src/vm/jit/powerpc/codegen.c

   1 /* src/vm/jit/powerpc/codegen.c - machine code generator for 32-bit PowerPC
   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 7766 2007-04-19 13:24:48Z michi $
  26
  27 */
  28
  29
  30 #include "config.h"
  31
  32 #include <assert.h>
  33 #include <stdio.h>
  34 #include <signal.h>
  35
  36 #include "vm/types.h"
  37
  38 #include "md-abi.h"
  39
  40 #include "vm/jit/powerpc/arch.h"
  41 #include "vm/jit/powerpc/codegen.h"
  42
  43 #include "mm/memory.h"
  44 #include "native/native.h"
  45
  46 #if defined(ENABLE_THREADS)
  47 # include "threads/native/lock.h"
  48 #endif
  49
  50 #include "vm/builtin.h"
  51 #include "vm/exceptions.h"
  52 #include "vm/global.h"
  53 #include "vm/stringlocal.h"
  54 #include "vm/vm.h"
  55
  56 #include "vm/jit/abi.h"
  57 #include "vm/jit/abi-asm.h"
  58 #include "vm/jit/asmpart.h"
  59 #include "vm/jit/codegen-common.h"
  60 #include "vm/jit/dseg.h"
  61 #include "vm/jit/emit-common.h"
  62 #include "vm/jit/jit.h"
  63 #include "vm/jit/md.h"
  64 #include "vm/jit/methodheader.h"
  65 #include "vm/jit/parse.h"
  66 #include "vm/jit/patcher.h"
  67 #include "vm/jit/reg.h"
  68 #include "vm/jit/replace.h"
  69 #include "vm/jit/stacktrace.h"
  70
  71 #if defined(ENABLE_LSRA)
  72 # include "vm/jit/allocator/lsra.h"
  73 #endif
  74
  75 #include "vmcore/loader.h"
  76 #include "vmcore/options.h"
  77
  78
  79 /* codegen *********************************************************************
  80
  81    Generates machine code.
  82
  83 *******************************************************************************/
  84
  85 bool codegen_emit(jitdata *jd)
  86 {
  87         methodinfo         *m;
  88         codeinfo           *code;
  89         codegendata        *cd;
  90         registerdata       *rd;
  91         s4                  len, s1, s2, s3, d, disp;
  92         ptrint              a;
  93         varinfo            *var;
  94         basicblock         *bptr;
  95         instruction        *iptr;
  96         exception_entry    *ex;
  97         u2                  currentline;
  98         methodinfo         *lm;             /* local methodinfo for ICMD_INVOKE*  */
  99         unresolved_method  *um;
 100         builtintable_entry *bte;
 101         methoddesc         *md;
 102         fieldinfo          *fi;
 103         unresolved_field   *uf;
 104         s4                  fieldtype;
 105         s4                 varindex;
 106
 107         /* get required compiler data */
 108
 109         m    = jd->m;
 110         code = jd->code;
 111         cd   = jd->cd;
 112         rd   = jd->rd;
 113
 114         /* prevent compiler warnings */
 115
 116         d         = 0;
 117         fieldtype = 0;
 118         lm        = NULL;
 119         um        = NULL;
 120         uf        = NULL;
 121         bte       = NULL;
 122
 123         {
 124         s4 i, p, t, l;
 125         s4 savedregs_num;
 126
 127         savedregs_num = 0;
 128
 129         /* space to save used callee saved registers */
 130
 131         savedregs_num += (INT_SAV_CNT - rd->savintreguse);
 132         savedregs_num += (FLT_SAV_CNT - rd->savfltreguse) * 2;
 133
 134         cd->stackframesize = rd->memuse + savedregs_num;
 135
 136 #if defined(ENABLE_THREADS)
 137         /* Space to save argument of monitor_enter and Return Values to
 138            survive monitor_exit. The stack position for the argument can
 139            not be shared with place to save the return register on PPC,
 140            since both values reside in R3. */
 141
 142         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
 143                 /* reserve 2 slots for long/double return values for monitorexit */
 144
 145                 if (IS_2_WORD_TYPE(m->parseddesc->returntype.type))
 146                         cd->stackframesize += 3;
 147                 else
 148                         cd->stackframesize += 2;
 149         }
 150
 151 #endif
 152
 153         /* create method header */
 154
 155         /* align stack to 16-bytes */
 156
 157         if (!jd->isleafmethod || JITDATA_HAS_FLAG_VERBOSECALL(jd))
 158                 cd->stackframesize = (cd->stackframesize + 3) & ~3;
 159
 160         else if (jd->isleafmethod && (cd->stackframesize == LA_SIZE_IN_POINTERS))
 161                 cd->stackframesize = 0;
 162
 163         (void) dseg_add_unique_address(cd, code);              /* CodeinfoPointer */
 164         (void) dseg_add_unique_s4(cd, cd->stackframesize * 4); /* FrameSize       */
 165
 166 #if defined(ENABLE_THREADS)
 167         /* IsSync contains the offset relative to the stack pointer for the
 168            argument of monitor_exit used in the exception handler. Since the
 169            offset could be zero and give a wrong meaning of the flag it is
 170            offset by one.
 171         */
 172
 173         if (checksync && (m->flags & ACC_SYNCHRONIZED))
 174                 (void) dseg_add_unique_s4(cd, (rd->memuse + 1) * 4);/* IsSync         */
 175         else
 176 #endif
 177                 (void) dseg_add_unique_s4(cd, 0);                  /* IsSync          */
 178
 179         (void) dseg_add_unique_s4(cd, jd->isleafmethod);       /* IsLeaf          */
 180         (void) dseg_add_unique_s4(cd, INT_SAV_CNT - rd->savintreguse); /* IntSave */
 181         (void) dseg_add_unique_s4(cd, FLT_SAV_CNT - rd->savfltreguse); /* FltSave */
 182
 183         dseg_addlinenumbertablesize(cd);
 184
 185         (void) dseg_add_unique_s4(cd, jd->exceptiontablelength); /* ExTableSize   */
 186
 187         /* create exception table */
 188
 189         for (ex = jd->exceptiontable; ex != NULL; ex = ex->down) {
 190                 dseg_add_target(cd, ex->start);
 191                 dseg_add_target(cd, ex->end);
 192                 dseg_add_target(cd, ex->handler);
 193                 (void) dseg_add_unique_address(cd, ex->catchtype.any);
 194         }
 195
 196 #if defined(ENABLE_PROFILING)
 197         /* generate method profiling code */
 198
 199         if (JITDATA_HAS_FLAG_INSTRUMENT(jd)) {
 200                 /* count frequency */
 201
 202                 M_ALD(REG_ITMP1, REG_PV, CodeinfoPointer);
 203                 M_ALD(REG_ITMP2, REG_ITMP1, OFFSET(codeinfo, frequency));
 204                 M_IADD_IMM(REG_ITMP2, 1, REG_ITMP2);
 205                 M_AST(REG_ITMP2, REG_ITMP1, OFFSET(codeinfo, frequency));
 206
 207 /*              PROFILE_CYCLE_START; */
 208         }
 209 #endif
 210
 211         /* create stack frame (if necessary) */
 212
 213         if (!jd->isleafmethod) {
 214                 M_MFLR(REG_ZERO);
 215                 M_AST(REG_ZERO, REG_SP, LA_LR_OFFSET);
 216         }
 217
 218         if (cd->stackframesize)
 219                 M_STWU(REG_SP, REG_SP, -(cd->stackframesize * 4));
 220
 221         /* save return address and used callee saved registers */
 222
 223         p = cd->stackframesize;
 224         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
 225                 p--; M_IST(rd->savintregs[i], REG_SP, p * 4);
 226         }
 227         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
 228                 p -= 2; M_DST(rd->savfltregs[i], REG_SP, p * 4);
 229         }
 230
 231         /* take arguments out of register or stack frame */
 232
 233         md = m->parseddesc;
 234
 235         for (p = 0, l = 0; p < md->paramcount; p++) {
 236                 t = md->paramtypes[p].type;
 237                 varindex = jd->local_map[l * 5 + t];
 238
 239                 l++;
 240                 if (IS_2_WORD_TYPE(t))    /* increment local counter for 2 word types */
 241                         l++;
 242
 243                 if (varindex == UNUSED)
 244                         continue;
 245
 246                 var = VAR(varindex);
 247                 s1  = md->params[p].regoff;
 248
 249                 if (IS_INT_LNG_TYPE(t)) {
 250                         if (!md->params[p].inmemory) {
 251                                 if (!IS_INMEMORY(var->flags)) {
 252                                         if (IS_2_WORD_TYPE(t))
 253                                                 M_LNGMOVE(s1, var->vv.regoff);
 254                                         else
 255                                                 M_INTMOVE(s1, var->vv.regoff);
 256                                 }
 257                                 else {
 258                                         if (IS_2_WORD_TYPE(t))
 259                                                 M_LST(s1, REG_SP, var->vv.regoff * 4);
 260                                         else
 261                                                 M_IST(s1, REG_SP, var->vv.regoff * 4);
 262                                 }
 263                         }
 264                         else {
 265                                 if (!IS_INMEMORY(var->flags)) {
 266                                         if (IS_2_WORD_TYPE(t))
 267                                                 M_LLD(var->vv.regoff, REG_SP, (cd->stackframesize + s1) * 4);
 268                                         else
 269                                                 M_ILD(var->vv.regoff, REG_SP, (cd->stackframesize + s1) * 4);
 270                                 }
 271                                 else {
 272 #if 1
 273                                         M_ILD(REG_ITMP1, REG_SP, (cd->stackframesize + s1) * 4);
 274                                         M_IST(REG_ITMP1, REG_SP, var->vv.regoff * 4);
 275                                         if (IS_2_WORD_TYPE(t)) {
 276                                                 M_ILD(REG_ITMP1, REG_SP, (cd->stackframesize + s1) * 4 +4);
 277                                                 M_IST(REG_ITMP1, REG_SP, var->vv.regoff * 4 + 4);
 278                                         }
 279 #else
 280                                         /* Reuse Memory Position on Caller Stack */
 281                                         var->vv.regoff = cd->stackframesize + s1;
 282 #endif
 283                                 }
 284                         }
 285                 }
 286                 else {
 287                         if (!md->params[p].inmemory) {
 288                                 if (!IS_INMEMORY(var->flags))
 289                                         M_FLTMOVE(s1, var->vv.regoff);
 290                                 else {
 291                                         if (IS_2_WORD_TYPE(t))
 292                                                 M_DST(s1, REG_SP, var->vv.regoff * 4);
 293                                         else
 294                                                 M_FST(s1, REG_SP, var->vv.regoff * 4);
 295                                 }
 296                         }
 297                         else {
 298                                 if (!IS_INMEMORY(var->flags)) {
 299                                         if (IS_2_WORD_TYPE(t))
 300                                                 M_DLD(var->vv.regoff, REG_SP, (cd->stackframesize + s1) * 4);
 301                                         else
 302                                                 M_FLD(var->vv.regoff, REG_SP, (cd->stackframesize + s1) * 4);
 303                                 }
 304                                 else {
 305 #if 1
 306                                         if (IS_2_WORD_TYPE(t)) {
 307                                                 M_DLD(REG_FTMP1, REG_SP, (cd->stackframesize + s1) * 4);
 308                                                 M_DST(REG_FTMP1, REG_SP, var->vv.regoff * 4);
 309                                                 var->vv.regoff = cd->stackframesize + s1;
 310
 311                                         } else {
 312                                                 M_FLD(REG_FTMP1, REG_SP, (cd->stackframesize + s1) * 4);
 313                                                 M_FST(REG_FTMP1, REG_SP, var->vv.regoff * 4);
 314                                         }
 315 #else
 316                                         /* Reuse Memory Position on Caller Stack */
 317                                         var->vv.regoff = cd->stackframesize + s1;
 318 #endif
 319                                 }
 320                         }
 321                 }
 322         }
 323
 324 #if defined(ENABLE_THREADS)
 325         /* call monitorenter function */
 326
 327         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
 328                 /* stack offset for monitor argument */
 329
 330                 s1 = rd->memuse;
 331
 332 # if !defined(NDEBUG)
 333                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 334                         M_AADD_IMM(REG_SP, -((LA_SIZE_IN_POINTERS + ARG_CNT) * 8), REG_SP);
 335
 336                         for (p = 0; p < INT_ARG_CNT; p++)
 337                                 M_IST(abi_registers_integer_argument[p], REG_SP, LA_SIZE + p * 8);
 338
 339                         for (p = 0; p < FLT_ARG_CNT; p++)
 340                                 M_DST(abi_registers_float_argument[p], REG_SP, LA_SIZE + (INT_ARG_CNT + p) * 8);
 341
 342                         /* ATTENTION: We multiply here with 2, because we use * 8
 343                            above for simplicity and below * 4! */
 344
 345                         s1 += (LA_SIZE_IN_POINTERS + ARG_CNT) * 2;
 346                 }
 347 # endif
 348
 349                 disp = dseg_add_functionptr(cd, LOCK_monitor_enter);
 350                 M_ALD(REG_ITMP3, REG_PV, disp);
 351                 M_MTCTR(REG_ITMP3);
 352
 353                 /* get or test the lock object */
 354
 355                 if (m->flags & ACC_STATIC) {
 356                         disp = dseg_add_address(cd, &m->class->object.header);
 357                         M_ALD(REG_A0, REG_PV, disp);
 358                 }
 359                 else {
 360                         M_TST(REG_A0);
 361                         M_BNE(1);
 362                         M_ALD_INTERN(REG_ZERO, REG_ZERO, EXCEPTION_HARDWARE_NULLPOINTER);
 363                 }
 364
 365                 M_AST(REG_A0, REG_SP, s1 * 4);
 366                 M_JSR;
 367
 368 # if !defined(NDEBUG)
 369                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 370                         for (p = 0; p < INT_ARG_CNT; p++)
 371                                 M_ILD(abi_registers_integer_argument[p], REG_SP, LA_SIZE + p * 8);
 372
 373                         for (p = 0; p < FLT_ARG_CNT; p++)
 374                                 M_DLD(abi_registers_float_argument[p], REG_SP, LA_SIZE + (INT_ARG_CNT + p) * 8);
 375
 376                         M_AADD_IMM(REG_SP, (LA_SIZE_IN_POINTERS + ARG_CNT) * 8, REG_SP);
 377                 }
 378 # endif
 379         }
 380 #endif /* defined(ENABLE_THREADS) */
 381
 382         /* call trace function */
 383
 384         emit_verbosecall_enter(jd);
 385         }
 386
 387         /* end of header generation */
 388
 389         /* create replacement points */
 390
 391         REPLACEMENT_POINTS_INIT(cd, jd);
 392
 393         /* walk through all basic blocks */
 394
 395         for (bptr = jd->basicblocks; bptr != NULL; bptr = bptr->next) {
 396
 397                 bptr->mpc = (s4) (cd->mcodeptr - cd->mcodebase);
 398
 399                 if (bptr->flags >= BBREACHED) {
 400                 /* branch resolving */
 401
 402                 codegen_resolve_branchrefs(cd, bptr);
 403
 404                 /* handle replacement points */
 405
 406                 REPLACEMENT_POINT_BLOCK_START(cd, bptr);
 407
 408 #if defined(ENABLE_PROFILING)
 409                 /* generate basicblock profiling code */
 410
 411                 if (JITDATA_HAS_FLAG_INSTRUMENT(jd)) {
 412                         /* count frequency */
 413
 414                         disp = dseg_add_address(cd, code->bbfrequency);
 415                         M_ALD(REG_ITMP2, REG_PV, disp);
 416                         M_ALD(REG_ITMP3, REG_ITMP2, bptr->nr * 4);
 417                         M_IADD_IMM(REG_ITMP3, 1, REG_ITMP3);
 418                         M_AST(REG_ITMP3, REG_ITMP2, bptr->nr * 4);
 419
 420                         /* if this is an exception handler, start profiling again */
 421
 422 /*                      if (bptr->type == BBTYPE_EXH) */
 423 /*                              PROFILE_CYCLE_START; */
 424                 }
 425 #endif
 426
 427                 /* copy interface registers to their destination */
 428
 429                 len = bptr->indepth;
 430                 MCODECHECK(64+len);
 431
 432 #if defined(ENABLE_LSRA)
 433                 if (opt_lsra) {
 434                         while (src != NULL) {
 435                                 len--;
 436                                 if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 437                                         /* d = reg_of_var(m, src, REG_ITMP1); */
 438                                         if (!IS_INMEMORY(src->flags))
 439                                                 d = src->vv.regoff;
 440                                         else
 441                                                 d = REG_ITMP1;
 442                                         M_INTMOVE(REG_ITMP1, d);
 443                                         emit_store(jd, NULL, src, d);
 444                                 }
 445                                 src = src->prev;
 446                         }
 447                 } else {
 448 #endif
 449                 while (len > 0) {
 450                         len--;
 451                         var = VAR(bptr->invars[len]);
 452                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 453                                 d = codegen_reg_of_var(0, var, REG_ITMP1);
 454                                 M_INTMOVE(REG_ITMP1, d);
 455                                 emit_store(jd, NULL, var, d);
 456                         }
 457                         else {
 458                                 assert((var->flags & INOUT));
 459                         }
 460                 }
 461
 462 #if defined(ENABLE_LSRA)
 463                 }
 464 #endif
 465                 /* walk through all instructions */
 466
 467                 len = bptr->icount;
 468                 currentline = 0;
 469
 470                 for (iptr = bptr->iinstr; len > 0; len--, iptr++) {
 471                         if (iptr->line != currentline) {
 472                                 dseg_addlinenumber(cd, iptr->line);
 473                                 currentline = iptr->line;
 474                         }
 475
 476                         MCODECHECK(64);   /* an instruction usually needs < 64 words      */
 477
 478                 switch (iptr->opc) {
 479                 case ICMD_NOP:        /* ...  ==> ...                                 */
 480                 case ICMD_POP:        /* ..., value  ==> ...                          */
 481                 case ICMD_POP2:       /* ..., value, value  ==> ...                   */
 482                         break;
 483
 484                 case ICMD_INLINE_START:
 485
 486                         REPLACEMENT_POINT_INLINE_START(cd, iptr);
 487                         break;
 488
 489                 case ICMD_INLINE_BODY:
 490
 491                         REPLACEMENT_POINT_INLINE_BODY(cd, iptr);
 492                         dseg_addlinenumber_inline_start(cd, iptr);
 493                         dseg_addlinenumber(cd, iptr->line);
 494                         break;
 495
 496                 case ICMD_INLINE_END:
 497
 498                         dseg_addlinenumber_inline_end(cd, iptr);
 499                         dseg_addlinenumber(cd, iptr->line);
 500                         break;
 501
 502                 case ICMD_CHECKNULL:  /* ..., objectref  ==> ..., objectref           */
 503
 504                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 505                         emit_nullpointer_check(cd, iptr, s1);
 506                         break;
 507
 508                 /* constant operations ************************************************/
 509
 510                 case ICMD_ICONST:     /* ...  ==> ..., constant                       */
 511
 512                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 513                         ICONST(d, iptr->sx.val.i);
 514                         emit_store_dst(jd, iptr, d);
 515                         break;
 516
 517                 case ICMD_LCONST:     /* ...  ==> ..., constant                       */
 518
 519                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 520                         LCONST(d, iptr->sx.val.l);
 521                         emit_store_dst(jd, iptr, d);
 522                         break;
 523
 524                 case ICMD_FCONST:     /* ...  ==> ..., constant                       */
 525
 526                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 527                         a = dseg_add_float(cd, iptr->sx.val.f);
 528                         M_FLD(d, REG_PV, a);
 529                         emit_store_dst(jd, iptr, d);
 530                         break;
 531
 532                 case ICMD_DCONST:     /* ...  ==> ..., constant                       */
 533
 534                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 535                         a = dseg_add_double(cd, iptr->sx.val.d);
 536                         M_DLD(d, REG_PV, a);
 537                         emit_store_dst(jd, iptr, d);
 538                         break;
 539
 540                 case ICMD_ACONST:     /* ...  ==> ..., constant                       */
 541
 542                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 543
 544                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
 545                                 constant_classref *cr = iptr->sx.val.c.ref;;
 546
 547                                 disp = dseg_add_unique_address(cd, cr);
 548
 549                                 codegen_addpatchref(cd, PATCHER_resolve_classref_to_classinfo,
 550                                                                         cr, disp);
 551                         }
 552                         else
 553                                 disp = dseg_add_address(cd, iptr->sx.val.anyptr);
 554
 555                         M_ALD(d, REG_PV, disp);
 556                         emit_store_dst(jd, iptr, d);
 557                         break;
 558
 559
 560                 /* load/store/copy/move operations ************************************/
 561
 562                 case ICMD_ILOAD:      /* ...  ==> ..., content of local variable      */
 563                 case ICMD_ALOAD:      /* s1 = local variable                          */
 564                 case ICMD_LLOAD:
 565                 case ICMD_FLOAD:
 566                 case ICMD_DLOAD:
 567                 case ICMD_ISTORE:     /* ..., value  ==> ...                          */
 568                 case ICMD_LSTORE:
 569                 case ICMD_FSTORE:
 570                 case ICMD_DSTORE:
 571                 case ICMD_COPY:
 572                 case ICMD_MOVE:
 573
 574                         emit_copy(jd, iptr);
 575                         break;
 576
 577                 case ICMD_ASTORE:
 578
 579                         if (!(iptr->flags.bits & INS_FLAG_RETADDR))
 580                                 emit_copy(jd, iptr);
 581                         break;
 582
 583
 584                 /* integer operations *************************************************/
 585
 586                 case ICMD_INEG:       /* ..., value  ==> ..., - value                 */
 587
 588                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 589                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 590                         M_NEG(s1, d);
 591                         emit_store_dst(jd, iptr, d);
 592                         break;
 593
 594                 case ICMD_LNEG:       /* ..., value  ==> ..., - value                 */
 595
 596                         s1 = emit_load_s1(jd, iptr, REG_ITMP12_PACKED);
 597                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 598                         M_SUBFIC(GET_LOW_REG(s1), 0, GET_LOW_REG(d));
 599                         M_SUBFZE(GET_HIGH_REG(s1), GET_HIGH_REG(d));
 600                         emit_store_dst(jd, iptr, d);
 601                         break;
 602
 603                 case ICMD_I2L:        /* ..., value  ==> ..., value                   */
 604
 605                         s1 = emit_load_s1(jd, iptr, REG_ITMP2);
 606                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 607                         M_INTMOVE(s1, GET_LOW_REG(d));
 608                         M_SRA_IMM(GET_LOW_REG(d), 31, GET_HIGH_REG(d));
 609                         emit_store_dst(jd, iptr, d);
 610                         break;
 611
 612                 case ICMD_L2I:        /* ..., value  ==> ..., value                   */
 613
 614                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP2);
 615                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 616                         M_INTMOVE(s1, d);
 617                         emit_store_dst(jd, iptr, d);
 618                         break;
 619
 620                 case ICMD_INT2BYTE:   /* ..., value  ==> ..., value                   */
 621
 622                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 623                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 624                         M_BSEXT(s1, d);
 625                         emit_store_dst(jd, iptr, d);
 626                         break;
 627
 628                 case ICMD_INT2CHAR:   /* ..., value  ==> ..., value                   */
 629
 630                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 631                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 632                         M_CZEXT(s1, d);
 633                         emit_store_dst(jd, iptr, d);
 634                         break;
 635
 636                 case ICMD_INT2SHORT:  /* ..., value  ==> ..., value                   */
 637
 638                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 639                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 640                         M_SSEXT(s1, d);
 641                         emit_store_dst(jd, iptr, d);
 642                         break;
 643
 644
 645                 case ICMD_IADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 646
 647                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 648                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 649                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 650                         M_IADD(s1, s2, d);
 651                         emit_store_dst(jd, iptr, d);
 652                         break;
 653
 654                                       /* s1.localindex = variable, sx.val.i = constant*/
 655
 656                 case ICMD_IINC:
 657                 case ICMD_IADDCONST:
 658
 659                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 660                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 661                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767)) {
 662                                 M_IADD_IMM(s1, iptr->sx.val.i, d);
 663                         } else {
 664                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 665                                 M_IADD(s1, REG_ITMP2, d);
 666                         }
 667                         /* XXX the old code for ICMD_IINC was as follows:
 668                         {
 669                                 u4 m = iptr->sx.val.i;
 670                                 if (m & 0x8000)
 671                                         m += 65536;
 672                                 if (m & 0xffff0000)
 673                                         M_ADDIS(s1, m >> 16, d);
 674                                 if (m & 0xffff)
 675                                         M_IADD_IMM(s1, m & 0xffff, d);
 676                         }
 677                         */
 678                         emit_store_dst(jd, iptr, d);
 679                         break;
 680
 681                 case ICMD_LADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 682
 683                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 684                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
 685                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 686                         M_ADDC(s1, s2, GET_LOW_REG(d));
 687                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
 688                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP3);/* don't use REG_ITMP2*/
 689                         M_ADDE(s1, s2, GET_HIGH_REG(d));
 690                         emit_store_dst(jd, iptr, d);
 691                         break;
 692
 693                 case ICMD_LADDCONST:  /* ..., value  ==> ..., value + constant        */
 694                                       /* sx.val.l = constant                          */
 695
 696                         s3 = iptr->sx.val.l & 0xffffffff;
 697                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 698                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 699                         if ((s3 >= -32768) && (s3 <= 32767))
 700                                 M_ADDIC(s1, s3, GET_LOW_REG(d));
 701                         else {
 702                                 ICONST(REG_ITMP2, s3);
 703                                 M_ADDC(s1, REG_ITMP2, GET_LOW_REG(d));
 704                         }
 705                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
 706                         s3 = iptr->sx.val.l >> 32;
 707                         if (s3 == -1)
 708                                 M_ADDME(s1, GET_HIGH_REG(d));
 709                         else if (s3 == 0)
 710                                 M_ADDZE(s1, GET_HIGH_REG(d));
 711                         else {
 712                                 ICONST(REG_ITMP3, s3);                 /* don't use REG_ITMP2 */
 713                                 M_ADDE(s1, REG_ITMP3, GET_HIGH_REG(d));
 714                         }
 715                         emit_store_dst(jd, iptr, d);
 716                         break;
 717
 718                 case ICMD_ISUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 719
 720                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 721                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 722                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 723                         M_ISUB(s1, s2, d);
 724                         emit_store_dst(jd, iptr, d);
 725                         break;
 726
 727                 case ICMD_ISUBCONST:  /* ..., value  ==> ..., value + constant        */
 728                                       /* sx.val.i = constant                          */
 729
 730                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 731                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 732                         if ((iptr->sx.val.i >= -32767) && (iptr->sx.val.i <= 32768))
 733                                 M_IADD_IMM(s1, -iptr->sx.val.i, d);
 734                         else {
 735                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 736                                 M_ISUB(s1, REG_ITMP2, d);
 737                         }
 738                         emit_store_dst(jd, iptr, d);
 739                         break;
 740
 741                 case ICMD_LSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 742
 743                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 744                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
 745                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 746                         M_SUBC(s1, s2, GET_LOW_REG(d));
 747                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
 748                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP3);/* don't use REG_ITMP2*/
 749                         M_SUBE(s1, s2, GET_HIGH_REG(d));
 750                         emit_store_dst(jd, iptr, d);
 751                         break;
 752
 753                 case ICMD_LSUBCONST:  /* ..., value  ==> ..., value - constant        */
 754                                       /* sx.val.l = constant                          */
 755
 756                         s3 = (-iptr->sx.val.l) & 0xffffffff;
 757                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 758                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 759                         if ((s3 >= -32768) && (s3 <= 32767)) {
 760                                 M_ADDIC(s1, s3, GET_LOW_REG(d));
 761                         } else {
 762                                 ICONST(REG_ITMP2, s3);
 763                                 M_ADDC(s1, REG_ITMP2, GET_LOW_REG(d));
 764                         }
 765                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
 766                         s3 = (-iptr->sx.val.l) >> 32;
 767                         if (s3 == -1)
 768                                 M_ADDME(s1, GET_HIGH_REG(d));
 769                         else if (s3 == 0)
 770                                 M_ADDZE(s1, GET_HIGH_REG(d));
 771                         else {
 772                                 ICONST(REG_ITMP3, s3);                 /* don't use REG_ITMP2 */
 773                                 M_ADDE(s1, REG_ITMP3, GET_HIGH_REG(d));
 774                         }
 775                         emit_store_dst(jd, iptr, d);
 776                         break;
 777
 778                 case ICMD_IDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 779
 780                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 781                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 782                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 783                         emit_arithmetic_check(cd, iptr, s2);
 784                         M_LDAH(REG_ITMP3, REG_ZERO, 0x8000);
 785                         M_CMP(REG_ITMP3, s1);
 786                         M_BNE(3 + (s1 != d));
 787                         M_CMPI(s2, -1);
 788                         M_BNE(1 + (s1 != d));
 789                         M_INTMOVE(s1, d);
 790                         M_BR(1);
 791                         M_IDIV(s1, s2, d);
 792                         emit_store_dst(jd, iptr, d);
 793                         break;
 794
 795                 case ICMD_IREM:       /* ..., 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_ITMP2);
 800                         emit_arithmetic_check(cd, iptr, s2);
 801                         M_LDAH(REG_ITMP3, REG_ZERO, 0x8000);
 802                         M_CMP(REG_ITMP3, s1);
 803                         M_BNE(4);
 804                         M_CMPI(s2, -1);
 805                         M_BNE(2);
 806                         M_CLR(d);
 807                         M_BR(3);
 808                         M_IDIV(s1, s2, REG_ITMP3);
 809                         M_IMUL(REG_ITMP3, s2, REG_ITMP3);
 810                         M_ISUB(s1, REG_ITMP3, d);
 811                         emit_store_dst(jd, iptr, d);
 812                         break;
 813
 814                 case ICMD_LDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 815                 case ICMD_LREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 816
 817                         s1 = emit_load_s1(jd, iptr, REG_A0_A1_PACKED);
 818                         s2 = emit_load_s2(jd, iptr, REG_A2_A3_PACKED);
 819
 820                         /* XXX TODO: only do this if arithmetic check is really done! */
 821                         M_OR_TST(GET_HIGH_REG(s2), GET_LOW_REG(s2), REG_ITMP3);
 822                         /* XXX could be optimized */
 823                         emit_arithmetic_check(cd, iptr, REG_ITMP3);
 824
 825                         bte = iptr->sx.s23.s3.bte;
 826                         disp = dseg_add_functionptr(cd, bte->fp);
 827                         M_ALD(REG_ITMP3, REG_PV, disp);
 828                         M_MTCTR(REG_ITMP3);
 829
 830                         M_LNGMOVE(s1, REG_A0_A1_PACKED);
 831                         M_LNGMOVE(s2, REG_A2_A3_PACKED);
 832
 833                         M_JSR;
 834
 835                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
 836                         M_LNGMOVE(REG_RESULT_PACKED, d);
 837                         emit_store_dst(jd, iptr, d);
 838                         break;
 839
 840                 case ICMD_IMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 841
 842                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 843                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 844                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 845                         M_IMUL(s1, s2, d);
 846                         emit_store_dst(jd, iptr, d);
 847                         break;
 848
 849                 case ICMD_IMULCONST:  /* ..., value  ==> ..., value * constant        */
 850                                       /* sx.val.i = constant                          */
 851
 852                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 853                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 854                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767))
 855                                 M_IMUL_IMM(s1, iptr->sx.val.i, d);
 856                         else {
 857                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 858                                 M_IMUL(s1, REG_ITMP3, d);
 859                         }
 860                         emit_store_dst(jd, iptr, d);
 861                         break;
 862
 863                 case ICMD_IDIVPOW2:   /* ..., value  ==> ..., value << constant       */
 864
 865                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 866                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 867                         M_SRA_IMM(s1, iptr->sx.val.i, d);
 868                         M_ADDZE(d, d);
 869                         emit_store_dst(jd, iptr, d);
 870                         break;
 871
 872                 case ICMD_ISHL:       /* ..., 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_ITMP2);
 877                         M_AND_IMM(s2, 0x1f, REG_ITMP3);
 878                         M_SLL(s1, REG_ITMP3, d);
 879                         emit_store_dst(jd, iptr, d);
 880                         break;
 881
 882                 case ICMD_ISHLCONST:  /* ..., value  ==> ..., value << constant       */
 883                                       /* sx.val.i = constant                          */
 884
 885                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 886                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 887                         M_SLL_IMM(s1, iptr->sx.val.i & 0x1f, d);
 888                         emit_store_dst(jd, iptr, d);
 889                         break;
 890
 891                 case ICMD_ISHR:       /* ..., val1, val2  ==> ..., val1 >> val2       */
 892
 893                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 894                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 895                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 896                         M_AND_IMM(s2, 0x1f, REG_ITMP3);
 897                         M_SRA(s1, REG_ITMP3, d);
 898                         emit_store_dst(jd, iptr, d);
 899                         break;
 900
 901                 case ICMD_ISHRCONST:  /* ..., value  ==> ..., value >> constant       */
 902                                       /* sx.val.i = constant                          */
 903
 904                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 905                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 906                         M_SRA_IMM(s1, iptr->sx.val.i & 0x1f, d);
 907                         emit_store_dst(jd, iptr, d);
 908                         break;
 909
 910                 case ICMD_IUSHR:      /* ..., val1, val2  ==> ..., val1 >>> val2      */
 911
 912                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 913                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 914                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 915                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 916                         M_SRL(s1, REG_ITMP2, d);
 917                         emit_store_dst(jd, iptr, d);
 918                         break;
 919
 920                 case ICMD_IUSHRCONST: /* ..., value  ==> ..., value >>> constant      */
 921                                       /* sx.val.i = constant                          */
 922
 923                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 924                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 925                         if (iptr->sx.val.i & 0x1f)
 926                                 M_SRL_IMM(s1, iptr->sx.val.i & 0x1f, d);
 927                         else {
 928                                 M_INTMOVE(s1, d);
 929                         }
 930                         emit_store_dst(jd, iptr, d);
 931                         break;
 932
 933                 case ICMD_IAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 934
 935                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 936                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 937                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 938                         M_AND(s1, s2, d);
 939                         emit_store_dst(jd, iptr, d);
 940                         break;
 941
 942                 case ICMD_IANDCONST:  /* ..., value  ==> ..., value & constant        */
 943                                       /* sx.val.i = constant                          */
 944
 945                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 946                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 947                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
 948                                 M_AND_IMM(s1, iptr->sx.val.i, d);
 949                         /*
 950                         else if (iptr->sx.val.i == 0xffffff) {
 951                                 M_RLWINM(s1, 0, 8, 31, d);
 952                                 }
 953                         */
 954                         else {
 955                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 956                                 M_AND(s1, REG_ITMP3, d);
 957                         }
 958                         emit_store_dst(jd, iptr, d);
 959                         break;
 960
 961                 case ICMD_LAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 962
 963                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 964                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
 965                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 966                         M_AND(s1, s2, GET_LOW_REG(d));
 967                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
 968                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP3);/* don't use REG_ITMP2*/
 969                         M_AND(s1, s2, GET_HIGH_REG(d));
 970                         emit_store_dst(jd, iptr, d);
 971                         break;
 972
 973                 case ICMD_LANDCONST:  /* ..., value  ==> ..., value & constant        */
 974                                       /* sx.val.l = constant                          */
 975
 976                         s3 = iptr->sx.val.l & 0xffffffff;
 977                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 978                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 979                         if ((s3 >= 0) && (s3 <= 65535))
 980                                 M_AND_IMM(s1, s3, GET_LOW_REG(d));
 981                         else {
 982                                 ICONST(REG_ITMP3, s3);
 983                                 M_AND(s1, REG_ITMP3, GET_LOW_REG(d));
 984                         }
 985                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
 986                         s3 = iptr->sx.val.l >> 32;
 987                         if ((s3 >= 0) && (s3 <= 65535))
 988                                 M_AND_IMM(s1, s3, GET_HIGH_REG(d));
 989                         else {
 990                                 ICONST(REG_ITMP3, s3);                 /* don't use REG_ITMP2 */
 991                                 M_AND(s1, REG_ITMP3, GET_HIGH_REG(d));
 992                         }
 993                         emit_store_dst(jd, iptr, d);
 994                         break;
 995
 996                 case ICMD_IREMPOW2:   /* ..., value  ==> ..., value % constant        */
 997                                       /* sx.val.i = constant                          */
 998
 999                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1000                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1001                         M_MOV(s1, REG_ITMP2);
1002                         M_CMPI(s1, 0);
1003                         M_BGE(1 + 2*(iptr->sx.val.i >= 32768));
1004                         if (iptr->sx.val.i >= 32768) {
1005                                 M_ADDIS(REG_ZERO, iptr->sx.val.i >> 16, REG_ITMP2);
1006                                 M_OR_IMM(REG_ITMP2, iptr->sx.val.i, REG_ITMP2);
1007                                 M_IADD(s1, REG_ITMP2, REG_ITMP2);
1008                         }
1009                         else {
1010                                 M_IADD_IMM(s1, iptr->sx.val.i, REG_ITMP2);
1011                         }
1012                         {
1013                                 int b=0, m = iptr->sx.val.i;
1014                                 while (m >>= 1)
1015                                         ++b;
1016                                 M_RLWINM(REG_ITMP2, 0, 0, 30-b, REG_ITMP2);
1017                         }
1018                         M_ISUB(s1, REG_ITMP2, d);
1019                         emit_store_dst(jd, iptr, d);
1020                         break;
1021
1022                 case ICMD_IOR:        /* ..., val1, val2  ==> ..., val1 | val2        */
1023
1024                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1025                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1026                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1027                         M_OR(s1, s2, d);
1028                         emit_store_dst(jd, iptr, d);
1029                         break;
1030
1031                 case ICMD_IORCONST:   /* ..., value  ==> ..., value | constant        */
1032                                       /* sx.val.i = constant                          */
1033
1034                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1035                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1036                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
1037                                 M_OR_IMM(s1, iptr->sx.val.i, d);
1038                         else {
1039                                 ICONST(REG_ITMP3, iptr->sx.val.i);
1040                                 M_OR(s1, REG_ITMP3, d);
1041                         }
1042                         emit_store_dst(jd, iptr, d);
1043                         break;
1044
1045                 case ICMD_LOR:       /* ..., val1, val2  ==> ..., val1 | val2        */
1046
1047                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1048                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1049                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1050                         M_OR(s1, s2, GET_LOW_REG(d));
1051                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1052                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP3);/* don't use REG_ITMP2*/
1053                         M_OR(s1, s2, GET_HIGH_REG(d));
1054                         emit_store_dst(jd, iptr, d);
1055                         break;
1056
1057                 case ICMD_LORCONST:   /* ..., value  ==> ..., value | constant        */
1058                                       /* sx.val.l = constant                          */
1059
1060                         s3 = iptr->sx.val.l & 0xffffffff;
1061                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1062                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1063                         if ((s3 >= 0) && (s3 <= 65535))
1064                                 M_OR_IMM(s1, s3, GET_LOW_REG(d));
1065                         else {
1066                                 ICONST(REG_ITMP3, s3);
1067                                 M_OR(s1, REG_ITMP3, GET_LOW_REG(d));
1068                         }
1069                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1070                         s3 = iptr->sx.val.l >> 32;
1071                         if ((s3 >= 0) && (s3 <= 65535))
1072                                 M_OR_IMM(s1, s3, GET_HIGH_REG(d));
1073                         else {
1074                                 ICONST(REG_ITMP3, s3);                 /* don't use REG_ITMP2 */
1075                                 M_OR(s1, REG_ITMP3, GET_HIGH_REG(d));
1076                         }
1077                         emit_store_dst(jd, iptr, d);
1078                         break;
1079
1080                 case ICMD_IXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
1081
1082                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1083                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1084                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1085                         M_XOR(s1, s2, d);
1086                         emit_store_dst(jd, iptr, d);
1087                         break;
1088
1089                 case ICMD_IXORCONST:  /* ..., value  ==> ..., value ^ constant        */
1090                                       /* sx.val.i = constant                          */
1091
1092                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1093                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1094                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
1095                                 M_XOR_IMM(s1, iptr->sx.val.i, d);
1096                         else {
1097                                 ICONST(REG_ITMP3, iptr->sx.val.i);
1098                                 M_XOR(s1, REG_ITMP3, d);
1099                         }
1100                         emit_store_dst(jd, iptr, d);
1101                         break;
1102
1103                 case ICMD_LXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
1104
1105                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1106                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1107                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1108                         M_XOR(s1, s2, GET_LOW_REG(d));
1109                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1110                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP3);/* don't use REG_ITMP2*/
1111                         M_XOR(s1, s2, GET_HIGH_REG(d));
1112                         emit_store_dst(jd, iptr, d);
1113                         break;
1114
1115                 case ICMD_LXORCONST:  /* ..., value  ==> ..., value ^ constant        */
1116                                       /* sx.val.l = constant                          */
1117
1118                         s3 = iptr->sx.val.l & 0xffffffff;
1119                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1120                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1121                         if ((s3 >= 0) && (s3 <= 65535))
1122                                 M_XOR_IMM(s1, s3, GET_LOW_REG(d));
1123                         else {
1124                                 ICONST(REG_ITMP3, s3);
1125                                 M_XOR(s1, REG_ITMP3, GET_LOW_REG(d));
1126                         }
1127                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1128                         s3 = iptr->sx.val.l >> 32;
1129                         if ((s3 >= 0) && (s3 <= 65535))
1130                                 M_XOR_IMM(s1, s3, GET_HIGH_REG(d));
1131                         else {
1132                                 ICONST(REG_ITMP3, s3);                 /* don't use REG_ITMP2 */
1133                                 M_XOR(s1, REG_ITMP3, GET_HIGH_REG(d));
1134                         }
1135                         emit_store_dst(jd, iptr, d);
1136                         break;
1137
1138                 case ICMD_LCMP:       /* ..., val1, val2  ==> ..., val1 cmp val2      */
1139
1140                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
1141                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1142                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1143                         vm_abort("codegen: implement ICMD_LCMP!");
1144                         emit_store_dst(jd, iptr, d);
1145                         break;
1146
1147
1148                 /* floating operations ************************************************/
1149
1150                 case ICMD_FNEG:       /* ..., value  ==> ..., - value                 */
1151
1152                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1153                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1154                         M_FMOVN(s1, d);
1155                         emit_store_dst(jd, iptr, d);
1156                         break;
1157
1158                 case ICMD_DNEG:       /* ..., value  ==> ..., - value                 */
1159
1160                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1161                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1162                         M_FMOVN(s1, d);
1163                         emit_store_dst(jd, iptr, d);
1164                         break;
1165
1166                 case ICMD_FADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
1167
1168                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1169                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1170                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1171                         M_FADD(s1, s2, d);
1172                         emit_store_dst(jd, iptr, d);
1173                         break;
1174
1175                 case ICMD_DADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
1176
1177                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1178                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1179                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1180                         M_DADD(s1, s2, d);
1181                         emit_store_dst(jd, iptr, d);
1182                         break;
1183
1184                 case ICMD_FSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
1185
1186                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1187                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1188                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1189                         M_FSUB(s1, s2, d);
1190                         emit_store_dst(jd, iptr, d);
1191                         break;
1192
1193                 case ICMD_DSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
1194
1195                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1196                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1197                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1198                         M_DSUB(s1, s2, d);
1199                         emit_store_dst(jd, iptr, d);
1200                         break;
1201
1202                 case ICMD_FMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1203
1204                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1205                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1206                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1207                         M_FMUL(s1, s2, d);
1208                         emit_store_dst(jd, iptr, d);
1209                         break;
1210
1211                 case ICMD_DMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1212
1213                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1214                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1215                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1216                         M_DMUL(s1, s2, d);
1217                         emit_store_dst(jd, iptr, d);
1218                         break;
1219
1220                 case ICMD_FDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1221
1222                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1223                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1224                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1225                         M_FDIV(s1, s2, d);
1226                         emit_store_dst(jd, iptr, d);
1227                         break;
1228
1229                 case ICMD_DDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1230
1231                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1232                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1233                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1234                         M_DDIV(s1, s2, d);
1235                         emit_store_dst(jd, iptr, d);
1236                         break;
1237
1238                 case ICMD_F2I:       /* ..., value  ==> ..., (int) value              */
1239                 case ICMD_D2I:
1240
1241                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1242                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1243                         M_CLR(d);
1244                         disp = dseg_add_float(cd, 0.0);
1245                         M_FLD(REG_FTMP2, REG_PV, disp);
1246                         M_FCMPU(s1, REG_FTMP2);
1247                         M_BNAN(4);
1248                         disp = dseg_add_unique_s4(cd, 0);
1249                         M_CVTDL_C(s1, REG_FTMP1);
1250                         M_LDA(REG_ITMP1, REG_PV, disp);
1251                         M_STFIWX(REG_FTMP1, 0, REG_ITMP1);
1252                         M_ILD(d, REG_PV, disp);
1253                         emit_store_dst(jd, iptr, d);
1254                         break;
1255
1256                 case ICMD_F2D:       /* ..., value  ==> ..., (double) value           */
1257
1258                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1259                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1260                         M_FLTMOVE(s1, d);
1261                         emit_store_dst(jd, iptr, d);
1262                         break;
1263
1264                 case ICMD_D2F:       /* ..., value  ==> ..., (double) value           */
1265
1266                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1267                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1268                         M_CVTDF(s1, d);
1269                         emit_store_dst(jd, iptr, d);
1270                         break;
1271
1272                 case ICMD_FCMPL:      /* ..., val1, val2  ==> ..., val1 fcmpg val2    */
1273                 case ICMD_DCMPL:      /* == => 0, < => 1, > => -1                     */
1274
1275
1276                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1277                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1278                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1279                         M_FCMPU(s2, s1);
1280                         M_IADD_IMM(REG_ZERO, -1, d);
1281                         M_BNAN(4);
1282                         M_BGT(3);
1283                         M_IADD_IMM(REG_ZERO, 0, d);
1284                         M_BGE(1);
1285                         M_IADD_IMM(REG_ZERO, 1, d);
1286                         emit_store_dst(jd, iptr, d);
1287                         break;
1288
1289                 case ICMD_FCMPG:      /* ..., val1, val2  ==> ..., val1 fcmpl val2    */
1290                 case ICMD_DCMPG:      /* == => 0, < => 1, > => -1                     */
1291
1292                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1293                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1294                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1295                         M_FCMPU(s1, s2);
1296                         M_IADD_IMM(REG_ZERO, 1, d);
1297                         M_BNAN(4);
1298                         M_BGT(3);
1299                         M_IADD_IMM(REG_ZERO, 0, d);
1300                         M_BGE(1);
1301                         M_IADD_IMM(REG_ZERO, -1, d);
1302                         emit_store_dst(jd, iptr, d);
1303                         break;
1304
1305                 case ICMD_IF_FCMPEQ:    /* ..., value, value ==> ...                  */
1306                 case ICMD_IF_DCMPEQ:
1307
1308                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1309                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1310                         M_FCMPU(s1, s2);
1311                         M_BNAN(1);
1312                         emit_beq(cd, iptr->dst.block);
1313                         break;
1314
1315                 case ICMD_IF_FCMPNE:    /* ..., value, value ==> ...                  */
1316                 case ICMD_IF_DCMPNE:
1317
1318                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1319                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1320                         M_FCMPU(s1, s2);
1321                         emit_bnan(cd, iptr->dst.block);
1322                         emit_bne(cd, iptr->dst.block);
1323                         break;
1324
1325
1326                 case ICMD_IF_FCMPL_LT:  /* ..., value, value ==> ...                  */
1327                 case ICMD_IF_DCMPL_LT:
1328
1329                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1330                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1331                         M_FCMPU(s1, s2);
1332                         emit_bnan(cd, iptr->dst.block);
1333                         emit_blt(cd, iptr->dst.block);
1334                         break;
1335
1336                 case ICMD_IF_FCMPL_GT:  /* ..., value, value ==> ...                  */
1337                 case ICMD_IF_DCMPL_GT:
1338
1339                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1340                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1341                         M_FCMPU(s1, s2);
1342                         M_BNAN(1);
1343                         emit_bgt(cd, iptr->dst.block);
1344                         break;
1345
1346                 case ICMD_IF_FCMPL_LE:  /* ..., value, value ==> ...                  */
1347                 case ICMD_IF_DCMPL_LE:
1348
1349                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1350                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1351                         M_FCMPU(s1, s2);
1352                         emit_bnan(cd, iptr->dst.block);
1353                         emit_ble(cd, iptr->dst.block);
1354                         break;
1355
1356                 case ICMD_IF_FCMPL_GE:  /* ..., value, value ==> ...                  */
1357                 case ICMD_IF_DCMPL_GE:
1358
1359                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1360                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1361                         M_FCMPU(s1, s2);
1362                         M_BNAN(1);
1363                         emit_bge(cd, iptr->dst.block);
1364                         break;
1365
1366                 case ICMD_IF_FCMPG_LT:  /* ..., value, value ==> ...                  */
1367                 case ICMD_IF_DCMPG_LT:
1368
1369                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1370                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1371                         M_FCMPU(s1, s2);
1372                         M_BNAN(1);
1373                         emit_blt(cd, iptr->dst.block);
1374                         break;
1375
1376                 case ICMD_IF_FCMPG_GT:  /* ..., value, value ==> ...                  */
1377                 case ICMD_IF_DCMPG_GT:
1378
1379                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1380                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1381                         M_FCMPU(s1, s2);
1382                         emit_bnan(cd, iptr->dst.block);
1383                         emit_bgt(cd, iptr->dst.block);
1384                         break;
1385
1386                 case ICMD_IF_FCMPG_LE:  /* ..., value, value ==> ...                  */
1387                 case ICMD_IF_DCMPG_LE:
1388
1389                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1390                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1391                         M_FCMPU(s1, s2);
1392                         M_BNAN(1);
1393                         emit_ble(cd, iptr->dst.block);
1394                         break;
1395
1396                 case ICMD_IF_FCMPG_GE:  /* ..., value, value ==> ...                  */
1397                 case ICMD_IF_DCMPG_GE:
1398
1399                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1400                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1401                         M_FCMPU(s1, s2);
1402                         emit_bnan(cd, iptr->dst.block);
1403                         emit_bge(cd, iptr->dst.block);
1404                         break;
1405
1406
1407                 /* memory operations **************************************************/
1408
1409                 case ICMD_ARRAYLENGTH: /* ..., arrayref  ==> ..., length              */
1410
1411                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1412                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1413                         /* implicit null-pointer check */
1414                         M_ILD(d, s1, OFFSET(java_arrayheader, size));
1415                         emit_store_dst(jd, iptr, d);
1416                         break;
1417
1418                 case ICMD_BALOAD:     /* ..., arrayref, index  ==> ..., value         */
1419
1420                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1421                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1422                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1423                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1424                         M_IADD_IMM(s2, OFFSET(java_bytearray, data[0]), REG_ITMP2);
1425                         /* implicit null-pointer check */
1426                         M_LBZX(d, s1, REG_ITMP2);
1427                         M_BSEXT(d, d);
1428                         emit_store_dst(jd, iptr, d);
1429                         break;
1430
1431                 case ICMD_CALOAD:     /* ..., arrayref, index  ==> ..., value         */
1432
1433                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1434                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1435                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1436                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1437                         M_SLL_IMM(s2, 1, REG_ITMP2);
1438                         M_IADD_IMM(REG_ITMP2, OFFSET(java_chararray, data[0]), REG_ITMP2);
1439                         /* implicit null-pointer check */
1440                         M_LHZX(d, s1, REG_ITMP2);
1441                         emit_store_dst(jd, iptr, d);
1442                         break;
1443
1444                 case ICMD_SALOAD:     /* ..., arrayref, index  ==> ..., value         */
1445
1446                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1447                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1448                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1449                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1450                         M_SLL_IMM(s2, 1, REG_ITMP2);
1451                         M_IADD_IMM(REG_ITMP2, OFFSET(java_shortarray, data[0]), REG_ITMP2);
1452                         /* implicit null-pointer check */
1453                         M_LHAX(d, s1, REG_ITMP2);
1454                         emit_store_dst(jd, iptr, d);
1455                         break;
1456
1457                 case ICMD_IALOAD:     /* ..., arrayref, index  ==> ..., value         */
1458
1459                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1460                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1461                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1462                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1463                         M_SLL_IMM(s2, 2, REG_ITMP2);
1464                         M_IADD_IMM(REG_ITMP2, OFFSET(java_intarray, data[0]), REG_ITMP2);
1465                         /* implicit null-pointer check */
1466                         M_LWZX(d, s1, REG_ITMP2);
1467                         emit_store_dst(jd, iptr, d);
1468                         break;
1469
1470                 case ICMD_LALOAD:     /* ..., arrayref, index  ==> ..., value         */
1471
1472                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1473                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1474                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1475                         /* implicit null-pointer check */
1476                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1477                         M_SLL_IMM(s2, 3, REG_ITMP2);
1478                         M_IADD(s1, REG_ITMP2, REG_ITMP2);
1479                         M_LLD_INTERN(d, REG_ITMP2, OFFSET(java_longarray, data[0]));
1480                         emit_store_dst(jd, iptr, d);
1481                         break;
1482
1483                 case ICMD_FALOAD:     /* ..., arrayref, index  ==> ..., value         */
1484
1485                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1486                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1487                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1488                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1489                         M_SLL_IMM(s2, 2, REG_ITMP2);
1490                         M_IADD_IMM(REG_ITMP2, OFFSET(java_floatarray, data[0]), REG_ITMP2);
1491                         /* implicit null-pointer check */
1492                         M_LFSX(d, s1, REG_ITMP2);
1493                         emit_store_dst(jd, iptr, d);
1494                         break;
1495
1496                 case ICMD_DALOAD:     /* ..., arrayref, index  ==> ..., value         */
1497
1498                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1499                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1500                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1501                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1502                         M_SLL_IMM(s2, 3, REG_ITMP2);
1503                         M_IADD_IMM(REG_ITMP2, OFFSET(java_doublearray, data[0]), REG_ITMP2);
1504                         /* implicit null-pointer check */
1505                         M_LFDX(d, s1, REG_ITMP2);
1506                         emit_store_dst(jd, iptr, d);
1507                         break;
1508
1509                 case ICMD_AALOAD:     /* ..., arrayref, index  ==> ..., value         */
1510
1511                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1512                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1513                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1514                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1515                         M_SLL_IMM(s2, 2, REG_ITMP2);
1516                         M_IADD_IMM(REG_ITMP2, OFFSET(java_objectarray, data[0]), REG_ITMP2);
1517                         /* implicit null-pointer check */
1518                         M_LWZX(d, s1, REG_ITMP2);
1519                         emit_store_dst(jd, iptr, d);
1520                         break;
1521
1522
1523                 case ICMD_BASTORE:    /* ..., arrayref, index, value  ==> ...         */
1524
1525                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1526                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1527                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1528                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1529                         M_IADD_IMM(s2, OFFSET(java_bytearray, data[0]), REG_ITMP2);
1530                         /* implicit null-pointer check */
1531                         M_STBX(s3, s1, REG_ITMP2);
1532                         break;
1533
1534                 case ICMD_CASTORE:    /* ..., arrayref, index, value  ==> ...         */
1535
1536                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1537                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1538                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1539                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1540                         M_SLL_IMM(s2, 1, REG_ITMP2);
1541                         M_IADD_IMM(REG_ITMP2, OFFSET(java_chararray, data[0]), REG_ITMP2);
1542                         /* implicit null-pointer check */
1543                         M_STHX(s3, s1, REG_ITMP2);
1544                         break;
1545
1546                 case ICMD_SASTORE:    /* ..., arrayref, index, value  ==> ...         */
1547
1548                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1549                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1550                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1551                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1552                         M_SLL_IMM(s2, 1, REG_ITMP2);
1553                         M_IADD_IMM(REG_ITMP2, OFFSET(java_shortarray, data[0]), REG_ITMP2);
1554                         /* implicit null-pointer check */
1555                         M_STHX(s3, s1, REG_ITMP2);
1556                         break;
1557
1558                 case ICMD_IASTORE:    /* ..., arrayref, index, value  ==> ...         */
1559
1560                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1561                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1562                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1563                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1564                         M_SLL_IMM(s2, 2, REG_ITMP2);
1565                         M_IADD_IMM(REG_ITMP2, OFFSET(java_intarray, data[0]), REG_ITMP2);
1566                         /* implicit null-pointer check */
1567                         M_STWX(s3, s1, REG_ITMP2);
1568                         break;
1569
1570                 case ICMD_LASTORE:    /* ..., arrayref, index, value  ==> ...         */
1571
1572                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1573                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1574                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1575                         s3 = emit_load_s3_high(jd, iptr, REG_ITMP3);
1576                         M_SLL_IMM(s2, 3, REG_ITMP2);
1577                         M_IADD_IMM(REG_ITMP2, OFFSET(java_longarray, data[0]), REG_ITMP2);
1578                         /* implicit null-pointer check */
1579                         M_STWX(s3, s1, REG_ITMP2);
1580                         M_IADD_IMM(REG_ITMP2, 4, REG_ITMP2);
1581                         s3 = emit_load_s3_low(jd, iptr, REG_ITMP3);
1582                         M_STWX(s3, s1, REG_ITMP2);
1583                         break;
1584
1585                 case ICMD_FASTORE:    /* ..., arrayref, index, value  ==> ...         */
1586
1587                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1588                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1589                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1590                         s3 = emit_load_s3(jd, iptr, REG_FTMP3);
1591                         M_SLL_IMM(s2, 2, REG_ITMP2);
1592                         M_IADD_IMM(REG_ITMP2, OFFSET(java_floatarray, data[0]), REG_ITMP2);
1593                         /* implicit null-pointer check */
1594                         M_STFSX(s3, s1, REG_ITMP2);
1595                         break;
1596
1597                 case ICMD_DASTORE:    /* ..., arrayref, index, value  ==> ...         */
1598
1599                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1600                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1601                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1602                         s3 = emit_load_s3(jd, iptr, REG_FTMP3);
1603                         M_SLL_IMM(s2, 3, REG_ITMP2);
1604                         M_IADD_IMM(REG_ITMP2, OFFSET(java_doublearray, data[0]), REG_ITMP2);
1605                         /* implicit null-pointer check */
1606                         M_STFDX(s3, s1, REG_ITMP2);
1607                         break;
1608
1609                 case ICMD_AASTORE:    /* ..., arrayref, index, value  ==> ...         */
1610
1611                         s1 = emit_load_s1(jd, iptr, REG_A0);
1612                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1613                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1614                         s3 = emit_load_s3(jd, iptr, REG_A1);
1615
1616                         /* XXX what if array is NULL */
1617                         disp = dseg_add_functionptr(cd, BUILTIN_canstore);
1618                         M_ALD(REG_ITMP3, REG_PV, disp);
1619                         M_MTCTR(REG_ITMP3);
1620
1621                         M_INTMOVE(s1, REG_A0);
1622                         M_INTMOVE(s3, REG_A1);
1623
1624                         M_JSR;
1625                         emit_exception_check(cd, iptr);
1626
1627                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1628                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1629                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1630                         M_SLL_IMM(s2, 2, REG_ITMP2);
1631                         M_IADD_IMM(REG_ITMP2, OFFSET(java_objectarray, data[0]), REG_ITMP2);
1632                         /* implicit null-pointer check */
1633                         M_STWX(s3, s1, REG_ITMP2);
1634                         break;
1635
1636
1637                 case ICMD_GETSTATIC:  /* ...  ==> ..., value                          */
1638
1639                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1640                                 uf        = iptr->sx.s23.s3.uf;
1641                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1642                                 disp      = dseg_add_unique_address(cd, uf);
1643
1644                                 codegen_addpatchref(cd, PATCHER_get_putstatic, uf, disp);
1645                         }
1646                         else {
1647                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1648                                 fieldtype = fi->type;
1649                                 disp      = dseg_add_address(cd, &(fi->value));
1650
1651                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class))
1652                                         codegen_addpatchref(cd, PATCHER_initialize_class,
1653                                                                                 fi->class, disp);
1654                         }
1655
1656                         M_ALD(REG_ITMP1, REG_PV, disp);
1657                         switch (fieldtype) {
1658                         case TYPE_INT:
1659                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1660                                 M_ILD_INTERN(d, REG_ITMP1, 0);
1661                                 break;
1662                         case TYPE_LNG:
1663                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1664                                 M_ILD_INTERN(GET_LOW_REG(d), REG_ITMP1, 4);/* keep this order */
1665                                 M_ILD_INTERN(GET_HIGH_REG(d), REG_ITMP1, 0);/*keep this order */
1666                                 break;
1667                         case TYPE_ADR:
1668                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1669                                 M_ALD_INTERN(d, REG_ITMP1, 0);
1670                                 break;
1671                         case TYPE_FLT:
1672                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1673                                 M_FLD_INTERN(d, REG_ITMP1, 0);
1674                                 break;
1675                         case TYPE_DBL:
1676                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1677                                 M_DLD_INTERN(d, REG_ITMP1, 0);
1678                                 break;
1679                         }
1680                         emit_store_dst(jd, iptr, d);
1681                         break;
1682
1683                 case ICMD_PUTSTATIC:  /* ..., value  ==> ...                          */
1684
1685                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1686                                 uf        = iptr->sx.s23.s3.uf;
1687                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1688                                 disp      = dseg_add_unique_address(cd, uf);
1689
1690                                 codegen_addpatchref(cd, PATCHER_get_putstatic, uf, disp);
1691                         }
1692                         else {
1693                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1694                                 fieldtype = fi->type;
1695                                 disp      = dseg_add_address(cd, &(fi->value));
1696
1697                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class))
1698                                         codegen_addpatchref(cd, PATCHER_initialize_class,
1699                                                                                 fi->class, disp);
1700                         }
1701
1702                         M_ALD(REG_ITMP1, REG_PV, disp);
1703                         switch (fieldtype) {
1704                         case TYPE_INT:
1705                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1706                                 M_IST_INTERN(s1, REG_ITMP1, 0);
1707                                 break;
1708                         case TYPE_LNG:
1709                                 s1 = emit_load_s1(jd, iptr, REG_ITMP23_PACKED);
1710                                 M_LST_INTERN(s1, REG_ITMP1, 0);
1711                                 break;
1712                         case TYPE_ADR:
1713                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1714                                 M_AST_INTERN(s1, REG_ITMP1, 0);
1715                                 break;
1716                         case TYPE_FLT:
1717                                 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1718                                 M_FST_INTERN(s1, REG_ITMP1, 0);
1719                                 break;
1720                         case TYPE_DBL:
1721                                 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1722                                 M_DST_INTERN(s1, REG_ITMP1, 0);
1723                                 break;
1724                         }
1725                         break;
1726
1727
1728                 case ICMD_GETFIELD:   /* ...  ==> ..., value                          */
1729
1730                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1731
1732                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1733                                 uf        = iptr->sx.s23.s3.uf;
1734                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1735                                 disp      = 0;
1736
1737                                 codegen_addpatchref(cd, PATCHER_get_putfield, uf, 0);
1738                         }
1739                         else {
1740                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1741                                 fieldtype = fi->type;
1742                                 disp      = fi->offset;
1743                         }
1744
1745                         /* implicit null-pointer check */
1746                         switch (fieldtype) {
1747                         case TYPE_INT:
1748                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1749                                 M_ILD(d, s1, disp);
1750                                 break;
1751                         case TYPE_LNG:
1752                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1753                                 if (GET_HIGH_REG(d) == s1) {
1754                                         M_ILD(GET_LOW_REG(d), s1, disp + 4);
1755                                         M_ILD(GET_HIGH_REG(d), s1, disp);
1756                                 }
1757                                 else {
1758                                         M_ILD(GET_HIGH_REG(d), s1, disp);
1759                                         M_ILD(GET_LOW_REG(d), s1, disp + 4);
1760                                 }
1761                                 break;
1762                         case TYPE_ADR:
1763                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1764                                 M_ALD(d, s1, disp);
1765                                 break;
1766                         case TYPE_FLT:
1767                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1768                                 M_FLD(d, s1, disp);
1769                                 break;
1770                         case TYPE_DBL:
1771                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1772                                 M_DLD(d, s1, disp);
1773                                 break;
1774                         }
1775                         emit_store_dst(jd, iptr, d);
1776                         break;
1777
1778                 case ICMD_PUTFIELD:   /* ..., value  ==> ...                          */
1779
1780                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1781
1782                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1783                                 uf        = iptr->sx.s23.s3.uf;
1784                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1785                                 disp      = 0;
1786                         }
1787                         else {
1788                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1789                                 fieldtype = fi->type;
1790                                 disp      = fi->offset;
1791                         }
1792
1793                         if (IS_INT_LNG_TYPE(fieldtype)) {
1794                                 if (IS_2_WORD_TYPE(fieldtype))
1795                                         s2 = emit_load_s2(jd, iptr, REG_ITMP23_PACKED);
1796                                 else
1797                                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1798                         }
1799                         else
1800                                 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1801
1802                         if (INSTRUCTION_IS_UNRESOLVED(iptr))
1803                                 codegen_addpatchref(cd, PATCHER_get_putfield, uf, 0);
1804
1805                         /* implicit null-pointer check */
1806                         switch (fieldtype) {
1807                         case TYPE_INT:
1808                                 M_IST(s2, s1, disp);
1809                                 break;
1810                         case TYPE_LNG:
1811                                 M_IST(GET_LOW_REG(s2), s1, disp + 4);      /* keep this order */
1812                                 M_IST(GET_HIGH_REG(s2), s1, disp);         /* keep this order */
1813                                 break;
1814                         case TYPE_ADR:
1815                                 M_AST(s2, s1, disp);
1816                                 break;
1817                         case TYPE_FLT:
1818                                 M_FST(s2, s1, disp);
1819                                 break;
1820                         case TYPE_DBL:
1821                                 M_DST(s2, s1, disp);
1822                                 break;
1823                         }
1824                         break;
1825
1826
1827                 /* branch operations **************************************************/
1828
1829                 case ICMD_ATHROW:       /* ..., objectref ==> ... (, objectref)       */
1830
1831                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1832                         M_INTMOVE(s1, REG_ITMP1_XPTR);
1833
1834 #ifdef ENABLE_VERIFIER
1835                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1836                                 unresolved_class *uc = iptr->sx.s23.s2.uc;
1837
1838                                 codegen_addpatchref(cd, PATCHER_resolve_class, uc, 0);
1839                         }
1840 #endif /* ENABLE_VERIFIER */
1841
1842                         disp = dseg_add_functionptr(cd, asm_handle_exception);
1843                         M_ALD(REG_ITMP2, REG_PV, disp);
1844                         M_MTCTR(REG_ITMP2);
1845
1846                         if (jd->isleafmethod)
1847                                 M_MFLR(REG_ITMP3);                          /* save LR        */
1848
1849                         M_BL(0);                                        /* get current PC */
1850                         M_MFLR(REG_ITMP2_XPC);
1851
1852                         if (jd->isleafmethod)
1853                                 M_MTLR(REG_ITMP3);                          /* restore LR     */
1854
1855                         M_RTS;                                          /* jump to CTR    */
1856                         ALIGNCODENOP;
1857                         break;
1858
1859                 case ICMD_GOTO:         /* ... ==> ...                                */
1860                 case ICMD_RET:          /* ... ==> ...                                */
1861
1862                         emit_br(cd, iptr->dst.block);
1863                         ALIGNCODENOP;
1864                         break;
1865
1866                 case ICMD_JSR:          /* ... ==> ...                                */
1867
1868                         emit_br(cd, iptr->sx.s23.s3.jsrtarget.block);
1869                         ALIGNCODENOP;
1870                         break;
1871
1872                 case ICMD_IFNULL:       /* ..., value ==> ...                         */
1873                 case ICMD_IFNONNULL:
1874
1875                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1876                         M_TST(s1);
1877                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFNULL, BRANCH_OPT_NONE);
1878                         break;
1879
1880                 case ICMD_IFLT:
1881                 case ICMD_IFLE:
1882                 case ICMD_IFNE:
1883                 case ICMD_IFGT:
1884                 case ICMD_IFGE:
1885                 case ICMD_IFEQ:         /* ..., value ==> ...                         */
1886
1887                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1888                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767))
1889                                 M_CMPI(s1, iptr->sx.val.i);
1890                         else {
1891                                 ICONST(REG_ITMP2, iptr->sx.val.i);
1892                                 M_CMP(s1, REG_ITMP2);
1893                         }
1894                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFEQ, BRANCH_OPT_NONE);
1895                         break;
1896
1897
1898                 case ICMD_IF_LEQ:       /* ..., value ==> ...                         */
1899
1900                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1901                         s2 = emit_load_s1_high(jd, iptr, REG_ITMP2);
1902                         if (iptr->sx.val.l == 0) {
1903                                 M_OR_TST(s1, s2, REG_ITMP3);
1904                         }
1905                         else if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
1906                                 M_XOR_IMM(s2, 0, REG_ITMP2);
1907                                 M_XOR_IMM(s1, iptr->sx.val.l & 0xffff, REG_ITMP1);
1908                                 M_OR_TST(REG_ITMP1, REG_ITMP2, REG_ITMP3);
1909                         }
1910                         else {
1911                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1912                                 M_XOR(s1, REG_ITMP3, REG_ITMP1);
1913                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1914                                 M_XOR(s2, REG_ITMP3, REG_ITMP2);
1915                                 M_OR_TST(REG_ITMP1, REG_ITMP2, REG_ITMP3);
1916                         }
1917                         emit_beq(cd, iptr->dst.block);
1918                         break;
1919
1920                 case ICMD_IF_LLT:       /* ..., value ==> ...                         */
1921
1922                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1923                         s2 = emit_load_s1_high(jd, iptr, REG_ITMP2);
1924                         if (iptr->sx.val.l == 0) {
1925                                 /* if high word is less than zero, the whole long is too */
1926                                 M_CMPI(s2, 0);
1927                                 emit_blt(cd, iptr->dst.block);
1928                         }
1929                         else if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
1930                                 M_CMPI(s2, 0);
1931                                 emit_blt(cd, iptr->dst.block);
1932                                 emit_label_bgt(cd, BRANCH_LABEL_1);
1933                                 M_CMPUI(s1, iptr->sx.val.l & 0xffff);
1934                                 emit_blt(cd, iptr->dst.block);
1935                                 emit_label(cd, BRANCH_LABEL_1);
1936                         }
1937                         else {
1938                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1939                                 M_CMP(s2, REG_ITMP3);
1940                                 emit_blt(cd, iptr->dst.block);
1941                                 emit_label_bgt(cd, BRANCH_LABEL_1);
1942                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1943                                 M_CMPU(s1, REG_ITMP3);
1944                                 emit_blt(cd, iptr->dst.block);
1945                                 emit_label(cd, BRANCH_LABEL_1);
1946                         }
1947                         break;
1948
1949                 case ICMD_IF_LLE:       /* ..., value ==> ...                         */
1950
1951                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1952                         s2 = emit_load_s1_high(jd, iptr, REG_ITMP2);
1953 /*                      if (iptr->sx.val.l == 0) { */
1954 /*                              M_OR(s1, s2, REG_ITMP3); */
1955 /*                              M_CMPI(REG_ITMP3, 0); */
1956
1957 /*                      } else  */
1958                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
1959                                 M_CMPI(s2, 0);
1960                                 emit_blt(cd, iptr->dst.block);
1961                                 emit_label_bgt(cd, BRANCH_LABEL_1);
1962                                 M_CMPUI(s1, iptr->sx.val.l & 0xffff);
1963                         }
1964                         else {
1965                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1966                                 M_CMP(s2, REG_ITMP3);
1967                                 emit_blt(cd, iptr->dst.block);
1968                                 emit_label_bgt(cd, BRANCH_LABEL_1);
1969                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1970                                 M_CMPU(s1, REG_ITMP3);
1971                         }
1972                         emit_ble(cd, iptr->dst.block);
1973                         emit_label(cd, BRANCH_LABEL_1);
1974                         break;
1975
1976                 case ICMD_IF_LNE:       /* ..., value ==> ...                         */
1977
1978                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1979                         s2 = emit_load_s1_high(jd, iptr, REG_ITMP2);
1980                         if (iptr->sx.val.l == 0) {
1981                                 M_OR_TST(s1, s2, REG_ITMP3);
1982                         }
1983                         else if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
1984                                 M_XOR_IMM(s2, 0, REG_ITMP2);
1985                                 M_XOR_IMM(s1, iptr->sx.val.l & 0xffff, REG_ITMP1);
1986                                 M_OR_TST(REG_ITMP1, REG_ITMP2, REG_ITMP3);
1987                         }
1988                         else {
1989                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1990                                 M_XOR(s1, REG_ITMP3, REG_ITMP1);
1991                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1992                                 M_XOR(s2, REG_ITMP3, REG_ITMP2);
1993                                 M_OR_TST(REG_ITMP1, REG_ITMP2, REG_ITMP3);
1994                         }
1995                         emit_bne(cd, iptr->dst.block);
1996                         break;
1997
1998                 case ICMD_IF_LGT:       /* ..., value ==> ...                         */
1999
2000                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2001                         s2 = emit_load_s1_high(jd, iptr, REG_ITMP2);
2002 /*                      if (iptr->sx.val.l == 0) { */
2003 /*                              M_OR(s1, s2, REG_ITMP3); */
2004 /*                              M_CMPI(REG_ITMP3, 0); */
2005
2006 /*                      } else  */
2007                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
2008                                 M_CMPI(s2, 0);
2009                                 emit_bgt(cd, iptr->dst.block);
2010                                 emit_label_blt(cd, BRANCH_LABEL_1);
2011                                 M_CMPUI(s1, iptr->sx.val.l & 0xffff);
2012                         }
2013                         else {
2014                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
2015                                 M_CMP(s2, REG_ITMP3);
2016                                 emit_bgt(cd, iptr->dst.block);
2017                                 emit_label_blt(cd, BRANCH_LABEL_1);
2018                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
2019                                 M_CMPU(s1, REG_ITMP3);
2020                         }
2021                         emit_bgt(cd, iptr->dst.block);
2022                         emit_label(cd, BRANCH_LABEL_1);
2023                         break;
2024
2025                 case ICMD_IF_LGE:       /* ..., value ==> ...                         */
2026
2027                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2028                         s2 = emit_load_s1_high(jd, iptr, REG_ITMP2);
2029                         if (iptr->sx.val.l == 0) {
2030                                 /* if high word is greater equal zero, the whole long is too */
2031                                 M_CMPI(s2, 0);
2032                                 emit_bge(cd, iptr->dst.block);
2033                         }
2034                         else if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
2035                                 M_CMPI(s2, 0);
2036                                 emit_bgt(cd, iptr->dst.block);
2037                                 emit_label_blt(cd, BRANCH_LABEL_1);
2038                                 M_CMPUI(s1, iptr->sx.val.l & 0xffff);
2039                                 emit_bge(cd, iptr->dst.block);
2040                                 emit_label(cd, BRANCH_LABEL_1);
2041                         }
2042                         else {
2043                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
2044                                 M_CMP(s2, REG_ITMP3);
2045                                 emit_bgt(cd, iptr->dst.block);
2046                                 emit_label_blt(cd, BRANCH_LABEL_1);
2047                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
2048                                 M_CMPU(s1, REG_ITMP3);
2049                                 emit_bge(cd, iptr->dst.block);
2050                                 emit_label(cd, BRANCH_LABEL_1);
2051                         }
2052                         break;
2053
2054                 case ICMD_IF_ICMPEQ:    /* ..., value, value ==> ...                  */
2055                 case ICMD_IF_ICMPNE:
2056                 case ICMD_IF_ICMPLT:
2057                 case ICMD_IF_ICMPGT:
2058                 case ICMD_IF_ICMPLE:
2059                 case ICMD_IF_ICMPGE:
2060
2061                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2062                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2063                         M_CMP(s1, s2);
2064                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IF_ICMPEQ, BRANCH_OPT_NONE);
2065                         break;
2066
2067                 case ICMD_IF_ACMPEQ:    /* op1 = target JavaVM pc                     */
2068                 case ICMD_IF_ACMPNE:
2069
2070                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2071                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2072                         M_CMP(s1, s2);
2073                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IF_ACMPEQ, BRANCH_OPT_NONE);
2074                         break;
2075
2076                 case ICMD_IF_LCMPEQ:    /* ..., value, value ==> ...                  */
2077
2078                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
2079                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
2080                         M_CMP(s1, s2);
2081                         emit_label_bne(cd, BRANCH_LABEL_1);
2082                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2083                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
2084                         M_CMP(s1, s2);
2085                         emit_beq(cd, iptr->dst.block);
2086                         emit_label(cd, BRANCH_LABEL_1);
2087                         break;
2088
2089                 case ICMD_IF_LCMPNE:    /* ..., value, value ==> ...                  */
2090
2091                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
2092                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
2093                         M_CMP(s1, s2);
2094                         emit_bne(cd, iptr->dst.block);
2095                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2096                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
2097                         M_CMP(s1, s2);
2098                         emit_bne(cd, iptr->dst.block);
2099                         break;
2100
2101                 case ICMD_IF_LCMPLT:    /* ..., value, value ==> ...                  */
2102
2103                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
2104                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
2105                         M_CMP(s1, s2);
2106                         emit_blt(cd, iptr->dst.block);
2107                         emit_label_bgt(cd, BRANCH_LABEL_1);
2108                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2109                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
2110                         M_CMPU(s1, s2);
2111                         emit_blt(cd, iptr->dst.block);
2112                         emit_label(cd, BRANCH_LABEL_1);
2113                         break;
2114
2115                 case ICMD_IF_LCMPGT:    /* ..., value, value ==> ...                  */
2116
2117                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
2118                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
2119                         M_CMP(s1, s2);
2120                         emit_bgt(cd, iptr->dst.block);
2121                         emit_label_blt(cd, BRANCH_LABEL_1);
2122                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2123                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
2124                         M_CMPU(s1, s2);
2125                         emit_bgt(cd, iptr->dst.block);
2126                         emit_label(cd, BRANCH_LABEL_1);
2127                         break;
2128
2129                 case ICMD_IF_LCMPLE:    /* ..., value, value ==> ...                  */
2130
2131                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
2132                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
2133                         M_CMP(s1, s2);
2134                         emit_blt(cd, iptr->dst.block);
2135                         emit_label_bgt(cd, BRANCH_LABEL_1);
2136                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2137                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
2138                         M_CMPU(s1, s2);
2139                         emit_ble(cd, iptr->dst.block);
2140                         emit_label(cd, BRANCH_LABEL_1);
2141                         break;
2142
2143                 case ICMD_IF_LCMPGE:    /* ..., value, value ==> ...                  */
2144
2145                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
2146                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
2147                         M_CMP(s1, s2);
2148                         emit_bgt(cd, iptr->dst.block);
2149                         emit_label_blt(cd, BRANCH_LABEL_1);
2150                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2151                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
2152                         M_CMPU(s1, s2);
2153                         emit_bge(cd, iptr->dst.block);
2154                         emit_label(cd, BRANCH_LABEL_1);
2155                         break;
2156
2157                 case ICMD_IRETURN:      /* ..., retvalue ==> ...                      */
2158
2159                         REPLACEMENT_POINT_RETURN(cd, iptr);
2160                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2161                         M_INTMOVE(s1, REG_RESULT);
2162                         goto nowperformreturn;
2163
2164                 case ICMD_ARETURN:      /* ..., retvalue ==> ...                      */
2165
2166                         REPLACEMENT_POINT_RETURN(cd, iptr);
2167                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2168                         M_INTMOVE(s1, REG_RESULT);
2169
2170 #ifdef ENABLE_VERIFIER
2171                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2172                                 unresolved_class *uc = iptr->sx.s23.s2.uc;
2173
2174                                 codegen_addpatchref(cd, PATCHER_resolve_class, uc, 0);
2175                         }
2176 #endif /* ENABLE_VERIFIER */
2177                         goto nowperformreturn;
2178
2179                 case ICMD_LRETURN:      /* ..., retvalue ==> ...                      */
2180
2181                         REPLACEMENT_POINT_RETURN(cd, iptr);
2182                         s1 = emit_load_s1(jd, iptr, REG_RESULT_PACKED);
2183                         M_LNGMOVE(s1, REG_RESULT_PACKED);
2184                         goto nowperformreturn;
2185
2186                 case ICMD_FRETURN:      /* ..., retvalue ==> ...                      */
2187                 case ICMD_DRETURN:
2188
2189                         REPLACEMENT_POINT_RETURN(cd, iptr);
2190                         s1 = emit_load_s1(jd, iptr, REG_FRESULT);
2191                         M_FLTMOVE(s1, REG_FRESULT);
2192                         goto nowperformreturn;
2193
2194                 case ICMD_RETURN:      /* ...  ==> ...                                */
2195
2196                         REPLACEMENT_POINT_RETURN(cd, iptr);
2197
2198 nowperformreturn:
2199                         {
2200                         s4 i, p;
2201
2202                         p = cd->stackframesize;
2203
2204                         /* call trace function */
2205
2206                         emit_verbosecall_exit(jd);
2207
2208 #if defined(ENABLE_THREADS)
2209                         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
2210                                 disp = dseg_add_functionptr(cd, LOCK_monitor_exit);
2211                                 M_ALD(REG_ITMP3, REG_PV, disp);
2212                                 M_MTCTR(REG_ITMP3);
2213
2214                                 /* we need to save the proper return value */
2215
2216                                 switch (iptr->opc) {
2217                                 case ICMD_LRETURN:
2218                                         M_IST(REG_RESULT2, REG_SP, rd->memuse * 4 + 8);
2219                                         /* fall through */
2220                                 case ICMD_IRETURN:
2221                                 case ICMD_ARETURN:
2222                                         M_IST(REG_RESULT , REG_SP, rd->memuse * 4 + 4);
2223                                         break;
2224                                 case ICMD_FRETURN:
2225                                         M_FST(REG_FRESULT, REG_SP, rd->memuse * 4 + 4);
2226                                         break;
2227                                 case ICMD_DRETURN:
2228                                         M_DST(REG_FRESULT, REG_SP, rd->memuse * 4 + 4);
2229                                         break;
2230                                 }
2231
2232                                 M_ALD(REG_A0, REG_SP, rd->memuse * 4);
2233                                 M_JSR;
2234
2235                                 /* and now restore the proper return value */
2236
2237                                 switch (iptr->opc) {
2238                                 case ICMD_LRETURN:
2239                                         M_ILD(REG_RESULT2, REG_SP, rd->memuse * 4 + 8);
2240                                         /* fall through */
2241                                 case ICMD_IRETURN:
2242                                 case ICMD_ARETURN:
2243                                         M_ILD(REG_RESULT , REG_SP, rd->memuse * 4 + 4);
2244                                         break;
2245                                 case ICMD_FRETURN:
2246                                         M_FLD(REG_FRESULT, REG_SP, rd->memuse * 4 + 4);
2247                                         break;
2248                                 case ICMD_DRETURN:
2249                                         M_DLD(REG_FRESULT, REG_SP, rd->memuse * 4 + 4);
2250                                         break;
2251                                 }
2252                         }
2253 #endif
2254
2255                         /* restore return address                                         */
2256
2257                         if (!jd->isleafmethod) {
2258                                 /* ATTENTION: Don't use REG_ZERO (r0) here, as M_ALD
2259                                    may have a displacement overflow. */
2260
2261                                 M_ALD(REG_ITMP1, REG_SP, p * 4 + LA_LR_OFFSET);
2262                                 M_MTLR(REG_ITMP1);
2263                         }
2264
2265                         /* restore saved registers                                        */
2266
2267                         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
2268                                 p--; M_ILD(rd->savintregs[i], REG_SP, p * 4);
2269                         }
2270                         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
2271                                 p -= 2; M_DLD(rd->savfltregs[i], REG_SP, p * 4);
2272                         }
2273
2274                         /* deallocate stack                                               */
2275
2276                         if (cd->stackframesize)
2277                                 M_LDA(REG_SP, REG_SP, cd->stackframesize * 4);
2278
2279                         M_RET;
2280                         ALIGNCODENOP;
2281                         }
2282                         break;
2283
2284
2285                 case ICMD_TABLESWITCH:  /* ..., index ==> ...                         */
2286                         {
2287                         s4 i, l;
2288                         branch_target_t *table;
2289
2290                         table = iptr->dst.table;
2291
2292                         l = iptr->sx.s23.s2.tablelow;
2293                         i = iptr->sx.s23.s3.tablehigh;
2294
2295                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2296                         if (l == 0)
2297                                 M_INTMOVE(s1, REG_ITMP1);
2298                         else if (l <= 32768)
2299                                 M_LDA(REG_ITMP1, s1, -l);
2300                         else {
2301                                 ICONST(REG_ITMP2, l);
2302                                 M_ISUB(s1, REG_ITMP2, REG_ITMP1);
2303                         }
2304
2305                         i = i - l + 1;
2306
2307                         /* range check */
2308
2309                         M_CMPUI(REG_ITMP1, i - 1);
2310                         emit_bgt(cd, table[0].block);
2311
2312                         /* build jump table top down and use address of lowest entry */
2313
2314                         table += i;
2315
2316                         while (--i >= 0) {
2317                                 dseg_add_target(cd, table->block);
2318                                 --table;
2319                         }
2320
2321                         /* length of dataseg after last dseg_add_target is used by load */
2322
2323                         M_SLL_IMM(REG_ITMP1, 2, REG_ITMP1);
2324                         M_IADD(REG_ITMP1, REG_PV, REG_ITMP2);
2325                         M_ALD(REG_ITMP2, REG_ITMP2, -(cd->dseglen));
2326                         M_MTCTR(REG_ITMP2);
2327                         M_RTS;
2328                         ALIGNCODENOP;
2329                         }
2330                         break;
2331
2332
2333                 case ICMD_LOOKUPSWITCH: /* ..., key ==> ...                           */
2334                         {
2335                         s4 i;
2336                         lookup_target_t *lookup;
2337
2338                         lookup = iptr->dst.lookup;
2339
2340                         i = iptr->sx.s23.s2.lookupcount;
2341
2342                         MCODECHECK((i<<2)+8);
2343                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2344
2345                         while (--i >= 0) {
2346                                 if ((lookup->value >= -32768) && (lookup->value <= 32767)) {
2347                                         M_CMPI(s1, lookup->value);
2348                                 }
2349                                 else {
2350                                         disp = dseg_add_s4(cd, lookup->value);
2351                                         M_ILD(REG_ITMP2, REG_PV, disp);
2352                                         M_CMP(s1, REG_ITMP2);
2353                                 }
2354                                 emit_beq(cd, lookup->target.block);
2355                                 lookup++;
2356                         }
2357
2358                         emit_br(cd, iptr->sx.s23.s3.lookupdefault.block);
2359                         ALIGNCODENOP;
2360                         break;
2361                         }
2362
2363
2364                 case ICMD_BUILTIN:      /* ..., [arg1, [arg2 ...]] ==> ...            */
2365
2366                         bte = iptr->sx.s23.s3.bte;
2367                         md  = bte->md;
2368                         goto gen_method;
2369
2370                 case ICMD_INVOKESTATIC: /* ..., [arg1, [arg2 ...]] ==> ...            */
2371
2372                 case ICMD_INVOKESPECIAL:/* ..., objectref, [arg1, [arg2 ...]] ==> ... */
2373                 case ICMD_INVOKEVIRTUAL:/* op1 = arg count, val.a = method pointer    */
2374                 case ICMD_INVOKEINTERFACE:
2375
2376                         REPLACEMENT_POINT_INVOKE(cd, iptr);
2377
2378                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2379                                 lm = NULL;
2380                                 um = iptr->sx.s23.s3.um;
2381                                 md = um->methodref->parseddesc.md;
2382                         }
2383                         else {
2384                                 lm = iptr->sx.s23.s3.fmiref->p.method;
2385                                 um = NULL;
2386                                 md = lm->parseddesc;
2387                         }
2388
2389 gen_method:
2390                         s3 = md->paramcount;
2391
2392                         MCODECHECK((s3 << 1) + 64);
2393
2394                         /* copy arguments to registers or stack location */
2395
2396                         for (s3 = s3 - 1; s3 >= 0; s3--) {
2397                                 var = VAR(iptr->sx.s23.s2.args[s3]);
2398                                 d   = md->params[s3].regoff;
2399
2400                                 /* Already Preallocated? */
2401                                 if (var->flags & PREALLOC)
2402                                         continue;
2403
2404                                 if (IS_INT_LNG_TYPE(var->type)) {
2405                                         if (!md->params[s3].inmemory) {
2406                                                 if (IS_2_WORD_TYPE(var->type)) {
2407                                                         s1 = emit_load(jd, iptr, var, d);
2408                                                         M_LNGMOVE(s1, d);
2409                                                 }
2410                                                 else {
2411                                                         s1 = emit_load(jd, iptr, var, d);
2412                                                         M_INTMOVE(s1, d);
2413                                                 }
2414                                         }
2415                                         else {
2416                                                 if (IS_2_WORD_TYPE(var->type)) {
2417                                                         s1 = emit_load(jd, iptr, var, REG_ITMP12_PACKED);
2418                                                         M_LST(s1, REG_SP, d * 4);
2419                                                 }
2420                                                 else {
2421                                                         s1 = emit_load(jd, iptr, var, REG_ITMP1);
2422                                                         M_IST(s1, REG_SP, d * 4);
2423                                                 }
2424                                         }
2425                                 }
2426                                 else {
2427                                         if (!md->params[s3].inmemory) {
2428                                                 s1 = emit_load(jd, iptr, var, d);
2429                                                 M_FLTMOVE(s1, d);
2430                                         }
2431                                         else {
2432                                                 s1 = emit_load(jd, iptr, var, REG_FTMP1);
2433                                                 if (IS_2_WORD_TYPE(var->type))
2434                                                         M_DST(s1, REG_SP, d * 4);
2435                                                 else
2436                                                         M_FST(s1, REG_SP, d * 4);
2437                                         }
2438                                 }
2439                         }
2440
2441                         switch (iptr->opc) {
2442                         case ICMD_BUILTIN:
2443                                 disp = dseg_add_functionptr(cd, bte->fp);
2444
2445                                 M_ALD(REG_PV, REG_PV, disp);  /* pointer to built-in-function */
2446
2447                                 /* generate the actual call */
2448
2449                                 M_MTCTR(REG_PV);
2450                                 M_JSR;
2451                                 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2452                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2453                                 M_MFLR(REG_ITMP1);
2454                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2455
2456                                 emit_exception_check(cd, iptr);
2457                                 break;
2458
2459                         case ICMD_INVOKESPECIAL:
2460                                 emit_nullpointer_check(cd, iptr, REG_A0);
2461                                 /* fall-through */
2462
2463                         case ICMD_INVOKESTATIC:
2464                                 if (lm == NULL) {
2465                                         disp = dseg_add_unique_address(cd, um);
2466
2467                                         codegen_addpatchref(cd, PATCHER_invokestatic_special,
2468                                                                                 um, disp);
2469                                 }
2470                                 else
2471                                         disp = dseg_add_address(cd, lm->stubroutine);
2472
2473                                 M_ALD(REG_PV, REG_PV, disp);
2474
2475                                 /* generate the actual call */
2476
2477                                 M_MTCTR(REG_PV);
2478                                 M_JSR;
2479                                 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2480                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2481                                 M_MFLR(REG_ITMP1);
2482                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2483                                 break;
2484
2485                         case ICMD_INVOKEVIRTUAL:
2486                                 if (lm == NULL) {
2487                                         codegen_addpatchref(cd, PATCHER_invokevirtual, um, 0);
2488
2489                                         s1 = 0;
2490                                 }
2491                                 else {
2492                                         s1 = OFFSET(vftbl_t, table[0]) +
2493                                                 sizeof(methodptr) * lm->vftblindex;
2494                                 }
2495
2496                                 /* implicit null-pointer check */
2497                                 M_ALD(REG_METHODPTR, REG_A0, OFFSET(java_objectheader, vftbl));
2498                                 M_ALD(REG_PV, REG_METHODPTR, s1);
2499
2500                                 /* generate the actual call */
2501
2502                                 M_MTCTR(REG_PV);
2503                                 M_JSR;
2504                                 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2505                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2506                                 M_MFLR(REG_ITMP1);
2507                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2508                                 break;
2509
2510                         case ICMD_INVOKEINTERFACE:
2511                                 if (lm == NULL) {
2512                                         codegen_addpatchref(cd, PATCHER_invokeinterface, um, 0);
2513
2514                                         s1 = 0;
2515                                         s2 = 0;
2516                                 }
2517                                 else {
2518                                         s1 = OFFSET(vftbl_t, interfacetable[0]) -
2519                                                 sizeof(methodptr*) * lm->class->index;
2520
2521                                         s2 = sizeof(methodptr) * (lm - lm->class->methods);
2522                                 }
2523
2524                                 /* implicit null-pointer check */
2525                                 M_ALD(REG_METHODPTR, REG_A0, OFFSET(java_objectheader, vftbl));
2526                                 M_ALD(REG_METHODPTR, REG_METHODPTR, s1);
2527                                 M_ALD(REG_PV, REG_METHODPTR, s2);
2528
2529                                 /* generate the actual call */
2530
2531                                 M_MTCTR(REG_PV);
2532                                 M_JSR;
2533                                 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2534                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2535                                 M_MFLR(REG_ITMP1);
2536                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2537                                 break;
2538                         }
2539
2540                         /* store return value */
2541
2542                         d = md->returntype.type;
2543
2544                         if (d != TYPE_VOID) {
2545                                 if (IS_INT_LNG_TYPE(d)) {
2546                                         if (IS_2_WORD_TYPE(d)) {
2547                                                 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
2548                                                 M_LNGMOVE(REG_RESULT_PACKED, s1);
2549                                         }
2550                                         else {
2551                                                 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2552                                                 M_INTMOVE(REG_RESULT, s1);
2553                                         }
2554                                 }
2555                                 else {
2556                                         s1 = codegen_reg_of_dst(jd, iptr, REG_FRESULT);
2557                                         M_FLTMOVE(REG_FRESULT, s1);
2558                                 }
2559                                 emit_store_dst(jd, iptr, s1);
2560                         }
2561                         break;
2562
2563
2564                 case ICMD_CHECKCAST:  /* ..., objectref ==> ..., objectref            */
2565                                       /* val.a: (classinfo*) superclass               */
2566
2567                         /*  superclass is an interface:
2568                          *
2569                          *  OK if ((sub == NULL) ||
2570                          *         (sub->vftbl->interfacetablelength > super->index) &&
2571                          *         (sub->vftbl->interfacetable[-super->index] != NULL));
2572                          *
2573                          *  superclass is a class:
2574                          *
2575                          *  OK if ((sub == NULL) || (0
2576                          *         <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2577                          *         super->vftbl->diffvall));
2578                          */
2579
2580                         if (!(iptr->flags.bits & INS_FLAG_ARRAY)) {
2581                                 /* object type cast-check */
2582
2583                                 classinfo *super;
2584                                 s4         superindex;
2585
2586                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2587                                         super      = NULL;
2588                                         superindex = 0;
2589                                 }
2590                                 else {
2591                                         super      = iptr->sx.s23.s3.c.cls;
2592                                         superindex = super->index;
2593                                 }
2594
2595 #if defined(ENABLE_THREADS)
2596                                 codegen_threadcritrestart(cd, cd->mcodeptr - cd->mcodebase);
2597 #endif
2598
2599                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2600
2601                                 /* if class is not resolved, check which code to call */
2602
2603                                 if (super == NULL) {
2604                                         M_TST(s1);
2605                                         emit_label_beq(cd, BRANCH_LABEL_1);
2606
2607                                         disp = dseg_add_unique_s4(cd, 0);         /* super->flags */
2608
2609                                         codegen_addpatchref(cd,
2610                                                                                 PATCHER_resolve_classref_to_flags,
2611                                                                                 iptr->sx.s23.s3.c.ref,
2612                                                                                 disp);
2613
2614                                         M_ILD(REG_ITMP2, REG_PV, disp);
2615                                         M_AND_IMM(REG_ITMP2, ACC_INTERFACE, REG_ITMP2);
2616                                         emit_label_beq(cd, BRANCH_LABEL_2);
2617                                 }
2618
2619                                 /* interface checkcast code */
2620
2621                                 if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2622                                         if (super == NULL) {
2623                                                 codegen_addpatchref(cd,
2624                                                                                         PATCHER_checkcast_interface,
2625                                                                                         iptr->sx.s23.s3.c.ref,
2626                                                                                         0);
2627                                         }
2628                                         else {
2629                                                 M_TST(s1);
2630                                                 emit_label_beq(cd, BRANCH_LABEL_3);
2631                                         }
2632
2633                                         M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2634                                         M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, interfacetablelength));
2635                                         M_LDATST(REG_ITMP3, REG_ITMP3, -superindex);
2636                                         emit_classcast_check(cd, iptr, BRANCH_LE, REG_ITMP3, s1);
2637
2638                                         M_ALD(REG_ITMP3, REG_ITMP2,
2639                                                   OFFSET(vftbl_t, interfacetable[0]) -
2640                                                   superindex * sizeof(methodptr*));
2641                                         M_TST(REG_ITMP3);
2642                                         emit_classcast_check(cd, iptr, BRANCH_EQ, REG_ITMP3, s1);
2643
2644                                         if (super == NULL)
2645                                                 emit_label_br(cd, BRANCH_LABEL_4);
2646                                         else
2647                                                 emit_label(cd, BRANCH_LABEL_3);
2648                                 }
2649
2650                                 /* class checkcast code */
2651
2652                                 if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2653                                         if (super == NULL) {
2654                                                 emit_label(cd, BRANCH_LABEL_2);
2655
2656                                                 disp = dseg_add_unique_address(cd, NULL);
2657
2658                                                 codegen_addpatchref(cd, PATCHER_resolve_classref_to_vftbl,
2659                                                                                         iptr->sx.s23.s3.c.ref,
2660                                                                                         disp);
2661                                         }
2662                                         else {
2663                                                 disp = dseg_add_address(cd, super->vftbl);
2664
2665                                                 M_TST(s1);
2666                                                 emit_label_beq(cd, BRANCH_LABEL_5);
2667                                         }
2668
2669                                         M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2670 #if defined(ENABLE_THREADS)
2671                                         codegen_threadcritstart(cd, cd->mcodeptr - cd->mcodebase);
2672 #endif
2673                                         M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2674                                         M_ALD(REG_ITMP2, REG_PV, disp);
2675                                         if (s1 != REG_ITMP1) {
2676                                                 M_ILD(REG_ITMP1, REG_ITMP2, OFFSET(vftbl_t, baseval));
2677                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2678 #if defined(ENABLE_THREADS)
2679                                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2680 #endif
2681                                                 M_ISUB(REG_ITMP3, REG_ITMP1, REG_ITMP3);
2682                                         }
2683                                         else {
2684                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, baseval));
2685                                                 M_ISUB(REG_ITMP3, REG_ITMP2, REG_ITMP3);
2686                                                 M_ALD(REG_ITMP2, REG_PV, disp);
2687                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2688 #if defined(ENABLE_THREADS)
2689                                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2690 #endif
2691                                         }
2692                                         M_CMPU(REG_ITMP3, REG_ITMP2);
2693                                         emit_classcast_check(cd, iptr, BRANCH_GT, REG_ITMP3, s1);
2694
2695                                         if (super != NULL)
2696                                                 emit_label(cd, BRANCH_LABEL_5);
2697                                 }
2698
2699                                 if (super == NULL) {
2700                                         emit_label(cd, BRANCH_LABEL_1);
2701                                         emit_label(cd, BRANCH_LABEL_4);
2702                                 }
2703
2704                                 d = codegen_reg_of_dst(jd, iptr, s1);
2705                         }
2706                         else {
2707                                 /* array type cast-check */
2708
2709                                 s1 = emit_load_s1(jd, iptr, REG_A0);
2710                                 M_INTMOVE(s1, REG_A0);
2711
2712                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2713                                         disp = dseg_add_unique_address(cd, NULL);
2714
2715                                         codegen_addpatchref(cd, PATCHER_resolve_classref_to_classinfo,
2716                                                                                 iptr->sx.s23.s3.c.ref,
2717                                                                                 disp);
2718                                 }
2719                                 else
2720                                         disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2721
2722                                 M_ALD(REG_A1, REG_PV, disp);
2723                                 disp = dseg_add_functionptr(cd, BUILTIN_arraycheckcast);
2724                                 M_ALD(REG_ITMP2, REG_PV, disp);
2725                                 M_MTCTR(REG_ITMP2);
2726                                 M_JSR;
2727                                 M_TST(REG_RESULT);
2728                                 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_RESULT, s1);
2729
2730                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2731                                 d = codegen_reg_of_dst(jd, iptr, s1);
2732                         }
2733                         M_INTMOVE(s1, d);
2734                         emit_store_dst(jd, iptr, d);
2735                         break;
2736
2737                 case ICMD_INSTANCEOF: /* ..., objectref ==> ..., intresult            */
2738                                       /* val.a: (classinfo*) superclass               */
2739
2740                         /*  superclass is an interface:
2741                          *
2742                          *  return (sub != NULL) &&
2743                          *         (sub->vftbl->interfacetablelength > super->index) &&
2744                          *         (sub->vftbl->interfacetable[-super->index] != NULL);
2745                          *
2746                          *  superclass is a class:
2747                          *
2748                          *  return ((sub != NULL) && (0
2749                          *          <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2750                          *          super->vftbl->diffvall));
2751                          */
2752
2753                         {
2754                         classinfo *super;
2755                         s4         superindex;
2756
2757                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2758                                 super      = NULL;
2759                                 superindex = 0;
2760                         }
2761                         else {
2762                                 super      = iptr->sx.s23.s3.c.cls;
2763                                 superindex = super->index;
2764                         }
2765
2766 #if defined(ENABLE_THREADS)
2767                         codegen_threadcritrestart(cd, cd->mcodeptr - cd->mcodebase);
2768 #endif
2769                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2770
2771                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
2772                         if (s1 == d) {
2773                                 M_MOV(s1, REG_ITMP1);
2774                                 s1 = REG_ITMP1;
2775                         }
2776
2777                         M_CLR(d);
2778
2779                         /* if class is not resolved, check which code to call */
2780
2781                         if (super == NULL) {
2782                                 M_TST(s1);
2783                                 emit_label_beq(cd, BRANCH_LABEL_1);
2784
2785                                 disp = dseg_add_unique_s4(cd, 0);             /* super->flags */
2786
2787                                 codegen_addpatchref(cd, PATCHER_resolve_classref_to_flags,
2788                                                                         iptr->sx.s23.s3.c.ref, disp);
2789
2790                                 M_ILD(REG_ITMP3, REG_PV, disp);
2791                                 M_AND_IMM(REG_ITMP3, ACC_INTERFACE, REG_ITMP3);
2792                                 emit_label_beq(cd, BRANCH_LABEL_2);
2793                         }
2794
2795                         /* interface instanceof code */
2796
2797                         if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2798                                 if (super == NULL) {
2799                                         codegen_addpatchref(cd,
2800                                                                                 PATCHER_instanceof_interface,
2801                                                                                 iptr->sx.s23.s3.c.ref, 0);
2802                                 }
2803                                 else {
2804                                         M_TST(s1);
2805                                         emit_label_beq(cd, BRANCH_LABEL_3);
2806                                 }
2807
2808                                 M_ALD(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
2809                                 M_ILD(REG_ITMP3, REG_ITMP1, OFFSET(vftbl_t, interfacetablelength));
2810                                 M_LDATST(REG_ITMP3, REG_ITMP3, -superindex);
2811                                 M_BLE(4);
2812                                 M_ALD(REG_ITMP1, REG_ITMP1,
2813                                           OFFSET(vftbl_t, interfacetable[0]) -
2814                                           superindex * sizeof(methodptr*));
2815                                 M_TST(REG_ITMP1);
2816                                 M_BEQ(1);
2817                                 M_IADD_IMM(REG_ZERO, 1, d);
2818
2819                                 if (super == NULL)
2820                                         emit_label_br(cd, BRANCH_LABEL_4);
2821                                 else
2822                                         emit_label(cd, BRANCH_LABEL_3);
2823                         }
2824
2825                         /* class instanceof code */
2826
2827                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2828                                 if (super == NULL) {
2829                                         emit_label(cd, BRANCH_LABEL_2);
2830
2831                                         disp = dseg_add_unique_address(cd, NULL);
2832
2833                                         codegen_addpatchref(cd, PATCHER_resolve_classref_to_vftbl,
2834                                                                                 iptr->sx.s23.s3.c.ref,
2835                                                                                 disp);
2836                                 }
2837                                 else {
2838                                         disp = dseg_add_address(cd, super->vftbl);
2839
2840                                         M_TST(s1);
2841                                         emit_label_beq(cd, BRANCH_LABEL_5);
2842                                 }
2843
2844                                 M_ALD(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
2845                                 M_ALD(REG_ITMP2, REG_PV, disp);
2846 #if defined(ENABLE_THREADS)
2847                                 codegen_threadcritstart(cd, cd->mcodeptr - cd->mcodebase);
2848 #endif
2849                                 M_ILD(REG_ITMP1, REG_ITMP1, OFFSET(vftbl_t, baseval));
2850                                 M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2851                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2852 #if defined(ENABLE_THREADS)
2853                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2854 #endif
2855                                 M_ISUB(REG_ITMP1, REG_ITMP3, REG_ITMP1);
2856                                 M_CMPU(REG_ITMP1, REG_ITMP2);
2857                                 M_CLR(d);
2858                                 M_BGT(1);
2859                                 M_IADD_IMM(REG_ZERO, 1, d);
2860
2861                                 if (super != NULL)
2862                                         emit_label(cd, BRANCH_LABEL_5);
2863                         }
2864
2865                         if (super == NULL) {
2866                                 emit_label(cd, BRANCH_LABEL_1);
2867                                 emit_label(cd, BRANCH_LABEL_4);
2868                         }
2869
2870                         emit_store_dst(jd, iptr, d);
2871                         }
2872                         break;
2873
2874                 case ICMD_MULTIANEWARRAY:/* ..., cnt1, [cnt2, ...] ==> ..., arrayref  */
2875
2876                         /* check for negative sizes and copy sizes to stack if necessary  */
2877
2878                         MCODECHECK((iptr->s1.argcount << 1) + 64);
2879
2880                         for (s1 = iptr->s1.argcount; --s1 >= 0;) {
2881                                 var = VAR(iptr->sx.s23.s2.args[s1]);
2882
2883                                 /* copy SAVEDVAR sizes to stack */
2884
2885                                 /* Already Preallocated? */
2886                                 if (!(var->flags & PREALLOC)) {
2887                                         s2 = emit_load(jd, iptr, var, REG_ITMP1);
2888 #if defined(__DARWIN__)
2889                                         M_IST(s2, REG_SP, LA_SIZE + (s1 + INT_ARG_CNT) * 4);
2890 #else
2891                                         M_IST(s2, REG_SP, LA_SIZE + (s1 + 3) * 4);
2892 #endif
2893                                 }
2894                         }
2895
2896                         /* a0 = dimension count */
2897
2898                         ICONST(REG_A0, iptr->s1.argcount);
2899
2900                         /* is patcher function set? */
2901
2902                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2903                                 disp = dseg_add_unique_address(cd, NULL);
2904
2905                                 codegen_addpatchref(cd, PATCHER_resolve_classref_to_classinfo,
2906                                                                         iptr->sx.s23.s3.c.ref, disp);
2907                         }
2908                         else
2909                                 disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2910
2911                         /* a1 = arraydescriptor */
2912
2913                         M_ALD(REG_A1, REG_PV, disp);
2914
2915                         /* a2 = pointer to dimensions = stack pointer */
2916
2917 #if defined(__DARWIN__)
2918                         M_LDA(REG_A2, REG_SP, LA_SIZE + INT_ARG_CNT * 4);
2919 #else
2920                         M_LDA(REG_A2, REG_SP, LA_SIZE + 3 * 4);
2921 #endif
2922
2923                         disp = dseg_add_functionptr(cd, BUILTIN_multianewarray);
2924                         M_ALD(REG_ITMP3, REG_PV, disp);
2925                         M_MTCTR(REG_ITMP3);
2926                         M_JSR;
2927
2928                         /* check for exception before result assignment */
2929
2930                         emit_exception_check(cd, iptr);
2931
2932                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2933                         M_INTMOVE(REG_RESULT, d);
2934                         emit_store_dst(jd, iptr, d);
2935                         break;
2936
2937                 default:
2938                         exceptions_throw_internalerror("Unknown ICMD %d during code generation",
2939                                                                                    iptr->opc);
2940                         return false;
2941         } /* switch */
2942
2943         } /* for instruction */
2944
2945         } /* if (bptr -> flags >= BBREACHED) */
2946         } /* for basic block */
2947
2948         dseg_createlinenumbertable(cd);
2949
2950         /* generate stubs */
2951
2952         emit_patcher_stubs(jd);
2953         REPLACEMENT_EMIT_STUBS(jd);
2954
2955         /* everything's ok */
2956
2957         return true;
2958 }
2959
2960
2961 /* codegen_emit_stub_compiler **************************************************
2962
2963    Emits a stub routine which calls the compiler.
2964
2965 *******************************************************************************/
2966
2967 void codegen_emit_stub_compiler(jitdata *jd)
2968 {
2969         methodinfo  *m;
2970         codegendata *cd;
2971
2972         /* get required compiler data */
2973
2974         m  = jd->m;
2975         cd = jd->cd;
2976
2977         /* code for the stub */
2978
2979         M_ALD_INTERN(REG_ITMP1, REG_PV, -2 * SIZEOF_VOID_P);
2980         M_ALD_INTERN(REG_PV, REG_PV, -3 * SIZEOF_VOID_P);
2981         M_MTCTR(REG_PV);
2982         M_RTS;
2983 }
2984
2985
2986 /* codegen_emit_stub_native ****************************************************
2987
2988    Emits a stub routine which calls a native method.
2989
2990 *******************************************************************************/
2991
2992 void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f)
2993 {
2994         methodinfo  *m;
2995         codeinfo    *code;
2996         codegendata *cd;
2997         methoddesc  *md;
2998         s4           nativeparams;
2999         s4           i, j;                 /* count variables                    */
3000         s4           t;
3001         s4           s1, s2, disp;
3002         s4           funcdisp;
3003
3004         /* get required compiler data */
3005
3006         m    = jd->m;
3007         code = jd->code;
3008         cd   = jd->cd;
3009
3010         /* set some variables */
3011
3012         md = m->parseddesc;
3013         nativeparams = (m->flags & ACC_STATIC) ? 2 : 1;
3014
3015         /* calculate stackframe size */
3016
3017         cd->stackframesize =
3018                 sizeof(stackframeinfo) / SIZEOF_VOID_P +
3019                 sizeof(localref_table) / SIZEOF_VOID_P +
3020                 4 +                             /* 4 stackframeinfo arguments (darwin)*/
3021                 nmd->paramcount * 2 +           /* assume all arguments are doubles   */
3022                 nmd->memuse;
3023
3024         /* keep stack 16-byte aligned */
3025
3026         cd->stackframesize = (cd->stackframesize + 3) & ~3;
3027
3028         /* create method header */
3029
3030         (void) dseg_add_unique_address(cd, code);              /* CodeinfoPointer */
3031         (void) dseg_add_unique_s4(cd, cd->stackframesize * 4); /* FrameSize       */
3032         (void) dseg_add_unique_s4(cd, 0);                      /* IsSync          */
3033         (void) dseg_add_unique_s4(cd, 0);                      /* IsLeaf          */
3034         (void) dseg_add_unique_s4(cd, 0);                      /* IntSave         */
3035         (void) dseg_add_unique_s4(cd, 0);                      /* FltSave         */
3036         (void) dseg_addlinenumbertablesize(cd);
3037         (void) dseg_add_unique_s4(cd, 0);                      /* ExTableSize     */
3038
3039         /* generate code */
3040
3041         M_MFLR(REG_ZERO);
3042         M_AST_INTERN(REG_ZERO, REG_SP, LA_LR_OFFSET);
3043         M_STWU(REG_SP, REG_SP, -(cd->stackframesize * 4));
3044
3045         /* get function address (this must happen before the stackframeinfo) */
3046
3047         funcdisp = dseg_add_functionptr(cd, f);
3048
3049 #if !defined(WITH_STATIC_CLASSPATH)
3050         if (f == NULL)
3051                 codegen_addpatchref(cd, PATCHER_resolve_native_function, m, funcdisp);
3052 #endif
3053
3054         /* emit trace code */
3055
3056         emit_verbosecall_enter(jd);
3057
3058 #if defined(ENABLE_GC_CACAO)
3059         /* Save callee saved integer registers in stackframeinfo (GC may
3060            need to recover them during a collection). */
3061
3062         disp = cd->stackframesize * 4 - sizeof(stackframeinfo) +
3063                 OFFSET(stackframeinfo, intregs);
3064
3065         for (i = 0; i < INT_SAV_CNT; i++)
3066                 M_AST(abi_registers_integer_saved[i], REG_SP, disp + i * 4);
3067 #endif
3068
3069         /* save integer and float argument registers */
3070
3071         j = 0;
3072
3073         for (i = 0; i < md->paramcount; i++) {
3074                 t = md->paramtypes[i].type;
3075
3076                 if (IS_INT_LNG_TYPE(t)) {
3077                         if (!md->params[i].inmemory) {
3078                                 s1 = md->params[i].regoff;
3079
3080                                 if (IS_2_WORD_TYPE(t)) {
3081                                         M_IST(GET_HIGH_REG(s1), REG_SP, LA_SIZE + 4 * 4 + j * 4);
3082                                         j++;
3083                                         M_IST(GET_LOW_REG(s1), REG_SP, LA_SIZE + 4 * 4 + j * 4);
3084                                 }
3085                                 else
3086                                         M_IST(s1, REG_SP, LA_SIZE + 4 * 4 + j * 4);
3087
3088                                 j++;
3089                         }
3090                 }
3091         }
3092
3093         for (i = 0; i < md->paramcount; i++) {
3094                 if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
3095                         if (!md->params[i].inmemory) {
3096                                 s1 = md->params[i].regoff;
3097                                 M_DST(s1, REG_SP, LA_SIZE + 4 * 4 + j * 8);
3098                                 j++;
3099                         }
3100                 }
3101         }
3102
3103         /* create native stack info */
3104
3105         M_AADD_IMM(REG_SP, cd->stackframesize * 4, REG_A0);
3106         M_MOV(REG_PV, REG_A1);
3107         M_AADD_IMM(REG_SP, cd->stackframesize * 4, REG_A2);
3108         M_ALD(REG_A3, REG_SP, cd->stackframesize * 4 + LA_LR_OFFSET);
3109         disp = dseg_add_functionptr(cd, codegen_start_native_call);
3110         M_ALD(REG_ITMP1, REG_PV, disp);
3111         M_MTCTR(REG_ITMP1);
3112         M_JSR;
3113
3114         /* restore integer and float argument registers */
3115
3116         j = 0;
3117
3118         for (i = 0; i < md->paramcount; i++) {
3119                 t = md->paramtypes[i].type;
3120
3121                 if (IS_INT_LNG_TYPE(t)) {
3122                         if (!md->params[i].inmemory) {
3123                                 s1 = md->params[i].regoff;
3124
3125                                 if (IS_2_WORD_TYPE(t)) {
3126                                         M_ILD(GET_HIGH_REG(s1), REG_SP, LA_SIZE + 4 * 4 + j * 4);
3127                                         j++;
3128                                         M_ILD(GET_LOW_REG(s1), REG_SP, LA_SIZE + 4 * 4 + j * 4);
3129                                 }
3130                                 else
3131                                         M_ILD(s1, REG_SP, LA_SIZE + 4 * 4 + j * 4);
3132
3133                                 j++;
3134                         }
3135                 }
3136         }
3137
3138         for (i = 0; i < md->paramcount; i++) {
3139                 if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
3140                         if (!md->params[i].inmemory) {
3141                                 s1 = md->params[i].regoff;
3142                                 M_DLD(s1, REG_SP, LA_SIZE + 4 * 4 + j * 8);
3143                                 j++;
3144                         }
3145                 }
3146         }
3147
3148         /* copy or spill arguments to new locations */
3149
3150         for (i = md->paramcount - 1, j = i + nativeparams; i >= 0; i--, j--) {
3151                 t = md->paramtypes[i].type;
3152
3153                 if (IS_INT_LNG_TYPE(t)) {
3154                         if (!md->params[i].inmemory) {
3155                                 s1 = md->params[i].regoff;
3156                                 s2 = nmd->params[j].regoff;
3157
3158                                 if (!nmd->params[j].inmemory) {
3159                                         if (IS_2_WORD_TYPE(t))
3160                                                 M_LNGMOVE(s1, s2);
3161                                         else
3162                                                 M_INTMOVE(s1, s2);
3163                                 }
3164                                 else {
3165                                         if (IS_2_WORD_TYPE(t))
3166                                                 M_LST(s1, REG_SP, s2 * 4);
3167                                         else
3168                                                 M_IST(s1, REG_SP, s2 * 4);
3169                                 }
3170                         }
3171                         else {
3172                                 s1 = md->params[i].regoff + cd->stackframesize;
3173                                 s2 = nmd->params[j].regoff;
3174
3175                                 M_ILD(REG_ITMP1, REG_SP, s1 * 4);
3176                                 if (IS_2_WORD_TYPE(t))
3177                                         M_ILD(REG_ITMP2, REG_SP, s1 * 4 + 4);
3178
3179                                 M_IST(REG_ITMP1, REG_SP, s2 * 4);
3180                                 if (IS_2_WORD_TYPE(t))
3181                                         M_IST(REG_ITMP2, REG_SP, s2 * 4 + 4);
3182                         }
3183                 }
3184                 else {
3185                         /* We only copy spilled float arguments, as the float
3186                            argument registers keep unchanged. */
3187
3188                         if (md->params[i].inmemory) {
3189                                 s1 = md->params[i].regoff + cd->stackframesize;
3190                                 s2 = nmd->params[j].regoff;
3191
3192                                 if (IS_2_WORD_TYPE(t)) {
3193                                         M_DLD(REG_FTMP1, REG_SP, s1 * 4);
3194                                         M_DST(REG_FTMP1, REG_SP, s2 * 4);
3195                                 }
3196                                 else {
3197                                         M_FLD(REG_FTMP1, REG_SP, s1 * 4);
3198                                         M_FST(REG_FTMP1, REG_SP, s2 * 4);
3199                                 }
3200                         }
3201                 }
3202         }
3203
3204         /* put class into second argument register */
3205
3206         if (m->flags & ACC_STATIC) {
3207                 disp = dseg_add_address(cd, m->class);
3208                 M_ALD(REG_A1, REG_PV, disp);
3209         }
3210
3211         /* put env into first argument register */
3212
3213         disp = dseg_add_address(cd, _Jv_env);
3214         M_ALD(REG_A0, REG_PV, disp);
3215
3216         /* generate the actual native call */
3217
3218         M_ALD(REG_ITMP3, REG_PV, funcdisp);
3219         M_MTCTR(REG_ITMP3);
3220         M_JSR;
3221
3222         /* print call trace */
3223
3224         emit_verbosecall_exit(jd);
3225
3226         /* save return value */
3227
3228         switch (md->returntype.type) {
3229         case TYPE_INT:
3230         case TYPE_ADR:
3231                 M_IST(REG_RESULT, REG_SP, LA_SIZE + 1 * 4);
3232                 break;
3233         case TYPE_LNG:
3234                 M_LST(REG_RESULT_PACKED, REG_SP, LA_SIZE + 1 * 4);
3235                 break;
3236         case TYPE_FLT:
3237                 M_FST(REG_FRESULT, REG_SP, LA_SIZE + 1 * 4);
3238                 break;
3239         case TYPE_DBL:
3240                 M_DST(REG_FRESULT, REG_SP, LA_SIZE + 1 * 4);
3241                 break;
3242         case TYPE_VOID:
3243                 break;
3244         }
3245
3246         /* remove native stackframe info */
3247
3248         M_AADD_IMM(REG_SP, cd->stackframesize * 4, REG_A0);
3249         disp = dseg_add_functionptr(cd, codegen_finish_native_call);
3250         M_ALD(REG_ITMP1, REG_PV, disp);
3251         M_MTCTR(REG_ITMP1);
3252         M_JSR;
3253         M_MOV(REG_RESULT, REG_ITMP1_XPTR);
3254
3255         /* restore return value */
3256
3257         switch (md->returntype.type) {
3258         case TYPE_INT:
3259         case TYPE_ADR:
3260                 M_ILD(REG_RESULT, REG_SP, LA_SIZE + 1 * 4);
3261                 break;
3262         case TYPE_LNG:
3263                 M_LLD(REG_RESULT_PACKED, REG_SP, LA_SIZE + 1 * 4);
3264                 break;
3265         case TYPE_FLT:
3266                 M_FLD(REG_FRESULT, REG_SP, LA_SIZE + 1 * 4);
3267                 break;
3268         case TYPE_DBL:
3269                 M_DLD(REG_FRESULT, REG_SP, LA_SIZE + 1 * 4);
3270                 break;
3271         case TYPE_VOID:
3272                 break;
3273         }
3274
3275 #if defined(ENABLE_GC_CACAO)
3276         /* Restore callee saved integer registers from stackframeinfo (GC
3277            might have modified them during a collection). */
3278
3279         disp = cd->stackframesize * 4 - sizeof(stackframeinfo) +
3280                 OFFSET(stackframeinfo, intregs);
3281
3282         for (i = 0; i < INT_SAV_CNT; i++)
3283                 M_ALD(abi_registers_integer_saved[i], REG_SP, disp + i * 4);
3284 #endif
3285
3286         M_ALD(REG_ITMP2_XPC, REG_SP, cd->stackframesize * 4 + LA_LR_OFFSET);
3287         M_MTLR(REG_ITMP2_XPC);
3288         M_LDA(REG_SP, REG_SP, cd->stackframesize * 4); /* remove stackframe       */
3289
3290         /* check for exception */
3291
3292         M_TST(REG_ITMP1_XPTR);
3293         M_BNE(1);                           /* if no exception then return        */
3294
3295         M_RET;
3296
3297         /* handle exception */
3298
3299         M_IADD_IMM(REG_ITMP2_XPC, -4, REG_ITMP2_XPC);  /* exception address       */
3300
3301         disp = dseg_add_functionptr(cd, asm_handle_nat_exception);
3302         M_ALD(REG_ITMP3, REG_PV, disp);
3303         M_MTCTR(REG_ITMP3);
3304         M_RTS;
3305
3306         /* generate patcher stubs */
3307
3308         emit_patcher_stubs(jd);
3309 }
3310
3311
3312 /*
3313  * These are local overrides for various environment variables in Emacs.
3314  * Please do not remove this and leave it at the end of the file, where
3315  * Emacs will automagically detect them.
3316  * ---------------------------------------------------------------------
3317  * Local variables:
3318  * mode: c
3319  * indent-tabs-mode: t
3320  * c-basic-offset: 4
3321  * tab-width: 4
3322  * End:
3323  * vim:noexpandtab:sw=4:ts=4:
3324  */