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 "alias.h"
  27 #include "symtab.h"
  28 #include "options.h"
  29 #include "tree.h"
  30 #include "fold-const.h"
  31 #include "stringpool.h"
  32 #include "predict.h"
  33 #include "tm.h"
  34 #include "hard-reg-set.h"
  35 #include "function.h"
  36 #include "basic-block.h"
  37 #include "tree-ssa-alias.h"
  38 #include "internal-fn.h"
  39 #include "gimple-expr.h"
  40 #include "gimple.h"
  41 #include "cgraph.h"
  42 #include "tree-streamer.h"
  43 #include "data-streamer.h"
  44 #include "streamer-hooks.h"
  45 #include "lto-streamer.h"
  46 #include "builtins.h"
  47 #include "ipa-chkp.h"
  48 #include "gomp-constants.h"
  49
  50
  51 /* Read a STRING_CST from the string table in DATA_IN using input
  52    block IB.  */
  53
  54 tree
  55 streamer_read_string_cst (struct data_in *data_in, struct lto_input_block *ib)
  56 {
  57   unsigned int len;
  58   const char * ptr;
  59
  60   ptr = streamer_read_indexed_string (data_in, ib, &len);
  61   if (!ptr)
  62     return NULL;
  63   return build_string (len, ptr);
  64 }
  65
  66
  67 /* Read an IDENTIFIER from the string table in DATA_IN using input
  68    block IB.  */
  69
  70 static tree
  71 input_identifier (struct data_in *data_in, struct lto_input_block *ib)
  72 {
  73   unsigned int len;
  74   const char *ptr;
  75
  76   ptr = streamer_read_indexed_string (data_in, ib, &len);
  77   if (!ptr)
  78     return NULL;
  79   return get_identifier_with_length (ptr, len);
  80 }
  81
  82
  83 /* Read a chain of tree nodes from input block IB. DATA_IN contains
  84    tables and descriptors for the file being read.  */
  85
  86 tree
  87 streamer_read_chain (struct lto_input_block *ib, struct data_in *data_in)
  88 {
  89   tree first, prev, curr;
  90
  91   /* The chain is written as NULL terminated list of trees.  */
  92   first = prev = NULL_TREE;
  93   do
  94     {
  95       curr = stream_read_tree (ib, data_in);
  96       if (prev)
  97         TREE_CHAIN (prev) = curr;
  98       else
  99         first = curr;
 100
 101       prev = curr;
 102     }
 103   while (curr);
 104
 105   return first;
 106 }
 107
 108
 109 /* Unpack all the non-pointer fields of the TS_BASE structure of
 110    expression EXPR from bitpack BP.  */
 111
 112 static inline void
 113 unpack_ts_base_value_fields (struct bitpack_d *bp, tree expr)
 114 {
 115   /* Note that the code for EXPR has already been unpacked to create EXPR in
 116      streamer_alloc_tree.  */
 117   if (!TYPE_P (expr))
 118     {
 119       TREE_SIDE_EFFECTS (expr) = (unsigned) bp_unpack_value (bp, 1);
 120       TREE_CONSTANT (expr) = (unsigned) bp_unpack_value (bp, 1);
 121       TREE_READONLY (expr) = (unsigned) bp_unpack_value (bp, 1);
 122
 123       /* TREE_PUBLIC is used on types to indicate that the type
 124          has a TYPE_CACHED_VALUES vector.  This is not streamed out,
 125          so we skip it here.  */
 126       TREE_PUBLIC (expr) = (unsigned) bp_unpack_value (bp, 1);
 127     }
 128   else
 129     bp_unpack_value (bp, 4);
 130   TREE_ADDRESSABLE (expr) = (unsigned) bp_unpack_value (bp, 1);
 131   TREE_THIS_VOLATILE (expr) = (unsigned) bp_unpack_value (bp, 1);
 132   if (DECL_P (expr))
 133     DECL_UNSIGNED (expr) = (unsigned) bp_unpack_value (bp, 1);
 134   else if (TYPE_P (expr))
 135     TYPE_UNSIGNED (expr) = (unsigned) bp_unpack_value (bp, 1);
 136   else
 137     bp_unpack_value (bp, 1);
 138   TREE_ASM_WRITTEN (expr) = (unsigned) bp_unpack_value (bp, 1);
 139   if (TYPE_P (expr))
 140     TYPE_ARTIFICIAL (expr) = (unsigned) bp_unpack_value (bp, 1);
 141   else
 142     TREE_NO_WARNING (expr) = (unsigned) bp_unpack_value (bp, 1);
 143   TREE_NOTHROW (expr) = (unsigned) bp_unpack_value (bp, 1);
 144   TREE_STATIC (expr) = (unsigned) bp_unpack_value (bp, 1);
 145   if (TREE_CODE (expr) != TREE_BINFO)
 146     TREE_PRIVATE (expr) = (unsigned) bp_unpack_value (bp, 1);
 147   else
 148     bp_unpack_value (bp, 1);
 149   TREE_PROTECTED (expr) = (unsigned) bp_unpack_value (bp, 1);
 150   TREE_DEPRECATED (expr) = (unsigned) bp_unpack_value (bp, 1);
 151   if (TYPE_P (expr))
 152     {
 153       TYPE_SATURATING (expr) = (unsigned) bp_unpack_value (bp, 1);
 154       TYPE_ADDR_SPACE (expr) = (unsigned) bp_unpack_value (bp, 8);
 155     }
 156   else if (TREE_CODE (expr) == SSA_NAME)
 157     {
 158       SSA_NAME_IS_DEFAULT_DEF (expr) = (unsigned) bp_unpack_value (bp, 1);
 159       bp_unpack_value (bp, 8);
 160     }
 161   else
 162     bp_unpack_value (bp, 9);
 163 }
 164
 165
 166 /* Unpack all the non-pointer fields of the TS_INT_CST structure of
 167    expression EXPR from bitpack BP.  */
 168
 169 static void
 170 unpack_ts_int_cst_value_fields (struct bitpack_d *bp, tree expr)
 171 {
 172   int i;
 173   for (i = 0; i < TREE_INT_CST_EXT_NUNITS (expr); i++)
 174     TREE_INT_CST_ELT (expr, i) = bp_unpack_var_len_int (bp);
 175 }
 176
 177
 178 /* Unpack all the non-pointer fields of the TS_REAL_CST structure of
 179    expression EXPR from bitpack BP.  */
 180
 181 static void
 182 unpack_ts_real_cst_value_fields (struct bitpack_d *bp, tree expr)
 183 {
 184   unsigned i;
 185   REAL_VALUE_TYPE r;
 186   REAL_VALUE_TYPE *rp;
 187
 188   /* Clear all bits of the real value type so that we can later do
 189      bitwise comparisons to see if two values are the same.  */
 190   memset (&r, 0, sizeof r);
 191   r.cl = (unsigned) bp_unpack_value (bp, 2);
 192   r.decimal = (unsigned) bp_unpack_value (bp, 1);
 193   r.sign = (unsigned) bp_unpack_value (bp, 1);
 194   r.signalling = (unsigned) bp_unpack_value (bp, 1);
 195   r.canonical = (unsigned) bp_unpack_value (bp, 1);
 196   r.uexp = (unsigned) bp_unpack_value (bp, EXP_BITS);
 197   for (i = 0; i < SIGSZ; i++)
 198     r.sig[i] = (unsigned long) bp_unpack_value (bp, HOST_BITS_PER_LONG);
 199
 200   rp = ggc_alloc<real_value> ();
 201   memcpy (rp, &r, sizeof (REAL_VALUE_TYPE));
 202   TREE_REAL_CST_PTR (expr) = rp;
 203 }
 204
 205
 206 /* Unpack all the non-pointer fields of the TS_FIXED_CST structure of
 207    expression EXPR from bitpack BP.  */
 208
 209 static void
 210 unpack_ts_fixed_cst_value_fields (struct bitpack_d *bp, tree expr)
 211 {
 212   FIXED_VALUE_TYPE *fp = ggc_alloc<fixed_value> ();
 213   fp->mode = bp_unpack_machine_mode (bp);
 214   fp->data.low = bp_unpack_var_len_int (bp);
 215   fp->data.high = bp_unpack_var_len_int (bp);
 216   TREE_FIXED_CST_PTR (expr) = fp;
 217 }
 218
 219 /* Unpack all the non-pointer fields of the TS_DECL_COMMON structure
 220    of expression EXPR from bitpack BP.  */
 221
 222 static void
 223 unpack_ts_decl_common_value_fields (struct bitpack_d *bp, tree expr)
 224 {
 225   DECL_MODE (expr) = bp_unpack_machine_mode (bp);
 226   DECL_NONLOCAL (expr) = (unsigned) bp_unpack_value (bp, 1);
 227   DECL_VIRTUAL_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 228   DECL_IGNORED_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 229   DECL_ABSTRACT_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 230   DECL_ARTIFICIAL (expr) = (unsigned) bp_unpack_value (bp, 1);
 231   DECL_USER_ALIGN (expr) = (unsigned) bp_unpack_value (bp, 1);
 232   DECL_PRESERVE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 233   DECL_EXTERNAL (expr) = (unsigned) bp_unpack_value (bp, 1);
 234   DECL_GIMPLE_REG_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 235   DECL_ALIGN (expr) = (unsigned) bp_unpack_var_len_unsigned (bp);
 236 #ifdef ACCEL_COMPILER
 237   if (DECL_ALIGN (expr) > targetm.absolute_biggest_alignment)
 238     DECL_ALIGN (expr) = targetm.absolute_biggest_alignment;
 239 #endif
 240   if (TREE_CODE (expr) == LABEL_DECL)
 241     {
 242       EH_LANDING_PAD_NR (expr) = (int) bp_unpack_var_len_unsigned (bp);
 243
 244       /* Always assume an initial value of -1 for LABEL_DECL_UID to
 245          force gimple_set_bb to recreate label_to_block_map.  */
 246       LABEL_DECL_UID (expr) = -1;
 247     }
 248
 249   if (TREE_CODE (expr) == FIELD_DECL)
 250     {
 251       DECL_PACKED (expr) = (unsigned) bp_unpack_value (bp, 1);
 252       DECL_NONADDRESSABLE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 253       expr->decl_common.off_align = bp_unpack_value (bp, 8);
 254     }
 255
 256   if (TREE_CODE (expr) == VAR_DECL)
 257     {
 258       DECL_HAS_DEBUG_EXPR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 259       DECL_NONLOCAL_FRAME (expr) = (unsigned) bp_unpack_value (bp, 1);
 260     }
 261
 262   if (TREE_CODE (expr) == RESULT_DECL
 263       || TREE_CODE (expr) == PARM_DECL
 264       || TREE_CODE (expr) == VAR_DECL)
 265     {
 266       DECL_BY_REFERENCE (expr) = (unsigned) bp_unpack_value (bp, 1);
 267       if (TREE_CODE (expr) == VAR_DECL
 268           || TREE_CODE (expr) == PARM_DECL)
 269         DECL_HAS_VALUE_EXPR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 270     }
 271 }
 272
 273
 274 /* Unpack all the non-pointer fields of the TS_DECL_WRTL structure
 275    of expression EXPR from bitpack BP.  */
 276
 277 static void
 278 unpack_ts_decl_wrtl_value_fields (struct bitpack_d *bp, tree expr)
 279 {
 280   DECL_REGISTER (expr) = (unsigned) bp_unpack_value (bp, 1);
 281 }
 282
 283
 284 /* Unpack all the non-pointer fields of the TS_DECL_WITH_VIS structure
 285    of expression EXPR from bitpack BP.  */
 286
 287 static void
 288 unpack_ts_decl_with_vis_value_fields (struct bitpack_d *bp, tree expr)
 289 {
 290   DECL_COMMON (expr) = (unsigned) bp_unpack_value (bp, 1);
 291   DECL_DLLIMPORT_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 292   DECL_WEAK (expr) = (unsigned) bp_unpack_value (bp, 1);
 293   DECL_SEEN_IN_BIND_EXPR_P (expr) = (unsigned) bp_unpack_value (bp,  1);
 294   DECL_COMDAT (expr) = (unsigned) bp_unpack_value (bp,  1);
 295   DECL_VISIBILITY (expr) = (enum symbol_visibility) bp_unpack_value (bp,  2);
 296   DECL_VISIBILITY_SPECIFIED (expr) = (unsigned) bp_unpack_value (bp,  1);
 297
 298   if (TREE_CODE (expr) == VAR_DECL)
 299     {
 300       DECL_HARD_REGISTER (expr) = (unsigned) bp_unpack_value (bp, 1);
 301       DECL_IN_CONSTANT_POOL (expr) = (unsigned) bp_unpack_value (bp, 1);
 302     }
 303
 304   if (TREE_CODE (expr) == FUNCTION_DECL)
 305     {
 306       DECL_FINAL_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 307       DECL_CXX_CONSTRUCTOR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 308       DECL_CXX_DESTRUCTOR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 309     }
 310 }
 311
 312
 313 /* Unpack all the non-pointer fields of the TS_FUNCTION_DECL structure
 314    of expression EXPR from bitpack BP.  */
 315
 316 static void
 317 unpack_ts_function_decl_value_fields (struct bitpack_d *bp, tree expr)
 318 {
 319   DECL_BUILT_IN_CLASS (expr) = bp_unpack_enum (bp, built_in_class,
 320                                                BUILT_IN_LAST);
 321   DECL_STATIC_CONSTRUCTOR (expr) = (unsigned) bp_unpack_value (bp, 1);
 322   DECL_STATIC_DESTRUCTOR (expr) = (unsigned) bp_unpack_value (bp, 1);
 323   DECL_UNINLINABLE (expr) = (unsigned) bp_unpack_value (bp, 1);
 324   DECL_POSSIBLY_INLINED (expr) = (unsigned) bp_unpack_value (bp, 1);
 325   DECL_IS_NOVOPS (expr) = (unsigned) bp_unpack_value (bp, 1);
 326   DECL_IS_RETURNS_TWICE (expr) = (unsigned) bp_unpack_value (bp, 1);
 327   DECL_IS_MALLOC (expr) = (unsigned) bp_unpack_value (bp, 1);
 328   DECL_IS_OPERATOR_NEW (expr) = (unsigned) bp_unpack_value (bp, 1);
 329   DECL_DECLARED_INLINE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 330   DECL_STATIC_CHAIN (expr) = (unsigned) bp_unpack_value (bp, 1);
 331   DECL_NO_INLINE_WARNING_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 332   DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT (expr)
 333                         = (unsigned) bp_unpack_value (bp, 1);
 334   DECL_NO_LIMIT_STACK (expr) = (unsigned) bp_unpack_value (bp, 1);
 335   DECL_DISREGARD_INLINE_LIMITS (expr) = (unsigned) bp_unpack_value (bp, 1);
 336   DECL_PURE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 337   DECL_LOOPING_CONST_OR_PURE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 338   if (DECL_BUILT_IN_CLASS (expr) != NOT_BUILT_IN)
 339     {
 340       DECL_FUNCTION_CODE (expr) = (enum built_in_function) bp_unpack_value (bp,
 341                                                                             12);
 342       if (DECL_BUILT_IN_CLASS (expr) == BUILT_IN_NORMAL
 343           && DECL_FUNCTION_CODE (expr) >= END_BUILTINS)
 344         fatal_error (input_location,
 345                      "machine independent builtin code out of range");
 346       else if (DECL_BUILT_IN_CLASS (expr) == BUILT_IN_MD)
 347         {
 348           tree result = targetm.builtin_decl (DECL_FUNCTION_CODE (expr), true);
 349           if (!result || result == error_mark_node)
 350             fatal_error (input_location,
 351                          "target specific builtin not available");
 352         }
 353     }
 354 }
 355
 356
 357 /* Unpack all the non-pointer fields of the TS_TYPE_COMMON structure
 358    of expression EXPR from bitpack BP.  */
 359
 360 static void
 361 unpack_ts_type_common_value_fields (struct bitpack_d *bp, tree expr)
 362 {
 363   machine_mode mode;
 364
 365   mode = bp_unpack_machine_mode (bp);
 366   SET_TYPE_MODE (expr, mode);
 367   TYPE_STRING_FLAG (expr) = (unsigned) bp_unpack_value (bp, 1);
 368   /* TYPE_NO_FORCE_BLK is private to stor-layout and need
 369      no streaming.  */
 370   TYPE_NEEDS_CONSTRUCTING (expr) = (unsigned) bp_unpack_value (bp, 1);
 371   if (RECORD_OR_UNION_TYPE_P (expr))
 372     {
 373       TYPE_TRANSPARENT_AGGR (expr) = (unsigned) bp_unpack_value (bp, 1);
 374       TYPE_FINAL_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 375     }
 376   else if (TREE_CODE (expr) == ARRAY_TYPE)
 377     TYPE_NONALIASED_COMPONENT (expr) = (unsigned) bp_unpack_value (bp, 1);
 378   TYPE_PACKED (expr) = (unsigned) bp_unpack_value (bp, 1);
 379   TYPE_RESTRICT (expr) = (unsigned) bp_unpack_value (bp, 1);
 380   TYPE_USER_ALIGN (expr) = (unsigned) bp_unpack_value (bp, 1);
 381   TYPE_READONLY (expr) = (unsigned) bp_unpack_value (bp, 1);
 382   TYPE_PRECISION (expr) = bp_unpack_var_len_unsigned (bp);
 383   TYPE_ALIGN (expr) = bp_unpack_var_len_unsigned (bp);
 384 #ifdef ACCEL_COMPILER
 385   if (TYPE_ALIGN (expr) > targetm.absolute_biggest_alignment)
 386     TYPE_ALIGN (expr) = targetm.absolute_biggest_alignment;
 387 #endif
 388   TYPE_ALIAS_SET (expr) = bp_unpack_var_len_int (bp);
 389 }
 390
 391
 392 /* Unpack all the non-pointer fields of the TS_BLOCK structure
 393    of expression EXPR from bitpack BP.  */
 394
 395 static void
 396 unpack_ts_block_value_fields (struct data_in *data_in,
 397                               struct bitpack_d *bp, tree expr)
 398 {
 399   BLOCK_ABSTRACT (expr) = (unsigned) bp_unpack_value (bp, 1);
 400   /* BLOCK_NUMBER is recomputed.  */
 401   stream_input_location (&BLOCK_SOURCE_LOCATION (expr), bp, data_in);
 402 }
 403
 404 /* Unpack all the non-pointer fields of the TS_TRANSLATION_UNIT_DECL
 405    structure of expression EXPR from bitpack BP.  */
 406
 407 static void
 408 unpack_ts_translation_unit_decl_value_fields (struct data_in *data_in,
 409                                               struct bitpack_d *bp, tree expr)
 410 {
 411   TRANSLATION_UNIT_LANGUAGE (expr) = xstrdup (bp_unpack_string (data_in, bp));
 412   vec_safe_push (all_translation_units, expr);
 413 }
 414
 415
 416 /* Unpack all the non-pointer fields of the TS_OMP_CLAUSE
 417    structure of expression EXPR from bitpack BP.  */
 418
 419 static void
 420 unpack_ts_omp_clause_value_fields (struct data_in *data_in,
 421                                    struct bitpack_d *bp, tree expr)
 422 {
 423   stream_input_location (&OMP_CLAUSE_LOCATION (expr), bp, data_in);
 424   switch (OMP_CLAUSE_CODE (expr))
 425     {
 426     case OMP_CLAUSE_DEFAULT:
 427       OMP_CLAUSE_DEFAULT_KIND (expr)
 428         = bp_unpack_enum (bp, omp_clause_default_kind,
 429                           OMP_CLAUSE_DEFAULT_LAST);
 430       break;
 431     case OMP_CLAUSE_SCHEDULE:
 432       OMP_CLAUSE_SCHEDULE_KIND (expr)
 433         = bp_unpack_enum (bp, omp_clause_schedule_kind,
 434                           OMP_CLAUSE_SCHEDULE_LAST);
 435       break;
 436     case OMP_CLAUSE_DEPEND:
 437       OMP_CLAUSE_DEPEND_KIND (expr)
 438         = bp_unpack_enum (bp, omp_clause_depend_kind, OMP_CLAUSE_DEPEND_LAST);
 439       break;
 440     case OMP_CLAUSE_MAP:
 441       OMP_CLAUSE_SET_MAP_KIND (expr, bp_unpack_enum (bp, gomp_map_kind,
 442                                                      GOMP_MAP_LAST));
 443       break;
 444     case OMP_CLAUSE_PROC_BIND:
 445       OMP_CLAUSE_PROC_BIND_KIND (expr)
 446         = bp_unpack_enum (bp, omp_clause_proc_bind_kind,
 447                           OMP_CLAUSE_PROC_BIND_LAST);
 448       break;
 449     case OMP_CLAUSE_REDUCTION:
 450       OMP_CLAUSE_REDUCTION_CODE (expr)
 451         = bp_unpack_enum (bp, tree_code, MAX_TREE_CODES);
 452       break;
 453     default:
 454       break;
 455     }
 456 }
 457
 458
 459 /* Read all the language-independent bitfield values for EXPR from IB.
 460    Return the partially unpacked bitpack so the caller can unpack any other
 461    bitfield values that the writer may have written.  */
 462
 463 void
 464 streamer_read_tree_bitfields (struct lto_input_block *ib,
 465                               struct data_in *data_in, tree expr)
 466 {
 467   enum tree_code code;
 468   struct bitpack_d bp;
 469
 470   /* Read the bitpack of non-pointer values from IB.  */
 471   bp = streamer_read_bitpack (ib);
 472
 473   /* The first word in BP contains the code of the tree that we
 474      are about to read.  */
 475   code = (enum tree_code) bp_unpack_value (&bp, 16);
 476   lto_tag_check (lto_tree_code_to_tag (code),
 477                  lto_tree_code_to_tag (TREE_CODE (expr)));
 478
 479   /* Note that all these functions are highly sensitive to changes in
 480      the types and sizes of each of the fields being packed.  */
 481   unpack_ts_base_value_fields (&bp, expr);
 482
 483   if (CODE_CONTAINS_STRUCT (code, TS_INT_CST))
 484     unpack_ts_int_cst_value_fields (&bp, expr);
 485
 486   if (CODE_CONTAINS_STRUCT (code, TS_REAL_CST))
 487     unpack_ts_real_cst_value_fields (&bp, expr);
 488
 489   if (CODE_CONTAINS_STRUCT (code, TS_FIXED_CST))
 490     unpack_ts_fixed_cst_value_fields (&bp, expr);
 491
 492   if (CODE_CONTAINS_STRUCT (code, TS_DECL_MINIMAL))
 493     stream_input_location (&DECL_SOURCE_LOCATION (expr), &bp, data_in);
 494
 495   if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
 496     unpack_ts_decl_common_value_fields (&bp, expr);
 497
 498   if (CODE_CONTAINS_STRUCT (code, TS_DECL_WRTL))
 499     unpack_ts_decl_wrtl_value_fields (&bp, expr);
 500
 501   if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS))
 502     unpack_ts_decl_with_vis_value_fields (&bp, expr);
 503
 504   if (CODE_CONTAINS_STRUCT (code, TS_FUNCTION_DECL))
 505     unpack_ts_function_decl_value_fields (&bp, expr);
 506
 507   if (CODE_CONTAINS_STRUCT (code, TS_TYPE_COMMON))
 508     unpack_ts_type_common_value_fields (&bp, expr);
 509
 510   if (CODE_CONTAINS_STRUCT (code, TS_EXP))
 511     {
 512       stream_input_location (&EXPR_CHECK (expr)->exp.locus, &bp, data_in);
 513       if (code == MEM_REF
 514           || code == TARGET_MEM_REF)
 515         {
 516           MR_DEPENDENCE_CLIQUE (expr)
 517             = (unsigned)bp_unpack_value (&bp, sizeof (short) * 8);
 518           if (MR_DEPENDENCE_CLIQUE (expr) != 0)
 519             MR_DEPENDENCE_BASE (expr)
 520               = (unsigned)bp_unpack_value (&bp, sizeof (short) * 8);
 521         }
 522     }
 523
 524   if (CODE_CONTAINS_STRUCT (code, TS_BLOCK))
 525     unpack_ts_block_value_fields (data_in, &bp, expr);
 526
 527   if (CODE_CONTAINS_STRUCT (code, TS_TRANSLATION_UNIT_DECL))
 528     unpack_ts_translation_unit_decl_value_fields (data_in, &bp, expr);
 529
 530   if (CODE_CONTAINS_STRUCT (code, TS_OPTIMIZATION))
 531     cl_optimization_stream_in (&bp, TREE_OPTIMIZATION (expr));
 532
 533   if (CODE_CONTAINS_STRUCT (code, TS_BINFO))
 534     {
 535       unsigned HOST_WIDE_INT length = bp_unpack_var_len_unsigned (&bp);
 536       if (length > 0)
 537         vec_safe_grow (BINFO_BASE_ACCESSES (expr), length);
 538     }
 539
 540   if (CODE_CONTAINS_STRUCT (code, TS_CONSTRUCTOR))
 541     {
 542       unsigned HOST_WIDE_INT length = bp_unpack_var_len_unsigned (&bp);
 543       if (length > 0)
 544         vec_safe_grow (CONSTRUCTOR_ELTS (expr), length);
 545     }
 546
 547 #ifndef ACCEL_COMPILER
 548   if (CODE_CONTAINS_STRUCT (code, TS_TARGET_OPTION))
 549     {
 550       cl_target_option_stream_in (data_in, &bp, TREE_TARGET_OPTION (expr));
 551       if (targetm.target_option.post_stream_in)
 552         targetm.target_option.post_stream_in (TREE_TARGET_OPTION (expr));
 553     }
 554 #endif
 555
 556   if (code == OMP_CLAUSE)
 557     unpack_ts_omp_clause_value_fields (data_in, &bp, expr);
 558 }
 559
 560
 561 /* Materialize a new tree from input block IB using descriptors in
 562    DATA_IN.  The code for the new tree should match TAG.  Store in
 563    *IX_P the index into the reader cache where the new tree is stored.  */
 564
 565 tree
 566 streamer_alloc_tree (struct lto_input_block *ib, struct data_in *data_in,
 567                      enum LTO_tags tag)
 568 {
 569   enum tree_code code;
 570   tree result;
 571 #ifdef LTO_STREAMER_DEBUG
 572   HOST_WIDE_INT orig_address_in_writer;
 573 #endif
 574
 575   result = NULL_TREE;
 576
 577 #ifdef LTO_STREAMER_DEBUG
 578   /* Read the word representing the memory address for the tree
 579      as it was written by the writer.  This is useful when
 580      debugging differences between the writer and reader.  */
 581   orig_address_in_writer = streamer_read_hwi (ib);
 582   gcc_assert ((intptr_t) orig_address_in_writer == orig_address_in_writer);
 583 #endif
 584
 585   code = lto_tag_to_tree_code (tag);
 586
 587   /* We should never see an SSA_NAME tree.  Only the version numbers of
 588      SSA names are ever written out.  See input_ssa_names.  */
 589   gcc_assert (code != SSA_NAME);
 590
 591   /* Instantiate a new tree using the header data.  */
 592   if (CODE_CONTAINS_STRUCT (code, TS_STRING))
 593     result = streamer_read_string_cst (data_in, ib);
 594   else if (CODE_CONTAINS_STRUCT (code, TS_IDENTIFIER))
 595     result = input_identifier (data_in, ib);
 596   else if (CODE_CONTAINS_STRUCT (code, TS_VEC))
 597     {
 598       HOST_WIDE_INT len = streamer_read_hwi (ib);
 599       result = make_tree_vec (len);
 600     }
 601   else if (CODE_CONTAINS_STRUCT (code, TS_VECTOR))
 602     {
 603       HOST_WIDE_INT len = streamer_read_hwi (ib);
 604       result = make_vector (len);
 605     }
 606   else if (CODE_CONTAINS_STRUCT (code, TS_BINFO))
 607     {
 608       unsigned HOST_WIDE_INT len = streamer_read_uhwi (ib);
 609       result = make_tree_binfo (len);
 610     }
 611   else if (CODE_CONTAINS_STRUCT (code, TS_INT_CST))
 612     {
 613       unsigned HOST_WIDE_INT len = streamer_read_uhwi (ib);
 614       unsigned HOST_WIDE_INT ext_len = streamer_read_uhwi (ib);
 615       result = make_int_cst (len, ext_len);
 616     }
 617   else if (code == CALL_EXPR)
 618     {
 619       unsigned HOST_WIDE_INT nargs = streamer_read_uhwi (ib);
 620       return build_vl_exp (CALL_EXPR, nargs + 3);
 621     }
 622   else if (code == OMP_CLAUSE)
 623     {
 624       enum omp_clause_code subcode
 625         = (enum omp_clause_code) streamer_read_uhwi (ib);
 626       return build_omp_clause (UNKNOWN_LOCATION, subcode);
 627     }
 628   else
 629     {
 630       /* For all other nodes, materialize the tree with a raw
 631          make_node call.  */
 632       result = make_node (code);
 633     }
 634
 635 #ifdef LTO_STREAMER_DEBUG
 636   /* Store the original address of the tree as seen by the writer
 637      in RESULT's aux field.  This is useful when debugging streaming
 638      problems.  This way, a debugging session can be started on
 639      both writer and reader with a breakpoint using this address
 640      value in both.  */
 641   lto_orig_address_map (result, (intptr_t) orig_address_in_writer);
 642 #endif
 643
 644   return result;
 645 }
 646
 647
 648 /* Read all pointer fields in the TS_COMMON structure of EXPR from input
 649    block IB.  DATA_IN contains tables and descriptors for the
 650    file being read.  */
 651
 652
 653 static void
 654 lto_input_ts_common_tree_pointers (struct lto_input_block *ib,
 655                                    struct data_in *data_in, tree expr)
 656 {
 657   if (TREE_CODE (expr) != IDENTIFIER_NODE)
 658     TREE_TYPE (expr) = stream_read_tree (ib, data_in);
 659 }
 660
 661
 662 /* Read all pointer fields in the TS_VECTOR structure of EXPR from input
 663    block IB.  DATA_IN contains tables and descriptors for the
 664    file being read.  */
 665
 666 static void
 667 lto_input_ts_vector_tree_pointers (struct lto_input_block *ib,
 668                                    struct data_in *data_in, tree expr)
 669 {
 670   unsigned i;
 671   for (i = 0; i < VECTOR_CST_NELTS (expr); ++i)
 672     VECTOR_CST_ELT (expr, i) = stream_read_tree (ib, data_in);
 673 }
 674
 675
 676 /* Read all pointer fields in the TS_COMPLEX structure of EXPR from input
 677    block IB.  DATA_IN contains tables and descriptors for the
 678    file being read.  */
 679
 680 static void
 681 lto_input_ts_complex_tree_pointers (struct lto_input_block *ib,
 682                                     struct data_in *data_in, tree expr)
 683 {
 684   TREE_REALPART (expr) = stream_read_tree (ib, data_in);
 685   TREE_IMAGPART (expr) = stream_read_tree (ib, data_in);
 686 }
 687
 688
 689 /* Read all pointer fields in the TS_DECL_MINIMAL structure of EXPR
 690    from input block IB.  DATA_IN contains tables and descriptors for the
 691    file being read.  */
 692
 693 static void
 694 lto_input_ts_decl_minimal_tree_pointers (struct lto_input_block *ib,
 695                                          struct data_in *data_in, tree expr)
 696 {
 697   DECL_NAME (expr) = stream_read_tree (ib, data_in);
 698   DECL_CONTEXT (expr) = stream_read_tree (ib, data_in);
 699 }
 700
 701
 702 /* Read all pointer fields in the TS_DECL_COMMON structure of EXPR from
 703    input block IB.  DATA_IN contains tables and descriptors for the
 704    file being read.  */
 705
 706 static void
 707 lto_input_ts_decl_common_tree_pointers (struct lto_input_block *ib,
 708                                         struct data_in *data_in, tree expr)
 709 {
 710   DECL_SIZE (expr) = stream_read_tree (ib, data_in);
 711   DECL_SIZE_UNIT (expr) = stream_read_tree (ib, data_in);
 712   DECL_ATTRIBUTES (expr) = stream_read_tree (ib, data_in);
 713
 714   /* Do not stream DECL_ABSTRACT_ORIGIN.  We cannot handle debug information
 715      for early inlining so drop it on the floor instead of ICEing in
 716      dwarf2out.c.  */
 717
 718   if ((TREE_CODE (expr) == VAR_DECL
 719        || TREE_CODE (expr) == PARM_DECL)
 720       && DECL_HAS_VALUE_EXPR_P (expr))
 721     SET_DECL_VALUE_EXPR (expr, stream_read_tree (ib, data_in));
 722
 723   if (TREE_CODE (expr) == VAR_DECL)
 724     {
 725       tree dexpr = stream_read_tree (ib, data_in);
 726       if (dexpr)
 727         SET_DECL_DEBUG_EXPR (expr, dexpr);
 728     }
 729 }
 730
 731
 732 /* Read all pointer fields in the TS_DECL_NON_COMMON structure of
 733    EXPR from input block IB.  DATA_IN contains tables and descriptors for the
 734    file being read.  */
 735
 736 static void
 737 lto_input_ts_decl_non_common_tree_pointers (struct lto_input_block *ib,
 738                                             struct data_in *data_in, tree expr)
 739 {
 740   if (TREE_CODE (expr) == TYPE_DECL)
 741     DECL_ORIGINAL_TYPE (expr) = stream_read_tree (ib, data_in);
 742 }
 743
 744
 745 /* Read all pointer fields in the TS_DECL_WITH_VIS structure of EXPR
 746    from input block IB.  DATA_IN contains tables and descriptors for the
 747    file being read.  */
 748
 749 static void
 750 lto_input_ts_decl_with_vis_tree_pointers (struct lto_input_block *ib,
 751                                           struct data_in *data_in, tree expr)
 752 {
 753   tree id;
 754
 755   id = stream_read_tree (ib, data_in);
 756   if (id)
 757     {
 758       gcc_assert (TREE_CODE (id) == IDENTIFIER_NODE);
 759       SET_DECL_ASSEMBLER_NAME (expr, id);
 760     }
 761 }
 762
 763
 764 /* Read all pointer fields in the TS_FIELD_DECL structure of EXPR from
 765    input block IB.  DATA_IN contains tables and descriptors for the
 766    file being read.  */
 767
 768 static void
 769 lto_input_ts_field_decl_tree_pointers (struct lto_input_block *ib,
 770                                        struct data_in *data_in, tree expr)
 771 {
 772   DECL_FIELD_OFFSET (expr) = stream_read_tree (ib, data_in);
 773   DECL_BIT_FIELD_TYPE (expr) = stream_read_tree (ib, data_in);
 774   DECL_BIT_FIELD_REPRESENTATIVE (expr) = stream_read_tree (ib, data_in);
 775   DECL_FIELD_BIT_OFFSET (expr) = stream_read_tree (ib, data_in);
 776   DECL_FCONTEXT (expr) = stream_read_tree (ib, data_in);
 777 }
 778
 779
 780 /* Read all pointer fields in the TS_FUNCTION_DECL structure of EXPR
 781    from input block IB.  DATA_IN contains tables and descriptors for the
 782    file being read.  */
 783
 784 static void
 785 lto_input_ts_function_decl_tree_pointers (struct lto_input_block *ib,
 786                                           struct data_in *data_in, tree expr)
 787 {
 788   DECL_VINDEX (expr) = stream_read_tree (ib, data_in);
 789   /* DECL_STRUCT_FUNCTION is loaded on demand by cgraph_get_body.  */
 790   DECL_FUNCTION_PERSONALITY (expr) = stream_read_tree (ib, data_in);
 791 #ifndef ACCEL_COMPILER
 792   DECL_FUNCTION_SPECIFIC_TARGET (expr) = stream_read_tree (ib, data_in);
 793 #endif
 794   DECL_FUNCTION_SPECIFIC_OPTIMIZATION (expr) = stream_read_tree (ib, data_in);
 795
 796   /* If the file contains a function with an EH personality set,
 797      then it was compiled with -fexceptions.  In that case, initialize
 798      the backend EH machinery.  */
 799   if (DECL_FUNCTION_PERSONALITY (expr))
 800     lto_init_eh ();
 801 }
 802
 803
 804 /* Read all pointer fields in the TS_TYPE_COMMON structure of EXPR from
 805    input block IB.  DATA_IN contains tables and descriptors for the file
 806    being read.  */
 807
 808 static void
 809 lto_input_ts_type_common_tree_pointers (struct lto_input_block *ib,
 810                                         struct data_in *data_in, tree expr)
 811 {
 812   TYPE_SIZE (expr) = stream_read_tree (ib, data_in);
 813   TYPE_SIZE_UNIT (expr) = stream_read_tree (ib, data_in);
 814   TYPE_ATTRIBUTES (expr) = stream_read_tree (ib, data_in);
 815   TYPE_NAME (expr) = stream_read_tree (ib, data_in);
 816   /* Do not stream TYPE_POINTER_TO or TYPE_REFERENCE_TO.  They will be
 817      reconstructed during fixup.  */
 818   /* Do not stream TYPE_NEXT_VARIANT, we reconstruct the variant lists
 819      during fixup.  */
 820   TYPE_MAIN_VARIANT (expr) = stream_read_tree (ib, data_in);
 821   TYPE_CONTEXT (expr) = stream_read_tree (ib, data_in);
 822   /* TYPE_CANONICAL gets re-computed during type merging.  */
 823   TYPE_CANONICAL (expr) = NULL_TREE;
 824   TYPE_STUB_DECL (expr) = stream_read_tree (ib, data_in);
 825 }
 826
 827 /* Read all pointer fields in the TS_TYPE_NON_COMMON structure of EXPR
 828    from input block IB.  DATA_IN contains tables and descriptors for the
 829    file being read.  */
 830
 831 static void
 832 lto_input_ts_type_non_common_tree_pointers (struct lto_input_block *ib,
 833                                             struct data_in *data_in,
 834                                             tree expr)
 835 {
 836   if (TREE_CODE (expr) == ENUMERAL_TYPE)
 837     TYPE_VALUES (expr) = stream_read_tree (ib, data_in);
 838   else if (TREE_CODE (expr) == ARRAY_TYPE)
 839     TYPE_DOMAIN (expr) = stream_read_tree (ib, data_in);
 840   else if (RECORD_OR_UNION_TYPE_P (expr))
 841     TYPE_FIELDS (expr) = streamer_read_chain (ib, data_in);
 842   else if (TREE_CODE (expr) == FUNCTION_TYPE
 843            || TREE_CODE (expr) == METHOD_TYPE)
 844     TYPE_ARG_TYPES (expr) = stream_read_tree (ib, data_in);
 845
 846   if (!POINTER_TYPE_P (expr))
 847     TYPE_MINVAL (expr) = stream_read_tree (ib, data_in);
 848   TYPE_MAXVAL (expr) = stream_read_tree (ib, data_in);
 849   if (RECORD_OR_UNION_TYPE_P (expr))
 850     TYPE_BINFO (expr) = stream_read_tree (ib, data_in);
 851 }
 852
 853
 854 /* Read all pointer fields in the TS_LIST structure of EXPR from input
 855    block IB.  DATA_IN contains tables and descriptors for the
 856    file being read.  */
 857
 858 static void
 859 lto_input_ts_list_tree_pointers (struct lto_input_block *ib,
 860                                  struct data_in *data_in, tree expr)
 861 {
 862   TREE_PURPOSE (expr) = stream_read_tree (ib, data_in);
 863   TREE_VALUE (expr) = stream_read_tree (ib, data_in);
 864   TREE_CHAIN (expr) = stream_read_tree (ib, data_in);
 865 }
 866
 867
 868 /* Read all pointer fields in the TS_VEC structure of EXPR from input
 869    block IB.  DATA_IN contains tables and descriptors for the
 870    file being read.  */
 871
 872 static void
 873 lto_input_ts_vec_tree_pointers (struct lto_input_block *ib,
 874                                 struct data_in *data_in, tree expr)
 875 {
 876   int i;
 877
 878   /* Note that TREE_VEC_LENGTH was read by streamer_alloc_tree to
 879      instantiate EXPR.  */
 880   for (i = 0; i < TREE_VEC_LENGTH (expr); i++)
 881     TREE_VEC_ELT (expr, i) = stream_read_tree (ib, data_in);
 882 }
 883
 884
 885 /* Read all pointer fields in the TS_EXP structure of EXPR from input
 886    block IB.  DATA_IN contains tables and descriptors for the
 887    file being read.  */
 888
 889
 890 static void
 891 lto_input_ts_exp_tree_pointers (struct lto_input_block *ib,
 892                                 struct data_in *data_in, tree expr)
 893 {
 894   int i;
 895   tree block;
 896
 897   for (i = 0; i < TREE_OPERAND_LENGTH (expr); i++)
 898     TREE_OPERAND (expr, i) = stream_read_tree (ib, data_in);
 899
 900   block = stream_read_tree (ib, data_in);
 901
 902   /* TODO: Block is stored in the locus information.  It may make more sense to
 903      to make it go via the location cache.  */
 904   if (block)
 905     {
 906       data_in->location_cache.apply_location_cache ();
 907       TREE_SET_BLOCK (expr, block);
 908     }
 909 }
 910
 911
 912 /* Read all pointer fields in the TS_BLOCK structure of EXPR from input
 913    block IB.  DATA_IN contains tables and descriptors for the
 914    file being read.  */
 915
 916 static void
 917 lto_input_ts_block_tree_pointers (struct lto_input_block *ib,
 918                                   struct data_in *data_in, tree expr)
 919 {
 920   BLOCK_VARS (expr) = streamer_read_chain (ib, data_in);
 921
 922   BLOCK_SUPERCONTEXT (expr) = stream_read_tree (ib, data_in);
 923
 924   /* Stream BLOCK_ABSTRACT_ORIGIN and BLOCK_SOURCE_LOCATION for
 925      the limited cases we can handle - those that represent inlined
 926      function scopes.  For the rest them on the floor instead of ICEing in
 927      dwarf2out.c.  */
 928   BLOCK_ABSTRACT_ORIGIN (expr) = stream_read_tree (ib, data_in);
 929   /* Do not stream BLOCK_NONLOCALIZED_VARS.  We cannot handle debug information
 930      for early inlined BLOCKs so drop it on the floor instead of ICEing in
 931      dwarf2out.c.  */
 932
 933   /* BLOCK_FRAGMENT_ORIGIN and BLOCK_FRAGMENT_CHAIN is not live at LTO
 934      streaming time.  */
 935
 936   /* We re-compute BLOCK_SUBBLOCKS of our parent here instead
 937      of streaming it.  For non-BLOCK BLOCK_SUPERCONTEXTs we still
 938      stream the child relationship explicitly.  */
 939   if (BLOCK_SUPERCONTEXT (expr)
 940       && TREE_CODE (BLOCK_SUPERCONTEXT (expr)) == BLOCK)
 941     {
 942       BLOCK_CHAIN (expr) = BLOCK_SUBBLOCKS (BLOCK_SUPERCONTEXT (expr));
 943       BLOCK_SUBBLOCKS (BLOCK_SUPERCONTEXT (expr)) = expr;
 944     }
 945
 946   /* The global block is rooted at the TU decl.  Hook it here to
 947      avoid the need to stream in this block during WPA time.  */
 948   else if (BLOCK_SUPERCONTEXT (expr)
 949            && TREE_CODE (BLOCK_SUPERCONTEXT (expr)) == TRANSLATION_UNIT_DECL)
 950     DECL_INITIAL (BLOCK_SUPERCONTEXT (expr)) = expr;
 951
 952   /* The function-level block is connected at the time we read in
 953      function bodies for the same reason.  */
 954 }
 955
 956
 957 /* Read all pointer fields in the TS_BINFO structure of EXPR from input
 958    block IB.  DATA_IN contains tables and descriptors for the
 959    file being read.  */
 960
 961 static void
 962 lto_input_ts_binfo_tree_pointers (struct lto_input_block *ib,
 963                                   struct data_in *data_in, tree expr)
 964 {
 965   unsigned i;
 966   tree t;
 967
 968   /* Note that the number of slots in EXPR was read in
 969      streamer_alloc_tree when instantiating EXPR.  However, the
 970      vector is empty so we cannot rely on vec::length to know how many
 971      elements to read.  So, this list is emitted as a 0-terminated
 972      list on the writer side.  */
 973   do
 974     {
 975       t = stream_read_tree (ib, data_in);
 976       if (t)
 977         BINFO_BASE_BINFOS (expr)->quick_push (t);
 978     }
 979   while (t);
 980
 981   BINFO_OFFSET (expr) = stream_read_tree (ib, data_in);
 982   BINFO_VTABLE (expr) = stream_read_tree (ib, data_in);
 983   BINFO_VPTR_FIELD (expr) = stream_read_tree (ib, data_in);
 984
 985   /* The vector of BINFO_BASE_ACCESSES is pre-allocated during
 986      unpacking the bitfield section.  */
 987   for (i = 0; i < vec_safe_length (BINFO_BASE_ACCESSES (expr)); i++)
 988     {
 989       tree a = stream_read_tree (ib, data_in);
 990       (*BINFO_BASE_ACCESSES (expr))[i] = a;
 991     }
 992   /* Do not walk BINFO_INHERITANCE_CHAIN, BINFO_SUBVTT_INDEX
 993      and BINFO_VPTR_INDEX; these are used by C++ FE only.  */
 994 }
 995
 996
 997 /* Read all pointer fields in the TS_CONSTRUCTOR structure of EXPR from
 998    input block IB.  DATA_IN contains tables and descriptors for the
 999    file being read.  */
1000
1001 static void
1002 lto_input_ts_constructor_tree_pointers (struct lto_input_block *ib,
1003                                         struct data_in *data_in, tree expr)
1004 {
1005   unsigned i;
1006
1007   for (i = 0; i < CONSTRUCTOR_NELTS (expr); i++)
1008     {
1009       constructor_elt e;
1010       e.index = stream_read_tree (ib, data_in);
1011       e.value = stream_read_tree (ib, data_in);
1012       (*CONSTRUCTOR_ELTS (expr))[i] = e;
1013     }
1014 }
1015
1016
1017 /* Read all pointer fields in the TS_OMP_CLAUSE structure of EXPR from
1018    input block IB.  DATA_IN contains tables and descriptors for the
1019    file being read.  */
1020
1021 static void
1022 lto_input_ts_omp_clause_tree_pointers (struct lto_input_block *ib,
1023                                        struct data_in *data_in, tree expr)
1024 {
1025   int i;
1026
1027   for (i = 0; i < omp_clause_num_ops[OMP_CLAUSE_CODE (expr)]; i++)
1028     OMP_CLAUSE_OPERAND (expr, i) = stream_read_tree (ib, data_in);
1029   OMP_CLAUSE_CHAIN (expr) = stream_read_tree (ib, data_in);
1030 }
1031
1032
1033 /* Read all pointer fields in EXPR from input block IB.  DATA_IN
1034    contains tables and descriptors for the file being read.  */
1035
1036 void
1037 streamer_read_tree_body (struct lto_input_block *ib, struct data_in *data_in,
1038                          tree expr)
1039 {
1040   enum tree_code code;
1041
1042   code = TREE_CODE (expr);
1043
1044   if (CODE_CONTAINS_STRUCT (code, TS_TYPED))
1045     lto_input_ts_common_tree_pointers (ib, data_in, expr);
1046
1047   if (CODE_CONTAINS_STRUCT (code, TS_VECTOR))
1048     lto_input_ts_vector_tree_pointers (ib, data_in, expr);
1049
1050   if (CODE_CONTAINS_STRUCT (code, TS_COMPLEX))
1051     lto_input_ts_complex_tree_pointers (ib, data_in, expr);
1052
1053   if (CODE_CONTAINS_STRUCT (code, TS_DECL_MINIMAL))
1054     lto_input_ts_decl_minimal_tree_pointers (ib, data_in, expr);
1055
1056   if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
1057     lto_input_ts_decl_common_tree_pointers (ib, data_in, expr);
1058
1059   if (CODE_CONTAINS_STRUCT (code, TS_DECL_NON_COMMON))
1060     lto_input_ts_decl_non_common_tree_pointers (ib, data_in, expr);
1061
1062   if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS))
1063     lto_input_ts_decl_with_vis_tree_pointers (ib, data_in, expr);
1064
1065   if (CODE_CONTAINS_STRUCT (code, TS_FIELD_DECL))
1066     lto_input_ts_field_decl_tree_pointers (ib, data_in, expr);
1067
1068   if (CODE_CONTAINS_STRUCT (code, TS_FUNCTION_DECL))
1069     lto_input_ts_function_decl_tree_pointers (ib, data_in, expr);
1070
1071   if (CODE_CONTAINS_STRUCT (code, TS_TYPE_COMMON))
1072     lto_input_ts_type_common_tree_pointers (ib, data_in, expr);
1073
1074   if (CODE_CONTAINS_STRUCT (code, TS_TYPE_NON_COMMON))
1075     lto_input_ts_type_non_common_tree_pointers (ib, data_in, expr);
1076
1077   if (CODE_CONTAINS_STRUCT (code, TS_LIST))
1078     lto_input_ts_list_tree_pointers (ib, data_in, expr);
1079
1080   if (CODE_CONTAINS_STRUCT (code, TS_VEC))
1081     lto_input_ts_vec_tree_pointers (ib, data_in, expr);
1082
1083   if (CODE_CONTAINS_STRUCT (code, TS_EXP))
1084     lto_input_ts_exp_tree_pointers (ib, data_in, expr);
1085
1086   if (CODE_CONTAINS_STRUCT (code, TS_BLOCK))
1087     lto_input_ts_block_tree_pointers (ib, data_in, expr);
1088
1089   if (CODE_CONTAINS_STRUCT (code, TS_BINFO))
1090     lto_input_ts_binfo_tree_pointers (ib, data_in, expr);
1091
1092   if (CODE_CONTAINS_STRUCT (code, TS_CONSTRUCTOR))
1093     lto_input_ts_constructor_tree_pointers (ib, data_in, expr);
1094
1095   if (code == OMP_CLAUSE)
1096     lto_input_ts_omp_clause_tree_pointers (ib, data_in, expr);
1097 }
1098
1099
1100 /* Read an index IX from input block IB and return the tree node at
1101    DATA_IN->FILE_DATA->GLOBALS_INDEX[IX].  */
1102
1103 tree
1104 streamer_get_pickled_tree (struct lto_input_block *ib, struct data_in *data_in)
1105 {
1106   unsigned HOST_WIDE_INT ix;
1107   tree result;
1108   enum LTO_tags expected_tag;
1109
1110   ix = streamer_read_uhwi (ib);
1111   expected_tag = streamer_read_enum (ib, LTO_tags, LTO_NUM_TAGS);
1112
1113   result = streamer_tree_cache_get_tree (data_in->reader_cache, ix);
1114   gcc_assert (result
1115               && TREE_CODE (result) == lto_tag_to_tree_code (expected_tag));
1116
1117   return result;
1118 }
1119
1120
1121 /* Read a code and class from input block IB and return the
1122    corresponding builtin.  DATA_IN is as in stream_read_tree.  */
1123
1124 tree
1125 streamer_get_builtin_tree (struct lto_input_block *ib, struct data_in *data_in)
1126 {
1127   enum built_in_class fclass;
1128   enum built_in_function fcode;
1129   const char *asmname;
1130   tree result;
1131
1132   fclass = streamer_read_enum (ib, built_in_class, BUILT_IN_LAST);
1133   gcc_assert (fclass == BUILT_IN_NORMAL || fclass == BUILT_IN_MD);
1134
1135   fcode = (enum built_in_function) streamer_read_uhwi (ib);
1136
1137   if (fclass == BUILT_IN_NORMAL)
1138     {
1139       if (fcode >= END_BUILTINS)
1140         fatal_error (input_location,
1141                      "machine independent builtin code out of range");
1142       result = builtin_decl_explicit (fcode);
1143       if (!result
1144           && fcode > BEGIN_CHKP_BUILTINS
1145           && fcode < END_CHKP_BUILTINS)
1146         {
1147           fcode = (enum built_in_function) (fcode - BEGIN_CHKP_BUILTINS - 1);
1148           result = builtin_decl_explicit (fcode);
1149           result = chkp_maybe_clone_builtin_fndecl (result);
1150         }
1151       gcc_assert (result);
1152     }
1153   else if (fclass == BUILT_IN_MD)
1154     {
1155       result = targetm.builtin_decl (fcode, true);
1156       if (!result || result == error_mark_node)
1157         fatal_error (input_location, "target specific builtin not available");
1158     }
1159   else
1160     gcc_unreachable ();
1161
1162   asmname = streamer_read_string (data_in, ib);
1163   if (asmname)
1164     set_builtin_user_assembler_name (result, asmname);
1165
1166   streamer_tree_cache_append (data_in->reader_cache, result, 0);
1167
1168   return result;
1169 }