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 && code_is_synchronized(code))
 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         /* IsSync contains the offset relative to the stack pointer for the
 151            argument of monitor_exit used in the exception handler. Since the
 152            offset could be zero and give a wrong meaning of the flag it is
 153            offset by one.
 154         */
 155         /* XXX Remove this "offset by one". */
 156
 157         code->synchronizedoffset = (rd->memuse + 1) * 8;
 158
 159         /* REMOVEME: We still need it for exception handling in assembler. */
 160
 161         if (code_is_leafmethod(code))
 162                 (void) dseg_add_unique_s4(cd, 1);
 163         else
 164                 (void) dseg_add_unique_s4(cd, 0);
 165
 166         (void) dseg_add_unique_s4(cd, INT_SAV_CNT - rd->savintreguse); /* IntSave */
 167         (void) dseg_add_unique_s4(cd, FLT_SAV_CNT - rd->savfltreguse); /* FltSave */
 168         (void) dseg_addlinenumbertablesize(cd);
 169         (void) dseg_add_unique_s4(cd, jd->exceptiontablelength); /* ExTableSize   */
 170
 171         /* create exception table */
 172
 173         for (ex = jd->exceptiontable; ex != NULL; ex = ex->down) {
 174                 dseg_add_target(cd, ex->start);
 175                 dseg_add_target(cd, ex->end);
 176                 dseg_add_target(cd, ex->handler);
 177                 (void) dseg_add_unique_address(cd, ex->catchtype.any);
 178         }
 179
 180         /* save return address and used callee saved registers */
 181
 182         savedregs_bitmask = 0;
 183
 184         if (!code_is_leafmethod(code))
 185                 savedregs_bitmask = (1<<REG_LR);
 186
 187         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--)
 188                 savedregs_bitmask |= (1<<(rd->savintregs[i]));
 189
 190 #if !defined(NDEBUG)
 191         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
 192                 log_text("!!! CODEGEN: floating-point callee saved registers are not saved to stack (SEVERE! STACK IS MESSED UP!)");
 193                 /* TODO: floating-point */
 194         }
 195 #endif
 196
 197         if (savedregs_bitmask)
 198                 M_STMFD(savedregs_bitmask, REG_SP);
 199
 200         /* create additional stack frame for spilled variables (if necessary) */
 201
 202         if ((cd->stackframesize / 4 - savedregs_num) > 0)
 203                 M_SUB_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - savedregs_num);
 204
 205         /* take arguments out of register or stack frame */
 206
 207         md = m->parseddesc;
 208         for (i = 0, len = 0; i < md->paramcount; i++) {
 209                 s1 = md->params[i].regoff;
 210                 t = md->paramtypes[i].type;
 211
 212                 varindex = jd->local_map[len * 5 + t];
 213
 214                 len += (IS_2_WORD_TYPE(t)) ? 2 : 1;          /* 2 word type arguments */
 215
 216                 if (varindex == UNUSED)
 217                         continue;
 218
 219                 var = VAR(varindex);
 220
 221                 /* ATTENTION: we use interger registers for all arguments (even float) */
 222 #if !defined(ENABLE_SOFTFLOAT)
 223                 if (IS_INT_LNG_TYPE(t)) {
 224 #endif
 225                         if (!md->params[i].inmemory) {
 226                                 if (!(var->flags & INMEMORY)) {
 227                                         if (IS_2_WORD_TYPE(t))
 228                                                 M_LNGMOVE(s1, var->vv.regoff);
 229                                         else
 230                                                 M_INTMOVE(s1, var->vv.regoff);
 231                                 }
 232                                 else {
 233                                         if (IS_2_WORD_TYPE(t))
 234                                                 M_LST(s1, REG_SP, var->vv.regoff);
 235                                         else
 236                                                 M_IST(s1, REG_SP, var->vv.regoff);
 237                                 }
 238                         }
 239                         else {                                   /* stack arguments       */
 240                                 if (!(var->flags & INMEMORY)) {      /* stack arg -> register */
 241                                         if (IS_2_WORD_TYPE(t))
 242                                                 M_LLD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 243                                         else
 244                                                 M_ILD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 245                                 }
 246                                 else {                               /* stack arg -> spilled  */
 247                                         /* Reuse Memory Position on Caller Stack */
 248                                         var->vv.regoff = cd->stackframesize + s1;
 249                                 }
 250                         }
 251 #if !defined(ENABLE_SOFTFLOAT)
 252                 }
 253                 else {
 254                         if (!md->params[i].inmemory) {
 255                                 if (!(var->flags & INMEMORY)) {
 256                                         if (IS_2_WORD_TYPE(t))
 257                                                 M_CAST_L2D(s1, var->vv.regoff);
 258                                         else
 259                                                 M_CAST_I2F(s1, var->vv.regoff);
 260                                 }
 261                                 else {
 262                                         if (IS_2_WORD_TYPE(t))
 263                                                 M_LST(s1, REG_SP, var->vv.regoff);
 264                                         else
 265                                                 M_IST(s1, REG_SP, var->vv.regoff);
 266                                 }
 267                         }
 268                         else {
 269                                 if (!(var->flags & INMEMORY)) {
 270                                         if (IS_2_WORD_TYPE(t))
 271                                                 M_DLD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 272                                         else
 273                                                 M_FLD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 274                                 }
 275                                 else {
 276                                         /* Reuse Memory Position on Caller Stack */
 277                                         var->vv.regoff = cd->stackframesize + s1;
 278                                 }
 279                         }
 280                 }
 281 #endif /* !defined(ENABLE_SOFTFLOAT) */
 282         }
 283
 284 #if defined(ENABLE_THREADS)
 285         /* call monitorenter function */
 286
 287         if (checksync && code_is_synchronized(code)) {
 288                 /* stack offset for monitor argument */
 289
 290                 s1 = rd->memuse * 8;
 291
 292 # if !defined(NDEBUG)
 293                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 294                         M_STMFD(BITMASK_ARGS, REG_SP);
 295                         s1 += 4 * 4;
 296                 }
 297 # endif
 298
 299                 /* get the correct lock object */
 300
 301                 if (m->flags & ACC_STATIC) {
 302                         disp = dseg_add_address(cd, &m->class->object.header);
 303                         M_DSEG_LOAD(REG_A0, disp);
 304                 }
 305                 else {
 306                         emit_nullpointer_check_force(cd, iptr, REG_A0);
 307                 }
 308
 309                 M_STR(REG_A0, REG_SP, s1);
 310                 disp = dseg_add_functionptr(cd, LOCK_monitor_enter);
 311                 M_DSEG_BRANCH(disp);
 312                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
 313                 M_RECOMPUTE_PV(s1);
 314
 315 # if !defined(NDEBUG)
 316                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
 317                         M_LDMFD(BITMASK_ARGS, REG_SP);
 318 # endif
 319         }
 320 #endif
 321
 322 #if !defined(NDEBUG)
 323         /* call trace function */
 324
 325         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
 326                 emit_verbosecall_enter(jd);
 327 #endif
 328
 329         /* end of header generation */
 330
 331         /* create replacement points */
 332         REPLACEMENT_POINTS_INIT(cd, jd);
 333
 334         /* SECTION: ICMD Code Generation */
 335         /* for all basic blocks */
 336
 337         for (bptr = jd->basicblocks; bptr != NULL; bptr = bptr->next) {
 338
 339                 bptr->mpc = (s4) (cd->mcodeptr - cd->mcodebase);
 340
 341                 /* is this basic block reached? */
 342
 343                 if (bptr->flags < BBREACHED)
 344                         continue;
 345
 346                 /* branch resolving */
 347
 348                 codegen_resolve_branchrefs(cd, bptr);
 349
 350                 /* handle replacement points */
 351                 REPLACEMENT_POINT_BLOCK_START(cd, bptr);
 352
 353                 /* copy interface registers to their destination */
 354
 355                 len = bptr->indepth;
 356
 357                 MCODECHECK(64+len);
 358
 359 #if defined(ENABLE_LSRA)
 360                 if (opt_lsra) {
 361                 while (len) {
 362                         len--;
 363                         var = VAR(bptr->invars[len]);
 364                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 365                                 if (!(var->flags & INMEMORY))
 366                                         d= var->vv.regoff;
 367                                 else
 368                                         d=REG_ITMP1;
 369                                 M_INTMOVE(REG_ITMP1, d);
 370                                 emit_store(jd, NULL, var, d);
 371                         }
 372                 }
 373                 } else {
 374 #endif
 375                 while (len) {
 376                         len--;
 377                         var = VAR(bptr->invars[len]);
 378
 379                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 380                                 d = codegen_reg_of_var(0, var, REG_ITMP1);
 381                                 M_INTMOVE(REG_ITMP1, d);
 382                                 emit_store(jd, NULL, var, d);
 383                         }
 384                         else {
 385                                 assert((var->flags & INOUT));
 386                         }
 387                 }
 388 #if defined(ENABLE_LSRA)
 389                 }
 390 #endif
 391
 392                 /* for all instructions */
 393                 len = bptr->icount;
 394                 currentline = 0;
 395                 for (iptr = bptr->iinstr; len > 0; len--, iptr++) {
 396
 397                         /* add line number */
 398                         if (iptr->line != currentline) {
 399                                 dseg_addlinenumber(cd, iptr->line);
 400                                 currentline = iptr->line;
 401                         }
 402
 403                         MCODECHECK(64);   /* an instruction usually needs < 64 words      */
 404
 405                         /* the big switch */
 406                         switch (iptr->opc) {
 407                 case ICMD_NOP:        /* ... ==> ...                                  */
 408                         break;
 409
 410         /* constant operations ************************************************/
 411
 412                 case ICMD_ICONST:     /* ...  ==> ..., constant                       */
 413
 414                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 415                         ICONST(d, iptr->sx.val.i);
 416                         emit_store_dst(jd, iptr, d);
 417                         break;
 418
 419                 case ICMD_ACONST:     /* ... ==> ..., constant                        */
 420
 421                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 422                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
 423                                 disp = dseg_add_unique_address(cd, NULL);
 424
 425                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
 426                                                     iptr->sx.val.c.ref, disp);
 427
 428                                 M_DSEG_LOAD(d, disp);
 429                         }
 430                         else {
 431                                 ICONST(d, (u4) iptr->sx.val.anyptr);
 432                         }
 433                         emit_store_dst(jd, iptr, d);
 434                         break;
 435
 436                 case ICMD_LCONST:     /* ...  ==> ..., constant                       */
 437
 438                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 439                         LCONST(d, iptr->sx.val.l);
 440                         emit_store_dst(jd, iptr, d);
 441                         break;
 442
 443                 case ICMD_FCONST:     /* ...  ==> ..., constant                       */
 444
 445 #if defined(ENABLE_SOFTFLOAT)
 446                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 447                         ICONST(d, iptr->sx.val.i);
 448                         emit_store_dst(jd, iptr, d);
 449 #else
 450                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 451                         FCONST(d, iptr->sx.val.f);
 452                         emit_store_dst(jd, iptr, d);
 453 #endif
 454                         break;
 455
 456                 case ICMD_DCONST:     /* ...  ==> ..., constant                       */
 457
 458 #if defined(ENABLE_SOFTFLOAT)
 459                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 460                         LCONST(d, iptr->sx.val.l);
 461                         emit_store_dst(jd, iptr, d);
 462 #else
 463                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 464                         DCONST(d, iptr->sx.val.d);
 465                         emit_store_dst(jd, iptr, d);
 466 #endif
 467                         break;
 468
 469
 470                 /* load/store/copy/move operations ************************************/
 471
 472                 case ICMD_ILOAD:      /* ...  ==> ..., content of local variable      */
 473                 case ICMD_ALOAD:      /* op1 = local variable                         */
 474                 case ICMD_FLOAD:
 475                 case ICMD_LLOAD:
 476                 case ICMD_DLOAD:
 477                 case ICMD_ISTORE:     /* ..., value  ==> ...                          */
 478                 case ICMD_FSTORE:
 479                 case ICMD_LSTORE:
 480                 case ICMD_DSTORE:
 481                 case ICMD_COPY:
 482                 case ICMD_MOVE:
 483
 484                         emit_copy(jd, iptr);
 485                         break;
 486
 487                 case ICMD_ASTORE:
 488                         if (!(iptr->flags.bits & INS_FLAG_RETADDR))
 489                                 emit_copy(jd, iptr);
 490                         break;
 491
 492                 /* pop operations *****************************************************/
 493
 494                 /* attention: double and longs are only one entry in CACAO ICMDs      */
 495
 496                 case ICMD_POP:        /* ..., value  ==> ...                          */
 497                 case ICMD_POP2:       /* ..., value, value  ==> ...                   */
 498
 499                         break;
 500
 501
 502                 /* integer operations *************************************************/
 503
 504                 case ICMD_INT2BYTE:   /* ..., value  ==> ..., value                   */
 505
 506                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 507                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 508                         M_MOV(d, REG_LSL(s1, 24));
 509                         M_MOV(d, REG_ASR(d, 24));
 510                         emit_store_dst(jd, iptr, d);
 511                         break;
 512
 513                 case ICMD_INT2CHAR:   /* ..., value  ==> ..., value                   */
 514
 515                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 516                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 517                         M_MOV(d, REG_LSL(s1, 16));
 518                         M_MOV(d, REG_LSR(d, 16)); /* ATTENTION: char is unsigned */
 519                         emit_store_dst(jd, iptr, d);
 520                         break;
 521
 522                 case ICMD_INT2SHORT:  /* ..., value  ==> ..., value                   */
 523
 524                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 525                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 526                         M_MOV(d, REG_LSL(s1, 16));
 527                         M_MOV(d, REG_ASR(d, 16));
 528                         emit_store_dst(jd, iptr, d);
 529                         break;
 530
 531                 case ICMD_I2L:        /* ..., value  ==> ..., value                   */
 532
 533                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 534                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 535                         M_INTMOVE(s1, GET_LOW_REG(d));
 536                         M_MOV(GET_HIGH_REG(d), REG_ASR(s1, 31));
 537                         emit_store_dst(jd, iptr, d);
 538                         break;
 539
 540                 case ICMD_L2I:        /* ..., value  ==> ..., value                   */
 541
 542                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 543                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 544                         M_INTMOVE(s1, d);
 545                         emit_store_dst(jd, iptr, d);
 546                         break;
 547
 548                 case ICMD_INEG:       /* ..., value  ==> ..., - value                 */
 549
 550                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 551                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 552                         M_RSB_IMM(d, s1, 0);
 553                         emit_store_dst(jd, iptr, d);
 554                         break;
 555
 556                 case ICMD_LNEG:       /* ..., value  ==> ..., - value                 */
 557
 558                         s1 = emit_load_s1(jd, iptr, REG_ITMP12_PACKED);
 559                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 560                         M_RSB_IMMS(GET_LOW_REG(d), GET_LOW_REG(s1), 0);
 561                         M_RSC_IMM(GET_HIGH_REG(d), GET_HIGH_REG(s1), 0);
 562                         emit_store_dst(jd, iptr, d);
 563                         break;
 564
 565                 case ICMD_IADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 566
 567                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 568                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 569                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 570                         M_ADD(d, s1, s2);
 571                         emit_store_dst(jd, iptr, d);
 572                         break;
 573
 574                 case ICMD_LADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 575
 576                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 577                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 578                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 579                         M_ADD_S(GET_LOW_REG(d), s1, s2);
 580                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 581                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 582                         M_ADC(GET_HIGH_REG(d), s1, s2);
 583                         emit_store_dst(jd, iptr, d);
 584                         break;
 585
 586                 case ICMD_IADDCONST:
 587                 case ICMD_IINC:
 588
 589                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 590                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 591
 592                         if (IS_IMM(iptr->sx.val.i)) {
 593                                 M_ADD_IMM(d, s1, iptr->sx.val.i);
 594                         } else if (IS_IMM(-iptr->sx.val.i)) {
 595                                 M_SUB_IMM(d, s1, (-iptr->sx.val.i));
 596                         } else {
 597                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 598                                 M_ADD(d, s1, REG_ITMP3);
 599                         }
 600
 601                         emit_store_dst(jd, iptr, d);
 602                         break;
 603
 604                 case ICMD_LADDCONST:  /* ..., value  ==> ..., value + constant        */
 605                                       /* sx.val.l = constant                          */
 606
 607                         s3 = iptr->sx.val.l & 0xffffffff;
 608                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 609                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 610                         if (IS_IMM(s3))
 611                                 M_ADD_IMMS(GET_LOW_REG(d), s1, s3);
 612                         else {
 613                                 ICONST(REG_ITMP3, s3);
 614                                 M_ADD_S(GET_LOW_REG(d), s1, REG_ITMP3);
 615                         }
 616                         s3 = iptr->sx.val.l >> 32;
 617                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP2);
 618                         if (IS_IMM(s3))
 619                                 M_ADC_IMM(GET_HIGH_REG(d), s1, s3);
 620                         else {
 621                                 ICONST(REG_ITMP3, s3);
 622                                 M_ADC(GET_HIGH_REG(d), s1, REG_ITMP3);
 623                         }
 624                         emit_store_dst(jd, iptr, d);
 625                         break;
 626
 627                 case ICMD_ISUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 628
 629                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 630                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 631                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 632                         M_SUB(d, s1, s2);
 633                         emit_store_dst(jd, iptr, d);
 634                         break;
 635
 636                 case ICMD_LSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 637
 638                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 639                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 640                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 641                         M_SUB_S(GET_LOW_REG(d), s1, s2);
 642                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 643                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 644                         M_SBC(GET_HIGH_REG(d), s1, s2);
 645                         emit_store_dst(jd, iptr, d);
 646                         break;
 647
 648                 case ICMD_ISUBCONST:  /* ..., value  ==> ..., value + constant        */
 649                                       /* sx.val.i = constant                          */
 650
 651                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 652                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 653                         if (IS_IMM(iptr->sx.val.i))
 654                                 M_SUB_IMM(d, s1, iptr->sx.val.i);
 655                         else {
 656                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 657                                 M_SUB(d, s1, REG_ITMP3);
 658                         }
 659                         emit_store_dst(jd, iptr, d);
 660                         break;
 661
 662                 case ICMD_LSUBCONST:  /* ..., value  ==> ..., value - constant        */
 663                                       /* sx.val.l = constant                          */
 664
 665                         s3 = iptr->sx.val.l & 0xffffffff;
 666                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 667                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 668                         if (IS_IMM(s3))
 669                                 M_SUB_IMMS(GET_LOW_REG(d), s1, s3);
 670                         else {
 671                                 ICONST(REG_ITMP3, s3);
 672                                 M_SUB_S(GET_LOW_REG(d), s1, REG_ITMP3);
 673                         }
 674                         s3 = iptr->sx.val.l >> 32;
 675                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP2);
 676                         if (IS_IMM(s3))
 677                                 M_SBC_IMM(GET_HIGH_REG(d), s1, s3);
 678                         else {
 679                                 ICONST(REG_ITMP3, s3);
 680                                 M_SBC(GET_HIGH_REG(d), s1, REG_ITMP3);
 681                         }
 682                         emit_store_dst(jd, iptr, d);
 683                         break;
 684
 685                 case ICMD_IMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 686
 687                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 688                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 689                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 690                         M_MUL(d, s1, s2);
 691                         emit_store_dst(jd, iptr, d);
 692                         break;
 693
 694                 case ICMD_IDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 695                 case ICMD_IREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 696
 697                         s1 = emit_load_s1(jd, iptr, REG_A0);
 698                         s2 = emit_load_s2(jd, iptr, REG_A1);
 699                         emit_arithmetic_check(cd, iptr, s2);
 700
 701                         /* move arguments into argument registers */
 702                         M_INTMOVE(s1, REG_A0);
 703                         M_INTMOVE(s2, REG_A1);
 704
 705                         /* call builtin function */
 706                         bte = iptr->sx.s23.s3.bte;
 707                         disp = dseg_add_functionptr(cd, bte->fp);
 708                         M_DSEG_BRANCH(disp);
 709
 710                         /* recompute pv */
 711                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
 712                         M_RECOMPUTE_PV(s1);
 713
 714                         /* move result into destination register */
 715                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
 716                         M_INTMOVE(REG_RESULT, d);
 717                         emit_store_dst(jd, iptr, d);
 718                         break;
 719
 720                 case ICMD_LDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 721                 case ICMD_LREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 722
 723                         /* move arguments into argument registers */
 724
 725                         s1 = emit_load_s1(jd, iptr, REG_A0_A1_PACKED);
 726                         s2 = emit_load_s2(jd, iptr, REG_A2_A3_PACKED);
 727                         /* XXX TODO: only do this if arithmetic check is really done! */
 728                         M_ORR(GET_HIGH_REG(s2), GET_LOW_REG(s2), REG_ITMP3);
 729                         emit_arithmetic_check(cd, iptr, REG_ITMP3);
 730
 731                         M_LNGMOVE(s1, REG_A0_A1_PACKED);
 732                         M_LNGMOVE(s2, REG_A2_A3_PACKED);
 733
 734                         /* call builtin function */
 735                         bte = iptr->sx.s23.s3.bte;
 736                         disp = dseg_add_functionptr(cd, bte->fp);
 737                         M_DSEG_BRANCH(disp);
 738
 739                         /* recompute pv */
 740                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
 741                         M_RECOMPUTE_PV(s1);
 742
 743                         /* move result into destination register */
 744                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
 745                         M_LNGMOVE(REG_RESULT_PACKED, d);
 746                         emit_store_dst(jd, iptr, d);
 747                         break;
 748
 749                 case ICMD_IMULPOW2:   /* ..., value  ==> ..., value * (2 ^ constant)  */
 750                                       /* sx.val.i = constant                          */
 751
 752                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 753                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 754                         M_MOV(d, REG_LSL(s1, iptr->sx.val.i));
 755                         emit_store_dst(jd, iptr, d);
 756                         break;
 757
 758                 case ICMD_IDIVPOW2:   /* ..., value  ==> ..., value / (2 ^ constant)  */
 759                                       /* sx.val.i = constant                          */
 760
 761                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 762                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 763                         /* this rounds towards 0 as java likes it */
 764                         M_MOV(REG_ITMP3, REG_ASR(s1, 31));
 765                         M_ADD(REG_ITMP3, s1, REG_LSR(REG_ITMP3, 32 - iptr->sx.val.i));
 766                         M_MOV(d, REG_ASR(REG_ITMP3, iptr->sx.val.i));
 767                         /* this rounds towards nearest, not java style */
 768                         /*M_MOV_S(d, REG_ASR(s1, iptr->sx.val.i));
 769                         M_ADCMI_IMM(d, d, 0);*/
 770                         emit_store_dst(jd, iptr, d);
 771                         break;
 772
 773                 case ICMD_IREMPOW2:   /* ..., value  ==> ..., value % constant        */
 774                                       /* sx.val.i = constant [ (2 ^ x) - 1 ]          */
 775
 776                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 777                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 778                         M_MOV_S(REG_ITMP1, s1);
 779                         M_RSBMI_IMM(REG_ITMP1, REG_ITMP1, 0);
 780                         if (IS_IMM(iptr->sx.val.i))
 781                                 M_AND_IMM(REG_ITMP1, iptr->sx.val.i, d);
 782                         else {
 783                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 784                                 M_AND(REG_ITMP1, REG_ITMP3, d);
 785                         }
 786                         M_RSBMI_IMM(d, d, 0);
 787                         emit_store_dst(jd, iptr, d);
 788                         break;
 789
 790                 case ICMD_ISHL:       /* ..., val1, val2  ==> ..., val1 << val2       */
 791
 792                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 793                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 794                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 795                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 796                         M_MOV(d, REG_LSL_REG(s1, REG_ITMP2));
 797                         emit_store_dst(jd, iptr, d);
 798                         break;
 799
 800                 case ICMD_ISHR:       /* ..., val1, val2  ==> ..., val1 >> val2       */
 801
 802                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 803                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 804                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 805                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 806                         M_MOV(d, REG_ASR_REG(s1, REG_ITMP2));
 807                         emit_store_dst(jd, iptr, d);
 808                         break;
 809
 810                 case ICMD_IUSHR:      /* ..., val1, val2  ==> ..., val1 >>> val2      */
 811
 812                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 813                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 814                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 815                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 816                         M_MOV(d, REG_LSR_REG(s1, REG_ITMP2));
 817                         emit_store_dst(jd, iptr, d);
 818                         break;
 819
 820                 case ICMD_ISHLCONST:  /* ..., value  ==> ..., value << constant       */
 821                                       /* sx.val.i = constant                          */
 822
 823                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 824                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 825                         M_MOV(d, REG_LSL(s1, iptr->sx.val.i & 0x1f));
 826                         emit_store_dst(jd, iptr, d);
 827                         break;
 828
 829                 case ICMD_ISHRCONST:  /* ..., value  ==> ..., value >> constant       */
 830                                       /* sx.val.i = constant                          */
 831
 832                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 833                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 834                         /* we need to check for zero here because arm interprets it as SHR by 32 */
 835                         if ((iptr->sx.val.i & 0x1f) == 0) {
 836                                 M_INTMOVE(s1, d);
 837                         } else {
 838                                 M_MOV(d, REG_ASR(s1, iptr->sx.val.i & 0x1f));
 839                         }
 840                         emit_store_dst(jd, iptr, d);
 841                         break;
 842
 843                 case ICMD_IUSHRCONST: /* ..., value  ==> ..., value >>> constant      */
 844                                       /* sx.val.i = constant                          */
 845
 846                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 847                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 848                         /* we need to check for zero here because arm interprets it as SHR by 32 */
 849                         if ((iptr->sx.val.i & 0x1f) == 0)
 850                                 M_INTMOVE(s1, d);
 851                         else
 852                                 M_MOV(d, REG_LSR(s1, iptr->sx.val.i & 0x1f));
 853                         emit_store_dst(jd, iptr, d);
 854                         break;
 855
 856                 case ICMD_IAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 857
 858                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 859                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 860                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 861                         M_AND(s1, s2, d);
 862                         emit_store_dst(jd, iptr, d);
 863                         break;
 864
 865                 case ICMD_LAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 866
 867                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 868                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 869                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 870                         M_AND(s1, s2, GET_LOW_REG(d));
 871                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 872                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 873                         M_AND(s1, s2, GET_HIGH_REG(d));
 874                         emit_store_dst(jd, iptr, d);
 875                         break;
 876
 877                 case ICMD_IOR:        /* ..., val1, val2  ==> ..., val1 | val2        */
 878
 879                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 880                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 881                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 882                         M_ORR(s1, s2, d);
 883                         emit_store_dst(jd, iptr, d);
 884                         break;
 885
 886                 case ICMD_LOR:       /* ..., val1, val2  ==> ..., val1 | val2        */
 887
 888                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 889                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 890                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 891                         M_ORR(s1, s2, GET_LOW_REG(d));
 892                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 893                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 894                         M_ORR(s1, s2, GET_HIGH_REG(d));
 895                         emit_store_dst(jd, iptr, d);
 896                         break;
 897
 898                 case ICMD_IXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
 899
 900                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 901                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 902                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 903                         M_EOR(s1, s2, d);
 904                         emit_store_dst(jd, iptr, d);
 905                         break;
 906
 907                 case ICMD_LXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
 908
 909                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 910                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 911                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 912                         M_EOR(s1, s2, GET_LOW_REG(d));
 913                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 914                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 915                         M_EOR(s1, s2, GET_HIGH_REG(d));
 916                         emit_store_dst(jd, iptr, d);
 917                         break;
 918
 919
 920         /* floating operations ************************************************/
 921
 922 #if !defined(ENABLE_SOFTFLOAT)
 923
 924                 case ICMD_FNEG:       /* ..., value  ==> ..., - value                 */
 925
 926                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 927                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 928                         M_FNEG(s1, d);
 929                         emit_store_dst(jd, iptr, d);
 930                         break;
 931
 932                 case ICMD_FADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 933
 934                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 935                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 936                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 937                         M_FADD(s1, s2, d);
 938                         emit_store_dst(jd, iptr, d);
 939                         break;
 940
 941                 case ICMD_FSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 942
 943                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 944                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 945                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 946                         M_FSUB(s1, s2, d);
 947                         emit_store_dst(jd, iptr, d);
 948                         break;
 949
 950                 case ICMD_FMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 951
 952                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 953                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 954                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 955                         M_FMUL(s1, s2, d);
 956                         emit_store_dst(jd, iptr, d);
 957                         break;
 958
 959                 case ICMD_FDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 960                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 961                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 962                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 963                         M_FDIV(s1, s2, d);
 964                         emit_store_dst(jd, iptr, d);
 965                         break;
 966
 967                 /* ATTENTION: Jave does not want IEEE behaviour in FREM, do
 968                    not use this */
 969
 970 #if 0
 971                 case ICMD_FREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 972
 973                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 974                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 975                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 976                         M_RMFS(d, s1, s2);
 977                         emit_store_dst(jd, iptr, d);
 978                         break;
 979 #endif
 980
 981                 case ICMD_DNEG:       /* ..., value  ==> ..., - value                 */
 982
 983                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 984                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 985                         M_DNEG(s1, d);
 986                         emit_store_dst(jd, iptr, d);
 987                         break;
 988
 989                 case ICMD_DADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 990
 991                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 992                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 993                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 994                         M_DADD(s1, s2, d);
 995                         emit_store_dst(jd, iptr, d);
 996                         break;
 997
 998                 case ICMD_DSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 999
1000                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1001                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1002                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1003                         M_DSUB(s1, s2, d);
1004                         emit_store_dst(jd, iptr, d);
1005                         break;
1006
1007                 case ICMD_DMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1008
1009                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1010                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1011                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1012                         M_DMUL(s1, s2, d);
1013                         emit_store_dst(jd, iptr, d);
1014                         break;
1015
1016                 case ICMD_DDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1017
1018                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1019                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1020                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1021                         M_DDIV(s1, s2, d);
1022                         emit_store_dst(jd, iptr, d);
1023                         break;
1024
1025                 /* ATTENTION: Jave does not want IEEE behaviour in DREM, do
1026                    not use this */
1027
1028 #if 0
1029                 case ICMD_DREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
1030
1031                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1032                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1033                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1034                         M_RMFD(d, s1, s2);
1035                         emit_store_dst(jd, iptr, d);
1036                         break;
1037 #endif
1038
1039                 case ICMD_I2F:       /* ..., value  ==> ..., (float) value            */
1040
1041                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1042                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1043                         M_CVTIF(s1, d);
1044                         emit_store_dst(jd, iptr, d);
1045                         break;
1046
1047                 case ICMD_I2D:       /* ..., value  ==> ..., (double) value           */
1048
1049                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1050                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1051                         M_CVTID(s1, d);
1052                         emit_store_dst(jd, iptr, d);
1053                         break;
1054
1055                 case ICMD_F2I:       /* ..., value  ==> ..., (int) value              */
1056
1057                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1058                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1059                         /* this uses round towards zero, as Java likes it */
1060                         M_CVTFI(s1, d);
1061 #if !defined(__VFP_FP__)
1062                         /* this checks for NaN; to return zero as Java likes it */
1063                         M_FCMP(s1, 0x8);
1064                         M_MOVVS_IMM(0, d);
1065 #endif
1066                         emit_store_dst(jd, iptr, d);
1067                         break;
1068
1069                 case ICMD_D2I:       /* ..., value  ==> ..., (int) value              */
1070
1071                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1072                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1073                         /* this uses round towards zero, as Java likes it */
1074                         M_CVTDI(s1, d);
1075 #if !defined(__VFP_FP__)
1076                         /* this checks for NaN; to return zero as Java likes it */
1077                         M_DCMP(s1, 0x8);
1078                         M_MOVVS_IMM(0, d);
1079 #endif
1080                         emit_store_dst(jd, iptr, d);
1081                         break;
1082
1083                 case ICMD_D2F:       /* ..., value  ==> ..., (float) value            */
1084
1085                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1086                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1087                         M_CVTDF(s1, d);
1088                         emit_store_dst(jd, iptr, d);
1089                         break;
1090
1091                 case ICMD_F2D:       /* ..., value  ==> ..., (double) value           */
1092
1093                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1094                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1095                         M_CVTFD(s1, d);
1096                         emit_store_dst(jd, iptr, d);
1097                         break;
1098
1099                 case ICMD_FCMPG:      /* ..., val1, val2  ==> ..., val1 fcmpg val2    */
1100
1101                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1102                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1103                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1104                         M_FCMP(s2, s1);
1105                         M_MOV_IMM(d, 0);
1106 #if defined(__VFP_FP__)
1107                         M_FMSTAT; /* on VFP we need to transfer the flags */
1108 #endif
1109                         M_SUBGT_IMM(d, d, 1);
1110                         M_ADDLT_IMM(d, d, 1);
1111                         emit_store_dst(jd, iptr, d);
1112                         break;
1113
1114                 case ICMD_DCMPG:      /* ..., val1, val2  ==> ..., val1 dcmpg val2    */
1115
1116                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1117                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1118                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1119                         M_DCMP(s2, s1);
1120                         M_MOV_IMM(d, 0);
1121 #if defined(__VFP_FP__)
1122                         M_FMSTAT; /* on VFP we need to transfer the flags */
1123 #endif
1124                         M_SUBGT_IMM(d, d, 1);
1125                         M_ADDLT_IMM(d, d, 1);
1126                         emit_store_dst(jd, iptr, d);
1127                         break;
1128
1129                 case ICMD_FCMPL:      /* ..., val1, val2  ==> ..., val1 fcmpl val2    */
1130
1131                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1132                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1133                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1134                         M_FCMP(s1, s2);
1135                         M_MOV_IMM(d, 0);
1136 #if defined(__VFP_FP__)
1137                         M_FMSTAT; /* on VFP we need to transfer the flags */
1138 #endif
1139                         M_SUBLT_IMM(d, d, 1);
1140                         M_ADDGT_IMM(d, d, 1);
1141                         emit_store_dst(jd, iptr, d);
1142                         break;
1143
1144                 case ICMD_DCMPL:      /* ..., val1, val2  ==> ..., val1 dcmpl val2    */
1145
1146                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1147                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1148                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1149                         M_DCMP(s1, s2);
1150                         M_MOV_IMM(d, 0);
1151 #if defined(__VFP_FP__)
1152                         M_FMSTAT; /* on VFP we need to transfer the flags */
1153 #endif
1154                         M_SUBLT_IMM(d, d, 1);
1155                         M_ADDGT_IMM(d, d, 1);
1156                         emit_store_dst(jd, iptr, d);
1157                         break;
1158
1159 #endif /* !defined(ENABLE_SOFTFLOAT) */
1160
1161
1162                 /* memory operations **************************************************/
1163
1164                 case ICMD_ARRAYLENGTH: /* ..., arrayref  ==> ..., length              */
1165
1166                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1167                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1168                         /* implicit null-pointer check */
1169                         M_ILD_INTERN(d, s1, OFFSET(java_array_t, size));
1170                         emit_store_dst(jd, iptr, d);
1171                         break;
1172
1173                 case ICMD_BALOAD:     /* ..., arrayref, index  ==> ..., value         */
1174
1175                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1176                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1177                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1178                         /* implicit null-pointer check */
1179                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1180                         M_ADD(REG_ITMP1, s1, s2); /* REG_ITMP1 = s1 + 1 * s2 */
1181                         M_LDRSB(d, REG_ITMP1, OFFSET(java_bytearray_t, data[0]));
1182                         emit_store_dst(jd, iptr, d);
1183                         break;
1184
1185                 case ICMD_CALOAD:     /* ..., arrayref, index  ==> ..., value         */
1186
1187                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1188                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1189                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1190                         /* implicit null-pointer check */
1191                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1192                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1193                         M_LDRH(d, REG_ITMP1, OFFSET(java_chararray_t, data[0]));
1194                         emit_store_dst(jd, iptr, d);
1195                         break;
1196
1197                 case ICMD_SALOAD:     /* ..., arrayref, index  ==> ..., value         */
1198
1199                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1200                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1201                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1202                         /* implicit null-pointer check */
1203                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1204                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1205                         M_LDRSH(d, REG_ITMP1, OFFSET(java_shortarray_t, data[0]));
1206                         emit_store_dst(jd, iptr, d);
1207                         break;
1208
1209                 case ICMD_IALOAD:     /* ..., arrayref, index  ==> ..., value         */
1210
1211                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1212                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1213                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1214                         /* implicit null-pointer check */
1215                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1216                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1217                         M_ILD_INTERN(d, REG_ITMP1, OFFSET(java_intarray_t, data[0]));
1218                         emit_store_dst(jd, iptr, d);
1219                         break;
1220
1221                 case ICMD_LALOAD:     /* ..., arrayref, index  ==> ..., value         */
1222
1223                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1224                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1225                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1226                         /* implicit null-pointer check */
1227                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1228                         M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1229                         M_LLD_INTERN(d, REG_ITMP3, OFFSET(java_longarray_t, data[0]));
1230                         emit_store_dst(jd, iptr, d);
1231                         break;
1232
1233                 case ICMD_FALOAD:     /* ..., arrayref, index  ==> ..., value         */
1234
1235                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1236                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1237                         /* implicit null-pointer check */
1238                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1239                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1240 #if !defined(ENABLE_SOFTFLOAT)
1241                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1242                         M_FLD_INTERN(d, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1243 #else
1244                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1245                         M_ILD_INTERN(d, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1246 #endif
1247                         emit_store_dst(jd, iptr, d);
1248                         break;
1249
1250                 case ICMD_DALOAD:     /* ..., arrayref, index  ==> ..., value         */
1251
1252                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1253                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1254                         /* implicit null-pointer check */
1255                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1256                         M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1257 #if !defined(ENABLE_SOFTFLOAT)
1258                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1259                         M_DLD_INTERN(d, REG_ITMP3, OFFSET(java_doublearray_t, data[0]));
1260 #else
1261                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1262                         M_LLD_INTERN(d, REG_ITMP3, OFFSET(java_doublearray_t, data[0]));
1263 #endif
1264                         emit_store_dst(jd, iptr, d);
1265                         break;
1266
1267                 case ICMD_AALOAD:     /* ..., arrayref, index  ==> ..., value         */
1268
1269                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1270                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1271                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1272                         /* implicit null-pointer check */
1273                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1274                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1275                         M_LDR_INTERN(d, REG_ITMP1, OFFSET(java_objectarray_t, data[0]));
1276                         emit_store_dst(jd, iptr, d);
1277                         break;
1278
1279                 case ICMD_BASTORE:    /* ..., arrayref, index, value  ==> ...         */
1280
1281                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1282                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1283                         /* implicit null-pointer check */
1284                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1285                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1286                         M_ADD(REG_ITMP1, s1, s2); /* REG_ITMP1 = s1 + 1 * s2 */
1287                         M_STRB(s3, REG_ITMP1, OFFSET(java_bytearray_t, data[0]));
1288                         break;
1289
1290                 case ICMD_CASTORE:    /* ..., arrayref, index, value  ==> ...         */
1291
1292                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1293                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1294                         /* implicit null-pointer check */
1295                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1296                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1297                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1298                         M_STRH(s3, REG_ITMP1, OFFSET(java_chararray_t, data[0]));
1299                         break;
1300
1301                 case ICMD_SASTORE:    /* ..., arrayref, index, value  ==> ...         */
1302
1303                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1304                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1305                         /* implicit null-pointer check */
1306                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1307                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1308                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1309                         M_STRH(s3, REG_ITMP1, OFFSET(java_shortarray_t, data[0]));
1310                         break;
1311
1312                 case ICMD_IASTORE:    /* ..., arrayref, index, value  ==> ...         */
1313
1314                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1315                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1316                         /* implicit null-pointer check */
1317                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1318                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1319                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1320                         M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_intarray_t, data[0]));
1321                         break;
1322
1323                 case ICMD_LASTORE:    /* ..., arrayref, index, value  ==> ...         */
1324
1325                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1326                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1327                         /* implicit null-pointer check */
1328                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1329                         M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1330                         s3 = emit_load_s3(jd, iptr, REG_ITMP12_PACKED);
1331                         M_LST_INTERN(s3, REG_ITMP3, OFFSET(java_longarray_t, data[0]));
1332                         break;
1333
1334                 case ICMD_FASTORE:    /* ..., arrayref, index, value  ==> ...         */
1335
1336                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1337                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1338                         /* implicit null-pointer check */
1339                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1340                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1341 #if !defined(ENABLE_SOFTFLOAT)
1342                         s3 = emit_load_s3(jd, iptr, REG_FTMP1);
1343                         M_FST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1344 #else
1345                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1346                         M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
1347 #endif
1348                         break;
1349
1350                 case ICMD_DASTORE:    /* ..., arrayref, index, value  ==> ...         */
1351
1352                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1353                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1354                         /* implicit null-pointer check */
1355                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1356                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 3)); /* REG_ITMP1 = s1 + 8 * s2 */
1357 #if !defined(ENABLE_SOFTFLOAT)
1358                         s3 = emit_load_s3(jd, iptr, REG_FTMP1);
1359                         M_DST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray_t, data[0]));
1360 #else
1361                         s3 = emit_load_s3(jd, iptr, REG_ITMP23_PACKED);
1362                         M_LST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray_t, data[0]));
1363 #endif
1364                         break;
1365
1366                 case ICMD_AASTORE:    /* ..., arrayref, index, value  ==> ...         */
1367
1368                         s1 = emit_load_s1(jd, iptr, REG_A0);
1369                         s2 = emit_load_s2(jd, iptr, REG_ITMP1);
1370                         s3 = emit_load_s3(jd, iptr, REG_A1);
1371
1372                         /* implicit null-pointer check */
1373                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1374
1375                         /* move arguments to argument registers */
1376                         M_INTMOVE(s1, REG_A0);
1377                         M_INTMOVE(s3, REG_A1);
1378
1379                         /* call builtin function */
1380                         disp = dseg_add_functionptr(cd, BUILTIN_FAST_canstore);
1381                         M_DSEG_BRANCH(disp);
1382
1383                         /* recompute pv */
1384                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
1385                         M_RECOMPUTE_PV(s1);
1386
1387                         /* check resturn value of builtin */
1388                         emit_arraystore_check(cd, iptr);
1389
1390                         /* finally store address into array */
1391                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1392                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1393                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1394                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1395                         M_STR_INTERN(s3, REG_ITMP1, OFFSET(java_objectarray_t, data[0]));
1396                         break;
1397
1398                 case ICMD_GETSTATIC:  /* ...  ==> ..., value                          */
1399
1400                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1401                                 uf        = iptr->sx.s23.s3.uf;
1402                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1403                                 disp      = dseg_add_unique_address(cd, NULL);
1404
1405                                 patcher_add_patch_ref(jd, PATCHER_get_putstatic, uf, disp);
1406                         }
1407                         else {
1408                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1409                                 fieldtype = fi->type;
1410                                 disp      = dseg_add_address(cd, fi->value);
1411
1412                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1413                                         patcher_add_patch_ref(jd, PATCHER_initialize_class,
1414                                                             fi->class, 0);
1415                                 }
1416                         }
1417
1418                         M_DSEG_LOAD(REG_ITMP3, disp);
1419                         switch (fieldtype) {
1420                         case TYPE_INT:
1421 #if defined(ENABLE_SOFTFLOAT)
1422                         case TYPE_FLT:
1423 #endif
1424                         case TYPE_ADR:
1425                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1426                                 M_ILD_INTERN(d, REG_ITMP3, 0);
1427                                 break;
1428                         case TYPE_LNG:
1429 #if defined(ENABLE_SOFTFLOAT)
1430                         case TYPE_DBL:
1431 #endif
1432                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1433                                 M_LLD_INTERN(d, REG_ITMP3, 0);
1434                                 break;
1435 #if !defined(ENABLE_SOFTFLOAT)
1436                         case TYPE_FLT:
1437                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1438                                 M_FLD_INTERN(d, REG_ITMP3, 0);
1439                                 break;
1440                         case TYPE_DBL:
1441                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1442                                 M_DLD_INTERN(d, REG_ITMP3, 0);
1443                                 break;
1444 #endif
1445                         default:
1446                                 assert(0);
1447                         }
1448                         emit_store_dst(jd, iptr, d);
1449                         break;
1450
1451                 case ICMD_PUTSTATIC:  /* ..., value  ==> ...                          */
1452
1453                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1454                                 uf        = iptr->sx.s23.s3.uf;
1455                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1456                                 disp      = dseg_add_unique_address(cd, NULL);
1457
1458                                 patcher_add_patch_ref(jd, PATCHER_get_putstatic, uf, disp);
1459                         }
1460                         else {
1461                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1462                                 fieldtype = fi->type;
1463                                 disp      = dseg_add_address(cd, fi->value);
1464
1465                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1466                                         patcher_add_patch_ref(jd, PATCHER_initialize_class,
1467                                                             fi->class, 0);
1468                                 }
1469                         }
1470
1471                         M_DSEG_LOAD(REG_ITMP3, disp);
1472                         switch (fieldtype) {
1473                         case TYPE_INT:
1474 #if defined(ENABLE_SOFTFLOAT)
1475                         case TYPE_FLT:
1476 #endif
1477                         case TYPE_ADR:
1478                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1479                                 M_IST_INTERN(s1, REG_ITMP3, 0);
1480                                 break;
1481                         case TYPE_LNG:
1482 #if defined(ENABLE_SOFTFLOAT)
1483                         case TYPE_DBL:
1484 #endif
1485                                 s1 = emit_load_s1(jd, iptr, REG_ITMP12_PACKED);
1486                                 M_LST_INTERN(s1, REG_ITMP3, 0);
1487                                 break;
1488 #if !defined(ENABLE_SOFTFLOAT)
1489                         case TYPE_FLT:
1490                                 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1491                                 M_FST_INTERN(s1, REG_ITMP3, 0);
1492                                 break;
1493                         case TYPE_DBL:
1494                                 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1495                                 M_DST_INTERN(s1, REG_ITMP3, 0);
1496                                 break;
1497 #endif
1498                         default:
1499                                 assert(0);
1500                         }
1501                         break;
1502
1503                 case ICMD_GETFIELD:   /* ..., objectref, value  ==> ...               */
1504
1505                         s1 = emit_load_s1(jd, iptr, REG_ITMP3);
1506                         emit_nullpointer_check(cd, iptr, s1);
1507
1508
1509                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1510                                 uf        = iptr->sx.s23.s3.uf;
1511                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1512                                 disp      = 0;
1513                         }
1514                         else {
1515                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1516                                 fieldtype = fi->type;
1517                                 disp      = fi->offset;
1518                         }
1519
1520 #if !defined(ENABLE_SOFTFLOAT)
1521                         /* HACK: softnull checks on floats */
1522                         if (!INSTRUCTION_MUST_CHECK(iptr) && IS_FLT_DBL_TYPE(fieldtype))
1523                                 emit_nullpointer_check_force(cd, iptr, s1);
1524 #endif
1525
1526                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1527                                 /* XXX REMOVE ME */
1528                                 uf = iptr->sx.s23.s3.uf;
1529
1530                                 patcher_add_patch_ref(jd, PATCHER_get_putfield, uf, 0);
1531                         }
1532
1533                         switch (fieldtype) {
1534                         case TYPE_INT:
1535 #if defined(ENABLE_SOFTFLOAT)
1536                         case TYPE_FLT:
1537 #endif
1538                         case TYPE_ADR:
1539                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1540                                 M_ILD(d, s1, disp);
1541                                 break;
1542                         case TYPE_LNG:
1543 #if defined(ENABLE_SOFTFLOAT)
1544                         case TYPE_DBL:
1545 #endif
1546                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1547                                 M_LLD(d, s1, disp);
1548                                 break;
1549 #if !defined(ENABLE_SOFTFLOAT)
1550                         case TYPE_FLT:
1551                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1552                                 M_FLD(d, s1, disp);
1553                                 break;
1554                         case TYPE_DBL:
1555                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1556                                 M_DLD(d, s1, disp);
1557                                 break;
1558 #endif
1559                         default:
1560                                 assert(0);
1561                         }
1562                         emit_store_dst(jd, iptr, d);
1563                         break;
1564
1565                 case ICMD_PUTFIELD:   /* ..., objectref, value  ==> ...               */
1566
1567                         s1 = emit_load_s1(jd, iptr, REG_ITMP3);
1568                         emit_nullpointer_check(cd, iptr, s1);
1569
1570                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1571                                 uf        = iptr->sx.s23.s3.uf;
1572                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1573                                 disp      = 0;
1574                         }
1575                         else {
1576                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1577                                 fieldtype = fi->type;
1578                                 disp      = fi->offset;
1579                         }
1580
1581 #if !defined(ENABLE_SOFTFLOAT)
1582                         /* HACK: softnull checks on floats */
1583                         if (!INSTRUCTION_MUST_CHECK(iptr) && IS_FLT_DBL_TYPE(fieldtype))
1584                                 emit_nullpointer_check_force(cd, iptr, s1);
1585 #endif
1586
1587                         switch (fieldtype) {
1588                         case TYPE_INT:
1589 #if defined(ENABLE_SOFTFLOAT)
1590                         case TYPE_FLT:
1591 #endif
1592                         case TYPE_ADR:
1593                                 s2 = emit_load_s2(jd, iptr, REG_ITMP1);
1594                                 break;
1595 #if defined(ENABLE_SOFTFLOAT)
1596                         case TYPE_DBL: /* fall through */
1597 #endif
1598                         case TYPE_LNG:
1599                                 s2 = emit_load_s2(jd, iptr, REG_ITMP12_PACKED);
1600                                 break;
1601 #if !defined(ENABLE_SOFTFLOAT)
1602                         case TYPE_FLT:
1603                         case TYPE_DBL:
1604                                 s2 = emit_load_s2(jd, iptr, REG_FTMP1);
1605                                 break;
1606 #endif
1607                         default:
1608                                 assert(0);
1609                         }
1610
1611                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1612                                 /* XXX REMOVE ME */
1613                                 uf = iptr->sx.s23.s3.uf;
1614
1615                                 patcher_add_patch_ref(jd, PATCHER_get_putfield, uf, 0);
1616                         }
1617
1618                         switch (fieldtype) {
1619                         case TYPE_INT:
1620 #if defined(ENABLE_SOFTFLOAT)
1621                         case TYPE_FLT:
1622 #endif
1623                         case TYPE_ADR:
1624                                 M_IST(s2, s1, disp);
1625                                 break;
1626                         case TYPE_LNG:
1627 #if defined(ENABLE_SOFTFLOAT)
1628                         case TYPE_DBL:
1629 #endif
1630                                 M_LST(s2, s1, disp);
1631                                 break;
1632 #if !defined(ENABLE_SOFTFLOAT)
1633                         case TYPE_FLT:
1634                                 M_FST(s2, s1, disp);
1635                                 break;
1636                         case TYPE_DBL:
1637                                 M_DST(s2, s1, disp);
1638                                 break;
1639 #endif
1640                         default:
1641                                 assert(0);
1642                         }
1643                         break;
1644
1645
1646                 /* branch operations **************************************************/
1647
1648                 case ICMD_ATHROW:       /* ..., objectref ==> ... (, objectref)       */
1649
1650                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1651                         M_INTMOVE(s1, REG_ITMP1_XPTR);
1652                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1653                                 patcher_add_patch_ref(jd, PATCHER_resolve_class,
1654                                                                         iptr->sx.s23.s2.uc, 0);
1655                         }
1656                         disp = dseg_add_functionptr(cd, asm_handle_exception);
1657                         M_DSEG_LOAD(REG_ITMP3, disp);
1658                         M_MOV(REG_ITMP2_XPC, REG_PC);
1659                         M_MOV(REG_PC, REG_ITMP3);
1660                         M_NOP;              /* nop ensures that XPC is less than the end  */
1661                                             /* of basic block                             */
1662                         break;
1663
1664                 case ICMD_GOTO:         /* ... ==> ...                                */
1665                 case ICMD_RET:
1666
1667                         emit_br(cd, iptr->dst.block);
1668                         break;
1669
1670                 case ICMD_JSR:          /* ... ==> ...                                */
1671
1672                         emit_br(cd, iptr->sx.s23.s3.jsrtarget.block);
1673                         break;
1674
1675                 case ICMD_IFNULL:       /* ..., value ==> ...                         */
1676                 case ICMD_IFNONNULL:
1677
1678                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1679                         M_TEQ_IMM(s1, 0);
1680                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFNULL, BRANCH_OPT_NONE);
1681                         break;
1682
1683                 case ICMD_IFLT:         /* ..., value ==> ...                         */
1684                 case ICMD_IFLE:         /* op1 = target JavaVM pc, val.i = constant   */
1685                 case ICMD_IFGT:
1686                 case ICMD_IFGE:
1687                 case ICMD_IFEQ:
1688                 case ICMD_IFNE:
1689
1690                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1691                         M_COMPARE(s1, iptr->sx.val.i);
1692                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFEQ, BRANCH_OPT_NONE);
1693                         break;
1694
1695                 case ICMD_IF_LEQ:       /* ..., value ==> ...                         */
1696
1697                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1698                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1699                         if (iptr->sx.val.l == 0) {
1700                                 M_ORR_S(s1, s2, REG_ITMP3);
1701                         }
1702                         else {
1703                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1704                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1705                                 M_CMP(s1, REG_ITMP3);*/
1706                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1707                                 M_CMPEQ(s2, REG_ITMP3);
1708                         }
1709                         emit_beq(cd, iptr->dst.block);
1710                         break;
1711
1712                 case ICMD_IF_LLT:       /* ..., value ==> ...                         */
1713
1714                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1715                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1716                         if (iptr->sx.val.l == 0) {
1717                                 /* if high word is less than zero, the whole long is too */
1718                                 M_CMP_IMM(s1, 0);
1719                                 emit_blt(cd, iptr->dst.block);
1720                         }
1721                         else {
1722                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1723                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1724                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1725                                 M_CMP(s1, REG_ITMP3);*/
1726                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1727                                 M_MOVGT_IMM(2, REG_ITMP1);
1728                                 M_MOVEQ_IMM(1, REG_ITMP1);
1729
1730                                 /* low compare: x=x-1(ifLO) */
1731                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1732                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1733                                 M_CMP(s2, REG_ITMP3);*/
1734                                 M_SUBLO_IMM(REG_ITMP1, REG_ITMP1, 1);
1735
1736                                 /* branch if (x LT 1) */
1737                                 M_CMP_IMM(REG_ITMP1, 1);
1738                                 emit_blt(cd, iptr->dst.block);
1739                         }
1740                         break;
1741
1742                 case ICMD_IF_LLE:       /* ..., value ==> ...                         */
1743
1744                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1745                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1746                         if (iptr->sx.val.l == 0) {
1747                                 /* if high word is less than zero, the whole long is too  */
1748                                 M_CMP_IMM(s1, 0);
1749                                 emit_blt(cd, iptr->dst.block);
1750
1751                                 /* ... otherwise the low word has to be zero (tricky!) */
1752                                 M_CMPEQ_IMM(s2, 0);
1753                                 emit_beq(cd, iptr->dst.block);
1754                         }
1755                         else {
1756                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1757                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1758                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1759                                 M_CMP(s1, REG_ITMP3);*/
1760                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1761                                 M_MOVGT_IMM(2, REG_ITMP1);
1762                                 M_MOVEQ_IMM(1, REG_ITMP1);
1763
1764                                 /* low compare: x=x+1(ifHI) */
1765                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1766                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1767                                 M_CMP(s2, REG_ITMP3);*/
1768                                 M_ADDHI_IMM(REG_ITMP1, REG_ITMP1, 1);
1769
1770                                 /* branch if (x LE 1) */
1771                                 M_CMP_IMM(REG_ITMP1, 1);
1772                                 emit_ble(cd, iptr->dst.block);
1773                         }
1774                         break;
1775
1776                 case ICMD_IF_LGE:       /* ..., value ==> ...                         */
1777
1778                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1779                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1780                         if (iptr->sx.val.l == 0) {
1781                                 /* if high word is greater or equal zero, the whole long is too */
1782                                 M_CMP_IMM(s1, 0);
1783                                 emit_bge(cd, iptr->dst.block);
1784                         }
1785                         else {
1786                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1787                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1788                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1789                                 M_CMP(s1, REG_ITMP3);*/
1790                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1791                                 M_MOVGT_IMM(2, REG_ITMP1);
1792                                 M_MOVEQ_IMM(1, REG_ITMP1);
1793
1794                                 /* low compare: x=x-1(ifLO) */
1795                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1796                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1797                                 M_CMP(s2, REG_ITMP3);*/
1798                                 M_SUBLO_IMM(REG_ITMP1, REG_ITMP1, 1);
1799
1800                                 /* branch if (x GE 1) */
1801                                 M_CMP_IMM(REG_ITMP1, 1);
1802                                 emit_bge(cd, iptr->dst.block);
1803                         }
1804                         break;
1805
1806                 case ICMD_IF_LGT:       /* ..., value ==> ...                         */
1807
1808                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1809                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1810 #if 0
1811                         if (iptr->sx.val.l == 0) {
1812                                 /* if high word is greater than zero, the whole long is too */
1813                                 M_CMP_IMM(s1, 0);
1814                                 M_BGT(0);
1815                                 codegen_add_branch_ref(cd, iptr->dst.block);
1816
1817                                 /* ... or high was zero and low is non zero (tricky!) */
1818                                 M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1819                                 M_MOVLT_IMM(1, REG_ITMP3);
1820                                 M_ORR_S(REG_ITMP3, s2, REG_ITMP3);
1821                                 M_BNE(0);
1822                                 codegen_add_branch_ref(cd, iptr->dst.block);
1823                         }
1824                         else {
1825 #endif
1826                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1827                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1828                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1829                                 M_CMP(s1, REG_ITMP3);*/
1830                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1831                                 M_MOVGT_IMM(2, REG_ITMP1);
1832                                 M_MOVEQ_IMM(1, REG_ITMP1);
1833
1834                                 /* low compare: x=x+1(ifHI) */
1835                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1836                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1837                                 M_CMP(s2, REG_ITMP3);*/
1838                                 M_ADDHI_IMM(REG_ITMP1, REG_ITMP1, 1);
1839
1840                                 /* branch if (x GT 1) */
1841                                 M_CMP_IMM(REG_ITMP1, 1);
1842                                 emit_bgt(cd, iptr->dst.block);
1843 #if 0
1844                         }
1845 #endif
1846                         break;
1847
1848                 case ICMD_IF_LNE:       /* ..., value ==> ...                         */
1849
1850                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1851                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1852                         if (iptr->sx.val.l == 0) {
1853                                 M_ORR_S(s1, s2, REG_ITMP3);
1854                         }
1855                         else {
1856                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1857                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1858                                 M_CMP(s1, REG_ITMP3);*/
1859                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1860                                 M_CMPEQ(s2, REG_ITMP3);
1861                         }
1862                         emit_bne(cd, iptr->dst.block);
1863                         break;
1864
1865                 case ICMD_IF_ICMPEQ:    /* ..., value, value ==> ...                  */
1866                 case ICMD_IF_ICMPNE:
1867                 case ICMD_IF_ICMPLT:
1868                 case ICMD_IF_ICMPLE:
1869                 case ICMD_IF_ICMPGT:
1870                 case ICMD_IF_ICMPGE:
1871
1872                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1873                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1874                         M_CMP(s1, s2);
1875                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IF_ICMPEQ, BRANCH_OPT_NONE);
1876                         break;
1877
1878                 case ICMD_IF_ACMPEQ:    /* ..., value, value ==> ...                  */
1879                 case ICMD_IF_ACMPNE:
1880
1881                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1882                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1883                         M_CMP(s1, s2);
1884                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IF_ACMPEQ, BRANCH_OPT_NONE);
1885                         break;
1886
1887                 case ICMD_IF_LCMPEQ:    /* ..., value, value ==> ...                  */
1888                                         /* op1 = target JavaVM pc                     */
1889
1890                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1891                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1892                         M_CMP(s1, s2);
1893
1894                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1895                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1896                         M_CMPEQ(s1, s2);
1897
1898                         emit_beq(cd, iptr->dst.block);
1899                         break;
1900
1901                 case ICMD_IF_LCMPNE:    /* ..., value, value ==> ...                  */
1902                                         /* op1 = target JavaVM pc                     */
1903
1904                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1905                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1906                         M_CMP(s1, s2);
1907
1908                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1909                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1910                         M_CMPEQ(s1, s2);
1911
1912                         emit_bne(cd, iptr->dst.block);
1913                         break;
1914
1915                 case ICMD_IF_LCMPLT:    /* ..., value, value ==> ...                  */
1916                                         /* op1 = target JavaVM pc                     */
1917
1918                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1919                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1920                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1921                         M_CMP(s1, s2);
1922                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1923                         M_MOVGT_IMM(2, REG_ITMP3);
1924                         M_MOVEQ_IMM(1, REG_ITMP3);
1925
1926                         /* low compare: x=x-1(ifLO) */
1927                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1928                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1929                         M_CMP(s1, s2);
1930                         M_SUBLO_IMM(REG_ITMP3, REG_ITMP3, 1);
1931
1932                         /* branch if (x LT 1) */
1933                         M_CMP_IMM(REG_ITMP3, 1);
1934                         emit_blt(cd, iptr->dst.block);
1935                         break;
1936
1937                 case ICMD_IF_LCMPLE:    /* ..., value, value ==> ...                  */
1938                                         /* op1 = target JavaVM pc                     */
1939
1940                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1941                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1942                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1943                         M_CMP(s1, s2);
1944                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1945                         M_MOVGT_IMM(2, REG_ITMP3);
1946                         M_MOVEQ_IMM(1, REG_ITMP3);
1947
1948                         /* low compare: x=x-1(ifLO) */
1949                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1950                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1951                         M_CMP(s1, s2);
1952                         M_ADDHI_IMM(REG_ITMP3, REG_ITMP3, 1);
1953
1954                         /* branch if (x LE 1) */
1955                         M_CMP_IMM(REG_ITMP3, 1);
1956                         emit_ble(cd, iptr->dst.block);
1957                         break;
1958
1959                 case ICMD_IF_LCMPGT:    /* ..., value, value ==> ...                  */
1960                                         /* op1 = target JavaVM pc                     */
1961
1962                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1963                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1964                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1965                         M_CMP(s1, s2);
1966                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1967                         M_MOVGT_IMM(2, REG_ITMP3);
1968                         M_MOVEQ_IMM(1, REG_ITMP3);
1969
1970                         /* low compare: x=x-1(ifLO) */
1971                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1972                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1973                         M_CMP(s1, s2);
1974                         M_ADDHI_IMM(REG_ITMP3, REG_ITMP3, 1);
1975
1976                         /* branch if (x GT 1) */
1977                         M_CMP_IMM(REG_ITMP3, 1);
1978                         emit_bgt(cd, iptr->dst.block);
1979                         break;
1980
1981                 case ICMD_IF_LCMPGE:    /* ..., value, value ==> ...                  */
1982                                         /* op1 = target JavaVM pc                     */
1983
1984                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1985                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1986                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1987                         M_CMP(s1, s2);
1988                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1989                         M_MOVGT_IMM(2, REG_ITMP3);
1990                         M_MOVEQ_IMM(1, REG_ITMP3);
1991
1992                         /* low compare: x=x-1(ifLO) */
1993                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1994                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1995                         M_CMP(s1, s2);
1996                         M_SUBLO_IMM(REG_ITMP3, REG_ITMP3, 1);
1997
1998                         /* branch if (x GE 1) */
1999                         M_CMP_IMM(REG_ITMP3, 1);
2000                         emit_bge(cd, iptr->dst.block);
2001                         break;
2002
2003                 case ICMD_TABLESWITCH:  /* ..., index ==> ...                         */
2004                         {
2005                         s4 i, l;
2006                         branch_target_t *table;
2007
2008                         table = iptr->dst.table;
2009
2010                         l = iptr->sx.s23.s2.tablelow;
2011                         i = iptr->sx.s23.s3.tablehigh;
2012
2013                         /* calculate new index (index - low) */
2014                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2015                         if (l  == 0) {
2016                                 M_INTMOVE(s1, REG_ITMP1);
2017                         } else if (IS_IMM(l)) {
2018                                 M_SUB_IMM(REG_ITMP1, s1, l);
2019                         } else {
2020                                 ICONST(REG_ITMP2, l);
2021                                 M_SUB(REG_ITMP1, s1, REG_ITMP2);
2022                         }
2023
2024                         /* range check (index <= high-low) */
2025                         i = i - l + 1;
2026                         M_COMPARE(REG_ITMP1, i-1);
2027                         emit_bugt(cd, table[0].block);
2028
2029                         /* build jump table top down and use address of lowest entry */
2030
2031                         table += i;
2032
2033                         while (--i >= 0) {
2034                                 dseg_add_target(cd, table->block);
2035                                 --table;
2036                         }
2037                         }
2038
2039                         /* length of dataseg after last dseg_add_target is used by load */
2040                         /* TODO: this loads from data-segment */
2041                         M_ADD(REG_ITMP2, REG_PV, REG_LSL(REG_ITMP1, 2));
2042                         M_LDR(REG_PC, REG_ITMP2, -(cd->dseglen));
2043                         break;
2044
2045                 case ICMD_LOOKUPSWITCH: /* ..., key ==> ...                           */
2046                         {
2047                         s4 i;
2048                         lookup_target_t *lookup;
2049
2050                         lookup = iptr->dst.lookup;
2051
2052                         i = iptr->sx.s23.s2.lookupcount;
2053
2054                         /* compare keys */
2055                         MCODECHECK((i<<2)+8);
2056                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2057
2058                         while (--i >= 0) {
2059                                 M_COMPARE(s1, lookup->value);
2060                                 emit_beq(cd, lookup->target.block);
2061                                 lookup++;
2062                         }
2063
2064                         /* default branch */
2065                         emit_br(cd, iptr->sx.s23.s3.lookupdefault.block);
2066                         }
2067                         break;
2068
2069                 case ICMD_FRETURN:      /* ..., retvalue ==> ...                      */
2070
2071 #if !defined(ENABLE_SOFTFLOAT)
2072                         REPLACEMENT_POINT_RETURN(cd, iptr);
2073                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
2074                         M_CAST_F2I(s1, REG_RESULT);
2075                         goto ICMD_RETURN_do;
2076 #endif
2077
2078                 case ICMD_IRETURN:      /* ..., retvalue ==> ...                      */
2079
2080                         REPLACEMENT_POINT_RETURN(cd, iptr);
2081                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2082                         M_INTMOVE(s1, REG_RESULT);
2083                         goto ICMD_RETURN_do;
2084
2085                 case ICMD_DRETURN:      /* ..., retvalue ==> ...                      */
2086
2087 #if !defined(ENABLE_SOFTFLOAT)
2088                         REPLACEMENT_POINT_RETURN(cd, iptr);
2089                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
2090                         M_CAST_D2L(s1, REG_RESULT_PACKED);
2091                         goto ICMD_RETURN_do;
2092 #endif
2093
2094                 case ICMD_LRETURN:      /* ..., retvalue ==> ...                      */
2095
2096                         REPLACEMENT_POINT_RETURN(cd, iptr);
2097                         s1 = emit_load_s1(jd, iptr, REG_RESULT_PACKED);
2098                         M_LNGMOVE(s1, REG_RESULT_PACKED);
2099                         goto ICMD_RETURN_do;
2100
2101                 case ICMD_ARETURN:      /* ..., retvalue ==> ...                      */
2102
2103                         REPLACEMENT_POINT_RETURN(cd, iptr);
2104                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2105                         M_INTMOVE(s1, REG_RESULT);
2106                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2107                                 patcher_add_patch_ref(jd, PATCHER_resolve_class,
2108                                                                         iptr->sx.s23.s2.uc, 0);
2109                         }
2110                         goto ICMD_RETURN_do;
2111
2112                 case ICMD_RETURN:       /* ...  ==> ...                               */
2113
2114                         REPLACEMENT_POINT_RETURN(cd, iptr);
2115                         ICMD_RETURN_do:
2116
2117 #if !defined(NDEBUG)
2118                         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
2119                                 emit_verbosecall_exit(jd);
2120 #endif
2121
2122 #if defined(ENABLE_THREADS)
2123                         /* call monitorexit function */
2124
2125                         if (checksync && code_is_synchronized(code)) {
2126                                 /* stack offset for monitor argument */
2127
2128                                 s1 = rd->memuse * 8;
2129
2130                                 /* we need to save the proper return value */
2131
2132                                 switch (iptr->opc) {
2133                                 case ICMD_IRETURN:
2134                                 case ICMD_ARETURN:
2135                                 case ICMD_LRETURN:
2136                                 case ICMD_FRETURN: /* XXX TWISTI: is that correct? */
2137                                 case ICMD_DRETURN:
2138                                         M_STMFD(BITMASK_RESULT, REG_SP);
2139                                         s1 += 2 * 4;
2140                                         break;
2141                                 }
2142
2143                                 M_LDR(REG_A0, REG_SP, s1);
2144                                 disp = dseg_add_functionptr(cd, LOCK_monitor_exit);
2145                                 M_DSEG_BRANCH(disp);
2146
2147                                 /* we no longer need PV here, no more loading */
2148                                 /*s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2149                                 M_RECOMPUTE_PV(s1);*/
2150
2151                                 switch (iptr->opc) {
2152                                 case ICMD_IRETURN:
2153                                 case ICMD_ARETURN:
2154                                 case ICMD_LRETURN:
2155                                 case ICMD_FRETURN: /* XXX TWISTI: is that correct? */
2156                                 case ICMD_DRETURN:
2157                                         M_LDMFD(BITMASK_RESULT, REG_SP);
2158                                         break;
2159                                 }
2160                         }
2161 #endif
2162
2163                         /* deallocate stackframe for spilled variables */
2164
2165                         if ((cd->stackframesize / 4 - savedregs_num) > 0)
2166                                 M_ADD_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - savedregs_num);
2167
2168                         /* restore callee saved registers + do return */
2169
2170                         if (savedregs_bitmask) {
2171                                 if (!code_is_leafmethod(code)) {
2172                                         savedregs_bitmask &= ~(1<<REG_LR);
2173                                         savedregs_bitmask |= (1<<REG_PC);
2174                                 }
2175                                 M_LDMFD(savedregs_bitmask, REG_SP);
2176                         }
2177
2178                         /* if LR was not on stack, we need to return manually */
2179
2180                         if (code_is_leafmethod(code))
2181                                 M_MOV(REG_PC, REG_LR);
2182                         break;
2183
2184                 case ICMD_BUILTIN:      /* ..., arg1, arg2, arg3 ==> ...              */
2185
2186                         bte = iptr->sx.s23.s3.bte;
2187                         md  = bte->md;
2188                         goto ICMD_INVOKE_do;
2189
2190                 case ICMD_INVOKESTATIC: /* ..., [arg1, [arg2 ...]] ==> ...            */
2191                 case ICMD_INVOKESPECIAL:/* ..., objectref, [arg1, [arg2 ...]] ==> ... */
2192                 case ICMD_INVOKEVIRTUAL:/* op1 = arg count, val.a = method pointer    */
2193                 case ICMD_INVOKEINTERFACE:
2194
2195                         REPLACEMENT_POINT_INVOKE(cd, iptr);
2196
2197                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2198                                 lm = NULL;
2199                                 um = iptr->sx.s23.s3.um;
2200                                 md = um->methodref->parseddesc.md;
2201                         }
2202                         else {
2203                                 lm = iptr->sx.s23.s3.fmiref->p.method;
2204                                 um = NULL;
2205                                 md = lm->parseddesc;
2206                         }
2207
2208                 ICMD_INVOKE_do:
2209                         /* copy arguments to registers or stack location */
2210
2211                         s3 = md->paramcount;
2212
2213                         MCODECHECK((s3 << 1) + 64);
2214
2215                         for (s3 = s3 - 1; s3 >= 0; s3--) {
2216                                 var = VAR(iptr->sx.s23.s2.args[s3]);
2217                                 d   = md->params[s3].regoff;
2218
2219                                 if (var->flags & PREALLOC) /* argument was precolored? */
2220                                         continue;
2221
2222                                 /* TODO: document me */
2223 #if !defined(ENABLE_SOFTFLOAT)
2224                                 if (IS_INT_LNG_TYPE(var->type)) {
2225 #endif /* !defined(ENABLE_SOFTFLOAT) */
2226                                         if (!md->params[s3].inmemory) {
2227                                                 s1 = emit_load(jd, iptr, var, d);
2228
2229                                                 if (IS_2_WORD_TYPE(var->type))
2230                                                         M_LNGMOVE(s1, d);
2231                                                 else
2232                                                         M_INTMOVE(s1, d);
2233                                         }
2234                                         else {
2235                                                 if (IS_2_WORD_TYPE(var->type)) {
2236                                                         s1 = emit_load(jd, iptr, var, REG_ITMP12_PACKED);
2237                                                         M_LST(s1, REG_SP, d);
2238                                                 }
2239                                                 else {
2240                                                         s1 = emit_load(jd, iptr, var, REG_ITMP1);
2241                                                         M_IST(s1, REG_SP, d);
2242                                                 }
2243                                         }
2244 #if !defined(ENABLE_SOFTFLOAT)
2245                                 }
2246                                 else {
2247                                         if (!md->params[s3].inmemory) {
2248                                                 s1 = emit_load(jd, iptr, var, REG_FTMP1);
2249                                                 if (IS_2_WORD_TYPE(var->type))
2250                                                         M_CAST_D2L(s1, d);
2251                                                 else
2252                                                         M_CAST_F2I(s1, d);
2253                                         }
2254                                         else {
2255                                                 s1 = emit_load(jd, iptr, var, REG_FTMP1);
2256                                                 if (IS_2_WORD_TYPE(var->type))
2257                                                         M_DST(s1, REG_SP, d);
2258                                                 else
2259                                                         M_FST(s1, REG_SP, d);
2260                                         }
2261                                 }
2262 #endif /* !defined(ENABLE_SOFTFLOAT) */
2263                         }
2264
2265                         switch (iptr->opc) {
2266                         case ICMD_BUILTIN:
2267
2268                                 if (bte->stub == NULL) {
2269                                         disp = dseg_add_functionptr(cd, bte->fp);
2270                                 } else {
2271                                         disp = dseg_add_functionptr(cd, bte->stub);
2272                                 }
2273
2274                                 M_DSEG_LOAD(REG_PV, disp); /* pointer to built-in-function */
2275
2276                                 /* generate the actual call */
2277
2278                                 M_MOV(REG_LR, REG_PC);
2279                                 M_MOV(REG_PC, REG_PV);
2280                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2281                                 M_RECOMPUTE_PV(s1);
2282                                 break;
2283
2284                         case ICMD_INVOKESPECIAL:
2285                                 emit_nullpointer_check(cd, iptr, REG_A0);
2286                                 /* fall through */
2287
2288                         case ICMD_INVOKESTATIC:
2289                                 if (lm == NULL) {
2290                                         disp = dseg_add_unique_address(cd, NULL);
2291
2292                                         patcher_add_patch_ref(jd, PATCHER_invokestatic_special,
2293                                                                                 um, disp);
2294                                 }
2295                                 else
2296                                         disp = dseg_add_address(cd, lm->stubroutine);
2297
2298                                 M_DSEG_LOAD(REG_PV, disp);            /* Pointer to method */
2299
2300                                 /* generate the actual call */
2301
2302                                 M_MOV(REG_LR, REG_PC);
2303                                 M_MOV(REG_PC, REG_PV);
2304                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2305                                 M_RECOMPUTE_PV(s1);
2306                                 break;
2307
2308                         case ICMD_INVOKEVIRTUAL:
2309                                 if (lm == NULL) {
2310                                         patcher_add_patch_ref(jd, PATCHER_invokevirtual, um, 0);
2311
2312                                         s1 = 0;
2313                                 }
2314                                 else
2315                                         s1 = OFFSET(vftbl_t, table[0]) +
2316                                                 sizeof(methodptr) * lm->vftblindex;
2317
2318                                 /* implicit null-pointer check */
2319                                 M_LDR_INTERN(REG_METHODPTR, REG_A0,
2320                                                          OFFSET(java_object_t, vftbl));
2321                                 M_LDR_INTERN(REG_PV, REG_METHODPTR, s1);
2322
2323                                 /* generate the actual call */
2324
2325                                 M_MOV(REG_LR, REG_PC);
2326                                 M_MOV(REG_PC, REG_PV);
2327                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2328                                 M_RECOMPUTE_PV(s1);
2329                                 break;
2330
2331                         case ICMD_INVOKEINTERFACE:
2332                                 if (lm == NULL) {
2333                                         patcher_add_patch_ref(jd, PATCHER_invokeinterface, um, 0);
2334
2335                                         s1 = 0;
2336                                         s2 = 0;
2337                                 }
2338                                 else {
2339                                         s1 = OFFSET(vftbl_t, interfacetable[0]) -
2340                                                 sizeof(methodptr*) * lm->class->index;
2341                                         s2 = sizeof(methodptr) * (lm - lm->class->methods);
2342                                 }
2343
2344                                 /* implicit null-pointer check */
2345                                 M_LDR_INTERN(REG_METHODPTR, REG_A0,
2346                                                          OFFSET(java_object_t, vftbl));
2347                                 M_LDR_INTERN(REG_METHODPTR, REG_METHODPTR, s1);
2348                                 M_LDR_INTERN(REG_PV, REG_METHODPTR, s2);
2349
2350                                 /* generate the actual call */
2351
2352                                 M_MOV(REG_LR, REG_PC);
2353                                 M_MOV(REG_PC, REG_PV);
2354                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2355                                 M_RECOMPUTE_PV(s1);
2356                                 break;
2357                         }
2358
2359                         /* store size of call code in replacement point */
2360                         REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2361
2362                         /* store return value */
2363
2364                         d = md->returntype.type;
2365
2366 #if !defined(__SOFTFP__)
2367                         /* TODO: this is only a hack, since we use R0/R1 for float
2368                            return!  this depends on gcc; it is independent from
2369                            our ENABLE_SOFTFLOAT define */
2370                         if (iptr->opc == ICMD_BUILTIN && d != TYPE_VOID && IS_FLT_DBL_TYPE(d)) {
2371 #if 0 && !defined(NDEBUG)
2372                                 dolog("BUILTIN that returns float or double (%s.%s)", m->class->name->text, m->name->text);
2373 #endif
2374                                 /* we cannot use this macro, since it is not defined
2375                                    in ENABLE_SOFTFLOAT M_CAST_FLT_TO_INT_TYPED(d,
2376                                    REG_FRESULT, REG_RESULT_TYPED(d)); */
2377                                 if (IS_2_WORD_TYPE(d)) {
2378                                         DCD(0xed2d8102); /* stfd    f0, [sp, #-8]! */
2379                                         M_LDRD_UPDATE(REG_RESULT_PACKED, REG_SP, 8);
2380                                 } else {
2381                                         DCD(0xed2d0101); /* stfs    f0, [sp, #-4]!*/
2382                                         M_LDR_UPDATE(REG_RESULT, REG_SP, 4);
2383                                 }
2384                         }
2385 #endif
2386
2387                         if (d != TYPE_VOID) {
2388 #if !defined(ENABLE_SOFTFLOAT)
2389                                 if (IS_INT_LNG_TYPE(d)) {
2390 #endif /* !defined(ENABLE_SOFTFLOAT) */
2391                                         if (IS_2_WORD_TYPE(d)) {
2392                                                 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
2393                                                 M_LNGMOVE(REG_RESULT_PACKED, s1);
2394                                         }
2395                                         else {
2396                                                 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2397                                                 M_INTMOVE(REG_RESULT, s1);
2398                                         }
2399
2400 #if !defined(ENABLE_SOFTFLOAT)
2401                                 } else {
2402                                         s1 = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
2403                                         if (IS_2_WORD_TYPE(d))
2404                                                 M_CAST_L2D(REG_RESULT_PACKED, s1);
2405                                         else
2406                                                 M_CAST_I2F(REG_RESULT, s1);
2407                                 }
2408 #endif /* !defined(ENABLE_SOFTFLOAT) */
2409
2410                                 emit_store_dst(jd, iptr, s1);
2411                         }
2412                         break;
2413
2414                 case ICMD_CHECKCAST:  /* ..., objectref ==> ..., objectref            */
2415
2416                         if (!(iptr->flags.bits & INS_FLAG_ARRAY)) {
2417                                 /* object type cast-check */
2418
2419                         classinfo *super;
2420                         s4         superindex;
2421
2422                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2423                                 super      = NULL;
2424                                 superindex = 0;
2425                         }
2426                         else {
2427                                 super      = iptr->sx.s23.s3.c.cls;
2428                                 superindex = super->index;
2429                         }
2430
2431                                 if ((super == NULL) || !(super->flags & ACC_INTERFACE))
2432                                         CODEGEN_CRITICAL_SECTION_NEW;
2433
2434                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2435
2436                         /* if class is not resolved, check which code to call */
2437
2438                         if (super == NULL) {
2439                                 M_TST(s1, s1);
2440                                 emit_label_beq(cd, BRANCH_LABEL_1);
2441
2442                                 disp = dseg_add_unique_s4(cd, 0); /* super->flags */
2443                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_flags,
2444                                                     iptr->sx.s23.s3.c.ref, disp);
2445
2446                                 M_DSEG_LOAD(REG_ITMP2, disp);
2447                                 disp = dseg_add_s4(cd, ACC_INTERFACE);
2448                                 M_DSEG_LOAD(REG_ITMP3, disp);
2449                                 M_TST(REG_ITMP2, REG_ITMP3);
2450                                 emit_label_beq(cd, BRANCH_LABEL_2);
2451                         }
2452
2453                         /* interface checkcast code */
2454
2455                         if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2456                                 if ((super == NULL) || !IS_IMM(superindex)) {
2457                                         disp = dseg_add_unique_s4(cd, superindex);
2458                                 }
2459                                 if (super == NULL) {
2460                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_index,
2461                                                             iptr->sx.s23.s3.c.ref, disp);
2462                                 }
2463                                 else {
2464                                         M_TST(s1, s1);
2465                                         emit_label_beq(cd, BRANCH_LABEL_3);
2466                                 }
2467
2468                                 M_LDR_INTERN(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
2469                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, interfacetablelength));
2470
2471                                 /* we put unresolved or non-immediate superindices onto dseg */
2472                                 if ((super == NULL) || !IS_IMM(superindex)) {
2473                                         /* disp was computed before we added the patcher */
2474                                         M_DSEG_LOAD(REG_ITMP2, disp);
2475                                         M_CMP(REG_ITMP3, REG_ITMP2);
2476                                 } else {
2477                                         assert(IS_IMM(superindex));
2478                                         M_CMP_IMM(REG_ITMP3, superindex);
2479                                 }
2480
2481                                 emit_classcast_check(cd, iptr, BRANCH_LE, REG_ITMP3, s1);
2482
2483                                 /* if we loaded the superindex out of the dseg above, we do
2484                                    things differently here! */
2485                                 if ((super == NULL) || !IS_IMM(superindex)) {
2486
2487                                         M_LDR_INTERN(REG_ITMP3, s1, OFFSET(java_object_t, vftbl));
2488
2489                                         /* this assumes something */
2490                                         assert(OFFSET(vftbl_t, interfacetable[0]) == 0);
2491
2492                                         /* this does: REG_ITMP3 - superindex * sizeof(methodptr*) */
2493                                         assert(sizeof(methodptr*) == 4);
2494                                         M_SUB(REG_ITMP2, REG_ITMP3, REG_LSL(REG_ITMP2, 2));
2495
2496                                         s2 = 0;
2497
2498                                 } else {
2499
2500                                         s2 = OFFSET(vftbl_t, interfacetable[0]) -
2501                                                                 superindex * sizeof(methodptr*);
2502
2503                                 }
2504
2505                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, s2);
2506                                 M_TST(REG_ITMP3, REG_ITMP3);
2507                                 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_ITMP3, s1);
2508
2509                                 if (super == NULL)
2510                                         emit_label_br(cd, BRANCH_LABEL_4);
2511                                 else
2512                                         emit_label(cd, BRANCH_LABEL_3);
2513                         }
2514
2515                         /* class checkcast code */
2516
2517                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2518                                 if (super == NULL) {
2519                                         emit_label(cd, BRANCH_LABEL_2);
2520
2521                                         disp = dseg_add_unique_address(cd, NULL);
2522
2523                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_vftbl,
2524                                                             iptr->sx.s23.s3.c.ref,
2525                                                                                 disp);
2526                                 }
2527                                 else {
2528                                         disp = dseg_add_address(cd, super->vftbl);
2529
2530                                         M_TST(s1, s1);
2531                                         emit_label_beq(cd, BRANCH_LABEL_5);
2532                                 }
2533
2534                                 M_LDR_INTERN(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
2535                                 M_DSEG_LOAD(REG_ITMP3, disp);
2536
2537                                 CODEGEN_CRITICAL_SECTION_START;
2538
2539                                 M_LDR_INTERN(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, baseval));
2540                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, baseval));
2541                                 M_SUB(REG_ITMP2, REG_ITMP2, REG_ITMP3);
2542                                 M_DSEG_LOAD(REG_ITMP3, disp);
2543                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, diffval));
2544
2545                                 CODEGEN_CRITICAL_SECTION_END;
2546
2547                                 M_CMP(REG_ITMP2, REG_ITMP3);
2548                                 emit_classcast_check(cd, iptr, BRANCH_UGT, 0, s1);
2549
2550                                 if (super != NULL)
2551                                         emit_label(cd, BRANCH_LABEL_5);
2552                         }
2553
2554                         if (super == NULL) {
2555                                 emit_label(cd, BRANCH_LABEL_1);
2556                                 emit_label(cd, BRANCH_LABEL_4);
2557                         }
2558
2559                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
2560                         }
2561                         else {
2562                                 /* array type cast-check */
2563
2564                                 s1 = emit_load_s1(jd, iptr, REG_A0);
2565                                 M_INTMOVE(s1, REG_A0);
2566
2567                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2568                                         disp = dseg_add_unique_address(cd, NULL);
2569
2570                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
2571                                                                                 iptr->sx.s23.s3.c.ref,
2572                                                                                 disp);
2573                                 }
2574                                 else
2575                                         disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2576
2577                                 M_DSEG_LOAD(REG_A1, disp);
2578                                 disp = dseg_add_functionptr(cd, BUILTIN_arraycheckcast);
2579                                 M_DSEG_BRANCH(disp);
2580
2581                                 /* recompute pv */
2582                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2583                                 M_RECOMPUTE_PV(disp);
2584
2585                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2586                                 M_TST(REG_RESULT, REG_RESULT);
2587                                 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_RESULT, s1);
2588
2589                                 d = codegen_reg_of_dst(jd, iptr, s1);
2590                         }
2591
2592                         M_INTMOVE(s1, d);
2593                         emit_store_dst(jd, iptr, d);
2594                         break;
2595
2596                 case ICMD_INSTANCEOF: /* ..., objectref ==> ..., intresult            */
2597
2598                         {
2599                         classinfo *super;
2600                         s4         superindex;
2601
2602                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2603                                 super      = NULL;
2604                                 superindex = 0;
2605                         }
2606                         else {
2607                                 super      = iptr->sx.s23.s3.c.cls;
2608                                 superindex = super->index;
2609                         }
2610
2611                         if ((super == NULL) || !(super->flags & ACC_INTERFACE))
2612                                 CODEGEN_CRITICAL_SECTION_NEW;
2613
2614                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2615                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
2616
2617                         if (s1 == d) {
2618                                 M_MOV(REG_ITMP1, s1);
2619                                 s1 = REG_ITMP1;
2620                         }
2621
2622                         /* if class is not resolved, check which code to call */
2623
2624                         if (super == NULL) {
2625                                 M_EOR(d, d, d);
2626
2627                                 M_TST(s1, s1);
2628                                 emit_label_beq(cd, BRANCH_LABEL_1);
2629
2630                                 disp = dseg_add_unique_s4(cd, 0); /* super->flags */
2631                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_flags,
2632                                                     iptr->sx.s23.s3.c.ref, disp);
2633
2634                                 M_DSEG_LOAD(REG_ITMP2, disp);
2635                                 disp = dseg_add_s4(cd, ACC_INTERFACE);
2636                                 M_DSEG_LOAD(REG_ITMP3, disp);
2637                                 M_TST(REG_ITMP2, REG_ITMP3);
2638                                 emit_label_beq(cd, BRANCH_LABEL_2);
2639                         }
2640
2641                         /* interface checkcast code */
2642
2643                         if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2644                                 if ((super == NULL) || !IS_IMM(superindex)) {
2645                                         disp = dseg_add_unique_s4(cd, superindex);
2646                                 }
2647                                 if (super == NULL) {
2648                                         /* If d == REG_ITMP2, then it's destroyed in check
2649                                            code above.  */
2650                                         if (d == REG_ITMP2)
2651                                                 M_EOR(d, d, d);
2652
2653                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_index,
2654                                                             iptr->sx.s23.s3.c.ref, disp);
2655                                 }
2656                                 else {
2657                                         M_EOR(d, d, d);
2658                                         M_TST(s1, s1);
2659                                         emit_label_beq(cd, BRANCH_LABEL_3);
2660                                 }
2661
2662                                 M_LDR_INTERN(REG_ITMP1, s1, OFFSET(java_object_t, vftbl));
2663                                 M_LDR_INTERN(REG_ITMP3,
2664                                                          REG_ITMP1, OFFSET(vftbl_t, interfacetablelength));
2665
2666                                 /* we put unresolved or non-immediate superindices onto dseg
2667                                    and do things slightly different */
2668                                 if ((super == NULL) || !IS_IMM(superindex)) {
2669                                         /* disp was computed before we added the patcher */
2670                                         M_DSEG_LOAD(REG_ITMP2, disp);
2671                                         M_CMP(REG_ITMP3, REG_ITMP2);
2672
2673                                         if (d == REG_ITMP2) {
2674                                                 M_EORLE(d, d, d);
2675                                                 M_BLE(4);
2676                                         } else {
2677                                                 M_BLE(3);
2678                                         }
2679
2680                                         /* this assumes something */
2681                                         assert(OFFSET(vftbl_t, interfacetable[0]) == 0);
2682
2683                                         /* this does: REG_ITMP3 - superindex * sizeof(methodptr*) */
2684                                         assert(sizeof(methodptr*) == 4);
2685                                         M_SUB(REG_ITMP1, REG_ITMP1, REG_LSL(REG_ITMP2, 2));
2686
2687                                         if (d == REG_ITMP2) {
2688                                                 M_EOR(d, d, d);
2689                                         }
2690
2691                                         s2 = 0;
2692
2693                                 } else {
2694                                         assert(IS_IMM(superindex));
2695                                         M_CMP_IMM(REG_ITMP3, superindex);
2696
2697                                         M_BLE(2);
2698
2699                                         s2 = OFFSET(vftbl_t, interfacetable[0]) -
2700                                                 superindex * sizeof(methodptr*);
2701
2702                                 }
2703
2704                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP1, s2);
2705                                 M_TST(REG_ITMP3, REG_ITMP3);
2706                                 M_MOVNE_IMM(1, d);
2707
2708                                 if (super == NULL)
2709                                         emit_label_br(cd, BRANCH_LABEL_4);
2710                                 else
2711                                         emit_label(cd, BRANCH_LABEL_3);
2712                         }
2713
2714                         /* class checkcast code */
2715
2716                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2717                                 if (super == NULL) {
2718                                         emit_label(cd, BRANCH_LABEL_2);
2719
2720                                         disp = dseg_add_unique_address(cd, NULL);
2721
2722                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_vftbl,
2723                                                             iptr->sx.s23.s3.c.ref, disp);
2724                                 }
2725                                 else {
2726                                         disp = dseg_add_address(cd, super->vftbl);
2727
2728                                         M_EOR(d, d, d);
2729                                         M_TST(s1, s1);
2730                                         emit_label_beq(cd, BRANCH_LABEL_5);
2731                                 }
2732
2733                                 M_LDR_INTERN(REG_ITMP1, s1, OFFSET(java_object_t, vftbl));
2734                                 M_DSEG_LOAD(REG_ITMP2, disp);
2735
2736                                 CODEGEN_CRITICAL_SECTION_START;
2737
2738                                 M_LDR_INTERN(REG_ITMP1, REG_ITMP1, OFFSET(vftbl_t, baseval));
2739                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2740                                 M_LDR_INTERN(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2741
2742                                 CODEGEN_CRITICAL_SECTION_END;
2743
2744                                 M_SUB(REG_ITMP1, REG_ITMP1, REG_ITMP3);
2745                                 M_CMP(REG_ITMP1, REG_ITMP2);
2746                                 /* If d == REG_ITMP2, then it's destroyed */
2747                                 if (d == REG_ITMP2)
2748                                         M_EOR(d, d, d);
2749                                 M_MOVLS_IMM(1, d);
2750
2751                                 if (super != NULL)
2752                                         emit_label(cd, BRANCH_LABEL_5);
2753                         }
2754
2755                         if (super == NULL) {
2756                                 emit_label(cd, BRANCH_LABEL_1);
2757                                 emit_label(cd, BRANCH_LABEL_4);
2758                         }
2759
2760                         }
2761
2762                         emit_store_dst(jd, iptr, d);
2763                         break;
2764
2765                 case ICMD_MULTIANEWARRAY:/* ..., cnt1, [cnt2, ...] ==> ..., arrayref  */
2766
2767                         /* copy sizes to stack if necessary  */
2768
2769                         MCODECHECK((iptr->s1.argcount << 1) + 64);
2770
2771                         for (s1 = iptr->s1.argcount; --s1 >= 0; ) {
2772
2773                                 var = VAR(iptr->sx.s23.s2.args[s1]);
2774
2775                                 /* copy SAVEDVAR sizes to stack */
2776
2777                                 if (!(var->flags & PREALLOC)) {
2778                                         s2 = emit_load(jd, iptr, var, REG_ITMP1);
2779                                         M_STR(s2, REG_SP, s1 * 4);
2780                                 }
2781                         }
2782
2783                         /* a0 = dimension count */
2784
2785                         assert(IS_IMM(iptr->s1.argcount));
2786                         M_MOV_IMM(REG_A0, iptr->s1.argcount);
2787
2788                         /* is patcher function set? */
2789
2790                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2791                                 disp = dseg_add_unique_address(cd, NULL);
2792
2793                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
2794                                                                         iptr->sx.s23.s3.c.ref, disp);
2795                         }
2796                         else
2797                                 disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2798
2799                         /* a1 = arraydescriptor */
2800
2801                         M_DSEG_LOAD(REG_A1, disp);
2802
2803                         /* a2 = pointer to dimensions = stack pointer */
2804
2805                         M_INTMOVE(REG_SP, REG_A2);
2806
2807                         /* call builtin_multianewarray here */
2808
2809                         disp = dseg_add_functionptr(cd, BUILTIN_multianewarray);
2810                         M_DSEG_BRANCH(disp);
2811
2812                         /* recompute pv */
2813
2814                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2815                         M_RECOMPUTE_PV(s1);
2816
2817                         /* check for exception before result assignment */
2818
2819                         emit_exception_check(cd, iptr);
2820
2821                         /* get arrayref */
2822
2823                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2824                         M_INTMOVE(REG_RESULT, d);
2825                         emit_store_dst(jd, iptr, d);
2826                         break;
2827
2828                 case ICMD_CHECKNULL:  /* ..., objectref  ==> ..., objectref           */
2829
2830                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2831                         emit_nullpointer_check(cd, iptr, s1);
2832                         break;
2833
2834                 default:
2835                         exceptions_throw_internalerror("Unknown ICMD %d during code generation",
2836                                                                                    iptr->opc);
2837                         return false;
2838                 } /* the big switch */
2839
2840                 } /* for all instructions */
2841
2842         } /* for all basic blocks */
2843
2844         dseg_createlinenumbertable(cd);
2845
2846
2847         /* generate traps */
2848
2849         emit_patcher_traps(jd);
2850
2851         /* everything's ok */
2852
2853         return true;
2854 }
2855
2856
2857 /* codegen_emit_stub_compiler **************************************************
2858
2859    Emits a stub routine which calls the compiler.
2860
2861 *******************************************************************************/
2862
2863 void codegen_emit_stub_compiler(jitdata *jd)
2864 {
2865         methodinfo  *m;
2866         codegendata *cd;
2867
2868         /* get required compiler data */
2869
2870         m  = jd->m;
2871         cd = jd->cd;
2872
2873         /* code for the stub */
2874
2875         M_LDR_INTERN(REG_ITMP1, REG_PC, -(2 * 4 + 2 * SIZEOF_VOID_P));
2876         M_LDR_INTERN(REG_PC, REG_PC, -(3 * 4 + 3 * SIZEOF_VOID_P));
2877 }
2878
2879
2880 /* codegen_emit_stub_native ****************************************************
2881
2882    Emits a stub routine which calls a native method.
2883
2884 *******************************************************************************/
2885
2886 void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f, int skipparams)
2887 {
2888         methodinfo  *m;
2889         codeinfo    *code;
2890         codegendata *cd;
2891         methoddesc  *md;
2892         s4           i, j;
2893         s4           t;
2894         int          s1, s2;
2895         int          disp;
2896
2897         /* get required compiler data */
2898
2899         m    = jd->m;
2900         code = jd->code;
2901         cd   = jd->cd;
2902
2903         /* initialize variables */
2904
2905         md = m->parseddesc;
2906
2907         /* calculate stackframe size */
2908
2909         cd->stackframesize =
2910                 4 +                                                /* return address  */
2911                 sizeof(stackframeinfo_t) +                         /* stackframeinfo  */
2912                 sizeof(localref_table) +                           /* localref_table  */
2913                 nmd->memuse * 4;                                   /* stack arguments */
2914
2915         /* align stack to 8-byte */
2916
2917         cd->stackframesize = (cd->stackframesize + 4) & ~4;
2918
2919         /* create method header */
2920
2921         (void) dseg_add_unique_address(cd, code);              /* CodeinfoPointer */
2922         (void) dseg_add_unique_s4(cd, cd->stackframesize);     /* FrameSize       */
2923         (void) dseg_add_unique_s4(cd, 0);                      /* IsSync          */
2924         (void) dseg_add_unique_s4(cd, 0);                      /* IsLeaf          */
2925         (void) dseg_add_unique_s4(cd, 0);                      /* IntSave         */
2926         (void) dseg_add_unique_s4(cd, 0);                      /* FltSave         */
2927         (void) dseg_addlinenumbertablesize(cd);
2928         (void) dseg_add_unique_s4(cd, 0);                      /* ExTableSize     */
2929
2930         /* generate stub code */
2931
2932         M_STMFD(1<<REG_LR, REG_SP);
2933         M_SUB_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - 1);
2934
2935 #if !defined(NDEBUG)
2936         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
2937                 emit_verbosecall_enter(jd);
2938 #endif
2939
2940 #if defined(ENABLE_GC_CACAO)
2941         /* Save callee saved integer registers in stackframeinfo (GC may
2942            need to recover them during a collection). */
2943
2944         disp = cd->stackframesize - SIZEOF_VOID_P - sizeof(stackframeinfo_t) +
2945                 OFFSET(stackframeinfo_t, intregs);
2946
2947         for (i = 0; i < INT_SAV_CNT; i++)
2948                 M_STR_INTERN(abi_registers_integer_saved[i], REG_SP, disp + i * 4);
2949 #endif
2950
2951         /* Save integer and float argument registers (these are 4
2952            registers, stack is 8-byte aligned). */
2953
2954         M_STMFD(BITMASK_ARGS, REG_SP);
2955         /* TODO: floating point */
2956
2957         /* create native stackframe info */
2958
2959         M_ADD_IMM(REG_A0, REG_SP, 4*4);
2960         M_MOV(REG_A1, REG_PV);
2961         disp = dseg_add_functionptr(cd, codegen_start_native_call);
2962         M_DSEG_BRANCH(disp);
2963
2964         /* recompute pv */
2965
2966         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2967         M_RECOMPUTE_PV(s1);
2968
2969         /* remember class argument */
2970
2971         if (m->flags & ACC_STATIC)
2972                 M_MOV(REG_ITMP3, REG_RESULT);
2973
2974         /* Restore integer and float argument registers (these are 4
2975            registers, stack is 8-byte aligned). */
2976
2977         M_LDMFD(BITMASK_ARGS, REG_SP);
2978         /* TODO: floating point */
2979
2980         /* copy or spill arguments to new locations */
2981         /* ATTENTION: the ARM has only integer argument registers! */
2982
2983         for (i = md->paramcount - 1, j = i + skipparams; i >= 0; i--, j--) {
2984                 t = md->paramtypes[i].type;
2985
2986                 if (!md->params[i].inmemory) {
2987                         s1 = md->params[i].regoff;
2988                         s2 = nmd->params[j].regoff;
2989
2990                         if (!nmd->params[j].inmemory) {
2991 #if !defined(__ARM_EABI__)
2992                                 SPLIT_OPEN(t, s2, REG_ITMP1);
2993 #endif
2994
2995                                 if (IS_2_WORD_TYPE(t))
2996                                         M_LNGMOVE(s1, s2);
2997                                 else
2998                                         M_INTMOVE(s1, s2);
2999
3000 #if !defined(__ARM_EABI__)
3001                                 SPLIT_STORE_AND_CLOSE(t, s2, 0);
3002 #endif
3003                         }
3004                         else {
3005                                 if (IS_2_WORD_TYPE(t))
3006                                         M_LST(s1, REG_SP, s2);
3007                                 else
3008                                         M_IST(s1, REG_SP, s2);
3009                         }
3010                 }
3011                 else {
3012                         s1 = md->params[i].regoff + cd->stackframesize;
3013                         s2 = nmd->params[j].regoff;
3014
3015                         if (IS_2_WORD_TYPE(t)) {
3016                                 M_LLD(REG_ITMP12_PACKED, REG_SP, s1);
3017                                 M_LST(REG_ITMP12_PACKED, REG_SP, s2);
3018                         }
3019                         else {
3020                                 M_ILD(REG_ITMP1, REG_SP, s1);
3021                                 M_IST(REG_ITMP1, REG_SP, s2);
3022                         }
3023                 }
3024         }
3025
3026         /* Handle native Java methods. */
3027
3028         if (m->flags & ACC_NATIVE) {
3029                 /* put class into second argument register */
3030
3031                 if (m->flags & ACC_STATIC)
3032                         M_MOV(REG_A1, REG_ITMP3);
3033
3034                 /* put env into first argument register */
3035
3036                 disp = dseg_add_address(cd, _Jv_env);
3037                 M_DSEG_LOAD(REG_A0, disp);
3038         }
3039
3040         /* Call the native function. */
3041
3042         disp = dseg_add_functionptr(cd, f);
3043         M_DSEG_BRANCH(disp);
3044
3045         /* recompute pv */
3046         /* TODO: this is only needed because of the tracer ... do we
3047            really need it? */
3048
3049         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3050         M_RECOMPUTE_PV(s1);
3051
3052 #if !defined(__SOFTFP__)
3053         /* TODO: this is only a hack, since we use R0/R1 for float return! */
3054         /* this depends on gcc; it is independent from our ENABLE_SOFTFLOAT define */
3055         if (md->returntype.type != TYPE_VOID && IS_FLT_DBL_TYPE(md->returntype.type)) {
3056 #if 0 && !defined(NDEBUG)
3057                 dolog("NATIVESTUB that returns float or double (%s.%s)", m->class->name->text, m->name->text);
3058 #endif
3059                 /* we cannot use this macro, since it is not defined in ENABLE_SOFTFLOAT */
3060                 /* M_CAST_FLT_TO_INT_TYPED(md->returntype.type, REG_FRESULT, REG_RESULT_TYPED(md->returntype.type)); */
3061                 if (IS_2_WORD_TYPE(md->returntype.type)) {
3062                         DCD(0xed2d8102); /* stfd    f0, [sp, #-8]! */
3063                         M_LDRD_UPDATE(REG_RESULT_PACKED, REG_SP, 8);
3064                 } else {
3065                         DCD(0xed2d0101); /* stfs    f0, [sp, #-4]!*/
3066                         M_LDR_UPDATE(REG_RESULT, REG_SP, 4);
3067                 }
3068         }
3069 #endif
3070
3071 #if !defined(NDEBUG)
3072         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
3073                 emit_verbosecall_exit(jd);
3074 #endif
3075
3076         /* remove native stackframe info */
3077         /* TODO: improve this store/load */
3078
3079         M_STMFD(BITMASK_RESULT, REG_SP);
3080
3081         M_ADD_IMM(REG_A0, REG_SP, 2*4);
3082         M_MOV(REG_A1, REG_PV);
3083         disp = dseg_add_functionptr(cd, codegen_finish_native_call);
3084         M_DSEG_BRANCH(disp);
3085         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3086         M_RECOMPUTE_PV(s1);
3087
3088         M_MOV(REG_ITMP1_XPTR, REG_RESULT);
3089         M_LDMFD(BITMASK_RESULT, REG_SP);
3090
3091 #if defined(ENABLE_GC_CACAO)
3092         /* restore callee saved int registers from stackframeinfo (GC might have  */
3093         /* modified them during a collection).                                    */
3094
3095         disp = cd->stackframesize - SIZEOF_VOID_P - sizeof(stackframeinfo_t) +
3096                 OFFSET(stackframeinfo_t, intregs);
3097
3098         for (i = 0; i < INT_SAV_CNT; i++)
3099                 M_LDR_INTERN(abi_registers_integer_saved[i], REG_SP, disp + i * 4);
3100 #endif
3101
3102         /* finish stub code, but do not yet return to caller */
3103
3104         M_ADD_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - 1);
3105         M_LDMFD(1<<REG_LR, REG_SP);
3106
3107         /* check for exception */
3108
3109         M_TST(REG_ITMP1_XPTR, REG_ITMP1_XPTR);
3110         M_MOVEQ(REG_LR, REG_PC);            /* if no exception, return to caller  */
3111
3112         /* handle exception here */
3113
3114         M_SUB_IMM(REG_ITMP2_XPC, REG_LR, 4);/* move fault address into xpc        */
3115
3116         disp = dseg_add_functionptr(cd, asm_handle_nat_exception);
3117         M_DSEG_LOAD(REG_ITMP3, disp);       /* load asm exception handler address */
3118         M_MOV(REG_PC, REG_ITMP3);           /* jump to asm exception handler      */
3119
3120         /* generate patcher stubs */
3121
3122         emit_patcher_traps(jd);
3123 }
3124
3125
3126 /* asm_debug *******************************************************************
3127
3128    Lazy debugger!
3129
3130 *******************************************************************************/
3131
3132 void asm_debug(int a1, int a2, int a3, int a4)
3133 {
3134         printf("===> i am going to exit after this debugging message!\n");
3135         printf("got asm_debug(%p, %p, %p, %p)\n",(void*)a1,(void*)a2,(void*)a3,(void*)a4);
3136         vm_abort("leave you now");
3137 }
3138
3139
3140 /*
3141  * These are local overrides for various environment variables in Emacs.
3142  * Please do not remove this and leave it at the end of the file, where
3143  * Emacs will automagically detect them.
3144  * ---------------------------------------------------------------------
3145  * Local variables:
3146  * mode: c
3147  * indent-tabs-mode: t
3148  * c-basic-offset: 4
3149  * tab-width: 4
3150  * End:
3151  * vim:noexpandtab:sw=4:ts=4:
3152  */