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 */
  26
  27
  28 #include "config.h"
  29
  30 #include <assert.h>
  31 #include <stdio.h>
  32
  33 #include "vm/types.h"
  34
  35 #include "md-abi.h"
  36
  37 #include "vm/jit/arm/arch.h"
  38 #include "vm/jit/arm/codegen.h"
  39
  40 #include "mm/memory.h"
  41
  42 #include "native/localref.h"
  43 #include "native/native.h"
  44
  45 #include "threads/lock-common.h"
  46
  47 #include "vm/builtin.h"
  48 #include "vm/exceptions.h"
  49 #include "vm/global.h"
  50 #include "vm/vm.h"
  51
  52 #include "vm/jit/abi.h"
  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/linenumbertable.h"
  59 #include "vm/jit/md.h"
  60 #include "vm/jit/methodheader.h"
  61 #include "vm/jit/parse.h"
  62 #include "vm/jit/patcher-common.h"
  63 #include "vm/jit/reg.h"
  64
  65 #if defined(ENABLE_LSRA)
  66 #include "vm/jit/allocator/lsra.h"
  67 #endif
  68
  69 #include "vmcore/loader.h"
  70 #include "vmcore/options.h"
  71
  72
  73 /* codegen_emit ****************************************************************
  74
  75    Generates machine code.
  76
  77 *******************************************************************************/
  78
  79 bool codegen_emit(jitdata *jd)
  80 {
  81         methodinfo         *m;
  82         codeinfo           *code;
  83         codegendata        *cd;
  84         registerdata       *rd;
  85         s4              i, t, len;
  86         s4              s1, s2, s3, d;
  87         s4              disp;
  88         varinfo        *var;
  89         basicblock     *bptr;
  90         instruction    *iptr;
  91
  92         s4              spilledregs_num;
  93         s4              savedregs_num;
  94         u2              savedregs_bitmask;
  95         u2              currentline;
  96
  97         methodinfo         *lm;             /* local methodinfo for ICMD_INVOKE* */
  98         unresolved_method  *um;
  99         builtintable_entry *bte;
 100         methoddesc         *md;
 101         fieldinfo          *fi;
 102         unresolved_field   *uf;
 103         int                 fieldtype;
 104         int                 varindex;
 105
 106         /* get required compiler data */
 107
 108         m    = jd->m;
 109         code = jd->code;
 110         cd   = jd->cd;
 111         rd   = jd->rd;
 112
 113         /* prevent compiler warnings */
 114
 115         lm  = NULL;
 116         um  = NULL;
 117         bte = NULL;
 118
 119         fieldtype = -1;
 120
 121         /* space to save used callee saved registers */
 122
 123         savedregs_num = code_is_leafmethod(code) ? 0 : 1; /* space to save the LR */
 124
 125         savedregs_num += (INT_SAV_CNT - rd->savintreguse);
 126         /*savedregs_num += (FLT_SAV_CNT - rd->savfltreguse);*/
 127         assert((FLT_SAV_CNT - rd->savfltreguse) == 0);
 128
 129         spilledregs_num = rd->memuse;
 130
 131 #if defined(ENABLE_THREADS)        /* space to save argument of monitor_enter */
 132         if (checksync && code_is_synchronized(code))
 133                 spilledregs_num++;
 134 #endif
 135
 136         cd->stackframesize = spilledregs_num * 8 + savedregs_num * 4;
 137
 138         /* XXX QUICK FIX: We shouldn't align the stack in Java code, but
 139            only in native stubs. */
 140         /* align stack to 8-byte */
 141
 142         cd->stackframesize = (cd->stackframesize + 4) & ~4;
 143
 144         /* SECTION: Method Header */
 145         /* create method header */
 146
 147         (void) dseg_add_unique_address(cd, code);              /* CodeinfoPointer */
 148         (void) dseg_add_unique_s4(cd, cd->stackframesize);     /* FrameSize       */
 149
 150         code->synchronizedoffset = rd->memuse * 8;
 151
 152         /* REMOVEME: We still need it for exception handling in assembler. */
 153
 154         if (code_is_leafmethod(code))
 155                 (void) dseg_add_unique_s4(cd, 1);
 156         else
 157                 (void) dseg_add_unique_s4(cd, 0);
 158
 159         (void) dseg_add_unique_s4(cd, INT_SAV_CNT - rd->savintreguse); /* IntSave */
 160         (void) dseg_add_unique_s4(cd, FLT_SAV_CNT - rd->savfltreguse); /* FltSave */
 161
 162         /* save return address and used callee saved registers */
 163
 164         savedregs_bitmask = 0;
 165
 166         if (!code_is_leafmethod(code))
 167                 savedregs_bitmask = (1<<REG_LR);
 168
 169         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--)
 170                 savedregs_bitmask |= (1<<(rd->savintregs[i]));
 171
 172 #if !defined(NDEBUG)
 173         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
 174                 log_text("!!! CODEGEN: floating-point callee saved registers are not saved to stack (SEVERE! STACK IS MESSED UP!)");
 175                 /* TODO: floating-point */
 176         }
 177 #endif
 178
 179         if (savedregs_bitmask)
 180                 M_STMFD(savedregs_bitmask, REG_SP);
 181
 182         /* create additional stack frame for spilled variables (if necessary) */
 183
 184         if ((cd->stackframesize / 4 - savedregs_num) > 0)
 185                 M_SUB_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - savedregs_num);
 186
 187         /* take arguments out of register or stack frame */
 188
 189         md = m->parseddesc;
 190         for (i = 0, len = 0; i < md->paramcount; i++) {
 191                 s1 = md->params[i].regoff;
 192                 t = md->paramtypes[i].type;
 193
 194                 varindex = jd->local_map[len * 5 + t];
 195
 196                 len += (IS_2_WORD_TYPE(t)) ? 2 : 1;          /* 2 word type arguments */
 197
 198                 if (varindex == UNUSED)
 199                         continue;
 200
 201                 var = VAR(varindex);
 202
 203                 /* ATTENTION: we use interger registers for all arguments (even float) */
 204 #if !defined(ENABLE_SOFTFLOAT)
 205                 if (IS_INT_LNG_TYPE(t)) {
 206 #endif
 207                         if (!md->params[i].inmemory) {
 208                                 if (!(var->flags & INMEMORY)) {
 209                                         if (IS_2_WORD_TYPE(t))
 210                                                 M_LNGMOVE(s1, var->vv.regoff);
 211                                         else
 212                                                 M_INTMOVE(s1, var->vv.regoff);
 213                                 }
 214                                 else {
 215                                         if (IS_2_WORD_TYPE(t))
 216                                                 M_LST(s1, REG_SP, var->vv.regoff);
 217                                         else
 218                                                 M_IST(s1, REG_SP, var->vv.regoff);
 219                                 }
 220                         }
 221                         else {                                   /* stack arguments       */
 222                                 if (!(var->flags & INMEMORY)) {      /* stack arg -> register */
 223                                         if (IS_2_WORD_TYPE(t))
 224                                                 M_LLD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 225                                         else
 226                                                 M_ILD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 227                                 }
 228                                 else {                               /* stack arg -> spilled  */
 229                                         /* Reuse Memory Position on Caller Stack */
 230                                         var->vv.regoff = cd->stackframesize + s1;
 231                                 }
 232                         }
 233 #if !defined(ENABLE_SOFTFLOAT)
 234                 }
 235                 else {
 236                         if (!md->params[i].inmemory) {
 237                                 if (!(var->flags & INMEMORY)) {
 238                                         if (IS_2_WORD_TYPE(t))
 239                                                 M_CAST_L2D(s1, var->vv.regoff);
 240                                         else
 241                                                 M_CAST_I2F(s1, var->vv.regoff);
 242                                 }
 243                                 else {
 244                                         if (IS_2_WORD_TYPE(t))
 245                                                 M_LST(s1, REG_SP, var->vv.regoff);
 246                                         else
 247                                                 M_IST(s1, REG_SP, var->vv.regoff);
 248                                 }
 249                         }
 250                         else {
 251                                 if (!(var->flags & INMEMORY)) {
 252                                         if (IS_2_WORD_TYPE(t))
 253                                                 M_DLD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 254                                         else
 255                                                 M_FLD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 256                                 }
 257                                 else {
 258                                         /* Reuse Memory Position on Caller Stack */
 259                                         var->vv.regoff = cd->stackframesize + s1;
 260                                 }
 261                         }
 262                 }
 263 #endif /* !defined(ENABLE_SOFTFLOAT) */
 264         }
 265
 266 #if defined(ENABLE_THREADS)
 267         /* call monitorenter function */
 268
 269         if (checksync && code_is_synchronized(code)) {
 270                 /* stack offset for monitor argument */
 271
 272                 s1 = rd->memuse * 8;
 273
 274 # if !defined(NDEBUG)
 275                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 276                         M_STMFD(BITMASK_ARGS, REG_SP);
 277                         s1 += 4 * 4;
 278                 }
 279 # endif
 280
 281                 /* get the correct lock object */
 282
 283                 if (m->flags & ACC_STATIC) {
 284                         disp = dseg_add_address(cd, &m->class->object.header);
 285                         M_DSEG_LOAD(REG_A0, disp);
 286                 }
 287                 else {
 288                         emit_nullpointer_check_force(cd, iptr, REG_A0);
 289                 }
 290
 291                 M_STR(REG_A0, REG_SP, s1);
 292                 disp = dseg_add_functionptr(cd, LOCK_monitor_enter);
 293                 M_DSEG_BRANCH(disp);
 294                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
 295                 M_RECOMPUTE_PV(s1);
 296
 297 # if !defined(NDEBUG)
 298                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
 299                         M_LDMFD(BITMASK_ARGS, REG_SP);
 300 # endif
 301         }
 302 #endif
 303
 304 #if !defined(NDEBUG)
 305         /* call trace function */
 306
 307         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
 308                 emit_verbosecall_enter(jd);
 309 #endif
 310
 311         /* end of header generation */
 312
 313         /* create replacement points */
 314         REPLACEMENT_POINTS_INIT(cd, jd);
 315
 316         /* SECTION: ICMD Code Generation */
 317         /* for all basic blocks */
 318
 319         for (bptr = jd->basicblocks; bptr != NULL; bptr = bptr->next) {
 320
 321                 bptr->mpc = (s4) (cd->mcodeptr - cd->mcodebase);
 322
 323                 /* is this basic block reached? */
 324
 325                 if (bptr->flags < BBREACHED)
 326                         continue;
 327
 328                 /* branch resolving */
 329
 330                 codegen_resolve_branchrefs(cd, bptr);
 331
 332                 /* handle replacement points */
 333                 REPLACEMENT_POINT_BLOCK_START(cd, bptr);
 334
 335                 /* copy interface registers to their destination */
 336
 337                 len = bptr->indepth;
 338
 339                 MCODECHECK(64+len);
 340
 341 #if defined(ENABLE_LSRA)
 342                 if (opt_lsra) {
 343                 while (len) {
 344                         len--;
 345                         var = VAR(bptr->invars[len]);
 346                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 347                                 if (!(var->flags & INMEMORY))
 348                                         d= var->vv.regoff;
 349                                 else
 350                                         d=REG_ITMP1;
 351                                 M_INTMOVE(REG_ITMP1, d);
 352                                 emit_store(jd, NULL, var, d);
 353                         }
 354                 }
 355                 } else {
 356 #endif
 357                 while (len) {
 358                         len--;
 359                         var = VAR(bptr->invars[len]);
 360
 361                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 362                                 d = codegen_reg_of_var(0, var, REG_ITMP1);
 363                                 M_INTMOVE(REG_ITMP1, d);
 364                                 emit_store(jd, NULL, var, d);
 365                         }
 366                         else {
 367                                 assert((var->flags & INOUT));
 368                         }
 369                 }
 370 #if defined(ENABLE_LSRA)
 371                 }
 372 #endif
 373
 374                 /* for all instructions */
 375                 len = bptr->icount;
 376                 currentline = 0;
 377                 for (iptr = bptr->iinstr; len > 0; len--, iptr++) {
 378
 379                         /* add line number */
 380                         if (iptr->line != currentline) {
 381                                 linenumbertable_list_entry_add(cd, iptr->line);
 382                                 currentline = iptr->line;
 383                         }
 384
 385                         MCODECHECK(64);   /* an instruction usually needs < 64 words      */
 386
 387                 /* the big switch */
 388                 switch (iptr->opc) {
 389
 390                 case ICMD_NOP:        /* ...  ==> ...                                 */
 391                 case ICMD_POP:        /* ..., value  ==> ...                          */
 392                 case ICMD_POP2:       /* ..., value, value  ==> ...                   */
 393                         break;
 394
 395                 /* constant operations ************************************************/
 396
 397                 case ICMD_ICONST:     /* ...  ==> ..., constant                       */
 398
 399                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 400                         ICONST(d, iptr->sx.val.i);
 401                         emit_store_dst(jd, iptr, d);
 402                         break;
 403
 404                 case ICMD_ACONST:     /* ... ==> ..., constant                        */
 405
 406                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 407                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
 408                                 disp = dseg_add_unique_address(cd, NULL);
 409
 410                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
 411                                                     iptr->sx.val.c.ref, disp);
 412
 413                                 M_DSEG_LOAD(d, disp);
 414                         }
 415                         else {
 416                                 ICONST(d, (u4) iptr->sx.val.anyptr);
 417                         }
 418                         emit_store_dst(jd, iptr, d);
 419                         break;
 420
 421                 case ICMD_LCONST:     /* ...  ==> ..., constant                       */
 422
 423                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 424                         LCONST(d, iptr->sx.val.l);
 425                         emit_store_dst(jd, iptr, d);
 426                         break;
 427
 428                 case ICMD_FCONST:     /* ...  ==> ..., constant                       */
 429
 430 #if defined(ENABLE_SOFTFLOAT)
 431                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 432                         ICONST(d, iptr->sx.val.i);
 433                         emit_store_dst(jd, iptr, d);
 434 #else
 435                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 436                         FCONST(d, iptr->sx.val.f);
 437                         emit_store_dst(jd, iptr, d);
 438 #endif
 439                         break;
 440
 441                 case ICMD_DCONST:     /* ...  ==> ..., constant                       */
 442
 443 #if defined(ENABLE_SOFTFLOAT)
 444                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 445                         LCONST(d, iptr->sx.val.l);
 446                         emit_store_dst(jd, iptr, d);
 447 #else
 448                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 449                         DCONST(d, iptr->sx.val.d);
 450                         emit_store_dst(jd, iptr, d);
 451 #endif
 452                         break;
 453
 454
 455                 /* load/store/copy/move operations ************************************/
 456
 457                 case ICMD_ILOAD:      /* ...  ==> ..., content of local variable      */
 458                 case ICMD_ALOAD:      /* op1 = local variable                         */
 459                 case ICMD_FLOAD:
 460                 case ICMD_LLOAD:
 461                 case ICMD_DLOAD:
 462                 case ICMD_ISTORE:     /* ..., value  ==> ...                          */
 463                 case ICMD_FSTORE:
 464                 case ICMD_LSTORE:
 465                 case ICMD_DSTORE:
 466                 case ICMD_COPY:
 467                 case ICMD_MOVE:
 468
 469                         emit_copy(jd, iptr);
 470                         break;
 471
 472                 case ICMD_ASTORE:
 473
 474                         if (!(iptr->flags.bits & INS_FLAG_RETADDR))
 475                                 emit_copy(jd, iptr);
 476                         break;
 477
 478
 479                 /* integer operations *************************************************/
 480
 481                 case ICMD_INT2BYTE:   /* ..., value  ==> ..., value                   */
 482
 483                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 484                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 485                         M_MOV(d, REG_LSL(s1, 24));
 486                         M_MOV(d, REG_ASR(d, 24));
 487                         emit_store_dst(jd, iptr, d);
 488                         break;
 489
 490                 case ICMD_INT2CHAR:   /* ..., value  ==> ..., value                   */
 491
 492                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 493                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 494                         M_MOV(d, REG_LSL(s1, 16));
 495                         M_MOV(d, REG_LSR(d, 16)); /* ATTENTION: char is unsigned */
 496                         emit_store_dst(jd, iptr, d);
 497                         break;
 498
 499                 case ICMD_INT2SHORT:  /* ..., value  ==> ..., value                   */
 500
 501                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 502                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 503                         M_MOV(d, REG_LSL(s1, 16));
 504                         M_MOV(d, REG_ASR(d, 16));
 505                         emit_store_dst(jd, iptr, d);
 506                         break;
 507
 508                 case ICMD_I2L:        /* ..., value  ==> ..., value                   */
 509
 510                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 511                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 512                         M_INTMOVE(s1, GET_LOW_REG(d));
 513                         M_MOV(GET_HIGH_REG(d), REG_ASR(s1, 31));
 514                         emit_store_dst(jd, iptr, d);
 515                         break;
 516
 517                 case ICMD_L2I:        /* ..., value  ==> ..., value                   */
 518
 519                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 520                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 521                         M_INTMOVE(s1, d);
 522                         emit_store_dst(jd, iptr, d);
 523                         break;
 524
 525                 case ICMD_INEG:       /* ..., value  ==> ..., - value                 */
 526
 527                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 528                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 529                         M_RSB_IMM(d, s1, 0);
 530                         emit_store_dst(jd, iptr, d);
 531                         break;
 532
 533                 case ICMD_LNEG:       /* ..., value  ==> ..., - value                 */
 534
 535                         s1 = emit_load_s1(jd, iptr, REG_ITMP12_PACKED);
 536                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 537                         M_RSB_IMMS(GET_LOW_REG(d), GET_LOW_REG(s1), 0);
 538                         M_RSC_IMM(GET_HIGH_REG(d), GET_HIGH_REG(s1), 0);
 539                         emit_store_dst(jd, iptr, d);
 540                         break;
 541
 542                 case ICMD_IADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 543
 544                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 545                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 546                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 547                         M_ADD(d, s1, s2);
 548                         emit_store_dst(jd, iptr, d);
 549                         break;
 550
 551                 case ICMD_LADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 552
 553                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 554                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 555                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 556                         M_ADD_S(GET_LOW_REG(d), s1, s2);
 557                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 558                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 559                         M_ADC(GET_HIGH_REG(d), s1, s2);
 560                         emit_store_dst(jd, iptr, d);
 561                         break;
 562
 563                 case ICMD_IADDCONST:
 564                 case ICMD_IINC:
 565
 566                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 567                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 568
 569                         if (IS_IMM(iptr->sx.val.i)) {
 570                                 M_ADD_IMM(d, s1, iptr->sx.val.i);
 571                         } else if (IS_IMM(-iptr->sx.val.i)) {
 572                                 M_SUB_IMM(d, s1, (-iptr->sx.val.i));
 573                         } else {
 574                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 575                                 M_ADD(d, s1, REG_ITMP3);
 576                         }
 577
 578                         emit_store_dst(jd, iptr, d);
 579                         break;
 580
 581                 case ICMD_LADDCONST:  /* ..., value  ==> ..., value + constant        */
 582                                       /* sx.val.l = constant                          */
 583
 584                         s3 = iptr->sx.val.l & 0xffffffff;
 585                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 586                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 587                         if (IS_IMM(s3))
 588                                 M_ADD_IMMS(GET_LOW_REG(d), s1, s3);
 589                         else {
 590                                 ICONST(REG_ITMP3, s3);
 591                                 M_ADD_S(GET_LOW_REG(d), s1, REG_ITMP3);
 592                         }
 593                         s3 = iptr->sx.val.l >> 32;
 594                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP2);
 595                         if (IS_IMM(s3))
 596                                 M_ADC_IMM(GET_HIGH_REG(d), s1, s3);
 597                         else {
 598                                 ICONST(REG_ITMP3, s3);
 599                                 M_ADC(GET_HIGH_REG(d), s1, REG_ITMP3);
 600                         }
 601                         emit_store_dst(jd, iptr, d);
 602                         break;
 603
 604                 case ICMD_ISUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 605
 606                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 607                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 608                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 609                         M_SUB(d, s1, s2);
 610                         emit_store_dst(jd, iptr, d);
 611                         break;
 612
 613                 case ICMD_LSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 614
 615                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 616                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 617                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 618                         M_SUB_S(GET_LOW_REG(d), s1, s2);
 619                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 620                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 621                         M_SBC(GET_HIGH_REG(d), s1, s2);
 622                         emit_store_dst(jd, iptr, d);
 623                         break;
 624
 625                 case ICMD_ISUBCONST:  /* ..., value  ==> ..., value + constant        */
 626                                       /* sx.val.i = constant                          */
 627
 628                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 629                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 630                         if (IS_IMM(iptr->sx.val.i))
 631                                 M_SUB_IMM(d, s1, iptr->sx.val.i);
 632                         else {
 633                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 634                                 M_SUB(d, s1, REG_ITMP3);
 635                         }
 636                         emit_store_dst(jd, iptr, d);
 637                         break;
 638
 639                 case ICMD_LSUBCONST:  /* ..., value  ==> ..., value - constant        */
 640                                       /* sx.val.l = constant                          */
 641
 642                         s3 = iptr->sx.val.l & 0xffffffff;
 643                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 644                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 645                         if (IS_IMM(s3))
 646                                 M_SUB_IMMS(GET_LOW_REG(d), s1, s3);
 647                         else {
 648                                 ICONST(REG_ITMP3, s3);
 649                                 M_SUB_S(GET_LOW_REG(d), s1, REG_ITMP3);
 650                         }
 651                         s3 = iptr->sx.val.l >> 32;
 652                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP2);
 653                         if (IS_IMM(s3))
 654                                 M_SBC_IMM(GET_HIGH_REG(d), s1, s3);
 655                         else {
 656                                 ICONST(REG_ITMP3, s3);
 657                                 M_SBC(GET_HIGH_REG(d), s1, REG_ITMP3);
 658                         }
 659                         emit_store_dst(jd, iptr, d);
 660                         break;
 661
 662                 case ICMD_IMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 663
 664                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 665                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 666                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 667                         M_MUL(d, s1, s2);
 668                         emit_store_dst(jd, iptr, d);
 669                         break;
 670
 671                 case ICMD_IDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 672                 case ICMD_IREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 673
 674                         s1 = emit_load_s1(jd, iptr, REG_A0);
 675                         s2 = emit_load_s2(jd, iptr, REG_A1);
 676                         emit_arithmetic_check(cd, iptr, s2);
 677
 678                         /* move arguments into argument registers */
 679                         M_INTMOVE(s1, REG_A0);
 680                         M_INTMOVE(s2, REG_A1);
 681
 682                         /* call builtin function */
 683                         bte = iptr->sx.s23.s3.bte;
 684                         disp = dseg_add_functionptr(cd, bte->fp);
 685                         M_DSEG_BRANCH(disp);
 686
 687                         /* recompute pv */
 688                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
 689                         M_RECOMPUTE_PV(s1);
 690
 691                         /* move result into destination register */
 692                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
 693                         M_INTMOVE(REG_RESULT, d);
 694                         emit_store_dst(jd, iptr, d);
 695                         break;
 696
 697                 case ICMD_LDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 698                 case ICMD_LREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 699
 700                         /* move arguments into argument registers */
 701
 702                         s1 = emit_load_s1(jd, iptr, REG_A0_A1_PACKED);
 703                         s2 = emit_load_s2(jd, iptr, REG_A2_A3_PACKED);
 704                         /* XXX TODO: only do this if arithmetic check is really done! */
 705                         M_ORR(GET_HIGH_REG(s2), GET_LOW_REG(s2), REG_ITMP3);
 706                         emit_arithmetic_check(cd, iptr, REG_ITMP3);
 707
 708                         M_LNGMOVE(s1, REG_A0_A1_PACKED);
 709                         M_LNGMOVE(s2, REG_A2_A3_PACKED);
 710
 711                         /* call builtin function */
 712                         bte = iptr->sx.s23.s3.bte;
 713                         disp = dseg_add_functionptr(cd, bte->fp);
 714                         M_DSEG_BRANCH(disp);
 715
 716                         /* recompute pv */
 717                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
 718                         M_RECOMPUTE_PV(s1);
 719
 720                         /* move result into destination register */
 721                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
 722                         M_LNGMOVE(REG_RESULT_PACKED, d);
 723                         emit_store_dst(jd, iptr, d);
 724                         break;
 725
 726                 case ICMD_IMULPOW2:   /* ..., value  ==> ..., value * (2 ^ constant)  */
 727                                       /* sx.val.i = constant                          */
 728
 729                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 730                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 731                         M_MOV(d, REG_LSL(s1, iptr->sx.val.i));
 732                         emit_store_dst(jd, iptr, d);
 733                         break;
 734
 735                 case ICMD_IDIVPOW2:   /* ..., value  ==> ..., value / (2 ^ constant)  */
 736                                       /* sx.val.i = constant                          */
 737
 738                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 739                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 740                         /* this rounds towards 0 as java likes it */
 741                         M_MOV(REG_ITMP3, REG_ASR(s1, 31));
 742                         M_ADD(REG_ITMP3, s1, REG_LSR(REG_ITMP3, 32 - iptr->sx.val.i));
 743                         M_MOV(d, REG_ASR(REG_ITMP3, iptr->sx.val.i));
 744                         /* this rounds towards nearest, not java style */
 745                         /*M_MOV_S(d, REG_ASR(s1, iptr->sx.val.i));
 746                         M_ADCMI_IMM(d, d, 0);*/
 747                         emit_store_dst(jd, iptr, d);
 748                         break;
 749
 750                 case ICMD_IREMPOW2:   /* ..., value  ==> ..., value % constant        */
 751                                       /* sx.val.i = constant [ (2 ^ x) - 1 ]          */
 752
 753                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 754                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 755                         M_MOV_S(REG_ITMP1, s1);
 756                         M_RSBMI_IMM(REG_ITMP1, REG_ITMP1, 0);
 757                         if (IS_IMM(iptr->sx.val.i))
 758                                 M_AND_IMM(REG_ITMP1, iptr->sx.val.i, d);
 759                         else {
 760                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 761                                 M_AND(REG_ITMP1, REG_ITMP3, d);
 762                         }
 763                         M_RSBMI_IMM(d, d, 0);
 764                         emit_store_dst(jd, iptr, d);
 765                         break;
 766
 767                 case ICMD_ISHL:       /* ..., val1, val2  ==> ..., val1 << val2       */
 768
 769                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 770                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 771                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 772                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 773                         M_MOV(d, REG_LSL_REG(s1, REG_ITMP2));
 774                         emit_store_dst(jd, iptr, d);
 775                         break;
 776
 777                 case ICMD_ISHR:       /* ..., val1, val2  ==> ..., val1 >> val2       */
 778
 779                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 780                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 781                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 782                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 783                         M_MOV(d, REG_ASR_REG(s1, REG_ITMP2));
 784                         emit_store_dst(jd, iptr, d);
 785                         break;
 786
 787                 case ICMD_IUSHR:      /* ..., val1, val2  ==> ..., val1 >>> val2      */
 788
 789                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 790                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 791                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 792                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 793                         M_MOV(d, REG_LSR_REG(s1, REG_ITMP2));
 794                         emit_store_dst(jd, iptr, d);
 795                         break;
 796
 797                 case ICMD_ISHLCONST:  /* ..., value  ==> ..., value << constant       */
 798                                       /* sx.val.i = constant                          */
 799
 800                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 801                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 802                         M_MOV(d, REG_LSL(s1, iptr->sx.val.i & 0x1f));
 803                         emit_store_dst(jd, iptr, d);
 804                         break;
 805
 806                 case ICMD_ISHRCONST:  /* ..., value  ==> ..., value >> constant       */
 807                                       /* sx.val.i = constant                          */
 808
 809                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 810                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 811                         /* we need to check for zero here because arm interprets it as SHR by 32 */
 812                         if ((iptr->sx.val.i & 0x1f) == 0) {
 813                                 M_INTMOVE(s1, d);
 814                         } else {
 815                                 M_MOV(d, REG_ASR(s1, iptr->sx.val.i & 0x1f));
 816                         }
 817                         emit_store_dst(jd, iptr, d);
 818                         break;
 819
 820                 case ICMD_IUSHRCONST: /* ..., value  ==> ..., value >>> constant      */
 821                                       /* sx.val.i = constant                          */
 822
 823                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 824                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 825                         /* we need to check for zero here because arm interprets it as SHR by 32 */
 826                         if ((iptr->sx.val.i & 0x1f) == 0)
 827                                 M_INTMOVE(s1, d);
 828                         else
 829                                 M_MOV(d, REG_LSR(s1, iptr->sx.val.i & 0x1f));
 830                         emit_store_dst(jd, iptr, d);
 831                         break;
 832
 833                 case ICMD_IAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 834
 835                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 836                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 837                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 838                         M_AND(s1, s2, d);
 839                         emit_store_dst(jd, iptr, d);
 840                         break;
 841
 842                 case ICMD_LAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 843
 844                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 845                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 846                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 847                         M_AND(s1, s2, GET_LOW_REG(d));
 848                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 849                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 850                         M_AND(s1, s2, GET_HIGH_REG(d));
 851                         emit_store_dst(jd, iptr, d);
 852                         break;
 853
 854                 case ICMD_IOR:        /* ..., val1, val2  ==> ..., val1 | val2        */
 855
 856                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 857                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 858                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 859                         M_ORR(s1, s2, d);
 860                         emit_store_dst(jd, iptr, d);
 861                         break;
 862
 863                 case ICMD_LOR:       /* ..., val1, val2  ==> ..., val1 | val2        */
 864
 865                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 866                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 867                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 868                         M_ORR(s1, s2, GET_LOW_REG(d));
 869                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 870                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 871                         M_ORR(s1, s2, GET_HIGH_REG(d));
 872                         emit_store_dst(jd, iptr, d);
 873                         break;
 874
 875                 case ICMD_IXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
 876
 877                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 878                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 879                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 880                         M_EOR(s1, s2, d);
 881                         emit_store_dst(jd, iptr, d);
 882                         break;
 883
 884                 case ICMD_LXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
 885
 886                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 887                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 888                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 889                         M_EOR(s1, s2, GET_LOW_REG(d));
 890                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 891                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 892                         M_EOR(s1, s2, GET_HIGH_REG(d));
 893                         emit_store_dst(jd, iptr, d);
 894                         break;
 895
 896
 897         /* floating operations ************************************************/
 898
 899 #if !defined(ENABLE_SOFTFLOAT)
 900
 901                 case ICMD_FNEG:       /* ..., value  ==> ..., - value                 */
 902
 903                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 904                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 905                         M_FNEG(s1, d);
 906                         emit_store_dst(jd, iptr, d);
 907                         break;
 908
 909                 case ICMD_FADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 910
 911                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 912                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 913                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 914                         M_FADD(s1, s2, d);
 915                         emit_store_dst(jd, iptr, d);
 916                         break;
 917
 918                 case ICMD_FSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 919
 920                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 921                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 922                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 923                         M_FSUB(s1, s2, d);
 924                         emit_store_dst(jd, iptr, d);
 925                         break;
 926
 927                 case ICMD_FMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 928
 929                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 930                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 931                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 932                         M_FMUL(s1, s2, d);
 933                         emit_store_dst(jd, iptr, d);
 934                         break;
 935
 936                 case ICMD_FDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 937                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 938                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 939                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 940                         M_FDIV(s1, s2, d);
 941                         emit_store_dst(jd, iptr, d);
 942                         break;
 943
 944                 /* ATTENTION: Jave does not want IEEE behaviour in FREM, do
 945                    not use this */
 946
 947 #if 0
 948                 case ICMD_FREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 949
 950                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 951                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 952                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 953                         M_RMFS(d, s1, s2);
 954                         emit_store_dst(jd, iptr, d);
 955                         break;
 956 #endif
 957
 958                 case ICMD_DNEG:       /* ..., value  ==> ..., - value                 */
 959
 960                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 961                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 962                         M_DNEG(s1, d);
 963                         emit_store_dst(jd, iptr, d);
 964                         break;
 965
 966                 case ICMD_DADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 967
 968                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 969                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 970                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 971                         M_DADD(s1, s2, d);
 972                         emit_store_dst(jd, iptr, d);
 973                         break;
 974
 975                 case ICMD_DSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 976
 977                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 978                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 979                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 980                         M_DSUB(s1, s2, d);
 981                         emit_store_dst(jd, iptr, d);
 982                         break;
 983
 984                 case ICMD_DMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 985
 986                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 987                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 988                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 989                         M_DMUL(s1, s2, d);
 990                         emit_store_dst(jd, iptr, d);
 991                         break;
 992
 993                 case ICMD_DDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 994
 995                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 996                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 997                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 998                         M_DDIV(s1, s2, d);
 999                         emit_store_dst(jd, iptr, d);
1000                         break;
1001
1002                 /* ATTENTION: Jave does not want IEEE behaviour in DREM, do
1003                    not use this */
1004
1005 #if 0
1006                 case ICMD_DREM:       /* ..., 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_RMFD(d, s1, s2);
1012                         emit_store_dst(jd, iptr, d);
1013                         break;
1014 #endif
1015
1016                 case ICMD_I2F:       /* ..., value  ==> ..., (float) value            */
1017
1018                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1019                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1020                         M_CVTIF(s1, d);
1021                         emit_store_dst(jd, iptr, d);
1022                         break;
1023
1024                 case ICMD_I2D:       /* ..., value  ==> ..., (double) value           */
1025
1026                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1027                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1028                         M_CVTID(s1, d);
1029                         emit_store_dst(jd, iptr, d);
1030                         break;
1031
1032                 case ICMD_F2I:       /* ..., value  ==> ..., (int) value              */
1033
1034                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1035                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1036                         /* this uses round towards zero, as Java likes it */
1037                         M_CVTFI(s1, d);
1038 #if !defined(__VFP_FP__)
1039                         /* this checks for NaN; to return zero as Java likes it */
1040                         M_FCMP(s1, 0x8);
1041                         M_MOVVS_IMM(0, d);
1042 #endif
1043                         emit_store_dst(jd, iptr, d);
1044                         break;
1045
1046                 case ICMD_D2I:       /* ..., value  ==> ..., (int) value              */
1047
1048                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1049                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1050                         /* this uses round towards zero, as Java likes it */
1051                         M_CVTDI(s1, d);
1052 #if !defined(__VFP_FP__)
1053                         /* this checks for NaN; to return zero as Java likes it */
1054                         M_DCMP(s1, 0x8);
1055                         M_MOVVS_IMM(0, d);
1056 #endif
1057                         emit_store_dst(jd, iptr, d);
1058                         break;
1059
1060                 case ICMD_D2F:       /* ..., value  ==> ..., (float) value            */
1061
1062                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1063                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1064                         M_CVTDF(s1, d);
1065                         emit_store_dst(jd, iptr, d);
1066                         break;
1067
1068                 case ICMD_F2D:       /* ..., value  ==> ..., (double) value           */
1069
1070                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1071                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1072                         M_CVTFD(s1, d);
1073                         emit_store_dst(jd, iptr, d);
1074                         break;
1075
1076                 case ICMD_FCMPG:      /* ..., val1, val2  ==> ..., val1 fcmpg val2    */
1077
1078                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1079                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1080                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1081                         M_FCMP(s2, s1);
1082                         M_MOV_IMM(d, 0);
1083 #if defined(__VFP_FP__)
1084                         M_FMSTAT; /* on VFP we need to transfer the flags */
1085 #endif
1086                         M_SUBGT_IMM(d, d, 1);
1087                         M_ADDLT_IMM(d, d, 1);
1088                         emit_store_dst(jd, iptr, d);
1089                         break;
1090
1091                 case ICMD_DCMPG:      /* ..., val1, val2  ==> ..., val1 dcmpg val2    */
1092
1093                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1094                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1095                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1096                         M_DCMP(s2, s1);
1097                         M_MOV_IMM(d, 0);
1098 #if defined(__VFP_FP__)
1099                         M_FMSTAT; /* on VFP we need to transfer the flags */
1100 #endif
1101                         M_SUBGT_IMM(d, d, 1);
1102                         M_ADDLT_IMM(d, d, 1);
1103                         emit_store_dst(jd, iptr, d);
1104                         break;
1105
1106                 case ICMD_FCMPL:      /* ..., val1, val2  ==> ..., val1 fcmpl val2    */
1107
1108                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1109                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1110                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1111                         M_FCMP(s1, s2);
1112                         M_MOV_IMM(d, 0);
1113 #if defined(__VFP_FP__)
1114                         M_FMSTAT; /* on VFP we need to transfer the flags */
1115 #endif
1116                         M_SUBLT_IMM(d, d, 1);
1117                         M_ADDGT_IMM(d, d, 1);
1118                         emit_store_dst(jd, iptr, d);
1119                         break;
1120
1121                 case ICMD_DCMPL:      /* ..., val1, val2  ==> ..., val1 dcmpl val2    */
1122
1123                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1124                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1125                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1126                         M_DCMP(s1, s2);
1127                         M_MOV_IMM(d, 0);
1128 #if defined(__VFP_FP__)
1129                         M_FMSTAT; /* on VFP we need to transfer the flags */
1130 #endif
1131                         M_SUBLT_IMM(d, d, 1);
1132                         M_ADDGT_IMM(d, d, 1);
1133                         emit_store_dst(jd, iptr, d);
1134                         break;
1135
1136 #endif /* !defined(ENABLE_SOFTFLOAT) */
1137
1138
1139                 /* memory operations **************************************************/
1140
1141                 case ICMD_ARRAYLENGTH: /* ..., arrayref  ==> ..., length              */
1142
1143                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1144                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1145                         /* implicit null-pointer check */
1146                         M_ILD_INTERN(d, s1, OFFSET(java_array_t, size));
1147                         emit_store_dst(jd, iptr, d);
1148                         break;
1149
1150                 case ICMD_BALOAD:     /* ..., arrayref, index  ==> ..., value         */
1151
1152                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1153                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1154                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1155                         /* implicit null-pointer check */
1156                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1157                         M_ADD(REG_ITMP1, s1, s2); /* REG_ITMP1 = s1 + 1 * s2 */
1158                         M_LDRSB(d, REG_ITMP1, OFFSET(java_bytearray_t, data[0]));
1159                         emit_store_dst(jd, iptr, d);
1160                         break;
1161
1162                 case ICMD_CALOAD:     /* ..., arrayref, index  ==> ..., value         */
1163
1164                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1165                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1166                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1167                         /* implicit null-pointer check */
1168                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1169                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1170                         M_LDRH(d, REG_ITMP1, OFFSET(java_chararray_t, data[0]));
1171                         emit_store_dst(jd, iptr, d);
1172                         break;
1173
1174                 case ICMD_SALOAD:     /* ..., arrayref, index  ==> ..., value         */
1175
1176                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1177                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1178                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1179                         /* implicit null-pointer check */
1180                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1181                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1182                         M_LDRSH(d, REG_ITMP1, OFFSET(java_shortarray_t, data[0]));
1183                         emit_store_dst(jd, iptr, d);
1184                         break;
1185
1186                 case ICMD_IALOAD:     /* ..., arrayref, index  ==> ..., value         */
1187
1188                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1189                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1190                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1191                         /* implicit null-pointer check */
1192                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1193                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1194                         M_ILD_INTERN(d, REG_ITMP1, OFFSET(java_intarray_t, data[0]));
1195                         emit_store_dst(jd, iptr, d);
1196                         break;
1197
1198                 case ICMD_LALOAD:     /* ..., arrayref, index  ==> ..., value         */
1199
1200                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1201                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1202                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1203                         /* implicit null-pointer check */
1204                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1205                         M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1206                         M_LLD_INTERN(d, REG_ITMP3, OFFSET(java_longarray_t, data[0]));
1207                         emit_store_dst(jd, iptr, d);
1208                         break;
1209
1210                 case ICMD_FALOAD:     /* ..., arrayref, index  ==> ..., value         */
1211
1212                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1213                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1214                         /* implicit null-pointer check */
1215                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1216                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1217 #if !defined(ENABLE_SOFTFLOAT)
1218                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1219                         M_FLD_INTERN(d, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1220 #else
1221                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1222                         M_ILD_INTERN(d, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1223 #endif
1224                         emit_store_dst(jd, iptr, d);
1225                         break;
1226
1227                 case ICMD_DALOAD:     /* ..., arrayref, index  ==> ..., value         */
1228
1229                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1230                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1231                         /* implicit null-pointer check */
1232                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1233                         M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1234 #if !defined(ENABLE_SOFTFLOAT)
1235                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1236                         M_DLD_INTERN(d, REG_ITMP3, OFFSET(java_doublearray_t, data[0]));
1237 #else
1238                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1239                         M_LLD_INTERN(d, REG_ITMP3, OFFSET(java_doublearray_t, data[0]));
1240 #endif
1241                         emit_store_dst(jd, iptr, d);
1242                         break;
1243
1244                 case ICMD_AALOAD:     /* ..., arrayref, index  ==> ..., value         */
1245
1246                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1247                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1248                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1249                         /* implicit null-pointer check */
1250                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1251                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1252                         M_LDR_INTERN(d, REG_ITMP1, OFFSET(java_objectarray_t, data[0]));
1253                         emit_store_dst(jd, iptr, d);
1254                         break;
1255
1256                 case ICMD_BASTORE:    /* ..., arrayref, index, value  ==> ...         */
1257
1258                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1259                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1260                         /* implicit null-pointer check */
1261                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1262                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1263                         M_ADD(REG_ITMP1, s1, s2); /* REG_ITMP1 = s1 + 1 * s2 */
1264                         M_STRB(s3, REG_ITMP1, OFFSET(java_bytearray_t, data[0]));
1265                         break;
1266
1267                 case ICMD_CASTORE:    /* ..., arrayref, index, value  ==> ...         */
1268
1269                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1270                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1271                         /* implicit null-pointer check */
1272                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1273                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1274                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1275                         M_STRH(s3, REG_ITMP1, OFFSET(java_chararray_t, data[0]));
1276                         break;
1277
1278                 case ICMD_SASTORE:    /* ..., arrayref, index, value  ==> ...         */
1279
1280                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1281                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1282                         /* implicit null-pointer check */
1283                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1284                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1285                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1286                         M_STRH(s3, REG_ITMP1, OFFSET(java_shortarray_t, data[0]));
1287                         break;
1288
1289                 case ICMD_IASTORE:    /* ..., arrayref, index, value  ==> ...         */
1290
1291                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1292                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1293                         /* implicit null-pointer check */
1294                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1295                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1296                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1297                         M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_intarray_t, data[0]));
1298                         break;
1299
1300                 case ICMD_LASTORE:    /* ..., arrayref, index, value  ==> ...         */
1301
1302                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1303                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1304                         /* implicit null-pointer check */
1305                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1306                         M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1307                         s3 = emit_load_s3(jd, iptr, REG_ITMP12_PACKED);
1308                         M_LST_INTERN(s3, REG_ITMP3, OFFSET(java_longarray_t, data[0]));
1309                         break;
1310
1311                 case ICMD_FASTORE:    /* ..., arrayref, index, value  ==> ...         */
1312
1313                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1314                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1315                         /* implicit null-pointer check */
1316                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1317                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1318 #if !defined(ENABLE_SOFTFLOAT)
1319                         s3 = emit_load_s3(jd, iptr, REG_FTMP1);
1320                         M_FST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1321 #else
1322                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1323                         M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1324 #endif
1325                         break;
1326
1327                 case ICMD_DASTORE:    /* ..., arrayref, index, value  ==> ...         */
1328
1329                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1330                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1331                         /* implicit null-pointer check */
1332                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1333                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 3)); /* REG_ITMP1 = s1 + 8 * s2 */
1334 #if !defined(ENABLE_SOFTFLOAT)
1335                         s3 = emit_load_s3(jd, iptr, REG_FTMP1);
1336                         M_DST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray_t, data[0]));
1337 #else
1338                         s3 = emit_load_s3(jd, iptr, REG_ITMP23_PACKED);
1339                         M_LST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray_t, data[0]));
1340 #endif
1341                         break;
1342
1343                 case ICMD_AASTORE:    /* ..., arrayref, index, value  ==> ...         */
1344
1345                         s1 = emit_load_s1(jd, iptr, REG_A0);
1346                         s2 = emit_load_s2(jd, iptr, REG_ITMP1);
1347                         s3 = emit_load_s3(jd, iptr, REG_A1);
1348
1349                         /* implicit null-pointer check */
1350                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1351
1352                         /* move arguments to argument registers */
1353                         M_INTMOVE(s1, REG_A0);
1354                         M_INTMOVE(s3, REG_A1);
1355
1356                         /* call builtin function */
1357                         disp = dseg_add_functionptr(cd, BUILTIN_FAST_canstore);
1358                         M_DSEG_BRANCH(disp);
1359
1360                         /* recompute pv */
1361                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
1362                         M_RECOMPUTE_PV(s1);
1363
1364                         /* check resturn value of builtin */
1365                         emit_arraystore_check(cd, iptr);
1366
1367                         /* finally store address into array */
1368                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1369                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1370                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1371                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1372                         M_STR_INTERN(s3, REG_ITMP1, OFFSET(java_objectarray_t, data[0]));
1373                         break;
1374
1375                 case ICMD_GETSTATIC:  /* ...  ==> ..., value                          */
1376
1377                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1378                                 uf        = iptr->sx.s23.s3.uf;
1379                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1380                                 disp      = dseg_add_unique_address(cd, NULL);
1381
1382                                 patcher_add_patch_ref(jd, PATCHER_get_putstatic, uf, disp);
1383                         }
1384                         else {
1385                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1386                                 fieldtype = fi->type;
1387                                 disp      = dseg_add_address(cd, fi->value);
1388
1389                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1390                                         patcher_add_patch_ref(jd, PATCHER_initialize_class,
1391                                                             fi->class, 0);
1392                                 }
1393                         }
1394
1395                         M_DSEG_LOAD(REG_ITMP3, disp);
1396                         switch (fieldtype) {
1397                         case TYPE_INT:
1398 #if defined(ENABLE_SOFTFLOAT)
1399                         case TYPE_FLT:
1400 #endif
1401                         case TYPE_ADR:
1402                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1403                                 M_ILD_INTERN(d, REG_ITMP3, 0);
1404                                 break;
1405                         case TYPE_LNG:
1406 #if defined(ENABLE_SOFTFLOAT)
1407                         case TYPE_DBL:
1408 #endif
1409                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1410                                 M_LLD_INTERN(d, REG_ITMP3, 0);
1411                                 break;
1412 #if !defined(ENABLE_SOFTFLOAT)
1413                         case TYPE_FLT:
1414                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1415                                 M_FLD_INTERN(d, REG_ITMP3, 0);
1416                                 break;
1417                         case TYPE_DBL:
1418                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1419                                 M_DLD_INTERN(d, REG_ITMP3, 0);
1420                                 break;
1421 #endif
1422                         default:
1423                                 assert(0);
1424                         }
1425                         emit_store_dst(jd, iptr, d);
1426                         break;
1427
1428                 case ICMD_PUTSTATIC:  /* ..., value  ==> ...                          */
1429
1430                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1431                                 uf        = iptr->sx.s23.s3.uf;
1432                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1433                                 disp      = dseg_add_unique_address(cd, NULL);
1434
1435                                 patcher_add_patch_ref(jd, PATCHER_get_putstatic, uf, disp);
1436                         }
1437                         else {
1438                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1439                                 fieldtype = fi->type;
1440                                 disp      = dseg_add_address(cd, fi->value);
1441
1442                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1443                                         patcher_add_patch_ref(jd, PATCHER_initialize_class,
1444                                                             fi->class, 0);
1445                                 }
1446                         }
1447
1448                         M_DSEG_LOAD(REG_ITMP3, disp);
1449                         switch (fieldtype) {
1450                         case TYPE_INT:
1451 #if defined(ENABLE_SOFTFLOAT)
1452                         case TYPE_FLT:
1453 #endif
1454                         case TYPE_ADR:
1455                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1456                                 M_IST_INTERN(s1, REG_ITMP3, 0);
1457                                 break;
1458                         case TYPE_LNG:
1459 #if defined(ENABLE_SOFTFLOAT)
1460                         case TYPE_DBL:
1461 #endif
1462                                 s1 = emit_load_s1(jd, iptr, REG_ITMP12_PACKED);
1463                                 M_LST_INTERN(s1, REG_ITMP3, 0);
1464                                 break;
1465 #if !defined(ENABLE_SOFTFLOAT)
1466                         case TYPE_FLT:
1467                                 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1468                                 M_FST_INTERN(s1, REG_ITMP3, 0);
1469                                 break;
1470                         case TYPE_DBL:
1471                                 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1472                                 M_DST_INTERN(s1, REG_ITMP3, 0);
1473                                 break;
1474 #endif
1475                         default:
1476                                 assert(0);
1477                         }
1478                         break;
1479
1480                 case ICMD_GETFIELD:   /* ..., objectref, value  ==> ...               */
1481
1482                         s1 = emit_load_s1(jd, iptr, REG_ITMP3);
1483                         emit_nullpointer_check(cd, iptr, s1);
1484
1485
1486                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1487                                 uf        = iptr->sx.s23.s3.uf;
1488                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1489                                 disp      = 0;
1490                         }
1491                         else {
1492                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1493                                 fieldtype = fi->type;
1494                                 disp      = fi->offset;
1495                         }
1496
1497 #if !defined(ENABLE_SOFTFLOAT)
1498                         /* HACK: softnull checks on floats */
1499                         if (!INSTRUCTION_MUST_CHECK(iptr) && IS_FLT_DBL_TYPE(fieldtype))
1500                                 emit_nullpointer_check_force(cd, iptr, s1);
1501 #endif
1502
1503                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1504                                 /* XXX REMOVE ME */
1505                                 uf = iptr->sx.s23.s3.uf;
1506
1507                                 patcher_add_patch_ref(jd, PATCHER_get_putfield, uf, 0);
1508                         }
1509
1510                         switch (fieldtype) {
1511                         case TYPE_INT:
1512 #if defined(ENABLE_SOFTFLOAT)
1513                         case TYPE_FLT:
1514 #endif
1515                         case TYPE_ADR:
1516                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1517                                 M_ILD(d, s1, disp);
1518                                 break;
1519                         case TYPE_LNG:
1520 #if defined(ENABLE_SOFTFLOAT)
1521                         case TYPE_DBL:
1522 #endif
1523                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1524                                 M_LLD(d, s1, disp);
1525                                 break;
1526 #if !defined(ENABLE_SOFTFLOAT)
1527                         case TYPE_FLT:
1528                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1529                                 M_FLD(d, s1, disp);
1530                                 break;
1531                         case TYPE_DBL:
1532                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1533                                 M_DLD(d, s1, disp);
1534                                 break;
1535 #endif
1536                         default:
1537                                 assert(0);
1538                         }
1539                         emit_store_dst(jd, iptr, d);
1540                         break;
1541
1542                 case ICMD_PUTFIELD:   /* ..., objectref, value  ==> ...               */
1543
1544                         s1 = emit_load_s1(jd, iptr, REG_ITMP3);
1545                         emit_nullpointer_check(cd, iptr, s1);
1546
1547                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1548                                 uf        = iptr->sx.s23.s3.uf;
1549                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1550                                 disp      = 0;
1551                         }
1552                         else {
1553                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1554                                 fieldtype = fi->type;
1555                                 disp      = fi->offset;
1556                         }
1557
1558 #if !defined(ENABLE_SOFTFLOAT)
1559                         /* HACK: softnull checks on floats */
1560                         if (!INSTRUCTION_MUST_CHECK(iptr) && IS_FLT_DBL_TYPE(fieldtype))
1561                                 emit_nullpointer_check_force(cd, iptr, s1);
1562 #endif
1563
1564                         switch (fieldtype) {
1565                         case TYPE_INT:
1566 #if defined(ENABLE_SOFTFLOAT)
1567                         case TYPE_FLT:
1568 #endif
1569                         case TYPE_ADR:
1570                                 s2 = emit_load_s2(jd, iptr, REG_ITMP1);
1571                                 break;
1572 #if defined(ENABLE_SOFTFLOAT)
1573                         case TYPE_DBL: /* fall through */
1574 #endif
1575                         case TYPE_LNG:
1576                                 s2 = emit_load_s2(jd, iptr, REG_ITMP12_PACKED);
1577                                 break;
1578 #if !defined(ENABLE_SOFTFLOAT)
1579                         case TYPE_FLT:
1580                         case TYPE_DBL:
1581                                 s2 = emit_load_s2(jd, iptr, REG_FTMP1);
1582                                 break;
1583 #endif
1584                         default:
1585                                 assert(0);
1586                         }
1587
1588                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1589                                 /* XXX REMOVE ME */
1590                                 uf = iptr->sx.s23.s3.uf;
1591
1592                                 patcher_add_patch_ref(jd, PATCHER_get_putfield, uf, 0);
1593                         }
1594
1595                         switch (fieldtype) {
1596                         case TYPE_INT:
1597 #if defined(ENABLE_SOFTFLOAT)
1598                         case TYPE_FLT:
1599 #endif
1600                         case TYPE_ADR:
1601                                 M_IST(s2, s1, disp);
1602                                 break;
1603                         case TYPE_LNG:
1604 #if defined(ENABLE_SOFTFLOAT)
1605                         case TYPE_DBL:
1606 #endif
1607                                 M_LST(s2, s1, disp);
1608                                 break;
1609 #if !defined(ENABLE_SOFTFLOAT)
1610                         case TYPE_FLT:
1611                                 M_FST(s2, s1, disp);
1612                                 break;
1613                         case TYPE_DBL:
1614                                 M_DST(s2, s1, disp);
1615                                 break;
1616 #endif
1617                         default:
1618                                 assert(0);
1619                         }
1620                         break;
1621
1622
1623                 /* branch operations **************************************************/
1624
1625                 case ICMD_ATHROW:       /* ..., objectref ==> ... (, objectref)       */
1626
1627                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1628                         M_INTMOVE(s1, REG_ITMP1_XPTR);
1629                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1630                                 patcher_add_patch_ref(jd, PATCHER_resolve_class,
1631                                                                         iptr->sx.s23.s2.uc, 0);
1632                         }
1633                         disp = dseg_add_functionptr(cd, asm_handle_exception);
1634                         M_DSEG_LOAD(REG_ITMP3, disp);
1635                         M_MOV(REG_ITMP2_XPC, REG_PC);
1636                         M_MOV(REG_PC, REG_ITMP3);
1637                         M_NOP;              /* nop ensures that XPC is less than the end  */
1638                                             /* of basic block                             */
1639                         break;
1640
1641                 case ICMD_GOTO:         /* ... ==> ...                                */
1642                 case ICMD_RET:
1643
1644                         emit_br(cd, iptr->dst.block);
1645                         break;
1646
1647                 case ICMD_JSR:          /* ... ==> ...                                */
1648
1649                         emit_br(cd, iptr->sx.s23.s3.jsrtarget.block);
1650                         break;
1651
1652                 case ICMD_IFNULL:       /* ..., value ==> ...                         */
1653                 case ICMD_IFNONNULL:
1654
1655                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1656                         M_TEQ_IMM(s1, 0);
1657                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFNULL, BRANCH_OPT_NONE);
1658                         break;
1659
1660                 case ICMD_IFLT:         /* ..., value ==> ...                         */
1661                 case ICMD_IFLE:         /* op1 = target JavaVM pc, val.i = constant   */
1662                 case ICMD_IFGT:
1663                 case ICMD_IFGE:
1664                 case ICMD_IFEQ:
1665                 case ICMD_IFNE:
1666
1667                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1668                         M_COMPARE(s1, iptr->sx.val.i);
1669                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFEQ, BRANCH_OPT_NONE);
1670                         break;
1671
1672                 case ICMD_IF_LEQ:       /* ..., value ==> ...                         */
1673
1674                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1675                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1676                         if (iptr->sx.val.l == 0) {
1677                                 M_ORR_S(s1, s2, REG_ITMP3);
1678                         }
1679                         else {
1680                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1681                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1682                                 M_CMP(s1, REG_ITMP3);*/
1683                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1684                                 M_CMPEQ(s2, REG_ITMP3);
1685                         }
1686                         emit_beq(cd, iptr->dst.block);
1687                         break;
1688
1689                 case ICMD_IF_LLT:       /* ..., value ==> ...                         */
1690
1691                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1692                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1693                         if (iptr->sx.val.l == 0) {
1694                                 /* if high word is less than zero, the whole long is too */
1695                                 M_CMP_IMM(s1, 0);
1696                                 emit_blt(cd, iptr->dst.block);
1697                         }
1698                         else {
1699                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1700                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1701                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1702                                 M_CMP(s1, REG_ITMP3);*/
1703                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1704                                 M_MOVGT_IMM(2, REG_ITMP1);
1705                                 M_MOVEQ_IMM(1, REG_ITMP1);
1706
1707                                 /* low compare: x=x-1(ifLO) */
1708                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1709                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1710                                 M_CMP(s2, REG_ITMP3);*/
1711                                 M_SUBLO_IMM(REG_ITMP1, REG_ITMP1, 1);
1712
1713                                 /* branch if (x LT 1) */
1714                                 M_CMP_IMM(REG_ITMP1, 1);
1715                                 emit_blt(cd, iptr->dst.block);
1716                         }
1717                         break;
1718
1719                 case ICMD_IF_LLE:       /* ..., value ==> ...                         */
1720
1721                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1722                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1723                         if (iptr->sx.val.l == 0) {
1724                                 /* if high word is less than zero, the whole long is too  */
1725                                 M_CMP_IMM(s1, 0);
1726                                 emit_blt(cd, iptr->dst.block);
1727
1728                                 /* ... otherwise the low word has to be zero (tricky!) */
1729                                 M_CMPEQ_IMM(s2, 0);
1730                                 emit_beq(cd, iptr->dst.block);
1731                         }
1732                         else {
1733                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1734                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1735                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1736                                 M_CMP(s1, REG_ITMP3);*/
1737                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1738                                 M_MOVGT_IMM(2, REG_ITMP1);
1739                                 M_MOVEQ_IMM(1, REG_ITMP1);
1740
1741                                 /* low compare: x=x+1(ifHI) */
1742                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1743                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1744                                 M_CMP(s2, REG_ITMP3);*/
1745                                 M_ADDHI_IMM(REG_ITMP1, REG_ITMP1, 1);
1746
1747                                 /* branch if (x LE 1) */
1748                                 M_CMP_IMM(REG_ITMP1, 1);
1749                                 emit_ble(cd, iptr->dst.block);
1750                         }
1751                         break;
1752
1753                 case ICMD_IF_LGE:       /* ..., value ==> ...                         */
1754
1755                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1756                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1757                         if (iptr->sx.val.l == 0) {
1758                                 /* if high word is greater or equal zero, the whole long is too */
1759                                 M_CMP_IMM(s1, 0);
1760                                 emit_bge(cd, iptr->dst.block);
1761                         }
1762                         else {
1763                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1764                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1765                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1766                                 M_CMP(s1, REG_ITMP3);*/
1767                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1768                                 M_MOVGT_IMM(2, REG_ITMP1);
1769                                 M_MOVEQ_IMM(1, REG_ITMP1);
1770
1771                                 /* low compare: x=x-1(ifLO) */
1772                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1773                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1774                                 M_CMP(s2, REG_ITMP3);*/
1775                                 M_SUBLO_IMM(REG_ITMP1, REG_ITMP1, 1);
1776
1777                                 /* branch if (x GE 1) */
1778                                 M_CMP_IMM(REG_ITMP1, 1);
1779                                 emit_bge(cd, iptr->dst.block);
1780                         }
1781                         break;
1782
1783                 case ICMD_IF_LGT:       /* ..., value ==> ...                         */
1784
1785                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1786                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1787 #if 0
1788                         if (iptr->sx.val.l == 0) {
1789                                 /* if high word is greater than zero, the whole long is too */
1790                                 M_CMP_IMM(s1, 0);
1791                                 M_BGT(0);
1792                                 codegen_add_branch_ref(cd, iptr->dst.block);
1793
1794                                 /* ... or high was zero and low is non zero (tricky!) */
1795                                 M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1796                                 M_MOVLT_IMM(1, REG_ITMP3);
1797                                 M_ORR_S(REG_ITMP3, s2, REG_ITMP3);
1798                                 M_BNE(0);
1799                                 codegen_add_branch_ref(cd, iptr->dst.block);
1800                         }
1801                         else {
1802 #endif
1803                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1804                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1805                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1806                                 M_CMP(s1, REG_ITMP3);*/
1807                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1808                                 M_MOVGT_IMM(2, REG_ITMP1);
1809                                 M_MOVEQ_IMM(1, REG_ITMP1);
1810
1811                                 /* low compare: x=x+1(ifHI) */
1812                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1813                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1814                                 M_CMP(s2, REG_ITMP3);*/
1815                                 M_ADDHI_IMM(REG_ITMP1, REG_ITMP1, 1);
1816
1817                                 /* branch if (x GT 1) */
1818                                 M_CMP_IMM(REG_ITMP1, 1);
1819                                 emit_bgt(cd, iptr->dst.block);
1820 #if 0
1821                         }
1822 #endif
1823                         break;
1824
1825                 case ICMD_IF_LNE:       /* ..., value ==> ...                         */
1826
1827                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1828                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1829                         if (iptr->sx.val.l == 0) {
1830                                 M_ORR_S(s1, s2, REG_ITMP3);
1831                         }
1832                         else {
1833                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1834                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1835                                 M_CMP(s1, REG_ITMP3);*/
1836                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1837                                 M_CMPEQ(s2, REG_ITMP3);
1838                         }
1839                         emit_bne(cd, iptr->dst.block);
1840                         break;
1841
1842                 case ICMD_IF_ICMPEQ:    /* ..., value, value ==> ...                  */
1843                 case ICMD_IF_ICMPNE:
1844                 case ICMD_IF_ICMPLT:
1845                 case ICMD_IF_ICMPLE:
1846                 case ICMD_IF_ICMPGT:
1847                 case ICMD_IF_ICMPGE:
1848
1849                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1850                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1851                         M_CMP(s1, s2);
1852                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IF_ICMPEQ, BRANCH_OPT_NONE);
1853                         break;
1854
1855                 case ICMD_IF_ACMPEQ:    /* ..., value, value ==> ...                  */
1856                 case ICMD_IF_ACMPNE:
1857
1858                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1859                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1860                         M_CMP(s1, s2);
1861                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IF_ACMPEQ, BRANCH_OPT_NONE);
1862                         break;
1863
1864                 case ICMD_IF_LCMPEQ:    /* ..., value, value ==> ...                  */
1865                                         /* op1 = target JavaVM pc                     */
1866
1867                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1868                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1869                         M_CMP(s1, s2);
1870
1871                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1872                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1873                         M_CMPEQ(s1, s2);
1874
1875                         emit_beq(cd, iptr->dst.block);
1876                         break;
1877
1878                 case ICMD_IF_LCMPNE:    /* ..., value, value ==> ...                  */
1879                                         /* op1 = target JavaVM pc                     */
1880
1881                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1882                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1883                         M_CMP(s1, s2);
1884
1885                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1886                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1887                         M_CMPEQ(s1, s2);
1888
1889                         emit_bne(cd, iptr->dst.block);
1890                         break;
1891
1892                 case ICMD_IF_LCMPLT:    /* ..., value, value ==> ...                  */
1893                                         /* op1 = target JavaVM pc                     */
1894
1895                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1896                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1897                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1898                         M_CMP(s1, s2);
1899                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1900                         M_MOVGT_IMM(2, REG_ITMP3);
1901                         M_MOVEQ_IMM(1, REG_ITMP3);
1902
1903                         /* low compare: x=x-1(ifLO) */
1904                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1905                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1906                         M_CMP(s1, s2);
1907                         M_SUBLO_IMM(REG_ITMP3, REG_ITMP3, 1);
1908
1909                         /* branch if (x LT 1) */
1910                         M_CMP_IMM(REG_ITMP3, 1);
1911                         emit_blt(cd, iptr->dst.block);
1912                         break;
1913
1914                 case ICMD_IF_LCMPLE:    /* ..., value, value ==> ...                  */
1915                                         /* op1 = target JavaVM pc                     */
1916
1917                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1918                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1919                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1920                         M_CMP(s1, s2);
1921                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1922                         M_MOVGT_IMM(2, REG_ITMP3);
1923                         M_MOVEQ_IMM(1, REG_ITMP3);
1924
1925                         /* low compare: x=x-1(ifLO) */
1926                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1927                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1928                         M_CMP(s1, s2);
1929                         M_ADDHI_IMM(REG_ITMP3, REG_ITMP3, 1);
1930
1931                         /* branch if (x LE 1) */
1932                         M_CMP_IMM(REG_ITMP3, 1);
1933                         emit_ble(cd, iptr->dst.block);
1934                         break;
1935
1936                 case ICMD_IF_LCMPGT:    /* ..., 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_ADDHI_IMM(REG_ITMP3, REG_ITMP3, 1);
1952
1953                         /* branch if (x GT 1) */
1954                         M_CMP_IMM(REG_ITMP3, 1);
1955                         emit_bgt(cd, iptr->dst.block);
1956                         break;
1957
1958                 case ICMD_IF_LCMPGE:    /* ..., 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_SUBLO_IMM(REG_ITMP3, REG_ITMP3, 1);
1974
1975                         /* branch if (x GE 1) */
1976                         M_CMP_IMM(REG_ITMP3, 1);
1977                         emit_bge(cd, iptr->dst.block);
1978                         break;
1979
1980                 case ICMD_TABLESWITCH:  /* ..., index ==> ...                         */
1981                         {
1982                         s4 i, l;
1983                         branch_target_t *table;
1984
1985                         table = iptr->dst.table;
1986
1987                         l = iptr->sx.s23.s2.tablelow;
1988                         i = iptr->sx.s23.s3.tablehigh;
1989
1990                         /* calculate new index (index - low) */
1991                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1992                         if (l  == 0) {
1993                                 M_INTMOVE(s1, REG_ITMP1);
1994                         } else if (IS_IMM(l)) {
1995                                 M_SUB_IMM(REG_ITMP1, s1, l);
1996                         } else {
1997                                 ICONST(REG_ITMP2, l);
1998                                 M_SUB(REG_ITMP1, s1, REG_ITMP2);
1999                         }
2000
2001                         /* range check (index <= high-low) */
2002                         i = i - l + 1;
2003                         M_COMPARE(REG_ITMP1, i-1);
2004                         emit_bugt(cd, table[0].block);
2005
2006                         /* build jump table top down and use address of lowest entry */
2007
2008                         table += i;
2009
2010                         while (--i >= 0) {
2011                                 dseg_add_target(cd, table->block);
2012                                 --table;
2013                         }
2014                         }
2015
2016                         /* length of dataseg after last dseg_add_target is used by load */
2017                         /* TODO: this loads from data-segment */
2018                         M_ADD(REG_ITMP2, REG_PV, REG_LSL(REG_ITMP1, 2));
2019                         M_LDR(REG_PC, REG_ITMP2, -(cd->dseglen));
2020                         break;
2021
2022                 case ICMD_LOOKUPSWITCH: /* ..., key ==> ...                           */
2023                         {
2024                         s4 i;
2025                         lookup_target_t *lookup;
2026
2027                         lookup = iptr->dst.lookup;
2028
2029                         i = iptr->sx.s23.s2.lookupcount;
2030
2031                         /* compare keys */
2032                         MCODECHECK((i<<2)+8);
2033                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2034
2035                         while (--i >= 0) {
2036                                 M_COMPARE(s1, lookup->value);
2037                                 emit_beq(cd, lookup->target.block);
2038                                 lookup++;
2039                         }
2040
2041                         /* default branch */
2042                         emit_br(cd, iptr->sx.s23.s3.lookupdefault.block);
2043                         }
2044                         break;
2045
2046                 case ICMD_FRETURN:      /* ..., retvalue ==> ...                      */
2047
2048 #if !defined(ENABLE_SOFTFLOAT)
2049                         REPLACEMENT_POINT_RETURN(cd, iptr);
2050                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
2051                         M_CAST_F2I(s1, REG_RESULT);
2052                         goto ICMD_RETURN_do;
2053 #endif
2054
2055                 case ICMD_IRETURN:      /* ..., retvalue ==> ...                      */
2056
2057                         REPLACEMENT_POINT_RETURN(cd, iptr);
2058                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2059                         M_INTMOVE(s1, REG_RESULT);
2060                         goto ICMD_RETURN_do;
2061
2062                 case ICMD_DRETURN:      /* ..., retvalue ==> ...                      */
2063
2064 #if !defined(ENABLE_SOFTFLOAT)
2065                         REPLACEMENT_POINT_RETURN(cd, iptr);
2066                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
2067                         M_CAST_D2L(s1, REG_RESULT_PACKED);
2068                         goto ICMD_RETURN_do;
2069 #endif
2070
2071                 case ICMD_LRETURN:      /* ..., retvalue ==> ...                      */
2072
2073                         REPLACEMENT_POINT_RETURN(cd, iptr);
2074                         s1 = emit_load_s1(jd, iptr, REG_RESULT_PACKED);
2075                         M_LNGMOVE(s1, REG_RESULT_PACKED);
2076                         goto ICMD_RETURN_do;
2077
2078                 case ICMD_ARETURN:      /* ..., retvalue ==> ...                      */
2079
2080                         REPLACEMENT_POINT_RETURN(cd, iptr);
2081                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2082                         M_INTMOVE(s1, REG_RESULT);
2083                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2084                                 patcher_add_patch_ref(jd, PATCHER_resolve_class,
2085                                                                         iptr->sx.s23.s2.uc, 0);
2086                         }
2087                         goto ICMD_RETURN_do;
2088
2089                 case ICMD_RETURN:       /* ...  ==> ...                               */
2090
2091                         REPLACEMENT_POINT_RETURN(cd, iptr);
2092                         ICMD_RETURN_do:
2093
2094 #if !defined(NDEBUG)
2095                         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
2096                                 emit_verbosecall_exit(jd);
2097 #endif
2098
2099 #if defined(ENABLE_THREADS)
2100                         /* call monitorexit function */
2101
2102                         if (checksync && code_is_synchronized(code)) {
2103                                 /* stack offset for monitor argument */
2104
2105                                 s1 = rd->memuse * 8;
2106
2107                                 /* we need to save the proper return value */
2108
2109                                 switch (iptr->opc) {
2110                                 case ICMD_IRETURN:
2111                                 case ICMD_ARETURN:
2112                                 case ICMD_LRETURN:
2113                                 case ICMD_FRETURN: /* XXX TWISTI: is that correct? */
2114                                 case ICMD_DRETURN:
2115                                         M_STMFD(BITMASK_RESULT, REG_SP);
2116                                         s1 += 2 * 4;
2117                                         break;
2118                                 }
2119
2120                                 M_LDR(REG_A0, REG_SP, s1);
2121                                 disp = dseg_add_functionptr(cd, LOCK_monitor_exit);
2122                                 M_DSEG_BRANCH(disp);
2123
2124                                 /* we no longer need PV here, no more loading */
2125                                 /*s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2126                                 M_RECOMPUTE_PV(s1);*/
2127
2128                                 switch (iptr->opc) {
2129                                 case ICMD_IRETURN:
2130                                 case ICMD_ARETURN:
2131                                 case ICMD_LRETURN:
2132                                 case ICMD_FRETURN: /* XXX TWISTI: is that correct? */
2133                                 case ICMD_DRETURN:
2134                                         M_LDMFD(BITMASK_RESULT, REG_SP);
2135                                         break;
2136                                 }
2137                         }
2138 #endif
2139
2140                         /* deallocate stackframe for spilled variables */
2141
2142                         if ((cd->stackframesize / 4 - savedregs_num) > 0)
2143                                 M_ADD_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - savedregs_num);
2144
2145                         /* restore callee saved registers + do return */
2146
2147                         if (savedregs_bitmask) {
2148                                 if (!code_is_leafmethod(code)) {
2149                                         savedregs_bitmask &= ~(1<<REG_LR);
2150                                         savedregs_bitmask |= (1<<REG_PC);
2151                                 }
2152                                 M_LDMFD(savedregs_bitmask, REG_SP);
2153                         }
2154
2155                         /* if LR was not on stack, we need to return manually */
2156
2157                         if (code_is_leafmethod(code))
2158                                 M_MOV(REG_PC, REG_LR);
2159                         break;
2160
2161                 case ICMD_BUILTIN:      /* ..., arg1, arg2, arg3 ==> ...              */
2162
2163                         bte = iptr->sx.s23.s3.bte;
2164                         md  = bte->md;
2165                         goto ICMD_INVOKE_do;
2166
2167                 case ICMD_INVOKESTATIC: /* ..., [arg1, [arg2 ...]] ==> ...            */
2168                 case ICMD_INVOKESPECIAL:/* ..., objectref, [arg1, [arg2 ...]] ==> ... */
2169                 case ICMD_INVOKEVIRTUAL:/* op1 = arg count, val.a = method pointer    */
2170                 case ICMD_INVOKEINTERFACE:
2171
2172                         REPLACEMENT_POINT_INVOKE(cd, iptr);
2173
2174                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2175                                 lm = NULL;
2176                                 um = iptr->sx.s23.s3.um;
2177                                 md = um->methodref->parseddesc.md;
2178                         }
2179                         else {
2180                                 lm = iptr->sx.s23.s3.fmiref->p.method;
2181                                 um = NULL;
2182                                 md = lm->parseddesc;
2183                         }
2184
2185                 ICMD_INVOKE_do:
2186                         /* copy arguments to registers or stack location */
2187
2188                         s3 = md->paramcount;
2189
2190                         MCODECHECK((s3 << 1) + 64);
2191
2192                         for (s3 = s3 - 1; s3 >= 0; s3--) {
2193                                 var = VAR(iptr->sx.s23.s2.args[s3]);
2194                                 d   = md->params[s3].regoff;
2195
2196                                 if (var->flags & PREALLOC) /* argument was precolored? */
2197                                         continue;
2198
2199                                 /* TODO: document me */
2200 #if !defined(ENABLE_SOFTFLOAT)
2201                                 if (IS_INT_LNG_TYPE(var->type)) {
2202 #endif /* !defined(ENABLE_SOFTFLOAT) */
2203                                         if (!md->params[s3].inmemory) {
2204                                                 s1 = emit_load(jd, iptr, var, d);
2205
2206                                                 if (IS_2_WORD_TYPE(var->type))
2207                                                         M_LNGMOVE(s1, d);
2208                                                 else
2209                                                         M_INTMOVE(s1, d);
2210                                         }
2211                                         else {
2212                                                 if (IS_2_WORD_TYPE(var->type)) {
2213                                                         s1 = emit_load(jd, iptr, var, REG_ITMP12_PACKED);
2214                                                         M_LST(s1, REG_SP, d);
2215                                                 }
2216                                                 else {
2217                                                         s1 = emit_load(jd, iptr, var, REG_ITMP1);
2218                                                         M_IST(s1, REG_SP, d);
2219                                                 }
2220                                         }
2221 #if !defined(ENABLE_SOFTFLOAT)
2222                                 }
2223                                 else {
2224                                         if (!md->params[s3].inmemory) {
2225                                                 s1 = emit_load(jd, iptr, var, REG_FTMP1);
2226                                                 if (IS_2_WORD_TYPE(var->type))
2227                                                         M_CAST_D2L(s1, d);
2228                                                 else
2229                                                         M_CAST_F2I(s1, d);
2230                                         }
2231                                         else {
2232                                                 s1 = emit_load(jd, iptr, var, REG_FTMP1);
2233                                                 if (IS_2_WORD_TYPE(var->type))
2234                                                         M_DST(s1, REG_SP, d);
2235                                                 else
2236                                                         M_FST(s1, REG_SP, d);
2237                                         }
2238                                 }
2239 #endif /* !defined(ENABLE_SOFTFLOAT) */
2240                         }
2241
2242                         switch (iptr->opc) {
2243                         case ICMD_BUILTIN:
2244
2245                                 if (bte->stub == NULL) {
2246                                         disp = dseg_add_functionptr(cd, bte->fp);
2247                                 } else {
2248                                         disp = dseg_add_functionptr(cd, bte->stub);
2249                                 }
2250
2251                                 M_DSEG_LOAD(REG_PV, disp); /* pointer to built-in-function */
2252
2253                                 /* generate the actual call */
2254
2255                                 M_MOV(REG_LR, REG_PC);
2256                                 M_MOV(REG_PC, REG_PV);
2257                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2258                                 M_RECOMPUTE_PV(s1);
2259                                 break;
2260
2261                         case ICMD_INVOKESPECIAL:
2262                                 emit_nullpointer_check(cd, iptr, REG_A0);
2263                                 /* fall through */
2264
2265                         case ICMD_INVOKESTATIC:
2266                                 if (lm == NULL) {
2267                                         disp = dseg_add_unique_address(cd, NULL);
2268
2269                                         patcher_add_patch_ref(jd, PATCHER_invokestatic_special,
2270                                                                                 um, disp);
2271                                 }
2272                                 else
2273                                         disp = dseg_add_address(cd, lm->stubroutine);
2274
2275                                 M_DSEG_LOAD(REG_PV, disp);            /* Pointer to method */
2276
2277                                 /* generate the actual call */
2278
2279                                 M_MOV(REG_LR, REG_PC);
2280                                 M_MOV(REG_PC, REG_PV);
2281                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2282                                 M_RECOMPUTE_PV(s1);
2283                                 break;
2284
2285                         case ICMD_INVOKEVIRTUAL:
2286                                 if (lm == NULL) {
2287                                         patcher_add_patch_ref(jd, PATCHER_invokevirtual, um, 0);
2288
2289                                         s1 = 0;
2290                                 }
2291                                 else
2292                                         s1 = OFFSET(vftbl_t, table[0]) +
2293                                                 sizeof(methodptr) * lm->vftblindex;
2294
2295                                 /* implicit null-pointer check */
2296                                 M_LDR_INTERN(REG_METHODPTR, REG_A0,
2297                                                          OFFSET(java_object_t, vftbl));
2298                                 M_LDR_INTERN(REG_PV, REG_METHODPTR, s1);
2299
2300                                 /* generate the actual call */
2301
2302                                 M_MOV(REG_LR, REG_PC);
2303                                 M_MOV(REG_PC, REG_PV);
2304                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2305                                 M_RECOMPUTE_PV(s1);
2306                                 break;
2307
2308                         case ICMD_INVOKEINTERFACE:
2309                                 if (lm == NULL) {
2310                                         patcher_add_patch_ref(jd, PATCHER_invokeinterface, um, 0);
2311
2312                                         s1 = 0;
2313                                         s2 = 0;
2314                                 }
2315                                 else {
2316                                         s1 = OFFSET(vftbl_t, interfacetable[0]) -
2317                                                 sizeof(methodptr*) * lm->class->index;
2318                                         s2 = sizeof(methodptr) * (lm - lm->class->methods);
2319                                 }
2320
2321                                 /* implicit null-pointer check */
2322                                 M_LDR_INTERN(REG_METHODPTR, REG_A0,
2323                                                          OFFSET(java_object_t, vftbl));
2324                                 M_LDR_INTERN(REG_METHODPTR, REG_METHODPTR, s1);
2325                                 M_LDR_INTERN(REG_PV, REG_METHODPTR, s2);
2326
2327                                 /* generate the actual call */
2328
2329                                 M_MOV(REG_LR, REG_PC);
2330                                 M_MOV(REG_PC, REG_PV);
2331                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2332                                 M_RECOMPUTE_PV(s1);
2333                                 break;
2334                         }
2335
2336                         /* store size of call code in replacement point */
2337                         REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2338
2339                         /* store return value */
2340
2341                         d = md->returntype.type;
2342
2343 #if !defined(__SOFTFP__)
2344                         /* TODO: this is only a hack, since we use R0/R1 for float
2345                            return!  this depends on gcc; it is independent from
2346                            our ENABLE_SOFTFLOAT define */
2347                         if (iptr->opc == ICMD_BUILTIN && d != TYPE_VOID && IS_FLT_DBL_TYPE(d)) {
2348 #if 0 && !defined(NDEBUG)
2349                                 dolog("BUILTIN that returns float or double (%s.%s)", m->class->name->text, m->name->text);
2350 #endif
2351                                 /* we cannot use this macro, since it is not defined
2352                                    in ENABLE_SOFTFLOAT M_CAST_FLT_TO_INT_TYPED(d,
2353                                    REG_FRESULT, REG_RESULT_TYPED(d)); */
2354                                 if (IS_2_WORD_TYPE(d)) {
2355                                         DCD(0xed2d8102); /* stfd    f0, [sp, #-8]! */
2356                                         M_LDRD_UPDATE(REG_RESULT_PACKED, REG_SP, 8);
2357                                 } else {
2358                                         DCD(0xed2d0101); /* stfs    f0, [sp, #-4]!*/
2359                                         M_LDR_UPDATE(REG_RESULT, REG_SP, 4);
2360                                 }
2361                         }
2362 #endif
2363
2364                         if (d != TYPE_VOID) {
2365 #if !defined(ENABLE_SOFTFLOAT)
2366                                 if (IS_INT_LNG_TYPE(d)) {
2367 #endif /* !defined(ENABLE_SOFTFLOAT) */
2368                                         if (IS_2_WORD_TYPE(d)) {
2369                                                 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
2370                                                 M_LNGMOVE(REG_RESULT_PACKED, s1);
2371                                         }
2372                                         else {
2373                                                 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2374                                                 M_INTMOVE(REG_RESULT, s1);
2375                                         }
2376
2377 #if !defined(ENABLE_SOFTFLOAT)
2378                                 } else {
2379                                         s1 = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
2380                                         if (IS_2_WORD_TYPE(d))
2381                                                 M_CAST_L2D(REG_RESULT_PACKED, s1);
2382                                         else
2383                                                 M_CAST_I2F(REG_RESULT, s1);
2384                                 }
2385 #endif /* !defined(ENABLE_SOFTFLOAT) */
2386
2387                                 emit_store_dst(jd, iptr, s1);
2388                         }
2389                         break;
2390
2391                 case ICMD_CHECKCAST:  /* ..., objectref ==> ..., objectref            */
2392
2393                         if (!(iptr->flags.bits & INS_FLAG_ARRAY)) {
2394                                 /* object type cast-check */
2395
2396                         classinfo *super;
2397                         s4         superindex;
2398
2399                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2400                                 super      = NULL;
2401                                 superindex = 0;
2402                         }
2403                         else {
2404                                 super      = iptr->sx.s23.s3.c.cls;
2405                                 superindex = super->index;
2406                         }
2407
2408                                 if ((super == NULL) || !(super->flags & ACC_INTERFACE))
2409                                         CODEGEN_CRITICAL_SECTION_NEW;
2410
2411                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2412
2413                         /* if class is not resolved, check which code to call */
2414
2415                         if (super == NULL) {
2416                                 M_TST(s1, s1);
2417                                 emit_label_beq(cd, BRANCH_LABEL_1);
2418
2419                                 disp = dseg_add_unique_s4(cd, 0); /* super->flags */
2420                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_flags,
2421                                                     iptr->sx.s23.s3.c.ref, disp);
2422
2423                                 M_DSEG_LOAD(REG_ITMP2, disp);
2424                                 disp = dseg_add_s4(cd, ACC_INTERFACE);
2425                                 M_DSEG_LOAD(REG_ITMP3, disp);
2426                                 M_TST(REG_ITMP2, REG_ITMP3);
2427                                 emit_label_beq(cd, BRANCH_LABEL_2);
2428                         }
2429
2430                         /* interface checkcast code */
2431
2432                         if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2433                                 if ((super == NULL) || !IS_IMM(superindex)) {
2434                                         disp = dseg_add_unique_s4(cd, superindex);
2435                                 }
2436                                 if (super == NULL) {
2437                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_index,
2438                                                             iptr->sx.s23.s3.c.ref, disp);
2439                                 }
2440                                 else {
2441                                         M_TST(s1, s1);
2442                                         emit_label_beq(cd, BRANCH_LABEL_3);
2443                                 }
2444
2445                                 M_LDR_INTERN(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
2446                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, interfacetablelength));
2447
2448                                 /* we put unresolved or non-immediate superindices onto dseg */
2449                                 if ((super == NULL) || !IS_IMM(superindex)) {
2450                                         /* disp was computed before we added the patcher */
2451                                         M_DSEG_LOAD(REG_ITMP2, disp);
2452                                         M_CMP(REG_ITMP3, REG_ITMP2);
2453                                 } else {
2454                                         assert(IS_IMM(superindex));
2455                                         M_CMP_IMM(REG_ITMP3, superindex);
2456                                 }
2457
2458                                 emit_classcast_check(cd, iptr, BRANCH_LE, REG_ITMP3, s1);
2459
2460                                 /* if we loaded the superindex out of the dseg above, we do
2461                                    things differently here! */
2462                                 if ((super == NULL) || !IS_IMM(superindex)) {
2463
2464                                         M_LDR_INTERN(REG_ITMP3, s1, OFFSET(java_object_t, vftbl));
2465
2466                                         /* this assumes something */
2467                                         assert(OFFSET(vftbl_t, interfacetable[0]) == 0);
2468
2469                                         /* this does: REG_ITMP3 - superindex * sizeof(methodptr*) */
2470                                         assert(sizeof(methodptr*) == 4);
2471                                         M_SUB(REG_ITMP2, REG_ITMP3, REG_LSL(REG_ITMP2, 2));
2472
2473                                         s2 = 0;
2474
2475                                 } else {
2476
2477                                         s2 = OFFSET(vftbl_t, interfacetable[0]) -
2478                                                                 superindex * sizeof(methodptr*);
2479
2480                                 }
2481
2482                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, s2);
2483                                 M_TST(REG_ITMP3, REG_ITMP3);
2484                                 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_ITMP3, s1);
2485
2486                                 if (super == NULL)
2487                                         emit_label_br(cd, BRANCH_LABEL_4);
2488                                 else
2489                                         emit_label(cd, BRANCH_LABEL_3);
2490                         }
2491
2492                         /* class checkcast code */
2493
2494                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2495                                 if (super == NULL) {
2496                                         emit_label(cd, BRANCH_LABEL_2);
2497
2498                                         disp = dseg_add_unique_address(cd, NULL);
2499
2500                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_vftbl,
2501                                                             iptr->sx.s23.s3.c.ref,
2502                                                                                 disp);
2503                                 }
2504                                 else {
2505                                         disp = dseg_add_address(cd, super->vftbl);
2506
2507                                         M_TST(s1, s1);
2508                                         emit_label_beq(cd, BRANCH_LABEL_5);
2509                                 }
2510
2511                                 M_LDR_INTERN(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
2512                                 M_DSEG_LOAD(REG_ITMP3, disp);
2513
2514                                 CODEGEN_CRITICAL_SECTION_START;
2515
2516                                 M_LDR_INTERN(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, baseval));
2517                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, baseval));
2518                                 M_SUB(REG_ITMP2, REG_ITMP2, REG_ITMP3);
2519                                 M_DSEG_LOAD(REG_ITMP3, disp);
2520                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, diffval));
2521
2522                                 CODEGEN_CRITICAL_SECTION_END;
2523
2524                                 M_CMP(REG_ITMP2, REG_ITMP3);
2525                                 emit_classcast_check(cd, iptr, BRANCH_UGT, 0, s1);
2526
2527                                 if (super != NULL)
2528                                         emit_label(cd, BRANCH_LABEL_5);
2529                         }
2530
2531                         if (super == NULL) {
2532                                 emit_label(cd, BRANCH_LABEL_1);
2533                                 emit_label(cd, BRANCH_LABEL_4);
2534                         }
2535
2536                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
2537                         }
2538                         else {
2539                                 /* array type cast-check */
2540
2541                                 s1 = emit_load_s1(jd, iptr, REG_A0);
2542                                 M_INTMOVE(s1, REG_A0);
2543
2544                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2545                                         disp = dseg_add_unique_address(cd, NULL);
2546
2547                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
2548                                                                                 iptr->sx.s23.s3.c.ref,
2549                                                                                 disp);
2550                                 }
2551                                 else
2552                                         disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2553
2554                                 M_DSEG_LOAD(REG_A1, disp);
2555                                 disp = dseg_add_functionptr(cd, BUILTIN_arraycheckcast);
2556                                 M_DSEG_BRANCH(disp);
2557
2558                                 /* recompute pv */
2559                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2560                                 M_RECOMPUTE_PV(disp);
2561
2562                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2563                                 M_TST(REG_RESULT, REG_RESULT);
2564                                 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_RESULT, s1);
2565
2566                                 d = codegen_reg_of_dst(jd, iptr, s1);
2567                         }
2568
2569                         M_INTMOVE(s1, d);
2570                         emit_store_dst(jd, iptr, d);
2571                         break;
2572
2573                 case ICMD_INSTANCEOF: /* ..., objectref ==> ..., intresult            */
2574
2575                         {
2576                         classinfo *super;
2577                         s4         superindex;
2578
2579                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2580                                 super      = NULL;
2581                                 superindex = 0;
2582                         }
2583                         else {
2584                                 super      = iptr->sx.s23.s3.c.cls;
2585                                 superindex = super->index;
2586                         }
2587
2588                         if ((super == NULL) || !(super->flags & ACC_INTERFACE))
2589                                 CODEGEN_CRITICAL_SECTION_NEW;
2590
2591                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2592                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
2593
2594                         if (s1 == d) {
2595                                 M_MOV(REG_ITMP1, s1);
2596                                 s1 = REG_ITMP1;
2597                         }
2598
2599                         /* if class is not resolved, check which code to call */
2600
2601                         if (super == NULL) {
2602                                 M_EOR(d, d, d);
2603
2604                                 M_TST(s1, s1);
2605                                 emit_label_beq(cd, BRANCH_LABEL_1);
2606
2607                                 disp = dseg_add_unique_s4(cd, 0); /* super->flags */
2608                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_flags,
2609                                                     iptr->sx.s23.s3.c.ref, disp);
2610
2611                                 M_DSEG_LOAD(REG_ITMP2, disp);
2612                                 disp = dseg_add_s4(cd, ACC_INTERFACE);
2613                                 M_DSEG_LOAD(REG_ITMP3, disp);
2614                                 M_TST(REG_ITMP2, REG_ITMP3);
2615                                 emit_label_beq(cd, BRANCH_LABEL_2);
2616                         }
2617
2618                         /* interface checkcast code */
2619
2620                         if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2621                                 if ((super == NULL) || !IS_IMM(superindex)) {
2622                                         disp = dseg_add_unique_s4(cd, superindex);
2623                                 }
2624                                 if (super == NULL) {
2625                                         /* If d == REG_ITMP2, then it's destroyed in check
2626                                            code above.  */
2627                                         if (d == REG_ITMP2)
2628                                                 M_EOR(d, d, d);
2629
2630                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_index,
2631                                                             iptr->sx.s23.s3.c.ref, disp);
2632                                 }
2633                                 else {
2634                                         M_EOR(d, d, d);
2635                                         M_TST(s1, s1);
2636                                         emit_label_beq(cd, BRANCH_LABEL_3);
2637                                 }
2638
2639                                 M_LDR_INTERN(REG_ITMP1, s1, OFFSET(java_object_t, vftbl));
2640                                 M_LDR_INTERN(REG_ITMP3,
2641                                                          REG_ITMP1, OFFSET(vftbl_t, interfacetablelength));
2642
2643                                 /* we put unresolved or non-immediate superindices onto dseg
2644                                    and do things slightly different */
2645                                 if ((super == NULL) || !IS_IMM(superindex)) {
2646                                         /* disp was computed before we added the patcher */
2647                                         M_DSEG_LOAD(REG_ITMP2, disp);
2648                                         M_CMP(REG_ITMP3, REG_ITMP2);
2649
2650                                         if (d == REG_ITMP2) {
2651                                                 M_EORLE(d, d, d);
2652                                                 M_BLE(4);
2653                                         } else {
2654                                                 M_BLE(3);
2655                                         }
2656
2657                                         /* this assumes something */
2658                                         assert(OFFSET(vftbl_t, interfacetable[0]) == 0);
2659
2660                                         /* this does: REG_ITMP3 - superindex * sizeof(methodptr*) */
2661                                         assert(sizeof(methodptr*) == 4);
2662                                         M_SUB(REG_ITMP1, REG_ITMP1, REG_LSL(REG_ITMP2, 2));
2663
2664                                         if (d == REG_ITMP2) {
2665                                                 M_EOR(d, d, d);
2666                                         }
2667
2668                                         s2 = 0;
2669
2670                                 } else {
2671                                         assert(IS_IMM(superindex));
2672                                         M_CMP_IMM(REG_ITMP3, superindex);
2673
2674                                         M_BLE(2);
2675
2676                                         s2 = OFFSET(vftbl_t, interfacetable[0]) -
2677                                                 superindex * sizeof(methodptr*);
2678
2679                                 }
2680
2681                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP1, s2);
2682                                 M_TST(REG_ITMP3, REG_ITMP3);
2683                                 M_MOVNE_IMM(1, d);
2684
2685                                 if (super == NULL)
2686                                         emit_label_br(cd, BRANCH_LABEL_4);
2687                                 else
2688                                         emit_label(cd, BRANCH_LABEL_3);
2689                         }
2690
2691                         /* class checkcast code */
2692
2693                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2694                                 if (super == NULL) {
2695                                         emit_label(cd, BRANCH_LABEL_2);
2696
2697                                         disp = dseg_add_unique_address(cd, NULL);
2698
2699                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_vftbl,
2700                                                             iptr->sx.s23.s3.c.ref, disp);
2701                                 }
2702                                 else {
2703                                         disp = dseg_add_address(cd, super->vftbl);
2704
2705                                         M_EOR(d, d, d);
2706                                         M_TST(s1, s1);
2707                                         emit_label_beq(cd, BRANCH_LABEL_5);
2708                                 }
2709
2710                                 M_LDR_INTERN(REG_ITMP1, s1, OFFSET(java_object_t, vftbl));
2711                                 M_DSEG_LOAD(REG_ITMP2, disp);
2712
2713                                 CODEGEN_CRITICAL_SECTION_START;
2714
2715                                 M_LDR_INTERN(REG_ITMP1, REG_ITMP1, OFFSET(vftbl_t, baseval));
2716                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2717                                 M_LDR_INTERN(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2718
2719                                 CODEGEN_CRITICAL_SECTION_END;
2720
2721                                 M_SUB(REG_ITMP1, REG_ITMP1, REG_ITMP3);
2722                                 M_CMP(REG_ITMP1, REG_ITMP2);
2723                                 /* If d == REG_ITMP2, then it's destroyed */
2724                                 if (d == REG_ITMP2)
2725                                         M_EOR(d, d, d);
2726                                 M_MOVLS_IMM(1, d);
2727
2728                                 if (super != NULL)
2729                                         emit_label(cd, BRANCH_LABEL_5);
2730                         }
2731
2732                         if (super == NULL) {
2733                                 emit_label(cd, BRANCH_LABEL_1);
2734                                 emit_label(cd, BRANCH_LABEL_4);
2735                         }
2736
2737                         }
2738
2739                         emit_store_dst(jd, iptr, d);
2740                         break;
2741
2742                 case ICMD_MULTIANEWARRAY:/* ..., cnt1, [cnt2, ...] ==> ..., arrayref  */
2743
2744                         /* copy sizes to stack if necessary  */
2745
2746                         MCODECHECK((iptr->s1.argcount << 1) + 64);
2747
2748                         for (s1 = iptr->s1.argcount; --s1 >= 0; ) {
2749
2750                                 var = VAR(iptr->sx.s23.s2.args[s1]);
2751
2752                                 /* copy SAVEDVAR sizes to stack */
2753
2754                                 if (!(var->flags & PREALLOC)) {
2755                                         s2 = emit_load(jd, iptr, var, REG_ITMP1);
2756                                         M_STR(s2, REG_SP, s1 * 4);
2757                                 }
2758                         }
2759
2760                         /* a0 = dimension count */
2761
2762                         assert(IS_IMM(iptr->s1.argcount));
2763                         M_MOV_IMM(REG_A0, iptr->s1.argcount);
2764
2765                         /* is patcher function set? */
2766
2767                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2768                                 disp = dseg_add_unique_address(cd, NULL);
2769
2770                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
2771                                                                         iptr->sx.s23.s3.c.ref, disp);
2772                         }
2773                         else
2774                                 disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2775
2776                         /* a1 = arraydescriptor */
2777
2778                         M_DSEG_LOAD(REG_A1, disp);
2779
2780                         /* a2 = pointer to dimensions = stack pointer */
2781
2782                         M_INTMOVE(REG_SP, REG_A2);
2783
2784                         /* call builtin_multianewarray here */
2785
2786                         disp = dseg_add_functionptr(cd, BUILTIN_multianewarray);
2787                         M_DSEG_BRANCH(disp);
2788
2789                         /* recompute pv */
2790
2791                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2792                         M_RECOMPUTE_PV(s1);
2793
2794                         /* check for exception before result assignment */
2795
2796                         emit_exception_check(cd, iptr);
2797
2798                         /* get arrayref */
2799
2800                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2801                         M_INTMOVE(REG_RESULT, d);
2802                         emit_store_dst(jd, iptr, d);
2803                         break;
2804
2805                 case ICMD_CHECKNULL:  /* ..., objectref  ==> ..., objectref           */
2806
2807                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2808                         emit_nullpointer_check(cd, iptr, s1);
2809                         break;
2810
2811                 default:
2812                         exceptions_throw_internalerror("Unknown ICMD %d during code generation",
2813                                                                                    iptr->opc);
2814                         return false;
2815                 } /* the big switch */
2816
2817                 } /* for all instructions */
2818
2819         } /* for all basic blocks */
2820
2821         /* generate traps */
2822
2823         emit_patcher_traps(jd);
2824
2825         /* everything's ok */
2826
2827         return true;
2828 }
2829
2830
2831 /* codegen_emit_stub_compiler **************************************************
2832
2833    Emits a stub routine which calls the compiler.
2834
2835 *******************************************************************************/
2836
2837 void codegen_emit_stub_compiler(jitdata *jd)
2838 {
2839         methodinfo  *m;
2840         codegendata *cd;
2841
2842         /* get required compiler data */
2843
2844         m  = jd->m;
2845         cd = jd->cd;
2846
2847         /* code for the stub */
2848
2849         M_LDR_INTERN(REG_ITMP1, REG_PC, -(2 * 4 + 2 * SIZEOF_VOID_P));
2850         M_LDR_INTERN(REG_PC, REG_PC, -(3 * 4 + 3 * SIZEOF_VOID_P));
2851 }
2852
2853
2854 /* codegen_emit_stub_native ****************************************************
2855
2856    Emits a stub routine which calls a native method.
2857
2858 *******************************************************************************/
2859
2860 void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f, int skipparams)
2861 {
2862         methodinfo  *m;
2863         codeinfo    *code;
2864         codegendata *cd;
2865         methoddesc  *md;
2866         s4           i, j;
2867         s4           t;
2868         int          s1, s2;
2869         int          disp;
2870
2871         /* get required compiler data */
2872
2873         m    = jd->m;
2874         code = jd->code;
2875         cd   = jd->cd;
2876
2877         /* initialize variables */
2878
2879         md = m->parseddesc;
2880
2881         /* calculate stackframe size */
2882
2883         cd->stackframesize =
2884                 4 +                                                /* return address  */
2885                 sizeof(stackframeinfo_t) +                         /* stackframeinfo  */
2886                 sizeof(localref_table) +                           /* localref_table  */
2887                 nmd->memuse * 4;                                   /* stack arguments */
2888
2889         /* align stack to 8-byte */
2890
2891         cd->stackframesize = (cd->stackframesize + 4) & ~4;
2892
2893         /* create method header */
2894
2895         (void) dseg_add_unique_address(cd, code);              /* CodeinfoPointer */
2896         (void) dseg_add_unique_s4(cd, cd->stackframesize);     /* FrameSize       */
2897         (void) dseg_add_unique_s4(cd, 0);                      /* IsLeaf          */
2898         (void) dseg_add_unique_s4(cd, 0);                      /* IntSave         */
2899         (void) dseg_add_unique_s4(cd, 0);                      /* FltSave         */
2900
2901         /* generate stub code */
2902
2903         M_STMFD(1<<REG_LR, REG_SP);
2904         M_SUB_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - 1);
2905
2906 #if !defined(NDEBUG)
2907         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
2908                 emit_verbosecall_enter(jd);
2909 #endif
2910
2911 #if defined(ENABLE_GC_CACAO)
2912         /* Save callee saved integer registers in stackframeinfo (GC may
2913            need to recover them during a collection). */
2914
2915         disp = cd->stackframesize - SIZEOF_VOID_P - sizeof(stackframeinfo_t) +
2916                 OFFSET(stackframeinfo_t, intregs);
2917
2918         for (i = 0; i < INT_SAV_CNT; i++)
2919                 M_STR_INTERN(abi_registers_integer_saved[i], REG_SP, disp + i * 4);
2920 #endif
2921
2922         /* Save integer and float argument registers (these are 4
2923            registers, stack is 8-byte aligned). */
2924
2925         M_STMFD(BITMASK_ARGS, REG_SP);
2926         /* TODO: floating point */
2927
2928         /* create native stackframe info */
2929
2930         M_ADD_IMM(REG_A0, REG_SP, 4*4);
2931         M_MOV(REG_A1, REG_PV);
2932         disp = dseg_add_functionptr(cd, codegen_start_native_call);
2933         M_DSEG_BRANCH(disp);
2934
2935         /* recompute pv */
2936
2937         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2938         M_RECOMPUTE_PV(s1);
2939
2940         /* remember class argument */
2941
2942         if (m->flags & ACC_STATIC)
2943                 M_MOV(REG_ITMP3, REG_RESULT);
2944
2945         /* Restore integer and float argument registers (these are 4
2946            registers, stack is 8-byte aligned). */
2947
2948         M_LDMFD(BITMASK_ARGS, REG_SP);
2949         /* TODO: floating point */
2950
2951         /* copy or spill arguments to new locations */
2952         /* ATTENTION: the ARM has only integer argument registers! */
2953
2954         for (i = md->paramcount - 1, j = i + skipparams; i >= 0; i--, j--) {
2955                 t = md->paramtypes[i].type;
2956
2957                 if (!md->params[i].inmemory) {
2958                         s1 = md->params[i].regoff;
2959                         s2 = nmd->params[j].regoff;
2960
2961                         if (!nmd->params[j].inmemory) {
2962 #if !defined(__ARM_EABI__)
2963                                 SPLIT_OPEN(t, s2, REG_ITMP1);
2964 #endif
2965
2966                                 if (IS_2_WORD_TYPE(t))
2967                                         M_LNGMOVE(s1, s2);
2968                                 else
2969                                         M_INTMOVE(s1, s2);
2970
2971 #if !defined(__ARM_EABI__)
2972                                 SPLIT_STORE_AND_CLOSE(t, s2, 0);
2973 #endif
2974                         }
2975                         else {
2976                                 if (IS_2_WORD_TYPE(t))
2977                                         M_LST(s1, REG_SP, s2);
2978                                 else
2979                                         M_IST(s1, REG_SP, s2);
2980                         }
2981                 }
2982                 else {
2983                         s1 = md->params[i].regoff + cd->stackframesize;
2984                         s2 = nmd->params[j].regoff;
2985
2986                         if (IS_2_WORD_TYPE(t)) {
2987                                 M_LLD(REG_ITMP12_PACKED, REG_SP, s1);
2988                                 M_LST(REG_ITMP12_PACKED, REG_SP, s2);
2989                         }
2990                         else {
2991                                 M_ILD(REG_ITMP1, REG_SP, s1);
2992                                 M_IST(REG_ITMP1, REG_SP, s2);
2993                         }
2994                 }
2995         }
2996
2997         /* Handle native Java methods. */
2998
2999         if (m->flags & ACC_NATIVE) {
3000                 /* put class into second argument register */
3001
3002                 if (m->flags & ACC_STATIC)
3003                         M_MOV(REG_A1, REG_ITMP3);
3004
3005                 /* put env into first argument register */
3006
3007                 disp = dseg_add_address(cd, _Jv_env);
3008                 M_DSEG_LOAD(REG_A0, disp);
3009         }
3010
3011         /* Call the native function. */
3012
3013         disp = dseg_add_functionptr(cd, f);
3014         M_DSEG_BRANCH(disp);
3015
3016         /* recompute pv */
3017         /* TODO: this is only needed because of the tracer ... do we
3018            really need it? */
3019
3020         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3021         M_RECOMPUTE_PV(s1);
3022
3023 #if !defined(__SOFTFP__)
3024         /* TODO: this is only a hack, since we use R0/R1 for float return! */
3025         /* this depends on gcc; it is independent from our ENABLE_SOFTFLOAT define */
3026         if (md->returntype.type != TYPE_VOID && IS_FLT_DBL_TYPE(md->returntype.type)) {
3027 #if 0 && !defined(NDEBUG)
3028                 dolog("NATIVESTUB that returns float or double (%s.%s)", m->class->name->text, m->name->text);
3029 #endif
3030                 /* we cannot use this macro, since it is not defined in ENABLE_SOFTFLOAT */
3031                 /* M_CAST_FLT_TO_INT_TYPED(md->returntype.type, REG_FRESULT, REG_RESULT_TYPED(md->returntype.type)); */
3032                 if (IS_2_WORD_TYPE(md->returntype.type)) {
3033                         DCD(0xed2d8102); /* stfd    f0, [sp, #-8]! */
3034                         M_LDRD_UPDATE(REG_RESULT_PACKED, REG_SP, 8);
3035                 } else {
3036                         DCD(0xed2d0101); /* stfs    f0, [sp, #-4]!*/
3037                         M_LDR_UPDATE(REG_RESULT, REG_SP, 4);
3038                 }
3039         }
3040 #endif
3041
3042 #if !defined(NDEBUG)
3043         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
3044                 emit_verbosecall_exit(jd);
3045 #endif
3046
3047         /* remove native stackframe info */
3048         /* TODO: improve this store/load */
3049
3050         M_STMFD(BITMASK_RESULT, REG_SP);
3051
3052         M_ADD_IMM(REG_A0, REG_SP, 2*4);
3053         M_MOV(REG_A1, REG_PV);
3054         disp = dseg_add_functionptr(cd, codegen_finish_native_call);
3055         M_DSEG_BRANCH(disp);
3056         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3057         M_RECOMPUTE_PV(s1);
3058
3059         M_MOV(REG_ITMP1_XPTR, REG_RESULT);
3060         M_LDMFD(BITMASK_RESULT, REG_SP);
3061
3062 #if defined(ENABLE_GC_CACAO)
3063         /* restore callee saved int registers from stackframeinfo (GC might have  */
3064         /* modified them during a collection).                                    */
3065
3066         disp = cd->stackframesize - SIZEOF_VOID_P - sizeof(stackframeinfo_t) +
3067                 OFFSET(stackframeinfo_t, intregs);
3068
3069         for (i = 0; i < INT_SAV_CNT; i++)
3070                 M_LDR_INTERN(abi_registers_integer_saved[i], REG_SP, disp + i * 4);
3071 #endif
3072
3073         /* finish stub code, but do not yet return to caller */
3074
3075         M_ADD_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - 1);
3076         M_LDMFD(1<<REG_LR, REG_SP);
3077
3078         /* check for exception */
3079
3080         M_TST(REG_ITMP1_XPTR, REG_ITMP1_XPTR);
3081         M_MOVEQ(REG_LR, REG_PC);            /* if no exception, return to caller  */
3082
3083         /* handle exception here */
3084
3085         M_SUB_IMM(REG_ITMP2_XPC, REG_LR, 4);/* move fault address into xpc        */
3086
3087         disp = dseg_add_functionptr(cd, asm_handle_nat_exception);
3088         M_DSEG_LOAD(REG_ITMP3, disp);       /* load asm exception handler address */
3089         M_MOV(REG_PC, REG_ITMP3);           /* jump to asm exception handler      */
3090
3091         /* generate patcher stubs */
3092
3093         emit_patcher_traps(jd);
3094 }
3095
3096
3097 /* asm_debug *******************************************************************
3098
3099    Lazy debugger!
3100
3101 *******************************************************************************/
3102
3103 void asm_debug(int a1, int a2, int a3, int a4)
3104 {
3105         printf("===> i am going to exit after this debugging message!\n");
3106         printf("got asm_debug(%p, %p, %p, %p)\n",(void*)a1,(void*)a2,(void*)a3,(void*)a4);
3107         vm_abort("leave you now");
3108 }
3109
3110
3111 /*
3112  * These are local overrides for various environment variables in Emacs.
3113  * Please do not remove this and leave it at the end of the file, where
3114  * Emacs will automagically detect them.
3115  * ---------------------------------------------------------------------
3116  * Local variables:
3117  * mode: c
3118  * indent-tabs-mode: t
3119  * c-basic-offset: 4
3120  * tab-width: 4
3121  * End:
3122  * vim:noexpandtab:sw=4:ts=4:
3123  */