src/vm/jit/arm/codegen.c

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