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_ones_complement);
 251         INSERTENUM(tt_mode_arithmetic, irma_int_BCD);
 252         INSERTENUM(tt_mode_arithmetic, irma_ieee754);
 253         INSERTENUM(tt_mode_arithmetic, irma_float_BCD);
 254
 255         INSERTENUM(tt_pin_state, op_pin_state_floats);
 256         INSERTENUM(tt_pin_state, op_pin_state_pinned);
 257         INSERTENUM(tt_pin_state, op_pin_state_exc_pinned);
 258         INSERTENUM(tt_pin_state, op_pin_state_mem_pinned);
 259
 260         INSERTENUM(tt_type_state, layout_undefined);
 261         INSERTENUM(tt_type_state, layout_fixed);
 262
 263         INSERTENUM(tt_volatility, volatility_non_volatile);
 264         INSERTENUM(tt_volatility, volatility_is_volatile);
 265
 266 #undef INSERTKEYWORD
 267 #undef INSERTENUM
 268 #undef INSERT
 269 }
 270
 271 static const char *get_segment_name(ir_segment_t segment)
 272 {
 273         switch (segment) {
 274         case IR_SEGMENT_GLOBAL:       return "global";
 275         case IR_SEGMENT_THREAD_LOCAL: return "thread_local";
 276         case IR_SEGMENT_CONSTRUCTORS: return "constructors";
 277         case IR_SEGMENT_DESTRUCTORS:  return "destructors";
 278         }
 279         return "INVALID_SEGMENT";
 280 }
 281
 282 static const char *get_visibility_name(ir_visibility visibility)
 283 {
 284         switch (visibility) {
 285         case ir_visibility_local:    return "local";
 286         case ir_visibility_external: return "external";
 287         case ir_visibility_default:  return "default";
 288         case ir_visibility_private:  return "private";
 289         }
 290         return "INVALID_VISIBILITY";
 291 }
 292
 293 /** Returns the according symbol value for the given string and tag, or SYMERROR if none was found. */
 294 static unsigned symbol(const char *str, typetag_t typetag)
 295 {
 296         symbol_t key, *entry;
 297
 298         key.str = str;
 299         key.typetag = typetag;
 300
 301         entry = (symbol_t*)set_find(symtbl, &key, sizeof(key), firm_fnv_hash_str(str) + typetag * 17);
 302         return entry ? entry->code : SYMERROR;
 303 }
 304
 305 static void *get_id(io_env_t *env, long id)
 306 {
 307         id_entry key, *entry;
 308         key.id = id;
 309
 310         entry = (id_entry*)set_find(env->idset, &key, sizeof(key), (unsigned) id);
 311         return entry ? entry->elem : NULL;
 312 }
 313
 314 static void set_id(io_env_t *env, long id, void *elem)
 315 {
 316         id_entry key;
 317         key.id = id;
 318         key.elem = elem;
 319         set_insert(env->idset, &key, sizeof(key), (unsigned) id);
 320 }
 321
 322 static void write_long(io_env_t *env, long value)
 323 {
 324         fprintf(env->file, "%ld ", value);
 325 }
 326
 327 static void write_int(io_env_t *env, int value)
 328 {
 329         fprintf(env->file, "%d ", value);
 330 }
 331
 332 static void write_unsigned(io_env_t *env, unsigned value)
 333 {
 334         fprintf(env->file, "%u ", value);
 335 }
 336
 337 static void write_entity_ref(io_env_t *env, ir_entity *entity)
 338 {
 339         write_long(env, get_entity_nr(entity));
 340 }
 341
 342 static void write_type_ref(io_env_t *env, ir_type *type)
 343 {
 344         write_long(env, get_type_nr(type));
 345 }
 346
 347 static void write_string(io_env_t *env, const char *string)
 348 {
 349         const char *c;
 350         fputc('"', env->file);
 351         for (c = string; *c != '\0'; ++c) {
 352                 switch (*c) {
 353                 case '\n':
 354                         fputc('\\', env->file);
 355                         fputc('n', env->file);
 356                         break;
 357                 case '"':
 358                 case '\\':
 359                         fputc('\\', env->file);
 360                         /* FALLTHROUGH */
 361                 default:
 362                         fputc(*c, env->file);
 363                         break;
 364                 }
 365         }
 366         fputc('"', env->file);
 367 }
 368
 369 static void write_ident(io_env_t *env, ident *id)
 370 {
 371         write_string(env, get_id_str(id));
 372         fputc(' ', env->file);
 373 }
 374
 375 static void write_ident_null(io_env_t *env, ident *id)
 376 {
 377         if (id == NULL) {
 378                 fputs("NULL ", env->file);
 379         } else {
 380                 write_ident(env, id);
 381         }
 382 }
 383
 384 static void write_mode(io_env_t *env, ir_mode *mode)
 385 {
 386         fputs(get_mode_name(mode), env->file);
 387         fputc(' ', env->file);
 388 }
 389
 390 static void write_tarval(io_env_t *env, ir_tarval *tv)
 391 {
 392         char buf[1024];
 393         write_mode(env, get_tarval_mode(tv));
 394         tarval_snprintf(buf, sizeof(buf), tv);
 395         fputs(buf, env->file);
 396         fputc(' ', env->file);
 397 }
 398
 399 static void write_align(io_env_t *env, ir_align align)
 400 {
 401         fputs(get_align_name(align), env->file);
 402         fputc(' ', env->file);
 403 }
 404
 405 static void write_builtin_kind(io_env_t *env, ir_node *irn)
 406 {
 407         fputs(get_builtin_kind_name(get_Builtin_kind(irn)), env->file);
 408         fputc(' ', env->file);
 409 }
 410
 411 static void write_cond_jmp_predicate(io_env_t *env, ir_node *irn)
 412 {
 413         fputs(get_cond_jmp_predicate_name(get_Cond_jmp_pred(irn)), env->file);
 414         fputc(' ', env->file);
 415 }
 416
 417 static void write_list_begin(io_env_t *env)
 418 {
 419         fputs("[", env->file);
 420 }
 421
 422 static void write_list_end(io_env_t *env)
 423 {
 424         fputs("] ", env->file);
 425 }
 426
 427 static void write_initializer(io_env_t *env, ir_initializer_t *ini)
 428 {
 429         FILE *f = env->file;
 430         ir_initializer_kind_t ini_kind = get_initializer_kind(ini);
 431
 432         fputs(get_initializer_kind_name(ini_kind), f);
 433         fputc(' ', f);
 434
 435         switch (ini_kind) {
 436         case IR_INITIALIZER_CONST:
 437                 write_long(env, get_irn_node_nr(get_initializer_const_value(ini)));
 438                 break;
 439
 440         case IR_INITIALIZER_TARVAL:
 441                 write_tarval(env, get_initializer_tarval_value(ini));
 442                 break;
 443
 444         case IR_INITIALIZER_NULL:
 445                 break;
 446
 447         case IR_INITIALIZER_COMPOUND: {
 448                 size_t i, n = get_initializer_compound_n_entries(ini);
 449                 ir_fprintf(f, "%zu ", n);
 450                 for (i = 0; i < n; ++i)
 451                         write_initializer(env, get_initializer_compound_value(ini, i));
 452                 break;
 453         }
 454
 455         default:
 456                 panic("Unknown initializer kind");
 457         }
 458 }
 459
 460 static void write_pin_state(io_env_t *env, ir_node *irn)
 461 {
 462         fputs(get_op_pin_state_name(get_irn_pinned(irn)), env->file);
 463         fputc(' ', env->file);
 464 }
 465
 466 static void write_volatility(io_env_t *env, ir_volatility vol)
 467 {
 468         fputs(get_volatility_name(vol), env->file);
 469         fputc(' ', env->file);
 470 }
 471
 472 static void export_type_common(io_env_t *env, ir_type *tp)
 473 {
 474         fprintf(env->file, "\ttype %ld %s %u %u %s %u ",
 475                 get_type_nr(tp),
 476                 get_type_tpop_name(tp),
 477                 get_type_size_bytes(tp),
 478                 get_type_alignment_bytes(tp),
 479                 get_type_state_name(get_type_state(tp)),
 480                 tp->flags);
 481 }
 482
 483 static void export_type_pre(io_env_t *env, ir_type *tp)
 484 {
 485         FILE *f = env->file;
 486
 487         /* skip types to be handled by post walker */
 488         switch (get_type_tpop_code(tp)) {
 489         case tpo_array:
 490         case tpo_method:
 491         case tpo_pointer:
 492                 return;
 493         default:
 494                 break;
 495         }
 496
 497         export_type_common(env, tp);
 498
 499         switch (get_type_tpop_code(tp)) {
 500         case tpo_uninitialized:
 501                 panic("invalid type found");
 502
 503         case tpo_class:
 504                 write_ident_null(env, get_compound_ident(tp));
 505                 break;
 506
 507         case tpo_primitive:
 508                 write_mode(env, get_type_mode(tp));
 509                 break;
 510
 511         case tpo_union:
 512         case tpo_struct:
 513         case tpo_enumeration:
 514                 write_ident_null(env, get_compound_ident(tp));
 515                 break;
 516
 517         case tpo_array:
 518         case tpo_method:
 519         case tpo_pointer:
 520         case tpo_code:
 521         case tpo_none:
 522         case tpo_unknown:
 523                 break;
 524         }
 525         fputc('\n', f);
 526 }
 527
 528 static void export_type_post(io_env_t *env, ir_type *tp)
 529 {
 530         FILE *f = env->file;
 531         size_t i;
 532
 533         /* skip types already handled by pre walker */
 534         switch (get_type_tpop_code(tp)) {
 535         case tpo_class:
 536         case tpo_primitive:
 537         case tpo_struct:
 538         case tpo_union:
 539         case tpo_unknown:
 540         case tpo_uninitialized:
 541         case tpo_code:
 542         case tpo_none:
 543                 return;
 544         case tpo_array:
 545         case tpo_method:
 546         case tpo_pointer:
 547         case tpo_enumeration:
 548                 break;
 549         }
 550
 551         export_type_common(env, tp);
 552
 553         switch (get_type_tpop_code(tp)) {
 554         case tpo_array: {
 555                 size_t n = get_array_n_dimensions(tp);
 556                 ir_fprintf(f, "%zu %ld ", n, get_type_nr(get_array_element_type(tp)));
 557                 for (i = 0; i < n; i++) {
 558                         ir_node *lower = get_array_lower_bound(tp, i);
 559                         ir_node *upper = get_array_upper_bound(tp, i);
 560
 561                         if (is_Const(lower))
 562                                 write_long(env, get_tarval_long(get_Const_tarval(lower)));
 563                         else
 564                                 panic("Lower array bound is not constant");
 565
 566                         if (is_Const(upper))
 567                                 write_long(env, get_tarval_long(get_Const_tarval(upper)));
 568                         else if (is_Unknown(upper))
 569                                 fputs("unknown ", f);
 570                         else
 571                                 panic("Upper array bound is not constant");
 572                 }
 573                 break;
 574         }
 575
 576         case tpo_method: {
 577                 size_t nparams  = get_method_n_params(tp);
 578                 size_t nresults = get_method_n_ress(tp);
 579                 ir_fprintf(f, "%u %u %zu %zu ", get_method_calling_convention(tp),
 580                         get_method_additional_properties(tp), nparams, nresults);
 581                 for (i = 0; i < nparams; i++)
 582                         write_long(env, get_type_nr(get_method_param_type(tp, i)));
 583                 for (i = 0; i < nresults; i++)
 584                         write_long(env, get_type_nr(get_method_res_type(tp, i)));
 585                 ir_fprintf(f, "%u ", get_method_variadicity(tp));
 586                 break;
 587         }
 588
 589         case tpo_pointer:
 590                 write_mode(env, get_type_mode(tp));
 591                 write_long(env, get_type_nr(get_pointer_points_to_type(tp)));
 592                 break;
 593
 594         case tpo_enumeration:
 595                 fprintf(stderr, "Enumeration type not handled yet by exporter\n");
 596                 break;
 597
 598         default:
 599                 printf("export_type: Unknown type code \"%s\".\n",
 600                        get_type_tpop_name(tp));
 601                 break;
 602         }
 603         fputc('\n', f);
 604 }
 605
 606 static void export_entity(io_env_t *env, ir_entity *ent)
 607 {
 608         FILE          *file       = env->file;
 609         ir_type       *owner      = get_entity_owner(ent);
 610         ir_visibility  visibility = get_entity_visibility(ent);
 611         ir_linkage     linkage    = get_entity_linkage(ent);
 612
 613         /* we don't dump array_element_ent entities. They're a strange concept
 614          * and lead to cycles in type_graph.
 615          */
 616         if (is_Array_type(owner))
 617                 return;
 618
 619         fprintf(env->file, "\tentity ");
 620         write_long(env, get_entity_nr(ent));
 621         write_ident_null(env, get_entity_ident(ent));
 622         if (!entity_has_ld_ident(ent)) {
 623                 write_ident_null(env, NULL);
 624         } else {
 625                 write_ident_null(env, get_entity_ld_ident(ent));
 626         }
 627
 628         /* visibility + linkage */
 629         if (visibility != ir_visibility_default) {
 630                 fprintf(file, "%s ", get_visibility_name(visibility));
 631         }
 632         if (linkage & IR_LINKAGE_CONSTANT)
 633                 fputs("constant ", file);
 634         if (linkage & IR_LINKAGE_WEAK)
 635                 fputs("weak ", file);
 636         if (linkage & IR_LINKAGE_GARBAGE_COLLECT)
 637                 fputs("garbage_collect ", file);
 638         if (linkage & IR_LINKAGE_MERGE)
 639                 fputs("merge ", file);
 640         if (linkage & IR_LINKAGE_HIDDEN_USER)
 641                 fputs("hidden_user ", file);
 642
 643         fprintf(file, "%ld %ld %d %u %d %s ",
 644                         get_type_nr(get_entity_type(ent)),
 645                         get_type_nr(owner),
 646                         get_entity_offset(ent),
 647                         (unsigned) get_entity_offset_bits_remainder(ent),
 648                         is_entity_compiler_generated(ent),
 649                         get_volatility_name(get_entity_volatility(ent)));
 650
 651         if (ent->initializer != NULL) {
 652                 fputs("initializer ", env->file);
 653                 write_initializer(env, get_entity_initializer(ent));
 654         } else if (entity_has_compound_ent_values(ent)) {
 655                 size_t i, n = get_compound_ent_n_values(ent);
 656                 fputs("compoundgraph ", env->file);
 657                 ir_fprintf(env->file, "%zu ", n);
 658                 for (i = 0; i < n; i++) {
 659                         ir_entity *member = get_compound_ent_value_member(ent, i);
 660                         ir_node   *irn    = get_compound_ent_value(ent, i);
 661                         fprintf(env->file, "%ld %ld ", get_entity_nr(member), get_irn_node_nr(irn));
 662                 }
 663         } else {
 664                 fputs("none", env->file);
 665         }
 666
 667         fputc('\n', env->file);
 668 }
 669
 670 static void export_type_or_ent_pre(type_or_ent tore, void *ctx)
 671 {
 672         io_env_t *env = (io_env_t *) ctx;
 673         if (get_kind(tore.typ) == k_type)
 674                 export_type_pre(env, tore.typ);
 675 }
 676
 677 static void export_type_or_ent_post(type_or_ent tore, void *ctx)
 678 {
 679         io_env_t *env = (io_env_t *) ctx;
 680
 681         switch (get_kind(tore.ent)) {
 682         case k_entity:
 683                 export_entity(env, tore.ent);
 684                 break;
 685
 686         case k_type:
 687                 export_type_post(env, tore.typ);
 688                 break;
 689
 690         default:
 691                 panic("export_type_or_ent_post: Unknown type or entity.");
 692         }
 693 }
 694
 695 static void export_ASM(io_env_t *env, ir_node *node)
 696 {
 697         ir_asm_constraint *input_constraints    = get_ASM_input_constraints(node);
 698         ir_asm_constraint *output_constraints   = get_ASM_output_constraints(node);
 699         ident            **clobbers             = get_ASM_clobbers(node);
 700         int                n_input_constraints  = get_ASM_n_input_constraints(node);
 701         int                n_output_constraints = get_ASM_n_output_constraints(node);
 702         int                n_clobbers           = get_ASM_n_clobbers(node);
 703         int i;
 704
 705         write_ident(env, get_ASM_text(node));
 706         write_list_begin(env);
 707         for (i = 0; i < n_input_constraints; ++i) {
 708                 const ir_asm_constraint *constraint = &input_constraints[i];
 709                 write_unsigned(env, constraint->pos);
 710                 write_ident(env, constraint->constraint);
 711                 write_mode(env, constraint->mode);
 712         }
 713         write_list_end(env);
 714
 715         write_list_begin(env);
 716         for (i = 0; i < n_output_constraints; ++i) {
 717                 const ir_asm_constraint *constraint = &output_constraints[i];
 718                 write_unsigned(env, constraint->pos);
 719                 write_ident(env, constraint->constraint);
 720                 write_mode(env, constraint->mode);
 721         }
 722         write_list_end(env);
 723
 724         write_list_begin(env);
 725         for (i = 0; i < n_clobbers; ++i) {
 726                 ident *clobber = clobbers[i];
 727                 write_ident(env, clobber);
 728         }
 729         write_list_end(env);
 730 }
 731
 732 /**
 733  * Walker: exports every node.
 734  */
 735 static void export_node(ir_node *irn, void *ctx)
 736 {
 737         io_env_t *env = (io_env_t *) ctx;
 738         int i, n;
 739         unsigned opcode = get_irn_opcode(irn);
 740
 741         if (env->ignoreblocks && opcode == iro_Block)
 742                 return;
 743
 744         fprintf(env->file, "\t%s ", get_irn_opname(irn));
 745         write_long(env, get_irn_node_nr(irn));
 746
 747         write_list_begin(env);
 748         n = get_irn_arity(irn);
 749         if (!is_Block(irn)) {
 750                 ir_node *block = get_nodes_block(irn);
 751                 write_long(env, get_irn_node_nr(block));
 752         }
 753
 754         for (i = 0; i < n; i++) {
 755                 ir_node *pred = get_irn_n(irn, i);
 756                 if (pred == NULL) {
 757                         /* Anchor node may have NULL predecessors */
 758                         assert(is_Anchor(irn));
 759                         fputs("-1 ", env->file);
 760                 } else {
 761                         write_long(env, get_irn_node_nr(pred));
 762                 }
 763         }
 764         write_list_end(env);
 765
 766         fputs("{ ", env->file);
 767
 768         switch (opcode) {
 769         case iro_Start:
 770         case iro_End:
 771         case iro_Block:
 772         case iro_Anchor:
 773                 break;
 774         case iro_SymConst:
 775                 /* TODO: only symconst_addr_ent implemented yet */
 776                 assert(get_SymConst_kind(irn) == symconst_addr_ent);
 777                 fprintf(env->file, "%ld ", get_entity_nr(get_SymConst_entity(irn)));
 778                 break;
 779         case iro_Proj:
 780                 write_mode(env, get_irn_mode(irn));
 781                 fprintf(env->file, "%ld ", get_Proj_proj(irn));
 782                 break;
 783         case iro_ASM:
 784                 export_ASM(env, irn);
 785                 break;
 786 #include "gen_irio_export.inl"
 787         default:
 788                 panic("no export code for node %+F\n", irn);
 789         }
 790         fputs("}\n", env->file);
 791 }
 792
 793 static const char *get_mode_sort_name(ir_mode_sort sort)
 794 {
 795         switch (sort) {
 796         case irms_auxiliary:        return "auxiliary";
 797         case irms_control_flow:     return "control_flow";
 798         case irms_memory:           return "memory";
 799         case irms_internal_boolean: return "internal_boolean";
 800         case irms_reference:        return "reference";
 801         case irms_int_number:       return "int_number";
 802         case irms_float_number:     return "float_number";
 803         }
 804         panic("invalid mode sort found");
 805 }
 806
 807 static void export_modes(io_env_t *env)
 808 {
 809         size_t i, n_modes = get_irp_n_modes();
 810
 811         fputs("modes {\n", env->file);
 812
 813         for (i = 0; i < n_modes; i++) {
 814                 ir_mode *mode = get_irp_mode(i);
 815                 switch (get_mode_sort(mode)) {
 816                 case irms_auxiliary:
 817                 case irms_control_flow:
 818                 case irms_memory:
 819                 case irms_internal_boolean:
 820                         /* skip "internal" modes, which may not be user defined */
 821                         continue;
 822                 default:
 823                         break;
 824                 }
 825
 826                 fprintf(env->file, "\tmode ");
 827                 write_string(env, get_mode_name(mode));
 828                 fprintf(env->file, "%s %u %d %s %u %u ",
 829                         get_mode_sort_name(get_mode_sort(mode)),
 830                         get_mode_size_bits(mode), get_mode_sign(mode),
 831                         get_mode_arithmetic_name(get_mode_arithmetic(mode)),
 832                         get_mode_modulo_shift(mode),
 833                         get_mode_n_vector_elems(mode));
 834                 if (mode_is_reference(mode)) {
 835                         write_mode(env, get_reference_mode_signed_eq(mode));
 836                         write_mode(env, get_reference_mode_unsigned_eq(mode));
 837                 }
 838                 fputc('\n', env->file);
 839         }
 840
 841         fputs("}\n", env->file);
 842 }
 843
 844 static void export_program(io_env_t *env)
 845 {
 846         FILE         *f = env->file;
 847         ir_segment_t  s;
 848
 849         fputs("\nprogram {\n", f);
 850         if (irp_prog_name_is_set()) {
 851                 fprintf(f, "\tname ");
 852                 write_string(env, get_irp_name());
 853                 fputc('\n', f);
 854         }
 855
 856         for (s = IR_SEGMENT_FIRST; s <= IR_SEGMENT_LAST; ++s) {
 857                 ir_type *segment_type = get_segment_type(s);
 858                 fprintf(f, "\tsegment_type %s ", get_segment_name(s));
 859                 if (segment_type == NULL) {
 860                         fputs(" NULL\n", f);
 861                 } else {
 862                         write_long(env, get_type_nr(segment_type));
 863                         fputc('\n', f);
 864                 }
 865         }
 866         fputs("}\n", f);
 867 }
 868
 869 void ir_export(const char *filename)
 870 {
 871         FILE *file = fopen(filename, "wt");
 872         if (file == NULL) {
 873                 perror(filename);
 874                 return;
 875         }
 876
 877         ir_export_file(file, filename);
 878         fclose(file);
 879 }
 880
 881 /* Exports the whole irp to the given file in a textual form. */
 882 void ir_export_file(FILE *file, const char *outputname)
 883 {
 884         io_env_t env;
 885         size_t i, n_irgs = get_irp_n_irgs();
 886
 887         (void) outputname;
 888         env.file = file;
 889
 890         export_modes(&env);
 891
 892         fputs("\ntypegraph {\n", env.file);
 893         type_walk_prog(export_type_or_ent_pre, export_type_or_ent_post, &env);
 894         fputs("}\n", env.file);
 895
 896         for (i = 0; i < n_irgs; i++) {
 897                 ir_graph *irg       = get_irp_irg(i);
 898                 ir_type  *valuetype = get_irg_value_param_type(irg);
 899
 900                 fprintf(env.file, "\nirg %ld %ld %ld {\n",
 901                         get_entity_nr(get_irg_entity(irg)),
 902                         get_type_nr(get_irg_frame_type(irg)),
 903                         valuetype == NULL ? -1 : get_type_nr(valuetype));
 904
 905                 env.ignoreblocks = 0;
 906                 irg_block_walk_graph(irg, NULL, export_node, &env);
 907
 908                 env.ignoreblocks = 1;
 909                 irg_walk_anchors(irg, NULL, export_node, &env);
 910
 911                 fputs("}\n", env.file);
 912         }
 913
 914         fprintf(env.file, "\nconstirg %ld {\n", get_irn_node_nr(get_const_code_irg()->current_block));
 915
 916         walk_const_code(NULL, export_node, &env);
 917         fputs("}\n", env.file);
 918
 919         export_program(&env);
 920 }
 921
 922 /* Exports the given irg to the given file. */
 923 void ir_export_irg(ir_graph *irg, FILE *file, const char *outputname)
 924 {
 925         io_env_t env;
 926
 927         (void) outputname;
 928         env.file = file;
 929
 930         export_modes(&env);
 931
 932         fputs("typegraph {\n", env.file);
 933
 934         type_walk_irg(irg, export_type_or_ent_pre, export_type_or_ent_post, &env);
 935
 936         fprintf(env.file, "}\n\nirg %ld {\n", get_entity_nr(get_irg_entity(irg)));
 937
 938         env.ignoreblocks = 0;
 939         irg_block_walk_graph(irg, NULL, export_node, &env);
 940
 941         env.ignoreblocks = 1;
 942         irg_walk_anchors(irg, NULL, export_node, &env);
 943
 944         /* TODO: Only output needed constants */
 945         fprintf(env.file, "}\n\nconstirg %ld {\n", get_irn_node_nr(get_const_code_irg()->current_block));
 946         walk_const_code(NULL, export_node, &env);
 947         fputs("}\n", env.file);
 948 }
 949
 950 static void read_c(io_env_t *env)
 951 {
 952         int c = fgetc(env->file);
 953         env->c = c;
 954         if (c == '\n')
 955                 env->line++;
 956 }
 957
 958 /** Returns the first non-whitespace character or EOF. **/
 959 static void skip_ws(io_env_t *env)
 960 {
 961         while (true) {
 962                 switch (env->c) {
 963                 case ' ':
 964                 case '\t':
 965                 case '\n':
 966                 case '\r':
 967                         read_c(env);
 968                         continue;
 969
 970                 default:
 971                         return;
 972                 }
 973         }
 974 }
 975
 976 static void skip_to(io_env_t *env, char to_ch)
 977 {
 978         while (env->c != to_ch && env->c != EOF) {
 979                 read_c(env);
 980         }
 981 }
 982
 983 static int expect_char(io_env_t *env, char ch)
 984 {
 985         skip_ws(env);
 986         if (env->c != ch) {
 987                 parse_error(env, "Unexpected char '%c', expected '%c'\n",
 988                             env->c, ch);
 989                 return 0;
 990         }
 991         read_c(env);
 992         return 1;
 993 }
 994
 995 #define EXPECT(c) if (expect_char(env, (c))) {} else return 0
 996
 997 static char *read_word(io_env_t *env)
 998 {
 999         skip_ws(env);
1000
1001         assert(obstack_object_size(&env->obst) == 0);
1002         while (true) {
1003                 int c = env->c;
1004                 switch (c) {
1005                 case EOF:
1006                 case ' ':
1007                 case '\t':
1008                 case '\n':
1009                 case '\r':
1010                         goto endofword;
1011
1012                 default:
1013                         obstack_1grow(&env->obst, c);
1014                         break;
1015                 }
1016                 read_c(env);
1017         }
1018
1019 endofword:
1020         obstack_1grow(&env->obst, '\0');
1021         return (char*)obstack_finish(&env->obst);
1022 }
1023
1024 static char *read_string(io_env_t *env)
1025 {
1026         skip_ws(env);
1027         if (env->c != '"') {
1028                 parse_error(env, "Expected string, got '%c'\n", env->c);
1029                 exit(1);
1030         }
1031         read_c(env);
1032
1033         assert(obstack_object_size(&env->obst) == 0);
1034         while (env->c != '"') {
1035                 if (env->c == EOF) {
1036                         parse_error(env, "Unexpected EOF while parsing string\n");
1037                         exit(1);
1038                 }
1039
1040                 if (env->c == '\\') {
1041                         read_c(env);
1042                         switch (env->c) {
1043                         case 'n':
1044                                 obstack_1grow(&env->obst, '\n');
1045                                 break;
1046                         case '"':
1047                         case '\\':
1048                                 obstack_1grow(&env->obst, env->c);
1049                                 break;
1050                         default:
1051                                 parse_error(env, "Unknown escape sequence '\\%c'\n", env->c);
1052                                 exit(1);
1053                         }
1054                 } else {
1055                         obstack_1grow(&env->obst, env->c);
1056                 }
1057                 read_c(env);
1058         }
1059         read_c(env);
1060         obstack_1grow(&env->obst, 0);
1061
1062         return (char*)obstack_finish(&env->obst);
1063 }
1064
1065 static ident *read_ident(io_env_t *env)
1066 {
1067         char  *str = read_string(env);
1068         ident *res = new_id_from_str(str);
1069         obstack_free(&env->obst, str);
1070         return res;
1071 }
1072
1073 /*
1074  * reads a "quoted string" or alternatively the token NULL
1075  */
1076 static char *read_string_null(io_env_t *env)
1077 {
1078         skip_ws(env);
1079         if (env->c == 'N') {
1080                 char *str = read_word(env);
1081                 if (strcmp(str, "NULL") == 0) {
1082                         obstack_free(&env->obst, str);
1083                         return NULL;
1084                 }
1085         } else if (env->c == '"') {
1086                 return read_string(env);
1087         }
1088
1089         parse_error(env, "Expected \"string\" or NULL\n");
1090         exit(1);
1091 }
1092
1093 static ident *read_ident_null(io_env_t *env)
1094 {
1095         ident *res;
1096         char  *str = read_string_null(env);
1097         if (str == NULL)
1098                 return NULL;
1099
1100         res = new_id_from_str(str);
1101         obstack_free(&env->obst, str);
1102         return res;
1103 }
1104
1105 static long read_long(io_env_t *env)
1106 {
1107         long  result;
1108         char *str;
1109
1110         skip_ws(env);
1111         if (!isdigit(env->c) && env->c != '-') {
1112                 parse_error(env, "Expected number, got '%c'\n", env->c);
1113                 exit(1);
1114         }
1115
1116         assert(obstack_object_size(&env->obst) == 0);
1117         do {
1118                 obstack_1grow(&env->obst, env->c);
1119                 read_c(env);
1120         } while (isdigit(env->c));
1121         obstack_1grow(&env->obst, 0);
1122
1123         str = (char*)obstack_finish(&env->obst);
1124         result = atol(str);
1125         obstack_free(&env->obst, str);
1126
1127         return result;
1128 }
1129
1130 static int read_int(io_env_t *env)
1131 {
1132         return (int) read_long(env);
1133 }
1134
1135 static unsigned read_unsigned(io_env_t *env)
1136 {
1137         return (unsigned) read_long(env);
1138 }
1139
1140 static size_t read_size_t(io_env_t *env)
1141 {
1142         /* FIXME */
1143         return (size_t) read_unsigned(env);
1144 }
1145
1146 static void expect_list_begin(io_env_t *env)
1147 {
1148         skip_ws(env);
1149         if (env->c != '[') {
1150                 parse_error(env, "Expected list, got '%c'\n", env->c);
1151                 exit(1);
1152         }
1153         read_c(env);
1154 }
1155
1156 static bool list_has_next(io_env_t *env)
1157 {
1158         if (feof(env->file)) {
1159                 parse_error(env, "Unexpected EOF while reading list");
1160                 exit(1);
1161         }
1162         skip_ws(env);
1163         if (env->c == ']') {
1164                 read_c(env);
1165                 return false;
1166         }
1167
1168         return true;
1169 }
1170
1171 static ir_node *get_node_or_null(io_env_t *env, long nodenr)
1172 {
1173         ir_node *node = (ir_node *) get_id(env, nodenr);
1174         if (node && node->kind != k_ir_node) {
1175                 panic("Irn ID %ld collides with something else in line %d\n",
1176                       nodenr, env->line);
1177         }
1178         return node;
1179 }
1180
1181 static ir_node *get_node_or_dummy(io_env_t *env, long nodenr)
1182 {
1183         ir_node *node = get_node_or_null(env, nodenr);
1184         if (node == NULL) {
1185                 node = new_r_Dummy(env->irg, mode_X);
1186                 set_id(env, nodenr, node);
1187         }
1188         return node;
1189 }
1190
1191 static ir_type *get_type(io_env_t *env, long typenr)
1192 {
1193         ir_type *type = (ir_type *) get_id(env, typenr);
1194         if (type == NULL)
1195                 panic("unknown type: %ld in line %d\n", typenr, env->line);
1196         else if (type->kind != k_type)
1197                 panic("type ID %ld collides with something else in line %d\n",
1198                       typenr, env->line);
1199         return type;
1200 }
1201
1202 static ir_type *read_type(io_env_t *env)
1203 {
1204         return get_type(env, read_long(env));
1205 }
1206
1207 static ir_entity *get_entity(io_env_t *env, long entnr)
1208 {
1209         ir_entity *entity = (ir_entity *) get_id(env, entnr);
1210         if (entity == NULL) {
1211                 parse_error(env, "unknown entity: %ld\n", entnr);
1212                 exit(1);
1213         } else if (entity->kind != k_entity) {
1214                 panic("Entity ID %ld collides with something else in line %d\n",
1215                       entnr, env->line);
1216         }
1217
1218         return entity;
1219 }
1220
1221 static ir_entity *read_entity(io_env_t *env)
1222 {
1223         return get_entity(env, read_long(env));
1224 }
1225
1226 static ir_mode *read_mode(io_env_t *env)
1227 {
1228         char *str = read_word(env);
1229         size_t i, n;
1230
1231         n = get_irp_n_modes();
1232         for (i = 0; i < n; i++) {
1233                 ir_mode *mode = get_irp_mode(i);
1234                 if (strcmp(str, get_mode_name(mode)) == 0) {
1235                         obstack_free(&env->obst, str);
1236                         return mode;
1237                 }
1238         }
1239
1240         parse_error(env, "unknown mode \"%s\"\n", str);
1241         exit(1);
1242 }
1243
1244 static const char *get_typetag_name(typetag_t typetag)
1245 {
1246         switch (typetag) {
1247         case tt_align:              return "align";
1248         case tt_allocation:         return "allocation";
1249         case tt_builtin:            return "builtin kind";
1250         case tt_cond_jmp_predicate: return "cond_jmp_predicate";
1251         case tt_initializer:        return "initializer kind";
1252         case tt_iro:                return "opcode";
1253         case tt_keyword:            return "keyword";
1254         case tt_linkage:            return "linkage";
1255         case tt_mode_arithmetic:    return "mode_arithmetic";
1256         case tt_mode_sort:          return "mode_sort";
1257         case tt_pin_state:          return "pin state";
1258         case tt_segment:            return "segment";
1259         case tt_tpo:                return "type";
1260         case tt_type_state:         return "type state";
1261         case tt_volatility:         return "volatility";
1262         case tt_visibility:         return "visibility";
1263         }
1264         return "<UNKNOWN>";
1265 }
1266
1267 /**
1268  * Read and decode an enum constant.
1269  */
1270 static unsigned read_enum(io_env_t *env, typetag_t typetag)
1271 {
1272         char     *str  = read_word(env);
1273         unsigned  code = symbol(str, typetag);
1274
1275         if (code != SYMERROR) {
1276                 obstack_free(&env->obst, str);
1277                 return code;
1278         }
1279
1280         parse_error(env, "invalid %s: \"%s\"\n", get_typetag_name(typetag), str);
1281         return 0;
1282 }
1283
1284 #define read_align(env)              ((ir_align)              read_enum(env, tt_align))
1285 #define read_allocation(env)         ((ir_allocation)         read_enum(env, tt_allocation))
1286 #define read_builtin_kind(env)       ((ir_builtin_kind)       read_enum(env, tt_builtin))
1287 #define read_cond_jmp_predicate(env) ((cond_jmp_predicate)    read_enum(env, tt_cond_jmp_predicate))
1288 #define read_initializer_kind(env)   ((ir_initializer_kind_t) read_enum(env, tt_initializer))
1289 #define read_mode_arithmetic(env)    ((ir_mode_arithmetic)    read_enum(env, tt_mode_arithmetic))
1290 #define read_peculiarity(env)        ((ir_peculiarity)        read_enum(env, tt_peculiarity))
1291 #define read_pin_state(env)          ((op_pin_state)          read_enum(env, tt_pin_state))
1292 #define read_type_state(env)         ((ir_type_state)         read_enum(env, tt_type_state))
1293 #define read_variability(env)        ((ir_variability)        read_enum(env, tt_variability))
1294 #define read_volatility(env)         ((ir_volatility)         read_enum(env, tt_volatility))
1295
1296 static ir_cons_flags get_cons_flags(io_env_t *env)
1297 {
1298         ir_cons_flags flags = cons_none;
1299
1300         op_pin_state pinstate = read_pin_state(env);
1301         switch (pinstate) {
1302         case op_pin_state_floats: flags |= cons_floats; break;
1303         case op_pin_state_pinned: break;
1304         default:
1305                 panic("Error in %d: Invalid pinstate: %s", env->line,
1306                       get_op_pin_state_name(pinstate));
1307         }
1308
1309         if (read_volatility(env) == volatility_is_volatile)
1310                 flags |= cons_volatile;
1311         if (read_align(env) == align_non_aligned)
1312                 flags |= cons_unaligned;
1313
1314         return flags;
1315 }
1316
1317 static ir_tarval *read_tv(io_env_t *env)
1318 {
1319         ir_mode   *tvmode = read_mode(env);
1320         char      *str    = read_word(env);
1321         ir_tarval *tv     = new_tarval_from_str(str, strlen(str), tvmode);
1322         obstack_free(&env->obst, str);
1323
1324         return tv;
1325 }
1326
1327 static ir_initializer_t *read_initializer(io_env_t *env)
1328 {
1329         ir_initializer_kind_t ini_kind = read_initializer_kind(env);
1330
1331         switch (ini_kind) {
1332         case IR_INITIALIZER_CONST: {
1333                 ir_node *irn = get_node_or_dummy(env, read_long(env));
1334                 return create_initializer_const(irn);
1335         }
1336
1337         case IR_INITIALIZER_TARVAL:
1338                 return create_initializer_tarval(read_tv(env));
1339
1340         case IR_INITIALIZER_NULL:
1341                 return get_initializer_null();
1342
1343         case IR_INITIALIZER_COMPOUND: {
1344                 size_t i, n = read_size_t(env);
1345                 ir_initializer_t *ini = create_initializer_compound(n);
1346                 for (i = 0; i < n; i++) {
1347                         ir_initializer_t *curini = read_initializer(env);
1348                         set_initializer_compound_value(ini, i, curini);
1349                 }
1350                 return ini;
1351         }
1352
1353         default:
1354                 panic("Unknown initializer kind");
1355         }
1356 }
1357
1358
1359 /** Reads a type description and remembers it by its id. */
1360 static void import_type(io_env_t *env)
1361 {
1362         int            i;
1363         ir_type       *type;
1364         long           typenr = read_long(env);
1365         tp_opcode      tpop   = (tp_opcode) read_enum(env, tt_tpo);
1366         unsigned       size   = (unsigned) read_long(env);
1367         unsigned       align  = (unsigned) read_long(env);
1368         ir_type_state  state  = read_type_state(env);
1369         unsigned       flags  = (unsigned) read_long(env);
1370
1371         switch (tpop) {
1372         case tpo_array: {
1373                 int ndims = (int) read_long(env);
1374                 long elemtypenr = read_long(env);
1375                 ir_type *elemtype = get_type(env, elemtypenr);
1376
1377                 type = new_type_array(ndims, elemtype);
1378                 for (i = 0; i < ndims; i++) {
1379                         char *str = read_word(env);
1380                         if (strcmp(str, "unknown") != 0) {
1381                                 long lowerbound = atol(str);
1382                                 set_array_lower_bound_int(type, i, lowerbound);
1383                         }
1384                         obstack_free(&env->obst, str);
1385
1386                         str = read_word(env);
1387                         if (strcmp(str, "unknown") != 0) {
1388                                 long upperbound = atol(str);
1389                                 set_array_upper_bound_int(type, i, upperbound);
1390                         }
1391                         obstack_free(&env->obst, str);
1392                 }
1393                 set_type_size_bytes(type, size);
1394                 break;
1395         }
1396
1397         case tpo_class: {
1398                 ident *id = read_ident_null(env);
1399
1400                 if (typenr == (long) IR_SEGMENT_GLOBAL)
1401                         type = get_glob_type();
1402                 else
1403                         type = new_type_class(id);
1404                 set_type_size_bytes(type, size);
1405                 break;
1406         }
1407
1408         case tpo_method: {
1409                 unsigned                  callingconv = (unsigned) read_long(env);
1410                 mtp_additional_properties addprops    = (mtp_additional_properties) read_long(env);
1411                 int nparams          = (int)      read_long(env);
1412                 int nresults         = (int)      read_long(env);
1413                 int variadicity;
1414
1415                 type = new_type_method(nparams, nresults);
1416
1417                 for (i = 0; i < nparams; i++) {
1418                         long ptypenr = read_long(env);
1419                         ir_type *paramtype = get_type(env, ptypenr);
1420
1421                         set_method_param_type(type, i, paramtype);
1422                 }
1423                 for (i = 0; i < nresults; i++) {
1424                         long ptypenr = read_long(env);
1425                         ir_type *restype = get_type(env, ptypenr);
1426
1427                         set_method_res_type(type, i, restype);
1428                 }
1429
1430                 variadicity = (int) read_long(env);
1431                 set_method_variadicity(type, variadicity);
1432
1433                 set_method_calling_convention(type, callingconv);
1434                 set_method_additional_properties(type, addprops);
1435                 break;
1436         }
1437
1438         case tpo_pointer: {
1439                 ir_mode *mode     = read_mode(env);
1440                 ir_type *pointsto = get_type(env, read_long(env));
1441                 type = new_type_pointer(pointsto);
1442                 set_type_mode(type, mode);
1443                 break;
1444         }
1445
1446         case tpo_primitive: {
1447                 ir_mode *mode = read_mode(env);
1448                 type = new_type_primitive(mode);
1449                 break;
1450         }
1451
1452         case tpo_struct: {
1453                 ident *id = read_ident_null(env);
1454                 type = new_type_struct(id);
1455                 set_type_size_bytes(type, size);
1456                 break;
1457         }
1458
1459         case tpo_union: {
1460                 ident *id = read_ident_null(env);
1461                 type = new_type_union(id);
1462                 set_type_size_bytes(type, size);
1463                 break;
1464         }
1465
1466         case tpo_unknown:
1467                 return;   /* ignore unknown type */
1468
1469         default:
1470                 parse_error(env, "unknown type kind: \"%d\"\n", tpop);
1471                 skip_to(env, '\n');
1472                 return;
1473         }
1474
1475         set_type_alignment_bytes(type, align);
1476         type->flags = flags;
1477
1478         if (state == layout_fixed)
1479                 ARR_APP1(ir_type *, env->fixedtypes, type);
1480
1481         set_id(env, typenr, type);
1482 }
1483
1484 /** Reads an entity description and remembers it by its id. */
1485 static void import_entity(io_env_t *env)
1486 {
1487         long           entnr      = read_long(env);
1488         ident         *name       = read_ident(env);
1489         ident         *ld_name    = read_ident_null(env);
1490         ir_visibility  visibility = ir_visibility_default;
1491         ir_linkage     linkage    = IR_LINKAGE_DEFAULT;
1492         long           typenr;
1493         long           ownertypenr;
1494         const char    *str;
1495         ir_type       *type;
1496         ir_type       *ownertype;
1497         ir_entity     *entity;
1498
1499         skip_ws(env);
1500         while (!isdigit(env->c)) {
1501                 char     *vstr = read_word(env);
1502                 unsigned  v;
1503
1504                 skip_ws(env);
1505
1506                 v = symbol(vstr, tt_visibility);
1507                 if (v != SYMERROR) {
1508                         visibility = (ir_visibility)v;
1509                         continue;
1510                 }
1511                 v = symbol(vstr, tt_linkage);
1512                 if (v != SYMERROR) {
1513                         linkage |= (ir_linkage)v;
1514                         continue;
1515                 }
1516                 printf("Parser error, expected visibility or linkage, got '%s'\n",
1517                        vstr);
1518                 break;
1519         }
1520
1521         typenr      = read_long(env);
1522         ownertypenr = read_long(env);
1523
1524         type      = get_type(env, typenr);
1525         ownertype = !ownertypenr ? get_glob_type() : get_type(env, ownertypenr);
1526         entity    = new_entity(ownertype, name, type);
1527
1528         if (ld_name != NULL)
1529                 set_entity_ld_ident(entity, ld_name);
1530         set_entity_offset(entity, (int) read_long(env));
1531         set_entity_offset_bits_remainder(entity, (unsigned char) read_long(env));
1532         set_entity_compiler_generated(entity, (int) read_long(env));
1533         set_entity_volatility(entity, read_volatility(env));
1534         set_entity_visibility(entity, visibility);
1535         set_entity_linkage(entity, linkage);
1536
1537         str = read_word(env);
1538         if (strcmp(str, "initializer") == 0) {
1539                 set_entity_initializer(entity, read_initializer(env));
1540         } else if (strcmp(str, "compoundgraph") == 0) {
1541                 int n = (int) read_long(env);
1542                 int i;
1543                 for (i = 0; i < n; i++) {
1544                         ir_entity *member = get_entity(env, read_long(env));
1545                         ir_node   *irn    = get_node_or_dummy(env, read_long(env));
1546                         add_compound_ent_value(entity, irn, member);
1547                 }
1548         } else if (strcmp(str, "none") == 0) {
1549                 /* do nothing */
1550         } else {
1551                 parse_error(env, "expected 'initializer', 'compoundgraph' or 'none' got '%s'\n", str);
1552                 exit(1);
1553         }
1554
1555         set_id(env, entnr, entity);
1556 }
1557
1558 /** Parses the whole type graph. */
1559 static int parse_typegraph(io_env_t *env)
1560 {
1561         ir_graph *old_irg = env->irg;
1562         keyword_t kwkind;
1563
1564         EXPECT('{');
1565
1566         env->irg = get_const_code_irg();
1567
1568         /* parse all types first */
1569         while (true) {
1570                 skip_ws(env);
1571                 if (env->c == '}') {
1572                         read_c(env);
1573                         break;
1574                 }
1575
1576                 kwkind = (keyword_t) read_enum(env, tt_keyword);
1577                 switch (kwkind) {
1578                 case kw_type:
1579                         import_type(env);
1580                         break;
1581
1582                 case kw_entity:
1583                         import_entity(env);
1584                         break;
1585
1586                 default:
1587                         parse_error(env, "type graph element not supported yet: %d\n", kwkind);
1588                         skip_to(env, '\n');
1589                         break;
1590                 }
1591         }
1592         env->irg = old_irg;
1593         return 1;
1594 }
1595
1596 static int read_node_header(io_env_t *env, long *nodenr, ir_node ***preds,
1597                             const char **nodename)
1598 {
1599         int numpreds;
1600
1601         *nodename = read_word(env);
1602         *nodenr   = read_long(env);
1603
1604         ARR_RESIZE(ir_node*, *preds, 0);
1605
1606         expect_list_begin(env);
1607         for (numpreds = 0; list_has_next(env); numpreds++) {
1608                 long     val  = read_long(env);
1609                 ir_node *pred = get_node_or_dummy(env, val);
1610                 ARR_APP1(ir_node*, *preds, pred);
1611         }
1612
1613         return numpreds;
1614 }
1615
1616 static ir_node *read_ASM(io_env_t *env, int numpreds, ir_node **preds)
1617 {
1618         ir_node *newnode;
1619         ir_asm_constraint *input_constraints  = NEW_ARR_F(ir_asm_constraint, 0);
1620         ir_asm_constraint *output_constraints = NEW_ARR_F(ir_asm_constraint, 0);
1621         ident            **clobbers           = NEW_ARR_F(ident*, 0);
1622
1623         ident *asm_text = read_ident(env);
1624
1625         expect_list_begin(env);
1626         while (list_has_next(env)) {
1627                 ir_asm_constraint constraint;
1628                 constraint.pos        = read_unsigned(env);
1629                 constraint.constraint = read_ident(env);
1630                 constraint.mode       = read_mode(env);
1631                 ARR_APP1(ir_asm_constraint, input_constraints, constraint);
1632         }
1633
1634         expect_list_begin(env);
1635         while (list_has_next(env)) {
1636                 ir_asm_constraint constraint;
1637                 constraint.pos        = read_unsigned(env);
1638                 constraint.constraint = read_ident(env);
1639                 constraint.mode       = read_mode(env);
1640                 ARR_APP1(ir_asm_constraint, output_constraints, constraint);
1641         }
1642
1643         expect_list_begin(env);
1644         while (list_has_next(env)) {
1645                 ident *clobber = read_ident(env);
1646                 ARR_APP1(ident*, clobbers, clobber);
1647         }
1648
1649         assert(ARR_LEN(input_constraints) == (size_t)numpreds-1);
1650
1651         newnode = new_r_ASM(preds[0], numpreds-1, preds+1,
1652                         input_constraints,
1653                         ARR_LEN(output_constraints),
1654                         output_constraints,
1655                         ARR_LEN(clobbers),
1656                         clobbers,
1657                         asm_text);
1658         DEL_ARR_F(clobbers);
1659         DEL_ARR_F(output_constraints);
1660         DEL_ARR_F(input_constraints);
1661         return newnode;
1662 }
1663
1664 /** Parses an IRG. */
1665 static int parse_graph(io_env_t *env, ir_graph *irg)
1666 {
1667         ir_node   **preds = NEW_ARR_F(ir_node*,0);
1668         int         i, numpreds, ret = 1;
1669         long        nodenr;
1670         const char *nodename;
1671         ir_node    *node, *newnode;
1672
1673         env->irg = irg;
1674
1675         EXPECT('{');
1676
1677         while (true) {
1678                 skip_ws(env);
1679                 if (env->c == '}') {
1680                         read_c(env);
1681                         break;
1682                 }
1683
1684                 numpreds = read_node_header(env, &nodenr, &preds, &nodename);
1685
1686                 node = get_node_or_null(env, nodenr);
1687                 newnode = NULL;
1688
1689                 EXPECT('{');
1690
1691                 switch (symbol(nodename, tt_iro)) {
1692                 case iro_End: {
1693                         ir_node *newendblock = preds[0];
1694                         newnode = get_irg_end(irg);
1695                         exchange(get_nodes_block(newnode), newendblock);
1696                         for (i = 1; i < numpreds; i++)
1697                                 add_irn_n(newnode, preds[i]);
1698                         break;
1699                 }
1700
1701                 case iro_Start: {
1702                         ir_node *newstartblock = preds[0];
1703                         newnode = get_irg_start(irg);
1704                         exchange(get_nodes_block(newnode), newstartblock);
1705                         break;
1706                 }
1707
1708                 case iro_Block:
1709                         newnode = new_r_Block(irg, numpreds, preds);
1710                         break;
1711
1712                 case iro_Anchor:
1713                         newnode = irg->anchor;
1714                         for (i = 1; i < numpreds; i++)
1715                                 set_irn_n(newnode, i-1, preds[i]);
1716                         set_nodes_block(newnode, preds[0]);
1717                         break;
1718
1719                 case iro_SymConst: {
1720                         long entnr = read_long(env);
1721                         union symconst_symbol sym;
1722                         sym.entity_p = get_entity(env, entnr);
1723                         newnode = new_r_SymConst(irg, mode_P, sym, symconst_addr_ent);
1724                         break;
1725                 }
1726
1727                 case iro_Proj: {
1728                         ir_mode *mode = read_mode(env);
1729                         long     pn   = read_long(env);
1730                         newnode = new_r_Proj(preds[1], mode, pn);
1731                         /* explicitely set block, since preds[1] might be a dummy node
1732                          * which is always in the startblock */
1733                         set_nodes_block(newnode, preds[0]);
1734                         break;
1735                 }
1736
1737                 case iro_ASM:
1738                         newnode = read_ASM(env, numpreds, preds);
1739                         break;
1740
1741                 #include "gen_irio_import.inl"
1742
1743                 default:
1744                         goto notsupported;
1745                 }
1746
1747                 EXPECT('}');
1748
1749                 if (!newnode) {
1750 notsupported:
1751                         parse_error(env, "node type not supported yet: %s\n", nodename);
1752                         abort();
1753                 }
1754
1755                 if (node)
1756                         exchange(node, newnode);
1757                 /* Always update hash entry to avoid more uses of id nodes */
1758                 set_id(env, nodenr, newnode);
1759         }
1760
1761         DEL_ARR_F(preds);
1762
1763         return ret;
1764 }
1765
1766 static int parse_modes(io_env_t *env)
1767 {
1768         EXPECT('{');
1769
1770         while (true) {
1771                 keyword_t kwkind;
1772
1773                 skip_ws(env);
1774                 if (env->c == '}') {
1775                         read_c(env);
1776                         break;
1777                 }
1778
1779                 kwkind = (keyword_t) read_enum(env, tt_keyword);
1780                 switch (kwkind) {
1781                 case kw_mode: {
1782                         const char *name = read_string(env);
1783                         ir_mode_sort sort = (ir_mode_sort)read_enum(env, tt_mode_sort);
1784                         int size = read_long(env);
1785                         int sign = read_long(env);
1786                         ir_mode_arithmetic arith = read_mode_arithmetic(env);
1787                         unsigned modulo_shift = read_long(env);
1788                         int vector_elems = read_long(env);
1789                         ir_mode *mode;
1790
1791                         if (vector_elems != 1) {
1792                                 panic("no support for import of vector modes yes");
1793                         }
1794
1795                         mode = new_ir_mode(name, sort, size, sign, arith, modulo_shift);
1796                         if (mode_is_reference(mode)) {
1797                                 set_reference_mode_signed_eq(mode, read_mode(env));
1798                                 set_reference_mode_unsigned_eq(mode, read_mode(env));
1799                         }
1800                         break;
1801                 }
1802
1803                 default:
1804                         skip_to(env, '\n');
1805                         break;
1806                 }
1807         }
1808         return 1;
1809 }
1810
1811 static int parse_program(io_env_t *env)
1812 {
1813         EXPECT('{');
1814
1815         while (true) {
1816                 keyword_t kwkind;
1817
1818                 skip_ws(env);
1819                 if (env->c == '}') {
1820                         read_c(env);
1821                         break;
1822                 }
1823
1824                 kwkind = (keyword_t) read_enum(env, tt_keyword);
1825                 switch (kwkind) {
1826                 case kw_segment_type: {
1827                         ir_segment_t  segment = (ir_segment_t) read_enum(env, tt_segment);
1828                         ir_type      *type    = read_type(env);
1829                         set_segment_type(segment, type);
1830                         break;
1831                 }
1832                 default:
1833                         parse_error(env, "unexpected keyword %d\n", kwkind);
1834                         skip_to(env, '\n');
1835                 }
1836         }
1837         return 1;
1838 }
1839
1840 void ir_import(const char *filename)
1841 {
1842         FILE *file = fopen(filename, "rt");
1843         if (file == NULL) {
1844                 perror(filename);
1845                 exit(1);
1846         }
1847
1848         ir_import_file(file, filename);
1849
1850         fclose(file);
1851 }
1852
1853 void ir_import_file(FILE *input, const char *inputname)
1854 {
1855         int oldoptimize = get_optimize();
1856         firm_verification_t oldver = get_node_verification_mode();
1857         io_env_t ioenv;
1858         io_env_t *env = &ioenv;
1859         size_t i, n;
1860
1861         symtbl_init();
1862
1863         memset(env, 0, sizeof(*env));
1864         obstack_init(&env->obst);
1865         env->idset      = new_set(id_cmp, 128);
1866         env->fixedtypes = NEW_ARR_F(ir_type *, 0);
1867         env->inputname  = inputname;
1868         env->file       = input;
1869         env->line       = 1;
1870
1871         /* read first character */
1872         read_c(env);
1873
1874         set_optimize(0);
1875         do_node_verification(FIRM_VERIFICATION_OFF);
1876
1877         while (true) {
1878                 keyword_t kw;
1879
1880                 skip_ws(env);
1881                 if (env->c == EOF)
1882                         break;
1883
1884                 kw = (keyword_t)read_enum(env, tt_keyword);
1885                 switch (kw) {
1886                 case kw_modes:
1887                         if (!parse_modes(env)) goto end;
1888                         break;
1889
1890                 case kw_typegraph:
1891                         if (!parse_typegraph(env)) goto end;
1892                         break;
1893
1894                 case kw_irg:
1895                 {
1896                         ir_entity *irgent = get_entity(env, read_long(env));
1897                         long valuetypeid;
1898                         ir_graph *irg = new_ir_graph(irgent, 0);
1899                         set_irg_frame_type(irg, get_type(env, read_long(env)));
1900                         valuetypeid = read_long(env);
1901                         if (valuetypeid != -1)
1902                                 set_method_value_param_type(get_entity_type(irgent),
1903                                                 get_type(env, valuetypeid));
1904
1905                         if (!parse_graph(env, irg)) goto end;
1906                         break;
1907                 }
1908
1909                 case kw_constirg: {
1910                         ir_graph *constirg = get_const_code_irg();
1911                         long bodyblockid = read_long(env);
1912                         set_id(env, bodyblockid, constirg->current_block);
1913                         if (!parse_graph(env, constirg)) goto end;
1914                         break;
1915                 }
1916
1917                 case kw_program:
1918                         parse_program(env);
1919                         break;
1920
1921                 default: {
1922                         parse_error(env, "Unexpected keyword %d at toplevel\n", kw);
1923                         exit(1);
1924                 }
1925                 }
1926         }
1927
1928 end:
1929         n = ARR_LEN(env->fixedtypes);
1930         for (i = 0; i < n; i++)
1931                 set_type_state(env->fixedtypes[i], layout_fixed);
1932
1933         DEL_ARR_F(env->fixedtypes);
1934
1935         del_set(env->idset);
1936
1937         irp_finalize_cons();
1938
1939         do_node_verification(oldver);
1940         set_optimize(oldoptimize);
1941
1942         obstack_free(&env->obst, NULL);
1943 }