nsz Git - libfirm/blob - ir/ir/irio.c

   1 /*
   2  * Copyright (C) 1995-2009 University of Karlsruhe.  All right reserved.
   3  *
   4  * This file is part of libFirm.
   5  *
   6  * This file may be distributed and/or modified under the terms of the
   7  * GNU General Public License version 2 as published by the Free Software
   8  * Foundation and appearing in the file LICENSE.GPL included in the
   9  * packaging of this file.
  10  *
  11  * Licensees holding valid libFirm Professional Edition licenses may use
  12  * this file in accordance with the libFirm Commercial License.
  13  * Agreement provided with the Software.
  14  *
  15  * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
  16  * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  17  * PURPOSE.
  18  */
  19
  20 /**
  21  * @file
  22  * @brief   Write textual representation of firm to file.
  23  * @author  Moritz Kroll
  24  * @version $Id$
  25  */
  26 #include "config.h"
  27
  28 #include <string.h>
  29
  30 #include "irio.h"
  31
  32 #include "irnode_t.h"
  33 #include "irprog.h"
  34 #include "irgraph_t.h"
  35 #include "ircons.h"
  36 #include "irgmod.h"
  37 #include "irflag_t.h"
  38 #include "irgwalk.h"
  39 #include "tv.h"
  40 #include "array.h"
  41 #include "error.h"
  42 #include "adt/set.h"
  43
  44 #define SYMERROR ((unsigned) ~0)
  45
  46 typedef struct io_env_t
  47 {
  48         FILE *file;
  49         set *idset;               /**< id_entry set, which maps from file ids to new Firm elements */
  50         int ignoreblocks;
  51         int line, col;
  52         ir_type **fixedtypes;
  53 } io_env_t;
  54
  55 typedef struct lex_state_t
  56 {
  57         long offs;
  58         int line, col;
  59 } lex_state_t;
  60
  61 typedef enum typetag_t
  62 {
  63         tt_align,
  64         tt_allocation,
  65         tt_builtin,
  66         tt_cond_kind,
  67         tt_cond_jmp_predicate,
  68         tt_initializer,
  69         tt_iro,
  70         tt_keyword,
  71         tt_peculiarity,
  72         tt_pin_state,
  73         tt_tpo,
  74         tt_type_state,
  75         tt_variability,
  76         tt_visibility,
  77         tt_volatility
  78 } typetag_t;
  79
  80 typedef enum keyword_t
  81 {
  82         kw_constirg,
  83         kw_entity,
  84         kw_frametype,
  85         kw_irg,
  86         kw_valuetype,
  87         kw_type,
  88         kw_typegraph
  89 } keyword_t;
  90
  91 typedef struct symbol_t
  92 {
  93         const char *str;      /**< The name of this symbol. */
  94         typetag_t   typetag;  /**< The type tag of this symbol. */
  95         unsigned    code;     /**< The value of this symbol. */
  96 } symbol_t;
  97
  98 typedef struct id_entry
  99 {
 100         long id;
 101         void *elem;
 102 } id_entry;
 103
 104 /** The symbol table, a set of symbol_t elements. */
 105 static set *symtbl;
 106
 107
 108 /**
 109  * Calculate a hash value for a string.
 110  */
 111 static unsigned string_hash(const char *str, int len)
 112 {
 113         return str[0] * 27893 ^ str[len-1] * 81 ^ str[len >> 1];
 114 }
 115
 116 /**
 117  * Compare two symbol table entries.
 118  */
 119 static int symbol_cmp(const void *elt, const void *key, size_t size)
 120 {
 121         int res;
 122         const symbol_t *entry = (const symbol_t *) elt;
 123         const symbol_t *keyentry = (const symbol_t *) key;
 124         (void) size;
 125         res = entry->typetag - keyentry->typetag;
 126         if(res) return res;
 127         return strcmp(entry->str, keyentry->str);
 128 }
 129
 130 static int id_cmp(const void *elt, const void *key, size_t size)
 131 {
 132         const id_entry *entry = (const id_entry *) elt;
 133         const id_entry *keyentry = (const id_entry *) key;
 134         (void) size;
 135         return entry->id - keyentry->id;
 136 }
 137
 138 /** Initializes the symbol table. May be called more than once without problems. */
 139 static void symtbl_init(void)
 140 {
 141         symbol_t key;
 142
 143         /* Only initialize once */
 144         if(symtbl != NULL)
 145                 return;
 146
 147         symtbl = new_set(symbol_cmp, 256);
 148
 149 #define INSERT(s, tt, cod)                                       \
 150         key.str = (s);                                               \
 151         key.typetag = (tt);                                          \
 152         key.code = (cod);                                            \
 153         set_insert(symtbl, &key, sizeof(key), string_hash(s, sizeof(s)-1) + tt * 17)
 154
 155 #define INSERTENUM(tt, e) INSERT(#e, tt, e)
 156 #define INSERTKEYWORD(k) INSERT(#k, tt_keyword, kw_##k)
 157
 158         INSERT("array", tt_tpo, tpo_array);
 159         INSERT("class", tt_tpo, tpo_class);
 160         INSERT("method", tt_tpo, tpo_method);
 161         INSERT("pointer", tt_tpo, tpo_pointer);
 162         INSERT("primitive", tt_tpo, tpo_primitive);
 163         INSERT("struct", tt_tpo, tpo_struct);
 164         INSERT("union", tt_tpo, tpo_union);
 165         INSERT("Unknown", tt_tpo, tpo_unknown);
 166
 167         INSERTKEYWORD(constirg);
 168         INSERTKEYWORD(entity);
 169         INSERTKEYWORD(frametype);
 170         INSERTKEYWORD(irg);
 171         INSERTKEYWORD(valuetype);
 172         INSERTKEYWORD(type);
 173         INSERTKEYWORD(typegraph);
 174
 175 #include "gen_irio_lex.inl"
 176
 177         INSERTENUM(tt_align, align_non_aligned);
 178         INSERTENUM(tt_align, align_is_aligned);
 179
 180         INSERTENUM(tt_allocation, allocation_automatic);
 181         INSERTENUM(tt_allocation, allocation_parameter);
 182         INSERTENUM(tt_allocation, allocation_dynamic);
 183         INSERTENUM(tt_allocation, allocation_static);
 184
 185         INSERTENUM(tt_builtin, ir_bk_trap);
 186         INSERTENUM(tt_builtin, ir_bk_debugbreak);
 187         INSERTENUM(tt_builtin, ir_bk_return_address);
 188         INSERTENUM(tt_builtin, ir_bk_frame_addess);
 189         INSERTENUM(tt_builtin, ir_bk_prefetch);
 190         INSERTENUM(tt_builtin, ir_bk_ffs);
 191         INSERTENUM(tt_builtin, ir_bk_clz);
 192         INSERTENUM(tt_builtin, ir_bk_ctz);
 193         INSERTENUM(tt_builtin, ir_bk_popcount);
 194         INSERTENUM(tt_builtin, ir_bk_parity);
 195         INSERTENUM(tt_builtin, ir_bk_bswap);
 196         INSERTENUM(tt_builtin, ir_bk_inport);
 197         INSERTENUM(tt_builtin, ir_bk_outport);
 198         INSERTENUM(tt_builtin, ir_bk_inner_trampoline);
 199
 200         INSERTENUM(tt_cond_kind, dense);
 201         INSERTENUM(tt_cond_kind, fragmentary);
 202
 203         INSERTENUM(tt_cond_jmp_predicate, COND_JMP_PRED_NONE);
 204         INSERTENUM(tt_cond_jmp_predicate, COND_JMP_PRED_TRUE);
 205         INSERTENUM(tt_cond_jmp_predicate, COND_JMP_PRED_FALSE);
 206
 207         INSERTENUM(tt_initializer, IR_INITIALIZER_CONST);
 208         INSERTENUM(tt_initializer, IR_INITIALIZER_TARVAL);
 209         INSERTENUM(tt_initializer, IR_INITIALIZER_NULL);
 210         INSERTENUM(tt_initializer, IR_INITIALIZER_COMPOUND);
 211
 212         INSERTENUM(tt_peculiarity, peculiarity_description);
 213         INSERTENUM(tt_peculiarity, peculiarity_inherited);
 214         INSERTENUM(tt_peculiarity, peculiarity_existent);
 215
 216         INSERTENUM(tt_pin_state, op_pin_state_floats);
 217         INSERTENUM(tt_pin_state, op_pin_state_pinned);
 218         INSERTENUM(tt_pin_state, op_pin_state_exc_pinned);
 219         INSERTENUM(tt_pin_state, op_pin_state_mem_pinned);
 220
 221         INSERTENUM(tt_type_state, layout_undefined);
 222         INSERTENUM(tt_type_state, layout_fixed);
 223
 224         INSERTENUM(tt_variability, variability_uninitialized);
 225         INSERTENUM(tt_variability, variability_initialized);
 226         INSERTENUM(tt_variability, variability_part_constant);
 227         INSERTENUM(tt_variability, variability_constant);
 228
 229         INSERTENUM(tt_visibility, visibility_local);
 230         INSERTENUM(tt_visibility, visibility_external_visible);
 231         INSERTENUM(tt_visibility, visibility_external_allocated);
 232
 233         INSERTENUM(tt_volatility, volatility_non_volatile);
 234         INSERTENUM(tt_volatility, volatility_is_volatile);
 235
 236
 237 #undef INSERTENUM
 238 #undef INSERT
 239 }
 240
 241 /** Returns the according symbol value for the given string and tag, or SYMERROR if none was found. */
 242 static unsigned symbol(const char *str, typetag_t typetag)
 243 {
 244         symbol_t key, *entry;
 245
 246         key.str = str;
 247         key.typetag = typetag;
 248
 249         entry = set_find(symtbl, &key, sizeof(key), string_hash(str, strlen(str)) + typetag * 17);
 250         return entry ? entry->code : SYMERROR;
 251 }
 252
 253 static void *get_id(io_env_t *env, long id)
 254 {
 255         id_entry key, *entry;
 256         key.id = id;
 257
 258         entry = set_find(env->idset, &key, sizeof(key), (unsigned) id);
 259         return entry ? entry->elem : NULL;
 260 }
 261
 262 static void set_id(io_env_t *env, long id, void *elem)
 263 {
 264         id_entry key;
 265         key.id = id;
 266         key.elem = elem;
 267         set_insert(env->idset, &key, sizeof(key), (unsigned) id);
 268 }
 269
 270 static void write_mode(io_env_t *env, ir_mode *mode)
 271 {
 272         fputs(get_mode_name(mode), env->file);
 273         fputc(' ', env->file);
 274 }
 275
 276 static void write_tarval(io_env_t *env, tarval *tv)
 277 {
 278         char buf[1024];
 279         write_mode(env, get_tarval_mode(tv));
 280         tarval_snprintf(buf, sizeof(buf), tv);
 281         fputs(buf, env->file);
 282         fputc(' ', env->file);
 283 }
 284
 285 static void write_align(io_env_t *env, ir_node *irn)
 286 {
 287         ir_align align;
 288
 289         if(is_Load(irn)) align = get_Load_align(irn);
 290         else if(is_Store(irn)) align = get_Store_align(irn);
 291         else assert(0 && "Invalid optype for write_align");
 292
 293         fputs(get_align_name(align), env->file);
 294         fputc(' ', env->file);
 295 }
 296
 297 static void write_builtin_kind(io_env_t *env, ir_node *irn)
 298 {
 299         fputs(get_builtin_kind_name(get_Builtin_kind(irn)), env->file);
 300         fputc(' ', env->file);
 301 }
 302
 303 static void write_cond_kind(io_env_t *env, ir_node *irn)
 304 {
 305         fputs(get_cond_kind_name(get_Cond_kind(irn)), env->file);
 306         fputc(' ', env->file);
 307 }
 308
 309 static void write_cond_jmp_predicate(io_env_t *env, ir_node *irn)
 310 {
 311         fputs(get_cond_jmp_predicate_name(get_Cond_jmp_pred(irn)), env->file);
 312         fputc(' ', env->file);
 313 }
 314
 315 static void write_initializer(io_env_t *env, ir_initializer_t *ini)
 316 {
 317         FILE *f = env->file;
 318         ir_initializer_kind_t ini_kind = get_initializer_kind(ini);
 319
 320         fputs(get_initializer_kind_name(ini_kind), f);
 321         fputc(' ', f);
 322
 323         switch(ini_kind)
 324         {
 325                 case IR_INITIALIZER_CONST:
 326                         fprintf(f, "%ld ", get_irn_node_nr(get_initializer_const_value(ini)));
 327                         break;
 328
 329                 case IR_INITIALIZER_TARVAL:
 330                         write_tarval(env, get_initializer_tarval_value(ini));
 331                         break;
 332
 333                 case IR_INITIALIZER_NULL:
 334                         break;
 335
 336                 case IR_INITIALIZER_COMPOUND:
 337                 {
 338                         unsigned i, n = get_initializer_compound_n_entries(ini);
 339                         fprintf(f, "%d ", n);
 340                         for(i = 0; i < n; i++)
 341                                 write_initializer(env, get_initializer_compound_value(ini, i));
 342                         break;
 343                 }
 344
 345                 default:
 346                         panic("Unknown initializer kind");
 347         }
 348 }
 349
 350 static void write_pin_state(io_env_t *env, ir_node *irn)
 351 {
 352         fputs(get_op_pin_state_name(get_irn_pinned(irn)), env->file);
 353         fputc(' ', env->file);
 354 }
 355
 356 static void write_volatility(io_env_t *env, ir_node *irn)
 357 {
 358         ir_volatility vol;
 359
 360         if(is_Load(irn)) vol = get_Load_volatility(irn);
 361         else if(is_Store(irn)) vol = get_Store_volatility(irn);
 362         else assert(0 && "Invalid optype for write_volatility");
 363
 364         fputs(get_volatility_name(vol), env->file);
 365         fputc(' ', env->file);
 366 }
 367
 368 static void export_type_common(io_env_t *env, ir_type *tp)
 369 {
 370         fprintf(env->file, "\t%s %ld %s \"%s\" %u %u %s %s ",
 371                         is_frame_type(tp) ? "frametype" : is_value_param_type(tp) ? "valuetype" : "type",
 372                         get_type_nr(tp),
 373                         get_type_tpop_name(tp),
 374                         get_type_name(tp),
 375                         get_type_size_bytes(tp),
 376                         get_type_alignment_bytes(tp),
 377                         get_type_state_name(get_type_state(tp)),
 378                         get_visibility_name(get_type_visibility(tp)));
 379 }
 380
 381 static void export_type_pre(io_env_t *env, ir_type *tp)
 382 {
 383         FILE *f = env->file;
 384         int i;
 385
 386         // skip types to be handled by post walker
 387         switch(get_type_tpop_code(tp))
 388         {
 389                 case tpo_array:
 390                 case tpo_method:
 391                 case tpo_pointer:
 392                         return;
 393         }
 394
 395         export_type_common(env, tp);
 396
 397         switch(get_type_tpop_code(tp))
 398         {
 399                 case tpo_class:
 400                         /* TODO: inheritance stuff not supported yet */
 401                         printf("Inheritance of classes not supported yet!\n");
 402                         break;
 403
 404                 case tpo_primitive:
 405                         write_mode(env, get_type_mode(tp));
 406                         break;
 407
 408                 case tpo_struct:
 409                         break;
 410
 411                 case tpo_union:
 412                         break;
 413
 414                 case tpo_unknown:
 415                         break;
 416
 417                 default:
 418                         printf("export_type_pre: Unknown type code \"%s\".\n", get_type_tpop_name(tp));
 419                         break;
 420         }
 421         fputc('\n', f);
 422 }
 423
 424 static void export_type_post(io_env_t *env, ir_type *tp)
 425 {
 426         FILE *f = env->file;
 427         int i;
 428
 429         // skip types already handled by pre walker
 430         switch(get_type_tpop_code(tp))
 431         {
 432                 case tpo_class:
 433                 case tpo_primitive:
 434                 case tpo_struct:
 435                 case tpo_union:
 436                 case tpo_unknown:
 437                         return;
 438         }
 439
 440         export_type_common(env, tp);
 441
 442         switch(get_type_tpop_code(tp))
 443         {
 444                 case tpo_array:
 445                 {
 446                         int n = get_array_n_dimensions(tp);
 447                         fprintf(f, "%i %ld ", n, get_type_nr(get_array_element_type(tp)));
 448                         for(i = 0; i < n; i++)
 449                         {
 450                                 ir_node *lower = get_array_lower_bound(tp, i);
 451                                 ir_node *upper = get_array_upper_bound(tp, i);
 452
 453                                 if(is_Const(lower)) fprintf(f, "%ld ", get_tarval_long(get_Const_tarval(lower)));
 454                                 else panic("Lower array bound is not constant");
 455
 456                                 if(is_Const(upper)) fprintf(f, "%ld ", get_tarval_long(get_Const_tarval(upper)));
 457                                 else if(is_Unknown(upper)) fputs("unknown ", f);
 458                                 else panic("Upper array bound is not constant");
 459                         }
 460                         break;
 461                 }
 462
 463                 case tpo_method:
 464                 {
 465                         int nparams = get_method_n_params(tp);
 466                         int nresults = get_method_n_ress(tp);
 467                         fprintf(f, "0x%X 0x%X %i %i ", get_method_calling_convention(tp),
 468                                 get_method_additional_properties(tp), nparams, nresults);
 469                         for(i = 0; i < nparams; i++)
 470                                 fprintf(f, "%ld ", get_type_nr(get_method_param_type(tp, i)));
 471                         for(i = 0; i < nresults; i++)
 472                                 fprintf(f, "%ld ", get_type_nr(get_method_res_type(tp, i)));
 473                         fprintf(f, "%d ", get_method_first_variadic_param_index(tp));
 474                         break;
 475                 }
 476
 477                 case tpo_pointer:
 478                         write_mode(env, get_type_mode(tp));
 479                         fprintf(f, "%ld ", get_type_nr(get_pointer_points_to_type(tp)));
 480                         break;
 481
 482                 default:
 483                         printf("export_type: Unknown type code \"%s\".\n", get_type_tpop_name(tp));
 484                         break;
 485         }
 486         fputc('\n', f);
 487 }
 488
 489 static void export_entity(io_env_t *env, ir_entity *ent)
 490 {
 491         ir_type *owner = get_entity_owner(ent);
 492         fprintf(env->file, "\tentity %ld \"%s\" \"%s\" %ld %ld %d %u %s %s %s %s %s ",
 493                         get_entity_nr(ent),
 494                         get_entity_name(ent),
 495                         ent->ld_name ? get_id_str(ent->ld_name) : "",
 496                         get_type_nr(get_entity_type(ent)),
 497                         get_type_nr(owner),
 498                         get_entity_offset(ent),
 499                         (unsigned) get_entity_offset_bits_remainder(ent),
 500                         get_allocation_name(get_entity_allocation(ent)),
 501                         get_visibility_name(get_entity_visibility(ent)),
 502                         get_variability_name(get_entity_variability(ent)),
 503                         get_peculiarity_name(get_entity_peculiarity(ent)),
 504                         get_volatility_name(get_entity_volatility(ent)));
 505
 506         // TODO: inheritance stuff for class entities not supported yet
 507         if(is_Class_type(owner) && owner != get_glob_type())
 508                 printf("Inheritance of class entities not supported yet!\n");
 509
 510         if(get_entity_variability(ent) != variability_uninitialized
 511                 && get_entity_visibility(ent) != visibility_external_allocated)
 512         {
 513                 if(is_compound_entity(ent))
 514                 {
 515                         if(has_entity_initializer(ent))
 516                         {
 517                                 fputs("initializer ", env->file);
 518                                 write_initializer(env, get_entity_initializer(ent));
 519                         }
 520                         else
 521                         {
 522                                 int i, n = get_compound_ent_n_values(ent);
 523                                 fputs("noninitializer ", env->file);
 524                                 fprintf(env->file, "%d ", n);
 525                                 for(i = 0; i < n; i++)
 526                                 {
 527                                         ir_entity *member = get_compound_ent_value_member(ent, i);
 528                                         ir_node   *irn    = get_compound_ent_value(ent, i);
 529                                         fprintf(env->file, "%ld %ld ", get_entity_nr(member), get_irn_node_nr(irn));
 530                                 }
 531                         }
 532                 }
 533                 else
 534                 {
 535                         ir_node *irn = get_atomic_ent_value(ent);
 536                         fprintf(env->file, "%ld ", get_irn_node_nr(irn));
 537                 }
 538         }
 539
 540         fputc('\n', env->file);
 541 }
 542
 543 static void export_type_or_ent_pre(type_or_ent tore, void *ctx)
 544 {
 545         io_env_t *env = (io_env_t *) ctx;
 546         if(get_kind(tore.typ) == k_type)
 547                 export_type_pre(env, tore.typ);
 548 }
 549
 550 static void export_type_or_ent_post(type_or_ent tore, void *ctx)
 551 {
 552         io_env_t *env = (io_env_t *) ctx;
 553
 554         switch(get_kind(tore.ent))
 555         {
 556                 case k_entity:
 557                         export_entity(env, tore.ent);
 558                         break;
 559
 560                 case k_type:
 561                         export_type_post(env, tore.typ);
 562                         break;
 563
 564                 default:
 565                         printf("export_type_or_ent_post: Unknown type or entity.\n");
 566                         break;
 567         }
 568 }
 569
 570 static void export_node(ir_node *irn, void *ctx)
 571 {
 572         io_env_t *env = (io_env_t *) ctx;
 573         int i, n;
 574         unsigned opcode = get_irn_opcode(irn);
 575
 576         if(env->ignoreblocks && opcode == iro_Block)
 577                 return;
 578
 579         n = get_irn_arity(irn);
 580
 581         fprintf(env->file, "\t%s %ld [ ", get_irn_opname(irn), get_irn_node_nr(irn));
 582
 583         for(i = -1; i < n; i++)
 584         {
 585                 ir_node *pred = get_irn_n(irn, i);
 586                 if(pred == NULL) {
 587                         /* Anchor node may have NULL predecessors */
 588                         assert(is_Anchor(irn));
 589                         fputs("-1 ", env->file);
 590                 } else {
 591                         fprintf(env->file, "%ld ", get_irn_node_nr(pred));
 592                 }
 593         }
 594
 595         fprintf(env->file, "] { ");
 596
 597         switch(opcode)
 598         {
 599                 #include "gen_irio_export.inl"
 600         }
 601         fputs("}\n", env->file);
 602 }
 603
 604 /** Exports the whole irp to the given file in a textual form. */
 605 void ir_export(const char *filename)
 606 {
 607         io_env_t env;
 608         int i, n_irgs = get_irp_n_irgs(), n_pseudoirgs = get_irp_n_pseudo_irgs();
 609
 610         env.file = fopen(filename, "wt");
 611         if(!env.file)
 612         {
 613                 perror(filename);
 614                 return;
 615         }
 616
 617         fputs("typegraph {\n", env.file);
 618
 619         type_walk_plus_frames(export_type_or_ent_pre, export_type_or_ent_post, &env);
 620         /* TODO: Visit frame types and "types for value params"? */
 621
 622         for(i = 0; i < n_irgs; i++)
 623         {
 624                 ir_graph *irg = get_irp_irg(i);
 625                 ir_type *valuetype = get_irg_value_param_type(irg);
 626
 627                 fprintf(env.file, "}\n\nirg %ld %ld %ld {\n", get_entity_nr(get_irg_entity(irg)),
 628                         get_type_nr(get_irg_frame_type(irg)),
 629                         valuetype == NULL ? -1 : get_type_nr(valuetype));
 630
 631                 env.ignoreblocks = 0;
 632                 irg_block_walk_graph(irg, NULL, export_node, &env);
 633
 634                 env.ignoreblocks = 1;
 635                 irg_walk_anchors(irg, NULL, export_node, &env);
 636         }
 637
 638         fprintf(env.file, "}\n\nconstirg %ld {\n", get_irn_node_nr(get_const_code_irg()->current_block));
 639
 640         walk_const_code(NULL, export_node, &env);
 641         fputs("}\n", env.file);
 642
 643         fclose(env.file);
 644 }
 645
 646 /** Exports the given irg to the given file. */
 647 void ir_export_irg(ir_graph *irg, const char *filename)
 648 {
 649         io_env_t env;
 650
 651         env.file = fopen(filename, "wt");
 652         if(!env.file)
 653         {
 654                 perror(filename);
 655                 return;
 656         }
 657
 658         fputs("typegraph {\n", env.file);
 659
 660         type_walk_irg(irg, export_type_or_ent_pre, export_type_or_ent_post, &env);
 661
 662         fprintf(env.file, "}\n\nirg %ld {\n", get_entity_nr(get_irg_entity(irg)));
 663
 664         env.ignoreblocks = 0;
 665         irg_block_walk_graph(irg, NULL, export_node, &env);
 666
 667         env.ignoreblocks = 1;
 668         irg_walk_anchors(irg, NULL, export_node, &env);
 669
 670         /* TODO: Only output needed constants */
 671         fputs("}\n\nconstirg {\n", env.file);
 672         walk_const_code(NULL, export_node, &env);
 673         fputs("}\n", env.file);
 674
 675         fclose(env.file);
 676 }
 677
 678 static void save_lex_state(io_env_t *env, lex_state_t *state)
 679 {
 680         state->offs = ftell(env->file);
 681         state->line = env->line;
 682         state->col  = env->col;
 683 }
 684
 685 static void restore_lex_state(io_env_t *env, lex_state_t *state)
 686 {
 687         fseek(env->file, state->offs, SEEK_SET);
 688         env->line = state->line;
 689         env->col  = state->col;
 690 }
 691
 692 static int read_c(io_env_t *env)
 693 {
 694         int ch = fgetc(env->file);
 695         switch(ch)
 696         {
 697                 case '\t':
 698                         env->col += 4;
 699                         break;
 700
 701                 case '\n':
 702                         env->col = 0;
 703                         env->line++;
 704                         break;
 705
 706                 default:
 707                         env->col++;
 708                         break;
 709         }
 710         return ch;
 711 }
 712
 713 /** Returns the first non-whitespace character or EOF. **/
 714 static int skip_ws(io_env_t *env)
 715 {
 716         while(1)
 717         {
 718                 int ch = read_c(env);
 719                 switch(ch)
 720                 {
 721                         case ' ':
 722                         case '\t':
 723                         case '\n':
 724                         case '\r':
 725                                 break;
 726
 727                         default:
 728                                 return ch;
 729                 }
 730         }
 731 }
 732
 733 static void skip_to(io_env_t *env, char to_ch)
 734 {
 735         int ch;
 736         do
 737         {
 738                 ch = read_c(env);
 739         }
 740         while(ch != to_ch && ch != EOF);
 741 }
 742
 743 static int expect_char(io_env_t *env, char ch)
 744 {
 745         int curch = skip_ws(env);
 746         if(curch != ch)
 747         {
 748                 printf("Unexpected char '%c', expected '%c' in line %i:%i\n", curch, ch, env->line, env->col);
 749                 return 0;
 750         }
 751         return 1;
 752 }
 753
 754 #define EXPECT(c) if(expect_char(env, (c))) {} else return 0
 755 #define EXPECT_OR_EXIT(c) if(expect_char(env, (c))) {} else exit(1)
 756
 757 inline static const char *read_str_to(io_env_t *env, char *buf, size_t bufsize)
 758 {
 759         size_t i;
 760         for(i = 0; i < bufsize - 1; i++)
 761         {
 762                 int ch = read_c(env);
 763                 if(ch == EOF) break;
 764                 switch(ch)
 765                 {
 766                         case ' ':
 767                         case '\t':
 768                         case '\n':
 769                         case '\r':
 770                                 if(i != 0)
 771                                         goto endofword;
 772                                 i--;    // skip whitespace
 773                                 break;
 774
 775                         default:
 776                                 buf[i] = ch;
 777                                 break;
 778                 }
 779         }
 780 endofword:
 781         buf[i] = 0;
 782         return buf;
 783 }
 784
 785 static const char *read_str(io_env_t *env)
 786 {
 787         static char buf[1024];
 788         return read_str_to(env, buf, sizeof(buf));
 789 }
 790
 791 static const char *read_qstr_to(io_env_t *env, char *buf, size_t bufsize)
 792 {
 793         size_t i;
 794         EXPECT_OR_EXIT('\"');
 795         for(i = 0; i < bufsize - 1; i++)
 796         {
 797                 int ch = read_c(env);
 798                 if(ch == EOF)
 799                 {
 800                         printf("Unexpected end of quoted string!\n");
 801                         exit(1);
 802                 }
 803                 if(ch == '\"') break;
 804
 805                 buf[i] = ch;
 806         }
 807         if(i == bufsize - 1)
 808         {
 809                 printf("Quoted string too long!\n");
 810                 exit(1);
 811         }
 812         buf[i] = 0;
 813         return buf;
 814 }
 815
 816 static long read_long2(io_env_t *env, char **endptr)
 817 {
 818         static char buf[1024];
 819         return strtol(read_str_to(env, buf, sizeof(buf)), endptr, 0);
 820 }
 821
 822 static long read_long(io_env_t *env)
 823 {
 824         return read_long2(env, NULL);
 825 }
 826
 827 static ir_node *get_node_or_null(io_env_t *env, long nodenr)
 828 {
 829         ir_node *node = (ir_node *) get_id(env, nodenr);
 830         if(node && node->kind != k_ir_node)
 831         {
 832                 panic("Irn ID %ld collides with something else in line %i:%i\n", nodenr, env->line, env->col);
 833         }
 834         return node;
 835 }
 836
 837 static ir_node *get_node(io_env_t *env, long nodenr)
 838 {
 839         ir_node *node = get_node_or_null(env, nodenr);
 840         if(!node)
 841                 panic("Unknown node: %ld in line %i:%i\n", nodenr, env->line, env->col);
 842
 843         return node;
 844 }
 845
 846 static ir_node *get_node_or_dummy(io_env_t *env, long nodenr)
 847 {
 848         ir_node *node = get_node_or_null(env, nodenr);
 849         if(!node)
 850         {
 851                 node = new_Dummy(mode_X);
 852                 set_id(env, nodenr, node);
 853         }
 854         return node;
 855 }
 856
 857 static ir_type *get_type(io_env_t *env, long typenr)
 858 {
 859         ir_type *type = (ir_type *) get_id(env, typenr);
 860         if(!type)
 861         {
 862                 panic("Unknown type: %ld in line %i:%i\n", typenr, env->line, env->col);
 863         }
 864         else if(type->kind != k_type)
 865         {
 866                 panic("Type ID %ld collides with something else in line %i:%i\n", typenr, env->line, env->col);
 867         }
 868         return type;
 869 }
 870
 871 static ir_type *read_type(io_env_t *env)
 872 {
 873         return get_type(env, read_long(env));
 874 }
 875
 876 static ir_entity *get_entity(io_env_t *env, long entnr)
 877 {
 878         ir_entity *entity = (ir_entity *) get_id(env, entnr);
 879         if(!entity)
 880         {
 881                 printf("Unknown entity: %ld in line %i:%i\n", entnr, env->line, env->col);
 882                 exit(1);
 883         }
 884         else if(entity->kind != k_entity)
 885         {
 886                 panic("Entity ID %ld collides with something else in line %i:%i\n", entnr, env->line, env->col);
 887         }
 888         return entity;
 889 }
 890
 891 static ir_entity *read_entity(io_env_t *env)
 892 {
 893         return get_entity(env, read_long(env));
 894 }
 895
 896 static ir_mode *read_mode(io_env_t *env)
 897 {
 898         static char buf[128];
 899         int i, n;
 900
 901         read_str_to(env, buf, sizeof(buf));
 902
 903         n = get_irp_n_modes();
 904         for(i = 0; i < n; i++)
 905         {
 906                 ir_mode *mode = get_irp_mode(i);
 907                 if(!strcmp(buf, get_mode_name(mode)))
 908                         return mode;
 909         }
 910
 911         printf("Unknown mode \"%s\" in line %i:%i\n", buf, env->line, env->col);
 912         return mode_ANY;
 913 }
 914
 915 static const char *get_typetag_name(typetag_t typetag)
 916 {
 917         switch(typetag)
 918         {
 919                 case tt_align:       return "align";
 920                 case tt_allocation:  return "allocation";
 921                 case tt_builtin:     return "builtin kind";
 922                 case tt_initializer: return "initializer kind";
 923                 case tt_iro:         return "opcode";
 924                 case tt_peculiarity: return "peculiarity";
 925                 case tt_pin_state:   return "pin state";
 926                 case tt_tpo:         return "type";
 927                 case tt_type_state:  return "type state";
 928                 case tt_variability: return "variability";
 929                 case tt_visibility:  return "visibility";
 930                 case tt_volatility:  return "volatility";
 931                 default: return "<UNKNOWN>";
 932         }
 933 }
 934
 935 /**
 936  * Read and decode an enum constant.
 937  */
 938 static unsigned read_enum(io_env_t *env, typetag_t typetag)
 939 {
 940         static char buf[128];
 941         unsigned code = symbol(read_str_to(env, buf, sizeof(buf)), typetag);
 942         if(code != SYMERROR)
 943                 return code;
 944
 945         printf("Invalid %s: \"%s\" in %i:%i\n", get_typetag_name(typetag), buf, env->line, env->col);
 946         return 0;
 947 }
 948
 949 #define read_align(env)              ((ir_align)              read_enum(env, tt_align))
 950 #define read_allocation(env)         ((ir_allocation)         read_enum(env, tt_allocation))
 951 #define read_builtin_kind(env)       ((ir_builtin_kind)       read_enum(env, tt_builtin))
 952 #define read_cond_kind(env)          ((cond_kind)             read_enum(env, tt_cond_kind))
 953 #define read_cond_jmp_predicate(env) ((cond_jmp_predicate)    read_enum(env, tt_cond_jmp_predicate))
 954 #define read_initializer_kind(env)   ((ir_initializer_kind_t) read_enum(env, tt_initializer))
 955 #define read_peculiarity(env)        ((ir_peculiarity)        read_enum(env, tt_peculiarity))
 956 #define read_pin_state(env)          ((op_pin_state)          read_enum(env, tt_pin_state))
 957 #define read_type_state(env)         ((ir_type_state)         read_enum(env, tt_type_state))
 958 #define read_variability(env)        ((ir_variability)        read_enum(env, tt_variability))
 959 #define read_visibility(env)         ((ir_visibility)         read_enum(env, tt_visibility))
 960 #define read_volatility(env)         ((ir_volatility)         read_enum(env, tt_volatility))
 961
 962 static ir_cons_flags get_cons_flags(io_env_t *env)
 963 {
 964         ir_cons_flags flags = cons_none;
 965
 966         op_pin_state pinstate = read_pin_state(env);
 967         switch(pinstate)
 968         {
 969                 case op_pin_state_floats: flags |= cons_floats; break;
 970                 case op_pin_state_pinned: break;
 971                 default:
 972                         panic("Error in %i:%i: Invalid pinstate: %s", env->line, env->col, get_op_pin_state_name(pinstate));
 973         }
 974
 975         if(read_volatility(env) == volatility_is_volatile) flags |= cons_volatile;
 976         if(read_align(env) == align_non_aligned) flags |= cons_unaligned;
 977
 978         return flags;
 979 }
 980
 981 static tarval *read_tv(io_env_t *env)
 982 {
 983         static char buf[128];
 984         ir_mode *tvmode = read_mode(env);
 985         read_str_to(env, buf, sizeof(buf));
 986         return new_tarval_from_str(buf, strlen(buf), tvmode);
 987 }
 988
 989 static ir_initializer_t *read_initializer(io_env_t *env)
 990 {
 991         FILE *f = env->file;
 992         ir_initializer_kind_t ini_kind = read_initializer_kind(env);
 993
 994         switch(ini_kind)
 995         {
 996                 case IR_INITIALIZER_CONST:
 997                 {
 998                         ir_node *irn = get_node_or_dummy(env, read_long(env));
 999                         return create_initializer_const(irn);
1000                 }
1001
1002                 case IR_INITIALIZER_TARVAL:
1003                         return create_initializer_tarval(read_tv(env));
1004
1005                 case IR_INITIALIZER_NULL:
1006                         return get_initializer_null();
1007
1008                 case IR_INITIALIZER_COMPOUND:
1009                 {
1010                         unsigned i, n = (unsigned) read_long(env);
1011                         ir_initializer_t *ini = create_initializer_compound(n);
1012                         for(i = 0; i < n; i++)
1013                         {
1014                                 ir_initializer_t *curini = read_initializer(env);
1015                                 set_initializer_compound_value(ini, i, curini);
1016                         }
1017                         return ini;
1018                 }
1019
1020                 default:
1021                         panic("Unknown initializer kind");
1022         }
1023 }
1024
1025
1026 /** Reads a type description and remembers it by its id. */
1027 static void import_type(io_env_t *env, keyword_t kwkind)
1028 {
1029         char           buf[1024];
1030         int            i;
1031         ir_type       *type;
1032         long           typenr = read_long(env);
1033         const char    *tpop   = read_str(env);
1034         const char    *name   = read_qstr_to(env, buf, sizeof(buf));
1035         unsigned       size   = (unsigned) read_long(env);
1036         unsigned       align  = (unsigned) read_long(env);
1037         ir_type_state  state  = read_type_state(env);
1038         ir_visibility  vis    = read_visibility(env);
1039
1040         ident         *id     = new_id_from_str(name);
1041
1042         const char    *kindstr;
1043
1044         if(kwkind == kw_frametype)
1045         {
1046                 if(symbol(tpop, tt_tpo) != tpo_class)
1047                 {
1048                         printf("Frame type must be a class type in line %i:%i\n", env->line, env->col);
1049                         skip_to(env, '\n');
1050                         return;
1051                 }
1052
1053                 type = new_type_frame(id);
1054                 set_type_size_bytes(type, size);
1055
1056                 kindstr = "frametype";
1057         }
1058         else if(kwkind == kw_valuetype)
1059         {
1060                 if(symbol(tpop, tt_tpo) != tpo_struct)
1061                 {
1062                         printf("Value type must be a struct type in line %i:%i\n", env->line, env->col);
1063                         skip_to(env, '\n');
1064                         return;
1065                 }
1066
1067                 type = new_type_value(id);
1068                 set_type_size_bytes(type, size);
1069
1070                 kindstr = "valuetype";
1071         }
1072         else
1073         {
1074                 switch(symbol(tpop, tt_tpo))
1075                 {
1076                         case tpo_array:
1077                         {
1078                                 int ndims = (int) read_long(env);
1079                                 long elemtypenr = read_long(env);
1080                                 ir_type *elemtype = get_type(env, elemtypenr);
1081
1082                                 type = new_type_array(id, ndims, elemtype);
1083                                 for(i = 0; i < ndims; i++)
1084                                 {
1085                                         const char *str = read_str(env);
1086                                         if(strcmp(str, "unknown"))
1087                                         {
1088                                                 long lowerbound = strtol(str, NULL, 0);
1089                                                 set_array_lower_bound_int(type, i, lowerbound);
1090                                         }
1091                                         str = read_str(env);
1092                                         if(strcmp(str, "unknown"))
1093                                         {
1094                                                 long upperbound = strtol(str, NULL, 0);
1095                                                 set_array_upper_bound_int(type, i, upperbound);
1096                                         }
1097                                 }
1098                                 set_type_size_bytes(type, size);
1099                                 break;
1100                         }
1101
1102                         case tpo_class:
1103                                 type = new_type_class(id);
1104                                 set_type_size_bytes(type, size);
1105                                 break;
1106
1107                         case tpo_method:
1108                         {
1109                                 unsigned callingconv = (unsigned) read_long(env);
1110                                 unsigned addprops    = (unsigned) read_long(env);
1111                                 int nparams          = (int)      read_long(env);
1112                                 int nresults         = (int)      read_long(env);
1113                                 int variaindex;
1114
1115                                 type = new_type_method(id, nparams, nresults);
1116
1117                                 for(i = 0; i < nparams; i++)
1118                                 {
1119                                         long     typenr = read_long(env);
1120                                         ir_type *paramtype = get_type(env, typenr);
1121
1122                                         set_method_param_type(type, i, paramtype);
1123                                 }
1124                                 for(i = 0; i < nresults; i++)
1125                                 {
1126                                         long typenr = read_long(env);
1127                                         ir_type *restype = get_type(env, typenr);
1128
1129                                         set_method_res_type(type, i, restype);
1130                                 }
1131
1132                                 variaindex = (int) read_long(env);
1133                                 if(variaindex != -1)
1134                                 {
1135                                         set_method_variadicity(type, variadicity_variadic);
1136                                         if(variaindex != nparams)
1137                                                 set_method_first_variadic_param_index(type, variaindex);
1138                                 }
1139
1140                                 set_method_calling_convention(type, callingconv);
1141                                 set_method_additional_properties(type, addprops);
1142                                 break;
1143                         }
1144
1145                         case tpo_pointer:
1146                         {
1147                                 ir_mode *mode = read_mode(env);
1148                                 ir_type *pointsto = get_type(env, read_long(env));
1149                                 type = new_type_pointer(id, pointsto, mode);
1150                                 break;
1151                         }
1152
1153                         case tpo_primitive:
1154                         {
1155                                 ir_mode *mode = read_mode(env);
1156                                 type = new_type_primitive(id, mode);
1157                                 break;
1158                         }
1159
1160                         case tpo_struct:
1161                                 type = new_type_struct(id);
1162                                 set_type_size_bytes(type, size);
1163                                 break;
1164
1165                         case tpo_union:
1166                                 type = new_type_union(id);
1167                                 set_type_size_bytes(type, size);
1168                                 break;
1169
1170                         case tpo_unknown:
1171                                 return;   // ignore unknown type
1172
1173                         default:
1174                                 if(typenr != 0)  // ignore global type
1175                                         printf("Unknown type kind: \"%s\" in line %i:%i\n", tpop, env->line, env->col);
1176                                 skip_to(env, '\n');
1177                                 return;
1178                 }
1179                 kindstr = "type";
1180         }
1181
1182         set_type_alignment_bytes(type, align);
1183         set_type_visibility(type, vis);
1184
1185         if(state == layout_fixed)
1186                 ARR_APP1(ir_type *, env->fixedtypes, type);
1187
1188         set_id(env, typenr, type);
1189         printf("Insert %s %s %ld\n", kindstr, name, typenr);
1190 }
1191
1192 /** Reads an entity description and remembers it by its id. */
1193 static void import_entity(io_env_t *env)
1194 {
1195         char          buf[1024], buf2[1024];
1196         long          entnr       = read_long(env);
1197         const char   *name        = read_qstr_to(env, buf, sizeof(buf));
1198         const char   *ld_name     = read_qstr_to(env, buf2, sizeof(buf2));
1199         long          typenr      = read_long(env);
1200         long          ownertypenr = read_long(env);
1201
1202         ir_type   *type      = get_type(env, typenr);
1203         ir_type   *ownertype = !ownertypenr ? get_glob_type() : get_type(env, ownertypenr);
1204         ir_entity *entity    = new_entity(ownertype, new_id_from_str(name), type);
1205
1206         if(*ld_name) set_entity_ld_ident(entity, new_id_from_str(ld_name));
1207         set_entity_offset     (entity, (int) read_long(env));
1208         set_entity_offset_bits_remainder(entity, (unsigned char) read_long(env));
1209         set_entity_allocation (entity, read_allocation(env));
1210         set_entity_visibility (entity, read_visibility(env));
1211         set_entity_variability(entity, read_variability(env));
1212         set_entity_peculiarity(entity, read_peculiarity(env));
1213         set_entity_volatility (entity, read_volatility(env));
1214
1215         if(get_entity_variability(entity) != variability_uninitialized
1216                 && get_entity_visibility(entity) != visibility_external_allocated)
1217         {
1218                 if(is_compound_entity(entity))
1219                 {
1220                         if(!strcmp(read_str_to(env, buf2, sizeof(buf2)), "initializer"))
1221                         {
1222                                 set_entity_initializer(entity, read_initializer(env));
1223                         }
1224                         else
1225                         {
1226                                 int i, n = (int) read_long(env);
1227                                 for(i = 0; i < n; i++)
1228                                 {
1229                                         ir_entity *member = get_entity(env, read_long(env));
1230                                         ir_node   *irn    = get_node_or_dummy(env, read_long(env));
1231                                         add_compound_ent_value(entity, irn, member);
1232                                 }
1233                         }
1234                 }
1235                 else
1236                 {
1237                         ir_node *irn = get_node_or_dummy(env, read_long(env));
1238                         set_atomic_ent_value(entity, irn);
1239                 }
1240         }
1241
1242         set_id(env, entnr, entity);
1243         printf("Insert entity %s %ld\n", name, entnr);
1244 }
1245
1246 /** Parses the whole type graph. */
1247 static int parse_typegraph(io_env_t *env)
1248 {
1249         const char *kind;
1250         lex_state_t oldstate;
1251
1252         EXPECT('{');
1253
1254         save_lex_state(env, &oldstate);
1255
1256         current_ir_graph = get_const_code_irg();
1257
1258         // parse all types first
1259         while(1)
1260         {
1261                 int isframetype = 0;
1262
1263                 kind = read_str(env);
1264                 if(kind[0] == '}' && !kind[1]) break;
1265
1266                 keyword_t kwkind = (keyword_t) symbol(kind, tt_keyword);
1267                 switch(kwkind)
1268                 {
1269                         case kw_type:
1270                         case kw_frametype:
1271                         case kw_valuetype:
1272                                 import_type(env, kwkind);
1273                                 break;
1274
1275                         default:
1276                                 skip_to(env, '\n');
1277                                 break;
1278                 }
1279         }
1280
1281         // now parse rest
1282         restore_lex_state(env, &oldstate);
1283
1284         while(1)
1285         {
1286                 kind = read_str(env);
1287                 if(kind[0] == '}' && !kind[1]) break;
1288
1289                 switch(symbol(kind, tt_keyword))
1290                 {
1291                         case kw_type:
1292                         case kw_frametype:
1293                         case kw_valuetype:
1294                                 skip_to(env, '\n');
1295                                 break;
1296
1297                         case kw_entity:
1298                                 import_entity(env);
1299                                 break;
1300
1301                         default:
1302                                 printf("Type graph element not supported yet: \"%s\"\n", kind);
1303                                 skip_to(env, '\n');
1304                                 break;
1305                 }
1306         }
1307         return 1;
1308 }
1309
1310 static int read_node_header(io_env_t *env, long *nodenr, long **preds, const char **nodename)
1311 {
1312         int numpreds;
1313         *nodename = read_str(env);
1314         if((*nodename)[0] == '}' && !(*nodename)[1]) return -1;  // end-of-graph
1315
1316         *nodenr = read_long(env);
1317
1318         ARR_RESIZE(ir_node *, *preds, 0);
1319
1320         EXPECT('[');
1321         for(numpreds = 0; !feof(env->file); numpreds++)
1322         {
1323                 char *endptr;
1324                 ARR_APP1(long, *preds, read_long2(env, &endptr));
1325                 if(*endptr == ']') break;
1326         }
1327         return numpreds;
1328 }
1329
1330 /** Parses an IRG. */
1331 static int parse_graph(io_env_t *env, ir_graph *irg)
1332 {
1333         long       *preds = NEW_ARR_F(long, 16);
1334         ir_node   **prednodes = NEW_ARR_F(ir_node *, 16);
1335         int         i, numpreds, ret = 1;
1336         long        nodenr;
1337         const char *nodename;
1338         ir_node    *node, *newnode;
1339
1340         current_ir_graph = irg;
1341
1342         EXPECT('{');
1343
1344         while(1)
1345         {
1346                 numpreds = read_node_header(env, &nodenr, &preds, &nodename);
1347                 if(numpreds == -1) break;  // end-of-graph
1348                 if(!numpreds)
1349                 {
1350                         printf("Node %s %ld is missing predecessors!", nodename, nodenr);
1351                         ret = 0;
1352                         break;
1353                 }
1354
1355                 ARR_RESIZE(ir_node *, prednodes, numpreds);
1356                 for(i = 0; i < numpreds - 1; i++)
1357                         prednodes[i] = get_node_or_dummy(env, preds[i + 1]);
1358
1359                 node = get_node_or_null(env, nodenr);
1360                 newnode = NULL;
1361
1362                 EXPECT('{');
1363
1364                 switch(symbol(nodename, tt_iro))
1365                 {
1366                         case iro_End:
1367                         {
1368                                 ir_node *newendblock = get_node(env, preds[0]);
1369                                 newnode = get_irg_end(current_ir_graph);
1370                                 exchange(get_nodes_block(newnode), newendblock);
1371                                 for(i = 0; i < numpreds - 1; i++)
1372                                         add_irn_n(newnode, prednodes[i]);
1373                                 break;
1374                         }
1375
1376                         case iro_Start:
1377                         {
1378                                 ir_node *newstartblock = get_node(env, preds[0]);
1379                                 newnode = get_irg_start(current_ir_graph);
1380                                 exchange(get_nodes_block(newnode), newstartblock);
1381                                 break;
1382                         }
1383
1384                         case iro_Block:
1385                         {
1386                                 if(preds[0] != nodenr)
1387                                 {
1388                                         printf("Invalid block: preds[0] != nodenr (%ld != %ld)\n",
1389                                                 preds[0], nodenr);
1390                                         ret = 0;
1391                                         goto endloop;
1392                                 }
1393
1394                                 newnode = new_Block(numpreds - 1, prednodes);
1395                                 break;
1396                         }
1397
1398                         case iro_Anchor:
1399                                 newnode = current_ir_graph->anchor;
1400                                 for(i = 0; i < numpreds - 1; i++)
1401                                         set_irn_n(newnode, i, prednodes[i]);
1402                                 set_irn_n(newnode, -1, get_node(env, preds[0]));
1403                                 break;
1404
1405                         case iro_SymConst:
1406                         {
1407                                 long entnr = read_long(env);
1408                                 union symconst_symbol sym;
1409                                 sym.entity_p = get_entity(env, entnr);
1410                                 newnode = new_SymConst(mode_P, sym, symconst_addr_ent);
1411                                 break;
1412                         }
1413
1414                         #include "gen_irio_import.inl"
1415
1416                         default:
1417                                 goto notsupported;
1418                 }
1419
1420                 EXPECT('}');
1421
1422                 if(!newnode)
1423                 {
1424 notsupported:
1425                         panic("Node type not supported yet: %s in line %i:%i\n", nodename, env->line, env->col);
1426                 }
1427
1428                 if(node)
1429                         exchange(node, newnode);
1430                 /* Always update hash entry to avoid more uses of id nodes */
1431                 set_id(env, nodenr, newnode);
1432                 //printf("Insert %s %ld\n", nodename, nodenr);
1433         }
1434
1435 endloop:
1436         DEL_ARR_F(preds);
1437         DEL_ARR_F(prednodes);
1438
1439         return ret;
1440 }
1441
1442 /** Imports an previously exported textual representation of an (maybe partial) irp */
1443 void ir_import(const char *filename)
1444 {
1445         int oldoptimize = get_optimize();
1446         firm_verification_t oldver = get_node_verification_mode();
1447         io_env_t ioenv;
1448         io_env_t *env = &ioenv;
1449         int i, n;
1450
1451         symtbl_init();
1452
1453         memset(env, 0, sizeof(*env));
1454         env->idset = new_set(id_cmp, 128);
1455         env->fixedtypes = NEW_ARR_F(ir_type *, 0);
1456
1457         env->file = fopen(filename, "rt");
1458         if(!env->file)
1459         {
1460                 perror(filename);
1461                 exit(1);
1462         }
1463
1464         set_optimize(0);
1465         do_node_verification(FIRM_VERIFICATION_OFF);
1466
1467         while(1)
1468         {
1469                 const char *str = read_str(env);
1470                 if(!*str) break;
1471                 switch(symbol(str, tt_keyword))
1472                 {
1473                         case kw_typegraph:
1474                                 if(!parse_typegraph(env)) goto end;
1475                                 break;
1476
1477                         case kw_irg:
1478                         {
1479                                 ir_entity *irgent = get_entity(env, read_long(env));
1480                                 long valuetypeid;
1481                                 ir_graph *irg = new_ir_graph(irgent, 0);
1482                                 set_irg_frame_type(irg, get_type(env, read_long(env)));
1483                                 valuetypeid = read_long(env);
1484                                 if(valuetypeid != -1)
1485                                         set_method_value_param_type(get_entity_type(irgent),
1486                                                         get_type(env, valuetypeid));
1487
1488                                 if(!parse_graph(env, irg)) goto end;
1489                                 break;
1490                         }
1491
1492                         case kw_constirg:
1493                         {
1494                                 ir_graph *constirg = get_const_code_irg();
1495                                 long bodyblockid = read_long(env);
1496                                 set_id(env, bodyblockid, constirg->current_block);
1497                                 if(!parse_graph(env, constirg)) goto end;
1498                                 break;
1499                         }
1500                 }
1501         }
1502
1503 end:
1504         n = ARR_LEN(env->fixedtypes);
1505         for(i = 0; i < n; i++)
1506                 set_type_state(env->fixedtypes[i], layout_fixed);
1507
1508         DEL_ARR_F(env->fixedtypes);
1509
1510         del_set(env->idset);
1511
1512         irp_finalize_cons();
1513
1514         do_node_verification(oldver);
1515         set_optimize(oldoptimize);
1516
1517         fclose(env->file);
1518 }