gcc/cp/dump.c

   1 /* Tree-dumping functionality for intermediate representation.
   2    Copyright (C) 1999-2017 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 "cp-tree.h"
  25 #include "tree-dump.h"
  26
  27 static void dump_access (dump_info_p, tree);
  28
  29 static void dump_op (dump_info_p, tree);
  30
  31 /* Dump a representation of the accessibility information associated
  32    with T.  */
  33
  34 static void
  35 dump_access (dump_info_p di, tree t)
  36 {
  37   if (TREE_PROTECTED(t))
  38     dump_string_field (di, "accs", "prot");
  39   else if (TREE_PRIVATE(t))
  40     dump_string_field (di, "accs", "priv");
  41   else
  42     dump_string_field (di, "accs", "pub");
  43 }
  44
  45 /* Dump a representation of the specific operator for an overloaded
  46    operator associated with node t.  */
  47
  48 static void
  49 dump_op (dump_info_p di, tree t)
  50 {
  51   switch (DECL_OVERLOADED_OPERATOR_P (t)) {
  52     case NEW_EXPR:
  53       dump_string (di, "new");
  54       break;
  55     case VEC_NEW_EXPR:
  56       dump_string (di, "vecnew");
  57       break;
  58     case DELETE_EXPR:
  59       dump_string (di, "delete");
  60       break;
  61     case VEC_DELETE_EXPR:
  62       dump_string (di, "vecdelete");
  63       break;
  64     case UNARY_PLUS_EXPR:
  65       dump_string (di, "pos");
  66       break;
  67     case NEGATE_EXPR:
  68       dump_string (di, "neg");
  69       break;
  70     case ADDR_EXPR:
  71       dump_string (di, "addr");
  72       break;
  73     case INDIRECT_REF:
  74       dump_string(di, "deref");
  75       break;
  76     case BIT_NOT_EXPR:
  77       dump_string(di, "not");
  78       break;
  79     case TRUTH_NOT_EXPR:
  80       dump_string(di, "lnot");
  81       break;
  82     case PREINCREMENT_EXPR:
  83       dump_string(di, "preinc");
  84       break;
  85     case PREDECREMENT_EXPR:
  86       dump_string(di, "predec");
  87       break;
  88     case PLUS_EXPR:
  89       if (DECL_ASSIGNMENT_OPERATOR_P (t))
  90         dump_string (di, "plusassign");
  91       else
  92         dump_string(di, "plus");
  93       break;
  94     case MINUS_EXPR:
  95       if (DECL_ASSIGNMENT_OPERATOR_P (t))
  96         dump_string (di, "minusassign");
  97       else
  98         dump_string(di, "minus");
  99       break;
 100     case MULT_EXPR:
 101       if (DECL_ASSIGNMENT_OPERATOR_P (t))
 102         dump_string (di, "multassign");
 103       else
 104         dump_string (di, "mult");
 105       break;
 106     case TRUNC_DIV_EXPR:
 107       if (DECL_ASSIGNMENT_OPERATOR_P (t))
 108         dump_string (di, "divassign");
 109       else
 110         dump_string (di, "div");
 111       break;
 112     case TRUNC_MOD_EXPR:
 113       if (DECL_ASSIGNMENT_OPERATOR_P (t))
 114          dump_string (di, "modassign");
 115       else
 116         dump_string (di, "mod");
 117       break;
 118     case BIT_AND_EXPR:
 119       if (DECL_ASSIGNMENT_OPERATOR_P (t))
 120         dump_string (di, "andassign");
 121       else
 122         dump_string (di, "and");
 123       break;
 124     case BIT_IOR_EXPR:
 125       if (DECL_ASSIGNMENT_OPERATOR_P (t))
 126         dump_string (di, "orassign");
 127       else
 128         dump_string (di, "or");
 129       break;
 130     case BIT_XOR_EXPR:
 131       if (DECL_ASSIGNMENT_OPERATOR_P (t))
 132         dump_string (di, "xorassign");
 133       else
 134         dump_string (di, "xor");
 135       break;
 136     case LSHIFT_EXPR:
 137       if (DECL_ASSIGNMENT_OPERATOR_P (t))
 138         dump_string (di, "lshiftassign");
 139       else
 140         dump_string (di, "lshift");
 141       break;
 142     case RSHIFT_EXPR:
 143       if (DECL_ASSIGNMENT_OPERATOR_P (t))
 144         dump_string (di, "rshiftassign");
 145       else
 146         dump_string (di, "rshift");
 147       break;
 148     case EQ_EXPR:
 149       dump_string (di, "eq");
 150       break;
 151     case NE_EXPR:
 152       dump_string (di, "ne");
 153       break;
 154     case LT_EXPR:
 155       dump_string (di, "lt");
 156       break;
 157     case GT_EXPR:
 158       dump_string (di, "gt");
 159       break;
 160     case LE_EXPR:
 161       dump_string (di, "le");
 162       break;
 163     case GE_EXPR:
 164       dump_string (di, "ge");
 165       break;
 166     case TRUTH_ANDIF_EXPR:
 167       dump_string (di, "land");
 168       break;
 169     case TRUTH_ORIF_EXPR:
 170       dump_string (di, "lor");
 171       break;
 172     case COMPOUND_EXPR:
 173       dump_string (di, "compound");
 174       break;
 175     case MEMBER_REF:
 176       dump_string (di, "memref");
 177       break;
 178     case COMPONENT_REF:
 179       dump_string (di, "ref");
 180       break;
 181     case ARRAY_REF:
 182       dump_string (di, "subs");
 183       break;
 184     case POSTINCREMENT_EXPR:
 185       dump_string (di, "postinc");
 186       break;
 187     case POSTDECREMENT_EXPR:
 188       dump_string (di, "postdec");
 189       break;
 190     case CALL_EXPR:
 191       dump_string (di, "call");
 192       break;
 193     case NOP_EXPR:
 194       if (DECL_ASSIGNMENT_OPERATOR_P (t))
 195         dump_string (di, "assign");
 196       break;
 197     default:
 198       break;
 199   }
 200 }
 201
 202 /* Dump information common to statements from STMT.  */
 203
 204 static void
 205 dump_stmt (dump_info_p di, const_tree t)
 206 {
 207   if (EXPR_HAS_LOCATION (t))
 208     dump_int (di, "line", EXPR_LINENO (t));
 209 }
 210
 211 bool
 212 cp_dump_tree (void* dump_info, tree t)
 213 {
 214   enum tree_code code;
 215   dump_info_p di = (dump_info_p) dump_info;
 216
 217   /* Figure out what kind of node this is.  */
 218   code = TREE_CODE (t);
 219
 220   if (DECL_P (t))
 221     {
 222       if (DECL_LANG_SPECIFIC (t) && DECL_LANGUAGE (t) != lang_cplusplus)
 223         dump_string_field (di, "lang", language_to_string (DECL_LANGUAGE (t)));
 224     }
 225
 226   switch (code)
 227     {
 228     case IDENTIFIER_NODE:
 229       if (IDENTIFIER_OPNAME_P (t))
 230         {
 231           dump_string_field (di, "note", "operator");
 232           return true;
 233         }
 234       else if (IDENTIFIER_TYPENAME_P (t))
 235         {
 236           dump_child ("tynm", TREE_TYPE (t));
 237           return true;
 238         }
 239       break;
 240
 241     case OFFSET_TYPE:
 242       dump_string_field (di, "note", "ptrmem");
 243       dump_child ("ptd", TYPE_PTRMEM_POINTED_TO_TYPE (t));
 244       dump_child ("cls", TYPE_PTRMEM_CLASS_TYPE (t));
 245       return true;
 246
 247     case RECORD_TYPE:
 248       if (TYPE_PTRMEMFUNC_P (t))
 249         {
 250           dump_string_field (di, "note", "ptrmem");
 251           dump_child ("ptd", TYPE_PTRMEM_POINTED_TO_TYPE (t));
 252           dump_child ("cls", TYPE_PTRMEM_CLASS_TYPE (t));
 253           return true;
 254         }
 255       /* Fall through.  */
 256
 257     case UNION_TYPE:
 258       /* Is it a type used as a base? */
 259       if (TYPE_CONTEXT (t) && TREE_CODE (TYPE_CONTEXT (t)) == TREE_CODE (t)
 260           && CLASSTYPE_AS_BASE (TYPE_CONTEXT (t)) == t)
 261         {
 262           dump_child ("bfld", TYPE_CONTEXT (t));
 263           return true;
 264         }
 265
 266       if (! MAYBE_CLASS_TYPE_P (t))
 267         break;
 268
 269       dump_child ("vfld", TYPE_VFIELD (t));
 270       if (CLASSTYPE_TEMPLATE_SPECIALIZATION(t))
 271         dump_string(di, "spec");
 272
 273       if (!dump_flag (di, TDF_SLIM, t) && TYPE_BINFO (t))
 274         {
 275           int i;
 276           tree binfo;
 277           tree base_binfo;
 278
 279           for (binfo = TYPE_BINFO (t), i = 0;
 280                BINFO_BASE_ITERATE (binfo, i, base_binfo); ++i)
 281             {
 282               dump_child ("base", BINFO_TYPE (base_binfo));
 283               if (BINFO_VIRTUAL_P (base_binfo))
 284                 dump_string_field (di, "spec", "virt");
 285               dump_access (di, base_binfo);
 286             }
 287         }
 288       break;
 289
 290     case FIELD_DECL:
 291       dump_access (di, t);
 292       if (DECL_MUTABLE_P (t))
 293         dump_string_field (di, "spec", "mutable");
 294       break;
 295
 296     case VAR_DECL:
 297       if (TREE_CODE (CP_DECL_CONTEXT (t)) == RECORD_TYPE)
 298         dump_access (di, t);
 299       if (TREE_STATIC (t) && !TREE_PUBLIC (t))
 300         dump_string_field (di, "link", "static");
 301       break;
 302
 303     case FUNCTION_DECL:
 304       if (!DECL_THUNK_P (t))
 305         {
 306           if (DECL_OVERLOADED_OPERATOR_P (t)) {
 307             dump_string_field (di, "note", "operator");
 308             dump_op (di, t);
 309           }
 310           if (DECL_FUNCTION_MEMBER_P (t))
 311             {
 312               dump_string_field (di, "note", "member");
 313               dump_access (di, t);
 314             }
 315           if (DECL_PURE_VIRTUAL_P (t))
 316             dump_string_field (di, "spec", "pure");
 317           if (DECL_VIRTUAL_P (t))
 318             dump_string_field (di, "spec", "virt");
 319           if (DECL_CONSTRUCTOR_P (t))
 320             dump_string_field (di, "note", "constructor");
 321           if (DECL_DESTRUCTOR_P (t))
 322             dump_string_field (di, "note", "destructor");
 323           if (DECL_CONV_FN_P (t))
 324             dump_string_field (di, "note", "conversion");
 325           if (DECL_GLOBAL_CTOR_P (t))
 326             dump_string_field (di, "note", "global init");
 327           if (DECL_GLOBAL_DTOR_P (t))
 328             dump_string_field (di, "note", "global fini");
 329           if (DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION (t))
 330             dump_string_field (di, "note", "pseudo tmpl");
 331         }
 332       else
 333         {
 334           tree virt = THUNK_VIRTUAL_OFFSET (t);
 335
 336           dump_string_field (di, "note", "thunk");
 337           if (DECL_THIS_THUNK_P (t))
 338             dump_string_field (di, "note", "this adjusting");
 339           else
 340             {
 341               dump_string_field (di, "note", "result adjusting");
 342               if (virt)
 343                 virt = BINFO_VPTR_FIELD (virt);
 344             }
 345           dump_int (di, "fixd", THUNK_FIXED_OFFSET (t));
 346           if (virt)
 347             dump_int (di, "virt", tree_to_shwi (virt));
 348           dump_child ("fn", DECL_INITIAL (t));
 349         }
 350       break;
 351
 352     case NAMESPACE_DECL:
 353       if (DECL_NAMESPACE_ALIAS (t))
 354         dump_child ("alis", DECL_NAMESPACE_ALIAS (t));
 355       else if (!dump_flag (di, TDF_SLIM, t))
 356         dump_child ("dcls", cp_namespace_decls (t));
 357       break;
 358
 359     case TEMPLATE_DECL:
 360       dump_child ("rslt", DECL_TEMPLATE_RESULT (t));
 361       dump_child ("inst", DECL_TEMPLATE_INSTANTIATIONS (t));
 362       dump_child ("spcs", DECL_TEMPLATE_SPECIALIZATIONS (t));
 363       dump_child ("prms", DECL_TEMPLATE_PARMS (t));
 364       break;
 365
 366     case OVERLOAD:
 367       dump_child ("crnt", OVL_CURRENT (t));
 368       dump_child ("chan", OVL_CHAIN (t));
 369       break;
 370
 371     case TRY_BLOCK:
 372       dump_stmt (di, t);
 373       if (CLEANUP_P (t))
 374         dump_string_field (di, "note", "cleanup");
 375       dump_child ("body", TRY_STMTS (t));
 376       dump_child ("hdlr", TRY_HANDLERS (t));
 377       break;
 378
 379     case EH_SPEC_BLOCK:
 380       dump_stmt (di, t);
 381       dump_child ("body", EH_SPEC_STMTS (t));
 382       dump_child ("raises", EH_SPEC_RAISES (t));
 383       break;
 384
 385     case PTRMEM_CST:
 386       dump_child ("clas", PTRMEM_CST_CLASS (t));
 387       dump_child ("mbr", PTRMEM_CST_MEMBER (t));
 388       break;
 389
 390     case THROW_EXPR:
 391       /* These nodes are unary, but do not have code class `1'.  */
 392       dump_child ("op 0", TREE_OPERAND (t, 0));
 393       break;
 394
 395     case AGGR_INIT_EXPR:
 396       {
 397         int i = 0;
 398         tree arg;
 399         aggr_init_expr_arg_iterator iter;
 400         dump_int (di, "ctor", AGGR_INIT_VIA_CTOR_P (t));
 401         dump_child ("fn", AGGR_INIT_EXPR_FN (t));
 402         FOR_EACH_AGGR_INIT_EXPR_ARG (arg, iter, t)
 403           {
 404             char buffer[32];
 405             sprintf (buffer, "%u", i);
 406             dump_child (buffer, arg);
 407             i++;
 408           }
 409         dump_child ("decl", AGGR_INIT_EXPR_SLOT (t));
 410       }
 411       break;
 412
 413     case HANDLER:
 414       dump_stmt (di, t);
 415       dump_child ("parm", HANDLER_PARMS (t));
 416       dump_child ("body", HANDLER_BODY (t));
 417       break;
 418
 419     case MUST_NOT_THROW_EXPR:
 420       dump_stmt (di, t);
 421       dump_child ("body", TREE_OPERAND (t, 0));
 422       dump_child ("cond", MUST_NOT_THROW_COND (t));
 423       break;
 424
 425     case USING_STMT:
 426       dump_stmt (di, t);
 427       dump_child ("nmsp", USING_STMT_NAMESPACE (t));
 428       break;
 429
 430     case CLEANUP_STMT:
 431       dump_stmt (di, t);
 432       dump_child ("decl", CLEANUP_DECL (t));
 433       dump_child ("expr", CLEANUP_EXPR (t));
 434       dump_child ("body", CLEANUP_BODY (t));
 435       break;
 436
 437     case IF_STMT:
 438       dump_stmt (di, t);
 439       dump_child ("cond", IF_COND (t));
 440       dump_child ("then", THEN_CLAUSE (t));
 441       dump_child ("else", ELSE_CLAUSE (t));
 442       break;
 443
 444     case BREAK_STMT:
 445     case CONTINUE_STMT:
 446       dump_stmt (di, t);
 447       break;
 448
 449     case DO_STMT:
 450       dump_stmt (di, t);
 451       dump_child ("body", DO_BODY (t));
 452       dump_child ("cond", DO_COND (t));
 453       break;
 454
 455     case FOR_STMT:
 456       dump_stmt (di, t);
 457       dump_child ("init", FOR_INIT_STMT (t));
 458       dump_child ("cond", FOR_COND (t));
 459       dump_child ("expr", FOR_EXPR (t));
 460       dump_child ("body", FOR_BODY (t));
 461       break;
 462
 463     case RANGE_FOR_STMT:
 464       dump_stmt (di, t);
 465       dump_child ("decl", RANGE_FOR_DECL (t));
 466       dump_child ("expr", RANGE_FOR_EXPR (t));
 467       dump_child ("body", RANGE_FOR_BODY (t));
 468       break;
 469
 470     case SWITCH_STMT:
 471       dump_stmt (di, t);
 472       dump_child ("cond", SWITCH_STMT_COND (t));
 473       dump_child ("body", SWITCH_STMT_BODY (t));
 474       break;
 475
 476     case WHILE_STMT:
 477       dump_stmt (di, t);
 478       dump_child ("cond", WHILE_COND (t));
 479       dump_child ("body", WHILE_BODY (t));
 480       break;
 481
 482     case STMT_EXPR:
 483       dump_child ("stmt", STMT_EXPR_STMT (t));
 484       break;
 485
 486     case EXPR_STMT:
 487       dump_stmt (di, t);
 488       dump_child ("expr", EXPR_STMT_EXPR (t));
 489       break;
 490
 491     default:
 492       break;
 493     }
 494
 495   return c_dump_tree (di, t);
 496 }