src/vm/jit/show.c

   1 /* src/vm/jit/show.c - showing the intermediate representation
   2
   3    Copyright (C) 1996-2005, 2006 R. Grafl, A. Krall, C. Kruegel,
   4    C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
   5    E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
   6    J. Wenninger, Institut f. Computersprachen - TU Wien
   7
   8    This file is part of CACAO.
   9
  10    This program is free software; you can redistribute it and/or
  11    modify it under the terms of the GNU General Public License as
  12    published by the Free Software Foundation; either version 2, or (at
  13    your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful, but
  16    WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18    General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program; if not, write to the Free Software
  22    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  23    02110-1301, USA.
  24
  25    Contact: cacao@cacaojvm.org
  26
  27    Authors: Andreas Krall
  28             Edwin Steiner
  29             Christian Thalinger
  30             Christian Ullrich
  31
  32    $Id$
  33
  34 */
  35
  36
  37 #include "config.h"
  38 #include "vm/types.h"
  39
  40 #include <assert.h>
  41
  42 #include "mm/memory.h"
  43
  44 #if defined(ENABLE_THREADS)
  45 # include "threads/native/lock.h"
  46 #else
  47 # include "threads/none/lock.h"
  48 #endif
  49
  50 #include "vm/global.h"
  51 #include "vm/options.h"
  52 #include "vm/builtin.h"
  53 #include "vm/stringlocal.h"
  54 #include "vm/jit/jit.h"
  55 #include "vm/jit/show.h"
  56 #include "vm/jit/disass.h"
  57 #include "vm/jit/stack.h"
  58 #include "vm/jit/parse.h"
  59
  60
  61 /* global variables ***********************************************************/
  62
  63 #if defined(ENABLE_THREADS) && !defined(NDEBUG)
  64 static java_objectheader *show_global_lock;
  65 #endif
  66
  67
  68 /* prototypes *****************************************************************/
  69
  70 #if !defined(NDEBUG)
  71 static void show_variable_intern(jitdata *jd, s4 index, int stage);
  72 #endif
  73
  74
  75 /* show_init *******************************************************************
  76
  77    Initialized the show subsystem (called by jit_init).
  78
  79 *******************************************************************************/
  80
  81 #if !defined(NDEBUG)
  82 bool show_init(void)
  83 {
  84 #if defined(ENABLE_THREADS)
  85         /* initialize the show lock */
  86
  87         show_global_lock = NEW(java_objectheader);
  88
  89         lock_init_object_lock(show_global_lock);
  90 #endif
  91
  92         /* everything's ok */
  93
  94         return true;
  95 }
  96 #endif
  97
  98
  99 #if !defined(NDEBUG)
 100 char *show_jit_type_names[] = {
 101         "INT",
 102         "LNG",
 103         "FLT",
 104         "DBL",
 105         "ADR",
 106         "??5",
 107         "??6",
 108         "??7",
 109         "RET"
 110 };
 111 char show_jit_type_letters[] = {
 112         'I',
 113         'L',
 114         'F',
 115         'D',
 116         'A',
 117         '5',
 118         '6',
 119         '7',
 120         'R'
 121 };
 122 #endif
 123
 124
 125 /* show_method *****************************************************************
 126
 127    Print the intermediate representation of a method.
 128
 129    NOTE: Currently this function may only be called after register allocation!
 130
 131 *******************************************************************************/
 132
 133 #if !defined(NDEBUG)
 134 void show_method(jitdata *jd, int stage)
 135 {
 136         methodinfo     *m;
 137         codeinfo       *code;
 138         codegendata    *cd;
 139         registerdata   *rd;
 140         basicblock     *bptr;
 141         basicblock     *lastbptr;
 142         exception_entry *ex;
 143         s4              i, j;
 144         int             irstage;
 145 #if defined(ENABLE_DISASSEMBLER)
 146         u1             *u1ptr;
 147 #endif
 148
 149         /* get required compiler data */
 150
 151         m    = jd->m;
 152         code = jd->code;
 153         cd   = jd->cd;
 154         rd   = jd->rd;
 155
 156         /* We need to enter a lock here, since the binutils disassembler
 157            is not reentrant-able and we could not read functions printed
 158            at the same time. */
 159
 160         LOCK_MONITOR_ENTER(show_global_lock);
 161
 162 #if defined(ENABLE_INTRP)
 163         if (opt_intrp)
 164                 irstage = SHOW_PARSE;
 165         else
 166 #endif
 167                 irstage = stage;
 168
 169         /* get the last basic block */
 170
 171         for (lastbptr = jd->basicblocks; lastbptr->next != NULL; lastbptr = lastbptr->next);
 172
 173         printf("\n");
 174
 175         method_println(m);
 176
 177         if (jd->isleafmethod)
 178                 printf("LEAFMETHOD\n");
 179
 180         printf("\nBasic blocks: %d\n", jd->basicblockcount);
 181         if (stage >= SHOW_CODE) {
 182                 printf("Code length:  %d\n", (lastbptr->mpc - jd->basicblocks[0].mpc));
 183                 printf("Data length:  %d\n", cd->dseglen);
 184                 printf("Stub length:  %d\n", (s4) (code->mcodelength -
 185                                                                                    ((ptrint) cd->dseglen + lastbptr->mpc)));
 186         }
 187         printf("Variables:       %d (%d used)\n", jd->varcount, jd->vartop);
 188         if (stage >= SHOW_STACK)
 189                 printf("Max interfaces:  %d\n", jd->maxinterfaces);
 190         printf("Max locals:      %d\n", jd->maxlocals);
 191         printf("Max stack:       %d\n", m->maxstack);
 192         printf("Linenumbers:     %d\n", m->linenumbercount);
 193         printf("Branch to entry: %s\n", (jd->branchtoentry) ? "yes" : "no");
 194         printf("Branch to end:   %s\n", (jd->branchtoend) ? "yes" : "no");
 195         if (stage >= SHOW_STACK) {
 196                 printf("Number of RETURNs: %d", jd->returncount);
 197                 if (jd->returncount == 1)
 198                         printf(" (block L%03d)", jd->returnblock->nr);
 199                 printf("\n");
 200         }
 201
 202         if (stage >= SHOW_PARSE) {
 203                 printf("Exceptions (Number: %d):\n", jd->exceptiontablelength);
 204                 for (ex = jd->exceptiontable; ex != NULL; ex = ex->down) {
 205                         printf("    L%03d ... ", ex->start->nr );
 206                         printf("L%03d  = ", ex->end->nr);
 207                         printf("L%03d", ex->handler->nr);
 208                         printf("  (catchtype: ");
 209                         if (ex->catchtype.any)
 210                                 if (IS_CLASSREF(ex->catchtype))
 211                                         class_classref_print(ex->catchtype.ref);
 212                                 else
 213                                         class_print(ex->catchtype.cls);
 214                         else
 215                                 printf("ANY");
 216                         printf(")\n");
 217                 }
 218         }
 219
 220         if (irstage >= SHOW_PARSE && rd && jd->localcount > 0) {
 221                 printf("Local Table:\n");
 222                 for (i = 0; i < jd->localcount; i++) {
 223                         printf("   %3d: ", i);
 224
 225 #if defined(ENABLE_JIT) && defined(ENABLE_DISASSEMBLER)
 226 # if defined(ENABLE_INTRP)
 227                         if (!opt_intrp) {
 228 # endif
 229                                 printf("   (%s) ", show_jit_type_names[VAR(i)->type]);
 230                                 if (irstage >= SHOW_REGS)
 231                                         show_allocation(VAR(i)->type, VAR(i)->flags, VAR(i)->vv.regoff);
 232                                 printf("\n");
 233 # if defined(ENABLE_INTRP)
 234                         }
 235 # endif
 236 #endif /* defined(ENABLE_JIT) && defined(ENABLE_DISASSEMBLER) */
 237                 }
 238                 printf("\n");
 239         }
 240
 241         if (jd->maxlocals > 0 && jd->local_map != NULL) {
 242                 printf("Local Map:\n");
 243                 printf("    index ");
 244                 for (j = 0; j < jd->maxlocals; j++) {
 245                         printf(" [%2d]", j);
 246                 }
 247                 printf("\n");
 248                 for (i = 0; i < 5; i++) {
 249                         printf("    %5s ",show_jit_type_names[i]);
 250                         for (j = 0; j < jd->maxlocals; j++) {
 251                                 if (jd->local_map[j*5+i] == UNUSED)
 252                                         printf("  -- ");
 253                                 else
 254                                         printf("%4i ",jd->local_map[j*5+i]);
 255                         }
 256                         printf("\n");
 257                 }
 258                 printf("\n");
 259         }
 260
 261         if (jd->maxinterfaces > 0 && jd->interface_map && irstage >= SHOW_STACK) {
 262                 bool exist = false;
 263                 interface_info *mapptr = jd->interface_map;
 264
 265                 /* look if there exist any INOUTS */
 266                 for (i = 0; (i < (5 * jd->maxinterfaces)) && !exist; i++, mapptr++)
 267                         exist = (mapptr->flags != UNUSED);
 268
 269                 if (exist) {
 270                         printf("Interface Table: (In/Outvars)\n");
 271                         printf("    depth ");
 272                         for (j = 0; j < jd->maxinterfaces; j++) {
 273                                 printf("      [%2d]", j);
 274                         }
 275                         printf("\n");
 276
 277                         for (i = 0; i < 5; i++) {
 278                                 printf("    %5s      ",show_jit_type_names[i]);
 279                                 for (j = 0; j < jd->maxinterfaces; j++) {
 280                                         s4 flags  = jd->interface_map[j*5+i].flags;
 281                                         s4 regoff = jd->interface_map[j*5+i].regoff;
 282                                         if (flags == UNUSED)
 283                                                 printf("  --      ");
 284                                         else {
 285                                                 int ch;
 286
 287                                                 if (irstage >= SHOW_REGS) {
 288                                                         if (flags & SAVEDVAR) {
 289                                                                 if (flags & INMEMORY)
 290                                                                         ch = 'M';
 291                                                                 else
 292                                                                         ch = 'R';
 293                                                         }
 294                                                         else {
 295                                                                 if (flags & INMEMORY)
 296                                                                         ch = 'm';
 297                                                                 else
 298                                                                         ch = 'r';
 299                                                         }
 300                                                         printf("%c%03d(", ch, regoff);
 301                                                         show_allocation(i, flags, regoff);
 302                                                         printf(") ");
 303                                                 }
 304                                                 else {
 305                                                         if (flags & SAVEDVAR)
 306                                                                 printf("  I       ");
 307                                                         else
 308                                                                 printf("  i       ");
 309                                                 }
 310                                         }
 311                                 }
 312                                 printf("\n");
 313                         }
 314                         printf("\n");
 315                 }
 316         }
 317
 318         if (rd->memuse && irstage >= SHOW_REGS) {
 319                 int max;
 320
 321                 max = rd->memuse;
 322                 printf("Stack slots: (memuse=%d", rd->memuse);
 323                 if (irstage >= SHOW_CODE) {
 324                         printf(", stackframesize=%d", cd->stackframesize);
 325                         max = cd->stackframesize;
 326                 }
 327                 printf(")\n");
 328                 for (i = 0; i < max; ++i) {
 329 #if defined(HAS_4BYTE_STACKSLOT)
 330                         printf("    M%02d = 0x%02x(sp): ", i, i * 4);
 331 #else
 332                         printf("    M%02d = 0x%02x(sp): ", i, i * 8);
 333 #endif
 334                         for (j = 0; j < jd->vartop; ++j) {
 335                                 varinfo *v = VAR(j);
 336                                 if ((v->flags & INMEMORY) && (v->vv.regoff == i)) {
 337                                         show_variable(jd, j, irstage);
 338                                         putchar(' ');
 339                                 }
 340                         }
 341
 342                         printf("\n");
 343
 344                 }
 345                 printf("\n");
 346         }
 347
 348         if (code->rplpoints) {
 349                 printf("Replacement Points:\n");
 350                 replace_show_replacement_points(code);
 351                 printf("\n");
 352         }
 353
 354 #if defined(ENABLE_DISASSEMBLER)
 355         /* show code before first basic block */
 356
 357         if ((stage >= SHOW_CODE) && JITDATA_HAS_FLAG_SHOWDISASSEMBLE(jd)) {
 358                 u1ptr = (u1 *) ((ptrint) code->mcode + cd->dseglen);
 359
 360                 for (; u1ptr < (u1 *) ((ptrint) code->mcode + cd->dseglen + jd->basicblocks[0].mpc);)
 361                         DISASSINSTR(u1ptr);
 362
 363                 printf("\n");
 364         }
 365 #endif
 366
 367         /* show code of all basic blocks */
 368
 369         for (bptr = jd->basicblocks; bptr != NULL; bptr = bptr->next)
 370                 show_basicblock(jd, bptr, stage);
 371
 372 #if defined(ENABLE_DISASSEMBLER)
 373         /* show stubs code */
 374
 375         if (stage >= SHOW_CODE && opt_showdisassemble && opt_showexceptionstubs) {
 376                 printf("\nStubs code:\n");
 377                 printf("Length: %d\n\n", (s4) (code->mcodelength -
 378                                                                            ((ptrint) cd->dseglen + lastbptr->mpc)));
 379
 380                 u1ptr = (u1 *) ((ptrint) code->mcode + cd->dseglen + lastbptr->mpc);
 381
 382                 for (; (ptrint) u1ptr < ((ptrint) code->mcode + code->mcodelength);)
 383                         DISASSINSTR(u1ptr);
 384
 385                 printf("\n");
 386         }
 387 #endif
 388
 389         LOCK_MONITOR_EXIT(show_global_lock);
 390
 391         /* finally flush the output */
 392
 393         fflush(stdout);
 394 }
 395 #endif /* !defined(NDEBUG) */
 396
 397
 398 #if !defined(NDEBUG) && defined(ENABLE_INLINING)
 399 static void show_inline_info(jitdata *jd, insinfo_inline *ii, s4 opcode, s4 stage)
 400 {
 401         s4 *jl;
 402         s4 n;
 403
 404         printf("(pt %d+%d+%d st ",
 405                         ii->throughcount - (ii->stackvarscount - ii->paramcount),
 406                         ii->stackvarscount - ii->paramcount,
 407                         ii->paramcount);
 408         show_variable_array(jd, ii->stackvars, ii->stackvarscount, stage);
 409
 410         if (opcode == ICMD_INLINE_START || opcode == ICMD_INLINE_END) {
 411                 printf(" jl ");
 412                 jl = (opcode == ICMD_INLINE_START) ? ii->javalocals_start : ii->javalocals_end;
 413                 n = (opcode == ICMD_INLINE_START) ? ii->method->maxlocals : ii->outer->maxlocals;
 414                 show_javalocals_array(jd, jl, n, stage);
 415         }
 416
 417         printf(") ");
 418
 419 #if 0
 420         printf("(");
 421         method_print(ii->outer);
 422         printf(" ==> ");
 423 #endif
 424
 425         method_print(ii->method);
 426 }
 427 #endif /* !defined(NDEBUG) && defined(ENABLE_INLINING) */
 428
 429
 430 /* show_basicblock *************************************************************
 431
 432    Print the intermediate representation of a basic block.
 433
 434    NOTE: Currently this function may only be called after register allocation!
 435
 436 *******************************************************************************/
 437
 438 #if !defined(NDEBUG)
 439 void show_basicblock(jitdata *jd, basicblock *bptr, int stage)
 440 {
 441         codeinfo    *code;
 442         codegendata *cd;
 443         s4           i;
 444         bool         deadcode;
 445         instruction *iptr;
 446         int          irstage;
 447 #if defined(ENABLE_DISASSEMBLER)
 448         u1          *u1ptr;
 449 #endif
 450
 451         /* get required compiler data */
 452
 453         code = jd->code;
 454         cd   = jd->cd;
 455
 456         if (bptr->flags != BBDELETED) {
 457 #if defined(ENABLE_INTRP)
 458                 if (opt_intrp) {
 459                         deadcode = false;
 460                         irstage = SHOW_PARSE;
 461                 }
 462                 else
 463 #endif
 464                 {
 465                         deadcode = (bptr->flags < BBREACHED);
 466                         irstage = stage;
 467                 }
 468
 469                 printf("======== %sL%03d ======== %s(flags: %d, bitflags: %01x, next: %d, type: ",
 470                                 (bptr->bitflags & BBFLAG_REPLACEMENT) ? "<REPLACE> " : "",
 471                            bptr->nr,
 472                            (deadcode && stage >= SHOW_STACK) ? "DEADCODE! " : "",
 473                            bptr->flags, bptr->bitflags,
 474                            (bptr->next) ? (bptr->next->nr) : -1);
 475
 476                 switch (bptr->type) {
 477                 case BBTYPE_STD:
 478                         printf("STD");
 479                         break;
 480                 case BBTYPE_EXH:
 481                         printf("EXH");
 482                         break;
 483                 case BBTYPE_SBR:
 484                         printf("SBR");
 485                         break;
 486                 }
 487
 488                 printf(", icount: %d", bptr->icount);
 489
 490                 if (irstage >= SHOW_CFG) {
 491                         printf(", preds: %d [ ", bptr->predecessorcount);
 492
 493                         for (i = 0; i < bptr->predecessorcount; i++)
 494                                 printf("%d ", bptr->predecessors[i]->nr);
 495
 496                         printf("]");
 497                 }
 498
 499                 printf("):");
 500
 501                 if (bptr->original)
 502                         printf(" (clone of L%03d)", bptr->original->nr);
 503                 else {
 504                         basicblock *b = bptr->copied_to;
 505                         if (b) {
 506                                 printf(" (copied to ");
 507                                 for (; b; b = b->copied_to)
 508                                         printf("L%03d ", b->nr);
 509                                 printf(")");
 510                         }
 511                 }
 512
 513                 printf("\n");
 514
 515                 if (irstage >= SHOW_STACK) {
 516                         printf("IN:  ");
 517                         show_variable_array(jd, bptr->invars, bptr->indepth, irstage);
 518                         printf(" javalocals: ");
 519                         show_javalocals_array(jd, bptr->javalocals, bptr->method->maxlocals, irstage);
 520                         printf("\n");
 521                 }
 522
 523 #if defined(ENABLE_INLINING)
 524                 if (bptr->inlineinfo) {
 525                         printf("inlineinfo: ");
 526                         show_inline_info(jd, bptr->inlineinfo, -1, irstage);
 527                         printf("\n");
 528                 }
 529 #endif /* defined(ENABLE_INLINING) */
 530
 531                 iptr = bptr->iinstr;
 532
 533                 for (i = 0; i < bptr->icount; i++, iptr++) {
 534                         printf("%4d:%4d:  ", iptr->line, iptr->flags.bits >> INS_FLAG_ID_SHIFT);
 535
 536                         show_icmd(jd, iptr, deadcode, irstage);
 537                         printf("\n");
 538                 }
 539
 540                 if (irstage >= SHOW_STACK) {
 541                         printf("OUT: ");
 542                         show_variable_array(jd, bptr->outvars, bptr->outdepth, irstage);
 543                         printf("\n");
 544                 }
 545
 546 #if defined(ENABLE_DISASSEMBLER)
 547                 if ((stage >= SHOW_CODE) && JITDATA_HAS_FLAG_SHOWDISASSEMBLE(jd) &&
 548                         (!deadcode))
 549                 {
 550                         printf("\n");
 551                         u1ptr = (u1 *) (code->mcode + cd->dseglen + bptr->mpc);
 552
 553                         if (bptr->next != NULL) {
 554                                 for (; u1ptr < (u1 *) (code->mcode + cd->dseglen + bptr->next->mpc);)
 555                                         DISASSINSTR(u1ptr);
 556
 557                         }
 558                         else {
 559                                 for (; u1ptr < (u1 *) (code->mcode + code->mcodelength);)
 560                                         DISASSINSTR(u1ptr);
 561                         }
 562                         printf("\n");
 563                 }
 564 #endif
 565         }
 566 }
 567 #endif /* !defined(NDEBUG) */
 568
 569
 570 /* show_icmd *******************************************************************
 571
 572    Print the intermediate representation of an instruction.
 573
 574    NOTE: Currently this function may only be called after register allocation!
 575
 576 *******************************************************************************/
 577
 578 #if !defined(NDEBUG)
 579
 580 #define SHOW_TARGET(target)                                          \
 581         if (stage >= SHOW_STACK) {                                   \
 582             printf("--> L%03d ", (target).block->nr);                \
 583         }                                                            \
 584         else if (stage >= SHOW_PARSE) {                              \
 585             printf("--> insindex %d (L%03d) ", (target).insindex,    \
 586                 jd->basicblocks[jd->basicblockindex[         \
 587                 (target).insindex]].nr);                             \
 588         }                                                            \
 589         else {                                                       \
 590             printf("--> insindex %d ", (target).insindex);           \
 591         }
 592
 593 #define SHOW_INT_CONST(val)                                          \
 594         if (stage >= SHOW_PARSE) {                                   \
 595             printf("%d (0x%08x) ", (val), (val));                    \
 596         }                                                            \
 597         else {                                                       \
 598             printf("iconst ");                                       \
 599         }
 600
 601 #if SIZEOF_VOID_P == 4
 602 #define SHOW_LNG_CONST(val)                                          \
 603         if (stage >= SHOW_PARSE)                                     \
 604             printf("%lld (0x%016llx) ", (val), (val));               \
 605         else                                                         \
 606             printf("lconst ");
 607 #else
 608 #define SHOW_LNG_CONST(val)                                          \
 609         if (stage >= SHOW_PARSE)                                     \
 610             printf("%ld (0x%016lx) ", (val), (val));                 \
 611         else                                                         \
 612             printf("lconst ");
 613 #endif
 614
 615 #if SIZEOF_VOID_P == 4
 616 #define SHOW_ADR_CONST(val)                                          \
 617         if (stage >= SHOW_PARSE)                                     \
 618             printf("0x%08x ", (ptrint) (val));                       \
 619         else                                                         \
 620             printf("aconst ");
 621 #else
 622 #define SHOW_ADR_CONST(val)                                          \
 623         if (stage >= SHOW_PARSE)                                     \
 624             printf("0x%016lx ", (ptrint) (val));                     \
 625         else                                                         \
 626             printf("aconst ");
 627 #endif
 628
 629 #define SHOW_FLT_CONST(val)                                          \
 630         if (stage >= SHOW_PARSE) {                                   \
 631             imm_union v;                                             \
 632             v.f = (val);                                             \
 633             printf("%g (0x%08x) ", (val), v.i);                      \
 634         }                                                            \
 635         else {                                                       \
 636             printf("fconst ");                                       \
 637         }
 638
 639 #if SIZEOF_VOID_P == 4
 640 #define SHOW_DBL_CONST(val)                                          \
 641         if (stage >= SHOW_PARSE) {                                   \
 642             imm_union v;                                             \
 643             v.d = (val);                                             \
 644             printf("%g (0x%016llx) ", (val), v.l);                   \
 645         }                                                            \
 646         else                                                         \
 647             printf("dconst ");
 648 #else
 649 #define SHOW_DBL_CONST(val)                                          \
 650         if (stage >= SHOW_PARSE) {                                   \
 651             imm_union v;                                             \
 652             v.d = (val);                                             \
 653             printf("%g (0x%016lx) ", (val), v.l);                    \
 654         }                                                            \
 655         else                                                         \
 656             printf("dconst ");
 657 #endif
 658
 659 #define SHOW_INDEX(index)                                            \
 660         if (stage >= SHOW_PARSE) {                                   \
 661             printf("%d ", index);                                    \
 662         }                                                            \
 663         else {                                                       \
 664             printf("index");                                         \
 665         }
 666
 667 #define SHOW_STRING(val)                                             \
 668         if (stage >= SHOW_PARSE) {                                   \
 669             putchar('"');                                            \
 670             utf_display_printable_ascii(                             \
 671                 javastring_toutf((java_lang_String *)(val), false)); \
 672             printf("\" ");                                           \
 673         }                                                            \
 674         else {                                                       \
 675             printf("string ");                                       \
 676         }
 677
 678 #define SHOW_CLASSREF_OR_CLASSINFO(c)                                \
 679         if (stage >= SHOW_PARSE) {                                   \
 680             if (IS_CLASSREF(c))                                      \
 681                 class_classref_print(c.ref);                         \
 682             else                                                     \
 683                 class_print(c.cls);                                  \
 684             putchar(' ');                                            \
 685         }                                                            \
 686         else {                                                       \
 687             printf("class ");                                        \
 688         }
 689
 690 #define SHOW_FIELD(fmiref)                                           \
 691         if (stage >= SHOW_PARSE) {                                   \
 692             field_fieldref_print(fmiref);                            \
 693             putchar(' ');                                            \
 694         }                                                            \
 695         else {                                                       \
 696             printf("field ");                                        \
 697         }
 698
 699 #define SHOW_VARIABLE(v)                                             \
 700     show_variable(jd, (v), stage)
 701
 702 #define SHOW_S1(iptr)                                                \
 703         if (stage >= SHOW_STACK) {                                   \
 704             SHOW_VARIABLE(iptr->s1.varindex);                        \
 705         }
 706
 707 #define SHOW_S2(iptr)                                                \
 708         if (stage >= SHOW_STACK) {                                   \
 709             SHOW_VARIABLE(iptr->sx.s23.s2.varindex);                 \
 710         }
 711
 712 #define SHOW_S3(iptr)                                                \
 713     if (stage >= SHOW_STACK) {                                       \
 714         SHOW_VARIABLE(iptr->sx.s23.s3.varindex);                     \
 715     }
 716
 717 #define SHOW_DST(iptr)                                               \
 718     if (stage >= SHOW_STACK) {                                       \
 719         printf("=> ");                                               \
 720         SHOW_VARIABLE(iptr->dst.varindex);                           \
 721     }
 722
 723 #define SHOW_S1_LOCAL(iptr)                                          \
 724     if (stage >= SHOW_STACK) {                                       \
 725         printf("L%d ", iptr->s1.varindex);                           \
 726     }                                                                \
 727     else {                                                           \
 728         printf("JavaL%d ", iptr->s1.varindex);                       \
 729     }
 730
 731 #define SHOW_DST_LOCAL(iptr)                                         \
 732     if (stage >= SHOW_STACK) {                                       \
 733         printf("=> L%d ", iptr->dst.varindex);                       \
 734     }                                                                \
 735     else {                                                           \
 736         printf("=> JavaL%d ", iptr->dst.varindex);                   \
 737     }
 738
 739 void show_allocation(s4 type, s4 flags, s4 regoff)
 740 {
 741         if (flags & INMEMORY) {
 742                 printf("M%02d", regoff);
 743                 return;
 744         }
 745
 746 #ifdef HAS_ADDRESS_REGISTER_FILE
 747         if (type == TYPE_ADR) {
 748                 printf("R%02d", regoff);
 749                 return;
 750         }
 751 #endif
 752
 753         if (IS_FLT_DBL_TYPE(type)) {
 754                 printf("F%02d", regoff);
 755                 return;
 756         }
 757
 758 #if defined(SUPPORT_COMBINE_INTEGER_REGISTERS)
 759         if (IS_2_WORD_TYPE(type)) {
 760 # if defined(ENABLE_JIT) && defined(ENABLE_DISASSEMBLER)
 761 #  if defined(ENABLE_INTRP)
 762                 if (opt_intrp)
 763                         printf("%3d/%3d", GET_LOW_REG(regoff),
 764                                         GET_HIGH_REG(regoff));
 765                 else
 766 #  endif
 767                         printf("%3s/%3s", regs[GET_LOW_REG(regoff)],
 768                                         regs[GET_HIGH_REG(regoff)]);
 769 # else
 770                 printf("%3d/%3d", GET_LOW_REG(regoff),
 771                                 GET_HIGH_REG(regoff));
 772 # endif
 773                 return;
 774         }
 775 #endif /* defined(SUPPORT_COMBINE_INTEGER_REGISTERS) */
 776
 777 #if defined(ENABLE_JIT) && defined(ENABLE_DISASSEMBLER)
 778 # if defined(ENABLE_INTRP)
 779         if (opt_intrp)
 780                 printf("%3d", regoff);
 781         else
 782 # endif
 783                 printf("%3s", regs[regoff]);
 784 #else
 785         printf("%3d", regoff);
 786 #endif
 787 }
 788
 789 void show_variable(jitdata *jd, s4 index, int stage)
 790 {
 791         show_variable_intern(jd, index, stage);
 792         putchar(' ');
 793 }
 794
 795 static void show_variable_intern(jitdata *jd, s4 index, int stage)
 796 {
 797         char type;
 798         char kind;
 799         varinfo *v;
 800
 801         if (index < 0 || index >= jd->vartop) {
 802                 printf("<INVALID INDEX:%d>", index);
 803                 return;
 804         }
 805
 806         v = VAR(index);
 807
 808         switch (v->type) {
 809                 case TYPE_INT: type = 'i'; break;
 810                 case TYPE_LNG: type = 'l'; break;
 811                 case TYPE_FLT: type = 'f'; break;
 812                 case TYPE_DBL: type = 'd'; break;
 813                 case TYPE_ADR: type = 'a'; break;
 814                 case TYPE_RET: type = 'r'; break;
 815                 default:       type = '?';
 816         }
 817
 818         if (index < jd->localcount) {
 819                 kind = 'L';
 820                 if (v->flags & (PREALLOC | INOUT))
 821                                 printf("<INVALID FLAGS!>");
 822         }
 823         else {
 824                 if (v->flags & PREALLOC) {
 825                         kind = 'A';
 826                         if (v->flags & INOUT)
 827                                 printf("<INVALID FLAGS!>");
 828                 }
 829                 else if (v->flags & INOUT)
 830                         kind = 'I';
 831                 else
 832                         kind = 'T';
 833         }
 834
 835         printf("%c%c%d", kind, type, index);
 836
 837         if (v->flags & SAVEDVAR)
 838                 putchar('!');
 839
 840         if (stage >= SHOW_REGS || (v->flags & PREALLOC)) {
 841                 putchar('(');
 842                 show_allocation(v->type, v->flags, v->vv.regoff);
 843                 putchar(')');
 844         }
 845 }
 846
 847 static void show_variable_array_intern(jitdata *jd, s4 *vars, int n, int stage,
 848                                                                            bool javalocals)
 849 {
 850         int i;
 851         int nr;
 852
 853         if (vars == NULL) {
 854                 printf("<null>");
 855                 return;
 856         }
 857
 858         printf("[");
 859         for (i=0; i<n; ++i) {
 860                 if (i)
 861                         putchar(' ');
 862                 if (vars[i] < 0) {
 863                         if (vars[i] == UNUSED)
 864                                 putchar('-');
 865                         else if (javalocals) {
 866                                 nr = (UNUSED - vars[i]) - 1;
 867                                 printf("ret(L%03d)", nr);
 868                         }
 869                         else {
 870                                 printf("<INVALID INDEX:%d>", vars[i]);
 871                         }
 872                 }
 873                 else
 874                         show_variable_intern(jd, vars[i], stage);
 875         }
 876         printf("]");
 877 }
 878
 879 void show_variable_array(jitdata *jd, s4 *vars, int n, int stage)
 880 {
 881         show_variable_array_intern(jd, vars, n, stage, false);
 882 }
 883
 884 void show_javalocals_array(jitdata *jd, s4 *vars, int n, int stage)
 885 {
 886         show_variable_array_intern(jd, vars, n, stage, true);
 887 }
 888
 889 void show_icmd(jitdata *jd, instruction *iptr, bool deadcode, int stage)
 890 {
 891         u2                 opcode;
 892         branch_target_t   *table;
 893         lookup_target_t   *lookup;
 894         constant_FMIref   *fmiref;
 895         s4                *argp;
 896         s4                 i;
 897
 898         /* get the opcode and the condition */
 899
 900         opcode    =  iptr->opc;
 901
 902         printf("%s ", icmd_table[opcode].name);
 903
 904         if (stage < SHOW_PARSE)
 905                 return;
 906
 907         if (deadcode)
 908                 stage = SHOW_PARSE;
 909
 910         /* Print the condition for conditional instructions. */
 911
 912         /* XXX print condition from flags */
 913
 914         if (iptr->flags.bits & INS_FLAG_UNRESOLVED)
 915                 printf("(UNRESOLVED) ");
 916
 917         switch (opcode) {
 918
 919         case ICMD_POP:
 920         case ICMD_CHECKNULL:
 921                 SHOW_S1(iptr);
 922                 break;
 923
 924                 /* unary */
 925         case ICMD_ARRAYLENGTH:
 926         case ICMD_INEG:
 927         case ICMD_LNEG:
 928         case ICMD_FNEG:
 929         case ICMD_DNEG:
 930         case ICMD_I2L:
 931         case ICMD_I2F:
 932         case ICMD_I2D:
 933         case ICMD_L2I:
 934         case ICMD_L2F:
 935         case ICMD_L2D:
 936         case ICMD_F2I:
 937         case ICMD_F2L:
 938         case ICMD_F2D:
 939         case ICMD_D2I:
 940         case ICMD_D2L:
 941         case ICMD_D2F:
 942         case ICMD_INT2BYTE:
 943         case ICMD_INT2CHAR:
 944         case ICMD_INT2SHORT:
 945                 SHOW_S1(iptr);
 946                 SHOW_DST(iptr);
 947                 break;
 948
 949                 /* binary */
 950         case ICMD_IADD:
 951         case ICMD_LADD:
 952         case ICMD_FADD:
 953         case ICMD_DADD:
 954         case ICMD_ISUB:
 955         case ICMD_LSUB:
 956         case ICMD_FSUB:
 957         case ICMD_DSUB:
 958         case ICMD_IMUL:
 959         case ICMD_LMUL:
 960         case ICMD_FMUL:
 961         case ICMD_DMUL:
 962         case ICMD_IDIV:
 963         case ICMD_LDIV:
 964         case ICMD_FDIV:
 965         case ICMD_DDIV:
 966         case ICMD_IREM:
 967         case ICMD_LREM:
 968         case ICMD_FREM:
 969         case ICMD_DREM:
 970         case ICMD_ISHL:
 971         case ICMD_LSHL:
 972         case ICMD_ISHR:
 973         case ICMD_LSHR:
 974         case ICMD_IUSHR:
 975         case ICMD_LUSHR:
 976         case ICMD_IAND:
 977         case ICMD_LAND:
 978         case ICMD_IOR:
 979         case ICMD_LOR:
 980         case ICMD_IXOR:
 981         case ICMD_LXOR:
 982         case ICMD_LCMP:
 983         case ICMD_FCMPL:
 984         case ICMD_FCMPG:
 985         case ICMD_DCMPL:
 986         case ICMD_DCMPG:
 987                 SHOW_S1(iptr);
 988                 SHOW_S2(iptr);
 989                 SHOW_DST(iptr);
 990                 break;
 991
 992                 /* binary/const INT */
 993         case ICMD_IADDCONST:
 994         case ICMD_ISUBCONST:
 995         case ICMD_IMULCONST:
 996         case ICMD_IMULPOW2:
 997         case ICMD_IDIVPOW2:
 998         case ICMD_IREMPOW2:
 999         case ICMD_IANDCONST:
1000         case ICMD_IORCONST:
1001         case ICMD_IXORCONST:
1002         case ICMD_ISHLCONST:
1003         case ICMD_ISHRCONST:
1004         case ICMD_IUSHRCONST:
1005         case ICMD_LSHLCONST:
1006         case ICMD_LSHRCONST:
1007         case ICMD_LUSHRCONST:
1008                 SHOW_S1(iptr);
1009                 SHOW_INT_CONST(iptr->sx.val.i);
1010                 SHOW_DST(iptr);
1011                 break;
1012
1013                 /* ?ASTORECONST (trinary/const INT) */
1014         case ICMD_IASTORECONST:
1015         case ICMD_BASTORECONST:
1016         case ICMD_CASTORECONST:
1017         case ICMD_SASTORECONST:
1018                 SHOW_S1(iptr);
1019                 SHOW_S2(iptr);
1020                 SHOW_INT_CONST(iptr->sx.s23.s3.constval);
1021                 break;
1022
1023                 /* const INT */
1024         case ICMD_ICONST:
1025                 SHOW_INT_CONST(iptr->sx.val.i);
1026                 SHOW_DST(iptr);
1027                 break;
1028
1029                 /* binary/const LNG */
1030         case ICMD_LADDCONST:
1031         case ICMD_LSUBCONST:
1032         case ICMD_LMULCONST:
1033         case ICMD_LMULPOW2:
1034         case ICMD_LDIVPOW2:
1035         case ICMD_LREMPOW2:
1036         case ICMD_LANDCONST:
1037         case ICMD_LORCONST:
1038         case ICMD_LXORCONST:
1039                 SHOW_S1(iptr);
1040                 SHOW_LNG_CONST(iptr->sx.val.l);
1041                 SHOW_DST(iptr);
1042                 break;
1043
1044                 /* trinary/const LNG (<= pointer size) */
1045         case ICMD_LASTORECONST:
1046                 SHOW_S1(iptr);
1047                 SHOW_S2(iptr);
1048                 SHOW_ADR_CONST(iptr->sx.s23.s3.constval);
1049                 break;
1050
1051                 /* const LNG */
1052         case ICMD_LCONST:
1053                 SHOW_LNG_CONST(iptr->sx.val.l);
1054                 SHOW_DST(iptr);
1055                 break;
1056
1057                 /* const FLT */
1058         case ICMD_FCONST:
1059                 SHOW_FLT_CONST(iptr->sx.val.f);
1060                 SHOW_DST(iptr);
1061                 break;
1062
1063                 /* const DBL */
1064         case ICMD_DCONST:
1065                 SHOW_DBL_CONST(iptr->sx.val.d);
1066                 SHOW_DST(iptr);
1067                 break;
1068
1069                 /* const ADR */
1070         case ICMD_ACONST:
1071                 if (iptr->flags.bits & INS_FLAG_CLASS) {
1072                         SHOW_ADR_CONST(iptr->sx.val.anyptr);
1073                         SHOW_CLASSREF_OR_CLASSINFO(iptr->sx.val.c);
1074                 }
1075                 else if (iptr->sx.val.anyptr == NULL) {
1076                         printf("NULL ");
1077                 }
1078                 else {
1079                         SHOW_ADR_CONST(iptr->sx.val.anyptr);
1080                         SHOW_STRING(iptr->sx.val.stringconst);
1081                 }
1082                 SHOW_DST(iptr);
1083                 break;
1084
1085         case ICMD_AASTORECONST:
1086                 SHOW_S1(iptr);
1087                 SHOW_S2(iptr);
1088                 printf("%p ", (void*) iptr->sx.s23.s3.constval);
1089                 break;
1090
1091         case ICMD_GETFIELD:        /* 1 -> 1 */
1092         case ICMD_PUTFIELD:        /* 2 -> 0 */
1093         case ICMD_PUTSTATIC:       /* 1 -> 0 */
1094         case ICMD_GETSTATIC:       /* 0 -> 1 */
1095         case ICMD_PUTSTATICCONST:  /* 0 -> 0 */
1096         case ICMD_PUTFIELDCONST:   /* 1 -> 0 */
1097                 if (opcode != ICMD_GETSTATIC && opcode != ICMD_PUTSTATICCONST) {
1098                         SHOW_S1(iptr);
1099                         if (opcode == ICMD_PUTFIELD) {
1100                                 SHOW_S2(iptr);
1101                         }
1102                 }
1103                 INSTRUCTION_GET_FIELDREF(iptr, fmiref);
1104                 SHOW_FIELD(fmiref);
1105
1106                 if (opcode == ICMD_GETSTATIC || opcode == ICMD_GETFIELD) {
1107                         SHOW_DST(iptr);
1108                 }
1109                 break;
1110
1111         case ICMD_IINC:
1112                 SHOW_S1_LOCAL(iptr);
1113                 SHOW_INT_CONST(iptr->sx.val.i);
1114                 SHOW_DST_LOCAL(iptr);
1115                 break;
1116
1117         case ICMD_IASTORE:
1118         case ICMD_SASTORE:
1119         case ICMD_BASTORE:
1120         case ICMD_CASTORE:
1121         case ICMD_LASTORE:
1122         case ICMD_DASTORE:
1123         case ICMD_FASTORE:
1124         case ICMD_AASTORE:
1125                 SHOW_S1(iptr);
1126                 SHOW_S2(iptr);
1127                 SHOW_S3(iptr);
1128                 break;
1129
1130         case ICMD_IALOAD:
1131         case ICMD_SALOAD:
1132         case ICMD_BALOAD:
1133         case ICMD_CALOAD:
1134         case ICMD_LALOAD:
1135         case ICMD_DALOAD:
1136         case ICMD_FALOAD:
1137         case ICMD_AALOAD:
1138                 SHOW_S1(iptr);
1139                 SHOW_S2(iptr);
1140                 SHOW_DST(iptr);
1141                 break;
1142
1143         case ICMD_RET:
1144                 SHOW_S1_LOCAL(iptr);
1145                 if (stage >= SHOW_STACK) {
1146                         printf(" ---> L%03d", iptr->dst.block->nr);
1147                 }
1148                 break;
1149
1150         case ICMD_ILOAD:
1151         case ICMD_LLOAD:
1152         case ICMD_FLOAD:
1153         case ICMD_DLOAD:
1154         case ICMD_ALOAD:
1155                 SHOW_S1_LOCAL(iptr);
1156                 SHOW_DST(iptr);
1157                 break;
1158
1159         case ICMD_ISTORE:
1160         case ICMD_LSTORE:
1161         case ICMD_FSTORE:
1162         case ICMD_DSTORE:
1163         case ICMD_ASTORE:
1164                 SHOW_S1(iptr);
1165                 SHOW_DST_LOCAL(iptr);
1166                 if (stage >= SHOW_STACK && iptr->sx.s23.s3.javaindex != UNUSED)
1167                         printf(" (javaindex %d)", iptr->sx.s23.s3.javaindex);
1168                 if (iptr->flags.bits & INS_FLAG_RETADDR) {
1169                         printf(" (retaddr L%03d)", (UNUSED - iptr->sx.s23.s2.retaddrnr) - 1);
1170                 }
1171                 break;
1172
1173         case ICMD_NEW:
1174                 SHOW_DST(iptr);
1175                 break;
1176
1177         case ICMD_NEWARRAY:
1178                 SHOW_DST(iptr);
1179                 break;
1180
1181         case ICMD_ANEWARRAY:
1182                 SHOW_DST(iptr);
1183                 break;
1184
1185         case ICMD_MULTIANEWARRAY:
1186                 if (stage >= SHOW_STACK) {
1187                         argp = iptr->sx.s23.s2.args;
1188                         i = iptr->s1.argcount;
1189                         while (i--) {
1190                                 SHOW_VARIABLE(*(argp++));
1191                         }
1192                 }
1193                 else {
1194                         printf("argcount=%d ", iptr->s1.argcount);
1195                 }
1196                 SHOW_DST(iptr);
1197                 break;
1198
1199         case ICMD_CHECKCAST:
1200                 SHOW_S1(iptr);
1201                 putchar(' ');
1202                 class_classref_or_classinfo_print(iptr->sx.s23.s3.c);
1203                 SHOW_DST(iptr);
1204                 break;
1205
1206         case ICMD_INSTANCEOF:
1207                 SHOW_S1(iptr);
1208                 SHOW_DST(iptr);
1209                 break;
1210
1211         case ICMD_INLINE_START:
1212         case ICMD_INLINE_END:
1213 #if defined(ENABLE_INLINING)
1214                 {
1215                         insinfo_inline *ii = iptr->sx.s23.s3.inlineinfo;
1216                         show_inline_info(jd, ii, opcode, stage);
1217                 }
1218 #endif
1219                 break;
1220
1221         case ICMD_BUILTIN:
1222                 if (stage >= SHOW_STACK) {
1223                         argp = iptr->sx.s23.s2.args;
1224                         i = iptr->s1.argcount;
1225                         while (i--) {
1226                                 if ((iptr->s1.argcount - 1 - i) == iptr->sx.s23.s3.bte->md->paramcount)
1227                                         printf(" pass-through: ");
1228                                 SHOW_VARIABLE(*(argp++));
1229                         }
1230                 }
1231                 printf("%s ", iptr->sx.s23.s3.bte->cname);
1232                 if (iptr->sx.s23.s3.bte->md->returntype.type != TYPE_VOID) {
1233                         SHOW_DST(iptr);
1234                 }
1235                 break;
1236
1237         case ICMD_INVOKEVIRTUAL:
1238         case ICMD_INVOKESPECIAL:
1239         case ICMD_INVOKESTATIC:
1240         case ICMD_INVOKEINTERFACE:
1241                 if (stage >= SHOW_STACK) {
1242                         methoddesc *md;
1243                         INSTRUCTION_GET_METHODDESC(iptr, md);
1244                         argp = iptr->sx.s23.s2.args;
1245                         i = iptr->s1.argcount;
1246                         while (i--) {
1247                                 if ((iptr->s1.argcount - 1 - i) == md->paramcount)
1248                                         printf(" pass-through: ");
1249                                 SHOW_VARIABLE(*(argp++));
1250                         }
1251                 }
1252                 INSTRUCTION_GET_METHODREF(iptr, fmiref);
1253                 method_methodref_print(fmiref);
1254                 if (fmiref->parseddesc.md->returntype.type != TYPE_VOID) {
1255                         putchar(' ');
1256                         SHOW_DST(iptr);
1257                 }
1258                 break;
1259
1260         case ICMD_IFEQ:
1261         case ICMD_IFNE:
1262         case ICMD_IFLT:
1263         case ICMD_IFGE:
1264         case ICMD_IFGT:
1265         case ICMD_IFLE:
1266                 SHOW_S1(iptr);
1267                 SHOW_INT_CONST(iptr->sx.val.i);
1268                 SHOW_TARGET(iptr->dst);
1269                 break;
1270
1271         case ICMD_IF_LEQ:
1272         case ICMD_IF_LNE:
1273         case ICMD_IF_LLT:
1274         case ICMD_IF_LGE:
1275         case ICMD_IF_LGT:
1276         case ICMD_IF_LLE:
1277                 SHOW_S1(iptr);
1278                 SHOW_LNG_CONST(iptr->sx.val.l);
1279                 SHOW_TARGET(iptr->dst);
1280                 break;
1281
1282         case ICMD_GOTO:
1283         case ICMD_INLINE_GOTO:
1284                 SHOW_TARGET(iptr->dst);
1285                 break;
1286
1287         case ICMD_JSR:
1288                 SHOW_TARGET(iptr->sx.s23.s3.jsrtarget);
1289                 SHOW_DST(iptr);
1290                 break;
1291
1292         case ICMD_IFNULL:
1293         case ICMD_IFNONNULL:
1294                 SHOW_S1(iptr);
1295                 SHOW_TARGET(iptr->dst);
1296                 break;
1297
1298         case ICMD_IF_ICMPEQ:
1299         case ICMD_IF_ICMPNE:
1300         case ICMD_IF_ICMPLT:
1301         case ICMD_IF_ICMPGE:
1302         case ICMD_IF_ICMPGT:
1303         case ICMD_IF_ICMPLE:
1304
1305         case ICMD_IF_LCMPEQ:
1306         case ICMD_IF_LCMPNE:
1307         case ICMD_IF_LCMPLT:
1308         case ICMD_IF_LCMPGE:
1309         case ICMD_IF_LCMPGT:
1310         case ICMD_IF_LCMPLE:
1311
1312         case ICMD_IF_FCMPEQ:
1313         case ICMD_IF_FCMPNE:
1314
1315         case ICMD_IF_FCMPL_LT:
1316         case ICMD_IF_FCMPL_GE:
1317         case ICMD_IF_FCMPL_GT:
1318         case ICMD_IF_FCMPL_LE:
1319
1320         case ICMD_IF_FCMPG_LT:
1321         case ICMD_IF_FCMPG_GE:
1322         case ICMD_IF_FCMPG_GT:
1323         case ICMD_IF_FCMPG_LE:
1324
1325         case ICMD_IF_DCMPEQ:
1326         case ICMD_IF_DCMPNE:
1327
1328         case ICMD_IF_DCMPL_LT:
1329         case ICMD_IF_DCMPL_GE:
1330         case ICMD_IF_DCMPL_GT:
1331         case ICMD_IF_DCMPL_LE:
1332
1333         case ICMD_IF_DCMPG_LT:
1334         case ICMD_IF_DCMPG_GE:
1335         case ICMD_IF_DCMPG_GT:
1336         case ICMD_IF_DCMPG_LE:
1337
1338         case ICMD_IF_ACMPEQ:
1339         case ICMD_IF_ACMPNE:
1340                 SHOW_S1(iptr);
1341                 SHOW_S2(iptr);
1342                 SHOW_TARGET(iptr->dst);
1343                 break;
1344
1345         case ICMD_TABLESWITCH:
1346                 SHOW_S1(iptr);
1347                 table = iptr->dst.table;
1348
1349                 i = iptr->sx.s23.s3.tablehigh - iptr->sx.s23.s2.tablelow + 1;
1350
1351                 printf("high=%d low=%d count=%d\n", iptr->sx.s23.s3.tablehigh, iptr->sx.s23.s2.tablelow, i);
1352                 while (--i >= 0) {
1353                         printf("\t\t%d --> ", (int) (table - iptr->dst.table));
1354                         if (stage >= SHOW_STACK) {
1355                                 printf("L%03d\n", table->block->nr);
1356                         }
1357                         else {
1358                                 printf("insindex %d (L%03d)\n", table->insindex, BLOCK_OF(table->insindex)->nr);
1359                         }
1360                         table++;
1361                 }
1362
1363                 break;
1364
1365         case ICMD_LOOKUPSWITCH:
1366                 SHOW_S1(iptr);
1367
1368                 printf("count=%d, default=", iptr->sx.s23.s2.lookupcount);
1369                 if (stage >= SHOW_STACK) {
1370                         printf("L%03d\n", iptr->sx.s23.s3.lookupdefault.block->nr);
1371                 }
1372                 else {
1373                         printf("insindex %d (L%03d)\n", iptr->sx.s23.s3.lookupdefault.insindex, BLOCK_OF(iptr->sx.s23.s3.lookupdefault.insindex)->nr);
1374                 }
1375
1376                 lookup = iptr->dst.lookup;
1377                 i = iptr->sx.s23.s2.lookupcount;
1378                 while (--i >= 0) {
1379                         printf("\t\t%d --> ", lookup->value);
1380                         if (stage >= SHOW_STACK) {
1381                                 printf("L%03d\n", lookup->target.block->nr);
1382                         }
1383                         else {
1384                                 printf("insindex %d (L%03d)\n", lookup->target.insindex, BLOCK_OF(lookup->target.insindex)->nr);
1385                         }
1386                         lookup++;
1387                 }
1388                 break;
1389
1390         case ICMD_FRETURN:
1391         case ICMD_IRETURN:
1392         case ICMD_DRETURN:
1393         case ICMD_LRETURN:
1394                 SHOW_S1(iptr);
1395                 break;
1396
1397         case ICMD_ARETURN:
1398         case ICMD_ATHROW:
1399                 SHOW_S1(iptr);
1400                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1401                         /* XXX this needs more work */
1402 #if 0
1403                         unresolved_class_debug_dump(iptr->sx.s23.s2.uc, stdout);
1404 #endif
1405                 }
1406                 break;
1407
1408         case ICMD_COPY:
1409         case ICMD_MOVE:
1410                 SHOW_S1(iptr);
1411                 SHOW_DST(iptr);
1412                 break;
1413         }
1414         fflush(stdout);
1415 }
1416 #endif /* !defined(NDEBUG) */
1417
1418
1419 /*
1420  * These are local overrides for various environment variables in Emacs.
1421  * Please do not remove this and leave it at the end of the file, where
1422  * Emacs will automagically detect them.
1423  * ---------------------------------------------------------------------
1424  * Local variables:
1425  * mode: c
1426  * indent-tabs-mode: t
1427  * c-basic-offset: 4
1428  * tab-width: 4
1429  * End:
1430  * vim:noexpandtab:sw=4:ts=4:
1431  */