src/vm/jit/arm/codegen.c

   1 /* src/vm/jit/arm/codegen.c - machine code generator for Arm
   2
   3    Copyright (C) 1996-2005, 2006, 2007 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    $Id: codegen.c 7591 2007-03-28 19:07:32Z twisti $
  26
  27 */
  28
  29
  30 #include "config.h"
  31
  32 #include <assert.h>
  33 #include <stdio.h>
  34
  35 #include "vm/types.h"
  36
  37 #include "md-abi.h"
  38
  39 #include "vm/jit/arm/arch.h"
  40 #include "vm/jit/arm/codegen.h"
  41
  42 #include "mm/memory.h"
  43
  44 #include "native/native.h"
  45
  46 #if defined(ENABLE_THREADS)
  47 # include "threads/native/lock.h"
  48 #endif
  49
  50 #include "vm/builtin.h"
  51 #include "vm/exceptions.h"
  52 #include "vm/global.h"
  53 #include "vm/vm.h"
  54
  55 #include "vm/jit/asmpart.h"
  56 #include "vm/jit/codegen-common.h"
  57 #include "vm/jit/dseg.h"
  58 #include "vm/jit/emit-common.h"
  59 #include "vm/jit/jit.h"
  60 #include "vm/jit/md.h"
  61 #include "vm/jit/methodheader.h"
  62 #include "vm/jit/parse.h"
  63 #include "vm/jit/patcher.h"
  64 #include "vm/jit/reg.h"
  65
  66 #if defined(ENABLE_LSRA)
  67 #include "vm/jit/allocator/lsra.h"
  68 #endif
  69
  70 #include "vmcore/loader.h"
  71 #include "vmcore/options.h"
  72
  73
  74 /* codegen_emit ****************************************************************
  75
  76    Generates machine code.
  77
  78 *******************************************************************************/
  79
  80 bool codegen_emit(jitdata *jd)
  81 {
  82         methodinfo         *m;
  83         codeinfo           *code;
  84         codegendata        *cd;
  85         registerdata       *rd;
  86         s4              i, t, len;
  87         s4              s1, s2, s3, d;
  88         s4              disp;
  89         varinfo        *var;
  90         basicblock     *bptr;
  91         instruction    *iptr;
  92         exception_entry *ex;
  93         s4              fieldtype;
  94         s4              varindex;
  95
  96         s4              spilledregs_num;
  97         s4              savedregs_num;
  98         u2              savedregs_bitmask;
  99         u2              currentline;
 100
 101         methodinfo         *lm;             /* local methodinfo for ICMD_INVOKE* */
 102         unresolved_method  *um;
 103         builtintable_entry *bte;
 104         methoddesc         *md;
 105
 106         /* get required compiler data */
 107
 108         m    = jd->m;
 109         code = jd->code;
 110         cd   = jd->cd;
 111         rd   = jd->rd;
 112
 113         /* prevent compiler warnings */
 114
 115         lm  = NULL;
 116         um  = NULL;
 117         bte = NULL;
 118
 119         fieldtype = -1;
 120
 121         /* space to save used callee saved registers */
 122
 123         savedregs_num = (jd->isleafmethod) ? 0 : 1;       /* space to save the LR */
 124         savedregs_num += (INT_SAV_CNT - rd->savintreguse);
 125         savedregs_num += (FLT_SAV_CNT - rd->savfltreguse);
 126
 127         spilledregs_num = rd->memuse;
 128
 129 #if defined(ENABLE_THREADS)        /* space to save argument of monitor_enter */
 130         if (checksync && (m->flags & ACC_SYNCHRONIZED))
 131                 spilledregs_num++;
 132 #endif
 133
 134         cd->stackframesize = spilledregs_num + savedregs_num;
 135
 136         /* XXX QUICK FIX: We shouldn't align the stack in Java code, but
 137            only in native stubs. */
 138         /* align stack to 8-byte */
 139
 140         cd->stackframesize = (cd->stackframesize + 1) & ~1;
 141
 142         /* SECTION: Method Header */
 143         /* create method header */
 144
 145         (void) dseg_add_unique_address(cd, code);              /* CodeinfoPointer */
 146         (void) dseg_add_unique_s4(cd, cd->stackframesize * 4); /* FrameSize       */
 147
 148 #if defined(ENABLE_THREADS)
 149         /* IsSync contains the offset relative to the stack pointer for the
 150            argument of monitor_exit used in the exception handler. Since the
 151            offset could be zero and give a wrong meaning of the flag it is
 152            offset by one.
 153         */
 154
 155         if (checksync && (m->flags & ACC_SYNCHRONIZED))
 156                 (void) dseg_add_unique_s4(cd, (rd->memuse + 1) * 4);/* IsSync         */
 157         else
 158 #endif
 159                 (void) dseg_add_unique_s4(cd, 0);                  /* IsSync          */
 160
 161         (void) dseg_add_unique_s4(cd, jd->isleafmethod);       /* IsLeaf          */
 162         (void) dseg_add_unique_s4(cd, INT_SAV_CNT - rd->savintreguse); /* IntSave */
 163         (void) dseg_add_unique_s4(cd, FLT_SAV_CNT - rd->savfltreguse); /* FltSave */
 164         (void) dseg_addlinenumbertablesize(cd);
 165         (void) dseg_add_unique_s4(cd, jd->exceptiontablelength); /* ExTableSize   */
 166
 167         /* create exception table */
 168
 169         for (ex = jd->exceptiontable; ex != NULL; ex = ex->down) {
 170                 dseg_add_target(cd, ex->start);
 171                 dseg_add_target(cd, ex->end);
 172                 dseg_add_target(cd, ex->handler);
 173                 (void) dseg_add_unique_address(cd, ex->catchtype.any);
 174         }
 175
 176         /* save return address and used callee saved registers */
 177
 178         savedregs_bitmask = 0;
 179
 180         if (!jd->isleafmethod)
 181                 savedregs_bitmask = (1<<REG_LR);
 182
 183         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--)
 184                 savedregs_bitmask |= (1<<(rd->savintregs[i]));
 185
 186 #if !defined(NDEBUG)
 187         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
 188                 log_text("!!! CODEGEN: floating-point callee saved registers are not saved to stack (SEVERE! STACK IS MESSED UP!)");
 189                 /* TODO: floating-point */
 190         }
 191 #endif
 192
 193         if (savedregs_bitmask)
 194                 M_STMFD(savedregs_bitmask, REG_SP);
 195
 196         /* create additional stack frame for spilled variables (if necessary) */
 197
 198         if ((cd->stackframesize - savedregs_num) > 0)
 199                 M_SUB_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize - savedregs_num);
 200
 201         /* take arguments out of register or stack frame */
 202
 203         md = m->parseddesc;
 204         for (i = 0, len = 0; i < md->paramcount; i++) {
 205                 s1 = md->params[i].regoff;
 206                 t = md->paramtypes[i].type;
 207
 208                 varindex = jd->local_map[len * 5 + t];
 209
 210                 len += (IS_2_WORD_TYPE(t)) ? 2 : 1;          /* 2 word type arguments */
 211
 212                 if (varindex == UNUSED)
 213                         continue;
 214
 215                 var = VAR(varindex);
 216
 217                 /* ATTENTION: we use interger registers for all arguments (even float) */
 218 #if !defined(ENABLE_SOFTFLOAT)
 219                 if (IS_INT_LNG_TYPE(t)) {                    /* integer args          */
 220 #endif
 221                         if (!md->params[i].inmemory) {           /* register arguments    */
 222                                 s2 = ARGUMENT_REGS(t, s1);           /* get argument register */
 223                                 if (!(var->flags & INMEMORY)) {      /* reg arg -> register   */
 224                                         if (GET_LOW_REG(var->vv.regoff) == REG_SPLIT || GET_HIGH_REG(var->vv.regoff) == REG_SPLIT) {
 225                                                 /* TODO: remove this!!! */
 226                                                 dolog("SPLIT in local var: %x>%x (%s.%s)", s2, var->vv.regoff, m->class->name->text, m->name->text);
 227                                                 assert(s2 == var->vv.regoff);
 228                                         }
 229                                         s3 = var->vv.regoff;
 230                                         SPLIT_OPEN(t, s2, REG_ITMP1);
 231                                         SPLIT_LOAD(t, s2, cd->stackframesize);
 232                                         SPLIT_OPEN(t, s3, REG_ITMP1);
 233
 234                                         if (IS_2_WORD_TYPE(t))
 235                                                 M_LNGMOVE(s2, s3);
 236                                         else
 237                                                 M_INTMOVE(s2, s3);
 238
 239                                         SPLIT_STORE_AND_CLOSE(t, s3, cd->stackframesize);
 240                                 }
 241                                 else {                               /* reg arg -> spilled    */
 242                                         SPLIT_OPEN(t, s2, REG_ITMP1);
 243                                         SPLIT_LOAD(t, s2, cd->stackframesize);
 244
 245                                         if (IS_2_WORD_TYPE(t))
 246                                                 M_LST(s2, REG_SP, var->vv.regoff * 4);
 247                                         else
 248                                                 M_IST(s2, REG_SP, var->vv.regoff * 4);
 249                                         /* no SPLIT_CLOSE here because arg is fully spilled now */
 250                                 }
 251                         }
 252                         else {                                   /* stack arguments       */
 253                                 if (!(var->flags & INMEMORY)) {      /* stack arg -> register */
 254                                         if (IS_2_WORD_TYPE(t))
 255                                                 M_LLD(var->vv.regoff, REG_SP, (cd->stackframesize + s1) * 4);
 256                                         else
 257                                                 M_ILD(var->vv.regoff, REG_SP, (cd->stackframesize + s1) * 4);
 258                                 }
 259                                 else {                               /* stack arg -> spilled  */
 260                                         /* Reuse Memory Position on Caller Stack */
 261                                         var->vv.regoff = cd->stackframesize + s1;
 262                                 }
 263                         }
 264 #if !defined(ENABLE_SOFTFLOAT)
 265                 } else {                                     /* floating args         */
 266                         if (!md->params[i].inmemory) {           /* register arguments    */
 267                                 s2 = ARGUMENT_REGS(t, s1);           /* get argument register */
 268                                 if (!(var->flags & INMEMORY)) {      /* reg arg -> register   */
 269                                         SPLIT_OPEN(t, s2, REG_ITMP1);
 270                                         SPLIT_LOAD(t, s2, cd->stackframesize);
 271                                         M_CAST_INT_TO_FLT_TYPED(t, s2, var->vv.regoff);
 272                                 }
 273                                 else {                               /* reg arg -> spilled    */
 274                                         SPLIT_OPEN(t, s2, REG_ITMP1);
 275                                         SPLIT_LOAD(t, s2, cd->stackframesize);
 276
 277                                         if (IS_2_WORD_TYPE(t))
 278                                                 M_LST(s2, REG_SP, var->vv.regoff * 4);
 279                                         else
 280                                                 M_IST(s2, REG_SP, var->vv.regoff * 4);
 281                                         /* no SPLIT_CLOSE here because arg is fully spilled now */
 282                                 }
 283                         }
 284                         else {                                   /* stack arguments       */
 285                                 if (!(var->flags & INMEMORY)) {      /* stack arg -> register */
 286                                         if (IS_2_WORD_TYPE(t))
 287                                                 M_DLD(var->vv.regoff, REG_SP, (cd->stackframesize + s1) * 4);
 288                                         else
 289                                                 M_FLD(var->vv.regoff, REG_SP, (cd->stackframesize + s1) * 4);
 290                                 }
 291                                 else {                               /* stack arg -> spilled  */
 292                                         /* Reuse Memory Position on Caller Stack */
 293                                         var->vv.regoff = cd->stackframesize + s1;
 294                                 }
 295                         }
 296                 }
 297 #endif /* !defined(ENABLE_SOFTFLOAT) */
 298         }
 299
 300 #if defined(ENABLE_THREADS)
 301         /* call monitorenter function */
 302
 303         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
 304                 /* stack offset for monitor argument */
 305
 306                 s1 = rd->memuse;
 307
 308 # if !defined(NDEBUG)
 309                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 310                         M_STMFD(BITMASK_ARGS, REG_SP);
 311                         s1 += 4;
 312                 }
 313 # endif
 314
 315                 /* get the correct lock object */
 316
 317                 if (m->flags & ACC_STATIC) {
 318                         disp = dseg_add_address(cd, &m->class->object.header);
 319                         M_DSEG_LOAD(REG_A0, disp);
 320                 }
 321                 else {
 322                         emit_nullpointer_check_force(cd, iptr, REG_A0);
 323                 }
 324
 325                 M_STR(REG_A0, REG_SP, s1 * 4);
 326                 disp = dseg_add_functionptr(cd, LOCK_monitor_enter);
 327                 M_DSEG_BRANCH(disp);
 328                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
 329                 M_RECOMPUTE_PV(s1);
 330
 331 # if !defined(NDEBUG)
 332                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
 333                         M_LDMFD(BITMASK_ARGS, REG_SP);
 334 # endif
 335         }
 336 #endif
 337
 338 #if !defined(NDEBUG)
 339         /* call trace function */
 340
 341         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
 342                 emit_verbosecall_enter(jd);
 343 #endif
 344
 345         /* end of header generation */
 346
 347         /* SECTION: ICMD Code Generation */
 348         /* for all basic blocks */
 349
 350         for (bptr = jd->basicblocks; bptr != NULL; bptr = bptr->next) {
 351
 352                 bptr->mpc = (s4) (cd->mcodeptr - cd->mcodebase);
 353
 354                 /* is this basic block reached? */
 355
 356                 if (bptr->flags < BBREACHED)
 357                         continue;
 358
 359                 /* branch resolving */
 360
 361                 codegen_resolve_branchrefs(cd, bptr);
 362
 363                 /* copy interface registers to their destination */
 364
 365                 len = bptr->indepth;
 366
 367                 MCODECHECK(64+len);
 368
 369 #if defined(ENABLE_LSRA)
 370                 if (opt_lsra) {
 371                 while (len) {
 372                         len--;
 373                         var = VAR(bptr->invars[len]);
 374                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 375                                 if (!(var->flags & INMEMORY))
 376                                         d= var->vv.regoff;
 377                                 else
 378                                         d=REG_ITMP1;
 379                                 M_INTMOVE(REG_ITMP1, d);
 380                                 emit_store(jd, NULL, var, d);
 381                         }
 382                 }
 383                 } else {
 384 #endif
 385                 while (len) {
 386                         len--;
 387                         var = VAR(bptr->invars[len]);
 388
 389                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 390                                 d = codegen_reg_of_var(0, var, REG_ITMP1);
 391                                 M_INTMOVE(REG_ITMP1, d);
 392                                 emit_store(jd, NULL, var, d);
 393                         }
 394                         else {
 395                                 assert((var->flags & INOUT));
 396                         }
 397                 }
 398 #if defined(ENABLE_LSRA)
 399                 }
 400 #endif
 401
 402                 /* for all instructions */
 403                 len = bptr->icount;
 404                 currentline = 0;
 405                 for (iptr = bptr->iinstr; len > 0; len--, iptr++) {
 406
 407                         /* add line number */
 408                         if (iptr->line != currentline) {
 409                                 dseg_addlinenumber(cd, iptr->line);
 410                                 currentline = iptr->line;
 411                         }
 412
 413                         MCODECHECK(64);   /* an instruction usually needs < 64 words      */
 414
 415                         /* the big switch */
 416                         switch (iptr->opc) {
 417                 case ICMD_NOP:        /* ... ==> ...                                  */
 418                         break;
 419
 420         /* constant operations ************************************************/
 421
 422                 case ICMD_ICONST:     /* ...  ==> ..., constant                       */
 423
 424                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 425                         ICONST(d, iptr->sx.val.i);
 426                         emit_store_dst(jd, iptr, d);
 427                         break;
 428
 429                 case ICMD_ACONST:     /* ... ==> ..., constant                        */
 430
 431                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 432                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
 433                                 disp = dseg_add_unique_address(cd, NULL);
 434
 435                                 codegen_addpatchref(cd, PATCHER_aconst,
 436                                                     iptr->sx.val.c.ref,
 437                                                                         disp);
 438
 439                                 if (opt_showdisassemble)
 440                                         M_NOP;
 441
 442                                 M_DSEG_LOAD(d, disp);
 443                         }
 444                         else {
 445                                 ICONST(d, (u4) iptr->sx.val.anyptr);
 446                         }
 447                         emit_store_dst(jd, iptr, d);
 448                         break;
 449
 450                 case ICMD_LCONST:     /* ...  ==> ..., constant                       */
 451
 452                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 453                         LCONST(d, iptr->sx.val.l);
 454                         emit_store_dst(jd, iptr, d);
 455                         break;
 456
 457                 case ICMD_FCONST:     /* ...  ==> ..., constant                       */
 458
 459 #if defined(ENABLE_SOFTFLOAT)
 460                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 461                         ICONST(d, iptr->sx.val.i);
 462                         emit_store_dst(jd, iptr, d);
 463 #else
 464                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 465                         FCONST(d, iptr->sx.val.f);
 466                         emit_store_dst(jd, iptr, d);
 467 #endif
 468                         break;
 469
 470                 case ICMD_DCONST:     /* ...  ==> ..., constant                       */
 471
 472 #if defined(ENABLE_SOFTFLOAT)
 473                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 474                         LCONST(d, iptr->sx.val.l);
 475                         emit_store_dst(jd, iptr, d);
 476 #else
 477                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 478                         DCONST(d, iptr->sx.val.d);
 479                         emit_store_dst(jd, iptr, d);
 480 #endif
 481                         break;
 482
 483
 484                 /* load/store/copy/move operations ************************************/
 485
 486                 case ICMD_ILOAD:      /* ...  ==> ..., content of local variable      */
 487                 case ICMD_ALOAD:      /* op1 = local variable                         */
 488                 case ICMD_FLOAD:
 489                 case ICMD_LLOAD:
 490                 case ICMD_DLOAD:
 491                 case ICMD_ISTORE:     /* ..., value  ==> ...                          */
 492                 case ICMD_FSTORE:
 493                 case ICMD_LSTORE:
 494                 case ICMD_DSTORE:
 495                 case ICMD_COPY:
 496                 case ICMD_MOVE:
 497
 498                         emit_copy(jd, iptr, VAROP(iptr->s1), VAROP(iptr->dst));
 499                         break;
 500
 501                 case ICMD_ASTORE:
 502                         if (!(iptr->flags.bits & INS_FLAG_RETADDR))
 503                                 emit_copy(jd, iptr, VAROP(iptr->s1), VAROP(iptr->dst));
 504                         break;
 505
 506                 /* pop operations *****************************************************/
 507
 508                 /* attention: double and longs are only one entry in CACAO ICMDs      */
 509
 510                 case ICMD_POP:        /* ..., value  ==> ...                          */
 511                 case ICMD_POP2:       /* ..., value, value  ==> ...                   */
 512
 513                         break;
 514
 515
 516                 /* integer operations *************************************************/
 517
 518                 case ICMD_INT2BYTE:   /* ..., value  ==> ..., value                   */
 519
 520                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 521                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 522                         M_MOV(d, REG_LSL(s1, 24));
 523                         M_MOV(d, REG_ASR(d, 24));
 524                         emit_store_dst(jd, iptr, d);
 525                         break;
 526
 527                 case ICMD_INT2CHAR:   /* ..., value  ==> ..., value                   */
 528
 529                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 530                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 531                         M_MOV(d, REG_LSL(s1, 16));
 532                         M_MOV(d, REG_LSR(d, 16)); /* ATTENTION: char is unsigned */
 533                         emit_store_dst(jd, iptr, d);
 534                         break;
 535
 536                 case ICMD_INT2SHORT:  /* ..., value  ==> ..., value                   */
 537
 538                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 539                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 540                         M_MOV(d, REG_LSL(s1, 16));
 541                         M_MOV(d, REG_ASR(d, 16));
 542                         emit_store_dst(jd, iptr, d);
 543                         break;
 544
 545                 case ICMD_I2L:        /* ..., value  ==> ..., value                   */
 546
 547                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 548                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 549                         M_INTMOVE(s1, GET_LOW_REG(d));
 550                         M_MOV(GET_HIGH_REG(d), REG_ASR(s1, 31));
 551                         emit_store_dst(jd, iptr, d);
 552                         break;
 553
 554                 case ICMD_L2I:        /* ..., value  ==> ..., value                   */
 555
 556                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 557                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 558                         M_INTMOVE(s1, d);
 559                         emit_store_dst(jd, iptr, d);
 560                         break;
 561
 562                 case ICMD_INEG:       /* ..., value  ==> ..., - value                 */
 563
 564                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 565                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 566                         M_RSB_IMM(d, s1, 0);
 567                         emit_store_dst(jd, iptr, d);
 568                         break;
 569
 570                 case ICMD_LNEG:       /* ..., value  ==> ..., - value                 */
 571
 572                         s1 = emit_load_s1(jd, iptr, REG_ITMP12_PACKED);
 573                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 574                         M_RSB_IMMS(GET_LOW_REG(d), GET_LOW_REG(s1), 0);
 575                         M_RSC_IMM(GET_HIGH_REG(d), GET_HIGH_REG(s1), 0);
 576                         emit_store_dst(jd, iptr, d);
 577                         break;
 578
 579                 case ICMD_IADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 580
 581                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 582                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 583                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 584                         M_ADD(d, s1, s2);
 585                         emit_store_dst(jd, iptr, d);
 586                         break;
 587
 588                 case ICMD_LADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 589
 590                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 591                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 592                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 593                         M_ADD_S(GET_LOW_REG(d), s1, s2);
 594                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 595                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 596                         M_ADC(GET_HIGH_REG(d), s1, s2);
 597                         emit_store_dst(jd, iptr, d);
 598                         break;
 599
 600                 case ICMD_IADDCONST:
 601                 case ICMD_IINC:
 602
 603                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 604                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 605
 606                         if (IS_IMM(iptr->sx.val.i)) {
 607                                 M_ADD_IMM(d, s1, iptr->sx.val.i);
 608                         } else if (IS_IMM(-iptr->sx.val.i)) {
 609                                 M_SUB_IMM(d, s1, (-iptr->sx.val.i));
 610                         } else {
 611                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 612                                 M_ADD(d, s1, REG_ITMP3);
 613                         }
 614
 615                         emit_store_dst(jd, iptr, d);
 616                         break;
 617
 618                 case ICMD_LADDCONST:  /* ..., value  ==> ..., value + constant        */
 619                                       /* sx.val.l = constant                          */
 620
 621                         s3 = iptr->sx.val.l & 0xffffffff;
 622                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 623                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 624                         if (IS_IMM(s3))
 625                                 M_ADD_IMMS(GET_LOW_REG(d), s1, s3);
 626                         else {
 627                                 ICONST(REG_ITMP3, s3);
 628                                 M_ADD_S(GET_LOW_REG(d), s1, REG_ITMP3);
 629                         }
 630                         s3 = iptr->sx.val.l >> 32;
 631                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP2);
 632                         if (IS_IMM(s3))
 633                                 M_ADC_IMM(GET_HIGH_REG(d), s1, s3);
 634                         else {
 635                                 ICONST(REG_ITMP3, s3);
 636                                 M_ADC(GET_HIGH_REG(d), s1, REG_ITMP3);
 637                         }
 638                         emit_store_dst(jd, iptr, d);
 639                         break;
 640
 641                 case ICMD_ISUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 642
 643                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 644                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 645                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 646                         M_SUB(d, s1, s2);
 647                         emit_store_dst(jd, iptr, d);
 648                         break;
 649
 650                 case ICMD_LSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 651
 652                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 653                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 654                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 655                         M_SUB_S(GET_LOW_REG(d), s1, s2);
 656                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 657                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 658                         M_SBC(GET_HIGH_REG(d), s1, s2);
 659                         emit_store_dst(jd, iptr, d);
 660                         break;
 661
 662                 case ICMD_ISUBCONST:  /* ..., value  ==> ..., value + constant        */
 663                                       /* sx.val.i = constant                          */
 664
 665                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 666                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 667                         if (IS_IMM(iptr->sx.val.i))
 668                                 M_SUB_IMM(d, s1, iptr->sx.val.i);
 669                         else {
 670                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 671                                 M_SUB(d, s1, REG_ITMP3);
 672                         }
 673                         emit_store_dst(jd, iptr, d);
 674                         break;
 675
 676                 case ICMD_LSUBCONST:  /* ..., value  ==> ..., value - constant        */
 677                                       /* sx.val.l = constant                          */
 678
 679                         s3 = iptr->sx.val.l & 0xffffffff;
 680                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 681                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 682                         if (IS_IMM(s3))
 683                                 M_SUB_IMMS(GET_LOW_REG(d), s1, s3);
 684                         else {
 685                                 ICONST(REG_ITMP3, s3);
 686                                 M_SUB_S(GET_LOW_REG(d), s1, REG_ITMP3);
 687                         }
 688                         s3 = iptr->sx.val.l >> 32;
 689                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP2);
 690                         if (IS_IMM(s3))
 691                                 M_SBC_IMM(GET_HIGH_REG(d), s1, s3);
 692                         else {
 693                                 ICONST(REG_ITMP3, s3);
 694                                 M_SBC(GET_HIGH_REG(d), s1, REG_ITMP3);
 695                         }
 696                         emit_store_dst(jd, iptr, d);
 697                         break;
 698
 699                 case ICMD_IMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 700
 701                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 702                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 703                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 704                         M_MUL(d, s1, s2);
 705                         emit_store_dst(jd, iptr, d);
 706                         break;
 707
 708                 case ICMD_IDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 709                 case ICMD_IREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 710
 711                         s1 = emit_load_s1(jd, iptr, REG_A0);
 712                         s2 = emit_load_s2(jd, iptr, REG_A1);
 713                         emit_arithmetic_check(cd, iptr, s2);
 714
 715                         /* move arguments into argument registers */
 716                         M_INTMOVE(s1, REG_A0);
 717                         M_INTMOVE(s2, REG_A1);
 718
 719                         /* call builtin function */
 720                         bte = iptr->sx.s23.s3.bte;
 721                         disp = dseg_add_functionptr(cd, bte->fp);
 722                         M_DSEG_BRANCH(disp);
 723
 724                         /* recompute pv */
 725                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
 726                         M_RECOMPUTE_PV(s1);
 727
 728                         /* move result into destination register */
 729                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
 730                         M_INTMOVE(REG_RESULT, d);
 731                         emit_store_dst(jd, iptr, d);
 732                         break;
 733
 734                 case ICMD_LDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 735                 case ICMD_LREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 736
 737                         /* move arguments into argument registers */
 738
 739                         s1 = emit_load_s1(jd, iptr, REG_A0_A1_PACKED);
 740                         s2 = emit_load_s2(jd, iptr, REG_A2_A3_PACKED);
 741                         /* XXX TODO: only do this if arithmetic check is really done! */
 742                         M_ORR(GET_HIGH_REG(s2), GET_LOW_REG(s2), REG_ITMP3);
 743                         emit_arithmetic_check(cd, iptr, REG_ITMP3);
 744
 745                         M_LNGMOVE(s1, REG_A0_A1_PACKED);
 746                         M_LNGMOVE(s2, REG_A2_A3_PACKED);
 747
 748                         /* call builtin function */
 749                         bte = iptr->sx.s23.s3.bte;
 750                         disp = dseg_add_functionptr(cd, bte->fp);
 751                         M_DSEG_BRANCH(disp);
 752
 753                         /* recompute pv */
 754                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
 755                         M_RECOMPUTE_PV(s1);
 756
 757                         /* move result into destination register */
 758                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
 759                         M_LNGMOVE(REG_RESULT_PACKED, d);
 760                         emit_store_dst(jd, iptr, d);
 761                         break;
 762
 763                 case ICMD_IMULPOW2:   /* ..., value  ==> ..., value * (2 ^ constant)  */
 764                                       /* sx.val.i = constant                          */
 765
 766                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 767                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 768                         M_MOV(d, REG_LSL(s1, iptr->sx.val.i));
 769                         emit_store_dst(jd, iptr, d);
 770                         break;
 771
 772                 case ICMD_IDIVPOW2:   /* ..., value  ==> ..., value / (2 ^ constant)  */
 773                                       /* sx.val.i = constant                          */
 774
 775                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 776                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 777                         /* this rounds towards 0 as java likes it */
 778                         M_MOV(REG_ITMP3, REG_ASR(s1, 31));
 779                         M_ADD(REG_ITMP3, s1, REG_LSR(REG_ITMP3, 32 - iptr->sx.val.i));
 780                         M_MOV(d, REG_ASR(REG_ITMP3, iptr->sx.val.i));
 781                         /* this rounds towards nearest, not java style */
 782                         /*M_MOV_S(d, REG_ASR(s1, iptr->sx.val.i));
 783                         M_ADCMI_IMM(d, d, 0);*/
 784                         emit_store_dst(jd, iptr, d);
 785                         break;
 786
 787                 case ICMD_IREMPOW2:   /* ..., value  ==> ..., value % constant        */
 788                                       /* sx.val.i = constant [ (2 ^ x) - 1 ]          */
 789
 790                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 791                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 792                         M_MOV_S(REG_ITMP1, s1);
 793                         M_RSBMI_IMM(REG_ITMP1, REG_ITMP1, 0);
 794                         if (IS_IMM(iptr->sx.val.i))
 795                                 M_AND_IMM(REG_ITMP1, iptr->sx.val.i, d);
 796                         else {
 797                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 798                                 M_AND(REG_ITMP1, REG_ITMP3, d);
 799                         }
 800                         M_RSBMI_IMM(d, d, 0);
 801                         emit_store_dst(jd, iptr, d);
 802                         break;
 803
 804                 case ICMD_ISHL:       /* ..., val1, val2  ==> ..., val1 << val2       */
 805
 806                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 807                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 808                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 809                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 810                         M_MOV(d, REG_LSL_REG(s1, REG_ITMP2));
 811                         emit_store_dst(jd, iptr, d);
 812                         break;
 813
 814                 case ICMD_ISHR:       /* ..., val1, val2  ==> ..., val1 >> val2       */
 815
 816                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 817                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 818                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 819                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 820                         M_MOV(d, REG_ASR_REG(s1, REG_ITMP2));
 821                         emit_store_dst(jd, iptr, d);
 822                         break;
 823
 824                 case ICMD_IUSHR:      /* ..., val1, val2  ==> ..., val1 >>> val2      */
 825
 826                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 827                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 828                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 829                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 830                         M_MOV(d, REG_LSR_REG(s1, REG_ITMP2));
 831                         emit_store_dst(jd, iptr, d);
 832                         break;
 833
 834                 case ICMD_ISHLCONST:  /* ..., value  ==> ..., value << constant       */
 835                                       /* sx.val.i = constant                          */
 836
 837                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 838                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 839                         M_MOV(d, REG_LSL(s1, iptr->sx.val.i & 0x1f));
 840                         emit_store_dst(jd, iptr, d);
 841                         break;
 842
 843                 case ICMD_ISHRCONST:  /* ..., value  ==> ..., value >> constant       */
 844                                       /* sx.val.i = constant                          */
 845
 846                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 847                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 848                         /* we need to check for zero here because arm interprets it as SHR by 32 */
 849                         if ((iptr->sx.val.i & 0x1f) == 0) {
 850                                 M_INTMOVE(s1, d);
 851                         } else {
 852                                 M_MOV(d, REG_ASR(s1, iptr->sx.val.i & 0x1f));
 853                         }
 854                         emit_store_dst(jd, iptr, d);
 855                         break;
 856
 857                 case ICMD_IUSHRCONST: /* ..., value  ==> ..., value >>> constant      */
 858                                       /* sx.val.i = constant                          */
 859
 860                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 861                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 862                         /* we need to check for zero here because arm interprets it as SHR by 32 */
 863                         if ((iptr->sx.val.i & 0x1f) == 0)
 864                                 M_INTMOVE(s1, d);
 865                         else
 866                                 M_MOV(d, REG_LSR(s1, iptr->sx.val.i & 0x1f));
 867                         emit_store_dst(jd, iptr, d);
 868                         break;
 869
 870                 case ICMD_IAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 871
 872                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 873                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 874                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 875                         M_AND(s1, s2, d);
 876                         emit_store_dst(jd, iptr, d);
 877                         break;
 878
 879                 case ICMD_LAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 880
 881                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 882                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 883                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 884                         M_AND(s1, s2, GET_LOW_REG(d));
 885                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 886                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 887                         M_AND(s1, s2, GET_HIGH_REG(d));
 888                         emit_store_dst(jd, iptr, d);
 889                         break;
 890
 891                 case ICMD_IOR:        /* ..., val1, val2  ==> ..., val1 | val2        */
 892
 893                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 894                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 895                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 896                         M_ORR(s1, s2, d);
 897                         emit_store_dst(jd, iptr, d);
 898                         break;
 899
 900                 case ICMD_LOR:       /* ..., val1, val2  ==> ..., val1 | val2        */
 901
 902                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 903                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 904                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 905                         M_ORR(s1, s2, GET_LOW_REG(d));
 906                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 907                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 908                         M_ORR(s1, s2, GET_HIGH_REG(d));
 909                         emit_store_dst(jd, iptr, d);
 910                         break;
 911
 912                 case ICMD_IXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
 913
 914                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 915                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 916                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 917                         M_EOR(s1, s2, d);
 918                         emit_store_dst(jd, iptr, d);
 919                         break;
 920
 921                 case ICMD_LXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
 922
 923                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 924                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 925                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 926                         M_EOR(s1, s2, GET_LOW_REG(d));
 927                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 928                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 929                         M_EOR(s1, s2, GET_HIGH_REG(d));
 930                         emit_store_dst(jd, iptr, d);
 931                         break;
 932
 933
 934         /* floating operations ************************************************/
 935
 936 #if !defined(ENABLE_SOFTFLOAT)
 937
 938                 case ICMD_FNEG:       /* ..., value  ==> ..., - value                 */
 939
 940                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 941                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 942                         M_MNFS(d, s1);
 943                         emit_store_dst(jd, iptr, d);
 944                         break;
 945
 946                 case ICMD_FADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 947
 948                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 949                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 950                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 951                         M_ADFS(d, s1, s2);
 952                         emit_store_dst(jd, iptr, d);
 953                         break;
 954
 955                 case ICMD_FSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 956
 957                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 958                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 959                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 960                         M_SUFS(d, s1, s2);
 961                         emit_store_dst(jd, iptr, d);
 962                         break;
 963
 964                 case ICMD_FMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 965
 966                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 967                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 968                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 969                         M_MUFS(d, s1, s2);
 970                         emit_store_dst(jd, iptr, d);
 971                         break;
 972
 973                 case ICMD_FDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 974                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 975                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 976                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 977                         M_DVFS(d, s1, s2);
 978                         emit_store_dst(jd, iptr, d);
 979                         break;
 980
 981                 /* ATTENTION: Jave does not want IEEE behaviour in FREM, do
 982                    not use this */
 983
 984                 case ICMD_FREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 985
 986                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 987                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 988                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 989                         M_RMFS(d, s1, s2);
 990                         emit_store_dst(jd, iptr, d);
 991                         break;
 992
 993                 case ICMD_DNEG:       /* ..., value  ==> ..., - value                 */
 994
 995                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 996                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 997                         M_MNFD(d, s1);
 998                         emit_store_dst(jd, iptr, d);
 999                         break;
1000
1001                 case ICMD_DADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
1002
1003                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1004                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1005                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1006                         M_ADFD(d, s1, s2);
1007                         emit_store_dst(jd, iptr, d);
1008                         break;
1009
1010                 case ICMD_DSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
1011
1012                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1013                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1014                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1015                         M_SUFD(d, s1, s2);
1016                         emit_store_dst(jd, iptr, d);
1017                         break;
1018
1019                 case ICMD_DMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1020
1021                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1022                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1023                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1024                         M_MUFD(d, s1, s2);
1025                         emit_store_dst(jd, iptr, d);
1026                         break;
1027
1028                 case ICMD_DDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1029
1030                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1031                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1032                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1033                         M_DVFD(d, s1, s2);
1034                         emit_store_dst(jd, iptr, d);
1035                         break;
1036
1037                 /* ATTENTION: Jave does not want IEEE behaviour in DREM, do
1038                    not use this */
1039
1040                 case ICMD_DREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
1041
1042                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1043                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1044                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1045                         M_RMFD(d, s1, s2);
1046                         emit_store_dst(jd, iptr, d);
1047                         break;
1048
1049                 case ICMD_I2F:       /* ..., value  ==> ..., (float) value            */
1050
1051                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1052                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1053                         M_FLTS(d, s1);
1054                         emit_store_dst(jd, iptr, d);
1055                         break;
1056
1057                 case ICMD_I2D:       /* ..., value  ==> ..., (double) value           */
1058
1059                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1060                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1061                         M_FLTD(d, s1);
1062                         emit_store_dst(jd, iptr, d);
1063                         break;
1064
1065                 case ICMD_F2I:       /* ..., value  ==> ..., (int) value              */
1066
1067                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1068                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1069                         /* this uses round towards zero, as Java likes it */
1070                         M_FIX(d, s1);
1071                         /* this checks for NaN; to return zero as Java likes it */
1072                         M_CMF(s1, 0x8);
1073                         M_MOVVS_IMM(0, d);
1074                         emit_store_dst(jd, iptr, d);
1075                         break;
1076
1077                 case ICMD_D2I:       /* ..., value  ==> ..., (int) value              */
1078
1079                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1080                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1081                         /* this uses round towards zero, as Java likes it */
1082                         M_FIX(d, s1);
1083                         /* this checks for NaN; to return zero as Java likes it */
1084                         M_CMF(s1, 0x8);
1085                         M_MOVVS_IMM(0, d);
1086                         emit_store_dst(jd, iptr, d);
1087                         break;
1088
1089                 case ICMD_D2F:       /* ..., value  ==> ..., (float) value            */
1090
1091                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1092                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1093                         M_MVFS(d,s1);
1094                         emit_store_dst(jd, iptr, d);
1095                         break;
1096
1097                 case ICMD_F2D:       /* ..., value  ==> ..., (double) value           */
1098
1099                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1100                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1101                         M_MVFD(d,s1);
1102                         emit_store_dst(jd, iptr, d);
1103                         break;
1104
1105                 case ICMD_FCMPG:      /* ..., val1, val2  ==> ..., val1 fcmpg val2    */
1106
1107                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1108                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1109                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1110                         M_CMF(s2, s1);
1111                         M_MOV_IMM(d, 0);
1112                         M_SUBGT_IMM(d, d, 1);
1113                         M_ADDLT_IMM(d, d, 1);
1114                         emit_store_dst(jd, iptr, d);
1115                         break;
1116
1117                 case ICMD_DCMPG:      /* ..., val1, val2  ==> ..., val1 dcmpg val2    */
1118
1119                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1120                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1121                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1122                         M_CMF(s2, s1);
1123                         M_MOV_IMM(d, 0);
1124                         M_SUBGT_IMM(d, d, 1);
1125                         M_ADDLT_IMM(d, d, 1);
1126                         emit_store_dst(jd, iptr, d);
1127                         break;
1128
1129                 case ICMD_FCMPL:      /* ..., val1, val2  ==> ..., val1 fcmpl val2    */
1130
1131                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1132                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1133                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1134                         M_CMF(s1, s2);
1135                         M_MOV_IMM(d, 0);
1136                         M_SUBLT_IMM(d, d, 1);
1137                         M_ADDGT_IMM(d, d, 1);
1138                         emit_store_dst(jd, iptr, d);
1139                         break;
1140
1141                 case ICMD_DCMPL:      /* ..., val1, val2  ==> ..., val1 dcmpl val2    */
1142
1143                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1144                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1145                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1146                         M_CMF(s1, s2);
1147                         M_MOV_IMM(d, 0);
1148                         M_SUBLT_IMM(d, d, 1);
1149                         M_ADDGT_IMM(d, d, 1);
1150                         emit_store_dst(jd, iptr, d);
1151                         break;
1152
1153 #endif /* !defined(ENABLE_SOFTFLOAT) */
1154
1155
1156                 /* memory operations **************************************************/
1157
1158                 case ICMD_ARRAYLENGTH: /* ..., arrayref  ==> ..., length              */
1159
1160                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1161                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1162                         /* implicit null-pointer check */
1163                         M_ILD_INTERN(d, s1, OFFSET(java_arrayheader, size));
1164                         emit_store_dst(jd, iptr, d);
1165                         break;
1166
1167                 case ICMD_BALOAD:     /* ..., arrayref, index  ==> ..., value         */
1168
1169                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1170                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1171                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1172                         /* implicit null-pointer check */
1173                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1174                         M_ADD(REG_ITMP1, s1, s2); /* REG_ITMP1 = s1 + 1 * s2 */
1175                         M_LDRSB(d, REG_ITMP1, OFFSET(java_bytearray, data[0]));
1176                         emit_store_dst(jd, iptr, d);
1177                         break;
1178
1179                 case ICMD_CALOAD:     /* ..., arrayref, index  ==> ..., value         */
1180
1181                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1182                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1183                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1184                         /* implicit null-pointer check */
1185                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1186                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1187                         M_LDRH(d, REG_ITMP1, OFFSET(java_chararray, data[0]));
1188                         emit_store_dst(jd, iptr, d);
1189                         break;
1190
1191                 case ICMD_SALOAD:     /* ..., arrayref, index  ==> ..., value         */
1192
1193                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1194                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1195                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1196                         /* implicit null-pointer check */
1197                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1198                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1199                         M_LDRSH(d, REG_ITMP1, OFFSET(java_shortarray, data[0]));
1200                         emit_store_dst(jd, iptr, d);
1201                         break;
1202
1203                 case ICMD_IALOAD:     /* ..., arrayref, index  ==> ..., value         */
1204
1205                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1206                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1207                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1208                         /* implicit null-pointer check */
1209                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1210                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1211                         M_ILD_INTERN(d, REG_ITMP1, OFFSET(java_intarray, data[0]));
1212                         emit_store_dst(jd, iptr, d);
1213                         break;
1214
1215                 case ICMD_LALOAD:     /* ..., arrayref, index  ==> ..., value         */
1216
1217                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1218                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1219                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1220                         /* implicit null-pointer check */
1221                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1222                         M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1223                         M_LLD_INTERN(d, REG_ITMP3, OFFSET(java_longarray, data[0]));
1224                         emit_store_dst(jd, iptr, d);
1225                         break;
1226
1227                 case ICMD_FALOAD:     /* ..., arrayref, index  ==> ..., value         */
1228
1229                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1230                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1231                         /* implicit null-pointer check */
1232                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1233                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1234 #if !defined(ENABLE_SOFTFLOAT)
1235                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1236                         M_FLD_INTERN(d, REG_ITMP1, OFFSET(java_floatarray, data[0]));
1237 #else
1238                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1239                         M_ILD_INTERN(d, REG_ITMP1, OFFSET(java_floatarray, data[0]));
1240 #endif
1241                         emit_store_dst(jd, iptr, d);
1242                         break;
1243
1244                 case ICMD_DALOAD:     /* ..., arrayref, index  ==> ..., value         */
1245
1246                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1247                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1248                         /* implicit null-pointer check */
1249                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1250                         M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1251 #if !defined(ENABLE_SOFTFLOAT)
1252                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1253                         M_DLD_INTERN(d, REG_ITMP3, OFFSET(java_doublearray, data[0]));
1254 #else
1255                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1256                         M_LLD_INTERN(d, REG_ITMP3, OFFSET(java_doublearray, data[0]));
1257 #endif
1258                         emit_store_dst(jd, iptr, d);
1259                         break;
1260
1261                 case ICMD_AALOAD:     /* ..., arrayref, index  ==> ..., value         */
1262
1263                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1264                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1265                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1266                         /* implicit null-pointer check */
1267                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1268                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1269                         M_LDR_INTERN(d, REG_ITMP1, OFFSET(java_objectarray, data[0]));
1270                         emit_store_dst(jd, iptr, d);
1271                         break;
1272
1273                 case ICMD_BASTORE:    /* ..., arrayref, index, value  ==> ...         */
1274
1275                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1276                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1277                         /* implicit null-pointer check */
1278                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1279                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1280                         M_ADD(REG_ITMP1, s1, s2); /* REG_ITMP1 = s1 + 1 * s2 */
1281                         M_STRB(s3, REG_ITMP1, OFFSET(java_bytearray, data[0]));
1282                         break;
1283
1284                 case ICMD_CASTORE:    /* ..., arrayref, index, value  ==> ...         */
1285
1286                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1287                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1288                         /* implicit null-pointer check */
1289                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1290                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1291                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1292                         M_STRH(s3, REG_ITMP1, OFFSET(java_chararray, data[0]));
1293                         break;
1294
1295                 case ICMD_SASTORE:    /* ..., arrayref, index, value  ==> ...         */
1296
1297                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1298                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1299                         /* implicit null-pointer check */
1300                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1301                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1302                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1303                         M_STRH(s3, REG_ITMP1, OFFSET(java_shortarray, data[0]));
1304                         break;
1305
1306                 case ICMD_IASTORE:    /* ..., arrayref, index, value  ==> ...         */
1307
1308                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1309                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1310                         /* implicit null-pointer check */
1311                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1312                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1313                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1314                         M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_intarray, data[0]));
1315                         break;
1316
1317                 case ICMD_LASTORE:    /* ..., arrayref, index, value  ==> ...         */
1318
1319                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1320                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1321                         /* implicit null-pointer check */
1322                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1323                         M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1324                         s3 = emit_load_s3(jd, iptr, REG_ITMP12_PACKED);
1325                         M_LST_INTERN(s3, REG_ITMP3, OFFSET(java_longarray, data[0]));
1326                         break;
1327
1328                 case ICMD_FASTORE:    /* ..., arrayref, index, value  ==> ...         */
1329
1330                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1331                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1332                         /* implicit null-pointer check */
1333                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1334                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1335 #if !defined(ENABLE_SOFTFLOAT)
1336                         s3 = emit_load_s3(jd, iptr, REG_FTMP1);
1337                         M_FST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray, data[0]));
1338 #else
1339                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1340                         M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray, data[0]));
1341 #endif
1342                         break;
1343
1344                 case ICMD_DASTORE:    /* ..., arrayref, index, value  ==> ...         */
1345
1346                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1347                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1348                         /* implicit null-pointer check */
1349                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1350                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 3)); /* REG_ITMP1 = s1 + 8 * s2 */
1351 #if !defined(ENABLE_SOFTFLOAT)
1352                         s3 = emit_load_s3(jd, iptr, REG_FTMP1);
1353                         M_DST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray, data[0]));
1354 #else
1355                         s3 = emit_load_s3(jd, iptr, REG_ITMP23_PACKED);
1356                         M_LST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray, data[0]));
1357 #endif
1358                         break;
1359
1360                 case ICMD_AASTORE:    /* ..., arrayref, index, value  ==> ...         */
1361
1362                         s1 = emit_load_s1(jd, iptr, REG_A0);
1363                         s2 = emit_load_s2(jd, iptr, REG_ITMP1);
1364                         s3 = emit_load_s3(jd, iptr, REG_A1);
1365
1366                         /* implicit null-pointer check */
1367                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1368
1369                         /* move arguments to argument registers */
1370                         M_INTMOVE(s1, REG_A0);
1371                         M_INTMOVE(s3, REG_A1);
1372
1373                         /* call builtin function */
1374                         disp = dseg_add_functionptr(cd, BUILTIN_canstore);
1375                         M_DSEG_BRANCH(disp);
1376
1377                         /* recompute pv */
1378                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
1379                         M_RECOMPUTE_PV(s1);
1380
1381                         /* check resturn value of builtin */
1382                         emit_exception_check(cd, iptr);
1383
1384                         /* finally store address into array */
1385                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1386                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1387                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1388                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1389                         M_STR_INTERN(s3, REG_ITMP1, OFFSET(java_objectarray, data[0]));
1390                         break;
1391
1392                 case ICMD_GETSTATIC:  /* ...  ==> ..., value                          */
1393
1394                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1395                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1396
1397                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1398
1399                                 disp = dseg_add_unique_address(cd, NULL);
1400
1401                                 codegen_addpatchref(cd, PATCHER_get_putstatic, uf, disp);
1402
1403                                 if (opt_showdisassemble)
1404                                         M_NOP;
1405                         }
1406                         else {
1407                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1408
1409                                 fieldtype = fi->type;
1410
1411                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1412                                         codegen_addpatchref(cd, PATCHER_clinit, fi->class, 0);
1413
1414                                         if (opt_showdisassemble)
1415                                                 M_NOP;
1416                                 }
1417
1418                                 disp = dseg_add_address(cd, &(fi->value));
1419                         }
1420
1421                         M_DSEG_LOAD(REG_ITMP3, disp);
1422                         switch (fieldtype) {
1423                         case TYPE_INT:
1424 #if defined(ENABLE_SOFTFLOAT)
1425                         case TYPE_FLT:
1426 #endif
1427                         case TYPE_ADR:
1428                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1429                                 M_ILD_INTERN(d, REG_ITMP3, 0);
1430                                 break;
1431                         case TYPE_LNG:
1432 #if defined(ENABLE_SOFTFLOAT)
1433                         case TYPE_DBL:
1434 #endif
1435                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1436                                 M_LLD_INTERN(d, REG_ITMP3, 0);
1437                                 break;
1438 #if !defined(ENABLE_SOFTFLOAT)
1439                         case TYPE_FLT:
1440                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1441                                 M_FLD_INTERN(d, REG_ITMP3, 0);
1442                                 break;
1443                         case TYPE_DBL:
1444                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1445                                 M_DLD_INTERN(d, REG_ITMP3, 0);
1446                                 break;
1447 #endif
1448                         default:
1449                                 assert(0);
1450                         }
1451                         emit_store_dst(jd, iptr, d);
1452                         break;
1453
1454                 case ICMD_PUTSTATIC:  /* ..., value  ==> ...                          */
1455
1456                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1457                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1458
1459                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1460
1461                                 disp = dseg_add_unique_address(cd, NULL);
1462
1463                                 codegen_addpatchref(cd, PATCHER_get_putstatic, uf, disp);
1464
1465                                 if (opt_showdisassemble)
1466                                         M_NOP;
1467                         }
1468                         else {
1469                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1470
1471                                 fieldtype = fi->type;
1472
1473                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1474                                         codegen_addpatchref(cd, PATCHER_clinit, fi->class, 0);
1475
1476                                         if (opt_showdisassemble)
1477                                                 M_NOP;
1478                                 }
1479
1480                                 disp = dseg_add_address(cd, &(fi->value));
1481                         }
1482
1483                         M_DSEG_LOAD(REG_ITMP3, disp);
1484                         switch (fieldtype) {
1485                         case TYPE_INT:
1486 #if defined(ENABLE_SOFTFLOAT)
1487                         case TYPE_FLT:
1488 #endif
1489                         case TYPE_ADR:
1490                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1491                                 M_IST_INTERN(s1, REG_ITMP3, 0);
1492                                 break;
1493                         case TYPE_LNG:
1494 #if defined(ENABLE_SOFTFLOAT)
1495                         case TYPE_DBL:
1496 #endif
1497                                 s1 = emit_load_s1(jd, iptr, REG_ITMP12_PACKED);
1498                                 M_LST_INTERN(s1, REG_ITMP3, 0);
1499                                 break;
1500 #if !defined(ENABLE_SOFTFLOAT)
1501                         case TYPE_FLT:
1502                                 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1503                                 M_FST_INTERN(s1, REG_ITMP3, 0);
1504                                 break;
1505                         case TYPE_DBL:
1506                                 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1507                                 M_DST_INTERN(s1, REG_ITMP3, 0);
1508                                 break;
1509 #endif
1510                         default:
1511                                 assert(0);
1512                         }
1513                         break;
1514
1515                 case ICMD_GETFIELD:   /* ..., objectref, value  ==> ...               */
1516
1517                         s1 = emit_load_s1(jd, iptr, REG_ITMP3);
1518                         emit_nullpointer_check(cd, iptr, s1);
1519
1520
1521                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1522                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1523
1524                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1525                         }
1526                         else {
1527                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1528
1529                                 fieldtype = fi->type;
1530                                 disp      = fi->offset;
1531                         }
1532
1533 #if !defined(ENABLE_SOFTFLOAT)
1534                         /* HACK: softnull checks on floats */
1535                         if (!INSTRUCTION_MUST_CHECK(iptr) && IS_FLT_DBL_TYPE(fieldtype))
1536                                 emit_nullpointer_check_force(cd, iptr, s1);
1537 #endif
1538
1539                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1540                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1541
1542                                 codegen_addpatchref(cd, PATCHER_get_putfield, uf, 0);
1543
1544                                 if (opt_showdisassemble)
1545                                         M_NOP;
1546
1547                                 disp = 0;
1548                         }
1549
1550                         switch (fieldtype) {
1551                         case TYPE_INT:
1552 #if defined(ENABLE_SOFTFLOAT)
1553                         case TYPE_FLT:
1554 #endif
1555                         case TYPE_ADR:
1556                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1557                                 M_ILD(d, s1, disp);
1558                                 break;
1559                         case TYPE_LNG:
1560 #if defined(ENABLE_SOFTFLOAT)
1561                         case TYPE_DBL:
1562 #endif
1563                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1564                                 M_LLD(d, s1, disp);
1565                                 break;
1566 #if !defined(ENABLE_SOFTFLOAT)
1567                         case TYPE_FLT:
1568                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1569                                 M_FLD(d, s1, disp);
1570                                 break;
1571                         case TYPE_DBL:
1572                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1573                                 M_DLD(d, s1, disp);
1574                                 break;
1575 #endif
1576                         default:
1577                                 assert(0);
1578                         }
1579                         emit_store_dst(jd, iptr, d);
1580                         break;
1581
1582                 case ICMD_PUTFIELD:   /* ..., objectref, value  ==> ...               */
1583
1584                         s1 = emit_load_s1(jd, iptr, REG_ITMP3);
1585                         emit_nullpointer_check(cd, iptr, s1);
1586
1587                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1588                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1589
1590                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1591                         }
1592                         else {
1593                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1594
1595                                 fieldtype = fi->type;
1596                                 disp      = fi->offset;
1597                         }
1598
1599 #if !defined(ENABLE_SOFTFLOAT)
1600                         /* HACK: softnull checks on floats */
1601                         if (!INSTRUCTION_MUST_CHECK(iptr) && IS_FLT_DBL_TYPE(fieldtype))
1602                                 emit_nullpointer_check_force(cd, iptr, s1);
1603 #endif
1604
1605                         switch (fieldtype) {
1606                         case TYPE_INT:
1607 #if defined(ENABLE_SOFTFLOAT)
1608                         case TYPE_FLT:
1609 #endif
1610                         case TYPE_ADR:
1611                                 s2 = emit_load_s2(jd, iptr, REG_ITMP1);
1612                                 break;
1613 #if defined(ENABLE_SOFTFLOAT)
1614                         case TYPE_DBL: /* fall through */
1615 #endif
1616                         case TYPE_LNG:
1617                                 s2 = emit_load_s2(jd, iptr, REG_ITMP12_PACKED);
1618                                 break;
1619 #if !defined(ENABLE_SOFTFLOAT)
1620                         case TYPE_FLT:
1621                         case TYPE_DBL:
1622                                 s2 = emit_load_s2(jd, iptr, REG_FTMP1);
1623                                 break;
1624 #endif
1625                         default:
1626                                 assert(0);
1627                         }
1628
1629                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1630                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1631
1632                                 codegen_addpatchref(cd, PATCHER_get_putfield, uf, 0);
1633
1634                                 if (opt_showdisassemble)
1635                                         M_NOP;
1636
1637                                 disp = 0;
1638                         }
1639
1640                         switch (fieldtype) {
1641                         case TYPE_INT:
1642 #if defined(ENABLE_SOFTFLOAT)
1643                         case TYPE_FLT:
1644 #endif
1645                         case TYPE_ADR:
1646                                 M_IST(s2, s1, disp);
1647                                 break;
1648                         case TYPE_LNG:
1649 #if defined(ENABLE_SOFTFLOAT)
1650                         case TYPE_DBL:
1651 #endif
1652                                 M_LST(s2, s1, disp);
1653                                 break;
1654 #if !defined(ENABLE_SOFTFLOAT)
1655                         case TYPE_FLT:
1656                                 M_FST(s2, s1, disp);
1657                                 break;
1658                         case TYPE_DBL:
1659                                 M_DST(s2, s1, disp);
1660                                 break;
1661 #endif
1662                         default:
1663                                 assert(0);
1664                         }
1665                         break;
1666
1667
1668                 /* branch operations **************************************************/
1669
1670                 case ICMD_ATHROW:       /* ..., objectref ==> ... (, objectref)       */
1671
1672                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1673                         M_INTMOVE(s1, REG_ITMP1_XPTR);
1674                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1675                                 codegen_addpatchref(cd, PATCHER_athrow_areturn,
1676                                                                         iptr->sx.s23.s2.uc, 0);
1677
1678                                 if (opt_showdisassemble)
1679                                         M_NOP;
1680                         }
1681                         disp = dseg_add_functionptr(cd, asm_handle_exception);
1682                         M_DSEG_LOAD(REG_ITMP3, disp);
1683                         M_MOV(REG_ITMP2_XPC, REG_PC);
1684                         M_MOV(REG_PC, REG_ITMP3);
1685                         M_NOP;              /* nop ensures that XPC is less than the end  */
1686                                             /* of basic block                             */
1687                         break;
1688
1689                 case ICMD_GOTO:         /* ... ==> ...                                */
1690                 case ICMD_RET:
1691
1692                         emit_br(cd, iptr->dst.block);
1693                         break;
1694
1695                 case ICMD_JSR:          /* ... ==> ...                                */
1696
1697                         emit_br(cd, iptr->sx.s23.s3.jsrtarget.block);
1698                         break;
1699
1700                 case ICMD_IFNULL:       /* ..., value ==> ...                         */
1701                 case ICMD_IFNONNULL:
1702
1703                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1704                         M_TEQ_IMM(s1, 0);
1705                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFNULL, BRANCH_OPT_NONE);
1706                         break;
1707
1708                 case ICMD_IFLT:         /* ..., value ==> ...                         */
1709                 case ICMD_IFLE:         /* op1 = target JavaVM pc, val.i = constant   */
1710                 case ICMD_IFGT:
1711                 case ICMD_IFGE:
1712                 case ICMD_IFEQ:
1713                 case ICMD_IFNE:
1714
1715                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1716                         M_COMPARE(s1, iptr->sx.val.i);
1717                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFEQ, BRANCH_OPT_NONE);
1718                         break;
1719
1720                 case ICMD_IF_LEQ:       /* ..., value ==> ...                         */
1721
1722                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1723                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1724                         if (iptr->sx.val.l == 0) {
1725                                 M_ORR_S(s1, s2, REG_ITMP3);
1726                         }
1727                         else {
1728                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1729                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1730                                 M_CMP(s1, REG_ITMP3);*/
1731                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1732                                 M_CMPEQ(s2, REG_ITMP3);
1733                         }
1734                         emit_beq(cd, iptr->dst.block);
1735                         break;
1736
1737                 case ICMD_IF_LLT:       /* ..., value ==> ...                         */
1738
1739                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1740                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1741                         if (iptr->sx.val.l == 0) {
1742                                 /* if high word is less than zero, the whole long is too */
1743                                 M_CMP_IMM(s1, 0);
1744                                 emit_blt(cd, iptr->dst.block);
1745                         }
1746                         else {
1747                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1748                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1749                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1750                                 M_CMP(s1, REG_ITMP3);*/
1751                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1752                                 M_MOVGT_IMM(2, REG_ITMP1);
1753                                 M_MOVEQ_IMM(1, REG_ITMP1);
1754
1755                                 /* low compare: x=x-1(ifLO) */
1756                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1757                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1758                                 M_CMP(s2, REG_ITMP3);*/
1759                                 M_SUBLO_IMM(REG_ITMP1, REG_ITMP1, 1);
1760
1761                                 /* branch if (x LT 1) */
1762                                 M_CMP_IMM(REG_ITMP1, 1);
1763                                 emit_blt(cd, iptr->dst.block);
1764                         }
1765                         break;
1766
1767                 case ICMD_IF_LLE:       /* ..., value ==> ...                         */
1768
1769                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1770                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1771                         if (iptr->sx.val.l == 0) {
1772                                 /* if high word is less than zero, the whole long is too  */
1773                                 M_CMP_IMM(s1, 0);
1774                                 emit_blt(cd, iptr->dst.block);
1775
1776                                 /* ... otherwise the low word has to be zero (tricky!) */
1777                                 M_CMPEQ_IMM(s2, 0);
1778                                 emit_beq(cd, iptr->dst.block);
1779                         }
1780                         else {
1781                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1782                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1783                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1784                                 M_CMP(s1, REG_ITMP3);*/
1785                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1786                                 M_MOVGT_IMM(2, REG_ITMP1);
1787                                 M_MOVEQ_IMM(1, REG_ITMP1);
1788
1789                                 /* low compare: x=x+1(ifHI) */
1790                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1791                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1792                                 M_CMP(s2, REG_ITMP3);*/
1793                                 M_ADDHI_IMM(REG_ITMP1, REG_ITMP1, 1);
1794
1795                                 /* branch if (x LE 1) */
1796                                 M_CMP_IMM(REG_ITMP1, 1);
1797                                 emit_ble(cd, iptr->dst.block);
1798                         }
1799                         break;
1800
1801                 case ICMD_IF_LGE:       /* ..., value ==> ...                         */
1802
1803                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1804                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1805                         if (iptr->sx.val.l == 0) {
1806                                 /* if high word is greater or equal zero, the whole long is too */
1807                                 M_CMP_IMM(s1, 0);
1808                                 emit_bge(cd, iptr->dst.block);
1809                         }
1810                         else {
1811                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1812                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1813                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1814                                 M_CMP(s1, REG_ITMP3);*/
1815                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1816                                 M_MOVGT_IMM(2, REG_ITMP1);
1817                                 M_MOVEQ_IMM(1, REG_ITMP1);
1818
1819                                 /* low compare: x=x-1(ifLO) */
1820                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1821                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1822                                 M_CMP(s2, REG_ITMP3);*/
1823                                 M_SUBLO_IMM(REG_ITMP1, REG_ITMP1, 1);
1824
1825                                 /* branch if (x GE 1) */
1826                                 M_CMP_IMM(REG_ITMP1, 1);
1827                                 emit_bge(cd, iptr->dst.block);
1828                         }
1829                         break;
1830
1831                 case ICMD_IF_LGT:       /* ..., value ==> ...                         */
1832
1833                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1834                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1835 #if 0
1836                         if (iptr->sx.val.l == 0) {
1837                                 /* if high word is greater than zero, the whole long is too */
1838                                 M_CMP_IMM(s1, 0);
1839                                 M_BGT(0);
1840                                 codegen_add_branch_ref(cd, iptr->dst.block);
1841
1842                                 /* ... or high was zero and low is non zero (tricky!) */
1843                                 M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1844                                 M_MOVLT_IMM(1, REG_ITMP3);
1845                                 M_ORR_S(REG_ITMP3, s2, REG_ITMP3);
1846                                 M_BNE(0);
1847                                 codegen_add_branch_ref(cd, iptr->dst.block);
1848                         }
1849                         else {
1850 #endif
1851                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1852                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1853                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1854                                 M_CMP(s1, REG_ITMP3);*/
1855                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1856                                 M_MOVGT_IMM(2, REG_ITMP1);
1857                                 M_MOVEQ_IMM(1, REG_ITMP1);
1858
1859                                 /* low compare: x=x+1(ifHI) */
1860                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1861                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1862                                 M_CMP(s2, REG_ITMP3);*/
1863                                 M_ADDHI_IMM(REG_ITMP1, REG_ITMP1, 1);
1864
1865                                 /* branch if (x GT 1) */
1866                                 M_CMP_IMM(REG_ITMP1, 1);
1867                                 emit_bgt(cd, iptr->dst.block);
1868 #if 0
1869                         }
1870 #endif
1871                         break;
1872
1873                 case ICMD_IF_LNE:       /* ..., value ==> ...                         */
1874
1875                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1876                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1877                         if (iptr->sx.val.l == 0) {
1878                                 M_ORR_S(s1, s2, REG_ITMP3);
1879                         }
1880                         else {
1881                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1882                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1883                                 M_CMP(s1, REG_ITMP3);*/
1884                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1885                                 M_CMPEQ(s2, REG_ITMP3);
1886                         }
1887                         emit_bne(cd, iptr->dst.block);
1888                         break;
1889
1890                 case ICMD_IF_ICMPEQ:    /* ..., value, value ==> ...                  */
1891                 case ICMD_IF_ICMPNE:
1892                 case ICMD_IF_ICMPLT:
1893                 case ICMD_IF_ICMPLE:
1894                 case ICMD_IF_ICMPGT:
1895                 case ICMD_IF_ICMPGE:
1896
1897                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1898                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1899                         M_CMP(s1, s2);
1900                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IF_ICMPEQ, BRANCH_OPT_NONE);
1901                         break;
1902
1903                 case ICMD_IF_ACMPEQ:    /* ..., value, value ==> ...                  */
1904                 case ICMD_IF_ACMPNE:
1905
1906                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1907                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1908                         M_CMP(s1, s2);
1909                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IF_ACMPEQ, BRANCH_OPT_NONE);
1910                         break;
1911
1912                 case ICMD_IF_LCMPEQ:    /* ..., value, value ==> ...                  */
1913                                         /* op1 = target JavaVM pc                     */
1914
1915                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1916                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1917                         M_CMP(s1, s2);
1918
1919                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1920                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1921                         M_CMPEQ(s1, s2);
1922
1923                         emit_beq(cd, iptr->dst.block);
1924                         break;
1925
1926                 case ICMD_IF_LCMPNE:    /* ..., value, value ==> ...                  */
1927                                         /* op1 = target JavaVM pc                     */
1928
1929                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1930                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1931                         M_CMP(s1, s2);
1932
1933                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1934                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1935                         M_CMPEQ(s1, s2);
1936
1937                         emit_bne(cd, iptr->dst.block);
1938                         break;
1939
1940                 case ICMD_IF_LCMPLT:    /* ..., value, value ==> ...                  */
1941                                         /* op1 = target JavaVM pc                     */
1942
1943                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1944                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1945                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1946                         M_CMP(s1, s2);
1947                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1948                         M_MOVGT_IMM(2, REG_ITMP3);
1949                         M_MOVEQ_IMM(1, REG_ITMP3);
1950
1951                         /* low compare: x=x-1(ifLO) */
1952                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1953                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1954                         M_CMP(s1, s2);
1955                         M_SUBLO_IMM(REG_ITMP3, REG_ITMP3, 1);
1956
1957                         /* branch if (x LT 1) */
1958                         M_CMP_IMM(REG_ITMP3, 1);
1959                         emit_blt(cd, iptr->dst.block);
1960                         break;
1961
1962                 case ICMD_IF_LCMPLE:    /* ..., value, value ==> ...                  */
1963                                         /* op1 = target JavaVM pc                     */
1964
1965                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1966                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1967                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1968                         M_CMP(s1, s2);
1969                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1970                         M_MOVGT_IMM(2, REG_ITMP3);
1971                         M_MOVEQ_IMM(1, REG_ITMP3);
1972
1973                         /* low compare: x=x-1(ifLO) */
1974                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1975                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1976                         M_CMP(s1, s2);
1977                         M_ADDHI_IMM(REG_ITMP3, REG_ITMP3, 1);
1978
1979                         /* branch if (x LE 1) */
1980                         M_CMP_IMM(REG_ITMP3, 1);
1981                         emit_ble(cd, iptr->dst.block);
1982                         break;
1983
1984                 case ICMD_IF_LCMPGT:    /* ..., value, value ==> ...                  */
1985                                         /* op1 = target JavaVM pc                     */
1986
1987                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1988                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1989                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1990                         M_CMP(s1, s2);
1991                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1992                         M_MOVGT_IMM(2, REG_ITMP3);
1993                         M_MOVEQ_IMM(1, REG_ITMP3);
1994
1995                         /* low compare: x=x-1(ifLO) */
1996                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1997                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1998                         M_CMP(s1, s2);
1999                         M_ADDHI_IMM(REG_ITMP3, REG_ITMP3, 1);
2000
2001                         /* branch if (x GT 1) */
2002                         M_CMP_IMM(REG_ITMP3, 1);
2003                         emit_bgt(cd, iptr->dst.block);
2004                         break;
2005
2006                 case ICMD_IF_LCMPGE:    /* ..., value, value ==> ...                  */
2007                                         /* op1 = target JavaVM pc                     */
2008
2009                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
2010                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
2011                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
2012                         M_CMP(s1, s2);
2013                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
2014                         M_MOVGT_IMM(2, REG_ITMP3);
2015                         M_MOVEQ_IMM(1, REG_ITMP3);
2016
2017                         /* low compare: x=x-1(ifLO) */
2018                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2019                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
2020                         M_CMP(s1, s2);
2021                         M_SUBLO_IMM(REG_ITMP3, REG_ITMP3, 1);
2022
2023                         /* branch if (x GE 1) */
2024                         M_CMP_IMM(REG_ITMP3, 1);
2025                         emit_bge(cd, iptr->dst.block);
2026                         break;
2027
2028                 case ICMD_TABLESWITCH:  /* ..., index ==> ...                         */
2029                         {
2030                         s4 i, l;
2031                         branch_target_t *table;
2032
2033                         table = iptr->dst.table;
2034
2035                         l = iptr->sx.s23.s2.tablelow;
2036                         i = iptr->sx.s23.s3.tablehigh;
2037
2038                         /* calculate new index (index - low) */
2039                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2040                         if (l  == 0) {
2041                                 M_INTMOVE(s1, REG_ITMP1);
2042                         } else if (IS_IMM(l)) {
2043                                 M_SUB_IMM(REG_ITMP1, s1, l);
2044                         } else {
2045                                 ICONST(REG_ITMP2, l);
2046                                 M_SUB(REG_ITMP1, s1, REG_ITMP2);
2047                         }
2048
2049                         /* range check (index <= high-low) */
2050                         i = i - l + 1;
2051                         M_COMPARE(REG_ITMP1, i-1);
2052                         emit_bugt(cd, table[0].block);
2053
2054                         /* build jump table top down and use address of lowest entry */
2055
2056                         table += i;
2057
2058                         while (--i >= 0) {
2059                                 dseg_add_target(cd, table->block);
2060                                 --table;
2061                         }
2062                         }
2063
2064                         /* length of dataseg after last dseg_add_target is used by load */
2065                         /* TODO: this loads from data-segment */
2066                         M_ADD(REG_ITMP2, REG_PV, REG_LSL(REG_ITMP1, 2));
2067                         M_LDR(REG_PC, REG_ITMP2, -(cd->dseglen));
2068                         break;
2069
2070                 case ICMD_LOOKUPSWITCH: /* ..., key ==> ...                           */
2071                         {
2072                         s4 i;
2073                         lookup_target_t *lookup;
2074
2075                         lookup = iptr->dst.lookup;
2076
2077                         i = iptr->sx.s23.s2.lookupcount;
2078
2079                         /* compare keys */
2080                         MCODECHECK((i<<2)+8);
2081                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2082
2083                         while (--i >= 0) {
2084                                 M_COMPARE(s1, lookup->value);
2085                                 emit_beq(cd, lookup->target.block);
2086                                 lookup++;
2087                         }
2088
2089                         /* default branch */
2090                         emit_br(cd, iptr->sx.s23.s3.lookupdefault.block);
2091                         }
2092                         break;
2093
2094                 case ICMD_FRETURN:      /* ..., retvalue ==> ...                      */
2095
2096 #if !defined(ENABLE_SOFTFLOAT)
2097                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
2098                         M_CAST_FLT_TO_INT_TYPED(VAROP(iptr->s1)->type, s1, REG_RESULT);
2099                         goto ICMD_RETURN_do;
2100 #endif
2101
2102                 case ICMD_IRETURN:      /* ..., retvalue ==> ...                      */
2103
2104                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2105                         M_INTMOVE(s1, REG_RESULT);
2106                         goto ICMD_RETURN_do;
2107
2108                 case ICMD_DRETURN:      /* ..., retvalue ==> ...                      */
2109
2110 #if !defined(ENABLE_SOFTFLOAT)
2111                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
2112                         M_CAST_FLT_TO_INT_TYPED(VAROP(iptr->s1)->type, s1, REG_RESULT_PACKED);
2113                         goto ICMD_RETURN_do;
2114 #endif
2115
2116                 case ICMD_LRETURN:      /* ..., retvalue ==> ...                      */
2117
2118                         s1 = emit_load_s1(jd, iptr, REG_RESULT_PACKED);
2119                         M_LNGMOVE(s1, REG_RESULT_PACKED);
2120                         goto ICMD_RETURN_do;
2121
2122                 case ICMD_ARETURN:      /* ..., retvalue ==> ...                      */
2123
2124                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2125                         M_INTMOVE(s1, REG_RESULT);
2126                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2127                                 codegen_addpatchref(cd, PATCHER_athrow_areturn,
2128                                                                         iptr->sx.s23.s2.uc, 0);
2129
2130                                 if (opt_showdisassemble)
2131                                         M_NOP;
2132                         }
2133                         goto ICMD_RETURN_do;
2134
2135                 case ICMD_RETURN:       /* ...  ==> ...                               */
2136                         ICMD_RETURN_do:
2137
2138 #if !defined(NDEBUG)
2139                         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
2140                                 emit_verbosecall_exit(jd);
2141 #endif
2142
2143 #if defined(ENABLE_THREADS)
2144                         /* call monitorexit function */
2145
2146                         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
2147                                 /* stack offset for monitor argument */
2148
2149                                 s1 = rd->memuse;
2150
2151                                 /* we need to save the proper return value */
2152
2153                                 switch (iptr->opc) {
2154                                 case ICMD_IRETURN:
2155                                 case ICMD_ARETURN:
2156                                 case ICMD_LRETURN:
2157                                 case ICMD_FRETURN: /* XXX TWISTI: is that correct? */
2158                                 case ICMD_DRETURN:
2159                                         M_STMFD(BITMASK_RESULT, REG_SP);
2160                                         s1 += 2;
2161                                         break;
2162                                 }
2163
2164                                 M_LDR(REG_A0, REG_SP, s1 * 4);
2165                                 disp = dseg_add_functionptr(cd, LOCK_monitor_exit);
2166                                 M_DSEG_BRANCH(disp);
2167
2168                                 /* we no longer need PV here, no more loading */
2169                                 /*s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2170                                 M_RECOMPUTE_PV(s1);*/
2171
2172                                 switch (iptr->opc) {
2173                                 case ICMD_IRETURN:
2174                                 case ICMD_ARETURN:
2175                                 case ICMD_LRETURN:
2176                                 case ICMD_FRETURN: /* XXX TWISTI: is that correct? */
2177                                 case ICMD_DRETURN:
2178                                         M_LDMFD(BITMASK_RESULT, REG_SP);
2179                                         break;
2180                                 }
2181                         }
2182 #endif
2183
2184                         /* deallocate stackframe for spilled variables */
2185
2186                         if ((cd->stackframesize - savedregs_num) > 0)
2187                                 M_ADD_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize - savedregs_num);
2188
2189                         /* restore callee saved registers + do return */
2190
2191                         if (savedregs_bitmask) {
2192                                 if (!jd->isleafmethod) {
2193                                         savedregs_bitmask &= ~(1<<REG_LR);
2194                                         savedregs_bitmask |= (1<<REG_PC);
2195                                 }
2196                                 M_LDMFD(savedregs_bitmask, REG_SP);
2197                         }
2198
2199                         /* if LR was not on stack, we need to return manually */
2200
2201                         if (jd->isleafmethod)
2202                                 M_MOV(REG_PC, REG_LR);
2203                         break;
2204
2205                 case ICMD_BUILTIN:      /* ..., arg1, arg2, arg3 ==> ...              */
2206
2207                         bte = iptr->sx.s23.s3.bte;
2208                         md  = bte->md;
2209                         goto ICMD_INVOKE_do;
2210
2211                 case ICMD_INVOKESTATIC: /* ..., [arg1, [arg2 ...]] ==> ...            */
2212                 case ICMD_INVOKESPECIAL:/* ..., objectref, [arg1, [arg2 ...]] ==> ... */
2213                 case ICMD_INVOKEVIRTUAL:/* op1 = arg count, val.a = method pointer    */
2214                 case ICMD_INVOKEINTERFACE:
2215
2216                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2217                                 lm = NULL;
2218                                 um = iptr->sx.s23.s3.um;
2219                                 md = um->methodref->parseddesc.md;
2220                         }
2221                         else {
2222                                 lm = iptr->sx.s23.s3.fmiref->p.method;
2223                                 um = NULL;
2224                                 md = lm->parseddesc;
2225                         }
2226
2227                 ICMD_INVOKE_do:
2228                         /* copy arguments to registers or stack location */
2229
2230                         s3 = md->paramcount;
2231
2232                         MCODECHECK((s3 << 1) + 64);
2233
2234                         for (s3 = s3 - 1; s3 >= 0; s3--) {
2235                                 var = VAR(iptr->sx.s23.s2.args[s3]);
2236
2237                                 if (var->flags & PREALLOC) /* argument was precolored? */
2238                                         continue;
2239
2240                                 /* TODO: document me */
2241 #if !defined(ENABLE_SOFTFLOAT)
2242                                 if (IS_INT_LNG_TYPE(var->type)) {
2243 #endif /* !defined(ENABLE_SOFTFLOAT) */
2244                                         if (!md->params[s3].inmemory) {
2245                                                 s1 = ARGUMENT_REGS(var->type, md->params[s3].regoff);
2246                                                 SPLIT_OPEN(var->type, s1, REG_ITMP2);
2247                                                 d = emit_load(jd, iptr, var, s1);
2248
2249                                                 if (IS_2_WORD_TYPE(var->type))
2250                                                         M_LNGMOVE(d, s1);
2251                                                 else
2252                                                         M_INTMOVE(d, s1);
2253
2254                                                 SPLIT_STORE_AND_CLOSE(var->type, s1, 0);
2255                                         }
2256                                         else {
2257                                                 if (IS_2_WORD_TYPE(var->type)) {
2258                                                         d = emit_load(jd, iptr, var, REG_ITMP12_PACKED);
2259                                                         M_LST(d, REG_SP, md->params[s3].regoff * 4);
2260                                                 }
2261                                                 else {
2262                                                         d = emit_load(jd, iptr, var, REG_ITMP1);
2263                                                         M_IST(d, REG_SP, md->params[s3].regoff * 4);
2264                                                 }
2265                                         }
2266 #if !defined(ENABLE_SOFTFLOAT)
2267                                 }
2268                                 else {
2269                                         if (!md->params[s3].inmemory) {
2270                                                 s1 = ARGUMENT_REGS(var->type, md->params[s3].regoff);
2271                                                 d = emit_load(jd, iptr, var, REG_FTMP1);
2272                                                 SPLIT_OPEN(var->type, s1, REG_ITMP1);
2273                                                 M_CAST_FLT_TO_INT_TYPED(var->type, d, s1);
2274                                                 SPLIT_STORE_AND_CLOSE(var->type, s1, 0);
2275                                         }
2276                                         else {
2277                                                 d = emit_load(jd, iptr, var, REG_FTMP1);
2278                                                 if (IS_2_WORD_TYPE(var->type))
2279                                                         M_DST(d, REG_SP, md->params[s3].regoff * 4);
2280                                                 else
2281                                                         M_FST(d, REG_SP, md->params[s3].regoff * 4);
2282                                         }
2283                                 }
2284 #endif /* !defined(ENABLE_SOFTFLOAT) */
2285                         }
2286
2287                         switch (iptr->opc) {
2288                         case ICMD_BUILTIN:
2289                                 disp = dseg_add_functionptr(cd, bte->fp);
2290
2291                                 M_DSEG_LOAD(REG_PV, disp); /* pointer to built-in-function */
2292
2293                                 /* generate the actual call */
2294
2295                                 M_MOV(REG_LR, REG_PC);
2296                                 M_MOV(REG_PC, REG_PV);
2297                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2298                                 M_RECOMPUTE_PV(s1);
2299
2300                                 emit_exception_check(cd, iptr);
2301                                 break;
2302
2303                         case ICMD_INVOKESPECIAL:
2304                                 emit_nullpointer_check(cd, iptr, REG_A0);
2305                                 /* fall through */
2306
2307                         case ICMD_INVOKESTATIC:
2308                                 if (lm == NULL) {
2309                                         disp = dseg_add_unique_address(cd, NULL);
2310
2311                                         codegen_addpatchref(cd, PATCHER_invokestatic_special,
2312                                                                                 um, disp);
2313
2314                                         if (opt_showdisassemble)
2315                                                 M_NOP;
2316                                 }
2317                                 else
2318                                         disp = dseg_add_address(cd, lm->stubroutine);
2319
2320                                 M_DSEG_LOAD(REG_PV, disp);            /* Pointer to method */
2321
2322                                 /* generate the actual call */
2323
2324                                 M_MOV(REG_LR, REG_PC);
2325                                 M_MOV(REG_PC, REG_PV);
2326                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2327                                 M_RECOMPUTE_PV(s1);
2328                                 break;
2329
2330                         case ICMD_INVOKEVIRTUAL:
2331                                 if (lm == NULL) {
2332                                         codegen_addpatchref(cd, PATCHER_invokevirtual, um, 0);
2333
2334                                         if (opt_showdisassemble)
2335                                                 M_NOP;
2336
2337                                         s1 = 0;
2338                                 }
2339                                 else
2340                                         s1 = OFFSET(vftbl_t, table[0]) +
2341                                                 sizeof(methodptr) * lm->vftblindex;
2342
2343                                 /* implicit null-pointer check */
2344                                 M_LDR_INTERN(REG_METHODPTR, REG_A0,
2345                                                          OFFSET(java_objectheader, vftbl));
2346                                 M_LDR_INTERN(REG_PV, REG_METHODPTR, s1);
2347
2348                                 /* generate the actual call */
2349
2350                                 M_MOV(REG_LR, REG_PC);
2351                                 M_MOV(REG_PC, REG_PV);
2352                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2353                                 M_RECOMPUTE_PV(s1);
2354                                 break;
2355
2356                         case ICMD_INVOKEINTERFACE:
2357                                 if (lm == NULL) {
2358                                         codegen_addpatchref(cd, PATCHER_invokeinterface, um, 0);
2359
2360                                         if (opt_showdisassemble)
2361                                                 M_NOP;
2362
2363                                         s1 = 0;
2364                                         s2 = 0;
2365                                 }
2366                                 else {
2367                                         s1 = OFFSET(vftbl_t, interfacetable[0]) -
2368                                                 sizeof(methodptr*) * lm->class->index;
2369                                         s2 = sizeof(methodptr) * (lm - lm->class->methods);
2370                                 }
2371
2372                                 /* implicit null-pointer check */
2373                                 M_LDR_INTERN(REG_METHODPTR, REG_A0,
2374                                                          OFFSET(java_objectheader, vftbl));
2375                                 M_LDR_INTERN(REG_METHODPTR, REG_METHODPTR, s1);
2376                                 M_LDR_INTERN(REG_PV, REG_METHODPTR, s2);
2377
2378                                 /* generate the actual call */
2379
2380                                 M_MOV(REG_LR, REG_PC);
2381                                 M_MOV(REG_PC, REG_PV);
2382                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2383                                 M_RECOMPUTE_PV(s1);
2384                                 break;
2385                         }
2386
2387                         /* store return value */
2388
2389                         d = md->returntype.type;
2390
2391 #if !defined(__SOFTFP__)
2392                         /* TODO: this is only a hack, since we use R0/R1 for float
2393                            return!  this depends on gcc; it is independent from
2394                            our ENABLE_SOFTFLOAT define */
2395                         if (iptr->opc == ICMD_BUILTIN && d != TYPE_VOID && IS_FLT_DBL_TYPE(d)) {
2396 #if 0 && !defined(NDEBUG)
2397                                 dolog("BUILTIN that returns float or double (%s.%s)", m->class->name->text, m->name->text);
2398 #endif
2399                                 /* we cannot use this macro, since it is not defined
2400                                    in ENABLE_SOFTFLOAT M_CAST_FLT_TO_INT_TYPED(d,
2401                                    REG_FRESULT, REG_RESULT_TYPED(d)); */
2402                                 if (IS_2_WORD_TYPE(d)) {
2403                                         DCD(0xed2d8102); /* stfd    f0, [sp, #-8]! */
2404                                         M_LDRD_UPDATE(REG_RESULT_PACKED, REG_SP, 8);
2405                                 } else {
2406                                         DCD(0xed2d0101); /* stfs    f0, [sp, #-4]!*/
2407                                         M_LDR_UPDATE(REG_RESULT, REG_SP, 4);
2408                                 }
2409                         }
2410 #endif
2411
2412                         if (d != TYPE_VOID) {
2413 #if !defined(ENABLE_SOFTFLOAT)
2414                                 if (IS_INT_LNG_TYPE(d)) {
2415 #endif /* !defined(ENABLE_SOFTFLOAT) */
2416                                         if (IS_2_WORD_TYPE(d)) {
2417                                                 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
2418                                                 M_LNGMOVE(REG_RESULT_PACKED, s1);
2419                                         }
2420                                         else {
2421                                                 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2422                                                 M_INTMOVE(REG_RESULT, s1);
2423                                         }
2424
2425 #if !defined(ENABLE_SOFTFLOAT)
2426                                 } else {
2427                                         s1 = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
2428                                         M_CAST_INT_TO_FLT_TYPED(VAROP(iptr->dst)->type, REG_RESULT_TYPED(VAROP(iptr->dst)->type), s1);
2429                                 }
2430 #endif /* !defined(ENABLE_SOFTFLOAT) */
2431
2432                                 emit_store_dst(jd, iptr, s1);
2433                         }
2434                         break;
2435
2436                 case ICMD_CHECKCAST:  /* ..., objectref ==> ..., objectref            */
2437                                       /* val.a: (classinfo*) superclass               */
2438
2439                         if (!(iptr->flags.bits & INS_FLAG_ARRAY)) {
2440                                 /* object type cast-check */
2441
2442                         classinfo *super;
2443                         s4         superindex;
2444
2445                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2446                                 super      = NULL;
2447                                 superindex = 0;
2448                         }
2449                         else {
2450                                 super      = iptr->sx.s23.s3.c.cls;
2451                                 superindex = super->index;
2452                         }
2453
2454 #if defined(ENABLE_THREADS)
2455                         codegen_threadcritrestart(cd, cd->mcodeptr - cd->mcodebase);
2456 #endif
2457                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2458
2459                         /* if class is not resolved, check which code to call */
2460
2461                         if (super == NULL) {
2462                                 M_TST(s1, s1);
2463                                 emit_label_beq(cd, BRANCH_LABEL_1);
2464
2465                                 disp = dseg_add_unique_s4(cd, 0); /* super->flags */
2466                                 codegen_addpatchref(cd, PATCHER_checkcast_instanceof_flags,
2467                                                     iptr->sx.s23.s3.c.ref, disp);
2468
2469                                 if (opt_showdisassemble)
2470                                         M_NOP;
2471
2472                                 M_DSEG_LOAD(REG_ITMP2, disp);
2473                                 disp = dseg_add_s4(cd, ACC_INTERFACE);
2474                                 M_DSEG_LOAD(REG_ITMP3, disp);
2475                                 M_TST(REG_ITMP2, REG_ITMP3);
2476                                 emit_label_beq(cd, BRANCH_LABEL_2);
2477                         }
2478
2479                         /* interface checkcast code */
2480
2481                         if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2482                                 if (super == NULL) {
2483                                         codegen_addpatchref(cd,
2484                                                             PATCHER_checkcast_instanceof_interface,
2485                                                             iptr->sx.s23.s3.c.ref, 0);
2486
2487                                         if (opt_showdisassemble)
2488                                                 M_NOP;
2489                                 }
2490                                 else {
2491                                         M_TST(s1, s1);
2492                                         emit_label_beq(cd, BRANCH_LABEL_3);
2493                                 }
2494
2495                                 M_LDR_INTERN(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2496                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, interfacetablelength));
2497                                 assert(IS_IMM(superindex));
2498                                 M_CMP_IMM(REG_ITMP3, superindex);
2499                                 emit_classcast_check(cd, iptr, BRANCH_LE, REG_ITMP3, s1);
2500
2501                                 s2 = OFFSET(vftbl_t, interfacetable[0]) -
2502                                         superindex * sizeof(methodptr*);
2503
2504                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, s2);
2505                                 M_TST(REG_ITMP3, REG_ITMP3);
2506                                 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_ITMP3, s1);
2507
2508                                 if (super == NULL)
2509                                         emit_label_br(cd, BRANCH_LABEL_4);
2510                                 else
2511                                         emit_label(cd, BRANCH_LABEL_3);
2512                         }
2513
2514                         /* class checkcast code */
2515
2516                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2517                                 if (super == NULL) {
2518                                         emit_label(cd, BRANCH_LABEL_2);
2519
2520                                         disp = dseg_add_unique_address(cd, NULL);
2521
2522                                         codegen_addpatchref(cd, PATCHER_checkcast_instanceof_class,
2523                                                             iptr->sx.s23.s3.c.ref,
2524                                                                                 disp);
2525
2526                                         if (opt_showdisassemble)
2527                                                 M_NOP;
2528                                 }
2529                                 else {
2530                                         disp = dseg_add_address(cd, super->vftbl);
2531
2532                                         M_TST(s1, s1);
2533                                         emit_label_beq(cd, BRANCH_LABEL_5);
2534                                 }
2535
2536                                 M_LDR_INTERN(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2537                                 M_DSEG_LOAD(REG_ITMP3, disp);
2538 #if defined(ENABLE_THREADS)
2539                                 codegen_threadcritstart(cd, cd->mcodeptr - cd->mcodebase);
2540 #endif
2541                                 M_LDR_INTERN(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, baseval));
2542                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, baseval));
2543                                 M_SUB(REG_ITMP2, REG_ITMP2, REG_ITMP3);
2544                                 M_DSEG_LOAD(REG_ITMP3, disp);
2545                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, diffval));
2546 #if defined(ENABLE_THREADS)
2547                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2548 #endif
2549                                 M_CMP(REG_ITMP2, REG_ITMP3);
2550                                 emit_classcast_check(cd, iptr, BRANCH_UGT, 0, s1);
2551
2552                                 if (super != NULL)
2553                                         emit_label(cd, BRANCH_LABEL_5);
2554                         }
2555
2556                         if (super == NULL) {
2557                                 emit_label(cd, BRANCH_LABEL_1);
2558                                 emit_label(cd, BRANCH_LABEL_4);
2559                         }
2560
2561                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
2562                         }
2563                         else {
2564                                 /* array type cast-check */
2565
2566                                 s1 = emit_load_s1(jd, iptr, REG_A0);
2567                                 M_INTMOVE(s1, REG_A0);
2568
2569                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2570                                         disp = dseg_add_unique_address(cd, NULL);
2571
2572                                         codegen_addpatchref(cd, PATCHER_builtin_arraycheckcast,
2573                                                                                 iptr->sx.s23.s3.c.ref,
2574                                                                                 disp);
2575
2576                                         if (opt_showdisassemble)
2577                                                 M_NOP;
2578                                 }
2579                                 else
2580                                         disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2581
2582                                 M_DSEG_LOAD(REG_A1, disp);
2583                                 disp = dseg_add_functionptr(cd, BUILTIN_arraycheckcast);
2584                                 M_DSEG_BRANCH(disp);
2585
2586                                 /* recompute pv */
2587                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2588                                 M_RECOMPUTE_PV(disp);
2589
2590                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2591                                 M_TST(REG_RESULT, REG_RESULT);
2592                                 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_RESULT, s1);
2593
2594                                 d = codegen_reg_of_dst(jd, iptr, s1);
2595                         }
2596
2597                         M_INTMOVE(s1, d);
2598                         emit_store_dst(jd, iptr, d);
2599                         break;
2600
2601                 case ICMD_INSTANCEOF: /* ..., objectref ==> ..., intresult            */
2602                                       /* val.a: (classinfo*) superclass               */
2603                         {
2604                         classinfo *super;
2605                         s4         superindex;
2606
2607                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2608                                 super      = NULL;
2609                                 superindex = 0;
2610                         }
2611                         else {
2612                                 super      = iptr->sx.s23.s3.c.cls;
2613                                 superindex = super->index;
2614                         }
2615
2616 #if defined(ENABLE_THREADS)
2617                         codegen_threadcritrestart(cd, cd->mcodeptr - cd->mcodebase);
2618 #endif
2619                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2620                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
2621                         if (s1 == d) {
2622                                 M_MOV(REG_ITMP1, s1);
2623                                 s1 = REG_ITMP1;
2624                         }
2625
2626                         /* if class is not resolved, check which code to call */
2627
2628                         if (super == NULL) {
2629                                 M_EOR(d, d, d);
2630
2631                                 M_TST(s1, s1);
2632                                 emit_label_beq(cd, BRANCH_LABEL_1);
2633
2634                                 disp = dseg_add_unique_s4(cd, 0); /* super->flags */
2635                                 codegen_addpatchref(cd, PATCHER_checkcast_instanceof_flags,
2636                                                     iptr->sx.s23.s3.c.ref, disp);
2637
2638                                 if (opt_showdisassemble)
2639                                         M_NOP;
2640
2641                                 M_DSEG_LOAD(REG_ITMP2, disp);
2642                                 disp = dseg_add_s4(cd, ACC_INTERFACE);
2643                                 M_DSEG_LOAD(REG_ITMP3, disp);
2644                                 M_TST(REG_ITMP2, REG_ITMP3);
2645                                 emit_label_beq(cd, BRANCH_LABEL_2);
2646                         }
2647
2648                         /* interface checkcast code */
2649
2650                         if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2651                                 if (super == NULL) {
2652                                         /* If d == REG_ITMP2, then it's destroyed in check
2653                                            code above.  */
2654                                         if (d == REG_ITMP2)
2655                                                 M_EOR(d, d, d);
2656
2657                                         codegen_addpatchref(cd,
2658                                                             PATCHER_checkcast_instanceof_interface,
2659                                                             iptr->sx.s23.s3.c.ref, 0);
2660
2661                                         if (opt_showdisassemble)
2662                                                 M_NOP;
2663                                 }
2664                                 else {
2665                                         M_EOR(d, d, d);
2666                                         M_TST(s1, s1);
2667                                         emit_label_beq(cd, BRANCH_LABEL_3);
2668                                 }
2669
2670                                 M_LDR_INTERN(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
2671                                 M_LDR_INTERN(REG_ITMP3,
2672                                                          REG_ITMP1, OFFSET(vftbl_t, interfacetablelength));
2673                                 assert(IS_IMM(superindex));
2674                                 M_CMP_IMM(REG_ITMP3, superindex);
2675                                 M_BLE(2);
2676
2677                                 s2 = OFFSET(vftbl_t, interfacetable[0]) -
2678                                         superindex * sizeof(methodptr*);
2679
2680                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP1, s2);
2681                                 M_TST(REG_ITMP3, REG_ITMP3);
2682                                 M_MOVNE_IMM(1, d);
2683
2684                                 if (super == NULL)
2685                                         emit_label_br(cd, BRANCH_LABEL_4);
2686                                 else
2687                                         emit_label(cd, BRANCH_LABEL_3);
2688                         }
2689
2690                         /* class checkcast code */
2691
2692                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2693                                 if (super == NULL) {
2694                                         emit_label(cd, BRANCH_LABEL_2);
2695
2696                                         disp = dseg_add_unique_address(cd, NULL);
2697
2698                                         codegen_addpatchref(cd, PATCHER_checkcast_instanceof_class,
2699                                                             iptr->sx.s23.s3.c.ref,
2700                                                                                 disp);
2701
2702                                         if (opt_showdisassemble)
2703                                                 M_NOP;
2704                                 }
2705                                 else {
2706                                         disp = dseg_add_address(cd, super->vftbl);
2707
2708                                         M_EOR(d, d, d);
2709                                         M_TST(s1, s1);
2710                                         emit_label_beq(cd, BRANCH_LABEL_5);
2711                                 }
2712
2713                                 M_LDR_INTERN(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
2714                                 M_DSEG_LOAD(REG_ITMP2, disp);
2715 #if defined(ENABLE_THREADS)
2716                                 codegen_threadcritstart(cd, cd->mcodeptr - cd->mcodebase);
2717 #endif
2718                                 M_LDR_INTERN(REG_ITMP1, REG_ITMP1, OFFSET(vftbl_t, baseval));
2719                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2720                                 M_LDR_INTERN(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2721 #if defined(ENABLE_THREADS)
2722                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2723 #endif
2724                                 M_SUB(REG_ITMP1, REG_ITMP1, REG_ITMP3);
2725                                 M_CMP(REG_ITMP1, REG_ITMP2);
2726                                 /* If d == REG_ITMP2, then it's destroyed */
2727                                 if (d == REG_ITMP2)
2728                                         M_EOR(d, d, d);
2729                                 M_MOVLS_IMM(1, d);
2730
2731                                 if (super != NULL)
2732                                         emit_label(cd, BRANCH_LABEL_5);
2733                         }
2734
2735                         if (super == NULL) {
2736                                 emit_label(cd, BRANCH_LABEL_1);
2737                                 emit_label(cd, BRANCH_LABEL_4);
2738                         }
2739
2740                         }
2741
2742                         emit_store_dst(jd, iptr, d);
2743                         break;
2744
2745                 case ICMD_MULTIANEWARRAY:/* ..., cnt1, [cnt2, ...] ==> ..., arrayref  */
2746
2747                         /* copy sizes to stack if necessary  */
2748
2749                         MCODECHECK((iptr->s1.argcount << 1) + 64);
2750
2751                         for (s1 = iptr->s1.argcount; --s1 >= 0; ) {
2752
2753                                 var = VAR(iptr->sx.s23.s2.args[s1]);
2754
2755                                 /* copy SAVEDVAR sizes to stack */
2756
2757                                 if (!(var->flags & PREALLOC)) {
2758                                         s2 = emit_load(jd, iptr, var, REG_ITMP1);
2759                                         M_STR(s2, REG_SP, s1 * 4);
2760                                 }
2761                         }
2762
2763                         /* a0 = dimension count */
2764
2765                         assert(IS_IMM(iptr->s1.argcount));
2766                         M_MOV_IMM(REG_A0, iptr->s1.argcount);
2767
2768                         /* is patcher function set? */
2769
2770                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2771                                 disp = dseg_add_unique_address(cd, NULL);
2772
2773                                 codegen_addpatchref(cd, PATCHER_builtin_multianewarray,
2774                                                                         iptr->sx.s23.s3.c.ref, disp);
2775
2776                                 if (opt_showdisassemble)
2777                                         M_NOP;
2778                         }
2779                         else
2780                                 disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2781
2782                         /* a1 = arraydescriptor */
2783
2784                         M_DSEG_LOAD(REG_A1, disp);
2785
2786                         /* a2 = pointer to dimensions = stack pointer */
2787
2788                         M_INTMOVE(REG_SP, REG_A2);
2789
2790                         /* call builtin_multianewarray here */
2791
2792                         disp = dseg_add_functionptr(cd, BUILTIN_multianewarray);
2793                         M_DSEG_BRANCH(disp);
2794
2795                         /* recompute pv */
2796
2797                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2798                         M_RECOMPUTE_PV(s1);
2799
2800                         /* check for exception before result assignment */
2801
2802                         emit_exception_check(cd, iptr);
2803
2804                         /* get arrayref */
2805
2806                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2807                         M_INTMOVE(REG_RESULT, d);
2808                         emit_store_dst(jd, iptr, d);
2809                         break;
2810
2811                 case ICMD_CHECKNULL:  /* ..., objectref  ==> ..., objectref           */
2812
2813                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2814                         emit_nullpointer_check(cd, iptr, s1);
2815                         break;
2816
2817                 default:
2818                         exceptions_throw_internalerror("Unknown ICMD %d during code generation",
2819                                                                                    iptr->opc);
2820                         return false;
2821                 } /* the big switch */
2822
2823                 } /* for all instructions */
2824
2825         } /* for all basic blocks */
2826
2827         dseg_createlinenumbertable(cd);
2828
2829
2830         /* generate stubs */
2831
2832         emit_patcher_stubs(jd);
2833
2834         /* everything's ok */
2835
2836         return true;
2837 }
2838
2839
2840 /* createcompilerstub **********************************************************
2841
2842    creates a stub routine which calls the compiler
2843
2844 *******************************************************************************/
2845
2846 #define COMPILERSTUB_DATASIZE    3 * SIZEOF_VOID_P
2847 #define COMPILERSTUB_CODESIZE    2 * 4
2848
2849 #define COMPILERSTUB_SIZE        COMPILERSTUB_DATASIZE + COMPILERSTUB_CODESIZE
2850
2851
2852 u1 *createcompilerstub(methodinfo *m)
2853 {
2854         u1          *s;                     /* memory to hold the stub            */
2855         ptrint      *d;
2856         codegendata *cd;
2857         s4           dumpsize;              /* code generation pointer            */
2858
2859         s = CNEW(u1, COMPILERSTUB_SIZE);
2860
2861         /* set data pointer and code pointer */
2862
2863         d = (ptrint *) s;
2864         s = s + COMPILERSTUB_DATASIZE;
2865
2866         /* mark start of dump memory area */
2867
2868         dumpsize = dump_size();
2869
2870         cd = DNEW(codegendata);
2871         cd->mcodeptr = s;
2872
2873         /* The codeinfo pointer is actually a pointer to the
2874            methodinfo. This fakes a codeinfo structure. */
2875
2876         d[0] = (ptrint) asm_call_jit_compiler;
2877         d[1] = (ptrint) m;
2878         d[2] = (ptrint) &d[1];                                    /* fake code->m */
2879
2880         /* code for the stub */
2881
2882         M_LDR_INTERN(REG_ITMP1, REG_PC, -(2 * 4 + 2 * SIZEOF_VOID_P));
2883         M_LDR_INTERN(REG_PC, REG_PC, -(3 * 4 + 3 * SIZEOF_VOID_P));
2884
2885 #if defined(ENABLE_STATISTICS)
2886         if (opt_stat)
2887                 count_cstub_len += COMPILERSTUB_SIZE * 4;
2888 #endif
2889
2890         /* release dump area */
2891
2892         dump_release(dumpsize);
2893
2894         /* synchronize instruction and data cache */
2895
2896         md_cacheflush(s, cd->mcodeptr - (u1 *) d);
2897
2898         return s;
2899 }
2900
2901
2902 /* createnativestub ************************************************************
2903
2904    Creates a stub routine which calls a native method.
2905
2906 *******************************************************************************/
2907
2908 u1 *createnativestub(functionptr f, jitdata *jd, methoddesc *nmd)
2909 {
2910         methodinfo   *m;
2911         codeinfo     *code;
2912         codegendata  *cd;
2913         registerdata *rd;
2914         s4            nativeparams;
2915         methoddesc   *md;
2916         s4            i, j;
2917         s4            t;
2918         s4            disp, funcdisp, s1, s2;
2919
2920         /* get required compiler data */
2921
2922         m    = jd->m;
2923         code = jd->code;
2924         cd   = jd->cd;
2925         rd   = jd->rd;
2926
2927         /* initialize variables */
2928
2929         md = m->parseddesc;
2930         nativeparams = (m->flags & ACC_STATIC) ? 2 : 1;
2931
2932         /* calculate stackframe size */
2933
2934         cd->stackframesize =
2935                 1 +                                                /* return address  */
2936                 sizeof(stackframeinfo) / SIZEOF_VOID_P +           /* stackframeinfo  */
2937                 sizeof(localref_table) / SIZEOF_VOID_P +           /* localref_table  */
2938                 nmd->memuse;                                       /* stack arguments */
2939
2940         /* align stack to 8-byte */
2941
2942         cd->stackframesize = (cd->stackframesize + 1) & ~1;
2943
2944         /* create method header */
2945
2946         (void) dseg_add_unique_address(cd, code);              /* CodeinfoPointer */
2947         (void) dseg_add_unique_s4(cd, cd->stackframesize * 4); /* FrameSize       */
2948         (void) dseg_add_unique_s4(cd, 0);                      /* IsSync          */
2949         (void) dseg_add_unique_s4(cd, 0);                      /* IsLeaf          */
2950         (void) dseg_add_unique_s4(cd, 0);                      /* IntSave         */
2951         (void) dseg_add_unique_s4(cd, 0);                      /* FltSave         */
2952         (void) dseg_addlinenumbertablesize(cd);
2953         (void) dseg_add_unique_s4(cd, 0);                      /* ExTableSize     */
2954
2955         /* generate stub code */
2956
2957         M_STMFD(1<<REG_LR, REG_SP);
2958         M_SUB_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize - 1);
2959
2960 #if !defined(NDEBUG)
2961         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
2962                 emit_verbosecall_enter(jd);
2963 #endif
2964
2965         /* get function address (this must happen before the stackframeinfo) */
2966
2967         funcdisp = dseg_add_functionptr(cd, f);
2968
2969 #if !defined(WITH_STATIC_CLASSPATH)
2970         if (f == NULL) {
2971                 codegen_addpatchref(cd, PATCHER_resolve_native, m, funcdisp);
2972
2973                 if (opt_showdisassemble)
2974                         M_NOP;
2975         }
2976 #endif
2977
2978         /* Save integer and float argument registers (these are 4
2979            registers, stack is 8-byte aligned). */
2980
2981         M_STMFD(BITMASK_ARGS, REG_SP);
2982         /* TODO: floating point */
2983
2984         /* create native stackframe info */
2985
2986         assert(IS_IMM(4*4 + cd->stackframesize * 4));
2987         M_ADD_IMM(REG_A0, REG_SP, 4*4 + cd->stackframesize * 4 - SIZEOF_VOID_P);
2988         M_MOV(REG_A1, REG_PV);
2989         M_ADD_IMM(REG_A2, REG_SP, 4*4 + cd->stackframesize * 4);
2990         M_LDR_INTERN(REG_A3, REG_SP, 4*4 + cd->stackframesize * 4 - SIZEOF_VOID_P);
2991         disp = dseg_add_functionptr(cd, codegen_start_native_call);
2992         M_DSEG_BRANCH(disp);
2993
2994         /* recompute pv */
2995
2996         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2997         M_RECOMPUTE_PV(s1);
2998
2999         /* Restore integer and float argument registers (these are 4
3000            registers, stack is 8-byte aligned). */
3001
3002         M_LDMFD(BITMASK_ARGS, REG_SP);
3003         /* TODO: floating point */
3004
3005         /* copy or spill arguments to new locations */
3006         /* ATTENTION: the ARM has only integer argument registers! */
3007
3008         for (i = md->paramcount - 1, j = i + nativeparams; i >= 0; i--, j--) {
3009                 t = md->paramtypes[i].type;
3010
3011                 if (!md->params[i].inmemory) {
3012                         s1 = ARGUMENT_REGS(t, md->params[i].regoff);
3013
3014                         if (!nmd->params[j].inmemory) {
3015                                 s2 = ARGUMENT_REGS(t, nmd->params[j].regoff);
3016
3017 #if !defined(__ARM_EABI__)
3018                                 SPLIT_OPEN(t, s1, REG_ITMP1);
3019                                 SPLIT_LOAD(t, s1, cd->stackframesize);
3020                                 SPLIT_OPEN(t, s2, REG_ITMP1);
3021 #endif
3022
3023                                 if (IS_2_WORD_TYPE(t))
3024                                         M_LNGMOVE(s1, s2);
3025                                 else
3026                                         M_INTMOVE(s1, s2);
3027
3028 #if !defined(__ARM_EABI__)
3029                                 SPLIT_STORE_AND_CLOSE(t, s2, 0);
3030 #endif
3031                         }
3032                         else {
3033                                 s2 = nmd->params[j].regoff;
3034
3035 #if !defined(__ARM_EABI__)
3036                                 SPLIT_OPEN(t, s1, REG_ITMP1);
3037                                 SPLIT_LOAD(t, s1, cd->stackframesize);
3038 #endif
3039
3040                                 if (IS_2_WORD_TYPE(t))
3041                                         M_LST(s1, REG_SP, s2 * 4);
3042                                 else
3043                                         M_IST(s1, REG_SP, s2 * 4);
3044                                 /* no SPLIT_CLOSE here because argument is fully on stack now */
3045                         }
3046                 }
3047                 else {
3048                         s1 = md->params[i].regoff + cd->stackframesize;
3049                         s2 = nmd->params[j].regoff;
3050
3051                         if (IS_2_WORD_TYPE(t)) {
3052                                 M_LLD(REG_ITMP12_PACKED, REG_SP, s1 * 4);
3053                                 M_LST(REG_ITMP12_PACKED, REG_SP, s2 * 4);
3054                         }
3055                         else {
3056                                 M_ILD(REG_ITMP1, REG_SP, s1 * 4);
3057                                 M_IST(REG_ITMP1, REG_SP, s2 * 4);
3058                         }
3059                 }
3060         }
3061
3062         /* put class into second argument register */
3063
3064         if (m->flags & ACC_STATIC) {
3065                 disp = dseg_add_address(cd, m->class);
3066                 M_DSEG_LOAD(REG_A1, disp);
3067         }
3068
3069         /* put env into first argument register */
3070
3071         disp = dseg_add_address(cd, _Jv_env);
3072         M_DSEG_LOAD(REG_A0, disp);
3073
3074         /* do the native function call */
3075
3076         M_DSEG_BRANCH(funcdisp);
3077
3078         /* recompute pv */
3079         /* TODO: this is only needed because of the tracer ... do we
3080            really need it? */
3081
3082         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3083         M_RECOMPUTE_PV(s1);
3084
3085 #if !defined(__SOFTFP__)
3086         /* TODO: this is only a hack, since we use R0/R1 for float return! */
3087         /* this depends on gcc; it is independent from our ENABLE_SOFTFLOAT define */
3088         if (md->returntype.type != TYPE_VOID && IS_FLT_DBL_TYPE(md->returntype.type)) {
3089 #if 0 && !defined(NDEBUG)
3090                 dolog("NATIVESTUB that returns float or double (%s.%s)", m->class->name->text, m->name->text);
3091 #endif
3092                 /* we cannot use this macro, since it is not defined in ENABLE_SOFTFLOAT */
3093                 /* M_CAST_FLT_TO_INT_TYPED(md->returntype.type, REG_FRESULT, REG_RESULT_TYPED(md->returntype.type)); */
3094                 if (IS_2_WORD_TYPE(md->returntype.type)) {
3095                         DCD(0xed2d8102); /* stfd    f0, [sp, #-8]! */
3096                         M_LDRD_UPDATE(REG_RESULT_PACKED, REG_SP, 8);
3097                 } else {
3098                         DCD(0xed2d0101); /* stfs    f0, [sp, #-4]!*/
3099                         M_LDR_UPDATE(REG_RESULT, REG_SP, 4);
3100                 }
3101         }
3102 #endif
3103
3104 #if !defined(NDEBUG)
3105         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
3106                 emit_verbosecall_exit(jd);
3107 #endif
3108
3109         /* remove native stackframe info */
3110         /* TODO: improve this store/load */
3111
3112         M_STMFD(BITMASK_RESULT, REG_SP);
3113
3114         M_ADD_IMM(REG_A0, REG_SP, 2*4 + cd->stackframesize * 4 - SIZEOF_VOID_P);
3115         disp = dseg_add_functionptr(cd, codegen_finish_native_call);
3116         M_DSEG_BRANCH(disp);
3117         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3118         M_RECOMPUTE_PV(s1);
3119
3120         M_MOV(REG_ITMP1_XPTR, REG_RESULT);
3121         M_LDMFD(BITMASK_RESULT, REG_SP);
3122
3123         /* finish stub code, but do not yet return to caller */
3124
3125         M_ADD_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize - 1);
3126         M_LDMFD(1<<REG_LR, REG_SP);
3127
3128         /* check for exception */
3129
3130         M_TST(REG_ITMP1_XPTR, REG_ITMP1_XPTR);
3131         M_MOVEQ(REG_LR, REG_PC);            /* if no exception, return to caller  */
3132
3133         /* handle exception here */
3134
3135         M_SUB_IMM(REG_ITMP2_XPC, REG_LR, 4);/* move fault address into xpc        */
3136
3137         disp = dseg_add_functionptr(cd, asm_handle_nat_exception);
3138         M_DSEG_LOAD(REG_ITMP3, disp);       /* load asm exception handler address */
3139         M_MOV(REG_PC, REG_ITMP3);           /* jump to asm exception handler      */
3140
3141         /* generate patcher stubs */
3142
3143         emit_patcher_stubs(jd);
3144
3145         codegen_finish(jd);
3146
3147         return code->entrypoint;
3148 }
3149
3150
3151 /* asm_debug *******************************************************************
3152
3153    Lazy debugger!
3154
3155 *******************************************************************************/
3156
3157 void asm_debug(int a1, int a2, int a3, int a4)
3158 {
3159         printf("===> i am going to exit after this debugging message!\n");
3160         printf("got asm_debug(%p, %p, %p, %p)\n",(void*)a1,(void*)a2,(void*)a3,(void*)a4);
3161         vm_abort("leave you now");
3162 }
3163
3164
3165 /*
3166  * These are local overrides for various environment variables in Emacs.
3167  * Please do not remove this and leave it at the end of the file, where
3168  * Emacs will automagically detect them.
3169  * ---------------------------------------------------------------------
3170  * Local variables:
3171  * mode: c
3172  * indent-tabs-mode: t
3173  * c-basic-offset: 4
3174  * tab-width: 4
3175  * End:
3176  * vim:noexpandtab:sw=4:ts=4:
3177  */