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_addess);
 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 \"%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_name(tp),
 394                         get_type_size_bytes(tp),
 395                         get_type_alignment_bytes(tp),
 396                         get_type_state_name(get_type_state(tp)),
 397                         get_visibility_name(get_type_visibility(tp)));
 398 }
 399
 400 static void export_type_pre(io_env_t *env, ir_type *tp)
 401 {
 402         FILE *f = env->file;
 403
 404         /* skip types to be handled by post walker */
 405         switch (get_type_tpop_code(tp))
 406         {
 407                 case tpo_array:
 408                 case tpo_method:
 409                 case tpo_pointer:
 410                         return;
 411                 default:
 412                         break;
 413         }
 414
 415         export_type_common(env, tp);
 416
 417         switch (get_type_tpop_code(tp))
 418         {
 419                 case tpo_class:
 420                         /* TODO: inheritance stuff not supported yet */
 421                         printf("Inheritance of classes not supported yet!\n");
 422                         break;
 423
 424                 case tpo_primitive:
 425                         write_mode(env, get_type_mode(tp));
 426                         break;
 427
 428                 case tpo_struct:
 429                         break;
 430
 431                 case tpo_union:
 432                         break;
 433
 434                 case tpo_unknown:
 435                         break;
 436
 437                 default:
 438                         printf("export_type_pre: Unknown type code \"%s\".\n", get_type_tpop_name(tp));
 439                         break;
 440         }
 441         fputc('\n', f);
 442 }
 443
 444 static void export_type_post(io_env_t *env, ir_type *tp)
 445 {
 446         FILE *f = env->file;
 447         int i, n, nparams, nresults;
 448
 449         /* skip types already handled by pre walker */
 450         switch (get_type_tpop_code(tp))
 451         {
 452                 case tpo_class:
 453                 case tpo_primitive:
 454                 case tpo_struct:
 455                 case tpo_union:
 456                 case tpo_unknown:
 457                         return;
 458                 default:
 459                         break;
 460         }
 461
 462         export_type_common(env, tp);
 463
 464         switch (get_type_tpop_code(tp))
 465         {
 466                 case tpo_array:
 467                         n = get_array_n_dimensions(tp);
 468                         fprintf(f, "%i %ld ", n, get_type_nr(get_array_element_type(tp)));
 469                         for (i = 0; i < n; i++) {
 470                                 ir_node *lower = get_array_lower_bound(tp, i);
 471                                 ir_node *upper = get_array_upper_bound(tp, i);
 472
 473                                 if (is_Const(lower))
 474                                         fprintf(f, "%ld ", get_tarval_long(get_Const_tarval(lower)));
 475                                 else
 476                                         panic("Lower array bound is not constant");
 477
 478                                 if (is_Const(upper))
 479                                         fprintf(f, "%ld ", get_tarval_long(get_Const_tarval(upper)));
 480                                 else if (is_Unknown(upper))
 481                                         fputs("unknown ", f);
 482                                 else
 483                                         panic("Upper array bound is not constant");
 484                         }
 485                         break;
 486
 487                 case tpo_method:
 488                         nparams  = get_method_n_params(tp);
 489                         nresults = get_method_n_ress(tp);
 490                         fprintf(f, "0x%X 0x%X %i %i ", get_method_calling_convention(tp),
 491                                 get_method_additional_properties(tp), nparams, nresults);
 492                         for (i = 0; i < nparams; i++)
 493                                 fprintf(f, "%ld ", get_type_nr(get_method_param_type(tp, i)));
 494                         for (i = 0; i < nresults; i++)
 495                                 fprintf(f, "%ld ", get_type_nr(get_method_res_type(tp, i)));
 496                         fprintf(f, "%d ", get_method_first_variadic_param_index(tp));
 497                         break;
 498
 499                 case tpo_pointer:
 500                         write_mode(env, get_type_mode(tp));
 501                         fprintf(f, "%ld ", get_type_nr(get_pointer_points_to_type(tp)));
 502                         break;
 503
 504                 default:
 505                         printf("export_type: Unknown type code \"%s\".\n", get_type_tpop_name(tp));
 506                         break;
 507         }
 508         fputc('\n', f);
 509 }
 510
 511 static void export_entity(io_env_t *env, ir_entity *ent)
 512 {
 513         ir_type *owner = get_entity_owner(ent);
 514         fprintf(env->file, "\tentity %ld \"%s\" \"%s\" %ld %ld %d %u %d %s %s %s %s %s ",
 515                         get_entity_nr(ent),
 516                         get_entity_name(ent),
 517                         ent->ld_name ? get_id_str(ent->ld_name) : "",
 518                         get_type_nr(get_entity_type(ent)),
 519                         get_type_nr(owner),
 520                         get_entity_offset(ent),
 521                         (unsigned) get_entity_offset_bits_remainder(ent),
 522                         is_entity_compiler_generated(ent),
 523                         get_allocation_name(get_entity_allocation(ent)),
 524                         get_visibility_name(get_entity_visibility(ent)),
 525                         get_variability_name(get_entity_variability(ent)),
 526                         get_peculiarity_name(get_entity_peculiarity(ent)),
 527                         get_volatility_name(get_entity_volatility(ent)));
 528
 529         /* TODO: inheritance stuff for class entities not supported yet */
 530         if (is_Class_type(owner) && owner != get_glob_type())
 531                 printf("Inheritance of class entities not supported yet!\n");
 532
 533         if (get_entity_variability(ent) != variability_uninitialized &&
 534             get_entity_visibility(ent) != visibility_external_allocated)
 535         {
 536                 if (is_compound_entity(ent)) {
 537                         if (has_entity_initializer(ent)) {
 538                                 fputs("initializer ", env->file);
 539                                 write_initializer(env, get_entity_initializer(ent));
 540                         } else {
 541                                 int i, n = get_compound_ent_n_values(ent);
 542                                 fputs("noninitializer ", env->file);
 543                                 fprintf(env->file, "%d ", n);
 544                                 for (i = 0; i < n; i++) {
 545                                         ir_entity *member = get_compound_ent_value_member(ent, i);
 546                                         ir_node   *irn    = get_compound_ent_value(ent, i);
 547                                         fprintf(env->file, "%ld %ld ", get_entity_nr(member), get_irn_node_nr(irn));
 548                                 }
 549                         }
 550                 } else {
 551                         ir_node *irn = get_atomic_ent_value(ent);
 552                         fprintf(env->file, "%ld ", get_irn_node_nr(irn));
 553                 }
 554         }
 555
 556         fputc('\n', env->file);
 557 }
 558
 559 static void export_type_or_ent_pre(type_or_ent tore, void *ctx)
 560 {
 561         io_env_t *env = (io_env_t *) ctx;
 562         if (get_kind(tore.typ) == k_type)
 563                 export_type_pre(env, tore.typ);
 564 }
 565
 566 static void export_type_or_ent_post(type_or_ent tore, void *ctx)
 567 {
 568         io_env_t *env = (io_env_t *) ctx;
 569
 570         switch (get_kind(tore.ent))
 571         {
 572                 case k_entity:
 573                         export_entity(env, tore.ent);
 574                         break;
 575
 576                 case k_type:
 577                         export_type_post(env, tore.typ);
 578                         break;
 579
 580                 default:
 581                         panic("export_type_or_ent_post: Unknown type or entity.");
 582                         break;
 583         }
 584 }
 585
 586 static void export_node(ir_node *irn, void *ctx)
 587 {
 588         io_env_t *env = (io_env_t *) ctx;
 589         int i, n;
 590         unsigned opcode = get_irn_opcode(irn);
 591
 592         if (env->ignoreblocks && opcode == iro_Block)
 593                 return;
 594
 595         n = get_irn_arity(irn);
 596
 597         fprintf(env->file, "\t%s %ld [ ", get_irn_opname(irn), get_irn_node_nr(irn));
 598
 599         for (i = -1; i < n; i++) {
 600                 ir_node *pred = get_irn_n(irn, i);
 601                 if (pred == NULL) {
 602                         /* Anchor node may have NULL predecessors */
 603                         assert(is_Anchor(irn));
 604                         fputs("-1 ", env->file);
 605                 } else {
 606                         fprintf(env->file, "%ld ", get_irn_node_nr(pred));
 607                 }
 608         }
 609
 610         fprintf(env->file, "] { ");
 611
 612         switch (opcode)
 613         {
 614                 #include "gen_irio_export.inl"
 615         }
 616         fputs("}\n", env->file);
 617 }
 618
 619 static void export_modes(io_env_t *env)
 620 {
 621         int i, n_modes = get_irp_n_modes();
 622
 623         fputs("modes {\n", env->file);
 624
 625         for (i = 0; i < n_modes; i++) {
 626                 ir_mode *mode = get_irp_mode(i);
 627                 switch (get_mode_sort(mode))
 628                 {
 629                         case irms_auxiliary:
 630                         case irms_control_flow:
 631                         case irms_memory:
 632                         case irms_internal_boolean:
 633                                 /* skip "internal" modes, which may not be user defined */
 634                                 continue;
 635                         default:
 636                                 break;
 637                 }
 638
 639                 fprintf(env->file, "\tmode \"%s\" 0x%X %d %d %s %d %d ", get_mode_name(mode),
 640                         get_mode_sort(mode), get_mode_size_bits(mode), get_mode_sign(mode),
 641                         get_mode_arithmetic_name(get_mode_arithmetic(mode)), get_mode_modulo_shift(mode),
 642                         get_mode_n_vector_elems(mode));
 643                 if (mode_is_reference(mode)) {
 644                         write_mode(env, get_reference_mode_signed_eq(mode));
 645                         write_mode(env, get_reference_mode_unsigned_eq(mode));
 646                 }
 647                 fputc('\n', env->file);
 648         }
 649
 650         fputs("}\n\n", env->file);
 651 }
 652
 653 /** Exports the whole irp to the given file in a textual form. */
 654 void ir_export(const char *filename)
 655 {
 656         io_env_t env;
 657         int i, n_irgs = get_irp_n_irgs();
 658
 659         env.file = fopen(filename, "wt");
 660         if (!env.file) {
 661                 perror(filename);
 662                 return;
 663         }
 664
 665         export_modes(&env);
 666
 667         fputs("typegraph {\n", env.file);
 668
 669         type_walk_prog(export_type_or_ent_pre, export_type_or_ent_post, &env);
 670
 671         for (i = 0; i < n_irgs; i++) {
 672                 ir_graph *irg = get_irp_irg(i);
 673                 ir_type *valuetype = get_irg_value_param_type(irg);
 674
 675                 fprintf(env.file, "}\n\nirg %ld %ld %ld {\n", get_entity_nr(get_irg_entity(irg)),
 676                         get_type_nr(get_irg_frame_type(irg)),
 677                         valuetype == NULL ? -1 : get_type_nr(valuetype));
 678
 679                 env.ignoreblocks = 0;
 680                 irg_block_walk_graph(irg, NULL, export_node, &env);
 681
 682                 env.ignoreblocks = 1;
 683                 irg_walk_anchors(irg, NULL, export_node, &env);
 684         }
 685
 686         fprintf(env.file, "}\n\nconstirg %ld {\n", get_irn_node_nr(get_const_code_irg()->current_block));
 687
 688         walk_const_code(NULL, export_node, &env);
 689         fputs("}\n", env.file);
 690
 691         fclose(env.file);
 692 }
 693
 694 /** Exports the given irg to the given file. */
 695 void ir_export_irg(ir_graph *irg, const char *filename)
 696 {
 697         io_env_t env;
 698
 699         env.file = fopen(filename, "wt");
 700         if (!env.file) {
 701                 perror(filename);
 702                 return;
 703         }
 704
 705         export_modes(&env);
 706
 707         fputs("typegraph {\n", env.file);
 708
 709         type_walk_irg(irg, export_type_or_ent_pre, export_type_or_ent_post, &env);
 710
 711         fprintf(env.file, "}\n\nirg %ld {\n", get_entity_nr(get_irg_entity(irg)));
 712
 713         env.ignoreblocks = 0;
 714         irg_block_walk_graph(irg, NULL, export_node, &env);
 715
 716         env.ignoreblocks = 1;
 717         irg_walk_anchors(irg, NULL, export_node, &env);
 718
 719         /* TODO: Only output needed constants */
 720         fprintf(env.file, "}\n\nconstirg %ld {\n", get_irn_node_nr(get_const_code_irg()->current_block));
 721         walk_const_code(NULL, export_node, &env);
 722         fputs("}\n", env.file);
 723
 724         fclose(env.file);
 725 }
 726
 727 static void save_lex_state(io_env_t *env, lex_state_t *state)
 728 {
 729         state->offs = ftell(env->file);
 730         state->line = env->line;
 731         state->col  = env->col;
 732 }
 733
 734 static void restore_lex_state(io_env_t *env, lex_state_t *state)
 735 {
 736         fseek(env->file, state->offs, SEEK_SET);
 737         env->line = state->line;
 738         env->col  = state->col;
 739 }
 740
 741 static int read_c(io_env_t *env)
 742 {
 743         int ch = fgetc(env->file);
 744         switch (ch)
 745         {
 746                 case '\t':
 747                         env->col += 4;
 748                         break;
 749
 750                 case '\n':
 751                         env->col = 0;
 752                         env->line++;
 753                         break;
 754
 755                 default:
 756                         env->col++;
 757                         break;
 758         }
 759         return ch;
 760 }
 761
 762 /** Returns the first non-whitespace character or EOF. **/
 763 static int skip_ws(io_env_t *env)
 764 {
 765         while (1)
 766         {
 767                 int ch = read_c(env);
 768                 switch (ch)
 769                 {
 770                         case ' ':
 771                         case '\t':
 772                         case '\n':
 773                         case '\r':
 774                                 break;
 775
 776                         default:
 777                                 return ch;
 778                 }
 779         }
 780 }
 781
 782 static void skip_to(io_env_t *env, char to_ch)
 783 {
 784         int ch;
 785         do
 786                 ch = read_c(env);
 787         while (ch != to_ch && ch != EOF);
 788 }
 789
 790 static int expect_char(io_env_t *env, char ch)
 791 {
 792         int curch = skip_ws(env);
 793         if (curch != ch) {
 794                 printf("Unexpected char '%c', expected '%c' in line %i:%i\n", curch, ch, env->line, env->col);
 795                 return 0;
 796         }
 797         return 1;
 798 }
 799
 800 #define EXPECT(c) if (expect_char(env, (c))) {} else return 0
 801 #define EXPECT_OR_EXIT(c) if (expect_char(env, (c))) {} else exit(1)
 802
 803 inline static const char *read_str_to(io_env_t *env, char *buf, size_t bufsize)
 804 {
 805         size_t i;
 806         for (i = 0; i < bufsize - 1; i++) {
 807                 int ch = read_c(env);
 808                 if (ch == EOF) break;
 809                 switch (ch)
 810                 {
 811                         case ' ':
 812                         case '\t':
 813                         case '\n':
 814                         case '\r':
 815                                 if (i != 0)
 816                                         goto endofword;
 817                                 i--;    /* skip whitespace */
 818                                 break;
 819
 820                         default:
 821                                 buf[i] = ch;
 822                                 break;
 823                 }
 824         }
 825 endofword:
 826         buf[i] = 0;
 827         return buf;
 828 }
 829
 830 static const char *read_str(io_env_t *env)
 831 {
 832         static char buf[1024];
 833         return read_str_to(env, buf, sizeof(buf));
 834 }
 835
 836 static const char *read_qstr_to(io_env_t *env, char *buf, size_t bufsize)
 837 {
 838         size_t i;
 839         EXPECT_OR_EXIT('\"');
 840         for (i = 0; i < bufsize - 1; i++) {
 841                 int ch = read_c(env);
 842                 if (ch == EOF) {
 843                         printf("Unexpected end of quoted string!\n");
 844                         exit(1);
 845                 }
 846                 if (ch == '\"') break;
 847
 848                 buf[i] = ch;
 849         }
 850         if (i == bufsize - 1) {
 851                 printf("Quoted string too long!\n");
 852                 exit(1);
 853         }
 854         buf[i] = 0;
 855         return buf;
 856 }
 857
 858 static const char *read_qstr(io_env_t *env)
 859 {
 860         static char buf[1024];
 861         return read_qstr_to(env, buf, sizeof(buf));
 862 }
 863
 864 static long read_long2(io_env_t *env, char **endptr)
 865 {
 866         static char buf[1024];
 867         return strtol(read_str_to(env, buf, sizeof(buf)), endptr, 0);
 868 }
 869
 870 static long read_long(io_env_t *env)
 871 {
 872         return read_long2(env, NULL);
 873 }
 874
 875 static ir_node *get_node_or_null(io_env_t *env, long nodenr)
 876 {
 877         ir_node *node = (ir_node *) get_id(env, nodenr);
 878         if (node && node->kind != k_ir_node)
 879                 panic("Irn ID %ld collides with something else in line %i:%i\n", nodenr, env->line, env->col);
 880         return node;
 881 }
 882
 883 static ir_node *get_node(io_env_t *env, long nodenr)
 884 {
 885         ir_node *node = get_node_or_null(env, nodenr);
 886         if (!node)
 887                 panic("Unknown node: %ld in line %i:%i\n", nodenr, env->line, env->col);
 888
 889         return node;
 890 }
 891
 892 static ir_node *get_node_or_dummy(io_env_t *env, long nodenr)
 893 {
 894         ir_node *node = get_node_or_null(env, nodenr);
 895         if (node == NULL) {
 896                 node = new_Dummy(mode_X);
 897                 set_id(env, nodenr, node);
 898         }
 899         return node;
 900 }
 901
 902 static ir_type *get_type(io_env_t *env, long typenr)
 903 {
 904         ir_type *type = (ir_type *) get_id(env, typenr);
 905         if (type == NULL)
 906                 panic("Unknown type: %ld in line %i:%i\n", typenr, env->line, env->col);
 907         else if (type->kind != k_type)
 908                 panic("Type ID %ld collides with something else in line %i:%i\n", typenr, env->line, env->col);
 909         return type;
 910 }
 911
 912 static ir_type *read_type(io_env_t *env)
 913 {
 914         return get_type(env, read_long(env));
 915 }
 916
 917 static ir_entity *get_entity(io_env_t *env, long entnr)
 918 {
 919         ir_entity *entity = (ir_entity *) get_id(env, entnr);
 920         if (entity == NULL) {
 921                 printf("Unknown entity: %ld in line %i:%i\n", entnr, env->line, env->col);
 922                 exit(1);
 923         } else if (entity->kind != k_entity)
 924                 panic("Entity ID %ld collides with something else in line %i:%i\n", entnr, env->line, env->col);
 925         return entity;
 926 }
 927
 928 static ir_entity *read_entity(io_env_t *env)
 929 {
 930         return get_entity(env, read_long(env));
 931 }
 932
 933 static ir_mode *read_mode(io_env_t *env)
 934 {
 935         static char buf[128];
 936         int i, n;
 937
 938         read_str_to(env, buf, sizeof(buf));
 939
 940         n = get_irp_n_modes();
 941         for (i = 0; i < n; i++) {
 942                 ir_mode *mode = get_irp_mode(i);
 943                 if (!strcmp(buf, get_mode_name(mode)))
 944                         return mode;
 945         }
 946
 947         printf("Unknown mode \"%s\" in line %i:%i\n", buf, env->line, env->col);
 948         return mode_ANY;
 949 }
 950
 951 static const char *get_typetag_name(typetag_t typetag)
 952 {
 953         switch (typetag)
 954         {
 955                 case tt_align:       return "align";
 956                 case tt_allocation:  return "allocation";
 957                 case tt_builtin:     return "builtin kind";
 958                 case tt_initializer: return "initializer kind";
 959                 case tt_iro:         return "opcode";
 960                 case tt_peculiarity: return "peculiarity";
 961                 case tt_pin_state:   return "pin state";
 962                 case tt_tpo:         return "type";
 963                 case tt_type_state:  return "type state";
 964                 case tt_variability: return "variability";
 965                 case tt_visibility:  return "visibility";
 966                 case tt_volatility:  return "volatility";
 967                 default: return "<UNKNOWN>";
 968         }
 969 }
 970
 971 /**
 972  * Read and decode an enum constant.
 973  */
 974 static unsigned read_enum(io_env_t *env, typetag_t typetag)
 975 {
 976         static char buf[128];
 977         unsigned code = symbol(read_str_to(env, buf, sizeof(buf)), typetag);
 978         if (code != SYMERROR)
 979                 return code;
 980
 981         printf("Invalid %s: \"%s\" in %i:%i\n", get_typetag_name(typetag), buf, env->line, env->col);
 982         return 0;
 983 }
 984
 985 #define read_align(env)              ((ir_align)              read_enum(env, tt_align))
 986 #define read_allocation(env)         ((ir_allocation)         read_enum(env, tt_allocation))
 987 #define read_builtin_kind(env)       ((ir_builtin_kind)       read_enum(env, tt_builtin))
 988 #define read_cond_kind(env)          ((cond_kind)             read_enum(env, tt_cond_kind))
 989 #define read_cond_jmp_predicate(env) ((cond_jmp_predicate)    read_enum(env, tt_cond_jmp_predicate))
 990 #define read_initializer_kind(env)   ((ir_initializer_kind_t) read_enum(env, tt_initializer))
 991 #define read_mode_arithmetic(env)    ((ir_mode_arithmetic)    read_enum(env, tt_mode_arithmetic))
 992 #define read_peculiarity(env)        ((ir_peculiarity)        read_enum(env, tt_peculiarity))
 993 #define read_pin_state(env)          ((op_pin_state)          read_enum(env, tt_pin_state))
 994 #define read_type_state(env)         ((ir_type_state)         read_enum(env, tt_type_state))
 995 #define read_variability(env)        ((ir_variability)        read_enum(env, tt_variability))
 996 #define read_visibility(env)         ((ir_visibility)         read_enum(env, tt_visibility))
 997 #define read_volatility(env)         ((ir_volatility)         read_enum(env, tt_volatility))
 998
 999 static ir_cons_flags get_cons_flags(io_env_t *env)
1000 {
1001         ir_cons_flags flags = cons_none;
1002
1003         op_pin_state pinstate = read_pin_state(env);
1004         switch (pinstate)
1005         {
1006                 case op_pin_state_floats: flags |= cons_floats; break;
1007                 case op_pin_state_pinned: break;
1008                 default:
1009                         panic("Error in %i:%i: Invalid pinstate: %s", env->line, env->col, get_op_pin_state_name(pinstate));
1010         }
1011
1012         if (read_volatility(env) == volatility_is_volatile)
1013                 flags |= cons_volatile;
1014         if (read_align(env) == align_non_aligned)
1015                 flags |= cons_unaligned;
1016
1017         return flags;
1018 }
1019
1020 static tarval *read_tv(io_env_t *env)
1021 {
1022         static char buf[128];
1023         ir_mode *tvmode = read_mode(env);
1024         read_str_to(env, buf, sizeof(buf));
1025         return new_tarval_from_str(buf, strlen(buf), tvmode);
1026 }
1027
1028 static ir_initializer_t *read_initializer(io_env_t *env)
1029 {
1030         ir_initializer_kind_t ini_kind = read_initializer_kind(env);
1031
1032         switch (ini_kind)
1033         {
1034                 case IR_INITIALIZER_CONST:
1035                 {
1036                         ir_node *irn = get_node_or_dummy(env, read_long(env));
1037                         return create_initializer_const(irn);
1038                 }
1039
1040                 case IR_INITIALIZER_TARVAL:
1041                         return create_initializer_tarval(read_tv(env));
1042
1043                 case IR_INITIALIZER_NULL:
1044                         return get_initializer_null();
1045
1046                 case IR_INITIALIZER_COMPOUND:
1047                 {
1048                         unsigned i, n = (unsigned) read_long(env);
1049                         ir_initializer_t *ini = create_initializer_compound(n);
1050                         for (i = 0; i < n; i++) {
1051                                 ir_initializer_t *curini = read_initializer(env);
1052                                 set_initializer_compound_value(ini, i, curini);
1053                         }
1054                         return ini;
1055                 }
1056
1057                 default:
1058                         panic("Unknown initializer kind");
1059         }
1060 }
1061
1062
1063 /** Reads a type description and remembers it by its id. */
1064 static void import_type(io_env_t *env, keyword_t kwkind)
1065 {
1066         int            i;
1067         ir_type       *type;
1068         long           typenr = read_long(env);
1069         const char    *tpop   = read_str(env);
1070         const char    *name   = read_qstr(env);
1071         unsigned       size   = (unsigned) read_long(env);
1072         unsigned       align  = (unsigned) read_long(env);
1073         ir_type_state  state  = read_type_state(env);
1074         ir_visibility  vis    = read_visibility(env);
1075
1076         ident         *id     = new_id_from_str(name);
1077
1078         const char    *kindstr;
1079
1080         if (kwkind == kw_frametype) {
1081                 if (symbol(tpop, tt_tpo) != tpo_class) {
1082                         printf("Frame type must be a class type in line %i:%i\n", env->line, env->col);
1083                         skip_to(env, '\n');
1084                         return;
1085                 }
1086
1087                 type = new_type_frame(id);
1088                 set_type_size_bytes(type, size);
1089
1090                 kindstr = "frametype";
1091         } else if (kwkind == kw_valuetype) {
1092                 if (symbol(tpop, tt_tpo) != tpo_struct) {
1093                         printf("Value type must be a struct type in line %i:%i\n", env->line, env->col);
1094                         skip_to(env, '\n');
1095                         return;
1096                 }
1097
1098                 type = new_type_value(id);
1099                 set_type_size_bytes(type, size);
1100
1101                 kindstr = "valuetype";
1102         } else {
1103                 switch (symbol(tpop, tt_tpo))
1104                 {
1105                         case tpo_array:
1106                         {
1107                                 int ndims = (int) read_long(env);
1108                                 long elemtypenr = read_long(env);
1109                                 ir_type *elemtype = get_type(env, elemtypenr);
1110
1111                                 type = new_type_array(id, ndims, elemtype);
1112                                 for (i = 0; i < ndims; i++) {
1113                                         const char *str = read_str(env);
1114                                         if (strcmp(str, "unknown") != 0) {
1115                                                 long lowerbound = strtol(str, NULL, 0);
1116                                                 set_array_lower_bound_int(type, i, lowerbound);
1117                                         }
1118                                         str = read_str(env);
1119                                         if (strcmp(str, "unknown") != 0) {
1120                                                 long upperbound = strtol(str, NULL, 0);
1121                                                 set_array_upper_bound_int(type, i, upperbound);
1122                                         }
1123                                 }
1124                                 set_type_size_bytes(type, size);
1125                                 break;
1126                         }
1127
1128                         case tpo_class:
1129                                 if(typenr == (long) IR_SEGMENT_GLOBAL)
1130                                         type = get_glob_type();
1131                                 else
1132                                         type = new_type_class(id);
1133                                 set_type_size_bytes(type, size);
1134                                 break;
1135
1136                         case tpo_method:
1137                         {
1138                                 unsigned callingconv = (unsigned) read_long(env);
1139                                 unsigned addprops    = (unsigned) read_long(env);
1140                                 int nparams          = (int)      read_long(env);
1141                                 int nresults         = (int)      read_long(env);
1142                                 int variaindex;
1143
1144                                 type = new_type_method(id, nparams, nresults);
1145
1146                                 for (i = 0; i < nparams; i++) {
1147                                         long     typenr = read_long(env);
1148                                         ir_type *paramtype = get_type(env, typenr);
1149
1150                                         set_method_param_type(type, i, paramtype);
1151                                 }
1152                                 for (i = 0; i < nresults; i++) {
1153                                         long typenr = read_long(env);
1154                                         ir_type *restype = get_type(env, typenr);
1155
1156                                         set_method_res_type(type, i, restype);
1157                                 }
1158
1159                                 variaindex = (int) read_long(env);
1160                                 if (variaindex != -1) {
1161                                         set_method_variadicity(type, variadicity_variadic);
1162                                         if (variaindex != nparams)
1163                                                 set_method_first_variadic_param_index(type, variaindex);
1164                                 }
1165
1166                                 set_method_calling_convention(type, callingconv);
1167                                 set_method_additional_properties(type, addprops);
1168                                 break;
1169                         }
1170
1171                         case tpo_pointer:
1172                         {
1173                                 ir_mode *mode = read_mode(env);
1174                                 ir_type *pointsto = get_type(env, read_long(env));
1175                                 type = new_type_pointer(id, pointsto, mode);
1176                                 break;
1177                         }
1178
1179                         case tpo_primitive:
1180                         {
1181                                 ir_mode *mode = read_mode(env);
1182                                 type = new_type_primitive(id, mode);
1183                                 break;
1184                         }
1185
1186                         case tpo_struct:
1187                                 if(typenr < (long) IR_SEGMENT_COUNT)
1188                                         type = get_segment_type((ir_segment_t) typenr);
1189                                 else
1190                                         type = new_type_struct(id);
1191                                 set_type_size_bytes(type, size);
1192                                 break;
1193
1194                         case tpo_union:
1195                                 type = new_type_union(id);
1196                                 set_type_size_bytes(type, size);
1197                                 break;
1198
1199                         case tpo_unknown:
1200                                 return;   /* ignore unknown type */
1201
1202                         default:
1203                                 if (typenr != 0)  /* ignore global type */
1204                                         printf("Unknown type kind: \"%s\" in line %i:%i\n", tpop, env->line, env->col);
1205                                 skip_to(env, '\n');
1206                                 return;
1207                 }
1208                 kindstr = "type";
1209         }
1210
1211         set_type_alignment_bytes(type, align);
1212         set_type_visibility(type, vis);
1213
1214         if (state == layout_fixed)
1215                 ARR_APP1(ir_type *, env->fixedtypes, type);
1216
1217         set_id(env, typenr, type);
1218         printf("Insert %s %s %ld\n", kindstr, name, typenr);
1219 }
1220
1221 /** Reads an entity description and remembers it by its id. */
1222 static void import_entity(io_env_t *env)
1223 {
1224         char          buf[1024], buf2[1024];
1225         long          entnr       = read_long(env);
1226         const char   *name        = read_qstr_to(env, buf, sizeof(buf));
1227         const char   *ld_name     = read_qstr_to(env, buf2, sizeof(buf2));
1228         long          typenr      = read_long(env);
1229         long          ownertypenr = read_long(env);
1230
1231         ir_type   *type      = get_type(env, typenr);
1232         ir_type   *ownertype = !ownertypenr ? get_glob_type() : get_type(env, ownertypenr);
1233         ir_entity *entity    = new_entity(ownertype, new_id_from_str(name), type);
1234
1235         if (*ld_name)
1236                 set_entity_ld_ident(entity, new_id_from_str(ld_name));
1237         set_entity_offset     (entity, (int) read_long(env));
1238         set_entity_offset_bits_remainder(entity, (unsigned char) read_long(env));
1239         set_entity_compiler_generated(entity, (int) read_long(env));
1240         set_entity_allocation (entity, read_allocation(env));
1241         set_entity_visibility (entity, read_visibility(env));
1242         set_entity_variability(entity, read_variability(env));
1243         set_entity_peculiarity(entity, read_peculiarity(env));
1244         set_entity_volatility (entity, read_volatility(env));
1245
1246         if (get_entity_variability(entity) != variability_uninitialized &&
1247             get_entity_visibility(entity) != visibility_external_allocated)
1248         {
1249                 if (is_compound_entity(entity)) {
1250                         if (!strcmp(read_str_to(env, buf2, sizeof(buf2)), "initializer")) {
1251                                 set_entity_initializer(entity, read_initializer(env));
1252                         } else {
1253                                 int i, n = (int) read_long(env);
1254                                 for (i = 0; i < n; i++) {
1255                                         ir_entity *member = get_entity(env, read_long(env));
1256                                         ir_node   *irn    = get_node_or_dummy(env, read_long(env));
1257                                         add_compound_ent_value(entity, irn, member);
1258                                 }
1259                         }
1260                 } else {
1261                         ir_node *irn = get_node_or_dummy(env, read_long(env));
1262                         set_atomic_ent_value(entity, irn);
1263                 }
1264         }
1265
1266         set_id(env, entnr, entity);
1267         printf("Insert entity %s %ld\n", name, entnr);
1268 }
1269
1270 /** Parses the whole type graph. */
1271 static int parse_typegraph(io_env_t *env)
1272 {
1273         const char *kind;
1274         keyword_t kwkind;
1275         lex_state_t oldstate;
1276
1277         EXPECT('{');
1278
1279         save_lex_state(env, &oldstate);
1280
1281         current_ir_graph = get_const_code_irg();
1282
1283         /* parse all types first */
1284         while (1) {
1285                 kind = read_str(env);
1286                 if (kind[0] == '}' && kind[1] == '\0')
1287                         break;
1288
1289                 kwkind = (keyword_t) symbol(kind, tt_keyword);
1290                 switch (kwkind)
1291                 {
1292                         case kw_type:
1293                         case kw_frametype:
1294                         case kw_valuetype:
1295                                 import_type(env, kwkind);
1296                                 break;
1297
1298                         default:
1299                                 skip_to(env, '\n');
1300                                 break;
1301                 }
1302         }
1303
1304         /* now parse rest */
1305         restore_lex_state(env, &oldstate);
1306
1307         while (1) {
1308                 kind = read_str(env);
1309                 if (kind[0] == '}' && kind[1] == '\0')
1310                         break;
1311
1312                 switch (symbol(kind, tt_keyword))
1313                 {
1314                         case kw_type:
1315                         case kw_frametype:
1316                         case kw_valuetype:
1317                                 skip_to(env, '\n');
1318                                 break;
1319
1320                         case kw_entity:
1321                                 import_entity(env);
1322                                 break;
1323
1324                         default:
1325                                 printf("Type graph element not supported yet: \"%s\"\n", kind);
1326                                 skip_to(env, '\n');
1327                                 break;
1328                 }
1329         }
1330         return 1;
1331 }
1332
1333 static int read_node_header(io_env_t *env, long *nodenr, long **preds, const char **nodename)
1334 {
1335         int numpreds;
1336         *nodename = read_str(env);
1337         if ((*nodename)[0] == '}' && !(*nodename)[1]) return -1;  /* end-of-graph */
1338
1339         *nodenr = read_long(env);
1340
1341         ARR_RESIZE(ir_node *, *preds, 0);
1342
1343         EXPECT('[');
1344         for (numpreds = 0; !feof(env->file); numpreds++) {
1345                 char *endptr;
1346                 ARR_APP1(long, *preds, read_long2(env, &endptr));
1347                 if (*endptr == ']') break;
1348         }
1349         return numpreds;
1350 }
1351
1352 /** Parses an IRG. */
1353 static int parse_graph(io_env_t *env, ir_graph *irg)
1354 {
1355         long       *preds = NEW_ARR_F(long, 16);
1356         ir_node   **prednodes = NEW_ARR_F(ir_node *, 16);
1357         int         i, numpreds, ret = 1;
1358         long        nodenr;
1359         const char *nodename;
1360         ir_node    *node, *newnode;
1361
1362         current_ir_graph = irg;
1363
1364         EXPECT('{');
1365
1366         while (1) {
1367                 numpreds = read_node_header(env, &nodenr, &preds, &nodename);
1368                 if (numpreds == -1) break;  /* end-of-graph */
1369                 if (!numpreds) {
1370                         printf("Node %s %ld is missing predecessors!", nodename, nodenr);
1371                         ret = 0;
1372                         break;
1373                 }
1374
1375                 ARR_RESIZE(ir_node *, prednodes, numpreds);
1376                 for (i = 0; i < numpreds - 1; i++)
1377                         prednodes[i] = get_node_or_dummy(env, preds[i + 1]);
1378
1379                 node = get_node_or_null(env, nodenr);
1380                 newnode = NULL;
1381
1382                 EXPECT('{');
1383
1384                 switch (symbol(nodename, tt_iro))
1385                 {
1386                         case iro_End:
1387                         {
1388                                 ir_node *newendblock = get_node(env, preds[0]);
1389                                 newnode = get_irg_end(current_ir_graph);
1390                                 exchange(get_nodes_block(newnode), newendblock);
1391                                 for (i = 0; i < numpreds - 1; i++)
1392                                         add_irn_n(newnode, prednodes[i]);
1393                                 break;
1394                         }
1395
1396                         case iro_Start:
1397                         {
1398                                 ir_node *newstartblock = get_node(env, preds[0]);
1399                                 newnode = get_irg_start(current_ir_graph);
1400                                 exchange(get_nodes_block(newnode), newstartblock);
1401                                 break;
1402                         }
1403
1404                         case iro_Block:
1405                         {
1406                                 if (preds[0] != nodenr) {
1407                                         printf("Invalid block: preds[0] != nodenr (%ld != %ld)\n",
1408                                                 preds[0], nodenr);
1409                                         ret = 0;
1410                                         goto endloop;
1411                                 }
1412
1413                                 newnode = new_Block(numpreds - 1, prednodes);
1414                                 break;
1415                         }
1416
1417                         case iro_Anchor:
1418                                 newnode = current_ir_graph->anchor;
1419                                 for (i = 0; i < numpreds - 1; i++)
1420                                         set_irn_n(newnode, i, prednodes[i]);
1421                                 set_irn_n(newnode, -1, get_node(env, preds[0]));
1422                                 break;
1423
1424                         case iro_SymConst:
1425                         {
1426                                 long entnr = read_long(env);
1427                                 union symconst_symbol sym;
1428                                 sym.entity_p = get_entity(env, entnr);
1429                                 newnode = new_SymConst(mode_P, sym, symconst_addr_ent);
1430                                 break;
1431                         }
1432
1433                         #include "gen_irio_import.inl"
1434
1435                         default:
1436                                 goto notsupported;
1437                 }
1438
1439                 EXPECT('}');
1440
1441                 if (!newnode) {
1442 notsupported:
1443                         panic("Node type not supported yet: %s in line %i:%i\n", nodename, env->line, env->col);
1444                 }
1445
1446                 if (node)
1447                         exchange(node, newnode);
1448                 /* Always update hash entry to avoid more uses of id nodes */
1449                 set_id(env, nodenr, newnode);
1450                 /* printf("Insert %s %ld\n", nodename, nodenr); */
1451         }
1452
1453 endloop:
1454         DEL_ARR_F(preds);
1455         DEL_ARR_F(prednodes);
1456
1457         return ret;
1458 }
1459
1460 static int parse_modes(io_env_t *env)
1461 {
1462         const char *kind;
1463         keyword_t kwkind;
1464
1465         EXPECT('{');
1466
1467         while (1) {
1468                 kind = read_str(env);
1469                 if (kind[0] == '}' && kind[1] == '\0')
1470                         break;
1471
1472                 kwkind = (keyword_t) symbol(kind, tt_keyword);
1473                 switch (kwkind)
1474                 {
1475                         case kw_mode:
1476                         {
1477                                 const char *name = read_qstr(env);
1478                                 ir_mode_sort sort = (ir_mode_sort) read_long(env);
1479                                 int size = read_long(env);
1480                                 int sign = read_long(env);
1481                                 ir_mode_arithmetic arith = read_mode_arithmetic(env);
1482                                 unsigned modulo_shift = read_long(env);
1483                                 int vector_elems = read_long(env);
1484
1485                                 ir_mode *mode = new_ir_mode(name, sort, size, sign, arith, modulo_shift);
1486
1487                                 if (mode_is_reference(mode))
1488                                 {
1489                                         set_reference_mode_signed_eq(mode, read_mode(env));
1490                                         set_reference_mode_unsigned_eq(mode, read_mode(env));
1491                                 }
1492                                 break;
1493                         }
1494
1495                         default:
1496                                 skip_to(env, '\n');
1497                                 break;
1498                 }
1499         }
1500         return 1;
1501 }
1502
1503 /** Imports an previously exported textual representation of an (maybe partial) irp */
1504 void ir_import(const char *filename)
1505 {
1506         int oldoptimize = get_optimize();
1507         firm_verification_t oldver = get_node_verification_mode();
1508         io_env_t ioenv;
1509         io_env_t *env = &ioenv;
1510         int i, n;
1511
1512         symtbl_init();
1513
1514         memset(env, 0, sizeof(*env));
1515         env->idset = new_set(id_cmp, 128);
1516         env->fixedtypes = NEW_ARR_F(ir_type *, 0);
1517
1518         env->file = fopen(filename, "rt");
1519         if (!env->file) {
1520                 perror(filename);
1521                 exit(1);
1522         }
1523
1524         set_optimize(0);
1525         do_node_verification(FIRM_VERIFICATION_OFF);
1526
1527         while (1) {
1528                 const char *str = read_str(env);
1529                 if (!*str) break;
1530                 switch (symbol(str, tt_keyword))
1531                 {
1532                         case kw_modes:
1533                                 if (!parse_modes(env)) goto end;
1534                                 break;
1535
1536                         case kw_typegraph:
1537                                 if (!parse_typegraph(env)) goto end;
1538                                 break;
1539
1540                         case kw_irg:
1541                         {
1542                                 ir_entity *irgent = get_entity(env, read_long(env));
1543                                 long valuetypeid;
1544                                 ir_graph *irg = new_ir_graph(irgent, 0);
1545                                 set_irg_frame_type(irg, get_type(env, read_long(env)));
1546                                 valuetypeid = read_long(env);
1547                                 if (valuetypeid != -1)
1548                                         set_method_value_param_type(get_entity_type(irgent),
1549                                                         get_type(env, valuetypeid));
1550
1551                                 if (!parse_graph(env, irg)) goto end;
1552                                 break;
1553                         }
1554
1555                         case kw_constirg:
1556                         {
1557                                 ir_graph *constirg = get_const_code_irg();
1558                                 long bodyblockid = read_long(env);
1559                                 set_id(env, bodyblockid, constirg->current_block);
1560                                 if (!parse_graph(env, constirg)) goto end;
1561                                 break;
1562                         }
1563                 }
1564         }
1565
1566 end:
1567         n = ARR_LEN(env->fixedtypes);
1568         for (i = 0; i < n; i++)
1569                 set_type_state(env->fixedtypes[i], layout_fixed);
1570
1571         DEL_ARR_F(env->fixedtypes);
1572
1573         del_set(env->idset);
1574
1575         irp_finalize_cons();
1576
1577         do_node_verification(oldver);
1578         set_optimize(oldoptimize);
1579
1580         fclose(env->file);
1581 }