gcc/tree-streamer-in.c

   1 /* Routines for reading trees from a file stream.
   2
   3    Copyright (C) 2011-2015 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 "hash-set.h"
  27 #include "machmode.h"
  28 #include "vec.h"
  29 #include "double-int.h"
  30 #include "input.h"
  31 #include "alias.h"
  32 #include "symtab.h"
  33 #include "options.h"
  34 #include "wide-int.h"
  35 #include "inchash.h"
  36 #include "real.h"
  37 #include "fixed-value.h"
  38 #include "tree.h"
  39 #include "fold-const.h"
  40 #include "stringpool.h"
  41 #include "predict.h"
  42 #include "tm.h"
  43 #include "hard-reg-set.h"
  44 #include "input.h"
  45 #include "function.h"
  46 #include "basic-block.h"
  47 #include "tree-ssa-alias.h"
  48 #include "internal-fn.h"
  49 #include "gimple-expr.h"
  50 #include "is-a.h"
  51 #include "gimple.h"
  52 #include "hash-map.h"
  53 #include "plugin-api.h"
  54 #include "ipa-ref.h"
  55 #include "cgraph.h"
  56 #include "tree-streamer.h"
  57 #include "data-streamer.h"
  58 #include "streamer-hooks.h"
  59 #include "lto-streamer.h"
  60 #include "builtins.h"
  61 #include "ipa-chkp.h"
  62 #include "gomp-constants.h"
  63
  64
  65 /* Read a STRING_CST from the string table in DATA_IN using input
  66    block IB.  */
  67
  68 tree
  69 streamer_read_string_cst (struct data_in *data_in, struct lto_input_block *ib)
  70 {
  71   unsigned int len;
  72   const char * ptr;
  73
  74   ptr = streamer_read_indexed_string (data_in, ib, &len);
  75   if (!ptr)
  76     return NULL;
  77   return build_string (len, ptr);
  78 }
  79
  80
  81 /* Read an IDENTIFIER from the string table in DATA_IN using input
  82    block IB.  */
  83
  84 static tree
  85 input_identifier (struct data_in *data_in, struct lto_input_block *ib)
  86 {
  87   unsigned int len;
  88   const char *ptr;
  89
  90   ptr = streamer_read_indexed_string (data_in, ib, &len);
  91   if (!ptr)
  92     return NULL;
  93   return get_identifier_with_length (ptr, len);
  94 }
  95
  96
  97 /* Read a chain of tree nodes from input block IB. DATA_IN contains
  98    tables and descriptors for the file being read.  */
  99
 100 tree
 101 streamer_read_chain (struct lto_input_block *ib, struct data_in *data_in)
 102 {
 103   tree first, prev, curr;
 104
 105   /* The chain is written as NULL terminated list of trees.  */
 106   first = prev = NULL_TREE;
 107   do
 108     {
 109       curr = stream_read_tree (ib, data_in);
 110       if (prev)
 111         TREE_CHAIN (prev) = curr;
 112       else
 113         first = curr;
 114
 115       prev = curr;
 116     }
 117   while (curr);
 118
 119   return first;
 120 }
 121
 122
 123 /* Unpack all the non-pointer fields of the TS_BASE structure of
 124    expression EXPR from bitpack BP.  */
 125
 126 static inline void
 127 unpack_ts_base_value_fields (struct bitpack_d *bp, tree expr)
 128 {
 129   /* Note that the code for EXPR has already been unpacked to create EXPR in
 130      streamer_alloc_tree.  */
 131   if (!TYPE_P (expr))
 132     {
 133       TREE_SIDE_EFFECTS (expr) = (unsigned) bp_unpack_value (bp, 1);
 134       TREE_CONSTANT (expr) = (unsigned) bp_unpack_value (bp, 1);
 135       TREE_READONLY (expr) = (unsigned) bp_unpack_value (bp, 1);
 136
 137       /* TREE_PUBLIC is used on types to indicate that the type
 138          has a TYPE_CACHED_VALUES vector.  This is not streamed out,
 139          so we skip it here.  */
 140       TREE_PUBLIC (expr) = (unsigned) bp_unpack_value (bp, 1);
 141     }
 142   else
 143     bp_unpack_value (bp, 4);
 144   TREE_ADDRESSABLE (expr) = (unsigned) bp_unpack_value (bp, 1);
 145   TREE_THIS_VOLATILE (expr) = (unsigned) bp_unpack_value (bp, 1);
 146   if (DECL_P (expr))
 147     DECL_UNSIGNED (expr) = (unsigned) bp_unpack_value (bp, 1);
 148   else if (TYPE_P (expr))
 149     TYPE_UNSIGNED (expr) = (unsigned) bp_unpack_value (bp, 1);
 150   else
 151     bp_unpack_value (bp, 1);
 152   TREE_ASM_WRITTEN (expr) = (unsigned) bp_unpack_value (bp, 1);
 153   if (TYPE_P (expr))
 154     TYPE_ARTIFICIAL (expr) = (unsigned) bp_unpack_value (bp, 1);
 155   else
 156     TREE_NO_WARNING (expr) = (unsigned) bp_unpack_value (bp, 1);
 157   TREE_NOTHROW (expr) = (unsigned) bp_unpack_value (bp, 1);
 158   TREE_STATIC (expr) = (unsigned) bp_unpack_value (bp, 1);
 159   if (TREE_CODE (expr) != TREE_BINFO)
 160     TREE_PRIVATE (expr) = (unsigned) bp_unpack_value (bp, 1);
 161   else
 162     bp_unpack_value (bp, 1);
 163   TREE_PROTECTED (expr) = (unsigned) bp_unpack_value (bp, 1);
 164   TREE_DEPRECATED (expr) = (unsigned) bp_unpack_value (bp, 1);
 165   if (TYPE_P (expr))
 166     {
 167       TYPE_SATURATING (expr) = (unsigned) bp_unpack_value (bp, 1);
 168       TYPE_ADDR_SPACE (expr) = (unsigned) bp_unpack_value (bp, 8);
 169     }
 170   else if (TREE_CODE (expr) == SSA_NAME)
 171     {
 172       SSA_NAME_IS_DEFAULT_DEF (expr) = (unsigned) bp_unpack_value (bp, 1);
 173       bp_unpack_value (bp, 8);
 174     }
 175   else
 176     bp_unpack_value (bp, 9);
 177 }
 178
 179
 180 /* Unpack all the non-pointer fields of the TS_INT_CST structure of
 181    expression EXPR from bitpack BP.  */
 182
 183 static void
 184 unpack_ts_int_cst_value_fields (struct bitpack_d *bp, tree expr)
 185 {
 186   int i;
 187   for (i = 0; i < TREE_INT_CST_EXT_NUNITS (expr); i++)
 188     TREE_INT_CST_ELT (expr, i) = bp_unpack_var_len_int (bp);
 189 }
 190
 191
 192 /* Unpack all the non-pointer fields of the TS_REAL_CST structure of
 193    expression EXPR from bitpack BP.  */
 194
 195 static void
 196 unpack_ts_real_cst_value_fields (struct bitpack_d *bp, tree expr)
 197 {
 198   unsigned i;
 199   REAL_VALUE_TYPE r;
 200   REAL_VALUE_TYPE *rp;
 201
 202   /* Clear all bits of the real value type so that we can later do
 203      bitwise comparisons to see if two values are the same.  */
 204   memset (&r, 0, sizeof r);
 205   r.cl = (unsigned) bp_unpack_value (bp, 2);
 206   r.decimal = (unsigned) bp_unpack_value (bp, 1);
 207   r.sign = (unsigned) bp_unpack_value (bp, 1);
 208   r.signalling = (unsigned) bp_unpack_value (bp, 1);
 209   r.canonical = (unsigned) bp_unpack_value (bp, 1);
 210   r.uexp = (unsigned) bp_unpack_value (bp, EXP_BITS);
 211   for (i = 0; i < SIGSZ; i++)
 212     r.sig[i] = (unsigned long) bp_unpack_value (bp, HOST_BITS_PER_LONG);
 213
 214   rp = ggc_alloc<real_value> ();
 215   memcpy (rp, &r, sizeof (REAL_VALUE_TYPE));
 216   TREE_REAL_CST_PTR (expr) = rp;
 217 }
 218
 219
 220 /* Unpack all the non-pointer fields of the TS_FIXED_CST structure of
 221    expression EXPR from bitpack BP.  */
 222
 223 static void
 224 unpack_ts_fixed_cst_value_fields (struct bitpack_d *bp, tree expr)
 225 {
 226   FIXED_VALUE_TYPE *fp = ggc_alloc<fixed_value> ();
 227   fp->mode = bp_unpack_enum (bp, machine_mode, MAX_MACHINE_MODE);
 228   fp->data.low = bp_unpack_var_len_int (bp);
 229   fp->data.high = bp_unpack_var_len_int (bp);
 230   TREE_FIXED_CST_PTR (expr) = fp;
 231 }
 232
 233 /* Unpack all the non-pointer fields of the TS_DECL_COMMON structure
 234    of expression EXPR from bitpack BP.  */
 235
 236 static void
 237 unpack_ts_decl_common_value_fields (struct bitpack_d *bp, tree expr)
 238 {
 239   DECL_MODE (expr) = bp_unpack_enum (bp, machine_mode, MAX_MACHINE_MODE);
 240   DECL_NONLOCAL (expr) = (unsigned) bp_unpack_value (bp, 1);
 241   DECL_VIRTUAL_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 242   DECL_IGNORED_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 243   DECL_ABSTRACT_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 244   DECL_ARTIFICIAL (expr) = (unsigned) bp_unpack_value (bp, 1);
 245   DECL_USER_ALIGN (expr) = (unsigned) bp_unpack_value (bp, 1);
 246   DECL_PRESERVE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 247   DECL_EXTERNAL (expr) = (unsigned) bp_unpack_value (bp, 1);
 248   DECL_GIMPLE_REG_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 249   DECL_ALIGN (expr) = (unsigned) bp_unpack_var_len_unsigned (bp);
 250
 251   if (TREE_CODE (expr) == LABEL_DECL)
 252     {
 253       EH_LANDING_PAD_NR (expr) = (int) bp_unpack_var_len_unsigned (bp);
 254
 255       /* Always assume an initial value of -1 for LABEL_DECL_UID to
 256          force gimple_set_bb to recreate label_to_block_map.  */
 257       LABEL_DECL_UID (expr) = -1;
 258     }
 259
 260   if (TREE_CODE (expr) == FIELD_DECL)
 261     {
 262       DECL_PACKED (expr) = (unsigned) bp_unpack_value (bp, 1);
 263       DECL_NONADDRESSABLE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 264       expr->decl_common.off_align = bp_unpack_value (bp, 8);
 265     }
 266
 267   if (TREE_CODE (expr) == VAR_DECL)
 268     {
 269       DECL_HAS_DEBUG_EXPR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 270       DECL_NONLOCAL_FRAME (expr) = (unsigned) bp_unpack_value (bp, 1);
 271     }
 272
 273   if (TREE_CODE (expr) == RESULT_DECL
 274       || TREE_CODE (expr) == PARM_DECL
 275       || TREE_CODE (expr) == VAR_DECL)
 276     {
 277       DECL_BY_REFERENCE (expr) = (unsigned) bp_unpack_value (bp, 1);
 278       if (TREE_CODE (expr) == VAR_DECL
 279           || TREE_CODE (expr) == PARM_DECL)
 280         DECL_HAS_VALUE_EXPR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 281     }
 282 }
 283
 284
 285 /* Unpack all the non-pointer fields of the TS_DECL_WRTL structure
 286    of expression EXPR from bitpack BP.  */
 287
 288 static void
 289 unpack_ts_decl_wrtl_value_fields (struct bitpack_d *bp, tree expr)
 290 {
 291   DECL_REGISTER (expr) = (unsigned) bp_unpack_value (bp, 1);
 292 }
 293
 294
 295 /* Unpack all the non-pointer fields of the TS_DECL_WITH_VIS structure
 296    of expression EXPR from bitpack BP.  */
 297
 298 static void
 299 unpack_ts_decl_with_vis_value_fields (struct bitpack_d *bp, tree expr)
 300 {
 301   DECL_COMMON (expr) = (unsigned) bp_unpack_value (bp, 1);
 302   DECL_DLLIMPORT_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 303   DECL_WEAK (expr) = (unsigned) bp_unpack_value (bp, 1);
 304   DECL_SEEN_IN_BIND_EXPR_P (expr) = (unsigned) bp_unpack_value (bp,  1);
 305   DECL_COMDAT (expr) = (unsigned) bp_unpack_value (bp,  1);
 306   DECL_VISIBILITY (expr) = (enum symbol_visibility) bp_unpack_value (bp,  2);
 307   DECL_VISIBILITY_SPECIFIED (expr) = (unsigned) bp_unpack_value (bp,  1);
 308
 309   if (TREE_CODE (expr) == VAR_DECL)
 310     {
 311       DECL_HARD_REGISTER (expr) = (unsigned) bp_unpack_value (bp, 1);
 312       DECL_IN_CONSTANT_POOL (expr) = (unsigned) bp_unpack_value (bp, 1);
 313     }
 314
 315   if (TREE_CODE (expr) == FUNCTION_DECL)
 316     {
 317       DECL_FINAL_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 318       DECL_CXX_CONSTRUCTOR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 319       DECL_CXX_DESTRUCTOR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 320     }
 321 }
 322
 323
 324 /* Unpack all the non-pointer fields of the TS_FUNCTION_DECL structure
 325    of expression EXPR from bitpack BP.  */
 326
 327 static void
 328 unpack_ts_function_decl_value_fields (struct bitpack_d *bp, tree expr)
 329 {
 330   DECL_BUILT_IN_CLASS (expr) = bp_unpack_enum (bp, built_in_class,
 331                                                BUILT_IN_LAST);
 332   DECL_STATIC_CONSTRUCTOR (expr) = (unsigned) bp_unpack_value (bp, 1);
 333   DECL_STATIC_DESTRUCTOR (expr) = (unsigned) bp_unpack_value (bp, 1);
 334   DECL_UNINLINABLE (expr) = (unsigned) bp_unpack_value (bp, 1);
 335   DECL_POSSIBLY_INLINED (expr) = (unsigned) bp_unpack_value (bp, 1);
 336   DECL_IS_NOVOPS (expr) = (unsigned) bp_unpack_value (bp, 1);
 337   DECL_IS_RETURNS_TWICE (expr) = (unsigned) bp_unpack_value (bp, 1);
 338   DECL_IS_MALLOC (expr) = (unsigned) bp_unpack_value (bp, 1);
 339   DECL_IS_OPERATOR_NEW (expr) = (unsigned) bp_unpack_value (bp, 1);
 340   DECL_DECLARED_INLINE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 341   DECL_STATIC_CHAIN (expr) = (unsigned) bp_unpack_value (bp, 1);
 342   DECL_NO_INLINE_WARNING_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 343   DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT (expr)
 344                         = (unsigned) bp_unpack_value (bp, 1);
 345   DECL_NO_LIMIT_STACK (expr) = (unsigned) bp_unpack_value (bp, 1);
 346   DECL_DISREGARD_INLINE_LIMITS (expr) = (unsigned) bp_unpack_value (bp, 1);
 347   DECL_PURE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 348   DECL_LOOPING_CONST_OR_PURE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 349   if (DECL_BUILT_IN_CLASS (expr) != NOT_BUILT_IN)
 350     {
 351       DECL_FUNCTION_CODE (expr) = (enum built_in_function) bp_unpack_value (bp,
 352                                                                             12);
 353       if (DECL_BUILT_IN_CLASS (expr) == BUILT_IN_NORMAL
 354           && DECL_FUNCTION_CODE (expr) >= END_BUILTINS)
 355         fatal_error (input_location,
 356                      "machine independent builtin code out of range");
 357       else if (DECL_BUILT_IN_CLASS (expr) == BUILT_IN_MD)
 358         {
 359           tree result = targetm.builtin_decl (DECL_FUNCTION_CODE (expr), true);
 360           if (!result || result == error_mark_node)
 361             fatal_error (input_location,
 362                          "target specific builtin not available");
 363         }
 364     }
 365 }
 366
 367
 368 /* Unpack all the non-pointer fields of the TS_TYPE_COMMON structure
 369    of expression EXPR from bitpack BP.  */
 370
 371 static void
 372 unpack_ts_type_common_value_fields (struct bitpack_d *bp, tree expr)
 373 {
 374   machine_mode mode;
 375
 376   mode = bp_unpack_enum (bp, machine_mode, MAX_MACHINE_MODE);
 377   SET_TYPE_MODE (expr, mode);
 378   TYPE_STRING_FLAG (expr) = (unsigned) bp_unpack_value (bp, 1);
 379   TYPE_NO_FORCE_BLK (expr) = (unsigned) bp_unpack_value (bp, 1);
 380   TYPE_NEEDS_CONSTRUCTING (expr) = (unsigned) bp_unpack_value (bp, 1);
 381   if (RECORD_OR_UNION_TYPE_P (expr))
 382     {
 383       TYPE_TRANSPARENT_AGGR (expr) = (unsigned) bp_unpack_value (bp, 1);
 384       TYPE_FINAL_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 385     }
 386   else if (TREE_CODE (expr) == ARRAY_TYPE)
 387     TYPE_NONALIASED_COMPONENT (expr) = (unsigned) bp_unpack_value (bp, 1);
 388   TYPE_PACKED (expr) = (unsigned) bp_unpack_value (bp, 1);
 389   TYPE_RESTRICT (expr) = (unsigned) bp_unpack_value (bp, 1);
 390   TYPE_USER_ALIGN (expr) = (unsigned) bp_unpack_value (bp, 1);
 391   TYPE_READONLY (expr) = (unsigned) bp_unpack_value (bp, 1);
 392   TYPE_PRECISION (expr) = bp_unpack_var_len_unsigned (bp);
 393   TYPE_ALIGN (expr) = bp_unpack_var_len_unsigned (bp);
 394   TYPE_ALIAS_SET (expr) = bp_unpack_var_len_int (bp);
 395 }
 396
 397
 398 /* Unpack all the non-pointer fields of the TS_BLOCK structure
 399    of expression EXPR from bitpack BP.  */
 400
 401 static void
 402 unpack_ts_block_value_fields (struct data_in *data_in,
 403                               struct bitpack_d *bp, tree expr)
 404 {
 405   BLOCK_ABSTRACT (expr) = (unsigned) bp_unpack_value (bp, 1);
 406   /* BLOCK_NUMBER is recomputed.  */
 407   BLOCK_SOURCE_LOCATION (expr) = stream_input_location (bp, data_in);
 408 }
 409
 410 /* Unpack all the non-pointer fields of the TS_TRANSLATION_UNIT_DECL
 411    structure of expression EXPR from bitpack BP.  */
 412
 413 static void
 414 unpack_ts_translation_unit_decl_value_fields (struct data_in *data_in,
 415                                               struct bitpack_d *bp, tree expr)
 416 {
 417   TRANSLATION_UNIT_LANGUAGE (expr) = xstrdup (bp_unpack_string (data_in, bp));
 418   vec_safe_push (all_translation_units, expr);
 419 }
 420
 421
 422 /* Unpack all the non-pointer fields of the TS_OMP_CLAUSE
 423    structure of expression EXPR from bitpack BP.  */
 424
 425 static void
 426 unpack_ts_omp_clause_value_fields (struct data_in *data_in,
 427                                    struct bitpack_d *bp, tree expr)
 428 {
 429   OMP_CLAUSE_LOCATION (expr) = stream_input_location (bp, data_in);
 430   switch (OMP_CLAUSE_CODE (expr))
 431     {
 432     case OMP_CLAUSE_DEFAULT:
 433       OMP_CLAUSE_DEFAULT_KIND (expr)
 434         = bp_unpack_enum (bp, omp_clause_default_kind,
 435                           OMP_CLAUSE_DEFAULT_LAST);
 436       break;
 437     case OMP_CLAUSE_SCHEDULE:
 438       OMP_CLAUSE_SCHEDULE_KIND (expr)
 439         = bp_unpack_enum (bp, omp_clause_schedule_kind,
 440                           OMP_CLAUSE_SCHEDULE_LAST);
 441       break;
 442     case OMP_CLAUSE_DEPEND:
 443       OMP_CLAUSE_DEPEND_KIND (expr)
 444         = bp_unpack_enum (bp, omp_clause_depend_kind, OMP_CLAUSE_DEPEND_LAST);
 445       break;
 446     case OMP_CLAUSE_MAP:
 447       OMP_CLAUSE_SET_MAP_KIND (expr, bp_unpack_enum (bp, gomp_map_kind,
 448                                                      GOMP_MAP_LAST));
 449       break;
 450     case OMP_CLAUSE_PROC_BIND:
 451       OMP_CLAUSE_PROC_BIND_KIND (expr)
 452         = bp_unpack_enum (bp, omp_clause_proc_bind_kind,
 453                           OMP_CLAUSE_PROC_BIND_LAST);
 454       break;
 455     case OMP_CLAUSE_REDUCTION:
 456       OMP_CLAUSE_REDUCTION_CODE (expr)
 457         = bp_unpack_enum (bp, tree_code, MAX_TREE_CODES);
 458       break;
 459     default:
 460       break;
 461     }
 462 }
 463
 464
 465 /* Read all the language-independent bitfield values for EXPR from IB.
 466    Return the partially unpacked bitpack so the caller can unpack any other
 467    bitfield values that the writer may have written.  */
 468
 469 void
 470 streamer_read_tree_bitfields (struct lto_input_block *ib,
 471                               struct data_in *data_in, tree expr)
 472 {
 473   enum tree_code code;
 474   struct bitpack_d bp;
 475
 476   /* Read the bitpack of non-pointer values from IB.  */
 477   bp = streamer_read_bitpack (ib);
 478
 479   /* The first word in BP contains the code of the tree that we
 480      are about to read.  */
 481   code = (enum tree_code) bp_unpack_value (&bp, 16);
 482   lto_tag_check (lto_tree_code_to_tag (code),
 483                  lto_tree_code_to_tag (TREE_CODE (expr)));
 484
 485   /* Note that all these functions are highly sensitive to changes in
 486      the types and sizes of each of the fields being packed.  */
 487   unpack_ts_base_value_fields (&bp, expr);
 488
 489   if (CODE_CONTAINS_STRUCT (code, TS_INT_CST))
 490     unpack_ts_int_cst_value_fields (&bp, expr);
 491
 492   if (CODE_CONTAINS_STRUCT (code, TS_REAL_CST))
 493     unpack_ts_real_cst_value_fields (&bp, expr);
 494
 495   if (CODE_CONTAINS_STRUCT (code, TS_FIXED_CST))
 496     unpack_ts_fixed_cst_value_fields (&bp, expr);
 497
 498   if (CODE_CONTAINS_STRUCT (code, TS_DECL_MINIMAL))
 499     DECL_SOURCE_LOCATION (expr) = stream_input_location (&bp, data_in);
 500
 501   if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
 502     unpack_ts_decl_common_value_fields (&bp, expr);
 503
 504   if (CODE_CONTAINS_STRUCT (code, TS_DECL_WRTL))
 505     unpack_ts_decl_wrtl_value_fields (&bp, expr);
 506
 507   if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS))
 508     unpack_ts_decl_with_vis_value_fields (&bp, expr);
 509
 510   if (CODE_CONTAINS_STRUCT (code, TS_FUNCTION_DECL))
 511     unpack_ts_function_decl_value_fields (&bp, expr);
 512
 513   if (CODE_CONTAINS_STRUCT (code, TS_TYPE_COMMON))
 514     unpack_ts_type_common_value_fields (&bp, expr);
 515
 516   if (CODE_CONTAINS_STRUCT (code, TS_EXP))
 517     {
 518       SET_EXPR_LOCATION (expr, stream_input_location (&bp, data_in));
 519       if (code == MEM_REF
 520           || code == TARGET_MEM_REF)
 521         {
 522           MR_DEPENDENCE_CLIQUE (expr)
 523             = (unsigned)bp_unpack_value (&bp, sizeof (short) * 8);
 524           if (MR_DEPENDENCE_CLIQUE (expr) != 0)
 525             MR_DEPENDENCE_BASE (expr)
 526               = (unsigned)bp_unpack_value (&bp, sizeof (short) * 8);
 527         }
 528     }
 529
 530   if (CODE_CONTAINS_STRUCT (code, TS_BLOCK))
 531     unpack_ts_block_value_fields (data_in, &bp, expr);
 532
 533   if (CODE_CONTAINS_STRUCT (code, TS_TRANSLATION_UNIT_DECL))
 534     unpack_ts_translation_unit_decl_value_fields (data_in, &bp, expr);
 535
 536   if (CODE_CONTAINS_STRUCT (code, TS_OPTIMIZATION))
 537     cl_optimization_stream_in (&bp, TREE_OPTIMIZATION (expr));
 538
 539   if (CODE_CONTAINS_STRUCT (code, TS_BINFO))
 540     {
 541       unsigned HOST_WIDE_INT length = bp_unpack_var_len_unsigned (&bp);
 542       if (length > 0)
 543         vec_safe_grow (BINFO_BASE_ACCESSES (expr), length);
 544     }
 545
 546   if (CODE_CONTAINS_STRUCT (code, TS_CONSTRUCTOR))
 547     {
 548       unsigned HOST_WIDE_INT length = bp_unpack_var_len_unsigned (&bp);
 549       if (length > 0)
 550         vec_safe_grow (CONSTRUCTOR_ELTS (expr), length);
 551     }
 552
 553 #ifndef ACCEL_COMPILER
 554   if (CODE_CONTAINS_STRUCT (code, TS_TARGET_OPTION))
 555     cl_target_option_stream_in (data_in, &bp, TREE_TARGET_OPTION (expr));
 556 #endif
 557
 558   if (code == OMP_CLAUSE)
 559     unpack_ts_omp_clause_value_fields (data_in, &bp, expr);
 560 }
 561
 562
 563 /* Materialize a new tree from input block IB using descriptors in
 564    DATA_IN.  The code for the new tree should match TAG.  Store in
 565    *IX_P the index into the reader cache where the new tree is stored.  */
 566
 567 tree
 568 streamer_alloc_tree (struct lto_input_block *ib, struct data_in *data_in,
 569                      enum LTO_tags tag)
 570 {
 571   enum tree_code code;
 572   tree result;
 573 #ifdef LTO_STREAMER_DEBUG
 574   HOST_WIDE_INT orig_address_in_writer;
 575 #endif
 576
 577   result = NULL_TREE;
 578
 579 #ifdef LTO_STREAMER_DEBUG
 580   /* Read the word representing the memory address for the tree
 581      as it was written by the writer.  This is useful when
 582      debugging differences between the writer and reader.  */
 583   orig_address_in_writer = streamer_read_hwi (ib);
 584   gcc_assert ((intptr_t) orig_address_in_writer == orig_address_in_writer);
 585 #endif
 586
 587   code = lto_tag_to_tree_code (tag);
 588
 589   /* We should never see an SSA_NAME tree.  Only the version numbers of
 590      SSA names are ever written out.  See input_ssa_names.  */
 591   gcc_assert (code != SSA_NAME);
 592
 593   /* Instantiate a new tree using the header data.  */
 594   if (CODE_CONTAINS_STRUCT (code, TS_STRING))
 595     result = streamer_read_string_cst (data_in, ib);
 596   else if (CODE_CONTAINS_STRUCT (code, TS_IDENTIFIER))
 597     result = input_identifier (data_in, ib);
 598   else if (CODE_CONTAINS_STRUCT (code, TS_VEC))
 599     {
 600       HOST_WIDE_INT len = streamer_read_hwi (ib);
 601       result = make_tree_vec (len);
 602     }
 603   else if (CODE_CONTAINS_STRUCT (code, TS_VECTOR))
 604     {
 605       HOST_WIDE_INT len = streamer_read_hwi (ib);
 606       result = make_vector (len);
 607     }
 608   else if (CODE_CONTAINS_STRUCT (code, TS_BINFO))
 609     {
 610       unsigned HOST_WIDE_INT len = streamer_read_uhwi (ib);
 611       result = make_tree_binfo (len);
 612     }
 613   else if (CODE_CONTAINS_STRUCT (code, TS_INT_CST))
 614     {
 615       unsigned HOST_WIDE_INT len = streamer_read_uhwi (ib);
 616       unsigned HOST_WIDE_INT ext_len = streamer_read_uhwi (ib);
 617       result = make_int_cst (len, ext_len);
 618     }
 619   else if (code == CALL_EXPR)
 620     {
 621       unsigned HOST_WIDE_INT nargs = streamer_read_uhwi (ib);
 622       return build_vl_exp (CALL_EXPR, nargs + 3);
 623     }
 624   else if (code == OMP_CLAUSE)
 625     {
 626       enum omp_clause_code subcode
 627         = (enum omp_clause_code) streamer_read_uhwi (ib);
 628       return build_omp_clause (UNKNOWN_LOCATION, subcode);
 629     }
 630   else
 631     {
 632       /* For all other nodes, materialize the tree with a raw
 633          make_node call.  */
 634       result = make_node (code);
 635     }
 636
 637 #ifdef LTO_STREAMER_DEBUG
 638   /* Store the original address of the tree as seen by the writer
 639      in RESULT's aux field.  This is useful when debugging streaming
 640      problems.  This way, a debugging session can be started on
 641      both writer and reader with a breakpoint using this address
 642      value in both.  */
 643   lto_orig_address_map (result, (intptr_t) orig_address_in_writer);
 644 #endif
 645
 646   return result;
 647 }
 648
 649
 650 /* Read all pointer fields in the TS_COMMON structure of EXPR from input
 651    block IB.  DATA_IN contains tables and descriptors for the
 652    file being read.  */
 653
 654
 655 static void
 656 lto_input_ts_common_tree_pointers (struct lto_input_block *ib,
 657                                    struct data_in *data_in, tree expr)
 658 {
 659   if (TREE_CODE (expr) != IDENTIFIER_NODE)
 660     TREE_TYPE (expr) = stream_read_tree (ib, data_in);
 661 }
 662
 663
 664 /* Read all pointer fields in the TS_VECTOR structure of EXPR from input
 665    block IB.  DATA_IN contains tables and descriptors for the
 666    file being read.  */
 667
 668 static void
 669 lto_input_ts_vector_tree_pointers (struct lto_input_block *ib,
 670                                    struct data_in *data_in, tree expr)
 671 {
 672   unsigned i;
 673   for (i = 0; i < VECTOR_CST_NELTS (expr); ++i)
 674     VECTOR_CST_ELT (expr, i) = stream_read_tree (ib, data_in);
 675 }
 676
 677
 678 /* Read all pointer fields in the TS_COMPLEX structure of EXPR from input
 679    block IB.  DATA_IN contains tables and descriptors for the
 680    file being read.  */
 681
 682 static void
 683 lto_input_ts_complex_tree_pointers (struct lto_input_block *ib,
 684                                     struct data_in *data_in, tree expr)
 685 {
 686   TREE_REALPART (expr) = stream_read_tree (ib, data_in);
 687   TREE_IMAGPART (expr) = stream_read_tree (ib, data_in);
 688 }
 689
 690
 691 /* Read all pointer fields in the TS_DECL_MINIMAL structure of EXPR
 692    from input block IB.  DATA_IN contains tables and descriptors for the
 693    file being read.  */
 694
 695 static void
 696 lto_input_ts_decl_minimal_tree_pointers (struct lto_input_block *ib,
 697                                          struct data_in *data_in, tree expr)
 698 {
 699   DECL_NAME (expr) = stream_read_tree (ib, data_in);
 700   DECL_CONTEXT (expr) = stream_read_tree (ib, data_in);
 701 }
 702
 703
 704 /* Read all pointer fields in the TS_DECL_COMMON structure of EXPR from
 705    input block IB.  DATA_IN contains tables and descriptors for the
 706    file being read.  */
 707
 708 static void
 709 lto_input_ts_decl_common_tree_pointers (struct lto_input_block *ib,
 710                                         struct data_in *data_in, tree expr)
 711 {
 712   DECL_SIZE (expr) = stream_read_tree (ib, data_in);
 713   DECL_SIZE_UNIT (expr) = stream_read_tree (ib, data_in);
 714   DECL_ATTRIBUTES (expr) = stream_read_tree (ib, data_in);
 715
 716   /* Do not stream DECL_ABSTRACT_ORIGIN.  We cannot handle debug information
 717      for early inlining so drop it on the floor instead of ICEing in
 718      dwarf2out.c.  */
 719
 720   if ((TREE_CODE (expr) == VAR_DECL
 721        || TREE_CODE (expr) == PARM_DECL)
 722       && DECL_HAS_VALUE_EXPR_P (expr))
 723     SET_DECL_VALUE_EXPR (expr, stream_read_tree (ib, data_in));
 724
 725   if (TREE_CODE (expr) == VAR_DECL)
 726     {
 727       tree dexpr = stream_read_tree (ib, data_in);
 728       if (dexpr)
 729         SET_DECL_DEBUG_EXPR (expr, dexpr);
 730     }
 731 }
 732
 733
 734 /* Read all pointer fields in the TS_DECL_NON_COMMON structure of
 735    EXPR from input block IB.  DATA_IN contains tables and descriptors for the
 736    file being read.  */
 737
 738 static void
 739 lto_input_ts_decl_non_common_tree_pointers (struct lto_input_block *ib,
 740                                             struct data_in *data_in, tree expr)
 741 {
 742   if (TREE_CODE (expr) == TYPE_DECL)
 743     DECL_ORIGINAL_TYPE (expr) = stream_read_tree (ib, data_in);
 744 }
 745
 746
 747 /* Read all pointer fields in the TS_DECL_WITH_VIS structure of EXPR
 748    from input block IB.  DATA_IN contains tables and descriptors for the
 749    file being read.  */
 750
 751 static void
 752 lto_input_ts_decl_with_vis_tree_pointers (struct lto_input_block *ib,
 753                                           struct data_in *data_in, tree expr)
 754 {
 755   tree id;
 756
 757   id = stream_read_tree (ib, data_in);
 758   if (id)
 759     {
 760       gcc_assert (TREE_CODE (id) == IDENTIFIER_NODE);
 761       SET_DECL_ASSEMBLER_NAME (expr, id);
 762     }
 763 }
 764
 765
 766 /* Read all pointer fields in the TS_FIELD_DECL structure of EXPR from
 767    input block IB.  DATA_IN contains tables and descriptors for the
 768    file being read.  */
 769
 770 static void
 771 lto_input_ts_field_decl_tree_pointers (struct lto_input_block *ib,
 772                                        struct data_in *data_in, tree expr)
 773 {
 774   DECL_FIELD_OFFSET (expr) = stream_read_tree (ib, data_in);
 775   DECL_BIT_FIELD_TYPE (expr) = stream_read_tree (ib, data_in);
 776   DECL_BIT_FIELD_REPRESENTATIVE (expr) = stream_read_tree (ib, data_in);
 777   DECL_FIELD_BIT_OFFSET (expr) = stream_read_tree (ib, data_in);
 778   DECL_FCONTEXT (expr) = stream_read_tree (ib, data_in);
 779 }
 780
 781
 782 /* Read all pointer fields in the TS_FUNCTION_DECL structure of EXPR
 783    from input block IB.  DATA_IN contains tables and descriptors for the
 784    file being read.  */
 785
 786 static void
 787 lto_input_ts_function_decl_tree_pointers (struct lto_input_block *ib,
 788                                           struct data_in *data_in, tree expr)
 789 {
 790   DECL_VINDEX (expr) = stream_read_tree (ib, data_in);
 791   /* DECL_STRUCT_FUNCTION is loaded on demand by cgraph_get_body.  */
 792   DECL_FUNCTION_PERSONALITY (expr) = stream_read_tree (ib, data_in);
 793 #ifndef ACCEL_COMPILER
 794   DECL_FUNCTION_SPECIFIC_TARGET (expr) = stream_read_tree (ib, data_in);
 795 #endif
 796   DECL_FUNCTION_SPECIFIC_OPTIMIZATION (expr) = stream_read_tree (ib, data_in);
 797
 798   /* If the file contains a function with an EH personality set,
 799      then it was compiled with -fexceptions.  In that case, initialize
 800      the backend EH machinery.  */
 801   if (DECL_FUNCTION_PERSONALITY (expr))
 802     lto_init_eh ();
 803 }
 804
 805
 806 /* Read all pointer fields in the TS_TYPE_COMMON structure of EXPR from
 807    input block IB.  DATA_IN contains tables and descriptors for the file
 808    being read.  */
 809
 810 static void
 811 lto_input_ts_type_common_tree_pointers (struct lto_input_block *ib,
 812                                         struct data_in *data_in, tree expr)
 813 {
 814   TYPE_SIZE (expr) = stream_read_tree (ib, data_in);
 815   TYPE_SIZE_UNIT (expr) = stream_read_tree (ib, data_in);
 816   TYPE_ATTRIBUTES (expr) = stream_read_tree (ib, data_in);
 817   TYPE_NAME (expr) = stream_read_tree (ib, data_in);
 818   /* Do not stream TYPE_POINTER_TO or TYPE_REFERENCE_TO.  They will be
 819      reconstructed during fixup.  */
 820   /* Do not stream TYPE_NEXT_VARIANT, we reconstruct the variant lists
 821      during fixup.  */
 822   TYPE_MAIN_VARIANT (expr) = stream_read_tree (ib, data_in);
 823   TYPE_CONTEXT (expr) = stream_read_tree (ib, data_in);
 824   /* TYPE_CANONICAL gets re-computed during type merging.  */
 825   TYPE_CANONICAL (expr) = NULL_TREE;
 826   TYPE_STUB_DECL (expr) = stream_read_tree (ib, data_in);
 827 }
 828
 829 /* Read all pointer fields in the TS_TYPE_NON_COMMON structure of EXPR
 830    from input block IB.  DATA_IN contains tables and descriptors for the
 831    file being read.  */
 832
 833 static void
 834 lto_input_ts_type_non_common_tree_pointers (struct lto_input_block *ib,
 835                                             struct data_in *data_in,
 836                                             tree expr)
 837 {
 838   if (TREE_CODE (expr) == ENUMERAL_TYPE)
 839     TYPE_VALUES (expr) = stream_read_tree (ib, data_in);
 840   else if (TREE_CODE (expr) == ARRAY_TYPE)
 841     TYPE_DOMAIN (expr) = stream_read_tree (ib, data_in);
 842   else if (RECORD_OR_UNION_TYPE_P (expr))
 843     TYPE_FIELDS (expr) = streamer_read_chain (ib, data_in);
 844   else if (TREE_CODE (expr) == FUNCTION_TYPE
 845            || TREE_CODE (expr) == METHOD_TYPE)
 846     TYPE_ARG_TYPES (expr) = stream_read_tree (ib, data_in);
 847
 848   if (!POINTER_TYPE_P (expr))
 849     TYPE_MINVAL (expr) = stream_read_tree (ib, data_in);
 850   TYPE_MAXVAL (expr) = stream_read_tree (ib, data_in);
 851   if (RECORD_OR_UNION_TYPE_P (expr))
 852     TYPE_BINFO (expr) = stream_read_tree (ib, data_in);
 853 }
 854
 855
 856 /* Read all pointer fields in the TS_LIST structure of EXPR from input
 857    block IB.  DATA_IN contains tables and descriptors for the
 858    file being read.  */
 859
 860 static void
 861 lto_input_ts_list_tree_pointers (struct lto_input_block *ib,
 862                                  struct data_in *data_in, tree expr)
 863 {
 864   TREE_PURPOSE (expr) = stream_read_tree (ib, data_in);
 865   TREE_VALUE (expr) = stream_read_tree (ib, data_in);
 866   TREE_CHAIN (expr) = stream_read_tree (ib, data_in);
 867 }
 868
 869
 870 /* Read all pointer fields in the TS_VEC structure of EXPR from input
 871    block IB.  DATA_IN contains tables and descriptors for the
 872    file being read.  */
 873
 874 static void
 875 lto_input_ts_vec_tree_pointers (struct lto_input_block *ib,
 876                                 struct data_in *data_in, tree expr)
 877 {
 878   int i;
 879
 880   /* Note that TREE_VEC_LENGTH was read by streamer_alloc_tree to
 881      instantiate EXPR.  */
 882   for (i = 0; i < TREE_VEC_LENGTH (expr); i++)
 883     TREE_VEC_ELT (expr, i) = stream_read_tree (ib, data_in);
 884 }
 885
 886
 887 /* Read all pointer fields in the TS_EXP structure of EXPR from input
 888    block IB.  DATA_IN contains tables and descriptors for the
 889    file being read.  */
 890
 891
 892 static void
 893 lto_input_ts_exp_tree_pointers (struct lto_input_block *ib,
 894                                 struct data_in *data_in, tree expr)
 895 {
 896   int i;
 897
 898   for (i = 0; i < TREE_OPERAND_LENGTH (expr); i++)
 899     TREE_OPERAND (expr, i) = stream_read_tree (ib, data_in);
 900
 901   TREE_SET_BLOCK (expr, stream_read_tree (ib, data_in));
 902 }
 903
 904
 905 /* Read all pointer fields in the TS_BLOCK structure of EXPR from input
 906    block IB.  DATA_IN contains tables and descriptors for the
 907    file being read.  */
 908
 909 static void
 910 lto_input_ts_block_tree_pointers (struct lto_input_block *ib,
 911                                   struct data_in *data_in, tree expr)
 912 {
 913   BLOCK_VARS (expr) = streamer_read_chain (ib, data_in);
 914
 915   BLOCK_SUPERCONTEXT (expr) = stream_read_tree (ib, data_in);
 916
 917   /* Stream BLOCK_ABSTRACT_ORIGIN and BLOCK_SOURCE_LOCATION for
 918      the limited cases we can handle - those that represent inlined
 919      function scopes.  For the rest them on the floor instead of ICEing in
 920      dwarf2out.c.  */
 921   BLOCK_ABSTRACT_ORIGIN (expr) = stream_read_tree (ib, data_in);
 922   /* Do not stream BLOCK_NONLOCALIZED_VARS.  We cannot handle debug information
 923      for early inlined BLOCKs so drop it on the floor instead of ICEing in
 924      dwarf2out.c.  */
 925
 926   /* BLOCK_FRAGMENT_ORIGIN and BLOCK_FRAGMENT_CHAIN is not live at LTO
 927      streaming time.  */
 928
 929   /* We re-compute BLOCK_SUBBLOCKS of our parent here instead
 930      of streaming it.  For non-BLOCK BLOCK_SUPERCONTEXTs we still
 931      stream the child relationship explicitly.  */
 932   if (BLOCK_SUPERCONTEXT (expr)
 933       && TREE_CODE (BLOCK_SUPERCONTEXT (expr)) == BLOCK)
 934     {
 935       BLOCK_CHAIN (expr) = BLOCK_SUBBLOCKS (BLOCK_SUPERCONTEXT (expr));
 936       BLOCK_SUBBLOCKS (BLOCK_SUPERCONTEXT (expr)) = expr;
 937     }
 938
 939   /* The global block is rooted at the TU decl.  Hook it here to
 940      avoid the need to stream in this block during WPA time.  */
 941   else if (BLOCK_SUPERCONTEXT (expr)
 942            && TREE_CODE (BLOCK_SUPERCONTEXT (expr)) == TRANSLATION_UNIT_DECL)
 943     DECL_INITIAL (BLOCK_SUPERCONTEXT (expr)) = expr;
 944
 945   /* The function-level block is connected at the time we read in
 946      function bodies for the same reason.  */
 947 }
 948
 949
 950 /* Read all pointer fields in the TS_BINFO structure of EXPR from input
 951    block IB.  DATA_IN contains tables and descriptors for the
 952    file being read.  */
 953
 954 static void
 955 lto_input_ts_binfo_tree_pointers (struct lto_input_block *ib,
 956                                   struct data_in *data_in, tree expr)
 957 {
 958   unsigned i;
 959   tree t;
 960
 961   /* Note that the number of slots in EXPR was read in
 962      streamer_alloc_tree when instantiating EXPR.  However, the
 963      vector is empty so we cannot rely on vec::length to know how many
 964      elements to read.  So, this list is emitted as a 0-terminated
 965      list on the writer side.  */
 966   do
 967     {
 968       t = stream_read_tree (ib, data_in);
 969       if (t)
 970         BINFO_BASE_BINFOS (expr)->quick_push (t);
 971     }
 972   while (t);
 973
 974   BINFO_OFFSET (expr) = stream_read_tree (ib, data_in);
 975   BINFO_VTABLE (expr) = stream_read_tree (ib, data_in);
 976   BINFO_VPTR_FIELD (expr) = stream_read_tree (ib, data_in);
 977
 978   /* The vector of BINFO_BASE_ACCESSES is pre-allocated during
 979      unpacking the bitfield section.  */
 980   for (i = 0; i < vec_safe_length (BINFO_BASE_ACCESSES (expr)); i++)
 981     {
 982       tree a = stream_read_tree (ib, data_in);
 983       (*BINFO_BASE_ACCESSES (expr))[i] = a;
 984     }
 985   /* Do not walk BINFO_INHERITANCE_CHAIN, BINFO_SUBVTT_INDEX
 986      and BINFO_VPTR_INDEX; these are used by C++ FE only.  */
 987 }
 988
 989
 990 /* Read all pointer fields in the TS_CONSTRUCTOR structure of EXPR from
 991    input block IB.  DATA_IN contains tables and descriptors for the
 992    file being read.  */
 993
 994 static void
 995 lto_input_ts_constructor_tree_pointers (struct lto_input_block *ib,
 996                                         struct data_in *data_in, tree expr)
 997 {
 998   unsigned i;
 999
1000   for (i = 0; i < CONSTRUCTOR_NELTS (expr); i++)
1001     {
1002       constructor_elt e;
1003       e.index = stream_read_tree (ib, data_in);
1004       e.value = stream_read_tree (ib, data_in);
1005       (*CONSTRUCTOR_ELTS (expr))[i] = e;
1006     }
1007 }
1008
1009
1010 /* Read all pointer fields in the TS_OMP_CLAUSE structure of EXPR from
1011    input block IB.  DATA_IN contains tables and descriptors for the
1012    file being read.  */
1013
1014 static void
1015 lto_input_ts_omp_clause_tree_pointers (struct lto_input_block *ib,
1016                                        struct data_in *data_in, tree expr)
1017 {
1018   int i;
1019
1020   for (i = 0; i < omp_clause_num_ops[OMP_CLAUSE_CODE (expr)]; i++)
1021     OMP_CLAUSE_OPERAND (expr, i) = stream_read_tree (ib, data_in);
1022   OMP_CLAUSE_CHAIN (expr) = stream_read_tree (ib, data_in);
1023 }
1024
1025
1026 /* Read all pointer fields in EXPR from input block IB.  DATA_IN
1027    contains tables and descriptors for the file being read.  */
1028
1029 void
1030 streamer_read_tree_body (struct lto_input_block *ib, struct data_in *data_in,
1031                          tree expr)
1032 {
1033   enum tree_code code;
1034
1035   code = TREE_CODE (expr);
1036
1037   if (CODE_CONTAINS_STRUCT (code, TS_TYPED))
1038     lto_input_ts_common_tree_pointers (ib, data_in, expr);
1039
1040   if (CODE_CONTAINS_STRUCT (code, TS_VECTOR))
1041     lto_input_ts_vector_tree_pointers (ib, data_in, expr);
1042
1043   if (CODE_CONTAINS_STRUCT (code, TS_COMPLEX))
1044     lto_input_ts_complex_tree_pointers (ib, data_in, expr);
1045
1046   if (CODE_CONTAINS_STRUCT (code, TS_DECL_MINIMAL))
1047     lto_input_ts_decl_minimal_tree_pointers (ib, data_in, expr);
1048
1049   if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
1050     lto_input_ts_decl_common_tree_pointers (ib, data_in, expr);
1051
1052   if (CODE_CONTAINS_STRUCT (code, TS_DECL_NON_COMMON))
1053     lto_input_ts_decl_non_common_tree_pointers (ib, data_in, expr);
1054
1055   if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS))
1056     lto_input_ts_decl_with_vis_tree_pointers (ib, data_in, expr);
1057
1058   if (CODE_CONTAINS_STRUCT (code, TS_FIELD_DECL))
1059     lto_input_ts_field_decl_tree_pointers (ib, data_in, expr);
1060
1061   if (CODE_CONTAINS_STRUCT (code, TS_FUNCTION_DECL))
1062     lto_input_ts_function_decl_tree_pointers (ib, data_in, expr);
1063
1064   if (CODE_CONTAINS_STRUCT (code, TS_TYPE_COMMON))
1065     lto_input_ts_type_common_tree_pointers (ib, data_in, expr);
1066
1067   if (CODE_CONTAINS_STRUCT (code, TS_TYPE_NON_COMMON))
1068     lto_input_ts_type_non_common_tree_pointers (ib, data_in, expr);
1069
1070   if (CODE_CONTAINS_STRUCT (code, TS_LIST))
1071     lto_input_ts_list_tree_pointers (ib, data_in, expr);
1072
1073   if (CODE_CONTAINS_STRUCT (code, TS_VEC))
1074     lto_input_ts_vec_tree_pointers (ib, data_in, expr);
1075
1076   if (CODE_CONTAINS_STRUCT (code, TS_EXP))
1077     lto_input_ts_exp_tree_pointers (ib, data_in, expr);
1078
1079   if (CODE_CONTAINS_STRUCT (code, TS_BLOCK))
1080     lto_input_ts_block_tree_pointers (ib, data_in, expr);
1081
1082   if (CODE_CONTAINS_STRUCT (code, TS_BINFO))
1083     lto_input_ts_binfo_tree_pointers (ib, data_in, expr);
1084
1085   if (CODE_CONTAINS_STRUCT (code, TS_CONSTRUCTOR))
1086     lto_input_ts_constructor_tree_pointers (ib, data_in, expr);
1087
1088   if (code == OMP_CLAUSE)
1089     lto_input_ts_omp_clause_tree_pointers (ib, data_in, expr);
1090 }
1091
1092
1093 /* Read an index IX from input block IB and return the tree node at
1094    DATA_IN->FILE_DATA->GLOBALS_INDEX[IX].  */
1095
1096 tree
1097 streamer_get_pickled_tree (struct lto_input_block *ib, struct data_in *data_in)
1098 {
1099   unsigned HOST_WIDE_INT ix;
1100   tree result;
1101   enum LTO_tags expected_tag;
1102
1103   ix = streamer_read_uhwi (ib);
1104   expected_tag = streamer_read_enum (ib, LTO_tags, LTO_NUM_TAGS);
1105
1106   result = streamer_tree_cache_get_tree (data_in->reader_cache, ix);
1107   gcc_assert (result
1108               && TREE_CODE (result) == lto_tag_to_tree_code (expected_tag));
1109
1110   return result;
1111 }
1112
1113
1114 /* Read a code and class from input block IB and return the
1115    corresponding builtin.  DATA_IN is as in stream_read_tree.  */
1116
1117 tree
1118 streamer_get_builtin_tree (struct lto_input_block *ib, struct data_in *data_in)
1119 {
1120   enum built_in_class fclass;
1121   enum built_in_function fcode;
1122   const char *asmname;
1123   tree result;
1124
1125   fclass = streamer_read_enum (ib, built_in_class, BUILT_IN_LAST);
1126   gcc_assert (fclass == BUILT_IN_NORMAL || fclass == BUILT_IN_MD);
1127
1128   fcode = (enum built_in_function) streamer_read_uhwi (ib);
1129
1130   if (fclass == BUILT_IN_NORMAL)
1131     {
1132       if (fcode >= END_BUILTINS)
1133         fatal_error (input_location,
1134                      "machine independent builtin code out of range");
1135       result = builtin_decl_explicit (fcode);
1136       if (!result
1137           && fcode > BEGIN_CHKP_BUILTINS
1138           && fcode < END_CHKP_BUILTINS)
1139         {
1140           fcode = (enum built_in_function) (fcode - BEGIN_CHKP_BUILTINS - 1);
1141           result = builtin_decl_explicit (fcode);
1142           result = chkp_maybe_clone_builtin_fndecl (result);
1143         }
1144       gcc_assert (result);
1145     }
1146   else if (fclass == BUILT_IN_MD)
1147     {
1148       result = targetm.builtin_decl (fcode, true);
1149       if (!result || result == error_mark_node)
1150         fatal_error (input_location, "target specific builtin not available");
1151     }
1152   else
1153     gcc_unreachable ();
1154
1155   asmname = streamer_read_string (data_in, ib);
1156   if (asmname)
1157     set_builtin_user_assembler_name (result, asmname);
1158
1159   streamer_tree_cache_append (data_in->reader_cache, result, 0);
1160
1161   return result;
1162 }