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         int res;
 108         const symbol_t *entry = (const symbol_t *) elt;
 109         const symbol_t *keyentry = (const symbol_t *) key;
 110         (void) size;
 111         res = entry->typetag - keyentry->typetag;
 112         if(res) return res;
 113         return strcmp(entry->str, keyentry->str);
 114 }
 115
 116 static int id_cmp(const void *elt, const void *key, size_t size)
 117 {
 118         const id_entry *entry = (const id_entry *) elt;
 119         const id_entry *keyentry = (const id_entry *) key;
 120         (void) size;
 121         return entry->id - keyentry->id;
 122 }
 123
 124 /** Initializes the symbol table. May be called more than once without problems. */
 125 static void symtbl_init(void)
 126 {
 127         symbol_t key;
 128
 129         /* Only initialize once */
 130         if(symtbl != NULL)
 131                 return;
 132
 133         symtbl = new_set(symbol_cmp, 256);
 134
 135 #define INSERT(s, tt, cod)                                       \
 136         key.str = (s);                                               \
 137         key.typetag = (tt);                                          \
 138         key.code = (cod);                                            \
 139         set_insert(symtbl, &key, sizeof(key), string_hash(s, sizeof(s)-1) + tt * 17)
 140
 141 #define INSERTENUM(tt, e) INSERT(#e, tt, e)
 142
 143         INSERT("array", tt_tpo, tpo_array);
 144         INSERT("class", tt_tpo, tpo_class);
 145         INSERT("method", tt_tpo, tpo_method);
 146         INSERT("pointer", tt_tpo, tpo_pointer);
 147         INSERT("primitive", tt_tpo, tpo_primitive);
 148         INSERT("struct", tt_tpo, tpo_struct);
 149         INSERT("Unknown", tt_tpo, tpo_unknown);
 150
 151 #include "gen_irio_lex.inl"
 152
 153         INSERTENUM(tt_align, align_non_aligned);
 154         INSERTENUM(tt_align, align_is_aligned);
 155
 156         INSERTENUM(tt_allocation, allocation_automatic);
 157         INSERTENUM(tt_allocation, allocation_parameter);
 158         INSERTENUM(tt_allocation, allocation_dynamic);
 159         INSERTENUM(tt_allocation, allocation_static);
 160
 161         INSERTENUM(tt_pin_state, op_pin_state_floats);
 162         INSERTENUM(tt_pin_state, op_pin_state_pinned);
 163         INSERTENUM(tt_pin_state, op_pin_state_exc_pinned);
 164         INSERTENUM(tt_pin_state, op_pin_state_mem_pinned);
 165
 166         INSERTENUM(tt_type_state, layout_undefined);
 167         INSERTENUM(tt_type_state, layout_fixed);
 168
 169         INSERTENUM(tt_variability, variability_uninitialized);
 170         INSERTENUM(tt_variability, variability_initialized);
 171         INSERTENUM(tt_variability, variability_part_constant);
 172         INSERTENUM(tt_variability, variability_constant);
 173
 174         INSERTENUM(tt_visibility, visibility_local);
 175         INSERTENUM(tt_visibility, visibility_external_visible);
 176         INSERTENUM(tt_visibility, visibility_external_allocated);
 177
 178         INSERTENUM(tt_volatility, volatility_non_volatile);
 179         INSERTENUM(tt_volatility, volatility_is_volatile);
 180
 181         INSERTENUM(tt_peculiarity, peculiarity_description);
 182         INSERTENUM(tt_peculiarity, peculiarity_inherited);
 183         INSERTENUM(tt_peculiarity, peculiarity_existent);
 184
 185         INSERTENUM(tt_initializer, IR_INITIALIZER_CONST);
 186         INSERTENUM(tt_initializer, IR_INITIALIZER_TARVAL);
 187         INSERTENUM(tt_initializer, IR_INITIALIZER_NULL);
 188         INSERTENUM(tt_initializer, IR_INITIALIZER_COMPOUND);
 189
 190         INSERTENUM(tt_builtin, ir_bk_trap);
 191         INSERTENUM(tt_builtin, ir_bk_debugbreak);
 192         INSERTENUM(tt_builtin, ir_bk_return_address);
 193         INSERTENUM(tt_builtin, ir_bk_frame_addess);
 194         INSERTENUM(tt_builtin, ir_bk_prefetch);
 195         INSERTENUM(tt_builtin, ir_bk_ffs);
 196         INSERTENUM(tt_builtin, ir_bk_clz);
 197         INSERTENUM(tt_builtin, ir_bk_ctz);
 198         INSERTENUM(tt_builtin, ir_bk_popcount);
 199         INSERTENUM(tt_builtin, ir_bk_parity);
 200         INSERTENUM(tt_builtin, ir_bk_bswap);
 201         INSERTENUM(tt_builtin, ir_bk_inport);
 202         INSERTENUM(tt_builtin, ir_bk_outport);
 203         INSERTENUM(tt_builtin, ir_bk_inner_trampoline);
 204
 205 #undef INSERTENUM
 206 #undef INSERT
 207 }
 208
 209 /** Returns the according symbol value for the given string and tag, or SYMERROR if none was found. */
 210 static unsigned symbol(const char *str, typetag_t typetag)
 211 {
 212         symbol_t key, *entry;
 213
 214         key.str = str;
 215         key.typetag = typetag;
 216
 217         entry = set_find(symtbl, &key, sizeof(key), string_hash(str, strlen(str)) + typetag * 17);
 218         return entry ? entry->code : SYMERROR;
 219 }
 220
 221 static void *get_id(io_env_t *env, long id)
 222 {
 223         id_entry key, *entry;
 224         key.id = id;
 225
 226         entry = set_find(env->idset, &key, sizeof(key), (unsigned) id);
 227         return entry ? entry->elem : NULL;
 228 }
 229
 230 static void set_id(io_env_t *env, long id, void *elem)
 231 {
 232         id_entry key;
 233         key.id = id;
 234         key.elem = elem;
 235         set_insert(env->idset, &key, sizeof(key), (unsigned) id);
 236 }
 237
 238 static void write_mode(io_env_t *env, ir_mode *mode)
 239 {
 240         fputs(get_mode_name(mode), env->file);
 241         fputc(' ', env->file);
 242 }
 243
 244 static void write_tarval(io_env_t *env, tarval *tv)
 245 {
 246         char buf[1024];
 247         write_mode(env, get_tarval_mode(tv));
 248         tarval_snprintf(buf, sizeof(buf), tv);
 249         fputs(buf, env->file);
 250         fputc(' ', env->file);
 251 }
 252
 253 static void write_pin_state(io_env_t *env, ir_node *irn)
 254 {
 255         fputs(get_op_pin_state_name(get_irn_pinned(irn)), env->file);
 256         fputc(' ', env->file);
 257 }
 258
 259 static void write_volatility(io_env_t *env, ir_node *irn)
 260 {
 261         ir_volatility vol;
 262
 263         if(is_Load(irn)) vol = get_Load_volatility(irn);
 264         else if(is_Store(irn)) vol = get_Store_volatility(irn);
 265         else assert(0 && "Invalid optype for write_volatility");
 266
 267         fputs(get_volatility_name(vol), env->file);
 268         fputc(' ', env->file);
 269 }
 270
 271 static void write_align(io_env_t *env, ir_node *irn)
 272 {
 273         ir_align align;
 274
 275         if(is_Load(irn)) align = get_Load_align(irn);
 276         else if(is_Store(irn)) align = get_Store_align(irn);
 277         else assert(0 && "Invalid optype for write_align");
 278
 279         fputs(get_align_name(align), env->file);
 280         fputc(' ', env->file);
 281 }
 282
 283 static void write_builtin_kind(io_env_t *env, ir_node *irn)
 284 {
 285         fputs(get_builtin_kind_name(get_Builtin_kind(irn)), env->file);
 286         fputc(' ', env->file);
 287 }
 288
 289 static void write_initializer(io_env_t *env, ir_initializer_t *ini)
 290 {
 291         FILE *f = env->file;
 292         ir_initializer_kind_t ini_kind = get_initializer_kind(ini);
 293
 294         fputs(get_initializer_kind_name(ini_kind), f);
 295         fputc(' ', f);
 296
 297         switch(ini_kind)
 298         {
 299                 case IR_INITIALIZER_CONST:
 300                         fprintf(f, "%ld ", get_irn_node_nr(get_initializer_const_value(ini)));
 301                         break;
 302
 303                 case IR_INITIALIZER_TARVAL:
 304                         write_tarval(env, get_initializer_tarval_value(ini));
 305                         break;
 306
 307                 case IR_INITIALIZER_NULL:
 308                         break;
 309
 310                 case IR_INITIALIZER_COMPOUND:
 311                 {
 312                         unsigned i, n = get_initializer_compound_n_entries(ini);
 313                         fprintf(f, "%d ", n);
 314                         for(i = 0; i < n; i++)
 315                                 write_initializer(env, get_initializer_compound_value(ini, i));
 316                         break;
 317                 }
 318
 319                 default:
 320                         panic("Unknown initializer kind");
 321         }
 322 }
 323
 324 static void export_type(io_env_t *env, ir_type *tp)
 325 {
 326         FILE *f = env->file;
 327         int i;
 328         fprintf(f, "\ttype %ld %s \"%s\" %u %u %s %s ",
 329                         get_type_nr(tp),
 330                         get_type_tpop_name(tp),
 331                         get_type_name(tp),
 332                         get_type_size_bytes(tp),
 333                         get_type_alignment_bytes(tp),
 334                         get_type_state_name(get_type_state(tp)),
 335                         get_visibility_name(get_type_visibility(tp)));
 336
 337         switch(get_type_tpop_code(tp))
 338         {
 339                 case tpo_array:
 340                 {
 341                         int n = get_array_n_dimensions(tp);
 342                         fprintf(f, "%i %ld ", n, get_type_nr(get_array_element_type(tp)));
 343                         for(i = 0; i < n; i++)
 344                         {
 345                                 ir_node *lower = get_array_lower_bound(tp, i);
 346                                 ir_node *upper = get_array_upper_bound(tp, i);
 347
 348                                 if(is_Const(lower)) fprintf(f, "%ld ", get_tarval_long(get_Const_tarval(lower)));
 349                                 else panic("Lower array bound is not constant");
 350
 351                                 if(is_Const(upper)) fprintf(f, "%ld ", get_tarval_long(get_Const_tarval(upper)));
 352                                 else if(is_Unknown(upper)) fputs("unknown ", f);
 353                                 else panic("Upper array bound is not constant");
 354                         }
 355                         break;
 356                 }
 357
 358                 case tpo_class:
 359                         /* TODO: inheritance stuff not supported yet */
 360                         printf("Inheritance of classes not supported yet!\n");
 361                         break;
 362
 363                 case tpo_method:
 364                 {
 365                         int nparams = get_method_n_params(tp);
 366                         int nresults = get_method_n_ress(tp);
 367                         fprintf(f, "%i %i ", nparams, nresults);
 368                         for(i = 0; i < nparams; i++)
 369                                 fprintf(f, "%ld ", get_type_nr(get_method_param_type(tp, i)));
 370                         for(i = 0; i < nresults; i++)
 371                                 fprintf(f, "%ld ", get_type_nr(get_method_res_type(tp, i)));
 372                         break;
 373                 }
 374
 375                 case tpo_pointer:
 376                         write_mode(env, get_type_mode(tp));
 377                         fprintf(f, "%ld ", get_type_nr(get_pointer_points_to_type(tp)));
 378                         break;
 379
 380                 case tpo_primitive:
 381                         write_mode(env, get_type_mode(tp));
 382                         break;
 383
 384                 case tpo_struct:
 385                         break;
 386
 387                 case tpo_unknown:
 388                         break;
 389
 390                 default:
 391                         printf("export_type: Unknown type code \"%s\".\n", get_type_tpop_name(tp));
 392                         break;
 393         }
 394         fputc('\n', f);
 395 }
 396
 397 static void export_entity(io_env_t *env, ir_entity *ent)
 398 {
 399         ir_type *owner = get_entity_owner(ent);
 400         fprintf(env->file, "\tentity %ld \"%s\" \"%s\" %ld %ld %d %u %s %s %s %s %s ",
 401                         get_entity_nr(ent),
 402                         get_entity_name(ent),
 403                         ent->ld_name ? get_id_str(ent->ld_name) : "",
 404                         get_type_nr(get_entity_type(ent)),
 405                         get_type_nr(owner),
 406                         get_entity_offset(ent),
 407                         (unsigned) get_entity_offset_bits_remainder(ent),
 408                         get_allocation_name(get_entity_allocation(ent)),
 409                         get_visibility_name(get_entity_visibility(ent)),
 410                         get_variability_name(get_entity_variability(ent)),
 411                         get_peculiarity_name(get_entity_peculiarity(ent)),
 412                         get_volatility_name(get_entity_volatility(ent)));
 413
 414         // TODO: inheritance stuff for class entities not supported yet
 415         if(is_Class_type(owner) && owner != get_glob_type())
 416                 printf("Inheritance of class entities not supported yet!\n");
 417
 418         if(get_entity_variability(ent) != variability_uninitialized
 419                 && get_entity_visibility(ent) != visibility_external_allocated)
 420         {
 421                 if(is_compound_entity(ent))
 422                 {
 423                         if(has_entity_initializer(ent))
 424                         {
 425                                 fputs("initializer ", env->file);
 426                                 write_initializer(env, get_entity_initializer(ent));
 427                         }
 428                         else
 429                         {
 430                                 int i, n = get_compound_ent_n_values(ent);
 431                                 fputs("noninitializer ", env->file);
 432                                 fprintf(env->file, "%d ", n);
 433                                 for(i = 0; i < n; i++)
 434                                 {
 435                                         ir_entity *member = get_compound_ent_value_member(ent, i);
 436                                         ir_node   *irn    = get_compound_ent_value(ent, i);
 437                                         fprintf(env->file, "%ld %ld ", get_entity_nr(member), get_irn_node_nr(irn));
 438                                 }
 439                         }
 440                 }
 441                 else
 442                 {
 443                         ir_node *irn = get_atomic_ent_value(ent);
 444                         fprintf(env->file, "%ld ", get_irn_node_nr(irn));
 445                 }
 446         }
 447
 448         fputc('\n', env->file);
 449 }
 450
 451 static void export_type_or_ent(type_or_ent tore, void *ctx)
 452 {
 453         io_env_t *env = (io_env_t *) ctx;
 454
 455         switch(get_kind(tore.ent))
 456         {
 457                 case k_entity:
 458                         export_entity(env, tore.ent);
 459                         break;
 460
 461                 case k_type:
 462                         export_type(env, tore.typ);
 463                         break;
 464
 465                 default:
 466                         printf("export_type_or_ent: Unknown type or entity.\n");
 467                         break;
 468         }
 469 }
 470
 471 static void export_node(ir_node *irn, void *ctx)
 472 {
 473         io_env_t *env = (io_env_t *) ctx;
 474         int i, n;
 475         unsigned opcode = get_irn_opcode(irn);
 476
 477         if(env->ignoreblocks && opcode == iro_Block)
 478                 return;
 479
 480         n = get_irn_arity(irn);
 481
 482         fprintf(env->file, "\t%s %ld [ ", get_irn_opname(irn), get_irn_node_nr(irn));
 483
 484         for(i = -1; i < n; i++)
 485         {
 486                 ir_node *pred = get_irn_n(irn, i);
 487                 if(pred == NULL) {
 488                         /* Anchor node may have NULL predecessors */
 489                         assert(is_Anchor(irn));
 490                         fputs("-1 ", env->file);
 491                 } else {
 492                         fprintf(env->file, "%ld ", get_irn_node_nr(pred));
 493                 }
 494         }
 495
 496         fprintf(env->file, "] { ");
 497
 498         switch(opcode)
 499         {
 500                 #include "gen_irio_export.inl"
 501         }
 502         fputs("}\n", env->file);
 503 }
 504
 505 /** Exports the whole irp to the given file in a textual form. */
 506 void ir_export(const char *filename)
 507 {
 508         io_env_t env;
 509         int i, n_irgs = get_irp_n_irgs(), n_pseudoirgs = get_irp_n_pseudo_irgs();
 510
 511         env.file = fopen(filename, "wt");
 512         if(!env.file)
 513         {
 514                 perror(filename);
 515                 return;
 516         }
 517
 518         fputs("typegraph {\n", env.file);
 519
 520         type_walk_plus_frames(NULL, export_type_or_ent, &env);
 521         /* TODO: Visit frame types and "types for value params"? */
 522
 523         for(i = 0; i < n_irgs; i++)
 524         {
 525                 ir_graph *irg = get_irp_irg(i);
 526
 527                 fprintf(env.file, "}\n\nirg %ld {\n", get_entity_nr(get_irg_entity(irg)));
 528
 529                 env.ignoreblocks = 0;
 530                 irg_block_walk_graph(irg, NULL, export_node, &env);
 531
 532                 env.ignoreblocks = 1;
 533                 irg_walk_anchors(irg, NULL, export_node, &env);
 534         }
 535
 536         fputs("}\n\nconstirg {\n", env.file);
 537         walk_const_code(NULL, export_node, &env);
 538         fputs("}\n", env.file);
 539
 540         fclose(env.file);
 541 }
 542
 543 /** Exports the given irg to the given file. */
 544 void ir_export_irg(ir_graph *irg, const char *filename)
 545 {
 546         io_env_t env;
 547
 548         env.file = fopen(filename, "wt");
 549         if(!env.file)
 550         {
 551                 perror(filename);
 552                 return;
 553         }
 554
 555         fputs("typegraph {\n", env.file);
 556
 557         type_walk_irg(irg, NULL, export_type_or_ent, &env);
 558
 559         fprintf(env.file, "}\n\nirg %ld {\n", get_entity_nr(get_irg_entity(irg)));
 560
 561         env.ignoreblocks = 0;
 562         irg_block_walk_graph(irg, NULL, export_node, &env);
 563
 564         env.ignoreblocks = 1;
 565         irg_walk_anchors(irg, NULL, export_node, &env);
 566
 567         /* TODO: Only output needed constants */
 568         fputs("}\n\nconstirg {\n", env.file);
 569         walk_const_code(NULL, export_node, &env);
 570         fputs("}\n", env.file);
 571
 572         fclose(env.file);
 573 }
 574
 575 static void save_lex_state(io_env_t *env, lex_state_t *state)
 576 {
 577         state->offs = ftell(env->file);
 578         state->line = env->line;
 579         state->col  = env->col;
 580 }
 581
 582 static void restore_lex_state(io_env_t *env, lex_state_t *state)
 583 {
 584         fseek(env->file, state->offs, SEEK_SET);
 585         env->line = state->line;
 586         env->col  = state->col;
 587 }
 588
 589 static int read_c(io_env_t *env)
 590 {
 591         int ch = fgetc(env->file);
 592         switch(ch)
 593         {
 594                 case '\t':
 595                         env->col += 4;
 596                         break;
 597
 598                 case '\n':
 599                         env->col = 0;
 600                         env->line++;
 601                         break;
 602
 603                 default:
 604                         env->col++;
 605                         break;
 606         }
 607         return ch;
 608 }
 609
 610 /** Returns the first non-whitespace character or EOF. **/
 611 static int skip_ws(io_env_t *env)
 612 {
 613         while(1)
 614         {
 615                 int ch = read_c(env);
 616                 switch(ch)
 617                 {
 618                         case ' ':
 619                         case '\t':
 620                         case '\n':
 621                         case '\r':
 622                                 break;
 623
 624                         default:
 625                                 return ch;
 626                 }
 627         }
 628 }
 629
 630 static void skip_to(io_env_t *env, char to_ch)
 631 {
 632         int ch;
 633         do
 634         {
 635                 ch = read_c(env);
 636         }
 637         while(ch != to_ch && ch != EOF);
 638 }
 639
 640 static int expect_char(io_env_t *env, char ch)
 641 {
 642         int curch = skip_ws(env);
 643         if(curch != ch)
 644         {
 645                 printf("Unexpected char '%c', expected '%c' in line %i:%i\n", curch, ch, env->line, env->col);
 646                 return 0;
 647         }
 648         return 1;
 649 }
 650
 651 #define EXPECT(c) if(expect_char(env, (c))) {} else return 0
 652 #define EXPECT_OR_EXIT(c) if(expect_char(env, (c))) {} else exit(1)
 653
 654 inline static const char *read_str_to(io_env_t *env, char *buf, size_t bufsize)
 655 {
 656         size_t i;
 657         for(i = 0; i < bufsize - 1; i++)
 658         {
 659                 int ch = read_c(env);
 660                 if(ch == EOF) break;
 661                 switch(ch)
 662                 {
 663                         case ' ':
 664                         case '\t':
 665                         case '\n':
 666                         case '\r':
 667                                 if(i != 0)
 668                                         goto endofword;
 669                                 i--;    // skip whitespace
 670                                 break;
 671
 672                         default:
 673                                 buf[i] = ch;
 674                                 break;
 675                 }
 676         }
 677 endofword:
 678         buf[i] = 0;
 679         return buf;
 680 }
 681
 682 static const char *read_str(io_env_t *env)
 683 {
 684         static char buf[1024];
 685         return read_str_to(env, buf, sizeof(buf));
 686 }
 687
 688 static const char *read_qstr_to(io_env_t *env, char *buf, size_t bufsize)
 689 {
 690         size_t i;
 691         EXPECT_OR_EXIT('\"');
 692         for(i = 0; i < bufsize - 1; i++)
 693         {
 694                 int ch = read_c(env);
 695                 if(ch == EOF)
 696                 {
 697                         printf("Unexpected end of quoted string!\n");
 698                         exit(1);
 699                 }
 700                 if(ch == '\"') break;
 701
 702                 buf[i] = ch;
 703         }
 704         if(i == bufsize - 1)
 705         {
 706                 printf("Quoted string too long!\n");
 707                 exit(1);
 708         }
 709         buf[i] = 0;
 710         return buf;
 711 }
 712
 713 static long read_long2(io_env_t *env, char **endptr)
 714 {
 715         static char buf[1024];
 716         return strtol(read_str_to(env, buf, sizeof(buf)), endptr, 0);
 717 }
 718
 719 static long read_long(io_env_t *env)
 720 {
 721         return read_long2(env, NULL);
 722 }
 723
 724 static ir_node *get_node_or_null(io_env_t *env, long nodenr)
 725 {
 726         ir_node *node = (ir_node *) get_id(env, nodenr);
 727         if(node && node->kind != k_ir_node)
 728         {
 729                 panic("Irn ID %ld collides with something else in line %i:%i\n", nodenr, env->line, env->col);
 730         }
 731         return node;
 732 }
 733
 734 static ir_node *get_node(io_env_t *env, long nodenr)
 735 {
 736         ir_node *node = get_node_or_null(env, nodenr);
 737         if(!node)
 738                 panic("Unknown node: %ld in line %i:%i\n", nodenr, env->line, env->col);
 739
 740         return node;
 741 }
 742
 743 static ir_node *get_node_or_dummy(io_env_t *env, long nodenr)
 744 {
 745         ir_node *node = get_node_or_null(env, nodenr);
 746         if(!node)
 747         {
 748                 node = new_Dummy(mode_X);
 749                 set_id(env, nodenr, node);
 750         }
 751         return node;
 752 }
 753
 754 static ir_type *get_type(io_env_t *env, long typenr)
 755 {
 756         ir_type *type = (ir_type *) get_id(env, typenr);
 757         if(!type)
 758         {
 759                 panic("Unknown type: %ld in line %i:%i\n", typenr, env->line, env->col);
 760         }
 761         else if(type->kind != k_type)
 762         {
 763                 panic("Type ID %ld collides with something else in line %i:%i\n", typenr, env->line, env->col);
 764         }
 765         return type;
 766 }
 767
 768 static ir_type *read_type(io_env_t *env)
 769 {
 770         return get_type(env, read_long(env));
 771 }
 772
 773 static ir_entity *get_entity(io_env_t *env, long entnr)
 774 {
 775         ir_entity *entity = (ir_entity *) get_id(env, entnr);
 776         if(!entity)
 777         {
 778                 printf("Unknown entity: %ld in line %i:%i\n", entnr, env->line, env->col);
 779                 exit(1);
 780         }
 781         else if(entity->kind != k_entity)
 782         {
 783                 panic("Entity ID %ld collides with something else in line %i:%i\n", entnr, env->line, env->col);
 784         }
 785         return entity;
 786 }
 787
 788 static ir_entity *read_entity(io_env_t *env)
 789 {
 790         return get_entity(env, read_long(env));
 791 }
 792
 793 static ir_mode *read_mode(io_env_t *env)
 794 {
 795         static char buf[128];
 796         int i, n;
 797
 798         read_str_to(env, buf, sizeof(buf));
 799
 800         n = get_irp_n_modes();
 801         for(i = 0; i < n; i++)
 802         {
 803                 ir_mode *mode = get_irp_mode(i);
 804                 if(!strcmp(buf, get_mode_name(mode)))
 805                         return mode;
 806         }
 807
 808         printf("Unknown mode \"%s\" in line %i:%i\n", buf, env->line, env->col);
 809         return mode_ANY;
 810 }
 811
 812 static const char *get_typetag_name(typetag_t typetag)
 813 {
 814         switch(typetag)
 815         {
 816                 case tt_align:       return "align";
 817                 case tt_allocation:  return "allocation";
 818                 case tt_builtin:     return "builtin kind";
 819                 case tt_initializer: return "initializer kind";
 820                 case tt_iro:         return "opcode";
 821                 case tt_peculiarity: return "peculiarity";
 822                 case tt_pin_state:   return "pin state";
 823                 case tt_tpo:         return "type";
 824                 case tt_type_state:  return "type state";
 825                 case tt_variability: return "variability";
 826                 case tt_visibility:  return "visibility";
 827                 case tt_volatility:  return "volatility";
 828                 default: return "<UNKNOWN>";
 829         }
 830 }
 831
 832 /**
 833  * Read and decode an enum constant.
 834  */
 835 static unsigned read_enum(io_env_t *env, typetag_t typetag)
 836 {
 837         static char buf[128];
 838         unsigned code = symbol(read_str_to(env, buf, sizeof(buf)), typetag);
 839         if(code != SYMERROR)
 840                 return code;
 841
 842         printf("Invalid %s: \"%s\" in %i:%i\n", get_typetag_name(typetag), buf, env->line, env->col);
 843         return 0;
 844 }
 845
 846 #define read_align(env)            ((ir_align)              read_enum(env, tt_align))
 847 #define read_allocation(env)       ((ir_allocation)         read_enum(env, tt_allocation))
 848 #define read_peculiarity(env)      ((ir_peculiarity)        read_enum(env, tt_peculiarity))
 849 #define read_pin_state(env)        ((op_pin_state)          read_enum(env, tt_pin_state))
 850 #define read_type_state(env)       ((ir_type_state)         read_enum(env, tt_type_state))
 851 #define read_variability(env)      ((ir_variability)        read_enum(env, tt_variability))
 852 #define read_visibility(env)       ((ir_visibility)         read_enum(env, tt_visibility))
 853 #define read_volatility(env)       ((ir_volatility)         read_enum(env, tt_volatility))
 854 #define read_initializer_kind(env) ((ir_initializer_kind_t) read_enum(env, tt_initializer))
 855 #define read_builtin_kind(env)     ((ir_builtin_kind)       read_enum(env, tt_builtin))
 856
 857 static ir_cons_flags get_cons_flags(io_env_t *env)
 858 {
 859         ir_cons_flags flags = cons_none;
 860
 861         op_pin_state pinstate = read_pin_state(env);
 862         switch(pinstate)
 863         {
 864                 case op_pin_state_floats: flags |= cons_floats; break;
 865                 case op_pin_state_pinned: break;
 866                 default:
 867                         panic("Error in %i:%i: Invalid pinstate: %s", env->line, env->col, get_op_pin_state_name(pinstate));
 868         }
 869
 870         if(read_volatility(env) == volatility_is_volatile) flags |= cons_volatile;
 871         if(read_align(env) == align_non_aligned) flags |= cons_unaligned;
 872
 873         return flags;
 874 }
 875
 876 static tarval *read_tv(io_env_t *env)
 877 {
 878         static char buf[128];
 879         ir_mode *tvmode = read_mode(env);
 880         read_str_to(env, buf, sizeof(buf));
 881         return new_tarval_from_str(buf, strlen(buf), tvmode);
 882 }
 883
 884 static ir_initializer_t *read_initializer(io_env_t *env)
 885 {
 886         FILE *f = env->file;
 887         ir_initializer_kind_t ini_kind = read_initializer_kind(env);
 888
 889         switch(ini_kind)
 890         {
 891                 case IR_INITIALIZER_CONST:
 892                 {
 893                         ir_node *irn = get_node_or_dummy(env, read_long(env));
 894                         return create_initializer_const(irn);
 895                 }
 896
 897                 case IR_INITIALIZER_TARVAL:
 898                         return create_initializer_tarval(read_tv(env));
 899
 900                 case IR_INITIALIZER_NULL:
 901                         return get_initializer_null();
 902
 903                 case IR_INITIALIZER_COMPOUND:
 904                 {
 905                         unsigned i, n = (unsigned) read_long(env);
 906                         ir_initializer_t *ini = create_initializer_compound(n);
 907                         for(i = 0; i < n; i++)
 908                         {
 909                                 ir_initializer_t *curini = read_initializer(env);
 910                                 set_initializer_compound_value(ini, i, curini);
 911                         }
 912                         return ini;
 913                 }
 914
 915                 default:
 916                         panic("Unknown initializer kind");
 917         }
 918 }
 919
 920
 921 /** Reads a type description and remembers it by its id. */
 922 static void import_type(io_env_t *env)
 923 {
 924         char           buf[1024];
 925         int            i;
 926         ir_type       *type;
 927         long           typenr = read_long(env);
 928         const char    *tpop   = read_str(env);
 929         const char    *name   = read_qstr_to(env, buf, sizeof(buf));
 930         unsigned       size   = (unsigned) read_long(env);
 931         unsigned       align  = (unsigned) read_long(env);
 932         ir_type_state  state  = read_type_state(env);
 933         ir_visibility  vis    = read_visibility(env);
 934
 935         ident         *id     = new_id_from_str(name);
 936
 937         switch(symbol(tpop, tt_tpo))
 938         {
 939                 case tpo_array:
 940                 {
 941                         int ndims = (int) read_long(env);
 942                         long elemtypenr = read_long(env);
 943                         ir_type *elemtype = get_type(env, elemtypenr);
 944
 945                         type = new_type_array(id, ndims, elemtype);
 946                         for(i = 0; i < ndims; i++)
 947                         {
 948                                 const char *str = read_str(env);
 949                                 if(strcmp(str, "unknown"))
 950                                 {
 951                                         long lowerbound = strtol(str, NULL, 0);
 952                                         set_array_lower_bound_int(type, i, lowerbound);
 953                                 }
 954                                 str = read_str(env);
 955                                 if(strcmp(str, "unknown"))
 956                                 {
 957                                         long upperbound = strtol(str, NULL, 0);
 958                                         set_array_upper_bound_int(type, i, upperbound);
 959                                 }
 960                         }
 961                         set_type_size_bytes(type, size);
 962                         break;
 963                 }
 964
 965                 case tpo_class:
 966                         type = new_type_class(id);
 967                         set_type_size_bytes(type, size);
 968                         break;
 969
 970                 case tpo_method:
 971                 {
 972                         int nparams  = (int) read_long(env);
 973                         int nresults = (int) read_long(env);
 974
 975                         type = new_type_method(id, nparams, nresults);
 976
 977                         for(i = 0; i < nparams; i++)
 978                         {
 979                                 long     typenr = read_long(env);
 980                                 ir_type *paramtype = get_type(env, typenr);
 981
 982                                 set_method_param_type(type, i, paramtype);
 983                         }
 984                         for(i = 0; i < nresults; i++)
 985                         {
 986                                 long typenr = read_long(env);
 987                                 ir_type *restype = get_type(env, typenr);
 988
 989                                 set_method_res_type(type, i, restype);
 990                         }
 991                         break;
 992                 }
 993
 994                 case tpo_pointer:
 995                 {
 996                         ir_mode *mode = read_mode(env);
 997                         ir_type *pointsto = get_type(env, read_long(env));
 998                         type = new_type_pointer(id, pointsto, mode);
 999                         break;
1000                 }
1001
1002                 case tpo_primitive:
1003                 {
1004                         ir_mode *mode = read_mode(env);
1005                         type = new_type_primitive(id, mode);
1006                         break;
1007                 }
1008
1009                 case tpo_struct:
1010                         type = new_type_struct(id);
1011                         set_type_size_bytes(type, size);
1012                         break;
1013
1014                 case tpo_union:
1015                         type = new_type_union(id);
1016                         set_type_size_bytes(type, size);
1017                         break;
1018
1019                 case tpo_unknown:
1020                         return;   // ignore unknown type
1021
1022                 default:
1023                         if(typenr != 0)  // ignore global type
1024                                 printf("Unknown type kind: \"%s\" in line %i:%i\n", tpop, env->line, env->col);
1025                         skip_to(env, '\n');
1026                         return;
1027         }
1028
1029         set_type_alignment_bytes(type, align);
1030         set_type_visibility(type, vis);
1031
1032         if(state == layout_fixed)
1033                 ARR_APP1(ir_type *, env->fixedtypes, type);
1034
1035         set_id(env, typenr, type);
1036         printf("Insert type %s %ld\n", name, typenr);
1037 }
1038
1039 /** Reads an entity description and remembers it by its id. */
1040 static void import_entity(io_env_t *env)
1041 {
1042         char          buf[1024], buf2[1024];
1043         long          entnr       = read_long(env);
1044         const char   *name        = read_qstr_to(env, buf, sizeof(buf));
1045         const char   *ld_name     = read_qstr_to(env, buf2, sizeof(buf2));
1046         long          typenr      = read_long(env);
1047         long          ownertypenr = read_long(env);
1048
1049         ir_type   *type      = get_type(env, typenr);
1050         ir_type   *ownertype = !ownertypenr ? get_glob_type() : get_type(env, ownertypenr);
1051         ir_entity *entity    = new_entity(ownertype, new_id_from_str(name), type);
1052
1053         if(*ld_name) set_entity_ld_ident(entity, new_id_from_str(ld_name));
1054         set_entity_offset     (entity, (int) read_long(env));
1055         set_entity_offset_bits_remainder(entity, (unsigned char) read_long(env));
1056         set_entity_allocation (entity, read_allocation(env));
1057         set_entity_visibility (entity, read_visibility(env));
1058         set_entity_variability(entity, read_variability(env));
1059         set_entity_peculiarity(entity, read_peculiarity(env));
1060         set_entity_volatility (entity, read_volatility(env));
1061
1062         if(get_entity_variability(entity) != variability_uninitialized
1063                 && get_entity_visibility(entity) != visibility_external_allocated)
1064         {
1065                 if(is_compound_entity(entity))
1066                 {
1067                         if(!strcmp(read_str_to(env, buf2, sizeof(buf2)), "initializer"))
1068                         {
1069                                 set_entity_initializer(entity, read_initializer(env));
1070                         }
1071                         else
1072                         {
1073                                 int i, n = (int) read_long(env);
1074                                 for(i = 0; i < n; i++)
1075                                 {
1076                                         ir_entity *member = get_entity(env, read_long(env));
1077                                         ir_node   *irn    = get_node_or_dummy(env, read_long(env));
1078                                         add_compound_ent_value(entity, irn, member);
1079                                 }
1080                         }
1081                 }
1082                 else
1083                 {
1084                         ir_node *irn = get_node_or_dummy(env, read_long(env));
1085                         set_atomic_ent_value(entity, irn);
1086                 }
1087         }
1088
1089         set_id(env, entnr, entity);
1090         printf("Insert entity %s %ld\n", name, entnr);
1091 }
1092
1093 /** Parses the whole type graph. */
1094 static int parse_typegraph(io_env_t *env)
1095 {
1096         const char *kind;
1097         lex_state_t oldstate;
1098
1099         EXPECT('{');
1100
1101         save_lex_state(env, &oldstate);
1102
1103         current_ir_graph = get_const_code_irg();
1104
1105         // parse all types first
1106         while(1)
1107         {
1108                 kind = read_str(env);
1109                 if(kind[0] == '}' && !kind[1]) break;
1110
1111                 if(!strcmp(kind, "type"))
1112                         import_type(env);
1113                 else
1114                         skip_to(env, '\n');
1115         }
1116
1117         // now parse rest
1118         restore_lex_state(env, &oldstate);
1119
1120         while(1)
1121         {
1122                 kind = read_str(env);
1123                 if(kind[0] == '}' && !kind[1]) break;
1124
1125                 if(!strcmp(kind, "type"))
1126                         skip_to(env, '\n');
1127                 else if(!strcmp(kind, "entity"))
1128                         import_entity(env);
1129                 else
1130                 {
1131                         printf("Type graph element not supported yet: \"%s\"\n", kind);
1132                         skip_to(env, '\n');
1133                 }
1134         }
1135         return 1;
1136 }
1137
1138 static int read_node_header(io_env_t *env, long *nodenr, long **preds, const char **nodename)
1139 {
1140         int numpreds;
1141         *nodename = read_str(env);
1142         if((*nodename)[0] == '}' && !(*nodename)[1]) return -1;  // end-of-graph
1143
1144         *nodenr = read_long(env);
1145
1146         ARR_RESIZE(ir_node *, *preds, 0);
1147
1148         EXPECT('[');
1149         for(numpreds = 0; !feof(env->file); numpreds++)
1150         {
1151                 char *endptr;
1152                 ARR_APP1(long, *preds, read_long2(env, &endptr));
1153                 if(*endptr == ']') break;
1154         }
1155         return numpreds;
1156 }
1157
1158 /** Parses an IRG. */
1159 static int parse_graph(io_env_t *env, ir_graph *irg)
1160 {
1161         long       *preds = NEW_ARR_F(long, 16);
1162         ir_node   **prednodes = NEW_ARR_F(ir_node *, 16);
1163         int         i, numpreds, ret = 1;
1164         long        nodenr;
1165         const char *nodename;
1166         ir_node    *node, *newnode;
1167
1168         current_ir_graph = irg;
1169
1170         EXPECT('{');
1171
1172         while(1)
1173         {
1174                 numpreds = read_node_header(env, &nodenr, &preds, &nodename);
1175                 if(numpreds == -1) break;  // end-of-graph
1176                 if(!numpreds)
1177                 {
1178                         printf("Node %s %ld is missing predecessors!", nodename, nodenr);
1179                         ret = 0;
1180                         break;
1181                 }
1182
1183                 ARR_RESIZE(ir_node *, prednodes, numpreds);
1184                 for(i = 0; i < numpreds - 1; i++)
1185                         prednodes[i] = get_node_or_dummy(env, preds[i + 1]);
1186
1187                 node = get_node_or_null(env, nodenr);
1188                 newnode = NULL;
1189
1190                 EXPECT('{');
1191
1192                 switch(symbol(nodename, tt_iro))
1193                 {
1194                         case iro_End:
1195                         {
1196                                 ir_node *newendblock = get_node(env, preds[0]);
1197                                 newnode = get_irg_end(current_ir_graph);
1198                                 exchange(get_nodes_block(newnode), newendblock);
1199                                 for(i = 0; i < numpreds - 1; i++)
1200                                         add_irn_n(newnode, prednodes[i]);
1201                                 break;
1202                         }
1203
1204                         case iro_Start:
1205                         {
1206                                 ir_node *newstartblock = get_node(env, preds[0]);
1207                                 newnode = get_irg_start(current_ir_graph);
1208                                 exchange(get_nodes_block(newnode), newstartblock);
1209                                 break;
1210                         }
1211
1212                         case iro_Block:
1213                         {
1214                                 if(preds[0] != nodenr)
1215                                 {
1216                                         printf("Invalid block: preds[0] != nodenr (%ld != %ld)\n",
1217                                                 preds[0], nodenr);
1218                                         ret = 0;
1219                                         goto endloop;
1220                                 }
1221
1222                                 newnode = new_Block(numpreds - 1, prednodes);
1223                                 break;
1224                         }
1225
1226                         case iro_Anchor:
1227                                 newnode = current_ir_graph->anchor;
1228                                 for(i = 0; i < numpreds - 1; i++)
1229                                         set_irn_n(newnode, i, prednodes[i]);
1230                                 set_irn_n(newnode, -1, get_node(env, preds[0]));
1231                                 break;
1232
1233                         case iro_SymConst:
1234                         {
1235                                 long entnr = read_long(env);
1236                                 union symconst_symbol sym;
1237                                 sym.entity_p = get_entity(env, entnr);
1238                                 newnode = new_SymConst(mode_P, sym, symconst_addr_ent);
1239                                 break;
1240                         }
1241
1242                         #include "gen_irio_import.inl"
1243
1244                         default:
1245                                 goto notsupported;
1246                 }
1247
1248                 EXPECT('}');
1249
1250                 if(!newnode)
1251                 {
1252 notsupported:
1253                         panic("Node type not supported yet: %s in line %i:%i\n", nodename, env->line, env->col);
1254                 }
1255
1256                 if(node)
1257                         exchange(node, newnode);
1258                 /* Always update hash entry to avoid more uses of id nodes */
1259                 set_id(env, nodenr, newnode);
1260                 //printf("Insert %s %ld\n", nodename, nodenr);
1261         }
1262
1263 endloop:
1264         DEL_ARR_F(preds);
1265         DEL_ARR_F(prednodes);
1266
1267         return ret;
1268 }
1269
1270 /** Imports an previously exported textual representation of an (maybe partial) irp */
1271 void ir_import(const char *filename)
1272 {
1273         int oldoptimize = get_optimize();
1274         firm_verification_t oldver = get_node_verification_mode();
1275         io_env_t ioenv;
1276         io_env_t *env = &ioenv;
1277         int i, n;
1278
1279         symtbl_init();
1280
1281         memset(env, 0, sizeof(*env));
1282         env->idset = new_set(id_cmp, 128);
1283         env->fixedtypes = NEW_ARR_F(ir_type *, 0);
1284
1285         env->file = fopen(filename, "rt");
1286         if(!env->file)
1287         {
1288                 perror(filename);
1289                 exit(1);
1290         }
1291
1292         set_optimize(0);
1293         do_node_verification(FIRM_VERIFICATION_OFF);
1294
1295         while(1)
1296         {
1297                 const char *str = read_str(env);
1298                 if(!*str) break;
1299                 if(!strcmp(str, "typegraph"))
1300                 {
1301                         if(!parse_typegraph(env)) break;
1302                 }
1303                 else if(!strcmp(str, "irg"))
1304                 {
1305                         ir_graph *irg = new_ir_graph(get_entity(env, read_long(env)), 0);
1306                         if(!parse_graph(env, irg)) break;
1307                 }
1308                 else if(!strcmp(str, "constirg"))
1309                 {
1310                         if(!parse_graph(env, get_const_code_irg())) break;
1311                 }
1312         }
1313
1314         n = ARR_LEN(env->fixedtypes);
1315         for(i = 0; i < n; i++)
1316                 set_type_state(env->fixedtypes[i], layout_fixed);
1317
1318         DEL_ARR_F(env->fixedtypes);
1319
1320         del_set(env->idset);
1321
1322         irp_finalize_cons();
1323
1324         do_node_verification(oldver);
1325         set_optimize(oldoptimize);
1326
1327         fclose(env->file);
1328 }