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

   1 /*
   2  * Copyright (C) 1995-2011 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 #include <ctype.h>
  30 #include <stdbool.h>
  31 #include <stdarg.h>
  32
  33 #include "irio.h"
  34
  35 #include "irnode_t.h"
  36 #include "irprog.h"
  37 #include "irgraph_t.h"
  38 #include "irprintf.h"
  39 #include "ircons.h"
  40 #include "irgmod.h"
  41 #include "irflag_t.h"
  42 #include "irgwalk.h"
  43 #include "tv.h"
  44 #include "array.h"
  45 #include "error.h"
  46 #include "typerep.h"
  47 #include "adt/set.h"
  48 #include "adt/obst.h"
  49
  50 #define SYMERROR ((unsigned) ~0)
  51
  52 typedef struct io_env_t
  53 {
  54         int c;                /**< currently read char */
  55         FILE *file;
  56         set *idset;           /**< id_entry set, which maps from file ids to new Firm elements */
  57         int ignoreblocks;
  58         const char *inputname;
  59         int line;
  60         ir_type **fixedtypes;
  61         struct obstack obst;
  62         ir_graph *irg;
  63 } io_env_t;
  64
  65 typedef enum typetag_t
  66 {
  67         tt_align,
  68         tt_allocation,
  69         tt_builtin,
  70         tt_cond_jmp_predicate,
  71         tt_initializer,
  72         tt_iro,
  73         tt_keyword,
  74         tt_mode_sort,
  75         tt_mode_arithmetic,
  76         tt_pin_state,
  77         tt_tpo,
  78         tt_type_state,
  79         tt_volatility,
  80         tt_linkage,
  81         tt_segment,
  82         tt_visibility
  83 } typetag_t;
  84
  85 typedef enum keyword_t
  86 {
  87         kw_constirg,
  88         kw_entity,
  89         kw_irg,
  90         kw_mode,
  91         kw_modes,
  92         kw_type,
  93         kw_typegraph,
  94         kw_program,
  95         kw_segment_type
  96 } keyword_t;
  97
  98 typedef struct symbol_t
  99 {
 100         const char *str;      /**< The name of this symbol. */
 101         typetag_t   typetag;  /**< The type tag of this symbol. */
 102         unsigned    code;     /**< The value of this symbol. */
 103 } symbol_t;
 104
 105 typedef struct id_entry
 106 {
 107         long id;
 108         void *elem;
 109 } id_entry;
 110
 111 /** The symbol table, a set of symbol_t elements. */
 112 static set *symtbl;
 113
 114 /**
 115  * Compare two symbol table entries.
 116  */
 117 static int symbol_cmp(const void *elt, const void *key, size_t size)
 118 {
 119         int res;
 120         const symbol_t *entry = (const symbol_t *) elt;
 121         const symbol_t *keyentry = (const symbol_t *) key;
 122         (void) size;
 123         res = entry->typetag - keyentry->typetag;
 124         if (res) return res;
 125         return strcmp(entry->str, keyentry->str);
 126 }
 127
 128 static int id_cmp(const void *elt, const void *key, size_t size)
 129 {
 130         const id_entry *entry = (const id_entry *) elt;
 131         const id_entry *keyentry = (const id_entry *) key;
 132         (void) size;
 133         return entry->id - keyentry->id;
 134 }
 135
 136 static void __attribute__((format(printf, 2, 3)))
 137 parse_error(io_env_t *env, const char *fmt, ...)
 138 {
 139         va_list ap;
 140         int     line = env->line;
 141
 142         /* workaround read_c "feature" that a '\n' triggers the line++
 143          * instead of the character after the '\n' */
 144         if (env->c == '\n') {
 145                 line--;
 146         }
 147
 148         fprintf(stderr, "%s:%d: error ", env->inputname, line);
 149
 150         va_start(ap, fmt);
 151         vfprintf(stderr, fmt, ap);
 152         va_end(ap);
 153 }
 154
 155 /** Initializes the symbol table. May be called more than once without problems. */
 156 static void symtbl_init(void)
 157 {
 158         symbol_t key;
 159
 160         /* Only initialize once */
 161         if (symtbl != NULL)
 162                 return;
 163
 164         symtbl = new_set(symbol_cmp, 256);
 165
 166 #define INSERT(tt, s, cod)                                       \
 167         key.str = (s);                                               \
 168         key.typetag = (tt);                                          \
 169         key.code = (cod);                                            \
 170         set_insert(symtbl, &key, sizeof(key), firm_fnv_hash_str(s) + tt * 17)
 171
 172 #define INSERTENUM(tt, e) INSERT(tt, #e, e)
 173 #define INSERTKEYWORD(k) INSERT(tt_keyword, #k, kw_##k)
 174
 175         INSERT(tt_tpo, "array", tpo_array);
 176         INSERT(tt_tpo, "class", tpo_class);
 177         INSERT(tt_tpo, "method", tpo_method);
 178         INSERT(tt_tpo, "pointer", tpo_pointer);
 179         INSERT(tt_tpo, "primitive", tpo_primitive);
 180         INSERT(tt_tpo, "struct", tpo_struct);
 181         INSERT(tt_tpo, "union", tpo_union);
 182         INSERT(tt_tpo, "Unknown", tpo_unknown);
 183
 184         INSERT(tt_mode_sort, "auxiliary", irms_auxiliary);
 185         INSERT(tt_mode_sort, "control_flow", irms_control_flow);
 186         INSERT(tt_mode_sort, "memory", irms_memory);
 187         INSERT(tt_mode_sort, "internal_boolean", irms_internal_boolean);
 188         INSERT(tt_mode_sort, "reference", irms_reference);
 189         INSERT(tt_mode_sort, "int_number", irms_int_number);
 190         INSERT(tt_mode_sort, "float_number", irms_float_number);
 191
 192         INSERT(tt_segment, "global", IR_SEGMENT_GLOBAL);
 193         INSERT(tt_segment, "thread_local", IR_SEGMENT_THREAD_LOCAL);
 194         INSERT(tt_segment, "constructors", IR_SEGMENT_CONSTRUCTORS);
 195         INSERT(tt_segment, "destructors", IR_SEGMENT_DESTRUCTORS);
 196
 197         INSERT(tt_linkage, "constant", IR_LINKAGE_CONSTANT);
 198         INSERT(tt_linkage, "weak", IR_LINKAGE_WEAK);
 199         INSERT(tt_linkage, "garbage_collect", IR_LINKAGE_GARBAGE_COLLECT);
 200         INSERT(tt_linkage, "merge", IR_LINKAGE_MERGE);
 201         INSERT(tt_linkage, "hidden_user", IR_LINKAGE_HIDDEN_USER);
 202
 203         INSERT(tt_visibility, "local", ir_visibility_local);
 204         INSERT(tt_visibility, "external", ir_visibility_external);
 205         INSERT(tt_visibility, "default", ir_visibility_default);
 206         INSERT(tt_visibility, "private", ir_visibility_private);
 207
 208         INSERTKEYWORD(constirg);
 209         INSERTKEYWORD(entity);
 210         INSERTKEYWORD(irg);
 211         INSERTKEYWORD(mode);
 212         INSERTKEYWORD(modes);
 213         INSERTKEYWORD(type);
 214         INSERTKEYWORD(typegraph);
 215         INSERTKEYWORD(program);
 216         INSERTKEYWORD(segment_type);
 217
 218 #include "gen_irio_lex.inl"
 219
 220         INSERTENUM(tt_align, align_non_aligned);
 221         INSERTENUM(tt_align, align_is_aligned);
 222
 223         INSERTENUM(tt_builtin, ir_bk_trap);
 224         INSERTENUM(tt_builtin, ir_bk_debugbreak);
 225         INSERTENUM(tt_builtin, ir_bk_return_address);
 226         INSERTENUM(tt_builtin, ir_bk_frame_address);
 227         INSERTENUM(tt_builtin, ir_bk_prefetch);
 228         INSERTENUM(tt_builtin, ir_bk_ffs);
 229         INSERTENUM(tt_builtin, ir_bk_clz);
 230         INSERTENUM(tt_builtin, ir_bk_ctz);
 231         INSERTENUM(tt_builtin, ir_bk_popcount);
 232         INSERTENUM(tt_builtin, ir_bk_parity);
 233         INSERTENUM(tt_builtin, ir_bk_bswap);
 234         INSERTENUM(tt_builtin, ir_bk_inport);
 235         INSERTENUM(tt_builtin, ir_bk_outport);
 236         INSERTENUM(tt_builtin, ir_bk_inner_trampoline);
 237
 238         INSERTENUM(tt_cond_jmp_predicate, COND_JMP_PRED_NONE);
 239         INSERTENUM(tt_cond_jmp_predicate, COND_JMP_PRED_TRUE);
 240         INSERTENUM(tt_cond_jmp_predicate, COND_JMP_PRED_FALSE);
 241
 242         INSERTENUM(tt_initializer, IR_INITIALIZER_CONST);
 243         INSERTENUM(tt_initializer, IR_INITIALIZER_TARVAL);
 244         INSERTENUM(tt_initializer, IR_INITIALIZER_NULL);
 245         INSERTENUM(tt_initializer, IR_INITIALIZER_COMPOUND);
 246
 247         INSERTENUM(tt_mode_arithmetic, irma_uninitialized);
 248         INSERTENUM(tt_mode_arithmetic, irma_none);
 249         INSERTENUM(tt_mode_arithmetic, irma_twos_complement);
 250         INSERTENUM(tt_mode_arithmetic, irma_ieee754);
 251
 252         INSERTENUM(tt_pin_state, op_pin_state_floats);
 253         INSERTENUM(tt_pin_state, op_pin_state_pinned);
 254         INSERTENUM(tt_pin_state, op_pin_state_exc_pinned);
 255         INSERTENUM(tt_pin_state, op_pin_state_mem_pinned);
 256
 257         INSERTENUM(tt_type_state, layout_undefined);
 258         INSERTENUM(tt_type_state, layout_fixed);
 259
 260         INSERTENUM(tt_volatility, volatility_non_volatile);
 261         INSERTENUM(tt_volatility, volatility_is_volatile);
 262
 263 #undef INSERTKEYWORD
 264 #undef INSERTENUM
 265 #undef INSERT
 266 }
 267
 268 static const char *get_segment_name(ir_segment_t segment)
 269 {
 270         switch (segment) {
 271         case IR_SEGMENT_GLOBAL:       return "global";
 272         case IR_SEGMENT_THREAD_LOCAL: return "thread_local";
 273         case IR_SEGMENT_CONSTRUCTORS: return "constructors";
 274         case IR_SEGMENT_DESTRUCTORS:  return "destructors";
 275         }
 276         return "INVALID_SEGMENT";
 277 }
 278
 279 static const char *get_visibility_name(ir_visibility visibility)
 280 {
 281         switch (visibility) {
 282         case ir_visibility_local:    return "local";
 283         case ir_visibility_external: return "external";
 284         case ir_visibility_default:  return "default";
 285         case ir_visibility_private:  return "private";
 286         }
 287         return "INVALID_VISIBILITY";
 288 }
 289
 290 /** Returns the according symbol value for the given string and tag, or SYMERROR if none was found. */
 291 static unsigned symbol(const char *str, typetag_t typetag)
 292 {
 293         symbol_t key, *entry;
 294
 295         key.str = str;
 296         key.typetag = typetag;
 297
 298         entry = (symbol_t*)set_find(symtbl, &key, sizeof(key), firm_fnv_hash_str(str) + typetag * 17);
 299         return entry ? entry->code : SYMERROR;
 300 }
 301
 302 static void *get_id(io_env_t *env, long id)
 303 {
 304         id_entry key, *entry;
 305         key.id = id;
 306
 307         entry = (id_entry*)set_find(env->idset, &key, sizeof(key), (unsigned) id);
 308         return entry ? entry->elem : NULL;
 309 }
 310
 311 static void set_id(io_env_t *env, long id, void *elem)
 312 {
 313         id_entry key;
 314         key.id = id;
 315         key.elem = elem;
 316         set_insert(env->idset, &key, sizeof(key), (unsigned) id);
 317 }
 318
 319 static void write_long(io_env_t *env, long value)
 320 {
 321         fprintf(env->file, "%ld ", value);
 322 }
 323
 324 static void write_int(io_env_t *env, int value)
 325 {
 326         fprintf(env->file, "%d ", value);
 327 }
 328
 329 static void write_unsigned(io_env_t *env, unsigned value)
 330 {
 331         fprintf(env->file, "%u ", value);
 332 }
 333
 334 static void write_entity_ref(io_env_t *env, ir_entity *entity)
 335 {
 336         write_long(env, get_entity_nr(entity));
 337 }
 338
 339 static void write_type_ref(io_env_t *env, ir_type *type)
 340 {
 341         write_long(env, get_type_nr(type));
 342 }
 343
 344 static void write_string(io_env_t *env, const char *string)
 345 {
 346         const char *c;
 347         fputc('"', env->file);
 348         for (c = string; *c != '\0'; ++c) {
 349                 switch (*c) {
 350                 case '\n':
 351                         fputc('\\', env->file);
 352                         fputc('n', env->file);
 353                         break;
 354                 case '"':
 355                 case '\\':
 356                         fputc('\\', env->file);
 357                         /* FALLTHROUGH */
 358                 default:
 359                         fputc(*c, env->file);
 360                         break;
 361                 }
 362         }
 363         fputc('"', env->file);
 364 }
 365
 366 static void write_ident(io_env_t *env, ident *id)
 367 {
 368         write_string(env, get_id_str(id));
 369         fputc(' ', env->file);
 370 }
 371
 372 static void write_ident_null(io_env_t *env, ident *id)
 373 {
 374         if (id == NULL) {
 375                 fputs("NULL ", env->file);
 376         } else {
 377                 write_ident(env, id);
 378         }
 379 }
 380
 381 static void write_mode(io_env_t *env, ir_mode *mode)
 382 {
 383         write_string(env, get_mode_name(mode));
 384         fputc(' ', env->file);
 385 }
 386
 387 static void write_tarval(io_env_t *env, ir_tarval *tv)
 388 {
 389         char buf[1024];
 390         write_mode(env, get_tarval_mode(tv));
 391         tarval_snprintf(buf, sizeof(buf), tv);
 392         fputs(buf, env->file);
 393         fputc(' ', env->file);
 394 }
 395
 396 static void write_align(io_env_t *env, ir_align align)
 397 {
 398         fputs(get_align_name(align), env->file);
 399         fputc(' ', env->file);
 400 }
 401
 402 static void write_builtin_kind(io_env_t *env, ir_node *irn)
 403 {
 404         fputs(get_builtin_kind_name(get_Builtin_kind(irn)), env->file);
 405         fputc(' ', env->file);
 406 }
 407
 408 static void write_cond_jmp_predicate(io_env_t *env, ir_node *irn)
 409 {
 410         fputs(get_cond_jmp_predicate_name(get_Cond_jmp_pred(irn)), env->file);
 411         fputc(' ', env->file);
 412 }
 413
 414 static void write_list_begin(io_env_t *env)
 415 {
 416         fputs("[", env->file);
 417 }
 418
 419 static void write_list_end(io_env_t *env)
 420 {
 421         fputs("] ", env->file);
 422 }
 423
 424 static void write_initializer(io_env_t *env, ir_initializer_t *ini)
 425 {
 426         FILE *f = env->file;
 427         ir_initializer_kind_t ini_kind = get_initializer_kind(ini);
 428
 429         fputs(get_initializer_kind_name(ini_kind), f);
 430         fputc(' ', f);
 431
 432         switch (ini_kind) {
 433         case IR_INITIALIZER_CONST:
 434                 write_long(env, get_irn_node_nr(get_initializer_const_value(ini)));
 435                 break;
 436
 437         case IR_INITIALIZER_TARVAL:
 438                 write_tarval(env, get_initializer_tarval_value(ini));
 439                 break;
 440
 441         case IR_INITIALIZER_NULL:
 442                 break;
 443
 444         case IR_INITIALIZER_COMPOUND: {
 445                 size_t i, n = get_initializer_compound_n_entries(ini);
 446                 ir_fprintf(f, "%zu ", n);
 447                 for (i = 0; i < n; ++i)
 448                         write_initializer(env, get_initializer_compound_value(ini, i));
 449                 break;
 450         }
 451
 452         default:
 453                 panic("Unknown initializer kind");
 454         }
 455 }
 456
 457 static void write_pin_state(io_env_t *env, ir_node *irn)
 458 {
 459         fputs(get_op_pin_state_name(get_irn_pinned(irn)), env->file);
 460         fputc(' ', env->file);
 461 }
 462
 463 static void write_volatility(io_env_t *env, ir_volatility vol)
 464 {
 465         fputs(get_volatility_name(vol), env->file);
 466         fputc(' ', env->file);
 467 }
 468
 469 static void export_type_common(io_env_t *env, ir_type *tp)
 470 {
 471         fprintf(env->file, "\ttype %ld %s %u %u %s %u ",
 472                 get_type_nr(tp),
 473                 get_type_tpop_name(tp),
 474                 get_type_size_bytes(tp),
 475                 get_type_alignment_bytes(tp),
 476                 get_type_state_name(get_type_state(tp)),
 477                 tp->flags);
 478 }
 479
 480 static void export_type_pre(io_env_t *env, ir_type *tp)
 481 {
 482         FILE *f = env->file;
 483
 484         /* skip types to be handled by post walker */
 485         switch (get_type_tpop_code(tp)) {
 486         case tpo_array:
 487         case tpo_method:
 488         case tpo_pointer:
 489                 return;
 490         default:
 491                 break;
 492         }
 493
 494         export_type_common(env, tp);
 495
 496         switch (get_type_tpop_code(tp)) {
 497         case tpo_uninitialized:
 498                 panic("invalid type found");
 499
 500         case tpo_class:
 501                 write_ident_null(env, get_compound_ident(tp));
 502                 break;
 503
 504         case tpo_primitive:
 505                 write_mode(env, get_type_mode(tp));
 506                 break;
 507
 508         case tpo_union:
 509         case tpo_struct:
 510         case tpo_enumeration:
 511                 write_ident_null(env, get_compound_ident(tp));
 512                 break;
 513
 514         case tpo_array:
 515         case tpo_method:
 516         case tpo_pointer:
 517         case tpo_code:
 518         case tpo_none:
 519         case tpo_unknown:
 520                 break;
 521         }
 522         fputc('\n', f);
 523 }
 524
 525 static void export_type_post(io_env_t *env, ir_type *tp)
 526 {
 527         FILE *f = env->file;
 528         size_t i;
 529
 530         /* skip types already handled by pre walker */
 531         switch (get_type_tpop_code(tp)) {
 532         case tpo_class:
 533         case tpo_primitive:
 534         case tpo_struct:
 535         case tpo_union:
 536         case tpo_unknown:
 537         case tpo_uninitialized:
 538         case tpo_code:
 539         case tpo_none:
 540                 return;
 541         case tpo_array:
 542         case tpo_method:
 543         case tpo_pointer:
 544         case tpo_enumeration:
 545                 break;
 546         }
 547
 548         export_type_common(env, tp);
 549
 550         switch (get_type_tpop_code(tp)) {
 551         case tpo_array: {
 552                 size_t n = get_array_n_dimensions(tp);
 553                 ir_fprintf(f, "%zu %ld ", n, get_type_nr(get_array_element_type(tp)));
 554                 for (i = 0; i < n; i++) {
 555                         ir_node *lower = get_array_lower_bound(tp, i);
 556                         ir_node *upper = get_array_upper_bound(tp, i);
 557
 558                         if (is_Const(lower))
 559                                 write_long(env, get_tarval_long(get_Const_tarval(lower)));
 560                         else
 561                                 panic("Lower array bound is not constant");
 562
 563                         if (is_Const(upper))
 564                                 write_long(env, get_tarval_long(get_Const_tarval(upper)));
 565                         else if (is_Unknown(upper))
 566                                 fputs("unknown ", f);
 567                         else
 568                                 panic("Upper array bound is not constant");
 569                 }
 570                 break;
 571         }
 572
 573         case tpo_method: {
 574                 size_t nparams  = get_method_n_params(tp);
 575                 size_t nresults = get_method_n_ress(tp);
 576                 ir_fprintf(f, "%u %u %zu %zu ", get_method_calling_convention(tp),
 577                         get_method_additional_properties(tp), nparams, nresults);
 578                 for (i = 0; i < nparams; i++)
 579                         write_long(env, get_type_nr(get_method_param_type(tp, i)));
 580                 for (i = 0; i < nresults; i++)
 581                         write_long(env, get_type_nr(get_method_res_type(tp, i)));
 582                 ir_fprintf(f, "%u ", get_method_variadicity(tp));
 583                 break;
 584         }
 585
 586         case tpo_pointer:
 587                 write_mode(env, get_type_mode(tp));
 588                 write_long(env, get_type_nr(get_pointer_points_to_type(tp)));
 589                 break;
 590
 591         case tpo_enumeration:
 592                 fprintf(stderr, "Enumeration type not handled yet by exporter\n");
 593                 break;
 594
 595         default:
 596                 printf("export_type: Unknown type code \"%s\".\n",
 597                        get_type_tpop_name(tp));
 598                 break;
 599         }
 600         fputc('\n', f);
 601 }
 602
 603 static void export_entity(io_env_t *env, ir_entity *ent)
 604 {
 605         FILE          *file       = env->file;
 606         ir_type       *owner      = get_entity_owner(ent);
 607         ir_visibility  visibility = get_entity_visibility(ent);
 608         ir_linkage     linkage    = get_entity_linkage(ent);
 609
 610         /* we don't dump array_element_ent entities. They're a strange concept
 611          * and lead to cycles in type_graph.
 612          */
 613         if (is_Array_type(owner))
 614                 return;
 615
 616         fprintf(env->file, "\tentity ");
 617         write_long(env, get_entity_nr(ent));
 618         write_ident_null(env, get_entity_ident(ent));
 619         if (!entity_has_ld_ident(ent)) {
 620                 write_ident_null(env, NULL);
 621         } else {
 622                 write_ident_null(env, get_entity_ld_ident(ent));
 623         }
 624
 625         /* visibility + linkage */
 626         if (visibility != ir_visibility_default) {
 627                 fprintf(file, "%s ", get_visibility_name(visibility));
 628         }
 629         if (linkage & IR_LINKAGE_CONSTANT)
 630                 fputs("constant ", file);
 631         if (linkage & IR_LINKAGE_WEAK)
 632                 fputs("weak ", file);
 633         if (linkage & IR_LINKAGE_GARBAGE_COLLECT)
 634                 fputs("garbage_collect ", file);
 635         if (linkage & IR_LINKAGE_MERGE)
 636                 fputs("merge ", file);
 637         if (linkage & IR_LINKAGE_HIDDEN_USER)
 638                 fputs("hidden_user ", file);
 639
 640         fprintf(file, "%ld %ld %d %u %d %s ",
 641                         get_type_nr(get_entity_type(ent)),
 642                         get_type_nr(owner),
 643                         get_entity_offset(ent),
 644                         (unsigned) get_entity_offset_bits_remainder(ent),
 645                         is_entity_compiler_generated(ent),
 646                         get_volatility_name(get_entity_volatility(ent)));
 647
 648         if (ent->initializer != NULL) {
 649                 fputs("initializer ", env->file);
 650                 write_initializer(env, get_entity_initializer(ent));
 651         } else if (entity_has_compound_ent_values(ent)) {
 652                 size_t i, n = get_compound_ent_n_values(ent);
 653                 fputs("compoundgraph ", env->file);
 654                 ir_fprintf(env->file, "%zu ", n);
 655                 for (i = 0; i < n; i++) {
 656                         ir_entity *member = get_compound_ent_value_member(ent, i);
 657                         ir_node   *irn    = get_compound_ent_value(ent, i);
 658                         fprintf(env->file, "%ld %ld ", get_entity_nr(member), get_irn_node_nr(irn));
 659                 }
 660         } else {
 661                 fputs("none", env->file);
 662         }
 663
 664         fputc('\n', env->file);
 665 }
 666
 667 static void export_type_or_ent_pre(type_or_ent tore, void *ctx)
 668 {
 669         io_env_t *env = (io_env_t *) ctx;
 670         if (get_kind(tore.typ) == k_type)
 671                 export_type_pre(env, tore.typ);
 672 }
 673
 674 static void export_type_or_ent_post(type_or_ent tore, void *ctx)
 675 {
 676         io_env_t *env = (io_env_t *) ctx;
 677
 678         switch (get_kind(tore.ent)) {
 679         case k_entity:
 680                 export_entity(env, tore.ent);
 681                 break;
 682
 683         case k_type:
 684                 export_type_post(env, tore.typ);
 685                 break;
 686
 687         default:
 688                 panic("export_type_or_ent_post: Unknown type or entity.");
 689         }
 690 }
 691
 692 static void export_ASM(io_env_t *env, ir_node *node)
 693 {
 694         ir_asm_constraint *input_constraints    = get_ASM_input_constraints(node);
 695         ir_asm_constraint *output_constraints   = get_ASM_output_constraints(node);
 696         ident            **clobbers             = get_ASM_clobbers(node);
 697         int                n_input_constraints  = get_ASM_n_input_constraints(node);
 698         int                n_output_constraints = get_ASM_n_output_constraints(node);
 699         int                n_clobbers           = get_ASM_n_clobbers(node);
 700         int i;
 701
 702         write_ident(env, get_ASM_text(node));
 703         write_list_begin(env);
 704         for (i = 0; i < n_input_constraints; ++i) {
 705                 const ir_asm_constraint *constraint = &input_constraints[i];
 706                 write_unsigned(env, constraint->pos);
 707                 write_ident(env, constraint->constraint);
 708                 write_mode(env, constraint->mode);
 709         }
 710         write_list_end(env);
 711
 712         write_list_begin(env);
 713         for (i = 0; i < n_output_constraints; ++i) {
 714                 const ir_asm_constraint *constraint = &output_constraints[i];
 715                 write_unsigned(env, constraint->pos);
 716                 write_ident(env, constraint->constraint);
 717                 write_mode(env, constraint->mode);
 718         }
 719         write_list_end(env);
 720
 721         write_list_begin(env);
 722         for (i = 0; i < n_clobbers; ++i) {
 723                 ident *clobber = clobbers[i];
 724                 write_ident(env, clobber);
 725         }
 726         write_list_end(env);
 727 }
 728
 729 /**
 730  * Walker: exports every node.
 731  */
 732 static void export_node(ir_node *irn, void *ctx)
 733 {
 734         io_env_t *env = (io_env_t *) ctx;
 735         int i, n;
 736         unsigned opcode = get_irn_opcode(irn);
 737
 738         if (env->ignoreblocks && opcode == iro_Block)
 739                 return;
 740
 741         fprintf(env->file, "\t%s ", get_irn_opname(irn));
 742         write_long(env, get_irn_node_nr(irn));
 743
 744         write_list_begin(env);
 745         n = get_irn_arity(irn);
 746         if (!is_Block(irn)) {
 747                 ir_node *block = get_nodes_block(irn);
 748                 write_long(env, get_irn_node_nr(block));
 749         }
 750
 751         for (i = 0; i < n; i++) {
 752                 ir_node *pred = get_irn_n(irn, i);
 753                 if (pred == NULL) {
 754                         /* Anchor node may have NULL predecessors */
 755                         assert(is_Anchor(irn));
 756                         fputs("-1 ", env->file);
 757                 } else {
 758                         write_long(env, get_irn_node_nr(pred));
 759                 }
 760         }
 761         write_list_end(env);
 762
 763         fputs("{ ", env->file);
 764
 765         switch (opcode) {
 766         case iro_Start:
 767         case iro_End:
 768         case iro_Block:
 769         case iro_Anchor:
 770                 break;
 771         case iro_SymConst:
 772                 /* TODO: only symconst_addr_ent implemented yet */
 773                 assert(get_SymConst_kind(irn) == symconst_addr_ent);
 774                 fprintf(env->file, "%ld ", get_entity_nr(get_SymConst_entity(irn)));
 775                 write_mode(env, get_irn_mode(irn));
 776                 break;
 777         case iro_Proj:
 778                 write_mode(env, get_irn_mode(irn));
 779                 fprintf(env->file, "%ld ", get_Proj_proj(irn));
 780                 break;
 781         case iro_ASM:
 782                 export_ASM(env, irn);
 783                 break;
 784 #include "gen_irio_export.inl"
 785         default:
 786                 panic("no export code for node %+F\n", irn);
 787         }
 788         fputs("}\n", env->file);
 789 }
 790
 791 static const char *get_mode_sort_name(ir_mode_sort sort)
 792 {
 793         switch (sort) {
 794         case irms_auxiliary:        return "auxiliary";
 795         case irms_control_flow:     return "control_flow";
 796         case irms_memory:           return "memory";
 797         case irms_internal_boolean: return "internal_boolean";
 798         case irms_reference:        return "reference";
 799         case irms_int_number:       return "int_number";
 800         case irms_float_number:     return "float_number";
 801         }
 802         panic("invalid mode sort found");
 803 }
 804
 805 static void export_modes(io_env_t *env)
 806 {
 807         size_t i, n_modes = get_irp_n_modes();
 808
 809         fputs("modes {\n", env->file);
 810
 811         for (i = 0; i < n_modes; i++) {
 812                 ir_mode *mode = get_irp_mode(i);
 813                 switch (get_mode_sort(mode)) {
 814                 case irms_auxiliary:
 815                 case irms_control_flow:
 816                 case irms_memory:
 817                 case irms_internal_boolean:
 818                         /* skip "internal" modes, which may not be user defined */
 819                         continue;
 820                 default:
 821                         break;
 822                 }
 823
 824                 fprintf(env->file, "\tmode ");
 825                 write_string(env, get_mode_name(mode));
 826                 fprintf(env->file, "%s %u %d %s %u %u ",
 827                         get_mode_sort_name(get_mode_sort(mode)),
 828                         get_mode_size_bits(mode), get_mode_sign(mode),
 829                         get_mode_arithmetic_name(get_mode_arithmetic(mode)),
 830                         get_mode_modulo_shift(mode),
 831                         get_mode_n_vector_elems(mode));
 832                 if (mode_is_reference(mode)) {
 833                         write_mode(env, get_reference_mode_signed_eq(mode));
 834                         write_mode(env, get_reference_mode_unsigned_eq(mode));
 835                         write_int(env, (mode == mode_P ? 1 : 0));
 836                 }
 837                 fputc('\n', env->file);
 838         }
 839
 840         fputs("}\n", env->file);
 841 }
 842
 843 static void export_program(io_env_t *env)
 844 {
 845         FILE         *f = env->file;
 846         ir_segment_t  s;
 847
 848         fputs("\nprogram {\n", f);
 849         if (irp_prog_name_is_set()) {
 850                 fprintf(f, "\tname ");
 851                 write_string(env, get_irp_name());
 852                 fputc('\n', f);
 853         }
 854
 855         for (s = IR_SEGMENT_FIRST; s <= IR_SEGMENT_LAST; ++s) {
 856                 ir_type *segment_type = get_segment_type(s);
 857                 fprintf(f, "\tsegment_type %s ", get_segment_name(s));
 858                 if (segment_type == NULL) {
 859                         fputs(" NULL\n", f);
 860                 } else {
 861                         write_long(env, get_type_nr(segment_type));
 862                         fputc('\n', f);
 863                 }
 864         }
 865         fputs("}\n", f);
 866 }
 867
 868 void ir_export(const char *filename)
 869 {
 870         FILE *file = fopen(filename, "wt");
 871         if (file == NULL) {
 872                 perror(filename);
 873                 return;
 874         }
 875
 876         ir_export_file(file, filename);
 877         fclose(file);
 878 }
 879
 880 /* Exports the whole irp to the given file in a textual form. */
 881 void ir_export_file(FILE *file, const char *outputname)
 882 {
 883         io_env_t env;
 884         size_t i, n_irgs = get_irp_n_irgs();
 885
 886         (void) outputname;
 887         env.file = file;
 888
 889         export_modes(&env);
 890
 891         fputs("\ntypegraph {\n", env.file);
 892         type_walk_prog(export_type_or_ent_pre, export_type_or_ent_post, &env);
 893         fputs("}\n", env.file);
 894
 895         for (i = 0; i < n_irgs; i++) {
 896                 ir_graph *irg       = get_irp_irg(i);
 897
 898                 fprintf(env.file, "\nirg %ld %ld {\n",
 899                         get_entity_nr(get_irg_entity(irg)),
 900                         get_type_nr(get_irg_frame_type(irg)));
 901
 902                 env.ignoreblocks = 0;
 903                 irg_block_walk_graph(irg, NULL, export_node, &env);
 904
 905                 env.ignoreblocks = 1;
 906                 irg_walk_anchors(irg, NULL, export_node, &env);
 907
 908                 fputs("}\n", env.file);
 909         }
 910
 911         fprintf(env.file, "\nconstirg %ld {\n", get_irn_node_nr(get_const_code_irg()->current_block));
 912
 913         walk_const_code(NULL, export_node, &env);
 914         fputs("}\n", env.file);
 915
 916         export_program(&env);
 917 }
 918
 919 /* Exports the given irg to the given file. */
 920 void ir_export_irg(ir_graph *irg, FILE *file, const char *outputname)
 921 {
 922         io_env_t env;
 923
 924         (void) outputname;
 925         env.file = file;
 926
 927         export_modes(&env);
 928
 929         fputs("typegraph {\n", env.file);
 930
 931         type_walk_irg(irg, export_type_or_ent_pre, export_type_or_ent_post, &env);
 932
 933         fprintf(env.file, "}\n\nirg %ld {\n", get_entity_nr(get_irg_entity(irg)));
 934
 935         env.ignoreblocks = 0;
 936         irg_block_walk_graph(irg, NULL, export_node, &env);
 937
 938         env.ignoreblocks = 1;
 939         irg_walk_anchors(irg, NULL, export_node, &env);
 940
 941         /* TODO: Only output needed constants */
 942         fprintf(env.file, "}\n\nconstirg %ld {\n", get_irn_node_nr(get_const_code_irg()->current_block));
 943         walk_const_code(NULL, export_node, &env);
 944         fputs("}\n", env.file);
 945 }
 946
 947 static void read_c(io_env_t *env)
 948 {
 949         int c = fgetc(env->file);
 950         env->c = c;
 951         if (c == '\n')
 952                 env->line++;
 953 }
 954
 955 /** Returns the first non-whitespace character or EOF. **/
 956 static void skip_ws(io_env_t *env)
 957 {
 958         while (true) {
 959                 switch (env->c) {
 960                 case ' ':
 961                 case '\t':
 962                 case '\n':
 963                 case '\r':
 964                         read_c(env);
 965                         continue;
 966
 967                 default:
 968                         return;
 969                 }
 970         }
 971 }
 972
 973 static void skip_to(io_env_t *env, char to_ch)
 974 {
 975         while (env->c != to_ch && env->c != EOF) {
 976                 read_c(env);
 977         }
 978 }
 979
 980 static int expect_char(io_env_t *env, char ch)
 981 {
 982         skip_ws(env);
 983         if (env->c != ch) {
 984                 parse_error(env, "Unexpected char '%c', expected '%c'\n",
 985                             env->c, ch);
 986                 return 0;
 987         }
 988         read_c(env);
 989         return 1;
 990 }
 991
 992 #define EXPECT(c) if (expect_char(env, (c))) {} else return 0
 993
 994 static char *read_word(io_env_t *env)
 995 {
 996         skip_ws(env);
 997
 998         assert(obstack_object_size(&env->obst) == 0);
 999         while (true) {
1000                 int c = env->c;
1001                 switch (c) {
1002                 case EOF:
1003                 case ' ':
1004                 case '\t':
1005                 case '\n':
1006                 case '\r':
1007                         goto endofword;
1008
1009                 default:
1010                         obstack_1grow(&env->obst, c);
1011                         break;
1012                 }
1013                 read_c(env);
1014         }
1015
1016 endofword:
1017         obstack_1grow(&env->obst, '\0');
1018         return (char*)obstack_finish(&env->obst);
1019 }
1020
1021 static char *read_string(io_env_t *env)
1022 {
1023         skip_ws(env);
1024         if (env->c != '"') {
1025                 parse_error(env, "Expected string, got '%c'\n", env->c);
1026                 exit(1);
1027         }
1028         read_c(env);
1029
1030         assert(obstack_object_size(&env->obst) == 0);
1031         while (env->c != '"') {
1032                 if (env->c == EOF) {
1033                         parse_error(env, "Unexpected EOF while parsing string\n");
1034                         exit(1);
1035                 }
1036
1037                 if (env->c == '\\') {
1038                         read_c(env);
1039                         switch (env->c) {
1040                         case 'n':
1041                                 obstack_1grow(&env->obst, '\n');
1042                                 break;
1043                         case '"':
1044                         case '\\':
1045                                 obstack_1grow(&env->obst, env->c);
1046                                 break;
1047                         default:
1048                                 parse_error(env, "Unknown escape sequence '\\%c'\n", env->c);
1049                                 exit(1);
1050                         }
1051                 } else {
1052                         obstack_1grow(&env->obst, env->c);
1053                 }
1054                 read_c(env);
1055         }
1056         read_c(env);
1057         obstack_1grow(&env->obst, 0);
1058
1059         return (char*)obstack_finish(&env->obst);
1060 }
1061
1062 static ident *read_ident(io_env_t *env)
1063 {
1064         char  *str = read_string(env);
1065         ident *res = new_id_from_str(str);
1066         obstack_free(&env->obst, str);
1067         return res;
1068 }
1069
1070 /*
1071  * reads a "quoted string" or alternatively the token NULL
1072  */
1073 static char *read_string_null(io_env_t *env)
1074 {
1075         skip_ws(env);
1076         if (env->c == 'N') {
1077                 char *str = read_word(env);
1078                 if (strcmp(str, "NULL") == 0) {
1079                         obstack_free(&env->obst, str);
1080                         return NULL;
1081                 }
1082         } else if (env->c == '"') {
1083                 return read_string(env);
1084         }
1085
1086         parse_error(env, "Expected \"string\" or NULL\n");
1087         exit(1);
1088 }
1089
1090 static ident *read_ident_null(io_env_t *env)
1091 {
1092         ident *res;
1093         char  *str = read_string_null(env);
1094         if (str == NULL)
1095                 return NULL;
1096
1097         res = new_id_from_str(str);
1098         obstack_free(&env->obst, str);
1099         return res;
1100 }
1101
1102 static long read_long(io_env_t *env)
1103 {
1104         long  result;
1105         char *str;
1106
1107         skip_ws(env);
1108         if (!isdigit(env->c) && env->c != '-') {
1109                 parse_error(env, "Expected number, got '%c'\n", env->c);
1110                 exit(1);
1111         }
1112
1113         assert(obstack_object_size(&env->obst) == 0);
1114         do {
1115                 obstack_1grow(&env->obst, env->c);
1116                 read_c(env);
1117         } while (isdigit(env->c));
1118         obstack_1grow(&env->obst, 0);
1119
1120         str = (char*)obstack_finish(&env->obst);
1121         result = atol(str);
1122         obstack_free(&env->obst, str);
1123
1124         return result;
1125 }
1126
1127 static int read_int(io_env_t *env)
1128 {
1129         return (int) read_long(env);
1130 }
1131
1132 static unsigned read_unsigned(io_env_t *env)
1133 {
1134         return (unsigned) read_long(env);
1135 }
1136
1137 static size_t read_size_t(io_env_t *env)
1138 {
1139         /* FIXME */
1140         return (size_t) read_unsigned(env);
1141 }
1142
1143 static void expect_list_begin(io_env_t *env)
1144 {
1145         skip_ws(env);
1146         if (env->c != '[') {
1147                 parse_error(env, "Expected list, got '%c'\n", env->c);
1148                 exit(1);
1149         }
1150         read_c(env);
1151 }
1152
1153 static bool list_has_next(io_env_t *env)
1154 {
1155         if (feof(env->file)) {
1156                 parse_error(env, "Unexpected EOF while reading list");
1157                 exit(1);
1158         }
1159         skip_ws(env);
1160         if (env->c == ']') {
1161                 read_c(env);
1162                 return false;
1163         }
1164
1165         return true;
1166 }
1167
1168 static ir_node *get_node_or_null(io_env_t *env, long nodenr)
1169 {
1170         ir_node *node = (ir_node *) get_id(env, nodenr);
1171         if (node && node->kind != k_ir_node) {
1172                 panic("Irn ID %ld collides with something else in line %d\n",
1173                       nodenr, env->line);
1174         }
1175         return node;
1176 }
1177
1178 static ir_node *get_node_or_dummy(io_env_t *env, long nodenr)
1179 {
1180         ir_node *node = get_node_or_null(env, nodenr);
1181         if (node == NULL) {
1182                 node = new_r_Dummy(env->irg, mode_X);
1183                 set_id(env, nodenr, node);
1184         }
1185         return node;
1186 }
1187
1188 static ir_type *get_type(io_env_t *env, long typenr)
1189 {
1190         ir_type *type = (ir_type *) get_id(env, typenr);
1191         if (type == NULL)
1192                 panic("unknown type: %ld in line %d\n", typenr, env->line);
1193         else if (type->kind != k_type)
1194                 panic("type ID %ld collides with something else in line %d\n",
1195                       typenr, env->line);
1196         return type;
1197 }
1198
1199 static ir_type *read_type(io_env_t *env)
1200 {
1201         return get_type(env, read_long(env));
1202 }
1203
1204 static ir_entity *get_entity(io_env_t *env, long entnr)
1205 {
1206         ir_entity *entity = (ir_entity *) get_id(env, entnr);
1207         if (entity == NULL) {
1208                 parse_error(env, "unknown entity: %ld\n", entnr);
1209                 exit(1);
1210         } else if (entity->kind != k_entity) {
1211                 panic("Entity ID %ld collides with something else in line %d\n",
1212                       entnr, env->line);
1213         }
1214
1215         return entity;
1216 }
1217
1218 static ir_entity *read_entity(io_env_t *env)
1219 {
1220         return get_entity(env, read_long(env));
1221 }
1222
1223 static ir_mode *read_mode(io_env_t *env)
1224 {
1225         char *str = read_string(env);
1226         size_t i, n;
1227
1228         n = get_irp_n_modes();
1229         for (i = 0; i < n; i++) {
1230                 ir_mode *mode = get_irp_mode(i);
1231                 if (strcmp(str, get_mode_name(mode)) == 0) {
1232                         obstack_free(&env->obst, str);
1233                         return mode;
1234                 }
1235         }
1236
1237         parse_error(env, "unknown mode \"%s\"\n", str);
1238         exit(1);
1239 }
1240
1241 static const char *get_typetag_name(typetag_t typetag)
1242 {
1243         switch (typetag) {
1244         case tt_align:              return "align";
1245         case tt_allocation:         return "allocation";
1246         case tt_builtin:            return "builtin kind";
1247         case tt_cond_jmp_predicate: return "cond_jmp_predicate";
1248         case tt_initializer:        return "initializer kind";
1249         case tt_iro:                return "opcode";
1250         case tt_keyword:            return "keyword";
1251         case tt_linkage:            return "linkage";
1252         case tt_mode_arithmetic:    return "mode_arithmetic";
1253         case tt_mode_sort:          return "mode_sort";
1254         case tt_pin_state:          return "pin state";
1255         case tt_segment:            return "segment";
1256         case tt_tpo:                return "type";
1257         case tt_type_state:         return "type state";
1258         case tt_volatility:         return "volatility";
1259         case tt_visibility:         return "visibility";
1260         }
1261         return "<UNKNOWN>";
1262 }
1263
1264 /**
1265  * Read and decode an enum constant.
1266  */
1267 static unsigned read_enum(io_env_t *env, typetag_t typetag)
1268 {
1269         char     *str  = read_word(env);
1270         unsigned  code = symbol(str, typetag);
1271
1272         if (code != SYMERROR) {
1273                 obstack_free(&env->obst, str);
1274                 return code;
1275         }
1276
1277         parse_error(env, "invalid %s: \"%s\"\n", get_typetag_name(typetag), str);
1278         return 0;
1279 }
1280
1281 #define read_align(env)              ((ir_align)              read_enum(env, tt_align))
1282 #define read_allocation(env)         ((ir_allocation)         read_enum(env, tt_allocation))
1283 #define read_builtin_kind(env)       ((ir_builtin_kind)       read_enum(env, tt_builtin))
1284 #define read_cond_jmp_predicate(env) ((cond_jmp_predicate)    read_enum(env, tt_cond_jmp_predicate))
1285 #define read_initializer_kind(env)   ((ir_initializer_kind_t) read_enum(env, tt_initializer))
1286 #define read_mode_arithmetic(env)    ((ir_mode_arithmetic)    read_enum(env, tt_mode_arithmetic))
1287 #define read_peculiarity(env)        ((ir_peculiarity)        read_enum(env, tt_peculiarity))
1288 #define read_pin_state(env)          ((op_pin_state)          read_enum(env, tt_pin_state))
1289 #define read_type_state(env)         ((ir_type_state)         read_enum(env, tt_type_state))
1290 #define read_variability(env)        ((ir_variability)        read_enum(env, tt_variability))
1291 #define read_volatility(env)         ((ir_volatility)         read_enum(env, tt_volatility))
1292
1293 static ir_tarval *read_tv(io_env_t *env)
1294 {
1295         ir_mode   *tvmode = read_mode(env);
1296         char      *str    = read_word(env);
1297         ir_tarval *tv     = new_tarval_from_str(str, strlen(str), tvmode);
1298         obstack_free(&env->obst, str);
1299
1300         return tv;
1301 }
1302
1303 static ir_initializer_t *read_initializer(io_env_t *env)
1304 {
1305         ir_initializer_kind_t ini_kind = read_initializer_kind(env);
1306
1307         switch (ini_kind) {
1308         case IR_INITIALIZER_CONST: {
1309                 ir_node *irn = get_node_or_dummy(env, read_long(env));
1310                 return create_initializer_const(irn);
1311         }
1312
1313         case IR_INITIALIZER_TARVAL:
1314                 return create_initializer_tarval(read_tv(env));
1315
1316         case IR_INITIALIZER_NULL:
1317                 return get_initializer_null();
1318
1319         case IR_INITIALIZER_COMPOUND: {
1320                 size_t i, n = read_size_t(env);
1321                 ir_initializer_t *ini = create_initializer_compound(n);
1322                 for (i = 0; i < n; i++) {
1323                         ir_initializer_t *curini = read_initializer(env);
1324                         set_initializer_compound_value(ini, i, curini);
1325                 }
1326                 return ini;
1327         }
1328
1329         default:
1330                 panic("Unknown initializer kind");
1331         }
1332 }
1333
1334
1335 /** Reads a type description and remembers it by its id. */
1336 static void import_type(io_env_t *env)
1337 {
1338         int            i;
1339         ir_type       *type;
1340         long           typenr = read_long(env);
1341         tp_opcode      tpop   = (tp_opcode) read_enum(env, tt_tpo);
1342         unsigned       size   = (unsigned) read_long(env);
1343         unsigned       align  = (unsigned) read_long(env);
1344         ir_type_state  state  = read_type_state(env);
1345         unsigned       flags  = (unsigned) read_long(env);
1346
1347         switch (tpop) {
1348         case tpo_array: {
1349                 int ndims = (int) read_long(env);
1350                 long elemtypenr = read_long(env);
1351                 ir_type *elemtype = get_type(env, elemtypenr);
1352
1353                 type = new_type_array(ndims, elemtype);
1354                 for (i = 0; i < ndims; i++) {
1355                         char *str = read_word(env);
1356                         if (strcmp(str, "unknown") != 0) {
1357                                 long lowerbound = atol(str);
1358                                 set_array_lower_bound_int(type, i, lowerbound);
1359                         }
1360                         obstack_free(&env->obst, str);
1361
1362                         str = read_word(env);
1363                         if (strcmp(str, "unknown") != 0) {
1364                                 long upperbound = atol(str);
1365                                 set_array_upper_bound_int(type, i, upperbound);
1366                         }
1367                         obstack_free(&env->obst, str);
1368                 }
1369                 set_type_size_bytes(type, size);
1370                 break;
1371         }
1372
1373         case tpo_class: {
1374                 ident *id = read_ident_null(env);
1375
1376                 if (typenr == (long) IR_SEGMENT_GLOBAL)
1377                         type = get_glob_type();
1378                 else
1379                         type = new_type_class(id);
1380                 set_type_size_bytes(type, size);
1381                 break;
1382         }
1383
1384         case tpo_method: {
1385                 unsigned                  callingconv = (unsigned) read_long(env);
1386                 mtp_additional_properties addprops    = (mtp_additional_properties) read_long(env);
1387                 int nparams          = (int)      read_long(env);
1388                 int nresults         = (int)      read_long(env);
1389                 int variadicity;
1390
1391                 type = new_type_method(nparams, nresults);
1392
1393                 for (i = 0; i < nparams; i++) {
1394                         long ptypenr = read_long(env);
1395                         ir_type *paramtype = get_type(env, ptypenr);
1396
1397                         set_method_param_type(type, i, paramtype);
1398                 }
1399                 for (i = 0; i < nresults; i++) {
1400                         long ptypenr = read_long(env);
1401                         ir_type *restype = get_type(env, ptypenr);
1402
1403                         set_method_res_type(type, i, restype);
1404                 }
1405
1406                 variadicity = (int) read_long(env);
1407                 set_method_variadicity(type, variadicity);
1408
1409                 set_method_calling_convention(type, callingconv);
1410                 set_method_additional_properties(type, addprops);
1411                 break;
1412         }
1413
1414         case tpo_pointer: {
1415                 ir_mode *mode     = read_mode(env);
1416                 ir_type *pointsto = get_type(env, read_long(env));
1417                 type = new_type_pointer(pointsto);
1418                 set_type_mode(type, mode);
1419                 break;
1420         }
1421
1422         case tpo_primitive: {
1423                 ir_mode *mode = read_mode(env);
1424                 type = new_type_primitive(mode);
1425                 break;
1426         }
1427
1428         case tpo_struct: {
1429                 ident *id = read_ident_null(env);
1430                 type = new_type_struct(id);
1431                 set_type_size_bytes(type, size);
1432                 break;
1433         }
1434
1435         case tpo_union: {
1436                 ident *id = read_ident_null(env);
1437                 type = new_type_union(id);
1438                 set_type_size_bytes(type, size);
1439                 break;
1440         }
1441
1442         case tpo_unknown:
1443                 return;   /* ignore unknown type */
1444
1445         default:
1446                 parse_error(env, "unknown type kind: \"%d\"\n", tpop);
1447                 skip_to(env, '\n');
1448                 return;
1449         }
1450
1451         set_type_alignment_bytes(type, align);
1452         type->flags = flags;
1453
1454         if (state == layout_fixed)
1455                 ARR_APP1(ir_type *, env->fixedtypes, type);
1456
1457         set_id(env, typenr, type);
1458 }
1459
1460 /** Reads an entity description and remembers it by its id. */
1461 static void import_entity(io_env_t *env)
1462 {
1463         long           entnr      = read_long(env);
1464         ident         *name       = read_ident(env);
1465         ident         *ld_name    = read_ident_null(env);
1466         ir_visibility  visibility = ir_visibility_default;
1467         ir_linkage     linkage    = IR_LINKAGE_DEFAULT;
1468         long           typenr;
1469         long           ownertypenr;
1470         const char    *str;
1471         ir_type       *type;
1472         ir_type       *ownertype;
1473         ir_entity     *entity;
1474
1475         skip_ws(env);
1476         while (!isdigit(env->c)) {
1477                 char     *vstr = read_word(env);
1478                 unsigned  v;
1479
1480                 skip_ws(env);
1481
1482                 v = symbol(vstr, tt_visibility);
1483                 if (v != SYMERROR) {
1484                         visibility = (ir_visibility)v;
1485                         continue;
1486                 }
1487                 v = symbol(vstr, tt_linkage);
1488                 if (v != SYMERROR) {
1489                         linkage |= (ir_linkage)v;
1490                         continue;
1491                 }
1492                 printf("Parser error, expected visibility or linkage, got '%s'\n",
1493                        vstr);
1494                 break;
1495         }
1496
1497         typenr      = read_long(env);
1498         ownertypenr = read_long(env);
1499
1500         type      = get_type(env, typenr);
1501         ownertype = !ownertypenr ? get_glob_type() : get_type(env, ownertypenr);
1502         entity    = new_entity(ownertype, name, type);
1503
1504         if (ld_name != NULL)
1505                 set_entity_ld_ident(entity, ld_name);
1506         set_entity_offset(entity, (int) read_long(env));
1507         set_entity_offset_bits_remainder(entity, (unsigned char) read_long(env));
1508         set_entity_compiler_generated(entity, (int) read_long(env));
1509         set_entity_volatility(entity, read_volatility(env));
1510         set_entity_visibility(entity, visibility);
1511         set_entity_linkage(entity, linkage);
1512
1513         str = read_word(env);
1514         if (strcmp(str, "initializer") == 0) {
1515                 set_entity_initializer(entity, read_initializer(env));
1516         } else if (strcmp(str, "compoundgraph") == 0) {
1517                 int n = (int) read_long(env);
1518                 int i;
1519                 for (i = 0; i < n; i++) {
1520                         ir_entity *member = get_entity(env, read_long(env));
1521                         ir_node   *irn    = get_node_or_dummy(env, read_long(env));
1522                         add_compound_ent_value(entity, irn, member);
1523                 }
1524         } else if (strcmp(str, "none") == 0) {
1525                 /* do nothing */
1526         } else {
1527                 parse_error(env, "expected 'initializer', 'compoundgraph' or 'none' got '%s'\n", str);
1528                 exit(1);
1529         }
1530
1531         set_id(env, entnr, entity);
1532 }
1533
1534 /** Parses the whole type graph. */
1535 static int parse_typegraph(io_env_t *env)
1536 {
1537         ir_graph *old_irg = env->irg;
1538         keyword_t kwkind;
1539
1540         EXPECT('{');
1541
1542         env->irg = get_const_code_irg();
1543
1544         /* parse all types first */
1545         while (true) {
1546                 skip_ws(env);
1547                 if (env->c == '}') {
1548                         read_c(env);
1549                         break;
1550                 }
1551
1552                 kwkind = (keyword_t) read_enum(env, tt_keyword);
1553                 switch (kwkind) {
1554                 case kw_type:
1555                         import_type(env);
1556                         break;
1557
1558                 case kw_entity:
1559                         import_entity(env);
1560                         break;
1561
1562                 default:
1563                         parse_error(env, "type graph element not supported yet: %d\n", kwkind);
1564                         skip_to(env, '\n');
1565                         break;
1566                 }
1567         }
1568         env->irg = old_irg;
1569         return 1;
1570 }
1571
1572 static int read_node_header(io_env_t *env, long *nodenr, ir_node ***preds,
1573                             const char **nodename)
1574 {
1575         int numpreds;
1576
1577         *nodename = read_word(env);
1578         *nodenr   = read_long(env);
1579
1580         ARR_RESIZE(ir_node*, *preds, 0);
1581
1582         expect_list_begin(env);
1583         for (numpreds = 0; list_has_next(env); numpreds++) {
1584                 long     val  = read_long(env);
1585                 ir_node *pred = get_node_or_dummy(env, val);
1586                 ARR_APP1(ir_node*, *preds, pred);
1587         }
1588
1589         return numpreds;
1590 }
1591
1592 static ir_node *read_ASM(io_env_t *env, int numpreds, ir_node **preds)
1593 {
1594         ir_node *newnode;
1595         ir_asm_constraint *input_constraints  = NEW_ARR_F(ir_asm_constraint, 0);
1596         ir_asm_constraint *output_constraints = NEW_ARR_F(ir_asm_constraint, 0);
1597         ident            **clobbers           = NEW_ARR_F(ident*, 0);
1598
1599         ident *asm_text = read_ident(env);
1600
1601         expect_list_begin(env);
1602         while (list_has_next(env)) {
1603                 ir_asm_constraint constraint;
1604                 constraint.pos        = read_unsigned(env);
1605                 constraint.constraint = read_ident(env);
1606                 constraint.mode       = read_mode(env);
1607                 ARR_APP1(ir_asm_constraint, input_constraints, constraint);
1608         }
1609
1610         expect_list_begin(env);
1611         while (list_has_next(env)) {
1612                 ir_asm_constraint constraint;
1613                 constraint.pos        = read_unsigned(env);
1614                 constraint.constraint = read_ident(env);
1615                 constraint.mode       = read_mode(env);
1616                 ARR_APP1(ir_asm_constraint, output_constraints, constraint);
1617         }
1618
1619         expect_list_begin(env);
1620         while (list_has_next(env)) {
1621                 ident *clobber = read_ident(env);
1622                 ARR_APP1(ident*, clobbers, clobber);
1623         }
1624
1625         assert(ARR_LEN(input_constraints) == (size_t)numpreds-1);
1626
1627         newnode = new_r_ASM(preds[0], numpreds-1, preds+1,
1628                         input_constraints,
1629                         ARR_LEN(output_constraints),
1630                         output_constraints,
1631                         ARR_LEN(clobbers),
1632                         clobbers,
1633                         asm_text);
1634         DEL_ARR_F(clobbers);
1635         DEL_ARR_F(output_constraints);
1636         DEL_ARR_F(input_constraints);
1637         return newnode;
1638 }
1639
1640 /** Parses an IRG. */
1641 static int parse_graph(io_env_t *env, ir_graph *irg)
1642 {
1643         ir_node   **preds = NEW_ARR_F(ir_node*,0);
1644         int         i, numpreds, ret = 1;
1645         long        nodenr;
1646         const char *nodename;
1647         ir_node    *node, *newnode;
1648
1649         env->irg = irg;
1650
1651         EXPECT('{');
1652
1653         while (true) {
1654                 skip_ws(env);
1655                 if (env->c == '}') {
1656                         read_c(env);
1657                         break;
1658                 }
1659
1660                 numpreds = read_node_header(env, &nodenr, &preds, &nodename);
1661
1662                 node = get_node_or_null(env, nodenr);
1663                 newnode = NULL;
1664
1665                 EXPECT('{');
1666
1667                 switch (symbol(nodename, tt_iro)) {
1668                 case iro_End: {
1669                         ir_node *newendblock = preds[0];
1670                         newnode = get_irg_end(irg);
1671                         exchange(get_nodes_block(newnode), newendblock);
1672                         for (i = 1; i < numpreds; i++)
1673                                 add_irn_n(newnode, preds[i]);
1674                         break;
1675                 }
1676
1677                 case iro_Start: {
1678                         ir_node *newstartblock = preds[0];
1679                         newnode = get_irg_start(irg);
1680                         exchange(get_nodes_block(newnode), newstartblock);
1681                         break;
1682                 }
1683
1684                 case iro_Block:
1685                         newnode = new_r_Block(irg, numpreds, preds);
1686                         break;
1687
1688                 case iro_Anchor:
1689                         newnode = irg->anchor;
1690                         for (i = 1; i < numpreds; i++)
1691                                 set_irn_n(newnode, i-1, preds[i]);
1692                         set_nodes_block(newnode, preds[0]);
1693                         break;
1694
1695                 case iro_SymConst: {
1696                         long entnr = read_long(env);
1697                         union symconst_symbol sym;
1698                         sym.entity_p = get_entity(env, entnr);
1699                         ir_mode *mode = read_mode(env);
1700                         newnode = new_r_SymConst(irg, mode, sym, symconst_addr_ent);
1701                         break;
1702                 }
1703
1704                 case iro_Proj: {
1705                         ir_mode *mode = read_mode(env);
1706                         long     pn   = read_long(env);
1707                         newnode = new_r_Proj(preds[1], mode, pn);
1708                         /* explicitely set block, since preds[1] might be a dummy node
1709                          * which is always in the startblock */
1710                         set_nodes_block(newnode, preds[0]);
1711                         break;
1712                 }
1713
1714                 case iro_ASM:
1715                         newnode = read_ASM(env, numpreds, preds);
1716                         break;
1717
1718                 #include "gen_irio_import.inl"
1719
1720                 default:
1721                         goto notsupported;
1722                 }
1723
1724                 EXPECT('}');
1725
1726                 if (!newnode) {
1727 notsupported:
1728                         parse_error(env, "node type not supported yet: %s\n", nodename);
1729                         abort();
1730                 }
1731
1732                 if (node)
1733                         exchange(node, newnode);
1734                 /* Always update hash entry to avoid more uses of id nodes */
1735                 set_id(env, nodenr, newnode);
1736         }
1737
1738         DEL_ARR_F(preds);
1739
1740         return ret;
1741 }
1742
1743 static int parse_modes(io_env_t *env)
1744 {
1745         EXPECT('{');
1746
1747         while (true) {
1748                 keyword_t kwkind;
1749
1750                 skip_ws(env);
1751                 if (env->c == '}') {
1752                         read_c(env);
1753                         break;
1754                 }
1755
1756                 kwkind = (keyword_t) read_enum(env, tt_keyword);
1757                 switch (kwkind) {
1758                 case kw_mode: {
1759                         const char *name = read_string(env);
1760                         ir_mode_sort sort = (ir_mode_sort)read_enum(env, tt_mode_sort);
1761                         int size = read_long(env);
1762                         int sign = read_long(env);
1763                         ir_mode_arithmetic arith = read_mode_arithmetic(env);
1764                         unsigned modulo_shift = read_long(env);
1765                         int vector_elems = read_long(env);
1766                         ir_mode *mode;
1767
1768                         if (vector_elems != 1) {
1769                                 panic("no support for import of vector modes yes");
1770                         }
1771
1772                         mode = new_ir_mode(name, sort, size, sign, arith, modulo_shift);
1773                         if (mode_is_reference(mode)) {
1774                                 set_reference_mode_signed_eq(mode, read_mode(env));
1775                                 set_reference_mode_unsigned_eq(mode, read_mode(env));
1776                                 int is_mode_P = read_int(env);
1777                                 if (is_mode_P) {
1778                                         set_modeP_data(mode);
1779                                         set_modeP_code(mode);
1780                                 }
1781                         }
1782                         break;
1783                 }
1784
1785                 default:
1786                         skip_to(env, '\n');
1787                         break;
1788                 }
1789         }
1790         return 1;
1791 }
1792
1793 static int parse_program(io_env_t *env)
1794 {
1795         EXPECT('{');
1796
1797         while (true) {
1798                 keyword_t kwkind;
1799
1800                 skip_ws(env);
1801                 if (env->c == '}') {
1802                         read_c(env);
1803                         break;
1804                 }
1805
1806                 kwkind = (keyword_t) read_enum(env, tt_keyword);
1807                 switch (kwkind) {
1808                 case kw_segment_type: {
1809                         ir_segment_t  segment = (ir_segment_t) read_enum(env, tt_segment);
1810                         ir_type      *type    = read_type(env);
1811                         set_segment_type(segment, type);
1812                         break;
1813                 }
1814                 default:
1815                         parse_error(env, "unexpected keyword %d\n", kwkind);
1816                         skip_to(env, '\n');
1817                 }
1818         }
1819         return 1;
1820 }
1821
1822 void ir_import(const char *filename)
1823 {
1824         FILE *file = fopen(filename, "rt");
1825         if (file == NULL) {
1826                 perror(filename);
1827                 exit(1);
1828         }
1829
1830         ir_import_file(file, filename);
1831
1832         fclose(file);
1833 }
1834
1835 void ir_import_file(FILE *input, const char *inputname)
1836 {
1837         int oldoptimize = get_optimize();
1838         firm_verification_t oldver = get_node_verification_mode();
1839         io_env_t ioenv;
1840         io_env_t *env = &ioenv;
1841         size_t i, n;
1842
1843         symtbl_init();
1844
1845         memset(env, 0, sizeof(*env));
1846         obstack_init(&env->obst);
1847         env->idset      = new_set(id_cmp, 128);
1848         env->fixedtypes = NEW_ARR_F(ir_type *, 0);
1849         env->inputname  = inputname;
1850         env->file       = input;
1851         env->line       = 1;
1852
1853         /* read first character */
1854         read_c(env);
1855
1856         set_optimize(0);
1857         do_node_verification(FIRM_VERIFICATION_OFF);
1858
1859         while (true) {
1860                 keyword_t kw;
1861
1862                 skip_ws(env);
1863                 if (env->c == EOF)
1864                         break;
1865
1866                 kw = (keyword_t)read_enum(env, tt_keyword);
1867                 switch (kw) {
1868                 case kw_modes:
1869                         if (!parse_modes(env)) goto end;
1870                         break;
1871
1872                 case kw_typegraph:
1873                         if (!parse_typegraph(env)) goto end;
1874                         break;
1875
1876                 case kw_irg:
1877                 {
1878                         ir_entity *irgent = get_entity(env, read_long(env));
1879                         ir_graph *irg = new_ir_graph(irgent, 0);
1880                         set_irg_frame_type(irg, get_type(env, read_long(env)));
1881                         if (!parse_graph(env, irg)) goto end;
1882                         break;
1883                 }
1884
1885                 case kw_constirg: {
1886                         ir_graph *constirg = get_const_code_irg();
1887                         long bodyblockid = read_long(env);
1888                         set_id(env, bodyblockid, constirg->current_block);
1889                         if (!parse_graph(env, constirg)) goto end;
1890                         break;
1891                 }
1892
1893                 case kw_program:
1894                         parse_program(env);
1895                         break;
1896
1897                 default: {
1898                         parse_error(env, "Unexpected keyword %d at toplevel\n", kw);
1899                         exit(1);
1900                 }
1901                 }
1902         }
1903
1904 end:
1905         n = ARR_LEN(env->fixedtypes);
1906         for (i = 0; i < n; i++)
1907                 set_type_state(env->fixedtypes[i], layout_fixed);
1908
1909         DEL_ARR_F(env->fixedtypes);
1910
1911         del_set(env->idset);
1912
1913         irp_finalize_cons();
1914
1915         do_node_verification(oldver);
1916         set_optimize(oldoptimize);
1917
1918         obstack_free(&env->obst, NULL);
1919 }