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    $Id: codegen.c 8318 2007-08-16 10:05:34Z michi $
  26
  27 */
  28
  29
  30 #include "config.h"
  31
  32 #include <assert.h>
  33 #include <stdio.h>
  34
  35 #include "vm/types.h"
  36
  37 #include "md-abi.h"
  38
  39 #include "vm/jit/arm/arch.h"
  40 #include "vm/jit/arm/codegen.h"
  41
  42 #include "mm/memory.h"
  43
  44 #include "native/localref.h"
  45 #include "native/native.h"
  46
  47 #include "threads/lock-common.h"
  48
  49 #include "vm/builtin.h"
  50 #include "vm/exceptions.h"
  51 #include "vm/global.h"
  52 #include "vm/vm.h"
  53
  54 #include "vm/jit/asmpart.h"
  55 #include "vm/jit/codegen-common.h"
  56 #include "vm/jit/dseg.h"
  57 #include "vm/jit/emit-common.h"
  58 #include "vm/jit/jit.h"
  59 #include "vm/jit/md.h"
  60 #include "vm/jit/methodheader.h"
  61 #include "vm/jit/parse.h"
  62 #include "vm/jit/patcher-common.h"
  63 #include "vm/jit/reg.h"
  64
  65 #if defined(ENABLE_LSRA)
  66 #include "vm/jit/allocator/lsra.h"
  67 #endif
  68
  69 #include "vmcore/loader.h"
  70 #include "vmcore/options.h"
  71
  72
  73 /* codegen_emit ****************************************************************
  74
  75    Generates machine code.
  76
  77 *******************************************************************************/
  78
  79 bool codegen_emit(jitdata *jd)
  80 {
  81         methodinfo         *m;
  82         codeinfo           *code;
  83         codegendata        *cd;
  84         registerdata       *rd;
  85         s4              i, t, len;
  86         s4              s1, s2, s3, d;
  87         s4              disp;
  88         varinfo        *var;
  89         basicblock     *bptr;
  90         instruction    *iptr;
  91         exception_entry *ex;
  92
  93         s4              spilledregs_num;
  94         s4              savedregs_num;
  95         u2              savedregs_bitmask;
  96         u2              currentline;
  97
  98         methodinfo         *lm;             /* local methodinfo for ICMD_INVOKE* */
  99         unresolved_method  *um;
 100         builtintable_entry *bte;
 101         methoddesc         *md;
 102         fieldinfo          *fi;
 103         unresolved_field   *uf;
 104         int                 fieldtype;
 105         int                 varindex;
 106
 107         /* get required compiler data */
 108
 109         m    = jd->m;
 110         code = jd->code;
 111         cd   = jd->cd;
 112         rd   = jd->rd;
 113
 114         /* prevent compiler warnings */
 115
 116         lm  = NULL;
 117         um  = NULL;
 118         bte = NULL;
 119
 120         fieldtype = -1;
 121
 122         /* space to save used callee saved registers */
 123
 124         savedregs_num = (jd->isleafmethod) ? 0 : 1;       /* space to save the LR */
 125         savedregs_num += (INT_SAV_CNT - rd->savintreguse);
 126         /*savedregs_num += (FLT_SAV_CNT - rd->savfltreguse);*/
 127         assert((FLT_SAV_CNT - rd->savfltreguse) == 0);
 128
 129         spilledregs_num = rd->memuse;
 130
 131 #if defined(ENABLE_THREADS)        /* space to save argument of monitor_enter */
 132         if (checksync && (m->flags & ACC_SYNCHRONIZED))
 133                 spilledregs_num++;
 134 #endif
 135
 136         cd->stackframesize = spilledregs_num * 8 + savedregs_num * 4;
 137
 138         /* XXX QUICK FIX: We shouldn't align the stack in Java code, but
 139            only in native stubs. */
 140         /* align stack to 8-byte */
 141
 142         cd->stackframesize = (cd->stackframesize + 4) & ~4;
 143
 144         /* SECTION: Method Header */
 145         /* create method header */
 146
 147         (void) dseg_add_unique_address(cd, code);              /* CodeinfoPointer */
 148         (void) dseg_add_unique_s4(cd, cd->stackframesize);     /* FrameSize       */
 149
 150 #if defined(ENABLE_THREADS)
 151         /* IsSync contains the offset relative to the stack pointer for the
 152            argument of monitor_exit used in the exception handler. Since the
 153            offset could be zero and give a wrong meaning of the flag it is
 154            offset by one.
 155         */
 156
 157         if (checksync && (m->flags & ACC_SYNCHRONIZED))
 158                 (void) dseg_add_unique_s4(cd, rd->memuse * 8 + 4);/* IsSync         */
 159         else
 160 #endif
 161                 (void) dseg_add_unique_s4(cd, 0);                  /* IsSync          */
 162
 163         (void) dseg_add_unique_s4(cd, jd->isleafmethod);       /* IsLeaf          */
 164         (void) dseg_add_unique_s4(cd, INT_SAV_CNT - rd->savintreguse); /* IntSave */
 165         (void) dseg_add_unique_s4(cd, FLT_SAV_CNT - rd->savfltreguse); /* FltSave */
 166         (void) dseg_addlinenumbertablesize(cd);
 167         (void) dseg_add_unique_s4(cd, jd->exceptiontablelength); /* ExTableSize   */
 168
 169         /* create exception table */
 170
 171         for (ex = jd->exceptiontable; ex != NULL; ex = ex->down) {
 172                 dseg_add_target(cd, ex->start);
 173                 dseg_add_target(cd, ex->end);
 174                 dseg_add_target(cd, ex->handler);
 175                 (void) dseg_add_unique_address(cd, ex->catchtype.any);
 176         }
 177
 178         /* save return address and used callee saved registers */
 179
 180         savedregs_bitmask = 0;
 181
 182         if (!jd->isleafmethod)
 183                 savedregs_bitmask = (1<<REG_LR);
 184
 185         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--)
 186                 savedregs_bitmask |= (1<<(rd->savintregs[i]));
 187
 188 #if !defined(NDEBUG)
 189         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
 190                 log_text("!!! CODEGEN: floating-point callee saved registers are not saved to stack (SEVERE! STACK IS MESSED UP!)");
 191                 /* TODO: floating-point */
 192         }
 193 #endif
 194
 195         if (savedregs_bitmask)
 196                 M_STMFD(savedregs_bitmask, REG_SP);
 197
 198         /* create additional stack frame for spilled variables (if necessary) */
 199
 200         if ((cd->stackframesize / 4 - savedregs_num) > 0)
 201                 M_SUB_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - savedregs_num);
 202
 203         /* take arguments out of register or stack frame */
 204
 205         md = m->parseddesc;
 206         for (i = 0, len = 0; i < md->paramcount; i++) {
 207                 s1 = md->params[i].regoff;
 208                 t = md->paramtypes[i].type;
 209
 210                 varindex = jd->local_map[len * 5 + t];
 211
 212                 len += (IS_2_WORD_TYPE(t)) ? 2 : 1;          /* 2 word type arguments */
 213
 214                 if (varindex == UNUSED)
 215                         continue;
 216
 217                 var = VAR(varindex);
 218
 219                 /* ATTENTION: we use interger registers for all arguments (even float) */
 220 #if !defined(ENABLE_SOFTFLOAT)
 221                 if (IS_INT_LNG_TYPE(t)) {
 222 #endif
 223                         if (!md->params[i].inmemory) {
 224                                 if (!(var->flags & INMEMORY)) {
 225                                         if (IS_2_WORD_TYPE(t))
 226                                                 M_LNGMOVE(s1, var->vv.regoff);
 227                                         else
 228                                                 M_INTMOVE(s1, var->vv.regoff);
 229                                 }
 230                                 else {
 231                                         if (IS_2_WORD_TYPE(t))
 232                                                 M_LST(s1, REG_SP, var->vv.regoff);
 233                                         else
 234                                                 M_IST(s1, REG_SP, var->vv.regoff);
 235                                 }
 236                         }
 237                         else {                                   /* stack arguments       */
 238                                 if (!(var->flags & INMEMORY)) {      /* stack arg -> register */
 239                                         if (IS_2_WORD_TYPE(t))
 240                                                 M_LLD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 241                                         else
 242                                                 M_ILD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 243                                 }
 244                                 else {                               /* stack arg -> spilled  */
 245                                         /* Reuse Memory Position on Caller Stack */
 246                                         var->vv.regoff = cd->stackframesize + s1;
 247                                 }
 248                         }
 249 #if !defined(ENABLE_SOFTFLOAT)
 250                 }
 251                 else {
 252                         if (!md->params[i].inmemory) {
 253                                 if (!(var->flags & INMEMORY)) {
 254                                         M_CAST_INT_TO_FLT_TYPED(t, s1, var->vv.regoff);
 255                                 }
 256                                 else {
 257                                         if (IS_2_WORD_TYPE(t))
 258                                                 M_LST(s1, REG_SP, var->vv.regoff);
 259                                         else
 260                                                 M_IST(s1, REG_SP, var->vv.regoff);
 261                                 }
 262                         }
 263                         else {
 264                                 if (!(var->flags & INMEMORY)) {
 265                                         if (IS_2_WORD_TYPE(t))
 266                                                 M_DLD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 267                                         else
 268                                                 M_FLD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 269                                 }
 270                                 else {
 271                                         /* Reuse Memory Position on Caller Stack */
 272                                         var->vv.regoff = cd->stackframesize + s1;
 273                                 }
 274                         }
 275                 }
 276 #endif /* !defined(ENABLE_SOFTFLOAT) */
 277         }
 278
 279 #if defined(ENABLE_THREADS)
 280         /* call monitorenter function */
 281
 282         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
 283                 /* stack offset for monitor argument */
 284
 285                 s1 = rd->memuse * 8;
 286
 287 # if !defined(NDEBUG)
 288                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 289                         M_STMFD(BITMASK_ARGS, REG_SP);
 290                         s1 += 4 * 4;
 291                 }
 292 # endif
 293
 294                 /* get the correct lock object */
 295
 296                 if (m->flags & ACC_STATIC) {
 297                         disp = dseg_add_address(cd, &m->class->object.header);
 298                         M_DSEG_LOAD(REG_A0, disp);
 299                 }
 300                 else {
 301                         emit_nullpointer_check_force(cd, iptr, REG_A0);
 302                 }
 303
 304                 M_STR(REG_A0, REG_SP, s1);
 305                 disp = dseg_add_functionptr(cd, LOCK_monitor_enter);
 306                 M_DSEG_BRANCH(disp);
 307                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
 308                 M_RECOMPUTE_PV(s1);
 309
 310 # if !defined(NDEBUG)
 311                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
 312                         M_LDMFD(BITMASK_ARGS, REG_SP);
 313 # endif
 314         }
 315 #endif
 316
 317 #if !defined(NDEBUG)
 318         /* call trace function */
 319
 320         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
 321                 emit_verbosecall_enter(jd);
 322 #endif
 323
 324         /* end of header generation */
 325
 326         /* create replacement points */
 327         REPLACEMENT_POINTS_INIT(cd, jd);
 328
 329         /* SECTION: ICMD Code Generation */
 330         /* for all basic blocks */
 331
 332         for (bptr = jd->basicblocks; bptr != NULL; bptr = bptr->next) {
 333
 334                 bptr->mpc = (s4) (cd->mcodeptr - cd->mcodebase);
 335
 336                 /* is this basic block reached? */
 337
 338                 if (bptr->flags < BBREACHED)
 339                         continue;
 340
 341                 /* branch resolving */
 342
 343                 codegen_resolve_branchrefs(cd, bptr);
 344
 345                 /* handle replacement points */
 346                 REPLACEMENT_POINT_BLOCK_START(cd, bptr);
 347
 348                 /* copy interface registers to their destination */
 349
 350                 len = bptr->indepth;
 351
 352                 MCODECHECK(64+len);
 353
 354 #if defined(ENABLE_LSRA)
 355                 if (opt_lsra) {
 356                 while (len) {
 357                         len--;
 358                         var = VAR(bptr->invars[len]);
 359                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 360                                 if (!(var->flags & INMEMORY))
 361                                         d= var->vv.regoff;
 362                                 else
 363                                         d=REG_ITMP1;
 364                                 M_INTMOVE(REG_ITMP1, d);
 365                                 emit_store(jd, NULL, var, d);
 366                         }
 367                 }
 368                 } else {
 369 #endif
 370                 while (len) {
 371                         len--;
 372                         var = VAR(bptr->invars[len]);
 373
 374                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 375                                 d = codegen_reg_of_var(0, var, REG_ITMP1);
 376                                 M_INTMOVE(REG_ITMP1, d);
 377                                 emit_store(jd, NULL, var, d);
 378                         }
 379                         else {
 380                                 assert((var->flags & INOUT));
 381                         }
 382                 }
 383 #if defined(ENABLE_LSRA)
 384                 }
 385 #endif
 386
 387                 /* for all instructions */
 388                 len = bptr->icount;
 389                 currentline = 0;
 390                 for (iptr = bptr->iinstr; len > 0; len--, iptr++) {
 391
 392                         /* add line number */
 393                         if (iptr->line != currentline) {
 394                                 dseg_addlinenumber(cd, iptr->line);
 395                                 currentline = iptr->line;
 396                         }
 397
 398                         MCODECHECK(64);   /* an instruction usually needs < 64 words      */
 399
 400                         /* the big switch */
 401                         switch (iptr->opc) {
 402                 case ICMD_NOP:        /* ... ==> ...                                  */
 403                         break;
 404
 405         /* constant operations ************************************************/
 406
 407                 case ICMD_ICONST:     /* ...  ==> ..., constant                       */
 408
 409                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 410                         ICONST(d, iptr->sx.val.i);
 411                         emit_store_dst(jd, iptr, d);
 412                         break;
 413
 414                 case ICMD_ACONST:     /* ... ==> ..., constant                        */
 415
 416                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 417                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
 418                                 disp = dseg_add_unique_address(cd, NULL);
 419
 420                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
 421                                                     iptr->sx.val.c.ref, disp);
 422
 423                                 if (opt_showdisassemble)
 424                                         M_NOP;
 425
 426                                 M_DSEG_LOAD(d, disp);
 427                         }
 428                         else {
 429                                 ICONST(d, (u4) iptr->sx.val.anyptr);
 430                         }
 431                         emit_store_dst(jd, iptr, d);
 432                         break;
 433
 434                 case ICMD_LCONST:     /* ...  ==> ..., constant                       */
 435
 436                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 437                         LCONST(d, iptr->sx.val.l);
 438                         emit_store_dst(jd, iptr, d);
 439                         break;
 440
 441                 case ICMD_FCONST:     /* ...  ==> ..., constant                       */
 442
 443 #if defined(ENABLE_SOFTFLOAT)
 444                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 445                         ICONST(d, iptr->sx.val.i);
 446                         emit_store_dst(jd, iptr, d);
 447 #else
 448                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 449                         FCONST(d, iptr->sx.val.f);
 450                         emit_store_dst(jd, iptr, d);
 451 #endif
 452                         break;
 453
 454                 case ICMD_DCONST:     /* ...  ==> ..., constant                       */
 455
 456 #if defined(ENABLE_SOFTFLOAT)
 457                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 458                         LCONST(d, iptr->sx.val.l);
 459                         emit_store_dst(jd, iptr, d);
 460 #else
 461                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 462                         DCONST(d, iptr->sx.val.d);
 463                         emit_store_dst(jd, iptr, d);
 464 #endif
 465                         break;
 466
 467
 468                 /* load/store/copy/move operations ************************************/
 469
 470                 case ICMD_ILOAD:      /* ...  ==> ..., content of local variable      */
 471                 case ICMD_ALOAD:      /* op1 = local variable                         */
 472                 case ICMD_FLOAD:
 473                 case ICMD_LLOAD:
 474                 case ICMD_DLOAD:
 475                 case ICMD_ISTORE:     /* ..., value  ==> ...                          */
 476                 case ICMD_FSTORE:
 477                 case ICMD_LSTORE:
 478                 case ICMD_DSTORE:
 479                 case ICMD_COPY:
 480                 case ICMD_MOVE:
 481
 482                         emit_copy(jd, iptr);
 483                         break;
 484
 485                 case ICMD_ASTORE:
 486                         if (!(iptr->flags.bits & INS_FLAG_RETADDR))
 487                                 emit_copy(jd, iptr);
 488                         break;
 489
 490                 /* pop operations *****************************************************/
 491
 492                 /* attention: double and longs are only one entry in CACAO ICMDs      */
 493
 494                 case ICMD_POP:        /* ..., value  ==> ...                          */
 495                 case ICMD_POP2:       /* ..., value, value  ==> ...                   */
 496
 497                         break;
 498
 499
 500                 /* integer operations *************************************************/
 501
 502                 case ICMD_INT2BYTE:   /* ..., value  ==> ..., value                   */
 503
 504                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 505                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 506                         M_MOV(d, REG_LSL(s1, 24));
 507                         M_MOV(d, REG_ASR(d, 24));
 508                         emit_store_dst(jd, iptr, d);
 509                         break;
 510
 511                 case ICMD_INT2CHAR:   /* ..., value  ==> ..., value                   */
 512
 513                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 514                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 515                         M_MOV(d, REG_LSL(s1, 16));
 516                         M_MOV(d, REG_LSR(d, 16)); /* ATTENTION: char is unsigned */
 517                         emit_store_dst(jd, iptr, d);
 518                         break;
 519
 520                 case ICMD_INT2SHORT:  /* ..., value  ==> ..., value                   */
 521
 522                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 523                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 524                         M_MOV(d, REG_LSL(s1, 16));
 525                         M_MOV(d, REG_ASR(d, 16));
 526                         emit_store_dst(jd, iptr, d);
 527                         break;
 528
 529                 case ICMD_I2L:        /* ..., value  ==> ..., value                   */
 530
 531                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 532                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 533                         M_INTMOVE(s1, GET_LOW_REG(d));
 534                         M_MOV(GET_HIGH_REG(d), REG_ASR(s1, 31));
 535                         emit_store_dst(jd, iptr, d);
 536                         break;
 537
 538                 case ICMD_L2I:        /* ..., value  ==> ..., value                   */
 539
 540                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 541                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 542                         M_INTMOVE(s1, d);
 543                         emit_store_dst(jd, iptr, d);
 544                         break;
 545
 546                 case ICMD_INEG:       /* ..., value  ==> ..., - value                 */
 547
 548                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 549                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 550                         M_RSB_IMM(d, s1, 0);
 551                         emit_store_dst(jd, iptr, d);
 552                         break;
 553
 554                 case ICMD_LNEG:       /* ..., value  ==> ..., - value                 */
 555
 556                         s1 = emit_load_s1(jd, iptr, REG_ITMP12_PACKED);
 557                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 558                         M_RSB_IMMS(GET_LOW_REG(d), GET_LOW_REG(s1), 0);
 559                         M_RSC_IMM(GET_HIGH_REG(d), GET_HIGH_REG(s1), 0);
 560                         emit_store_dst(jd, iptr, d);
 561                         break;
 562
 563                 case ICMD_IADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 564
 565                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 566                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 567                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 568                         M_ADD(d, s1, s2);
 569                         emit_store_dst(jd, iptr, d);
 570                         break;
 571
 572                 case ICMD_LADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 573
 574                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 575                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 576                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 577                         M_ADD_S(GET_LOW_REG(d), s1, s2);
 578                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 579                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 580                         M_ADC(GET_HIGH_REG(d), s1, s2);
 581                         emit_store_dst(jd, iptr, d);
 582                         break;
 583
 584                 case ICMD_IADDCONST:
 585                 case ICMD_IINC:
 586
 587                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 588                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 589
 590                         if (IS_IMM(iptr->sx.val.i)) {
 591                                 M_ADD_IMM(d, s1, iptr->sx.val.i);
 592                         } else if (IS_IMM(-iptr->sx.val.i)) {
 593                                 M_SUB_IMM(d, s1, (-iptr->sx.val.i));
 594                         } else {
 595                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 596                                 M_ADD(d, s1, REG_ITMP3);
 597                         }
 598
 599                         emit_store_dst(jd, iptr, d);
 600                         break;
 601
 602                 case ICMD_LADDCONST:  /* ..., value  ==> ..., value + constant        */
 603                                       /* sx.val.l = constant                          */
 604
 605                         s3 = iptr->sx.val.l & 0xffffffff;
 606                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 607                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 608                         if (IS_IMM(s3))
 609                                 M_ADD_IMMS(GET_LOW_REG(d), s1, s3);
 610                         else {
 611                                 ICONST(REG_ITMP3, s3);
 612                                 M_ADD_S(GET_LOW_REG(d), s1, REG_ITMP3);
 613                         }
 614                         s3 = iptr->sx.val.l >> 32;
 615                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP2);
 616                         if (IS_IMM(s3))
 617                                 M_ADC_IMM(GET_HIGH_REG(d), s1, s3);
 618                         else {
 619                                 ICONST(REG_ITMP3, s3);
 620                                 M_ADC(GET_HIGH_REG(d), s1, REG_ITMP3);
 621                         }
 622                         emit_store_dst(jd, iptr, d);
 623                         break;
 624
 625                 case ICMD_ISUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 626
 627                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 628                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 629                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 630                         M_SUB(d, s1, s2);
 631                         emit_store_dst(jd, iptr, d);
 632                         break;
 633
 634                 case ICMD_LSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 635
 636                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 637                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 638                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 639                         M_SUB_S(GET_LOW_REG(d), s1, s2);
 640                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 641                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 642                         M_SBC(GET_HIGH_REG(d), s1, s2);
 643                         emit_store_dst(jd, iptr, d);
 644                         break;
 645
 646                 case ICMD_ISUBCONST:  /* ..., value  ==> ..., value + constant        */
 647                                       /* sx.val.i = constant                          */
 648
 649                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 650                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 651                         if (IS_IMM(iptr->sx.val.i))
 652                                 M_SUB_IMM(d, s1, iptr->sx.val.i);
 653                         else {
 654                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 655                                 M_SUB(d, s1, REG_ITMP3);
 656                         }
 657                         emit_store_dst(jd, iptr, d);
 658                         break;
 659
 660                 case ICMD_LSUBCONST:  /* ..., value  ==> ..., value - constant        */
 661                                       /* sx.val.l = constant                          */
 662
 663                         s3 = iptr->sx.val.l & 0xffffffff;
 664                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 665                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 666                         if (IS_IMM(s3))
 667                                 M_SUB_IMMS(GET_LOW_REG(d), s1, s3);
 668                         else {
 669                                 ICONST(REG_ITMP3, s3);
 670                                 M_SUB_S(GET_LOW_REG(d), s1, REG_ITMP3);
 671                         }
 672                         s3 = iptr->sx.val.l >> 32;
 673                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP2);
 674                         if (IS_IMM(s3))
 675                                 M_SBC_IMM(GET_HIGH_REG(d), s1, s3);
 676                         else {
 677                                 ICONST(REG_ITMP3, s3);
 678                                 M_SBC(GET_HIGH_REG(d), s1, REG_ITMP3);
 679                         }
 680                         emit_store_dst(jd, iptr, d);
 681                         break;
 682
 683                 case ICMD_IMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 684
 685                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 686                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 687                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 688                         M_MUL(d, s1, s2);
 689                         emit_store_dst(jd, iptr, d);
 690                         break;
 691
 692                 case ICMD_IDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 693                 case ICMD_IREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 694
 695                         s1 = emit_load_s1(jd, iptr, REG_A0);
 696                         s2 = emit_load_s2(jd, iptr, REG_A1);
 697                         emit_arithmetic_check(cd, iptr, s2);
 698
 699                         /* move arguments into argument registers */
 700                         M_INTMOVE(s1, REG_A0);
 701                         M_INTMOVE(s2, REG_A1);
 702
 703                         /* call builtin function */
 704                         bte = iptr->sx.s23.s3.bte;
 705                         disp = dseg_add_functionptr(cd, bte->fp);
 706                         M_DSEG_BRANCH(disp);
 707
 708                         /* recompute pv */
 709                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
 710                         M_RECOMPUTE_PV(s1);
 711
 712                         /* move result into destination register */
 713                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
 714                         M_INTMOVE(REG_RESULT, d);
 715                         emit_store_dst(jd, iptr, d);
 716                         break;
 717
 718                 case ICMD_LDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 719                 case ICMD_LREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 720
 721                         /* move arguments into argument registers */
 722
 723                         s1 = emit_load_s1(jd, iptr, REG_A0_A1_PACKED);
 724                         s2 = emit_load_s2(jd, iptr, REG_A2_A3_PACKED);
 725                         /* XXX TODO: only do this if arithmetic check is really done! */
 726                         M_ORR(GET_HIGH_REG(s2), GET_LOW_REG(s2), REG_ITMP3);
 727                         emit_arithmetic_check(cd, iptr, REG_ITMP3);
 728
 729                         M_LNGMOVE(s1, REG_A0_A1_PACKED);
 730                         M_LNGMOVE(s2, REG_A2_A3_PACKED);
 731
 732                         /* call builtin function */
 733                         bte = iptr->sx.s23.s3.bte;
 734                         disp = dseg_add_functionptr(cd, bte->fp);
 735                         M_DSEG_BRANCH(disp);
 736
 737                         /* recompute pv */
 738                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
 739                         M_RECOMPUTE_PV(s1);
 740
 741                         /* move result into destination register */
 742                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
 743                         M_LNGMOVE(REG_RESULT_PACKED, d);
 744                         emit_store_dst(jd, iptr, d);
 745                         break;
 746
 747                 case ICMD_IMULPOW2:   /* ..., value  ==> ..., value * (2 ^ constant)  */
 748                                       /* sx.val.i = constant                          */
 749
 750                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 751                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 752                         M_MOV(d, REG_LSL(s1, iptr->sx.val.i));
 753                         emit_store_dst(jd, iptr, d);
 754                         break;
 755
 756                 case ICMD_IDIVPOW2:   /* ..., value  ==> ..., value / (2 ^ constant)  */
 757                                       /* sx.val.i = constant                          */
 758
 759                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 760                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 761                         /* this rounds towards 0 as java likes it */
 762                         M_MOV(REG_ITMP3, REG_ASR(s1, 31));
 763                         M_ADD(REG_ITMP3, s1, REG_LSR(REG_ITMP3, 32 - iptr->sx.val.i));
 764                         M_MOV(d, REG_ASR(REG_ITMP3, iptr->sx.val.i));
 765                         /* this rounds towards nearest, not java style */
 766                         /*M_MOV_S(d, REG_ASR(s1, iptr->sx.val.i));
 767                         M_ADCMI_IMM(d, d, 0);*/
 768                         emit_store_dst(jd, iptr, d);
 769                         break;
 770
 771                 case ICMD_IREMPOW2:   /* ..., value  ==> ..., value % constant        */
 772                                       /* sx.val.i = constant [ (2 ^ x) - 1 ]          */
 773
 774                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 775                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 776                         M_MOV_S(REG_ITMP1, s1);
 777                         M_RSBMI_IMM(REG_ITMP1, REG_ITMP1, 0);
 778                         if (IS_IMM(iptr->sx.val.i))
 779                                 M_AND_IMM(REG_ITMP1, iptr->sx.val.i, d);
 780                         else {
 781                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 782                                 M_AND(REG_ITMP1, REG_ITMP3, d);
 783                         }
 784                         M_RSBMI_IMM(d, d, 0);
 785                         emit_store_dst(jd, iptr, d);
 786                         break;
 787
 788                 case ICMD_ISHL:       /* ..., val1, val2  ==> ..., val1 << val2       */
 789
 790                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 791                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 792                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 793                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 794                         M_MOV(d, REG_LSL_REG(s1, REG_ITMP2));
 795                         emit_store_dst(jd, iptr, d);
 796                         break;
 797
 798                 case ICMD_ISHR:       /* ..., val1, val2  ==> ..., val1 >> val2       */
 799
 800                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 801                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 802                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 803                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 804                         M_MOV(d, REG_ASR_REG(s1, REG_ITMP2));
 805                         emit_store_dst(jd, iptr, d);
 806                         break;
 807
 808                 case ICMD_IUSHR:      /* ..., val1, val2  ==> ..., val1 >>> val2      */
 809
 810                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 811                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 812                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 813                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 814                         M_MOV(d, REG_LSR_REG(s1, REG_ITMP2));
 815                         emit_store_dst(jd, iptr, d);
 816                         break;
 817
 818                 case ICMD_ISHLCONST:  /* ..., value  ==> ..., value << constant       */
 819                                       /* sx.val.i = constant                          */
 820
 821                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 822                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 823                         M_MOV(d, REG_LSL(s1, iptr->sx.val.i & 0x1f));
 824                         emit_store_dst(jd, iptr, d);
 825                         break;
 826
 827                 case ICMD_ISHRCONST:  /* ..., value  ==> ..., value >> constant       */
 828                                       /* sx.val.i = constant                          */
 829
 830                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 831                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 832                         /* we need to check for zero here because arm interprets it as SHR by 32 */
 833                         if ((iptr->sx.val.i & 0x1f) == 0) {
 834                                 M_INTMOVE(s1, d);
 835                         } else {
 836                                 M_MOV(d, REG_ASR(s1, iptr->sx.val.i & 0x1f));
 837                         }
 838                         emit_store_dst(jd, iptr, d);
 839                         break;
 840
 841                 case ICMD_IUSHRCONST: /* ..., value  ==> ..., value >>> constant      */
 842                                       /* sx.val.i = constant                          */
 843
 844                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 845                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 846                         /* we need to check for zero here because arm interprets it as SHR by 32 */
 847                         if ((iptr->sx.val.i & 0x1f) == 0)
 848                                 M_INTMOVE(s1, d);
 849                         else
 850                                 M_MOV(d, REG_LSR(s1, iptr->sx.val.i & 0x1f));
 851                         emit_store_dst(jd, iptr, d);
 852                         break;
 853
 854                 case ICMD_IAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 855
 856                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 857                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 858                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 859                         M_AND(s1, s2, d);
 860                         emit_store_dst(jd, iptr, d);
 861                         break;
 862
 863                 case ICMD_LAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 864
 865                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 866                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 867                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 868                         M_AND(s1, s2, GET_LOW_REG(d));
 869                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 870                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 871                         M_AND(s1, s2, GET_HIGH_REG(d));
 872                         emit_store_dst(jd, iptr, d);
 873                         break;
 874
 875                 case ICMD_IOR:        /* ..., val1, val2  ==> ..., val1 | val2        */
 876
 877                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 878                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 879                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 880                         M_ORR(s1, s2, d);
 881                         emit_store_dst(jd, iptr, d);
 882                         break;
 883
 884                 case ICMD_LOR:       /* ..., val1, val2  ==> ..., val1 | val2        */
 885
 886                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 887                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 888                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 889                         M_ORR(s1, s2, GET_LOW_REG(d));
 890                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 891                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 892                         M_ORR(s1, s2, GET_HIGH_REG(d));
 893                         emit_store_dst(jd, iptr, d);
 894                         break;
 895
 896                 case ICMD_IXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
 897
 898                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 899                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 900                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 901                         M_EOR(s1, s2, d);
 902                         emit_store_dst(jd, iptr, d);
 903                         break;
 904
 905                 case ICMD_LXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
 906
 907                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 908                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 909                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 910                         M_EOR(s1, s2, GET_LOW_REG(d));
 911                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 912                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 913                         M_EOR(s1, s2, GET_HIGH_REG(d));
 914                         emit_store_dst(jd, iptr, d);
 915                         break;
 916
 917
 918         /* floating operations ************************************************/
 919
 920 #if !defined(ENABLE_SOFTFLOAT)
 921
 922                 case ICMD_FNEG:       /* ..., value  ==> ..., - value                 */
 923
 924                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 925                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 926                         M_MNFS(d, s1);
 927                         emit_store_dst(jd, iptr, d);
 928                         break;
 929
 930                 case ICMD_FADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 931
 932                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 933                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 934                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 935                         M_ADFS(d, s1, s2);
 936                         emit_store_dst(jd, iptr, d);
 937                         break;
 938
 939                 case ICMD_FSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 940
 941                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 942                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 943                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 944                         M_SUFS(d, s1, s2);
 945                         emit_store_dst(jd, iptr, d);
 946                         break;
 947
 948                 case ICMD_FMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 949
 950                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 951                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 952                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 953                         M_MUFS(d, s1, s2);
 954                         emit_store_dst(jd, iptr, d);
 955                         break;
 956
 957                 case ICMD_FDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 958                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 959                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 960                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 961                         M_DVFS(d, s1, s2);
 962                         emit_store_dst(jd, iptr, d);
 963                         break;
 964
 965                 /* ATTENTION: Jave does not want IEEE behaviour in FREM, do
 966                    not use this */
 967
 968                 case ICMD_FREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 969
 970                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 971                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 972                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 973                         M_RMFS(d, s1, s2);
 974                         emit_store_dst(jd, iptr, d);
 975                         break;
 976
 977                 case ICMD_DNEG:       /* ..., value  ==> ..., - value                 */
 978
 979                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 980                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 981                         M_MNFD(d, s1);
 982                         emit_store_dst(jd, iptr, d);
 983                         break;
 984
 985                 case ICMD_DADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 986
 987                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 988                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 989                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 990                         M_ADFD(d, s1, s2);
 991                         emit_store_dst(jd, iptr, d);
 992                         break;
 993
 994                 case ICMD_DSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 995
 996                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 997                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 998                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 999                         M_SUFD(d, s1, s2);
1000                         emit_store_dst(jd, iptr, d);
1001                         break;
1002
1003                 case ICMD_DMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1004
1005                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1006                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1007                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1008                         M_MUFD(d, s1, s2);
1009                         emit_store_dst(jd, iptr, d);
1010                         break;
1011
1012                 case ICMD_DDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1013
1014                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1015                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1016                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1017                         M_DVFD(d, s1, s2);
1018                         emit_store_dst(jd, iptr, d);
1019                         break;
1020
1021                 /* ATTENTION: Jave does not want IEEE behaviour in DREM, do
1022                    not use this */
1023
1024                 case ICMD_DREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
1025
1026                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1027                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1028                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1029                         M_RMFD(d, s1, s2);
1030                         emit_store_dst(jd, iptr, d);
1031                         break;
1032
1033                 case ICMD_I2F:       /* ..., value  ==> ..., (float) value            */
1034
1035                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1036                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1037                         M_FLTS(d, s1);
1038                         emit_store_dst(jd, iptr, d);
1039                         break;
1040
1041                 case ICMD_I2D:       /* ..., value  ==> ..., (double) value           */
1042
1043                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1044                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1045                         M_FLTD(d, s1);
1046                         emit_store_dst(jd, iptr, d);
1047                         break;
1048
1049                 case ICMD_F2I:       /* ..., value  ==> ..., (int) value              */
1050
1051                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1052                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1053                         /* this uses round towards zero, as Java likes it */
1054                         M_FIX(d, s1);
1055                         /* this checks for NaN; to return zero as Java likes it */
1056                         M_CMF(s1, 0x8);
1057                         M_MOVVS_IMM(0, d);
1058                         emit_store_dst(jd, iptr, d);
1059                         break;
1060
1061                 case ICMD_D2I:       /* ..., value  ==> ..., (int) value              */
1062
1063                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1064                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1065                         /* this uses round towards zero, as Java likes it */
1066                         M_FIX(d, s1);
1067                         /* this checks for NaN; to return zero as Java likes it */
1068                         M_CMF(s1, 0x8);
1069                         M_MOVVS_IMM(0, d);
1070                         emit_store_dst(jd, iptr, d);
1071                         break;
1072
1073                 case ICMD_D2F:       /* ..., value  ==> ..., (float) value            */
1074
1075                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1076                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1077                         M_MVFS(d,s1);
1078                         emit_store_dst(jd, iptr, d);
1079                         break;
1080
1081                 case ICMD_F2D:       /* ..., value  ==> ..., (double) value           */
1082
1083                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1084                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1085                         M_MVFD(d,s1);
1086                         emit_store_dst(jd, iptr, d);
1087                         break;
1088
1089                 case ICMD_FCMPG:      /* ..., val1, val2  ==> ..., val1 fcmpg val2    */
1090
1091                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1092                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1093                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1094                         M_CMF(s2, s1);
1095                         M_MOV_IMM(d, 0);
1096                         M_SUBGT_IMM(d, d, 1);
1097                         M_ADDLT_IMM(d, d, 1);
1098                         emit_store_dst(jd, iptr, d);
1099                         break;
1100
1101                 case ICMD_DCMPG:      /* ..., val1, val2  ==> ..., val1 dcmpg val2    */
1102
1103                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1104                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1105                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1106                         M_CMF(s2, s1);
1107                         M_MOV_IMM(d, 0);
1108                         M_SUBGT_IMM(d, d, 1);
1109                         M_ADDLT_IMM(d, d, 1);
1110                         emit_store_dst(jd, iptr, d);
1111                         break;
1112
1113                 case ICMD_FCMPL:      /* ..., val1, val2  ==> ..., val1 fcmpl val2    */
1114
1115                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1116                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1117                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1118                         M_CMF(s1, s2);
1119                         M_MOV_IMM(d, 0);
1120                         M_SUBLT_IMM(d, d, 1);
1121                         M_ADDGT_IMM(d, d, 1);
1122                         emit_store_dst(jd, iptr, d);
1123                         break;
1124
1125                 case ICMD_DCMPL:      /* ..., val1, val2  ==> ..., val1 dcmpl val2    */
1126
1127                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1128                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1129                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1130                         M_CMF(s1, s2);
1131                         M_MOV_IMM(d, 0);
1132                         M_SUBLT_IMM(d, d, 1);
1133                         M_ADDGT_IMM(d, d, 1);
1134                         emit_store_dst(jd, iptr, d);
1135                         break;
1136
1137 #endif /* !defined(ENABLE_SOFTFLOAT) */
1138
1139
1140                 /* memory operations **************************************************/
1141
1142                 case ICMD_ARRAYLENGTH: /* ..., arrayref  ==> ..., length              */
1143
1144                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1145                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1146                         /* implicit null-pointer check */
1147                         M_ILD_INTERN(d, s1, OFFSET(java_array_t, size));
1148                         emit_store_dst(jd, iptr, d);
1149                         break;
1150
1151                 case ICMD_BALOAD:     /* ..., arrayref, index  ==> ..., value         */
1152
1153                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1154                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1155                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1156                         /* implicit null-pointer check */
1157                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1158                         M_ADD(REG_ITMP1, s1, s2); /* REG_ITMP1 = s1 + 1 * s2 */
1159                         M_LDRSB(d, REG_ITMP1, OFFSET(java_bytearray_t, data[0]));
1160                         emit_store_dst(jd, iptr, d);
1161                         break;
1162
1163                 case ICMD_CALOAD:     /* ..., arrayref, index  ==> ..., value         */
1164
1165                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1166                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1167                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1168                         /* implicit null-pointer check */
1169                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1170                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1171                         M_LDRH(d, REG_ITMP1, OFFSET(java_chararray_t, data[0]));
1172                         emit_store_dst(jd, iptr, d);
1173                         break;
1174
1175                 case ICMD_SALOAD:     /* ..., arrayref, index  ==> ..., value         */
1176
1177                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1178                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1179                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1180                         /* implicit null-pointer check */
1181                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1182                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1183                         M_LDRSH(d, REG_ITMP1, OFFSET(java_shortarray_t, data[0]));
1184                         emit_store_dst(jd, iptr, d);
1185                         break;
1186
1187                 case ICMD_IALOAD:     /* ..., arrayref, index  ==> ..., value         */
1188
1189                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1190                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1191                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1192                         /* implicit null-pointer check */
1193                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1194                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1195                         M_ILD_INTERN(d, REG_ITMP1, OFFSET(java_intarray_t, data[0]));
1196                         emit_store_dst(jd, iptr, d);
1197                         break;
1198
1199                 case ICMD_LALOAD:     /* ..., arrayref, index  ==> ..., value         */
1200
1201                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1202                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1203                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1204                         /* implicit null-pointer check */
1205                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1206                         M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1207                         M_LLD_INTERN(d, REG_ITMP3, OFFSET(java_longarray_t, data[0]));
1208                         emit_store_dst(jd, iptr, d);
1209                         break;
1210
1211                 case ICMD_FALOAD:     /* ..., arrayref, index  ==> ..., value         */
1212
1213                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1214                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1215                         /* implicit null-pointer check */
1216                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1217                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1218 #if !defined(ENABLE_SOFTFLOAT)
1219                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1220                         M_FLD_INTERN(d, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1221 #else
1222                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1223                         M_ILD_INTERN(d, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1224 #endif
1225                         emit_store_dst(jd, iptr, d);
1226                         break;
1227
1228                 case ICMD_DALOAD:     /* ..., arrayref, index  ==> ..., value         */
1229
1230                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1231                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1232                         /* implicit null-pointer check */
1233                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1234                         M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1235 #if !defined(ENABLE_SOFTFLOAT)
1236                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1237                         M_DLD_INTERN(d, REG_ITMP3, OFFSET(java_doublearray_t, data[0]));
1238 #else
1239                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1240                         M_LLD_INTERN(d, REG_ITMP3, OFFSET(java_doublearray_t, data[0]));
1241 #endif
1242                         emit_store_dst(jd, iptr, d);
1243                         break;
1244
1245                 case ICMD_AALOAD:     /* ..., arrayref, index  ==> ..., value         */
1246
1247                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1248                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1249                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1250                         /* implicit null-pointer check */
1251                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1252                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1253                         M_LDR_INTERN(d, REG_ITMP1, OFFSET(java_objectarray_t, data[0]));
1254                         emit_store_dst(jd, iptr, d);
1255                         break;
1256
1257                 case ICMD_BASTORE:    /* ..., arrayref, index, value  ==> ...         */
1258
1259                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1260                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1261                         /* implicit null-pointer check */
1262                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1263                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1264                         M_ADD(REG_ITMP1, s1, s2); /* REG_ITMP1 = s1 + 1 * s2 */
1265                         M_STRB(s3, REG_ITMP1, OFFSET(java_bytearray_t, data[0]));
1266                         break;
1267
1268                 case ICMD_CASTORE:    /* ..., arrayref, index, value  ==> ...         */
1269
1270                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1271                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1272                         /* implicit null-pointer check */
1273                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1274                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1275                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1276                         M_STRH(s3, REG_ITMP1, OFFSET(java_chararray_t, data[0]));
1277                         break;
1278
1279                 case ICMD_SASTORE:    /* ..., arrayref, index, value  ==> ...         */
1280
1281                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1282                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1283                         /* implicit null-pointer check */
1284                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1285                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1286                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1287                         M_STRH(s3, REG_ITMP1, OFFSET(java_shortarray_t, data[0]));
1288                         break;
1289
1290                 case ICMD_IASTORE:    /* ..., arrayref, index, value  ==> ...         */
1291
1292                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1293                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1294                         /* implicit null-pointer check */
1295                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1296                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1297                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1298                         M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_intarray_t, data[0]));
1299                         break;
1300
1301                 case ICMD_LASTORE:    /* ..., arrayref, index, value  ==> ...         */
1302
1303                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1304                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1305                         /* implicit null-pointer check */
1306                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1307                         M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1308                         s3 = emit_load_s3(jd, iptr, REG_ITMP12_PACKED);
1309                         M_LST_INTERN(s3, REG_ITMP3, OFFSET(java_longarray_t, data[0]));
1310                         break;
1311
1312                 case ICMD_FASTORE:    /* ..., arrayref, index, value  ==> ...         */
1313
1314                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1315                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1316                         /* implicit null-pointer check */
1317                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1318                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1319 #if !defined(ENABLE_SOFTFLOAT)
1320                         s3 = emit_load_s3(jd, iptr, REG_FTMP1);
1321                         M_FST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1322 #else
1323                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1324                         M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1325 #endif
1326                         break;
1327
1328                 case ICMD_DASTORE:    /* ..., arrayref, index, value  ==> ...         */
1329
1330                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1331                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1332                         /* implicit null-pointer check */
1333                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1334                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 3)); /* REG_ITMP1 = s1 + 8 * s2 */
1335 #if !defined(ENABLE_SOFTFLOAT)
1336                         s3 = emit_load_s3(jd, iptr, REG_FTMP1);
1337                         M_DST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray_t, data[0]));
1338 #else
1339                         s3 = emit_load_s3(jd, iptr, REG_ITMP23_PACKED);
1340                         M_LST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray_t, data[0]));
1341 #endif
1342                         break;
1343
1344                 case ICMD_AASTORE:    /* ..., arrayref, index, value  ==> ...         */
1345
1346                         s1 = emit_load_s1(jd, iptr, REG_A0);
1347                         s2 = emit_load_s2(jd, iptr, REG_ITMP1);
1348                         s3 = emit_load_s3(jd, iptr, REG_A1);
1349
1350                         /* implicit null-pointer check */
1351                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1352
1353                         /* move arguments to argument registers */
1354                         M_INTMOVE(s1, REG_A0);
1355                         M_INTMOVE(s3, REG_A1);
1356
1357                         /* call builtin function */
1358                         disp = dseg_add_functionptr(cd, BUILTIN_canstore);
1359                         M_DSEG_BRANCH(disp);
1360
1361                         /* recompute pv */
1362                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
1363                         M_RECOMPUTE_PV(s1);
1364
1365                         /* check resturn value of builtin */
1366                         emit_exception_check(cd, iptr);
1367
1368                         /* finally store address into array */
1369                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1370                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1371                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1372                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1373                         M_STR_INTERN(s3, REG_ITMP1, OFFSET(java_objectarray_t, data[0]));
1374                         break;
1375
1376                 case ICMD_GETSTATIC:  /* ...  ==> ..., value                          */
1377
1378                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1379                                 uf        = iptr->sx.s23.s3.uf;
1380                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1381                                 disp      = dseg_add_unique_address(cd, NULL);
1382
1383                                 patcher_add_patch_ref(jd, PATCHER_get_putstatic, uf, disp);
1384
1385                                 if (opt_showdisassemble)
1386                                         M_NOP;
1387                         }
1388                         else {
1389                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1390                                 fieldtype = fi->type;
1391                                 disp      = dseg_add_address(cd, fi->value);
1392
1393                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1394                                         patcher_add_patch_ref(jd, PATCHER_initialize_class,
1395                                                             fi->class, 0);
1396
1397                                         if (opt_showdisassemble)
1398                                                 M_NOP;
1399                                 }
1400                         }
1401
1402                         M_DSEG_LOAD(REG_ITMP3, disp);
1403                         switch (fieldtype) {
1404                         case TYPE_INT:
1405 #if defined(ENABLE_SOFTFLOAT)
1406                         case TYPE_FLT:
1407 #endif
1408                         case TYPE_ADR:
1409                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1410                                 M_ILD_INTERN(d, REG_ITMP3, 0);
1411                                 break;
1412                         case TYPE_LNG:
1413 #if defined(ENABLE_SOFTFLOAT)
1414                         case TYPE_DBL:
1415 #endif
1416                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1417                                 M_LLD_INTERN(d, REG_ITMP3, 0);
1418                                 break;
1419 #if !defined(ENABLE_SOFTFLOAT)
1420                         case TYPE_FLT:
1421                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1422                                 M_FLD_INTERN(d, REG_ITMP3, 0);
1423                                 break;
1424                         case TYPE_DBL:
1425                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1426                                 M_DLD_INTERN(d, REG_ITMP3, 0);
1427                                 break;
1428 #endif
1429                         default:
1430                                 assert(0);
1431                         }
1432                         emit_store_dst(jd, iptr, d);
1433                         break;
1434
1435                 case ICMD_PUTSTATIC:  /* ..., value  ==> ...                          */
1436
1437                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1438                                 uf        = iptr->sx.s23.s3.uf;
1439                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1440                                 disp      = dseg_add_unique_address(cd, NULL);
1441
1442                                 patcher_add_patch_ref(jd, PATCHER_get_putstatic, uf, disp);
1443
1444                                 if (opt_showdisassemble)
1445                                         M_NOP;
1446                         }
1447                         else {
1448                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1449                                 fieldtype = fi->type;
1450                                 disp      = dseg_add_address(cd, fi->value);
1451
1452                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1453                                         patcher_add_patch_ref(jd, PATCHER_initialize_class,
1454                                                             fi->class, 0);
1455
1456                                         if (opt_showdisassemble)
1457                                                 M_NOP;
1458                                 }
1459                         }
1460
1461                         M_DSEG_LOAD(REG_ITMP3, disp);
1462                         switch (fieldtype) {
1463                         case TYPE_INT:
1464 #if defined(ENABLE_SOFTFLOAT)
1465                         case TYPE_FLT:
1466 #endif
1467                         case TYPE_ADR:
1468                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1469                                 M_IST_INTERN(s1, REG_ITMP3, 0);
1470                                 break;
1471                         case TYPE_LNG:
1472 #if defined(ENABLE_SOFTFLOAT)
1473                         case TYPE_DBL:
1474 #endif
1475                                 s1 = emit_load_s1(jd, iptr, REG_ITMP12_PACKED);
1476                                 M_LST_INTERN(s1, REG_ITMP3, 0);
1477                                 break;
1478 #if !defined(ENABLE_SOFTFLOAT)
1479                         case TYPE_FLT:
1480                                 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1481                                 M_FST_INTERN(s1, REG_ITMP3, 0);
1482                                 break;
1483                         case TYPE_DBL:
1484                                 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1485                                 M_DST_INTERN(s1, REG_ITMP3, 0);
1486                                 break;
1487 #endif
1488                         default:
1489                                 assert(0);
1490                         }
1491                         break;
1492
1493                 case ICMD_GETFIELD:   /* ..., objectref, value  ==> ...               */
1494
1495                         s1 = emit_load_s1(jd, iptr, REG_ITMP3);
1496                         emit_nullpointer_check(cd, iptr, s1);
1497
1498
1499                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1500                                 uf        = iptr->sx.s23.s3.uf;
1501                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1502                                 disp      = 0;
1503                         }
1504                         else {
1505                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1506                                 fieldtype = fi->type;
1507                                 disp      = fi->offset;
1508                         }
1509
1510 #if !defined(ENABLE_SOFTFLOAT)
1511                         /* HACK: softnull checks on floats */
1512                         if (!INSTRUCTION_MUST_CHECK(iptr) && IS_FLT_DBL_TYPE(fieldtype))
1513                                 emit_nullpointer_check_force(cd, iptr, s1);
1514 #endif
1515
1516                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1517                                 /* XXX REMOVE ME */
1518                                 uf = iptr->sx.s23.s3.uf;
1519
1520                                 patcher_add_patch_ref(jd, PATCHER_get_putfield, uf, 0);
1521
1522                                 if (opt_showdisassemble)
1523                                         M_NOP;
1524                         }
1525
1526                         switch (fieldtype) {
1527                         case TYPE_INT:
1528 #if defined(ENABLE_SOFTFLOAT)
1529                         case TYPE_FLT:
1530 #endif
1531                         case TYPE_ADR:
1532                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1533                                 M_ILD(d, s1, disp);
1534                                 break;
1535                         case TYPE_LNG:
1536 #if defined(ENABLE_SOFTFLOAT)
1537                         case TYPE_DBL:
1538 #endif
1539                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1540                                 M_LLD(d, s1, disp);
1541                                 break;
1542 #if !defined(ENABLE_SOFTFLOAT)
1543                         case TYPE_FLT:
1544                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1545                                 M_FLD(d, s1, disp);
1546                                 break;
1547                         case TYPE_DBL:
1548                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1549                                 M_DLD(d, s1, disp);
1550                                 break;
1551 #endif
1552                         default:
1553                                 assert(0);
1554                         }
1555                         emit_store_dst(jd, iptr, d);
1556                         break;
1557
1558                 case ICMD_PUTFIELD:   /* ..., objectref, value  ==> ...               */
1559
1560                         s1 = emit_load_s1(jd, iptr, REG_ITMP3);
1561                         emit_nullpointer_check(cd, iptr, s1);
1562
1563                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1564                                 uf        = iptr->sx.s23.s3.uf;
1565                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1566                                 disp      = 0;
1567                         }
1568                         else {
1569                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1570                                 fieldtype = fi->type;
1571                                 disp      = fi->offset;
1572                         }
1573
1574 #if !defined(ENABLE_SOFTFLOAT)
1575                         /* HACK: softnull checks on floats */
1576                         if (!INSTRUCTION_MUST_CHECK(iptr) && IS_FLT_DBL_TYPE(fieldtype))
1577                                 emit_nullpointer_check_force(cd, iptr, s1);
1578 #endif
1579
1580                         switch (fieldtype) {
1581                         case TYPE_INT:
1582 #if defined(ENABLE_SOFTFLOAT)
1583                         case TYPE_FLT:
1584 #endif
1585                         case TYPE_ADR:
1586                                 s2 = emit_load_s2(jd, iptr, REG_ITMP1);
1587                                 break;
1588 #if defined(ENABLE_SOFTFLOAT)
1589                         case TYPE_DBL: /* fall through */
1590 #endif
1591                         case TYPE_LNG:
1592                                 s2 = emit_load_s2(jd, iptr, REG_ITMP12_PACKED);
1593                                 break;
1594 #if !defined(ENABLE_SOFTFLOAT)
1595                         case TYPE_FLT:
1596                         case TYPE_DBL:
1597                                 s2 = emit_load_s2(jd, iptr, REG_FTMP1);
1598                                 break;
1599 #endif
1600                         default:
1601                                 assert(0);
1602                         }
1603
1604                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1605                                 /* XXX REMOVE ME */
1606                                 uf = iptr->sx.s23.s3.uf;
1607
1608                                 patcher_add_patch_ref(jd, PATCHER_get_putfield, uf, 0);
1609
1610                                 if (opt_showdisassemble)
1611                                         M_NOP;
1612                         }
1613
1614                         switch (fieldtype) {
1615                         case TYPE_INT:
1616 #if defined(ENABLE_SOFTFLOAT)
1617                         case TYPE_FLT:
1618 #endif
1619                         case TYPE_ADR:
1620                                 M_IST(s2, s1, disp);
1621                                 break;
1622                         case TYPE_LNG:
1623 #if defined(ENABLE_SOFTFLOAT)
1624                         case TYPE_DBL:
1625 #endif
1626                                 M_LST(s2, s1, disp);
1627                                 break;
1628 #if !defined(ENABLE_SOFTFLOAT)
1629                         case TYPE_FLT:
1630                                 M_FST(s2, s1, disp);
1631                                 break;
1632                         case TYPE_DBL:
1633                                 M_DST(s2, s1, disp);
1634                                 break;
1635 #endif
1636                         default:
1637                                 assert(0);
1638                         }
1639                         break;
1640
1641
1642                 /* branch operations **************************************************/
1643
1644                 case ICMD_ATHROW:       /* ..., objectref ==> ... (, objectref)       */
1645
1646                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1647                         M_INTMOVE(s1, REG_ITMP1_XPTR);
1648                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1649                                 patcher_add_patch_ref(jd, PATCHER_resolve_class,
1650                                                                         iptr->sx.s23.s2.uc, 0);
1651
1652                                 if (opt_showdisassemble)
1653                                         M_NOP;
1654                         }
1655                         disp = dseg_add_functionptr(cd, asm_handle_exception);
1656                         M_DSEG_LOAD(REG_ITMP3, disp);
1657                         M_MOV(REG_ITMP2_XPC, REG_PC);
1658                         M_MOV(REG_PC, REG_ITMP3);
1659                         M_NOP;              /* nop ensures that XPC is less than the end  */
1660                                             /* of basic block                             */
1661                         break;
1662
1663                 case ICMD_GOTO:         /* ... ==> ...                                */
1664                 case ICMD_RET:
1665
1666                         emit_br(cd, iptr->dst.block);
1667                         break;
1668
1669                 case ICMD_JSR:          /* ... ==> ...                                */
1670
1671                         emit_br(cd, iptr->sx.s23.s3.jsrtarget.block);
1672                         break;
1673
1674                 case ICMD_IFNULL:       /* ..., value ==> ...                         */
1675                 case ICMD_IFNONNULL:
1676
1677                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1678                         M_TEQ_IMM(s1, 0);
1679                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFNULL, BRANCH_OPT_NONE);
1680                         break;
1681
1682                 case ICMD_IFLT:         /* ..., value ==> ...                         */
1683                 case ICMD_IFLE:         /* op1 = target JavaVM pc, val.i = constant   */
1684                 case ICMD_IFGT:
1685                 case ICMD_IFGE:
1686                 case ICMD_IFEQ:
1687                 case ICMD_IFNE:
1688
1689                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1690                         M_COMPARE(s1, iptr->sx.val.i);
1691                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFEQ, BRANCH_OPT_NONE);
1692                         break;
1693
1694                 case ICMD_IF_LEQ:       /* ..., value ==> ...                         */
1695
1696                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1697                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1698                         if (iptr->sx.val.l == 0) {
1699                                 M_ORR_S(s1, s2, REG_ITMP3);
1700                         }
1701                         else {
1702                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1703                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1704                                 M_CMP(s1, REG_ITMP3);*/
1705                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1706                                 M_CMPEQ(s2, REG_ITMP3);
1707                         }
1708                         emit_beq(cd, iptr->dst.block);
1709                         break;
1710
1711                 case ICMD_IF_LLT:       /* ..., value ==> ...                         */
1712
1713                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1714                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1715                         if (iptr->sx.val.l == 0) {
1716                                 /* if high word is less than zero, the whole long is too */
1717                                 M_CMP_IMM(s1, 0);
1718                                 emit_blt(cd, iptr->dst.block);
1719                         }
1720                         else {
1721                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1722                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1723                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1724                                 M_CMP(s1, REG_ITMP3);*/
1725                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1726                                 M_MOVGT_IMM(2, REG_ITMP1);
1727                                 M_MOVEQ_IMM(1, REG_ITMP1);
1728
1729                                 /* low compare: x=x-1(ifLO) */
1730                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1731                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1732                                 M_CMP(s2, REG_ITMP3);*/
1733                                 M_SUBLO_IMM(REG_ITMP1, REG_ITMP1, 1);
1734
1735                                 /* branch if (x LT 1) */
1736                                 M_CMP_IMM(REG_ITMP1, 1);
1737                                 emit_blt(cd, iptr->dst.block);
1738                         }
1739                         break;
1740
1741                 case ICMD_IF_LLE:       /* ..., value ==> ...                         */
1742
1743                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1744                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1745                         if (iptr->sx.val.l == 0) {
1746                                 /* if high word is less than zero, the whole long is too  */
1747                                 M_CMP_IMM(s1, 0);
1748                                 emit_blt(cd, iptr->dst.block);
1749
1750                                 /* ... otherwise the low word has to be zero (tricky!) */
1751                                 M_CMPEQ_IMM(s2, 0);
1752                                 emit_beq(cd, iptr->dst.block);
1753                         }
1754                         else {
1755                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1756                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1757                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1758                                 M_CMP(s1, REG_ITMP3);*/
1759                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1760                                 M_MOVGT_IMM(2, REG_ITMP1);
1761                                 M_MOVEQ_IMM(1, REG_ITMP1);
1762
1763                                 /* low compare: x=x+1(ifHI) */
1764                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1765                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1766                                 M_CMP(s2, REG_ITMP3);*/
1767                                 M_ADDHI_IMM(REG_ITMP1, REG_ITMP1, 1);
1768
1769                                 /* branch if (x LE 1) */
1770                                 M_CMP_IMM(REG_ITMP1, 1);
1771                                 emit_ble(cd, iptr->dst.block);
1772                         }
1773                         break;
1774
1775                 case ICMD_IF_LGE:       /* ..., value ==> ...                         */
1776
1777                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1778                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1779                         if (iptr->sx.val.l == 0) {
1780                                 /* if high word is greater or equal zero, the whole long is too */
1781                                 M_CMP_IMM(s1, 0);
1782                                 emit_bge(cd, iptr->dst.block);
1783                         }
1784                         else {
1785                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1786                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1787                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1788                                 M_CMP(s1, REG_ITMP3);*/
1789                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1790                                 M_MOVGT_IMM(2, REG_ITMP1);
1791                                 M_MOVEQ_IMM(1, REG_ITMP1);
1792
1793                                 /* low compare: x=x-1(ifLO) */
1794                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1795                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1796                                 M_CMP(s2, REG_ITMP3);*/
1797                                 M_SUBLO_IMM(REG_ITMP1, REG_ITMP1, 1);
1798
1799                                 /* branch if (x GE 1) */
1800                                 M_CMP_IMM(REG_ITMP1, 1);
1801                                 emit_bge(cd, iptr->dst.block);
1802                         }
1803                         break;
1804
1805                 case ICMD_IF_LGT:       /* ..., value ==> ...                         */
1806
1807                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1808                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1809 #if 0
1810                         if (iptr->sx.val.l == 0) {
1811                                 /* if high word is greater than zero, the whole long is too */
1812                                 M_CMP_IMM(s1, 0);
1813                                 M_BGT(0);
1814                                 codegen_add_branch_ref(cd, iptr->dst.block);
1815
1816                                 /* ... or high was zero and low is non zero (tricky!) */
1817                                 M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1818                                 M_MOVLT_IMM(1, REG_ITMP3);
1819                                 M_ORR_S(REG_ITMP3, s2, REG_ITMP3);
1820                                 M_BNE(0);
1821                                 codegen_add_branch_ref(cd, iptr->dst.block);
1822                         }
1823                         else {
1824 #endif
1825                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1826                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1827                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1828                                 M_CMP(s1, REG_ITMP3);*/
1829                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1830                                 M_MOVGT_IMM(2, REG_ITMP1);
1831                                 M_MOVEQ_IMM(1, REG_ITMP1);
1832
1833                                 /* low compare: x=x+1(ifHI) */
1834                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1835                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1836                                 M_CMP(s2, REG_ITMP3);*/
1837                                 M_ADDHI_IMM(REG_ITMP1, REG_ITMP1, 1);
1838
1839                                 /* branch if (x GT 1) */
1840                                 M_CMP_IMM(REG_ITMP1, 1);
1841                                 emit_bgt(cd, iptr->dst.block);
1842 #if 0
1843                         }
1844 #endif
1845                         break;
1846
1847                 case ICMD_IF_LNE:       /* ..., value ==> ...                         */
1848
1849                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1850                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1851                         if (iptr->sx.val.l == 0) {
1852                                 M_ORR_S(s1, s2, REG_ITMP3);
1853                         }
1854                         else {
1855                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1856                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1857                                 M_CMP(s1, REG_ITMP3);*/
1858                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1859                                 M_CMPEQ(s2, REG_ITMP3);
1860                         }
1861                         emit_bne(cd, iptr->dst.block);
1862                         break;
1863
1864                 case ICMD_IF_ICMPEQ:    /* ..., value, value ==> ...                  */
1865                 case ICMD_IF_ICMPNE:
1866                 case ICMD_IF_ICMPLT:
1867                 case ICMD_IF_ICMPLE:
1868                 case ICMD_IF_ICMPGT:
1869                 case ICMD_IF_ICMPGE:
1870
1871                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1872                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1873                         M_CMP(s1, s2);
1874                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IF_ICMPEQ, BRANCH_OPT_NONE);
1875                         break;
1876
1877                 case ICMD_IF_ACMPEQ:    /* ..., value, value ==> ...                  */
1878                 case ICMD_IF_ACMPNE:
1879
1880                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1881                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1882                         M_CMP(s1, s2);
1883                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IF_ACMPEQ, BRANCH_OPT_NONE);
1884                         break;
1885
1886                 case ICMD_IF_LCMPEQ:    /* ..., value, value ==> ...                  */
1887                                         /* op1 = target JavaVM pc                     */
1888
1889                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1890                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1891                         M_CMP(s1, s2);
1892
1893                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1894                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1895                         M_CMPEQ(s1, s2);
1896
1897                         emit_beq(cd, iptr->dst.block);
1898                         break;
1899
1900                 case ICMD_IF_LCMPNE:    /* ..., value, value ==> ...                  */
1901                                         /* op1 = target JavaVM pc                     */
1902
1903                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1904                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1905                         M_CMP(s1, s2);
1906
1907                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1908                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1909                         M_CMPEQ(s1, s2);
1910
1911                         emit_bne(cd, iptr->dst.block);
1912                         break;
1913
1914                 case ICMD_IF_LCMPLT:    /* ..., value, value ==> ...                  */
1915                                         /* op1 = target JavaVM pc                     */
1916
1917                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1918                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1919                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1920                         M_CMP(s1, s2);
1921                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1922                         M_MOVGT_IMM(2, REG_ITMP3);
1923                         M_MOVEQ_IMM(1, REG_ITMP3);
1924
1925                         /* low compare: x=x-1(ifLO) */
1926                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1927                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1928                         M_CMP(s1, s2);
1929                         M_SUBLO_IMM(REG_ITMP3, REG_ITMP3, 1);
1930
1931                         /* branch if (x LT 1) */
1932                         M_CMP_IMM(REG_ITMP3, 1);
1933                         emit_blt(cd, iptr->dst.block);
1934                         break;
1935
1936                 case ICMD_IF_LCMPLE:    /* ..., value, value ==> ...                  */
1937                                         /* op1 = target JavaVM pc                     */
1938
1939                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1940                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1941                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1942                         M_CMP(s1, s2);
1943                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1944                         M_MOVGT_IMM(2, REG_ITMP3);
1945                         M_MOVEQ_IMM(1, REG_ITMP3);
1946
1947                         /* low compare: x=x-1(ifLO) */
1948                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1949                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1950                         M_CMP(s1, s2);
1951                         M_ADDHI_IMM(REG_ITMP3, REG_ITMP3, 1);
1952
1953                         /* branch if (x LE 1) */
1954                         M_CMP_IMM(REG_ITMP3, 1);
1955                         emit_ble(cd, iptr->dst.block);
1956                         break;
1957
1958                 case ICMD_IF_LCMPGT:    /* ..., value, value ==> ...                  */
1959                                         /* op1 = target JavaVM pc                     */
1960
1961                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1962                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1963                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1964                         M_CMP(s1, s2);
1965                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1966                         M_MOVGT_IMM(2, REG_ITMP3);
1967                         M_MOVEQ_IMM(1, REG_ITMP3);
1968
1969                         /* low compare: x=x-1(ifLO) */
1970                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1971                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1972                         M_CMP(s1, s2);
1973                         M_ADDHI_IMM(REG_ITMP3, REG_ITMP3, 1);
1974
1975                         /* branch if (x GT 1) */
1976                         M_CMP_IMM(REG_ITMP3, 1);
1977                         emit_bgt(cd, iptr->dst.block);
1978                         break;
1979
1980                 case ICMD_IF_LCMPGE:    /* ..., value, value ==> ...                  */
1981                                         /* op1 = target JavaVM pc                     */
1982
1983                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1984                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1985                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1986                         M_CMP(s1, s2);
1987                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1988                         M_MOVGT_IMM(2, REG_ITMP3);
1989                         M_MOVEQ_IMM(1, REG_ITMP3);
1990
1991                         /* low compare: x=x-1(ifLO) */
1992                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1993                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1994                         M_CMP(s1, s2);
1995                         M_SUBLO_IMM(REG_ITMP3, REG_ITMP3, 1);
1996
1997                         /* branch if (x GE 1) */
1998                         M_CMP_IMM(REG_ITMP3, 1);
1999                         emit_bge(cd, iptr->dst.block);
2000                         break;
2001
2002                 case ICMD_TABLESWITCH:  /* ..., index ==> ...                         */
2003                         {
2004                         s4 i, l;
2005                         branch_target_t *table;
2006
2007                         table = iptr->dst.table;
2008
2009                         l = iptr->sx.s23.s2.tablelow;
2010                         i = iptr->sx.s23.s3.tablehigh;
2011
2012                         /* calculate new index (index - low) */
2013                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2014                         if (l  == 0) {
2015                                 M_INTMOVE(s1, REG_ITMP1);
2016                         } else if (IS_IMM(l)) {
2017                                 M_SUB_IMM(REG_ITMP1, s1, l);
2018                         } else {
2019                                 ICONST(REG_ITMP2, l);
2020                                 M_SUB(REG_ITMP1, s1, REG_ITMP2);
2021                         }
2022
2023                         /* range check (index <= high-low) */
2024                         i = i - l + 1;
2025                         M_COMPARE(REG_ITMP1, i-1);
2026                         emit_bugt(cd, table[0].block);
2027
2028                         /* build jump table top down and use address of lowest entry */
2029
2030                         table += i;
2031
2032                         while (--i >= 0) {
2033                                 dseg_add_target(cd, table->block);
2034                                 --table;
2035                         }
2036                         }
2037
2038                         /* length of dataseg after last dseg_add_target is used by load */
2039                         /* TODO: this loads from data-segment */
2040                         M_ADD(REG_ITMP2, REG_PV, REG_LSL(REG_ITMP1, 2));
2041                         M_LDR(REG_PC, REG_ITMP2, -(cd->dseglen));
2042                         break;
2043
2044                 case ICMD_LOOKUPSWITCH: /* ..., key ==> ...                           */
2045                         {
2046                         s4 i;
2047                         lookup_target_t *lookup;
2048
2049                         lookup = iptr->dst.lookup;
2050
2051                         i = iptr->sx.s23.s2.lookupcount;
2052
2053                         /* compare keys */
2054                         MCODECHECK((i<<2)+8);
2055                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2056
2057                         while (--i >= 0) {
2058                                 M_COMPARE(s1, lookup->value);
2059                                 emit_beq(cd, lookup->target.block);
2060                                 lookup++;
2061                         }
2062
2063                         /* default branch */
2064                         emit_br(cd, iptr->sx.s23.s3.lookupdefault.block);
2065                         }
2066                         break;
2067
2068                 case ICMD_FRETURN:      /* ..., retvalue ==> ...                      */
2069
2070 #if !defined(ENABLE_SOFTFLOAT)
2071                         REPLACEMENT_POINT_RETURN(cd, iptr);
2072                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
2073                         M_CAST_FLT_TO_INT_TYPED(VAROP(iptr->s1)->type, s1, REG_RESULT);
2074                         goto ICMD_RETURN_do;
2075 #endif
2076
2077                 case ICMD_IRETURN:      /* ..., retvalue ==> ...                      */
2078
2079                         REPLACEMENT_POINT_RETURN(cd, iptr);
2080                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2081                         M_INTMOVE(s1, REG_RESULT);
2082                         goto ICMD_RETURN_do;
2083
2084                 case ICMD_DRETURN:      /* ..., retvalue ==> ...                      */
2085
2086 #if !defined(ENABLE_SOFTFLOAT)
2087                         REPLACEMENT_POINT_RETURN(cd, iptr);
2088                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
2089                         M_CAST_FLT_TO_INT_TYPED(VAROP(iptr->s1)->type, s1, REG_RESULT_PACKED);
2090                         goto ICMD_RETURN_do;
2091 #endif
2092
2093                 case ICMD_LRETURN:      /* ..., retvalue ==> ...                      */
2094
2095                         REPLACEMENT_POINT_RETURN(cd, iptr);
2096                         s1 = emit_load_s1(jd, iptr, REG_RESULT_PACKED);
2097                         M_LNGMOVE(s1, REG_RESULT_PACKED);
2098                         goto ICMD_RETURN_do;
2099
2100                 case ICMD_ARETURN:      /* ..., retvalue ==> ...                      */
2101
2102                         REPLACEMENT_POINT_RETURN(cd, iptr);
2103                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2104                         M_INTMOVE(s1, REG_RESULT);
2105                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2106                                 patcher_add_patch_ref(jd, PATCHER_resolve_class,
2107                                                                         iptr->sx.s23.s2.uc, 0);
2108
2109                                 if (opt_showdisassemble)
2110                                         M_NOP;
2111                         }
2112                         goto ICMD_RETURN_do;
2113
2114                 case ICMD_RETURN:       /* ...  ==> ...                               */
2115
2116                         REPLACEMENT_POINT_RETURN(cd, iptr);
2117                         ICMD_RETURN_do:
2118
2119 #if !defined(NDEBUG)
2120                         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
2121                                 emit_verbosecall_exit(jd);
2122 #endif
2123
2124 #if defined(ENABLE_THREADS)
2125                         /* call monitorexit function */
2126
2127                         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
2128                                 /* stack offset for monitor argument */
2129
2130                                 s1 = rd->memuse * 8;
2131
2132                                 /* we need to save the proper return value */
2133
2134                                 switch (iptr->opc) {
2135                                 case ICMD_IRETURN:
2136                                 case ICMD_ARETURN:
2137                                 case ICMD_LRETURN:
2138                                 case ICMD_FRETURN: /* XXX TWISTI: is that correct? */
2139                                 case ICMD_DRETURN:
2140                                         M_STMFD(BITMASK_RESULT, REG_SP);
2141                                         s1 += 2 * 4;
2142                                         break;
2143                                 }
2144
2145                                 M_LDR(REG_A0, REG_SP, s1);
2146                                 disp = dseg_add_functionptr(cd, LOCK_monitor_exit);
2147                                 M_DSEG_BRANCH(disp);
2148
2149                                 /* we no longer need PV here, no more loading */
2150                                 /*s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2151                                 M_RECOMPUTE_PV(s1);*/
2152
2153                                 switch (iptr->opc) {
2154                                 case ICMD_IRETURN:
2155                                 case ICMD_ARETURN:
2156                                 case ICMD_LRETURN:
2157                                 case ICMD_FRETURN: /* XXX TWISTI: is that correct? */
2158                                 case ICMD_DRETURN:
2159                                         M_LDMFD(BITMASK_RESULT, REG_SP);
2160                                         break;
2161                                 }
2162                         }
2163 #endif
2164
2165                         /* deallocate stackframe for spilled variables */
2166
2167                         if ((cd->stackframesize / 4 - savedregs_num) > 0)
2168                                 M_ADD_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - savedregs_num);
2169
2170                         /* restore callee saved registers + do return */
2171
2172                         if (savedregs_bitmask) {
2173                                 if (!jd->isleafmethod) {
2174                                         savedregs_bitmask &= ~(1<<REG_LR);
2175                                         savedregs_bitmask |= (1<<REG_PC);
2176                                 }
2177                                 M_LDMFD(savedregs_bitmask, REG_SP);
2178                         }
2179
2180                         /* if LR was not on stack, we need to return manually */
2181
2182                         if (jd->isleafmethod)
2183                                 M_MOV(REG_PC, REG_LR);
2184                         break;
2185
2186                 case ICMD_BUILTIN:      /* ..., arg1, arg2, arg3 ==> ...              */
2187
2188                         bte = iptr->sx.s23.s3.bte;
2189                         md  = bte->md;
2190                         goto ICMD_INVOKE_do;
2191
2192                 case ICMD_INVOKESTATIC: /* ..., [arg1, [arg2 ...]] ==> ...            */
2193                 case ICMD_INVOKESPECIAL:/* ..., objectref, [arg1, [arg2 ...]] ==> ... */
2194                 case ICMD_INVOKEVIRTUAL:/* op1 = arg count, val.a = method pointer    */
2195                 case ICMD_INVOKEINTERFACE:
2196
2197                         REPLACEMENT_POINT_INVOKE(cd, iptr);
2198
2199                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2200                                 lm = NULL;
2201                                 um = iptr->sx.s23.s3.um;
2202                                 md = um->methodref->parseddesc.md;
2203                         }
2204                         else {
2205                                 lm = iptr->sx.s23.s3.fmiref->p.method;
2206                                 um = NULL;
2207                                 md = lm->parseddesc;
2208                         }
2209
2210                 ICMD_INVOKE_do:
2211                         /* copy arguments to registers or stack location */
2212
2213                         s3 = md->paramcount;
2214
2215                         MCODECHECK((s3 << 1) + 64);
2216
2217                         for (s3 = s3 - 1; s3 >= 0; s3--) {
2218                                 var = VAR(iptr->sx.s23.s2.args[s3]);
2219                                 d   = md->params[s3].regoff;
2220
2221                                 if (var->flags & PREALLOC) /* argument was precolored? */
2222                                         continue;
2223
2224                                 /* TODO: document me */
2225 #if !defined(ENABLE_SOFTFLOAT)
2226                                 if (IS_INT_LNG_TYPE(var->type)) {
2227 #endif /* !defined(ENABLE_SOFTFLOAT) */
2228                                         if (!md->params[s3].inmemory) {
2229                                                 s1 = emit_load(jd, iptr, var, d);
2230
2231                                                 if (IS_2_WORD_TYPE(var->type))
2232                                                         M_LNGMOVE(s1, d);
2233                                                 else
2234                                                         M_INTMOVE(s1, d);
2235                                         }
2236                                         else {
2237                                                 if (IS_2_WORD_TYPE(var->type)) {
2238                                                         s1 = emit_load(jd, iptr, var, REG_ITMP12_PACKED);
2239                                                         M_LST(s1, REG_SP, d);
2240                                                 }
2241                                                 else {
2242                                                         s1 = emit_load(jd, iptr, var, REG_ITMP1);
2243                                                         M_IST(s1, REG_SP, d);
2244                                                 }
2245                                         }
2246 #if !defined(ENABLE_SOFTFLOAT)
2247                                 }
2248                                 else {
2249                                         if (!md->params[s3].inmemory) {
2250                                                 s1 = emit_load(jd, iptr, var, REG_FTMP1);
2251                                                 M_CAST_FLT_TO_INT_TYPED(var->type, s1, d);
2252                                         }
2253                                         else {
2254                                                 s1 = emit_load(jd, iptr, var, REG_FTMP1);
2255                                                 if (IS_2_WORD_TYPE(var->type))
2256                                                         M_DST(s1, REG_SP, d);
2257                                                 else
2258                                                         M_FST(s1, REG_SP, d);
2259                                         }
2260                                 }
2261 #endif /* !defined(ENABLE_SOFTFLOAT) */
2262                         }
2263
2264                         switch (iptr->opc) {
2265                         case ICMD_BUILTIN:
2266                                 disp = dseg_add_functionptr(cd, bte->fp);
2267
2268                                 M_DSEG_LOAD(REG_PV, disp); /* pointer to built-in-function */
2269
2270                                 /* generate the actual call */
2271
2272                                 M_MOV(REG_LR, REG_PC);
2273                                 M_MOV(REG_PC, REG_PV);
2274                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2275                                 M_RECOMPUTE_PV(s1);
2276
2277                                 emit_exception_check(cd, iptr);
2278                                 break;
2279
2280                         case ICMD_INVOKESPECIAL:
2281                                 emit_nullpointer_check(cd, iptr, REG_A0);
2282                                 /* fall through */
2283
2284                         case ICMD_INVOKESTATIC:
2285                                 if (lm == NULL) {
2286                                         disp = dseg_add_unique_address(cd, NULL);
2287
2288                                         patcher_add_patch_ref(jd, PATCHER_invokestatic_special,
2289                                                                                 um, disp);
2290
2291                                         if (opt_showdisassemble)
2292                                                 M_NOP;
2293                                 }
2294                                 else
2295                                         disp = dseg_add_address(cd, lm->stubroutine);
2296
2297                                 M_DSEG_LOAD(REG_PV, disp);            /* Pointer to method */
2298
2299                                 /* generate the actual call */
2300
2301                                 M_MOV(REG_LR, REG_PC);
2302                                 M_MOV(REG_PC, REG_PV);
2303                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2304                                 M_RECOMPUTE_PV(s1);
2305                                 break;
2306
2307                         case ICMD_INVOKEVIRTUAL:
2308                                 if (lm == NULL) {
2309                                         patcher_add_patch_ref(jd, PATCHER_invokevirtual, um, 0);
2310
2311                                         if (opt_showdisassemble)
2312                                                 M_NOP;
2313
2314                                         s1 = 0;
2315                                 }
2316                                 else
2317                                         s1 = OFFSET(vftbl_t, table[0]) +
2318                                                 sizeof(methodptr) * lm->vftblindex;
2319
2320                                 /* implicit null-pointer check */
2321                                 M_LDR_INTERN(REG_METHODPTR, REG_A0,
2322                                                          OFFSET(java_object_t, vftbl));
2323                                 M_LDR_INTERN(REG_PV, REG_METHODPTR, s1);
2324
2325                                 /* generate the actual call */
2326
2327                                 M_MOV(REG_LR, REG_PC);
2328                                 M_MOV(REG_PC, REG_PV);
2329                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2330                                 M_RECOMPUTE_PV(s1);
2331                                 break;
2332
2333                         case ICMD_INVOKEINTERFACE:
2334                                 if (lm == NULL) {
2335                                         patcher_add_patch_ref(jd, PATCHER_invokeinterface, um, 0);
2336
2337                                         if (opt_showdisassemble)
2338                                                 M_NOP;
2339
2340                                         s1 = 0;
2341                                         s2 = 0;
2342                                 }
2343                                 else {
2344                                         s1 = OFFSET(vftbl_t, interfacetable[0]) -
2345                                                 sizeof(methodptr*) * lm->class->index;
2346                                         s2 = sizeof(methodptr) * (lm - lm->class->methods);
2347                                 }
2348
2349                                 /* implicit null-pointer check */
2350                                 M_LDR_INTERN(REG_METHODPTR, REG_A0,
2351                                                          OFFSET(java_object_t, vftbl));
2352                                 M_LDR_INTERN(REG_METHODPTR, REG_METHODPTR, s1);
2353                                 M_LDR_INTERN(REG_PV, REG_METHODPTR, s2);
2354
2355                                 /* generate the actual call */
2356
2357                                 M_MOV(REG_LR, REG_PC);
2358                                 M_MOV(REG_PC, REG_PV);
2359                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2360                                 M_RECOMPUTE_PV(s1);
2361                                 break;
2362                         }
2363
2364                         /* store size of call code in replacement point */
2365                         REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2366
2367                         /* store return value */
2368
2369                         d = md->returntype.type;
2370
2371 #if !defined(__SOFTFP__)
2372                         /* TODO: this is only a hack, since we use R0/R1 for float
2373                            return!  this depends on gcc; it is independent from
2374                            our ENABLE_SOFTFLOAT define */
2375                         if (iptr->opc == ICMD_BUILTIN && d != TYPE_VOID && IS_FLT_DBL_TYPE(d)) {
2376 #if 0 && !defined(NDEBUG)
2377                                 dolog("BUILTIN that returns float or double (%s.%s)", m->class->name->text, m->name->text);
2378 #endif
2379                                 /* we cannot use this macro, since it is not defined
2380                                    in ENABLE_SOFTFLOAT M_CAST_FLT_TO_INT_TYPED(d,
2381                                    REG_FRESULT, REG_RESULT_TYPED(d)); */
2382                                 if (IS_2_WORD_TYPE(d)) {
2383                                         DCD(0xed2d8102); /* stfd    f0, [sp, #-8]! */
2384                                         M_LDRD_UPDATE(REG_RESULT_PACKED, REG_SP, 8);
2385                                 } else {
2386                                         DCD(0xed2d0101); /* stfs    f0, [sp, #-4]!*/
2387                                         M_LDR_UPDATE(REG_RESULT, REG_SP, 4);
2388                                 }
2389                         }
2390 #endif
2391
2392                         if (d != TYPE_VOID) {
2393 #if !defined(ENABLE_SOFTFLOAT)
2394                                 if (IS_INT_LNG_TYPE(d)) {
2395 #endif /* !defined(ENABLE_SOFTFLOAT) */
2396                                         if (IS_2_WORD_TYPE(d)) {
2397                                                 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
2398                                                 M_LNGMOVE(REG_RESULT_PACKED, s1);
2399                                         }
2400                                         else {
2401                                                 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2402                                                 M_INTMOVE(REG_RESULT, s1);
2403                                         }
2404
2405 #if !defined(ENABLE_SOFTFLOAT)
2406                                 } else {
2407                                         s1 = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
2408                                         M_CAST_INT_TO_FLT_TYPED(VAROP(iptr->dst)->type, REG_RESULT_TYPED(VAROP(iptr->dst)->type), s1);
2409                                 }
2410 #endif /* !defined(ENABLE_SOFTFLOAT) */
2411
2412                                 emit_store_dst(jd, iptr, s1);
2413                         }
2414                         break;
2415
2416                 case ICMD_CHECKCAST:  /* ..., objectref ==> ..., objectref            */
2417
2418                         if (!(iptr->flags.bits & INS_FLAG_ARRAY)) {
2419                                 /* object type cast-check */
2420
2421                         classinfo *super;
2422                         s4         superindex;
2423
2424                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2425                                 super      = NULL;
2426                                 superindex = 0;
2427                         }
2428                         else {
2429                                 super      = iptr->sx.s23.s3.c.cls;
2430                                 superindex = super->index;
2431                         }
2432
2433                                 if ((super == NULL) || !(super->flags & ACC_INTERFACE))
2434                                         CODEGEN_CRITICAL_SECTION_NEW;
2435
2436                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2437
2438                         /* if class is not resolved, check which code to call */
2439
2440                         if (super == NULL) {
2441                                 M_TST(s1, s1);
2442                                 emit_label_beq(cd, BRANCH_LABEL_1);
2443
2444                                 disp = dseg_add_unique_s4(cd, 0); /* super->flags */
2445                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_flags,
2446                                                     iptr->sx.s23.s3.c.ref, disp);
2447
2448                                 if (opt_showdisassemble)
2449                                         M_NOP;
2450
2451                                 M_DSEG_LOAD(REG_ITMP2, disp);
2452                                 disp = dseg_add_s4(cd, ACC_INTERFACE);
2453                                 M_DSEG_LOAD(REG_ITMP3, disp);
2454                                 M_TST(REG_ITMP2, REG_ITMP3);
2455                                 emit_label_beq(cd, BRANCH_LABEL_2);
2456                         }
2457
2458                         /* interface checkcast code */
2459
2460                         if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2461                                 if ((super == NULL) || !IS_IMM(superindex)) {
2462                                         disp = dseg_add_unique_s4(cd, superindex);
2463                                 }
2464                                 if (super == NULL) {
2465                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_index,
2466                                                             iptr->sx.s23.s3.c.ref, disp);
2467
2468                                         if (opt_showdisassemble)
2469                                                 M_NOP;
2470                                 }
2471                                 else {
2472                                         M_TST(s1, s1);
2473                                         emit_label_beq(cd, BRANCH_LABEL_3);
2474                                 }
2475
2476                                 M_LDR_INTERN(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
2477                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, interfacetablelength));
2478
2479                                 /* we put unresolved or non-immediate superindices onto dseg */
2480                                 if ((super == NULL) || !IS_IMM(superindex)) {
2481                                         /* disp was computed before we added the patcher */
2482                                         M_DSEG_LOAD(REG_ITMP2, disp);
2483                                         M_CMP(REG_ITMP3, REG_ITMP2);
2484                                 } else {
2485                                         assert(IS_IMM(superindex));
2486                                         M_CMP_IMM(REG_ITMP3, superindex);
2487                                 }
2488
2489                                 emit_classcast_check(cd, iptr, BRANCH_LE, REG_ITMP3, s1);
2490
2491                                 /* if we loaded the superindex out of the dseg above, we do
2492                                    things differently here! */
2493                                 if ((super == NULL) || !IS_IMM(superindex)) {
2494
2495                                         M_LDR_INTERN(REG_ITMP3, s1, OFFSET(java_object_t, vftbl));
2496
2497                                         /* this assumes something */
2498                                         assert(OFFSET(vftbl_t, interfacetable[0]) == 0);
2499
2500                                         /* this does: REG_ITMP3 - superindex * sizeof(methodptr*) */
2501                                         assert(sizeof(methodptr*) == 4);
2502                                         M_SUB(REG_ITMP2, REG_ITMP3, REG_LSL(REG_ITMP2, 2));
2503
2504                                         s2 = 0;
2505
2506                                 } else {
2507
2508                                         s2 = OFFSET(vftbl_t, interfacetable[0]) -
2509                                                                 superindex * sizeof(methodptr*);
2510
2511                                 }
2512
2513                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, s2);
2514                                 M_TST(REG_ITMP3, REG_ITMP3);
2515                                 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_ITMP3, s1);
2516
2517                                 if (super == NULL)
2518                                         emit_label_br(cd, BRANCH_LABEL_4);
2519                                 else
2520                                         emit_label(cd, BRANCH_LABEL_3);
2521                         }
2522
2523                         /* class checkcast code */
2524
2525                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2526                                 if (super == NULL) {
2527                                         emit_label(cd, BRANCH_LABEL_2);
2528
2529                                         disp = dseg_add_unique_address(cd, NULL);
2530
2531                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_vftbl,
2532                                                             iptr->sx.s23.s3.c.ref,
2533                                                                                 disp);
2534
2535                                         if (opt_showdisassemble)
2536                                                 M_NOP;
2537                                 }
2538                                 else {
2539                                         disp = dseg_add_address(cd, super->vftbl);
2540
2541                                         M_TST(s1, s1);
2542                                         emit_label_beq(cd, BRANCH_LABEL_5);
2543                                 }
2544
2545                                 M_LDR_INTERN(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
2546                                 M_DSEG_LOAD(REG_ITMP3, disp);
2547
2548                                 CODEGEN_CRITICAL_SECTION_START;
2549
2550                                 M_LDR_INTERN(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, baseval));
2551                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, baseval));
2552                                 M_SUB(REG_ITMP2, REG_ITMP2, REG_ITMP3);
2553                                 M_DSEG_LOAD(REG_ITMP3, disp);
2554                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, diffval));
2555
2556                                 CODEGEN_CRITICAL_SECTION_END;
2557
2558                                 M_CMP(REG_ITMP2, REG_ITMP3);
2559                                 emit_classcast_check(cd, iptr, BRANCH_UGT, 0, s1);
2560
2561                                 if (super != NULL)
2562                                         emit_label(cd, BRANCH_LABEL_5);
2563                         }
2564
2565                         if (super == NULL) {
2566                                 emit_label(cd, BRANCH_LABEL_1);
2567                                 emit_label(cd, BRANCH_LABEL_4);
2568                         }
2569
2570                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
2571                         }
2572                         else {
2573                                 /* array type cast-check */
2574
2575                                 s1 = emit_load_s1(jd, iptr, REG_A0);
2576                                 M_INTMOVE(s1, REG_A0);
2577
2578                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2579                                         disp = dseg_add_unique_address(cd, NULL);
2580
2581                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
2582                                                                                 iptr->sx.s23.s3.c.ref,
2583                                                                                 disp);
2584
2585                                         if (opt_showdisassemble)
2586                                                 M_NOP;
2587                                 }
2588                                 else
2589                                         disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2590
2591                                 M_DSEG_LOAD(REG_A1, disp);
2592                                 disp = dseg_add_functionptr(cd, BUILTIN_arraycheckcast);
2593                                 M_DSEG_BRANCH(disp);
2594
2595                                 /* recompute pv */
2596                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2597                                 M_RECOMPUTE_PV(disp);
2598
2599                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2600                                 M_TST(REG_RESULT, REG_RESULT);
2601                                 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_RESULT, s1);
2602
2603                                 d = codegen_reg_of_dst(jd, iptr, s1);
2604                         }
2605
2606                         M_INTMOVE(s1, d);
2607                         emit_store_dst(jd, iptr, d);
2608                         break;
2609
2610                 case ICMD_INSTANCEOF: /* ..., objectref ==> ..., intresult            */
2611
2612                         {
2613                         classinfo *super;
2614                         s4         superindex;
2615
2616                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2617                                 super      = NULL;
2618                                 superindex = 0;
2619                         }
2620                         else {
2621                                 super      = iptr->sx.s23.s3.c.cls;
2622                                 superindex = super->index;
2623                         }
2624
2625                         if ((super == NULL) || !(super->flags & ACC_INTERFACE))
2626                                 CODEGEN_CRITICAL_SECTION_NEW;
2627
2628                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2629                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
2630
2631                         if (s1 == d) {
2632                                 M_MOV(REG_ITMP1, s1);
2633                                 s1 = REG_ITMP1;
2634                         }
2635
2636                         /* if class is not resolved, check which code to call */
2637
2638                         if (super == NULL) {
2639                                 M_EOR(d, d, d);
2640
2641                                 M_TST(s1, s1);
2642                                 emit_label_beq(cd, BRANCH_LABEL_1);
2643
2644                                 disp = dseg_add_unique_s4(cd, 0); /* super->flags */
2645                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_flags,
2646                                                     iptr->sx.s23.s3.c.ref, disp);
2647
2648                                 if (opt_showdisassemble)
2649                                         M_NOP;
2650
2651                                 M_DSEG_LOAD(REG_ITMP2, disp);
2652                                 disp = dseg_add_s4(cd, ACC_INTERFACE);
2653                                 M_DSEG_LOAD(REG_ITMP3, disp);
2654                                 M_TST(REG_ITMP2, REG_ITMP3);
2655                                 emit_label_beq(cd, BRANCH_LABEL_2);
2656                         }
2657
2658                         /* interface checkcast code */
2659
2660                         if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2661                                 if ((super == NULL) || !IS_IMM(superindex)) {
2662                                         disp = dseg_add_unique_s4(cd, superindex);
2663                                 }
2664                                 if (super == NULL) {
2665                                         /* If d == REG_ITMP2, then it's destroyed in check
2666                                            code above.  */
2667                                         if (d == REG_ITMP2)
2668                                                 M_EOR(d, d, d);
2669
2670                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_index,
2671                                                             iptr->sx.s23.s3.c.ref, disp);
2672
2673                                         if (opt_showdisassemble)
2674                                                 M_NOP;
2675                                 }
2676                                 else {
2677                                         M_EOR(d, d, d);
2678                                         M_TST(s1, s1);
2679                                         emit_label_beq(cd, BRANCH_LABEL_3);
2680                                 }
2681
2682                                 M_LDR_INTERN(REG_ITMP1, s1, OFFSET(java_object_t, vftbl));
2683                                 M_LDR_INTERN(REG_ITMP3,
2684                                                          REG_ITMP1, OFFSET(vftbl_t, interfacetablelength));
2685
2686                                 /* we put unresolved or non-immediate superindices onto dseg
2687                                    and do things slightly different */
2688                                 if ((super == NULL) || !IS_IMM(superindex)) {
2689                                         /* disp was computed before we added the patcher */
2690                                         M_DSEG_LOAD(REG_ITMP2, disp);
2691                                         M_CMP(REG_ITMP3, REG_ITMP2);
2692
2693                                         if (d == REG_ITMP2) {
2694                                                 M_EORLE(d, d, d);
2695                                                 M_BLE(4);
2696                                         } else {
2697                                                 M_BLE(3);
2698                                         }
2699
2700                                         /* this assumes something */
2701                                         assert(OFFSET(vftbl_t, interfacetable[0]) == 0);
2702
2703                                         /* this does: REG_ITMP3 - superindex * sizeof(methodptr*) */
2704                                         assert(sizeof(methodptr*) == 4);
2705                                         M_SUB(REG_ITMP1, REG_ITMP1, REG_LSL(REG_ITMP2, 2));
2706
2707                                         if (d == REG_ITMP2) {
2708                                                 M_EOR(d, d, d);
2709                                         }
2710
2711                                         s2 = 0;
2712
2713                                 } else {
2714                                         assert(IS_IMM(superindex));
2715                                         M_CMP_IMM(REG_ITMP3, superindex);
2716
2717                                         M_BLE(2);
2718
2719                                         s2 = OFFSET(vftbl_t, interfacetable[0]) -
2720                                                 superindex * sizeof(methodptr*);
2721
2722                                 }
2723
2724                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP1, s2);
2725                                 M_TST(REG_ITMP3, REG_ITMP3);
2726                                 M_MOVNE_IMM(1, d);
2727
2728                                 if (super == NULL)
2729                                         emit_label_br(cd, BRANCH_LABEL_4);
2730                                 else
2731                                         emit_label(cd, BRANCH_LABEL_3);
2732                         }
2733
2734                         /* class checkcast code */
2735
2736                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2737                                 if (super == NULL) {
2738                                         emit_label(cd, BRANCH_LABEL_2);
2739
2740                                         disp = dseg_add_unique_address(cd, NULL);
2741
2742                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_vftbl,
2743                                                             iptr->sx.s23.s3.c.ref, disp);
2744
2745                                         if (opt_showdisassemble)
2746                                                 M_NOP;
2747                                 }
2748                                 else {
2749                                         disp = dseg_add_address(cd, super->vftbl);
2750
2751                                         M_EOR(d, d, d);
2752                                         M_TST(s1, s1);
2753                                         emit_label_beq(cd, BRANCH_LABEL_5);
2754                                 }
2755
2756                                 M_LDR_INTERN(REG_ITMP1, s1, OFFSET(java_object_t, vftbl));
2757                                 M_DSEG_LOAD(REG_ITMP2, disp);
2758
2759                                 CODEGEN_CRITICAL_SECTION_START;
2760
2761                                 M_LDR_INTERN(REG_ITMP1, REG_ITMP1, OFFSET(vftbl_t, baseval));
2762                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2763                                 M_LDR_INTERN(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2764
2765                                 CODEGEN_CRITICAL_SECTION_END;
2766
2767                                 M_SUB(REG_ITMP1, REG_ITMP1, REG_ITMP3);
2768                                 M_CMP(REG_ITMP1, REG_ITMP2);
2769                                 /* If d == REG_ITMP2, then it's destroyed */
2770                                 if (d == REG_ITMP2)
2771                                         M_EOR(d, d, d);
2772                                 M_MOVLS_IMM(1, d);
2773
2774                                 if (super != NULL)
2775                                         emit_label(cd, BRANCH_LABEL_5);
2776                         }
2777
2778                         if (super == NULL) {
2779                                 emit_label(cd, BRANCH_LABEL_1);
2780                                 emit_label(cd, BRANCH_LABEL_4);
2781                         }
2782
2783                         }
2784
2785                         emit_store_dst(jd, iptr, d);
2786                         break;
2787
2788                 case ICMD_MULTIANEWARRAY:/* ..., cnt1, [cnt2, ...] ==> ..., arrayref  */
2789
2790                         /* copy sizes to stack if necessary  */
2791
2792                         MCODECHECK((iptr->s1.argcount << 1) + 64);
2793
2794                         for (s1 = iptr->s1.argcount; --s1 >= 0; ) {
2795
2796                                 var = VAR(iptr->sx.s23.s2.args[s1]);
2797
2798                                 /* copy SAVEDVAR sizes to stack */
2799
2800                                 if (!(var->flags & PREALLOC)) {
2801                                         s2 = emit_load(jd, iptr, var, REG_ITMP1);
2802                                         M_STR(s2, REG_SP, s1 * 4);
2803                                 }
2804                         }
2805
2806                         /* a0 = dimension count */
2807
2808                         assert(IS_IMM(iptr->s1.argcount));
2809                         M_MOV_IMM(REG_A0, iptr->s1.argcount);
2810
2811                         /* is patcher function set? */
2812
2813                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2814                                 disp = dseg_add_unique_address(cd, NULL);
2815
2816                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
2817                                                                         iptr->sx.s23.s3.c.ref, disp);
2818
2819                                 if (opt_showdisassemble)
2820                                         M_NOP;
2821                         }
2822                         else
2823                                 disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2824
2825                         /* a1 = arraydescriptor */
2826
2827                         M_DSEG_LOAD(REG_A1, disp);
2828
2829                         /* a2 = pointer to dimensions = stack pointer */
2830
2831                         M_INTMOVE(REG_SP, REG_A2);
2832
2833                         /* call builtin_multianewarray here */
2834
2835                         disp = dseg_add_functionptr(cd, BUILTIN_multianewarray);
2836                         M_DSEG_BRANCH(disp);
2837
2838                         /* recompute pv */
2839
2840                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2841                         M_RECOMPUTE_PV(s1);
2842
2843                         /* check for exception before result assignment */
2844
2845                         emit_exception_check(cd, iptr);
2846
2847                         /* get arrayref */
2848
2849                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2850                         M_INTMOVE(REG_RESULT, d);
2851                         emit_store_dst(jd, iptr, d);
2852                         break;
2853
2854                 case ICMD_CHECKNULL:  /* ..., objectref  ==> ..., objectref           */
2855
2856                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2857                         emit_nullpointer_check(cd, iptr, s1);
2858                         break;
2859
2860                 default:
2861                         exceptions_throw_internalerror("Unknown ICMD %d during code generation",
2862                                                                                    iptr->opc);
2863                         return false;
2864                 } /* the big switch */
2865
2866                 } /* for all instructions */
2867
2868         } /* for all basic blocks */
2869
2870         dseg_createlinenumbertable(cd);
2871
2872
2873         /* generate traps */
2874
2875         emit_patcher_traps(jd);
2876
2877         /* everything's ok */
2878
2879         return true;
2880 }
2881
2882
2883 /* codegen_emit_stub_compiler **************************************************
2884
2885    Emits a stub routine which calls the compiler.
2886
2887 *******************************************************************************/
2888
2889 void codegen_emit_stub_compiler(jitdata *jd)
2890 {
2891         methodinfo  *m;
2892         codegendata *cd;
2893
2894         /* get required compiler data */
2895
2896         m  = jd->m;
2897         cd = jd->cd;
2898
2899         /* code for the stub */
2900
2901         M_LDR_INTERN(REG_ITMP1, REG_PC, -(2 * 4 + 2 * SIZEOF_VOID_P));
2902         M_LDR_INTERN(REG_PC, REG_PC, -(3 * 4 + 3 * SIZEOF_VOID_P));
2903 }
2904
2905
2906 /* codegen_emit_stub_native ****************************************************
2907
2908    Emits a stub routine which calls a native method.
2909
2910 *******************************************************************************/
2911
2912 void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f)
2913 {
2914         methodinfo  *m;
2915         codeinfo    *code;
2916         codegendata *cd;
2917         s4           nativeparams;
2918         methoddesc  *md;
2919         s4           i, j;
2920         s4           t;
2921         s4           disp, funcdisp, s1, s2;
2922
2923         /* get required compiler data */
2924
2925         m    = jd->m;
2926         code = jd->code;
2927         cd   = jd->cd;
2928
2929         /* initialize variables */
2930
2931         md = m->parseddesc;
2932         nativeparams = (m->flags & ACC_STATIC) ? 2 : 1;
2933
2934         /* calculate stackframe size */
2935
2936         cd->stackframesize =
2937                 4 +                                                /* return address  */
2938                 sizeof(stackframeinfo) +                           /* stackframeinfo  */
2939                 sizeof(localref_table) +                           /* localref_table  */
2940                 nmd->memuse * 4;                                   /* stack arguments */
2941
2942         /* align stack to 8-byte */
2943
2944         cd->stackframesize = (cd->stackframesize + 4) & ~4;
2945
2946         /* create method header */
2947
2948         (void) dseg_add_unique_address(cd, code);              /* CodeinfoPointer */
2949         (void) dseg_add_unique_s4(cd, cd->stackframesize);     /* FrameSize       */
2950         (void) dseg_add_unique_s4(cd, 0);                      /* IsSync          */
2951         (void) dseg_add_unique_s4(cd, 0);                      /* IsLeaf          */
2952         (void) dseg_add_unique_s4(cd, 0);                      /* IntSave         */
2953         (void) dseg_add_unique_s4(cd, 0);                      /* FltSave         */
2954         (void) dseg_addlinenumbertablesize(cd);
2955         (void) dseg_add_unique_s4(cd, 0);                      /* ExTableSize     */
2956
2957         /* generate stub code */
2958
2959         M_STMFD(1<<REG_LR, REG_SP);
2960         M_SUB_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - 1);
2961
2962 #if !defined(NDEBUG)
2963         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
2964                 emit_verbosecall_enter(jd);
2965 #endif
2966
2967         /* get function address (this must happen before the stackframeinfo) */
2968
2969         funcdisp = dseg_add_functionptr(cd, f);
2970
2971 #if !defined(WITH_STATIC_CLASSPATH)
2972         if (f == NULL) {
2973                 patcher_add_patch_ref(jd, PATCHER_resolve_native_function, m, funcdisp);
2974
2975                 if (opt_showdisassemble)
2976                         M_NOP;
2977         }
2978 #endif
2979
2980         /* Save integer and float argument registers (these are 4
2981            registers, stack is 8-byte aligned). */
2982
2983         M_STMFD(BITMASK_ARGS, REG_SP);
2984         /* TODO: floating point */
2985
2986         /* create native stackframe info */
2987
2988         assert(IS_IMM(4*4 + cd->stackframesize));
2989         M_ADD_IMM(REG_A0, REG_SP, 4*4 + cd->stackframesize - SIZEOF_VOID_P);
2990         M_MOV(REG_A1, REG_PV);
2991         M_ADD_IMM(REG_A2, REG_SP, 4*4 + cd->stackframesize);
2992         M_LDR_INTERN(REG_A3, REG_SP, 4*4 + cd->stackframesize - SIZEOF_VOID_P);
2993         disp = dseg_add_functionptr(cd, codegen_start_native_call);
2994         M_DSEG_BRANCH(disp);
2995
2996         /* recompute pv */
2997
2998         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2999         M_RECOMPUTE_PV(s1);
3000
3001         /* Restore integer and float argument registers (these are 4
3002            registers, stack is 8-byte aligned). */
3003
3004         M_LDMFD(BITMASK_ARGS, REG_SP);
3005         /* TODO: floating point */
3006
3007         /* copy or spill arguments to new locations */
3008         /* ATTENTION: the ARM has only integer argument registers! */
3009
3010         for (i = md->paramcount - 1, j = i + nativeparams; i >= 0; i--, j--) {
3011                 t = md->paramtypes[i].type;
3012
3013                 if (!md->params[i].inmemory) {
3014                         s1 = md->params[i].regoff;
3015                         s2 = nmd->params[j].regoff;
3016
3017                         if (!nmd->params[j].inmemory) {
3018 #if !defined(__ARM_EABI__)
3019                                 SPLIT_OPEN(t, s2, REG_ITMP1);
3020 #endif
3021
3022                                 if (IS_2_WORD_TYPE(t))
3023                                         M_LNGMOVE(s1, s2);
3024                                 else
3025                                         M_INTMOVE(s1, s2);
3026
3027 #if !defined(__ARM_EABI__)
3028                                 SPLIT_STORE_AND_CLOSE(t, s2, 0);
3029 #endif
3030                         }
3031                         else {
3032                                 if (IS_2_WORD_TYPE(t))
3033                                         M_LST(s1, REG_SP, s2);
3034                                 else
3035                                         M_IST(s1, REG_SP, s2);
3036                         }
3037                 }
3038                 else {
3039                         s1 = md->params[i].regoff + cd->stackframesize;
3040                         s2 = nmd->params[j].regoff;
3041
3042                         if (IS_2_WORD_TYPE(t)) {
3043                                 M_LLD(REG_ITMP12_PACKED, REG_SP, s1);
3044                                 M_LST(REG_ITMP12_PACKED, REG_SP, s2);
3045                         }
3046                         else {
3047                                 M_ILD(REG_ITMP1, REG_SP, s1);
3048                                 M_IST(REG_ITMP1, REG_SP, s2);
3049                         }
3050                 }
3051         }
3052
3053         /* put class into second argument register */
3054
3055         if (m->flags & ACC_STATIC) {
3056                 disp = dseg_add_address(cd, m->class);
3057                 M_DSEG_LOAD(REG_A1, disp);
3058         }
3059
3060         /* put env into first argument register */
3061
3062         disp = dseg_add_address(cd, _Jv_env);
3063         M_DSEG_LOAD(REG_A0, disp);
3064
3065         /* do the native function call */
3066
3067         M_DSEG_BRANCH(funcdisp);
3068
3069         /* recompute pv */
3070         /* TODO: this is only needed because of the tracer ... do we
3071            really need it? */
3072
3073         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3074         M_RECOMPUTE_PV(s1);
3075
3076 #if !defined(__SOFTFP__)
3077         /* TODO: this is only a hack, since we use R0/R1 for float return! */
3078         /* this depends on gcc; it is independent from our ENABLE_SOFTFLOAT define */
3079         if (md->returntype.type != TYPE_VOID && IS_FLT_DBL_TYPE(md->returntype.type)) {
3080 #if 0 && !defined(NDEBUG)
3081                 dolog("NATIVESTUB that returns float or double (%s.%s)", m->class->name->text, m->name->text);
3082 #endif
3083                 /* we cannot use this macro, since it is not defined in ENABLE_SOFTFLOAT */
3084                 /* M_CAST_FLT_TO_INT_TYPED(md->returntype.type, REG_FRESULT, REG_RESULT_TYPED(md->returntype.type)); */
3085                 if (IS_2_WORD_TYPE(md->returntype.type)) {
3086                         DCD(0xed2d8102); /* stfd    f0, [sp, #-8]! */
3087                         M_LDRD_UPDATE(REG_RESULT_PACKED, REG_SP, 8);
3088                 } else {
3089                         DCD(0xed2d0101); /* stfs    f0, [sp, #-4]!*/
3090                         M_LDR_UPDATE(REG_RESULT, REG_SP, 4);
3091                 }
3092         }
3093 #endif
3094
3095 #if !defined(NDEBUG)
3096         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
3097                 emit_verbosecall_exit(jd);
3098 #endif
3099
3100         /* remove native stackframe info */
3101         /* TODO: improve this store/load */
3102
3103         M_STMFD(BITMASK_RESULT, REG_SP);
3104
3105         M_ADD_IMM(REG_A0, REG_SP, 2*4 + cd->stackframesize - SIZEOF_VOID_P);
3106         disp = dseg_add_functionptr(cd, codegen_finish_native_call);
3107         M_DSEG_BRANCH(disp);
3108         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3109         M_RECOMPUTE_PV(s1);
3110
3111         M_MOV(REG_ITMP1_XPTR, REG_RESULT);
3112         M_LDMFD(BITMASK_RESULT, REG_SP);
3113
3114         /* finish stub code, but do not yet return to caller */
3115
3116         M_ADD_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - 1);
3117         M_LDMFD(1<<REG_LR, REG_SP);
3118
3119         /* check for exception */
3120
3121         M_TST(REG_ITMP1_XPTR, REG_ITMP1_XPTR);
3122         M_MOVEQ(REG_LR, REG_PC);            /* if no exception, return to caller  */
3123
3124         /* handle exception here */
3125
3126         M_SUB_IMM(REG_ITMP2_XPC, REG_LR, 4);/* move fault address into xpc        */
3127
3128         disp = dseg_add_functionptr(cd, asm_handle_nat_exception);
3129         M_DSEG_LOAD(REG_ITMP3, disp);       /* load asm exception handler address */
3130         M_MOV(REG_PC, REG_ITMP3);           /* jump to asm exception handler      */
3131
3132         /* generate patcher stubs */
3133
3134         emit_patcher_traps(jd);
3135 }
3136
3137
3138 /* asm_debug *******************************************************************
3139
3140    Lazy debugger!
3141
3142 *******************************************************************************/
3143
3144 void asm_debug(int a1, int a2, int a3, int a4)
3145 {
3146         printf("===> i am going to exit after this debugging message!\n");
3147         printf("got asm_debug(%p, %p, %p, %p)\n",(void*)a1,(void*)a2,(void*)a3,(void*)a4);
3148         vm_abort("leave you now");
3149 }
3150
3151
3152 /*
3153  * These are local overrides for various environment variables in Emacs.
3154  * Please do not remove this and leave it at the end of the file, where
3155  * Emacs will automagically detect them.
3156  * ---------------------------------------------------------------------
3157  * Local variables:
3158  * mode: c
3159  * indent-tabs-mode: t
3160  * c-basic-offset: 4
3161  * tab-width: 4
3162  * End:
3163  * vim:noexpandtab:sw=4:ts=4:
3164  */