src/vm/jit/arm/codegen.c

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