src/vm/jit/powerpc64/codegen.c

   1 /* src/vm/jit/powerpc64/codegen.c - machine code generator for 32-bit PowerPC
   2
   3    Copyright (C) 1996-2005, 2006 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    Contact: cacao@cacaojvm.org
  26
  27    Authors: Andreas Krall
  28             Stefan Ring
  29
  30    Changes: Christian Thalinger
  31             Christian Ullrich
  32             Edwin Steiner
  33             Roland Lezuo
  34
  35    $Id: codegen.c 5957 2006-11-12 12:57:59Z twisti $
  36
  37 */
  38
  39
  40 #include "config.h"
  41
  42 #include <assert.h>
  43 #include <stdio.h>
  44 #include <signal.h>
  45
  46 #include "vm/types.h"
  47
  48 #include "md-abi.h"
  49 #include "vm/jit/abi-asm.h"
  50
  51 #include "vm/jit/powerpc64/arch.h"
  52 #include "vm/jit/powerpc64/codegen.h"
  53
  54 #include "mm/memory.h"
  55 #include "native/native.h"
  56 #include "vm/builtin.h"
  57 #include "vm/exceptions.h"
  58 #include "vm/global.h"
  59 #include "vm/loader.h"
  60 #include "vm/options.h"
  61 #include "vm/stringlocal.h"
  62 #include "vm/vm.h"
  63 #include "vm/jit/asmpart.h"
  64 #include "vm/jit/codegen-common.h"
  65 #include "vm/jit/dseg.h"
  66 #include "vm/jit/emit-common.h"
  67 #include "vm/jit/jit.h"
  68 #include "vm/jit/parse.h"
  69 #include "vm/jit/patcher.h"
  70 #include "vm/jit/reg.h"
  71 #include "vm/jit/replace.h"
  72
  73 #if defined(ENABLE_LSRA)
  74 # include "vm/jit/allocator/lsra.h"
  75 #endif
  76
  77
  78 /* codegen *********************************************************************
  79
  80    Generates machine code.
  81
  82 *******************************************************************************/
  83
  84 bool codegen(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         builtintable_entry *bte;
  99         methoddesc         *md;
 100         rplpoint           *replacementpoint;
 101         s4                  fieldtype;
 102         s4                  varindex;
 103         unresolved_field   *uf;
 104         fieldinfo          *fi;
 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         lm = NULL;
 117         bte = NULL;
 118
 119         {
 120         s4 i, p, t, l;
 121         s4 savedregs_num;
 122
 123         savedregs_num = 0;
 124
 125         /* space to save used callee saved registers */
 126
 127         savedregs_num += (INT_SAV_CNT - rd->savintreguse);
 128         savedregs_num += (FLT_SAV_CNT - rd->savfltreguse);
 129
 130         cd->stackframesize = rd->memuse + savedregs_num;
 131
 132 #if defined(ENABLE_THREADS)
 133         /* space to save argument of monitor_enter and Return Values to survive */
 134     /* monitor_exit. The stack position for the argument can not be shared  */
 135         /* with place to save the return register on PPC64, since both values     */
 136         /* reside in R3 */
 137         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
 138                 /* reserve 2 slots for long/double return values for monitorexit */
 139                 cd->stackframesize += 2;
 140         }
 141
 142 #endif
 143
 144         /* create method header */
 145
 146         /* align stack to 16-bytes */
 147
 148 /* FIXME */
 149 /*      if (!m->isleafmethod || opt_verbosecall) */
 150 /*              stackframesize = (stackframesize + 3) & ~3;
 151 */
 152 /*      else if (m->isleafmethod && (stackframesize == LA_WORD_SIZE)) */
 153 /*              stackframesize = 0; */
 154
 155         (void) dseg_addaddress(cd, code);                      /* CodeinfoPointer */
 156         (void) dseg_adds4(cd, cd->stackframesize * 8);             /* FrameSize       */
 157
 158 #if defined(ENABLE_THREADS)
 159         /* IsSync contains the offset relative to the stack pointer for the
 160            argument of monitor_exit used in the exception handler. Since the
 161            offset could be zero and give a wrong meaning of the flag it is
 162            offset by one.
 163         */
 164
 165         if (checksync && (m->flags & ACC_SYNCHRONIZED))
 166                 (void) dseg_adds4(cd, (rd->memuse + 1) * 8);       /* IsSync          */
 167         else
 168 #endif
 169                 (void) dseg_adds4(cd, 0);                          /* IsSync          */
 170
 171         (void) dseg_adds4(cd, jd->isleafmethod);                /* IsLeaf          */
 172         (void) dseg_adds4(cd, INT_SAV_CNT - rd->savintreguse); /* IntSave         */
 173         (void) dseg_adds4(cd, FLT_SAV_CNT - rd->savfltreguse); /* FltSave         */
 174
 175         dseg_addlinenumbertablesize(cd);
 176
 177         (void) dseg_adds4(cd, jd->exceptiontablelength);       /* ExTableSize     */
 178
 179         /* create exception table */
 180
 181         for (ex = jd->exceptiontable; ex != NULL; ex = ex->down) {
 182                 dseg_addtarget(cd, ex->start);
 183                 dseg_addtarget(cd, ex->end);
 184                 dseg_addtarget(cd, ex->handler);
 185                 (void) dseg_addaddress(cd, ex->catchtype.any);
 186         }
 187
 188         /* create stack frame (if necessary) */
 189
 190         if (!jd->isleafmethod) {
 191                 M_MFLR(REG_ZERO);
 192                 M_AST(REG_ZERO, REG_SP, LA_LR_OFFSET);
 193         }
 194
 195         if (cd->stackframesize)
 196                 M_STDU(REG_SP, REG_SP, -cd->stackframesize * 8);
 197
 198         /* save return address and used callee saved registers */
 199
 200         p = cd->stackframesize;
 201         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
 202                 p--; M_LST(rd->savintregs[i], REG_SP, p * 8);
 203         }
 204         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
 205                 p --; M_DST(rd->savfltregs[i], REG_SP, p * 8);
 206         }
 207
 208         /* take arguments out of register or stack frame */
 209
 210         md = m->parseddesc;
 211
 212         for (p = 0, l = 0; p < md->paramcount; p++) {
 213                 t = md->paramtypes[p].type;
 214                 varindex = jd->local_map[l*5 + t];
 215                 l++;
 216                 if (IS_2_WORD_TYPE(t))    /* increment local counter for 2 word types */
 217                         l++;
 218                 if (varindex == UNUSED)
 219                         continue;
 220                 var = VAR(varindex);
 221                 s1 = md->params[p].regoff;
 222                 if (IS_INT_LNG_TYPE(t)) {                    /* integer args          */
 223                         if (!md->params[p].inmemory) {           /* register arguments    */
 224                                 s2 = rd->argintregs[s1];
 225                                 if (!IS_INMEMORY(var->flags))   {
 226                                         M_INTMOVE(s2, var->vv.regoff);
 227                                 } else {                             /* reg arg -> spilled    */
 228                                         M_LST(s2, REG_SP, var->vv.regoff * 8);
 229                                 }
 230                         } else {                                 /* stack arguments       */
 231                                 if (!IS_INMEMORY(var->flags)) {      /* stack arg -> register */
 232                                         M_LLD(var->vv.regoff, REG_SP, (cd->stackframesize + s1) * 8);
 233
 234                                 } else {                             /* stack arg -> spilled  */
 235                                         var->vv.regoff = cd->stackframesize + s1;
 236                                 }
 237                         }
 238
 239                 } else {                                     /* floating args         */
 240                         if (!md->params[p].inmemory) {           /* register arguments    */
 241                                 s2 = rd->argfltregs[s1];
 242                                 if (!IS_INMEMORY(var->flags)) {      /* reg arg -> register   */
 243                                         M_FLTMOVE(s2, var->vv.regoff);
 244                                 } else {                                         /* reg arg -> spilled    */
 245                                         M_DST(s2, REG_SP, var->vv.regoff * 8);
 246                                 }
 247
 248                         } else {                                 /* stack arguments       */
 249                                 if (!(var->flags & INMEMORY)) {      /* stack-arg -> register */
 250                                         M_DLD(var->vv.regoff, REG_SP, (cd->stackframesize + s1) * 8);
 251                                 } else {                             /* stack-arg -> spilled  */
 252                                         var->vv.regoff = cd->stackframesize + s1;
 253                                 }
 254                         }
 255                 }
 256         } /* end for */
 257
 258         /* save monitorenter argument */
 259
 260 #if defined(ENABLE_THREADS)
 261
 262         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
 263
 264                 /* stackoffset for argument used for LOCK_monitor_exit */
 265                 s1 = rd->memuse;
 266 #if !defined (NDEBUG)
 267                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 268                         M_AADD_IMM(REG_SP, -((LA_SIZE_IN_POINTERS + PA_SIZE_IN_POINTERS + ARG_CNT) * 8), REG_SP);
 269
 270                         for (p = 0; p < INT_ARG_CNT; p++)
 271                                 M_LST(rd->argintregs[p], REG_SP, LA_SIZE + PA_SIZE + p * 8);
 272
 273                         for (p = 0; p < FLT_ARG_CNT; p++)
 274                                 M_DST(rd->argfltregs[p], REG_SP, LA_SIZE + PA_SIZE + (INT_ARG_CNT + p) * 8);
 275
 276                         /* used for LOCK_monitor_exit, adopt size because we created another stackframe */
 277                         s1 += (LA_SIZE_IN_POINTERS + PA_SIZE_IN_POINTERS + ARG_CNT);
 278                 }
 279 #endif
 280                 p = dseg_addaddress(cd, LOCK_monitor_enter);
 281                 M_ALD(REG_ITMP3, REG_PV, p);
 282                 M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
 283                 M_MTCTR(REG_ITMP3);
 284
 285                 /* get or test the lock object */
 286
 287                 if (m->flags & ACC_STATIC) {
 288                         p = dseg_addaddress(cd, &m->class->object.header);
 289                         M_ALD(rd->argintregs[0], REG_PV, p);
 290                 }
 291                 else {
 292                         M_TST(rd->argintregs[0]);
 293                         M_BEQ(0);
 294                         codegen_add_nullpointerexception_ref(cd);
 295                 }
 296
 297                 M_AST(rd->argintregs[0], REG_SP, s1 * 8);       /* rd->memuse * 8 */
 298                 M_JSR;
 299 #if !defined (NDEBUG)
 300                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 301                         for (p = 0; p < INT_ARG_CNT; p++)
 302                                 M_LLD(rd->argintregs[p], REG_SP, LA_SIZE + PA_SIZE + p * 8);
 303
 304                         for (p = 0; p < FLT_ARG_CNT; p++)
 305                                 M_DLD(rd->argfltregs[p], REG_SP, LA_SIZE + PA_SIZE + (INT_ARG_CNT + p) * 8);
 306
 307                         M_AADD_IMM(REG_SP, (LA_SIZE_IN_POINTERS + PA_SIZE_IN_POINTERS + ARG_CNT) * 8, REG_SP);
 308                 }
 309 #endif
 310         }
 311 #endif
 312
 313         /* call trace function */
 314 #if !defined (NDEBUG)
 315         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
 316                 emit_verbosecall_enter(jd);
 317
 318         }
 319 #endif
 320
 321         /* end of header generation */
 322
 323         replacementpoint = jd->code->rplpoints;
 324
 325         /* walk through all basic blocks */
 326         for (bptr = jd->basicblocks; bptr != NULL; bptr = bptr->next) {
 327
 328                 bptr->mpc = (s4) (cd->mcodeptr - cd->mcodebase);
 329
 330                 if (bptr->flags >= BBREACHED) {
 331
 332                 /* branch resolving */
 333
 334                 {
 335                 branchref *brefs;
 336                 for (brefs = bptr->branchrefs; brefs != NULL; brefs = brefs->next) {
 337                         md_codegen_patch_branch(cd, brefs->branchpos, bptr->mpc);
 338                         }
 339                 }
 340
 341                 /* handle replacement points */
 342
 343 #if 0
 344                 if (bptr->bitflags & BBFLAG_REPLACEMENT) {
 345                         replacementpoint->pc = (u1*)(ptrint)bptr->mpc; /* will be resolved later */
 346
 347                         replacementpoint++;
 348                 }
 349 #endif
 350
 351                 /* copy interface registers to their destination */
 352
 353                 len = bptr->indepth;
 354                 MCODECHECK(64+len);
 355
 356 #if defined(ENABLE_LSRA)
 357                 if (opt_lsra) {
 358                         while (len) {
 359                                 len--;
 360                                 var = VAR(bptr->invars[len]);
 361                                 if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 362                                         /* d = reg_of_var(m, var, REG_ITMP1); */
 363                                         if (!(var->flags & INMEMORY))
 364                                                 d = var->vv.regoff;
 365                                         else
 366                                                 d = REG_ITMP1;
 367                                         M_INTMOVE(REG_ITMP1, d);
 368                                         emit_store(jd, NULL, var, d);
 369                                 }
 370                         }
 371                 } else {
 372 #endif
 373                 while (len) {
 374                         len--;
 375                         var = VAR(bptr->invars[len]);
 376                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 377                                 d = codegen_reg_of_var(0, var, REG_ITMP1);
 378                                 M_INTMOVE(REG_ITMP1, d);
 379                                 emit_store(jd, NULL, var, d);
 380                         }
 381                         else {
 382                                 assert((var->flags & INOUT));
 383                         }
 384                 }
 385
 386 #if defined(ENABLE_LSRA)
 387                 }
 388 #endif
 389                 /* walk through all instructions */
 390
 391                 len = bptr->icount;
 392                 currentline = 0;
 393
 394                 for (iptr = bptr->iinstr; len > 0; len--, iptr++) {
 395                         bool sign_ext = false;
 396                         if (iptr->line != currentline) {
 397                                 dseg_addlinenumber(cd, iptr->line);
 398                                 currentline = iptr->line;
 399                         }
 400
 401                         MCODECHECK(64);   /* an instruction usually needs < 64 words      */
 402
 403                         switch (iptr->opc) {
 404                         case ICMD_NOP:    /* ...  ==> ...                                 */
 405                         case ICMD_INLINE_START:
 406                         case ICMD_INLINE_END:
 407                                 break;
 408
 409                 case ICMD_CHECKNULL:  /* ..., objectref  ==> ..., objectref           */
 410
 411                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 412                         M_TST(s1);
 413                         M_BEQ(0);
 414                         codegen_add_nullpointerexception_ref(cd);
 415                         break;
 416
 417                 /* constant operations ************************************************/
 418
 419                 case ICMD_ICONST:     /* ...  ==> ..., constant                       */
 420
 421                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 422                         ICONST(d, iptr->sx.val.i);
 423                         emit_store_dst(jd, iptr, d);
 424                         break;
 425
 426                 case ICMD_LCONST:     /* ...  ==> ..., constant                       */
 427
 428                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 429                         LCONST(d, iptr->sx.val.l);
 430                         emit_store_dst(jd, iptr, d);
 431                         break;
 432
 433                 case ICMD_FCONST:     /* ...  ==> ..., constant                       */
 434
 435                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 436                         a = dseg_addfloat(cd, iptr->sx.val.f);
 437                         M_FLD(d, REG_PV, a);
 438                         emit_store_dst(jd, iptr, d);
 439                         break;
 440
 441                 case ICMD_DCONST:     /* ...  ==> ..., constant                       */
 442
 443                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 444                         a = dseg_adddouble(cd, iptr->sx.val.d);
 445                         M_DLD(d, REG_PV, a);
 446                         emit_store_dst(jd, iptr, d);
 447                         break;
 448
 449                 case ICMD_ACONST:     /* ...  ==> ..., constant                       */
 450                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 451                         disp = dseg_addaddress(cd, iptr->sx.val.anyptr);
 452
 453                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
 454                                 codegen_addpatchref(cd, PATCHER_aconst,
 455                                                                         iptr->sx.val.c.ref,
 456                                                                     disp);
 457
 458                                 if (opt_showdisassemble)
 459                                         M_NOP;
 460                         }
 461
 462                         M_ALD(d, REG_PV, disp);
 463                         emit_store_dst(jd, iptr, d);
 464                         break;
 465
 466
 467                 /* load/store/copy/move operations ************************************/
 468
 469                 case ICMD_ILOAD:      /* ...  ==> ..., content of local variable      */
 470                 case ICMD_ALOAD:      /* s1.localindex = local variable               */
 471                 case ICMD_LLOAD:
 472                 case ICMD_FLOAD:      /* ...  ==> ..., content of local variable      */
 473                 case ICMD_DLOAD:      /* ...  ==> ..., content of local variable      */
 474                 case ICMD_ISTORE:     /* ..., value  ==> ...                          */
 475                 case ICMD_ASTORE:     /* dst.localindex = local variable              */
 476                 case ICMD_LSTORE:
 477                 case ICMD_FSTORE:     /* ..., value  ==> ...                          */
 478                 case ICMD_DSTORE:     /* ..., value  ==> ...                          */
 479                 case ICMD_COPY:
 480                 case ICMD_MOVE:
 481
 482                         emit_copy(jd, iptr, VAROP(iptr->s1), VAROP(iptr->dst));
 483                         break;
 484
 485
 486                 /* pop operations *****************************************************/
 487
 488                 /* attention: double and longs are only one entry in CACAO ICMDs      */
 489
 490                 case ICMD_POP:        /* ..., value  ==> ...                          */
 491                 case ICMD_POP2:       /* ..., value, value  ==> ...                   */
 492
 493                         break;
 494
 495
 496                 /* integer operations *************************************************/
 497
 498                 case ICMD_INEG:       /* ..., value  ==> ..., - value                 */
 499                         sign_ext = true;
 500                 case ICMD_LNEG:
 501                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 502                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 503                         M_NEG(s1, d);
 504                         if (sign_ext) M_EXTSW(d, d);
 505                         emit_store_dst(jd, iptr, d);
 506                         break;
 507
 508
 509                 case ICMD_I2L:        /* ..., value  ==> ..., value                   */
 510
 511                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 512                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 513                         M_INTMOVE(s1, d);
 514                         emit_store_dst(jd, iptr, d);
 515                         break;
 516
 517                 case ICMD_L2I:        /* ..., value  ==> ..., value                   */
 518
 519                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 520                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 521                         M_ISEXT(s1, d);
 522                         emit_store_dst(jd, iptr, d);
 523                         break;
 524
 525                 case ICMD_INT2BYTE:   /* ..., value  ==> ..., value                   */
 526
 527                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 528                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 529                         M_BSEXT(s1, d);
 530                         emit_store_dst(jd, iptr, d);
 531                         break;
 532
 533                 case ICMD_INT2CHAR:   /* ..., value  ==> ..., value                   */
 534
 535                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 536                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 537                         M_CZEXT(s1, d);
 538                         emit_store_dst(jd, iptr, d);
 539                         break;
 540
 541                 case ICMD_INT2SHORT:  /* ..., value  ==> ..., value                   */
 542
 543                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 544                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 545                         M_SSEXT(s1, d);
 546                         emit_store_dst(jd, iptr, d);
 547                         break;
 548
 549
 550                 case ICMD_IADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 551
 552                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 553                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 554                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 555                         M_IADD(s1, s2, d);
 556                         M_EXTSW(d,d);
 557                         emit_store_dst(jd, iptr, d);
 558                         break;
 559
 560                 case ICMD_IINC:
 561                 case ICMD_IADDCONST:
 562
 563                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 564                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 565                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767)) {
 566                                 M_IADD_IMM(s1, iptr->sx.val.i, d);
 567                         } else {
 568                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 569                                 M_IADD(s1, REG_ITMP2, d);
 570                         }
 571                         M_EXTSW(d,d);
 572                         emit_store_dst(jd, iptr, d);
 573                         break;
 574
 575                 case ICMD_LADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 576
 577                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 578                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 579                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 580                         M_LADD(s1, s2, d);
 581                         emit_store_dst(jd, iptr, d);
 582                         break;
 583
 584                 case ICMD_LADDCONST:  /* ..., value  ==> ..., value + constant        */
 585                                       /* sx.val.l = constant                          */
 586
 587                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 588                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 589                         /* XXX check me */
 590                         if ((iptr->sx.val.l >= -32768) && (iptr->sx.val.l <= 32767)) {
 591                                 M_LADD_IMM(s1, iptr->sx.val.l, d);
 592                         } else {
 593                                 LCONST(REG_ITMP2, iptr->sx.val.l);
 594                                 M_LADD(s1, REG_ITMP2, d);
 595                         }
 596                         emit_store_dst(jd, iptr, d);
 597                         break;
 598
 599                 case ICMD_ISUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 600
 601                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 602                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 603                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 604                         M_SUB(s1, s2, d);
 605                         emit_store_dst(jd, iptr, d);
 606                         break;
 607
 608                 case ICMD_ISUBCONST:  /* ..., value  ==> ..., value + constant        */
 609                                       /* sx.val.i = constant                          */
 610
 611                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 612                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 613                         if ((iptr->sx.val.i >= -32767) && (iptr->sx.val.i <= 32768)) {
 614                                 M_IADD_IMM(s1, -iptr->sx.val.i, d);
 615                         } else {
 616                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 617                                 M_SUB(s1, REG_ITMP2, d);
 618                         }
 619                         M_EXTSW(d, d);
 620                         emit_store_dst(jd, iptr, d);
 621                         break;
 622
 623                 case ICMD_LSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 624
 625                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 626                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 627                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 628                         M_SUB(s1, s2, d);
 629                         emit_store_dst(jd, iptr, d);
 630                         break;
 631
 632                 case ICMD_LSUBCONST:  /* ..., value  ==> ..., value - constant        */
 633                                       /* sx.val.l = constant                          */
 634
 635                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 636                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 637                         /* XXX check me */
 638                         if ((iptr->sx.val.l >= -32767) && (iptr->sx.val.l <= 32767)) {
 639                                 M_LADD_IMM(s1, -iptr->sx.val.l, d);
 640                         } else {
 641                                 LCONST(REG_ITMP2, iptr->sx.val.l);
 642                                 M_SUB(s1, REG_ITMP2, d);
 643                         }
 644                         emit_store_dst(jd, iptr, d);
 645                         break;
 646
 647                 case ICMD_IDIV:
 648                         sign_ext = true;
 649                 case ICMD_LDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 650
 651                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 652                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 653                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 654                         M_TST(s2);
 655                         M_BEQ(0);
 656                         codegen_add_arithmeticexception_ref(cd);
 657
 658                         M_DIV(s1, s2, d);
 659                         /* we need to test if divident was 0x8000000000000, bit OV is set in XER in this case */
 660                         /* we only need to check this if we did a LDIV, not for IDIV */
 661                         if (!sign_ext)  {
 662                                 M_MFXER(REG_ITMP2);
 663                                 M_ANDIS(REG_ITMP2, 0x4000, REG_ITMP2);  /* test OV */
 664                                 M_BLE(1);
 665                                 M_MOV(s1, d);                           /* java specs says result == dividend */
 666                         }
 667                         if (sign_ext) M_EXTSW(d, d);
 668                         emit_store_dst(jd, iptr, d);
 669                         break;
 670
 671                 case ICMD_IREM:
 672                         sign_ext = true;
 673                 case ICMD_LREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 674                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 675                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 676                         M_TST(s2);
 677                         M_BEQ(0);
 678                         codegen_add_arithmeticexception_ref(cd);
 679
 680                         M_DIV(s1, s2,  REG_ITMP3);
 681                         /* we need to test if divident was 0x8000000000000, bit OV is set in XER in this case */
 682                         /* we only need to check this if we did a LDIV, not for IDIV */
 683                         if (!sign_ext)  {
 684                                 M_MFXER(REG_ITMP2);
 685                                 M_ANDIS(REG_ITMP2, 0x4000, REG_ITMP2);  /* test OV */
 686                                 M_BLE(2);
 687                                 LCONST(REG_ITMP3, 0);                   /* result == 0 in this case */
 688                                 M_BR(2);
 689                         }
 690                         M_MUL(REG_ITMP3, s2, REG_ITMP2);
 691                         M_SUB(s1, REG_ITMP2,  REG_ITMP3);
 692                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 693
 694                         M_MOV(REG_ITMP3, d);
 695                         emit_store_dst(jd, iptr, REG_ITMP1);
 696                         break;
 697
 698
 699                 case ICMD_IMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 700                         sign_ext = true;
 701                 case ICMD_LMUL:
 702                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 703                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 704                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 705                         M_MUL(s1, s2, d);
 706                         if (sign_ext) M_EXTSW(d, d);
 707                         emit_store_dst(jd, iptr, d);
 708                         break;
 709
 710                 case ICMD_IMULCONST:  /* ..., value  ==> ..., value * constant        */
 711                                       /* sx.val.i = constant                          */
 712
 713                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 714                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 715                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767))
 716                                 M_MUL_IMM(s1, iptr->sx.val.i, d);
 717                         else {
 718                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 719                                 M_MUL(s1, REG_ITMP3, d);
 720                         }
 721                         M_EXTSW(d, d);
 722                         emit_store_dst(jd, iptr, d);
 723                         break;
 724                 case ICMD_LMULCONST:
 725                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 726                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 727                         if ((iptr->sx.val.l >= -32767) && (iptr->sx.val.l <= 32767))
 728                                 M_MUL_IMM(s1, iptr->sx.val.l, d);
 729                         else {
 730                                 LCONST(REG_ITMP3, iptr->sx.val.l);
 731                                 M_MUL(s1, REG_ITMP3, d);
 732                         }
 733                         emit_store_dst(jd, iptr, d);
 734                         break;
 735
 736                 case ICMD_IDIVPOW2:   /* ..., value  ==> ..., value << constant       */
 737
 738                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 739                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 740                         M_SRA_IMM(s1, iptr->sx.val.i, d);
 741                         M_ADDZE(d, d);
 742                         emit_store_dst(jd, iptr, d);
 743                         break;
 744
 745                 case ICMD_ISHL:       /* ..., val1, val2  ==> ..., val1 << val2       */
 746
 747                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 748                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 749                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 750                         M_AND_IMM(s2, 0x1f, REG_ITMP3);
 751                         M_SLL(s1, REG_ITMP3, d);
 752                         M_EXTSW(d, d);
 753                         emit_store_dst(jd, iptr, d);
 754                         break;
 755
 756                 case ICMD_ISHLCONST:  /* ..., value  ==> ..., value << constant       */
 757                                       /* sx.val.i = constant                             */
 758
 759                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 760                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 761                         M_SLL_IMM(s1, iptr->sx.val.i & 0x1f, d);
 762                         M_EXTSW(d,d);
 763                         emit_store_dst(jd, iptr, d);
 764                         break;
 765
 766                 case ICMD_ISHR:       /* ..., val1, val2  ==> ..., val1 >> val2       */
 767
 768                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 769                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 770                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 771                         M_AND_IMM(s2, 0x1f, REG_ITMP3);
 772                         M_SRA(s1, REG_ITMP3, d);
 773                         emit_store_dst(jd, iptr, d);
 774                         break;
 775
 776                 case ICMD_ISHRCONST:  /* ..., value  ==> ..., value >> constant       */
 777                                       /* sx.val.i = constant                             */
 778
 779                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 780                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 781                         M_SRA_IMM(s1, iptr->sx.val.i & 0x1f, d);
 782                         emit_store_dst(jd, iptr, d);
 783                         break;
 784
 785                 case ICMD_IUSHR:      /* ..., 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_ITMP2);
 790                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 791                         M_SRL(s1, REG_ITMP2, d);
 792                         emit_store_dst(jd, iptr, d);
 793                         break;
 794
 795                 case ICMD_IUSHRCONST: /* ..., value  ==> ..., value >>> constant      */
 796                                       /* sx.val.i = constant                             */
 797
 798                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 799                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 800                         if (iptr->sx.val.i & 0x1f) {
 801                                 M_SRL_IMM(s1, iptr->sx.val.i & 0x1f, d);
 802                         } else {
 803                                 M_INTMOVE(s1, d);
 804                         }
 805                         emit_store_dst(jd, iptr, d);
 806                         break;
 807
 808                 case ICMD_IAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 809                 case ICMD_LAND:
 810
 811                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 812                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 813                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 814                         M_AND(s1, s2, d);
 815                         emit_store_dst(jd, iptr, d);
 816                         break;
 817
 818                 case ICMD_IANDCONST:  /* ..., value  ==> ..., value & constant        */
 819                                       /* sx.val.i = constant                          */
 820
 821                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 822                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 823                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535)) {
 824                                 M_AND_IMM(s1, iptr->sx.val.i, d);
 825                                 }
 826                         /*
 827                         else if (iptr->sx.val.i == 0xffffff) {
 828                                 M_RLWINM(s1, 0, 8, 31, d);
 829                                 }
 830                         */
 831                         else {
 832                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 833                                 M_AND(s1, REG_ITMP3, d);
 834                         }
 835                         emit_store_dst(jd, iptr, d);
 836                         break;
 837
 838                 case ICMD_LANDCONST:  /* ..., value  ==> ..., value & constant        */
 839                                       /* sx.val.l = constant                          */
 840
 841                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 842                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 843                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
 844                                 M_AND_IMM(s1, iptr->sx.val.l, d);
 845                         /*
 846                         else if (iptr->sx.val.l == 0xffffff) {
 847                                 M_RLWINM(s1, 0, 8, 31, d);
 848                                 }
 849                         */
 850                         else {
 851                                 LCONST(REG_ITMP3, iptr->sx.val.l);
 852                                 M_AND(s1, REG_ITMP3, d);
 853                         }
 854                         emit_store_dst(jd, iptr, d);
 855                         break;
 856
 857                 case ICMD_IREMPOW2:   /* ..., value  ==> ..., value % constant        */
 858                                       /* sx.val.i = constant                             */
 859                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 860                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 861                         M_MOV(s1, REG_ITMP2);
 862                         M_CMPI(s1, 0);
 863                         M_BGE(1 + 2*(iptr->sx.val.i >= 32768));
 864                         if (iptr->sx.val.i >= 32768) {
 865                                 M_ADDIS(REG_ZERO, iptr->sx.val.i >> 16, REG_ITMP2);
 866                                 M_OR_IMM(REG_ITMP2, iptr->sx.val.i, REG_ITMP2);
 867                                 M_IADD(s1, REG_ITMP2, REG_ITMP2);
 868                         } else {
 869                                 M_IADD_IMM(s1, iptr->sx.val.i, REG_ITMP2);
 870                         }
 871                         {
 872                                 int b=0, m = iptr->sx.val.i;
 873                                 while (m >>= 1)
 874                                         ++b;
 875                                 M_RLWINM(REG_ITMP2, 0, 0, 30-b, REG_ITMP2);
 876                         }
 877                         M_SUB(s1, REG_ITMP2, d);
 878                         M_EXTSW(d, d);
 879                         emit_store_dst(jd, iptr, d);
 880                         break;
 881
 882                 case ICMD_IOR:        /* ..., val1, val2  ==> ..., val1 | val2        */
 883                 case ICMD_LOR:
 884
 885                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 886                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 887                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 888                         M_OR(s1, s2, d);
 889                         emit_store_dst(jd, iptr, d);
 890                         break;
 891
 892                 case ICMD_IORCONST:   /* ..., value  ==> ..., value | constant        */
 893                                       /* sx.val.i = constant                          */
 894
 895                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 896                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 897                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
 898                                 M_OR_IMM(s1, iptr->sx.val.i, d);
 899                         else {
 900                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 901                                 M_OR(s1, REG_ITMP3, d);
 902                         }
 903                         emit_store_dst(jd, iptr, d);
 904                         break;
 905
 906                 case ICMD_LORCONST:   /* ..., value  ==> ..., value | constant        */
 907                                       /* sx.val.l = constant                          */
 908
 909                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 910                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 911                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
 912                                 M_OR_IMM(s1, iptr->sx.val.l, d);
 913                         else {
 914                                 LCONST(REG_ITMP3, iptr->sx.val.l);
 915                                 M_OR(s1, REG_ITMP3, d);
 916                         }
 917                         emit_store_dst(jd, iptr, d);
 918                         break;
 919
 920
 921                 case ICMD_IXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
 922                 case ICMD_LXOR:
 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_XOR(s1, s2, d);
 928                         emit_store_dst(jd, iptr, d);
 929                         break;
 930
 931                 case ICMD_IXORCONST:  /* ..., value  ==> ..., value ^ constant        */
 932                                       /* sx.val.i = constant                          */
 933
 934                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 935                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 936                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
 937                                 M_XOR_IMM(s1, iptr->sx.val.i, d);
 938                         else {
 939                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 940                                 M_XOR(s1, REG_ITMP3, d);
 941                         }
 942                         emit_store_dst(jd, iptr, d);
 943                         break;
 944
 945                 case ICMD_LXORCONST:  /* ..., value  ==> ..., value ^ constant        */
 946                                       /* sx.val.l = constant                          */
 947
 948                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 949                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 950                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
 951                                 M_XOR_IMM(s1, iptr->sx.val.l, d);
 952                         else {
 953                                 LCONST(REG_ITMP3, iptr->sx.val.l);
 954                                 M_XOR(s1, REG_ITMP3, d);
 955                         }
 956                         emit_store_dst(jd, iptr, d);
 957                         break;
 958
 959                 case ICMD_LCMP:       /* ..., val1, val2  ==> ..., val1 cmp val2      */
 960
 961                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 962                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 963                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 964                         /* XXX implement me!!! */
 965                         emit_store_dst(jd, iptr, d);
 966                         break;
 967                         break;
 968
 969
 970                 /* floating operations ************************************************/
 971
 972                 case ICMD_FNEG:       /* ..., value  ==> ..., - value                 */
 973
 974                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 975                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
 976                         M_FMOVN(s1, d);
 977                         emit_store_dst(jd, iptr, d);
 978                         break;
 979
 980                 case ICMD_DNEG:       /* ..., value  ==> ..., - value                 */
 981
 982                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 983                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
 984                         M_FMOVN(s1, d);
 985                         emit_store_dst(jd, iptr, d);
 986                         break;
 987
 988                 case ICMD_FADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 989
 990                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 991                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 992                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
 993                         M_FADD(s1, s2, d);
 994                         emit_store_dst(jd, iptr, d);
 995                         break;
 996
 997                 case ICMD_DADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 998
 999                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1000                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1001                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1002                         M_DADD(s1, s2, d);
1003                         emit_store_dst(jd, iptr, d);
1004                         break;
1005
1006                 case ICMD_FSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
1007
1008                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1009                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1010                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1011                         M_FSUB(s1, s2, d);
1012                         emit_store_dst(jd, iptr, d);
1013                         break;
1014
1015                 case ICMD_DSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
1016
1017                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1018                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1019                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1020                         M_DSUB(s1, s2, d);
1021                         emit_store_dst(jd, iptr, d);
1022                         break;
1023
1024                 case ICMD_FMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1025
1026                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1027                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1028                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1029                         M_FMUL(s1, s2, d);
1030                         emit_store_dst(jd, iptr, d);
1031                         break;
1032
1033                 case ICMD_DMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1034
1035                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1036                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1037                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1038                         M_DMUL(s1, s2, d);
1039                         emit_store_dst(jd, iptr, d);
1040                         break;
1041
1042                 case ICMD_FDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1043
1044                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1045                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1046                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1047                         M_FDIV(s1, s2, d);
1048                         emit_store_dst(jd, iptr, d);
1049                         break;
1050
1051                 case ICMD_DDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1052
1053                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1054                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1055                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1056                         M_DDIV(s1, s2, d);
1057                         emit_store_dst(jd, iptr, d);
1058                         break;
1059
1060                 case ICMD_F2I:       /* ..., value  ==> ..., (int) value              */
1061                 case ICMD_D2I:
1062
1063                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1064                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1065                         M_CLR(d);
1066                         disp = dseg_addfloat(cd, 0.0);
1067                         M_FLD(REG_FTMP2, REG_PV, disp);
1068                         M_FCMPU(s1, REG_FTMP2);
1069                         M_BNAN(4);
1070                         disp = dseg_adds4(cd, 0);
1071                         M_CVTDL_C(s1, REG_FTMP1);
1072                         M_LDA(REG_ITMP1, REG_PV, disp);
1073                         M_STFIWX(REG_FTMP1, 0, REG_ITMP1);
1074                         M_ILD(d, REG_PV, disp);
1075                         emit_store_dst(jd, iptr, d);
1076                         break;
1077
1078                 case ICMD_F2D:       /* ..., value  ==> ..., (double) value           */
1079
1080                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1081                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1082                         M_FLTMOVE(s1, d);
1083                         emit_store_dst(jd, iptr, d);
1084                         break;
1085
1086                 case ICMD_D2F:       /* ..., value  ==> ..., (double) value           */
1087
1088                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1089                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1090                         M_CVTDF(s1, d);
1091                         emit_store_dst(jd, iptr, d);
1092                         break;
1093
1094                 case ICMD_FCMPL:      /* ..., val1, val2  ==> ..., val1 fcmpg val2    */
1095                 case ICMD_DCMPL:      /* == => 0, < => 1, > => -1                     */
1096
1097
1098                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1099                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1100                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1101                         M_FCMPU(s2, s1);
1102                         M_IADD_IMM(REG_ZERO, -1, d);
1103                         M_BNAN(4);
1104                         M_BGT(3);
1105                         M_IADD_IMM(REG_ZERO, 0, d);
1106                         M_BGE(1);
1107                         M_IADD_IMM(REG_ZERO, 1, d);
1108                         emit_store_dst(jd, iptr, d);
1109                         break;
1110
1111                 case ICMD_FCMPG:      /* ..., val1, val2  ==> ..., val1 fcmpl val2    */
1112                 case ICMD_DCMPG:      /* == => 0, < => 1, > => -1                     */
1113
1114                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1115                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1116                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1117                         M_FCMPU(s1, s2);
1118                         M_IADD_IMM(REG_ZERO, 1, d);
1119                         M_BNAN(4);
1120                         M_BGT(3);
1121                         M_IADD_IMM(REG_ZERO, 0, d);
1122                         M_BGE(1);
1123                         M_IADD_IMM(REG_ZERO, -1, d);
1124                         emit_store_dst(jd, iptr, d);
1125                         break;
1126
1127                 case ICMD_IF_FCMPEQ:    /* ..., value, value ==> ...                  */
1128                 case ICMD_IF_DCMPEQ:
1129
1130                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1131                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1132                         M_FCMPU(s1, s2);
1133                         M_BNAN(1);
1134                         M_BEQ(0);
1135                         codegen_addreference(cd, iptr->dst.block);
1136                         break;
1137
1138                 case ICMD_IF_FCMPNE:    /* ..., value, value ==> ...                  */
1139                 case ICMD_IF_DCMPNE:
1140
1141                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1142                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1143                         M_FCMPU(s1, s2);
1144                         M_BNAN(0);
1145                         codegen_addreference(cd, iptr->dst.block);
1146                         M_BNE(0);
1147                         codegen_addreference(cd, iptr->dst.block);
1148                         break;
1149
1150
1151                 case ICMD_IF_FCMPL_LT:  /* ..., value, value ==> ...                  */
1152                 case ICMD_IF_DCMPL_LT:
1153
1154                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1155                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1156                         M_FCMPU(s1, s2);
1157                         M_BNAN(0);
1158                         codegen_addreference(cd, iptr->dst.block);
1159                         M_BLT(0);
1160                         codegen_addreference(cd, iptr->dst.block);
1161                         break;
1162
1163                 case ICMD_IF_FCMPL_GT:  /* ..., value, value ==> ...                  */
1164                 case ICMD_IF_DCMPL_GT:
1165
1166                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1167                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1168                         M_FCMPU(s1, s2);
1169                         M_BNAN(1);
1170                         M_BGT(0);
1171                         codegen_addreference(cd, iptr->dst.block);
1172                         break;
1173
1174                 case ICMD_IF_FCMPL_LE:  /* ..., value, value ==> ...                  */
1175                 case ICMD_IF_DCMPL_LE:
1176
1177                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1178                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1179                         M_FCMPU(s1, s2);
1180                         M_BNAN(0);
1181                         codegen_addreference(cd, iptr->dst.block);
1182                         M_BLE(0);
1183                         codegen_addreference(cd, iptr->dst.block);
1184                         break;
1185
1186                 case ICMD_IF_FCMPL_GE:  /* ..., value, value ==> ...                  */
1187                 case ICMD_IF_DCMPL_GE:
1188
1189                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1190                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1191                         M_FCMPU(s1, s2);
1192                         M_BNAN(1);
1193                         M_BGE(0);
1194                         codegen_addreference(cd, iptr->dst.block);
1195                         break;
1196
1197                 case ICMD_IF_FCMPG_LT:  /* ..., value, value ==> ...                  */
1198                 case ICMD_IF_DCMPG_LT:
1199
1200                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1201                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1202                         M_FCMPU(s1, s2);
1203                         M_BNAN(1);
1204                         M_BLT(0);
1205                         codegen_addreference(cd, iptr->dst.block);
1206                         break;
1207
1208                 case ICMD_IF_FCMPG_GT:  /* ..., value, value ==> ...                  */
1209                 case ICMD_IF_DCMPG_GT:
1210
1211                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1212                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1213                         M_FCMPU(s1, s2);
1214                         M_BNAN(0);
1215                         codegen_addreference(cd, iptr->dst.block);
1216                         M_BGT(0);
1217                         codegen_addreference(cd, iptr->dst.block);
1218                         break;
1219
1220                 case ICMD_IF_FCMPG_LE:  /* ..., value, value ==> ...                  */
1221                 case ICMD_IF_DCMPG_LE:
1222
1223                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1224                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1225                         M_FCMPU(s1, s2);
1226                         M_BNAN(1);
1227                         M_BLE(0);
1228                         codegen_addreference(cd, iptr->dst.block);
1229                         break;
1230
1231                 case ICMD_IF_FCMPG_GE:  /* ..., value, value ==> ...                  */
1232                 case ICMD_IF_DCMPG_GE:
1233
1234                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1235                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1236                         M_FCMPU(s1, s2);
1237                         M_BNAN(0);
1238                         codegen_addreference(cd, iptr->dst.block);
1239                         M_BGE(0);
1240                         codegen_addreference(cd, iptr->dst.block);
1241                         break;
1242
1243
1244                 /* memory operations **************************************************/
1245
1246                 case ICMD_ARRAYLENGTH: /* ..., arrayref  ==> ..., length              */
1247
1248                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1249                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1250                         gen_nullptr_check(s1);
1251                         M_ILD(d, s1, OFFSET(java_arrayheader, size));
1252                         emit_store_dst(jd, iptr, d);
1253                         break;
1254
1255                 case ICMD_BALOAD:     /* ..., arrayref, index  ==> ..., value         */
1256
1257                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1258                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1259                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1260                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1261                                 gen_nullptr_check(s1);
1262                                 gen_bound_check;
1263                         }
1264                         M_IADD_IMM(s2, OFFSET(java_bytearray, data[0]), REG_ITMP2);
1265                         M_LBZX(d, s1, REG_ITMP2);
1266                         M_BSEXT(d, d);
1267                         emit_store_dst(jd, iptr, d);
1268                         break;
1269
1270                 case ICMD_CALOAD:     /* ..., arrayref, index  ==> ..., value         */
1271
1272                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1273                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1274                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1275                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1276                                 gen_nullptr_check(s1);
1277                                 gen_bound_check;
1278                         }
1279                         M_SLL_IMM(s2, 1, REG_ITMP2);
1280                         M_IADD_IMM(REG_ITMP2, OFFSET(java_chararray, data[0]), REG_ITMP2);
1281                         M_LHAX(d, s1, REG_ITMP2);
1282                         emit_store_dst(jd, iptr, d);
1283                         break;
1284
1285                 case ICMD_SALOAD:     /* ..., arrayref, index  ==> ..., value         */
1286
1287                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1288                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1289                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1290                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1291                                 gen_nullptr_check(s1);
1292                                 gen_bound_check;
1293                         }
1294                         M_SLL_IMM(s2, 1, REG_ITMP2);
1295                         M_IADD_IMM(REG_ITMP2, OFFSET(java_shortarray, data[0]), REG_ITMP2);
1296                         M_LHAX(d, s1, REG_ITMP2);
1297                         emit_store_dst(jd, iptr, d);
1298                         break;
1299
1300                 case ICMD_IALOAD:     /* ..., arrayref, index  ==> ..., value         */
1301
1302                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1303                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1304                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1305                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1306                                 gen_nullptr_check(s1);
1307                                 gen_bound_check;
1308                         }
1309                         M_SLL_IMM(s2, 2, REG_ITMP2);
1310                         M_IADD_IMM(REG_ITMP2, OFFSET(java_intarray, data[0]), REG_ITMP2);
1311                         M_LWZX(d, s1, REG_ITMP2);
1312                         emit_store_dst(jd, iptr, d);
1313                         break;
1314
1315                 case ICMD_LALOAD:     /* ..., arrayref, index  ==> ..., value         */
1316
1317                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1318                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1319                         d = codegen_reg_of_dst(jd, iptr, PACK_REGS(REG_ITMP2, REG_ITMP1));
1320                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1321                                 gen_nullptr_check(s1);
1322                                 gen_bound_check;
1323                         }
1324                         M_SLL_IMM(s2, 3, REG_ITMP2);
1325                         M_IADD(s1, REG_ITMP2, REG_ITMP2);
1326                         M_LLD_INTERN(d, REG_ITMP2, OFFSET(java_longarray, data[0]));
1327                         emit_store_dst(jd, iptr, d);
1328                         break;
1329
1330                 case ICMD_FALOAD:     /* ..., arrayref, index  ==> ..., value         */
1331
1332                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1333                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1334                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1335                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1336                                 gen_nullptr_check(s1);
1337                                 gen_bound_check;
1338                         }
1339                         M_SLL_IMM(s2, 2, REG_ITMP2);
1340                         M_IADD_IMM(REG_ITMP2, OFFSET(java_floatarray, data[0]), REG_ITMP2);
1341                         M_LFSX(d, s1, REG_ITMP2);
1342                         emit_store_dst(jd, iptr, d);
1343                         break;
1344
1345                 case ICMD_DALOAD:     /* ..., arrayref, index  ==> ..., value         */
1346
1347                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1348                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1349                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1350                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1351                                 gen_nullptr_check(s1);
1352                                 gen_bound_check;
1353                         }
1354                         M_SLL_IMM(s2, 3, REG_ITMP2);
1355                         M_IADD_IMM(REG_ITMP2, OFFSET(java_doublearray, data[0]), REG_ITMP2);
1356                         M_LFDX(d, s1, REG_ITMP2);
1357                         emit_store_dst(jd, iptr, d);
1358                         break;
1359
1360                 case ICMD_AALOAD:     /* ..., arrayref, index  ==> ..., value         */
1361
1362                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1363                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1364                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1365                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1366                                 gen_nullptr_check(s1);
1367                                 gen_bound_check;
1368                         }
1369                         M_SLL_IMM(s2, 3, REG_ITMP2);
1370                         M_IADD_IMM(REG_ITMP2, OFFSET(java_objectarray, data[0]), REG_ITMP2);
1371                         M_ALDX(d, s1, REG_ITMP2);
1372                         emit_store_dst(jd, iptr, d);
1373                         break;
1374
1375
1376                 case ICMD_BASTORE:    /* ..., arrayref, index, value  ==> ...         */
1377
1378                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1379                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1380                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1381                                 gen_nullptr_check(s1);
1382                                 gen_bound_check;
1383                         }
1384                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1385                         M_IADD_IMM(s2, OFFSET(java_bytearray, data[0]), REG_ITMP2);
1386                         M_STBX(s3, s1, REG_ITMP2);
1387                         break;
1388
1389                 case ICMD_CASTORE:    /* ..., arrayref, index, value  ==> ...         */
1390
1391                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1392                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1393                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1394                                 gen_nullptr_check(s1);
1395                                 gen_bound_check;
1396                         }
1397                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1398                         M_SLL_IMM(s2, 1, REG_ITMP2);
1399                         M_IADD_IMM(REG_ITMP2, OFFSET(java_chararray, data[0]), REG_ITMP2);
1400                         M_STHX(s3, s1, REG_ITMP2);
1401                         break;
1402
1403                 case ICMD_SASTORE:    /* ..., arrayref, index, value  ==> ...         */
1404
1405                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1406                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1407                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1408                                 gen_nullptr_check(s1);
1409                                 gen_bound_check;
1410                         }
1411                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1412                         M_SLL_IMM(s2, 1, REG_ITMP2);
1413                         M_IADD_IMM(REG_ITMP2, OFFSET(java_shortarray, data[0]), REG_ITMP2);
1414                         M_STHX(s3, s1, REG_ITMP2);
1415                         break;
1416
1417                 case ICMD_IASTORE:    /* ..., arrayref, index, value  ==> ...         */
1418
1419                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1420                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1421                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1422                                 gen_nullptr_check(s1);
1423                                 gen_bound_check;
1424                         }
1425                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1426                         M_SLL_IMM(s2, 2, REG_ITMP2);
1427                         M_IADD_IMM(REG_ITMP2, OFFSET(java_intarray, data[0]), REG_ITMP2);
1428                         M_STWX(s3, s1, REG_ITMP2);
1429                         break;
1430
1431                 case ICMD_LASTORE:    /* ..., arrayref, index, value  ==> ...         */
1432
1433                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1434                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1435                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1436                                 gen_nullptr_check(s1);
1437                                 gen_bound_check;
1438                         }
1439                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1440                         M_SLL_IMM(s2, 3, REG_ITMP2);
1441                         M_IADD_IMM(REG_ITMP2, OFFSET(java_longarray, data[0]), REG_ITMP2);
1442                         M_LSTX(s3, s1, REG_ITMP2);
1443                         break;
1444
1445                 case ICMD_FASTORE:    /* ..., arrayref, index, value  ==> ...         */
1446
1447                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1448                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1449                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1450                                 gen_nullptr_check(s1);
1451                                 gen_bound_check;
1452                         }
1453                         s3 = emit_load_s3(jd, iptr, REG_FTMP3);
1454                         M_SLL_IMM(s2, 2, REG_ITMP2);
1455                         M_IADD_IMM(REG_ITMP2, OFFSET(java_floatarray, data[0]), REG_ITMP2);
1456                         M_STFSX(s3, s1, REG_ITMP2);
1457                         break;
1458
1459                 case ICMD_DASTORE:    /* ..., arrayref, index, value  ==> ...         */
1460
1461                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1462                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1463                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1464                                 gen_nullptr_check(s1);
1465                                 gen_bound_check;
1466                         }
1467                         s3 = emit_load_s3(jd, iptr, REG_FTMP3);
1468                         M_SLL_IMM(s2, 3, REG_ITMP2);
1469                         M_IADD_IMM(REG_ITMP2, OFFSET(java_doublearray, data[0]), REG_ITMP2);
1470                         M_STFDX(s3, s1, REG_ITMP2);
1471                         break;
1472
1473                 case ICMD_AASTORE:    /* ..., arrayref, index, value  ==> ...         */
1474
1475                         s1 = emit_load_s1(jd, iptr, rd->argintregs[0]);
1476                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1477                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1478                                 gen_nullptr_check(s1);
1479                                 gen_bound_check;
1480                         }
1481                         s3 = emit_load_s3(jd, iptr, rd->argintregs[1]);
1482
1483                         disp = dseg_addaddress(cd, BUILTIN_canstore);
1484                         M_ALD(REG_ITMP3, REG_PV, disp);
1485                         M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
1486                         M_MTCTR(REG_ITMP3);
1487
1488                         M_INTMOVE(s1, rd->argintregs[0]);
1489                         M_INTMOVE(s3, rd->argintregs[1]);
1490
1491                         M_JSR;
1492                         M_TST(REG_RESULT);
1493                         M_BEQ(0);
1494                         codegen_add_arraystoreexception_ref(cd);
1495
1496                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1497                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1498                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1499                         M_SLL_IMM(s2, 3, REG_ITMP2);
1500                         M_IADD_IMM(REG_ITMP2, OFFSET(java_objectarray, data[0]), REG_ITMP2);
1501                         M_ASTX(s3, s1, REG_ITMP2);
1502                         break;
1503
1504
1505                 case ICMD_GETSTATIC:  /* ...  ==> ..., value                          */
1506
1507                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1508                                 uf = iptr->sx.s23.s3.uf;
1509
1510                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1511                                 disp = dseg_addaddress(cd, NULL);
1512
1513                                 codegen_addpatchref(cd, PATCHER_get_putstatic,
1514                                                                         iptr->sx.s23.s3.uf, disp);
1515
1516                                 if (opt_showdisassemble)
1517                                         M_NOP;
1518
1519                         } else {
1520                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1521
1522                                 fieldtype = fi->type;
1523                                 disp = dseg_addaddress(cd, &(fi->value));
1524
1525                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1526                                         codegen_addpatchref(cd, PATCHER_clinit, fi->class, disp);
1527
1528                                         if (opt_showdisassemble)
1529                                                 M_NOP;
1530                                 }
1531                         }
1532
1533                         M_ALD(REG_ITMP1, REG_PV, disp);
1534                         switch (fieldtype) {
1535                         case TYPE_INT:
1536                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1537                                 M_ILD_INTERN(d, REG_ITMP1, 0);
1538                                 break;
1539                         case TYPE_LNG:
1540                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1541                                 M_LLD(d, REG_ITMP1, 0);
1542                                 break;
1543                         case TYPE_ADR:
1544                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1545                                 M_ALD_INTERN(d, REG_ITMP1, 0);
1546                                 break;
1547                         case TYPE_FLT:
1548                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1549                                 M_FLD_INTERN(d, REG_ITMP1, 0);
1550                                 break;
1551                         case TYPE_DBL:
1552                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1553                                 M_DLD_INTERN(d, REG_ITMP1, 0);
1554                                 break;
1555                         }
1556                         emit_store_dst(jd, iptr, d);
1557                         break;
1558
1559                 case ICMD_PUTSTATIC:  /* ..., value  ==> ...                          */
1560
1561
1562                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1563                                 uf = iptr->sx.s23.s3.uf;
1564
1565                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1566                                 disp = dseg_addaddress(cd, NULL);
1567
1568                                 codegen_addpatchref(cd, PATCHER_get_putstatic,
1569                                                                         iptr->sx.s23.s3.uf, disp);
1570
1571                                 if (opt_showdisassemble)
1572                                         M_NOP;
1573
1574                         } else {
1575                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1576
1577                                 fieldtype = fi->type;
1578                                 disp = dseg_addaddress(cd, &(fi->value));
1579
1580                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1581                                         codegen_addpatchref(cd, PATCHER_clinit, fi->class, disp);
1582
1583                                         if (opt_showdisassemble)
1584                                                 M_NOP;
1585                                 }
1586                         }
1587
1588                         M_ALD(REG_ITMP1, REG_PV, disp);
1589                         switch (fieldtype) {
1590                         case TYPE_INT:
1591                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1592                                 M_IST_INTERN(s1, REG_ITMP1, 0);
1593                                 break;
1594                         case TYPE_LNG:
1595                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1596                                 M_LST_INTERN(s1, REG_ITMP1, 0);
1597                                 break;
1598                         case TYPE_ADR:
1599                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1600                                 M_AST_INTERN(s1, REG_ITMP1, 0);
1601                                 break;
1602                         case TYPE_FLT:
1603                                 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1604                                 M_FST_INTERN(s1, REG_ITMP1, 0);
1605                                 break;
1606                         case TYPE_DBL:
1607                                 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1608                                 M_DST_INTERN(s1, REG_ITMP1, 0);
1609                                 break;
1610                         }
1611                         break;
1612
1613
1614                 case ICMD_GETFIELD:   /* ...  ==> ..., value                          */
1615
1616                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1617                         gen_nullptr_check(s1);
1618
1619                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1620                                 uf = iptr->sx.s23.s3.uf;
1621                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1622                                 disp = 0;
1623
1624                                 codegen_addpatchref(cd, PATCHER_get_putfield, uf, 0);
1625
1626                                 if (opt_showdisassemble)
1627                                         M_NOP;
1628
1629                         } else {
1630                                 fi = iptr->sx.s23.s3.fmiref->p.field;
1631                                 fieldtype = fi->type;
1632                                 disp = fi->offset;
1633                         }
1634
1635                         switch (fieldtype) {
1636                         case TYPE_INT:
1637                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1638                                 M_ILD(d, s1, disp);
1639                                 break;
1640                         case TYPE_LNG:
1641                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1642                                 M_LLD(d, s1, disp);
1643                                 break;
1644                         case TYPE_ADR:
1645                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1646                                 M_ALD(d, s1, disp);
1647                                 break;
1648                         case TYPE_FLT:
1649                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1650                                 M_FLD(d, s1, disp);
1651                                 break;
1652                         case TYPE_DBL:
1653                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1654                                 M_DLD(d, s1, disp);
1655                                 break;
1656                         }
1657                         emit_store_dst(jd, iptr, d);
1658                         break;
1659
1660                 case ICMD_PUTFIELD:   /* ..., value  ==> ...                          */
1661
1662                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1663                         gen_nullptr_check(s1);
1664
1665                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1666                                 uf        = iptr->sx.s23.s3.uf;
1667                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1668                                 disp      = 0;
1669                         }
1670                         else {
1671                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1672                                 fieldtype = fi->type;
1673                                 disp      = fi->offset;
1674                         }
1675
1676                         if (IS_INT_LNG_TYPE(fieldtype)) {
1677                                 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1678                         }
1679                         else
1680                                 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1681
1682                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1683                                 codegen_addpatchref(cd, PATCHER_get_putfield, uf, 0);
1684
1685                                 if (opt_showdisassemble)
1686                                         M_NOP;
1687                         }
1688
1689
1690                         switch (fieldtype) {
1691                         case TYPE_INT:
1692                                 M_IST(s2, s1, disp);
1693                                 break;
1694                         case TYPE_LNG:
1695                                 M_LST(s2, s1, disp);
1696                                 break;
1697                         case TYPE_ADR:
1698                                 M_AST(s2, s1, disp);
1699                                 break;
1700                         case TYPE_FLT:
1701                                 M_FST(s2, s1, disp);
1702                                 break;
1703                         case TYPE_DBL:
1704                                 M_DST(s2, s1, disp);
1705                                 break;
1706                         }
1707                         break;
1708
1709
1710                 /* branch operations **************************************************/
1711
1712                 case ICMD_ATHROW:       /* ..., objectref ==> ... (, objectref)       */
1713
1714                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1715                         M_LNGMOVE(s1, REG_ITMP1_XPTR);
1716
1717 #ifdef ENABLE_VERIFIER
1718                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1719                                 codegen_addpatchref(cd, PATCHER_athrow_areturn,
1720                                                                         iptr->sx.s23.s2.uc, 0);
1721
1722                                 if (opt_showdisassemble)
1723                                         M_NOP;
1724                         }
1725 #endif /* ENABLE_VERIFIER */
1726
1727                         disp = dseg_addaddress(cd, asm_handle_exception);
1728                         M_ALD(REG_ITMP2, REG_PV, disp);
1729                         M_MTCTR(REG_ITMP2);
1730
1731                         if (jd->isleafmethod) M_MFLR(REG_ITMP3);         /* save LR        */
1732                         M_BL(0);                                        /* get current PC */
1733                         M_MFLR(REG_ITMP2_XPC);
1734                         if (jd->isleafmethod) M_MTLR(REG_ITMP3);         /* restore LR     */
1735                         M_RTS;                                          /* jump to CTR    */
1736
1737                         ALIGNCODENOP;
1738                         break;
1739
1740                 case ICMD_GOTO:         /* ... ==> ...                                */
1741                 case ICMD_RET:          /* ... ==> ...                                */
1742
1743                         M_BR(0);
1744                         codegen_addreference(cd, iptr->dst.block);
1745                         ALIGNCODENOP;
1746                         break;
1747
1748                 case ICMD_JSR:          /* ... ==> ...                                */
1749
1750                         M_BR(0);
1751                         codegen_addreference(cd, iptr->sx.s23.s3.jsrtarget.block);
1752                         ALIGNCODENOP;
1753                         break;
1754
1755                 case ICMD_IFNULL:       /* ..., value ==> ...                         */
1756
1757                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1758                         M_TST(s1);
1759                         M_BEQ(0);
1760                         codegen_addreference(cd, iptr->dst.block);
1761                         break;
1762
1763                 case ICMD_IFNONNULL:    /* ..., value ==> ...                         */
1764
1765                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1766                         M_TST(s1);
1767                         M_BNE(0);
1768                         codegen_addreference(cd, iptr->dst.block);
1769                         break;
1770
1771                 case ICMD_IFLT:
1772                 case ICMD_IFLE:
1773                 case ICMD_IFNE:
1774                 case ICMD_IFGT:
1775                 case ICMD_IFGE:
1776                 case ICMD_IFEQ:         /* ..., value ==> ...                         */
1777
1778                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1779                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767))
1780                                 M_CMPI(s1, iptr->sx.val.i);
1781                         else {
1782                                 ICONST(REG_ITMP2, iptr->sx.val.i);
1783                                 M_CMP(s1, REG_ITMP2);
1784                         }
1785                         switch (iptr->opc) {
1786                         case ICMD_IFLT:
1787                                 M_BLT(0);
1788                                 break;
1789                         case ICMD_IFLE:
1790                                 M_BLE(0);
1791                                 break;
1792                         case ICMD_IFNE:
1793                                 M_BNE(0);
1794                                 break;
1795                         case ICMD_IFGT:
1796                                 M_BGT(0);
1797                                 break;
1798                         case ICMD_IFGE:
1799                                 M_BGE(0);
1800                                 break;
1801                         case ICMD_IFEQ:
1802                                 M_BEQ(0);
1803                                 break;
1804                         }
1805                         codegen_addreference(cd, iptr->dst.block);
1806                         break;
1807
1808                 case ICMD_IF_LEQ:       /* ..., value ==> ...                         */
1809                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1810                         LCONST(REG_ITMP2, iptr->sx.val.l);
1811                         M_CMP(s1, REG_ITMP2);
1812                         M_BEQ(0);
1813                         codegen_addreference(cd, iptr->dst.block);
1814                         break;
1815                 case ICMD_IF_LLT:       /* ..., value ==> ...                         */
1816                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1817                         LCONST(REG_ITMP2, iptr->sx.val.l);
1818                         M_CMP(s1, REG_ITMP2);
1819                         M_BLT(0);
1820                         codegen_addreference(cd, iptr->dst.block);
1821                         break;
1822                 case ICMD_IF_LLE:       /* ..., value ==> ...                         */
1823                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1824                         LCONST(REG_ITMP2, iptr->sx.val.l);
1825                         M_CMP(s1, REG_ITMP2);
1826                         M_BLE(0);
1827                         codegen_addreference(cd, iptr->dst.block);
1828                         break;
1829
1830                 case ICMD_IF_LNE:       /* ..., value ==> ... */
1831                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1832                         LCONST(REG_ITMP2, iptr->sx.val.l);
1833                         M_CMP(s1, REG_ITMP2);
1834                         M_BNE(0);
1835                         codegen_addreference(cd, iptr->dst.block);
1836                         break;
1837                 case ICMD_IF_LGE:       /* ..., value ==> ... */
1838                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1839                         LCONST(REG_ITMP2, iptr->sx.val.l);
1840                         M_CMP(s1, REG_ITMP2);
1841                         M_BGE(0);
1842                         codegen_addreference(cd, iptr->dst.block);
1843                         break;
1844                 case ICMD_IF_LGT:       /* ..., value ==> ...                         */
1845                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1846                         LCONST(REG_ITMP2, iptr->sx.val.l);
1847                         M_CMP(s1, REG_ITMP2);
1848                         M_BGT(0);
1849                         codegen_addreference(cd, iptr->dst.block);
1850                         break;
1851                 case ICMD_IF_ICMPEQ:    /* ..., value, value ==> ...                  */
1852                 case ICMD_IF_ACMPEQ:    /* op1 = target JavaVM pc                     */
1853                 case ICMD_IF_LCMPEQ:
1854
1855                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1856                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1857                         M_CMP(s1, s2);
1858                         M_BEQ(0);
1859                         codegen_addreference(cd, iptr->dst.block);
1860                         break;
1861
1862                 case ICMD_IF_ICMPNE:    /* ..., value, value ==> ...                  */
1863                 case ICMD_IF_ACMPNE:    /* op1 = target JavaVM pc                     */
1864                 case ICMD_IF_LCMPNE:
1865
1866                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1867                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1868                         M_CMP(s1, s2);
1869                         M_BNE(0);
1870                         codegen_addreference(cd, iptr->dst.block);
1871                         break;
1872
1873
1874                 case ICMD_IF_ICMPLT:    /* ..., value, value ==> ...                  */
1875                 case ICMD_IF_LCMPLT:
1876
1877                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1878                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1879                         M_CMP(s1, s2);
1880                         M_BLT(0);
1881                         codegen_addreference(cd, iptr->dst.block);
1882                         break;
1883
1884                 case ICMD_IF_ICMPGT:    /* ..., value, value ==> ...                  */
1885                 case ICMD_IF_LCMPGT:
1886
1887                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1888                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1889                         M_CMP(s1, s2);
1890                         M_BGT(0);
1891                         codegen_addreference(cd, iptr->dst.block);
1892                         break;
1893
1894                 case ICMD_IF_ICMPLE:    /* ..., value, value ==> ...                  */
1895                 case ICMD_IF_LCMPLE:
1896
1897                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1898                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1899                         M_CMP(s1, s2);
1900                         M_BLE(0);
1901                         codegen_addreference(cd, iptr->dst.block);
1902                         break;
1903
1904                 case ICMD_IF_ICMPGE:    /* ..., value, value ==> ...                  */
1905                 case ICMD_IF_LCMPGE:
1906
1907                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1908                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1909                         M_CMP(s1, s2);
1910                         M_BGE(0);
1911                         codegen_addreference(cd, iptr->dst.block);
1912                         break;
1913
1914
1915                 case ICMD_LRETURN:      /* ..., retvalue ==> ...                      */
1916                 case ICMD_IRETURN:      /* ..., retvalue ==> ...                      */
1917
1918                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
1919                         M_LNGMOVE(s1, REG_RESULT);
1920                         goto nowperformreturn;
1921
1922                 case ICMD_ARETURN:      /* ..., retvalue ==> ...                      */
1923
1924                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
1925                         M_LNGMOVE(s1, REG_RESULT);
1926
1927 #ifdef ENABLE_VERIFIER
1928                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1929                                 codegen_addpatchref(cd, PATCHER_athrow_areturn,
1930                                                                         iptr->sx.s23.s2.uc, 0);
1931
1932                                 if (opt_showdisassemble)
1933                                         M_NOP;
1934                         }
1935 #endif /* ENABLE_VERIFIER */
1936
1937                         goto nowperformreturn;
1938
1939                 case ICMD_FRETURN:      /* ..., retvalue ==> ...                      */
1940                 case ICMD_DRETURN:
1941
1942                         s1 = emit_load_s1(jd, iptr, REG_FRESULT);
1943                         M_FLTMOVE(s1, REG_FRESULT);
1944                         goto nowperformreturn;
1945
1946                 case ICMD_RETURN:      /* ...  ==> ...                                */
1947
1948 nowperformreturn:
1949                         {
1950                         s4 i, p;
1951
1952                         p = cd->stackframesize;
1953
1954                         /* call trace function */
1955
1956 #if !defined(NDEBUG)
1957                         if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
1958                                 emit_verbosecall_exit(jd);
1959                         }
1960 #endif
1961
1962 #if defined(ENABLE_THREADS)
1963                         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
1964                                 disp = dseg_addaddress(cd, LOCK_monitor_exit);
1965                                 M_ALD(REG_ITMP3, REG_PV, disp);
1966                                 M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
1967                                 M_MTCTR(REG_ITMP3);
1968
1969                                 /* we need to save the proper return value */
1970
1971                                 switch (iptr->opc) {
1972                                 case ICMD_LRETURN:
1973                                 case ICMD_IRETURN:
1974                                 case ICMD_ARETURN:
1975                                         /* fall through */
1976                                         M_LST(REG_RESULT , REG_SP, rd->memuse * 8 + 8);
1977                                         break;
1978                                 case ICMD_FRETURN:
1979                                         M_FST(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
1980                                         break;
1981                                 case ICMD_DRETURN:
1982                                         M_DST(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
1983                                         break;
1984                                 }
1985
1986                                 M_ALD(rd->argintregs[0], REG_SP, rd->memuse * 8);
1987                                 M_JSR;
1988
1989                                 /* and now restore the proper return value */
1990
1991                                 switch (iptr->opc) {
1992                                 case ICMD_LRETURN:
1993                                 case ICMD_IRETURN:
1994                                 case ICMD_ARETURN:
1995                                         /* fall through */
1996                                         M_LLD(REG_RESULT , REG_SP, rd->memuse * 8 + 8);
1997                                         break;
1998                                 case ICMD_FRETURN:
1999                                         M_FLD(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
2000                                         break;
2001                                 case ICMD_DRETURN:
2002                                         M_DLD(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
2003                                         break;
2004                                 }
2005                         }
2006 #endif
2007
2008                         /* restore return address                                         */
2009
2010                         if (!jd->isleafmethod) {
2011                                 /* ATTENTION: Don't use REG_ZERO (r0) here, as M_ALD
2012                                    may have a displacement overflow. */
2013
2014                                 M_ALD(REG_ITMP1, REG_SP, p * 8 + LA_LR_OFFSET);
2015                                 M_MTLR(REG_ITMP1);
2016                         }
2017
2018                         /* restore saved registers                                        */
2019
2020                         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
2021                                 p--; M_LLD(rd->savintregs[i], REG_SP, p * 8);
2022                         }
2023                         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
2024                                 p--; M_DLD(rd->savfltregs[i], REG_SP, p * 8);
2025                         }
2026
2027                         /* deallocate stack                                               */
2028
2029                         if (cd->stackframesize)
2030                                 M_LDA(REG_SP, REG_SP, cd->stackframesize * 8);
2031
2032                         M_RET;
2033                         ALIGNCODENOP;
2034                         }
2035                         break;
2036
2037
2038                 case ICMD_TABLESWITCH:  /* ..., index ==> ...                         */
2039                         {
2040                         s4 i, l;
2041                         branch_target_t *table;
2042
2043                         table = iptr->dst.table;
2044
2045                         l = iptr->sx.s23.s2.tablelow;
2046                         i = iptr->sx.s23.s3.tablehigh;
2047
2048                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2049                         if (l == 0) {
2050                                 M_INTMOVE(s1, REG_ITMP1);
2051                         } else if (l <= 32768) {
2052                                 M_LDA(REG_ITMP1, s1, -l);
2053                         } else {
2054                                 ICONST(REG_ITMP2, l);
2055                                 M_SUB(s1, REG_ITMP2, REG_ITMP1);
2056                         }
2057
2058                         /* number of targets */
2059                         i = i - l + 1;
2060
2061                         /* range check */
2062
2063                         M_CMPUI(REG_ITMP1, i - 1);
2064                         M_BGT(0);
2065                         codegen_addreference(cd, table[0].block);
2066
2067                         /* build jump table top down and use address of lowest entry */
2068
2069                         table += i;
2070
2071                         while (--i >= 0) {
2072                                 dseg_addtarget(cd, table->block);
2073                                 --table;
2074                                 }
2075                         }
2076
2077                         /* length of dataseg after last dseg_addtarget is used by load */
2078
2079                         M_SLL_IMM(REG_ITMP1, 3, REG_ITMP1);
2080                         M_IADD(REG_ITMP1, REG_PV, REG_ITMP2);
2081                         M_ALD(REG_ITMP2, REG_ITMP2, -(cd->dseglen));
2082                         M_MTCTR(REG_ITMP2);
2083                         M_RTS;
2084                         ALIGNCODENOP;
2085                         break;
2086
2087
2088                 case ICMD_LOOKUPSWITCH: /* ..., key ==> ...                           */
2089                         {
2090                         s4 i, val;
2091                         lookup_target_t *lookup;
2092
2093                         lookup = iptr->dst.lookup;
2094
2095                         i = iptr->sx.s23.s2.lookupcount;
2096
2097                         MCODECHECK((i<<2)+8);
2098                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2099                         while (--i >= 0) {
2100                                 val = lookup->value;
2101                                 if ((val >= -32768) && (val <= 32767)) {
2102                                         M_CMPI(s1, val);
2103                                 } else {
2104                                         a = dseg_adds4(cd, val);
2105                                         M_ILD(REG_ITMP2, REG_PV, a);
2106                                         M_CMP(s1, REG_ITMP2);
2107                                 }
2108                                 M_BEQ(0);
2109                                 codegen_addreference(cd, lookup->target.block);
2110                                 ++lookup;
2111                         }
2112
2113                         M_BR(0);
2114                         codegen_addreference(cd, iptr->sx.s23.s3.lookupdefault.block);
2115
2116                         ALIGNCODENOP;
2117                         break;
2118                         }
2119
2120
2121                 case ICMD_BUILTIN:      /* ..., [arg1, [arg2 ...]] ==> ...            */
2122
2123                         bte = iptr->sx.s23.s3.bte;
2124                         md = bte->md;
2125                         goto gen_method;
2126
2127                 case ICMD_INVOKESTATIC: /* ..., [arg1, [arg2 ...]] ==> ...            */
2128
2129                 case ICMD_INVOKESPECIAL:/* ..., objectref, [arg1, [arg2 ...]] ==> ... */
2130                 case ICMD_INVOKEVIRTUAL:/* op1 = arg count, val.a = method pointer    */
2131                 case ICMD_INVOKEINTERFACE:
2132
2133                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2134                                 md = iptr->sx.s23.s3.um->methodref->parseddesc.md;
2135                                 lm = NULL;
2136                         }
2137                         else {
2138                                 lm = iptr->sx.s23.s3.fmiref->p.method;
2139                                 md = lm->parseddesc;
2140                         }
2141
2142 gen_method:
2143                         s3 = md->paramcount;
2144
2145                         MCODECHECK((s3 << 1) + 64);
2146
2147                         /* copy arguments to registers or stack location */
2148
2149                         for (s3 = s3 - 1; s3 >= 0; s3--) {
2150                                 var = VAR(iptr->sx.s23.s2.args[s3]);
2151
2152                                 if (var->flags & PREALLOC)
2153                                         continue;
2154
2155                                 if (IS_INT_LNG_TYPE(var->type)) {
2156                                         if (!md->params[s3].inmemory) {
2157                                                 s1 = rd->argintregs[md->params[s3].regoff];
2158                                                 d = emit_load(jd, iptr, var, s1);
2159                                                 M_LNGMOVE(d, s1);
2160                                         } else {
2161                                                 d = emit_load(jd, iptr, var, REG_ITMP1);
2162                                                 M_LST(d, REG_SP, md->params[s3].regoff * 8);
2163                                         }
2164                                 } else {
2165                                         if (!md->params[s3].inmemory) {
2166                                                 s1 = rd->argfltregs[md->params[s3].regoff];
2167                                                 d = emit_load(jd, iptr, var, s1);
2168                                                 M_FLTMOVE(d, s1);
2169                                         } else {
2170                                                 d = emit_load(jd, iptr, var, REG_FTMP1);
2171                                                 if (IS_2_WORD_TYPE(var->type))
2172                                                         M_DST(d, REG_SP, md->params[s3].regoff * 8);
2173                                                 else
2174                                                         M_FST(d, REG_SP, md->params[s3].regoff * 8);
2175                                         }
2176                                 }
2177                         } /* end of for */
2178
2179                         switch (iptr->opc) {
2180                         case ICMD_BUILTIN:
2181                                 disp = dseg_addaddress(cd, bte->fp);
2182                                 d = md->returntype.type;
2183
2184                                 M_ALD(REG_PV, REG_PV, disp);    /* pointer to built-in-function descriptor */
2185                                 M_ALD(REG_ITMP1, REG_PV, 0);    /* function entry point address, what about TOC */
2186                                 M_MTCTR(REG_ITMP1);
2187                                 M_JSR;
2188
2189                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2190                                 M_MFLR(REG_ITMP1);
2191                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2192
2193
2194                                 if (INSTRUCTION_MUST_CHECK(iptr)) {
2195                                         M_CMPI(REG_RESULT, 0);
2196                                         M_BEQ(0);
2197                                         codegen_add_fillinstacktrace_ref(cd);
2198                                 }
2199                                 break;
2200
2201                         case ICMD_INVOKESPECIAL:
2202                                 gen_nullptr_check(rd->argintregs[0]);
2203                                 M_ILD(REG_ITMP1, rd->argintregs[0], 0); /* hardware nullptr   */
2204                                 /* fall through */
2205
2206                         case ICMD_INVOKESTATIC:
2207                                 if (lm == NULL) {
2208                                         unresolved_method *um = iptr->sx.s23.s3.um;
2209
2210                                         disp = dseg_addaddress(cd, NULL);
2211
2212                                         codegen_addpatchref(cd, PATCHER_invokestatic_special,
2213                                                                                 um, disp);
2214
2215                                         if (opt_showdisassemble)
2216                                                 M_NOP;
2217
2218                                         d = md->returntype.type;
2219
2220                                 } else {
2221                                         disp = dseg_addaddress(cd, lm->stubroutine);
2222                                         d = md->returntype.type;
2223                                 }
2224
2225                                 M_NOP;
2226                                 M_ALD(REG_PV, REG_PV, disp);
2227                                 M_MTCTR(REG_PV);
2228                                 M_JSR;
2229                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2230                                 M_MFLR(REG_ITMP1);
2231                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2232                                 break;
2233
2234                         case ICMD_INVOKEVIRTUAL:
2235                                 gen_nullptr_check(rd->argintregs[0]);
2236
2237                                 if (lm == NULL) {
2238                                         unresolved_method *um = iptr->sx.s23.s3.um;
2239
2240                                         codegen_addpatchref(cd, PATCHER_invokevirtual, um, 0);
2241
2242                                         if (opt_showdisassemble)
2243                                                 M_NOP;
2244
2245                                         s1 = 0;
2246                                         d = md->returntype.type;
2247
2248                                 } else {
2249                                         s1 = OFFSET(vftbl_t, table[0]) +
2250                                                 sizeof(methodptr) * lm->vftblindex;
2251                                         d = md->returntype.type;
2252                                 }
2253
2254                                 M_ALD(REG_METHODPTR, rd->argintregs[0],
2255                                           OFFSET(java_objectheader, vftbl));
2256                                 M_ALD(REG_PV, REG_METHODPTR, s1);
2257                                 M_MTCTR(REG_PV);
2258                                 M_JSR;
2259                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2260                                 M_MFLR(REG_ITMP1);
2261                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2262                                 break;
2263
2264                         case ICMD_INVOKEINTERFACE:
2265                                 gen_nullptr_check(rd->argintregs[0]);
2266
2267                                 if (lm == NULL) {
2268                                         unresolved_method *um = iptr->sx.s23.s3.um;
2269
2270                                         codegen_addpatchref(cd, PATCHER_invokeinterface, um, 0);
2271
2272                                         if (opt_showdisassemble)
2273                                                 M_NOP;
2274
2275                                         s1 = 0;
2276                                         s2 = 0;
2277                                         d = md->returntype.type;
2278
2279                                 } else {
2280                                         s1 = OFFSET(vftbl_t, interfacetable[0]) -
2281                                                 sizeof(methodptr*) * lm->class->index;
2282
2283                                         s2 = sizeof(methodptr) * (lm - lm->class->methods);
2284
2285                                         d = md->returntype.type;
2286                                 }
2287
2288                                 M_ALD(REG_METHODPTR, rd->argintregs[0],
2289                                           OFFSET(java_objectheader, vftbl));
2290                                 M_ALD(REG_METHODPTR, REG_METHODPTR, s1);
2291                                 M_ALD(REG_PV, REG_METHODPTR, s2);
2292                                 M_MTCTR(REG_PV);
2293                                 M_JSR;
2294                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2295                                 M_MFLR(REG_ITMP1);
2296                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2297                                 break;
2298                         }
2299
2300                         /* d contains return type */
2301
2302                         if (d != TYPE_VOID) {
2303                                 if (IS_INT_LNG_TYPE(d)) {
2304                                         s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2305                                         M_MOV(REG_RESULT, s1);
2306                                 } else {
2307                                         s1 = codegen_reg_of_dst(jd, iptr, REG_FRESULT);
2308                                         M_FLTMOVE(REG_FRESULT, s1);
2309                                 }
2310                                 emit_store_dst(jd, iptr, s1);
2311                         }
2312                         break;
2313
2314
2315                 case ICMD_CHECKCAST:  /* ..., objectref ==> ..., objectref            */
2316                                       /* val.a: (classinfo*) superclass               */
2317
2318                         /*  superclass is an interface:
2319                          *
2320                          *  OK if ((sub == NULL) ||
2321                          *         (sub->vftbl->interfacetablelength > super->index) &&
2322                          *         (sub->vftbl->interfacetable[-super->index] != NULL));
2323                          *
2324                          *  superclass is a class:
2325                          *
2326                          *  OK if ((sub == NULL) || (0
2327                          *         <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2328                          *         super->vftbl->diffvall));
2329                          */
2330
2331                         if (!(iptr->flags.bits & INS_FLAG_ARRAY)) {
2332                                 /* object type cast-check */
2333
2334                                 classinfo *super;
2335                                 s4         superindex;
2336
2337                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2338                                         super = NULL;
2339                                         superindex = 0;
2340                                 } else {
2341                                         super = iptr->sx.s23.s3.c.cls;
2342                                         superindex = super->index;
2343                                 }
2344
2345 #if defined(ENABLE_THREADS)
2346                                 codegen_threadcritrestart(cd, cd->mcodeptr - cd->mcodebase);
2347 #endif
2348                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2349
2350                                 /* calculate interface checkcast code size */
2351
2352                                 s2 = 7;
2353                                 if (super == NULL)
2354                                         s2 += (opt_showdisassemble ? 1 : 0);
2355
2356                                 /* calculate class checkcast code size */
2357
2358                                 s3 = 9 + (s1 == REG_ITMP1);
2359                                 if (super == NULL)
2360                                         s3 += (opt_showdisassemble ? 1 : 0);
2361
2362                                 /* if class is not resolved, check which code to call */
2363
2364                                 if (super == NULL) {
2365                                         M_TST(s1);
2366                                         M_BEQ(3 + (opt_showdisassemble ? 1 : 0) + s2 + 1 + s3);
2367
2368                                         disp = dseg_adds4(cd, 0);                     /* super->flags */
2369
2370                                         codegen_addpatchref(cd,
2371                                                                                 PATCHER_checkcast_instanceof_flags,
2372                                                                                 iptr->sx.s23.s3.c.ref,
2373                                                                                 disp);
2374
2375                                         if (opt_showdisassemble)
2376                                                 M_NOP;
2377
2378                                         M_ILD(REG_ITMP2, REG_PV, disp);
2379                                         M_AND_IMM(REG_ITMP2, ACC_INTERFACE, REG_ITMP2);
2380                                         M_BEQ(s2 + 1);
2381                                 }
2382
2383                                 /* interface checkcast code */
2384
2385                                 if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2386                                         if (super == NULL) {
2387                                                 codegen_addpatchref(cd,
2388                                                                                         PATCHER_checkcast_instanceof_interface,
2389                                                                                         iptr->sx.s23.s3.c.ref,
2390                                                                                         0);
2391                                                 if (opt_showdisassemble)
2392                                                         M_NOP;
2393
2394                                         } else {
2395                                                 M_TST(s1);
2396                                                 M_BEQ(s2);
2397                                         }
2398
2399                                         M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2400                                         M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, interfacetablelength));
2401                                         M_LDATST(REG_ITMP3, REG_ITMP3, -superindex);
2402                                         M_BLE(0);
2403                                         codegen_add_classcastexception_ref(cd, s1);     /*XXX s1?? */
2404                                         M_ALD(REG_ITMP3, REG_ITMP2,
2405                                                   OFFSET(vftbl_t, interfacetable[0]) -
2406                                                   superindex * sizeof(methodptr*));
2407                                         M_TST(REG_ITMP3);
2408                                         M_BEQ(0);
2409                                         codegen_add_classcastexception_ref(cd, s1);     /*XXX s1??*/
2410
2411                                         if (!super)
2412                                                 M_BR(s3);
2413                                 }
2414
2415                                 /* class checkcast code */
2416
2417                                 if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2418                                         if (super == NULL) {
2419                                                 disp = dseg_add_unique_address(cd, NULL);
2420                                                 codegen_addpatchref(cd, PATCHER_checkcast_class,
2421                                                                                         iptr->sx.s23.s3.c.ref,
2422                                                                                         disp);
2423                                                 if (opt_showdisassemble)
2424                                                         M_NOP;
2425                                         } else {
2426                                                 disp = dseg_addaddress(cd, super->vftbl);
2427                                                 M_TST(s1);
2428                                                 M_BEQ(s3);
2429                                         }
2430
2431                                         M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2432 #if defined(ENABLE_THREADS)
2433                                         codegen_threadcritstart(cd, cd->mcodeptr - cd->mcodebase);
2434 #endif
2435                                         M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2436                                         M_ALD(REG_ITMP2, REG_PV, disp);
2437                                         if (s1 != REG_ITMP1) {
2438                                                 M_ILD(REG_ITMP1, REG_ITMP2, OFFSET(vftbl_t, baseval));
2439                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2440 #if defined(ENABLE_THREADS)
2441                                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2442 #endif
2443                                                 M_SUB(REG_ITMP3, REG_ITMP1, REG_ITMP3);
2444                                                 M_EXTSW(REG_ITMP3, REG_ITMP3);
2445                                         } else {
2446                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, baseval));
2447                                                 M_SUB(REG_ITMP3, REG_ITMP2, REG_ITMP3);
2448                                                 M_EXTSW(REG_ITMP3, REG_ITMP3);
2449                                                 M_ALD(REG_ITMP2, REG_PV, disp);
2450                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2451 #if defined(ENABLE_THREADS)
2452                                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2453 #endif
2454                                         }
2455                                         M_CMPU(REG_ITMP3, REG_ITMP2);
2456                                         M_BGT(0);
2457                                         codegen_add_classcastexception_ref(cd, s1); /* XXX s1? */
2458                                 }
2459                                 d = codegen_reg_of_dst(jd, iptr, s1);
2460
2461                         } else {
2462                                 /* array type cast-check */
2463
2464                                 s1 = emit_load_s1(jd, iptr, rd->argintregs[0]);
2465                                 M_INTMOVE(s1, rd->argintregs[0]);
2466
2467
2468                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2469                                         disp = dseg_addaddress(cd, NULL);
2470                                         codegen_addpatchref(cd, PATCHER_builtin_arraycheckcast,
2471                                                                                 iptr->sx.s23.s3.c.ref,
2472                                                                                 disp);
2473
2474                                         if (opt_showdisassemble)
2475                                                 M_NOP;
2476                                 } else {
2477                                         disp = dseg_addaddress(cd, iptr->sx.s23.s3.c.cls);
2478                                 }
2479
2480                                 M_ALD(rd->argintregs[1], REG_PV, disp);
2481                                 disp = dseg_addaddress(cd, BUILTIN_arraycheckcast);
2482                                 M_ALD(REG_ITMP2, REG_PV, disp);
2483                                 M_ALD(REG_ITMP2, REG_ITMP2, 0); /* TOC */
2484                                 M_MTCTR(REG_ITMP2);
2485                                 M_JSR;
2486                                 M_TST(REG_RESULT);
2487                                 M_BEQ(0);
2488                                 codegen_add_classcastexception_ref(cd, s1); /* XXX s1? */
2489
2490                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2491                                 d = codegen_reg_of_dst(jd, iptr, s1);
2492                         }
2493                         M_INTMOVE(s1, d);
2494                         emit_store_dst(jd, iptr, d);
2495                         break;
2496
2497                 case ICMD_INSTANCEOF: /* ..., objectref ==> ..., intresult            */
2498                                       /* val.a: (classinfo*) superclass               */
2499
2500                         /*  superclass is an interface:
2501                          *
2502                          *  return (sub != NULL) &&
2503                          *         (sub->vftbl->interfacetablelength > super->index) &&
2504                          *         (sub->vftbl->interfacetable[-super->index] != NULL);
2505                          *
2506                          *  superclass is a class:
2507                          *
2508                          *  return ((sub != NULL) && (0
2509                          *          <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2510                          *          super->vftbl->diffvall));
2511                          */
2512
2513                         {
2514                         classinfo *super;
2515                         vftbl_t   *supervftbl;
2516                         s4         superindex;
2517
2518                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2519                                 super = NULL;
2520                                 superindex = 0;
2521                                 supervftbl = NULL;
2522                         }
2523                         else {
2524                                 super = iptr->sx.s23.s3.c.cls;
2525                                 superindex = super->index;
2526                                 supervftbl = super->vftbl;
2527                         }
2528
2529 #if defined(ENABLE_THREADS)
2530             codegen_threadcritrestart(cd, cd->mcodeptr - cd->mcodebase);
2531 #endif
2532                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2533                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
2534                         if (s1 == d) {
2535                                 M_MOV(s1, REG_ITMP1);
2536                                 s1 = REG_ITMP1;
2537                         }
2538
2539                         /* calculate interface instanceof code size */
2540
2541                         s2 = 8;
2542                         if (!super)
2543                                 s2 += (opt_showdisassemble ? 1 : 0);
2544
2545                         /* calculate class instanceof code size */
2546
2547                         s3 = 10;
2548                         if (!super)
2549                                 s3 += (opt_showdisassemble ? 1 : 0);
2550
2551                         M_CLR(d);
2552
2553                         /* if class is not resolved, check which code to call */
2554
2555                         if (!super) {
2556                                 M_TST(s1);
2557                                 M_BEQ(3 + (opt_showdisassemble ? 1 : 0) + s2 + 1 + s3);
2558
2559                                 disp = dseg_adds4(cd, 0);                     /* super->flags */
2560
2561                                 codegen_addpatchref(cd, PATCHER_checkcast_instanceof_flags,
2562                                                                         iptr->sx.s23.s3.c.ref, disp);
2563
2564                                 if (opt_showdisassemble)
2565                                         M_NOP;
2566
2567                                 M_ILD(REG_ITMP3, REG_PV, disp);
2568                                 M_AND_IMM(REG_ITMP3, ACC_INTERFACE, REG_ITMP3);
2569                                 M_BEQ(s2 + 1);
2570                         }
2571
2572                         /* interface instanceof code */
2573
2574                         if (!super || (super->flags & ACC_INTERFACE)) {
2575                                 if (super) {
2576                                         M_TST(s1);
2577                                         M_BEQ(s2);
2578
2579                                 } else {
2580                                         codegen_addpatchref(cd,
2581                                                                                 PATCHER_checkcast_instanceof_interface,
2582                                                                                 iptr->sx.s23.s3.c.ref, 0);
2583
2584                                         if (opt_showdisassemble)
2585                                                 M_NOP;
2586                                 }
2587
2588                                 M_ALD(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
2589                                 M_ILD(REG_ITMP3, REG_ITMP1, OFFSET(vftbl_t, interfacetablelength));
2590                                 M_LDATST(REG_ITMP3, REG_ITMP3, -superindex);
2591                                 M_BLE(4);
2592                                 M_ALD(REG_ITMP1, REG_ITMP1,
2593                                           OFFSET(vftbl_t, interfacetable[0]) -
2594                                           superindex * sizeof(methodptr*));
2595                                 M_TST(REG_ITMP1);
2596                                 M_BEQ(1);
2597                                 M_IADD_IMM(REG_ZERO, 1, d);
2598
2599                                 if (!super)
2600                                         M_BR(s3);
2601                         }
2602
2603                         /* class instanceof code */
2604
2605                         if (!super || !(super->flags & ACC_INTERFACE)) {
2606                                 disp = dseg_addaddress(cd, supervftbl);
2607
2608                                 if (super) {
2609                                         M_TST(s1);
2610                                         M_BEQ(s3);
2611
2612                                 } else {
2613                                         codegen_addpatchref(cd, PATCHER_instanceof_class,
2614                                                                                 iptr->sx.s23.s3.c.ref,
2615                                                                                 disp);
2616
2617                                         if (opt_showdisassemble) {
2618                                                 M_NOP;
2619                                         }
2620                                 }
2621
2622                                 M_ALD(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
2623                                 M_ALD(REG_ITMP2, REG_PV, disp);
2624 #if defined(ENABLE_THREADS)
2625                                 codegen_threadcritstart(cd, cd->mcodeptr - cd->mcodebase);
2626 #endif
2627                                 M_ILD(REG_ITMP1, REG_ITMP1, OFFSET(vftbl_t, baseval));
2628                                 M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2629                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2630 #if defined(ENABLE_THREADS)
2631                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2632 #endif
2633                                 M_SUB(REG_ITMP1, REG_ITMP3, REG_ITMP1);
2634                                 M_CMPU(REG_ITMP1, REG_ITMP2);
2635                                 M_CLR(d);
2636                                 M_BGT(1);
2637                                 M_IADD_IMM(REG_ZERO, 1, d);
2638                         }
2639                         emit_store_dst(jd, iptr, d);
2640                         }
2641                         break;
2642
2643                 case ICMD_MULTIANEWARRAY:/* ..., cnt1, [cnt2, ...] ==> ..., arrayref  */
2644
2645                         /* check for negative sizes and copy sizes to stack if necessary  */
2646
2647                         MCODECHECK((iptr->s1.argcount << 1) + 64);
2648
2649                         for (s1 = iptr->s1.argcount; --s1 >= 0; ) {
2650
2651                                 var = VAR(iptr->sx.s23.s2.args[s1]);
2652
2653                                 /* copy SAVEDVAR sizes to stack */
2654
2655                                 if (!(var->flags & PREALLOC)) {
2656                                         s2 = emit_load(jd, iptr, var, REG_ITMP1);
2657 #if defined(__DARWIN__)
2658                                         M_LST(s2, REG_SP, LA_SIZE + (s1 + INT_ARG_CNT) * 8);
2659 #else
2660                                         M_LST(s2, REG_SP, LA_SIZE + (s1 + 3) * 8);
2661 #endif
2662                                 }
2663                         }
2664
2665                         /* a0 = dimension count */
2666
2667                         ICONST(rd->argintregs[0], iptr->s1.argcount);
2668
2669                         /* is patcher function set? */
2670
2671                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2672                                 disp = dseg_add_unique_address(cd, NULL);
2673
2674                                 codegen_addpatchref(cd, PATCHER_builtin_multianewarray,
2675                                                                         iptr->sx.s23.s3.c.ref, disp);
2676
2677                                 if (opt_showdisassemble)
2678                                         M_NOP;
2679
2680                         } else {
2681                                 disp = dseg_addaddress(cd, iptr->sx.s23.s3.c.cls);
2682                         }
2683
2684                         /* a1 = arraydescriptor */
2685
2686                         M_ALD(rd->argintregs[1], REG_PV, disp);
2687
2688                         /* a2 = pointer to dimensions = stack pointer */
2689
2690 #if defined(__DARWIN__)
2691                         M_LDA(rd->argintregs[2], REG_SP, LA_SIZE + INT_ARG_CNT * 8);
2692 #else
2693                         M_LDA(rd->argintregs[2], REG_SP, LA_SIZE + 3 * 8);
2694 #endif
2695
2696                         disp = dseg_addaddress(cd, BUILTIN_multianewarray);
2697                         M_ALD(REG_ITMP3, REG_PV, disp);
2698                         M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
2699                         M_MTCTR(REG_ITMP3);
2700                         M_JSR;
2701
2702                         /* check for exception before result assignment */
2703
2704                         M_CMPI(REG_RESULT, 0);
2705                         M_BEQ(0);
2706                         codegen_add_fillinstacktrace_ref(cd);
2707
2708                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2709                         M_INTMOVE(REG_RESULT, d);
2710                         emit_store_dst(jd, iptr, d);
2711                         break;
2712
2713                 default:
2714                         *exceptionptr =
2715                                 new_internalerror("Unknown ICMD %d during code generation",
2716                                                                   iptr->opc);
2717                         return false;
2718         } /* switch */
2719
2720         } /* for instruction */
2721
2722         } /* if (bptr -> flags >= BBREACHED) */
2723         } /* for basic block */
2724
2725         dseg_createlinenumbertable(cd);
2726
2727
2728         /* generate exception and patcher stubs */
2729
2730         {
2731                 exceptionref *eref;
2732                 patchref     *pref;
2733                 u4            mcode;
2734                 u1           *savedmcodeptr;
2735                 u1           *tmpmcodeptr;
2736
2737                 savedmcodeptr = NULL;
2738
2739                 /* generate exception stubs */
2740
2741                 for (eref = cd->exceptionrefs; eref != NULL; eref = eref->next) {
2742                         md_codegen_patch_branch(cd, eref->branchpos, cd->mcodeptr - cd->mcodebase);
2743
2744                         MCODECHECK(100);
2745
2746                         /* Check if the exception is an
2747                            ArrayIndexOutOfBoundsException.  If so, move index register
2748                            into REG_ITMP1. */
2749
2750                         if (eref->reg != -1)
2751                                 M_MOV(eref->reg, REG_ITMP1);
2752
2753                         /* calcuate exception address */
2754
2755                         M_LDA(REG_ITMP2_XPC, REG_PV, eref->branchpos - 4);
2756
2757                         /* move function to call into REG_ITMP3 */
2758
2759                         disp = dseg_addaddress(cd, eref->function);
2760                         M_ALD(REG_ITMP3, REG_PV, disp);
2761                         M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
2762
2763                         if (savedmcodeptr != NULL) {
2764                                 disp = ((u4 *) savedmcodeptr) - (((u4 *) cd->mcodeptr) + 1);
2765                                 M_BR(disp);
2766
2767                         } else {
2768                                 savedmcodeptr = cd->mcodeptr;
2769
2770                                 if (jd->isleafmethod) {
2771                                         M_MFLR(REG_ZERO);
2772                                         M_AST(REG_ZERO, REG_SP, cd->stackframesize * 8 + LA_LR_OFFSET);
2773                                 }
2774
2775                                 M_MOV(REG_PV, rd->argintregs[0]);
2776                                 M_MOV(REG_SP, rd->argintregs[1]);
2777
2778                                 if (jd->isleafmethod)
2779                                         M_MOV(REG_ZERO, rd->argintregs[2]);
2780                                 else
2781                                         M_ALD(rd->argintregs[2],
2782                                                   REG_SP, cd->stackframesize * 8 + LA_LR_OFFSET);
2783
2784                                 M_MOV(REG_ITMP2_XPC, rd->argintregs[3]);
2785                                 M_MOV(REG_ITMP1, rd->argintregs[4]);
2786
2787                                 M_STDU(REG_SP, REG_SP, -(LA_SIZE + 6 * 8));
2788                                 M_AST(REG_ITMP2_XPC, REG_SP, LA_SIZE + 5 * 8);
2789
2790                                 M_MTCTR(REG_ITMP3);
2791                                 M_JSR;
2792                                 M_MOV(REG_RESULT, REG_ITMP1_XPTR);
2793
2794                                 M_ALD(REG_ITMP2_XPC, REG_SP, LA_SIZE + 5 * 8);
2795                                 M_LADD_IMM(REG_SP, LA_SIZE + 6 * 8, REG_SP);
2796
2797                                 if (jd->isleafmethod) {
2798                                         /* XXX FIXME: REG_ZERO can cause problems here! */
2799                                         assert(cd->stackframesize * 8 <= 32767);
2800
2801                                         M_ALD(REG_ZERO, REG_SP, cd->stackframesize * 8 + LA_LR_OFFSET);
2802                                         M_MTLR(REG_ZERO);
2803                                 }
2804
2805                                 disp = dseg_addaddress(cd, asm_handle_exception);
2806                                 M_ALD(REG_ITMP3, REG_PV, disp);
2807                                 M_MTCTR(REG_ITMP3);
2808                                 M_RTS;
2809                         }
2810                 }
2811
2812
2813                 /* generate code patching stub call code */
2814
2815                 for (pref = cd->patchrefs; pref != NULL; pref = pref->next) {
2816                         /* check code segment size */
2817
2818                         MCODECHECK(16);
2819
2820                         /* Get machine code which is patched back in later. The
2821                            call is 1 instruction word long. */
2822
2823                         tmpmcodeptr = (u1 *) (cd->mcodebase + pref->branchpos);
2824
2825                         mcode = *((u4 *) tmpmcodeptr);
2826
2827                         /* Patch in the call to call the following code (done at
2828                            compile time). */
2829
2830                         savedmcodeptr = cd->mcodeptr;   /* save current mcodeptr          */
2831                         cd->mcodeptr  = tmpmcodeptr;    /* set mcodeptr to patch position */
2832
2833                         disp = ((u4 *) savedmcodeptr) - (((u4 *) tmpmcodeptr) + 1);
2834                         M_BR(disp);
2835
2836                         cd->mcodeptr = savedmcodeptr;   /* restore the current mcodeptr   */
2837
2838                         /* create stack frame - keep stack 16-byte aligned */
2839
2840                         M_AADD_IMM(REG_SP, -8 * 8, REG_SP);
2841
2842                         /* calculate return address and move it onto the stack */
2843
2844                         M_LDA(REG_ITMP3, REG_PV, pref->branchpos);
2845                         M_AST_INTERN(REG_ITMP3, REG_SP, 5 * 8);
2846
2847                         /* move pointer to java_objectheader onto stack */
2848
2849 #if defined(ENABLE_THREADS)
2850                         /* order reversed because of data segment layout */
2851
2852                         (void) dseg_addaddress(cd, NULL);                         /* flcword    */
2853                         (void) dseg_addaddress(cd, lock_get_initial_lock_word()); /* monitorPtr */
2854                         disp = dseg_addaddress(cd, NULL);                         /* vftbl      */
2855
2856                         M_LDA(REG_ITMP3, REG_PV, disp);
2857                         M_AST_INTERN(REG_ITMP3, REG_SP, 4 * 8);
2858 #else
2859                         /* do nothing */
2860 #endif
2861
2862                         /* move machine code onto stack */
2863
2864                         disp = dseg_adds4(cd, mcode);
2865                         M_ILD(REG_ITMP3, REG_PV, disp);
2866                         M_IST_INTERN(REG_ITMP3, REG_SP, 3 * 8);
2867
2868                         /* move class/method/field reference onto stack */
2869
2870                         disp = dseg_addaddress(cd, pref->ref);
2871                         M_ALD(REG_ITMP3, REG_PV, disp);
2872                         M_AST_INTERN(REG_ITMP3, REG_SP, 2 * 8);
2873
2874                         /* move data segment displacement onto stack */
2875
2876                         disp = dseg_addaddress(cd, pref->disp);
2877                         M_LLD(REG_ITMP3, REG_PV, disp);
2878                         M_IST_INTERN(REG_ITMP3, REG_SP, 1 * 8);
2879
2880                         /* move patcher function pointer onto stack */
2881
2882                         disp = dseg_addaddress(cd, pref->patcher);
2883                         M_ALD(REG_ITMP3, REG_PV, disp);
2884                         M_AST_INTERN(REG_ITMP3, REG_SP, 0 * 8);
2885
2886                         disp = dseg_addaddress(cd, asm_patcher_wrapper);
2887                         M_ALD(REG_ITMP3, REG_PV, disp);
2888                         M_MTCTR(REG_ITMP3);
2889                         M_RTS;
2890                 }
2891
2892                 /* generate replacement-out stubs */
2893
2894 #if 0
2895                 {
2896                         int i;
2897
2898                         replacementpoint = jd->code->rplpoints;
2899
2900                         for (i = 0; i < jd->code->rplpointcount; ++i, ++replacementpoint) {
2901                                 /* check code segment size */
2902
2903                                 MCODECHECK(100);
2904
2905                                 /* note start of stub code */
2906
2907                                 replacementpoint->outcode = (u1 *) (cd->mcodeptr - cd->mcodebase);
2908
2909                                 /* make machine code for patching */
2910
2911                                 tmpmcodeptr  = cd->mcodeptr;
2912                                 cd->mcodeptr = (u1 *) &(replacementpoint->mcode) + 1 /* big-endian */;
2913
2914                                 disp = (ptrint)((s4*)replacementpoint->outcode - (s4*)replacementpoint->pc) - 1;
2915                                 M_BR(disp);
2916
2917                                 cd->mcodeptr = tmpmcodeptr;
2918
2919                                 /* create stack frame - keep 16-byte aligned */
2920
2921                                 M_AADD_IMM(REG_SP, -4 * 4, REG_SP);
2922
2923                                 /* push address of `rplpoint` struct */
2924
2925                                 disp = dseg_addaddress(cd, replacementpoint);
2926                                 M_ALD(REG_ITMP3, REG_PV, disp);
2927                                 M_AST_INTERN(REG_ITMP3, REG_SP, 0 * 4);
2928
2929                                 /* jump to replacement function */
2930
2931                                 disp = dseg_addaddress(cd, asm_replacement_out);
2932                                 M_ALD(REG_ITMP3, REG_PV, disp);
2933                                 M_MTCTR(REG_ITMP3);
2934                                 M_RTS;
2935                         }
2936                 }
2937 #endif
2938         }
2939
2940         codegen_finish(jd);
2941
2942         /* everything's ok */
2943
2944         return true;
2945 }
2946
2947
2948 /* createcompilerstub **********************************************************
2949
2950    Creates a stub routine which calls the compiler.
2951
2952 *******************************************************************************/
2953
2954 #define COMPILERSTUB_DATASIZE    3 * SIZEOF_VOID_P
2955 #define COMPILERSTUB_CODESIZE    4 * 4
2956
2957 #define COMPILERSTUB_SIZE        COMPILERSTUB_DATASIZE + COMPILERSTUB_CODESIZE
2958
2959
2960 u1 *createcompilerstub(methodinfo *m)
2961 {
2962         u1          *s;                     /* memory to hold the stub            */
2963         ptrint      *d;
2964         codeinfo    *code;
2965         codegendata *cd;
2966         s4           dumpsize;
2967
2968         s = CNEW(u1, COMPILERSTUB_SIZE);
2969
2970         /* set data pointer and code pointer */
2971
2972         d = (ptrint *) s;
2973         s = s + COMPILERSTUB_DATASIZE;
2974
2975         /* mark start of dump memory area */
2976
2977         dumpsize = dump_size();
2978
2979         cd = DNEW(codegendata);
2980         cd->mcodeptr = s;
2981
2982         /* Store the codeinfo pointer in the same place as in the
2983            methodheader for compiled methods. */
2984
2985         code = code_codeinfo_new(m);
2986
2987         d[0] = (ptrint) asm_call_jit_compiler;
2988         d[1] = (ptrint) m;
2989         d[2] = (ptrint) code;
2990
2991         M_ALD_INTERN(REG_ITMP1, REG_PV, -2 * SIZEOF_VOID_P);
2992         M_ALD_INTERN(REG_PV, REG_PV, -3 * SIZEOF_VOID_P);
2993         M_MTCTR(REG_PV);
2994         M_RTS;
2995
2996         md_cacheflush((u1 *) d, COMPILERSTUB_SIZE);
2997
2998 #if defined(ENABLE_STATISTICS)
2999         if (opt_stat)
3000                 count_cstub_len += COMPILERSTUB_SIZE;
3001 #endif
3002
3003         /* release dump area */
3004
3005         dump_release(dumpsize);
3006
3007         return s;
3008 }
3009
3010
3011 /* createnativestub ************************************************************
3012
3013    Creates a stub routine which calls a native method.
3014
3015 *******************************************************************************/
3016
3017 u1 *createnativestub(functionptr f, jitdata *jd, methoddesc *nmd)
3018 {
3019         methodinfo   *m;
3020         codeinfo     *code;
3021         codegendata  *cd;
3022         registerdata *rd;
3023         methoddesc   *md;
3024         s4            nativeparams;
3025         s4            i, j;                 /* count variables                    */
3026         s4            t;
3027         s4            s1, s2, disp;
3028         s4            funcdisp;
3029
3030         /* get required compiler data */
3031
3032         m    = jd->m;
3033         code = jd->code;
3034         cd   = jd->cd;
3035         rd   = jd->rd;
3036
3037         /* set some variables */
3038
3039         md = m->parseddesc;
3040         nativeparams = (m->flags & ACC_STATIC) ? 2 : 1;
3041
3042         /* calculate stackframe size */
3043
3044         cd->stackframesize =
3045                 sizeof(stackframeinfo) / SIZEOF_VOID_P +
3046                 sizeof(localref_table) / SIZEOF_VOID_P +
3047                 4 +                            /* 4 stackframeinfo arguments (darwin)*/
3048                 nmd->paramcount  +
3049                 nmd->memuse;
3050
3051         cd->stackframesize = (cd->stackframesize + 3) & ~3; /* keep stack 16-byte aligned */
3052
3053         /* create method header */
3054
3055         (void) dseg_addaddress(cd, code);                      /* CodeinfoPointer */
3056         (void) dseg_adds4(cd, cd->stackframesize * 8);             /* FrameSize       */
3057         (void) dseg_adds4(cd, 0);                              /* IsSync          */
3058         (void) dseg_adds4(cd, 0);                              /* IsLeaf          */
3059         (void) dseg_adds4(cd, 0);                              /* IntSave         */
3060         (void) dseg_adds4(cd, 0);                              /* FltSave         */
3061         (void) dseg_addlinenumbertablesize(cd);
3062         (void) dseg_adds4(cd, 0);                              /* ExTableSize     */
3063
3064         /* generate code */
3065
3066         M_MFLR(REG_ZERO);
3067         M_AST_INTERN(REG_ZERO, REG_SP, LA_LR_OFFSET);
3068         M_STDU(REG_SP, REG_SP, -(cd->stackframesize * 8));
3069
3070 #if !defined(NDEBUG)
3071         if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
3072                 emit_verbosecall_enter(jd);
3073         }
3074 #endif
3075         /* get function address (this must happen before the stackframeinfo) */
3076
3077         funcdisp = dseg_addaddress(cd, f);
3078
3079 #if !defined(WITH_STATIC_CLASSPATH)
3080         if (f == NULL) {
3081                 codegen_addpatchref(cd, PATCHER_resolve_native, m, funcdisp);
3082
3083                 if (opt_showdisassemble)
3084                         M_NOP;
3085         }
3086 #endif
3087
3088         /* save integer and float argument registers */
3089
3090         j = 0;
3091
3092         for (i = 0; i < md->paramcount; i++) {
3093                 t = md->paramtypes[i].type;
3094
3095                 if (IS_INT_LNG_TYPE(t)) {
3096                         if (!md->params[i].inmemory) {
3097                                 s1 = md->params[i].regoff;
3098                                 M_LST(rd->argintregs[s1], REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + j * 8);
3099                                 j++;
3100                         }
3101                 }
3102         }
3103
3104         for (i = 0; i < md->paramcount; i++) {
3105                 if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
3106                         if (!md->params[i].inmemory) {
3107                                 s1 = md->params[i].regoff;
3108                                 M_DST(rd->argfltregs[s1], REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + j * 8);
3109                                 j++;
3110                         }
3111                 }
3112         }
3113
3114         /* create native stack info */
3115
3116         M_AADD_IMM(REG_SP, cd->stackframesize * 8, rd->argintregs[0]);
3117         M_MOV(REG_PV, rd->argintregs[1]);
3118         M_AADD_IMM(REG_SP, cd->stackframesize * 8, rd->argintregs[2]);
3119         M_ALD(rd->argintregs[3], REG_SP, cd->stackframesize * 8 + LA_LR_OFFSET);
3120         disp = dseg_addaddress(cd, codegen_start_native_call);
3121
3122         M_ALD(REG_ITMP1, REG_PV, disp);
3123         M_ALD(REG_ITMP1, REG_ITMP1, 0);         /* TOC */
3124         M_MTCTR(REG_ITMP1);
3125         M_JSR;
3126
3127         /* restore integer and float argument registers */
3128
3129         j = 0;
3130
3131         for (i = 0; i < md->paramcount; i++) {
3132                 t = md->paramtypes[i].type;
3133
3134                 if (IS_INT_LNG_TYPE(t)) {
3135                         if (!md->params[i].inmemory) {
3136                                 s1 = md->params[i].regoff;
3137                                 M_LLD(rd->argintregs[s1], REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + j * 8);
3138                                 j++;
3139                         }
3140                 }
3141         }
3142
3143         for (i = 0; i < md->paramcount; i++) {
3144                 if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
3145                         if (!md->params[i].inmemory) {
3146                                 s1 = md->params[i].regoff;
3147                                 M_DLD(rd->argfltregs[s1], REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + j * 8);
3148                                 j++;
3149                         }
3150                 }
3151         }
3152
3153         /* copy or spill arguments to new locations */
3154
3155         for (i = md->paramcount - 1, j = i + nativeparams; i >= 0; i--, j--) {
3156                 t = md->paramtypes[i].type;
3157
3158                 if (IS_INT_LNG_TYPE(t)) {
3159                         if (!md->params[i].inmemory) {
3160                                 s1 = rd->argintregs[md->params[i].regoff];
3161
3162                                 if (!nmd->params[j].inmemory) {
3163                                         s2 = rd->argintregs[nmd->params[j].regoff];
3164                                         M_INTMOVE(s1, s2);
3165                                 } else {
3166                                         s2 = nmd->params[j].regoff;
3167                                         M_LST(s1, REG_SP, s2 * 8);
3168                                 }
3169
3170                         } else {
3171                                 s1 = md->params[i].regoff + cd->stackframesize;
3172                                 s2 = nmd->params[j].regoff;
3173
3174                                 M_LLD(REG_ITMP1, REG_SP, s1 * 8);
3175                                 M_LST(REG_ITMP1, REG_SP, s2 * 8);
3176                         }
3177
3178                 } else {
3179                         /* We only copy spilled float arguments, as the float
3180                            argument registers keep unchanged. */
3181
3182                         if (md->params[i].inmemory) {
3183                                 s1 = md->params[i].regoff + cd->stackframesize;
3184                                 s2 = nmd->params[j].regoff;
3185
3186                                 if (IS_2_WORD_TYPE(t)) {
3187                                         M_DLD(REG_FTMP1, REG_SP, s1 * 8);
3188                                         M_DST(REG_FTMP1, REG_SP, s2 * 8);
3189
3190                                 } else {
3191                                         M_FLD(REG_FTMP1, REG_SP, s1 * 8);
3192                                         M_FST(REG_FTMP1, REG_SP, s2 * 8);
3193                                 }
3194                         }
3195                 }
3196         }
3197
3198         /* put class into second argument register */
3199
3200         if (m->flags & ACC_STATIC) {
3201                 disp = dseg_addaddress(cd, m->class);
3202                 M_ALD(rd->argintregs[1], REG_PV, disp);
3203         }
3204
3205         /* put env into first argument register */
3206
3207         disp = dseg_addaddress(cd, _Jv_env);
3208         M_ALD(rd->argintregs[0], REG_PV, disp);
3209
3210         /* generate the actual native call */
3211         /* native functions have a different TOC for sure */
3212
3213         M_AST(REG_TOC, REG_SP, 40);     /* save old TOC */
3214         M_ALD(REG_ITMP3, REG_PV, funcdisp);
3215         M_ALD(REG_TOC, REG_ITMP3, 8);   /* load TOC from func. descriptor */
3216         M_ALD(REG_ITMP3, REG_ITMP3, 0);
3217         M_MTCTR(REG_ITMP3);
3218         M_JSR;
3219         M_ALD(REG_TOC, REG_SP, 40);     /* restore TOC */
3220
3221         /* save return value */
3222
3223         if (md->returntype.type != TYPE_VOID) {
3224                 if (IS_INT_LNG_TYPE(md->returntype.type)) {
3225                         M_LST(REG_RESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
3226                 }
3227                 else {
3228                         if (IS_2_WORD_TYPE(md->returntype.type))
3229                                 M_DST(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
3230                         else
3231                                 M_FST(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);  /* FIXME, needed ?*/
3232                 }
3233         }
3234
3235         /* print call trace */
3236 #if ! defined(NDEBGUU)
3237         if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
3238                 emit_verbosecall_exit(jd);
3239         }
3240 #endif
3241         /* remove native stackframe info */
3242
3243         M_AADD_IMM(REG_SP, cd->stackframesize * 8, rd->argintregs[0]);
3244         disp = dseg_addaddress(cd, codegen_finish_native_call);
3245         M_ALD(REG_ITMP1, REG_PV, disp);
3246         M_ALD(REG_ITMP1, REG_ITMP1, 0); /* XXX what about TOC? */
3247         M_MTCTR(REG_ITMP1);
3248         M_JSR;
3249         M_MOV(REG_RESULT, REG_ITMP1_XPTR);
3250
3251         /* restore return value */
3252
3253         if (md->returntype.type != TYPE_VOID) {
3254                 if (IS_INT_LNG_TYPE(md->returntype.type)) {
3255                         M_LLD(REG_RESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
3256                 }
3257                 else {
3258                         if (IS_2_WORD_TYPE(md->returntype.type))
3259                                 M_DLD(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
3260                         else
3261                                 M_FLD(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
3262                 }
3263         }
3264
3265         M_ALD(REG_ITMP2_XPC, REG_SP, cd->stackframesize * 8 + LA_LR_OFFSET);
3266         M_MTLR(REG_ITMP2_XPC);
3267         M_LDA(REG_SP, REG_SP, cd->stackframesize * 8); /* remove stackframe           */
3268
3269         /* check for exception */
3270
3271         M_TST(REG_ITMP1_XPTR);
3272         M_BNE(1);                           /* if no exception then return        */
3273
3274         M_RET;
3275
3276         /* handle exception */
3277
3278         M_LADD_IMM(REG_ITMP2_XPC, -4, REG_ITMP2_XPC);  /* exception address       */
3279
3280         disp = dseg_addaddress(cd, asm_handle_nat_exception);
3281         M_ALD(REG_ITMP3, REG_PV, disp);
3282         M_MTCTR(REG_ITMP3);
3283         M_RTS;
3284
3285         /* generate patcher stub call code */
3286
3287         {
3288                 patchref *pref;
3289                 u4        mcode;
3290                 u1       *savedmcodeptr;
3291                 u1       *tmpmcodeptr;
3292
3293                 for (pref = cd->patchrefs; pref != NULL; pref = pref->next) {
3294                         /* Get machine code which is patched back in later. The
3295                            call is 1 instruction word long. */
3296
3297                         tmpmcodeptr = cd->mcodebase + pref->branchpos;
3298
3299                         mcode = *((u4 *) tmpmcodeptr);
3300
3301                         /* Patch in the call to call the following code (done at
3302                            compile time). */
3303
3304                         savedmcodeptr = cd->mcodeptr;   /* save current mcodeptr          */
3305                         cd->mcodeptr  = tmpmcodeptr;    /* set mcodeptr to patch position */
3306
3307                         disp = ((u4 *) savedmcodeptr) - (((u4 *) tmpmcodeptr) + 1);
3308                         M_BL(disp);
3309
3310                         cd->mcodeptr = savedmcodeptr;   /* restore the current mcodeptr   */
3311
3312                         /* create stack frame - keep stack 16-byte aligned */
3313
3314                         M_AADD_IMM(REG_SP, -8 * 8, REG_SP);
3315
3316                         /* move return address onto stack */
3317
3318                         M_MFLR(REG_ZERO);
3319                         M_AST(REG_ZERO, REG_SP, 5 * 8);
3320
3321                         /* move pointer to java_objectheader onto stack */
3322
3323 #if defined(ENABLE_THREADS)
3324                         /* order reversed because of data segment layout */
3325
3326                         (void) dseg_addaddress(cd, NULL);                         /* flcword    */
3327                         (void) dseg_addaddress(cd, lock_get_initial_lock_word()); /* monitorPtr */
3328                         disp = dseg_addaddress(cd, NULL);                         /* vftbl      */
3329
3330                         M_LDA(REG_ITMP3, REG_PV, disp);
3331                         M_AST(REG_ITMP3, REG_SP, 4 * 8);
3332 #else
3333                         /* do nothing */
3334 #endif
3335
3336                         /* move machine code onto stack */
3337
3338                         disp = dseg_adds4(cd, mcode);
3339                         M_ILD(REG_ITMP3, REG_PV, disp);
3340                         M_IST(REG_ITMP3, REG_SP, 3 * 8);
3341
3342                         /* move class/method/field reference onto stack */
3343
3344                         disp = dseg_addaddress(cd, pref->ref);
3345                         M_ALD(REG_ITMP3, REG_PV, disp);
3346                         M_AST(REG_ITMP3, REG_SP, 2 * 8);
3347
3348                         /* move data segment displacement onto stack */
3349
3350                         disp = dseg_adds4(cd, pref->disp);
3351                         M_ILD(REG_ITMP3, REG_PV, disp);
3352                         M_IST(REG_ITMP3, REG_SP, 1 * 8);
3353
3354                         /* move patcher function pointer onto stack */
3355
3356                         disp = dseg_addaddress(cd, pref->patcher);
3357                         M_ALD(REG_ITMP3, REG_PV, disp);
3358                         M_AST(REG_ITMP3, REG_SP, 0 * 8);
3359
3360                         disp = dseg_addaddress(cd, asm_patcher_wrapper);
3361                         M_ALD(REG_ITMP3, REG_PV, disp);
3362                         M_MTCTR(REG_ITMP3);
3363                         M_RTS;
3364                 }
3365         }
3366
3367         codegen_finish(jd);
3368
3369         return code->entrypoint;
3370 }
3371
3372
3373
3374
3375 /*
3376  * These are local overrides for various environment variables in Emacs.
3377  * Please do not remove this and leave it at the end of the file, where
3378  * Emacs will automagically detect them.
3379  * ---------------------------------------------------------------------
3380  * Local variables:
3381  * mode: c
3382  * indent-tabs-mode: t
3383  * c-basic-offset: 4
3384  * tab-width: 4
3385  * End:
3386  * vim:noexpandtab:sw=4:ts=4:
3387  */