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/asmpart.h"
  53 #include "vm/jit/codegen-common.h"
  54 #include "vm/jit/dseg.h"
  55 #include "vm/jit/emit-common.h"
  56 #include "vm/jit/jit.h"
  57 #include "vm/jit/md.h"
  58 #include "vm/jit/methodheader.h"
  59 #include "vm/jit/parse.h"
  60 #include "vm/jit/patcher-common.h"
  61 #include "vm/jit/reg.h"
  62
  63 #if defined(ENABLE_LSRA)
  64 #include "vm/jit/allocator/lsra.h"
  65 #endif
  66
  67 #include "vmcore/loader.h"
  68 #include "vmcore/options.h"
  69
  70
  71 /* codegen_emit ****************************************************************
  72
  73    Generates machine code.
  74
  75 *******************************************************************************/
  76
  77 bool codegen_emit(jitdata *jd)
  78 {
  79         methodinfo         *m;
  80         codeinfo           *code;
  81         codegendata        *cd;
  82         registerdata       *rd;
  83         s4              i, t, len;
  84         s4              s1, s2, s3, d;
  85         s4              disp;
  86         varinfo        *var;
  87         basicblock     *bptr;
  88         instruction    *iptr;
  89         exception_entry *ex;
  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 = (jd->isleafmethod) ? 0 : 1;       /* space to save the LR */
 123         savedregs_num += (INT_SAV_CNT - rd->savintreguse);
 124         /*savedregs_num += (FLT_SAV_CNT - rd->savfltreguse);*/
 125         assert((FLT_SAV_CNT - rd->savfltreguse) == 0);
 126
 127         spilledregs_num = rd->memuse;
 128
 129 #if defined(ENABLE_THREADS)        /* space to save argument of monitor_enter */
 130         if (checksync && (m->flags & ACC_SYNCHRONIZED))
 131                 spilledregs_num++;
 132 #endif
 133
 134         cd->stackframesize = spilledregs_num * 8 + savedregs_num * 4;
 135
 136         /* XXX QUICK FIX: We shouldn't align the stack in Java code, but
 137            only in native stubs. */
 138         /* align stack to 8-byte */
 139
 140         cd->stackframesize = (cd->stackframesize + 4) & ~4;
 141
 142         /* SECTION: Method Header */
 143         /* create method header */
 144
 145         (void) dseg_add_unique_address(cd, code);              /* CodeinfoPointer */
 146         (void) dseg_add_unique_s4(cd, cd->stackframesize);     /* FrameSize       */
 147
 148 #if defined(ENABLE_THREADS)
 149         /* IsSync contains the offset relative to the stack pointer for the
 150            argument of monitor_exit used in the exception handler. Since the
 151            offset could be zero and give a wrong meaning of the flag it is
 152            offset by one.
 153         */
 154
 155         if (checksync && (m->flags & ACC_SYNCHRONIZED))
 156                 (void) dseg_add_unique_s4(cd, rd->memuse * 8 + 4);/* IsSync         */
 157         else
 158 #endif
 159                 (void) dseg_add_unique_s4(cd, 0);                  /* IsSync          */
 160
 161         (void) dseg_add_unique_s4(cd, jd->isleafmethod);       /* IsLeaf          */
 162         (void) dseg_add_unique_s4(cd, INT_SAV_CNT - rd->savintreguse); /* IntSave */
 163         (void) dseg_add_unique_s4(cd, FLT_SAV_CNT - rd->savfltreguse); /* FltSave */
 164         (void) dseg_addlinenumbertablesize(cd);
 165         (void) dseg_add_unique_s4(cd, jd->exceptiontablelength); /* ExTableSize   */
 166
 167         /* create exception table */
 168
 169         for (ex = jd->exceptiontable; ex != NULL; ex = ex->down) {
 170                 dseg_add_target(cd, ex->start);
 171                 dseg_add_target(cd, ex->end);
 172                 dseg_add_target(cd, ex->handler);
 173                 (void) dseg_add_unique_address(cd, ex->catchtype.any);
 174         }
 175
 176         /* save return address and used callee saved registers */
 177
 178         savedregs_bitmask = 0;
 179
 180         if (!jd->isleafmethod)
 181                 savedregs_bitmask = (1<<REG_LR);
 182
 183         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--)
 184                 savedregs_bitmask |= (1<<(rd->savintregs[i]));
 185
 186 #if !defined(NDEBUG)
 187         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
 188                 log_text("!!! CODEGEN: floating-point callee saved registers are not saved to stack (SEVERE! STACK IS MESSED UP!)");
 189                 /* TODO: floating-point */
 190         }
 191 #endif
 192
 193         if (savedregs_bitmask)
 194                 M_STMFD(savedregs_bitmask, REG_SP);
 195
 196         /* create additional stack frame for spilled variables (if necessary) */
 197
 198         if ((cd->stackframesize / 4 - savedregs_num) > 0)
 199                 M_SUB_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - savedregs_num);
 200
 201         /* take arguments out of register or stack frame */
 202
 203         md = m->parseddesc;
 204         for (i = 0, len = 0; i < md->paramcount; i++) {
 205                 s1 = md->params[i].regoff;
 206                 t = md->paramtypes[i].type;
 207
 208                 varindex = jd->local_map[len * 5 + t];
 209
 210                 len += (IS_2_WORD_TYPE(t)) ? 2 : 1;          /* 2 word type arguments */
 211
 212                 if (varindex == UNUSED)
 213                         continue;
 214
 215                 var = VAR(varindex);
 216
 217                 /* ATTENTION: we use interger registers for all arguments (even float) */
 218 #if !defined(ENABLE_SOFTFLOAT)
 219                 if (IS_INT_LNG_TYPE(t)) {
 220 #endif
 221                         if (!md->params[i].inmemory) {
 222                                 if (!(var->flags & INMEMORY)) {
 223                                         if (IS_2_WORD_TYPE(t))
 224                                                 M_LNGMOVE(s1, var->vv.regoff);
 225                                         else
 226                                                 M_INTMOVE(s1, var->vv.regoff);
 227                                 }
 228                                 else {
 229                                         if (IS_2_WORD_TYPE(t))
 230                                                 M_LST(s1, REG_SP, var->vv.regoff);
 231                                         else
 232                                                 M_IST(s1, REG_SP, var->vv.regoff);
 233                                 }
 234                         }
 235                         else {                                   /* stack arguments       */
 236                                 if (!(var->flags & INMEMORY)) {      /* stack arg -> register */
 237                                         if (IS_2_WORD_TYPE(t))
 238                                                 M_LLD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 239                                         else
 240                                                 M_ILD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 241                                 }
 242                                 else {                               /* stack arg -> spilled  */
 243                                         /* Reuse Memory Position on Caller Stack */
 244                                         var->vv.regoff = cd->stackframesize + s1;
 245                                 }
 246                         }
 247 #if !defined(ENABLE_SOFTFLOAT)
 248                 }
 249                 else {
 250                         if (!md->params[i].inmemory) {
 251                                 if (!(var->flags & INMEMORY)) {
 252                                         M_CAST_INT_TO_FLT_TYPED(t, s1, var->vv.regoff);
 253                                 }
 254                                 else {
 255                                         if (IS_2_WORD_TYPE(t))
 256                                                 M_LST(s1, REG_SP, var->vv.regoff);
 257                                         else
 258                                                 M_IST(s1, REG_SP, var->vv.regoff);
 259                                 }
 260                         }
 261                         else {
 262                                 if (!(var->flags & INMEMORY)) {
 263                                         if (IS_2_WORD_TYPE(t))
 264                                                 M_DLD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 265                                         else
 266                                                 M_FLD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 267                                 }
 268                                 else {
 269                                         /* Reuse Memory Position on Caller Stack */
 270                                         var->vv.regoff = cd->stackframesize + s1;
 271                                 }
 272                         }
 273                 }
 274 #endif /* !defined(ENABLE_SOFTFLOAT) */
 275         }
 276
 277 #if defined(ENABLE_THREADS)
 278         /* call monitorenter function */
 279
 280         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
 281                 /* stack offset for monitor argument */
 282
 283                 s1 = rd->memuse * 8;
 284
 285 # if !defined(NDEBUG)
 286                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 287                         M_STMFD(BITMASK_ARGS, REG_SP);
 288                         s1 += 4 * 4;
 289                 }
 290 # endif
 291
 292                 /* get the correct lock object */
 293
 294                 if (m->flags & ACC_STATIC) {
 295                         disp = dseg_add_address(cd, &m->class->object.header);
 296                         M_DSEG_LOAD(REG_A0, disp);
 297                 }
 298                 else {
 299                         emit_nullpointer_check_force(cd, iptr, REG_A0);
 300                 }
 301
 302                 M_STR(REG_A0, REG_SP, s1);
 303                 disp = dseg_add_functionptr(cd, LOCK_monitor_enter);
 304                 M_DSEG_BRANCH(disp);
 305                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
 306                 M_RECOMPUTE_PV(s1);
 307
 308 # if !defined(NDEBUG)
 309                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
 310                         M_LDMFD(BITMASK_ARGS, REG_SP);
 311 # endif
 312         }
 313 #endif
 314
 315 #if !defined(NDEBUG)
 316         /* call trace function */
 317
 318         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
 319                 emit_verbosecall_enter(jd);
 320 #endif
 321
 322         /* end of header generation */
 323
 324         /* create replacement points */
 325         REPLACEMENT_POINTS_INIT(cd, jd);
 326
 327         /* SECTION: ICMD Code Generation */
 328         /* for all basic blocks */
 329
 330         for (bptr = jd->basicblocks; bptr != NULL; bptr = bptr->next) {
 331
 332                 bptr->mpc = (s4) (cd->mcodeptr - cd->mcodebase);
 333
 334                 /* is this basic block reached? */
 335
 336                 if (bptr->flags < BBREACHED)
 337                         continue;
 338
 339                 /* branch resolving */
 340
 341                 codegen_resolve_branchrefs(cd, bptr);
 342
 343                 /* handle replacement points */
 344                 REPLACEMENT_POINT_BLOCK_START(cd, bptr);
 345
 346                 /* copy interface registers to their destination */
 347
 348                 len = bptr->indepth;
 349
 350                 MCODECHECK(64+len);
 351
 352 #if defined(ENABLE_LSRA)
 353                 if (opt_lsra) {
 354                 while (len) {
 355                         len--;
 356                         var = VAR(bptr->invars[len]);
 357                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 358                                 if (!(var->flags & INMEMORY))
 359                                         d= var->vv.regoff;
 360                                 else
 361                                         d=REG_ITMP1;
 362                                 M_INTMOVE(REG_ITMP1, d);
 363                                 emit_store(jd, NULL, var, d);
 364                         }
 365                 }
 366                 } else {
 367 #endif
 368                 while (len) {
 369                         len--;
 370                         var = VAR(bptr->invars[len]);
 371
 372                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 373                                 d = codegen_reg_of_var(0, var, REG_ITMP1);
 374                                 M_INTMOVE(REG_ITMP1, d);
 375                                 emit_store(jd, NULL, var, d);
 376                         }
 377                         else {
 378                                 assert((var->flags & INOUT));
 379                         }
 380                 }
 381 #if defined(ENABLE_LSRA)
 382                 }
 383 #endif
 384
 385                 /* for all instructions */
 386                 len = bptr->icount;
 387                 currentline = 0;
 388                 for (iptr = bptr->iinstr; len > 0; len--, iptr++) {
 389
 390                         /* add line number */
 391                         if (iptr->line != currentline) {
 392                                 dseg_addlinenumber(cd, iptr->line);
 393                                 currentline = iptr->line;
 394                         }
 395
 396                         MCODECHECK(64);   /* an instruction usually needs < 64 words      */
 397
 398                         /* the big switch */
 399                         switch (iptr->opc) {
 400                 case ICMD_NOP:        /* ... ==> ...                                  */
 401                         break;
 402
 403         /* constant operations ************************************************/
 404
 405                 case ICMD_ICONST:     /* ...  ==> ..., constant                       */
 406
 407                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 408                         ICONST(d, iptr->sx.val.i);
 409                         emit_store_dst(jd, iptr, d);
 410                         break;
 411
 412                 case ICMD_ACONST:     /* ... ==> ..., constant                        */
 413
 414                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 415                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
 416                                 disp = dseg_add_unique_address(cd, NULL);
 417
 418                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
 419                                                     iptr->sx.val.c.ref, disp);
 420
 421                                 if (opt_showdisassemble)
 422                                         M_NOP;
 423
 424                                 M_DSEG_LOAD(d, disp);
 425                         }
 426                         else {
 427                                 ICONST(d, (u4) iptr->sx.val.anyptr);
 428                         }
 429                         emit_store_dst(jd, iptr, d);
 430                         break;
 431
 432                 case ICMD_LCONST:     /* ...  ==> ..., constant                       */
 433
 434                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 435                         LCONST(d, iptr->sx.val.l);
 436                         emit_store_dst(jd, iptr, d);
 437                         break;
 438
 439                 case ICMD_FCONST:     /* ...  ==> ..., constant                       */
 440
 441 #if defined(ENABLE_SOFTFLOAT)
 442                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 443                         ICONST(d, iptr->sx.val.i);
 444                         emit_store_dst(jd, iptr, d);
 445 #else
 446                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 447                         FCONST(d, iptr->sx.val.f);
 448                         emit_store_dst(jd, iptr, d);
 449 #endif
 450                         break;
 451
 452                 case ICMD_DCONST:     /* ...  ==> ..., constant                       */
 453
 454 #if defined(ENABLE_SOFTFLOAT)
 455                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 456                         LCONST(d, iptr->sx.val.l);
 457                         emit_store_dst(jd, iptr, d);
 458 #else
 459                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 460                         DCONST(d, iptr->sx.val.d);
 461                         emit_store_dst(jd, iptr, d);
 462 #endif
 463                         break;
 464
 465
 466                 /* load/store/copy/move operations ************************************/
 467
 468                 case ICMD_ILOAD:      /* ...  ==> ..., content of local variable      */
 469                 case ICMD_ALOAD:      /* op1 = local variable                         */
 470                 case ICMD_FLOAD:
 471                 case ICMD_LLOAD:
 472                 case ICMD_DLOAD:
 473                 case ICMD_ISTORE:     /* ..., value  ==> ...                          */
 474                 case ICMD_FSTORE:
 475                 case ICMD_LSTORE:
 476                 case ICMD_DSTORE:
 477                 case ICMD_COPY:
 478                 case ICMD_MOVE:
 479
 480                         emit_copy(jd, iptr);
 481                         break;
 482
 483                 case ICMD_ASTORE:
 484                         if (!(iptr->flags.bits & INS_FLAG_RETADDR))
 485                                 emit_copy(jd, iptr);
 486                         break;
 487
 488                 /* pop operations *****************************************************/
 489
 490                 /* attention: double and longs are only one entry in CACAO ICMDs      */
 491
 492                 case ICMD_POP:        /* ..., value  ==> ...                          */
 493                 case ICMD_POP2:       /* ..., value, value  ==> ...                   */
 494
 495                         break;
 496
 497
 498                 /* integer operations *************************************************/
 499
 500                 case ICMD_INT2BYTE:   /* ..., value  ==> ..., value                   */
 501
 502                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 503                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 504                         M_MOV(d, REG_LSL(s1, 24));
 505                         M_MOV(d, REG_ASR(d, 24));
 506                         emit_store_dst(jd, iptr, d);
 507                         break;
 508
 509                 case ICMD_INT2CHAR:   /* ..., value  ==> ..., value                   */
 510
 511                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 512                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 513                         M_MOV(d, REG_LSL(s1, 16));
 514                         M_MOV(d, REG_LSR(d, 16)); /* ATTENTION: char is unsigned */
 515                         emit_store_dst(jd, iptr, d);
 516                         break;
 517
 518                 case ICMD_INT2SHORT:  /* ..., value  ==> ..., value                   */
 519
 520                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 521                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 522                         M_MOV(d, REG_LSL(s1, 16));
 523                         M_MOV(d, REG_ASR(d, 16));
 524                         emit_store_dst(jd, iptr, d);
 525                         break;
 526
 527                 case ICMD_I2L:        /* ..., value  ==> ..., value                   */
 528
 529                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 530                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 531                         M_INTMOVE(s1, GET_LOW_REG(d));
 532                         M_MOV(GET_HIGH_REG(d), REG_ASR(s1, 31));
 533                         emit_store_dst(jd, iptr, d);
 534                         break;
 535
 536                 case ICMD_L2I:        /* ..., value  ==> ..., value                   */
 537
 538                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 539                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 540                         M_INTMOVE(s1, d);
 541                         emit_store_dst(jd, iptr, d);
 542                         break;
 543
 544                 case ICMD_INEG:       /* ..., value  ==> ..., - value                 */
 545
 546                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 547                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 548                         M_RSB_IMM(d, s1, 0);
 549                         emit_store_dst(jd, iptr, d);
 550                         break;
 551
 552                 case ICMD_LNEG:       /* ..., value  ==> ..., - value                 */
 553
 554                         s1 = emit_load_s1(jd, iptr, REG_ITMP12_PACKED);
 555                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 556                         M_RSB_IMMS(GET_LOW_REG(d), GET_LOW_REG(s1), 0);
 557                         M_RSC_IMM(GET_HIGH_REG(d), GET_HIGH_REG(s1), 0);
 558                         emit_store_dst(jd, iptr, d);
 559                         break;
 560
 561                 case ICMD_IADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 562
 563                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 564                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 565                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 566                         M_ADD(d, s1, s2);
 567                         emit_store_dst(jd, iptr, d);
 568                         break;
 569
 570                 case ICMD_LADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 571
 572                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 573                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 574                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 575                         M_ADD_S(GET_LOW_REG(d), s1, s2);
 576                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 577                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 578                         M_ADC(GET_HIGH_REG(d), s1, s2);
 579                         emit_store_dst(jd, iptr, d);
 580                         break;
 581
 582                 case ICMD_IADDCONST:
 583                 case ICMD_IINC:
 584
 585                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 586                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 587
 588                         if (IS_IMM(iptr->sx.val.i)) {
 589                                 M_ADD_IMM(d, s1, iptr->sx.val.i);
 590                         } else if (IS_IMM(-iptr->sx.val.i)) {
 591                                 M_SUB_IMM(d, s1, (-iptr->sx.val.i));
 592                         } else {
 593                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 594                                 M_ADD(d, s1, REG_ITMP3);
 595                         }
 596
 597                         emit_store_dst(jd, iptr, d);
 598                         break;
 599
 600                 case ICMD_LADDCONST:  /* ..., value  ==> ..., value + constant        */
 601                                       /* sx.val.l = constant                          */
 602
 603                         s3 = iptr->sx.val.l & 0xffffffff;
 604                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 605                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 606                         if (IS_IMM(s3))
 607                                 M_ADD_IMMS(GET_LOW_REG(d), s1, s3);
 608                         else {
 609                                 ICONST(REG_ITMP3, s3);
 610                                 M_ADD_S(GET_LOW_REG(d), s1, REG_ITMP3);
 611                         }
 612                         s3 = iptr->sx.val.l >> 32;
 613                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP2);
 614                         if (IS_IMM(s3))
 615                                 M_ADC_IMM(GET_HIGH_REG(d), s1, s3);
 616                         else {
 617                                 ICONST(REG_ITMP3, s3);
 618                                 M_ADC(GET_HIGH_REG(d), s1, REG_ITMP3);
 619                         }
 620                         emit_store_dst(jd, iptr, d);
 621                         break;
 622
 623                 case ICMD_ISUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 624
 625                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 626                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 627                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 628                         M_SUB(d, s1, s2);
 629                         emit_store_dst(jd, iptr, d);
 630                         break;
 631
 632                 case ICMD_LSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 633
 634                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 635                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 636                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 637                         M_SUB_S(GET_LOW_REG(d), s1, s2);
 638                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 639                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 640                         M_SBC(GET_HIGH_REG(d), s1, s2);
 641                         emit_store_dst(jd, iptr, d);
 642                         break;
 643
 644                 case ICMD_ISUBCONST:  /* ..., value  ==> ..., value + constant        */
 645                                       /* sx.val.i = constant                          */
 646
 647                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 648                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 649                         if (IS_IMM(iptr->sx.val.i))
 650                                 M_SUB_IMM(d, s1, iptr->sx.val.i);
 651                         else {
 652                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 653                                 M_SUB(d, s1, REG_ITMP3);
 654                         }
 655                         emit_store_dst(jd, iptr, d);
 656                         break;
 657
 658                 case ICMD_LSUBCONST:  /* ..., value  ==> ..., value - constant        */
 659                                       /* sx.val.l = constant                          */
 660
 661                         s3 = iptr->sx.val.l & 0xffffffff;
 662                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 663                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 664                         if (IS_IMM(s3))
 665                                 M_SUB_IMMS(GET_LOW_REG(d), s1, s3);
 666                         else {
 667                                 ICONST(REG_ITMP3, s3);
 668                                 M_SUB_S(GET_LOW_REG(d), s1, REG_ITMP3);
 669                         }
 670                         s3 = iptr->sx.val.l >> 32;
 671                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP2);
 672                         if (IS_IMM(s3))
 673                                 M_SBC_IMM(GET_HIGH_REG(d), s1, s3);
 674                         else {
 675                                 ICONST(REG_ITMP3, s3);
 676                                 M_SBC(GET_HIGH_REG(d), s1, REG_ITMP3);
 677                         }
 678                         emit_store_dst(jd, iptr, d);
 679                         break;
 680
 681                 case ICMD_IMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 682
 683                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 684                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 685                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 686                         M_MUL(d, s1, s2);
 687                         emit_store_dst(jd, iptr, d);
 688                         break;
 689
 690                 case ICMD_IDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 691                 case ICMD_IREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 692
 693                         s1 = emit_load_s1(jd, iptr, REG_A0);
 694                         s2 = emit_load_s2(jd, iptr, REG_A1);
 695                         emit_arithmetic_check(cd, iptr, s2);
 696
 697                         /* move arguments into argument registers */
 698                         M_INTMOVE(s1, REG_A0);
 699                         M_INTMOVE(s2, REG_A1);
 700
 701                         /* call builtin function */
 702                         bte = iptr->sx.s23.s3.bte;
 703                         disp = dseg_add_functionptr(cd, bte->fp);
 704                         M_DSEG_BRANCH(disp);
 705
 706                         /* recompute pv */
 707                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
 708                         M_RECOMPUTE_PV(s1);
 709
 710                         /* move result into destination register */
 711                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
 712                         M_INTMOVE(REG_RESULT, d);
 713                         emit_store_dst(jd, iptr, d);
 714                         break;
 715
 716                 case ICMD_LDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 717                 case ICMD_LREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 718
 719                         /* move arguments into argument registers */
 720
 721                         s1 = emit_load_s1(jd, iptr, REG_A0_A1_PACKED);
 722                         s2 = emit_load_s2(jd, iptr, REG_A2_A3_PACKED);
 723                         /* XXX TODO: only do this if arithmetic check is really done! */
 724                         M_ORR(GET_HIGH_REG(s2), GET_LOW_REG(s2), REG_ITMP3);
 725                         emit_arithmetic_check(cd, iptr, REG_ITMP3);
 726
 727                         M_LNGMOVE(s1, REG_A0_A1_PACKED);
 728                         M_LNGMOVE(s2, REG_A2_A3_PACKED);
 729
 730                         /* call builtin function */
 731                         bte = iptr->sx.s23.s3.bte;
 732                         disp = dseg_add_functionptr(cd, bte->fp);
 733                         M_DSEG_BRANCH(disp);
 734
 735                         /* recompute pv */
 736                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
 737                         M_RECOMPUTE_PV(s1);
 738
 739                         /* move result into destination register */
 740                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
 741                         M_LNGMOVE(REG_RESULT_PACKED, d);
 742                         emit_store_dst(jd, iptr, d);
 743                         break;
 744
 745                 case ICMD_IMULPOW2:   /* ..., value  ==> ..., value * (2 ^ constant)  */
 746                                       /* sx.val.i = constant                          */
 747
 748                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 749                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 750                         M_MOV(d, REG_LSL(s1, iptr->sx.val.i));
 751                         emit_store_dst(jd, iptr, d);
 752                         break;
 753
 754                 case ICMD_IDIVPOW2:   /* ..., value  ==> ..., value / (2 ^ constant)  */
 755                                       /* sx.val.i = constant                          */
 756
 757                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 758                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 759                         /* this rounds towards 0 as java likes it */
 760                         M_MOV(REG_ITMP3, REG_ASR(s1, 31));
 761                         M_ADD(REG_ITMP3, s1, REG_LSR(REG_ITMP3, 32 - iptr->sx.val.i));
 762                         M_MOV(d, REG_ASR(REG_ITMP3, iptr->sx.val.i));
 763                         /* this rounds towards nearest, not java style */
 764                         /*M_MOV_S(d, REG_ASR(s1, iptr->sx.val.i));
 765                         M_ADCMI_IMM(d, d, 0);*/
 766                         emit_store_dst(jd, iptr, d);
 767                         break;
 768
 769                 case ICMD_IREMPOW2:   /* ..., value  ==> ..., value % constant        */
 770                                       /* sx.val.i = constant [ (2 ^ x) - 1 ]          */
 771
 772                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 773                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 774                         M_MOV_S(REG_ITMP1, s1);
 775                         M_RSBMI_IMM(REG_ITMP1, REG_ITMP1, 0);
 776                         if (IS_IMM(iptr->sx.val.i))
 777                                 M_AND_IMM(REG_ITMP1, iptr->sx.val.i, d);
 778                         else {
 779                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 780                                 M_AND(REG_ITMP1, REG_ITMP3, d);
 781                         }
 782                         M_RSBMI_IMM(d, d, 0);
 783                         emit_store_dst(jd, iptr, d);
 784                         break;
 785
 786                 case ICMD_ISHL:       /* ..., val1, val2  ==> ..., val1 << val2       */
 787
 788                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 789                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 790                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 791                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 792                         M_MOV(d, REG_LSL_REG(s1, REG_ITMP2));
 793                         emit_store_dst(jd, iptr, d);
 794                         break;
 795
 796                 case ICMD_ISHR:       /* ..., val1, val2  ==> ..., val1 >> val2       */
 797
 798                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 799                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 800                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 801                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 802                         M_MOV(d, REG_ASR_REG(s1, REG_ITMP2));
 803                         emit_store_dst(jd, iptr, d);
 804                         break;
 805
 806                 case ICMD_IUSHR:      /* ..., val1, val2  ==> ..., val1 >>> val2      */
 807
 808                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 809                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 810                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 811                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 812                         M_MOV(d, REG_LSR_REG(s1, REG_ITMP2));
 813                         emit_store_dst(jd, iptr, d);
 814                         break;
 815
 816                 case ICMD_ISHLCONST:  /* ..., value  ==> ..., value << constant       */
 817                                       /* sx.val.i = constant                          */
 818
 819                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 820                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 821                         M_MOV(d, REG_LSL(s1, iptr->sx.val.i & 0x1f));
 822                         emit_store_dst(jd, iptr, d);
 823                         break;
 824
 825                 case ICMD_ISHRCONST:  /* ..., value  ==> ..., value >> constant       */
 826                                       /* sx.val.i = constant                          */
 827
 828                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 829                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 830                         /* we need to check for zero here because arm interprets it as SHR by 32 */
 831                         if ((iptr->sx.val.i & 0x1f) == 0) {
 832                                 M_INTMOVE(s1, d);
 833                         } else {
 834                                 M_MOV(d, REG_ASR(s1, iptr->sx.val.i & 0x1f));
 835                         }
 836                         emit_store_dst(jd, iptr, d);
 837                         break;
 838
 839                 case ICMD_IUSHRCONST: /* ..., value  ==> ..., value >>> constant      */
 840                                       /* sx.val.i = constant                          */
 841
 842                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 843                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 844                         /* we need to check for zero here because arm interprets it as SHR by 32 */
 845                         if ((iptr->sx.val.i & 0x1f) == 0)
 846                                 M_INTMOVE(s1, d);
 847                         else
 848                                 M_MOV(d, REG_LSR(s1, iptr->sx.val.i & 0x1f));
 849                         emit_store_dst(jd, iptr, d);
 850                         break;
 851
 852                 case ICMD_IAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 853
 854                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 855                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 856                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 857                         M_AND(s1, s2, d);
 858                         emit_store_dst(jd, iptr, d);
 859                         break;
 860
 861                 case ICMD_LAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 862
 863                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 864                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 865                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 866                         M_AND(s1, s2, GET_LOW_REG(d));
 867                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 868                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 869                         M_AND(s1, s2, GET_HIGH_REG(d));
 870                         emit_store_dst(jd, iptr, d);
 871                         break;
 872
 873                 case ICMD_IOR:        /* ..., val1, val2  ==> ..., val1 | val2        */
 874
 875                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 876                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 877                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 878                         M_ORR(s1, s2, d);
 879                         emit_store_dst(jd, iptr, d);
 880                         break;
 881
 882                 case ICMD_LOR:       /* ..., val1, val2  ==> ..., val1 | val2        */
 883
 884                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 885                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 886                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 887                         M_ORR(s1, s2, GET_LOW_REG(d));
 888                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 889                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 890                         M_ORR(s1, s2, GET_HIGH_REG(d));
 891                         emit_store_dst(jd, iptr, d);
 892                         break;
 893
 894                 case ICMD_IXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
 895
 896                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 897                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 898                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 899                         M_EOR(s1, s2, d);
 900                         emit_store_dst(jd, iptr, d);
 901                         break;
 902
 903                 case ICMD_LXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
 904
 905                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 906                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 907                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 908                         M_EOR(s1, s2, GET_LOW_REG(d));
 909                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 910                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 911                         M_EOR(s1, s2, GET_HIGH_REG(d));
 912                         emit_store_dst(jd, iptr, d);
 913                         break;
 914
 915
 916         /* floating operations ************************************************/
 917
 918 #if !defined(ENABLE_SOFTFLOAT)
 919
 920                 case ICMD_FNEG:       /* ..., value  ==> ..., - value                 */
 921
 922                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 923                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 924                         M_MNFS(d, s1);
 925                         emit_store_dst(jd, iptr, d);
 926                         break;
 927
 928                 case ICMD_FADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 929
 930                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 931                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 932                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 933                         M_ADFS(d, s1, s2);
 934                         emit_store_dst(jd, iptr, d);
 935                         break;
 936
 937                 case ICMD_FSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 938
 939                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 940                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 941                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 942                         M_SUFS(d, s1, s2);
 943                         emit_store_dst(jd, iptr, d);
 944                         break;
 945
 946                 case ICMD_FMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 947
 948                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 949                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 950                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 951                         M_MUFS(d, s1, s2);
 952                         emit_store_dst(jd, iptr, d);
 953                         break;
 954
 955                 case ICMD_FDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 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_DVFS(d, s1, s2);
 960                         emit_store_dst(jd, iptr, d);
 961                         break;
 962
 963                 /* ATTENTION: Jave does not want IEEE behaviour in FREM, do
 964                    not use this */
 965
 966                 case ICMD_FREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 967
 968                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 969                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 970                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 971                         M_RMFS(d, s1, s2);
 972                         emit_store_dst(jd, iptr, d);
 973                         break;
 974
 975                 case ICMD_DNEG:       /* ..., value  ==> ..., - value                 */
 976
 977                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 978                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 979                         M_MNFD(d, s1);
 980                         emit_store_dst(jd, iptr, d);
 981                         break;
 982
 983                 case ICMD_DADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 984
 985                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 986                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 987                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 988                         M_ADFD(d, s1, s2);
 989                         emit_store_dst(jd, iptr, d);
 990                         break;
 991
 992                 case ICMD_DSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 993
 994                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 995                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 996                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 997                         M_SUFD(d, s1, s2);
 998                         emit_store_dst(jd, iptr, d);
 999                         break;
1000
1001                 case ICMD_DMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1002
1003                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1004                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1005                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1006                         M_MUFD(d, s1, s2);
1007                         emit_store_dst(jd, iptr, d);
1008                         break;
1009
1010                 case ICMD_DDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1011
1012                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1013                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1014                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1015                         M_DVFD(d, s1, s2);
1016                         emit_store_dst(jd, iptr, d);
1017                         break;
1018
1019                 /* ATTENTION: Jave does not want IEEE behaviour in DREM, do
1020                    not use this */
1021
1022                 case ICMD_DREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
1023
1024                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1025                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1026                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1027                         M_RMFD(d, s1, s2);
1028                         emit_store_dst(jd, iptr, d);
1029                         break;
1030
1031                 case ICMD_I2F:       /* ..., value  ==> ..., (float) value            */
1032
1033                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1034                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1035                         M_FLTS(d, s1);
1036                         emit_store_dst(jd, iptr, d);
1037                         break;
1038
1039                 case ICMD_I2D:       /* ..., value  ==> ..., (double) value           */
1040
1041                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1042                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1043                         M_FLTD(d, s1);
1044                         emit_store_dst(jd, iptr, d);
1045                         break;
1046
1047                 case ICMD_F2I:       /* ..., value  ==> ..., (int) value              */
1048
1049                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1050                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1051                         /* this uses round towards zero, as Java likes it */
1052                         M_FIX(d, s1);
1053                         /* this checks for NaN; to return zero as Java likes it */
1054                         M_CMF(s1, 0x8);
1055                         M_MOVVS_IMM(0, d);
1056                         emit_store_dst(jd, iptr, d);
1057                         break;
1058
1059                 case ICMD_D2I:       /* ..., value  ==> ..., (int) value              */
1060
1061                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1062                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1063                         /* this uses round towards zero, as Java likes it */
1064                         M_FIX(d, s1);
1065                         /* this checks for NaN; to return zero as Java likes it */
1066                         M_CMF(s1, 0x8);
1067                         M_MOVVS_IMM(0, d);
1068                         emit_store_dst(jd, iptr, d);
1069                         break;
1070
1071                 case ICMD_D2F:       /* ..., value  ==> ..., (float) value            */
1072
1073                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1074                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1075                         M_MVFS(d,s1);
1076                         emit_store_dst(jd, iptr, d);
1077                         break;
1078
1079                 case ICMD_F2D:       /* ..., value  ==> ..., (double) value           */
1080
1081                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1082                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1083                         M_MVFD(d,s1);
1084                         emit_store_dst(jd, iptr, d);
1085                         break;
1086
1087                 case ICMD_FCMPG:      /* ..., val1, val2  ==> ..., val1 fcmpg val2    */
1088
1089                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1090                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1091                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1092                         M_CMF(s2, s1);
1093                         M_MOV_IMM(d, 0);
1094                         M_SUBGT_IMM(d, d, 1);
1095                         M_ADDLT_IMM(d, d, 1);
1096                         emit_store_dst(jd, iptr, d);
1097                         break;
1098
1099                 case ICMD_DCMPG:      /* ..., val1, val2  ==> ..., val1 dcmpg val2    */
1100
1101                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1102                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1103                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1104                         M_CMF(s2, s1);
1105                         M_MOV_IMM(d, 0);
1106                         M_SUBGT_IMM(d, d, 1);
1107                         M_ADDLT_IMM(d, d, 1);
1108                         emit_store_dst(jd, iptr, d);
1109                         break;
1110
1111                 case ICMD_FCMPL:      /* ..., val1, val2  ==> ..., val1 fcmpl val2    */
1112
1113                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1114                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1115                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1116                         M_CMF(s1, s2);
1117                         M_MOV_IMM(d, 0);
1118                         M_SUBLT_IMM(d, d, 1);
1119                         M_ADDGT_IMM(d, d, 1);
1120                         emit_store_dst(jd, iptr, d);
1121                         break;
1122
1123                 case ICMD_DCMPL:      /* ..., val1, val2  ==> ..., val1 dcmpl val2    */
1124
1125                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1126                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1127                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1128                         M_CMF(s1, s2);
1129                         M_MOV_IMM(d, 0);
1130                         M_SUBLT_IMM(d, d, 1);
1131                         M_ADDGT_IMM(d, d, 1);
1132                         emit_store_dst(jd, iptr, d);
1133                         break;
1134
1135 #endif /* !defined(ENABLE_SOFTFLOAT) */
1136
1137
1138                 /* memory operations **************************************************/
1139
1140                 case ICMD_ARRAYLENGTH: /* ..., arrayref  ==> ..., length              */
1141
1142                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1143                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1144                         /* implicit null-pointer check */
1145                         M_ILD_INTERN(d, s1, OFFSET(java_array_t, size));
1146                         emit_store_dst(jd, iptr, d);
1147                         break;
1148
1149                 case ICMD_BALOAD:     /* ..., arrayref, index  ==> ..., value         */
1150
1151                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1152                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1153                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1154                         /* implicit null-pointer check */
1155                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1156                         M_ADD(REG_ITMP1, s1, s2); /* REG_ITMP1 = s1 + 1 * s2 */
1157                         M_LDRSB(d, REG_ITMP1, OFFSET(java_bytearray_t, data[0]));
1158                         emit_store_dst(jd, iptr, d);
1159                         break;
1160
1161                 case ICMD_CALOAD:     /* ..., arrayref, index  ==> ..., value         */
1162
1163                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1164                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1165                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1166                         /* implicit null-pointer check */
1167                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1168                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1169                         M_LDRH(d, REG_ITMP1, OFFSET(java_chararray_t, data[0]));
1170                         emit_store_dst(jd, iptr, d);
1171                         break;
1172
1173                 case ICMD_SALOAD:     /* ..., arrayref, index  ==> ..., value         */
1174
1175                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1176                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1177                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1178                         /* implicit null-pointer check */
1179                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1180                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1181                         M_LDRSH(d, REG_ITMP1, OFFSET(java_shortarray_t, data[0]));
1182                         emit_store_dst(jd, iptr, d);
1183                         break;
1184
1185                 case ICMD_IALOAD:     /* ..., arrayref, index  ==> ..., value         */
1186
1187                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1188                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1189                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1190                         /* implicit null-pointer check */
1191                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1192                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1193                         M_ILD_INTERN(d, REG_ITMP1, OFFSET(java_intarray_t, data[0]));
1194                         emit_store_dst(jd, iptr, d);
1195                         break;
1196
1197                 case ICMD_LALOAD:     /* ..., arrayref, index  ==> ..., value         */
1198
1199                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1200                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1201                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1202                         /* implicit null-pointer check */
1203                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1204                         M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1205                         M_LLD_INTERN(d, REG_ITMP3, OFFSET(java_longarray_t, data[0]));
1206                         emit_store_dst(jd, iptr, d);
1207                         break;
1208
1209                 case ICMD_FALOAD:     /* ..., arrayref, index  ==> ..., value         */
1210
1211                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1212                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1213                         /* implicit null-pointer check */
1214                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1215                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1216 #if !defined(ENABLE_SOFTFLOAT)
1217                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1218                         M_FLD_INTERN(d, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1219 #else
1220                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1221                         M_ILD_INTERN(d, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1222 #endif
1223                         emit_store_dst(jd, iptr, d);
1224                         break;
1225
1226                 case ICMD_DALOAD:     /* ..., arrayref, index  ==> ..., value         */
1227
1228                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1229                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1230                         /* implicit null-pointer check */
1231                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1232                         M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1233 #if !defined(ENABLE_SOFTFLOAT)
1234                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1235                         M_DLD_INTERN(d, REG_ITMP3, OFFSET(java_doublearray_t, data[0]));
1236 #else
1237                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1238                         M_LLD_INTERN(d, REG_ITMP3, OFFSET(java_doublearray_t, data[0]));
1239 #endif
1240                         emit_store_dst(jd, iptr, d);
1241                         break;
1242
1243                 case ICMD_AALOAD:     /* ..., arrayref, index  ==> ..., value         */
1244
1245                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1246                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1247                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1248                         /* implicit null-pointer check */
1249                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1250                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1251                         M_LDR_INTERN(d, REG_ITMP1, OFFSET(java_objectarray_t, data[0]));
1252                         emit_store_dst(jd, iptr, d);
1253                         break;
1254
1255                 case ICMD_BASTORE:    /* ..., arrayref, index, value  ==> ...         */
1256
1257                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1258                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1259                         /* implicit null-pointer check */
1260                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1261                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1262                         M_ADD(REG_ITMP1, s1, s2); /* REG_ITMP1 = s1 + 1 * s2 */
1263                         M_STRB(s3, REG_ITMP1, OFFSET(java_bytearray_t, data[0]));
1264                         break;
1265
1266                 case ICMD_CASTORE:    /* ..., arrayref, index, value  ==> ...         */
1267
1268                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1269                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1270                         /* implicit null-pointer check */
1271                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1272                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1273                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1274                         M_STRH(s3, REG_ITMP1, OFFSET(java_chararray_t, data[0]));
1275                         break;
1276
1277                 case ICMD_SASTORE:    /* ..., arrayref, index, value  ==> ...         */
1278
1279                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1280                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1281                         /* implicit null-pointer check */
1282                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1283                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1284                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1285                         M_STRH(s3, REG_ITMP1, OFFSET(java_shortarray_t, data[0]));
1286                         break;
1287
1288                 case ICMD_IASTORE:    /* ..., arrayref, index, value  ==> ...         */
1289
1290                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1291                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1292                         /* implicit null-pointer check */
1293                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1294                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1295                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1296                         M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_intarray_t, data[0]));
1297                         break;
1298
1299                 case ICMD_LASTORE:    /* ..., arrayref, index, value  ==> ...         */
1300
1301                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1302                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1303                         /* implicit null-pointer check */
1304                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1305                         M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1306                         s3 = emit_load_s3(jd, iptr, REG_ITMP12_PACKED);
1307                         M_LST_INTERN(s3, REG_ITMP3, OFFSET(java_longarray_t, data[0]));
1308                         break;
1309
1310                 case ICMD_FASTORE:    /* ..., arrayref, index, value  ==> ...         */
1311
1312                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1313                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1314                         /* implicit null-pointer check */
1315                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1316                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1317 #if !defined(ENABLE_SOFTFLOAT)
1318                         s3 = emit_load_s3(jd, iptr, REG_FTMP1);
1319                         M_FST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1320 #else
1321                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1322                         M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1323 #endif
1324                         break;
1325
1326                 case ICMD_DASTORE:    /* ..., arrayref, index, value  ==> ...         */
1327
1328                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1329                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1330                         /* implicit null-pointer check */
1331                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1332                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 3)); /* REG_ITMP1 = s1 + 8 * s2 */
1333 #if !defined(ENABLE_SOFTFLOAT)
1334                         s3 = emit_load_s3(jd, iptr, REG_FTMP1);
1335                         M_DST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray_t, data[0]));
1336 #else
1337                         s3 = emit_load_s3(jd, iptr, REG_ITMP23_PACKED);
1338                         M_LST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray_t, data[0]));
1339 #endif
1340                         break;
1341
1342                 case ICMD_AASTORE:    /* ..., arrayref, index, value  ==> ...         */
1343
1344                         s1 = emit_load_s1(jd, iptr, REG_A0);
1345                         s2 = emit_load_s2(jd, iptr, REG_ITMP1);
1346                         s3 = emit_load_s3(jd, iptr, REG_A1);
1347
1348                         /* implicit null-pointer check */
1349                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1350
1351                         /* move arguments to argument registers */
1352                         M_INTMOVE(s1, REG_A0);
1353                         M_INTMOVE(s3, REG_A1);
1354
1355                         /* call builtin function */
1356                         disp = dseg_add_functionptr(cd, BUILTIN_canstore);
1357                         M_DSEG_BRANCH(disp);
1358
1359                         /* recompute pv */
1360                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
1361                         M_RECOMPUTE_PV(s1);
1362
1363                         /* check resturn value of builtin */
1364                         emit_exception_check(cd, iptr);
1365
1366                         /* finally store address into array */
1367                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1368                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1369                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1370                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1371                         M_STR_INTERN(s3, REG_ITMP1, OFFSET(java_objectarray_t, data[0]));
1372                         break;
1373
1374                 case ICMD_GETSTATIC:  /* ...  ==> ..., value                          */
1375
1376                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1377                                 uf        = iptr->sx.s23.s3.uf;
1378                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1379                                 disp      = dseg_add_unique_address(cd, NULL);
1380
1381                                 patcher_add_patch_ref(jd, PATCHER_get_putstatic, uf, disp);
1382
1383                                 if (opt_showdisassemble)
1384                                         M_NOP;
1385                         }
1386                         else {
1387                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1388                                 fieldtype = fi->type;
1389                                 disp      = dseg_add_address(cd, fi->value);
1390
1391                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1392                                         patcher_add_patch_ref(jd, PATCHER_initialize_class,
1393                                                             fi->class, 0);
1394
1395                                         if (opt_showdisassemble)
1396                                                 M_NOP;
1397                                 }
1398                         }
1399
1400                         M_DSEG_LOAD(REG_ITMP3, disp);
1401                         switch (fieldtype) {
1402                         case TYPE_INT:
1403 #if defined(ENABLE_SOFTFLOAT)
1404                         case TYPE_FLT:
1405 #endif
1406                         case TYPE_ADR:
1407                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1408                                 M_ILD_INTERN(d, REG_ITMP3, 0);
1409                                 break;
1410                         case TYPE_LNG:
1411 #if defined(ENABLE_SOFTFLOAT)
1412                         case TYPE_DBL:
1413 #endif
1414                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1415                                 M_LLD_INTERN(d, REG_ITMP3, 0);
1416                                 break;
1417 #if !defined(ENABLE_SOFTFLOAT)
1418                         case TYPE_FLT:
1419                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1420                                 M_FLD_INTERN(d, REG_ITMP3, 0);
1421                                 break;
1422                         case TYPE_DBL:
1423                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1424                                 M_DLD_INTERN(d, REG_ITMP3, 0);
1425                                 break;
1426 #endif
1427                         default:
1428                                 assert(0);
1429                         }
1430                         emit_store_dst(jd, iptr, d);
1431                         break;
1432
1433                 case ICMD_PUTSTATIC:  /* ..., value  ==> ...                          */
1434
1435                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1436                                 uf        = iptr->sx.s23.s3.uf;
1437                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1438                                 disp      = dseg_add_unique_address(cd, NULL);
1439
1440                                 patcher_add_patch_ref(jd, PATCHER_get_putstatic, uf, disp);
1441
1442                                 if (opt_showdisassemble)
1443                                         M_NOP;
1444                         }
1445                         else {
1446                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1447                                 fieldtype = fi->type;
1448                                 disp      = dseg_add_address(cd, fi->value);
1449
1450                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1451                                         patcher_add_patch_ref(jd, PATCHER_initialize_class,
1452                                                             fi->class, 0);
1453
1454                                         if (opt_showdisassemble)
1455                                                 M_NOP;
1456                                 }
1457                         }
1458
1459                         M_DSEG_LOAD(REG_ITMP3, disp);
1460                         switch (fieldtype) {
1461                         case TYPE_INT:
1462 #if defined(ENABLE_SOFTFLOAT)
1463                         case TYPE_FLT:
1464 #endif
1465                         case TYPE_ADR:
1466                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1467                                 M_IST_INTERN(s1, REG_ITMP3, 0);
1468                                 break;
1469                         case TYPE_LNG:
1470 #if defined(ENABLE_SOFTFLOAT)
1471                         case TYPE_DBL:
1472 #endif
1473                                 s1 = emit_load_s1(jd, iptr, REG_ITMP12_PACKED);
1474                                 M_LST_INTERN(s1, REG_ITMP3, 0);
1475                                 break;
1476 #if !defined(ENABLE_SOFTFLOAT)
1477                         case TYPE_FLT:
1478                                 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1479                                 M_FST_INTERN(s1, REG_ITMP3, 0);
1480                                 break;
1481                         case TYPE_DBL:
1482                                 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1483                                 M_DST_INTERN(s1, REG_ITMP3, 0);
1484                                 break;
1485 #endif
1486                         default:
1487                                 assert(0);
1488                         }
1489                         break;
1490
1491                 case ICMD_GETFIELD:   /* ..., objectref, value  ==> ...               */
1492
1493                         s1 = emit_load_s1(jd, iptr, REG_ITMP3);
1494                         emit_nullpointer_check(cd, iptr, s1);
1495
1496
1497                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1498                                 uf        = iptr->sx.s23.s3.uf;
1499                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1500                                 disp      = 0;
1501                         }
1502                         else {
1503                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1504                                 fieldtype = fi->type;
1505                                 disp      = fi->offset;
1506                         }
1507
1508 #if !defined(ENABLE_SOFTFLOAT)
1509                         /* HACK: softnull checks on floats */
1510                         if (!INSTRUCTION_MUST_CHECK(iptr) && IS_FLT_DBL_TYPE(fieldtype))
1511                                 emit_nullpointer_check_force(cd, iptr, s1);
1512 #endif
1513
1514                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1515                                 /* XXX REMOVE ME */
1516                                 uf = iptr->sx.s23.s3.uf;
1517
1518                                 patcher_add_patch_ref(jd, PATCHER_get_putfield, uf, 0);
1519
1520                                 if (opt_showdisassemble)
1521                                         M_NOP;
1522                         }
1523
1524                         switch (fieldtype) {
1525                         case TYPE_INT:
1526 #if defined(ENABLE_SOFTFLOAT)
1527                         case TYPE_FLT:
1528 #endif
1529                         case TYPE_ADR:
1530                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1531                                 M_ILD(d, s1, disp);
1532                                 break;
1533                         case TYPE_LNG:
1534 #if defined(ENABLE_SOFTFLOAT)
1535                         case TYPE_DBL:
1536 #endif
1537                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1538                                 M_LLD(d, s1, disp);
1539                                 break;
1540 #if !defined(ENABLE_SOFTFLOAT)
1541                         case TYPE_FLT:
1542                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1543                                 M_FLD(d, s1, disp);
1544                                 break;
1545                         case TYPE_DBL:
1546                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1547                                 M_DLD(d, s1, disp);
1548                                 break;
1549 #endif
1550                         default:
1551                                 assert(0);
1552                         }
1553                         emit_store_dst(jd, iptr, d);
1554                         break;
1555
1556                 case ICMD_PUTFIELD:   /* ..., objectref, value  ==> ...               */
1557
1558                         s1 = emit_load_s1(jd, iptr, REG_ITMP3);
1559                         emit_nullpointer_check(cd, iptr, s1);
1560
1561                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1562                                 uf        = iptr->sx.s23.s3.uf;
1563                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1564                                 disp      = 0;
1565                         }
1566                         else {
1567                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1568                                 fieldtype = fi->type;
1569                                 disp      = fi->offset;
1570                         }
1571
1572 #if !defined(ENABLE_SOFTFLOAT)
1573                         /* HACK: softnull checks on floats */
1574                         if (!INSTRUCTION_MUST_CHECK(iptr) && IS_FLT_DBL_TYPE(fieldtype))
1575                                 emit_nullpointer_check_force(cd, iptr, s1);
1576 #endif
1577
1578                         switch (fieldtype) {
1579                         case TYPE_INT:
1580 #if defined(ENABLE_SOFTFLOAT)
1581                         case TYPE_FLT:
1582 #endif
1583                         case TYPE_ADR:
1584                                 s2 = emit_load_s2(jd, iptr, REG_ITMP1);
1585                                 break;
1586 #if defined(ENABLE_SOFTFLOAT)
1587                         case TYPE_DBL: /* fall through */
1588 #endif
1589                         case TYPE_LNG:
1590                                 s2 = emit_load_s2(jd, iptr, REG_ITMP12_PACKED);
1591                                 break;
1592 #if !defined(ENABLE_SOFTFLOAT)
1593                         case TYPE_FLT:
1594                         case TYPE_DBL:
1595                                 s2 = emit_load_s2(jd, iptr, REG_FTMP1);
1596                                 break;
1597 #endif
1598                         default:
1599                                 assert(0);
1600                         }
1601
1602                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1603                                 /* XXX REMOVE ME */
1604                                 uf = iptr->sx.s23.s3.uf;
1605
1606                                 patcher_add_patch_ref(jd, PATCHER_get_putfield, uf, 0);
1607
1608                                 if (opt_showdisassemble)
1609                                         M_NOP;
1610                         }
1611
1612                         switch (fieldtype) {
1613                         case TYPE_INT:
1614 #if defined(ENABLE_SOFTFLOAT)
1615                         case TYPE_FLT:
1616 #endif
1617                         case TYPE_ADR:
1618                                 M_IST(s2, s1, disp);
1619                                 break;
1620                         case TYPE_LNG:
1621 #if defined(ENABLE_SOFTFLOAT)
1622                         case TYPE_DBL:
1623 #endif
1624                                 M_LST(s2, s1, disp);
1625                                 break;
1626 #if !defined(ENABLE_SOFTFLOAT)
1627                         case TYPE_FLT:
1628                                 M_FST(s2, s1, disp);
1629                                 break;
1630                         case TYPE_DBL:
1631                                 M_DST(s2, s1, disp);
1632                                 break;
1633 #endif
1634                         default:
1635                                 assert(0);
1636                         }
1637                         break;
1638
1639
1640                 /* branch operations **************************************************/
1641
1642                 case ICMD_ATHROW:       /* ..., objectref ==> ... (, objectref)       */
1643
1644                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1645                         M_INTMOVE(s1, REG_ITMP1_XPTR);
1646                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1647                                 patcher_add_patch_ref(jd, PATCHER_resolve_class,
1648                                                                         iptr->sx.s23.s2.uc, 0);
1649
1650                                 if (opt_showdisassemble)
1651                                         M_NOP;
1652                         }
1653                         disp = dseg_add_functionptr(cd, asm_handle_exception);
1654                         M_DSEG_LOAD(REG_ITMP3, disp);
1655                         M_MOV(REG_ITMP2_XPC, REG_PC);
1656                         M_MOV(REG_PC, REG_ITMP3);
1657                         M_NOP;              /* nop ensures that XPC is less than the end  */
1658                                             /* of basic block                             */
1659                         break;
1660
1661                 case ICMD_GOTO:         /* ... ==> ...                                */
1662                 case ICMD_RET:
1663
1664                         emit_br(cd, iptr->dst.block);
1665                         break;
1666
1667                 case ICMD_JSR:          /* ... ==> ...                                */
1668
1669                         emit_br(cd, iptr->sx.s23.s3.jsrtarget.block);
1670                         break;
1671
1672                 case ICMD_IFNULL:       /* ..., value ==> ...                         */
1673                 case ICMD_IFNONNULL:
1674
1675                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1676                         M_TEQ_IMM(s1, 0);
1677                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFNULL, BRANCH_OPT_NONE);
1678                         break;
1679
1680                 case ICMD_IFLT:         /* ..., value ==> ...                         */
1681                 case ICMD_IFLE:         /* op1 = target JavaVM pc, val.i = constant   */
1682                 case ICMD_IFGT:
1683                 case ICMD_IFGE:
1684                 case ICMD_IFEQ:
1685                 case ICMD_IFNE:
1686
1687                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1688                         M_COMPARE(s1, iptr->sx.val.i);
1689                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFEQ, BRANCH_OPT_NONE);
1690                         break;
1691
1692                 case ICMD_IF_LEQ:       /* ..., value ==> ...                         */
1693
1694                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1695                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1696                         if (iptr->sx.val.l == 0) {
1697                                 M_ORR_S(s1, s2, REG_ITMP3);
1698                         }
1699                         else {
1700                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1701                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1702                                 M_CMP(s1, REG_ITMP3);*/
1703                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1704                                 M_CMPEQ(s2, REG_ITMP3);
1705                         }
1706                         emit_beq(cd, iptr->dst.block);
1707                         break;
1708
1709                 case ICMD_IF_LLT:       /* ..., value ==> ...                         */
1710
1711                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1712                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1713                         if (iptr->sx.val.l == 0) {
1714                                 /* if high word is less than zero, the whole long is too */
1715                                 M_CMP_IMM(s1, 0);
1716                                 emit_blt(cd, iptr->dst.block);
1717                         }
1718                         else {
1719                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1720                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1721                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1722                                 M_CMP(s1, REG_ITMP3);*/
1723                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1724                                 M_MOVGT_IMM(2, REG_ITMP1);
1725                                 M_MOVEQ_IMM(1, REG_ITMP1);
1726
1727                                 /* low compare: x=x-1(ifLO) */
1728                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1729                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1730                                 M_CMP(s2, REG_ITMP3);*/
1731                                 M_SUBLO_IMM(REG_ITMP1, REG_ITMP1, 1);
1732
1733                                 /* branch if (x LT 1) */
1734                                 M_CMP_IMM(REG_ITMP1, 1);
1735                                 emit_blt(cd, iptr->dst.block);
1736                         }
1737                         break;
1738
1739                 case ICMD_IF_LLE:       /* ..., value ==> ...                         */
1740
1741                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1742                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1743                         if (iptr->sx.val.l == 0) {
1744                                 /* if high word is less than zero, the whole long is too  */
1745                                 M_CMP_IMM(s1, 0);
1746                                 emit_blt(cd, iptr->dst.block);
1747
1748                                 /* ... otherwise the low word has to be zero (tricky!) */
1749                                 M_CMPEQ_IMM(s2, 0);
1750                                 emit_beq(cd, iptr->dst.block);
1751                         }
1752                         else {
1753                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1754                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1755                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1756                                 M_CMP(s1, REG_ITMP3);*/
1757                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1758                                 M_MOVGT_IMM(2, REG_ITMP1);
1759                                 M_MOVEQ_IMM(1, REG_ITMP1);
1760
1761                                 /* low compare: x=x+1(ifHI) */
1762                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1763                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1764                                 M_CMP(s2, REG_ITMP3);*/
1765                                 M_ADDHI_IMM(REG_ITMP1, REG_ITMP1, 1);
1766
1767                                 /* branch if (x LE 1) */
1768                                 M_CMP_IMM(REG_ITMP1, 1);
1769                                 emit_ble(cd, iptr->dst.block);
1770                         }
1771                         break;
1772
1773                 case ICMD_IF_LGE:       /* ..., value ==> ...                         */
1774
1775                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1776                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1777                         if (iptr->sx.val.l == 0) {
1778                                 /* if high word is greater or equal zero, the whole long is too */
1779                                 M_CMP_IMM(s1, 0);
1780                                 emit_bge(cd, iptr->dst.block);
1781                         }
1782                         else {
1783                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1784                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1785                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1786                                 M_CMP(s1, REG_ITMP3);*/
1787                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1788                                 M_MOVGT_IMM(2, REG_ITMP1);
1789                                 M_MOVEQ_IMM(1, REG_ITMP1);
1790
1791                                 /* low compare: x=x-1(ifLO) */
1792                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1793                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1794                                 M_CMP(s2, REG_ITMP3);*/
1795                                 M_SUBLO_IMM(REG_ITMP1, REG_ITMP1, 1);
1796
1797                                 /* branch if (x GE 1) */
1798                                 M_CMP_IMM(REG_ITMP1, 1);
1799                                 emit_bge(cd, iptr->dst.block);
1800                         }
1801                         break;
1802
1803                 case ICMD_IF_LGT:       /* ..., value ==> ...                         */
1804
1805                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1806                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1807 #if 0
1808                         if (iptr->sx.val.l == 0) {
1809                                 /* if high word is greater than zero, the whole long is too */
1810                                 M_CMP_IMM(s1, 0);
1811                                 M_BGT(0);
1812                                 codegen_add_branch_ref(cd, iptr->dst.block);
1813
1814                                 /* ... or high was zero and low is non zero (tricky!) */
1815                                 M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1816                                 M_MOVLT_IMM(1, REG_ITMP3);
1817                                 M_ORR_S(REG_ITMP3, s2, REG_ITMP3);
1818                                 M_BNE(0);
1819                                 codegen_add_branch_ref(cd, iptr->dst.block);
1820                         }
1821                         else {
1822 #endif
1823                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1824                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1825                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1826                                 M_CMP(s1, REG_ITMP3);*/
1827                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1828                                 M_MOVGT_IMM(2, REG_ITMP1);
1829                                 M_MOVEQ_IMM(1, REG_ITMP1);
1830
1831                                 /* low compare: x=x+1(ifHI) */
1832                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1833                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1834                                 M_CMP(s2, REG_ITMP3);*/
1835                                 M_ADDHI_IMM(REG_ITMP1, REG_ITMP1, 1);
1836
1837                                 /* branch if (x GT 1) */
1838                                 M_CMP_IMM(REG_ITMP1, 1);
1839                                 emit_bgt(cd, iptr->dst.block);
1840 #if 0
1841                         }
1842 #endif
1843                         break;
1844
1845                 case ICMD_IF_LNE:       /* ..., value ==> ...                         */
1846
1847                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1848                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1849                         if (iptr->sx.val.l == 0) {
1850                                 M_ORR_S(s1, s2, REG_ITMP3);
1851                         }
1852                         else {
1853                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1854                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1855                                 M_CMP(s1, REG_ITMP3);*/
1856                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1857                                 M_CMPEQ(s2, REG_ITMP3);
1858                         }
1859                         emit_bne(cd, iptr->dst.block);
1860                         break;
1861
1862                 case ICMD_IF_ICMPEQ:    /* ..., value, value ==> ...                  */
1863                 case ICMD_IF_ICMPNE:
1864                 case ICMD_IF_ICMPLT:
1865                 case ICMD_IF_ICMPLE:
1866                 case ICMD_IF_ICMPGT:
1867                 case ICMD_IF_ICMPGE:
1868
1869                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1870                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1871                         M_CMP(s1, s2);
1872                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IF_ICMPEQ, BRANCH_OPT_NONE);
1873                         break;
1874
1875                 case ICMD_IF_ACMPEQ:    /* ..., value, value ==> ...                  */
1876                 case ICMD_IF_ACMPNE:
1877
1878                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1879                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1880                         M_CMP(s1, s2);
1881                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IF_ACMPEQ, BRANCH_OPT_NONE);
1882                         break;
1883
1884                 case ICMD_IF_LCMPEQ:    /* ..., 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_beq(cd, iptr->dst.block);
1896                         break;
1897
1898                 case ICMD_IF_LCMPNE:    /* ..., value, value ==> ...                  */
1899                                         /* op1 = target JavaVM pc                     */
1900
1901                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1902                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1903                         M_CMP(s1, s2);
1904
1905                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1906                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1907                         M_CMPEQ(s1, s2);
1908
1909                         emit_bne(cd, iptr->dst.block);
1910                         break;
1911
1912                 case ICMD_IF_LCMPLT:    /* ..., value, value ==> ...                  */
1913                                         /* op1 = target JavaVM pc                     */
1914
1915                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1916                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1917                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1918                         M_CMP(s1, s2);
1919                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1920                         M_MOVGT_IMM(2, REG_ITMP3);
1921                         M_MOVEQ_IMM(1, REG_ITMP3);
1922
1923                         /* low compare: x=x-1(ifLO) */
1924                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1925                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1926                         M_CMP(s1, s2);
1927                         M_SUBLO_IMM(REG_ITMP3, REG_ITMP3, 1);
1928
1929                         /* branch if (x LT 1) */
1930                         M_CMP_IMM(REG_ITMP3, 1);
1931                         emit_blt(cd, iptr->dst.block);
1932                         break;
1933
1934                 case ICMD_IF_LCMPLE:    /* ..., value, value ==> ...                  */
1935                                         /* op1 = target JavaVM pc                     */
1936
1937                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1938                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1939                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1940                         M_CMP(s1, s2);
1941                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1942                         M_MOVGT_IMM(2, REG_ITMP3);
1943                         M_MOVEQ_IMM(1, REG_ITMP3);
1944
1945                         /* low compare: x=x-1(ifLO) */
1946                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1947                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1948                         M_CMP(s1, s2);
1949                         M_ADDHI_IMM(REG_ITMP3, REG_ITMP3, 1);
1950
1951                         /* branch if (x LE 1) */
1952                         M_CMP_IMM(REG_ITMP3, 1);
1953                         emit_ble(cd, iptr->dst.block);
1954                         break;
1955
1956                 case ICMD_IF_LCMPGT:    /* ..., value, value ==> ...                  */
1957                                         /* op1 = target JavaVM pc                     */
1958
1959                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1960                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1961                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1962                         M_CMP(s1, s2);
1963                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1964                         M_MOVGT_IMM(2, REG_ITMP3);
1965                         M_MOVEQ_IMM(1, REG_ITMP3);
1966
1967                         /* low compare: x=x-1(ifLO) */
1968                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1969                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1970                         M_CMP(s1, s2);
1971                         M_ADDHI_IMM(REG_ITMP3, REG_ITMP3, 1);
1972
1973                         /* branch if (x GT 1) */
1974                         M_CMP_IMM(REG_ITMP3, 1);
1975                         emit_bgt(cd, iptr->dst.block);
1976                         break;
1977
1978                 case ICMD_IF_LCMPGE:    /* ..., value, value ==> ...                  */
1979                                         /* op1 = target JavaVM pc                     */
1980
1981                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1982                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1983                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1984                         M_CMP(s1, s2);
1985                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1986                         M_MOVGT_IMM(2, REG_ITMP3);
1987                         M_MOVEQ_IMM(1, REG_ITMP3);
1988
1989                         /* low compare: x=x-1(ifLO) */
1990                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1991                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1992                         M_CMP(s1, s2);
1993                         M_SUBLO_IMM(REG_ITMP3, REG_ITMP3, 1);
1994
1995                         /* branch if (x GE 1) */
1996                         M_CMP_IMM(REG_ITMP3, 1);
1997                         emit_bge(cd, iptr->dst.block);
1998                         break;
1999
2000                 case ICMD_TABLESWITCH:  /* ..., index ==> ...                         */
2001                         {
2002                         s4 i, l;
2003                         branch_target_t *table;
2004
2005                         table = iptr->dst.table;
2006
2007                         l = iptr->sx.s23.s2.tablelow;
2008                         i = iptr->sx.s23.s3.tablehigh;
2009
2010                         /* calculate new index (index - low) */
2011                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2012                         if (l  == 0) {
2013                                 M_INTMOVE(s1, REG_ITMP1);
2014                         } else if (IS_IMM(l)) {
2015                                 M_SUB_IMM(REG_ITMP1, s1, l);
2016                         } else {
2017                                 ICONST(REG_ITMP2, l);
2018                                 M_SUB(REG_ITMP1, s1, REG_ITMP2);
2019                         }
2020
2021                         /* range check (index <= high-low) */
2022                         i = i - l + 1;
2023                         M_COMPARE(REG_ITMP1, i-1);
2024                         emit_bugt(cd, table[0].block);
2025
2026                         /* build jump table top down and use address of lowest entry */
2027
2028                         table += i;
2029
2030                         while (--i >= 0) {
2031                                 dseg_add_target(cd, table->block);
2032                                 --table;
2033                         }
2034                         }
2035
2036                         /* length of dataseg after last dseg_add_target is used by load */
2037                         /* TODO: this loads from data-segment */
2038                         M_ADD(REG_ITMP2, REG_PV, REG_LSL(REG_ITMP1, 2));
2039                         M_LDR(REG_PC, REG_ITMP2, -(cd->dseglen));
2040                         break;
2041
2042                 case ICMD_LOOKUPSWITCH: /* ..., key ==> ...                           */
2043                         {
2044                         s4 i;
2045                         lookup_target_t *lookup;
2046
2047                         lookup = iptr->dst.lookup;
2048
2049                         i = iptr->sx.s23.s2.lookupcount;
2050
2051                         /* compare keys */
2052                         MCODECHECK((i<<2)+8);
2053                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2054
2055                         while (--i >= 0) {
2056                                 M_COMPARE(s1, lookup->value);
2057                                 emit_beq(cd, lookup->target.block);
2058                                 lookup++;
2059                         }
2060
2061                         /* default branch */
2062                         emit_br(cd, iptr->sx.s23.s3.lookupdefault.block);
2063                         }
2064                         break;
2065
2066                 case ICMD_FRETURN:      /* ..., retvalue ==> ...                      */
2067
2068 #if !defined(ENABLE_SOFTFLOAT)
2069                         REPLACEMENT_POINT_RETURN(cd, iptr);
2070                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
2071                         M_CAST_FLT_TO_INT_TYPED(VAROP(iptr->s1)->type, s1, REG_RESULT);
2072                         goto ICMD_RETURN_do;
2073 #endif
2074
2075                 case ICMD_IRETURN:      /* ..., retvalue ==> ...                      */
2076
2077                         REPLACEMENT_POINT_RETURN(cd, iptr);
2078                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2079                         M_INTMOVE(s1, REG_RESULT);
2080                         goto ICMD_RETURN_do;
2081
2082                 case ICMD_DRETURN:      /* ..., retvalue ==> ...                      */
2083
2084 #if !defined(ENABLE_SOFTFLOAT)
2085                         REPLACEMENT_POINT_RETURN(cd, iptr);
2086                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
2087                         M_CAST_FLT_TO_INT_TYPED(VAROP(iptr->s1)->type, s1, REG_RESULT_PACKED);
2088                         goto ICMD_RETURN_do;
2089 #endif
2090
2091                 case ICMD_LRETURN:      /* ..., retvalue ==> ...                      */
2092
2093                         REPLACEMENT_POINT_RETURN(cd, iptr);
2094                         s1 = emit_load_s1(jd, iptr, REG_RESULT_PACKED);
2095                         M_LNGMOVE(s1, REG_RESULT_PACKED);
2096                         goto ICMD_RETURN_do;
2097
2098                 case ICMD_ARETURN:      /* ..., retvalue ==> ...                      */
2099
2100                         REPLACEMENT_POINT_RETURN(cd, iptr);
2101                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2102                         M_INTMOVE(s1, REG_RESULT);
2103                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2104                                 patcher_add_patch_ref(jd, PATCHER_resolve_class,
2105                                                                         iptr->sx.s23.s2.uc, 0);
2106
2107                                 if (opt_showdisassemble)
2108                                         M_NOP;
2109                         }
2110                         goto ICMD_RETURN_do;
2111
2112                 case ICMD_RETURN:       /* ...  ==> ...                               */
2113
2114                         REPLACEMENT_POINT_RETURN(cd, iptr);
2115                         ICMD_RETURN_do:
2116
2117 #if !defined(NDEBUG)
2118                         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
2119                                 emit_verbosecall_exit(jd);
2120 #endif
2121
2122 #if defined(ENABLE_THREADS)
2123                         /* call monitorexit function */
2124
2125                         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
2126                                 /* stack offset for monitor argument */
2127
2128                                 s1 = rd->memuse * 8;
2129
2130                                 /* we need to save the proper return value */
2131
2132                                 switch (iptr->opc) {
2133                                 case ICMD_IRETURN:
2134                                 case ICMD_ARETURN:
2135                                 case ICMD_LRETURN:
2136                                 case ICMD_FRETURN: /* XXX TWISTI: is that correct? */
2137                                 case ICMD_DRETURN:
2138                                         M_STMFD(BITMASK_RESULT, REG_SP);
2139                                         s1 += 2 * 4;
2140                                         break;
2141                                 }
2142
2143                                 M_LDR(REG_A0, REG_SP, s1);
2144                                 disp = dseg_add_functionptr(cd, LOCK_monitor_exit);
2145                                 M_DSEG_BRANCH(disp);
2146
2147                                 /* we no longer need PV here, no more loading */
2148                                 /*s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2149                                 M_RECOMPUTE_PV(s1);*/
2150
2151                                 switch (iptr->opc) {
2152                                 case ICMD_IRETURN:
2153                                 case ICMD_ARETURN:
2154                                 case ICMD_LRETURN:
2155                                 case ICMD_FRETURN: /* XXX TWISTI: is that correct? */
2156                                 case ICMD_DRETURN:
2157                                         M_LDMFD(BITMASK_RESULT, REG_SP);
2158                                         break;
2159                                 }
2160                         }
2161 #endif
2162
2163                         /* deallocate stackframe for spilled variables */
2164
2165                         if ((cd->stackframesize / 4 - savedregs_num) > 0)
2166                                 M_ADD_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - savedregs_num);
2167
2168                         /* restore callee saved registers + do return */
2169
2170                         if (savedregs_bitmask) {
2171                                 if (!jd->isleafmethod) {
2172                                         savedregs_bitmask &= ~(1<<REG_LR);
2173                                         savedregs_bitmask |= (1<<REG_PC);
2174                                 }
2175                                 M_LDMFD(savedregs_bitmask, REG_SP);
2176                         }
2177
2178                         /* if LR was not on stack, we need to return manually */
2179
2180                         if (jd->isleafmethod)
2181                                 M_MOV(REG_PC, REG_LR);
2182                         break;
2183
2184                 case ICMD_BUILTIN:      /* ..., arg1, arg2, arg3 ==> ...              */
2185
2186                         bte = iptr->sx.s23.s3.bte;
2187                         md  = bte->md;
2188                         goto ICMD_INVOKE_do;
2189
2190                 case ICMD_INVOKESTATIC: /* ..., [arg1, [arg2 ...]] ==> ...            */
2191                 case ICMD_INVOKESPECIAL:/* ..., objectref, [arg1, [arg2 ...]] ==> ... */
2192                 case ICMD_INVOKEVIRTUAL:/* op1 = arg count, val.a = method pointer    */
2193                 case ICMD_INVOKEINTERFACE:
2194
2195                         REPLACEMENT_POINT_INVOKE(cd, iptr);
2196
2197                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2198                                 lm = NULL;
2199                                 um = iptr->sx.s23.s3.um;
2200                                 md = um->methodref->parseddesc.md;
2201                         }
2202                         else {
2203                                 lm = iptr->sx.s23.s3.fmiref->p.method;
2204                                 um = NULL;
2205                                 md = lm->parseddesc;
2206                         }
2207
2208                 ICMD_INVOKE_do:
2209                         /* copy arguments to registers or stack location */
2210
2211                         s3 = md->paramcount;
2212
2213                         MCODECHECK((s3 << 1) + 64);
2214
2215                         for (s3 = s3 - 1; s3 >= 0; s3--) {
2216                                 var = VAR(iptr->sx.s23.s2.args[s3]);
2217                                 d   = md->params[s3].regoff;
2218
2219                                 if (var->flags & PREALLOC) /* argument was precolored? */
2220                                         continue;
2221
2222                                 /* TODO: document me */
2223 #if !defined(ENABLE_SOFTFLOAT)
2224                                 if (IS_INT_LNG_TYPE(var->type)) {
2225 #endif /* !defined(ENABLE_SOFTFLOAT) */
2226                                         if (!md->params[s3].inmemory) {
2227                                                 s1 = emit_load(jd, iptr, var, d);
2228
2229                                                 if (IS_2_WORD_TYPE(var->type))
2230                                                         M_LNGMOVE(s1, d);
2231                                                 else
2232                                                         M_INTMOVE(s1, d);
2233                                         }
2234                                         else {
2235                                                 if (IS_2_WORD_TYPE(var->type)) {
2236                                                         s1 = emit_load(jd, iptr, var, REG_ITMP12_PACKED);
2237                                                         M_LST(s1, REG_SP, d);
2238                                                 }
2239                                                 else {
2240                                                         s1 = emit_load(jd, iptr, var, REG_ITMP1);
2241                                                         M_IST(s1, REG_SP, d);
2242                                                 }
2243                                         }
2244 #if !defined(ENABLE_SOFTFLOAT)
2245                                 }
2246                                 else {
2247                                         if (!md->params[s3].inmemory) {
2248                                                 s1 = emit_load(jd, iptr, var, REG_FTMP1);
2249                                                 M_CAST_FLT_TO_INT_TYPED(var->type, s1, d);
2250                                         }
2251                                         else {
2252                                                 s1 = emit_load(jd, iptr, var, REG_FTMP1);
2253                                                 if (IS_2_WORD_TYPE(var->type))
2254                                                         M_DST(s1, REG_SP, d);
2255                                                 else
2256                                                         M_FST(s1, REG_SP, d);
2257                                         }
2258                                 }
2259 #endif /* !defined(ENABLE_SOFTFLOAT) */
2260                         }
2261
2262                         switch (iptr->opc) {
2263                         case ICMD_BUILTIN:
2264                                 disp = dseg_add_functionptr(cd, bte->fp);
2265
2266                                 M_DSEG_LOAD(REG_PV, disp); /* pointer to built-in-function */
2267
2268                                 /* generate the actual call */
2269
2270                                 M_MOV(REG_LR, REG_PC);
2271                                 M_MOV(REG_PC, REG_PV);
2272                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2273                                 M_RECOMPUTE_PV(s1);
2274
2275                                 emit_exception_check(cd, iptr);
2276                                 break;
2277
2278                         case ICMD_INVOKESPECIAL:
2279                                 emit_nullpointer_check(cd, iptr, REG_A0);
2280                                 /* fall through */
2281
2282                         case ICMD_INVOKESTATIC:
2283                                 if (lm == NULL) {
2284                                         disp = dseg_add_unique_address(cd, NULL);
2285
2286                                         patcher_add_patch_ref(jd, PATCHER_invokestatic_special,
2287                                                                                 um, disp);
2288
2289                                         if (opt_showdisassemble)
2290                                                 M_NOP;
2291                                 }
2292                                 else
2293                                         disp = dseg_add_address(cd, lm->stubroutine);
2294
2295                                 M_DSEG_LOAD(REG_PV, disp);            /* Pointer to method */
2296
2297                                 /* generate the actual call */
2298
2299                                 M_MOV(REG_LR, REG_PC);
2300                                 M_MOV(REG_PC, REG_PV);
2301                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2302                                 M_RECOMPUTE_PV(s1);
2303                                 break;
2304
2305                         case ICMD_INVOKEVIRTUAL:
2306                                 if (lm == NULL) {
2307                                         patcher_add_patch_ref(jd, PATCHER_invokevirtual, um, 0);
2308
2309                                         if (opt_showdisassemble)
2310                                                 M_NOP;
2311
2312                                         s1 = 0;
2313                                 }
2314                                 else
2315                                         s1 = OFFSET(vftbl_t, table[0]) +
2316                                                 sizeof(methodptr) * lm->vftblindex;
2317
2318                                 /* implicit null-pointer check */
2319                                 M_LDR_INTERN(REG_METHODPTR, REG_A0,
2320                                                          OFFSET(java_object_t, vftbl));
2321                                 M_LDR_INTERN(REG_PV, REG_METHODPTR, s1);
2322
2323                                 /* generate the actual call */
2324
2325                                 M_MOV(REG_LR, REG_PC);
2326                                 M_MOV(REG_PC, REG_PV);
2327                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2328                                 M_RECOMPUTE_PV(s1);
2329                                 break;
2330
2331                         case ICMD_INVOKEINTERFACE:
2332                                 if (lm == NULL) {
2333                                         patcher_add_patch_ref(jd, PATCHER_invokeinterface, um, 0);
2334
2335                                         if (opt_showdisassemble)
2336                                                 M_NOP;
2337
2338                                         s1 = 0;
2339                                         s2 = 0;
2340                                 }
2341                                 else {
2342                                         s1 = OFFSET(vftbl_t, interfacetable[0]) -
2343                                                 sizeof(methodptr*) * lm->class->index;
2344                                         s2 = sizeof(methodptr) * (lm - lm->class->methods);
2345                                 }
2346
2347                                 /* implicit null-pointer check */
2348                                 M_LDR_INTERN(REG_METHODPTR, REG_A0,
2349                                                          OFFSET(java_object_t, vftbl));
2350                                 M_LDR_INTERN(REG_METHODPTR, REG_METHODPTR, s1);
2351                                 M_LDR_INTERN(REG_PV, REG_METHODPTR, s2);
2352
2353                                 /* generate the actual call */
2354
2355                                 M_MOV(REG_LR, REG_PC);
2356                                 M_MOV(REG_PC, REG_PV);
2357                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2358                                 M_RECOMPUTE_PV(s1);
2359                                 break;
2360                         }
2361
2362                         /* store size of call code in replacement point */
2363                         REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2364
2365                         /* store return value */
2366
2367                         d = md->returntype.type;
2368
2369 #if !defined(__SOFTFP__)
2370                         /* TODO: this is only a hack, since we use R0/R1 for float
2371                            return!  this depends on gcc; it is independent from
2372                            our ENABLE_SOFTFLOAT define */
2373                         if (iptr->opc == ICMD_BUILTIN && d != TYPE_VOID && IS_FLT_DBL_TYPE(d)) {
2374 #if 0 && !defined(NDEBUG)
2375                                 dolog("BUILTIN that returns float or double (%s.%s)", m->class->name->text, m->name->text);
2376 #endif
2377                                 /* we cannot use this macro, since it is not defined
2378                                    in ENABLE_SOFTFLOAT M_CAST_FLT_TO_INT_TYPED(d,
2379                                    REG_FRESULT, REG_RESULT_TYPED(d)); */
2380                                 if (IS_2_WORD_TYPE(d)) {
2381                                         DCD(0xed2d8102); /* stfd    f0, [sp, #-8]! */
2382                                         M_LDRD_UPDATE(REG_RESULT_PACKED, REG_SP, 8);
2383                                 } else {
2384                                         DCD(0xed2d0101); /* stfs    f0, [sp, #-4]!*/
2385                                         M_LDR_UPDATE(REG_RESULT, REG_SP, 4);
2386                                 }
2387                         }
2388 #endif
2389
2390                         if (d != TYPE_VOID) {
2391 #if !defined(ENABLE_SOFTFLOAT)
2392                                 if (IS_INT_LNG_TYPE(d)) {
2393 #endif /* !defined(ENABLE_SOFTFLOAT) */
2394                                         if (IS_2_WORD_TYPE(d)) {
2395                                                 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
2396                                                 M_LNGMOVE(REG_RESULT_PACKED, s1);
2397                                         }
2398                                         else {
2399                                                 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2400                                                 M_INTMOVE(REG_RESULT, s1);
2401                                         }
2402
2403 #if !defined(ENABLE_SOFTFLOAT)
2404                                 } else {
2405                                         s1 = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
2406                                         M_CAST_INT_TO_FLT_TYPED(VAROP(iptr->dst)->type, REG_RESULT_TYPED(VAROP(iptr->dst)->type), s1);
2407                                 }
2408 #endif /* !defined(ENABLE_SOFTFLOAT) */
2409
2410                                 emit_store_dst(jd, iptr, s1);
2411                         }
2412                         break;
2413
2414                 case ICMD_CHECKCAST:  /* ..., objectref ==> ..., objectref            */
2415
2416                         if (!(iptr->flags.bits & INS_FLAG_ARRAY)) {
2417                                 /* object type cast-check */
2418
2419                         classinfo *super;
2420                         s4         superindex;
2421
2422                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2423                                 super      = NULL;
2424                                 superindex = 0;
2425                         }
2426                         else {
2427                                 super      = iptr->sx.s23.s3.c.cls;
2428                                 superindex = super->index;
2429                         }
2430
2431                                 if ((super == NULL) || !(super->flags & ACC_INTERFACE))
2432                                         CODEGEN_CRITICAL_SECTION_NEW;
2433
2434                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2435
2436                         /* if class is not resolved, check which code to call */
2437
2438                         if (super == NULL) {
2439                                 M_TST(s1, s1);
2440                                 emit_label_beq(cd, BRANCH_LABEL_1);
2441
2442                                 disp = dseg_add_unique_s4(cd, 0); /* super->flags */
2443                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_flags,
2444                                                     iptr->sx.s23.s3.c.ref, disp);
2445
2446                                 if (opt_showdisassemble)
2447                                         M_NOP;
2448
2449                                 M_DSEG_LOAD(REG_ITMP2, disp);
2450                                 disp = dseg_add_s4(cd, ACC_INTERFACE);
2451                                 M_DSEG_LOAD(REG_ITMP3, disp);
2452                                 M_TST(REG_ITMP2, REG_ITMP3);
2453                                 emit_label_beq(cd, BRANCH_LABEL_2);
2454                         }
2455
2456                         /* interface checkcast code */
2457
2458                         if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2459                                 if ((super == NULL) || !IS_IMM(superindex)) {
2460                                         disp = dseg_add_unique_s4(cd, superindex);
2461                                 }
2462                                 if (super == NULL) {
2463                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_index,
2464                                                             iptr->sx.s23.s3.c.ref, disp);
2465
2466                                         if (opt_showdisassemble)
2467                                                 M_NOP;
2468                                 }
2469                                 else {
2470                                         M_TST(s1, s1);
2471                                         emit_label_beq(cd, BRANCH_LABEL_3);
2472                                 }
2473
2474                                 M_LDR_INTERN(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
2475                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, interfacetablelength));
2476
2477                                 /* we put unresolved or non-immediate superindices onto dseg */
2478                                 if ((super == NULL) || !IS_IMM(superindex)) {
2479                                         /* disp was computed before we added the patcher */
2480                                         M_DSEG_LOAD(REG_ITMP2, disp);
2481                                         M_CMP(REG_ITMP3, REG_ITMP2);
2482                                 } else {
2483                                         assert(IS_IMM(superindex));
2484                                         M_CMP_IMM(REG_ITMP3, superindex);
2485                                 }
2486
2487                                 emit_classcast_check(cd, iptr, BRANCH_LE, REG_ITMP3, s1);
2488
2489                                 /* if we loaded the superindex out of the dseg above, we do
2490                                    things differently here! */
2491                                 if ((super == NULL) || !IS_IMM(superindex)) {
2492
2493                                         M_LDR_INTERN(REG_ITMP3, s1, OFFSET(java_object_t, vftbl));
2494
2495                                         /* this assumes something */
2496                                         assert(OFFSET(vftbl_t, interfacetable[0]) == 0);
2497
2498                                         /* this does: REG_ITMP3 - superindex * sizeof(methodptr*) */
2499                                         assert(sizeof(methodptr*) == 4);
2500                                         M_SUB(REG_ITMP2, REG_ITMP3, REG_LSL(REG_ITMP2, 2));
2501
2502                                         s2 = 0;
2503
2504                                 } else {
2505
2506                                         s2 = OFFSET(vftbl_t, interfacetable[0]) -
2507                                                                 superindex * sizeof(methodptr*);
2508
2509                                 }
2510
2511                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, s2);
2512                                 M_TST(REG_ITMP3, REG_ITMP3);
2513                                 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_ITMP3, s1);
2514
2515                                 if (super == NULL)
2516                                         emit_label_br(cd, BRANCH_LABEL_4);
2517                                 else
2518                                         emit_label(cd, BRANCH_LABEL_3);
2519                         }
2520
2521                         /* class checkcast code */
2522
2523                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2524                                 if (super == NULL) {
2525                                         emit_label(cd, BRANCH_LABEL_2);
2526
2527                                         disp = dseg_add_unique_address(cd, NULL);
2528
2529                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_vftbl,
2530                                                             iptr->sx.s23.s3.c.ref,
2531                                                                                 disp);
2532
2533                                         if (opt_showdisassemble)
2534                                                 M_NOP;
2535                                 }
2536                                 else {
2537                                         disp = dseg_add_address(cd, super->vftbl);
2538
2539                                         M_TST(s1, s1);
2540                                         emit_label_beq(cd, BRANCH_LABEL_5);
2541                                 }
2542
2543                                 M_LDR_INTERN(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
2544                                 M_DSEG_LOAD(REG_ITMP3, disp);
2545
2546                                 CODEGEN_CRITICAL_SECTION_START;
2547
2548                                 M_LDR_INTERN(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, baseval));
2549                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, baseval));
2550                                 M_SUB(REG_ITMP2, REG_ITMP2, REG_ITMP3);
2551                                 M_DSEG_LOAD(REG_ITMP3, disp);
2552                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, diffval));
2553
2554                                 CODEGEN_CRITICAL_SECTION_END;
2555
2556                                 M_CMP(REG_ITMP2, REG_ITMP3);
2557                                 emit_classcast_check(cd, iptr, BRANCH_UGT, 0, s1);
2558
2559                                 if (super != NULL)
2560                                         emit_label(cd, BRANCH_LABEL_5);
2561                         }
2562
2563                         if (super == NULL) {
2564                                 emit_label(cd, BRANCH_LABEL_1);
2565                                 emit_label(cd, BRANCH_LABEL_4);
2566                         }
2567
2568                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
2569                         }
2570                         else {
2571                                 /* array type cast-check */
2572
2573                                 s1 = emit_load_s1(jd, iptr, REG_A0);
2574                                 M_INTMOVE(s1, REG_A0);
2575
2576                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2577                                         disp = dseg_add_unique_address(cd, NULL);
2578
2579                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
2580                                                                                 iptr->sx.s23.s3.c.ref,
2581                                                                                 disp);
2582
2583                                         if (opt_showdisassemble)
2584                                                 M_NOP;
2585                                 }
2586                                 else
2587                                         disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2588
2589                                 M_DSEG_LOAD(REG_A1, disp);
2590                                 disp = dseg_add_functionptr(cd, BUILTIN_arraycheckcast);
2591                                 M_DSEG_BRANCH(disp);
2592
2593                                 /* recompute pv */
2594                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2595                                 M_RECOMPUTE_PV(disp);
2596
2597                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2598                                 M_TST(REG_RESULT, REG_RESULT);
2599                                 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_RESULT, s1);
2600
2601                                 d = codegen_reg_of_dst(jd, iptr, s1);
2602                         }
2603
2604                         M_INTMOVE(s1, d);
2605                         emit_store_dst(jd, iptr, d);
2606                         break;
2607
2608                 case ICMD_INSTANCEOF: /* ..., objectref ==> ..., intresult            */
2609
2610                         {
2611                         classinfo *super;
2612                         s4         superindex;
2613
2614                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2615                                 super      = NULL;
2616                                 superindex = 0;
2617                         }
2618                         else {
2619                                 super      = iptr->sx.s23.s3.c.cls;
2620                                 superindex = super->index;
2621                         }
2622
2623                         if ((super == NULL) || !(super->flags & ACC_INTERFACE))
2624                                 CODEGEN_CRITICAL_SECTION_NEW;
2625
2626                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2627                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
2628
2629                         if (s1 == d) {
2630                                 M_MOV(REG_ITMP1, s1);
2631                                 s1 = REG_ITMP1;
2632                         }
2633
2634                         /* if class is not resolved, check which code to call */
2635
2636                         if (super == NULL) {
2637                                 M_EOR(d, d, d);
2638
2639                                 M_TST(s1, s1);
2640                                 emit_label_beq(cd, BRANCH_LABEL_1);
2641
2642                                 disp = dseg_add_unique_s4(cd, 0); /* super->flags */
2643                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_flags,
2644                                                     iptr->sx.s23.s3.c.ref, disp);
2645
2646                                 if (opt_showdisassemble)
2647                                         M_NOP;
2648
2649                                 M_DSEG_LOAD(REG_ITMP2, disp);
2650                                 disp = dseg_add_s4(cd, ACC_INTERFACE);
2651                                 M_DSEG_LOAD(REG_ITMP3, disp);
2652                                 M_TST(REG_ITMP2, REG_ITMP3);
2653                                 emit_label_beq(cd, BRANCH_LABEL_2);
2654                         }
2655
2656                         /* interface checkcast code */
2657
2658                         if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2659                                 if ((super == NULL) || !IS_IMM(superindex)) {
2660                                         disp = dseg_add_unique_s4(cd, superindex);
2661                                 }
2662                                 if (super == NULL) {
2663                                         /* If d == REG_ITMP2, then it's destroyed in check
2664                                            code above.  */
2665                                         if (d == REG_ITMP2)
2666                                                 M_EOR(d, d, d);
2667
2668                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_index,
2669                                                             iptr->sx.s23.s3.c.ref, disp);
2670
2671                                         if (opt_showdisassemble)
2672                                                 M_NOP;
2673                                 }
2674                                 else {
2675                                         M_EOR(d, d, d);
2676                                         M_TST(s1, s1);
2677                                         emit_label_beq(cd, BRANCH_LABEL_3);
2678                                 }
2679
2680                                 M_LDR_INTERN(REG_ITMP1, s1, OFFSET(java_object_t, vftbl));
2681                                 M_LDR_INTERN(REG_ITMP3,
2682                                                          REG_ITMP1, OFFSET(vftbl_t, interfacetablelength));
2683
2684                                 /* we put unresolved or non-immediate superindices onto dseg
2685                                    and do things slightly different */
2686                                 if ((super == NULL) || !IS_IMM(superindex)) {
2687                                         /* disp was computed before we added the patcher */
2688                                         M_DSEG_LOAD(REG_ITMP2, disp);
2689                                         M_CMP(REG_ITMP3, REG_ITMP2);
2690
2691                                         if (d == REG_ITMP2) {
2692                                                 M_EORLE(d, d, d);
2693                                                 M_BLE(4);
2694                                         } else {
2695                                                 M_BLE(3);
2696                                         }
2697
2698                                         /* this assumes something */
2699                                         assert(OFFSET(vftbl_t, interfacetable[0]) == 0);
2700
2701                                         /* this does: REG_ITMP3 - superindex * sizeof(methodptr*) */
2702                                         assert(sizeof(methodptr*) == 4);
2703                                         M_SUB(REG_ITMP1, REG_ITMP1, REG_LSL(REG_ITMP2, 2));
2704
2705                                         if (d == REG_ITMP2) {
2706                                                 M_EOR(d, d, d);
2707                                         }
2708
2709                                         s2 = 0;
2710
2711                                 } else {
2712                                         assert(IS_IMM(superindex));
2713                                         M_CMP_IMM(REG_ITMP3, superindex);
2714
2715                                         M_BLE(2);
2716
2717                                         s2 = OFFSET(vftbl_t, interfacetable[0]) -
2718                                                 superindex * sizeof(methodptr*);
2719
2720                                 }
2721
2722                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP1, s2);
2723                                 M_TST(REG_ITMP3, REG_ITMP3);
2724                                 M_MOVNE_IMM(1, d);
2725
2726                                 if (super == NULL)
2727                                         emit_label_br(cd, BRANCH_LABEL_4);
2728                                 else
2729                                         emit_label(cd, BRANCH_LABEL_3);
2730                         }
2731
2732                         /* class checkcast code */
2733
2734                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2735                                 if (super == NULL) {
2736                                         emit_label(cd, BRANCH_LABEL_2);
2737
2738                                         disp = dseg_add_unique_address(cd, NULL);
2739
2740                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_vftbl,
2741                                                             iptr->sx.s23.s3.c.ref, disp);
2742
2743                                         if (opt_showdisassemble)
2744                                                 M_NOP;
2745                                 }
2746                                 else {
2747                                         disp = dseg_add_address(cd, super->vftbl);
2748
2749                                         M_EOR(d, d, d);
2750                                         M_TST(s1, s1);
2751                                         emit_label_beq(cd, BRANCH_LABEL_5);
2752                                 }
2753
2754                                 M_LDR_INTERN(REG_ITMP1, s1, OFFSET(java_object_t, vftbl));
2755                                 M_DSEG_LOAD(REG_ITMP2, disp);
2756
2757                                 CODEGEN_CRITICAL_SECTION_START;
2758
2759                                 M_LDR_INTERN(REG_ITMP1, REG_ITMP1, OFFSET(vftbl_t, baseval));
2760                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2761                                 M_LDR_INTERN(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2762
2763                                 CODEGEN_CRITICAL_SECTION_END;
2764
2765                                 M_SUB(REG_ITMP1, REG_ITMP1, REG_ITMP3);
2766                                 M_CMP(REG_ITMP1, REG_ITMP2);
2767                                 /* If d == REG_ITMP2, then it's destroyed */
2768                                 if (d == REG_ITMP2)
2769                                         M_EOR(d, d, d);
2770                                 M_MOVLS_IMM(1, d);
2771
2772                                 if (super != NULL)
2773                                         emit_label(cd, BRANCH_LABEL_5);
2774                         }
2775
2776                         if (super == NULL) {
2777                                 emit_label(cd, BRANCH_LABEL_1);
2778                                 emit_label(cd, BRANCH_LABEL_4);
2779                         }
2780
2781                         }
2782
2783                         emit_store_dst(jd, iptr, d);
2784                         break;
2785
2786                 case ICMD_MULTIANEWARRAY:/* ..., cnt1, [cnt2, ...] ==> ..., arrayref  */
2787
2788                         /* copy sizes to stack if necessary  */
2789
2790                         MCODECHECK((iptr->s1.argcount << 1) + 64);
2791
2792                         for (s1 = iptr->s1.argcount; --s1 >= 0; ) {
2793
2794                                 var = VAR(iptr->sx.s23.s2.args[s1]);
2795
2796                                 /* copy SAVEDVAR sizes to stack */
2797
2798                                 if (!(var->flags & PREALLOC)) {
2799                                         s2 = emit_load(jd, iptr, var, REG_ITMP1);
2800                                         M_STR(s2, REG_SP, s1 * 4);
2801                                 }
2802                         }
2803
2804                         /* a0 = dimension count */
2805
2806                         assert(IS_IMM(iptr->s1.argcount));
2807                         M_MOV_IMM(REG_A0, iptr->s1.argcount);
2808
2809                         /* is patcher function set? */
2810
2811                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2812                                 disp = dseg_add_unique_address(cd, NULL);
2813
2814                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
2815                                                                         iptr->sx.s23.s3.c.ref, disp);
2816
2817                                 if (opt_showdisassemble)
2818                                         M_NOP;
2819                         }
2820                         else
2821                                 disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2822
2823                         /* a1 = arraydescriptor */
2824
2825                         M_DSEG_LOAD(REG_A1, disp);
2826
2827                         /* a2 = pointer to dimensions = stack pointer */
2828
2829                         M_INTMOVE(REG_SP, REG_A2);
2830
2831                         /* call builtin_multianewarray here */
2832
2833                         disp = dseg_add_functionptr(cd, BUILTIN_multianewarray);
2834                         M_DSEG_BRANCH(disp);
2835
2836                         /* recompute pv */
2837
2838                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2839                         M_RECOMPUTE_PV(s1);
2840
2841                         /* check for exception before result assignment */
2842
2843                         emit_exception_check(cd, iptr);
2844
2845                         /* get arrayref */
2846
2847                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2848                         M_INTMOVE(REG_RESULT, d);
2849                         emit_store_dst(jd, iptr, d);
2850                         break;
2851
2852                 case ICMD_CHECKNULL:  /* ..., objectref  ==> ..., objectref           */
2853
2854                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2855                         emit_nullpointer_check(cd, iptr, s1);
2856                         break;
2857
2858                 default:
2859                         exceptions_throw_internalerror("Unknown ICMD %d during code generation",
2860                                                                                    iptr->opc);
2861                         return false;
2862                 } /* the big switch */
2863
2864                 } /* for all instructions */
2865
2866         } /* for all basic blocks */
2867
2868         dseg_createlinenumbertable(cd);
2869
2870
2871         /* generate traps */
2872
2873         emit_patcher_traps(jd);
2874
2875         /* everything's ok */
2876
2877         return true;
2878 }
2879
2880
2881 /* codegen_emit_stub_compiler **************************************************
2882
2883    Emits a stub routine which calls the compiler.
2884
2885 *******************************************************************************/
2886
2887 void codegen_emit_stub_compiler(jitdata *jd)
2888 {
2889         methodinfo  *m;
2890         codegendata *cd;
2891
2892         /* get required compiler data */
2893
2894         m  = jd->m;
2895         cd = jd->cd;
2896
2897         /* code for the stub */
2898
2899         M_LDR_INTERN(REG_ITMP1, REG_PC, -(2 * 4 + 2 * SIZEOF_VOID_P));
2900         M_LDR_INTERN(REG_PC, REG_PC, -(3 * 4 + 3 * SIZEOF_VOID_P));
2901 }
2902
2903
2904 /* codegen_emit_stub_native ****************************************************
2905
2906    Emits a stub routine which calls a native method.
2907
2908 *******************************************************************************/
2909
2910 void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f)
2911 {
2912         methodinfo  *m;
2913         codeinfo    *code;
2914         codegendata *cd;
2915         s4           nativeparams;
2916         methoddesc  *md;
2917         s4           i, j;
2918         s4           t;
2919         s4           disp, funcdisp, s1, s2;
2920
2921         /* get required compiler data */
2922
2923         m    = jd->m;
2924         code = jd->code;
2925         cd   = jd->cd;
2926
2927         /* initialize variables */
2928
2929         md = m->parseddesc;
2930         nativeparams = (m->flags & ACC_STATIC) ? 2 : 1;
2931
2932         /* calculate stackframe size */
2933
2934         cd->stackframesize =
2935                 4 +                                                /* return address  */
2936                 sizeof(stackframeinfo) +                           /* stackframeinfo  */
2937                 sizeof(localref_table) +                           /* localref_table  */
2938                 nmd->memuse * 4;                                   /* stack arguments */
2939
2940         /* align stack to 8-byte */
2941
2942         cd->stackframesize = (cd->stackframesize + 4) & ~4;
2943
2944         /* create method header */
2945
2946         (void) dseg_add_unique_address(cd, code);              /* CodeinfoPointer */
2947         (void) dseg_add_unique_s4(cd, cd->stackframesize);     /* FrameSize       */
2948         (void) dseg_add_unique_s4(cd, 0);                      /* IsSync          */
2949         (void) dseg_add_unique_s4(cd, 0);                      /* IsLeaf          */
2950         (void) dseg_add_unique_s4(cd, 0);                      /* IntSave         */
2951         (void) dseg_add_unique_s4(cd, 0);                      /* FltSave         */
2952         (void) dseg_addlinenumbertablesize(cd);
2953         (void) dseg_add_unique_s4(cd, 0);                      /* ExTableSize     */
2954
2955         /* generate stub code */
2956
2957         M_STMFD(1<<REG_LR, REG_SP);
2958         M_SUB_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - 1);
2959
2960 #if !defined(NDEBUG)
2961         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
2962                 emit_verbosecall_enter(jd);
2963 #endif
2964
2965         /* get function address (this must happen before the stackframeinfo) */
2966
2967         funcdisp = dseg_add_functionptr(cd, f);
2968
2969 #if !defined(WITH_STATIC_CLASSPATH)
2970         if (f == NULL) {
2971                 patcher_add_patch_ref(jd, PATCHER_resolve_native_function, m, funcdisp);
2972
2973                 if (opt_showdisassemble)
2974                         M_NOP;
2975         }
2976 #endif
2977
2978         /* Save integer and float argument registers (these are 4
2979            registers, stack is 8-byte aligned). */
2980
2981         M_STMFD(BITMASK_ARGS, REG_SP);
2982         /* TODO: floating point */
2983
2984         /* create native stackframe info */
2985
2986         assert(IS_IMM(4*4 + cd->stackframesize));
2987         M_ADD_IMM(REG_A0, REG_SP, 4*4 + cd->stackframesize - SIZEOF_VOID_P);
2988         M_MOV(REG_A1, REG_PV);
2989         M_ADD_IMM(REG_A2, REG_SP, 4*4 + cd->stackframesize);
2990         M_LDR_INTERN(REG_A3, REG_SP, 4*4 + cd->stackframesize - SIZEOF_VOID_P);
2991         disp = dseg_add_functionptr(cd, codegen_start_native_call);
2992         M_DSEG_BRANCH(disp);
2993
2994         /* recompute pv */
2995
2996         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2997         M_RECOMPUTE_PV(s1);
2998
2999         /* Restore integer and float argument registers (these are 4
3000            registers, stack is 8-byte aligned). */
3001
3002         M_LDMFD(BITMASK_ARGS, REG_SP);
3003         /* TODO: floating point */
3004
3005         /* copy or spill arguments to new locations */
3006         /* ATTENTION: the ARM has only integer argument registers! */
3007
3008         for (i = md->paramcount - 1, j = i + nativeparams; i >= 0; i--, j--) {
3009                 t = md->paramtypes[i].type;
3010
3011                 if (!md->params[i].inmemory) {
3012                         s1 = md->params[i].regoff;
3013                         s2 = nmd->params[j].regoff;
3014
3015                         if (!nmd->params[j].inmemory) {
3016 #if !defined(__ARM_EABI__)
3017                                 SPLIT_OPEN(t, s2, REG_ITMP1);
3018 #endif
3019
3020                                 if (IS_2_WORD_TYPE(t))
3021                                         M_LNGMOVE(s1, s2);
3022                                 else
3023                                         M_INTMOVE(s1, s2);
3024
3025 #if !defined(__ARM_EABI__)
3026                                 SPLIT_STORE_AND_CLOSE(t, s2, 0);
3027 #endif
3028                         }
3029                         else {
3030                                 if (IS_2_WORD_TYPE(t))
3031                                         M_LST(s1, REG_SP, s2);
3032                                 else
3033                                         M_IST(s1, REG_SP, s2);
3034                         }
3035                 }
3036                 else {
3037                         s1 = md->params[i].regoff + cd->stackframesize;
3038                         s2 = nmd->params[j].regoff;
3039
3040                         if (IS_2_WORD_TYPE(t)) {
3041                                 M_LLD(REG_ITMP12_PACKED, REG_SP, s1);
3042                                 M_LST(REG_ITMP12_PACKED, REG_SP, s2);
3043                         }
3044                         else {
3045                                 M_ILD(REG_ITMP1, REG_SP, s1);
3046                                 M_IST(REG_ITMP1, REG_SP, s2);
3047                         }
3048                 }
3049         }
3050
3051         /* put class into second argument register */
3052
3053         if (m->flags & ACC_STATIC) {
3054                 disp = dseg_add_address(cd, m->class);
3055                 M_DSEG_LOAD(REG_A1, disp);
3056         }
3057
3058         /* put env into first argument register */
3059
3060         disp = dseg_add_address(cd, _Jv_env);
3061         M_DSEG_LOAD(REG_A0, disp);
3062
3063         /* do the native function call */
3064
3065         M_DSEG_BRANCH(funcdisp);
3066
3067         /* recompute pv */
3068         /* TODO: this is only needed because of the tracer ... do we
3069            really need it? */
3070
3071         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3072         M_RECOMPUTE_PV(s1);
3073
3074 #if !defined(__SOFTFP__)
3075         /* TODO: this is only a hack, since we use R0/R1 for float return! */
3076         /* this depends on gcc; it is independent from our ENABLE_SOFTFLOAT define */
3077         if (md->returntype.type != TYPE_VOID && IS_FLT_DBL_TYPE(md->returntype.type)) {
3078 #if 0 && !defined(NDEBUG)
3079                 dolog("NATIVESTUB that returns float or double (%s.%s)", m->class->name->text, m->name->text);
3080 #endif
3081                 /* we cannot use this macro, since it is not defined in ENABLE_SOFTFLOAT */
3082                 /* M_CAST_FLT_TO_INT_TYPED(md->returntype.type, REG_FRESULT, REG_RESULT_TYPED(md->returntype.type)); */
3083                 if (IS_2_WORD_TYPE(md->returntype.type)) {
3084                         DCD(0xed2d8102); /* stfd    f0, [sp, #-8]! */
3085                         M_LDRD_UPDATE(REG_RESULT_PACKED, REG_SP, 8);
3086                 } else {
3087                         DCD(0xed2d0101); /* stfs    f0, [sp, #-4]!*/
3088                         M_LDR_UPDATE(REG_RESULT, REG_SP, 4);
3089                 }
3090         }
3091 #endif
3092
3093 #if !defined(NDEBUG)
3094         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
3095                 emit_verbosecall_exit(jd);
3096 #endif
3097
3098         /* remove native stackframe info */
3099         /* TODO: improve this store/load */
3100
3101         M_STMFD(BITMASK_RESULT, REG_SP);
3102
3103         M_ADD_IMM(REG_A0, REG_SP, 2*4 + cd->stackframesize - SIZEOF_VOID_P);
3104         disp = dseg_add_functionptr(cd, codegen_finish_native_call);
3105         M_DSEG_BRANCH(disp);
3106         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3107         M_RECOMPUTE_PV(s1);
3108
3109         M_MOV(REG_ITMP1_XPTR, REG_RESULT);
3110         M_LDMFD(BITMASK_RESULT, REG_SP);
3111
3112         /* finish stub code, but do not yet return to caller */
3113
3114         M_ADD_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - 1);
3115         M_LDMFD(1<<REG_LR, REG_SP);
3116
3117         /* check for exception */
3118
3119         M_TST(REG_ITMP1_XPTR, REG_ITMP1_XPTR);
3120         M_MOVEQ(REG_LR, REG_PC);            /* if no exception, return to caller  */
3121
3122         /* handle exception here */
3123
3124         M_SUB_IMM(REG_ITMP2_XPC, REG_LR, 4);/* move fault address into xpc        */
3125
3126         disp = dseg_add_functionptr(cd, asm_handle_nat_exception);
3127         M_DSEG_LOAD(REG_ITMP3, disp);       /* load asm exception handler address */
3128         M_MOV(REG_PC, REG_ITMP3);           /* jump to asm exception handler      */
3129
3130         /* generate patcher stubs */
3131
3132         emit_patcher_traps(jd);
3133 }
3134
3135
3136 /* asm_debug *******************************************************************
3137
3138    Lazy debugger!
3139
3140 *******************************************************************************/
3141
3142 void asm_debug(int a1, int a2, int a3, int a4)
3143 {
3144         printf("===> i am going to exit after this debugging message!\n");
3145         printf("got asm_debug(%p, %p, %p, %p)\n",(void*)a1,(void*)a2,(void*)a3,(void*)a4);
3146         vm_abort("leave you now");
3147 }
3148
3149
3150 /*
3151  * These are local overrides for various environment variables in Emacs.
3152  * Please do not remove this and leave it at the end of the file, where
3153  * Emacs will automagically detect them.
3154  * ---------------------------------------------------------------------
3155  * Local variables:
3156  * mode: c
3157  * indent-tabs-mode: t
3158  * c-basic-offset: 4
3159  * tab-width: 4
3160  * End:
3161  * vim:noexpandtab:sw=4:ts=4:
3162  */