
185 | ||
186 | static void | |
187 | unpack_ts_decl_common_value_fields (struct bitpack_d *bp, tree expr) | |
188 | { | |
189 | DECL_MODE (expr) = bp_unpack_enum (bp, machine_mode, MAX_MACHINE_MODE); | |
190 | DECL_NONLOCAL (expr) = (unsigned) bp_unpack_value (bp, 1); | |
191 | DECL_VIRTUAL_P (expr) = (unsigned) bp_unpack_value (bp, 1); | |
192 | DECL_IGNORED_P (expr) = (unsigned) bp_unpack_value (bp, 1); | |
193 | DECL_ABSTRACT (expr) = (unsigned) bp_unpack_value (bp, 1); | |
194 | DECL_ARTIFICIAL (expr) = (unsigned) bp_unpack_value (bp, 1); | |
195 | DECL_USER_ALIGN (expr) = (unsigned) bp_unpack_value (bp, 1); | |
196 | DECL_PRESERVE_P (expr) = (unsigned) bp_unpack_value (bp, 1); | |
197 | DECL_DEBUG_EXPR_IS_FROM (expr) = (unsigned) bp_unpack_value (bp, 1); | |
198 | DECL_EXTERNAL (expr) = (unsigned) bp_unpack_value (bp, 1); | |
199 | DECL_GIMPLE_REG_P (expr) = (unsigned) bp_unpack_value (bp, 1); | |
200 | DECL_ALIGN (expr) = (unsigned) bp_unpack_var_len_unsigned (bp); | |
201 | ||
202 | if (TREE_CODE (expr) == LABEL_DECL) | |
203 | { | |
204 | DECL_ERROR_ISSUED (expr) = (unsigned) bp_unpack_value (bp, 1); | |
205 | EH_LANDING_PAD_NR (expr) = (int) bp_unpack_var_len_unsigned (bp); | |
206 | ||
207 | /* Always assume an initial value of -1 for LABEL_DECL_UID to | |
208 | force gimple_set_bb to recreate label_to_block_map. */ | |
209 | LABEL_DECL_UID (expr) = -1; | |
210 | } | |
211 | ||
212 | if (TREE_CODE (expr) == FIELD_DECL) | |
213 | { | |
214 | DECL_PACKED (expr) = (unsigned) bp_unpack_value (bp, 1); | |
215 | DECL_NONADDRESSABLE_P (expr) = (unsigned) bp_unpack_value (bp, 1); | |
216 | expr->decl_common.off_align = bp_unpack_value (bp, 8); | |
217 | } | |
218 | ||
0f1e8842 EB |
219 | if (TREE_CODE (expr) == VAR_DECL) |
220 | DECL_NONLOCAL_FRAME (expr) = (unsigned) bp_unpack_value (bp, 1); | |
221 | ||
f0efc7aa DN |
222 | if (TREE_CODE (expr) == RESULT_DECL |
223 | || TREE_CODE (expr) == PARM_DECL | |
224 | || TREE_CODE (expr) == VAR_DECL) | |
225 | { | |
226 | DECL_BY_REFERENCE (expr) = (unsigned) bp_unpack_value (bp, 1); | |
227 | if (TREE_CODE (expr) == VAR_DECL | |
228 | || TREE_CODE (expr) == PARM_DECL) | |
229 | DECL_HAS_VALUE_EXPR_P (expr) = (unsigned) bp_unpack_value (bp, 1); | |
230 | DECL_RESTRICTED_P (expr) = (unsigned) bp_unpack_value (bp, 1); | |
231 | } | |
232 | } | |
233 | ||
234 | ||
235 | /* Unpack all the non-pointer fields of the TS_DECL_WRTL structure | |
236 | of expression EXPR from bitpack BP. */ | |
237 | ||
238 | static void | |
239 | unpack_ts_decl_wrtl_value_fields (struct bitpack_d *bp, tree expr) | |
240 | { | |
241 | DECL_REGISTER (expr) = (unsigned) bp_unpack_value (bp, 1); | |
242 | } | |
243 | ||
244 | ||
245 | /* Unpack all the non-pointer fields of the TS_DECL_WITH_VIS structure | |
246 | of expression EXPR from bitpack BP. */ | |
247 | ||
248 | static void | |
249 | unpack_ts_decl_with_vis_value_fields (struct bitpack_d *bp, tree expr) | |
250 | { | |
251 | DECL_DEFER_OUTPUT (expr) = (unsigned) bp_unpack_value (bp, 1); | |
252 | DECL_COMMON (expr) = (unsigned) bp_unpack_value (bp, 1); | |
253 | DECL_DLLIMPORT_P (expr) = (unsigned) bp_unpack_value (bp, 1); | |
254 | DECL_WEAK (expr) = (unsigned) bp_unpack_value (bp, 1); | |
255 | DECL_SEEN_IN_BIND_EXPR_P (expr) = (unsigned) bp_unpack_value (bp, 1); | |
256 | DECL_COMDAT (expr) = (unsigned) bp_unpack_value (bp, 1); | |
257 | DECL_VISIBILITY (expr) = (enum symbol_visibility) bp_unpack_value (bp, 2); | |
258 | DECL_VISIBILITY_SPECIFIED (expr) = (unsigned) bp_unpack_value (bp, 1); | |
259 | ||
260 | if (TREE_CODE (expr) == VAR_DECL) | |
261 | { | |
262 | DECL_HARD_REGISTER (expr) = (unsigned) bp_unpack_value (bp, 1); | |
263 | DECL_IN_TEXT_SECTION (expr) = (unsigned) bp_unpack_value (bp, 1); | |
264 | DECL_IN_CONSTANT_POOL (expr) = (unsigned) bp_unpack_value (bp, 1); | |
265 | DECL_TLS_MODEL (expr) = (enum tls_model) bp_unpack_value (bp, 3); | |
266 | } | |
267 | ||
268 | if (VAR_OR_FUNCTION_DECL_P (expr)) | |
269 | { | |
270 | priority_type p; | |
271 | p = (priority_type) bp_unpack_var_len_unsigned (bp); | |
272 | SET_DECL_INIT_PRIORITY (expr, p); | |
273 | } | |
274 | } | |
275 | ||
276 | ||
277 | /* Unpack all the non-pointer fields of the TS_FUNCTION_DECL structure | |
278 | of expression EXPR from bitpack BP. */ | |
279 | ||
280 | static void | |
281 | unpack_ts_function_decl_value_fields (struct bitpack_d *bp, tree expr) | |
282 | { | |
283 | DECL_BUILT_IN_CLASS (expr) = bp_unpack_enum (bp, built_in_class, | |
284 | BUILT_IN_LAST); | |
285 | DECL_STATIC_CONSTRUCTOR (expr) = (unsigned) bp_unpack_value (bp, 1); | |
286 | DECL_STATIC_DESTRUCTOR (expr) = (unsigned) bp_unpack_value (bp, 1); | |
287 | DECL_UNINLINABLE (expr) = (unsigned) bp_unpack_value (bp, 1); | |
288 | DECL_POSSIBLY_INLINED (expr) = (unsigned) bp_unpack_value (bp, 1); | |
289 | DECL_IS_NOVOPS (expr) = (unsigned) bp_unpack_value (bp, 1); | |
290 | DECL_IS_RETURNS_TWICE (expr) = (unsigned) bp_unpack_value (bp, 1); | |
291 | DECL_IS_MALLOC (expr) = (unsigned) bp_unpack_value (bp, 1); | |
292 | DECL_IS_OPERATOR_NEW (expr) = (unsigned) bp_unpack_value (bp, 1); | |
293 | DECL_DECLARED_INLINE_P (expr) = (unsigned) bp_unpack_value (bp, 1); | |
294 | DECL_STATIC_CHAIN (expr) = (unsigned) bp_unpack_value (bp, 1); | |
295 | DECL_NO_INLINE_WARNING_P (expr) = (unsigned) bp_unpack_value (bp, 1); | |
296 | DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT (expr) | |
297 | = (unsigned) bp_unpack_value (bp, 1); | |
298 | DECL_NO_LIMIT_STACK (expr) = (unsigned) bp_unpack_value (bp, 1); | |
299 | DECL_DISREGARD_INLINE_LIMITS (expr) = (unsigned) bp_unpack_value (bp, 1); | |
300 | DECL_PURE_P (expr) = (unsigned) bp_unpack_value (bp, 1); | |
301 | DECL_LOOPING_CONST_OR_PURE_P (expr) = (unsigned) bp_unpack_value (bp, 1); | |
302 | if (DECL_BUILT_IN_CLASS (expr) != NOT_BUILT_IN) | |
303 | { | |
304 | DECL_FUNCTION_CODE (expr) = (enum built_in_function) bp_unpack_value (bp, | |
305 | 11); | |
306 | if (DECL_BUILT_IN_CLASS (expr) == BUILT_IN_NORMAL | |
307 | && DECL_FUNCTION_CODE (expr) >= END_BUILTINS) | |
308 | fatal_error ("machine independent builtin code out of range"); | |
309 | else if (DECL_BUILT_IN_CLASS (expr) == BUILT_IN_MD) | |
310 | { | |
311 | tree result = targetm.builtin_decl (DECL_FUNCTION_CODE (expr), true); | |
312 | if (!result || result == error_mark_node) | |
313 | fatal_error ("target specific builtin not available"); | |
314 | } | |
315 | } | |
316 | if (DECL_STATIC_DESTRUCTOR (expr)) | |
317 | { | |
318 | priority_type p; | |
319 | p = (priority_type) bp_unpack_var_len_unsigned (bp); | |
320 | SET_DECL_FINI_PRIORITY (expr, p); | |
321 | } | |
322 | } | |
323 | ||
324 | ||
325 | /* Unpack all the non-pointer fields of the TS_TYPE_COMMON structure | |
326 | of expression EXPR from bitpack BP. */ | |
327 | ||
328 | static void | |
329 | unpack_ts_type_common_value_fields (struct bitpack_d *bp, tree expr) | |
330 | { | |
331 | enum machine_mode mode; | |
332 | ||
333 | mode = bp_unpack_enum (bp, machine_mode, MAX_MACHINE_MODE); | |
334 | SET_TYPE_MODE (expr, mode); | |
335 | TYPE_STRING_FLAG (expr) = (unsigned) bp_unpack_value (bp, 1); | |
336 | TYPE_NO_FORCE_BLK (expr) = (unsigned) bp_unpack_value (bp, 1); | |
337 | TYPE_NEEDS_CONSTRUCTING (expr) = (unsigned) bp_unpack_value (bp, 1); | |
338 | if (RECORD_OR_UNION_TYPE_P (expr)) | |
339 | TYPE_TRANSPARENT_AGGR (expr) = (unsigned) bp_unpack_value (bp, 1); | |
04208228 EB |
340 | else if (TREE_CODE (expr) == ARRAY_TYPE) |
341 | TYPE_NONALIASED_COMPONENT (expr) = (unsigned) bp_unpack_value (bp, 1); | |
f0efc7aa DN |
342 | TYPE_PACKED (expr) = (unsigned) bp_unpack_value (bp, 1); |
343 | TYPE_RESTRICT (expr) = (unsigned) bp_unpack_value (bp, 1); | |
344 | TYPE_CONTAINS_PLACEHOLDER_INTERNAL (expr) | |
345 | = (unsigned) bp_unpack_value (bp, 2); | |
346 | TYPE_USER_ALIGN (expr) = (unsigned) bp_unpack_value (bp, 1); | |
347 | TYPE_READONLY (expr) = (unsigned) bp_unpack_value (bp, 1); | |
348 | TYPE_PRECISION (expr) = bp_unpack_var_len_unsigned (bp); | |
349 | TYPE_ALIGN (expr) = bp_unpack_var_len_unsigned (bp); | |
350 | TYPE_ALIAS_SET (expr) = bp_unpack_var_len_int (bp); | |
351 | } | |
352 | ||
353 | ||
354 | /* Unpack all the non-pointer fields of the TS_BLOCK structure | |
355 | of expression EXPR from bitpack BP. */ | |
356 | ||
357 | static void | |
358 | unpack_ts_block_value_fields (struct bitpack_d *bp, tree expr) | |
359 | { | |
360 | BLOCK_ABSTRACT (expr) = (unsigned) bp_unpack_value (bp, 1); | |
361 | /* BLOCK_NUMBER is recomputed. */ | |
362 | } | |
363 | ||
364 | /* Unpack all the non-pointer fields of the TS_TRANSLATION_UNIT_DECL | |
365 | structure of expression EXPR from bitpack BP. */ | |
366 | ||
367 | static void | |
368 | unpack_ts_translation_unit_decl_value_fields (struct bitpack_d *bp ATTRIBUTE_UNUSED, tree expr ATTRIBUTE_UNUSED) | |
369 | { | |
370 | } | |
371 | ||
372 | /* Unpack all the non-pointer fields in EXPR into a bit pack. */ | |
373 | ||
374 | static void | |
375 | unpack_value_fields (struct bitpack_d *bp, tree expr) | |
376 | { | |
377 | enum tree_code code; | |
378 | ||
379 | code = TREE_CODE (expr); | |
380 | ||
381 | /* Note that all these functions are highly sensitive to changes in | |
382 | the types and sizes of each of the fields being packed. */ | |
383 | unpack_ts_base_value_fields (bp, expr); | |
384 | ||
385 | if (CODE_CONTAINS_STRUCT (code, TS_REAL_CST)) | |
386 | unpack_ts_real_cst_value_fields (bp, expr); | |
387 | ||
388 | if (CODE_CONTAINS_STRUCT (code, TS_FIXED_CST)) | |
389 | unpack_ts_fixed_cst_value_fields (bp, expr); | |
390 | ||
391 | if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON)) | |
392 | unpack_ts_decl_common_value_fields (bp, expr); | |
393 | ||
394 | if (CODE_CONTAINS_STRUCT (code, TS_DECL_WRTL)) | |
395 | unpack_ts_decl_wrtl_value_fields (bp, expr); | |
396 | ||
397 | if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS)) | |
398 | unpack_ts_decl_with_vis_value_fields (bp, expr); | |
399 | ||
400 | if (CODE_CONTAINS_STRUCT (code, TS_FUNCTION_DECL)) | |
401 | unpack_ts_function_decl_value_fields (bp, expr); | |
402 | ||
403 | if (CODE_CONTAINS_STRUCT (code, TS_TYPE_COMMON)) | |
404 | unpack_ts_type_common_value_fields (bp, expr); | |
405 | ||
406 | if (CODE_CONTAINS_STRUCT (code, TS_BLOCK)) | |
407 | unpack_ts_block_value_fields (bp, expr); | |
408 | ||
409 | if (CODE_CONTAINS_STRUCT (code, TS_TRANSLATION_UNIT_DECL)) | |
410 | unpack_ts_translation_unit_decl_value_fields (bp, expr); | |
b9393656 DN |
411 | } |
412 | ||
413 | ||
414 | /* Read all the language-independent bitfield values for EXPR from IB. | |
415 | Return the partially unpacked bitpack so the caller can unpack any other | |
416 | bitfield values that the writer may have written. */ | |
f0efc7aa | 417 | |
b9393656 | 418 | struct bitpack_d |
412288f1 | 419 | streamer_read_tree_bitfields (struct lto_input_block *ib, tree expr) |
b9393656 DN |
420 | { |
421 | enum tree_code code; | |
422 | struct bitpack_d bp; | |
423 | ||
424 | /* Read the bitpack of non-pointer values from IB. */ | |
412288f1 | 425 | bp = streamer_read_bitpack (ib); |
b9393656 DN |
426 | |
427 | /* The first word in BP contains the code of the tree that we | |
428 | are about to read. */ | |
429 | code = (enum tree_code) bp_unpack_value (&bp, 16); | |
430 | lto_tag_check (lto_tree_code_to_tag (code), | |
431 | lto_tree_code_to_tag (TREE_CODE (expr))); | |
432 | ||
433 | /* Unpack all the value fields from BP. */ | |
434 | unpack_value_fields (&bp, expr); | |
435 | ||
436 | return bp; | |
f0efc7aa DN |
437 | } |
438 | ||
439 | ||
440 | /* Materialize a new tree from input block IB using descriptors in | |
441 | DATA_IN. The code for the new tree should match TAG. Store in | |
442 | *IX_P the index into the reader cache where the new tree is stored. */ | |
443 | ||
b9393656 | 444 | tree |
412288f1 DN |
445 | streamer_alloc_tree (struct lto_input_block *ib, struct data_in *data_in, |
446 | enum LTO_tags tag) | |
f0efc7aa | 447 | { |
f0efc7aa DN |
448 | enum tree_code code; |
449 | tree result; | |
450 | #ifdef LTO_STREAMER_DEBUG | |
451 | HOST_WIDEST_INT orig_address_in_writer; | |
452 | #endif | |
453 | ||
454 | result = NULL_TREE; | |
455 | ||
456 | #ifdef LTO_STREAMER_DEBUG | |
457 | /* Read the word representing the memory address for the tree | |
458 | as it was written by the writer. This is useful when | |
459 | debugging differences between the writer and reader. */ | |
412288f1 | 460 | orig_address_in_writer = streamer_read_hwi (ib); |
f0efc7aa DN |
461 | gcc_assert ((intptr_t) orig_address_in_writer == orig_address_in_writer); |
462 | #endif | |
463 | ||
464 | code = lto_tag_to_tree_code (tag); | |
465 | ||
466 | /* We should never see an SSA_NAME tree. Only the version numbers of | |
467 | SSA names are ever written out. See input_ssa_names. */ | |
468 | gcc_assert (code != SSA_NAME); | |
469 | ||
470 | /* Instantiate a new tree using the header data. */ | |
471 | if (CODE_CONTAINS_STRUCT (code, TS_STRING)) | |
412288f1 | 472 | result = streamer_read_string_cst (data_in, ib); |
f0efc7aa DN |
473 | else if (CODE_CONTAINS_STRUCT (code, TS_IDENTIFIER)) |
474 | result = input_identifier (data_in, ib); | |
475 | else if (CODE_CONTAINS_STRUCT (code, TS_VEC)) | |
476 | { | |
412288f1 | 477 | HOST_WIDE_INT len = streamer_read_hwi (ib); |
f0efc7aa DN |
478 | result = make_tree_vec (len); |
479 | } | |
d2a12ae7 RG |
480 | else if (CODE_CONTAINS_STRUCT (code, TS_VECTOR)) |
481 | { | |
482 | HOST_WIDE_INT len = streamer_read_hwi (ib); | |
ac9a074c | 483 | result = make_vector (len); |
d2a12ae7 | 484 | } |
f0efc7aa DN |
485 | else if (CODE_CONTAINS_STRUCT (code, TS_BINFO)) |
486 | { | |
412288f1 | 487 | unsigned HOST_WIDE_INT len = streamer_read_uhwi (ib); |
f0efc7aa DN |
488 | result = make_tree_binfo (len); |
489 | } | |
b9393656 DN |
490 | else if (code == CALL_EXPR) |
491 | { | |
412288f1 | 492 | unsigned HOST_WIDE_INT nargs = streamer_read_uhwi (ib); |
b9393656 DN |
493 | return build_vl_exp (CALL_EXPR, nargs + 3); |
494 | } | |
f0efc7aa DN |
495 | else |
496 | { | |
b9393656 | 497 | /* For all other nodes, materialize the tree with a raw |
f0efc7aa | 498 | make_node call. */ |
b9393656 | 499 | result = make_node (code); |
f0efc7aa DN |
500 | } |
501 | ||
502 | #ifdef LTO_STREAMER_DEBUG | |
503 | /* Store the original address of the tree as seen by the writer | |
504 | in RESULT's aux field. This is useful when debugging streaming | |
505 | problems. This way, a debugging session can be started on | |
506 | both writer and reader with a breakpoint using this address | |
507 | value in both. */ | |
508 | lto_orig_address_map (result, (intptr_t) orig_address_in_writer); | |
509 | #endif | |
510 | ||
f0efc7aa DN |
511 | return result; |
512 | } | |
513 | ||
514 | ||
515 | /* Read all pointer fields in the TS_COMMON structure of EXPR from input | |
516 | block IB. DATA_IN contains tables and descriptors for the | |
517 | file being read. */ | |
518 | ||
519 | ||
520 | static void | |
521 | lto_input_ts_common_tree_pointers (struct lto_input_block *ib, | |
522 | struct data_in *data_in, tree expr) | |
523 | { | |
524 | if (TREE_CODE (expr) != IDENTIFIER_NODE) | |
b9393656 | 525 | TREE_TYPE (expr) = stream_read_tree (ib, data_in); |
f0efc7aa DN |
526 | } |
527 | ||
528 | ||
529 | /* Read all pointer fields in the TS_VECTOR structure of EXPR from input | |
530 | block IB. DATA_IN contains tables and descriptors for the | |
531 | file being read. */ | |
532 | ||
533 | static void | |
534 | lto_input_ts_vector_tree_pointers (struct lto_input_block *ib, | |
535 | struct data_in *data_in, tree expr) | |
536 | { | |
d2a12ae7 RG |
537 | unsigned i; |
538 | for (i = 0; i < VECTOR_CST_NELTS (expr); ++i) | |
539 | VECTOR_CST_ELT (expr, i) = stream_read_tree (ib, data_in); | |
f0efc7aa DN |
540 | } |
541 | ||
542 | ||
543 | /* Read all pointer fields in the TS_COMPLEX structure of EXPR from input | |
544 | block IB. DATA_IN contains tables and descriptors for the | |
545 | file being read. */ | |
546 | ||
547 | static void | |
548 | lto_input_ts_complex_tree_pointers (struct lto_input_block *ib, | |
549 | struct data_in *data_in, tree expr) | |
550 | { | |
b9393656 DN |
551 | TREE_REALPART (expr) = stream_read_tree (ib, data_in); |
552 | TREE_IMAGPART (expr) = stream_read_tree (ib, data_in); | |
f0efc7aa DN |
553 | } |
554 | ||
555 | ||
556 | /* Read all pointer fields in the TS_DECL_MINIMAL structure of EXPR | |
557 | from input block IB. DATA_IN contains tables and descriptors for the | |
558 | file being read. */ | |
559 | ||
560 | static void | |
561 | lto_input_ts_decl_minimal_tree_pointers (struct lto_input_block *ib, | |
562 | struct data_in *data_in, tree expr) | |
563 | { | |
b9393656 DN |
564 | DECL_NAME (expr) = stream_read_tree (ib, data_in); |
565 | DECL_CONTEXT (expr) = stream_read_tree (ib, data_in); | |
f0efc7aa DN |
566 | DECL_SOURCE_LOCATION (expr) = lto_input_location (ib, data_in); |
567 | } | |
568 | ||
569 | ||
570 | /* Read all pointer fields in the TS_DECL_COMMON structure of EXPR from | |
571 | input block IB. DATA_IN contains tables and descriptors for the | |
572 | file being read. */ | |
573 | ||
574 | static void | |
575 | lto_input_ts_decl_common_tree_pointers (struct lto_input_block *ib, | |
576 | struct data_in *data_in, tree expr) | |
577 | { | |
b9393656 DN |
578 | DECL_SIZE (expr) = stream_read_tree (ib, data_in); |
579 | DECL_SIZE_UNIT (expr) = stream_read_tree (ib, data_in); | |
580 | DECL_ATTRIBUTES (expr) = stream_read_tree (ib, data_in); | |
f0efc7aa DN |
581 | |
582 | /* Do not stream DECL_ABSTRACT_ORIGIN. We cannot handle debug information | |
583 | for early inlining so drop it on the floor instead of ICEing in | |
584 | dwarf2out.c. */ | |
585 | ||
586 | if (TREE_CODE (expr) == PARM_DECL) | |
412288f1 | 587 | TREE_CHAIN (expr) = streamer_read_chain (ib, data_in); |
f0efc7aa DN |
588 | |
589 | if ((TREE_CODE (expr) == VAR_DECL | |
590 | || TREE_CODE (expr) == PARM_DECL) | |
591 | && DECL_HAS_VALUE_EXPR_P (expr)) | |
b9393656 | 592 | SET_DECL_VALUE_EXPR (expr, stream_read_tree (ib, data_in)); |
f0efc7aa DN |
593 | |
594 | if (TREE_CODE (expr) == VAR_DECL) | |
595 | { | |
b9393656 | 596 | tree dexpr = stream_read_tree (ib, data_in); |
f0efc7aa DN |
597 | if (dexpr) |
598 | SET_DECL_DEBUG_EXPR (expr, dexpr); | |
599 | } | |
600 | } | |
601 | ||
602 | ||
603 | /* Read all pointer fields in the TS_DECL_NON_COMMON structure of | |
604 | EXPR from input block IB. DATA_IN contains tables and descriptors for the | |
605 | file being read. */ | |
606 | ||
607 | static void | |
608 | lto_input_ts_decl_non_common_tree_pointers (struct lto_input_block *ib, | |
609 | struct data_in *data_in, tree expr) | |
610 | { | |
611 | if (TREE_CODE (expr) == FUNCTION_DECL) | |
612 | { | |
b9393656 DN |
613 | DECL_ARGUMENTS (expr) = stream_read_tree (ib, data_in); |
614 | DECL_RESULT (expr) = stream_read_tree (ib, data_in); | |
f0efc7aa | 615 | } |
ea973bad RG |
616 | else if (TREE_CODE (expr) == TYPE_DECL) |
617 | DECL_ORIGINAL_TYPE (expr) = stream_read_tree (ib, data_in); | |
b9393656 | 618 | DECL_VINDEX (expr) = stream_read_tree (ib, data_in); |
f0efc7aa DN |
619 | } |
620 | ||
621 | ||
622 | /* Read all pointer fields in the TS_DECL_WITH_VIS structure of EXPR | |
623 | from input block IB. DATA_IN contains tables and descriptors for the | |
624 | file being read. */ | |
625 | ||
626 | static void | |
627 | lto_input_ts_decl_with_vis_tree_pointers (struct lto_input_block *ib, | |
628 | struct data_in *data_in, tree expr) | |
629 | { | |
630 | tree id; | |
631 | ||
b9393656 | 632 | id = stream_read_tree (ib, data_in); |
f0efc7aa DN |
633 | if (id) |
634 | { | |
635 | gcc_assert (TREE_CODE (id) == IDENTIFIER_NODE); | |
636 | SET_DECL_ASSEMBLER_NAME (expr, id); | |
637 | } | |
638 | ||
b9393656 DN |
639 | DECL_SECTION_NAME (expr) = stream_read_tree (ib, data_in); |
640 | DECL_COMDAT_GROUP (expr) = stream_read_tree (ib, data_in); | |
f0efc7aa DN |
641 | } |
642 | ||
643 | ||
644 | /* Read all pointer fields in the TS_FIELD_DECL structure of EXPR from | |
645 | input block IB. DATA_IN contains tables and descriptors for the | |
646 | file being read. */ | |
647 | ||
648 | static void | |
649 | lto_input_ts_field_decl_tree_pointers (struct lto_input_block *ib, | |
650 | struct data_in *data_in, tree expr) | |
651 | { | |
b9393656 DN |
652 | DECL_FIELD_OFFSET (expr) = stream_read_tree (ib, data_in); |
653 | DECL_BIT_FIELD_TYPE (expr) = stream_read_tree (ib, data_in); | |
26c71b93 | 654 | DECL_BIT_FIELD_REPRESENTATIVE (expr) = stream_read_tree (ib, data_in); |
b9393656 DN |
655 | DECL_FIELD_BIT_OFFSET (expr) = stream_read_tree (ib, data_in); |
656 | DECL_FCONTEXT (expr) = stream_read_tree (ib, data_in); | |
f0efc7aa DN |
657 | } |
658 | ||
659 | ||
660 | /* Read all pointer fields in the TS_FUNCTION_DECL structure of EXPR | |
661 | from input block IB. DATA_IN contains tables and descriptors for the | |
662 | file being read. */ | |
663 | ||
664 | static void | |
665 | lto_input_ts_function_decl_tree_pointers (struct lto_input_block *ib, | |
666 | struct data_in *data_in, tree expr) | |
667 | { | |
668 | /* DECL_STRUCT_FUNCTION is handled by lto_input_function. FIXME lto, | |
669 | maybe it should be handled here? */ | |
b9393656 DN |
670 | DECL_FUNCTION_PERSONALITY (expr) = stream_read_tree (ib, data_in); |
671 | DECL_FUNCTION_SPECIFIC_TARGET (expr) = stream_read_tree (ib, data_in); | |
672 | DECL_FUNCTION_SPECIFIC_OPTIMIZATION (expr) = stream_read_tree (ib, data_in); | |
f0efc7aa DN |
673 | |
674 | /* If the file contains a function with an EH personality set, | |
675 | then it was compiled with -fexceptions. In that case, initialize | |
676 | the backend EH machinery. */ | |
677 | if (DECL_FUNCTION_PERSONALITY (expr)) | |
678 | lto_init_eh (); | |
679 | } | |
680 | ||
681 | ||
682 | /* Read all pointer fields in the TS_TYPE_COMMON structure of EXPR from | |
683 | input block IB. DATA_IN contains tables and descriptors for the file | |
684 | being read. */ | |
685 | ||
686 | static void | |
687 | lto_input_ts_type_common_tree_pointers (struct lto_input_block *ib, | |
688 | struct data_in *data_in, tree expr) | |
689 | { | |
b9393656 DN |
690 | TYPE_SIZE (expr) = stream_read_tree (ib, data_in); |
691 | TYPE_SIZE_UNIT (expr) = stream_read_tree (ib, data_in); | |
692 | TYPE_ATTRIBUTES (expr) = stream_read_tree (ib, data_in); | |
693 | TYPE_NAME (expr) = stream_read_tree (ib, data_in); | |
f0efc7aa DN |
694 | /* Do not stream TYPE_POINTER_TO or TYPE_REFERENCE_TO. They will be |
695 | reconstructed during fixup. */ | |
696 | /* Do not stream TYPE_NEXT_VARIANT, we reconstruct the variant lists | |
697 | during fixup. */ | |
b9393656 DN |
698 | TYPE_MAIN_VARIANT (expr) = stream_read_tree (ib, data_in); |
699 | TYPE_CONTEXT (expr) = stream_read_tree (ib, data_in); | |
f0efc7aa DN |
700 | /* TYPE_CANONICAL gets re-computed during type merging. */ |
701 | TYPE_CANONICAL (expr) = NULL_TREE; | |
b9393656 | 702 | TYPE_STUB_DECL (expr) = stream_read_tree (ib, data_in); |
f0efc7aa DN |
703 | } |
704 | ||
705 | /* Read all pointer fields in the TS_TYPE_NON_COMMON structure of EXPR | |
706 | from input block IB. DATA_IN contains tables and descriptors for the | |
707 | file being read. */ | |
708 | ||
709 | static void | |
710 | lto_input_ts_type_non_common_tree_pointers (struct lto_input_block *ib, | |
711 | struct data_in *data_in, | |
712 | tree expr) | |
713 | { | |
714 | if (TREE_CODE (expr) == ENUMERAL_TYPE) | |
b9393656 | 715 | TYPE_VALUES (expr) = stream_read_tree (ib, data_in); |
f0efc7aa | 716 | else if (TREE_CODE (expr) == ARRAY_TYPE) |
b9393656 | 717 | TYPE_DOMAIN (expr) = stream_read_tree (ib, data_in); |
f0efc7aa | 718 | else if (RECORD_OR_UNION_TYPE_P (expr)) |
4acd1c84 | 719 | TYPE_FIELDS (expr) = streamer_read_chain (ib, data_in); |
f0efc7aa DN |
720 | else if (TREE_CODE (expr) == FUNCTION_TYPE |
721 | || TREE_CODE (expr) == METHOD_TYPE) | |
b9393656 | 722 | TYPE_ARG_TYPES (expr) = stream_read_tree (ib, data_in); |
f0efc7aa DN |
723 | |
724 | if (!POINTER_TYPE_P (expr)) | |
b9393656 DN |
725 | TYPE_MINVAL (expr) = stream_read_tree (ib, data_in); |
726 | TYPE_MAXVAL (expr) = stream_read_tree (ib, data_in); | |
f0efc7aa | 727 | if (RECORD_OR_UNION_TYPE_P (expr)) |
b9393656 | 728 | TYPE_BINFO (expr) = stream_read_tree (ib, data_in); |
f0efc7aa DN |
729 | } |
730 | ||
731 | ||
732 | /* Read all pointer fields in the TS_LIST structure of EXPR from input | |
733 | block IB. DATA_IN contains tables and descriptors for the | |
734 | file being read. */ | |
735 | ||
736 | static void | |
737 | lto_input_ts_list_tree_pointers (struct lto_input_block *ib, | |
738 | struct data_in *data_in, tree expr) | |
739 | { | |
b9393656 DN |
740 | TREE_PURPOSE (expr) = stream_read_tree (ib, data_in); |
741 | TREE_VALUE (expr) = stream_read_tree (ib, data_in); | |
412288f1 | 742 | TREE_CHAIN (expr) = streamer_read_chain (ib, data_in); |
f0efc7aa DN |
743 | } |
744 | ||
745 | ||
746 | /* Read all pointer fields in the TS_VEC structure of EXPR from input | |
747 | block IB. DATA_IN contains tables and descriptors for the | |
748 | file being read. */ | |
749 | ||
750 | static void | |
751 | lto_input_ts_vec_tree_pointers (struct lto_input_block *ib, | |
752 | struct data_in *data_in, tree expr) | |
753 | { | |
754 | int i; | |
755 | ||
412288f1 | 756 | /* Note that TREE_VEC_LENGTH was read by streamer_alloc_tree to |
f0efc7aa DN |
757 | instantiate EXPR. */ |
758 | for (i = 0; i < TREE_VEC_LENGTH (expr); i++) | |
b9393656 | 759 | TREE_VEC_ELT (expr, i) = stream_read_tree (ib, data_in); |
f0efc7aa DN |
760 | } |
761 | ||
762 | ||
763 | /* Read all pointer fields in the TS_EXP structure of EXPR from input | |
764 | block IB. DATA_IN contains tables and descriptors for the | |
765 | file being read. */ | |
766 | ||
767 | ||
768 | static void | |
769 | lto_input_ts_exp_tree_pointers (struct lto_input_block *ib, | |
770 | struct data_in *data_in, tree expr) | |
771 | { | |
772 | int i, length; | |
773 | location_t loc; | |
774 | ||
412288f1 | 775 | length = streamer_read_hwi (ib); |
f0efc7aa DN |
776 | gcc_assert (length == TREE_OPERAND_LENGTH (expr)); |
777 | ||
778 | for (i = 0; i < length; i++) | |
b9393656 | 779 | TREE_OPERAND (expr, i) = stream_read_tree (ib, data_in); |
f0efc7aa DN |
780 | |
781 | loc = lto_input_location (ib, data_in); | |
782 | SET_EXPR_LOCATION (expr, loc); | |
5368224f | 783 | TREE_SET_BLOCK (expr, stream_read_tree (ib, data_in)); |
f0efc7aa DN |
784 | } |
785 | ||
786 | ||
787 | /* Read all pointer fields in the TS_BLOCK structure of EXPR from input | |
788 | block IB. DATA_IN contains tables and descriptors for the | |
789 | file being read. */ | |
790 | ||
791 | static void | |
792 | lto_input_ts_block_tree_pointers (struct lto_input_block *ib, | |
793 | struct data_in *data_in, tree expr) | |
794 | { | |
795 | /* Do not stream BLOCK_SOURCE_LOCATION. We cannot handle debug information | |
796 | for early inlining so drop it on the floor instead of ICEing in | |
797 | dwarf2out.c. */ | |
412288f1 | 798 | BLOCK_VARS (expr) = streamer_read_chain (ib, data_in); |
f0efc7aa DN |
799 | |
800 | /* Do not stream BLOCK_NONLOCALIZED_VARS. We cannot handle debug information | |
801 | for early inlining so drop it on the floor instead of ICEing in | |
802 | dwarf2out.c. */ | |
803 | ||
b9393656 | 804 | BLOCK_SUPERCONTEXT (expr) = stream_read_tree (ib, data_in); |
f0efc7aa DN |
805 | |
806 | /* Do not stream BLOCK_ABSTRACT_ORIGIN. We cannot handle debug information | |
807 | for early inlining so drop it on the floor instead of ICEing in | |
808 | dwarf2out.c. */ | |
b9393656 DN |
809 | BLOCK_FRAGMENT_ORIGIN (expr) = stream_read_tree (ib, data_in); |
810 | BLOCK_FRAGMENT_CHAIN (expr) = stream_read_tree (ib, data_in); | |
f0efc7aa DN |
811 | |
812 | /* We re-compute BLOCK_SUBBLOCKS of our parent here instead | |
813 | of streaming it. For non-BLOCK BLOCK_SUPERCONTEXTs we still | |
814 | stream the child relationship explicitly. */ | |
815 | if (BLOCK_SUPERCONTEXT (expr) | |
816 | && TREE_CODE (BLOCK_SUPERCONTEXT (expr)) == BLOCK) | |
817 | { | |
818 | BLOCK_CHAIN (expr) = BLOCK_SUBBLOCKS (BLOCK_SUPERCONTEXT (expr)); | |
819 | BLOCK_SUBBLOCKS (BLOCK_SUPERCONTEXT (expr)) = expr; | |
820 | } | |
821 | ||
822 | /* The global block is rooted at the TU decl. Hook it here to | |
823 | avoid the need to stream in this block during WPA time. */ | |
824 | else if (BLOCK_SUPERCONTEXT (expr) | |
825 | && TREE_CODE (BLOCK_SUPERCONTEXT (expr)) == TRANSLATION_UNIT_DECL) | |
826 | DECL_INITIAL (BLOCK_SUPERCONTEXT (expr)) = expr; | |
827 | ||
828 | /* The function-level block is connected at the time we read in | |
829 | function bodies for the same reason. */ | |
830 | } | |
831 | ||
832 | ||
833 | /* Read all pointer fields in the TS_BINFO structure of EXPR from input | |
834 | block IB. DATA_IN contains tables and descriptors for the | |
835 | file being read. */ | |
836 | ||
837 | static void | |
838 | lto_input_ts_binfo_tree_pointers (struct lto_input_block *ib, | |
839 | struct data_in *data_in, tree expr) | |
840 | { | |
841 | unsigned i, len; | |
842 | tree t; | |
843 | ||
844 | /* Note that the number of slots in EXPR was read in | |
412288f1 | 845 | streamer_alloc_tree when instantiating EXPR. However, the |
f0efc7aa DN |
846 | vector is empty so we cannot rely on VEC_length to know how many |
847 | elements to read. So, this list is emitted as a 0-terminated | |
848 | list on the writer side. */ | |
849 | do | |
850 | { | |
b9393656 | 851 | t = stream_read_tree (ib, data_in); |
f0efc7aa DN |
852 | if (t) |
853 | VEC_quick_push (tree, BINFO_BASE_BINFOS (expr), t); | |
854 | } | |
855 | while (t); | |
856 | ||
b9393656 DN |
857 | BINFO_OFFSET (expr) = stream_read_tree (ib, data_in); |
858 | BINFO_VTABLE (expr) = stream_read_tree (ib, data_in); | |
b9393656 | 859 | BINFO_VPTR_FIELD (expr) = stream_read_tree (ib, data_in); |
f0efc7aa | 860 | |
412288f1 | 861 | len = streamer_read_uhwi (ib); |
f0efc7aa DN |
862 | if (len > 0) |
863 | { | |
864 | VEC_reserve_exact (tree, gc, BINFO_BASE_ACCESSES (expr), len); | |
865 | for (i = 0; i < len; i++) | |
866 | { | |
b9393656 | 867 | tree a = stream_read_tree (ib, data_in); |
f0efc7aa DN |
868 | VEC_quick_push (tree, BINFO_BASE_ACCESSES (expr), a); |
869 | } | |
870 | } | |
871 | ||
b9393656 DN |
872 | BINFO_INHERITANCE_CHAIN (expr) = stream_read_tree (ib, data_in); |
873 | BINFO_SUBVTT_INDEX (expr) = stream_read_tree (ib, data_in); | |
874 | BINFO_VPTR_INDEX (expr) = stream_read_tree (ib, data_in); | |
f0efc7aa DN |
875 | } |
876 | ||
877 | ||
878 | /* Read all pointer fields in the TS_CONSTRUCTOR structure of EXPR from | |
879 | input block IB. DATA_IN contains tables and descriptors for the | |
880 | file being read. */ | |
881 | ||
882 | static void | |
883 | lto_input_ts_constructor_tree_pointers (struct lto_input_block *ib, | |
884 | struct data_in *data_in, tree expr) | |
885 | { | |
886 | unsigned i, len; | |
887 | ||
412288f1 | 888 | len = streamer_read_uhwi (ib); |
f0efc7aa DN |
889 | for (i = 0; i < len; i++) |
890 | { | |
891 | tree index, value; | |
892 | ||
b9393656 DN |
893 | index = stream_read_tree (ib, data_in); |
894 | value = stream_read_tree (ib, data_in); | |
f0efc7aa DN |
895 | CONSTRUCTOR_APPEND_ELT (CONSTRUCTOR_ELTS (expr), index, value); |
896 | } | |
897 | } | |
898 | ||
899 | ||
900 | /* Input a TS_TARGET_OPTION tree from IB into EXPR. */ | |
901 | ||
902 | static void | |
903 | lto_input_ts_target_option (struct lto_input_block *ib, tree expr) | |
904 | { | |
905 | unsigned i, len; | |
906 | struct bitpack_d bp; | |
907 | struct cl_target_option *t = TREE_TARGET_OPTION (expr); | |
908 | ||
412288f1 | 909 | bp = streamer_read_bitpack (ib); |
f0efc7aa DN |
910 | len = sizeof (struct cl_target_option); |
911 | for (i = 0; i < len; i++) | |
912 | ((unsigned char *)t)[i] = bp_unpack_value (&bp, 8); | |
913 | if (bp_unpack_value (&bp, 32) != 0x12345678) | |
914 | fatal_error ("cl_target_option size mismatch in LTO reader and writer"); | |
915 | } | |
916 | ||
10d12a3e RG |
917 | /* Input a TS_OPTIMIZATION tree from IB into EXPR. */ |
918 | ||
919 | static void | |
920 | lto_input_ts_optimization (struct lto_input_block *ib, tree expr) | |
921 | { | |
922 | unsigned i, len; | |
923 | struct bitpack_d bp; | |
924 | struct cl_optimization *t = TREE_OPTIMIZATION (expr); | |
925 | ||
926 | bp = streamer_read_bitpack (ib); | |
927 | len = sizeof (struct cl_optimization); | |
928 | for (i = 0; i < len; i++) | |
929 | ((unsigned char *)t)[i] = bp_unpack_value (&bp, 8); | |
930 | if (bp_unpack_value (&bp, 32) != 0x12345678) | |
931 | fatal_error ("cl_optimization size mismatch in LTO reader and writer"); | |
932 | } | |
933 | ||
f0efc7aa DN |
934 | /* Input a TS_TRANSLATION_UNIT_DECL tree from IB and DATA_IN into EXPR. */ |
935 | ||
936 | static void | |
937 | lto_input_ts_translation_unit_decl_tree_pointers (struct lto_input_block *ib, | |
938 | struct data_in *data_in, | |
939 | tree expr) | |
940 | { | |
412288f1 | 941 | TRANSLATION_UNIT_LANGUAGE (expr) = xstrdup (streamer_read_string (data_in, ib)); |
f0efc7aa DN |
942 | VEC_safe_push (tree, gc, all_translation_units, expr); |
943 | } | |
944 | ||
b9393656 DN |
945 | /* Read all pointer fields in EXPR from input block IB. DATA_IN |
946 | contains tables and descriptors for the file being read. */ | |
f0efc7aa | 947 | |
b9393656 | 948 | void |
412288f1 | 949 | streamer_read_tree_body (struct lto_input_block *ib, struct data_in *data_in, |
f0efc7aa DN |
950 | tree expr) |
951 | { | |
952 | enum tree_code code; | |
953 | ||
954 | code = TREE_CODE (expr); | |
955 | ||
956 | if (CODE_CONTAINS_STRUCT (code, TS_TYPED)) | |
957 | lto_input_ts_common_tree_pointers (ib, data_in, expr); | |
958 | ||
959 | if (CODE_CONTAINS_STRUCT (code, TS_VECTOR)) | |
960 | lto_input_ts_vector_tree_pointers (ib, data_in, expr); | |
961 | ||
962 | if (CODE_CONTAINS_STRUCT (code, TS_COMPLEX)) | |
963 | lto_input_ts_complex_tree_pointers (ib, data_in, expr); | |
964 | ||
965 | if (CODE_CONTAINS_STRUCT (code, TS_DECL_MINIMAL)) | |
966 | lto_input_ts_decl_minimal_tree_pointers (ib, data_in, expr); | |
967 | ||
968 | if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON)) | |
969 | lto_input_ts_decl_common_tree_pointers (ib, data_in, expr); | |
970 | ||
971 | if (CODE_CONTAINS_STRUCT (code, TS_DECL_NON_COMMON)) | |
972 | lto_input_ts_decl_non_common_tree_pointers (ib, data_in, expr); | |
973 | ||
974 | if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS)) | |
975 | lto_input_ts_decl_with_vis_tree_pointers (ib, data_in, expr); | |
976 | ||
977 | if (CODE_CONTAINS_STRUCT (code, TS_FIELD_DECL)) | |
978 | lto_input_ts_field_decl_tree_pointers (ib, data_in, expr); | |
979 | ||
980 | if (CODE_CONTAINS_STRUCT (code, TS_FUNCTION_DECL)) | |
981 | lto_input_ts_function_decl_tree_pointers (ib, data_in, expr); | |
982 | ||
983 | if (CODE_CONTAINS_STRUCT (code, TS_TYPE_COMMON)) | |
984 | lto_input_ts_type_common_tree_pointers (ib, data_in, expr); | |
985 | ||
986 | if (CODE_CONTAINS_STRUCT (code, TS_TYPE_NON_COMMON)) | |
987 | lto_input_ts_type_non_common_tree_pointers (ib, data_in, expr); | |
988 | ||
989 | if (CODE_CONTAINS_STRUCT (code, TS_LIST)) | |
990 | lto_input_ts_list_tree_pointers (ib, data_in, expr); | |
991 | ||
992 | if (CODE_CONTAINS_STRUCT (code, TS_VEC)) | |
993 | lto_input_ts_vec_tree_pointers (ib, data_in, expr); | |
994 | ||
995 | if (CODE_CONTAINS_STRUCT (code, TS_EXP)) | |
996 | lto_input_ts_exp_tree_pointers (ib, data_in, expr); | |
997 | ||
998 | if (CODE_CONTAINS_STRUCT (code, TS_BLOCK)) | |
999 | lto_input_ts_block_tree_pointers (ib, data_in, expr); | |
1000 | ||
1001 | if (CODE_CONTAINS_STRUCT (code, TS_BINFO)) | |
1002 | lto_input_ts_binfo_tree_pointers (ib, data_in, expr); | |
1003 | ||
1004 | if (CODE_CONTAINS_STRUCT (code, TS_CONSTRUCTOR)) | |
1005 | lto_input_ts_constructor_tree_pointers (ib, data_in, expr); | |
1006 | ||
1007 | if (CODE_CONTAINS_STRUCT (code, TS_TARGET_OPTION)) | |
1008 | lto_input_ts_target_option (ib, expr); | |
1009 | ||
10d12a3e RG |
1010 | if (CODE_CONTAINS_STRUCT (code, TS_OPTIMIZATION)) |
1011 | lto_input_ts_optimization (ib, expr); | |
1012 | ||
f0efc7aa DN |
1013 | if (CODE_CONTAINS_STRUCT (code, TS_TRANSLATION_UNIT_DECL)) |
1014 | lto_input_ts_translation_unit_decl_tree_pointers (ib, data_in, expr); | |
1015 | } | |
1016 | ||
1017 | ||
f0efc7aa DN |
1018 | /* Read and INTEGER_CST node from input block IB using the per-file |
1019 | context in DATA_IN. */ | |
1020 | ||
b9393656 | 1021 | tree |
412288f1 | 1022 | streamer_read_integer_cst (struct lto_input_block *ib, struct data_in *data_in) |
f0efc7aa DN |
1023 | { |
1024 | tree result, type; | |
1025 | HOST_WIDE_INT low, high; | |
1026 | bool overflow_p; | |
1027 | ||
b9393656 | 1028 | type = stream_read_tree (ib, data_in); |
412288f1 DN |
1029 | overflow_p = (streamer_read_uchar (ib) != 0); |
1030 | low = streamer_read_uhwi (ib); | |
1031 | high = streamer_read_uhwi (ib); | |
f0efc7aa DN |
1032 | result = build_int_cst_wide (type, low, high); |
1033 | ||
1034 | /* If the original constant had overflown, build a replica of RESULT to | |
1035 | avoid modifying the shared constant returned by build_int_cst_wide. */ | |
1036 | if (overflow_p) | |
1037 | { | |
1038 | result = copy_node (result); | |
1039 | TREE_OVERFLOW (result) = 1; | |
1040 | } | |
1041 | ||
1042 | return result; | |
1043 | } | |
1044 | ||
1045 | ||
1046 | /* Read an index IX from input block IB and return the tree node at | |
1047 | DATA_IN->FILE_DATA->GLOBALS_INDEX[IX]. */ | |
1048 | ||
b9393656 | 1049 | tree |
412288f1 | 1050 | streamer_get_pickled_tree (struct lto_input_block *ib, struct data_in *data_in) |
f0efc7aa DN |
1051 | { |
1052 | unsigned HOST_WIDE_INT ix; | |
1053 | tree result; | |
1054 | enum LTO_tags expected_tag; | |
1055 | ||
412288f1 DN |
1056 | ix = streamer_read_uhwi (ib); |
1057 | expected_tag = streamer_read_enum (ib, LTO_tags, LTO_NUM_TAGS); | |
f0efc7aa | 1058 | |
412288f1 | 1059 | result = streamer_tree_cache_get (data_in->reader_cache, ix); |
f0efc7aa DN |
1060 | gcc_assert (result |
1061 | && TREE_CODE (result) == lto_tag_to_tree_code (expected_tag)); | |
1062 | ||
1063 | return result; | |
1064 | } | |
1065 | ||
1066 | ||
1067 | /* Read a code and class from input block IB and return the | |
b9393656 | 1068 | corresponding builtin. DATA_IN is as in stream_read_tree. */ |
f0efc7aa | 1069 | |
b9393656 | 1070 | tree |
412288f1 | 1071 | streamer_get_builtin_tree (struct lto_input_block *ib, struct data_in *data_in) |
f0efc7aa DN |
1072 | { |
1073 | enum built_in_class fclass; | |
1074 | enum built_in_function fcode; | |
1075 | const char *asmname; | |
1076 | tree result; | |
1077 | ||
412288f1 | 1078 | fclass = streamer_read_enum (ib, built_in_class, BUILT_IN_LAST); |
f0efc7aa DN |
1079 | gcc_assert (fclass == BUILT_IN_NORMAL || fclass == BUILT_IN_MD); |
1080 | ||
412288f1 | 1081 | fcode = (enum built_in_function) streamer_read_uhwi (ib); |
f0efc7aa DN |
1082 | |
1083 | if (fclass == BUILT_IN_NORMAL) | |
1084 | { | |
1085 | if (fcode >= END_BUILTINS) | |
1086 | fatal_error ("machine independent builtin code out of range"); | |
e79983f4 | 1087 | result = builtin_decl_explicit (fcode); |
f0efc7aa DN |
1088 | gcc_assert (result); |
1089 | } | |
1090 | else if (fclass == BUILT_IN_MD) | |
1091 | { | |
1092 | result = targetm.builtin_decl (fcode, true); | |
1093 | if (!result || result == error_mark_node) | |
1094 | fatal_error ("target specific builtin not available"); | |
1095 | } | |
1096 | else | |
1097 | gcc_unreachable (); | |
1098 | ||
412288f1 | 1099 | asmname = streamer_read_string (data_in, ib); |
f0efc7aa DN |
1100 | if (asmname) |
1101 | set_builtin_user_assembler_name (result, asmname); | |
1102 | ||
412288f1 | 1103 | streamer_tree_cache_append (data_in->reader_cache, result); |
f0efc7aa DN |
1104 | |
1105 | return result; | |
1106 | } |