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 = code_is_leafmethod(code) ? 0 : 1; /* space to save the LR */
 124
 125         savedregs_num += (INT_SAV_CNT - rd->savintreguse);
 126         /*savedregs_num += (FLT_SAV_CNT - rd->savfltreguse);*/
 127         assert((FLT_SAV_CNT - rd->savfltreguse) == 0);
 128
 129         spilledregs_num = rd->memuse;
 130
 131 #if defined(ENABLE_THREADS)        /* space to save argument of monitor_enter */
 132         if (checksync && (m->flags & ACC_SYNCHRONIZED))
 133                 spilledregs_num++;
 134 #endif
 135
 136         cd->stackframesize = spilledregs_num * 8 + savedregs_num * 4;
 137
 138         /* XXX QUICK FIX: We shouldn't align the stack in Java code, but
 139            only in native stubs. */
 140         /* align stack to 8-byte */
 141
 142         cd->stackframesize = (cd->stackframesize + 4) & ~4;
 143
 144         /* SECTION: Method Header */
 145         /* create method header */
 146
 147         (void) dseg_add_unique_address(cd, code);              /* CodeinfoPointer */
 148         (void) dseg_add_unique_s4(cd, cd->stackframesize);     /* FrameSize       */
 149
 150 #if defined(ENABLE_THREADS)
 151         /* IsSync contains the offset relative to the stack pointer for the
 152            argument of monitor_exit used in the exception handler. Since the
 153            offset could be zero and give a wrong meaning of the flag it is
 154            offset by one.
 155         */
 156
 157         if (checksync && (m->flags & ACC_SYNCHRONIZED))
 158                 (void) dseg_add_unique_s4(cd, rd->memuse * 8 + 4);/* IsSync         */
 159         else
 160 #endif
 161                 (void) dseg_add_unique_s4(cd, 0);                  /* IsSync          */
 162
 163         /* REMOVEME: We still need it for exception handling in assembler. */
 164
 165         if (code_is_leafmethod(code))
 166                 (void) dseg_add_unique_s4(cd, 1);
 167         else
 168                 (void) dseg_add_unique_s4(cd, 0);
 169
 170         (void) dseg_add_unique_s4(cd, INT_SAV_CNT - rd->savintreguse); /* IntSave */
 171         (void) dseg_add_unique_s4(cd, FLT_SAV_CNT - rd->savfltreguse); /* FltSave */
 172         (void) dseg_addlinenumbertablesize(cd);
 173         (void) dseg_add_unique_s4(cd, jd->exceptiontablelength); /* ExTableSize   */
 174
 175         /* create exception table */
 176
 177         for (ex = jd->exceptiontable; ex != NULL; ex = ex->down) {
 178                 dseg_add_target(cd, ex->start);
 179                 dseg_add_target(cd, ex->end);
 180                 dseg_add_target(cd, ex->handler);
 181                 (void) dseg_add_unique_address(cd, ex->catchtype.any);
 182         }
 183
 184         /* save return address and used callee saved registers */
 185
 186         savedregs_bitmask = 0;
 187
 188         if (!code_is_leafmethod(code))
 189                 savedregs_bitmask = (1<<REG_LR);
 190
 191         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--)
 192                 savedregs_bitmask |= (1<<(rd->savintregs[i]));
 193
 194 #if !defined(NDEBUG)
 195         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
 196                 log_text("!!! CODEGEN: floating-point callee saved registers are not saved to stack (SEVERE! STACK IS MESSED UP!)");
 197                 /* TODO: floating-point */
 198         }
 199 #endif
 200
 201         if (savedregs_bitmask)
 202                 M_STMFD(savedregs_bitmask, REG_SP);
 203
 204         /* create additional stack frame for spilled variables (if necessary) */
 205
 206         if ((cd->stackframesize / 4 - savedregs_num) > 0)
 207                 M_SUB_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - savedregs_num);
 208
 209         /* take arguments out of register or stack frame */
 210
 211         md = m->parseddesc;
 212         for (i = 0, len = 0; i < md->paramcount; i++) {
 213                 s1 = md->params[i].regoff;
 214                 t = md->paramtypes[i].type;
 215
 216                 varindex = jd->local_map[len * 5 + t];
 217
 218                 len += (IS_2_WORD_TYPE(t)) ? 2 : 1;          /* 2 word type arguments */
 219
 220                 if (varindex == UNUSED)
 221                         continue;
 222
 223                 var = VAR(varindex);
 224
 225                 /* ATTENTION: we use interger registers for all arguments (even float) */
 226 #if !defined(ENABLE_SOFTFLOAT)
 227                 if (IS_INT_LNG_TYPE(t)) {
 228 #endif
 229                         if (!md->params[i].inmemory) {
 230                                 if (!(var->flags & INMEMORY)) {
 231                                         if (IS_2_WORD_TYPE(t))
 232                                                 M_LNGMOVE(s1, var->vv.regoff);
 233                                         else
 234                                                 M_INTMOVE(s1, var->vv.regoff);
 235                                 }
 236                                 else {
 237                                         if (IS_2_WORD_TYPE(t))
 238                                                 M_LST(s1, REG_SP, var->vv.regoff);
 239                                         else
 240                                                 M_IST(s1, REG_SP, var->vv.regoff);
 241                                 }
 242                         }
 243                         else {                                   /* stack arguments       */
 244                                 if (!(var->flags & INMEMORY)) {      /* stack arg -> register */
 245                                         if (IS_2_WORD_TYPE(t))
 246                                                 M_LLD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 247                                         else
 248                                                 M_ILD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 249                                 }
 250                                 else {                               /* stack arg -> spilled  */
 251                                         /* Reuse Memory Position on Caller Stack */
 252                                         var->vv.regoff = cd->stackframesize + s1;
 253                                 }
 254                         }
 255 #if !defined(ENABLE_SOFTFLOAT)
 256                 }
 257                 else {
 258                         if (!md->params[i].inmemory) {
 259                                 if (!(var->flags & INMEMORY)) {
 260                                         if (IS_2_WORD_TYPE(t))
 261                                                 M_CAST_L2D(s1, var->vv.regoff);
 262                                         else
 263                                                 M_CAST_I2F(s1, var->vv.regoff);
 264                                 }
 265                                 else {
 266                                         if (IS_2_WORD_TYPE(t))
 267                                                 M_LST(s1, REG_SP, var->vv.regoff);
 268                                         else
 269                                                 M_IST(s1, REG_SP, var->vv.regoff);
 270                                 }
 271                         }
 272                         else {
 273                                 if (!(var->flags & INMEMORY)) {
 274                                         if (IS_2_WORD_TYPE(t))
 275                                                 M_DLD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 276                                         else
 277                                                 M_FLD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 278                                 }
 279                                 else {
 280                                         /* Reuse Memory Position on Caller Stack */
 281                                         var->vv.regoff = cd->stackframesize + s1;
 282                                 }
 283                         }
 284                 }
 285 #endif /* !defined(ENABLE_SOFTFLOAT) */
 286         }
 287
 288 #if defined(ENABLE_THREADS)
 289         /* call monitorenter function */
 290
 291         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
 292                 /* stack offset for monitor argument */
 293
 294                 s1 = rd->memuse * 8;
 295
 296 # if !defined(NDEBUG)
 297                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 298                         M_STMFD(BITMASK_ARGS, REG_SP);
 299                         s1 += 4 * 4;
 300                 }
 301 # endif
 302
 303                 /* get the correct lock object */
 304
 305                 if (m->flags & ACC_STATIC) {
 306                         disp = dseg_add_address(cd, &m->class->object.header);
 307                         M_DSEG_LOAD(REG_A0, disp);
 308                 }
 309                 else {
 310                         emit_nullpointer_check_force(cd, iptr, REG_A0);
 311                 }
 312
 313                 M_STR(REG_A0, REG_SP, s1);
 314                 disp = dseg_add_functionptr(cd, LOCK_monitor_enter);
 315                 M_DSEG_BRANCH(disp);
 316                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
 317                 M_RECOMPUTE_PV(s1);
 318
 319 # if !defined(NDEBUG)
 320                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
 321                         M_LDMFD(BITMASK_ARGS, REG_SP);
 322 # endif
 323         }
 324 #endif
 325
 326 #if !defined(NDEBUG)
 327         /* call trace function */
 328
 329         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
 330                 emit_verbosecall_enter(jd);
 331 #endif
 332
 333         /* end of header generation */
 334
 335         /* create replacement points */
 336         REPLACEMENT_POINTS_INIT(cd, jd);
 337
 338         /* SECTION: ICMD Code Generation */
 339         /* for all basic blocks */
 340
 341         for (bptr = jd->basicblocks; bptr != NULL; bptr = bptr->next) {
 342
 343                 bptr->mpc = (s4) (cd->mcodeptr - cd->mcodebase);
 344
 345                 /* is this basic block reached? */
 346
 347                 if (bptr->flags < BBREACHED)
 348                         continue;
 349
 350                 /* branch resolving */
 351
 352                 codegen_resolve_branchrefs(cd, bptr);
 353
 354                 /* handle replacement points */
 355                 REPLACEMENT_POINT_BLOCK_START(cd, bptr);
 356
 357                 /* copy interface registers to their destination */
 358
 359                 len = bptr->indepth;
 360
 361                 MCODECHECK(64+len);
 362
 363 #if defined(ENABLE_LSRA)
 364                 if (opt_lsra) {
 365                 while (len) {
 366                         len--;
 367                         var = VAR(bptr->invars[len]);
 368                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 369                                 if (!(var->flags & INMEMORY))
 370                                         d= var->vv.regoff;
 371                                 else
 372                                         d=REG_ITMP1;
 373                                 M_INTMOVE(REG_ITMP1, d);
 374                                 emit_store(jd, NULL, var, d);
 375                         }
 376                 }
 377                 } else {
 378 #endif
 379                 while (len) {
 380                         len--;
 381                         var = VAR(bptr->invars[len]);
 382
 383                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 384                                 d = codegen_reg_of_var(0, var, REG_ITMP1);
 385                                 M_INTMOVE(REG_ITMP1, d);
 386                                 emit_store(jd, NULL, var, d);
 387                         }
 388                         else {
 389                                 assert((var->flags & INOUT));
 390                         }
 391                 }
 392 #if defined(ENABLE_LSRA)
 393                 }
 394 #endif
 395
 396                 /* for all instructions */
 397                 len = bptr->icount;
 398                 currentline = 0;
 399                 for (iptr = bptr->iinstr; len > 0; len--, iptr++) {
 400
 401                         /* add line number */
 402                         if (iptr->line != currentline) {
 403                                 dseg_addlinenumber(cd, iptr->line);
 404                                 currentline = iptr->line;
 405                         }
 406
 407                         MCODECHECK(64);   /* an instruction usually needs < 64 words      */
 408
 409                         /* the big switch */
 410                         switch (iptr->opc) {
 411                 case ICMD_NOP:        /* ... ==> ...                                  */
 412                         break;
 413
 414         /* constant operations ************************************************/
 415
 416                 case ICMD_ICONST:     /* ...  ==> ..., constant                       */
 417
 418                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 419                         ICONST(d, iptr->sx.val.i);
 420                         emit_store_dst(jd, iptr, d);
 421                         break;
 422
 423                 case ICMD_ACONST:     /* ... ==> ..., constant                        */
 424
 425                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 426                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
 427                                 disp = dseg_add_unique_address(cd, NULL);
 428
 429                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
 430                                                     iptr->sx.val.c.ref, disp);
 431
 432                                 M_DSEG_LOAD(d, disp);
 433                         }
 434                         else {
 435                                 ICONST(d, (u4) iptr->sx.val.anyptr);
 436                         }
 437                         emit_store_dst(jd, iptr, d);
 438                         break;
 439
 440                 case ICMD_LCONST:     /* ...  ==> ..., constant                       */
 441
 442                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 443                         LCONST(d, iptr->sx.val.l);
 444                         emit_store_dst(jd, iptr, d);
 445                         break;
 446
 447                 case ICMD_FCONST:     /* ...  ==> ..., constant                       */
 448
 449 #if defined(ENABLE_SOFTFLOAT)
 450                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 451                         ICONST(d, iptr->sx.val.i);
 452                         emit_store_dst(jd, iptr, d);
 453 #else
 454                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 455                         FCONST(d, iptr->sx.val.f);
 456                         emit_store_dst(jd, iptr, d);
 457 #endif
 458                         break;
 459
 460                 case ICMD_DCONST:     /* ...  ==> ..., constant                       */
 461
 462 #if defined(ENABLE_SOFTFLOAT)
 463                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 464                         LCONST(d, iptr->sx.val.l);
 465                         emit_store_dst(jd, iptr, d);
 466 #else
 467                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 468                         DCONST(d, iptr->sx.val.d);
 469                         emit_store_dst(jd, iptr, d);
 470 #endif
 471                         break;
 472
 473
 474                 /* load/store/copy/move operations ************************************/
 475
 476                 case ICMD_ILOAD:      /* ...  ==> ..., content of local variable      */
 477                 case ICMD_ALOAD:      /* op1 = local variable                         */
 478                 case ICMD_FLOAD:
 479                 case ICMD_LLOAD:
 480                 case ICMD_DLOAD:
 481                 case ICMD_ISTORE:     /* ..., value  ==> ...                          */
 482                 case ICMD_FSTORE:
 483                 case ICMD_LSTORE:
 484                 case ICMD_DSTORE:
 485                 case ICMD_COPY:
 486                 case ICMD_MOVE:
 487
 488                         emit_copy(jd, iptr);
 489                         break;
 490
 491                 case ICMD_ASTORE:
 492                         if (!(iptr->flags.bits & INS_FLAG_RETADDR))
 493                                 emit_copy(jd, iptr);
 494                         break;
 495
 496                 /* pop operations *****************************************************/
 497
 498                 /* attention: double and longs are only one entry in CACAO ICMDs      */
 499
 500                 case ICMD_POP:        /* ..., value  ==> ...                          */
 501                 case ICMD_POP2:       /* ..., value, value  ==> ...                   */
 502
 503                         break;
 504
 505
 506                 /* integer operations *************************************************/
 507
 508                 case ICMD_INT2BYTE:   /* ..., value  ==> ..., value                   */
 509
 510                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 511                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 512                         M_MOV(d, REG_LSL(s1, 24));
 513                         M_MOV(d, REG_ASR(d, 24));
 514                         emit_store_dst(jd, iptr, d);
 515                         break;
 516
 517                 case ICMD_INT2CHAR:   /* ..., value  ==> ..., value                   */
 518
 519                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 520                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 521                         M_MOV(d, REG_LSL(s1, 16));
 522                         M_MOV(d, REG_LSR(d, 16)); /* ATTENTION: char is unsigned */
 523                         emit_store_dst(jd, iptr, d);
 524                         break;
 525
 526                 case ICMD_INT2SHORT:  /* ..., value  ==> ..., value                   */
 527
 528                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 529                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 530                         M_MOV(d, REG_LSL(s1, 16));
 531                         M_MOV(d, REG_ASR(d, 16));
 532                         emit_store_dst(jd, iptr, d);
 533                         break;
 534
 535                 case ICMD_I2L:        /* ..., value  ==> ..., value                   */
 536
 537                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 538                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 539                         M_INTMOVE(s1, GET_LOW_REG(d));
 540                         M_MOV(GET_HIGH_REG(d), REG_ASR(s1, 31));
 541                         emit_store_dst(jd, iptr, d);
 542                         break;
 543
 544                 case ICMD_L2I:        /* ..., value  ==> ..., value                   */
 545
 546                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 547                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 548                         M_INTMOVE(s1, d);
 549                         emit_store_dst(jd, iptr, d);
 550                         break;
 551
 552                 case ICMD_INEG:       /* ..., value  ==> ..., - value                 */
 553
 554                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 555                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 556                         M_RSB_IMM(d, s1, 0);
 557                         emit_store_dst(jd, iptr, d);
 558                         break;
 559
 560                 case ICMD_LNEG:       /* ..., value  ==> ..., - value                 */
 561
 562                         s1 = emit_load_s1(jd, iptr, REG_ITMP12_PACKED);
 563                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 564                         M_RSB_IMMS(GET_LOW_REG(d), GET_LOW_REG(s1), 0);
 565                         M_RSC_IMM(GET_HIGH_REG(d), GET_HIGH_REG(s1), 0);
 566                         emit_store_dst(jd, iptr, d);
 567                         break;
 568
 569                 case ICMD_IADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 570
 571                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 572                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 573                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 574                         M_ADD(d, s1, s2);
 575                         emit_store_dst(jd, iptr, d);
 576                         break;
 577
 578                 case ICMD_LADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 579
 580                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 581                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 582                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 583                         M_ADD_S(GET_LOW_REG(d), s1, s2);
 584                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 585                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 586                         M_ADC(GET_HIGH_REG(d), s1, s2);
 587                         emit_store_dst(jd, iptr, d);
 588                         break;
 589
 590                 case ICMD_IADDCONST:
 591                 case ICMD_IINC:
 592
 593                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 594                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 595
 596                         if (IS_IMM(iptr->sx.val.i)) {
 597                                 M_ADD_IMM(d, s1, iptr->sx.val.i);
 598                         } else if (IS_IMM(-iptr->sx.val.i)) {
 599                                 M_SUB_IMM(d, s1, (-iptr->sx.val.i));
 600                         } else {
 601                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 602                                 M_ADD(d, s1, REG_ITMP3);
 603                         }
 604
 605                         emit_store_dst(jd, iptr, d);
 606                         break;
 607
 608                 case ICMD_LADDCONST:  /* ..., value  ==> ..., value + constant        */
 609                                       /* sx.val.l = constant                          */
 610
 611                         s3 = iptr->sx.val.l & 0xffffffff;
 612                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 613                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 614                         if (IS_IMM(s3))
 615                                 M_ADD_IMMS(GET_LOW_REG(d), s1, s3);
 616                         else {
 617                                 ICONST(REG_ITMP3, s3);
 618                                 M_ADD_S(GET_LOW_REG(d), s1, REG_ITMP3);
 619                         }
 620                         s3 = iptr->sx.val.l >> 32;
 621                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP2);
 622                         if (IS_IMM(s3))
 623                                 M_ADC_IMM(GET_HIGH_REG(d), s1, s3);
 624                         else {
 625                                 ICONST(REG_ITMP3, s3);
 626                                 M_ADC(GET_HIGH_REG(d), s1, REG_ITMP3);
 627                         }
 628                         emit_store_dst(jd, iptr, d);
 629                         break;
 630
 631                 case ICMD_ISUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 632
 633                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 634                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 635                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 636                         M_SUB(d, s1, s2);
 637                         emit_store_dst(jd, iptr, d);
 638                         break;
 639
 640                 case ICMD_LSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 641
 642                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 643                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 644                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 645                         M_SUB_S(GET_LOW_REG(d), s1, s2);
 646                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 647                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 648                         M_SBC(GET_HIGH_REG(d), s1, s2);
 649                         emit_store_dst(jd, iptr, d);
 650                         break;
 651
 652                 case ICMD_ISUBCONST:  /* ..., value  ==> ..., value + constant        */
 653                                       /* sx.val.i = constant                          */
 654
 655                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 656                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 657                         if (IS_IMM(iptr->sx.val.i))
 658                                 M_SUB_IMM(d, s1, iptr->sx.val.i);
 659                         else {
 660                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 661                                 M_SUB(d, s1, REG_ITMP3);
 662                         }
 663                         emit_store_dst(jd, iptr, d);
 664                         break;
 665
 666                 case ICMD_LSUBCONST:  /* ..., value  ==> ..., value - constant        */
 667                                       /* sx.val.l = constant                          */
 668
 669                         s3 = iptr->sx.val.l & 0xffffffff;
 670                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 671                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 672                         if (IS_IMM(s3))
 673                                 M_SUB_IMMS(GET_LOW_REG(d), s1, s3);
 674                         else {
 675                                 ICONST(REG_ITMP3, s3);
 676                                 M_SUB_S(GET_LOW_REG(d), s1, REG_ITMP3);
 677                         }
 678                         s3 = iptr->sx.val.l >> 32;
 679                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP2);
 680                         if (IS_IMM(s3))
 681                                 M_SBC_IMM(GET_HIGH_REG(d), s1, s3);
 682                         else {
 683                                 ICONST(REG_ITMP3, s3);
 684                                 M_SBC(GET_HIGH_REG(d), s1, REG_ITMP3);
 685                         }
 686                         emit_store_dst(jd, iptr, d);
 687                         break;
 688
 689                 case ICMD_IMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 690
 691                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 692                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 693                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 694                         M_MUL(d, s1, s2);
 695                         emit_store_dst(jd, iptr, d);
 696                         break;
 697
 698                 case ICMD_IDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 699                 case ICMD_IREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 700
 701                         s1 = emit_load_s1(jd, iptr, REG_A0);
 702                         s2 = emit_load_s2(jd, iptr, REG_A1);
 703                         emit_arithmetic_check(cd, iptr, s2);
 704
 705                         /* move arguments into argument registers */
 706                         M_INTMOVE(s1, REG_A0);
 707                         M_INTMOVE(s2, REG_A1);
 708
 709                         /* call builtin function */
 710                         bte = iptr->sx.s23.s3.bte;
 711                         disp = dseg_add_functionptr(cd, bte->fp);
 712                         M_DSEG_BRANCH(disp);
 713
 714                         /* recompute pv */
 715                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
 716                         M_RECOMPUTE_PV(s1);
 717
 718                         /* move result into destination register */
 719                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
 720                         M_INTMOVE(REG_RESULT, d);
 721                         emit_store_dst(jd, iptr, d);
 722                         break;
 723
 724                 case ICMD_LDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 725                 case ICMD_LREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 726
 727                         /* move arguments into argument registers */
 728
 729                         s1 = emit_load_s1(jd, iptr, REG_A0_A1_PACKED);
 730                         s2 = emit_load_s2(jd, iptr, REG_A2_A3_PACKED);
 731                         /* XXX TODO: only do this if arithmetic check is really done! */
 732                         M_ORR(GET_HIGH_REG(s2), GET_LOW_REG(s2), REG_ITMP3);
 733                         emit_arithmetic_check(cd, iptr, REG_ITMP3);
 734
 735                         M_LNGMOVE(s1, REG_A0_A1_PACKED);
 736                         M_LNGMOVE(s2, REG_A2_A3_PACKED);
 737
 738                         /* call builtin function */
 739                         bte = iptr->sx.s23.s3.bte;
 740                         disp = dseg_add_functionptr(cd, bte->fp);
 741                         M_DSEG_BRANCH(disp);
 742
 743                         /* recompute pv */
 744                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
 745                         M_RECOMPUTE_PV(s1);
 746
 747                         /* move result into destination register */
 748                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
 749                         M_LNGMOVE(REG_RESULT_PACKED, d);
 750                         emit_store_dst(jd, iptr, d);
 751                         break;
 752
 753                 case ICMD_IMULPOW2:   /* ..., value  ==> ..., value * (2 ^ constant)  */
 754                                       /* sx.val.i = constant                          */
 755
 756                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 757                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 758                         M_MOV(d, REG_LSL(s1, iptr->sx.val.i));
 759                         emit_store_dst(jd, iptr, d);
 760                         break;
 761
 762                 case ICMD_IDIVPOW2:   /* ..., value  ==> ..., value / (2 ^ constant)  */
 763                                       /* sx.val.i = constant                          */
 764
 765                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 766                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 767                         /* this rounds towards 0 as java likes it */
 768                         M_MOV(REG_ITMP3, REG_ASR(s1, 31));
 769                         M_ADD(REG_ITMP3, s1, REG_LSR(REG_ITMP3, 32 - iptr->sx.val.i));
 770                         M_MOV(d, REG_ASR(REG_ITMP3, iptr->sx.val.i));
 771                         /* this rounds towards nearest, not java style */
 772                         /*M_MOV_S(d, REG_ASR(s1, iptr->sx.val.i));
 773                         M_ADCMI_IMM(d, d, 0);*/
 774                         emit_store_dst(jd, iptr, d);
 775                         break;
 776
 777                 case ICMD_IREMPOW2:   /* ..., value  ==> ..., value % constant        */
 778                                       /* sx.val.i = constant [ (2 ^ x) - 1 ]          */
 779
 780                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 781                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 782                         M_MOV_S(REG_ITMP1, s1);
 783                         M_RSBMI_IMM(REG_ITMP1, REG_ITMP1, 0);
 784                         if (IS_IMM(iptr->sx.val.i))
 785                                 M_AND_IMM(REG_ITMP1, iptr->sx.val.i, d);
 786                         else {
 787                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 788                                 M_AND(REG_ITMP1, REG_ITMP3, d);
 789                         }
 790                         M_RSBMI_IMM(d, d, 0);
 791                         emit_store_dst(jd, iptr, d);
 792                         break;
 793
 794                 case ICMD_ISHL:       /* ..., val1, val2  ==> ..., val1 << val2       */
 795
 796                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 797                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 798                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 799                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 800                         M_MOV(d, REG_LSL_REG(s1, REG_ITMP2));
 801                         emit_store_dst(jd, iptr, d);
 802                         break;
 803
 804                 case ICMD_ISHR:       /* ..., val1, val2  ==> ..., val1 >> val2       */
 805
 806                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 807                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 808                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 809                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 810                         M_MOV(d, REG_ASR_REG(s1, REG_ITMP2));
 811                         emit_store_dst(jd, iptr, d);
 812                         break;
 813
 814                 case ICMD_IUSHR:      /* ..., val1, val2  ==> ..., val1 >>> val2      */
 815
 816                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 817                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 818                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 819                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 820                         M_MOV(d, REG_LSR_REG(s1, REG_ITMP2));
 821                         emit_store_dst(jd, iptr, d);
 822                         break;
 823
 824                 case ICMD_ISHLCONST:  /* ..., value  ==> ..., value << constant       */
 825                                       /* sx.val.i = constant                          */
 826
 827                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 828                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 829                         M_MOV(d, REG_LSL(s1, iptr->sx.val.i & 0x1f));
 830                         emit_store_dst(jd, iptr, d);
 831                         break;
 832
 833                 case ICMD_ISHRCONST:  /* ..., value  ==> ..., value >> constant       */
 834                                       /* sx.val.i = constant                          */
 835
 836                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 837                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 838                         /* we need to check for zero here because arm interprets it as SHR by 32 */
 839                         if ((iptr->sx.val.i & 0x1f) == 0) {
 840                                 M_INTMOVE(s1, d);
 841                         } else {
 842                                 M_MOV(d, REG_ASR(s1, iptr->sx.val.i & 0x1f));
 843                         }
 844                         emit_store_dst(jd, iptr, d);
 845                         break;
 846
 847                 case ICMD_IUSHRCONST: /* ..., value  ==> ..., value >>> constant      */
 848                                       /* sx.val.i = constant                          */
 849
 850                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 851                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 852                         /* we need to check for zero here because arm interprets it as SHR by 32 */
 853                         if ((iptr->sx.val.i & 0x1f) == 0)
 854                                 M_INTMOVE(s1, d);
 855                         else
 856                                 M_MOV(d, REG_LSR(s1, iptr->sx.val.i & 0x1f));
 857                         emit_store_dst(jd, iptr, d);
 858                         break;
 859
 860                 case ICMD_IAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 861
 862                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 863                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 864                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 865                         M_AND(s1, s2, d);
 866                         emit_store_dst(jd, iptr, d);
 867                         break;
 868
 869                 case ICMD_LAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 870
 871                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 872                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 873                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 874                         M_AND(s1, s2, GET_LOW_REG(d));
 875                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 876                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 877                         M_AND(s1, s2, GET_HIGH_REG(d));
 878                         emit_store_dst(jd, iptr, d);
 879                         break;
 880
 881                 case ICMD_IOR:        /* ..., val1, val2  ==> ..., val1 | val2        */
 882
 883                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 884                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 885                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 886                         M_ORR(s1, s2, d);
 887                         emit_store_dst(jd, iptr, d);
 888                         break;
 889
 890                 case ICMD_LOR:       /* ..., val1, val2  ==> ..., val1 | val2        */
 891
 892                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 893                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 894                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 895                         M_ORR(s1, s2, GET_LOW_REG(d));
 896                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 897                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 898                         M_ORR(s1, s2, GET_HIGH_REG(d));
 899                         emit_store_dst(jd, iptr, d);
 900                         break;
 901
 902                 case ICMD_IXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
 903
 904                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 905                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 906                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 907                         M_EOR(s1, s2, d);
 908                         emit_store_dst(jd, iptr, d);
 909                         break;
 910
 911                 case ICMD_LXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
 912
 913                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 914                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 915                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 916                         M_EOR(s1, s2, GET_LOW_REG(d));
 917                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 918                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 919                         M_EOR(s1, s2, GET_HIGH_REG(d));
 920                         emit_store_dst(jd, iptr, d);
 921                         break;
 922
 923
 924         /* floating operations ************************************************/
 925
 926 #if !defined(ENABLE_SOFTFLOAT)
 927
 928                 case ICMD_FNEG:       /* ..., value  ==> ..., - value                 */
 929
 930                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 931                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 932                         M_FNEG(s1, d);
 933                         emit_store_dst(jd, iptr, d);
 934                         break;
 935
 936                 case ICMD_FADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 937
 938                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 939                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 940                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 941                         M_FADD(s1, s2, d);
 942                         emit_store_dst(jd, iptr, d);
 943                         break;
 944
 945                 case ICMD_FSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 946
 947                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 948                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 949                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 950                         M_FSUB(s1, s2, d);
 951                         emit_store_dst(jd, iptr, d);
 952                         break;
 953
 954                 case ICMD_FMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 955
 956                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 957                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 958                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 959                         M_FMUL(s1, s2, d);
 960                         emit_store_dst(jd, iptr, d);
 961                         break;
 962
 963                 case ICMD_FDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 964                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 965                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 966                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 967                         M_FDIV(s1, s2, d);
 968                         emit_store_dst(jd, iptr, d);
 969                         break;
 970
 971                 /* ATTENTION: Jave does not want IEEE behaviour in FREM, do
 972                    not use this */
 973
 974 #if 0
 975                 case ICMD_FREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 976
 977                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 978                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 979                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 980                         M_RMFS(d, s1, s2);
 981                         emit_store_dst(jd, iptr, d);
 982                         break;
 983 #endif
 984
 985                 case ICMD_DNEG:       /* ..., value  ==> ..., - value                 */
 986
 987                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 988                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 989                         M_DNEG(s1, d);
 990                         emit_store_dst(jd, iptr, d);
 991                         break;
 992
 993                 case ICMD_DADD:       /* ..., 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_DADD(s1, s2, d);
 999                         emit_store_dst(jd, iptr, d);
1000                         break;
1001
1002                 case ICMD_DSUB:       /* ..., 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_DSUB(s1, s2, d);
1008                         emit_store_dst(jd, iptr, d);
1009                         break;
1010
1011                 case ICMD_DMUL:       /* ..., 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_DMUL(s1, s2, d);
1017                         emit_store_dst(jd, iptr, d);
1018                         break;
1019
1020                 case ICMD_DDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1021
1022                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1023                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1024                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1025                         M_DDIV(s1, s2, d);
1026                         emit_store_dst(jd, iptr, d);
1027                         break;
1028
1029                 /* ATTENTION: Jave does not want IEEE behaviour in DREM, do
1030                    not use this */
1031
1032 #if 0
1033                 case ICMD_DREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
1034
1035                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1036                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1037                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1038                         M_RMFD(d, s1, s2);
1039                         emit_store_dst(jd, iptr, d);
1040                         break;
1041 #endif
1042
1043                 case ICMD_I2F:       /* ..., value  ==> ..., (float) value            */
1044
1045                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1046                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1047                         M_CVTIF(s1, d);
1048                         emit_store_dst(jd, iptr, d);
1049                         break;
1050
1051                 case ICMD_I2D:       /* ..., value  ==> ..., (double) value           */
1052
1053                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1054                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1055                         M_CVTID(s1, d);
1056                         emit_store_dst(jd, iptr, d);
1057                         break;
1058
1059                 case ICMD_F2I:       /* ..., value  ==> ..., (int) value              */
1060
1061                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1062                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1063                         /* this uses round towards zero, as Java likes it */
1064                         M_CVTFI(s1, d);
1065 #if !defined(__VFP_FP__)
1066                         /* this checks for NaN; to return zero as Java likes it */
1067                         M_FCMP(s1, 0x8);
1068                         M_MOVVS_IMM(0, d);
1069 #endif
1070                         emit_store_dst(jd, iptr, d);
1071                         break;
1072
1073                 case ICMD_D2I:       /* ..., value  ==> ..., (int) value              */
1074
1075                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1076                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1077                         /* this uses round towards zero, as Java likes it */
1078                         M_CVTDI(s1, d);
1079 #if !defined(__VFP_FP__)
1080                         /* this checks for NaN; to return zero as Java likes it */
1081                         M_DCMP(s1, 0x8);
1082                         M_MOVVS_IMM(0, d);
1083 #endif
1084                         emit_store_dst(jd, iptr, d);
1085                         break;
1086
1087                 case ICMD_D2F:       /* ..., value  ==> ..., (float) value            */
1088
1089                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1090                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1091                         M_CVTDF(s1, d);
1092                         emit_store_dst(jd, iptr, d);
1093                         break;
1094
1095                 case ICMD_F2D:       /* ..., value  ==> ..., (double) value           */
1096
1097                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1098                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1099                         M_CVTFD(s1, d);
1100                         emit_store_dst(jd, iptr, d);
1101                         break;
1102
1103                 case ICMD_FCMPG:      /* ..., val1, val2  ==> ..., val1 fcmpg val2    */
1104
1105                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1106                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1107                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1108                         M_FCMP(s2, s1);
1109                         M_MOV_IMM(d, 0);
1110 #if defined(__VFP_FP__)
1111                         M_FMSTAT; /* on VFP we need to transfer the flags */
1112 #endif
1113                         M_SUBGT_IMM(d, d, 1);
1114                         M_ADDLT_IMM(d, d, 1);
1115                         emit_store_dst(jd, iptr, d);
1116                         break;
1117
1118                 case ICMD_DCMPG:      /* ..., val1, val2  ==> ..., val1 dcmpg val2    */
1119
1120                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1121                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1122                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1123                         M_DCMP(s2, s1);
1124                         M_MOV_IMM(d, 0);
1125 #if defined(__VFP_FP__)
1126                         M_FMSTAT; /* on VFP we need to transfer the flags */
1127 #endif
1128                         M_SUBGT_IMM(d, d, 1);
1129                         M_ADDLT_IMM(d, d, 1);
1130                         emit_store_dst(jd, iptr, d);
1131                         break;
1132
1133                 case ICMD_FCMPL:      /* ..., val1, val2  ==> ..., val1 fcmpl val2    */
1134
1135                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1136                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1137                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1138                         M_FCMP(s1, s2);
1139                         M_MOV_IMM(d, 0);
1140 #if defined(__VFP_FP__)
1141                         M_FMSTAT; /* on VFP we need to transfer the flags */
1142 #endif
1143                         M_SUBLT_IMM(d, d, 1);
1144                         M_ADDGT_IMM(d, d, 1);
1145                         emit_store_dst(jd, iptr, d);
1146                         break;
1147
1148                 case ICMD_DCMPL:      /* ..., val1, val2  ==> ..., val1 dcmpl val2    */
1149
1150                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1151                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1152                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1153                         M_DCMP(s1, s2);
1154                         M_MOV_IMM(d, 0);
1155 #if defined(__VFP_FP__)
1156                         M_FMSTAT; /* on VFP we need to transfer the flags */
1157 #endif
1158                         M_SUBLT_IMM(d, d, 1);
1159                         M_ADDGT_IMM(d, d, 1);
1160                         emit_store_dst(jd, iptr, d);
1161                         break;
1162
1163 #endif /* !defined(ENABLE_SOFTFLOAT) */
1164
1165
1166                 /* memory operations **************************************************/
1167
1168                 case ICMD_ARRAYLENGTH: /* ..., arrayref  ==> ..., length              */
1169
1170                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1171                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1172                         /* implicit null-pointer check */
1173                         M_ILD_INTERN(d, s1, OFFSET(java_array_t, size));
1174                         emit_store_dst(jd, iptr, d);
1175                         break;
1176
1177                 case ICMD_BALOAD:     /* ..., arrayref, index  ==> ..., value         */
1178
1179                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1180                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1181                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1182                         /* implicit null-pointer check */
1183                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1184                         M_ADD(REG_ITMP1, s1, s2); /* REG_ITMP1 = s1 + 1 * s2 */
1185                         M_LDRSB(d, REG_ITMP1, OFFSET(java_bytearray_t, data[0]));
1186                         emit_store_dst(jd, iptr, d);
1187                         break;
1188
1189                 case ICMD_CALOAD:     /* ..., arrayref, index  ==> ..., value         */
1190
1191                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1192                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1193                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1194                         /* implicit null-pointer check */
1195                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1196                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1197                         M_LDRH(d, REG_ITMP1, OFFSET(java_chararray_t, data[0]));
1198                         emit_store_dst(jd, iptr, d);
1199                         break;
1200
1201                 case ICMD_SALOAD:     /* ..., arrayref, index  ==> ..., value         */
1202
1203                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1204                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1205                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1206                         /* implicit null-pointer check */
1207                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1208                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1209                         M_LDRSH(d, REG_ITMP1, OFFSET(java_shortarray_t, data[0]));
1210                         emit_store_dst(jd, iptr, d);
1211                         break;
1212
1213                 case ICMD_IALOAD:     /* ..., arrayref, index  ==> ..., value         */
1214
1215                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1216                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1217                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1218                         /* implicit null-pointer check */
1219                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1220                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1221                         M_ILD_INTERN(d, REG_ITMP1, OFFSET(java_intarray_t, data[0]));
1222                         emit_store_dst(jd, iptr, d);
1223                         break;
1224
1225                 case ICMD_LALOAD:     /* ..., arrayref, index  ==> ..., value         */
1226
1227                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1228                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1229                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1230                         /* implicit null-pointer check */
1231                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1232                         M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1233                         M_LLD_INTERN(d, REG_ITMP3, OFFSET(java_longarray_t, data[0]));
1234                         emit_store_dst(jd, iptr, d);
1235                         break;
1236
1237                 case ICMD_FALOAD:     /* ..., arrayref, index  ==> ..., value         */
1238
1239                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1240                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1241                         /* implicit null-pointer check */
1242                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1243                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1244 #if !defined(ENABLE_SOFTFLOAT)
1245                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1246                         M_FLD_INTERN(d, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1247 #else
1248                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1249                         M_ILD_INTERN(d, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1250 #endif
1251                         emit_store_dst(jd, iptr, d);
1252                         break;
1253
1254                 case ICMD_DALOAD:     /* ..., arrayref, index  ==> ..., value         */
1255
1256                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1257                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1258                         /* implicit null-pointer check */
1259                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1260                         M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1261 #if !defined(ENABLE_SOFTFLOAT)
1262                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1263                         M_DLD_INTERN(d, REG_ITMP3, OFFSET(java_doublearray_t, data[0]));
1264 #else
1265                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1266                         M_LLD_INTERN(d, REG_ITMP3, OFFSET(java_doublearray_t, data[0]));
1267 #endif
1268                         emit_store_dst(jd, iptr, d);
1269                         break;
1270
1271                 case ICMD_AALOAD:     /* ..., arrayref, index  ==> ..., value         */
1272
1273                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1274                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1275                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1276                         /* implicit null-pointer check */
1277                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1278                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1279                         M_LDR_INTERN(d, REG_ITMP1, OFFSET(java_objectarray_t, data[0]));
1280                         emit_store_dst(jd, iptr, d);
1281                         break;
1282
1283                 case ICMD_BASTORE:    /* ..., arrayref, index, value  ==> ...         */
1284
1285                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1286                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1287                         /* implicit null-pointer check */
1288                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1289                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1290                         M_ADD(REG_ITMP1, s1, s2); /* REG_ITMP1 = s1 + 1 * s2 */
1291                         M_STRB(s3, REG_ITMP1, OFFSET(java_bytearray_t, data[0]));
1292                         break;
1293
1294                 case ICMD_CASTORE:    /* ..., arrayref, index, value  ==> ...         */
1295
1296                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1297                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1298                         /* implicit null-pointer check */
1299                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1300                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1301                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1302                         M_STRH(s3, REG_ITMP1, OFFSET(java_chararray_t, data[0]));
1303                         break;
1304
1305                 case ICMD_SASTORE:    /* ..., arrayref, index, value  ==> ...         */
1306
1307                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1308                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1309                         /* implicit null-pointer check */
1310                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1311                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1312                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1313                         M_STRH(s3, REG_ITMP1, OFFSET(java_shortarray_t, data[0]));
1314                         break;
1315
1316                 case ICMD_IASTORE:    /* ..., arrayref, index, value  ==> ...         */
1317
1318                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1319                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1320                         /* implicit null-pointer check */
1321                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1322                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1323                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1324                         M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_intarray_t, data[0]));
1325                         break;
1326
1327                 case ICMD_LASTORE:    /* ..., 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_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1334                         s3 = emit_load_s3(jd, iptr, REG_ITMP12_PACKED);
1335                         M_LST_INTERN(s3, REG_ITMP3, OFFSET(java_longarray_t, data[0]));
1336                         break;
1337
1338                 case ICMD_FASTORE:    /* ..., arrayref, index, value  ==> ...         */
1339
1340                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1341                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1342                         /* implicit null-pointer check */
1343                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1344                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1345 #if !defined(ENABLE_SOFTFLOAT)
1346                         s3 = emit_load_s3(jd, iptr, REG_FTMP1);
1347                         M_FST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1348 #else
1349                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1350                         M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1351 #endif
1352                         break;
1353
1354                 case ICMD_DASTORE:    /* ..., arrayref, index, value  ==> ...         */
1355
1356                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1357                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1358                         /* implicit null-pointer check */
1359                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1360                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 3)); /* REG_ITMP1 = s1 + 8 * s2 */
1361 #if !defined(ENABLE_SOFTFLOAT)
1362                         s3 = emit_load_s3(jd, iptr, REG_FTMP1);
1363                         M_DST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray_t, data[0]));
1364 #else
1365                         s3 = emit_load_s3(jd, iptr, REG_ITMP23_PACKED);
1366                         M_LST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray_t, data[0]));
1367 #endif
1368                         break;
1369
1370                 case ICMD_AASTORE:    /* ..., arrayref, index, value  ==> ...         */
1371
1372                         s1 = emit_load_s1(jd, iptr, REG_A0);
1373                         s2 = emit_load_s2(jd, iptr, REG_ITMP1);
1374                         s3 = emit_load_s3(jd, iptr, REG_A1);
1375
1376                         /* implicit null-pointer check */
1377                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1378
1379                         /* move arguments to argument registers */
1380                         M_INTMOVE(s1, REG_A0);
1381                         M_INTMOVE(s3, REG_A1);
1382
1383                         /* call builtin function */
1384                         disp = dseg_add_functionptr(cd, BUILTIN_FAST_canstore);
1385                         M_DSEG_BRANCH(disp);
1386
1387                         /* recompute pv */
1388                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
1389                         M_RECOMPUTE_PV(s1);
1390
1391                         /* check resturn value of builtin */
1392                         emit_arraystore_check(cd, iptr);
1393
1394                         /* finally store address into array */
1395                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1396                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1397                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1398                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1399                         M_STR_INTERN(s3, REG_ITMP1, OFFSET(java_objectarray_t, data[0]));
1400                         break;
1401
1402                 case ICMD_GETSTATIC:  /* ...  ==> ..., value                          */
1403
1404                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1405                                 uf        = iptr->sx.s23.s3.uf;
1406                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1407                                 disp      = dseg_add_unique_address(cd, NULL);
1408
1409                                 patcher_add_patch_ref(jd, PATCHER_get_putstatic, uf, disp);
1410                         }
1411                         else {
1412                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1413                                 fieldtype = fi->type;
1414                                 disp      = dseg_add_address(cd, fi->value);
1415
1416                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1417                                         patcher_add_patch_ref(jd, PATCHER_initialize_class,
1418                                                             fi->class, 0);
1419                                 }
1420                         }
1421
1422                         M_DSEG_LOAD(REG_ITMP3, disp);
1423                         switch (fieldtype) {
1424                         case TYPE_INT:
1425 #if defined(ENABLE_SOFTFLOAT)
1426                         case TYPE_FLT:
1427 #endif
1428                         case TYPE_ADR:
1429                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1430                                 M_ILD_INTERN(d, REG_ITMP3, 0);
1431                                 break;
1432                         case TYPE_LNG:
1433 #if defined(ENABLE_SOFTFLOAT)
1434                         case TYPE_DBL:
1435 #endif
1436                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1437                                 M_LLD_INTERN(d, REG_ITMP3, 0);
1438                                 break;
1439 #if !defined(ENABLE_SOFTFLOAT)
1440                         case TYPE_FLT:
1441                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1442                                 M_FLD_INTERN(d, REG_ITMP3, 0);
1443                                 break;
1444                         case TYPE_DBL:
1445                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1446                                 M_DLD_INTERN(d, REG_ITMP3, 0);
1447                                 break;
1448 #endif
1449                         default:
1450                                 assert(0);
1451                         }
1452                         emit_store_dst(jd, iptr, d);
1453                         break;
1454
1455                 case ICMD_PUTSTATIC:  /* ..., value  ==> ...                          */
1456
1457                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1458                                 uf        = iptr->sx.s23.s3.uf;
1459                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1460                                 disp      = dseg_add_unique_address(cd, NULL);
1461
1462                                 patcher_add_patch_ref(jd, PATCHER_get_putstatic, uf, disp);
1463                         }
1464                         else {
1465                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1466                                 fieldtype = fi->type;
1467                                 disp      = dseg_add_address(cd, fi->value);
1468
1469                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1470                                         patcher_add_patch_ref(jd, PATCHER_initialize_class,
1471                                                             fi->class, 0);
1472                                 }
1473                         }
1474
1475                         M_DSEG_LOAD(REG_ITMP3, disp);
1476                         switch (fieldtype) {
1477                         case TYPE_INT:
1478 #if defined(ENABLE_SOFTFLOAT)
1479                         case TYPE_FLT:
1480 #endif
1481                         case TYPE_ADR:
1482                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1483                                 M_IST_INTERN(s1, REG_ITMP3, 0);
1484                                 break;
1485                         case TYPE_LNG:
1486 #if defined(ENABLE_SOFTFLOAT)
1487                         case TYPE_DBL:
1488 #endif
1489                                 s1 = emit_load_s1(jd, iptr, REG_ITMP12_PACKED);
1490                                 M_LST_INTERN(s1, REG_ITMP3, 0);
1491                                 break;
1492 #if !defined(ENABLE_SOFTFLOAT)
1493                         case TYPE_FLT:
1494                                 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1495                                 M_FST_INTERN(s1, REG_ITMP3, 0);
1496                                 break;
1497                         case TYPE_DBL:
1498                                 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1499                                 M_DST_INTERN(s1, REG_ITMP3, 0);
1500                                 break;
1501 #endif
1502                         default:
1503                                 assert(0);
1504                         }
1505                         break;
1506
1507                 case ICMD_GETFIELD:   /* ..., objectref, value  ==> ...               */
1508
1509                         s1 = emit_load_s1(jd, iptr, REG_ITMP3);
1510                         emit_nullpointer_check(cd, iptr, s1);
1511
1512
1513                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1514                                 uf        = iptr->sx.s23.s3.uf;
1515                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1516                                 disp      = 0;
1517                         }
1518                         else {
1519                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1520                                 fieldtype = fi->type;
1521                                 disp      = fi->offset;
1522                         }
1523
1524 #if !defined(ENABLE_SOFTFLOAT)
1525                         /* HACK: softnull checks on floats */
1526                         if (!INSTRUCTION_MUST_CHECK(iptr) && IS_FLT_DBL_TYPE(fieldtype))
1527                                 emit_nullpointer_check_force(cd, iptr, s1);
1528 #endif
1529
1530                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1531                                 /* XXX REMOVE ME */
1532                                 uf = iptr->sx.s23.s3.uf;
1533
1534                                 patcher_add_patch_ref(jd, PATCHER_get_putfield, uf, 0);
1535                         }
1536
1537                         switch (fieldtype) {
1538                         case TYPE_INT:
1539 #if defined(ENABLE_SOFTFLOAT)
1540                         case TYPE_FLT:
1541 #endif
1542                         case TYPE_ADR:
1543                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1544                                 M_ILD(d, s1, disp);
1545                                 break;
1546                         case TYPE_LNG:
1547 #if defined(ENABLE_SOFTFLOAT)
1548                         case TYPE_DBL:
1549 #endif
1550                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1551                                 M_LLD(d, s1, disp);
1552                                 break;
1553 #if !defined(ENABLE_SOFTFLOAT)
1554                         case TYPE_FLT:
1555                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1556                                 M_FLD(d, s1, disp);
1557                                 break;
1558                         case TYPE_DBL:
1559                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1560                                 M_DLD(d, s1, disp);
1561                                 break;
1562 #endif
1563                         default:
1564                                 assert(0);
1565                         }
1566                         emit_store_dst(jd, iptr, d);
1567                         break;
1568
1569                 case ICMD_PUTFIELD:   /* ..., objectref, value  ==> ...               */
1570
1571                         s1 = emit_load_s1(jd, iptr, REG_ITMP3);
1572                         emit_nullpointer_check(cd, iptr, s1);
1573
1574                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1575                                 uf        = iptr->sx.s23.s3.uf;
1576                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1577                                 disp      = 0;
1578                         }
1579                         else {
1580                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1581                                 fieldtype = fi->type;
1582                                 disp      = fi->offset;
1583                         }
1584
1585 #if !defined(ENABLE_SOFTFLOAT)
1586                         /* HACK: softnull checks on floats */
1587                         if (!INSTRUCTION_MUST_CHECK(iptr) && IS_FLT_DBL_TYPE(fieldtype))
1588                                 emit_nullpointer_check_force(cd, iptr, s1);
1589 #endif
1590
1591                         switch (fieldtype) {
1592                         case TYPE_INT:
1593 #if defined(ENABLE_SOFTFLOAT)
1594                         case TYPE_FLT:
1595 #endif
1596                         case TYPE_ADR:
1597                                 s2 = emit_load_s2(jd, iptr, REG_ITMP1);
1598                                 break;
1599 #if defined(ENABLE_SOFTFLOAT)
1600                         case TYPE_DBL: /* fall through */
1601 #endif
1602                         case TYPE_LNG:
1603                                 s2 = emit_load_s2(jd, iptr, REG_ITMP12_PACKED);
1604                                 break;
1605 #if !defined(ENABLE_SOFTFLOAT)
1606                         case TYPE_FLT:
1607                         case TYPE_DBL:
1608                                 s2 = emit_load_s2(jd, iptr, REG_FTMP1);
1609                                 break;
1610 #endif
1611                         default:
1612                                 assert(0);
1613                         }
1614
1615                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1616                                 /* XXX REMOVE ME */
1617                                 uf = iptr->sx.s23.s3.uf;
1618
1619                                 patcher_add_patch_ref(jd, PATCHER_get_putfield, uf, 0);
1620                         }
1621
1622                         switch (fieldtype) {
1623                         case TYPE_INT:
1624 #if defined(ENABLE_SOFTFLOAT)
1625                         case TYPE_FLT:
1626 #endif
1627                         case TYPE_ADR:
1628                                 M_IST(s2, s1, disp);
1629                                 break;
1630                         case TYPE_LNG:
1631 #if defined(ENABLE_SOFTFLOAT)
1632                         case TYPE_DBL:
1633 #endif
1634                                 M_LST(s2, s1, disp);
1635                                 break;
1636 #if !defined(ENABLE_SOFTFLOAT)
1637                         case TYPE_FLT:
1638                                 M_FST(s2, s1, disp);
1639                                 break;
1640                         case TYPE_DBL:
1641                                 M_DST(s2, s1, disp);
1642                                 break;
1643 #endif
1644                         default:
1645                                 assert(0);
1646                         }
1647                         break;
1648
1649
1650                 /* branch operations **************************************************/
1651
1652                 case ICMD_ATHROW:       /* ..., objectref ==> ... (, objectref)       */
1653
1654                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1655                         M_INTMOVE(s1, REG_ITMP1_XPTR);
1656                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1657                                 patcher_add_patch_ref(jd, PATCHER_resolve_class,
1658                                                                         iptr->sx.s23.s2.uc, 0);
1659                         }
1660                         disp = dseg_add_functionptr(cd, asm_handle_exception);
1661                         M_DSEG_LOAD(REG_ITMP3, disp);
1662                         M_MOV(REG_ITMP2_XPC, REG_PC);
1663                         M_MOV(REG_PC, REG_ITMP3);
1664                         M_NOP;              /* nop ensures that XPC is less than the end  */
1665                                             /* of basic block                             */
1666                         break;
1667
1668                 case ICMD_GOTO:         /* ... ==> ...                                */
1669                 case ICMD_RET:
1670
1671                         emit_br(cd, iptr->dst.block);
1672                         break;
1673
1674                 case ICMD_JSR:          /* ... ==> ...                                */
1675
1676                         emit_br(cd, iptr->sx.s23.s3.jsrtarget.block);
1677                         break;
1678
1679                 case ICMD_IFNULL:       /* ..., value ==> ...                         */
1680                 case ICMD_IFNONNULL:
1681
1682                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1683                         M_TEQ_IMM(s1, 0);
1684                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFNULL, BRANCH_OPT_NONE);
1685                         break;
1686
1687                 case ICMD_IFLT:         /* ..., value ==> ...                         */
1688                 case ICMD_IFLE:         /* op1 = target JavaVM pc, val.i = constant   */
1689                 case ICMD_IFGT:
1690                 case ICMD_IFGE:
1691                 case ICMD_IFEQ:
1692                 case ICMD_IFNE:
1693
1694                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1695                         M_COMPARE(s1, iptr->sx.val.i);
1696                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFEQ, BRANCH_OPT_NONE);
1697                         break;
1698
1699                 case ICMD_IF_LEQ:       /* ..., value ==> ...                         */
1700
1701                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1702                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1703                         if (iptr->sx.val.l == 0) {
1704                                 M_ORR_S(s1, s2, REG_ITMP3);
1705                         }
1706                         else {
1707                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1708                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1709                                 M_CMP(s1, REG_ITMP3);*/
1710                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1711                                 M_CMPEQ(s2, REG_ITMP3);
1712                         }
1713                         emit_beq(cd, iptr->dst.block);
1714                         break;
1715
1716                 case ICMD_IF_LLT:       /* ..., value ==> ...                         */
1717
1718                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1719                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1720                         if (iptr->sx.val.l == 0) {
1721                                 /* if high word is less than zero, the whole long is too */
1722                                 M_CMP_IMM(s1, 0);
1723                                 emit_blt(cd, iptr->dst.block);
1724                         }
1725                         else {
1726                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1727                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1728                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1729                                 M_CMP(s1, REG_ITMP3);*/
1730                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1731                                 M_MOVGT_IMM(2, REG_ITMP1);
1732                                 M_MOVEQ_IMM(1, REG_ITMP1);
1733
1734                                 /* low compare: x=x-1(ifLO) */
1735                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1736                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1737                                 M_CMP(s2, REG_ITMP3);*/
1738                                 M_SUBLO_IMM(REG_ITMP1, REG_ITMP1, 1);
1739
1740                                 /* branch if (x LT 1) */
1741                                 M_CMP_IMM(REG_ITMP1, 1);
1742                                 emit_blt(cd, iptr->dst.block);
1743                         }
1744                         break;
1745
1746                 case ICMD_IF_LLE:       /* ..., value ==> ...                         */
1747
1748                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1749                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1750                         if (iptr->sx.val.l == 0) {
1751                                 /* if high word is less than zero, the whole long is too  */
1752                                 M_CMP_IMM(s1, 0);
1753                                 emit_blt(cd, iptr->dst.block);
1754
1755                                 /* ... otherwise the low word has to be zero (tricky!) */
1756                                 M_CMPEQ_IMM(s2, 0);
1757                                 emit_beq(cd, iptr->dst.block);
1758                         }
1759                         else {
1760                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1761                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1762                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1763                                 M_CMP(s1, REG_ITMP3);*/
1764                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1765                                 M_MOVGT_IMM(2, REG_ITMP1);
1766                                 M_MOVEQ_IMM(1, REG_ITMP1);
1767
1768                                 /* low compare: x=x+1(ifHI) */
1769                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1770                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1771                                 M_CMP(s2, REG_ITMP3);*/
1772                                 M_ADDHI_IMM(REG_ITMP1, REG_ITMP1, 1);
1773
1774                                 /* branch if (x LE 1) */
1775                                 M_CMP_IMM(REG_ITMP1, 1);
1776                                 emit_ble(cd, iptr->dst.block);
1777                         }
1778                         break;
1779
1780                 case ICMD_IF_LGE:       /* ..., value ==> ...                         */
1781
1782                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1783                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1784                         if (iptr->sx.val.l == 0) {
1785                                 /* if high word is greater or equal zero, the whole long is too */
1786                                 M_CMP_IMM(s1, 0);
1787                                 emit_bge(cd, iptr->dst.block);
1788                         }
1789                         else {
1790                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1791                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1792                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1793                                 M_CMP(s1, REG_ITMP3);*/
1794                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1795                                 M_MOVGT_IMM(2, REG_ITMP1);
1796                                 M_MOVEQ_IMM(1, REG_ITMP1);
1797
1798                                 /* low compare: x=x-1(ifLO) */
1799                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1800                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1801                                 M_CMP(s2, REG_ITMP3);*/
1802                                 M_SUBLO_IMM(REG_ITMP1, REG_ITMP1, 1);
1803
1804                                 /* branch if (x GE 1) */
1805                                 M_CMP_IMM(REG_ITMP1, 1);
1806                                 emit_bge(cd, iptr->dst.block);
1807                         }
1808                         break;
1809
1810                 case ICMD_IF_LGT:       /* ..., value ==> ...                         */
1811
1812                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1813                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1814 #if 0
1815                         if (iptr->sx.val.l == 0) {
1816                                 /* if high word is greater than zero, the whole long is too */
1817                                 M_CMP_IMM(s1, 0);
1818                                 M_BGT(0);
1819                                 codegen_add_branch_ref(cd, iptr->dst.block);
1820
1821                                 /* ... or high was zero and low is non zero (tricky!) */
1822                                 M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1823                                 M_MOVLT_IMM(1, REG_ITMP3);
1824                                 M_ORR_S(REG_ITMP3, s2, REG_ITMP3);
1825                                 M_BNE(0);
1826                                 codegen_add_branch_ref(cd, iptr->dst.block);
1827                         }
1828                         else {
1829 #endif
1830                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1831                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1832                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1833                                 M_CMP(s1, REG_ITMP3);*/
1834                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1835                                 M_MOVGT_IMM(2, REG_ITMP1);
1836                                 M_MOVEQ_IMM(1, REG_ITMP1);
1837
1838                                 /* low compare: x=x+1(ifHI) */
1839                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1840                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1841                                 M_CMP(s2, REG_ITMP3);*/
1842                                 M_ADDHI_IMM(REG_ITMP1, REG_ITMP1, 1);
1843
1844                                 /* branch if (x GT 1) */
1845                                 M_CMP_IMM(REG_ITMP1, 1);
1846                                 emit_bgt(cd, iptr->dst.block);
1847 #if 0
1848                         }
1849 #endif
1850                         break;
1851
1852                 case ICMD_IF_LNE:       /* ..., value ==> ...                         */
1853
1854                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1855                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1856                         if (iptr->sx.val.l == 0) {
1857                                 M_ORR_S(s1, s2, REG_ITMP3);
1858                         }
1859                         else {
1860                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1861                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1862                                 M_CMP(s1, REG_ITMP3);*/
1863                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1864                                 M_CMPEQ(s2, REG_ITMP3);
1865                         }
1866                         emit_bne(cd, iptr->dst.block);
1867                         break;
1868
1869                 case ICMD_IF_ICMPEQ:    /* ..., value, value ==> ...                  */
1870                 case ICMD_IF_ICMPNE:
1871                 case ICMD_IF_ICMPLT:
1872                 case ICMD_IF_ICMPLE:
1873                 case ICMD_IF_ICMPGT:
1874                 case ICMD_IF_ICMPGE:
1875
1876                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1877                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1878                         M_CMP(s1, s2);
1879                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IF_ICMPEQ, BRANCH_OPT_NONE);
1880                         break;
1881
1882                 case ICMD_IF_ACMPEQ:    /* ..., value, value ==> ...                  */
1883                 case ICMD_IF_ACMPNE:
1884
1885                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1886                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1887                         M_CMP(s1, s2);
1888                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IF_ACMPEQ, BRANCH_OPT_NONE);
1889                         break;
1890
1891                 case ICMD_IF_LCMPEQ:    /* ..., value, value ==> ...                  */
1892                                         /* op1 = target JavaVM pc                     */
1893
1894                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1895                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1896                         M_CMP(s1, s2);
1897
1898                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1899                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1900                         M_CMPEQ(s1, s2);
1901
1902                         emit_beq(cd, iptr->dst.block);
1903                         break;
1904
1905                 case ICMD_IF_LCMPNE:    /* ..., value, value ==> ...                  */
1906                                         /* op1 = target JavaVM pc                     */
1907
1908                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1909                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1910                         M_CMP(s1, s2);
1911
1912                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1913                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1914                         M_CMPEQ(s1, s2);
1915
1916                         emit_bne(cd, iptr->dst.block);
1917                         break;
1918
1919                 case ICMD_IF_LCMPLT:    /* ..., value, value ==> ...                  */
1920                                         /* op1 = target JavaVM pc                     */
1921
1922                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1923                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1924                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1925                         M_CMP(s1, s2);
1926                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1927                         M_MOVGT_IMM(2, REG_ITMP3);
1928                         M_MOVEQ_IMM(1, REG_ITMP3);
1929
1930                         /* low compare: x=x-1(ifLO) */
1931                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1932                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1933                         M_CMP(s1, s2);
1934                         M_SUBLO_IMM(REG_ITMP3, REG_ITMP3, 1);
1935
1936                         /* branch if (x LT 1) */
1937                         M_CMP_IMM(REG_ITMP3, 1);
1938                         emit_blt(cd, iptr->dst.block);
1939                         break;
1940
1941                 case ICMD_IF_LCMPLE:    /* ..., value, value ==> ...                  */
1942                                         /* op1 = target JavaVM pc                     */
1943
1944                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1945                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1946                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1947                         M_CMP(s1, s2);
1948                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1949                         M_MOVGT_IMM(2, REG_ITMP3);
1950                         M_MOVEQ_IMM(1, REG_ITMP3);
1951
1952                         /* low compare: x=x-1(ifLO) */
1953                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1954                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1955                         M_CMP(s1, s2);
1956                         M_ADDHI_IMM(REG_ITMP3, REG_ITMP3, 1);
1957
1958                         /* branch if (x LE 1) */
1959                         M_CMP_IMM(REG_ITMP3, 1);
1960                         emit_ble(cd, iptr->dst.block);
1961                         break;
1962
1963                 case ICMD_IF_LCMPGT:    /* ..., value, value ==> ...                  */
1964                                         /* op1 = target JavaVM pc                     */
1965
1966                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1967                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1968                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1969                         M_CMP(s1, s2);
1970                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1971                         M_MOVGT_IMM(2, REG_ITMP3);
1972                         M_MOVEQ_IMM(1, REG_ITMP3);
1973
1974                         /* low compare: x=x-1(ifLO) */
1975                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1976                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1977                         M_CMP(s1, s2);
1978                         M_ADDHI_IMM(REG_ITMP3, REG_ITMP3, 1);
1979
1980                         /* branch if (x GT 1) */
1981                         M_CMP_IMM(REG_ITMP3, 1);
1982                         emit_bgt(cd, iptr->dst.block);
1983                         break;
1984
1985                 case ICMD_IF_LCMPGE:    /* ..., value, value ==> ...                  */
1986                                         /* op1 = target JavaVM pc                     */
1987
1988                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1989                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1990                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1991                         M_CMP(s1, s2);
1992                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1993                         M_MOVGT_IMM(2, REG_ITMP3);
1994                         M_MOVEQ_IMM(1, REG_ITMP3);
1995
1996                         /* low compare: x=x-1(ifLO) */
1997                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1998                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1999                         M_CMP(s1, s2);
2000                         M_SUBLO_IMM(REG_ITMP3, REG_ITMP3, 1);
2001
2002                         /* branch if (x GE 1) */
2003                         M_CMP_IMM(REG_ITMP3, 1);
2004                         emit_bge(cd, iptr->dst.block);
2005                         break;
2006
2007                 case ICMD_TABLESWITCH:  /* ..., index ==> ...                         */
2008                         {
2009                         s4 i, l;
2010                         branch_target_t *table;
2011
2012                         table = iptr->dst.table;
2013
2014                         l = iptr->sx.s23.s2.tablelow;
2015                         i = iptr->sx.s23.s3.tablehigh;
2016
2017                         /* calculate new index (index - low) */
2018                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2019                         if (l  == 0) {
2020                                 M_INTMOVE(s1, REG_ITMP1);
2021                         } else if (IS_IMM(l)) {
2022                                 M_SUB_IMM(REG_ITMP1, s1, l);
2023                         } else {
2024                                 ICONST(REG_ITMP2, l);
2025                                 M_SUB(REG_ITMP1, s1, REG_ITMP2);
2026                         }
2027
2028                         /* range check (index <= high-low) */
2029                         i = i - l + 1;
2030                         M_COMPARE(REG_ITMP1, i-1);
2031                         emit_bugt(cd, table[0].block);
2032
2033                         /* build jump table top down and use address of lowest entry */
2034
2035                         table += i;
2036
2037                         while (--i >= 0) {
2038                                 dseg_add_target(cd, table->block);
2039                                 --table;
2040                         }
2041                         }
2042
2043                         /* length of dataseg after last dseg_add_target is used by load */
2044                         /* TODO: this loads from data-segment */
2045                         M_ADD(REG_ITMP2, REG_PV, REG_LSL(REG_ITMP1, 2));
2046                         M_LDR(REG_PC, REG_ITMP2, -(cd->dseglen));
2047                         break;
2048
2049                 case ICMD_LOOKUPSWITCH: /* ..., key ==> ...                           */
2050                         {
2051                         s4 i;
2052                         lookup_target_t *lookup;
2053
2054                         lookup = iptr->dst.lookup;
2055
2056                         i = iptr->sx.s23.s2.lookupcount;
2057
2058                         /* compare keys */
2059                         MCODECHECK((i<<2)+8);
2060                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2061
2062                         while (--i >= 0) {
2063                                 M_COMPARE(s1, lookup->value);
2064                                 emit_beq(cd, lookup->target.block);
2065                                 lookup++;
2066                         }
2067
2068                         /* default branch */
2069                         emit_br(cd, iptr->sx.s23.s3.lookupdefault.block);
2070                         }
2071                         break;
2072
2073                 case ICMD_FRETURN:      /* ..., retvalue ==> ...                      */
2074
2075 #if !defined(ENABLE_SOFTFLOAT)
2076                         REPLACEMENT_POINT_RETURN(cd, iptr);
2077                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
2078                         M_CAST_F2I(s1, REG_RESULT);
2079                         goto ICMD_RETURN_do;
2080 #endif
2081
2082                 case ICMD_IRETURN:      /* ..., retvalue ==> ...                      */
2083
2084                         REPLACEMENT_POINT_RETURN(cd, iptr);
2085                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2086                         M_INTMOVE(s1, REG_RESULT);
2087                         goto ICMD_RETURN_do;
2088
2089                 case ICMD_DRETURN:      /* ..., retvalue ==> ...                      */
2090
2091 #if !defined(ENABLE_SOFTFLOAT)
2092                         REPLACEMENT_POINT_RETURN(cd, iptr);
2093                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
2094                         M_CAST_D2L(s1, REG_RESULT_PACKED);
2095                         goto ICMD_RETURN_do;
2096 #endif
2097
2098                 case ICMD_LRETURN:      /* ..., retvalue ==> ...                      */
2099
2100                         REPLACEMENT_POINT_RETURN(cd, iptr);
2101                         s1 = emit_load_s1(jd, iptr, REG_RESULT_PACKED);
2102                         M_LNGMOVE(s1, REG_RESULT_PACKED);
2103                         goto ICMD_RETURN_do;
2104
2105                 case ICMD_ARETURN:      /* ..., retvalue ==> ...                      */
2106
2107                         REPLACEMENT_POINT_RETURN(cd, iptr);
2108                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2109                         M_INTMOVE(s1, REG_RESULT);
2110                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2111                                 patcher_add_patch_ref(jd, PATCHER_resolve_class,
2112                                                                         iptr->sx.s23.s2.uc, 0);
2113                         }
2114                         goto ICMD_RETURN_do;
2115
2116                 case ICMD_RETURN:       /* ...  ==> ...                               */
2117
2118                         REPLACEMENT_POINT_RETURN(cd, iptr);
2119                         ICMD_RETURN_do:
2120
2121 #if !defined(NDEBUG)
2122                         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
2123                                 emit_verbosecall_exit(jd);
2124 #endif
2125
2126 #if defined(ENABLE_THREADS)
2127                         /* call monitorexit function */
2128
2129                         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
2130                                 /* stack offset for monitor argument */
2131
2132                                 s1 = rd->memuse * 8;
2133
2134                                 /* we need to save the proper return value */
2135
2136                                 switch (iptr->opc) {
2137                                 case ICMD_IRETURN:
2138                                 case ICMD_ARETURN:
2139                                 case ICMD_LRETURN:
2140                                 case ICMD_FRETURN: /* XXX TWISTI: is that correct? */
2141                                 case ICMD_DRETURN:
2142                                         M_STMFD(BITMASK_RESULT, REG_SP);
2143                                         s1 += 2 * 4;
2144                                         break;
2145                                 }
2146
2147                                 M_LDR(REG_A0, REG_SP, s1);
2148                                 disp = dseg_add_functionptr(cd, LOCK_monitor_exit);
2149                                 M_DSEG_BRANCH(disp);
2150
2151                                 /* we no longer need PV here, no more loading */
2152                                 /*s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2153                                 M_RECOMPUTE_PV(s1);*/
2154
2155                                 switch (iptr->opc) {
2156                                 case ICMD_IRETURN:
2157                                 case ICMD_ARETURN:
2158                                 case ICMD_LRETURN:
2159                                 case ICMD_FRETURN: /* XXX TWISTI: is that correct? */
2160                                 case ICMD_DRETURN:
2161                                         M_LDMFD(BITMASK_RESULT, REG_SP);
2162                                         break;
2163                                 }
2164                         }
2165 #endif
2166
2167                         /* deallocate stackframe for spilled variables */
2168
2169                         if ((cd->stackframesize / 4 - savedregs_num) > 0)
2170                                 M_ADD_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - savedregs_num);
2171
2172                         /* restore callee saved registers + do return */
2173
2174                         if (savedregs_bitmask) {
2175                                 if (!code_is_leafmethod(code)) {
2176                                         savedregs_bitmask &= ~(1<<REG_LR);
2177                                         savedregs_bitmask |= (1<<REG_PC);
2178                                 }
2179                                 M_LDMFD(savedregs_bitmask, REG_SP);
2180                         }
2181
2182                         /* if LR was not on stack, we need to return manually */
2183
2184                         if (code_is_leafmethod(code))
2185                                 M_MOV(REG_PC, REG_LR);
2186                         break;
2187
2188                 case ICMD_BUILTIN:      /* ..., arg1, arg2, arg3 ==> ...              */
2189
2190                         bte = iptr->sx.s23.s3.bte;
2191                         md  = bte->md;
2192                         goto ICMD_INVOKE_do;
2193
2194                 case ICMD_INVOKESTATIC: /* ..., [arg1, [arg2 ...]] ==> ...            */
2195                 case ICMD_INVOKESPECIAL:/* ..., objectref, [arg1, [arg2 ...]] ==> ... */
2196                 case ICMD_INVOKEVIRTUAL:/* op1 = arg count, val.a = method pointer    */
2197                 case ICMD_INVOKEINTERFACE:
2198
2199                         REPLACEMENT_POINT_INVOKE(cd, iptr);
2200
2201                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2202                                 lm = NULL;
2203                                 um = iptr->sx.s23.s3.um;
2204                                 md = um->methodref->parseddesc.md;
2205                         }
2206                         else {
2207                                 lm = iptr->sx.s23.s3.fmiref->p.method;
2208                                 um = NULL;
2209                                 md = lm->parseddesc;
2210                         }
2211
2212                 ICMD_INVOKE_do:
2213                         /* copy arguments to registers or stack location */
2214
2215                         s3 = md->paramcount;
2216
2217                         MCODECHECK((s3 << 1) + 64);
2218
2219                         for (s3 = s3 - 1; s3 >= 0; s3--) {
2220                                 var = VAR(iptr->sx.s23.s2.args[s3]);
2221                                 d   = md->params[s3].regoff;
2222
2223                                 if (var->flags & PREALLOC) /* argument was precolored? */
2224                                         continue;
2225
2226                                 /* TODO: document me */
2227 #if !defined(ENABLE_SOFTFLOAT)
2228                                 if (IS_INT_LNG_TYPE(var->type)) {
2229 #endif /* !defined(ENABLE_SOFTFLOAT) */
2230                                         if (!md->params[s3].inmemory) {
2231                                                 s1 = emit_load(jd, iptr, var, d);
2232
2233                                                 if (IS_2_WORD_TYPE(var->type))
2234                                                         M_LNGMOVE(s1, d);
2235                                                 else
2236                                                         M_INTMOVE(s1, d);
2237                                         }
2238                                         else {
2239                                                 if (IS_2_WORD_TYPE(var->type)) {
2240                                                         s1 = emit_load(jd, iptr, var, REG_ITMP12_PACKED);
2241                                                         M_LST(s1, REG_SP, d);
2242                                                 }
2243                                                 else {
2244                                                         s1 = emit_load(jd, iptr, var, REG_ITMP1);
2245                                                         M_IST(s1, REG_SP, d);
2246                                                 }
2247                                         }
2248 #if !defined(ENABLE_SOFTFLOAT)
2249                                 }
2250                                 else {
2251                                         if (!md->params[s3].inmemory) {
2252                                                 s1 = emit_load(jd, iptr, var, REG_FTMP1);
2253                                                 if (IS_2_WORD_TYPE(var->type))
2254                                                         M_CAST_D2L(s1, d);
2255                                                 else
2256                                                         M_CAST_F2I(s1, d);
2257                                         }
2258                                         else {
2259                                                 s1 = emit_load(jd, iptr, var, REG_FTMP1);
2260                                                 if (IS_2_WORD_TYPE(var->type))
2261                                                         M_DST(s1, REG_SP, d);
2262                                                 else
2263                                                         M_FST(s1, REG_SP, d);
2264                                         }
2265                                 }
2266 #endif /* !defined(ENABLE_SOFTFLOAT) */
2267                         }
2268
2269                         switch (iptr->opc) {
2270                         case ICMD_BUILTIN:
2271
2272                                 if (bte->stub == NULL) {
2273                                         disp = dseg_add_functionptr(cd, bte->fp);
2274                                 } else {
2275                                         disp = dseg_add_functionptr(cd, bte->stub);
2276                                 }
2277
2278                                 M_DSEG_LOAD(REG_PV, disp); /* pointer to built-in-function */
2279
2280                                 /* generate the actual call */
2281
2282                                 M_MOV(REG_LR, REG_PC);
2283                                 M_MOV(REG_PC, REG_PV);
2284                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2285                                 M_RECOMPUTE_PV(s1);
2286                                 break;
2287
2288                         case ICMD_INVOKESPECIAL:
2289                                 emit_nullpointer_check(cd, iptr, REG_A0);
2290                                 /* fall through */
2291
2292                         case ICMD_INVOKESTATIC:
2293                                 if (lm == NULL) {
2294                                         disp = dseg_add_unique_address(cd, NULL);
2295
2296                                         patcher_add_patch_ref(jd, PATCHER_invokestatic_special,
2297                                                                                 um, disp);
2298                                 }
2299                                 else
2300                                         disp = dseg_add_address(cd, lm->stubroutine);
2301
2302                                 M_DSEG_LOAD(REG_PV, disp);            /* Pointer to method */
2303
2304                                 /* generate the actual call */
2305
2306                                 M_MOV(REG_LR, REG_PC);
2307                                 M_MOV(REG_PC, REG_PV);
2308                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2309                                 M_RECOMPUTE_PV(s1);
2310                                 break;
2311
2312                         case ICMD_INVOKEVIRTUAL:
2313                                 if (lm == NULL) {
2314                                         patcher_add_patch_ref(jd, PATCHER_invokevirtual, um, 0);
2315
2316                                         s1 = 0;
2317                                 }
2318                                 else
2319                                         s1 = OFFSET(vftbl_t, table[0]) +
2320                                                 sizeof(methodptr) * lm->vftblindex;
2321
2322                                 /* implicit null-pointer check */
2323                                 M_LDR_INTERN(REG_METHODPTR, REG_A0,
2324                                                          OFFSET(java_object_t, vftbl));
2325                                 M_LDR_INTERN(REG_PV, REG_METHODPTR, s1);
2326
2327                                 /* generate the actual call */
2328
2329                                 M_MOV(REG_LR, REG_PC);
2330                                 M_MOV(REG_PC, REG_PV);
2331                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2332                                 M_RECOMPUTE_PV(s1);
2333                                 break;
2334
2335                         case ICMD_INVOKEINTERFACE:
2336                                 if (lm == NULL) {
2337                                         patcher_add_patch_ref(jd, PATCHER_invokeinterface, um, 0);
2338
2339                                         s1 = 0;
2340                                         s2 = 0;
2341                                 }
2342                                 else {
2343                                         s1 = OFFSET(vftbl_t, interfacetable[0]) -
2344                                                 sizeof(methodptr*) * lm->class->index;
2345                                         s2 = sizeof(methodptr) * (lm - lm->class->methods);
2346                                 }
2347
2348                                 /* implicit null-pointer check */
2349                                 M_LDR_INTERN(REG_METHODPTR, REG_A0,
2350                                                          OFFSET(java_object_t, vftbl));
2351                                 M_LDR_INTERN(REG_METHODPTR, REG_METHODPTR, s1);
2352                                 M_LDR_INTERN(REG_PV, REG_METHODPTR, s2);
2353
2354                                 /* generate the actual call */
2355
2356                                 M_MOV(REG_LR, REG_PC);
2357                                 M_MOV(REG_PC, REG_PV);
2358                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2359                                 M_RECOMPUTE_PV(s1);
2360                                 break;
2361                         }
2362
2363                         /* store size of call code in replacement point */
2364                         REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2365
2366                         /* store return value */
2367
2368                         d = md->returntype.type;
2369
2370 #if !defined(__SOFTFP__)
2371                         /* TODO: this is only a hack, since we use R0/R1 for float
2372                            return!  this depends on gcc; it is independent from
2373                            our ENABLE_SOFTFLOAT define */
2374                         if (iptr->opc == ICMD_BUILTIN && d != TYPE_VOID && IS_FLT_DBL_TYPE(d)) {
2375 #if 0 && !defined(NDEBUG)
2376                                 dolog("BUILTIN that returns float or double (%s.%s)", m->class->name->text, m->name->text);
2377 #endif
2378                                 /* we cannot use this macro, since it is not defined
2379                                    in ENABLE_SOFTFLOAT M_CAST_FLT_TO_INT_TYPED(d,
2380                                    REG_FRESULT, REG_RESULT_TYPED(d)); */
2381                                 if (IS_2_WORD_TYPE(d)) {
2382                                         DCD(0xed2d8102); /* stfd    f0, [sp, #-8]! */
2383                                         M_LDRD_UPDATE(REG_RESULT_PACKED, REG_SP, 8);
2384                                 } else {
2385                                         DCD(0xed2d0101); /* stfs    f0, [sp, #-4]!*/
2386                                         M_LDR_UPDATE(REG_RESULT, REG_SP, 4);
2387                                 }
2388                         }
2389 #endif
2390
2391                         if (d != TYPE_VOID) {
2392 #if !defined(ENABLE_SOFTFLOAT)
2393                                 if (IS_INT_LNG_TYPE(d)) {
2394 #endif /* !defined(ENABLE_SOFTFLOAT) */
2395                                         if (IS_2_WORD_TYPE(d)) {
2396                                                 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
2397                                                 M_LNGMOVE(REG_RESULT_PACKED, s1);
2398                                         }
2399                                         else {
2400                                                 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2401                                                 M_INTMOVE(REG_RESULT, s1);
2402                                         }
2403
2404 #if !defined(ENABLE_SOFTFLOAT)
2405                                 } else {
2406                                         s1 = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
2407                                         if (IS_2_WORD_TYPE(d))
2408                                                 M_CAST_L2D(REG_RESULT_PACKED, s1);
2409                                         else
2410                                                 M_CAST_I2F(REG_RESULT, s1);
2411                                 }
2412 #endif /* !defined(ENABLE_SOFTFLOAT) */
2413
2414                                 emit_store_dst(jd, iptr, s1);
2415                         }
2416                         break;
2417
2418                 case ICMD_CHECKCAST:  /* ..., objectref ==> ..., objectref            */
2419
2420                         if (!(iptr->flags.bits & INS_FLAG_ARRAY)) {
2421                                 /* object type cast-check */
2422
2423                         classinfo *super;
2424                         s4         superindex;
2425
2426                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2427                                 super      = NULL;
2428                                 superindex = 0;
2429                         }
2430                         else {
2431                                 super      = iptr->sx.s23.s3.c.cls;
2432                                 superindex = super->index;
2433                         }
2434
2435                                 if ((super == NULL) || !(super->flags & ACC_INTERFACE))
2436                                         CODEGEN_CRITICAL_SECTION_NEW;
2437
2438                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2439
2440                         /* if class is not resolved, check which code to call */
2441
2442                         if (super == NULL) {
2443                                 M_TST(s1, s1);
2444                                 emit_label_beq(cd, BRANCH_LABEL_1);
2445
2446                                 disp = dseg_add_unique_s4(cd, 0); /* super->flags */
2447                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_flags,
2448                                                     iptr->sx.s23.s3.c.ref, disp);
2449
2450                                 M_DSEG_LOAD(REG_ITMP2, disp);
2451                                 disp = dseg_add_s4(cd, ACC_INTERFACE);
2452                                 M_DSEG_LOAD(REG_ITMP3, disp);
2453                                 M_TST(REG_ITMP2, REG_ITMP3);
2454                                 emit_label_beq(cd, BRANCH_LABEL_2);
2455                         }
2456
2457                         /* interface checkcast code */
2458
2459                         if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2460                                 if ((super == NULL) || !IS_IMM(superindex)) {
2461                                         disp = dseg_add_unique_s4(cd, superindex);
2462                                 }
2463                                 if (super == NULL) {
2464                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_index,
2465                                                             iptr->sx.s23.s3.c.ref, disp);
2466                                 }
2467                                 else {
2468                                         M_TST(s1, s1);
2469                                         emit_label_beq(cd, BRANCH_LABEL_3);
2470                                 }
2471
2472                                 M_LDR_INTERN(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
2473                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, interfacetablelength));
2474
2475                                 /* we put unresolved or non-immediate superindices onto dseg */
2476                                 if ((super == NULL) || !IS_IMM(superindex)) {
2477                                         /* disp was computed before we added the patcher */
2478                                         M_DSEG_LOAD(REG_ITMP2, disp);
2479                                         M_CMP(REG_ITMP3, REG_ITMP2);
2480                                 } else {
2481                                         assert(IS_IMM(superindex));
2482                                         M_CMP_IMM(REG_ITMP3, superindex);
2483                                 }
2484
2485                                 emit_classcast_check(cd, iptr, BRANCH_LE, REG_ITMP3, s1);
2486
2487                                 /* if we loaded the superindex out of the dseg above, we do
2488                                    things differently here! */
2489                                 if ((super == NULL) || !IS_IMM(superindex)) {
2490
2491                                         M_LDR_INTERN(REG_ITMP3, s1, OFFSET(java_object_t, vftbl));
2492
2493                                         /* this assumes something */
2494                                         assert(OFFSET(vftbl_t, interfacetable[0]) == 0);
2495
2496                                         /* this does: REG_ITMP3 - superindex * sizeof(methodptr*) */
2497                                         assert(sizeof(methodptr*) == 4);
2498                                         M_SUB(REG_ITMP2, REG_ITMP3, REG_LSL(REG_ITMP2, 2));
2499
2500                                         s2 = 0;
2501
2502                                 } else {
2503
2504                                         s2 = OFFSET(vftbl_t, interfacetable[0]) -
2505                                                                 superindex * sizeof(methodptr*);
2506
2507                                 }
2508
2509                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, s2);
2510                                 M_TST(REG_ITMP3, REG_ITMP3);
2511                                 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_ITMP3, s1);
2512
2513                                 if (super == NULL)
2514                                         emit_label_br(cd, BRANCH_LABEL_4);
2515                                 else
2516                                         emit_label(cd, BRANCH_LABEL_3);
2517                         }
2518
2519                         /* class checkcast code */
2520
2521                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2522                                 if (super == NULL) {
2523                                         emit_label(cd, BRANCH_LABEL_2);
2524
2525                                         disp = dseg_add_unique_address(cd, NULL);
2526
2527                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_vftbl,
2528                                                             iptr->sx.s23.s3.c.ref,
2529                                                                                 disp);
2530                                 }
2531                                 else {
2532                                         disp = dseg_add_address(cd, super->vftbl);
2533
2534                                         M_TST(s1, s1);
2535                                         emit_label_beq(cd, BRANCH_LABEL_5);
2536                                 }
2537
2538                                 M_LDR_INTERN(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
2539                                 M_DSEG_LOAD(REG_ITMP3, disp);
2540
2541                                 CODEGEN_CRITICAL_SECTION_START;
2542
2543                                 M_LDR_INTERN(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, baseval));
2544                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, baseval));
2545                                 M_SUB(REG_ITMP2, REG_ITMP2, REG_ITMP3);
2546                                 M_DSEG_LOAD(REG_ITMP3, disp);
2547                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, diffval));
2548
2549                                 CODEGEN_CRITICAL_SECTION_END;
2550
2551                                 M_CMP(REG_ITMP2, REG_ITMP3);
2552                                 emit_classcast_check(cd, iptr, BRANCH_UGT, 0, s1);
2553
2554                                 if (super != NULL)
2555                                         emit_label(cd, BRANCH_LABEL_5);
2556                         }
2557
2558                         if (super == NULL) {
2559                                 emit_label(cd, BRANCH_LABEL_1);
2560                                 emit_label(cd, BRANCH_LABEL_4);
2561                         }
2562
2563                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
2564                         }
2565                         else {
2566                                 /* array type cast-check */
2567
2568                                 s1 = emit_load_s1(jd, iptr, REG_A0);
2569                                 M_INTMOVE(s1, REG_A0);
2570
2571                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2572                                         disp = dseg_add_unique_address(cd, NULL);
2573
2574                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
2575                                                                                 iptr->sx.s23.s3.c.ref,
2576                                                                                 disp);
2577                                 }
2578                                 else
2579                                         disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2580
2581                                 M_DSEG_LOAD(REG_A1, disp);
2582                                 disp = dseg_add_functionptr(cd, BUILTIN_arraycheckcast);
2583                                 M_DSEG_BRANCH(disp);
2584
2585                                 /* recompute pv */
2586                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2587                                 M_RECOMPUTE_PV(disp);
2588
2589                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2590                                 M_TST(REG_RESULT, REG_RESULT);
2591                                 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_RESULT, s1);
2592
2593                                 d = codegen_reg_of_dst(jd, iptr, s1);
2594                         }
2595
2596                         M_INTMOVE(s1, d);
2597                         emit_store_dst(jd, iptr, d);
2598                         break;
2599
2600                 case ICMD_INSTANCEOF: /* ..., objectref ==> ..., intresult            */
2601
2602                         {
2603                         classinfo *super;
2604                         s4         superindex;
2605
2606                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2607                                 super      = NULL;
2608                                 superindex = 0;
2609                         }
2610                         else {
2611                                 super      = iptr->sx.s23.s3.c.cls;
2612                                 superindex = super->index;
2613                         }
2614
2615                         if ((super == NULL) || !(super->flags & ACC_INTERFACE))
2616                                 CODEGEN_CRITICAL_SECTION_NEW;
2617
2618                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2619                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
2620
2621                         if (s1 == d) {
2622                                 M_MOV(REG_ITMP1, s1);
2623                                 s1 = REG_ITMP1;
2624                         }
2625
2626                         /* if class is not resolved, check which code to call */
2627
2628                         if (super == NULL) {
2629                                 M_EOR(d, d, d);
2630
2631                                 M_TST(s1, s1);
2632                                 emit_label_beq(cd, BRANCH_LABEL_1);
2633
2634                                 disp = dseg_add_unique_s4(cd, 0); /* super->flags */
2635                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_flags,
2636                                                     iptr->sx.s23.s3.c.ref, disp);
2637
2638                                 M_DSEG_LOAD(REG_ITMP2, disp);
2639                                 disp = dseg_add_s4(cd, ACC_INTERFACE);
2640                                 M_DSEG_LOAD(REG_ITMP3, disp);
2641                                 M_TST(REG_ITMP2, REG_ITMP3);
2642                                 emit_label_beq(cd, BRANCH_LABEL_2);
2643                         }
2644
2645                         /* interface checkcast code */
2646
2647                         if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2648                                 if ((super == NULL) || !IS_IMM(superindex)) {
2649                                         disp = dseg_add_unique_s4(cd, superindex);
2650                                 }
2651                                 if (super == NULL) {
2652                                         /* If d == REG_ITMP2, then it's destroyed in check
2653                                            code above.  */
2654                                         if (d == REG_ITMP2)
2655                                                 M_EOR(d, d, d);
2656
2657                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_index,
2658                                                             iptr->sx.s23.s3.c.ref, disp);
2659                                 }
2660                                 else {
2661                                         M_EOR(d, d, d);
2662                                         M_TST(s1, s1);
2663                                         emit_label_beq(cd, BRANCH_LABEL_3);
2664                                 }
2665
2666                                 M_LDR_INTERN(REG_ITMP1, s1, OFFSET(java_object_t, vftbl));
2667                                 M_LDR_INTERN(REG_ITMP3,
2668                                                          REG_ITMP1, OFFSET(vftbl_t, interfacetablelength));
2669
2670                                 /* we put unresolved or non-immediate superindices onto dseg
2671                                    and do things slightly different */
2672                                 if ((super == NULL) || !IS_IMM(superindex)) {
2673                                         /* disp was computed before we added the patcher */
2674                                         M_DSEG_LOAD(REG_ITMP2, disp);
2675                                         M_CMP(REG_ITMP3, REG_ITMP2);
2676
2677                                         if (d == REG_ITMP2) {
2678                                                 M_EORLE(d, d, d);
2679                                                 M_BLE(4);
2680                                         } else {
2681                                                 M_BLE(3);
2682                                         }
2683
2684                                         /* this assumes something */
2685                                         assert(OFFSET(vftbl_t, interfacetable[0]) == 0);
2686
2687                                         /* this does: REG_ITMP3 - superindex * sizeof(methodptr*) */
2688                                         assert(sizeof(methodptr*) == 4);
2689                                         M_SUB(REG_ITMP1, REG_ITMP1, REG_LSL(REG_ITMP2, 2));
2690
2691                                         if (d == REG_ITMP2) {
2692                                                 M_EOR(d, d, d);
2693                                         }
2694
2695                                         s2 = 0;
2696
2697                                 } else {
2698                                         assert(IS_IMM(superindex));
2699                                         M_CMP_IMM(REG_ITMP3, superindex);
2700
2701                                         M_BLE(2);
2702
2703                                         s2 = OFFSET(vftbl_t, interfacetable[0]) -
2704                                                 superindex * sizeof(methodptr*);
2705
2706                                 }
2707
2708                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP1, s2);
2709                                 M_TST(REG_ITMP3, REG_ITMP3);
2710                                 M_MOVNE_IMM(1, d);
2711
2712                                 if (super == NULL)
2713                                         emit_label_br(cd, BRANCH_LABEL_4);
2714                                 else
2715                                         emit_label(cd, BRANCH_LABEL_3);
2716                         }
2717
2718                         /* class checkcast code */
2719
2720                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2721                                 if (super == NULL) {
2722                                         emit_label(cd, BRANCH_LABEL_2);
2723
2724                                         disp = dseg_add_unique_address(cd, NULL);
2725
2726                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_vftbl,
2727                                                             iptr->sx.s23.s3.c.ref, disp);
2728                                 }
2729                                 else {
2730                                         disp = dseg_add_address(cd, super->vftbl);
2731
2732                                         M_EOR(d, d, d);
2733                                         M_TST(s1, s1);
2734                                         emit_label_beq(cd, BRANCH_LABEL_5);
2735                                 }
2736
2737                                 M_LDR_INTERN(REG_ITMP1, s1, OFFSET(java_object_t, vftbl));
2738                                 M_DSEG_LOAD(REG_ITMP2, disp);
2739
2740                                 CODEGEN_CRITICAL_SECTION_START;
2741
2742                                 M_LDR_INTERN(REG_ITMP1, REG_ITMP1, OFFSET(vftbl_t, baseval));
2743                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2744                                 M_LDR_INTERN(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2745
2746                                 CODEGEN_CRITICAL_SECTION_END;
2747
2748                                 M_SUB(REG_ITMP1, REG_ITMP1, REG_ITMP3);
2749                                 M_CMP(REG_ITMP1, REG_ITMP2);
2750                                 /* If d == REG_ITMP2, then it's destroyed */
2751                                 if (d == REG_ITMP2)
2752                                         M_EOR(d, d, d);
2753                                 M_MOVLS_IMM(1, d);
2754
2755                                 if (super != NULL)
2756                                         emit_label(cd, BRANCH_LABEL_5);
2757                         }
2758
2759                         if (super == NULL) {
2760                                 emit_label(cd, BRANCH_LABEL_1);
2761                                 emit_label(cd, BRANCH_LABEL_4);
2762                         }
2763
2764                         }
2765
2766                         emit_store_dst(jd, iptr, d);
2767                         break;
2768
2769                 case ICMD_MULTIANEWARRAY:/* ..., cnt1, [cnt2, ...] ==> ..., arrayref  */
2770
2771                         /* copy sizes to stack if necessary  */
2772
2773                         MCODECHECK((iptr->s1.argcount << 1) + 64);
2774
2775                         for (s1 = iptr->s1.argcount; --s1 >= 0; ) {
2776
2777                                 var = VAR(iptr->sx.s23.s2.args[s1]);
2778
2779                                 /* copy SAVEDVAR sizes to stack */
2780
2781                                 if (!(var->flags & PREALLOC)) {
2782                                         s2 = emit_load(jd, iptr, var, REG_ITMP1);
2783                                         M_STR(s2, REG_SP, s1 * 4);
2784                                 }
2785                         }
2786
2787                         /* a0 = dimension count */
2788
2789                         assert(IS_IMM(iptr->s1.argcount));
2790                         M_MOV_IMM(REG_A0, iptr->s1.argcount);
2791
2792                         /* is patcher function set? */
2793
2794                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2795                                 disp = dseg_add_unique_address(cd, NULL);
2796
2797                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
2798                                                                         iptr->sx.s23.s3.c.ref, disp);
2799                         }
2800                         else
2801                                 disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2802
2803                         /* a1 = arraydescriptor */
2804
2805                         M_DSEG_LOAD(REG_A1, disp);
2806
2807                         /* a2 = pointer to dimensions = stack pointer */
2808
2809                         M_INTMOVE(REG_SP, REG_A2);
2810
2811                         /* call builtin_multianewarray here */
2812
2813                         disp = dseg_add_functionptr(cd, BUILTIN_multianewarray);
2814                         M_DSEG_BRANCH(disp);
2815
2816                         /* recompute pv */
2817
2818                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2819                         M_RECOMPUTE_PV(s1);
2820
2821                         /* check for exception before result assignment */
2822
2823                         emit_exception_check(cd, iptr);
2824
2825                         /* get arrayref */
2826
2827                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2828                         M_INTMOVE(REG_RESULT, d);
2829                         emit_store_dst(jd, iptr, d);
2830                         break;
2831
2832                 case ICMD_CHECKNULL:  /* ..., objectref  ==> ..., objectref           */
2833
2834                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2835                         emit_nullpointer_check(cd, iptr, s1);
2836                         break;
2837
2838                 default:
2839                         exceptions_throw_internalerror("Unknown ICMD %d during code generation",
2840                                                                                    iptr->opc);
2841                         return false;
2842                 } /* the big switch */
2843
2844                 } /* for all instructions */
2845
2846         } /* for all basic blocks */
2847
2848         dseg_createlinenumbertable(cd);
2849
2850
2851         /* generate traps */
2852
2853         emit_patcher_traps(jd);
2854
2855         /* everything's ok */
2856
2857         return true;
2858 }
2859
2860
2861 /* codegen_emit_stub_compiler **************************************************
2862
2863    Emits a stub routine which calls the compiler.
2864
2865 *******************************************************************************/
2866
2867 void codegen_emit_stub_compiler(jitdata *jd)
2868 {
2869         methodinfo  *m;
2870         codegendata *cd;
2871
2872         /* get required compiler data */
2873
2874         m  = jd->m;
2875         cd = jd->cd;
2876
2877         /* code for the stub */
2878
2879         M_LDR_INTERN(REG_ITMP1, REG_PC, -(2 * 4 + 2 * SIZEOF_VOID_P));
2880         M_LDR_INTERN(REG_PC, REG_PC, -(3 * 4 + 3 * SIZEOF_VOID_P));
2881 }
2882
2883
2884 /* codegen_emit_stub_native ****************************************************
2885
2886    Emits a stub routine which calls a native method.
2887
2888 *******************************************************************************/
2889
2890 void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f, int skipparams)
2891 {
2892         methodinfo  *m;
2893         codeinfo    *code;
2894         codegendata *cd;
2895         methoddesc  *md;
2896         s4           i, j;
2897         s4           t;
2898         s4           disp, funcdisp, s1, s2;
2899
2900         /* get required compiler data */
2901
2902         m    = jd->m;
2903         code = jd->code;
2904         cd   = jd->cd;
2905
2906         /* initialize variables */
2907
2908         md = m->parseddesc;
2909
2910         /* calculate stackframe size */
2911
2912         cd->stackframesize =
2913                 4 +                                                /* return address  */
2914                 sizeof(stackframeinfo) +                           /* stackframeinfo  */
2915                 sizeof(localref_table) +                           /* localref_table  */
2916                 nmd->memuse * 4;                                   /* stack arguments */
2917
2918         /* align stack to 8-byte */
2919
2920         cd->stackframesize = (cd->stackframesize + 4) & ~4;
2921
2922         /* create method header */
2923
2924         (void) dseg_add_unique_address(cd, code);              /* CodeinfoPointer */
2925         (void) dseg_add_unique_s4(cd, cd->stackframesize);     /* FrameSize       */
2926         (void) dseg_add_unique_s4(cd, 0);                      /* IsSync          */
2927         (void) dseg_add_unique_s4(cd, 0);                      /* IsLeaf          */
2928         (void) dseg_add_unique_s4(cd, 0);                      /* IntSave         */
2929         (void) dseg_add_unique_s4(cd, 0);                      /* FltSave         */
2930         (void) dseg_addlinenumbertablesize(cd);
2931         (void) dseg_add_unique_s4(cd, 0);                      /* ExTableSize     */
2932
2933         /* generate stub code */
2934
2935         M_STMFD(1<<REG_LR, REG_SP);
2936         M_SUB_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - 1);
2937
2938 #if !defined(NDEBUG)
2939         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
2940                 emit_verbosecall_enter(jd);
2941 #endif
2942
2943         /* get function address (this must happen before the stackframeinfo) */
2944
2945         funcdisp = dseg_add_functionptr(cd, f);
2946
2947         if (f == NULL)
2948                 patcher_add_patch_ref(jd, PATCHER_resolve_native_function, m, funcdisp);
2949
2950 #if defined(ENABLE_GC_CACAO)
2951         /* Save callee saved integer registers in stackframeinfo (GC may
2952            need to recover them during a collection). */
2953
2954         disp = cd->stackframesize - SIZEOF_VOID_P - sizeof(stackframeinfo) +
2955                 OFFSET(stackframeinfo, intregs);
2956
2957         for (i = 0; i < INT_SAV_CNT; i++)
2958                 M_STR_INTERN(abi_registers_integer_saved[i], REG_SP, disp + i * 4);
2959 #endif
2960
2961         /* Save integer and float argument registers (these are 4
2962            registers, stack is 8-byte aligned). */
2963
2964         M_STMFD(BITMASK_ARGS, REG_SP);
2965         /* TODO: floating point */
2966
2967         /* create native stackframe info */
2968
2969         M_ADD_IMM(REG_A0, REG_SP, 4*4);
2970         M_MOV(REG_A1, REG_PV);
2971         disp = dseg_add_functionptr(cd, codegen_start_native_call);
2972         M_DSEG_BRANCH(disp);
2973
2974         /* recompute pv */
2975
2976         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2977         M_RECOMPUTE_PV(s1);
2978
2979         /* remember class argument */
2980
2981         if (m->flags & ACC_STATIC)
2982                 M_MOV(REG_ITMP3, REG_RESULT);
2983
2984         /* Restore integer and float argument registers (these are 4
2985            registers, stack is 8-byte aligned). */
2986
2987         M_LDMFD(BITMASK_ARGS, REG_SP);
2988         /* TODO: floating point */
2989
2990         /* copy or spill arguments to new locations */
2991         /* ATTENTION: the ARM has only integer argument registers! */
2992
2993         for (i = md->paramcount - 1, j = i + skipparams; i >= 0; i--, j--) {
2994                 t = md->paramtypes[i].type;
2995
2996                 if (!md->params[i].inmemory) {
2997                         s1 = md->params[i].regoff;
2998                         s2 = nmd->params[j].regoff;
2999
3000                         if (!nmd->params[j].inmemory) {
3001 #if !defined(__ARM_EABI__)
3002                                 SPLIT_OPEN(t, s2, REG_ITMP1);
3003 #endif
3004
3005                                 if (IS_2_WORD_TYPE(t))
3006                                         M_LNGMOVE(s1, s2);
3007                                 else
3008                                         M_INTMOVE(s1, s2);
3009
3010 #if !defined(__ARM_EABI__)
3011                                 SPLIT_STORE_AND_CLOSE(t, s2, 0);
3012 #endif
3013                         }
3014                         else {
3015                                 if (IS_2_WORD_TYPE(t))
3016                                         M_LST(s1, REG_SP, s2);
3017                                 else
3018                                         M_IST(s1, REG_SP, s2);
3019                         }
3020                 }
3021                 else {
3022                         s1 = md->params[i].regoff + cd->stackframesize;
3023                         s2 = nmd->params[j].regoff;
3024
3025                         if (IS_2_WORD_TYPE(t)) {
3026                                 M_LLD(REG_ITMP12_PACKED, REG_SP, s1);
3027                                 M_LST(REG_ITMP12_PACKED, REG_SP, s2);
3028                         }
3029                         else {
3030                                 M_ILD(REG_ITMP1, REG_SP, s1);
3031                                 M_IST(REG_ITMP1, REG_SP, s2);
3032                         }
3033                 }
3034         }
3035
3036         /* Handle native Java methods. */
3037
3038         if (m->flags & ACC_NATIVE) {
3039                 /* put class into second argument register */
3040
3041                 if (m->flags & ACC_STATIC)
3042                         M_MOV(REG_A1, REG_ITMP3);
3043
3044                 /* put env into first argument register */
3045
3046                 disp = dseg_add_address(cd, _Jv_env);
3047                 M_DSEG_LOAD(REG_A0, disp);
3048         }
3049
3050         /* do the native function call */
3051
3052         M_DSEG_BRANCH(funcdisp);
3053
3054         /* recompute pv */
3055         /* TODO: this is only needed because of the tracer ... do we
3056            really need it? */
3057
3058         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3059         M_RECOMPUTE_PV(s1);
3060
3061 #if !defined(__SOFTFP__)
3062         /* TODO: this is only a hack, since we use R0/R1 for float return! */
3063         /* this depends on gcc; it is independent from our ENABLE_SOFTFLOAT define */
3064         if (md->returntype.type != TYPE_VOID && IS_FLT_DBL_TYPE(md->returntype.type)) {
3065 #if 0 && !defined(NDEBUG)
3066                 dolog("NATIVESTUB that returns float or double (%s.%s)", m->class->name->text, m->name->text);
3067 #endif
3068                 /* we cannot use this macro, since it is not defined in ENABLE_SOFTFLOAT */
3069                 /* M_CAST_FLT_TO_INT_TYPED(md->returntype.type, REG_FRESULT, REG_RESULT_TYPED(md->returntype.type)); */
3070                 if (IS_2_WORD_TYPE(md->returntype.type)) {
3071                         DCD(0xed2d8102); /* stfd    f0, [sp, #-8]! */
3072                         M_LDRD_UPDATE(REG_RESULT_PACKED, REG_SP, 8);
3073                 } else {
3074                         DCD(0xed2d0101); /* stfs    f0, [sp, #-4]!*/
3075                         M_LDR_UPDATE(REG_RESULT, REG_SP, 4);
3076                 }
3077         }
3078 #endif
3079
3080 #if !defined(NDEBUG)
3081         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
3082                 emit_verbosecall_exit(jd);
3083 #endif
3084
3085         /* remove native stackframe info */
3086         /* TODO: improve this store/load */
3087
3088         M_STMFD(BITMASK_RESULT, REG_SP);
3089
3090         M_ADD_IMM(REG_A0, REG_SP, 2*4);
3091         M_MOV(REG_A1, REG_PV);
3092         disp = dseg_add_functionptr(cd, codegen_finish_native_call);
3093         M_DSEG_BRANCH(disp);
3094         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3095         M_RECOMPUTE_PV(s1);
3096
3097         M_MOV(REG_ITMP1_XPTR, REG_RESULT);
3098         M_LDMFD(BITMASK_RESULT, REG_SP);
3099
3100 #if defined(ENABLE_GC_CACAO)
3101         /* restore callee saved int registers from stackframeinfo (GC might have  */
3102         /* modified them during a collection).                                    */
3103
3104         disp = cd->stackframesize - SIZEOF_VOID_P - sizeof(stackframeinfo) +
3105                 OFFSET(stackframeinfo, intregs);
3106
3107         for (i = 0; i < INT_SAV_CNT; i++)
3108                 M_LDR_INTERN(abi_registers_integer_saved[i], REG_SP, disp + i * 4);
3109 #endif
3110
3111         /* finish stub code, but do not yet return to caller */
3112
3113         M_ADD_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - 1);
3114         M_LDMFD(1<<REG_LR, REG_SP);
3115
3116         /* check for exception */
3117
3118         M_TST(REG_ITMP1_XPTR, REG_ITMP1_XPTR);
3119         M_MOVEQ(REG_LR, REG_PC);            /* if no exception, return to caller  */
3120
3121         /* handle exception here */
3122
3123         M_SUB_IMM(REG_ITMP2_XPC, REG_LR, 4);/* move fault address into xpc        */
3124
3125         disp = dseg_add_functionptr(cd, asm_handle_nat_exception);
3126         M_DSEG_LOAD(REG_ITMP3, disp);       /* load asm exception handler address */
3127         M_MOV(REG_PC, REG_ITMP3);           /* jump to asm exception handler      */
3128
3129         /* generate patcher stubs */
3130
3131         emit_patcher_traps(jd);
3132 }
3133
3134
3135 /* asm_debug *******************************************************************
3136
3137    Lazy debugger!
3138
3139 *******************************************************************************/
3140
3141 void asm_debug(int a1, int a2, int a3, int a4)
3142 {
3143         printf("===> i am going to exit after this debugging message!\n");
3144         printf("got asm_debug(%p, %p, %p, %p)\n",(void*)a1,(void*)a2,(void*)a3,(void*)a4);
3145         vm_abort("leave you now");
3146 }
3147
3148
3149 /*
3150  * These are local overrides for various environment variables in Emacs.
3151  * Please do not remove this and leave it at the end of the file, where
3152  * Emacs will automagically detect them.
3153  * ---------------------------------------------------------------------
3154  * Local variables:
3155  * mode: c
3156  * indent-tabs-mode: t
3157  * c-basic-offset: 4
3158  * tab-width: 4
3159  * End:
3160  * vim:noexpandtab:sw=4:ts=4:
3161  */