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 8127 2007-06-21 11:55:56Z 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/native.h"
  45
  46 #include "threads/lock-common.h"
  47
  48 #include "vm/builtin.h"
  49 #include "vm/exceptions.h"
  50 #include "vm/global.h"
  51 #include "vm/vm.h"
  52
  53 #include "vm/jit/asmpart.h"
  54 #include "vm/jit/codegen-common.h"
  55 #include "vm/jit/dseg.h"
  56 #include "vm/jit/emit-common.h"
  57 #include "vm/jit/jit.h"
  58 #include "vm/jit/md.h"
  59 #include "vm/jit/methodheader.h"
  60 #include "vm/jit/parse.h"
  61 #include "vm/jit/patcher.h"
  62 #include "vm/jit/reg.h"
  63
  64 #if defined(ENABLE_LSRA)
  65 #include "vm/jit/allocator/lsra.h"
  66 #endif
  67
  68 #include "vmcore/loader.h"
  69 #include "vmcore/options.h"
  70
  71
  72 /* codegen_emit ****************************************************************
  73
  74    Generates machine code.
  75
  76 *******************************************************************************/
  77
  78 bool codegen_emit(jitdata *jd)
  79 {
  80         methodinfo         *m;
  81         codeinfo           *code;
  82         codegendata        *cd;
  83         registerdata       *rd;
  84         s4              i, t, len;
  85         s4              s1, s2, s3, d;
  86         s4              disp;
  87         varinfo        *var;
  88         basicblock     *bptr;
  89         instruction    *iptr;
  90         exception_entry *ex;
  91         s4              fieldtype;
  92         s4              varindex;
  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
 104         /* get required compiler data */
 105
 106         m    = jd->m;
 107         code = jd->code;
 108         cd   = jd->cd;
 109         rd   = jd->rd;
 110
 111         /* prevent compiler warnings */
 112
 113         lm  = NULL;
 114         um  = NULL;
 115         bte = NULL;
 116
 117         fieldtype = -1;
 118
 119         /* space to save used callee saved registers */
 120
 121         savedregs_num = (jd->isleafmethod) ? 0 : 1;       /* space to save the LR */
 122         savedregs_num += (INT_SAV_CNT - rd->savintreguse);
 123         /*savedregs_num += (FLT_SAV_CNT - rd->savfltreguse);*/
 124         assert((FLT_SAV_CNT - rd->savfltreguse) == 0);
 125
 126         spilledregs_num = rd->memuse;
 127
 128 #if defined(ENABLE_THREADS)        /* space to save argument of monitor_enter */
 129         if (checksync && (m->flags & ACC_SYNCHRONIZED))
 130                 spilledregs_num++;
 131 #endif
 132
 133         cd->stackframesize = spilledregs_num * 8 + savedregs_num * 4;
 134
 135         /* XXX QUICK FIX: We shouldn't align the stack in Java code, but
 136            only in native stubs. */
 137         /* align stack to 8-byte */
 138
 139         cd->stackframesize = (cd->stackframesize + 4) & ~4;
 140
 141         /* SECTION: Method Header */
 142         /* create method header */
 143
 144         (void) dseg_add_unique_address(cd, code);              /* CodeinfoPointer */
 145         (void) dseg_add_unique_s4(cd, cd->stackframesize);     /* FrameSize       */
 146
 147 #if defined(ENABLE_THREADS)
 148         /* IsSync contains the offset relative to the stack pointer for the
 149            argument of monitor_exit used in the exception handler. Since the
 150            offset could be zero and give a wrong meaning of the flag it is
 151            offset by one.
 152         */
 153
 154         if (checksync && (m->flags & ACC_SYNCHRONIZED))
 155                 (void) dseg_add_unique_s4(cd, rd->memuse * 8 + 4);/* IsSync         */
 156         else
 157 #endif
 158                 (void) dseg_add_unique_s4(cd, 0);                  /* IsSync          */
 159
 160         (void) dseg_add_unique_s4(cd, jd->isleafmethod);       /* IsLeaf          */
 161         (void) dseg_add_unique_s4(cd, INT_SAV_CNT - rd->savintreguse); /* IntSave */
 162         (void) dseg_add_unique_s4(cd, FLT_SAV_CNT - rd->savfltreguse); /* FltSave */
 163         (void) dseg_addlinenumbertablesize(cd);
 164         (void) dseg_add_unique_s4(cd, jd->exceptiontablelength); /* ExTableSize   */
 165
 166         /* create exception table */
 167
 168         for (ex = jd->exceptiontable; ex != NULL; ex = ex->down) {
 169                 dseg_add_target(cd, ex->start);
 170                 dseg_add_target(cd, ex->end);
 171                 dseg_add_target(cd, ex->handler);
 172                 (void) dseg_add_unique_address(cd, ex->catchtype.any);
 173         }
 174
 175         /* save return address and used callee saved registers */
 176
 177         savedregs_bitmask = 0;
 178
 179         if (!jd->isleafmethod)
 180                 savedregs_bitmask = (1<<REG_LR);
 181
 182         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--)
 183                 savedregs_bitmask |= (1<<(rd->savintregs[i]));
 184
 185 #if !defined(NDEBUG)
 186         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
 187                 log_text("!!! CODEGEN: floating-point callee saved registers are not saved to stack (SEVERE! STACK IS MESSED UP!)");
 188                 /* TODO: floating-point */
 189         }
 190 #endif
 191
 192         if (savedregs_bitmask)
 193                 M_STMFD(savedregs_bitmask, REG_SP);
 194
 195         /* create additional stack frame for spilled variables (if necessary) */
 196
 197         if ((cd->stackframesize / 4 - savedregs_num) > 0)
 198                 M_SUB_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - savedregs_num);
 199
 200         /* take arguments out of register or stack frame */
 201
 202         md = m->parseddesc;
 203         for (i = 0, len = 0; i < md->paramcount; i++) {
 204                 s1 = md->params[i].regoff;
 205                 t = md->paramtypes[i].type;
 206
 207                 varindex = jd->local_map[len * 5 + t];
 208
 209                 len += (IS_2_WORD_TYPE(t)) ? 2 : 1;          /* 2 word type arguments */
 210
 211                 if (varindex == UNUSED)
 212                         continue;
 213
 214                 var = VAR(varindex);
 215
 216                 /* ATTENTION: we use interger registers for all arguments (even float) */
 217 #if !defined(ENABLE_SOFTFLOAT)
 218                 if (IS_INT_LNG_TYPE(t)) {
 219 #endif
 220                         if (!md->params[i].inmemory) {
 221                                 if (!(var->flags & INMEMORY)) {
 222                                         if (IS_2_WORD_TYPE(t))
 223                                                 M_LNGMOVE(s1, var->vv.regoff);
 224                                         else
 225                                                 M_INTMOVE(s1, var->vv.regoff);
 226                                 }
 227                                 else {
 228                                         if (IS_2_WORD_TYPE(t))
 229                                                 M_LST(s1, REG_SP, var->vv.regoff);
 230                                         else
 231                                                 M_IST(s1, REG_SP, var->vv.regoff);
 232                                 }
 233                         }
 234                         else {                                   /* stack arguments       */
 235                                 if (!(var->flags & INMEMORY)) {      /* stack arg -> register */
 236                                         if (IS_2_WORD_TYPE(t))
 237                                                 M_LLD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 238                                         else
 239                                                 M_ILD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 240                                 }
 241                                 else {                               /* stack arg -> spilled  */
 242                                         /* Reuse Memory Position on Caller Stack */
 243                                         var->vv.regoff = cd->stackframesize + s1;
 244                                 }
 245                         }
 246 #if !defined(ENABLE_SOFTFLOAT)
 247                 }
 248                 else {
 249                         if (!md->params[i].inmemory) {
 250                                 if (!(var->flags & INMEMORY)) {
 251                                         M_CAST_INT_TO_FLT_TYPED(t, s1, var->vv.regoff);
 252                                 }
 253                                 else {
 254                                         if (IS_2_WORD_TYPE(t))
 255                                                 M_LST(s1, REG_SP, var->vv.regoff);
 256                                         else
 257                                                 M_IST(s1, REG_SP, var->vv.regoff);
 258                                 }
 259                         }
 260                         else {
 261                                 if (!(var->flags & INMEMORY)) {
 262                                         if (IS_2_WORD_TYPE(t))
 263                                                 M_DLD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 264                                         else
 265                                                 M_FLD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 266                                 }
 267                                 else {
 268                                         /* Reuse Memory Position on Caller Stack */
 269                                         var->vv.regoff = cd->stackframesize + s1;
 270                                 }
 271                         }
 272                 }
 273 #endif /* !defined(ENABLE_SOFTFLOAT) */
 274         }
 275
 276 #if defined(ENABLE_THREADS)
 277         /* call monitorenter function */
 278
 279         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
 280                 /* stack offset for monitor argument */
 281
 282                 s1 = rd->memuse * 8;
 283
 284 # if !defined(NDEBUG)
 285                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 286                         M_STMFD(BITMASK_ARGS, REG_SP);
 287                         s1 += 4 * 4;
 288                 }
 289 # endif
 290
 291                 /* get the correct lock object */
 292
 293                 if (m->flags & ACC_STATIC) {
 294                         disp = dseg_add_address(cd, &m->class->object.header);
 295                         M_DSEG_LOAD(REG_A0, disp);
 296                 }
 297                 else {
 298                         emit_nullpointer_check_force(cd, iptr, REG_A0);
 299                 }
 300
 301                 M_STR(REG_A0, REG_SP, s1);
 302                 disp = dseg_add_functionptr(cd, LOCK_monitor_enter);
 303                 M_DSEG_BRANCH(disp);
 304                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
 305                 M_RECOMPUTE_PV(s1);
 306
 307 # if !defined(NDEBUG)
 308                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
 309                         M_LDMFD(BITMASK_ARGS, REG_SP);
 310 # endif
 311         }
 312 #endif
 313
 314 #if !defined(NDEBUG)
 315         /* call trace function */
 316
 317         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
 318                 emit_verbosecall_enter(jd);
 319 #endif
 320
 321         /* end of header generation */
 322
 323         /* SECTION: ICMD Code Generation */
 324         /* for all basic blocks */
 325
 326         for (bptr = jd->basicblocks; bptr != NULL; bptr = bptr->next) {
 327
 328                 bptr->mpc = (s4) (cd->mcodeptr - cd->mcodebase);
 329
 330                 /* is this basic block reached? */
 331
 332                 if (bptr->flags < BBREACHED)
 333                         continue;
 334
 335                 /* branch resolving */
 336
 337                 codegen_resolve_branchrefs(cd, bptr);
 338
 339                 /* copy interface registers to their destination */
 340
 341                 len = bptr->indepth;
 342
 343                 MCODECHECK(64+len);
 344
 345 #if defined(ENABLE_LSRA)
 346                 if (opt_lsra) {
 347                 while (len) {
 348                         len--;
 349                         var = VAR(bptr->invars[len]);
 350                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 351                                 if (!(var->flags & INMEMORY))
 352                                         d= var->vv.regoff;
 353                                 else
 354                                         d=REG_ITMP1;
 355                                 M_INTMOVE(REG_ITMP1, d);
 356                                 emit_store(jd, NULL, var, d);
 357                         }
 358                 }
 359                 } else {
 360 #endif
 361                 while (len) {
 362                         len--;
 363                         var = VAR(bptr->invars[len]);
 364
 365                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 366                                 d = codegen_reg_of_var(0, var, REG_ITMP1);
 367                                 M_INTMOVE(REG_ITMP1, d);
 368                                 emit_store(jd, NULL, var, d);
 369                         }
 370                         else {
 371                                 assert((var->flags & INOUT));
 372                         }
 373                 }
 374 #if defined(ENABLE_LSRA)
 375                 }
 376 #endif
 377
 378                 /* for all instructions */
 379                 len = bptr->icount;
 380                 currentline = 0;
 381                 for (iptr = bptr->iinstr; len > 0; len--, iptr++) {
 382
 383                         /* add line number */
 384                         if (iptr->line != currentline) {
 385                                 dseg_addlinenumber(cd, iptr->line);
 386                                 currentline = iptr->line;
 387                         }
 388
 389                         MCODECHECK(64);   /* an instruction usually needs < 64 words      */
 390
 391                         /* the big switch */
 392                         switch (iptr->opc) {
 393                 case ICMD_NOP:        /* ... ==> ...                                  */
 394                         break;
 395
 396         /* constant operations ************************************************/
 397
 398                 case ICMD_ICONST:     /* ...  ==> ..., constant                       */
 399
 400                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 401                         ICONST(d, iptr->sx.val.i);
 402                         emit_store_dst(jd, iptr, d);
 403                         break;
 404
 405                 case ICMD_ACONST:     /* ... ==> ..., constant                        */
 406
 407                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 408                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
 409                                 disp = dseg_add_unique_address(cd, NULL);
 410
 411                                 codegen_addpatchref(cd, PATCHER_aconst,
 412                                                     iptr->sx.val.c.ref,
 413                                                                         disp);
 414
 415                                 if (opt_showdisassemble)
 416                                         M_NOP;
 417
 418                                 M_DSEG_LOAD(d, disp);
 419                         }
 420                         else {
 421                                 ICONST(d, (u4) iptr->sx.val.anyptr);
 422                         }
 423                         emit_store_dst(jd, iptr, d);
 424                         break;
 425
 426                 case ICMD_LCONST:     /* ...  ==> ..., constant                       */
 427
 428                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 429                         LCONST(d, iptr->sx.val.l);
 430                         emit_store_dst(jd, iptr, d);
 431                         break;
 432
 433                 case ICMD_FCONST:     /* ...  ==> ..., constant                       */
 434
 435 #if defined(ENABLE_SOFTFLOAT)
 436                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 437                         ICONST(d, iptr->sx.val.i);
 438                         emit_store_dst(jd, iptr, d);
 439 #else
 440                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 441                         FCONST(d, iptr->sx.val.f);
 442                         emit_store_dst(jd, iptr, d);
 443 #endif
 444                         break;
 445
 446                 case ICMD_DCONST:     /* ...  ==> ..., constant                       */
 447
 448 #if defined(ENABLE_SOFTFLOAT)
 449                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 450                         LCONST(d, iptr->sx.val.l);
 451                         emit_store_dst(jd, iptr, d);
 452 #else
 453                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 454                         DCONST(d, iptr->sx.val.d);
 455                         emit_store_dst(jd, iptr, d);
 456 #endif
 457                         break;
 458
 459
 460                 /* load/store/copy/move operations ************************************/
 461
 462                 case ICMD_ILOAD:      /* ...  ==> ..., content of local variable      */
 463                 case ICMD_ALOAD:      /* op1 = local variable                         */
 464                 case ICMD_FLOAD:
 465                 case ICMD_LLOAD:
 466                 case ICMD_DLOAD:
 467                 case ICMD_ISTORE:     /* ..., value  ==> ...                          */
 468                 case ICMD_FSTORE:
 469                 case ICMD_LSTORE:
 470                 case ICMD_DSTORE:
 471                 case ICMD_COPY:
 472                 case ICMD_MOVE:
 473
 474                         emit_copy(jd, iptr);
 475                         break;
 476
 477                 case ICMD_ASTORE:
 478                         if (!(iptr->flags.bits & INS_FLAG_RETADDR))
 479                                 emit_copy(jd, iptr);
 480                         break;
 481
 482                 /* pop operations *****************************************************/
 483
 484                 /* attention: double and longs are only one entry in CACAO ICMDs      */
 485
 486                 case ICMD_POP:        /* ..., value  ==> ...                          */
 487                 case ICMD_POP2:       /* ..., value, value  ==> ...                   */
 488
 489                         break;
 490
 491
 492                 /* integer operations *************************************************/
 493
 494                 case ICMD_INT2BYTE:   /* ..., value  ==> ..., value                   */
 495
 496                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 497                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 498                         M_MOV(d, REG_LSL(s1, 24));
 499                         M_MOV(d, REG_ASR(d, 24));
 500                         emit_store_dst(jd, iptr, d);
 501                         break;
 502
 503                 case ICMD_INT2CHAR:   /* ..., 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, 16));
 508                         M_MOV(d, REG_LSR(d, 16)); /* ATTENTION: char is unsigned */
 509                         emit_store_dst(jd, iptr, d);
 510                         break;
 511
 512                 case ICMD_INT2SHORT:  /* ..., 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_ASR(d, 16));
 518                         emit_store_dst(jd, iptr, d);
 519                         break;
 520
 521                 case ICMD_I2L:        /* ..., value  ==> ..., value                   */
 522
 523                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 524                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 525                         M_INTMOVE(s1, GET_LOW_REG(d));
 526                         M_MOV(GET_HIGH_REG(d), REG_ASR(s1, 31));
 527                         emit_store_dst(jd, iptr, d);
 528                         break;
 529
 530                 case ICMD_L2I:        /* ..., value  ==> ..., value                   */
 531
 532                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 533                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 534                         M_INTMOVE(s1, d);
 535                         emit_store_dst(jd, iptr, d);
 536                         break;
 537
 538                 case ICMD_INEG:       /* ..., value  ==> ..., - value                 */
 539
 540                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 541                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 542                         M_RSB_IMM(d, s1, 0);
 543                         emit_store_dst(jd, iptr, d);
 544                         break;
 545
 546                 case ICMD_LNEG:       /* ..., value  ==> ..., - value                 */
 547
 548                         s1 = emit_load_s1(jd, iptr, REG_ITMP12_PACKED);
 549                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 550                         M_RSB_IMMS(GET_LOW_REG(d), GET_LOW_REG(s1), 0);
 551                         M_RSC_IMM(GET_HIGH_REG(d), GET_HIGH_REG(s1), 0);
 552                         emit_store_dst(jd, iptr, d);
 553                         break;
 554
 555                 case ICMD_IADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 556
 557                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 558                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 559                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 560                         M_ADD(d, s1, s2);
 561                         emit_store_dst(jd, iptr, d);
 562                         break;
 563
 564                 case ICMD_LADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 565
 566                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 567                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 568                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 569                         M_ADD_S(GET_LOW_REG(d), s1, s2);
 570                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 571                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 572                         M_ADC(GET_HIGH_REG(d), s1, s2);
 573                         emit_store_dst(jd, iptr, d);
 574                         break;
 575
 576                 case ICMD_IADDCONST:
 577                 case ICMD_IINC:
 578
 579                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 580                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 581
 582                         if (IS_IMM(iptr->sx.val.i)) {
 583                                 M_ADD_IMM(d, s1, iptr->sx.val.i);
 584                         } else if (IS_IMM(-iptr->sx.val.i)) {
 585                                 M_SUB_IMM(d, s1, (-iptr->sx.val.i));
 586                         } else {
 587                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 588                                 M_ADD(d, s1, REG_ITMP3);
 589                         }
 590
 591                         emit_store_dst(jd, iptr, d);
 592                         break;
 593
 594                 case ICMD_LADDCONST:  /* ..., value  ==> ..., value + constant        */
 595                                       /* sx.val.l = constant                          */
 596
 597                         s3 = iptr->sx.val.l & 0xffffffff;
 598                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 599                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 600                         if (IS_IMM(s3))
 601                                 M_ADD_IMMS(GET_LOW_REG(d), s1, s3);
 602                         else {
 603                                 ICONST(REG_ITMP3, s3);
 604                                 M_ADD_S(GET_LOW_REG(d), s1, REG_ITMP3);
 605                         }
 606                         s3 = iptr->sx.val.l >> 32;
 607                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP2);
 608                         if (IS_IMM(s3))
 609                                 M_ADC_IMM(GET_HIGH_REG(d), s1, s3);
 610                         else {
 611                                 ICONST(REG_ITMP3, s3);
 612                                 M_ADC(GET_HIGH_REG(d), s1, REG_ITMP3);
 613                         }
 614                         emit_store_dst(jd, iptr, d);
 615                         break;
 616
 617                 case ICMD_ISUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 618
 619                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 620                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 621                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 622                         M_SUB(d, s1, s2);
 623                         emit_store_dst(jd, iptr, d);
 624                         break;
 625
 626                 case ICMD_LSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 627
 628                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 629                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 630                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 631                         M_SUB_S(GET_LOW_REG(d), s1, s2);
 632                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 633                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 634                         M_SBC(GET_HIGH_REG(d), s1, s2);
 635                         emit_store_dst(jd, iptr, d);
 636                         break;
 637
 638                 case ICMD_ISUBCONST:  /* ..., value  ==> ..., value + constant        */
 639                                       /* sx.val.i = constant                          */
 640
 641                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 642                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 643                         if (IS_IMM(iptr->sx.val.i))
 644                                 M_SUB_IMM(d, s1, iptr->sx.val.i);
 645                         else {
 646                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 647                                 M_SUB(d, s1, REG_ITMP3);
 648                         }
 649                         emit_store_dst(jd, iptr, d);
 650                         break;
 651
 652                 case ICMD_LSUBCONST:  /* ..., value  ==> ..., value - constant        */
 653                                       /* sx.val.l = constant                          */
 654
 655                         s3 = iptr->sx.val.l & 0xffffffff;
 656                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 657                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 658                         if (IS_IMM(s3))
 659                                 M_SUB_IMMS(GET_LOW_REG(d), s1, s3);
 660                         else {
 661                                 ICONST(REG_ITMP3, s3);
 662                                 M_SUB_S(GET_LOW_REG(d), s1, REG_ITMP3);
 663                         }
 664                         s3 = iptr->sx.val.l >> 32;
 665                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP2);
 666                         if (IS_IMM(s3))
 667                                 M_SBC_IMM(GET_HIGH_REG(d), s1, s3);
 668                         else {
 669                                 ICONST(REG_ITMP3, s3);
 670                                 M_SBC(GET_HIGH_REG(d), s1, REG_ITMP3);
 671                         }
 672                         emit_store_dst(jd, iptr, d);
 673                         break;
 674
 675                 case ICMD_IMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 676
 677                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 678                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 679                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 680                         M_MUL(d, s1, s2);
 681                         emit_store_dst(jd, iptr, d);
 682                         break;
 683
 684                 case ICMD_IDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 685                 case ICMD_IREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 686
 687                         s1 = emit_load_s1(jd, iptr, REG_A0);
 688                         s2 = emit_load_s2(jd, iptr, REG_A1);
 689                         emit_arithmetic_check(cd, iptr, s2);
 690
 691                         /* move arguments into argument registers */
 692                         M_INTMOVE(s1, REG_A0);
 693                         M_INTMOVE(s2, REG_A1);
 694
 695                         /* call builtin function */
 696                         bte = iptr->sx.s23.s3.bte;
 697                         disp = dseg_add_functionptr(cd, bte->fp);
 698                         M_DSEG_BRANCH(disp);
 699
 700                         /* recompute pv */
 701                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
 702                         M_RECOMPUTE_PV(s1);
 703
 704                         /* move result into destination register */
 705                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
 706                         M_INTMOVE(REG_RESULT, d);
 707                         emit_store_dst(jd, iptr, d);
 708                         break;
 709
 710                 case ICMD_LDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 711                 case ICMD_LREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 712
 713                         /* move arguments into argument registers */
 714
 715                         s1 = emit_load_s1(jd, iptr, REG_A0_A1_PACKED);
 716                         s2 = emit_load_s2(jd, iptr, REG_A2_A3_PACKED);
 717                         /* XXX TODO: only do this if arithmetic check is really done! */
 718                         M_ORR(GET_HIGH_REG(s2), GET_LOW_REG(s2), REG_ITMP3);
 719                         emit_arithmetic_check(cd, iptr, REG_ITMP3);
 720
 721                         M_LNGMOVE(s1, REG_A0_A1_PACKED);
 722                         M_LNGMOVE(s2, REG_A2_A3_PACKED);
 723
 724                         /* call builtin function */
 725                         bte = iptr->sx.s23.s3.bte;
 726                         disp = dseg_add_functionptr(cd, bte->fp);
 727                         M_DSEG_BRANCH(disp);
 728
 729                         /* recompute pv */
 730                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
 731                         M_RECOMPUTE_PV(s1);
 732
 733                         /* move result into destination register */
 734                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
 735                         M_LNGMOVE(REG_RESULT_PACKED, d);
 736                         emit_store_dst(jd, iptr, d);
 737                         break;
 738
 739                 case ICMD_IMULPOW2:   /* ..., value  ==> ..., value * (2 ^ constant)  */
 740                                       /* sx.val.i = constant                          */
 741
 742                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 743                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 744                         M_MOV(d, REG_LSL(s1, iptr->sx.val.i));
 745                         emit_store_dst(jd, iptr, d);
 746                         break;
 747
 748                 case ICMD_IDIVPOW2:   /* ..., 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                         /* this rounds towards 0 as java likes it */
 754                         M_MOV(REG_ITMP3, REG_ASR(s1, 31));
 755                         M_ADD(REG_ITMP3, s1, REG_LSR(REG_ITMP3, 32 - iptr->sx.val.i));
 756                         M_MOV(d, REG_ASR(REG_ITMP3, iptr->sx.val.i));
 757                         /* this rounds towards nearest, not java style */
 758                         /*M_MOV_S(d, REG_ASR(s1, iptr->sx.val.i));
 759                         M_ADCMI_IMM(d, d, 0);*/
 760                         emit_store_dst(jd, iptr, d);
 761                         break;
 762
 763                 case ICMD_IREMPOW2:   /* ..., value  ==> ..., value % constant        */
 764                                       /* sx.val.i = constant [ (2 ^ x) - 1 ]          */
 765
 766                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 767                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 768                         M_MOV_S(REG_ITMP1, s1);
 769                         M_RSBMI_IMM(REG_ITMP1, REG_ITMP1, 0);
 770                         if (IS_IMM(iptr->sx.val.i))
 771                                 M_AND_IMM(REG_ITMP1, iptr->sx.val.i, d);
 772                         else {
 773                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 774                                 M_AND(REG_ITMP1, REG_ITMP3, d);
 775                         }
 776                         M_RSBMI_IMM(d, d, 0);
 777                         emit_store_dst(jd, iptr, d);
 778                         break;
 779
 780                 case ICMD_ISHL:       /* ..., val1, val2  ==> ..., val1 << val2       */
 781
 782                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 783                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 784                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 785                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 786                         M_MOV(d, REG_LSL_REG(s1, REG_ITMP2));
 787                         emit_store_dst(jd, iptr, d);
 788                         break;
 789
 790                 case ICMD_ISHR:       /* ..., val1, val2  ==> ..., val1 >> val2       */
 791
 792                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 793                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 794                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 795                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 796                         M_MOV(d, REG_ASR_REG(s1, REG_ITMP2));
 797                         emit_store_dst(jd, iptr, d);
 798                         break;
 799
 800                 case ICMD_IUSHR:      /* ..., val1, val2  ==> ..., val1 >>> val2      */
 801
 802                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 803                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 804                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 805                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 806                         M_MOV(d, REG_LSR_REG(s1, REG_ITMP2));
 807                         emit_store_dst(jd, iptr, d);
 808                         break;
 809
 810                 case ICMD_ISHLCONST:  /* ..., value  ==> ..., value << constant       */
 811                                       /* sx.val.i = constant                          */
 812
 813                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 814                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 815                         M_MOV(d, REG_LSL(s1, iptr->sx.val.i & 0x1f));
 816                         emit_store_dst(jd, iptr, d);
 817                         break;
 818
 819                 case ICMD_ISHRCONST:  /* ..., 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_ITMP1);
 824                         /* we need to check for zero here because arm interprets it as SHR by 32 */
 825                         if ((iptr->sx.val.i & 0x1f) == 0) {
 826                                 M_INTMOVE(s1, d);
 827                         } else {
 828                                 M_MOV(d, REG_ASR(s1, iptr->sx.val.i & 0x1f));
 829                         }
 830                         emit_store_dst(jd, iptr, d);
 831                         break;
 832
 833                 case ICMD_IUSHRCONST: /* ..., value  ==> ..., value >>> constant      */
 834                                       /* sx.val.i = constant                          */
 835
 836                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 837                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 838                         /* we need to check for zero here because arm interprets it as SHR by 32 */
 839                         if ((iptr->sx.val.i & 0x1f) == 0)
 840                                 M_INTMOVE(s1, d);
 841                         else
 842                                 M_MOV(d, REG_LSR(s1, iptr->sx.val.i & 0x1f));
 843                         emit_store_dst(jd, iptr, d);
 844                         break;
 845
 846                 case ICMD_IAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 847
 848                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 849                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 850                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 851                         M_AND(s1, s2, d);
 852                         emit_store_dst(jd, iptr, d);
 853                         break;
 854
 855                 case ICMD_LAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 856
 857                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 858                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 859                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 860                         M_AND(s1, s2, GET_LOW_REG(d));
 861                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 862                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 863                         M_AND(s1, s2, GET_HIGH_REG(d));
 864                         emit_store_dst(jd, iptr, d);
 865                         break;
 866
 867                 case ICMD_IOR:        /* ..., val1, val2  ==> ..., val1 | val2        */
 868
 869                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 870                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 871                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 872                         M_ORR(s1, s2, d);
 873                         emit_store_dst(jd, iptr, d);
 874                         break;
 875
 876                 case ICMD_LOR:       /* ..., val1, val2  ==> ..., val1 | val2        */
 877
 878                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 879                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 880                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 881                         M_ORR(s1, s2, GET_LOW_REG(d));
 882                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 883                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 884                         M_ORR(s1, s2, GET_HIGH_REG(d));
 885                         emit_store_dst(jd, iptr, d);
 886                         break;
 887
 888                 case ICMD_IXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
 889
 890                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 891                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 892                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 893                         M_EOR(s1, s2, d);
 894                         emit_store_dst(jd, iptr, d);
 895                         break;
 896
 897                 case ICMD_LXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
 898
 899                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 900                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 901                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 902                         M_EOR(s1, s2, GET_LOW_REG(d));
 903                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 904                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 905                         M_EOR(s1, s2, GET_HIGH_REG(d));
 906                         emit_store_dst(jd, iptr, d);
 907                         break;
 908
 909
 910         /* floating operations ************************************************/
 911
 912 #if !defined(ENABLE_SOFTFLOAT)
 913
 914                 case ICMD_FNEG:       /* ..., value  ==> ..., - value                 */
 915
 916                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 917                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 918                         M_MNFS(d, s1);
 919                         emit_store_dst(jd, iptr, d);
 920                         break;
 921
 922                 case ICMD_FADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 923
 924                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 925                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 926                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 927                         M_ADFS(d, s1, s2);
 928                         emit_store_dst(jd, iptr, d);
 929                         break;
 930
 931                 case ICMD_FSUB:       /* ..., 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_SUFS(d, s1, s2);
 937                         emit_store_dst(jd, iptr, d);
 938                         break;
 939
 940                 case ICMD_FMUL:       /* ..., 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_MUFS(d, s1, s2);
 946                         emit_store_dst(jd, iptr, d);
 947                         break;
 948
 949                 case ICMD_FDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 950                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 951                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 952                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 953                         M_DVFS(d, s1, s2);
 954                         emit_store_dst(jd, iptr, d);
 955                         break;
 956
 957                 /* ATTENTION: Jave does not want IEEE behaviour in FREM, do
 958                    not use this */
 959
 960                 case ICMD_FREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 961
 962                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 963                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 964                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 965                         M_RMFS(d, s1, s2);
 966                         emit_store_dst(jd, iptr, d);
 967                         break;
 968
 969                 case ICMD_DNEG:       /* ..., value  ==> ..., - value                 */
 970
 971                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 972                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 973                         M_MNFD(d, s1);
 974                         emit_store_dst(jd, iptr, d);
 975                         break;
 976
 977                 case ICMD_DADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 978
 979                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 980                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 981                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 982                         M_ADFD(d, s1, s2);
 983                         emit_store_dst(jd, iptr, d);
 984                         break;
 985
 986                 case ICMD_DSUB:       /* ..., 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_SUFD(d, s1, s2);
 992                         emit_store_dst(jd, iptr, d);
 993                         break;
 994
 995                 case ICMD_DMUL:       /* ..., 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_MUFD(d, s1, s2);
1001                         emit_store_dst(jd, iptr, d);
1002                         break;
1003
1004                 case ICMD_DDIV:       /* ..., 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_DVFD(d, s1, s2);
1010                         emit_store_dst(jd, iptr, d);
1011                         break;
1012
1013                 /* ATTENTION: Jave does not want IEEE behaviour in DREM, do
1014                    not use this */
1015
1016                 case ICMD_DREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
1017
1018                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1019                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1020                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1021                         M_RMFD(d, s1, s2);
1022                         emit_store_dst(jd, iptr, d);
1023                         break;
1024
1025                 case ICMD_I2F:       /* ..., value  ==> ..., (float) value            */
1026
1027                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1028                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1029                         M_FLTS(d, s1);
1030                         emit_store_dst(jd, iptr, d);
1031                         break;
1032
1033                 case ICMD_I2D:       /* ..., value  ==> ..., (double) value           */
1034
1035                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1036                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1037                         M_FLTD(d, s1);
1038                         emit_store_dst(jd, iptr, d);
1039                         break;
1040
1041                 case ICMD_F2I:       /* ..., value  ==> ..., (int) value              */
1042
1043                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1044                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1045                         /* this uses round towards zero, as Java likes it */
1046                         M_FIX(d, s1);
1047                         /* this checks for NaN; to return zero as Java likes it */
1048                         M_CMF(s1, 0x8);
1049                         M_MOVVS_IMM(0, d);
1050                         emit_store_dst(jd, iptr, d);
1051                         break;
1052
1053                 case ICMD_D2I:       /* ..., value  ==> ..., (int) value              */
1054
1055                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1056                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1057                         /* this uses round towards zero, as Java likes it */
1058                         M_FIX(d, s1);
1059                         /* this checks for NaN; to return zero as Java likes it */
1060                         M_CMF(s1, 0x8);
1061                         M_MOVVS_IMM(0, d);
1062                         emit_store_dst(jd, iptr, d);
1063                         break;
1064
1065                 case ICMD_D2F:       /* ..., value  ==> ..., (float) value            */
1066
1067                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1068                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1069                         M_MVFS(d,s1);
1070                         emit_store_dst(jd, iptr, d);
1071                         break;
1072
1073                 case ICMD_F2D:       /* ..., value  ==> ..., (double) value           */
1074
1075                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1076                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1077                         M_MVFD(d,s1);
1078                         emit_store_dst(jd, iptr, d);
1079                         break;
1080
1081                 case ICMD_FCMPG:      /* ..., val1, val2  ==> ..., val1 fcmpg val2    */
1082
1083                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1084                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1085                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1086                         M_CMF(s2, s1);
1087                         M_MOV_IMM(d, 0);
1088                         M_SUBGT_IMM(d, d, 1);
1089                         M_ADDLT_IMM(d, d, 1);
1090                         emit_store_dst(jd, iptr, d);
1091                         break;
1092
1093                 case ICMD_DCMPG:      /* ..., val1, val2  ==> ..., val1 dcmpg val2    */
1094
1095                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1096                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1097                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1098                         M_CMF(s2, s1);
1099                         M_MOV_IMM(d, 0);
1100                         M_SUBGT_IMM(d, d, 1);
1101                         M_ADDLT_IMM(d, d, 1);
1102                         emit_store_dst(jd, iptr, d);
1103                         break;
1104
1105                 case ICMD_FCMPL:      /* ..., val1, val2  ==> ..., val1 fcmpl val2    */
1106
1107                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1108                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1109                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1110                         M_CMF(s1, s2);
1111                         M_MOV_IMM(d, 0);
1112                         M_SUBLT_IMM(d, d, 1);
1113                         M_ADDGT_IMM(d, d, 1);
1114                         emit_store_dst(jd, iptr, d);
1115                         break;
1116
1117                 case ICMD_DCMPL:      /* ..., val1, val2  ==> ..., val1 dcmpl val2    */
1118
1119                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1120                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1121                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1122                         M_CMF(s1, s2);
1123                         M_MOV_IMM(d, 0);
1124                         M_SUBLT_IMM(d, d, 1);
1125                         M_ADDGT_IMM(d, d, 1);
1126                         emit_store_dst(jd, iptr, d);
1127                         break;
1128
1129 #endif /* !defined(ENABLE_SOFTFLOAT) */
1130
1131
1132                 /* memory operations **************************************************/
1133
1134                 case ICMD_ARRAYLENGTH: /* ..., arrayref  ==> ..., length              */
1135
1136                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1137                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1138                         /* implicit null-pointer check */
1139                         M_ILD_INTERN(d, s1, OFFSET(java_arrayheader, size));
1140                         emit_store_dst(jd, iptr, d);
1141                         break;
1142
1143                 case ICMD_BALOAD:     /* ..., arrayref, index  ==> ..., value         */
1144
1145                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1146                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1147                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1148                         /* implicit null-pointer check */
1149                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1150                         M_ADD(REG_ITMP1, s1, s2); /* REG_ITMP1 = s1 + 1 * s2 */
1151                         M_LDRSB(d, REG_ITMP1, OFFSET(java_bytearray, data[0]));
1152                         emit_store_dst(jd, iptr, d);
1153                         break;
1154
1155                 case ICMD_CALOAD:     /* ..., arrayref, index  ==> ..., value         */
1156
1157                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1158                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1159                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1160                         /* implicit null-pointer check */
1161                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1162                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1163                         M_LDRH(d, REG_ITMP1, OFFSET(java_chararray, data[0]));
1164                         emit_store_dst(jd, iptr, d);
1165                         break;
1166
1167                 case ICMD_SALOAD:     /* ..., arrayref, index  ==> ..., value         */
1168
1169                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1170                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1171                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1172                         /* implicit null-pointer check */
1173                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1174                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1175                         M_LDRSH(d, REG_ITMP1, OFFSET(java_shortarray, data[0]));
1176                         emit_store_dst(jd, iptr, d);
1177                         break;
1178
1179                 case ICMD_IALOAD:     /* ..., arrayref, index  ==> ..., value         */
1180
1181                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1182                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1183                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1184                         /* implicit null-pointer check */
1185                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1186                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1187                         M_ILD_INTERN(d, REG_ITMP1, OFFSET(java_intarray, data[0]));
1188                         emit_store_dst(jd, iptr, d);
1189                         break;
1190
1191                 case ICMD_LALOAD:     /* ..., arrayref, index  ==> ..., value         */
1192
1193                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1194                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1195                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1196                         /* implicit null-pointer check */
1197                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1198                         M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1199                         M_LLD_INTERN(d, REG_ITMP3, OFFSET(java_longarray, data[0]));
1200                         emit_store_dst(jd, iptr, d);
1201                         break;
1202
1203                 case ICMD_FALOAD:     /* ..., arrayref, index  ==> ..., value         */
1204
1205                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1206                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1207                         /* implicit null-pointer check */
1208                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1209                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1210 #if !defined(ENABLE_SOFTFLOAT)
1211                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1212                         M_FLD_INTERN(d, REG_ITMP1, OFFSET(java_floatarray, data[0]));
1213 #else
1214                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1215                         M_ILD_INTERN(d, REG_ITMP1, OFFSET(java_floatarray, data[0]));
1216 #endif
1217                         emit_store_dst(jd, iptr, d);
1218                         break;
1219
1220                 case ICMD_DALOAD:     /* ..., arrayref, index  ==> ..., value         */
1221
1222                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1223                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1224                         /* implicit null-pointer check */
1225                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1226                         M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1227 #if !defined(ENABLE_SOFTFLOAT)
1228                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1229                         M_DLD_INTERN(d, REG_ITMP3, OFFSET(java_doublearray, data[0]));
1230 #else
1231                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1232                         M_LLD_INTERN(d, REG_ITMP3, OFFSET(java_doublearray, data[0]));
1233 #endif
1234                         emit_store_dst(jd, iptr, d);
1235                         break;
1236
1237                 case ICMD_AALOAD:     /* ..., arrayref, index  ==> ..., value         */
1238
1239                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1240                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1241                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1242                         /* implicit null-pointer check */
1243                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1244                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1245                         M_LDR_INTERN(d, REG_ITMP1, OFFSET(java_objectarray, data[0]));
1246                         emit_store_dst(jd, iptr, d);
1247                         break;
1248
1249                 case ICMD_BASTORE:    /* ..., arrayref, index, value  ==> ...         */
1250
1251                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1252                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1253                         /* implicit null-pointer check */
1254                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1255                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1256                         M_ADD(REG_ITMP1, s1, s2); /* REG_ITMP1 = s1 + 1 * s2 */
1257                         M_STRB(s3, REG_ITMP1, OFFSET(java_bytearray, data[0]));
1258                         break;
1259
1260                 case ICMD_CASTORE:    /* ..., arrayref, index, value  ==> ...         */
1261
1262                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1263                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1264                         /* implicit null-pointer check */
1265                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1266                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1267                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1268                         M_STRH(s3, REG_ITMP1, OFFSET(java_chararray, data[0]));
1269                         break;
1270
1271                 case ICMD_SASTORE:    /* ..., arrayref, index, value  ==> ...         */
1272
1273                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1274                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1275                         /* implicit null-pointer check */
1276                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1277                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1278                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1279                         M_STRH(s3, REG_ITMP1, OFFSET(java_shortarray, data[0]));
1280                         break;
1281
1282                 case ICMD_IASTORE:    /* ..., arrayref, index, value  ==> ...         */
1283
1284                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1285                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1286                         /* implicit null-pointer check */
1287                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1288                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1289                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1290                         M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_intarray, data[0]));
1291                         break;
1292
1293                 case ICMD_LASTORE:    /* ..., arrayref, index, value  ==> ...         */
1294
1295                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1296                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1297                         /* implicit null-pointer check */
1298                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1299                         M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1300                         s3 = emit_load_s3(jd, iptr, REG_ITMP12_PACKED);
1301                         M_LST_INTERN(s3, REG_ITMP3, OFFSET(java_longarray, data[0]));
1302                         break;
1303
1304                 case ICMD_FASTORE:    /* ..., arrayref, index, value  ==> ...         */
1305
1306                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1307                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1308                         /* implicit null-pointer check */
1309                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1310                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1311 #if !defined(ENABLE_SOFTFLOAT)
1312                         s3 = emit_load_s3(jd, iptr, REG_FTMP1);
1313                         M_FST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray, data[0]));
1314 #else
1315                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1316                         M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray, data[0]));
1317 #endif
1318                         break;
1319
1320                 case ICMD_DASTORE:    /* ..., arrayref, index, value  ==> ...         */
1321
1322                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1323                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1324                         /* implicit null-pointer check */
1325                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1326                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 3)); /* REG_ITMP1 = s1 + 8 * s2 */
1327 #if !defined(ENABLE_SOFTFLOAT)
1328                         s3 = emit_load_s3(jd, iptr, REG_FTMP1);
1329                         M_DST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray, data[0]));
1330 #else
1331                         s3 = emit_load_s3(jd, iptr, REG_ITMP23_PACKED);
1332                         M_LST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray, data[0]));
1333 #endif
1334                         break;
1335
1336                 case ICMD_AASTORE:    /* ..., arrayref, index, value  ==> ...         */
1337
1338                         s1 = emit_load_s1(jd, iptr, REG_A0);
1339                         s2 = emit_load_s2(jd, iptr, REG_ITMP1);
1340                         s3 = emit_load_s3(jd, iptr, REG_A1);
1341
1342                         /* implicit null-pointer check */
1343                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1344
1345                         /* move arguments to argument registers */
1346                         M_INTMOVE(s1, REG_A0);
1347                         M_INTMOVE(s3, REG_A1);
1348
1349                         /* call builtin function */
1350                         disp = dseg_add_functionptr(cd, BUILTIN_canstore);
1351                         M_DSEG_BRANCH(disp);
1352
1353                         /* recompute pv */
1354                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
1355                         M_RECOMPUTE_PV(s1);
1356
1357                         /* check resturn value of builtin */
1358                         emit_exception_check(cd, iptr);
1359
1360                         /* finally store address into array */
1361                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1362                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1363                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1364                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1365                         M_STR_INTERN(s3, REG_ITMP1, OFFSET(java_objectarray, data[0]));
1366                         break;
1367
1368                 case ICMD_GETSTATIC:  /* ...  ==> ..., value                          */
1369
1370                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1371                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1372
1373                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1374
1375                                 disp = dseg_add_unique_address(cd, NULL);
1376
1377                                 codegen_addpatchref(cd, PATCHER_get_putstatic, uf, disp);
1378
1379                                 if (opt_showdisassemble)
1380                                         M_NOP;
1381                         }
1382                         else {
1383                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1384
1385                                 fieldtype = fi->type;
1386
1387                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1388                                         codegen_addpatchref(cd, PATCHER_clinit, fi->class, 0);
1389
1390                                         if (opt_showdisassemble)
1391                                                 M_NOP;
1392                                 }
1393
1394                                 disp = dseg_add_address(cd, &(fi->value));
1395                         }
1396
1397                         M_DSEG_LOAD(REG_ITMP3, disp);
1398                         switch (fieldtype) {
1399                         case TYPE_INT:
1400 #if defined(ENABLE_SOFTFLOAT)
1401                         case TYPE_FLT:
1402 #endif
1403                         case TYPE_ADR:
1404                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1405                                 M_ILD_INTERN(d, REG_ITMP3, 0);
1406                                 break;
1407                         case TYPE_LNG:
1408 #if defined(ENABLE_SOFTFLOAT)
1409                         case TYPE_DBL:
1410 #endif
1411                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1412                                 M_LLD_INTERN(d, REG_ITMP3, 0);
1413                                 break;
1414 #if !defined(ENABLE_SOFTFLOAT)
1415                         case TYPE_FLT:
1416                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1417                                 M_FLD_INTERN(d, REG_ITMP3, 0);
1418                                 break;
1419                         case TYPE_DBL:
1420                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1421                                 M_DLD_INTERN(d, REG_ITMP3, 0);
1422                                 break;
1423 #endif
1424                         default:
1425                                 assert(0);
1426                         }
1427                         emit_store_dst(jd, iptr, d);
1428                         break;
1429
1430                 case ICMD_PUTSTATIC:  /* ..., value  ==> ...                          */
1431
1432                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1433                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1434
1435                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1436
1437                                 disp = dseg_add_unique_address(cd, NULL);
1438
1439                                 codegen_addpatchref(cd, PATCHER_get_putstatic, uf, disp);
1440
1441                                 if (opt_showdisassemble)
1442                                         M_NOP;
1443                         }
1444                         else {
1445                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1446
1447                                 fieldtype = fi->type;
1448
1449                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1450                                         codegen_addpatchref(cd, PATCHER_clinit, fi->class, 0);
1451
1452                                         if (opt_showdisassemble)
1453                                                 M_NOP;
1454                                 }
1455
1456                                 disp = dseg_add_address(cd, &(fi->value));
1457                         }
1458
1459                         M_DSEG_LOAD(REG_ITMP3, disp);
1460                         switch (fieldtype) {
1461                         case TYPE_INT:
1462 #if defined(ENABLE_SOFTFLOAT)
1463                         case TYPE_FLT:
1464 #endif
1465                         case TYPE_ADR:
1466                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1467                                 M_IST_INTERN(s1, REG_ITMP3, 0);
1468                                 break;
1469                         case TYPE_LNG:
1470 #if defined(ENABLE_SOFTFLOAT)
1471                         case TYPE_DBL:
1472 #endif
1473                                 s1 = emit_load_s1(jd, iptr, REG_ITMP12_PACKED);
1474                                 M_LST_INTERN(s1, REG_ITMP3, 0);
1475                                 break;
1476 #if !defined(ENABLE_SOFTFLOAT)
1477                         case TYPE_FLT:
1478                                 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1479                                 M_FST_INTERN(s1, REG_ITMP3, 0);
1480                                 break;
1481                         case TYPE_DBL:
1482                                 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1483                                 M_DST_INTERN(s1, REG_ITMP3, 0);
1484                                 break;
1485 #endif
1486                         default:
1487                                 assert(0);
1488                         }
1489                         break;
1490
1491                 case ICMD_GETFIELD:   /* ..., objectref, value  ==> ...               */
1492
1493                         s1 = emit_load_s1(jd, iptr, REG_ITMP3);
1494                         emit_nullpointer_check(cd, iptr, s1);
1495
1496
1497                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1498                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1499
1500                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1501                         }
1502                         else {
1503                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1504
1505                                 fieldtype = fi->type;
1506                                 disp      = fi->offset;
1507                         }
1508
1509 #if !defined(ENABLE_SOFTFLOAT)
1510                         /* HACK: softnull checks on floats */
1511                         if (!INSTRUCTION_MUST_CHECK(iptr) && IS_FLT_DBL_TYPE(fieldtype))
1512                                 emit_nullpointer_check_force(cd, iptr, s1);
1513 #endif
1514
1515                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1516                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1517
1518                                 codegen_addpatchref(cd, PATCHER_get_putfield, uf, 0);
1519
1520                                 if (opt_showdisassemble)
1521                                         M_NOP;
1522
1523                                 disp = 0;
1524                         }
1525
1526                         switch (fieldtype) {
1527                         case TYPE_INT:
1528 #if defined(ENABLE_SOFTFLOAT)
1529                         case TYPE_FLT:
1530 #endif
1531                         case TYPE_ADR:
1532                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1533                                 M_ILD(d, s1, disp);
1534                                 break;
1535                         case TYPE_LNG:
1536 #if defined(ENABLE_SOFTFLOAT)
1537                         case TYPE_DBL:
1538 #endif
1539                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1540                                 M_LLD(d, s1, disp);
1541                                 break;
1542 #if !defined(ENABLE_SOFTFLOAT)
1543                         case TYPE_FLT:
1544                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1545                                 M_FLD(d, s1, disp);
1546                                 break;
1547                         case TYPE_DBL:
1548                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1549                                 M_DLD(d, s1, disp);
1550                                 break;
1551 #endif
1552                         default:
1553                                 assert(0);
1554                         }
1555                         emit_store_dst(jd, iptr, d);
1556                         break;
1557
1558                 case ICMD_PUTFIELD:   /* ..., objectref, value  ==> ...               */
1559
1560                         s1 = emit_load_s1(jd, iptr, REG_ITMP3);
1561                         emit_nullpointer_check(cd, iptr, s1);
1562
1563                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1564                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1565
1566                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1567                         }
1568                         else {
1569                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1570
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                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1607
1608                                 codegen_addpatchref(cd, PATCHER_get_putfield, uf, 0);
1609
1610                                 if (opt_showdisassemble)
1611                                         M_NOP;
1612
1613                                 disp = 0;
1614                         }
1615
1616                         switch (fieldtype) {
1617                         case TYPE_INT:
1618 #if defined(ENABLE_SOFTFLOAT)
1619                         case TYPE_FLT:
1620 #endif
1621                         case TYPE_ADR:
1622                                 M_IST(s2, s1, disp);
1623                                 break;
1624                         case TYPE_LNG:
1625 #if defined(ENABLE_SOFTFLOAT)
1626                         case TYPE_DBL:
1627 #endif
1628                                 M_LST(s2, s1, disp);
1629                                 break;
1630 #if !defined(ENABLE_SOFTFLOAT)
1631                         case TYPE_FLT:
1632                                 M_FST(s2, s1, disp);
1633                                 break;
1634                         case TYPE_DBL:
1635                                 M_DST(s2, s1, disp);
1636                                 break;
1637 #endif
1638                         default:
1639                                 assert(0);
1640                         }
1641                         break;
1642
1643
1644                 /* branch operations **************************************************/
1645
1646                 case ICMD_ATHROW:       /* ..., objectref ==> ... (, objectref)       */
1647
1648                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1649                         M_INTMOVE(s1, REG_ITMP1_XPTR);
1650                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1651                                 codegen_addpatchref(cd, PATCHER_athrow_areturn,
1652                                                                         iptr->sx.s23.s2.uc, 0);
1653
1654                                 if (opt_showdisassemble)
1655                                         M_NOP;
1656                         }
1657                         disp = dseg_add_functionptr(cd, asm_handle_exception);
1658                         M_DSEG_LOAD(REG_ITMP3, disp);
1659                         M_MOV(REG_ITMP2_XPC, REG_PC);
1660                         M_MOV(REG_PC, REG_ITMP3);
1661                         M_NOP;              /* nop ensures that XPC is less than the end  */
1662                                             /* of basic block                             */
1663                         break;
1664
1665                 case ICMD_GOTO:         /* ... ==> ...                                */
1666                 case ICMD_RET:
1667
1668                         emit_br(cd, iptr->dst.block);
1669                         break;
1670
1671                 case ICMD_JSR:          /* ... ==> ...                                */
1672
1673                         emit_br(cd, iptr->sx.s23.s3.jsrtarget.block);
1674                         break;
1675
1676                 case ICMD_IFNULL:       /* ..., value ==> ...                         */
1677                 case ICMD_IFNONNULL:
1678
1679                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1680                         M_TEQ_IMM(s1, 0);
1681                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFNULL, BRANCH_OPT_NONE);
1682                         break;
1683
1684                 case ICMD_IFLT:         /* ..., value ==> ...                         */
1685                 case ICMD_IFLE:         /* op1 = target JavaVM pc, val.i = constant   */
1686                 case ICMD_IFGT:
1687                 case ICMD_IFGE:
1688                 case ICMD_IFEQ:
1689                 case ICMD_IFNE:
1690
1691                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1692                         M_COMPARE(s1, iptr->sx.val.i);
1693                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFEQ, BRANCH_OPT_NONE);
1694                         break;
1695
1696                 case ICMD_IF_LEQ:       /* ..., value ==> ...                         */
1697
1698                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1699                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1700                         if (iptr->sx.val.l == 0) {
1701                                 M_ORR_S(s1, s2, REG_ITMP3);
1702                         }
1703                         else {
1704                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1705                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1706                                 M_CMP(s1, REG_ITMP3);*/
1707                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1708                                 M_CMPEQ(s2, REG_ITMP3);
1709                         }
1710                         emit_beq(cd, iptr->dst.block);
1711                         break;
1712
1713                 case ICMD_IF_LLT:       /* ..., value ==> ...                         */
1714
1715                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1716                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1717                         if (iptr->sx.val.l == 0) {
1718                                 /* if high word is less than zero, the whole long is too */
1719                                 M_CMP_IMM(s1, 0);
1720                                 emit_blt(cd, iptr->dst.block);
1721                         }
1722                         else {
1723                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1724                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1725                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1726                                 M_CMP(s1, REG_ITMP3);*/
1727                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1728                                 M_MOVGT_IMM(2, REG_ITMP1);
1729                                 M_MOVEQ_IMM(1, REG_ITMP1);
1730
1731                                 /* low compare: x=x-1(ifLO) */
1732                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1733                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1734                                 M_CMP(s2, REG_ITMP3);*/
1735                                 M_SUBLO_IMM(REG_ITMP1, REG_ITMP1, 1);
1736
1737                                 /* branch if (x LT 1) */
1738                                 M_CMP_IMM(REG_ITMP1, 1);
1739                                 emit_blt(cd, iptr->dst.block);
1740                         }
1741                         break;
1742
1743                 case ICMD_IF_LLE:       /* ..., value ==> ...                         */
1744
1745                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1746                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1747                         if (iptr->sx.val.l == 0) {
1748                                 /* if high word is less than zero, the whole long is too  */
1749                                 M_CMP_IMM(s1, 0);
1750                                 emit_blt(cd, iptr->dst.block);
1751
1752                                 /* ... otherwise the low word has to be zero (tricky!) */
1753                                 M_CMPEQ_IMM(s2, 0);
1754                                 emit_beq(cd, iptr->dst.block);
1755                         }
1756                         else {
1757                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1758                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1759                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1760                                 M_CMP(s1, REG_ITMP3);*/
1761                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1762                                 M_MOVGT_IMM(2, REG_ITMP1);
1763                                 M_MOVEQ_IMM(1, REG_ITMP1);
1764
1765                                 /* low compare: x=x+1(ifHI) */
1766                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1767                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1768                                 M_CMP(s2, REG_ITMP3);*/
1769                                 M_ADDHI_IMM(REG_ITMP1, REG_ITMP1, 1);
1770
1771                                 /* branch if (x LE 1) */
1772                                 M_CMP_IMM(REG_ITMP1, 1);
1773                                 emit_ble(cd, iptr->dst.block);
1774                         }
1775                         break;
1776
1777                 case ICMD_IF_LGE:       /* ..., value ==> ...                         */
1778
1779                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1780                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1781                         if (iptr->sx.val.l == 0) {
1782                                 /* if high word is greater or equal zero, the whole long is too */
1783                                 M_CMP_IMM(s1, 0);
1784                                 emit_bge(cd, iptr->dst.block);
1785                         }
1786                         else {
1787                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1788                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1789                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1790                                 M_CMP(s1, REG_ITMP3);*/
1791                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1792                                 M_MOVGT_IMM(2, REG_ITMP1);
1793                                 M_MOVEQ_IMM(1, REG_ITMP1);
1794
1795                                 /* low compare: x=x-1(ifLO) */
1796                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1797                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1798                                 M_CMP(s2, REG_ITMP3);*/
1799                                 M_SUBLO_IMM(REG_ITMP1, REG_ITMP1, 1);
1800
1801                                 /* branch if (x GE 1) */
1802                                 M_CMP_IMM(REG_ITMP1, 1);
1803                                 emit_bge(cd, iptr->dst.block);
1804                         }
1805                         break;
1806
1807                 case ICMD_IF_LGT:       /* ..., value ==> ...                         */
1808
1809                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1810                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1811 #if 0
1812                         if (iptr->sx.val.l == 0) {
1813                                 /* if high word is greater than zero, the whole long is too */
1814                                 M_CMP_IMM(s1, 0);
1815                                 M_BGT(0);
1816                                 codegen_add_branch_ref(cd, iptr->dst.block);
1817
1818                                 /* ... or high was zero and low is non zero (tricky!) */
1819                                 M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1820                                 M_MOVLT_IMM(1, REG_ITMP3);
1821                                 M_ORR_S(REG_ITMP3, s2, REG_ITMP3);
1822                                 M_BNE(0);
1823                                 codegen_add_branch_ref(cd, iptr->dst.block);
1824                         }
1825                         else {
1826 #endif
1827                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1828                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1829                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1830                                 M_CMP(s1, REG_ITMP3);*/
1831                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1832                                 M_MOVGT_IMM(2, REG_ITMP1);
1833                                 M_MOVEQ_IMM(1, REG_ITMP1);
1834
1835                                 /* low compare: x=x+1(ifHI) */
1836                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1837                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1838                                 M_CMP(s2, REG_ITMP3);*/
1839                                 M_ADDHI_IMM(REG_ITMP1, REG_ITMP1, 1);
1840
1841                                 /* branch if (x GT 1) */
1842                                 M_CMP_IMM(REG_ITMP1, 1);
1843                                 emit_bgt(cd, iptr->dst.block);
1844 #if 0
1845                         }
1846 #endif
1847                         break;
1848
1849                 case ICMD_IF_LNE:       /* ..., value ==> ...                         */
1850
1851                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1852                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1853                         if (iptr->sx.val.l == 0) {
1854                                 M_ORR_S(s1, s2, REG_ITMP3);
1855                         }
1856                         else {
1857                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1858                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1859                                 M_CMP(s1, REG_ITMP3);*/
1860                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1861                                 M_CMPEQ(s2, REG_ITMP3);
1862                         }
1863                         emit_bne(cd, iptr->dst.block);
1864                         break;
1865
1866                 case ICMD_IF_ICMPEQ:    /* ..., value, value ==> ...                  */
1867                 case ICMD_IF_ICMPNE:
1868                 case ICMD_IF_ICMPLT:
1869                 case ICMD_IF_ICMPLE:
1870                 case ICMD_IF_ICMPGT:
1871                 case ICMD_IF_ICMPGE:
1872
1873                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1874                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1875                         M_CMP(s1, s2);
1876                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IF_ICMPEQ, BRANCH_OPT_NONE);
1877                         break;
1878
1879                 case ICMD_IF_ACMPEQ:    /* ..., value, value ==> ...                  */
1880                 case ICMD_IF_ACMPNE:
1881
1882                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1883                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1884                         M_CMP(s1, s2);
1885                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IF_ACMPEQ, BRANCH_OPT_NONE);
1886                         break;
1887
1888                 case ICMD_IF_LCMPEQ:    /* ..., value, value ==> ...                  */
1889                                         /* op1 = target JavaVM pc                     */
1890
1891                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1892                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1893                         M_CMP(s1, s2);
1894
1895                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1896                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1897                         M_CMPEQ(s1, s2);
1898
1899                         emit_beq(cd, iptr->dst.block);
1900                         break;
1901
1902                 case ICMD_IF_LCMPNE:    /* ..., value, value ==> ...                  */
1903                                         /* op1 = target JavaVM pc                     */
1904
1905                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1906                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1907                         M_CMP(s1, s2);
1908
1909                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1910                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1911                         M_CMPEQ(s1, s2);
1912
1913                         emit_bne(cd, iptr->dst.block);
1914                         break;
1915
1916                 case ICMD_IF_LCMPLT:    /* ..., value, value ==> ...                  */
1917                                         /* op1 = target JavaVM pc                     */
1918
1919                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1920                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1921                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1922                         M_CMP(s1, s2);
1923                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1924                         M_MOVGT_IMM(2, REG_ITMP3);
1925                         M_MOVEQ_IMM(1, REG_ITMP3);
1926
1927                         /* low compare: x=x-1(ifLO) */
1928                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1929                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1930                         M_CMP(s1, s2);
1931                         M_SUBLO_IMM(REG_ITMP3, REG_ITMP3, 1);
1932
1933                         /* branch if (x LT 1) */
1934                         M_CMP_IMM(REG_ITMP3, 1);
1935                         emit_blt(cd, iptr->dst.block);
1936                         break;
1937
1938                 case ICMD_IF_LCMPLE:    /* ..., value, value ==> ...                  */
1939                                         /* op1 = target JavaVM pc                     */
1940
1941                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1942                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1943                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1944                         M_CMP(s1, s2);
1945                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1946                         M_MOVGT_IMM(2, REG_ITMP3);
1947                         M_MOVEQ_IMM(1, REG_ITMP3);
1948
1949                         /* low compare: x=x-1(ifLO) */
1950                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1951                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1952                         M_CMP(s1, s2);
1953                         M_ADDHI_IMM(REG_ITMP3, REG_ITMP3, 1);
1954
1955                         /* branch if (x LE 1) */
1956                         M_CMP_IMM(REG_ITMP3, 1);
1957                         emit_ble(cd, iptr->dst.block);
1958                         break;
1959
1960                 case ICMD_IF_LCMPGT:    /* ..., value, value ==> ...                  */
1961                                         /* op1 = target JavaVM pc                     */
1962
1963                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1964                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1965                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1966                         M_CMP(s1, s2);
1967                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1968                         M_MOVGT_IMM(2, REG_ITMP3);
1969                         M_MOVEQ_IMM(1, REG_ITMP3);
1970
1971                         /* low compare: x=x-1(ifLO) */
1972                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1973                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1974                         M_CMP(s1, s2);
1975                         M_ADDHI_IMM(REG_ITMP3, REG_ITMP3, 1);
1976
1977                         /* branch if (x GT 1) */
1978                         M_CMP_IMM(REG_ITMP3, 1);
1979                         emit_bgt(cd, iptr->dst.block);
1980                         break;
1981
1982                 case ICMD_IF_LCMPGE:    /* ..., value, value ==> ...                  */
1983                                         /* op1 = target JavaVM pc                     */
1984
1985                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1986                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1987                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1988                         M_CMP(s1, s2);
1989                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1990                         M_MOVGT_IMM(2, REG_ITMP3);
1991                         M_MOVEQ_IMM(1, REG_ITMP3);
1992
1993                         /* low compare: x=x-1(ifLO) */
1994                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1995                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1996                         M_CMP(s1, s2);
1997                         M_SUBLO_IMM(REG_ITMP3, REG_ITMP3, 1);
1998
1999                         /* branch if (x GE 1) */
2000                         M_CMP_IMM(REG_ITMP3, 1);
2001                         emit_bge(cd, iptr->dst.block);
2002                         break;
2003
2004                 case ICMD_TABLESWITCH:  /* ..., index ==> ...                         */
2005                         {
2006                         s4 i, l;
2007                         branch_target_t *table;
2008
2009                         table = iptr->dst.table;
2010
2011                         l = iptr->sx.s23.s2.tablelow;
2012                         i = iptr->sx.s23.s3.tablehigh;
2013
2014                         /* calculate new index (index - low) */
2015                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2016                         if (l  == 0) {
2017                                 M_INTMOVE(s1, REG_ITMP1);
2018                         } else if (IS_IMM(l)) {
2019                                 M_SUB_IMM(REG_ITMP1, s1, l);
2020                         } else {
2021                                 ICONST(REG_ITMP2, l);
2022                                 M_SUB(REG_ITMP1, s1, REG_ITMP2);
2023                         }
2024
2025                         /* range check (index <= high-low) */
2026                         i = i - l + 1;
2027                         M_COMPARE(REG_ITMP1, i-1);
2028                         emit_bugt(cd, table[0].block);
2029
2030                         /* build jump table top down and use address of lowest entry */
2031
2032                         table += i;
2033
2034                         while (--i >= 0) {
2035                                 dseg_add_target(cd, table->block);
2036                                 --table;
2037                         }
2038                         }
2039
2040                         /* length of dataseg after last dseg_add_target is used by load */
2041                         /* TODO: this loads from data-segment */
2042                         M_ADD(REG_ITMP2, REG_PV, REG_LSL(REG_ITMP1, 2));
2043                         M_LDR(REG_PC, REG_ITMP2, -(cd->dseglen));
2044                         break;
2045
2046                 case ICMD_LOOKUPSWITCH: /* ..., key ==> ...                           */
2047                         {
2048                         s4 i;
2049                         lookup_target_t *lookup;
2050
2051                         lookup = iptr->dst.lookup;
2052
2053                         i = iptr->sx.s23.s2.lookupcount;
2054
2055                         /* compare keys */
2056                         MCODECHECK((i<<2)+8);
2057                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2058
2059                         while (--i >= 0) {
2060                                 M_COMPARE(s1, lookup->value);
2061                                 emit_beq(cd, lookup->target.block);
2062                                 lookup++;
2063                         }
2064
2065                         /* default branch */
2066                         emit_br(cd, iptr->sx.s23.s3.lookupdefault.block);
2067                         }
2068                         break;
2069
2070                 case ICMD_FRETURN:      /* ..., retvalue ==> ...                      */
2071
2072 #if !defined(ENABLE_SOFTFLOAT)
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                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2081                         M_INTMOVE(s1, REG_RESULT);
2082                         goto ICMD_RETURN_do;
2083
2084                 case ICMD_DRETURN:      /* ..., retvalue ==> ...                      */
2085
2086 #if !defined(ENABLE_SOFTFLOAT)
2087                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
2088                         M_CAST_FLT_TO_INT_TYPED(VAROP(iptr->s1)->type, s1, REG_RESULT_PACKED);
2089                         goto ICMD_RETURN_do;
2090 #endif
2091
2092                 case ICMD_LRETURN:      /* ..., retvalue ==> ...                      */
2093
2094                         s1 = emit_load_s1(jd, iptr, REG_RESULT_PACKED);
2095                         M_LNGMOVE(s1, REG_RESULT_PACKED);
2096                         goto ICMD_RETURN_do;
2097
2098                 case ICMD_ARETURN:      /* ..., retvalue ==> ...                      */
2099
2100                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2101                         M_INTMOVE(s1, REG_RESULT);
2102                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2103                                 codegen_addpatchref(cd, PATCHER_athrow_areturn,
2104                                                                         iptr->sx.s23.s2.uc, 0);
2105
2106                                 if (opt_showdisassemble)
2107                                         M_NOP;
2108                         }
2109                         goto ICMD_RETURN_do;
2110
2111                 case ICMD_RETURN:       /* ...  ==> ...                               */
2112                         ICMD_RETURN_do:
2113
2114 #if !defined(NDEBUG)
2115                         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
2116                                 emit_verbosecall_exit(jd);
2117 #endif
2118
2119 #if defined(ENABLE_THREADS)
2120                         /* call monitorexit function */
2121
2122                         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
2123                                 /* stack offset for monitor argument */
2124
2125                                 s1 = rd->memuse * 8;
2126
2127                                 /* we need to save the proper return value */
2128
2129                                 switch (iptr->opc) {
2130                                 case ICMD_IRETURN:
2131                                 case ICMD_ARETURN:
2132                                 case ICMD_LRETURN:
2133                                 case ICMD_FRETURN: /* XXX TWISTI: is that correct? */
2134                                 case ICMD_DRETURN:
2135                                         M_STMFD(BITMASK_RESULT, REG_SP);
2136                                         s1 += 2 * 4;
2137                                         break;
2138                                 }
2139
2140                                 M_LDR(REG_A0, REG_SP, s1);
2141                                 disp = dseg_add_functionptr(cd, LOCK_monitor_exit);
2142                                 M_DSEG_BRANCH(disp);
2143
2144                                 /* we no longer need PV here, no more loading */
2145                                 /*s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2146                                 M_RECOMPUTE_PV(s1);*/
2147
2148                                 switch (iptr->opc) {
2149                                 case ICMD_IRETURN:
2150                                 case ICMD_ARETURN:
2151                                 case ICMD_LRETURN:
2152                                 case ICMD_FRETURN: /* XXX TWISTI: is that correct? */
2153                                 case ICMD_DRETURN:
2154                                         M_LDMFD(BITMASK_RESULT, REG_SP);
2155                                         break;
2156                                 }
2157                         }
2158 #endif
2159
2160                         /* deallocate stackframe for spilled variables */
2161
2162                         if ((cd->stackframesize / 4 - savedregs_num) > 0)
2163                                 M_ADD_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - savedregs_num);
2164
2165                         /* restore callee saved registers + do return */
2166
2167                         if (savedregs_bitmask) {
2168                                 if (!jd->isleafmethod) {
2169                                         savedregs_bitmask &= ~(1<<REG_LR);
2170                                         savedregs_bitmask |= (1<<REG_PC);
2171                                 }
2172                                 M_LDMFD(savedregs_bitmask, REG_SP);
2173                         }
2174
2175                         /* if LR was not on stack, we need to return manually */
2176
2177                         if (jd->isleafmethod)
2178                                 M_MOV(REG_PC, REG_LR);
2179                         break;
2180
2181                 case ICMD_BUILTIN:      /* ..., arg1, arg2, arg3 ==> ...              */
2182
2183                         bte = iptr->sx.s23.s3.bte;
2184                         md  = bte->md;
2185                         goto ICMD_INVOKE_do;
2186
2187                 case ICMD_INVOKESTATIC: /* ..., [arg1, [arg2 ...]] ==> ...            */
2188                 case ICMD_INVOKESPECIAL:/* ..., objectref, [arg1, [arg2 ...]] ==> ... */
2189                 case ICMD_INVOKEVIRTUAL:/* op1 = arg count, val.a = method pointer    */
2190                 case ICMD_INVOKEINTERFACE:
2191
2192                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2193                                 lm = NULL;
2194                                 um = iptr->sx.s23.s3.um;
2195                                 md = um->methodref->parseddesc.md;
2196                         }
2197                         else {
2198                                 lm = iptr->sx.s23.s3.fmiref->p.method;
2199                                 um = NULL;
2200                                 md = lm->parseddesc;
2201                         }
2202
2203                 ICMD_INVOKE_do:
2204                         /* copy arguments to registers or stack location */
2205
2206                         s3 = md->paramcount;
2207
2208                         MCODECHECK((s3 << 1) + 64);
2209
2210                         for (s3 = s3 - 1; s3 >= 0; s3--) {
2211                                 var = VAR(iptr->sx.s23.s2.args[s3]);
2212                                 d   = md->params[s3].regoff;
2213
2214                                 if (var->flags & PREALLOC) /* argument was precolored? */
2215                                         continue;
2216
2217                                 /* TODO: document me */
2218 #if !defined(ENABLE_SOFTFLOAT)
2219                                 if (IS_INT_LNG_TYPE(var->type)) {
2220 #endif /* !defined(ENABLE_SOFTFLOAT) */
2221                                         if (!md->params[s3].inmemory) {
2222                                                 s1 = emit_load(jd, iptr, var, d);
2223
2224                                                 if (IS_2_WORD_TYPE(var->type))
2225                                                         M_LNGMOVE(s1, d);
2226                                                 else
2227                                                         M_INTMOVE(s1, d);
2228                                         }
2229                                         else {
2230                                                 if (IS_2_WORD_TYPE(var->type)) {
2231                                                         s1 = emit_load(jd, iptr, var, REG_ITMP12_PACKED);
2232                                                         M_LST(s1, REG_SP, d);
2233                                                 }
2234                                                 else {
2235                                                         s1 = emit_load(jd, iptr, var, REG_ITMP1);
2236                                                         M_IST(s1, REG_SP, d);
2237                                                 }
2238                                         }
2239 #if !defined(ENABLE_SOFTFLOAT)
2240                                 }
2241                                 else {
2242                                         if (!md->params[s3].inmemory) {
2243                                                 s1 = emit_load(jd, iptr, var, REG_FTMP1);
2244                                                 M_CAST_FLT_TO_INT_TYPED(var->type, s1, d);
2245                                         }
2246                                         else {
2247                                                 s1 = emit_load(jd, iptr, var, REG_FTMP1);
2248                                                 if (IS_2_WORD_TYPE(var->type))
2249                                                         M_DST(s1, REG_SP, d);
2250                                                 else
2251                                                         M_FST(s1, REG_SP, d);
2252                                         }
2253                                 }
2254 #endif /* !defined(ENABLE_SOFTFLOAT) */
2255                         }
2256
2257                         switch (iptr->opc) {
2258                         case ICMD_BUILTIN:
2259                                 disp = dseg_add_functionptr(cd, bte->fp);
2260
2261                                 M_DSEG_LOAD(REG_PV, disp); /* pointer to built-in-function */
2262
2263                                 /* generate the actual call */
2264
2265                                 M_MOV(REG_LR, REG_PC);
2266                                 M_MOV(REG_PC, REG_PV);
2267                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2268                                 M_RECOMPUTE_PV(s1);
2269
2270                                 emit_exception_check(cd, iptr);
2271                                 break;
2272
2273                         case ICMD_INVOKESPECIAL:
2274                                 emit_nullpointer_check(cd, iptr, REG_A0);
2275                                 /* fall through */
2276
2277                         case ICMD_INVOKESTATIC:
2278                                 if (lm == NULL) {
2279                                         disp = dseg_add_unique_address(cd, NULL);
2280
2281                                         codegen_addpatchref(cd, PATCHER_invokestatic_special,
2282                                                                                 um, disp);
2283
2284                                         if (opt_showdisassemble)
2285                                                 M_NOP;
2286                                 }
2287                                 else
2288                                         disp = dseg_add_address(cd, lm->stubroutine);
2289
2290                                 M_DSEG_LOAD(REG_PV, disp);            /* Pointer to method */
2291
2292                                 /* generate the actual call */
2293
2294                                 M_MOV(REG_LR, REG_PC);
2295                                 M_MOV(REG_PC, REG_PV);
2296                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2297                                 M_RECOMPUTE_PV(s1);
2298                                 break;
2299
2300                         case ICMD_INVOKEVIRTUAL:
2301                                 if (lm == NULL) {
2302                                         codegen_addpatchref(cd, PATCHER_invokevirtual, um, 0);
2303
2304                                         if (opt_showdisassemble)
2305                                                 M_NOP;
2306
2307                                         s1 = 0;
2308                                 }
2309                                 else
2310                                         s1 = OFFSET(vftbl_t, table[0]) +
2311                                                 sizeof(methodptr) * lm->vftblindex;
2312
2313                                 /* implicit null-pointer check */
2314                                 M_LDR_INTERN(REG_METHODPTR, REG_A0,
2315                                                          OFFSET(java_objectheader, vftbl));
2316                                 M_LDR_INTERN(REG_PV, REG_METHODPTR, s1);
2317
2318                                 /* generate the actual call */
2319
2320                                 M_MOV(REG_LR, REG_PC);
2321                                 M_MOV(REG_PC, REG_PV);
2322                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2323                                 M_RECOMPUTE_PV(s1);
2324                                 break;
2325
2326                         case ICMD_INVOKEINTERFACE:
2327                                 if (lm == NULL) {
2328                                         codegen_addpatchref(cd, PATCHER_invokeinterface, um, 0);
2329
2330                                         if (opt_showdisassemble)
2331                                                 M_NOP;
2332
2333                                         s1 = 0;
2334                                         s2 = 0;
2335                                 }
2336                                 else {
2337                                         s1 = OFFSET(vftbl_t, interfacetable[0]) -
2338                                                 sizeof(methodptr*) * lm->class->index;
2339                                         s2 = sizeof(methodptr) * (lm - lm->class->methods);
2340                                 }
2341
2342                                 /* implicit null-pointer check */
2343                                 M_LDR_INTERN(REG_METHODPTR, REG_A0,
2344                                                          OFFSET(java_objectheader, vftbl));
2345                                 M_LDR_INTERN(REG_METHODPTR, REG_METHODPTR, s1);
2346                                 M_LDR_INTERN(REG_PV, REG_METHODPTR, s2);
2347
2348                                 /* generate the actual call */
2349
2350                                 M_MOV(REG_LR, REG_PC);
2351                                 M_MOV(REG_PC, REG_PV);
2352                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2353                                 M_RECOMPUTE_PV(s1);
2354                                 break;
2355                         }
2356
2357                         /* store return value */
2358
2359                         d = md->returntype.type;
2360
2361 #if !defined(__SOFTFP__)
2362                         /* TODO: this is only a hack, since we use R0/R1 for float
2363                            return!  this depends on gcc; it is independent from
2364                            our ENABLE_SOFTFLOAT define */
2365                         if (iptr->opc == ICMD_BUILTIN && d != TYPE_VOID && IS_FLT_DBL_TYPE(d)) {
2366 #if 0 && !defined(NDEBUG)
2367                                 dolog("BUILTIN that returns float or double (%s.%s)", m->class->name->text, m->name->text);
2368 #endif
2369                                 /* we cannot use this macro, since it is not defined
2370                                    in ENABLE_SOFTFLOAT M_CAST_FLT_TO_INT_TYPED(d,
2371                                    REG_FRESULT, REG_RESULT_TYPED(d)); */
2372                                 if (IS_2_WORD_TYPE(d)) {
2373                                         DCD(0xed2d8102); /* stfd    f0, [sp, #-8]! */
2374                                         M_LDRD_UPDATE(REG_RESULT_PACKED, REG_SP, 8);
2375                                 } else {
2376                                         DCD(0xed2d0101); /* stfs    f0, [sp, #-4]!*/
2377                                         M_LDR_UPDATE(REG_RESULT, REG_SP, 4);
2378                                 }
2379                         }
2380 #endif
2381
2382                         if (d != TYPE_VOID) {
2383 #if !defined(ENABLE_SOFTFLOAT)
2384                                 if (IS_INT_LNG_TYPE(d)) {
2385 #endif /* !defined(ENABLE_SOFTFLOAT) */
2386                                         if (IS_2_WORD_TYPE(d)) {
2387                                                 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
2388                                                 M_LNGMOVE(REG_RESULT_PACKED, s1);
2389                                         }
2390                                         else {
2391                                                 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2392                                                 M_INTMOVE(REG_RESULT, s1);
2393                                         }
2394
2395 #if !defined(ENABLE_SOFTFLOAT)
2396                                 } else {
2397                                         s1 = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
2398                                         M_CAST_INT_TO_FLT_TYPED(VAROP(iptr->dst)->type, REG_RESULT_TYPED(VAROP(iptr->dst)->type), s1);
2399                                 }
2400 #endif /* !defined(ENABLE_SOFTFLOAT) */
2401
2402                                 emit_store_dst(jd, iptr, s1);
2403                         }
2404                         break;
2405
2406                 case ICMD_CHECKCAST:  /* ..., objectref ==> ..., objectref            */
2407
2408                         if (!(iptr->flags.bits & INS_FLAG_ARRAY)) {
2409                                 /* object type cast-check */
2410
2411                         classinfo *super;
2412                         s4         superindex;
2413
2414                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2415                                 super      = NULL;
2416                                 superindex = 0;
2417                         }
2418                         else {
2419                                 super      = iptr->sx.s23.s3.c.cls;
2420                                 superindex = super->index;
2421                         }
2422
2423                                 if ((super == NULL) || !(super->flags & ACC_INTERFACE))
2424                                         CODEGEN_CRITICAL_SECTION_NEW;
2425
2426                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2427
2428                         /* if class is not resolved, check which code to call */
2429
2430                         if (super == NULL) {
2431                                 M_TST(s1, s1);
2432                                 emit_label_beq(cd, BRANCH_LABEL_1);
2433
2434                                 disp = dseg_add_unique_s4(cd, 0); /* super->flags */
2435                                 codegen_addpatchref(cd, PATCHER_checkcast_instanceof_flags,
2436                                                     iptr->sx.s23.s3.c.ref, disp);
2437
2438                                 if (opt_showdisassemble)
2439                                         M_NOP;
2440
2441                                 M_DSEG_LOAD(REG_ITMP2, disp);
2442                                 disp = dseg_add_s4(cd, ACC_INTERFACE);
2443                                 M_DSEG_LOAD(REG_ITMP3, disp);
2444                                 M_TST(REG_ITMP2, REG_ITMP3);
2445                                 emit_label_beq(cd, BRANCH_LABEL_2);
2446                         }
2447
2448                         /* interface checkcast code */
2449
2450                         if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2451                                 if ((super == NULL) || !IS_IMM(superindex)) {
2452                                         disp = dseg_add_unique_s4(cd, superindex);
2453                                 }
2454                                 if (super == NULL) {
2455                                         codegen_addpatchref(cd,
2456                                                             PATCHER_checkcast_instanceof_interface,
2457                                                             iptr->sx.s23.s3.c.ref, disp);
2458
2459                                         if (opt_showdisassemble)
2460                                                 M_NOP;
2461                                 }
2462                                 else {
2463                                         M_TST(s1, s1);
2464                                         emit_label_beq(cd, BRANCH_LABEL_3);
2465                                 }
2466
2467                                 M_LDR_INTERN(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2468                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, interfacetablelength));
2469
2470                                 /* we put unresolved or non-immediate superindices onto dseg */
2471                                 if ((super == NULL) || !IS_IMM(superindex)) {
2472                                         /* disp was computed before we added the patcher */
2473                                         M_DSEG_LOAD(REG_ITMP2, disp);
2474                                         M_CMP(REG_ITMP3, REG_ITMP2);
2475                                 } else {
2476                                         assert(IS_IMM(superindex));
2477                                         M_CMP_IMM(REG_ITMP3, superindex);
2478                                 }
2479
2480                                 emit_classcast_check(cd, iptr, BRANCH_LE, REG_ITMP3, s1);
2481
2482                                 /* if we loaded the superindex out of the dseg above, we do
2483                                    things differently here! */
2484                                 if ((super == NULL) || !IS_IMM(superindex)) {
2485
2486                                         M_LDR_INTERN(REG_ITMP3, s1, OFFSET(java_objectheader, vftbl));
2487
2488                                         /* this assumes something */
2489                                         assert(OFFSET(vftbl_t, interfacetable[0]) == 0);
2490
2491                                         /* this does: REG_ITMP3 - superindex * sizeof(methodptr*) */
2492                                         assert(sizeof(methodptr*) == 4);
2493                                         M_SUB(REG_ITMP2, REG_ITMP3, REG_LSL(REG_ITMP2, 2));
2494
2495                                         s2 = 0;
2496
2497                                 } else {
2498
2499                                         s2 = OFFSET(vftbl_t, interfacetable[0]) -
2500                                                                 superindex * sizeof(methodptr*);
2501
2502                                 }
2503
2504                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, s2);
2505                                 M_TST(REG_ITMP3, REG_ITMP3);
2506                                 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_ITMP3, s1);
2507
2508                                 if (super == NULL)
2509                                         emit_label_br(cd, BRANCH_LABEL_4);
2510                                 else
2511                                         emit_label(cd, BRANCH_LABEL_3);
2512                         }
2513
2514                         /* class checkcast code */
2515
2516                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2517                                 if (super == NULL) {
2518                                         emit_label(cd, BRANCH_LABEL_2);
2519
2520                                         disp = dseg_add_unique_address(cd, NULL);
2521
2522                                         codegen_addpatchref(cd, PATCHER_checkcast_instanceof_class,
2523                                                             iptr->sx.s23.s3.c.ref,
2524                                                                                 disp);
2525
2526                                         if (opt_showdisassemble)
2527                                                 M_NOP;
2528                                 }
2529                                 else {
2530                                         disp = dseg_add_address(cd, super->vftbl);
2531
2532                                         M_TST(s1, s1);
2533                                         emit_label_beq(cd, BRANCH_LABEL_5);
2534                                 }
2535
2536                                 M_LDR_INTERN(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2537                                 M_DSEG_LOAD(REG_ITMP3, disp);
2538
2539                                 CODEGEN_CRITICAL_SECTION_START;
2540
2541                                 M_LDR_INTERN(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, baseval));
2542                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, baseval));
2543                                 M_SUB(REG_ITMP2, REG_ITMP2, REG_ITMP3);
2544                                 M_DSEG_LOAD(REG_ITMP3, disp);
2545                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, diffval));
2546
2547                                 CODEGEN_CRITICAL_SECTION_END;
2548
2549                                 M_CMP(REG_ITMP2, REG_ITMP3);
2550                                 emit_classcast_check(cd, iptr, BRANCH_UGT, 0, s1);
2551
2552                                 if (super != NULL)
2553                                         emit_label(cd, BRANCH_LABEL_5);
2554                         }
2555
2556                         if (super == NULL) {
2557                                 emit_label(cd, BRANCH_LABEL_1);
2558                                 emit_label(cd, BRANCH_LABEL_4);
2559                         }
2560
2561                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
2562                         }
2563                         else {
2564                                 /* array type cast-check */
2565
2566                                 s1 = emit_load_s1(jd, iptr, REG_A0);
2567                                 M_INTMOVE(s1, REG_A0);
2568
2569                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2570                                         disp = dseg_add_unique_address(cd, NULL);
2571
2572                                         codegen_addpatchref(cd, PATCHER_builtin_arraycheckcast,
2573                                                                                 iptr->sx.s23.s3.c.ref,
2574                                                                                 disp);
2575
2576                                         if (opt_showdisassemble)
2577                                                 M_NOP;
2578                                 }
2579                                 else
2580                                         disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2581
2582                                 M_DSEG_LOAD(REG_A1, disp);
2583                                 disp = dseg_add_functionptr(cd, BUILTIN_arraycheckcast);
2584                                 M_DSEG_BRANCH(disp);
2585
2586                                 /* recompute pv */
2587                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2588                                 M_RECOMPUTE_PV(disp);
2589
2590                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2591                                 M_TST(REG_RESULT, REG_RESULT);
2592                                 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_RESULT, s1);
2593
2594                                 d = codegen_reg_of_dst(jd, iptr, s1);
2595                         }
2596
2597                         M_INTMOVE(s1, d);
2598                         emit_store_dst(jd, iptr, d);
2599                         break;
2600
2601                 case ICMD_INSTANCEOF: /* ..., objectref ==> ..., intresult            */
2602
2603                         {
2604                         classinfo *super;
2605                         s4         superindex;
2606
2607                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2608                                 super      = NULL;
2609                                 superindex = 0;
2610                         }
2611                         else {
2612                                 super      = iptr->sx.s23.s3.c.cls;
2613                                 superindex = super->index;
2614                         }
2615
2616                         if ((super == NULL) || !(super->flags & ACC_INTERFACE))
2617                                 CODEGEN_CRITICAL_SECTION_NEW;
2618
2619                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2620                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
2621
2622                         if (s1 == d) {
2623                                 M_MOV(REG_ITMP1, s1);
2624                                 s1 = REG_ITMP1;
2625                         }
2626
2627                         /* if class is not resolved, check which code to call */
2628
2629                         if (super == NULL) {
2630                                 M_EOR(d, d, d);
2631
2632                                 M_TST(s1, s1);
2633                                 emit_label_beq(cd, BRANCH_LABEL_1);
2634
2635                                 disp = dseg_add_unique_s4(cd, 0); /* super->flags */
2636                                 codegen_addpatchref(cd, PATCHER_checkcast_instanceof_flags,
2637                                                     iptr->sx.s23.s3.c.ref, disp);
2638
2639                                 if (opt_showdisassemble)
2640                                         M_NOP;
2641
2642                                 M_DSEG_LOAD(REG_ITMP2, disp);
2643                                 disp = dseg_add_s4(cd, ACC_INTERFACE);
2644                                 M_DSEG_LOAD(REG_ITMP3, disp);
2645                                 M_TST(REG_ITMP2, REG_ITMP3);
2646                                 emit_label_beq(cd, BRANCH_LABEL_2);
2647                         }
2648
2649                         /* interface checkcast code */
2650
2651                         if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2652                                 if ((super == NULL) || !IS_IMM(superindex)) {
2653                                         disp = dseg_add_unique_s4(cd, superindex);
2654                                 }
2655                                 if (super == NULL) {
2656                                         /* If d == REG_ITMP2, then it's destroyed in check
2657                                            code above.  */
2658                                         if (d == REG_ITMP2)
2659                                                 M_EOR(d, d, d);
2660
2661                                         codegen_addpatchref(cd,
2662                                                             PATCHER_checkcast_instanceof_interface,
2663                                                             iptr->sx.s23.s3.c.ref, disp);
2664
2665                                         if (opt_showdisassemble)
2666                                                 M_NOP;
2667                                 }
2668                                 else {
2669                                         M_EOR(d, d, d);
2670                                         M_TST(s1, s1);
2671                                         emit_label_beq(cd, BRANCH_LABEL_3);
2672                                 }
2673
2674                                 M_LDR_INTERN(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
2675                                 M_LDR_INTERN(REG_ITMP3,
2676                                                          REG_ITMP1, OFFSET(vftbl_t, interfacetablelength));
2677
2678                                 /* we put unresolved or non-immediate superindices onto dseg
2679                                    and do things slightly different */
2680                                 if ((super == NULL) || !IS_IMM(superindex)) {
2681                                         /* disp was computed before we added the patcher */
2682                                         M_DSEG_LOAD(REG_ITMP2, disp);
2683                                         M_CMP(REG_ITMP3, REG_ITMP2);
2684
2685                                         if (d == REG_ITMP2) {
2686                                                 M_EORLE(d, d, d);
2687                                                 M_BLE(4);
2688                                         } else {
2689                                                 M_BLE(3);
2690                                         }
2691
2692                                         /* this assumes something */
2693                                         assert(OFFSET(vftbl_t, interfacetable[0]) == 0);
2694
2695                                         /* this does: REG_ITMP3 - superindex * sizeof(methodptr*) */
2696                                         assert(sizeof(methodptr*) == 4);
2697                                         M_SUB(REG_ITMP1, REG_ITMP1, REG_LSL(REG_ITMP2, 2));
2698
2699                                         if (d == REG_ITMP2) {
2700                                                 M_EOR(d, d, d);
2701                                         }
2702
2703                                         s2 = 0;
2704
2705                                 } else {
2706                                         assert(IS_IMM(superindex));
2707                                         M_CMP_IMM(REG_ITMP3, superindex);
2708
2709                                         M_BLE(2);
2710
2711                                         s2 = OFFSET(vftbl_t, interfacetable[0]) -
2712                                                 superindex * sizeof(methodptr*);
2713
2714                                 }
2715
2716                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP1, s2);
2717                                 M_TST(REG_ITMP3, REG_ITMP3);
2718                                 M_MOVNE_IMM(1, d);
2719
2720                                 if (super == NULL)
2721                                         emit_label_br(cd, BRANCH_LABEL_4);
2722                                 else
2723                                         emit_label(cd, BRANCH_LABEL_3);
2724                         }
2725
2726                         /* class checkcast code */
2727
2728                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2729                                 if (super == NULL) {
2730                                         emit_label(cd, BRANCH_LABEL_2);
2731
2732                                         disp = dseg_add_unique_address(cd, NULL);
2733
2734                                         codegen_addpatchref(cd, PATCHER_checkcast_instanceof_class,
2735                                                             iptr->sx.s23.s3.c.ref,
2736                                                                                 disp);
2737
2738                                         if (opt_showdisassemble)
2739                                                 M_NOP;
2740                                 }
2741                                 else {
2742                                         disp = dseg_add_address(cd, super->vftbl);
2743
2744                                         M_EOR(d, d, d);
2745                                         M_TST(s1, s1);
2746                                         emit_label_beq(cd, BRANCH_LABEL_5);
2747                                 }
2748
2749                                 M_LDR_INTERN(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
2750                                 M_DSEG_LOAD(REG_ITMP2, disp);
2751
2752                                 CODEGEN_CRITICAL_SECTION_START;
2753
2754                                 M_LDR_INTERN(REG_ITMP1, REG_ITMP1, OFFSET(vftbl_t, baseval));
2755                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2756                                 M_LDR_INTERN(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2757
2758                                 CODEGEN_CRITICAL_SECTION_END;
2759
2760                                 M_SUB(REG_ITMP1, REG_ITMP1, REG_ITMP3);
2761                                 M_CMP(REG_ITMP1, REG_ITMP2);
2762                                 /* If d == REG_ITMP2, then it's destroyed */
2763                                 if (d == REG_ITMP2)
2764                                         M_EOR(d, d, d);
2765                                 M_MOVLS_IMM(1, d);
2766
2767                                 if (super != NULL)
2768                                         emit_label(cd, BRANCH_LABEL_5);
2769                         }
2770
2771                         if (super == NULL) {
2772                                 emit_label(cd, BRANCH_LABEL_1);
2773                                 emit_label(cd, BRANCH_LABEL_4);
2774                         }
2775
2776                         }
2777
2778                         emit_store_dst(jd, iptr, d);
2779                         break;
2780
2781                 case ICMD_MULTIANEWARRAY:/* ..., cnt1, [cnt2, ...] ==> ..., arrayref  */
2782
2783                         /* copy sizes to stack if necessary  */
2784
2785                         MCODECHECK((iptr->s1.argcount << 1) + 64);
2786
2787                         for (s1 = iptr->s1.argcount; --s1 >= 0; ) {
2788
2789                                 var = VAR(iptr->sx.s23.s2.args[s1]);
2790
2791                                 /* copy SAVEDVAR sizes to stack */
2792
2793                                 if (!(var->flags & PREALLOC)) {
2794                                         s2 = emit_load(jd, iptr, var, REG_ITMP1);
2795                                         M_STR(s2, REG_SP, s1 * 4);
2796                                 }
2797                         }
2798
2799                         /* a0 = dimension count */
2800
2801                         assert(IS_IMM(iptr->s1.argcount));
2802                         M_MOV_IMM(REG_A0, iptr->s1.argcount);
2803
2804                         /* is patcher function set? */
2805
2806                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2807                                 disp = dseg_add_unique_address(cd, NULL);
2808
2809                                 codegen_addpatchref(cd, PATCHER_builtin_multianewarray,
2810                                                                         iptr->sx.s23.s3.c.ref, disp);
2811
2812                                 if (opt_showdisassemble)
2813                                         M_NOP;
2814                         }
2815                         else
2816                                 disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2817
2818                         /* a1 = arraydescriptor */
2819
2820                         M_DSEG_LOAD(REG_A1, disp);
2821
2822                         /* a2 = pointer to dimensions = stack pointer */
2823
2824                         M_INTMOVE(REG_SP, REG_A2);
2825
2826                         /* call builtin_multianewarray here */
2827
2828                         disp = dseg_add_functionptr(cd, BUILTIN_multianewarray);
2829                         M_DSEG_BRANCH(disp);
2830
2831                         /* recompute pv */
2832
2833                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2834                         M_RECOMPUTE_PV(s1);
2835
2836                         /* check for exception before result assignment */
2837
2838                         emit_exception_check(cd, iptr);
2839
2840                         /* get arrayref */
2841
2842                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2843                         M_INTMOVE(REG_RESULT, d);
2844                         emit_store_dst(jd, iptr, d);
2845                         break;
2846
2847                 case ICMD_CHECKNULL:  /* ..., objectref  ==> ..., objectref           */
2848
2849                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2850                         emit_nullpointer_check(cd, iptr, s1);
2851                         break;
2852
2853                 default:
2854                         exceptions_throw_internalerror("Unknown ICMD %d during code generation",
2855                                                                                    iptr->opc);
2856                         return false;
2857                 } /* the big switch */
2858
2859                 } /* for all instructions */
2860
2861         } /* for all basic blocks */
2862
2863         dseg_createlinenumbertable(cd);
2864
2865
2866         /* generate stubs */
2867
2868         emit_patcher_stubs(jd);
2869
2870         /* everything's ok */
2871
2872         return true;
2873 }
2874
2875
2876 /* codegen_emit_stub_compiler **************************************************
2877
2878    Emits a stub routine which calls the compiler.
2879
2880 *******************************************************************************/
2881
2882 void codegen_emit_stub_compiler(jitdata *jd)
2883 {
2884         methodinfo  *m;
2885         codegendata *cd;
2886
2887         /* get required compiler data */
2888
2889         m  = jd->m;
2890         cd = jd->cd;
2891
2892         /* code for the stub */
2893
2894         M_LDR_INTERN(REG_ITMP1, REG_PC, -(2 * 4 + 2 * SIZEOF_VOID_P));
2895         M_LDR_INTERN(REG_PC, REG_PC, -(3 * 4 + 3 * SIZEOF_VOID_P));
2896 }
2897
2898
2899 /* codegen_emit_stub_native ****************************************************
2900
2901    Emits a stub routine which calls a native method.
2902
2903 *******************************************************************************/
2904
2905 void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f)
2906 {
2907         methodinfo  *m;
2908         codeinfo    *code;
2909         codegendata *cd;
2910         s4           nativeparams;
2911         methoddesc  *md;
2912         s4           i, j;
2913         s4           t;
2914         s4           disp, funcdisp, s1, s2;
2915
2916         /* get required compiler data */
2917
2918         m    = jd->m;
2919         code = jd->code;
2920         cd   = jd->cd;
2921
2922         /* initialize variables */
2923
2924         md = m->parseddesc;
2925         nativeparams = (m->flags & ACC_STATIC) ? 2 : 1;
2926
2927         /* calculate stackframe size */
2928
2929         cd->stackframesize =
2930                 4 +                                                /* return address  */
2931                 sizeof(stackframeinfo) +                           /* stackframeinfo  */
2932                 sizeof(localref_table) +                           /* localref_table  */
2933                 nmd->memuse * 4;                                   /* stack arguments */
2934
2935         /* align stack to 8-byte */
2936
2937         cd->stackframesize = (cd->stackframesize + 4) & ~4;
2938
2939         /* create method header */
2940
2941         (void) dseg_add_unique_address(cd, code);              /* CodeinfoPointer */
2942         (void) dseg_add_unique_s4(cd, cd->stackframesize);     /* FrameSize       */
2943         (void) dseg_add_unique_s4(cd, 0);                      /* IsSync          */
2944         (void) dseg_add_unique_s4(cd, 0);                      /* IsLeaf          */
2945         (void) dseg_add_unique_s4(cd, 0);                      /* IntSave         */
2946         (void) dseg_add_unique_s4(cd, 0);                      /* FltSave         */
2947         (void) dseg_addlinenumbertablesize(cd);
2948         (void) dseg_add_unique_s4(cd, 0);                      /* ExTableSize     */
2949
2950         /* generate stub code */
2951
2952         M_STMFD(1<<REG_LR, REG_SP);
2953         M_SUB_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - 1);
2954
2955 #if !defined(NDEBUG)
2956         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
2957                 emit_verbosecall_enter(jd);
2958 #endif
2959
2960         /* get function address (this must happen before the stackframeinfo) */
2961
2962         funcdisp = dseg_add_functionptr(cd, f);
2963
2964 #if !defined(WITH_STATIC_CLASSPATH)
2965         if (f == NULL) {
2966                 codegen_addpatchref(cd, PATCHER_resolve_native, m, funcdisp);
2967
2968                 if (opt_showdisassemble)
2969                         M_NOP;
2970         }
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         /* TODO: floating point */
2978
2979         /* create native stackframe info */
2980
2981         assert(IS_IMM(4*4 + cd->stackframesize));
2982         M_ADD_IMM(REG_A0, REG_SP, 4*4 + cd->stackframesize - SIZEOF_VOID_P);
2983         M_MOV(REG_A1, REG_PV);
2984         M_ADD_IMM(REG_A2, REG_SP, 4*4 + cd->stackframesize);
2985         M_LDR_INTERN(REG_A3, REG_SP, 4*4 + cd->stackframesize - SIZEOF_VOID_P);
2986         disp = dseg_add_functionptr(cd, codegen_start_native_call);
2987         M_DSEG_BRANCH(disp);
2988
2989         /* recompute pv */
2990
2991         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2992         M_RECOMPUTE_PV(s1);
2993
2994         /* Restore integer and float argument registers (these are 4
2995            registers, stack is 8-byte aligned). */
2996
2997         M_LDMFD(BITMASK_ARGS, REG_SP);
2998         /* TODO: floating point */
2999
3000         /* copy or spill arguments to new locations */
3001         /* ATTENTION: the ARM has only integer argument registers! */
3002
3003         for (i = md->paramcount - 1, j = i + nativeparams; i >= 0; i--, j--) {
3004                 t = md->paramtypes[i].type;
3005
3006                 if (!md->params[i].inmemory) {
3007                         s1 = md->params[i].regoff;
3008                         s2 = nmd->params[j].regoff;
3009
3010                         if (!nmd->params[j].inmemory) {
3011 #if !defined(__ARM_EABI__)
3012                                 SPLIT_OPEN(t, s2, REG_ITMP1);
3013 #endif
3014
3015                                 if (IS_2_WORD_TYPE(t))
3016                                         M_LNGMOVE(s1, s2);
3017                                 else
3018                                         M_INTMOVE(s1, s2);
3019
3020 #if !defined(__ARM_EABI__)
3021                                 SPLIT_STORE_AND_CLOSE(t, s2, 0);
3022 #endif
3023                         }
3024                         else {
3025                                 if (IS_2_WORD_TYPE(t))
3026                                         M_LST(s1, REG_SP, s2);
3027                                 else
3028                                         M_IST(s1, REG_SP, s2);
3029                         }
3030                 }
3031                 else {
3032                         s1 = md->params[i].regoff + cd->stackframesize;
3033                         s2 = nmd->params[j].regoff;
3034
3035                         if (IS_2_WORD_TYPE(t)) {
3036                                 M_LLD(REG_ITMP12_PACKED, REG_SP, s1);
3037                                 M_LST(REG_ITMP12_PACKED, REG_SP, s2);
3038                         }
3039                         else {
3040                                 M_ILD(REG_ITMP1, REG_SP, s1);
3041                                 M_IST(REG_ITMP1, REG_SP, s2);
3042                         }
3043                 }
3044         }
3045
3046         /* put class into second argument register */
3047
3048         if (m->flags & ACC_STATIC) {
3049                 disp = dseg_add_address(cd, m->class);
3050                 M_DSEG_LOAD(REG_A1, disp);
3051         }
3052
3053         /* put env into first argument register */
3054
3055         disp = dseg_add_address(cd, _Jv_env);
3056         M_DSEG_LOAD(REG_A0, disp);
3057
3058         /* do the native function call */
3059
3060         M_DSEG_BRANCH(funcdisp);
3061
3062         /* recompute pv */
3063         /* TODO: this is only needed because of the tracer ... do we
3064            really need it? */
3065
3066         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3067         M_RECOMPUTE_PV(s1);
3068
3069 #if !defined(__SOFTFP__)
3070         /* TODO: this is only a hack, since we use R0/R1 for float return! */
3071         /* this depends on gcc; it is independent from our ENABLE_SOFTFLOAT define */
3072         if (md->returntype.type != TYPE_VOID && IS_FLT_DBL_TYPE(md->returntype.type)) {
3073 #if 0 && !defined(NDEBUG)
3074                 dolog("NATIVESTUB that returns float or double (%s.%s)", m->class->name->text, m->name->text);
3075 #endif
3076                 /* we cannot use this macro, since it is not defined in ENABLE_SOFTFLOAT */
3077                 /* M_CAST_FLT_TO_INT_TYPED(md->returntype.type, REG_FRESULT, REG_RESULT_TYPED(md->returntype.type)); */
3078                 if (IS_2_WORD_TYPE(md->returntype.type)) {
3079                         DCD(0xed2d8102); /* stfd    f0, [sp, #-8]! */
3080                         M_LDRD_UPDATE(REG_RESULT_PACKED, REG_SP, 8);
3081                 } else {
3082                         DCD(0xed2d0101); /* stfs    f0, [sp, #-4]!*/
3083                         M_LDR_UPDATE(REG_RESULT, REG_SP, 4);
3084                 }
3085         }
3086 #endif
3087
3088 #if !defined(NDEBUG)
3089         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
3090                 emit_verbosecall_exit(jd);
3091 #endif
3092
3093         /* remove native stackframe info */
3094         /* TODO: improve this store/load */
3095
3096         M_STMFD(BITMASK_RESULT, REG_SP);
3097
3098         M_ADD_IMM(REG_A0, REG_SP, 2*4 + cd->stackframesize - SIZEOF_VOID_P);
3099         disp = dseg_add_functionptr(cd, codegen_finish_native_call);
3100         M_DSEG_BRANCH(disp);
3101         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3102         M_RECOMPUTE_PV(s1);
3103
3104         M_MOV(REG_ITMP1_XPTR, REG_RESULT);
3105         M_LDMFD(BITMASK_RESULT, REG_SP);
3106
3107         /* finish stub code, but do not yet return to caller */
3108
3109         M_ADD_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - 1);
3110         M_LDMFD(1<<REG_LR, REG_SP);
3111
3112         /* check for exception */
3113
3114         M_TST(REG_ITMP1_XPTR, REG_ITMP1_XPTR);
3115         M_MOVEQ(REG_LR, REG_PC);            /* if no exception, return to caller  */
3116
3117         /* handle exception here */
3118
3119         M_SUB_IMM(REG_ITMP2_XPC, REG_LR, 4);/* move fault address into xpc        */
3120
3121         disp = dseg_add_functionptr(cd, asm_handle_nat_exception);
3122         M_DSEG_LOAD(REG_ITMP3, disp);       /* load asm exception handler address */
3123         M_MOV(REG_PC, REG_ITMP3);           /* jump to asm exception handler      */
3124
3125         /* generate patcher stubs */
3126
3127         emit_patcher_stubs(jd);
3128 }
3129
3130
3131 /* asm_debug *******************************************************************
3132
3133    Lazy debugger!
3134
3135 *******************************************************************************/
3136
3137 void asm_debug(int a1, int a2, int a3, int a4)
3138 {
3139         printf("===> i am going to exit after this debugging message!\n");
3140         printf("got asm_debug(%p, %p, %p, %p)\n",(void*)a1,(void*)a2,(void*)a3,(void*)a4);
3141         vm_abort("leave you now");
3142 }
3143
3144
3145 /*
3146  * These are local overrides for various environment variables in Emacs.
3147  * Please do not remove this and leave it at the end of the file, where
3148  * Emacs will automagically detect them.
3149  * ---------------------------------------------------------------------
3150  * Local variables:
3151  * mode: c
3152  * indent-tabs-mode: t
3153  * c-basic-offset: 4
3154  * tab-width: 4
3155  * End:
3156  * vim:noexpandtab:sw=4:ts=4:
3157  */