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
  30 #include "irio.h"
  31
  32 #include "irnode_t.h"
  33 #include "irprog.h"
  34 #include "irgraph_t.h"
  35 #include "ircons.h"
  36 #include "irgmod.h"
  37 #include "irflag_t.h"
  38 #include "irgwalk.h"
  39 #include "tv.h"
  40 #include "array.h"
  41 #include "error.h"
  42 #include "adt/set.h"
  43
  44 #define SYMERROR ((unsigned) ~0)
  45
  46 typedef struct io_env_t
  47 {
  48         FILE *file;
  49         set *idset;               /**< id_entry set, which maps from file ids to new Firm elements */
  50         int ignoreblocks;
  51         int line, col;
  52         ir_type **fixedtypes;
  53 } io_env_t;
  54
  55 typedef struct lex_state_t
  56 {
  57         long offs;
  58         int line, col;
  59 } lex_state_t;
  60
  61 typedef enum typetag_t
  62 {
  63         tt_align,
  64         tt_allocation,
  65         tt_builtin,
  66         tt_initializer,
  67         tt_iro,
  68         tt_peculiarity,
  69         tt_pin_state,
  70         tt_tpo,
  71         tt_type_state,
  72         tt_variability,
  73         tt_visibility,
  74         tt_volatility
  75 } typetag_t;
  76
  77 typedef struct symbol_t
  78 {
  79         const char *str;      /**< The name of this symbol. */
  80         typetag_t   typetag;  /**< The type tag of this symbol. */
  81         unsigned    code;     /**< The value of this symbol. */
  82 } symbol_t;
  83
  84 typedef struct id_entry
  85 {
  86         long id;
  87         void *elem;
  88 } id_entry;
  89
  90 /** The symbol table, a set of symbol_t elements. */
  91 static set *symtbl;
  92
  93
  94 /**
  95  * Calculate a hash value for a string.
  96  */
  97 static unsigned string_hash(const char *str, int len)
  98 {
  99         return str[0] * 27893 ^ str[len-1] * 81 ^ str[len >> 1];
 100 }
 101
 102 /**
 103  * Compare two symbol table entries.
 104  */
 105 static int symbol_cmp(const void *elt, const void *key, size_t size)
 106 {
 107         const symbol_t *entry = (const symbol_t *) elt;
 108         const symbol_t *keyentry = (const symbol_t *) key;
 109         (void) size;
 110         return strcmp(entry->str, keyentry->str);
 111 }
 112
 113 static int id_cmp(const void *elt, const void *key, size_t size)
 114 {
 115         const id_entry *entry = (const id_entry *) elt;
 116         const id_entry *keyentry = (const id_entry *) key;
 117         (void) size;
 118         return entry->id - keyentry->id;
 119 }
 120
 121 /** Initializes the symbol table. May be called more than once without problems. */
 122 static void symtbl_init(void)
 123 {
 124         symbol_t key;
 125
 126         /* Only initialize once */
 127         if(symtbl != NULL)
 128                 return;
 129
 130         symtbl = new_set(symbol_cmp, 256);
 131
 132 #define INSERT(s, tt, cod)                                       \
 133         key.str = (s);                                               \
 134         key.typetag = (tt);                                          \
 135         key.code = (cod);                                            \
 136         set_insert(symtbl, &key, sizeof(key), string_hash(s, sizeof(s)-1))
 137
 138 #define INSERTENUM(tt, e) INSERT(#e, tt, e)
 139
 140         INSERT("array", tt_tpo, tpo_array);
 141         INSERT("class", tt_tpo, tpo_class);
 142         INSERT("method", tt_tpo, tpo_method);
 143         INSERT("pointer", tt_tpo, tpo_pointer);
 144         INSERT("primitive", tt_tpo, tpo_primitive);
 145         INSERT("struct", tt_tpo, tpo_struct);
 146         INSERT("Unknown", tt_tpo, tpo_unknown);
 147
 148 #include "gen_irio_lex.inl"
 149
 150         INSERTENUM(tt_align, align_non_aligned);
 151         INSERTENUM(tt_align, align_is_aligned);
 152
 153         INSERTENUM(tt_allocation, allocation_automatic);
 154         INSERTENUM(tt_allocation, allocation_parameter);
 155         INSERTENUM(tt_allocation, allocation_dynamic);
 156         INSERTENUM(tt_allocation, allocation_static);
 157
 158         INSERTENUM(tt_pin_state, op_pin_state_floats);
 159         INSERTENUM(tt_pin_state, op_pin_state_pinned);
 160         INSERTENUM(tt_pin_state, op_pin_state_exc_pinned);
 161         INSERTENUM(tt_pin_state, op_pin_state_mem_pinned);
 162
 163         INSERTENUM(tt_type_state, layout_undefined);
 164         INSERTENUM(tt_type_state, layout_fixed);
 165
 166         INSERTENUM(tt_variability, variability_uninitialized);
 167         INSERTENUM(tt_variability, variability_initialized);
 168         INSERTENUM(tt_variability, variability_part_constant);
 169         INSERTENUM(tt_variability, variability_constant);
 170
 171         INSERTENUM(tt_visibility, visibility_local);
 172         INSERTENUM(tt_visibility, visibility_external_visible);
 173         INSERTENUM(tt_visibility, visibility_external_allocated);
 174
 175         INSERTENUM(tt_volatility, volatility_non_volatile);
 176         INSERTENUM(tt_volatility, volatility_is_volatile);
 177
 178         INSERTENUM(tt_peculiarity, peculiarity_description);
 179         INSERTENUM(tt_peculiarity, peculiarity_inherited);
 180         INSERTENUM(tt_peculiarity, peculiarity_existent);
 181
 182         INSERTENUM(tt_initializer, IR_INITIALIZER_CONST);
 183         INSERTENUM(tt_initializer, IR_INITIALIZER_TARVAL);
 184         INSERTENUM(tt_initializer, IR_INITIALIZER_NULL);
 185         INSERTENUM(tt_initializer, IR_INITIALIZER_COMPOUND);
 186
 187         INSERTENUM(tt_builtin, ir_bk_trap);
 188         INSERTENUM(tt_builtin, ir_bk_debugbreak);
 189         INSERTENUM(tt_builtin, ir_bk_return_address);
 190         INSERTENUM(tt_builtin, ir_bk_frame_addess);
 191         INSERTENUM(tt_builtin, ir_bk_prefetch);
 192         INSERTENUM(tt_builtin, ir_bk_ffs);
 193         INSERTENUM(tt_builtin, ir_bk_clz);
 194         INSERTENUM(tt_builtin, ir_bk_ctz);
 195         INSERTENUM(tt_builtin, ir_bk_popcount);
 196         INSERTENUM(tt_builtin, ir_bk_parity);
 197         INSERTENUM(tt_builtin, ir_bk_bswap);
 198         INSERTENUM(tt_builtin, ir_bk_inport);
 199         INSERTENUM(tt_builtin, ir_bk_outport);
 200         INSERTENUM(tt_builtin, ir_bk_inner_trampoline);
 201
 202 #undef INSERTENUM
 203 #undef INSERT
 204 }
 205
 206 /** Returns the according symbol value for the given string and tag, or SYMERROR if none was found. */
 207 static unsigned symbol(const char *str, typetag_t typetag)
 208 {
 209         symbol_t key, *entry;
 210
 211         key.str = str;
 212
 213         entry = set_find(symtbl, &key, sizeof(key), string_hash(str, strlen(str)));
 214         if (entry && entry->typetag == typetag) {
 215                 return entry->code;
 216         }
 217         return SYMERROR;
 218 }
 219
 220 static void *get_id(io_env_t *env, long id)
 221 {
 222         id_entry key, *entry;
 223         key.id = id;
 224
 225         entry = set_find(env->idset, &key, sizeof(key), (unsigned) id);
 226         return entry ? entry->elem : NULL;
 227 }
 228
 229 static void set_id(io_env_t *env, long id, void *elem)
 230 {
 231         id_entry key;
 232         key.id = id;
 233         key.elem = elem;
 234         set_insert(env->idset, &key, sizeof(key), (unsigned) id);
 235 }
 236
 237 static void write_mode(io_env_t *env, ir_mode *mode)
 238 {
 239         fputs(get_mode_name(mode), env->file);
 240         fputc(' ', env->file);
 241 }
 242
 243 static void write_tarval(io_env_t *env, tarval *tv)
 244 {
 245         char buf[1024];
 246         write_mode(env, get_tarval_mode(tv));
 247         tarval_snprintf(buf, sizeof(buf), tv);
 248         fputs(buf, env->file);
 249         fputc(' ', env->file);
 250 }
 251
 252 static void write_pin_state(io_env_t *env, ir_node *irn)
 253 {
 254         fputs(get_op_pin_state_name(get_irn_pinned(irn)), env->file);
 255         fputc(' ', env->file);
 256 }
 257
 258 static void write_volatility(io_env_t *env, ir_node *irn)
 259 {
 260         ir_volatility vol;
 261
 262         if(is_Load(irn)) vol = get_Load_volatility(irn);
 263         else if(is_Store(irn)) vol = get_Store_volatility(irn);
 264         else assert(0 && "Invalid optype for write_volatility");
 265
 266         fputs(get_volatility_name(vol), env->file);
 267         fputc(' ', env->file);
 268 }
 269
 270 static void write_align(io_env_t *env, ir_node *irn)
 271 {
 272         ir_align align;
 273
 274         if(is_Load(irn)) align = get_Load_align(irn);
 275         else if(is_Store(irn)) align = get_Store_align(irn);
 276         else assert(0 && "Invalid optype for write_align");
 277
 278         fputs(get_align_name(align), env->file);
 279         fputc(' ', env->file);
 280 }
 281
 282 static void write_builtin_kind(io_env_t *env, ir_node *irn)
 283 {
 284         fputs(get_builtin_kind_name(get_Builtin_kind(irn)), env->file);
 285         fputc(' ', env->file);
 286 }
 287
 288 static void write_initializer(io_env_t *env, ir_initializer_t *ini)
 289 {
 290         FILE *f = env->file;
 291         ir_initializer_kind_t ini_kind = get_initializer_kind(ini);
 292
 293         fputs(get_initializer_kind_name(ini_kind), f);
 294         fputc(' ', f);
 295
 296         switch(ini_kind)
 297         {
 298                 case IR_INITIALIZER_CONST:
 299                         fprintf(f, "%ld ", get_irn_node_nr(get_initializer_const_value(ini)));
 300                         break;
 301
 302                 case IR_INITIALIZER_TARVAL:
 303                         write_tarval(env, get_initializer_tarval_value(ini));
 304                         break;
 305
 306                 case IR_INITIALIZER_NULL:
 307                         break;
 308
 309                 case IR_INITIALIZER_COMPOUND:
 310                 {
 311                         unsigned i, n = get_initializer_compound_n_entries(ini);
 312                         fprintf(f, "%d ", n);
 313                         for(i = 0; i < n; i++)
 314                                 write_initializer(env, get_initializer_compound_value(ini, i));
 315                         break;
 316                 }
 317
 318                 default:
 319                         panic("Unknown initializer kind");
 320         }
 321 }
 322
 323 static void export_type(io_env_t *env, ir_type *tp)
 324 {
 325         FILE *f = env->file;
 326         int i;
 327         fprintf(f, "\ttype %ld %s \"%s\" %u %u %s %s ",
 328                         get_type_nr(tp),
 329                         get_type_tpop_name(tp),
 330                         get_type_name(tp),
 331                         get_type_size_bytes(tp),
 332                         get_type_alignment_bytes(tp),
 333                         get_type_state_name(get_type_state(tp)),
 334                         get_visibility_name(get_type_visibility(tp)));
 335
 336         switch(get_type_tpop_code(tp))
 337         {
 338                 case tpo_array:
 339                 {
 340                         int n = get_array_n_dimensions(tp);
 341                         fprintf(f, "%i %ld ", n, get_type_nr(get_array_element_type(tp)));
 342                         for(i = 0; i < n; i++)
 343                         {
 344                                 ir_node *lower = get_array_lower_bound(tp, i);
 345                                 ir_node *upper = get_array_upper_bound(tp, i);
 346
 347                                 if(is_Const(lower)) fprintf(f, "%ld ", get_tarval_long(get_Const_tarval(lower)));
 348                                 else panic("Lower array bound is not constant");
 349
 350                                 if(is_Const(upper)) fprintf(f, "%ld ", get_tarval_long(get_Const_tarval(upper)));
 351                                 else if(is_Unknown(upper)) fputs("unknown ", f);
 352                                 else panic("Upper array bound is not constant");
 353                         }
 354                         break;
 355                 }
 356
 357                 case tpo_class:
 358                         /* TODO: inheritance stuff not supported yet */
 359                         printf("Inheritance of classes not supported yet!\n");
 360                         break;
 361
 362                 case tpo_method:
 363                 {
 364                         int nparams = get_method_n_params(tp);
 365                         int nresults = get_method_n_ress(tp);
 366                         fprintf(f, "%i %i ", nparams, nresults);
 367                         for(i = 0; i < nparams; i++)
 368                                 fprintf(f, "%ld ", get_type_nr(get_method_param_type(tp, i)));
 369                         for(i = 0; i < nresults; i++)
 370                                 fprintf(f, "%ld ", get_type_nr(get_method_res_type(tp, i)));
 371                         break;
 372                 }
 373
 374                 case tpo_pointer:
 375                         write_mode(env, get_type_mode(tp));
 376                         fprintf(f, "%ld ", get_type_nr(get_pointer_points_to_type(tp)));
 377                         break;
 378
 379                 case tpo_primitive:
 380                         write_mode(env, get_type_mode(tp));
 381                         break;
 382
 383                 case tpo_struct:
 384                         break;
 385
 386                 case tpo_unknown:
 387                         break;
 388
 389                 default:
 390                         printf("export_type: Unknown type code \"%s\".\n", get_type_tpop_name(tp));
 391                         break;
 392         }
 393         fputc('\n', f);
 394 }
 395
 396 static void export_entity(io_env_t *env, ir_entity *ent)
 397 {
 398         ir_type *owner = get_entity_owner(ent);
 399         fprintf(env->file, "\tentity %ld \"%s\" \"%s\" %ld %ld %d %u %s %s %s %s %s ",
 400                         get_entity_nr(ent),
 401                         get_entity_name(ent),
 402                         ent->ld_name ? get_id_str(ent->ld_name) : "",
 403                         get_type_nr(get_entity_type(ent)),
 404                         get_type_nr(owner),
 405                         get_entity_offset(ent),
 406                         (unsigned) get_entity_offset_bits_remainder(ent),
 407                         get_allocation_name(get_entity_allocation(ent)),
 408                         get_visibility_name(get_entity_visibility(ent)),
 409                         get_variability_name(get_entity_variability(ent)),
 410                         get_peculiarity_name(get_entity_peculiarity(ent)),
 411                         get_volatility_name(get_entity_volatility(ent)));
 412
 413         // TODO: inheritance stuff for class entities not supported yet
 414         if(is_Class_type(owner) && owner != get_glob_type())
 415                 printf("Inheritance of class entities not supported yet!\n");
 416
 417         if(get_entity_variability(ent) != variability_uninitialized
 418                 && get_entity_visibility(ent) != visibility_external_allocated)
 419         {
 420                 if(is_compound_entity(ent))
 421                 {
 422                         if(has_entity_initializer(ent))
 423                         {
 424                                 fputs("initializer ", env->file);
 425                                 write_initializer(env, get_entity_initializer(ent));
 426                         }
 427                         else
 428                         {
 429                                 int i, n = get_compound_ent_n_values(ent);
 430                                 fputs("noninitializer ", env->file);
 431                                 fprintf(env->file, "%d ", n);
 432                                 for(i = 0; i < n; i++)
 433                                 {
 434                                         ir_entity *member = get_compound_ent_value_member(ent, i);
 435                                         ir_node   *irn    = get_compound_ent_value(ent, i);
 436                                         fprintf(env->file, "%ld %ld ", get_entity_nr(member), get_irn_node_nr(irn));
 437                                 }
 438                         }
 439                 }
 440                 else
 441                 {
 442                         ir_node *irn = get_atomic_ent_value(ent);
 443                         fprintf(env->file, "%ld ", get_irn_node_nr(irn));
 444                 }
 445         }
 446
 447         fputc('\n', env->file);
 448 }
 449
 450 static void export_type_or_ent(type_or_ent tore, void *ctx)
 451 {
 452         io_env_t *env = (io_env_t *) ctx;
 453
 454         switch(get_kind(tore.ent))
 455         {
 456                 case k_entity:
 457                         export_entity(env, tore.ent);
 458                         break;
 459
 460                 case k_type:
 461                         export_type(env, tore.typ);
 462                         break;
 463
 464                 default:
 465                         printf("export_type_or_ent: Unknown type or entity.\n");
 466                         break;
 467         }
 468 }
 469
 470 static void export_node(ir_node *irn, void *ctx)
 471 {
 472         io_env_t *env = (io_env_t *) ctx;
 473         int i, n;
 474         unsigned opcode = get_irn_opcode(irn);
 475
 476         if(env->ignoreblocks && opcode == iro_Block)
 477                 return;
 478
 479         n = get_irn_arity(irn);
 480
 481         fprintf(env->file, "\t%s %ld [ ", get_irn_opname(irn), get_irn_node_nr(irn));
 482
 483         for(i = -1; i < n; i++)
 484         {
 485                 ir_node *pred = get_irn_n(irn, i);
 486                 if(pred == NULL) {
 487                         /* Anchor node may have NULL predecessors */
 488                         assert(is_Anchor(irn));
 489                         fputs("-1 ", env->file);
 490                 } else {
 491                         fprintf(env->file, "%ld ", get_irn_node_nr(pred));
 492                 }
 493         }
 494
 495         fprintf(env->file, "] { ");
 496
 497         switch(opcode)
 498         {
 499                 #include "gen_irio_export.inl"
 500         }
 501         fputs("}\n", env->file);
 502 }
 503
 504 /** Exports the whole irp to the given file in a textual form. */
 505 void ir_export(const char *filename)
 506 {
 507         io_env_t env;
 508         int i, n_irgs = get_irp_n_irgs(), n_pseudoirgs = get_irp_n_pseudo_irgs();
 509
 510         env.file = fopen(filename, "wt");
 511         if(!env.file)
 512         {
 513                 perror(filename);
 514                 return;
 515         }
 516
 517         fputs("typegraph {\n", env.file);
 518
 519         type_walk_plus_frames(NULL, export_type_or_ent, &env);
 520         /* TODO: Visit frame types and "types for value params"? */
 521
 522         for(i = 0; i < n_irgs; i++)
 523         {
 524                 ir_graph *irg = get_irp_irg(i);
 525
 526                 fprintf(env.file, "}\n\nirg %ld {\n", get_entity_nr(get_irg_entity(irg)));
 527
 528                 env.ignoreblocks = 0;
 529                 irg_block_walk_graph(irg, NULL, export_node, &env);
 530
 531                 env.ignoreblocks = 1;
 532                 irg_walk_anchors(irg, NULL, export_node, &env);
 533         }
 534
 535         fputs("}\n\nconstirg {\n", env.file);
 536         walk_const_code(NULL, export_node, &env);
 537         fputs("}\n", env.file);
 538
 539         fclose(env.file);
 540 }
 541
 542 /** Exports the given irg to the given file. */
 543 void ir_export_irg(ir_graph *irg, const char *filename)
 544 {
 545         io_env_t env;
 546
 547         env.file = fopen(filename, "wt");
 548         if(!env.file)
 549         {
 550                 perror(filename);
 551                 return;
 552         }
 553
 554         fputs("typegraph {\n", env.file);
 555
 556         type_walk_irg(irg, NULL, export_type_or_ent, &env);
 557
 558         fprintf(env.file, "}\n\nirg %ld {\n", get_entity_nr(get_irg_entity(irg)));
 559
 560         env.ignoreblocks = 0;
 561         irg_block_walk_graph(irg, NULL, export_node, &env);
 562
 563         env.ignoreblocks = 1;
 564         irg_walk_anchors(irg, NULL, export_node, &env);
 565
 566         /* TODO: Only output needed constants */
 567         fputs("}\n\nconstirg {\n", env.file);
 568         walk_const_code(NULL, export_node, &env);
 569         fputs("}\n", env.file);
 570
 571         fclose(env.file);
 572 }
 573
 574 static void save_lex_state(io_env_t *env, lex_state_t *state)
 575 {
 576         state->offs = ftell(env->file);
 577         state->line = env->line;
 578         state->col  = env->col;
 579 }
 580
 581 static void restore_lex_state(io_env_t *env, lex_state_t *state)
 582 {
 583         fseek(env->file, state->offs, SEEK_SET);
 584         env->line = state->line;
 585         env->col  = state->col;
 586 }
 587
 588 static int read_c(io_env_t *env)
 589 {
 590         int ch = fgetc(env->file);
 591         switch(ch)
 592         {
 593                 case '\t':
 594                         env->col += 4;
 595                         break;
 596
 597                 case '\n':
 598                         env->col = 0;
 599                         env->line++;
 600                         break;
 601
 602                 default:
 603                         env->col++;
 604                         break;
 605         }
 606         return ch;
 607 }
 608
 609 /** Returns the first non-whitespace character or EOF. **/
 610 static int skip_ws(io_env_t *env)
 611 {
 612         while(1)
 613         {
 614                 int ch = read_c(env);
 615                 switch(ch)
 616                 {
 617                         case ' ':
 618                         case '\t':
 619                         case '\n':
 620                         case '\r':
 621                                 break;
 622
 623                         default:
 624                                 return ch;
 625                 }
 626         }
 627 }
 628
 629 static void skip_to(io_env_t *env, char to_ch)
 630 {
 631         int ch;
 632         do
 633         {
 634                 ch = read_c(env);
 635         }
 636         while(ch != to_ch && ch != EOF);
 637 }
 638
 639 static int expect_char(io_env_t *env, char ch)
 640 {
 641         int curch = skip_ws(env);
 642         if(curch != ch)
 643         {
 644                 printf("Unexpected char '%c', expected '%c' in line %i:%i\n", curch, ch, env->line, env->col);
 645                 return 0;
 646         }
 647         return 1;
 648 }
 649
 650 #define EXPECT(c) if(expect_char(env, (c))) {} else return 0
 651 #define EXPECT_OR_EXIT(c) if(expect_char(env, (c))) {} else exit(1)
 652
 653 inline static const char *read_str_to(io_env_t *env, char *buf, size_t bufsize)
 654 {
 655         size_t i;
 656         for(i = 0; i < bufsize - 1; i++)
 657         {
 658                 int ch = read_c(env);
 659                 if(ch == EOF) break;
 660                 switch(ch)
 661                 {
 662                         case ' ':
 663                         case '\t':
 664                         case '\n':
 665                         case '\r':
 666                                 if(i != 0)
 667                                         goto endofword;
 668                                 i--;    // skip whitespace
 669                                 break;
 670
 671                         default:
 672                                 buf[i] = ch;
 673                                 break;
 674                 }
 675         }
 676 endofword:
 677         buf[i] = 0;
 678         return buf;
 679 }
 680
 681 static const char *read_str(io_env_t *env)
 682 {
 683         static char buf[1024];
 684         return read_str_to(env, buf, sizeof(buf));
 685 }
 686
 687 static const char *read_qstr_to(io_env_t *env, char *buf, size_t bufsize)
 688 {
 689         size_t i;
 690         EXPECT_OR_EXIT('\"');
 691         for(i = 0; i < bufsize - 1; i++)
 692         {
 693                 int ch = read_c(env);
 694                 if(ch == EOF)
 695                 {
 696                         printf("Unexpected end of quoted string!\n");
 697                         exit(1);
 698                 }
 699                 if(ch == '\"') break;
 700
 701                 buf[i] = ch;
 702         }
 703         if(i == bufsize - 1)
 704         {
 705                 printf("Quoted string too long!\n");
 706                 exit(1);
 707         }
 708         buf[i] = 0;
 709         return buf;
 710 }
 711
 712 static long read_long2(io_env_t *env, char **endptr)
 713 {
 714         static char buf[1024];
 715         return strtol(read_str_to(env, buf, sizeof(buf)), endptr, 0);
 716 }
 717
 718 static long read_long(io_env_t *env)
 719 {
 720         return read_long2(env, NULL);
 721 }
 722
 723 static ir_node *get_node_or_null(io_env_t *env, long nodenr)
 724 {
 725         ir_node *node = (ir_node *) get_id(env, nodenr);
 726         if(node && node->kind != k_ir_node)
 727         {
 728                 panic("Irn ID %ld collides with something else in line %i:%i\n", nodenr, env->line, env->col);
 729         }
 730         return node;
 731 }
 732
 733 static ir_node *get_node(io_env_t *env, long nodenr)
 734 {
 735         ir_node *node = get_node_or_null(env, nodenr);
 736         if(!node)
 737                 panic("Unknown node: %ld in line %i:%i\n", nodenr, env->line, env->col);
 738
 739         return node;
 740 }
 741
 742 static ir_node *get_node_or_dummy(io_env_t *env, long nodenr)
 743 {
 744         ir_node *node = get_node_or_null(env, nodenr);
 745         if(!node)
 746         {
 747                 node = new_Dummy(mode_X);
 748                 set_id(env, nodenr, node);
 749         }
 750         return node;
 751 }
 752
 753 static ir_type *get_type(io_env_t *env, long typenr)
 754 {
 755         ir_type *type = (ir_type *) get_id(env, typenr);
 756         if(!type)
 757         {
 758                 panic("Unknown type: %ld in line %i:%i\n", typenr, env->line, env->col);
 759         }
 760         else if(type->kind != k_type)
 761         {
 762                 panic("Type ID %ld collides with something else in line %i:%i\n", typenr, env->line, env->col);
 763         }
 764         return type;
 765 }
 766
 767 static ir_type *read_type(io_env_t *env)
 768 {
 769         return get_type(env, read_long(env));
 770 }
 771
 772 static ir_entity *get_entity(io_env_t *env, long entnr)
 773 {
 774         ir_entity *entity = (ir_entity *) get_id(env, entnr);
 775         if(!entity)
 776         {
 777                 printf("Unknown entity: %ld in line %i:%i\n", entnr, env->line, env->col);
 778                 exit(1);
 779         }
 780         else if(entity->kind != k_entity)
 781         {
 782                 panic("Entity ID %ld collides with something else in line %i:%i\n", entnr, env->line, env->col);
 783         }
 784         return entity;
 785 }
 786
 787 static ir_entity *read_entity(io_env_t *env)
 788 {
 789         return get_entity(env, read_long(env));
 790 }
 791
 792 static ir_mode *read_mode(io_env_t *env)
 793 {
 794         static char buf[128];
 795         int i, n;
 796
 797         read_str_to(env, buf, sizeof(buf));
 798
 799         n = get_irp_n_modes();
 800         for(i = 0; i < n; i++)
 801         {
 802                 ir_mode *mode = get_irp_mode(i);
 803                 if(!strcmp(buf, get_mode_name(mode)))
 804                         return mode;
 805         }
 806
 807         printf("Unknown mode \"%s\" in line %i:%i\n", buf, env->line, env->col);
 808         return mode_ANY;
 809 }
 810
 811 static const char *get_typetag_name(typetag_t typetag)
 812 {
 813         switch(typetag)
 814         {
 815                 case tt_align:       return "align";
 816                 case tt_allocation:  return "allocation";
 817                 case tt_builtin:     return "builtin kind";
 818                 case tt_initializer: return "initializer kind";
 819                 case tt_iro:         return "opcode";
 820                 case tt_peculiarity: return "peculiarity";
 821                 case tt_pin_state:   return "pin state";
 822                 case tt_tpo:         return "type";
 823                 case tt_type_state:  return "type state";
 824                 case tt_variability: return "variability";
 825                 case tt_visibility:  return "visibility";
 826                 case tt_volatility:  return "volatility";
 827                 default: return "<UNKNOWN>";
 828         }
 829 }
 830
 831 /**
 832  * Read and decode an enum constant.
 833  */
 834 static unsigned read_enum(io_env_t *env, typetag_t typetag)
 835 {
 836         static char buf[128];
 837         unsigned code = symbol(read_str_to(env, buf, sizeof(buf)), typetag);
 838         if(code != SYMERROR)
 839                 return code;
 840
 841         printf("Invalid %s: \"%s\" in %i:%i\n", get_typetag_name(typetag), buf, env->line, env->col);
 842         return 0;
 843 }
 844
 845 #define read_align(env)            ((ir_align)              read_enum(env, tt_align))
 846 #define read_allocation(env)       ((ir_allocation)         read_enum(env, tt_allocation))
 847 #define read_peculiarity(env)      ((ir_peculiarity)        read_enum(env, tt_peculiarity))
 848 #define read_pin_state(env)        ((op_pin_state)          read_enum(env, tt_pin_state))
 849 #define read_type_state(env)       ((ir_type_state)         read_enum(env, tt_type_state))
 850 #define read_variability(env)      ((ir_variability)        read_enum(env, tt_variability))
 851 #define read_visibility(env)       ((ir_visibility)         read_enum(env, tt_visibility))
 852 #define read_volatility(env)       ((ir_volatility)         read_enum(env, tt_volatility))
 853 #define read_initializer_kind(env) ((ir_initializer_kind_t) read_enum(env, tt_initializer))
 854 #define read_builtin_kind(env)     ((ir_builtin_kind)       read_enum(env, tt_builtin))
 855
 856 static ir_cons_flags get_cons_flags(io_env_t *env)
 857 {
 858         ir_cons_flags flags = cons_none;
 859
 860         op_pin_state pinstate = read_pin_state(env);
 861         switch(pinstate)
 862         {
 863                 case op_pin_state_floats: flags |= cons_floats; break;
 864                 case op_pin_state_pinned: break;
 865                 default:
 866                         panic("Error in %i:%i: Invalid pinstate: %s", env->line, env->col, get_op_pin_state_name(pinstate));
 867         }
 868
 869         if(read_volatility(env) == volatility_is_volatile) flags |= cons_volatile;
 870         if(read_align(env) == align_non_aligned) flags |= cons_unaligned;
 871
 872         return flags;
 873 }
 874
 875 static tarval *read_tv(io_env_t *env)
 876 {
 877         static char buf[128];
 878         ir_mode *tvmode = read_mode(env);
 879         read_str_to(env, buf, sizeof(buf));
 880         return new_tarval_from_str(buf, strlen(buf), tvmode);
 881 }
 882
 883 static ir_initializer_t *read_initializer(io_env_t *env)
 884 {
 885         FILE *f = env->file;
 886         ir_initializer_kind_t ini_kind = read_initializer_kind(env);
 887
 888         switch(ini_kind)
 889         {
 890                 case IR_INITIALIZER_CONST:
 891                 {
 892                         ir_node *irn = get_node_or_dummy(env, read_long(env));
 893                         return create_initializer_const(irn);
 894                 }
 895
 896                 case IR_INITIALIZER_TARVAL:
 897                         return create_initializer_tarval(read_tv(env));
 898
 899                 case IR_INITIALIZER_NULL:
 900                         return get_initializer_null();
 901
 902                 case IR_INITIALIZER_COMPOUND:
 903                 {
 904                         unsigned i, n = (unsigned) read_long(env);
 905                         ir_initializer_t *ini = create_initializer_compound(n);
 906                         for(i = 0; i < n; i++)
 907                         {
 908                                 ir_initializer_t *curini = read_initializer(env);
 909                                 set_initializer_compound_value(ini, i, curini);
 910                         }
 911                         return ini;
 912                 }
 913
 914                 default:
 915                         panic("Unknown initializer kind");
 916         }
 917 }
 918
 919
 920 /** Reads a type description and remembers it by its id. */
 921 static void import_type(io_env_t *env)
 922 {
 923         char           buf[1024];
 924         int            i;
 925         ir_type       *type;
 926         long           typenr = read_long(env);
 927         const char    *tpop   = read_str(env);
 928         const char    *name   = read_qstr_to(env, buf, sizeof(buf));
 929         unsigned       size   = (unsigned) read_long(env);
 930         unsigned       align  = (unsigned) read_long(env);
 931         ir_type_state  state  = read_type_state(env);
 932         ir_visibility  vis    = read_visibility(env);
 933
 934         ident         *id     = new_id_from_str(name);
 935
 936         switch(symbol(tpop, tt_tpo))
 937         {
 938                 case tpo_array:
 939                 {
 940                         int ndims = (int) read_long(env);
 941                         long elemtypenr = read_long(env);
 942                         ir_type *elemtype = get_type(env, elemtypenr);
 943
 944                         type = new_type_array(id, ndims, elemtype);
 945                         for(i = 0; i < ndims; i++)
 946                         {
 947                                 const char *str = read_str(env);
 948                                 if(strcmp(str, "unknown"))
 949                                 {
 950                                         long lowerbound = strtol(str, NULL, 0);
 951                                         set_array_lower_bound_int(type, i, lowerbound);
 952                                 }
 953                                 str = read_str(env);
 954                                 if(strcmp(str, "unknown"))
 955                                 {
 956                                         long upperbound = strtol(str, NULL, 0);
 957                                         set_array_upper_bound_int(type, i, upperbound);
 958                                 }
 959                         }
 960                         set_type_size_bytes(type, size);
 961                         break;
 962                 }
 963
 964                 case tpo_class:
 965                         type = new_type_class(id);
 966                         set_type_size_bytes(type, size);
 967                         break;
 968
 969                 case tpo_method:
 970                 {
 971                         int nparams  = (int) read_long(env);
 972                         int nresults = (int) read_long(env);
 973
 974                         type = new_type_method(id, nparams, nresults);
 975
 976                         for(i = 0; i < nparams; i++)
 977                         {
 978                                 long     typenr = read_long(env);
 979                                 ir_type *paramtype = get_type(env, typenr);
 980
 981                                 set_method_param_type(type, i, paramtype);
 982                         }
 983                         for(i = 0; i < nresults; i++)
 984                         {
 985                                 long typenr = read_long(env);
 986                                 ir_type *restype = get_type(env, typenr);
 987
 988                                 set_method_res_type(type, i, restype);
 989                         }
 990                         break;
 991                 }
 992
 993                 case tpo_pointer:
 994                 {
 995                         ir_mode *mode = read_mode(env);
 996                         ir_type *pointsto = get_type(env, read_long(env));
 997                         type = new_type_pointer(id, pointsto, mode);
 998                         break;
 999                 }
1000
1001                 case tpo_primitive:
1002                 {
1003                         ir_mode *mode = read_mode(env);
1004                         type = new_type_primitive(id, mode);
1005                         break;
1006                 }
1007
1008                 case tpo_struct:
1009                         type = new_type_struct(id);
1010                         set_type_size_bytes(type, size);
1011                         break;
1012
1013                 case tpo_union:
1014                         type = new_type_union(id);
1015                         set_type_size_bytes(type, size);
1016                         break;
1017
1018                 case tpo_unknown:
1019                         return;   // ignore unknown type
1020
1021                 default:
1022                         if(typenr != 0)  // ignore global type
1023                                 printf("Unknown type kind: \"%s\" in line %i:%i\n", tpop, env->line, env->col);
1024                         skip_to(env, '\n');
1025                         return;
1026         }
1027
1028         set_type_alignment_bytes(type, align);
1029         set_type_visibility(type, vis);
1030
1031         if(state == layout_fixed)
1032                 ARR_APP1(ir_type *, env->fixedtypes, type);
1033
1034         set_id(env, typenr, type);
1035         printf("Insert type %s %ld\n", name, typenr);
1036 }
1037
1038 /** Reads an entity description and remembers it by its id. */
1039 static void import_entity(io_env_t *env)
1040 {
1041         char          buf[1024], buf2[1024];
1042         long          entnr       = read_long(env);
1043         const char   *name        = read_qstr_to(env, buf, sizeof(buf));
1044         const char   *ld_name     = read_qstr_to(env, buf2, sizeof(buf2));
1045         long          typenr      = read_long(env);
1046         long          ownertypenr = read_long(env);
1047
1048         ir_type   *type      = get_type(env, typenr);
1049         ir_type   *ownertype = !ownertypenr ? get_glob_type() : get_type(env, ownertypenr);
1050         ir_entity *entity    = new_entity(ownertype, new_id_from_str(name), type);
1051
1052         if(*ld_name) set_entity_ld_ident(entity, new_id_from_str(ld_name));
1053         set_entity_offset     (entity, (int) read_long(env));
1054         set_entity_offset_bits_remainder(entity, (unsigned char) read_long(env));
1055         set_entity_allocation (entity, read_allocation(env));
1056         set_entity_visibility (entity, read_visibility(env));
1057         set_entity_variability(entity, read_variability(env));
1058         set_entity_peculiarity(entity, read_peculiarity(env));
1059         set_entity_volatility (entity, read_volatility(env));
1060
1061         if(get_entity_variability(entity) != variability_uninitialized
1062                 && get_entity_visibility(entity) != visibility_external_allocated)
1063         {
1064                 if(is_compound_entity(entity))
1065                 {
1066                         if(!strcmp(read_str_to(env, buf2, sizeof(buf2)), "initializer"))
1067                         {
1068                                 set_entity_initializer(entity, read_initializer(env));
1069                         }
1070                         else
1071                         {
1072                                 int i, n = (int) read_long(env);
1073                                 for(i = 0; i < n; i++)
1074                                 {
1075                                         ir_entity *member = get_entity(env, read_long(env));
1076                                         ir_node   *irn    = get_node_or_dummy(env, read_long(env));
1077                                         add_compound_ent_value(entity, irn, member);
1078                                 }
1079                         }
1080                 }
1081                 else
1082                 {
1083                         ir_node *irn = get_node_or_dummy(env, read_long(env));
1084                         set_atomic_ent_value(entity, irn);
1085                 }
1086         }
1087
1088         set_id(env, entnr, entity);
1089         printf("Insert entity %s %ld\n", name, entnr);
1090 }
1091
1092 /** Parses the whole type graph. */
1093 static int parse_typegraph(io_env_t *env)
1094 {
1095         const char *kind;
1096         lex_state_t oldstate;
1097
1098         EXPECT('{');
1099
1100         save_lex_state(env, &oldstate);
1101
1102         current_ir_graph = get_const_code_irg();
1103
1104         // parse all types first
1105         while(1)
1106         {
1107                 kind = read_str(env);
1108                 if(kind[0] == '}' && !kind[1]) break;
1109
1110                 if(!strcmp(kind, "type"))
1111                         import_type(env);
1112                 else
1113                         skip_to(env, '\n');
1114         }
1115
1116         // now parse rest
1117         restore_lex_state(env, &oldstate);
1118
1119         while(1)
1120         {
1121                 kind = read_str(env);
1122                 if(kind[0] == '}' && !kind[1]) break;
1123
1124                 if(!strcmp(kind, "type"))
1125                         skip_to(env, '\n');
1126                 else if(!strcmp(kind, "entity"))
1127                         import_entity(env);
1128                 else
1129                 {
1130                         printf("Type graph element not supported yet: \"%s\"\n", kind);
1131                         skip_to(env, '\n');
1132                 }
1133         }
1134         return 1;
1135 }
1136
1137 static int read_node_header(io_env_t *env, long *nodenr, long **preds, const char **nodename)
1138 {
1139         int numpreds;
1140         *nodename = read_str(env);
1141         if((*nodename)[0] == '}' && !(*nodename)[1]) return -1;  // end-of-graph
1142
1143         *nodenr = read_long(env);
1144
1145         ARR_RESIZE(ir_node *, *preds, 0);
1146
1147         EXPECT('[');
1148         for(numpreds = 0; !feof(env->file); numpreds++)
1149         {
1150                 char *endptr;
1151                 ARR_APP1(long, *preds, read_long2(env, &endptr));
1152                 if(*endptr == ']') break;
1153         }
1154         return numpreds;
1155 }
1156
1157 /** Parses an IRG. */
1158 static int parse_graph(io_env_t *env, ir_graph *irg)
1159 {
1160         long       *preds = NEW_ARR_F(long, 16);
1161         ir_node   **prednodes = NEW_ARR_F(ir_node *, 16);
1162         int         i, numpreds, ret = 1;
1163         long        nodenr;
1164         const char *nodename;
1165         ir_node    *node, *newnode;
1166
1167         current_ir_graph = irg;
1168
1169         EXPECT('{');
1170
1171         while(1)
1172         {
1173                 numpreds = read_node_header(env, &nodenr, &preds, &nodename);
1174                 if(numpreds == -1) break;  // end-of-graph
1175                 if(!numpreds)
1176                 {
1177                         printf("Node %s %ld is missing predecessors!", nodename, nodenr);
1178                         ret = 0;
1179                         break;
1180                 }
1181
1182                 ARR_RESIZE(ir_node *, prednodes, numpreds);
1183                 for(i = 0; i < numpreds - 1; i++)
1184                         prednodes[i] = get_node_or_dummy(env, preds[i + 1]);
1185
1186                 node = get_node_or_null(env, nodenr);
1187                 newnode = NULL;
1188
1189                 EXPECT('{');
1190
1191                 switch(symbol(nodename, tt_iro))
1192                 {
1193                         case iro_End:
1194                         {
1195                                 ir_node *newendblock = get_node(env, preds[0]);
1196                                 newnode = get_irg_end(current_ir_graph);
1197                                 exchange(get_nodes_block(newnode), newendblock);
1198                                 for(i = 0; i < numpreds - 1; i++)
1199                                         add_irn_n(newnode, prednodes[i]);
1200                                 break;
1201                         }
1202
1203                         case iro_Start:
1204                         {
1205                                 ir_node *newstartblock = get_node(env, preds[0]);
1206                                 newnode = get_irg_start(current_ir_graph);
1207                                 exchange(get_nodes_block(newnode), newstartblock);
1208                                 break;
1209                         }
1210
1211                         case iro_Block:
1212                         {
1213                                 if(preds[0] != nodenr)
1214                                 {
1215                                         printf("Invalid block: preds[0] != nodenr (%ld != %ld)\n",
1216                                                 preds[0], nodenr);
1217                                         ret = 0;
1218                                         goto endloop;
1219                                 }
1220
1221                                 newnode = new_Block(numpreds - 1, prednodes);
1222                                 break;
1223                         }
1224
1225                         case iro_Anchor:
1226                                 newnode = current_ir_graph->anchor;
1227                                 for(i = 0; i < numpreds - 1; i++)
1228                                         set_irn_n(newnode, i, prednodes[i]);
1229                                 set_irn_n(newnode, -1, get_node(env, preds[0]));
1230                                 break;
1231
1232                         case iro_SymConst:
1233                         {
1234                                 long entnr = read_long(env);
1235                                 union symconst_symbol sym;
1236                                 sym.entity_p = get_entity(env, entnr);
1237                                 newnode = new_SymConst(mode_P, sym, symconst_addr_ent);
1238                                 break;
1239                         }
1240
1241                         #include "gen_irio_import.inl"
1242
1243                         default:
1244                                 goto notsupported;
1245                 }
1246
1247                 EXPECT('}');
1248
1249                 if(!newnode)
1250                 {
1251 notsupported:
1252                         panic("Node type not supported yet: %s in line %i:%i\n", nodename, env->line, env->col);
1253                 }
1254
1255                 if(node)
1256                         exchange(node, newnode);
1257                 /* Always update hash entry to avoid more uses of id nodes */
1258                 set_id(env, nodenr, newnode);
1259                 //printf("Insert %s %ld\n", nodename, nodenr);
1260         }
1261
1262 endloop:
1263         DEL_ARR_F(preds);
1264         DEL_ARR_F(prednodes);
1265
1266         return ret;
1267 }
1268
1269 /** Imports an previously exported textual representation of an (maybe partial) irp */
1270 void ir_import(const char *filename)
1271 {
1272         int oldoptimize = get_optimize();
1273         firm_verification_t oldver = get_node_verification_mode();
1274         io_env_t ioenv;
1275         io_env_t *env = &ioenv;
1276         int i, n;
1277
1278         symtbl_init();
1279
1280         memset(env, 0, sizeof(*env));
1281         env->idset = new_set(id_cmp, 128);
1282         env->fixedtypes = NEW_ARR_F(ir_type *, 0);
1283
1284         env->file = fopen(filename, "rt");
1285         if(!env->file)
1286         {
1287                 perror(filename);
1288                 exit(1);
1289         }
1290
1291         set_optimize(0);
1292         do_node_verification(FIRM_VERIFICATION_OFF);
1293
1294         while(1)
1295         {
1296                 const char *str = read_str(env);
1297                 if(!*str) break;
1298                 if(!strcmp(str, "typegraph"))
1299                 {
1300                         if(!parse_typegraph(env)) break;
1301                 }
1302                 else if(!strcmp(str, "irg"))
1303                 {
1304                         ir_graph *irg = new_ir_graph(get_entity(env, read_long(env)), 0);
1305                         if(!parse_graph(env, irg)) break;
1306                 }
1307                 else if(!strcmp(str, "constirg"))
1308                 {
1309                         if(!parse_graph(env, get_const_code_irg())) break;
1310                 }
1311         }
1312
1313         n = ARR_LEN(env->fixedtypes);
1314         for(i = 0; i < n; i++)
1315                 set_type_state(env->fixedtypes[i], layout_fixed);
1316
1317         DEL_ARR_F(env->fixedtypes);
1318
1319         del_set(env->idset);
1320
1321         irp_finalize_cons();
1322
1323         do_node_verification(oldver);
1324         set_optimize(oldoptimize);
1325
1326         fclose(env->file);
1327 }