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_mode_arithmetic,
  72         tt_peculiarity,
  73         tt_pin_state,
  74         tt_tpo,
  75         tt_type_state,
  76         tt_variability,
  77         tt_visibility,
  78         tt_volatility
  79 } typetag_t;
  80
  81 typedef enum keyword_t
  82 {
  83         kw_constirg,
  84         kw_entity,
  85         kw_frametype,
  86         kw_irg,
  87         kw_mode,
  88         kw_modes,
  89         kw_valuetype,
  90         kw_type,
  91         kw_typegraph
  92 } keyword_t;
  93
  94 typedef struct symbol_t
  95 {
  96         const char *str;      /**< The name of this symbol. */
  97         typetag_t   typetag;  /**< The type tag of this symbol. */
  98         unsigned    code;     /**< The value of this symbol. */
  99 } symbol_t;
 100
 101 typedef struct id_entry
 102 {
 103         long id;
 104         void *elem;
 105 } id_entry;
 106
 107 /** The symbol table, a set of symbol_t elements. */
 108 static set *symtbl;
 109
 110
 111 /**
 112  * Calculate a hash value for a string.
 113  */
 114 static unsigned string_hash(const char *str, int len)
 115 {
 116         return str[0] * 27893 ^ str[len-1] * 81 ^ str[len >> 1];
 117 }
 118
 119 /**
 120  * Compare two symbol table entries.
 121  */
 122 static int symbol_cmp(const void *elt, const void *key, size_t size)
 123 {
 124         int res;
 125         const symbol_t *entry = (const symbol_t *) elt;
 126         const symbol_t *keyentry = (const symbol_t *) key;
 127         (void) size;
 128         res = entry->typetag - keyentry->typetag;
 129         if (res) return res;
 130         return strcmp(entry->str, keyentry->str);
 131 }
 132
 133 static int id_cmp(const void *elt, const void *key, size_t size)
 134 {
 135         const id_entry *entry = (const id_entry *) elt;
 136         const id_entry *keyentry = (const id_entry *) key;
 137         (void) size;
 138         return entry->id - keyentry->id;
 139 }
 140
 141 /** Initializes the symbol table. May be called more than once without problems. */
 142 static void symtbl_init(void)
 143 {
 144         symbol_t key;
 145
 146         /* Only initialize once */
 147         if (symtbl != NULL)
 148                 return;
 149
 150         symtbl = new_set(symbol_cmp, 256);
 151
 152 #define INSERT(s, tt, cod)                                       \
 153         key.str = (s);                                               \
 154         key.typetag = (tt);                                          \
 155         key.code = (cod);                                            \
 156         set_insert(symtbl, &key, sizeof(key), string_hash(s, sizeof(s)-1) + tt * 17)
 157
 158 #define INSERTENUM(tt, e) INSERT(#e, tt, e)
 159 #define INSERTKEYWORD(k) INSERT(#k, tt_keyword, kw_##k)
 160
 161         INSERT("array", tt_tpo, tpo_array);
 162         INSERT("class", tt_tpo, tpo_class);
 163         INSERT("method", tt_tpo, tpo_method);
 164         INSERT("pointer", tt_tpo, tpo_pointer);
 165         INSERT("primitive", tt_tpo, tpo_primitive);
 166         INSERT("struct", tt_tpo, tpo_struct);
 167         INSERT("union", tt_tpo, tpo_union);
 168         INSERT("Unknown", tt_tpo, tpo_unknown);
 169
 170         INSERTKEYWORD(constirg);
 171         INSERTKEYWORD(entity);
 172         INSERTKEYWORD(frametype);
 173         INSERTKEYWORD(irg);
 174         INSERTKEYWORD(mode);
 175         INSERTKEYWORD(modes);
 176         INSERTKEYWORD(valuetype);
 177         INSERTKEYWORD(type);
 178         INSERTKEYWORD(typegraph);
 179
 180 #include "gen_irio_lex.inl"
 181
 182         INSERTENUM(tt_align, align_non_aligned);
 183         INSERTENUM(tt_align, align_is_aligned);
 184
 185         INSERTENUM(tt_allocation, allocation_automatic);
 186         INSERTENUM(tt_allocation, allocation_parameter);
 187         INSERTENUM(tt_allocation, allocation_dynamic);
 188         INSERTENUM(tt_allocation, allocation_static);
 189
 190         INSERTENUM(tt_builtin, ir_bk_trap);
 191         INSERTENUM(tt_builtin, ir_bk_debugbreak);
 192         INSERTENUM(tt_builtin, ir_bk_return_address);
 193         INSERTENUM(tt_builtin, ir_bk_frame_address);
 194         INSERTENUM(tt_builtin, ir_bk_prefetch);
 195         INSERTENUM(tt_builtin, ir_bk_ffs);
 196         INSERTENUM(tt_builtin, ir_bk_clz);
 197         INSERTENUM(tt_builtin, ir_bk_ctz);
 198         INSERTENUM(tt_builtin, ir_bk_popcount);
 199         INSERTENUM(tt_builtin, ir_bk_parity);
 200         INSERTENUM(tt_builtin, ir_bk_bswap);
 201         INSERTENUM(tt_builtin, ir_bk_inport);
 202         INSERTENUM(tt_builtin, ir_bk_outport);
 203         INSERTENUM(tt_builtin, ir_bk_inner_trampoline);
 204
 205         INSERTENUM(tt_cond_kind, dense);
 206         INSERTENUM(tt_cond_kind, fragmentary);
 207
 208         INSERTENUM(tt_cond_jmp_predicate, COND_JMP_PRED_NONE);
 209         INSERTENUM(tt_cond_jmp_predicate, COND_JMP_PRED_TRUE);
 210         INSERTENUM(tt_cond_jmp_predicate, COND_JMP_PRED_FALSE);
 211
 212         INSERTENUM(tt_initializer, IR_INITIALIZER_CONST);
 213         INSERTENUM(tt_initializer, IR_INITIALIZER_TARVAL);
 214         INSERTENUM(tt_initializer, IR_INITIALIZER_NULL);
 215         INSERTENUM(tt_initializer, IR_INITIALIZER_COMPOUND);
 216
 217         INSERTENUM(tt_mode_arithmetic, irma_uninitialized);
 218         INSERTENUM(tt_mode_arithmetic, irma_none);
 219         INSERTENUM(tt_mode_arithmetic, irma_twos_complement);
 220         INSERTENUM(tt_mode_arithmetic, irma_ones_complement);
 221         INSERTENUM(tt_mode_arithmetic, irma_int_BCD);
 222         INSERTENUM(tt_mode_arithmetic, irma_ieee754);
 223         INSERTENUM(tt_mode_arithmetic, irma_float_BCD);
 224
 225         INSERTENUM(tt_peculiarity, peculiarity_description);
 226         INSERTENUM(tt_peculiarity, peculiarity_inherited);
 227         INSERTENUM(tt_peculiarity, peculiarity_existent);
 228
 229         INSERTENUM(tt_pin_state, op_pin_state_floats);
 230         INSERTENUM(tt_pin_state, op_pin_state_pinned);
 231         INSERTENUM(tt_pin_state, op_pin_state_exc_pinned);
 232         INSERTENUM(tt_pin_state, op_pin_state_mem_pinned);
 233
 234         INSERTENUM(tt_type_state, layout_undefined);
 235         INSERTENUM(tt_type_state, layout_fixed);
 236
 237         INSERTENUM(tt_variability, variability_uninitialized);
 238         INSERTENUM(tt_variability, variability_initialized);
 239         INSERTENUM(tt_variability, variability_part_constant);
 240         INSERTENUM(tt_variability, variability_constant);
 241
 242         INSERTENUM(tt_visibility, visibility_local);
 243         INSERTENUM(tt_visibility, visibility_external_visible);
 244         INSERTENUM(tt_visibility, visibility_external_allocated);
 245
 246         INSERTENUM(tt_volatility, volatility_non_volatile);
 247         INSERTENUM(tt_volatility, volatility_is_volatile);
 248
 249 #undef INSERTKEYWORD
 250 #undef INSERTENUM
 251 #undef INSERT
 252 }
 253
 254 /** Returns the according symbol value for the given string and tag, or SYMERROR if none was found. */
 255 static unsigned symbol(const char *str, typetag_t typetag)
 256 {
 257         symbol_t key, *entry;
 258
 259         key.str = str;
 260         key.typetag = typetag;
 261
 262         entry = set_find(symtbl, &key, sizeof(key), string_hash(str, strlen(str)) + typetag * 17);
 263         return entry ? entry->code : SYMERROR;
 264 }
 265
 266 static void *get_id(io_env_t *env, long id)
 267 {
 268         id_entry key, *entry;
 269         key.id = id;
 270
 271         entry = set_find(env->idset, &key, sizeof(key), (unsigned) id);
 272         return entry ? entry->elem : NULL;
 273 }
 274
 275 static void set_id(io_env_t *env, long id, void *elem)
 276 {
 277         id_entry key;
 278         key.id = id;
 279         key.elem = elem;
 280         set_insert(env->idset, &key, sizeof(key), (unsigned) id);
 281 }
 282
 283 static void write_mode(io_env_t *env, ir_mode *mode)
 284 {
 285         fputs(get_mode_name(mode), env->file);
 286         fputc(' ', env->file);
 287 }
 288
 289 static void write_tarval(io_env_t *env, tarval *tv)
 290 {
 291         char buf[1024];
 292         write_mode(env, get_tarval_mode(tv));
 293         tarval_snprintf(buf, sizeof(buf), tv);
 294         fputs(buf, env->file);
 295         fputc(' ', env->file);
 296 }
 297
 298 static void write_align(io_env_t *env, ir_node *irn)
 299 {
 300         ir_align align;
 301
 302         if (is_Load(irn))
 303                 align = get_Load_align(irn);
 304         else if (is_Store(irn))
 305                 align = get_Store_align(irn);
 306         else
 307                 panic("Invalid optype for write_align");
 308
 309         fputs(get_align_name(align), env->file);
 310         fputc(' ', env->file);
 311 }
 312
 313 static void write_builtin_kind(io_env_t *env, ir_node *irn)
 314 {
 315         fputs(get_builtin_kind_name(get_Builtin_kind(irn)), env->file);
 316         fputc(' ', env->file);
 317 }
 318
 319 static void write_cond_kind(io_env_t *env, ir_node *irn)
 320 {
 321         fputs(get_cond_kind_name(get_Cond_kind(irn)), env->file);
 322         fputc(' ', env->file);
 323 }
 324
 325 static void write_cond_jmp_predicate(io_env_t *env, ir_node *irn)
 326 {
 327         fputs(get_cond_jmp_predicate_name(get_Cond_jmp_pred(irn)), env->file);
 328         fputc(' ', env->file);
 329 }
 330
 331 static void write_initializer(io_env_t *env, ir_initializer_t *ini)
 332 {
 333         FILE *f = env->file;
 334         ir_initializer_kind_t ini_kind = get_initializer_kind(ini);
 335
 336         fputs(get_initializer_kind_name(ini_kind), f);
 337         fputc(' ', f);
 338
 339         switch (ini_kind)
 340         {
 341                 case IR_INITIALIZER_CONST:
 342                         fprintf(f, "%ld ", get_irn_node_nr(get_initializer_const_value(ini)));
 343                         break;
 344
 345                 case IR_INITIALIZER_TARVAL:
 346                         write_tarval(env, get_initializer_tarval_value(ini));
 347                         break;
 348
 349                 case IR_INITIALIZER_NULL:
 350                         break;
 351
 352                 case IR_INITIALIZER_COMPOUND:
 353                 {
 354                         unsigned i, n = get_initializer_compound_n_entries(ini);
 355                         fprintf(f, "%d ", n);
 356                         for (i = 0; i < n; i++)
 357                                 write_initializer(env, get_initializer_compound_value(ini, i));
 358                         break;
 359                 }
 360
 361                 default:
 362                         panic("Unknown initializer kind");
 363         }
 364 }
 365
 366 static void write_pin_state(io_env_t *env, ir_node *irn)
 367 {
 368         fputs(get_op_pin_state_name(get_irn_pinned(irn)), env->file);
 369         fputc(' ', env->file);
 370 }
 371
 372 static void write_volatility(io_env_t *env, ir_node *irn)
 373 {
 374         ir_volatility vol;
 375
 376         if (is_Load(irn))
 377                 vol = get_Load_volatility(irn);
 378         else if (is_Store(irn))
 379                 vol = get_Store_volatility(irn);
 380         else
 381                 panic("Invalid optype for write_volatility");
 382
 383         fputs(get_volatility_name(vol), env->file);
 384         fputc(' ', env->file);
 385 }
 386
 387 static void export_type_common(io_env_t *env, ir_type *tp)
 388 {
 389         fprintf(env->file, "\t%s %ld %s %u %u %s %s ",
 390                         is_frame_type(tp) ? "frametype" : is_value_param_type(tp) ? "valuetype" : "type",
 391                         get_type_nr(tp),
 392                         get_type_tpop_name(tp),
 393                         get_type_size_bytes(tp),
 394                         get_type_alignment_bytes(tp),
 395                         get_type_state_name(get_type_state(tp)),
 396                         get_visibility_name(get_type_visibility(tp)));
 397 }
 398
 399 static void export_type_pre(io_env_t *env, ir_type *tp)
 400 {
 401         FILE *f = env->file;
 402
 403         /* skip types to be handled by post walker */
 404         switch (get_type_tpop_code(tp))
 405         {
 406                 case tpo_array:
 407                 case tpo_method:
 408                 case tpo_pointer:
 409                         return;
 410                 default:
 411                         break;
 412         }
 413
 414         export_type_common(env, tp);
 415
 416         switch (get_type_tpop_code(tp))
 417         {
 418                 case tpo_uninitialized:
 419                         panic("invalid type found");
 420
 421                 case tpo_class:
 422                         fputs(get_class_name(tp), f);
 423                         fputc(' ', f);
 424                         /* TODO: inheritance stuff not supported yet */
 425                         printf("Inheritance of classes not supported yet!\n");
 426                         break;
 427
 428                 case tpo_primitive:
 429                         write_mode(env, get_type_mode(tp));
 430                         break;
 431
 432                 case tpo_union:
 433                 case tpo_struct:
 434                 case tpo_enumeration:
 435                         fputs(get_compound_name(tp), f);
 436                         fputc(' ', f);
 437                         break;
 438
 439                 case tpo_method:
 440                 case tpo_pointer:
 441                 case tpo_code:
 442                 case tpo_array:
 443                 case tpo_none:
 444                 case tpo_unknown:
 445                         break;
 446         }
 447         fputc('\n', f);
 448 }
 449
 450 static void export_type_post(io_env_t *env, ir_type *tp)
 451 {
 452         FILE *f = env->file;
 453         int i, n, nparams, nresults;
 454
 455         /* skip types already handled by pre walker */
 456         switch (get_type_tpop_code(tp))
 457         {
 458                 case tpo_class:
 459                 case tpo_primitive:
 460                 case tpo_struct:
 461                 case tpo_union:
 462                 case tpo_unknown:
 463                         return;
 464                 default:
 465                         break;
 466         }
 467
 468         export_type_common(env, tp);
 469
 470         switch (get_type_tpop_code(tp))
 471         {
 472                 case tpo_array:
 473                         n = get_array_n_dimensions(tp);
 474                         fprintf(f, "%i %ld ", n, get_type_nr(get_array_element_type(tp)));
 475                         for (i = 0; i < n; i++) {
 476                                 ir_node *lower = get_array_lower_bound(tp, i);
 477                                 ir_node *upper = get_array_upper_bound(tp, i);
 478
 479                                 if (is_Const(lower))
 480                                         fprintf(f, "%ld ", get_tarval_long(get_Const_tarval(lower)));
 481                                 else
 482                                         panic("Lower array bound is not constant");
 483
 484                                 if (is_Const(upper))
 485                                         fprintf(f, "%ld ", get_tarval_long(get_Const_tarval(upper)));
 486                                 else if (is_Unknown(upper))
 487                                         fputs("unknown ", f);
 488                                 else
 489                                         panic("Upper array bound is not constant");
 490                         }
 491                         break;
 492
 493                 case tpo_method:
 494                         nparams  = get_method_n_params(tp);
 495                         nresults = get_method_n_ress(tp);
 496                         fprintf(f, "0x%X 0x%X %i %i ", get_method_calling_convention(tp),
 497                                 get_method_additional_properties(tp), nparams, nresults);
 498                         for (i = 0; i < nparams; i++)
 499                                 fprintf(f, "%ld ", get_type_nr(get_method_param_type(tp, i)));
 500                         for (i = 0; i < nresults; i++)
 501                                 fprintf(f, "%ld ", get_type_nr(get_method_res_type(tp, i)));
 502                         fprintf(f, "%d ", get_method_first_variadic_param_index(tp));
 503                         break;
 504
 505                 case tpo_pointer:
 506                         write_mode(env, get_type_mode(tp));
 507                         fprintf(f, "%ld ", get_type_nr(get_pointer_points_to_type(tp)));
 508                         break;
 509
 510                 default:
 511                         printf("export_type: Unknown type code \"%s\".\n", get_type_tpop_name(tp));
 512                         break;
 513         }
 514         fputc('\n', f);
 515 }
 516
 517 static void export_entity(io_env_t *env, ir_entity *ent)
 518 {
 519         ir_type *owner = get_entity_owner(ent);
 520         fprintf(env->file, "\tentity %ld \"%s\" \"%s\" %ld %ld %d %u %d %s %s %s %s %s ",
 521                         get_entity_nr(ent),
 522                         get_entity_name(ent),
 523                         ent->ld_name ? get_id_str(ent->ld_name) : "",
 524                         get_type_nr(get_entity_type(ent)),
 525                         get_type_nr(owner),
 526                         get_entity_offset(ent),
 527                         (unsigned) get_entity_offset_bits_remainder(ent),
 528                         is_entity_compiler_generated(ent),
 529                         get_allocation_name(get_entity_allocation(ent)),
 530                         get_visibility_name(get_entity_visibility(ent)),
 531                         get_variability_name(get_entity_variability(ent)),
 532                         get_peculiarity_name(get_entity_peculiarity(ent)),
 533                         get_volatility_name(get_entity_volatility(ent)));
 534
 535         /* TODO: inheritance stuff for class entities not supported yet */
 536         if (is_Class_type(owner) && owner != get_glob_type())
 537                 printf("Inheritance of class entities not supported yet!\n");
 538
 539         if (get_entity_variability(ent) != variability_uninitialized &&
 540             get_entity_visibility(ent) != visibility_external_allocated)
 541         {
 542                 if (is_compound_entity(ent)) {
 543                         if (has_entity_initializer(ent)) {
 544                                 fputs("initializer ", env->file);
 545                                 write_initializer(env, get_entity_initializer(ent));
 546                         } else {
 547                                 int i, n = get_compound_ent_n_values(ent);
 548                                 fputs("noninitializer ", env->file);
 549                                 fprintf(env->file, "%d ", n);
 550                                 for (i = 0; i < n; i++) {
 551                                         ir_entity *member = get_compound_ent_value_member(ent, i);
 552                                         ir_node   *irn    = get_compound_ent_value(ent, i);
 553                                         fprintf(env->file, "%ld %ld ", get_entity_nr(member), get_irn_node_nr(irn));
 554                                 }
 555                         }
 556                 } else {
 557                         ir_node *irn = get_atomic_ent_value(ent);
 558                         fprintf(env->file, "%ld ", get_irn_node_nr(irn));
 559                 }
 560         }
 561
 562         fputc('\n', env->file);
 563 }
 564
 565 static void export_type_or_ent_pre(type_or_ent tore, void *ctx)
 566 {
 567         io_env_t *env = (io_env_t *) ctx;
 568         if (get_kind(tore.typ) == k_type)
 569                 export_type_pre(env, tore.typ);
 570 }
 571
 572 static void export_type_or_ent_post(type_or_ent tore, void *ctx)
 573 {
 574         io_env_t *env = (io_env_t *) ctx;
 575
 576         switch (get_kind(tore.ent))
 577         {
 578                 case k_entity:
 579                         export_entity(env, tore.ent);
 580                         break;
 581
 582                 case k_type:
 583                         export_type_post(env, tore.typ);
 584                         break;
 585
 586                 default:
 587                         panic("export_type_or_ent_post: Unknown type or entity.");
 588                         break;
 589         }
 590 }
 591
 592 /**
 593  * Walker: exports every node.
 594  */
 595 static void export_node(ir_node *irn, void *ctx)
 596 {
 597         io_env_t *env = (io_env_t *) ctx;
 598         int i, n;
 599         unsigned opcode = get_irn_opcode(irn);
 600
 601         if (env->ignoreblocks && opcode == iro_Block)
 602                 return;
 603
 604         fprintf(env->file, "\t%s %ld [ ", get_irn_opname(irn), get_irn_node_nr(irn));
 605
 606         n = get_irn_arity(irn);
 607         for (i = -1; i < n; i++) {
 608                 ir_node *pred = get_irn_n(irn, i);
 609                 if (pred == NULL) {
 610                         /* Anchor node may have NULL predecessors */
 611                         assert(is_Anchor(irn));
 612                         fputs("-1 ", env->file);
 613                 } else {
 614                         fprintf(env->file, "%ld ", get_irn_node_nr(pred));
 615                 }
 616         }
 617
 618         fprintf(env->file, "] { ");
 619
 620         switch (opcode) {
 621                 #include "gen_irio_export.inl"
 622         }
 623         fputs("}\n", env->file);
 624 }
 625
 626 static void export_modes(io_env_t *env)
 627 {
 628         int i, n_modes = get_irp_n_modes();
 629
 630         fputs("modes {\n", env->file);
 631
 632         for (i = 0; i < n_modes; i++) {
 633                 ir_mode *mode = get_irp_mode(i);
 634                 switch (get_mode_sort(mode))
 635                 {
 636                         case irms_auxiliary:
 637                         case irms_control_flow:
 638                         case irms_memory:
 639                         case irms_internal_boolean:
 640                                 /* skip "internal" modes, which may not be user defined */
 641                                 continue;
 642                         default:
 643                                 break;
 644                 }
 645
 646                 fprintf(env->file, "\tmode \"%s\" 0x%X %d %d %s %d %d ", get_mode_name(mode),
 647                         get_mode_sort(mode), get_mode_size_bits(mode), get_mode_sign(mode),
 648                         get_mode_arithmetic_name(get_mode_arithmetic(mode)), get_mode_modulo_shift(mode),
 649                         get_mode_n_vector_elems(mode));
 650                 if (mode_is_reference(mode)) {
 651                         write_mode(env, get_reference_mode_signed_eq(mode));
 652                         write_mode(env, get_reference_mode_unsigned_eq(mode));
 653                 }
 654                 fputc('\n', env->file);
 655         }
 656
 657         fputs("}\n\n", env->file);
 658 }
 659
 660 /* Exports the whole irp to the given file in a textual form. */
 661 void ir_export(const char *filename)
 662 {
 663         io_env_t env;
 664         int i, n_irgs = get_irp_n_irgs();
 665
 666         env.file = fopen(filename, "wt");
 667         if (!env.file) {
 668                 perror(filename);
 669                 return;
 670         }
 671
 672         export_modes(&env);
 673
 674         fputs("typegraph {\n", env.file);
 675
 676         type_walk_prog(export_type_or_ent_pre, export_type_or_ent_post, &env);
 677
 678         for (i = 0; i < n_irgs; i++) {
 679                 ir_graph *irg = get_irp_irg(i);
 680                 ir_type *valuetype = get_irg_value_param_type(irg);
 681
 682                 fprintf(env.file, "}\n\nirg %ld %ld %ld {\n", get_entity_nr(get_irg_entity(irg)),
 683                         get_type_nr(get_irg_frame_type(irg)),
 684                         valuetype == NULL ? -1 : get_type_nr(valuetype));
 685
 686                 env.ignoreblocks = 0;
 687                 irg_block_walk_graph(irg, NULL, export_node, &env);
 688
 689                 env.ignoreblocks = 1;
 690                 irg_walk_anchors(irg, NULL, export_node, &env);
 691         }
 692
 693         fprintf(env.file, "}\n\nconstirg %ld {\n", get_irn_node_nr(get_const_code_irg()->current_block));
 694
 695         walk_const_code(NULL, export_node, &env);
 696         fputs("}\n", env.file);
 697
 698         fclose(env.file);
 699 }
 700
 701 /* Exports the given irg to the given file. */
 702 void ir_export_irg(ir_graph *irg, const char *filename)
 703 {
 704         io_env_t env;
 705
 706         env.file = fopen(filename, "wt");
 707         if (!env.file) {
 708                 perror(filename);
 709                 return;
 710         }
 711
 712         export_modes(&env);
 713
 714         fputs("typegraph {\n", env.file);
 715
 716         type_walk_irg(irg, export_type_or_ent_pre, export_type_or_ent_post, &env);
 717
 718         fprintf(env.file, "}\n\nirg %ld {\n", get_entity_nr(get_irg_entity(irg)));
 719
 720         env.ignoreblocks = 0;
 721         irg_block_walk_graph(irg, NULL, export_node, &env);
 722
 723         env.ignoreblocks = 1;
 724         irg_walk_anchors(irg, NULL, export_node, &env);
 725
 726         /* TODO: Only output needed constants */
 727         fprintf(env.file, "}\n\nconstirg %ld {\n", get_irn_node_nr(get_const_code_irg()->current_block));
 728         walk_const_code(NULL, export_node, &env);
 729         fputs("}\n", env.file);
 730
 731         fclose(env.file);
 732 }
 733
 734 static void save_lex_state(io_env_t *env, lex_state_t *state)
 735 {
 736         state->offs = ftell(env->file);
 737         state->line = env->line;
 738         state->col  = env->col;
 739 }
 740
 741 static void restore_lex_state(io_env_t *env, lex_state_t *state)
 742 {
 743         fseek(env->file, state->offs, SEEK_SET);
 744         env->line = state->line;
 745         env->col  = state->col;
 746 }
 747
 748 static int read_c(io_env_t *env)
 749 {
 750         int ch = fgetc(env->file);
 751         switch (ch)
 752         {
 753                 case '\t':
 754                         env->col += 4;
 755                         break;
 756
 757                 case '\n':
 758                         env->col = 0;
 759                         env->line++;
 760                         break;
 761
 762                 default:
 763                         env->col++;
 764                         break;
 765         }
 766         return ch;
 767 }
 768
 769 /** Returns the first non-whitespace character or EOF. **/
 770 static int skip_ws(io_env_t *env)
 771 {
 772         while (1)
 773         {
 774                 int ch = read_c(env);
 775                 switch (ch)
 776                 {
 777                         case ' ':
 778                         case '\t':
 779                         case '\n':
 780                         case '\r':
 781                                 break;
 782
 783                         default:
 784                                 return ch;
 785                 }
 786         }
 787 }
 788
 789 static void skip_to(io_env_t *env, char to_ch)
 790 {
 791         int ch;
 792         do
 793                 ch = read_c(env);
 794         while (ch != to_ch && ch != EOF);
 795 }
 796
 797 static int expect_char(io_env_t *env, char ch)
 798 {
 799         int curch = skip_ws(env);
 800         if (curch != ch) {
 801                 printf("Unexpected char '%c', expected '%c' in line %i:%i\n", curch, ch, env->line, env->col);
 802                 return 0;
 803         }
 804         return 1;
 805 }
 806
 807 #define EXPECT(c) if (expect_char(env, (c))) {} else return 0
 808 #define EXPECT_OR_EXIT(c) if (expect_char(env, (c))) {} else exit(1)
 809
 810 inline static const char *read_str_to(io_env_t *env, char *buf, size_t bufsize)
 811 {
 812         size_t i;
 813         for (i = 0; i < bufsize - 1; i++) {
 814                 int ch = read_c(env);
 815                 if (ch == EOF) break;
 816                 switch (ch)
 817                 {
 818                         case ' ':
 819                         case '\t':
 820                         case '\n':
 821                         case '\r':
 822                                 if (i != 0)
 823                                         goto endofword;
 824                                 i--;    /* skip whitespace */
 825                                 break;
 826
 827                         default:
 828                                 buf[i] = ch;
 829                                 break;
 830                 }
 831         }
 832 endofword:
 833         buf[i] = 0;
 834         return buf;
 835 }
 836
 837 static const char *read_str(io_env_t *env)
 838 {
 839         static char buf[1024];
 840         return read_str_to(env, buf, sizeof(buf));
 841 }
 842
 843 static const char *read_qstr_to(io_env_t *env, char *buf, size_t bufsize)
 844 {
 845         size_t i;
 846         EXPECT_OR_EXIT('\"');
 847         for (i = 0; i < bufsize - 1; i++) {
 848                 int ch = read_c(env);
 849                 if (ch == EOF) {
 850                         printf("Unexpected end of quoted string!\n");
 851                         exit(1);
 852                 }
 853                 if (ch == '\"') break;
 854
 855                 buf[i] = ch;
 856         }
 857         if (i == bufsize - 1) {
 858                 printf("Quoted string too long!\n");
 859                 exit(1);
 860         }
 861         buf[i] = 0;
 862         return buf;
 863 }
 864
 865 static const char *read_qstr(io_env_t *env)
 866 {
 867         static char buf[1024];
 868         return read_qstr_to(env, buf, sizeof(buf));
 869 }
 870
 871 static long read_long2(io_env_t *env, char **endptr)
 872 {
 873         static char buf[1024];
 874         return strtol(read_str_to(env, buf, sizeof(buf)), endptr, 0);
 875 }
 876
 877 static long read_long(io_env_t *env)
 878 {
 879         return read_long2(env, NULL);
 880 }
 881
 882 static ir_node *get_node_or_null(io_env_t *env, long nodenr)
 883 {
 884         ir_node *node = (ir_node *) get_id(env, nodenr);
 885         if (node && node->kind != k_ir_node)
 886                 panic("Irn ID %ld collides with something else in line %i:%i\n", nodenr, env->line, env->col);
 887         return node;
 888 }
 889
 890 static ir_node *get_node(io_env_t *env, long nodenr)
 891 {
 892         ir_node *node = get_node_or_null(env, nodenr);
 893         if (!node)
 894                 panic("Unknown node: %ld in line %i:%i\n", nodenr, env->line, env->col);
 895
 896         return node;
 897 }
 898
 899 static ir_node *get_node_or_dummy(io_env_t *env, long nodenr)
 900 {
 901         ir_node *node = get_node_or_null(env, nodenr);
 902         if (node == NULL) {
 903                 node = new_Dummy(mode_X);
 904                 set_id(env, nodenr, node);
 905         }
 906         return node;
 907 }
 908
 909 static ir_type *get_type(io_env_t *env, long typenr)
 910 {
 911         ir_type *type = (ir_type *) get_id(env, typenr);
 912         if (type == NULL)
 913                 panic("Unknown type: %ld in line %i:%i\n", typenr, env->line, env->col);
 914         else if (type->kind != k_type)
 915                 panic("Type ID %ld collides with something else in line %i:%i\n", typenr, env->line, env->col);
 916         return type;
 917 }
 918
 919 static ir_type *read_type(io_env_t *env)
 920 {
 921         return get_type(env, read_long(env));
 922 }
 923
 924 static ir_entity *get_entity(io_env_t *env, long entnr)
 925 {
 926         ir_entity *entity = (ir_entity *) get_id(env, entnr);
 927         if (entity == NULL) {
 928                 printf("Unknown entity: %ld in line %i:%i\n", entnr, env->line, env->col);
 929                 exit(1);
 930         } else if (entity->kind != k_entity)
 931                 panic("Entity ID %ld collides with something else in line %i:%i\n", entnr, env->line, env->col);
 932         return entity;
 933 }
 934
 935 static ir_entity *read_entity(io_env_t *env)
 936 {
 937         return get_entity(env, read_long(env));
 938 }
 939
 940 static ir_mode *read_mode(io_env_t *env)
 941 {
 942         static char buf[128];
 943         int i, n;
 944
 945         read_str_to(env, buf, sizeof(buf));
 946
 947         n = get_irp_n_modes();
 948         for (i = 0; i < n; i++) {
 949                 ir_mode *mode = get_irp_mode(i);
 950                 if (!strcmp(buf, get_mode_name(mode)))
 951                         return mode;
 952         }
 953
 954         printf("Unknown mode \"%s\" in line %i:%i\n", buf, env->line, env->col);
 955         return mode_ANY;
 956 }
 957
 958 static const char *get_typetag_name(typetag_t typetag)
 959 {
 960         switch (typetag)
 961         {
 962                 case tt_align:       return "align";
 963                 case tt_allocation:  return "allocation";
 964                 case tt_builtin:     return "builtin kind";
 965                 case tt_initializer: return "initializer kind";
 966                 case tt_iro:         return "opcode";
 967                 case tt_peculiarity: return "peculiarity";
 968                 case tt_pin_state:   return "pin state";
 969                 case tt_tpo:         return "type";
 970                 case tt_type_state:  return "type state";
 971                 case tt_variability: return "variability";
 972                 case tt_visibility:  return "visibility";
 973                 case tt_volatility:  return "volatility";
 974                 default: return "<UNKNOWN>";
 975         }
 976 }
 977
 978 /**
 979  * Read and decode an enum constant.
 980  */
 981 static unsigned read_enum(io_env_t *env, typetag_t typetag)
 982 {
 983         static char buf[128];
 984         unsigned code = symbol(read_str_to(env, buf, sizeof(buf)), typetag);
 985         if (code != SYMERROR)
 986                 return code;
 987
 988         printf("Invalid %s: \"%s\" in %i:%i\n", get_typetag_name(typetag), buf, env->line, env->col);
 989         return 0;
 990 }
 991
 992 #define read_align(env)              ((ir_align)              read_enum(env, tt_align))
 993 #define read_allocation(env)         ((ir_allocation)         read_enum(env, tt_allocation))
 994 #define read_builtin_kind(env)       ((ir_builtin_kind)       read_enum(env, tt_builtin))
 995 #define read_cond_kind(env)          ((cond_kind)             read_enum(env, tt_cond_kind))
 996 #define read_cond_jmp_predicate(env) ((cond_jmp_predicate)    read_enum(env, tt_cond_jmp_predicate))
 997 #define read_initializer_kind(env)   ((ir_initializer_kind_t) read_enum(env, tt_initializer))
 998 #define read_mode_arithmetic(env)    ((ir_mode_arithmetic)    read_enum(env, tt_mode_arithmetic))
 999 #define read_peculiarity(env)        ((ir_peculiarity)        read_enum(env, tt_peculiarity))
1000 #define read_pin_state(env)          ((op_pin_state)          read_enum(env, tt_pin_state))
1001 #define read_type_state(env)         ((ir_type_state)         read_enum(env, tt_type_state))
1002 #define read_variability(env)        ((ir_variability)        read_enum(env, tt_variability))
1003 #define read_visibility(env)         ((ir_visibility)         read_enum(env, tt_visibility))
1004 #define read_volatility(env)         ((ir_volatility)         read_enum(env, tt_volatility))
1005
1006 static ir_cons_flags get_cons_flags(io_env_t *env)
1007 {
1008         ir_cons_flags flags = cons_none;
1009
1010         op_pin_state pinstate = read_pin_state(env);
1011         switch (pinstate)
1012         {
1013                 case op_pin_state_floats: flags |= cons_floats; break;
1014                 case op_pin_state_pinned: break;
1015                 default:
1016                         panic("Error in %i:%i: Invalid pinstate: %s", env->line, env->col, get_op_pin_state_name(pinstate));
1017         }
1018
1019         if (read_volatility(env) == volatility_is_volatile)
1020                 flags |= cons_volatile;
1021         if (read_align(env) == align_non_aligned)
1022                 flags |= cons_unaligned;
1023
1024         return flags;
1025 }
1026
1027 static tarval *read_tv(io_env_t *env)
1028 {
1029         static char buf[128];
1030         ir_mode *tvmode = read_mode(env);
1031         read_str_to(env, buf, sizeof(buf));
1032         return new_tarval_from_str(buf, strlen(buf), tvmode);
1033 }
1034
1035 static ir_initializer_t *read_initializer(io_env_t *env)
1036 {
1037         ir_initializer_kind_t ini_kind = read_initializer_kind(env);
1038
1039         switch (ini_kind)
1040         {
1041                 case IR_INITIALIZER_CONST:
1042                 {
1043                         ir_node *irn = get_node_or_dummy(env, read_long(env));
1044                         return create_initializer_const(irn);
1045                 }
1046
1047                 case IR_INITIALIZER_TARVAL:
1048                         return create_initializer_tarval(read_tv(env));
1049
1050                 case IR_INITIALIZER_NULL:
1051                         return get_initializer_null();
1052
1053                 case IR_INITIALIZER_COMPOUND:
1054                 {
1055                         unsigned i, n = (unsigned) read_long(env);
1056                         ir_initializer_t *ini = create_initializer_compound(n);
1057                         for (i = 0; i < n; i++) {
1058                                 ir_initializer_t *curini = read_initializer(env);
1059                                 set_initializer_compound_value(ini, i, curini);
1060                         }
1061                         return ini;
1062                 }
1063
1064                 default:
1065                         panic("Unknown initializer kind");
1066         }
1067 }
1068
1069
1070 /** Reads a type description and remembers it by its id. */
1071 static void import_type(io_env_t *env, keyword_t kwkind)
1072 {
1073         int            i;
1074         ir_type       *type;
1075         long           typenr = read_long(env);
1076         const char    *tpop   = read_str(env);
1077         unsigned       size   = (unsigned) read_long(env);
1078         unsigned       align  = (unsigned) read_long(env);
1079         ir_type_state  state  = read_type_state(env);
1080         ir_visibility  vis    = read_visibility(env);
1081
1082         const char    *kindstr;
1083
1084         if (kwkind == kw_frametype) {
1085                 if (symbol(tpop, tt_tpo) != tpo_class) {
1086                         printf("Frame type must be a class type in line %i:%i\n", env->line, env->col);
1087                         skip_to(env, '\n');
1088                         return;
1089                 }
1090
1091                 type = new_type_frame();
1092                 set_type_size_bytes(type, size);
1093
1094                 kindstr = "frametype";
1095         } else if (kwkind == kw_valuetype) {
1096                 if (symbol(tpop, tt_tpo) != tpo_struct) {
1097                         printf("Value type must be a struct type in line %i:%i\n", env->line, env->col);
1098                         skip_to(env, '\n');
1099                         return;
1100                 }
1101
1102                 type = new_type_value();
1103                 set_type_size_bytes(type, size);
1104
1105                 kindstr = "valuetype";
1106         } else {
1107                 switch (symbol(tpop, tt_tpo))
1108                 {
1109                         case tpo_array:
1110                         {
1111                                 int ndims = (int) read_long(env);
1112                                 long elemtypenr = read_long(env);
1113                                 ir_type *elemtype = get_type(env, elemtypenr);
1114
1115                                 type = new_type_array(ndims, elemtype);
1116                                 for (i = 0; i < ndims; i++) {
1117                                         const char *str = read_str(env);
1118                                         if (strcmp(str, "unknown") != 0) {
1119                                                 long lowerbound = strtol(str, NULL, 0);
1120                                                 set_array_lower_bound_int(type, i, lowerbound);
1121                                         }
1122                                         str = read_str(env);
1123                                         if (strcmp(str, "unknown") != 0) {
1124                                                 long upperbound = strtol(str, NULL, 0);
1125                                                 set_array_upper_bound_int(type, i, upperbound);
1126                                         }
1127                                 }
1128                                 set_type_size_bytes(type, size);
1129                                 break;
1130                         }
1131
1132                         case tpo_class: {
1133                                 const char *name = read_qstr(env);
1134                                 ident      *id   = new_id_from_str(name);
1135
1136                                 if(typenr == (long) IR_SEGMENT_GLOBAL)
1137                                         type = get_glob_type();
1138                                 else
1139                                         type = new_type_class(id);
1140                                 set_type_size_bytes(type, size);
1141                                 break;
1142                         }
1143
1144                         case tpo_method:
1145                         {
1146                                 unsigned callingconv = (unsigned) read_long(env);
1147                                 unsigned addprops    = (unsigned) read_long(env);
1148                                 int nparams          = (int)      read_long(env);
1149                                 int nresults         = (int)      read_long(env);
1150                                 int variaindex;
1151
1152                                 type = new_type_method(nparams, nresults);
1153
1154                                 for (i = 0; i < nparams; i++) {
1155                                         long     typenr = read_long(env);
1156                                         ir_type *paramtype = get_type(env, typenr);
1157
1158                                         set_method_param_type(type, i, paramtype);
1159                                 }
1160                                 for (i = 0; i < nresults; i++) {
1161                                         long typenr = read_long(env);
1162                                         ir_type *restype = get_type(env, typenr);
1163
1164                                         set_method_res_type(type, i, restype);
1165                                 }
1166
1167                                 variaindex = (int) read_long(env);
1168                                 if (variaindex != -1) {
1169                                         set_method_variadicity(type, variadicity_variadic);
1170                                         if (variaindex != nparams)
1171                                                 set_method_first_variadic_param_index(type, variaindex);
1172                                 }
1173
1174                                 set_method_calling_convention(type, callingconv);
1175                                 set_method_additional_properties(type, addprops);
1176                                 break;
1177                         }
1178
1179                         case tpo_pointer:
1180                         {
1181                                 ir_mode *mode     = read_mode(env);
1182                                 ir_type *pointsto = get_type(env, read_long(env));
1183                                 type = new_type_pointer(pointsto);
1184                                 set_type_mode(type, mode);
1185                                 break;
1186                         }
1187
1188                         case tpo_primitive:
1189                         {
1190                                 ir_mode *mode = read_mode(env);
1191                                 type = new_type_primitive(mode);
1192                                 break;
1193                         }
1194
1195                         case tpo_struct: {
1196                                 const char *name = read_qstr(env);
1197                                 ident      *id   = new_id_from_str(name);
1198
1199                                 if(typenr < (long) IR_SEGMENT_COUNT)
1200                                         type = get_segment_type((ir_segment_t) typenr);
1201                                 else
1202                                         type = new_type_struct(id);
1203                                 set_type_size_bytes(type, size);
1204                                 break;
1205                         }
1206
1207                         case tpo_union: {
1208                                 const char *name = read_qstr(env);
1209                                 ident      *id   = new_id_from_str(name);
1210
1211                                 type = new_type_union(id);
1212                                 set_type_size_bytes(type, size);
1213                                 break;
1214                         }
1215
1216                         case tpo_unknown:
1217                                 return;   /* ignore unknown type */
1218
1219                         default:
1220                                 if (typenr != 0)  /* ignore global type */
1221                                         printf("Unknown type kind: \"%s\" in line %i:%i\n", tpop, env->line, env->col);
1222                                 skip_to(env, '\n');
1223                                 return;
1224                 }
1225                 kindstr = "type";
1226         }
1227
1228         set_type_alignment_bytes(type, align);
1229         set_type_visibility(type, vis);
1230
1231         if (state == layout_fixed)
1232                 ARR_APP1(ir_type *, env->fixedtypes, type);
1233
1234         set_id(env, typenr, type);
1235         printf("Insert %s %ld\n", kindstr, typenr);
1236 }
1237
1238 /** Reads an entity description and remembers it by its id. */
1239 static void import_entity(io_env_t *env)
1240 {
1241         char          buf[1024], buf2[1024];
1242         long          entnr       = read_long(env);
1243         const char   *name        = read_qstr_to(env, buf, sizeof(buf));
1244         const char   *ld_name     = read_qstr_to(env, buf2, sizeof(buf2));
1245         long          typenr      = read_long(env);
1246         long          ownertypenr = read_long(env);
1247
1248         ir_type   *type      = get_type(env, typenr);
1249         ir_type   *ownertype = !ownertypenr ? get_glob_type() : get_type(env, ownertypenr);
1250         ir_entity *entity    = new_entity(ownertype, new_id_from_str(name), type);
1251
1252         if (*ld_name)
1253                 set_entity_ld_ident(entity, new_id_from_str(ld_name));
1254         set_entity_offset     (entity, (int) read_long(env));
1255         set_entity_offset_bits_remainder(entity, (unsigned char) read_long(env));
1256         set_entity_compiler_generated(entity, (int) read_long(env));
1257         set_entity_allocation (entity, read_allocation(env));
1258         set_entity_visibility (entity, read_visibility(env));
1259         set_entity_variability(entity, read_variability(env));
1260         set_entity_peculiarity(entity, read_peculiarity(env));
1261         set_entity_volatility (entity, read_volatility(env));
1262
1263         if (get_entity_variability(entity) != variability_uninitialized &&
1264             get_entity_visibility(entity) != visibility_external_allocated)
1265         {
1266                 if (is_compound_entity(entity)) {
1267                         if (!strcmp(read_str_to(env, buf2, sizeof(buf2)), "initializer")) {
1268                                 set_entity_initializer(entity, read_initializer(env));
1269                         } else {
1270                                 int i, n = (int) read_long(env);
1271                                 for (i = 0; i < n; i++) {
1272                                         ir_entity *member = get_entity(env, read_long(env));
1273                                         ir_node   *irn    = get_node_or_dummy(env, read_long(env));
1274                                         add_compound_ent_value(entity, irn, member);
1275                                 }
1276                         }
1277                 } else {
1278                         ir_node *irn = get_node_or_dummy(env, read_long(env));
1279                         set_atomic_ent_value(entity, irn);
1280                 }
1281         }
1282
1283         set_id(env, entnr, entity);
1284         printf("Insert entity %s %ld\n", name, entnr);
1285 }
1286
1287 /** Parses the whole type graph. */
1288 static int parse_typegraph(io_env_t *env)
1289 {
1290         const char *kind;
1291         keyword_t kwkind;
1292         lex_state_t oldstate;
1293
1294         EXPECT('{');
1295
1296         save_lex_state(env, &oldstate);
1297
1298         current_ir_graph = get_const_code_irg();
1299
1300         /* parse all types first */
1301         while (1) {
1302                 kind = read_str(env);
1303                 if (kind[0] == '}' && kind[1] == '\0')
1304                         break;
1305
1306                 kwkind = (keyword_t) symbol(kind, tt_keyword);
1307                 switch (kwkind)
1308                 {
1309                         case kw_type:
1310                         case kw_frametype:
1311                         case kw_valuetype:
1312                                 import_type(env, kwkind);
1313                                 break;
1314
1315                         default:
1316                                 skip_to(env, '\n');
1317                                 break;
1318                 }
1319         }
1320
1321         /* now parse rest */
1322         restore_lex_state(env, &oldstate);
1323
1324         while (1) {
1325                 kind = read_str(env);
1326                 if (kind[0] == '}' && kind[1] == '\0')
1327                         break;
1328
1329                 switch (symbol(kind, tt_keyword))
1330                 {
1331                         case kw_type:
1332                         case kw_frametype:
1333                         case kw_valuetype:
1334                                 skip_to(env, '\n');
1335                                 break;
1336
1337                         case kw_entity:
1338                                 import_entity(env);
1339                                 break;
1340
1341                         default:
1342                                 printf("Type graph element not supported yet: \"%s\"\n", kind);
1343                                 skip_to(env, '\n');
1344                                 break;
1345                 }
1346         }
1347         return 1;
1348 }
1349
1350 static int read_node_header(io_env_t *env, long *nodenr, long **preds, const char **nodename)
1351 {
1352         int numpreds;
1353         *nodename = read_str(env);
1354         if ((*nodename)[0] == '}' && !(*nodename)[1]) return -1;  /* end-of-graph */
1355
1356         *nodenr = read_long(env);
1357
1358         ARR_RESIZE(ir_node *, *preds, 0);
1359
1360         EXPECT('[');
1361         for (numpreds = 0; !feof(env->file); numpreds++) {
1362                 char *endptr;
1363                 ARR_APP1(long, *preds, read_long2(env, &endptr));
1364                 if (*endptr == ']') break;
1365         }
1366         return numpreds;
1367 }
1368
1369 /** Parses an IRG. */
1370 static int parse_graph(io_env_t *env, ir_graph *irg)
1371 {
1372         long       *preds = NEW_ARR_F(long, 16);
1373         ir_node   **prednodes = NEW_ARR_F(ir_node *, 16);
1374         int         i, numpreds, ret = 1;
1375         long        nodenr;
1376         const char *nodename;
1377         ir_node    *node, *newnode;
1378
1379         current_ir_graph = irg;
1380
1381         EXPECT('{');
1382
1383         while (1) {
1384                 numpreds = read_node_header(env, &nodenr, &preds, &nodename);
1385                 if (numpreds == -1) break;  /* end-of-graph */
1386                 if (!numpreds) {
1387                         printf("Node %s %ld is missing predecessors!", nodename, nodenr);
1388                         ret = 0;
1389                         break;
1390                 }
1391
1392                 ARR_RESIZE(ir_node *, prednodes, numpreds);
1393                 for (i = 0; i < numpreds - 1; i++)
1394                         prednodes[i] = get_node_or_dummy(env, preds[i + 1]);
1395
1396                 node = get_node_or_null(env, nodenr);
1397                 newnode = NULL;
1398
1399                 EXPECT('{');
1400
1401                 switch (symbol(nodename, tt_iro))
1402                 {
1403                         case iro_End:
1404                         {
1405                                 ir_node *newendblock = get_node(env, preds[0]);
1406                                 newnode = get_irg_end(current_ir_graph);
1407                                 exchange(get_nodes_block(newnode), newendblock);
1408                                 for (i = 0; i < numpreds - 1; i++)
1409                                         add_irn_n(newnode, prednodes[i]);
1410                                 break;
1411                         }
1412
1413                         case iro_Start:
1414                         {
1415                                 ir_node *newstartblock = get_node(env, preds[0]);
1416                                 newnode = get_irg_start(current_ir_graph);
1417                                 exchange(get_nodes_block(newnode), newstartblock);
1418                                 break;
1419                         }
1420
1421                         case iro_Block:
1422                         {
1423                                 if (preds[0] != nodenr) {
1424                                         printf("Invalid block: preds[0] != nodenr (%ld != %ld)\n",
1425                                                 preds[0], nodenr);
1426                                         ret = 0;
1427                                         goto endloop;
1428                                 }
1429
1430                                 newnode = new_Block(numpreds - 1, prednodes);
1431                                 break;
1432                         }
1433
1434                         case iro_Anchor:
1435                                 newnode = current_ir_graph->anchor;
1436                                 for (i = 0; i < numpreds - 1; i++)
1437                                         set_irn_n(newnode, i, prednodes[i]);
1438                                 set_irn_n(newnode, -1, get_node(env, preds[0]));
1439                                 break;
1440
1441                         case iro_SymConst:
1442                         {
1443                                 long entnr = read_long(env);
1444                                 union symconst_symbol sym;
1445                                 sym.entity_p = get_entity(env, entnr);
1446                                 newnode = new_SymConst(mode_P, sym, symconst_addr_ent);
1447                                 break;
1448                         }
1449
1450                         #include "gen_irio_import.inl"
1451
1452                         default:
1453                                 goto notsupported;
1454                 }
1455
1456                 EXPECT('}');
1457
1458                 if (!newnode) {
1459 notsupported:
1460                         panic("Node type not supported yet: %s in line %i:%i\n", nodename, env->line, env->col);
1461                 }
1462
1463                 if (node)
1464                         exchange(node, newnode);
1465                 /* Always update hash entry to avoid more uses of id nodes */
1466                 set_id(env, nodenr, newnode);
1467                 /* printf("Insert %s %ld\n", nodename, nodenr); */
1468         }
1469
1470 endloop:
1471         DEL_ARR_F(preds);
1472         DEL_ARR_F(prednodes);
1473
1474         return ret;
1475 }
1476
1477 static int parse_modes(io_env_t *env)
1478 {
1479         const char *kind;
1480         keyword_t kwkind;
1481
1482         EXPECT('{');
1483
1484         while (1) {
1485                 kind = read_str(env);
1486                 if (kind[0] == '}' && kind[1] == '\0')
1487                         break;
1488
1489                 kwkind = (keyword_t) symbol(kind, tt_keyword);
1490                 switch (kwkind)
1491                 {
1492                         case kw_mode:
1493                         {
1494                                 const char *name = read_qstr(env);
1495                                 ir_mode_sort sort = (ir_mode_sort) read_long(env);
1496                                 int size = read_long(env);
1497                                 int sign = read_long(env);
1498                                 ir_mode_arithmetic arith = read_mode_arithmetic(env);
1499                                 unsigned modulo_shift = read_long(env);
1500                                 int vector_elems = read_long(env);
1501                                 ir_mode *mode;
1502
1503                                 if (vector_elems != 1) {
1504                                         panic("no support for import of vector modes yes");
1505                                 }
1506
1507                                 mode = new_ir_mode(name, sort, size, sign, arith, modulo_shift);
1508                                 if (mode_is_reference(mode)) {
1509                                         set_reference_mode_signed_eq(mode, read_mode(env));
1510                                         set_reference_mode_unsigned_eq(mode, read_mode(env));
1511                                 }
1512                                 break;
1513                         }
1514
1515                         default:
1516                                 skip_to(env, '\n');
1517                                 break;
1518                 }
1519         }
1520         return 1;
1521 }
1522
1523 /** Imports an previously exported textual representation of an (maybe partial) irp */
1524 void ir_import(const char *filename)
1525 {
1526         int oldoptimize = get_optimize();
1527         firm_verification_t oldver = get_node_verification_mode();
1528         io_env_t ioenv;
1529         io_env_t *env = &ioenv;
1530         int i, n;
1531
1532         symtbl_init();
1533
1534         memset(env, 0, sizeof(*env));
1535         env->idset = new_set(id_cmp, 128);
1536         env->fixedtypes = NEW_ARR_F(ir_type *, 0);
1537
1538         env->file = fopen(filename, "rt");
1539         if (!env->file) {
1540                 perror(filename);
1541                 exit(1);
1542         }
1543
1544         set_optimize(0);
1545         do_node_verification(FIRM_VERIFICATION_OFF);
1546
1547         while (1) {
1548                 const char *str = read_str(env);
1549                 if (!*str) break;
1550                 switch (symbol(str, tt_keyword))
1551                 {
1552                         case kw_modes:
1553                                 if (!parse_modes(env)) goto end;
1554                                 break;
1555
1556                         case kw_typegraph:
1557                                 if (!parse_typegraph(env)) goto end;
1558                                 break;
1559
1560                         case kw_irg:
1561                         {
1562                                 ir_entity *irgent = get_entity(env, read_long(env));
1563                                 long valuetypeid;
1564                                 ir_graph *irg = new_ir_graph(irgent, 0);
1565                                 set_irg_frame_type(irg, get_type(env, read_long(env)));
1566                                 valuetypeid = read_long(env);
1567                                 if (valuetypeid != -1)
1568                                         set_method_value_param_type(get_entity_type(irgent),
1569                                                         get_type(env, valuetypeid));
1570
1571                                 if (!parse_graph(env, irg)) goto end;
1572                                 break;
1573                         }
1574
1575                         case kw_constirg:
1576                         {
1577                                 ir_graph *constirg = get_const_code_irg();
1578                                 long bodyblockid = read_long(env);
1579                                 set_id(env, bodyblockid, constirg->current_block);
1580                                 if (!parse_graph(env, constirg)) goto end;
1581                                 break;
1582                         }
1583                 }
1584         }
1585
1586 end:
1587         n = ARR_LEN(env->fixedtypes);
1588         for (i = 0; i < n; i++)
1589                 set_type_state(env->fixedtypes[i], layout_fixed);
1590
1591         DEL_ARR_F(env->fixedtypes);
1592
1593         del_set(env->idset);
1594
1595         irp_finalize_cons();
1596
1597         do_node_verification(oldver);
1598         set_optimize(oldoptimize);
1599
1600         fclose(env->file);
1601 }