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 "backend.h"
  26 #include "target.h"
  27 #include "tree.h"
  28 #include "gimple.h"
  29 #include "stringpool.h"
  30 #include "tree-streamer.h"
  31 #include "cgraph.h"
  32 #include "builtins.h"
  33 #include "ipa-chkp.h"
  34 #include "gomp-constants.h"
  35
  36
  37 /* Read a STRING_CST from the string table in DATA_IN using input
  38    block IB.  */
  39
  40 tree
  41 streamer_read_string_cst (struct data_in *data_in, struct lto_input_block *ib)
  42 {
  43   unsigned int len;
  44   const char * ptr;
  45
  46   ptr = streamer_read_indexed_string (data_in, ib, &len);
  47   if (!ptr)
  48     return NULL;
  49   return build_string (len, ptr);
  50 }
  51
  52
  53 /* Read an IDENTIFIER from the string table in DATA_IN using input
  54    block IB.  */
  55
  56 static tree
  57 input_identifier (struct data_in *data_in, struct lto_input_block *ib)
  58 {
  59   unsigned int len;
  60   const char *ptr;
  61
  62   ptr = streamer_read_indexed_string (data_in, ib, &len);
  63   if (!ptr)
  64     return NULL;
  65   return get_identifier_with_length (ptr, len);
  66 }
  67
  68
  69 /* Read a chain of tree nodes from input block IB. DATA_IN contains
  70    tables and descriptors for the file being read.  */
  71
  72 tree
  73 streamer_read_chain (struct lto_input_block *ib, struct data_in *data_in)
  74 {
  75   tree first, prev, curr;
  76
  77   /* The chain is written as NULL terminated list of trees.  */
  78   first = prev = NULL_TREE;
  79   do
  80     {
  81       curr = stream_read_tree (ib, data_in);
  82       if (prev)
  83         TREE_CHAIN (prev) = curr;
  84       else
  85         first = curr;
  86
  87       prev = curr;
  88     }
  89   while (curr);
  90
  91   return first;
  92 }
  93
  94
  95 /* Unpack all the non-pointer fields of the TS_BASE structure of
  96    expression EXPR from bitpack BP.  */
  97
  98 static inline void
  99 unpack_ts_base_value_fields (struct bitpack_d *bp, tree expr)
 100 {
 101   /* Note that the code for EXPR has already been unpacked to create EXPR in
 102      streamer_alloc_tree.  */
 103   if (!TYPE_P (expr))
 104     {
 105       TREE_SIDE_EFFECTS (expr) = (unsigned) bp_unpack_value (bp, 1);
 106       TREE_CONSTANT (expr) = (unsigned) bp_unpack_value (bp, 1);
 107       TREE_READONLY (expr) = (unsigned) bp_unpack_value (bp, 1);
 108
 109       /* TREE_PUBLIC is used on types to indicate that the type
 110          has a TYPE_CACHED_VALUES vector.  This is not streamed out,
 111          so we skip it here.  */
 112       TREE_PUBLIC (expr) = (unsigned) bp_unpack_value (bp, 1);
 113     }
 114   else
 115     bp_unpack_value (bp, 4);
 116   TREE_ADDRESSABLE (expr) = (unsigned) bp_unpack_value (bp, 1);
 117   TREE_THIS_VOLATILE (expr) = (unsigned) bp_unpack_value (bp, 1);
 118   if (DECL_P (expr))
 119     DECL_UNSIGNED (expr) = (unsigned) bp_unpack_value (bp, 1);
 120   else if (TYPE_P (expr))
 121     TYPE_UNSIGNED (expr) = (unsigned) bp_unpack_value (bp, 1);
 122   else
 123     bp_unpack_value (bp, 1);
 124   TREE_ASM_WRITTEN (expr) = (unsigned) bp_unpack_value (bp, 1);
 125   if (TYPE_P (expr))
 126     TYPE_ARTIFICIAL (expr) = (unsigned) bp_unpack_value (bp, 1);
 127   else
 128     TREE_NO_WARNING (expr) = (unsigned) bp_unpack_value (bp, 1);
 129   TREE_NOTHROW (expr) = (unsigned) bp_unpack_value (bp, 1);
 130   TREE_STATIC (expr) = (unsigned) bp_unpack_value (bp, 1);
 131   if (TREE_CODE (expr) != TREE_BINFO)
 132     TREE_PRIVATE (expr) = (unsigned) bp_unpack_value (bp, 1);
 133   else
 134     bp_unpack_value (bp, 1);
 135   TREE_PROTECTED (expr) = (unsigned) bp_unpack_value (bp, 1);
 136   TREE_DEPRECATED (expr) = (unsigned) bp_unpack_value (bp, 1);
 137   if (TYPE_P (expr))
 138     {
 139       if (AGGREGATE_TYPE_P (expr))
 140         TYPE_REVERSE_STORAGE_ORDER (expr) = (unsigned) bp_unpack_value (bp, 1);
 141       else
 142         TYPE_SATURATING (expr) = (unsigned) bp_unpack_value (bp, 1);
 143       TYPE_ADDR_SPACE (expr) = (unsigned) bp_unpack_value (bp, 8);
 144     }
 145   else if (TREE_CODE (expr) == BIT_FIELD_REF || TREE_CODE (expr) == MEM_REF)
 146     {
 147       REF_REVERSE_STORAGE_ORDER (expr) = (unsigned) bp_unpack_value (bp, 1);
 148       bp_unpack_value (bp, 8);
 149     }
 150   else if (TREE_CODE (expr) == SSA_NAME)
 151     {
 152       SSA_NAME_IS_DEFAULT_DEF (expr) = (unsigned) bp_unpack_value (bp, 1);
 153       bp_unpack_value (bp, 8);
 154     }
 155   else
 156     bp_unpack_value (bp, 9);
 157 }
 158
 159
 160 /* Unpack all the non-pointer fields of the TS_INT_CST structure of
 161    expression EXPR from bitpack BP.  */
 162
 163 static void
 164 unpack_ts_int_cst_value_fields (struct bitpack_d *bp, tree expr)
 165 {
 166   int i;
 167   for (i = 0; i < TREE_INT_CST_EXT_NUNITS (expr); i++)
 168     TREE_INT_CST_ELT (expr, i) = bp_unpack_var_len_int (bp);
 169 }
 170
 171
 172 /* Unpack all the non-pointer fields of the TS_REAL_CST structure of
 173    expression EXPR from bitpack BP.  */
 174
 175 static void
 176 unpack_ts_real_cst_value_fields (struct bitpack_d *bp, tree expr)
 177 {
 178   unsigned i;
 179   REAL_VALUE_TYPE r;
 180   REAL_VALUE_TYPE *rp;
 181
 182   /* Clear all bits of the real value type so that we can later do
 183      bitwise comparisons to see if two values are the same.  */
 184   memset (&r, 0, sizeof r);
 185   r.cl = (unsigned) bp_unpack_value (bp, 2);
 186   r.decimal = (unsigned) bp_unpack_value (bp, 1);
 187   r.sign = (unsigned) bp_unpack_value (bp, 1);
 188   r.signalling = (unsigned) bp_unpack_value (bp, 1);
 189   r.canonical = (unsigned) bp_unpack_value (bp, 1);
 190   r.uexp = (unsigned) bp_unpack_value (bp, EXP_BITS);
 191   for (i = 0; i < SIGSZ; i++)
 192     r.sig[i] = (unsigned long) bp_unpack_value (bp, HOST_BITS_PER_LONG);
 193
 194   rp = ggc_alloc<real_value> ();
 195   memcpy (rp, &r, sizeof (REAL_VALUE_TYPE));
 196   TREE_REAL_CST_PTR (expr) = rp;
 197 }
 198
 199
 200 /* Unpack all the non-pointer fields of the TS_FIXED_CST structure of
 201    expression EXPR from bitpack BP.  */
 202
 203 static void
 204 unpack_ts_fixed_cst_value_fields (struct bitpack_d *bp, tree expr)
 205 {
 206   FIXED_VALUE_TYPE *fp = ggc_alloc<fixed_value> ();
 207   fp->mode = bp_unpack_machine_mode (bp);
 208   fp->data.low = bp_unpack_var_len_int (bp);
 209   fp->data.high = bp_unpack_var_len_int (bp);
 210   TREE_FIXED_CST_PTR (expr) = fp;
 211 }
 212
 213 /* Unpack all the non-pointer fields of the TS_DECL_COMMON structure
 214    of expression EXPR from bitpack BP.  */
 215
 216 static void
 217 unpack_ts_decl_common_value_fields (struct bitpack_d *bp, tree expr)
 218 {
 219   DECL_MODE (expr) = bp_unpack_machine_mode (bp);
 220   DECL_NONLOCAL (expr) = (unsigned) bp_unpack_value (bp, 1);
 221   DECL_VIRTUAL_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 222   DECL_IGNORED_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 223   DECL_ABSTRACT_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 224   DECL_ARTIFICIAL (expr) = (unsigned) bp_unpack_value (bp, 1);
 225   DECL_USER_ALIGN (expr) = (unsigned) bp_unpack_value (bp, 1);
 226   DECL_PRESERVE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 227   DECL_EXTERNAL (expr) = (unsigned) bp_unpack_value (bp, 1);
 228   DECL_GIMPLE_REG_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 229   DECL_ALIGN (expr) = (unsigned) bp_unpack_var_len_unsigned (bp);
 230 #ifdef ACCEL_COMPILER
 231   if (DECL_ALIGN (expr) > targetm.absolute_biggest_alignment)
 232     DECL_ALIGN (expr) = targetm.absolute_biggest_alignment;
 233 #endif
 234   if (TREE_CODE (expr) == LABEL_DECL)
 235     {
 236       EH_LANDING_PAD_NR (expr) = (int) bp_unpack_var_len_unsigned (bp);
 237
 238       /* Always assume an initial value of -1 for LABEL_DECL_UID to
 239          force gimple_set_bb to recreate label_to_block_map.  */
 240       LABEL_DECL_UID (expr) = -1;
 241     }
 242
 243   if (TREE_CODE (expr) == FIELD_DECL)
 244     {
 245       DECL_PACKED (expr) = (unsigned) bp_unpack_value (bp, 1);
 246       DECL_NONADDRESSABLE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 247       expr->decl_common.off_align = bp_unpack_value (bp, 8);
 248     }
 249
 250   if (TREE_CODE (expr) == VAR_DECL)
 251     {
 252       DECL_HAS_DEBUG_EXPR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 253       DECL_NONLOCAL_FRAME (expr) = (unsigned) bp_unpack_value (bp, 1);
 254     }
 255
 256   if (TREE_CODE (expr) == RESULT_DECL
 257       || TREE_CODE (expr) == PARM_DECL
 258       || TREE_CODE (expr) == VAR_DECL)
 259     {
 260       DECL_BY_REFERENCE (expr) = (unsigned) bp_unpack_value (bp, 1);
 261       if (TREE_CODE (expr) == VAR_DECL
 262           || TREE_CODE (expr) == PARM_DECL)
 263         DECL_HAS_VALUE_EXPR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 264     }
 265 }
 266
 267
 268 /* Unpack all the non-pointer fields of the TS_DECL_WRTL structure
 269    of expression EXPR from bitpack BP.  */
 270
 271 static void
 272 unpack_ts_decl_wrtl_value_fields (struct bitpack_d *bp, tree expr)
 273 {
 274   DECL_REGISTER (expr) = (unsigned) bp_unpack_value (bp, 1);
 275 }
 276
 277
 278 /* Unpack all the non-pointer fields of the TS_DECL_WITH_VIS structure
 279    of expression EXPR from bitpack BP.  */
 280
 281 static void
 282 unpack_ts_decl_with_vis_value_fields (struct bitpack_d *bp, tree expr)
 283 {
 284   DECL_COMMON (expr) = (unsigned) bp_unpack_value (bp, 1);
 285   DECL_DLLIMPORT_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 286   DECL_WEAK (expr) = (unsigned) bp_unpack_value (bp, 1);
 287   DECL_SEEN_IN_BIND_EXPR_P (expr) = (unsigned) bp_unpack_value (bp,  1);
 288   DECL_COMDAT (expr) = (unsigned) bp_unpack_value (bp,  1);
 289   DECL_VISIBILITY (expr) = (enum symbol_visibility) bp_unpack_value (bp,  2);
 290   DECL_VISIBILITY_SPECIFIED (expr) = (unsigned) bp_unpack_value (bp,  1);
 291
 292   if (TREE_CODE (expr) == VAR_DECL)
 293     {
 294       DECL_HARD_REGISTER (expr) = (unsigned) bp_unpack_value (bp, 1);
 295       DECL_IN_CONSTANT_POOL (expr) = (unsigned) bp_unpack_value (bp, 1);
 296     }
 297
 298   if (TREE_CODE (expr) == FUNCTION_DECL)
 299     {
 300       DECL_FINAL_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 301       DECL_CXX_CONSTRUCTOR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 302       DECL_CXX_DESTRUCTOR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 303     }
 304 }
 305
 306
 307 /* Unpack all the non-pointer fields of the TS_FUNCTION_DECL structure
 308    of expression EXPR from bitpack BP.  */
 309
 310 static void
 311 unpack_ts_function_decl_value_fields (struct bitpack_d *bp, tree expr)
 312 {
 313   DECL_BUILT_IN_CLASS (expr) = bp_unpack_enum (bp, built_in_class,
 314                                                BUILT_IN_LAST);
 315   DECL_STATIC_CONSTRUCTOR (expr) = (unsigned) bp_unpack_value (bp, 1);
 316   DECL_STATIC_DESTRUCTOR (expr) = (unsigned) bp_unpack_value (bp, 1);
 317   DECL_UNINLINABLE (expr) = (unsigned) bp_unpack_value (bp, 1);
 318   DECL_POSSIBLY_INLINED (expr) = (unsigned) bp_unpack_value (bp, 1);
 319   DECL_IS_NOVOPS (expr) = (unsigned) bp_unpack_value (bp, 1);
 320   DECL_IS_RETURNS_TWICE (expr) = (unsigned) bp_unpack_value (bp, 1);
 321   DECL_IS_MALLOC (expr) = (unsigned) bp_unpack_value (bp, 1);
 322   DECL_IS_OPERATOR_NEW (expr) = (unsigned) bp_unpack_value (bp, 1);
 323   DECL_DECLARED_INLINE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 324   DECL_STATIC_CHAIN (expr) = (unsigned) bp_unpack_value (bp, 1);
 325   DECL_NO_INLINE_WARNING_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 326   DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT (expr)
 327                         = (unsigned) bp_unpack_value (bp, 1);
 328   DECL_NO_LIMIT_STACK (expr) = (unsigned) bp_unpack_value (bp, 1);
 329   DECL_DISREGARD_INLINE_LIMITS (expr) = (unsigned) bp_unpack_value (bp, 1);
 330   DECL_PURE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 331   DECL_LOOPING_CONST_OR_PURE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 332   if (DECL_BUILT_IN_CLASS (expr) != NOT_BUILT_IN)
 333     {
 334       DECL_FUNCTION_CODE (expr) = (enum built_in_function) bp_unpack_value (bp,
 335                                                                             12);
 336       if (DECL_BUILT_IN_CLASS (expr) == BUILT_IN_NORMAL
 337           && DECL_FUNCTION_CODE (expr) >= END_BUILTINS)
 338         fatal_error (input_location,
 339                      "machine independent builtin code out of range");
 340       else if (DECL_BUILT_IN_CLASS (expr) == BUILT_IN_MD)
 341         {
 342           tree result = targetm.builtin_decl (DECL_FUNCTION_CODE (expr), true);
 343           if (!result || result == error_mark_node)
 344             fatal_error (input_location,
 345                          "target specific builtin not available");
 346         }
 347     }
 348 }
 349
 350
 351 /* Unpack all the non-pointer fields of the TS_TYPE_COMMON structure
 352    of expression EXPR from bitpack BP.  */
 353
 354 static void
 355 unpack_ts_type_common_value_fields (struct bitpack_d *bp, tree expr)
 356 {
 357   machine_mode mode;
 358
 359   mode = bp_unpack_machine_mode (bp);
 360   SET_TYPE_MODE (expr, mode);
 361   TYPE_STRING_FLAG (expr) = (unsigned) bp_unpack_value (bp, 1);
 362   /* TYPE_NO_FORCE_BLK is private to stor-layout and need
 363      no streaming.  */
 364   TYPE_NEEDS_CONSTRUCTING (expr) = (unsigned) bp_unpack_value (bp, 1);
 365   if (RECORD_OR_UNION_TYPE_P (expr))
 366     {
 367       TYPE_TRANSPARENT_AGGR (expr) = (unsigned) bp_unpack_value (bp, 1);
 368       TYPE_FINAL_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 369     }
 370   else if (TREE_CODE (expr) == ARRAY_TYPE)
 371     TYPE_NONALIASED_COMPONENT (expr) = (unsigned) bp_unpack_value (bp, 1);
 372   TYPE_PACKED (expr) = (unsigned) bp_unpack_value (bp, 1);
 373   TYPE_RESTRICT (expr) = (unsigned) bp_unpack_value (bp, 1);
 374   TYPE_USER_ALIGN (expr) = (unsigned) bp_unpack_value (bp, 1);
 375   TYPE_READONLY (expr) = (unsigned) bp_unpack_value (bp, 1);
 376   TYPE_PRECISION (expr) = bp_unpack_var_len_unsigned (bp);
 377   TYPE_ALIGN (expr) = bp_unpack_var_len_unsigned (bp);
 378 #ifdef ACCEL_COMPILER
 379   if (TYPE_ALIGN (expr) > targetm.absolute_biggest_alignment)
 380     TYPE_ALIGN (expr) = targetm.absolute_biggest_alignment;
 381 #endif
 382   TYPE_ALIAS_SET (expr) = bp_unpack_var_len_int (bp);
 383 }
 384
 385
 386 /* Unpack all the non-pointer fields of the TS_BLOCK structure
 387    of expression EXPR from bitpack BP.  */
 388
 389 static void
 390 unpack_ts_block_value_fields (struct data_in *data_in,
 391                               struct bitpack_d *bp, tree expr)
 392 {
 393   BLOCK_ABSTRACT (expr) = (unsigned) bp_unpack_value (bp, 1);
 394   /* BLOCK_NUMBER is recomputed.  */
 395   stream_input_location (&BLOCK_SOURCE_LOCATION (expr), bp, data_in);
 396 }
 397
 398 /* Unpack all the non-pointer fields of the TS_TRANSLATION_UNIT_DECL
 399    structure of expression EXPR from bitpack BP.  */
 400
 401 static void
 402 unpack_ts_translation_unit_decl_value_fields (struct data_in *data_in,
 403                                               struct bitpack_d *bp, tree expr)
 404 {
 405   TRANSLATION_UNIT_LANGUAGE (expr) = xstrdup (bp_unpack_string (data_in, bp));
 406   vec_safe_push (all_translation_units, expr);
 407 }
 408
 409
 410 /* Unpack all the non-pointer fields of the TS_OMP_CLAUSE
 411    structure of expression EXPR from bitpack BP.  */
 412
 413 static void
 414 unpack_ts_omp_clause_value_fields (struct data_in *data_in,
 415                                    struct bitpack_d *bp, tree expr)
 416 {
 417   stream_input_location (&OMP_CLAUSE_LOCATION (expr), bp, data_in);
 418   switch (OMP_CLAUSE_CODE (expr))
 419     {
 420     case OMP_CLAUSE_DEFAULT:
 421       OMP_CLAUSE_DEFAULT_KIND (expr)
 422         = bp_unpack_enum (bp, omp_clause_default_kind,
 423                           OMP_CLAUSE_DEFAULT_LAST);
 424       break;
 425     case OMP_CLAUSE_SCHEDULE:
 426       OMP_CLAUSE_SCHEDULE_KIND (expr)
 427         = bp_unpack_enum (bp, omp_clause_schedule_kind,
 428                           OMP_CLAUSE_SCHEDULE_LAST);
 429       break;
 430     case OMP_CLAUSE_DEPEND:
 431       OMP_CLAUSE_DEPEND_KIND (expr)
 432         = bp_unpack_enum (bp, omp_clause_depend_kind, OMP_CLAUSE_DEPEND_LAST);
 433       break;
 434     case OMP_CLAUSE_MAP:
 435       OMP_CLAUSE_SET_MAP_KIND (expr, bp_unpack_enum (bp, gomp_map_kind,
 436                                                      GOMP_MAP_LAST));
 437       break;
 438     case OMP_CLAUSE_PROC_BIND:
 439       OMP_CLAUSE_PROC_BIND_KIND (expr)
 440         = bp_unpack_enum (bp, omp_clause_proc_bind_kind,
 441                           OMP_CLAUSE_PROC_BIND_LAST);
 442       break;
 443     case OMP_CLAUSE_REDUCTION:
 444       OMP_CLAUSE_REDUCTION_CODE (expr)
 445         = bp_unpack_enum (bp, tree_code, MAX_TREE_CODES);
 446       break;
 447     default:
 448       break;
 449     }
 450 }
 451
 452
 453 /* Read all the language-independent bitfield values for EXPR from IB.
 454    Return the partially unpacked bitpack so the caller can unpack any other
 455    bitfield values that the writer may have written.  */
 456
 457 void
 458 streamer_read_tree_bitfields (struct lto_input_block *ib,
 459                               struct data_in *data_in, tree expr)
 460 {
 461   enum tree_code code;
 462   struct bitpack_d bp;
 463
 464   /* Read the bitpack of non-pointer values from IB.  */
 465   bp = streamer_read_bitpack (ib);
 466
 467   /* The first word in BP contains the code of the tree that we
 468      are about to read.  */
 469   code = (enum tree_code) bp_unpack_value (&bp, 16);
 470   lto_tag_check (lto_tree_code_to_tag (code),
 471                  lto_tree_code_to_tag (TREE_CODE (expr)));
 472
 473   /* Note that all these functions are highly sensitive to changes in
 474      the types and sizes of each of the fields being packed.  */
 475   unpack_ts_base_value_fields (&bp, expr);
 476
 477   if (CODE_CONTAINS_STRUCT (code, TS_INT_CST))
 478     unpack_ts_int_cst_value_fields (&bp, expr);
 479
 480   if (CODE_CONTAINS_STRUCT (code, TS_REAL_CST))
 481     unpack_ts_real_cst_value_fields (&bp, expr);
 482
 483   if (CODE_CONTAINS_STRUCT (code, TS_FIXED_CST))
 484     unpack_ts_fixed_cst_value_fields (&bp, expr);
 485
 486   if (CODE_CONTAINS_STRUCT (code, TS_DECL_MINIMAL))
 487     stream_input_location (&DECL_SOURCE_LOCATION (expr), &bp, data_in);
 488
 489   if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
 490     unpack_ts_decl_common_value_fields (&bp, expr);
 491
 492   if (CODE_CONTAINS_STRUCT (code, TS_DECL_WRTL))
 493     unpack_ts_decl_wrtl_value_fields (&bp, expr);
 494
 495   if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS))
 496     unpack_ts_decl_with_vis_value_fields (&bp, expr);
 497
 498   if (CODE_CONTAINS_STRUCT (code, TS_FUNCTION_DECL))
 499     unpack_ts_function_decl_value_fields (&bp, expr);
 500
 501   if (CODE_CONTAINS_STRUCT (code, TS_TYPE_COMMON))
 502     unpack_ts_type_common_value_fields (&bp, expr);
 503
 504   if (CODE_CONTAINS_STRUCT (code, TS_EXP))
 505     {
 506       stream_input_location (&EXPR_CHECK (expr)->exp.locus, &bp, data_in);
 507       if (code == MEM_REF
 508           || code == TARGET_MEM_REF)
 509         {
 510           MR_DEPENDENCE_CLIQUE (expr)
 511             = (unsigned)bp_unpack_value (&bp, sizeof (short) * 8);
 512           if (MR_DEPENDENCE_CLIQUE (expr) != 0)
 513             MR_DEPENDENCE_BASE (expr)
 514               = (unsigned)bp_unpack_value (&bp, sizeof (short) * 8);
 515         }
 516     }
 517
 518   if (CODE_CONTAINS_STRUCT (code, TS_BLOCK))
 519     unpack_ts_block_value_fields (data_in, &bp, expr);
 520
 521   if (CODE_CONTAINS_STRUCT (code, TS_TRANSLATION_UNIT_DECL))
 522     unpack_ts_translation_unit_decl_value_fields (data_in, &bp, expr);
 523
 524   if (CODE_CONTAINS_STRUCT (code, TS_OPTIMIZATION))
 525     cl_optimization_stream_in (&bp, TREE_OPTIMIZATION (expr));
 526
 527   if (CODE_CONTAINS_STRUCT (code, TS_BINFO))
 528     {
 529       unsigned HOST_WIDE_INT length = bp_unpack_var_len_unsigned (&bp);
 530       if (length > 0)
 531         vec_safe_grow (BINFO_BASE_ACCESSES (expr), length);
 532     }
 533
 534   if (CODE_CONTAINS_STRUCT (code, TS_CONSTRUCTOR))
 535     {
 536       unsigned HOST_WIDE_INT length = bp_unpack_var_len_unsigned (&bp);
 537       if (length > 0)
 538         vec_safe_grow (CONSTRUCTOR_ELTS (expr), length);
 539     }
 540
 541 #ifndef ACCEL_COMPILER
 542   if (CODE_CONTAINS_STRUCT (code, TS_TARGET_OPTION))
 543     {
 544       cl_target_option_stream_in (data_in, &bp, TREE_TARGET_OPTION (expr));
 545       if (targetm.target_option.post_stream_in)
 546         targetm.target_option.post_stream_in (TREE_TARGET_OPTION (expr));
 547     }
 548 #endif
 549
 550   if (code == OMP_CLAUSE)
 551     unpack_ts_omp_clause_value_fields (data_in, &bp, expr);
 552 }
 553
 554
 555 /* Materialize a new tree from input block IB using descriptors in
 556    DATA_IN.  The code for the new tree should match TAG.  Store in
 557    *IX_P the index into the reader cache where the new tree is stored.  */
 558
 559 tree
 560 streamer_alloc_tree (struct lto_input_block *ib, struct data_in *data_in,
 561                      enum LTO_tags tag)
 562 {
 563   enum tree_code code;
 564   tree result;
 565 #ifdef LTO_STREAMER_DEBUG
 566   HOST_WIDE_INT orig_address_in_writer;
 567 #endif
 568
 569   result = NULL_TREE;
 570
 571 #ifdef LTO_STREAMER_DEBUG
 572   /* Read the word representing the memory address for the tree
 573      as it was written by the writer.  This is useful when
 574      debugging differences between the writer and reader.  */
 575   orig_address_in_writer = streamer_read_hwi (ib);
 576   gcc_assert ((intptr_t) orig_address_in_writer == orig_address_in_writer);
 577 #endif
 578
 579   code = lto_tag_to_tree_code (tag);
 580
 581   /* We should never see an SSA_NAME tree.  Only the version numbers of
 582      SSA names are ever written out.  See input_ssa_names.  */
 583   gcc_assert (code != SSA_NAME);
 584
 585   /* Instantiate a new tree using the header data.  */
 586   if (CODE_CONTAINS_STRUCT (code, TS_STRING))
 587     result = streamer_read_string_cst (data_in, ib);
 588   else if (CODE_CONTAINS_STRUCT (code, TS_IDENTIFIER))
 589     result = input_identifier (data_in, ib);
 590   else if (CODE_CONTAINS_STRUCT (code, TS_VEC))
 591     {
 592       HOST_WIDE_INT len = streamer_read_hwi (ib);
 593       result = make_tree_vec (len);
 594     }
 595   else if (CODE_CONTAINS_STRUCT (code, TS_VECTOR))
 596     {
 597       HOST_WIDE_INT len = streamer_read_hwi (ib);
 598       result = make_vector (len);
 599     }
 600   else if (CODE_CONTAINS_STRUCT (code, TS_BINFO))
 601     {
 602       unsigned HOST_WIDE_INT len = streamer_read_uhwi (ib);
 603       result = make_tree_binfo (len);
 604     }
 605   else if (CODE_CONTAINS_STRUCT (code, TS_INT_CST))
 606     {
 607       unsigned HOST_WIDE_INT len = streamer_read_uhwi (ib);
 608       unsigned HOST_WIDE_INT ext_len = streamer_read_uhwi (ib);
 609       result = make_int_cst (len, ext_len);
 610     }
 611   else if (code == CALL_EXPR)
 612     {
 613       unsigned HOST_WIDE_INT nargs = streamer_read_uhwi (ib);
 614       return build_vl_exp (CALL_EXPR, nargs + 3);
 615     }
 616   else if (code == OMP_CLAUSE)
 617     {
 618       enum omp_clause_code subcode
 619         = (enum omp_clause_code) streamer_read_uhwi (ib);
 620       return build_omp_clause (UNKNOWN_LOCATION, subcode);
 621     }
 622   else
 623     {
 624       /* For all other nodes, materialize the tree with a raw
 625          make_node call.  */
 626       result = make_node (code);
 627     }
 628
 629 #ifdef LTO_STREAMER_DEBUG
 630   /* Store the original address of the tree as seen by the writer
 631      in RESULT's aux field.  This is useful when debugging streaming
 632      problems.  This way, a debugging session can be started on
 633      both writer and reader with a breakpoint using this address
 634      value in both.  */
 635   lto_orig_address_map (result, (intptr_t) orig_address_in_writer);
 636 #endif
 637
 638   return result;
 639 }
 640
 641
 642 /* Read all pointer fields in the TS_COMMON structure of EXPR from input
 643    block IB.  DATA_IN contains tables and descriptors for the
 644    file being read.  */
 645
 646
 647 static void
 648 lto_input_ts_common_tree_pointers (struct lto_input_block *ib,
 649                                    struct data_in *data_in, tree expr)
 650 {
 651   if (TREE_CODE (expr) != IDENTIFIER_NODE)
 652     TREE_TYPE (expr) = stream_read_tree (ib, data_in);
 653 }
 654
 655
 656 /* Read all pointer fields in the TS_VECTOR structure of EXPR from input
 657    block IB.  DATA_IN contains tables and descriptors for the
 658    file being read.  */
 659
 660 static void
 661 lto_input_ts_vector_tree_pointers (struct lto_input_block *ib,
 662                                    struct data_in *data_in, tree expr)
 663 {
 664   unsigned i;
 665   for (i = 0; i < VECTOR_CST_NELTS (expr); ++i)
 666     VECTOR_CST_ELT (expr, i) = stream_read_tree (ib, data_in);
 667 }
 668
 669
 670 /* Read all pointer fields in the TS_COMPLEX structure of EXPR from input
 671    block IB.  DATA_IN contains tables and descriptors for the
 672    file being read.  */
 673
 674 static void
 675 lto_input_ts_complex_tree_pointers (struct lto_input_block *ib,
 676                                     struct data_in *data_in, tree expr)
 677 {
 678   TREE_REALPART (expr) = stream_read_tree (ib, data_in);
 679   TREE_IMAGPART (expr) = stream_read_tree (ib, data_in);
 680 }
 681
 682
 683 /* Read all pointer fields in the TS_DECL_MINIMAL structure of EXPR
 684    from input block IB.  DATA_IN contains tables and descriptors for the
 685    file being read.  */
 686
 687 static void
 688 lto_input_ts_decl_minimal_tree_pointers (struct lto_input_block *ib,
 689                                          struct data_in *data_in, tree expr)
 690 {
 691   DECL_NAME (expr) = stream_read_tree (ib, data_in);
 692   DECL_CONTEXT (expr) = stream_read_tree (ib, data_in);
 693 }
 694
 695
 696 /* Read all pointer fields in the TS_DECL_COMMON structure of EXPR from
 697    input block IB.  DATA_IN contains tables and descriptors for the
 698    file being read.  */
 699
 700 static void
 701 lto_input_ts_decl_common_tree_pointers (struct lto_input_block *ib,
 702                                         struct data_in *data_in, tree expr)
 703 {
 704   DECL_SIZE (expr) = stream_read_tree (ib, data_in);
 705   DECL_SIZE_UNIT (expr) = stream_read_tree (ib, data_in);
 706   DECL_ATTRIBUTES (expr) = stream_read_tree (ib, data_in);
 707
 708   /* Do not stream DECL_ABSTRACT_ORIGIN.  We cannot handle debug information
 709      for early inlining so drop it on the floor instead of ICEing in
 710      dwarf2out.c.  */
 711
 712   if ((TREE_CODE (expr) == VAR_DECL
 713        || TREE_CODE (expr) == PARM_DECL)
 714       && DECL_HAS_VALUE_EXPR_P (expr))
 715     SET_DECL_VALUE_EXPR (expr, stream_read_tree (ib, data_in));
 716
 717   if (TREE_CODE (expr) == VAR_DECL)
 718     {
 719       tree dexpr = stream_read_tree (ib, data_in);
 720       if (dexpr)
 721         SET_DECL_DEBUG_EXPR (expr, dexpr);
 722     }
 723 }
 724
 725
 726 /* Read all pointer fields in the TS_DECL_NON_COMMON structure of
 727    EXPR from input block IB.  DATA_IN contains tables and descriptors for the
 728    file being read.  */
 729
 730 static void
 731 lto_input_ts_decl_non_common_tree_pointers (struct lto_input_block *ib,
 732                                             struct data_in *data_in, tree expr)
 733 {
 734   if (TREE_CODE (expr) == TYPE_DECL)
 735     DECL_ORIGINAL_TYPE (expr) = stream_read_tree (ib, data_in);
 736 }
 737
 738
 739 /* Read all pointer fields in the TS_DECL_WITH_VIS structure of EXPR
 740    from input block IB.  DATA_IN contains tables and descriptors for the
 741    file being read.  */
 742
 743 static void
 744 lto_input_ts_decl_with_vis_tree_pointers (struct lto_input_block *ib,
 745                                           struct data_in *data_in, tree expr)
 746 {
 747   tree id;
 748
 749   id = stream_read_tree (ib, data_in);
 750   if (id)
 751     {
 752       gcc_assert (TREE_CODE (id) == IDENTIFIER_NODE);
 753       SET_DECL_ASSEMBLER_NAME (expr, id);
 754     }
 755 }
 756
 757
 758 /* Read all pointer fields in the TS_FIELD_DECL structure of EXPR from
 759    input block IB.  DATA_IN contains tables and descriptors for the
 760    file being read.  */
 761
 762 static void
 763 lto_input_ts_field_decl_tree_pointers (struct lto_input_block *ib,
 764                                        struct data_in *data_in, tree expr)
 765 {
 766   DECL_FIELD_OFFSET (expr) = stream_read_tree (ib, data_in);
 767   DECL_BIT_FIELD_TYPE (expr) = stream_read_tree (ib, data_in);
 768   DECL_BIT_FIELD_REPRESENTATIVE (expr) = stream_read_tree (ib, data_in);
 769   DECL_FIELD_BIT_OFFSET (expr) = stream_read_tree (ib, data_in);
 770   DECL_FCONTEXT (expr) = stream_read_tree (ib, data_in);
 771 }
 772
 773
 774 /* Read all pointer fields in the TS_FUNCTION_DECL structure of EXPR
 775    from input block IB.  DATA_IN contains tables and descriptors for the
 776    file being read.  */
 777
 778 static void
 779 lto_input_ts_function_decl_tree_pointers (struct lto_input_block *ib,
 780                                           struct data_in *data_in, tree expr)
 781 {
 782   DECL_VINDEX (expr) = stream_read_tree (ib, data_in);
 783   /* DECL_STRUCT_FUNCTION is loaded on demand by cgraph_get_body.  */
 784   DECL_FUNCTION_PERSONALITY (expr) = stream_read_tree (ib, data_in);
 785 #ifndef ACCEL_COMPILER
 786   DECL_FUNCTION_SPECIFIC_TARGET (expr) = stream_read_tree (ib, data_in);
 787 #endif
 788   DECL_FUNCTION_SPECIFIC_OPTIMIZATION (expr) = stream_read_tree (ib, data_in);
 789
 790   /* If the file contains a function with an EH personality set,
 791      then it was compiled with -fexceptions.  In that case, initialize
 792      the backend EH machinery.  */
 793   if (DECL_FUNCTION_PERSONALITY (expr))
 794     lto_init_eh ();
 795 }
 796
 797
 798 /* Read all pointer fields in the TS_TYPE_COMMON structure of EXPR from
 799    input block IB.  DATA_IN contains tables and descriptors for the file
 800    being read.  */
 801
 802 static void
 803 lto_input_ts_type_common_tree_pointers (struct lto_input_block *ib,
 804                                         struct data_in *data_in, tree expr)
 805 {
 806   TYPE_SIZE (expr) = stream_read_tree (ib, data_in);
 807   TYPE_SIZE_UNIT (expr) = stream_read_tree (ib, data_in);
 808   TYPE_ATTRIBUTES (expr) = stream_read_tree (ib, data_in);
 809   TYPE_NAME (expr) = stream_read_tree (ib, data_in);
 810   /* Do not stream TYPE_POINTER_TO or TYPE_REFERENCE_TO.  They will be
 811      reconstructed during fixup.  */
 812   /* Do not stream TYPE_NEXT_VARIANT, we reconstruct the variant lists
 813      during fixup.  */
 814   TYPE_MAIN_VARIANT (expr) = stream_read_tree (ib, data_in);
 815   TYPE_CONTEXT (expr) = stream_read_tree (ib, data_in);
 816   /* TYPE_CANONICAL gets re-computed during type merging.  */
 817   TYPE_CANONICAL (expr) = NULL_TREE;
 818   TYPE_STUB_DECL (expr) = stream_read_tree (ib, data_in);
 819 }
 820
 821 /* Read all pointer fields in the TS_TYPE_NON_COMMON structure of EXPR
 822    from input block IB.  DATA_IN contains tables and descriptors for the
 823    file being read.  */
 824
 825 static void
 826 lto_input_ts_type_non_common_tree_pointers (struct lto_input_block *ib,
 827                                             struct data_in *data_in,
 828                                             tree expr)
 829 {
 830   if (TREE_CODE (expr) == ENUMERAL_TYPE)
 831     TYPE_VALUES (expr) = stream_read_tree (ib, data_in);
 832   else if (TREE_CODE (expr) == ARRAY_TYPE)
 833     TYPE_DOMAIN (expr) = stream_read_tree (ib, data_in);
 834   else if (RECORD_OR_UNION_TYPE_P (expr))
 835     TYPE_FIELDS (expr) = streamer_read_chain (ib, data_in);
 836   else if (TREE_CODE (expr) == FUNCTION_TYPE
 837            || TREE_CODE (expr) == METHOD_TYPE)
 838     TYPE_ARG_TYPES (expr) = stream_read_tree (ib, data_in);
 839
 840   if (!POINTER_TYPE_P (expr))
 841     TYPE_MINVAL (expr) = stream_read_tree (ib, data_in);
 842   TYPE_MAXVAL (expr) = stream_read_tree (ib, data_in);
 843   if (RECORD_OR_UNION_TYPE_P (expr))
 844     TYPE_BINFO (expr) = stream_read_tree (ib, data_in);
 845 }
 846
 847
 848 /* Read all pointer fields in the TS_LIST structure of EXPR from input
 849    block IB.  DATA_IN contains tables and descriptors for the
 850    file being read.  */
 851
 852 static void
 853 lto_input_ts_list_tree_pointers (struct lto_input_block *ib,
 854                                  struct data_in *data_in, tree expr)
 855 {
 856   TREE_PURPOSE (expr) = stream_read_tree (ib, data_in);
 857   TREE_VALUE (expr) = stream_read_tree (ib, data_in);
 858   TREE_CHAIN (expr) = stream_read_tree (ib, data_in);
 859 }
 860
 861
 862 /* Read all pointer fields in the TS_VEC structure of EXPR from input
 863    block IB.  DATA_IN contains tables and descriptors for the
 864    file being read.  */
 865
 866 static void
 867 lto_input_ts_vec_tree_pointers (struct lto_input_block *ib,
 868                                 struct data_in *data_in, tree expr)
 869 {
 870   int i;
 871
 872   /* Note that TREE_VEC_LENGTH was read by streamer_alloc_tree to
 873      instantiate EXPR.  */
 874   for (i = 0; i < TREE_VEC_LENGTH (expr); i++)
 875     TREE_VEC_ELT (expr, i) = stream_read_tree (ib, data_in);
 876 }
 877
 878
 879 /* Read all pointer fields in the TS_EXP structure of EXPR from input
 880    block IB.  DATA_IN contains tables and descriptors for the
 881    file being read.  */
 882
 883
 884 static void
 885 lto_input_ts_exp_tree_pointers (struct lto_input_block *ib,
 886                                 struct data_in *data_in, tree expr)
 887 {
 888   int i;
 889   tree block;
 890
 891   for (i = 0; i < TREE_OPERAND_LENGTH (expr); i++)
 892     TREE_OPERAND (expr, i) = stream_read_tree (ib, data_in);
 893
 894   block = stream_read_tree (ib, data_in);
 895
 896   /* TODO: Block is stored in the locus information.  It may make more sense to
 897      to make it go via the location cache.  */
 898   if (block)
 899     {
 900       data_in->location_cache.apply_location_cache ();
 901       TREE_SET_BLOCK (expr, block);
 902     }
 903 }
 904
 905
 906 /* Read all pointer fields in the TS_BLOCK structure of EXPR from input
 907    block IB.  DATA_IN contains tables and descriptors for the
 908    file being read.  */
 909
 910 static void
 911 lto_input_ts_block_tree_pointers (struct lto_input_block *ib,
 912                                   struct data_in *data_in, tree expr)
 913 {
 914   BLOCK_VARS (expr) = streamer_read_chain (ib, data_in);
 915
 916   BLOCK_SUPERCONTEXT (expr) = stream_read_tree (ib, data_in);
 917
 918   /* Stream BLOCK_ABSTRACT_ORIGIN and BLOCK_SOURCE_LOCATION for
 919      the limited cases we can handle - those that represent inlined
 920      function scopes.  For the rest them on the floor instead of ICEing in
 921      dwarf2out.c.  */
 922   BLOCK_ABSTRACT_ORIGIN (expr) = stream_read_tree (ib, data_in);
 923   /* Do not stream BLOCK_NONLOCALIZED_VARS.  We cannot handle debug information
 924      for early inlined BLOCKs so drop it on the floor instead of ICEing in
 925      dwarf2out.c.  */
 926
 927   /* BLOCK_FRAGMENT_ORIGIN and BLOCK_FRAGMENT_CHAIN is not live at LTO
 928      streaming time.  */
 929
 930   /* We re-compute BLOCK_SUBBLOCKS of our parent here instead
 931      of streaming it.  For non-BLOCK BLOCK_SUPERCONTEXTs we still
 932      stream the child relationship explicitly.  */
 933   if (BLOCK_SUPERCONTEXT (expr)
 934       && TREE_CODE (BLOCK_SUPERCONTEXT (expr)) == BLOCK)
 935     {
 936       BLOCK_CHAIN (expr) = BLOCK_SUBBLOCKS (BLOCK_SUPERCONTEXT (expr));
 937       BLOCK_SUBBLOCKS (BLOCK_SUPERCONTEXT (expr)) = expr;
 938     }
 939
 940   /* The global block is rooted at the TU decl.  Hook it here to
 941      avoid the need to stream in this block during WPA time.  */
 942   else if (BLOCK_SUPERCONTEXT (expr)
 943            && TREE_CODE (BLOCK_SUPERCONTEXT (expr)) == TRANSLATION_UNIT_DECL)
 944     DECL_INITIAL (BLOCK_SUPERCONTEXT (expr)) = expr;
 945
 946   /* The function-level block is connected at the time we read in
 947      function bodies for the same reason.  */
 948 }
 949
 950
 951 /* Read all pointer fields in the TS_BINFO structure of EXPR from input
 952    block IB.  DATA_IN contains tables and descriptors for the
 953    file being read.  */
 954
 955 static void
 956 lto_input_ts_binfo_tree_pointers (struct lto_input_block *ib,
 957                                   struct data_in *data_in, tree expr)
 958 {
 959   unsigned i;
 960   tree t;
 961
 962   /* Note that the number of slots in EXPR was read in
 963      streamer_alloc_tree when instantiating EXPR.  However, the
 964      vector is empty so we cannot rely on vec::length to know how many
 965      elements to read.  So, this list is emitted as a 0-terminated
 966      list on the writer side.  */
 967   do
 968     {
 969       t = stream_read_tree (ib, data_in);
 970       if (t)
 971         BINFO_BASE_BINFOS (expr)->quick_push (t);
 972     }
 973   while (t);
 974
 975   BINFO_OFFSET (expr) = stream_read_tree (ib, data_in);
 976   BINFO_VTABLE (expr) = stream_read_tree (ib, data_in);
 977   BINFO_VPTR_FIELD (expr) = stream_read_tree (ib, data_in);
 978
 979   /* The vector of BINFO_BASE_ACCESSES is pre-allocated during
 980      unpacking the bitfield section.  */
 981   for (i = 0; i < vec_safe_length (BINFO_BASE_ACCESSES (expr)); i++)
 982     {
 983       tree a = stream_read_tree (ib, data_in);
 984       (*BINFO_BASE_ACCESSES (expr))[i] = a;
 985     }
 986   /* Do not walk BINFO_INHERITANCE_CHAIN, BINFO_SUBVTT_INDEX
 987      and BINFO_VPTR_INDEX; these are used by C++ FE only.  */
 988 }
 989
 990
 991 /* Read all pointer fields in the TS_CONSTRUCTOR structure of EXPR from
 992    input block IB.  DATA_IN contains tables and descriptors for the
 993    file being read.  */
 994
 995 static void
 996 lto_input_ts_constructor_tree_pointers (struct lto_input_block *ib,
 997                                         struct data_in *data_in, tree expr)
 998 {
 999   unsigned i;
1000
1001   for (i = 0; i < CONSTRUCTOR_NELTS (expr); i++)
1002     {
1003       constructor_elt e;
1004       e.index = stream_read_tree (ib, data_in);
1005       e.value = stream_read_tree (ib, data_in);
1006       (*CONSTRUCTOR_ELTS (expr))[i] = e;
1007     }
1008 }
1009
1010
1011 /* Read all pointer fields in the TS_OMP_CLAUSE structure of EXPR from
1012    input block IB.  DATA_IN contains tables and descriptors for the
1013    file being read.  */
1014
1015 static void
1016 lto_input_ts_omp_clause_tree_pointers (struct lto_input_block *ib,
1017                                        struct data_in *data_in, tree expr)
1018 {
1019   int i;
1020
1021   for (i = 0; i < omp_clause_num_ops[OMP_CLAUSE_CODE (expr)]; i++)
1022     OMP_CLAUSE_OPERAND (expr, i) = stream_read_tree (ib, data_in);
1023   OMP_CLAUSE_CHAIN (expr) = stream_read_tree (ib, data_in);
1024 }
1025
1026
1027 /* Read all pointer fields in EXPR from input block IB.  DATA_IN
1028    contains tables and descriptors for the file being read.  */
1029
1030 void
1031 streamer_read_tree_body (struct lto_input_block *ib, struct data_in *data_in,
1032                          tree expr)
1033 {
1034   enum tree_code code;
1035
1036   code = TREE_CODE (expr);
1037
1038   if (CODE_CONTAINS_STRUCT (code, TS_TYPED))
1039     lto_input_ts_common_tree_pointers (ib, data_in, expr);
1040
1041   if (CODE_CONTAINS_STRUCT (code, TS_VECTOR))
1042     lto_input_ts_vector_tree_pointers (ib, data_in, expr);
1043
1044   if (CODE_CONTAINS_STRUCT (code, TS_COMPLEX))
1045     lto_input_ts_complex_tree_pointers (ib, data_in, expr);
1046
1047   if (CODE_CONTAINS_STRUCT (code, TS_DECL_MINIMAL))
1048     lto_input_ts_decl_minimal_tree_pointers (ib, data_in, expr);
1049
1050   if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
1051     lto_input_ts_decl_common_tree_pointers (ib, data_in, expr);
1052
1053   if (CODE_CONTAINS_STRUCT (code, TS_DECL_NON_COMMON))
1054     lto_input_ts_decl_non_common_tree_pointers (ib, data_in, expr);
1055
1056   if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS))
1057     lto_input_ts_decl_with_vis_tree_pointers (ib, data_in, expr);
1058
1059   if (CODE_CONTAINS_STRUCT (code, TS_FIELD_DECL))
1060     lto_input_ts_field_decl_tree_pointers (ib, data_in, expr);
1061
1062   if (CODE_CONTAINS_STRUCT (code, TS_FUNCTION_DECL))
1063     lto_input_ts_function_decl_tree_pointers (ib, data_in, expr);
1064
1065   if (CODE_CONTAINS_STRUCT (code, TS_TYPE_COMMON))
1066     lto_input_ts_type_common_tree_pointers (ib, data_in, expr);
1067
1068   if (CODE_CONTAINS_STRUCT (code, TS_TYPE_NON_COMMON))
1069     lto_input_ts_type_non_common_tree_pointers (ib, data_in, expr);
1070
1071   if (CODE_CONTAINS_STRUCT (code, TS_LIST))
1072     lto_input_ts_list_tree_pointers (ib, data_in, expr);
1073
1074   if (CODE_CONTAINS_STRUCT (code, TS_VEC))
1075     lto_input_ts_vec_tree_pointers (ib, data_in, expr);
1076
1077   if (CODE_CONTAINS_STRUCT (code, TS_EXP))
1078     lto_input_ts_exp_tree_pointers (ib, data_in, expr);
1079
1080   if (CODE_CONTAINS_STRUCT (code, TS_BLOCK))
1081     lto_input_ts_block_tree_pointers (ib, data_in, expr);
1082
1083   if (CODE_CONTAINS_STRUCT (code, TS_BINFO))
1084     lto_input_ts_binfo_tree_pointers (ib, data_in, expr);
1085
1086   if (CODE_CONTAINS_STRUCT (code, TS_CONSTRUCTOR))
1087     lto_input_ts_constructor_tree_pointers (ib, data_in, expr);
1088
1089   if (code == OMP_CLAUSE)
1090     lto_input_ts_omp_clause_tree_pointers (ib, data_in, expr);
1091 }
1092
1093
1094 /* Read an index IX from input block IB and return the tree node at
1095    DATA_IN->FILE_DATA->GLOBALS_INDEX[IX].  */
1096
1097 tree
1098 streamer_get_pickled_tree (struct lto_input_block *ib, struct data_in *data_in)
1099 {
1100   unsigned HOST_WIDE_INT ix;
1101   tree result;
1102   enum LTO_tags expected_tag;
1103
1104   ix = streamer_read_uhwi (ib);
1105   expected_tag = streamer_read_enum (ib, LTO_tags, LTO_NUM_TAGS);
1106
1107   result = streamer_tree_cache_get_tree (data_in->reader_cache, ix);
1108   gcc_assert (result
1109               && TREE_CODE (result) == lto_tag_to_tree_code (expected_tag));
1110
1111   return result;
1112 }
1113
1114
1115 /* Read a code and class from input block IB and return the
1116    corresponding builtin.  DATA_IN is as in stream_read_tree.  */
1117
1118 tree
1119 streamer_get_builtin_tree (struct lto_input_block *ib, struct data_in *data_in)
1120 {
1121   enum built_in_class fclass;
1122   enum built_in_function fcode;
1123   const char *asmname;
1124   tree result;
1125
1126   fclass = streamer_read_enum (ib, built_in_class, BUILT_IN_LAST);
1127   gcc_assert (fclass == BUILT_IN_NORMAL || fclass == BUILT_IN_MD);
1128
1129   fcode = (enum built_in_function) streamer_read_uhwi (ib);
1130
1131   if (fclass == BUILT_IN_NORMAL)
1132     {
1133       if (fcode >= END_BUILTINS)
1134         fatal_error (input_location,
1135                      "machine independent builtin code out of range");
1136       result = builtin_decl_explicit (fcode);
1137       if (!result
1138           && fcode > BEGIN_CHKP_BUILTINS
1139           && fcode < END_CHKP_BUILTINS)
1140         {
1141           fcode = (enum built_in_function) (fcode - BEGIN_CHKP_BUILTINS - 1);
1142           result = builtin_decl_explicit (fcode);
1143           result = chkp_maybe_clone_builtin_fndecl (result);
1144         }
1145       gcc_assert (result);
1146     }
1147   else if (fclass == BUILT_IN_MD)
1148     {
1149       result = targetm.builtin_decl (fcode, true);
1150       if (!result || result == error_mark_node)
1151         fatal_error (input_location, "target specific builtin not available");
1152     }
1153   else
1154     gcc_unreachable ();
1155
1156   asmname = streamer_read_string (data_in, ib);
1157   if (asmname)
1158     set_builtin_user_assembler_name (result, asmname);
1159
1160   streamer_tree_cache_append (data_in->reader_cache, result, 0);
1161
1162   return result;
1163 }