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, 2008
   4    CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO
   5
   6    This file is part of CACAO.
   7
   8    This program is free software; you can redistribute it and/or
   9    modify it under the terms of the GNU General Public License as
  10    published by the Free Software Foundation; either version 2, or (at
  11    your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful, but
  14    WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16    General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  21    02110-1301, USA.
  22
  23 */
  24
  25
  26 #include "config.h"
  27
  28 #include <assert.h>
  29 #include <stdio.h>
  30
  31 #include "vm/types.h"
  32
  33 #include "md-abi.h"
  34
  35 #include "vm/jit/arm/arch.h"
  36 #include "vm/jit/arm/codegen.h"
  37
  38 #include "mm/memory.h"
  39
  40 #include "native/localref.h"
  41 #include "native/native.h"
  42
  43 #include "threads/lock-common.h"
  44
  45 #include "vm/builtin.h"
  46 #include "vm/exceptions.h"
  47 #include "vm/global.h"
  48 #include "vm/vm.hpp"
  49
  50 #include "vm/jit/abi.h"
  51 #include "vm/jit/asmpart.h"
  52 #include "vm/jit/codegen-common.h"
  53 #include "vm/jit/dseg.h"
  54 #include "vm/jit/emit-common.h"
  55 #include "vm/jit/jit.h"
  56 #include "vm/jit/linenumbertable.h"
  57 #include "vm/jit/methodheader.h"
  58 #include "vm/jit/parse.h"
  59 #include "vm/jit/patcher-common.h"
  60 #include "vm/jit/reg.h"
  61
  62 #if defined(ENABLE_LSRA)
  63 #include "vm/jit/allocator/lsra.h"
  64 #endif
  65
  66 #include "vmcore/loader.h"
  67 #include "vmcore/options.h"
  68
  69
  70 /* codegen_emit ****************************************************************
  71
  72    Generates machine code.
  73
  74 *******************************************************************************/
  75
  76 bool codegen_emit(jitdata *jd)
  77 {
  78         methodinfo         *m;
  79         codeinfo           *code;
  80         codegendata        *cd;
  81         registerdata       *rd;
  82         s4              i, t, len;
  83         s4              s1, s2, s3, d;
  84         s4              disp;
  85         varinfo        *var;
  86         basicblock     *bptr;
  87         instruction    *iptr;
  88
  89         s4              spilledregs_num;
  90         s4              savedregs_num;
  91         u2              savedregs_bitmask;
  92         u2              currentline;
  93
  94         methodinfo         *lm;             /* local methodinfo for ICMD_INVOKE* */
  95         unresolved_method  *um;
  96         builtintable_entry *bte;
  97         methoddesc         *md;
  98         fieldinfo          *fi;
  99         unresolved_field   *uf;
 100         int                 fieldtype;
 101         int                 varindex;
 102
 103         /* get required compiler data */
 104
 105         m    = jd->m;
 106         code = jd->code;
 107         cd   = jd->cd;
 108         rd   = jd->rd;
 109
 110         /* prevent compiler warnings */
 111
 112         lm  = NULL;
 113         um  = NULL;
 114         bte = NULL;
 115
 116         fieldtype = -1;
 117
 118         /* space to save used callee saved registers */
 119
 120         savedregs_num = code_is_leafmethod(code) ? 0 : 1; /* space to save the LR */
 121
 122         savedregs_num += (INT_SAV_CNT - rd->savintreguse);
 123         /*savedregs_num += (FLT_SAV_CNT - rd->savfltreguse);*/
 124         assert((FLT_SAV_CNT - rd->savfltreguse) == 0);
 125
 126         spilledregs_num = rd->memuse;
 127
 128 #if defined(ENABLE_THREADS)        /* space to save argument of monitor_enter */
 129         if (checksync && code_is_synchronized(code))
 130                 spilledregs_num++;
 131 #endif
 132
 133         cd->stackframesize = spilledregs_num * 8 + savedregs_num * 4;
 134
 135         /* XXX QUICK FIX: We shouldn't align the stack in Java code, but
 136            only in native stubs. */
 137         /* align stack to 8-byte */
 138
 139         cd->stackframesize = (cd->stackframesize + 4) & ~4;
 140
 141         /* SECTION: Method Header */
 142         /* create method header */
 143
 144         (void) dseg_add_unique_address(cd, code);              /* CodeinfoPointer */
 145         (void) dseg_add_unique_s4(cd, cd->stackframesize);     /* FrameSize       */
 146
 147         code->synchronizedoffset = rd->memuse * 8;
 148
 149         /* REMOVEME: We still need it for exception handling in assembler. */
 150
 151         if (code_is_leafmethod(code))
 152                 (void) dseg_add_unique_s4(cd, 1);
 153         else
 154                 (void) dseg_add_unique_s4(cd, 0);
 155
 156         (void) dseg_add_unique_s4(cd, INT_SAV_CNT - rd->savintreguse); /* IntSave */
 157         (void) dseg_add_unique_s4(cd, FLT_SAV_CNT - rd->savfltreguse); /* FltSave */
 158
 159         /* save return address and used callee saved registers */
 160
 161         savedregs_bitmask = 0;
 162
 163         if (!code_is_leafmethod(code))
 164                 savedregs_bitmask = (1<<REG_LR);
 165
 166         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--)
 167                 savedregs_bitmask |= (1<<(rd->savintregs[i]));
 168
 169 #if !defined(NDEBUG)
 170         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
 171                 log_text("!!! CODEGEN: floating-point callee saved registers are not saved to stack (SEVERE! STACK IS MESSED UP!)");
 172                 /* TODO: floating-point */
 173         }
 174 #endif
 175
 176         if (savedregs_bitmask)
 177                 M_STMFD(savedregs_bitmask, REG_SP);
 178
 179         /* create additional stack frame for spilled variables (if necessary) */
 180
 181         if ((cd->stackframesize / 4 - savedregs_num) > 0)
 182                 M_SUB_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - savedregs_num);
 183
 184         /* take arguments out of register or stack frame */
 185
 186         md = m->parseddesc;
 187         for (i = 0, len = 0; i < md->paramcount; i++) {
 188                 s1 = md->params[i].regoff;
 189                 t = md->paramtypes[i].type;
 190
 191                 varindex = jd->local_map[len * 5 + t];
 192
 193                 len += (IS_2_WORD_TYPE(t)) ? 2 : 1;          /* 2 word type arguments */
 194
 195                 if (varindex == UNUSED)
 196                         continue;
 197
 198                 var = VAR(varindex);
 199
 200                 /* ATTENTION: we use interger registers for all arguments (even float) */
 201 #if !defined(ENABLE_SOFTFLOAT)
 202                 if (IS_INT_LNG_TYPE(t)) {
 203 #endif
 204                         if (!md->params[i].inmemory) {
 205                                 if (!(var->flags & INMEMORY)) {
 206                                         if (IS_2_WORD_TYPE(t))
 207                                                 M_LNGMOVE(s1, var->vv.regoff);
 208                                         else
 209                                                 M_INTMOVE(s1, var->vv.regoff);
 210                                 }
 211                                 else {
 212                                         if (IS_2_WORD_TYPE(t))
 213                                                 M_LST(s1, REG_SP, var->vv.regoff);
 214                                         else
 215                                                 M_IST(s1, REG_SP, var->vv.regoff);
 216                                 }
 217                         }
 218                         else {                                   /* stack arguments       */
 219                                 if (!(var->flags & INMEMORY)) {      /* stack arg -> register */
 220                                         if (IS_2_WORD_TYPE(t))
 221                                                 M_LLD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 222                                         else
 223                                                 M_ILD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 224                                 }
 225                                 else {                               /* stack arg -> spilled  */
 226                                         /* Reuse Memory Position on Caller Stack */
 227                                         var->vv.regoff = cd->stackframesize + s1;
 228                                 }
 229                         }
 230 #if !defined(ENABLE_SOFTFLOAT)
 231                 }
 232                 else {
 233                         if (!md->params[i].inmemory) {
 234                                 if (!(var->flags & INMEMORY)) {
 235                                         if (IS_2_WORD_TYPE(t))
 236                                                 M_CAST_L2D(s1, var->vv.regoff);
 237                                         else
 238                                                 M_CAST_I2F(s1, var->vv.regoff);
 239                                 }
 240                                 else {
 241                                         if (IS_2_WORD_TYPE(t))
 242                                                 M_LST(s1, REG_SP, var->vv.regoff);
 243                                         else
 244                                                 M_IST(s1, REG_SP, var->vv.regoff);
 245                                 }
 246                         }
 247                         else {
 248                                 if (!(var->flags & INMEMORY)) {
 249                                         if (IS_2_WORD_TYPE(t))
 250                                                 M_DLD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 251                                         else
 252                                                 M_FLD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 253                                 }
 254                                 else {
 255                                         /* Reuse Memory Position on Caller Stack */
 256                                         var->vv.regoff = cd->stackframesize + s1;
 257                                 }
 258                         }
 259                 }
 260 #endif /* !defined(ENABLE_SOFTFLOAT) */
 261         }
 262
 263 #if defined(ENABLE_THREADS)
 264         /* call monitorenter function */
 265
 266         if (checksync && code_is_synchronized(code)) {
 267                 /* stack offset for monitor argument */
 268
 269                 s1 = rd->memuse * 8;
 270
 271 # if !defined(NDEBUG)
 272                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 273                         M_STMFD(BITMASK_ARGS, REG_SP);
 274                         s1 += 4 * 4;
 275                 }
 276 # endif
 277
 278                 /* get the correct lock object */
 279
 280                 if (m->flags & ACC_STATIC) {
 281                         disp = dseg_add_address(cd, &m->clazz->object.header);
 282                         M_DSEG_LOAD(REG_A0, disp);
 283                 }
 284                 else {
 285                         emit_nullpointer_check_force(cd, iptr, REG_A0);
 286                 }
 287
 288                 M_STR(REG_A0, REG_SP, s1);
 289                 disp = dseg_add_functionptr(cd, LOCK_monitor_enter);
 290                 M_DSEG_BRANCH(disp);
 291                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
 292                 M_RECOMPUTE_PV(s1);
 293
 294 # if !defined(NDEBUG)
 295                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
 296                         M_LDMFD(BITMASK_ARGS, REG_SP);
 297 # endif
 298         }
 299 #endif
 300
 301 #if !defined(NDEBUG)
 302         /* call trace function */
 303
 304         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
 305                 emit_verbosecall_enter(jd);
 306 #endif
 307
 308         /* end of header generation */
 309
 310         /* create replacement points */
 311         REPLACEMENT_POINTS_INIT(cd, jd);
 312
 313         /* SECTION: ICMD Code Generation */
 314         /* for all basic blocks */
 315
 316         for (bptr = jd->basicblocks; bptr != NULL; bptr = bptr->next) {
 317
 318                 bptr->mpc = (s4) (cd->mcodeptr - cd->mcodebase);
 319
 320                 /* is this basic block reached? */
 321
 322                 if (bptr->flags < BBREACHED)
 323                         continue;
 324
 325                 /* branch resolving */
 326
 327                 codegen_resolve_branchrefs(cd, bptr);
 328
 329                 /* handle replacement points */
 330                 REPLACEMENT_POINT_BLOCK_START(cd, bptr);
 331
 332                 /* copy interface registers to their destination */
 333
 334                 len = bptr->indepth;
 335
 336                 MCODECHECK(64+len);
 337
 338 #if defined(ENABLE_LSRA)
 339                 if (opt_lsra) {
 340                 while (len) {
 341                         len--;
 342                         var = VAR(bptr->invars[len]);
 343                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 344                                 if (!(var->flags & INMEMORY))
 345                                         d= var->vv.regoff;
 346                                 else
 347                                         d=REG_ITMP1;
 348                                 M_INTMOVE(REG_ITMP1, d);
 349                                 emit_store(jd, NULL, var, d);
 350                         }
 351                 }
 352                 } else {
 353 #endif
 354                 while (len) {
 355                         len--;
 356                         var = VAR(bptr->invars[len]);
 357
 358                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 359                                 d = codegen_reg_of_var(0, var, REG_ITMP1);
 360                                 M_INTMOVE(REG_ITMP1, d);
 361                                 emit_store(jd, NULL, var, d);
 362                         }
 363                         else {
 364                                 assert((var->flags & INOUT));
 365                         }
 366                 }
 367 #if defined(ENABLE_LSRA)
 368                 }
 369 #endif
 370
 371                 /* for all instructions */
 372                 len = bptr->icount;
 373                 currentline = 0;
 374                 for (iptr = bptr->iinstr; len > 0; len--, iptr++) {
 375
 376                         /* add line number */
 377                         if (iptr->line != currentline) {
 378                                 linenumbertable_list_entry_add(cd, iptr->line);
 379                                 currentline = iptr->line;
 380                         }
 381
 382                         MCODECHECK(64);   /* an instruction usually needs < 64 words      */
 383
 384                 /* the big switch */
 385                 switch (iptr->opc) {
 386
 387                 case ICMD_NOP:        /* ...  ==> ...                                 */
 388                 case ICMD_POP:        /* ..., value  ==> ...                          */
 389                 case ICMD_POP2:       /* ..., value, value  ==> ...                   */
 390                         break;
 391
 392                 /* constant operations ************************************************/
 393
 394                 case ICMD_ICONST:     /* ...  ==> ..., constant                       */
 395
 396                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 397                         ICONST(d, iptr->sx.val.i);
 398                         emit_store_dst(jd, iptr, d);
 399                         break;
 400
 401                 case ICMD_ACONST:     /* ... ==> ..., constant                        */
 402
 403                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 404                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
 405                                 disp = dseg_add_unique_address(cd, NULL);
 406
 407                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
 408                                                     iptr->sx.val.c.ref, disp);
 409
 410                                 M_DSEG_LOAD(d, disp);
 411                         }
 412                         else {
 413                                 ICONST(d, (u4) iptr->sx.val.anyptr);
 414                         }
 415                         emit_store_dst(jd, iptr, d);
 416                         break;
 417
 418                 case ICMD_LCONST:     /* ...  ==> ..., constant                       */
 419
 420                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 421                         LCONST(d, iptr->sx.val.l);
 422                         emit_store_dst(jd, iptr, d);
 423                         break;
 424
 425                 case ICMD_FCONST:     /* ...  ==> ..., constant                       */
 426
 427 #if defined(ENABLE_SOFTFLOAT)
 428                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 429                         ICONST(d, iptr->sx.val.i);
 430                         emit_store_dst(jd, iptr, d);
 431 #else
 432                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 433                         FCONST(d, iptr->sx.val.f);
 434                         emit_store_dst(jd, iptr, d);
 435 #endif
 436                         break;
 437
 438                 case ICMD_DCONST:     /* ...  ==> ..., constant                       */
 439
 440 #if defined(ENABLE_SOFTFLOAT)
 441                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 442                         LCONST(d, iptr->sx.val.l);
 443                         emit_store_dst(jd, iptr, d);
 444 #else
 445                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 446                         DCONST(d, iptr->sx.val.d);
 447                         emit_store_dst(jd, iptr, d);
 448 #endif
 449                         break;
 450
 451
 452                 /* load/store/copy/move operations ************************************/
 453
 454                 case ICMD_ILOAD:      /* ...  ==> ..., content of local variable      */
 455                 case ICMD_ALOAD:      /* op1 = local variable                         */
 456                 case ICMD_FLOAD:
 457                 case ICMD_LLOAD:
 458                 case ICMD_DLOAD:
 459                 case ICMD_ISTORE:     /* ..., value  ==> ...                          */
 460                 case ICMD_FSTORE:
 461                 case ICMD_LSTORE:
 462                 case ICMD_DSTORE:
 463                 case ICMD_COPY:
 464                 case ICMD_MOVE:
 465
 466                         emit_copy(jd, iptr);
 467                         break;
 468
 469                 case ICMD_ASTORE:
 470
 471                         if (!(iptr->flags.bits & INS_FLAG_RETADDR))
 472                                 emit_copy(jd, iptr);
 473                         break;
 474
 475
 476                 /* integer operations *************************************************/
 477
 478                 case ICMD_INT2BYTE:   /* ..., value  ==> ..., value                   */
 479
 480                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 481                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 482                         M_MOV(d, REG_LSL(s1, 24));
 483                         M_MOV(d, REG_ASR(d, 24));
 484                         emit_store_dst(jd, iptr, d);
 485                         break;
 486
 487                 case ICMD_INT2CHAR:   /* ..., value  ==> ..., value                   */
 488
 489                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 490                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 491                         M_MOV(d, REG_LSL(s1, 16));
 492                         M_MOV(d, REG_LSR(d, 16)); /* ATTENTION: char is unsigned */
 493                         emit_store_dst(jd, iptr, d);
 494                         break;
 495
 496                 case ICMD_INT2SHORT:  /* ..., value  ==> ..., value                   */
 497
 498                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 499                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 500                         M_MOV(d, REG_LSL(s1, 16));
 501                         M_MOV(d, REG_ASR(d, 16));
 502                         emit_store_dst(jd, iptr, d);
 503                         break;
 504
 505                 case ICMD_I2L:        /* ..., value  ==> ..., value                   */
 506
 507                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 508                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 509                         M_INTMOVE(s1, GET_LOW_REG(d));
 510                         M_MOV(GET_HIGH_REG(d), REG_ASR(s1, 31));
 511                         emit_store_dst(jd, iptr, d);
 512                         break;
 513
 514                 case ICMD_L2I:        /* ..., value  ==> ..., value                   */
 515
 516                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 517                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 518                         M_INTMOVE(s1, d);
 519                         emit_store_dst(jd, iptr, d);
 520                         break;
 521
 522                 case ICMD_INEG:       /* ..., value  ==> ..., - value                 */
 523
 524                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 525                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 526                         M_RSB_IMM(d, s1, 0);
 527                         emit_store_dst(jd, iptr, d);
 528                         break;
 529
 530                 case ICMD_LNEG:       /* ..., value  ==> ..., - value                 */
 531
 532                         s1 = emit_load_s1(jd, iptr, REG_ITMP12_PACKED);
 533                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 534                         M_RSB_IMMS(GET_LOW_REG(d), GET_LOW_REG(s1), 0);
 535                         M_RSC_IMM(GET_HIGH_REG(d), GET_HIGH_REG(s1), 0);
 536                         emit_store_dst(jd, iptr, d);
 537                         break;
 538
 539                 case ICMD_IADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 540
 541                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 542                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 543                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 544                         M_ADD(d, s1, s2);
 545                         emit_store_dst(jd, iptr, d);
 546                         break;
 547
 548                 case ICMD_LADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 549
 550                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 551                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 552                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 553                         M_ADD_S(GET_LOW_REG(d), s1, s2);
 554                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 555                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 556                         M_ADC(GET_HIGH_REG(d), s1, s2);
 557                         emit_store_dst(jd, iptr, d);
 558                         break;
 559
 560                 case ICMD_IADDCONST:
 561                 case ICMD_IINC:
 562
 563                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 564                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 565
 566                         if (IS_IMM(iptr->sx.val.i)) {
 567                                 M_ADD_IMM(d, s1, iptr->sx.val.i);
 568                         } else if (IS_IMM(-iptr->sx.val.i)) {
 569                                 M_SUB_IMM(d, s1, (-iptr->sx.val.i));
 570                         } else {
 571                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 572                                 M_ADD(d, s1, REG_ITMP3);
 573                         }
 574
 575                         emit_store_dst(jd, iptr, d);
 576                         break;
 577
 578                 case ICMD_LADDCONST:  /* ..., value  ==> ..., value + constant        */
 579                                       /* sx.val.l = constant                          */
 580
 581                         s3 = iptr->sx.val.l & 0xffffffff;
 582                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 583                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 584                         if (IS_IMM(s3))
 585                                 M_ADD_IMMS(GET_LOW_REG(d), s1, s3);
 586                         else {
 587                                 ICONST(REG_ITMP3, s3);
 588                                 M_ADD_S(GET_LOW_REG(d), s1, REG_ITMP3);
 589                         }
 590                         s3 = iptr->sx.val.l >> 32;
 591                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP2);
 592                         if (IS_IMM(s3))
 593                                 M_ADC_IMM(GET_HIGH_REG(d), s1, s3);
 594                         else {
 595                                 ICONST(REG_ITMP3, s3);
 596                                 M_ADC(GET_HIGH_REG(d), s1, REG_ITMP3);
 597                         }
 598                         emit_store_dst(jd, iptr, d);
 599                         break;
 600
 601                 case ICMD_ISUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 602
 603                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 604                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 605                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 606                         M_SUB(d, s1, s2);
 607                         emit_store_dst(jd, iptr, d);
 608                         break;
 609
 610                 case ICMD_LSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 611
 612                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 613                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 614                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 615                         M_SUB_S(GET_LOW_REG(d), s1, s2);
 616                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 617                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 618                         M_SBC(GET_HIGH_REG(d), s1, s2);
 619                         emit_store_dst(jd, iptr, d);
 620                         break;
 621
 622                 case ICMD_ISUBCONST:  /* ..., value  ==> ..., value + constant        */
 623                                       /* sx.val.i = constant                          */
 624
 625                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 626                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 627                         if (IS_IMM(iptr->sx.val.i))
 628                                 M_SUB_IMM(d, s1, iptr->sx.val.i);
 629                         else {
 630                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 631                                 M_SUB(d, s1, REG_ITMP3);
 632                         }
 633                         emit_store_dst(jd, iptr, d);
 634                         break;
 635
 636                 case ICMD_LSUBCONST:  /* ..., value  ==> ..., value - constant        */
 637                                       /* sx.val.l = constant                          */
 638
 639                         s3 = iptr->sx.val.l & 0xffffffff;
 640                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 641                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 642                         if (IS_IMM(s3))
 643                                 M_SUB_IMMS(GET_LOW_REG(d), s1, s3);
 644                         else {
 645                                 ICONST(REG_ITMP3, s3);
 646                                 M_SUB_S(GET_LOW_REG(d), s1, REG_ITMP3);
 647                         }
 648                         s3 = iptr->sx.val.l >> 32;
 649                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP2);
 650                         if (IS_IMM(s3))
 651                                 M_SBC_IMM(GET_HIGH_REG(d), s1, s3);
 652                         else {
 653                                 ICONST(REG_ITMP3, s3);
 654                                 M_SBC(GET_HIGH_REG(d), s1, REG_ITMP3);
 655                         }
 656                         emit_store_dst(jd, iptr, d);
 657                         break;
 658
 659                 case ICMD_IMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 660
 661                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 662                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 663                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 664                         M_MUL(d, s1, s2);
 665                         emit_store_dst(jd, iptr, d);
 666                         break;
 667
 668                 case ICMD_IDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 669                 case ICMD_IREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 670
 671                         s1 = emit_load_s1(jd, iptr, REG_A0);
 672                         s2 = emit_load_s2(jd, iptr, REG_A1);
 673                         emit_arithmetic_check(cd, iptr, s2);
 674
 675                         /* move arguments into argument registers */
 676                         M_INTMOVE(s1, REG_A0);
 677                         M_INTMOVE(s2, REG_A1);
 678
 679                         /* call builtin function */
 680                         bte = iptr->sx.s23.s3.bte;
 681                         disp = dseg_add_functionptr(cd, bte->fp);
 682                         M_DSEG_BRANCH(disp);
 683
 684                         /* recompute pv */
 685                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
 686                         M_RECOMPUTE_PV(s1);
 687
 688                         /* move result into destination register */
 689                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
 690                         M_INTMOVE(REG_RESULT, d);
 691                         emit_store_dst(jd, iptr, d);
 692                         break;
 693
 694                 case ICMD_LDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 695                 case ICMD_LREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 696
 697                         /* move arguments into argument registers */
 698
 699                         s1 = emit_load_s1(jd, iptr, REG_A0_A1_PACKED);
 700                         s2 = emit_load_s2(jd, iptr, REG_A2_A3_PACKED);
 701                         /* XXX TODO: only do this if arithmetic check is really done! */
 702                         M_ORR(GET_HIGH_REG(s2), GET_LOW_REG(s2), REG_ITMP3);
 703                         emit_arithmetic_check(cd, iptr, REG_ITMP3);
 704
 705                         M_LNGMOVE(s1, REG_A0_A1_PACKED);
 706                         M_LNGMOVE(s2, REG_A2_A3_PACKED);
 707
 708                         /* call builtin function */
 709                         bte = iptr->sx.s23.s3.bte;
 710                         disp = dseg_add_functionptr(cd, bte->fp);
 711                         M_DSEG_BRANCH(disp);
 712
 713                         /* recompute pv */
 714                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
 715                         M_RECOMPUTE_PV(s1);
 716
 717                         /* move result into destination register */
 718                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
 719                         M_LNGMOVE(REG_RESULT_PACKED, d);
 720                         emit_store_dst(jd, iptr, d);
 721                         break;
 722
 723                 case ICMD_IMULPOW2:   /* ..., value  ==> ..., value * (2 ^ constant)  */
 724                                       /* sx.val.i = constant                          */
 725
 726                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 727                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 728                         M_MOV(d, REG_LSL(s1, iptr->sx.val.i));
 729                         emit_store_dst(jd, iptr, d);
 730                         break;
 731
 732                 case ICMD_IDIVPOW2:   /* ..., value  ==> ..., value / (2 ^ constant)  */
 733                                       /* sx.val.i = constant                          */
 734
 735                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 736                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 737                         /* this rounds towards 0 as java likes it */
 738                         M_MOV(REG_ITMP3, REG_ASR(s1, 31));
 739                         M_ADD(REG_ITMP3, s1, REG_LSR(REG_ITMP3, 32 - iptr->sx.val.i));
 740                         M_MOV(d, REG_ASR(REG_ITMP3, iptr->sx.val.i));
 741                         /* this rounds towards nearest, not java style */
 742                         /*M_MOV_S(d, REG_ASR(s1, iptr->sx.val.i));
 743                         M_ADCMI_IMM(d, d, 0);*/
 744                         emit_store_dst(jd, iptr, d);
 745                         break;
 746
 747                 case ICMD_IREMPOW2:   /* ..., value  ==> ..., value % constant        */
 748                                       /* sx.val.i = constant [ (2 ^ x) - 1 ]          */
 749
 750                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 751                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 752                         M_MOV_S(REG_ITMP1, s1);
 753                         M_RSBMI_IMM(REG_ITMP1, REG_ITMP1, 0);
 754                         if (IS_IMM(iptr->sx.val.i))
 755                                 M_AND_IMM(REG_ITMP1, iptr->sx.val.i, d);
 756                         else {
 757                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 758                                 M_AND(REG_ITMP1, REG_ITMP3, d);
 759                         }
 760                         M_RSBMI_IMM(d, d, 0);
 761                         emit_store_dst(jd, iptr, d);
 762                         break;
 763
 764                 case ICMD_ISHL:       /* ..., val1, val2  ==> ..., val1 << val2       */
 765
 766                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 767                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 768                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 769                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 770                         M_MOV(d, REG_LSL_REG(s1, REG_ITMP2));
 771                         emit_store_dst(jd, iptr, d);
 772                         break;
 773
 774                 case ICMD_ISHR:       /* ..., val1, val2  ==> ..., val1 >> val2       */
 775
 776                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 777                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 778                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 779                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 780                         M_MOV(d, REG_ASR_REG(s1, REG_ITMP2));
 781                         emit_store_dst(jd, iptr, d);
 782                         break;
 783
 784                 case ICMD_IUSHR:      /* ..., val1, val2  ==> ..., val1 >>> val2      */
 785
 786                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 787                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 788                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 789                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 790                         M_MOV(d, REG_LSR_REG(s1, REG_ITMP2));
 791                         emit_store_dst(jd, iptr, d);
 792                         break;
 793
 794                 case ICMD_ISHLCONST:  /* ..., value  ==> ..., value << constant       */
 795                                       /* sx.val.i = constant                          */
 796
 797                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 798                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 799                         M_MOV(d, REG_LSL(s1, iptr->sx.val.i & 0x1f));
 800                         emit_store_dst(jd, iptr, d);
 801                         break;
 802
 803                 case ICMD_ISHRCONST:  /* ..., value  ==> ..., value >> constant       */
 804                                       /* sx.val.i = constant                          */
 805
 806                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 807                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 808                         /* we need to check for zero here because arm interprets it as SHR by 32 */
 809                         if ((iptr->sx.val.i & 0x1f) == 0) {
 810                                 M_INTMOVE(s1, d);
 811                         } else {
 812                                 M_MOV(d, REG_ASR(s1, iptr->sx.val.i & 0x1f));
 813                         }
 814                         emit_store_dst(jd, iptr, d);
 815                         break;
 816
 817                 case ICMD_IUSHRCONST: /* ..., value  ==> ..., value >>> constant      */
 818                                       /* sx.val.i = constant                          */
 819
 820                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 821                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 822                         /* we need to check for zero here because arm interprets it as SHR by 32 */
 823                         if ((iptr->sx.val.i & 0x1f) == 0)
 824                                 M_INTMOVE(s1, d);
 825                         else
 826                                 M_MOV(d, REG_LSR(s1, iptr->sx.val.i & 0x1f));
 827                         emit_store_dst(jd, iptr, d);
 828                         break;
 829
 830                 case ICMD_IAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 831
 832                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 833                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 834                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 835                         M_AND(s1, s2, d);
 836                         emit_store_dst(jd, iptr, d);
 837                         break;
 838
 839                 case ICMD_LAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 840
 841                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 842                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 843                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 844                         M_AND(s1, s2, GET_LOW_REG(d));
 845                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 846                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 847                         M_AND(s1, s2, GET_HIGH_REG(d));
 848                         emit_store_dst(jd, iptr, d);
 849                         break;
 850
 851                 case ICMD_IOR:        /* ..., val1, val2  ==> ..., val1 | val2        */
 852
 853                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 854                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 855                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 856                         M_ORR(s1, s2, d);
 857                         emit_store_dst(jd, iptr, d);
 858                         break;
 859
 860                 case ICMD_LOR:       /* ..., val1, val2  ==> ..., val1 | val2        */
 861
 862                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 863                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 864                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 865                         M_ORR(s1, s2, GET_LOW_REG(d));
 866                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 867                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 868                         M_ORR(s1, s2, GET_HIGH_REG(d));
 869                         emit_store_dst(jd, iptr, d);
 870                         break;
 871
 872                 case ICMD_IXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
 873
 874                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 875                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 876                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 877                         M_EOR(s1, s2, d);
 878                         emit_store_dst(jd, iptr, d);
 879                         break;
 880
 881                 case ICMD_LXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
 882
 883                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 884                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 885                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 886                         M_EOR(s1, s2, GET_LOW_REG(d));
 887                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 888                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 889                         M_EOR(s1, s2, GET_HIGH_REG(d));
 890                         emit_store_dst(jd, iptr, d);
 891                         break;
 892
 893
 894         /* floating operations ************************************************/
 895
 896 #if !defined(ENABLE_SOFTFLOAT)
 897
 898                 case ICMD_FNEG:       /* ..., value  ==> ..., - value                 */
 899
 900                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 901                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 902                         M_FNEG(s1, d);
 903                         emit_store_dst(jd, iptr, d);
 904                         break;
 905
 906                 case ICMD_FADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 907
 908                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 909                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 910                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 911                         M_FADD(s1, s2, d);
 912                         emit_store_dst(jd, iptr, d);
 913                         break;
 914
 915                 case ICMD_FSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 916
 917                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 918                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 919                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 920                         M_FSUB(s1, s2, d);
 921                         emit_store_dst(jd, iptr, d);
 922                         break;
 923
 924                 case ICMD_FMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 925
 926                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 927                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 928                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 929                         M_FMUL(s1, s2, d);
 930                         emit_store_dst(jd, iptr, d);
 931                         break;
 932
 933                 case ICMD_FDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 934                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 935                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 936                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 937                         M_FDIV(s1, s2, d);
 938                         emit_store_dst(jd, iptr, d);
 939                         break;
 940
 941                 /* ATTENTION: Jave does not want IEEE behaviour in FREM, do
 942                    not use this */
 943
 944 #if 0
 945                 case ICMD_FREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 946
 947                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 948                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 949                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 950                         M_RMFS(d, s1, s2);
 951                         emit_store_dst(jd, iptr, d);
 952                         break;
 953 #endif
 954
 955                 case ICMD_DNEG:       /* ..., value  ==> ..., - value                 */
 956
 957                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 958                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 959                         M_DNEG(s1, d);
 960                         emit_store_dst(jd, iptr, d);
 961                         break;
 962
 963                 case ICMD_DADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 964
 965                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 966                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 967                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 968                         M_DADD(s1, s2, d);
 969                         emit_store_dst(jd, iptr, d);
 970                         break;
 971
 972                 case ICMD_DSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 973
 974                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 975                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 976                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 977                         M_DSUB(s1, s2, d);
 978                         emit_store_dst(jd, iptr, d);
 979                         break;
 980
 981                 case ICMD_DMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 982
 983                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 984                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 985                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 986                         M_DMUL(s1, s2, d);
 987                         emit_store_dst(jd, iptr, d);
 988                         break;
 989
 990                 case ICMD_DDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 991
 992                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 993                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 994                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 995                         M_DDIV(s1, s2, d);
 996                         emit_store_dst(jd, iptr, d);
 997                         break;
 998
 999                 /* ATTENTION: Jave does not want IEEE behaviour in DREM, do
1000                    not use this */
1001
1002 #if 0
1003                 case ICMD_DREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
1004
1005                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1006                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1007                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1008                         M_RMFD(d, s1, s2);
1009                         emit_store_dst(jd, iptr, d);
1010                         break;
1011 #endif
1012
1013                 case ICMD_I2F:       /* ..., value  ==> ..., (float) value            */
1014
1015                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1016                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1017                         M_CVTIF(s1, d);
1018                         emit_store_dst(jd, iptr, d);
1019                         break;
1020
1021                 case ICMD_I2D:       /* ..., value  ==> ..., (double) value           */
1022
1023                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1024                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1025                         M_CVTID(s1, d);
1026                         emit_store_dst(jd, iptr, d);
1027                         break;
1028
1029                 case ICMD_F2I:       /* ..., value  ==> ..., (int) value              */
1030
1031                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1032                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1033                         /* this uses round towards zero, as Java likes it */
1034                         M_CVTFI(s1, d);
1035 #if !defined(__VFP_FP__)
1036                         /* this checks for NaN; to return zero as Java likes it */
1037                         M_FCMP(s1, 0x8);
1038                         M_MOVVS_IMM(0, d);
1039 #endif
1040                         emit_store_dst(jd, iptr, d);
1041                         break;
1042
1043                 case ICMD_D2I:       /* ..., value  ==> ..., (int) value              */
1044
1045                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1046                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1047                         /* this uses round towards zero, as Java likes it */
1048                         M_CVTDI(s1, d);
1049 #if !defined(__VFP_FP__)
1050                         /* this checks for NaN; to return zero as Java likes it */
1051                         M_DCMP(s1, 0x8);
1052                         M_MOVVS_IMM(0, d);
1053 #endif
1054                         emit_store_dst(jd, iptr, d);
1055                         break;
1056
1057                 case ICMD_D2F:       /* ..., value  ==> ..., (float) value            */
1058
1059                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1060                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1061                         M_CVTDF(s1, d);
1062                         emit_store_dst(jd, iptr, d);
1063                         break;
1064
1065                 case ICMD_F2D:       /* ..., value  ==> ..., (double) value           */
1066
1067                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1068                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1069                         M_CVTFD(s1, d);
1070                         emit_store_dst(jd, iptr, d);
1071                         break;
1072
1073                 case ICMD_FCMPG:      /* ..., val1, val2  ==> ..., val1 fcmpg val2    */
1074
1075                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1076                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1077                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1078                         M_FCMP(s2, s1);
1079                         M_MOV_IMM(d, 0);
1080 #if defined(__VFP_FP__)
1081                         M_FMSTAT; /* on VFP we need to transfer the flags */
1082 #endif
1083                         M_SUBGT_IMM(d, d, 1);
1084                         M_ADDLT_IMM(d, d, 1);
1085                         emit_store_dst(jd, iptr, d);
1086                         break;
1087
1088                 case ICMD_DCMPG:      /* ..., val1, val2  ==> ..., val1 dcmpg val2    */
1089
1090                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1091                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1092                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1093                         M_DCMP(s2, s1);
1094                         M_MOV_IMM(d, 0);
1095 #if defined(__VFP_FP__)
1096                         M_FMSTAT; /* on VFP we need to transfer the flags */
1097 #endif
1098                         M_SUBGT_IMM(d, d, 1);
1099                         M_ADDLT_IMM(d, d, 1);
1100                         emit_store_dst(jd, iptr, d);
1101                         break;
1102
1103                 case ICMD_FCMPL:      /* ..., val1, val2  ==> ..., val1 fcmpl val2    */
1104
1105                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1106                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1107                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1108                         M_FCMP(s1, s2);
1109                         M_MOV_IMM(d, 0);
1110 #if defined(__VFP_FP__)
1111                         M_FMSTAT; /* on VFP we need to transfer the flags */
1112 #endif
1113                         M_SUBLT_IMM(d, d, 1);
1114                         M_ADDGT_IMM(d, d, 1);
1115                         emit_store_dst(jd, iptr, d);
1116                         break;
1117
1118                 case ICMD_DCMPL:      /* ..., val1, val2  ==> ..., val1 dcmpl val2    */
1119
1120                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1121                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1122                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1123                         M_DCMP(s1, s2);
1124                         M_MOV_IMM(d, 0);
1125 #if defined(__VFP_FP__)
1126                         M_FMSTAT; /* on VFP we need to transfer the flags */
1127 #endif
1128                         M_SUBLT_IMM(d, d, 1);
1129                         M_ADDGT_IMM(d, d, 1);
1130                         emit_store_dst(jd, iptr, d);
1131                         break;
1132
1133 #endif /* !defined(ENABLE_SOFTFLOAT) */
1134
1135
1136                 /* memory operations **************************************************/
1137
1138                 case ICMD_ARRAYLENGTH: /* ..., arrayref  ==> ..., length              */
1139
1140                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1141                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1142                         /* implicit null-pointer check */
1143                         M_ILD_INTERN(d, s1, OFFSET(java_array_t, size));
1144                         emit_store_dst(jd, iptr, d);
1145                         break;
1146
1147                 case ICMD_BALOAD:     /* ..., arrayref, index  ==> ..., value         */
1148
1149                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1150                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1151                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1152                         /* implicit null-pointer check */
1153                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1154                         M_ADD(REG_ITMP1, s1, s2); /* REG_ITMP1 = s1 + 1 * s2 */
1155                         M_LDRSB(d, REG_ITMP1, OFFSET(java_bytearray_t, data[0]));
1156                         emit_store_dst(jd, iptr, d);
1157                         break;
1158
1159                 case ICMD_CALOAD:     /* ..., arrayref, index  ==> ..., value         */
1160
1161                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1162                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1163                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1164                         /* implicit null-pointer check */
1165                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1166                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1167                         M_LDRH(d, REG_ITMP1, OFFSET(java_chararray_t, data[0]));
1168                         emit_store_dst(jd, iptr, d);
1169                         break;
1170
1171                 case ICMD_SALOAD:     /* ..., arrayref, index  ==> ..., value         */
1172
1173                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1174                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1175                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1176                         /* implicit null-pointer check */
1177                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1178                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1179                         M_LDRSH(d, REG_ITMP1, OFFSET(java_shortarray_t, data[0]));
1180                         emit_store_dst(jd, iptr, d);
1181                         break;
1182
1183                 case ICMD_IALOAD:     /* ..., arrayref, index  ==> ..., value         */
1184
1185                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1186                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1187                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1188                         /* implicit null-pointer check */
1189                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1190                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1191                         M_ILD_INTERN(d, REG_ITMP1, OFFSET(java_intarray_t, data[0]));
1192                         emit_store_dst(jd, iptr, d);
1193                         break;
1194
1195                 case ICMD_LALOAD:     /* ..., arrayref, index  ==> ..., value         */
1196
1197                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1198                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1199                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1200                         /* implicit null-pointer check */
1201                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1202                         M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1203                         M_LLD_INTERN(d, REG_ITMP3, OFFSET(java_longarray_t, data[0]));
1204                         emit_store_dst(jd, iptr, d);
1205                         break;
1206
1207                 case ICMD_FALOAD:     /* ..., arrayref, index  ==> ..., value         */
1208
1209                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1210                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1211                         /* implicit null-pointer check */
1212                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1213                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1214 #if !defined(ENABLE_SOFTFLOAT)
1215                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1216                         M_FLD_INTERN(d, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1217 #else
1218                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1219                         M_ILD_INTERN(d, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1220 #endif
1221                         emit_store_dst(jd, iptr, d);
1222                         break;
1223
1224                 case ICMD_DALOAD:     /* ..., arrayref, index  ==> ..., value         */
1225
1226                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1227                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1228                         /* implicit null-pointer check */
1229                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1230                         M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1231 #if !defined(ENABLE_SOFTFLOAT)
1232                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1233                         M_DLD_INTERN(d, REG_ITMP3, OFFSET(java_doublearray_t, data[0]));
1234 #else
1235                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1236                         M_LLD_INTERN(d, REG_ITMP3, OFFSET(java_doublearray_t, data[0]));
1237 #endif
1238                         emit_store_dst(jd, iptr, d);
1239                         break;
1240
1241                 case ICMD_AALOAD:     /* ..., arrayref, index  ==> ..., value         */
1242
1243                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1244                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1245                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1246                         /* implicit null-pointer check */
1247                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1248                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1249                         M_LDR_INTERN(d, REG_ITMP1, OFFSET(java_objectarray_t, data[0]));
1250                         emit_store_dst(jd, iptr, d);
1251                         break;
1252
1253                 case ICMD_BASTORE:    /* ..., arrayref, index, value  ==> ...         */
1254
1255                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1256                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1257                         /* implicit null-pointer check */
1258                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1259                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1260                         M_ADD(REG_ITMP1, s1, s2); /* REG_ITMP1 = s1 + 1 * s2 */
1261                         M_STRB(s3, REG_ITMP1, OFFSET(java_bytearray_t, data[0]));
1262                         break;
1263
1264                 case ICMD_CASTORE:    /* ..., arrayref, index, value  ==> ...         */
1265
1266                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1267                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1268                         /* implicit null-pointer check */
1269                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1270                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1271                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1272                         M_STRH(s3, REG_ITMP1, OFFSET(java_chararray_t, data[0]));
1273                         break;
1274
1275                 case ICMD_SASTORE:    /* ..., arrayref, index, value  ==> ...         */
1276
1277                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1278                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1279                         /* implicit null-pointer check */
1280                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1281                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1282                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1283                         M_STRH(s3, REG_ITMP1, OFFSET(java_shortarray_t, data[0]));
1284                         break;
1285
1286                 case ICMD_IASTORE:    /* ..., arrayref, index, value  ==> ...         */
1287
1288                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1289                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1290                         /* implicit null-pointer check */
1291                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1292                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1293                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1294                         M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_intarray_t, data[0]));
1295                         break;
1296
1297                 case ICMD_LASTORE:    /* ..., arrayref, index, value  ==> ...         */
1298
1299                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1300                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1301                         /* implicit null-pointer check */
1302                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1303                         M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1304                         s3 = emit_load_s3(jd, iptr, REG_ITMP12_PACKED);
1305                         M_LST_INTERN(s3, REG_ITMP3, OFFSET(java_longarray_t, data[0]));
1306                         break;
1307
1308                 case ICMD_FASTORE:    /* ..., arrayref, index, value  ==> ...         */
1309
1310                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1311                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1312                         /* implicit null-pointer check */
1313                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1314                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1315 #if !defined(ENABLE_SOFTFLOAT)
1316                         s3 = emit_load_s3(jd, iptr, REG_FTMP1);
1317                         M_FST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1318 #else
1319                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1320                         M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1321 #endif
1322                         break;
1323
1324                 case ICMD_DASTORE:    /* ..., arrayref, index, value  ==> ...         */
1325
1326                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1327                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1328                         /* implicit null-pointer check */
1329                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1330                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 3)); /* REG_ITMP1 = s1 + 8 * s2 */
1331 #if !defined(ENABLE_SOFTFLOAT)
1332                         s3 = emit_load_s3(jd, iptr, REG_FTMP1);
1333                         M_DST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray_t, data[0]));
1334 #else
1335                         s3 = emit_load_s3(jd, iptr, REG_ITMP23_PACKED);
1336                         M_LST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray_t, data[0]));
1337 #endif
1338                         break;
1339
1340                 case ICMD_AASTORE:    /* ..., arrayref, index, value  ==> ...         */
1341
1342                         s1 = emit_load_s1(jd, iptr, REG_A0);
1343                         s2 = emit_load_s2(jd, iptr, REG_ITMP1);
1344                         s3 = emit_load_s3(jd, iptr, REG_A1);
1345
1346                         /* implicit null-pointer check */
1347                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1348
1349                         /* move arguments to argument registers */
1350                         M_INTMOVE(s1, REG_A0);
1351                         M_INTMOVE(s3, REG_A1);
1352
1353                         /* call builtin function */
1354                         disp = dseg_add_functionptr(cd, BUILTIN_FAST_canstore);
1355                         M_DSEG_BRANCH(disp);
1356
1357                         /* recompute pv */
1358                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
1359                         M_RECOMPUTE_PV(s1);
1360
1361                         /* check resturn value of builtin */
1362                         emit_arraystore_check(cd, iptr);
1363
1364                         /* finally store address into array */
1365                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1366                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1367                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1368                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1369                         M_STR_INTERN(s3, REG_ITMP1, OFFSET(java_objectarray_t, data[0]));
1370                         break;
1371
1372                 case ICMD_GETSTATIC:  /* ...  ==> ..., value                          */
1373
1374                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1375                                 uf        = iptr->sx.s23.s3.uf;
1376                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1377                                 disp      = dseg_add_unique_address(cd, NULL);
1378
1379                                 patcher_add_patch_ref(jd, PATCHER_get_putstatic, uf, disp);
1380                         }
1381                         else {
1382                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1383                                 fieldtype = fi->type;
1384                                 disp      = dseg_add_address(cd, fi->value);
1385
1386                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->clazz)) {
1387                                         patcher_add_patch_ref(jd, PATCHER_initialize_class,
1388                                                             fi->clazz, 0);
1389                                 }
1390                         }
1391
1392                         M_DSEG_LOAD(REG_ITMP3, disp);
1393                         switch (fieldtype) {
1394                         case TYPE_INT:
1395 #if defined(ENABLE_SOFTFLOAT)
1396                         case TYPE_FLT:
1397 #endif
1398                         case TYPE_ADR:
1399                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1400                                 M_ILD_INTERN(d, REG_ITMP3, 0);
1401                                 break;
1402                         case TYPE_LNG:
1403 #if defined(ENABLE_SOFTFLOAT)
1404                         case TYPE_DBL:
1405 #endif
1406                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1407                                 M_LLD_INTERN(d, REG_ITMP3, 0);
1408                                 break;
1409 #if !defined(ENABLE_SOFTFLOAT)
1410                         case TYPE_FLT:
1411                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1412                                 M_FLD_INTERN(d, REG_ITMP3, 0);
1413                                 break;
1414                         case TYPE_DBL:
1415                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1416                                 M_DLD_INTERN(d, REG_ITMP3, 0);
1417                                 break;
1418 #endif
1419                         default:
1420                                 assert(0);
1421                         }
1422                         emit_store_dst(jd, iptr, d);
1423                         break;
1424
1425                 case ICMD_PUTSTATIC:  /* ..., value  ==> ...                          */
1426
1427                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1428                                 uf        = iptr->sx.s23.s3.uf;
1429                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1430                                 disp      = dseg_add_unique_address(cd, NULL);
1431
1432                                 patcher_add_patch_ref(jd, PATCHER_get_putstatic, uf, disp);
1433                         }
1434                         else {
1435                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1436                                 fieldtype = fi->type;
1437                                 disp      = dseg_add_address(cd, fi->value);
1438
1439                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->clazz)) {
1440                                         patcher_add_patch_ref(jd, PATCHER_initialize_class,
1441                                                             fi->clazz, 0);
1442                                 }
1443                         }
1444
1445                         M_DSEG_LOAD(REG_ITMP3, disp);
1446                         switch (fieldtype) {
1447                         case TYPE_INT:
1448 #if defined(ENABLE_SOFTFLOAT)
1449                         case TYPE_FLT:
1450 #endif
1451                         case TYPE_ADR:
1452                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1453                                 M_IST_INTERN(s1, REG_ITMP3, 0);
1454                                 break;
1455                         case TYPE_LNG:
1456 #if defined(ENABLE_SOFTFLOAT)
1457                         case TYPE_DBL:
1458 #endif
1459                                 s1 = emit_load_s1(jd, iptr, REG_ITMP12_PACKED);
1460                                 M_LST_INTERN(s1, REG_ITMP3, 0);
1461                                 break;
1462 #if !defined(ENABLE_SOFTFLOAT)
1463                         case TYPE_FLT:
1464                                 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1465                                 M_FST_INTERN(s1, REG_ITMP3, 0);
1466                                 break;
1467                         case TYPE_DBL:
1468                                 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1469                                 M_DST_INTERN(s1, REG_ITMP3, 0);
1470                                 break;
1471 #endif
1472                         default:
1473                                 assert(0);
1474                         }
1475                         break;
1476
1477                 case ICMD_GETFIELD:   /* ..., objectref, value  ==> ...               */
1478
1479                         s1 = emit_load_s1(jd, iptr, REG_ITMP3);
1480                         emit_nullpointer_check(cd, iptr, s1);
1481
1482
1483                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1484                                 uf        = iptr->sx.s23.s3.uf;
1485                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1486                                 disp      = 0;
1487                         }
1488                         else {
1489                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1490                                 fieldtype = fi->type;
1491                                 disp      = fi->offset;
1492                         }
1493
1494 #if !defined(ENABLE_SOFTFLOAT)
1495                         /* HACK: softnull checks on floats */
1496                         if (!INSTRUCTION_MUST_CHECK(iptr) && IS_FLT_DBL_TYPE(fieldtype))
1497                                 emit_nullpointer_check_force(cd, iptr, s1);
1498 #endif
1499
1500                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1501                                 /* XXX REMOVE ME */
1502                                 uf = iptr->sx.s23.s3.uf;
1503
1504                                 patcher_add_patch_ref(jd, PATCHER_get_putfield, uf, 0);
1505                         }
1506
1507                         switch (fieldtype) {
1508                         case TYPE_INT:
1509 #if defined(ENABLE_SOFTFLOAT)
1510                         case TYPE_FLT:
1511 #endif
1512                         case TYPE_ADR:
1513                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1514                                 M_ILD(d, s1, disp);
1515                                 break;
1516                         case TYPE_LNG:
1517 #if defined(ENABLE_SOFTFLOAT)
1518                         case TYPE_DBL:
1519 #endif
1520                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1521                                 M_LLD(d, s1, disp);
1522                                 break;
1523 #if !defined(ENABLE_SOFTFLOAT)
1524                         case TYPE_FLT:
1525                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1526                                 M_FLD(d, s1, disp);
1527                                 break;
1528                         case TYPE_DBL:
1529                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1530                                 M_DLD(d, s1, disp);
1531                                 break;
1532 #endif
1533                         default:
1534                                 assert(0);
1535                         }
1536                         emit_store_dst(jd, iptr, d);
1537                         break;
1538
1539                 case ICMD_PUTFIELD:   /* ..., objectref, value  ==> ...               */
1540
1541                         s1 = emit_load_s1(jd, iptr, REG_ITMP3);
1542                         emit_nullpointer_check(cd, iptr, s1);
1543
1544                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1545                                 uf        = iptr->sx.s23.s3.uf;
1546                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1547                                 disp      = 0;
1548                         }
1549                         else {
1550                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1551                                 fieldtype = fi->type;
1552                                 disp      = fi->offset;
1553                         }
1554
1555 #if !defined(ENABLE_SOFTFLOAT)
1556                         /* HACK: softnull checks on floats */
1557                         if (!INSTRUCTION_MUST_CHECK(iptr) && IS_FLT_DBL_TYPE(fieldtype))
1558                                 emit_nullpointer_check_force(cd, iptr, s1);
1559 #endif
1560
1561                         switch (fieldtype) {
1562                         case TYPE_INT:
1563 #if defined(ENABLE_SOFTFLOAT)
1564                         case TYPE_FLT:
1565 #endif
1566                         case TYPE_ADR:
1567                                 s2 = emit_load_s2(jd, iptr, REG_ITMP1);
1568                                 break;
1569 #if defined(ENABLE_SOFTFLOAT)
1570                         case TYPE_DBL: /* fall through */
1571 #endif
1572                         case TYPE_LNG:
1573                                 s2 = emit_load_s2(jd, iptr, REG_ITMP12_PACKED);
1574                                 break;
1575 #if !defined(ENABLE_SOFTFLOAT)
1576                         case TYPE_FLT:
1577                         case TYPE_DBL:
1578                                 s2 = emit_load_s2(jd, iptr, REG_FTMP1);
1579                                 break;
1580 #endif
1581                         default:
1582                                 assert(0);
1583                         }
1584
1585                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1586                                 /* XXX REMOVE ME */
1587                                 uf = iptr->sx.s23.s3.uf;
1588
1589                                 patcher_add_patch_ref(jd, PATCHER_get_putfield, uf, 0);
1590                         }
1591
1592                         switch (fieldtype) {
1593                         case TYPE_INT:
1594 #if defined(ENABLE_SOFTFLOAT)
1595                         case TYPE_FLT:
1596 #endif
1597                         case TYPE_ADR:
1598                                 M_IST(s2, s1, disp);
1599                                 break;
1600                         case TYPE_LNG:
1601 #if defined(ENABLE_SOFTFLOAT)
1602                         case TYPE_DBL:
1603 #endif
1604                                 M_LST(s2, s1, disp);
1605                                 break;
1606 #if !defined(ENABLE_SOFTFLOAT)
1607                         case TYPE_FLT:
1608                                 M_FST(s2, s1, disp);
1609                                 break;
1610                         case TYPE_DBL:
1611                                 M_DST(s2, s1, disp);
1612                                 break;
1613 #endif
1614                         default:
1615                                 assert(0);
1616                         }
1617                         break;
1618
1619
1620                 /* branch operations **************************************************/
1621
1622                 case ICMD_ATHROW:       /* ..., objectref ==> ... (, objectref)       */
1623
1624                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1625                         M_INTMOVE(s1, REG_ITMP1_XPTR);
1626                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1627                                 patcher_add_patch_ref(jd, PATCHER_resolve_class,
1628                                                                         iptr->sx.s23.s2.uc, 0);
1629                         }
1630                         disp = dseg_add_functionptr(cd, asm_handle_exception);
1631                         M_DSEG_LOAD(REG_ITMP3, disp);
1632                         M_MOV(REG_ITMP2_XPC, REG_PC);
1633                         M_MOV(REG_PC, REG_ITMP3);
1634                         M_NOP;              /* nop ensures that XPC is less than the end  */
1635                                             /* of basic block                             */
1636                         break;
1637
1638                 case ICMD_GOTO:         /* ... ==> ...                                */
1639                 case ICMD_RET:
1640
1641                         emit_br(cd, iptr->dst.block);
1642                         break;
1643
1644                 case ICMD_JSR:          /* ... ==> ...                                */
1645
1646                         emit_br(cd, iptr->sx.s23.s3.jsrtarget.block);
1647                         break;
1648
1649                 case ICMD_IFNULL:       /* ..., value ==> ...                         */
1650                 case ICMD_IFNONNULL:
1651
1652                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1653                         M_TEQ_IMM(s1, 0);
1654                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFNULL, BRANCH_OPT_NONE);
1655                         break;
1656
1657                 case ICMD_IFLT:         /* ..., value ==> ...                         */
1658                 case ICMD_IFLE:         /* op1 = target JavaVM pc, val.i = constant   */
1659                 case ICMD_IFGT:
1660                 case ICMD_IFGE:
1661                 case ICMD_IFEQ:
1662                 case ICMD_IFNE:
1663
1664                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1665                         M_COMPARE(s1, iptr->sx.val.i);
1666                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFEQ, BRANCH_OPT_NONE);
1667                         break;
1668
1669                 case ICMD_IF_LEQ:       /* ..., value ==> ...                         */
1670
1671                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1672                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1673                         if (iptr->sx.val.l == 0) {
1674                                 M_ORR_S(s1, s2, REG_ITMP3);
1675                         }
1676                         else {
1677                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1678                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1679                                 M_CMP(s1, REG_ITMP3);*/
1680                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1681                                 M_CMPEQ(s2, REG_ITMP3);
1682                         }
1683                         emit_beq(cd, iptr->dst.block);
1684                         break;
1685
1686                 case ICMD_IF_LLT:       /* ..., value ==> ...                         */
1687
1688                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1689                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1690                         if (iptr->sx.val.l == 0) {
1691                                 /* if high word is less than zero, the whole long is too */
1692                                 M_CMP_IMM(s1, 0);
1693                                 emit_blt(cd, iptr->dst.block);
1694                         }
1695                         else {
1696                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1697                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1698                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1699                                 M_CMP(s1, REG_ITMP3);*/
1700                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1701                                 M_MOVGT_IMM(2, REG_ITMP1);
1702                                 M_MOVEQ_IMM(1, REG_ITMP1);
1703
1704                                 /* low compare: x=x-1(ifLO) */
1705                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1706                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1707                                 M_CMP(s2, REG_ITMP3);*/
1708                                 M_SUBLO_IMM(REG_ITMP1, REG_ITMP1, 1);
1709
1710                                 /* branch if (x LT 1) */
1711                                 M_CMP_IMM(REG_ITMP1, 1);
1712                                 emit_blt(cd, iptr->dst.block);
1713                         }
1714                         break;
1715
1716                 case ICMD_IF_LLE:       /* ..., value ==> ...                         */
1717
1718                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1719                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1720                         if (iptr->sx.val.l == 0) {
1721                                 /* if high word is less than zero, the whole long is too  */
1722                                 M_CMP_IMM(s1, 0);
1723                                 emit_blt(cd, iptr->dst.block);
1724
1725                                 /* ... otherwise the low word has to be zero (tricky!) */
1726                                 M_CMPEQ_IMM(s2, 0);
1727                                 emit_beq(cd, iptr->dst.block);
1728                         }
1729                         else {
1730                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1731                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1732                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1733                                 M_CMP(s1, REG_ITMP3);*/
1734                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1735                                 M_MOVGT_IMM(2, REG_ITMP1);
1736                                 M_MOVEQ_IMM(1, REG_ITMP1);
1737
1738                                 /* low compare: x=x+1(ifHI) */
1739                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1740                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1741                                 M_CMP(s2, REG_ITMP3);*/
1742                                 M_ADDHI_IMM(REG_ITMP1, REG_ITMP1, 1);
1743
1744                                 /* branch if (x LE 1) */
1745                                 M_CMP_IMM(REG_ITMP1, 1);
1746                                 emit_ble(cd, iptr->dst.block);
1747                         }
1748                         break;
1749
1750                 case ICMD_IF_LGE:       /* ..., value ==> ...                         */
1751
1752                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1753                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1754                         if (iptr->sx.val.l == 0) {
1755                                 /* if high word is greater or equal zero, the whole long is too */
1756                                 M_CMP_IMM(s1, 0);
1757                                 emit_bge(cd, iptr->dst.block);
1758                         }
1759                         else {
1760                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1761                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1762                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1763                                 M_CMP(s1, REG_ITMP3);*/
1764                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1765                                 M_MOVGT_IMM(2, REG_ITMP1);
1766                                 M_MOVEQ_IMM(1, REG_ITMP1);
1767
1768                                 /* low compare: x=x-1(ifLO) */
1769                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1770                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1771                                 M_CMP(s2, REG_ITMP3);*/
1772                                 M_SUBLO_IMM(REG_ITMP1, REG_ITMP1, 1);
1773
1774                                 /* branch if (x GE 1) */
1775                                 M_CMP_IMM(REG_ITMP1, 1);
1776                                 emit_bge(cd, iptr->dst.block);
1777                         }
1778                         break;
1779
1780                 case ICMD_IF_LGT:       /* ..., value ==> ...                         */
1781
1782                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1783                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1784 #if 0
1785                         if (iptr->sx.val.l == 0) {
1786                                 /* if high word is greater than zero, the whole long is too */
1787                                 M_CMP_IMM(s1, 0);
1788                                 M_BGT(0);
1789                                 codegen_add_branch_ref(cd, iptr->dst.block);
1790
1791                                 /* ... or high was zero and low is non zero (tricky!) */
1792                                 M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1793                                 M_MOVLT_IMM(1, REG_ITMP3);
1794                                 M_ORR_S(REG_ITMP3, s2, REG_ITMP3);
1795                                 M_BNE(0);
1796                                 codegen_add_branch_ref(cd, iptr->dst.block);
1797                         }
1798                         else {
1799 #endif
1800                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1801                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1802                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1803                                 M_CMP(s1, REG_ITMP3);*/
1804                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1805                                 M_MOVGT_IMM(2, REG_ITMP1);
1806                                 M_MOVEQ_IMM(1, REG_ITMP1);
1807
1808                                 /* low compare: x=x+1(ifHI) */
1809                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1810                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1811                                 M_CMP(s2, REG_ITMP3);*/
1812                                 M_ADDHI_IMM(REG_ITMP1, REG_ITMP1, 1);
1813
1814                                 /* branch if (x GT 1) */
1815                                 M_CMP_IMM(REG_ITMP1, 1);
1816                                 emit_bgt(cd, iptr->dst.block);
1817 #if 0
1818                         }
1819 #endif
1820                         break;
1821
1822                 case ICMD_IF_LNE:       /* ..., value ==> ...                         */
1823
1824                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1825                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1826                         if (iptr->sx.val.l == 0) {
1827                                 M_ORR_S(s1, s2, REG_ITMP3);
1828                         }
1829                         else {
1830                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1831                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1832                                 M_CMP(s1, REG_ITMP3);*/
1833                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1834                                 M_CMPEQ(s2, REG_ITMP3);
1835                         }
1836                         emit_bne(cd, iptr->dst.block);
1837                         break;
1838
1839                 case ICMD_IF_ICMPEQ:    /* ..., value, value ==> ...                  */
1840                 case ICMD_IF_ICMPNE:
1841                 case ICMD_IF_ICMPLT:
1842                 case ICMD_IF_ICMPLE:
1843                 case ICMD_IF_ICMPGT:
1844                 case ICMD_IF_ICMPGE:
1845
1846                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1847                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1848                         M_CMP(s1, s2);
1849                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IF_ICMPEQ, BRANCH_OPT_NONE);
1850                         break;
1851
1852                 case ICMD_IF_ACMPEQ:    /* ..., value, value ==> ...                  */
1853                 case ICMD_IF_ACMPNE:
1854
1855                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1856                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1857                         M_CMP(s1, s2);
1858                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IF_ACMPEQ, BRANCH_OPT_NONE);
1859                         break;
1860
1861                 case ICMD_IF_LCMPEQ:    /* ..., value, value ==> ...                  */
1862                                         /* op1 = target JavaVM pc                     */
1863
1864                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1865                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1866                         M_CMP(s1, s2);
1867
1868                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1869                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1870                         M_CMPEQ(s1, s2);
1871
1872                         emit_beq(cd, iptr->dst.block);
1873                         break;
1874
1875                 case ICMD_IF_LCMPNE:    /* ..., value, value ==> ...                  */
1876                                         /* op1 = target JavaVM pc                     */
1877
1878                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1879                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1880                         M_CMP(s1, s2);
1881
1882                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1883                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1884                         M_CMPEQ(s1, s2);
1885
1886                         emit_bne(cd, iptr->dst.block);
1887                         break;
1888
1889                 case ICMD_IF_LCMPLT:    /* ..., value, value ==> ...                  */
1890                                         /* op1 = target JavaVM pc                     */
1891
1892                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1893                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1894                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1895                         M_CMP(s1, s2);
1896                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1897                         M_MOVGT_IMM(2, REG_ITMP3);
1898                         M_MOVEQ_IMM(1, REG_ITMP3);
1899
1900                         /* low compare: x=x-1(ifLO) */
1901                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1902                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1903                         M_CMP(s1, s2);
1904                         M_SUBLO_IMM(REG_ITMP3, REG_ITMP3, 1);
1905
1906                         /* branch if (x LT 1) */
1907                         M_CMP_IMM(REG_ITMP3, 1);
1908                         emit_blt(cd, iptr->dst.block);
1909                         break;
1910
1911                 case ICMD_IF_LCMPLE:    /* ..., value, value ==> ...                  */
1912                                         /* op1 = target JavaVM pc                     */
1913
1914                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1915                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1916                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1917                         M_CMP(s1, s2);
1918                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1919                         M_MOVGT_IMM(2, REG_ITMP3);
1920                         M_MOVEQ_IMM(1, REG_ITMP3);
1921
1922                         /* low compare: x=x-1(ifLO) */
1923                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1924                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1925                         M_CMP(s1, s2);
1926                         M_ADDHI_IMM(REG_ITMP3, REG_ITMP3, 1);
1927
1928                         /* branch if (x LE 1) */
1929                         M_CMP_IMM(REG_ITMP3, 1);
1930                         emit_ble(cd, iptr->dst.block);
1931                         break;
1932
1933                 case ICMD_IF_LCMPGT:    /* ..., value, value ==> ...                  */
1934                                         /* op1 = target JavaVM pc                     */
1935
1936                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1937                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1938                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1939                         M_CMP(s1, s2);
1940                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1941                         M_MOVGT_IMM(2, REG_ITMP3);
1942                         M_MOVEQ_IMM(1, REG_ITMP3);
1943
1944                         /* low compare: x=x-1(ifLO) */
1945                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1946                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1947                         M_CMP(s1, s2);
1948                         M_ADDHI_IMM(REG_ITMP3, REG_ITMP3, 1);
1949
1950                         /* branch if (x GT 1) */
1951                         M_CMP_IMM(REG_ITMP3, 1);
1952                         emit_bgt(cd, iptr->dst.block);
1953                         break;
1954
1955                 case ICMD_IF_LCMPGE:    /* ..., value, value ==> ...                  */
1956                                         /* op1 = target JavaVM pc                     */
1957
1958                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1959                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1960                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1961                         M_CMP(s1, s2);
1962                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1963                         M_MOVGT_IMM(2, REG_ITMP3);
1964                         M_MOVEQ_IMM(1, REG_ITMP3);
1965
1966                         /* low compare: x=x-1(ifLO) */
1967                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1968                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1969                         M_CMP(s1, s2);
1970                         M_SUBLO_IMM(REG_ITMP3, REG_ITMP3, 1);
1971
1972                         /* branch if (x GE 1) */
1973                         M_CMP_IMM(REG_ITMP3, 1);
1974                         emit_bge(cd, iptr->dst.block);
1975                         break;
1976
1977                 case ICMD_TABLESWITCH:  /* ..., index ==> ...                         */
1978                         {
1979                         s4 i, l;
1980                         branch_target_t *table;
1981
1982                         table = iptr->dst.table;
1983
1984                         l = iptr->sx.s23.s2.tablelow;
1985                         i = iptr->sx.s23.s3.tablehigh;
1986
1987                         /* calculate new index (index - low) */
1988                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1989                         if (l  == 0) {
1990                                 M_INTMOVE(s1, REG_ITMP1);
1991                         } else if (IS_IMM(l)) {
1992                                 M_SUB_IMM(REG_ITMP1, s1, l);
1993                         } else {
1994                                 ICONST(REG_ITMP2, l);
1995                                 M_SUB(REG_ITMP1, s1, REG_ITMP2);
1996                         }
1997
1998                         /* range check (index <= high-low) */
1999                         i = i - l + 1;
2000                         M_COMPARE(REG_ITMP1, i-1);
2001                         emit_bugt(cd, table[0].block);
2002
2003                         /* build jump table top down and use address of lowest entry */
2004
2005                         table += i;
2006
2007                         while (--i >= 0) {
2008                                 dseg_add_target(cd, table->block);
2009                                 --table;
2010                         }
2011                         }
2012
2013                         /* length of dataseg after last dseg_add_target is used by load */
2014                         /* TODO: this loads from data-segment */
2015                         M_ADD(REG_ITMP2, REG_PV, REG_LSL(REG_ITMP1, 2));
2016                         M_LDR(REG_PC, REG_ITMP2, -(cd->dseglen));
2017                         break;
2018
2019                 case ICMD_LOOKUPSWITCH: /* ..., key ==> ...                           */
2020                         {
2021                         s4 i;
2022                         lookup_target_t *lookup;
2023
2024                         lookup = iptr->dst.lookup;
2025
2026                         i = iptr->sx.s23.s2.lookupcount;
2027
2028                         /* compare keys */
2029                         MCODECHECK((i<<2)+8);
2030                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2031
2032                         while (--i >= 0) {
2033                                 M_COMPARE(s1, lookup->value);
2034                                 emit_beq(cd, lookup->target.block);
2035                                 lookup++;
2036                         }
2037
2038                         /* default branch */
2039                         emit_br(cd, iptr->sx.s23.s3.lookupdefault.block);
2040                         }
2041                         break;
2042
2043                 case ICMD_FRETURN:      /* ..., retvalue ==> ...                      */
2044
2045 #if !defined(ENABLE_SOFTFLOAT)
2046                         REPLACEMENT_POINT_RETURN(cd, iptr);
2047                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
2048                         M_CAST_F2I(s1, REG_RESULT);
2049                         goto ICMD_RETURN_do;
2050 #endif
2051
2052                 case ICMD_IRETURN:      /* ..., retvalue ==> ...                      */
2053
2054                         REPLACEMENT_POINT_RETURN(cd, iptr);
2055                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2056                         M_INTMOVE(s1, REG_RESULT);
2057                         goto ICMD_RETURN_do;
2058
2059                 case ICMD_DRETURN:      /* ..., retvalue ==> ...                      */
2060
2061 #if !defined(ENABLE_SOFTFLOAT)
2062                         REPLACEMENT_POINT_RETURN(cd, iptr);
2063                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
2064                         M_CAST_D2L(s1, REG_RESULT_PACKED);
2065                         goto ICMD_RETURN_do;
2066 #endif
2067
2068                 case ICMD_LRETURN:      /* ..., retvalue ==> ...                      */
2069
2070                         REPLACEMENT_POINT_RETURN(cd, iptr);
2071                         s1 = emit_load_s1(jd, iptr, REG_RESULT_PACKED);
2072                         M_LNGMOVE(s1, REG_RESULT_PACKED);
2073                         goto ICMD_RETURN_do;
2074
2075                 case ICMD_ARETURN:      /* ..., retvalue ==> ...                      */
2076
2077                         REPLACEMENT_POINT_RETURN(cd, iptr);
2078                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2079                         M_INTMOVE(s1, REG_RESULT);
2080                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2081                                 patcher_add_patch_ref(jd, PATCHER_resolve_class,
2082                                                                         iptr->sx.s23.s2.uc, 0);
2083                         }
2084                         goto ICMD_RETURN_do;
2085
2086                 case ICMD_RETURN:       /* ...  ==> ...                               */
2087
2088                         REPLACEMENT_POINT_RETURN(cd, iptr);
2089                         ICMD_RETURN_do:
2090
2091 #if !defined(NDEBUG)
2092                         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
2093                                 emit_verbosecall_exit(jd);
2094 #endif
2095
2096 #if defined(ENABLE_THREADS)
2097                         /* call monitorexit function */
2098
2099                         if (checksync && code_is_synchronized(code)) {
2100                                 /* stack offset for monitor argument */
2101
2102                                 s1 = rd->memuse * 8;
2103
2104                                 /* we need to save the proper return value */
2105
2106                                 switch (iptr->opc) {
2107                                 case ICMD_IRETURN:
2108                                 case ICMD_ARETURN:
2109                                 case ICMD_LRETURN:
2110                                 case ICMD_FRETURN: /* XXX TWISTI: is that correct? */
2111                                 case ICMD_DRETURN:
2112                                         M_STMFD(BITMASK_RESULT, REG_SP);
2113                                         s1 += 2 * 4;
2114                                         break;
2115                                 }
2116
2117                                 M_LDR(REG_A0, REG_SP, s1);
2118                                 disp = dseg_add_functionptr(cd, LOCK_monitor_exit);
2119                                 M_DSEG_BRANCH(disp);
2120
2121                                 /* we no longer need PV here, no more loading */
2122                                 /*s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2123                                 M_RECOMPUTE_PV(s1);*/
2124
2125                                 switch (iptr->opc) {
2126                                 case ICMD_IRETURN:
2127                                 case ICMD_ARETURN:
2128                                 case ICMD_LRETURN:
2129                                 case ICMD_FRETURN: /* XXX TWISTI: is that correct? */
2130                                 case ICMD_DRETURN:
2131                                         M_LDMFD(BITMASK_RESULT, REG_SP);
2132                                         break;
2133                                 }
2134                         }
2135 #endif
2136
2137                         /* deallocate stackframe for spilled variables */
2138
2139                         if ((cd->stackframesize / 4 - savedregs_num) > 0)
2140                                 M_ADD_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - savedregs_num);
2141
2142                         /* restore callee saved registers + do return */
2143
2144                         if (savedregs_bitmask) {
2145                                 if (!code_is_leafmethod(code)) {
2146                                         savedregs_bitmask &= ~(1<<REG_LR);
2147                                         savedregs_bitmask |= (1<<REG_PC);
2148                                 }
2149                                 M_LDMFD(savedregs_bitmask, REG_SP);
2150                         }
2151
2152                         /* if LR was not on stack, we need to return manually */
2153
2154                         if (code_is_leafmethod(code))
2155                                 M_MOV(REG_PC, REG_LR);
2156                         break;
2157
2158                 case ICMD_BUILTIN:      /* ..., arg1, arg2, arg3 ==> ...              */
2159
2160                         bte = iptr->sx.s23.s3.bte;
2161                         md  = bte->md;
2162                         goto ICMD_INVOKE_do;
2163
2164                 case ICMD_INVOKESTATIC: /* ..., [arg1, [arg2 ...]] ==> ...            */
2165                 case ICMD_INVOKESPECIAL:/* ..., objectref, [arg1, [arg2 ...]] ==> ... */
2166                 case ICMD_INVOKEVIRTUAL:/* op1 = arg count, val.a = method pointer    */
2167                 case ICMD_INVOKEINTERFACE:
2168
2169                         REPLACEMENT_POINT_INVOKE(cd, iptr);
2170
2171                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2172                                 lm = NULL;
2173                                 um = iptr->sx.s23.s3.um;
2174                                 md = um->methodref->parseddesc.md;
2175                         }
2176                         else {
2177                                 lm = iptr->sx.s23.s3.fmiref->p.method;
2178                                 um = NULL;
2179                                 md = lm->parseddesc;
2180                         }
2181
2182                 ICMD_INVOKE_do:
2183                         /* copy arguments to registers or stack location */
2184
2185                         s3 = md->paramcount;
2186
2187                         MCODECHECK((s3 << 1) + 64);
2188
2189                         for (s3 = s3 - 1; s3 >= 0; s3--) {
2190                                 var = VAR(iptr->sx.s23.s2.args[s3]);
2191                                 d   = md->params[s3].regoff;
2192
2193                                 if (var->flags & PREALLOC) /* argument was precolored? */
2194                                         continue;
2195
2196                                 /* TODO: document me */
2197 #if !defined(ENABLE_SOFTFLOAT)
2198                                 if (IS_INT_LNG_TYPE(var->type)) {
2199 #endif /* !defined(ENABLE_SOFTFLOAT) */
2200                                         if (!md->params[s3].inmemory) {
2201                                                 s1 = emit_load(jd, iptr, var, d);
2202
2203                                                 if (IS_2_WORD_TYPE(var->type))
2204                                                         M_LNGMOVE(s1, d);
2205                                                 else
2206                                                         M_INTMOVE(s1, d);
2207                                         }
2208                                         else {
2209                                                 if (IS_2_WORD_TYPE(var->type)) {
2210                                                         s1 = emit_load(jd, iptr, var, REG_ITMP12_PACKED);
2211                                                         M_LST(s1, REG_SP, d);
2212                                                 }
2213                                                 else {
2214                                                         s1 = emit_load(jd, iptr, var, REG_ITMP1);
2215                                                         M_IST(s1, REG_SP, d);
2216                                                 }
2217                                         }
2218 #if !defined(ENABLE_SOFTFLOAT)
2219                                 }
2220                                 else {
2221                                         if (!md->params[s3].inmemory) {
2222                                                 s1 = emit_load(jd, iptr, var, REG_FTMP1);
2223                                                 if (IS_2_WORD_TYPE(var->type))
2224                                                         M_CAST_D2L(s1, d);
2225                                                 else
2226                                                         M_CAST_F2I(s1, d);
2227                                         }
2228                                         else {
2229                                                 s1 = emit_load(jd, iptr, var, REG_FTMP1);
2230                                                 if (IS_2_WORD_TYPE(var->type))
2231                                                         M_DST(s1, REG_SP, d);
2232                                                 else
2233                                                         M_FST(s1, REG_SP, d);
2234                                         }
2235                                 }
2236 #endif /* !defined(ENABLE_SOFTFLOAT) */
2237                         }
2238
2239                         switch (iptr->opc) {
2240                         case ICMD_BUILTIN:
2241
2242                                 if (bte->stub == NULL) {
2243                                         disp = dseg_add_functionptr(cd, bte->fp);
2244                                 } else {
2245                                         disp = dseg_add_functionptr(cd, bte->stub);
2246                                 }
2247
2248                                 M_DSEG_LOAD(REG_PV, disp); /* pointer to built-in-function */
2249
2250                                 /* generate the actual call */
2251
2252                                 M_MOV(REG_LR, REG_PC);
2253                                 M_MOV(REG_PC, REG_PV);
2254                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2255                                 M_RECOMPUTE_PV(s1);
2256                                 break;
2257
2258                         case ICMD_INVOKESPECIAL:
2259                                 emit_nullpointer_check(cd, iptr, REG_A0);
2260                                 /* fall through */
2261
2262                         case ICMD_INVOKESTATIC:
2263                                 if (lm == NULL) {
2264                                         disp = dseg_add_unique_address(cd, NULL);
2265
2266                                         patcher_add_patch_ref(jd, PATCHER_invokestatic_special,
2267                                                                                 um, disp);
2268                                 }
2269                                 else
2270                                         disp = dseg_add_address(cd, lm->stubroutine);
2271
2272                                 M_DSEG_LOAD(REG_PV, disp);            /* Pointer to method */
2273
2274                                 /* generate the actual call */
2275
2276                                 M_MOV(REG_LR, REG_PC);
2277                                 M_MOV(REG_PC, REG_PV);
2278                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2279                                 M_RECOMPUTE_PV(s1);
2280                                 break;
2281
2282                         case ICMD_INVOKEVIRTUAL:
2283                                 if (lm == NULL) {
2284                                         patcher_add_patch_ref(jd, PATCHER_invokevirtual, um, 0);
2285
2286                                         s1 = 0;
2287                                 }
2288                                 else
2289                                         s1 = OFFSET(vftbl_t, table[0]) +
2290                                                 sizeof(methodptr) * lm->vftblindex;
2291
2292                                 /* implicit null-pointer check */
2293                                 M_LDR_INTERN(REG_METHODPTR, REG_A0,
2294                                                          OFFSET(java_object_t, vftbl));
2295                                 M_LDR_INTERN(REG_PV, REG_METHODPTR, s1);
2296
2297                                 /* generate the actual call */
2298
2299                                 M_MOV(REG_LR, REG_PC);
2300                                 M_MOV(REG_PC, REG_PV);
2301                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2302                                 M_RECOMPUTE_PV(s1);
2303                                 break;
2304
2305                         case ICMD_INVOKEINTERFACE:
2306                                 if (lm == NULL) {
2307                                         patcher_add_patch_ref(jd, PATCHER_invokeinterface, um, 0);
2308
2309                                         s1 = 0;
2310                                         s2 = 0;
2311                                 }
2312                                 else {
2313                                         s1 = OFFSET(vftbl_t, interfacetable[0]) -
2314                                                 sizeof(methodptr*) * lm->clazz->index;
2315                                         s2 = sizeof(methodptr) * (lm - lm->clazz->methods);
2316                                 }
2317
2318                                 /* implicit null-pointer check */
2319                                 M_LDR_INTERN(REG_METHODPTR, REG_A0,
2320                                                          OFFSET(java_object_t, vftbl));
2321                                 M_LDR_INTERN(REG_METHODPTR, REG_METHODPTR, s1);
2322                                 M_LDR_INTERN(REG_PV, REG_METHODPTR, s2);
2323
2324                                 /* generate the actual call */
2325
2326                                 M_MOV(REG_LR, REG_PC);
2327                                 M_MOV(REG_PC, REG_PV);
2328                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2329                                 M_RECOMPUTE_PV(s1);
2330                                 break;
2331                         }
2332
2333                         /* store size of call code in replacement point */
2334                         REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2335
2336                         /* store return value */
2337
2338                         d = md->returntype.type;
2339
2340 #if !defined(__SOFTFP__)
2341                         /* TODO: this is only a hack, since we use R0/R1 for float
2342                            return!  this depends on gcc; it is independent from
2343                            our ENABLE_SOFTFLOAT define */
2344                         if (iptr->opc == ICMD_BUILTIN && d != TYPE_VOID && IS_FLT_DBL_TYPE(d)) {
2345 #if 0 && !defined(NDEBUG)
2346                                 dolog("BUILTIN that returns float or double (%s.%s)", m->clazz->name->text, m->name->text);
2347 #endif
2348                                 /* we cannot use this macro, since it is not defined
2349                                    in ENABLE_SOFTFLOAT M_CAST_FLT_TO_INT_TYPED(d,
2350                                    REG_FRESULT, REG_RESULT_TYPED(d)); */
2351                                 if (IS_2_WORD_TYPE(d)) {
2352                                         DCD(0xed2d8102); /* stfd    f0, [sp, #-8]! */
2353                                         M_LDRD_UPDATE(REG_RESULT_PACKED, REG_SP, 8);
2354                                 } else {
2355                                         DCD(0xed2d0101); /* stfs    f0, [sp, #-4]!*/
2356                                         M_LDR_UPDATE(REG_RESULT, REG_SP, 4);
2357                                 }
2358                         }
2359 #endif
2360
2361                         if (d != TYPE_VOID) {
2362 #if !defined(ENABLE_SOFTFLOAT)
2363                                 if (IS_INT_LNG_TYPE(d)) {
2364 #endif /* !defined(ENABLE_SOFTFLOAT) */
2365                                         if (IS_2_WORD_TYPE(d)) {
2366                                                 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
2367                                                 M_LNGMOVE(REG_RESULT_PACKED, s1);
2368                                         }
2369                                         else {
2370                                                 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2371                                                 M_INTMOVE(REG_RESULT, s1);
2372                                         }
2373
2374 #if !defined(ENABLE_SOFTFLOAT)
2375                                 } else {
2376                                         s1 = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
2377                                         if (IS_2_WORD_TYPE(d))
2378                                                 M_CAST_L2D(REG_RESULT_PACKED, s1);
2379                                         else
2380                                                 M_CAST_I2F(REG_RESULT, s1);
2381                                 }
2382 #endif /* !defined(ENABLE_SOFTFLOAT) */
2383
2384                                 emit_store_dst(jd, iptr, s1);
2385                         }
2386                         break;
2387
2388                 case ICMD_CHECKCAST:  /* ..., objectref ==> ..., objectref            */
2389
2390                         if (!(iptr->flags.bits & INS_FLAG_ARRAY)) {
2391                                 /* object type cast-check */
2392
2393                         classinfo *super;
2394                         s4         superindex;
2395
2396                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2397                                 super      = NULL;
2398                                 superindex = 0;
2399                         }
2400                         else {
2401                                 super      = iptr->sx.s23.s3.c.cls;
2402                                 superindex = super->index;
2403                         }
2404
2405                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2406
2407                         /* if class is not resolved, check which code to call */
2408
2409                         if (super == NULL) {
2410                                 M_TST(s1, s1);
2411                                 emit_label_beq(cd, BRANCH_LABEL_1);
2412
2413                                 disp = dseg_add_unique_s4(cd, 0); /* super->flags */
2414                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_flags,
2415                                                     iptr->sx.s23.s3.c.ref, disp);
2416
2417                                 M_DSEG_LOAD(REG_ITMP2, disp);
2418                                 disp = dseg_add_s4(cd, ACC_INTERFACE);
2419                                 M_DSEG_LOAD(REG_ITMP3, disp);
2420                                 M_TST(REG_ITMP2, REG_ITMP3);
2421                                 emit_label_beq(cd, BRANCH_LABEL_2);
2422                         }
2423
2424                         /* interface checkcast code */
2425
2426                         if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2427                                 if ((super == NULL) || !IS_IMM(superindex)) {
2428                                         disp = dseg_add_unique_s4(cd, superindex);
2429                                 }
2430                                 if (super == NULL) {
2431                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_index,
2432                                                             iptr->sx.s23.s3.c.ref, disp);
2433                                 }
2434                                 else {
2435                                         M_TST(s1, s1);
2436                                         emit_label_beq(cd, BRANCH_LABEL_3);
2437                                 }
2438
2439                                 M_LDR_INTERN(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
2440                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, interfacetablelength));
2441
2442                                 /* we put unresolved or non-immediate superindices onto dseg */
2443                                 if ((super == NULL) || !IS_IMM(superindex)) {
2444                                         /* disp was computed before we added the patcher */
2445                                         M_DSEG_LOAD(REG_ITMP2, disp);
2446                                         M_CMP(REG_ITMP3, REG_ITMP2);
2447                                 } else {
2448                                         assert(IS_IMM(superindex));
2449                                         M_CMP_IMM(REG_ITMP3, superindex);
2450                                 }
2451
2452                                 emit_classcast_check(cd, iptr, BRANCH_LE, REG_ITMP3, s1);
2453
2454                                 /* if we loaded the superindex out of the dseg above, we do
2455                                    things differently here! */
2456                                 if ((super == NULL) || !IS_IMM(superindex)) {
2457
2458                                         M_LDR_INTERN(REG_ITMP3, s1, OFFSET(java_object_t, vftbl));
2459
2460                                         /* this assumes something */
2461                                         assert(OFFSET(vftbl_t, interfacetable[0]) == 0);
2462
2463                                         /* this does: REG_ITMP3 - superindex * sizeof(methodptr*) */
2464                                         assert(sizeof(methodptr*) == 4);
2465                                         M_SUB(REG_ITMP2, REG_ITMP3, REG_LSL(REG_ITMP2, 2));
2466
2467                                         s2 = 0;
2468
2469                                 } else {
2470
2471                                         s2 = OFFSET(vftbl_t, interfacetable[0]) -
2472                                                                 superindex * sizeof(methodptr*);
2473
2474                                 }
2475
2476                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, s2);
2477                                 M_TST(REG_ITMP3, REG_ITMP3);
2478                                 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_ITMP3, s1);
2479
2480                                 if (super == NULL)
2481                                         emit_label_br(cd, BRANCH_LABEL_4);
2482                                 else
2483                                         emit_label(cd, BRANCH_LABEL_3);
2484                         }
2485
2486                         /* class checkcast code */
2487
2488                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2489                                 if (super == NULL) {
2490                                         emit_label(cd, BRANCH_LABEL_2);
2491
2492                                         disp = dseg_add_unique_address(cd, NULL);
2493
2494                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_vftbl,
2495                                                             iptr->sx.s23.s3.c.ref,
2496                                                                                 disp);
2497                                 }
2498                                 else {
2499                                         disp = dseg_add_address(cd, super->vftbl);
2500
2501                                         M_TST(s1, s1);
2502                                         emit_label_beq(cd, BRANCH_LABEL_5);
2503                                 }
2504
2505                                 M_LDR_INTERN(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
2506                                 M_DSEG_LOAD(REG_ITMP3, disp);
2507
2508                                 M_LDR_INTERN(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, baseval));
2509                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, baseval));
2510                                 M_SUB(REG_ITMP2, REG_ITMP2, REG_ITMP3);
2511                                 M_DSEG_LOAD(REG_ITMP3, disp);
2512                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, diffval));
2513
2514                                 M_CMP(REG_ITMP2, REG_ITMP3);
2515                                 emit_classcast_check(cd, iptr, BRANCH_UGT, 0, s1);
2516
2517                                 if (super != NULL)
2518                                         emit_label(cd, BRANCH_LABEL_5);
2519                         }
2520
2521                         if (super == NULL) {
2522                                 emit_label(cd, BRANCH_LABEL_1);
2523                                 emit_label(cd, BRANCH_LABEL_4);
2524                         }
2525
2526                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
2527                         }
2528                         else {
2529                                 /* array type cast-check */
2530
2531                                 s1 = emit_load_s1(jd, iptr, REG_A0);
2532                                 M_INTMOVE(s1, REG_A0);
2533
2534                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2535                                         disp = dseg_add_unique_address(cd, NULL);
2536
2537                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
2538                                                                                 iptr->sx.s23.s3.c.ref,
2539                                                                                 disp);
2540                                 }
2541                                 else
2542                                         disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2543
2544                                 M_DSEG_LOAD(REG_A1, disp);
2545                                 disp = dseg_add_functionptr(cd, BUILTIN_arraycheckcast);
2546                                 M_DSEG_BRANCH(disp);
2547
2548                                 /* recompute pv */
2549                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2550                                 M_RECOMPUTE_PV(disp);
2551
2552                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2553                                 M_TST(REG_RESULT, REG_RESULT);
2554                                 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_RESULT, s1);
2555
2556                                 d = codegen_reg_of_dst(jd, iptr, s1);
2557                         }
2558
2559                         M_INTMOVE(s1, d);
2560                         emit_store_dst(jd, iptr, d);
2561                         break;
2562
2563                 case ICMD_INSTANCEOF: /* ..., objectref ==> ..., intresult            */
2564
2565                         {
2566                         classinfo *super;
2567                         s4         superindex;
2568
2569                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2570                                 super      = NULL;
2571                                 superindex = 0;
2572                         }
2573                         else {
2574                                 super      = iptr->sx.s23.s3.c.cls;
2575                                 superindex = super->index;
2576                         }
2577
2578                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2579                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
2580
2581                         if (s1 == d) {
2582                                 M_MOV(REG_ITMP1, s1);
2583                                 s1 = REG_ITMP1;
2584                         }
2585
2586                         /* if class is not resolved, check which code to call */
2587
2588                         if (super == NULL) {
2589                                 M_EOR(d, d, d);
2590
2591                                 M_TST(s1, s1);
2592                                 emit_label_beq(cd, BRANCH_LABEL_1);
2593
2594                                 disp = dseg_add_unique_s4(cd, 0); /* super->flags */
2595                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_flags,
2596                                                     iptr->sx.s23.s3.c.ref, disp);
2597
2598                                 M_DSEG_LOAD(REG_ITMP2, disp);
2599                                 disp = dseg_add_s4(cd, ACC_INTERFACE);
2600                                 M_DSEG_LOAD(REG_ITMP3, disp);
2601                                 M_TST(REG_ITMP2, REG_ITMP3);
2602                                 emit_label_beq(cd, BRANCH_LABEL_2);
2603                         }
2604
2605                         /* interface checkcast code */
2606
2607                         if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2608                                 if ((super == NULL) || !IS_IMM(superindex)) {
2609                                         disp = dseg_add_unique_s4(cd, superindex);
2610                                 }
2611                                 if (super == NULL) {
2612                                         /* If d == REG_ITMP2, then it's destroyed in check
2613                                            code above.  */
2614                                         if (d == REG_ITMP2)
2615                                                 M_EOR(d, d, d);
2616
2617                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_index,
2618                                                             iptr->sx.s23.s3.c.ref, disp);
2619                                 }
2620                                 else {
2621                                         M_EOR(d, d, d);
2622                                         M_TST(s1, s1);
2623                                         emit_label_beq(cd, BRANCH_LABEL_3);
2624                                 }
2625
2626                                 M_LDR_INTERN(REG_ITMP1, s1, OFFSET(java_object_t, vftbl));
2627                                 M_LDR_INTERN(REG_ITMP3,
2628                                                          REG_ITMP1, OFFSET(vftbl_t, interfacetablelength));
2629
2630                                 /* we put unresolved or non-immediate superindices onto dseg
2631                                    and do things slightly different */
2632                                 if ((super == NULL) || !IS_IMM(superindex)) {
2633                                         /* disp was computed before we added the patcher */
2634                                         M_DSEG_LOAD(REG_ITMP2, disp);
2635                                         M_CMP(REG_ITMP3, REG_ITMP2);
2636
2637                                         if (d == REG_ITMP2) {
2638                                                 M_EORLE(d, d, d);
2639                                                 M_BLE(4);
2640                                         } else {
2641                                                 M_BLE(3);
2642                                         }
2643
2644                                         /* this assumes something */
2645                                         assert(OFFSET(vftbl_t, interfacetable[0]) == 0);
2646
2647                                         /* this does: REG_ITMP3 - superindex * sizeof(methodptr*) */
2648                                         assert(sizeof(methodptr*) == 4);
2649                                         M_SUB(REG_ITMP1, REG_ITMP1, REG_LSL(REG_ITMP2, 2));
2650
2651                                         if (d == REG_ITMP2) {
2652                                                 M_EOR(d, d, d);
2653                                         }
2654
2655                                         s2 = 0;
2656
2657                                 } else {
2658                                         assert(IS_IMM(superindex));
2659                                         M_CMP_IMM(REG_ITMP3, superindex);
2660
2661                                         M_BLE(2);
2662
2663                                         s2 = OFFSET(vftbl_t, interfacetable[0]) -
2664                                                 superindex * sizeof(methodptr*);
2665
2666                                 }
2667
2668                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP1, s2);
2669                                 M_TST(REG_ITMP3, REG_ITMP3);
2670                                 M_MOVNE_IMM(1, d);
2671
2672                                 if (super == NULL)
2673                                         emit_label_br(cd, BRANCH_LABEL_4);
2674                                 else
2675                                         emit_label(cd, BRANCH_LABEL_3);
2676                         }
2677
2678                         /* class checkcast code */
2679
2680                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2681                                 if (super == NULL) {
2682                                         emit_label(cd, BRANCH_LABEL_2);
2683
2684                                         disp = dseg_add_unique_address(cd, NULL);
2685
2686                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_vftbl,
2687                                                             iptr->sx.s23.s3.c.ref, disp);
2688                                 }
2689                                 else {
2690                                         disp = dseg_add_address(cd, super->vftbl);
2691
2692                                         M_EOR(d, d, d);
2693                                         M_TST(s1, s1);
2694                                         emit_label_beq(cd, BRANCH_LABEL_5);
2695                                 }
2696
2697                                 M_LDR_INTERN(REG_ITMP1, s1, OFFSET(java_object_t, vftbl));
2698                                 M_DSEG_LOAD(REG_ITMP2, disp);
2699
2700                                 M_LDR_INTERN(REG_ITMP1, REG_ITMP1, OFFSET(vftbl_t, baseval));
2701                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2702                                 M_LDR_INTERN(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2703
2704                                 M_SUB(REG_ITMP1, REG_ITMP1, REG_ITMP3);
2705                                 M_CMP(REG_ITMP1, REG_ITMP2);
2706                                 /* If d == REG_ITMP2, then it's destroyed */
2707                                 if (d == REG_ITMP2)
2708                                         M_EOR(d, d, d);
2709                                 M_MOVLS_IMM(1, d);
2710
2711                                 if (super != NULL)
2712                                         emit_label(cd, BRANCH_LABEL_5);
2713                         }
2714
2715                         if (super == NULL) {
2716                                 emit_label(cd, BRANCH_LABEL_1);
2717                                 emit_label(cd, BRANCH_LABEL_4);
2718                         }
2719
2720                         }
2721
2722                         emit_store_dst(jd, iptr, d);
2723                         break;
2724
2725                 case ICMD_MULTIANEWARRAY:/* ..., cnt1, [cnt2, ...] ==> ..., arrayref  */
2726
2727                         /* copy sizes to stack if necessary  */
2728
2729                         MCODECHECK((iptr->s1.argcount << 1) + 64);
2730
2731                         for (s1 = iptr->s1.argcount; --s1 >= 0; ) {
2732
2733                                 var = VAR(iptr->sx.s23.s2.args[s1]);
2734
2735                                 /* copy SAVEDVAR sizes to stack */
2736
2737                                 if (!(var->flags & PREALLOC)) {
2738                                         s2 = emit_load(jd, iptr, var, REG_ITMP1);
2739                                         M_STR(s2, REG_SP, s1 * 4);
2740                                 }
2741                         }
2742
2743                         /* a0 = dimension count */
2744
2745                         assert(IS_IMM(iptr->s1.argcount));
2746                         M_MOV_IMM(REG_A0, iptr->s1.argcount);
2747
2748                         /* is patcher function set? */
2749
2750                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2751                                 disp = dseg_add_unique_address(cd, NULL);
2752
2753                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
2754                                                                         iptr->sx.s23.s3.c.ref, disp);
2755                         }
2756                         else
2757                                 disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2758
2759                         /* a1 = arraydescriptor */
2760
2761                         M_DSEG_LOAD(REG_A1, disp);
2762
2763                         /* a2 = pointer to dimensions = stack pointer */
2764
2765                         M_INTMOVE(REG_SP, REG_A2);
2766
2767                         /* call builtin_multianewarray here */
2768
2769                         disp = dseg_add_functionptr(cd, BUILTIN_multianewarray);
2770                         M_DSEG_BRANCH(disp);
2771
2772                         /* recompute pv */
2773
2774                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2775                         M_RECOMPUTE_PV(s1);
2776
2777                         /* check for exception before result assignment */
2778
2779                         emit_exception_check(cd, iptr);
2780
2781                         /* get arrayref */
2782
2783                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2784                         M_INTMOVE(REG_RESULT, d);
2785                         emit_store_dst(jd, iptr, d);
2786                         break;
2787
2788                 case ICMD_CHECKNULL:  /* ..., objectref  ==> ..., objectref           */
2789
2790                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2791                         emit_nullpointer_check(cd, iptr, s1);
2792                         break;
2793
2794                 default:
2795                         exceptions_throw_internalerror("Unknown ICMD %d during code generation",
2796                                                                                    iptr->opc);
2797                         return false;
2798                 } /* the big switch */
2799
2800                 } /* for all instructions */
2801
2802         } /* for all basic blocks */
2803
2804         /* generate traps */
2805
2806         emit_patcher_traps(jd);
2807
2808         /* everything's ok */
2809
2810         return true;
2811 }
2812
2813
2814 /* codegen_emit_stub_compiler **************************************************
2815
2816    Emits a stub routine which calls the compiler.
2817
2818 *******************************************************************************/
2819
2820 void codegen_emit_stub_compiler(jitdata *jd)
2821 {
2822         methodinfo  *m;
2823         codegendata *cd;
2824
2825         /* get required compiler data */
2826
2827         m  = jd->m;
2828         cd = jd->cd;
2829
2830         /* code for the stub */
2831
2832         M_LDR_INTERN(REG_ITMP1, REG_PC, -(2 * 4 + 2 * SIZEOF_VOID_P));
2833         M_LDR_INTERN(REG_PC, REG_PC, -(3 * 4 + 3 * SIZEOF_VOID_P));
2834 }
2835
2836
2837 /* codegen_emit_stub_native ****************************************************
2838
2839    Emits a stub routine which calls a native method.
2840
2841 *******************************************************************************/
2842
2843 void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f, int skipparams)
2844 {
2845         methodinfo  *m;
2846         codeinfo    *code;
2847         codegendata *cd;
2848         methoddesc  *md;
2849         s4           i, j;
2850         s4           t;
2851         int          s1, s2;
2852         int          disp;
2853
2854         /* get required compiler data */
2855
2856         m    = jd->m;
2857         code = jd->code;
2858         cd   = jd->cd;
2859
2860         /* initialize variables */
2861
2862         md = m->parseddesc;
2863
2864         /* calculate stackframe size */
2865
2866         cd->stackframesize =
2867                 4 +                                                /* return address  */
2868                 sizeof(stackframeinfo_t) +                         /* stackframeinfo  */
2869                 sizeof(localref_table) +                           /* localref_table  */
2870                 nmd->memuse * 4;                                   /* stack arguments */
2871
2872         /* align stack to 8-byte */
2873
2874         cd->stackframesize = (cd->stackframesize + 4) & ~4;
2875
2876         /* create method header */
2877
2878         (void) dseg_add_unique_address(cd, code);              /* CodeinfoPointer */
2879         (void) dseg_add_unique_s4(cd, cd->stackframesize);     /* FrameSize       */
2880         (void) dseg_add_unique_s4(cd, 0);                      /* IsLeaf          */
2881         (void) dseg_add_unique_s4(cd, 0);                      /* IntSave         */
2882         (void) dseg_add_unique_s4(cd, 0);                      /* FltSave         */
2883
2884         /* generate stub code */
2885
2886         M_STMFD(1<<REG_LR, REG_SP);
2887         M_SUB_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - 1);
2888
2889 #if !defined(NDEBUG)
2890         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
2891                 emit_verbosecall_enter(jd);
2892 #endif
2893
2894 #if defined(ENABLE_GC_CACAO)
2895         /* Save callee saved integer registers in stackframeinfo (GC may
2896            need to recover them during a collection). */
2897
2898         disp = cd->stackframesize - SIZEOF_VOID_P - sizeof(stackframeinfo_t) +
2899                 OFFSET(stackframeinfo_t, intregs);
2900
2901         for (i = 0; i < INT_SAV_CNT; i++)
2902                 M_STR_INTERN(abi_registers_integer_saved[i], REG_SP, disp + i * 4);
2903 #endif
2904
2905         /* Save integer and float argument registers (these are 4
2906            registers, stack is 8-byte aligned). */
2907
2908         M_STMFD(BITMASK_ARGS, REG_SP);
2909         /* TODO: floating point */
2910
2911         /* create native stackframe info */
2912
2913         M_ADD_IMM(REG_A0, REG_SP, 4*4);
2914         M_MOV(REG_A1, REG_PV);
2915         disp = dseg_add_functionptr(cd, codegen_start_native_call);
2916         M_DSEG_BRANCH(disp);
2917
2918         /* recompute pv */
2919
2920         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2921         M_RECOMPUTE_PV(s1);
2922
2923         /* remember class argument */
2924
2925         if (m->flags & ACC_STATIC)
2926                 M_MOV(REG_ITMP3, REG_RESULT);
2927
2928         /* Restore integer and float argument registers (these are 4
2929            registers, stack is 8-byte aligned). */
2930
2931         M_LDMFD(BITMASK_ARGS, REG_SP);
2932         /* TODO: floating point */
2933
2934         /* copy or spill arguments to new locations */
2935         /* ATTENTION: the ARM has only integer argument registers! */
2936
2937         for (i = md->paramcount - 1, j = i + skipparams; i >= 0; i--, j--) {
2938                 t = md->paramtypes[i].type;
2939
2940                 if (!md->params[i].inmemory) {
2941                         s1 = md->params[i].regoff;
2942                         s2 = nmd->params[j].regoff;
2943
2944                         if (!nmd->params[j].inmemory) {
2945 #if !defined(__ARM_EABI__)
2946                                 SPLIT_OPEN(t, s2, REG_ITMP1);
2947 #endif
2948
2949                                 if (IS_2_WORD_TYPE(t))
2950                                         M_LNGMOVE(s1, s2);
2951                                 else
2952                                         M_INTMOVE(s1, s2);
2953
2954 #if !defined(__ARM_EABI__)
2955                                 SPLIT_STORE_AND_CLOSE(t, s2, 0);
2956 #endif
2957                         }
2958                         else {
2959                                 if (IS_2_WORD_TYPE(t))
2960                                         M_LST(s1, REG_SP, s2);
2961                                 else
2962                                         M_IST(s1, REG_SP, s2);
2963                         }
2964                 }
2965                 else {
2966                         s1 = md->params[i].regoff + cd->stackframesize;
2967                         s2 = nmd->params[j].regoff;
2968
2969                         if (IS_2_WORD_TYPE(t)) {
2970                                 M_LLD(REG_ITMP12_PACKED, REG_SP, s1);
2971                                 M_LST(REG_ITMP12_PACKED, REG_SP, s2);
2972                         }
2973                         else {
2974                                 M_ILD(REG_ITMP1, REG_SP, s1);
2975                                 M_IST(REG_ITMP1, REG_SP, s2);
2976                         }
2977                 }
2978         }
2979
2980         /* Handle native Java methods. */
2981
2982         if (m->flags & ACC_NATIVE) {
2983                 /* put class into second argument register */
2984
2985                 if (m->flags & ACC_STATIC)
2986                         M_MOV(REG_A1, REG_ITMP3);
2987
2988                 /* put env into first argument register */
2989
2990                 disp = dseg_add_address(cd, VM_get_jnienv());
2991                 M_DSEG_LOAD(REG_A0, disp);
2992         }
2993
2994         /* Call the native function. */
2995
2996         disp = dseg_add_functionptr(cd, f);
2997         M_DSEG_BRANCH(disp);
2998
2999         /* recompute pv */
3000         /* TODO: this is only needed because of the tracer ... do we
3001            really need it? */
3002
3003         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3004         M_RECOMPUTE_PV(s1);
3005
3006 #if !defined(__SOFTFP__)
3007         /* TODO: this is only a hack, since we use R0/R1 for float return! */
3008         /* this depends on gcc; it is independent from our ENABLE_SOFTFLOAT define */
3009         if (md->returntype.type != TYPE_VOID && IS_FLT_DBL_TYPE(md->returntype.type)) {
3010 #if 0 && !defined(NDEBUG)
3011                 dolog("NATIVESTUB that returns float or double (%s.%s)", m->clazz->name->text, m->name->text);
3012 #endif
3013                 /* we cannot use this macro, since it is not defined in ENABLE_SOFTFLOAT */
3014                 /* M_CAST_FLT_TO_INT_TYPED(md->returntype.type, REG_FRESULT, REG_RESULT_TYPED(md->returntype.type)); */
3015                 if (IS_2_WORD_TYPE(md->returntype.type)) {
3016                         DCD(0xed2d8102); /* stfd    f0, [sp, #-8]! */
3017                         M_LDRD_UPDATE(REG_RESULT_PACKED, REG_SP, 8);
3018                 } else {
3019                         DCD(0xed2d0101); /* stfs    f0, [sp, #-4]!*/
3020                         M_LDR_UPDATE(REG_RESULT, REG_SP, 4);
3021                 }
3022         }
3023 #endif
3024
3025 #if !defined(NDEBUG)
3026         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
3027                 emit_verbosecall_exit(jd);
3028 #endif
3029
3030         /* remove native stackframe info */
3031         /* TODO: improve this store/load */
3032
3033         M_STMFD(BITMASK_RESULT, REG_SP);
3034
3035         M_ADD_IMM(REG_A0, REG_SP, 2*4);
3036         M_MOV(REG_A1, REG_PV);
3037         disp = dseg_add_functionptr(cd, codegen_finish_native_call);
3038         M_DSEG_BRANCH(disp);
3039         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3040         M_RECOMPUTE_PV(s1);
3041
3042         M_MOV(REG_ITMP1_XPTR, REG_RESULT);
3043         M_LDMFD(BITMASK_RESULT, REG_SP);
3044
3045 #if defined(ENABLE_GC_CACAO)
3046         /* restore callee saved int registers from stackframeinfo (GC might have  */
3047         /* modified them during a collection).                                    */
3048
3049         disp = cd->stackframesize - SIZEOF_VOID_P - sizeof(stackframeinfo_t) +
3050                 OFFSET(stackframeinfo_t, intregs);
3051
3052         for (i = 0; i < INT_SAV_CNT; i++)
3053                 M_LDR_INTERN(abi_registers_integer_saved[i], REG_SP, disp + i * 4);
3054 #endif
3055
3056         /* finish stub code, but do not yet return to caller */
3057
3058         M_ADD_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - 1);
3059         M_LDMFD(1<<REG_LR, REG_SP);
3060
3061         /* check for exception */
3062
3063         M_TST(REG_ITMP1_XPTR, REG_ITMP1_XPTR);
3064         M_MOVEQ(REG_LR, REG_PC);            /* if no exception, return to caller  */
3065
3066         /* handle exception here */
3067
3068         M_SUB_IMM(REG_ITMP2_XPC, REG_LR, 4);/* move fault address into xpc        */
3069
3070         disp = dseg_add_functionptr(cd, asm_handle_nat_exception);
3071         M_DSEG_LOAD(REG_ITMP3, disp);       /* load asm exception handler address */
3072         M_MOV(REG_PC, REG_ITMP3);           /* jump to asm exception handler      */
3073 }
3074
3075
3076 /* asm_debug *******************************************************************
3077
3078    Lazy debugger!
3079
3080 *******************************************************************************/
3081
3082 void asm_debug(int a1, int a2, int a3, int a4)
3083 {
3084         printf("===> i am going to exit after this debugging message!\n");
3085         printf("got asm_debug(%p, %p, %p, %p)\n",(void*)a1,(void*)a2,(void*)a3,(void*)a4);
3086         vm_abort("leave you now");
3087 }
3088
3089
3090 /*
3091  * These are local overrides for various environment variables in Emacs.
3092  * Please do not remove this and leave it at the end of the file, where
3093  * Emacs will automagically detect them.
3094  * ---------------------------------------------------------------------
3095  * Local variables:
3096  * mode: c
3097  * indent-tabs-mode: t
3098  * c-basic-offset: 4
3099  * tab-width: 4
3100  * End:
3101  * vim:noexpandtab:sw=4:ts=4:
3102  */