gcc/print-tree.c

   1 /* Prints out tree in human readable form - GCC
   2    Copyright (C) 1990-2014 Free Software Foundation, Inc.
   3
   4 This file is part of GCC.
   5
   6 GCC is free software; you can redistribute it and/or modify it under
   7 the terms of the GNU General Public License as published by the Free
   8 Software Foundation; either version 3, or (at your option) any later
   9 version.
  10
  11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14 for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GCC; see the file COPYING3.  If not see
  18 <http://www.gnu.org/licenses/>.  */
  19
  20
  21 #include "config.h"
  22 #include "system.h"
  23 #include "coretypes.h"
  24 #include "tm.h"
  25 #include "tree.h"
  26 #include "varasm.h"
  27 #include "print-rtl.h"
  28 #include "stor-layout.h"
  29 #include "ggc.h"
  30 #include "langhooks.h"
  31 #include "tree-iterator.h"
  32 #include "diagnostic.h"
  33 #include "gimple-pretty-print.h" /* FIXME */
  34 #include "cgraph.h"
  35 #include "tree-cfg.h"
  36 #include "tree-dump.h"
  37 #include "dumpfile.h"
  38 #include "wide-int-print.h"
  39
  40 /* Define the hash table of nodes already seen.
  41    Such nodes are not repeated; brief cross-references are used.  */
  42
  43 #define HASH_SIZE 37
  44
  45 struct bucket
  46 {
  47   tree node;
  48   struct bucket *next;
  49 };
  50
  51 static struct bucket **table;
  52
  53 /* Print PREFIX and ADDR to FILE.  */
  54 void
  55 dump_addr (FILE *file, const char *prefix, const void *addr)
  56 {
  57   if (flag_dump_noaddr || flag_dump_unnumbered)
  58     fprintf (file, "%s#", prefix);
  59   else
  60     fprintf (file, "%s" HOST_PTR_PRINTF, prefix, addr);
  61 }
  62
  63 /* Print a node in brief fashion, with just the code, address and name.  */
  64
  65 void
  66 print_node_brief (FILE *file, const char *prefix, const_tree node, int indent)
  67 {
  68   enum tree_code_class tclass;
  69
  70   if (node == 0)
  71     return;
  72
  73   tclass = TREE_CODE_CLASS (TREE_CODE (node));
  74
  75   /* Always print the slot this node is in, and its code, address and
  76      name if any.  */
  77   if (indent > 0)
  78     fprintf (file, " ");
  79   fprintf (file, "%s <%s", prefix, get_tree_code_name (TREE_CODE (node)));
  80   dump_addr (file, " ", node);
  81
  82   if (tclass == tcc_declaration)
  83     {
  84       if (DECL_NAME (node))
  85         fprintf (file, " %s", IDENTIFIER_POINTER (DECL_NAME (node)));
  86       else if (TREE_CODE (node) == LABEL_DECL
  87                && LABEL_DECL_UID (node) != -1)
  88         {
  89           if (dump_flags & TDF_NOUID)
  90             fprintf (file, " L.xxxx");
  91           else
  92             fprintf (file, " L.%d", (int) LABEL_DECL_UID (node));
  93         }
  94       else
  95         {
  96           if (dump_flags & TDF_NOUID)
  97             fprintf (file, " %c.xxxx",
  98                      TREE_CODE (node) == CONST_DECL ? 'C' : 'D');
  99           else
 100             fprintf (file, " %c.%u",
 101                      TREE_CODE (node) == CONST_DECL ? 'C' : 'D',
 102                      DECL_UID (node));
 103         }
 104     }
 105   else if (tclass == tcc_type)
 106     {
 107       if (TYPE_NAME (node))
 108         {
 109           if (TREE_CODE (TYPE_NAME (node)) == IDENTIFIER_NODE)
 110             fprintf (file, " %s", IDENTIFIER_POINTER (TYPE_NAME (node)));
 111           else if (TREE_CODE (TYPE_NAME (node)) == TYPE_DECL
 112                    && DECL_NAME (TYPE_NAME (node)))
 113             fprintf (file, " %s",
 114                      IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (node))));
 115         }
 116       if (!ADDR_SPACE_GENERIC_P (TYPE_ADDR_SPACE (node)))
 117         fprintf (file, " address-space-%d", TYPE_ADDR_SPACE (node));
 118     }
 119   if (TREE_CODE (node) == IDENTIFIER_NODE)
 120     fprintf (file, " %s", IDENTIFIER_POINTER (node));
 121
 122   /* We might as well always print the value of an integer or real.  */
 123   if (TREE_CODE (node) == INTEGER_CST)
 124     {
 125       if (TREE_OVERFLOW (node))
 126         fprintf (file, " overflow");
 127
 128       fprintf (file, " ");
 129       print_dec (node, file, TYPE_SIGN (TREE_TYPE (node)));
 130     }
 131   if (TREE_CODE (node) == REAL_CST)
 132     {
 133       REAL_VALUE_TYPE d;
 134
 135       if (TREE_OVERFLOW (node))
 136         fprintf (file, " overflow");
 137
 138       d = TREE_REAL_CST (node);
 139       if (REAL_VALUE_ISINF (d))
 140         fprintf (file,  REAL_VALUE_NEGATIVE (d) ? " -Inf" : " Inf");
 141       else if (REAL_VALUE_ISNAN (d))
 142         fprintf (file, " Nan");
 143       else
 144         {
 145           char string[60];
 146           real_to_decimal (string, &d, sizeof (string), 0, 1);
 147           fprintf (file, " %s", string);
 148         }
 149     }
 150   if (TREE_CODE (node) == FIXED_CST)
 151     {
 152       FIXED_VALUE_TYPE f;
 153       char string[60];
 154
 155       if (TREE_OVERFLOW (node))
 156         fprintf (file, " overflow");
 157
 158       f = TREE_FIXED_CST (node);
 159       fixed_to_decimal (string, &f, sizeof (string));
 160       fprintf (file, " %s", string);
 161     }
 162
 163   fprintf (file, ">");
 164 }
 165
 166 void
 167 indent_to (FILE *file, int column)
 168 {
 169   int i;
 170
 171   /* Since this is the long way, indent to desired column.  */
 172   if (column > 0)
 173     fprintf (file, "\n");
 174   for (i = 0; i < column; i++)
 175     fprintf (file, " ");
 176 }
 177 \f
 178 /* Print the node NODE in full on file FILE, preceded by PREFIX,
 179    starting in column INDENT.  */
 180
 181 void
 182 print_node (FILE *file, const char *prefix, tree node, int indent)
 183 {
 184   int hash;
 185   struct bucket *b;
 186   enum machine_mode mode;
 187   enum tree_code_class tclass;
 188   int len;
 189   int i;
 190   expanded_location xloc;
 191   enum tree_code code;
 192
 193   if (node == 0)
 194     return;
 195
 196   code = TREE_CODE (node);
 197   tclass = TREE_CODE_CLASS (code);
 198
 199   /* Don't get too deep in nesting.  If the user wants to see deeper,
 200      it is easy to use the address of a lowest-level node
 201      as an argument in another call to debug_tree.  */
 202
 203   if (indent > 24)
 204     {
 205       print_node_brief (file, prefix, node, indent);
 206       return;
 207     }
 208
 209   if (indent > 8 && (tclass == tcc_type || tclass == tcc_declaration))
 210     {
 211       print_node_brief (file, prefix, node, indent);
 212       return;
 213     }
 214
 215   /* It is unsafe to look at any other fields of an ERROR_MARK node.  */
 216   if (code == ERROR_MARK)
 217     {
 218       print_node_brief (file, prefix, node, indent);
 219       return;
 220     }
 221
 222   /* Allow this function to be called if the table is not there.  */
 223   if (table)
 224     {
 225       hash = ((uintptr_t) node) % HASH_SIZE;
 226
 227       /* If node is in the table, just mention its address.  */
 228       for (b = table[hash]; b; b = b->next)
 229         if (b->node == node)
 230           {
 231             print_node_brief (file, prefix, node, indent);
 232             return;
 233           }
 234
 235       /* Add this node to the table.  */
 236       b = XNEW (struct bucket);
 237       b->node = node;
 238       b->next = table[hash];
 239       table[hash] = b;
 240     }
 241
 242   /* Indent to the specified column, since this is the long form.  */
 243   indent_to (file, indent);
 244
 245   /* Print the slot this node is in, and its code, and address.  */
 246   fprintf (file, "%s <%s", prefix, get_tree_code_name (code));
 247   dump_addr (file, " ", node);
 248
 249   /* Print the name, if any.  */
 250   if (tclass == tcc_declaration)
 251     {
 252       if (DECL_NAME (node))
 253         fprintf (file, " %s", IDENTIFIER_POINTER (DECL_NAME (node)));
 254       else if (code == LABEL_DECL
 255                && LABEL_DECL_UID (node) != -1)
 256         {
 257           if (dump_flags & TDF_NOUID)
 258             fprintf (file, " L.xxxx");
 259           else
 260             fprintf (file, " L.%d", (int) LABEL_DECL_UID (node));
 261         }
 262       else
 263         {
 264           if (dump_flags & TDF_NOUID)
 265             fprintf (file, " %c.xxxx", code == CONST_DECL ? 'C' : 'D');
 266           else
 267             fprintf (file, " %c.%u", code == CONST_DECL ? 'C' : 'D',
 268                      DECL_UID (node));
 269         }
 270     }
 271   else if (tclass == tcc_type)
 272     {
 273       if (TYPE_NAME (node))
 274         {
 275           if (TREE_CODE (TYPE_NAME (node)) == IDENTIFIER_NODE)
 276             fprintf (file, " %s", IDENTIFIER_POINTER (TYPE_NAME (node)));
 277           else if (TREE_CODE (TYPE_NAME (node)) == TYPE_DECL
 278                    && DECL_NAME (TYPE_NAME (node)))
 279             fprintf (file, " %s",
 280                      IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (node))));
 281         }
 282     }
 283   if (code == IDENTIFIER_NODE)
 284     fprintf (file, " %s", IDENTIFIER_POINTER (node));
 285
 286   if (code == INTEGER_CST)
 287     {
 288       if (indent <= 4)
 289         print_node_brief (file, "type", TREE_TYPE (node), indent + 4);
 290     }
 291   else if (CODE_CONTAINS_STRUCT (code, TS_TYPED))
 292     {
 293       print_node (file, "type", TREE_TYPE (node), indent + 4);
 294       if (TREE_TYPE (node))
 295         indent_to (file, indent + 3);
 296     }
 297
 298   if (!TYPE_P (node) && TREE_SIDE_EFFECTS (node))
 299     fputs (" side-effects", file);
 300
 301   if (TYPE_P (node) ? TYPE_READONLY (node) : TREE_READONLY (node))
 302     fputs (" readonly", file);
 303   if (TYPE_P (node) && TYPE_ATOMIC (node))
 304     fputs (" atomic", file);
 305   if (!TYPE_P (node) && TREE_CONSTANT (node))
 306     fputs (" constant", file);
 307   else if (TYPE_P (node) && TYPE_SIZES_GIMPLIFIED (node))
 308     fputs (" sizes-gimplified", file);
 309
 310   if (TYPE_P (node) && !ADDR_SPACE_GENERIC_P (TYPE_ADDR_SPACE (node)))
 311     fprintf (file, " address-space-%d", TYPE_ADDR_SPACE (node));
 312
 313   if (TREE_ADDRESSABLE (node))
 314     fputs (" addressable", file);
 315   if (TREE_THIS_VOLATILE (node))
 316     fputs (" volatile", file);
 317   if (TREE_ASM_WRITTEN (node))
 318     fputs (" asm_written", file);
 319   if (TREE_USED (node))
 320     fputs (" used", file);
 321   if (TREE_NOTHROW (node))
 322     fputs (TYPE_P (node) ? " align-ok" : " nothrow", file);
 323   if (TREE_PUBLIC (node))
 324     fputs (" public", file);
 325   if (TREE_PRIVATE (node))
 326     fputs (" private", file);
 327   if (TREE_PROTECTED (node))
 328     fputs (" protected", file);
 329   if (TREE_STATIC (node))
 330     fputs (" static", file);
 331   if (TREE_DEPRECATED (node))
 332     fputs (" deprecated", file);
 333   if (TREE_VISITED (node))
 334     fputs (" visited", file);
 335
 336   if (code != TREE_VEC && code != INTEGER_CST && code != SSA_NAME)
 337     {
 338       if (TREE_LANG_FLAG_0 (node))
 339         fputs (" tree_0", file);
 340       if (TREE_LANG_FLAG_1 (node))
 341         fputs (" tree_1", file);
 342       if (TREE_LANG_FLAG_2 (node))
 343         fputs (" tree_2", file);
 344       if (TREE_LANG_FLAG_3 (node))
 345         fputs (" tree_3", file);
 346       if (TREE_LANG_FLAG_4 (node))
 347         fputs (" tree_4", file);
 348       if (TREE_LANG_FLAG_5 (node))
 349         fputs (" tree_5", file);
 350       if (TREE_LANG_FLAG_6 (node))
 351         fputs (" tree_6", file);
 352     }
 353
 354   /* DECL_ nodes have additional attributes.  */
 355
 356   switch (TREE_CODE_CLASS (code))
 357     {
 358     case tcc_declaration:
 359       if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
 360         {
 361           if (DECL_UNSIGNED (node))
 362             fputs (" unsigned", file);
 363           if (DECL_IGNORED_P (node))
 364             fputs (" ignored", file);
 365           if (DECL_ABSTRACT_P (node))
 366             fputs (" abstract", file);
 367           if (DECL_EXTERNAL (node))
 368             fputs (" external", file);
 369           if (DECL_NONLOCAL (node))
 370             fputs (" nonlocal", file);
 371         }
 372       if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS))
 373         {
 374           if (DECL_WEAK (node))
 375             fputs (" weak", file);
 376           if (DECL_IN_SYSTEM_HEADER (node))
 377             fputs (" in_system_header", file);
 378         }
 379       if (CODE_CONTAINS_STRUCT (code, TS_DECL_WRTL)
 380           && code != LABEL_DECL
 381           && code != FUNCTION_DECL
 382           && DECL_REGISTER (node))
 383         fputs (" regdecl", file);
 384
 385       if (code == TYPE_DECL && TYPE_DECL_SUPPRESS_DEBUG (node))
 386         fputs (" suppress-debug", file);
 387
 388       if (code == FUNCTION_DECL
 389           && DECL_FUNCTION_SPECIFIC_TARGET (node))
 390         fputs (" function-specific-target", file);
 391       if (code == FUNCTION_DECL
 392           && DECL_FUNCTION_SPECIFIC_OPTIMIZATION (node))
 393         fputs (" function-specific-opt", file);
 394       if (code == FUNCTION_DECL && DECL_DECLARED_INLINE_P (node))
 395         fputs (" autoinline", file);
 396       if (code == FUNCTION_DECL && DECL_BUILT_IN (node))
 397         fputs (" built-in", file);
 398       if (code == FUNCTION_DECL && DECL_STATIC_CHAIN (node))
 399         fputs (" static-chain", file);
 400       if (TREE_CODE (node) == FUNCTION_DECL && decl_is_tm_clone (node))
 401         fputs (" tm-clone", file);
 402
 403       if (code == FIELD_DECL && DECL_PACKED (node))
 404         fputs (" packed", file);
 405       if (code == FIELD_DECL && DECL_BIT_FIELD (node))
 406         fputs (" bit-field", file);
 407       if (code == FIELD_DECL && DECL_NONADDRESSABLE_P (node))
 408         fputs (" nonaddressable", file);
 409
 410       if (code == LABEL_DECL && EH_LANDING_PAD_NR (node))
 411         fprintf (file, " landing-pad:%d", EH_LANDING_PAD_NR (node));
 412
 413       if (code == VAR_DECL && DECL_IN_TEXT_SECTION (node))
 414         fputs (" in-text-section", file);
 415       if (code == VAR_DECL && DECL_IN_CONSTANT_POOL (node))
 416         fputs (" in-constant-pool", file);
 417       if (code == VAR_DECL && DECL_COMMON (node))
 418         fputs (" common", file);
 419       if (code == VAR_DECL && DECL_THREAD_LOCAL_P (node))
 420         {
 421           fputs (" ", file);
 422           fputs (tls_model_names[DECL_TLS_MODEL (node)], file);
 423         }
 424
 425       if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
 426         {
 427           if (DECL_VIRTUAL_P (node))
 428             fputs (" virtual", file);
 429           if (DECL_PRESERVE_P (node))
 430             fputs (" preserve", file);
 431           if (DECL_LANG_FLAG_0 (node))
 432             fputs (" decl_0", file);
 433           if (DECL_LANG_FLAG_1 (node))
 434             fputs (" decl_1", file);
 435           if (DECL_LANG_FLAG_2 (node))
 436             fputs (" decl_2", file);
 437           if (DECL_LANG_FLAG_3 (node))
 438             fputs (" decl_3", file);
 439           if (DECL_LANG_FLAG_4 (node))
 440             fputs (" decl_4", file);
 441           if (DECL_LANG_FLAG_5 (node))
 442             fputs (" decl_5", file);
 443           if (DECL_LANG_FLAG_6 (node))
 444             fputs (" decl_6", file);
 445           if (DECL_LANG_FLAG_7 (node))
 446             fputs (" decl_7", file);
 447
 448           mode = DECL_MODE (node);
 449           fprintf (file, " %s", GET_MODE_NAME (mode));
 450         }
 451
 452       if ((code == VAR_DECL || code == PARM_DECL || code == RESULT_DECL)
 453           && DECL_BY_REFERENCE (node))
 454         fputs (" passed-by-reference", file);
 455
 456       if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS)  && DECL_DEFER_OUTPUT (node))
 457         fputs (" defer-output", file);
 458
 459
 460       xloc = expand_location (DECL_SOURCE_LOCATION (node));
 461       fprintf (file, " file %s line %d col %d", xloc.file, xloc.line,
 462                xloc.column);
 463
 464       if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
 465         {
 466           print_node (file, "size", DECL_SIZE (node), indent + 4);
 467           print_node (file, "unit size", DECL_SIZE_UNIT (node), indent + 4);
 468
 469           if (code != FUNCTION_DECL || DECL_BUILT_IN (node))
 470             indent_to (file, indent + 3);
 471
 472           if (DECL_USER_ALIGN (node))
 473             fprintf (file, " user");
 474
 475           fprintf (file, " align %d", DECL_ALIGN (node));
 476           if (code == FIELD_DECL)
 477             fprintf (file, " offset_align " HOST_WIDE_INT_PRINT_UNSIGNED,
 478                      DECL_OFFSET_ALIGN (node));
 479
 480           if (code == FUNCTION_DECL && DECL_BUILT_IN (node))
 481             {
 482               if (DECL_BUILT_IN_CLASS (node) == BUILT_IN_MD)
 483                 fprintf (file, " built-in BUILT_IN_MD %d", DECL_FUNCTION_CODE (node));
 484               else
 485                 fprintf (file, " built-in %s:%s",
 486                          built_in_class_names[(int) DECL_BUILT_IN_CLASS (node)],
 487                          built_in_names[(int) DECL_FUNCTION_CODE (node)]);
 488             }
 489         }
 490       if (code == FIELD_DECL)
 491         {
 492           print_node (file, "offset", DECL_FIELD_OFFSET (node), indent + 4);
 493           print_node (file, "bit offset", DECL_FIELD_BIT_OFFSET (node),
 494                       indent + 4);
 495           if (DECL_BIT_FIELD_TYPE (node))
 496             print_node (file, "bit_field_type", DECL_BIT_FIELD_TYPE (node),
 497                         indent + 4);
 498         }
 499
 500       print_node_brief (file, "context", DECL_CONTEXT (node), indent + 4);
 501
 502       if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
 503         {
 504           print_node_brief (file, "attributes",
 505                             DECL_ATTRIBUTES (node), indent + 4);
 506           if (code != PARM_DECL)
 507             print_node_brief (file, "initial", DECL_INITIAL (node),
 508                               indent + 4);
 509         }
 510       if (CODE_CONTAINS_STRUCT (code, TS_DECL_WRTL))
 511         {
 512           print_node_brief (file, "abstract_origin",
 513                             DECL_ABSTRACT_ORIGIN (node), indent + 4);
 514         }
 515       if (CODE_CONTAINS_STRUCT (code, TS_DECL_NON_COMMON))
 516         {
 517           print_node (file, "result", DECL_RESULT_FLD (node), indent + 4);
 518         }
 519
 520       lang_hooks.print_decl (file, node, indent);
 521
 522       if (DECL_RTL_SET_P (node))
 523         {
 524           indent_to (file, indent + 4);
 525           print_rtl (file, DECL_RTL (node));
 526         }
 527
 528       if (code == PARM_DECL)
 529         {
 530           print_node (file, "arg-type", DECL_ARG_TYPE (node), indent + 4);
 531
 532           if (DECL_INCOMING_RTL (node) != 0)
 533             {
 534               indent_to (file, indent + 4);
 535               fprintf (file, "incoming-rtl ");
 536               print_rtl (file, DECL_INCOMING_RTL (node));
 537             }
 538         }
 539       else if (code == FUNCTION_DECL
 540                && DECL_STRUCT_FUNCTION (node) != 0)
 541         {
 542           print_node (file, "arguments", DECL_ARGUMENTS (node), indent + 4);
 543           indent_to (file, indent + 4);
 544           dump_addr (file, "struct-function ", DECL_STRUCT_FUNCTION (node));
 545         }
 546
 547       if ((code == VAR_DECL || code == PARM_DECL)
 548           && DECL_HAS_VALUE_EXPR_P (node))
 549         print_node (file, "value-expr", DECL_VALUE_EXPR (node), indent + 4);
 550
 551       /* Print the decl chain only if decl is at second level.  */
 552       if (indent == 4)
 553         print_node (file, "chain", TREE_CHAIN (node), indent + 4);
 554       else
 555         print_node_brief (file, "chain", TREE_CHAIN (node), indent + 4);
 556       break;
 557
 558     case tcc_type:
 559       if (TYPE_UNSIGNED (node))
 560         fputs (" unsigned", file);
 561
 562       if (TYPE_NO_FORCE_BLK (node))
 563         fputs (" no-force-blk", file);
 564
 565       if (TYPE_STRING_FLAG (node))
 566         fputs (" string-flag", file);
 567
 568       if (TYPE_NEEDS_CONSTRUCTING (node))
 569         fputs (" needs-constructing", file);
 570
 571       /* The transparent-union flag is used for different things in
 572          different nodes.  */
 573       if ((code == UNION_TYPE || code == RECORD_TYPE)
 574           && TYPE_TRANSPARENT_AGGR (node))
 575         fputs (" transparent-aggr", file);
 576       else if (code == ARRAY_TYPE
 577                && TYPE_NONALIASED_COMPONENT (node))
 578         fputs (" nonaliased-component", file);
 579
 580       if (TYPE_PACKED (node))
 581         fputs (" packed", file);
 582
 583       if (TYPE_RESTRICT (node))
 584         fputs (" restrict", file);
 585
 586       if (TYPE_LANG_FLAG_0 (node))
 587         fputs (" type_0", file);
 588       if (TYPE_LANG_FLAG_1 (node))
 589         fputs (" type_1", file);
 590       if (TYPE_LANG_FLAG_2 (node))
 591         fputs (" type_2", file);
 592       if (TYPE_LANG_FLAG_3 (node))
 593         fputs (" type_3", file);
 594       if (TYPE_LANG_FLAG_4 (node))
 595         fputs (" type_4", file);
 596       if (TYPE_LANG_FLAG_5 (node))
 597         fputs (" type_5", file);
 598       if (TYPE_LANG_FLAG_6 (node))
 599         fputs (" type_6", file);
 600
 601       mode = TYPE_MODE (node);
 602       fprintf (file, " %s", GET_MODE_NAME (mode));
 603
 604       print_node (file, "size", TYPE_SIZE (node), indent + 4);
 605       print_node (file, "unit size", TYPE_SIZE_UNIT (node), indent + 4);
 606       indent_to (file, indent + 3);
 607
 608       if (TYPE_USER_ALIGN (node))
 609         fprintf (file, " user");
 610
 611       fprintf (file, " align %d symtab %d alias set " HOST_WIDE_INT_PRINT_DEC,
 612                TYPE_ALIGN (node), TYPE_SYMTAB_ADDRESS (node),
 613                (HOST_WIDE_INT) TYPE_ALIAS_SET (node));
 614
 615       if (TYPE_STRUCTURAL_EQUALITY_P (node))
 616         fprintf (file, " structural equality");
 617       else
 618         dump_addr (file, " canonical type ", TYPE_CANONICAL (node));
 619
 620       print_node (file, "attributes", TYPE_ATTRIBUTES (node), indent + 4);
 621
 622       if (INTEGRAL_TYPE_P (node) || code == REAL_TYPE
 623           || code == FIXED_POINT_TYPE)
 624         {
 625           fprintf (file, " precision %d", TYPE_PRECISION (node));
 626           print_node_brief (file, "min", TYPE_MIN_VALUE (node), indent + 4);
 627           print_node_brief (file, "max", TYPE_MAX_VALUE (node), indent + 4);
 628         }
 629
 630       if (code == ENUMERAL_TYPE)
 631         print_node (file, "values", TYPE_VALUES (node), indent + 4);
 632       else if (code == ARRAY_TYPE)
 633         print_node (file, "domain", TYPE_DOMAIN (node), indent + 4);
 634       else if (code == VECTOR_TYPE)
 635         fprintf (file, " nunits %d", (int) TYPE_VECTOR_SUBPARTS (node));
 636       else if (code == RECORD_TYPE
 637                || code == UNION_TYPE
 638                || code == QUAL_UNION_TYPE)
 639         print_node (file, "fields", TYPE_FIELDS (node), indent + 4);
 640       else if (code == FUNCTION_TYPE
 641                || code == METHOD_TYPE)
 642         {
 643           if (TYPE_METHOD_BASETYPE (node))
 644             print_node_brief (file, "method basetype",
 645                               TYPE_METHOD_BASETYPE (node), indent + 4);
 646           print_node (file, "arg-types", TYPE_ARG_TYPES (node), indent + 4);
 647         }
 648       else if (code == OFFSET_TYPE)
 649         print_node_brief (file, "basetype", TYPE_OFFSET_BASETYPE (node),
 650                           indent + 4);
 651
 652       if (TYPE_CONTEXT (node))
 653         print_node_brief (file, "context", TYPE_CONTEXT (node), indent + 4);
 654
 655       lang_hooks.print_type (file, node, indent);
 656
 657       if (TYPE_POINTER_TO (node) || TREE_CHAIN (node))
 658         indent_to (file, indent + 3);
 659
 660       print_node_brief (file, "pointer_to_this", TYPE_POINTER_TO (node),
 661                         indent + 4);
 662       print_node_brief (file, "reference_to_this", TYPE_REFERENCE_TO (node),
 663                         indent + 4);
 664       print_node_brief (file, "chain", TREE_CHAIN (node), indent + 4);
 665       break;
 666
 667     case tcc_expression:
 668     case tcc_comparison:
 669     case tcc_unary:
 670     case tcc_binary:
 671     case tcc_reference:
 672     case tcc_statement:
 673     case tcc_vl_exp:
 674       if (code == BIND_EXPR)
 675         {
 676           print_node (file, "vars", TREE_OPERAND (node, 0), indent + 4);
 677           print_node (file, "body", TREE_OPERAND (node, 1), indent + 4);
 678           print_node (file, "block", TREE_OPERAND (node, 2), indent + 4);
 679           break;
 680         }
 681       if (code == CALL_EXPR)
 682         {
 683           call_expr_arg_iterator iter;
 684           tree arg;
 685           print_node (file, "fn", CALL_EXPR_FN (node), indent + 4);
 686           print_node (file, "static_chain", CALL_EXPR_STATIC_CHAIN (node),
 687                       indent + 4);
 688           i = 0;
 689           FOR_EACH_CALL_EXPR_ARG (arg, iter, node)
 690             {
 691               char temp[10];
 692               sprintf (temp, "arg %d", i);
 693               print_node (file, temp, arg, indent + 4);
 694               i++;
 695             }
 696         }
 697       else
 698         {
 699           len = TREE_OPERAND_LENGTH (node);
 700
 701           for (i = 0; i < len; i++)
 702             {
 703               char temp[10];
 704
 705               sprintf (temp, "arg %d", i);
 706               print_node (file, temp, TREE_OPERAND (node, i), indent + 4);
 707             }
 708         }
 709       if (CODE_CONTAINS_STRUCT (code, TS_COMMON))
 710         print_node (file, "chain", TREE_CHAIN (node), indent + 4);
 711       break;
 712
 713     case tcc_constant:
 714     case tcc_exceptional:
 715       switch (code)
 716         {
 717         case INTEGER_CST:
 718           if (TREE_OVERFLOW (node))
 719             fprintf (file, " overflow");
 720
 721           fprintf (file, " ");
 722           print_dec (node, file, TYPE_SIGN (TREE_TYPE (node)));
 723           break;
 724
 725         case REAL_CST:
 726           {
 727             REAL_VALUE_TYPE d;
 728
 729             if (TREE_OVERFLOW (node))
 730               fprintf (file, " overflow");
 731
 732             d = TREE_REAL_CST (node);
 733             if (REAL_VALUE_ISINF (d))
 734               fprintf (file,  REAL_VALUE_NEGATIVE (d) ? " -Inf" : " Inf");
 735             else if (REAL_VALUE_ISNAN (d))
 736               fprintf (file, " Nan");
 737             else
 738               {
 739                 char string[64];
 740                 real_to_decimal (string, &d, sizeof (string), 0, 1);
 741                 fprintf (file, " %s", string);
 742               }
 743           }
 744           break;
 745
 746         case FIXED_CST:
 747           {
 748             FIXED_VALUE_TYPE f;
 749             char string[64];
 750
 751             if (TREE_OVERFLOW (node))
 752               fprintf (file, " overflow");
 753
 754             f = TREE_FIXED_CST (node);
 755             fixed_to_decimal (string, &f, sizeof (string));
 756             fprintf (file, " %s", string);
 757           }
 758           break;
 759
 760         case VECTOR_CST:
 761           {
 762             char buf[10];
 763             unsigned i;
 764
 765             for (i = 0; i < VECTOR_CST_NELTS (node); ++i)
 766               {
 767                 sprintf (buf, "elt%u: ", i);
 768                 print_node (file, buf, VECTOR_CST_ELT (node, i), indent + 4);
 769               }
 770           }
 771           break;
 772
 773         case COMPLEX_CST:
 774           print_node (file, "real", TREE_REALPART (node), indent + 4);
 775           print_node (file, "imag", TREE_IMAGPART (node), indent + 4);
 776           break;
 777
 778         case STRING_CST:
 779           {
 780             const char *p = TREE_STRING_POINTER (node);
 781             int i = TREE_STRING_LENGTH (node);
 782             fputs (" \"", file);
 783             while (--i >= 0)
 784               {
 785                 char ch = *p++;
 786                 if (ch >= ' ' && ch < 127)
 787                   putc (ch, file);
 788                 else
 789                   fprintf (file, "\\%03o", ch & 0xFF);
 790               }
 791             fputc ('\"', file);
 792           }
 793           break;
 794
 795         case IDENTIFIER_NODE:
 796           lang_hooks.print_identifier (file, node, indent);
 797           break;
 798
 799         case TREE_LIST:
 800           print_node (file, "purpose", TREE_PURPOSE (node), indent + 4);
 801           print_node (file, "value", TREE_VALUE (node), indent + 4);
 802           print_node (file, "chain", TREE_CHAIN (node), indent + 4);
 803           break;
 804
 805         case TREE_VEC:
 806           len = TREE_VEC_LENGTH (node);
 807           for (i = 0; i < len; i++)
 808             if (TREE_VEC_ELT (node, i))
 809               {
 810                 char temp[10];
 811                 sprintf (temp, "elt %d", i);
 812                 print_node (file, temp, TREE_VEC_ELT (node, i), indent + 4);
 813               }
 814           break;
 815
 816         case CONSTRUCTOR:
 817           {
 818             unsigned HOST_WIDE_INT cnt;
 819             tree index, value;
 820             len = vec_safe_length (CONSTRUCTOR_ELTS (node));
 821             fprintf (file, " lngt %d", len);
 822             FOR_EACH_CONSTRUCTOR_ELT (CONSTRUCTOR_ELTS (node),
 823                                       cnt, index, value)
 824               {
 825                 print_node (file, "idx", index, indent + 4);
 826                 print_node (file, "val", value, indent + 4);
 827               }
 828           }
 829           break;
 830
 831         case STATEMENT_LIST:
 832           dump_addr (file, " head ", node->stmt_list.head);
 833           dump_addr (file, " tail ", node->stmt_list.tail);
 834           fprintf (file, " stmts");
 835           {
 836             tree_stmt_iterator i;
 837             for (i = tsi_start (node); !tsi_end_p (i); tsi_next (&i))
 838               {
 839                 /* Not printing the addresses of the (not-a-tree)
 840                    'struct tree_stmt_list_node's.  */
 841                 dump_addr (file, " ", tsi_stmt (i));
 842               }
 843             fprintf (file, "\n");
 844             for (i = tsi_start (node); !tsi_end_p (i); tsi_next (&i))
 845               {
 846                 /* Not printing the addresses of the (not-a-tree)
 847                    'struct tree_stmt_list_node's.  */
 848                 print_node (file, "stmt", tsi_stmt (i), indent + 4);
 849               }
 850           }
 851           break;
 852
 853         case BLOCK:
 854           print_node (file, "vars", BLOCK_VARS (node), indent + 4);
 855           print_node (file, "supercontext", BLOCK_SUPERCONTEXT (node),
 856                       indent + 4);
 857           print_node (file, "subblocks", BLOCK_SUBBLOCKS (node), indent + 4);
 858           print_node (file, "chain", BLOCK_CHAIN (node), indent + 4);
 859           print_node (file, "abstract_origin",
 860                       BLOCK_ABSTRACT_ORIGIN (node), indent + 4);
 861           break;
 862
 863         case SSA_NAME:
 864           print_node_brief (file, "var", SSA_NAME_VAR (node), indent + 4);
 865           fprintf (file, "def_stmt ");
 866           print_gimple_stmt (file, SSA_NAME_DEF_STMT (node), indent + 4, 0);
 867
 868           indent_to (file, indent + 4);
 869           fprintf (file, "version %u", SSA_NAME_VERSION (node));
 870           if (SSA_NAME_OCCURS_IN_ABNORMAL_PHI (node))
 871             fprintf (file, " in-abnormal-phi");
 872           if (SSA_NAME_IN_FREE_LIST (node))
 873             fprintf (file, " in-free-list");
 874
 875           if (SSA_NAME_PTR_INFO (node))
 876             {
 877               indent_to (file, indent + 3);
 878               if (SSA_NAME_PTR_INFO (node))
 879                 dump_addr (file, " ptr-info ", SSA_NAME_PTR_INFO (node));
 880             }
 881           break;
 882
 883         case OMP_CLAUSE:
 884             {
 885               int i;
 886               fprintf (file, " %s",
 887                        omp_clause_code_name[OMP_CLAUSE_CODE (node)]);
 888               for (i = 0; i < omp_clause_num_ops[OMP_CLAUSE_CODE (node)]; i++)
 889                 {
 890                   indent_to (file, indent + 4);
 891                   fprintf (file, "op %d:", i);
 892                   print_node_brief (file, "", OMP_CLAUSE_OPERAND (node, i), 0);
 893                 }
 894             }
 895           break;
 896
 897         case OPTIMIZATION_NODE:
 898           cl_optimization_print (file, indent + 4, TREE_OPTIMIZATION (node));
 899           break;
 900
 901         case TARGET_OPTION_NODE:
 902           cl_target_option_print (file, indent + 4, TREE_TARGET_OPTION (node));
 903           break;
 904         case IMPORTED_DECL:
 905           fprintf (file, " imported declaration");
 906           print_node_brief (file, "associated declaration",
 907                             IMPORTED_DECL_ASSOCIATED_DECL (node),
 908                             indent + 4);
 909           break;
 910
 911         default:
 912           if (EXCEPTIONAL_CLASS_P (node))
 913             lang_hooks.print_xnode (file, node, indent);
 914           break;
 915         }
 916
 917       break;
 918     }
 919
 920   if (EXPR_HAS_LOCATION (node))
 921     {
 922       expanded_location xloc = expand_location (EXPR_LOCATION (node));
 923       indent_to (file, indent+4);
 924       fprintf (file, "%s:%d:%d", xloc.file, xloc.line, xloc.column);
 925     }
 926
 927   fprintf (file, ">");
 928 }
 929
 930
 931 /* Print the node NODE on standard error, for debugging.
 932    Most nodes referred to by this one are printed recursively
 933    down to a depth of six.  */
 934
 935 DEBUG_FUNCTION void
 936 debug_tree (tree node)
 937 {
 938   table = XCNEWVEC (struct bucket *, HASH_SIZE);
 939   print_node (stderr, "", node, 0);
 940   free (table);
 941   table = 0;
 942   putc ('\n', stderr);
 943 }
 944
 945 DEBUG_FUNCTION void
 946 debug_raw (const tree_node &ref)
 947 {
 948   debug_tree (const_cast <tree> (&ref));
 949 }
 950
 951 DEBUG_FUNCTION void
 952 debug_raw (const tree_node *ptr)
 953 {
 954   if (ptr)
 955     debug_raw (*ptr);
 956   else
 957     fprintf (stderr, "<nil>\n");
 958 }
 959
 960 static void
 961 dump_tree_via_hooks (const tree_node *ptr, int options)
 962 {
 963   if (DECL_P (ptr))
 964     lang_hooks.print_decl (stderr, const_cast <tree_node*> (ptr), 0);
 965   else if (TYPE_P (ptr))
 966     lang_hooks.print_type (stderr, const_cast <tree_node*> (ptr), 0);
 967   else if (TREE_CODE (ptr) == IDENTIFIER_NODE)
 968     lang_hooks.print_identifier (stderr, const_cast <tree_node*> (ptr), 0);
 969   else
 970     print_generic_expr (stderr, const_cast <tree_node*> (ptr), options);
 971   fprintf (stderr, "\n");
 972 }
 973
 974 DEBUG_FUNCTION void
 975 debug (const tree_node &ref)
 976 {
 977   dump_tree_via_hooks (&ref, 0);
 978 }
 979
 980 DEBUG_FUNCTION void
 981 debug (const tree_node *ptr)
 982 {
 983   if (ptr)
 984     debug (*ptr);
 985   else
 986     fprintf (stderr, "<nil>\n");
 987 }
 988
 989 DEBUG_FUNCTION void
 990 debug_verbose (const tree_node &ref)
 991 {
 992   dump_tree_via_hooks (&ref, TDF_VERBOSE);
 993 }
 994
 995 DEBUG_FUNCTION void
 996 debug_verbose (const tree_node *ptr)
 997 {
 998   if (ptr)
 999     debug_verbose (*ptr);
1000   else
1001     fprintf (stderr, "<nil>\n");
1002 }
1003
1004 DEBUG_FUNCTION void
1005 debug_head (const tree_node &ref)
1006 {
1007   debug (ref);
1008 }
1009
1010 DEBUG_FUNCTION void
1011 debug_head (const tree_node *ptr)
1012 {
1013   if (ptr)
1014     debug_head (*ptr);
1015   else
1016     fprintf (stderr, "<nil>\n");
1017 }
1018
1019 DEBUG_FUNCTION void
1020 debug_body (const tree_node &ref)
1021 {
1022   if (TREE_CODE (&ref) == FUNCTION_DECL)
1023     dump_function_to_file (const_cast <tree_node*> (&ref), stderr, 0);
1024   else
1025     debug (ref);
1026 }
1027
1028 DEBUG_FUNCTION void
1029 debug_body (const tree_node *ptr)
1030 {
1031   if (ptr)
1032     debug_body (*ptr);
1033   else
1034     fprintf (stderr, "<nil>\n");
1035 }
1036
1037 /* Print the vector of trees VEC on standard error, for debugging.
1038    Most nodes referred to by this one are printed recursively
1039    down to a depth of six.  */
1040
1041 DEBUG_FUNCTION void
1042 debug_raw (vec<tree, va_gc> &ref)
1043 {
1044   tree elt;
1045   unsigned ix;
1046
1047   /* Print the slot this node is in, and its code, and address.  */
1048   fprintf (stderr, "<VEC");
1049   dump_addr (stderr, " ", ref.address ());
1050
1051   FOR_EACH_VEC_ELT (ref, ix, elt)
1052     {
1053       fprintf (stderr, "elt %d ", ix);
1054       debug_raw (elt);
1055     }
1056 }
1057
1058 DEBUG_FUNCTION void
1059 debug (vec<tree, va_gc> &ref)
1060 {
1061   tree elt;
1062   unsigned ix;
1063
1064   /* Print the slot this node is in, and its code, and address.  */
1065   fprintf (stderr, "<VEC");
1066   dump_addr (stderr, " ", ref.address ());
1067
1068   FOR_EACH_VEC_ELT (ref, ix, elt)
1069     {
1070       fprintf (stderr, "elt %d ", ix);
1071       debug (elt);
1072     }
1073 }
1074
1075 DEBUG_FUNCTION void
1076 debug (vec<tree, va_gc> *ptr)
1077 {
1078   if (ptr)
1079     debug (*ptr);
1080   else
1081     fprintf (stderr, "<nil>\n");
1082 }
1083
1084 DEBUG_FUNCTION void
1085 debug_raw (vec<tree, va_gc> *ptr)
1086 {
1087   if (ptr)
1088     debug_raw (*ptr);
1089   else
1090     fprintf (stderr, "<nil>\n");
1091 }
1092
1093 DEBUG_FUNCTION void
1094 debug_vec_tree (vec<tree, va_gc> *vec)
1095 {
1096   debug_raw (vec);
1097 }