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
  29    Changes: Edwin Steiner
  30             Christian Thalinger
  31             Christian Ullrich
  32
  33    $Id$
  34
  35 */
  36
  37
  38 #include "config.h"
  39 #include "vm/types.h"
  40
  41 #include <assert.h>
  42
  43 #include "mm/memory.h"
  44
  45 #if defined(ENABLE_THREADS)
  46 # include "threads/native/lock.h"
  47 #else
  48 # include "threads/none/lock.h"
  49 #endif
  50
  51 #include "vm/global.h"
  52 #include "vm/options.h"
  53 #include "vm/builtin.h"
  54 #include "vm/stringlocal.h"
  55 #include "vm/jit/jit.h"
  56 #include "vm/jit/show.h"
  57 #include "vm/jit/disass.h"
  58 #include "vm/jit/stack.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 /* forward declarations *******************************************************/
  69
  70 #if !defined(NDEBUG)
  71 static void new_show_variable_array(jitdata *jd, stackptr *vars, int n, 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 static char *jit_type[] = {
 101         "int",
 102         "lng",
 103         "flt",
 104         "dbl",
 105         "adr"
 106 };
 107 #endif
 108
 109
 110 /* show_method *****************************************************************
 111
 112    Print the intermediate representation of a method.
 113
 114    NOTE: Currently this function may only be called after register allocation!
 115
 116 *******************************************************************************/
 117
 118 #if !defined(NDEBUG)
 119 void new_show_method(jitdata *jd, int stage)
 120 {
 121         methodinfo     *m;
 122         codeinfo       *code;
 123         codegendata    *cd;
 124         registerdata   *rd;
 125         basicblock     *bptr;
 126         basicblock     *lastbptr;
 127         exceptiontable *ex;
 128         s4              i, j;
 129         u1             *u1ptr;
 130
 131         /* get required compiler data */
 132
 133         m    = jd->m;
 134         code = jd->code;
 135         cd   = jd->cd;
 136         rd   = jd->rd;
 137
 138         /* We need to enter a lock here, since the binutils disassembler
 139            is not reentrant-able and we could not read functions printed
 140            at the same time. */
 141
 142         LOCK_MONITOR_ENTER(show_global_lock);
 143
 144         /* get the last basic block */
 145
 146         for (lastbptr = jd->new_basicblocks; lastbptr->next != NULL; lastbptr = lastbptr->next);
 147
 148         printf("\n");
 149
 150         method_println(m);
 151
 152         printf("\n(NEW INSTRUCTION FORMAT)\n");
 153         printf("\nBasic blocks: %d\n", jd->new_basicblockcount);
 154         if (stage >= SHOW_CODE) {
 155                 printf("Code length:  %d\n", (lastbptr->mpc - jd->new_basicblocks[0].mpc));
 156                 printf("Data length:  %d\n", cd->dseglen);
 157                 printf("Stub length:  %d\n", (s4) (code->mcodelength -
 158                                                                                    ((ptrint) cd->dseglen + lastbptr->mpc)));
 159         }
 160         printf("Max locals:   %d\n", cd->maxlocals);
 161         printf("Max stack:    %d\n", cd->maxstack);
 162         printf("Line number table length: %d\n", m->linenumbercount);
 163
 164         if (stage >= SHOW_PARSE) {
 165                 printf("Exceptions (Number: %d):\n", cd->exceptiontablelength);
 166                 for (ex = cd->exceptiontable; ex != NULL; ex = ex->down) {
 167                         printf("    L%03d ... ", ex->start->nr );
 168                         printf("L%03d  = ", ex->end->nr);
 169                         printf("L%03d", ex->handler->nr);
 170                         printf("  (catchtype: ");
 171                         if (ex->catchtype.any)
 172                                 if (IS_CLASSREF(ex->catchtype))
 173                                         utf_display_printable_ascii_classname(ex->catchtype.ref->name);
 174                                 else
 175                                         utf_display_printable_ascii_classname(ex->catchtype.cls->name);
 176                         else
 177                                 printf("ANY");
 178                         printf(")\n");
 179                 }
 180         }
 181
 182         if (stage >= SHOW_PARSE && rd) {
 183         printf("Local Table:\n");
 184         for (i = 0; i < cd->maxlocals; i++) {
 185                 printf("   %3d: ", i);
 186
 187 #if defined(ENABLE_JIT) && defined(ENABLE_DISASSEMBLER)
 188                 for (j = TYPE_INT; j <= TYPE_ADR; j++) {
 189 # if defined(ENABLE_INTRP)
 190                         if (!opt_intrp) {
 191 # endif
 192                                 if (rd->locals[i][j].type >= 0) {
 193                                         printf("   (%s) ", jit_type[j]);
 194                                         if (stage >= SHOW_REGS) {
 195                                                 if (rd->locals[i][j].flags & INMEMORY)
 196                                                         printf("m%2d", rd->locals[i][j].regoff);
 197 # ifdef HAS_ADDRESS_REGISTER_FILE
 198                                                 else if (j == TYPE_ADR)
 199                                                         printf("r%02d", rd->locals[i][j].regoff);
 200 # endif
 201                                                 else if ((j == TYPE_FLT) || (j == TYPE_DBL))
 202                                                         printf("f%02d", rd->locals[i][j].regoff);
 203                                                 else {
 204 # if defined(SUPPORT_COMBINE_INTEGER_REGISTERS)
 205                                                         if (IS_2_WORD_TYPE(j))
 206                                                                 printf(" %3s/%3s",
 207                                                                            regs[GET_LOW_REG(rd->locals[i][j].regoff)],
 208                                                                            regs[GET_HIGH_REG(rd->locals[i][j].regoff)]);
 209                                                         else
 210 # endif
 211                                                                 printf("%3s", regs[rd->locals[i][j].regoff]);
 212                                                 }
 213                                         }
 214                                 }
 215 # if defined(ENABLE_INTRP)
 216                         }
 217 # endif
 218                 }
 219 #endif /* defined(ENABLE_JIT) && defined(ENABLE_DISASSEMBLER) */
 220
 221                 printf("\n");
 222         }
 223         printf("\n");
 224         }
 225
 226         if (stage >= SHOW_STACK && rd) {
 227 #if defined(ENABLE_LSRA) || defined(ENABLE_SSA)
 228         if (!opt_lsra) {
 229 #endif
 230 #if defined(ENABLE_INTRP)
 231                 if (!opt_intrp) {
 232 #endif
 233         printf("Interface Table:\n");
 234         for (i = 0; i < cd->maxstack; i++) {
 235                 if ((rd->interfaces[i][0].type >= 0) ||
 236                         (rd->interfaces[i][1].type >= 0) ||
 237                     (rd->interfaces[i][2].type >= 0) ||
 238                         (rd->interfaces[i][3].type >= 0) ||
 239                     (rd->interfaces[i][4].type >= 0)) {
 240                         printf("   %3d: ", i);
 241
 242 #if defined(ENABLE_JIT) && defined(ENABLE_DISASSEMBLER)
 243 # if defined(ENABLE_INTRP)
 244                         if (!opt_intrp) {
 245 # endif
 246                                 for (j = TYPE_INT; j <= TYPE_ADR; j++) {
 247                                         if (rd->interfaces[i][j].type >= 0) {
 248                                                 printf("   (%s) ", jit_type[j]);
 249                                                 if (stage >= SHOW_REGS) {
 250                                                         if (rd->interfaces[i][j].flags & SAVEDVAR) {
 251                                                                 if (rd->interfaces[i][j].flags & INMEMORY)
 252                                                                         printf("M%2d", rd->interfaces[i][j].regoff);
 253 #ifdef HAS_ADDRESS_REGISTER_FILE
 254                                                                 else if (j == TYPE_ADR)
 255                                                                         printf("R%02d", rd->interfaces[i][j].regoff);
 256 #endif
 257                                                                 else if ((j == TYPE_FLT) || (j == TYPE_DBL))
 258                                                                         printf("F%02d", rd->interfaces[i][j].regoff);
 259                                                                 else {
 260 #if defined(SUPPORT_COMBINE_INTEGER_REGISTERS)
 261                                                                         if (IS_2_WORD_TYPE(j))
 262                                                                                 printf(" %3s/%3s",
 263                                                                                            regs[GET_LOW_REG(rd->interfaces[i][j].regoff)],
 264                                                                                            regs[GET_HIGH_REG(rd->interfaces[i][j].regoff)]);
 265                                                                         else
 266 #endif
 267                                                                                 printf("%3s",regs[rd->interfaces[i][j].regoff]);
 268                                                                 }
 269                                                         }
 270                                                         else {
 271                                                                 if (rd->interfaces[i][j].flags & INMEMORY)
 272                                                                         printf("m%2d", rd->interfaces[i][j].regoff);
 273 #ifdef HAS_ADDRESS_REGISTER_FILE
 274                                                                 else if (j == TYPE_ADR)
 275                                                                         printf("r%02d", rd->interfaces[i][j].regoff);
 276 #endif
 277                                                                 else if ((j == TYPE_FLT) || (j == TYPE_DBL))
 278                                                                         printf("f%02d", rd->interfaces[i][j].regoff);
 279                                                                 else {
 280 #if defined(SUPPORT_COMBINE_INTEGER_REGISTERS)
 281                                                                         if (IS_2_WORD_TYPE(j))
 282                                                                                 printf(" %3s/%3s",
 283                                                                                            regs[GET_LOW_REG(rd->interfaces[i][j].regoff)],
 284                                                                                            regs[GET_HIGH_REG(rd->interfaces[i][j].regoff)]);
 285                                                                         else
 286 #endif
 287                                                                                 printf("%3s",regs[rd->interfaces[i][j].regoff]);
 288                                                                 }
 289                                                         }
 290                                                 }
 291                                         }
 292                                 }
 293                                 printf("\n");
 294 # if defined(ENABLE_INTRP)
 295                         }
 296 # endif
 297 #endif /* defined(ENABLE_JIT) && defined(ENABLE_DISASSEMBLER) */
 298
 299                 }
 300         }
 301         printf("\n");
 302
 303 #if defined(ENABLE_INTRP)
 304                 }
 305 #endif
 306 #if defined(ENABLE_LSRA) || defined(ENABLE_SSA)
 307         }
 308 #endif
 309         } /* if >= SHOW_STACK */
 310
 311         if (code->rplpoints) {
 312                 printf("Replacement Points:\n");
 313                 replace_show_replacement_points(code);
 314                 printf("\n");
 315         }
 316
 317 #if defined(ENABLE_DISASSEMBLER)
 318         /* show code before first basic block */
 319
 320         if ((stage >= SHOW_CODE) && JITDATA_HAS_FLAG_SHOWDISASSEMBLE(jd)) {
 321                 u1ptr = (u1 *) ((ptrint) code->mcode + cd->dseglen);
 322
 323                 for (; u1ptr < (u1 *) ((ptrint) code->mcode + cd->dseglen + jd->new_basicblocks[0].mpc);)
 324                         DISASSINSTR(u1ptr);
 325
 326                 printf("\n");
 327         }
 328 #endif
 329
 330         /* show code of all basic blocks */
 331
 332         for (bptr = jd->new_basicblocks; bptr != NULL; bptr = bptr->next)
 333                 new_show_basicblock(jd, bptr, stage);
 334
 335 #if defined(ENABLE_DISASSEMBLER)
 336         /* show stubs code */
 337
 338         if (stage >= SHOW_CODE && opt_showdisassemble && opt_showexceptionstubs) {
 339                 printf("\nStubs code:\n");
 340                 printf("Length: %d\n\n", (s4) (code->mcodelength -
 341                                                                            ((ptrint) cd->dseglen + lastbptr->mpc)));
 342
 343                 u1ptr = (u1 *) ((ptrint) code->mcode + cd->dseglen + lastbptr->mpc);
 344
 345                 for (; (ptrint) u1ptr < ((ptrint) code->mcode + code->mcodelength);)
 346                         DISASSINSTR(u1ptr);
 347
 348                 printf("\n");
 349         }
 350 #endif
 351
 352         LOCK_MONITOR_EXIT(show_global_lock);
 353
 354         /* finally flush the output */
 355
 356         fflush(stdout);
 357 }
 358 #endif /* !defined(NDEBUG) */
 359
 360
 361 /* show_basicblock *************************************************************
 362
 363    Print the intermediate representation of a basic block.
 364
 365    NOTE: Currently this function may only be called after register allocation!
 366
 367 *******************************************************************************/
 368
 369 #if !defined(NDEBUG)
 370 void new_show_basicblock(jitdata *jd, basicblock *bptr, int stage)
 371 {
 372         methodinfo  *m;
 373         codeinfo    *code;
 374         codegendata *cd;
 375         s4           i;
 376         bool         deadcode;
 377         instruction *iptr;
 378         u1          *u1ptr;
 379
 380         /* get required compiler data */
 381
 382         m    = jd->m;
 383         code = jd->code;
 384         cd   = jd->cd;
 385
 386         if (bptr->flags != BBDELETED) {
 387                 deadcode = bptr->flags <= BBREACHED;
 388
 389                 printf("======== %sL%03d ======== (flags: %d, bitflags: %01x, next: %d, type: ",
 390                                 (bptr->bitflags & BBFLAG_REPLACEMENT) ? "<REPLACE> " : "",
 391                            bptr->nr, bptr->flags, bptr->bitflags,
 392                            (bptr->next) ? (bptr->next->nr) : -1);
 393
 394                 switch (bptr->type) {
 395                 case BBTYPE_STD:
 396                         printf("STD");
 397                         break;
 398                 case BBTYPE_EXH:
 399                         printf("EXH");
 400                         break;
 401                 case BBTYPE_SBR:
 402                         printf("SBR");
 403                         break;
 404                 }
 405
 406                 printf(", instruction count: %d, predecessors: %d [ ",
 407                            bptr->icount, bptr->predecessorcount);
 408
 409                 for (i = 0; i < bptr->predecessorcount; i++)
 410                         printf("%d ", bptr->predecessors[i]->nr);
 411
 412                 printf("]):\n");
 413
 414                 if (stage >= SHOW_STACK) {
 415                         printf("IN:  ");
 416                         new_show_variable_array(jd, bptr->invars, bptr->indepth, stage);
 417                         printf("\n");
 418                 }
 419
 420                 iptr = bptr->iinstr;
 421
 422                 for (i = 0; i < bptr->icount; i++, iptr++) {
 423                         printf("%4d:  ", iptr->line);
 424
 425                         new_show_icmd(jd, iptr, deadcode, stage);
 426                         printf("\n");
 427                 }
 428
 429                 if (stage >= SHOW_STACK) {
 430                         printf("OUT: ");
 431                         new_show_variable_array(jd, bptr->outvars, bptr->outdepth, stage);
 432                         printf("\n");
 433                 }
 434
 435 #if defined(ENABLE_DISASSEMBLER)
 436                 if ((stage >= SHOW_CODE) && JITDATA_HAS_FLAG_SHOWDISASSEMBLE(jd) &&
 437                         (!deadcode))
 438                 {
 439                         printf("\n");
 440                         u1ptr = (u1 *) (code->mcode + cd->dseglen + bptr->mpc);
 441
 442                         if (bptr->next != NULL) {
 443                                 for (; u1ptr < (u1 *) (code->mcode + cd->dseglen + bptr->next->mpc);)
 444                                         DISASSINSTR(u1ptr);
 445
 446                         }
 447                         else {
 448                                 for (; u1ptr < (u1 *) (code->mcode + code->mcodelength);)
 449                                         DISASSINSTR(u1ptr);
 450                         }
 451                         printf("\n");
 452                 }
 453 #endif
 454         }
 455 }
 456 #endif /* !defined(NDEBUG) */
 457
 458
 459 /* show_icmd *******************************************************************
 460
 461    Print the intermediate representation of an instruction.
 462
 463    NOTE: Currently this function may only be called after register allocation!
 464
 465 *******************************************************************************/
 466
 467 #if !defined(NDEBUG)
 468
 469 #define SHOW_TARGET(target)                                          \
 470         if (stage >= SHOW_STACK) {                                   \
 471             printf("--> L%03d ", (target).block->nr);                \
 472         }                                                            \
 473         else if (stage >= SHOW_PARSE) {                              \
 474             printf("--> insindex %d (L%03d) ", (target).insindex,    \
 475                 jd->new_basicblocks[jd->new_basicblockindex[         \
 476                 (target).insindex]].nr);                             \
 477         }                                                            \
 478         else {                                                       \
 479             printf("--> insindex %d ", (target).insindex);           \
 480         }
 481
 482 #define SHOW_INT_CONST(val)                                          \
 483         if (stage >= SHOW_PARSE) {                                   \
 484             printf("%ld ", (long) (val));                            \
 485         }                                                            \
 486         else {                                                       \
 487             printf("iconst ");                                       \
 488         }
 489
 490 #define SHOW_LNG_CONST(val)                                          \
 491         if (stage >= SHOW_PARSE) {                                   \
 492             printf("%lld ", (long long)(val));                       \
 493         }                                                            \
 494         else {                                                       \
 495             printf("lconst ");                                       \
 496         }
 497
 498 #define SHOW_FLT_CONST(val)                                          \
 499         if (stage >= SHOW_PARSE) {                                   \
 500             printf("%g ", (val));                                    \
 501         }                                                            \
 502         else {                                                       \
 503             printf("fconst ");                                       \
 504         }
 505
 506 #define SHOW_DBL_CONST(val)                                          \
 507         if (stage >= SHOW_PARSE) {                                   \
 508             printf("%g ", (val));                                    \
 509         }                                                            \
 510         else {                                                       \
 511             printf("dconst ");                                       \
 512         }
 513
 514 #define SHOW_INDEX(index)                                            \
 515         if (stage >= SHOW_PARSE) {                                   \
 516             printf("%d ", index);                                    \
 517         }                                                            \
 518         else {                                                       \
 519             printf("index");                                         \
 520         }
 521
 522 #define SHOW_STRING(val)                                             \
 523         if (stage >= SHOW_PARSE) {                                   \
 524             putchar('"');                                            \
 525             utf_display_printable_ascii(                             \
 526                 javastring_toutf((java_lang_String *)(val), false)); \
 527             printf("\" ");                                           \
 528         }                                                            \
 529         else {                                                       \
 530             printf("string ");                                       \
 531         }
 532
 533 #define SHOW_CLASSREF_OR_CLASSINFO(c)                                \
 534         if (stage >= SHOW_PARSE) {                                   \
 535             if (IS_CLASSREF(c))                                      \
 536                 class_classref_print(c.ref);                         \
 537             else                                                     \
 538                 class_print(c.cls);                                  \
 539             putchar(' ');                                            \
 540         }                                                            \
 541         else {                                                       \
 542             printf("class ");                                        \
 543         }
 544
 545 #define SHOW_FIELD(fmiref)                                           \
 546         if (stage >= SHOW_PARSE) {                                   \
 547             field_fieldref_print(fmiref);                            \
 548             putchar(' ');                                            \
 549         }                                                            \
 550         else {                                                       \
 551             printf("field ");                                        \
 552         }
 553
 554 #define SHOW_STACKVAR(sp)                                            \
 555         new_show_stackvar(jd, (sp), stage)
 556
 557 #define SHOW_S1(iptr)                                                \
 558         if (stage >= SHOW_STACK) {                                   \
 559             SHOW_STACKVAR(iptr->s1.var);                             \
 560         }
 561
 562 #define SHOW_S2(iptr)                                                \
 563         if (stage >= SHOW_STACK) {                                   \
 564             SHOW_STACKVAR(iptr->sx.s23.s2.var);                      \
 565         }
 566
 567 #define SHOW_S3(iptr)                                                \
 568         if (stage >= SHOW_STACK) {                                   \
 569             SHOW_STACKVAR(iptr->sx.s23.s3.var);                      \
 570         }
 571
 572 #define SHOW_DST(iptr)                                               \
 573         if (stage >= SHOW_STACK) {                                   \
 574             printf("=> ");                                           \
 575             SHOW_STACKVAR(iptr->dst.var);                            \
 576         }
 577
 578 #define SHOW_S1_LOCAL(iptr)                                          \
 579         if (stage >= SHOW_STACK) {                                   \
 580             printf("L%d ", iptr->s1.localindex);                     \
 581         }
 582
 583 #define SHOW_DST_LOCAL(iptr)                                         \
 584         if (stage >= SHOW_STACK) {                                   \
 585             printf("=> L%d ", iptr->dst.localindex);                 \
 586         }
 587
 588 static void new_show_stackvar(jitdata *jd, stackptr sp, int stage)
 589 {
 590         char type;
 591
 592         switch (sp->type) {
 593                 case TYPE_INT: type = 'i'; break;
 594                 case TYPE_LNG: type = 'l'; break;
 595                 case TYPE_FLT: type = 'f'; break;
 596                 case TYPE_DBL: type = 'd'; break;
 597                 case TYPE_ADR: type = 'a'; break;
 598                 default:       type = '?';
 599         }
 600         printf("S%c%d", type, (int) (sp - jd->new_stack));
 601
 602         if (stage >= SHOW_REGS) {
 603                 putchar('(');
 604
 605                 if (sp->flags & SAVEDVAR) {
 606                         switch (sp->varkind) {
 607                         case TEMPVAR:
 608                                 if (sp->flags & INMEMORY)
 609                                         printf("M%02d", sp->regoff);
 610 #ifdef HAS_ADDRESS_REGISTER_FILE
 611                                 else if (sp->type == TYPE_ADR)
 612                                         printf("R%02d", sp->regoff);
 613 #endif
 614                                 else if (IS_FLT_DBL_TYPE(sp->type))
 615                                         printf("F%02d", sp->regoff);
 616                                 else {
 617 #if defined(SUPPORT_COMBINE_INTEGER_REGISTERS)
 618                                         if (IS_2_WORD_TYPE(sp->type)) {
 619 # if defined(ENABLE_JIT) && defined(ENABLE_DISASSEMBLER)
 620 #  if defined(ENABLE_INTRP)
 621                                                 if (opt_intrp)
 622                                                         printf("%3d/%3d", GET_LOW_REG(sp->regoff),
 623                                                                    GET_HIGH_REG(sp->regoff));
 624                                                 else
 625 #  endif
 626                                                         printf("%3s/%3s", regs[GET_LOW_REG(sp->regoff)],
 627                                                                    regs[GET_HIGH_REG(sp->regoff)]);
 628 # else
 629                                                 printf("%3d/%3d", GET_LOW_REG(sp->regoff),
 630                                                            GET_HIGH_REG(sp->regoff));
 631 # endif
 632                                         }
 633                                         else
 634 #endif /* defined(SUPPORT_COMBINE_INTEGER_REGISTERS) */
 635                                                 {
 636 #if defined(ENABLE_JIT) && defined(ENABLE_DISASSEMBLER)
 637 # if defined(ENABLE_INTRP)
 638                                                         if (opt_intrp)
 639                                                                 printf("%3d", sp->regoff);
 640                                                         else
 641 # endif
 642                                                                 printf("%3s", regs[sp->regoff]);
 643 #else
 644                                                         printf("%3d", sp->regoff);
 645 #endif
 646                                                 }
 647                                 }
 648                                 break;
 649                         case STACKVAR:
 650                                 printf("I%02d", sp->varnum);
 651                                 break;
 652                         case LOCALVAR:
 653                                 printf("L%02d", sp->varnum);
 654                                 break;
 655                         case ARGVAR:
 656                                 if (sp->varnum == -1) {
 657                                         /* Return Value                                  */
 658                                         /* varkind ARGVAR "misused for this special case */
 659                                         printf(" V0");
 660                                 }
 661                                 else /* "normal" Argvar */
 662                                         printf("A%02d", sp->varnum);
 663                                 break;
 664                         default:
 665                                 printf("!xx {kind=%d, num=%d}", sp->varkind, sp->varnum);
 666                         }
 667                 }
 668                 else { /* not SAVEDVAR */
 669                         switch (sp->varkind) {
 670                         case TEMPVAR:
 671                                 if (sp->flags & INMEMORY)
 672                                         printf("m%02d", sp->regoff);
 673 #ifdef HAS_ADDRESS_REGISTER_FILE
 674                                 else if (sp->type == TYPE_ADR)
 675                                         printf("r%02d", sp->regoff);
 676 #endif
 677                                 else if (IS_FLT_DBL_TYPE(sp->type))
 678                                         printf("f%02d", sp->regoff);
 679                                 else {
 680 #if defined(SUPPORT_COMBINE_INTEGER_REGISTERS)
 681                                         if (IS_2_WORD_TYPE(sp->type)) {
 682 # if defined(ENABLE_JIT) && defined(ENABLE_DISASSEMBLER)
 683 #  if defined(ENABLE_INTRP)
 684                                                 if (opt_intrp)
 685                                                         printf("%3d/%3d", GET_LOW_REG(sp->regoff),
 686                                                                    GET_HIGH_REG(sp->regoff));
 687                                                 else
 688 #  endif
 689                                                         printf("%3s/%3s", regs[GET_LOW_REG(sp->regoff)],
 690                                                                    regs[GET_HIGH_REG(sp->regoff)]);
 691 # else
 692                                                 printf("%3d/%3d", GET_LOW_REG(sp->regoff),
 693                                                            GET_HIGH_REG(sp->regoff));
 694 # endif
 695                                         }
 696                                         else
 697 #endif /* defined(SUPPORT_COMBINE_INTEGER_REGISTERS) */
 698                                                 {
 699 #if defined(ENABLE_JIT) && defined(ENABLE_DISASSEMBLER)
 700 # if defined(ENABLE_INTRP)
 701                                                         if (opt_intrp)
 702                                                                 printf("%3d", sp->regoff);
 703                                                         else
 704 # endif
 705                                                                 printf("%3s", regs[sp->regoff]);
 706 #else
 707                                                         printf("%3d", sp->regoff);
 708 #endif
 709                                                 }
 710                                 }
 711                                 break;
 712                         case STACKVAR:
 713                                 printf("i%02d", sp->varnum);
 714                                 break;
 715                         case LOCALVAR:
 716                                 printf("l%02d", sp->varnum);
 717                                 break;
 718                         case ARGVAR:
 719                                 if (sp->varnum == -1) {
 720                                         /* Return Value                                  */
 721                                         /* varkind ARGVAR "misused for this special case */
 722                                         printf(" v0");
 723                                 }
 724                                 else /* "normal" Argvar */
 725                                 printf("a%02d", sp->varnum);
 726                                 break;
 727                         default:
 728                                 printf("?xx {kind=%d, num=%d}", sp->varkind, sp->varnum);
 729                         }
 730                 }
 731
 732                 putchar(')');
 733         }
 734         putchar(' ');
 735 }
 736
 737 static void new_show_variable_array(jitdata *jd, stackptr *vars, int n, int stage)
 738 {
 739         int i;
 740
 741         printf("[");
 742         for (i=0; i<n; ++i) {
 743                 if (i)
 744                         printf(" ");
 745                 new_show_stackvar(jd, vars[i], stage);
 746         }
 747         printf("]");
 748 }
 749
 750 void new_show_icmd(jitdata *jd, instruction *iptr, bool deadcode, int stage)
 751 {
 752         u2                 opcode;
 753         branch_target_t   *table;
 754         lookup_target_t   *lookup;
 755         constant_FMIref   *fmiref;
 756         stackptr          *argp;
 757         s4                 i;
 758
 759         /* get the opcode and the condition */
 760
 761         opcode    =  iptr->opc;
 762
 763         printf("%s ", icmd_names[opcode]);
 764
 765         if (stage < SHOW_PARSE)
 766                 return;
 767
 768         if (deadcode)
 769                 stage = SHOW_PARSE;
 770
 771         /* Print the condition for conditional instructions. */
 772
 773         /* XXX print condition from flags */
 774
 775         if (iptr->flags.bits & INS_FLAG_UNRESOLVED)
 776                 printf("(UNRESOLVED) ");
 777
 778         switch (opcode) {
 779
 780         case ICMD_POP:
 781         case ICMD_CHECKNULL:
 782         case ICMD_CHECKNULL_POP:
 783                 SHOW_S1(iptr);
 784                 break;
 785
 786                 /* unary */
 787         case ICMD_ARRAYLENGTH:
 788         case ICMD_INEG:
 789         case ICMD_LNEG:
 790         case ICMD_FNEG:
 791         case ICMD_DNEG:
 792         case ICMD_I2L:
 793         case ICMD_I2F:
 794         case ICMD_I2D:
 795         case ICMD_L2I:
 796         case ICMD_L2F:
 797         case ICMD_L2D:
 798         case ICMD_F2I:
 799         case ICMD_F2L:
 800         case ICMD_F2D:
 801         case ICMD_D2I:
 802         case ICMD_D2L:
 803         case ICMD_D2F:
 804         case ICMD_INT2BYTE:
 805         case ICMD_INT2CHAR:
 806         case ICMD_INT2SHORT:
 807                 SHOW_S1(iptr);
 808                 SHOW_DST(iptr);
 809                 break;
 810
 811                 /* binary */
 812         case ICMD_IADD:
 813         case ICMD_LADD:
 814         case ICMD_FADD:
 815         case ICMD_DADD:
 816         case ICMD_ISUB:
 817         case ICMD_LSUB:
 818         case ICMD_FSUB:
 819         case ICMD_DSUB:
 820         case ICMD_IMUL:
 821         case ICMD_LMUL:
 822         case ICMD_FMUL:
 823         case ICMD_DMUL:
 824         case ICMD_IDIV:
 825         case ICMD_LDIV:
 826         case ICMD_FDIV:
 827         case ICMD_DDIV:
 828         case ICMD_IREM:
 829         case ICMD_LREM:
 830         case ICMD_FREM:
 831         case ICMD_DREM:
 832         case ICMD_ISHL:
 833         case ICMD_LSHL:
 834         case ICMD_ISHR:
 835         case ICMD_LSHR:
 836         case ICMD_IUSHR:
 837         case ICMD_LUSHR:
 838         case ICMD_IAND:
 839         case ICMD_LAND:
 840         case ICMD_IOR:
 841         case ICMD_LOR:
 842         case ICMD_IXOR:
 843         case ICMD_LXOR:
 844         case ICMD_LCMP:
 845         case ICMD_FCMPL:
 846         case ICMD_FCMPG:
 847         case ICMD_DCMPL:
 848         case ICMD_DCMPG:
 849                 SHOW_S1(iptr);
 850                 SHOW_S2(iptr);
 851                 SHOW_DST(iptr);
 852                 break;
 853
 854                 /* binary/const INT */
 855         case ICMD_IADDCONST:
 856         case ICMD_ISUBCONST:
 857         case ICMD_IMULCONST:
 858         case ICMD_IMULPOW2:
 859         case ICMD_IDIVPOW2:
 860         case ICMD_IREMPOW2:
 861         case ICMD_IANDCONST:
 862         case ICMD_IORCONST:
 863         case ICMD_IXORCONST:
 864         case ICMD_ISHLCONST:
 865         case ICMD_ISHRCONST:
 866         case ICMD_IUSHRCONST:
 867         case ICMD_LSHLCONST:
 868         case ICMD_LSHRCONST:
 869         case ICMD_LUSHRCONST:
 870                 SHOW_S1(iptr);
 871                 SHOW_INT_CONST(iptr->sx.val.i);
 872                 SHOW_DST(iptr);
 873                 break;
 874
 875                 /* ?ASTORECONST (trinary/const INT) */
 876         case ICMD_IASTORECONST:
 877         case ICMD_BASTORECONST:
 878         case ICMD_CASTORECONST:
 879         case ICMD_SASTORECONST:
 880                 SHOW_S1(iptr);
 881                 SHOW_S2(iptr);
 882                 SHOW_INT_CONST(iptr->sx.s23.s3.constval);
 883                 break;
 884
 885                 /* const INT */
 886         case ICMD_ICONST:
 887                 SHOW_INT_CONST(iptr->sx.val.i);
 888                 SHOW_DST(iptr);
 889                 break;
 890
 891                 /* binary/const LNG */
 892         case ICMD_LADDCONST:
 893         case ICMD_LSUBCONST:
 894         case ICMD_LMULCONST:
 895         case ICMD_LMULPOW2:
 896         case ICMD_LDIVPOW2:
 897         case ICMD_LREMPOW2:
 898         case ICMD_LANDCONST:
 899         case ICMD_LORCONST:
 900         case ICMD_LXORCONST:
 901                 SHOW_S1(iptr);
 902                 SHOW_LNG_CONST(iptr->sx.val.l);
 903                 SHOW_DST(iptr);
 904                 break;
 905
 906                 /* trinary/const LNG (<= pointer size) */
 907         case ICMD_LASTORECONST:
 908                 SHOW_S1(iptr);
 909                 SHOW_S2(iptr);
 910                 SHOW_LNG_CONST(iptr->sx.s23.s3.constval);
 911                 break;
 912
 913                 /* const LNG */
 914         case ICMD_LCONST:
 915                 SHOW_LNG_CONST(iptr->sx.val.l);
 916                 SHOW_DST(iptr);
 917                 break;
 918
 919                 /* const FLT */
 920         case ICMD_FCONST:
 921                 SHOW_FLT_CONST(iptr->sx.val.f);
 922                 SHOW_DST(iptr);
 923                 break;
 924
 925                 /* const DBL */
 926         case ICMD_DCONST:
 927                 SHOW_DBL_CONST(iptr->sx.val.d);
 928                 SHOW_DST(iptr);
 929                 break;
 930
 931                 /* const ADR */
 932         case ICMD_ACONST:
 933                 if (iptr->flags.bits & INS_FLAG_CLASS) {
 934                         SHOW_CLASSREF_OR_CLASSINFO(iptr->sx.val.c);
 935                 }
 936                 else if (iptr->sx.val.anyptr == NULL) {
 937                         printf("NULL ");
 938                 }
 939                 else {
 940                         SHOW_STRING(iptr->sx.val.stringconst);
 941                 }
 942                 SHOW_DST(iptr);
 943                 break;
 944
 945         case ICMD_AASTORECONST:
 946                 SHOW_S1(iptr);
 947                 SHOW_S2(iptr);
 948                 printf("%p ", (void*) iptr->sx.s23.s3.constval);
 949                 break;
 950
 951         case ICMD_GETFIELD:        /* 1 -> 1 */
 952         case ICMD_PUTFIELD:        /* 2 -> 0 */
 953         case ICMD_PUTSTATIC:       /* 1 -> 0 */
 954         case ICMD_GETSTATIC:       /* 0 -> 1 */
 955         case ICMD_PUTSTATICCONST:  /* 0 -> 0 */
 956         case ICMD_PUTFIELDCONST:   /* 1 -> 0 */
 957                 if (opcode != ICMD_GETSTATIC && opcode != ICMD_PUTSTATICCONST) {
 958                         SHOW_S1(iptr);
 959                         if (opcode == ICMD_PUTFIELD) {
 960                                 SHOW_S2(iptr);
 961                         }
 962                 }
 963                 INSTRUCTION_GET_FIELDREF(iptr, fmiref);
 964                 SHOW_FIELD(fmiref);
 965
 966                 if (opcode == ICMD_GETSTATIC || opcode == ICMD_GETFIELD) {
 967                         SHOW_DST(iptr);
 968                 }
 969                 break;
 970
 971         case ICMD_IINC:
 972                 SHOW_S1_LOCAL(iptr);
 973                 SHOW_INT_CONST(iptr->sx.val.i);
 974                 SHOW_DST_LOCAL(iptr);
 975                 break;
 976
 977         case ICMD_IASTORE:
 978         case ICMD_SASTORE:
 979         case ICMD_BASTORE:
 980         case ICMD_CASTORE:
 981         case ICMD_LASTORE:
 982         case ICMD_DASTORE:
 983         case ICMD_FASTORE:
 984         case ICMD_AASTORE:
 985                 SHOW_S1(iptr);
 986                 SHOW_S2(iptr);
 987                 SHOW_S3(iptr);
 988                 break;
 989
 990         case ICMD_IALOAD:
 991         case ICMD_SALOAD:
 992         case ICMD_BALOAD:
 993         case ICMD_CALOAD:
 994         case ICMD_LALOAD:
 995         case ICMD_DALOAD:
 996         case ICMD_FALOAD:
 997         case ICMD_AALOAD:
 998                 SHOW_S1(iptr);
 999                 SHOW_S2(iptr);
1000                 SHOW_DST(iptr);
1001                 break;
1002
1003         case ICMD_RET:
1004                 SHOW_S1_LOCAL(iptr);
1005                 break;
1006
1007         case ICMD_ILOAD:
1008         case ICMD_LLOAD:
1009         case ICMD_FLOAD:
1010         case ICMD_DLOAD:
1011         case ICMD_ALOAD:
1012                 SHOW_S1_LOCAL(iptr);
1013                 SHOW_DST(iptr);
1014                 break;
1015
1016         case ICMD_ISTORE:
1017         case ICMD_LSTORE:
1018         case ICMD_FSTORE:
1019         case ICMD_DSTORE:
1020         case ICMD_ASTORE:
1021                 SHOW_S1(iptr);
1022                 SHOW_DST_LOCAL(iptr);
1023                 break;
1024
1025         case ICMD_NEW:
1026                 SHOW_DST(iptr);
1027                 break;
1028
1029         case ICMD_NEWARRAY:
1030                 SHOW_DST(iptr);
1031                 break;
1032
1033         case ICMD_ANEWARRAY:
1034                 SHOW_DST(iptr);
1035                 break;
1036
1037         case ICMD_MULTIANEWARRAY:
1038                 if (stage >= SHOW_STACK) {
1039                         argp = iptr->sx.s23.s2.args;
1040                         i = iptr->s1.argcount;
1041                         while (i--) {
1042                                 SHOW_STACKVAR(*(argp++));
1043                         }
1044                 }
1045                 else {
1046                         printf("argcount=%d ", iptr->s1.argcount);
1047                 }
1048                 SHOW_DST(iptr);
1049                 break;
1050
1051         case ICMD_CHECKCAST:
1052                 SHOW_S1(iptr);
1053                 SHOW_DST(iptr);
1054                 break;
1055
1056         case ICMD_INSTANCEOF:
1057                 SHOW_S1(iptr);
1058                 SHOW_DST(iptr);
1059                 break;
1060
1061         case ICMD_INLINE_START:
1062         case ICMD_INLINE_END:
1063                 break;
1064
1065         case ICMD_BUILTIN:
1066                 if (stage >= SHOW_STACK) {
1067                         argp = iptr->sx.s23.s2.args;
1068                         i = iptr->s1.argcount;
1069                         while (i--) {
1070                                 SHOW_STACKVAR(*(argp++));
1071                         }
1072                 }
1073                 printf("%s ", iptr->sx.s23.s3.bte->cname);
1074                 if (iptr->sx.s23.s3.bte->md->returntype.type != TYPE_VOID) {
1075                         SHOW_DST(iptr);
1076                 }
1077                 break;
1078
1079         case ICMD_INVOKEVIRTUAL:
1080         case ICMD_INVOKESPECIAL:
1081         case ICMD_INVOKESTATIC:
1082         case ICMD_INVOKEINTERFACE:
1083                 if (stage >= SHOW_STACK) {
1084                         argp = iptr->sx.s23.s2.args;
1085                         i = iptr->s1.argcount;
1086                         while (i--) {
1087                                 SHOW_STACKVAR(*(argp++));
1088                         }
1089                 }
1090                 INSTRUCTION_GET_METHODREF(iptr, fmiref);
1091                 method_methodref_print(fmiref);
1092                 if (fmiref->parseddesc.md->returntype.type != TYPE_VOID) {
1093                         SHOW_DST(iptr);
1094                 }
1095                 break;
1096
1097         case ICMD_IFEQ:
1098         case ICMD_IFNE:
1099         case ICMD_IFLT:
1100         case ICMD_IFGE:
1101         case ICMD_IFGT:
1102         case ICMD_IFLE:
1103                 SHOW_S1(iptr);
1104                 SHOW_TARGET(iptr->dst);
1105                 break;
1106
1107         case ICMD_IF_LEQ:
1108         case ICMD_IF_LNE:
1109         case ICMD_IF_LLT:
1110         case ICMD_IF_LGE:
1111         case ICMD_IF_LGT:
1112         case ICMD_IF_LLE:
1113                 SHOW_S1(iptr);
1114                 SHOW_TARGET(iptr->dst);
1115                 break;
1116
1117         case ICMD_GOTO:
1118         case ICMD_INLINE_GOTO:
1119                 SHOW_TARGET(iptr->dst);
1120                 break;
1121
1122         case ICMD_JSR:
1123                 SHOW_TARGET(iptr->sx.s23.s3.jsrtarget);
1124                 SHOW_DST(iptr);
1125                 break;
1126
1127         case ICMD_IFNULL:
1128         case ICMD_IFNONNULL:
1129                 SHOW_S1(iptr);
1130                 SHOW_TARGET(iptr->dst);
1131                 break;
1132
1133         case ICMD_IF_ICMPEQ:
1134         case ICMD_IF_ICMPNE:
1135         case ICMD_IF_ICMPLT:
1136         case ICMD_IF_ICMPGE:
1137         case ICMD_IF_ICMPGT:
1138         case ICMD_IF_ICMPLE:
1139
1140         case ICMD_IF_LCMPEQ:
1141         case ICMD_IF_LCMPNE:
1142         case ICMD_IF_LCMPLT:
1143         case ICMD_IF_LCMPGE:
1144         case ICMD_IF_LCMPGT:
1145         case ICMD_IF_LCMPLE:
1146
1147         case ICMD_IF_FCMPEQ:
1148         case ICMD_IF_FCMPNE:
1149
1150         case ICMD_IF_FCMPL_LT:
1151         case ICMD_IF_FCMPL_GE:
1152         case ICMD_IF_FCMPL_GT:
1153         case ICMD_IF_FCMPL_LE:
1154
1155         case ICMD_IF_FCMPG_LT:
1156         case ICMD_IF_FCMPG_GE:
1157         case ICMD_IF_FCMPG_GT:
1158         case ICMD_IF_FCMPG_LE:
1159
1160         case ICMD_IF_DCMPEQ:
1161         case ICMD_IF_DCMPNE:
1162
1163         case ICMD_IF_DCMPL_LT:
1164         case ICMD_IF_DCMPL_GE:
1165         case ICMD_IF_DCMPL_GT:
1166         case ICMD_IF_DCMPL_LE:
1167
1168         case ICMD_IF_DCMPG_LT:
1169         case ICMD_IF_DCMPG_GE:
1170         case ICMD_IF_DCMPG_GT:
1171         case ICMD_IF_DCMPG_LE:
1172
1173         case ICMD_IF_ACMPEQ:
1174         case ICMD_IF_ACMPNE:
1175                 SHOW_S1(iptr);
1176                 SHOW_S2(iptr);
1177                 SHOW_TARGET(iptr->dst);
1178                 break;
1179
1180         case ICMD_TABLESWITCH:
1181                 SHOW_S1(iptr);
1182                 table = iptr->dst.table;
1183
1184                 i = iptr->sx.s23.s3.tablehigh
1185                         - iptr->sx.s23.s2.tablelow + 1;
1186
1187                 printf("high=%d low=%d count=%d\n", iptr->sx.s23.s3.tablehigh, iptr->sx.s23.s2.tablelow, i);
1188                 while (--i >= 0) {
1189                         printf("\t\t%d --> ", table - iptr->dst.table);
1190                         if (stage >= SHOW_STACK) {
1191                                 printf("L%03d\n", table->block->nr);
1192                         }
1193                         else {
1194                                 printf("insindex %d (L%03d)\n", table->insindex, BLOCK_OF(table->insindex)->nr);
1195                         }
1196                         table++;
1197                 }
1198
1199                 break;
1200
1201         case ICMD_LOOKUPSWITCH:
1202                 SHOW_S1(iptr);
1203                 break;
1204
1205         case ICMD_ARETURN:
1206                 SHOW_S1(iptr);
1207                 break;
1208
1209         case ICMD_ATHROW:
1210                 SHOW_S1(iptr);
1211                 break;
1212
1213         case ICMD_DUP:
1214                 SHOW_S1(iptr);
1215                 SHOW_DST(iptr);
1216                 break;
1217
1218         case ICMD_DUP2:
1219                 if (stage >= SHOW_STACK) {
1220                         SHOW_STACKVAR(iptr->dst.dupslots[0]);
1221                         SHOW_STACKVAR(iptr->dst.dupslots[1]);
1222                         printf("=> ");
1223                         SHOW_STACKVAR(iptr->dst.dupslots[2+0]);
1224                         SHOW_STACKVAR(iptr->dst.dupslots[2+1]);
1225                 }
1226                 break;
1227
1228         case ICMD_DUP_X1:
1229                 if (stage >= SHOW_STACK) {
1230                         SHOW_STACKVAR(iptr->dst.dupslots[0]);
1231                         SHOW_STACKVAR(iptr->dst.dupslots[1]);
1232                         printf("=> ");
1233                         SHOW_STACKVAR(iptr->dst.dupslots[2+0]);
1234                         SHOW_STACKVAR(iptr->dst.dupslots[2+1]);
1235                         SHOW_STACKVAR(iptr->dst.dupslots[2+2]);
1236                 }
1237                 break;
1238
1239         case ICMD_DUP2_X1:
1240                 if (stage >= SHOW_STACK) {
1241                         SHOW_STACKVAR(iptr->dst.dupslots[0]);
1242                         SHOW_STACKVAR(iptr->dst.dupslots[1]);
1243                         SHOW_STACKVAR(iptr->dst.dupslots[2]);
1244                         printf("=> ");
1245                         SHOW_STACKVAR(iptr->dst.dupslots[3+0]);
1246                         SHOW_STACKVAR(iptr->dst.dupslots[3+1]);
1247                         SHOW_STACKVAR(iptr->dst.dupslots[3+2]);
1248                         SHOW_STACKVAR(iptr->dst.dupslots[3+3]);
1249                         SHOW_STACKVAR(iptr->dst.dupslots[3+4]);
1250                 }
1251                 break;
1252
1253         case ICMD_DUP_X2:
1254                 if (stage >= SHOW_STACK) {
1255                         SHOW_STACKVAR(iptr->dst.dupslots[0]);
1256                         SHOW_STACKVAR(iptr->dst.dupslots[1]);
1257                         SHOW_STACKVAR(iptr->dst.dupslots[2]);
1258                         printf("=> ");
1259                         SHOW_STACKVAR(iptr->dst.dupslots[3+0]);
1260                         SHOW_STACKVAR(iptr->dst.dupslots[3+1]);
1261                         SHOW_STACKVAR(iptr->dst.dupslots[3+2]);
1262                         SHOW_STACKVAR(iptr->dst.dupslots[3+3]);
1263                 }
1264                 break;
1265
1266         case ICMD_DUP2_X2:
1267                 if (stage >= SHOW_STACK) {
1268                         SHOW_STACKVAR(iptr->dst.dupslots[0]);
1269                         SHOW_STACKVAR(iptr->dst.dupslots[1]);
1270                         SHOW_STACKVAR(iptr->dst.dupslots[2]);
1271                         SHOW_STACKVAR(iptr->dst.dupslots[4]);
1272                         printf("=> ");
1273                         SHOW_STACKVAR(iptr->dst.dupslots[4+0]);
1274                         SHOW_STACKVAR(iptr->dst.dupslots[4+1]);
1275                         SHOW_STACKVAR(iptr->dst.dupslots[4+2]);
1276                         SHOW_STACKVAR(iptr->dst.dupslots[4+3]);
1277                         SHOW_STACKVAR(iptr->dst.dupslots[4+4]);
1278                         SHOW_STACKVAR(iptr->dst.dupslots[4+5]);
1279                 }
1280                 break;
1281
1282         case ICMD_SWAP:
1283                 if (stage >= SHOW_STACK) {
1284                         SHOW_STACKVAR(iptr->dst.dupslots[0]);
1285                         SHOW_STACKVAR(iptr->dst.dupslots[1]);
1286                         printf("=> ");
1287                         SHOW_STACKVAR(iptr->dst.dupslots[2+0]);
1288                         SHOW_STACKVAR(iptr->dst.dupslots[2+1]);
1289                 }
1290                 break;
1291
1292         }
1293 }
1294 #endif /* !defined(NDEBUG) */
1295
1296
1297 /*
1298  * These are local overrides for various environment variables in Emacs.
1299  * Please do not remove this and leave it at the end of the file, where
1300  * Emacs will automagically detect them.
1301  * ---------------------------------------------------------------------
1302  * Local variables:
1303  * mode: c
1304  * indent-tabs-mode: t
1305  * c-basic-offset: 4
1306  * tab-width: 4
1307  * End:
1308  * vim:noexpandtab:sw=4:ts=4:
1309  */