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_jmp_predicate,
  69         tt_initializer,
  70         tt_iro,
  71         tt_keyword,
  72         tt_mode_sort,
  73         tt_mode_arithmetic,
  74         tt_peculiarity,
  75         tt_pin_state,
  76         tt_tpo,
  77         tt_type_state,
  78         tt_variability,
  79         tt_visibility,
  80         tt_volatility,
  81         tt_segment
  82 } typetag_t;
  83
  84 typedef enum keyword_t
  85 {
  86         kw_constirg,
  87         kw_entity,
  88         kw_irg,
  89         kw_mode,
  90         kw_modes,
  91         kw_type,
  92         kw_typegraph,
  93         kw_program,
  94         kw_segment_type
  95 } keyword_t;
  96
  97 typedef struct symbol_t
  98 {
  99         const char *str;      /**< The name of this symbol. */
 100         typetag_t   typetag;  /**< The type tag of this symbol. */
 101         unsigned    code;     /**< The value of this symbol. */
 102 } symbol_t;
 103
 104 typedef struct id_entry
 105 {
 106         long id;
 107         void *elem;
 108 } id_entry;
 109
 110 /** The symbol table, a set of symbol_t elements. */
 111 static set *symtbl;
 112
 113 /**
 114  * Compare two symbol table entries.
 115  */
 116 static int symbol_cmp(const void *elt, const void *key, size_t size)
 117 {
 118         int res;
 119         const symbol_t *entry = (const symbol_t *) elt;
 120         const symbol_t *keyentry = (const symbol_t *) key;
 121         (void) size;
 122         res = entry->typetag - keyentry->typetag;
 123         if (res) return res;
 124         return strcmp(entry->str, keyentry->str);
 125 }
 126
 127 static int id_cmp(const void *elt, const void *key, size_t size)
 128 {
 129         const id_entry *entry = (const id_entry *) elt;
 130         const id_entry *keyentry = (const id_entry *) key;
 131         (void) size;
 132         return entry->id - keyentry->id;
 133 }
 134
 135 static void __attribute__((format(printf, 2, 3)))
 136 parse_error(io_env_t *env, const char *fmt, ...)
 137 {
 138         va_list ap;
 139         int     line = env->line;
 140
 141         /* workaround read_c "feature" that a '\n' triggers the line++
 142          * instead of the character after the '\n' */
 143         if (env->c == '\n') {
 144                 line--;
 145         }
 146
 147         fprintf(stderr, "%s:%d: error ", env->inputname, line);
 148
 149         va_start(ap, fmt);
 150         vfprintf(stderr, fmt, ap);
 151         va_end(ap);
 152 }
 153
 154 /** Initializes the symbol table. May be called more than once without problems. */
 155 static void symtbl_init(void)
 156 {
 157         symbol_t key;
 158
 159         /* Only initialize once */
 160         if (symtbl != NULL)
 161                 return;
 162
 163         symtbl = new_set(symbol_cmp, 256);
 164
 165 #define INSERT(tt, s, cod)                                       \
 166         key.str = (s);                                               \
 167         key.typetag = (tt);                                          \
 168         key.code = (cod);                                            \
 169         set_insert(symtbl, &key, sizeof(key), firm_fnv_hash_str(s) + tt * 17)
 170
 171 #define INSERTENUM(tt, e) INSERT(tt, #e, e)
 172 #define INSERTKEYWORD(k) INSERT(tt_keyword, #k, kw_##k)
 173
 174         INSERT(tt_tpo, "array", tpo_array);
 175         INSERT(tt_tpo, "class", tpo_class);
 176         INSERT(tt_tpo, "method", tpo_method);
 177         INSERT(tt_tpo, "pointer", tpo_pointer);
 178         INSERT(tt_tpo, "primitive", tpo_primitive);
 179         INSERT(tt_tpo, "struct", tpo_struct);
 180         INSERT(tt_tpo, "union", tpo_union);
 181         INSERT(tt_tpo, "Unknown", tpo_unknown);
 182
 183         INSERT(tt_mode_sort, "auxiliary", irms_auxiliary);
 184         INSERT(tt_mode_sort, "control_flow", irms_control_flow);
 185         INSERT(tt_mode_sort, "memory", irms_memory);
 186         INSERT(tt_mode_sort, "internal_boolean", irms_internal_boolean);
 187         INSERT(tt_mode_sort, "reference", irms_reference);
 188         INSERT(tt_mode_sort, "int_number", irms_int_number);
 189         INSERT(tt_mode_sort, "float_number", irms_float_number);
 190
 191         INSERT(tt_segment, "global", IR_SEGMENT_GLOBAL);
 192         INSERT(tt_segment, "thread_local", IR_SEGMENT_THREAD_LOCAL);
 193         INSERT(tt_segment, "constructors", IR_SEGMENT_CONSTRUCTORS);
 194         INSERT(tt_segment, "destructors", IR_SEGMENT_DESTRUCTORS);
 195
 196         INSERTKEYWORD(constirg);
 197         INSERTKEYWORD(entity);
 198         INSERTKEYWORD(irg);
 199         INSERTKEYWORD(mode);
 200         INSERTKEYWORD(modes);
 201         INSERTKEYWORD(type);
 202         INSERTKEYWORD(typegraph);
 203         INSERTKEYWORD(program);
 204         INSERTKEYWORD(segment_type);
 205
 206 #include "gen_irio_lex.inl"
 207
 208         INSERTENUM(tt_align, align_non_aligned);
 209         INSERTENUM(tt_align, align_is_aligned);
 210
 211         INSERTENUM(tt_allocation, allocation_automatic);
 212         INSERTENUM(tt_allocation, allocation_parameter);
 213         INSERTENUM(tt_allocation, allocation_dynamic);
 214         INSERTENUM(tt_allocation, allocation_static);
 215
 216         INSERTENUM(tt_builtin, ir_bk_trap);
 217         INSERTENUM(tt_builtin, ir_bk_debugbreak);
 218         INSERTENUM(tt_builtin, ir_bk_return_address);
 219         INSERTENUM(tt_builtin, ir_bk_frame_address);
 220         INSERTENUM(tt_builtin, ir_bk_prefetch);
 221         INSERTENUM(tt_builtin, ir_bk_ffs);
 222         INSERTENUM(tt_builtin, ir_bk_clz);
 223         INSERTENUM(tt_builtin, ir_bk_ctz);
 224         INSERTENUM(tt_builtin, ir_bk_popcount);
 225         INSERTENUM(tt_builtin, ir_bk_parity);
 226         INSERTENUM(tt_builtin, ir_bk_bswap);
 227         INSERTENUM(tt_builtin, ir_bk_inport);
 228         INSERTENUM(tt_builtin, ir_bk_outport);
 229         INSERTENUM(tt_builtin, ir_bk_inner_trampoline);
 230
 231         INSERTENUM(tt_cond_jmp_predicate, COND_JMP_PRED_NONE);
 232         INSERTENUM(tt_cond_jmp_predicate, COND_JMP_PRED_TRUE);
 233         INSERTENUM(tt_cond_jmp_predicate, COND_JMP_PRED_FALSE);
 234
 235         INSERTENUM(tt_initializer, IR_INITIALIZER_CONST);
 236         INSERTENUM(tt_initializer, IR_INITIALIZER_TARVAL);
 237         INSERTENUM(tt_initializer, IR_INITIALIZER_NULL);
 238         INSERTENUM(tt_initializer, IR_INITIALIZER_COMPOUND);
 239
 240         INSERTENUM(tt_mode_arithmetic, irma_uninitialized);
 241         INSERTENUM(tt_mode_arithmetic, irma_none);
 242         INSERTENUM(tt_mode_arithmetic, irma_twos_complement);
 243         INSERTENUM(tt_mode_arithmetic, irma_ones_complement);
 244         INSERTENUM(tt_mode_arithmetic, irma_int_BCD);
 245         INSERTENUM(tt_mode_arithmetic, irma_ieee754);
 246         INSERTENUM(tt_mode_arithmetic, irma_float_BCD);
 247
 248         INSERTENUM(tt_peculiarity, peculiarity_description);
 249         INSERTENUM(tt_peculiarity, peculiarity_inherited);
 250         INSERTENUM(tt_peculiarity, peculiarity_existent);
 251
 252         INSERTENUM(tt_pin_state, op_pin_state_floats);
 253         INSERTENUM(tt_pin_state, op_pin_state_pinned);
 254         INSERTENUM(tt_pin_state, op_pin_state_exc_pinned);
 255         INSERTENUM(tt_pin_state, op_pin_state_mem_pinned);
 256
 257         INSERTENUM(tt_type_state, layout_undefined);
 258         INSERTENUM(tt_type_state, layout_fixed);
 259
 260         INSERTENUM(tt_variability, variability_uninitialized);
 261         INSERTENUM(tt_variability, variability_initialized);
 262         INSERTENUM(tt_variability, variability_part_constant);
 263         INSERTENUM(tt_variability, variability_constant);
 264
 265         INSERTENUM(tt_visibility, visibility_local);
 266         INSERTENUM(tt_visibility, visibility_external_visible);
 267         INSERTENUM(tt_visibility, visibility_external_allocated);
 268
 269         INSERTENUM(tt_volatility, volatility_non_volatile);
 270         INSERTENUM(tt_volatility, volatility_is_volatile);
 271
 272 #undef INSERTKEYWORD
 273 #undef INSERTENUM
 274 #undef INSERT
 275 }
 276
 277 static const char *get_segment_name(ir_segment_t segment)
 278 {
 279         switch (segment) {
 280         case IR_SEGMENT_GLOBAL:       return "global";
 281         case IR_SEGMENT_THREAD_LOCAL: return "thread_local";
 282         case IR_SEGMENT_CONSTRUCTORS: return "constructors";
 283         case IR_SEGMENT_DESTRUCTORS:  return "destructors";
 284         }
 285         return "INVALID_SEGMENT";
 286 }
 287
 288 /** Returns the according symbol value for the given string and tag, or SYMERROR if none was found. */
 289 static unsigned symbol(const char *str, typetag_t typetag)
 290 {
 291         symbol_t key, *entry;
 292
 293         key.str = str;
 294         key.typetag = typetag;
 295
 296         entry = set_find(symtbl, &key, sizeof(key), firm_fnv_hash_str(str) + typetag * 17);
 297         return entry ? entry->code : SYMERROR;
 298 }
 299
 300 static void *get_id(io_env_t *env, long id)
 301 {
 302         id_entry key, *entry;
 303         key.id = id;
 304
 305         entry = set_find(env->idset, &key, sizeof(key), (unsigned) id);
 306         return entry ? entry->elem : NULL;
 307 }
 308
 309 static void set_id(io_env_t *env, long id, void *elem)
 310 {
 311         id_entry key;
 312         key.id = id;
 313         key.elem = elem;
 314         set_insert(env->idset, &key, sizeof(key), (unsigned) id);
 315 }
 316
 317 static void write_mode(io_env_t *env, ir_mode *mode)
 318 {
 319         fputs(get_mode_name(mode), env->file);
 320         fputc(' ', env->file);
 321 }
 322
 323 static void write_tarval(io_env_t *env, tarval *tv)
 324 {
 325         char buf[1024];
 326         write_mode(env, get_tarval_mode(tv));
 327         tarval_snprintf(buf, sizeof(buf), tv);
 328         fputs(buf, env->file);
 329         fputc(' ', env->file);
 330 }
 331
 332 static void write_align(io_env_t *env, ir_node *irn)
 333 {
 334         ir_align align;
 335
 336         if (is_Load(irn))
 337                 align = get_Load_align(irn);
 338         else if (is_Store(irn))
 339                 align = get_Store_align(irn);
 340         else
 341                 panic("Invalid optype for write_align");
 342
 343         fputs(get_align_name(align), env->file);
 344         fputc(' ', env->file);
 345 }
 346
 347 static void write_builtin_kind(io_env_t *env, ir_node *irn)
 348 {
 349         fputs(get_builtin_kind_name(get_Builtin_kind(irn)), env->file);
 350         fputc(' ', env->file);
 351 }
 352
 353 static void write_cond_jmp_predicate(io_env_t *env, ir_node *irn)
 354 {
 355         fputs(get_cond_jmp_predicate_name(get_Cond_jmp_pred(irn)), env->file);
 356         fputc(' ', env->file);
 357 }
 358
 359 static void write_initializer(io_env_t *env, ir_initializer_t *ini)
 360 {
 361         FILE *f = env->file;
 362         ir_initializer_kind_t ini_kind = get_initializer_kind(ini);
 363
 364         fputs(get_initializer_kind_name(ini_kind), f);
 365         fputc(' ', f);
 366
 367         switch (ini_kind) {
 368         case IR_INITIALIZER_CONST:
 369                 fprintf(f, "%ld ", get_irn_node_nr(get_initializer_const_value(ini)));
 370                 break;
 371
 372         case IR_INITIALIZER_TARVAL:
 373                 write_tarval(env, get_initializer_tarval_value(ini));
 374                 break;
 375
 376         case IR_INITIALIZER_NULL:
 377                 break;
 378
 379         case IR_INITIALIZER_COMPOUND: {
 380                 unsigned i, n = get_initializer_compound_n_entries(ini);
 381                 fprintf(f, "%d ", n);
 382                 for (i = 0; i < n; i++)
 383                         write_initializer(env, get_initializer_compound_value(ini, i));
 384                 break;
 385         }
 386
 387         default:
 388                 panic("Unknown initializer kind");
 389         }
 390 }
 391
 392 static void write_pin_state(io_env_t *env, ir_node *irn)
 393 {
 394         fputs(get_op_pin_state_name(get_irn_pinned(irn)), env->file);
 395         fputc(' ', env->file);
 396 }
 397
 398 static void write_volatility(io_env_t *env, ir_node *irn)
 399 {
 400         ir_volatility vol;
 401
 402         if (is_Load(irn))
 403                 vol = get_Load_volatility(irn);
 404         else if (is_Store(irn))
 405                 vol = get_Store_volatility(irn);
 406         else
 407                 panic("Invalid optype for write_volatility");
 408
 409         fputs(get_volatility_name(vol), env->file);
 410         fputc(' ', env->file);
 411 }
 412
 413 static void export_type_common(io_env_t *env, ir_type *tp)
 414 {
 415         fprintf(env->file, "\ttype %ld %s %u %u %s %s %d ",
 416                 get_type_nr(tp),
 417                 get_type_tpop_name(tp),
 418                 get_type_size_bytes(tp),
 419                 get_type_alignment_bytes(tp),
 420                 get_type_state_name(get_type_state(tp)),
 421                 get_visibility_name(get_type_visibility(tp)),
 422                 tp->flags);
 423 }
 424
 425 static void export_compound_name(FILE *f, const ir_type *tp)
 426 {
 427         ident *name = get_compound_ident(tp);
 428         if (name == NULL) {
 429                 fputs("NULL ", f);
 430         } else {
 431                 fprintf(f, "\"%s\" ", get_id_str(name));
 432         }
 433 }
 434
 435 static void export_type_pre(io_env_t *env, ir_type *tp)
 436 {
 437         FILE *f = env->file;
 438
 439         /* skip types to be handled by post walker */
 440         switch (get_type_tpop_code(tp)) {
 441         case tpo_array:
 442         case tpo_method:
 443         case tpo_pointer:
 444                 return;
 445         default:
 446                 break;
 447         }
 448
 449         export_type_common(env, tp);
 450
 451         switch (get_type_tpop_code(tp)) {
 452         case tpo_uninitialized:
 453                 panic("invalid type found");
 454
 455         case tpo_class:
 456                 export_compound_name(f, tp);
 457                 break;
 458
 459         case tpo_primitive:
 460                 write_mode(env, get_type_mode(tp));
 461                 break;
 462
 463         case tpo_union:
 464         case tpo_struct:
 465         case tpo_enumeration:
 466                 export_compound_name(f, tp);
 467                 break;
 468
 469         case tpo_array:
 470         case tpo_method:
 471         case tpo_pointer:
 472         case tpo_code:
 473         case tpo_none:
 474         case tpo_unknown:
 475                 break;
 476         }
 477         fputc('\n', f);
 478 }
 479
 480 static void export_type_post(io_env_t *env, ir_type *tp)
 481 {
 482         FILE *f = env->file;
 483         int i;
 484
 485         /* skip types already handled by pre walker */
 486         switch (get_type_tpop_code(tp)) {
 487         case tpo_class:
 488         case tpo_primitive:
 489         case tpo_struct:
 490         case tpo_union:
 491         case tpo_unknown:
 492         case tpo_uninitialized:
 493         case tpo_code:
 494         case tpo_none:
 495                 return;
 496         case tpo_array:
 497         case tpo_method:
 498         case tpo_pointer:
 499         case tpo_enumeration:
 500                 break;
 501         }
 502
 503         export_type_common(env, tp);
 504
 505         switch (get_type_tpop_code(tp)) {
 506         case tpo_array: {
 507                 int n = get_array_n_dimensions(tp);
 508                 fprintf(f, "%d %ld ", n, get_type_nr(get_array_element_type(tp)));
 509                 for (i = 0; i < n; i++) {
 510                         ir_node *lower = get_array_lower_bound(tp, i);
 511                         ir_node *upper = get_array_upper_bound(tp, i);
 512
 513                         if (is_Const(lower))
 514                                 fprintf(f, "%ld ", get_tarval_long(get_Const_tarval(lower)));
 515                         else
 516                                 panic("Lower array bound is not constant");
 517
 518                         if (is_Const(upper))
 519                                 fprintf(f, "%ld ", get_tarval_long(get_Const_tarval(upper)));
 520                         else if (is_Unknown(upper))
 521                                 fputs("unknown ", f);
 522                         else
 523                                 panic("Upper array bound is not constant");
 524                 }
 525                 break;
 526         }
 527
 528         case tpo_method: {
 529                 int nparams  = get_method_n_params(tp);
 530                 int nresults = get_method_n_ress(tp);
 531                 fprintf(f, "%u %u %d %d ", get_method_calling_convention(tp),
 532                         get_method_additional_properties(tp), nparams, nresults);
 533                 for (i = 0; i < nparams; i++)
 534                         fprintf(f, "%ld ", get_type_nr(get_method_param_type(tp, i)));
 535                 for (i = 0; i < nresults; i++)
 536                         fprintf(f, "%ld ", get_type_nr(get_method_res_type(tp, i)));
 537                 fprintf(f, "%d ", get_method_first_variadic_param_index(tp));
 538                 break;
 539         }
 540
 541         case tpo_pointer:
 542                 write_mode(env, get_type_mode(tp));
 543                 fprintf(f, "%ld ", get_type_nr(get_pointer_points_to_type(tp)));
 544                 break;
 545
 546         case tpo_enumeration:
 547                 fprintf(stderr, "Enumeration type not handled yet by exporter\n");
 548                 break;
 549
 550         default:
 551                 printf("export_type: Unknown type code \"%s\".\n",
 552                        get_type_tpop_name(tp));
 553                 break;
 554         }
 555         fputc('\n', f);
 556 }
 557
 558 static void export_entity(io_env_t *env, ir_entity *ent)
 559 {
 560         ir_type *owner = get_entity_owner(ent);
 561
 562         /* we don't dump array_element_ent entities. They're a strange concept
 563          * and lead to cycles in type_graph.
 564          */
 565         if (is_Array_type(owner))
 566                 return;
 567
 568         fprintf(env->file, "\tentity %ld \"%s\" ",
 569                 get_entity_nr(ent), get_entity_name(ent));
 570         if (ent->ld_name != NULL) {
 571                 fprintf(env->file, "\"%s\" ", get_entity_ld_name(ent));
 572         } else {
 573                 fprintf(env->file, "NULL ");
 574         }
 575
 576         fprintf(env->file, "%ld %ld %d %u %d %s %s %s %s %s ",
 577                         get_type_nr(get_entity_type(ent)),
 578                         get_type_nr(owner),
 579                         get_entity_offset(ent),
 580                         (unsigned) get_entity_offset_bits_remainder(ent),
 581                         is_entity_compiler_generated(ent),
 582                         get_allocation_name(get_entity_allocation(ent)),
 583                         get_visibility_name(get_entity_visibility(ent)),
 584                         get_variability_name(get_entity_variability(ent)),
 585                         get_peculiarity_name(get_entity_peculiarity(ent)),
 586                         get_volatility_name(get_entity_volatility(ent)));
 587
 588         /* TODO: inheritance stuff for class entities not supported yet */
 589         if (is_Class_type(owner) && owner != get_glob_type())
 590                 fprintf(stderr, "Inheritance of class entities not supported yet!\n");
 591
 592         if (get_entity_variability(ent) != variability_uninitialized &&
 593             get_entity_visibility(ent) != visibility_external_allocated)
 594         {
 595                 if (is_compound_entity(ent)) {
 596                         if (has_entity_initializer(ent)) {
 597                                 fputs("initializer ", env->file);
 598                                 write_initializer(env, get_entity_initializer(ent));
 599                         } else {
 600                                 int i, n = get_compound_ent_n_values(ent);
 601                                 fputs("noninitializer ", env->file);
 602                                 fprintf(env->file, "%d ", n);
 603                                 for (i = 0; i < n; i++) {
 604                                         ir_entity *member = get_compound_ent_value_member(ent, i);
 605                                         ir_node   *irn    = get_compound_ent_value(ent, i);
 606                                         fprintf(env->file, "%ld %ld ", get_entity_nr(member), get_irn_node_nr(irn));
 607                                 }
 608                         }
 609                 } else {
 610                         ir_node *irn = get_atomic_ent_value(ent);
 611                         fprintf(env->file, "%ld ", get_irn_node_nr(irn));
 612                 }
 613         }
 614
 615         fputc('\n', env->file);
 616 }
 617
 618 static void export_type_or_ent_pre(type_or_ent tore, void *ctx)
 619 {
 620         io_env_t *env = (io_env_t *) ctx;
 621         if (get_kind(tore.typ) == k_type)
 622                 export_type_pre(env, tore.typ);
 623 }
 624
 625 static void export_type_or_ent_post(type_or_ent tore, void *ctx)
 626 {
 627         io_env_t *env = (io_env_t *) ctx;
 628
 629         switch (get_kind(tore.ent)) {
 630         case k_entity:
 631                 export_entity(env, tore.ent);
 632                 break;
 633
 634         case k_type:
 635                 export_type_post(env, tore.typ);
 636                 break;
 637
 638         default:
 639                 panic("export_type_or_ent_post: Unknown type or entity.");
 640                 break;
 641         }
 642 }
 643
 644 /**
 645  * Walker: exports every node.
 646  */
 647 static void export_node(ir_node *irn, void *ctx)
 648 {
 649         io_env_t *env = (io_env_t *) ctx;
 650         int i, n;
 651         unsigned opcode = get_irn_opcode(irn);
 652
 653         if (env->ignoreblocks && opcode == iro_Block)
 654                 return;
 655
 656         fprintf(env->file, "\t%s %ld [ ", get_irn_opname(irn), get_irn_node_nr(irn));
 657
 658         n = get_irn_arity(irn);
 659         for (i = -1; i < n; i++) {
 660                 ir_node *pred = get_irn_n(irn, i);
 661                 if (pred == NULL) {
 662                         /* Anchor node may have NULL predecessors */
 663                         assert(is_Anchor(irn));
 664                         fputs("-1 ", env->file);
 665                 } else {
 666                         fprintf(env->file, "%ld ", get_irn_node_nr(pred));
 667                 }
 668         }
 669
 670         fprintf(env->file, "] { ");
 671
 672         switch (opcode) {
 673         #include "gen_irio_export.inl"
 674         }
 675         fputs("}\n", env->file);
 676 }
 677
 678 static const char *get_mode_sort_name(ir_mode_sort sort)
 679 {
 680         switch (sort) {
 681         case irms_auxiliary:        return "auxiliary";
 682         case irms_control_flow:     return "control_flow";
 683         case irms_memory:           return "memory";
 684         case irms_internal_boolean: return "internal_boolean";
 685         case irms_reference:        return "reference";
 686         case irms_int_number:       return "int_number";
 687         case irms_float_number:     return "float_number";
 688         }
 689         panic("invalid mode sort found");
 690 }
 691
 692 static void export_modes(io_env_t *env)
 693 {
 694         int i, n_modes = get_irp_n_modes();
 695
 696         fputs("modes {\n", env->file);
 697
 698         for (i = 0; i < n_modes; i++) {
 699                 ir_mode *mode = get_irp_mode(i);
 700                 switch (get_mode_sort(mode)) {
 701                 case irms_auxiliary:
 702                 case irms_control_flow:
 703                 case irms_memory:
 704                 case irms_internal_boolean:
 705                         /* skip "internal" modes, which may not be user defined */
 706                         continue;
 707                 default:
 708                         break;
 709                 }
 710
 711                 fprintf(env->file, "\tmode \"%s\" %s %d %d %s %d %d ",
 712                         get_mode_name(mode), get_mode_sort_name(get_mode_sort(mode)),
 713                         get_mode_size_bits(mode), get_mode_sign(mode),
 714                         get_mode_arithmetic_name(get_mode_arithmetic(mode)),
 715                         get_mode_modulo_shift(mode),
 716                         get_mode_n_vector_elems(mode));
 717                 if (mode_is_reference(mode)) {
 718                         write_mode(env, get_reference_mode_signed_eq(mode));
 719                         write_mode(env, get_reference_mode_unsigned_eq(mode));
 720                 }
 721                 fputc('\n', env->file);
 722         }
 723
 724         fputs("}\n", env->file);
 725 }
 726
 727 static void export_program(io_env_t *env)
 728 {
 729         FILE         *f = env->file;
 730         ir_segment_t  s;
 731
 732         fputs("\nprogram {\n", f);
 733         if (irp_prog_name_is_set()) {
 734                 fprintf(f, "\tname \"%s\"\n", get_irp_name());
 735         }
 736         /* We need numbers for irgs... */
 737 #if 0
 738         if (get_irp_main_irg() != NULL) {
 739                 fprintf(f, "\tmain_irg %d\n", get_irp_main_irg
 740 #endif
 741
 742         for (s = 0; s <= IR_SEGMENT_LAST; ++s) {
 743                 ir_type *segment_type = get_segment_type(s);
 744                 fprintf(f, "\tsegment_type %s", get_segment_name(s));
 745                 if (segment_type == NULL) {
 746                         fputs(" NULL\n", f);
 747                 } else {
 748                         fprintf(f, " %ld\n", get_type_nr(segment_type));
 749                 }
 750         }
 751         fputs("}\n", f);
 752 }
 753
 754 void ir_export(const char *filename)
 755 {
 756         FILE *file = fopen(filename, "wt");
 757         if (file == NULL) {
 758                 perror(filename);
 759                 return;
 760         }
 761
 762         ir_export_file(file, filename);
 763         fclose(file);
 764 }
 765
 766 /* Exports the whole irp to the given file in a textual form. */
 767 void ir_export_file(FILE *file, const char *outputname)
 768 {
 769         io_env_t env;
 770         int i, n_irgs = get_irp_n_irgs();
 771
 772         (void) outputname;
 773         env.file = file;
 774
 775         export_modes(&env);
 776
 777         fputs("\ntypegraph {\n", env.file);
 778         type_walk_prog(export_type_or_ent_pre, export_type_or_ent_post, &env);
 779         fputs("}\n", env.file);
 780
 781         for (i = 0; i < n_irgs; i++) {
 782                 ir_graph *irg       = get_irp_irg(i);
 783                 ir_type  *valuetype = get_irg_value_param_type(irg);
 784
 785                 fprintf(env.file, "\nirg %ld %ld %ld {\n",
 786                         get_entity_nr(get_irg_entity(irg)),
 787                         get_type_nr(get_irg_frame_type(irg)),
 788                         valuetype == NULL ? -1 : get_type_nr(valuetype));
 789
 790                 env.ignoreblocks = 0;
 791                 irg_block_walk_graph(irg, NULL, export_node, &env);
 792
 793                 env.ignoreblocks = 1;
 794                 irg_walk_anchors(irg, NULL, export_node, &env);
 795
 796                 fputs("}\n", env.file);
 797         }
 798
 799         fprintf(env.file, "\nconstirg %ld {\n", get_irn_node_nr(get_const_code_irg()->current_block));
 800
 801         walk_const_code(NULL, export_node, &env);
 802         fputs("}\n", env.file);
 803
 804         export_program(&env);
 805 }
 806
 807 /* Exports the given irg to the given file. */
 808 void ir_export_irg(ir_graph *irg, FILE *file, const char *outputname)
 809 {
 810         io_env_t env;
 811
 812         (void) outputname;
 813         env.file = file;
 814
 815         export_modes(&env);
 816
 817         fputs("typegraph {\n", env.file);
 818
 819         type_walk_irg(irg, export_type_or_ent_pre, export_type_or_ent_post, &env);
 820
 821         fprintf(env.file, "}\n\nirg %ld {\n", get_entity_nr(get_irg_entity(irg)));
 822
 823         env.ignoreblocks = 0;
 824         irg_block_walk_graph(irg, NULL, export_node, &env);
 825
 826         env.ignoreblocks = 1;
 827         irg_walk_anchors(irg, NULL, export_node, &env);
 828
 829         /* TODO: Only output needed constants */
 830         fprintf(env.file, "}\n\nconstirg %ld {\n", get_irn_node_nr(get_const_code_irg()->current_block));
 831         walk_const_code(NULL, export_node, &env);
 832         fputs("}\n", env.file);
 833 }
 834
 835 static void read_c(io_env_t *env)
 836 {
 837         int c = fgetc(env->file);
 838         env->c = c;
 839         if (c == '\n')
 840                 env->line++;
 841 }
 842
 843 /** Returns the first non-whitespace character or EOF. **/
 844 static void skip_ws(io_env_t *env)
 845 {
 846         while (true) {
 847                 switch (env->c) {
 848                 case ' ':
 849                 case '\t':
 850                 case '\n':
 851                 case '\r':
 852                         read_c(env);
 853                         continue;
 854
 855                 default:
 856                         return;
 857                 }
 858         }
 859 }
 860
 861 static void skip_to(io_env_t *env, char to_ch)
 862 {
 863         while (env->c != to_ch && env->c != EOF) {
 864                 read_c(env);
 865         }
 866 }
 867
 868 static int expect_char(io_env_t *env, char ch)
 869 {
 870         skip_ws(env);
 871         if (env->c != ch) {
 872                 parse_error(env, "Unexpected char '%c', expected '%c'\n",
 873                             env->c, ch);
 874                 return 0;
 875         }
 876         read_c(env);
 877         return 1;
 878 }
 879
 880 #define EXPECT(c) if (expect_char(env, (c))) {} else return 0
 881
 882 static char *read_word(io_env_t *env)
 883 {
 884         skip_ws(env);
 885
 886         assert(obstack_object_size(&env->obst) == 0);
 887         while (true) {
 888                 int c = env->c;
 889                 switch (c) {
 890                 case EOF:
 891                 case ' ':
 892                 case '\t':
 893                 case '\n':
 894                 case '\r':
 895                         goto endofword;
 896
 897                 default:
 898                         obstack_1grow(&env->obst, c);
 899                         break;
 900                 }
 901                 read_c(env);
 902         }
 903
 904 endofword:
 905         obstack_1grow(&env->obst, '\0');
 906         return obstack_finish(&env->obst);
 907 }
 908
 909 static char *read_quoted_string(io_env_t *env)
 910 {
 911         skip_ws(env);
 912         if (env->c != '\"') {
 913                 parse_error(env, "Expected '\"', found '%c'\n", env->c);
 914                 exit(1);
 915         }
 916         read_c(env);
 917
 918         assert(obstack_object_size(&env->obst) == 0);
 919         while (true) {
 920                 int ch = env->c;
 921                 if (ch == EOF) {
 922                         parse_error(env, "Unexpected end of quoted string!\n");
 923                         exit(1);
 924                 }
 925                 if (ch == '\"') {
 926                         read_c(env);
 927                         break;
 928                 }
 929                 obstack_1grow(&env->obst, ch);
 930                 read_c(env);
 931         }
 932         obstack_1grow(&env->obst, '\0');
 933
 934         return obstack_finish(&env->obst);
 935 }
 936
 937 static ident *read_ident(io_env_t *env)
 938 {
 939         char  *str = read_quoted_string(env);
 940         ident *res = new_id_from_str(str);
 941         obstack_free(&env->obst, str);
 942
 943         return res;
 944 }
 945
 946 /*
 947  * reads a "quoted string" or alternatively the token NULL
 948  */
 949 static char *read_quoted_string_null(io_env_t *env)
 950 {
 951         skip_ws(env);
 952         if (env->c == 'N') {
 953                 char *str = read_word(env);
 954                 if (strcmp(str, "NULL") == 0) {
 955                         obstack_free(&env->obst, str);
 956                         return NULL;
 957                 }
 958         } else if (env->c == '"') {
 959                 return read_quoted_string(env);
 960         }
 961
 962         parse_error(env, "Expected \"string\" or NULL\n");
 963         exit(1);
 964 }
 965
 966 static ident *read_ident_null(io_env_t *env)
 967 {
 968         ident *res;
 969         char  *str = read_quoted_string_null(env);
 970         if (str == NULL)
 971                 return NULL;
 972
 973         res = new_id_from_str(str);
 974         obstack_free(&env->obst, str);
 975         return res;
 976 }
 977
 978 static long read_long(io_env_t *env)
 979 {
 980         long  result;
 981         char *str;
 982
 983         skip_ws(env);
 984         if (!isdigit(env->c) && env->c != '-') {
 985                 parse_error(env, "Expected number, got '%c'\n", env->c);
 986                 exit(1);
 987         }
 988
 989         assert(obstack_object_size(&env->obst) == 0);
 990         do {
 991                 obstack_1grow(&env->obst, env->c);
 992                 read_c(env);
 993         } while(isdigit(env->c));
 994         obstack_1grow(&env->obst, 0);
 995
 996         str = obstack_finish(&env->obst);
 997         result = atol(str);
 998         obstack_free(&env->obst, str);
 999
1000         return result;
1001 }
1002
1003 static ir_node *get_node_or_null(io_env_t *env, long nodenr)
1004 {
1005         ir_node *node = (ir_node *) get_id(env, nodenr);
1006         if (node && node->kind != k_ir_node) {
1007                 panic("Irn ID %ld collides with something else in line %d\n",
1008                       nodenr, env->line);
1009         }
1010         return node;
1011 }
1012
1013 static ir_node *get_node(io_env_t *env, long nodenr)
1014 {
1015         ir_node *node = get_node_or_null(env, nodenr);
1016         if (!node)
1017                 panic("Unknown node: %ld in line %d\n", nodenr, env->line);
1018
1019         return node;
1020 }
1021
1022 static ir_node *get_node_or_dummy(io_env_t *env, long nodenr)
1023 {
1024         ir_node *node = get_node_or_null(env, nodenr);
1025         if (node == NULL) {
1026                 node = new_Dummy(mode_X);
1027                 set_id(env, nodenr, node);
1028         }
1029         return node;
1030 }
1031
1032 static ir_type *get_type(io_env_t *env, long typenr)
1033 {
1034         ir_type *type = (ir_type *) get_id(env, typenr);
1035         if (type == NULL)
1036                 panic("unknown type: %ld in line %d\n", typenr, env->line);
1037         else if (type->kind != k_type)
1038                 panic("type ID %ld collides with something else in line %d\n",
1039                       typenr, env->line);
1040         return type;
1041 }
1042
1043 static ir_type *read_type(io_env_t *env)
1044 {
1045         return get_type(env, read_long(env));
1046 }
1047
1048 static ir_entity *get_entity(io_env_t *env, long entnr)
1049 {
1050         ir_entity *entity = (ir_entity *) get_id(env, entnr);
1051         if (entity == NULL) {
1052                 parse_error(env, "unknown entity: %ld\n", entnr);
1053                 exit(1);
1054         } else if (entity->kind != k_entity) {
1055                 panic("Entity ID %ld collides with something else in line %d\n",
1056                       entnr, env->line);
1057         }
1058
1059         return entity;
1060 }
1061
1062 static ir_entity *read_entity(io_env_t *env)
1063 {
1064         return get_entity(env, read_long(env));
1065 }
1066
1067 static ir_mode *read_mode(io_env_t *env)
1068 {
1069         char *str = read_word(env);
1070         int i, n;
1071
1072         n = get_irp_n_modes();
1073         for (i = 0; i < n; i++) {
1074                 ir_mode *mode = get_irp_mode(i);
1075                 if (strcmp(str, get_mode_name(mode)) == 0) {
1076                         obstack_free(&env->obst, str);
1077                         return mode;
1078                 }
1079         }
1080
1081         parse_error(env, "unknown mode \"%s\"\n", str);
1082         exit(1);
1083 }
1084
1085 static const char *get_typetag_name(typetag_t typetag)
1086 {
1087         switch (typetag) {
1088         case tt_align:              return "align";
1089         case tt_allocation:         return "allocation";
1090         case tt_builtin:            return "builtin kind";
1091         case tt_initializer:        return "initializer kind";
1092         case tt_iro:                return "opcode";
1093         case tt_peculiarity:        return "peculiarity";
1094         case tt_pin_state:          return "pin state";
1095         case tt_tpo:                return "type";
1096         case tt_type_state:         return "type state";
1097         case tt_variability:        return "variability";
1098         case tt_visibility:         return "visibility";
1099         case tt_volatility:         return "volatility";
1100         case tt_cond_jmp_predicate: return "cond_jmp_predicate";
1101         case tt_keyword:            return "keyword";
1102         case tt_mode_sort:          return "mode_sort";
1103         case tt_mode_arithmetic:    return "mode_arithmetic";
1104         case tt_segment:            return "segment";
1105         }
1106         return "<UNKNOWN>";
1107 }
1108
1109 /**
1110  * Read and decode an enum constant.
1111  */
1112 static unsigned read_enum(io_env_t *env, typetag_t typetag)
1113 {
1114         char     *str  = read_word(env);
1115         unsigned  code = symbol(str, typetag);
1116
1117         if (code != SYMERROR) {
1118                 obstack_free(&env->obst, str);
1119                 return code;
1120         }
1121
1122         parse_error(env, "invalid %s: \"%s\"\n", get_typetag_name(typetag), str);
1123         return 0;
1124 }
1125
1126 #define read_align(env)              ((ir_align)              read_enum(env, tt_align))
1127 #define read_allocation(env)         ((ir_allocation)         read_enum(env, tt_allocation))
1128 #define read_builtin_kind(env)       ((ir_builtin_kind)       read_enum(env, tt_builtin))
1129 #define read_cond_jmp_predicate(env) ((cond_jmp_predicate)    read_enum(env, tt_cond_jmp_predicate))
1130 #define read_initializer_kind(env)   ((ir_initializer_kind_t) read_enum(env, tt_initializer))
1131 #define read_mode_arithmetic(env)    ((ir_mode_arithmetic)    read_enum(env, tt_mode_arithmetic))
1132 #define read_peculiarity(env)        ((ir_peculiarity)        read_enum(env, tt_peculiarity))
1133 #define read_pin_state(env)          ((op_pin_state)          read_enum(env, tt_pin_state))
1134 #define read_type_state(env)         ((ir_type_state)         read_enum(env, tt_type_state))
1135 #define read_variability(env)        ((ir_variability)        read_enum(env, tt_variability))
1136 #define read_visibility(env)         ((ir_visibility)         read_enum(env, tt_visibility))
1137 #define read_volatility(env)         ((ir_volatility)         read_enum(env, tt_volatility))
1138
1139 static ir_cons_flags get_cons_flags(io_env_t *env)
1140 {
1141         ir_cons_flags flags = cons_none;
1142
1143         op_pin_state pinstate = read_pin_state(env);
1144         switch (pinstate) {
1145         case op_pin_state_floats: flags |= cons_floats; break;
1146         case op_pin_state_pinned: break;
1147         default:
1148                 panic("Error in %d: Invalid pinstate: %s", env->line,
1149                       get_op_pin_state_name(pinstate));
1150         }
1151
1152         if (read_volatility(env) == volatility_is_volatile)
1153                 flags |= cons_volatile;
1154         if (read_align(env) == align_non_aligned)
1155                 flags |= cons_unaligned;
1156
1157         return flags;
1158 }
1159
1160 static tarval *read_tv(io_env_t *env)
1161 {
1162         ir_mode *tvmode = read_mode(env);
1163         char    *str    = read_word(env);
1164         tarval  *tv     = new_tarval_from_str(str, strlen(str), tvmode);
1165         obstack_free(&env->obst, str);
1166
1167         return tv;
1168 }
1169
1170 static ir_initializer_t *read_initializer(io_env_t *env)
1171 {
1172         ir_initializer_kind_t ini_kind = read_initializer_kind(env);
1173
1174         switch (ini_kind) {
1175         case IR_INITIALIZER_CONST: {
1176                 ir_node *irn = get_node_or_dummy(env, read_long(env));
1177                 return create_initializer_const(irn);
1178         }
1179
1180         case IR_INITIALIZER_TARVAL:
1181                 return create_initializer_tarval(read_tv(env));
1182
1183         case IR_INITIALIZER_NULL:
1184                 return get_initializer_null();
1185
1186         case IR_INITIALIZER_COMPOUND: {
1187                 unsigned i, n = (unsigned) read_long(env);
1188                 ir_initializer_t *ini = create_initializer_compound(n);
1189                 for (i = 0; i < n; i++) {
1190                         ir_initializer_t *curini = read_initializer(env);
1191                         set_initializer_compound_value(ini, i, curini);
1192                 }
1193                 return ini;
1194         }
1195
1196         default:
1197                 panic("Unknown initializer kind");
1198         }
1199 }
1200
1201
1202 /** Reads a type description and remembers it by its id. */
1203 static void import_type(io_env_t *env)
1204 {
1205         int            i;
1206         ir_type       *type;
1207         long           typenr = read_long(env);
1208         tp_opcode      tpop   = (tp_opcode) read_enum(env, tt_tpo);
1209         unsigned       size   = (unsigned) read_long(env);
1210         unsigned       align  = (unsigned) read_long(env);
1211         ir_type_state  state  = read_type_state(env);
1212         ir_visibility  vis    = read_visibility(env);
1213         unsigned       flags  = (unsigned) read_long(env);
1214
1215         switch (tpop) {
1216         case tpo_array: {
1217                 int ndims = (int) read_long(env);
1218                 long elemtypenr = read_long(env);
1219                 ir_type *elemtype = get_type(env, elemtypenr);
1220
1221                 type = new_type_array(ndims, elemtype);
1222                 for (i = 0; i < ndims; i++) {
1223                         char *str = read_word(env);
1224                         if (strcmp(str, "unknown") != 0) {
1225                                 long lowerbound = atol(str);
1226                                 set_array_lower_bound_int(type, i, lowerbound);
1227                         }
1228                         obstack_free(&env->obst, str);
1229
1230                         str = read_word(env);
1231                         if (strcmp(str, "unknown") != 0) {
1232                                 long upperbound = atol(str);
1233                                 set_array_upper_bound_int(type, i, upperbound);
1234                         }
1235                         obstack_free(&env->obst, str);
1236                 }
1237                 set_type_size_bytes(type, size);
1238                 break;
1239         }
1240
1241         case tpo_class: {
1242                 const char *name = read_quoted_string_null(env);
1243                 ident      *id   = name != NULL ? new_id_from_str(name) : NULL;
1244
1245                 if(typenr == (long) IR_SEGMENT_GLOBAL)
1246                         type = get_glob_type();
1247                 else
1248                         type = new_type_class(id);
1249                 set_type_size_bytes(type, size);
1250                 break;
1251         }
1252
1253         case tpo_method: {
1254                 unsigned callingconv = (unsigned) read_long(env);
1255                 unsigned addprops    = (unsigned) read_long(env);
1256                 int nparams          = (int)      read_long(env);
1257                 int nresults         = (int)      read_long(env);
1258                 int variaindex;
1259
1260                 type = new_type_method(nparams, nresults);
1261
1262                 for (i = 0; i < nparams; i++) {
1263                         long     typenr = read_long(env);
1264                         ir_type *paramtype = get_type(env, typenr);
1265
1266                         set_method_param_type(type, i, paramtype);
1267                 }
1268                 for (i = 0; i < nresults; i++) {
1269                         long typenr = read_long(env);
1270                         ir_type *restype = get_type(env, typenr);
1271
1272                         set_method_res_type(type, i, restype);
1273                 }
1274
1275                 variaindex = (int) read_long(env);
1276                 if (variaindex != -1) {
1277                         set_method_variadicity(type, variadicity_variadic);
1278                         if (variaindex != nparams)
1279                                 set_method_first_variadic_param_index(type, variaindex);
1280                 }
1281
1282                 set_method_calling_convention(type, callingconv);
1283                 set_method_additional_properties(type, addprops);
1284                 break;
1285         }
1286
1287         case tpo_pointer: {
1288                 ir_mode *mode     = read_mode(env);
1289                 ir_type *pointsto = get_type(env, read_long(env));
1290                 type = new_type_pointer(pointsto);
1291                 set_type_mode(type, mode);
1292                 break;
1293         }
1294
1295         case tpo_primitive: {
1296                 ir_mode *mode = read_mode(env);
1297                 type = new_type_primitive(mode);
1298                 break;
1299         }
1300
1301         case tpo_struct: {
1302                 const char *name = read_quoted_string_null(env);
1303                 ident      *id   = name != NULL ? new_id_from_str(name) : NULL;
1304                 type = new_type_struct(id);
1305                 set_type_size_bytes(type, size);
1306                 break;
1307         }
1308
1309         case tpo_union: {
1310                 const char *name = read_quoted_string_null(env);
1311                 ident      *id   = name != NULL ? new_id_from_str(name) : NULL;
1312
1313                 type = new_type_union(id);
1314                 set_type_size_bytes(type, size);
1315                 break;
1316         }
1317
1318         case tpo_unknown:
1319                 return;   /* ignore unknown type */
1320
1321         default:
1322                 parse_error(env, "unknown type kind: \"%d\"\n", tpop);
1323                 skip_to(env, '\n');
1324                 return;
1325         }
1326
1327         set_type_alignment_bytes(type, align);
1328         set_type_visibility(type, vis);
1329         type->flags = flags;
1330
1331         if (state == layout_fixed)
1332                 ARR_APP1(ir_type *, env->fixedtypes, type);
1333
1334         set_id(env, typenr, type);
1335 }
1336
1337 /** Reads an entity description and remembers it by its id. */
1338 static void import_entity(io_env_t *env)
1339 {
1340         long   entnr       = read_long(env);
1341         ident *name        = read_ident(env);
1342         ident *ld_name     = read_ident_null(env);
1343         long   typenr      = read_long(env);
1344         long   ownertypenr = read_long(env);
1345
1346         ir_type   *type      = get_type(env, typenr);
1347         ir_type   *ownertype = !ownertypenr ? get_glob_type() : get_type(env, ownertypenr);
1348         ir_entity *entity    = new_entity(ownertype, name, type);
1349
1350         if (ld_name != NULL)
1351                 set_entity_ld_ident(entity, ld_name);
1352         set_entity_offset     (entity, (int) read_long(env));
1353         set_entity_offset_bits_remainder(entity, (unsigned char) read_long(env));
1354         set_entity_compiler_generated(entity, (int) read_long(env));
1355         set_entity_allocation (entity, read_allocation(env));
1356         set_entity_visibility (entity, read_visibility(env));
1357         set_entity_variability(entity, read_variability(env));
1358         set_entity_peculiarity(entity, read_peculiarity(env));
1359         set_entity_volatility (entity, read_volatility(env));
1360
1361         if (get_entity_variability(entity) != variability_uninitialized &&
1362             get_entity_visibility(entity) != visibility_external_allocated)     {
1363
1364                 if (is_compound_entity(entity)) {
1365                         char *str = read_word(env);
1366                         if (strcmp(str, "initializer") == 0) {
1367                                 set_entity_initializer(entity, read_initializer(env));
1368                         } else if (strcmp(str, "noninitializer") == 0) {
1369                                 int n = (int) read_long(env);
1370                                 int i;
1371                                 for (i = 0; i < n; i++) {
1372                                         ir_entity *member = get_entity(env, read_long(env));
1373                                         ir_node   *irn    = get_node_or_dummy(env, read_long(env));
1374                                         add_compound_ent_value(entity, irn, member);
1375                                 }
1376                         } else {
1377                                 parse_error(env, "expected 'initializer' or 'noninitializer', got '%s'\n", str);
1378                                 exit(1);
1379                         }
1380                 } else {
1381                         ir_node *irn = get_node_or_dummy(env, read_long(env));
1382                         set_atomic_ent_value(entity, irn);
1383                 }
1384         }
1385
1386         set_id(env, entnr, entity);
1387 }
1388
1389 /** Parses the whole type graph. */
1390 static int parse_typegraph(io_env_t *env)
1391 {
1392         keyword_t kwkind;
1393
1394         EXPECT('{');
1395
1396         current_ir_graph = get_const_code_irg();
1397
1398         /* parse all types first */
1399         while (true) {
1400                 skip_ws(env);
1401                 if (env->c == '}') {
1402                         read_c(env);
1403                         break;
1404                 }
1405
1406                 kwkind = (keyword_t) read_enum(env, tt_keyword);
1407                 switch (kwkind) {
1408                 case kw_type:
1409                         import_type(env);
1410                         break;
1411
1412                 case kw_entity:
1413                         import_entity(env);
1414                         break;
1415
1416                 default:
1417                         parse_error(env, "type graph element not supported yet: %d\n", kwkind);
1418                         skip_to(env, '\n');
1419                         break;
1420                 }
1421         }
1422         return 1;
1423 }
1424
1425 static int read_node_header(io_env_t *env, long *nodenr, long **preds,
1426                             const char **nodename)
1427 {
1428         int numpreds;
1429
1430         *nodename = read_word(env);
1431         *nodenr   = read_long(env);
1432
1433         ARR_RESIZE(ir_node *, *preds, 0);
1434
1435         EXPECT('[');
1436         for (numpreds = 0; !feof(env->file); numpreds++) {
1437                 long val;
1438
1439                 skip_ws(env);
1440                 if (env->c == ']') {
1441                         read_c(env);
1442                         break;
1443                 }
1444                 val = read_long(env);
1445                 ARR_APP1(long, *preds, val);
1446         }
1447
1448         return numpreds;
1449 }
1450
1451 /** Parses an IRG. */
1452 static int parse_graph(io_env_t *env, ir_graph *irg)
1453 {
1454         long       *preds = NEW_ARR_F(long, 16);
1455         ir_node   **prednodes = NEW_ARR_F(ir_node *, 16);
1456         int         i, numpreds, ret = 1;
1457         long        nodenr;
1458         const char *nodename;
1459         ir_node    *node, *newnode;
1460
1461         current_ir_graph = irg;
1462
1463         EXPECT('{');
1464
1465         while (true) {
1466                 skip_ws(env);
1467                 if (env->c == '}') {
1468                         read_c(env);
1469                         break;
1470                 }
1471
1472                 numpreds = read_node_header(env, &nodenr, &preds, &nodename);
1473                 if (numpreds == -1) break;  /* end-of-graph */
1474                 if (!numpreds) {
1475                         parse_error(env, "node %s %ld is missing predecessors!",
1476                                     nodename, nodenr);
1477                         ret = 0;
1478                         break;
1479                 }
1480
1481                 ARR_RESIZE(ir_node *, prednodes, numpreds);
1482                 for (i = 0; i < numpreds - 1; i++)
1483                         prednodes[i] = get_node_or_dummy(env, preds[i + 1]);
1484
1485                 node = get_node_or_null(env, nodenr);
1486                 newnode = NULL;
1487
1488                 EXPECT('{');
1489
1490                 switch (symbol(nodename, tt_iro)) {
1491                 case iro_End:
1492                 {
1493                         ir_node *newendblock = get_node(env, preds[0]);
1494                         newnode = get_irg_end(current_ir_graph);
1495                         exchange(get_nodes_block(newnode), newendblock);
1496                         for (i = 0; i < numpreds - 1; i++)
1497                                 add_irn_n(newnode, prednodes[i]);
1498                         break;
1499                 }
1500
1501                 case iro_Start:
1502                 {
1503                         ir_node *newstartblock = get_node(env, preds[0]);
1504                         newnode = get_irg_start(current_ir_graph);
1505                         exchange(get_nodes_block(newnode), newstartblock);
1506                         break;
1507                 }
1508
1509                 case iro_Block:
1510                 {
1511                         if (preds[0] != nodenr) {
1512                                 parse_error(env, "invalid block: preds[0] != nodenr (%ld != %ld)\n",
1513                                             preds[0], nodenr);
1514                                 ret = 0;
1515                                 goto endloop;
1516                         }
1517
1518                         newnode = new_Block(numpreds - 1, prednodes);
1519                         break;
1520                 }
1521
1522                 case iro_Anchor:
1523                         newnode = current_ir_graph->anchor;
1524                         for (i = 0; i < numpreds - 1; i++)
1525                                 set_irn_n(newnode, i, prednodes[i]);
1526                         set_irn_n(newnode, -1, get_node(env, preds[0]));
1527                         break;
1528
1529                 case iro_SymConst:
1530                 {
1531                         long entnr = read_long(env);
1532                         union symconst_symbol sym;
1533                         sym.entity_p = get_entity(env, entnr);
1534                         newnode = new_SymConst(mode_P, sym, symconst_addr_ent);
1535                         break;
1536                 }
1537
1538                 #include "gen_irio_import.inl"
1539
1540                 default:
1541                         goto notsupported;
1542                 }
1543
1544                 EXPECT('}');
1545
1546                 if (!newnode) {
1547 notsupported:
1548                         parse_error(env, "node type not supported yet: %s\n", nodename);
1549                         abort();
1550                 }
1551
1552                 if (node)
1553                         exchange(node, newnode);
1554                 /* Always update hash entry to avoid more uses of id nodes */
1555                 set_id(env, nodenr, newnode);
1556         }
1557
1558 endloop:
1559         DEL_ARR_F(preds);
1560         DEL_ARR_F(prednodes);
1561
1562         return ret;
1563 }
1564
1565 static int parse_modes(io_env_t *env)
1566 {
1567         EXPECT('{');
1568
1569         while (true) {
1570                 keyword_t kwkind;
1571
1572                 skip_ws(env);
1573                 if (env->c == '}') {
1574                         read_c(env);
1575                         break;
1576                 }
1577
1578                 kwkind = (keyword_t) read_enum(env, tt_keyword);
1579                 switch (kwkind) {
1580                 case kw_mode: {
1581                         const char *name = read_quoted_string(env);
1582                         ir_mode_sort sort = read_enum(env, tt_mode_sort);
1583                         int size = read_long(env);
1584                         int sign = read_long(env);
1585                         ir_mode_arithmetic arith = read_mode_arithmetic(env);
1586                         unsigned modulo_shift = read_long(env);
1587                         int vector_elems = read_long(env);
1588                         ir_mode *mode;
1589
1590                         if (vector_elems != 1) {
1591                                 panic("no support for import of vector modes yes");
1592                         }
1593
1594                         mode = new_ir_mode(name, sort, size, sign, arith, modulo_shift);
1595                         if (mode_is_reference(mode)) {
1596                                 set_reference_mode_signed_eq(mode, read_mode(env));
1597                                 set_reference_mode_unsigned_eq(mode, read_mode(env));
1598                         }
1599                         break;
1600                 }
1601
1602                 default:
1603                         skip_to(env, '\n');
1604                         break;
1605                 }
1606         }
1607         return 1;
1608 }
1609
1610 static int parse_program(io_env_t *env)
1611 {
1612         EXPECT('{');
1613
1614         while (true) {
1615                 keyword_t kwkind;
1616
1617                 skip_ws(env);
1618                 if (env->c == '}') {
1619                         read_c(env);
1620                         break;
1621                 }
1622
1623                 kwkind = (keyword_t) read_enum(env, tt_keyword);
1624                 switch (kwkind) {
1625                 case kw_segment_type: {
1626                         ir_segment_t  segment = (ir_segment_t) read_enum(env, tt_segment);
1627                         ir_type      *type    = read_type(env);
1628                         set_segment_type(segment, type);
1629                         break;
1630                 }
1631                 default:
1632                         parse_error(env, "unexpected keyword %d\n", kwkind);
1633                         skip_to(env, '\n');
1634                 }
1635         }
1636         return 1;
1637 }
1638
1639 void ir_import(const char *filename)
1640 {
1641         FILE *file = fopen(filename, "rt");
1642         if (file == NULL) {
1643                 perror(filename);
1644                 exit(1);
1645         }
1646
1647         ir_import_file(file, filename);
1648
1649         fclose(file);
1650 }
1651
1652 void ir_import_file(FILE *input, const char *inputname)
1653 {
1654         int oldoptimize = get_optimize();
1655         firm_verification_t oldver = get_node_verification_mode();
1656         io_env_t ioenv;
1657         io_env_t *env = &ioenv;
1658         int i, n;
1659
1660         symtbl_init();
1661
1662         memset(env, 0, sizeof(*env));
1663         obstack_init(&env->obst);
1664         env->idset      = new_set(id_cmp, 128);
1665         env->fixedtypes = NEW_ARR_F(ir_type *, 0);
1666         env->inputname  = inputname;
1667         env->file       = input;
1668         env->line       = 1;
1669
1670         /* read first character */
1671         read_c(env);
1672
1673         set_optimize(0);
1674         do_node_verification(FIRM_VERIFICATION_OFF);
1675
1676         while (true) {
1677                 keyword_t kw;
1678
1679                 skip_ws(env);
1680                 if (env->c == EOF)
1681                         break;
1682
1683                 kw = read_enum(env, tt_keyword);
1684                 switch (kw) {
1685                 case kw_modes:
1686                         if (!parse_modes(env)) goto end;
1687                         break;
1688
1689                 case kw_typegraph:
1690                         if (!parse_typegraph(env)) goto end;
1691                         break;
1692
1693                 case kw_irg:
1694                 {
1695                         ir_entity *irgent = get_entity(env, read_long(env));
1696                         long valuetypeid;
1697                         ir_graph *irg = new_ir_graph(irgent, 0);
1698                         set_irg_frame_type(irg, get_type(env, read_long(env)));
1699                         valuetypeid = read_long(env);
1700                         if (valuetypeid != -1)
1701                                 set_method_value_param_type(get_entity_type(irgent),
1702                                                 get_type(env, valuetypeid));
1703
1704                         if (!parse_graph(env, irg)) goto end;
1705                         break;
1706                 }
1707
1708                 case kw_constirg: {
1709                         ir_graph *constirg = get_const_code_irg();
1710                         long bodyblockid = read_long(env);
1711                         set_id(env, bodyblockid, constirg->current_block);
1712                         if (!parse_graph(env, constirg)) goto end;
1713                         break;
1714                 }
1715
1716                 case kw_program:
1717                         parse_program(env);
1718                         break;
1719
1720                 default: {
1721                         parse_error(env, "Unexpected keyword %d at toplevel\n", kw);
1722                         exit(1);
1723                 }
1724                 }
1725         }
1726
1727 end:
1728         n = ARR_LEN(env->fixedtypes);
1729         for (i = 0; i < n; i++)
1730                 set_type_state(env->fixedtypes[i], layout_fixed);
1731
1732         DEL_ARR_F(env->fixedtypes);
1733
1734         del_set(env->idset);
1735
1736         irp_finalize_cons();
1737
1738         do_node_verification(oldver);
1739         set_optimize(oldoptimize);
1740
1741         obstack_free(&env->obst, NULL);
1742 }