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 7596 2007-03-28 21:05:53Z twisti $
  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-asm.h"
  57 #include "vm/jit/asmpart.h"
  58 #include "vm/jit/codegen-common.h"
  59 #include "vm/jit/dseg.h"
  60 #include "vm/jit/emit-common.h"
  61 #include "vm/jit/jit.h"
  62 #include "vm/jit/md.h"
  63 #include "vm/jit/methodheader.h"
  64 #include "vm/jit/parse.h"
  65 #include "vm/jit/patcher.h"
  66 #include "vm/jit/reg.h"
  67 #include "vm/jit/replace.h"
  68 #include "vm/jit/stacktrace.h"
  69
  70 #if defined(ENABLE_LSRA)
  71 # include "vm/jit/allocator/lsra.h"
  72 #endif
  73
  74 #include "vmcore/loader.h"
  75 #include "vmcore/options.h"
  76
  77
  78 /* codegen *********************************************************************
  79
  80    Generates machine code.
  81
  82 *******************************************************************************/
  83
  84 bool codegen_emit(jitdata *jd)
  85 {
  86         methodinfo         *m;
  87         codeinfo           *code;
  88         codegendata        *cd;
  89         registerdata       *rd;
  90         s4                  len, s1, s2, s3, d, disp;
  91         ptrint              a;
  92         varinfo            *var;
  93         basicblock         *bptr;
  94         instruction        *iptr;
  95         exception_entry    *ex;
  96         u2                  currentline;
  97         methodinfo         *lm;             /* local methodinfo for ICMD_INVOKE*  */
  98         unresolved_method  *um;
  99         builtintable_entry *bte;
 100         methoddesc         *md;
 101         fieldinfo          *fi;
 102         unresolved_field   *uf;
 103         s4                  fieldtype;
 104         s4                 varindex;
 105
 106         /* get required compiler data */
 107
 108         m    = jd->m;
 109         code = jd->code;
 110         cd   = jd->cd;
 111         rd   = jd->rd;
 112
 113         /* prevent compiler warnings */
 114
 115         d         = 0;
 116         fieldtype = 0;
 117         lm        = NULL;
 118         um        = NULL;
 119         uf        = NULL;
 120         bte       = NULL;
 121
 122         {
 123         s4 i, p, t, l;
 124         s4 savedregs_num;
 125
 126         savedregs_num = 0;
 127
 128         /* space to save used callee saved registers */
 129
 130         savedregs_num += (INT_SAV_CNT - rd->savintreguse);
 131         savedregs_num += (FLT_SAV_CNT - rd->savfltreguse) * 2;
 132
 133         cd->stackframesize = rd->memuse + savedregs_num;
 134
 135 #if defined(ENABLE_THREADS)
 136         /* Space to save argument of monitor_enter and Return Values to
 137            survive monitor_exit. The stack position for the argument can
 138            not be shared with place to save the return register on PPC,
 139            since both values reside in R3. */
 140
 141         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
 142                 /* reserve 2 slots for long/double return values for monitorexit */
 143
 144                 if (IS_2_WORD_TYPE(m->parseddesc->returntype.type))
 145                         cd->stackframesize += 3;
 146                 else
 147                         cd->stackframesize += 2;
 148         }
 149
 150 #endif
 151
 152         /* create method header */
 153
 154         /* align stack to 16-bytes */
 155
 156         if (!jd->isleafmethod || JITDATA_HAS_FLAG_VERBOSECALL(jd))
 157                 cd->stackframesize = (cd->stackframesize + 3) & ~3;
 158
 159         else if (jd->isleafmethod && (cd->stackframesize == LA_SIZE_IN_POINTERS))
 160                 cd->stackframesize = 0;
 161
 162         (void) dseg_add_unique_address(cd, code);              /* CodeinfoPointer */
 163         (void) dseg_add_unique_s4(cd, cd->stackframesize * 4); /* FrameSize       */
 164
 165 #if defined(ENABLE_THREADS)
 166         /* IsSync contains the offset relative to the stack pointer for the
 167            argument of monitor_exit used in the exception handler. Since the
 168            offset could be zero and give a wrong meaning of the flag it is
 169            offset by one.
 170         */
 171
 172         if (checksync && (m->flags & ACC_SYNCHRONIZED))
 173                 (void) dseg_add_unique_s4(cd, (rd->memuse + 1) * 4);/* IsSync         */
 174         else
 175 #endif
 176                 (void) dseg_add_unique_s4(cd, 0);                  /* IsSync          */
 177
 178         (void) dseg_add_unique_s4(cd, jd->isleafmethod);       /* IsLeaf          */
 179         (void) dseg_add_unique_s4(cd, INT_SAV_CNT - rd->savintreguse); /* IntSave */
 180         (void) dseg_add_unique_s4(cd, FLT_SAV_CNT - rd->savfltreguse); /* FltSave */
 181
 182         dseg_addlinenumbertablesize(cd);
 183
 184         (void) dseg_add_unique_s4(cd, jd->exceptiontablelength); /* ExTableSize   */
 185
 186         /* create exception table */
 187
 188         for (ex = jd->exceptiontable; ex != NULL; ex = ex->down) {
 189                 dseg_add_target(cd, ex->start);
 190                 dseg_add_target(cd, ex->end);
 191                 dseg_add_target(cd, ex->handler);
 192                 (void) dseg_add_unique_address(cd, ex->catchtype.any);
 193         }
 194
 195 #if defined(ENABLE_PROFILING)
 196         /* generate method profiling code */
 197
 198         if (JITDATA_HAS_FLAG_INSTRUMENT(jd)) {
 199                 /* count frequency */
 200
 201                 M_ALD(REG_ITMP1, REG_PV, CodeinfoPointer);
 202                 M_ALD(REG_ITMP2, REG_ITMP1, OFFSET(codeinfo, frequency));
 203                 M_IADD_IMM(REG_ITMP2, 1, REG_ITMP2);
 204                 M_AST(REG_ITMP2, REG_ITMP1, OFFSET(codeinfo, frequency));
 205
 206 /*              PROFILE_CYCLE_START; */
 207         }
 208 #endif
 209
 210         /* create stack frame (if necessary) */
 211
 212         if (!jd->isleafmethod) {
 213                 M_MFLR(REG_ZERO);
 214                 M_AST(REG_ZERO, REG_SP, LA_LR_OFFSET);
 215         }
 216
 217         if (cd->stackframesize)
 218                 M_STWU(REG_SP, REG_SP, -(cd->stackframesize * 4));
 219
 220         /* save return address and used callee saved registers */
 221
 222         p = cd->stackframesize;
 223         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
 224                 p--; M_IST(rd->savintregs[i], REG_SP, p * 4);
 225         }
 226         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
 227                 p -= 2; M_DST(rd->savfltregs[i], REG_SP, p * 4);
 228         }
 229
 230         /* take arguments out of register or stack frame */
 231
 232         md = m->parseddesc;
 233
 234         for (p = 0, l = 0; p < md->paramcount; p++) {
 235                 t = md->paramtypes[p].type;
 236                 varindex = jd->local_map[l * 5 + t];
 237
 238                 l++;
 239                 if (IS_2_WORD_TYPE(t))    /* increment local counter for 2 word types */
 240                         l++;
 241
 242                 if (varindex == UNUSED)
 243                         continue;
 244
 245                 var = VAR(varindex);
 246
 247                 s1 = md->params[p].regoff;
 248                 if (IS_INT_LNG_TYPE(t)) {                    /* integer args          */
 249                         if (IS_2_WORD_TYPE(t))
 250                                 s2 = PACK_REGS(rd->argintregs[GET_LOW_REG(s1)],
 251                                                            rd->argintregs[GET_HIGH_REG(s1)]);
 252                         else
 253                                 s2 = rd->argintregs[s1];
 254                         if (!md->params[p].inmemory) {           /* register arguments    */
 255                                 if (!IS_INMEMORY(var->flags)) {      /* reg arg -> register   */
 256                                         if (IS_2_WORD_TYPE(t))
 257                                                 M_LNGMOVE(s2, var->vv.regoff);
 258                                         else
 259                                                 M_INTMOVE(s2, var->vv.regoff);
 260
 261                                 } else {                             /* reg arg -> spilled    */
 262                                         if (IS_2_WORD_TYPE(t))
 263                                                 M_LST(s2, REG_SP, var->vv.regoff * 4);
 264                                         else
 265                                                 M_IST(s2, REG_SP, var->vv.regoff * 4);
 266                                 }
 267
 268                         } else {                                 /* stack arguments       */
 269                                 if (!IS_INMEMORY(var->flags)) {      /* stack arg -> register */
 270                                         if (IS_2_WORD_TYPE(t))
 271                                                 M_LLD(var->vv.regoff, REG_SP, (cd->stackframesize + s1) * 4);
 272                                         else
 273                                                 M_ILD(var->vv.regoff, REG_SP, (cd->stackframesize + s1) * 4);
 274
 275                                 } else {                             /* stack arg -> spilled  */
 276 #if 1
 277                                         M_ILD(REG_ITMP1, REG_SP, (cd->stackframesize + s1) * 4);
 278                                         M_IST(REG_ITMP1, REG_SP, var->vv.regoff * 4);
 279                                         if (IS_2_WORD_TYPE(t)) {
 280                                                 M_ILD(REG_ITMP1, REG_SP, (cd->stackframesize + s1) * 4 +4);
 281                                                 M_IST(REG_ITMP1, REG_SP, var->vv.regoff * 4 + 4);
 282                                         }
 283 #else
 284                                         /* Reuse Memory Position on Caller Stack */
 285                                         var->vv.regoff = cd->stackframesize + s1;
 286 #endif
 287                                 }
 288                         }
 289
 290                 } else {                                     /* floating args         */
 291                         if (!md->params[p].inmemory) {           /* register arguments    */
 292                                 s2 = rd->argfltregs[s1];
 293                                 if (!IS_INMEMORY(var->flags)) {      /* reg arg -> register   */
 294                                         M_FLTMOVE(s2, var->vv.regoff);
 295
 296                                 } else {                                         /* reg arg -> spilled    */
 297                                         if (IS_2_WORD_TYPE(t))
 298                                                 M_DST(s2, REG_SP, var->vv.regoff * 4);
 299                                         else
 300                                                 M_FST(s2, REG_SP, var->vv.regoff * 4);
 301                                 }
 302
 303                         } else {                                 /* stack arguments       */
 304                                 if (!IS_INMEMORY(var->flags)) {      /* stack-arg -> register */
 305                                         if (IS_2_WORD_TYPE(t))
 306                                                 M_DLD(var->vv.regoff, REG_SP, (cd->stackframesize + s1) * 4);
 307
 308                                         else
 309                                                 M_FLD(var->vv.regoff, REG_SP, (cd->stackframesize + s1) * 4);
 310
 311                                 } else {                             /* stack-arg -> spilled  */
 312 #if 1
 313                                         if (IS_2_WORD_TYPE(t)) {
 314                                                 M_DLD(REG_FTMP1, REG_SP, (cd->stackframesize + s1) * 4);
 315                                                 M_DST(REG_FTMP1, REG_SP, var->vv.regoff * 4);
 316                                                 var->vv.regoff = cd->stackframesize + s1;
 317
 318                                         } else {
 319                                                 M_FLD(REG_FTMP1, REG_SP, (cd->stackframesize + s1) * 4);
 320                                                 M_FST(REG_FTMP1, REG_SP, var->vv.regoff * 4);
 321                                         }
 322 #else
 323                                         /* Reuse Memory Position on Caller Stack */
 324                                         var->vv.regoff = cd->stackframesize + s1;
 325 #endif
 326                                 }
 327                         }
 328                 }
 329         } /* end for */
 330
 331 #if defined(ENABLE_THREADS)
 332         /* call monitorenter function */
 333
 334         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
 335                 /* stack offset for monitor argument */
 336
 337                 s1 = rd->memuse;
 338
 339 # if !defined(NDEBUG)
 340                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 341                         M_AADD_IMM(REG_SP, -((LA_SIZE_IN_POINTERS + ARG_CNT) * 8), REG_SP);
 342
 343                         for (p = 0; p < INT_ARG_CNT; p++)
 344                                 M_IST(rd->argintregs[p], REG_SP, LA_SIZE + p * 8);
 345
 346                         for (p = 0; p < FLT_ARG_CNT; p++)
 347                                 M_DST(rd->argfltregs[p], REG_SP, LA_SIZE + (INT_ARG_CNT + p) * 8);
 348
 349                         /* ATTENTION: We multiply here with 2, because we use * 8
 350                            above for simplicity and below * 4! */
 351
 352                         s1 += (LA_SIZE_IN_POINTERS + ARG_CNT) * 2;
 353                 }
 354 # endif
 355
 356                 p = dseg_add_functionptr(cd, LOCK_monitor_enter);
 357                 M_ALD(REG_ITMP3, REG_PV, p);
 358                 M_MTCTR(REG_ITMP3);
 359
 360                 /* get or test the lock object */
 361
 362                 if (m->flags & ACC_STATIC) {
 363                         p = dseg_add_address(cd, &m->class->object.header);
 364                         M_ALD(REG_A0, REG_PV, p);
 365                 }
 366                 else {
 367                         M_TST(REG_A0);
 368                         M_BNE(1);
 369                         M_ALD_INTERN(REG_ZERO, REG_ZERO, EXCEPTION_HARDWARE_NULLPOINTER);
 370                 }
 371
 372                 M_AST(REG_A0, REG_SP, s1 * 4);
 373                 M_JSR;
 374
 375 # if !defined(NDEBUG)
 376                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 377                         for (p = 0; p < INT_ARG_CNT; p++)
 378                                 M_ILD(rd->argintregs[p], REG_SP, LA_SIZE + p * 8);
 379
 380                         for (p = 0; p < FLT_ARG_CNT; p++)
 381                                 M_DLD(rd->argfltregs[p], REG_SP, LA_SIZE + (INT_ARG_CNT + p) * 8);
 382
 383                         M_AADD_IMM(REG_SP, (LA_SIZE_IN_POINTERS + ARG_CNT) * 8, REG_SP);
 384                 }
 385 # endif
 386         }
 387 #endif /* defined(ENABLE_THREADS) */
 388
 389         /* call trace function */
 390
 391         emit_verbosecall_enter(jd);
 392         }
 393
 394         /* end of header generation */
 395
 396         /* create replacement points */
 397
 398         REPLACEMENT_POINTS_INIT(cd, jd);
 399
 400         /* walk through all basic blocks */
 401
 402         for (bptr = jd->basicblocks; bptr != NULL; bptr = bptr->next) {
 403
 404                 bptr->mpc = (s4) (cd->mcodeptr - cd->mcodebase);
 405
 406                 if (bptr->flags >= BBREACHED) {
 407                 /* branch resolving */
 408
 409                 codegen_resolve_branchrefs(cd, bptr);
 410
 411                 /* handle replacement points */
 412
 413                 REPLACEMENT_POINT_BLOCK_START(cd, bptr);
 414
 415 #if defined(ENABLE_PROFILING)
 416                 /* generate basicblock profiling code */
 417
 418                 if (JITDATA_HAS_FLAG_INSTRUMENT(jd)) {
 419                         /* count frequency */
 420
 421                         disp = dseg_add_address(cd, code->bbfrequency);
 422                         M_ALD(REG_ITMP2, REG_PV, disp);
 423                         M_ALD(REG_ITMP3, REG_ITMP2, bptr->nr * 4);
 424                         M_IADD_IMM(REG_ITMP3, 1, REG_ITMP3);
 425                         M_AST(REG_ITMP3, REG_ITMP2, bptr->nr * 4);
 426
 427                         /* if this is an exception handler, start profiling again */
 428
 429 /*                      if (bptr->type == BBTYPE_EXH) */
 430 /*                              PROFILE_CYCLE_START; */
 431                 }
 432 #endif
 433
 434                 /* copy interface registers to their destination */
 435
 436                 len = bptr->indepth;
 437                 MCODECHECK(64+len);
 438
 439 #if defined(ENABLE_LSRA)
 440                 if (opt_lsra) {
 441                         while (src != NULL) {
 442                                 len--;
 443                                 if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 444                                         /* d = reg_of_var(m, src, REG_ITMP1); */
 445                                         if (!IS_INMEMORY(src->flags))
 446                                                 d = src->vv.regoff;
 447                                         else
 448                                                 d = REG_ITMP1;
 449                                         M_INTMOVE(REG_ITMP1, d);
 450                                         emit_store(jd, NULL, src, d);
 451                                 }
 452                                 src = src->prev;
 453                         }
 454                 } else {
 455 #endif
 456                 while (len > 0) {
 457                         len--;
 458                         var = VAR(bptr->invars[len]);
 459                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 460                                 d = codegen_reg_of_var(0, var, REG_ITMP1);
 461                                 M_INTMOVE(REG_ITMP1, d);
 462                                 emit_store(jd, NULL, var, d);
 463                         }
 464                         else {
 465                                 assert((var->flags & INOUT));
 466                         }
 467                 }
 468
 469 #if defined(ENABLE_LSRA)
 470                 }
 471 #endif
 472                 /* walk through all instructions */
 473
 474                 len = bptr->icount;
 475                 currentline = 0;
 476
 477                 for (iptr = bptr->iinstr; len > 0; len--, iptr++) {
 478                         if (iptr->line != currentline) {
 479                                 dseg_addlinenumber(cd, iptr->line);
 480                                 currentline = iptr->line;
 481                         }
 482
 483                         MCODECHECK(64);   /* an instruction usually needs < 64 words      */
 484
 485                 switch (iptr->opc) {
 486                 case ICMD_NOP:        /* ...  ==> ...                                 */
 487                 case ICMD_POP:        /* ..., value  ==> ...                          */
 488                 case ICMD_POP2:       /* ..., value, value  ==> ...                   */
 489                         break;
 490
 491                 case ICMD_INLINE_START:
 492
 493                         REPLACEMENT_POINT_INLINE_START(cd, iptr);
 494                         break;
 495
 496                 case ICMD_INLINE_BODY:
 497
 498                         REPLACEMENT_POINT_INLINE_BODY(cd, iptr);
 499                         dseg_addlinenumber_inline_start(cd, iptr);
 500                         dseg_addlinenumber(cd, iptr->line);
 501                         break;
 502
 503                 case ICMD_INLINE_END:
 504
 505                         dseg_addlinenumber_inline_end(cd, iptr);
 506                         dseg_addlinenumber(cd, iptr->line);
 507                         break;
 508
 509                 case ICMD_CHECKNULL:  /* ..., objectref  ==> ..., objectref           */
 510
 511                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 512                         emit_nullpointer_check(cd, iptr, s1);
 513                         break;
 514
 515                 /* constant operations ************************************************/
 516
 517                 case ICMD_ICONST:     /* ...  ==> ..., constant                       */
 518
 519                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 520                         ICONST(d, iptr->sx.val.i);
 521                         emit_store_dst(jd, iptr, d);
 522                         break;
 523
 524                 case ICMD_LCONST:     /* ...  ==> ..., constant                       */
 525
 526                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 527                         LCONST(d, iptr->sx.val.l);
 528                         emit_store_dst(jd, iptr, d);
 529                         break;
 530
 531                 case ICMD_FCONST:     /* ...  ==> ..., constant                       */
 532
 533                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 534                         a = dseg_add_float(cd, iptr->sx.val.f);
 535                         M_FLD(d, REG_PV, a);
 536                         emit_store_dst(jd, iptr, d);
 537                         break;
 538
 539                 case ICMD_DCONST:     /* ...  ==> ..., constant                       */
 540
 541                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 542                         a = dseg_add_double(cd, iptr->sx.val.d);
 543                         M_DLD(d, REG_PV, a);
 544                         emit_store_dst(jd, iptr, d);
 545                         break;
 546
 547                 case ICMD_ACONST:     /* ...  ==> ..., constant                       */
 548
 549                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 550
 551                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
 552                                 constant_classref *cr = iptr->sx.val.c.ref;;
 553
 554                                 disp = dseg_add_unique_address(cd, cr);
 555
 556                                 codegen_addpatchref(cd, PATCHER_resolve_classref_to_classinfo,
 557                                                                         cr, disp);
 558                         }
 559                         else
 560                                 disp = dseg_add_address(cd, iptr->sx.val.anyptr);
 561
 562                         M_ALD(d, REG_PV, disp);
 563                         emit_store_dst(jd, iptr, d);
 564                         break;
 565
 566
 567                 /* load/store/copy/move operations ************************************/
 568
 569                 case ICMD_ILOAD:      /* ...  ==> ..., content of local variable      */
 570                 case ICMD_ALOAD:      /* s1 = local variable                          */
 571                 case ICMD_LLOAD:
 572                 case ICMD_FLOAD:
 573                 case ICMD_DLOAD:
 574                 case ICMD_ISTORE:     /* ..., value  ==> ...                          */
 575                 case ICMD_LSTORE:
 576                 case ICMD_FSTORE:
 577                 case ICMD_DSTORE:
 578                 case ICMD_COPY:
 579                 case ICMD_MOVE:
 580
 581                         emit_copy(jd, iptr, VAROP(iptr->s1), VAROP(iptr->dst));
 582                         break;
 583
 584                 case ICMD_ASTORE:
 585
 586                         if (!(iptr->flags.bits & INS_FLAG_RETADDR))
 587                                 emit_copy(jd, iptr, VAROP(iptr->s1), VAROP(iptr->dst));
 588                         break;
 589
 590
 591                 /* integer operations *************************************************/
 592
 593                 case ICMD_INEG:       /* ..., value  ==> ..., - value                 */
 594
 595                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 596                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 597                         M_NEG(s1, d);
 598                         emit_store_dst(jd, iptr, d);
 599                         break;
 600
 601                 case ICMD_LNEG:       /* ..., value  ==> ..., - value                 */
 602
 603                         s1 = emit_load_s1(jd, iptr, REG_ITMP12_PACKED);
 604                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 605                         M_SUBFIC(GET_LOW_REG(s1), 0, GET_LOW_REG(d));
 606                         M_SUBFZE(GET_HIGH_REG(s1), GET_HIGH_REG(d));
 607                         emit_store_dst(jd, iptr, d);
 608                         break;
 609
 610                 case ICMD_I2L:        /* ..., value  ==> ..., value                   */
 611
 612                         s1 = emit_load_s1(jd, iptr, REG_ITMP2);
 613                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 614                         M_INTMOVE(s1, GET_LOW_REG(d));
 615                         M_SRA_IMM(GET_LOW_REG(d), 31, GET_HIGH_REG(d));
 616                         emit_store_dst(jd, iptr, d);
 617                         break;
 618
 619                 case ICMD_L2I:        /* ..., value  ==> ..., value                   */
 620
 621                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP2);
 622                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 623                         M_INTMOVE(s1, d);
 624                         emit_store_dst(jd, iptr, d);
 625                         break;
 626
 627                 case ICMD_INT2BYTE:   /* ..., value  ==> ..., value                   */
 628
 629                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 630                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 631                         M_BSEXT(s1, d);
 632                         emit_store_dst(jd, iptr, d);
 633                         break;
 634
 635                 case ICMD_INT2CHAR:   /* ..., value  ==> ..., value                   */
 636
 637                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 638                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 639                         M_CZEXT(s1, d);
 640                         emit_store_dst(jd, iptr, d);
 641                         break;
 642
 643                 case ICMD_INT2SHORT:  /* ..., value  ==> ..., value                   */
 644
 645                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 646                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 647                         M_SSEXT(s1, d);
 648                         emit_store_dst(jd, iptr, d);
 649                         break;
 650
 651
 652                 case ICMD_IADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 653
 654                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 655                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 656                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 657                         M_IADD(s1, s2, d);
 658                         emit_store_dst(jd, iptr, d);
 659                         break;
 660
 661                                       /* s1.localindex = variable, sx.val.i = constant*/
 662
 663                 case ICMD_IINC:
 664                 case ICMD_IADDCONST:
 665
 666                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 667                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 668                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767)) {
 669                                 M_IADD_IMM(s1, iptr->sx.val.i, d);
 670                         } else {
 671                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 672                                 M_IADD(s1, REG_ITMP2, d);
 673                         }
 674                         /* XXX the old code for ICMD_IINC was as follows:
 675                         {
 676                                 u4 m = iptr->sx.val.i;
 677                                 if (m & 0x8000)
 678                                         m += 65536;
 679                                 if (m & 0xffff0000)
 680                                         M_ADDIS(s1, m >> 16, d);
 681                                 if (m & 0xffff)
 682                                         M_IADD_IMM(s1, m & 0xffff, d);
 683                         }
 684                         */
 685                         emit_store_dst(jd, iptr, d);
 686                         break;
 687
 688                 case ICMD_LADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 689
 690                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 691                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
 692                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 693                         M_ADDC(s1, s2, GET_LOW_REG(d));
 694                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
 695                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP3);/* don't use REG_ITMP2*/
 696                         M_ADDE(s1, s2, GET_HIGH_REG(d));
 697                         emit_store_dst(jd, iptr, d);
 698                         break;
 699
 700                 case ICMD_LADDCONST:  /* ..., value  ==> ..., value + constant        */
 701                                       /* sx.val.l = constant                          */
 702
 703                         s3 = iptr->sx.val.l & 0xffffffff;
 704                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 705                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 706                         if ((s3 >= -32768) && (s3 <= 32767))
 707                                 M_ADDIC(s1, s3, GET_LOW_REG(d));
 708                         else {
 709                                 ICONST(REG_ITMP2, s3);
 710                                 M_ADDC(s1, REG_ITMP2, GET_LOW_REG(d));
 711                         }
 712                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
 713                         s3 = iptr->sx.val.l >> 32;
 714                         if (s3 == -1)
 715                                 M_ADDME(s1, GET_HIGH_REG(d));
 716                         else if (s3 == 0)
 717                                 M_ADDZE(s1, GET_HIGH_REG(d));
 718                         else {
 719                                 ICONST(REG_ITMP3, s3);                 /* don't use REG_ITMP2 */
 720                                 M_ADDE(s1, REG_ITMP3, GET_HIGH_REG(d));
 721                         }
 722                         emit_store_dst(jd, iptr, d);
 723                         break;
 724
 725                 case ICMD_ISUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 726
 727                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 728                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 729                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 730                         M_ISUB(s1, s2, d);
 731                         emit_store_dst(jd, iptr, d);
 732                         break;
 733
 734                 case ICMD_ISUBCONST:  /* ..., value  ==> ..., value + constant        */
 735                                       /* sx.val.i = constant                          */
 736
 737                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 738                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 739                         if ((iptr->sx.val.i >= -32767) && (iptr->sx.val.i <= 32768))
 740                                 M_IADD_IMM(s1, -iptr->sx.val.i, d);
 741                         else {
 742                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 743                                 M_ISUB(s1, REG_ITMP2, d);
 744                         }
 745                         emit_store_dst(jd, iptr, d);
 746                         break;
 747
 748                 case ICMD_LSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 749
 750                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 751                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
 752                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 753                         M_SUBC(s1, s2, GET_LOW_REG(d));
 754                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
 755                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP3);/* don't use REG_ITMP2*/
 756                         M_SUBE(s1, s2, GET_HIGH_REG(d));
 757                         emit_store_dst(jd, iptr, d);
 758                         break;
 759
 760                 case ICMD_LSUBCONST:  /* ..., value  ==> ..., value - constant        */
 761                                       /* sx.val.l = constant                          */
 762
 763                         s3 = (-iptr->sx.val.l) & 0xffffffff;
 764                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 765                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 766                         if ((s3 >= -32768) && (s3 <= 32767)) {
 767                                 M_ADDIC(s1, s3, GET_LOW_REG(d));
 768                         } else {
 769                                 ICONST(REG_ITMP2, s3);
 770                                 M_ADDC(s1, REG_ITMP2, GET_LOW_REG(d));
 771                         }
 772                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
 773                         s3 = (-iptr->sx.val.l) >> 32;
 774                         if (s3 == -1)
 775                                 M_ADDME(s1, GET_HIGH_REG(d));
 776                         else if (s3 == 0)
 777                                 M_ADDZE(s1, GET_HIGH_REG(d));
 778                         else {
 779                                 ICONST(REG_ITMP3, s3);                 /* don't use REG_ITMP2 */
 780                                 M_ADDE(s1, REG_ITMP3, GET_HIGH_REG(d));
 781                         }
 782                         emit_store_dst(jd, iptr, d);
 783                         break;
 784
 785                 case ICMD_IDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 786
 787                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 788                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 789                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 790                         emit_arithmetic_check(cd, iptr, s2);
 791                         M_LDAH(REG_ITMP3, REG_ZERO, 0x8000);
 792                         M_CMP(REG_ITMP3, s1);
 793                         M_BNE(3 + (s1 != d));
 794                         M_CMPI(s2, -1);
 795                         M_BNE(1 + (s1 != d));
 796                         M_INTMOVE(s1, d);
 797                         M_BR(1);
 798                         M_IDIV(s1, s2, d);
 799                         emit_store_dst(jd, iptr, d);
 800                         break;
 801
 802                 case ICMD_IREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 803
 804                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 805                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 806                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 807                         emit_arithmetic_check(cd, iptr, s2);
 808                         M_LDAH(REG_ITMP3, REG_ZERO, 0x8000);
 809                         M_CMP(REG_ITMP3, s1);
 810                         M_BNE(4);
 811                         M_CMPI(s2, -1);
 812                         M_BNE(2);
 813                         M_CLR(d);
 814                         M_BR(3);
 815                         M_IDIV(s1, s2, REG_ITMP3);
 816                         M_IMUL(REG_ITMP3, s2, REG_ITMP3);
 817                         M_ISUB(s1, REG_ITMP3, d);
 818                         emit_store_dst(jd, iptr, d);
 819                         break;
 820
 821                 case ICMD_LDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 822                 case ICMD_LREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 823
 824                         bte = iptr->sx.s23.s3.bte;
 825                         md  = bte->md;
 826
 827                         s2 = emit_load_s2(jd, iptr, REG_ITMP12_PACKED);
 828                         M_OR_TST(GET_HIGH_REG(s2), GET_LOW_REG(s2), REG_ITMP3);
 829                         /* XXX could be optimized */
 830                         emit_arithmetic_check(cd, iptr, REG_ITMP3);
 831
 832                         disp = dseg_add_functionptr(cd, bte->fp);
 833                         M_ALD(REG_ITMP3, REG_PV, disp);
 834                         M_MTCTR(REG_ITMP3);
 835
 836                         s3 = PACK_REGS(rd->argintregs[GET_LOW_REG(md->params[1].regoff)],
 837                                                    rd->argintregs[GET_HIGH_REG(md->params[1].regoff)]);
 838                         M_LNGMOVE(s2, s3);
 839
 840                         s1 = emit_load_s1(jd, iptr, REG_ITMP12_PACKED);
 841                         s3 = PACK_REGS(rd->argintregs[GET_LOW_REG(md->params[0].regoff)],
 842                                                    rd->argintregs[GET_HIGH_REG(md->params[0].regoff)]);
 843                         M_LNGMOVE(s1, s3);
 844
 845                         M_JSR;
 846
 847                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
 848                         M_LNGMOVE(REG_RESULT_PACKED, d);
 849                         emit_store_dst(jd, iptr, d);
 850                         break;
 851
 852                 case ICMD_IMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 853
 854                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 855                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 856                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 857                         M_IMUL(s1, s2, d);
 858                         emit_store_dst(jd, iptr, d);
 859                         break;
 860
 861                 case ICMD_IMULCONST:  /* ..., value  ==> ..., value * constant        */
 862                                       /* sx.val.i = constant                          */
 863
 864                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 865                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 866                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767))
 867                                 M_IMUL_IMM(s1, iptr->sx.val.i, d);
 868                         else {
 869                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 870                                 M_IMUL(s1, REG_ITMP3, d);
 871                         }
 872                         emit_store_dst(jd, iptr, d);
 873                         break;
 874
 875                 case ICMD_IDIVPOW2:   /* ..., value  ==> ..., value << constant       */
 876
 877                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 878                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 879                         M_SRA_IMM(s1, iptr->sx.val.i, d);
 880                         M_ADDZE(d, d);
 881                         emit_store_dst(jd, iptr, d);
 882                         break;
 883
 884                 case ICMD_ISHL:       /* ..., val1, val2  ==> ..., val1 << val2       */
 885
 886                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 887                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 888                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 889                         M_AND_IMM(s2, 0x1f, REG_ITMP3);
 890                         M_SLL(s1, REG_ITMP3, d);
 891                         emit_store_dst(jd, iptr, d);
 892                         break;
 893
 894                 case ICMD_ISHLCONST:  /* ..., value  ==> ..., value << constant       */
 895                                       /* sx.val.i = constant                          */
 896
 897                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 898                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 899                         M_SLL_IMM(s1, iptr->sx.val.i & 0x1f, d);
 900                         emit_store_dst(jd, iptr, d);
 901                         break;
 902
 903                 case ICMD_ISHR:       /* ..., val1, val2  ==> ..., val1 >> val2       */
 904
 905                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 906                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 907                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 908                         M_AND_IMM(s2, 0x1f, REG_ITMP3);
 909                         M_SRA(s1, REG_ITMP3, d);
 910                         emit_store_dst(jd, iptr, d);
 911                         break;
 912
 913                 case ICMD_ISHRCONST:  /* ..., value  ==> ..., value >> constant       */
 914                                       /* sx.val.i = constant                          */
 915
 916                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 917                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 918                         M_SRA_IMM(s1, iptr->sx.val.i & 0x1f, d);
 919                         emit_store_dst(jd, iptr, d);
 920                         break;
 921
 922                 case ICMD_IUSHR:      /* ..., val1, val2  ==> ..., val1 >>> val2      */
 923
 924                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 925                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 926                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 927                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 928                         M_SRL(s1, REG_ITMP2, d);
 929                         emit_store_dst(jd, iptr, d);
 930                         break;
 931
 932                 case ICMD_IUSHRCONST: /* ..., value  ==> ..., value >>> constant      */
 933                                       /* sx.val.i = constant                          */
 934
 935                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 936                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 937                         if (iptr->sx.val.i & 0x1f)
 938                                 M_SRL_IMM(s1, iptr->sx.val.i & 0x1f, d);
 939                         else {
 940                                 M_INTMOVE(s1, d);
 941                         }
 942                         emit_store_dst(jd, iptr, d);
 943                         break;
 944
 945                 case ICMD_IAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 946
 947                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 948                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 949                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 950                         M_AND(s1, s2, d);
 951                         emit_store_dst(jd, iptr, d);
 952                         break;
 953
 954                 case ICMD_IANDCONST:  /* ..., value  ==> ..., value & constant        */
 955                                       /* sx.val.i = constant                          */
 956
 957                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 958                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 959                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
 960                                 M_AND_IMM(s1, iptr->sx.val.i, d);
 961                         /*
 962                         else if (iptr->sx.val.i == 0xffffff) {
 963                                 M_RLWINM(s1, 0, 8, 31, d);
 964                                 }
 965                         */
 966                         else {
 967                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 968                                 M_AND(s1, REG_ITMP3, d);
 969                         }
 970                         emit_store_dst(jd, iptr, d);
 971                         break;
 972
 973                 case ICMD_LAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 974
 975                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 976                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
 977                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 978                         M_AND(s1, s2, GET_LOW_REG(d));
 979                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
 980                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP3);/* don't use REG_ITMP2*/
 981                         M_AND(s1, s2, GET_HIGH_REG(d));
 982                         emit_store_dst(jd, iptr, d);
 983                         break;
 984
 985                 case ICMD_LANDCONST:  /* ..., value  ==> ..., value & constant        */
 986                                       /* sx.val.l = constant                          */
 987
 988                         s3 = iptr->sx.val.l & 0xffffffff;
 989                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 990                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 991                         if ((s3 >= 0) && (s3 <= 65535))
 992                                 M_AND_IMM(s1, s3, GET_LOW_REG(d));
 993                         else {
 994                                 ICONST(REG_ITMP3, s3);
 995                                 M_AND(s1, REG_ITMP3, GET_LOW_REG(d));
 996                         }
 997                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
 998                         s3 = iptr->sx.val.l >> 32;
 999                         if ((s3 >= 0) && (s3 <= 65535))
1000                                 M_AND_IMM(s1, s3, GET_HIGH_REG(d));
1001                         else {
1002                                 ICONST(REG_ITMP3, s3);                 /* don't use REG_ITMP2 */
1003                                 M_AND(s1, REG_ITMP3, GET_HIGH_REG(d));
1004                         }
1005                         emit_store_dst(jd, iptr, d);
1006                         break;
1007
1008                 case ICMD_IREMPOW2:   /* ..., value  ==> ..., value % constant        */
1009                                       /* sx.val.i = constant                          */
1010
1011                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1012                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1013                         M_MOV(s1, REG_ITMP2);
1014                         M_CMPI(s1, 0);
1015                         M_BGE(1 + 2*(iptr->sx.val.i >= 32768));
1016                         if (iptr->sx.val.i >= 32768) {
1017                                 M_ADDIS(REG_ZERO, iptr->sx.val.i >> 16, REG_ITMP2);
1018                                 M_OR_IMM(REG_ITMP2, iptr->sx.val.i, REG_ITMP2);
1019                                 M_IADD(s1, REG_ITMP2, REG_ITMP2);
1020                         }
1021                         else {
1022                                 M_IADD_IMM(s1, iptr->sx.val.i, REG_ITMP2);
1023                         }
1024                         {
1025                                 int b=0, m = iptr->sx.val.i;
1026                                 while (m >>= 1)
1027                                         ++b;
1028                                 M_RLWINM(REG_ITMP2, 0, 0, 30-b, REG_ITMP2);
1029                         }
1030                         M_ISUB(s1, REG_ITMP2, d);
1031                         emit_store_dst(jd, iptr, d);
1032                         break;
1033
1034                 case ICMD_IOR:        /* ..., val1, val2  ==> ..., val1 | val2        */
1035
1036                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1037                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1038                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1039                         M_OR(s1, s2, d);
1040                         emit_store_dst(jd, iptr, d);
1041                         break;
1042
1043                 case ICMD_IORCONST:   /* ..., value  ==> ..., value | constant        */
1044                                       /* sx.val.i = constant                          */
1045
1046                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1047                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1048                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
1049                                 M_OR_IMM(s1, iptr->sx.val.i, d);
1050                         else {
1051                                 ICONST(REG_ITMP3, iptr->sx.val.i);
1052                                 M_OR(s1, REG_ITMP3, d);
1053                         }
1054                         emit_store_dst(jd, iptr, d);
1055                         break;
1056
1057                 case ICMD_LOR:       /* ..., val1, val2  ==> ..., val1 | val2        */
1058
1059                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1060                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1061                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1062                         M_OR(s1, s2, GET_LOW_REG(d));
1063                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1064                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP3);/* don't use REG_ITMP2*/
1065                         M_OR(s1, s2, GET_HIGH_REG(d));
1066                         emit_store_dst(jd, iptr, d);
1067                         break;
1068
1069                 case ICMD_LORCONST:   /* ..., value  ==> ..., value | constant        */
1070                                       /* sx.val.l = constant                          */
1071
1072                         s3 = iptr->sx.val.l & 0xffffffff;
1073                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1074                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1075                         if ((s3 >= 0) && (s3 <= 65535))
1076                                 M_OR_IMM(s1, s3, GET_LOW_REG(d));
1077                         else {
1078                                 ICONST(REG_ITMP3, s3);
1079                                 M_OR(s1, REG_ITMP3, GET_LOW_REG(d));
1080                         }
1081                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1082                         s3 = iptr->sx.val.l >> 32;
1083                         if ((s3 >= 0) && (s3 <= 65535))
1084                                 M_OR_IMM(s1, s3, GET_HIGH_REG(d));
1085                         else {
1086                                 ICONST(REG_ITMP3, s3);                 /* don't use REG_ITMP2 */
1087                                 M_OR(s1, REG_ITMP3, GET_HIGH_REG(d));
1088                         }
1089                         emit_store_dst(jd, iptr, d);
1090                         break;
1091
1092                 case ICMD_IXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
1093
1094                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1095                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1096                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1097                         M_XOR(s1, s2, d);
1098                         emit_store_dst(jd, iptr, d);
1099                         break;
1100
1101                 case ICMD_IXORCONST:  /* ..., value  ==> ..., value ^ constant        */
1102                                       /* sx.val.i = constant                          */
1103
1104                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1105                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1106                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
1107                                 M_XOR_IMM(s1, iptr->sx.val.i, d);
1108                         else {
1109                                 ICONST(REG_ITMP3, iptr->sx.val.i);
1110                                 M_XOR(s1, REG_ITMP3, d);
1111                         }
1112                         emit_store_dst(jd, iptr, d);
1113                         break;
1114
1115                 case ICMD_LXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
1116
1117                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1118                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1119                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1120                         M_XOR(s1, s2, GET_LOW_REG(d));
1121                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1122                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP3);/* don't use REG_ITMP2*/
1123                         M_XOR(s1, s2, GET_HIGH_REG(d));
1124                         emit_store_dst(jd, iptr, d);
1125                         break;
1126
1127                 case ICMD_LXORCONST:  /* ..., value  ==> ..., value ^ constant        */
1128                                       /* sx.val.l = constant                          */
1129
1130                         s3 = iptr->sx.val.l & 0xffffffff;
1131                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1132                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1133                         if ((s3 >= 0) && (s3 <= 65535))
1134                                 M_XOR_IMM(s1, s3, GET_LOW_REG(d));
1135                         else {
1136                                 ICONST(REG_ITMP3, s3);
1137                                 M_XOR(s1, REG_ITMP3, GET_LOW_REG(d));
1138                         }
1139                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1140                         s3 = iptr->sx.val.l >> 32;
1141                         if ((s3 >= 0) && (s3 <= 65535))
1142                                 M_XOR_IMM(s1, s3, GET_HIGH_REG(d));
1143                         else {
1144                                 ICONST(REG_ITMP3, s3);                 /* don't use REG_ITMP2 */
1145                                 M_XOR(s1, REG_ITMP3, GET_HIGH_REG(d));
1146                         }
1147                         emit_store_dst(jd, iptr, d);
1148                         break;
1149
1150                 case ICMD_LCMP:       /* ..., val1, val2  ==> ..., val1 cmp val2      */
1151
1152                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
1153                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1154                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1155                         vm_abort("codegen: implement ICMD_LCMP!");
1156                         emit_store_dst(jd, iptr, d);
1157                         break;
1158
1159
1160                 /* floating operations ************************************************/
1161
1162                 case ICMD_FNEG:       /* ..., value  ==> ..., - value                 */
1163
1164                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1165                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1166                         M_FMOVN(s1, d);
1167                         emit_store_dst(jd, iptr, d);
1168                         break;
1169
1170                 case ICMD_DNEG:       /* ..., value  ==> ..., - value                 */
1171
1172                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1173                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1174                         M_FMOVN(s1, d);
1175                         emit_store_dst(jd, iptr, d);
1176                         break;
1177
1178                 case ICMD_FADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
1179
1180                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1181                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1182                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1183                         M_FADD(s1, s2, d);
1184                         emit_store_dst(jd, iptr, d);
1185                         break;
1186
1187                 case ICMD_DADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
1188
1189                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1190                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1191                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1192                         M_DADD(s1, s2, d);
1193                         emit_store_dst(jd, iptr, d);
1194                         break;
1195
1196                 case ICMD_FSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
1197
1198                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1199                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1200                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1201                         M_FSUB(s1, s2, d);
1202                         emit_store_dst(jd, iptr, d);
1203                         break;
1204
1205                 case ICMD_DSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
1206
1207                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1208                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1209                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1210                         M_DSUB(s1, s2, d);
1211                         emit_store_dst(jd, iptr, d);
1212                         break;
1213
1214                 case ICMD_FMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1215
1216                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1217                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1218                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1219                         M_FMUL(s1, s2, d);
1220                         emit_store_dst(jd, iptr, d);
1221                         break;
1222
1223                 case ICMD_DMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1224
1225                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1226                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1227                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1228                         M_DMUL(s1, s2, d);
1229                         emit_store_dst(jd, iptr, d);
1230                         break;
1231
1232                 case ICMD_FDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1233
1234                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1235                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1236                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1237                         M_FDIV(s1, s2, d);
1238                         emit_store_dst(jd, iptr, d);
1239                         break;
1240
1241                 case ICMD_DDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1242
1243                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1244                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1245                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1246                         M_DDIV(s1, s2, d);
1247                         emit_store_dst(jd, iptr, d);
1248                         break;
1249
1250                 case ICMD_F2I:       /* ..., value  ==> ..., (int) value              */
1251                 case ICMD_D2I:
1252
1253                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1254                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1255                         M_CLR(d);
1256                         disp = dseg_add_float(cd, 0.0);
1257                         M_FLD(REG_FTMP2, REG_PV, disp);
1258                         M_FCMPU(s1, REG_FTMP2);
1259                         M_BNAN(4);
1260                         disp = dseg_add_unique_s4(cd, 0);
1261                         M_CVTDL_C(s1, REG_FTMP1);
1262                         M_LDA(REG_ITMP1, REG_PV, disp);
1263                         M_STFIWX(REG_FTMP1, 0, REG_ITMP1);
1264                         M_ILD(d, REG_PV, disp);
1265                         emit_store_dst(jd, iptr, d);
1266                         break;
1267
1268                 case ICMD_F2D:       /* ..., value  ==> ..., (double) value           */
1269
1270                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1271                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1272                         M_FLTMOVE(s1, d);
1273                         emit_store_dst(jd, iptr, d);
1274                         break;
1275
1276                 case ICMD_D2F:       /* ..., value  ==> ..., (double) value           */
1277
1278                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1279                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1280                         M_CVTDF(s1, d);
1281                         emit_store_dst(jd, iptr, d);
1282                         break;
1283
1284                 case ICMD_FCMPL:      /* ..., val1, val2  ==> ..., val1 fcmpg val2    */
1285                 case ICMD_DCMPL:      /* == => 0, < => 1, > => -1                     */
1286
1287
1288                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1289                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1290                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1291                         M_FCMPU(s2, s1);
1292                         M_IADD_IMM(REG_ZERO, -1, d);
1293                         M_BNAN(4);
1294                         M_BGT(3);
1295                         M_IADD_IMM(REG_ZERO, 0, d);
1296                         M_BGE(1);
1297                         M_IADD_IMM(REG_ZERO, 1, d);
1298                         emit_store_dst(jd, iptr, d);
1299                         break;
1300
1301                 case ICMD_FCMPG:      /* ..., val1, val2  ==> ..., val1 fcmpl val2    */
1302                 case ICMD_DCMPG:      /* == => 0, < => 1, > => -1                     */
1303
1304                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1305                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1306                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1307                         M_FCMPU(s1, s2);
1308                         M_IADD_IMM(REG_ZERO, 1, d);
1309                         M_BNAN(4);
1310                         M_BGT(3);
1311                         M_IADD_IMM(REG_ZERO, 0, d);
1312                         M_BGE(1);
1313                         M_IADD_IMM(REG_ZERO, -1, d);
1314                         emit_store_dst(jd, iptr, d);
1315                         break;
1316
1317                 case ICMD_IF_FCMPEQ:    /* ..., value, value ==> ...                  */
1318                 case ICMD_IF_DCMPEQ:
1319
1320                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1321                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1322                         M_FCMPU(s1, s2);
1323                         M_BNAN(1);
1324                         emit_beq(cd, iptr->dst.block);
1325                         break;
1326
1327                 case ICMD_IF_FCMPNE:    /* ..., value, value ==> ...                  */
1328                 case ICMD_IF_DCMPNE:
1329
1330                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1331                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1332                         M_FCMPU(s1, s2);
1333                         emit_bnan(cd, iptr->dst.block);
1334                         emit_bne(cd, iptr->dst.block);
1335                         break;
1336
1337
1338                 case ICMD_IF_FCMPL_LT:  /* ..., value, value ==> ...                  */
1339                 case ICMD_IF_DCMPL_LT:
1340
1341                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1342                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1343                         M_FCMPU(s1, s2);
1344                         emit_bnan(cd, iptr->dst.block);
1345                         emit_blt(cd, iptr->dst.block);
1346                         break;
1347
1348                 case ICMD_IF_FCMPL_GT:  /* ..., value, value ==> ...                  */
1349                 case ICMD_IF_DCMPL_GT:
1350
1351                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1352                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1353                         M_FCMPU(s1, s2);
1354                         M_BNAN(1);
1355                         emit_bgt(cd, iptr->dst.block);
1356                         break;
1357
1358                 case ICMD_IF_FCMPL_LE:  /* ..., value, value ==> ...                  */
1359                 case ICMD_IF_DCMPL_LE:
1360
1361                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1362                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1363                         M_FCMPU(s1, s2);
1364                         emit_bnan(cd, iptr->dst.block);
1365                         emit_ble(cd, iptr->dst.block);
1366                         break;
1367
1368                 case ICMD_IF_FCMPL_GE:  /* ..., value, value ==> ...                  */
1369                 case ICMD_IF_DCMPL_GE:
1370
1371                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1372                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1373                         M_FCMPU(s1, s2);
1374                         M_BNAN(1);
1375                         emit_bge(cd, iptr->dst.block);
1376                         break;
1377
1378                 case ICMD_IF_FCMPG_LT:  /* ..., value, value ==> ...                  */
1379                 case ICMD_IF_DCMPG_LT:
1380
1381                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1382                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1383                         M_FCMPU(s1, s2);
1384                         M_BNAN(1);
1385                         emit_blt(cd, iptr->dst.block);
1386                         break;
1387
1388                 case ICMD_IF_FCMPG_GT:  /* ..., value, value ==> ...                  */
1389                 case ICMD_IF_DCMPG_GT:
1390
1391                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1392                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1393                         M_FCMPU(s1, s2);
1394                         emit_bnan(cd, iptr->dst.block);
1395                         emit_bgt(cd, iptr->dst.block);
1396                         break;
1397
1398                 case ICMD_IF_FCMPG_LE:  /* ..., value, value ==> ...                  */
1399                 case ICMD_IF_DCMPG_LE:
1400
1401                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1402                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1403                         M_FCMPU(s1, s2);
1404                         M_BNAN(1);
1405                         emit_ble(cd, iptr->dst.block);
1406                         break;
1407
1408                 case ICMD_IF_FCMPG_GE:  /* ..., value, value ==> ...                  */
1409                 case ICMD_IF_DCMPG_GE:
1410
1411                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1412                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1413                         M_FCMPU(s1, s2);
1414                         emit_bnan(cd, iptr->dst.block);
1415                         emit_bge(cd, iptr->dst.block);
1416                         break;
1417
1418
1419                 /* memory operations **************************************************/
1420
1421                 case ICMD_ARRAYLENGTH: /* ..., arrayref  ==> ..., length              */
1422
1423                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1424                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1425                         /* implicit null-pointer check */
1426                         M_ILD(d, s1, OFFSET(java_arrayheader, size));
1427                         emit_store_dst(jd, iptr, d);
1428                         break;
1429
1430                 case ICMD_BALOAD:     /* ..., arrayref, index  ==> ..., value         */
1431
1432                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1433                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1434                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1435                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1436                         M_IADD_IMM(s2, OFFSET(java_bytearray, data[0]), REG_ITMP2);
1437                         /* implicit null-pointer check */
1438                         M_LBZX(d, s1, REG_ITMP2);
1439                         M_BSEXT(d, d);
1440                         emit_store_dst(jd, iptr, d);
1441                         break;
1442
1443                 case ICMD_CALOAD:     /* ..., arrayref, index  ==> ..., value         */
1444
1445                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1446                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1447                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1448                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1449                         M_SLL_IMM(s2, 1, REG_ITMP2);
1450                         M_IADD_IMM(REG_ITMP2, OFFSET(java_chararray, data[0]), REG_ITMP2);
1451                         /* implicit null-pointer check */
1452                         M_LHZX(d, s1, REG_ITMP2);
1453                         emit_store_dst(jd, iptr, d);
1454                         break;
1455
1456                 case ICMD_SALOAD:     /* ..., arrayref, index  ==> ..., value         */
1457
1458                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1459                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1460                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1461                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1462                         M_SLL_IMM(s2, 1, REG_ITMP2);
1463                         M_IADD_IMM(REG_ITMP2, OFFSET(java_shortarray, data[0]), REG_ITMP2);
1464                         /* implicit null-pointer check */
1465                         M_LHAX(d, s1, REG_ITMP2);
1466                         emit_store_dst(jd, iptr, d);
1467                         break;
1468
1469                 case ICMD_IALOAD:     /* ..., arrayref, index  ==> ..., value         */
1470
1471                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1472                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1473                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1474                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1475                         M_SLL_IMM(s2, 2, REG_ITMP2);
1476                         M_IADD_IMM(REG_ITMP2, OFFSET(java_intarray, data[0]), REG_ITMP2);
1477                         /* implicit null-pointer check */
1478                         M_LWZX(d, s1, REG_ITMP2);
1479                         emit_store_dst(jd, iptr, d);
1480                         break;
1481
1482                 case ICMD_LALOAD:     /* ..., arrayref, index  ==> ..., value         */
1483
1484                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1485                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1486                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1487                         /* implicit null-pointer check */
1488                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1489                         M_SLL_IMM(s2, 3, REG_ITMP2);
1490                         M_IADD(s1, REG_ITMP2, REG_ITMP2);
1491                         M_LLD_INTERN(d, REG_ITMP2, OFFSET(java_longarray, data[0]));
1492                         emit_store_dst(jd, iptr, d);
1493                         break;
1494
1495                 case ICMD_FALOAD:     /* ..., arrayref, index  ==> ..., value         */
1496
1497                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1498                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1499                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1500                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1501                         M_SLL_IMM(s2, 2, REG_ITMP2);
1502                         M_IADD_IMM(REG_ITMP2, OFFSET(java_floatarray, data[0]), REG_ITMP2);
1503                         /* implicit null-pointer check */
1504                         M_LFSX(d, s1, REG_ITMP2);
1505                         emit_store_dst(jd, iptr, d);
1506                         break;
1507
1508                 case ICMD_DALOAD:     /* ..., arrayref, index  ==> ..., value         */
1509
1510                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1511                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1512                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1513                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1514                         M_SLL_IMM(s2, 3, REG_ITMP2);
1515                         M_IADD_IMM(REG_ITMP2, OFFSET(java_doublearray, data[0]), REG_ITMP2);
1516                         /* implicit null-pointer check */
1517                         M_LFDX(d, s1, REG_ITMP2);
1518                         emit_store_dst(jd, iptr, d);
1519                         break;
1520
1521                 case ICMD_AALOAD:     /* ..., arrayref, index  ==> ..., value         */
1522
1523                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1524                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1525                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1526                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1527                         M_SLL_IMM(s2, 2, REG_ITMP2);
1528                         M_IADD_IMM(REG_ITMP2, OFFSET(java_objectarray, data[0]), REG_ITMP2);
1529                         /* implicit null-pointer check */
1530                         M_LWZX(d, s1, REG_ITMP2);
1531                         emit_store_dst(jd, iptr, d);
1532                         break;
1533
1534
1535                 case ICMD_BASTORE:    /* ..., arrayref, index, value  ==> ...         */
1536
1537                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1538                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1539                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1540                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1541                         M_IADD_IMM(s2, OFFSET(java_bytearray, data[0]), REG_ITMP2);
1542                         /* implicit null-pointer check */
1543                         M_STBX(s3, s1, REG_ITMP2);
1544                         break;
1545
1546                 case ICMD_CASTORE:    /* ..., 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_chararray, data[0]), REG_ITMP2);
1554                         /* implicit null-pointer check */
1555                         M_STHX(s3, s1, REG_ITMP2);
1556                         break;
1557
1558                 case ICMD_SASTORE:    /* ..., 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, 1, REG_ITMP2);
1565                         M_IADD_IMM(REG_ITMP2, OFFSET(java_shortarray, data[0]), REG_ITMP2);
1566                         /* implicit null-pointer check */
1567                         M_STHX(s3, s1, REG_ITMP2);
1568                         break;
1569
1570                 case ICMD_IASTORE:    /* ..., 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(jd, iptr, REG_ITMP3);
1576                         M_SLL_IMM(s2, 2, REG_ITMP2);
1577                         M_IADD_IMM(REG_ITMP2, OFFSET(java_intarray, data[0]), REG_ITMP2);
1578                         /* implicit null-pointer check */
1579                         M_STWX(s3, s1, REG_ITMP2);
1580                         break;
1581
1582                 case ICMD_LASTORE:    /* ..., arrayref, index, value  ==> ...         */
1583
1584                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1585                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1586                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1587                         s3 = emit_load_s3_high(jd, iptr, REG_ITMP3);
1588                         M_SLL_IMM(s2, 3, REG_ITMP2);
1589                         M_IADD_IMM(REG_ITMP2, OFFSET(java_longarray, data[0]), REG_ITMP2);
1590                         /* implicit null-pointer check */
1591                         M_STWX(s3, s1, REG_ITMP2);
1592                         M_IADD_IMM(REG_ITMP2, 4, REG_ITMP2);
1593                         s3 = emit_load_s3_low(jd, iptr, REG_ITMP3);
1594                         M_STWX(s3, s1, REG_ITMP2);
1595                         break;
1596
1597                 case ICMD_FASTORE:    /* ..., 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, 2, REG_ITMP2);
1604                         M_IADD_IMM(REG_ITMP2, OFFSET(java_floatarray, data[0]), REG_ITMP2);
1605                         /* implicit null-pointer check */
1606                         M_STFSX(s3, s1, REG_ITMP2);
1607                         break;
1608
1609                 case ICMD_DASTORE:    /* ..., arrayref, index, value  ==> ...         */
1610
1611                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
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_FTMP3);
1615                         M_SLL_IMM(s2, 3, REG_ITMP2);
1616                         M_IADD_IMM(REG_ITMP2, OFFSET(java_doublearray, data[0]), REG_ITMP2);
1617                         /* implicit null-pointer check */
1618                         M_STFDX(s3, s1, REG_ITMP2);
1619                         break;
1620
1621                 case ICMD_AASTORE:    /* ..., arrayref, index, value  ==> ...         */
1622
1623                         s1 = emit_load_s1(jd, iptr, REG_A0);
1624                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1625                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1626                         s3 = emit_load_s3(jd, iptr, REG_A1);
1627
1628                         /* XXX what if array is NULL */
1629                         disp = dseg_add_functionptr(cd, BUILTIN_canstore);
1630                         M_ALD(REG_ITMP3, REG_PV, disp);
1631                         M_MTCTR(REG_ITMP3);
1632
1633                         M_INTMOVE(s1, REG_A0);
1634                         M_INTMOVE(s3, REG_A1);
1635
1636                         M_JSR;
1637                         emit_exception_check(cd, iptr);
1638
1639                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1640                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1641                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1642                         M_SLL_IMM(s2, 2, REG_ITMP2);
1643                         M_IADD_IMM(REG_ITMP2, OFFSET(java_objectarray, data[0]), REG_ITMP2);
1644                         /* implicit null-pointer check */
1645                         M_STWX(s3, s1, REG_ITMP2);
1646                         break;
1647
1648
1649                 case ICMD_GETSTATIC:  /* ...  ==> ..., value                          */
1650
1651                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1652                                 uf        = iptr->sx.s23.s3.uf;
1653                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1654                                 disp      = dseg_add_unique_address(cd, uf);
1655
1656                                 codegen_addpatchref(cd, PATCHER_get_putstatic, uf, disp);
1657                         }
1658                         else {
1659                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1660                                 fieldtype = fi->type;
1661                                 disp      = dseg_add_address(cd, &(fi->value));
1662
1663                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class))
1664                                         codegen_addpatchref(cd, PATCHER_initialize_class,
1665                                                                                 fi->class, disp);
1666                         }
1667
1668                         M_ALD(REG_ITMP1, REG_PV, disp);
1669                         switch (fieldtype) {
1670                         case TYPE_INT:
1671                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1672                                 M_ILD_INTERN(d, REG_ITMP1, 0);
1673                                 break;
1674                         case TYPE_LNG:
1675                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1676                                 M_ILD_INTERN(GET_LOW_REG(d), REG_ITMP1, 4);/* keep this order */
1677                                 M_ILD_INTERN(GET_HIGH_REG(d), REG_ITMP1, 0);/*keep this order */
1678                                 break;
1679                         case TYPE_ADR:
1680                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1681                                 M_ALD_INTERN(d, REG_ITMP1, 0);
1682                                 break;
1683                         case TYPE_FLT:
1684                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1685                                 M_FLD_INTERN(d, REG_ITMP1, 0);
1686                                 break;
1687                         case TYPE_DBL:
1688                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1689                                 M_DLD_INTERN(d, REG_ITMP1, 0);
1690                                 break;
1691                         }
1692                         emit_store_dst(jd, iptr, d);
1693                         break;
1694
1695                 case ICMD_PUTSTATIC:  /* ..., value  ==> ...                          */
1696
1697                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1698                                 uf        = iptr->sx.s23.s3.uf;
1699                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1700                                 disp      = dseg_add_unique_address(cd, uf);
1701
1702                                 codegen_addpatchref(cd, PATCHER_get_putstatic, uf, disp);
1703                         }
1704                         else {
1705                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1706                                 fieldtype = fi->type;
1707                                 disp      = dseg_add_address(cd, &(fi->value));
1708
1709                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class))
1710                                         codegen_addpatchref(cd, PATCHER_initialize_class,
1711                                                                                 fi->class, disp);
1712                         }
1713
1714                         M_ALD(REG_ITMP1, REG_PV, disp);
1715                         switch (fieldtype) {
1716                         case TYPE_INT:
1717                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1718                                 M_IST_INTERN(s1, REG_ITMP1, 0);
1719                                 break;
1720                         case TYPE_LNG:
1721                                 s1 = emit_load_s1(jd, iptr, REG_ITMP23_PACKED);
1722                                 M_LST_INTERN(s1, REG_ITMP1, 0);
1723                                 break;
1724                         case TYPE_ADR:
1725                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1726                                 M_AST_INTERN(s1, REG_ITMP1, 0);
1727                                 break;
1728                         case TYPE_FLT:
1729                                 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1730                                 M_FST_INTERN(s1, REG_ITMP1, 0);
1731                                 break;
1732                         case TYPE_DBL:
1733                                 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1734                                 M_DST_INTERN(s1, REG_ITMP1, 0);
1735                                 break;
1736                         }
1737                         break;
1738
1739
1740                 case ICMD_GETFIELD:   /* ...  ==> ..., value                          */
1741
1742                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1743
1744                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1745                                 uf        = iptr->sx.s23.s3.uf;
1746                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1747                                 disp      = 0;
1748
1749                                 codegen_addpatchref(cd, PATCHER_get_putfield, uf, 0);
1750                         }
1751                         else {
1752                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1753                                 fieldtype = fi->type;
1754                                 disp      = fi->offset;
1755                         }
1756
1757                         /* implicit null-pointer check */
1758                         switch (fieldtype) {
1759                         case TYPE_INT:
1760                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1761                                 M_ILD(d, s1, disp);
1762                                 break;
1763                         case TYPE_LNG:
1764                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1765                                 if (GET_HIGH_REG(d) == s1) {
1766                                         M_ILD(GET_LOW_REG(d), s1, disp + 4);
1767                                         M_ILD(GET_HIGH_REG(d), s1, disp);
1768                                 }
1769                                 else {
1770                                         M_ILD(GET_HIGH_REG(d), s1, disp);
1771                                         M_ILD(GET_LOW_REG(d), s1, disp + 4);
1772                                 }
1773                                 break;
1774                         case TYPE_ADR:
1775                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1776                                 M_ALD(d, s1, disp);
1777                                 break;
1778                         case TYPE_FLT:
1779                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1780                                 M_FLD(d, s1, disp);
1781                                 break;
1782                         case TYPE_DBL:
1783                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1784                                 M_DLD(d, s1, disp);
1785                                 break;
1786                         }
1787                         emit_store_dst(jd, iptr, d);
1788                         break;
1789
1790                 case ICMD_PUTFIELD:   /* ..., value  ==> ...                          */
1791
1792                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1793
1794                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1795                                 uf        = iptr->sx.s23.s3.uf;
1796                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1797                                 disp      = 0;
1798                         }
1799                         else {
1800                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1801                                 fieldtype = fi->type;
1802                                 disp      = fi->offset;
1803                         }
1804
1805                         if (IS_INT_LNG_TYPE(fieldtype)) {
1806                                 if (IS_2_WORD_TYPE(fieldtype))
1807                                         s2 = emit_load_s2(jd, iptr, REG_ITMP23_PACKED);
1808                                 else
1809                                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1810                         }
1811                         else
1812                                 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1813
1814                         if (INSTRUCTION_IS_UNRESOLVED(iptr))
1815                                 codegen_addpatchref(cd, PATCHER_get_putfield, uf, 0);
1816
1817                         /* implicit null-pointer check */
1818                         switch (fieldtype) {
1819                         case TYPE_INT:
1820                                 M_IST(s2, s1, disp);
1821                                 break;
1822                         case TYPE_LNG:
1823                                 M_IST(GET_LOW_REG(s2), s1, disp + 4);      /* keep this order */
1824                                 M_IST(GET_HIGH_REG(s2), s1, disp);         /* keep this order */
1825                                 break;
1826                         case TYPE_ADR:
1827                                 M_AST(s2, s1, disp);
1828                                 break;
1829                         case TYPE_FLT:
1830                                 M_FST(s2, s1, disp);
1831                                 break;
1832                         case TYPE_DBL:
1833                                 M_DST(s2, s1, disp);
1834                                 break;
1835                         }
1836                         break;
1837
1838
1839                 /* branch operations **************************************************/
1840
1841                 case ICMD_ATHROW:       /* ..., objectref ==> ... (, objectref)       */
1842
1843                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1844                         M_INTMOVE(s1, REG_ITMP1_XPTR);
1845
1846 #ifdef ENABLE_VERIFIER
1847                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1848                                 unresolved_class *uc = iptr->sx.s23.s2.uc;
1849
1850                                 codegen_addpatchref(cd, PATCHER_resolve_class, uc, 0);
1851                         }
1852 #endif /* ENABLE_VERIFIER */
1853
1854                         disp = dseg_add_functionptr(cd, asm_handle_exception);
1855                         M_ALD(REG_ITMP2, REG_PV, disp);
1856                         M_MTCTR(REG_ITMP2);
1857
1858                         if (jd->isleafmethod)
1859                                 M_MFLR(REG_ITMP3);                          /* save LR        */
1860
1861                         M_BL(0);                                        /* get current PC */
1862                         M_MFLR(REG_ITMP2_XPC);
1863
1864                         if (jd->isleafmethod)
1865                                 M_MTLR(REG_ITMP3);                          /* restore LR     */
1866
1867                         M_RTS;                                          /* jump to CTR    */
1868                         ALIGNCODENOP;
1869                         break;
1870
1871                 case ICMD_GOTO:         /* ... ==> ...                                */
1872                 case ICMD_RET:          /* ... ==> ...                                */
1873
1874                         emit_br(cd, iptr->dst.block);
1875                         ALIGNCODENOP;
1876                         break;
1877
1878                 case ICMD_JSR:          /* ... ==> ...                                */
1879
1880                         emit_br(cd, iptr->sx.s23.s3.jsrtarget.block);
1881                         ALIGNCODENOP;
1882                         break;
1883
1884                 case ICMD_IFNULL:       /* ..., value ==> ...                         */
1885                 case ICMD_IFNONNULL:
1886
1887                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1888                         M_TST(s1);
1889                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFNULL, BRANCH_OPT_NONE);
1890                         break;
1891
1892                 case ICMD_IFLT:
1893                 case ICMD_IFLE:
1894                 case ICMD_IFNE:
1895                 case ICMD_IFGT:
1896                 case ICMD_IFGE:
1897                 case ICMD_IFEQ:         /* ..., value ==> ...                         */
1898
1899                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1900                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767))
1901                                 M_CMPI(s1, iptr->sx.val.i);
1902                         else {
1903                                 ICONST(REG_ITMP2, iptr->sx.val.i);
1904                                 M_CMP(s1, REG_ITMP2);
1905                         }
1906                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFEQ, BRANCH_OPT_NONE);
1907                         break;
1908
1909
1910                 case ICMD_IF_LEQ:       /* ..., value ==> ...                         */
1911
1912                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1913                         s2 = emit_load_s1_high(jd, iptr, REG_ITMP2);
1914                         if (iptr->sx.val.l == 0) {
1915                                 M_OR_TST(s1, s2, REG_ITMP3);
1916                         }
1917                         else if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
1918                                 M_XOR_IMM(s2, 0, REG_ITMP2);
1919                                 M_XOR_IMM(s1, iptr->sx.val.l & 0xffff, REG_ITMP1);
1920                                 M_OR_TST(REG_ITMP1, REG_ITMP2, REG_ITMP3);
1921                         }
1922                         else {
1923                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1924                                 M_XOR(s1, REG_ITMP3, REG_ITMP1);
1925                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1926                                 M_XOR(s2, REG_ITMP3, REG_ITMP2);
1927                                 M_OR_TST(REG_ITMP1, REG_ITMP2, REG_ITMP3);
1928                         }
1929                         emit_beq(cd, iptr->dst.block);
1930                         break;
1931
1932                 case ICMD_IF_LLT:       /* ..., value ==> ...                         */
1933
1934                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1935                         s2 = emit_load_s1_high(jd, iptr, REG_ITMP2);
1936                         if (iptr->sx.val.l == 0) {
1937                                 /* if high word is less than zero, the whole long is too */
1938                                 M_CMPI(s2, 0);
1939                                 emit_blt(cd, iptr->dst.block);
1940                         }
1941                         else if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
1942                                 M_CMPI(s2, 0);
1943                                 emit_blt(cd, iptr->dst.block);
1944                                 emit_label_bgt(cd, BRANCH_LABEL_1);
1945                                 M_CMPUI(s1, iptr->sx.val.l & 0xffff);
1946                                 emit_blt(cd, iptr->dst.block);
1947                                 emit_label(cd, BRANCH_LABEL_1);
1948                         }
1949                         else {
1950                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1951                                 M_CMP(s2, REG_ITMP3);
1952                                 emit_blt(cd, iptr->dst.block);
1953                                 emit_label_bgt(cd, BRANCH_LABEL_1);
1954                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1955                                 M_CMPU(s1, REG_ITMP3);
1956                                 emit_blt(cd, iptr->dst.block);
1957                                 emit_label(cd, BRANCH_LABEL_1);
1958                         }
1959                         break;
1960
1961                 case ICMD_IF_LLE:       /* ..., value ==> ...                         */
1962
1963                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1964                         s2 = emit_load_s1_high(jd, iptr, REG_ITMP2);
1965 /*                      if (iptr->sx.val.l == 0) { */
1966 /*                              M_OR(s1, s2, REG_ITMP3); */
1967 /*                              M_CMPI(REG_ITMP3, 0); */
1968
1969 /*                      } else  */
1970                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
1971                                 M_CMPI(s2, 0);
1972                                 emit_blt(cd, iptr->dst.block);
1973                                 emit_label_bgt(cd, BRANCH_LABEL_1);
1974                                 M_CMPUI(s1, iptr->sx.val.l & 0xffff);
1975                         }
1976                         else {
1977                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1978                                 M_CMP(s2, REG_ITMP3);
1979                                 emit_blt(cd, iptr->dst.block);
1980                                 emit_label_bgt(cd, BRANCH_LABEL_1);
1981                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1982                                 M_CMPU(s1, REG_ITMP3);
1983                         }
1984                         emit_ble(cd, iptr->dst.block);
1985                         emit_label(cd, BRANCH_LABEL_1);
1986                         break;
1987
1988                 case ICMD_IF_LNE:       /* ..., value ==> ...                         */
1989
1990                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1991                         s2 = emit_load_s1_high(jd, iptr, REG_ITMP2);
1992                         if (iptr->sx.val.l == 0) {
1993                                 M_OR_TST(s1, s2, REG_ITMP3);
1994                         }
1995                         else if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
1996                                 M_XOR_IMM(s2, 0, REG_ITMP2);
1997                                 M_XOR_IMM(s1, iptr->sx.val.l & 0xffff, REG_ITMP1);
1998                                 M_OR_TST(REG_ITMP1, REG_ITMP2, REG_ITMP3);
1999                         }
2000                         else {
2001                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
2002                                 M_XOR(s1, REG_ITMP3, REG_ITMP1);
2003                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
2004                                 M_XOR(s2, REG_ITMP3, REG_ITMP2);
2005                                 M_OR_TST(REG_ITMP1, REG_ITMP2, REG_ITMP3);
2006                         }
2007                         emit_bne(cd, iptr->dst.block);
2008                         break;
2009
2010                 case ICMD_IF_LGT:       /* ..., value ==> ...                         */
2011
2012                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2013                         s2 = emit_load_s1_high(jd, iptr, REG_ITMP2);
2014 /*                      if (iptr->sx.val.l == 0) { */
2015 /*                              M_OR(s1, s2, REG_ITMP3); */
2016 /*                              M_CMPI(REG_ITMP3, 0); */
2017
2018 /*                      } else  */
2019                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
2020                                 M_CMPI(s2, 0);
2021                                 emit_bgt(cd, iptr->dst.block);
2022                                 emit_label_blt(cd, BRANCH_LABEL_1);
2023                                 M_CMPUI(s1, iptr->sx.val.l & 0xffff);
2024                         }
2025                         else {
2026                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
2027                                 M_CMP(s2, REG_ITMP3);
2028                                 emit_bgt(cd, iptr->dst.block);
2029                                 emit_label_blt(cd, BRANCH_LABEL_1);
2030                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
2031                                 M_CMPU(s1, REG_ITMP3);
2032                         }
2033                         emit_bgt(cd, iptr->dst.block);
2034                         emit_label(cd, BRANCH_LABEL_1);
2035                         break;
2036
2037                 case ICMD_IF_LGE:       /* ..., value ==> ...                         */
2038
2039                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2040                         s2 = emit_load_s1_high(jd, iptr, REG_ITMP2);
2041                         if (iptr->sx.val.l == 0) {
2042                                 /* if high word is greater equal zero, the whole long is too */
2043                                 M_CMPI(s2, 0);
2044                                 emit_bge(cd, iptr->dst.block);
2045                         }
2046                         else if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
2047                                 M_CMPI(s2, 0);
2048                                 emit_bgt(cd, iptr->dst.block);
2049                                 emit_label_blt(cd, BRANCH_LABEL_1);
2050                                 M_CMPUI(s1, iptr->sx.val.l & 0xffff);
2051                                 emit_bge(cd, iptr->dst.block);
2052                                 emit_label(cd, BRANCH_LABEL_1);
2053                         }
2054                         else {
2055                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
2056                                 M_CMP(s2, REG_ITMP3);
2057                                 emit_bgt(cd, iptr->dst.block);
2058                                 emit_label_blt(cd, BRANCH_LABEL_1);
2059                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
2060                                 M_CMPU(s1, REG_ITMP3);
2061                                 emit_bge(cd, iptr->dst.block);
2062                                 emit_label(cd, BRANCH_LABEL_1);
2063                         }
2064                         break;
2065
2066                 case ICMD_IF_ICMPEQ:    /* ..., value, value ==> ...                  */
2067                 case ICMD_IF_ICMPNE:
2068                 case ICMD_IF_ICMPLT:
2069                 case ICMD_IF_ICMPGT:
2070                 case ICMD_IF_ICMPLE:
2071                 case ICMD_IF_ICMPGE:
2072
2073                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2074                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2075                         M_CMP(s1, s2);
2076                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IF_ICMPEQ, BRANCH_OPT_NONE);
2077                         break;
2078
2079                 case ICMD_IF_ACMPEQ:    /* op1 = target JavaVM pc                     */
2080                 case ICMD_IF_ACMPNE:
2081
2082                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2083                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2084                         M_CMP(s1, s2);
2085                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IF_ACMPEQ, BRANCH_OPT_NONE);
2086                         break;
2087
2088                 case ICMD_IF_LCMPEQ:    /* ..., value, value ==> ...                  */
2089
2090                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
2091                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
2092                         M_CMP(s1, s2);
2093                         emit_label_bne(cd, BRANCH_LABEL_1);
2094                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2095                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
2096                         M_CMP(s1, s2);
2097                         emit_beq(cd, iptr->dst.block);
2098                         emit_label(cd, BRANCH_LABEL_1);
2099                         break;
2100
2101                 case ICMD_IF_LCMPNE:    /* ..., 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_bne(cd, iptr->dst.block);
2107                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2108                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
2109                         M_CMP(s1, s2);
2110                         emit_bne(cd, iptr->dst.block);
2111                         break;
2112
2113                 case ICMD_IF_LCMPLT:    /* ..., value, value ==> ...                  */
2114
2115                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
2116                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
2117                         M_CMP(s1, s2);
2118                         emit_blt(cd, iptr->dst.block);
2119                         emit_label_bgt(cd, BRANCH_LABEL_1);
2120                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2121                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
2122                         M_CMPU(s1, s2);
2123                         emit_blt(cd, iptr->dst.block);
2124                         emit_label(cd, BRANCH_LABEL_1);
2125                         break;
2126
2127                 case ICMD_IF_LCMPGT:    /* ..., value, value ==> ...                  */
2128
2129                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
2130                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
2131                         M_CMP(s1, s2);
2132                         emit_bgt(cd, iptr->dst.block);
2133                         emit_label_blt(cd, BRANCH_LABEL_1);
2134                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2135                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
2136                         M_CMPU(s1, s2);
2137                         emit_bgt(cd, iptr->dst.block);
2138                         emit_label(cd, BRANCH_LABEL_1);
2139                         break;
2140
2141                 case ICMD_IF_LCMPLE:    /* ..., value, value ==> ...                  */
2142
2143                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
2144                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
2145                         M_CMP(s1, s2);
2146                         emit_blt(cd, iptr->dst.block);
2147                         emit_label_bgt(cd, BRANCH_LABEL_1);
2148                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2149                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
2150                         M_CMPU(s1, s2);
2151                         emit_ble(cd, iptr->dst.block);
2152                         emit_label(cd, BRANCH_LABEL_1);
2153                         break;
2154
2155                 case ICMD_IF_LCMPGE:    /* ..., value, value ==> ...                  */
2156
2157                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
2158                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
2159                         M_CMP(s1, s2);
2160                         emit_bgt(cd, iptr->dst.block);
2161                         emit_label_blt(cd, BRANCH_LABEL_1);
2162                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2163                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
2164                         M_CMPU(s1, s2);
2165                         emit_bge(cd, iptr->dst.block);
2166                         emit_label(cd, BRANCH_LABEL_1);
2167                         break;
2168
2169                 case ICMD_IRETURN:      /* ..., retvalue ==> ...                      */
2170
2171                         REPLACEMENT_POINT_RETURN(cd, iptr);
2172                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2173                         M_INTMOVE(s1, REG_RESULT);
2174                         goto nowperformreturn;
2175
2176                 case ICMD_ARETURN:      /* ..., retvalue ==> ...                      */
2177
2178                         REPLACEMENT_POINT_RETURN(cd, iptr);
2179                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2180                         M_INTMOVE(s1, REG_RESULT);
2181
2182 #ifdef ENABLE_VERIFIER
2183                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2184                                 unresolved_class *uc = iptr->sx.s23.s2.uc;
2185
2186                                 codegen_addpatchref(cd, PATCHER_resolve_class, uc, 0);
2187                         }
2188 #endif /* ENABLE_VERIFIER */
2189                         goto nowperformreturn;
2190
2191                 case ICMD_LRETURN:      /* ..., retvalue ==> ...                      */
2192
2193                         REPLACEMENT_POINT_RETURN(cd, iptr);
2194                         s1 = emit_load_s1(jd, iptr, REG_RESULT_PACKED);
2195                         M_LNGMOVE(s1, REG_RESULT_PACKED);
2196                         goto nowperformreturn;
2197
2198                 case ICMD_FRETURN:      /* ..., retvalue ==> ...                      */
2199                 case ICMD_DRETURN:
2200
2201                         REPLACEMENT_POINT_RETURN(cd, iptr);
2202                         s1 = emit_load_s1(jd, iptr, REG_FRESULT);
2203                         M_FLTMOVE(s1, REG_FRESULT);
2204                         goto nowperformreturn;
2205
2206                 case ICMD_RETURN:      /* ...  ==> ...                                */
2207
2208                         REPLACEMENT_POINT_RETURN(cd, iptr);
2209
2210 nowperformreturn:
2211                         {
2212                         s4 i, p;
2213
2214                         p = cd->stackframesize;
2215
2216                         /* call trace function */
2217
2218                         emit_verbosecall_exit(jd);
2219
2220 #if defined(ENABLE_THREADS)
2221                         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
2222                                 disp = dseg_add_functionptr(cd, LOCK_monitor_exit);
2223                                 M_ALD(REG_ITMP3, REG_PV, disp);
2224                                 M_MTCTR(REG_ITMP3);
2225
2226                                 /* we need to save the proper return value */
2227
2228                                 switch (iptr->opc) {
2229                                 case ICMD_LRETURN:
2230                                         M_IST(REG_RESULT2, REG_SP, rd->memuse * 4 + 8);
2231                                         /* fall through */
2232                                 case ICMD_IRETURN:
2233                                 case ICMD_ARETURN:
2234                                         M_IST(REG_RESULT , REG_SP, rd->memuse * 4 + 4);
2235                                         break;
2236                                 case ICMD_FRETURN:
2237                                         M_FST(REG_FRESULT, REG_SP, rd->memuse * 4 + 4);
2238                                         break;
2239                                 case ICMD_DRETURN:
2240                                         M_DST(REG_FRESULT, REG_SP, rd->memuse * 4 + 4);
2241                                         break;
2242                                 }
2243
2244                                 M_ALD(REG_A0, REG_SP, rd->memuse * 4);
2245                                 M_JSR;
2246
2247                                 /* and now restore the proper return value */
2248
2249                                 switch (iptr->opc) {
2250                                 case ICMD_LRETURN:
2251                                         M_ILD(REG_RESULT2, REG_SP, rd->memuse * 4 + 8);
2252                                         /* fall through */
2253                                 case ICMD_IRETURN:
2254                                 case ICMD_ARETURN:
2255                                         M_ILD(REG_RESULT , REG_SP, rd->memuse * 4 + 4);
2256                                         break;
2257                                 case ICMD_FRETURN:
2258                                         M_FLD(REG_FRESULT, REG_SP, rd->memuse * 4 + 4);
2259                                         break;
2260                                 case ICMD_DRETURN:
2261                                         M_DLD(REG_FRESULT, REG_SP, rd->memuse * 4 + 4);
2262                                         break;
2263                                 }
2264                         }
2265 #endif
2266
2267                         /* restore return address                                         */
2268
2269                         if (!jd->isleafmethod) {
2270                                 /* ATTENTION: Don't use REG_ZERO (r0) here, as M_ALD
2271                                    may have a displacement overflow. */
2272
2273                                 M_ALD(REG_ITMP1, REG_SP, p * 4 + LA_LR_OFFSET);
2274                                 M_MTLR(REG_ITMP1);
2275                         }
2276
2277                         /* restore saved registers                                        */
2278
2279                         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
2280                                 p--; M_ILD(rd->savintregs[i], REG_SP, p * 4);
2281                         }
2282                         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
2283                                 p -= 2; M_DLD(rd->savfltregs[i], REG_SP, p * 4);
2284                         }
2285
2286                         /* deallocate stack                                               */
2287
2288                         if (cd->stackframesize)
2289                                 M_LDA(REG_SP, REG_SP, cd->stackframesize * 4);
2290
2291                         M_RET;
2292                         ALIGNCODENOP;
2293                         }
2294                         break;
2295
2296
2297                 case ICMD_TABLESWITCH:  /* ..., index ==> ...                         */
2298                         {
2299                         s4 i, l;
2300                         branch_target_t *table;
2301
2302                         table = iptr->dst.table;
2303
2304                         l = iptr->sx.s23.s2.tablelow;
2305                         i = iptr->sx.s23.s3.tablehigh;
2306
2307                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2308                         if (l == 0)
2309                                 M_INTMOVE(s1, REG_ITMP1);
2310                         else if (l <= 32768)
2311                                 M_LDA(REG_ITMP1, s1, -l);
2312                         else {
2313                                 ICONST(REG_ITMP2, l);
2314                                 M_ISUB(s1, REG_ITMP2, REG_ITMP1);
2315                         }
2316
2317                         i = i - l + 1;
2318
2319                         /* range check */
2320
2321                         M_CMPUI(REG_ITMP1, i - 1);
2322                         emit_bgt(cd, table[0].block);
2323
2324                         /* build jump table top down and use address of lowest entry */
2325
2326                         table += i;
2327
2328                         while (--i >= 0) {
2329                                 dseg_add_target(cd, table->block);
2330                                 --table;
2331                         }
2332
2333                         /* length of dataseg after last dseg_add_target is used by load */
2334
2335                         M_SLL_IMM(REG_ITMP1, 2, REG_ITMP1);
2336                         M_IADD(REG_ITMP1, REG_PV, REG_ITMP2);
2337                         M_ALD(REG_ITMP2, REG_ITMP2, -(cd->dseglen));
2338                         M_MTCTR(REG_ITMP2);
2339                         M_RTS;
2340                         ALIGNCODENOP;
2341                         }
2342                         break;
2343
2344
2345                 case ICMD_LOOKUPSWITCH: /* ..., key ==> ...                           */
2346                         {
2347                         s4 i;
2348                         lookup_target_t *lookup;
2349
2350                         lookup = iptr->dst.lookup;
2351
2352                         i = iptr->sx.s23.s2.lookupcount;
2353
2354                         MCODECHECK((i<<2)+8);
2355                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2356
2357                         while (--i >= 0) {
2358                                 if ((lookup->value >= -32768) && (lookup->value <= 32767)) {
2359                                         M_CMPI(s1, lookup->value);
2360                                 }
2361                                 else {
2362                                         disp = dseg_add_s4(cd, lookup->value);
2363                                         M_ILD(REG_ITMP2, REG_PV, disp);
2364                                         M_CMP(s1, REG_ITMP2);
2365                                 }
2366                                 emit_beq(cd, lookup->target.block);
2367                                 lookup++;
2368                         }
2369
2370                         emit_br(cd, iptr->sx.s23.s3.lookupdefault.block);
2371                         ALIGNCODENOP;
2372                         break;
2373                         }
2374
2375
2376                 case ICMD_BUILTIN:      /* ..., [arg1, [arg2 ...]] ==> ...            */
2377
2378                         bte = iptr->sx.s23.s3.bte;
2379                         md  = bte->md;
2380                         goto gen_method;
2381
2382                 case ICMD_INVOKESTATIC: /* ..., [arg1, [arg2 ...]] ==> ...            */
2383
2384                 case ICMD_INVOKESPECIAL:/* ..., objectref, [arg1, [arg2 ...]] ==> ... */
2385                 case ICMD_INVOKEVIRTUAL:/* op1 = arg count, val.a = method pointer    */
2386                 case ICMD_INVOKEINTERFACE:
2387
2388                         REPLACEMENT_POINT_INVOKE(cd, iptr);
2389
2390                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2391                                 lm = NULL;
2392                                 um = iptr->sx.s23.s3.um;
2393                                 md = um->methodref->parseddesc.md;
2394                         }
2395                         else {
2396                                 lm = iptr->sx.s23.s3.fmiref->p.method;
2397                                 um = NULL;
2398                                 md = lm->parseddesc;
2399                         }
2400
2401 gen_method:
2402                         s3 = md->paramcount;
2403
2404                         MCODECHECK((s3 << 1) + 64);
2405
2406                         /* copy arguments to registers or stack location */
2407
2408                         for (s3 = s3 - 1; s3 >= 0; s3--) {
2409                                 var = VAR(iptr->sx.s23.s2.args[s3]);
2410
2411                                 /* Already Preallocated? */
2412                                 if (var->flags & PREALLOC)
2413                                         continue;
2414
2415                                 if (IS_INT_LNG_TYPE(var->type)) {
2416                                         if (!md->params[s3].inmemory) {
2417                                                 if (IS_2_WORD_TYPE(var->type)) {
2418                                                         s1 = PACK_REGS(
2419                                                    rd->argintregs[GET_LOW_REG(md->params[s3].regoff)],
2420                                                    rd->argintregs[GET_HIGH_REG(md->params[s3].regoff)]);
2421                                                         d = emit_load(jd, iptr, var, s1);
2422                                                         M_LNGMOVE(d, s1);
2423                                                 }
2424                                                 else {
2425                                                         s1 = rd->argintregs[md->params[s3].regoff];
2426                                                         d = emit_load(jd, iptr, var, s1);
2427                                                         M_INTMOVE(d, s1);
2428                                                 }
2429                                         }
2430                                         else {
2431                                                 if (IS_2_WORD_TYPE(var->type)) {
2432                                                         d = emit_load(jd, iptr, var, REG_ITMP12_PACKED);
2433                                                         M_LST(d, REG_SP, md->params[s3].regoff * 4);
2434                                                 }
2435                                                 else {
2436                                                         d = emit_load(jd, iptr, var, REG_ITMP1);
2437                                                         M_IST(d, REG_SP, md->params[s3].regoff * 4);
2438                                                 }
2439                                         }
2440                                 }
2441                                 else {
2442                                         if (!md->params[s3].inmemory) {
2443                                                 s1 = rd->argfltregs[md->params[s3].regoff];
2444                                                 d = emit_load(jd, iptr, var, s1);
2445                                                 M_FLTMOVE(d, s1);
2446                                         }
2447                                         else {
2448                                                 d = emit_load(jd, iptr, var, REG_FTMP1);
2449                                                 if (IS_2_WORD_TYPE(var->type))
2450                                                         M_DST(d, REG_SP, md->params[s3].regoff * 4);
2451                                                 else
2452                                                         M_FST(d, REG_SP, md->params[s3].regoff * 4);
2453                                         }
2454                                 }
2455                         }
2456
2457                         switch (iptr->opc) {
2458                         case ICMD_BUILTIN:
2459                                 disp = dseg_add_functionptr(cd, bte->fp);
2460
2461                                 M_ALD(REG_PV, REG_PV, disp);  /* pointer to built-in-function */
2462
2463                                 /* generate the actual call */
2464
2465                                 M_MTCTR(REG_PV);
2466                                 M_JSR;
2467                                 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2468                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2469                                 M_MFLR(REG_ITMP1);
2470                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2471
2472                                 emit_exception_check(cd, iptr);
2473                                 break;
2474
2475                         case ICMD_INVOKESPECIAL:
2476                                 emit_nullpointer_check(cd, iptr, REG_A0);
2477                                 /* fall-through */
2478
2479                         case ICMD_INVOKESTATIC:
2480                                 if (lm == NULL) {
2481                                         disp = dseg_add_unique_address(cd, um);
2482
2483                                         codegen_addpatchref(cd, PATCHER_invokestatic_special,
2484                                                                                 um, disp);
2485                                 }
2486                                 else
2487                                         disp = dseg_add_address(cd, lm->stubroutine);
2488
2489                                 M_ALD(REG_PV, REG_PV, disp);
2490
2491                                 /* generate the actual call */
2492
2493                                 M_MTCTR(REG_PV);
2494                                 M_JSR;
2495                                 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2496                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2497                                 M_MFLR(REG_ITMP1);
2498                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2499                                 break;
2500
2501                         case ICMD_INVOKEVIRTUAL:
2502                                 if (lm == NULL) {
2503                                         codegen_addpatchref(cd, PATCHER_invokevirtual, um, 0);
2504
2505                                         s1 = 0;
2506                                 }
2507                                 else {
2508                                         s1 = OFFSET(vftbl_t, table[0]) +
2509                                                 sizeof(methodptr) * lm->vftblindex;
2510                                 }
2511
2512                                 /* implicit null-pointer check */
2513                                 M_ALD(REG_METHODPTR, REG_A0, OFFSET(java_objectheader, vftbl));
2514                                 M_ALD(REG_PV, REG_METHODPTR, s1);
2515
2516                                 /* generate the actual call */
2517
2518                                 M_MTCTR(REG_PV);
2519                                 M_JSR;
2520                                 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2521                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2522                                 M_MFLR(REG_ITMP1);
2523                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2524                                 break;
2525
2526                         case ICMD_INVOKEINTERFACE:
2527                                 if (lm == NULL) {
2528                                         codegen_addpatchref(cd, PATCHER_invokeinterface, um, 0);
2529
2530                                         s1 = 0;
2531                                         s2 = 0;
2532                                 }
2533                                 else {
2534                                         s1 = OFFSET(vftbl_t, interfacetable[0]) -
2535                                                 sizeof(methodptr*) * lm->class->index;
2536
2537                                         s2 = sizeof(methodptr) * (lm - lm->class->methods);
2538                                 }
2539
2540                                 /* implicit null-pointer check */
2541                                 M_ALD(REG_METHODPTR, REG_A0, OFFSET(java_objectheader, vftbl));
2542                                 M_ALD(REG_METHODPTR, REG_METHODPTR, s1);
2543                                 M_ALD(REG_PV, REG_METHODPTR, s2);
2544
2545                                 /* generate the actual call */
2546
2547                                 M_MTCTR(REG_PV);
2548                                 M_JSR;
2549                                 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2550                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2551                                 M_MFLR(REG_ITMP1);
2552                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2553                                 break;
2554                         }
2555
2556                         /* store return value */
2557
2558                         d = md->returntype.type;
2559
2560                         if (d != TYPE_VOID) {
2561                                 if (IS_INT_LNG_TYPE(d)) {
2562                                         if (IS_2_WORD_TYPE(d)) {
2563                                                 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
2564                                                 M_LNGMOVE(REG_RESULT_PACKED, s1);
2565                                         }
2566                                         else {
2567                                                 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2568                                                 M_INTMOVE(REG_RESULT, s1);
2569                                         }
2570                                 }
2571                                 else {
2572                                         s1 = codegen_reg_of_dst(jd, iptr, REG_FRESULT);
2573                                         M_FLTMOVE(REG_FRESULT, s1);
2574                                 }
2575                                 emit_store_dst(jd, iptr, s1);
2576                         }
2577                         break;
2578
2579
2580                 case ICMD_CHECKCAST:  /* ..., objectref ==> ..., objectref            */
2581                                       /* val.a: (classinfo*) superclass               */
2582
2583                         /*  superclass is an interface:
2584                          *
2585                          *  OK if ((sub == NULL) ||
2586                          *         (sub->vftbl->interfacetablelength > super->index) &&
2587                          *         (sub->vftbl->interfacetable[-super->index] != NULL));
2588                          *
2589                          *  superclass is a class:
2590                          *
2591                          *  OK if ((sub == NULL) || (0
2592                          *         <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2593                          *         super->vftbl->diffvall));
2594                          */
2595
2596                         if (!(iptr->flags.bits & INS_FLAG_ARRAY)) {
2597                                 /* object type cast-check */
2598
2599                                 classinfo *super;
2600                                 s4         superindex;
2601
2602                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2603                                         super      = NULL;
2604                                         superindex = 0;
2605                                 }
2606                                 else {
2607                                         super      = iptr->sx.s23.s3.c.cls;
2608                                         superindex = super->index;
2609                                 }
2610
2611 #if defined(ENABLE_THREADS)
2612                                 codegen_threadcritrestart(cd, cd->mcodeptr - cd->mcodebase);
2613 #endif
2614
2615                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2616
2617                                 /* if class is not resolved, check which code to call */
2618
2619                                 if (super == NULL) {
2620                                         M_TST(s1);
2621                                         emit_label_beq(cd, BRANCH_LABEL_1);
2622
2623                                         disp = dseg_add_unique_s4(cd, 0);         /* super->flags */
2624
2625                                         codegen_addpatchref(cd,
2626                                                                                 PATCHER_resolve_classref_to_flags,
2627                                                                                 iptr->sx.s23.s3.c.ref,
2628                                                                                 disp);
2629
2630                                         M_ILD(REG_ITMP2, REG_PV, disp);
2631                                         M_AND_IMM(REG_ITMP2, ACC_INTERFACE, REG_ITMP2);
2632                                         emit_label_beq(cd, BRANCH_LABEL_2);
2633                                 }
2634
2635                                 /* interface checkcast code */
2636
2637                                 if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2638                                         if (super == NULL) {
2639                                                 codegen_addpatchref(cd,
2640                                                                                         PATCHER_checkcast_interface,
2641                                                                                         iptr->sx.s23.s3.c.ref,
2642                                                                                         0);
2643                                         }
2644                                         else {
2645                                                 M_TST(s1);
2646                                                 emit_label_beq(cd, BRANCH_LABEL_3);
2647                                         }
2648
2649                                         M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2650                                         M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, interfacetablelength));
2651                                         M_LDATST(REG_ITMP3, REG_ITMP3, -superindex);
2652                                         emit_classcast_check(cd, iptr, BRANCH_LE, REG_ITMP3, s1);
2653
2654                                         M_ALD(REG_ITMP3, REG_ITMP2,
2655                                                   OFFSET(vftbl_t, interfacetable[0]) -
2656                                                   superindex * sizeof(methodptr*));
2657                                         M_TST(REG_ITMP3);
2658                                         emit_classcast_check(cd, iptr, BRANCH_EQ, REG_ITMP3, s1);
2659
2660                                         if (super == NULL)
2661                                                 emit_label_br(cd, BRANCH_LABEL_4);
2662                                         else
2663                                                 emit_label(cd, BRANCH_LABEL_3);
2664                                 }
2665
2666                                 /* class checkcast code */
2667
2668                                 if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2669                                         if (super == NULL) {
2670                                                 emit_label(cd, BRANCH_LABEL_2);
2671
2672                                                 disp = dseg_add_unique_address(cd, NULL);
2673
2674                                                 codegen_addpatchref(cd, PATCHER_resolve_classref_to_vftbl,
2675                                                                                         iptr->sx.s23.s3.c.ref,
2676                                                                                         disp);
2677                                         }
2678                                         else {
2679                                                 disp = dseg_add_address(cd, super->vftbl);
2680
2681                                                 M_TST(s1);
2682                                                 emit_label_beq(cd, BRANCH_LABEL_5);
2683                                         }
2684
2685                                         M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2686 #if defined(ENABLE_THREADS)
2687                                         codegen_threadcritstart(cd, cd->mcodeptr - cd->mcodebase);
2688 #endif
2689                                         M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2690                                         M_ALD(REG_ITMP2, REG_PV, disp);
2691                                         if (s1 != REG_ITMP1) {
2692                                                 M_ILD(REG_ITMP1, REG_ITMP2, OFFSET(vftbl_t, baseval));
2693                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2694 #if defined(ENABLE_THREADS)
2695                                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2696 #endif
2697                                                 M_ISUB(REG_ITMP3, REG_ITMP1, REG_ITMP3);
2698                                         }
2699                                         else {
2700                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, baseval));
2701                                                 M_ISUB(REG_ITMP3, REG_ITMP2, REG_ITMP3);
2702                                                 M_ALD(REG_ITMP2, REG_PV, disp);
2703                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2704 #if defined(ENABLE_THREADS)
2705                                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2706 #endif
2707                                         }
2708                                         M_CMPU(REG_ITMP3, REG_ITMP2);
2709                                         emit_classcast_check(cd, iptr, BRANCH_GT, REG_ITMP3, s1);
2710
2711                                         if (super != NULL)
2712                                                 emit_label(cd, BRANCH_LABEL_5);
2713                                 }
2714
2715                                 if (super == NULL) {
2716                                         emit_label(cd, BRANCH_LABEL_1);
2717                                         emit_label(cd, BRANCH_LABEL_4);
2718                                 }
2719
2720                                 d = codegen_reg_of_dst(jd, iptr, s1);
2721                         }
2722                         else {
2723                                 /* array type cast-check */
2724
2725                                 s1 = emit_load_s1(jd, iptr, REG_A0);
2726                                 M_INTMOVE(s1, REG_A0);
2727
2728                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2729                                         disp = dseg_add_unique_address(cd, NULL);
2730
2731                                         codegen_addpatchref(cd, PATCHER_resolve_classref_to_classinfo,
2732                                                                                 iptr->sx.s23.s3.c.ref,
2733                                                                                 disp);
2734                                 }
2735                                 else
2736                                         disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2737
2738                                 M_ALD(REG_A1, REG_PV, disp);
2739                                 disp = dseg_add_functionptr(cd, BUILTIN_arraycheckcast);
2740                                 M_ALD(REG_ITMP2, REG_PV, disp);
2741                                 M_MTCTR(REG_ITMP2);
2742                                 M_JSR;
2743                                 M_TST(REG_RESULT);
2744                                 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_RESULT, s1);
2745
2746                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2747                                 d = codegen_reg_of_dst(jd, iptr, s1);
2748                         }
2749                         M_INTMOVE(s1, d);
2750                         emit_store_dst(jd, iptr, d);
2751                         break;
2752
2753                 case ICMD_INSTANCEOF: /* ..., objectref ==> ..., intresult            */
2754                                       /* val.a: (classinfo*) superclass               */
2755
2756                         /*  superclass is an interface:
2757                          *
2758                          *  return (sub != NULL) &&
2759                          *         (sub->vftbl->interfacetablelength > super->index) &&
2760                          *         (sub->vftbl->interfacetable[-super->index] != NULL);
2761                          *
2762                          *  superclass is a class:
2763                          *
2764                          *  return ((sub != NULL) && (0
2765                          *          <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2766                          *          super->vftbl->diffvall));
2767                          */
2768
2769                         {
2770                         classinfo *super;
2771                         s4         superindex;
2772
2773                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2774                                 super      = NULL;
2775                                 superindex = 0;
2776                         }
2777                         else {
2778                                 super      = iptr->sx.s23.s3.c.cls;
2779                                 superindex = super->index;
2780                         }
2781
2782 #if defined(ENABLE_THREADS)
2783                         codegen_threadcritrestart(cd, cd->mcodeptr - cd->mcodebase);
2784 #endif
2785                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2786
2787                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
2788                         if (s1 == d) {
2789                                 M_MOV(s1, REG_ITMP1);
2790                                 s1 = REG_ITMP1;
2791                         }
2792
2793                         M_CLR(d);
2794
2795                         /* if class is not resolved, check which code to call */
2796
2797                         if (super == NULL) {
2798                                 M_TST(s1);
2799                                 emit_label_beq(cd, BRANCH_LABEL_1);
2800
2801                                 disp = dseg_add_unique_s4(cd, 0);             /* super->flags */
2802
2803                                 codegen_addpatchref(cd, PATCHER_resolve_classref_to_flags,
2804                                                                         iptr->sx.s23.s3.c.ref, disp);
2805
2806                                 M_ILD(REG_ITMP3, REG_PV, disp);
2807                                 M_AND_IMM(REG_ITMP3, ACC_INTERFACE, REG_ITMP3);
2808                                 emit_label_beq(cd, BRANCH_LABEL_2);
2809                         }
2810
2811                         /* interface instanceof code */
2812
2813                         if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2814                                 if (super == NULL) {
2815                                         codegen_addpatchref(cd,
2816                                                                                 PATCHER_instanceof_interface,
2817                                                                                 iptr->sx.s23.s3.c.ref, 0);
2818                                 }
2819                                 else {
2820                                         M_TST(s1);
2821                                         emit_label_beq(cd, BRANCH_LABEL_3);
2822                                 }
2823
2824                                 M_ALD(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
2825                                 M_ILD(REG_ITMP3, REG_ITMP1, OFFSET(vftbl_t, interfacetablelength));
2826                                 M_LDATST(REG_ITMP3, REG_ITMP3, -superindex);
2827                                 M_BLE(4);
2828                                 M_ALD(REG_ITMP1, REG_ITMP1,
2829                                           OFFSET(vftbl_t, interfacetable[0]) -
2830                                           superindex * sizeof(methodptr*));
2831                                 M_TST(REG_ITMP1);
2832                                 M_BEQ(1);
2833                                 M_IADD_IMM(REG_ZERO, 1, d);
2834
2835                                 if (super == NULL)
2836                                         emit_label_br(cd, BRANCH_LABEL_4);
2837                                 else
2838                                         emit_label(cd, BRANCH_LABEL_3);
2839                         }
2840
2841                         /* class instanceof code */
2842
2843                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2844                                 if (super == NULL) {
2845                                         emit_label(cd, BRANCH_LABEL_2);
2846
2847                                         disp = dseg_add_unique_address(cd, NULL);
2848
2849                                         codegen_addpatchref(cd, PATCHER_resolve_classref_to_vftbl,
2850                                                                                 iptr->sx.s23.s3.c.ref,
2851                                                                                 disp);
2852                                 }
2853                                 else {
2854                                         disp = dseg_add_address(cd, super->vftbl);
2855
2856                                         M_TST(s1);
2857                                         emit_label_beq(cd, BRANCH_LABEL_5);
2858                                 }
2859
2860                                 M_ALD(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
2861                                 M_ALD(REG_ITMP2, REG_PV, disp);
2862 #if defined(ENABLE_THREADS)
2863                                 codegen_threadcritstart(cd, cd->mcodeptr - cd->mcodebase);
2864 #endif
2865                                 M_ILD(REG_ITMP1, REG_ITMP1, OFFSET(vftbl_t, baseval));
2866                                 M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2867                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2868 #if defined(ENABLE_THREADS)
2869                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2870 #endif
2871                                 M_ISUB(REG_ITMP1, REG_ITMP3, REG_ITMP1);
2872                                 M_CMPU(REG_ITMP1, REG_ITMP2);
2873                                 M_CLR(d);
2874                                 M_BGT(1);
2875                                 M_IADD_IMM(REG_ZERO, 1, d);
2876
2877                                 if (super != NULL)
2878                                         emit_label(cd, BRANCH_LABEL_5);
2879                         }
2880
2881                         if (super == NULL) {
2882                                 emit_label(cd, BRANCH_LABEL_1);
2883                                 emit_label(cd, BRANCH_LABEL_4);
2884                         }
2885
2886                         emit_store_dst(jd, iptr, d);
2887                         }
2888                         break;
2889
2890                 case ICMD_MULTIANEWARRAY:/* ..., cnt1, [cnt2, ...] ==> ..., arrayref  */
2891
2892                         /* check for negative sizes and copy sizes to stack if necessary  */
2893
2894                         MCODECHECK((iptr->s1.argcount << 1) + 64);
2895
2896                         for (s1 = iptr->s1.argcount; --s1 >= 0;) {
2897                                 var = VAR(iptr->sx.s23.s2.args[s1]);
2898
2899                                 /* copy SAVEDVAR sizes to stack */
2900
2901                                 /* Already Preallocated? */
2902                                 if (!(var->flags & PREALLOC)) {
2903                                         s2 = emit_load(jd, iptr, var, REG_ITMP1);
2904 #if defined(__DARWIN__)
2905                                         M_IST(s2, REG_SP, LA_SIZE + (s1 + INT_ARG_CNT) * 4);
2906 #else
2907                                         M_IST(s2, REG_SP, LA_SIZE + (s1 + 3) * 4);
2908 #endif
2909                                 }
2910                         }
2911
2912                         /* a0 = dimension count */
2913
2914                         ICONST(REG_A0, iptr->s1.argcount);
2915
2916                         /* is patcher function set? */
2917
2918                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2919                                 disp = dseg_add_unique_address(cd, NULL);
2920
2921                                 codegen_addpatchref(cd, PATCHER_resolve_classref_to_classinfo,
2922                                                                         iptr->sx.s23.s3.c.ref, disp);
2923                         }
2924                         else
2925                                 disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2926
2927                         /* a1 = arraydescriptor */
2928
2929                         M_ALD(REG_A1, REG_PV, disp);
2930
2931                         /* a2 = pointer to dimensions = stack pointer */
2932
2933 #if defined(__DARWIN__)
2934                         M_LDA(REG_A2, REG_SP, LA_SIZE + INT_ARG_CNT * 4);
2935 #else
2936                         M_LDA(REG_A2, REG_SP, LA_SIZE + 3 * 4);
2937 #endif
2938
2939                         disp = dseg_add_functionptr(cd, BUILTIN_multianewarray);
2940                         M_ALD(REG_ITMP3, REG_PV, disp);
2941                         M_MTCTR(REG_ITMP3);
2942                         M_JSR;
2943
2944                         /* check for exception before result assignment */
2945
2946                         emit_exception_check(cd, iptr);
2947
2948                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2949                         M_INTMOVE(REG_RESULT, d);
2950                         emit_store_dst(jd, iptr, d);
2951                         break;
2952
2953                 default:
2954                         exceptions_throw_internalerror("Unknown ICMD %d during code generation",
2955                                                                                    iptr->opc);
2956                         return false;
2957         } /* switch */
2958
2959         } /* for instruction */
2960
2961         } /* if (bptr -> flags >= BBREACHED) */
2962         } /* for basic block */
2963
2964         dseg_createlinenumbertable(cd);
2965
2966         /* generate stubs */
2967
2968         emit_patcher_stubs(jd);
2969         REPLACEMENT_EMIT_STUBS(jd);
2970
2971         /* everything's ok */
2972
2973         return true;
2974 }
2975
2976
2977 /* createcompilerstub **********************************************************
2978
2979    Creates a stub routine which calls the compiler.
2980
2981 *******************************************************************************/
2982
2983 #define COMPILERSTUB_DATASIZE    3 * SIZEOF_VOID_P
2984 #define COMPILERSTUB_CODESIZE    4 * 4
2985
2986 #define COMPILERSTUB_SIZE        COMPILERSTUB_DATASIZE + COMPILERSTUB_CODESIZE
2987
2988
2989 u1 *createcompilerstub(methodinfo *m)
2990 {
2991         u1          *s;                     /* memory to hold the stub            */
2992         ptrint      *d;
2993         codegendata *cd;
2994         s4           dumpsize;
2995
2996         s = CNEW(u1, COMPILERSTUB_SIZE);
2997
2998         /* set data pointer and code pointer */
2999
3000         d = (ptrint *) s;
3001         s = s + COMPILERSTUB_DATASIZE;
3002
3003         /* mark start of dump memory area */
3004
3005         dumpsize = dump_size();
3006
3007         cd = DNEW(codegendata);
3008         cd->mcodeptr = s;
3009
3010         /* The codeinfo pointer is actually a pointer to the
3011            methodinfo. This fakes a codeinfo structure. */
3012
3013         d[0] = (ptrint) asm_call_jit_compiler;
3014         d[1] = (ptrint) m;
3015         d[2] = (ptrint) &d[1];                                    /* fake code->m */
3016
3017         M_ALD_INTERN(REG_ITMP1, REG_PV, -2 * SIZEOF_VOID_P);
3018         M_ALD_INTERN(REG_PV, REG_PV, -3 * SIZEOF_VOID_P);
3019         M_MTCTR(REG_PV);
3020         M_RTS;
3021
3022         md_cacheflush((u1 *) d, COMPILERSTUB_SIZE);
3023
3024 #if defined(ENABLE_STATISTICS)
3025         if (opt_stat)
3026                 count_cstub_len += COMPILERSTUB_SIZE;
3027 #endif
3028
3029         /* release dump area */
3030
3031         dump_release(dumpsize);
3032
3033         return s;
3034 }
3035
3036
3037 /* createnativestub ************************************************************
3038
3039    Creates a stub routine which calls a native method.
3040
3041 *******************************************************************************/
3042
3043 u1 *createnativestub(functionptr f, jitdata *jd, methoddesc *nmd)
3044 {
3045         methodinfo   *m;
3046         codeinfo     *code;
3047         codegendata  *cd;
3048         registerdata *rd;
3049         methoddesc   *md;
3050         s4            nativeparams;
3051         s4            i, j;                 /* count variables                    */
3052         s4            t;
3053         s4            s1, s2, disp;
3054         s4            funcdisp;
3055
3056         /* get required compiler data */
3057
3058         m    = jd->m;
3059         code = jd->code;
3060         cd   = jd->cd;
3061         rd   = jd->rd;
3062
3063         /* set some variables */
3064
3065         md = m->parseddesc;
3066         nativeparams = (m->flags & ACC_STATIC) ? 2 : 1;
3067
3068         /* calculate stackframe size */
3069
3070         cd->stackframesize =
3071                 sizeof(stackframeinfo) / SIZEOF_VOID_P +
3072                 sizeof(localref_table) / SIZEOF_VOID_P +
3073                 4 +                             /* 4 stackframeinfo arguments (darwin)*/
3074                 nmd->paramcount * 2 +           /* assume all arguments are doubles   */
3075                 nmd->memuse;
3076
3077         /* keep stack 16-byte aligned */
3078
3079         cd->stackframesize = (cd->stackframesize + 3) & ~3;
3080
3081         /* create method header */
3082
3083         (void) dseg_add_unique_address(cd, code);              /* CodeinfoPointer */
3084         (void) dseg_add_unique_s4(cd, cd->stackframesize * 4); /* FrameSize       */
3085         (void) dseg_add_unique_s4(cd, 0);                      /* IsSync          */
3086         (void) dseg_add_unique_s4(cd, 0);                      /* IsLeaf          */
3087         (void) dseg_add_unique_s4(cd, 0);                      /* IntSave         */
3088         (void) dseg_add_unique_s4(cd, 0);                      /* FltSave         */
3089         (void) dseg_addlinenumbertablesize(cd);
3090         (void) dseg_add_unique_s4(cd, 0);                      /* ExTableSize     */
3091
3092         /* generate code */
3093
3094         M_MFLR(REG_ZERO);
3095         M_AST_INTERN(REG_ZERO, REG_SP, LA_LR_OFFSET);
3096         M_STWU(REG_SP, REG_SP, -(cd->stackframesize * 4));
3097
3098         /* get function address (this must happen before the stackframeinfo) */
3099
3100         funcdisp = dseg_add_functionptr(cd, f);
3101
3102 #if !defined(WITH_STATIC_CLASSPATH)
3103         if (f == NULL)
3104                 codegen_addpatchref(cd, PATCHER_resolve_native_function, m, funcdisp);
3105 #endif
3106
3107         /* emit trace code */
3108
3109         emit_verbosecall_enter(jd);
3110
3111         /* save integer and float argument registers */
3112
3113         j = 0;
3114
3115         for (i = 0; i < md->paramcount; i++) {
3116                 t = md->paramtypes[i].type;
3117
3118                 if (IS_INT_LNG_TYPE(t)) {
3119                         if (!md->params[i].inmemory) {
3120                                 s1 = md->params[i].regoff;
3121                                 if (IS_2_WORD_TYPE(t)) {
3122                                         M_IST(rd->argintregs[GET_HIGH_REG(s1)], REG_SP, LA_SIZE + 4 * 4 + j * 4);
3123                                         j++;
3124                                         M_IST(rd->argintregs[GET_LOW_REG(s1)], REG_SP, LA_SIZE + 4 * 4 + j * 4);
3125                                 } else {
3126                                         M_IST(rd->argintregs[s1], REG_SP, LA_SIZE + 4 * 4 + j * 4);
3127                                 }
3128                                 j++;
3129                         }
3130                 }
3131         }
3132
3133         for (i = 0; i < md->paramcount; i++) {
3134                 if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
3135                         if (!md->params[i].inmemory) {
3136                                 s1 = md->params[i].regoff;
3137                                 M_DST(rd->argfltregs[s1], REG_SP, LA_SIZE + 4 * 4 + j * 8);
3138                                 j++;
3139                         }
3140                 }
3141         }
3142
3143         /* create native stack info */
3144
3145         M_AADD_IMM(REG_SP, cd->stackframesize * 4, REG_A0);
3146         M_MOV(REG_PV, REG_A1);
3147         M_AADD_IMM(REG_SP, cd->stackframesize * 4, REG_A2);
3148         M_ALD(REG_A3, REG_SP, cd->stackframesize * 4 + LA_LR_OFFSET);
3149         disp = dseg_add_functionptr(cd, codegen_start_native_call);
3150         M_ALD(REG_ITMP1, REG_PV, disp);
3151         M_MTCTR(REG_ITMP1);
3152         M_JSR;
3153
3154         /* restore integer and float argument registers */
3155
3156         j = 0;
3157
3158         for (i = 0; i < md->paramcount; i++) {
3159                 t = md->paramtypes[i].type;
3160
3161                 if (IS_INT_LNG_TYPE(t)) {
3162                         if (!md->params[i].inmemory) {
3163                                 s1 = md->params[i].regoff;
3164
3165                                 if (IS_2_WORD_TYPE(t)) {
3166                                         M_ILD(rd->argintregs[GET_HIGH_REG(s1)], REG_SP, LA_SIZE + 4 * 4 + j * 4);
3167                                         j++;
3168                                         M_ILD(rd->argintregs[GET_LOW_REG(s1)], REG_SP, LA_SIZE + 4 * 4 + j * 4);
3169                                 } else {
3170                                         M_ILD(rd->argintregs[s1], REG_SP, LA_SIZE + 4 * 4 + j * 4);
3171                                 }
3172                                 j++;
3173                         }
3174                 }
3175         }
3176
3177         for (i = 0; i < md->paramcount; i++) {
3178                 if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
3179                         if (!md->params[i].inmemory) {
3180                                 s1 = md->params[i].regoff;
3181                                 M_DLD(rd->argfltregs[s1], REG_SP, LA_SIZE + 4 * 4 + j * 8);
3182                                 j++;
3183                         }
3184                 }
3185         }
3186
3187         /* copy or spill arguments to new locations */
3188
3189         for (i = md->paramcount - 1, j = i + nativeparams; i >= 0; i--, j--) {
3190                 t = md->paramtypes[i].type;
3191
3192                 if (IS_INT_LNG_TYPE(t)) {
3193                         if (!md->params[i].inmemory) {
3194                                 if (IS_2_WORD_TYPE(t))
3195                                         s1 = PACK_REGS(
3196                                                 rd->argintregs[GET_LOW_REG(md->params[i].regoff)],
3197                                             rd->argintregs[GET_HIGH_REG(md->params[i].regoff)]);
3198                                 else
3199                                         s1 = rd->argintregs[md->params[i].regoff];
3200
3201                                 if (!nmd->params[j].inmemory) {
3202                                         if (IS_2_WORD_TYPE(t)) {
3203                                                 s2 = PACK_REGS(
3204                                                    rd->argintregs[GET_LOW_REG(nmd->params[j].regoff)],
3205                                                    rd->argintregs[GET_HIGH_REG(nmd->params[j].regoff)]);
3206                                                 M_LNGMOVE(s1, s2);
3207                                         } else {
3208                                                 s2 = rd->argintregs[nmd->params[j].regoff];
3209                                                 M_INTMOVE(s1, s2);
3210                                         }
3211
3212                                 } else {
3213                                         s2 = nmd->params[j].regoff;
3214                                         if (IS_2_WORD_TYPE(t))
3215                                                 M_LST(s1, REG_SP, s2 * 4);
3216                                         else
3217                                                 M_IST(s1, REG_SP, s2 * 4);
3218                                 }
3219
3220                         } else {
3221                                 s1 = md->params[i].regoff + cd->stackframesize;
3222                                 s2 = nmd->params[j].regoff;
3223
3224                                 M_ILD(REG_ITMP1, REG_SP, s1 * 4);
3225                                 if (IS_2_WORD_TYPE(t))
3226                                         M_ILD(REG_ITMP2, REG_SP, s1 * 4 + 4);
3227
3228                                 M_IST(REG_ITMP1, REG_SP, s2 * 4);
3229                                 if (IS_2_WORD_TYPE(t))
3230                                         M_IST(REG_ITMP2, REG_SP, s2 * 4 + 4);
3231                         }
3232
3233                 } else {
3234                         /* We only copy spilled float arguments, as the float
3235                            argument registers keep unchanged. */
3236
3237                         if (md->params[i].inmemory) {
3238                                 s1 = md->params[i].regoff + cd->stackframesize;
3239                                 s2 = nmd->params[j].regoff;
3240
3241                                 if (IS_2_WORD_TYPE(t)) {
3242                                         M_DLD(REG_FTMP1, REG_SP, s1 * 4);
3243                                         M_DST(REG_FTMP1, REG_SP, s2 * 4);
3244
3245                                 } else {
3246                                         M_FLD(REG_FTMP1, REG_SP, s1 * 4);
3247                                         M_FST(REG_FTMP1, REG_SP, s2 * 4);
3248                                 }
3249                         }
3250                 }
3251         }
3252
3253         /* put class into second argument register */
3254
3255         if (m->flags & ACC_STATIC) {
3256                 disp = dseg_add_address(cd, m->class);
3257                 M_ALD(REG_A1, REG_PV, disp);
3258         }
3259
3260         /* put env into first argument register */
3261
3262         disp = dseg_add_address(cd, _Jv_env);
3263         M_ALD(REG_A0, REG_PV, disp);
3264
3265         /* generate the actual native call */
3266
3267         M_ALD(REG_ITMP3, REG_PV, funcdisp);
3268         M_MTCTR(REG_ITMP3);
3269         M_JSR;
3270
3271         /* print call trace */
3272
3273         emit_verbosecall_exit(jd);
3274
3275         /* save return value */
3276
3277         if (md->returntype.type != TYPE_VOID) {
3278                 if (IS_INT_LNG_TYPE(md->returntype.type)) {
3279                         if (IS_2_WORD_TYPE(md->returntype.type))
3280                                 M_IST(REG_RESULT2, REG_SP, LA_SIZE + 2 * 4);
3281                         M_IST(REG_RESULT, REG_SP, LA_SIZE + 1 * 4);
3282                 }
3283                 else {
3284                         if (IS_2_WORD_TYPE(md->returntype.type))
3285                                 M_DST(REG_FRESULT, REG_SP, LA_SIZE + 1 * 4);
3286                         else
3287                                 M_FST(REG_FRESULT, REG_SP, LA_SIZE + 1 * 4);
3288                 }
3289         }
3290
3291         /* remove native stackframe info */
3292
3293         M_AADD_IMM(REG_SP, cd->stackframesize * 4, REG_A0);
3294         disp = dseg_add_functionptr(cd, codegen_finish_native_call);
3295         M_ALD(REG_ITMP1, REG_PV, disp);
3296         M_MTCTR(REG_ITMP1);
3297         M_JSR;
3298         M_MOV(REG_RESULT, REG_ITMP1_XPTR);
3299
3300         /* restore return value */
3301
3302         if (md->returntype.type != TYPE_VOID) {
3303                 if (IS_INT_LNG_TYPE(md->returntype.type)) {
3304                         if (IS_2_WORD_TYPE(md->returntype.type))
3305                                 M_ILD(REG_RESULT2, REG_SP, LA_SIZE + 2 * 4);
3306                         M_ILD(REG_RESULT, REG_SP, LA_SIZE + 1 * 4);
3307                 }
3308                 else {
3309                         if (IS_2_WORD_TYPE(md->returntype.type))
3310                                 M_DLD(REG_FRESULT, REG_SP, LA_SIZE + 1 * 4);
3311                         else
3312                                 M_FLD(REG_FRESULT, REG_SP, LA_SIZE + 1 * 4);
3313                 }
3314         }
3315
3316         M_ALD(REG_ITMP2_XPC, REG_SP, cd->stackframesize * 4 + LA_LR_OFFSET);
3317         M_MTLR(REG_ITMP2_XPC);
3318         M_LDA(REG_SP, REG_SP, cd->stackframesize * 4); /* remove stackframe       */
3319
3320         /* check for exception */
3321
3322         M_TST(REG_ITMP1_XPTR);
3323         M_BNE(1);                           /* if no exception then return        */
3324
3325         M_RET;
3326
3327         /* handle exception */
3328
3329         M_IADD_IMM(REG_ITMP2_XPC, -4, REG_ITMP2_XPC);  /* exception address       */
3330
3331         disp = dseg_add_functionptr(cd, asm_handle_nat_exception);
3332         M_ALD(REG_ITMP3, REG_PV, disp);
3333         M_MTCTR(REG_ITMP3);
3334         M_RTS;
3335
3336         /* generate patcher stubs */
3337
3338         emit_patcher_stubs(jd);
3339
3340         codegen_finish(jd);
3341
3342         return code->entrypoint;
3343 }
3344
3345
3346 /*
3347  * These are local overrides for various environment variables in Emacs.
3348  * Please do not remove this and leave it at the end of the file, where
3349  * Emacs will automagically detect them.
3350  * ---------------------------------------------------------------------
3351  * Local variables:
3352  * mode: c
3353  * indent-tabs-mode: t
3354  * c-basic-offset: 4
3355  * tab-width: 4
3356  * End:
3357  * vim:noexpandtab:sw=4:ts=4:
3358  */