src/vm/jit/arm/codegen.c

   1 /* src/vm/jit/arm/codegen.c - machine code generator for Arm
   2
   3    Copyright (C) 1996-2005, 2006, 2007 R. Grafl, A. Krall, C. Kruegel,
   4    C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
   5    E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
   6    J. Wenninger, Institut f. Computersprachen - TU Wien
   7
   8    This file is part of CACAO.
   9
  10    This program is free software; you can redistribute it and/or
  11    modify it under the terms of the GNU General Public License as
  12    published by the Free Software Foundation; either version 2, or (at
  13    your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful, but
  16    WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18    General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program; if not, write to the Free Software
  22    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  23    02110-1301, USA.
  24
  25    $Id: codegen.c 8182 2007-07-05 20:36:16Z michi $
  26
  27 */
  28
  29
  30 #include "config.h"
  31
  32 #include <assert.h>
  33 #include <stdio.h>
  34
  35 #include "vm/types.h"
  36
  37 #include "md-abi.h"
  38
  39 #include "vm/jit/arm/arch.h"
  40 #include "vm/jit/arm/codegen.h"
  41
  42 #include "mm/memory.h"
  43
  44 #include "native/native.h"
  45
  46 #include "threads/lock-common.h"
  47
  48 #include "vm/builtin.h"
  49 #include "vm/exceptions.h"
  50 #include "vm/global.h"
  51 #include "vm/vm.h"
  52
  53 #include "vm/jit/asmpart.h"
  54 #include "vm/jit/codegen-common.h"
  55 #include "vm/jit/dseg.h"
  56 #include "vm/jit/emit-common.h"
  57 #include "vm/jit/jit.h"
  58 #include "vm/jit/md.h"
  59 #include "vm/jit/methodheader.h"
  60 #include "vm/jit/parse.h"
  61 #include "vm/jit/patcher-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         s4              fieldtype;
  92         s4              varindex;
  93
  94         s4              spilledregs_num;
  95         s4              savedregs_num;
  96         u2              savedregs_bitmask;
  97         u2              currentline;
  98
  99         methodinfo         *lm;             /* local methodinfo for ICMD_INVOKE* */
 100         unresolved_method  *um;
 101         builtintable_entry *bte;
 102         methoddesc         *md;
 103
 104         /* get required compiler data */
 105
 106         m    = jd->m;
 107         code = jd->code;
 108         cd   = jd->cd;
 109         rd   = jd->rd;
 110
 111         /* prevent compiler warnings */
 112
 113         lm  = NULL;
 114         um  = NULL;
 115         bte = NULL;
 116
 117         fieldtype = -1;
 118
 119         /* space to save used callee saved registers */
 120
 121         savedregs_num = (jd->isleafmethod) ? 0 : 1;       /* space to save the LR */
 122         savedregs_num += (INT_SAV_CNT - rd->savintreguse);
 123         /*savedregs_num += (FLT_SAV_CNT - rd->savfltreguse);*/
 124         assert((FLT_SAV_CNT - rd->savfltreguse) == 0);
 125
 126         spilledregs_num = rd->memuse;
 127
 128 #if defined(ENABLE_THREADS)        /* space to save argument of monitor_enter */
 129         if (checksync && (m->flags & ACC_SYNCHRONIZED))
 130                 spilledregs_num++;
 131 #endif
 132
 133         cd->stackframesize = spilledregs_num * 8 + savedregs_num * 4;
 134
 135         /* XXX QUICK FIX: We shouldn't align the stack in Java code, but
 136            only in native stubs. */
 137         /* align stack to 8-byte */
 138
 139         cd->stackframesize = (cd->stackframesize + 4) & ~4;
 140
 141         /* SECTION: Method Header */
 142         /* create method header */
 143
 144         (void) dseg_add_unique_address(cd, code);              /* CodeinfoPointer */
 145         (void) dseg_add_unique_s4(cd, cd->stackframesize);     /* FrameSize       */
 146
 147 #if defined(ENABLE_THREADS)
 148         /* IsSync contains the offset relative to the stack pointer for the
 149            argument of monitor_exit used in the exception handler. Since the
 150            offset could be zero and give a wrong meaning of the flag it is
 151            offset by one.
 152         */
 153
 154         if (checksync && (m->flags & ACC_SYNCHRONIZED))
 155                 (void) dseg_add_unique_s4(cd, rd->memuse * 8 + 4);/* IsSync         */
 156         else
 157 #endif
 158                 (void) dseg_add_unique_s4(cd, 0);                  /* IsSync          */
 159
 160         (void) dseg_add_unique_s4(cd, jd->isleafmethod);       /* IsLeaf          */
 161         (void) dseg_add_unique_s4(cd, INT_SAV_CNT - rd->savintreguse); /* IntSave */
 162         (void) dseg_add_unique_s4(cd, FLT_SAV_CNT - rd->savfltreguse); /* FltSave */
 163         (void) dseg_addlinenumbertablesize(cd);
 164         (void) dseg_add_unique_s4(cd, jd->exceptiontablelength); /* ExTableSize   */
 165
 166         /* create exception table */
 167
 168         for (ex = jd->exceptiontable; ex != NULL; ex = ex->down) {
 169                 dseg_add_target(cd, ex->start);
 170                 dseg_add_target(cd, ex->end);
 171                 dseg_add_target(cd, ex->handler);
 172                 (void) dseg_add_unique_address(cd, ex->catchtype.any);
 173         }
 174
 175         /* save return address and used callee saved registers */
 176
 177         savedregs_bitmask = 0;
 178
 179         if (!jd->isleafmethod)
 180                 savedregs_bitmask = (1<<REG_LR);
 181
 182         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--)
 183                 savedregs_bitmask |= (1<<(rd->savintregs[i]));
 184
 185 #if !defined(NDEBUG)
 186         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
 187                 log_text("!!! CODEGEN: floating-point callee saved registers are not saved to stack (SEVERE! STACK IS MESSED UP!)");
 188                 /* TODO: floating-point */
 189         }
 190 #endif
 191
 192         if (savedregs_bitmask)
 193                 M_STMFD(savedregs_bitmask, REG_SP);
 194
 195         /* create additional stack frame for spilled variables (if necessary) */
 196
 197         if ((cd->stackframesize / 4 - savedregs_num) > 0)
 198                 M_SUB_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - savedregs_num);
 199
 200         /* take arguments out of register or stack frame */
 201
 202         md = m->parseddesc;
 203         for (i = 0, len = 0; i < md->paramcount; i++) {
 204                 s1 = md->params[i].regoff;
 205                 t = md->paramtypes[i].type;
 206
 207                 varindex = jd->local_map[len * 5 + t];
 208
 209                 len += (IS_2_WORD_TYPE(t)) ? 2 : 1;          /* 2 word type arguments */
 210
 211                 if (varindex == UNUSED)
 212                         continue;
 213
 214                 var = VAR(varindex);
 215
 216                 /* ATTENTION: we use interger registers for all arguments (even float) */
 217 #if !defined(ENABLE_SOFTFLOAT)
 218                 if (IS_INT_LNG_TYPE(t)) {
 219 #endif
 220                         if (!md->params[i].inmemory) {
 221                                 if (!(var->flags & INMEMORY)) {
 222                                         if (IS_2_WORD_TYPE(t))
 223                                                 M_LNGMOVE(s1, var->vv.regoff);
 224                                         else
 225                                                 M_INTMOVE(s1, var->vv.regoff);
 226                                 }
 227                                 else {
 228                                         if (IS_2_WORD_TYPE(t))
 229                                                 M_LST(s1, REG_SP, var->vv.regoff);
 230                                         else
 231                                                 M_IST(s1, REG_SP, var->vv.regoff);
 232                                 }
 233                         }
 234                         else {                                   /* stack arguments       */
 235                                 if (!(var->flags & INMEMORY)) {      /* stack arg -> register */
 236                                         if (IS_2_WORD_TYPE(t))
 237                                                 M_LLD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 238                                         else
 239                                                 M_ILD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 240                                 }
 241                                 else {                               /* stack arg -> spilled  */
 242                                         /* Reuse Memory Position on Caller Stack */
 243                                         var->vv.regoff = cd->stackframesize + s1;
 244                                 }
 245                         }
 246 #if !defined(ENABLE_SOFTFLOAT)
 247                 }
 248                 else {
 249                         if (!md->params[i].inmemory) {
 250                                 if (!(var->flags & INMEMORY)) {
 251                                         M_CAST_INT_TO_FLT_TYPED(t, s1, var->vv.regoff);
 252                                 }
 253                                 else {
 254                                         if (IS_2_WORD_TYPE(t))
 255                                                 M_LST(s1, REG_SP, var->vv.regoff);
 256                                         else
 257                                                 M_IST(s1, REG_SP, var->vv.regoff);
 258                                 }
 259                         }
 260                         else {
 261                                 if (!(var->flags & INMEMORY)) {
 262                                         if (IS_2_WORD_TYPE(t))
 263                                                 M_DLD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 264                                         else
 265                                                 M_FLD(var->vv.regoff, REG_SP, cd->stackframesize + s1);
 266                                 }
 267                                 else {
 268                                         /* Reuse Memory Position on Caller Stack */
 269                                         var->vv.regoff = cd->stackframesize + s1;
 270                                 }
 271                         }
 272                 }
 273 #endif /* !defined(ENABLE_SOFTFLOAT) */
 274         }
 275
 276 #if defined(ENABLE_THREADS)
 277         /* call monitorenter function */
 278
 279         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
 280                 /* stack offset for monitor argument */
 281
 282                 s1 = rd->memuse * 8;
 283
 284 # if !defined(NDEBUG)
 285                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 286                         M_STMFD(BITMASK_ARGS, REG_SP);
 287                         s1 += 4 * 4;
 288                 }
 289 # endif
 290
 291                 /* get the correct lock object */
 292
 293                 if (m->flags & ACC_STATIC) {
 294                         disp = dseg_add_address(cd, &m->class->object.header);
 295                         M_DSEG_LOAD(REG_A0, disp);
 296                 }
 297                 else {
 298                         emit_nullpointer_check_force(cd, iptr, REG_A0);
 299                 }
 300
 301                 M_STR(REG_A0, REG_SP, s1);
 302                 disp = dseg_add_functionptr(cd, LOCK_monitor_enter);
 303                 M_DSEG_BRANCH(disp);
 304                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
 305                 M_RECOMPUTE_PV(s1);
 306
 307 # if !defined(NDEBUG)
 308                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
 309                         M_LDMFD(BITMASK_ARGS, REG_SP);
 310 # endif
 311         }
 312 #endif
 313
 314 #if !defined(NDEBUG)
 315         /* call trace function */
 316
 317         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
 318                 emit_verbosecall_enter(jd);
 319 #endif
 320
 321         /* end of header generation */
 322
 323         /* create replacement points */
 324         REPLACEMENT_POINTS_INIT(cd, jd);
 325
 326         /* SECTION: ICMD Code Generation */
 327         /* for all basic blocks */
 328
 329         for (bptr = jd->basicblocks; bptr != NULL; bptr = bptr->next) {
 330
 331                 bptr->mpc = (s4) (cd->mcodeptr - cd->mcodebase);
 332
 333                 /* is this basic block reached? */
 334
 335                 if (bptr->flags < BBREACHED)
 336                         continue;
 337
 338                 /* branch resolving */
 339
 340                 codegen_resolve_branchrefs(cd, bptr);
 341
 342                 /* handle replacement points */
 343                 REPLACEMENT_POINT_BLOCK_START(cd, bptr);
 344
 345                 /* copy interface registers to their destination */
 346
 347                 len = bptr->indepth;
 348
 349                 MCODECHECK(64+len);
 350
 351 #if defined(ENABLE_LSRA)
 352                 if (opt_lsra) {
 353                 while (len) {
 354                         len--;
 355                         var = VAR(bptr->invars[len]);
 356                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 357                                 if (!(var->flags & INMEMORY))
 358                                         d= var->vv.regoff;
 359                                 else
 360                                         d=REG_ITMP1;
 361                                 M_INTMOVE(REG_ITMP1, d);
 362                                 emit_store(jd, NULL, var, d);
 363                         }
 364                 }
 365                 } else {
 366 #endif
 367                 while (len) {
 368                         len--;
 369                         var = VAR(bptr->invars[len]);
 370
 371                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 372                                 d = codegen_reg_of_var(0, var, REG_ITMP1);
 373                                 M_INTMOVE(REG_ITMP1, d);
 374                                 emit_store(jd, NULL, var, d);
 375                         }
 376                         else {
 377                                 assert((var->flags & INOUT));
 378                         }
 379                 }
 380 #if defined(ENABLE_LSRA)
 381                 }
 382 #endif
 383
 384                 /* for all instructions */
 385                 len = bptr->icount;
 386                 currentline = 0;
 387                 for (iptr = bptr->iinstr; len > 0; len--, iptr++) {
 388
 389                         /* add line number */
 390                         if (iptr->line != currentline) {
 391                                 dseg_addlinenumber(cd, iptr->line);
 392                                 currentline = iptr->line;
 393                         }
 394
 395                         MCODECHECK(64);   /* an instruction usually needs < 64 words      */
 396
 397                         /* the big switch */
 398                         switch (iptr->opc) {
 399                 case ICMD_NOP:        /* ... ==> ...                                  */
 400                         break;
 401
 402         /* constant operations ************************************************/
 403
 404                 case ICMD_ICONST:     /* ...  ==> ..., constant                       */
 405
 406                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 407                         ICONST(d, iptr->sx.val.i);
 408                         emit_store_dst(jd, iptr, d);
 409                         break;
 410
 411                 case ICMD_ACONST:     /* ... ==> ..., constant                        */
 412
 413                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 414                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
 415                                 disp = dseg_add_unique_address(cd, NULL);
 416
 417                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
 418                                                     iptr->sx.val.c.ref, disp);
 419
 420                                 if (opt_showdisassemble)
 421                                         M_NOP;
 422
 423                                 M_DSEG_LOAD(d, disp);
 424                         }
 425                         else {
 426                                 ICONST(d, (u4) iptr->sx.val.anyptr);
 427                         }
 428                         emit_store_dst(jd, iptr, d);
 429                         break;
 430
 431                 case ICMD_LCONST:     /* ...  ==> ..., constant                       */
 432
 433                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 434                         LCONST(d, iptr->sx.val.l);
 435                         emit_store_dst(jd, iptr, d);
 436                         break;
 437
 438                 case ICMD_FCONST:     /* ...  ==> ..., constant                       */
 439
 440 #if defined(ENABLE_SOFTFLOAT)
 441                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 442                         ICONST(d, iptr->sx.val.i);
 443                         emit_store_dst(jd, iptr, d);
 444 #else
 445                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 446                         FCONST(d, iptr->sx.val.f);
 447                         emit_store_dst(jd, iptr, d);
 448 #endif
 449                         break;
 450
 451                 case ICMD_DCONST:     /* ...  ==> ..., constant                       */
 452
 453 #if defined(ENABLE_SOFTFLOAT)
 454                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 455                         LCONST(d, iptr->sx.val.l);
 456                         emit_store_dst(jd, iptr, d);
 457 #else
 458                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 459                         DCONST(d, iptr->sx.val.d);
 460                         emit_store_dst(jd, iptr, d);
 461 #endif
 462                         break;
 463
 464
 465                 /* load/store/copy/move operations ************************************/
 466
 467                 case ICMD_ILOAD:      /* ...  ==> ..., content of local variable      */
 468                 case ICMD_ALOAD:      /* op1 = local variable                         */
 469                 case ICMD_FLOAD:
 470                 case ICMD_LLOAD:
 471                 case ICMD_DLOAD:
 472                 case ICMD_ISTORE:     /* ..., value  ==> ...                          */
 473                 case ICMD_FSTORE:
 474                 case ICMD_LSTORE:
 475                 case ICMD_DSTORE:
 476                 case ICMD_COPY:
 477                 case ICMD_MOVE:
 478
 479                         emit_copy(jd, iptr);
 480                         break;
 481
 482                 case ICMD_ASTORE:
 483                         if (!(iptr->flags.bits & INS_FLAG_RETADDR))
 484                                 emit_copy(jd, iptr);
 485                         break;
 486
 487                 /* pop operations *****************************************************/
 488
 489                 /* attention: double and longs are only one entry in CACAO ICMDs      */
 490
 491                 case ICMD_POP:        /* ..., value  ==> ...                          */
 492                 case ICMD_POP2:       /* ..., value, value  ==> ...                   */
 493
 494                         break;
 495
 496
 497                 /* integer operations *************************************************/
 498
 499                 case ICMD_INT2BYTE:   /* ..., value  ==> ..., value                   */
 500
 501                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 502                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 503                         M_MOV(d, REG_LSL(s1, 24));
 504                         M_MOV(d, REG_ASR(d, 24));
 505                         emit_store_dst(jd, iptr, d);
 506                         break;
 507
 508                 case ICMD_INT2CHAR:   /* ..., value  ==> ..., value                   */
 509
 510                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 511                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 512                         M_MOV(d, REG_LSL(s1, 16));
 513                         M_MOV(d, REG_LSR(d, 16)); /* ATTENTION: char is unsigned */
 514                         emit_store_dst(jd, iptr, d);
 515                         break;
 516
 517                 case ICMD_INT2SHORT:  /* ..., value  ==> ..., value                   */
 518
 519                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 520                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 521                         M_MOV(d, REG_LSL(s1, 16));
 522                         M_MOV(d, REG_ASR(d, 16));
 523                         emit_store_dst(jd, iptr, d);
 524                         break;
 525
 526                 case ICMD_I2L:        /* ..., value  ==> ..., value                   */
 527
 528                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 529                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 530                         M_INTMOVE(s1, GET_LOW_REG(d));
 531                         M_MOV(GET_HIGH_REG(d), REG_ASR(s1, 31));
 532                         emit_store_dst(jd, iptr, d);
 533                         break;
 534
 535                 case ICMD_L2I:        /* ..., value  ==> ..., value                   */
 536
 537                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 538                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 539                         M_INTMOVE(s1, d);
 540                         emit_store_dst(jd, iptr, d);
 541                         break;
 542
 543                 case ICMD_INEG:       /* ..., value  ==> ..., - value                 */
 544
 545                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 546                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 547                         M_RSB_IMM(d, s1, 0);
 548                         emit_store_dst(jd, iptr, d);
 549                         break;
 550
 551                 case ICMD_LNEG:       /* ..., value  ==> ..., - value                 */
 552
 553                         s1 = emit_load_s1(jd, iptr, REG_ITMP12_PACKED);
 554                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 555                         M_RSB_IMMS(GET_LOW_REG(d), GET_LOW_REG(s1), 0);
 556                         M_RSC_IMM(GET_HIGH_REG(d), GET_HIGH_REG(s1), 0);
 557                         emit_store_dst(jd, iptr, d);
 558                         break;
 559
 560                 case ICMD_IADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 561
 562                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 563                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 564                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 565                         M_ADD(d, s1, s2);
 566                         emit_store_dst(jd, iptr, d);
 567                         break;
 568
 569                 case ICMD_LADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 570
 571                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 572                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 573                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 574                         M_ADD_S(GET_LOW_REG(d), s1, s2);
 575                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 576                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 577                         M_ADC(GET_HIGH_REG(d), s1, s2);
 578                         emit_store_dst(jd, iptr, d);
 579                         break;
 580
 581                 case ICMD_IADDCONST:
 582                 case ICMD_IINC:
 583
 584                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 585                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 586
 587                         if (IS_IMM(iptr->sx.val.i)) {
 588                                 M_ADD_IMM(d, s1, iptr->sx.val.i);
 589                         } else if (IS_IMM(-iptr->sx.val.i)) {
 590                                 M_SUB_IMM(d, s1, (-iptr->sx.val.i));
 591                         } else {
 592                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 593                                 M_ADD(d, s1, REG_ITMP3);
 594                         }
 595
 596                         emit_store_dst(jd, iptr, d);
 597                         break;
 598
 599                 case ICMD_LADDCONST:  /* ..., value  ==> ..., value + constant        */
 600                                       /* sx.val.l = constant                          */
 601
 602                         s3 = iptr->sx.val.l & 0xffffffff;
 603                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 604                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 605                         if (IS_IMM(s3))
 606                                 M_ADD_IMMS(GET_LOW_REG(d), s1, s3);
 607                         else {
 608                                 ICONST(REG_ITMP3, s3);
 609                                 M_ADD_S(GET_LOW_REG(d), s1, REG_ITMP3);
 610                         }
 611                         s3 = iptr->sx.val.l >> 32;
 612                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP2);
 613                         if (IS_IMM(s3))
 614                                 M_ADC_IMM(GET_HIGH_REG(d), s1, s3);
 615                         else {
 616                                 ICONST(REG_ITMP3, s3);
 617                                 M_ADC(GET_HIGH_REG(d), s1, REG_ITMP3);
 618                         }
 619                         emit_store_dst(jd, iptr, d);
 620                         break;
 621
 622                 case ICMD_ISUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 623
 624                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 625                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 626                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 627                         M_SUB(d, s1, s2);
 628                         emit_store_dst(jd, iptr, d);
 629                         break;
 630
 631                 case ICMD_LSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 632
 633                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 634                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 635                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 636                         M_SUB_S(GET_LOW_REG(d), s1, s2);
 637                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 638                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 639                         M_SBC(GET_HIGH_REG(d), s1, s2);
 640                         emit_store_dst(jd, iptr, d);
 641                         break;
 642
 643                 case ICMD_ISUBCONST:  /* ..., value  ==> ..., value + constant        */
 644                                       /* sx.val.i = constant                          */
 645
 646                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 647                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 648                         if (IS_IMM(iptr->sx.val.i))
 649                                 M_SUB_IMM(d, s1, iptr->sx.val.i);
 650                         else {
 651                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 652                                 M_SUB(d, s1, REG_ITMP3);
 653                         }
 654                         emit_store_dst(jd, iptr, d);
 655                         break;
 656
 657                 case ICMD_LSUBCONST:  /* ..., value  ==> ..., value - constant        */
 658                                       /* sx.val.l = constant                          */
 659
 660                         s3 = iptr->sx.val.l & 0xffffffff;
 661                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 662                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 663                         if (IS_IMM(s3))
 664                                 M_SUB_IMMS(GET_LOW_REG(d), s1, s3);
 665                         else {
 666                                 ICONST(REG_ITMP3, s3);
 667                                 M_SUB_S(GET_LOW_REG(d), s1, REG_ITMP3);
 668                         }
 669                         s3 = iptr->sx.val.l >> 32;
 670                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP2);
 671                         if (IS_IMM(s3))
 672                                 M_SBC_IMM(GET_HIGH_REG(d), s1, s3);
 673                         else {
 674                                 ICONST(REG_ITMP3, s3);
 675                                 M_SBC(GET_HIGH_REG(d), s1, REG_ITMP3);
 676                         }
 677                         emit_store_dst(jd, iptr, d);
 678                         break;
 679
 680                 case ICMD_IMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 681
 682                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 683                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 684                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 685                         M_MUL(d, s1, s2);
 686                         emit_store_dst(jd, iptr, d);
 687                         break;
 688
 689                 case ICMD_IDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 690                 case ICMD_IREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 691
 692                         s1 = emit_load_s1(jd, iptr, REG_A0);
 693                         s2 = emit_load_s2(jd, iptr, REG_A1);
 694                         emit_arithmetic_check(cd, iptr, s2);
 695
 696                         /* move arguments into argument registers */
 697                         M_INTMOVE(s1, REG_A0);
 698                         M_INTMOVE(s2, REG_A1);
 699
 700                         /* call builtin function */
 701                         bte = iptr->sx.s23.s3.bte;
 702                         disp = dseg_add_functionptr(cd, bte->fp);
 703                         M_DSEG_BRANCH(disp);
 704
 705                         /* recompute pv */
 706                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
 707                         M_RECOMPUTE_PV(s1);
 708
 709                         /* move result into destination register */
 710                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
 711                         M_INTMOVE(REG_RESULT, d);
 712                         emit_store_dst(jd, iptr, d);
 713                         break;
 714
 715                 case ICMD_LDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 716                 case ICMD_LREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 717
 718                         /* move arguments into argument registers */
 719
 720                         s1 = emit_load_s1(jd, iptr, REG_A0_A1_PACKED);
 721                         s2 = emit_load_s2(jd, iptr, REG_A2_A3_PACKED);
 722                         /* XXX TODO: only do this if arithmetic check is really done! */
 723                         M_ORR(GET_HIGH_REG(s2), GET_LOW_REG(s2), REG_ITMP3);
 724                         emit_arithmetic_check(cd, iptr, REG_ITMP3);
 725
 726                         M_LNGMOVE(s1, REG_A0_A1_PACKED);
 727                         M_LNGMOVE(s2, REG_A2_A3_PACKED);
 728
 729                         /* call builtin function */
 730                         bte = iptr->sx.s23.s3.bte;
 731                         disp = dseg_add_functionptr(cd, bte->fp);
 732                         M_DSEG_BRANCH(disp);
 733
 734                         /* recompute pv */
 735                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
 736                         M_RECOMPUTE_PV(s1);
 737
 738                         /* move result into destination register */
 739                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
 740                         M_LNGMOVE(REG_RESULT_PACKED, d);
 741                         emit_store_dst(jd, iptr, d);
 742                         break;
 743
 744                 case ICMD_IMULPOW2:   /* ..., value  ==> ..., value * (2 ^ constant)  */
 745                                       /* sx.val.i = constant                          */
 746
 747                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 748                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 749                         M_MOV(d, REG_LSL(s1, iptr->sx.val.i));
 750                         emit_store_dst(jd, iptr, d);
 751                         break;
 752
 753                 case ICMD_IDIVPOW2:   /* ..., value  ==> ..., value / (2 ^ constant)  */
 754                                       /* sx.val.i = constant                          */
 755
 756                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 757                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 758                         /* this rounds towards 0 as java likes it */
 759                         M_MOV(REG_ITMP3, REG_ASR(s1, 31));
 760                         M_ADD(REG_ITMP3, s1, REG_LSR(REG_ITMP3, 32 - iptr->sx.val.i));
 761                         M_MOV(d, REG_ASR(REG_ITMP3, iptr->sx.val.i));
 762                         /* this rounds towards nearest, not java style */
 763                         /*M_MOV_S(d, REG_ASR(s1, iptr->sx.val.i));
 764                         M_ADCMI_IMM(d, d, 0);*/
 765                         emit_store_dst(jd, iptr, d);
 766                         break;
 767
 768                 case ICMD_IREMPOW2:   /* ..., value  ==> ..., value % constant        */
 769                                       /* sx.val.i = constant [ (2 ^ x) - 1 ]          */
 770
 771                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 772                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 773                         M_MOV_S(REG_ITMP1, s1);
 774                         M_RSBMI_IMM(REG_ITMP1, REG_ITMP1, 0);
 775                         if (IS_IMM(iptr->sx.val.i))
 776                                 M_AND_IMM(REG_ITMP1, iptr->sx.val.i, d);
 777                         else {
 778                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 779                                 M_AND(REG_ITMP1, REG_ITMP3, d);
 780                         }
 781                         M_RSBMI_IMM(d, d, 0);
 782                         emit_store_dst(jd, iptr, d);
 783                         break;
 784
 785                 case ICMD_ISHL:       /* ..., val1, val2  ==> ..., val1 << val2       */
 786
 787                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 788                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 789                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 790                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 791                         M_MOV(d, REG_LSL_REG(s1, REG_ITMP2));
 792                         emit_store_dst(jd, iptr, d);
 793                         break;
 794
 795                 case ICMD_ISHR:       /* ..., val1, val2  ==> ..., val1 >> val2       */
 796
 797                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 798                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 799                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 800                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 801                         M_MOV(d, REG_ASR_REG(s1, REG_ITMP2));
 802                         emit_store_dst(jd, iptr, d);
 803                         break;
 804
 805                 case ICMD_IUSHR:      /* ..., val1, val2  ==> ..., val1 >>> val2      */
 806
 807                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 808                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 809                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 810                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 811                         M_MOV(d, REG_LSR_REG(s1, REG_ITMP2));
 812                         emit_store_dst(jd, iptr, d);
 813                         break;
 814
 815                 case ICMD_ISHLCONST:  /* ..., value  ==> ..., value << constant       */
 816                                       /* sx.val.i = constant                          */
 817
 818                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 819                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 820                         M_MOV(d, REG_LSL(s1, iptr->sx.val.i & 0x1f));
 821                         emit_store_dst(jd, iptr, d);
 822                         break;
 823
 824                 case ICMD_ISHRCONST:  /* ..., value  ==> ..., value >> constant       */
 825                                       /* sx.val.i = constant                          */
 826
 827                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 828                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 829                         /* we need to check for zero here because arm interprets it as SHR by 32 */
 830                         if ((iptr->sx.val.i & 0x1f) == 0) {
 831                                 M_INTMOVE(s1, d);
 832                         } else {
 833                                 M_MOV(d, REG_ASR(s1, iptr->sx.val.i & 0x1f));
 834                         }
 835                         emit_store_dst(jd, iptr, d);
 836                         break;
 837
 838                 case ICMD_IUSHRCONST: /* ..., value  ==> ..., value >>> constant      */
 839                                       /* sx.val.i = constant                          */
 840
 841                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 842                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 843                         /* we need to check for zero here because arm interprets it as SHR by 32 */
 844                         if ((iptr->sx.val.i & 0x1f) == 0)
 845                                 M_INTMOVE(s1, d);
 846                         else
 847                                 M_MOV(d, REG_LSR(s1, iptr->sx.val.i & 0x1f));
 848                         emit_store_dst(jd, iptr, d);
 849                         break;
 850
 851                 case ICMD_IAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 852
 853                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 854                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 855                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 856                         M_AND(s1, s2, d);
 857                         emit_store_dst(jd, iptr, d);
 858                         break;
 859
 860                 case ICMD_LAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 861
 862                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 863                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 864                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 865                         M_AND(s1, s2, GET_LOW_REG(d));
 866                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 867                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 868                         M_AND(s1, s2, GET_HIGH_REG(d));
 869                         emit_store_dst(jd, iptr, d);
 870                         break;
 871
 872                 case ICMD_IOR:        /* ..., val1, val2  ==> ..., val1 | val2        */
 873
 874                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 875                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 876                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 877                         M_ORR(s1, s2, d);
 878                         emit_store_dst(jd, iptr, d);
 879                         break;
 880
 881                 case ICMD_LOR:       /* ..., val1, val2  ==> ..., val1 | val2        */
 882
 883                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 884                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 885                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 886                         M_ORR(s1, s2, GET_LOW_REG(d));
 887                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 888                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 889                         M_ORR(s1, s2, GET_HIGH_REG(d));
 890                         emit_store_dst(jd, iptr, d);
 891                         break;
 892
 893                 case ICMD_IXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
 894
 895                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 896                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 897                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 898                         M_EOR(s1, s2, d);
 899                         emit_store_dst(jd, iptr, d);
 900                         break;
 901
 902                 case ICMD_LXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
 903
 904                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
 905                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP1);
 906                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 907                         M_EOR(s1, s2, GET_LOW_REG(d));
 908                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
 909                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
 910                         M_EOR(s1, s2, GET_HIGH_REG(d));
 911                         emit_store_dst(jd, iptr, d);
 912                         break;
 913
 914
 915         /* floating operations ************************************************/
 916
 917 #if !defined(ENABLE_SOFTFLOAT)
 918
 919                 case ICMD_FNEG:       /* ..., value  ==> ..., - value                 */
 920
 921                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 922                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 923                         M_MNFS(d, s1);
 924                         emit_store_dst(jd, iptr, d);
 925                         break;
 926
 927                 case ICMD_FADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 928
 929                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 930                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 931                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 932                         M_ADFS(d, s1, s2);
 933                         emit_store_dst(jd, iptr, d);
 934                         break;
 935
 936                 case ICMD_FSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 937
 938                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 939                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 940                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 941                         M_SUFS(d, s1, s2);
 942                         emit_store_dst(jd, iptr, d);
 943                         break;
 944
 945                 case ICMD_FMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 946
 947                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 948                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 949                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 950                         M_MUFS(d, s1, s2);
 951                         emit_store_dst(jd, iptr, d);
 952                         break;
 953
 954                 case ICMD_FDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 955                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 956                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 957                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 958                         M_DVFS(d, s1, s2);
 959                         emit_store_dst(jd, iptr, d);
 960                         break;
 961
 962                 /* ATTENTION: Jave does not want IEEE behaviour in FREM, do
 963                    not use this */
 964
 965                 case ICMD_FREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 966
 967                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 968                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 969                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 970                         M_RMFS(d, s1, s2);
 971                         emit_store_dst(jd, iptr, d);
 972                         break;
 973
 974                 case ICMD_DNEG:       /* ..., value  ==> ..., - value                 */
 975
 976                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 977                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 978                         M_MNFD(d, s1);
 979                         emit_store_dst(jd, iptr, d);
 980                         break;
 981
 982                 case ICMD_DADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 983
 984                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 985                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 986                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 987                         M_ADFD(d, s1, s2);
 988                         emit_store_dst(jd, iptr, d);
 989                         break;
 990
 991                 case ICMD_DSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 992
 993                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 994                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 995                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 996                         M_SUFD(d, s1, s2);
 997                         emit_store_dst(jd, iptr, d);
 998                         break;
 999
1000                 case ICMD_DMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1001
1002                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1003                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1004                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1005                         M_MUFD(d, s1, s2);
1006                         emit_store_dst(jd, iptr, d);
1007                         break;
1008
1009                 case ICMD_DDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1010
1011                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1012                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1013                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1014                         M_DVFD(d, s1, s2);
1015                         emit_store_dst(jd, iptr, d);
1016                         break;
1017
1018                 /* ATTENTION: Jave does not want IEEE behaviour in DREM, do
1019                    not use this */
1020
1021                 case ICMD_DREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
1022
1023                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1024                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1025                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1026                         M_RMFD(d, s1, s2);
1027                         emit_store_dst(jd, iptr, d);
1028                         break;
1029
1030                 case ICMD_I2F:       /* ..., value  ==> ..., (float) value            */
1031
1032                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1033                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1034                         M_FLTS(d, s1);
1035                         emit_store_dst(jd, iptr, d);
1036                         break;
1037
1038                 case ICMD_I2D:       /* ..., value  ==> ..., (double) value           */
1039
1040                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1041                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1042                         M_FLTD(d, s1);
1043                         emit_store_dst(jd, iptr, d);
1044                         break;
1045
1046                 case ICMD_F2I:       /* ..., value  ==> ..., (int) value              */
1047
1048                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1049                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1050                         /* this uses round towards zero, as Java likes it */
1051                         M_FIX(d, s1);
1052                         /* this checks for NaN; to return zero as Java likes it */
1053                         M_CMF(s1, 0x8);
1054                         M_MOVVS_IMM(0, d);
1055                         emit_store_dst(jd, iptr, d);
1056                         break;
1057
1058                 case ICMD_D2I:       /* ..., value  ==> ..., (int) value              */
1059
1060                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1061                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1062                         /* this uses round towards zero, as Java likes it */
1063                         M_FIX(d, s1);
1064                         /* this checks for NaN; to return zero as Java likes it */
1065                         M_CMF(s1, 0x8);
1066                         M_MOVVS_IMM(0, d);
1067                         emit_store_dst(jd, iptr, d);
1068                         break;
1069
1070                 case ICMD_D2F:       /* ..., value  ==> ..., (float) value            */
1071
1072                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1073                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1074                         M_MVFS(d,s1);
1075                         emit_store_dst(jd, iptr, d);
1076                         break;
1077
1078                 case ICMD_F2D:       /* ..., value  ==> ..., (double) value           */
1079
1080                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1081                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1082                         M_MVFD(d,s1);
1083                         emit_store_dst(jd, iptr, d);
1084                         break;
1085
1086                 case ICMD_FCMPG:      /* ..., val1, val2  ==> ..., val1 fcmpg val2    */
1087
1088                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1089                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1090                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1091                         M_CMF(s2, s1);
1092                         M_MOV_IMM(d, 0);
1093                         M_SUBGT_IMM(d, d, 1);
1094                         M_ADDLT_IMM(d, d, 1);
1095                         emit_store_dst(jd, iptr, d);
1096                         break;
1097
1098                 case ICMD_DCMPG:      /* ..., val1, val2  ==> ..., val1 dcmpg val2    */
1099
1100                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1101                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1102                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1103                         M_CMF(s2, s1);
1104                         M_MOV_IMM(d, 0);
1105                         M_SUBGT_IMM(d, d, 1);
1106                         M_ADDLT_IMM(d, d, 1);
1107                         emit_store_dst(jd, iptr, d);
1108                         break;
1109
1110                 case ICMD_FCMPL:      /* ..., val1, val2  ==> ..., val1 fcmpl val2    */
1111
1112                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1113                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1114                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1115                         M_CMF(s1, s2);
1116                         M_MOV_IMM(d, 0);
1117                         M_SUBLT_IMM(d, d, 1);
1118                         M_ADDGT_IMM(d, d, 1);
1119                         emit_store_dst(jd, iptr, d);
1120                         break;
1121
1122                 case ICMD_DCMPL:      /* ..., val1, val2  ==> ..., val1 dcmpl val2    */
1123
1124                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1125                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1126                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1127                         M_CMF(s1, s2);
1128                         M_MOV_IMM(d, 0);
1129                         M_SUBLT_IMM(d, d, 1);
1130                         M_ADDGT_IMM(d, d, 1);
1131                         emit_store_dst(jd, iptr, d);
1132                         break;
1133
1134 #endif /* !defined(ENABLE_SOFTFLOAT) */
1135
1136
1137                 /* memory operations **************************************************/
1138
1139                 case ICMD_ARRAYLENGTH: /* ..., arrayref  ==> ..., length              */
1140
1141                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1142                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1143                         /* implicit null-pointer check */
1144                         M_ILD_INTERN(d, s1, OFFSET(java_arrayheader, size));
1145                         emit_store_dst(jd, iptr, d);
1146                         break;
1147
1148                 case ICMD_BALOAD:     /* ..., arrayref, index  ==> ..., value         */
1149
1150                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1151                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1152                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1153                         /* implicit null-pointer check */
1154                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1155                         M_ADD(REG_ITMP1, s1, s2); /* REG_ITMP1 = s1 + 1 * s2 */
1156                         M_LDRSB(d, REG_ITMP1, OFFSET(java_bytearray, data[0]));
1157                         emit_store_dst(jd, iptr, d);
1158                         break;
1159
1160                 case ICMD_CALOAD:     /* ..., arrayref, index  ==> ..., value         */
1161
1162                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1163                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1164                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1165                         /* implicit null-pointer check */
1166                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1167                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1168                         M_LDRH(d, REG_ITMP1, OFFSET(java_chararray, data[0]));
1169                         emit_store_dst(jd, iptr, d);
1170                         break;
1171
1172                 case ICMD_SALOAD:     /* ..., arrayref, index  ==> ..., value         */
1173
1174                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1175                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1176                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1177                         /* implicit null-pointer check */
1178                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1179                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1180                         M_LDRSH(d, REG_ITMP1, OFFSET(java_shortarray, data[0]));
1181                         emit_store_dst(jd, iptr, d);
1182                         break;
1183
1184                 case ICMD_IALOAD:     /* ..., arrayref, index  ==> ..., value         */
1185
1186                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1187                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1188                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1189                         /* implicit null-pointer check */
1190                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1191                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1192                         M_ILD_INTERN(d, REG_ITMP1, OFFSET(java_intarray, data[0]));
1193                         emit_store_dst(jd, iptr, d);
1194                         break;
1195
1196                 case ICMD_LALOAD:     /* ..., arrayref, index  ==> ..., value         */
1197
1198                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1199                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1200                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1201                         /* implicit null-pointer check */
1202                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1203                         M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1204                         M_LLD_INTERN(d, REG_ITMP3, OFFSET(java_longarray, data[0]));
1205                         emit_store_dst(jd, iptr, d);
1206                         break;
1207
1208                 case ICMD_FALOAD:     /* ..., arrayref, index  ==> ..., value         */
1209
1210                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1211                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1212                         /* implicit null-pointer check */
1213                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1214                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1215 #if !defined(ENABLE_SOFTFLOAT)
1216                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1217                         M_FLD_INTERN(d, REG_ITMP1, OFFSET(java_floatarray, data[0]));
1218 #else
1219                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1220                         M_ILD_INTERN(d, REG_ITMP1, OFFSET(java_floatarray, data[0]));
1221 #endif
1222                         emit_store_dst(jd, iptr, d);
1223                         break;
1224
1225                 case ICMD_DALOAD:     /* ..., arrayref, index  ==> ..., value         */
1226
1227                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1228                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1229                         /* implicit null-pointer check */
1230                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1231                         M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1232 #if !defined(ENABLE_SOFTFLOAT)
1233                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1234                         M_DLD_INTERN(d, REG_ITMP3, OFFSET(java_doublearray, data[0]));
1235 #else
1236                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1237                         M_LLD_INTERN(d, REG_ITMP3, OFFSET(java_doublearray, data[0]));
1238 #endif
1239                         emit_store_dst(jd, iptr, d);
1240                         break;
1241
1242                 case ICMD_AALOAD:     /* ..., arrayref, index  ==> ..., value         */
1243
1244                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1245                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1246                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1247                         /* implicit null-pointer check */
1248                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1249                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1250                         M_LDR_INTERN(d, REG_ITMP1, OFFSET(java_objectarray, data[0]));
1251                         emit_store_dst(jd, iptr, d);
1252                         break;
1253
1254                 case ICMD_BASTORE:    /* ..., arrayref, index, value  ==> ...         */
1255
1256                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1257                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1258                         /* implicit null-pointer check */
1259                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1260                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1261                         M_ADD(REG_ITMP1, s1, s2); /* REG_ITMP1 = s1 + 1 * s2 */
1262                         M_STRB(s3, REG_ITMP1, OFFSET(java_bytearray, data[0]));
1263                         break;
1264
1265                 case ICMD_CASTORE:    /* ..., arrayref, index, value  ==> ...         */
1266
1267                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1268                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1269                         /* implicit null-pointer check */
1270                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1271                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1272                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1273                         M_STRH(s3, REG_ITMP1, OFFSET(java_chararray, data[0]));
1274                         break;
1275
1276                 case ICMD_SASTORE:    /* ..., arrayref, index, value  ==> ...         */
1277
1278                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1279                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1280                         /* implicit null-pointer check */
1281                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1282                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1283                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
1284                         M_STRH(s3, REG_ITMP1, OFFSET(java_shortarray, data[0]));
1285                         break;
1286
1287                 case ICMD_IASTORE:    /* ..., arrayref, index, value  ==> ...         */
1288
1289                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1290                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1291                         /* implicit null-pointer check */
1292                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1293                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1294                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1295                         M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_intarray, data[0]));
1296                         break;
1297
1298                 case ICMD_LASTORE:    /* ..., arrayref, index, value  ==> ...         */
1299
1300                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1301                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1302                         /* implicit null-pointer check */
1303                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1304                         M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
1305                         s3 = emit_load_s3(jd, iptr, REG_ITMP12_PACKED);
1306                         M_LST_INTERN(s3, REG_ITMP3, OFFSET(java_longarray, data[0]));
1307                         break;
1308
1309                 case ICMD_FASTORE:    /* ..., arrayref, index, value  ==> ...         */
1310
1311                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1312                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1313                         /* implicit null-pointer check */
1314                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1315                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1316 #if !defined(ENABLE_SOFTFLOAT)
1317                         s3 = emit_load_s3(jd, iptr, REG_FTMP1);
1318                         M_FST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray, data[0]));
1319 #else
1320                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1321                         M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray, data[0]));
1322 #endif
1323                         break;
1324
1325                 case ICMD_DASTORE:    /* ..., arrayref, index, value  ==> ...         */
1326
1327                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1328                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1329                         /* implicit null-pointer check */
1330                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1331                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 3)); /* REG_ITMP1 = s1 + 8 * s2 */
1332 #if !defined(ENABLE_SOFTFLOAT)
1333                         s3 = emit_load_s3(jd, iptr, REG_FTMP1);
1334                         M_DST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray, data[0]));
1335 #else
1336                         s3 = emit_load_s3(jd, iptr, REG_ITMP23_PACKED);
1337                         M_LST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray, data[0]));
1338 #endif
1339                         break;
1340
1341                 case ICMD_AASTORE:    /* ..., arrayref, index, value  ==> ...         */
1342
1343                         s1 = emit_load_s1(jd, iptr, REG_A0);
1344                         s2 = emit_load_s2(jd, iptr, REG_ITMP1);
1345                         s3 = emit_load_s3(jd, iptr, REG_A1);
1346
1347                         /* implicit null-pointer check */
1348                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1349
1350                         /* move arguments to argument registers */
1351                         M_INTMOVE(s1, REG_A0);
1352                         M_INTMOVE(s3, REG_A1);
1353
1354                         /* call builtin function */
1355                         disp = dseg_add_functionptr(cd, BUILTIN_canstore);
1356                         M_DSEG_BRANCH(disp);
1357
1358                         /* recompute pv */
1359                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
1360                         M_RECOMPUTE_PV(s1);
1361
1362                         /* check resturn value of builtin */
1363                         emit_exception_check(cd, iptr);
1364
1365                         /* finally store address into array */
1366                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1367                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1368                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1369                         M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
1370                         M_STR_INTERN(s3, REG_ITMP1, OFFSET(java_objectarray, data[0]));
1371                         break;
1372
1373                 case ICMD_GETSTATIC:  /* ...  ==> ..., value                          */
1374
1375                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1376                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1377
1378                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1379
1380                                 disp = dseg_add_unique_address(cd, NULL);
1381
1382                                 patcher_add_patch_ref(jd, PATCHER_get_putstatic, uf, disp);
1383
1384                                 if (opt_showdisassemble)
1385                                         M_NOP;
1386                         }
1387                         else {
1388                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1389
1390                                 fieldtype = fi->type;
1391
1392                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1393                                         patcher_add_patch_ref(jd, PATCHER_initialize_class,
1394                                                             fi->class, 0);
1395
1396                                         if (opt_showdisassemble)
1397                                                 M_NOP;
1398                                 }
1399
1400                                 disp = dseg_add_address(cd, &(fi->value));
1401                         }
1402
1403                         M_DSEG_LOAD(REG_ITMP3, disp);
1404                         switch (fieldtype) {
1405                         case TYPE_INT:
1406 #if defined(ENABLE_SOFTFLOAT)
1407                         case TYPE_FLT:
1408 #endif
1409                         case TYPE_ADR:
1410                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1411                                 M_ILD_INTERN(d, REG_ITMP3, 0);
1412                                 break;
1413                         case TYPE_LNG:
1414 #if defined(ENABLE_SOFTFLOAT)
1415                         case TYPE_DBL:
1416 #endif
1417                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1418                                 M_LLD_INTERN(d, REG_ITMP3, 0);
1419                                 break;
1420 #if !defined(ENABLE_SOFTFLOAT)
1421                         case TYPE_FLT:
1422                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1423                                 M_FLD_INTERN(d, REG_ITMP3, 0);
1424                                 break;
1425                         case TYPE_DBL:
1426                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1427                                 M_DLD_INTERN(d, REG_ITMP3, 0);
1428                                 break;
1429 #endif
1430                         default:
1431                                 assert(0);
1432                         }
1433                         emit_store_dst(jd, iptr, d);
1434                         break;
1435
1436                 case ICMD_PUTSTATIC:  /* ..., value  ==> ...                          */
1437
1438                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1439                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1440
1441                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1442
1443                                 disp = dseg_add_unique_address(cd, NULL);
1444
1445                                 patcher_add_patch_ref(jd, PATCHER_get_putstatic, uf, disp);
1446
1447                                 if (opt_showdisassemble)
1448                                         M_NOP;
1449                         }
1450                         else {
1451                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1452
1453                                 fieldtype = fi->type;
1454
1455                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1456                                         patcher_add_patch_ref(jd, PATCHER_initialize_class,
1457                                                             fi->class, 0);
1458
1459                                         if (opt_showdisassemble)
1460                                                 M_NOP;
1461                                 }
1462
1463                                 disp = dseg_add_address(cd, &(fi->value));
1464                         }
1465
1466                         M_DSEG_LOAD(REG_ITMP3, disp);
1467                         switch (fieldtype) {
1468                         case TYPE_INT:
1469 #if defined(ENABLE_SOFTFLOAT)
1470                         case TYPE_FLT:
1471 #endif
1472                         case TYPE_ADR:
1473                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1474                                 M_IST_INTERN(s1, REG_ITMP3, 0);
1475                                 break;
1476                         case TYPE_LNG:
1477 #if defined(ENABLE_SOFTFLOAT)
1478                         case TYPE_DBL:
1479 #endif
1480                                 s1 = emit_load_s1(jd, iptr, REG_ITMP12_PACKED);
1481                                 M_LST_INTERN(s1, REG_ITMP3, 0);
1482                                 break;
1483 #if !defined(ENABLE_SOFTFLOAT)
1484                         case TYPE_FLT:
1485                                 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1486                                 M_FST_INTERN(s1, REG_ITMP3, 0);
1487                                 break;
1488                         case TYPE_DBL:
1489                                 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1490                                 M_DST_INTERN(s1, REG_ITMP3, 0);
1491                                 break;
1492 #endif
1493                         default:
1494                                 assert(0);
1495                         }
1496                         break;
1497
1498                 case ICMD_GETFIELD:   /* ..., objectref, value  ==> ...               */
1499
1500                         s1 = emit_load_s1(jd, iptr, REG_ITMP3);
1501                         emit_nullpointer_check(cd, iptr, s1);
1502
1503
1504                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1505                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1506
1507                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1508                         }
1509                         else {
1510                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1511
1512                                 fieldtype = fi->type;
1513                                 disp      = fi->offset;
1514                         }
1515
1516 #if !defined(ENABLE_SOFTFLOAT)
1517                         /* HACK: softnull checks on floats */
1518                         if (!INSTRUCTION_MUST_CHECK(iptr) && IS_FLT_DBL_TYPE(fieldtype))
1519                                 emit_nullpointer_check_force(cd, iptr, s1);
1520 #endif
1521
1522                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1523                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1524
1525                                 patcher_add_patch_ref(jd, PATCHER_get_putfield, uf, 0);
1526
1527                                 if (opt_showdisassemble)
1528                                         M_NOP;
1529
1530                                 disp = 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                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1572
1573                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1574                         }
1575                         else {
1576                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1577
1578                                 fieldtype = fi->type;
1579                                 disp      = fi->offset;
1580                         }
1581
1582 #if !defined(ENABLE_SOFTFLOAT)
1583                         /* HACK: softnull checks on floats */
1584                         if (!INSTRUCTION_MUST_CHECK(iptr) && IS_FLT_DBL_TYPE(fieldtype))
1585                                 emit_nullpointer_check_force(cd, iptr, s1);
1586 #endif
1587
1588                         switch (fieldtype) {
1589                         case TYPE_INT:
1590 #if defined(ENABLE_SOFTFLOAT)
1591                         case TYPE_FLT:
1592 #endif
1593                         case TYPE_ADR:
1594                                 s2 = emit_load_s2(jd, iptr, REG_ITMP1);
1595                                 break;
1596 #if defined(ENABLE_SOFTFLOAT)
1597                         case TYPE_DBL: /* fall through */
1598 #endif
1599                         case TYPE_LNG:
1600                                 s2 = emit_load_s2(jd, iptr, REG_ITMP12_PACKED);
1601                                 break;
1602 #if !defined(ENABLE_SOFTFLOAT)
1603                         case TYPE_FLT:
1604                         case TYPE_DBL:
1605                                 s2 = emit_load_s2(jd, iptr, REG_FTMP1);
1606                                 break;
1607 #endif
1608                         default:
1609                                 assert(0);
1610                         }
1611
1612                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1613                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1614
1615                                 patcher_add_patch_ref(jd, PATCHER_get_putfield, uf, 0);
1616
1617                                 if (opt_showdisassemble)
1618                                         M_NOP;
1619
1620                                 disp = 0;
1621                         }
1622
1623                         switch (fieldtype) {
1624                         case TYPE_INT:
1625 #if defined(ENABLE_SOFTFLOAT)
1626                         case TYPE_FLT:
1627 #endif
1628                         case TYPE_ADR:
1629                                 M_IST(s2, s1, disp);
1630                                 break;
1631                         case TYPE_LNG:
1632 #if defined(ENABLE_SOFTFLOAT)
1633                         case TYPE_DBL:
1634 #endif
1635                                 M_LST(s2, s1, disp);
1636                                 break;
1637 #if !defined(ENABLE_SOFTFLOAT)
1638                         case TYPE_FLT:
1639                                 M_FST(s2, s1, disp);
1640                                 break;
1641                         case TYPE_DBL:
1642                                 M_DST(s2, s1, disp);
1643                                 break;
1644 #endif
1645                         default:
1646                                 assert(0);
1647                         }
1648                         break;
1649
1650
1651                 /* branch operations **************************************************/
1652
1653                 case ICMD_ATHROW:       /* ..., objectref ==> ... (, objectref)       */
1654
1655                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1656                         M_INTMOVE(s1, REG_ITMP1_XPTR);
1657                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1658                                 patcher_add_patch_ref(jd, PATCHER_resolve_class,
1659                                                                         iptr->sx.s23.s2.uc, 0);
1660
1661                                 if (opt_showdisassemble)
1662                                         M_NOP;
1663                         }
1664                         disp = dseg_add_functionptr(cd, asm_handle_exception);
1665                         M_DSEG_LOAD(REG_ITMP3, disp);
1666                         M_MOV(REG_ITMP2_XPC, REG_PC);
1667                         M_MOV(REG_PC, REG_ITMP3);
1668                         M_NOP;              /* nop ensures that XPC is less than the end  */
1669                                             /* of basic block                             */
1670                         break;
1671
1672                 case ICMD_GOTO:         /* ... ==> ...                                */
1673                 case ICMD_RET:
1674
1675                         emit_br(cd, iptr->dst.block);
1676                         break;
1677
1678                 case ICMD_JSR:          /* ... ==> ...                                */
1679
1680                         emit_br(cd, iptr->sx.s23.s3.jsrtarget.block);
1681                         break;
1682
1683                 case ICMD_IFNULL:       /* ..., value ==> ...                         */
1684                 case ICMD_IFNONNULL:
1685
1686                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1687                         M_TEQ_IMM(s1, 0);
1688                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFNULL, BRANCH_OPT_NONE);
1689                         break;
1690
1691                 case ICMD_IFLT:         /* ..., value ==> ...                         */
1692                 case ICMD_IFLE:         /* op1 = target JavaVM pc, val.i = constant   */
1693                 case ICMD_IFGT:
1694                 case ICMD_IFGE:
1695                 case ICMD_IFEQ:
1696                 case ICMD_IFNE:
1697
1698                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1699                         M_COMPARE(s1, iptr->sx.val.i);
1700                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFEQ, BRANCH_OPT_NONE);
1701                         break;
1702
1703                 case ICMD_IF_LEQ:       /* ..., value ==> ...                         */
1704
1705                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1706                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1707                         if (iptr->sx.val.l == 0) {
1708                                 M_ORR_S(s1, s2, REG_ITMP3);
1709                         }
1710                         else {
1711                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1712                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1713                                 M_CMP(s1, REG_ITMP3);*/
1714                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1715                                 M_CMPEQ(s2, REG_ITMP3);
1716                         }
1717                         emit_beq(cd, iptr->dst.block);
1718                         break;
1719
1720                 case ICMD_IF_LLT:       /* ..., value ==> ...                         */
1721
1722                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1723                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1724                         if (iptr->sx.val.l == 0) {
1725                                 /* if high word is less than zero, the whole long is too */
1726                                 M_CMP_IMM(s1, 0);
1727                                 emit_blt(cd, iptr->dst.block);
1728                         }
1729                         else {
1730                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1731                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1732                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1733                                 M_CMP(s1, REG_ITMP3);*/
1734                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1735                                 M_MOVGT_IMM(2, REG_ITMP1);
1736                                 M_MOVEQ_IMM(1, REG_ITMP1);
1737
1738                                 /* low compare: x=x-1(ifLO) */
1739                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1740                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1741                                 M_CMP(s2, REG_ITMP3);*/
1742                                 M_SUBLO_IMM(REG_ITMP1, REG_ITMP1, 1);
1743
1744                                 /* branch if (x LT 1) */
1745                                 M_CMP_IMM(REG_ITMP1, 1);
1746                                 emit_blt(cd, iptr->dst.block);
1747                         }
1748                         break;
1749
1750                 case ICMD_IF_LLE:       /* ..., value ==> ...                         */
1751
1752                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1753                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1754                         if (iptr->sx.val.l == 0) {
1755                                 /* if high word is less than zero, the whole long is too  */
1756                                 M_CMP_IMM(s1, 0);
1757                                 emit_blt(cd, iptr->dst.block);
1758
1759                                 /* ... otherwise the low word has to be zero (tricky!) */
1760                                 M_CMPEQ_IMM(s2, 0);
1761                                 emit_beq(cd, iptr->dst.block);
1762                         }
1763                         else {
1764                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1765                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1766                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1767                                 M_CMP(s1, REG_ITMP3);*/
1768                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1769                                 M_MOVGT_IMM(2, REG_ITMP1);
1770                                 M_MOVEQ_IMM(1, REG_ITMP1);
1771
1772                                 /* low compare: x=x+1(ifHI) */
1773                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1774                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1775                                 M_CMP(s2, REG_ITMP3);*/
1776                                 M_ADDHI_IMM(REG_ITMP1, REG_ITMP1, 1);
1777
1778                                 /* branch if (x LE 1) */
1779                                 M_CMP_IMM(REG_ITMP1, 1);
1780                                 emit_ble(cd, iptr->dst.block);
1781                         }
1782                         break;
1783
1784                 case ICMD_IF_LGE:       /* ..., value ==> ...                         */
1785
1786                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1787                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1788                         if (iptr->sx.val.l == 0) {
1789                                 /* if high word is greater or equal zero, the whole long is too */
1790                                 M_CMP_IMM(s1, 0);
1791                                 emit_bge(cd, iptr->dst.block);
1792                         }
1793                         else {
1794                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1795                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1796                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1797                                 M_CMP(s1, REG_ITMP3);*/
1798                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1799                                 M_MOVGT_IMM(2, REG_ITMP1);
1800                                 M_MOVEQ_IMM(1, REG_ITMP1);
1801
1802                                 /* low compare: x=x-1(ifLO) */
1803                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1804                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1805                                 M_CMP(s2, REG_ITMP3);*/
1806                                 M_SUBLO_IMM(REG_ITMP1, REG_ITMP1, 1);
1807
1808                                 /* branch if (x GE 1) */
1809                                 M_CMP_IMM(REG_ITMP1, 1);
1810                                 emit_bge(cd, iptr->dst.block);
1811                         }
1812                         break;
1813
1814                 case ICMD_IF_LGT:       /* ..., value ==> ...                         */
1815
1816                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1817                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1818 #if 0
1819                         if (iptr->sx.val.l == 0) {
1820                                 /* if high word is greater than zero, the whole long is too */
1821                                 M_CMP_IMM(s1, 0);
1822                                 M_BGT(0);
1823                                 codegen_add_branch_ref(cd, iptr->dst.block);
1824
1825                                 /* ... or high was zero and low is non zero (tricky!) */
1826                                 M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1827                                 M_MOVLT_IMM(1, REG_ITMP3);
1828                                 M_ORR_S(REG_ITMP3, s2, REG_ITMP3);
1829                                 M_BNE(0);
1830                                 codegen_add_branch_ref(cd, iptr->dst.block);
1831                         }
1832                         else {
1833 #endif
1834                                 /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1835                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1836                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1837                                 M_CMP(s1, REG_ITMP3);*/
1838                                 M_EOR(REG_ITMP1, REG_ITMP1, REG_ITMP1);
1839                                 M_MOVGT_IMM(2, REG_ITMP1);
1840                                 M_MOVEQ_IMM(1, REG_ITMP1);
1841
1842                                 /* low compare: x=x+1(ifHI) */
1843                                 M_COMPARE(s2, (iptr->sx.val.l & 0xffffffff));
1844                                 /*ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1845                                 M_CMP(s2, REG_ITMP3);*/
1846                                 M_ADDHI_IMM(REG_ITMP1, REG_ITMP1, 1);
1847
1848                                 /* branch if (x GT 1) */
1849                                 M_CMP_IMM(REG_ITMP1, 1);
1850                                 emit_bgt(cd, iptr->dst.block);
1851 #if 0
1852                         }
1853 #endif
1854                         break;
1855
1856                 case ICMD_IF_LNE:       /* ..., value ==> ...                         */
1857
1858                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1859                         s2 = emit_load_s1_low(jd, iptr, REG_ITMP2);
1860                         if (iptr->sx.val.l == 0) {
1861                                 M_ORR_S(s1, s2, REG_ITMP3);
1862                         }
1863                         else {
1864                                 M_COMPARE(s1, (iptr->sx.val.l >> 32));
1865                                 /*ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1866                                 M_CMP(s1, REG_ITMP3);*/
1867                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1868                                 M_CMPEQ(s2, REG_ITMP3);
1869                         }
1870                         emit_bne(cd, iptr->dst.block);
1871                         break;
1872
1873                 case ICMD_IF_ICMPEQ:    /* ..., value, value ==> ...                  */
1874                 case ICMD_IF_ICMPNE:
1875                 case ICMD_IF_ICMPLT:
1876                 case ICMD_IF_ICMPLE:
1877                 case ICMD_IF_ICMPGT:
1878                 case ICMD_IF_ICMPGE:
1879
1880                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1881                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1882                         M_CMP(s1, s2);
1883                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IF_ICMPEQ, BRANCH_OPT_NONE);
1884                         break;
1885
1886                 case ICMD_IF_ACMPEQ:    /* ..., value, value ==> ...                  */
1887                 case ICMD_IF_ACMPNE:
1888
1889                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1890                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1891                         M_CMP(s1, s2);
1892                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IF_ACMPEQ, BRANCH_OPT_NONE);
1893                         break;
1894
1895                 case ICMD_IF_LCMPEQ:    /* ..., value, value ==> ...                  */
1896                                         /* op1 = target JavaVM pc                     */
1897
1898                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1899                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1900                         M_CMP(s1, s2);
1901
1902                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1903                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1904                         M_CMPEQ(s1, s2);
1905
1906                         emit_beq(cd, iptr->dst.block);
1907                         break;
1908
1909                 case ICMD_IF_LCMPNE:    /* ..., value, value ==> ...                  */
1910                                         /* op1 = target JavaVM pc                     */
1911
1912                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1913                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1914                         M_CMP(s1, s2);
1915
1916                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1917                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1918                         M_CMPEQ(s1, s2);
1919
1920                         emit_bne(cd, iptr->dst.block);
1921                         break;
1922
1923                 case ICMD_IF_LCMPLT:    /* ..., value, value ==> ...                  */
1924                                         /* op1 = target JavaVM pc                     */
1925
1926                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1927                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1928                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1929                         M_CMP(s1, s2);
1930                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1931                         M_MOVGT_IMM(2, REG_ITMP3);
1932                         M_MOVEQ_IMM(1, REG_ITMP3);
1933
1934                         /* low compare: x=x-1(ifLO) */
1935                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1936                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1937                         M_CMP(s1, s2);
1938                         M_SUBLO_IMM(REG_ITMP3, REG_ITMP3, 1);
1939
1940                         /* branch if (x LT 1) */
1941                         M_CMP_IMM(REG_ITMP3, 1);
1942                         emit_blt(cd, iptr->dst.block);
1943                         break;
1944
1945                 case ICMD_IF_LCMPLE:    /* ..., value, value ==> ...                  */
1946                                         /* op1 = target JavaVM pc                     */
1947
1948                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1949                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1950                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1951                         M_CMP(s1, s2);
1952                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1953                         M_MOVGT_IMM(2, REG_ITMP3);
1954                         M_MOVEQ_IMM(1, REG_ITMP3);
1955
1956                         /* low compare: x=x-1(ifLO) */
1957                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1958                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1959                         M_CMP(s1, s2);
1960                         M_ADDHI_IMM(REG_ITMP3, REG_ITMP3, 1);
1961
1962                         /* branch if (x LE 1) */
1963                         M_CMP_IMM(REG_ITMP3, 1);
1964                         emit_ble(cd, iptr->dst.block);
1965                         break;
1966
1967                 case ICMD_IF_LCMPGT:    /* ..., value, value ==> ...                  */
1968                                         /* op1 = target JavaVM pc                     */
1969
1970                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1971                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1972                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1973                         M_CMP(s1, s2);
1974                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1975                         M_MOVGT_IMM(2, REG_ITMP3);
1976                         M_MOVEQ_IMM(1, REG_ITMP3);
1977
1978                         /* low compare: x=x-1(ifLO) */
1979                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1980                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1981                         M_CMP(s1, s2);
1982                         M_ADDHI_IMM(REG_ITMP3, REG_ITMP3, 1);
1983
1984                         /* branch if (x GT 1) */
1985                         M_CMP_IMM(REG_ITMP3, 1);
1986                         emit_bgt(cd, iptr->dst.block);
1987                         break;
1988
1989                 case ICMD_IF_LCMPGE:    /* ..., value, value ==> ...                  */
1990                                         /* op1 = target JavaVM pc                     */
1991
1992                         /* high compare: x=0(ifLT) ; x=1(ifEQ) ; x=2(ifGT) */
1993                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1994                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1995                         M_CMP(s1, s2);
1996                         M_EOR(REG_ITMP3, REG_ITMP3, REG_ITMP3);
1997                         M_MOVGT_IMM(2, REG_ITMP3);
1998                         M_MOVEQ_IMM(1, REG_ITMP3);
1999
2000                         /* low compare: x=x-1(ifLO) */
2001                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2002                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
2003                         M_CMP(s1, s2);
2004                         M_SUBLO_IMM(REG_ITMP3, REG_ITMP3, 1);
2005
2006                         /* branch if (x GE 1) */
2007                         M_CMP_IMM(REG_ITMP3, 1);
2008                         emit_bge(cd, iptr->dst.block);
2009                         break;
2010
2011                 case ICMD_TABLESWITCH:  /* ..., index ==> ...                         */
2012                         {
2013                         s4 i, l;
2014                         branch_target_t *table;
2015
2016                         table = iptr->dst.table;
2017
2018                         l = iptr->sx.s23.s2.tablelow;
2019                         i = iptr->sx.s23.s3.tablehigh;
2020
2021                         /* calculate new index (index - low) */
2022                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2023                         if (l  == 0) {
2024                                 M_INTMOVE(s1, REG_ITMP1);
2025                         } else if (IS_IMM(l)) {
2026                                 M_SUB_IMM(REG_ITMP1, s1, l);
2027                         } else {
2028                                 ICONST(REG_ITMP2, l);
2029                                 M_SUB(REG_ITMP1, s1, REG_ITMP2);
2030                         }
2031
2032                         /* range check (index <= high-low) */
2033                         i = i - l + 1;
2034                         M_COMPARE(REG_ITMP1, i-1);
2035                         emit_bugt(cd, table[0].block);
2036
2037                         /* build jump table top down and use address of lowest entry */
2038
2039                         table += i;
2040
2041                         while (--i >= 0) {
2042                                 dseg_add_target(cd, table->block);
2043                                 --table;
2044                         }
2045                         }
2046
2047                         /* length of dataseg after last dseg_add_target is used by load */
2048                         /* TODO: this loads from data-segment */
2049                         M_ADD(REG_ITMP2, REG_PV, REG_LSL(REG_ITMP1, 2));
2050                         M_LDR(REG_PC, REG_ITMP2, -(cd->dseglen));
2051                         break;
2052
2053                 case ICMD_LOOKUPSWITCH: /* ..., key ==> ...                           */
2054                         {
2055                         s4 i;
2056                         lookup_target_t *lookup;
2057
2058                         lookup = iptr->dst.lookup;
2059
2060                         i = iptr->sx.s23.s2.lookupcount;
2061
2062                         /* compare keys */
2063                         MCODECHECK((i<<2)+8);
2064                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2065
2066                         while (--i >= 0) {
2067                                 M_COMPARE(s1, lookup->value);
2068                                 emit_beq(cd, lookup->target.block);
2069                                 lookup++;
2070                         }
2071
2072                         /* default branch */
2073                         emit_br(cd, iptr->sx.s23.s3.lookupdefault.block);
2074                         }
2075                         break;
2076
2077                 case ICMD_FRETURN:      /* ..., retvalue ==> ...                      */
2078
2079 #if !defined(ENABLE_SOFTFLOAT)
2080                         REPLACEMENT_POINT_RETURN(cd, iptr);
2081                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
2082                         M_CAST_FLT_TO_INT_TYPED(VAROP(iptr->s1)->type, s1, REG_RESULT);
2083                         goto ICMD_RETURN_do;
2084 #endif
2085
2086                 case ICMD_IRETURN:      /* ..., retvalue ==> ...                      */
2087
2088                         REPLACEMENT_POINT_RETURN(cd, iptr);
2089                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2090                         M_INTMOVE(s1, REG_RESULT);
2091                         goto ICMD_RETURN_do;
2092
2093                 case ICMD_DRETURN:      /* ..., retvalue ==> ...                      */
2094
2095 #if !defined(ENABLE_SOFTFLOAT)
2096                         REPLACEMENT_POINT_RETURN(cd, iptr);
2097                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
2098                         M_CAST_FLT_TO_INT_TYPED(VAROP(iptr->s1)->type, s1, REG_RESULT_PACKED);
2099                         goto ICMD_RETURN_do;
2100 #endif
2101
2102                 case ICMD_LRETURN:      /* ..., retvalue ==> ...                      */
2103
2104                         REPLACEMENT_POINT_RETURN(cd, iptr);
2105                         s1 = emit_load_s1(jd, iptr, REG_RESULT_PACKED);
2106                         M_LNGMOVE(s1, REG_RESULT_PACKED);
2107                         goto ICMD_RETURN_do;
2108
2109                 case ICMD_ARETURN:      /* ..., retvalue ==> ...                      */
2110
2111                         REPLACEMENT_POINT_RETURN(cd, iptr);
2112                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2113                         M_INTMOVE(s1, REG_RESULT);
2114                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2115                                 patcher_add_patch_ref(jd, PATCHER_resolve_class,
2116                                                                         iptr->sx.s23.s2.uc, 0);
2117
2118                                 if (opt_showdisassemble)
2119                                         M_NOP;
2120                         }
2121                         goto ICMD_RETURN_do;
2122
2123                 case ICMD_RETURN:       /* ...  ==> ...                               */
2124
2125                         REPLACEMENT_POINT_RETURN(cd, iptr);
2126                         ICMD_RETURN_do:
2127
2128 #if !defined(NDEBUG)
2129                         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
2130                                 emit_verbosecall_exit(jd);
2131 #endif
2132
2133 #if defined(ENABLE_THREADS)
2134                         /* call monitorexit function */
2135
2136                         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
2137                                 /* stack offset for monitor argument */
2138
2139                                 s1 = rd->memuse * 8;
2140
2141                                 /* we need to save the proper return value */
2142
2143                                 switch (iptr->opc) {
2144                                 case ICMD_IRETURN:
2145                                 case ICMD_ARETURN:
2146                                 case ICMD_LRETURN:
2147                                 case ICMD_FRETURN: /* XXX TWISTI: is that correct? */
2148                                 case ICMD_DRETURN:
2149                                         M_STMFD(BITMASK_RESULT, REG_SP);
2150                                         s1 += 2 * 4;
2151                                         break;
2152                                 }
2153
2154                                 M_LDR(REG_A0, REG_SP, s1);
2155                                 disp = dseg_add_functionptr(cd, LOCK_monitor_exit);
2156                                 M_DSEG_BRANCH(disp);
2157
2158                                 /* we no longer need PV here, no more loading */
2159                                 /*s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2160                                 M_RECOMPUTE_PV(s1);*/
2161
2162                                 switch (iptr->opc) {
2163                                 case ICMD_IRETURN:
2164                                 case ICMD_ARETURN:
2165                                 case ICMD_LRETURN:
2166                                 case ICMD_FRETURN: /* XXX TWISTI: is that correct? */
2167                                 case ICMD_DRETURN:
2168                                         M_LDMFD(BITMASK_RESULT, REG_SP);
2169                                         break;
2170                                 }
2171                         }
2172 #endif
2173
2174                         /* deallocate stackframe for spilled variables */
2175
2176                         if ((cd->stackframesize / 4 - savedregs_num) > 0)
2177                                 M_ADD_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - savedregs_num);
2178
2179                         /* restore callee saved registers + do return */
2180
2181                         if (savedregs_bitmask) {
2182                                 if (!jd->isleafmethod) {
2183                                         savedregs_bitmask &= ~(1<<REG_LR);
2184                                         savedregs_bitmask |= (1<<REG_PC);
2185                                 }
2186                                 M_LDMFD(savedregs_bitmask, REG_SP);
2187                         }
2188
2189                         /* if LR was not on stack, we need to return manually */
2190
2191                         if (jd->isleafmethod)
2192                                 M_MOV(REG_PC, REG_LR);
2193                         break;
2194
2195                 case ICMD_BUILTIN:      /* ..., arg1, arg2, arg3 ==> ...              */
2196
2197                         bte = iptr->sx.s23.s3.bte;
2198                         md  = bte->md;
2199                         goto ICMD_INVOKE_do;
2200
2201                 case ICMD_INVOKESTATIC: /* ..., [arg1, [arg2 ...]] ==> ...            */
2202                 case ICMD_INVOKESPECIAL:/* ..., objectref, [arg1, [arg2 ...]] ==> ... */
2203                 case ICMD_INVOKEVIRTUAL:/* op1 = arg count, val.a = method pointer    */
2204                 case ICMD_INVOKEINTERFACE:
2205
2206                         REPLACEMENT_POINT_INVOKE(cd, iptr);
2207
2208                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2209                                 lm = NULL;
2210                                 um = iptr->sx.s23.s3.um;
2211                                 md = um->methodref->parseddesc.md;
2212                         }
2213                         else {
2214                                 lm = iptr->sx.s23.s3.fmiref->p.method;
2215                                 um = NULL;
2216                                 md = lm->parseddesc;
2217                         }
2218
2219                 ICMD_INVOKE_do:
2220                         /* copy arguments to registers or stack location */
2221
2222                         s3 = md->paramcount;
2223
2224                         MCODECHECK((s3 << 1) + 64);
2225
2226                         for (s3 = s3 - 1; s3 >= 0; s3--) {
2227                                 var = VAR(iptr->sx.s23.s2.args[s3]);
2228                                 d   = md->params[s3].regoff;
2229
2230                                 if (var->flags & PREALLOC) /* argument was precolored? */
2231                                         continue;
2232
2233                                 /* TODO: document me */
2234 #if !defined(ENABLE_SOFTFLOAT)
2235                                 if (IS_INT_LNG_TYPE(var->type)) {
2236 #endif /* !defined(ENABLE_SOFTFLOAT) */
2237                                         if (!md->params[s3].inmemory) {
2238                                                 s1 = emit_load(jd, iptr, var, d);
2239
2240                                                 if (IS_2_WORD_TYPE(var->type))
2241                                                         M_LNGMOVE(s1, d);
2242                                                 else
2243                                                         M_INTMOVE(s1, d);
2244                                         }
2245                                         else {
2246                                                 if (IS_2_WORD_TYPE(var->type)) {
2247                                                         s1 = emit_load(jd, iptr, var, REG_ITMP12_PACKED);
2248                                                         M_LST(s1, REG_SP, d);
2249                                                 }
2250                                                 else {
2251                                                         s1 = emit_load(jd, iptr, var, REG_ITMP1);
2252                                                         M_IST(s1, REG_SP, d);
2253                                                 }
2254                                         }
2255 #if !defined(ENABLE_SOFTFLOAT)
2256                                 }
2257                                 else {
2258                                         if (!md->params[s3].inmemory) {
2259                                                 s1 = emit_load(jd, iptr, var, REG_FTMP1);
2260                                                 M_CAST_FLT_TO_INT_TYPED(var->type, s1, d);
2261                                         }
2262                                         else {
2263                                                 s1 = emit_load(jd, iptr, var, REG_FTMP1);
2264                                                 if (IS_2_WORD_TYPE(var->type))
2265                                                         M_DST(s1, REG_SP, d);
2266                                                 else
2267                                                         M_FST(s1, REG_SP, d);
2268                                         }
2269                                 }
2270 #endif /* !defined(ENABLE_SOFTFLOAT) */
2271                         }
2272
2273                         switch (iptr->opc) {
2274                         case ICMD_BUILTIN:
2275                                 disp = dseg_add_functionptr(cd, bte->fp);
2276
2277                                 M_DSEG_LOAD(REG_PV, disp); /* pointer to built-in-function */
2278
2279                                 /* generate the actual call */
2280
2281                                 M_MOV(REG_LR, REG_PC);
2282                                 M_MOV(REG_PC, REG_PV);
2283                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2284                                 M_RECOMPUTE_PV(s1);
2285
2286                                 emit_exception_check(cd, iptr);
2287                                 break;
2288
2289                         case ICMD_INVOKESPECIAL:
2290                                 emit_nullpointer_check(cd, iptr, REG_A0);
2291                                 /* fall through */
2292
2293                         case ICMD_INVOKESTATIC:
2294                                 if (lm == NULL) {
2295                                         disp = dseg_add_unique_address(cd, NULL);
2296
2297                                         patcher_add_patch_ref(jd, PATCHER_invokestatic_special,
2298                                                                                 um, disp);
2299
2300                                         if (opt_showdisassemble)
2301                                                 M_NOP;
2302                                 }
2303                                 else
2304                                         disp = dseg_add_address(cd, lm->stubroutine);
2305
2306                                 M_DSEG_LOAD(REG_PV, disp);            /* Pointer to method */
2307
2308                                 /* generate the actual call */
2309
2310                                 M_MOV(REG_LR, REG_PC);
2311                                 M_MOV(REG_PC, REG_PV);
2312                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2313                                 M_RECOMPUTE_PV(s1);
2314                                 break;
2315
2316                         case ICMD_INVOKEVIRTUAL:
2317                                 if (lm == NULL) {
2318                                         patcher_add_patch_ref(jd, PATCHER_invokevirtual, um, 0);
2319
2320                                         if (opt_showdisassemble)
2321                                                 M_NOP;
2322
2323                                         s1 = 0;
2324                                 }
2325                                 else
2326                                         s1 = OFFSET(vftbl_t, table[0]) +
2327                                                 sizeof(methodptr) * lm->vftblindex;
2328
2329                                 /* implicit null-pointer check */
2330                                 M_LDR_INTERN(REG_METHODPTR, REG_A0,
2331                                                          OFFSET(java_objectheader, vftbl));
2332                                 M_LDR_INTERN(REG_PV, REG_METHODPTR, s1);
2333
2334                                 /* generate the actual call */
2335
2336                                 M_MOV(REG_LR, REG_PC);
2337                                 M_MOV(REG_PC, REG_PV);
2338                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2339                                 M_RECOMPUTE_PV(s1);
2340                                 break;
2341
2342                         case ICMD_INVOKEINTERFACE:
2343                                 if (lm == NULL) {
2344                                         patcher_add_patch_ref(jd, PATCHER_invokeinterface, um, 0);
2345
2346                                         if (opt_showdisassemble)
2347                                                 M_NOP;
2348
2349                                         s1 = 0;
2350                                         s2 = 0;
2351                                 }
2352                                 else {
2353                                         s1 = OFFSET(vftbl_t, interfacetable[0]) -
2354                                                 sizeof(methodptr*) * lm->class->index;
2355                                         s2 = sizeof(methodptr) * (lm - lm->class->methods);
2356                                 }
2357
2358                                 /* implicit null-pointer check */
2359                                 M_LDR_INTERN(REG_METHODPTR, REG_A0,
2360                                                          OFFSET(java_objectheader, vftbl));
2361                                 M_LDR_INTERN(REG_METHODPTR, REG_METHODPTR, s1);
2362                                 M_LDR_INTERN(REG_PV, REG_METHODPTR, s2);
2363
2364                                 /* generate the actual call */
2365
2366                                 M_MOV(REG_LR, REG_PC);
2367                                 M_MOV(REG_PC, REG_PV);
2368                                 s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2369                                 M_RECOMPUTE_PV(s1);
2370                                 break;
2371                         }
2372
2373                         /* store size of call code in replacement point */
2374                         REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2375
2376                         /* store return value */
2377
2378                         d = md->returntype.type;
2379
2380 #if !defined(__SOFTFP__)
2381                         /* TODO: this is only a hack, since we use R0/R1 for float
2382                            return!  this depends on gcc; it is independent from
2383                            our ENABLE_SOFTFLOAT define */
2384                         if (iptr->opc == ICMD_BUILTIN && d != TYPE_VOID && IS_FLT_DBL_TYPE(d)) {
2385 #if 0 && !defined(NDEBUG)
2386                                 dolog("BUILTIN that returns float or double (%s.%s)", m->class->name->text, m->name->text);
2387 #endif
2388                                 /* we cannot use this macro, since it is not defined
2389                                    in ENABLE_SOFTFLOAT M_CAST_FLT_TO_INT_TYPED(d,
2390                                    REG_FRESULT, REG_RESULT_TYPED(d)); */
2391                                 if (IS_2_WORD_TYPE(d)) {
2392                                         DCD(0xed2d8102); /* stfd    f0, [sp, #-8]! */
2393                                         M_LDRD_UPDATE(REG_RESULT_PACKED, REG_SP, 8);
2394                                 } else {
2395                                         DCD(0xed2d0101); /* stfs    f0, [sp, #-4]!*/
2396                                         M_LDR_UPDATE(REG_RESULT, REG_SP, 4);
2397                                 }
2398                         }
2399 #endif
2400
2401                         if (d != TYPE_VOID) {
2402 #if !defined(ENABLE_SOFTFLOAT)
2403                                 if (IS_INT_LNG_TYPE(d)) {
2404 #endif /* !defined(ENABLE_SOFTFLOAT) */
2405                                         if (IS_2_WORD_TYPE(d)) {
2406                                                 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
2407                                                 M_LNGMOVE(REG_RESULT_PACKED, s1);
2408                                         }
2409                                         else {
2410                                                 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2411                                                 M_INTMOVE(REG_RESULT, s1);
2412                                         }
2413
2414 #if !defined(ENABLE_SOFTFLOAT)
2415                                 } else {
2416                                         s1 = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
2417                                         M_CAST_INT_TO_FLT_TYPED(VAROP(iptr->dst)->type, REG_RESULT_TYPED(VAROP(iptr->dst)->type), s1);
2418                                 }
2419 #endif /* !defined(ENABLE_SOFTFLOAT) */
2420
2421                                 emit_store_dst(jd, iptr, s1);
2422                         }
2423                         break;
2424
2425                 case ICMD_CHECKCAST:  /* ..., objectref ==> ..., objectref            */
2426
2427                         if (!(iptr->flags.bits & INS_FLAG_ARRAY)) {
2428                                 /* object type cast-check */
2429
2430                         classinfo *super;
2431                         s4         superindex;
2432
2433                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2434                                 super      = NULL;
2435                                 superindex = 0;
2436                         }
2437                         else {
2438                                 super      = iptr->sx.s23.s3.c.cls;
2439                                 superindex = super->index;
2440                         }
2441
2442                                 if ((super == NULL) || !(super->flags & ACC_INTERFACE))
2443                                         CODEGEN_CRITICAL_SECTION_NEW;
2444
2445                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2446
2447                         /* if class is not resolved, check which code to call */
2448
2449                         if (super == NULL) {
2450                                 M_TST(s1, s1);
2451                                 emit_label_beq(cd, BRANCH_LABEL_1);
2452
2453                                 disp = dseg_add_unique_s4(cd, 0); /* super->flags */
2454                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_flags,
2455                                                     iptr->sx.s23.s3.c.ref, disp);
2456
2457                                 if (opt_showdisassemble)
2458                                         M_NOP;
2459
2460                                 M_DSEG_LOAD(REG_ITMP2, disp);
2461                                 disp = dseg_add_s4(cd, ACC_INTERFACE);
2462                                 M_DSEG_LOAD(REG_ITMP3, disp);
2463                                 M_TST(REG_ITMP2, REG_ITMP3);
2464                                 emit_label_beq(cd, BRANCH_LABEL_2);
2465                         }
2466
2467                         /* interface checkcast code */
2468
2469                         if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2470                                 if ((super == NULL) || !IS_IMM(superindex)) {
2471                                         disp = dseg_add_unique_s4(cd, superindex);
2472                                 }
2473                                 if (super == NULL) {
2474                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_index,
2475                                                             iptr->sx.s23.s3.c.ref, disp);
2476
2477                                         if (opt_showdisassemble)
2478                                                 M_NOP;
2479                                 }
2480                                 else {
2481                                         M_TST(s1, s1);
2482                                         emit_label_beq(cd, BRANCH_LABEL_3);
2483                                 }
2484
2485                                 M_LDR_INTERN(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2486                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, interfacetablelength));
2487
2488                                 /* we put unresolved or non-immediate superindices onto dseg */
2489                                 if ((super == NULL) || !IS_IMM(superindex)) {
2490                                         /* disp was computed before we added the patcher */
2491                                         M_DSEG_LOAD(REG_ITMP2, disp);
2492                                         M_CMP(REG_ITMP3, REG_ITMP2);
2493                                 } else {
2494                                         assert(IS_IMM(superindex));
2495                                         M_CMP_IMM(REG_ITMP3, superindex);
2496                                 }
2497
2498                                 emit_classcast_check(cd, iptr, BRANCH_LE, REG_ITMP3, s1);
2499
2500                                 /* if we loaded the superindex out of the dseg above, we do
2501                                    things differently here! */
2502                                 if ((super == NULL) || !IS_IMM(superindex)) {
2503
2504                                         M_LDR_INTERN(REG_ITMP3, s1, OFFSET(java_objectheader, vftbl));
2505
2506                                         /* this assumes something */
2507                                         assert(OFFSET(vftbl_t, interfacetable[0]) == 0);
2508
2509                                         /* this does: REG_ITMP3 - superindex * sizeof(methodptr*) */
2510                                         assert(sizeof(methodptr*) == 4);
2511                                         M_SUB(REG_ITMP2, REG_ITMP3, REG_LSL(REG_ITMP2, 2));
2512
2513                                         s2 = 0;
2514
2515                                 } else {
2516
2517                                         s2 = OFFSET(vftbl_t, interfacetable[0]) -
2518                                                                 superindex * sizeof(methodptr*);
2519
2520                                 }
2521
2522                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, s2);
2523                                 M_TST(REG_ITMP3, REG_ITMP3);
2524                                 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_ITMP3, s1);
2525
2526                                 if (super == NULL)
2527                                         emit_label_br(cd, BRANCH_LABEL_4);
2528                                 else
2529                                         emit_label(cd, BRANCH_LABEL_3);
2530                         }
2531
2532                         /* class checkcast code */
2533
2534                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2535                                 if (super == NULL) {
2536                                         emit_label(cd, BRANCH_LABEL_2);
2537
2538                                         disp = dseg_add_unique_address(cd, NULL);
2539
2540                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_vftbl,
2541                                                             iptr->sx.s23.s3.c.ref,
2542                                                                                 disp);
2543
2544                                         if (opt_showdisassemble)
2545                                                 M_NOP;
2546                                 }
2547                                 else {
2548                                         disp = dseg_add_address(cd, super->vftbl);
2549
2550                                         M_TST(s1, s1);
2551                                         emit_label_beq(cd, BRANCH_LABEL_5);
2552                                 }
2553
2554                                 M_LDR_INTERN(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2555                                 M_DSEG_LOAD(REG_ITMP3, disp);
2556
2557                                 CODEGEN_CRITICAL_SECTION_START;
2558
2559                                 M_LDR_INTERN(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, baseval));
2560                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, baseval));
2561                                 M_SUB(REG_ITMP2, REG_ITMP2, REG_ITMP3);
2562                                 M_DSEG_LOAD(REG_ITMP3, disp);
2563                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, diffval));
2564
2565                                 CODEGEN_CRITICAL_SECTION_END;
2566
2567                                 M_CMP(REG_ITMP2, REG_ITMP3);
2568                                 emit_classcast_check(cd, iptr, BRANCH_UGT, 0, s1);
2569
2570                                 if (super != NULL)
2571                                         emit_label(cd, BRANCH_LABEL_5);
2572                         }
2573
2574                         if (super == NULL) {
2575                                 emit_label(cd, BRANCH_LABEL_1);
2576                                 emit_label(cd, BRANCH_LABEL_4);
2577                         }
2578
2579                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
2580                         }
2581                         else {
2582                                 /* array type cast-check */
2583
2584                                 s1 = emit_load_s1(jd, iptr, REG_A0);
2585                                 M_INTMOVE(s1, REG_A0);
2586
2587                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2588                                         disp = dseg_add_unique_address(cd, NULL);
2589
2590                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
2591                                                                                 iptr->sx.s23.s3.c.ref,
2592                                                                                 disp);
2593
2594                                         if (opt_showdisassemble)
2595                                                 M_NOP;
2596                                 }
2597                                 else
2598                                         disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2599
2600                                 M_DSEG_LOAD(REG_A1, disp);
2601                                 disp = dseg_add_functionptr(cd, BUILTIN_arraycheckcast);
2602                                 M_DSEG_BRANCH(disp);
2603
2604                                 /* recompute pv */
2605                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2606                                 M_RECOMPUTE_PV(disp);
2607
2608                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2609                                 M_TST(REG_RESULT, REG_RESULT);
2610                                 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_RESULT, s1);
2611
2612                                 d = codegen_reg_of_dst(jd, iptr, s1);
2613                         }
2614
2615                         M_INTMOVE(s1, d);
2616                         emit_store_dst(jd, iptr, d);
2617                         break;
2618
2619                 case ICMD_INSTANCEOF: /* ..., objectref ==> ..., intresult            */
2620
2621                         {
2622                         classinfo *super;
2623                         s4         superindex;
2624
2625                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2626                                 super      = NULL;
2627                                 superindex = 0;
2628                         }
2629                         else {
2630                                 super      = iptr->sx.s23.s3.c.cls;
2631                                 superindex = super->index;
2632                         }
2633
2634                         if ((super == NULL) || !(super->flags & ACC_INTERFACE))
2635                                 CODEGEN_CRITICAL_SECTION_NEW;
2636
2637                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2638                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
2639
2640                         if (s1 == d) {
2641                                 M_MOV(REG_ITMP1, s1);
2642                                 s1 = REG_ITMP1;
2643                         }
2644
2645                         /* if class is not resolved, check which code to call */
2646
2647                         if (super == NULL) {
2648                                 M_EOR(d, d, d);
2649
2650                                 M_TST(s1, s1);
2651                                 emit_label_beq(cd, BRANCH_LABEL_1);
2652
2653                                 disp = dseg_add_unique_s4(cd, 0); /* super->flags */
2654                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_flags,
2655                                                     iptr->sx.s23.s3.c.ref, disp);
2656
2657                                 if (opt_showdisassemble)
2658                                         M_NOP;
2659
2660                                 M_DSEG_LOAD(REG_ITMP2, disp);
2661                                 disp = dseg_add_s4(cd, ACC_INTERFACE);
2662                                 M_DSEG_LOAD(REG_ITMP3, disp);
2663                                 M_TST(REG_ITMP2, REG_ITMP3);
2664                                 emit_label_beq(cd, BRANCH_LABEL_2);
2665                         }
2666
2667                         /* interface checkcast code */
2668
2669                         if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2670                                 if ((super == NULL) || !IS_IMM(superindex)) {
2671                                         disp = dseg_add_unique_s4(cd, superindex);
2672                                 }
2673                                 if (super == NULL) {
2674                                         /* If d == REG_ITMP2, then it's destroyed in check
2675                                            code above.  */
2676                                         if (d == REG_ITMP2)
2677                                                 M_EOR(d, d, d);
2678
2679                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_index,
2680                                                             iptr->sx.s23.s3.c.ref, disp);
2681
2682                                         if (opt_showdisassemble)
2683                                                 M_NOP;
2684                                 }
2685                                 else {
2686                                         M_EOR(d, d, d);
2687                                         M_TST(s1, s1);
2688                                         emit_label_beq(cd, BRANCH_LABEL_3);
2689                                 }
2690
2691                                 M_LDR_INTERN(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
2692                                 M_LDR_INTERN(REG_ITMP3,
2693                                                          REG_ITMP1, OFFSET(vftbl_t, interfacetablelength));
2694
2695                                 /* we put unresolved or non-immediate superindices onto dseg
2696                                    and do things slightly different */
2697                                 if ((super == NULL) || !IS_IMM(superindex)) {
2698                                         /* disp was computed before we added the patcher */
2699                                         M_DSEG_LOAD(REG_ITMP2, disp);
2700                                         M_CMP(REG_ITMP3, REG_ITMP2);
2701
2702                                         if (d == REG_ITMP2) {
2703                                                 M_EORLE(d, d, d);
2704                                                 M_BLE(4);
2705                                         } else {
2706                                                 M_BLE(3);
2707                                         }
2708
2709                                         /* this assumes something */
2710                                         assert(OFFSET(vftbl_t, interfacetable[0]) == 0);
2711
2712                                         /* this does: REG_ITMP3 - superindex * sizeof(methodptr*) */
2713                                         assert(sizeof(methodptr*) == 4);
2714                                         M_SUB(REG_ITMP1, REG_ITMP1, REG_LSL(REG_ITMP2, 2));
2715
2716                                         if (d == REG_ITMP2) {
2717                                                 M_EOR(d, d, d);
2718                                         }
2719
2720                                         s2 = 0;
2721
2722                                 } else {
2723                                         assert(IS_IMM(superindex));
2724                                         M_CMP_IMM(REG_ITMP3, superindex);
2725
2726                                         M_BLE(2);
2727
2728                                         s2 = OFFSET(vftbl_t, interfacetable[0]) -
2729                                                 superindex * sizeof(methodptr*);
2730
2731                                 }
2732
2733                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP1, s2);
2734                                 M_TST(REG_ITMP3, REG_ITMP3);
2735                                 M_MOVNE_IMM(1, d);
2736
2737                                 if (super == NULL)
2738                                         emit_label_br(cd, BRANCH_LABEL_4);
2739                                 else
2740                                         emit_label(cd, BRANCH_LABEL_3);
2741                         }
2742
2743                         /* class checkcast code */
2744
2745                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2746                                 if (super == NULL) {
2747                                         emit_label(cd, BRANCH_LABEL_2);
2748
2749                                         disp = dseg_add_unique_address(cd, NULL);
2750
2751                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_vftbl,
2752                                                             iptr->sx.s23.s3.c.ref, disp);
2753
2754                                         if (opt_showdisassemble)
2755                                                 M_NOP;
2756                                 }
2757                                 else {
2758                                         disp = dseg_add_address(cd, super->vftbl);
2759
2760                                         M_EOR(d, d, d);
2761                                         M_TST(s1, s1);
2762                                         emit_label_beq(cd, BRANCH_LABEL_5);
2763                                 }
2764
2765                                 M_LDR_INTERN(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
2766                                 M_DSEG_LOAD(REG_ITMP2, disp);
2767
2768                                 CODEGEN_CRITICAL_SECTION_START;
2769
2770                                 M_LDR_INTERN(REG_ITMP1, REG_ITMP1, OFFSET(vftbl_t, baseval));
2771                                 M_LDR_INTERN(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2772                                 M_LDR_INTERN(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2773
2774                                 CODEGEN_CRITICAL_SECTION_END;
2775
2776                                 M_SUB(REG_ITMP1, REG_ITMP1, REG_ITMP3);
2777                                 M_CMP(REG_ITMP1, REG_ITMP2);
2778                                 /* If d == REG_ITMP2, then it's destroyed */
2779                                 if (d == REG_ITMP2)
2780                                         M_EOR(d, d, d);
2781                                 M_MOVLS_IMM(1, d);
2782
2783                                 if (super != NULL)
2784                                         emit_label(cd, BRANCH_LABEL_5);
2785                         }
2786
2787                         if (super == NULL) {
2788                                 emit_label(cd, BRANCH_LABEL_1);
2789                                 emit_label(cd, BRANCH_LABEL_4);
2790                         }
2791
2792                         }
2793
2794                         emit_store_dst(jd, iptr, d);
2795                         break;
2796
2797                 case ICMD_MULTIANEWARRAY:/* ..., cnt1, [cnt2, ...] ==> ..., arrayref  */
2798
2799                         /* copy sizes to stack if necessary  */
2800
2801                         MCODECHECK((iptr->s1.argcount << 1) + 64);
2802
2803                         for (s1 = iptr->s1.argcount; --s1 >= 0; ) {
2804
2805                                 var = VAR(iptr->sx.s23.s2.args[s1]);
2806
2807                                 /* copy SAVEDVAR sizes to stack */
2808
2809                                 if (!(var->flags & PREALLOC)) {
2810                                         s2 = emit_load(jd, iptr, var, REG_ITMP1);
2811                                         M_STR(s2, REG_SP, s1 * 4);
2812                                 }
2813                         }
2814
2815                         /* a0 = dimension count */
2816
2817                         assert(IS_IMM(iptr->s1.argcount));
2818                         M_MOV_IMM(REG_A0, iptr->s1.argcount);
2819
2820                         /* is patcher function set? */
2821
2822                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2823                                 disp = dseg_add_unique_address(cd, NULL);
2824
2825                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
2826                                                                         iptr->sx.s23.s3.c.ref, disp);
2827
2828                                 if (opt_showdisassemble)
2829                                         M_NOP;
2830                         }
2831                         else
2832                                 disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2833
2834                         /* a1 = arraydescriptor */
2835
2836                         M_DSEG_LOAD(REG_A1, disp);
2837
2838                         /* a2 = pointer to dimensions = stack pointer */
2839
2840                         M_INTMOVE(REG_SP, REG_A2);
2841
2842                         /* call builtin_multianewarray here */
2843
2844                         disp = dseg_add_functionptr(cd, BUILTIN_multianewarray);
2845                         M_DSEG_BRANCH(disp);
2846
2847                         /* recompute pv */
2848
2849                         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
2850                         M_RECOMPUTE_PV(s1);
2851
2852                         /* check for exception before result assignment */
2853
2854                         emit_exception_check(cd, iptr);
2855
2856                         /* get arrayref */
2857
2858                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2859                         M_INTMOVE(REG_RESULT, d);
2860                         emit_store_dst(jd, iptr, d);
2861                         break;
2862
2863                 case ICMD_CHECKNULL:  /* ..., objectref  ==> ..., objectref           */
2864
2865                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2866                         emit_nullpointer_check(cd, iptr, s1);
2867                         break;
2868
2869                 default:
2870                         exceptions_throw_internalerror("Unknown ICMD %d during code generation",
2871                                                                                    iptr->opc);
2872                         return false;
2873                 } /* the big switch */
2874
2875                 } /* for all instructions */
2876
2877         } /* for all basic blocks */
2878
2879         dseg_createlinenumbertable(cd);
2880
2881
2882         /* generate stubs */
2883
2884         emit_patcher_traps(jd);
2885         REPLACEMENT_EMIT_STUBS(jd);
2886
2887         /* everything's ok */
2888
2889         return true;
2890 }
2891
2892
2893 /* codegen_emit_stub_compiler **************************************************
2894
2895    Emits a stub routine which calls the compiler.
2896
2897 *******************************************************************************/
2898
2899 void codegen_emit_stub_compiler(jitdata *jd)
2900 {
2901         methodinfo  *m;
2902         codegendata *cd;
2903
2904         /* get required compiler data */
2905
2906         m  = jd->m;
2907         cd = jd->cd;
2908
2909         /* code for the stub */
2910
2911         M_LDR_INTERN(REG_ITMP1, REG_PC, -(2 * 4 + 2 * SIZEOF_VOID_P));
2912         M_LDR_INTERN(REG_PC, REG_PC, -(3 * 4 + 3 * SIZEOF_VOID_P));
2913 }
2914
2915
2916 /* codegen_emit_stub_native ****************************************************
2917
2918    Emits a stub routine which calls a native method.
2919
2920 *******************************************************************************/
2921
2922 void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f)
2923 {
2924         methodinfo  *m;
2925         codeinfo    *code;
2926         codegendata *cd;
2927         s4           nativeparams;
2928         methoddesc  *md;
2929         s4           i, j;
2930         s4           t;
2931         s4           disp, funcdisp, s1, s2;
2932
2933         /* get required compiler data */
2934
2935         m    = jd->m;
2936         code = jd->code;
2937         cd   = jd->cd;
2938
2939         /* initialize variables */
2940
2941         md = m->parseddesc;
2942         nativeparams = (m->flags & ACC_STATIC) ? 2 : 1;
2943
2944         /* calculate stackframe size */
2945
2946         cd->stackframesize =
2947                 4 +                                                /* return address  */
2948                 sizeof(stackframeinfo) +                           /* stackframeinfo  */
2949                 sizeof(localref_table) +                           /* localref_table  */
2950                 nmd->memuse * 4;                                   /* stack arguments */
2951
2952         /* align stack to 8-byte */
2953
2954         cd->stackframesize = (cd->stackframesize + 4) & ~4;
2955
2956         /* create method header */
2957
2958         (void) dseg_add_unique_address(cd, code);              /* CodeinfoPointer */
2959         (void) dseg_add_unique_s4(cd, cd->stackframesize);     /* FrameSize       */
2960         (void) dseg_add_unique_s4(cd, 0);                      /* IsSync          */
2961         (void) dseg_add_unique_s4(cd, 0);                      /* IsLeaf          */
2962         (void) dseg_add_unique_s4(cd, 0);                      /* IntSave         */
2963         (void) dseg_add_unique_s4(cd, 0);                      /* FltSave         */
2964         (void) dseg_addlinenumbertablesize(cd);
2965         (void) dseg_add_unique_s4(cd, 0);                      /* ExTableSize     */
2966
2967         /* generate stub code */
2968
2969         M_STMFD(1<<REG_LR, REG_SP);
2970         M_SUB_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - 1);
2971
2972 #if !defined(NDEBUG)
2973         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
2974                 emit_verbosecall_enter(jd);
2975 #endif
2976
2977         /* get function address (this must happen before the stackframeinfo) */
2978
2979         funcdisp = dseg_add_functionptr(cd, f);
2980
2981 #if !defined(WITH_STATIC_CLASSPATH)
2982         if (f == NULL) {
2983                 patcher_add_patch_ref(jd, PATCHER_resolve_native_function, m, funcdisp);
2984
2985                 if (opt_showdisassemble)
2986                         M_NOP;
2987         }
2988 #endif
2989
2990         /* Save integer and float argument registers (these are 4
2991            registers, stack is 8-byte aligned). */
2992
2993         M_STMFD(BITMASK_ARGS, REG_SP);
2994         /* TODO: floating point */
2995
2996         /* create native stackframe info */
2997
2998         assert(IS_IMM(4*4 + cd->stackframesize));
2999         M_ADD_IMM(REG_A0, REG_SP, 4*4 + cd->stackframesize - SIZEOF_VOID_P);
3000         M_MOV(REG_A1, REG_PV);
3001         M_ADD_IMM(REG_A2, REG_SP, 4*4 + cd->stackframesize);
3002         M_LDR_INTERN(REG_A3, REG_SP, 4*4 + cd->stackframesize - SIZEOF_VOID_P);
3003         disp = dseg_add_functionptr(cd, codegen_start_native_call);
3004         M_DSEG_BRANCH(disp);
3005
3006         /* recompute pv */
3007
3008         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3009         M_RECOMPUTE_PV(s1);
3010
3011         /* Restore integer and float argument registers (these are 4
3012            registers, stack is 8-byte aligned). */
3013
3014         M_LDMFD(BITMASK_ARGS, REG_SP);
3015         /* TODO: floating point */
3016
3017         /* copy or spill arguments to new locations */
3018         /* ATTENTION: the ARM has only integer argument registers! */
3019
3020         for (i = md->paramcount - 1, j = i + nativeparams; i >= 0; i--, j--) {
3021                 t = md->paramtypes[i].type;
3022
3023                 if (!md->params[i].inmemory) {
3024                         s1 = md->params[i].regoff;
3025                         s2 = nmd->params[j].regoff;
3026
3027                         if (!nmd->params[j].inmemory) {
3028 #if !defined(__ARM_EABI__)
3029                                 SPLIT_OPEN(t, s2, REG_ITMP1);
3030 #endif
3031
3032                                 if (IS_2_WORD_TYPE(t))
3033                                         M_LNGMOVE(s1, s2);
3034                                 else
3035                                         M_INTMOVE(s1, s2);
3036
3037 #if !defined(__ARM_EABI__)
3038                                 SPLIT_STORE_AND_CLOSE(t, s2, 0);
3039 #endif
3040                         }
3041                         else {
3042                                 if (IS_2_WORD_TYPE(t))
3043                                         M_LST(s1, REG_SP, s2);
3044                                 else
3045                                         M_IST(s1, REG_SP, s2);
3046                         }
3047                 }
3048                 else {
3049                         s1 = md->params[i].regoff + cd->stackframesize;
3050                         s2 = nmd->params[j].regoff;
3051
3052                         if (IS_2_WORD_TYPE(t)) {
3053                                 M_LLD(REG_ITMP12_PACKED, REG_SP, s1);
3054                                 M_LST(REG_ITMP12_PACKED, REG_SP, s2);
3055                         }
3056                         else {
3057                                 M_ILD(REG_ITMP1, REG_SP, s1);
3058                                 M_IST(REG_ITMP1, REG_SP, s2);
3059                         }
3060                 }
3061         }
3062
3063         /* put class into second argument register */
3064
3065         if (m->flags & ACC_STATIC) {
3066                 disp = dseg_add_address(cd, m->class);
3067                 M_DSEG_LOAD(REG_A1, disp);
3068         }
3069
3070         /* put env into first argument register */
3071
3072         disp = dseg_add_address(cd, _Jv_env);
3073         M_DSEG_LOAD(REG_A0, disp);
3074
3075         /* do the native function call */
3076
3077         M_DSEG_BRANCH(funcdisp);
3078
3079         /* recompute pv */
3080         /* TODO: this is only needed because of the tracer ... do we
3081            really need it? */
3082
3083         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3084         M_RECOMPUTE_PV(s1);
3085
3086 #if !defined(__SOFTFP__)
3087         /* TODO: this is only a hack, since we use R0/R1 for float return! */
3088         /* this depends on gcc; it is independent from our ENABLE_SOFTFLOAT define */
3089         if (md->returntype.type != TYPE_VOID && IS_FLT_DBL_TYPE(md->returntype.type)) {
3090 #if 0 && !defined(NDEBUG)
3091                 dolog("NATIVESTUB that returns float or double (%s.%s)", m->class->name->text, m->name->text);
3092 #endif
3093                 /* we cannot use this macro, since it is not defined in ENABLE_SOFTFLOAT */
3094                 /* M_CAST_FLT_TO_INT_TYPED(md->returntype.type, REG_FRESULT, REG_RESULT_TYPED(md->returntype.type)); */
3095                 if (IS_2_WORD_TYPE(md->returntype.type)) {
3096                         DCD(0xed2d8102); /* stfd    f0, [sp, #-8]! */
3097                         M_LDRD_UPDATE(REG_RESULT_PACKED, REG_SP, 8);
3098                 } else {
3099                         DCD(0xed2d0101); /* stfs    f0, [sp, #-4]!*/
3100                         M_LDR_UPDATE(REG_RESULT, REG_SP, 4);
3101                 }
3102         }
3103 #endif
3104
3105 #if !defined(NDEBUG)
3106         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
3107                 emit_verbosecall_exit(jd);
3108 #endif
3109
3110         /* remove native stackframe info */
3111         /* TODO: improve this store/load */
3112
3113         M_STMFD(BITMASK_RESULT, REG_SP);
3114
3115         M_ADD_IMM(REG_A0, REG_SP, 2*4 + cd->stackframesize - SIZEOF_VOID_P);
3116         disp = dseg_add_functionptr(cd, codegen_finish_native_call);
3117         M_DSEG_BRANCH(disp);
3118         s1 = (s4) (cd->mcodeptr - cd->mcodebase);
3119         M_RECOMPUTE_PV(s1);
3120
3121         M_MOV(REG_ITMP1_XPTR, REG_RESULT);
3122         M_LDMFD(BITMASK_RESULT, REG_SP);
3123
3124         /* finish stub code, but do not yet return to caller */
3125
3126         M_ADD_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - 1);
3127         M_LDMFD(1<<REG_LR, REG_SP);
3128
3129         /* check for exception */
3130
3131         M_TST(REG_ITMP1_XPTR, REG_ITMP1_XPTR);
3132         M_MOVEQ(REG_LR, REG_PC);            /* if no exception, return to caller  */
3133
3134         /* handle exception here */
3135
3136         M_SUB_IMM(REG_ITMP2_XPC, REG_LR, 4);/* move fault address into xpc        */
3137
3138         disp = dseg_add_functionptr(cd, asm_handle_nat_exception);
3139         M_DSEG_LOAD(REG_ITMP3, disp);       /* load asm exception handler address */
3140         M_MOV(REG_PC, REG_ITMP3);           /* jump to asm exception handler      */
3141
3142         /* generate patcher stubs */
3143
3144         emit_patcher_traps(jd);
3145 }
3146
3147
3148 /* asm_debug *******************************************************************
3149
3150    Lazy debugger!
3151
3152 *******************************************************************************/
3153
3154 void asm_debug(int a1, int a2, int a3, int a4)
3155 {
3156         printf("===> i am going to exit after this debugging message!\n");
3157         printf("got asm_debug(%p, %p, %p, %p)\n",(void*)a1,(void*)a2,(void*)a3,(void*)a4);
3158         vm_abort("leave you now");
3159 }
3160
3161
3162 /*
3163  * These are local overrides for various environment variables in Emacs.
3164  * Please do not remove this and leave it at the end of the file, where
3165  * Emacs will automagically detect them.
3166  * ---------------------------------------------------------------------
3167  * Local variables:
3168  * mode: c
3169  * indent-tabs-mode: t
3170  * c-basic-offset: 4
3171  * tab-width: 4
3172  * End:
3173  * vim:noexpandtab:sw=4:ts=4:
3174  */