gcc/print-tree.c

   1 /* Prints out tree in human readable form - GNU C-compiler
   2    Copyright (C) 1990, 1991, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000
   3    Free Software Foundation, Inc.
   4
   5 This file is part of GNU CC.
   6
   7 GNU CC is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2, or (at your option)
  10 any later version.
  11
  12 GNU CC is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GNU CC; see the file COPYING.  If not, write to
  19 the Free Software Foundation, 59 Temple Place - Suite 330,
  20 Boston, MA 02111-1307, USA.  */
  21
  22
  23 #include "config.h"
  24 #include "system.h"
  25 #include "tree.h"
  26 #include "ggc.h"
  27
  28 /* Define the hash table of nodes already seen.
  29    Such nodes are not repeated; brief cross-references are used.  */
  30
  31 #define HASH_SIZE 37
  32
  33 struct bucket
  34 {
  35   tree node;
  36   struct bucket *next;
  37 };
  38
  39 static struct bucket **table;
  40
  41 /* Print the node NODE on standard error, for debugging.
  42    Most nodes referred to by this one are printed recursively
  43    down to a depth of six.  */
  44
  45 void
  46 debug_tree (node)
  47      tree node;
  48 {
  49   char *object = (char *) oballoc (0);
  50
  51   table = (struct bucket **) oballoc (HASH_SIZE * sizeof (struct bucket *));
  52   bzero ((char *) table, HASH_SIZE * sizeof (struct bucket *));
  53   print_node (stderr, "", node, 0);
  54   table = 0;
  55   obfree (object);
  56   fprintf (stderr, "\n");
  57 }
  58
  59 /* Print a node in brief fashion, with just the code, address and name.  */
  60
  61 void
  62 print_node_brief (file, prefix, node, indent)
  63      FILE *file;
  64      const char *prefix;
  65      tree node;
  66      int indent;
  67 {
  68   char class;
  69
  70   if (node == 0)
  71     return;
  72
  73   class = 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, tree_code_name[(int) TREE_CODE (node)]);
  80   fprintf (file, HOST_PTR_PRINTF, (char *) node);
  81
  82   if (class == 'd')
  83     {
  84       if (DECL_NAME (node))
  85         fprintf (file, " %s", IDENTIFIER_POINTER (DECL_NAME (node)));
  86     }
  87   else if (class == 't')
  88     {
  89       if (TYPE_NAME (node))
  90         {
  91           if (TREE_CODE (TYPE_NAME (node)) == IDENTIFIER_NODE)
  92             fprintf (file, " %s", IDENTIFIER_POINTER (TYPE_NAME (node)));
  93           else if (TREE_CODE (TYPE_NAME (node)) == TYPE_DECL
  94                    && DECL_NAME (TYPE_NAME (node)))
  95             fprintf (file, " %s",
  96                      IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (node))));
  97         }
  98     }
  99   if (TREE_CODE (node) == IDENTIFIER_NODE)
 100     fprintf (file, " %s", IDENTIFIER_POINTER (node));
 101   /* We might as well always print the value of an integer.  */
 102   if (TREE_CODE (node) == INTEGER_CST)
 103     {
 104       if (TREE_CONSTANT_OVERFLOW (node))
 105         fprintf (file, " overflow");
 106
 107       fprintf (file, " ");
 108       if (TREE_INT_CST_HIGH (node) == 0)
 109         fprintf (file, HOST_WIDE_INT_PRINT_UNSIGNED, TREE_INT_CST_LOW (node));
 110       else if (TREE_INT_CST_HIGH (node) == -1
 111                && TREE_INT_CST_LOW (node) != 0)
 112         {
 113           fprintf (file, "-");
 114           fprintf (file, HOST_WIDE_INT_PRINT_UNSIGNED,
 115                    -TREE_INT_CST_LOW (node));
 116         }
 117       else
 118         fprintf (file, HOST_WIDE_INT_PRINT_DOUBLE_HEX,
 119                  TREE_INT_CST_HIGH (node), TREE_INT_CST_LOW (node));
 120     }
 121   if (TREE_CODE (node) == REAL_CST)
 122     {
 123       REAL_VALUE_TYPE d;
 124
 125       if (TREE_OVERFLOW (node))
 126         fprintf (file, " overflow");
 127
 128 #if !defined(REAL_IS_NOT_DOUBLE) || defined(REAL_ARITHMETIC)
 129       d = TREE_REAL_CST (node);
 130       if (REAL_VALUE_ISINF (d))
 131         fprintf (file, " Inf");
 132       else if (REAL_VALUE_ISNAN (d))
 133         fprintf (file, " Nan");
 134       else
 135         {
 136           char string[100];
 137
 138           REAL_VALUE_TO_DECIMAL (d, "%e", string);
 139           fprintf (file, " %s", string);
 140         }
 141 #else
 142       {
 143         int i;
 144         unsigned char *p = (unsigned char *) &TREE_REAL_CST (node);
 145         fprintf (file, " 0x");
 146         for (i = 0; i < sizeof TREE_REAL_CST (node); i++)
 147           fprintf (file, "%02x", *p++);
 148         fprintf (file, "");
 149       }
 150 #endif
 151     }
 152
 153   fprintf (file, ">");
 154 }
 155
 156 void
 157 indent_to (file, column)
 158      FILE *file;
 159      int column;
 160 {
 161   int i;
 162
 163   /* Since this is the long way, indent to desired column.  */
 164   if (column > 0)
 165     fprintf (file, "\n");
 166   for (i = 0; i < column; i++)
 167     fprintf (file, " ");
 168 }
 169 \f
 170 /* Print the node NODE in full on file FILE, preceded by PREFIX,
 171    starting in column INDENT.  */
 172
 173 void
 174 print_node (file, prefix, node, indent)
 175      FILE *file;
 176      const char *prefix;
 177      tree node;
 178      int indent;
 179 {
 180   int hash;
 181   struct bucket *b;
 182   enum machine_mode mode;
 183   char class;
 184   int len;
 185   int first_rtl;
 186   int i;
 187
 188   if (node == 0)
 189     return;
 190
 191   class = TREE_CODE_CLASS (TREE_CODE (node));
 192
 193   /* Don't get too deep in nesting.  If the user wants to see deeper,
 194      it is easy to use the address of a lowest-level node
 195      as an argument in another call to debug_tree.  */
 196
 197   if (indent > 24)
 198     {
 199       print_node_brief (file, prefix, node, indent);
 200       return;
 201     }
 202
 203   if (indent > 8 && (class == 't' || class == 'd'))
 204     {
 205       print_node_brief (file, prefix, node, indent);
 206       return;
 207     }
 208
 209   /* It is unsafe to look at any other filds of an ERROR_MARK node.  */
 210   if (TREE_CODE (node) == ERROR_MARK)
 211     {
 212       print_node_brief (file, prefix, node, indent);
 213       return;
 214     }
 215
 216   hash = ((unsigned long) node) % HASH_SIZE;
 217
 218   /* If node is in the table, just mention its address.  */
 219   for (b = table[hash]; b; b = b->next)
 220     if (b->node == node)
 221       {
 222         print_node_brief (file, prefix, node, indent);
 223         return;
 224       }
 225
 226   /* Add this node to the table.  */
 227   b = (struct bucket *) oballoc (sizeof (struct bucket));
 228   b->node = node;
 229   b->next = table[hash];
 230   table[hash] = b;
 231
 232   /* Indent to the specified column, since this is the long form.  */
 233   indent_to (file, indent);
 234
 235   /* Print the slot this node is in, and its code, and address.  */
 236   fprintf (file, "%s <%s ", prefix, tree_code_name[(int) TREE_CODE (node)]);
 237   fprintf (file, HOST_PTR_PRINTF, (char *) node);
 238
 239   /* Print the name, if any.  */
 240   if (class == 'd')
 241     {
 242       if (DECL_NAME (node))
 243         fprintf (file, " %s", IDENTIFIER_POINTER (DECL_NAME (node)));
 244     }
 245   else if (class == 't')
 246     {
 247       if (TYPE_NAME (node))
 248         {
 249           if (TREE_CODE (TYPE_NAME (node)) == IDENTIFIER_NODE)
 250             fprintf (file, " %s", IDENTIFIER_POINTER (TYPE_NAME (node)));
 251           else if (TREE_CODE (TYPE_NAME (node)) == TYPE_DECL
 252                    && DECL_NAME (TYPE_NAME (node)))
 253             fprintf (file, " %s",
 254                      IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (node))));
 255         }
 256     }
 257   if (TREE_CODE (node) == IDENTIFIER_NODE)
 258     fprintf (file, " %s", IDENTIFIER_POINTER (node));
 259
 260   if (TREE_CODE (node) == INTEGER_CST)
 261     {
 262       if (indent <= 4)
 263         print_node_brief (file, "type", TREE_TYPE (node), indent + 4);
 264     }
 265   else
 266     {
 267       print_node (file, "type", TREE_TYPE (node), indent + 4);
 268       if (TREE_TYPE (node))
 269         indent_to (file, indent + 3);
 270
 271       if (!ggc_p)
 272         {
 273           print_obstack_name ((char *) node, file, "");
 274           indent_to (file, indent + 3);
 275         }
 276     }
 277
 278   /* If a permanent object is in the wrong obstack, or the reverse, warn.  */
 279   if (!ggc_p && object_permanent_p (node) != TREE_PERMANENT (node))
 280     {
 281       if (TREE_PERMANENT (node))
 282         fputs (" !!permanent object in non-permanent obstack!!", file);
 283       else
 284         fputs (" !!non-permanent object in permanent obstack!!", file);
 285       indent_to (file, indent + 3);
 286     }
 287
 288   if (TREE_SIDE_EFFECTS (node))
 289     fputs (" side-effects", file);
 290   if (TREE_READONLY (node))
 291     fputs (" readonly", file);
 292   if (TREE_CONSTANT (node))
 293     fputs (" constant", file);
 294   if (TREE_ADDRESSABLE (node))
 295     fputs (" addressable", file);
 296   if (TREE_THIS_VOLATILE (node))
 297     fputs (" volatile", file);
 298   if (TREE_UNSIGNED (node))
 299     fputs (" unsigned", file);
 300   if (TREE_ASM_WRITTEN (node))
 301     fputs (" asm_written", file);
 302   if (TREE_USED (node))
 303     fputs (" used", file);
 304   if (TREE_NOTHROW (node))
 305     fputs (" nothrow", file);
 306   if (!ggc_p && TREE_PERMANENT (node))
 307     fputs (" permanent", file);
 308   if (TREE_PUBLIC (node))
 309     fputs (" public", file);
 310   if (TREE_PRIVATE (node))
 311     fputs (" private", file);
 312   if (TREE_PROTECTED (node))
 313     fputs (" protected", file);
 314   if (TREE_STATIC (node))
 315     fputs (" static", file);
 316   if (TREE_LANG_FLAG_0 (node))
 317     fputs (" tree_0", file);
 318   if (TREE_LANG_FLAG_1 (node))
 319     fputs (" tree_1", file);
 320   if (TREE_LANG_FLAG_2 (node))
 321     fputs (" tree_2", file);
 322   if (TREE_LANG_FLAG_3 (node))
 323     fputs (" tree_3", file);
 324   if (TREE_LANG_FLAG_4 (node))
 325     fputs (" tree_4", file);
 326   if (TREE_LANG_FLAG_5 (node))
 327     fputs (" tree_5", file);
 328   if (TREE_LANG_FLAG_6 (node))
 329     fputs (" tree_6", file);
 330
 331   /* DECL_ nodes have additional attributes.  */
 332
 333   switch (TREE_CODE_CLASS (TREE_CODE (node)))
 334     {
 335     case 'd':
 336       mode = DECL_MODE (node);
 337
 338       if (DECL_IGNORED_P (node))
 339         fputs (" ignored", file);
 340       if (DECL_ABSTRACT (node))
 341         fputs (" abstract", file);
 342       if (DECL_IN_SYSTEM_HEADER (node))
 343         fputs (" in_system_header", file);
 344       if (DECL_COMMON (node))
 345         fputs (" common", file);
 346       if (DECL_EXTERNAL (node))
 347         fputs (" external", file);
 348       if (DECL_REGISTER (node))
 349         fputs (" regdecl", file);
 350       if (DECL_NONLOCAL (node))
 351         fputs (" nonlocal", file);
 352
 353       if (TREE_CODE (node) == TYPE_DECL && TYPE_DECL_SUPPRESS_DEBUG (node))
 354         fputs (" suppress-debug", file);
 355
 356       if (TREE_CODE (node) == FUNCTION_DECL && DECL_INLINE (node))
 357         fputs (" inline", file);
 358       if (TREE_CODE (node) == FUNCTION_DECL && DECL_BUILT_IN (node))
 359         fputs (" built-in", file);
 360       if (TREE_CODE (node) == FUNCTION_DECL && DECL_BUILT_IN_NONANSI (node))
 361         fputs (" built-in-nonansi", file);
 362
 363       if (TREE_CODE (node) == FIELD_DECL && DECL_PACKED (node))
 364         fputs (" packed", file);
 365       if (TREE_CODE (node) == FIELD_DECL && DECL_BIT_FIELD (node))
 366         fputs (" bit-field", file);
 367
 368       if (TREE_CODE (node) == LABEL_DECL && DECL_TOO_LATE (node))
 369         fputs (" too-late", file);
 370
 371       if (TREE_CODE (node) == VAR_DECL && DECL_IN_TEXT_SECTION (node))
 372         fputs (" in-text-section", file);
 373
 374       if (TREE_CODE (node) == PARM_DECL && DECL_TRANSPARENT_UNION (node))
 375         fputs (" transparent-union", file);
 376
 377       if (DECL_VIRTUAL_P (node))
 378         fputs (" virtual", file);
 379       if (DECL_DEFER_OUTPUT (node))
 380         fputs (" defer-output", file);
 381
 382       if (DECL_LANG_FLAG_0 (node))
 383         fputs (" decl_0", file);
 384       if (DECL_LANG_FLAG_1 (node))
 385         fputs (" decl_1", file);
 386       if (DECL_LANG_FLAG_2 (node))
 387         fputs (" decl_2", file);
 388       if (DECL_LANG_FLAG_3 (node))
 389         fputs (" decl_3", file);
 390       if (DECL_LANG_FLAG_4 (node))
 391         fputs (" decl_4", file);
 392       if (DECL_LANG_FLAG_5 (node))
 393         fputs (" decl_5", file);
 394       if (DECL_LANG_FLAG_6 (node))
 395         fputs (" decl_6", file);
 396       if (DECL_LANG_FLAG_7 (node))
 397         fputs (" decl_7", file);
 398
 399       fprintf (file, " %s", GET_MODE_NAME(mode));
 400
 401       fprintf (file, " file %s line %d",
 402                DECL_SOURCE_FILE (node), DECL_SOURCE_LINE (node));
 403
 404       print_node (file, "size", DECL_SIZE (node), indent + 4);
 405       print_node (file, "unit size", DECL_SIZE_UNIT (node), indent + 4);
 406
 407       if (TREE_CODE (node) != FUNCTION_DECL
 408           || DECL_INLINE (node) || DECL_BUILT_IN (node))
 409         indent_to (file, indent + 3);
 410
 411       if (TREE_CODE (node) != FUNCTION_DECL)
 412         {
 413           fprintf (file, " align %d", DECL_ALIGN (node));
 414           if (TREE_CODE (node) == FIELD_DECL)
 415             fprintf (file, " offset_align %d", DECL_OFFSET_ALIGN (node));
 416         }
 417       else if (DECL_INLINE (node))
 418         {
 419           fprintf (file, " frame_size ");
 420           fprintf (file, HOST_WIDE_INT_PRINT_DEC, DECL_FRAME_SIZE (node));
 421         }
 422       else if (DECL_BUILT_IN (node))
 423         fprintf (file, " built-in %s:%s",
 424                  built_in_class_names[(int) DECL_BUILT_IN_CLASS (node)],
 425                  built_in_names[(int) DECL_FUNCTION_CODE (node)]);
 426
 427       if (DECL_POINTER_ALIAS_SET_KNOWN_P (node))
 428         fprintf (file, " alias set %d", DECL_POINTER_ALIAS_SET (node));
 429
 430       if (TREE_CODE (node) == FIELD_DECL)
 431         {
 432           print_node (file, "offset", DECL_FIELD_OFFSET (node), indent + 4);
 433           print_node (file, "bit offset", DECL_FIELD_BIT_OFFSET (node),
 434                       indent + 4);
 435         }
 436
 437       print_node_brief (file, "context", DECL_CONTEXT (node), indent + 4);
 438       print_node_brief (file, "machine_attributes",
 439                         DECL_MACHINE_ATTRIBUTES (node), indent + 4);
 440       print_node_brief (file, "abstract_origin",
 441                         DECL_ABSTRACT_ORIGIN (node), indent + 4);
 442
 443       print_node (file, "arguments", DECL_ARGUMENTS (node), indent + 4);
 444       print_node (file, "result", DECL_RESULT_FLD (node), indent + 4);
 445       print_node_brief (file, "initial", DECL_INITIAL (node), indent + 4);
 446
 447       print_lang_decl (file, node, indent);
 448
 449       if (DECL_RTL (node) != 0)
 450         {
 451           indent_to (file, indent + 4);
 452           print_rtl (file, DECL_RTL (node));
 453         }
 454
 455       if (TREE_CODE (node) == PARM_DECL && DECL_INCOMING_RTL (node) != 0)
 456         {
 457           indent_to (file, indent + 4);
 458           fprintf (file, "incoming-rtl ");
 459           print_rtl (file, DECL_INCOMING_RTL (node));
 460         }
 461       else if (TREE_CODE (node) == FUNCTION_DECL
 462                && DECL_SAVED_INSNS (node) != 0)
 463         {
 464           indent_to (file, indent + 4);
 465           fprintf (file, "saved-insns ");
 466           fprintf (file, HOST_PTR_PRINTF, (char *) DECL_SAVED_INSNS (node));
 467         }
 468
 469       /* Print the decl chain only if decl is at second level.  */
 470       if (indent == 4)
 471         print_node (file, "chain", TREE_CHAIN (node), indent + 4);
 472       else
 473         print_node_brief (file, "chain", TREE_CHAIN (node), indent + 4);
 474       break;
 475
 476     case 't':
 477       if (TYPE_NO_FORCE_BLK (node))
 478         fputs (" no-force-blk", file);
 479       if (TYPE_STRING_FLAG (node))
 480         fputs (" string-flag", file);
 481       if (TYPE_NEEDS_CONSTRUCTING (node))
 482         fputs (" needs-constructing", file);
 483       if (TYPE_TRANSPARENT_UNION (node))
 484         fputs (" transparent-union", file);
 485       if (TYPE_PACKED (node))
 486         fputs (" packed", file);
 487
 488       if (TYPE_LANG_FLAG_0 (node))
 489         fputs (" type_0", file);
 490       if (TYPE_LANG_FLAG_1 (node))
 491         fputs (" type_1", file);
 492       if (TYPE_LANG_FLAG_2 (node))
 493         fputs (" type_2", file);
 494       if (TYPE_LANG_FLAG_3 (node))
 495         fputs (" type_3", file);
 496       if (TYPE_LANG_FLAG_4 (node))
 497         fputs (" type_4", file);
 498       if (TYPE_LANG_FLAG_5 (node))
 499         fputs (" type_5", file);
 500       if (TYPE_LANG_FLAG_6 (node))
 501         fputs (" type_6", file);
 502
 503       mode = TYPE_MODE (node);
 504       fprintf (file, " %s", GET_MODE_NAME(mode));
 505
 506       print_node (file, "size", TYPE_SIZE (node), indent + 4);
 507       print_node (file, "unit size", TYPE_SIZE_UNIT (node), indent + 4);
 508       indent_to (file, indent + 3);
 509
 510       fprintf (file, " align %d", TYPE_ALIGN (node));
 511       fprintf (file, " symtab %d", TYPE_SYMTAB_ADDRESS (node));
 512       fprintf (file, " alias set %d", TYPE_ALIAS_SET (node));
 513
 514       print_node (file, "attributes", TYPE_ATTRIBUTES (node), indent + 4);
 515
 516       if (TREE_CODE (node) == ARRAY_TYPE || TREE_CODE (node) == SET_TYPE)
 517         print_node (file, "domain", TYPE_DOMAIN (node), indent + 4);
 518       else if (TREE_CODE (node) == INTEGER_TYPE
 519                || TREE_CODE (node) == BOOLEAN_TYPE
 520                || TREE_CODE (node) == CHAR_TYPE)
 521         {
 522           fprintf (file, " precision %d", TYPE_PRECISION (node));
 523           print_node (file, "min", TYPE_MIN_VALUE (node), indent + 4);
 524           print_node (file, "max", TYPE_MAX_VALUE (node), indent + 4);
 525         }
 526       else if (TREE_CODE (node) == ENUMERAL_TYPE)
 527         {
 528           fprintf (file, " precision %d", TYPE_PRECISION (node));
 529           print_node (file, "min", TYPE_MIN_VALUE (node), indent + 4);
 530           print_node (file, "max", TYPE_MAX_VALUE (node), indent + 4);
 531           print_node (file, "values", TYPE_VALUES (node), indent + 4);
 532         }
 533       else if (TREE_CODE (node) == REAL_TYPE)
 534         fprintf (file, " precision %d", TYPE_PRECISION (node));
 535       else if (TREE_CODE (node) == RECORD_TYPE
 536                || TREE_CODE (node) == UNION_TYPE
 537                || TREE_CODE (node) == QUAL_UNION_TYPE)
 538         print_node (file, "fields", TYPE_FIELDS (node), indent + 4);
 539       else if (TREE_CODE (node) == FUNCTION_TYPE || TREE_CODE (node) == METHOD_TYPE)
 540         {
 541           if (TYPE_METHOD_BASETYPE (node))
 542             print_node_brief (file, "method basetype", TYPE_METHOD_BASETYPE (node), indent + 4);
 543           print_node (file, "arg-types", TYPE_ARG_TYPES (node), indent + 4);
 544         }
 545       else if (TREE_CODE (node) == OFFSET_TYPE)
 546         print_node_brief (file, "basetype", TYPE_OFFSET_BASETYPE (node),
 547                           indent + 4);
 548       if (TYPE_CONTEXT (node))
 549         print_node_brief (file, "context", TYPE_CONTEXT (node), indent + 4);
 550
 551       print_lang_type (file, node, indent);
 552
 553       if (TYPE_POINTER_TO (node) || TREE_CHAIN (node))
 554         indent_to (file, indent + 3);
 555       print_node_brief (file, "pointer_to_this", TYPE_POINTER_TO (node), indent + 4);
 556       print_node_brief (file, "reference_to_this", TYPE_REFERENCE_TO (node), indent + 4);
 557       print_node_brief (file, "chain", TREE_CHAIN (node), indent + 4);
 558       break;
 559
 560     case 'b':
 561       print_node (file, "vars", BLOCK_VARS (node), indent + 4);
 562       print_node (file, "supercontext", BLOCK_SUPERCONTEXT (node), indent + 4);
 563       print_node (file, "subblocks", BLOCK_SUBBLOCKS (node), indent + 4);
 564       print_node (file, "chain", BLOCK_CHAIN (node), indent + 4);
 565       print_node (file, "abstract_origin",
 566                   BLOCK_ABSTRACT_ORIGIN (node), indent + 4);
 567       break;
 568
 569     case 'e':
 570     case '<':
 571     case '1':
 572     case '2':
 573     case 'r':
 574     case 's':
 575       if (TREE_CODE (node) == BIND_EXPR)
 576         {
 577           print_node (file, "vars", TREE_OPERAND (node, 0), indent + 4);
 578           print_node (file, "body", TREE_OPERAND (node, 1), indent + 4);
 579           print_node (file, "block", TREE_OPERAND (node, 2), indent + 4);
 580           break;
 581         }
 582
 583       len = tree_code_length[(int) TREE_CODE (node)];
 584       /* Some nodes contain rtx's, not trees,
 585          after a certain point.  Print the rtx's as rtx's.  */
 586       first_rtl = first_rtl_op (TREE_CODE (node));
 587       for (i = 0; i < len; i++)
 588         {
 589           if (i >= first_rtl)
 590             {
 591               indent_to (file, indent + 4);
 592               fprintf (file, "rtl %d ", i);
 593               if (TREE_OPERAND (node, i))
 594                 print_rtl (file, (struct rtx_def *) TREE_OPERAND (node, i));
 595               else
 596                 fprintf (file, "(nil)");
 597               fprintf (file, "\n");
 598             }
 599           else
 600             {
 601               char temp[10];
 602
 603               sprintf (temp, "arg %d", i);
 604               print_node (file, temp, TREE_OPERAND (node, i), indent + 4);
 605             }
 606         }
 607
 608       if (TREE_CODE (node) == EXPR_WITH_FILE_LOCATION)
 609         {
 610           indent_to (file, indent+4);
 611           fprintf (file, "%s:%d:%d",
 612                    (EXPR_WFL_FILENAME_NODE (node ) ?
 613                     EXPR_WFL_FILENAME (node) : "(no file info)"),
 614                    EXPR_WFL_LINENO (node), EXPR_WFL_COLNO (node));
 615         }
 616       print_node (file, "chain", BLOCK_CHAIN (node), indent + 4);
 617       break;
 618
 619     case 'c':
 620     case 'x':
 621       switch (TREE_CODE (node))
 622         {
 623         case INTEGER_CST:
 624           if (TREE_CONSTANT_OVERFLOW (node))
 625             fprintf (file, " overflow");
 626
 627           fprintf (file, " ");
 628           if (TREE_INT_CST_HIGH (node) == 0)
 629             fprintf (file, HOST_WIDE_INT_PRINT_UNSIGNED,
 630                      TREE_INT_CST_LOW (node));
 631           else if (TREE_INT_CST_HIGH (node) == -1
 632                    && TREE_INT_CST_LOW (node) != 0)
 633             {
 634               fprintf (file, "-");
 635               fprintf (file, HOST_WIDE_INT_PRINT_UNSIGNED,
 636                        -TREE_INT_CST_LOW (node));
 637             }
 638           else
 639             fprintf (file, HOST_WIDE_INT_PRINT_DOUBLE_HEX,
 640                      TREE_INT_CST_HIGH (node), TREE_INT_CST_LOW (node));
 641           break;
 642
 643         case REAL_CST:
 644           {
 645             REAL_VALUE_TYPE d;
 646
 647             if (TREE_OVERFLOW (node))
 648               fprintf (file, " overflow");
 649
 650 #if !defined(REAL_IS_NOT_DOUBLE) || defined(REAL_ARITHMETIC)
 651             d = TREE_REAL_CST (node);
 652             if (REAL_VALUE_ISINF (d))
 653               fprintf (file, " Inf");
 654             else if (REAL_VALUE_ISNAN (d))
 655               fprintf (file, " Nan");
 656             else
 657               {
 658                 char string[100];
 659
 660                 REAL_VALUE_TO_DECIMAL (d, "%e", string);
 661                 fprintf (file, " %s", string);
 662               }
 663 #else
 664             {
 665               int i;
 666               unsigned char *p = (unsigned char *) &TREE_REAL_CST (node);
 667               fprintf (file, " 0x");
 668               for (i = 0; i < sizeof TREE_REAL_CST (node); i++)
 669                 fprintf (file, "%02x", *p++);
 670               fprintf (file, "");
 671             }
 672 #endif
 673           }
 674           break;
 675
 676         case COMPLEX_CST:
 677           print_node (file, "real", TREE_REALPART (node), indent + 4);
 678           print_node (file, "imag", TREE_IMAGPART (node), indent + 4);
 679           break;
 680
 681         case STRING_CST:
 682           fprintf (file, " \"%s\"", TREE_STRING_POINTER (node));
 683           /* Print the chain at second level.  */
 684           if (indent == 4)
 685             print_node (file, "chain", TREE_CHAIN (node), indent + 4);
 686           else
 687             print_node_brief (file, "chain", TREE_CHAIN (node), indent + 4);
 688           break;
 689
 690         case IDENTIFIER_NODE:
 691           print_lang_identifier (file, node, indent);
 692           break;
 693
 694         case TREE_LIST:
 695           print_node (file, "purpose", TREE_PURPOSE (node), indent + 4);
 696           print_node (file, "value", TREE_VALUE (node), indent + 4);
 697           print_node (file, "chain", TREE_CHAIN (node), indent + 4);
 698           break;
 699
 700         case TREE_VEC:
 701           len = TREE_VEC_LENGTH (node);
 702           for (i = 0; i < len; i++)
 703             if (TREE_VEC_ELT (node, i))
 704               {
 705                 char temp[10];
 706                 sprintf (temp, "elt %d", i);
 707                 indent_to (file, indent + 4);
 708                 print_node_brief (file, temp, TREE_VEC_ELT (node, i), 0);
 709               }
 710           break;
 711
 712         case OP_IDENTIFIER:
 713           print_node (file, "op1", TREE_PURPOSE (node), indent + 4);
 714           print_node (file, "op2", TREE_VALUE (node), indent + 4);
 715           break;
 716
 717         default:
 718           if (TREE_CODE_CLASS (TREE_CODE (node)) == 'x')
 719             lang_print_xnode (file, node, indent);
 720           break;
 721         }
 722
 723       break;
 724     }
 725
 726   fprintf (file, ">");
 727 }