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

   1 /*
   2  * Copyright (C) 1995-2011 University of Karlsruhe.  All right reserved.
   3  *
   4  * This file is part of libFirm.
   5  *
   6  * This file may be distributed and/or modified under the terms of the
   7  * GNU General Public License version 2 as published by the Free Software
   8  * Foundation and appearing in the file LICENSE.GPL included in the
   9  * packaging of this file.
  10  *
  11  * Licensees holding valid libFirm Professional Edition licenses may use
  12  * this file in accordance with the libFirm Commercial License.
  13  * Agreement provided with the Software.
  14  *
  15  * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
  16  * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  17  * PURPOSE.
  18  */
  19
  20 /**
  21  * @file
  22  * @brief   Write textual representation of firm to file.
  23  * @author  Moritz Kroll
  24  * @version $Id$
  25  */
  26 #include "config.h"
  27
  28 #include <string.h>
  29 #include <ctype.h>
  30 #include <stdbool.h>
  31 #include <stdarg.h>
  32
  33 #include "irio.h"
  34
  35 #include "irnode_t.h"
  36 #include "irprog.h"
  37 #include "irgraph_t.h"
  38 #include "irprintf.h"
  39 #include "ircons.h"
  40 #include "irgmod.h"
  41 #include "irflag_t.h"
  42 #include "irgwalk.h"
  43 #include "tv.h"
  44 #include "array.h"
  45 #include "error.h"
  46 #include "typerep.h"
  47 #include "adt/set.h"
  48 #include "adt/obst.h"
  49
  50 #define SYMERROR ((unsigned) ~0)
  51
  52 typedef struct io_env_t
  53 {
  54         int c;                /**< currently read char */
  55         FILE *file;
  56         set *idset;           /**< id_entry set, which maps from file ids to new Firm elements */
  57         int ignoreblocks;
  58         const char *inputname;
  59         int line;
  60         ir_type **fixedtypes;
  61         struct obstack obst;
  62         ir_graph *irg;
  63 } io_env_t;
  64
  65 typedef enum typetag_t
  66 {
  67         tt_align,
  68         tt_allocation,
  69         tt_builtin,
  70         tt_cond_jmp_predicate,
  71         tt_initializer,
  72         tt_iro,
  73         tt_keyword,
  74         tt_mode_arithmetic,
  75         tt_pin_state,
  76         tt_tpo,
  77         tt_type_state,
  78         tt_volatility,
  79         tt_linkage,
  80         tt_segment,
  81         tt_visibility
  82 } typetag_t;
  83
  84 typedef enum keyword_t
  85 {
  86         kw_constirg,
  87         kw_entity,
  88         kw_irg,
  89         kw_int_mode,
  90         kw_reference_mode,
  91         kw_float_mode,
  92         kw_modes,
  93         kw_type,
  94         kw_typegraph,
  95         kw_program,
  96         kw_segment_type
  97 } keyword_t;
  98
  99 typedef struct symbol_t
 100 {
 101         const char *str;      /**< The name of this symbol. */
 102         typetag_t   typetag;  /**< The type tag of this symbol. */
 103         unsigned    code;     /**< The value of this symbol. */
 104 } symbol_t;
 105
 106 typedef struct id_entry
 107 {
 108         long id;
 109         void *elem;
 110 } id_entry;
 111
 112 /** The symbol table, a set of symbol_t elements. */
 113 static set *symtbl;
 114
 115 /**
 116  * Compare two symbol table entries.
 117  */
 118 static int symbol_cmp(const void *elt, const void *key, size_t size)
 119 {
 120         int res;
 121         const symbol_t *entry = (const symbol_t *) elt;
 122         const symbol_t *keyentry = (const symbol_t *) key;
 123         (void) size;
 124         res = entry->typetag - keyentry->typetag;
 125         if (res) return res;
 126         return strcmp(entry->str, keyentry->str);
 127 }
 128
 129 static int id_cmp(const void *elt, const void *key, size_t size)
 130 {
 131         const id_entry *entry = (const id_entry *) elt;
 132         const id_entry *keyentry = (const id_entry *) key;
 133         (void) size;
 134         return entry->id - keyentry->id;
 135 }
 136
 137 static void __attribute__((format(printf, 2, 3)))
 138 parse_error(io_env_t *env, const char *fmt, ...)
 139 {
 140         va_list ap;
 141         int     line = env->line;
 142
 143         /* workaround read_c "feature" that a '\n' triggers the line++
 144          * instead of the character after the '\n' */
 145         if (env->c == '\n') {
 146                 line--;
 147         }
 148
 149         fprintf(stderr, "%s:%d: error ", env->inputname, line);
 150
 151         va_start(ap, fmt);
 152         vfprintf(stderr, fmt, ap);
 153         va_end(ap);
 154 }
 155
 156 /** Initializes the symbol table. May be called more than once without problems. */
 157 static void symtbl_init(void)
 158 {
 159         symbol_t key;
 160
 161         /* Only initialize once */
 162         if (symtbl != NULL)
 163                 return;
 164
 165         symtbl = new_set(symbol_cmp, 256);
 166
 167 #define INSERT(tt, s, cod)                                       \
 168         key.str = (s);                                               \
 169         key.typetag = (tt);                                          \
 170         key.code = (cod);                                            \
 171         set_insert(symtbl, &key, sizeof(key), firm_fnv_hash_str(s) + tt * 17)
 172
 173 #define INSERTENUM(tt, e) INSERT(tt, #e, e)
 174 #define INSERTKEYWORD(k) INSERT(tt_keyword, #k, kw_##k)
 175
 176         INSERT(tt_tpo, "array", tpo_array);
 177         INSERT(tt_tpo, "class", tpo_class);
 178         INSERT(tt_tpo, "method", tpo_method);
 179         INSERT(tt_tpo, "pointer", tpo_pointer);
 180         INSERT(tt_tpo, "primitive", tpo_primitive);
 181         INSERT(tt_tpo, "struct", tpo_struct);
 182         INSERT(tt_tpo, "union", tpo_union);
 183         INSERT(tt_tpo, "Unknown", tpo_unknown);
 184
 185         INSERT(tt_segment, "global", IR_SEGMENT_GLOBAL);
 186         INSERT(tt_segment, "thread_local", IR_SEGMENT_THREAD_LOCAL);
 187         INSERT(tt_segment, "constructors", IR_SEGMENT_CONSTRUCTORS);
 188         INSERT(tt_segment, "destructors", IR_SEGMENT_DESTRUCTORS);
 189
 190         INSERT(tt_linkage, "constant", IR_LINKAGE_CONSTANT);
 191         INSERT(tt_linkage, "weak", IR_LINKAGE_WEAK);
 192         INSERT(tt_linkage, "garbage_collect", IR_LINKAGE_GARBAGE_COLLECT);
 193         INSERT(tt_linkage, "merge", IR_LINKAGE_MERGE);
 194         INSERT(tt_linkage, "hidden_user", IR_LINKAGE_HIDDEN_USER);
 195
 196         INSERT(tt_visibility, "local", ir_visibility_local);
 197         INSERT(tt_visibility, "external", ir_visibility_external);
 198         INSERT(tt_visibility, "default", ir_visibility_default);
 199         INSERT(tt_visibility, "private", ir_visibility_private);
 200
 201         INSERTKEYWORD(constirg);
 202         INSERTKEYWORD(entity);
 203         INSERTKEYWORD(irg);
 204         INSERTKEYWORD(int_mode);
 205         INSERTKEYWORD(float_mode);
 206         INSERTKEYWORD(reference_mode);
 207         INSERTKEYWORD(modes);
 208         INSERTKEYWORD(type);
 209         INSERTKEYWORD(typegraph);
 210         INSERTKEYWORD(program);
 211         INSERTKEYWORD(segment_type);
 212
 213 #include "gen_irio_lex.inl"
 214
 215         INSERTENUM(tt_align, align_non_aligned);
 216         INSERTENUM(tt_align, align_is_aligned);
 217
 218         INSERTENUM(tt_builtin, ir_bk_trap);
 219         INSERTENUM(tt_builtin, ir_bk_debugbreak);
 220         INSERTENUM(tt_builtin, ir_bk_return_address);
 221         INSERTENUM(tt_builtin, ir_bk_frame_address);
 222         INSERTENUM(tt_builtin, ir_bk_prefetch);
 223         INSERTENUM(tt_builtin, ir_bk_ffs);
 224         INSERTENUM(tt_builtin, ir_bk_clz);
 225         INSERTENUM(tt_builtin, ir_bk_ctz);
 226         INSERTENUM(tt_builtin, ir_bk_popcount);
 227         INSERTENUM(tt_builtin, ir_bk_parity);
 228         INSERTENUM(tt_builtin, ir_bk_bswap);
 229         INSERTENUM(tt_builtin, ir_bk_inport);
 230         INSERTENUM(tt_builtin, ir_bk_outport);
 231         INSERTENUM(tt_builtin, ir_bk_inner_trampoline);
 232
 233         INSERTENUM(tt_cond_jmp_predicate, COND_JMP_PRED_NONE);
 234         INSERTENUM(tt_cond_jmp_predicate, COND_JMP_PRED_TRUE);
 235         INSERTENUM(tt_cond_jmp_predicate, COND_JMP_PRED_FALSE);
 236
 237         INSERTENUM(tt_initializer, IR_INITIALIZER_CONST);
 238         INSERTENUM(tt_initializer, IR_INITIALIZER_TARVAL);
 239         INSERTENUM(tt_initializer, IR_INITIALIZER_NULL);
 240         INSERTENUM(tt_initializer, IR_INITIALIZER_COMPOUND);
 241
 242         INSERTENUM(tt_mode_arithmetic, irma_uninitialized);
 243         INSERTENUM(tt_mode_arithmetic, irma_none);
 244         INSERTENUM(tt_mode_arithmetic, irma_twos_complement);
 245         INSERTENUM(tt_mode_arithmetic, irma_ieee754);
 246
 247         INSERTENUM(tt_pin_state, op_pin_state_floats);
 248         INSERTENUM(tt_pin_state, op_pin_state_pinned);
 249         INSERTENUM(tt_pin_state, op_pin_state_exc_pinned);
 250         INSERTENUM(tt_pin_state, op_pin_state_mem_pinned);
 251
 252         INSERTENUM(tt_type_state, layout_undefined);
 253         INSERTENUM(tt_type_state, layout_fixed);
 254
 255         INSERTENUM(tt_volatility, volatility_non_volatile);
 256         INSERTENUM(tt_volatility, volatility_is_volatile);
 257
 258 #undef INSERTKEYWORD
 259 #undef INSERTENUM
 260 #undef INSERT
 261 }
 262
 263 static const char *get_segment_name(ir_segment_t segment)
 264 {
 265         switch (segment) {
 266         case IR_SEGMENT_GLOBAL:       return "global";
 267         case IR_SEGMENT_THREAD_LOCAL: return "thread_local";
 268         case IR_SEGMENT_CONSTRUCTORS: return "constructors";
 269         case IR_SEGMENT_DESTRUCTORS:  return "destructors";
 270         }
 271         return "INVALID_SEGMENT";
 272 }
 273
 274 static const char *get_visibility_name(ir_visibility visibility)
 275 {
 276         switch (visibility) {
 277         case ir_visibility_local:    return "local";
 278         case ir_visibility_external: return "external";
 279         case ir_visibility_default:  return "default";
 280         case ir_visibility_private:  return "private";
 281         }
 282         return "INVALID_VISIBILITY";
 283 }
 284
 285 /** Returns the according symbol value for the given string and tag, or SYMERROR if none was found. */
 286 static unsigned symbol(const char *str, typetag_t typetag)
 287 {
 288         symbol_t key, *entry;
 289
 290         key.str = str;
 291         key.typetag = typetag;
 292
 293         entry = (symbol_t*)set_find(symtbl, &key, sizeof(key), firm_fnv_hash_str(str) + typetag * 17);
 294         return entry ? entry->code : SYMERROR;
 295 }
 296
 297 static void *get_id(io_env_t *env, long id)
 298 {
 299         id_entry key, *entry;
 300         key.id = id;
 301
 302         entry = (id_entry*)set_find(env->idset, &key, sizeof(key), (unsigned) id);
 303         return entry ? entry->elem : NULL;
 304 }
 305
 306 static void set_id(io_env_t *env, long id, void *elem)
 307 {
 308         id_entry key;
 309         key.id = id;
 310         key.elem = elem;
 311         set_insert(env->idset, &key, sizeof(key), (unsigned) id);
 312 }
 313
 314 static void write_long(io_env_t *env, long value)
 315 {
 316         fprintf(env->file, "%ld ", value);
 317 }
 318
 319 static void write_int(io_env_t *env, int value)
 320 {
 321         fprintf(env->file, "%d ", value);
 322 }
 323
 324 static void write_unsigned(io_env_t *env, unsigned value)
 325 {
 326         fprintf(env->file, "%u ", value);
 327 }
 328
 329 static void write_entity_ref(io_env_t *env, ir_entity *entity)
 330 {
 331         write_long(env, get_entity_nr(entity));
 332 }
 333
 334 static void write_type_ref(io_env_t *env, ir_type *type)
 335 {
 336         write_long(env, get_type_nr(type));
 337 }
 338
 339 static void write_string(io_env_t *env, const char *string)
 340 {
 341         const char *c;
 342         fputc('"', env->file);
 343         for (c = string; *c != '\0'; ++c) {
 344                 switch (*c) {
 345                 case '\n':
 346                         fputc('\\', env->file);
 347                         fputc('n', env->file);
 348                         break;
 349                 case '"':
 350                 case '\\':
 351                         fputc('\\', env->file);
 352                         /* FALLTHROUGH */
 353                 default:
 354                         fputc(*c, env->file);
 355                         break;
 356                 }
 357         }
 358         fputc('"', env->file);
 359 }
 360
 361 static void write_ident(io_env_t *env, ident *id)
 362 {
 363         write_string(env, get_id_str(id));
 364         fputc(' ', env->file);
 365 }
 366
 367 static void write_ident_null(io_env_t *env, ident *id)
 368 {
 369         if (id == NULL) {
 370                 fputs("NULL ", env->file);
 371         } else {
 372                 write_ident(env, id);
 373         }
 374 }
 375
 376 static void write_mode(io_env_t *env, ir_mode *mode)
 377 {
 378         write_string(env, get_mode_name(mode));
 379         fputc(' ', env->file);
 380 }
 381
 382 static void write_tarval(io_env_t *env, ir_tarval *tv)
 383 {
 384         char buf[1024];
 385         write_mode(env, get_tarval_mode(tv));
 386         tarval_snprintf(buf, sizeof(buf), tv);
 387         fputs(buf, env->file);
 388         fputc(' ', env->file);
 389 }
 390
 391 static void write_align(io_env_t *env, ir_align align)
 392 {
 393         fputs(get_align_name(align), env->file);
 394         fputc(' ', env->file);
 395 }
 396
 397 static void write_builtin_kind(io_env_t *env, ir_node *irn)
 398 {
 399         fputs(get_builtin_kind_name(get_Builtin_kind(irn)), env->file);
 400         fputc(' ', env->file);
 401 }
 402
 403 static void write_cond_jmp_predicate(io_env_t *env, ir_node *irn)
 404 {
 405         fputs(get_cond_jmp_predicate_name(get_Cond_jmp_pred(irn)), env->file);
 406         fputc(' ', env->file);
 407 }
 408
 409 static void write_list_begin(io_env_t *env)
 410 {
 411         fputs("[", env->file);
 412 }
 413
 414 static void write_list_end(io_env_t *env)
 415 {
 416         fputs("] ", env->file);
 417 }
 418
 419 static void write_initializer(io_env_t *env, ir_initializer_t *ini)
 420 {
 421         FILE *f = env->file;
 422         ir_initializer_kind_t ini_kind = get_initializer_kind(ini);
 423
 424         fputs(get_initializer_kind_name(ini_kind), f);
 425         fputc(' ', f);
 426
 427         switch (ini_kind) {
 428         case IR_INITIALIZER_CONST:
 429                 write_long(env, get_irn_node_nr(get_initializer_const_value(ini)));
 430                 break;
 431
 432         case IR_INITIALIZER_TARVAL:
 433                 write_tarval(env, get_initializer_tarval_value(ini));
 434                 break;
 435
 436         case IR_INITIALIZER_NULL:
 437                 break;
 438
 439         case IR_INITIALIZER_COMPOUND: {
 440                 size_t i, n = get_initializer_compound_n_entries(ini);
 441                 ir_fprintf(f, "%zu ", n);
 442                 for (i = 0; i < n; ++i)
 443                         write_initializer(env, get_initializer_compound_value(ini, i));
 444                 break;
 445         }
 446
 447         default:
 448                 panic("Unknown initializer kind");
 449         }
 450 }
 451
 452 static void write_pin_state(io_env_t *env, ir_node *irn)
 453 {
 454         fputs(get_op_pin_state_name(get_irn_pinned(irn)), env->file);
 455         fputc(' ', env->file);
 456 }
 457
 458 static void write_volatility(io_env_t *env, ir_volatility vol)
 459 {
 460         fputs(get_volatility_name(vol), env->file);
 461         fputc(' ', env->file);
 462 }
 463
 464 static void export_type_common(io_env_t *env, ir_type *tp)
 465 {
 466         fprintf(env->file, "\ttype %ld %s %u %u %s %u ",
 467                 get_type_nr(tp),
 468                 get_type_tpop_name(tp),
 469                 get_type_size_bytes(tp),
 470                 get_type_alignment_bytes(tp),
 471                 get_type_state_name(get_type_state(tp)),
 472                 tp->flags);
 473 }
 474
 475 static void export_type_pre(io_env_t *env, ir_type *tp)
 476 {
 477         FILE *f = env->file;
 478
 479         /* skip types to be handled by post walker */
 480         switch (get_type_tpop_code(tp)) {
 481         case tpo_array:
 482         case tpo_method:
 483         case tpo_pointer:
 484                 return;
 485         default:
 486                 break;
 487         }
 488
 489         export_type_common(env, tp);
 490
 491         switch (get_type_tpop_code(tp)) {
 492         case tpo_uninitialized:
 493                 panic("invalid type found");
 494
 495         case tpo_class:
 496                 write_ident_null(env, get_compound_ident(tp));
 497                 break;
 498
 499         case tpo_primitive:
 500                 write_mode(env, get_type_mode(tp));
 501                 break;
 502
 503         case tpo_union:
 504         case tpo_struct:
 505         case tpo_enumeration:
 506                 write_ident_null(env, get_compound_ident(tp));
 507                 break;
 508
 509         case tpo_array:
 510         case tpo_method:
 511         case tpo_pointer:
 512         case tpo_code:
 513         case tpo_none:
 514         case tpo_unknown:
 515                 break;
 516         }
 517         fputc('\n', f);
 518 }
 519
 520 static void export_type_post(io_env_t *env, ir_type *tp)
 521 {
 522         FILE *f = env->file;
 523         size_t i;
 524
 525         /* skip types already handled by pre walker */
 526         switch (get_type_tpop_code(tp)) {
 527         case tpo_class:
 528         case tpo_primitive:
 529         case tpo_struct:
 530         case tpo_union:
 531         case tpo_unknown:
 532         case tpo_uninitialized:
 533         case tpo_code:
 534         case tpo_none:
 535                 return;
 536         case tpo_array:
 537         case tpo_method:
 538         case tpo_pointer:
 539         case tpo_enumeration:
 540                 break;
 541         }
 542
 543         export_type_common(env, tp);
 544
 545         switch (get_type_tpop_code(tp)) {
 546         case tpo_array: {
 547                 size_t n = get_array_n_dimensions(tp);
 548                 ir_fprintf(f, "%zu %ld ", n, get_type_nr(get_array_element_type(tp)));
 549                 for (i = 0; i < n; i++) {
 550                         ir_node *lower = get_array_lower_bound(tp, i);
 551                         ir_node *upper = get_array_upper_bound(tp, i);
 552
 553                         if (is_Const(lower))
 554                                 write_long(env, get_tarval_long(get_Const_tarval(lower)));
 555                         else
 556                                 panic("Lower array bound is not constant");
 557
 558                         if (is_Const(upper))
 559                                 write_long(env, get_tarval_long(get_Const_tarval(upper)));
 560                         else if (is_Unknown(upper))
 561                                 fputs("unknown ", f);
 562                         else
 563                                 panic("Upper array bound is not constant");
 564                 }
 565                 break;
 566         }
 567
 568         case tpo_method: {
 569                 size_t nparams  = get_method_n_params(tp);
 570                 size_t nresults = get_method_n_ress(tp);
 571                 ir_fprintf(f, "%u %u %zu %zu ", get_method_calling_convention(tp),
 572                         get_method_additional_properties(tp), nparams, nresults);
 573                 for (i = 0; i < nparams; i++)
 574                         write_long(env, get_type_nr(get_method_param_type(tp, i)));
 575                 for (i = 0; i < nresults; i++)
 576                         write_long(env, get_type_nr(get_method_res_type(tp, i)));
 577                 ir_fprintf(f, "%u ", get_method_variadicity(tp));
 578                 break;
 579         }
 580
 581         case tpo_pointer:
 582                 write_mode(env, get_type_mode(tp));
 583                 write_long(env, get_type_nr(get_pointer_points_to_type(tp)));
 584                 break;
 585
 586         case tpo_enumeration:
 587                 fprintf(stderr, "Enumeration type not handled yet by exporter\n");
 588                 break;
 589
 590         default:
 591                 printf("export_type: Unknown type code \"%s\".\n",
 592                        get_type_tpop_name(tp));
 593                 break;
 594         }
 595         fputc('\n', f);
 596 }
 597
 598 static void export_entity(io_env_t *env, ir_entity *ent)
 599 {
 600         FILE          *file       = env->file;
 601         ir_type       *owner      = get_entity_owner(ent);
 602         ir_visibility  visibility = get_entity_visibility(ent);
 603         ir_linkage     linkage    = get_entity_linkage(ent);
 604
 605         /* we don't dump array_element_ent entities. They're a strange concept
 606          * and lead to cycles in type_graph.
 607          */
 608         if (is_Array_type(owner))
 609                 return;
 610
 611         fprintf(env->file, "\tentity ");
 612         write_long(env, get_entity_nr(ent));
 613         write_ident_null(env, get_entity_ident(ent));
 614         if (!entity_has_ld_ident(ent)) {
 615                 write_ident_null(env, NULL);
 616         } else {
 617                 write_ident_null(env, get_entity_ld_ident(ent));
 618         }
 619
 620         /* visibility + linkage */
 621         if (visibility != ir_visibility_default) {
 622                 fprintf(file, "%s ", get_visibility_name(visibility));
 623         }
 624         if (linkage & IR_LINKAGE_CONSTANT)
 625                 fputs("constant ", file);
 626         if (linkage & IR_LINKAGE_WEAK)
 627                 fputs("weak ", file);
 628         if (linkage & IR_LINKAGE_GARBAGE_COLLECT)
 629                 fputs("garbage_collect ", file);
 630         if (linkage & IR_LINKAGE_MERGE)
 631                 fputs("merge ", file);
 632         if (linkage & IR_LINKAGE_HIDDEN_USER)
 633                 fputs("hidden_user ", file);
 634
 635         fprintf(file, "%ld %ld %d %u %d %s ",
 636                         get_type_nr(get_entity_type(ent)),
 637                         get_type_nr(owner),
 638                         get_entity_offset(ent),
 639                         (unsigned) get_entity_offset_bits_remainder(ent),
 640                         is_entity_compiler_generated(ent),
 641                         get_volatility_name(get_entity_volatility(ent)));
 642
 643         if (ent->initializer != NULL) {
 644                 fputs("initializer ", env->file);
 645                 write_initializer(env, get_entity_initializer(ent));
 646         } else if (entity_has_compound_ent_values(ent)) {
 647                 size_t i, n = get_compound_ent_n_values(ent);
 648                 fputs("compoundgraph ", env->file);
 649                 ir_fprintf(env->file, "%zu ", n);
 650                 for (i = 0; i < n; i++) {
 651                         ir_entity *member = get_compound_ent_value_member(ent, i);
 652                         ir_node   *irn    = get_compound_ent_value(ent, i);
 653                         fprintf(env->file, "%ld %ld ", get_entity_nr(member), get_irn_node_nr(irn));
 654                 }
 655         } else {
 656                 fputs("none", env->file);
 657         }
 658
 659         fputc('\n', env->file);
 660 }
 661
 662 static void export_type_or_ent_pre(type_or_ent tore, void *ctx)
 663 {
 664         io_env_t *env = (io_env_t *) ctx;
 665         if (get_kind(tore.typ) == k_type)
 666                 export_type_pre(env, tore.typ);
 667 }
 668
 669 static void export_type_or_ent_post(type_or_ent tore, void *ctx)
 670 {
 671         io_env_t *env = (io_env_t *) ctx;
 672
 673         switch (get_kind(tore.ent)) {
 674         case k_entity:
 675                 export_entity(env, tore.ent);
 676                 break;
 677
 678         case k_type:
 679                 export_type_post(env, tore.typ);
 680                 break;
 681
 682         default:
 683                 panic("export_type_or_ent_post: Unknown type or entity.");
 684         }
 685 }
 686
 687 static void export_ASM(io_env_t *env, ir_node *node)
 688 {
 689         ir_asm_constraint *input_constraints    = get_ASM_input_constraints(node);
 690         ir_asm_constraint *output_constraints   = get_ASM_output_constraints(node);
 691         ident            **clobbers             = get_ASM_clobbers(node);
 692         int                n_input_constraints  = get_ASM_n_input_constraints(node);
 693         int                n_output_constraints = get_ASM_n_output_constraints(node);
 694         int                n_clobbers           = get_ASM_n_clobbers(node);
 695         int i;
 696
 697         write_ident(env, get_ASM_text(node));
 698         write_list_begin(env);
 699         for (i = 0; i < n_input_constraints; ++i) {
 700                 const ir_asm_constraint *constraint = &input_constraints[i];
 701                 write_unsigned(env, constraint->pos);
 702                 write_ident(env, constraint->constraint);
 703                 write_mode(env, constraint->mode);
 704         }
 705         write_list_end(env);
 706
 707         write_list_begin(env);
 708         for (i = 0; i < n_output_constraints; ++i) {
 709                 const ir_asm_constraint *constraint = &output_constraints[i];
 710                 write_unsigned(env, constraint->pos);
 711                 write_ident(env, constraint->constraint);
 712                 write_mode(env, constraint->mode);
 713         }
 714         write_list_end(env);
 715
 716         write_list_begin(env);
 717         for (i = 0; i < n_clobbers; ++i) {
 718                 ident *clobber = clobbers[i];
 719                 write_ident(env, clobber);
 720         }
 721         write_list_end(env);
 722 }
 723
 724 /**
 725  * Walker: exports every node.
 726  */
 727 static void export_node(ir_node *irn, void *ctx)
 728 {
 729         io_env_t *env = (io_env_t *) ctx;
 730         int i, n;
 731         unsigned opcode = get_irn_opcode(irn);
 732
 733         if (env->ignoreblocks && opcode == iro_Block)
 734                 return;
 735
 736         fprintf(env->file, "\t%s ", get_irn_opname(irn));
 737         write_long(env, get_irn_node_nr(irn));
 738
 739         write_list_begin(env);
 740         n = get_irn_arity(irn);
 741         if (!is_Block(irn)) {
 742                 ir_node *block = get_nodes_block(irn);
 743                 write_long(env, get_irn_node_nr(block));
 744         }
 745
 746         for (i = 0; i < n; i++) {
 747                 ir_node *pred = get_irn_n(irn, i);
 748                 if (pred == NULL) {
 749                         /* Anchor node may have NULL predecessors */
 750                         assert(is_Anchor(irn));
 751                         fputs("-1 ", env->file);
 752                 } else {
 753                         write_long(env, get_irn_node_nr(pred));
 754                 }
 755         }
 756         write_list_end(env);
 757
 758         fputs("{ ", env->file);
 759
 760         switch (opcode) {
 761         case iro_Start:
 762         case iro_End:
 763         case iro_Block:
 764         case iro_Anchor:
 765                 break;
 766         case iro_SymConst:
 767                 /* TODO: only symconst_addr_ent implemented yet */
 768                 assert(get_SymConst_kind(irn) == symconst_addr_ent);
 769                 fprintf(env->file, "%ld ", get_entity_nr(get_SymConst_entity(irn)));
 770                 write_mode(env, get_irn_mode(irn));
 771                 break;
 772         case iro_Proj:
 773                 write_mode(env, get_irn_mode(irn));
 774                 fprintf(env->file, "%ld ", get_Proj_proj(irn));
 775                 break;
 776         case iro_ASM:
 777                 export_ASM(env, irn);
 778                 break;
 779 #include "gen_irio_export.inl"
 780         default:
 781                 panic("no export code for node %+F\n", irn);
 782         }
 783         fputs("}\n", env->file);
 784 }
 785
 786 static void export_modes(io_env_t *env)
 787 {
 788         size_t i, n_modes = get_irp_n_modes();
 789
 790         fputs("modes {\n", env->file);
 791
 792         for (i = 0; i < n_modes; i++) {
 793                 ir_mode *mode = get_irp_mode(i);
 794
 795                 if (mode_is_int(mode)) {
 796                         fprintf(env->file, "\tint_mode ");
 797                         write_string(env, get_mode_name(mode));
 798                         fprintf(env->file, "%s %u %d %u ",
 799                                 get_mode_arithmetic_name(get_mode_arithmetic(mode)),
 800                                 get_mode_size_bits(mode), get_mode_sign(mode),
 801                                 get_mode_modulo_shift(mode));
 802                 } else if (mode_is_reference(mode)) {
 803                         fprintf(env->file, "\treference_mode ");
 804                         write_string(env, get_mode_name(mode));
 805                         fprintf(env->file, "%s %u %u ",
 806                                         get_mode_arithmetic_name(get_mode_arithmetic(mode)),
 807                                         get_mode_size_bits(mode),
 808                                         get_mode_modulo_shift(mode));
 809                         write_mode(env, get_reference_mode_signed_eq(mode));
 810                         write_mode(env, get_reference_mode_unsigned_eq(mode));
 811                         write_int(env, (mode == mode_P ? 1 : 0));
 812                 } else if (mode_is_float(mode)) {
 813                         fprintf(env->file, "\tfloat_mode ");
 814                         write_string(env, get_mode_name(mode));
 815                         fprintf(env->file, "%s %u %u ",
 816                                 get_mode_arithmetic_name(get_mode_arithmetic(mode)),
 817                                 get_mode_exponent_size(mode),
 818                                 get_mode_mantissa_size(mode));
 819                 } else {
 820                         /* skip "internal" modes */
 821                 }
 822                 fputc('\n', env->file);
 823         }
 824
 825         fputs("}\n", env->file);
 826 }
 827
 828 static void export_program(io_env_t *env)
 829 {
 830         FILE         *f = env->file;
 831         ir_segment_t  s;
 832
 833         fputs("\nprogram {\n", f);
 834         if (irp_prog_name_is_set()) {
 835                 fprintf(f, "\tname ");
 836                 write_string(env, get_irp_name());
 837                 fputc('\n', f);
 838         }
 839
 840         for (s = IR_SEGMENT_FIRST; s <= IR_SEGMENT_LAST; ++s) {
 841                 ir_type *segment_type = get_segment_type(s);
 842                 fprintf(f, "\tsegment_type %s ", get_segment_name(s));
 843                 if (segment_type == NULL) {
 844                         fputs(" NULL\n", f);
 845                 } else {
 846                         write_long(env, get_type_nr(segment_type));
 847                         fputc('\n', f);
 848                 }
 849         }
 850         fputs("}\n", f);
 851 }
 852
 853 void ir_export(const char *filename)
 854 {
 855         FILE *file = fopen(filename, "wt");
 856         if (file == NULL) {
 857                 perror(filename);
 858                 return;
 859         }
 860
 861         ir_export_file(file, filename);
 862         fclose(file);
 863 }
 864
 865 /* Exports the whole irp to the given file in a textual form. */
 866 void ir_export_file(FILE *file, const char *outputname)
 867 {
 868         io_env_t env;
 869         size_t i, n_irgs = get_irp_n_irgs();
 870
 871         (void) outputname;
 872         env.file = file;
 873
 874         export_modes(&env);
 875
 876         fputs("\ntypegraph {\n", env.file);
 877         type_walk_prog(export_type_or_ent_pre, export_type_or_ent_post, &env);
 878         fputs("}\n", env.file);
 879
 880         for (i = 0; i < n_irgs; i++) {
 881                 ir_graph *irg       = get_irp_irg(i);
 882
 883                 fprintf(env.file, "\nirg %ld %ld {\n",
 884                         get_entity_nr(get_irg_entity(irg)),
 885                         get_type_nr(get_irg_frame_type(irg)));
 886
 887                 env.ignoreblocks = 0;
 888                 irg_block_walk_graph(irg, NULL, export_node, &env);
 889
 890                 env.ignoreblocks = 1;
 891                 irg_walk_anchors(irg, NULL, export_node, &env);
 892
 893                 fputs("}\n", env.file);
 894         }
 895
 896         fprintf(env.file, "\nconstirg %ld {\n", get_irn_node_nr(get_const_code_irg()->current_block));
 897
 898         walk_const_code(NULL, export_node, &env);
 899         fputs("}\n", env.file);
 900
 901         export_program(&env);
 902 }
 903
 904 /* Exports the given irg to the given file. */
 905 void ir_export_irg(ir_graph *irg, FILE *file, const char *outputname)
 906 {
 907         io_env_t env;
 908
 909         (void) outputname;
 910         env.file = file;
 911
 912         export_modes(&env);
 913
 914         fputs("typegraph {\n", env.file);
 915
 916         type_walk_irg(irg, export_type_or_ent_pre, export_type_or_ent_post, &env);
 917
 918         fprintf(env.file, "}\n\nirg %ld {\n", get_entity_nr(get_irg_entity(irg)));
 919
 920         env.ignoreblocks = 0;
 921         irg_block_walk_graph(irg, NULL, export_node, &env);
 922
 923         env.ignoreblocks = 1;
 924         irg_walk_anchors(irg, NULL, export_node, &env);
 925
 926         /* TODO: Only output needed constants */
 927         fprintf(env.file, "}\n\nconstirg %ld {\n", get_irn_node_nr(get_const_code_irg()->current_block));
 928         walk_const_code(NULL, export_node, &env);
 929         fputs("}\n", env.file);
 930 }
 931
 932 static void read_c(io_env_t *env)
 933 {
 934         int c = fgetc(env->file);
 935         env->c = c;
 936         if (c == '\n')
 937                 env->line++;
 938 }
 939
 940 /** Returns the first non-whitespace character or EOF. **/
 941 static void skip_ws(io_env_t *env)
 942 {
 943         while (true) {
 944                 switch (env->c) {
 945                 case ' ':
 946                 case '\t':
 947                 case '\n':
 948                 case '\r':
 949                         read_c(env);
 950                         continue;
 951
 952                 default:
 953                         return;
 954                 }
 955         }
 956 }
 957
 958 static void skip_to(io_env_t *env, char to_ch)
 959 {
 960         while (env->c != to_ch && env->c != EOF) {
 961                 read_c(env);
 962         }
 963 }
 964
 965 static int expect_char(io_env_t *env, char ch)
 966 {
 967         skip_ws(env);
 968         if (env->c != ch) {
 969                 parse_error(env, "Unexpected char '%c', expected '%c'\n",
 970                             env->c, ch);
 971                 return 0;
 972         }
 973         read_c(env);
 974         return 1;
 975 }
 976
 977 #define EXPECT(c) if (expect_char(env, (c))) {} else return 0
 978
 979 static char *read_word(io_env_t *env)
 980 {
 981         skip_ws(env);
 982
 983         assert(obstack_object_size(&env->obst) == 0);
 984         while (true) {
 985                 int c = env->c;
 986                 switch (c) {
 987                 case EOF:
 988                 case ' ':
 989                 case '\t':
 990                 case '\n':
 991                 case '\r':
 992                         goto endofword;
 993
 994                 default:
 995                         obstack_1grow(&env->obst, c);
 996                         break;
 997                 }
 998                 read_c(env);
 999         }
1000
1001 endofword:
1002         obstack_1grow(&env->obst, '\0');
1003         return (char*)obstack_finish(&env->obst);
1004 }
1005
1006 static char *read_string(io_env_t *env)
1007 {
1008         skip_ws(env);
1009         if (env->c != '"') {
1010                 parse_error(env, "Expected string, got '%c'\n", env->c);
1011                 exit(1);
1012         }
1013         read_c(env);
1014
1015         assert(obstack_object_size(&env->obst) == 0);
1016         while (env->c != '"') {
1017                 if (env->c == EOF) {
1018                         parse_error(env, "Unexpected EOF while parsing string\n");
1019                         exit(1);
1020                 }
1021
1022                 if (env->c == '\\') {
1023                         read_c(env);
1024                         switch (env->c) {
1025                         case 'n':
1026                                 obstack_1grow(&env->obst, '\n');
1027                                 break;
1028                         case '"':
1029                         case '\\':
1030                                 obstack_1grow(&env->obst, env->c);
1031                                 break;
1032                         default:
1033                                 parse_error(env, "Unknown escape sequence '\\%c'\n", env->c);
1034                                 exit(1);
1035                         }
1036                 } else {
1037                         obstack_1grow(&env->obst, env->c);
1038                 }
1039                 read_c(env);
1040         }
1041         read_c(env);
1042         obstack_1grow(&env->obst, 0);
1043
1044         return (char*)obstack_finish(&env->obst);
1045 }
1046
1047 static ident *read_ident(io_env_t *env)
1048 {
1049         char  *str = read_string(env);
1050         ident *res = new_id_from_str(str);
1051         obstack_free(&env->obst, str);
1052         return res;
1053 }
1054
1055 /*
1056  * reads a "quoted string" or alternatively the token NULL
1057  */
1058 static char *read_string_null(io_env_t *env)
1059 {
1060         skip_ws(env);
1061         if (env->c == 'N') {
1062                 char *str = read_word(env);
1063                 if (strcmp(str, "NULL") == 0) {
1064                         obstack_free(&env->obst, str);
1065                         return NULL;
1066                 }
1067         } else if (env->c == '"') {
1068                 return read_string(env);
1069         }
1070
1071         parse_error(env, "Expected \"string\" or NULL\n");
1072         exit(1);
1073 }
1074
1075 static ident *read_ident_null(io_env_t *env)
1076 {
1077         ident *res;
1078         char  *str = read_string_null(env);
1079         if (str == NULL)
1080                 return NULL;
1081
1082         res = new_id_from_str(str);
1083         obstack_free(&env->obst, str);
1084         return res;
1085 }
1086
1087 static long read_long(io_env_t *env)
1088 {
1089         long  result;
1090         char *str;
1091
1092         skip_ws(env);
1093         if (!isdigit(env->c) && env->c != '-') {
1094                 parse_error(env, "Expected number, got '%c'\n", env->c);
1095                 exit(1);
1096         }
1097
1098         assert(obstack_object_size(&env->obst) == 0);
1099         do {
1100                 obstack_1grow(&env->obst, env->c);
1101                 read_c(env);
1102         } while (isdigit(env->c));
1103         obstack_1grow(&env->obst, 0);
1104
1105         str = (char*)obstack_finish(&env->obst);
1106         result = atol(str);
1107         obstack_free(&env->obst, str);
1108
1109         return result;
1110 }
1111
1112 static int read_int(io_env_t *env)
1113 {
1114         return (int) read_long(env);
1115 }
1116
1117 static unsigned read_unsigned(io_env_t *env)
1118 {
1119         return (unsigned) read_long(env);
1120 }
1121
1122 static size_t read_size_t(io_env_t *env)
1123 {
1124         /* FIXME */
1125         return (size_t) read_unsigned(env);
1126 }
1127
1128 static void expect_list_begin(io_env_t *env)
1129 {
1130         skip_ws(env);
1131         if (env->c != '[') {
1132                 parse_error(env, "Expected list, got '%c'\n", env->c);
1133                 exit(1);
1134         }
1135         read_c(env);
1136 }
1137
1138 static bool list_has_next(io_env_t *env)
1139 {
1140         if (feof(env->file)) {
1141                 parse_error(env, "Unexpected EOF while reading list");
1142                 exit(1);
1143         }
1144         skip_ws(env);
1145         if (env->c == ']') {
1146                 read_c(env);
1147                 return false;
1148         }
1149
1150         return true;
1151 }
1152
1153 static ir_node *get_node_or_null(io_env_t *env, long nodenr)
1154 {
1155         ir_node *node = (ir_node *) get_id(env, nodenr);
1156         if (node && node->kind != k_ir_node) {
1157                 panic("Irn ID %ld collides with something else in line %d\n",
1158                       nodenr, env->line);
1159         }
1160         return node;
1161 }
1162
1163 static ir_node *get_node_or_dummy(io_env_t *env, long nodenr)
1164 {
1165         ir_node *node = get_node_or_null(env, nodenr);
1166         if (node == NULL) {
1167                 node = new_r_Dummy(env->irg, mode_X);
1168                 set_id(env, nodenr, node);
1169         }
1170         return node;
1171 }
1172
1173 static ir_type *get_type(io_env_t *env, long typenr)
1174 {
1175         ir_type *type = (ir_type *) get_id(env, typenr);
1176         if (type == NULL)
1177                 panic("unknown type: %ld in line %d\n", typenr, env->line);
1178         else if (type->kind != k_type)
1179                 panic("type ID %ld collides with something else in line %d\n",
1180                       typenr, env->line);
1181         return type;
1182 }
1183
1184 static ir_type *read_type(io_env_t *env)
1185 {
1186         return get_type(env, read_long(env));
1187 }
1188
1189 static ir_entity *get_entity(io_env_t *env, long entnr)
1190 {
1191         ir_entity *entity = (ir_entity *) get_id(env, entnr);
1192         if (entity == NULL) {
1193                 parse_error(env, "unknown entity: %ld\n", entnr);
1194                 exit(1);
1195         } else if (entity->kind != k_entity) {
1196                 panic("Entity ID %ld collides with something else in line %d\n",
1197                       entnr, env->line);
1198         }
1199
1200         return entity;
1201 }
1202
1203 static ir_entity *read_entity(io_env_t *env)
1204 {
1205         return get_entity(env, read_long(env));
1206 }
1207
1208 static ir_mode *read_mode(io_env_t *env)
1209 {
1210         char *str = read_string(env);
1211         size_t i, n;
1212
1213         n = get_irp_n_modes();
1214         for (i = 0; i < n; i++) {
1215                 ir_mode *mode = get_irp_mode(i);
1216                 if (strcmp(str, get_mode_name(mode)) == 0) {
1217                         obstack_free(&env->obst, str);
1218                         return mode;
1219                 }
1220         }
1221
1222         parse_error(env, "unknown mode \"%s\"\n", str);
1223         exit(1);
1224 }
1225
1226 static const char *get_typetag_name(typetag_t typetag)
1227 {
1228         switch (typetag) {
1229         case tt_align:              return "align";
1230         case tt_allocation:         return "allocation";
1231         case tt_builtin:            return "builtin kind";
1232         case tt_cond_jmp_predicate: return "cond_jmp_predicate";
1233         case tt_initializer:        return "initializer kind";
1234         case tt_iro:                return "opcode";
1235         case tt_keyword:            return "keyword";
1236         case tt_linkage:            return "linkage";
1237         case tt_mode_arithmetic:    return "mode_arithmetic";
1238         case tt_pin_state:          return "pin state";
1239         case tt_segment:            return "segment";
1240         case tt_tpo:                return "type";
1241         case tt_type_state:         return "type state";
1242         case tt_volatility:         return "volatility";
1243         case tt_visibility:         return "visibility";
1244         }
1245         return "<UNKNOWN>";
1246 }
1247
1248 /**
1249  * Read and decode an enum constant.
1250  */
1251 static unsigned read_enum(io_env_t *env, typetag_t typetag)
1252 {
1253         char     *str  = read_word(env);
1254         unsigned  code = symbol(str, typetag);
1255
1256         if (code != SYMERROR) {
1257                 obstack_free(&env->obst, str);
1258                 return code;
1259         }
1260
1261         parse_error(env, "invalid %s: \"%s\"\n", get_typetag_name(typetag), str);
1262         return 0;
1263 }
1264
1265 #define read_align(env)              ((ir_align)              read_enum(env, tt_align))
1266 #define read_allocation(env)         ((ir_allocation)         read_enum(env, tt_allocation))
1267 #define read_builtin_kind(env)       ((ir_builtin_kind)       read_enum(env, tt_builtin))
1268 #define read_cond_jmp_predicate(env) ((cond_jmp_predicate)    read_enum(env, tt_cond_jmp_predicate))
1269 #define read_initializer_kind(env)   ((ir_initializer_kind_t) read_enum(env, tt_initializer))
1270 #define read_mode_arithmetic(env)    ((ir_mode_arithmetic)    read_enum(env, tt_mode_arithmetic))
1271 #define read_peculiarity(env)        ((ir_peculiarity)        read_enum(env, tt_peculiarity))
1272 #define read_pin_state(env)          ((op_pin_state)          read_enum(env, tt_pin_state))
1273 #define read_type_state(env)         ((ir_type_state)         read_enum(env, tt_type_state))
1274 #define read_variability(env)        ((ir_variability)        read_enum(env, tt_variability))
1275 #define read_volatility(env)         ((ir_volatility)         read_enum(env, tt_volatility))
1276
1277 static ir_tarval *read_tv(io_env_t *env)
1278 {
1279         ir_mode   *tvmode = read_mode(env);
1280         char      *str    = read_word(env);
1281         ir_tarval *tv     = new_tarval_from_str(str, strlen(str), tvmode);
1282         obstack_free(&env->obst, str);
1283
1284         return tv;
1285 }
1286
1287 static ir_initializer_t *read_initializer(io_env_t *env)
1288 {
1289         ir_initializer_kind_t ini_kind = read_initializer_kind(env);
1290
1291         switch (ini_kind) {
1292         case IR_INITIALIZER_CONST: {
1293                 ir_node *irn = get_node_or_dummy(env, read_long(env));
1294                 return create_initializer_const(irn);
1295         }
1296
1297         case IR_INITIALIZER_TARVAL:
1298                 return create_initializer_tarval(read_tv(env));
1299
1300         case IR_INITIALIZER_NULL:
1301                 return get_initializer_null();
1302
1303         case IR_INITIALIZER_COMPOUND: {
1304                 size_t i, n = read_size_t(env);
1305                 ir_initializer_t *ini = create_initializer_compound(n);
1306                 for (i = 0; i < n; i++) {
1307                         ir_initializer_t *curini = read_initializer(env);
1308                         set_initializer_compound_value(ini, i, curini);
1309                 }
1310                 return ini;
1311         }
1312
1313         default:
1314                 panic("Unknown initializer kind");
1315         }
1316 }
1317
1318
1319 /** Reads a type description and remembers it by its id. */
1320 static void import_type(io_env_t *env)
1321 {
1322         int            i;
1323         ir_type       *type;
1324         long           typenr = read_long(env);
1325         tp_opcode      tpop   = (tp_opcode) read_enum(env, tt_tpo);
1326         unsigned       size   = (unsigned) read_long(env);
1327         unsigned       align  = (unsigned) read_long(env);
1328         ir_type_state  state  = read_type_state(env);
1329         unsigned       flags  = (unsigned) read_long(env);
1330
1331         switch (tpop) {
1332         case tpo_array: {
1333                 int ndims = (int) read_long(env);
1334                 long elemtypenr = read_long(env);
1335                 ir_type *elemtype = get_type(env, elemtypenr);
1336
1337                 type = new_type_array(ndims, elemtype);
1338                 for (i = 0; i < ndims; i++) {
1339                         char *str = read_word(env);
1340                         if (strcmp(str, "unknown") != 0) {
1341                                 long lowerbound = atol(str);
1342                                 set_array_lower_bound_int(type, i, lowerbound);
1343                         }
1344                         obstack_free(&env->obst, str);
1345
1346                         str = read_word(env);
1347                         if (strcmp(str, "unknown") != 0) {
1348                                 long upperbound = atol(str);
1349                                 set_array_upper_bound_int(type, i, upperbound);
1350                         }
1351                         obstack_free(&env->obst, str);
1352                 }
1353                 set_type_size_bytes(type, size);
1354                 break;
1355         }
1356
1357         case tpo_class: {
1358                 ident *id = read_ident_null(env);
1359
1360                 if (typenr == (long) IR_SEGMENT_GLOBAL)
1361                         type = get_glob_type();
1362                 else
1363                         type = new_type_class(id);
1364                 set_type_size_bytes(type, size);
1365                 break;
1366         }
1367
1368         case tpo_method: {
1369                 unsigned                  callingconv = (unsigned) read_long(env);
1370                 mtp_additional_properties addprops    = (mtp_additional_properties) read_long(env);
1371                 int nparams          = (int)      read_long(env);
1372                 int nresults         = (int)      read_long(env);
1373                 int variadicity;
1374
1375                 type = new_type_method(nparams, nresults);
1376
1377                 for (i = 0; i < nparams; i++) {
1378                         long ptypenr = read_long(env);
1379                         ir_type *paramtype = get_type(env, ptypenr);
1380
1381                         set_method_param_type(type, i, paramtype);
1382                 }
1383                 for (i = 0; i < nresults; i++) {
1384                         long ptypenr = read_long(env);
1385                         ir_type *restype = get_type(env, ptypenr);
1386
1387                         set_method_res_type(type, i, restype);
1388                 }
1389
1390                 variadicity = (int) read_long(env);
1391                 set_method_variadicity(type, variadicity);
1392
1393                 set_method_calling_convention(type, callingconv);
1394                 set_method_additional_properties(type, addprops);
1395                 break;
1396         }
1397
1398         case tpo_pointer: {
1399                 ir_mode *mode     = read_mode(env);
1400                 ir_type *pointsto = get_type(env, read_long(env));
1401                 type = new_type_pointer(pointsto);
1402                 set_type_mode(type, mode);
1403                 break;
1404         }
1405
1406         case tpo_primitive: {
1407                 ir_mode *mode = read_mode(env);
1408                 type = new_type_primitive(mode);
1409                 break;
1410         }
1411
1412         case tpo_struct: {
1413                 ident *id = read_ident_null(env);
1414                 type = new_type_struct(id);
1415                 set_type_size_bytes(type, size);
1416                 break;
1417         }
1418
1419         case tpo_union: {
1420                 ident *id = read_ident_null(env);
1421                 type = new_type_union(id);
1422                 set_type_size_bytes(type, size);
1423                 break;
1424         }
1425
1426         case tpo_unknown:
1427                 return;   /* ignore unknown type */
1428
1429         default:
1430                 parse_error(env, "unknown type kind: \"%d\"\n", tpop);
1431                 skip_to(env, '\n');
1432                 return;
1433         }
1434
1435         set_type_alignment_bytes(type, align);
1436         type->flags = flags;
1437
1438         if (state == layout_fixed)
1439                 ARR_APP1(ir_type *, env->fixedtypes, type);
1440
1441         set_id(env, typenr, type);
1442 }
1443
1444 /** Reads an entity description and remembers it by its id. */
1445 static void import_entity(io_env_t *env)
1446 {
1447         long           entnr      = read_long(env);
1448         ident         *name       = read_ident(env);
1449         ident         *ld_name    = read_ident_null(env);
1450         ir_visibility  visibility = ir_visibility_default;
1451         ir_linkage     linkage    = IR_LINKAGE_DEFAULT;
1452         long           typenr;
1453         long           ownertypenr;
1454         const char    *str;
1455         ir_type       *type;
1456         ir_type       *ownertype;
1457         ir_entity     *entity;
1458
1459         skip_ws(env);
1460         while (!isdigit(env->c)) {
1461                 char     *vstr = read_word(env);
1462                 unsigned  v;
1463
1464                 skip_ws(env);
1465
1466                 v = symbol(vstr, tt_visibility);
1467                 if (v != SYMERROR) {
1468                         visibility = (ir_visibility)v;
1469                         continue;
1470                 }
1471                 v = symbol(vstr, tt_linkage);
1472                 if (v != SYMERROR) {
1473                         linkage |= (ir_linkage)v;
1474                         continue;
1475                 }
1476                 printf("Parser error, expected visibility or linkage, got '%s'\n",
1477                        vstr);
1478                 break;
1479         }
1480
1481         typenr      = read_long(env);
1482         ownertypenr = read_long(env);
1483
1484         type      = get_type(env, typenr);
1485         ownertype = !ownertypenr ? get_glob_type() : get_type(env, ownertypenr);
1486         entity    = new_entity(ownertype, name, type);
1487
1488         if (ld_name != NULL)
1489                 set_entity_ld_ident(entity, ld_name);
1490         set_entity_offset(entity, (int) read_long(env));
1491         set_entity_offset_bits_remainder(entity, (unsigned char) read_long(env));
1492         set_entity_compiler_generated(entity, (int) read_long(env));
1493         set_entity_volatility(entity, read_volatility(env));
1494         set_entity_visibility(entity, visibility);
1495         set_entity_linkage(entity, linkage);
1496
1497         str = read_word(env);
1498         if (strcmp(str, "initializer") == 0) {
1499                 set_entity_initializer(entity, read_initializer(env));
1500         } else if (strcmp(str, "compoundgraph") == 0) {
1501                 int n = (int) read_long(env);
1502                 int i;
1503                 for (i = 0; i < n; i++) {
1504                         ir_entity *member = get_entity(env, read_long(env));
1505                         ir_node   *irn    = get_node_or_dummy(env, read_long(env));
1506                         add_compound_ent_value(entity, irn, member);
1507                 }
1508         } else if (strcmp(str, "none") == 0) {
1509                 /* do nothing */
1510         } else {
1511                 parse_error(env, "expected 'initializer', 'compoundgraph' or 'none' got '%s'\n", str);
1512                 exit(1);
1513         }
1514
1515         set_id(env, entnr, entity);
1516 }
1517
1518 /** Parses the whole type graph. */
1519 static int parse_typegraph(io_env_t *env)
1520 {
1521         ir_graph *old_irg = env->irg;
1522         keyword_t kwkind;
1523
1524         EXPECT('{');
1525
1526         env->irg = get_const_code_irg();
1527
1528         /* parse all types first */
1529         while (true) {
1530                 skip_ws(env);
1531                 if (env->c == '}') {
1532                         read_c(env);
1533                         break;
1534                 }
1535
1536                 kwkind = (keyword_t) read_enum(env, tt_keyword);
1537                 switch (kwkind) {
1538                 case kw_type:
1539                         import_type(env);
1540                         break;
1541
1542                 case kw_entity:
1543                         import_entity(env);
1544                         break;
1545
1546                 default:
1547                         parse_error(env, "type graph element not supported yet: %d\n", kwkind);
1548                         skip_to(env, '\n');
1549                         break;
1550                 }
1551         }
1552         env->irg = old_irg;
1553         return 1;
1554 }
1555
1556 static int read_node_header(io_env_t *env, long *nodenr, ir_node ***preds,
1557                             const char **nodename)
1558 {
1559         int numpreds;
1560
1561         *nodename = read_word(env);
1562         *nodenr   = read_long(env);
1563
1564         ARR_RESIZE(ir_node*, *preds, 0);
1565
1566         expect_list_begin(env);
1567         for (numpreds = 0; list_has_next(env); numpreds++) {
1568                 long     val  = read_long(env);
1569                 ir_node *pred = get_node_or_dummy(env, val);
1570                 ARR_APP1(ir_node*, *preds, pred);
1571         }
1572
1573         return numpreds;
1574 }
1575
1576 static ir_node *read_ASM(io_env_t *env, int numpreds, ir_node **preds)
1577 {
1578         ir_node *newnode;
1579         ir_asm_constraint *input_constraints  = NEW_ARR_F(ir_asm_constraint, 0);
1580         ir_asm_constraint *output_constraints = NEW_ARR_F(ir_asm_constraint, 0);
1581         ident            **clobbers           = NEW_ARR_F(ident*, 0);
1582
1583         ident *asm_text = read_ident(env);
1584
1585         expect_list_begin(env);
1586         while (list_has_next(env)) {
1587                 ir_asm_constraint constraint;
1588                 constraint.pos        = read_unsigned(env);
1589                 constraint.constraint = read_ident(env);
1590                 constraint.mode       = read_mode(env);
1591                 ARR_APP1(ir_asm_constraint, input_constraints, constraint);
1592         }
1593
1594         expect_list_begin(env);
1595         while (list_has_next(env)) {
1596                 ir_asm_constraint constraint;
1597                 constraint.pos        = read_unsigned(env);
1598                 constraint.constraint = read_ident(env);
1599                 constraint.mode       = read_mode(env);
1600                 ARR_APP1(ir_asm_constraint, output_constraints, constraint);
1601         }
1602
1603         expect_list_begin(env);
1604         while (list_has_next(env)) {
1605                 ident *clobber = read_ident(env);
1606                 ARR_APP1(ident*, clobbers, clobber);
1607         }
1608
1609         assert(ARR_LEN(input_constraints) == (size_t)numpreds-1);
1610
1611         newnode = new_r_ASM(preds[0], numpreds-1, preds+1,
1612                         input_constraints,
1613                         ARR_LEN(output_constraints),
1614                         output_constraints,
1615                         ARR_LEN(clobbers),
1616                         clobbers,
1617                         asm_text);
1618         DEL_ARR_F(clobbers);
1619         DEL_ARR_F(output_constraints);
1620         DEL_ARR_F(input_constraints);
1621         return newnode;
1622 }
1623
1624 /** Parses an IRG. */
1625 static int parse_graph(io_env_t *env, ir_graph *irg)
1626 {
1627         ir_node   **preds = NEW_ARR_F(ir_node*,0);
1628         int         i, numpreds, ret = 1;
1629         long        nodenr;
1630         const char *nodename;
1631         ir_node    *node, *newnode;
1632
1633         env->irg = irg;
1634
1635         EXPECT('{');
1636
1637         while (true) {
1638                 skip_ws(env);
1639                 if (env->c == '}') {
1640                         read_c(env);
1641                         break;
1642                 }
1643
1644                 numpreds = read_node_header(env, &nodenr, &preds, &nodename);
1645
1646                 node = get_node_or_null(env, nodenr);
1647                 newnode = NULL;
1648
1649                 EXPECT('{');
1650
1651                 switch (symbol(nodename, tt_iro)) {
1652                 case iro_End: {
1653                         ir_node *newendblock = preds[0];
1654                         newnode = get_irg_end(irg);
1655                         exchange(get_nodes_block(newnode), newendblock);
1656                         for (i = 1; i < numpreds; i++)
1657                                 add_irn_n(newnode, preds[i]);
1658                         break;
1659                 }
1660
1661                 case iro_Start: {
1662                         ir_node *newstartblock = preds[0];
1663                         newnode = get_irg_start(irg);
1664                         exchange(get_nodes_block(newnode), newstartblock);
1665                         break;
1666                 }
1667
1668                 case iro_Block:
1669                         newnode = new_r_Block(irg, numpreds, preds);
1670                         break;
1671
1672                 case iro_Anchor:
1673                         newnode = irg->anchor;
1674                         for (i = 1; i < numpreds; i++)
1675                                 set_irn_n(newnode, i-1, preds[i]);
1676                         set_nodes_block(newnode, preds[0]);
1677                         break;
1678
1679                 case iro_SymConst: {
1680                         long entnr = read_long(env);
1681                         union symconst_symbol sym;
1682                         sym.entity_p = get_entity(env, entnr);
1683                         ir_mode *mode = read_mode(env);
1684                         newnode = new_r_SymConst(irg, mode, sym, symconst_addr_ent);
1685                         break;
1686                 }
1687
1688                 case iro_Proj: {
1689                         ir_mode *mode = read_mode(env);
1690                         long     pn   = read_long(env);
1691                         newnode = new_r_Proj(preds[1], mode, pn);
1692                         /* explicitely set block, since preds[1] might be a dummy node
1693                          * which is always in the startblock */
1694                         set_nodes_block(newnode, preds[0]);
1695                         break;
1696                 }
1697
1698                 case iro_ASM:
1699                         newnode = read_ASM(env, numpreds, preds);
1700                         break;
1701
1702                 #include "gen_irio_import.inl"
1703
1704                 default:
1705                         goto notsupported;
1706                 }
1707
1708                 EXPECT('}');
1709
1710                 if (!newnode) {
1711 notsupported:
1712                         parse_error(env, "node type not supported yet: %s\n", nodename);
1713                         abort();
1714                 }
1715
1716                 if (node)
1717                         exchange(node, newnode);
1718                 /* Always update hash entry to avoid more uses of id nodes */
1719                 set_id(env, nodenr, newnode);
1720         }
1721
1722         DEL_ARR_F(preds);
1723
1724         return ret;
1725 }
1726
1727 static int parse_modes(io_env_t *env)
1728 {
1729         EXPECT('{');
1730
1731         while (true) {
1732                 keyword_t kwkind;
1733
1734                 skip_ws(env);
1735                 if (env->c == '}') {
1736                         read_c(env);
1737                         break;
1738                 }
1739
1740                 kwkind = (keyword_t) read_enum(env, tt_keyword);
1741                 switch (kwkind) {
1742                 case kw_int_mode: {
1743                         const char *name = read_string(env);
1744                         ir_mode_arithmetic arith = read_mode_arithmetic(env);
1745                         int size = read_long(env);
1746                         int sign = read_long(env);
1747                         unsigned modulo_shift = read_long(env);
1748                         new_int_mode(name, arith, size, sign, modulo_shift);
1749                         break;
1750                 }
1751                 case kw_reference_mode: {
1752                         const char *name = read_string(env);
1753                         ir_mode_arithmetic arith = read_mode_arithmetic(env);
1754                         int size = read_long(env);
1755                         unsigned modulo_shift = read_long(env);
1756                         ir_mode *mode = new_reference_mode(name, arith, size, modulo_shift);
1757                         set_reference_mode_signed_eq(mode, read_mode(env));
1758                         set_reference_mode_unsigned_eq(mode, read_mode(env));
1759                         int is_mode_P = read_int(env);
1760                         if (is_mode_P) {
1761                                 set_modeP_data(mode);
1762                                 set_modeP_code(mode);
1763                         }
1764                         break;
1765                 }
1766                 case kw_float_mode: {
1767                         const char *name = read_string(env);
1768                         ir_mode_arithmetic arith = read_mode_arithmetic(env);
1769                         int exponent_size = read_long(env);
1770                         int mantissa_size = read_long(env);
1771                         new_float_mode(name, arith, exponent_size, mantissa_size);
1772                         break;
1773                 }
1774
1775                 default:
1776                         skip_to(env, '\n');
1777                         break;
1778                 }
1779         }
1780         return 1;
1781 }
1782
1783 static int parse_program(io_env_t *env)
1784 {
1785         EXPECT('{');
1786
1787         while (true) {
1788                 keyword_t kwkind;
1789
1790                 skip_ws(env);
1791                 if (env->c == '}') {
1792                         read_c(env);
1793                         break;
1794                 }
1795
1796                 kwkind = (keyword_t) read_enum(env, tt_keyword);
1797                 switch (kwkind) {
1798                 case kw_segment_type: {
1799                         ir_segment_t  segment = (ir_segment_t) read_enum(env, tt_segment);
1800                         ir_type      *type    = read_type(env);
1801                         set_segment_type(segment, type);
1802                         break;
1803                 }
1804                 default:
1805                         parse_error(env, "unexpected keyword %d\n", kwkind);
1806                         skip_to(env, '\n');
1807                 }
1808         }
1809         return 1;
1810 }
1811
1812 void ir_import(const char *filename)
1813 {
1814         FILE *file = fopen(filename, "rt");
1815         if (file == NULL) {
1816                 perror(filename);
1817                 exit(1);
1818         }
1819
1820         ir_import_file(file, filename);
1821
1822         fclose(file);
1823 }
1824
1825 void ir_import_file(FILE *input, const char *inputname)
1826 {
1827         int oldoptimize = get_optimize();
1828         firm_verification_t oldver = get_node_verification_mode();
1829         io_env_t ioenv;
1830         io_env_t *env = &ioenv;
1831         size_t i, n;
1832
1833         symtbl_init();
1834
1835         memset(env, 0, sizeof(*env));
1836         obstack_init(&env->obst);
1837         env->idset      = new_set(id_cmp, 128);
1838         env->fixedtypes = NEW_ARR_F(ir_type *, 0);
1839         env->inputname  = inputname;
1840         env->file       = input;
1841         env->line       = 1;
1842
1843         /* read first character */
1844         read_c(env);
1845
1846         set_optimize(0);
1847         do_node_verification(FIRM_VERIFICATION_OFF);
1848
1849         while (true) {
1850                 keyword_t kw;
1851
1852                 skip_ws(env);
1853                 if (env->c == EOF)
1854                         break;
1855
1856                 kw = (keyword_t)read_enum(env, tt_keyword);
1857                 switch (kw) {
1858                 case kw_modes:
1859                         if (!parse_modes(env)) goto end;
1860                         break;
1861
1862                 case kw_typegraph:
1863                         if (!parse_typegraph(env)) goto end;
1864                         break;
1865
1866                 case kw_irg:
1867                 {
1868                         ir_entity *irgent = get_entity(env, read_long(env));
1869                         ir_graph *irg = new_ir_graph(irgent, 0);
1870                         set_irg_frame_type(irg, get_type(env, read_long(env)));
1871                         if (!parse_graph(env, irg)) goto end;
1872                         break;
1873                 }
1874
1875                 case kw_constirg: {
1876                         ir_graph *constirg = get_const_code_irg();
1877                         long bodyblockid = read_long(env);
1878                         set_id(env, bodyblockid, constirg->current_block);
1879                         if (!parse_graph(env, constirg)) goto end;
1880                         break;
1881                 }
1882
1883                 case kw_program:
1884                         parse_program(env);
1885                         break;
1886
1887                 default: {
1888                         parse_error(env, "Unexpected keyword %d at toplevel\n", kw);
1889                         exit(1);
1890                 }
1891                 }
1892         }
1893
1894 end:
1895         n = ARR_LEN(env->fixedtypes);
1896         for (i = 0; i < n; i++)
1897                 set_type_state(env->fixedtypes[i], layout_fixed);
1898
1899         DEL_ARR_F(env->fixedtypes);
1900
1901         del_set(env->idset);
1902
1903         irp_finalize_cons();
1904
1905         do_node_verification(oldver);
1906         set_optimize(oldoptimize);
1907
1908         obstack_free(&env->obst, NULL);
1909 }