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 7900 2007-05-11 20:35:16Z 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 #include "threads/lock-common.h"
  47
  48 #include "vm/builtin.h"
  49 #include "vm/exceptions.h"
  50 #include "vm/global.h"
  51 #include "vm/vm.h"
  52
  53 #include "vm/jit/asmpart.h"
  54 #include "vm/jit/codegen-common.h"
  55 #include "vm/jit/dseg.h"
  56 #include "vm/jit/emit-common.h"
  57 #include "vm/jit/jit.h"
  58 #include "vm/jit/md.h"
  59 #include "vm/jit/methodheader.h"
  60 #include "vm/jit/parse.h"
  61 #include "vm/jit/patcher.h"
  62 #include "vm/jit/reg.h"
  63
  64 #if defined(ENABLE_LSRA)
  65 #include "vm/jit/allocator/lsra.h"
  66 #endif
  67
  68 #include "vmcore/loader.h"
  69 #include "vmcore/options.h"
  70
  71
  72 /* codegen_emit ****************************************************************
  73
  74    Generates machine code.
  75
  76 *******************************************************************************/
  77
  78 bool codegen_emit(jitdata *jd)
  79 {
  80         methodinfo         *m;
  81         codeinfo           *code;
  82         codegendata        *cd;
  83         registerdata       *rd;
  84         s4              i, t, len;
  85         s4              s1, s2, s3, d;
  86         s4              disp;
  87         varinfo        *var;
  88         basicblock     *bptr;
  89         instruction    *iptr;
  90         exception_entry *ex;
  91         s4              fieldtype;
  92         s4              varindex;
  93
  94         s4              spilledregs_num;
  95         s4              savedregs_num;
  96         u2              savedregs_bitmask;
  97         u2              currentline;
  98
  99         methodinfo         *lm;             /* local methodinfo for ICMD_INVOKE* */
 100         unresolved_method  *um;
 101         builtintable_entry *bte;
 102         methoddesc         *md;
 103
 104         /* get required compiler data */
 105
 106         m    = jd->m;
 107         code = jd->code;
 108         cd   = jd->cd;
 109         rd   = jd->rd;
 110
 111         /* prevent compiler warnings */
 112
 113         lm  = NULL;
 114         um  = NULL;
 115         bte = NULL;
 116
 117         fieldtype = -1;
 118
 119         /* space to save used callee saved registers */
 120
 121         savedregs_num = (jd->isleafmethod) ? 0 : 1;       /* space to save the LR */
 122         savedregs_num += (INT_SAV_CNT - rd->savintreguse);
 123         savedregs_num += (FLT_SAV_CNT - rd->savfltreguse);
 124
 125         spilledregs_num = rd->memuse;
 126
 127 #if defined(ENABLE_THREADS)        /* space to save argument of monitor_enter */
 128         if (checksync && (m->flags & ACC_SYNCHRONIZED))
 129                 spilledregs_num++;
 130 #endif
 131
 132         cd->stackframesize = spilledregs_num + savedregs_num;
 133
 134         /* XXX QUICK FIX: We shouldn't align the stack in Java code, but
 135            only in native stubs. */
 136         /* align stack to 8-byte */
 137
 138         cd->stackframesize = (cd->stackframesize + 1) & ~1;
 139
 140         /* SECTION: Method Header */
 141         /* create method header */
 142
 143         (void) dseg_add_unique_address(cd, code);              /* CodeinfoPointer */
 144         (void) dseg_add_unique_s4(cd, cd->stackframesize * 4); /* FrameSize       */
 145
 146 #if defined(ENABLE_THREADS)
 147         /* IsSync contains the offset relative to the stack pointer for the
 148            argument of monitor_exit used in the exception handler. Since the
 149            offset could be zero and give a wrong meaning of the flag it is
 150            offset by one.
 151         */
 152
 153         if (checksync && (m->flags & ACC_SYNCHRONIZED))
 154                 (void) dseg_add_unique_s4(cd, (rd->memuse + 1) * 4);/* IsSync         */
 155         else
 156 #endif
 157                 (void) dseg_add_unique_s4(cd, 0);                  /* IsSync          */
 158
 159         (void) dseg_add_unique_s4(cd, jd->isleafmethod);       /* IsLeaf          */
 160         (void) dseg_add_unique_s4(cd, INT_SAV_CNT - rd->savintreguse); /* IntSave */
 161         (void) dseg_add_unique_s4(cd, FLT_SAV_CNT - rd->savfltreguse); /* FltSave */
 162         (void) dseg_addlinenumbertablesize(cd);
 163         (void) dseg_add_unique_s4(cd, jd->exceptiontablelength); /* ExTableSize   */
 164
 165         /* create exception table */
 166
 167         for (ex = jd->exceptiontable; ex != NULL; ex = ex->down) {
 168                 dseg_add_target(cd, ex->start);
 169                 dseg_add_target(cd, ex->end);
 170                 dseg_add_target(cd, ex->handler);
 171                 (void) dseg_add_unique_address(cd, ex->catchtype.any);
 172         }
 173
 174         /* save return address and used callee saved registers */
 175
 176         savedregs_bitmask = 0;
 177
 178         if (!jd->isleafmethod)
 179                 savedregs_bitmask = (1<<REG_LR);
 180
 181         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--)
 182                 savedregs_bitmask |= (1<<(rd->savintregs[i]));
 183
 184 #if !defined(NDEBUG)
 185         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
 186                 log_text("!!! CODEGEN: floating-point callee saved registers are not saved to stack (SEVERE! STACK IS MESSED UP!)");
 187                 /* TODO: floating-point */
 188         }
 189 #endif
 190
 191         if (savedregs_bitmask)
 192                 M_STMFD(savedregs_bitmask, REG_SP);
 193
 194         /* create additional stack frame for spilled variables (if necessary) */
 195
 196         if ((cd->stackframesize - savedregs_num) > 0)
 197                 M_SUB_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize - savedregs_num);
 198
 199         /* take arguments out of register or stack frame */
 200
 201         md = m->parseddesc;
 202         for (i = 0, len = 0; i < md->paramcount; i++) {
 203                 s1 = md->params[i].regoff;
 204                 t = md->paramtypes[i].type;
 205
 206                 varindex = jd->local_map[len * 5 + t];
 207
 208                 len += (IS_2_WORD_TYPE(t)) ? 2 : 1;          /* 2 word type arguments */
 209
 210                 if (varindex == UNUSED)
 211                         continue;
 212
 213                 var = VAR(varindex);
 214
 215                 /* ATTENTION: we use interger registers for all arguments (even float) */
 216 #if !defined(ENABLE_SOFTFLOAT)
 217                 if (IS_INT_LNG_TYPE(t)) {                    /* integer args          */
 218 #endif
 219                         if (!md->params[i].inmemory) {           /* register arguments    */
 220                                 if (!(var->flags & INMEMORY)) {      /* reg arg -> register   */
 221                                         if (GET_LOW_REG(var->vv.regoff) == REG_SPLIT || GET_HIGH_REG(var->vv.regoff) == REG_SPLIT) {
 222                                                 /* TODO: remove this!!! */
 223                                                 dolog("SPLIT in local var: %x>%x (%s.%s)", s1, var->vv.regoff, m->class->name->text, m->name->text);
 224                                                 assert(s1 == var->vv.regoff);
 225                                         }
 226                                         s3 = var->vv.regoff;
 227                                         SPLIT_OPEN(t, s1, REG_ITMP1);
 228                                         SPLIT_LOAD(t, s1, cd->stackframesize);
 229                                         SPLIT_OPEN(t, s3, REG_ITMP1);
 230
 231                                         if (IS_2_WORD_TYPE(t))
 232                                                 M_LNGMOVE(s1, s3);
 233                                         else
 234                                                 M_INTMOVE(s1, s3);
 235
 236                                         SPLIT_STORE_AND_CLOSE(t, s3, cd->stackframesize);
 237                                 }
 238                                 else {                               /* reg arg -> spilled    */
 239                                         SPLIT_OPEN(t, s1, REG_ITMP1);
 240                                         SPLIT_LOAD(t, s1, cd->stackframesize);
 241
 242                                         if (IS_2_WORD_TYPE(t))
 243                                                 M_LST(s1, REG_SP, var->vv.regoff * 4);
 244                                         else
 245                                                 M_IST(s1, REG_SP, var->vv.regoff * 4);
 246                                         /* no SPLIT_CLOSE here because arg is fully spilled now */
 247                                 }
 248                         }
 249                         else {                                   /* stack arguments       */
 250                                 if (!(var->flags & INMEMORY)) {      /* stack arg -> register */
 251                                         if (IS_2_WORD_TYPE(t))
 252                                                 M_LLD(var->vv.regoff, REG_SP, (cd->stackframesize + s1) * 4);
 253                                         else
 254                                                 M_ILD(var->vv.regoff, REG_SP, (cd->stackframesize + s1) * 4);
 255                                 }
 256                                 else {                               /* stack arg -> spilled  */
 257                                         /* Reuse Memory Position on Caller Stack */
 258                                         var->vv.regoff = cd->stackframesize + s1;
 259                                 }
 260                         }
 261 #if !defined(ENABLE_SOFTFLOAT)
 262                 } else {                                     /* floating args         */
 263                         if (!md->params[i].inmemory) {           /* register arguments    */
 264                                 if (!(var->flags & INMEMORY)) {      /* reg arg -> register   */
 265                                         SPLIT_OPEN(t, s1, REG_ITMP1);
 266                                         SPLIT_LOAD(t, s1, cd->stackframesize);
 267                                         M_CAST_INT_TO_FLT_TYPED(t, s1, var->vv.regoff);
 268                                 }
 269                                 else {                               /* reg arg -> spilled    */
 270                                         SPLIT_OPEN(t, s1, REG_ITMP1);
 271                                         SPLIT_LOAD(t, s1, cd->stackframesize);
 272
 273                                         if (IS_2_WORD_TYPE(t))
 274                                                 M_LST(s1, REG_SP, var->vv.regoff * 4);
 275                                         else
 276                                                 M_IST(s1, REG_SP, var->vv.regoff * 4);
 277                                         /* no SPLIT_CLOSE here because arg is fully spilled now */
 278                                 }
 279                         }
 280                         else {                                   /* stack arguments       */
 281                                 if (!(var->flags & INMEMORY)) {      /* stack arg -> register */
 282                                         if (IS_2_WORD_TYPE(t))
 283                                                 M_DLD(var->vv.regoff, REG_SP, (cd->stackframesize + s1) * 4);
 284                                         else
 285                                                 M_FLD(var->vv.regoff, REG_SP, (cd->stackframesize + s1) * 4);
 286                                 }
 287                                 else {                               /* stack arg -> spilled  */
 288                                         /* Reuse Memory Position on Caller Stack */
 289                                         var->vv.regoff = cd->stackframesize + s1;
 290                                 }
 291                         }
 292                 }
 293 #endif /* !defined(ENABLE_SOFTFLOAT) */
 294         }
 295
 296 #if defined(ENABLE_THREADS)
 297         /* call monitorenter function */
 298
 299         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
 300                 /* stack offset for monitor argument */
 301
 302                 s1 = rd->memuse;
 303
 304 # if !defined(NDEBUG)
 305                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 306                         M_STMFD(BITMASK_ARGS, REG_SP);
 307                         s1 += 4;
 308                 }
 309 # endif
 310
 311                 /* get the correct lock object */
 312
 313                 if (m->flags & ACC_STATIC) {
 314                         disp = dseg_add_address(cd, &m->class->object.header);
 315                         M_DSEG_LOAD(REG_A0, disp);
 316                 }
 317                 else {
 318                         emit_nullpointer_check_force(cd, iptr, REG_A0);
 319                 }
 320
 321                 M_STR(REG_A0, REG_SP, s1 * 4);
 322                 disp = dseg_add_functionptr(cd, LOCK_monitor_enter);
 323                 M_DSEG_BRANCH(disp);
 324                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
 325                 M_RECOMPUTE_PV(s1);
 326
 327 # if !defined(NDEBUG)
 328                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
 329                         M_LDMFD(BITMASK_ARGS, REG_SP);
 330 # endif
 331         }
 332 #endif
 333
 334 #if !defined(NDEBUG)
 335         /* call trace function */
 336
 337         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
 338                 emit_verbosecall_enter(jd);
 339 #endif
 340
 341         /* end of header generation */
 342
 343         /* SECTION: ICMD Code Generation */
 344         /* for all basic blocks */
 345
 346         for (bptr = jd->basicblocks; bptr != NULL; bptr = bptr->next) {
 347
 348                 bptr->mpc = (s4) (cd->mcodeptr - cd->mcodebase);
 349
 350                 /* is this basic block reached? */
 351
 352                 if (bptr->flags < BBREACHED)
 353                         continue;
 354
 355                 /* branch resolving */
 356
 357                 codegen_resolve_branchrefs(cd, bptr);
 358
 359                 /* copy interface registers to their destination */
 360
 361                 len = bptr->indepth;
 362
 363                 MCODECHECK(64+len);
 364
 365 #if defined(ENABLE_LSRA)
 366                 if (opt_lsra) {
 367                 while (len) {
 368                         len--;
 369                         var = VAR(bptr->invars[len]);
 370                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 371                                 if (!(var->flags & INMEMORY))
 372                                         d= var->vv.regoff;
 373                                 else
 374                                         d=REG_ITMP1;
 375                                 M_INTMOVE(REG_ITMP1, d);
 376                                 emit_store(jd, NULL, var, d);
 377                         }
 378                 }
 379                 } else {
 380 #endif
 381                 while (len) {
 382                         len--;
 383                         var = VAR(bptr->invars[len]);
 384
 385                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 386                                 d = codegen_reg_of_var(0, var, REG_ITMP1);
 387                                 M_INTMOVE(REG_ITMP1, d);
 388                                 emit_store(jd, NULL, var, d);
 389                         }
 390                         else {
 391                                 assert((var->flags & INOUT));
 392                         }
 393                 }
 394 #if defined(ENABLE_LSRA)
 395                 }
 396 #endif
 397
 398                 /* for all instructions */
 399                 len = bptr->icount;
 400                 currentline = 0;
 401                 for (iptr = bptr->iinstr; len > 0; len--, iptr++) {
 402
 403                         /* add line number */
 404                         if (iptr->line != currentline) {
 405                                 dseg_addlinenumber(cd, iptr->line);
 406                                 currentline = iptr->line;
 407                         }
 408
 409                         MCODECHECK(64);   /* an instruction usually needs < 64 words      */
 410
 411                         /* the big switch */
 412                         switch (iptr->opc) {
 413                 case ICMD_NOP:        /* ... ==> ...                                  */
 414                         break;
 415
 416         /* constant operations ************************************************/
 417
 418                 case ICMD_ICONST:     /* ...  ==> ..., constant                       */
 419
 420                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 421                         ICONST(d, iptr->sx.val.i);
 422                         emit_store_dst(jd, iptr, d);
 423                         break;
 424
 425                 case ICMD_ACONST:     /* ... ==> ..., constant                        */
 426
 427                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 428                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
 429                                 disp = dseg_add_unique_address(cd, NULL);
 430
 431                                 codegen_addpatchref(cd, PATCHER_aconst,
 432                                                     iptr->sx.val.c.ref,
 433                                                                         disp);
 434
 435                                 if (opt_showdisassemble)
 436                                         M_NOP;
 437
 438                                 M_DSEG_LOAD(d, disp);
 439                         }
 440                         else {
 441                                 ICONST(d, (u4) iptr->sx.val.anyptr);
 442                         }
 443                         emit_store_dst(jd, iptr, d);
 444                         break;
 445
 446                 case ICMD_LCONST:     /* ...  ==> ..., constant                       */
 447
 448                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 449                         LCONST(d, iptr->sx.val.l);
 450                         emit_store_dst(jd, iptr, d);
 451                         break;
 452
 453                 case ICMD_FCONST:     /* ...  ==> ..., constant                       */
 454
 455 #if defined(ENABLE_SOFTFLOAT)
 456                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 457                         ICONST(d, iptr->sx.val.i);
 458                         emit_store_dst(jd, iptr, d);
 459 #else
 460                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 461                         FCONST(d, iptr->sx.val.f);
 462                         emit_store_dst(jd, iptr, d);
 463 #endif
 464                         break;
 465
 466                 case ICMD_DCONST:     /* ...  ==> ..., constant                       */
 467
 468 #if defined(ENABLE_SOFTFLOAT)
 469                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 470                         LCONST(d, iptr->sx.val.l);
 471                         emit_store_dst(jd, iptr, d);
 472 #else
 473                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 474                         DCONST(d, iptr->sx.val.d);
 475                         emit_store_dst(jd, iptr, d);
 476 #endif
 477                         break;
 478
 479
 480                 /* load/store/copy/move operations ************************************/
 481
 482                 case ICMD_ILOAD:      /* ...  ==> ..., content of local variable      */
 483                 case ICMD_ALOAD:      /* op1 = local variable                         */
 484                 case ICMD_FLOAD:
 485                 case ICMD_LLOAD:
 486                 case ICMD_DLOAD:
 487                 case ICMD_ISTORE:     /* ..., value  ==> ...                          */
 488                 case ICMD_FSTORE:
 489                 case ICMD_LSTORE:
 490                 case ICMD_DSTORE:
 491                 case ICMD_COPY:
 492                 case ICMD_MOVE:
 493
 494                         emit_copy(jd, iptr);
 495                         break;
 496
 497                 case ICMD_ASTORE:
 498                         if (!(iptr->flags.bits & INS_FLAG_RETADDR))
 499                                 emit_copy(jd, iptr);
 500                         break;
 501
 502                 /* pop operations *****************************************************/
 503
 504                 /* attention: double and longs are only one entry in CACAO ICMDs      */
 505
 506                 case ICMD_POP:        /* ..., value  ==> ...                          */
 507                 case ICMD_POP2:       /* ..., value, value  ==> ...                   */
 508
 509                         break;
 510
 511
 512                 /* integer operations *************************************************/
 513
 514                 case ICMD_INT2BYTE:   /* ..., value  ==> ..., value                   */
 515
 516                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 517                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 518                         M_MOV(d, REG_LSL(s1, 24));
 519                         M_MOV(d, REG_ASR(d, 24));
 520                         emit_store_dst(jd, iptr, d);
 521                         break;
 522
 523                 case ICMD_INT2CHAR:   /* ..., value  ==> ..., value                   */
 524
 525                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 526                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 527                         M_MOV(d, REG_LSL(s1, 16));
 528                         M_MOV(d, REG_LSR(d, 16)); /* ATTENTION: char is unsigned */
 529                         emit_store_dst(jd, iptr, d);
 530                         break;
 531
 532                 case ICMD_INT2SHORT:  /* ..., value  ==> ..., value                   */
 533
 534                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 535                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 536                         M_MOV(d, REG_LSL(s1, 16));
 537                         M_MOV(d, REG_ASR(d, 16));
 538                         emit_store_dst(jd, iptr, d);
 539                         break;
 540
 541                 case ICMD_I2L:        /* ..., value  ==> ..., value                   */
 542
 543                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 544                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 545                         M_INTMOVE(s1, GET_LOW_REG(d));
 546                         M_MOV(GET_HIGH_REG(d), REG_ASR(s1, 31));
 547                         emit_store_dst(jd, iptr, d);
 548                         break;
 549
 550                 case ICMD_L2I:        /* ..., value  ==> ..., value                   */
 551
 552                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 553                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 554                         M_INTMOVE(s1, d);
 555                         emit_store_dst(jd, iptr, d);
 556                         break;
 557
 558                 case ICMD_INEG:       /* ..., value  ==> ..., - value                 */
 559
 560                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 561                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 562                         M_RSB_IMM(d, s1, 0);
 563                         emit_store_dst(jd, iptr, d);
 564                         break;
 565
 566                 case ICMD_LNEG:       /* ..., value  ==> ..., - value                 */
 567
 568                         s1 = emit_load_s1(jd, iptr, REG_ITMP12_PACKED);
 569                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 570                         M_RSB_IMMS(GET_LOW_REG(d), GET_LOW_REG(s1), 0);
 571                         M_RSC_IMM(GET_HIGH_REG(d), GET_HIGH_REG(s1), 0);
 572                         emit_store_dst(jd, iptr, d);
 573                         break;
 574
 575                 case ICMD_IADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 576
 577                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 578                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 579                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 580                         M_ADD(d, s1, s2);
 581                         emit_store_dst(jd, iptr, d);
 582                         break;
 583
 584                 case ICMD_LADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 585
 586                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 587                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 588                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 589                         M_ADD_S(GET_LOW_REG(d), s1, s2);
 590                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 591                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 592                         M_ADC(GET_HIGH_REG(d), s1, s2);
 593                         emit_store_dst(jd, iptr, d);
 594                         break;
 595
 596                 case ICMD_IADDCONST:
 597                 case ICMD_IINC:
 598
 599                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 600                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 601
 602                         if (IS_IMM(iptr->sx.val.i)) {
 603                                 M_ADD_IMM(d, s1, iptr->sx.val.i);
 604                         } else if (IS_IMM(-iptr->sx.val.i)) {
 605                                 M_SUB_IMM(d, s1, (-iptr->sx.val.i));
 606                         } else {
 607                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 608                                 M_ADD(d, s1, REG_ITMP3);
 609                         }
 610
 611                         emit_store_dst(jd, iptr, d);
 612                         break;
 613
 614                 case ICMD_LADDCONST:  /* ..., value  ==> ..., value + constant        */
 615                                       /* sx.val.l = constant                          */
 616
 617                         s3 = iptr->sx.val.l & 0xffffffff;
 618                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 619                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 620                         if (IS_IMM(s3))
 621                                 M_ADD_IMMS(GET_LOW_REG(d), s1, s3);
 622                         else {
 623                                 ICONST(REG_ITMP3, s3);
 624                                 M_ADD_S(GET_LOW_REG(d), s1, REG_ITMP3);
 625                         }
 626                         s3 = iptr->sx.val.l >> 32;
 627                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP2);
 628                         if (IS_IMM(s3))
 629                                 M_ADC_IMM(GET_HIGH_REG(d), s1, s3);
 630                         else {
 631                                 ICONST(REG_ITMP3, s3);
 632                                 M_ADC(GET_HIGH_REG(d), s1, REG_ITMP3);
 633                         }
 634                         emit_store_dst(jd, iptr, d);
 635                         break;
 636
 637                 case ICMD_ISUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 638
 639                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 640                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 641                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 642                         M_SUB(d, s1, s2);
 643                         emit_store_dst(jd, iptr, d);
 644                         break;
 645
 646                 case ICMD_LSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 647
 648                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 649                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 650                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 651                         M_SUB_S(GET_LOW_REG(d), s1, s2);
 652                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 653                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 654                         M_SBC(GET_HIGH_REG(d), s1, s2);
 655                         emit_store_dst(jd, iptr, d);
 656                         break;
 657
 658                 case ICMD_ISUBCONST:  /* ..., value  ==> ..., value + constant        */
 659                                       /* sx.val.i = constant                          */
 660
 661                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 662                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 663                         if (IS_IMM(iptr->sx.val.i))
 664                                 M_SUB_IMM(d, s1, iptr->sx.val.i);
 665                         else {
 666                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 667                                 M_SUB(d, s1, REG_ITMP3);
 668                         }
 669                         emit_store_dst(jd, iptr, d);
 670                         break;
 671
 672                 case ICMD_LSUBCONST:  /* ..., value  ==> ..., value - constant        */
 673                                       /* sx.val.l = constant                          */
 674
 675                         s3 = iptr->sx.val.l & 0xffffffff;
 676                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 677                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 678                         if (IS_IMM(s3))
 679                                 M_SUB_IMMS(GET_LOW_REG(d), s1, s3);
 680                         else {
 681                                 ICONST(REG_ITMP3, s3);
 682                                 M_SUB_S(GET_LOW_REG(d), s1, REG_ITMP3);
 683                         }
 684                         s3 = iptr->sx.val.l >> 32;
 685                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP2);
 686                         if (IS_IMM(s3))
 687                                 M_SBC_IMM(GET_HIGH_REG(d), s1, s3);
 688                         else {
 689                                 ICONST(REG_ITMP3, s3);
 690                                 M_SBC(GET_HIGH_REG(d), s1, REG_ITMP3);
 691                         }
 692                         emit_store_dst(jd, iptr, d);
 693                         break;
 694
 695                 case ICMD_IMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 696
 697                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 698                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 699                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 700                         M_MUL(d, s1, s2);
 701                         emit_store_dst(jd, iptr, d);
 702                         break;
 703
 704                 case ICMD_IDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 705                 case ICMD_IREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 706
 707                         s1 = emit_load_s1(jd, iptr, REG_A0);
 708                         s2 = emit_load_s2(jd, iptr, REG_A1);
 709                         emit_arithmetic_check(cd, iptr, s2);
 710
 711                         /* move arguments into argument registers */
 712                         M_INTMOVE(s1, REG_A0);
 713                         M_INTMOVE(s2, REG_A1);
 714
 715                         /* call builtin function */
 716                         bte = iptr->sx.s23.s3.bte;
 717                         disp = dseg_add_functionptr(cd, bte->fp);
 718                         M_DSEG_BRANCH(disp);
 719
 720                         /* recompute pv */
 721                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
 722                         M_RECOMPUTE_PV(s1);
 723
 724                         /* move result into destination register */
 725                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
 726                         M_INTMOVE(REG_RESULT, d);
 727                         emit_store_dst(jd, iptr, d);
 728                         break;
 729
 730                 case ICMD_LDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 731                 case ICMD_LREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 732
 733                         /* move arguments into argument registers */
 734
 735                         s1 = emit_load_s1(jd, iptr, REG_A0_A1_PACKED);
 736                         s2 = emit_load_s2(jd, iptr, REG_A2_A3_PACKED);
 737                         /* XXX TODO: only do this if arithmetic check is really done! */
 738                         M_ORR(GET_HIGH_REG(s2), GET_LOW_REG(s2), REG_ITMP3);
 739                         emit_arithmetic_check(cd, iptr, REG_ITMP3);
 740
 741                         M_LNGMOVE(s1, REG_A0_A1_PACKED);
 742                         M_LNGMOVE(s2, REG_A2_A3_PACKED);
 743
 744                         /* call builtin function */
 745                         bte = iptr->sx.s23.s3.bte;
 746                         disp = dseg_add_functionptr(cd, bte->fp);
 747                         M_DSEG_BRANCH(disp);
 748
 749                         /* recompute pv */
 750                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
 751                         M_RECOMPUTE_PV(s1);
 752
 753                         /* move result into destination register */
 754                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
 755                         M_LNGMOVE(REG_RESULT_PACKED, d);
 756                         emit_store_dst(jd, iptr, d);
 757                         break;
 758
 759                 case ICMD_IMULPOW2:   /* ..., value  ==> ..., value * (2 ^ constant)  */
 760                                       /* sx.val.i = constant                          */
 761
 762                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 763                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 764                         M_MOV(d, REG_LSL(s1, iptr->sx.val.i));
 765                         emit_store_dst(jd, iptr, d);
 766                         break;
 767
 768                 case ICMD_IDIVPOW2:   /* ..., value  ==> ..., value / (2 ^ constant)  */
 769                                       /* sx.val.i = constant                          */
 770
 771                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 772                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 773                         /* this rounds towards 0 as java likes it */
 774                         M_MOV(REG_ITMP3, REG_ASR(s1, 31));
 775                         M_ADD(REG_ITMP3, s1, REG_LSR(REG_ITMP3, 32 - iptr->sx.val.i));
 776                         M_MOV(d, REG_ASR(REG_ITMP3, iptr->sx.val.i));
 777                         /* this rounds towards nearest, not java style */
 778                         /*M_MOV_S(d, REG_ASR(s1, iptr->sx.val.i));
 779                         M_ADCMI_IMM(d, d, 0);*/
 780                         emit_store_dst(jd, iptr, d);
 781                         break;
 782
 783                 case ICMD_IREMPOW2:   /* ..., value  ==> ..., value % constant        */
 784                                       /* sx.val.i = constant [ (2 ^ x) - 1 ]          */
 785
 786                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 787                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 788                         M_MOV_S(REG_ITMP1, s1);
 789                         M_RSBMI_IMM(REG_ITMP1, REG_ITMP1, 0);
 790                         if (IS_IMM(iptr->sx.val.i))
 791                                 M_AND_IMM(REG_ITMP1, iptr->sx.val.i, d);
 792                         else {
 793                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 794                                 M_AND(REG_ITMP1, REG_ITMP3, d);
 795                         }
 796                         M_RSBMI_IMM(d, d, 0);
 797                         emit_store_dst(jd, iptr, d);
 798                         break;
 799
 800                 case ICMD_ISHL:       /* ..., val1, val2  ==> ..., val1 << val2       */
 801
 802                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 803                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 804                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 805                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 806                         M_MOV(d, REG_LSL_REG(s1, REG_ITMP2));
 807                         emit_store_dst(jd, iptr, d);
 808                         break;
 809
 810                 case ICMD_ISHR:       /* ..., val1, val2  ==> ..., val1 >> val2       */
 811
 812                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 813                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 814                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 815                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 816                         M_MOV(d, REG_ASR_REG(s1, REG_ITMP2));
 817                         emit_store_dst(jd, iptr, d);
 818                         break;
 819
 820                 case ICMD_IUSHR:      /* ..., val1, val2  ==> ..., val1 >>> val2      */
 821
 822                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 823                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 824                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 825                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 826                         M_MOV(d, REG_LSR_REG(s1, REG_ITMP2));
 827                         emit_store_dst(jd, iptr, d);
 828                         break;
 829
 830                 case ICMD_ISHLCONST:  /* ..., value  ==> ..., value << constant       */
 831                                       /* sx.val.i = constant                          */
 832
 833                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 834                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 835                         M_MOV(d, REG_LSL(s1, iptr->sx.val.i & 0x1f));
 836                         emit_store_dst(jd, iptr, d);
 837                         break;
 838
 839                 case ICMD_ISHRCONST:  /* ..., value  ==> ..., value >> constant       */
 840                                       /* sx.val.i = constant                          */
 841
 842                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 843                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 844                         /* we need to check for zero here because arm interprets it as SHR by 32 */
 845                         if ((iptr->sx.val.i & 0x1f) == 0) {
 846                                 M_INTMOVE(s1, d);
 847                         } else {
 848                                 M_MOV(d, REG_ASR(s1, iptr->sx.val.i & 0x1f));
 849                         }
 850                         emit_store_dst(jd, iptr, d);
 851                         break;
 852
 853                 case ICMD_IUSHRCONST: /* ..., value  ==> ..., value >>> constant      */
 854                                       /* sx.val.i = constant                          */
 855
 856                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 857                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 858                         /* we need to check for zero here because arm interprets it as SHR by 32 */
 859                         if ((iptr->sx.val.i & 0x1f) == 0)
 860                                 M_INTMOVE(s1, d);
 861                         else
 862                                 M_MOV(d, REG_LSR(s1, iptr->sx.val.i & 0x1f));
 863                         emit_store_dst(jd, iptr, d);
 864                         break;
 865
 866                 case ICMD_IAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 867
 868                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 869                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 870                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 871                         M_AND(s1, s2, d);
 872                         emit_store_dst(jd, iptr, d);
 873                         break;
 874
 875                 case ICMD_LAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 876
 877                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 878                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 879                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 880                         M_AND(s1, s2, GET_LOW_REG(d));
 881                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 882                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 883                         M_AND(s1, s2, GET_HIGH_REG(d));
 884                         emit_store_dst(jd, iptr, d);
 885                         break;
 886
 887                 case ICMD_IOR:        /* ..., val1, val2  ==> ..., val1 | val2        */
 888
 889                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 890                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 891                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 892                         M_ORR(s1, s2, d);
 893                         emit_store_dst(jd, iptr, d);
 894                         break;
 895
 896                 case ICMD_LOR:       /* ..., val1, val2  ==> ..., val1 | val2        */
 897
 898                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 899                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 900                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 901                         M_ORR(s1, s2, GET_LOW_REG(d));
 902                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 903                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 904                         M_ORR(s1, s2, GET_HIGH_REG(d));
 905                         emit_store_dst(jd, iptr, d);
 906                         break;
 907
 908                 case ICMD_IXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
 909
 910                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 911                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 912                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 913                         M_EOR(s1, s2, d);
 914                         emit_store_dst(jd, iptr, d);
 915                         break;
 916
 917                 case ICMD_LXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
 918
 919                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 920                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 921                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 922                         M_EOR(s1, s2, GET_LOW_REG(d));
 923                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 924                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 925                         M_EOR(s1, s2, GET_HIGH_REG(d));
 926                         emit_store_dst(jd, iptr, d);
 927                         break;
 928
 929
 930         /* floating operations ************************************************/
 931
 932 #if !defined(ENABLE_SOFTFLOAT)
 933
 934                 case ICMD_FNEG:       /* ..., value  ==> ..., - value                 */
 935
 936                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 937                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 938                         M_MNFS(d, s1);
 939                         emit_store_dst(jd, iptr, d);
 940                         break;
 941
 942                 case ICMD_FADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 943
 944                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 945                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 946                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 947                         M_ADFS(d, s1, s2);
 948                         emit_store_dst(jd, iptr, d);
 949                         break;
 950
 951                 case ICMD_FSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 952
 953                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 954                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 955                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 956                         M_SUFS(d, s1, s2);
 957                         emit_store_dst(jd, iptr, d);
 958                         break;
 959
 960                 case ICMD_FMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 961
 962                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 963                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 964                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 965                         M_MUFS(d, s1, s2);
 966                         emit_store_dst(jd, iptr, d);
 967                         break;
 968
 969                 case ICMD_FDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 970                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 971                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 972                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 973                         M_DVFS(d, s1, s2);
 974                         emit_store_dst(jd, iptr, d);
 975                         break;
 976
 977                 /* ATTENTION: Jave does not want IEEE behaviour in FREM, do
 978                    not use this */
 979
 980                 case ICMD_FREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 981
 982                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 983                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 984                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 985                         M_RMFS(d, s1, s2);
 986                         emit_store_dst(jd, iptr, d);
 987                         break;
 988
 989                 case ICMD_DNEG:       /* ..., value  ==> ..., - value                 */
 990
 991                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 992                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 993                         M_MNFD(d, s1);
 994                         emit_store_dst(jd, iptr, d);
 995                         break;
 996
 997                 case ICMD_DADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 998
 999                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1000                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1001                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1002                         M_ADFD(d, s1, s2);
1003                         emit_store_dst(jd, iptr, d);
1004                         break;
1005
1006                 case ICMD_DSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
1007
1008                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1009                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1010                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1011                         M_SUFD(d, s1, s2);
1012                         emit_store_dst(jd, iptr, d);
1013                         break;
1014
1015                 case ICMD_DMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1016
1017                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1018                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1019                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1020                         M_MUFD(d, s1, s2);
1021                         emit_store_dst(jd, iptr, d);
1022                         break;
1023
1024                 case ICMD_DDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1025
1026                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1027                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1028                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1029                         M_DVFD(d, s1, s2);
1030                         emit_store_dst(jd, iptr, d);
1031                         break;
1032
1033                 /* ATTENTION: Jave does not want IEEE behaviour in DREM, do
1034                    not use this */
1035
1036                 case ICMD_DREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
1037
1038                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1039                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1040                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1041                         M_RMFD(d, s1, s2);
1042                         emit_store_dst(jd, iptr, d);
1043                         break;
1044
1045                 case ICMD_I2F:       /* ..., value  ==> ..., (float) value            */
1046
1047                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1048                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1049                         M_FLTS(d, s1);
1050                         emit_store_dst(jd, iptr, d);
1051                         break;
1052
1053                 case ICMD_I2D:       /* ..., value  ==> ..., (double) value           */
1054
1055                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1056                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1057                         M_FLTD(d, s1);
1058                         emit_store_dst(jd, iptr, d);
1059                         break;
1060
1061                 case ICMD_F2I:       /* ..., value  ==> ..., (int) value              */
1062
1063                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1064                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1065                         /* this uses round towards zero, as Java likes it */
1066                         M_FIX(d, s1);
1067                         /* this checks for NaN; to return zero as Java likes it */
1068                         M_CMF(s1, 0x8);
1069                         M_MOVVS_IMM(0, d);
1070                         emit_store_dst(jd, iptr, d);
1071                         break;
1072
1073                 case ICMD_D2I:       /* ..., value  ==> ..., (int) value              */
1074
1075                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1076                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1077                         /* this uses round towards zero, as Java likes it */
1078                         M_FIX(d, s1);
1079                         /* this checks for NaN; to return zero as Java likes it */
1080                         M_CMF(s1, 0x8);
1081                         M_MOVVS_IMM(0, d);
1082                         emit_store_dst(jd, iptr, d);
1083                         break;
1084
1085                 case ICMD_D2F:       /* ..., value  ==> ..., (float) value            */
1086
1087                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1088                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1089                         M_MVFS(d,s1);
1090                         emit_store_dst(jd, iptr, d);
1091                         break;
1092
1093                 case ICMD_F2D:       /* ..., value  ==> ..., (double) value           */
1094
1095                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1096                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1097                         M_MVFD(d,s1);
1098                         emit_store_dst(jd, iptr, d);
1099                         break;
1100
1101                 case ICMD_FCMPG:      /* ..., val1, val2  ==> ..., val1 fcmpg val2    */
1102
1103                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1104                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1105                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1106                         M_CMF(s2, s1);
1107                         M_MOV_IMM(d, 0);
1108                         M_SUBGT_IMM(d, d, 1);
1109                         M_ADDLT_IMM(d, d, 1);
1110                         emit_store_dst(jd, iptr, d);
1111                         break;
1112
1113                 case ICMD_DCMPG:      /* ..., val1, val2  ==> ..., val1 dcmpg val2    */
1114
1115                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1116                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1117                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1118                         M_CMF(s2, s1);
1119                         M_MOV_IMM(d, 0);
1120                         M_SUBGT_IMM(d, d, 1);
1121                         M_ADDLT_IMM(d, d, 1);
1122                         emit_store_dst(jd, iptr, d);
1123                         break;
1124
1125                 case ICMD_FCMPL:      /* ..., val1, val2  ==> ..., val1 fcmpl val2    */
1126
1127                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1128                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1129                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1130                         M_CMF(s1, s2);
1131                         M_MOV_IMM(d, 0);
1132                         M_SUBLT_IMM(d, d, 1);
1133                         M_ADDGT_IMM(d, d, 1);
1134                         emit_store_dst(jd, iptr, d);
1135                         break;
1136
1137                 case ICMD_DCMPL:      /* ..., val1, val2  ==> ..., val1 dcmpl val2    */
1138
1139                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1140                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1141                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1142                         M_CMF(s1, s2);
1143                         M_MOV_IMM(d, 0);
1144                         M_SUBLT_IMM(d, d, 1);
1145                         M_ADDGT_IMM(d, d, 1);
1146                         emit_store_dst(jd, iptr, d);
1147                         break;
1148
1149 #endif /* !defined(ENABLE_SOFTFLOAT) */
1150
1151
1152                 /* memory operations **************************************************/
1153
1154                 case ICMD_ARRAYLENGTH: /* ..., arrayref  ==> ..., length              */
1155
1156                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1157                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1158                         /* implicit null-pointer check */
1159                         M_ILD_INTERN(d, s1, OFFSET(java_arrayheader, size));
1160                         emit_store_dst(jd, iptr, d);
1161                         break;
1162
1163                 case ICMD_BALOAD:     /* ..., arrayref, index  ==> ..., value         */
1164
1165                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1166                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1167                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1168                         /* implicit null-pointer check */
1169                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1170                         M_ADD(REG_ITMP1, s1, s2); /* REG_ITMP1 = s1 + 1 * s2 */
1171                         M_LDRSB(d, REG_ITMP1, OFFSET(java_bytearray, data[0]));
1172                         emit_store_dst(jd, iptr, d);
1173                         break;
1174
1175                 case ICMD_CALOAD:     /* ..., arrayref, index  ==> ..., value         */
1176
1177                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1178                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1179                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1180                         /* implicit null-pointer check */
1181                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1182                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1183                         M_LDRH(d, REG_ITMP1, OFFSET(java_chararray, data[0]));
1184                         emit_store_dst(jd, iptr, d);
1185                         break;
1186
1187                 case ICMD_SALOAD:     /* ..., arrayref, index  ==> ..., value         */
1188
1189                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1190                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1191                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1192                         /* implicit null-pointer check */
1193                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1194                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1195                         M_LDRSH(d, REG_ITMP1, OFFSET(java_shortarray, data[0]));
1196                         emit_store_dst(jd, iptr, d);
1197                         break;
1198
1199                 case ICMD_IALOAD:     /* ..., arrayref, index  ==> ..., value         */
1200
1201                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1202                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1203                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1204                         /* implicit null-pointer check */
1205                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1206                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1207                         M_ILD_INTERN(d, REG_ITMP1, OFFSET(java_intarray, data[0]));
1208                         emit_store_dst(jd, iptr, d);
1209                         break;
1210
1211                 case ICMD_LALOAD:     /* ..., arrayref, index  ==> ..., value         */
1212
1213                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1214                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1215                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1216                         /* implicit null-pointer check */
1217                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1218                         M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1219                         M_LLD_INTERN(d, REG_ITMP3, OFFSET(java_longarray, data[0]));
1220                         emit_store_dst(jd, iptr, d);
1221                         break;
1222
1223                 case ICMD_FALOAD:     /* ..., arrayref, index  ==> ..., value         */
1224
1225                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1226                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1227                         /* implicit null-pointer check */
1228                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1229                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1230 #if !defined(ENABLE_SOFTFLOAT)
1231                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1232                         M_FLD_INTERN(d, REG_ITMP1, OFFSET(java_floatarray, data[0]));
1233 #else
1234                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1235                         M_ILD_INTERN(d, REG_ITMP1, OFFSET(java_floatarray, data[0]));
1236 #endif
1237                         emit_store_dst(jd, iptr, d);
1238                         break;
1239
1240                 case ICMD_DALOAD:     /* ..., arrayref, index  ==> ..., value         */
1241
1242                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1243                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1244                         /* implicit null-pointer check */
1245                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1246                         M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1247 #if !defined(ENABLE_SOFTFLOAT)
1248                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1249                         M_DLD_INTERN(d, REG_ITMP3, OFFSET(java_doublearray, data[0]));
1250 #else
1251                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1252                         M_LLD_INTERN(d, REG_ITMP3, OFFSET(java_doublearray, data[0]));
1253 #endif
1254                         emit_store_dst(jd, iptr, d);
1255                         break;
1256
1257                 case ICMD_AALOAD:     /* ..., arrayref, index  ==> ..., value         */
1258
1259                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1260                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1261                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1262                         /* implicit null-pointer check */
1263                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1264                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1265                         M_LDR_INTERN(d, REG_ITMP1, OFFSET(java_objectarray, data[0]));
1266                         emit_store_dst(jd, iptr, d);
1267                         break;
1268
1269                 case ICMD_BASTORE:    /* ..., arrayref, index, value  ==> ...         */
1270
1271                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1272                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1273                         /* implicit null-pointer check */
1274                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1275                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1276                         M_ADD(REG_ITMP1, s1, s2); /* REG_ITMP1 = s1 + 1 * s2 */
1277                         M_STRB(s3, REG_ITMP1, OFFSET(java_bytearray, data[0]));
1278                         break;
1279
1280                 case ICMD_CASTORE:    /* ..., arrayref, index, value  ==> ...         */
1281
1282                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1283                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1284                         /* implicit null-pointer check */
1285                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1286                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1287                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1288                         M_STRH(s3, REG_ITMP1, OFFSET(java_chararray, data[0]));
1289                         break;
1290
1291                 case ICMD_SASTORE:    /* ..., arrayref, index, value  ==> ...         */
1292
1293                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1294                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1295                         /* implicit null-pointer check */
1296                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1297                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1298                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1299                         M_STRH(s3, REG_ITMP1, OFFSET(java_shortarray, data[0]));
1300                         break;
1301
1302                 case ICMD_IASTORE:    /* ..., arrayref, index, value  ==> ...         */
1303
1304                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1305                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1306                         /* implicit null-pointer check */
1307                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1308                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1309                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1310                         M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_intarray, data[0]));
1311                         break;
1312
1313                 case ICMD_LASTORE:    /* ..., arrayref, index, value  ==> ...         */
1314
1315                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1316                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1317                         /* implicit null-pointer check */
1318                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1319                         M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1320                         s3 = emit_load_s3(jd, iptr, REG_ITMP12_PACKED);
1321                         M_LST_INTERN(s3, REG_ITMP3, OFFSET(java_longarray, data[0]));
1322                         break;
1323
1324                 case ICMD_FASTORE:    /* ..., arrayref, index, value  ==> ...         */
1325
1326                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1327                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1328                         /* implicit null-pointer check */
1329                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1330                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1331 #if !defined(ENABLE_SOFTFLOAT)
1332                         s3 = emit_load_s3(jd, iptr, REG_FTMP1);
1333                         M_FST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray, data[0]));
1334 #else
1335                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1336                         M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray, data[0]));
1337 #endif
1338                         break;
1339
1340                 case ICMD_DASTORE:    /* ..., arrayref, index, value  ==> ...         */
1341
1342                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1343                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1344                         /* implicit null-pointer check */
1345                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1346                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 3)); /* REG_ITMP1 = s1 + 8 * s2 */
1347 #if !defined(ENABLE_SOFTFLOAT)
1348                         s3 = emit_load_s3(jd, iptr, REG_FTMP1);
1349                         M_DST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray, data[0]));
1350 #else
1351                         s3 = emit_load_s3(jd, iptr, REG_ITMP23_PACKED);
1352                         M_LST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray, data[0]));
1353 #endif
1354                         break;
1355
1356                 case ICMD_AASTORE:    /* ..., arrayref, index, value  ==> ...         */
1357
1358                         s1 = emit_load_s1(jd, iptr, REG_A0);
1359                         s2 = emit_load_s2(jd, iptr, REG_ITMP1);
1360                         s3 = emit_load_s3(jd, iptr, REG_A1);
1361
1362                         /* implicit null-pointer check */
1363                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1364
1365                         /* move arguments to argument registers */
1366                         M_INTMOVE(s1, REG_A0);
1367                         M_INTMOVE(s3, REG_A1);
1368
1369                         /* call builtin function */
1370                         disp = dseg_add_functionptr(cd, BUILTIN_canstore);
1371                         M_DSEG_BRANCH(disp);
1372
1373                         /* recompute pv */
1374                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
1375                         M_RECOMPUTE_PV(s1);
1376
1377                         /* check resturn value of builtin */
1378                         emit_exception_check(cd, iptr);
1379
1380                         /* finally store address into array */
1381                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1382                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1383                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1384                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1385                         M_STR_INTERN(s3, REG_ITMP1, OFFSET(java_objectarray, data[0]));
1386                         break;
1387
1388                 case ICMD_GETSTATIC:  /* ...  ==> ..., value                          */
1389
1390                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1391                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1392
1393                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1394
1395                                 disp = dseg_add_unique_address(cd, NULL);
1396
1397                                 codegen_addpatchref(cd, PATCHER_get_putstatic, uf, disp);
1398
1399                                 if (opt_showdisassemble)
1400                                         M_NOP;
1401                         }
1402                         else {
1403                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1404
1405                                 fieldtype = fi->type;
1406
1407                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1408                                         codegen_addpatchref(cd, PATCHER_clinit, fi->class, 0);
1409
1410                                         if (opt_showdisassemble)
1411                                                 M_NOP;
1412                                 }
1413
1414                                 disp = dseg_add_address(cd, &(fi->value));
1415                         }
1416
1417                         M_DSEG_LOAD(REG_ITMP3, disp);
1418                         switch (fieldtype) {
1419                         case TYPE_INT:
1420 #if defined(ENABLE_SOFTFLOAT)
1421                         case TYPE_FLT:
1422 #endif
1423                         case TYPE_ADR:
1424                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1425                                 M_ILD_INTERN(d, REG_ITMP3, 0);
1426                                 break;
1427                         case TYPE_LNG:
1428 #if defined(ENABLE_SOFTFLOAT)
1429                         case TYPE_DBL:
1430 #endif
1431                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1432                                 M_LLD_INTERN(d, REG_ITMP3, 0);
1433                                 break;
1434 #if !defined(ENABLE_SOFTFLOAT)
1435                         case TYPE_FLT:
1436                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1437                                 M_FLD_INTERN(d, REG_ITMP3, 0);
1438                                 break;
1439                         case TYPE_DBL:
1440                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1441                                 M_DLD_INTERN(d, REG_ITMP3, 0);
1442                                 break;
1443 #endif
1444                         default:
1445                                 assert(0);
1446                         }
1447                         emit_store_dst(jd, iptr, d);
1448                         break;
1449
1450                 case ICMD_PUTSTATIC:  /* ..., value  ==> ...                          */
1451
1452                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1453                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1454
1455                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1456
1457                                 disp = dseg_add_unique_address(cd, NULL);
1458
1459                                 codegen_addpatchref(cd, PATCHER_get_putstatic, uf, disp);
1460
1461                                 if (opt_showdisassemble)
1462                                         M_NOP;
1463                         }
1464                         else {
1465                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1466
1467                                 fieldtype = fi->type;
1468
1469                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1470                                         codegen_addpatchref(cd, PATCHER_clinit, fi->class, 0);
1471
1472                                         if (opt_showdisassemble)
1473                                                 M_NOP;
1474                                 }
1475
1476                                 disp = dseg_add_address(cd, &(fi->value));
1477                         }
1478
1479                         M_DSEG_LOAD(REG_ITMP3, disp);
1480                         switch (fieldtype) {
1481                         case TYPE_INT:
1482 #if defined(ENABLE_SOFTFLOAT)
1483                         case TYPE_FLT:
1484 #endif
1485                         case TYPE_ADR:
1486                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1487                                 M_IST_INTERN(s1, REG_ITMP3, 0);
1488                                 break;
1489                         case TYPE_LNG:
1490 #if defined(ENABLE_SOFTFLOAT)
1491                         case TYPE_DBL:
1492 #endif
1493                                 s1 = emit_load_s1(jd, iptr, REG_ITMP12_PACKED);
1494                                 M_LST_INTERN(s1, REG_ITMP3, 0);
1495                                 break;
1496 #if !defined(ENABLE_SOFTFLOAT)
1497                         case TYPE_FLT:
1498                                 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1499                                 M_FST_INTERN(s1, REG_ITMP3, 0);
1500                                 break;
1501                         case TYPE_DBL:
1502                                 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1503                                 M_DST_INTERN(s1, REG_ITMP3, 0);
1504                                 break;
1505 #endif
1506                         default:
1507                                 assert(0);
1508                         }
1509                         break;
1510
1511                 case ICMD_GETFIELD:   /* ..., objectref, value  ==> ...               */
1512
1513                         s1 = emit_load_s1(jd, iptr, REG_ITMP3);
1514                         emit_nullpointer_check(cd, iptr, s1);
1515
1516
1517                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1518                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1519
1520                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1521                         }
1522                         else {
1523                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1524
1525                                 fieldtype = fi->type;
1526                                 disp      = fi->offset;
1527                         }
1528
1529 #if !defined(ENABLE_SOFTFLOAT)
1530                         /* HACK: softnull checks on floats */
1531                         if (!INSTRUCTION_MUST_CHECK(iptr) && IS_FLT_DBL_TYPE(fieldtype))
1532                                 emit_nullpointer_check_force(cd, iptr, s1);
1533 #endif
1534
1535                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1536                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1537
1538                                 codegen_addpatchref(cd, PATCHER_get_putfield, uf, 0);
1539
1540                                 if (opt_showdisassemble)
1541                                         M_NOP;
1542
1543                                 disp = 0;
1544                         }
1545
1546                         switch (fieldtype) {
1547                         case TYPE_INT:
1548 #if defined(ENABLE_SOFTFLOAT)
1549                         case TYPE_FLT:
1550 #endif
1551                         case TYPE_ADR:
1552                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1553                                 M_ILD(d, s1, disp);
1554                                 break;
1555                         case TYPE_LNG:
1556 #if defined(ENABLE_SOFTFLOAT)
1557                         case TYPE_DBL:
1558 #endif
1559                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1560                                 M_LLD(d, s1, disp);
1561                                 break;
1562 #if !defined(ENABLE_SOFTFLOAT)
1563                         case TYPE_FLT:
1564                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1565                                 M_FLD(d, s1, disp);
1566                                 break;
1567                         case TYPE_DBL:
1568                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1569                                 M_DLD(d, s1, disp);
1570                                 break;
1571 #endif
1572                         default:
1573                                 assert(0);
1574                         }
1575                         emit_store_dst(jd, iptr, d);
1576                         break;
1577
1578                 case ICMD_PUTFIELD:   /* ..., objectref, value  ==> ...               */
1579
1580                         s1 = emit_load_s1(jd, iptr, REG_ITMP3);
1581                         emit_nullpointer_check(cd, iptr, s1);
1582
1583                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1584                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1585
1586                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1587                         }
1588                         else {
1589                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1590
1591                                 fieldtype = fi->type;
1592                                 disp      = fi->offset;
1593                         }
1594
1595 #if !defined(ENABLE_SOFTFLOAT)
1596                         /* HACK: softnull checks on floats */
1597                         if (!INSTRUCTION_MUST_CHECK(iptr) && IS_FLT_DBL_TYPE(fieldtype))
1598                                 emit_nullpointer_check_force(cd, iptr, s1);
1599 #endif
1600
1601                         switch (fieldtype) {
1602                         case TYPE_INT:
1603 #if defined(ENABLE_SOFTFLOAT)
1604                         case TYPE_FLT:
1605 #endif
1606                         case TYPE_ADR:
1607                                 s2 = emit_load_s2(jd, iptr, REG_ITMP1);
1608                                 break;
1609 #if defined(ENABLE_SOFTFLOAT)
1610                         case TYPE_DBL: /* fall through */
1611 #endif
1612                         case TYPE_LNG:
1613                                 s2 = emit_load_s2(jd, iptr, REG_ITMP12_PACKED);
1614                                 break;
1615 #if !defined(ENABLE_SOFTFLOAT)
1616                         case TYPE_FLT:
1617                         case TYPE_DBL:
1618                                 s2 = emit_load_s2(jd, iptr, REG_FTMP1);
1619                                 break;
1620 #endif
1621                         default:
1622                                 assert(0);
1623                         }
1624
1625                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1626                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1627
1628                                 codegen_addpatchref(cd, PATCHER_get_putfield, uf, 0);
1629
1630                                 if (opt_showdisassemble)
1631                                         M_NOP;
1632
1633                                 disp = 0;
1634                         }
1635
1636                         switch (fieldtype) {
1637                         case TYPE_INT:
1638 #if defined(ENABLE_SOFTFLOAT)
1639                         case TYPE_FLT:
1640 #endif
1641                         case TYPE_ADR:
1642                                 M_IST(s2, s1, disp);
1643                                 break;
1644                         case TYPE_LNG:
1645 #if defined(ENABLE_SOFTFLOAT)
1646                         case TYPE_DBL:
1647 #endif
1648                                 M_LST(s2, s1, disp);
1649                                 break;
1650 #if !defined(ENABLE_SOFTFLOAT)
1651                         case TYPE_FLT:
1652                                 M_FST(s2, s1, disp);
1653                                 break;
1654                         case TYPE_DBL:
1655                                 M_DST(s2, s1, disp);
1656                                 break;
1657 #endif
1658                         default:
1659                                 assert(0);
1660                         }
1661                         break;
1662
1663
1664                 /* branch operations **************************************************/
1665
1666                 case ICMD_ATHROW:       /* ..., objectref ==> ... (, objectref)       */
1667
1668                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1669                         M_INTMOVE(s1, REG_ITMP1_XPTR);
1670                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1671                                 codegen_addpatchref(cd, PATCHER_athrow_areturn,
1672                                                                         iptr->sx.s23.s2.uc, 0);
1673
1674                                 if (opt_showdisassemble)
1675                                         M_NOP;
1676                         }
1677                         disp = dseg_add_functionptr(cd, asm_handle_exception);
1678                         M_DSEG_LOAD(REG_ITMP3, disp);
1679                         M_MOV(REG_ITMP2_XPC, REG_PC);
1680                         M_MOV(REG_PC, REG_ITMP3);
1681                         M_NOP;              /* nop ensures that XPC is less than the end  */
1682                                             /* of basic block                             */
1683                         break;
1684
1685                 case ICMD_GOTO:         /* ... ==> ...                                */
1686                 case ICMD_RET:
1687
1688                         emit_br(cd, iptr->dst.block);
1689                         break;
1690
1691                 case ICMD_JSR:          /* ... ==> ...                                */
1692
1693                         emit_br(cd, iptr->sx.s23.s3.jsrtarget.block);
1694                         break;
1695
1696                 case ICMD_IFNULL:       /* ..., value ==> ...                         */
1697                 case ICMD_IFNONNULL:
1698
1699                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1700                         M_TEQ_IMM(s1, 0);
1701                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFNULL, BRANCH_OPT_NONE);
1702                         break;
1703
1704                 case ICMD_IFLT:         /* ..., value ==> ...                         */
1705                 case ICMD_IFLE:         /* op1 = target JavaVM pc, val.i = constant   */
1706                 case ICMD_IFGT:
1707                 case ICMD_IFGE:
1708                 case ICMD_IFEQ:
1709                 case ICMD_IFNE:
1710
1711                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1712                         M_COMPARE(s1, iptr->sx.val.i);
1713                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFEQ, BRANCH_OPT_NONE);
1714                         break;
1715
1716                 case ICMD_IF_LEQ:       /* ..., value ==> ...                         */
1717
1718                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1719                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1720                         if (iptr->sx.val.l == 0) {
1721                                 M_ORR_S(s1, s2, REG_ITMP3);
1722                         }
1723                         else {
1724                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1725                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1726                                 M_CMP(s1, REG_ITMP3);*/
1727                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1728                                 M_CMPEQ(s2, REG_ITMP3);
1729                         }
1730                         emit_beq(cd, iptr->dst.block);
1731                         break;
1732
1733                 case ICMD_IF_LLT:       /* ..., value ==> ...                         */
1734
1735                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1736                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1737                         if (iptr->sx.val.l == 0) {
1738                                 /* if high word is less than zero, the whole long is too */
1739                                 M_CMP_IMM(s1, 0);
1740                                 emit_blt(cd, iptr->dst.block);
1741                         }
1742                         else {
1743                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1744                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1745                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1746                                 M_CMP(s1, REG_ITMP3);*/
1747                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1748                                 M_MOVGT_IMM(2, REG_ITMP1);
1749                                 M_MOVEQ_IMM(1, REG_ITMP1);
1750
1751                                 /* low compare: x=x-1(ifLO) */
1752                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1753                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1754                                 M_CMP(s2, REG_ITMP3);*/
1755                                 M_SUBLO_IMM(REG_ITMP1, REG_ITMP1, 1);
1756
1757                                 /* branch if (x LT 1) */
1758                                 M_CMP_IMM(REG_ITMP1, 1);
1759                                 emit_blt(cd, iptr->dst.block);
1760                         }
1761                         break;
1762
1763                 case ICMD_IF_LLE:       /* ..., value ==> ...                         */
1764
1765                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1766                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1767                         if (iptr->sx.val.l == 0) {
1768                                 /* if high word is less than zero, the whole long is too  */
1769                                 M_CMP_IMM(s1, 0);
1770                                 emit_blt(cd, iptr->dst.block);
1771
1772                                 /* ... otherwise the low word has to be zero (tricky!) */
1773                                 M_CMPEQ_IMM(s2, 0);
1774                                 emit_beq(cd, iptr->dst.block);
1775                         }
1776                         else {
1777                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1778                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1779                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1780                                 M_CMP(s1, REG_ITMP3);*/
1781                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1782                                 M_MOVGT_IMM(2, REG_ITMP1);
1783                                 M_MOVEQ_IMM(1, REG_ITMP1);
1784
1785                                 /* low compare: x=x+1(ifHI) */
1786                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1787                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1788                                 M_CMP(s2, REG_ITMP3);*/
1789                                 M_ADDHI_IMM(REG_ITMP1, REG_ITMP1, 1);
1790
1791                                 /* branch if (x LE 1) */
1792                                 M_CMP_IMM(REG_ITMP1, 1);
1793                                 emit_ble(cd, iptr->dst.block);
1794                         }
1795                         break;
1796
1797                 case ICMD_IF_LGE:       /* ..., value ==> ...                         */
1798
1799                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1800                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1801                         if (iptr->sx.val.l == 0) {
1802                                 /* if high word is greater or equal zero, the whole long is too */
1803                                 M_CMP_IMM(s1, 0);
1804                                 emit_bge(cd, iptr->dst.block);
1805                         }
1806                         else {
1807                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1808                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1809                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1810                                 M_CMP(s1, REG_ITMP3);*/
1811                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1812                                 M_MOVGT_IMM(2, REG_ITMP1);
1813                                 M_MOVEQ_IMM(1, REG_ITMP1);
1814
1815                                 /* low compare: x=x-1(ifLO) */
1816                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1817                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1818                                 M_CMP(s2, REG_ITMP3);*/
1819                                 M_SUBLO_IMM(REG_ITMP1, REG_ITMP1, 1);
1820
1821                                 /* branch if (x GE 1) */
1822                                 M_CMP_IMM(REG_ITMP1, 1);
1823                                 emit_bge(cd, iptr->dst.block);
1824                         }
1825                         break;
1826
1827                 case ICMD_IF_LGT:       /* ..., value ==> ...                         */
1828
1829                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1830                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1831 #if 0
1832                         if (iptr->sx.val.l == 0) {
1833                                 /* if high word is greater than zero, the whole long is too */
1834                                 M_CMP_IMM(s1, 0);
1835                                 M_BGT(0);
1836                                 codegen_add_branch_ref(cd, iptr->dst.block);
1837
1838                                 /* ... or high was zero and low is non zero (tricky!) */
1839                                 M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1840                                 M_MOVLT_IMM(1, REG_ITMP3);
1841                                 M_ORR_S(REG_ITMP3, s2, REG_ITMP3);
1842                                 M_BNE(0);
1843                                 codegen_add_branch_ref(cd, iptr->dst.block);
1844                         }
1845                         else {
1846 #endif
1847                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1848                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1849                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1850                                 M_CMP(s1, REG_ITMP3);*/
1851                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1852                                 M_MOVGT_IMM(2, REG_ITMP1);
1853                                 M_MOVEQ_IMM(1, REG_ITMP1);
1854
1855                                 /* low compare: x=x+1(ifHI) */
1856                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1857                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1858                                 M_CMP(s2, REG_ITMP3);*/
1859                                 M_ADDHI_IMM(REG_ITMP1, REG_ITMP1, 1);
1860
1861                                 /* branch if (x GT 1) */
1862                                 M_CMP_IMM(REG_ITMP1, 1);
1863                                 emit_bgt(cd, iptr->dst.block);
1864 #if 0
1865                         }
1866 #endif
1867                         break;
1868
1869                 case ICMD_IF_LNE:       /* ..., value ==> ...                         */
1870
1871                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1872                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1873                         if (iptr->sx.val.l == 0) {
1874                                 M_ORR_S(s1, s2, REG_ITMP3);
1875                         }
1876                         else {
1877                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1878                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1879                                 M_CMP(s1, REG_ITMP3);*/
1880                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1881                                 M_CMPEQ(s2, REG_ITMP3);
1882                         }
1883                         emit_bne(cd, iptr->dst.block);
1884                         break;
1885
1886                 case ICMD_IF_ICMPEQ:    /* ..., value, value ==> ...                  */
1887                 case ICMD_IF_ICMPNE:
1888                 case ICMD_IF_ICMPLT:
1889                 case ICMD_IF_ICMPLE:
1890                 case ICMD_IF_ICMPGT:
1891                 case ICMD_IF_ICMPGE:
1892
1893                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1894                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1895                         M_CMP(s1, s2);
1896                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IF_ICMPEQ, BRANCH_OPT_NONE);
1897                         break;
1898
1899                 case ICMD_IF_ACMPEQ:    /* ..., value, value ==> ...                  */
1900                 case ICMD_IF_ACMPNE:
1901
1902                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1903                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1904                         M_CMP(s1, s2);
1905                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IF_ACMPEQ, BRANCH_OPT_NONE);
1906                         break;
1907
1908                 case ICMD_IF_LCMPEQ:    /* ..., value, value ==> ...                  */
1909                                         /* op1 = target JavaVM pc                     */
1910
1911                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1912                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1913                         M_CMP(s1, s2);
1914
1915                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1916                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1917                         M_CMPEQ(s1, s2);
1918
1919                         emit_beq(cd, iptr->dst.block);
1920                         break;
1921
1922                 case ICMD_IF_LCMPNE:    /* ..., value, value ==> ...                  */
1923                                         /* op1 = target JavaVM pc                     */
1924
1925                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1926                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1927                         M_CMP(s1, s2);
1928
1929                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1930                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1931                         M_CMPEQ(s1, s2);
1932
1933                         emit_bne(cd, iptr->dst.block);
1934                         break;
1935
1936                 case ICMD_IF_LCMPLT:    /* ..., value, value ==> ...                  */
1937                                         /* op1 = target JavaVM pc                     */
1938
1939                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1940                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1941                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1942                         M_CMP(s1, s2);
1943                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1944                         M_MOVGT_IMM(2, REG_ITMP3);
1945                         M_MOVEQ_IMM(1, REG_ITMP3);
1946
1947                         /* low compare: x=x-1(ifLO) */
1948                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1949                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1950                         M_CMP(s1, s2);
1951                         M_SUBLO_IMM(REG_ITMP3, REG_ITMP3, 1);
1952
1953                         /* branch if (x LT 1) */
1954                         M_CMP_IMM(REG_ITMP3, 1);
1955                         emit_blt(cd, iptr->dst.block);
1956                         break;
1957
1958                 case ICMD_IF_LCMPLE:    /* ..., value, value ==> ...                  */
1959                                         /* op1 = target JavaVM pc                     */
1960
1961                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1962                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1963                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1964                         M_CMP(s1, s2);
1965                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1966                         M_MOVGT_IMM(2, REG_ITMP3);
1967                         M_MOVEQ_IMM(1, REG_ITMP3);
1968
1969                         /* low compare: x=x-1(ifLO) */
1970                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1971                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1972                         M_CMP(s1, s2);
1973                         M_ADDHI_IMM(REG_ITMP3, REG_ITMP3, 1);
1974
1975                         /* branch if (x LE 1) */
1976                         M_CMP_IMM(REG_ITMP3, 1);
1977                         emit_ble(cd, iptr->dst.block);
1978                         break;
1979
1980                 case ICMD_IF_LCMPGT:    /* ..., value, value ==> ...                  */
1981                                         /* op1 = target JavaVM pc                     */
1982
1983                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1984                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1985                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1986                         M_CMP(s1, s2);
1987                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1988                         M_MOVGT_IMM(2, REG_ITMP3);
1989                         M_MOVEQ_IMM(1, REG_ITMP3);
1990
1991                         /* low compare: x=x-1(ifLO) */
1992                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1993                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1994                         M_CMP(s1, s2);
1995                         M_ADDHI_IMM(REG_ITMP3, REG_ITMP3, 1);
1996
1997                         /* branch if (x GT 1) */
1998                         M_CMP_IMM(REG_ITMP3, 1);
1999                         emit_bgt(cd, iptr->dst.block);
2000                         break;
2001
2002                 case ICMD_IF_LCMPGE:    /* ..., value, value ==> ...                  */
2003                                         /* op1 = target JavaVM pc                     */
2004
2005                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
2006                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
2007                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
2008                         M_CMP(s1, s2);
2009                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
2010                         M_MOVGT_IMM(2, REG_ITMP3);
2011                         M_MOVEQ_IMM(1, REG_ITMP3);
2012
2013                         /* low compare: x=x-1(ifLO) */
2014                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2015                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
2016                         M_CMP(s1, s2);
2017                         M_SUBLO_IMM(REG_ITMP3, REG_ITMP3, 1);
2018
2019                         /* branch if (x GE 1) */
2020                         M_CMP_IMM(REG_ITMP3, 1);
2021                         emit_bge(cd, iptr->dst.block);
2022                         break;
2023
2024                 case ICMD_TABLESWITCH:  /* ..., index ==> ...                         */
2025                         {
2026                         s4 i, l;
2027                         branch_target_t *table;
2028
2029                         table = iptr->dst.table;
2030
2031                         l = iptr->sx.s23.s2.tablelow;
2032                         i = iptr->sx.s23.s3.tablehigh;
2033
2034                         /* calculate new index (index - low) */
2035                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2036                         if (l  == 0) {
2037                                 M_INTMOVE(s1, REG_ITMP1);
2038                         } else if (IS_IMM(l)) {
2039                                 M_SUB_IMM(REG_ITMP1, s1, l);
2040                         } else {
2041                                 ICONST(REG_ITMP2, l);
2042                                 M_SUB(REG_ITMP1, s1, REG_ITMP2);
2043                         }
2044
2045                         /* range check (index <= high-low) */
2046                         i = i - l + 1;
2047                         M_COMPARE(REG_ITMP1, i-1);
2048                         emit_bugt(cd, table[0].block);
2049
2050                         /* build jump table top down and use address of lowest entry */
2051
2052                         table += i;
2053
2054                         while (--i >= 0) {
2055                                 dseg_add_target(cd, table->block);
2056                                 --table;
2057                         }
2058                         }
2059
2060                         /* length of dataseg after last dseg_add_target is used by load */
2061                         /* TODO: this loads from data-segment */
2062                         M_ADD(REG_ITMP2, REG_PV, REG_LSL(REG_ITMP1, 2));
2063                         M_LDR(REG_PC, REG_ITMP2, -(cd->dseglen));
2064                         break;
2065
2066                 case ICMD_LOOKUPSWITCH: /* ..., key ==> ...                           */
2067                         {
2068                         s4 i;
2069                         lookup_target_t *lookup;
2070
2071                         lookup = iptr->dst.lookup;
2072
2073                         i = iptr->sx.s23.s2.lookupcount;
2074
2075                         /* compare keys */
2076                         MCODECHECK((i<<2)+8);
2077                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2078
2079                         while (--i >= 0) {
2080                                 M_COMPARE(s1, lookup->value);
2081                                 emit_beq(cd, lookup->target.block);
2082                                 lookup++;
2083                         }
2084
2085                         /* default branch */
2086                         emit_br(cd, iptr->sx.s23.s3.lookupdefault.block);
2087                         }
2088                         break;
2089
2090                 case ICMD_FRETURN:      /* ..., retvalue ==> ...                      */
2091
2092 #if !defined(ENABLE_SOFTFLOAT)
2093                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
2094                         M_CAST_FLT_TO_INT_TYPED(VAROP(iptr->s1)->type, s1, REG_RESULT);
2095                         goto ICMD_RETURN_do;
2096 #endif
2097
2098                 case ICMD_IRETURN:      /* ..., retvalue ==> ...                      */
2099
2100                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2101                         M_INTMOVE(s1, REG_RESULT);
2102                         goto ICMD_RETURN_do;
2103
2104                 case ICMD_DRETURN:      /* ..., retvalue ==> ...                      */
2105
2106 #if !defined(ENABLE_SOFTFLOAT)
2107                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
2108                         M_CAST_FLT_TO_INT_TYPED(VAROP(iptr->s1)->type, s1, REG_RESULT_PACKED);
2109                         goto ICMD_RETURN_do;
2110 #endif
2111
2112                 case ICMD_LRETURN:      /* ..., retvalue ==> ...                      */
2113
2114                         s1 = emit_load_s1(jd, iptr, REG_RESULT_PACKED);
2115                         M_LNGMOVE(s1, REG_RESULT_PACKED);
2116                         goto ICMD_RETURN_do;
2117
2118                 case ICMD_ARETURN:      /* ..., retvalue ==> ...                      */
2119
2120                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2121                         M_INTMOVE(s1, REG_RESULT);
2122                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2123                                 codegen_addpatchref(cd, PATCHER_athrow_areturn,
2124                                                                         iptr->sx.s23.s2.uc, 0);
2125
2126                                 if (opt_showdisassemble)
2127                                         M_NOP;
2128                         }
2129                         goto ICMD_RETURN_do;
2130
2131                 case ICMD_RETURN:       /* ...  ==> ...                               */
2132                         ICMD_RETURN_do:
2133
2134 #if !defined(NDEBUG)
2135                         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
2136                                 emit_verbosecall_exit(jd);
2137 #endif
2138
2139 #if defined(ENABLE_THREADS)
2140                         /* call monitorexit function */
2141
2142                         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
2143                                 /* stack offset for monitor argument */
2144
2145                                 s1 = rd->memuse;
2146
2147                                 /* we need to save the proper return value */
2148
2149                                 switch (iptr->opc) {
2150                                 case ICMD_IRETURN:
2151                                 case ICMD_ARETURN:
2152                                 case ICMD_LRETURN:
2153                                 case ICMD_FRETURN: /* XXX TWISTI: is that correct? */
2154                                 case ICMD_DRETURN:
2155                                         M_STMFD(BITMASK_RESULT, REG_SP);
2156                                         s1 += 2;
2157                                         break;
2158                                 }
2159
2160                                 M_LDR(REG_A0, REG_SP, s1 * 4);
2161                                 disp = dseg_add_functionptr(cd, LOCK_monitor_exit);
2162                                 M_DSEG_BRANCH(disp);
2163
2164                                 /* we no longer need PV here, no more loading */
2165                                 /*s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2166                                 M_RECOMPUTE_PV(s1);*/
2167
2168                                 switch (iptr->opc) {
2169                                 case ICMD_IRETURN:
2170                                 case ICMD_ARETURN:
2171                                 case ICMD_LRETURN:
2172                                 case ICMD_FRETURN: /* XXX TWISTI: is that correct? */
2173                                 case ICMD_DRETURN:
2174                                         M_LDMFD(BITMASK_RESULT, REG_SP);
2175                                         break;
2176                                 }
2177                         }
2178 #endif
2179
2180                         /* deallocate stackframe for spilled variables */
2181
2182                         if ((cd->stackframesize - savedregs_num) > 0)
2183                                 M_ADD_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize - savedregs_num);
2184
2185                         /* restore callee saved registers + do return */
2186
2187                         if (savedregs_bitmask) {
2188                                 if (!jd->isleafmethod) {
2189                                         savedregs_bitmask &= ~(1<<REG_LR);
2190                                         savedregs_bitmask |= (1<<REG_PC);
2191                                 }
2192                                 M_LDMFD(savedregs_bitmask, REG_SP);
2193                         }
2194
2195                         /* if LR was not on stack, we need to return manually */
2196
2197                         if (jd->isleafmethod)
2198                                 M_MOV(REG_PC, REG_LR);
2199                         break;
2200
2201                 case ICMD_BUILTIN:      /* ..., arg1, arg2, arg3 ==> ...              */
2202
2203                         bte = iptr->sx.s23.s3.bte;
2204                         md  = bte->md;
2205                         goto ICMD_INVOKE_do;
2206
2207                 case ICMD_INVOKESTATIC: /* ..., [arg1, [arg2 ...]] ==> ...            */
2208                 case ICMD_INVOKESPECIAL:/* ..., objectref, [arg1, [arg2 ...]] ==> ... */
2209                 case ICMD_INVOKEVIRTUAL:/* op1 = arg count, val.a = method pointer    */
2210                 case ICMD_INVOKEINTERFACE:
2211
2212                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2213                                 lm = NULL;
2214                                 um = iptr->sx.s23.s3.um;
2215                                 md = um->methodref->parseddesc.md;
2216                         }
2217                         else {
2218                                 lm = iptr->sx.s23.s3.fmiref->p.method;
2219                                 um = NULL;
2220                                 md = lm->parseddesc;
2221                         }
2222
2223                 ICMD_INVOKE_do:
2224                         /* copy arguments to registers or stack location */
2225
2226                         s3 = md->paramcount;
2227
2228                         MCODECHECK((s3 << 1) + 64);
2229
2230                         for (s3 = s3 - 1; s3 >= 0; s3--) {
2231                                 var = VAR(iptr->sx.s23.s2.args[s3]);
2232                                 d   = md->params[s3].regoff;
2233
2234                                 if (var->flags & PREALLOC) /* argument was precolored? */
2235                                         continue;
2236
2237                                 /* TODO: document me */
2238 #if !defined(ENABLE_SOFTFLOAT)
2239                                 if (IS_INT_LNG_TYPE(var->type)) {
2240 #endif /* !defined(ENABLE_SOFTFLOAT) */
2241                                         if (!md->params[s3].inmemory) {
2242                                                 SPLIT_OPEN(var->type, s1, REG_ITMP2);
2243                                                 s1 = emit_load(jd, iptr, var, d);
2244
2245                                                 if (IS_2_WORD_TYPE(var->type))
2246                                                         M_LNGMOVE(s1, d);
2247                                                 else
2248                                                         M_INTMOVE(s1, d);
2249
2250                                                 SPLIT_STORE_AND_CLOSE(var->type, d, 0);
2251                                         }
2252                                         else {
2253                                                 if (IS_2_WORD_TYPE(var->type)) {
2254                                                         s1 = emit_load(jd, iptr, var, REG_ITMP12_PACKED);
2255                                                         M_LST(s1, REG_SP, d * 4);
2256                                                 }
2257                                                 else {
2258                                                         s1 = emit_load(jd, iptr, var, REG_ITMP1);
2259                                                         M_IST(s1, REG_SP, d * 4);
2260                                                 }
2261                                         }
2262 #if !defined(ENABLE_SOFTFLOAT)
2263                                 }
2264                                 else {
2265                                         if (!md->params[s3].inmemory) {
2266                                                 s1 = emit_load(jd, iptr, var, REG_FTMP1);
2267                                                 SPLIT_OPEN(var->type, d, REG_ITMP1);
2268                                                 M_CAST_FLT_TO_INT_TYPED(var->type, s1, d);
2269                                                 SPLIT_STORE_AND_CLOSE(var->type, d, 0);
2270                                         }
2271                                         else {
2272                                                 s1 = emit_load(jd, iptr, var, REG_FTMP1);
2273                                                 if (IS_2_WORD_TYPE(var->type))
2274                                                         M_DST(s1, REG_SP, d * 4);
2275                                                 else
2276                                                         M_FST(s1, REG_SP, d * 4);
2277                                         }
2278                                 }
2279 #endif /* !defined(ENABLE_SOFTFLOAT) */
2280                         }
2281
2282                         switch (iptr->opc) {
2283                         case ICMD_BUILTIN:
2284                                 disp = dseg_add_functionptr(cd, bte->fp);
2285
2286                                 M_DSEG_LOAD(REG_PV, disp); /* pointer to built-in-function */
2287
2288                                 /* generate the actual call */
2289
2290                                 M_MOV(REG_LR, REG_PC);
2291                                 M_MOV(REG_PC, REG_PV);
2292                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2293                                 M_RECOMPUTE_PV(s1);
2294
2295                                 emit_exception_check(cd, iptr);
2296                                 break;
2297
2298                         case ICMD_INVOKESPECIAL:
2299                                 emit_nullpointer_check(cd, iptr, REG_A0);
2300                                 /* fall through */
2301
2302                         case ICMD_INVOKESTATIC:
2303                                 if (lm == NULL) {
2304                                         disp = dseg_add_unique_address(cd, NULL);
2305
2306                                         codegen_addpatchref(cd, PATCHER_invokestatic_special,
2307                                                                                 um, disp);
2308
2309                                         if (opt_showdisassemble)
2310                                                 M_NOP;
2311                                 }
2312                                 else
2313                                         disp = dseg_add_address(cd, lm->stubroutine);
2314
2315                                 M_DSEG_LOAD(REG_PV, disp);            /* Pointer to method */
2316
2317                                 /* generate the actual call */
2318
2319                                 M_MOV(REG_LR, REG_PC);
2320                                 M_MOV(REG_PC, REG_PV);
2321                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2322                                 M_RECOMPUTE_PV(s1);
2323                                 break;
2324
2325                         case ICMD_INVOKEVIRTUAL:
2326                                 if (lm == NULL) {
2327                                         codegen_addpatchref(cd, PATCHER_invokevirtual, um, 0);
2328
2329                                         if (opt_showdisassemble)
2330                                                 M_NOP;
2331
2332                                         s1 = 0;
2333                                 }
2334                                 else
2335                                         s1 = OFFSET(vftbl_t, table[0]) +
2336                                                 sizeof(methodptr) * lm->vftblindex;
2337
2338                                 /* implicit null-pointer check */
2339                                 M_LDR_INTERN(REG_METHODPTR, REG_A0,
2340                                                          OFFSET(java_objectheader, vftbl));
2341                                 M_LDR_INTERN(REG_PV, REG_METHODPTR, s1);
2342
2343                                 /* generate the actual call */
2344
2345                                 M_MOV(REG_LR, REG_PC);
2346                                 M_MOV(REG_PC, REG_PV);
2347                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2348                                 M_RECOMPUTE_PV(s1);
2349                                 break;
2350
2351                         case ICMD_INVOKEINTERFACE:
2352                                 if (lm == NULL) {
2353                                         codegen_addpatchref(cd, PATCHER_invokeinterface, um, 0);
2354
2355                                         if (opt_showdisassemble)
2356                                                 M_NOP;
2357
2358                                         s1 = 0;
2359                                         s2 = 0;
2360                                 }
2361                                 else {
2362                                         s1 = OFFSET(vftbl_t, interfacetable[0]) -
2363                                                 sizeof(methodptr*) * lm->class->index;
2364                                         s2 = sizeof(methodptr) * (lm - lm->class->methods);
2365                                 }
2366
2367                                 /* implicit null-pointer check */
2368                                 M_LDR_INTERN(REG_METHODPTR, REG_A0,
2369                                                          OFFSET(java_objectheader, vftbl));
2370                                 M_LDR_INTERN(REG_METHODPTR, REG_METHODPTR, s1);
2371                                 M_LDR_INTERN(REG_PV, REG_METHODPTR, s2);
2372
2373                                 /* generate the actual call */
2374
2375                                 M_MOV(REG_LR, REG_PC);
2376                                 M_MOV(REG_PC, REG_PV);
2377                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2378                                 M_RECOMPUTE_PV(s1);
2379                                 break;
2380                         }
2381
2382                         /* store return value */
2383
2384                         d = md->returntype.type;
2385
2386 #if !defined(__SOFTFP__)
2387                         /* TODO: this is only a hack, since we use R0/R1 for float
2388                            return!  this depends on gcc; it is independent from
2389                            our ENABLE_SOFTFLOAT define */
2390                         if (iptr->opc == ICMD_BUILTIN && d != TYPE_VOID && IS_FLT_DBL_TYPE(d)) {
2391 #if 0 && !defined(NDEBUG)
2392                                 dolog("BUILTIN that returns float or double (%s.%s)", m->class->name->text, m->name->text);
2393 #endif
2394                                 /* we cannot use this macro, since it is not defined
2395                                    in ENABLE_SOFTFLOAT M_CAST_FLT_TO_INT_TYPED(d,
2396                                    REG_FRESULT, REG_RESULT_TYPED(d)); */
2397                                 if (IS_2_WORD_TYPE(d)) {
2398                                         DCD(0xed2d8102); /* stfd    f0, [sp, #-8]! */
2399                                         M_LDRD_UPDATE(REG_RESULT_PACKED, REG_SP, 8);
2400                                 } else {
2401                                         DCD(0xed2d0101); /* stfs    f0, [sp, #-4]!*/
2402                                         M_LDR_UPDATE(REG_RESULT, REG_SP, 4);
2403                                 }
2404                         }
2405 #endif
2406
2407                         if (d != TYPE_VOID) {
2408 #if !defined(ENABLE_SOFTFLOAT)
2409                                 if (IS_INT_LNG_TYPE(d)) {
2410 #endif /* !defined(ENABLE_SOFTFLOAT) */
2411                                         if (IS_2_WORD_TYPE(d)) {
2412                                                 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
2413                                                 M_LNGMOVE(REG_RESULT_PACKED, s1);
2414                                         }
2415                                         else {
2416                                                 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2417                                                 M_INTMOVE(REG_RESULT, s1);
2418                                         }
2419
2420 #if !defined(ENABLE_SOFTFLOAT)
2421                                 } else {
2422                                         s1 = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
2423                                         M_CAST_INT_TO_FLT_TYPED(VAROP(iptr->dst)->type, REG_RESULT_TYPED(VAROP(iptr->dst)->type), s1);
2424                                 }
2425 #endif /* !defined(ENABLE_SOFTFLOAT) */
2426
2427                                 emit_store_dst(jd, iptr, s1);
2428                         }
2429                         break;
2430
2431                 case ICMD_CHECKCAST:  /* ..., objectref ==> ..., objectref            */
2432
2433                         if (!(iptr->flags.bits & INS_FLAG_ARRAY)) {
2434                                 /* object type cast-check */
2435
2436                         classinfo *super;
2437                         s4         superindex;
2438
2439                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2440                                 super      = NULL;
2441                                 superindex = 0;
2442                         }
2443                         else {
2444                                 super      = iptr->sx.s23.s3.c.cls;
2445                                 superindex = super->index;
2446                         }
2447
2448                                 if ((super == NULL) || !(super->flags & ACC_INTERFACE))
2449                                         CODEGEN_CRITICAL_SECTION_NEW;
2450
2451                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2452
2453                         /* if class is not resolved, check which code to call */
2454
2455                         if (super == NULL) {
2456                                 M_TST(s1, s1);
2457                                 emit_label_beq(cd, BRANCH_LABEL_1);
2458
2459                                 disp = dseg_add_unique_s4(cd, 0); /* super->flags */
2460                                 codegen_addpatchref(cd, PATCHER_checkcast_instanceof_flags,
2461                                                     iptr->sx.s23.s3.c.ref, disp);
2462
2463                                 if (opt_showdisassemble)
2464                                         M_NOP;
2465
2466                                 M_DSEG_LOAD(REG_ITMP2, disp);
2467                                 disp = dseg_add_s4(cd, ACC_INTERFACE);
2468                                 M_DSEG_LOAD(REG_ITMP3, disp);
2469                                 M_TST(REG_ITMP2, REG_ITMP3);
2470                                 emit_label_beq(cd, BRANCH_LABEL_2);
2471                         }
2472
2473                         /* interface checkcast code */
2474
2475                         if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2476                                 if (super == NULL) {
2477                                         codegen_addpatchref(cd,
2478                                                             PATCHER_checkcast_instanceof_interface,
2479                                                             iptr->sx.s23.s3.c.ref, 0);
2480
2481                                         if (opt_showdisassemble)
2482                                                 M_NOP;
2483                                 }
2484                                 else {
2485                                         M_TST(s1, s1);
2486                                         emit_label_beq(cd, BRANCH_LABEL_3);
2487                                 }
2488
2489                                 M_LDR_INTERN(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2490                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, interfacetablelength));
2491                                 assert(IS_IMM(superindex));
2492                                 M_CMP_IMM(REG_ITMP3, superindex);
2493                                 emit_classcast_check(cd, iptr, BRANCH_LE, REG_ITMP3, s1);
2494
2495                                 s2 = OFFSET(vftbl_t, interfacetable[0]) -
2496                                         superindex * sizeof(methodptr*);
2497
2498                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, s2);
2499                                 M_TST(REG_ITMP3, REG_ITMP3);
2500                                 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_ITMP3, s1);
2501
2502                                 if (super == NULL)
2503                                         emit_label_br(cd, BRANCH_LABEL_4);
2504                                 else
2505                                         emit_label(cd, BRANCH_LABEL_3);
2506                         }
2507
2508                         /* class checkcast code */
2509
2510                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2511                                 if (super == NULL) {
2512                                         emit_label(cd, BRANCH_LABEL_2);
2513
2514                                         disp = dseg_add_unique_address(cd, NULL);
2515
2516                                         codegen_addpatchref(cd, PATCHER_checkcast_instanceof_class,
2517                                                             iptr->sx.s23.s3.c.ref,
2518                                                                                 disp);
2519
2520                                         if (opt_showdisassemble)
2521                                                 M_NOP;
2522                                 }
2523                                 else {
2524                                         disp = dseg_add_address(cd, super->vftbl);
2525
2526                                         M_TST(s1, s1);
2527                                         emit_label_beq(cd, BRANCH_LABEL_5);
2528                                 }
2529
2530                                 M_LDR_INTERN(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2531                                 M_DSEG_LOAD(REG_ITMP3, disp);
2532
2533                                 CODEGEN_CRITICAL_SECTION_START;
2534
2535                                 M_LDR_INTERN(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, baseval));
2536                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, baseval));
2537                                 M_SUB(REG_ITMP2, REG_ITMP2, REG_ITMP3);
2538                                 M_DSEG_LOAD(REG_ITMP3, disp);
2539                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, diffval));
2540
2541                                 CODEGEN_CRITICAL_SECTION_END;
2542
2543                                 M_CMP(REG_ITMP2, REG_ITMP3);
2544                                 emit_classcast_check(cd, iptr, BRANCH_UGT, 0, s1);
2545
2546                                 if (super != NULL)
2547                                         emit_label(cd, BRANCH_LABEL_5);
2548                         }
2549
2550                         if (super == NULL) {
2551                                 emit_label(cd, BRANCH_LABEL_1);
2552                                 emit_label(cd, BRANCH_LABEL_4);
2553                         }
2554
2555                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
2556                         }
2557                         else {
2558                                 /* array type cast-check */
2559
2560                                 s1 = emit_load_s1(jd, iptr, REG_A0);
2561                                 M_INTMOVE(s1, REG_A0);
2562
2563                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2564                                         disp = dseg_add_unique_address(cd, NULL);
2565
2566                                         codegen_addpatchref(cd, PATCHER_builtin_arraycheckcast,
2567                                                                                 iptr->sx.s23.s3.c.ref,
2568                                                                                 disp);
2569
2570                                         if (opt_showdisassemble)
2571                                                 M_NOP;
2572                                 }
2573                                 else
2574                                         disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2575
2576                                 M_DSEG_LOAD(REG_A1, disp);
2577                                 disp = dseg_add_functionptr(cd, BUILTIN_arraycheckcast);
2578                                 M_DSEG_BRANCH(disp);
2579
2580                                 /* recompute pv */
2581                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2582                                 M_RECOMPUTE_PV(disp);
2583
2584                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2585                                 M_TST(REG_RESULT, REG_RESULT);
2586                                 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_RESULT, s1);
2587
2588                                 d = codegen_reg_of_dst(jd, iptr, s1);
2589                         }
2590
2591                         M_INTMOVE(s1, d);
2592                         emit_store_dst(jd, iptr, d);
2593                         break;
2594
2595                 case ICMD_INSTANCEOF: /* ..., objectref ==> ..., intresult            */
2596
2597                         {
2598                         classinfo *super;
2599                         s4         superindex;
2600
2601                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2602                                 super      = NULL;
2603                                 superindex = 0;
2604                         }
2605                         else {
2606                                 super      = iptr->sx.s23.s3.c.cls;
2607                                 superindex = super->index;
2608                         }
2609
2610                         if ((super == NULL) || !(super->flags & ACC_INTERFACE))
2611                                 CODEGEN_CRITICAL_SECTION_NEW;
2612
2613                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2614                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
2615
2616                         if (s1 == d) {
2617                                 M_MOV(REG_ITMP1, s1);
2618                                 s1 = REG_ITMP1;
2619                         }
2620
2621                         /* if class is not resolved, check which code to call */
2622
2623                         if (super == NULL) {
2624                                 M_EOR(d, d, d);
2625
2626                                 M_TST(s1, s1);
2627                                 emit_label_beq(cd, BRANCH_LABEL_1);
2628
2629                                 disp = dseg_add_unique_s4(cd, 0); /* super->flags */
2630                                 codegen_addpatchref(cd, PATCHER_checkcast_instanceof_flags,
2631                                                     iptr->sx.s23.s3.c.ref, disp);
2632
2633                                 if (opt_showdisassemble)
2634                                         M_NOP;
2635
2636                                 M_DSEG_LOAD(REG_ITMP2, disp);
2637                                 disp = dseg_add_s4(cd, ACC_INTERFACE);
2638                                 M_DSEG_LOAD(REG_ITMP3, disp);
2639                                 M_TST(REG_ITMP2, REG_ITMP3);
2640                                 emit_label_beq(cd, BRANCH_LABEL_2);
2641                         }
2642
2643                         /* interface checkcast code */
2644
2645                         if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2646                                 if (super == NULL) {
2647                                         /* If d == REG_ITMP2, then it's destroyed in check
2648                                            code above.  */
2649                                         if (d == REG_ITMP2)
2650                                                 M_EOR(d, d, d);
2651
2652                                         codegen_addpatchref(cd,
2653                                                             PATCHER_checkcast_instanceof_interface,
2654                                                             iptr->sx.s23.s3.c.ref, 0);
2655
2656                                         if (opt_showdisassemble)
2657                                                 M_NOP;
2658                                 }
2659                                 else {
2660                                         M_EOR(d, d, d);
2661                                         M_TST(s1, s1);
2662                                         emit_label_beq(cd, BRANCH_LABEL_3);
2663                                 }
2664
2665                                 M_LDR_INTERN(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
2666                                 M_LDR_INTERN(REG_ITMP3,
2667                                                          REG_ITMP1, OFFSET(vftbl_t, interfacetablelength));
2668                                 assert(IS_IMM(superindex));
2669                                 M_CMP_IMM(REG_ITMP3, superindex);
2670                                 M_BLE(2);
2671
2672                                 s2 = OFFSET(vftbl_t, interfacetable[0]) -
2673                                         superindex * sizeof(methodptr*);
2674
2675                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP1, s2);
2676                                 M_TST(REG_ITMP3, REG_ITMP3);
2677                                 M_MOVNE_IMM(1, d);
2678
2679                                 if (super == NULL)
2680                                         emit_label_br(cd, BRANCH_LABEL_4);
2681                                 else
2682                                         emit_label(cd, BRANCH_LABEL_3);
2683                         }
2684
2685                         /* class checkcast code */
2686
2687                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2688                                 if (super == NULL) {
2689                                         emit_label(cd, BRANCH_LABEL_2);
2690
2691                                         disp = dseg_add_unique_address(cd, NULL);
2692
2693                                         codegen_addpatchref(cd, PATCHER_checkcast_instanceof_class,
2694                                                             iptr->sx.s23.s3.c.ref,
2695                                                                                 disp);
2696
2697                                         if (opt_showdisassemble)
2698                                                 M_NOP;
2699                                 }
2700                                 else {
2701                                         disp = dseg_add_address(cd, super->vftbl);
2702
2703                                         M_EOR(d, d, d);
2704                                         M_TST(s1, s1);
2705                                         emit_label_beq(cd, BRANCH_LABEL_5);
2706                                 }
2707
2708                                 M_LDR_INTERN(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
2709                                 M_DSEG_LOAD(REG_ITMP2, disp);
2710
2711                                 CODEGEN_CRITICAL_SECTION_START;
2712
2713                                 M_LDR_INTERN(REG_ITMP1, REG_ITMP1, OFFSET(vftbl_t, baseval));
2714                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2715                                 M_LDR_INTERN(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2716
2717                                 CODEGEN_CRITICAL_SECTION_END;
2718
2719                                 M_SUB(REG_ITMP1, REG_ITMP1, REG_ITMP3);
2720                                 M_CMP(REG_ITMP1, REG_ITMP2);
2721                                 /* If d == REG_ITMP2, then it's destroyed */
2722                                 if (d == REG_ITMP2)
2723                                         M_EOR(d, d, d);
2724                                 M_MOVLS_IMM(1, d);
2725
2726                                 if (super != NULL)
2727                                         emit_label(cd, BRANCH_LABEL_5);
2728                         }
2729
2730                         if (super == NULL) {
2731                                 emit_label(cd, BRANCH_LABEL_1);
2732                                 emit_label(cd, BRANCH_LABEL_4);
2733                         }
2734
2735                         }
2736
2737                         emit_store_dst(jd, iptr, d);
2738                         break;
2739
2740                 case ICMD_MULTIANEWARRAY:/* ..., cnt1, [cnt2, ...] ==> ..., arrayref  */
2741
2742                         /* copy sizes to stack if necessary  */
2743
2744                         MCODECHECK((iptr->s1.argcount << 1) + 64);
2745
2746                         for (s1 = iptr->s1.argcount; --s1 >= 0; ) {
2747
2748                                 var = VAR(iptr->sx.s23.s2.args[s1]);
2749
2750                                 /* copy SAVEDVAR sizes to stack */
2751
2752                                 if (!(var->flags & PREALLOC)) {
2753                                         s2 = emit_load(jd, iptr, var, REG_ITMP1);
2754                                         M_STR(s2, REG_SP, s1 * 4);
2755                                 }
2756                         }
2757
2758                         /* a0 = dimension count */
2759
2760                         assert(IS_IMM(iptr->s1.argcount));
2761                         M_MOV_IMM(REG_A0, iptr->s1.argcount);
2762
2763                         /* is patcher function set? */
2764
2765                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2766                                 disp = dseg_add_unique_address(cd, NULL);
2767
2768                                 codegen_addpatchref(cd, PATCHER_builtin_multianewarray,
2769                                                                         iptr->sx.s23.s3.c.ref, disp);
2770
2771                                 if (opt_showdisassemble)
2772                                         M_NOP;
2773                         }
2774                         else
2775                                 disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2776
2777                         /* a1 = arraydescriptor */
2778
2779                         M_DSEG_LOAD(REG_A1, disp);
2780
2781                         /* a2 = pointer to dimensions = stack pointer */
2782
2783                         M_INTMOVE(REG_SP, REG_A2);
2784
2785                         /* call builtin_multianewarray here */
2786
2787                         disp = dseg_add_functionptr(cd, BUILTIN_multianewarray);
2788                         M_DSEG_BRANCH(disp);
2789
2790                         /* recompute pv */
2791
2792                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2793                         M_RECOMPUTE_PV(s1);
2794
2795                         /* check for exception before result assignment */
2796
2797                         emit_exception_check(cd, iptr);
2798
2799                         /* get arrayref */
2800
2801                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2802                         M_INTMOVE(REG_RESULT, d);
2803                         emit_store_dst(jd, iptr, d);
2804                         break;
2805
2806                 case ICMD_CHECKNULL:  /* ..., objectref  ==> ..., objectref           */
2807
2808                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2809                         emit_nullpointer_check(cd, iptr, s1);
2810                         break;
2811
2812                 default:
2813                         exceptions_throw_internalerror("Unknown ICMD %d during code generation",
2814                                                                                    iptr->opc);
2815                         return false;
2816                 } /* the big switch */
2817
2818                 } /* for all instructions */
2819
2820         } /* for all basic blocks */
2821
2822         dseg_createlinenumbertable(cd);
2823
2824
2825         /* generate stubs */
2826
2827         emit_patcher_stubs(jd);
2828
2829         /* everything's ok */
2830
2831         return true;
2832 }
2833
2834
2835 /* codegen_emit_stub_compiler **************************************************
2836
2837    Emits a stub routine which calls the compiler.
2838
2839 *******************************************************************************/
2840
2841 void codegen_emit_stub_compiler(jitdata *jd)
2842 {
2843         methodinfo  *m;
2844         codegendata *cd;
2845
2846         /* get required compiler data */
2847
2848         m  = jd->m;
2849         cd = jd->cd;
2850
2851         /* code for the stub */
2852
2853         M_LDR_INTERN(REG_ITMP1, REG_PC, -(2 * 4 + 2 * SIZEOF_VOID_P));
2854         M_LDR_INTERN(REG_PC, REG_PC, -(3 * 4 + 3 * SIZEOF_VOID_P));
2855 }
2856
2857
2858 /* codegen_emit_stub_native ****************************************************
2859
2860    Emits a stub routine which calls a native method.
2861
2862 *******************************************************************************/
2863
2864 void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f)
2865 {
2866         methodinfo  *m;
2867         codeinfo    *code;
2868         codegendata *cd;
2869         s4           nativeparams;
2870         methoddesc  *md;
2871         s4           i, j;
2872         s4           t;
2873         s4           disp, funcdisp, s1, s2;
2874
2875         /* get required compiler data */
2876
2877         m    = jd->m;
2878         code = jd->code;
2879         cd   = jd->cd;
2880
2881         /* initialize variables */
2882
2883         md = m->parseddesc;
2884         nativeparams = (m->flags & ACC_STATIC) ? 2 : 1;
2885
2886         /* calculate stackframe size */
2887
2888         cd->stackframesize =
2889                 1 +                                                /* return address  */
2890                 sizeof(stackframeinfo) / SIZEOF_VOID_P +           /* stackframeinfo  */
2891                 sizeof(localref_table) / SIZEOF_VOID_P +           /* localref_table  */
2892                 nmd->memuse;                                       /* stack arguments */
2893
2894         /* align stack to 8-byte */
2895
2896         cd->stackframesize = (cd->stackframesize + 1) & ~1;
2897
2898         /* create method header */
2899
2900         (void) dseg_add_unique_address(cd, code);              /* CodeinfoPointer */
2901         (void) dseg_add_unique_s4(cd, cd->stackframesize * 4); /* FrameSize       */
2902         (void) dseg_add_unique_s4(cd, 0);                      /* IsSync          */
2903         (void) dseg_add_unique_s4(cd, 0);                      /* IsLeaf          */
2904         (void) dseg_add_unique_s4(cd, 0);                      /* IntSave         */
2905         (void) dseg_add_unique_s4(cd, 0);                      /* FltSave         */
2906         (void) dseg_addlinenumbertablesize(cd);
2907         (void) dseg_add_unique_s4(cd, 0);                      /* ExTableSize     */
2908
2909         /* generate stub code */
2910
2911         M_STMFD(1<<REG_LR, REG_SP);
2912         M_SUB_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize - 1);
2913
2914 #if !defined(NDEBUG)
2915         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
2916                 emit_verbosecall_enter(jd);
2917 #endif
2918
2919         /* get function address (this must happen before the stackframeinfo) */
2920
2921         funcdisp = dseg_add_functionptr(cd, f);
2922
2923 #if !defined(WITH_STATIC_CLASSPATH)
2924         if (f == NULL) {
2925                 codegen_addpatchref(cd, PATCHER_resolve_native, m, funcdisp);
2926
2927                 if (opt_showdisassemble)
2928                         M_NOP;
2929         }
2930 #endif
2931
2932         /* Save integer and float argument registers (these are 4
2933            registers, stack is 8-byte aligned). */
2934
2935         M_STMFD(BITMASK_ARGS, REG_SP);
2936         /* TODO: floating point */
2937
2938         /* create native stackframe info */
2939
2940         assert(IS_IMM(4*4 + cd->stackframesize * 4));
2941         M_ADD_IMM(REG_A0, REG_SP, 4*4 + cd->stackframesize * 4 - SIZEOF_VOID_P);
2942         M_MOV(REG_A1, REG_PV);
2943         M_ADD_IMM(REG_A2, REG_SP, 4*4 + cd->stackframesize * 4);
2944         M_LDR_INTERN(REG_A3, REG_SP, 4*4 + cd->stackframesize * 4 - SIZEOF_VOID_P);
2945         disp = dseg_add_functionptr(cd, codegen_start_native_call);
2946         M_DSEG_BRANCH(disp);
2947
2948         /* recompute pv */
2949
2950         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2951         M_RECOMPUTE_PV(s1);
2952
2953         /* Restore integer and float argument registers (these are 4
2954            registers, stack is 8-byte aligned). */
2955
2956         M_LDMFD(BITMASK_ARGS, REG_SP);
2957         /* TODO: floating point */
2958
2959         /* copy or spill arguments to new locations */
2960         /* ATTENTION: the ARM has only integer argument registers! */
2961
2962         for (i = md->paramcount - 1, j = i + nativeparams; i >= 0; i--, j--) {
2963                 t = md->paramtypes[i].type;
2964
2965                 if (!md->params[i].inmemory) {
2966                         s1 = md->params[i].regoff;
2967                         s2 = nmd->params[j].regoff;
2968
2969                         if (!nmd->params[j].inmemory) {
2970 #if !defined(__ARM_EABI__)
2971                                 SPLIT_OPEN(t, s1, REG_ITMP1);
2972                                 SPLIT_LOAD(t, s1, cd->stackframesize);
2973                                 SPLIT_OPEN(t, s2, REG_ITMP1);
2974 #endif
2975
2976                                 if (IS_2_WORD_TYPE(t))
2977                                         M_LNGMOVE(s1, s2);
2978                                 else
2979                                         M_INTMOVE(s1, s2);
2980
2981 #if !defined(__ARM_EABI__)
2982                                 SPLIT_STORE_AND_CLOSE(t, s2, 0);
2983 #endif
2984                         }
2985                         else {
2986 #if !defined(__ARM_EABI__)
2987                                 SPLIT_OPEN(t, s1, REG_ITMP1);
2988                                 SPLIT_LOAD(t, s1, cd->stackframesize);
2989 #endif
2990
2991                                 if (IS_2_WORD_TYPE(t))
2992                                         M_LST(s1, REG_SP, s2 * 4);
2993                                 else
2994                                         M_IST(s1, REG_SP, s2 * 4);
2995                                 /* no SPLIT_CLOSE here because argument is fully on stack now */
2996                         }
2997                 }
2998                 else {
2999                         s1 = md->params[i].regoff + cd->stackframesize;
3000                         s2 = nmd->params[j].regoff;
3001
3002                         if (IS_2_WORD_TYPE(t)) {
3003                                 M_LLD(REG_ITMP12_PACKED, REG_SP, s1 * 4);
3004                                 M_LST(REG_ITMP12_PACKED, REG_SP, s2 * 4);
3005                         }
3006                         else {
3007                                 M_ILD(REG_ITMP1, REG_SP, s1 * 4);
3008                                 M_IST(REG_ITMP1, REG_SP, s2 * 4);
3009                         }
3010                 }
3011         }
3012
3013         /* put class into second argument register */
3014
3015         if (m->flags & ACC_STATIC) {
3016                 disp = dseg_add_address(cd, m->class);
3017                 M_DSEG_LOAD(REG_A1, disp);
3018         }
3019
3020         /* put env into first argument register */
3021
3022         disp = dseg_add_address(cd, _Jv_env);
3023         M_DSEG_LOAD(REG_A0, disp);
3024
3025         /* do the native function call */
3026
3027         M_DSEG_BRANCH(funcdisp);
3028
3029         /* recompute pv */
3030         /* TODO: this is only needed because of the tracer ... do we
3031            really need it? */
3032
3033         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3034         M_RECOMPUTE_PV(s1);
3035
3036 #if !defined(__SOFTFP__)
3037         /* TODO: this is only a hack, since we use R0/R1 for float return! */
3038         /* this depends on gcc; it is independent from our ENABLE_SOFTFLOAT define */
3039         if (md->returntype.type != TYPE_VOID && IS_FLT_DBL_TYPE(md->returntype.type)) {
3040 #if 0 && !defined(NDEBUG)
3041                 dolog("NATIVESTUB that returns float or double (%s.%s)", m->class->name->text, m->name->text);
3042 #endif
3043                 /* we cannot use this macro, since it is not defined in ENABLE_SOFTFLOAT */
3044                 /* M_CAST_FLT_TO_INT_TYPED(md->returntype.type, REG_FRESULT, REG_RESULT_TYPED(md->returntype.type)); */
3045                 if (IS_2_WORD_TYPE(md->returntype.type)) {
3046                         DCD(0xed2d8102); /* stfd    f0, [sp, #-8]! */
3047                         M_LDRD_UPDATE(REG_RESULT_PACKED, REG_SP, 8);
3048                 } else {
3049                         DCD(0xed2d0101); /* stfs    f0, [sp, #-4]!*/
3050                         M_LDR_UPDATE(REG_RESULT, REG_SP, 4);
3051                 }
3052         }
3053 #endif
3054
3055 #if !defined(NDEBUG)
3056         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
3057                 emit_verbosecall_exit(jd);
3058 #endif
3059
3060         /* remove native stackframe info */
3061         /* TODO: improve this store/load */
3062
3063         M_STMFD(BITMASK_RESULT, REG_SP);
3064
3065         M_ADD_IMM(REG_A0, REG_SP, 2*4 + cd->stackframesize * 4 - SIZEOF_VOID_P);
3066         disp = dseg_add_functionptr(cd, codegen_finish_native_call);
3067         M_DSEG_BRANCH(disp);
3068         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3069         M_RECOMPUTE_PV(s1);
3070
3071         M_MOV(REG_ITMP1_XPTR, REG_RESULT);
3072         M_LDMFD(BITMASK_RESULT, REG_SP);
3073
3074         /* finish stub code, but do not yet return to caller */
3075
3076         M_ADD_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize - 1);
3077         M_LDMFD(1<<REG_LR, REG_SP);
3078
3079         /* check for exception */
3080
3081         M_TST(REG_ITMP1_XPTR, REG_ITMP1_XPTR);
3082         M_MOVEQ(REG_LR, REG_PC);            /* if no exception, return to caller  */
3083
3084         /* handle exception here */
3085
3086         M_SUB_IMM(REG_ITMP2_XPC, REG_LR, 4);/* move fault address into xpc        */
3087
3088         disp = dseg_add_functionptr(cd, asm_handle_nat_exception);
3089         M_DSEG_LOAD(REG_ITMP3, disp);       /* load asm exception handler address */
3090         M_MOV(REG_PC, REG_ITMP3);           /* jump to asm exception handler      */
3091
3092         /* generate patcher stubs */
3093
3094         emit_patcher_stubs(jd);
3095 }
3096
3097
3098 /* asm_debug *******************************************************************
3099
3100    Lazy debugger!
3101
3102 *******************************************************************************/
3103
3104 void asm_debug(int a1, int a2, int a3, int a4)
3105 {
3106         printf("===> i am going to exit after this debugging message!\n");
3107         printf("got asm_debug(%p, %p, %p, %p)\n",(void*)a1,(void*)a2,(void*)a3,(void*)a4);
3108         vm_abort("leave you now");
3109 }
3110
3111
3112 /*
3113  * These are local overrides for various environment variables in Emacs.
3114  * Please do not remove this and leave it at the end of the file, where
3115  * Emacs will automagically detect them.
3116  * ---------------------------------------------------------------------
3117  * Local variables:
3118  * mode: c
3119  * indent-tabs-mode: t
3120  * c-basic-offset: 4
3121  * tab-width: 4
3122  * End:
3123  * vim:noexpandtab:sw=4:ts=4:
3124  */