src/vm/jit/arm/codegen.c

   1 /* src/vm/jit/arm/codegen.c - machine code generator for Arm
   2
   3    Copyright (C) 1996-2005, 2006, 2007 R. Grafl, A. Krall, C. Kruegel,
   4    C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
   5    E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
   6    J. Wenninger, Institut f. Computersprachen - TU Wien
   7
   8    This file is part of CACAO.
   9
  10    This program is free software; you can redistribute it and/or
  11    modify it under the terms of the GNU General Public License as
  12    published by the Free Software Foundation; either version 2, or (at
  13    your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful, but
  16    WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18    General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program; if not, write to the Free Software
  22    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  23    02110-1301, USA.
  24
  25 */
  26
  27
  28 #include "config.h"
  29
  30 #include <assert.h>
  31 #include <stdio.h>
  32
  33 #include "vm/types.h"
  34
  35 #include "md-abi.h"
  36
  37 #include "vm/jit/arm/arch.h"
  38 #include "vm/jit/arm/codegen.h"
  39
  40 #include "mm/memory.h"
  41
  42 #include "native/localref.h"
  43 #include "native/native.h"
  44
  45 #include "threads/lock-common.h"
  46
  47 #include "vm/builtin.h"
  48 #include "vm/exceptions.h"
  49 #include "vm/global.h"
  50 #include "vm/vm.h"
  51
  52 #include "vm/jit/abi.h"
  53 #include "vm/jit/asmpart.h"
  54 #include "vm/jit/codegen-common.h"
  55 #include "vm/jit/dseg.h"
  56 #include "vm/jit/emit-common.h"
  57 #include "vm/jit/jit.h"
  58 #include "vm/jit/md.h"
  59 #include "vm/jit/methodheader.h"
  60 #include "vm/jit/parse.h"
  61 #include "vm/jit/patcher-common.h"
  62 #include "vm/jit/reg.h"
  63
  64 #if defined(ENABLE_LSRA)
  65 #include "vm/jit/allocator/lsra.h"
  66 #endif
  67
  68 #include "vmcore/loader.h"
  69 #include "vmcore/options.h"
  70
  71
  72 /* codegen_emit ****************************************************************
  73
  74    Generates machine code.
  75
  76 *******************************************************************************/
  77
  78 bool codegen_emit(jitdata *jd)
  79 {
  80         methodinfo         *m;
  81         codeinfo           *code;
  82         codegendata        *cd;
  83         registerdata       *rd;
  84         s4              i, t, len;
  85         s4              s1, s2, s3, d;
  86         s4              disp;
  87         varinfo        *var;
  88         basicblock     *bptr;
  89         instruction    *iptr;
  90
  91         s4              spilledregs_num;
  92         s4              savedregs_num;
  93         u2              savedregs_bitmask;
  94         u2              currentline;
  95
  96         methodinfo         *lm;             /* local methodinfo for ICMD_INVOKE* */
  97         unresolved_method  *um;
  98         builtintable_entry *bte;
  99         methoddesc         *md;
 100         fieldinfo          *fi;
 101         unresolved_field   *uf;
 102         int                 fieldtype;
 103         int                 varindex;
 104
 105         /* get required compiler data */
 106
 107         m    = jd->m;
 108         code = jd->code;
 109         cd   = jd->cd;
 110         rd   = jd->rd;
 111
 112         /* prevent compiler warnings */
 113
 114         lm  = NULL;
 115         um  = NULL;
 116         bte = NULL;
 117
 118         fieldtype = -1;
 119
 120         /* space to save used callee saved registers */
 121
 122         savedregs_num = code_is_leafmethod(code) ? 0 : 1; /* space to save the LR */
 123
 124         savedregs_num += (INT_SAV_CNT - rd->savintreguse);
 125         /*savedregs_num += (FLT_SAV_CNT - rd->savfltreguse);*/
 126         assert((FLT_SAV_CNT - rd->savfltreguse) == 0);
 127
 128         spilledregs_num = rd->memuse;
 129
 130 #if defined(ENABLE_THREADS)        /* space to save argument of monitor_enter */
 131         if (checksync && code_is_synchronized(code))
 132                 spilledregs_num++;
 133 #endif
 134
 135         cd->stackframesize = spilledregs_num * 8 + savedregs_num * 4;
 136
 137         /* XXX QUICK FIX: We shouldn't align the stack in Java code, but
 138            only in native stubs. */
 139         /* align stack to 8-byte */
 140
 141         cd->stackframesize = (cd->stackframesize + 4) & ~4;
 142
 143         /* SECTION: Method Header */
 144         /* create method header */
 145
 146         (void) dseg_add_unique_address(cd, code);              /* CodeinfoPointer */
 147         (void) dseg_add_unique_s4(cd, cd->stackframesize);     /* FrameSize       */
 148
 149         code->synchronizedoffset = rd->memuse * 8;
 150
 151         /* REMOVEME: We still need it for exception handling in assembler. */
 152
 153         if (code_is_leafmethod(code))
 154                 (void) dseg_add_unique_s4(cd, 1);
 155         else
 156                 (void) dseg_add_unique_s4(cd, 0);
 157
 158         (void) dseg_add_unique_s4(cd, INT_SAV_CNT - rd->savintreguse); /* IntSave */
 159         (void) dseg_add_unique_s4(cd, FLT_SAV_CNT - rd->savfltreguse); /* FltSave */
 160
 161         (void) dseg_addlinenumbertablesize(cd);
 162
 163         /* save return address and used callee saved registers */
 164
 165         savedregs_bitmask = 0;
 166
 167         if (!code_is_leafmethod(code))
 168                 savedregs_bitmask = (1<<REG_LR);
 169
 170         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--)
 171                 savedregs_bitmask |= (1<<(rd->savintregs[i]));
 172
 173 #if !defined(NDEBUG)
 174         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
 175                 log_text("!!! CODEGEN: floating-point callee saved registers are not saved to stack (SEVERE! STACK IS MESSED UP!)");
 176                 /* TODO: floating-point */
 177         }
 178 #endif
 179
 180         if (savedregs_bitmask)
 181                 M_STMFD(savedregs_bitmask, REG_SP);
 182
 183         /* create additional stack frame for spilled variables (if necessary) */
 184
 185         if ((cd->stackframesize / 4 - savedregs_num) > 0)
 186                 M_SUB_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - savedregs_num);
 187
 188         /* take arguments out of register or stack frame */
 189
 190         md = m->parseddesc;
 191         for (i = 0, len = 0; i < md->paramcount; i++) {
 192                 s1 = md->params[i].regoff;
 193                 t = md->paramtypes[i].type;
 194
 195                 varindex = jd->local_map[len * 5 + t];
 196
 197                 len += (IS_2_WORD_TYPE(t)) ? 2 : 1;          /* 2 word type arguments */
 198
 199                 if (varindex == UNUSED)
 200                         continue;
 201
 202                 var = VAR(varindex);
 203
 204                 /* ATTENTION: we use interger registers for all arguments (even float) */
 205 #if !defined(ENABLE_SOFTFLOAT)
 206                 if (IS_INT_LNG_TYPE(t)) {
 207 #endif
 208                         if (!md->params[i].inmemory) {
 209                                 if (!(var->flags & INMEMORY)) {
 210                                         if (IS_2_WORD_TYPE(t))
 211                                                 M_LNGMOVE(s1, var->vv.regoff);
 212                                         else
 213                                                 M_INTMOVE(s1, var->vv.regoff);
 214                                 }
 215                                 else {
 216                                         if (IS_2_WORD_TYPE(t))
 217                                                 M_LST(s1, REG_SP, var->vv.regoff);
 218                                         else
 219                                                 M_IST(s1, REG_SP, var->vv.regoff);
 220                                 }
 221                         }
 222                         else {                                   /* stack arguments       */
 223                                 if (!(var->flags & INMEMORY)) {      /* stack arg -> register */
 224                                         if (IS_2_WORD_TYPE(t))
 225                                                 M_LLD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 226                                         else
 227                                                 M_ILD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 228                                 }
 229                                 else {                               /* stack arg -> spilled  */
 230                                         /* Reuse Memory Position on Caller Stack */
 231                                         var->vv.regoff = cd->stackframesize + s1;
 232                                 }
 233                         }
 234 #if !defined(ENABLE_SOFTFLOAT)
 235                 }
 236                 else {
 237                         if (!md->params[i].inmemory) {
 238                                 if (!(var->flags & INMEMORY)) {
 239                                         if (IS_2_WORD_TYPE(t))
 240                                                 M_CAST_L2D(s1, var->vv.regoff);
 241                                         else
 242                                                 M_CAST_I2F(s1, var->vv.regoff);
 243                                 }
 244                                 else {
 245                                         if (IS_2_WORD_TYPE(t))
 246                                                 M_LST(s1, REG_SP, var->vv.regoff);
 247                                         else
 248                                                 M_IST(s1, REG_SP, var->vv.regoff);
 249                                 }
 250                         }
 251                         else {
 252                                 if (!(var->flags & INMEMORY)) {
 253                                         if (IS_2_WORD_TYPE(t))
 254                                                 M_DLD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 255                                         else
 256                                                 M_FLD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 257                                 }
 258                                 else {
 259                                         /* Reuse Memory Position on Caller Stack */
 260                                         var->vv.regoff = cd->stackframesize + s1;
 261                                 }
 262                         }
 263                 }
 264 #endif /* !defined(ENABLE_SOFTFLOAT) */
 265         }
 266
 267 #if defined(ENABLE_THREADS)
 268         /* call monitorenter function */
 269
 270         if (checksync && code_is_synchronized(code)) {
 271                 /* stack offset for monitor argument */
 272
 273                 s1 = rd->memuse * 8;
 274
 275 # if !defined(NDEBUG)
 276                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 277                         M_STMFD(BITMASK_ARGS, REG_SP);
 278                         s1 += 4 * 4;
 279                 }
 280 # endif
 281
 282                 /* get the correct lock object */
 283
 284                 if (m->flags & ACC_STATIC) {
 285                         disp = dseg_add_address(cd, &m->class->object.header);
 286                         M_DSEG_LOAD(REG_A0, disp);
 287                 }
 288                 else {
 289                         emit_nullpointer_check_force(cd, iptr, REG_A0);
 290                 }
 291
 292                 M_STR(REG_A0, REG_SP, s1);
 293                 disp = dseg_add_functionptr(cd, LOCK_monitor_enter);
 294                 M_DSEG_BRANCH(disp);
 295                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
 296                 M_RECOMPUTE_PV(s1);
 297
 298 # if !defined(NDEBUG)
 299                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
 300                         M_LDMFD(BITMASK_ARGS, REG_SP);
 301 # endif
 302         }
 303 #endif
 304
 305 #if !defined(NDEBUG)
 306         /* call trace function */
 307
 308         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
 309                 emit_verbosecall_enter(jd);
 310 #endif
 311
 312         /* end of header generation */
 313
 314         /* create replacement points */
 315         REPLACEMENT_POINTS_INIT(cd, jd);
 316
 317         /* SECTION: ICMD Code Generation */
 318         /* for all basic blocks */
 319
 320         for (bptr = jd->basicblocks; bptr != NULL; bptr = bptr->next) {
 321
 322                 bptr->mpc = (s4) (cd->mcodeptr - cd->mcodebase);
 323
 324                 /* is this basic block reached? */
 325
 326                 if (bptr->flags < BBREACHED)
 327                         continue;
 328
 329                 /* branch resolving */
 330
 331                 codegen_resolve_branchrefs(cd, bptr);
 332
 333                 /* handle replacement points */
 334                 REPLACEMENT_POINT_BLOCK_START(cd, bptr);
 335
 336                 /* copy interface registers to their destination */
 337
 338                 len = bptr->indepth;
 339
 340                 MCODECHECK(64+len);
 341
 342 #if defined(ENABLE_LSRA)
 343                 if (opt_lsra) {
 344                 while (len) {
 345                         len--;
 346                         var = VAR(bptr->invars[len]);
 347                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 348                                 if (!(var->flags & INMEMORY))
 349                                         d= var->vv.regoff;
 350                                 else
 351                                         d=REG_ITMP1;
 352                                 M_INTMOVE(REG_ITMP1, d);
 353                                 emit_store(jd, NULL, var, d);
 354                         }
 355                 }
 356                 } else {
 357 #endif
 358                 while (len) {
 359                         len--;
 360                         var = VAR(bptr->invars[len]);
 361
 362                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 363                                 d = codegen_reg_of_var(0, var, REG_ITMP1);
 364                                 M_INTMOVE(REG_ITMP1, d);
 365                                 emit_store(jd, NULL, var, d);
 366                         }
 367                         else {
 368                                 assert((var->flags & INOUT));
 369                         }
 370                 }
 371 #if defined(ENABLE_LSRA)
 372                 }
 373 #endif
 374
 375                 /* for all instructions */
 376                 len = bptr->icount;
 377                 currentline = 0;
 378                 for (iptr = bptr->iinstr; len > 0; len--, iptr++) {
 379
 380                         /* add line number */
 381                         if (iptr->line != currentline) {
 382                                 dseg_addlinenumber(cd, iptr->line);
 383                                 currentline = iptr->line;
 384                         }
 385
 386                         MCODECHECK(64);   /* an instruction usually needs < 64 words      */
 387
 388                 /* the big switch */
 389                 switch (iptr->opc) {
 390
 391                 case ICMD_NOP:        /* ...  ==> ...                                 */
 392                 case ICMD_POP:        /* ..., value  ==> ...                          */
 393                 case ICMD_POP2:       /* ..., value, value  ==> ...                   */
 394                         break;
 395
 396                 /* constant operations ************************************************/
 397
 398                 case ICMD_ICONST:     /* ...  ==> ..., constant                       */
 399
 400                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 401                         ICONST(d, iptr->sx.val.i);
 402                         emit_store_dst(jd, iptr, d);
 403                         break;
 404
 405                 case ICMD_ACONST:     /* ... ==> ..., constant                        */
 406
 407                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 408                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
 409                                 disp = dseg_add_unique_address(cd, NULL);
 410
 411                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
 412                                                     iptr->sx.val.c.ref, disp);
 413
 414                                 M_DSEG_LOAD(d, disp);
 415                         }
 416                         else {
 417                                 ICONST(d, (u4) iptr->sx.val.anyptr);
 418                         }
 419                         emit_store_dst(jd, iptr, d);
 420                         break;
 421
 422                 case ICMD_LCONST:     /* ...  ==> ..., constant                       */
 423
 424                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 425                         LCONST(d, iptr->sx.val.l);
 426                         emit_store_dst(jd, iptr, d);
 427                         break;
 428
 429                 case ICMD_FCONST:     /* ...  ==> ..., constant                       */
 430
 431 #if defined(ENABLE_SOFTFLOAT)
 432                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 433                         ICONST(d, iptr->sx.val.i);
 434                         emit_store_dst(jd, iptr, d);
 435 #else
 436                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 437                         FCONST(d, iptr->sx.val.f);
 438                         emit_store_dst(jd, iptr, d);
 439 #endif
 440                         break;
 441
 442                 case ICMD_DCONST:     /* ...  ==> ..., constant                       */
 443
 444 #if defined(ENABLE_SOFTFLOAT)
 445                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 446                         LCONST(d, iptr->sx.val.l);
 447                         emit_store_dst(jd, iptr, d);
 448 #else
 449                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 450                         DCONST(d, iptr->sx.val.d);
 451                         emit_store_dst(jd, iptr, d);
 452 #endif
 453                         break;
 454
 455
 456                 /* load/store/copy/move operations ************************************/
 457
 458                 case ICMD_ILOAD:      /* ...  ==> ..., content of local variable      */
 459                 case ICMD_ALOAD:      /* op1 = local variable                         */
 460                 case ICMD_FLOAD:
 461                 case ICMD_LLOAD:
 462                 case ICMD_DLOAD:
 463                 case ICMD_ISTORE:     /* ..., value  ==> ...                          */
 464                 case ICMD_FSTORE:
 465                 case ICMD_LSTORE:
 466                 case ICMD_DSTORE:
 467                 case ICMD_COPY:
 468                 case ICMD_MOVE:
 469
 470                         emit_copy(jd, iptr);
 471                         break;
 472
 473                 case ICMD_ASTORE:
 474
 475                         if (!(iptr->flags.bits & INS_FLAG_RETADDR))
 476                                 emit_copy(jd, iptr);
 477                         break;
 478
 479
 480                 /* integer operations *************************************************/
 481
 482                 case ICMD_INT2BYTE:   /* ..., value  ==> ..., value                   */
 483
 484                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 485                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 486                         M_MOV(d, REG_LSL(s1, 24));
 487                         M_MOV(d, REG_ASR(d, 24));
 488                         emit_store_dst(jd, iptr, d);
 489                         break;
 490
 491                 case ICMD_INT2CHAR:   /* ..., value  ==> ..., value                   */
 492
 493                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 494                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 495                         M_MOV(d, REG_LSL(s1, 16));
 496                         M_MOV(d, REG_LSR(d, 16)); /* ATTENTION: char is unsigned */
 497                         emit_store_dst(jd, iptr, d);
 498                         break;
 499
 500                 case ICMD_INT2SHORT:  /* ..., value  ==> ..., value                   */
 501
 502                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 503                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 504                         M_MOV(d, REG_LSL(s1, 16));
 505                         M_MOV(d, REG_ASR(d, 16));
 506                         emit_store_dst(jd, iptr, d);
 507                         break;
 508
 509                 case ICMD_I2L:        /* ..., value  ==> ..., value                   */
 510
 511                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 512                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 513                         M_INTMOVE(s1, GET_LOW_REG(d));
 514                         M_MOV(GET_HIGH_REG(d), REG_ASR(s1, 31));
 515                         emit_store_dst(jd, iptr, d);
 516                         break;
 517
 518                 case ICMD_L2I:        /* ..., value  ==> ..., value                   */
 519
 520                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 521                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 522                         M_INTMOVE(s1, d);
 523                         emit_store_dst(jd, iptr, d);
 524                         break;
 525
 526                 case ICMD_INEG:       /* ..., value  ==> ..., - value                 */
 527
 528                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 529                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 530                         M_RSB_IMM(d, s1, 0);
 531                         emit_store_dst(jd, iptr, d);
 532                         break;
 533
 534                 case ICMD_LNEG:       /* ..., value  ==> ..., - value                 */
 535
 536                         s1 = emit_load_s1(jd, iptr, REG_ITMP12_PACKED);
 537                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 538                         M_RSB_IMMS(GET_LOW_REG(d), GET_LOW_REG(s1), 0);
 539                         M_RSC_IMM(GET_HIGH_REG(d), GET_HIGH_REG(s1), 0);
 540                         emit_store_dst(jd, iptr, d);
 541                         break;
 542
 543                 case ICMD_IADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 544
 545                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 546                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 547                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 548                         M_ADD(d, s1, s2);
 549                         emit_store_dst(jd, iptr, d);
 550                         break;
 551
 552                 case ICMD_LADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 553
 554                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 555                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 556                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 557                         M_ADD_S(GET_LOW_REG(d), s1, s2);
 558                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 559                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 560                         M_ADC(GET_HIGH_REG(d), s1, s2);
 561                         emit_store_dst(jd, iptr, d);
 562                         break;
 563
 564                 case ICMD_IADDCONST:
 565                 case ICMD_IINC:
 566
 567                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 568                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 569
 570                         if (IS_IMM(iptr->sx.val.i)) {
 571                                 M_ADD_IMM(d, s1, iptr->sx.val.i);
 572                         } else if (IS_IMM(-iptr->sx.val.i)) {
 573                                 M_SUB_IMM(d, s1, (-iptr->sx.val.i));
 574                         } else {
 575                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 576                                 M_ADD(d, s1, REG_ITMP3);
 577                         }
 578
 579                         emit_store_dst(jd, iptr, d);
 580                         break;
 581
 582                 case ICMD_LADDCONST:  /* ..., value  ==> ..., value + constant        */
 583                                       /* sx.val.l = constant                          */
 584
 585                         s3 = iptr->sx.val.l & 0xffffffff;
 586                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 587                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 588                         if (IS_IMM(s3))
 589                                 M_ADD_IMMS(GET_LOW_REG(d), s1, s3);
 590                         else {
 591                                 ICONST(REG_ITMP3, s3);
 592                                 M_ADD_S(GET_LOW_REG(d), s1, REG_ITMP3);
 593                         }
 594                         s3 = iptr->sx.val.l >> 32;
 595                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP2);
 596                         if (IS_IMM(s3))
 597                                 M_ADC_IMM(GET_HIGH_REG(d), s1, s3);
 598                         else {
 599                                 ICONST(REG_ITMP3, s3);
 600                                 M_ADC(GET_HIGH_REG(d), s1, REG_ITMP3);
 601                         }
 602                         emit_store_dst(jd, iptr, d);
 603                         break;
 604
 605                 case ICMD_ISUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 606
 607                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 608                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 609                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 610                         M_SUB(d, s1, s2);
 611                         emit_store_dst(jd, iptr, d);
 612                         break;
 613
 614                 case ICMD_LSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 615
 616                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 617                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 618                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 619                         M_SUB_S(GET_LOW_REG(d), s1, s2);
 620                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 621                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 622                         M_SBC(GET_HIGH_REG(d), s1, s2);
 623                         emit_store_dst(jd, iptr, d);
 624                         break;
 625
 626                 case ICMD_ISUBCONST:  /* ..., value  ==> ..., value + constant        */
 627                                       /* sx.val.i = constant                          */
 628
 629                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 630                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 631                         if (IS_IMM(iptr->sx.val.i))
 632                                 M_SUB_IMM(d, s1, iptr->sx.val.i);
 633                         else {
 634                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 635                                 M_SUB(d, s1, REG_ITMP3);
 636                         }
 637                         emit_store_dst(jd, iptr, d);
 638                         break;
 639
 640                 case ICMD_LSUBCONST:  /* ..., value  ==> ..., value - constant        */
 641                                       /* sx.val.l = constant                          */
 642
 643                         s3 = iptr->sx.val.l & 0xffffffff;
 644                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 645                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 646                         if (IS_IMM(s3))
 647                                 M_SUB_IMMS(GET_LOW_REG(d), s1, s3);
 648                         else {
 649                                 ICONST(REG_ITMP3, s3);
 650                                 M_SUB_S(GET_LOW_REG(d), s1, REG_ITMP3);
 651                         }
 652                         s3 = iptr->sx.val.l >> 32;
 653                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP2);
 654                         if (IS_IMM(s3))
 655                                 M_SBC_IMM(GET_HIGH_REG(d), s1, s3);
 656                         else {
 657                                 ICONST(REG_ITMP3, s3);
 658                                 M_SBC(GET_HIGH_REG(d), s1, REG_ITMP3);
 659                         }
 660                         emit_store_dst(jd, iptr, d);
 661                         break;
 662
 663                 case ICMD_IMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 664
 665                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 666                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 667                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 668                         M_MUL(d, s1, s2);
 669                         emit_store_dst(jd, iptr, d);
 670                         break;
 671
 672                 case ICMD_IDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 673                 case ICMD_IREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 674
 675                         s1 = emit_load_s1(jd, iptr, REG_A0);
 676                         s2 = emit_load_s2(jd, iptr, REG_A1);
 677                         emit_arithmetic_check(cd, iptr, s2);
 678
 679                         /* move arguments into argument registers */
 680                         M_INTMOVE(s1, REG_A0);
 681                         M_INTMOVE(s2, REG_A1);
 682
 683                         /* call builtin function */
 684                         bte = iptr->sx.s23.s3.bte;
 685                         disp = dseg_add_functionptr(cd, bte->fp);
 686                         M_DSEG_BRANCH(disp);
 687
 688                         /* recompute pv */
 689                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
 690                         M_RECOMPUTE_PV(s1);
 691
 692                         /* move result into destination register */
 693                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
 694                         M_INTMOVE(REG_RESULT, d);
 695                         emit_store_dst(jd, iptr, d);
 696                         break;
 697
 698                 case ICMD_LDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 699                 case ICMD_LREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 700
 701                         /* move arguments into argument registers */
 702
 703                         s1 = emit_load_s1(jd, iptr, REG_A0_A1_PACKED);
 704                         s2 = emit_load_s2(jd, iptr, REG_A2_A3_PACKED);
 705                         /* XXX TODO: only do this if arithmetic check is really done! */
 706                         M_ORR(GET_HIGH_REG(s2), GET_LOW_REG(s2), REG_ITMP3);
 707                         emit_arithmetic_check(cd, iptr, REG_ITMP3);
 708
 709                         M_LNGMOVE(s1, REG_A0_A1_PACKED);
 710                         M_LNGMOVE(s2, REG_A2_A3_PACKED);
 711
 712                         /* call builtin function */
 713                         bte = iptr->sx.s23.s3.bte;
 714                         disp = dseg_add_functionptr(cd, bte->fp);
 715                         M_DSEG_BRANCH(disp);
 716
 717                         /* recompute pv */
 718                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
 719                         M_RECOMPUTE_PV(s1);
 720
 721                         /* move result into destination register */
 722                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
 723                         M_LNGMOVE(REG_RESULT_PACKED, d);
 724                         emit_store_dst(jd, iptr, d);
 725                         break;
 726
 727                 case ICMD_IMULPOW2:   /* ..., value  ==> ..., value * (2 ^ constant)  */
 728                                       /* sx.val.i = constant                          */
 729
 730                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 731                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 732                         M_MOV(d, REG_LSL(s1, iptr->sx.val.i));
 733                         emit_store_dst(jd, iptr, d);
 734                         break;
 735
 736                 case ICMD_IDIVPOW2:   /* ..., value  ==> ..., value / (2 ^ constant)  */
 737                                       /* sx.val.i = constant                          */
 738
 739                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 740                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 741                         /* this rounds towards 0 as java likes it */
 742                         M_MOV(REG_ITMP3, REG_ASR(s1, 31));
 743                         M_ADD(REG_ITMP3, s1, REG_LSR(REG_ITMP3, 32 - iptr->sx.val.i));
 744                         M_MOV(d, REG_ASR(REG_ITMP3, iptr->sx.val.i));
 745                         /* this rounds towards nearest, not java style */
 746                         /*M_MOV_S(d, REG_ASR(s1, iptr->sx.val.i));
 747                         M_ADCMI_IMM(d, d, 0);*/
 748                         emit_store_dst(jd, iptr, d);
 749                         break;
 750
 751                 case ICMD_IREMPOW2:   /* ..., value  ==> ..., value % constant        */
 752                                       /* sx.val.i = constant [ (2 ^ x) - 1 ]          */
 753
 754                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 755                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 756                         M_MOV_S(REG_ITMP1, s1);
 757                         M_RSBMI_IMM(REG_ITMP1, REG_ITMP1, 0);
 758                         if (IS_IMM(iptr->sx.val.i))
 759                                 M_AND_IMM(REG_ITMP1, iptr->sx.val.i, d);
 760                         else {
 761                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 762                                 M_AND(REG_ITMP1, REG_ITMP3, d);
 763                         }
 764                         M_RSBMI_IMM(d, d, 0);
 765                         emit_store_dst(jd, iptr, d);
 766                         break;
 767
 768                 case ICMD_ISHL:       /* ..., val1, val2  ==> ..., val1 << val2       */
 769
 770                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 771                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 772                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 773                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 774                         M_MOV(d, REG_LSL_REG(s1, REG_ITMP2));
 775                         emit_store_dst(jd, iptr, d);
 776                         break;
 777
 778                 case ICMD_ISHR:       /* ..., val1, val2  ==> ..., val1 >> val2       */
 779
 780                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 781                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 782                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 783                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 784                         M_MOV(d, REG_ASR_REG(s1, REG_ITMP2));
 785                         emit_store_dst(jd, iptr, d);
 786                         break;
 787
 788                 case ICMD_IUSHR:      /* ..., val1, val2  ==> ..., val1 >>> val2      */
 789
 790                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 791                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 792                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 793                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 794                         M_MOV(d, REG_LSR_REG(s1, REG_ITMP2));
 795                         emit_store_dst(jd, iptr, d);
 796                         break;
 797
 798                 case ICMD_ISHLCONST:  /* ..., value  ==> ..., value << constant       */
 799                                       /* sx.val.i = constant                          */
 800
 801                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 802                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 803                         M_MOV(d, REG_LSL(s1, iptr->sx.val.i & 0x1f));
 804                         emit_store_dst(jd, iptr, d);
 805                         break;
 806
 807                 case ICMD_ISHRCONST:  /* ..., value  ==> ..., value >> constant       */
 808                                       /* sx.val.i = constant                          */
 809
 810                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 811                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 812                         /* we need to check for zero here because arm interprets it as SHR by 32 */
 813                         if ((iptr->sx.val.i & 0x1f) == 0) {
 814                                 M_INTMOVE(s1, d);
 815                         } else {
 816                                 M_MOV(d, REG_ASR(s1, iptr->sx.val.i & 0x1f));
 817                         }
 818                         emit_store_dst(jd, iptr, d);
 819                         break;
 820
 821                 case ICMD_IUSHRCONST: /* ..., value  ==> ..., value >>> constant      */
 822                                       /* sx.val.i = constant                          */
 823
 824                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 825                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 826                         /* we need to check for zero here because arm interprets it as SHR by 32 */
 827                         if ((iptr->sx.val.i & 0x1f) == 0)
 828                                 M_INTMOVE(s1, d);
 829                         else
 830                                 M_MOV(d, REG_LSR(s1, iptr->sx.val.i & 0x1f));
 831                         emit_store_dst(jd, iptr, d);
 832                         break;
 833
 834                 case ICMD_IAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 835
 836                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 837                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 838                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 839                         M_AND(s1, s2, d);
 840                         emit_store_dst(jd, iptr, d);
 841                         break;
 842
 843                 case ICMD_LAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 844
 845                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 846                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 847                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 848                         M_AND(s1, s2, GET_LOW_REG(d));
 849                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 850                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 851                         M_AND(s1, s2, GET_HIGH_REG(d));
 852                         emit_store_dst(jd, iptr, d);
 853                         break;
 854
 855                 case ICMD_IOR:        /* ..., val1, val2  ==> ..., val1 | val2        */
 856
 857                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 858                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 859                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 860                         M_ORR(s1, s2, d);
 861                         emit_store_dst(jd, iptr, d);
 862                         break;
 863
 864                 case ICMD_LOR:       /* ..., val1, val2  ==> ..., val1 | val2        */
 865
 866                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 867                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 868                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 869                         M_ORR(s1, s2, GET_LOW_REG(d));
 870                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 871                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 872                         M_ORR(s1, s2, GET_HIGH_REG(d));
 873                         emit_store_dst(jd, iptr, d);
 874                         break;
 875
 876                 case ICMD_IXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
 877
 878                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 879                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 880                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 881                         M_EOR(s1, s2, d);
 882                         emit_store_dst(jd, iptr, d);
 883                         break;
 884
 885                 case ICMD_LXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
 886
 887                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 888                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 889                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 890                         M_EOR(s1, s2, GET_LOW_REG(d));
 891                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 892                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 893                         M_EOR(s1, s2, GET_HIGH_REG(d));
 894                         emit_store_dst(jd, iptr, d);
 895                         break;
 896
 897
 898         /* floating operations ************************************************/
 899
 900 #if !defined(ENABLE_SOFTFLOAT)
 901
 902                 case ICMD_FNEG:       /* ..., value  ==> ..., - value                 */
 903
 904                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 905                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 906                         M_FNEG(s1, d);
 907                         emit_store_dst(jd, iptr, d);
 908                         break;
 909
 910                 case ICMD_FADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 911
 912                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 913                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 914                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 915                         M_FADD(s1, s2, d);
 916                         emit_store_dst(jd, iptr, d);
 917                         break;
 918
 919                 case ICMD_FSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 920
 921                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 922                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 923                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 924                         M_FSUB(s1, s2, d);
 925                         emit_store_dst(jd, iptr, d);
 926                         break;
 927
 928                 case ICMD_FMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 929
 930                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 931                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 932                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 933                         M_FMUL(s1, s2, d);
 934                         emit_store_dst(jd, iptr, d);
 935                         break;
 936
 937                 case ICMD_FDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 938                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 939                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 940                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 941                         M_FDIV(s1, s2, d);
 942                         emit_store_dst(jd, iptr, d);
 943                         break;
 944
 945                 /* ATTENTION: Jave does not want IEEE behaviour in FREM, do
 946                    not use this */
 947
 948 #if 0
 949                 case ICMD_FREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 950
 951                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 952                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 953                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 954                         M_RMFS(d, s1, s2);
 955                         emit_store_dst(jd, iptr, d);
 956                         break;
 957 #endif
 958
 959                 case ICMD_DNEG:       /* ..., value  ==> ..., - value                 */
 960
 961                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 962                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 963                         M_DNEG(s1, d);
 964                         emit_store_dst(jd, iptr, d);
 965                         break;
 966
 967                 case ICMD_DADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 968
 969                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 970                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 971                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 972                         M_DADD(s1, s2, d);
 973                         emit_store_dst(jd, iptr, d);
 974                         break;
 975
 976                 case ICMD_DSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 977
 978                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 979                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 980                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 981                         M_DSUB(s1, s2, d);
 982                         emit_store_dst(jd, iptr, d);
 983                         break;
 984
 985                 case ICMD_DMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 986
 987                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 988                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 989                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 990                         M_DMUL(s1, s2, d);
 991                         emit_store_dst(jd, iptr, d);
 992                         break;
 993
 994                 case ICMD_DDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 995
 996                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 997                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 998                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 999                         M_DDIV(s1, s2, d);
1000                         emit_store_dst(jd, iptr, d);
1001                         break;
1002
1003                 /* ATTENTION: Jave does not want IEEE behaviour in DREM, do
1004                    not use this */
1005
1006 #if 0
1007                 case ICMD_DREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
1008
1009                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1010                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1011                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1012                         M_RMFD(d, s1, s2);
1013                         emit_store_dst(jd, iptr, d);
1014                         break;
1015 #endif
1016
1017                 case ICMD_I2F:       /* ..., value  ==> ..., (float) value            */
1018
1019                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1020                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1021                         M_CVTIF(s1, d);
1022                         emit_store_dst(jd, iptr, d);
1023                         break;
1024
1025                 case ICMD_I2D:       /* ..., value  ==> ..., (double) value           */
1026
1027                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1028                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1029                         M_CVTID(s1, d);
1030                         emit_store_dst(jd, iptr, d);
1031                         break;
1032
1033                 case ICMD_F2I:       /* ..., value  ==> ..., (int) value              */
1034
1035                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1036                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1037                         /* this uses round towards zero, as Java likes it */
1038                         M_CVTFI(s1, d);
1039 #if !defined(__VFP_FP__)
1040                         /* this checks for NaN; to return zero as Java likes it */
1041                         M_FCMP(s1, 0x8);
1042                         M_MOVVS_IMM(0, d);
1043 #endif
1044                         emit_store_dst(jd, iptr, d);
1045                         break;
1046
1047                 case ICMD_D2I:       /* ..., value  ==> ..., (int) value              */
1048
1049                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1050                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1051                         /* this uses round towards zero, as Java likes it */
1052                         M_CVTDI(s1, d);
1053 #if !defined(__VFP_FP__)
1054                         /* this checks for NaN; to return zero as Java likes it */
1055                         M_DCMP(s1, 0x8);
1056                         M_MOVVS_IMM(0, d);
1057 #endif
1058                         emit_store_dst(jd, iptr, d);
1059                         break;
1060
1061                 case ICMD_D2F:       /* ..., value  ==> ..., (float) value            */
1062
1063                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1064                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1065                         M_CVTDF(s1, d);
1066                         emit_store_dst(jd, iptr, d);
1067                         break;
1068
1069                 case ICMD_F2D:       /* ..., value  ==> ..., (double) value           */
1070
1071                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1072                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1073                         M_CVTFD(s1, d);
1074                         emit_store_dst(jd, iptr, d);
1075                         break;
1076
1077                 case ICMD_FCMPG:      /* ..., val1, val2  ==> ..., val1 fcmpg val2    */
1078
1079                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1080                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1081                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1082                         M_FCMP(s2, s1);
1083                         M_MOV_IMM(d, 0);
1084 #if defined(__VFP_FP__)
1085                         M_FMSTAT; /* on VFP we need to transfer the flags */
1086 #endif
1087                         M_SUBGT_IMM(d, d, 1);
1088                         M_ADDLT_IMM(d, d, 1);
1089                         emit_store_dst(jd, iptr, d);
1090                         break;
1091
1092                 case ICMD_DCMPG:      /* ..., val1, val2  ==> ..., val1 dcmpg val2    */
1093
1094                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1095                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1096                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1097                         M_DCMP(s2, s1);
1098                         M_MOV_IMM(d, 0);
1099 #if defined(__VFP_FP__)
1100                         M_FMSTAT; /* on VFP we need to transfer the flags */
1101 #endif
1102                         M_SUBGT_IMM(d, d, 1);
1103                         M_ADDLT_IMM(d, d, 1);
1104                         emit_store_dst(jd, iptr, d);
1105                         break;
1106
1107                 case ICMD_FCMPL:      /* ..., val1, val2  ==> ..., val1 fcmpl val2    */
1108
1109                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1110                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1111                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1112                         M_FCMP(s1, s2);
1113                         M_MOV_IMM(d, 0);
1114 #if defined(__VFP_FP__)
1115                         M_FMSTAT; /* on VFP we need to transfer the flags */
1116 #endif
1117                         M_SUBLT_IMM(d, d, 1);
1118                         M_ADDGT_IMM(d, d, 1);
1119                         emit_store_dst(jd, iptr, d);
1120                         break;
1121
1122                 case ICMD_DCMPL:      /* ..., val1, val2  ==> ..., val1 dcmpl val2    */
1123
1124                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1125                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1126                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1127                         M_DCMP(s1, s2);
1128                         M_MOV_IMM(d, 0);
1129 #if defined(__VFP_FP__)
1130                         M_FMSTAT; /* on VFP we need to transfer the flags */
1131 #endif
1132                         M_SUBLT_IMM(d, d, 1);
1133                         M_ADDGT_IMM(d, d, 1);
1134                         emit_store_dst(jd, iptr, d);
1135                         break;
1136
1137 #endif /* !defined(ENABLE_SOFTFLOAT) */
1138
1139
1140                 /* memory operations **************************************************/
1141
1142                 case ICMD_ARRAYLENGTH: /* ..., arrayref  ==> ..., length              */
1143
1144                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1145                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1146                         /* implicit null-pointer check */
1147                         M_ILD_INTERN(d, s1, OFFSET(java_array_t, size));
1148                         emit_store_dst(jd, iptr, d);
1149                         break;
1150
1151                 case ICMD_BALOAD:     /* ..., arrayref, index  ==> ..., value         */
1152
1153                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1154                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1155                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1156                         /* implicit null-pointer check */
1157                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1158                         M_ADD(REG_ITMP1, s1, s2); /* REG_ITMP1 = s1 + 1 * s2 */
1159                         M_LDRSB(d, REG_ITMP1, OFFSET(java_bytearray_t, data[0]));
1160                         emit_store_dst(jd, iptr, d);
1161                         break;
1162
1163                 case ICMD_CALOAD:     /* ..., arrayref, index  ==> ..., value         */
1164
1165                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1166                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1167                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1168                         /* implicit null-pointer check */
1169                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1170                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1171                         M_LDRH(d, REG_ITMP1, OFFSET(java_chararray_t, data[0]));
1172                         emit_store_dst(jd, iptr, d);
1173                         break;
1174
1175                 case ICMD_SALOAD:     /* ..., arrayref, index  ==> ..., value         */
1176
1177                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1178                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1179                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1180                         /* implicit null-pointer check */
1181                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1182                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1183                         M_LDRSH(d, REG_ITMP1, OFFSET(java_shortarray_t, data[0]));
1184                         emit_store_dst(jd, iptr, d);
1185                         break;
1186
1187                 case ICMD_IALOAD:     /* ..., arrayref, index  ==> ..., value         */
1188
1189                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1190                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1191                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1192                         /* implicit null-pointer check */
1193                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1194                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1195                         M_ILD_INTERN(d, REG_ITMP1, OFFSET(java_intarray_t, data[0]));
1196                         emit_store_dst(jd, iptr, d);
1197                         break;
1198
1199                 case ICMD_LALOAD:     /* ..., arrayref, index  ==> ..., value         */
1200
1201                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1202                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1203                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1204                         /* implicit null-pointer check */
1205                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1206                         M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1207                         M_LLD_INTERN(d, REG_ITMP3, OFFSET(java_longarray_t, data[0]));
1208                         emit_store_dst(jd, iptr, d);
1209                         break;
1210
1211                 case ICMD_FALOAD:     /* ..., arrayref, index  ==> ..., value         */
1212
1213                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1214                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1215                         /* implicit null-pointer check */
1216                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1217                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1218 #if !defined(ENABLE_SOFTFLOAT)
1219                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1220                         M_FLD_INTERN(d, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1221 #else
1222                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1223                         M_ILD_INTERN(d, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1224 #endif
1225                         emit_store_dst(jd, iptr, d);
1226                         break;
1227
1228                 case ICMD_DALOAD:     /* ..., arrayref, index  ==> ..., value         */
1229
1230                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1231                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1232                         /* implicit null-pointer check */
1233                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1234                         M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1235 #if !defined(ENABLE_SOFTFLOAT)
1236                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1237                         M_DLD_INTERN(d, REG_ITMP3, OFFSET(java_doublearray_t, data[0]));
1238 #else
1239                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1240                         M_LLD_INTERN(d, REG_ITMP3, OFFSET(java_doublearray_t, data[0]));
1241 #endif
1242                         emit_store_dst(jd, iptr, d);
1243                         break;
1244
1245                 case ICMD_AALOAD:     /* ..., arrayref, index  ==> ..., value         */
1246
1247                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1248                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1249                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1250                         /* implicit null-pointer check */
1251                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1252                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1253                         M_LDR_INTERN(d, REG_ITMP1, OFFSET(java_objectarray_t, data[0]));
1254                         emit_store_dst(jd, iptr, d);
1255                         break;
1256
1257                 case ICMD_BASTORE:    /* ..., arrayref, index, value  ==> ...         */
1258
1259                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1260                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1261                         /* implicit null-pointer check */
1262                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1263                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1264                         M_ADD(REG_ITMP1, s1, s2); /* REG_ITMP1 = s1 + 1 * s2 */
1265                         M_STRB(s3, REG_ITMP1, OFFSET(java_bytearray_t, data[0]));
1266                         break;
1267
1268                 case ICMD_CASTORE:    /* ..., arrayref, index, value  ==> ...         */
1269
1270                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1271                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1272                         /* implicit null-pointer check */
1273                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1274                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1275                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1276                         M_STRH(s3, REG_ITMP1, OFFSET(java_chararray_t, data[0]));
1277                         break;
1278
1279                 case ICMD_SASTORE:    /* ..., arrayref, index, value  ==> ...         */
1280
1281                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1282                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1283                         /* implicit null-pointer check */
1284                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1285                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1286                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1287                         M_STRH(s3, REG_ITMP1, OFFSET(java_shortarray_t, data[0]));
1288                         break;
1289
1290                 case ICMD_IASTORE:    /* ..., arrayref, index, value  ==> ...         */
1291
1292                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1293                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1294                         /* implicit null-pointer check */
1295                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1296                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1297                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1298                         M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_intarray_t, data[0]));
1299                         break;
1300
1301                 case ICMD_LASTORE:    /* ..., arrayref, index, value  ==> ...         */
1302
1303                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1304                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1305                         /* implicit null-pointer check */
1306                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1307                         M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1308                         s3 = emit_load_s3(jd, iptr, REG_ITMP12_PACKED);
1309                         M_LST_INTERN(s3, REG_ITMP3, OFFSET(java_longarray_t, data[0]));
1310                         break;
1311
1312                 case ICMD_FASTORE:    /* ..., arrayref, index, value  ==> ...         */
1313
1314                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1315                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1316                         /* implicit null-pointer check */
1317                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1318                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1319 #if !defined(ENABLE_SOFTFLOAT)
1320                         s3 = emit_load_s3(jd, iptr, REG_FTMP1);
1321                         M_FST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1322 #else
1323                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1324                         M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1325 #endif
1326                         break;
1327
1328                 case ICMD_DASTORE:    /* ..., arrayref, index, value  ==> ...         */
1329
1330                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1331                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1332                         /* implicit null-pointer check */
1333                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1334                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 3)); /* REG_ITMP1 = s1 + 8 * s2 */
1335 #if !defined(ENABLE_SOFTFLOAT)
1336                         s3 = emit_load_s3(jd, iptr, REG_FTMP1);
1337                         M_DST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray_t, data[0]));
1338 #else
1339                         s3 = emit_load_s3(jd, iptr, REG_ITMP23_PACKED);
1340                         M_LST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray_t, data[0]));
1341 #endif
1342                         break;
1343
1344                 case ICMD_AASTORE:    /* ..., arrayref, index, value  ==> ...         */
1345
1346                         s1 = emit_load_s1(jd, iptr, REG_A0);
1347                         s2 = emit_load_s2(jd, iptr, REG_ITMP1);
1348                         s3 = emit_load_s3(jd, iptr, REG_A1);
1349
1350                         /* implicit null-pointer check */
1351                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1352
1353                         /* move arguments to argument registers */
1354                         M_INTMOVE(s1, REG_A0);
1355                         M_INTMOVE(s3, REG_A1);
1356
1357                         /* call builtin function */
1358                         disp = dseg_add_functionptr(cd, BUILTIN_FAST_canstore);
1359                         M_DSEG_BRANCH(disp);
1360
1361                         /* recompute pv */
1362                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
1363                         M_RECOMPUTE_PV(s1);
1364
1365                         /* check resturn value of builtin */
1366                         emit_arraystore_check(cd, iptr);
1367
1368                         /* finally store address into array */
1369                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1370                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1371                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1372                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1373                         M_STR_INTERN(s3, REG_ITMP1, OFFSET(java_objectarray_t, data[0]));
1374                         break;
1375
1376                 case ICMD_GETSTATIC:  /* ...  ==> ..., value                          */
1377
1378                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1379                                 uf        = iptr->sx.s23.s3.uf;
1380                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1381                                 disp      = dseg_add_unique_address(cd, NULL);
1382
1383                                 patcher_add_patch_ref(jd, PATCHER_get_putstatic, uf, disp);
1384                         }
1385                         else {
1386                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1387                                 fieldtype = fi->type;
1388                                 disp      = dseg_add_address(cd, fi->value);
1389
1390                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1391                                         patcher_add_patch_ref(jd, PATCHER_initialize_class,
1392                                                             fi->class, 0);
1393                                 }
1394                         }
1395
1396                         M_DSEG_LOAD(REG_ITMP3, disp);
1397                         switch (fieldtype) {
1398                         case TYPE_INT:
1399 #if defined(ENABLE_SOFTFLOAT)
1400                         case TYPE_FLT:
1401 #endif
1402                         case TYPE_ADR:
1403                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1404                                 M_ILD_INTERN(d, REG_ITMP3, 0);
1405                                 break;
1406                         case TYPE_LNG:
1407 #if defined(ENABLE_SOFTFLOAT)
1408                         case TYPE_DBL:
1409 #endif
1410                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1411                                 M_LLD_INTERN(d, REG_ITMP3, 0);
1412                                 break;
1413 #if !defined(ENABLE_SOFTFLOAT)
1414                         case TYPE_FLT:
1415                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1416                                 M_FLD_INTERN(d, REG_ITMP3, 0);
1417                                 break;
1418                         case TYPE_DBL:
1419                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1420                                 M_DLD_INTERN(d, REG_ITMP3, 0);
1421                                 break;
1422 #endif
1423                         default:
1424                                 assert(0);
1425                         }
1426                         emit_store_dst(jd, iptr, d);
1427                         break;
1428
1429                 case ICMD_PUTSTATIC:  /* ..., value  ==> ...                          */
1430
1431                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1432                                 uf        = iptr->sx.s23.s3.uf;
1433                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1434                                 disp      = dseg_add_unique_address(cd, NULL);
1435
1436                                 patcher_add_patch_ref(jd, PATCHER_get_putstatic, uf, disp);
1437                         }
1438                         else {
1439                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1440                                 fieldtype = fi->type;
1441                                 disp      = dseg_add_address(cd, fi->value);
1442
1443                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1444                                         patcher_add_patch_ref(jd, PATCHER_initialize_class,
1445                                                             fi->class, 0);
1446                                 }
1447                         }
1448
1449                         M_DSEG_LOAD(REG_ITMP3, disp);
1450                         switch (fieldtype) {
1451                         case TYPE_INT:
1452 #if defined(ENABLE_SOFTFLOAT)
1453                         case TYPE_FLT:
1454 #endif
1455                         case TYPE_ADR:
1456                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1457                                 M_IST_INTERN(s1, REG_ITMP3, 0);
1458                                 break;
1459                         case TYPE_LNG:
1460 #if defined(ENABLE_SOFTFLOAT)
1461                         case TYPE_DBL:
1462 #endif
1463                                 s1 = emit_load_s1(jd, iptr, REG_ITMP12_PACKED);
1464                                 M_LST_INTERN(s1, REG_ITMP3, 0);
1465                                 break;
1466 #if !defined(ENABLE_SOFTFLOAT)
1467                         case TYPE_FLT:
1468                                 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1469                                 M_FST_INTERN(s1, REG_ITMP3, 0);
1470                                 break;
1471                         case TYPE_DBL:
1472                                 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1473                                 M_DST_INTERN(s1, REG_ITMP3, 0);
1474                                 break;
1475 #endif
1476                         default:
1477                                 assert(0);
1478                         }
1479                         break;
1480
1481                 case ICMD_GETFIELD:   /* ..., objectref, value  ==> ...               */
1482
1483                         s1 = emit_load_s1(jd, iptr, REG_ITMP3);
1484                         emit_nullpointer_check(cd, iptr, s1);
1485
1486
1487                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1488                                 uf        = iptr->sx.s23.s3.uf;
1489                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1490                                 disp      = 0;
1491                         }
1492                         else {
1493                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1494                                 fieldtype = fi->type;
1495                                 disp      = fi->offset;
1496                         }
1497
1498 #if !defined(ENABLE_SOFTFLOAT)
1499                         /* HACK: softnull checks on floats */
1500                         if (!INSTRUCTION_MUST_CHECK(iptr) && IS_FLT_DBL_TYPE(fieldtype))
1501                                 emit_nullpointer_check_force(cd, iptr, s1);
1502 #endif
1503
1504                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1505                                 /* XXX REMOVE ME */
1506                                 uf = iptr->sx.s23.s3.uf;
1507
1508                                 patcher_add_patch_ref(jd, PATCHER_get_putfield, uf, 0);
1509                         }
1510
1511                         switch (fieldtype) {
1512                         case TYPE_INT:
1513 #if defined(ENABLE_SOFTFLOAT)
1514                         case TYPE_FLT:
1515 #endif
1516                         case TYPE_ADR:
1517                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1518                                 M_ILD(d, s1, disp);
1519                                 break;
1520                         case TYPE_LNG:
1521 #if defined(ENABLE_SOFTFLOAT)
1522                         case TYPE_DBL:
1523 #endif
1524                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1525                                 M_LLD(d, s1, disp);
1526                                 break;
1527 #if !defined(ENABLE_SOFTFLOAT)
1528                         case TYPE_FLT:
1529                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1530                                 M_FLD(d, s1, disp);
1531                                 break;
1532                         case TYPE_DBL:
1533                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1534                                 M_DLD(d, s1, disp);
1535                                 break;
1536 #endif
1537                         default:
1538                                 assert(0);
1539                         }
1540                         emit_store_dst(jd, iptr, d);
1541                         break;
1542
1543                 case ICMD_PUTFIELD:   /* ..., objectref, value  ==> ...               */
1544
1545                         s1 = emit_load_s1(jd, iptr, REG_ITMP3);
1546                         emit_nullpointer_check(cd, iptr, s1);
1547
1548                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1549                                 uf        = iptr->sx.s23.s3.uf;
1550                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1551                                 disp      = 0;
1552                         }
1553                         else {
1554                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1555                                 fieldtype = fi->type;
1556                                 disp      = fi->offset;
1557                         }
1558
1559 #if !defined(ENABLE_SOFTFLOAT)
1560                         /* HACK: softnull checks on floats */
1561                         if (!INSTRUCTION_MUST_CHECK(iptr) && IS_FLT_DBL_TYPE(fieldtype))
1562                                 emit_nullpointer_check_force(cd, iptr, s1);
1563 #endif
1564
1565                         switch (fieldtype) {
1566                         case TYPE_INT:
1567 #if defined(ENABLE_SOFTFLOAT)
1568                         case TYPE_FLT:
1569 #endif
1570                         case TYPE_ADR:
1571                                 s2 = emit_load_s2(jd, iptr, REG_ITMP1);
1572                                 break;
1573 #if defined(ENABLE_SOFTFLOAT)
1574                         case TYPE_DBL: /* fall through */
1575 #endif
1576                         case TYPE_LNG:
1577                                 s2 = emit_load_s2(jd, iptr, REG_ITMP12_PACKED);
1578                                 break;
1579 #if !defined(ENABLE_SOFTFLOAT)
1580                         case TYPE_FLT:
1581                         case TYPE_DBL:
1582                                 s2 = emit_load_s2(jd, iptr, REG_FTMP1);
1583                                 break;
1584 #endif
1585                         default:
1586                                 assert(0);
1587                         }
1588
1589                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1590                                 /* XXX REMOVE ME */
1591                                 uf = iptr->sx.s23.s3.uf;
1592
1593                                 patcher_add_patch_ref(jd, PATCHER_get_putfield, uf, 0);
1594                         }
1595
1596                         switch (fieldtype) {
1597                         case TYPE_INT:
1598 #if defined(ENABLE_SOFTFLOAT)
1599                         case TYPE_FLT:
1600 #endif
1601                         case TYPE_ADR:
1602                                 M_IST(s2, s1, disp);
1603                                 break;
1604                         case TYPE_LNG:
1605 #if defined(ENABLE_SOFTFLOAT)
1606                         case TYPE_DBL:
1607 #endif
1608                                 M_LST(s2, s1, disp);
1609                                 break;
1610 #if !defined(ENABLE_SOFTFLOAT)
1611                         case TYPE_FLT:
1612                                 M_FST(s2, s1, disp);
1613                                 break;
1614                         case TYPE_DBL:
1615                                 M_DST(s2, s1, disp);
1616                                 break;
1617 #endif
1618                         default:
1619                                 assert(0);
1620                         }
1621                         break;
1622
1623
1624                 /* branch operations **************************************************/
1625
1626                 case ICMD_ATHROW:       /* ..., objectref ==> ... (, objectref)       */
1627
1628                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1629                         M_INTMOVE(s1, REG_ITMP1_XPTR);
1630                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1631                                 patcher_add_patch_ref(jd, PATCHER_resolve_class,
1632                                                                         iptr->sx.s23.s2.uc, 0);
1633                         }
1634                         disp = dseg_add_functionptr(cd, asm_handle_exception);
1635                         M_DSEG_LOAD(REG_ITMP3, disp);
1636                         M_MOV(REG_ITMP2_XPC, REG_PC);
1637                         M_MOV(REG_PC, REG_ITMP3);
1638                         M_NOP;              /* nop ensures that XPC is less than the end  */
1639                                             /* of basic block                             */
1640                         break;
1641
1642                 case ICMD_GOTO:         /* ... ==> ...                                */
1643                 case ICMD_RET:
1644
1645                         emit_br(cd, iptr->dst.block);
1646                         break;
1647
1648                 case ICMD_JSR:          /* ... ==> ...                                */
1649
1650                         emit_br(cd, iptr->sx.s23.s3.jsrtarget.block);
1651                         break;
1652
1653                 case ICMD_IFNULL:       /* ..., value ==> ...                         */
1654                 case ICMD_IFNONNULL:
1655
1656                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1657                         M_TEQ_IMM(s1, 0);
1658                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFNULL, BRANCH_OPT_NONE);
1659                         break;
1660
1661                 case ICMD_IFLT:         /* ..., value ==> ...                         */
1662                 case ICMD_IFLE:         /* op1 = target JavaVM pc, val.i = constant   */
1663                 case ICMD_IFGT:
1664                 case ICMD_IFGE:
1665                 case ICMD_IFEQ:
1666                 case ICMD_IFNE:
1667
1668                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1669                         M_COMPARE(s1, iptr->sx.val.i);
1670                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFEQ, BRANCH_OPT_NONE);
1671                         break;
1672
1673                 case ICMD_IF_LEQ:       /* ..., value ==> ...                         */
1674
1675                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1676                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1677                         if (iptr->sx.val.l == 0) {
1678                                 M_ORR_S(s1, s2, REG_ITMP3);
1679                         }
1680                         else {
1681                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1682                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1683                                 M_CMP(s1, REG_ITMP3);*/
1684                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1685                                 M_CMPEQ(s2, REG_ITMP3);
1686                         }
1687                         emit_beq(cd, iptr->dst.block);
1688                         break;
1689
1690                 case ICMD_IF_LLT:       /* ..., value ==> ...                         */
1691
1692                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1693                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1694                         if (iptr->sx.val.l == 0) {
1695                                 /* if high word is less than zero, the whole long is too */
1696                                 M_CMP_IMM(s1, 0);
1697                                 emit_blt(cd, iptr->dst.block);
1698                         }
1699                         else {
1700                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1701                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1702                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1703                                 M_CMP(s1, REG_ITMP3);*/
1704                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1705                                 M_MOVGT_IMM(2, REG_ITMP1);
1706                                 M_MOVEQ_IMM(1, REG_ITMP1);
1707
1708                                 /* low compare: x=x-1(ifLO) */
1709                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1710                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1711                                 M_CMP(s2, REG_ITMP3);*/
1712                                 M_SUBLO_IMM(REG_ITMP1, REG_ITMP1, 1);
1713
1714                                 /* branch if (x LT 1) */
1715                                 M_CMP_IMM(REG_ITMP1, 1);
1716                                 emit_blt(cd, iptr->dst.block);
1717                         }
1718                         break;
1719
1720                 case ICMD_IF_LLE:       /* ..., value ==> ...                         */
1721
1722                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1723                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1724                         if (iptr->sx.val.l == 0) {
1725                                 /* if high word is less than zero, the whole long is too  */
1726                                 M_CMP_IMM(s1, 0);
1727                                 emit_blt(cd, iptr->dst.block);
1728
1729                                 /* ... otherwise the low word has to be zero (tricky!) */
1730                                 M_CMPEQ_IMM(s2, 0);
1731                                 emit_beq(cd, iptr->dst.block);
1732                         }
1733                         else {
1734                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1735                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1736                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1737                                 M_CMP(s1, REG_ITMP3);*/
1738                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1739                                 M_MOVGT_IMM(2, REG_ITMP1);
1740                                 M_MOVEQ_IMM(1, REG_ITMP1);
1741
1742                                 /* low compare: x=x+1(ifHI) */
1743                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1744                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1745                                 M_CMP(s2, REG_ITMP3);*/
1746                                 M_ADDHI_IMM(REG_ITMP1, REG_ITMP1, 1);
1747
1748                                 /* branch if (x LE 1) */
1749                                 M_CMP_IMM(REG_ITMP1, 1);
1750                                 emit_ble(cd, iptr->dst.block);
1751                         }
1752                         break;
1753
1754                 case ICMD_IF_LGE:       /* ..., value ==> ...                         */
1755
1756                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1757                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1758                         if (iptr->sx.val.l == 0) {
1759                                 /* if high word is greater or equal zero, the whole long is too */
1760                                 M_CMP_IMM(s1, 0);
1761                                 emit_bge(cd, iptr->dst.block);
1762                         }
1763                         else {
1764                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1765                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1766                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1767                                 M_CMP(s1, REG_ITMP3);*/
1768                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1769                                 M_MOVGT_IMM(2, REG_ITMP1);
1770                                 M_MOVEQ_IMM(1, REG_ITMP1);
1771
1772                                 /* low compare: x=x-1(ifLO) */
1773                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1774                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1775                                 M_CMP(s2, REG_ITMP3);*/
1776                                 M_SUBLO_IMM(REG_ITMP1, REG_ITMP1, 1);
1777
1778                                 /* branch if (x GE 1) */
1779                                 M_CMP_IMM(REG_ITMP1, 1);
1780                                 emit_bge(cd, iptr->dst.block);
1781                         }
1782                         break;
1783
1784                 case ICMD_IF_LGT:       /* ..., value ==> ...                         */
1785
1786                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1787                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1788 #if 0
1789                         if (iptr->sx.val.l == 0) {
1790                                 /* if high word is greater than zero, the whole long is too */
1791                                 M_CMP_IMM(s1, 0);
1792                                 M_BGT(0);
1793                                 codegen_add_branch_ref(cd, iptr->dst.block);
1794
1795                                 /* ... or high was zero and low is non zero (tricky!) */
1796                                 M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1797                                 M_MOVLT_IMM(1, REG_ITMP3);
1798                                 M_ORR_S(REG_ITMP3, s2, REG_ITMP3);
1799                                 M_BNE(0);
1800                                 codegen_add_branch_ref(cd, iptr->dst.block);
1801                         }
1802                         else {
1803 #endif
1804                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1805                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1806                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1807                                 M_CMP(s1, REG_ITMP3);*/
1808                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1809                                 M_MOVGT_IMM(2, REG_ITMP1);
1810                                 M_MOVEQ_IMM(1, REG_ITMP1);
1811
1812                                 /* low compare: x=x+1(ifHI) */
1813                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1814                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1815                                 M_CMP(s2, REG_ITMP3);*/
1816                                 M_ADDHI_IMM(REG_ITMP1, REG_ITMP1, 1);
1817
1818                                 /* branch if (x GT 1) */
1819                                 M_CMP_IMM(REG_ITMP1, 1);
1820                                 emit_bgt(cd, iptr->dst.block);
1821 #if 0
1822                         }
1823 #endif
1824                         break;
1825
1826                 case ICMD_IF_LNE:       /* ..., value ==> ...                         */
1827
1828                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1829                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1830                         if (iptr->sx.val.l == 0) {
1831                                 M_ORR_S(s1, s2, REG_ITMP3);
1832                         }
1833                         else {
1834                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1835                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1836                                 M_CMP(s1, REG_ITMP3);*/
1837                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1838                                 M_CMPEQ(s2, REG_ITMP3);
1839                         }
1840                         emit_bne(cd, iptr->dst.block);
1841                         break;
1842
1843                 case ICMD_IF_ICMPEQ:    /* ..., value, value ==> ...                  */
1844                 case ICMD_IF_ICMPNE:
1845                 case ICMD_IF_ICMPLT:
1846                 case ICMD_IF_ICMPLE:
1847                 case ICMD_IF_ICMPGT:
1848                 case ICMD_IF_ICMPGE:
1849
1850                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1851                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1852                         M_CMP(s1, s2);
1853                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IF_ICMPEQ, BRANCH_OPT_NONE);
1854                         break;
1855
1856                 case ICMD_IF_ACMPEQ:    /* ..., value, value ==> ...                  */
1857                 case ICMD_IF_ACMPNE:
1858
1859                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1860                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1861                         M_CMP(s1, s2);
1862                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IF_ACMPEQ, BRANCH_OPT_NONE);
1863                         break;
1864
1865                 case ICMD_IF_LCMPEQ:    /* ..., value, value ==> ...                  */
1866                                         /* op1 = target JavaVM pc                     */
1867
1868                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1869                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1870                         M_CMP(s1, s2);
1871
1872                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1873                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1874                         M_CMPEQ(s1, s2);
1875
1876                         emit_beq(cd, iptr->dst.block);
1877                         break;
1878
1879                 case ICMD_IF_LCMPNE:    /* ..., value, value ==> ...                  */
1880                                         /* op1 = target JavaVM pc                     */
1881
1882                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1883                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1884                         M_CMP(s1, s2);
1885
1886                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1887                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1888                         M_CMPEQ(s1, s2);
1889
1890                         emit_bne(cd, iptr->dst.block);
1891                         break;
1892
1893                 case ICMD_IF_LCMPLT:    /* ..., value, value ==> ...                  */
1894                                         /* op1 = target JavaVM pc                     */
1895
1896                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1897                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1898                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1899                         M_CMP(s1, s2);
1900                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1901                         M_MOVGT_IMM(2, REG_ITMP3);
1902                         M_MOVEQ_IMM(1, REG_ITMP3);
1903
1904                         /* low compare: x=x-1(ifLO) */
1905                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1906                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1907                         M_CMP(s1, s2);
1908                         M_SUBLO_IMM(REG_ITMP3, REG_ITMP3, 1);
1909
1910                         /* branch if (x LT 1) */
1911                         M_CMP_IMM(REG_ITMP3, 1);
1912                         emit_blt(cd, iptr->dst.block);
1913                         break;
1914
1915                 case ICMD_IF_LCMPLE:    /* ..., value, value ==> ...                  */
1916                                         /* op1 = target JavaVM pc                     */
1917
1918                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1919                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1920                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1921                         M_CMP(s1, s2);
1922                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1923                         M_MOVGT_IMM(2, REG_ITMP3);
1924                         M_MOVEQ_IMM(1, REG_ITMP3);
1925
1926                         /* low compare: x=x-1(ifLO) */
1927                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1928                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1929                         M_CMP(s1, s2);
1930                         M_ADDHI_IMM(REG_ITMP3, REG_ITMP3, 1);
1931
1932                         /* branch if (x LE 1) */
1933                         M_CMP_IMM(REG_ITMP3, 1);
1934                         emit_ble(cd, iptr->dst.block);
1935                         break;
1936
1937                 case ICMD_IF_LCMPGT:    /* ..., value, value ==> ...                  */
1938                                         /* op1 = target JavaVM pc                     */
1939
1940                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1941                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1942                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1943                         M_CMP(s1, s2);
1944                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1945                         M_MOVGT_IMM(2, REG_ITMP3);
1946                         M_MOVEQ_IMM(1, REG_ITMP3);
1947
1948                         /* low compare: x=x-1(ifLO) */
1949                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1950                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1951                         M_CMP(s1, s2);
1952                         M_ADDHI_IMM(REG_ITMP3, REG_ITMP3, 1);
1953
1954                         /* branch if (x GT 1) */
1955                         M_CMP_IMM(REG_ITMP3, 1);
1956                         emit_bgt(cd, iptr->dst.block);
1957                         break;
1958
1959                 case ICMD_IF_LCMPGE:    /* ..., value, value ==> ...                  */
1960                                         /* op1 = target JavaVM pc                     */
1961
1962                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1963                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1964                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1965                         M_CMP(s1, s2);
1966                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1967                         M_MOVGT_IMM(2, REG_ITMP3);
1968                         M_MOVEQ_IMM(1, REG_ITMP3);
1969
1970                         /* low compare: x=x-1(ifLO) */
1971                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1972                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1973                         M_CMP(s1, s2);
1974                         M_SUBLO_IMM(REG_ITMP3, REG_ITMP3, 1);
1975
1976                         /* branch if (x GE 1) */
1977                         M_CMP_IMM(REG_ITMP3, 1);
1978                         emit_bge(cd, iptr->dst.block);
1979                         break;
1980
1981                 case ICMD_TABLESWITCH:  /* ..., index ==> ...                         */
1982                         {
1983                         s4 i, l;
1984                         branch_target_t *table;
1985
1986                         table = iptr->dst.table;
1987
1988                         l = iptr->sx.s23.s2.tablelow;
1989                         i = iptr->sx.s23.s3.tablehigh;
1990
1991                         /* calculate new index (index - low) */
1992                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1993                         if (l  == 0) {
1994                                 M_INTMOVE(s1, REG_ITMP1);
1995                         } else if (IS_IMM(l)) {
1996                                 M_SUB_IMM(REG_ITMP1, s1, l);
1997                         } else {
1998                                 ICONST(REG_ITMP2, l);
1999                                 M_SUB(REG_ITMP1, s1, REG_ITMP2);
2000                         }
2001
2002                         /* range check (index <= high-low) */
2003                         i = i - l + 1;
2004                         M_COMPARE(REG_ITMP1, i-1);
2005                         emit_bugt(cd, table[0].block);
2006
2007                         /* build jump table top down and use address of lowest entry */
2008
2009                         table += i;
2010
2011                         while (--i >= 0) {
2012                                 dseg_add_target(cd, table->block);
2013                                 --table;
2014                         }
2015                         }
2016
2017                         /* length of dataseg after last dseg_add_target is used by load */
2018                         /* TODO: this loads from data-segment */
2019                         M_ADD(REG_ITMP2, REG_PV, REG_LSL(REG_ITMP1, 2));
2020                         M_LDR(REG_PC, REG_ITMP2, -(cd->dseglen));
2021                         break;
2022
2023                 case ICMD_LOOKUPSWITCH: /* ..., key ==> ...                           */
2024                         {
2025                         s4 i;
2026                         lookup_target_t *lookup;
2027
2028                         lookup = iptr->dst.lookup;
2029
2030                         i = iptr->sx.s23.s2.lookupcount;
2031
2032                         /* compare keys */
2033                         MCODECHECK((i<<2)+8);
2034                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2035
2036                         while (--i >= 0) {
2037                                 M_COMPARE(s1, lookup->value);
2038                                 emit_beq(cd, lookup->target.block);
2039                                 lookup++;
2040                         }
2041
2042                         /* default branch */
2043                         emit_br(cd, iptr->sx.s23.s3.lookupdefault.block);
2044                         }
2045                         break;
2046
2047                 case ICMD_FRETURN:      /* ..., retvalue ==> ...                      */
2048
2049 #if !defined(ENABLE_SOFTFLOAT)
2050                         REPLACEMENT_POINT_RETURN(cd, iptr);
2051                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
2052                         M_CAST_F2I(s1, REG_RESULT);
2053                         goto ICMD_RETURN_do;
2054 #endif
2055
2056                 case ICMD_IRETURN:      /* ..., retvalue ==> ...                      */
2057
2058                         REPLACEMENT_POINT_RETURN(cd, iptr);
2059                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2060                         M_INTMOVE(s1, REG_RESULT);
2061                         goto ICMD_RETURN_do;
2062
2063                 case ICMD_DRETURN:      /* ..., retvalue ==> ...                      */
2064
2065 #if !defined(ENABLE_SOFTFLOAT)
2066                         REPLACEMENT_POINT_RETURN(cd, iptr);
2067                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
2068                         M_CAST_D2L(s1, REG_RESULT_PACKED);
2069                         goto ICMD_RETURN_do;
2070 #endif
2071
2072                 case ICMD_LRETURN:      /* ..., retvalue ==> ...                      */
2073
2074                         REPLACEMENT_POINT_RETURN(cd, iptr);
2075                         s1 = emit_load_s1(jd, iptr, REG_RESULT_PACKED);
2076                         M_LNGMOVE(s1, REG_RESULT_PACKED);
2077                         goto ICMD_RETURN_do;
2078
2079                 case ICMD_ARETURN:      /* ..., retvalue ==> ...                      */
2080
2081                         REPLACEMENT_POINT_RETURN(cd, iptr);
2082                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2083                         M_INTMOVE(s1, REG_RESULT);
2084                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2085                                 patcher_add_patch_ref(jd, PATCHER_resolve_class,
2086                                                                         iptr->sx.s23.s2.uc, 0);
2087                         }
2088                         goto ICMD_RETURN_do;
2089
2090                 case ICMD_RETURN:       /* ...  ==> ...                               */
2091
2092                         REPLACEMENT_POINT_RETURN(cd, iptr);
2093                         ICMD_RETURN_do:
2094
2095 #if !defined(NDEBUG)
2096                         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
2097                                 emit_verbosecall_exit(jd);
2098 #endif
2099
2100 #if defined(ENABLE_THREADS)
2101                         /* call monitorexit function */
2102
2103                         if (checksync && code_is_synchronized(code)) {
2104                                 /* stack offset for monitor argument */
2105
2106                                 s1 = rd->memuse * 8;
2107
2108                                 /* we need to save the proper return value */
2109
2110                                 switch (iptr->opc) {
2111                                 case ICMD_IRETURN:
2112                                 case ICMD_ARETURN:
2113                                 case ICMD_LRETURN:
2114                                 case ICMD_FRETURN: /* XXX TWISTI: is that correct? */
2115                                 case ICMD_DRETURN:
2116                                         M_STMFD(BITMASK_RESULT, REG_SP);
2117                                         s1 += 2 * 4;
2118                                         break;
2119                                 }
2120
2121                                 M_LDR(REG_A0, REG_SP, s1);
2122                                 disp = dseg_add_functionptr(cd, LOCK_monitor_exit);
2123                                 M_DSEG_BRANCH(disp);
2124
2125                                 /* we no longer need PV here, no more loading */
2126                                 /*s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2127                                 M_RECOMPUTE_PV(s1);*/
2128
2129                                 switch (iptr->opc) {
2130                                 case ICMD_IRETURN:
2131                                 case ICMD_ARETURN:
2132                                 case ICMD_LRETURN:
2133                                 case ICMD_FRETURN: /* XXX TWISTI: is that correct? */
2134                                 case ICMD_DRETURN:
2135                                         M_LDMFD(BITMASK_RESULT, REG_SP);
2136                                         break;
2137                                 }
2138                         }
2139 #endif
2140
2141                         /* deallocate stackframe for spilled variables */
2142
2143                         if ((cd->stackframesize / 4 - savedregs_num) > 0)
2144                                 M_ADD_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - savedregs_num);
2145
2146                         /* restore callee saved registers + do return */
2147
2148                         if (savedregs_bitmask) {
2149                                 if (!code_is_leafmethod(code)) {
2150                                         savedregs_bitmask &= ~(1<<REG_LR);
2151                                         savedregs_bitmask |= (1<<REG_PC);
2152                                 }
2153                                 M_LDMFD(savedregs_bitmask, REG_SP);
2154                         }
2155
2156                         /* if LR was not on stack, we need to return manually */
2157
2158                         if (code_is_leafmethod(code))
2159                                 M_MOV(REG_PC, REG_LR);
2160                         break;
2161
2162                 case ICMD_BUILTIN:      /* ..., arg1, arg2, arg3 ==> ...              */
2163
2164                         bte = iptr->sx.s23.s3.bte;
2165                         md  = bte->md;
2166                         goto ICMD_INVOKE_do;
2167
2168                 case ICMD_INVOKESTATIC: /* ..., [arg1, [arg2 ...]] ==> ...            */
2169                 case ICMD_INVOKESPECIAL:/* ..., objectref, [arg1, [arg2 ...]] ==> ... */
2170                 case ICMD_INVOKEVIRTUAL:/* op1 = arg count, val.a = method pointer    */
2171                 case ICMD_INVOKEINTERFACE:
2172
2173                         REPLACEMENT_POINT_INVOKE(cd, iptr);
2174
2175                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2176                                 lm = NULL;
2177                                 um = iptr->sx.s23.s3.um;
2178                                 md = um->methodref->parseddesc.md;
2179                         }
2180                         else {
2181                                 lm = iptr->sx.s23.s3.fmiref->p.method;
2182                                 um = NULL;
2183                                 md = lm->parseddesc;
2184                         }
2185
2186                 ICMD_INVOKE_do:
2187                         /* copy arguments to registers or stack location */
2188
2189                         s3 = md->paramcount;
2190
2191                         MCODECHECK((s3 << 1) + 64);
2192
2193                         for (s3 = s3 - 1; s3 >= 0; s3--) {
2194                                 var = VAR(iptr->sx.s23.s2.args[s3]);
2195                                 d   = md->params[s3].regoff;
2196
2197                                 if (var->flags & PREALLOC) /* argument was precolored? */
2198                                         continue;
2199
2200                                 /* TODO: document me */
2201 #if !defined(ENABLE_SOFTFLOAT)
2202                                 if (IS_INT_LNG_TYPE(var->type)) {
2203 #endif /* !defined(ENABLE_SOFTFLOAT) */
2204                                         if (!md->params[s3].inmemory) {
2205                                                 s1 = emit_load(jd, iptr, var, d);
2206
2207                                                 if (IS_2_WORD_TYPE(var->type))
2208                                                         M_LNGMOVE(s1, d);
2209                                                 else
2210                                                         M_INTMOVE(s1, d);
2211                                         }
2212                                         else {
2213                                                 if (IS_2_WORD_TYPE(var->type)) {
2214                                                         s1 = emit_load(jd, iptr, var, REG_ITMP12_PACKED);
2215                                                         M_LST(s1, REG_SP, d);
2216                                                 }
2217                                                 else {
2218                                                         s1 = emit_load(jd, iptr, var, REG_ITMP1);
2219                                                         M_IST(s1, REG_SP, d);
2220                                                 }
2221                                         }
2222 #if !defined(ENABLE_SOFTFLOAT)
2223                                 }
2224                                 else {
2225                                         if (!md->params[s3].inmemory) {
2226                                                 s1 = emit_load(jd, iptr, var, REG_FTMP1);
2227                                                 if (IS_2_WORD_TYPE(var->type))
2228                                                         M_CAST_D2L(s1, d);
2229                                                 else
2230                                                         M_CAST_F2I(s1, d);
2231                                         }
2232                                         else {
2233                                                 s1 = emit_load(jd, iptr, var, REG_FTMP1);
2234                                                 if (IS_2_WORD_TYPE(var->type))
2235                                                         M_DST(s1, REG_SP, d);
2236                                                 else
2237                                                         M_FST(s1, REG_SP, d);
2238                                         }
2239                                 }
2240 #endif /* !defined(ENABLE_SOFTFLOAT) */
2241                         }
2242
2243                         switch (iptr->opc) {
2244                         case ICMD_BUILTIN:
2245
2246                                 if (bte->stub == NULL) {
2247                                         disp = dseg_add_functionptr(cd, bte->fp);
2248                                 } else {
2249                                         disp = dseg_add_functionptr(cd, bte->stub);
2250                                 }
2251
2252                                 M_DSEG_LOAD(REG_PV, disp); /* pointer to built-in-function */
2253
2254                                 /* generate the actual call */
2255
2256                                 M_MOV(REG_LR, REG_PC);
2257                                 M_MOV(REG_PC, REG_PV);
2258                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2259                                 M_RECOMPUTE_PV(s1);
2260                                 break;
2261
2262                         case ICMD_INVOKESPECIAL:
2263                                 emit_nullpointer_check(cd, iptr, REG_A0);
2264                                 /* fall through */
2265
2266                         case ICMD_INVOKESTATIC:
2267                                 if (lm == NULL) {
2268                                         disp = dseg_add_unique_address(cd, NULL);
2269
2270                                         patcher_add_patch_ref(jd, PATCHER_invokestatic_special,
2271                                                                                 um, disp);
2272                                 }
2273                                 else
2274                                         disp = dseg_add_address(cd, lm->stubroutine);
2275
2276                                 M_DSEG_LOAD(REG_PV, disp);            /* Pointer to method */
2277
2278                                 /* generate the actual call */
2279
2280                                 M_MOV(REG_LR, REG_PC);
2281                                 M_MOV(REG_PC, REG_PV);
2282                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2283                                 M_RECOMPUTE_PV(s1);
2284                                 break;
2285
2286                         case ICMD_INVOKEVIRTUAL:
2287                                 if (lm == NULL) {
2288                                         patcher_add_patch_ref(jd, PATCHER_invokevirtual, um, 0);
2289
2290                                         s1 = 0;
2291                                 }
2292                                 else
2293                                         s1 = OFFSET(vftbl_t, table[0]) +
2294                                                 sizeof(methodptr) * lm->vftblindex;
2295
2296                                 /* implicit null-pointer check */
2297                                 M_LDR_INTERN(REG_METHODPTR, REG_A0,
2298                                                          OFFSET(java_object_t, vftbl));
2299                                 M_LDR_INTERN(REG_PV, REG_METHODPTR, s1);
2300
2301                                 /* generate the actual call */
2302
2303                                 M_MOV(REG_LR, REG_PC);
2304                                 M_MOV(REG_PC, REG_PV);
2305                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2306                                 M_RECOMPUTE_PV(s1);
2307                                 break;
2308
2309                         case ICMD_INVOKEINTERFACE:
2310                                 if (lm == NULL) {
2311                                         patcher_add_patch_ref(jd, PATCHER_invokeinterface, um, 0);
2312
2313                                         s1 = 0;
2314                                         s2 = 0;
2315                                 }
2316                                 else {
2317                                         s1 = OFFSET(vftbl_t, interfacetable[0]) -
2318                                                 sizeof(methodptr*) * lm->class->index;
2319                                         s2 = sizeof(methodptr) * (lm - lm->class->methods);
2320                                 }
2321
2322                                 /* implicit null-pointer check */
2323                                 M_LDR_INTERN(REG_METHODPTR, REG_A0,
2324                                                          OFFSET(java_object_t, vftbl));
2325                                 M_LDR_INTERN(REG_METHODPTR, REG_METHODPTR, s1);
2326                                 M_LDR_INTERN(REG_PV, REG_METHODPTR, s2);
2327
2328                                 /* generate the actual call */
2329
2330                                 M_MOV(REG_LR, REG_PC);
2331                                 M_MOV(REG_PC, REG_PV);
2332                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2333                                 M_RECOMPUTE_PV(s1);
2334                                 break;
2335                         }
2336
2337                         /* store size of call code in replacement point */
2338                         REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2339
2340                         /* store return value */
2341
2342                         d = md->returntype.type;
2343
2344 #if !defined(__SOFTFP__)
2345                         /* TODO: this is only a hack, since we use R0/R1 for float
2346                            return!  this depends on gcc; it is independent from
2347                            our ENABLE_SOFTFLOAT define */
2348                         if (iptr->opc == ICMD_BUILTIN && d != TYPE_VOID && IS_FLT_DBL_TYPE(d)) {
2349 #if 0 && !defined(NDEBUG)
2350                                 dolog("BUILTIN that returns float or double (%s.%s)", m->class->name->text, m->name->text);
2351 #endif
2352                                 /* we cannot use this macro, since it is not defined
2353                                    in ENABLE_SOFTFLOAT M_CAST_FLT_TO_INT_TYPED(d,
2354                                    REG_FRESULT, REG_RESULT_TYPED(d)); */
2355                                 if (IS_2_WORD_TYPE(d)) {
2356                                         DCD(0xed2d8102); /* stfd    f0, [sp, #-8]! */
2357                                         M_LDRD_UPDATE(REG_RESULT_PACKED, REG_SP, 8);
2358                                 } else {
2359                                         DCD(0xed2d0101); /* stfs    f0, [sp, #-4]!*/
2360                                         M_LDR_UPDATE(REG_RESULT, REG_SP, 4);
2361                                 }
2362                         }
2363 #endif
2364
2365                         if (d != TYPE_VOID) {
2366 #if !defined(ENABLE_SOFTFLOAT)
2367                                 if (IS_INT_LNG_TYPE(d)) {
2368 #endif /* !defined(ENABLE_SOFTFLOAT) */
2369                                         if (IS_2_WORD_TYPE(d)) {
2370                                                 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
2371                                                 M_LNGMOVE(REG_RESULT_PACKED, s1);
2372                                         }
2373                                         else {
2374                                                 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2375                                                 M_INTMOVE(REG_RESULT, s1);
2376                                         }
2377
2378 #if !defined(ENABLE_SOFTFLOAT)
2379                                 } else {
2380                                         s1 = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
2381                                         if (IS_2_WORD_TYPE(d))
2382                                                 M_CAST_L2D(REG_RESULT_PACKED, s1);
2383                                         else
2384                                                 M_CAST_I2F(REG_RESULT, s1);
2385                                 }
2386 #endif /* !defined(ENABLE_SOFTFLOAT) */
2387
2388                                 emit_store_dst(jd, iptr, s1);
2389                         }
2390                         break;
2391
2392                 case ICMD_CHECKCAST:  /* ..., objectref ==> ..., objectref            */
2393
2394                         if (!(iptr->flags.bits & INS_FLAG_ARRAY)) {
2395                                 /* object type cast-check */
2396
2397                         classinfo *super;
2398                         s4         superindex;
2399
2400                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2401                                 super      = NULL;
2402                                 superindex = 0;
2403                         }
2404                         else {
2405                                 super      = iptr->sx.s23.s3.c.cls;
2406                                 superindex = super->index;
2407                         }
2408
2409                                 if ((super == NULL) || !(super->flags & ACC_INTERFACE))
2410                                         CODEGEN_CRITICAL_SECTION_NEW;
2411
2412                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2413
2414                         /* if class is not resolved, check which code to call */
2415
2416                         if (super == NULL) {
2417                                 M_TST(s1, s1);
2418                                 emit_label_beq(cd, BRANCH_LABEL_1);
2419
2420                                 disp = dseg_add_unique_s4(cd, 0); /* super->flags */
2421                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_flags,
2422                                                     iptr->sx.s23.s3.c.ref, disp);
2423
2424                                 M_DSEG_LOAD(REG_ITMP2, disp);
2425                                 disp = dseg_add_s4(cd, ACC_INTERFACE);
2426                                 M_DSEG_LOAD(REG_ITMP3, disp);
2427                                 M_TST(REG_ITMP2, REG_ITMP3);
2428                                 emit_label_beq(cd, BRANCH_LABEL_2);
2429                         }
2430
2431                         /* interface checkcast code */
2432
2433                         if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2434                                 if ((super == NULL) || !IS_IMM(superindex)) {
2435                                         disp = dseg_add_unique_s4(cd, superindex);
2436                                 }
2437                                 if (super == NULL) {
2438                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_index,
2439                                                             iptr->sx.s23.s3.c.ref, disp);
2440                                 }
2441                                 else {
2442                                         M_TST(s1, s1);
2443                                         emit_label_beq(cd, BRANCH_LABEL_3);
2444                                 }
2445
2446                                 M_LDR_INTERN(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
2447                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, interfacetablelength));
2448
2449                                 /* we put unresolved or non-immediate superindices onto dseg */
2450                                 if ((super == NULL) || !IS_IMM(superindex)) {
2451                                         /* disp was computed before we added the patcher */
2452                                         M_DSEG_LOAD(REG_ITMP2, disp);
2453                                         M_CMP(REG_ITMP3, REG_ITMP2);
2454                                 } else {
2455                                         assert(IS_IMM(superindex));
2456                                         M_CMP_IMM(REG_ITMP3, superindex);
2457                                 }
2458
2459                                 emit_classcast_check(cd, iptr, BRANCH_LE, REG_ITMP3, s1);
2460
2461                                 /* if we loaded the superindex out of the dseg above, we do
2462                                    things differently here! */
2463                                 if ((super == NULL) || !IS_IMM(superindex)) {
2464
2465                                         M_LDR_INTERN(REG_ITMP3, s1, OFFSET(java_object_t, vftbl));
2466
2467                                         /* this assumes something */
2468                                         assert(OFFSET(vftbl_t, interfacetable[0]) == 0);
2469
2470                                         /* this does: REG_ITMP3 - superindex * sizeof(methodptr*) */
2471                                         assert(sizeof(methodptr*) == 4);
2472                                         M_SUB(REG_ITMP2, REG_ITMP3, REG_LSL(REG_ITMP2, 2));
2473
2474                                         s2 = 0;
2475
2476                                 } else {
2477
2478                                         s2 = OFFSET(vftbl_t, interfacetable[0]) -
2479                                                                 superindex * sizeof(methodptr*);
2480
2481                                 }
2482
2483                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, s2);
2484                                 M_TST(REG_ITMP3, REG_ITMP3);
2485                                 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_ITMP3, s1);
2486
2487                                 if (super == NULL)
2488                                         emit_label_br(cd, BRANCH_LABEL_4);
2489                                 else
2490                                         emit_label(cd, BRANCH_LABEL_3);
2491                         }
2492
2493                         /* class checkcast code */
2494
2495                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2496                                 if (super == NULL) {
2497                                         emit_label(cd, BRANCH_LABEL_2);
2498
2499                                         disp = dseg_add_unique_address(cd, NULL);
2500
2501                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_vftbl,
2502                                                             iptr->sx.s23.s3.c.ref,
2503                                                                                 disp);
2504                                 }
2505                                 else {
2506                                         disp = dseg_add_address(cd, super->vftbl);
2507
2508                                         M_TST(s1, s1);
2509                                         emit_label_beq(cd, BRANCH_LABEL_5);
2510                                 }
2511
2512                                 M_LDR_INTERN(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
2513                                 M_DSEG_LOAD(REG_ITMP3, disp);
2514
2515                                 CODEGEN_CRITICAL_SECTION_START;
2516
2517                                 M_LDR_INTERN(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, baseval));
2518                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, baseval));
2519                                 M_SUB(REG_ITMP2, REG_ITMP2, REG_ITMP3);
2520                                 M_DSEG_LOAD(REG_ITMP3, disp);
2521                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, diffval));
2522
2523                                 CODEGEN_CRITICAL_SECTION_END;
2524
2525                                 M_CMP(REG_ITMP2, REG_ITMP3);
2526                                 emit_classcast_check(cd, iptr, BRANCH_UGT, 0, s1);
2527
2528                                 if (super != NULL)
2529                                         emit_label(cd, BRANCH_LABEL_5);
2530                         }
2531
2532                         if (super == NULL) {
2533                                 emit_label(cd, BRANCH_LABEL_1);
2534                                 emit_label(cd, BRANCH_LABEL_4);
2535                         }
2536
2537                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
2538                         }
2539                         else {
2540                                 /* array type cast-check */
2541
2542                                 s1 = emit_load_s1(jd, iptr, REG_A0);
2543                                 M_INTMOVE(s1, REG_A0);
2544
2545                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2546                                         disp = dseg_add_unique_address(cd, NULL);
2547
2548                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
2549                                                                                 iptr->sx.s23.s3.c.ref,
2550                                                                                 disp);
2551                                 }
2552                                 else
2553                                         disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2554
2555                                 M_DSEG_LOAD(REG_A1, disp);
2556                                 disp = dseg_add_functionptr(cd, BUILTIN_arraycheckcast);
2557                                 M_DSEG_BRANCH(disp);
2558
2559                                 /* recompute pv */
2560                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2561                                 M_RECOMPUTE_PV(disp);
2562
2563                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2564                                 M_TST(REG_RESULT, REG_RESULT);
2565                                 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_RESULT, s1);
2566
2567                                 d = codegen_reg_of_dst(jd, iptr, s1);
2568                         }
2569
2570                         M_INTMOVE(s1, d);
2571                         emit_store_dst(jd, iptr, d);
2572                         break;
2573
2574                 case ICMD_INSTANCEOF: /* ..., objectref ==> ..., intresult            */
2575
2576                         {
2577                         classinfo *super;
2578                         s4         superindex;
2579
2580                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2581                                 super      = NULL;
2582                                 superindex = 0;
2583                         }
2584                         else {
2585                                 super      = iptr->sx.s23.s3.c.cls;
2586                                 superindex = super->index;
2587                         }
2588
2589                         if ((super == NULL) || !(super->flags & ACC_INTERFACE))
2590                                 CODEGEN_CRITICAL_SECTION_NEW;
2591
2592                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2593                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
2594
2595                         if (s1 == d) {
2596                                 M_MOV(REG_ITMP1, s1);
2597                                 s1 = REG_ITMP1;
2598                         }
2599
2600                         /* if class is not resolved, check which code to call */
2601
2602                         if (super == NULL) {
2603                                 M_EOR(d, d, d);
2604
2605                                 M_TST(s1, s1);
2606                                 emit_label_beq(cd, BRANCH_LABEL_1);
2607
2608                                 disp = dseg_add_unique_s4(cd, 0); /* super->flags */
2609                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_flags,
2610                                                     iptr->sx.s23.s3.c.ref, disp);
2611
2612                                 M_DSEG_LOAD(REG_ITMP2, disp);
2613                                 disp = dseg_add_s4(cd, ACC_INTERFACE);
2614                                 M_DSEG_LOAD(REG_ITMP3, disp);
2615                                 M_TST(REG_ITMP2, REG_ITMP3);
2616                                 emit_label_beq(cd, BRANCH_LABEL_2);
2617                         }
2618
2619                         /* interface checkcast code */
2620
2621                         if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2622                                 if ((super == NULL) || !IS_IMM(superindex)) {
2623                                         disp = dseg_add_unique_s4(cd, superindex);
2624                                 }
2625                                 if (super == NULL) {
2626                                         /* If d == REG_ITMP2, then it's destroyed in check
2627                                            code above.  */
2628                                         if (d == REG_ITMP2)
2629                                                 M_EOR(d, d, d);
2630
2631                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_index,
2632                                                             iptr->sx.s23.s3.c.ref, disp);
2633                                 }
2634                                 else {
2635                                         M_EOR(d, d, d);
2636                                         M_TST(s1, s1);
2637                                         emit_label_beq(cd, BRANCH_LABEL_3);
2638                                 }
2639
2640                                 M_LDR_INTERN(REG_ITMP1, s1, OFFSET(java_object_t, vftbl));
2641                                 M_LDR_INTERN(REG_ITMP3,
2642                                                          REG_ITMP1, OFFSET(vftbl_t, interfacetablelength));
2643
2644                                 /* we put unresolved or non-immediate superindices onto dseg
2645                                    and do things slightly different */
2646                                 if ((super == NULL) || !IS_IMM(superindex)) {
2647                                         /* disp was computed before we added the patcher */
2648                                         M_DSEG_LOAD(REG_ITMP2, disp);
2649                                         M_CMP(REG_ITMP3, REG_ITMP2);
2650
2651                                         if (d == REG_ITMP2) {
2652                                                 M_EORLE(d, d, d);
2653                                                 M_BLE(4);
2654                                         } else {
2655                                                 M_BLE(3);
2656                                         }
2657
2658                                         /* this assumes something */
2659                                         assert(OFFSET(vftbl_t, interfacetable[0]) == 0);
2660
2661                                         /* this does: REG_ITMP3 - superindex * sizeof(methodptr*) */
2662                                         assert(sizeof(methodptr*) == 4);
2663                                         M_SUB(REG_ITMP1, REG_ITMP1, REG_LSL(REG_ITMP2, 2));
2664
2665                                         if (d == REG_ITMP2) {
2666                                                 M_EOR(d, d, d);
2667                                         }
2668
2669                                         s2 = 0;
2670
2671                                 } else {
2672                                         assert(IS_IMM(superindex));
2673                                         M_CMP_IMM(REG_ITMP3, superindex);
2674
2675                                         M_BLE(2);
2676
2677                                         s2 = OFFSET(vftbl_t, interfacetable[0]) -
2678                                                 superindex * sizeof(methodptr*);
2679
2680                                 }
2681
2682                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP1, s2);
2683                                 M_TST(REG_ITMP3, REG_ITMP3);
2684                                 M_MOVNE_IMM(1, d);
2685
2686                                 if (super == NULL)
2687                                         emit_label_br(cd, BRANCH_LABEL_4);
2688                                 else
2689                                         emit_label(cd, BRANCH_LABEL_3);
2690                         }
2691
2692                         /* class checkcast code */
2693
2694                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2695                                 if (super == NULL) {
2696                                         emit_label(cd, BRANCH_LABEL_2);
2697
2698                                         disp = dseg_add_unique_address(cd, NULL);
2699
2700                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_vftbl,
2701                                                             iptr->sx.s23.s3.c.ref, disp);
2702                                 }
2703                                 else {
2704                                         disp = dseg_add_address(cd, super->vftbl);
2705
2706                                         M_EOR(d, d, d);
2707                                         M_TST(s1, s1);
2708                                         emit_label_beq(cd, BRANCH_LABEL_5);
2709                                 }
2710
2711                                 M_LDR_INTERN(REG_ITMP1, s1, OFFSET(java_object_t, vftbl));
2712                                 M_DSEG_LOAD(REG_ITMP2, disp);
2713
2714                                 CODEGEN_CRITICAL_SECTION_START;
2715
2716                                 M_LDR_INTERN(REG_ITMP1, REG_ITMP1, OFFSET(vftbl_t, baseval));
2717                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2718                                 M_LDR_INTERN(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2719
2720                                 CODEGEN_CRITICAL_SECTION_END;
2721
2722                                 M_SUB(REG_ITMP1, REG_ITMP1, REG_ITMP3);
2723                                 M_CMP(REG_ITMP1, REG_ITMP2);
2724                                 /* If d == REG_ITMP2, then it's destroyed */
2725                                 if (d == REG_ITMP2)
2726                                         M_EOR(d, d, d);
2727                                 M_MOVLS_IMM(1, d);
2728
2729                                 if (super != NULL)
2730                                         emit_label(cd, BRANCH_LABEL_5);
2731                         }
2732
2733                         if (super == NULL) {
2734                                 emit_label(cd, BRANCH_LABEL_1);
2735                                 emit_label(cd, BRANCH_LABEL_4);
2736                         }
2737
2738                         }
2739
2740                         emit_store_dst(jd, iptr, d);
2741                         break;
2742
2743                 case ICMD_MULTIANEWARRAY:/* ..., cnt1, [cnt2, ...] ==> ..., arrayref  */
2744
2745                         /* copy sizes to stack if necessary  */
2746
2747                         MCODECHECK((iptr->s1.argcount << 1) + 64);
2748
2749                         for (s1 = iptr->s1.argcount; --s1 >= 0; ) {
2750
2751                                 var = VAR(iptr->sx.s23.s2.args[s1]);
2752
2753                                 /* copy SAVEDVAR sizes to stack */
2754
2755                                 if (!(var->flags & PREALLOC)) {
2756                                         s2 = emit_load(jd, iptr, var, REG_ITMP1);
2757                                         M_STR(s2, REG_SP, s1 * 4);
2758                                 }
2759                         }
2760
2761                         /* a0 = dimension count */
2762
2763                         assert(IS_IMM(iptr->s1.argcount));
2764                         M_MOV_IMM(REG_A0, iptr->s1.argcount);
2765
2766                         /* is patcher function set? */
2767
2768                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2769                                 disp = dseg_add_unique_address(cd, NULL);
2770
2771                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
2772                                                                         iptr->sx.s23.s3.c.ref, disp);
2773                         }
2774                         else
2775                                 disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2776
2777                         /* a1 = arraydescriptor */
2778
2779                         M_DSEG_LOAD(REG_A1, disp);
2780
2781                         /* a2 = pointer to dimensions = stack pointer */
2782
2783                         M_INTMOVE(REG_SP, REG_A2);
2784
2785                         /* call builtin_multianewarray here */
2786
2787                         disp = dseg_add_functionptr(cd, BUILTIN_multianewarray);
2788                         M_DSEG_BRANCH(disp);
2789
2790                         /* recompute pv */
2791
2792                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2793                         M_RECOMPUTE_PV(s1);
2794
2795                         /* check for exception before result assignment */
2796
2797                         emit_exception_check(cd, iptr);
2798
2799                         /* get arrayref */
2800
2801                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2802                         M_INTMOVE(REG_RESULT, d);
2803                         emit_store_dst(jd, iptr, d);
2804                         break;
2805
2806                 case ICMD_CHECKNULL:  /* ..., objectref  ==> ..., objectref           */
2807
2808                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2809                         emit_nullpointer_check(cd, iptr, s1);
2810                         break;
2811
2812                 default:
2813                         exceptions_throw_internalerror("Unknown ICMD %d during code generation",
2814                                                                                    iptr->opc);
2815                         return false;
2816                 } /* the big switch */
2817
2818                 } /* for all instructions */
2819
2820         } /* for all basic blocks */
2821
2822         dseg_createlinenumbertable(cd);
2823
2824
2825         /* generate traps */
2826
2827         emit_patcher_traps(jd);
2828
2829         /* everything's ok */
2830
2831         return true;
2832 }
2833
2834
2835 /* codegen_emit_stub_compiler **************************************************
2836
2837    Emits a stub routine which calls the compiler.
2838
2839 *******************************************************************************/
2840
2841 void codegen_emit_stub_compiler(jitdata *jd)
2842 {
2843         methodinfo  *m;
2844         codegendata *cd;
2845
2846         /* get required compiler data */
2847
2848         m  = jd->m;
2849         cd = jd->cd;
2850
2851         /* code for the stub */
2852
2853         M_LDR_INTERN(REG_ITMP1, REG_PC, -(2 * 4 + 2 * SIZEOF_VOID_P));
2854         M_LDR_INTERN(REG_PC, REG_PC, -(3 * 4 + 3 * SIZEOF_VOID_P));
2855 }
2856
2857
2858 /* codegen_emit_stub_native ****************************************************
2859
2860    Emits a stub routine which calls a native method.
2861
2862 *******************************************************************************/
2863
2864 void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f, int skipparams)
2865 {
2866         methodinfo  *m;
2867         codeinfo    *code;
2868         codegendata *cd;
2869         methoddesc  *md;
2870         s4           i, j;
2871         s4           t;
2872         int          s1, s2;
2873         int          disp;
2874
2875         /* get required compiler data */
2876
2877         m    = jd->m;
2878         code = jd->code;
2879         cd   = jd->cd;
2880
2881         /* initialize variables */
2882
2883         md = m->parseddesc;
2884
2885         /* calculate stackframe size */
2886
2887         cd->stackframesize =
2888                 4 +                                                /* return address  */
2889                 sizeof(stackframeinfo_t) +                         /* stackframeinfo  */
2890                 sizeof(localref_table) +                           /* localref_table  */
2891                 nmd->memuse * 4;                                   /* stack arguments */
2892
2893         /* align stack to 8-byte */
2894
2895         cd->stackframesize = (cd->stackframesize + 4) & ~4;
2896
2897         /* create method header */
2898
2899         (void) dseg_add_unique_address(cd, code);              /* CodeinfoPointer */
2900         (void) dseg_add_unique_s4(cd, cd->stackframesize);     /* FrameSize       */
2901         (void) dseg_add_unique_s4(cd, 0);                      /* IsSync          */
2902         (void) dseg_add_unique_s4(cd, 0);                      /* IsLeaf          */
2903         (void) dseg_add_unique_s4(cd, 0);                      /* IntSave         */
2904         (void) dseg_add_unique_s4(cd, 0);                      /* FltSave         */
2905         (void) dseg_addlinenumbertablesize(cd);
2906         (void) dseg_add_unique_s4(cd, 0);                      /* ExTableSize     */
2907
2908         /* generate stub code */
2909
2910         M_STMFD(1<<REG_LR, REG_SP);
2911         M_SUB_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - 1);
2912
2913 #if !defined(NDEBUG)
2914         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
2915                 emit_verbosecall_enter(jd);
2916 #endif
2917
2918 #if defined(ENABLE_GC_CACAO)
2919         /* Save callee saved integer registers in stackframeinfo (GC may
2920            need to recover them during a collection). */
2921
2922         disp = cd->stackframesize - SIZEOF_VOID_P - sizeof(stackframeinfo_t) +
2923                 OFFSET(stackframeinfo_t, intregs);
2924
2925         for (i = 0; i < INT_SAV_CNT; i++)
2926                 M_STR_INTERN(abi_registers_integer_saved[i], REG_SP, disp + i * 4);
2927 #endif
2928
2929         /* Save integer and float argument registers (these are 4
2930            registers, stack is 8-byte aligned). */
2931
2932         M_STMFD(BITMASK_ARGS, REG_SP);
2933         /* TODO: floating point */
2934
2935         /* create native stackframe info */
2936
2937         M_ADD_IMM(REG_A0, REG_SP, 4*4);
2938         M_MOV(REG_A1, REG_PV);
2939         disp = dseg_add_functionptr(cd, codegen_start_native_call);
2940         M_DSEG_BRANCH(disp);
2941
2942         /* recompute pv */
2943
2944         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2945         M_RECOMPUTE_PV(s1);
2946
2947         /* remember class argument */
2948
2949         if (m->flags & ACC_STATIC)
2950                 M_MOV(REG_ITMP3, REG_RESULT);
2951
2952         /* Restore integer and float argument registers (these are 4
2953            registers, stack is 8-byte aligned). */
2954
2955         M_LDMFD(BITMASK_ARGS, REG_SP);
2956         /* TODO: floating point */
2957
2958         /* copy or spill arguments to new locations */
2959         /* ATTENTION: the ARM has only integer argument registers! */
2960
2961         for (i = md->paramcount - 1, j = i + skipparams; i >= 0; i--, j--) {
2962                 t = md->paramtypes[i].type;
2963
2964                 if (!md->params[i].inmemory) {
2965                         s1 = md->params[i].regoff;
2966                         s2 = nmd->params[j].regoff;
2967
2968                         if (!nmd->params[j].inmemory) {
2969 #if !defined(__ARM_EABI__)
2970                                 SPLIT_OPEN(t, s2, REG_ITMP1);
2971 #endif
2972
2973                                 if (IS_2_WORD_TYPE(t))
2974                                         M_LNGMOVE(s1, s2);
2975                                 else
2976                                         M_INTMOVE(s1, s2);
2977
2978 #if !defined(__ARM_EABI__)
2979                                 SPLIT_STORE_AND_CLOSE(t, s2, 0);
2980 #endif
2981                         }
2982                         else {
2983                                 if (IS_2_WORD_TYPE(t))
2984                                         M_LST(s1, REG_SP, s2);
2985                                 else
2986                                         M_IST(s1, REG_SP, s2);
2987                         }
2988                 }
2989                 else {
2990                         s1 = md->params[i].regoff + cd->stackframesize;
2991                         s2 = nmd->params[j].regoff;
2992
2993                         if (IS_2_WORD_TYPE(t)) {
2994                                 M_LLD(REG_ITMP12_PACKED, REG_SP, s1);
2995                                 M_LST(REG_ITMP12_PACKED, REG_SP, s2);
2996                         }
2997                         else {
2998                                 M_ILD(REG_ITMP1, REG_SP, s1);
2999                                 M_IST(REG_ITMP1, REG_SP, s2);
3000                         }
3001                 }
3002         }
3003
3004         /* Handle native Java methods. */
3005
3006         if (m->flags & ACC_NATIVE) {
3007                 /* put class into second argument register */
3008
3009                 if (m->flags & ACC_STATIC)
3010                         M_MOV(REG_A1, REG_ITMP3);
3011
3012                 /* put env into first argument register */
3013
3014                 disp = dseg_add_address(cd, _Jv_env);
3015                 M_DSEG_LOAD(REG_A0, disp);
3016         }
3017
3018         /* Call the native function. */
3019
3020         disp = dseg_add_functionptr(cd, f);
3021         M_DSEG_BRANCH(disp);
3022
3023         /* recompute pv */
3024         /* TODO: this is only needed because of the tracer ... do we
3025            really need it? */
3026
3027         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3028         M_RECOMPUTE_PV(s1);
3029
3030 #if !defined(__SOFTFP__)
3031         /* TODO: this is only a hack, since we use R0/R1 for float return! */
3032         /* this depends on gcc; it is independent from our ENABLE_SOFTFLOAT define */
3033         if (md->returntype.type != TYPE_VOID && IS_FLT_DBL_TYPE(md->returntype.type)) {
3034 #if 0 && !defined(NDEBUG)
3035                 dolog("NATIVESTUB that returns float or double (%s.%s)", m->class->name->text, m->name->text);
3036 #endif
3037                 /* we cannot use this macro, since it is not defined in ENABLE_SOFTFLOAT */
3038                 /* M_CAST_FLT_TO_INT_TYPED(md->returntype.type, REG_FRESULT, REG_RESULT_TYPED(md->returntype.type)); */
3039                 if (IS_2_WORD_TYPE(md->returntype.type)) {
3040                         DCD(0xed2d8102); /* stfd    f0, [sp, #-8]! */
3041                         M_LDRD_UPDATE(REG_RESULT_PACKED, REG_SP, 8);
3042                 } else {
3043                         DCD(0xed2d0101); /* stfs    f0, [sp, #-4]!*/
3044                         M_LDR_UPDATE(REG_RESULT, REG_SP, 4);
3045                 }
3046         }
3047 #endif
3048
3049 #if !defined(NDEBUG)
3050         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
3051                 emit_verbosecall_exit(jd);
3052 #endif
3053
3054         /* remove native stackframe info */
3055         /* TODO: improve this store/load */
3056
3057         M_STMFD(BITMASK_RESULT, REG_SP);
3058
3059         M_ADD_IMM(REG_A0, REG_SP, 2*4);
3060         M_MOV(REG_A1, REG_PV);
3061         disp = dseg_add_functionptr(cd, codegen_finish_native_call);
3062         M_DSEG_BRANCH(disp);
3063         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3064         M_RECOMPUTE_PV(s1);
3065
3066         M_MOV(REG_ITMP1_XPTR, REG_RESULT);
3067         M_LDMFD(BITMASK_RESULT, REG_SP);
3068
3069 #if defined(ENABLE_GC_CACAO)
3070         /* restore callee saved int registers from stackframeinfo (GC might have  */
3071         /* modified them during a collection).                                    */
3072
3073         disp = cd->stackframesize - SIZEOF_VOID_P - sizeof(stackframeinfo_t) +
3074                 OFFSET(stackframeinfo_t, intregs);
3075
3076         for (i = 0; i < INT_SAV_CNT; i++)
3077                 M_LDR_INTERN(abi_registers_integer_saved[i], REG_SP, disp + i * 4);
3078 #endif
3079
3080         /* finish stub code, but do not yet return to caller */
3081
3082         M_ADD_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - 1);
3083         M_LDMFD(1<<REG_LR, REG_SP);
3084
3085         /* check for exception */
3086
3087         M_TST(REG_ITMP1_XPTR, REG_ITMP1_XPTR);
3088         M_MOVEQ(REG_LR, REG_PC);            /* if no exception, return to caller  */
3089
3090         /* handle exception here */
3091
3092         M_SUB_IMM(REG_ITMP2_XPC, REG_LR, 4);/* move fault address into xpc        */
3093
3094         disp = dseg_add_functionptr(cd, asm_handle_nat_exception);
3095         M_DSEG_LOAD(REG_ITMP3, disp);       /* load asm exception handler address */
3096         M_MOV(REG_PC, REG_ITMP3);           /* jump to asm exception handler      */
3097
3098         /* generate patcher stubs */
3099
3100         emit_patcher_traps(jd);
3101 }
3102
3103
3104 /* asm_debug *******************************************************************
3105
3106    Lazy debugger!
3107
3108 *******************************************************************************/
3109
3110 void asm_debug(int a1, int a2, int a3, int a4)
3111 {
3112         printf("===> i am going to exit after this debugging message!\n");
3113         printf("got asm_debug(%p, %p, %p, %p)\n",(void*)a1,(void*)a2,(void*)a3,(void*)a4);
3114         vm_abort("leave you now");
3115 }
3116
3117
3118 /*
3119  * These are local overrides for various environment variables in Emacs.
3120  * Please do not remove this and leave it at the end of the file, where
3121  * Emacs will automagically detect them.
3122  * ---------------------------------------------------------------------
3123  * Local variables:
3124  * mode: c
3125  * indent-tabs-mode: t
3126  * c-basic-offset: 4
3127  * tab-width: 4
3128  * End:
3129  * vim:noexpandtab:sw=4:ts=4:
3130  */