gcc/tree-streamer-in.c

   1 /* Routines for reading trees from a file stream.
   2
   3    Copyright (C) 2011-2019 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 "gomp-constants.h"
  34 #include "stringpool.h"
  35 #include "attribs.h"
  36 #include "asan.h"
  37 #include "opts.h"
  38
  39
  40 /* Read a STRING_CST from the string table in DATA_IN using input
  41    block IB.  */
  42
  43 tree
  44 streamer_read_string_cst (struct data_in *data_in, struct lto_input_block *ib)
  45 {
  46   unsigned int len;
  47   const char * ptr;
  48
  49   ptr = streamer_read_indexed_string (data_in, ib, &len);
  50   if (!ptr)
  51     return NULL;
  52   return build_string (len, ptr);
  53 }
  54
  55
  56 /* Read an IDENTIFIER from the string table in DATA_IN using input
  57    block IB.  */
  58
  59 static tree
  60 input_identifier (struct data_in *data_in, struct lto_input_block *ib)
  61 {
  62   unsigned int len;
  63   const char *ptr;
  64
  65   ptr = streamer_read_indexed_string (data_in, ib, &len);
  66   if (!ptr)
  67     return NULL;
  68   return get_identifier_with_length (ptr, len);
  69 }
  70
  71
  72 /* Read a chain of tree nodes from input block IB. DATA_IN contains
  73    tables and descriptors for the file being read.  */
  74
  75 tree
  76 streamer_read_chain (struct lto_input_block *ib, struct data_in *data_in)
  77 {
  78   tree first, prev, curr;
  79
  80   /* The chain is written as NULL terminated list of trees.  */
  81   first = prev = NULL_TREE;
  82   do
  83     {
  84       curr = stream_read_tree (ib, data_in);
  85       if (prev)
  86         TREE_CHAIN (prev) = curr;
  87       else
  88         first = curr;
  89
  90       prev = curr;
  91     }
  92   while (curr);
  93
  94   return first;
  95 }
  96
  97
  98 /* Unpack all the non-pointer fields of the TS_BASE structure of
  99    expression EXPR from bitpack BP.  */
 100
 101 static inline void
 102 unpack_ts_base_value_fields (struct bitpack_d *bp, tree expr)
 103 {
 104   /* Note that the code for EXPR has already been unpacked to create EXPR in
 105      streamer_alloc_tree.  */
 106   if (!TYPE_P (expr))
 107     {
 108       TREE_SIDE_EFFECTS (expr) = (unsigned) bp_unpack_value (bp, 1);
 109       TREE_CONSTANT (expr) = (unsigned) bp_unpack_value (bp, 1);
 110       TREE_READONLY (expr) = (unsigned) bp_unpack_value (bp, 1);
 111
 112       /* TREE_PUBLIC is used on types to indicate that the type
 113          has a TYPE_CACHED_VALUES vector.  This is not streamed out,
 114          so we skip it here.  */
 115       TREE_PUBLIC (expr) = (unsigned) bp_unpack_value (bp, 1);
 116     }
 117   else
 118     bp_unpack_value (bp, 4);
 119   TREE_ADDRESSABLE (expr) = (unsigned) bp_unpack_value (bp, 1);
 120   TREE_THIS_VOLATILE (expr) = (unsigned) bp_unpack_value (bp, 1);
 121   if (DECL_P (expr))
 122     {
 123       DECL_UNSIGNED (expr) = (unsigned) bp_unpack_value (bp, 1);
 124       DECL_NAMELESS (expr) = (unsigned) bp_unpack_value (bp, 1);
 125     }
 126   else if (TYPE_P (expr))
 127     TYPE_UNSIGNED (expr) = (unsigned) bp_unpack_value (bp, 1);
 128   else
 129     bp_unpack_value (bp, 1);
 130   TREE_ASM_WRITTEN (expr) = (unsigned) bp_unpack_value (bp, 1);
 131   if (TYPE_P (expr))
 132     TYPE_ARTIFICIAL (expr) = (unsigned) bp_unpack_value (bp, 1);
 133   else
 134     TREE_NO_WARNING (expr) = (unsigned) bp_unpack_value (bp, 1);
 135   TREE_NOTHROW (expr) = (unsigned) bp_unpack_value (bp, 1);
 136   TREE_STATIC (expr) = (unsigned) bp_unpack_value (bp, 1);
 137   if (TREE_CODE (expr) != TREE_BINFO)
 138     TREE_PRIVATE (expr) = (unsigned) bp_unpack_value (bp, 1);
 139   else
 140     bp_unpack_value (bp, 1);
 141   TREE_PROTECTED (expr) = (unsigned) bp_unpack_value (bp, 1);
 142   TREE_DEPRECATED (expr) = (unsigned) bp_unpack_value (bp, 1);
 143   if (TYPE_P (expr))
 144     {
 145       if (AGGREGATE_TYPE_P (expr))
 146         TYPE_REVERSE_STORAGE_ORDER (expr) = (unsigned) bp_unpack_value (bp, 1);
 147       else
 148         TYPE_SATURATING (expr) = (unsigned) bp_unpack_value (bp, 1);
 149       TYPE_ADDR_SPACE (expr) = (unsigned) bp_unpack_value (bp, 8);
 150     }
 151   else if (TREE_CODE (expr) == BIT_FIELD_REF || TREE_CODE (expr) == MEM_REF)
 152     {
 153       REF_REVERSE_STORAGE_ORDER (expr) = (unsigned) bp_unpack_value (bp, 1);
 154       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 if (TREE_CODE (expr) == CALL_EXPR)
 162     {
 163       CALL_EXPR_BY_DESCRIPTOR (expr) = (unsigned) bp_unpack_value (bp, 1);
 164       bp_unpack_value (bp, 8);
 165     }
 166   else
 167     bp_unpack_value (bp, 9);
 168 }
 169
 170
 171 /* Unpack all the non-pointer fields of the TS_INT_CST structure of
 172    expression EXPR from bitpack BP.  */
 173
 174 static void
 175 unpack_ts_int_cst_value_fields (struct bitpack_d *bp, tree expr)
 176 {
 177   int i;
 178   for (i = 0; i < TREE_INT_CST_EXT_NUNITS (expr); i++)
 179     TREE_INT_CST_ELT (expr, i) = bp_unpack_var_len_int (bp);
 180 }
 181
 182
 183 /* Unpack all the non-pointer fields of the TS_REAL_CST structure of
 184    expression EXPR from bitpack BP.  */
 185
 186 static void
 187 unpack_ts_real_cst_value_fields (struct bitpack_d *bp, tree expr)
 188 {
 189   unsigned i;
 190   REAL_VALUE_TYPE r;
 191   REAL_VALUE_TYPE *rp;
 192
 193   /* Clear all bits of the real value type so that we can later do
 194      bitwise comparisons to see if two values are the same.  */
 195   memset (&r, 0, sizeof r);
 196   r.cl = (unsigned) bp_unpack_value (bp, 2);
 197   r.decimal = (unsigned) bp_unpack_value (bp, 1);
 198   r.sign = (unsigned) bp_unpack_value (bp, 1);
 199   r.signalling = (unsigned) bp_unpack_value (bp, 1);
 200   r.canonical = (unsigned) bp_unpack_value (bp, 1);
 201   r.uexp = (unsigned) bp_unpack_value (bp, EXP_BITS);
 202   for (i = 0; i < SIGSZ; i++)
 203     r.sig[i] = (unsigned long) bp_unpack_value (bp, HOST_BITS_PER_LONG);
 204
 205   rp = ggc_alloc<real_value> ();
 206   memcpy (rp, &r, sizeof (REAL_VALUE_TYPE));
 207   TREE_REAL_CST_PTR (expr) = rp;
 208 }
 209
 210
 211 /* Unpack all the non-pointer fields of the TS_FIXED_CST structure of
 212    expression EXPR from bitpack BP.  */
 213
 214 static void
 215 unpack_ts_fixed_cst_value_fields (struct bitpack_d *bp, tree expr)
 216 {
 217   FIXED_VALUE_TYPE *fp = ggc_alloc<fixed_value> ();
 218   fp->mode = as_a <scalar_mode> (bp_unpack_machine_mode (bp));
 219   fp->data.low = bp_unpack_var_len_int (bp);
 220   fp->data.high = bp_unpack_var_len_int (bp);
 221   TREE_FIXED_CST_PTR (expr) = fp;
 222 }
 223
 224 /* Unpack all the non-pointer fields of the TS_DECL_COMMON structure
 225    of expression EXPR from bitpack BP.  */
 226
 227 static void
 228 unpack_ts_decl_common_value_fields (struct bitpack_d *bp, tree expr)
 229 {
 230   SET_DECL_MODE (expr, bp_unpack_machine_mode (bp));
 231   DECL_NONLOCAL (expr) = (unsigned) bp_unpack_value (bp, 1);
 232   DECL_VIRTUAL_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 233   DECL_IGNORED_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 234   DECL_ABSTRACT_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 235   DECL_ARTIFICIAL (expr) = (unsigned) bp_unpack_value (bp, 1);
 236   DECL_USER_ALIGN (expr) = (unsigned) bp_unpack_value (bp, 1);
 237   DECL_PRESERVE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 238   DECL_EXTERNAL (expr) = (unsigned) bp_unpack_value (bp, 1);
 239   DECL_GIMPLE_REG_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 240   SET_DECL_ALIGN (expr, (unsigned) bp_unpack_var_len_unsigned (bp));
 241 #ifdef ACCEL_COMPILER
 242   if (DECL_ALIGN (expr) > targetm.absolute_biggest_alignment)
 243     SET_DECL_ALIGN (expr, targetm.absolute_biggest_alignment);
 244 #endif
 245   if (TREE_CODE (expr) == LABEL_DECL)
 246     {
 247       EH_LANDING_PAD_NR (expr) = (int) bp_unpack_var_len_unsigned (bp);
 248
 249       /* Always assume an initial value of -1 for LABEL_DECL_UID to
 250          force gimple_set_bb to recreate label_to_block_map.  */
 251       LABEL_DECL_UID (expr) = -1;
 252     }
 253
 254   if (TREE_CODE (expr) == FIELD_DECL)
 255     {
 256       DECL_PACKED (expr) = (unsigned) bp_unpack_value (bp, 1);
 257       DECL_NONADDRESSABLE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 258       DECL_PADDING_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 259       expr->decl_common.off_align = bp_unpack_value (bp, 8);
 260     }
 261
 262   if (VAR_P (expr))
 263     {
 264       DECL_HAS_DEBUG_EXPR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 265       DECL_NONLOCAL_FRAME (expr) = (unsigned) bp_unpack_value (bp, 1);
 266     }
 267
 268   if (TREE_CODE (expr) == RESULT_DECL
 269       || TREE_CODE (expr) == PARM_DECL
 270       || VAR_P (expr))
 271     {
 272       DECL_BY_REFERENCE (expr) = (unsigned) bp_unpack_value (bp, 1);
 273       if (VAR_P (expr) || TREE_CODE (expr) == PARM_DECL)
 274         DECL_HAS_VALUE_EXPR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 275     }
 276 }
 277
 278
 279 /* Unpack all the non-pointer fields of the TS_DECL_WRTL structure
 280    of expression EXPR from bitpack BP.  */
 281
 282 static void
 283 unpack_ts_decl_wrtl_value_fields (struct bitpack_d *bp, tree expr)
 284 {
 285   DECL_REGISTER (expr) = (unsigned) bp_unpack_value (bp, 1);
 286 }
 287
 288
 289 /* Unpack all the non-pointer fields of the TS_DECL_WITH_VIS structure
 290    of expression EXPR from bitpack BP.  */
 291
 292 static void
 293 unpack_ts_decl_with_vis_value_fields (struct bitpack_d *bp, tree expr)
 294 {
 295   DECL_COMMON (expr) = (unsigned) bp_unpack_value (bp, 1);
 296   DECL_DLLIMPORT_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 297   DECL_WEAK (expr) = (unsigned) bp_unpack_value (bp, 1);
 298   DECL_SEEN_IN_BIND_EXPR_P (expr) = (unsigned) bp_unpack_value (bp,  1);
 299   DECL_COMDAT (expr) = (unsigned) bp_unpack_value (bp,  1);
 300   DECL_VISIBILITY (expr) = (enum symbol_visibility) bp_unpack_value (bp,  2);
 301   DECL_VISIBILITY_SPECIFIED (expr) = (unsigned) bp_unpack_value (bp,  1);
 302
 303   if (VAR_P (expr))
 304     {
 305       DECL_HARD_REGISTER (expr) = (unsigned) bp_unpack_value (bp, 1);
 306       DECL_IN_CONSTANT_POOL (expr) = (unsigned) bp_unpack_value (bp, 1);
 307     }
 308
 309   if (TREE_CODE (expr) == FUNCTION_DECL)
 310     {
 311       DECL_FINAL_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 312       DECL_CXX_CONSTRUCTOR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 313       DECL_CXX_DESTRUCTOR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 314     }
 315 }
 316
 317
 318 /* Unpack all the non-pointer fields of the TS_FUNCTION_DECL structure
 319    of expression EXPR from bitpack BP.  */
 320
 321 static void
 322 unpack_ts_function_decl_value_fields (struct bitpack_d *bp, tree expr)
 323 {
 324   DECL_BUILT_IN_CLASS (expr) = bp_unpack_enum (bp, built_in_class,
 325                                                BUILT_IN_LAST);
 326   DECL_STATIC_CONSTRUCTOR (expr) = (unsigned) bp_unpack_value (bp, 1);
 327   DECL_STATIC_DESTRUCTOR (expr) = (unsigned) bp_unpack_value (bp, 1);
 328   DECL_UNINLINABLE (expr) = (unsigned) bp_unpack_value (bp, 1);
 329   DECL_POSSIBLY_INLINED (expr) = (unsigned) bp_unpack_value (bp, 1);
 330   DECL_IS_NOVOPS (expr) = (unsigned) bp_unpack_value (bp, 1);
 331   DECL_IS_RETURNS_TWICE (expr) = (unsigned) bp_unpack_value (bp, 1);
 332   DECL_IS_MALLOC (expr) = (unsigned) bp_unpack_value (bp, 1);
 333   DECL_IS_OPERATOR_NEW (expr) = (unsigned) bp_unpack_value (bp, 1);
 334   DECL_DECLARED_INLINE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 335   DECL_STATIC_CHAIN (expr) = (unsigned) bp_unpack_value (bp, 1);
 336   DECL_NO_INLINE_WARNING_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 337   DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT (expr)
 338                         = (unsigned) bp_unpack_value (bp, 1);
 339   DECL_NO_LIMIT_STACK (expr) = (unsigned) bp_unpack_value (bp, 1);
 340   DECL_DISREGARD_INLINE_LIMITS (expr) = (unsigned) bp_unpack_value (bp, 1);
 341   DECL_PURE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 342   DECL_LOOPING_CONST_OR_PURE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 343   if (DECL_BUILT_IN_CLASS (expr) != NOT_BUILT_IN)
 344     {
 345       DECL_FUNCTION_CODE (expr) = (enum built_in_function) bp_unpack_value (bp,
 346                                                                             12);
 347       if (DECL_BUILT_IN_CLASS (expr) == BUILT_IN_NORMAL
 348           && DECL_FUNCTION_CODE (expr) >= END_BUILTINS)
 349         fatal_error (input_location,
 350                      "machine independent builtin code out of range");
 351       else if (DECL_BUILT_IN_CLASS (expr) == BUILT_IN_MD)
 352         {
 353           tree result = targetm.builtin_decl (DECL_FUNCTION_CODE (expr), true);
 354           if (!result || result == error_mark_node)
 355             fatal_error (input_location,
 356                          "target specific builtin not available");
 357         }
 358     }
 359 }
 360
 361
 362 /* Unpack all the non-pointer fields of the TS_TYPE_COMMON structure
 363    of expression EXPR from bitpack BP.  */
 364
 365 static void
 366 unpack_ts_type_common_value_fields (struct bitpack_d *bp, tree expr)
 367 {
 368   machine_mode mode;
 369
 370   mode = bp_unpack_machine_mode (bp);
 371   SET_TYPE_MODE (expr, mode);
 372   TYPE_STRING_FLAG (expr) = (unsigned) bp_unpack_value (bp, 1);
 373   /* TYPE_NO_FORCE_BLK is private to stor-layout and need
 374      no streaming.  */
 375   TYPE_PACKED (expr) = (unsigned) bp_unpack_value (bp, 1);
 376   TYPE_RESTRICT (expr) = (unsigned) bp_unpack_value (bp, 1);
 377   TYPE_USER_ALIGN (expr) = (unsigned) bp_unpack_value (bp, 1);
 378   TYPE_READONLY (expr) = (unsigned) bp_unpack_value (bp, 1);
 379   if (RECORD_OR_UNION_TYPE_P (expr))
 380     {
 381       TYPE_TRANSPARENT_AGGR (expr) = (unsigned) bp_unpack_value (bp, 1);
 382       TYPE_FINAL_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 383     }
 384   else if (TREE_CODE (expr) == ARRAY_TYPE)
 385     TYPE_NONALIASED_COMPONENT (expr) = (unsigned) bp_unpack_value (bp, 1);
 386   if (AGGREGATE_TYPE_P (expr))
 387     TYPE_TYPELESS_STORAGE (expr) = (unsigned) bp_unpack_value (bp, 1);
 388   TYPE_EMPTY_P (expr) = (unsigned) bp_unpack_value (bp, 1);
 389   TYPE_PRECISION (expr) = bp_unpack_var_len_unsigned (bp);
 390   SET_TYPE_ALIGN (expr, bp_unpack_var_len_unsigned (bp));
 391 #ifdef ACCEL_COMPILER
 392   if (TYPE_ALIGN (expr) > targetm.absolute_biggest_alignment)
 393     SET_TYPE_ALIGN (expr, targetm.absolute_biggest_alignment);
 394 #endif
 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_NUMBER is recomputed.  */
 406   stream_input_location (&BLOCK_SOURCE_LOCATION (expr), bp, data_in);
 407 }
 408
 409 /* Unpack all the non-pointer fields of the TS_TRANSLATION_UNIT_DECL
 410    structure of expression EXPR from bitpack BP.  */
 411
 412 static void
 413 unpack_ts_translation_unit_decl_value_fields (struct data_in *data_in,
 414                                               struct bitpack_d *bp, tree expr)
 415 {
 416   TRANSLATION_UNIT_LANGUAGE (expr) = xstrdup (bp_unpack_string (data_in, bp));
 417   vec_safe_push (all_translation_units, expr);
 418 }
 419
 420
 421 /* Unpack all the non-pointer fields of the TS_OMP_CLAUSE
 422    structure of expression EXPR from bitpack BP.  */
 423
 424 static void
 425 unpack_ts_omp_clause_value_fields (struct data_in *data_in,
 426                                    struct bitpack_d *bp, tree expr)
 427 {
 428   stream_input_location (&OMP_CLAUSE_LOCATION (expr), bp, data_in);
 429   switch (OMP_CLAUSE_CODE (expr))
 430     {
 431     case OMP_CLAUSE_DEFAULT:
 432       OMP_CLAUSE_DEFAULT_KIND (expr)
 433         = bp_unpack_enum (bp, omp_clause_default_kind,
 434                           OMP_CLAUSE_DEFAULT_LAST);
 435       break;
 436     case OMP_CLAUSE_SCHEDULE:
 437       OMP_CLAUSE_SCHEDULE_KIND (expr)
 438         = bp_unpack_enum (bp, omp_clause_schedule_kind,
 439                           OMP_CLAUSE_SCHEDULE_LAST);
 440       break;
 441     case OMP_CLAUSE_DEPEND:
 442       OMP_CLAUSE_DEPEND_KIND (expr)
 443         = bp_unpack_enum (bp, omp_clause_depend_kind, OMP_CLAUSE_DEPEND_LAST);
 444       break;
 445     case OMP_CLAUSE_MAP:
 446       OMP_CLAUSE_SET_MAP_KIND (expr, bp_unpack_enum (bp, gomp_map_kind,
 447                                                      GOMP_MAP_LAST));
 448       break;
 449     case OMP_CLAUSE_PROC_BIND:
 450       OMP_CLAUSE_PROC_BIND_KIND (expr)
 451         = bp_unpack_enum (bp, omp_clause_proc_bind_kind,
 452                           OMP_CLAUSE_PROC_BIND_LAST);
 453       break;
 454     case OMP_CLAUSE_REDUCTION:
 455     case OMP_CLAUSE_TASK_REDUCTION:
 456     case OMP_CLAUSE_IN_REDUCTION:
 457       OMP_CLAUSE_REDUCTION_CODE (expr)
 458         = bp_unpack_enum (bp, tree_code, MAX_TREE_CODES);
 459       break;
 460     default:
 461       break;
 462     }
 463 }
 464
 465
 466 /* Read all the language-independent bitfield values for EXPR from IB.
 467    Return the partially unpacked bitpack so the caller can unpack any other
 468    bitfield values that the writer may have written.  */
 469
 470 void
 471 streamer_read_tree_bitfields (struct lto_input_block *ib,
 472                               struct data_in *data_in, tree expr)
 473 {
 474   enum tree_code code;
 475   struct bitpack_d bp;
 476
 477   /* Read the bitpack of non-pointer values from IB.  */
 478   bp = streamer_read_bitpack (ib);
 479
 480   /* The first word in BP contains the code of the tree that we
 481      are about to read.  */
 482   code = (enum tree_code) bp_unpack_value (&bp, 16);
 483   lto_tag_check (lto_tree_code_to_tag (code),
 484                  lto_tree_code_to_tag (TREE_CODE (expr)));
 485
 486   /* Note that all these functions are highly sensitive to changes in
 487      the types and sizes of each of the fields being packed.  */
 488   unpack_ts_base_value_fields (&bp, expr);
 489
 490   if (CODE_CONTAINS_STRUCT (code, TS_INT_CST))
 491     unpack_ts_int_cst_value_fields (&bp, expr);
 492
 493   if (CODE_CONTAINS_STRUCT (code, TS_REAL_CST))
 494     unpack_ts_real_cst_value_fields (&bp, expr);
 495
 496   if (CODE_CONTAINS_STRUCT (code, TS_FIXED_CST))
 497     unpack_ts_fixed_cst_value_fields (&bp, expr);
 498
 499   if (CODE_CONTAINS_STRUCT (code, TS_DECL_MINIMAL))
 500     stream_input_location (&DECL_SOURCE_LOCATION (expr), &bp, data_in);
 501
 502   if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
 503     unpack_ts_decl_common_value_fields (&bp, expr);
 504
 505   if (CODE_CONTAINS_STRUCT (code, TS_DECL_WRTL))
 506     unpack_ts_decl_wrtl_value_fields (&bp, expr);
 507
 508   if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS))
 509     unpack_ts_decl_with_vis_value_fields (&bp, expr);
 510
 511   if (CODE_CONTAINS_STRUCT (code, TS_FUNCTION_DECL))
 512     unpack_ts_function_decl_value_fields (&bp, expr);
 513
 514   if (CODE_CONTAINS_STRUCT (code, TS_TYPE_COMMON))
 515     unpack_ts_type_common_value_fields (&bp, expr);
 516
 517   if (CODE_CONTAINS_STRUCT (code, TS_EXP))
 518     {
 519       stream_input_location (&EXPR_CHECK (expr)->exp.locus, &bp, data_in);
 520       if (code == MEM_REF
 521           || code == TARGET_MEM_REF)
 522         {
 523           MR_DEPENDENCE_CLIQUE (expr)
 524             = (unsigned)bp_unpack_value (&bp, sizeof (short) * 8);
 525           if (MR_DEPENDENCE_CLIQUE (expr) != 0)
 526             MR_DEPENDENCE_BASE (expr)
 527               = (unsigned)bp_unpack_value (&bp, sizeof (short) * 8);
 528         }
 529       else if (code == CALL_EXPR)
 530         CALL_EXPR_IFN (expr) = bp_unpack_enum (&bp, internal_fn, IFN_LAST);
 531     }
 532
 533   if (CODE_CONTAINS_STRUCT (code, TS_BLOCK))
 534     unpack_ts_block_value_fields (data_in, &bp, expr);
 535
 536   if (CODE_CONTAINS_STRUCT (code, TS_TRANSLATION_UNIT_DECL))
 537     unpack_ts_translation_unit_decl_value_fields (data_in, &bp, expr);
 538
 539   if (CODE_CONTAINS_STRUCT (code, TS_OPTIMIZATION))
 540     cl_optimization_stream_in (data_in, &bp, TREE_OPTIMIZATION (expr));
 541
 542   if (CODE_CONTAINS_STRUCT (code, TS_CONSTRUCTOR))
 543     {
 544       unsigned HOST_WIDE_INT length = bp_unpack_var_len_unsigned (&bp);
 545       if (length > 0)
 546         vec_safe_grow (CONSTRUCTOR_ELTS (expr), length);
 547     }
 548
 549 #ifndef ACCEL_COMPILER
 550   if (CODE_CONTAINS_STRUCT (code, TS_TARGET_OPTION))
 551     {
 552       cl_target_option_stream_in (data_in, &bp, TREE_TARGET_OPTION (expr));
 553       if (targetm.target_option.post_stream_in)
 554         targetm.target_option.post_stream_in (TREE_TARGET_OPTION (expr));
 555     }
 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
 574   result = NULL_TREE;
 575
 576   code = lto_tag_to_tree_code (tag);
 577
 578   /* We should never see an SSA_NAME tree.  Only the version numbers of
 579      SSA names are ever written out.  See input_ssa_names.  */
 580   gcc_assert (code != SSA_NAME);
 581
 582   /* Instantiate a new tree using the header data.  */
 583   if (CODE_CONTAINS_STRUCT (code, TS_STRING))
 584     result = streamer_read_string_cst (data_in, ib);
 585   else if (CODE_CONTAINS_STRUCT (code, TS_IDENTIFIER))
 586     result = input_identifier (data_in, ib);
 587   else if (CODE_CONTAINS_STRUCT (code, TS_VEC))
 588     {
 589       HOST_WIDE_INT len = streamer_read_hwi (ib);
 590       result = make_tree_vec (len);
 591     }
 592   else if (CODE_CONTAINS_STRUCT (code, TS_VECTOR))
 593     {
 594       bitpack_d bp = streamer_read_bitpack (ib);
 595       unsigned int log2_npatterns = bp_unpack_value (&bp, 8);
 596       unsigned int nelts_per_pattern = bp_unpack_value (&bp, 8);
 597       result = make_vector (log2_npatterns, nelts_per_pattern);
 598     }
 599   else if (CODE_CONTAINS_STRUCT (code, TS_BINFO))
 600     {
 601       unsigned HOST_WIDE_INT len = streamer_read_uhwi (ib);
 602       result = make_tree_binfo (len);
 603     }
 604   else if (CODE_CONTAINS_STRUCT (code, TS_INT_CST))
 605     {
 606       unsigned HOST_WIDE_INT len = streamer_read_uhwi (ib);
 607       unsigned HOST_WIDE_INT ext_len = streamer_read_uhwi (ib);
 608       result = make_int_cst (len, ext_len);
 609     }
 610   else if (code == CALL_EXPR)
 611     {
 612       unsigned HOST_WIDE_INT nargs = streamer_read_uhwi (ib);
 613       return build_vl_exp (CALL_EXPR, nargs + 3);
 614     }
 615   else if (code == OMP_CLAUSE)
 616     {
 617       enum omp_clause_code subcode
 618         = (enum omp_clause_code) streamer_read_uhwi (ib);
 619       return build_omp_clause (UNKNOWN_LOCATION, subcode);
 620     }
 621   else
 622     {
 623       /* For all other nodes, materialize the tree with a raw
 624          make_node call.  */
 625       result = make_node (code);
 626     }
 627
 628   return result;
 629 }
 630
 631
 632 /* Read all pointer fields in the TS_COMMON structure of EXPR from input
 633    block IB.  DATA_IN contains tables and descriptors for the
 634    file being read.  */
 635
 636
 637 static void
 638 lto_input_ts_common_tree_pointers (struct lto_input_block *ib,
 639                                    struct data_in *data_in, tree expr)
 640 {
 641   if (TREE_CODE (expr) != IDENTIFIER_NODE)
 642     TREE_TYPE (expr) = stream_read_tree (ib, data_in);
 643 }
 644
 645
 646 /* Read all pointer fields in the TS_VECTOR structure of EXPR from input
 647    block IB.  DATA_IN contains tables and descriptors for the
 648    file being read.  */
 649
 650 static void
 651 lto_input_ts_vector_tree_pointers (struct lto_input_block *ib,
 652                                    struct data_in *data_in, tree expr)
 653 {
 654   unsigned int count = vector_cst_encoded_nelts (expr);
 655   for (unsigned int i = 0; i < count; ++i)
 656     VECTOR_CST_ENCODED_ELT (expr, i) = stream_read_tree (ib, data_in);
 657 }
 658
 659
 660 /* Read all pointer fields in the TS_POLY_INT_CST structure of EXPR from
 661    input block IB.  DATA_IN contains tables and descriptors for the
 662    file being read.  */
 663
 664 static void
 665 lto_input_ts_poly_tree_pointers (struct lto_input_block *ib,
 666                                  struct data_in *data_in, tree expr)
 667 {
 668   for (unsigned int i = 0; i < NUM_POLY_INT_COEFFS; ++i)
 669     POLY_INT_CST_COEFF (expr, i) = stream_read_tree (ib, data_in);
 670 }
 671
 672
 673 /* Read all pointer fields in the TS_COMPLEX structure of EXPR from input
 674    block IB.  DATA_IN contains tables and descriptors for the
 675    file being read.  */
 676
 677 static void
 678 lto_input_ts_complex_tree_pointers (struct lto_input_block *ib,
 679                                     struct data_in *data_in, tree expr)
 680 {
 681   TREE_REALPART (expr) = stream_read_tree (ib, data_in);
 682   TREE_IMAGPART (expr) = stream_read_tree (ib, data_in);
 683 }
 684
 685
 686 /* Read all pointer fields in the TS_DECL_MINIMAL structure of EXPR
 687    from input block IB.  DATA_IN contains tables and descriptors for the
 688    file being read.  */
 689
 690 static void
 691 lto_input_ts_decl_minimal_tree_pointers (struct lto_input_block *ib,
 692                                          struct data_in *data_in, tree expr)
 693 {
 694   DECL_NAME (expr) = stream_read_tree (ib, data_in);
 695   DECL_CONTEXT (expr) = stream_read_tree (ib, data_in);
 696 }
 697
 698
 699 /* Read all pointer fields in the TS_DECL_COMMON structure of EXPR from
 700    input block IB.  DATA_IN contains tables and descriptors for the
 701    file being read.  */
 702
 703 static void
 704 lto_input_ts_decl_common_tree_pointers (struct lto_input_block *ib,
 705                                         struct data_in *data_in, tree expr)
 706 {
 707   DECL_SIZE (expr) = stream_read_tree (ib, data_in);
 708   DECL_SIZE_UNIT (expr) = stream_read_tree (ib, data_in);
 709   DECL_ATTRIBUTES (expr) = stream_read_tree (ib, data_in);
 710   DECL_ABSTRACT_ORIGIN (expr) = stream_read_tree (ib, data_in);
 711
 712   if ((VAR_P (expr) || TREE_CODE (expr) == PARM_DECL)
 713       && DECL_HAS_VALUE_EXPR_P (expr))
 714     SET_DECL_VALUE_EXPR (expr, stream_read_tree (ib, data_in));
 715
 716   if (VAR_P (expr)
 717       && DECL_HAS_DEBUG_EXPR_P (expr))
 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 *,
 732                                             struct data_in *, tree)
 733 {
 734 }
 735
 736
 737 /* Read all pointer fields in the TS_DECL_WITH_VIS structure of EXPR
 738    from input block IB.  DATA_IN contains tables and descriptors for the
 739    file being read.  */
 740
 741 static void
 742 lto_input_ts_decl_with_vis_tree_pointers (struct lto_input_block *ib,
 743                                           struct data_in *data_in, tree expr)
 744 {
 745   tree id;
 746
 747   id = stream_read_tree (ib, data_in);
 748   if (id)
 749     {
 750       gcc_assert (TREE_CODE (id) == IDENTIFIER_NODE);
 751       SET_DECL_ASSEMBLER_NAME (expr, id);
 752     }
 753 }
 754
 755
 756 /* Read all pointer fields in the TS_FIELD_DECL structure of EXPR from
 757    input block IB.  DATA_IN contains tables and descriptors for the
 758    file being read.  */
 759
 760 static void
 761 lto_input_ts_field_decl_tree_pointers (struct lto_input_block *ib,
 762                                        struct data_in *data_in, tree expr)
 763 {
 764   DECL_FIELD_OFFSET (expr) = stream_read_tree (ib, data_in);
 765   DECL_BIT_FIELD_TYPE (expr) = stream_read_tree (ib, data_in);
 766   DECL_BIT_FIELD_REPRESENTATIVE (expr) = stream_read_tree (ib, data_in);
 767   DECL_FIELD_BIT_OFFSET (expr) = stream_read_tree (ib, data_in);
 768 }
 769
 770
 771 /* Read all pointer fields in the TS_FUNCTION_DECL structure of EXPR
 772    from input block IB.  DATA_IN contains tables and descriptors for the
 773    file being read.  */
 774
 775 static void
 776 lto_input_ts_function_decl_tree_pointers (struct lto_input_block *ib,
 777                                           struct data_in *data_in, tree expr)
 778 {
 779   /* DECL_STRUCT_FUNCTION is loaded on demand by cgraph_get_body.  */
 780   DECL_FUNCTION_PERSONALITY (expr) = stream_read_tree (ib, data_in);
 781 #ifndef ACCEL_COMPILER
 782   DECL_FUNCTION_SPECIFIC_TARGET (expr) = stream_read_tree (ib, data_in);
 783 #endif
 784   DECL_FUNCTION_SPECIFIC_OPTIMIZATION (expr) = stream_read_tree (ib, data_in);
 785 #ifdef ACCEL_COMPILER
 786   {
 787     tree opts = DECL_FUNCTION_SPECIFIC_OPTIMIZATION (expr);
 788     if (opts)
 789       {
 790         struct gcc_options tmp;
 791         init_options_struct (&tmp, NULL);
 792         cl_optimization_restore (&tmp, TREE_OPTIMIZATION (opts));
 793         finish_options (&tmp, &global_options_set, UNKNOWN_LOCATION);
 794         opts = build_optimization_node (&tmp);
 795         finalize_options_struct (&tmp);
 796         DECL_FUNCTION_SPECIFIC_OPTIMIZATION (expr) = opts;
 797       }
 798   }
 799 #endif
 800
 801   /* If the file contains a function with an EH personality set,
 802      then it was compiled with -fexceptions.  In that case, initialize
 803      the backend EH machinery.  */
 804   if (DECL_FUNCTION_PERSONALITY (expr))
 805     lto_init_eh ();
 806 }
 807
 808
 809 /* Read all pointer fields in the TS_TYPE_COMMON structure of EXPR from
 810    input block IB.  DATA_IN contains tables and descriptors for the file
 811    being read.  */
 812
 813 static void
 814 lto_input_ts_type_common_tree_pointers (struct lto_input_block *ib,
 815                                         struct data_in *data_in, tree expr)
 816 {
 817   TYPE_SIZE (expr) = stream_read_tree (ib, data_in);
 818   TYPE_SIZE_UNIT (expr) = stream_read_tree (ib, data_in);
 819   TYPE_ATTRIBUTES (expr) = stream_read_tree (ib, data_in);
 820   TYPE_NAME (expr) = stream_read_tree (ib, data_in);
 821   /* Do not stream TYPE_POINTER_TO or TYPE_REFERENCE_TO.  They will be
 822      reconstructed during fixup.  */
 823   /* Do not stream TYPE_NEXT_VARIANT, we reconstruct the variant lists
 824      during fixup.  */
 825   TYPE_MAIN_VARIANT (expr) = stream_read_tree (ib, data_in);
 826   TYPE_CONTEXT (expr) = stream_read_tree (ib, data_in);
 827   /* TYPE_CANONICAL gets re-computed during type merging.  */
 828   TYPE_CANONICAL (expr) = NULL_TREE;
 829 }
 830
 831 /* Read all pointer fields in the TS_TYPE_NON_COMMON structure of EXPR
 832    from input block IB.  DATA_IN contains tables and descriptors for the
 833    file being read.  */
 834
 835 static void
 836 lto_input_ts_type_non_common_tree_pointers (struct lto_input_block *ib,
 837                                             struct data_in *data_in,
 838                                             tree expr)
 839 {
 840   if (TREE_CODE (expr) == ENUMERAL_TYPE)
 841     TYPE_VALUES (expr) = stream_read_tree (ib, data_in);
 842   else if (TREE_CODE (expr) == ARRAY_TYPE)
 843     TYPE_DOMAIN (expr) = stream_read_tree (ib, data_in);
 844   else if (RECORD_OR_UNION_TYPE_P (expr))
 845     TYPE_FIELDS (expr) = streamer_read_chain (ib, data_in);
 846   else if (TREE_CODE (expr) == FUNCTION_TYPE
 847            || TREE_CODE (expr) == METHOD_TYPE)
 848     TYPE_ARG_TYPES (expr) = stream_read_tree (ib, data_in);
 849
 850   if (!POINTER_TYPE_P (expr))
 851     TYPE_MIN_VALUE_RAW (expr) = stream_read_tree (ib, data_in);
 852   TYPE_MAX_VALUE_RAW (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   tree block;
 898
 899   for (i = 0; i < TREE_OPERAND_LENGTH (expr); i++)
 900     TREE_OPERAND (expr, i) = stream_read_tree (ib, data_in);
 901
 902   block = stream_read_tree (ib, data_in);
 903
 904   /* TODO: Block is stored in the locus information.  It may make more sense to
 905      to make it go via the location cache.  */
 906   if (block)
 907     {
 908       data_in->location_cache.apply_location_cache ();
 909       TREE_SET_BLOCK (expr, block);
 910     }
 911 }
 912
 913
 914 /* Read all pointer fields in the TS_BLOCK structure of EXPR from input
 915    block IB.  DATA_IN contains tables and descriptors for the
 916    file being read.  */
 917
 918 static void
 919 lto_input_ts_block_tree_pointers (struct lto_input_block *ib,
 920                                   struct data_in *data_in, tree expr)
 921 {
 922   BLOCK_VARS (expr) = streamer_read_chain (ib, data_in);
 923
 924   BLOCK_SUPERCONTEXT (expr) = stream_read_tree (ib, data_in);
 925   BLOCK_ABSTRACT_ORIGIN (expr) = stream_read_tree (ib, data_in);
 926   /* We may end up prevailing a decl with DECL_ORIGIN (t) != t here
 927      which breaks the invariant that BLOCK_ABSTRACT_ORIGIN is the
 928      ultimate origin.  Fixup here.
 929      ???  This should get fixed with moving to DIE references.  */
 930   if (DECL_P (BLOCK_ORIGIN (expr)))
 931     BLOCK_ABSTRACT_ORIGIN (expr) = DECL_ORIGIN (BLOCK_ABSTRACT_ORIGIN (expr));
 932   /* Do not stream BLOCK_NONLOCALIZED_VARS.  We cannot handle debug information
 933      for early inlined BLOCKs so drop it on the floor instead of ICEing in
 934      dwarf2out.c.  */
 935
 936   /* BLOCK_FRAGMENT_ORIGIN and BLOCK_FRAGMENT_CHAIN is not live at LTO
 937      streaming time.  */
 938
 939   /* We re-compute BLOCK_SUBBLOCKS of our parent here instead
 940      of streaming it.  For non-BLOCK BLOCK_SUPERCONTEXTs we still
 941      stream the child relationship explicitly.  */
 942   if (BLOCK_SUPERCONTEXT (expr)
 943       && TREE_CODE (BLOCK_SUPERCONTEXT (expr)) == BLOCK)
 944     {
 945       BLOCK_CHAIN (expr) = BLOCK_SUBBLOCKS (BLOCK_SUPERCONTEXT (expr));
 946       BLOCK_SUBBLOCKS (BLOCK_SUPERCONTEXT (expr)) = expr;
 947     }
 948
 949   /* The global block is rooted at the TU decl.  Hook it here to
 950      avoid the need to stream in this block during WPA time.  */
 951   else if (BLOCK_SUPERCONTEXT (expr)
 952            && TREE_CODE (BLOCK_SUPERCONTEXT (expr)) == TRANSLATION_UNIT_DECL)
 953     DECL_INITIAL (BLOCK_SUPERCONTEXT (expr)) = expr;
 954
 955   /* The function-level block is connected at the time we read in
 956      function bodies for the same reason.  */
 957 }
 958
 959
 960 /* Read all pointer fields in the TS_BINFO structure of EXPR from input
 961    block IB.  DATA_IN contains tables and descriptors for the
 962    file being read.  */
 963
 964 static void
 965 lto_input_ts_binfo_tree_pointers (struct lto_input_block *ib,
 966                                   struct data_in *data_in, tree expr)
 967 {
 968   tree t;
 969
 970   /* Note that the number of slots in EXPR was read in
 971      streamer_alloc_tree when instantiating EXPR.  However, the
 972      vector is empty so we cannot rely on vec::length to know how many
 973      elements to read.  So, this list is emitted as a 0-terminated
 974      list on the writer side.  */
 975   do
 976     {
 977       t = stream_read_tree (ib, data_in);
 978       if (t)
 979         BINFO_BASE_BINFOS (expr)->quick_push (t);
 980     }
 981   while (t);
 982
 983   BINFO_OFFSET (expr) = stream_read_tree (ib, data_in);
 984   BINFO_VTABLE (expr) = stream_read_tree (ib, data_in);
 985
 986   /* Do not walk BINFO_INHERITANCE_CHAIN, BINFO_SUBVTT_INDEX,
 987      BINFO_BASE_ACCESSES and BINFO_VPTR_INDEX; these are used by C++ FE
 988      only.  */
 989 }
 990
 991
 992 /* Read all pointer fields in the TS_CONSTRUCTOR structure of EXPR from
 993    input block IB.  DATA_IN contains tables and descriptors for the
 994    file being read.  */
 995
 996 static void
 997 lto_input_ts_constructor_tree_pointers (struct lto_input_block *ib,
 998                                         struct data_in *data_in, tree expr)
 999 {
1000   unsigned i;
1001
1002   for (i = 0; i < CONSTRUCTOR_NELTS (expr); i++)
1003     {
1004       constructor_elt e;
1005       e.index = stream_read_tree (ib, data_in);
1006       e.value = stream_read_tree (ib, data_in);
1007       (*CONSTRUCTOR_ELTS (expr))[i] = e;
1008     }
1009 }
1010
1011
1012 /* Read all pointer fields in the TS_OMP_CLAUSE structure of EXPR from
1013    input block IB.  DATA_IN contains tables and descriptors for the
1014    file being read.  */
1015
1016 static void
1017 lto_input_ts_omp_clause_tree_pointers (struct lto_input_block *ib,
1018                                        struct data_in *data_in, tree expr)
1019 {
1020   int i;
1021
1022   for (i = 0; i < omp_clause_num_ops[OMP_CLAUSE_CODE (expr)]; i++)
1023     OMP_CLAUSE_OPERAND (expr, i) = stream_read_tree (ib, data_in);
1024   OMP_CLAUSE_CHAIN (expr) = stream_read_tree (ib, data_in);
1025 }
1026
1027
1028 /* Read all pointer fields in EXPR from input block IB.  DATA_IN
1029    contains tables and descriptors for the file being read.  */
1030
1031 void
1032 streamer_read_tree_body (struct lto_input_block *ib, struct data_in *data_in,
1033                          tree expr)
1034 {
1035   enum tree_code code;
1036
1037   code = TREE_CODE (expr);
1038
1039   if (CODE_CONTAINS_STRUCT (code, TS_TYPED))
1040     lto_input_ts_common_tree_pointers (ib, data_in, expr);
1041
1042   if (CODE_CONTAINS_STRUCT (code, TS_VECTOR))
1043     lto_input_ts_vector_tree_pointers (ib, data_in, expr);
1044
1045   if (CODE_CONTAINS_STRUCT (code, TS_POLY_INT_CST))
1046     lto_input_ts_poly_tree_pointers (ib, data_in, expr);
1047
1048   if (CODE_CONTAINS_STRUCT (code, TS_COMPLEX))
1049     lto_input_ts_complex_tree_pointers (ib, data_in, expr);
1050
1051   if (CODE_CONTAINS_STRUCT (code, TS_DECL_MINIMAL))
1052     lto_input_ts_decl_minimal_tree_pointers (ib, data_in, expr);
1053
1054   if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
1055     lto_input_ts_decl_common_tree_pointers (ib, data_in, expr);
1056
1057   if (CODE_CONTAINS_STRUCT (code, TS_DECL_NON_COMMON))
1058     lto_input_ts_decl_non_common_tree_pointers (ib, data_in, expr);
1059
1060   if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS))
1061     lto_input_ts_decl_with_vis_tree_pointers (ib, data_in, expr);
1062
1063   if (CODE_CONTAINS_STRUCT (code, TS_FIELD_DECL))
1064     lto_input_ts_field_decl_tree_pointers (ib, data_in, expr);
1065
1066   if (CODE_CONTAINS_STRUCT (code, TS_FUNCTION_DECL))
1067     lto_input_ts_function_decl_tree_pointers (ib, data_in, expr);
1068
1069   if (CODE_CONTAINS_STRUCT (code, TS_TYPE_COMMON))
1070     lto_input_ts_type_common_tree_pointers (ib, data_in, expr);
1071
1072   if (CODE_CONTAINS_STRUCT (code, TS_TYPE_NON_COMMON))
1073     lto_input_ts_type_non_common_tree_pointers (ib, data_in, expr);
1074
1075   if (CODE_CONTAINS_STRUCT (code, TS_LIST))
1076     lto_input_ts_list_tree_pointers (ib, data_in, expr);
1077
1078   if (CODE_CONTAINS_STRUCT (code, TS_VEC))
1079     lto_input_ts_vec_tree_pointers (ib, data_in, expr);
1080
1081   if (CODE_CONTAINS_STRUCT (code, TS_EXP))
1082     lto_input_ts_exp_tree_pointers (ib, data_in, expr);
1083
1084   if (CODE_CONTAINS_STRUCT (code, TS_BLOCK))
1085     lto_input_ts_block_tree_pointers (ib, data_in, expr);
1086
1087   if (CODE_CONTAINS_STRUCT (code, TS_BINFO))
1088     lto_input_ts_binfo_tree_pointers (ib, data_in, expr);
1089
1090   if (CODE_CONTAINS_STRUCT (code, TS_CONSTRUCTOR))
1091     lto_input_ts_constructor_tree_pointers (ib, data_in, expr);
1092
1093   if (code == OMP_CLAUSE)
1094     lto_input_ts_omp_clause_tree_pointers (ib, data_in, expr);
1095 }
1096
1097
1098 /* Read an index IX from input block IB and return the tree node at
1099    DATA_IN->FILE_DATA->GLOBALS_INDEX[IX].  */
1100
1101 tree
1102 streamer_get_pickled_tree (struct lto_input_block *ib, struct data_in *data_in)
1103 {
1104   unsigned HOST_WIDE_INT ix;
1105   tree result;
1106   enum LTO_tags expected_tag;
1107
1108   ix = streamer_read_uhwi (ib);
1109   expected_tag = streamer_read_enum (ib, LTO_tags, LTO_NUM_TAGS);
1110
1111   result = streamer_tree_cache_get_tree (data_in->reader_cache, ix);
1112   gcc_assert (result
1113               && TREE_CODE (result) == lto_tag_to_tree_code (expected_tag));
1114
1115   return result;
1116 }