gcc/cp/dump.c

   1 /* Tree-dumping functionality for intermediate representation.
   2    Copyright (C) 1999-2013 Free Software Foundation, Inc.
   3    Written by Mark Mitchell <mark@codesourcery.com>
   4
   5 This file is part of GCC.
   6
   7 GCC 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 3, or (at your option)
  10 any later version.
  11
  12 GCC 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 GCC; see the file COPYING3.  If not see
  19 <http://www.gnu.org/licenses/>.  */
  20
  21 #include "config.h"
  22 #include "system.h"
  23 #include "coretypes.h"
  24 #include "tm.h"
  25 #include "tree.h"
  26 #include "cp-tree.h"
  27 #include "tree-dump.h"
  28
  29 static void dump_access (dump_info_p, tree);
  30
  31 static void dump_op (dump_info_p, tree);
  32
  33 /* Dump a representation of the accessibility information associated
  34    with T.  */
  35
  36 static void
  37 dump_access (dump_info_p di, tree t)
  38 {
  39   if (TREE_PROTECTED(t))
  40     dump_string_field (di, "accs", "prot");
  41   else if (TREE_PRIVATE(t))
  42     dump_string_field (di, "accs", "priv");
  43   else
  44     dump_string_field (di, "accs", "pub");
  45 }
  46
  47 /* Dump a representation of the specific operator for an overloaded
  48    operator associated with node t.  */
  49
  50 static void
  51 dump_op (dump_info_p di, tree t)
  52 {
  53   switch (DECL_OVERLOADED_OPERATOR_P (t)) {
  54     case NEW_EXPR:
  55       dump_string (di, "new");
  56       break;
  57     case VEC_NEW_EXPR:
  58       dump_string (di, "vecnew");
  59       break;
  60     case DELETE_EXPR:
  61       dump_string (di, "delete");
  62       break;
  63     case VEC_DELETE_EXPR:
  64       dump_string (di, "vecdelete");
  65       break;
  66     case UNARY_PLUS_EXPR:
  67       dump_string (di, "pos");
  68       break;
  69     case NEGATE_EXPR:
  70       dump_string (di, "neg");
  71       break;
  72     case ADDR_EXPR:
  73       dump_string (di, "addr");
  74       break;
  75     case INDIRECT_REF:
  76       dump_string(di, "deref");
  77       break;
  78     case BIT_NOT_EXPR:
  79       dump_string(di, "not");
  80       break;
  81     case TRUTH_NOT_EXPR:
  82       dump_string(di, "lnot");
  83       break;
  84     case PREINCREMENT_EXPR:
  85       dump_string(di, "preinc");
  86       break;
  87     case PREDECREMENT_EXPR:
  88       dump_string(di, "predec");
  89       break;
  90     case PLUS_EXPR:
  91       if (DECL_ASSIGNMENT_OPERATOR_P (t))
  92         dump_string (di, "plusassign");
  93       else
  94         dump_string(di, "plus");
  95       break;
  96     case MINUS_EXPR:
  97       if (DECL_ASSIGNMENT_OPERATOR_P (t))
  98         dump_string (di, "minusassign");
  99       else
 100         dump_string(di, "minus");
 101       break;
 102     case MULT_EXPR:
 103       if (DECL_ASSIGNMENT_OPERATOR_P (t))
 104         dump_string (di, "multassign");
 105       else
 106         dump_string (di, "mult");
 107       break;
 108     case TRUNC_DIV_EXPR:
 109       if (DECL_ASSIGNMENT_OPERATOR_P (t))
 110         dump_string (di, "divassign");
 111       else
 112         dump_string (di, "div");
 113       break;
 114     case TRUNC_MOD_EXPR:
 115       if (DECL_ASSIGNMENT_OPERATOR_P (t))
 116          dump_string (di, "modassign");
 117       else
 118         dump_string (di, "mod");
 119       break;
 120     case BIT_AND_EXPR:
 121       if (DECL_ASSIGNMENT_OPERATOR_P (t))
 122         dump_string (di, "andassign");
 123       else
 124         dump_string (di, "and");
 125       break;
 126     case BIT_IOR_EXPR:
 127       if (DECL_ASSIGNMENT_OPERATOR_P (t))
 128         dump_string (di, "orassign");
 129       else
 130         dump_string (di, "or");
 131       break;
 132     case BIT_XOR_EXPR:
 133       if (DECL_ASSIGNMENT_OPERATOR_P (t))
 134         dump_string (di, "xorassign");
 135       else
 136         dump_string (di, "xor");
 137       break;
 138     case LSHIFT_EXPR:
 139       if (DECL_ASSIGNMENT_OPERATOR_P (t))
 140         dump_string (di, "lshiftassign");
 141       else
 142         dump_string (di, "lshift");
 143       break;
 144     case RSHIFT_EXPR:
 145       if (DECL_ASSIGNMENT_OPERATOR_P (t))
 146         dump_string (di, "rshiftassign");
 147       else
 148         dump_string (di, "rshift");
 149       break;
 150     case EQ_EXPR:
 151       dump_string (di, "eq");
 152       break;
 153     case NE_EXPR:
 154       dump_string (di, "ne");
 155       break;
 156     case LT_EXPR:
 157       dump_string (di, "lt");
 158       break;
 159     case GT_EXPR:
 160       dump_string (di, "gt");
 161       break;
 162     case LE_EXPR:
 163       dump_string (di, "le");
 164       break;
 165     case GE_EXPR:
 166       dump_string (di, "ge");
 167       break;
 168     case TRUTH_ANDIF_EXPR:
 169       dump_string (di, "land");
 170       break;
 171     case TRUTH_ORIF_EXPR:
 172       dump_string (di, "lor");
 173       break;
 174     case COMPOUND_EXPR:
 175       dump_string (di, "compound");
 176       break;
 177     case MEMBER_REF:
 178       dump_string (di, "memref");
 179       break;
 180     case COMPONENT_REF:
 181       dump_string (di, "ref");
 182       break;
 183     case ARRAY_REF:
 184       dump_string (di, "subs");
 185       break;
 186     case POSTINCREMENT_EXPR:
 187       dump_string (di, "postinc");
 188       break;
 189     case POSTDECREMENT_EXPR:
 190       dump_string (di, "postdec");
 191       break;
 192     case CALL_EXPR:
 193       dump_string (di, "call");
 194       break;
 195     case NOP_EXPR:
 196       if (DECL_ASSIGNMENT_OPERATOR_P (t))
 197         dump_string (di, "assign");
 198       break;
 199     default:
 200       break;
 201   }
 202 }
 203
 204 /* Dump information common to statements from STMT.  */
 205
 206 static void
 207 dump_stmt (dump_info_p di, const_tree t)
 208 {
 209   if (EXPR_HAS_LOCATION (t))
 210     dump_int (di, "line", EXPR_LINENO (t));
 211 }
 212
 213 bool
 214 cp_dump_tree (void* dump_info, tree t)
 215 {
 216   enum tree_code code;
 217   dump_info_p di = (dump_info_p) dump_info;
 218
 219   /* Figure out what kind of node this is.  */
 220   code = TREE_CODE (t);
 221
 222   if (DECL_P (t))
 223     {
 224       if (DECL_LANG_SPECIFIC (t) && DECL_LANGUAGE (t) != lang_cplusplus)
 225         dump_string_field (di, "lang", language_to_string (DECL_LANGUAGE (t)));
 226     }
 227
 228   switch (code)
 229     {
 230     case IDENTIFIER_NODE:
 231       if (IDENTIFIER_OPNAME_P (t))
 232         {
 233           dump_string_field (di, "note", "operator");
 234           return true;
 235         }
 236       else if (IDENTIFIER_TYPENAME_P (t))
 237         {
 238           dump_child ("tynm", TREE_TYPE (t));
 239           return true;
 240         }
 241       break;
 242
 243     case OFFSET_TYPE:
 244       dump_string_field (di, "note", "ptrmem");
 245       dump_child ("ptd", TYPE_PTRMEM_POINTED_TO_TYPE (t));
 246       dump_child ("cls", TYPE_PTRMEM_CLASS_TYPE (t));
 247       return true;
 248
 249     case RECORD_TYPE:
 250       if (TYPE_PTRMEMFUNC_P (t))
 251         {
 252           dump_string_field (di, "note", "ptrmem");
 253           dump_child ("ptd", TYPE_PTRMEM_POINTED_TO_TYPE (t));
 254           dump_child ("cls", TYPE_PTRMEM_CLASS_TYPE (t));
 255           return true;
 256         }
 257       /* Fall through.  */
 258
 259     case UNION_TYPE:
 260       /* Is it a type used as a base? */
 261       if (TYPE_CONTEXT (t) && TREE_CODE (TYPE_CONTEXT (t)) == TREE_CODE (t)
 262           && CLASSTYPE_AS_BASE (TYPE_CONTEXT (t)) == t)
 263         {
 264           dump_child ("bfld", TYPE_CONTEXT (t));
 265           return true;
 266         }
 267
 268       if (! MAYBE_CLASS_TYPE_P (t))
 269         break;
 270
 271       dump_child ("vfld", TYPE_VFIELD (t));
 272       if (CLASSTYPE_TEMPLATE_SPECIALIZATION(t))
 273         dump_string(di, "spec");
 274
 275       if (!dump_flag (di, TDF_SLIM, t) && TYPE_BINFO (t))
 276         {
 277           int i;
 278           tree binfo;
 279           tree base_binfo;
 280
 281           for (binfo = TYPE_BINFO (t), i = 0;
 282                BINFO_BASE_ITERATE (binfo, i, base_binfo); ++i)
 283             {
 284               dump_child ("base", BINFO_TYPE (base_binfo));
 285               if (BINFO_VIRTUAL_P (base_binfo))
 286                 dump_string_field (di, "spec", "virt");
 287               dump_access (di, base_binfo);
 288             }
 289         }
 290       break;
 291
 292     case FIELD_DECL:
 293       dump_access (di, t);
 294       if (DECL_MUTABLE_P (t))
 295         dump_string_field (di, "spec", "mutable");
 296       break;
 297
 298     case VAR_DECL:
 299       if (TREE_CODE (CP_DECL_CONTEXT (t)) == RECORD_TYPE)
 300         dump_access (di, t);
 301       if (TREE_STATIC (t) && !TREE_PUBLIC (t))
 302         dump_string_field (di, "link", "static");
 303       break;
 304
 305     case FUNCTION_DECL:
 306       if (!DECL_THUNK_P (t))
 307         {
 308           if (DECL_OVERLOADED_OPERATOR_P (t)) {
 309             dump_string_field (di, "note", "operator");
 310             dump_op (di, t);
 311           }
 312           if (DECL_FUNCTION_MEMBER_P (t))
 313             {
 314               dump_string_field (di, "note", "member");
 315               dump_access (di, t);
 316             }
 317           if (DECL_PURE_VIRTUAL_P (t))
 318             dump_string_field (di, "spec", "pure");
 319           if (DECL_VIRTUAL_P (t))
 320             dump_string_field (di, "spec", "virt");
 321           if (DECL_CONSTRUCTOR_P (t))
 322             dump_string_field (di, "note", "constructor");
 323           if (DECL_DESTRUCTOR_P (t))
 324             dump_string_field (di, "note", "destructor");
 325           if (DECL_CONV_FN_P (t))
 326             dump_string_field (di, "note", "conversion");
 327           if (DECL_GLOBAL_CTOR_P (t))
 328             dump_string_field (di, "note", "global init");
 329           if (DECL_GLOBAL_DTOR_P (t))
 330             dump_string_field (di, "note", "global fini");
 331           if (DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION (t))
 332             dump_string_field (di, "note", "pseudo tmpl");
 333         }
 334       else
 335         {
 336           tree virt = THUNK_VIRTUAL_OFFSET (t);
 337
 338           dump_string_field (di, "note", "thunk");
 339           if (DECL_THIS_THUNK_P (t))
 340             dump_string_field (di, "note", "this adjusting");
 341           else
 342             {
 343               dump_string_field (di, "note", "result adjusting");
 344               if (virt)
 345                 virt = BINFO_VPTR_FIELD (virt);
 346             }
 347           dump_int (di, "fixd", THUNK_FIXED_OFFSET (t));
 348           if (virt)
 349             dump_int (di, "virt", tree_low_cst (virt, 0));
 350           dump_child ("fn", DECL_INITIAL (t));
 351         }
 352       break;
 353
 354     case NAMESPACE_DECL:
 355       if (DECL_NAMESPACE_ALIAS (t))
 356         dump_child ("alis", DECL_NAMESPACE_ALIAS (t));
 357       else if (!dump_flag (di, TDF_SLIM, t))
 358         dump_child ("dcls", cp_namespace_decls (t));
 359       break;
 360
 361     case TEMPLATE_DECL:
 362       dump_child ("rslt", DECL_TEMPLATE_RESULT (t));
 363       dump_child ("inst", DECL_TEMPLATE_INSTANTIATIONS (t));
 364       dump_child ("spcs", DECL_TEMPLATE_SPECIALIZATIONS (t));
 365       dump_child ("prms", DECL_TEMPLATE_PARMS (t));
 366       break;
 367
 368     case OVERLOAD:
 369       dump_child ("crnt", OVL_CURRENT (t));
 370       dump_child ("chan", OVL_CHAIN (t));
 371       break;
 372
 373     case TRY_BLOCK:
 374       dump_stmt (di, t);
 375       if (CLEANUP_P (t))
 376         dump_string_field (di, "note", "cleanup");
 377       dump_child ("body", TRY_STMTS (t));
 378       dump_child ("hdlr", TRY_HANDLERS (t));
 379       break;
 380
 381     case EH_SPEC_BLOCK:
 382       dump_stmt (di, t);
 383       dump_child ("body", EH_SPEC_STMTS (t));
 384       dump_child ("raises", EH_SPEC_RAISES (t));
 385       break;
 386
 387     case PTRMEM_CST:
 388       dump_child ("clas", PTRMEM_CST_CLASS (t));
 389       dump_child ("mbr", PTRMEM_CST_MEMBER (t));
 390       break;
 391
 392     case THROW_EXPR:
 393       /* These nodes are unary, but do not have code class `1'.  */
 394       dump_child ("op 0", TREE_OPERAND (t, 0));
 395       break;
 396
 397     case AGGR_INIT_EXPR:
 398       {
 399         int i = 0;
 400         tree arg;
 401         aggr_init_expr_arg_iterator iter;
 402         dump_int (di, "ctor", AGGR_INIT_VIA_CTOR_P (t));
 403         dump_child ("fn", AGGR_INIT_EXPR_FN (t));
 404         FOR_EACH_AGGR_INIT_EXPR_ARG (arg, iter, t)
 405           {
 406             char buffer[32];
 407             sprintf (buffer, "%u", i);
 408             dump_child (buffer, arg);
 409             i++;
 410           }
 411         dump_child ("decl", AGGR_INIT_EXPR_SLOT (t));
 412       }
 413       break;
 414
 415     case HANDLER:
 416       dump_stmt (di, t);
 417       dump_child ("parm", HANDLER_PARMS (t));
 418       dump_child ("body", HANDLER_BODY (t));
 419       break;
 420
 421     case MUST_NOT_THROW_EXPR:
 422       dump_stmt (di, t);
 423       dump_child ("body", TREE_OPERAND (t, 0));
 424       dump_child ("cond", MUST_NOT_THROW_COND (t));
 425       break;
 426
 427     case USING_STMT:
 428       dump_stmt (di, t);
 429       dump_child ("nmsp", USING_STMT_NAMESPACE (t));
 430       break;
 431
 432     case CLEANUP_STMT:
 433       dump_stmt (di, t);
 434       dump_child ("decl", CLEANUP_DECL (t));
 435       dump_child ("expr", CLEANUP_EXPR (t));
 436       dump_child ("body", CLEANUP_BODY (t));
 437       break;
 438
 439     case IF_STMT:
 440       dump_stmt (di, t);
 441       dump_child ("cond", IF_COND (t));
 442       dump_child ("then", THEN_CLAUSE (t));
 443       dump_child ("else", ELSE_CLAUSE (t));
 444       break;
 445
 446     case BREAK_STMT:
 447     case CONTINUE_STMT:
 448       dump_stmt (di, t);
 449       break;
 450
 451     case DO_STMT:
 452       dump_stmt (di, t);
 453       dump_child ("body", DO_BODY (t));
 454       dump_child ("cond", DO_COND (t));
 455       break;
 456
 457     case FOR_STMT:
 458       dump_stmt (di, t);
 459       dump_child ("init", FOR_INIT_STMT (t));
 460       dump_child ("cond", FOR_COND (t));
 461       dump_child ("expr", FOR_EXPR (t));
 462       dump_child ("body", FOR_BODY (t));
 463       break;
 464
 465     case RANGE_FOR_STMT:
 466       dump_stmt (di, t);
 467       dump_child ("decl", RANGE_FOR_DECL (t));
 468       dump_child ("expr", RANGE_FOR_EXPR (t));
 469       dump_child ("body", RANGE_FOR_BODY (t));
 470       break;
 471
 472     case SWITCH_STMT:
 473       dump_stmt (di, t);
 474       dump_child ("cond", SWITCH_STMT_COND (t));
 475       dump_child ("body", SWITCH_STMT_BODY (t));
 476       break;
 477
 478     case WHILE_STMT:
 479       dump_stmt (di, t);
 480       dump_child ("cond", WHILE_COND (t));
 481       dump_child ("body", WHILE_BODY (t));
 482       break;
 483
 484     case STMT_EXPR:
 485       dump_child ("stmt", STMT_EXPR_STMT (t));
 486       break;
 487
 488     case EXPR_STMT:
 489       dump_stmt (di, t);
 490       dump_child ("expr", EXPR_STMT_EXPR (t));
 491       break;
 492
 493     default:
 494       break;
 495     }
 496
 497   return c_dump_tree (di, t);
 498 }