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