src/vm/jit/arm/codegen.c

   1 /* src/vm/jit/arm/codegen.c - machine code generator for Arm
   2
   3    Copyright (C) 1996-2005, 2006, 2007 R. Grafl, A. Krall, C. Kruegel,
   4    C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
   5    E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
   6    J. Wenninger, Institut f. Computersprachen - TU Wien
   7
   8    This file is part of CACAO.
   9
  10    This program is free software; you can redistribute it and/or
  11    modify it under the terms of the GNU General Public License as
  12    published by the Free Software Foundation; either version 2, or (at
  13    your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful, but
  16    WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18    General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program; if not, write to the Free Software
  22    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  23    02110-1301, USA.
  24
  25    $Id: codegen.c 8321 2007-08-16 11:37:25Z michi $
  26
  27 */
  28
  29
  30 #include "config.h"
  31
  32 #include <assert.h>
  33 #include <stdio.h>
  34
  35 #include "vm/types.h"
  36
  37 #include "md-abi.h"
  38
  39 #include "vm/jit/arm/arch.h"
  40 #include "vm/jit/arm/codegen.h"
  41
  42 #include "mm/memory.h"
  43
  44 #include "native/localref.h"
  45 #include "native/native.h"
  46
  47 #include "threads/lock-common.h"
  48
  49 #include "vm/builtin.h"
  50 #include "vm/exceptions.h"
  51 #include "vm/global.h"
  52 #include "vm/vm.h"
  53
  54 #include "vm/jit/abi.h"
  55 #include "vm/jit/asmpart.h"
  56 #include "vm/jit/codegen-common.h"
  57 #include "vm/jit/dseg.h"
  58 #include "vm/jit/emit-common.h"
  59 #include "vm/jit/jit.h"
  60 #include "vm/jit/md.h"
  61 #include "vm/jit/methodheader.h"
  62 #include "vm/jit/parse.h"
  63 #include "vm/jit/patcher-common.h"
  64 #include "vm/jit/reg.h"
  65
  66 #if defined(ENABLE_LSRA)
  67 #include "vm/jit/allocator/lsra.h"
  68 #endif
  69
  70 #include "vmcore/loader.h"
  71 #include "vmcore/options.h"
  72
  73
  74 /* codegen_emit ****************************************************************
  75
  76    Generates machine code.
  77
  78 *******************************************************************************/
  79
  80 bool codegen_emit(jitdata *jd)
  81 {
  82         methodinfo         *m;
  83         codeinfo           *code;
  84         codegendata        *cd;
  85         registerdata       *rd;
  86         s4              i, t, len;
  87         s4              s1, s2, s3, d;
  88         s4              disp;
  89         varinfo        *var;
  90         basicblock     *bptr;
  91         instruction    *iptr;
  92         exception_entry *ex;
  93
  94         s4              spilledregs_num;
  95         s4              savedregs_num;
  96         u2              savedregs_bitmask;
  97         u2              currentline;
  98
  99         methodinfo         *lm;             /* local methodinfo for ICMD_INVOKE* */
 100         unresolved_method  *um;
 101         builtintable_entry *bte;
 102         methoddesc         *md;
 103         fieldinfo          *fi;
 104         unresolved_field   *uf;
 105         int                 fieldtype;
 106         int                 varindex;
 107
 108         /* get required compiler data */
 109
 110         m    = jd->m;
 111         code = jd->code;
 112         cd   = jd->cd;
 113         rd   = jd->rd;
 114
 115         /* prevent compiler warnings */
 116
 117         lm  = NULL;
 118         um  = NULL;
 119         bte = NULL;
 120
 121         fieldtype = -1;
 122
 123         /* space to save used callee saved registers */
 124
 125         savedregs_num = (jd->isleafmethod) ? 0 : 1;       /* space to save the LR */
 126         savedregs_num += (INT_SAV_CNT - rd->savintreguse);
 127         /*savedregs_num += (FLT_SAV_CNT - rd->savfltreguse);*/
 128         assert((FLT_SAV_CNT - rd->savfltreguse) == 0);
 129
 130         spilledregs_num = rd->memuse;
 131
 132 #if defined(ENABLE_THREADS)        /* space to save argument of monitor_enter */
 133         if (checksync && (m->flags & ACC_SYNCHRONIZED))
 134                 spilledregs_num++;
 135 #endif
 136
 137         cd->stackframesize = spilledregs_num * 8 + savedregs_num * 4;
 138
 139         /* XXX QUICK FIX: We shouldn't align the stack in Java code, but
 140            only in native stubs. */
 141         /* align stack to 8-byte */
 142
 143         cd->stackframesize = (cd->stackframesize + 4) & ~4;
 144
 145         /* SECTION: Method Header */
 146         /* create method header */
 147
 148         (void) dseg_add_unique_address(cd, code);              /* CodeinfoPointer */
 149         (void) dseg_add_unique_s4(cd, cd->stackframesize);     /* FrameSize       */
 150
 151 #if defined(ENABLE_THREADS)
 152         /* IsSync contains the offset relative to the stack pointer for the
 153            argument of monitor_exit used in the exception handler. Since the
 154            offset could be zero and give a wrong meaning of the flag it is
 155            offset by one.
 156         */
 157
 158         if (checksync && (m->flags & ACC_SYNCHRONIZED))
 159                 (void) dseg_add_unique_s4(cd, rd->memuse * 8 + 4);/* IsSync         */
 160         else
 161 #endif
 162                 (void) dseg_add_unique_s4(cd, 0);                  /* IsSync          */
 163
 164         (void) dseg_add_unique_s4(cd, jd->isleafmethod);       /* IsLeaf          */
 165         (void) dseg_add_unique_s4(cd, INT_SAV_CNT - rd->savintreguse); /* IntSave */
 166         (void) dseg_add_unique_s4(cd, FLT_SAV_CNT - rd->savfltreguse); /* FltSave */
 167         (void) dseg_addlinenumbertablesize(cd);
 168         (void) dseg_add_unique_s4(cd, jd->exceptiontablelength); /* ExTableSize   */
 169
 170         /* create exception table */
 171
 172         for (ex = jd->exceptiontable; ex != NULL; ex = ex->down) {
 173                 dseg_add_target(cd, ex->start);
 174                 dseg_add_target(cd, ex->end);
 175                 dseg_add_target(cd, ex->handler);
 176                 (void) dseg_add_unique_address(cd, ex->catchtype.any);
 177         }
 178
 179         /* save return address and used callee saved registers */
 180
 181         savedregs_bitmask = 0;
 182
 183         if (!jd->isleafmethod)
 184                 savedregs_bitmask = (1<<REG_LR);
 185
 186         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--)
 187                 savedregs_bitmask |= (1<<(rd->savintregs[i]));
 188
 189 #if !defined(NDEBUG)
 190         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
 191                 log_text("!!! CODEGEN: floating-point callee saved registers are not saved to stack (SEVERE! STACK IS MESSED UP!)");
 192                 /* TODO: floating-point */
 193         }
 194 #endif
 195
 196         if (savedregs_bitmask)
 197                 M_STMFD(savedregs_bitmask, REG_SP);
 198
 199         /* create additional stack frame for spilled variables (if necessary) */
 200
 201         if ((cd->stackframesize / 4 - savedregs_num) > 0)
 202                 M_SUB_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - savedregs_num);
 203
 204         /* take arguments out of register or stack frame */
 205
 206         md = m->parseddesc;
 207         for (i = 0, len = 0; i < md->paramcount; i++) {
 208                 s1 = md->params[i].regoff;
 209                 t = md->paramtypes[i].type;
 210
 211                 varindex = jd->local_map[len * 5 + t];
 212
 213                 len += (IS_2_WORD_TYPE(t)) ? 2 : 1;          /* 2 word type arguments */
 214
 215                 if (varindex == UNUSED)
 216                         continue;
 217
 218                 var = VAR(varindex);
 219
 220                 /* ATTENTION: we use interger registers for all arguments (even float) */
 221 #if !defined(ENABLE_SOFTFLOAT)
 222                 if (IS_INT_LNG_TYPE(t)) {
 223 #endif
 224                         if (!md->params[i].inmemory) {
 225                                 if (!(var->flags & INMEMORY)) {
 226                                         if (IS_2_WORD_TYPE(t))
 227                                                 M_LNGMOVE(s1, var->vv.regoff);
 228                                         else
 229                                                 M_INTMOVE(s1, var->vv.regoff);
 230                                 }
 231                                 else {
 232                                         if (IS_2_WORD_TYPE(t))
 233                                                 M_LST(s1, REG_SP, var->vv.regoff);
 234                                         else
 235                                                 M_IST(s1, REG_SP, var->vv.regoff);
 236                                 }
 237                         }
 238                         else {                                   /* stack arguments       */
 239                                 if (!(var->flags & INMEMORY)) {      /* stack arg -> register */
 240                                         if (IS_2_WORD_TYPE(t))
 241                                                 M_LLD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 242                                         else
 243                                                 M_ILD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 244                                 }
 245                                 else {                               /* stack arg -> spilled  */
 246                                         /* Reuse Memory Position on Caller Stack */
 247                                         var->vv.regoff = cd->stackframesize + s1;
 248                                 }
 249                         }
 250 #if !defined(ENABLE_SOFTFLOAT)
 251                 }
 252                 else {
 253                         if (!md->params[i].inmemory) {
 254                                 if (!(var->flags & INMEMORY)) {
 255                                         M_CAST_INT_TO_FLT_TYPED(t, s1, var->vv.regoff);
 256                                 }
 257                                 else {
 258                                         if (IS_2_WORD_TYPE(t))
 259                                                 M_LST(s1, REG_SP, var->vv.regoff);
 260                                         else
 261                                                 M_IST(s1, REG_SP, var->vv.regoff);
 262                                 }
 263                         }
 264                         else {
 265                                 if (!(var->flags & INMEMORY)) {
 266                                         if (IS_2_WORD_TYPE(t))
 267                                                 M_DLD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 268                                         else
 269                                                 M_FLD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 270                                 }
 271                                 else {
 272                                         /* Reuse Memory Position on Caller Stack */
 273                                         var->vv.regoff = cd->stackframesize + s1;
 274                                 }
 275                         }
 276                 }
 277 #endif /* !defined(ENABLE_SOFTFLOAT) */
 278         }
 279
 280 #if defined(ENABLE_THREADS)
 281         /* call monitorenter function */
 282
 283         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
 284                 /* stack offset for monitor argument */
 285
 286                 s1 = rd->memuse * 8;
 287
 288 # if !defined(NDEBUG)
 289                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 290                         M_STMFD(BITMASK_ARGS, REG_SP);
 291                         s1 += 4 * 4;
 292                 }
 293 # endif
 294
 295                 /* get the correct lock object */
 296
 297                 if (m->flags & ACC_STATIC) {
 298                         disp = dseg_add_address(cd, &m->class->object.header);
 299                         M_DSEG_LOAD(REG_A0, disp);
 300                 }
 301                 else {
 302                         emit_nullpointer_check_force(cd, iptr, REG_A0);
 303                 }
 304
 305                 M_STR(REG_A0, REG_SP, s1);
 306                 disp = dseg_add_functionptr(cd, LOCK_monitor_enter);
 307                 M_DSEG_BRANCH(disp);
 308                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
 309                 M_RECOMPUTE_PV(s1);
 310
 311 # if !defined(NDEBUG)
 312                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
 313                         M_LDMFD(BITMASK_ARGS, REG_SP);
 314 # endif
 315         }
 316 #endif
 317
 318 #if !defined(NDEBUG)
 319         /* call trace function */
 320
 321         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
 322                 emit_verbosecall_enter(jd);
 323 #endif
 324
 325         /* end of header generation */
 326
 327         /* create replacement points */
 328         REPLACEMENT_POINTS_INIT(cd, jd);
 329
 330         /* SECTION: ICMD Code Generation */
 331         /* for all basic blocks */
 332
 333         for (bptr = jd->basicblocks; bptr != NULL; bptr = bptr->next) {
 334
 335                 bptr->mpc = (s4) (cd->mcodeptr - cd->mcodebase);
 336
 337                 /* is this basic block reached? */
 338
 339                 if (bptr->flags < BBREACHED)
 340                         continue;
 341
 342                 /* branch resolving */
 343
 344                 codegen_resolve_branchrefs(cd, bptr);
 345
 346                 /* handle replacement points */
 347                 REPLACEMENT_POINT_BLOCK_START(cd, bptr);
 348
 349                 /* copy interface registers to their destination */
 350
 351                 len = bptr->indepth;
 352
 353                 MCODECHECK(64+len);
 354
 355 #if defined(ENABLE_LSRA)
 356                 if (opt_lsra) {
 357                 while (len) {
 358                         len--;
 359                         var = VAR(bptr->invars[len]);
 360                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 361                                 if (!(var->flags & INMEMORY))
 362                                         d= var->vv.regoff;
 363                                 else
 364                                         d=REG_ITMP1;
 365                                 M_INTMOVE(REG_ITMP1, d);
 366                                 emit_store(jd, NULL, var, d);
 367                         }
 368                 }
 369                 } else {
 370 #endif
 371                 while (len) {
 372                         len--;
 373                         var = VAR(bptr->invars[len]);
 374
 375                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 376                                 d = codegen_reg_of_var(0, var, REG_ITMP1);
 377                                 M_INTMOVE(REG_ITMP1, d);
 378                                 emit_store(jd, NULL, var, d);
 379                         }
 380                         else {
 381                                 assert((var->flags & INOUT));
 382                         }
 383                 }
 384 #if defined(ENABLE_LSRA)
 385                 }
 386 #endif
 387
 388                 /* for all instructions */
 389                 len = bptr->icount;
 390                 currentline = 0;
 391                 for (iptr = bptr->iinstr; len > 0; len--, iptr++) {
 392
 393                         /* add line number */
 394                         if (iptr->line != currentline) {
 395                                 dseg_addlinenumber(cd, iptr->line);
 396                                 currentline = iptr->line;
 397                         }
 398
 399                         MCODECHECK(64);   /* an instruction usually needs < 64 words      */
 400
 401                         /* the big switch */
 402                         switch (iptr->opc) {
 403                 case ICMD_NOP:        /* ... ==> ...                                  */
 404                         break;
 405
 406         /* constant operations ************************************************/
 407
 408                 case ICMD_ICONST:     /* ...  ==> ..., constant                       */
 409
 410                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 411                         ICONST(d, iptr->sx.val.i);
 412                         emit_store_dst(jd, iptr, d);
 413                         break;
 414
 415                 case ICMD_ACONST:     /* ... ==> ..., constant                        */
 416
 417                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 418                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
 419                                 disp = dseg_add_unique_address(cd, NULL);
 420
 421                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
 422                                                     iptr->sx.val.c.ref, disp);
 423
 424                                 if (opt_showdisassemble)
 425                                         M_NOP;
 426
 427                                 M_DSEG_LOAD(d, disp);
 428                         }
 429                         else {
 430                                 ICONST(d, (u4) iptr->sx.val.anyptr);
 431                         }
 432                         emit_store_dst(jd, iptr, d);
 433                         break;
 434
 435                 case ICMD_LCONST:     /* ...  ==> ..., constant                       */
 436
 437                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 438                         LCONST(d, iptr->sx.val.l);
 439                         emit_store_dst(jd, iptr, d);
 440                         break;
 441
 442                 case ICMD_FCONST:     /* ...  ==> ..., constant                       */
 443
 444 #if defined(ENABLE_SOFTFLOAT)
 445                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 446                         ICONST(d, iptr->sx.val.i);
 447                         emit_store_dst(jd, iptr, d);
 448 #else
 449                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 450                         FCONST(d, iptr->sx.val.f);
 451                         emit_store_dst(jd, iptr, d);
 452 #endif
 453                         break;
 454
 455                 case ICMD_DCONST:     /* ...  ==> ..., constant                       */
 456
 457 #if defined(ENABLE_SOFTFLOAT)
 458                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 459                         LCONST(d, iptr->sx.val.l);
 460                         emit_store_dst(jd, iptr, d);
 461 #else
 462                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 463                         DCONST(d, iptr->sx.val.d);
 464                         emit_store_dst(jd, iptr, d);
 465 #endif
 466                         break;
 467
 468
 469                 /* load/store/copy/move operations ************************************/
 470
 471                 case ICMD_ILOAD:      /* ...  ==> ..., content of local variable      */
 472                 case ICMD_ALOAD:      /* op1 = local variable                         */
 473                 case ICMD_FLOAD:
 474                 case ICMD_LLOAD:
 475                 case ICMD_DLOAD:
 476                 case ICMD_ISTORE:     /* ..., value  ==> ...                          */
 477                 case ICMD_FSTORE:
 478                 case ICMD_LSTORE:
 479                 case ICMD_DSTORE:
 480                 case ICMD_COPY:
 481                 case ICMD_MOVE:
 482
 483                         emit_copy(jd, iptr);
 484                         break;
 485
 486                 case ICMD_ASTORE:
 487                         if (!(iptr->flags.bits & INS_FLAG_RETADDR))
 488                                 emit_copy(jd, iptr);
 489                         break;
 490
 491                 /* pop operations *****************************************************/
 492
 493                 /* attention: double and longs are only one entry in CACAO ICMDs      */
 494
 495                 case ICMD_POP:        /* ..., value  ==> ...                          */
 496                 case ICMD_POP2:       /* ..., value, value  ==> ...                   */
 497
 498                         break;
 499
 500
 501                 /* integer operations *************************************************/
 502
 503                 case ICMD_INT2BYTE:   /* ..., value  ==> ..., value                   */
 504
 505                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 506                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 507                         M_MOV(d, REG_LSL(s1, 24));
 508                         M_MOV(d, REG_ASR(d, 24));
 509                         emit_store_dst(jd, iptr, d);
 510                         break;
 511
 512                 case ICMD_INT2CHAR:   /* ..., value  ==> ..., value                   */
 513
 514                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 515                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 516                         M_MOV(d, REG_LSL(s1, 16));
 517                         M_MOV(d, REG_LSR(d, 16)); /* ATTENTION: char is unsigned */
 518                         emit_store_dst(jd, iptr, d);
 519                         break;
 520
 521                 case ICMD_INT2SHORT:  /* ..., value  ==> ..., value                   */
 522
 523                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 524                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 525                         M_MOV(d, REG_LSL(s1, 16));
 526                         M_MOV(d, REG_ASR(d, 16));
 527                         emit_store_dst(jd, iptr, d);
 528                         break;
 529
 530                 case ICMD_I2L:        /* ..., value  ==> ..., value                   */
 531
 532                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 533                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 534                         M_INTMOVE(s1, GET_LOW_REG(d));
 535                         M_MOV(GET_HIGH_REG(d), REG_ASR(s1, 31));
 536                         emit_store_dst(jd, iptr, d);
 537                         break;
 538
 539                 case ICMD_L2I:        /* ..., value  ==> ..., value                   */
 540
 541                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 542                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 543                         M_INTMOVE(s1, d);
 544                         emit_store_dst(jd, iptr, d);
 545                         break;
 546
 547                 case ICMD_INEG:       /* ..., value  ==> ..., - value                 */
 548
 549                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 550                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 551                         M_RSB_IMM(d, s1, 0);
 552                         emit_store_dst(jd, iptr, d);
 553                         break;
 554
 555                 case ICMD_LNEG:       /* ..., value  ==> ..., - value                 */
 556
 557                         s1 = emit_load_s1(jd, iptr, REG_ITMP12_PACKED);
 558                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 559                         M_RSB_IMMS(GET_LOW_REG(d), GET_LOW_REG(s1), 0);
 560                         M_RSC_IMM(GET_HIGH_REG(d), GET_HIGH_REG(s1), 0);
 561                         emit_store_dst(jd, iptr, d);
 562                         break;
 563
 564                 case ICMD_IADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 565
 566                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 567                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 568                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 569                         M_ADD(d, s1, s2);
 570                         emit_store_dst(jd, iptr, d);
 571                         break;
 572
 573                 case ICMD_LADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 574
 575                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 576                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 577                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 578                         M_ADD_S(GET_LOW_REG(d), s1, s2);
 579                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 580                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 581                         M_ADC(GET_HIGH_REG(d), s1, s2);
 582                         emit_store_dst(jd, iptr, d);
 583                         break;
 584
 585                 case ICMD_IADDCONST:
 586                 case ICMD_IINC:
 587
 588                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 589                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 590
 591                         if (IS_IMM(iptr->sx.val.i)) {
 592                                 M_ADD_IMM(d, s1, iptr->sx.val.i);
 593                         } else if (IS_IMM(-iptr->sx.val.i)) {
 594                                 M_SUB_IMM(d, s1, (-iptr->sx.val.i));
 595                         } else {
 596                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 597                                 M_ADD(d, s1, REG_ITMP3);
 598                         }
 599
 600                         emit_store_dst(jd, iptr, d);
 601                         break;
 602
 603                 case ICMD_LADDCONST:  /* ..., value  ==> ..., value + constant        */
 604                                       /* sx.val.l = constant                          */
 605
 606                         s3 = iptr->sx.val.l & 0xffffffff;
 607                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 608                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 609                         if (IS_IMM(s3))
 610                                 M_ADD_IMMS(GET_LOW_REG(d), s1, s3);
 611                         else {
 612                                 ICONST(REG_ITMP3, s3);
 613                                 M_ADD_S(GET_LOW_REG(d), s1, REG_ITMP3);
 614                         }
 615                         s3 = iptr->sx.val.l >> 32;
 616                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP2);
 617                         if (IS_IMM(s3))
 618                                 M_ADC_IMM(GET_HIGH_REG(d), s1, s3);
 619                         else {
 620                                 ICONST(REG_ITMP3, s3);
 621                                 M_ADC(GET_HIGH_REG(d), s1, REG_ITMP3);
 622                         }
 623                         emit_store_dst(jd, iptr, d);
 624                         break;
 625
 626                 case ICMD_ISUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 627
 628                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 629                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 630                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 631                         M_SUB(d, s1, s2);
 632                         emit_store_dst(jd, iptr, d);
 633                         break;
 634
 635                 case ICMD_LSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 636
 637                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 638                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 639                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 640                         M_SUB_S(GET_LOW_REG(d), s1, s2);
 641                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 642                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 643                         M_SBC(GET_HIGH_REG(d), s1, s2);
 644                         emit_store_dst(jd, iptr, d);
 645                         break;
 646
 647                 case ICMD_ISUBCONST:  /* ..., value  ==> ..., value + constant        */
 648                                       /* sx.val.i = constant                          */
 649
 650                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 651                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 652                         if (IS_IMM(iptr->sx.val.i))
 653                                 M_SUB_IMM(d, s1, iptr->sx.val.i);
 654                         else {
 655                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 656                                 M_SUB(d, s1, REG_ITMP3);
 657                         }
 658                         emit_store_dst(jd, iptr, d);
 659                         break;
 660
 661                 case ICMD_LSUBCONST:  /* ..., value  ==> ..., value - constant        */
 662                                       /* sx.val.l = constant                          */
 663
 664                         s3 = iptr->sx.val.l & 0xffffffff;
 665                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 666                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 667                         if (IS_IMM(s3))
 668                                 M_SUB_IMMS(GET_LOW_REG(d), s1, s3);
 669                         else {
 670                                 ICONST(REG_ITMP3, s3);
 671                                 M_SUB_S(GET_LOW_REG(d), s1, REG_ITMP3);
 672                         }
 673                         s3 = iptr->sx.val.l >> 32;
 674                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP2);
 675                         if (IS_IMM(s3))
 676                                 M_SBC_IMM(GET_HIGH_REG(d), s1, s3);
 677                         else {
 678                                 ICONST(REG_ITMP3, s3);
 679                                 M_SBC(GET_HIGH_REG(d), s1, REG_ITMP3);
 680                         }
 681                         emit_store_dst(jd, iptr, d);
 682                         break;
 683
 684                 case ICMD_IMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 685
 686                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 687                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 688                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 689                         M_MUL(d, s1, s2);
 690                         emit_store_dst(jd, iptr, d);
 691                         break;
 692
 693                 case ICMD_IDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 694                 case ICMD_IREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 695
 696                         s1 = emit_load_s1(jd, iptr, REG_A0);
 697                         s2 = emit_load_s2(jd, iptr, REG_A1);
 698                         emit_arithmetic_check(cd, iptr, s2);
 699
 700                         /* move arguments into argument registers */
 701                         M_INTMOVE(s1, REG_A0);
 702                         M_INTMOVE(s2, REG_A1);
 703
 704                         /* call builtin function */
 705                         bte = iptr->sx.s23.s3.bte;
 706                         disp = dseg_add_functionptr(cd, bte->fp);
 707                         M_DSEG_BRANCH(disp);
 708
 709                         /* recompute pv */
 710                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
 711                         M_RECOMPUTE_PV(s1);
 712
 713                         /* move result into destination register */
 714                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
 715                         M_INTMOVE(REG_RESULT, d);
 716                         emit_store_dst(jd, iptr, d);
 717                         break;
 718
 719                 case ICMD_LDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 720                 case ICMD_LREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 721
 722                         /* move arguments into argument registers */
 723
 724                         s1 = emit_load_s1(jd, iptr, REG_A0_A1_PACKED);
 725                         s2 = emit_load_s2(jd, iptr, REG_A2_A3_PACKED);
 726                         /* XXX TODO: only do this if arithmetic check is really done! */
 727                         M_ORR(GET_HIGH_REG(s2), GET_LOW_REG(s2), REG_ITMP3);
 728                         emit_arithmetic_check(cd, iptr, REG_ITMP3);
 729
 730                         M_LNGMOVE(s1, REG_A0_A1_PACKED);
 731                         M_LNGMOVE(s2, REG_A2_A3_PACKED);
 732
 733                         /* call builtin function */
 734                         bte = iptr->sx.s23.s3.bte;
 735                         disp = dseg_add_functionptr(cd, bte->fp);
 736                         M_DSEG_BRANCH(disp);
 737
 738                         /* recompute pv */
 739                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
 740                         M_RECOMPUTE_PV(s1);
 741
 742                         /* move result into destination register */
 743                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
 744                         M_LNGMOVE(REG_RESULT_PACKED, d);
 745                         emit_store_dst(jd, iptr, d);
 746                         break;
 747
 748                 case ICMD_IMULPOW2:   /* ..., value  ==> ..., value * (2 ^ constant)  */
 749                                       /* sx.val.i = constant                          */
 750
 751                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 752                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 753                         M_MOV(d, REG_LSL(s1, iptr->sx.val.i));
 754                         emit_store_dst(jd, iptr, d);
 755                         break;
 756
 757                 case ICMD_IDIVPOW2:   /* ..., value  ==> ..., value / (2 ^ constant)  */
 758                                       /* sx.val.i = constant                          */
 759
 760                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 761                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 762                         /* this rounds towards 0 as java likes it */
 763                         M_MOV(REG_ITMP3, REG_ASR(s1, 31));
 764                         M_ADD(REG_ITMP3, s1, REG_LSR(REG_ITMP3, 32 - iptr->sx.val.i));
 765                         M_MOV(d, REG_ASR(REG_ITMP3, iptr->sx.val.i));
 766                         /* this rounds towards nearest, not java style */
 767                         /*M_MOV_S(d, REG_ASR(s1, iptr->sx.val.i));
 768                         M_ADCMI_IMM(d, d, 0);*/
 769                         emit_store_dst(jd, iptr, d);
 770                         break;
 771
 772                 case ICMD_IREMPOW2:   /* ..., value  ==> ..., value % constant        */
 773                                       /* sx.val.i = constant [ (2 ^ x) - 1 ]          */
 774
 775                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 776                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 777                         M_MOV_S(REG_ITMP1, s1);
 778                         M_RSBMI_IMM(REG_ITMP1, REG_ITMP1, 0);
 779                         if (IS_IMM(iptr->sx.val.i))
 780                                 M_AND_IMM(REG_ITMP1, iptr->sx.val.i, d);
 781                         else {
 782                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 783                                 M_AND(REG_ITMP1, REG_ITMP3, d);
 784                         }
 785                         M_RSBMI_IMM(d, d, 0);
 786                         emit_store_dst(jd, iptr, d);
 787                         break;
 788
 789                 case ICMD_ISHL:       /* ..., val1, val2  ==> ..., val1 << val2       */
 790
 791                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 792                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 793                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 794                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 795                         M_MOV(d, REG_LSL_REG(s1, REG_ITMP2));
 796                         emit_store_dst(jd, iptr, d);
 797                         break;
 798
 799                 case ICMD_ISHR:       /* ..., val1, val2  ==> ..., val1 >> val2       */
 800
 801                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 802                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 803                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 804                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 805                         M_MOV(d, REG_ASR_REG(s1, REG_ITMP2));
 806                         emit_store_dst(jd, iptr, d);
 807                         break;
 808
 809                 case ICMD_IUSHR:      /* ..., val1, val2  ==> ..., val1 >>> val2      */
 810
 811                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 812                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 813                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 814                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 815                         M_MOV(d, REG_LSR_REG(s1, REG_ITMP2));
 816                         emit_store_dst(jd, iptr, d);
 817                         break;
 818
 819                 case ICMD_ISHLCONST:  /* ..., value  ==> ..., value << constant       */
 820                                       /* sx.val.i = constant                          */
 821
 822                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 823                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 824                         M_MOV(d, REG_LSL(s1, iptr->sx.val.i & 0x1f));
 825                         emit_store_dst(jd, iptr, d);
 826                         break;
 827
 828                 case ICMD_ISHRCONST:  /* ..., value  ==> ..., value >> constant       */
 829                                       /* sx.val.i = constant                          */
 830
 831                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 832                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 833                         /* we need to check for zero here because arm interprets it as SHR by 32 */
 834                         if ((iptr->sx.val.i & 0x1f) == 0) {
 835                                 M_INTMOVE(s1, d);
 836                         } else {
 837                                 M_MOV(d, REG_ASR(s1, iptr->sx.val.i & 0x1f));
 838                         }
 839                         emit_store_dst(jd, iptr, d);
 840                         break;
 841
 842                 case ICMD_IUSHRCONST: /* ..., value  ==> ..., value >>> constant      */
 843                                       /* sx.val.i = constant                          */
 844
 845                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 846                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 847                         /* we need to check for zero here because arm interprets it as SHR by 32 */
 848                         if ((iptr->sx.val.i & 0x1f) == 0)
 849                                 M_INTMOVE(s1, d);
 850                         else
 851                                 M_MOV(d, REG_LSR(s1, iptr->sx.val.i & 0x1f));
 852                         emit_store_dst(jd, iptr, d);
 853                         break;
 854
 855                 case ICMD_IAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 856
 857                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 858                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 859                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 860                         M_AND(s1, s2, d);
 861                         emit_store_dst(jd, iptr, d);
 862                         break;
 863
 864                 case ICMD_LAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 865
 866                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 867                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 868                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 869                         M_AND(s1, s2, GET_LOW_REG(d));
 870                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 871                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 872                         M_AND(s1, s2, GET_HIGH_REG(d));
 873                         emit_store_dst(jd, iptr, d);
 874                         break;
 875
 876                 case ICMD_IOR:        /* ..., val1, val2  ==> ..., val1 | val2        */
 877
 878                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 879                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 880                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 881                         M_ORR(s1, s2, d);
 882                         emit_store_dst(jd, iptr, d);
 883                         break;
 884
 885                 case ICMD_LOR:       /* ..., val1, val2  ==> ..., val1 | val2        */
 886
 887                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 888                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 889                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 890                         M_ORR(s1, s2, GET_LOW_REG(d));
 891                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 892                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 893                         M_ORR(s1, s2, GET_HIGH_REG(d));
 894                         emit_store_dst(jd, iptr, d);
 895                         break;
 896
 897                 case ICMD_IXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
 898
 899                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 900                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 901                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 902                         M_EOR(s1, s2, d);
 903                         emit_store_dst(jd, iptr, d);
 904                         break;
 905
 906                 case ICMD_LXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
 907
 908                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 909                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 910                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 911                         M_EOR(s1, s2, GET_LOW_REG(d));
 912                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 913                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 914                         M_EOR(s1, s2, GET_HIGH_REG(d));
 915                         emit_store_dst(jd, iptr, d);
 916                         break;
 917
 918
 919         /* floating operations ************************************************/
 920
 921 #if !defined(ENABLE_SOFTFLOAT)
 922
 923                 case ICMD_FNEG:       /* ..., value  ==> ..., - value                 */
 924
 925                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 926                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 927                         M_MNFS(d, s1);
 928                         emit_store_dst(jd, iptr, d);
 929                         break;
 930
 931                 case ICMD_FADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 932
 933                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 934                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 935                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 936                         M_ADFS(d, s1, s2);
 937                         emit_store_dst(jd, iptr, d);
 938                         break;
 939
 940                 case ICMD_FSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 941
 942                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 943                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 944                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 945                         M_SUFS(d, s1, s2);
 946                         emit_store_dst(jd, iptr, d);
 947                         break;
 948
 949                 case ICMD_FMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 950
 951                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 952                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 953                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 954                         M_MUFS(d, s1, s2);
 955                         emit_store_dst(jd, iptr, d);
 956                         break;
 957
 958                 case ICMD_FDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 959                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 960                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 961                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 962                         M_DVFS(d, s1, s2);
 963                         emit_store_dst(jd, iptr, d);
 964                         break;
 965
 966                 /* ATTENTION: Jave does not want IEEE behaviour in FREM, do
 967                    not use this */
 968
 969                 case ICMD_FREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 970
 971                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 972                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 973                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 974                         M_RMFS(d, s1, s2);
 975                         emit_store_dst(jd, iptr, d);
 976                         break;
 977
 978                 case ICMD_DNEG:       /* ..., value  ==> ..., - value                 */
 979
 980                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 981                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 982                         M_MNFD(d, s1);
 983                         emit_store_dst(jd, iptr, d);
 984                         break;
 985
 986                 case ICMD_DADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 987
 988                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 989                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 990                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 991                         M_ADFD(d, s1, s2);
 992                         emit_store_dst(jd, iptr, d);
 993                         break;
 994
 995                 case ICMD_DSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 996
 997                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 998                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 999                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1000                         M_SUFD(d, s1, s2);
1001                         emit_store_dst(jd, iptr, d);
1002                         break;
1003
1004                 case ICMD_DMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1005
1006                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1007                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1008                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1009                         M_MUFD(d, s1, s2);
1010                         emit_store_dst(jd, iptr, d);
1011                         break;
1012
1013                 case ICMD_DDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1014
1015                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1016                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1017                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1018                         M_DVFD(d, s1, s2);
1019                         emit_store_dst(jd, iptr, d);
1020                         break;
1021
1022                 /* ATTENTION: Jave does not want IEEE behaviour in DREM, do
1023                    not use this */
1024
1025                 case ICMD_DREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
1026
1027                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1028                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1029                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1030                         M_RMFD(d, s1, s2);
1031                         emit_store_dst(jd, iptr, d);
1032                         break;
1033
1034                 case ICMD_I2F:       /* ..., value  ==> ..., (float) value            */
1035
1036                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1037                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1038                         M_FLTS(d, s1);
1039                         emit_store_dst(jd, iptr, d);
1040                         break;
1041
1042                 case ICMD_I2D:       /* ..., value  ==> ..., (double) value           */
1043
1044                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1045                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1046                         M_FLTD(d, s1);
1047                         emit_store_dst(jd, iptr, d);
1048                         break;
1049
1050                 case ICMD_F2I:       /* ..., value  ==> ..., (int) value              */
1051
1052                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1053                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1054                         /* this uses round towards zero, as Java likes it */
1055                         M_FIX(d, s1);
1056                         /* this checks for NaN; to return zero as Java likes it */
1057                         M_CMF(s1, 0x8);
1058                         M_MOVVS_IMM(0, d);
1059                         emit_store_dst(jd, iptr, d);
1060                         break;
1061
1062                 case ICMD_D2I:       /* ..., value  ==> ..., (int) value              */
1063
1064                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1065                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1066                         /* this uses round towards zero, as Java likes it */
1067                         M_FIX(d, s1);
1068                         /* this checks for NaN; to return zero as Java likes it */
1069                         M_CMF(s1, 0x8);
1070                         M_MOVVS_IMM(0, d);
1071                         emit_store_dst(jd, iptr, d);
1072                         break;
1073
1074                 case ICMD_D2F:       /* ..., value  ==> ..., (float) value            */
1075
1076                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1077                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1078                         M_MVFS(d,s1);
1079                         emit_store_dst(jd, iptr, d);
1080                         break;
1081
1082                 case ICMD_F2D:       /* ..., value  ==> ..., (double) value           */
1083
1084                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1085                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1086                         M_MVFD(d,s1);
1087                         emit_store_dst(jd, iptr, d);
1088                         break;
1089
1090                 case ICMD_FCMPG:      /* ..., val1, val2  ==> ..., val1 fcmpg val2    */
1091
1092                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1093                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1094                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1095                         M_CMF(s2, s1);
1096                         M_MOV_IMM(d, 0);
1097                         M_SUBGT_IMM(d, d, 1);
1098                         M_ADDLT_IMM(d, d, 1);
1099                         emit_store_dst(jd, iptr, d);
1100                         break;
1101
1102                 case ICMD_DCMPG:      /* ..., val1, val2  ==> ..., val1 dcmpg val2    */
1103
1104                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1105                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1106                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1107                         M_CMF(s2, s1);
1108                         M_MOV_IMM(d, 0);
1109                         M_SUBGT_IMM(d, d, 1);
1110                         M_ADDLT_IMM(d, d, 1);
1111                         emit_store_dst(jd, iptr, d);
1112                         break;
1113
1114                 case ICMD_FCMPL:      /* ..., val1, val2  ==> ..., val1 fcmpl val2    */
1115
1116                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1117                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1118                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1119                         M_CMF(s1, s2);
1120                         M_MOV_IMM(d, 0);
1121                         M_SUBLT_IMM(d, d, 1);
1122                         M_ADDGT_IMM(d, d, 1);
1123                         emit_store_dst(jd, iptr, d);
1124                         break;
1125
1126                 case ICMD_DCMPL:      /* ..., val1, val2  ==> ..., val1 dcmpl val2    */
1127
1128                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1129                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1130                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1131                         M_CMF(s1, s2);
1132                         M_MOV_IMM(d, 0);
1133                         M_SUBLT_IMM(d, d, 1);
1134                         M_ADDGT_IMM(d, d, 1);
1135                         emit_store_dst(jd, iptr, d);
1136                         break;
1137
1138 #endif /* !defined(ENABLE_SOFTFLOAT) */
1139
1140
1141                 /* memory operations **************************************************/
1142
1143                 case ICMD_ARRAYLENGTH: /* ..., arrayref  ==> ..., length              */
1144
1145                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1146                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1147                         /* implicit null-pointer check */
1148                         M_ILD_INTERN(d, s1, OFFSET(java_array_t, size));
1149                         emit_store_dst(jd, iptr, d);
1150                         break;
1151
1152                 case ICMD_BALOAD:     /* ..., arrayref, index  ==> ..., value         */
1153
1154                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1155                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1156                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1157                         /* implicit null-pointer check */
1158                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1159                         M_ADD(REG_ITMP1, s1, s2); /* REG_ITMP1 = s1 + 1 * s2 */
1160                         M_LDRSB(d, REG_ITMP1, OFFSET(java_bytearray_t, data[0]));
1161                         emit_store_dst(jd, iptr, d);
1162                         break;
1163
1164                 case ICMD_CALOAD:     /* ..., arrayref, index  ==> ..., value         */
1165
1166                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1167                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1168                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1169                         /* implicit null-pointer check */
1170                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1171                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1172                         M_LDRH(d, REG_ITMP1, OFFSET(java_chararray_t, data[0]));
1173                         emit_store_dst(jd, iptr, d);
1174                         break;
1175
1176                 case ICMD_SALOAD:     /* ..., arrayref, index  ==> ..., value         */
1177
1178                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1179                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1180                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1181                         /* implicit null-pointer check */
1182                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1183                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1184                         M_LDRSH(d, REG_ITMP1, OFFSET(java_shortarray_t, data[0]));
1185                         emit_store_dst(jd, iptr, d);
1186                         break;
1187
1188                 case ICMD_IALOAD:     /* ..., arrayref, index  ==> ..., value         */
1189
1190                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1191                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1192                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1193                         /* implicit null-pointer check */
1194                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1195                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1196                         M_ILD_INTERN(d, REG_ITMP1, OFFSET(java_intarray_t, data[0]));
1197                         emit_store_dst(jd, iptr, d);
1198                         break;
1199
1200                 case ICMD_LALOAD:     /* ..., arrayref, index  ==> ..., value         */
1201
1202                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1203                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1204                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1205                         /* implicit null-pointer check */
1206                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1207                         M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1208                         M_LLD_INTERN(d, REG_ITMP3, OFFSET(java_longarray_t, data[0]));
1209                         emit_store_dst(jd, iptr, d);
1210                         break;
1211
1212                 case ICMD_FALOAD:     /* ..., arrayref, index  ==> ..., value         */
1213
1214                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1215                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1216                         /* implicit null-pointer check */
1217                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1218                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1219 #if !defined(ENABLE_SOFTFLOAT)
1220                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1221                         M_FLD_INTERN(d, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1222 #else
1223                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1224                         M_ILD_INTERN(d, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1225 #endif
1226                         emit_store_dst(jd, iptr, d);
1227                         break;
1228
1229                 case ICMD_DALOAD:     /* ..., arrayref, index  ==> ..., value         */
1230
1231                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1232                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1233                         /* implicit null-pointer check */
1234                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1235                         M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1236 #if !defined(ENABLE_SOFTFLOAT)
1237                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1238                         M_DLD_INTERN(d, REG_ITMP3, OFFSET(java_doublearray_t, data[0]));
1239 #else
1240                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1241                         M_LLD_INTERN(d, REG_ITMP3, OFFSET(java_doublearray_t, data[0]));
1242 #endif
1243                         emit_store_dst(jd, iptr, d);
1244                         break;
1245
1246                 case ICMD_AALOAD:     /* ..., arrayref, index  ==> ..., value         */
1247
1248                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1249                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1250                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1251                         /* implicit null-pointer check */
1252                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1253                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1254                         M_LDR_INTERN(d, REG_ITMP1, OFFSET(java_objectarray_t, data[0]));
1255                         emit_store_dst(jd, iptr, d);
1256                         break;
1257
1258                 case ICMD_BASTORE:    /* ..., arrayref, index, value  ==> ...         */
1259
1260                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1261                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1262                         /* implicit null-pointer check */
1263                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1264                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1265                         M_ADD(REG_ITMP1, s1, s2); /* REG_ITMP1 = s1 + 1 * s2 */
1266                         M_STRB(s3, REG_ITMP1, OFFSET(java_bytearray_t, data[0]));
1267                         break;
1268
1269                 case ICMD_CASTORE:    /* ..., arrayref, index, value  ==> ...         */
1270
1271                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1272                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1273                         /* implicit null-pointer check */
1274                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1275                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1276                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1277                         M_STRH(s3, REG_ITMP1, OFFSET(java_chararray_t, data[0]));
1278                         break;
1279
1280                 case ICMD_SASTORE:    /* ..., arrayref, index, value  ==> ...         */
1281
1282                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1283                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1284                         /* implicit null-pointer check */
1285                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1286                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1287                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1288                         M_STRH(s3, REG_ITMP1, OFFSET(java_shortarray_t, data[0]));
1289                         break;
1290
1291                 case ICMD_IASTORE:    /* ..., arrayref, index, value  ==> ...         */
1292
1293                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1294                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1295                         /* implicit null-pointer check */
1296                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1297                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1298                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1299                         M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_intarray_t, data[0]));
1300                         break;
1301
1302                 case ICMD_LASTORE:    /* ..., arrayref, index, value  ==> ...         */
1303
1304                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1305                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1306                         /* implicit null-pointer check */
1307                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1308                         M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1309                         s3 = emit_load_s3(jd, iptr, REG_ITMP12_PACKED);
1310                         M_LST_INTERN(s3, REG_ITMP3, OFFSET(java_longarray_t, data[0]));
1311                         break;
1312
1313                 case ICMD_FASTORE:    /* ..., arrayref, index, value  ==> ...         */
1314
1315                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1316                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1317                         /* implicit null-pointer check */
1318                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1319                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1320 #if !defined(ENABLE_SOFTFLOAT)
1321                         s3 = emit_load_s3(jd, iptr, REG_FTMP1);
1322                         M_FST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1323 #else
1324                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1325                         M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1326 #endif
1327                         break;
1328
1329                 case ICMD_DASTORE:    /* ..., arrayref, index, value  ==> ...         */
1330
1331                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1332                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1333                         /* implicit null-pointer check */
1334                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1335                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 3)); /* REG_ITMP1 = s1 + 8 * s2 */
1336 #if !defined(ENABLE_SOFTFLOAT)
1337                         s3 = emit_load_s3(jd, iptr, REG_FTMP1);
1338                         M_DST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray_t, data[0]));
1339 #else
1340                         s3 = emit_load_s3(jd, iptr, REG_ITMP23_PACKED);
1341                         M_LST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray_t, data[0]));
1342 #endif
1343                         break;
1344
1345                 case ICMD_AASTORE:    /* ..., arrayref, index, value  ==> ...         */
1346
1347                         s1 = emit_load_s1(jd, iptr, REG_A0);
1348                         s2 = emit_load_s2(jd, iptr, REG_ITMP1);
1349                         s3 = emit_load_s3(jd, iptr, REG_A1);
1350
1351                         /* implicit null-pointer check */
1352                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1353
1354                         /* move arguments to argument registers */
1355                         M_INTMOVE(s1, REG_A0);
1356                         M_INTMOVE(s3, REG_A1);
1357
1358                         /* call builtin function */
1359                         disp = dseg_add_functionptr(cd, BUILTIN_canstore);
1360                         M_DSEG_BRANCH(disp);
1361
1362                         /* recompute pv */
1363                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
1364                         M_RECOMPUTE_PV(s1);
1365
1366                         /* check resturn value of builtin */
1367                         emit_exception_check(cd, iptr);
1368
1369                         /* finally store address into array */
1370                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1371                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1372                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1373                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1374                         M_STR_INTERN(s3, REG_ITMP1, OFFSET(java_objectarray_t, data[0]));
1375                         break;
1376
1377                 case ICMD_GETSTATIC:  /* ...  ==> ..., value                          */
1378
1379                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1380                                 uf        = iptr->sx.s23.s3.uf;
1381                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1382                                 disp      = dseg_add_unique_address(cd, NULL);
1383
1384                                 patcher_add_patch_ref(jd, PATCHER_get_putstatic, uf, disp);
1385
1386                                 if (opt_showdisassemble)
1387                                         M_NOP;
1388                         }
1389                         else {
1390                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1391                                 fieldtype = fi->type;
1392                                 disp      = dseg_add_address(cd, fi->value);
1393
1394                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1395                                         patcher_add_patch_ref(jd, PATCHER_initialize_class,
1396                                                             fi->class, 0);
1397
1398                                         if (opt_showdisassemble)
1399                                                 M_NOP;
1400                                 }
1401                         }
1402
1403                         M_DSEG_LOAD(REG_ITMP3, disp);
1404                         switch (fieldtype) {
1405                         case TYPE_INT:
1406 #if defined(ENABLE_SOFTFLOAT)
1407                         case TYPE_FLT:
1408 #endif
1409                         case TYPE_ADR:
1410                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1411                                 M_ILD_INTERN(d, REG_ITMP3, 0);
1412                                 break;
1413                         case TYPE_LNG:
1414 #if defined(ENABLE_SOFTFLOAT)
1415                         case TYPE_DBL:
1416 #endif
1417                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1418                                 M_LLD_INTERN(d, REG_ITMP3, 0);
1419                                 break;
1420 #if !defined(ENABLE_SOFTFLOAT)
1421                         case TYPE_FLT:
1422                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1423                                 M_FLD_INTERN(d, REG_ITMP3, 0);
1424                                 break;
1425                         case TYPE_DBL:
1426                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1427                                 M_DLD_INTERN(d, REG_ITMP3, 0);
1428                                 break;
1429 #endif
1430                         default:
1431                                 assert(0);
1432                         }
1433                         emit_store_dst(jd, iptr, d);
1434                         break;
1435
1436                 case ICMD_PUTSTATIC:  /* ..., value  ==> ...                          */
1437
1438                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1439                                 uf        = iptr->sx.s23.s3.uf;
1440                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1441                                 disp      = dseg_add_unique_address(cd, NULL);
1442
1443                                 patcher_add_patch_ref(jd, PATCHER_get_putstatic, uf, disp);
1444
1445                                 if (opt_showdisassemble)
1446                                         M_NOP;
1447                         }
1448                         else {
1449                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1450                                 fieldtype = fi->type;
1451                                 disp      = dseg_add_address(cd, fi->value);
1452
1453                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1454                                         patcher_add_patch_ref(jd, PATCHER_initialize_class,
1455                                                             fi->class, 0);
1456
1457                                         if (opt_showdisassemble)
1458                                                 M_NOP;
1459                                 }
1460                         }
1461
1462                         M_DSEG_LOAD(REG_ITMP3, disp);
1463                         switch (fieldtype) {
1464                         case TYPE_INT:
1465 #if defined(ENABLE_SOFTFLOAT)
1466                         case TYPE_FLT:
1467 #endif
1468                         case TYPE_ADR:
1469                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1470                                 M_IST_INTERN(s1, REG_ITMP3, 0);
1471                                 break;
1472                         case TYPE_LNG:
1473 #if defined(ENABLE_SOFTFLOAT)
1474                         case TYPE_DBL:
1475 #endif
1476                                 s1 = emit_load_s1(jd, iptr, REG_ITMP12_PACKED);
1477                                 M_LST_INTERN(s1, REG_ITMP3, 0);
1478                                 break;
1479 #if !defined(ENABLE_SOFTFLOAT)
1480                         case TYPE_FLT:
1481                                 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1482                                 M_FST_INTERN(s1, REG_ITMP3, 0);
1483                                 break;
1484                         case TYPE_DBL:
1485                                 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1486                                 M_DST_INTERN(s1, REG_ITMP3, 0);
1487                                 break;
1488 #endif
1489                         default:
1490                                 assert(0);
1491                         }
1492                         break;
1493
1494                 case ICMD_GETFIELD:   /* ..., objectref, value  ==> ...               */
1495
1496                         s1 = emit_load_s1(jd, iptr, REG_ITMP3);
1497                         emit_nullpointer_check(cd, iptr, s1);
1498
1499
1500                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1501                                 uf        = iptr->sx.s23.s3.uf;
1502                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1503                                 disp      = 0;
1504                         }
1505                         else {
1506                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1507                                 fieldtype = fi->type;
1508                                 disp      = fi->offset;
1509                         }
1510
1511 #if !defined(ENABLE_SOFTFLOAT)
1512                         /* HACK: softnull checks on floats */
1513                         if (!INSTRUCTION_MUST_CHECK(iptr) && IS_FLT_DBL_TYPE(fieldtype))
1514                                 emit_nullpointer_check_force(cd, iptr, s1);
1515 #endif
1516
1517                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1518                                 /* XXX REMOVE ME */
1519                                 uf = iptr->sx.s23.s3.uf;
1520
1521                                 patcher_add_patch_ref(jd, PATCHER_get_putfield, uf, 0);
1522
1523                                 if (opt_showdisassemble)
1524                                         M_NOP;
1525                         }
1526
1527                         switch (fieldtype) {
1528                         case TYPE_INT:
1529 #if defined(ENABLE_SOFTFLOAT)
1530                         case TYPE_FLT:
1531 #endif
1532                         case TYPE_ADR:
1533                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1534                                 M_ILD(d, s1, disp);
1535                                 break;
1536                         case TYPE_LNG:
1537 #if defined(ENABLE_SOFTFLOAT)
1538                         case TYPE_DBL:
1539 #endif
1540                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1541                                 M_LLD(d, s1, disp);
1542                                 break;
1543 #if !defined(ENABLE_SOFTFLOAT)
1544                         case TYPE_FLT:
1545                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1546                                 M_FLD(d, s1, disp);
1547                                 break;
1548                         case TYPE_DBL:
1549                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1550                                 M_DLD(d, s1, disp);
1551                                 break;
1552 #endif
1553                         default:
1554                                 assert(0);
1555                         }
1556                         emit_store_dst(jd, iptr, d);
1557                         break;
1558
1559                 case ICMD_PUTFIELD:   /* ..., objectref, value  ==> ...               */
1560
1561                         s1 = emit_load_s1(jd, iptr, REG_ITMP3);
1562                         emit_nullpointer_check(cd, iptr, s1);
1563
1564                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1565                                 uf        = iptr->sx.s23.s3.uf;
1566                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1567                                 disp      = 0;
1568                         }
1569                         else {
1570                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1571                                 fieldtype = fi->type;
1572                                 disp      = fi->offset;
1573                         }
1574
1575 #if !defined(ENABLE_SOFTFLOAT)
1576                         /* HACK: softnull checks on floats */
1577                         if (!INSTRUCTION_MUST_CHECK(iptr) && IS_FLT_DBL_TYPE(fieldtype))
1578                                 emit_nullpointer_check_force(cd, iptr, s1);
1579 #endif
1580
1581                         switch (fieldtype) {
1582                         case TYPE_INT:
1583 #if defined(ENABLE_SOFTFLOAT)
1584                         case TYPE_FLT:
1585 #endif
1586                         case TYPE_ADR:
1587                                 s2 = emit_load_s2(jd, iptr, REG_ITMP1);
1588                                 break;
1589 #if defined(ENABLE_SOFTFLOAT)
1590                         case TYPE_DBL: /* fall through */
1591 #endif
1592                         case TYPE_LNG:
1593                                 s2 = emit_load_s2(jd, iptr, REG_ITMP12_PACKED);
1594                                 break;
1595 #if !defined(ENABLE_SOFTFLOAT)
1596                         case TYPE_FLT:
1597                         case TYPE_DBL:
1598                                 s2 = emit_load_s2(jd, iptr, REG_FTMP1);
1599                                 break;
1600 #endif
1601                         default:
1602                                 assert(0);
1603                         }
1604
1605                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1606                                 /* XXX REMOVE ME */
1607                                 uf = iptr->sx.s23.s3.uf;
1608
1609                                 patcher_add_patch_ref(jd, PATCHER_get_putfield, uf, 0);
1610
1611                                 if (opt_showdisassemble)
1612                                         M_NOP;
1613                         }
1614
1615                         switch (fieldtype) {
1616                         case TYPE_INT:
1617 #if defined(ENABLE_SOFTFLOAT)
1618                         case TYPE_FLT:
1619 #endif
1620                         case TYPE_ADR:
1621                                 M_IST(s2, s1, disp);
1622                                 break;
1623                         case TYPE_LNG:
1624 #if defined(ENABLE_SOFTFLOAT)
1625                         case TYPE_DBL:
1626 #endif
1627                                 M_LST(s2, s1, disp);
1628                                 break;
1629 #if !defined(ENABLE_SOFTFLOAT)
1630                         case TYPE_FLT:
1631                                 M_FST(s2, s1, disp);
1632                                 break;
1633                         case TYPE_DBL:
1634                                 M_DST(s2, s1, disp);
1635                                 break;
1636 #endif
1637                         default:
1638                                 assert(0);
1639                         }
1640                         break;
1641
1642
1643                 /* branch operations **************************************************/
1644
1645                 case ICMD_ATHROW:       /* ..., objectref ==> ... (, objectref)       */
1646
1647                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1648                         M_INTMOVE(s1, REG_ITMP1_XPTR);
1649                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1650                                 patcher_add_patch_ref(jd, PATCHER_resolve_class,
1651                                                                         iptr->sx.s23.s2.uc, 0);
1652
1653                                 if (opt_showdisassemble)
1654                                         M_NOP;
1655                         }
1656                         disp = dseg_add_functionptr(cd, asm_handle_exception);
1657                         M_DSEG_LOAD(REG_ITMP3, disp);
1658                         M_MOV(REG_ITMP2_XPC, REG_PC);
1659                         M_MOV(REG_PC, REG_ITMP3);
1660                         M_NOP;              /* nop ensures that XPC is less than the end  */
1661                                             /* of basic block                             */
1662                         break;
1663
1664                 case ICMD_GOTO:         /* ... ==> ...                                */
1665                 case ICMD_RET:
1666
1667                         emit_br(cd, iptr->dst.block);
1668                         break;
1669
1670                 case ICMD_JSR:          /* ... ==> ...                                */
1671
1672                         emit_br(cd, iptr->sx.s23.s3.jsrtarget.block);
1673                         break;
1674
1675                 case ICMD_IFNULL:       /* ..., value ==> ...                         */
1676                 case ICMD_IFNONNULL:
1677
1678                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1679                         M_TEQ_IMM(s1, 0);
1680                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFNULL, BRANCH_OPT_NONE);
1681                         break;
1682
1683                 case ICMD_IFLT:         /* ..., value ==> ...                         */
1684                 case ICMD_IFLE:         /* op1 = target JavaVM pc, val.i = constant   */
1685                 case ICMD_IFGT:
1686                 case ICMD_IFGE:
1687                 case ICMD_IFEQ:
1688                 case ICMD_IFNE:
1689
1690                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1691                         M_COMPARE(s1, iptr->sx.val.i);
1692                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFEQ, BRANCH_OPT_NONE);
1693                         break;
1694
1695                 case ICMD_IF_LEQ:       /* ..., value ==> ...                         */
1696
1697                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1698                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1699                         if (iptr->sx.val.l == 0) {
1700                                 M_ORR_S(s1, s2, REG_ITMP3);
1701                         }
1702                         else {
1703                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1704                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1705                                 M_CMP(s1, REG_ITMP3);*/
1706                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1707                                 M_CMPEQ(s2, REG_ITMP3);
1708                         }
1709                         emit_beq(cd, iptr->dst.block);
1710                         break;
1711
1712                 case ICMD_IF_LLT:       /* ..., value ==> ...                         */
1713
1714                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1715                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1716                         if (iptr->sx.val.l == 0) {
1717                                 /* if high word is less than zero, the whole long is too */
1718                                 M_CMP_IMM(s1, 0);
1719                                 emit_blt(cd, iptr->dst.block);
1720                         }
1721                         else {
1722                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1723                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1724                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1725                                 M_CMP(s1, REG_ITMP3);*/
1726                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1727                                 M_MOVGT_IMM(2, REG_ITMP1);
1728                                 M_MOVEQ_IMM(1, REG_ITMP1);
1729
1730                                 /* low compare: x=x-1(ifLO) */
1731                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1732                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1733                                 M_CMP(s2, REG_ITMP3);*/
1734                                 M_SUBLO_IMM(REG_ITMP1, REG_ITMP1, 1);
1735
1736                                 /* branch if (x LT 1) */
1737                                 M_CMP_IMM(REG_ITMP1, 1);
1738                                 emit_blt(cd, iptr->dst.block);
1739                         }
1740                         break;
1741
1742                 case ICMD_IF_LLE:       /* ..., value ==> ...                         */
1743
1744                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1745                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1746                         if (iptr->sx.val.l == 0) {
1747                                 /* if high word is less than zero, the whole long is too  */
1748                                 M_CMP_IMM(s1, 0);
1749                                 emit_blt(cd, iptr->dst.block);
1750
1751                                 /* ... otherwise the low word has to be zero (tricky!) */
1752                                 M_CMPEQ_IMM(s2, 0);
1753                                 emit_beq(cd, iptr->dst.block);
1754                         }
1755                         else {
1756                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1757                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1758                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1759                                 M_CMP(s1, REG_ITMP3);*/
1760                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1761                                 M_MOVGT_IMM(2, REG_ITMP1);
1762                                 M_MOVEQ_IMM(1, REG_ITMP1);
1763
1764                                 /* low compare: x=x+1(ifHI) */
1765                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1766                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1767                                 M_CMP(s2, REG_ITMP3);*/
1768                                 M_ADDHI_IMM(REG_ITMP1, REG_ITMP1, 1);
1769
1770                                 /* branch if (x LE 1) */
1771                                 M_CMP_IMM(REG_ITMP1, 1);
1772                                 emit_ble(cd, iptr->dst.block);
1773                         }
1774                         break;
1775
1776                 case ICMD_IF_LGE:       /* ..., value ==> ...                         */
1777
1778                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1779                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1780                         if (iptr->sx.val.l == 0) {
1781                                 /* if high word is greater or equal zero, the whole long is too */
1782                                 M_CMP_IMM(s1, 0);
1783                                 emit_bge(cd, iptr->dst.block);
1784                         }
1785                         else {
1786                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1787                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1788                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1789                                 M_CMP(s1, REG_ITMP3);*/
1790                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1791                                 M_MOVGT_IMM(2, REG_ITMP1);
1792                                 M_MOVEQ_IMM(1, REG_ITMP1);
1793
1794                                 /* low compare: x=x-1(ifLO) */
1795                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1796                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1797                                 M_CMP(s2, REG_ITMP3);*/
1798                                 M_SUBLO_IMM(REG_ITMP1, REG_ITMP1, 1);
1799
1800                                 /* branch if (x GE 1) */
1801                                 M_CMP_IMM(REG_ITMP1, 1);
1802                                 emit_bge(cd, iptr->dst.block);
1803                         }
1804                         break;
1805
1806                 case ICMD_IF_LGT:       /* ..., value ==> ...                         */
1807
1808                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1809                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1810 #if 0
1811                         if (iptr->sx.val.l == 0) {
1812                                 /* if high word is greater than zero, the whole long is too */
1813                                 M_CMP_IMM(s1, 0);
1814                                 M_BGT(0);
1815                                 codegen_add_branch_ref(cd, iptr->dst.block);
1816
1817                                 /* ... or high was zero and low is non zero (tricky!) */
1818                                 M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1819                                 M_MOVLT_IMM(1, REG_ITMP3);
1820                                 M_ORR_S(REG_ITMP3, s2, REG_ITMP3);
1821                                 M_BNE(0);
1822                                 codegen_add_branch_ref(cd, iptr->dst.block);
1823                         }
1824                         else {
1825 #endif
1826                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1827                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1828                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1829                                 M_CMP(s1, REG_ITMP3);*/
1830                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1831                                 M_MOVGT_IMM(2, REG_ITMP1);
1832                                 M_MOVEQ_IMM(1, REG_ITMP1);
1833
1834                                 /* low compare: x=x+1(ifHI) */
1835                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1836                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1837                                 M_CMP(s2, REG_ITMP3);*/
1838                                 M_ADDHI_IMM(REG_ITMP1, REG_ITMP1, 1);
1839
1840                                 /* branch if (x GT 1) */
1841                                 M_CMP_IMM(REG_ITMP1, 1);
1842                                 emit_bgt(cd, iptr->dst.block);
1843 #if 0
1844                         }
1845 #endif
1846                         break;
1847
1848                 case ICMD_IF_LNE:       /* ..., value ==> ...                         */
1849
1850                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1851                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1852                         if (iptr->sx.val.l == 0) {
1853                                 M_ORR_S(s1, s2, REG_ITMP3);
1854                         }
1855                         else {
1856                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1857                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1858                                 M_CMP(s1, REG_ITMP3);*/
1859                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1860                                 M_CMPEQ(s2, REG_ITMP3);
1861                         }
1862                         emit_bne(cd, iptr->dst.block);
1863                         break;
1864
1865                 case ICMD_IF_ICMPEQ:    /* ..., value, value ==> ...                  */
1866                 case ICMD_IF_ICMPNE:
1867                 case ICMD_IF_ICMPLT:
1868                 case ICMD_IF_ICMPLE:
1869                 case ICMD_IF_ICMPGT:
1870                 case ICMD_IF_ICMPGE:
1871
1872                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1873                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1874                         M_CMP(s1, s2);
1875                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IF_ICMPEQ, BRANCH_OPT_NONE);
1876                         break;
1877
1878                 case ICMD_IF_ACMPEQ:    /* ..., value, value ==> ...                  */
1879                 case ICMD_IF_ACMPNE:
1880
1881                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1882                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1883                         M_CMP(s1, s2);
1884                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IF_ACMPEQ, BRANCH_OPT_NONE);
1885                         break;
1886
1887                 case ICMD_IF_LCMPEQ:    /* ..., value, value ==> ...                  */
1888                                         /* op1 = target JavaVM pc                     */
1889
1890                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1891                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1892                         M_CMP(s1, s2);
1893
1894                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1895                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1896                         M_CMPEQ(s1, s2);
1897
1898                         emit_beq(cd, iptr->dst.block);
1899                         break;
1900
1901                 case ICMD_IF_LCMPNE:    /* ..., value, value ==> ...                  */
1902                                         /* op1 = target JavaVM pc                     */
1903
1904                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1905                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1906                         M_CMP(s1, s2);
1907
1908                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1909                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1910                         M_CMPEQ(s1, s2);
1911
1912                         emit_bne(cd, iptr->dst.block);
1913                         break;
1914
1915                 case ICMD_IF_LCMPLT:    /* ..., value, value ==> ...                  */
1916                                         /* op1 = target JavaVM pc                     */
1917
1918                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1919                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1920                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1921                         M_CMP(s1, s2);
1922                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1923                         M_MOVGT_IMM(2, REG_ITMP3);
1924                         M_MOVEQ_IMM(1, REG_ITMP3);
1925
1926                         /* low compare: x=x-1(ifLO) */
1927                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1928                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1929                         M_CMP(s1, s2);
1930                         M_SUBLO_IMM(REG_ITMP3, REG_ITMP3, 1);
1931
1932                         /* branch if (x LT 1) */
1933                         M_CMP_IMM(REG_ITMP3, 1);
1934                         emit_blt(cd, iptr->dst.block);
1935                         break;
1936
1937                 case ICMD_IF_LCMPLE:    /* ..., value, value ==> ...                  */
1938                                         /* op1 = target JavaVM pc                     */
1939
1940                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1941                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1942                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1943                         M_CMP(s1, s2);
1944                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1945                         M_MOVGT_IMM(2, REG_ITMP3);
1946                         M_MOVEQ_IMM(1, REG_ITMP3);
1947
1948                         /* low compare: x=x-1(ifLO) */
1949                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1950                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1951                         M_CMP(s1, s2);
1952                         M_ADDHI_IMM(REG_ITMP3, REG_ITMP3, 1);
1953
1954                         /* branch if (x LE 1) */
1955                         M_CMP_IMM(REG_ITMP3, 1);
1956                         emit_ble(cd, iptr->dst.block);
1957                         break;
1958
1959                 case ICMD_IF_LCMPGT:    /* ..., value, value ==> ...                  */
1960                                         /* op1 = target JavaVM pc                     */
1961
1962                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1963                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1964                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1965                         M_CMP(s1, s2);
1966                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1967                         M_MOVGT_IMM(2, REG_ITMP3);
1968                         M_MOVEQ_IMM(1, REG_ITMP3);
1969
1970                         /* low compare: x=x-1(ifLO) */
1971                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1972                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1973                         M_CMP(s1, s2);
1974                         M_ADDHI_IMM(REG_ITMP3, REG_ITMP3, 1);
1975
1976                         /* branch if (x GT 1) */
1977                         M_CMP_IMM(REG_ITMP3, 1);
1978                         emit_bgt(cd, iptr->dst.block);
1979                         break;
1980
1981                 case ICMD_IF_LCMPGE:    /* ..., value, value ==> ...                  */
1982                                         /* op1 = target JavaVM pc                     */
1983
1984                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1985                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1986                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1987                         M_CMP(s1, s2);
1988                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1989                         M_MOVGT_IMM(2, REG_ITMP3);
1990                         M_MOVEQ_IMM(1, REG_ITMP3);
1991
1992                         /* low compare: x=x-1(ifLO) */
1993                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1994                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1995                         M_CMP(s1, s2);
1996                         M_SUBLO_IMM(REG_ITMP3, REG_ITMP3, 1);
1997
1998                         /* branch if (x GE 1) */
1999                         M_CMP_IMM(REG_ITMP3, 1);
2000                         emit_bge(cd, iptr->dst.block);
2001                         break;
2002
2003                 case ICMD_TABLESWITCH:  /* ..., index ==> ...                         */
2004                         {
2005                         s4 i, l;
2006                         branch_target_t *table;
2007
2008                         table = iptr->dst.table;
2009
2010                         l = iptr->sx.s23.s2.tablelow;
2011                         i = iptr->sx.s23.s3.tablehigh;
2012
2013                         /* calculate new index (index - low) */
2014                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2015                         if (l  == 0) {
2016                                 M_INTMOVE(s1, REG_ITMP1);
2017                         } else if (IS_IMM(l)) {
2018                                 M_SUB_IMM(REG_ITMP1, s1, l);
2019                         } else {
2020                                 ICONST(REG_ITMP2, l);
2021                                 M_SUB(REG_ITMP1, s1, REG_ITMP2);
2022                         }
2023
2024                         /* range check (index <= high-low) */
2025                         i = i - l + 1;
2026                         M_COMPARE(REG_ITMP1, i-1);
2027                         emit_bugt(cd, table[0].block);
2028
2029                         /* build jump table top down and use address of lowest entry */
2030
2031                         table += i;
2032
2033                         while (--i >= 0) {
2034                                 dseg_add_target(cd, table->block);
2035                                 --table;
2036                         }
2037                         }
2038
2039                         /* length of dataseg after last dseg_add_target is used by load */
2040                         /* TODO: this loads from data-segment */
2041                         M_ADD(REG_ITMP2, REG_PV, REG_LSL(REG_ITMP1, 2));
2042                         M_LDR(REG_PC, REG_ITMP2, -(cd->dseglen));
2043                         break;
2044
2045                 case ICMD_LOOKUPSWITCH: /* ..., key ==> ...                           */
2046                         {
2047                         s4 i;
2048                         lookup_target_t *lookup;
2049
2050                         lookup = iptr->dst.lookup;
2051
2052                         i = iptr->sx.s23.s2.lookupcount;
2053
2054                         /* compare keys */
2055                         MCODECHECK((i<<2)+8);
2056                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2057
2058                         while (--i >= 0) {
2059                                 M_COMPARE(s1, lookup->value);
2060                                 emit_beq(cd, lookup->target.block);
2061                                 lookup++;
2062                         }
2063
2064                         /* default branch */
2065                         emit_br(cd, iptr->sx.s23.s3.lookupdefault.block);
2066                         }
2067                         break;
2068
2069                 case ICMD_FRETURN:      /* ..., retvalue ==> ...                      */
2070
2071 #if !defined(ENABLE_SOFTFLOAT)
2072                         REPLACEMENT_POINT_RETURN(cd, iptr);
2073                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
2074                         M_CAST_FLT_TO_INT_TYPED(VAROP(iptr->s1)->type, s1, REG_RESULT);
2075                         goto ICMD_RETURN_do;
2076 #endif
2077
2078                 case ICMD_IRETURN:      /* ..., retvalue ==> ...                      */
2079
2080                         REPLACEMENT_POINT_RETURN(cd, iptr);
2081                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2082                         M_INTMOVE(s1, REG_RESULT);
2083                         goto ICMD_RETURN_do;
2084
2085                 case ICMD_DRETURN:      /* ..., retvalue ==> ...                      */
2086
2087 #if !defined(ENABLE_SOFTFLOAT)
2088                         REPLACEMENT_POINT_RETURN(cd, iptr);
2089                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
2090                         M_CAST_FLT_TO_INT_TYPED(VAROP(iptr->s1)->type, s1, REG_RESULT_PACKED);
2091                         goto ICMD_RETURN_do;
2092 #endif
2093
2094                 case ICMD_LRETURN:      /* ..., retvalue ==> ...                      */
2095
2096                         REPLACEMENT_POINT_RETURN(cd, iptr);
2097                         s1 = emit_load_s1(jd, iptr, REG_RESULT_PACKED);
2098                         M_LNGMOVE(s1, REG_RESULT_PACKED);
2099                         goto ICMD_RETURN_do;
2100
2101                 case ICMD_ARETURN:      /* ..., retvalue ==> ...                      */
2102
2103                         REPLACEMENT_POINT_RETURN(cd, iptr);
2104                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2105                         M_INTMOVE(s1, REG_RESULT);
2106                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2107                                 patcher_add_patch_ref(jd, PATCHER_resolve_class,
2108                                                                         iptr->sx.s23.s2.uc, 0);
2109
2110                                 if (opt_showdisassemble)
2111                                         M_NOP;
2112                         }
2113                         goto ICMD_RETURN_do;
2114
2115                 case ICMD_RETURN:       /* ...  ==> ...                               */
2116
2117                         REPLACEMENT_POINT_RETURN(cd, iptr);
2118                         ICMD_RETURN_do:
2119
2120 #if !defined(NDEBUG)
2121                         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
2122                                 emit_verbosecall_exit(jd);
2123 #endif
2124
2125 #if defined(ENABLE_THREADS)
2126                         /* call monitorexit function */
2127
2128                         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
2129                                 /* stack offset for monitor argument */
2130
2131                                 s1 = rd->memuse * 8;
2132
2133                                 /* we need to save the proper return value */
2134
2135                                 switch (iptr->opc) {
2136                                 case ICMD_IRETURN:
2137                                 case ICMD_ARETURN:
2138                                 case ICMD_LRETURN:
2139                                 case ICMD_FRETURN: /* XXX TWISTI: is that correct? */
2140                                 case ICMD_DRETURN:
2141                                         M_STMFD(BITMASK_RESULT, REG_SP);
2142                                         s1 += 2 * 4;
2143                                         break;
2144                                 }
2145
2146                                 M_LDR(REG_A0, REG_SP, s1);
2147                                 disp = dseg_add_functionptr(cd, LOCK_monitor_exit);
2148                                 M_DSEG_BRANCH(disp);
2149
2150                                 /* we no longer need PV here, no more loading */
2151                                 /*s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2152                                 M_RECOMPUTE_PV(s1);*/
2153
2154                                 switch (iptr->opc) {
2155                                 case ICMD_IRETURN:
2156                                 case ICMD_ARETURN:
2157                                 case ICMD_LRETURN:
2158                                 case ICMD_FRETURN: /* XXX TWISTI: is that correct? */
2159                                 case ICMD_DRETURN:
2160                                         M_LDMFD(BITMASK_RESULT, REG_SP);
2161                                         break;
2162                                 }
2163                         }
2164 #endif
2165
2166                         /* deallocate stackframe for spilled variables */
2167
2168                         if ((cd->stackframesize / 4 - savedregs_num) > 0)
2169                                 M_ADD_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - savedregs_num);
2170
2171                         /* restore callee saved registers + do return */
2172
2173                         if (savedregs_bitmask) {
2174                                 if (!jd->isleafmethod) {
2175                                         savedregs_bitmask &= ~(1<<REG_LR);
2176                                         savedregs_bitmask |= (1<<REG_PC);
2177                                 }
2178                                 M_LDMFD(savedregs_bitmask, REG_SP);
2179                         }
2180
2181                         /* if LR was not on stack, we need to return manually */
2182
2183                         if (jd->isleafmethod)
2184                                 M_MOV(REG_PC, REG_LR);
2185                         break;
2186
2187                 case ICMD_BUILTIN:      /* ..., arg1, arg2, arg3 ==> ...              */
2188
2189                         bte = iptr->sx.s23.s3.bte;
2190                         md  = bte->md;
2191                         goto ICMD_INVOKE_do;
2192
2193                 case ICMD_INVOKESTATIC: /* ..., [arg1, [arg2 ...]] ==> ...            */
2194                 case ICMD_INVOKESPECIAL:/* ..., objectref, [arg1, [arg2 ...]] ==> ... */
2195                 case ICMD_INVOKEVIRTUAL:/* op1 = arg count, val.a = method pointer    */
2196                 case ICMD_INVOKEINTERFACE:
2197
2198                         REPLACEMENT_POINT_INVOKE(cd, iptr);
2199
2200                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2201                                 lm = NULL;
2202                                 um = iptr->sx.s23.s3.um;
2203                                 md = um->methodref->parseddesc.md;
2204                         }
2205                         else {
2206                                 lm = iptr->sx.s23.s3.fmiref->p.method;
2207                                 um = NULL;
2208                                 md = lm->parseddesc;
2209                         }
2210
2211                 ICMD_INVOKE_do:
2212                         /* copy arguments to registers or stack location */
2213
2214                         s3 = md->paramcount;
2215
2216                         MCODECHECK((s3 << 1) + 64);
2217
2218                         for (s3 = s3 - 1; s3 >= 0; s3--) {
2219                                 var = VAR(iptr->sx.s23.s2.args[s3]);
2220                                 d   = md->params[s3].regoff;
2221
2222                                 if (var->flags & PREALLOC) /* argument was precolored? */
2223                                         continue;
2224
2225                                 /* TODO: document me */
2226 #if !defined(ENABLE_SOFTFLOAT)
2227                                 if (IS_INT_LNG_TYPE(var->type)) {
2228 #endif /* !defined(ENABLE_SOFTFLOAT) */
2229                                         if (!md->params[s3].inmemory) {
2230                                                 s1 = emit_load(jd, iptr, var, d);
2231
2232                                                 if (IS_2_WORD_TYPE(var->type))
2233                                                         M_LNGMOVE(s1, d);
2234                                                 else
2235                                                         M_INTMOVE(s1, d);
2236                                         }
2237                                         else {
2238                                                 if (IS_2_WORD_TYPE(var->type)) {
2239                                                         s1 = emit_load(jd, iptr, var, REG_ITMP12_PACKED);
2240                                                         M_LST(s1, REG_SP, d);
2241                                                 }
2242                                                 else {
2243                                                         s1 = emit_load(jd, iptr, var, REG_ITMP1);
2244                                                         M_IST(s1, REG_SP, d);
2245                                                 }
2246                                         }
2247 #if !defined(ENABLE_SOFTFLOAT)
2248                                 }
2249                                 else {
2250                                         if (!md->params[s3].inmemory) {
2251                                                 s1 = emit_load(jd, iptr, var, REG_FTMP1);
2252                                                 M_CAST_FLT_TO_INT_TYPED(var->type, s1, d);
2253                                         }
2254                                         else {
2255                                                 s1 = emit_load(jd, iptr, var, REG_FTMP1);
2256                                                 if (IS_2_WORD_TYPE(var->type))
2257                                                         M_DST(s1, REG_SP, d);
2258                                                 else
2259                                                         M_FST(s1, REG_SP, d);
2260                                         }
2261                                 }
2262 #endif /* !defined(ENABLE_SOFTFLOAT) */
2263                         }
2264
2265                         switch (iptr->opc) {
2266                         case ICMD_BUILTIN:
2267
2268                                 if (bte->stub == NULL) {
2269                                         disp = dseg_add_functionptr(cd, bte->fp);
2270                                 } else {
2271                                         disp = dseg_add_functionptr(cd, bte->stub);
2272                                 }
2273
2274                                 M_DSEG_LOAD(REG_PV, disp); /* pointer to built-in-function */
2275
2276                                 /* generate the actual call */
2277
2278                                 M_MOV(REG_LR, REG_PC);
2279                                 M_MOV(REG_PC, REG_PV);
2280                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2281                                 M_RECOMPUTE_PV(s1);
2282
2283                                 emit_exception_check(cd, iptr);
2284                                 break;
2285
2286                         case ICMD_INVOKESPECIAL:
2287                                 emit_nullpointer_check(cd, iptr, REG_A0);
2288                                 /* fall through */
2289
2290                         case ICMD_INVOKESTATIC:
2291                                 if (lm == NULL) {
2292                                         disp = dseg_add_unique_address(cd, NULL);
2293
2294                                         patcher_add_patch_ref(jd, PATCHER_invokestatic_special,
2295                                                                                 um, disp);
2296
2297                                         if (opt_showdisassemble)
2298                                                 M_NOP;
2299                                 }
2300                                 else
2301                                         disp = dseg_add_address(cd, lm->stubroutine);
2302
2303                                 M_DSEG_LOAD(REG_PV, disp);            /* Pointer to method */
2304
2305                                 /* generate the actual call */
2306
2307                                 M_MOV(REG_LR, REG_PC);
2308                                 M_MOV(REG_PC, REG_PV);
2309                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2310                                 M_RECOMPUTE_PV(s1);
2311                                 break;
2312
2313                         case ICMD_INVOKEVIRTUAL:
2314                                 if (lm == NULL) {
2315                                         patcher_add_patch_ref(jd, PATCHER_invokevirtual, um, 0);
2316
2317                                         if (opt_showdisassemble)
2318                                                 M_NOP;
2319
2320                                         s1 = 0;
2321                                 }
2322                                 else
2323                                         s1 = OFFSET(vftbl_t, table[0]) +
2324                                                 sizeof(methodptr) * lm->vftblindex;
2325
2326                                 /* implicit null-pointer check */
2327                                 M_LDR_INTERN(REG_METHODPTR, REG_A0,
2328                                                          OFFSET(java_object_t, vftbl));
2329                                 M_LDR_INTERN(REG_PV, REG_METHODPTR, s1);
2330
2331                                 /* generate the actual call */
2332
2333                                 M_MOV(REG_LR, REG_PC);
2334                                 M_MOV(REG_PC, REG_PV);
2335                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2336                                 M_RECOMPUTE_PV(s1);
2337                                 break;
2338
2339                         case ICMD_INVOKEINTERFACE:
2340                                 if (lm == NULL) {
2341                                         patcher_add_patch_ref(jd, PATCHER_invokeinterface, um, 0);
2342
2343                                         if (opt_showdisassemble)
2344                                                 M_NOP;
2345
2346                                         s1 = 0;
2347                                         s2 = 0;
2348                                 }
2349                                 else {
2350                                         s1 = OFFSET(vftbl_t, interfacetable[0]) -
2351                                                 sizeof(methodptr*) * lm->class->index;
2352                                         s2 = sizeof(methodptr) * (lm - lm->class->methods);
2353                                 }
2354
2355                                 /* implicit null-pointer check */
2356                                 M_LDR_INTERN(REG_METHODPTR, REG_A0,
2357                                                          OFFSET(java_object_t, vftbl));
2358                                 M_LDR_INTERN(REG_METHODPTR, REG_METHODPTR, s1);
2359                                 M_LDR_INTERN(REG_PV, REG_METHODPTR, s2);
2360
2361                                 /* generate the actual call */
2362
2363                                 M_MOV(REG_LR, REG_PC);
2364                                 M_MOV(REG_PC, REG_PV);
2365                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2366                                 M_RECOMPUTE_PV(s1);
2367                                 break;
2368                         }
2369
2370                         /* store size of call code in replacement point */
2371                         REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2372
2373                         /* store return value */
2374
2375                         d = md->returntype.type;
2376
2377 #if !defined(__SOFTFP__)
2378                         /* TODO: this is only a hack, since we use R0/R1 for float
2379                            return!  this depends on gcc; it is independent from
2380                            our ENABLE_SOFTFLOAT define */
2381                         if (iptr->opc == ICMD_BUILTIN && d != TYPE_VOID && IS_FLT_DBL_TYPE(d)) {
2382 #if 0 && !defined(NDEBUG)
2383                                 dolog("BUILTIN that returns float or double (%s.%s)", m->class->name->text, m->name->text);
2384 #endif
2385                                 /* we cannot use this macro, since it is not defined
2386                                    in ENABLE_SOFTFLOAT M_CAST_FLT_TO_INT_TYPED(d,
2387                                    REG_FRESULT, REG_RESULT_TYPED(d)); */
2388                                 if (IS_2_WORD_TYPE(d)) {
2389                                         DCD(0xed2d8102); /* stfd    f0, [sp, #-8]! */
2390                                         M_LDRD_UPDATE(REG_RESULT_PACKED, REG_SP, 8);
2391                                 } else {
2392                                         DCD(0xed2d0101); /* stfs    f0, [sp, #-4]!*/
2393                                         M_LDR_UPDATE(REG_RESULT, REG_SP, 4);
2394                                 }
2395                         }
2396 #endif
2397
2398                         if (d != TYPE_VOID) {
2399 #if !defined(ENABLE_SOFTFLOAT)
2400                                 if (IS_INT_LNG_TYPE(d)) {
2401 #endif /* !defined(ENABLE_SOFTFLOAT) */
2402                                         if (IS_2_WORD_TYPE(d)) {
2403                                                 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
2404                                                 M_LNGMOVE(REG_RESULT_PACKED, s1);
2405                                         }
2406                                         else {
2407                                                 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2408                                                 M_INTMOVE(REG_RESULT, s1);
2409                                         }
2410
2411 #if !defined(ENABLE_SOFTFLOAT)
2412                                 } else {
2413                                         s1 = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
2414                                         M_CAST_INT_TO_FLT_TYPED(VAROP(iptr->dst)->type, REG_RESULT_TYPED(VAROP(iptr->dst)->type), s1);
2415                                 }
2416 #endif /* !defined(ENABLE_SOFTFLOAT) */
2417
2418                                 emit_store_dst(jd, iptr, s1);
2419                         }
2420                         break;
2421
2422                 case ICMD_CHECKCAST:  /* ..., objectref ==> ..., objectref            */
2423
2424                         if (!(iptr->flags.bits & INS_FLAG_ARRAY)) {
2425                                 /* object type cast-check */
2426
2427                         classinfo *super;
2428                         s4         superindex;
2429
2430                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2431                                 super      = NULL;
2432                                 superindex = 0;
2433                         }
2434                         else {
2435                                 super      = iptr->sx.s23.s3.c.cls;
2436                                 superindex = super->index;
2437                         }
2438
2439                                 if ((super == NULL) || !(super->flags & ACC_INTERFACE))
2440                                         CODEGEN_CRITICAL_SECTION_NEW;
2441
2442                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2443
2444                         /* if class is not resolved, check which code to call */
2445
2446                         if (super == NULL) {
2447                                 M_TST(s1, s1);
2448                                 emit_label_beq(cd, BRANCH_LABEL_1);
2449
2450                                 disp = dseg_add_unique_s4(cd, 0); /* super->flags */
2451                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_flags,
2452                                                     iptr->sx.s23.s3.c.ref, disp);
2453
2454                                 if (opt_showdisassemble)
2455                                         M_NOP;
2456
2457                                 M_DSEG_LOAD(REG_ITMP2, disp);
2458                                 disp = dseg_add_s4(cd, ACC_INTERFACE);
2459                                 M_DSEG_LOAD(REG_ITMP3, disp);
2460                                 M_TST(REG_ITMP2, REG_ITMP3);
2461                                 emit_label_beq(cd, BRANCH_LABEL_2);
2462                         }
2463
2464                         /* interface checkcast code */
2465
2466                         if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2467                                 if ((super == NULL) || !IS_IMM(superindex)) {
2468                                         disp = dseg_add_unique_s4(cd, superindex);
2469                                 }
2470                                 if (super == NULL) {
2471                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_index,
2472                                                             iptr->sx.s23.s3.c.ref, disp);
2473
2474                                         if (opt_showdisassemble)
2475                                                 M_NOP;
2476                                 }
2477                                 else {
2478                                         M_TST(s1, s1);
2479                                         emit_label_beq(cd, BRANCH_LABEL_3);
2480                                 }
2481
2482                                 M_LDR_INTERN(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
2483                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, interfacetablelength));
2484
2485                                 /* we put unresolved or non-immediate superindices onto dseg */
2486                                 if ((super == NULL) || !IS_IMM(superindex)) {
2487                                         /* disp was computed before we added the patcher */
2488                                         M_DSEG_LOAD(REG_ITMP2, disp);
2489                                         M_CMP(REG_ITMP3, REG_ITMP2);
2490                                 } else {
2491                                         assert(IS_IMM(superindex));
2492                                         M_CMP_IMM(REG_ITMP3, superindex);
2493                                 }
2494
2495                                 emit_classcast_check(cd, iptr, BRANCH_LE, REG_ITMP3, s1);
2496
2497                                 /* if we loaded the superindex out of the dseg above, we do
2498                                    things differently here! */
2499                                 if ((super == NULL) || !IS_IMM(superindex)) {
2500
2501                                         M_LDR_INTERN(REG_ITMP3, s1, OFFSET(java_object_t, vftbl));
2502
2503                                         /* this assumes something */
2504                                         assert(OFFSET(vftbl_t, interfacetable[0]) == 0);
2505
2506                                         /* this does: REG_ITMP3 - superindex * sizeof(methodptr*) */
2507                                         assert(sizeof(methodptr*) == 4);
2508                                         M_SUB(REG_ITMP2, REG_ITMP3, REG_LSL(REG_ITMP2, 2));
2509
2510                                         s2 = 0;
2511
2512                                 } else {
2513
2514                                         s2 = OFFSET(vftbl_t, interfacetable[0]) -
2515                                                                 superindex * sizeof(methodptr*);
2516
2517                                 }
2518
2519                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, s2);
2520                                 M_TST(REG_ITMP3, REG_ITMP3);
2521                                 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_ITMP3, s1);
2522
2523                                 if (super == NULL)
2524                                         emit_label_br(cd, BRANCH_LABEL_4);
2525                                 else
2526                                         emit_label(cd, BRANCH_LABEL_3);
2527                         }
2528
2529                         /* class checkcast code */
2530
2531                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2532                                 if (super == NULL) {
2533                                         emit_label(cd, BRANCH_LABEL_2);
2534
2535                                         disp = dseg_add_unique_address(cd, NULL);
2536
2537                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_vftbl,
2538                                                             iptr->sx.s23.s3.c.ref,
2539                                                                                 disp);
2540
2541                                         if (opt_showdisassemble)
2542                                                 M_NOP;
2543                                 }
2544                                 else {
2545                                         disp = dseg_add_address(cd, super->vftbl);
2546
2547                                         M_TST(s1, s1);
2548                                         emit_label_beq(cd, BRANCH_LABEL_5);
2549                                 }
2550
2551                                 M_LDR_INTERN(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
2552                                 M_DSEG_LOAD(REG_ITMP3, disp);
2553
2554                                 CODEGEN_CRITICAL_SECTION_START;
2555
2556                                 M_LDR_INTERN(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, baseval));
2557                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, baseval));
2558                                 M_SUB(REG_ITMP2, REG_ITMP2, REG_ITMP3);
2559                                 M_DSEG_LOAD(REG_ITMP3, disp);
2560                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, diffval));
2561
2562                                 CODEGEN_CRITICAL_SECTION_END;
2563
2564                                 M_CMP(REG_ITMP2, REG_ITMP3);
2565                                 emit_classcast_check(cd, iptr, BRANCH_UGT, 0, s1);
2566
2567                                 if (super != NULL)
2568                                         emit_label(cd, BRANCH_LABEL_5);
2569                         }
2570
2571                         if (super == NULL) {
2572                                 emit_label(cd, BRANCH_LABEL_1);
2573                                 emit_label(cd, BRANCH_LABEL_4);
2574                         }
2575
2576                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
2577                         }
2578                         else {
2579                                 /* array type cast-check */
2580
2581                                 s1 = emit_load_s1(jd, iptr, REG_A0);
2582                                 M_INTMOVE(s1, REG_A0);
2583
2584                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2585                                         disp = dseg_add_unique_address(cd, NULL);
2586
2587                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
2588                                                                                 iptr->sx.s23.s3.c.ref,
2589                                                                                 disp);
2590
2591                                         if (opt_showdisassemble)
2592                                                 M_NOP;
2593                                 }
2594                                 else
2595                                         disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2596
2597                                 M_DSEG_LOAD(REG_A1, disp);
2598                                 disp = dseg_add_functionptr(cd, BUILTIN_arraycheckcast);
2599                                 M_DSEG_BRANCH(disp);
2600
2601                                 /* recompute pv */
2602                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2603                                 M_RECOMPUTE_PV(disp);
2604
2605                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2606                                 M_TST(REG_RESULT, REG_RESULT);
2607                                 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_RESULT, s1);
2608
2609                                 d = codegen_reg_of_dst(jd, iptr, s1);
2610                         }
2611
2612                         M_INTMOVE(s1, d);
2613                         emit_store_dst(jd, iptr, d);
2614                         break;
2615
2616                 case ICMD_INSTANCEOF: /* ..., objectref ==> ..., intresult            */
2617
2618                         {
2619                         classinfo *super;
2620                         s4         superindex;
2621
2622                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2623                                 super      = NULL;
2624                                 superindex = 0;
2625                         }
2626                         else {
2627                                 super      = iptr->sx.s23.s3.c.cls;
2628                                 superindex = super->index;
2629                         }
2630
2631                         if ((super == NULL) || !(super->flags & ACC_INTERFACE))
2632                                 CODEGEN_CRITICAL_SECTION_NEW;
2633
2634                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2635                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
2636
2637                         if (s1 == d) {
2638                                 M_MOV(REG_ITMP1, s1);
2639                                 s1 = REG_ITMP1;
2640                         }
2641
2642                         /* if class is not resolved, check which code to call */
2643
2644                         if (super == NULL) {
2645                                 M_EOR(d, d, d);
2646
2647                                 M_TST(s1, s1);
2648                                 emit_label_beq(cd, BRANCH_LABEL_1);
2649
2650                                 disp = dseg_add_unique_s4(cd, 0); /* super->flags */
2651                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_flags,
2652                                                     iptr->sx.s23.s3.c.ref, disp);
2653
2654                                 if (opt_showdisassemble)
2655                                         M_NOP;
2656
2657                                 M_DSEG_LOAD(REG_ITMP2, disp);
2658                                 disp = dseg_add_s4(cd, ACC_INTERFACE);
2659                                 M_DSEG_LOAD(REG_ITMP3, disp);
2660                                 M_TST(REG_ITMP2, REG_ITMP3);
2661                                 emit_label_beq(cd, BRANCH_LABEL_2);
2662                         }
2663
2664                         /* interface checkcast code */
2665
2666                         if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2667                                 if ((super == NULL) || !IS_IMM(superindex)) {
2668                                         disp = dseg_add_unique_s4(cd, superindex);
2669                                 }
2670                                 if (super == NULL) {
2671                                         /* If d == REG_ITMP2, then it's destroyed in check
2672                                            code above.  */
2673                                         if (d == REG_ITMP2)
2674                                                 M_EOR(d, d, d);
2675
2676                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_index,
2677                                                             iptr->sx.s23.s3.c.ref, disp);
2678
2679                                         if (opt_showdisassemble)
2680                                                 M_NOP;
2681                                 }
2682                                 else {
2683                                         M_EOR(d, d, d);
2684                                         M_TST(s1, s1);
2685                                         emit_label_beq(cd, BRANCH_LABEL_3);
2686                                 }
2687
2688                                 M_LDR_INTERN(REG_ITMP1, s1, OFFSET(java_object_t, vftbl));
2689                                 M_LDR_INTERN(REG_ITMP3,
2690                                                          REG_ITMP1, OFFSET(vftbl_t, interfacetablelength));
2691
2692                                 /* we put unresolved or non-immediate superindices onto dseg
2693                                    and do things slightly different */
2694                                 if ((super == NULL) || !IS_IMM(superindex)) {
2695                                         /* disp was computed before we added the patcher */
2696                                         M_DSEG_LOAD(REG_ITMP2, disp);
2697                                         M_CMP(REG_ITMP3, REG_ITMP2);
2698
2699                                         if (d == REG_ITMP2) {
2700                                                 M_EORLE(d, d, d);
2701                                                 M_BLE(4);
2702                                         } else {
2703                                                 M_BLE(3);
2704                                         }
2705
2706                                         /* this assumes something */
2707                                         assert(OFFSET(vftbl_t, interfacetable[0]) == 0);
2708
2709                                         /* this does: REG_ITMP3 - superindex * sizeof(methodptr*) */
2710                                         assert(sizeof(methodptr*) == 4);
2711                                         M_SUB(REG_ITMP1, REG_ITMP1, REG_LSL(REG_ITMP2, 2));
2712
2713                                         if (d == REG_ITMP2) {
2714                                                 M_EOR(d, d, d);
2715                                         }
2716
2717                                         s2 = 0;
2718
2719                                 } else {
2720                                         assert(IS_IMM(superindex));
2721                                         M_CMP_IMM(REG_ITMP3, superindex);
2722
2723                                         M_BLE(2);
2724
2725                                         s2 = OFFSET(vftbl_t, interfacetable[0]) -
2726                                                 superindex * sizeof(methodptr*);
2727
2728                                 }
2729
2730                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP1, s2);
2731                                 M_TST(REG_ITMP3, REG_ITMP3);
2732                                 M_MOVNE_IMM(1, d);
2733
2734                                 if (super == NULL)
2735                                         emit_label_br(cd, BRANCH_LABEL_4);
2736                                 else
2737                                         emit_label(cd, BRANCH_LABEL_3);
2738                         }
2739
2740                         /* class checkcast code */
2741
2742                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2743                                 if (super == NULL) {
2744                                         emit_label(cd, BRANCH_LABEL_2);
2745
2746                                         disp = dseg_add_unique_address(cd, NULL);
2747
2748                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_vftbl,
2749                                                             iptr->sx.s23.s3.c.ref, disp);
2750
2751                                         if (opt_showdisassemble)
2752                                                 M_NOP;
2753                                 }
2754                                 else {
2755                                         disp = dseg_add_address(cd, super->vftbl);
2756
2757                                         M_EOR(d, d, d);
2758                                         M_TST(s1, s1);
2759                                         emit_label_beq(cd, BRANCH_LABEL_5);
2760                                 }
2761
2762                                 M_LDR_INTERN(REG_ITMP1, s1, OFFSET(java_object_t, vftbl));
2763                                 M_DSEG_LOAD(REG_ITMP2, disp);
2764
2765                                 CODEGEN_CRITICAL_SECTION_START;
2766
2767                                 M_LDR_INTERN(REG_ITMP1, REG_ITMP1, OFFSET(vftbl_t, baseval));
2768                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2769                                 M_LDR_INTERN(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2770
2771                                 CODEGEN_CRITICAL_SECTION_END;
2772
2773                                 M_SUB(REG_ITMP1, REG_ITMP1, REG_ITMP3);
2774                                 M_CMP(REG_ITMP1, REG_ITMP2);
2775                                 /* If d == REG_ITMP2, then it's destroyed */
2776                                 if (d == REG_ITMP2)
2777                                         M_EOR(d, d, d);
2778                                 M_MOVLS_IMM(1, d);
2779
2780                                 if (super != NULL)
2781                                         emit_label(cd, BRANCH_LABEL_5);
2782                         }
2783
2784                         if (super == NULL) {
2785                                 emit_label(cd, BRANCH_LABEL_1);
2786                                 emit_label(cd, BRANCH_LABEL_4);
2787                         }
2788
2789                         }
2790
2791                         emit_store_dst(jd, iptr, d);
2792                         break;
2793
2794                 case ICMD_MULTIANEWARRAY:/* ..., cnt1, [cnt2, ...] ==> ..., arrayref  */
2795
2796                         /* copy sizes to stack if necessary  */
2797
2798                         MCODECHECK((iptr->s1.argcount << 1) + 64);
2799
2800                         for (s1 = iptr->s1.argcount; --s1 >= 0; ) {
2801
2802                                 var = VAR(iptr->sx.s23.s2.args[s1]);
2803
2804                                 /* copy SAVEDVAR sizes to stack */
2805
2806                                 if (!(var->flags & PREALLOC)) {
2807                                         s2 = emit_load(jd, iptr, var, REG_ITMP1);
2808                                         M_STR(s2, REG_SP, s1 * 4);
2809                                 }
2810                         }
2811
2812                         /* a0 = dimension count */
2813
2814                         assert(IS_IMM(iptr->s1.argcount));
2815                         M_MOV_IMM(REG_A0, iptr->s1.argcount);
2816
2817                         /* is patcher function set? */
2818
2819                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2820                                 disp = dseg_add_unique_address(cd, NULL);
2821
2822                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
2823                                                                         iptr->sx.s23.s3.c.ref, disp);
2824
2825                                 if (opt_showdisassemble)
2826                                         M_NOP;
2827                         }
2828                         else
2829                                 disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2830
2831                         /* a1 = arraydescriptor */
2832
2833                         M_DSEG_LOAD(REG_A1, disp);
2834
2835                         /* a2 = pointer to dimensions = stack pointer */
2836
2837                         M_INTMOVE(REG_SP, REG_A2);
2838
2839                         /* call builtin_multianewarray here */
2840
2841                         disp = dseg_add_functionptr(cd, BUILTIN_multianewarray);
2842                         M_DSEG_BRANCH(disp);
2843
2844                         /* recompute pv */
2845
2846                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2847                         M_RECOMPUTE_PV(s1);
2848
2849                         /* check for exception before result assignment */
2850
2851                         emit_exception_check(cd, iptr);
2852
2853                         /* get arrayref */
2854
2855                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2856                         M_INTMOVE(REG_RESULT, d);
2857                         emit_store_dst(jd, iptr, d);
2858                         break;
2859
2860                 case ICMD_CHECKNULL:  /* ..., objectref  ==> ..., objectref           */
2861
2862                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2863                         emit_nullpointer_check(cd, iptr, s1);
2864                         break;
2865
2866                 default:
2867                         exceptions_throw_internalerror("Unknown ICMD %d during code generation",
2868                                                                                    iptr->opc);
2869                         return false;
2870                 } /* the big switch */
2871
2872                 } /* for all instructions */
2873
2874         } /* for all basic blocks */
2875
2876         dseg_createlinenumbertable(cd);
2877
2878
2879         /* generate traps */
2880
2881         emit_patcher_traps(jd);
2882
2883         /* everything's ok */
2884
2885         return true;
2886 }
2887
2888
2889 /* codegen_emit_stub_compiler **************************************************
2890
2891    Emits a stub routine which calls the compiler.
2892
2893 *******************************************************************************/
2894
2895 void codegen_emit_stub_compiler(jitdata *jd)
2896 {
2897         methodinfo  *m;
2898         codegendata *cd;
2899
2900         /* get required compiler data */
2901
2902         m  = jd->m;
2903         cd = jd->cd;
2904
2905         /* code for the stub */
2906
2907         M_LDR_INTERN(REG_ITMP1, REG_PC, -(2 * 4 + 2 * SIZEOF_VOID_P));
2908         M_LDR_INTERN(REG_PC, REG_PC, -(3 * 4 + 3 * SIZEOF_VOID_P));
2909 }
2910
2911
2912 /* codegen_emit_stub_builtin ***************************************************
2913
2914    Emits a stub routine which calls a builtin function.
2915
2916 *******************************************************************************/
2917
2918 void codegen_emit_stub_builtin(jitdata *jd, builtintable_entry *bte)
2919 {
2920         codeinfo    *code;
2921         codegendata *cd;
2922         methoddesc  *md;
2923         s4           i;
2924         s4           disp;
2925         s4           s1;
2926
2927         /* get required compiler data */
2928
2929         code = jd->code;
2930         cd   = jd->cd;
2931
2932         /* set some variables */
2933
2934         md = bte->md;
2935
2936         /* calculate stack frame size */
2937
2938         cd->stackframesize =
2939                 SIZEOF_VOID_P +                                    /* return address  */
2940                 sizeof(stackframeinfo);                            /* stackframeinfo  */
2941
2942         /* align stack to 8-byte */
2943
2944         cd->stackframesize = (cd->stackframesize + 4) & ~4;
2945
2946         /* create method header */
2947
2948         (void) dseg_add_unique_address(cd, code);              /* CodeinfoPointer */
2949         (void) dseg_add_unique_s4(cd, cd->stackframesize);     /* FrameSize       */
2950         (void) dseg_add_unique_s4(cd, 0);                      /* IsSync          */
2951         (void) dseg_add_unique_s4(cd, 0);                      /* IsLeaf          */
2952         (void) dseg_add_unique_s4(cd, 0);                      /* IntSave         */
2953         (void) dseg_add_unique_s4(cd, 0);                      /* FltSave         */
2954         (void) dseg_addlinenumbertablesize(cd);
2955         (void) dseg_add_unique_s4(cd, 0);                      /* ExTableSize     */
2956
2957         /* generate stub code */
2958
2959         M_SUB_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - 1);
2960         M_STMFD(1<<REG_LR, REG_SP);
2961
2962 #if defined(ENABLE_GC_CACAO)
2963         /* Save callee saved integer registers in stackframeinfo (GC may
2964            need to recover them during a collection). */
2965
2966         disp = cd->stackframesize - sizeof(stackframeinfo) +
2967                 OFFSET(stackframeinfo, intregs);
2968
2969         for (i = 0; i < INT_SAV_CNT; i++)
2970                 M_STR_INTERN(abi_registers_integer_saved[i], REG_SP, disp + i * 4);
2971 #endif
2972
2973         /* Save integer and float argument registers (these are 4
2974            registers, stack is 8-byte aligned). */
2975
2976         M_STMFD(BITMASK_ARGS, REG_SP);
2977
2978         /* create builtin stackframe info */
2979
2980         assert(IS_IMM(4*4 + cd->stackframesize));
2981         M_ADD_IMM(REG_A0, REG_SP, 4*4 + cd->stackframesize);
2982         M_MOV(REG_A1, REG_PV);
2983         M_ADD_IMM(REG_A2, REG_SP, 4*4 + cd->stackframesize);
2984         M_LDR_INTERN(REG_A3, REG_SP, 4*4);
2985         disp = dseg_add_functionptr(cd, codegen_stub_builtin_enter);
2986         M_DSEG_BRANCH(disp);
2987
2988         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2989         M_RECOMPUTE_PV(s1);
2990
2991         /* Restore integer and float argument registers (these are 4
2992            registers, stack is 8-byte aligned). */
2993
2994         M_LDMFD(BITMASK_ARGS, REG_SP);
2995
2996         /* builtins are allowed to have 4 arguments max */
2997
2998         assert(md->paramcount <= 4);
2999         for (i = 0; i < md->paramcount; i++) {
3000                 assert(!IS_2_WORD_TYPE(md->paramtypes[i].type));
3001         }
3002
3003         /* call the builtin function */
3004
3005         disp = dseg_add_functionptr(cd, bte->fp);
3006         M_DSEG_BRANCH(disp);
3007
3008         /* recompute pv */
3009
3010         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3011         M_RECOMPUTE_PV(s1);
3012
3013         /* save return value */
3014
3015         assert(!IS_FLT_DBL_TYPE(md->returntype.type));
3016         M_STMFD(BITMASK_RESULT, REG_SP);
3017
3018         /* remove builtin stackframe info */
3019
3020         M_ADD_IMM(REG_A0, REG_SP, 2*4 + cd->stackframesize);
3021         disp = dseg_add_functionptr(cd, codegen_stub_builtin_exit);
3022         M_DSEG_BRANCH(disp);
3023         /*s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3024         M_RECOMPUTE_PV(s1);*/
3025
3026         /* restore return value */
3027
3028         M_LDMFD(BITMASK_RESULT, REG_SP);
3029
3030 #if defined(ENABLE_GC_CACAO)
3031         /* Restore callee saved integer registers from stackframeinfo (GC
3032            might have modified them during a collection). */
3033
3034         disp = cd->stackframesize - sizeof(stackframeinfo) +
3035                 OFFSET(stackframeinfo, intregs);
3036
3037         for (i = 0; i < INT_SAV_CNT; i++)
3038                 M_LDR_INTERN(abi_registers_integer_saved[i], REG_SP, disp + i * 4);
3039 #endif
3040
3041         /* remove stackframe and return */
3042
3043         M_LDMFD(1<<REG_LR, REG_SP);
3044         M_ADD_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - 1);
3045         M_MOV(REG_PC, REG_LR);
3046 }
3047
3048
3049 /* codegen_emit_stub_native ****************************************************
3050
3051    Emits a stub routine which calls a native method.
3052
3053 *******************************************************************************/
3054
3055 void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f)
3056 {
3057         methodinfo  *m;
3058         codeinfo    *code;
3059         codegendata *cd;
3060         s4           nativeparams;
3061         methoddesc  *md;
3062         s4           i, j;
3063         s4           t;
3064         s4           disp, funcdisp, s1, s2;
3065
3066         /* get required compiler data */
3067
3068         m    = jd->m;
3069         code = jd->code;
3070         cd   = jd->cd;
3071
3072         /* initialize variables */
3073
3074         md = m->parseddesc;
3075         nativeparams = (m->flags & ACC_STATIC) ? 2 : 1;
3076
3077         /* calculate stackframe size */
3078
3079         cd->stackframesize =
3080                 4 +                                                /* return address  */
3081                 sizeof(stackframeinfo) +                           /* stackframeinfo  */
3082                 sizeof(localref_table) +                           /* localref_table  */
3083                 nmd->memuse * 4;                                   /* stack arguments */
3084
3085         /* align stack to 8-byte */
3086
3087         cd->stackframesize = (cd->stackframesize + 4) & ~4;
3088
3089         /* create method header */
3090
3091         (void) dseg_add_unique_address(cd, code);              /* CodeinfoPointer */
3092         (void) dseg_add_unique_s4(cd, cd->stackframesize);     /* FrameSize       */
3093         (void) dseg_add_unique_s4(cd, 0);                      /* IsSync          */
3094         (void) dseg_add_unique_s4(cd, 0);                      /* IsLeaf          */
3095         (void) dseg_add_unique_s4(cd, 0);                      /* IntSave         */
3096         (void) dseg_add_unique_s4(cd, 0);                      /* FltSave         */
3097         (void) dseg_addlinenumbertablesize(cd);
3098         (void) dseg_add_unique_s4(cd, 0);                      /* ExTableSize     */
3099
3100         /* generate stub code */
3101
3102         M_STMFD(1<<REG_LR, REG_SP);
3103         M_SUB_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - 1);
3104
3105 #if !defined(NDEBUG)
3106         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
3107                 emit_verbosecall_enter(jd);
3108 #endif
3109
3110         /* get function address (this must happen before the stackframeinfo) */
3111
3112         funcdisp = dseg_add_functionptr(cd, f);
3113
3114 #if !defined(WITH_STATIC_CLASSPATH)
3115         if (f == NULL) {
3116                 patcher_add_patch_ref(jd, PATCHER_resolve_native_function, m, funcdisp);
3117
3118                 if (opt_showdisassemble)
3119                         M_NOP;
3120         }
3121 #endif
3122
3123 #if defined(ENABLE_GC_CACAO)
3124         /* Save callee saved integer registers in stackframeinfo (GC may
3125            need to recover them during a collection). */
3126
3127         disp = cd->stackframesize - SIZEOF_VOID_P - sizeof(stackframeinfo) +
3128                 OFFSET(stackframeinfo, intregs);
3129
3130         for (i = 0; i < INT_SAV_CNT; i++)
3131                 M_STR_INTERN(abi_registers_integer_saved[i], REG_SP, disp + i * 4);
3132 #endif
3133
3134         /* Save integer and float argument registers (these are 4
3135            registers, stack is 8-byte aligned). */
3136
3137         M_STMFD(BITMASK_ARGS, REG_SP);
3138         /* TODO: floating point */
3139
3140         /* create native stackframe info */
3141
3142         assert(IS_IMM(4*4 + cd->stackframesize));
3143         M_ADD_IMM(REG_A0, REG_SP, 4*4 + cd->stackframesize - SIZEOF_VOID_P);
3144         M_MOV(REG_A1, REG_PV);
3145         M_ADD_IMM(REG_A2, REG_SP, 4*4 + cd->stackframesize);
3146         M_LDR_INTERN(REG_A3, REG_SP, 4*4 + cd->stackframesize - SIZEOF_VOID_P);
3147         disp = dseg_add_functionptr(cd, codegen_start_native_call);
3148         M_DSEG_BRANCH(disp);
3149
3150         /* recompute pv */
3151
3152         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3153         M_RECOMPUTE_PV(s1);
3154
3155         /* Restore integer and float argument registers (these are 4
3156            registers, stack is 8-byte aligned). */
3157
3158         M_LDMFD(BITMASK_ARGS, REG_SP);
3159         /* TODO: floating point */
3160
3161         /* copy or spill arguments to new locations */
3162         /* ATTENTION: the ARM has only integer argument registers! */
3163
3164         for (i = md->paramcount - 1, j = i + nativeparams; i >= 0; i--, j--) {
3165                 t = md->paramtypes[i].type;
3166
3167                 if (!md->params[i].inmemory) {
3168                         s1 = md->params[i].regoff;
3169                         s2 = nmd->params[j].regoff;
3170
3171                         if (!nmd->params[j].inmemory) {
3172 #if !defined(__ARM_EABI__)
3173                                 SPLIT_OPEN(t, s2, REG_ITMP1);
3174 #endif
3175
3176                                 if (IS_2_WORD_TYPE(t))
3177                                         M_LNGMOVE(s1, s2);
3178                                 else
3179                                         M_INTMOVE(s1, s2);
3180
3181 #if !defined(__ARM_EABI__)
3182                                 SPLIT_STORE_AND_CLOSE(t, s2, 0);
3183 #endif
3184                         }
3185                         else {
3186                                 if (IS_2_WORD_TYPE(t))
3187                                         M_LST(s1, REG_SP, s2);
3188                                 else
3189                                         M_IST(s1, REG_SP, s2);
3190                         }
3191                 }
3192                 else {
3193                         s1 = md->params[i].regoff + cd->stackframesize;
3194                         s2 = nmd->params[j].regoff;
3195
3196                         if (IS_2_WORD_TYPE(t)) {
3197                                 M_LLD(REG_ITMP12_PACKED, REG_SP, s1);
3198                                 M_LST(REG_ITMP12_PACKED, REG_SP, s2);
3199                         }
3200                         else {
3201                                 M_ILD(REG_ITMP1, REG_SP, s1);
3202                                 M_IST(REG_ITMP1, REG_SP, s2);
3203                         }
3204                 }
3205         }
3206
3207         /* put class into second argument register */
3208
3209         if (m->flags & ACC_STATIC) {
3210                 disp = dseg_add_address(cd, m->class);
3211                 M_DSEG_LOAD(REG_A1, disp);
3212         }
3213
3214         /* put env into first argument register */
3215
3216         disp = dseg_add_address(cd, _Jv_env);
3217         M_DSEG_LOAD(REG_A0, disp);
3218
3219         /* do the native function call */
3220
3221         M_DSEG_BRANCH(funcdisp);
3222
3223         /* recompute pv */
3224         /* TODO: this is only needed because of the tracer ... do we
3225            really need it? */
3226
3227         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3228         M_RECOMPUTE_PV(s1);
3229
3230 #if !defined(__SOFTFP__)
3231         /* TODO: this is only a hack, since we use R0/R1 for float return! */
3232         /* this depends on gcc; it is independent from our ENABLE_SOFTFLOAT define */
3233         if (md->returntype.type != TYPE_VOID && IS_FLT_DBL_TYPE(md->returntype.type)) {
3234 #if 0 && !defined(NDEBUG)
3235                 dolog("NATIVESTUB that returns float or double (%s.%s)", m->class->name->text, m->name->text);
3236 #endif
3237                 /* we cannot use this macro, since it is not defined in ENABLE_SOFTFLOAT */
3238                 /* M_CAST_FLT_TO_INT_TYPED(md->returntype.type, REG_FRESULT, REG_RESULT_TYPED(md->returntype.type)); */
3239                 if (IS_2_WORD_TYPE(md->returntype.type)) {
3240                         DCD(0xed2d8102); /* stfd    f0, [sp, #-8]! */
3241                         M_LDRD_UPDATE(REG_RESULT_PACKED, REG_SP, 8);
3242                 } else {
3243                         DCD(0xed2d0101); /* stfs    f0, [sp, #-4]!*/
3244                         M_LDR_UPDATE(REG_RESULT, REG_SP, 4);
3245                 }
3246         }
3247 #endif
3248
3249 #if !defined(NDEBUG)
3250         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
3251                 emit_verbosecall_exit(jd);
3252 #endif
3253
3254         /* remove native stackframe info */
3255         /* TODO: improve this store/load */
3256
3257         M_STMFD(BITMASK_RESULT, REG_SP);
3258
3259         M_ADD_IMM(REG_A0, REG_SP, 2*4 + cd->stackframesize - SIZEOF_VOID_P);
3260         disp = dseg_add_functionptr(cd, codegen_finish_native_call);
3261         M_DSEG_BRANCH(disp);
3262         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3263         M_RECOMPUTE_PV(s1);
3264
3265         M_MOV(REG_ITMP1_XPTR, REG_RESULT);
3266         M_LDMFD(BITMASK_RESULT, REG_SP);
3267
3268 #if defined(ENABLE_GC_CACAO)
3269         /* restore callee saved int registers from stackframeinfo (GC might have  */
3270         /* modified them during a collection).                                    */
3271
3272         disp = cd->stackframesize - SIZEOF_VOID_P - sizeof(stackframeinfo) +
3273                 OFFSET(stackframeinfo, intregs);
3274
3275         for (i = 0; i < INT_SAV_CNT; i++)
3276                 M_LDR_INTERN(abi_registers_integer_saved[i], REG_SP, disp + i * 4);
3277 #endif
3278
3279         /* finish stub code, but do not yet return to caller */
3280
3281         M_ADD_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - 1);
3282         M_LDMFD(1<<REG_LR, REG_SP);
3283
3284         /* check for exception */
3285
3286         M_TST(REG_ITMP1_XPTR, REG_ITMP1_XPTR);
3287         M_MOVEQ(REG_LR, REG_PC);            /* if no exception, return to caller  */
3288
3289         /* handle exception here */
3290
3291         M_SUB_IMM(REG_ITMP2_XPC, REG_LR, 4);/* move fault address into xpc        */
3292
3293         disp = dseg_add_functionptr(cd, asm_handle_nat_exception);
3294         M_DSEG_LOAD(REG_ITMP3, disp);       /* load asm exception handler address */
3295         M_MOV(REG_PC, REG_ITMP3);           /* jump to asm exception handler      */
3296
3297         /* generate patcher stubs */
3298
3299         emit_patcher_traps(jd);
3300 }
3301
3302
3303 /* asm_debug *******************************************************************
3304
3305    Lazy debugger!
3306
3307 *******************************************************************************/
3308
3309 void asm_debug(int a1, int a2, int a3, int a4)
3310 {
3311         printf("===> i am going to exit after this debugging message!\n");
3312         printf("got asm_debug(%p, %p, %p, %p)\n",(void*)a1,(void*)a2,(void*)a3,(void*)a4);
3313         vm_abort("leave you now");
3314 }
3315
3316
3317 /*
3318  * These are local overrides for various environment variables in Emacs.
3319  * Please do not remove this and leave it at the end of the file, where
3320  * Emacs will automagically detect them.
3321  * ---------------------------------------------------------------------
3322  * Local variables:
3323  * mode: c
3324  * indent-tabs-mode: t
3325  * c-basic-offset: 4
3326  * tab-width: 4
3327  * End:
3328  * vim:noexpandtab:sw=4:ts=4:
3329  */