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

   1 /*
   2  * Copyright (C) 1995-2009 University of Karlsruhe.  All right reserved.
   3  *
   4  * This file is part of libFirm.
   5  *
   6  * This file may be distributed and/or modified under the terms of the
   7  * GNU General Public License version 2 as published by the Free Software
   8  * Foundation and appearing in the file LICENSE.GPL included in the
   9  * packaging of this file.
  10  *
  11  * Licensees holding valid libFirm Professional Edition licenses may use
  12  * this file in accordance with the libFirm Commercial License.
  13  * Agreement provided with the Software.
  14  *
  15  * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
  16  * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  17  * PURPOSE.
  18  */
  19
  20 /**
  21  * @file
  22  * @brief   Write textual representation of firm to file.
  23  * @author  Moritz Kroll
  24  * @version $Id$
  25  */
  26 #include "config.h"
  27
  28 #include <string.h>
  29 #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 "ircons.h"
  39 #include "irgmod.h"
  40 #include "irflag_t.h"
  41 #include "irgwalk.h"
  42 #include "tv.h"
  43 #include "array.h"
  44 #include "error.h"
  45 #include "typerep.h"
  46 #include "adt/set.h"
  47 #include "adt/obst.h"
  48
  49 #define SYMERROR ((unsigned) ~0)
  50
  51 typedef struct io_env_t
  52 {
  53         int c;                /**< currently read char */
  54         FILE *file;
  55         set *idset;           /**< id_entry set, which maps from file ids to new Firm elements */
  56         int ignoreblocks;
  57         const char *inputname;
  58         int line;
  59         ir_type **fixedtypes;
  60         struct obstack obst;
  61 } io_env_t;
  62
  63 typedef enum typetag_t
  64 {
  65         tt_align,
  66         tt_allocation,
  67         tt_builtin,
  68         tt_cond_kind,
  69         tt_cond_jmp_predicate,
  70         tt_initializer,
  71         tt_iro,
  72         tt_keyword,
  73         tt_mode_sort,
  74         tt_mode_arithmetic,
  75         tt_peculiarity,
  76         tt_pin_state,
  77         tt_tpo,
  78         tt_type_state,
  79         tt_variability,
  80         tt_visibility,
  81         tt_volatility,
  82         tt_segment
  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         INSERTKEYWORD(constirg);
 198         INSERTKEYWORD(entity);
 199         INSERTKEYWORD(irg);
 200         INSERTKEYWORD(mode);
 201         INSERTKEYWORD(modes);
 202         INSERTKEYWORD(type);
 203         INSERTKEYWORD(typegraph);
 204         INSERTKEYWORD(program);
 205         INSERTKEYWORD(segment_type);
 206
 207 #include "gen_irio_lex.inl"
 208
 209         INSERTENUM(tt_align, align_non_aligned);
 210         INSERTENUM(tt_align, align_is_aligned);
 211
 212         INSERTENUM(tt_allocation, allocation_automatic);
 213         INSERTENUM(tt_allocation, allocation_parameter);
 214         INSERTENUM(tt_allocation, allocation_dynamic);
 215         INSERTENUM(tt_allocation, allocation_static);
 216
 217         INSERTENUM(tt_builtin, ir_bk_trap);
 218         INSERTENUM(tt_builtin, ir_bk_debugbreak);
 219         INSERTENUM(tt_builtin, ir_bk_return_address);
 220         INSERTENUM(tt_builtin, ir_bk_frame_address);
 221         INSERTENUM(tt_builtin, ir_bk_prefetch);
 222         INSERTENUM(tt_builtin, ir_bk_ffs);
 223         INSERTENUM(tt_builtin, ir_bk_clz);
 224         INSERTENUM(tt_builtin, ir_bk_ctz);
 225         INSERTENUM(tt_builtin, ir_bk_popcount);
 226         INSERTENUM(tt_builtin, ir_bk_parity);
 227         INSERTENUM(tt_builtin, ir_bk_bswap);
 228         INSERTENUM(tt_builtin, ir_bk_inport);
 229         INSERTENUM(tt_builtin, ir_bk_outport);
 230         INSERTENUM(tt_builtin, ir_bk_inner_trampoline);
 231
 232         INSERTENUM(tt_cond_kind, dense);
 233         INSERTENUM(tt_cond_kind, fragmentary);
 234
 235         INSERTENUM(tt_cond_jmp_predicate, COND_JMP_PRED_NONE);
 236         INSERTENUM(tt_cond_jmp_predicate, COND_JMP_PRED_TRUE);
 237         INSERTENUM(tt_cond_jmp_predicate, COND_JMP_PRED_FALSE);
 238
 239         INSERTENUM(tt_initializer, IR_INITIALIZER_CONST);
 240         INSERTENUM(tt_initializer, IR_INITIALIZER_TARVAL);
 241         INSERTENUM(tt_initializer, IR_INITIALIZER_NULL);
 242         INSERTENUM(tt_initializer, IR_INITIALIZER_COMPOUND);
 243
 244         INSERTENUM(tt_mode_arithmetic, irma_uninitialized);
 245         INSERTENUM(tt_mode_arithmetic, irma_none);
 246         INSERTENUM(tt_mode_arithmetic, irma_twos_complement);
 247         INSERTENUM(tt_mode_arithmetic, irma_ones_complement);
 248         INSERTENUM(tt_mode_arithmetic, irma_int_BCD);
 249         INSERTENUM(tt_mode_arithmetic, irma_ieee754);
 250         INSERTENUM(tt_mode_arithmetic, irma_float_BCD);
 251
 252         INSERTENUM(tt_peculiarity, peculiarity_description);
 253         INSERTENUM(tt_peculiarity, peculiarity_inherited);
 254         INSERTENUM(tt_peculiarity, peculiarity_existent);
 255
 256         INSERTENUM(tt_pin_state, op_pin_state_floats);
 257         INSERTENUM(tt_pin_state, op_pin_state_pinned);
 258         INSERTENUM(tt_pin_state, op_pin_state_exc_pinned);
 259         INSERTENUM(tt_pin_state, op_pin_state_mem_pinned);
 260
 261         INSERTENUM(tt_type_state, layout_undefined);
 262         INSERTENUM(tt_type_state, layout_fixed);
 263
 264         INSERTENUM(tt_variability, variability_uninitialized);
 265         INSERTENUM(tt_variability, variability_initialized);
 266         INSERTENUM(tt_variability, variability_part_constant);
 267         INSERTENUM(tt_variability, variability_constant);
 268
 269         INSERTENUM(tt_visibility, visibility_local);
 270         INSERTENUM(tt_visibility, visibility_external_visible);
 271         INSERTENUM(tt_visibility, visibility_external_allocated);
 272
 273         INSERTENUM(tt_volatility, volatility_non_volatile);
 274         INSERTENUM(tt_volatility, volatility_is_volatile);
 275
 276 #undef INSERTKEYWORD
 277 #undef INSERTENUM
 278 #undef INSERT
 279 }
 280
 281 static const char *get_segment_name(ir_segment_t segment)
 282 {
 283         switch (segment) {
 284         case IR_SEGMENT_GLOBAL:       return "global";
 285         case IR_SEGMENT_THREAD_LOCAL: return "thread_local";
 286         case IR_SEGMENT_CONSTRUCTORS: return "constructors";
 287         case IR_SEGMENT_DESTRUCTORS:  return "destructors";
 288         }
 289         return "INVALID_SEGMENT";
 290 }
 291
 292 /** Returns the according symbol value for the given string and tag, or SYMERROR if none was found. */
 293 static unsigned symbol(const char *str, typetag_t typetag)
 294 {
 295         symbol_t key, *entry;
 296
 297         key.str = str;
 298         key.typetag = typetag;
 299
 300         entry = set_find(symtbl, &key, sizeof(key), firm_fnv_hash_str(str) + typetag * 17);
 301         return entry ? entry->code : SYMERROR;
 302 }
 303
 304 static void *get_id(io_env_t *env, long id)
 305 {
 306         id_entry key, *entry;
 307         key.id = id;
 308
 309         entry = set_find(env->idset, &key, sizeof(key), (unsigned) id);
 310         return entry ? entry->elem : NULL;
 311 }
 312
 313 static void set_id(io_env_t *env, long id, void *elem)
 314 {
 315         id_entry key;
 316         key.id = id;
 317         key.elem = elem;
 318         set_insert(env->idset, &key, sizeof(key), (unsigned) id);
 319 }
 320
 321 static void write_mode(io_env_t *env, ir_mode *mode)
 322 {
 323         fputs(get_mode_name(mode), env->file);
 324         fputc(' ', env->file);
 325 }
 326
 327 static void write_tarval(io_env_t *env, tarval *tv)
 328 {
 329         char buf[1024];
 330         write_mode(env, get_tarval_mode(tv));
 331         tarval_snprintf(buf, sizeof(buf), tv);
 332         fputs(buf, env->file);
 333         fputc(' ', env->file);
 334 }
 335
 336 static void write_align(io_env_t *env, ir_node *irn)
 337 {
 338         ir_align align;
 339
 340         if (is_Load(irn))
 341                 align = get_Load_align(irn);
 342         else if (is_Store(irn))
 343                 align = get_Store_align(irn);
 344         else
 345                 panic("Invalid optype for write_align");
 346
 347         fputs(get_align_name(align), env->file);
 348         fputc(' ', env->file);
 349 }
 350
 351 static void write_builtin_kind(io_env_t *env, ir_node *irn)
 352 {
 353         fputs(get_builtin_kind_name(get_Builtin_kind(irn)), env->file);
 354         fputc(' ', env->file);
 355 }
 356
 357 static void write_cond_kind(io_env_t *env, ir_node *irn)
 358 {
 359         fputs(get_cond_kind_name(get_Cond_kind(irn)), env->file);
 360         fputc(' ', env->file);
 361 }
 362
 363 static void write_cond_jmp_predicate(io_env_t *env, ir_node *irn)
 364 {
 365         fputs(get_cond_jmp_predicate_name(get_Cond_jmp_pred(irn)), env->file);
 366         fputc(' ', env->file);
 367 }
 368
 369 static void write_initializer(io_env_t *env, ir_initializer_t *ini)
 370 {
 371         FILE *f = env->file;
 372         ir_initializer_kind_t ini_kind = get_initializer_kind(ini);
 373
 374         fputs(get_initializer_kind_name(ini_kind), f);
 375         fputc(' ', f);
 376
 377         switch (ini_kind) {
 378         case IR_INITIALIZER_CONST:
 379                 fprintf(f, "%ld ", get_irn_node_nr(get_initializer_const_value(ini)));
 380                 break;
 381
 382         case IR_INITIALIZER_TARVAL:
 383                 write_tarval(env, get_initializer_tarval_value(ini));
 384                 break;
 385
 386         case IR_INITIALIZER_NULL:
 387                 break;
 388
 389         case IR_INITIALIZER_COMPOUND: {
 390                 unsigned i, n = get_initializer_compound_n_entries(ini);
 391                 fprintf(f, "%d ", n);
 392                 for (i = 0; i < n; i++)
 393                         write_initializer(env, get_initializer_compound_value(ini, i));
 394                 break;
 395         }
 396
 397         default:
 398                 panic("Unknown initializer kind");
 399         }
 400 }
 401
 402 static void write_pin_state(io_env_t *env, ir_node *irn)
 403 {
 404         fputs(get_op_pin_state_name(get_irn_pinned(irn)), env->file);
 405         fputc(' ', env->file);
 406 }
 407
 408 static void write_volatility(io_env_t *env, ir_node *irn)
 409 {
 410         ir_volatility vol;
 411
 412         if (is_Load(irn))
 413                 vol = get_Load_volatility(irn);
 414         else if (is_Store(irn))
 415                 vol = get_Store_volatility(irn);
 416         else
 417                 panic("Invalid optype for write_volatility");
 418
 419         fputs(get_volatility_name(vol), env->file);
 420         fputc(' ', env->file);
 421 }
 422
 423 static void export_type_common(io_env_t *env, ir_type *tp)
 424 {
 425         fprintf(env->file, "\ttype %ld %s %u %u %s %s %d ",
 426                 get_type_nr(tp),
 427                 get_type_tpop_name(tp),
 428                 get_type_size_bytes(tp),
 429                 get_type_alignment_bytes(tp),
 430                 get_type_state_name(get_type_state(tp)),
 431                 get_visibility_name(get_type_visibility(tp)),
 432                 tp->flags);
 433 }
 434
 435 static void export_compound_name(FILE *f, const ir_type *tp)
 436 {
 437         ident *name = get_compound_ident(tp);
 438         if (name == NULL) {
 439                 fputs("NULL ", f);
 440         } else {
 441                 fprintf(f, "\"%s\" ", get_id_str(name));
 442         }
 443 }
 444
 445 static void export_type_pre(io_env_t *env, ir_type *tp)
 446 {
 447         FILE *f = env->file;
 448
 449         /* skip types to be handled by post walker */
 450         switch (get_type_tpop_code(tp)) {
 451         case tpo_array:
 452         case tpo_method:
 453         case tpo_pointer:
 454                 return;
 455         default:
 456                 break;
 457         }
 458
 459         export_type_common(env, tp);
 460
 461         switch (get_type_tpop_code(tp)) {
 462         case tpo_uninitialized:
 463                 panic("invalid type found");
 464
 465         case tpo_class:
 466                 export_compound_name(f, tp);
 467                 break;
 468
 469         case tpo_primitive:
 470                 write_mode(env, get_type_mode(tp));
 471                 break;
 472
 473         case tpo_union:
 474         case tpo_struct:
 475         case tpo_enumeration:
 476                 export_compound_name(f, tp);
 477                 break;
 478
 479         case tpo_array:
 480         case tpo_method:
 481         case tpo_pointer:
 482         case tpo_code:
 483         case tpo_none:
 484         case tpo_unknown:
 485                 break;
 486         }
 487         fputc('\n', f);
 488 }
 489
 490 static void export_type_post(io_env_t *env, ir_type *tp)
 491 {
 492         FILE *f = env->file;
 493         int i;
 494
 495         /* skip types already handled by pre walker */
 496         switch (get_type_tpop_code(tp)) {
 497         case tpo_class:
 498         case tpo_primitive:
 499         case tpo_struct:
 500         case tpo_union:
 501         case tpo_unknown:
 502         case tpo_uninitialized:
 503         case tpo_code:
 504         case tpo_none:
 505                 return;
 506         case tpo_array:
 507         case tpo_method:
 508         case tpo_pointer:
 509         case tpo_enumeration:
 510                 break;
 511         }
 512
 513         export_type_common(env, tp);
 514
 515         switch (get_type_tpop_code(tp)) {
 516         case tpo_array: {
 517                 int n = get_array_n_dimensions(tp);
 518                 fprintf(f, "%d %ld ", n, get_type_nr(get_array_element_type(tp)));
 519                 for (i = 0; i < n; i++) {
 520                         ir_node *lower = get_array_lower_bound(tp, i);
 521                         ir_node *upper = get_array_upper_bound(tp, i);
 522
 523                         if (is_Const(lower))
 524                                 fprintf(f, "%ld ", get_tarval_long(get_Const_tarval(lower)));
 525                         else
 526                                 panic("Lower array bound is not constant");
 527
 528                         if (is_Const(upper))
 529                                 fprintf(f, "%ld ", get_tarval_long(get_Const_tarval(upper)));
 530                         else if (is_Unknown(upper))
 531                                 fputs("unknown ", f);
 532                         else
 533                                 panic("Upper array bound is not constant");
 534                 }
 535                 break;
 536         }
 537
 538         case tpo_method: {
 539                 int nparams  = get_method_n_params(tp);
 540                 int nresults = get_method_n_ress(tp);
 541                 fprintf(f, "%u %u %d %d ", get_method_calling_convention(tp),
 542                         get_method_additional_properties(tp), nparams, nresults);
 543                 for (i = 0; i < nparams; i++)
 544                         fprintf(f, "%ld ", get_type_nr(get_method_param_type(tp, i)));
 545                 for (i = 0; i < nresults; i++)
 546                         fprintf(f, "%ld ", get_type_nr(get_method_res_type(tp, i)));
 547                 fprintf(f, "%d ", get_method_first_variadic_param_index(tp));
 548                 break;
 549         }
 550
 551         case tpo_pointer:
 552                 write_mode(env, get_type_mode(tp));
 553                 fprintf(f, "%ld ", get_type_nr(get_pointer_points_to_type(tp)));
 554                 break;
 555
 556         case tpo_enumeration:
 557                 fprintf(stderr, "Enumeration type not handled yet by exporter\n");
 558                 break;
 559
 560         default:
 561                 printf("export_type: Unknown type code \"%s\".\n",
 562                        get_type_tpop_name(tp));
 563                 break;
 564         }
 565         fputc('\n', f);
 566 }
 567
 568 static void export_entity(io_env_t *env, ir_entity *ent)
 569 {
 570         ir_type *owner = get_entity_owner(ent);
 571
 572         /* we don't dump array_element_ent entities. They're a strange concept
 573          * and lead to cycles in type_graph.
 574          */
 575         if (is_Array_type(owner))
 576                 return;
 577
 578         fprintf(env->file, "\tentity %ld \"%s\" ",
 579                 get_entity_nr(ent), get_entity_name(ent));
 580         if (ent->ld_name != NULL) {
 581                 fprintf(env->file, "\"%s\" ", get_entity_ld_name(ent));
 582         } else {
 583                 fprintf(env->file, "NULL ");
 584         }
 585
 586         fprintf(env->file, "%ld %ld %d %u %d %s %s %s %s %s ",
 587                         get_type_nr(get_entity_type(ent)),
 588                         get_type_nr(owner),
 589                         get_entity_offset(ent),
 590                         (unsigned) get_entity_offset_bits_remainder(ent),
 591                         is_entity_compiler_generated(ent),
 592                         get_allocation_name(get_entity_allocation(ent)),
 593                         get_visibility_name(get_entity_visibility(ent)),
 594                         get_variability_name(get_entity_variability(ent)),
 595                         get_peculiarity_name(get_entity_peculiarity(ent)),
 596                         get_volatility_name(get_entity_volatility(ent)));
 597
 598         /* TODO: inheritance stuff for class entities not supported yet */
 599         if (is_Class_type(owner) && owner != get_glob_type())
 600                 fprintf(stderr, "Inheritance of class entities not supported yet!\n");
 601
 602         if (get_entity_variability(ent) != variability_uninitialized &&
 603             get_entity_visibility(ent) != visibility_external_allocated)
 604         {
 605                 if (is_compound_entity(ent)) {
 606                         if (has_entity_initializer(ent)) {
 607                                 fputs("initializer ", env->file);
 608                                 write_initializer(env, get_entity_initializer(ent));
 609                         } else {
 610                                 int i, n = get_compound_ent_n_values(ent);
 611                                 fputs("noninitializer ", env->file);
 612                                 fprintf(env->file, "%d ", n);
 613                                 for (i = 0; i < n; i++) {
 614                                         ir_entity *member = get_compound_ent_value_member(ent, i);
 615                                         ir_node   *irn    = get_compound_ent_value(ent, i);
 616                                         fprintf(env->file, "%ld %ld ", get_entity_nr(member), get_irn_node_nr(irn));
 617                                 }
 618                         }
 619                 } else {
 620                         ir_node *irn = get_atomic_ent_value(ent);
 621                         fprintf(env->file, "%ld ", get_irn_node_nr(irn));
 622                 }
 623         }
 624
 625         fputc('\n', env->file);
 626 }
 627
 628 static void export_type_or_ent_pre(type_or_ent tore, void *ctx)
 629 {
 630         io_env_t *env = (io_env_t *) ctx;
 631         if (get_kind(tore.typ) == k_type)
 632                 export_type_pre(env, tore.typ);
 633 }
 634
 635 static void export_type_or_ent_post(type_or_ent tore, void *ctx)
 636 {
 637         io_env_t *env = (io_env_t *) ctx;
 638
 639         switch (get_kind(tore.ent)) {
 640         case k_entity:
 641                 export_entity(env, tore.ent);
 642                 break;
 643
 644         case k_type:
 645                 export_type_post(env, tore.typ);
 646                 break;
 647
 648         default:
 649                 panic("export_type_or_ent_post: Unknown type or entity.");
 650                 break;
 651         }
 652 }
 653
 654 /**
 655  * Walker: exports every node.
 656  */
 657 static void export_node(ir_node *irn, void *ctx)
 658 {
 659         io_env_t *env = (io_env_t *) ctx;
 660         int i, n;
 661         unsigned opcode = get_irn_opcode(irn);
 662
 663         if (env->ignoreblocks && opcode == iro_Block)
 664                 return;
 665
 666         fprintf(env->file, "\t%s %ld [ ", get_irn_opname(irn), get_irn_node_nr(irn));
 667
 668         n = get_irn_arity(irn);
 669         for (i = -1; i < n; i++) {
 670                 ir_node *pred = get_irn_n(irn, i);
 671                 if (pred == NULL) {
 672                         /* Anchor node may have NULL predecessors */
 673                         assert(is_Anchor(irn));
 674                         fputs("-1 ", env->file);
 675                 } else {
 676                         fprintf(env->file, "%ld ", get_irn_node_nr(pred));
 677                 }
 678         }
 679
 680         fprintf(env->file, "] { ");
 681
 682         switch (opcode) {
 683         #include "gen_irio_export.inl"
 684         }
 685         fputs("}\n", env->file);
 686 }
 687
 688 static const char *get_mode_sort_name(ir_mode_sort sort)
 689 {
 690         switch (sort) {
 691         case irms_auxiliary:        return "auxiliary";
 692         case irms_control_flow:     return "control_flow";
 693         case irms_memory:           return "memory";
 694         case irms_internal_boolean: return "internal_boolean";
 695         case irms_reference:        return "reference";
 696         case irms_int_number:       return "int_number";
 697         case irms_float_number:     return "float_number";
 698         }
 699         panic("invalid mode sort found");
 700 }
 701
 702 static void export_modes(io_env_t *env)
 703 {
 704         int i, n_modes = get_irp_n_modes();
 705
 706         fputs("modes {\n", env->file);
 707
 708         for (i = 0; i < n_modes; i++) {
 709                 ir_mode *mode = get_irp_mode(i);
 710                 switch (get_mode_sort(mode)) {
 711                 case irms_auxiliary:
 712                 case irms_control_flow:
 713                 case irms_memory:
 714                 case irms_internal_boolean:
 715                         /* skip "internal" modes, which may not be user defined */
 716                         continue;
 717                 default:
 718                         break;
 719                 }
 720
 721                 fprintf(env->file, "\tmode \"%s\" %s %d %d %s %d %d ",
 722                         get_mode_name(mode), get_mode_sort_name(get_mode_sort(mode)),
 723                         get_mode_size_bits(mode), get_mode_sign(mode),
 724                         get_mode_arithmetic_name(get_mode_arithmetic(mode)),
 725                         get_mode_modulo_shift(mode),
 726                         get_mode_n_vector_elems(mode));
 727                 if (mode_is_reference(mode)) {
 728                         write_mode(env, get_reference_mode_signed_eq(mode));
 729                         write_mode(env, get_reference_mode_unsigned_eq(mode));
 730                 }
 731                 fputc('\n', env->file);
 732         }
 733
 734         fputs("}\n", env->file);
 735 }
 736
 737 static void export_program(io_env_t *env)
 738 {
 739         FILE         *f = env->file;
 740         ir_segment_t  s;
 741
 742         fputs("\nprogram {\n", f);
 743         if (irp_prog_name_is_set()) {
 744                 fprintf(f, "\tname \"%s\"\n", get_irp_name());
 745         }
 746         /* We need numbers for irgs... */
 747 #if 0
 748         if (get_irp_main_irg() != NULL) {
 749                 fprintf(f, "\tmain_irg %d\n", get_irp_main_irg
 750 #endif
 751
 752         for (s = 0; s <= IR_SEGMENT_LAST; ++s) {
 753                 ir_type *segment_type = get_segment_type(s);
 754                 fprintf(f, "\tsegment_type %s", get_segment_name(s));
 755                 if (segment_type == NULL) {
 756                         fputs(" NULL\n", f);
 757                 } else {
 758                         fprintf(f, " %ld\n", get_type_nr(segment_type));
 759                 }
 760         }
 761         fputs("}\n", f);
 762 }
 763
 764 void ir_export(const char *filename)
 765 {
 766         FILE *file = fopen(filename, "wt");
 767         if (file == NULL) {
 768                 perror(filename);
 769                 return;
 770         }
 771
 772         ir_export_file(file, filename);
 773         fclose(file);
 774 }
 775
 776 /* Exports the whole irp to the given file in a textual form. */
 777 void ir_export_file(FILE *file, const char *outputname)
 778 {
 779         io_env_t env;
 780         int i, n_irgs = get_irp_n_irgs();
 781
 782         (void) outputname;
 783         env.file = file;
 784
 785         export_modes(&env);
 786
 787         fputs("\ntypegraph {\n", env.file);
 788         type_walk_prog(export_type_or_ent_pre, export_type_or_ent_post, &env);
 789         fputs("}\n", env.file);
 790
 791         for (i = 0; i < n_irgs; i++) {
 792                 ir_graph *irg       = get_irp_irg(i);
 793                 ir_type  *valuetype = get_irg_value_param_type(irg);
 794
 795                 fprintf(env.file, "\nirg %ld %ld %ld {\n",
 796                         get_entity_nr(get_irg_entity(irg)),
 797                         get_type_nr(get_irg_frame_type(irg)),
 798                         valuetype == NULL ? -1 : get_type_nr(valuetype));
 799
 800                 env.ignoreblocks = 0;
 801                 irg_block_walk_graph(irg, NULL, export_node, &env);
 802
 803                 env.ignoreblocks = 1;
 804                 irg_walk_anchors(irg, NULL, export_node, &env);
 805
 806                 fputs("}\n", env.file);
 807         }
 808
 809         fprintf(env.file, "\nconstirg %ld {\n", get_irn_node_nr(get_const_code_irg()->current_block));
 810
 811         walk_const_code(NULL, export_node, &env);
 812         fputs("}\n", env.file);
 813
 814         export_program(&env);
 815 }
 816
 817 /* Exports the given irg to the given file. */
 818 void ir_export_irg(ir_graph *irg, FILE *file, const char *outputname)
 819 {
 820         io_env_t env;
 821
 822         (void) outputname;
 823         env.file = file;
 824
 825         export_modes(&env);
 826
 827         fputs("typegraph {\n", env.file);
 828
 829         type_walk_irg(irg, export_type_or_ent_pre, export_type_or_ent_post, &env);
 830
 831         fprintf(env.file, "}\n\nirg %ld {\n", get_entity_nr(get_irg_entity(irg)));
 832
 833         env.ignoreblocks = 0;
 834         irg_block_walk_graph(irg, NULL, export_node, &env);
 835
 836         env.ignoreblocks = 1;
 837         irg_walk_anchors(irg, NULL, export_node, &env);
 838
 839         /* TODO: Only output needed constants */
 840         fprintf(env.file, "}\n\nconstirg %ld {\n", get_irn_node_nr(get_const_code_irg()->current_block));
 841         walk_const_code(NULL, export_node, &env);
 842         fputs("}\n", env.file);
 843 }
 844
 845 static void read_c(io_env_t *env)
 846 {
 847         int c = fgetc(env->file);
 848         env->c = c;
 849         if (c == '\n')
 850                 env->line++;
 851 }
 852
 853 /** Returns the first non-whitespace character or EOF. **/
 854 static void skip_ws(io_env_t *env)
 855 {
 856         while (true) {
 857                 switch (env->c) {
 858                 case ' ':
 859                 case '\t':
 860                 case '\n':
 861                 case '\r':
 862                         read_c(env);
 863                         continue;
 864
 865                 default:
 866                         return;
 867                 }
 868         }
 869 }
 870
 871 static void skip_to(io_env_t *env, char to_ch)
 872 {
 873         while (env->c != to_ch && env->c != EOF) {
 874                 read_c(env);
 875         }
 876 }
 877
 878 static int expect_char(io_env_t *env, char ch)
 879 {
 880         skip_ws(env);
 881         if (env->c != ch) {
 882                 parse_error(env, "Unexpected char '%c', expected '%c'\n",
 883                             env->c, ch);
 884                 return 0;
 885         }
 886         read_c(env);
 887         return 1;
 888 }
 889
 890 #define EXPECT(c) if (expect_char(env, (c))) {} else return 0
 891
 892 static char *read_word(io_env_t *env)
 893 {
 894         skip_ws(env);
 895
 896         assert(obstack_object_size(&env->obst) == 0);
 897         while (true) {
 898                 int c = env->c;
 899                 switch (c) {
 900                 case EOF:
 901                 case ' ':
 902                 case '\t':
 903                 case '\n':
 904                 case '\r':
 905                         goto endofword;
 906
 907                 default:
 908                         obstack_1grow(&env->obst, c);
 909                         break;
 910                 }
 911                 read_c(env);
 912         }
 913
 914 endofword:
 915         obstack_1grow(&env->obst, '\0');
 916         return obstack_finish(&env->obst);
 917 }
 918
 919 static char *read_quoted_string(io_env_t *env)
 920 {
 921         skip_ws(env);
 922         if (env->c != '\"') {
 923                 parse_error(env, "Expected '\"', found '%c'\n", env->c);
 924                 exit(1);
 925         }
 926         read_c(env);
 927
 928         assert(obstack_object_size(&env->obst) == 0);
 929         while (true) {
 930                 int ch = env->c;
 931                 if (ch == EOF) {
 932                         parse_error(env, "Unexpected end of quoted string!\n");
 933                         exit(1);
 934                 }
 935                 if (ch == '\"') {
 936                         read_c(env);
 937                         break;
 938                 }
 939                 obstack_1grow(&env->obst, ch);
 940                 read_c(env);
 941         }
 942         obstack_1grow(&env->obst, '\0');
 943
 944         return obstack_finish(&env->obst);
 945 }
 946
 947 static ident *read_ident(io_env_t *env)
 948 {
 949         char  *str = read_quoted_string(env);
 950         ident *res = new_id_from_str(str);
 951         obstack_free(&env->obst, str);
 952
 953         return res;
 954 }
 955
 956 /*
 957  * reads a "quoted string" or alternatively the token NULL
 958  */
 959 static char *read_quoted_string_null(io_env_t *env)
 960 {
 961         skip_ws(env);
 962         if (env->c == 'N') {
 963                 char *str = read_word(env);
 964                 if (strcmp(str, "NULL") == 0) {
 965                         obstack_free(&env->obst, str);
 966                         return NULL;
 967                 }
 968         } else if (env->c == '"') {
 969                 return read_quoted_string(env);
 970         }
 971
 972         parse_error(env, "Expected \"string\" or NULL\n");
 973         exit(1);
 974 }
 975
 976 static ident *read_ident_null(io_env_t *env)
 977 {
 978         ident *res;
 979         char  *str = read_quoted_string_null(env);
 980         if (str == NULL)
 981                 return NULL;
 982
 983         res = new_id_from_str(str);
 984         obstack_free(&env->obst, str);
 985         return res;
 986 }
 987
 988 static long read_long(io_env_t *env)
 989 {
 990         long  result;
 991         char *str;
 992
 993         skip_ws(env);
 994         if (!isdigit(env->c) && env->c != '-') {
 995                 parse_error(env, "Expected number, got '%c'\n", env->c);
 996                 exit(1);
 997         }
 998
 999         assert(obstack_object_size(&env->obst) == 0);
1000         do {
1001                 obstack_1grow(&env->obst, env->c);
1002                 read_c(env);
1003         } while(isdigit(env->c));
1004         obstack_1grow(&env->obst, 0);
1005
1006         str = obstack_finish(&env->obst);
1007         result = atol(str);
1008         obstack_free(&env->obst, str);
1009
1010         return result;
1011 }
1012
1013 static ir_node *get_node_or_null(io_env_t *env, long nodenr)
1014 {
1015         ir_node *node = (ir_node *) get_id(env, nodenr);
1016         if (node && node->kind != k_ir_node) {
1017                 panic("Irn ID %ld collides with something else in line %d\n",
1018                       nodenr, env->line);
1019         }
1020         return node;
1021 }
1022
1023 static ir_node *get_node(io_env_t *env, long nodenr)
1024 {
1025         ir_node *node = get_node_or_null(env, nodenr);
1026         if (!node)
1027                 panic("Unknown node: %ld in line %d\n", nodenr, env->line);
1028
1029         return node;
1030 }
1031
1032 static ir_node *get_node_or_dummy(io_env_t *env, long nodenr)
1033 {
1034         ir_node *node = get_node_or_null(env, nodenr);
1035         if (node == NULL) {
1036                 node = new_Dummy(mode_X);
1037                 set_id(env, nodenr, node);
1038         }
1039         return node;
1040 }
1041
1042 static ir_type *get_type(io_env_t *env, long typenr)
1043 {
1044         ir_type *type = (ir_type *) get_id(env, typenr);
1045         if (type == NULL)
1046                 panic("unknown type: %ld in line %d\n", typenr, env->line);
1047         else if (type->kind != k_type)
1048                 panic("type ID %ld collides with something else in line %d\n",
1049                       typenr, env->line);
1050         return type;
1051 }
1052
1053 static ir_type *read_type(io_env_t *env)
1054 {
1055         return get_type(env, read_long(env));
1056 }
1057
1058 static ir_entity *get_entity(io_env_t *env, long entnr)
1059 {
1060         ir_entity *entity = (ir_entity *) get_id(env, entnr);
1061         if (entity == NULL) {
1062                 parse_error(env, "unknown entity: %ld\n", entnr);
1063                 exit(1);
1064         } else if (entity->kind != k_entity) {
1065                 panic("Entity ID %ld collides with something else in line %d\n",
1066                       entnr, env->line);
1067         }
1068
1069         return entity;
1070 }
1071
1072 static ir_entity *read_entity(io_env_t *env)
1073 {
1074         return get_entity(env, read_long(env));
1075 }
1076
1077 static ir_mode *read_mode(io_env_t *env)
1078 {
1079         char *str = read_word(env);
1080         int i, n;
1081
1082         n = get_irp_n_modes();
1083         for (i = 0; i < n; i++) {
1084                 ir_mode *mode = get_irp_mode(i);
1085                 if (strcmp(str, get_mode_name(mode)) == 0) {
1086                         obstack_free(&env->obst, str);
1087                         return mode;
1088                 }
1089         }
1090
1091         parse_error(env, "unknown mode \"%s\"\n", str);
1092         exit(1);
1093 }
1094
1095 static const char *get_typetag_name(typetag_t typetag)
1096 {
1097         switch (typetag) {
1098         case tt_align:              return "align";
1099         case tt_allocation:         return "allocation";
1100         case tt_builtin:            return "builtin kind";
1101         case tt_initializer:        return "initializer kind";
1102         case tt_iro:                return "opcode";
1103         case tt_peculiarity:        return "peculiarity";
1104         case tt_pin_state:          return "pin state";
1105         case tt_tpo:                return "type";
1106         case tt_type_state:         return "type state";
1107         case tt_variability:        return "variability";
1108         case tt_visibility:         return "visibility";
1109         case tt_volatility:         return "volatility";
1110         case tt_cond_kind:          return "cond_kind";
1111         case tt_cond_jmp_predicate: return "cond_jmp_predicate";
1112         case tt_keyword:            return "keyword";
1113         case tt_mode_sort:          return "mode_sort";
1114         case tt_mode_arithmetic:    return "mode_arithmetic";
1115         case tt_segment:            return "segment";
1116         }
1117         return "<UNKNOWN>";
1118 }
1119
1120 /**
1121  * Read and decode an enum constant.
1122  */
1123 static unsigned read_enum(io_env_t *env, typetag_t typetag)
1124 {
1125         char     *str  = read_word(env);
1126         unsigned  code = symbol(str, typetag);
1127
1128         if (code != SYMERROR) {
1129                 obstack_free(&env->obst, str);
1130                 return code;
1131         }
1132
1133         parse_error(env, "invalid %s: \"%s\"\n", get_typetag_name(typetag), str);
1134         return 0;
1135 }
1136
1137 #define read_align(env)              ((ir_align)              read_enum(env, tt_align))
1138 #define read_allocation(env)         ((ir_allocation)         read_enum(env, tt_allocation))
1139 #define read_builtin_kind(env)       ((ir_builtin_kind)       read_enum(env, tt_builtin))
1140 #define read_cond_kind(env)          ((cond_kind)             read_enum(env, tt_cond_kind))
1141 #define read_cond_jmp_predicate(env) ((cond_jmp_predicate)    read_enum(env, tt_cond_jmp_predicate))
1142 #define read_initializer_kind(env)   ((ir_initializer_kind_t) read_enum(env, tt_initializer))
1143 #define read_mode_arithmetic(env)    ((ir_mode_arithmetic)    read_enum(env, tt_mode_arithmetic))
1144 #define read_peculiarity(env)        ((ir_peculiarity)        read_enum(env, tt_peculiarity))
1145 #define read_pin_state(env)          ((op_pin_state)          read_enum(env, tt_pin_state))
1146 #define read_type_state(env)         ((ir_type_state)         read_enum(env, tt_type_state))
1147 #define read_variability(env)        ((ir_variability)        read_enum(env, tt_variability))
1148 #define read_visibility(env)         ((ir_visibility)         read_enum(env, tt_visibility))
1149 #define read_volatility(env)         ((ir_volatility)         read_enum(env, tt_volatility))
1150
1151 static ir_cons_flags get_cons_flags(io_env_t *env)
1152 {
1153         ir_cons_flags flags = cons_none;
1154
1155         op_pin_state pinstate = read_pin_state(env);
1156         switch (pinstate) {
1157         case op_pin_state_floats: flags |= cons_floats; break;
1158         case op_pin_state_pinned: break;
1159         default:
1160                 panic("Error in %d: Invalid pinstate: %s", env->line,
1161                       get_op_pin_state_name(pinstate));
1162         }
1163
1164         if (read_volatility(env) == volatility_is_volatile)
1165                 flags |= cons_volatile;
1166         if (read_align(env) == align_non_aligned)
1167                 flags |= cons_unaligned;
1168
1169         return flags;
1170 }
1171
1172 static tarval *read_tv(io_env_t *env)
1173 {
1174         ir_mode *tvmode = read_mode(env);
1175         char    *str    = read_word(env);
1176         tarval  *tv     = new_tarval_from_str(str, strlen(str), tvmode);
1177         obstack_free(&env->obst, str);
1178
1179         return tv;
1180 }
1181
1182 static ir_initializer_t *read_initializer(io_env_t *env)
1183 {
1184         ir_initializer_kind_t ini_kind = read_initializer_kind(env);
1185
1186         switch (ini_kind) {
1187         case IR_INITIALIZER_CONST: {
1188                 ir_node *irn = get_node_or_dummy(env, read_long(env));
1189                 return create_initializer_const(irn);
1190         }
1191
1192         case IR_INITIALIZER_TARVAL:
1193                 return create_initializer_tarval(read_tv(env));
1194
1195         case IR_INITIALIZER_NULL:
1196                 return get_initializer_null();
1197
1198         case IR_INITIALIZER_COMPOUND: {
1199                 unsigned i, n = (unsigned) read_long(env);
1200                 ir_initializer_t *ini = create_initializer_compound(n);
1201                 for (i = 0; i < n; i++) {
1202                         ir_initializer_t *curini = read_initializer(env);
1203                         set_initializer_compound_value(ini, i, curini);
1204                 }
1205                 return ini;
1206         }
1207
1208         default:
1209                 panic("Unknown initializer kind");
1210         }
1211 }
1212
1213
1214 /** Reads a type description and remembers it by its id. */
1215 static void import_type(io_env_t *env)
1216 {
1217         int            i;
1218         ir_type       *type;
1219         long           typenr = read_long(env);
1220         tp_opcode      tpop   = (tp_opcode) read_enum(env, tt_tpo);
1221         unsigned       size   = (unsigned) read_long(env);
1222         unsigned       align  = (unsigned) read_long(env);
1223         ir_type_state  state  = read_type_state(env);
1224         ir_visibility  vis    = read_visibility(env);
1225         unsigned       flags  = (unsigned) read_long(env);
1226
1227         switch (tpop) {
1228         case tpo_array: {
1229                 int ndims = (int) read_long(env);
1230                 long elemtypenr = read_long(env);
1231                 ir_type *elemtype = get_type(env, elemtypenr);
1232
1233                 type = new_type_array(ndims, elemtype);
1234                 for (i = 0; i < ndims; i++) {
1235                         char *str = read_word(env);
1236                         if (strcmp(str, "unknown") != 0) {
1237                                 long lowerbound = atol(str);
1238                                 set_array_lower_bound_int(type, i, lowerbound);
1239                         }
1240                         obstack_free(&env->obst, str);
1241
1242                         str = read_word(env);
1243                         if (strcmp(str, "unknown") != 0) {
1244                                 long upperbound = atol(str);
1245                                 set_array_upper_bound_int(type, i, upperbound);
1246                         }
1247                         obstack_free(&env->obst, str);
1248                 }
1249                 set_type_size_bytes(type, size);
1250                 break;
1251         }
1252
1253         case tpo_class: {
1254                 const char *name = read_quoted_string_null(env);
1255                 ident      *id   = name != NULL ? new_id_from_str(name) : NULL;
1256
1257                 if(typenr == (long) IR_SEGMENT_GLOBAL)
1258                         type = get_glob_type();
1259                 else
1260                         type = new_type_class(id);
1261                 set_type_size_bytes(type, size);
1262                 break;
1263         }
1264
1265         case tpo_method: {
1266                 unsigned callingconv = (unsigned) read_long(env);
1267                 unsigned addprops    = (unsigned) read_long(env);
1268                 int nparams          = (int)      read_long(env);
1269                 int nresults         = (int)      read_long(env);
1270                 int variaindex;
1271
1272                 type = new_type_method(nparams, nresults);
1273
1274                 for (i = 0; i < nparams; i++) {
1275                         long     typenr = read_long(env);
1276                         ir_type *paramtype = get_type(env, typenr);
1277
1278                         set_method_param_type(type, i, paramtype);
1279                 }
1280                 for (i = 0; i < nresults; i++) {
1281                         long typenr = read_long(env);
1282                         ir_type *restype = get_type(env, typenr);
1283
1284                         set_method_res_type(type, i, restype);
1285                 }
1286
1287                 variaindex = (int) read_long(env);
1288                 if (variaindex != -1) {
1289                         set_method_variadicity(type, variadicity_variadic);
1290                         if (variaindex != nparams)
1291                                 set_method_first_variadic_param_index(type, variaindex);
1292                 }
1293
1294                 set_method_calling_convention(type, callingconv);
1295                 set_method_additional_properties(type, addprops);
1296                 break;
1297         }
1298
1299         case tpo_pointer: {
1300                 ir_mode *mode     = read_mode(env);
1301                 ir_type *pointsto = get_type(env, read_long(env));
1302                 type = new_type_pointer(pointsto);
1303                 set_type_mode(type, mode);
1304                 break;
1305         }
1306
1307         case tpo_primitive: {
1308                 ir_mode *mode = read_mode(env);
1309                 type = new_type_primitive(mode);
1310                 break;
1311         }
1312
1313         case tpo_struct: {
1314                 const char *name = read_quoted_string_null(env);
1315                 ident      *id   = name != NULL ? new_id_from_str(name) : NULL;
1316                 type = new_type_struct(id);
1317                 set_type_size_bytes(type, size);
1318                 break;
1319         }
1320
1321         case tpo_union: {
1322                 const char *name = read_quoted_string_null(env);
1323                 ident      *id   = name != NULL ? new_id_from_str(name) : NULL;
1324
1325                 type = new_type_union(id);
1326                 set_type_size_bytes(type, size);
1327                 break;
1328         }
1329
1330         case tpo_unknown:
1331                 return;   /* ignore unknown type */
1332
1333         default:
1334                 parse_error(env, "unknown type kind: \"%d\"\n", tpop);
1335                 skip_to(env, '\n');
1336                 return;
1337         }
1338
1339         set_type_alignment_bytes(type, align);
1340         set_type_visibility(type, vis);
1341         type->flags = flags;
1342
1343         if (state == layout_fixed)
1344                 ARR_APP1(ir_type *, env->fixedtypes, type);
1345
1346         set_id(env, typenr, type);
1347 }
1348
1349 /** Reads an entity description and remembers it by its id. */
1350 static void import_entity(io_env_t *env)
1351 {
1352         long   entnr       = read_long(env);
1353         ident *name        = read_ident(env);
1354         ident *ld_name     = read_ident_null(env);
1355         long   typenr      = read_long(env);
1356         long   ownertypenr = read_long(env);
1357
1358         ir_type   *type      = get_type(env, typenr);
1359         ir_type   *ownertype = !ownertypenr ? get_glob_type() : get_type(env, ownertypenr);
1360         ir_entity *entity    = new_entity(ownertype, name, type);
1361
1362         if (ld_name != NULL)
1363                 set_entity_ld_ident(entity, ld_name);
1364         set_entity_offset     (entity, (int) read_long(env));
1365         set_entity_offset_bits_remainder(entity, (unsigned char) read_long(env));
1366         set_entity_compiler_generated(entity, (int) read_long(env));
1367         set_entity_allocation (entity, read_allocation(env));
1368         set_entity_visibility (entity, read_visibility(env));
1369         set_entity_variability(entity, read_variability(env));
1370         set_entity_peculiarity(entity, read_peculiarity(env));
1371         set_entity_volatility (entity, read_volatility(env));
1372
1373         if (get_entity_variability(entity) != variability_uninitialized &&
1374             get_entity_visibility(entity) != visibility_external_allocated)     {
1375
1376                 if (is_compound_entity(entity)) {
1377                         char *str = read_word(env);
1378                         if (strcmp(str, "initializer") == 0) {
1379                                 set_entity_initializer(entity, read_initializer(env));
1380                         } else if (strcmp(str, "noninitializer") == 0) {
1381                                 int n = (int) read_long(env);
1382                                 int i;
1383                                 for (i = 0; i < n; i++) {
1384                                         ir_entity *member = get_entity(env, read_long(env));
1385                                         ir_node   *irn    = get_node_or_dummy(env, read_long(env));
1386                                         add_compound_ent_value(entity, irn, member);
1387                                 }
1388                         } else {
1389                                 parse_error(env, "expected 'initializer' or 'noninitializer', got '%s'\n", str);
1390                                 exit(1);
1391                         }
1392                 } else {
1393                         ir_node *irn = get_node_or_dummy(env, read_long(env));
1394                         set_atomic_ent_value(entity, irn);
1395                 }
1396         }
1397
1398         set_id(env, entnr, entity);
1399 }
1400
1401 /** Parses the whole type graph. */
1402 static int parse_typegraph(io_env_t *env)
1403 {
1404         keyword_t kwkind;
1405
1406         EXPECT('{');
1407
1408         current_ir_graph = get_const_code_irg();
1409
1410         /* parse all types first */
1411         while (true) {
1412                 skip_ws(env);
1413                 if (env->c == '}') {
1414                         read_c(env);
1415                         break;
1416                 }
1417
1418                 kwkind = (keyword_t) read_enum(env, tt_keyword);
1419                 switch (kwkind) {
1420                 case kw_type:
1421                         import_type(env);
1422                         break;
1423
1424                 case kw_entity:
1425                         import_entity(env);
1426                         break;
1427
1428                 default:
1429                         parse_error(env, "type graph element not supported yet: %d\n", kwkind);
1430                         skip_to(env, '\n');
1431                         break;
1432                 }
1433         }
1434         return 1;
1435 }
1436
1437 static int read_node_header(io_env_t *env, long *nodenr, long **preds,
1438                             const char **nodename)
1439 {
1440         int numpreds;
1441
1442         *nodename = read_word(env);
1443         *nodenr   = read_long(env);
1444
1445         ARR_RESIZE(ir_node *, *preds, 0);
1446
1447         EXPECT('[');
1448         for (numpreds = 0; !feof(env->file); numpreds++) {
1449                 long val;
1450
1451                 skip_ws(env);
1452                 if (env->c == ']') {
1453                         read_c(env);
1454                         break;
1455                 }
1456                 val = read_long(env);
1457                 ARR_APP1(long, *preds, val);
1458         }
1459
1460         return numpreds;
1461 }
1462
1463 /** Parses an IRG. */
1464 static int parse_graph(io_env_t *env, ir_graph *irg)
1465 {
1466         long       *preds = NEW_ARR_F(long, 16);
1467         ir_node   **prednodes = NEW_ARR_F(ir_node *, 16);
1468         int         i, numpreds, ret = 1;
1469         long        nodenr;
1470         const char *nodename;
1471         ir_node    *node, *newnode;
1472
1473         current_ir_graph = irg;
1474
1475         EXPECT('{');
1476
1477         while (true) {
1478                 skip_ws(env);
1479                 if (env->c == '}') {
1480                         read_c(env);
1481                         break;
1482                 }
1483
1484                 numpreds = read_node_header(env, &nodenr, &preds, &nodename);
1485                 if (numpreds == -1) break;  /* end-of-graph */
1486                 if (!numpreds) {
1487                         parse_error(env, "node %s %ld is missing predecessors!",
1488                                     nodename, nodenr);
1489                         ret = 0;
1490                         break;
1491                 }
1492
1493                 ARR_RESIZE(ir_node *, prednodes, numpreds);
1494                 for (i = 0; i < numpreds - 1; i++)
1495                         prednodes[i] = get_node_or_dummy(env, preds[i + 1]);
1496
1497                 node = get_node_or_null(env, nodenr);
1498                 newnode = NULL;
1499
1500                 EXPECT('{');
1501
1502                 switch (symbol(nodename, tt_iro)) {
1503                 case iro_End:
1504                 {
1505                         ir_node *newendblock = get_node(env, preds[0]);
1506                         newnode = get_irg_end(current_ir_graph);
1507                         exchange(get_nodes_block(newnode), newendblock);
1508                         for (i = 0; i < numpreds - 1; i++)
1509                                 add_irn_n(newnode, prednodes[i]);
1510                         break;
1511                 }
1512
1513                 case iro_Start:
1514                 {
1515                         ir_node *newstartblock = get_node(env, preds[0]);
1516                         newnode = get_irg_start(current_ir_graph);
1517                         exchange(get_nodes_block(newnode), newstartblock);
1518                         break;
1519                 }
1520
1521                 case iro_Block:
1522                 {
1523                         if (preds[0] != nodenr) {
1524                                 parse_error(env, "invalid block: preds[0] != nodenr (%ld != %ld)\n",
1525                                             preds[0], nodenr);
1526                                 ret = 0;
1527                                 goto endloop;
1528                         }
1529
1530                         newnode = new_Block(numpreds - 1, prednodes);
1531                         break;
1532                 }
1533
1534                 case iro_Anchor:
1535                         newnode = current_ir_graph->anchor;
1536                         for (i = 0; i < numpreds - 1; i++)
1537                                 set_irn_n(newnode, i, prednodes[i]);
1538                         set_irn_n(newnode, -1, get_node(env, preds[0]));
1539                         break;
1540
1541                 case iro_SymConst:
1542                 {
1543                         long entnr = read_long(env);
1544                         union symconst_symbol sym;
1545                         sym.entity_p = get_entity(env, entnr);
1546                         newnode = new_SymConst(mode_P, sym, symconst_addr_ent);
1547                         break;
1548                 }
1549
1550                 #include "gen_irio_import.inl"
1551
1552                 default:
1553                         goto notsupported;
1554                 }
1555
1556                 EXPECT('}');
1557
1558                 if (!newnode) {
1559 notsupported:
1560                         parse_error(env, "node type not supported yet: %s\n", nodename);
1561                         abort();
1562                 }
1563
1564                 if (node)
1565                         exchange(node, newnode);
1566                 /* Always update hash entry to avoid more uses of id nodes */
1567                 set_id(env, nodenr, newnode);
1568         }
1569
1570 endloop:
1571         DEL_ARR_F(preds);
1572         DEL_ARR_F(prednodes);
1573
1574         return ret;
1575 }
1576
1577 static int parse_modes(io_env_t *env)
1578 {
1579         EXPECT('{');
1580
1581         while (true) {
1582                 keyword_t kwkind;
1583
1584                 skip_ws(env);
1585                 if (env->c == '}') {
1586                         read_c(env);
1587                         break;
1588                 }
1589
1590                 kwkind = (keyword_t) read_enum(env, tt_keyword);
1591                 switch (kwkind) {
1592                 case kw_mode: {
1593                         const char *name = read_quoted_string(env);
1594                         ir_mode_sort sort = read_enum(env, tt_mode_sort);
1595                         int size = read_long(env);
1596                         int sign = read_long(env);
1597                         ir_mode_arithmetic arith = read_mode_arithmetic(env);
1598                         unsigned modulo_shift = read_long(env);
1599                         int vector_elems = read_long(env);
1600                         ir_mode *mode;
1601
1602                         if (vector_elems != 1) {
1603                                 panic("no support for import of vector modes yes");
1604                         }
1605
1606                         mode = new_ir_mode(name, sort, size, sign, arith, modulo_shift);
1607                         if (mode_is_reference(mode)) {
1608                                 set_reference_mode_signed_eq(mode, read_mode(env));
1609                                 set_reference_mode_unsigned_eq(mode, read_mode(env));
1610                         }
1611                         break;
1612                 }
1613
1614                 default:
1615                         skip_to(env, '\n');
1616                         break;
1617                 }
1618         }
1619         return 1;
1620 }
1621
1622 static int parse_program(io_env_t *env)
1623 {
1624         EXPECT('{');
1625
1626         while (true) {
1627                 keyword_t kwkind;
1628
1629                 skip_ws(env);
1630                 if (env->c == '}') {
1631                         read_c(env);
1632                         break;
1633                 }
1634
1635                 kwkind = (keyword_t) read_enum(env, tt_keyword);
1636                 switch (kwkind) {
1637                 case kw_segment_type: {
1638                         ir_segment_t  segment = (ir_segment_t) read_enum(env, tt_segment);
1639                         ir_type      *type    = read_type(env);
1640                         set_segment_type(segment, type);
1641                         break;
1642                 }
1643                 default:
1644                         parse_error(env, "unexpected keyword %d\n", kwkind);
1645                         skip_to(env, '\n');
1646                 }
1647         }
1648         return 1;
1649 }
1650
1651 void ir_import(const char *filename)
1652 {
1653         FILE *file = fopen(filename, "rt");
1654         if (file == NULL) {
1655                 perror(filename);
1656                 exit(1);
1657         }
1658
1659         ir_import_file(file, filename);
1660
1661         fclose(file);
1662 }
1663
1664 void ir_import_file(FILE *input, const char *inputname)
1665 {
1666         int oldoptimize = get_optimize();
1667         firm_verification_t oldver = get_node_verification_mode();
1668         io_env_t ioenv;
1669         io_env_t *env = &ioenv;
1670         int i, n;
1671
1672         symtbl_init();
1673
1674         memset(env, 0, sizeof(*env));
1675         obstack_init(&env->obst);
1676         env->idset      = new_set(id_cmp, 128);
1677         env->fixedtypes = NEW_ARR_F(ir_type *, 0);
1678         env->inputname  = inputname;
1679         env->file       = input;
1680         env->line       = 1;
1681
1682         /* read first character */
1683         read_c(env);
1684
1685         set_optimize(0);
1686         do_node_verification(FIRM_VERIFICATION_OFF);
1687
1688         while (true) {
1689                 keyword_t kw;
1690
1691                 skip_ws(env);
1692                 if (env->c == EOF)
1693                         break;
1694
1695                 kw = read_enum(env, tt_keyword);
1696                 switch (kw) {
1697                 case kw_modes:
1698                         if (!parse_modes(env)) goto end;
1699                         break;
1700
1701                 case kw_typegraph:
1702                         if (!parse_typegraph(env)) goto end;
1703                         break;
1704
1705                 case kw_irg:
1706                 {
1707                         ir_entity *irgent = get_entity(env, read_long(env));
1708                         long valuetypeid;
1709                         ir_graph *irg = new_ir_graph(irgent, 0);
1710                         set_irg_frame_type(irg, get_type(env, read_long(env)));
1711                         valuetypeid = read_long(env);
1712                         if (valuetypeid != -1)
1713                                 set_method_value_param_type(get_entity_type(irgent),
1714                                                 get_type(env, valuetypeid));
1715
1716                         if (!parse_graph(env, irg)) goto end;
1717                         break;
1718                 }
1719
1720                 case kw_constirg: {
1721                         ir_graph *constirg = get_const_code_irg();
1722                         long bodyblockid = read_long(env);
1723                         set_id(env, bodyblockid, constirg->current_block);
1724                         if (!parse_graph(env, constirg)) goto end;
1725                         break;
1726                 }
1727
1728                 case kw_program:
1729                         parse_program(env);
1730                         break;
1731
1732                 default: {
1733                         parse_error(env, "Unexpected keyword %d at toplevel\n", kw);
1734                         exit(1);
1735                 }
1736                 }
1737         }
1738
1739 end:
1740         n = ARR_LEN(env->fixedtypes);
1741         for (i = 0; i < n; i++)
1742                 set_type_state(env->fixedtypes[i], layout_fixed);
1743
1744         DEL_ARR_F(env->fixedtypes);
1745
1746         del_set(env->idset);
1747
1748         irp_finalize_cons();
1749
1750         do_node_verification(oldver);
1751         set_optimize(oldoptimize);
1752
1753         obstack_free(&env->obst, NULL);
1754 }