src/vm/jit/arm/codegen.c

   1 /* src/vm/jit/arm/codegen.c - machine code generator for Arm
   2
   3    Copyright (C) 1996-2005, 2006, 2007 R. Grafl, A. Krall, C. Kruegel,
   4    C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
   5    E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
   6    J. Wenninger, Institut f. Computersprachen - TU Wien
   7
   8    This file is part of CACAO.
   9
  10    This program is free software; you can redistribute it and/or
  11    modify it under the terms of the GNU General Public License as
  12    published by the Free Software Foundation; either version 2, or (at
  13    your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful, but
  16    WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18    General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program; if not, write to the Free Software
  22    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  23    02110-1301, USA.
  24
  25 */
  26
  27
  28 #include "config.h"
  29
  30 #include <assert.h>
  31 #include <stdio.h>
  32
  33 #include "vm/types.h"
  34
  35 #include "md-abi.h"
  36
  37 #include "vm/jit/arm/arch.h"
  38 #include "vm/jit/arm/codegen.h"
  39
  40 #include "mm/memory.h"
  41
  42 #include "native/localref.h"
  43 #include "native/native.h"
  44
  45 #include "threads/lock-common.h"
  46
  47 #include "vm/builtin.h"
  48 #include "vm/exceptions.h"
  49 #include "vm/global.h"
  50 #include "vm/vm.h"
  51
  52 #include "vm/jit/abi.h"
  53 #include "vm/jit/asmpart.h"
  54 #include "vm/jit/codegen-common.h"
  55 #include "vm/jit/dseg.h"
  56 #include "vm/jit/emit-common.h"
  57 #include "vm/jit/jit.h"
  58 #include "vm/jit/md.h"
  59 #include "vm/jit/methodheader.h"
  60 #include "vm/jit/parse.h"
  61 #include "vm/jit/patcher-common.h"
  62 #include "vm/jit/reg.h"
  63
  64 #if defined(ENABLE_LSRA)
  65 #include "vm/jit/allocator/lsra.h"
  66 #endif
  67
  68 #include "vmcore/loader.h"
  69 #include "vmcore/options.h"
  70
  71
  72 /* codegen_emit ****************************************************************
  73
  74    Generates machine code.
  75
  76 *******************************************************************************/
  77
  78 bool codegen_emit(jitdata *jd)
  79 {
  80         methodinfo         *m;
  81         codeinfo           *code;
  82         codegendata        *cd;
  83         registerdata       *rd;
  84         s4              i, t, len;
  85         s4              s1, s2, s3, d;
  86         s4              disp;
  87         varinfo        *var;
  88         basicblock     *bptr;
  89         instruction    *iptr;
  90         exception_entry *ex;
  91
  92         s4              spilledregs_num;
  93         s4              savedregs_num;
  94         u2              savedregs_bitmask;
  95         u2              currentline;
  96
  97         methodinfo         *lm;             /* local methodinfo for ICMD_INVOKE* */
  98         unresolved_method  *um;
  99         builtintable_entry *bte;
 100         methoddesc         *md;
 101         fieldinfo          *fi;
 102         unresolved_field   *uf;
 103         int                 fieldtype;
 104         int                 varindex;
 105
 106         /* get required compiler data */
 107
 108         m    = jd->m;
 109         code = jd->code;
 110         cd   = jd->cd;
 111         rd   = jd->rd;
 112
 113         /* prevent compiler warnings */
 114
 115         lm  = NULL;
 116         um  = NULL;
 117         bte = NULL;
 118
 119         fieldtype = -1;
 120
 121         /* space to save used callee saved registers */
 122
 123         savedregs_num = (jd->isleafmethod) ? 0 : 1;       /* space to save the LR */
 124         savedregs_num += (INT_SAV_CNT - rd->savintreguse);
 125         /*savedregs_num += (FLT_SAV_CNT - rd->savfltreguse);*/
 126         assert((FLT_SAV_CNT - rd->savfltreguse) == 0);
 127
 128         spilledregs_num = rd->memuse;
 129
 130 #if defined(ENABLE_THREADS)        /* space to save argument of monitor_enter */
 131         if (checksync && (m->flags & ACC_SYNCHRONIZED))
 132                 spilledregs_num++;
 133 #endif
 134
 135         cd->stackframesize = spilledregs_num * 8 + savedregs_num * 4;
 136
 137         /* XXX QUICK FIX: We shouldn't align the stack in Java code, but
 138            only in native stubs. */
 139         /* align stack to 8-byte */
 140
 141         cd->stackframesize = (cd->stackframesize + 4) & ~4;
 142
 143         /* SECTION: Method Header */
 144         /* create method header */
 145
 146         (void) dseg_add_unique_address(cd, code);              /* CodeinfoPointer */
 147         (void) dseg_add_unique_s4(cd, cd->stackframesize);     /* FrameSize       */
 148
 149 #if defined(ENABLE_THREADS)
 150         /* IsSync contains the offset relative to the stack pointer for the
 151            argument of monitor_exit used in the exception handler. Since the
 152            offset could be zero and give a wrong meaning of the flag it is
 153            offset by one.
 154         */
 155
 156         if (checksync && (m->flags & ACC_SYNCHRONIZED))
 157                 (void) dseg_add_unique_s4(cd, rd->memuse * 8 + 4);/* IsSync         */
 158         else
 159 #endif
 160                 (void) dseg_add_unique_s4(cd, 0);                  /* IsSync          */
 161
 162         (void) dseg_add_unique_s4(cd, jd->isleafmethod);       /* IsLeaf          */
 163         (void) dseg_add_unique_s4(cd, INT_SAV_CNT - rd->savintreguse); /* IntSave */
 164         (void) dseg_add_unique_s4(cd, FLT_SAV_CNT - rd->savfltreguse); /* FltSave */
 165         (void) dseg_addlinenumbertablesize(cd);
 166         (void) dseg_add_unique_s4(cd, jd->exceptiontablelength); /* ExTableSize   */
 167
 168         /* create exception table */
 169
 170         for (ex = jd->exceptiontable; ex != NULL; ex = ex->down) {
 171                 dseg_add_target(cd, ex->start);
 172                 dseg_add_target(cd, ex->end);
 173                 dseg_add_target(cd, ex->handler);
 174                 (void) dseg_add_unique_address(cd, ex->catchtype.any);
 175         }
 176
 177         /* save return address and used callee saved registers */
 178
 179         savedregs_bitmask = 0;
 180
 181         if (!jd->isleafmethod)
 182                 savedregs_bitmask = (1<<REG_LR);
 183
 184         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--)
 185                 savedregs_bitmask |= (1<<(rd->savintregs[i]));
 186
 187 #if !defined(NDEBUG)
 188         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
 189                 log_text("!!! CODEGEN: floating-point callee saved registers are not saved to stack (SEVERE! STACK IS MESSED UP!)");
 190                 /* TODO: floating-point */
 191         }
 192 #endif
 193
 194         if (savedregs_bitmask)
 195                 M_STMFD(savedregs_bitmask, REG_SP);
 196
 197         /* create additional stack frame for spilled variables (if necessary) */
 198
 199         if ((cd->stackframesize / 4 - savedregs_num) > 0)
 200                 M_SUB_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - savedregs_num);
 201
 202         /* take arguments out of register or stack frame */
 203
 204         md = m->parseddesc;
 205         for (i = 0, len = 0; i < md->paramcount; i++) {
 206                 s1 = md->params[i].regoff;
 207                 t = md->paramtypes[i].type;
 208
 209                 varindex = jd->local_map[len * 5 + t];
 210
 211                 len += (IS_2_WORD_TYPE(t)) ? 2 : 1;          /* 2 word type arguments */
 212
 213                 if (varindex == UNUSED)
 214                         continue;
 215
 216                 var = VAR(varindex);
 217
 218                 /* ATTENTION: we use interger registers for all arguments (even float) */
 219 #if !defined(ENABLE_SOFTFLOAT)
 220                 if (IS_INT_LNG_TYPE(t)) {
 221 #endif
 222                         if (!md->params[i].inmemory) {
 223                                 if (!(var->flags & INMEMORY)) {
 224                                         if (IS_2_WORD_TYPE(t))
 225                                                 M_LNGMOVE(s1, var->vv.regoff);
 226                                         else
 227                                                 M_INTMOVE(s1, var->vv.regoff);
 228                                 }
 229                                 else {
 230                                         if (IS_2_WORD_TYPE(t))
 231                                                 M_LST(s1, REG_SP, var->vv.regoff);
 232                                         else
 233                                                 M_IST(s1, REG_SP, var->vv.regoff);
 234                                 }
 235                         }
 236                         else {                                   /* stack arguments       */
 237                                 if (!(var->flags & INMEMORY)) {      /* stack arg -> register */
 238                                         if (IS_2_WORD_TYPE(t))
 239                                                 M_LLD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 240                                         else
 241                                                 M_ILD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 242                                 }
 243                                 else {                               /* stack arg -> spilled  */
 244                                         /* Reuse Memory Position on Caller Stack */
 245                                         var->vv.regoff = cd->stackframesize + s1;
 246                                 }
 247                         }
 248 #if !defined(ENABLE_SOFTFLOAT)
 249                 }
 250                 else {
 251                         if (!md->params[i].inmemory) {
 252                                 if (!(var->flags & INMEMORY)) {
 253                                         if (IS_2_WORD_TYPE(t))
 254                                                 M_CAST_L2D(s1, var->vv.regoff);
 255                                         else
 256                                                 M_CAST_I2F(s1, var->vv.regoff);
 257                                 }
 258                                 else {
 259                                         if (IS_2_WORD_TYPE(t))
 260                                                 M_LST(s1, REG_SP, var->vv.regoff);
 261                                         else
 262                                                 M_IST(s1, REG_SP, var->vv.regoff);
 263                                 }
 264                         }
 265                         else {
 266                                 if (!(var->flags & INMEMORY)) {
 267                                         if (IS_2_WORD_TYPE(t))
 268                                                 M_DLD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 269                                         else
 270                                                 M_FLD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 271                                 }
 272                                 else {
 273                                         /* Reuse Memory Position on Caller Stack */
 274                                         var->vv.regoff = cd->stackframesize + s1;
 275                                 }
 276                         }
 277                 }
 278 #endif /* !defined(ENABLE_SOFTFLOAT) */
 279         }
 280
 281 #if defined(ENABLE_THREADS)
 282         /* call monitorenter function */
 283
 284         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
 285                 /* stack offset for monitor argument */
 286
 287                 s1 = rd->memuse * 8;
 288
 289 # if !defined(NDEBUG)
 290                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 291                         M_STMFD(BITMASK_ARGS, REG_SP);
 292                         s1 += 4 * 4;
 293                 }
 294 # endif
 295
 296                 /* get the correct lock object */
 297
 298                 if (m->flags & ACC_STATIC) {
 299                         disp = dseg_add_address(cd, &m->class->object.header);
 300                         M_DSEG_LOAD(REG_A0, disp);
 301                 }
 302                 else {
 303                         emit_nullpointer_check_force(cd, iptr, REG_A0);
 304                 }
 305
 306                 M_STR(REG_A0, REG_SP, s1);
 307                 disp = dseg_add_functionptr(cd, LOCK_monitor_enter);
 308                 M_DSEG_BRANCH(disp);
 309                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
 310                 M_RECOMPUTE_PV(s1);
 311
 312 # if !defined(NDEBUG)
 313                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
 314                         M_LDMFD(BITMASK_ARGS, REG_SP);
 315 # endif
 316         }
 317 #endif
 318
 319 #if !defined(NDEBUG)
 320         /* call trace function */
 321
 322         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
 323                 emit_verbosecall_enter(jd);
 324 #endif
 325
 326         /* end of header generation */
 327
 328         /* create replacement points */
 329         REPLACEMENT_POINTS_INIT(cd, jd);
 330
 331         /* SECTION: ICMD Code Generation */
 332         /* for all basic blocks */
 333
 334         for (bptr = jd->basicblocks; bptr != NULL; bptr = bptr->next) {
 335
 336                 bptr->mpc = (s4) (cd->mcodeptr - cd->mcodebase);
 337
 338                 /* is this basic block reached? */
 339
 340                 if (bptr->flags < BBREACHED)
 341                         continue;
 342
 343                 /* branch resolving */
 344
 345                 codegen_resolve_branchrefs(cd, bptr);
 346
 347                 /* handle replacement points */
 348                 REPLACEMENT_POINT_BLOCK_START(cd, bptr);
 349
 350                 /* copy interface registers to their destination */
 351
 352                 len = bptr->indepth;
 353
 354                 MCODECHECK(64+len);
 355
 356 #if defined(ENABLE_LSRA)
 357                 if (opt_lsra) {
 358                 while (len) {
 359                         len--;
 360                         var = VAR(bptr->invars[len]);
 361                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 362                                 if (!(var->flags & INMEMORY))
 363                                         d= var->vv.regoff;
 364                                 else
 365                                         d=REG_ITMP1;
 366                                 M_INTMOVE(REG_ITMP1, d);
 367                                 emit_store(jd, NULL, var, d);
 368                         }
 369                 }
 370                 } else {
 371 #endif
 372                 while (len) {
 373                         len--;
 374                         var = VAR(bptr->invars[len]);
 375
 376                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 377                                 d = codegen_reg_of_var(0, var, REG_ITMP1);
 378                                 M_INTMOVE(REG_ITMP1, d);
 379                                 emit_store(jd, NULL, var, d);
 380                         }
 381                         else {
 382                                 assert((var->flags & INOUT));
 383                         }
 384                 }
 385 #if defined(ENABLE_LSRA)
 386                 }
 387 #endif
 388
 389                 /* for all instructions */
 390                 len = bptr->icount;
 391                 currentline = 0;
 392                 for (iptr = bptr->iinstr; len > 0; len--, iptr++) {
 393
 394                         /* add line number */
 395                         if (iptr->line != currentline) {
 396                                 dseg_addlinenumber(cd, iptr->line);
 397                                 currentline = iptr->line;
 398                         }
 399
 400                         MCODECHECK(64);   /* an instruction usually needs < 64 words      */
 401
 402                         /* the big switch */
 403                         switch (iptr->opc) {
 404                 case ICMD_NOP:        /* ... ==> ...                                  */
 405                         break;
 406
 407         /* constant operations ************************************************/
 408
 409                 case ICMD_ICONST:     /* ...  ==> ..., constant                       */
 410
 411                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 412                         ICONST(d, iptr->sx.val.i);
 413                         emit_store_dst(jd, iptr, d);
 414                         break;
 415
 416                 case ICMD_ACONST:     /* ... ==> ..., constant                        */
 417
 418                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 419                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
 420                                 disp = dseg_add_unique_address(cd, NULL);
 421
 422                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
 423                                                     iptr->sx.val.c.ref, disp);
 424
 425                                 M_DSEG_LOAD(d, disp);
 426                         }
 427                         else {
 428                                 ICONST(d, (u4) iptr->sx.val.anyptr);
 429                         }
 430                         emit_store_dst(jd, iptr, d);
 431                         break;
 432
 433                 case ICMD_LCONST:     /* ...  ==> ..., constant                       */
 434
 435                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 436                         LCONST(d, iptr->sx.val.l);
 437                         emit_store_dst(jd, iptr, d);
 438                         break;
 439
 440                 case ICMD_FCONST:     /* ...  ==> ..., constant                       */
 441
 442 #if defined(ENABLE_SOFTFLOAT)
 443                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 444                         ICONST(d, iptr->sx.val.i);
 445                         emit_store_dst(jd, iptr, d);
 446 #else
 447                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 448                         FCONST(d, iptr->sx.val.f);
 449                         emit_store_dst(jd, iptr, d);
 450 #endif
 451                         break;
 452
 453                 case ICMD_DCONST:     /* ...  ==> ..., constant                       */
 454
 455 #if defined(ENABLE_SOFTFLOAT)
 456                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 457                         LCONST(d, iptr->sx.val.l);
 458                         emit_store_dst(jd, iptr, d);
 459 #else
 460                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 461                         DCONST(d, iptr->sx.val.d);
 462                         emit_store_dst(jd, iptr, d);
 463 #endif
 464                         break;
 465
 466
 467                 /* load/store/copy/move operations ************************************/
 468
 469                 case ICMD_ILOAD:      /* ...  ==> ..., content of local variable      */
 470                 case ICMD_ALOAD:      /* op1 = local variable                         */
 471                 case ICMD_FLOAD:
 472                 case ICMD_LLOAD:
 473                 case ICMD_DLOAD:
 474                 case ICMD_ISTORE:     /* ..., value  ==> ...                          */
 475                 case ICMD_FSTORE:
 476                 case ICMD_LSTORE:
 477                 case ICMD_DSTORE:
 478                 case ICMD_COPY:
 479                 case ICMD_MOVE:
 480
 481                         emit_copy(jd, iptr);
 482                         break;
 483
 484                 case ICMD_ASTORE:
 485                         if (!(iptr->flags.bits & INS_FLAG_RETADDR))
 486                                 emit_copy(jd, iptr);
 487                         break;
 488
 489                 /* pop operations *****************************************************/
 490
 491                 /* attention: double and longs are only one entry in CACAO ICMDs      */
 492
 493                 case ICMD_POP:        /* ..., value  ==> ...                          */
 494                 case ICMD_POP2:       /* ..., value, value  ==> ...                   */
 495
 496                         break;
 497
 498
 499                 /* integer operations *************************************************/
 500
 501                 case ICMD_INT2BYTE:   /* ..., value  ==> ..., value                   */
 502
 503                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 504                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 505                         M_MOV(d, REG_LSL(s1, 24));
 506                         M_MOV(d, REG_ASR(d, 24));
 507                         emit_store_dst(jd, iptr, d);
 508                         break;
 509
 510                 case ICMD_INT2CHAR:   /* ..., value  ==> ..., value                   */
 511
 512                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 513                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 514                         M_MOV(d, REG_LSL(s1, 16));
 515                         M_MOV(d, REG_LSR(d, 16)); /* ATTENTION: char is unsigned */
 516                         emit_store_dst(jd, iptr, d);
 517                         break;
 518
 519                 case ICMD_INT2SHORT:  /* ..., value  ==> ..., value                   */
 520
 521                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 522                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 523                         M_MOV(d, REG_LSL(s1, 16));
 524                         M_MOV(d, REG_ASR(d, 16));
 525                         emit_store_dst(jd, iptr, d);
 526                         break;
 527
 528                 case ICMD_I2L:        /* ..., value  ==> ..., value                   */
 529
 530                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 531                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 532                         M_INTMOVE(s1, GET_LOW_REG(d));
 533                         M_MOV(GET_HIGH_REG(d), REG_ASR(s1, 31));
 534                         emit_store_dst(jd, iptr, d);
 535                         break;
 536
 537                 case ICMD_L2I:        /* ..., value  ==> ..., value                   */
 538
 539                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 540                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 541                         M_INTMOVE(s1, d);
 542                         emit_store_dst(jd, iptr, d);
 543                         break;
 544
 545                 case ICMD_INEG:       /* ..., value  ==> ..., - value                 */
 546
 547                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 548                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 549                         M_RSB_IMM(d, s1, 0);
 550                         emit_store_dst(jd, iptr, d);
 551                         break;
 552
 553                 case ICMD_LNEG:       /* ..., value  ==> ..., - value                 */
 554
 555                         s1 = emit_load_s1(jd, iptr, REG_ITMP12_PACKED);
 556                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 557                         M_RSB_IMMS(GET_LOW_REG(d), GET_LOW_REG(s1), 0);
 558                         M_RSC_IMM(GET_HIGH_REG(d), GET_HIGH_REG(s1), 0);
 559                         emit_store_dst(jd, iptr, d);
 560                         break;
 561
 562                 case ICMD_IADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 563
 564                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 565                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 566                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 567                         M_ADD(d, s1, s2);
 568                         emit_store_dst(jd, iptr, d);
 569                         break;
 570
 571                 case ICMD_LADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 572
 573                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 574                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 575                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 576                         M_ADD_S(GET_LOW_REG(d), s1, s2);
 577                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 578                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 579                         M_ADC(GET_HIGH_REG(d), s1, s2);
 580                         emit_store_dst(jd, iptr, d);
 581                         break;
 582
 583                 case ICMD_IADDCONST:
 584                 case ICMD_IINC:
 585
 586                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 587                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 588
 589                         if (IS_IMM(iptr->sx.val.i)) {
 590                                 M_ADD_IMM(d, s1, iptr->sx.val.i);
 591                         } else if (IS_IMM(-iptr->sx.val.i)) {
 592                                 M_SUB_IMM(d, s1, (-iptr->sx.val.i));
 593                         } else {
 594                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 595                                 M_ADD(d, s1, REG_ITMP3);
 596                         }
 597
 598                         emit_store_dst(jd, iptr, d);
 599                         break;
 600
 601                 case ICMD_LADDCONST:  /* ..., value  ==> ..., value + constant        */
 602                                       /* sx.val.l = constant                          */
 603
 604                         s3 = iptr->sx.val.l & 0xffffffff;
 605                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 606                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 607                         if (IS_IMM(s3))
 608                                 M_ADD_IMMS(GET_LOW_REG(d), s1, s3);
 609                         else {
 610                                 ICONST(REG_ITMP3, s3);
 611                                 M_ADD_S(GET_LOW_REG(d), s1, REG_ITMP3);
 612                         }
 613                         s3 = iptr->sx.val.l >> 32;
 614                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP2);
 615                         if (IS_IMM(s3))
 616                                 M_ADC_IMM(GET_HIGH_REG(d), s1, s3);
 617                         else {
 618                                 ICONST(REG_ITMP3, s3);
 619                                 M_ADC(GET_HIGH_REG(d), s1, REG_ITMP3);
 620                         }
 621                         emit_store_dst(jd, iptr, d);
 622                         break;
 623
 624                 case ICMD_ISUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 625
 626                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 627                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 628                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 629                         M_SUB(d, s1, s2);
 630                         emit_store_dst(jd, iptr, d);
 631                         break;
 632
 633                 case ICMD_LSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 634
 635                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 636                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 637                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 638                         M_SUB_S(GET_LOW_REG(d), s1, s2);
 639                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 640                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 641                         M_SBC(GET_HIGH_REG(d), s1, s2);
 642                         emit_store_dst(jd, iptr, d);
 643                         break;
 644
 645                 case ICMD_ISUBCONST:  /* ..., value  ==> ..., value + constant        */
 646                                       /* sx.val.i = constant                          */
 647
 648                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 649                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 650                         if (IS_IMM(iptr->sx.val.i))
 651                                 M_SUB_IMM(d, s1, iptr->sx.val.i);
 652                         else {
 653                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 654                                 M_SUB(d, s1, REG_ITMP3);
 655                         }
 656                         emit_store_dst(jd, iptr, d);
 657                         break;
 658
 659                 case ICMD_LSUBCONST:  /* ..., value  ==> ..., value - constant        */
 660                                       /* sx.val.l = constant                          */
 661
 662                         s3 = iptr->sx.val.l & 0xffffffff;
 663                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 664                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 665                         if (IS_IMM(s3))
 666                                 M_SUB_IMMS(GET_LOW_REG(d), s1, s3);
 667                         else {
 668                                 ICONST(REG_ITMP3, s3);
 669                                 M_SUB_S(GET_LOW_REG(d), s1, REG_ITMP3);
 670                         }
 671                         s3 = iptr->sx.val.l >> 32;
 672                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP2);
 673                         if (IS_IMM(s3))
 674                                 M_SBC_IMM(GET_HIGH_REG(d), s1, s3);
 675                         else {
 676                                 ICONST(REG_ITMP3, s3);
 677                                 M_SBC(GET_HIGH_REG(d), s1, REG_ITMP3);
 678                         }
 679                         emit_store_dst(jd, iptr, d);
 680                         break;
 681
 682                 case ICMD_IMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 683
 684                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 685                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 686                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 687                         M_MUL(d, s1, s2);
 688                         emit_store_dst(jd, iptr, d);
 689                         break;
 690
 691                 case ICMD_IDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 692                 case ICMD_IREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 693
 694                         s1 = emit_load_s1(jd, iptr, REG_A0);
 695                         s2 = emit_load_s2(jd, iptr, REG_A1);
 696                         emit_arithmetic_check(cd, iptr, s2);
 697
 698                         /* move arguments into argument registers */
 699                         M_INTMOVE(s1, REG_A0);
 700                         M_INTMOVE(s2, REG_A1);
 701
 702                         /* call builtin function */
 703                         bte = iptr->sx.s23.s3.bte;
 704                         disp = dseg_add_functionptr(cd, bte->fp);
 705                         M_DSEG_BRANCH(disp);
 706
 707                         /* recompute pv */
 708                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
 709                         M_RECOMPUTE_PV(s1);
 710
 711                         /* move result into destination register */
 712                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
 713                         M_INTMOVE(REG_RESULT, d);
 714                         emit_store_dst(jd, iptr, d);
 715                         break;
 716
 717                 case ICMD_LDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 718                 case ICMD_LREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 719
 720                         /* move arguments into argument registers */
 721
 722                         s1 = emit_load_s1(jd, iptr, REG_A0_A1_PACKED);
 723                         s2 = emit_load_s2(jd, iptr, REG_A2_A3_PACKED);
 724                         /* XXX TODO: only do this if arithmetic check is really done! */
 725                         M_ORR(GET_HIGH_REG(s2), GET_LOW_REG(s2), REG_ITMP3);
 726                         emit_arithmetic_check(cd, iptr, REG_ITMP3);
 727
 728                         M_LNGMOVE(s1, REG_A0_A1_PACKED);
 729                         M_LNGMOVE(s2, REG_A2_A3_PACKED);
 730
 731                         /* call builtin function */
 732                         bte = iptr->sx.s23.s3.bte;
 733                         disp = dseg_add_functionptr(cd, bte->fp);
 734                         M_DSEG_BRANCH(disp);
 735
 736                         /* recompute pv */
 737                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
 738                         M_RECOMPUTE_PV(s1);
 739
 740                         /* move result into destination register */
 741                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
 742                         M_LNGMOVE(REG_RESULT_PACKED, d);
 743                         emit_store_dst(jd, iptr, d);
 744                         break;
 745
 746                 case ICMD_IMULPOW2:   /* ..., value  ==> ..., value * (2 ^ constant)  */
 747                                       /* sx.val.i = constant                          */
 748
 749                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 750                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 751                         M_MOV(d, REG_LSL(s1, iptr->sx.val.i));
 752                         emit_store_dst(jd, iptr, d);
 753                         break;
 754
 755                 case ICMD_IDIVPOW2:   /* ..., value  ==> ..., value / (2 ^ constant)  */
 756                                       /* sx.val.i = constant                          */
 757
 758                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 759                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 760                         /* this rounds towards 0 as java likes it */
 761                         M_MOV(REG_ITMP3, REG_ASR(s1, 31));
 762                         M_ADD(REG_ITMP3, s1, REG_LSR(REG_ITMP3, 32 - iptr->sx.val.i));
 763                         M_MOV(d, REG_ASR(REG_ITMP3, iptr->sx.val.i));
 764                         /* this rounds towards nearest, not java style */
 765                         /*M_MOV_S(d, REG_ASR(s1, iptr->sx.val.i));
 766                         M_ADCMI_IMM(d, d, 0);*/
 767                         emit_store_dst(jd, iptr, d);
 768                         break;
 769
 770                 case ICMD_IREMPOW2:   /* ..., value  ==> ..., value % constant        */
 771                                       /* sx.val.i = constant [ (2 ^ x) - 1 ]          */
 772
 773                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 774                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 775                         M_MOV_S(REG_ITMP1, s1);
 776                         M_RSBMI_IMM(REG_ITMP1, REG_ITMP1, 0);
 777                         if (IS_IMM(iptr->sx.val.i))
 778                                 M_AND_IMM(REG_ITMP1, iptr->sx.val.i, d);
 779                         else {
 780                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 781                                 M_AND(REG_ITMP1, REG_ITMP3, d);
 782                         }
 783                         M_RSBMI_IMM(d, d, 0);
 784                         emit_store_dst(jd, iptr, d);
 785                         break;
 786
 787                 case ICMD_ISHL:       /* ..., val1, val2  ==> ..., val1 << val2       */
 788
 789                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 790                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 791                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 792                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 793                         M_MOV(d, REG_LSL_REG(s1, REG_ITMP2));
 794                         emit_store_dst(jd, iptr, d);
 795                         break;
 796
 797                 case ICMD_ISHR:       /* ..., val1, val2  ==> ..., val1 >> val2       */
 798
 799                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 800                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 801                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 802                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 803                         M_MOV(d, REG_ASR_REG(s1, REG_ITMP2));
 804                         emit_store_dst(jd, iptr, d);
 805                         break;
 806
 807                 case ICMD_IUSHR:      /* ..., val1, val2  ==> ..., val1 >>> val2      */
 808
 809                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 810                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 811                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 812                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 813                         M_MOV(d, REG_LSR_REG(s1, REG_ITMP2));
 814                         emit_store_dst(jd, iptr, d);
 815                         break;
 816
 817                 case ICMD_ISHLCONST:  /* ..., value  ==> ..., value << constant       */
 818                                       /* sx.val.i = constant                          */
 819
 820                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 821                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 822                         M_MOV(d, REG_LSL(s1, iptr->sx.val.i & 0x1f));
 823                         emit_store_dst(jd, iptr, d);
 824                         break;
 825
 826                 case ICMD_ISHRCONST:  /* ..., value  ==> ..., value >> constant       */
 827                                       /* sx.val.i = constant                          */
 828
 829                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 830                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 831                         /* we need to check for zero here because arm interprets it as SHR by 32 */
 832                         if ((iptr->sx.val.i & 0x1f) == 0) {
 833                                 M_INTMOVE(s1, d);
 834                         } else {
 835                                 M_MOV(d, REG_ASR(s1, iptr->sx.val.i & 0x1f));
 836                         }
 837                         emit_store_dst(jd, iptr, d);
 838                         break;
 839
 840                 case ICMD_IUSHRCONST: /* ..., value  ==> ..., value >>> constant      */
 841                                       /* sx.val.i = constant                          */
 842
 843                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 844                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 845                         /* we need to check for zero here because arm interprets it as SHR by 32 */
 846                         if ((iptr->sx.val.i & 0x1f) == 0)
 847                                 M_INTMOVE(s1, d);
 848                         else
 849                                 M_MOV(d, REG_LSR(s1, iptr->sx.val.i & 0x1f));
 850                         emit_store_dst(jd, iptr, d);
 851                         break;
 852
 853                 case ICMD_IAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 854
 855                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 856                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 857                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 858                         M_AND(s1, s2, d);
 859                         emit_store_dst(jd, iptr, d);
 860                         break;
 861
 862                 case ICMD_LAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 863
 864                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 865                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 866                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 867                         M_AND(s1, s2, GET_LOW_REG(d));
 868                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 869                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 870                         M_AND(s1, s2, GET_HIGH_REG(d));
 871                         emit_store_dst(jd, iptr, d);
 872                         break;
 873
 874                 case ICMD_IOR:        /* ..., val1, val2  ==> ..., val1 | val2        */
 875
 876                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 877                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 878                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 879                         M_ORR(s1, s2, d);
 880                         emit_store_dst(jd, iptr, d);
 881                         break;
 882
 883                 case ICMD_LOR:       /* ..., val1, val2  ==> ..., val1 | val2        */
 884
 885                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 886                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 887                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 888                         M_ORR(s1, s2, GET_LOW_REG(d));
 889                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 890                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 891                         M_ORR(s1, s2, GET_HIGH_REG(d));
 892                         emit_store_dst(jd, iptr, d);
 893                         break;
 894
 895                 case ICMD_IXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
 896
 897                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 898                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 899                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 900                         M_EOR(s1, s2, d);
 901                         emit_store_dst(jd, iptr, d);
 902                         break;
 903
 904                 case ICMD_LXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
 905
 906                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 907                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 908                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 909                         M_EOR(s1, s2, GET_LOW_REG(d));
 910                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 911                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 912                         M_EOR(s1, s2, GET_HIGH_REG(d));
 913                         emit_store_dst(jd, iptr, d);
 914                         break;
 915
 916
 917         /* floating operations ************************************************/
 918
 919 #if !defined(ENABLE_SOFTFLOAT)
 920
 921                 case ICMD_FNEG:       /* ..., value  ==> ..., - value                 */
 922
 923                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 924                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 925                         M_FNEG(s1, d);
 926                         emit_store_dst(jd, iptr, d);
 927                         break;
 928
 929                 case ICMD_FADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 930
 931                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 932                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 933                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 934                         M_FADD(s1, s2, d);
 935                         emit_store_dst(jd, iptr, d);
 936                         break;
 937
 938                 case ICMD_FSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 939
 940                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 941                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 942                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 943                         M_FSUB(s1, s2, d);
 944                         emit_store_dst(jd, iptr, d);
 945                         break;
 946
 947                 case ICMD_FMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 948
 949                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 950                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 951                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 952                         M_FMUL(s1, s2, d);
 953                         emit_store_dst(jd, iptr, d);
 954                         break;
 955
 956                 case ICMD_FDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 957                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 958                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 959                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 960                         M_FDIV(s1, s2, d);
 961                         emit_store_dst(jd, iptr, d);
 962                         break;
 963
 964                 /* ATTENTION: Jave does not want IEEE behaviour in FREM, do
 965                    not use this */
 966
 967 #if 0
 968                 case ICMD_FREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 969
 970                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 971                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 972                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 973                         M_RMFS(d, s1, s2);
 974                         emit_store_dst(jd, iptr, d);
 975                         break;
 976 #endif
 977
 978                 case ICMD_DNEG:       /* ..., value  ==> ..., - value                 */
 979
 980                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 981                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 982                         M_DNEG(s1, d);
 983                         emit_store_dst(jd, iptr, d);
 984                         break;
 985
 986                 case ICMD_DADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 987
 988                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 989                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 990                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 991                         M_DADD(s1, s2, d);
 992                         emit_store_dst(jd, iptr, d);
 993                         break;
 994
 995                 case ICMD_DSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 996
 997                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 998                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 999                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1000                         M_DSUB(s1, s2, d);
1001                         emit_store_dst(jd, iptr, d);
1002                         break;
1003
1004                 case ICMD_DMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1005
1006                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1007                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1008                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1009                         M_DMUL(s1, s2, d);
1010                         emit_store_dst(jd, iptr, d);
1011                         break;
1012
1013                 case ICMD_DDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1014
1015                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1016                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1017                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1018                         M_DDIV(s1, s2, d);
1019                         emit_store_dst(jd, iptr, d);
1020                         break;
1021
1022                 /* ATTENTION: Jave does not want IEEE behaviour in DREM, do
1023                    not use this */
1024
1025 #if 0
1026                 case ICMD_DREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
1027
1028                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1029                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1030                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1031                         M_RMFD(d, s1, s2);
1032                         emit_store_dst(jd, iptr, d);
1033                         break;
1034 #endif
1035
1036                 case ICMD_I2F:       /* ..., value  ==> ..., (float) value            */
1037
1038                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1039                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1040                         M_CVTIF(s1, d);
1041                         emit_store_dst(jd, iptr, d);
1042                         break;
1043
1044                 case ICMD_I2D:       /* ..., value  ==> ..., (double) value           */
1045
1046                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1047                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1048                         M_CVTID(s1, d);
1049                         emit_store_dst(jd, iptr, d);
1050                         break;
1051
1052                 case ICMD_F2I:       /* ..., value  ==> ..., (int) value              */
1053
1054                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1055                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1056                         /* this uses round towards zero, as Java likes it */
1057                         M_CVTFI(s1, d);
1058 #if !defined(__VFP_FP__)
1059                         /* this checks for NaN; to return zero as Java likes it */
1060                         M_FCMP(s1, 0x8);
1061                         M_MOVVS_IMM(0, d);
1062 #endif
1063                         emit_store_dst(jd, iptr, d);
1064                         break;
1065
1066                 case ICMD_D2I:       /* ..., value  ==> ..., (int) value              */
1067
1068                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1069                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1070                         /* this uses round towards zero, as Java likes it */
1071                         M_CVTDI(s1, d);
1072 #if !defined(__VFP_FP__)
1073                         /* this checks for NaN; to return zero as Java likes it */
1074                         M_DCMP(s1, 0x8);
1075                         M_MOVVS_IMM(0, d);
1076 #endif
1077                         emit_store_dst(jd, iptr, d);
1078                         break;
1079
1080                 case ICMD_D2F:       /* ..., value  ==> ..., (float) value            */
1081
1082                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1083                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1084                         M_CVTDF(s1, d);
1085                         emit_store_dst(jd, iptr, d);
1086                         break;
1087
1088                 case ICMD_F2D:       /* ..., value  ==> ..., (double) value           */
1089
1090                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1091                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1092                         M_CVTFD(s1, d);
1093                         emit_store_dst(jd, iptr, d);
1094                         break;
1095
1096                 case ICMD_FCMPG:      /* ..., val1, val2  ==> ..., val1 fcmpg val2    */
1097
1098                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1099                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1100                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1101                         M_FCMP(s2, s1);
1102                         M_MOV_IMM(d, 0);
1103 #if defined(__VFP_FP__)
1104                         M_FMSTAT; /* on VFP we need to transfer the flags */
1105 #endif
1106                         M_SUBGT_IMM(d, d, 1);
1107                         M_ADDLT_IMM(d, d, 1);
1108                         emit_store_dst(jd, iptr, d);
1109                         break;
1110
1111                 case ICMD_DCMPG:      /* ..., val1, val2  ==> ..., val1 dcmpg val2    */
1112
1113                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1114                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1115                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1116                         M_DCMP(s2, s1);
1117                         M_MOV_IMM(d, 0);
1118 #if defined(__VFP_FP__)
1119                         M_FMSTAT; /* on VFP we need to transfer the flags */
1120 #endif
1121                         M_SUBGT_IMM(d, d, 1);
1122                         M_ADDLT_IMM(d, d, 1);
1123                         emit_store_dst(jd, iptr, d);
1124                         break;
1125
1126                 case ICMD_FCMPL:      /* ..., val1, val2  ==> ..., val1 fcmpl val2    */
1127
1128                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1129                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1130                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1131                         M_FCMP(s1, s2);
1132                         M_MOV_IMM(d, 0);
1133 #if defined(__VFP_FP__)
1134                         M_FMSTAT; /* on VFP we need to transfer the flags */
1135 #endif
1136                         M_SUBLT_IMM(d, d, 1);
1137                         M_ADDGT_IMM(d, d, 1);
1138                         emit_store_dst(jd, iptr, d);
1139                         break;
1140
1141                 case ICMD_DCMPL:      /* ..., val1, val2  ==> ..., val1 dcmpl val2    */
1142
1143                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1144                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1145                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1146                         M_DCMP(s1, s2);
1147                         M_MOV_IMM(d, 0);
1148 #if defined(__VFP_FP__)
1149                         M_FMSTAT; /* on VFP we need to transfer the flags */
1150 #endif
1151                         M_SUBLT_IMM(d, d, 1);
1152                         M_ADDGT_IMM(d, d, 1);
1153                         emit_store_dst(jd, iptr, d);
1154                         break;
1155
1156 #endif /* !defined(ENABLE_SOFTFLOAT) */
1157
1158
1159                 /* memory operations **************************************************/
1160
1161                 case ICMD_ARRAYLENGTH: /* ..., arrayref  ==> ..., length              */
1162
1163                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1164                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1165                         /* implicit null-pointer check */
1166                         M_ILD_INTERN(d, s1, OFFSET(java_array_t, size));
1167                         emit_store_dst(jd, iptr, d);
1168                         break;
1169
1170                 case ICMD_BALOAD:     /* ..., arrayref, index  ==> ..., value         */
1171
1172                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1173                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1174                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1175                         /* implicit null-pointer check */
1176                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1177                         M_ADD(REG_ITMP1, s1, s2); /* REG_ITMP1 = s1 + 1 * s2 */
1178                         M_LDRSB(d, REG_ITMP1, OFFSET(java_bytearray_t, data[0]));
1179                         emit_store_dst(jd, iptr, d);
1180                         break;
1181
1182                 case ICMD_CALOAD:     /* ..., arrayref, index  ==> ..., value         */
1183
1184                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1185                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1186                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1187                         /* implicit null-pointer check */
1188                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1189                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1190                         M_LDRH(d, REG_ITMP1, OFFSET(java_chararray_t, data[0]));
1191                         emit_store_dst(jd, iptr, d);
1192                         break;
1193
1194                 case ICMD_SALOAD:     /* ..., arrayref, index  ==> ..., value         */
1195
1196                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1197                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1198                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1199                         /* implicit null-pointer check */
1200                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1201                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1202                         M_LDRSH(d, REG_ITMP1, OFFSET(java_shortarray_t, data[0]));
1203                         emit_store_dst(jd, iptr, d);
1204                         break;
1205
1206                 case ICMD_IALOAD:     /* ..., arrayref, index  ==> ..., value         */
1207
1208                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1209                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1210                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1211                         /* implicit null-pointer check */
1212                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1213                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1214                         M_ILD_INTERN(d, REG_ITMP1, OFFSET(java_intarray_t, data[0]));
1215                         emit_store_dst(jd, iptr, d);
1216                         break;
1217
1218                 case ICMD_LALOAD:     /* ..., arrayref, index  ==> ..., value         */
1219
1220                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1221                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1222                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1223                         /* implicit null-pointer check */
1224                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1225                         M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1226                         M_LLD_INTERN(d, REG_ITMP3, OFFSET(java_longarray_t, data[0]));
1227                         emit_store_dst(jd, iptr, d);
1228                         break;
1229
1230                 case ICMD_FALOAD:     /* ..., arrayref, index  ==> ..., value         */
1231
1232                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1233                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1234                         /* implicit null-pointer check */
1235                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1236                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1237 #if !defined(ENABLE_SOFTFLOAT)
1238                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1239                         M_FLD_INTERN(d, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1240 #else
1241                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1242                         M_ILD_INTERN(d, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1243 #endif
1244                         emit_store_dst(jd, iptr, d);
1245                         break;
1246
1247                 case ICMD_DALOAD:     /* ..., arrayref, index  ==> ..., value         */
1248
1249                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1250                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1251                         /* implicit null-pointer check */
1252                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1253                         M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1254 #if !defined(ENABLE_SOFTFLOAT)
1255                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1256                         M_DLD_INTERN(d, REG_ITMP3, OFFSET(java_doublearray_t, data[0]));
1257 #else
1258                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1259                         M_LLD_INTERN(d, REG_ITMP3, OFFSET(java_doublearray_t, data[0]));
1260 #endif
1261                         emit_store_dst(jd, iptr, d);
1262                         break;
1263
1264                 case ICMD_AALOAD:     /* ..., arrayref, index  ==> ..., value         */
1265
1266                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1267                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1268                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1269                         /* implicit null-pointer check */
1270                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1271                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1272                         M_LDR_INTERN(d, REG_ITMP1, OFFSET(java_objectarray_t, data[0]));
1273                         emit_store_dst(jd, iptr, d);
1274                         break;
1275
1276                 case ICMD_BASTORE:    /* ..., arrayref, index, value  ==> ...         */
1277
1278                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1279                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1280                         /* implicit null-pointer check */
1281                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1282                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1283                         M_ADD(REG_ITMP1, s1, s2); /* REG_ITMP1 = s1 + 1 * s2 */
1284                         M_STRB(s3, REG_ITMP1, OFFSET(java_bytearray_t, data[0]));
1285                         break;
1286
1287                 case ICMD_CASTORE:    /* ..., arrayref, index, value  ==> ...         */
1288
1289                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1290                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1291                         /* implicit null-pointer check */
1292                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1293                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1294                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1295                         M_STRH(s3, REG_ITMP1, OFFSET(java_chararray_t, data[0]));
1296                         break;
1297
1298                 case ICMD_SASTORE:    /* ..., arrayref, index, value  ==> ...         */
1299
1300                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1301                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1302                         /* implicit null-pointer check */
1303                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1304                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1305                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1306                         M_STRH(s3, REG_ITMP1, OFFSET(java_shortarray_t, data[0]));
1307                         break;
1308
1309                 case ICMD_IASTORE:    /* ..., arrayref, index, value  ==> ...         */
1310
1311                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1312                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1313                         /* implicit null-pointer check */
1314                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1315                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1316                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1317                         M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_intarray_t, data[0]));
1318                         break;
1319
1320                 case ICMD_LASTORE:    /* ..., 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_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1327                         s3 = emit_load_s3(jd, iptr, REG_ITMP12_PACKED);
1328                         M_LST_INTERN(s3, REG_ITMP3, OFFSET(java_longarray_t, data[0]));
1329                         break;
1330
1331                 case ICMD_FASTORE:    /* ..., arrayref, index, value  ==> ...         */
1332
1333                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1334                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1335                         /* implicit null-pointer check */
1336                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1337                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1338 #if !defined(ENABLE_SOFTFLOAT)
1339                         s3 = emit_load_s3(jd, iptr, REG_FTMP1);
1340                         M_FST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1341 #else
1342                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1343                         M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1344 #endif
1345                         break;
1346
1347                 case ICMD_DASTORE:    /* ..., arrayref, index, value  ==> ...         */
1348
1349                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1350                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1351                         /* implicit null-pointer check */
1352                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1353                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 3)); /* REG_ITMP1 = s1 + 8 * s2 */
1354 #if !defined(ENABLE_SOFTFLOAT)
1355                         s3 = emit_load_s3(jd, iptr, REG_FTMP1);
1356                         M_DST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray_t, data[0]));
1357 #else
1358                         s3 = emit_load_s3(jd, iptr, REG_ITMP23_PACKED);
1359                         M_LST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray_t, data[0]));
1360 #endif
1361                         break;
1362
1363                 case ICMD_AASTORE:    /* ..., arrayref, index, value  ==> ...         */
1364
1365                         s1 = emit_load_s1(jd, iptr, REG_A0);
1366                         s2 = emit_load_s2(jd, iptr, REG_ITMP1);
1367                         s3 = emit_load_s3(jd, iptr, REG_A1);
1368
1369                         /* implicit null-pointer check */
1370                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1371
1372                         /* move arguments to argument registers */
1373                         M_INTMOVE(s1, REG_A0);
1374                         M_INTMOVE(s3, REG_A1);
1375
1376                         /* call builtin function */
1377                         disp = dseg_add_functionptr(cd, BUILTIN_FAST_canstore);
1378                         M_DSEG_BRANCH(disp);
1379
1380                         /* recompute pv */
1381                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
1382                         M_RECOMPUTE_PV(s1);
1383
1384                         /* check resturn value of builtin */
1385                         emit_arraystore_check(cd, iptr);
1386
1387                         /* finally store address into array */
1388                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1389                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1390                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1391                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1392                         M_STR_INTERN(s3, REG_ITMP1, OFFSET(java_objectarray_t, data[0]));
1393                         break;
1394
1395                 case ICMD_GETSTATIC:  /* ...  ==> ..., value                          */
1396
1397                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1398                                 uf        = iptr->sx.s23.s3.uf;
1399                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1400                                 disp      = dseg_add_unique_address(cd, NULL);
1401
1402                                 patcher_add_patch_ref(jd, PATCHER_get_putstatic, uf, disp);
1403                         }
1404                         else {
1405                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1406                                 fieldtype = fi->type;
1407                                 disp      = dseg_add_address(cd, fi->value);
1408
1409                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1410                                         patcher_add_patch_ref(jd, PATCHER_initialize_class,
1411                                                             fi->class, 0);
1412                                 }
1413                         }
1414
1415                         M_DSEG_LOAD(REG_ITMP3, disp);
1416                         switch (fieldtype) {
1417                         case TYPE_INT:
1418 #if defined(ENABLE_SOFTFLOAT)
1419                         case TYPE_FLT:
1420 #endif
1421                         case TYPE_ADR:
1422                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1423                                 M_ILD_INTERN(d, REG_ITMP3, 0);
1424                                 break;
1425                         case TYPE_LNG:
1426 #if defined(ENABLE_SOFTFLOAT)
1427                         case TYPE_DBL:
1428 #endif
1429                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1430                                 M_LLD_INTERN(d, REG_ITMP3, 0);
1431                                 break;
1432 #if !defined(ENABLE_SOFTFLOAT)
1433                         case TYPE_FLT:
1434                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1435                                 M_FLD_INTERN(d, REG_ITMP3, 0);
1436                                 break;
1437                         case TYPE_DBL:
1438                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1439                                 M_DLD_INTERN(d, REG_ITMP3, 0);
1440                                 break;
1441 #endif
1442                         default:
1443                                 assert(0);
1444                         }
1445                         emit_store_dst(jd, iptr, d);
1446                         break;
1447
1448                 case ICMD_PUTSTATIC:  /* ..., value  ==> ...                          */
1449
1450                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1451                                 uf        = iptr->sx.s23.s3.uf;
1452                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1453                                 disp      = dseg_add_unique_address(cd, NULL);
1454
1455                                 patcher_add_patch_ref(jd, PATCHER_get_putstatic, uf, disp);
1456                         }
1457                         else {
1458                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1459                                 fieldtype = fi->type;
1460                                 disp      = dseg_add_address(cd, fi->value);
1461
1462                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1463                                         patcher_add_patch_ref(jd, PATCHER_initialize_class,
1464                                                             fi->class, 0);
1465                                 }
1466                         }
1467
1468                         M_DSEG_LOAD(REG_ITMP3, disp);
1469                         switch (fieldtype) {
1470                         case TYPE_INT:
1471 #if defined(ENABLE_SOFTFLOAT)
1472                         case TYPE_FLT:
1473 #endif
1474                         case TYPE_ADR:
1475                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1476                                 M_IST_INTERN(s1, REG_ITMP3, 0);
1477                                 break;
1478                         case TYPE_LNG:
1479 #if defined(ENABLE_SOFTFLOAT)
1480                         case TYPE_DBL:
1481 #endif
1482                                 s1 = emit_load_s1(jd, iptr, REG_ITMP12_PACKED);
1483                                 M_LST_INTERN(s1, REG_ITMP3, 0);
1484                                 break;
1485 #if !defined(ENABLE_SOFTFLOAT)
1486                         case TYPE_FLT:
1487                                 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1488                                 M_FST_INTERN(s1, REG_ITMP3, 0);
1489                                 break;
1490                         case TYPE_DBL:
1491                                 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1492                                 M_DST_INTERN(s1, REG_ITMP3, 0);
1493                                 break;
1494 #endif
1495                         default:
1496                                 assert(0);
1497                         }
1498                         break;
1499
1500                 case ICMD_GETFIELD:   /* ..., objectref, value  ==> ...               */
1501
1502                         s1 = emit_load_s1(jd, iptr, REG_ITMP3);
1503                         emit_nullpointer_check(cd, iptr, s1);
1504
1505
1506                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1507                                 uf        = iptr->sx.s23.s3.uf;
1508                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1509                                 disp      = 0;
1510                         }
1511                         else {
1512                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1513                                 fieldtype = fi->type;
1514                                 disp      = fi->offset;
1515                         }
1516
1517 #if !defined(ENABLE_SOFTFLOAT)
1518                         /* HACK: softnull checks on floats */
1519                         if (!INSTRUCTION_MUST_CHECK(iptr) && IS_FLT_DBL_TYPE(fieldtype))
1520                                 emit_nullpointer_check_force(cd, iptr, s1);
1521 #endif
1522
1523                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1524                                 /* XXX REMOVE ME */
1525                                 uf = iptr->sx.s23.s3.uf;
1526
1527                                 patcher_add_patch_ref(jd, PATCHER_get_putfield, uf, 0);
1528                         }
1529
1530                         switch (fieldtype) {
1531                         case TYPE_INT:
1532 #if defined(ENABLE_SOFTFLOAT)
1533                         case TYPE_FLT:
1534 #endif
1535                         case TYPE_ADR:
1536                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1537                                 M_ILD(d, s1, disp);
1538                                 break;
1539                         case TYPE_LNG:
1540 #if defined(ENABLE_SOFTFLOAT)
1541                         case TYPE_DBL:
1542 #endif
1543                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1544                                 M_LLD(d, s1, disp);
1545                                 break;
1546 #if !defined(ENABLE_SOFTFLOAT)
1547                         case TYPE_FLT:
1548                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1549                                 M_FLD(d, s1, disp);
1550                                 break;
1551                         case TYPE_DBL:
1552                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1553                                 M_DLD(d, s1, disp);
1554                                 break;
1555 #endif
1556                         default:
1557                                 assert(0);
1558                         }
1559                         emit_store_dst(jd, iptr, d);
1560                         break;
1561
1562                 case ICMD_PUTFIELD:   /* ..., objectref, value  ==> ...               */
1563
1564                         s1 = emit_load_s1(jd, iptr, REG_ITMP3);
1565                         emit_nullpointer_check(cd, iptr, s1);
1566
1567                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1568                                 uf        = iptr->sx.s23.s3.uf;
1569                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1570                                 disp      = 0;
1571                         }
1572                         else {
1573                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1574                                 fieldtype = fi->type;
1575                                 disp      = fi->offset;
1576                         }
1577
1578 #if !defined(ENABLE_SOFTFLOAT)
1579                         /* HACK: softnull checks on floats */
1580                         if (!INSTRUCTION_MUST_CHECK(iptr) && IS_FLT_DBL_TYPE(fieldtype))
1581                                 emit_nullpointer_check_force(cd, iptr, s1);
1582 #endif
1583
1584                         switch (fieldtype) {
1585                         case TYPE_INT:
1586 #if defined(ENABLE_SOFTFLOAT)
1587                         case TYPE_FLT:
1588 #endif
1589                         case TYPE_ADR:
1590                                 s2 = emit_load_s2(jd, iptr, REG_ITMP1);
1591                                 break;
1592 #if defined(ENABLE_SOFTFLOAT)
1593                         case TYPE_DBL: /* fall through */
1594 #endif
1595                         case TYPE_LNG:
1596                                 s2 = emit_load_s2(jd, iptr, REG_ITMP12_PACKED);
1597                                 break;
1598 #if !defined(ENABLE_SOFTFLOAT)
1599                         case TYPE_FLT:
1600                         case TYPE_DBL:
1601                                 s2 = emit_load_s2(jd, iptr, REG_FTMP1);
1602                                 break;
1603 #endif
1604                         default:
1605                                 assert(0);
1606                         }
1607
1608                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1609                                 /* XXX REMOVE ME */
1610                                 uf = iptr->sx.s23.s3.uf;
1611
1612                                 patcher_add_patch_ref(jd, PATCHER_get_putfield, uf, 0);
1613                         }
1614
1615                         switch (fieldtype) {
1616                         case TYPE_INT:
1617 #if defined(ENABLE_SOFTFLOAT)
1618                         case TYPE_FLT:
1619 #endif
1620                         case TYPE_ADR:
1621                                 M_IST(s2, s1, disp);
1622                                 break;
1623                         case TYPE_LNG:
1624 #if defined(ENABLE_SOFTFLOAT)
1625                         case TYPE_DBL:
1626 #endif
1627                                 M_LST(s2, s1, disp);
1628                                 break;
1629 #if !defined(ENABLE_SOFTFLOAT)
1630                         case TYPE_FLT:
1631                                 M_FST(s2, s1, disp);
1632                                 break;
1633                         case TYPE_DBL:
1634                                 M_DST(s2, s1, disp);
1635                                 break;
1636 #endif
1637                         default:
1638                                 assert(0);
1639                         }
1640                         break;
1641
1642
1643                 /* branch operations **************************************************/
1644
1645                 case ICMD_ATHROW:       /* ..., objectref ==> ... (, objectref)       */
1646
1647                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1648                         M_INTMOVE(s1, REG_ITMP1_XPTR);
1649                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1650                                 patcher_add_patch_ref(jd, PATCHER_resolve_class,
1651                                                                         iptr->sx.s23.s2.uc, 0);
1652                         }
1653                         disp = dseg_add_functionptr(cd, asm_handle_exception);
1654                         M_DSEG_LOAD(REG_ITMP3, disp);
1655                         M_MOV(REG_ITMP2_XPC, REG_PC);
1656                         M_MOV(REG_PC, REG_ITMP3);
1657                         M_NOP;              /* nop ensures that XPC is less than the end  */
1658                                             /* of basic block                             */
1659                         break;
1660
1661                 case ICMD_GOTO:         /* ... ==> ...                                */
1662                 case ICMD_RET:
1663
1664                         emit_br(cd, iptr->dst.block);
1665                         break;
1666
1667                 case ICMD_JSR:          /* ... ==> ...                                */
1668
1669                         emit_br(cd, iptr->sx.s23.s3.jsrtarget.block);
1670                         break;
1671
1672                 case ICMD_IFNULL:       /* ..., value ==> ...                         */
1673                 case ICMD_IFNONNULL:
1674
1675                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1676                         M_TEQ_IMM(s1, 0);
1677                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFNULL, BRANCH_OPT_NONE);
1678                         break;
1679
1680                 case ICMD_IFLT:         /* ..., value ==> ...                         */
1681                 case ICMD_IFLE:         /* op1 = target JavaVM pc, val.i = constant   */
1682                 case ICMD_IFGT:
1683                 case ICMD_IFGE:
1684                 case ICMD_IFEQ:
1685                 case ICMD_IFNE:
1686
1687                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1688                         M_COMPARE(s1, iptr->sx.val.i);
1689                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFEQ, BRANCH_OPT_NONE);
1690                         break;
1691
1692                 case ICMD_IF_LEQ:       /* ..., value ==> ...                         */
1693
1694                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1695                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1696                         if (iptr->sx.val.l == 0) {
1697                                 M_ORR_S(s1, s2, REG_ITMP3);
1698                         }
1699                         else {
1700                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1701                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1702                                 M_CMP(s1, REG_ITMP3);*/
1703                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1704                                 M_CMPEQ(s2, REG_ITMP3);
1705                         }
1706                         emit_beq(cd, iptr->dst.block);
1707                         break;
1708
1709                 case ICMD_IF_LLT:       /* ..., value ==> ...                         */
1710
1711                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1712                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1713                         if (iptr->sx.val.l == 0) {
1714                                 /* if high word is less than zero, the whole long is too */
1715                                 M_CMP_IMM(s1, 0);
1716                                 emit_blt(cd, iptr->dst.block);
1717                         }
1718                         else {
1719                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1720                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1721                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1722                                 M_CMP(s1, REG_ITMP3);*/
1723                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1724                                 M_MOVGT_IMM(2, REG_ITMP1);
1725                                 M_MOVEQ_IMM(1, REG_ITMP1);
1726
1727                                 /* low compare: x=x-1(ifLO) */
1728                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1729                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1730                                 M_CMP(s2, REG_ITMP3);*/
1731                                 M_SUBLO_IMM(REG_ITMP1, REG_ITMP1, 1);
1732
1733                                 /* branch if (x LT 1) */
1734                                 M_CMP_IMM(REG_ITMP1, 1);
1735                                 emit_blt(cd, iptr->dst.block);
1736                         }
1737                         break;
1738
1739                 case ICMD_IF_LLE:       /* ..., value ==> ...                         */
1740
1741                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1742                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1743                         if (iptr->sx.val.l == 0) {
1744                                 /* if high word is less than zero, the whole long is too  */
1745                                 M_CMP_IMM(s1, 0);
1746                                 emit_blt(cd, iptr->dst.block);
1747
1748                                 /* ... otherwise the low word has to be zero (tricky!) */
1749                                 M_CMPEQ_IMM(s2, 0);
1750                                 emit_beq(cd, iptr->dst.block);
1751                         }
1752                         else {
1753                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1754                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1755                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1756                                 M_CMP(s1, REG_ITMP3);*/
1757                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1758                                 M_MOVGT_IMM(2, REG_ITMP1);
1759                                 M_MOVEQ_IMM(1, REG_ITMP1);
1760
1761                                 /* low compare: x=x+1(ifHI) */
1762                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1763                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1764                                 M_CMP(s2, REG_ITMP3);*/
1765                                 M_ADDHI_IMM(REG_ITMP1, REG_ITMP1, 1);
1766
1767                                 /* branch if (x LE 1) */
1768                                 M_CMP_IMM(REG_ITMP1, 1);
1769                                 emit_ble(cd, iptr->dst.block);
1770                         }
1771                         break;
1772
1773                 case ICMD_IF_LGE:       /* ..., value ==> ...                         */
1774
1775                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1776                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1777                         if (iptr->sx.val.l == 0) {
1778                                 /* if high word is greater or equal zero, the whole long is too */
1779                                 M_CMP_IMM(s1, 0);
1780                                 emit_bge(cd, iptr->dst.block);
1781                         }
1782                         else {
1783                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1784                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1785                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1786                                 M_CMP(s1, REG_ITMP3);*/
1787                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1788                                 M_MOVGT_IMM(2, REG_ITMP1);
1789                                 M_MOVEQ_IMM(1, REG_ITMP1);
1790
1791                                 /* low compare: x=x-1(ifLO) */
1792                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1793                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1794                                 M_CMP(s2, REG_ITMP3);*/
1795                                 M_SUBLO_IMM(REG_ITMP1, REG_ITMP1, 1);
1796
1797                                 /* branch if (x GE 1) */
1798                                 M_CMP_IMM(REG_ITMP1, 1);
1799                                 emit_bge(cd, iptr->dst.block);
1800                         }
1801                         break;
1802
1803                 case ICMD_IF_LGT:       /* ..., value ==> ...                         */
1804
1805                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1806                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1807 #if 0
1808                         if (iptr->sx.val.l == 0) {
1809                                 /* if high word is greater than zero, the whole long is too */
1810                                 M_CMP_IMM(s1, 0);
1811                                 M_BGT(0);
1812                                 codegen_add_branch_ref(cd, iptr->dst.block);
1813
1814                                 /* ... or high was zero and low is non zero (tricky!) */
1815                                 M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1816                                 M_MOVLT_IMM(1, REG_ITMP3);
1817                                 M_ORR_S(REG_ITMP3, s2, REG_ITMP3);
1818                                 M_BNE(0);
1819                                 codegen_add_branch_ref(cd, iptr->dst.block);
1820                         }
1821                         else {
1822 #endif
1823                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1824                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1825                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1826                                 M_CMP(s1, REG_ITMP3);*/
1827                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1828                                 M_MOVGT_IMM(2, REG_ITMP1);
1829                                 M_MOVEQ_IMM(1, REG_ITMP1);
1830
1831                                 /* low compare: x=x+1(ifHI) */
1832                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1833                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1834                                 M_CMP(s2, REG_ITMP3);*/
1835                                 M_ADDHI_IMM(REG_ITMP1, REG_ITMP1, 1);
1836
1837                                 /* branch if (x GT 1) */
1838                                 M_CMP_IMM(REG_ITMP1, 1);
1839                                 emit_bgt(cd, iptr->dst.block);
1840 #if 0
1841                         }
1842 #endif
1843                         break;
1844
1845                 case ICMD_IF_LNE:       /* ..., value ==> ...                         */
1846
1847                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1848                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1849                         if (iptr->sx.val.l == 0) {
1850                                 M_ORR_S(s1, s2, REG_ITMP3);
1851                         }
1852                         else {
1853                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1854                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1855                                 M_CMP(s1, REG_ITMP3);*/
1856                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1857                                 M_CMPEQ(s2, REG_ITMP3);
1858                         }
1859                         emit_bne(cd, iptr->dst.block);
1860                         break;
1861
1862                 case ICMD_IF_ICMPEQ:    /* ..., value, value ==> ...                  */
1863                 case ICMD_IF_ICMPNE:
1864                 case ICMD_IF_ICMPLT:
1865                 case ICMD_IF_ICMPLE:
1866                 case ICMD_IF_ICMPGT:
1867                 case ICMD_IF_ICMPGE:
1868
1869                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1870                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1871                         M_CMP(s1, s2);
1872                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IF_ICMPEQ, BRANCH_OPT_NONE);
1873                         break;
1874
1875                 case ICMD_IF_ACMPEQ:    /* ..., value, value ==> ...                  */
1876                 case ICMD_IF_ACMPNE:
1877
1878                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1879                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1880                         M_CMP(s1, s2);
1881                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IF_ACMPEQ, BRANCH_OPT_NONE);
1882                         break;
1883
1884                 case ICMD_IF_LCMPEQ:    /* ..., value, value ==> ...                  */
1885                                         /* op1 = target JavaVM pc                     */
1886
1887                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1888                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1889                         M_CMP(s1, s2);
1890
1891                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1892                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1893                         M_CMPEQ(s1, s2);
1894
1895                         emit_beq(cd, iptr->dst.block);
1896                         break;
1897
1898                 case ICMD_IF_LCMPNE:    /* ..., value, value ==> ...                  */
1899                                         /* op1 = target JavaVM pc                     */
1900
1901                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1902                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1903                         M_CMP(s1, s2);
1904
1905                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1906                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1907                         M_CMPEQ(s1, s2);
1908
1909                         emit_bne(cd, iptr->dst.block);
1910                         break;
1911
1912                 case ICMD_IF_LCMPLT:    /* ..., value, value ==> ...                  */
1913                                         /* op1 = target JavaVM pc                     */
1914
1915                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1916                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1917                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1918                         M_CMP(s1, s2);
1919                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1920                         M_MOVGT_IMM(2, REG_ITMP3);
1921                         M_MOVEQ_IMM(1, REG_ITMP3);
1922
1923                         /* low compare: x=x-1(ifLO) */
1924                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1925                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1926                         M_CMP(s1, s2);
1927                         M_SUBLO_IMM(REG_ITMP3, REG_ITMP3, 1);
1928
1929                         /* branch if (x LT 1) */
1930                         M_CMP_IMM(REG_ITMP3, 1);
1931                         emit_blt(cd, iptr->dst.block);
1932                         break;
1933
1934                 case ICMD_IF_LCMPLE:    /* ..., value, value ==> ...                  */
1935                                         /* op1 = target JavaVM pc                     */
1936
1937                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1938                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1939                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1940                         M_CMP(s1, s2);
1941                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1942                         M_MOVGT_IMM(2, REG_ITMP3);
1943                         M_MOVEQ_IMM(1, REG_ITMP3);
1944
1945                         /* low compare: x=x-1(ifLO) */
1946                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1947                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1948                         M_CMP(s1, s2);
1949                         M_ADDHI_IMM(REG_ITMP3, REG_ITMP3, 1);
1950
1951                         /* branch if (x LE 1) */
1952                         M_CMP_IMM(REG_ITMP3, 1);
1953                         emit_ble(cd, iptr->dst.block);
1954                         break;
1955
1956                 case ICMD_IF_LCMPGT:    /* ..., value, value ==> ...                  */
1957                                         /* op1 = target JavaVM pc                     */
1958
1959                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1960                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1961                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1962                         M_CMP(s1, s2);
1963                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1964                         M_MOVGT_IMM(2, REG_ITMP3);
1965                         M_MOVEQ_IMM(1, REG_ITMP3);
1966
1967                         /* low compare: x=x-1(ifLO) */
1968                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1969                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1970                         M_CMP(s1, s2);
1971                         M_ADDHI_IMM(REG_ITMP3, REG_ITMP3, 1);
1972
1973                         /* branch if (x GT 1) */
1974                         M_CMP_IMM(REG_ITMP3, 1);
1975                         emit_bgt(cd, iptr->dst.block);
1976                         break;
1977
1978                 case ICMD_IF_LCMPGE:    /* ..., value, value ==> ...                  */
1979                                         /* op1 = target JavaVM pc                     */
1980
1981                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1982                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1983                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1984                         M_CMP(s1, s2);
1985                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1986                         M_MOVGT_IMM(2, REG_ITMP3);
1987                         M_MOVEQ_IMM(1, REG_ITMP3);
1988
1989                         /* low compare: x=x-1(ifLO) */
1990                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1991                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1992                         M_CMP(s1, s2);
1993                         M_SUBLO_IMM(REG_ITMP3, REG_ITMP3, 1);
1994
1995                         /* branch if (x GE 1) */
1996                         M_CMP_IMM(REG_ITMP3, 1);
1997                         emit_bge(cd, iptr->dst.block);
1998                         break;
1999
2000                 case ICMD_TABLESWITCH:  /* ..., index ==> ...                         */
2001                         {
2002                         s4 i, l;
2003                         branch_target_t *table;
2004
2005                         table = iptr->dst.table;
2006
2007                         l = iptr->sx.s23.s2.tablelow;
2008                         i = iptr->sx.s23.s3.tablehigh;
2009
2010                         /* calculate new index (index - low) */
2011                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2012                         if (l  == 0) {
2013                                 M_INTMOVE(s1, REG_ITMP1);
2014                         } else if (IS_IMM(l)) {
2015                                 M_SUB_IMM(REG_ITMP1, s1, l);
2016                         } else {
2017                                 ICONST(REG_ITMP2, l);
2018                                 M_SUB(REG_ITMP1, s1, REG_ITMP2);
2019                         }
2020
2021                         /* range check (index <= high-low) */
2022                         i = i - l + 1;
2023                         M_COMPARE(REG_ITMP1, i-1);
2024                         emit_bugt(cd, table[0].block);
2025
2026                         /* build jump table top down and use address of lowest entry */
2027
2028                         table += i;
2029
2030                         while (--i >= 0) {
2031                                 dseg_add_target(cd, table->block);
2032                                 --table;
2033                         }
2034                         }
2035
2036                         /* length of dataseg after last dseg_add_target is used by load */
2037                         /* TODO: this loads from data-segment */
2038                         M_ADD(REG_ITMP2, REG_PV, REG_LSL(REG_ITMP1, 2));
2039                         M_LDR(REG_PC, REG_ITMP2, -(cd->dseglen));
2040                         break;
2041
2042                 case ICMD_LOOKUPSWITCH: /* ..., key ==> ...                           */
2043                         {
2044                         s4 i;
2045                         lookup_target_t *lookup;
2046
2047                         lookup = iptr->dst.lookup;
2048
2049                         i = iptr->sx.s23.s2.lookupcount;
2050
2051                         /* compare keys */
2052                         MCODECHECK((i<<2)+8);
2053                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2054
2055                         while (--i >= 0) {
2056                                 M_COMPARE(s1, lookup->value);
2057                                 emit_beq(cd, lookup->target.block);
2058                                 lookup++;
2059                         }
2060
2061                         /* default branch */
2062                         emit_br(cd, iptr->sx.s23.s3.lookupdefault.block);
2063                         }
2064                         break;
2065
2066                 case ICMD_FRETURN:      /* ..., retvalue ==> ...                      */
2067
2068 #if !defined(ENABLE_SOFTFLOAT)
2069                         REPLACEMENT_POINT_RETURN(cd, iptr);
2070                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
2071                         M_CAST_F2I(s1, REG_RESULT);
2072                         goto ICMD_RETURN_do;
2073 #endif
2074
2075                 case ICMD_IRETURN:      /* ..., retvalue ==> ...                      */
2076
2077                         REPLACEMENT_POINT_RETURN(cd, iptr);
2078                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2079                         M_INTMOVE(s1, REG_RESULT);
2080                         goto ICMD_RETURN_do;
2081
2082                 case ICMD_DRETURN:      /* ..., retvalue ==> ...                      */
2083
2084 #if !defined(ENABLE_SOFTFLOAT)
2085                         REPLACEMENT_POINT_RETURN(cd, iptr);
2086                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
2087                         M_CAST_D2L(s1, REG_RESULT_PACKED);
2088                         goto ICMD_RETURN_do;
2089 #endif
2090
2091                 case ICMD_LRETURN:      /* ..., retvalue ==> ...                      */
2092
2093                         REPLACEMENT_POINT_RETURN(cd, iptr);
2094                         s1 = emit_load_s1(jd, iptr, REG_RESULT_PACKED);
2095                         M_LNGMOVE(s1, REG_RESULT_PACKED);
2096                         goto ICMD_RETURN_do;
2097
2098                 case ICMD_ARETURN:      /* ..., retvalue ==> ...                      */
2099
2100                         REPLACEMENT_POINT_RETURN(cd, iptr);
2101                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2102                         M_INTMOVE(s1, REG_RESULT);
2103                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2104                                 patcher_add_patch_ref(jd, PATCHER_resolve_class,
2105                                                                         iptr->sx.s23.s2.uc, 0);
2106                         }
2107                         goto ICMD_RETURN_do;
2108
2109                 case ICMD_RETURN:       /* ...  ==> ...                               */
2110
2111                         REPLACEMENT_POINT_RETURN(cd, iptr);
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                         REPLACEMENT_POINT_INVOKE(cd, iptr);
2193
2194                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2195                                 lm = NULL;
2196                                 um = iptr->sx.s23.s3.um;
2197                                 md = um->methodref->parseddesc.md;
2198                         }
2199                         else {
2200                                 lm = iptr->sx.s23.s3.fmiref->p.method;
2201                                 um = NULL;
2202                                 md = lm->parseddesc;
2203                         }
2204
2205                 ICMD_INVOKE_do:
2206                         /* copy arguments to registers or stack location */
2207
2208                         s3 = md->paramcount;
2209
2210                         MCODECHECK((s3 << 1) + 64);
2211
2212                         for (s3 = s3 - 1; s3 >= 0; s3--) {
2213                                 var = VAR(iptr->sx.s23.s2.args[s3]);
2214                                 d   = md->params[s3].regoff;
2215
2216                                 if (var->flags & PREALLOC) /* argument was precolored? */
2217                                         continue;
2218
2219                                 /* TODO: document me */
2220 #if !defined(ENABLE_SOFTFLOAT)
2221                                 if (IS_INT_LNG_TYPE(var->type)) {
2222 #endif /* !defined(ENABLE_SOFTFLOAT) */
2223                                         if (!md->params[s3].inmemory) {
2224                                                 s1 = emit_load(jd, iptr, var, d);
2225
2226                                                 if (IS_2_WORD_TYPE(var->type))
2227                                                         M_LNGMOVE(s1, d);
2228                                                 else
2229                                                         M_INTMOVE(s1, d);
2230                                         }
2231                                         else {
2232                                                 if (IS_2_WORD_TYPE(var->type)) {
2233                                                         s1 = emit_load(jd, iptr, var, REG_ITMP12_PACKED);
2234                                                         M_LST(s1, REG_SP, d);
2235                                                 }
2236                                                 else {
2237                                                         s1 = emit_load(jd, iptr, var, REG_ITMP1);
2238                                                         M_IST(s1, REG_SP, d);
2239                                                 }
2240                                         }
2241 #if !defined(ENABLE_SOFTFLOAT)
2242                                 }
2243                                 else {
2244                                         if (!md->params[s3].inmemory) {
2245                                                 s1 = emit_load(jd, iptr, var, REG_FTMP1);
2246                                                 if (IS_2_WORD_TYPE(var->type))
2247                                                         M_CAST_D2L(s1, d);
2248                                                 else
2249                                                         M_CAST_F2I(s1, d);
2250                                         }
2251                                         else {
2252                                                 s1 = emit_load(jd, iptr, var, REG_FTMP1);
2253                                                 if (IS_2_WORD_TYPE(var->type))
2254                                                         M_DST(s1, REG_SP, d);
2255                                                 else
2256                                                         M_FST(s1, REG_SP, d);
2257                                         }
2258                                 }
2259 #endif /* !defined(ENABLE_SOFTFLOAT) */
2260                         }
2261
2262                         switch (iptr->opc) {
2263                         case ICMD_BUILTIN:
2264
2265                                 if (bte->stub == NULL) {
2266                                         disp = dseg_add_functionptr(cd, bte->fp);
2267                                 } else {
2268                                         disp = dseg_add_functionptr(cd, bte->stub);
2269                                 }
2270
2271                                 M_DSEG_LOAD(REG_PV, disp); /* pointer to built-in-function */
2272
2273                                 /* generate the actual call */
2274
2275                                 M_MOV(REG_LR, REG_PC);
2276                                 M_MOV(REG_PC, REG_PV);
2277                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2278                                 M_RECOMPUTE_PV(s1);
2279                                 break;
2280
2281                         case ICMD_INVOKESPECIAL:
2282                                 emit_nullpointer_check(cd, iptr, REG_A0);
2283                                 /* fall through */
2284
2285                         case ICMD_INVOKESTATIC:
2286                                 if (lm == NULL) {
2287                                         disp = dseg_add_unique_address(cd, NULL);
2288
2289                                         patcher_add_patch_ref(jd, PATCHER_invokestatic_special,
2290                                                                                 um, disp);
2291                                 }
2292                                 else
2293                                         disp = dseg_add_address(cd, lm->stubroutine);
2294
2295                                 M_DSEG_LOAD(REG_PV, disp);            /* Pointer to method */
2296
2297                                 /* generate the actual call */
2298
2299                                 M_MOV(REG_LR, REG_PC);
2300                                 M_MOV(REG_PC, REG_PV);
2301                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2302                                 M_RECOMPUTE_PV(s1);
2303                                 break;
2304
2305                         case ICMD_INVOKEVIRTUAL:
2306                                 if (lm == NULL) {
2307                                         patcher_add_patch_ref(jd, PATCHER_invokevirtual, um, 0);
2308
2309                                         s1 = 0;
2310                                 }
2311                                 else
2312                                         s1 = OFFSET(vftbl_t, table[0]) +
2313                                                 sizeof(methodptr) * lm->vftblindex;
2314
2315                                 /* implicit null-pointer check */
2316                                 M_LDR_INTERN(REG_METHODPTR, REG_A0,
2317                                                          OFFSET(java_object_t, vftbl));
2318                                 M_LDR_INTERN(REG_PV, REG_METHODPTR, s1);
2319
2320                                 /* generate the actual call */
2321
2322                                 M_MOV(REG_LR, REG_PC);
2323                                 M_MOV(REG_PC, REG_PV);
2324                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2325                                 M_RECOMPUTE_PV(s1);
2326                                 break;
2327
2328                         case ICMD_INVOKEINTERFACE:
2329                                 if (lm == NULL) {
2330                                         patcher_add_patch_ref(jd, PATCHER_invokeinterface, um, 0);
2331
2332                                         s1 = 0;
2333                                         s2 = 0;
2334                                 }
2335                                 else {
2336                                         s1 = OFFSET(vftbl_t, interfacetable[0]) -
2337                                                 sizeof(methodptr*) * lm->class->index;
2338                                         s2 = sizeof(methodptr) * (lm - lm->class->methods);
2339                                 }
2340
2341                                 /* implicit null-pointer check */
2342                                 M_LDR_INTERN(REG_METHODPTR, REG_A0,
2343                                                          OFFSET(java_object_t, vftbl));
2344                                 M_LDR_INTERN(REG_METHODPTR, REG_METHODPTR, s1);
2345                                 M_LDR_INTERN(REG_PV, REG_METHODPTR, s2);
2346
2347                                 /* generate the actual call */
2348
2349                                 M_MOV(REG_LR, REG_PC);
2350                                 M_MOV(REG_PC, REG_PV);
2351                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2352                                 M_RECOMPUTE_PV(s1);
2353                                 break;
2354                         }
2355
2356                         /* store size of call code in replacement point */
2357                         REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2358
2359                         /* store return value */
2360
2361                         d = md->returntype.type;
2362
2363 #if !defined(__SOFTFP__)
2364                         /* TODO: this is only a hack, since we use R0/R1 for float
2365                            return!  this depends on gcc; it is independent from
2366                            our ENABLE_SOFTFLOAT define */
2367                         if (iptr->opc == ICMD_BUILTIN && d != TYPE_VOID && IS_FLT_DBL_TYPE(d)) {
2368 #if 0 && !defined(NDEBUG)
2369                                 dolog("BUILTIN that returns float or double (%s.%s)", m->class->name->text, m->name->text);
2370 #endif
2371                                 /* we cannot use this macro, since it is not defined
2372                                    in ENABLE_SOFTFLOAT M_CAST_FLT_TO_INT_TYPED(d,
2373                                    REG_FRESULT, REG_RESULT_TYPED(d)); */
2374                                 if (IS_2_WORD_TYPE(d)) {
2375                                         DCD(0xed2d8102); /* stfd    f0, [sp, #-8]! */
2376                                         M_LDRD_UPDATE(REG_RESULT_PACKED, REG_SP, 8);
2377                                 } else {
2378                                         DCD(0xed2d0101); /* stfs    f0, [sp, #-4]!*/
2379                                         M_LDR_UPDATE(REG_RESULT, REG_SP, 4);
2380                                 }
2381                         }
2382 #endif
2383
2384                         if (d != TYPE_VOID) {
2385 #if !defined(ENABLE_SOFTFLOAT)
2386                                 if (IS_INT_LNG_TYPE(d)) {
2387 #endif /* !defined(ENABLE_SOFTFLOAT) */
2388                                         if (IS_2_WORD_TYPE(d)) {
2389                                                 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
2390                                                 M_LNGMOVE(REG_RESULT_PACKED, s1);
2391                                         }
2392                                         else {
2393                                                 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2394                                                 M_INTMOVE(REG_RESULT, s1);
2395                                         }
2396
2397 #if !defined(ENABLE_SOFTFLOAT)
2398                                 } else {
2399                                         s1 = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
2400                                         if (IS_2_WORD_TYPE(d))
2401                                                 M_CAST_L2D(REG_RESULT_PACKED, s1);
2402                                         else
2403                                                 M_CAST_I2F(REG_RESULT, s1);
2404                                 }
2405 #endif /* !defined(ENABLE_SOFTFLOAT) */
2406
2407                                 emit_store_dst(jd, iptr, s1);
2408                         }
2409                         break;
2410
2411                 case ICMD_CHECKCAST:  /* ..., objectref ==> ..., objectref            */
2412
2413                         if (!(iptr->flags.bits & INS_FLAG_ARRAY)) {
2414                                 /* object type cast-check */
2415
2416                         classinfo *super;
2417                         s4         superindex;
2418
2419                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2420                                 super      = NULL;
2421                                 superindex = 0;
2422                         }
2423                         else {
2424                                 super      = iptr->sx.s23.s3.c.cls;
2425                                 superindex = super->index;
2426                         }
2427
2428                                 if ((super == NULL) || !(super->flags & ACC_INTERFACE))
2429                                         CODEGEN_CRITICAL_SECTION_NEW;
2430
2431                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2432
2433                         /* if class is not resolved, check which code to call */
2434
2435                         if (super == NULL) {
2436                                 M_TST(s1, s1);
2437                                 emit_label_beq(cd, BRANCH_LABEL_1);
2438
2439                                 disp = dseg_add_unique_s4(cd, 0); /* super->flags */
2440                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_flags,
2441                                                     iptr->sx.s23.s3.c.ref, disp);
2442
2443                                 M_DSEG_LOAD(REG_ITMP2, disp);
2444                                 disp = dseg_add_s4(cd, ACC_INTERFACE);
2445                                 M_DSEG_LOAD(REG_ITMP3, disp);
2446                                 M_TST(REG_ITMP2, REG_ITMP3);
2447                                 emit_label_beq(cd, BRANCH_LABEL_2);
2448                         }
2449
2450                         /* interface checkcast code */
2451
2452                         if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2453                                 if ((super == NULL) || !IS_IMM(superindex)) {
2454                                         disp = dseg_add_unique_s4(cd, superindex);
2455                                 }
2456                                 if (super == NULL) {
2457                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_index,
2458                                                             iptr->sx.s23.s3.c.ref, disp);
2459                                 }
2460                                 else {
2461                                         M_TST(s1, s1);
2462                                         emit_label_beq(cd, BRANCH_LABEL_3);
2463                                 }
2464
2465                                 M_LDR_INTERN(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
2466                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, interfacetablelength));
2467
2468                                 /* we put unresolved or non-immediate superindices onto dseg */
2469                                 if ((super == NULL) || !IS_IMM(superindex)) {
2470                                         /* disp was computed before we added the patcher */
2471                                         M_DSEG_LOAD(REG_ITMP2, disp);
2472                                         M_CMP(REG_ITMP3, REG_ITMP2);
2473                                 } else {
2474                                         assert(IS_IMM(superindex));
2475                                         M_CMP_IMM(REG_ITMP3, superindex);
2476                                 }
2477
2478                                 emit_classcast_check(cd, iptr, BRANCH_LE, REG_ITMP3, s1);
2479
2480                                 /* if we loaded the superindex out of the dseg above, we do
2481                                    things differently here! */
2482                                 if ((super == NULL) || !IS_IMM(superindex)) {
2483
2484                                         M_LDR_INTERN(REG_ITMP3, s1, OFFSET(java_object_t, vftbl));
2485
2486                                         /* this assumes something */
2487                                         assert(OFFSET(vftbl_t, interfacetable[0]) == 0);
2488
2489                                         /* this does: REG_ITMP3 - superindex * sizeof(methodptr*) */
2490                                         assert(sizeof(methodptr*) == 4);
2491                                         M_SUB(REG_ITMP2, REG_ITMP3, REG_LSL(REG_ITMP2, 2));
2492
2493                                         s2 = 0;
2494
2495                                 } else {
2496
2497                                         s2 = OFFSET(vftbl_t, interfacetable[0]) -
2498                                                                 superindex * sizeof(methodptr*);
2499
2500                                 }
2501
2502                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, s2);
2503                                 M_TST(REG_ITMP3, REG_ITMP3);
2504                                 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_ITMP3, s1);
2505
2506                                 if (super == NULL)
2507                                         emit_label_br(cd, BRANCH_LABEL_4);
2508                                 else
2509                                         emit_label(cd, BRANCH_LABEL_3);
2510                         }
2511
2512                         /* class checkcast code */
2513
2514                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2515                                 if (super == NULL) {
2516                                         emit_label(cd, BRANCH_LABEL_2);
2517
2518                                         disp = dseg_add_unique_address(cd, NULL);
2519
2520                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_vftbl,
2521                                                             iptr->sx.s23.s3.c.ref,
2522                                                                                 disp);
2523                                 }
2524                                 else {
2525                                         disp = dseg_add_address(cd, super->vftbl);
2526
2527                                         M_TST(s1, s1);
2528                                         emit_label_beq(cd, BRANCH_LABEL_5);
2529                                 }
2530
2531                                 M_LDR_INTERN(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
2532                                 M_DSEG_LOAD(REG_ITMP3, disp);
2533
2534                                 CODEGEN_CRITICAL_SECTION_START;
2535
2536                                 M_LDR_INTERN(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, baseval));
2537                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, baseval));
2538                                 M_SUB(REG_ITMP2, REG_ITMP2, REG_ITMP3);
2539                                 M_DSEG_LOAD(REG_ITMP3, disp);
2540                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, diffval));
2541
2542                                 CODEGEN_CRITICAL_SECTION_END;
2543
2544                                 M_CMP(REG_ITMP2, REG_ITMP3);
2545                                 emit_classcast_check(cd, iptr, BRANCH_UGT, 0, s1);
2546
2547                                 if (super != NULL)
2548                                         emit_label(cd, BRANCH_LABEL_5);
2549                         }
2550
2551                         if (super == NULL) {
2552                                 emit_label(cd, BRANCH_LABEL_1);
2553                                 emit_label(cd, BRANCH_LABEL_4);
2554                         }
2555
2556                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
2557                         }
2558                         else {
2559                                 /* array type cast-check */
2560
2561                                 s1 = emit_load_s1(jd, iptr, REG_A0);
2562                                 M_INTMOVE(s1, REG_A0);
2563
2564                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2565                                         disp = dseg_add_unique_address(cd, NULL);
2566
2567                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
2568                                                                                 iptr->sx.s23.s3.c.ref,
2569                                                                                 disp);
2570                                 }
2571                                 else
2572                                         disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2573
2574                                 M_DSEG_LOAD(REG_A1, disp);
2575                                 disp = dseg_add_functionptr(cd, BUILTIN_arraycheckcast);
2576                                 M_DSEG_BRANCH(disp);
2577
2578                                 /* recompute pv */
2579                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2580                                 M_RECOMPUTE_PV(disp);
2581
2582                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2583                                 M_TST(REG_RESULT, REG_RESULT);
2584                                 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_RESULT, s1);
2585
2586                                 d = codegen_reg_of_dst(jd, iptr, s1);
2587                         }
2588
2589                         M_INTMOVE(s1, d);
2590                         emit_store_dst(jd, iptr, d);
2591                         break;
2592
2593                 case ICMD_INSTANCEOF: /* ..., objectref ==> ..., intresult            */
2594
2595                         {
2596                         classinfo *super;
2597                         s4         superindex;
2598
2599                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2600                                 super      = NULL;
2601                                 superindex = 0;
2602                         }
2603                         else {
2604                                 super      = iptr->sx.s23.s3.c.cls;
2605                                 superindex = super->index;
2606                         }
2607
2608                         if ((super == NULL) || !(super->flags & ACC_INTERFACE))
2609                                 CODEGEN_CRITICAL_SECTION_NEW;
2610
2611                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2612                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
2613
2614                         if (s1 == d) {
2615                                 M_MOV(REG_ITMP1, s1);
2616                                 s1 = REG_ITMP1;
2617                         }
2618
2619                         /* if class is not resolved, check which code to call */
2620
2621                         if (super == NULL) {
2622                                 M_EOR(d, d, d);
2623
2624                                 M_TST(s1, s1);
2625                                 emit_label_beq(cd, BRANCH_LABEL_1);
2626
2627                                 disp = dseg_add_unique_s4(cd, 0); /* super->flags */
2628                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_flags,
2629                                                     iptr->sx.s23.s3.c.ref, disp);
2630
2631                                 M_DSEG_LOAD(REG_ITMP2, disp);
2632                                 disp = dseg_add_s4(cd, ACC_INTERFACE);
2633                                 M_DSEG_LOAD(REG_ITMP3, disp);
2634                                 M_TST(REG_ITMP2, REG_ITMP3);
2635                                 emit_label_beq(cd, BRANCH_LABEL_2);
2636                         }
2637
2638                         /* interface checkcast code */
2639
2640                         if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2641                                 if ((super == NULL) || !IS_IMM(superindex)) {
2642                                         disp = dseg_add_unique_s4(cd, superindex);
2643                                 }
2644                                 if (super == NULL) {
2645                                         /* If d == REG_ITMP2, then it's destroyed in check
2646                                            code above.  */
2647                                         if (d == REG_ITMP2)
2648                                                 M_EOR(d, d, d);
2649
2650                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_index,
2651                                                             iptr->sx.s23.s3.c.ref, disp);
2652                                 }
2653                                 else {
2654                                         M_EOR(d, d, d);
2655                                         M_TST(s1, s1);
2656                                         emit_label_beq(cd, BRANCH_LABEL_3);
2657                                 }
2658
2659                                 M_LDR_INTERN(REG_ITMP1, s1, OFFSET(java_object_t, vftbl));
2660                                 M_LDR_INTERN(REG_ITMP3,
2661                                                          REG_ITMP1, OFFSET(vftbl_t, interfacetablelength));
2662
2663                                 /* we put unresolved or non-immediate superindices onto dseg
2664                                    and do things slightly different */
2665                                 if ((super == NULL) || !IS_IMM(superindex)) {
2666                                         /* disp was computed before we added the patcher */
2667                                         M_DSEG_LOAD(REG_ITMP2, disp);
2668                                         M_CMP(REG_ITMP3, REG_ITMP2);
2669
2670                                         if (d == REG_ITMP2) {
2671                                                 M_EORLE(d, d, d);
2672                                                 M_BLE(4);
2673                                         } else {
2674                                                 M_BLE(3);
2675                                         }
2676
2677                                         /* this assumes something */
2678                                         assert(OFFSET(vftbl_t, interfacetable[0]) == 0);
2679
2680                                         /* this does: REG_ITMP3 - superindex * sizeof(methodptr*) */
2681                                         assert(sizeof(methodptr*) == 4);
2682                                         M_SUB(REG_ITMP1, REG_ITMP1, REG_LSL(REG_ITMP2, 2));
2683
2684                                         if (d == REG_ITMP2) {
2685                                                 M_EOR(d, d, d);
2686                                         }
2687
2688                                         s2 = 0;
2689
2690                                 } else {
2691                                         assert(IS_IMM(superindex));
2692                                         M_CMP_IMM(REG_ITMP3, superindex);
2693
2694                                         M_BLE(2);
2695
2696                                         s2 = OFFSET(vftbl_t, interfacetable[0]) -
2697                                                 superindex * sizeof(methodptr*);
2698
2699                                 }
2700
2701                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP1, s2);
2702                                 M_TST(REG_ITMP3, REG_ITMP3);
2703                                 M_MOVNE_IMM(1, d);
2704
2705                                 if (super == NULL)
2706                                         emit_label_br(cd, BRANCH_LABEL_4);
2707                                 else
2708                                         emit_label(cd, BRANCH_LABEL_3);
2709                         }
2710
2711                         /* class checkcast code */
2712
2713                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2714                                 if (super == NULL) {
2715                                         emit_label(cd, BRANCH_LABEL_2);
2716
2717                                         disp = dseg_add_unique_address(cd, NULL);
2718
2719                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_vftbl,
2720                                                             iptr->sx.s23.s3.c.ref, disp);
2721                                 }
2722                                 else {
2723                                         disp = dseg_add_address(cd, super->vftbl);
2724
2725                                         M_EOR(d, d, d);
2726                                         M_TST(s1, s1);
2727                                         emit_label_beq(cd, BRANCH_LABEL_5);
2728                                 }
2729
2730                                 M_LDR_INTERN(REG_ITMP1, s1, OFFSET(java_object_t, vftbl));
2731                                 M_DSEG_LOAD(REG_ITMP2, disp);
2732
2733                                 CODEGEN_CRITICAL_SECTION_START;
2734
2735                                 M_LDR_INTERN(REG_ITMP1, REG_ITMP1, OFFSET(vftbl_t, baseval));
2736                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2737                                 M_LDR_INTERN(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2738
2739                                 CODEGEN_CRITICAL_SECTION_END;
2740
2741                                 M_SUB(REG_ITMP1, REG_ITMP1, REG_ITMP3);
2742                                 M_CMP(REG_ITMP1, REG_ITMP2);
2743                                 /* If d == REG_ITMP2, then it's destroyed */
2744                                 if (d == REG_ITMP2)
2745                                         M_EOR(d, d, d);
2746                                 M_MOVLS_IMM(1, d);
2747
2748                                 if (super != NULL)
2749                                         emit_label(cd, BRANCH_LABEL_5);
2750                         }
2751
2752                         if (super == NULL) {
2753                                 emit_label(cd, BRANCH_LABEL_1);
2754                                 emit_label(cd, BRANCH_LABEL_4);
2755                         }
2756
2757                         }
2758
2759                         emit_store_dst(jd, iptr, d);
2760                         break;
2761
2762                 case ICMD_MULTIANEWARRAY:/* ..., cnt1, [cnt2, ...] ==> ..., arrayref  */
2763
2764                         /* copy sizes to stack if necessary  */
2765
2766                         MCODECHECK((iptr->s1.argcount << 1) + 64);
2767
2768                         for (s1 = iptr->s1.argcount; --s1 >= 0; ) {
2769
2770                                 var = VAR(iptr->sx.s23.s2.args[s1]);
2771
2772                                 /* copy SAVEDVAR sizes to stack */
2773
2774                                 if (!(var->flags & PREALLOC)) {
2775                                         s2 = emit_load(jd, iptr, var, REG_ITMP1);
2776                                         M_STR(s2, REG_SP, s1 * 4);
2777                                 }
2778                         }
2779
2780                         /* a0 = dimension count */
2781
2782                         assert(IS_IMM(iptr->s1.argcount));
2783                         M_MOV_IMM(REG_A0, iptr->s1.argcount);
2784
2785                         /* is patcher function set? */
2786
2787                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2788                                 disp = dseg_add_unique_address(cd, NULL);
2789
2790                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
2791                                                                         iptr->sx.s23.s3.c.ref, disp);
2792                         }
2793                         else
2794                                 disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2795
2796                         /* a1 = arraydescriptor */
2797
2798                         M_DSEG_LOAD(REG_A1, disp);
2799
2800                         /* a2 = pointer to dimensions = stack pointer */
2801
2802                         M_INTMOVE(REG_SP, REG_A2);
2803
2804                         /* call builtin_multianewarray here */
2805
2806                         disp = dseg_add_functionptr(cd, BUILTIN_multianewarray);
2807                         M_DSEG_BRANCH(disp);
2808
2809                         /* recompute pv */
2810
2811                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2812                         M_RECOMPUTE_PV(s1);
2813
2814                         /* check for exception before result assignment */
2815
2816                         emit_exception_check(cd, iptr);
2817
2818                         /* get arrayref */
2819
2820                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2821                         M_INTMOVE(REG_RESULT, d);
2822                         emit_store_dst(jd, iptr, d);
2823                         break;
2824
2825                 case ICMD_CHECKNULL:  /* ..., objectref  ==> ..., objectref           */
2826
2827                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2828                         emit_nullpointer_check(cd, iptr, s1);
2829                         break;
2830
2831                 default:
2832                         exceptions_throw_internalerror("Unknown ICMD %d during code generation",
2833                                                                                    iptr->opc);
2834                         return false;
2835                 } /* the big switch */
2836
2837                 } /* for all instructions */
2838
2839         } /* for all basic blocks */
2840
2841         dseg_createlinenumbertable(cd);
2842
2843
2844         /* generate traps */
2845
2846         emit_patcher_traps(jd);
2847
2848         /* everything's ok */
2849
2850         return true;
2851 }
2852
2853
2854 /* codegen_emit_stub_compiler **************************************************
2855
2856    Emits a stub routine which calls the compiler.
2857
2858 *******************************************************************************/
2859
2860 void codegen_emit_stub_compiler(jitdata *jd)
2861 {
2862         methodinfo  *m;
2863         codegendata *cd;
2864
2865         /* get required compiler data */
2866
2867         m  = jd->m;
2868         cd = jd->cd;
2869
2870         /* code for the stub */
2871
2872         M_LDR_INTERN(REG_ITMP1, REG_PC, -(2 * 4 + 2 * SIZEOF_VOID_P));
2873         M_LDR_INTERN(REG_PC, REG_PC, -(3 * 4 + 3 * SIZEOF_VOID_P));
2874 }
2875
2876
2877 /* codegen_emit_stub_native ****************************************************
2878
2879    Emits a stub routine which calls a native method.
2880
2881 *******************************************************************************/
2882
2883 void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f, int skipparams)
2884 {
2885         methodinfo  *m;
2886         codeinfo    *code;
2887         codegendata *cd;
2888         methoddesc  *md;
2889         s4           i, j;
2890         s4           t;
2891         s4           disp, funcdisp, s1, s2;
2892
2893         /* get required compiler data */
2894
2895         m    = jd->m;
2896         code = jd->code;
2897         cd   = jd->cd;
2898
2899         /* initialize variables */
2900
2901         md = m->parseddesc;
2902
2903         /* calculate stackframe size */
2904
2905         cd->stackframesize =
2906                 4 +                                                /* return address  */
2907                 sizeof(stackframeinfo) +                           /* stackframeinfo  */
2908                 sizeof(localref_table) +                           /* localref_table  */
2909                 nmd->memuse * 4;                                   /* stack arguments */
2910
2911         /* align stack to 8-byte */
2912
2913         cd->stackframesize = (cd->stackframesize + 4) & ~4;
2914
2915         /* create method header */
2916
2917         (void) dseg_add_unique_address(cd, code);              /* CodeinfoPointer */
2918         (void) dseg_add_unique_s4(cd, cd->stackframesize);     /* FrameSize       */
2919         (void) dseg_add_unique_s4(cd, 0);                      /* IsSync          */
2920         (void) dseg_add_unique_s4(cd, 0);                      /* IsLeaf          */
2921         (void) dseg_add_unique_s4(cd, 0);                      /* IntSave         */
2922         (void) dseg_add_unique_s4(cd, 0);                      /* FltSave         */
2923         (void) dseg_addlinenumbertablesize(cd);
2924         (void) dseg_add_unique_s4(cd, 0);                      /* ExTableSize     */
2925
2926         /* generate stub code */
2927
2928         M_STMFD(1<<REG_LR, REG_SP);
2929         M_SUB_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - 1);
2930
2931 #if !defined(NDEBUG)
2932         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
2933                 emit_verbosecall_enter(jd);
2934 #endif
2935
2936         /* get function address (this must happen before the stackframeinfo) */
2937
2938         funcdisp = dseg_add_functionptr(cd, f);
2939
2940         if (f == NULL)
2941                 patcher_add_patch_ref(jd, PATCHER_resolve_native_function, m, funcdisp);
2942
2943 #if defined(ENABLE_GC_CACAO)
2944         /* Save callee saved integer registers in stackframeinfo (GC may
2945            need to recover them during a collection). */
2946
2947         disp = cd->stackframesize - SIZEOF_VOID_P - sizeof(stackframeinfo) +
2948                 OFFSET(stackframeinfo, intregs);
2949
2950         for (i = 0; i < INT_SAV_CNT; i++)
2951                 M_STR_INTERN(abi_registers_integer_saved[i], REG_SP, disp + i * 4);
2952 #endif
2953
2954         /* Save integer and float argument registers (these are 4
2955            registers, stack is 8-byte aligned). */
2956
2957         M_STMFD(BITMASK_ARGS, REG_SP);
2958         /* TODO: floating point */
2959
2960         /* create native stackframe info */
2961
2962         M_ADD_IMM(REG_A0, REG_SP, 4*4);
2963         M_MOV(REG_A1, REG_PV);
2964         disp = dseg_add_functionptr(cd, codegen_start_native_call);
2965         M_DSEG_BRANCH(disp);
2966
2967         /* recompute pv */
2968
2969         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2970         M_RECOMPUTE_PV(s1);
2971
2972         /* remember class argument */
2973
2974         if (m->flags & ACC_STATIC)
2975                 M_MOV(REG_ITMP3, REG_RESULT);
2976
2977         /* Restore integer and float argument registers (these are 4
2978            registers, stack is 8-byte aligned). */
2979
2980         M_LDMFD(BITMASK_ARGS, REG_SP);
2981         /* TODO: floating point */
2982
2983         /* copy or spill arguments to new locations */
2984         /* ATTENTION: the ARM has only integer argument registers! */
2985
2986         for (i = md->paramcount - 1, j = i + skipparams; i >= 0; i--, j--) {
2987                 t = md->paramtypes[i].type;
2988
2989                 if (!md->params[i].inmemory) {
2990                         s1 = md->params[i].regoff;
2991                         s2 = nmd->params[j].regoff;
2992
2993                         if (!nmd->params[j].inmemory) {
2994 #if !defined(__ARM_EABI__)
2995                                 SPLIT_OPEN(t, s2, REG_ITMP1);
2996 #endif
2997
2998                                 if (IS_2_WORD_TYPE(t))
2999                                         M_LNGMOVE(s1, s2);
3000                                 else
3001                                         M_INTMOVE(s1, s2);
3002
3003 #if !defined(__ARM_EABI__)
3004                                 SPLIT_STORE_AND_CLOSE(t, s2, 0);
3005 #endif
3006                         }
3007                         else {
3008                                 if (IS_2_WORD_TYPE(t))
3009                                         M_LST(s1, REG_SP, s2);
3010                                 else
3011                                         M_IST(s1, REG_SP, s2);
3012                         }
3013                 }
3014                 else {
3015                         s1 = md->params[i].regoff + cd->stackframesize;
3016                         s2 = nmd->params[j].regoff;
3017
3018                         if (IS_2_WORD_TYPE(t)) {
3019                                 M_LLD(REG_ITMP12_PACKED, REG_SP, s1);
3020                                 M_LST(REG_ITMP12_PACKED, REG_SP, s2);
3021                         }
3022                         else {
3023                                 M_ILD(REG_ITMP1, REG_SP, s1);
3024                                 M_IST(REG_ITMP1, REG_SP, s2);
3025                         }
3026                 }
3027         }
3028
3029         /* Handle native Java methods. */
3030
3031         if (m->flags & ACC_NATIVE) {
3032                 /* put class into second argument register */
3033
3034                 if (m->flags & ACC_STATIC)
3035                         M_MOV(REG_A1, REG_ITMP3);
3036
3037                 /* put env into first argument register */
3038
3039                 disp = dseg_add_address(cd, _Jv_env);
3040                 M_DSEG_LOAD(REG_A0, disp);
3041         }
3042
3043         /* do the native function call */
3044
3045         M_DSEG_BRANCH(funcdisp);
3046
3047         /* recompute pv */
3048         /* TODO: this is only needed because of the tracer ... do we
3049            really need it? */
3050
3051         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3052         M_RECOMPUTE_PV(s1);
3053
3054 #if !defined(__SOFTFP__)
3055         /* TODO: this is only a hack, since we use R0/R1 for float return! */
3056         /* this depends on gcc; it is independent from our ENABLE_SOFTFLOAT define */
3057         if (md->returntype.type != TYPE_VOID && IS_FLT_DBL_TYPE(md->returntype.type)) {
3058 #if 0 && !defined(NDEBUG)
3059                 dolog("NATIVESTUB that returns float or double (%s.%s)", m->class->name->text, m->name->text);
3060 #endif
3061                 /* we cannot use this macro, since it is not defined in ENABLE_SOFTFLOAT */
3062                 /* M_CAST_FLT_TO_INT_TYPED(md->returntype.type, REG_FRESULT, REG_RESULT_TYPED(md->returntype.type)); */
3063                 if (IS_2_WORD_TYPE(md->returntype.type)) {
3064                         DCD(0xed2d8102); /* stfd    f0, [sp, #-8]! */
3065                         M_LDRD_UPDATE(REG_RESULT_PACKED, REG_SP, 8);
3066                 } else {
3067                         DCD(0xed2d0101); /* stfs    f0, [sp, #-4]!*/
3068                         M_LDR_UPDATE(REG_RESULT, REG_SP, 4);
3069                 }
3070         }
3071 #endif
3072
3073 #if !defined(NDEBUG)
3074         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
3075                 emit_verbosecall_exit(jd);
3076 #endif
3077
3078         /* remove native stackframe info */
3079         /* TODO: improve this store/load */
3080
3081         M_STMFD(BITMASK_RESULT, REG_SP);
3082
3083         M_ADD_IMM(REG_A0, REG_SP, 2*4);
3084         M_MOV(REG_A1, REG_PV);
3085         disp = dseg_add_functionptr(cd, codegen_finish_native_call);
3086         M_DSEG_BRANCH(disp);
3087         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3088         M_RECOMPUTE_PV(s1);
3089
3090         M_MOV(REG_ITMP1_XPTR, REG_RESULT);
3091         M_LDMFD(BITMASK_RESULT, REG_SP);
3092
3093 #if defined(ENABLE_GC_CACAO)
3094         /* restore callee saved int registers from stackframeinfo (GC might have  */
3095         /* modified them during a collection).                                    */
3096
3097         disp = cd->stackframesize - SIZEOF_VOID_P - sizeof(stackframeinfo) +
3098                 OFFSET(stackframeinfo, intregs);
3099
3100         for (i = 0; i < INT_SAV_CNT; i++)
3101                 M_LDR_INTERN(abi_registers_integer_saved[i], REG_SP, disp + i * 4);
3102 #endif
3103
3104         /* finish stub code, but do not yet return to caller */
3105
3106         M_ADD_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - 1);
3107         M_LDMFD(1<<REG_LR, REG_SP);
3108
3109         /* check for exception */
3110
3111         M_TST(REG_ITMP1_XPTR, REG_ITMP1_XPTR);
3112         M_MOVEQ(REG_LR, REG_PC);            /* if no exception, return to caller  */
3113
3114         /* handle exception here */
3115
3116         M_SUB_IMM(REG_ITMP2_XPC, REG_LR, 4);/* move fault address into xpc        */
3117
3118         disp = dseg_add_functionptr(cd, asm_handle_nat_exception);
3119         M_DSEG_LOAD(REG_ITMP3, disp);       /* load asm exception handler address */
3120         M_MOV(REG_PC, REG_ITMP3);           /* jump to asm exception handler      */
3121
3122         /* generate patcher stubs */
3123
3124         emit_patcher_traps(jd);
3125 }
3126
3127
3128 /* asm_debug *******************************************************************
3129
3130    Lazy debugger!
3131
3132 *******************************************************************************/
3133
3134 void asm_debug(int a1, int a2, int a3, int a4)
3135 {
3136         printf("===> i am going to exit after this debugging message!\n");
3137         printf("got asm_debug(%p, %p, %p, %p)\n",(void*)a1,(void*)a2,(void*)a3,(void*)a4);
3138         vm_abort("leave you now");
3139 }
3140
3141
3142 /*
3143  * These are local overrides for various environment variables in Emacs.
3144  * Please do not remove this and leave it at the end of the file, where
3145  * Emacs will automagically detect them.
3146  * ---------------------------------------------------------------------
3147  * Local variables:
3148  * mode: c
3149  * indent-tabs-mode: t
3150  * c-basic-offset: 4
3151  * tab-width: 4
3152  * End:
3153  * vim:noexpandtab:sw=4:ts=4:
3154  */