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