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                 case ICMD_NOP:        /* ... ==> ...                                  */
 391                         break;
 392
 393         /* constant operations ************************************************/
 394
 395                 case ICMD_ICONST:     /* ...  ==> ..., constant                       */
 396
 397                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 398                         ICONST(d, iptr->sx.val.i);
 399                         emit_store_dst(jd, iptr, d);
 400                         break;
 401
 402                 case ICMD_ACONST:     /* ... ==> ..., constant                        */
 403
 404                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 405                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
 406                                 disp = dseg_add_unique_address(cd, NULL);
 407
 408                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
 409                                                     iptr->sx.val.c.ref, disp);
 410
 411                                 M_DSEG_LOAD(d, disp);
 412                         }
 413                         else {
 414                                 ICONST(d, (u4) iptr->sx.val.anyptr);
 415                         }
 416                         emit_store_dst(jd, iptr, d);
 417                         break;
 418
 419                 case ICMD_LCONST:     /* ...  ==> ..., constant                       */
 420
 421                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 422                         LCONST(d, iptr->sx.val.l);
 423                         emit_store_dst(jd, iptr, d);
 424                         break;
 425
 426                 case ICMD_FCONST:     /* ...  ==> ..., constant                       */
 427
 428 #if defined(ENABLE_SOFTFLOAT)
 429                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 430                         ICONST(d, iptr->sx.val.i);
 431                         emit_store_dst(jd, iptr, d);
 432 #else
 433                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 434                         FCONST(d, iptr->sx.val.f);
 435                         emit_store_dst(jd, iptr, d);
 436 #endif
 437                         break;
 438
 439                 case ICMD_DCONST:     /* ...  ==> ..., constant                       */
 440
 441 #if defined(ENABLE_SOFTFLOAT)
 442                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 443                         LCONST(d, iptr->sx.val.l);
 444                         emit_store_dst(jd, iptr, d);
 445 #else
 446                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 447                         DCONST(d, iptr->sx.val.d);
 448                         emit_store_dst(jd, iptr, d);
 449 #endif
 450                         break;
 451
 452
 453                 /* load/store/copy/move operations ************************************/
 454
 455                 case ICMD_ILOAD:      /* ...  ==> ..., content of local variable      */
 456                 case ICMD_ALOAD:      /* op1 = local variable                         */
 457                 case ICMD_FLOAD:
 458                 case ICMD_LLOAD:
 459                 case ICMD_DLOAD:
 460                 case ICMD_ISTORE:     /* ..., value  ==> ...                          */
 461                 case ICMD_FSTORE:
 462                 case ICMD_LSTORE:
 463                 case ICMD_DSTORE:
 464                 case ICMD_COPY:
 465                 case ICMD_MOVE:
 466
 467                         emit_copy(jd, iptr);
 468                         break;
 469
 470                 case ICMD_ASTORE:
 471                         if (!(iptr->flags.bits & INS_FLAG_RETADDR))
 472                                 emit_copy(jd, iptr);
 473                         break;
 474
 475                 /* pop operations *****************************************************/
 476
 477                 /* attention: double and longs are only one entry in CACAO ICMDs      */
 478
 479                 case ICMD_POP:        /* ..., value  ==> ...                          */
 480                 case ICMD_POP2:       /* ..., value, value  ==> ...                   */
 481
 482                         break;
 483
 484
 485                 /* integer operations *************************************************/
 486
 487                 case ICMD_INT2BYTE:   /* ..., value  ==> ..., value                   */
 488
 489                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 490                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 491                         M_MOV(d, REG_LSL(s1, 24));
 492                         M_MOV(d, REG_ASR(d, 24));
 493                         emit_store_dst(jd, iptr, d);
 494                         break;
 495
 496                 case ICMD_INT2CHAR:   /* ..., value  ==> ..., value                   */
 497
 498                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 499                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 500                         M_MOV(d, REG_LSL(s1, 16));
 501                         M_MOV(d, REG_LSR(d, 16)); /* ATTENTION: char is unsigned */
 502                         emit_store_dst(jd, iptr, d);
 503                         break;
 504
 505                 case ICMD_INT2SHORT:  /* ..., value  ==> ..., value                   */
 506
 507                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 508                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 509                         M_MOV(d, REG_LSL(s1, 16));
 510                         M_MOV(d, REG_ASR(d, 16));
 511                         emit_store_dst(jd, iptr, d);
 512                         break;
 513
 514                 case ICMD_I2L:        /* ..., value  ==> ..., value                   */
 515
 516                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 517                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 518                         M_INTMOVE(s1, GET_LOW_REG(d));
 519                         M_MOV(GET_HIGH_REG(d), REG_ASR(s1, 31));
 520                         emit_store_dst(jd, iptr, d);
 521                         break;
 522
 523                 case ICMD_L2I:        /* ..., value  ==> ..., value                   */
 524
 525                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 526                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 527                         M_INTMOVE(s1, d);
 528                         emit_store_dst(jd, iptr, d);
 529                         break;
 530
 531                 case ICMD_INEG:       /* ..., value  ==> ..., - value                 */
 532
 533                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 534                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 535                         M_RSB_IMM(d, s1, 0);
 536                         emit_store_dst(jd, iptr, d);
 537                         break;
 538
 539                 case ICMD_LNEG:       /* ..., value  ==> ..., - value                 */
 540
 541                         s1 = emit_load_s1(jd, iptr, REG_ITMP12_PACKED);
 542                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 543                         M_RSB_IMMS(GET_LOW_REG(d), GET_LOW_REG(s1), 0);
 544                         M_RSC_IMM(GET_HIGH_REG(d), GET_HIGH_REG(s1), 0);
 545                         emit_store_dst(jd, iptr, d);
 546                         break;
 547
 548                 case ICMD_IADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 549
 550                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 551                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 552                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 553                         M_ADD(d, s1, s2);
 554                         emit_store_dst(jd, iptr, d);
 555                         break;
 556
 557                 case ICMD_LADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 558
 559                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 560                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 561                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 562                         M_ADD_S(GET_LOW_REG(d), s1, s2);
 563                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 564                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 565                         M_ADC(GET_HIGH_REG(d), s1, s2);
 566                         emit_store_dst(jd, iptr, d);
 567                         break;
 568
 569                 case ICMD_IADDCONST:
 570                 case ICMD_IINC:
 571
 572                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 573                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 574
 575                         if (IS_IMM(iptr->sx.val.i)) {
 576                                 M_ADD_IMM(d, s1, iptr->sx.val.i);
 577                         } else if (IS_IMM(-iptr->sx.val.i)) {
 578                                 M_SUB_IMM(d, s1, (-iptr->sx.val.i));
 579                         } else {
 580                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 581                                 M_ADD(d, s1, REG_ITMP3);
 582                         }
 583
 584                         emit_store_dst(jd, iptr, d);
 585                         break;
 586
 587                 case ICMD_LADDCONST:  /* ..., value  ==> ..., value + constant        */
 588                                       /* sx.val.l = constant                          */
 589
 590                         s3 = iptr->sx.val.l & 0xffffffff;
 591                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 592                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 593                         if (IS_IMM(s3))
 594                                 M_ADD_IMMS(GET_LOW_REG(d), s1, s3);
 595                         else {
 596                                 ICONST(REG_ITMP3, s3);
 597                                 M_ADD_S(GET_LOW_REG(d), s1, REG_ITMP3);
 598                         }
 599                         s3 = iptr->sx.val.l >> 32;
 600                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP2);
 601                         if (IS_IMM(s3))
 602                                 M_ADC_IMM(GET_HIGH_REG(d), s1, s3);
 603                         else {
 604                                 ICONST(REG_ITMP3, s3);
 605                                 M_ADC(GET_HIGH_REG(d), s1, REG_ITMP3);
 606                         }
 607                         emit_store_dst(jd, iptr, d);
 608                         break;
 609
 610                 case ICMD_ISUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 611
 612                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 613                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 614                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 615                         M_SUB(d, s1, s2);
 616                         emit_store_dst(jd, iptr, d);
 617                         break;
 618
 619                 case ICMD_LSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 620
 621                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 622                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 623                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 624                         M_SUB_S(GET_LOW_REG(d), s1, s2);
 625                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 626                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 627                         M_SBC(GET_HIGH_REG(d), s1, s2);
 628                         emit_store_dst(jd, iptr, d);
 629                         break;
 630
 631                 case ICMD_ISUBCONST:  /* ..., value  ==> ..., value + constant        */
 632                                       /* sx.val.i = constant                          */
 633
 634                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 635                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 636                         if (IS_IMM(iptr->sx.val.i))
 637                                 M_SUB_IMM(d, s1, iptr->sx.val.i);
 638                         else {
 639                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 640                                 M_SUB(d, s1, REG_ITMP3);
 641                         }
 642                         emit_store_dst(jd, iptr, d);
 643                         break;
 644
 645                 case ICMD_LSUBCONST:  /* ..., value  ==> ..., value - constant        */
 646                                       /* sx.val.l = constant                          */
 647
 648                         s3 = iptr->sx.val.l & 0xffffffff;
 649                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 650                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 651                         if (IS_IMM(s3))
 652                                 M_SUB_IMMS(GET_LOW_REG(d), s1, s3);
 653                         else {
 654                                 ICONST(REG_ITMP3, s3);
 655                                 M_SUB_S(GET_LOW_REG(d), s1, REG_ITMP3);
 656                         }
 657                         s3 = iptr->sx.val.l >> 32;
 658                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP2);
 659                         if (IS_IMM(s3))
 660                                 M_SBC_IMM(GET_HIGH_REG(d), s1, s3);
 661                         else {
 662                                 ICONST(REG_ITMP3, s3);
 663                                 M_SBC(GET_HIGH_REG(d), s1, REG_ITMP3);
 664                         }
 665                         emit_store_dst(jd, iptr, d);
 666                         break;
 667
 668                 case ICMD_IMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 669
 670                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 671                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 672                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 673                         M_MUL(d, s1, s2);
 674                         emit_store_dst(jd, iptr, d);
 675                         break;
 676
 677                 case ICMD_IDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 678                 case ICMD_IREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 679
 680                         s1 = emit_load_s1(jd, iptr, REG_A0);
 681                         s2 = emit_load_s2(jd, iptr, REG_A1);
 682                         emit_arithmetic_check(cd, iptr, s2);
 683
 684                         /* move arguments into argument registers */
 685                         M_INTMOVE(s1, REG_A0);
 686                         M_INTMOVE(s2, REG_A1);
 687
 688                         /* call builtin function */
 689                         bte = iptr->sx.s23.s3.bte;
 690                         disp = dseg_add_functionptr(cd, bte->fp);
 691                         M_DSEG_BRANCH(disp);
 692
 693                         /* recompute pv */
 694                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
 695                         M_RECOMPUTE_PV(s1);
 696
 697                         /* move result into destination register */
 698                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
 699                         M_INTMOVE(REG_RESULT, d);
 700                         emit_store_dst(jd, iptr, d);
 701                         break;
 702
 703                 case ICMD_LDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 704                 case ICMD_LREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 705
 706                         /* move arguments into argument registers */
 707
 708                         s1 = emit_load_s1(jd, iptr, REG_A0_A1_PACKED);
 709                         s2 = emit_load_s2(jd, iptr, REG_A2_A3_PACKED);
 710                         /* XXX TODO: only do this if arithmetic check is really done! */
 711                         M_ORR(GET_HIGH_REG(s2), GET_LOW_REG(s2), REG_ITMP3);
 712                         emit_arithmetic_check(cd, iptr, REG_ITMP3);
 713
 714                         M_LNGMOVE(s1, REG_A0_A1_PACKED);
 715                         M_LNGMOVE(s2, REG_A2_A3_PACKED);
 716
 717                         /* call builtin function */
 718                         bte = iptr->sx.s23.s3.bte;
 719                         disp = dseg_add_functionptr(cd, bte->fp);
 720                         M_DSEG_BRANCH(disp);
 721
 722                         /* recompute pv */
 723                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
 724                         M_RECOMPUTE_PV(s1);
 725
 726                         /* move result into destination register */
 727                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
 728                         M_LNGMOVE(REG_RESULT_PACKED, d);
 729                         emit_store_dst(jd, iptr, d);
 730                         break;
 731
 732                 case ICMD_IMULPOW2:   /* ..., value  ==> ..., value * (2 ^ constant)  */
 733                                       /* sx.val.i = constant                          */
 734
 735                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 736                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 737                         M_MOV(d, REG_LSL(s1, iptr->sx.val.i));
 738                         emit_store_dst(jd, iptr, d);
 739                         break;
 740
 741                 case ICMD_IDIVPOW2:   /* ..., value  ==> ..., value / (2 ^ constant)  */
 742                                       /* sx.val.i = constant                          */
 743
 744                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 745                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 746                         /* this rounds towards 0 as java likes it */
 747                         M_MOV(REG_ITMP3, REG_ASR(s1, 31));
 748                         M_ADD(REG_ITMP3, s1, REG_LSR(REG_ITMP3, 32 - iptr->sx.val.i));
 749                         M_MOV(d, REG_ASR(REG_ITMP3, iptr->sx.val.i));
 750                         /* this rounds towards nearest, not java style */
 751                         /*M_MOV_S(d, REG_ASR(s1, iptr->sx.val.i));
 752                         M_ADCMI_IMM(d, d, 0);*/
 753                         emit_store_dst(jd, iptr, d);
 754                         break;
 755
 756                 case ICMD_IREMPOW2:   /* ..., value  ==> ..., value % constant        */
 757                                       /* sx.val.i = constant [ (2 ^ x) - 1 ]          */
 758
 759                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 760                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 761                         M_MOV_S(REG_ITMP1, s1);
 762                         M_RSBMI_IMM(REG_ITMP1, REG_ITMP1, 0);
 763                         if (IS_IMM(iptr->sx.val.i))
 764                                 M_AND_IMM(REG_ITMP1, iptr->sx.val.i, d);
 765                         else {
 766                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 767                                 M_AND(REG_ITMP1, REG_ITMP3, d);
 768                         }
 769                         M_RSBMI_IMM(d, d, 0);
 770                         emit_store_dst(jd, iptr, d);
 771                         break;
 772
 773                 case ICMD_ISHL:       /* ..., val1, val2  ==> ..., val1 << val2       */
 774
 775                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 776                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 777                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 778                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 779                         M_MOV(d, REG_LSL_REG(s1, REG_ITMP2));
 780                         emit_store_dst(jd, iptr, d);
 781                         break;
 782
 783                 case ICMD_ISHR:       /* ..., val1, val2  ==> ..., val1 >> val2       */
 784
 785                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 786                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 787                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 788                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 789                         M_MOV(d, REG_ASR_REG(s1, REG_ITMP2));
 790                         emit_store_dst(jd, iptr, d);
 791                         break;
 792
 793                 case ICMD_IUSHR:      /* ..., val1, val2  ==> ..., val1 >>> val2      */
 794
 795                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 796                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 797                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 798                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 799                         M_MOV(d, REG_LSR_REG(s1, REG_ITMP2));
 800                         emit_store_dst(jd, iptr, d);
 801                         break;
 802
 803                 case ICMD_ISHLCONST:  /* ..., value  ==> ..., value << constant       */
 804                                       /* sx.val.i = constant                          */
 805
 806                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 807                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 808                         M_MOV(d, REG_LSL(s1, iptr->sx.val.i & 0x1f));
 809                         emit_store_dst(jd, iptr, d);
 810                         break;
 811
 812                 case ICMD_ISHRCONST:  /* ..., value  ==> ..., value >> constant       */
 813                                       /* sx.val.i = constant                          */
 814
 815                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 816                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 817                         /* we need to check for zero here because arm interprets it as SHR by 32 */
 818                         if ((iptr->sx.val.i & 0x1f) == 0) {
 819                                 M_INTMOVE(s1, d);
 820                         } else {
 821                                 M_MOV(d, REG_ASR(s1, iptr->sx.val.i & 0x1f));
 822                         }
 823                         emit_store_dst(jd, iptr, d);
 824                         break;
 825
 826                 case ICMD_IUSHRCONST: /* ..., value  ==> ..., value >>> constant      */
 827                                       /* sx.val.i = constant                          */
 828
 829                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 830                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 831                         /* we need to check for zero here because arm interprets it as SHR by 32 */
 832                         if ((iptr->sx.val.i & 0x1f) == 0)
 833                                 M_INTMOVE(s1, d);
 834                         else
 835                                 M_MOV(d, REG_LSR(s1, iptr->sx.val.i & 0x1f));
 836                         emit_store_dst(jd, iptr, d);
 837                         break;
 838
 839                 case ICMD_IAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 840
 841                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 842                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 843                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 844                         M_AND(s1, s2, d);
 845                         emit_store_dst(jd, iptr, d);
 846                         break;
 847
 848                 case ICMD_LAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 849
 850                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 851                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 852                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 853                         M_AND(s1, s2, GET_LOW_REG(d));
 854                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 855                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 856                         M_AND(s1, s2, GET_HIGH_REG(d));
 857                         emit_store_dst(jd, iptr, d);
 858                         break;
 859
 860                 case ICMD_IOR:        /* ..., val1, val2  ==> ..., val1 | val2        */
 861
 862                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 863                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 864                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 865                         M_ORR(s1, s2, d);
 866                         emit_store_dst(jd, iptr, d);
 867                         break;
 868
 869                 case ICMD_LOR:       /* ..., val1, val2  ==> ..., val1 | val2        */
 870
 871                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 872                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 873                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 874                         M_ORR(s1, s2, GET_LOW_REG(d));
 875                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 876                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 877                         M_ORR(s1, s2, GET_HIGH_REG(d));
 878                         emit_store_dst(jd, iptr, d);
 879                         break;
 880
 881                 case ICMD_IXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
 882
 883                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 884                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 885                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 886                         M_EOR(s1, s2, d);
 887                         emit_store_dst(jd, iptr, d);
 888                         break;
 889
 890                 case ICMD_LXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
 891
 892                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 893                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 894                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 895                         M_EOR(s1, s2, GET_LOW_REG(d));
 896                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 897                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 898                         M_EOR(s1, s2, GET_HIGH_REG(d));
 899                         emit_store_dst(jd, iptr, d);
 900                         break;
 901
 902
 903         /* floating operations ************************************************/
 904
 905 #if !defined(ENABLE_SOFTFLOAT)
 906
 907                 case ICMD_FNEG:       /* ..., value  ==> ..., - value                 */
 908
 909                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 910                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 911                         M_FNEG(s1, d);
 912                         emit_store_dst(jd, iptr, d);
 913                         break;
 914
 915                 case ICMD_FADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 916
 917                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 918                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 919                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 920                         M_FADD(s1, s2, d);
 921                         emit_store_dst(jd, iptr, d);
 922                         break;
 923
 924                 case ICMD_FSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 925
 926                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 927                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 928                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 929                         M_FSUB(s1, s2, d);
 930                         emit_store_dst(jd, iptr, d);
 931                         break;
 932
 933                 case ICMD_FMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 934
 935                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 936                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 937                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 938                         M_FMUL(s1, s2, d);
 939                         emit_store_dst(jd, iptr, d);
 940                         break;
 941
 942                 case ICMD_FDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 943                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 944                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 945                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 946                         M_FDIV(s1, s2, d);
 947                         emit_store_dst(jd, iptr, d);
 948                         break;
 949
 950                 /* ATTENTION: Jave does not want IEEE behaviour in FREM, do
 951                    not use this */
 952
 953 #if 0
 954                 case ICMD_FREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 955
 956                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 957                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 958                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 959                         M_RMFS(d, s1, s2);
 960                         emit_store_dst(jd, iptr, d);
 961                         break;
 962 #endif
 963
 964                 case ICMD_DNEG:       /* ..., value  ==> ..., - value                 */
 965
 966                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 967                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 968                         M_DNEG(s1, d);
 969                         emit_store_dst(jd, iptr, d);
 970                         break;
 971
 972                 case ICMD_DADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 973
 974                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 975                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 976                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 977                         M_DADD(s1, s2, d);
 978                         emit_store_dst(jd, iptr, d);
 979                         break;
 980
 981                 case ICMD_DSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 982
 983                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 984                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 985                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 986                         M_DSUB(s1, s2, d);
 987                         emit_store_dst(jd, iptr, d);
 988                         break;
 989
 990                 case ICMD_DMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 991
 992                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 993                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 994                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 995                         M_DMUL(s1, s2, d);
 996                         emit_store_dst(jd, iptr, d);
 997                         break;
 998
 999                 case ICMD_DDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1000
1001                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1002                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1003                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1004                         M_DDIV(s1, s2, d);
1005                         emit_store_dst(jd, iptr, d);
1006                         break;
1007
1008                 /* ATTENTION: Jave does not want IEEE behaviour in DREM, do
1009                    not use this */
1010
1011 #if 0
1012                 case ICMD_DREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
1013
1014                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1015                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1016                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1017                         M_RMFD(d, s1, s2);
1018                         emit_store_dst(jd, iptr, d);
1019                         break;
1020 #endif
1021
1022                 case ICMD_I2F:       /* ..., value  ==> ..., (float) value            */
1023
1024                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1025                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1026                         M_CVTIF(s1, d);
1027                         emit_store_dst(jd, iptr, d);
1028                         break;
1029
1030                 case ICMD_I2D:       /* ..., value  ==> ..., (double) value           */
1031
1032                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1033                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1034                         M_CVTID(s1, d);
1035                         emit_store_dst(jd, iptr, d);
1036                         break;
1037
1038                 case ICMD_F2I:       /* ..., value  ==> ..., (int) value              */
1039
1040                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1041                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1042                         /* this uses round towards zero, as Java likes it */
1043                         M_CVTFI(s1, d);
1044 #if !defined(__VFP_FP__)
1045                         /* this checks for NaN; to return zero as Java likes it */
1046                         M_FCMP(s1, 0x8);
1047                         M_MOVVS_IMM(0, d);
1048 #endif
1049                         emit_store_dst(jd, iptr, d);
1050                         break;
1051
1052                 case ICMD_D2I:       /* ..., value  ==> ..., (int) value              */
1053
1054                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1055                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1056                         /* this uses round towards zero, as Java likes it */
1057                         M_CVTDI(s1, d);
1058 #if !defined(__VFP_FP__)
1059                         /* this checks for NaN; to return zero as Java likes it */
1060                         M_DCMP(s1, 0x8);
1061                         M_MOVVS_IMM(0, d);
1062 #endif
1063                         emit_store_dst(jd, iptr, d);
1064                         break;
1065
1066                 case ICMD_D2F:       /* ..., value  ==> ..., (float) value            */
1067
1068                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1069                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1070                         M_CVTDF(s1, d);
1071                         emit_store_dst(jd, iptr, d);
1072                         break;
1073
1074                 case ICMD_F2D:       /* ..., value  ==> ..., (double) value           */
1075
1076                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1077                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1078                         M_CVTFD(s1, d);
1079                         emit_store_dst(jd, iptr, d);
1080                         break;
1081
1082                 case ICMD_FCMPG:      /* ..., val1, val2  ==> ..., val1 fcmpg val2    */
1083
1084                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1085                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1086                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1087                         M_FCMP(s2, s1);
1088                         M_MOV_IMM(d, 0);
1089 #if defined(__VFP_FP__)
1090                         M_FMSTAT; /* on VFP we need to transfer the flags */
1091 #endif
1092                         M_SUBGT_IMM(d, d, 1);
1093                         M_ADDLT_IMM(d, d, 1);
1094                         emit_store_dst(jd, iptr, d);
1095                         break;
1096
1097                 case ICMD_DCMPG:      /* ..., val1, val2  ==> ..., val1 dcmpg val2    */
1098
1099                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1100                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1101                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1102                         M_DCMP(s2, s1);
1103                         M_MOV_IMM(d, 0);
1104 #if defined(__VFP_FP__)
1105                         M_FMSTAT; /* on VFP we need to transfer the flags */
1106 #endif
1107                         M_SUBGT_IMM(d, d, 1);
1108                         M_ADDLT_IMM(d, d, 1);
1109                         emit_store_dst(jd, iptr, d);
1110                         break;
1111
1112                 case ICMD_FCMPL:      /* ..., val1, val2  ==> ..., val1 fcmpl val2    */
1113
1114                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1115                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1116                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1117                         M_FCMP(s1, s2);
1118                         M_MOV_IMM(d, 0);
1119 #if defined(__VFP_FP__)
1120                         M_FMSTAT; /* on VFP we need to transfer the flags */
1121 #endif
1122                         M_SUBLT_IMM(d, d, 1);
1123                         M_ADDGT_IMM(d, d, 1);
1124                         emit_store_dst(jd, iptr, d);
1125                         break;
1126
1127                 case ICMD_DCMPL:      /* ..., val1, val2  ==> ..., val1 dcmpl val2    */
1128
1129                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1130                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1131                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1132                         M_DCMP(s1, s2);
1133                         M_MOV_IMM(d, 0);
1134 #if defined(__VFP_FP__)
1135                         M_FMSTAT; /* on VFP we need to transfer the flags */
1136 #endif
1137                         M_SUBLT_IMM(d, d, 1);
1138                         M_ADDGT_IMM(d, d, 1);
1139                         emit_store_dst(jd, iptr, d);
1140                         break;
1141
1142 #endif /* !defined(ENABLE_SOFTFLOAT) */
1143
1144
1145                 /* memory operations **************************************************/
1146
1147                 case ICMD_ARRAYLENGTH: /* ..., arrayref  ==> ..., length              */
1148
1149                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1150                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1151                         /* implicit null-pointer check */
1152                         M_ILD_INTERN(d, s1, OFFSET(java_array_t, size));
1153                         emit_store_dst(jd, iptr, d);
1154                         break;
1155
1156                 case ICMD_BALOAD:     /* ..., arrayref, index  ==> ..., value         */
1157
1158                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1159                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1160                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1161                         /* implicit null-pointer check */
1162                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1163                         M_ADD(REG_ITMP1, s1, s2); /* REG_ITMP1 = s1 + 1 * s2 */
1164                         M_LDRSB(d, REG_ITMP1, OFFSET(java_bytearray_t, data[0]));
1165                         emit_store_dst(jd, iptr, d);
1166                         break;
1167
1168                 case ICMD_CALOAD:     /* ..., arrayref, index  ==> ..., value         */
1169
1170                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1171                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1172                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1173                         /* implicit null-pointer check */
1174                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1175                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1176                         M_LDRH(d, REG_ITMP1, OFFSET(java_chararray_t, data[0]));
1177                         emit_store_dst(jd, iptr, d);
1178                         break;
1179
1180                 case ICMD_SALOAD:     /* ..., arrayref, index  ==> ..., value         */
1181
1182                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1183                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1184                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1185                         /* implicit null-pointer check */
1186                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1187                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1188                         M_LDRSH(d, REG_ITMP1, OFFSET(java_shortarray_t, data[0]));
1189                         emit_store_dst(jd, iptr, d);
1190                         break;
1191
1192                 case ICMD_IALOAD:     /* ..., arrayref, index  ==> ..., value         */
1193
1194                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1195                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1196                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1197                         /* implicit null-pointer check */
1198                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1199                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1200                         M_ILD_INTERN(d, REG_ITMP1, OFFSET(java_intarray_t, data[0]));
1201                         emit_store_dst(jd, iptr, d);
1202                         break;
1203
1204                 case ICMD_LALOAD:     /* ..., arrayref, index  ==> ..., value         */
1205
1206                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1207                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1208                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1209                         /* implicit null-pointer check */
1210                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1211                         M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1212                         M_LLD_INTERN(d, REG_ITMP3, OFFSET(java_longarray_t, data[0]));
1213                         emit_store_dst(jd, iptr, d);
1214                         break;
1215
1216                 case ICMD_FALOAD:     /* ..., arrayref, index  ==> ..., value         */
1217
1218                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1219                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1220                         /* implicit null-pointer check */
1221                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1222                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1223 #if !defined(ENABLE_SOFTFLOAT)
1224                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1225                         M_FLD_INTERN(d, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1226 #else
1227                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1228                         M_ILD_INTERN(d, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1229 #endif
1230                         emit_store_dst(jd, iptr, d);
1231                         break;
1232
1233                 case ICMD_DALOAD:     /* ..., arrayref, index  ==> ..., value         */
1234
1235                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1236                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1237                         /* implicit null-pointer check */
1238                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1239                         M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1240 #if !defined(ENABLE_SOFTFLOAT)
1241                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1242                         M_DLD_INTERN(d, REG_ITMP3, OFFSET(java_doublearray_t, data[0]));
1243 #else
1244                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1245                         M_LLD_INTERN(d, REG_ITMP3, OFFSET(java_doublearray_t, data[0]));
1246 #endif
1247                         emit_store_dst(jd, iptr, d);
1248                         break;
1249
1250                 case ICMD_AALOAD:     /* ..., arrayref, index  ==> ..., value         */
1251
1252                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1253                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1254                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1255                         /* implicit null-pointer check */
1256                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1257                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1258                         M_LDR_INTERN(d, REG_ITMP1, OFFSET(java_objectarray_t, data[0]));
1259                         emit_store_dst(jd, iptr, d);
1260                         break;
1261
1262                 case ICMD_BASTORE:    /* ..., arrayref, index, value  ==> ...         */
1263
1264                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1265                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1266                         /* implicit null-pointer check */
1267                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1268                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1269                         M_ADD(REG_ITMP1, s1, s2); /* REG_ITMP1 = s1 + 1 * s2 */
1270                         M_STRB(s3, REG_ITMP1, OFFSET(java_bytearray_t, data[0]));
1271                         break;
1272
1273                 case ICMD_CASTORE:    /* ..., arrayref, index, value  ==> ...         */
1274
1275                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1276                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1277                         /* implicit null-pointer check */
1278                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1279                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1280                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1281                         M_STRH(s3, REG_ITMP1, OFFSET(java_chararray_t, data[0]));
1282                         break;
1283
1284                 case ICMD_SASTORE:    /* ..., arrayref, index, value  ==> ...         */
1285
1286                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1287                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1288                         /* implicit null-pointer check */
1289                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1290                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1291                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1292                         M_STRH(s3, REG_ITMP1, OFFSET(java_shortarray_t, data[0]));
1293                         break;
1294
1295                 case ICMD_IASTORE:    /* ..., arrayref, index, value  ==> ...         */
1296
1297                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1298                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1299                         /* implicit null-pointer check */
1300                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1301                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1302                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1303                         M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_intarray_t, data[0]));
1304                         break;
1305
1306                 case ICMD_LASTORE:    /* ..., arrayref, index, value  ==> ...         */
1307
1308                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1309                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1310                         /* implicit null-pointer check */
1311                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1312                         M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1313                         s3 = emit_load_s3(jd, iptr, REG_ITMP12_PACKED);
1314                         M_LST_INTERN(s3, REG_ITMP3, OFFSET(java_longarray_t, data[0]));
1315                         break;
1316
1317                 case ICMD_FASTORE:    /* ..., arrayref, index, value  ==> ...         */
1318
1319                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1320                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1321                         /* implicit null-pointer check */
1322                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1323                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1324 #if !defined(ENABLE_SOFTFLOAT)
1325                         s3 = emit_load_s3(jd, iptr, REG_FTMP1);
1326                         M_FST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1327 #else
1328                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1329                         M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1330 #endif
1331                         break;
1332
1333                 case ICMD_DASTORE:    /* ..., arrayref, index, value  ==> ...         */
1334
1335                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1336                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1337                         /* implicit null-pointer check */
1338                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1339                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 3)); /* REG_ITMP1 = s1 + 8 * s2 */
1340 #if !defined(ENABLE_SOFTFLOAT)
1341                         s3 = emit_load_s3(jd, iptr, REG_FTMP1);
1342                         M_DST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray_t, data[0]));
1343 #else
1344                         s3 = emit_load_s3(jd, iptr, REG_ITMP23_PACKED);
1345                         M_LST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray_t, data[0]));
1346 #endif
1347                         break;
1348
1349                 case ICMD_AASTORE:    /* ..., arrayref, index, value  ==> ...         */
1350
1351                         s1 = emit_load_s1(jd, iptr, REG_A0);
1352                         s2 = emit_load_s2(jd, iptr, REG_ITMP1);
1353                         s3 = emit_load_s3(jd, iptr, REG_A1);
1354
1355                         /* implicit null-pointer check */
1356                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1357
1358                         /* move arguments to argument registers */
1359                         M_INTMOVE(s1, REG_A0);
1360                         M_INTMOVE(s3, REG_A1);
1361
1362                         /* call builtin function */
1363                         disp = dseg_add_functionptr(cd, BUILTIN_FAST_canstore);
1364                         M_DSEG_BRANCH(disp);
1365
1366                         /* recompute pv */
1367                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
1368                         M_RECOMPUTE_PV(s1);
1369
1370                         /* check resturn value of builtin */
1371                         emit_arraystore_check(cd, iptr);
1372
1373                         /* finally store address into array */
1374                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1375                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1376                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1377                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1378                         M_STR_INTERN(s3, REG_ITMP1, OFFSET(java_objectarray_t, data[0]));
1379                         break;
1380
1381                 case ICMD_GETSTATIC:  /* ...  ==> ..., value                          */
1382
1383                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1384                                 uf        = iptr->sx.s23.s3.uf;
1385                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1386                                 disp      = dseg_add_unique_address(cd, NULL);
1387
1388                                 patcher_add_patch_ref(jd, PATCHER_get_putstatic, uf, disp);
1389                         }
1390                         else {
1391                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1392                                 fieldtype = fi->type;
1393                                 disp      = dseg_add_address(cd, fi->value);
1394
1395                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1396                                         patcher_add_patch_ref(jd, PATCHER_initialize_class,
1397                                                             fi->class, 0);
1398                                 }
1399                         }
1400
1401                         M_DSEG_LOAD(REG_ITMP3, disp);
1402                         switch (fieldtype) {
1403                         case TYPE_INT:
1404 #if defined(ENABLE_SOFTFLOAT)
1405                         case TYPE_FLT:
1406 #endif
1407                         case TYPE_ADR:
1408                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1409                                 M_ILD_INTERN(d, REG_ITMP3, 0);
1410                                 break;
1411                         case TYPE_LNG:
1412 #if defined(ENABLE_SOFTFLOAT)
1413                         case TYPE_DBL:
1414 #endif
1415                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1416                                 M_LLD_INTERN(d, REG_ITMP3, 0);
1417                                 break;
1418 #if !defined(ENABLE_SOFTFLOAT)
1419                         case TYPE_FLT:
1420                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1421                                 M_FLD_INTERN(d, REG_ITMP3, 0);
1422                                 break;
1423                         case TYPE_DBL:
1424                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1425                                 M_DLD_INTERN(d, REG_ITMP3, 0);
1426                                 break;
1427 #endif
1428                         default:
1429                                 assert(0);
1430                         }
1431                         emit_store_dst(jd, iptr, d);
1432                         break;
1433
1434                 case ICMD_PUTSTATIC:  /* ..., value  ==> ...                          */
1435
1436                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1437                                 uf        = iptr->sx.s23.s3.uf;
1438                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1439                                 disp      = dseg_add_unique_address(cd, NULL);
1440
1441                                 patcher_add_patch_ref(jd, PATCHER_get_putstatic, uf, disp);
1442                         }
1443                         else {
1444                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1445                                 fieldtype = fi->type;
1446                                 disp      = dseg_add_address(cd, fi->value);
1447
1448                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1449                                         patcher_add_patch_ref(jd, PATCHER_initialize_class,
1450                                                             fi->class, 0);
1451                                 }
1452                         }
1453
1454                         M_DSEG_LOAD(REG_ITMP3, disp);
1455                         switch (fieldtype) {
1456                         case TYPE_INT:
1457 #if defined(ENABLE_SOFTFLOAT)
1458                         case TYPE_FLT:
1459 #endif
1460                         case TYPE_ADR:
1461                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1462                                 M_IST_INTERN(s1, REG_ITMP3, 0);
1463                                 break;
1464                         case TYPE_LNG:
1465 #if defined(ENABLE_SOFTFLOAT)
1466                         case TYPE_DBL:
1467 #endif
1468                                 s1 = emit_load_s1(jd, iptr, REG_ITMP12_PACKED);
1469                                 M_LST_INTERN(s1, REG_ITMP3, 0);
1470                                 break;
1471 #if !defined(ENABLE_SOFTFLOAT)
1472                         case TYPE_FLT:
1473                                 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1474                                 M_FST_INTERN(s1, REG_ITMP3, 0);
1475                                 break;
1476                         case TYPE_DBL:
1477                                 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1478                                 M_DST_INTERN(s1, REG_ITMP3, 0);
1479                                 break;
1480 #endif
1481                         default:
1482                                 assert(0);
1483                         }
1484                         break;
1485
1486                 case ICMD_GETFIELD:   /* ..., objectref, value  ==> ...               */
1487
1488                         s1 = emit_load_s1(jd, iptr, REG_ITMP3);
1489                         emit_nullpointer_check(cd, iptr, s1);
1490
1491
1492                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1493                                 uf        = iptr->sx.s23.s3.uf;
1494                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1495                                 disp      = 0;
1496                         }
1497                         else {
1498                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1499                                 fieldtype = fi->type;
1500                                 disp      = fi->offset;
1501                         }
1502
1503 #if !defined(ENABLE_SOFTFLOAT)
1504                         /* HACK: softnull checks on floats */
1505                         if (!INSTRUCTION_MUST_CHECK(iptr) && IS_FLT_DBL_TYPE(fieldtype))
1506                                 emit_nullpointer_check_force(cd, iptr, s1);
1507 #endif
1508
1509                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1510                                 /* XXX REMOVE ME */
1511                                 uf = iptr->sx.s23.s3.uf;
1512
1513                                 patcher_add_patch_ref(jd, PATCHER_get_putfield, uf, 0);
1514                         }
1515
1516                         switch (fieldtype) {
1517                         case TYPE_INT:
1518 #if defined(ENABLE_SOFTFLOAT)
1519                         case TYPE_FLT:
1520 #endif
1521                         case TYPE_ADR:
1522                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1523                                 M_ILD(d, s1, disp);
1524                                 break;
1525                         case TYPE_LNG:
1526 #if defined(ENABLE_SOFTFLOAT)
1527                         case TYPE_DBL:
1528 #endif
1529                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1530                                 M_LLD(d, s1, disp);
1531                                 break;
1532 #if !defined(ENABLE_SOFTFLOAT)
1533                         case TYPE_FLT:
1534                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1535                                 M_FLD(d, s1, disp);
1536                                 break;
1537                         case TYPE_DBL:
1538                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1539                                 M_DLD(d, s1, disp);
1540                                 break;
1541 #endif
1542                         default:
1543                                 assert(0);
1544                         }
1545                         emit_store_dst(jd, iptr, d);
1546                         break;
1547
1548                 case ICMD_PUTFIELD:   /* ..., objectref, value  ==> ...               */
1549
1550                         s1 = emit_load_s1(jd, iptr, REG_ITMP3);
1551                         emit_nullpointer_check(cd, iptr, s1);
1552
1553                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1554                                 uf        = iptr->sx.s23.s3.uf;
1555                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1556                                 disp      = 0;
1557                         }
1558                         else {
1559                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1560                                 fieldtype = fi->type;
1561                                 disp      = fi->offset;
1562                         }
1563
1564 #if !defined(ENABLE_SOFTFLOAT)
1565                         /* HACK: softnull checks on floats */
1566                         if (!INSTRUCTION_MUST_CHECK(iptr) && IS_FLT_DBL_TYPE(fieldtype))
1567                                 emit_nullpointer_check_force(cd, iptr, s1);
1568 #endif
1569
1570                         switch (fieldtype) {
1571                         case TYPE_INT:
1572 #if defined(ENABLE_SOFTFLOAT)
1573                         case TYPE_FLT:
1574 #endif
1575                         case TYPE_ADR:
1576                                 s2 = emit_load_s2(jd, iptr, REG_ITMP1);
1577                                 break;
1578 #if defined(ENABLE_SOFTFLOAT)
1579                         case TYPE_DBL: /* fall through */
1580 #endif
1581                         case TYPE_LNG:
1582                                 s2 = emit_load_s2(jd, iptr, REG_ITMP12_PACKED);
1583                                 break;
1584 #if !defined(ENABLE_SOFTFLOAT)
1585                         case TYPE_FLT:
1586                         case TYPE_DBL:
1587                                 s2 = emit_load_s2(jd, iptr, REG_FTMP1);
1588                                 break;
1589 #endif
1590                         default:
1591                                 assert(0);
1592                         }
1593
1594                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1595                                 /* XXX REMOVE ME */
1596                                 uf = iptr->sx.s23.s3.uf;
1597
1598                                 patcher_add_patch_ref(jd, PATCHER_get_putfield, uf, 0);
1599                         }
1600
1601                         switch (fieldtype) {
1602                         case TYPE_INT:
1603 #if defined(ENABLE_SOFTFLOAT)
1604                         case TYPE_FLT:
1605 #endif
1606                         case TYPE_ADR:
1607                                 M_IST(s2, s1, disp);
1608                                 break;
1609                         case TYPE_LNG:
1610 #if defined(ENABLE_SOFTFLOAT)
1611                         case TYPE_DBL:
1612 #endif
1613                                 M_LST(s2, s1, disp);
1614                                 break;
1615 #if !defined(ENABLE_SOFTFLOAT)
1616                         case TYPE_FLT:
1617                                 M_FST(s2, s1, disp);
1618                                 break;
1619                         case TYPE_DBL:
1620                                 M_DST(s2, s1, disp);
1621                                 break;
1622 #endif
1623                         default:
1624                                 assert(0);
1625                         }
1626                         break;
1627
1628
1629                 /* branch operations **************************************************/
1630
1631                 case ICMD_ATHROW:       /* ..., objectref ==> ... (, objectref)       */
1632
1633                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1634                         M_INTMOVE(s1, REG_ITMP1_XPTR);
1635                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1636                                 patcher_add_patch_ref(jd, PATCHER_resolve_class,
1637                                                                         iptr->sx.s23.s2.uc, 0);
1638                         }
1639                         disp = dseg_add_functionptr(cd, asm_handle_exception);
1640                         M_DSEG_LOAD(REG_ITMP3, disp);
1641                         M_MOV(REG_ITMP2_XPC, REG_PC);
1642                         M_MOV(REG_PC, REG_ITMP3);
1643                         M_NOP;              /* nop ensures that XPC is less than the end  */
1644                                             /* of basic block                             */
1645                         break;
1646
1647                 case ICMD_GOTO:         /* ... ==> ...                                */
1648                 case ICMD_RET:
1649
1650                         emit_br(cd, iptr->dst.block);
1651                         break;
1652
1653                 case ICMD_JSR:          /* ... ==> ...                                */
1654
1655                         emit_br(cd, iptr->sx.s23.s3.jsrtarget.block);
1656                         break;
1657
1658                 case ICMD_IFNULL:       /* ..., value ==> ...                         */
1659                 case ICMD_IFNONNULL:
1660
1661                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1662                         M_TEQ_IMM(s1, 0);
1663                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFNULL, BRANCH_OPT_NONE);
1664                         break;
1665
1666                 case ICMD_IFLT:         /* ..., value ==> ...                         */
1667                 case ICMD_IFLE:         /* op1 = target JavaVM pc, val.i = constant   */
1668                 case ICMD_IFGT:
1669                 case ICMD_IFGE:
1670                 case ICMD_IFEQ:
1671                 case ICMD_IFNE:
1672
1673                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1674                         M_COMPARE(s1, iptr->sx.val.i);
1675                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFEQ, BRANCH_OPT_NONE);
1676                         break;
1677
1678                 case ICMD_IF_LEQ:       /* ..., value ==> ...                         */
1679
1680                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1681                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1682                         if (iptr->sx.val.l == 0) {
1683                                 M_ORR_S(s1, s2, REG_ITMP3);
1684                         }
1685                         else {
1686                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1687                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1688                                 M_CMP(s1, REG_ITMP3);*/
1689                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1690                                 M_CMPEQ(s2, REG_ITMP3);
1691                         }
1692                         emit_beq(cd, iptr->dst.block);
1693                         break;
1694
1695                 case ICMD_IF_LLT:       /* ..., value ==> ...                         */
1696
1697                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1698                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1699                         if (iptr->sx.val.l == 0) {
1700                                 /* if high word is less than zero, the whole long is too */
1701                                 M_CMP_IMM(s1, 0);
1702                                 emit_blt(cd, iptr->dst.block);
1703                         }
1704                         else {
1705                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1706                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1707                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1708                                 M_CMP(s1, REG_ITMP3);*/
1709                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1710                                 M_MOVGT_IMM(2, REG_ITMP1);
1711                                 M_MOVEQ_IMM(1, REG_ITMP1);
1712
1713                                 /* low compare: x=x-1(ifLO) */
1714                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1715                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1716                                 M_CMP(s2, REG_ITMP3);*/
1717                                 M_SUBLO_IMM(REG_ITMP1, REG_ITMP1, 1);
1718
1719                                 /* branch if (x LT 1) */
1720                                 M_CMP_IMM(REG_ITMP1, 1);
1721                                 emit_blt(cd, iptr->dst.block);
1722                         }
1723                         break;
1724
1725                 case ICMD_IF_LLE:       /* ..., value ==> ...                         */
1726
1727                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1728                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1729                         if (iptr->sx.val.l == 0) {
1730                                 /* if high word is less than zero, the whole long is too  */
1731                                 M_CMP_IMM(s1, 0);
1732                                 emit_blt(cd, iptr->dst.block);
1733
1734                                 /* ... otherwise the low word has to be zero (tricky!) */
1735                                 M_CMPEQ_IMM(s2, 0);
1736                                 emit_beq(cd, iptr->dst.block);
1737                         }
1738                         else {
1739                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1740                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1741                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1742                                 M_CMP(s1, REG_ITMP3);*/
1743                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1744                                 M_MOVGT_IMM(2, REG_ITMP1);
1745                                 M_MOVEQ_IMM(1, REG_ITMP1);
1746
1747                                 /* low compare: x=x+1(ifHI) */
1748                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1749                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1750                                 M_CMP(s2, REG_ITMP3);*/
1751                                 M_ADDHI_IMM(REG_ITMP1, REG_ITMP1, 1);
1752
1753                                 /* branch if (x LE 1) */
1754                                 M_CMP_IMM(REG_ITMP1, 1);
1755                                 emit_ble(cd, iptr->dst.block);
1756                         }
1757                         break;
1758
1759                 case ICMD_IF_LGE:       /* ..., value ==> ...                         */
1760
1761                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1762                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1763                         if (iptr->sx.val.l == 0) {
1764                                 /* if high word is greater or equal zero, the whole long is too */
1765                                 M_CMP_IMM(s1, 0);
1766                                 emit_bge(cd, iptr->dst.block);
1767                         }
1768                         else {
1769                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1770                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1771                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1772                                 M_CMP(s1, REG_ITMP3);*/
1773                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1774                                 M_MOVGT_IMM(2, REG_ITMP1);
1775                                 M_MOVEQ_IMM(1, REG_ITMP1);
1776
1777                                 /* low compare: x=x-1(ifLO) */
1778                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1779                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1780                                 M_CMP(s2, REG_ITMP3);*/
1781                                 M_SUBLO_IMM(REG_ITMP1, REG_ITMP1, 1);
1782
1783                                 /* branch if (x GE 1) */
1784                                 M_CMP_IMM(REG_ITMP1, 1);
1785                                 emit_bge(cd, iptr->dst.block);
1786                         }
1787                         break;
1788
1789                 case ICMD_IF_LGT:       /* ..., value ==> ...                         */
1790
1791                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1792                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1793 #if 0
1794                         if (iptr->sx.val.l == 0) {
1795                                 /* if high word is greater than zero, the whole long is too */
1796                                 M_CMP_IMM(s1, 0);
1797                                 M_BGT(0);
1798                                 codegen_add_branch_ref(cd, iptr->dst.block);
1799
1800                                 /* ... or high was zero and low is non zero (tricky!) */
1801                                 M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1802                                 M_MOVLT_IMM(1, REG_ITMP3);
1803                                 M_ORR_S(REG_ITMP3, s2, REG_ITMP3);
1804                                 M_BNE(0);
1805                                 codegen_add_branch_ref(cd, iptr->dst.block);
1806                         }
1807                         else {
1808 #endif
1809                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1810                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1811                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1812                                 M_CMP(s1, REG_ITMP3);*/
1813                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1814                                 M_MOVGT_IMM(2, REG_ITMP1);
1815                                 M_MOVEQ_IMM(1, REG_ITMP1);
1816
1817                                 /* low compare: x=x+1(ifHI) */
1818                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1819                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1820                                 M_CMP(s2, REG_ITMP3);*/
1821                                 M_ADDHI_IMM(REG_ITMP1, REG_ITMP1, 1);
1822
1823                                 /* branch if (x GT 1) */
1824                                 M_CMP_IMM(REG_ITMP1, 1);
1825                                 emit_bgt(cd, iptr->dst.block);
1826 #if 0
1827                         }
1828 #endif
1829                         break;
1830
1831                 case ICMD_IF_LNE:       /* ..., value ==> ...                         */
1832
1833                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1834                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1835                         if (iptr->sx.val.l == 0) {
1836                                 M_ORR_S(s1, s2, REG_ITMP3);
1837                         }
1838                         else {
1839                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1840                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1841                                 M_CMP(s1, REG_ITMP3);*/
1842                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1843                                 M_CMPEQ(s2, REG_ITMP3);
1844                         }
1845                         emit_bne(cd, iptr->dst.block);
1846                         break;
1847
1848                 case ICMD_IF_ICMPEQ:    /* ..., value, value ==> ...                  */
1849                 case ICMD_IF_ICMPNE:
1850                 case ICMD_IF_ICMPLT:
1851                 case ICMD_IF_ICMPLE:
1852                 case ICMD_IF_ICMPGT:
1853                 case ICMD_IF_ICMPGE:
1854
1855                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1856                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1857                         M_CMP(s1, s2);
1858                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IF_ICMPEQ, BRANCH_OPT_NONE);
1859                         break;
1860
1861                 case ICMD_IF_ACMPEQ:    /* ..., value, value ==> ...                  */
1862                 case ICMD_IF_ACMPNE:
1863
1864                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1865                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1866                         M_CMP(s1, s2);
1867                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IF_ACMPEQ, BRANCH_OPT_NONE);
1868                         break;
1869
1870                 case ICMD_IF_LCMPEQ:    /* ..., value, value ==> ...                  */
1871                                         /* op1 = target JavaVM pc                     */
1872
1873                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1874                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1875                         M_CMP(s1, s2);
1876
1877                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1878                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1879                         M_CMPEQ(s1, s2);
1880
1881                         emit_beq(cd, iptr->dst.block);
1882                         break;
1883
1884                 case ICMD_IF_LCMPNE:    /* ..., value, value ==> ...                  */
1885                                         /* op1 = target JavaVM pc                     */
1886
1887                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1888                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1889                         M_CMP(s1, s2);
1890
1891                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1892                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1893                         M_CMPEQ(s1, s2);
1894
1895                         emit_bne(cd, iptr->dst.block);
1896                         break;
1897
1898                 case ICMD_IF_LCMPLT:    /* ..., value, value ==> ...                  */
1899                                         /* op1 = target JavaVM pc                     */
1900
1901                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1902                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1903                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1904                         M_CMP(s1, s2);
1905                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1906                         M_MOVGT_IMM(2, REG_ITMP3);
1907                         M_MOVEQ_IMM(1, REG_ITMP3);
1908
1909                         /* low compare: x=x-1(ifLO) */
1910                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1911                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1912                         M_CMP(s1, s2);
1913                         M_SUBLO_IMM(REG_ITMP3, REG_ITMP3, 1);
1914
1915                         /* branch if (x LT 1) */
1916                         M_CMP_IMM(REG_ITMP3, 1);
1917                         emit_blt(cd, iptr->dst.block);
1918                         break;
1919
1920                 case ICMD_IF_LCMPLE:    /* ..., value, value ==> ...                  */
1921                                         /* op1 = target JavaVM pc                     */
1922
1923                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1924                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1925                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1926                         M_CMP(s1, s2);
1927                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1928                         M_MOVGT_IMM(2, REG_ITMP3);
1929                         M_MOVEQ_IMM(1, REG_ITMP3);
1930
1931                         /* low compare: x=x-1(ifLO) */
1932                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1933                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1934                         M_CMP(s1, s2);
1935                         M_ADDHI_IMM(REG_ITMP3, REG_ITMP3, 1);
1936
1937                         /* branch if (x LE 1) */
1938                         M_CMP_IMM(REG_ITMP3, 1);
1939                         emit_ble(cd, iptr->dst.block);
1940                         break;
1941
1942                 case ICMD_IF_LCMPGT:    /* ..., value, value ==> ...                  */
1943                                         /* op1 = target JavaVM pc                     */
1944
1945                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1946                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1947                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1948                         M_CMP(s1, s2);
1949                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1950                         M_MOVGT_IMM(2, REG_ITMP3);
1951                         M_MOVEQ_IMM(1, REG_ITMP3);
1952
1953                         /* low compare: x=x-1(ifLO) */
1954                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1955                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1956                         M_CMP(s1, s2);
1957                         M_ADDHI_IMM(REG_ITMP3, REG_ITMP3, 1);
1958
1959                         /* branch if (x GT 1) */
1960                         M_CMP_IMM(REG_ITMP3, 1);
1961                         emit_bgt(cd, iptr->dst.block);
1962                         break;
1963
1964                 case ICMD_IF_LCMPGE:    /* ..., value, value ==> ...                  */
1965                                         /* op1 = target JavaVM pc                     */
1966
1967                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1968                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1969                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1970                         M_CMP(s1, s2);
1971                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1972                         M_MOVGT_IMM(2, REG_ITMP3);
1973                         M_MOVEQ_IMM(1, REG_ITMP3);
1974
1975                         /* low compare: x=x-1(ifLO) */
1976                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1977                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1978                         M_CMP(s1, s2);
1979                         M_SUBLO_IMM(REG_ITMP3, REG_ITMP3, 1);
1980
1981                         /* branch if (x GE 1) */
1982                         M_CMP_IMM(REG_ITMP3, 1);
1983                         emit_bge(cd, iptr->dst.block);
1984                         break;
1985
1986                 case ICMD_TABLESWITCH:  /* ..., index ==> ...                         */
1987                         {
1988                         s4 i, l;
1989                         branch_target_t *table;
1990
1991                         table = iptr->dst.table;
1992
1993                         l = iptr->sx.s23.s2.tablelow;
1994                         i = iptr->sx.s23.s3.tablehigh;
1995
1996                         /* calculate new index (index - low) */
1997                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1998                         if (l  == 0) {
1999                                 M_INTMOVE(s1, REG_ITMP1);
2000                         } else if (IS_IMM(l)) {
2001                                 M_SUB_IMM(REG_ITMP1, s1, l);
2002                         } else {
2003                                 ICONST(REG_ITMP2, l);
2004                                 M_SUB(REG_ITMP1, s1, REG_ITMP2);
2005                         }
2006
2007                         /* range check (index <= high-low) */
2008                         i = i - l + 1;
2009                         M_COMPARE(REG_ITMP1, i-1);
2010                         emit_bugt(cd, table[0].block);
2011
2012                         /* build jump table top down and use address of lowest entry */
2013
2014                         table += i;
2015
2016                         while (--i >= 0) {
2017                                 dseg_add_target(cd, table->block);
2018                                 --table;
2019                         }
2020                         }
2021
2022                         /* length of dataseg after last dseg_add_target is used by load */
2023                         /* TODO: this loads from data-segment */
2024                         M_ADD(REG_ITMP2, REG_PV, REG_LSL(REG_ITMP1, 2));
2025                         M_LDR(REG_PC, REG_ITMP2, -(cd->dseglen));
2026                         break;
2027
2028                 case ICMD_LOOKUPSWITCH: /* ..., key ==> ...                           */
2029                         {
2030                         s4 i;
2031                         lookup_target_t *lookup;
2032
2033                         lookup = iptr->dst.lookup;
2034
2035                         i = iptr->sx.s23.s2.lookupcount;
2036
2037                         /* compare keys */
2038                         MCODECHECK((i<<2)+8);
2039                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2040
2041                         while (--i >= 0) {
2042                                 M_COMPARE(s1, lookup->value);
2043                                 emit_beq(cd, lookup->target.block);
2044                                 lookup++;
2045                         }
2046
2047                         /* default branch */
2048                         emit_br(cd, iptr->sx.s23.s3.lookupdefault.block);
2049                         }
2050                         break;
2051
2052                 case ICMD_FRETURN:      /* ..., retvalue ==> ...                      */
2053
2054 #if !defined(ENABLE_SOFTFLOAT)
2055                         REPLACEMENT_POINT_RETURN(cd, iptr);
2056                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
2057                         M_CAST_F2I(s1, REG_RESULT);
2058                         goto ICMD_RETURN_do;
2059 #endif
2060
2061                 case ICMD_IRETURN:      /* ..., retvalue ==> ...                      */
2062
2063                         REPLACEMENT_POINT_RETURN(cd, iptr);
2064                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2065                         M_INTMOVE(s1, REG_RESULT);
2066                         goto ICMD_RETURN_do;
2067
2068                 case ICMD_DRETURN:      /* ..., retvalue ==> ...                      */
2069
2070 #if !defined(ENABLE_SOFTFLOAT)
2071                         REPLACEMENT_POINT_RETURN(cd, iptr);
2072                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
2073                         M_CAST_D2L(s1, REG_RESULT_PACKED);
2074                         goto ICMD_RETURN_do;
2075 #endif
2076
2077                 case ICMD_LRETURN:      /* ..., retvalue ==> ...                      */
2078
2079                         REPLACEMENT_POINT_RETURN(cd, iptr);
2080                         s1 = emit_load_s1(jd, iptr, REG_RESULT_PACKED);
2081                         M_LNGMOVE(s1, REG_RESULT_PACKED);
2082                         goto ICMD_RETURN_do;
2083
2084                 case ICMD_ARETURN:      /* ..., retvalue ==> ...                      */
2085
2086                         REPLACEMENT_POINT_RETURN(cd, iptr);
2087                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2088                         M_INTMOVE(s1, REG_RESULT);
2089                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2090                                 patcher_add_patch_ref(jd, PATCHER_resolve_class,
2091                                                                         iptr->sx.s23.s2.uc, 0);
2092                         }
2093                         goto ICMD_RETURN_do;
2094
2095                 case ICMD_RETURN:       /* ...  ==> ...                               */
2096
2097                         REPLACEMENT_POINT_RETURN(cd, iptr);
2098                         ICMD_RETURN_do:
2099
2100 #if !defined(NDEBUG)
2101                         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
2102                                 emit_verbosecall_exit(jd);
2103 #endif
2104
2105 #if defined(ENABLE_THREADS)
2106                         /* call monitorexit function */
2107
2108                         if (checksync && code_is_synchronized(code)) {
2109                                 /* stack offset for monitor argument */
2110
2111                                 s1 = rd->memuse * 8;
2112
2113                                 /* we need to save the proper return value */
2114
2115                                 switch (iptr->opc) {
2116                                 case ICMD_IRETURN:
2117                                 case ICMD_ARETURN:
2118                                 case ICMD_LRETURN:
2119                                 case ICMD_FRETURN: /* XXX TWISTI: is that correct? */
2120                                 case ICMD_DRETURN:
2121                                         M_STMFD(BITMASK_RESULT, REG_SP);
2122                                         s1 += 2 * 4;
2123                                         break;
2124                                 }
2125
2126                                 M_LDR(REG_A0, REG_SP, s1);
2127                                 disp = dseg_add_functionptr(cd, LOCK_monitor_exit);
2128                                 M_DSEG_BRANCH(disp);
2129
2130                                 /* we no longer need PV here, no more loading */
2131                                 /*s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2132                                 M_RECOMPUTE_PV(s1);*/
2133
2134                                 switch (iptr->opc) {
2135                                 case ICMD_IRETURN:
2136                                 case ICMD_ARETURN:
2137                                 case ICMD_LRETURN:
2138                                 case ICMD_FRETURN: /* XXX TWISTI: is that correct? */
2139                                 case ICMD_DRETURN:
2140                                         M_LDMFD(BITMASK_RESULT, REG_SP);
2141                                         break;
2142                                 }
2143                         }
2144 #endif
2145
2146                         /* deallocate stackframe for spilled variables */
2147
2148                         if ((cd->stackframesize / 4 - savedregs_num) > 0)
2149                                 M_ADD_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - savedregs_num);
2150
2151                         /* restore callee saved registers + do return */
2152
2153                         if (savedregs_bitmask) {
2154                                 if (!code_is_leafmethod(code)) {
2155                                         savedregs_bitmask &= ~(1<<REG_LR);
2156                                         savedregs_bitmask |= (1<<REG_PC);
2157                                 }
2158                                 M_LDMFD(savedregs_bitmask, REG_SP);
2159                         }
2160
2161                         /* if LR was not on stack, we need to return manually */
2162
2163                         if (code_is_leafmethod(code))
2164                                 M_MOV(REG_PC, REG_LR);
2165                         break;
2166
2167                 case ICMD_BUILTIN:      /* ..., arg1, arg2, arg3 ==> ...              */
2168
2169                         bte = iptr->sx.s23.s3.bte;
2170                         md  = bte->md;
2171                         goto ICMD_INVOKE_do;
2172
2173                 case ICMD_INVOKESTATIC: /* ..., [arg1, [arg2 ...]] ==> ...            */
2174                 case ICMD_INVOKESPECIAL:/* ..., objectref, [arg1, [arg2 ...]] ==> ... */
2175                 case ICMD_INVOKEVIRTUAL:/* op1 = arg count, val.a = method pointer    */
2176                 case ICMD_INVOKEINTERFACE:
2177
2178                         REPLACEMENT_POINT_INVOKE(cd, iptr);
2179
2180                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2181                                 lm = NULL;
2182                                 um = iptr->sx.s23.s3.um;
2183                                 md = um->methodref->parseddesc.md;
2184                         }
2185                         else {
2186                                 lm = iptr->sx.s23.s3.fmiref->p.method;
2187                                 um = NULL;
2188                                 md = lm->parseddesc;
2189                         }
2190
2191                 ICMD_INVOKE_do:
2192                         /* copy arguments to registers or stack location */
2193
2194                         s3 = md->paramcount;
2195
2196                         MCODECHECK((s3 << 1) + 64);
2197
2198                         for (s3 = s3 - 1; s3 >= 0; s3--) {
2199                                 var = VAR(iptr->sx.s23.s2.args[s3]);
2200                                 d   = md->params[s3].regoff;
2201
2202                                 if (var->flags & PREALLOC) /* argument was precolored? */
2203                                         continue;
2204
2205                                 /* TODO: document me */
2206 #if !defined(ENABLE_SOFTFLOAT)
2207                                 if (IS_INT_LNG_TYPE(var->type)) {
2208 #endif /* !defined(ENABLE_SOFTFLOAT) */
2209                                         if (!md->params[s3].inmemory) {
2210                                                 s1 = emit_load(jd, iptr, var, d);
2211
2212                                                 if (IS_2_WORD_TYPE(var->type))
2213                                                         M_LNGMOVE(s1, d);
2214                                                 else
2215                                                         M_INTMOVE(s1, d);
2216                                         }
2217                                         else {
2218                                                 if (IS_2_WORD_TYPE(var->type)) {
2219                                                         s1 = emit_load(jd, iptr, var, REG_ITMP12_PACKED);
2220                                                         M_LST(s1, REG_SP, d);
2221                                                 }
2222                                                 else {
2223                                                         s1 = emit_load(jd, iptr, var, REG_ITMP1);
2224                                                         M_IST(s1, REG_SP, d);
2225                                                 }
2226                                         }
2227 #if !defined(ENABLE_SOFTFLOAT)
2228                                 }
2229                                 else {
2230                                         if (!md->params[s3].inmemory) {
2231                                                 s1 = emit_load(jd, iptr, var, REG_FTMP1);
2232                                                 if (IS_2_WORD_TYPE(var->type))
2233                                                         M_CAST_D2L(s1, d);
2234                                                 else
2235                                                         M_CAST_F2I(s1, d);
2236                                         }
2237                                         else {
2238                                                 s1 = emit_load(jd, iptr, var, REG_FTMP1);
2239                                                 if (IS_2_WORD_TYPE(var->type))
2240                                                         M_DST(s1, REG_SP, d);
2241                                                 else
2242                                                         M_FST(s1, REG_SP, d);
2243                                         }
2244                                 }
2245 #endif /* !defined(ENABLE_SOFTFLOAT) */
2246                         }
2247
2248                         switch (iptr->opc) {
2249                         case ICMD_BUILTIN:
2250
2251                                 if (bte->stub == NULL) {
2252                                         disp = dseg_add_functionptr(cd, bte->fp);
2253                                 } else {
2254                                         disp = dseg_add_functionptr(cd, bte->stub);
2255                                 }
2256
2257                                 M_DSEG_LOAD(REG_PV, disp); /* pointer to built-in-function */
2258
2259                                 /* generate the actual call */
2260
2261                                 M_MOV(REG_LR, REG_PC);
2262                                 M_MOV(REG_PC, REG_PV);
2263                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2264                                 M_RECOMPUTE_PV(s1);
2265                                 break;
2266
2267                         case ICMD_INVOKESPECIAL:
2268                                 emit_nullpointer_check(cd, iptr, REG_A0);
2269                                 /* fall through */
2270
2271                         case ICMD_INVOKESTATIC:
2272                                 if (lm == NULL) {
2273                                         disp = dseg_add_unique_address(cd, NULL);
2274
2275                                         patcher_add_patch_ref(jd, PATCHER_invokestatic_special,
2276                                                                                 um, disp);
2277                                 }
2278                                 else
2279                                         disp = dseg_add_address(cd, lm->stubroutine);
2280
2281                                 M_DSEG_LOAD(REG_PV, disp);            /* Pointer to method */
2282
2283                                 /* generate the actual call */
2284
2285                                 M_MOV(REG_LR, REG_PC);
2286                                 M_MOV(REG_PC, REG_PV);
2287                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2288                                 M_RECOMPUTE_PV(s1);
2289                                 break;
2290
2291                         case ICMD_INVOKEVIRTUAL:
2292                                 if (lm == NULL) {
2293                                         patcher_add_patch_ref(jd, PATCHER_invokevirtual, um, 0);
2294
2295                                         s1 = 0;
2296                                 }
2297                                 else
2298                                         s1 = OFFSET(vftbl_t, table[0]) +
2299                                                 sizeof(methodptr) * lm->vftblindex;
2300
2301                                 /* implicit null-pointer check */
2302                                 M_LDR_INTERN(REG_METHODPTR, REG_A0,
2303                                                          OFFSET(java_object_t, vftbl));
2304                                 M_LDR_INTERN(REG_PV, REG_METHODPTR, s1);
2305
2306                                 /* generate the actual call */
2307
2308                                 M_MOV(REG_LR, REG_PC);
2309                                 M_MOV(REG_PC, REG_PV);
2310                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2311                                 M_RECOMPUTE_PV(s1);
2312                                 break;
2313
2314                         case ICMD_INVOKEINTERFACE:
2315                                 if (lm == NULL) {
2316                                         patcher_add_patch_ref(jd, PATCHER_invokeinterface, um, 0);
2317
2318                                         s1 = 0;
2319                                         s2 = 0;
2320                                 }
2321                                 else {
2322                                         s1 = OFFSET(vftbl_t, interfacetable[0]) -
2323                                                 sizeof(methodptr*) * lm->class->index;
2324                                         s2 = sizeof(methodptr) * (lm - lm->class->methods);
2325                                 }
2326
2327                                 /* implicit null-pointer check */
2328                                 M_LDR_INTERN(REG_METHODPTR, REG_A0,
2329                                                          OFFSET(java_object_t, vftbl));
2330                                 M_LDR_INTERN(REG_METHODPTR, REG_METHODPTR, s1);
2331                                 M_LDR_INTERN(REG_PV, REG_METHODPTR, s2);
2332
2333                                 /* generate the actual call */
2334
2335                                 M_MOV(REG_LR, REG_PC);
2336                                 M_MOV(REG_PC, REG_PV);
2337                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2338                                 M_RECOMPUTE_PV(s1);
2339                                 break;
2340                         }
2341
2342                         /* store size of call code in replacement point */
2343                         REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2344
2345                         /* store return value */
2346
2347                         d = md->returntype.type;
2348
2349 #if !defined(__SOFTFP__)
2350                         /* TODO: this is only a hack, since we use R0/R1 for float
2351                            return!  this depends on gcc; it is independent from
2352                            our ENABLE_SOFTFLOAT define */
2353                         if (iptr->opc == ICMD_BUILTIN && d != TYPE_VOID && IS_FLT_DBL_TYPE(d)) {
2354 #if 0 && !defined(NDEBUG)
2355                                 dolog("BUILTIN that returns float or double (%s.%s)", m->class->name->text, m->name->text);
2356 #endif
2357                                 /* we cannot use this macro, since it is not defined
2358                                    in ENABLE_SOFTFLOAT M_CAST_FLT_TO_INT_TYPED(d,
2359                                    REG_FRESULT, REG_RESULT_TYPED(d)); */
2360                                 if (IS_2_WORD_TYPE(d)) {
2361                                         DCD(0xed2d8102); /* stfd    f0, [sp, #-8]! */
2362                                         M_LDRD_UPDATE(REG_RESULT_PACKED, REG_SP, 8);
2363                                 } else {
2364                                         DCD(0xed2d0101); /* stfs    f0, [sp, #-4]!*/
2365                                         M_LDR_UPDATE(REG_RESULT, REG_SP, 4);
2366                                 }
2367                         }
2368 #endif
2369
2370                         if (d != TYPE_VOID) {
2371 #if !defined(ENABLE_SOFTFLOAT)
2372                                 if (IS_INT_LNG_TYPE(d)) {
2373 #endif /* !defined(ENABLE_SOFTFLOAT) */
2374                                         if (IS_2_WORD_TYPE(d)) {
2375                                                 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
2376                                                 M_LNGMOVE(REG_RESULT_PACKED, s1);
2377                                         }
2378                                         else {
2379                                                 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2380                                                 M_INTMOVE(REG_RESULT, s1);
2381                                         }
2382
2383 #if !defined(ENABLE_SOFTFLOAT)
2384                                 } else {
2385                                         s1 = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
2386                                         if (IS_2_WORD_TYPE(d))
2387                                                 M_CAST_L2D(REG_RESULT_PACKED, s1);
2388                                         else
2389                                                 M_CAST_I2F(REG_RESULT, s1);
2390                                 }
2391 #endif /* !defined(ENABLE_SOFTFLOAT) */
2392
2393                                 emit_store_dst(jd, iptr, s1);
2394                         }
2395                         break;
2396
2397                 case ICMD_CHECKCAST:  /* ..., objectref ==> ..., objectref            */
2398
2399                         if (!(iptr->flags.bits & INS_FLAG_ARRAY)) {
2400                                 /* object type cast-check */
2401
2402                         classinfo *super;
2403                         s4         superindex;
2404
2405                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2406                                 super      = NULL;
2407                                 superindex = 0;
2408                         }
2409                         else {
2410                                 super      = iptr->sx.s23.s3.c.cls;
2411                                 superindex = super->index;
2412                         }
2413
2414                                 if ((super == NULL) || !(super->flags & ACC_INTERFACE))
2415                                         CODEGEN_CRITICAL_SECTION_NEW;
2416
2417                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2418
2419                         /* if class is not resolved, check which code to call */
2420
2421                         if (super == NULL) {
2422                                 M_TST(s1, s1);
2423                                 emit_label_beq(cd, BRANCH_LABEL_1);
2424
2425                                 disp = dseg_add_unique_s4(cd, 0); /* super->flags */
2426                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_flags,
2427                                                     iptr->sx.s23.s3.c.ref, disp);
2428
2429                                 M_DSEG_LOAD(REG_ITMP2, disp);
2430                                 disp = dseg_add_s4(cd, ACC_INTERFACE);
2431                                 M_DSEG_LOAD(REG_ITMP3, disp);
2432                                 M_TST(REG_ITMP2, REG_ITMP3);
2433                                 emit_label_beq(cd, BRANCH_LABEL_2);
2434                         }
2435
2436                         /* interface checkcast code */
2437
2438                         if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2439                                 if ((super == NULL) || !IS_IMM(superindex)) {
2440                                         disp = dseg_add_unique_s4(cd, superindex);
2441                                 }
2442                                 if (super == NULL) {
2443                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_index,
2444                                                             iptr->sx.s23.s3.c.ref, disp);
2445                                 }
2446                                 else {
2447                                         M_TST(s1, s1);
2448                                         emit_label_beq(cd, BRANCH_LABEL_3);
2449                                 }
2450
2451                                 M_LDR_INTERN(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
2452                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, interfacetablelength));
2453
2454                                 /* we put unresolved or non-immediate superindices onto dseg */
2455                                 if ((super == NULL) || !IS_IMM(superindex)) {
2456                                         /* disp was computed before we added the patcher */
2457                                         M_DSEG_LOAD(REG_ITMP2, disp);
2458                                         M_CMP(REG_ITMP3, REG_ITMP2);
2459                                 } else {
2460                                         assert(IS_IMM(superindex));
2461                                         M_CMP_IMM(REG_ITMP3, superindex);
2462                                 }
2463
2464                                 emit_classcast_check(cd, iptr, BRANCH_LE, REG_ITMP3, s1);
2465
2466                                 /* if we loaded the superindex out of the dseg above, we do
2467                                    things differently here! */
2468                                 if ((super == NULL) || !IS_IMM(superindex)) {
2469
2470                                         M_LDR_INTERN(REG_ITMP3, s1, OFFSET(java_object_t, vftbl));
2471
2472                                         /* this assumes something */
2473                                         assert(OFFSET(vftbl_t, interfacetable[0]) == 0);
2474
2475                                         /* this does: REG_ITMP3 - superindex * sizeof(methodptr*) */
2476                                         assert(sizeof(methodptr*) == 4);
2477                                         M_SUB(REG_ITMP2, REG_ITMP3, REG_LSL(REG_ITMP2, 2));
2478
2479                                         s2 = 0;
2480
2481                                 } else {
2482
2483                                         s2 = OFFSET(vftbl_t, interfacetable[0]) -
2484                                                                 superindex * sizeof(methodptr*);
2485
2486                                 }
2487
2488                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, s2);
2489                                 M_TST(REG_ITMP3, REG_ITMP3);
2490                                 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_ITMP3, s1);
2491
2492                                 if (super == NULL)
2493                                         emit_label_br(cd, BRANCH_LABEL_4);
2494                                 else
2495                                         emit_label(cd, BRANCH_LABEL_3);
2496                         }
2497
2498                         /* class checkcast code */
2499
2500                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2501                                 if (super == NULL) {
2502                                         emit_label(cd, BRANCH_LABEL_2);
2503
2504                                         disp = dseg_add_unique_address(cd, NULL);
2505
2506                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_vftbl,
2507                                                             iptr->sx.s23.s3.c.ref,
2508                                                                                 disp);
2509                                 }
2510                                 else {
2511                                         disp = dseg_add_address(cd, super->vftbl);
2512
2513                                         M_TST(s1, s1);
2514                                         emit_label_beq(cd, BRANCH_LABEL_5);
2515                                 }
2516
2517                                 M_LDR_INTERN(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
2518                                 M_DSEG_LOAD(REG_ITMP3, disp);
2519
2520                                 CODEGEN_CRITICAL_SECTION_START;
2521
2522                                 M_LDR_INTERN(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, baseval));
2523                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, baseval));
2524                                 M_SUB(REG_ITMP2, REG_ITMP2, REG_ITMP3);
2525                                 M_DSEG_LOAD(REG_ITMP3, disp);
2526                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, diffval));
2527
2528                                 CODEGEN_CRITICAL_SECTION_END;
2529
2530                                 M_CMP(REG_ITMP2, REG_ITMP3);
2531                                 emit_classcast_check(cd, iptr, BRANCH_UGT, 0, s1);
2532
2533                                 if (super != NULL)
2534                                         emit_label(cd, BRANCH_LABEL_5);
2535                         }
2536
2537                         if (super == NULL) {
2538                                 emit_label(cd, BRANCH_LABEL_1);
2539                                 emit_label(cd, BRANCH_LABEL_4);
2540                         }
2541
2542                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
2543                         }
2544                         else {
2545                                 /* array type cast-check */
2546
2547                                 s1 = emit_load_s1(jd, iptr, REG_A0);
2548                                 M_INTMOVE(s1, REG_A0);
2549
2550                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2551                                         disp = dseg_add_unique_address(cd, NULL);
2552
2553                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
2554                                                                                 iptr->sx.s23.s3.c.ref,
2555                                                                                 disp);
2556                                 }
2557                                 else
2558                                         disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2559
2560                                 M_DSEG_LOAD(REG_A1, disp);
2561                                 disp = dseg_add_functionptr(cd, BUILTIN_arraycheckcast);
2562                                 M_DSEG_BRANCH(disp);
2563
2564                                 /* recompute pv */
2565                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2566                                 M_RECOMPUTE_PV(disp);
2567
2568                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2569                                 M_TST(REG_RESULT, REG_RESULT);
2570                                 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_RESULT, s1);
2571
2572                                 d = codegen_reg_of_dst(jd, iptr, s1);
2573                         }
2574
2575                         M_INTMOVE(s1, d);
2576                         emit_store_dst(jd, iptr, d);
2577                         break;
2578
2579                 case ICMD_INSTANCEOF: /* ..., objectref ==> ..., intresult            */
2580
2581                         {
2582                         classinfo *super;
2583                         s4         superindex;
2584
2585                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2586                                 super      = NULL;
2587                                 superindex = 0;
2588                         }
2589                         else {
2590                                 super      = iptr->sx.s23.s3.c.cls;
2591                                 superindex = super->index;
2592                         }
2593
2594                         if ((super == NULL) || !(super->flags & ACC_INTERFACE))
2595                                 CODEGEN_CRITICAL_SECTION_NEW;
2596
2597                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2598                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
2599
2600                         if (s1 == d) {
2601                                 M_MOV(REG_ITMP1, s1);
2602                                 s1 = REG_ITMP1;
2603                         }
2604
2605                         /* if class is not resolved, check which code to call */
2606
2607                         if (super == NULL) {
2608                                 M_EOR(d, d, d);
2609
2610                                 M_TST(s1, s1);
2611                                 emit_label_beq(cd, BRANCH_LABEL_1);
2612
2613                                 disp = dseg_add_unique_s4(cd, 0); /* super->flags */
2614                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_flags,
2615                                                     iptr->sx.s23.s3.c.ref, disp);
2616
2617                                 M_DSEG_LOAD(REG_ITMP2, disp);
2618                                 disp = dseg_add_s4(cd, ACC_INTERFACE);
2619                                 M_DSEG_LOAD(REG_ITMP3, disp);
2620                                 M_TST(REG_ITMP2, REG_ITMP3);
2621                                 emit_label_beq(cd, BRANCH_LABEL_2);
2622                         }
2623
2624                         /* interface checkcast code */
2625
2626                         if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2627                                 if ((super == NULL) || !IS_IMM(superindex)) {
2628                                         disp = dseg_add_unique_s4(cd, superindex);
2629                                 }
2630                                 if (super == NULL) {
2631                                         /* If d == REG_ITMP2, then it's destroyed in check
2632                                            code above.  */
2633                                         if (d == REG_ITMP2)
2634                                                 M_EOR(d, d, d);
2635
2636                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_index,
2637                                                             iptr->sx.s23.s3.c.ref, disp);
2638                                 }
2639                                 else {
2640                                         M_EOR(d, d, d);
2641                                         M_TST(s1, s1);
2642                                         emit_label_beq(cd, BRANCH_LABEL_3);
2643                                 }
2644
2645                                 M_LDR_INTERN(REG_ITMP1, s1, OFFSET(java_object_t, vftbl));
2646                                 M_LDR_INTERN(REG_ITMP3,
2647                                                          REG_ITMP1, OFFSET(vftbl_t, interfacetablelength));
2648
2649                                 /* we put unresolved or non-immediate superindices onto dseg
2650                                    and do things slightly different */
2651                                 if ((super == NULL) || !IS_IMM(superindex)) {
2652                                         /* disp was computed before we added the patcher */
2653                                         M_DSEG_LOAD(REG_ITMP2, disp);
2654                                         M_CMP(REG_ITMP3, REG_ITMP2);
2655
2656                                         if (d == REG_ITMP2) {
2657                                                 M_EORLE(d, d, d);
2658                                                 M_BLE(4);
2659                                         } else {
2660                                                 M_BLE(3);
2661                                         }
2662
2663                                         /* this assumes something */
2664                                         assert(OFFSET(vftbl_t, interfacetable[0]) == 0);
2665
2666                                         /* this does: REG_ITMP3 - superindex * sizeof(methodptr*) */
2667                                         assert(sizeof(methodptr*) == 4);
2668                                         M_SUB(REG_ITMP1, REG_ITMP1, REG_LSL(REG_ITMP2, 2));
2669
2670                                         if (d == REG_ITMP2) {
2671                                                 M_EOR(d, d, d);
2672                                         }
2673
2674                                         s2 = 0;
2675
2676                                 } else {
2677                                         assert(IS_IMM(superindex));
2678                                         M_CMP_IMM(REG_ITMP3, superindex);
2679
2680                                         M_BLE(2);
2681
2682                                         s2 = OFFSET(vftbl_t, interfacetable[0]) -
2683                                                 superindex * sizeof(methodptr*);
2684
2685                                 }
2686
2687                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP1, s2);
2688                                 M_TST(REG_ITMP3, REG_ITMP3);
2689                                 M_MOVNE_IMM(1, d);
2690
2691                                 if (super == NULL)
2692                                         emit_label_br(cd, BRANCH_LABEL_4);
2693                                 else
2694                                         emit_label(cd, BRANCH_LABEL_3);
2695                         }
2696
2697                         /* class checkcast code */
2698
2699                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2700                                 if (super == NULL) {
2701                                         emit_label(cd, BRANCH_LABEL_2);
2702
2703                                         disp = dseg_add_unique_address(cd, NULL);
2704
2705                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_vftbl,
2706                                                             iptr->sx.s23.s3.c.ref, disp);
2707                                 }
2708                                 else {
2709                                         disp = dseg_add_address(cd, super->vftbl);
2710
2711                                         M_EOR(d, d, d);
2712                                         M_TST(s1, s1);
2713                                         emit_label_beq(cd, BRANCH_LABEL_5);
2714                                 }
2715
2716                                 M_LDR_INTERN(REG_ITMP1, s1, OFFSET(java_object_t, vftbl));
2717                                 M_DSEG_LOAD(REG_ITMP2, disp);
2718
2719                                 CODEGEN_CRITICAL_SECTION_START;
2720
2721                                 M_LDR_INTERN(REG_ITMP1, REG_ITMP1, OFFSET(vftbl_t, baseval));
2722                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2723                                 M_LDR_INTERN(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2724
2725                                 CODEGEN_CRITICAL_SECTION_END;
2726
2727                                 M_SUB(REG_ITMP1, REG_ITMP1, REG_ITMP3);
2728                                 M_CMP(REG_ITMP1, REG_ITMP2);
2729                                 /* If d == REG_ITMP2, then it's destroyed */
2730                                 if (d == REG_ITMP2)
2731                                         M_EOR(d, d, d);
2732                                 M_MOVLS_IMM(1, d);
2733
2734                                 if (super != NULL)
2735                                         emit_label(cd, BRANCH_LABEL_5);
2736                         }
2737
2738                         if (super == NULL) {
2739                                 emit_label(cd, BRANCH_LABEL_1);
2740                                 emit_label(cd, BRANCH_LABEL_4);
2741                         }
2742
2743                         }
2744
2745                         emit_store_dst(jd, iptr, d);
2746                         break;
2747
2748                 case ICMD_MULTIANEWARRAY:/* ..., cnt1, [cnt2, ...] ==> ..., arrayref  */
2749
2750                         /* copy sizes to stack if necessary  */
2751
2752                         MCODECHECK((iptr->s1.argcount << 1) + 64);
2753
2754                         for (s1 = iptr->s1.argcount; --s1 >= 0; ) {
2755
2756                                 var = VAR(iptr->sx.s23.s2.args[s1]);
2757
2758                                 /* copy SAVEDVAR sizes to stack */
2759
2760                                 if (!(var->flags & PREALLOC)) {
2761                                         s2 = emit_load(jd, iptr, var, REG_ITMP1);
2762                                         M_STR(s2, REG_SP, s1 * 4);
2763                                 }
2764                         }
2765
2766                         /* a0 = dimension count */
2767
2768                         assert(IS_IMM(iptr->s1.argcount));
2769                         M_MOV_IMM(REG_A0, iptr->s1.argcount);
2770
2771                         /* is patcher function set? */
2772
2773                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2774                                 disp = dseg_add_unique_address(cd, NULL);
2775
2776                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
2777                                                                         iptr->sx.s23.s3.c.ref, disp);
2778                         }
2779                         else
2780                                 disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2781
2782                         /* a1 = arraydescriptor */
2783
2784                         M_DSEG_LOAD(REG_A1, disp);
2785
2786                         /* a2 = pointer to dimensions = stack pointer */
2787
2788                         M_INTMOVE(REG_SP, REG_A2);
2789
2790                         /* call builtin_multianewarray here */
2791
2792                         disp = dseg_add_functionptr(cd, BUILTIN_multianewarray);
2793                         M_DSEG_BRANCH(disp);
2794
2795                         /* recompute pv */
2796
2797                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2798                         M_RECOMPUTE_PV(s1);
2799
2800                         /* check for exception before result assignment */
2801
2802                         emit_exception_check(cd, iptr);
2803
2804                         /* get arrayref */
2805
2806                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2807                         M_INTMOVE(REG_RESULT, d);
2808                         emit_store_dst(jd, iptr, d);
2809                         break;
2810
2811                 case ICMD_CHECKNULL:  /* ..., objectref  ==> ..., objectref           */
2812
2813                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2814                         emit_nullpointer_check(cd, iptr, s1);
2815                         break;
2816
2817                 default:
2818                         exceptions_throw_internalerror("Unknown ICMD %d during code generation",
2819                                                                                    iptr->opc);
2820                         return false;
2821                 } /* the big switch */
2822
2823                 } /* for all instructions */
2824
2825         } /* for all basic blocks */
2826
2827         dseg_createlinenumbertable(cd);
2828
2829
2830         /* generate traps */
2831
2832         emit_patcher_traps(jd);
2833
2834         /* everything's ok */
2835
2836         return true;
2837 }
2838
2839
2840 /* codegen_emit_stub_compiler **************************************************
2841
2842    Emits a stub routine which calls the compiler.
2843
2844 *******************************************************************************/
2845
2846 void codegen_emit_stub_compiler(jitdata *jd)
2847 {
2848         methodinfo  *m;
2849         codegendata *cd;
2850
2851         /* get required compiler data */
2852
2853         m  = jd->m;
2854         cd = jd->cd;
2855
2856         /* code for the stub */
2857
2858         M_LDR_INTERN(REG_ITMP1, REG_PC, -(2 * 4 + 2 * SIZEOF_VOID_P));
2859         M_LDR_INTERN(REG_PC, REG_PC, -(3 * 4 + 3 * SIZEOF_VOID_P));
2860 }
2861
2862
2863 /* codegen_emit_stub_native ****************************************************
2864
2865    Emits a stub routine which calls a native method.
2866
2867 *******************************************************************************/
2868
2869 void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f, int skipparams)
2870 {
2871         methodinfo  *m;
2872         codeinfo    *code;
2873         codegendata *cd;
2874         methoddesc  *md;
2875         s4           i, j;
2876         s4           t;
2877         int          s1, s2;
2878         int          disp;
2879
2880         /* get required compiler data */
2881
2882         m    = jd->m;
2883         code = jd->code;
2884         cd   = jd->cd;
2885
2886         /* initialize variables */
2887
2888         md = m->parseddesc;
2889
2890         /* calculate stackframe size */
2891
2892         cd->stackframesize =
2893                 4 +                                                /* return address  */
2894                 sizeof(stackframeinfo_t) +                         /* stackframeinfo  */
2895                 sizeof(localref_table) +                           /* localref_table  */
2896                 nmd->memuse * 4;                                   /* stack arguments */
2897
2898         /* align stack to 8-byte */
2899
2900         cd->stackframesize = (cd->stackframesize + 4) & ~4;
2901
2902         /* create method header */
2903
2904         (void) dseg_add_unique_address(cd, code);              /* CodeinfoPointer */
2905         (void) dseg_add_unique_s4(cd, cd->stackframesize);     /* FrameSize       */
2906         (void) dseg_add_unique_s4(cd, 0);                      /* IsSync          */
2907         (void) dseg_add_unique_s4(cd, 0);                      /* IsLeaf          */
2908         (void) dseg_add_unique_s4(cd, 0);                      /* IntSave         */
2909         (void) dseg_add_unique_s4(cd, 0);                      /* FltSave         */
2910         (void) dseg_addlinenumbertablesize(cd);
2911         (void) dseg_add_unique_s4(cd, 0);                      /* ExTableSize     */
2912
2913         /* generate stub code */
2914
2915         M_STMFD(1<<REG_LR, REG_SP);
2916         M_SUB_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - 1);
2917
2918 #if !defined(NDEBUG)
2919         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
2920                 emit_verbosecall_enter(jd);
2921 #endif
2922
2923 #if defined(ENABLE_GC_CACAO)
2924         /* Save callee saved integer registers in stackframeinfo (GC may
2925            need to recover them during a collection). */
2926
2927         disp = cd->stackframesize - SIZEOF_VOID_P - sizeof(stackframeinfo_t) +
2928                 OFFSET(stackframeinfo_t, intregs);
2929
2930         for (i = 0; i < INT_SAV_CNT; i++)
2931                 M_STR_INTERN(abi_registers_integer_saved[i], REG_SP, disp + i * 4);
2932 #endif
2933
2934         /* Save integer and float argument registers (these are 4
2935            registers, stack is 8-byte aligned). */
2936
2937         M_STMFD(BITMASK_ARGS, REG_SP);
2938         /* TODO: floating point */
2939
2940         /* create native stackframe info */
2941
2942         M_ADD_IMM(REG_A0, REG_SP, 4*4);
2943         M_MOV(REG_A1, REG_PV);
2944         disp = dseg_add_functionptr(cd, codegen_start_native_call);
2945         M_DSEG_BRANCH(disp);
2946
2947         /* recompute pv */
2948
2949         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2950         M_RECOMPUTE_PV(s1);
2951
2952         /* remember class argument */
2953
2954         if (m->flags & ACC_STATIC)
2955                 M_MOV(REG_ITMP3, REG_RESULT);
2956
2957         /* Restore integer and float argument registers (these are 4
2958            registers, stack is 8-byte aligned). */
2959
2960         M_LDMFD(BITMASK_ARGS, REG_SP);
2961         /* TODO: floating point */
2962
2963         /* copy or spill arguments to new locations */
2964         /* ATTENTION: the ARM has only integer argument registers! */
2965
2966         for (i = md->paramcount - 1, j = i + skipparams; i >= 0; i--, j--) {
2967                 t = md->paramtypes[i].type;
2968
2969                 if (!md->params[i].inmemory) {
2970                         s1 = md->params[i].regoff;
2971                         s2 = nmd->params[j].regoff;
2972
2973                         if (!nmd->params[j].inmemory) {
2974 #if !defined(__ARM_EABI__)
2975                                 SPLIT_OPEN(t, s2, REG_ITMP1);
2976 #endif
2977
2978                                 if (IS_2_WORD_TYPE(t))
2979                                         M_LNGMOVE(s1, s2);
2980                                 else
2981                                         M_INTMOVE(s1, s2);
2982
2983 #if !defined(__ARM_EABI__)
2984                                 SPLIT_STORE_AND_CLOSE(t, s2, 0);
2985 #endif
2986                         }
2987                         else {
2988                                 if (IS_2_WORD_TYPE(t))
2989                                         M_LST(s1, REG_SP, s2);
2990                                 else
2991                                         M_IST(s1, REG_SP, s2);
2992                         }
2993                 }
2994                 else {
2995                         s1 = md->params[i].regoff + cd->stackframesize;
2996                         s2 = nmd->params[j].regoff;
2997
2998                         if (IS_2_WORD_TYPE(t)) {
2999                                 M_LLD(REG_ITMP12_PACKED, REG_SP, s1);
3000                                 M_LST(REG_ITMP12_PACKED, REG_SP, s2);
3001                         }
3002                         else {
3003                                 M_ILD(REG_ITMP1, REG_SP, s1);
3004                                 M_IST(REG_ITMP1, REG_SP, s2);
3005                         }
3006                 }
3007         }
3008
3009         /* Handle native Java methods. */
3010
3011         if (m->flags & ACC_NATIVE) {
3012                 /* put class into second argument register */
3013
3014                 if (m->flags & ACC_STATIC)
3015                         M_MOV(REG_A1, REG_ITMP3);
3016
3017                 /* put env into first argument register */
3018
3019                 disp = dseg_add_address(cd, _Jv_env);
3020                 M_DSEG_LOAD(REG_A0, disp);
3021         }
3022
3023         /* Call the native function. */
3024
3025         disp = dseg_add_functionptr(cd, f);
3026         M_DSEG_BRANCH(disp);
3027
3028         /* recompute pv */
3029         /* TODO: this is only needed because of the tracer ... do we
3030            really need it? */
3031
3032         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3033         M_RECOMPUTE_PV(s1);
3034
3035 #if !defined(__SOFTFP__)
3036         /* TODO: this is only a hack, since we use R0/R1 for float return! */
3037         /* this depends on gcc; it is independent from our ENABLE_SOFTFLOAT define */
3038         if (md->returntype.type != TYPE_VOID && IS_FLT_DBL_TYPE(md->returntype.type)) {
3039 #if 0 && !defined(NDEBUG)
3040                 dolog("NATIVESTUB that returns float or double (%s.%s)", m->class->name->text, m->name->text);
3041 #endif
3042                 /* we cannot use this macro, since it is not defined in ENABLE_SOFTFLOAT */
3043                 /* M_CAST_FLT_TO_INT_TYPED(md->returntype.type, REG_FRESULT, REG_RESULT_TYPED(md->returntype.type)); */
3044                 if (IS_2_WORD_TYPE(md->returntype.type)) {
3045                         DCD(0xed2d8102); /* stfd    f0, [sp, #-8]! */
3046                         M_LDRD_UPDATE(REG_RESULT_PACKED, REG_SP, 8);
3047                 } else {
3048                         DCD(0xed2d0101); /* stfs    f0, [sp, #-4]!*/
3049                         M_LDR_UPDATE(REG_RESULT, REG_SP, 4);
3050                 }
3051         }
3052 #endif
3053
3054 #if !defined(NDEBUG)
3055         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
3056                 emit_verbosecall_exit(jd);
3057 #endif
3058
3059         /* remove native stackframe info */
3060         /* TODO: improve this store/load */
3061
3062         M_STMFD(BITMASK_RESULT, REG_SP);
3063
3064         M_ADD_IMM(REG_A0, REG_SP, 2*4);
3065         M_MOV(REG_A1, REG_PV);
3066         disp = dseg_add_functionptr(cd, codegen_finish_native_call);
3067         M_DSEG_BRANCH(disp);
3068         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3069         M_RECOMPUTE_PV(s1);
3070
3071         M_MOV(REG_ITMP1_XPTR, REG_RESULT);
3072         M_LDMFD(BITMASK_RESULT, REG_SP);
3073
3074 #if defined(ENABLE_GC_CACAO)
3075         /* restore callee saved int registers from stackframeinfo (GC might have  */
3076         /* modified them during a collection).                                    */
3077
3078         disp = cd->stackframesize - SIZEOF_VOID_P - sizeof(stackframeinfo_t) +
3079                 OFFSET(stackframeinfo_t, intregs);
3080
3081         for (i = 0; i < INT_SAV_CNT; i++)
3082                 M_LDR_INTERN(abi_registers_integer_saved[i], REG_SP, disp + i * 4);
3083 #endif
3084
3085         /* finish stub code, but do not yet return to caller */
3086
3087         M_ADD_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - 1);
3088         M_LDMFD(1<<REG_LR, REG_SP);
3089
3090         /* check for exception */
3091
3092         M_TST(REG_ITMP1_XPTR, REG_ITMP1_XPTR);
3093         M_MOVEQ(REG_LR, REG_PC);            /* if no exception, return to caller  */
3094
3095         /* handle exception here */
3096
3097         M_SUB_IMM(REG_ITMP2_XPC, REG_LR, 4);/* move fault address into xpc        */
3098
3099         disp = dseg_add_functionptr(cd, asm_handle_nat_exception);
3100         M_DSEG_LOAD(REG_ITMP3, disp);       /* load asm exception handler address */
3101         M_MOV(REG_PC, REG_ITMP3);           /* jump to asm exception handler      */
3102
3103         /* generate patcher stubs */
3104
3105         emit_patcher_traps(jd);
3106 }
3107
3108
3109 /* asm_debug *******************************************************************
3110
3111    Lazy debugger!
3112
3113 *******************************************************************************/
3114
3115 void asm_debug(int a1, int a2, int a3, int a4)
3116 {
3117         printf("===> i am going to exit after this debugging message!\n");
3118         printf("got asm_debug(%p, %p, %p, %p)\n",(void*)a1,(void*)a2,(void*)a3,(void*)a4);
3119         vm_abort("leave you now");
3120 }
3121
3122
3123 /*
3124  * These are local overrides for various environment variables in Emacs.
3125  * Please do not remove this and leave it at the end of the file, where
3126  * Emacs will automagically detect them.
3127  * ---------------------------------------------------------------------
3128  * Local variables:
3129  * mode: c
3130  * indent-tabs-mode: t
3131  * c-basic-offset: 4
3132  * tab-width: 4
3133  * End:
3134  * vim:noexpandtab:sw=4:ts=4:
3135  */