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 5880 2006-10-31 13:40:55Z tbfg $
  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                         gen_resolvebranch((u1*) cd->mcodebase + brefs->branchpos,
 338                                           brefs->branchpos,
 339                                                           bptr->mpc);
 340                         }
 341                 }
 342
 343                 /* handle replacement points */
 344
 345 #if 0
 346                 if (bptr->bitflags & BBFLAG_REPLACEMENT) {
 347                         replacementpoint->pc = (u1*)(ptrint)bptr->mpc; /* will be resolved later */
 348
 349                         replacementpoint++;
 350                 }
 351 #endif
 352
 353                 /* copy interface registers to their destination */
 354
 355                 len = bptr->indepth;
 356                 MCODECHECK(64+len);
 357
 358 #if defined(ENABLE_LSRA)
 359                 if (opt_lsra) {
 360                         while (len) {
 361                                 len--;
 362                                 var = VAR(bptr->invars[len]);
 363                                 if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 364                                         /* d = reg_of_var(m, var, REG_ITMP1); */
 365                                         if (!(var->flags & INMEMORY))
 366                                                 d = var->vv.regoff;
 367                                         else
 368                                                 d = REG_ITMP1;
 369                                         M_INTMOVE(REG_ITMP1, d);
 370                                         emit_store(jd, NULL, var, d);
 371                                 }
 372                         }
 373                 } else {
 374 #endif
 375                 while (len) {
 376                         len--;
 377                         var = VAR(bptr->invars[len]);
 378                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 379                                 d = codegen_reg_of_var(0, var, REG_ITMP1);
 380                                 M_INTMOVE(REG_ITMP1, d);
 381                                 emit_store(jd, NULL, var, d);
 382                         }
 383                         else {
 384                                 assert((var->flags & INOUT));
 385                         }
 386                 }
 387
 388 #if defined(ENABLE_LSRA)
 389                 }
 390 #endif
 391                 /* walk through all instructions */
 392
 393                 len = bptr->icount;
 394                 currentline = 0;
 395
 396                 for (iptr = bptr->iinstr; len > 0; len--, iptr++) {
 397                         if (iptr->line != currentline) {
 398                                 dseg_addlinenumber(cd, iptr->line);
 399                                 currentline = iptr->line;
 400                         }
 401
 402                         MCODECHECK(64);   /* an instruction usually needs < 64 words      */
 403
 404                         switch (iptr->opc) {
 405                         case ICMD_NOP:    /* ...  ==> ...                                 */
 406                         case ICMD_INLINE_START:
 407                         case ICMD_INLINE_END:
 408                                 break;
 409
 410                 case ICMD_CHECKNULL:  /* ..., objectref  ==> ..., objectref           */
 411
 412                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 413                         M_TST(s1);
 414                         M_BEQ(0);
 415                         codegen_add_nullpointerexception_ref(cd);
 416                         break;
 417
 418                 /* constant operations ************************************************/
 419
 420                 case ICMD_ICONST:     /* ...  ==> ..., constant                       */
 421
 422                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 423                         ICONST(d, iptr->sx.val.i);
 424                         emit_store_dst(jd, iptr, d);
 425                         break;
 426
 427                 case ICMD_LCONST:     /* ...  ==> ..., constant                       */
 428
 429                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 430                         LCONST(d, iptr->sx.val.l);
 431                         emit_store_dst(jd, iptr, d);
 432                         break;
 433
 434                 case ICMD_FCONST:     /* ...  ==> ..., constant                       */
 435
 436                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 437                         a = dseg_addfloat(cd, iptr->sx.val.f);
 438                         M_FLD(d, REG_PV, a);
 439                         emit_store_dst(jd, iptr, d);
 440                         break;
 441
 442                 case ICMD_DCONST:     /* ...  ==> ..., constant                       */
 443
 444                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 445                         a = dseg_adddouble(cd, iptr->sx.val.d);
 446                         M_DLD(d, REG_PV, a);
 447                         emit_store_dst(jd, iptr, d);
 448                         break;
 449
 450                 case ICMD_ACONST:     /* ...  ==> ..., constant                       */
 451                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 452                         disp = dseg_addaddress(cd, iptr->sx.val.anyptr);
 453
 454                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
 455                                 codegen_addpatchref(cd, PATCHER_aconst,
 456                                                                         iptr->sx.val.c.ref,
 457                                                                     disp);
 458
 459                                 if (opt_showdisassemble)
 460                                         M_NOP;
 461                         }
 462
 463                         M_ALD(d, REG_PV, disp);
 464                         emit_store_dst(jd, iptr, d);
 465                         break;
 466
 467
 468                 /* load/store/copy/move operations ************************************/
 469
 470                 case ICMD_ILOAD:      /* ...  ==> ..., content of local variable      */
 471                 case ICMD_ALOAD:      /* s1.localindex = local variable               */
 472                 case ICMD_LLOAD:
 473                 case ICMD_FLOAD:      /* ...  ==> ..., content of local variable      */
 474                 case ICMD_DLOAD:      /* ...  ==> ..., content of local variable      */
 475                 case ICMD_ISTORE:     /* ..., value  ==> ...                          */
 476                 case ICMD_ASTORE:     /* dst.localindex = local variable              */
 477                 case ICMD_LSTORE:
 478                 case ICMD_FSTORE:     /* ..., value  ==> ...                          */
 479                 case ICMD_DSTORE:     /* ..., value  ==> ...                          */
 480                 case ICMD_COPY:
 481                 case ICMD_MOVE:
 482
 483                         emit_copy(jd, iptr, VAROP(iptr->s1), VAROP(iptr->dst));
 484                         break;
 485
 486
 487                 /* pop operations *****************************************************/
 488
 489                 /* attention: double and longs are only one entry in CACAO ICMDs      */
 490
 491                 case ICMD_POP:        /* ..., value  ==> ...                          */
 492                 case ICMD_POP2:       /* ..., value, value  ==> ...                   */
 493
 494                         break;
 495
 496
 497                 /* integer operations *************************************************/
 498
 499                 case ICMD_INEG:       /* ..., value  ==> ..., - value                 */
 500
 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                         emit_store_dst(jd, iptr, d);
 505                         break;
 506
 507                 case ICMD_LNEG:       /* ..., value  ==> ..., - value                 */
 508
 509                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 510                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 511                         M_NEG(s1, d); /* XXX */
 512                         emit_store_dst(jd, iptr, d);
 513                         break;
 514
 515                 case ICMD_I2L:        /* ..., value  ==> ..., value                   */
 516
 517                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 518                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 519                         M_INTMOVE(s1, d);
 520                         emit_store_dst(jd, iptr, d);
 521                         break;
 522
 523                 case ICMD_L2I:        /* ..., value  ==> ..., value                   */
 524
 525                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 526                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 527                         M_ISEXT(s1, d);
 528                         emit_store_dst(jd, iptr, d);
 529                         break;
 530
 531                 case ICMD_INT2BYTE:   /* ..., value  ==> ..., value                   */
 532
 533                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 534                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 535                         M_BSEXT(s1, d);
 536                         emit_store_dst(jd, iptr, d);
 537                         break;
 538
 539                 case ICMD_INT2CHAR:   /* ..., value  ==> ..., value                   */
 540
 541                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 542                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 543                         M_CZEXT(s1, d);
 544                         emit_store_dst(jd, iptr, d);
 545                         break;
 546
 547                 case ICMD_INT2SHORT:  /* ..., value  ==> ..., value                   */
 548
 549                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 550                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 551                         M_SSEXT(s1, d);
 552                         emit_store_dst(jd, iptr, d);
 553                         break;
 554
 555
 556                 case ICMD_IADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 557
 558                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 559                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 560                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 561                         M_IADD(s1, s2, d);
 562                         M_EXTSW(d,d);
 563                         emit_store_dst(jd, iptr, d);
 564                         break;
 565
 566                 case ICMD_IINC:
 567                 case ICMD_IADDCONST:
 568
 569                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 570                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 571                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767)) {
 572                                 M_IADD_IMM(s1, iptr->sx.val.i, d);
 573                         } else {
 574                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 575                                 M_IADD(s1, REG_ITMP2, d);
 576                         }
 577                         M_EXTSW(d,d);
 578                         emit_store_dst(jd, iptr, d);
 579                         break;
 580
 581                 case ICMD_LADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 582
 583                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 584                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 585                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 586                         M_LADD(s1, s2, d);
 587                         emit_store_dst(jd, iptr, d);
 588                         break;
 589
 590                 case ICMD_LADDCONST:  /* ..., value  ==> ..., value + constant        */
 591                                       /* sx.val.l = constant                          */
 592
 593                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 594                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 595                         /* XXX check me */
 596                         if ((iptr->sx.val.l >= -32768) && (iptr->sx.val.l <= 32767)) {
 597                                 M_LADD_IMM(s1, iptr->sx.val.l, d);
 598                         } else {
 599                                 LCONST(REG_ITMP2, iptr->sx.val.l);
 600                                 M_LADD(s1, REG_ITMP2, d);
 601                         }
 602                         emit_store_dst(jd, iptr, d);
 603                         break;
 604
 605                 case ICMD_ISUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 606
 607                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 608                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 609                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 610                         M_SUB(s1, s2, d);
 611                         emit_store_dst(jd, iptr, d);
 612                         break;
 613
 614                 case ICMD_ISUBCONST:  /* ..., value  ==> ..., value + constant        */
 615                                       /* sx.val.i = constant                          */
 616
 617                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 618                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 619                         if ((iptr->sx.val.i >= -32767) && (iptr->sx.val.i <= 32768)) {
 620                                 M_IADD_IMM(s1, -iptr->sx.val.i, d);
 621                         } else {
 622                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 623                                 M_SUB(s1, REG_ITMP2, d);
 624                         }
 625                         emit_store_dst(jd, iptr, d);
 626                         break;
 627
 628                 case ICMD_LSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 629
 630                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 631                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 632                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 633                         M_SUB(s1, s2, d);
 634                         emit_store_dst(jd, iptr, d);
 635                         break;
 636
 637                 case ICMD_LSUBCONST:  /* ..., value  ==> ..., value - constant        */
 638                                       /* sx.val.l = constant                          */
 639
 640                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 641                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 642                         /* XXX check me */
 643                         if ((iptr->sx.val.l >= -32768) && (iptr->sx.val.l <= 32767)) {
 644                                 M_LADD_IMM(s1, -iptr->sx.val.l, d);
 645                         } else {
 646                                 LCONST(REG_ITMP2, iptr->sx.val.l);
 647                                 M_SUB(s1, REG_ITMP2, d);
 648                         }
 649                         emit_store_dst(jd, iptr, d);
 650                         break;
 651
 652                 case ICMD_IDIV:
 653                 case ICMD_LDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 654
 655                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 656                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 657                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 658                         M_TST(s2);
 659                         M_BEQ(0);
 660                         codegen_add_arithmeticexception_ref(cd);
 661
 662                         M_DIV(s1, s2, d);
 663
 664                         emit_store_dst(jd, iptr, d);
 665                         break;
 666
 667                 case ICMD_IREM:
 668                 case ICMD_LREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 669                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 670                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 671                         M_TST(s2);
 672                         M_BEQ(0);
 673                         codegen_add_arithmeticexception_ref(cd);
 674
 675                         /* FIXME s1 == -2^63 && s2 == -1 does not work that way */
 676                         M_DIV(s1, s2,  REG_ITMP3);
 677                         M_MUL(REG_ITMP3, s2, REG_ITMP2);
 678                         M_SUB(s1, REG_ITMP2,  REG_ITMP3);
 679                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 680                         M_MOV(REG_ITMP3, d);
 681                         emit_store_dst(jd, iptr, REG_ITMP1);
 682                         break;
 683
 684                 case ICMD_IMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 685
 686                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 687                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 688                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 689                         M_MUL(s1, s2, d);
 690                         emit_store_dst(jd, iptr, d);
 691                         break;
 692
 693                 case ICMD_IMULCONST:  /* ..., value  ==> ..., value * constant        */
 694                                       /* sx.val.i = constant                          */
 695
 696                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 697                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 698                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767))
 699                                 M_MUL_IMM(s1, iptr->sx.val.i, d);
 700                         else {
 701                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 702                                 M_MUL(s1, REG_ITMP3, d);
 703                         }
 704                         emit_store_dst(jd, iptr, d);
 705                         break;
 706
 707                 case ICMD_IDIVPOW2:   /* ..., value  ==> ..., value << constant       */
 708
 709                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 710                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 711                         M_SRA_IMM(s1, iptr->sx.val.i, d);
 712                         M_ADDZE(d, d);
 713                         emit_store_dst(jd, iptr, d);
 714                         break;
 715
 716                 case ICMD_ISHL:       /* ..., val1, val2  ==> ..., val1 << val2       */
 717
 718                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 719                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 720                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 721                         M_AND_IMM(s2, 0x1f, REG_ITMP3);
 722                         M_SLL(s1, REG_ITMP3, d);
 723                         emit_store_dst(jd, iptr, d);
 724                         break;
 725
 726                 case ICMD_ISHLCONST:  /* ..., value  ==> ..., value << constant       */
 727                                       /* sx.val.i = constant                             */
 728
 729                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 730                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 731                         M_SLL_IMM(s1, iptr->sx.val.i & 0x1f, d);
 732                         emit_store_dst(jd, iptr, d);
 733                         break;
 734
 735                 case ICMD_ISHR:       /* ..., val1, val2  ==> ..., val1 >> val2       */
 736
 737                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 738                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 739                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 740                         M_AND_IMM(s2, 0x1f, REG_ITMP3);
 741                         M_SRA(s1, REG_ITMP3, d);
 742                         emit_store_dst(jd, iptr, d);
 743                         break;
 744
 745                 case ICMD_ISHRCONST:  /* ..., value  ==> ..., value >> constant       */
 746                                       /* sx.val.i = constant                             */
 747
 748                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 749                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 750                         M_SRA_IMM(s1, iptr->sx.val.i & 0x1f, d);
 751                         emit_store_dst(jd, iptr, d);
 752                         break;
 753
 754                 case ICMD_IUSHR:      /* ..., val1, val2  ==> ..., val1 >>> val2      */
 755
 756                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 757                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 758                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 759                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 760                         M_SRL(s1, REG_ITMP2, d);
 761                         emit_store_dst(jd, iptr, d);
 762                         break;
 763
 764                 case ICMD_IUSHRCONST: /* ..., value  ==> ..., value >>> constant      */
 765                                       /* sx.val.i = constant                             */
 766
 767                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 768                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 769                         if (iptr->sx.val.i & 0x1f) {
 770                                 M_SRL_IMM(s1, iptr->sx.val.i & 0x1f, d);
 771                         } else {
 772                                 M_INTMOVE(s1, d);
 773                         }
 774                         emit_store_dst(jd, iptr, d);
 775                         break;
 776
 777                 case ICMD_IAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 778                 case ICMD_LAND:
 779
 780                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 781                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 782                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 783                         M_AND(s1, s2, d);
 784                         emit_store_dst(jd, iptr, d);
 785                         break;
 786
 787                 case ICMD_IANDCONST:  /* ..., value  ==> ..., value & constant        */
 788                                       /* sx.val.i = constant                          */
 789
 790                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 791                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 792                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535)) {
 793                                 M_AND_IMM(s1, iptr->sx.val.i, d);
 794                                 }
 795                         /*
 796                         else if (iptr->sx.val.i == 0xffffff) {
 797                                 M_RLWINM(s1, 0, 8, 31, d);
 798                                 }
 799                         */
 800                         else {
 801                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 802                                 M_AND(s1, REG_ITMP3, d);
 803                         }
 804                         emit_store_dst(jd, iptr, d);
 805                         break;
 806
 807                 case ICMD_LANDCONST:  /* ..., value  ==> ..., value & constant        */
 808                                       /* sx.val.l = constant                          */
 809
 810                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 811                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 812                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
 813                                 M_AND_IMM(s1, iptr->sx.val.l, d);
 814                         /*
 815                         else if (iptr->sx.val.l == 0xffffff) {
 816                                 M_RLWINM(s1, 0, 8, 31, d);
 817                                 }
 818                         */
 819                         else {
 820                                 LCONST(REG_ITMP3, iptr->sx.val.l);
 821                                 M_AND(s1, REG_ITMP3, d);
 822                         }
 823                         emit_store_dst(jd, iptr, d);
 824                         break;
 825
 826                 case ICMD_IREMPOW2:   /* ..., value  ==> ..., value % constant        */
 827                                       /* sx.val.i = constant                             */
 828
 829                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 830                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 831                         M_MOV(s1, REG_ITMP2);
 832                         M_CMPI(s1, 0);
 833                         M_BGE(1 + 2*(iptr->sx.val.i >= 32768));
 834                         if (iptr->sx.val.i >= 32768) {
 835                                 M_ADDIS(REG_ZERO, iptr->sx.val.i >> 16, REG_ITMP2);
 836                                 M_OR_IMM(REG_ITMP2, iptr->sx.val.i, REG_ITMP2);
 837                                 M_IADD(s1, REG_ITMP2, REG_ITMP2);
 838                         } else {
 839                                 M_IADD_IMM(s1, iptr->sx.val.i, REG_ITMP2);
 840                         }
 841                         {
 842                                 int b=0, m = iptr->sx.val.i;
 843                                 while (m >>= 1)
 844                                         ++b;
 845                                 M_RLWINM(REG_ITMP2, 0, 0, 30-b, REG_ITMP2);
 846                         }
 847                         M_SUB(s1, REG_ITMP2, d);
 848                         emit_store_dst(jd, iptr, d);
 849                         break;
 850
 851                 case ICMD_IOR:        /* ..., val1, val2  ==> ..., val1 | val2        */
 852                 case ICMD_LOR:
 853
 854                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 855                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 856                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 857                         M_OR(s1, s2, d);
 858                         emit_store_dst(jd, iptr, d);
 859                         break;
 860
 861                 case ICMD_IORCONST:   /* ..., value  ==> ..., value | constant        */
 862                                       /* sx.val.i = constant                          */
 863
 864                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 865                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 866                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
 867                                 M_OR_IMM(s1, iptr->sx.val.i, d);
 868                         else {
 869                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 870                                 M_OR(s1, REG_ITMP3, d);
 871                         }
 872                         emit_store_dst(jd, iptr, d);
 873                         break;
 874
 875                 case ICMD_LORCONST:   /* ..., value  ==> ..., value | constant        */
 876                                       /* sx.val.l = constant                          */
 877
 878                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 879                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 880                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
 881                                 M_OR_IMM(s1, iptr->sx.val.l, d);
 882                         else {
 883                                 LCONST(REG_ITMP3, iptr->sx.val.l);
 884                                 M_OR(s1, REG_ITMP3, d);
 885                         }
 886                         emit_store_dst(jd, iptr, d);
 887                         break;
 888
 889
 890                 case ICMD_IXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
 891                 case ICMD_LXOR:
 892
 893                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 894                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 895                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 896                         M_XOR(s1, s2, d);
 897                         emit_store_dst(jd, iptr, d);
 898                         break;
 899
 900                 case ICMD_IXORCONST:  /* ..., value  ==> ..., value ^ constant        */
 901                                       /* sx.val.i = constant                          */
 902
 903                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 904                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 905                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
 906                                 M_XOR_IMM(s1, iptr->sx.val.i, d);
 907                         else {
 908                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 909                                 M_XOR(s1, REG_ITMP3, d);
 910                         }
 911                         emit_store_dst(jd, iptr, d);
 912                         break;
 913
 914                 case ICMD_LXORCONST:  /* ..., value  ==> ..., value ^ constant        */
 915                                       /* sx.val.l = constant                          */
 916
 917                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 918                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 919                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
 920                                 M_XOR_IMM(s1, iptr->sx.val.l, d);
 921                         else {
 922                                 LCONST(REG_ITMP3, iptr->sx.val.l);
 923                                 M_XOR(s1, REG_ITMP3, d);
 924                         }
 925                         emit_store_dst(jd, iptr, d);
 926                         break;
 927
 928                 case ICMD_LCMP:       /* ..., val1, val2  ==> ..., val1 cmp val2      */
 929
 930                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 931                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 932                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 933                         /* XXX implement me!!! */
 934                         emit_store_dst(jd, iptr, d);
 935                         break;
 936                         break;
 937
 938
 939                 /* floating operations ************************************************/
 940
 941                 case ICMD_FNEG:       /* ..., value  ==> ..., - value                 */
 942
 943                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 944                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
 945                         M_FMOVN(s1, d);
 946                         emit_store_dst(jd, iptr, d);
 947                         break;
 948
 949                 case ICMD_DNEG:       /* ..., value  ==> ..., - value                 */
 950
 951                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 952                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
 953                         M_FMOVN(s1, d);
 954                         emit_store_dst(jd, iptr, d);
 955                         break;
 956
 957                 case ICMD_FADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 958
 959                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 960                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 961                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
 962                         M_FADD(s1, s2, d);
 963                         emit_store_dst(jd, iptr, d);
 964                         break;
 965
 966                 case ICMD_DADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 967
 968                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 969                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 970                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
 971                         M_DADD(s1, s2, d);
 972                         emit_store_dst(jd, iptr, d);
 973                         break;
 974
 975                 case ICMD_FSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 976
 977                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 978                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 979                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
 980                         M_FSUB(s1, s2, d);
 981                         emit_store_dst(jd, iptr, d);
 982                         break;
 983
 984                 case ICMD_DSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 985
 986                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 987                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 988                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
 989                         M_DSUB(s1, s2, d);
 990                         emit_store_dst(jd, iptr, d);
 991                         break;
 992
 993                 case ICMD_FMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 994
 995                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 996                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
 997                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
 998                         M_FMUL(s1, s2, d);
 999                         emit_store_dst(jd, iptr, d);
1000                         break;
1001
1002                 case ICMD_DMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1003
1004                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1005                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1006                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1007                         M_DMUL(s1, s2, d);
1008                         emit_store_dst(jd, iptr, d);
1009                         break;
1010
1011                 case ICMD_FDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1012
1013                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1014                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1015                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1016                         M_FDIV(s1, s2, d);
1017                         emit_store_dst(jd, iptr, d);
1018                         break;
1019
1020                 case ICMD_DDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1021
1022                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1023                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1024                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1025                         M_DDIV(s1, s2, d);
1026                         emit_store_dst(jd, iptr, d);
1027                         break;
1028
1029                 case ICMD_F2I:       /* ..., value  ==> ..., (int) value              */
1030                 case ICMD_D2I:
1031
1032                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1033                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1034                         M_CLR(d);
1035                         disp = dseg_addfloat(cd, 0.0);
1036                         M_FLD(REG_FTMP2, REG_PV, disp);
1037                         M_FCMPU(s1, REG_FTMP2);
1038                         M_BNAN(4);
1039                         disp = dseg_adds4(cd, 0);
1040                         M_CVTDL_C(s1, REG_FTMP1);
1041                         M_LDA(REG_ITMP1, REG_PV, disp);
1042                         M_STFIWX(REG_FTMP1, 0, REG_ITMP1);
1043                         M_ILD(d, REG_PV, disp);
1044                         emit_store_dst(jd, iptr, d);
1045                         break;
1046
1047                 case ICMD_F2D:       /* ..., value  ==> ..., (double) value           */
1048
1049                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1050                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1051                         M_FLTMOVE(s1, d);
1052                         emit_store_dst(jd, iptr, d);
1053                         break;
1054
1055                 case ICMD_D2F:       /* ..., value  ==> ..., (double) value           */
1056
1057                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1058                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1059                         M_CVTDF(s1, d);
1060                         emit_store_dst(jd, iptr, d);
1061                         break;
1062
1063                 case ICMD_FCMPL:      /* ..., val1, val2  ==> ..., val1 fcmpg val2    */
1064                 case ICMD_DCMPL:      /* == => 0, < => 1, > => -1                     */
1065
1066
1067                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1068                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1069                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1070                         M_FCMPU(s2, s1);
1071                         M_IADD_IMM(REG_ZERO, -1, d);
1072                         M_BNAN(4);
1073                         M_BGT(3);
1074                         M_IADD_IMM(REG_ZERO, 0, d);
1075                         M_BGE(1);
1076                         M_IADD_IMM(REG_ZERO, 1, d);
1077                         emit_store_dst(jd, iptr, d);
1078                         break;
1079
1080                 case ICMD_FCMPG:      /* ..., val1, val2  ==> ..., val1 fcmpl val2    */
1081                 case ICMD_DCMPG:      /* == => 0, < => 1, > => -1                     */
1082
1083                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1084                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1085                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1086                         M_FCMPU(s1, s2);
1087                         M_IADD_IMM(REG_ZERO, 1, d);
1088                         M_BNAN(4);
1089                         M_BGT(3);
1090                         M_IADD_IMM(REG_ZERO, 0, d);
1091                         M_BGE(1);
1092                         M_IADD_IMM(REG_ZERO, -1, d);
1093                         emit_store_dst(jd, iptr, d);
1094                         break;
1095
1096                 case ICMD_IF_FCMPEQ:    /* ..., value, value ==> ...                  */
1097                 case ICMD_IF_DCMPEQ:
1098
1099                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1100                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1101                         M_FCMPU(s1, s2);
1102                         M_BNAN(1);
1103                         M_BEQ(0);
1104                         codegen_addreference(cd, iptr->dst.block);
1105                         break;
1106
1107                 case ICMD_IF_FCMPNE:    /* ..., value, value ==> ...                  */
1108                 case ICMD_IF_DCMPNE:
1109
1110                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1111                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1112                         M_FCMPU(s1, s2);
1113                         M_BNAN(0);
1114                         codegen_addreference(cd, iptr->dst.block);
1115                         M_BNE(0);
1116                         codegen_addreference(cd, iptr->dst.block);
1117                         break;
1118
1119
1120                 case ICMD_IF_FCMPL_LT:  /* ..., value, value ==> ...                  */
1121                 case ICMD_IF_DCMPL_LT:
1122
1123                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1124                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1125                         M_FCMPU(s1, s2);
1126                         M_BNAN(0);
1127                         codegen_addreference(cd, iptr->dst.block);
1128                         M_BLT(0);
1129                         codegen_addreference(cd, iptr->dst.block);
1130                         break;
1131
1132                 case ICMD_IF_FCMPL_GT:  /* ..., value, value ==> ...                  */
1133                 case ICMD_IF_DCMPL_GT:
1134
1135                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1136                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1137                         M_FCMPU(s1, s2);
1138                         M_BNAN(1);
1139                         M_BGT(0);
1140                         codegen_addreference(cd, iptr->dst.block);
1141                         break;
1142
1143                 case ICMD_IF_FCMPL_LE:  /* ..., value, value ==> ...                  */
1144                 case ICMD_IF_DCMPL_LE:
1145
1146                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1147                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1148                         M_FCMPU(s1, s2);
1149                         M_BNAN(0);
1150                         codegen_addreference(cd, iptr->dst.block);
1151                         M_BLE(0);
1152                         codegen_addreference(cd, iptr->dst.block);
1153                         break;
1154
1155                 case ICMD_IF_FCMPL_GE:  /* ..., value, value ==> ...                  */
1156                 case ICMD_IF_DCMPL_GE:
1157
1158                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1159                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1160                         M_FCMPU(s1, s2);
1161                         M_BNAN(1);
1162                         M_BGE(0);
1163                         codegen_addreference(cd, iptr->dst.block);
1164                         break;
1165
1166                 case ICMD_IF_FCMPG_LT:  /* ..., value, value ==> ...                  */
1167                 case ICMD_IF_DCMPG_LT:
1168
1169                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1170                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1171                         M_FCMPU(s1, s2);
1172                         M_BNAN(1);
1173                         M_BLT(0);
1174                         codegen_addreference(cd, iptr->dst.block);
1175                         break;
1176
1177                 case ICMD_IF_FCMPG_GT:  /* ..., value, value ==> ...                  */
1178                 case ICMD_IF_DCMPG_GT:
1179
1180                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1181                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1182                         M_FCMPU(s1, s2);
1183                         M_BNAN(0);
1184                         codegen_addreference(cd, iptr->dst.block);
1185                         M_BGT(0);
1186                         codegen_addreference(cd, iptr->dst.block);
1187                         break;
1188
1189                 case ICMD_IF_FCMPG_LE:  /* ..., value, value ==> ...                  */
1190                 case ICMD_IF_DCMPG_LE:
1191
1192                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1193                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1194                         M_FCMPU(s1, s2);
1195                         M_BNAN(1);
1196                         M_BLE(0);
1197                         codegen_addreference(cd, iptr->dst.block);
1198                         break;
1199
1200                 case ICMD_IF_FCMPG_GE:  /* ..., value, value ==> ...                  */
1201                 case ICMD_IF_DCMPG_GE:
1202
1203                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1204                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1205                         M_FCMPU(s1, s2);
1206                         M_BNAN(0);
1207                         codegen_addreference(cd, iptr->dst.block);
1208                         M_BGE(0);
1209                         codegen_addreference(cd, iptr->dst.block);
1210                         break;
1211
1212
1213                 /* memory operations **************************************************/
1214
1215                 case ICMD_ARRAYLENGTH: /* ..., arrayref  ==> ..., length              */
1216
1217                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1218                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1219                         gen_nullptr_check(s1);
1220                         M_ILD(d, s1, OFFSET(java_arrayheader, size));
1221                         emit_store_dst(jd, iptr, d);
1222                         break;
1223
1224                 case ICMD_BALOAD:     /* ..., arrayref, index  ==> ..., value         */
1225
1226                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1227                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1228                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1229                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1230                                 gen_nullptr_check(s1);
1231                                 gen_bound_check;
1232                         }
1233                         M_IADD_IMM(s2, OFFSET(java_chararray, data[0]), REG_ITMP2);
1234                         M_LBZX(d, s1, REG_ITMP2);
1235                         M_BSEXT(d, d);
1236                         emit_store_dst(jd, iptr, d);
1237                         break;
1238
1239                 case ICMD_CALOAD:     /* ..., arrayref, index  ==> ..., value         */
1240
1241                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1242                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1243                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1244                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1245                                 gen_nullptr_check(s1);
1246                                 gen_bound_check;
1247                         }
1248                         M_SLL_IMM(s2, 1, REG_ITMP2);
1249                         M_IADD_IMM(REG_ITMP2, OFFSET(java_chararray, data[0]), REG_ITMP2);
1250                         M_LHAX(d, s1, REG_ITMP2);
1251                         emit_store_dst(jd, iptr, d);
1252                         break;
1253
1254                 case ICMD_SALOAD:     /* ..., arrayref, index  ==> ..., value         */
1255
1256                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1257                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1258                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1259                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1260                                 gen_nullptr_check(s1);
1261                                 gen_bound_check;
1262                         }
1263                         M_SLL_IMM(s2, 1, REG_ITMP2);
1264                         M_IADD_IMM(REG_ITMP2, OFFSET(java_shortarray, data[0]), REG_ITMP2);
1265                         M_LHAX(d, s1, REG_ITMP2);
1266                         emit_store_dst(jd, iptr, d);
1267                         break;
1268
1269                 case ICMD_IALOAD:     /* ..., arrayref, index  ==> ..., value         */
1270
1271                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1272                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1273                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1274                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1275                                 gen_nullptr_check(s1);
1276                                 gen_bound_check;
1277                         }
1278                         M_SLL_IMM(s2, 2, REG_ITMP2);
1279                         M_IADD_IMM(REG_ITMP2, OFFSET(java_intarray, data[0]), REG_ITMP2);
1280                         M_LWZX(d, s1, REG_ITMP2);
1281                         emit_store_dst(jd, iptr, d);
1282                         break;
1283
1284                 case ICMD_LALOAD:     /* ..., arrayref, index  ==> ..., value         */
1285
1286                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1287                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1288                         d = codegen_reg_of_dst(jd, iptr, PACK_REGS(REG_ITMP2, REG_ITMP1));
1289                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1290                                 gen_nullptr_check(s1);
1291                                 gen_bound_check;
1292                         }
1293                         M_SLL_IMM(s2, 3, REG_ITMP2);
1294                         M_IADD(s1, REG_ITMP2, REG_ITMP2);
1295                         M_LLD_INTERN(d, REG_ITMP2, OFFSET(java_longarray, data[0]));
1296                         emit_store_dst(jd, iptr, d);
1297                         break;
1298
1299                 case ICMD_FALOAD:     /* ..., arrayref, index  ==> ..., value         */
1300
1301                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1302                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1303                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1304                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1305                                 gen_nullptr_check(s1);
1306                                 gen_bound_check;
1307                         }
1308                         M_SLL_IMM(s2, 2, REG_ITMP2);
1309                         M_IADD_IMM(REG_ITMP2, OFFSET(java_floatarray, data[0]), REG_ITMP2);
1310                         M_LFSX(d, s1, REG_ITMP2);
1311                         emit_store_dst(jd, iptr, d);
1312                         break;
1313
1314                 case ICMD_DALOAD:     /* ..., arrayref, index  ==> ..., value         */
1315
1316                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1317                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1318                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1319                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1320                                 gen_nullptr_check(s1);
1321                                 gen_bound_check;
1322                         }
1323                         M_SLL_IMM(s2, 3, REG_ITMP2);
1324                         M_IADD_IMM(REG_ITMP2, OFFSET(java_doublearray, data[0]), REG_ITMP2);
1325                         M_LFDX(d, s1, REG_ITMP2);
1326                         emit_store_dst(jd, iptr, d);
1327                         break;
1328
1329                 case ICMD_AALOAD:     /* ..., arrayref, index  ==> ..., value         */
1330
1331                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1332                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1333                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1334                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1335                                 gen_nullptr_check(s1);
1336                                 gen_bound_check;
1337                         }
1338                         M_SLL_IMM(s2, 3, REG_ITMP2);
1339                         M_IADD_IMM(REG_ITMP2, OFFSET(java_objectarray, data[0]), REG_ITMP2);
1340                         M_ALDX(d, s1, REG_ITMP2);
1341                         emit_store_dst(jd, iptr, d);
1342                         break;
1343
1344
1345                 case ICMD_BASTORE:    /* ..., arrayref, index, value  ==> ...         */
1346
1347                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1348                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1349                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1350                                 gen_nullptr_check(s1);
1351                                 gen_bound_check;
1352                         }
1353                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1354                         M_IADD_IMM(s2, OFFSET(java_bytearray, data[0]), REG_ITMP2);
1355                         M_STBX(s3, s1, REG_ITMP2);
1356                         break;
1357
1358                 case ICMD_CASTORE:    /* ..., arrayref, index, value  ==> ...         */
1359
1360                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1361                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1362                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1363                                 gen_nullptr_check(s1);
1364                                 gen_bound_check;
1365                         }
1366                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1367                         M_SLL_IMM(s2, 1, REG_ITMP2);
1368                         M_IADD_IMM(REG_ITMP2, OFFSET(java_chararray, data[0]), REG_ITMP2);
1369                         M_STHX(s3, s1, REG_ITMP2);
1370                         break;
1371
1372                 case ICMD_SASTORE:    /* ..., arrayref, index, value  ==> ...         */
1373
1374                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1375                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1376                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1377                                 gen_nullptr_check(s1);
1378                                 gen_bound_check;
1379                         }
1380                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1381                         M_SLL_IMM(s2, 1, REG_ITMP2);
1382                         M_IADD_IMM(REG_ITMP2, OFFSET(java_shortarray, data[0]), REG_ITMP2);
1383                         M_STHX(s3, s1, REG_ITMP2);
1384                         break;
1385
1386                 case ICMD_IASTORE:    /* ..., arrayref, index, value  ==> ...         */
1387
1388                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1389                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1390                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1391                                 gen_nullptr_check(s1);
1392                                 gen_bound_check;
1393                         }
1394                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1395                         M_SLL_IMM(s2, 2, REG_ITMP2);
1396                         M_IADD_IMM(REG_ITMP2, OFFSET(java_intarray, data[0]), REG_ITMP2);
1397                         M_STWX(s3, s1, REG_ITMP2);
1398                         break;
1399
1400                 case ICMD_LASTORE:    /* ..., arrayref, index, value  ==> ...         */
1401
1402                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1403                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1404                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1405                                 gen_nullptr_check(s1);
1406                                 gen_bound_check;
1407                         }
1408                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1409                         M_SLL_IMM(s2, 3, REG_ITMP2);
1410                         M_IADD_IMM(REG_ITMP2, OFFSET(java_longarray, data[0]), REG_ITMP2);
1411                         M_LST(s3, s1, REG_ITMP2);
1412                         break;
1413
1414                 case ICMD_FASTORE:    /* ..., arrayref, index, value  ==> ...         */
1415
1416                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1417                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1418                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1419                                 gen_nullptr_check(s1);
1420                                 gen_bound_check;
1421                         }
1422                         s3 = emit_load_s3(jd, iptr, REG_FTMP3);
1423                         M_SLL_IMM(s2, 2, REG_ITMP2);
1424                         M_IADD_IMM(REG_ITMP2, OFFSET(java_floatarray, data[0]), REG_ITMP2);
1425                         M_STFSX(s3, s1, REG_ITMP2);
1426                         break;
1427
1428                 case ICMD_DASTORE:    /* ..., arrayref, index, value  ==> ...         */
1429
1430                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1431                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1432                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1433                                 gen_nullptr_check(s1);
1434                                 gen_bound_check;
1435                         }
1436                         s3 = emit_load_s3(jd, iptr, REG_FTMP3);
1437                         M_SLL_IMM(s2, 3, REG_ITMP2);
1438                         M_IADD_IMM(REG_ITMP2, OFFSET(java_doublearray, data[0]), REG_ITMP2);
1439                         M_STFDX(s3, s1, REG_ITMP2);
1440                         break;
1441
1442                 case ICMD_AASTORE:    /* ..., arrayref, index, value  ==> ...         */
1443
1444                         s1 = emit_load_s1(jd, iptr, rd->argintregs[0]);
1445                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1446                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1447                                 gen_nullptr_check(s1);
1448                                 gen_bound_check;
1449                         }
1450                         s3 = emit_load_s3(jd, iptr, rd->argintregs[1]);
1451
1452                         disp = dseg_addaddress(cd, BUILTIN_canstore);
1453                         M_ALD(REG_ITMP3, REG_PV, disp);
1454                         M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
1455                         M_MTCTR(REG_ITMP3);
1456
1457                         M_INTMOVE(s1, rd->argintregs[0]);
1458                         M_INTMOVE(s3, rd->argintregs[1]);
1459
1460                         M_JSR;
1461                         M_TST(REG_RESULT);
1462                         M_BEQ(0);
1463                         codegen_add_arraystoreexception_ref(cd);
1464
1465                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1466                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1467                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1468                         M_SLL_IMM(s2, 3, REG_ITMP2);
1469                         M_IADD_IMM(REG_ITMP2, OFFSET(java_objectarray, data[0]), REG_ITMP2);
1470                         M_ASTX(s3, s1, REG_ITMP2);
1471                         break;
1472
1473
1474                 case ICMD_GETSTATIC:  /* ...  ==> ..., value                          */
1475
1476                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1477                                 uf = iptr->sx.s23.s3.uf;
1478
1479                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1480                                 disp = dseg_addaddress(cd, NULL);
1481
1482                                 codegen_addpatchref(cd, PATCHER_get_putstatic,
1483                                                                         iptr->sx.s23.s3.uf, disp);
1484
1485                                 if (opt_showdisassemble)
1486                                         M_NOP;
1487
1488                         } else {
1489                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1490
1491                                 fieldtype = fi->type;
1492                                 disp = dseg_addaddress(cd, &(fi->value));
1493
1494                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1495                                         codegen_addpatchref(cd, PATCHER_clinit, fi->class, disp);
1496
1497                                         if (opt_showdisassemble)
1498                                                 M_NOP;
1499                                 }
1500                         }
1501
1502                         M_ALD(REG_ITMP1, REG_PV, disp);
1503                         switch (fieldtype) {
1504                         case TYPE_INT:
1505                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1506                                 M_ILD_INTERN(d, REG_ITMP1, 0);
1507                                 break;
1508                         case TYPE_LNG:
1509                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1510                                 M_LLD(d, REG_ITMP1, 0);
1511                                 break;
1512                         case TYPE_ADR:
1513                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1514                                 M_ALD_INTERN(d, REG_ITMP1, 0);
1515                                 break;
1516                         case TYPE_FLT:
1517                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1518                                 M_FLD_INTERN(d, REG_ITMP1, 0);
1519                                 break;
1520                         case TYPE_DBL:
1521                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1522                                 M_DLD_INTERN(d, REG_ITMP1, 0);
1523                                 break;
1524                         }
1525                         emit_store_dst(jd, iptr, d);
1526                         break;
1527
1528                 case ICMD_PUTSTATIC:  /* ..., value  ==> ...                          */
1529
1530
1531                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1532                                 uf = iptr->sx.s23.s3.uf;
1533
1534                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1535                                 disp = dseg_addaddress(cd, NULL);
1536
1537                                 codegen_addpatchref(cd, PATCHER_get_putstatic,
1538                                                                         iptr->sx.s23.s3.uf, disp);
1539
1540                                 if (opt_showdisassemble)
1541                                         M_NOP;
1542
1543                         } else {
1544                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1545
1546                                 fieldtype = fi->type;
1547                                 disp = dseg_addaddress(cd, &(fi->value));
1548
1549                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1550                                         codegen_addpatchref(cd, PATCHER_clinit, fi->class, disp);
1551
1552                                         if (opt_showdisassemble)
1553                                                 M_NOP;
1554                                 }
1555                         }
1556
1557                         M_ALD(REG_ITMP1, REG_PV, disp);
1558                         switch (fieldtype) {
1559                         case TYPE_INT:
1560                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1561                                 M_IST_INTERN(s1, REG_ITMP1, 0);
1562                                 break;
1563                         case TYPE_LNG:
1564                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1565                                 M_LST_INTERN(s1, REG_ITMP1, 0);
1566                                 break;
1567                         case TYPE_ADR:
1568                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1569                                 M_AST_INTERN(s1, REG_ITMP1, 0);
1570                                 break;
1571                         case TYPE_FLT:
1572                                 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1573                                 M_FST_INTERN(s1, REG_ITMP1, 0);
1574                                 break;
1575                         case TYPE_DBL:
1576                                 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1577                                 M_DST_INTERN(s1, REG_ITMP1, 0);
1578                                 break;
1579                         }
1580                         break;
1581
1582
1583                 case ICMD_GETFIELD:   /* ...  ==> ..., value                          */
1584
1585                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1586                         gen_nullptr_check(s1);
1587
1588                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1589                                 uf = iptr->sx.s23.s3.uf;
1590                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1591                                 disp = 0;
1592
1593                                 codegen_addpatchref(cd, PATCHER_get_putfield, uf, 0);
1594
1595                                 if (opt_showdisassemble)
1596                                         M_NOP;
1597
1598                         } else {
1599                                 fi = iptr->sx.s23.s3.fmiref->p.field;
1600                                 fieldtype = fi->type;
1601                                 disp = fi->offset;
1602                         }
1603
1604                         switch (fieldtype) {
1605                         case TYPE_INT:
1606                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1607                                 M_ILD(d, s1, disp);
1608                                 break;
1609                         case TYPE_LNG:
1610                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1611                                 M_LLD(d, s1, disp);
1612                                 break;
1613                         case TYPE_ADR:
1614                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1615                                 M_ALD(d, s1, disp);
1616                                 break;
1617                         case TYPE_FLT:
1618                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1619                                 M_FLD(d, s1, disp);
1620                                 break;
1621                         case TYPE_DBL:
1622                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1623                                 M_DLD(d, s1, disp);
1624                                 break;
1625                         }
1626                         emit_store_dst(jd, iptr, d);
1627                         break;
1628
1629                 case ICMD_PUTFIELD:   /* ..., value  ==> ...                          */
1630
1631                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1632                         gen_nullptr_check(s1);
1633
1634                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1635                                 uf        = iptr->sx.s23.s3.uf;
1636                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1637                                 disp      = 0;
1638                         }
1639                         else {
1640                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1641                                 fieldtype = fi->type;
1642                                 disp      = fi->offset;
1643                         }
1644
1645                         if (IS_INT_LNG_TYPE(fieldtype)) {
1646                                 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1647                         }
1648                         else
1649                                 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1650
1651                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1652                                 codegen_addpatchref(cd, PATCHER_get_putfield, uf, 0);
1653
1654                                 if (opt_showdisassemble)
1655                                         M_NOP;
1656                         }
1657
1658
1659                         switch (fieldtype) {
1660                         case TYPE_INT:
1661                                 M_IST(s2, s1, disp);
1662                                 break;
1663                         case TYPE_LNG:
1664                                 M_LST(s2, s1, disp);
1665                                 break;
1666                         case TYPE_ADR:
1667                                 M_AST(s2, s1, disp);
1668                                 break;
1669                         case TYPE_FLT:
1670                                 M_FST(s2, s1, disp);
1671                                 break;
1672                         case TYPE_DBL:
1673                                 M_DST(s2, s1, disp);
1674                                 break;
1675                         }
1676                         break;
1677
1678
1679                 /* branch operations **************************************************/
1680
1681                 case ICMD_ATHROW:       /* ..., objectref ==> ... (, objectref)       */
1682
1683                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1684                         M_LNGMOVE(s1, REG_ITMP1_XPTR);
1685
1686 #ifdef ENABLE_VERIFIER
1687                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1688                                 codegen_addpatchref(cd, PATCHER_athrow_areturn,
1689                                                                         iptr->sx.s23.s2.uc, 0);
1690
1691                                 if (opt_showdisassemble)
1692                                         M_NOP;
1693                         }
1694 #endif /* ENABLE_VERIFIER */
1695
1696                         disp = dseg_addaddress(cd, asm_handle_exception);
1697                         M_ALD(REG_ITMP2, REG_PV, disp);
1698                         M_MTCTR(REG_ITMP2);
1699
1700                         if (jd->isleafmethod) M_MFLR(REG_ITMP3);         /* save LR        */
1701                         M_BL(0);                                        /* get current PC */
1702                         M_MFLR(REG_ITMP2_XPC);
1703                         if (jd->isleafmethod) M_MTLR(REG_ITMP3);         /* restore LR     */
1704                         M_RTS;                                          /* jump to CTR    */
1705
1706                         ALIGNCODENOP;
1707                         break;
1708
1709                 case ICMD_GOTO:         /* ... ==> ...                                */
1710                 case ICMD_RET:          /* ... ==> ...                                */
1711
1712                         M_BR(0);
1713                         codegen_addreference(cd, iptr->dst.block);
1714                         ALIGNCODENOP;
1715                         break;
1716
1717                 case ICMD_JSR:          /* ... ==> ...                                */
1718
1719                         M_BR(0);
1720                         codegen_addreference(cd, iptr->sx.s23.s3.jsrtarget.block);
1721                         ALIGNCODENOP;
1722                         break;
1723
1724                 case ICMD_IFNULL:       /* ..., value ==> ...                         */
1725
1726                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1727                         M_TST(s1);
1728                         M_BEQ(0);
1729                         codegen_addreference(cd, iptr->dst.block);
1730                         break;
1731
1732                 case ICMD_IFNONNULL:    /* ..., value ==> ...                         */
1733
1734                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1735                         M_TST(s1);
1736                         M_BNE(0);
1737                         codegen_addreference(cd, iptr->dst.block);
1738                         break;
1739
1740                 case ICMD_IFLT:
1741                 case ICMD_IFLE:
1742                 case ICMD_IFNE:
1743                 case ICMD_IFGT:
1744                 case ICMD_IFGE:
1745                 case ICMD_IFEQ:         /* ..., value ==> ...                         */
1746
1747                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1748                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767))
1749                                 M_CMPI(s1, iptr->sx.val.i);
1750                         else {
1751                                 ICONST(REG_ITMP2, iptr->sx.val.i);
1752                                 M_CMP(s1, REG_ITMP2);
1753                         }
1754                         switch (iptr->opc) {
1755                         case ICMD_IFLT:
1756                                 M_BLT(0);
1757                                 break;
1758                         case ICMD_IFLE:
1759                                 M_BLE(0);
1760                                 break;
1761                         case ICMD_IFNE:
1762                                 M_BNE(0);
1763                                 break;
1764                         case ICMD_IFGT:
1765                                 M_BGT(0);
1766                                 break;
1767                         case ICMD_IFGE:
1768                                 M_BGE(0);
1769                                 break;
1770                         case ICMD_IFEQ:
1771                                 M_BEQ(0);
1772                                 break;
1773                         }
1774                         codegen_addreference(cd, iptr->dst.block);
1775                         break;
1776
1777                 #if 0
1778                 case ICMD_IF_LEQ:       /* ..., value ==> ...                         */
1779
1780                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1781                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1782                         if (iptr->sx.val.l == 0) {
1783                                 M_OR_TST(s1, s2, REG_ITMP3);
1784                         } else if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
1785                                 M_XOR_IMM(s2, 0, REG_ITMP2);
1786                                 M_XOR_IMM(s1, iptr->sx.val.l & 0xffff, REG_ITMP1);
1787                                 M_OR_TST(REG_ITMP1, REG_ITMP2, REG_ITMP3);
1788                         } else {
1789                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1790                                 M_XOR(s1, REG_ITMP3, REG_ITMP1);
1791                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1792                                 M_XOR(s2, REG_ITMP3, REG_ITMP2);
1793                                 M_OR_TST(REG_ITMP1, REG_ITMP2, REG_ITMP3);
1794                         }
1795                         M_BEQ(0);
1796                         codegen_addreference(cd, iptr->dst.block);
1797                         break;
1798
1799                 case ICMD_IF_LLT:       /* ..., value ==> ...                         */
1800                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1801                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1802                         if (iptr->sx.val.l == 0) {
1803                                 /* if high word is less than zero, the whole long is too */
1804                                 M_CMPI(s2, 0);
1805                         } else if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
1806                                 M_CMPI(s2, 0);
1807                                 M_BLT(0);
1808                                 codegen_addreference(cd, iptr->dst.block);
1809                                 M_BGT(2);
1810                                 M_CMPUI(s1, iptr->sx.val.l & 0xffff);
1811                         } else {
1812                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1813                                 M_CMP(s2, REG_ITMP3);
1814                                 M_BLT(0);
1815                                 codegen_addreference(cd, iptr->dst.block);
1816                                 M_BGT(3);
1817                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1818                                 M_CMPU(s1, REG_ITMP3);
1819                         }
1820                         M_BLT(0);
1821                         codegen_addreference(cd, iptr->dst.block);
1822                         break;
1823
1824
1825                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1826                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1827 /*                      if (iptr->sx.val.l == 0) { */
1828 /*                              M_OR(s1, s2, REG_ITMP3); */
1829 /*                              M_CMPI(REG_ITMP3, 0); */
1830
1831 /*                      } else  */
1832                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
1833                                 M_CMPI(s2, 0);
1834                                 M_BLT(0);
1835                                 codegen_addreference(cd, iptr->dst.block);
1836                                 M_BGT(2);
1837                                 M_CMPUI(s1, iptr->sx.val.l & 0xffff);
1838                         } else {
1839                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1840                                 M_CMP(s2, REG_ITMP3);
1841                                 M_BLT(0);
1842                                 codegen_addreference(cd, iptr->dst.block);
1843                                 M_BGT(3);
1844                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1845                                 M_CMPU(s1, REG_ITMP3);
1846                         }
1847                         M_BLE(0);
1848                         codegen_addreference(cd, iptr->dst.block);
1849                         break;
1850
1851                 case ICMD_IF_LNE:       /* ..., value ==> ...                         */
1852
1853                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1854                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1855                         if (iptr->sx.val.l == 0) {
1856                                 M_OR_TST(s1, s2, REG_ITMP3);
1857                         } else if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
1858                                 M_XOR_IMM(s2, 0, REG_ITMP2);
1859                                 M_XOR_IMM(s1, iptr->sx.val.l & 0xffff, REG_ITMP1);
1860                                 M_OR_TST(REG_ITMP1, REG_ITMP2, REG_ITMP3);
1861                         } else {
1862                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1863                                 M_XOR(s1, REG_ITMP3, REG_ITMP1);
1864                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1865                                 M_XOR(s2, REG_ITMP3, REG_ITMP2);
1866                                 M_OR_TST(REG_ITMP1, REG_ITMP2, REG_ITMP3);
1867                         }
1868                         M_BNE(0);
1869                         codegen_addreference(cd, iptr->dst.block);
1870                         break;
1871
1872
1873                 #endif
1874                 case ICMD_IF_LLT:       /* ..., value ==> ...                         */
1875                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1876                         LCONST(REG_ITMP2, iptr->sx.val.l);
1877                         M_CMP(s1, REG_ITMP2);
1878                         M_BLT(0);
1879                         codegen_addreference(cd, iptr->dst.block);
1880                         break;
1881                 case ICMD_IF_LLE:       /* ..., value ==> ...                         */
1882                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1883                         LCONST(REG_ITMP2, iptr->sx.val.l);
1884                         M_CMP(s1, REG_ITMP2);
1885                         M_BLE(0);
1886                         codegen_addreference(cd, iptr->dst.block);
1887                         break;
1888
1889                 case ICMD_IF_LNE:       /* ..., value ==> ... */
1890                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1891                         LCONST(REG_ITMP2, iptr->sx.val.l);
1892                         M_CMP(s1, REG_ITMP2);
1893                         M_BNE(0);
1894                         codegen_addreference(cd, iptr->dst.block);
1895                         break;
1896                 case ICMD_IF_LGE:       /* ..., value ==> ... */
1897                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1898                         LCONST(REG_ITMP2, iptr->sx.val.l);
1899                         M_CMP(s1, REG_ITMP2);
1900                         M_BGE(0);
1901                         codegen_addreference(cd, iptr->dst.block);
1902                         break;
1903                 case ICMD_IF_LGT:       /* ..., value ==> ...                         */
1904                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1905                         LCONST(REG_ITMP2, iptr->sx.val.l);
1906                         M_CMP(s1, REG_ITMP2);
1907                         M_BGT(0);
1908                         codegen_addreference(cd, iptr->dst.block);
1909                         break;
1910                 case ICMD_IF_ICMPEQ:    /* ..., value, value ==> ...                  */
1911                 case ICMD_IF_ACMPEQ:    /* op1 = target JavaVM pc                     */
1912                 case ICMD_IF_LCMPEQ:
1913
1914                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1915                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1916                         M_CMP(s1, s2);
1917                         M_BEQ(0);
1918                         codegen_addreference(cd, iptr->dst.block);
1919                         break;
1920
1921                 case ICMD_IF_ICMPNE:    /* ..., value, value ==> ...                  */
1922                 case ICMD_IF_ACMPNE:    /* op1 = target JavaVM pc                     */
1923                 case ICMD_IF_LCMPNE:
1924
1925                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1926                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1927                         M_CMP(s1, s2);
1928                         M_BNE(0);
1929                         codegen_addreference(cd, iptr->dst.block);
1930                         break;
1931
1932
1933                 case ICMD_IF_ICMPLT:    /* ..., value, value ==> ...                  */
1934                 case ICMD_IF_LCMPLT:
1935
1936                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1937                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1938                         M_CMP(s1, s2);
1939                         M_BLT(0);
1940                         codegen_addreference(cd, iptr->dst.block);
1941                         break;
1942
1943                 case ICMD_IF_ICMPGT:    /* ..., value, value ==> ...                  */
1944                 case ICMD_IF_LCMPGT:
1945
1946                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1947                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1948                         M_CMP(s1, s2);
1949                         M_BGT(0);
1950                         codegen_addreference(cd, iptr->dst.block);
1951                         break;
1952
1953                 case ICMD_IF_ICMPLE:    /* ..., value, value ==> ...                  */
1954                 case ICMD_IF_LCMPLE:
1955
1956                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1957                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1958                         M_CMP(s1, s2);
1959                         M_BLE(0);
1960                         codegen_addreference(cd, iptr->dst.block);
1961                         break;
1962
1963                 case ICMD_IF_ICMPGE:    /* ..., value, value ==> ...                  */
1964                 case ICMD_IF_LCMPGE:
1965
1966                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1967                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1968                         M_CMP(s1, s2);
1969                         M_BGE(0);
1970                         codegen_addreference(cd, iptr->dst.block);
1971                         break;
1972
1973
1974                 case ICMD_LRETURN:      /* ..., retvalue ==> ...                      */
1975                 case ICMD_IRETURN:      /* ..., retvalue ==> ...                      */
1976
1977                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
1978                         M_LNGMOVE(s1, REG_RESULT);
1979                         goto nowperformreturn;
1980
1981                 case ICMD_ARETURN:      /* ..., retvalue ==> ...                      */
1982
1983                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
1984                         M_LNGMOVE(s1, REG_RESULT);
1985
1986 #ifdef ENABLE_VERIFIER
1987                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1988                                 codegen_addpatchref(cd, PATCHER_athrow_areturn,
1989                                                                         iptr->sx.s23.s2.uc, 0);
1990
1991                                 if (opt_showdisassemble)
1992                                         M_NOP;
1993                         }
1994 #endif /* ENABLE_VERIFIER */
1995
1996                         goto nowperformreturn;
1997
1998                 case ICMD_FRETURN:      /* ..., retvalue ==> ...                      */
1999                 case ICMD_DRETURN:
2000
2001                         s1 = emit_load_s1(jd, iptr, REG_FRESULT);
2002                         M_FLTMOVE(s1, REG_FRESULT);
2003                         goto nowperformreturn;
2004
2005                 case ICMD_RETURN:      /* ...  ==> ...                                */
2006
2007 nowperformreturn:
2008                         {
2009                         s4 i, p;
2010
2011                         p = cd->stackframesize;
2012
2013                         /* call trace function */
2014
2015 #if !defined(NDEBUG)
2016                         if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
2017                                 emit_verbosecall_exit(jd);
2018                         }
2019 #endif
2020
2021 #if defined(ENABLE_THREADS)
2022                         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
2023                                 disp = dseg_addaddress(cd, LOCK_monitor_exit);
2024                                 M_ALD(REG_ITMP3, REG_PV, disp);
2025                                 M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
2026                                 M_MTCTR(REG_ITMP3);
2027
2028                                 /* we need to save the proper return value */
2029
2030                                 switch (iptr->opc) {
2031                                 case ICMD_LRETURN:
2032                                 case ICMD_IRETURN:
2033                                 case ICMD_ARETURN:
2034                                         /* fall through */
2035                                         M_LST(REG_RESULT , REG_SP, rd->memuse * 8 + 8);
2036                                         break;
2037                                 case ICMD_FRETURN:
2038                                         M_FST(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
2039                                         break;
2040                                 case ICMD_DRETURN:
2041                                         M_DST(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
2042                                         break;
2043                                 }
2044
2045                                 M_ALD(rd->argintregs[0], REG_SP, rd->memuse * 8);
2046                                 M_JSR;
2047
2048                                 /* and now restore the proper return value */
2049
2050                                 switch (iptr->opc) {
2051                                 case ICMD_LRETURN:
2052                                 case ICMD_IRETURN:
2053                                 case ICMD_ARETURN:
2054                                         /* fall through */
2055                                         M_LLD(REG_RESULT , REG_SP, rd->memuse * 8 + 8);
2056                                         break;
2057                                 case ICMD_FRETURN:
2058                                         M_FLD(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
2059                                         break;
2060                                 case ICMD_DRETURN:
2061                                         M_DLD(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
2062                                         break;
2063                                 }
2064                         }
2065 #endif
2066
2067                         /* restore return address                                         */
2068
2069                         if (!jd->isleafmethod) {
2070                                 /* ATTENTION: Don't use REG_ZERO (r0) here, as M_ALD
2071                                    may have a displacement overflow. */
2072
2073                                 M_ALD(REG_ITMP1, REG_SP, p * 8 + LA_LR_OFFSET);
2074                                 M_MTLR(REG_ITMP1);
2075                         }
2076
2077                         /* restore saved registers                                        */
2078
2079                         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
2080                                 p--; M_LLD(rd->savintregs[i], REG_SP, p * 8);
2081                         }
2082                         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
2083                                 p--; M_DLD(rd->savfltregs[i], REG_SP, p * 8);
2084                         }
2085
2086                         /* deallocate stack                                               */
2087
2088                         if (cd->stackframesize)
2089                                 M_LDA(REG_SP, REG_SP, cd->stackframesize * 8);
2090
2091                         M_RET;
2092                         ALIGNCODENOP;
2093                         }
2094                         break;
2095
2096
2097                 case ICMD_TABLESWITCH:  /* ..., index ==> ...                         */
2098                         {
2099                         s4 i, l;
2100                         branch_target_t *table;
2101
2102                         table = iptr->dst.table;
2103
2104                         l = iptr->sx.s23.s2.tablelow;
2105                         i = iptr->sx.s23.s3.tablehigh;
2106
2107                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2108                         if (l == 0) {
2109                                 M_INTMOVE(s1, REG_ITMP1);
2110                         } else if (l <= 32768) {
2111                                 M_LDA(REG_ITMP1, s1, -l);
2112                         } else {
2113                                 ICONST(REG_ITMP2, l);
2114                                 M_SUB(s1, REG_ITMP2, REG_ITMP1);
2115                         }
2116
2117                         /* number of targets */
2118                         i = i - l + 1;
2119
2120                         /* range check */
2121
2122                         M_CMPUI(REG_ITMP1, i - 1);
2123                         M_BGT(0);
2124                         codegen_addreference(cd, table[0].block);
2125
2126                         /* build jump table top down and use address of lowest entry */
2127
2128                         table += i;
2129
2130                         while (--i >= 0) {
2131                                 dseg_addtarget(cd, table->block);
2132                                 --table;
2133                                 }
2134                         }
2135
2136                         /* length of dataseg after last dseg_addtarget is used by load */
2137
2138                         M_SLL_IMM(REG_ITMP1, 3, REG_ITMP1);
2139                         M_IADD(REG_ITMP1, REG_PV, REG_ITMP2);
2140                         M_ALD(REG_ITMP2, REG_ITMP2, -(cd->dseglen));
2141                         M_MTCTR(REG_ITMP2);
2142                         M_RTS;
2143                         ALIGNCODENOP;
2144                         break;
2145
2146
2147                 case ICMD_LOOKUPSWITCH: /* ..., key ==> ...                           */
2148                         {
2149                         s4 i, val;
2150                         lookup_target_t *lookup;
2151
2152                         lookup = iptr->dst.lookup;
2153
2154                         i = iptr->sx.s23.s2.lookupcount;
2155
2156                         MCODECHECK((i<<2)+8);
2157                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2158                         while (--i >= 0) {
2159                                 val = lookup->value;
2160                                 if ((val >= -32768) && (val <= 32767)) {
2161                                         M_CMPI(s1, val);
2162                                 } else {
2163                                         a = dseg_adds4(cd, val);
2164                                         M_ILD(REG_ITMP2, REG_PV, a);
2165                                         M_CMP(s1, REG_ITMP2);
2166                                 }
2167                                 M_BEQ(0);
2168                                 codegen_addreference(cd, lookup->target.block);
2169                                 ++lookup;
2170                         }
2171
2172                         M_BR(0);
2173                         codegen_addreference(cd, iptr->sx.s23.s3.lookupdefault.block);
2174
2175                         ALIGNCODENOP;
2176                         break;
2177                         }
2178
2179
2180                 case ICMD_BUILTIN:      /* ..., [arg1, [arg2 ...]] ==> ...            */
2181
2182                         bte = iptr->sx.s23.s3.bte;
2183                         md = bte->md;
2184                         goto gen_method;
2185
2186                 case ICMD_INVOKESTATIC: /* ..., [arg1, [arg2 ...]] ==> ...            */
2187
2188                 case ICMD_INVOKESPECIAL:/* ..., objectref, [arg1, [arg2 ...]] ==> ... */
2189                 case ICMD_INVOKEVIRTUAL:/* op1 = arg count, val.a = method pointer    */
2190                 case ICMD_INVOKEINTERFACE:
2191
2192                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2193                                 md = iptr->sx.s23.s3.um->methodref->parseddesc.md;
2194                                 lm = NULL;
2195                         }
2196                         else {
2197                                 lm = iptr->sx.s23.s3.fmiref->p.method;
2198                                 md = lm->parseddesc;
2199                         }
2200
2201 gen_method:
2202                         s3 = md->paramcount;
2203
2204                         MCODECHECK((s3 << 1) + 64);
2205
2206                         /* copy arguments to registers or stack location */
2207
2208                         for (s3 = s3 - 1; s3 >= 0; s3--) {
2209                                 var = VAR(iptr->sx.s23.s2.args[s3]);
2210
2211                                 if (var->flags & PREALLOC)
2212                                         continue;
2213
2214                                 if (IS_INT_LNG_TYPE(var->type)) {
2215                                         if (!md->params[s3].inmemory) {
2216                                                 s1 = rd->argintregs[md->params[s3].regoff];
2217                                                 d = emit_load(jd, iptr, var, s1);
2218                                                 M_LNGMOVE(d, s1);
2219                                         } else {
2220                                                 d = emit_load(jd, iptr, var, REG_ITMP1);
2221                                                 M_LST(d, REG_SP, md->params[s3].regoff * 8);
2222                                         }
2223                                 } else {
2224                                         if (!md->params[s3].inmemory) {
2225                                                 s1 = rd->argfltregs[md->params[s3].regoff];
2226                                                 d = emit_load(jd, iptr, var, s1);
2227                                                 M_FLTMOVE(d, s1);
2228                                         } else {
2229                                                 d = emit_load(jd, iptr, var, REG_FTMP1);
2230                                                 if (IS_2_WORD_TYPE(var->type))
2231                                                         M_DST(d, REG_SP, md->params[s3].regoff * 8);
2232                                                 else
2233                                                         M_FST(d, REG_SP, md->params[s3].regoff * 8);
2234                                         }
2235                                 }
2236                         } /* end of for */
2237
2238                         switch (iptr->opc) {
2239                         case ICMD_BUILTIN:
2240                                 disp = dseg_addaddress(cd, bte->fp);
2241                                 d = md->returntype.type;
2242
2243                                 M_ALD(REG_PV, REG_PV, disp);    /* pointer to built-in-function descriptor */
2244                                 M_ALD(REG_ITMP1, REG_PV, 0);    /* function entry point address, what about TOC */
2245                                 M_MTCTR(REG_ITMP1);
2246                                 M_JSR;
2247
2248                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2249                                 M_MFLR(REG_ITMP1);
2250                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2251
2252
2253                                 if (INSTRUCTION_MUST_CHECK(iptr)) {
2254                                         M_CMPI(REG_RESULT, 0);
2255                                         M_BEQ(0);
2256                                         codegen_add_fillinstacktrace_ref(cd);
2257                                 }
2258                                 break;
2259
2260                         case ICMD_INVOKESPECIAL:
2261                                 gen_nullptr_check(rd->argintregs[0]);
2262                                 M_ILD(REG_ITMP1, rd->argintregs[0], 0); /* hardware nullptr   */
2263                                 /* fall through */
2264
2265                         case ICMD_INVOKESTATIC:
2266                                 if (lm == NULL) {
2267                                         unresolved_method *um = iptr->sx.s23.s3.um;
2268
2269                                         disp = dseg_addaddress(cd, NULL);
2270
2271                                         codegen_addpatchref(cd, PATCHER_invokestatic_special,
2272                                                                                 um, disp);
2273
2274                                         if (opt_showdisassemble)
2275                                                 M_NOP;
2276
2277                                         d = md->returntype.type;
2278
2279                                 } else {
2280                                         disp = dseg_addaddress(cd, lm->stubroutine);
2281                                         d = md->returntype.type;
2282                                 }
2283
2284                                 M_NOP;
2285                                 M_ALD(REG_PV, REG_PV, disp);
2286                                 M_MTCTR(REG_PV);
2287                                 M_JSR;
2288                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2289                                 M_MFLR(REG_ITMP1);
2290                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2291                                 break;
2292
2293                         case ICMD_INVOKEVIRTUAL:
2294                                 gen_nullptr_check(rd->argintregs[0]);
2295
2296                                 if (lm == NULL) {
2297                                         unresolved_method *um = iptr->sx.s23.s3.um;
2298
2299                                         codegen_addpatchref(cd, PATCHER_invokevirtual, um, 0);
2300
2301                                         if (opt_showdisassemble)
2302                                                 M_NOP;
2303
2304                                         s1 = 0;
2305                                         d = md->returntype.type;
2306
2307                                 } else {
2308                                         s1 = OFFSET(vftbl_t, table[0]) +
2309                                                 sizeof(methodptr) * lm->vftblindex;
2310                                         d = md->returntype.type;
2311                                 }
2312
2313                                 M_ALD(REG_METHODPTR, rd->argintregs[0],
2314                                           OFFSET(java_objectheader, vftbl));
2315                                 M_ALD(REG_PV, REG_METHODPTR, s1);
2316                                 M_MTCTR(REG_PV);
2317                                 M_JSR;
2318                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2319                                 M_MFLR(REG_ITMP1);
2320                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2321                                 break;
2322
2323                         case ICMD_INVOKEINTERFACE:
2324                                 gen_nullptr_check(rd->argintregs[0]);
2325
2326                                 if (lm == NULL) {
2327                                         unresolved_method *um = iptr->sx.s23.s3.um;
2328
2329                                         codegen_addpatchref(cd, PATCHER_invokeinterface, um, 0);
2330
2331                                         if (opt_showdisassemble)
2332                                                 M_NOP;
2333
2334                                         s1 = 0;
2335                                         s2 = 0;
2336                                         d = md->returntype.type;
2337
2338                                 } else {
2339                                         s1 = OFFSET(vftbl_t, interfacetable[0]) -
2340                                                 sizeof(methodptr*) * lm->class->index;
2341
2342                                         s2 = sizeof(methodptr) * (lm - lm->class->methods);
2343
2344                                         d = md->returntype.type;
2345                                 }
2346
2347                                 M_ALD(REG_METHODPTR, rd->argintregs[0],
2348                                           OFFSET(java_objectheader, vftbl));
2349                                 M_ALD(REG_METHODPTR, REG_METHODPTR, s1);
2350                                 M_ALD(REG_PV, REG_METHODPTR, s2);
2351                                 M_MTCTR(REG_PV);
2352                                 M_JSR;
2353                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2354                                 M_MFLR(REG_ITMP1);
2355                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2356                                 break;
2357                         }
2358
2359                         /* d contains return type */
2360
2361                         if (d != TYPE_VOID) {
2362                                 if (IS_INT_LNG_TYPE(d)) {
2363                                         s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2364                                         M_MOV(REG_RESULT, s1);
2365                                 } else {
2366                                         s1 = codegen_reg_of_dst(jd, iptr, REG_FRESULT);
2367                                         M_FLTMOVE(REG_FRESULT, s1);
2368                                 }
2369                                 emit_store_dst(jd, iptr, s1);
2370                         }
2371                         break;
2372
2373
2374                 case ICMD_CHECKCAST:  /* ..., objectref ==> ..., objectref            */
2375                                       /* val.a: (classinfo*) superclass               */
2376
2377                         /*  superclass is an interface:
2378                          *
2379                          *  OK if ((sub == NULL) ||
2380                          *         (sub->vftbl->interfacetablelength > super->index) &&
2381                          *         (sub->vftbl->interfacetable[-super->index] != NULL));
2382                          *
2383                          *  superclass is a class:
2384                          *
2385                          *  OK if ((sub == NULL) || (0
2386                          *         <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2387                          *         super->vftbl->diffvall));
2388                          */
2389
2390                         if (!(iptr->flags.bits & INS_FLAG_ARRAY)) {
2391                                 /* object type cast-check */
2392
2393                                 classinfo *super;
2394                                 vftbl_t   *supervftbl;
2395                                 s4         superindex;
2396
2397                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2398                                         super = NULL;
2399                                         superindex = 0;
2400                                         supervftbl = NULL;
2401                                 }
2402                                 else {
2403                                         super = iptr->sx.s23.s3.c.cls;
2404                                         superindex = super->index;
2405                                         supervftbl = super->vftbl;
2406                                 }
2407
2408 #if defined(ENABLE_THREADS)
2409                                 codegen_threadcritrestart(cd, cd->mcodeptr - cd->mcodebase);
2410 #endif
2411                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2412
2413                                 /* calculate interface checkcast code size */
2414
2415                                 s2 = 7;
2416                                 if (!super)
2417                                         s2 += (opt_showdisassemble ? 1 : 0);
2418
2419                                 /* calculate class checkcast code size */
2420
2421                                 s3 = 8 + (s1 == REG_ITMP1);
2422                                 if (!super)
2423                                         s3 += (opt_showdisassemble ? 1 : 0);
2424
2425                                 /* if class is not resolved, check which code to call */
2426
2427                                 if (!super) {
2428                                         M_TST(s1);
2429                                         M_BEQ(3 + (opt_showdisassemble ? 1 : 0) + s2 + 1 + s3);
2430
2431                                         disp = dseg_adds4(cd, 0);                     /* super->flags */
2432
2433                                         codegen_addpatchref(cd,
2434                                                                                 PATCHER_checkcast_instanceof_flags,
2435                                                                                 iptr->sx.s23.s3.c.ref,
2436                                                                                 disp);
2437
2438                                         if (opt_showdisassemble)
2439                                                 M_NOP;
2440
2441                                         M_ILD(REG_ITMP2, REG_PV, disp);
2442                                         M_AND_IMM(REG_ITMP2, ACC_INTERFACE, REG_ITMP2);
2443                                         M_BEQ(s2 + 1);
2444                                 }
2445
2446                                 /* interface checkcast code */
2447
2448                                 if (!super || (super->flags & ACC_INTERFACE)) {
2449                                         if (super) {
2450                                                 M_TST(s1);
2451                                                 M_BEQ(s2);
2452
2453                                         } else {
2454                                                 codegen_addpatchref(cd,
2455                                                                                         PATCHER_checkcast_instanceof_interface,
2456                                                                                         iptr->sx.s23.s3.c.ref,
2457                                                                                         0);
2458
2459                                                 if (opt_showdisassemble)
2460                                                         M_NOP;
2461                                         }
2462
2463                                         M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2464                                         M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, interfacetablelength));
2465                                         M_LDATST(REG_ITMP3, REG_ITMP3, -superindex);
2466                                         M_BLE(0);
2467                                         codegen_add_classcastexception_ref(cd, s1);     /*XXX s1?? */
2468                                         M_ALD(REG_ITMP3, REG_ITMP2,
2469                                                   OFFSET(vftbl_t, interfacetable[0]) -
2470                                                   superindex * sizeof(methodptr*));
2471                                         M_TST(REG_ITMP3);
2472                                         M_BEQ(0);
2473                                         codegen_add_classcastexception_ref(cd, s1);     /*XXX s1??*/
2474
2475                                         if (!super)
2476                                                 M_BR(s3);
2477                                 }
2478
2479                                 /* class checkcast code */
2480
2481                                 if (!super || !(super->flags & ACC_INTERFACE)) {
2482                                         disp = dseg_addaddress(cd, supervftbl);
2483
2484                                         if (super) {
2485                                                 M_TST(s1);
2486                                                 M_BEQ(s3);
2487
2488                                         } else {
2489                                                 codegen_addpatchref(cd, PATCHER_checkcast_class,
2490                                                                                         iptr->sx.s23.s3.c.ref,
2491                                                                                         disp);
2492
2493                                                 if (opt_showdisassemble)
2494                                                         M_NOP;
2495                                         }
2496
2497                                         M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2498 #if defined(ENABLE_THREADS)
2499                                         codegen_threadcritstart(cd, cd->mcodeptr - cd->mcodebase);
2500 #endif
2501                                         M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2502                                         M_ALD(REG_ITMP2, REG_PV, disp);
2503                                         if (s1 != REG_ITMP1) {
2504                                                 M_ILD(REG_ITMP1, REG_ITMP2, OFFSET(vftbl_t, baseval));
2505                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2506 #if defined(ENABLE_THREADS)
2507                                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2508 #endif
2509                                                 M_SUB(REG_ITMP3, REG_ITMP1, REG_ITMP3);
2510                                         } else {
2511                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, baseval));
2512                                                 M_SUB(REG_ITMP3, REG_ITMP2, REG_ITMP3);
2513                                                 M_ALD(REG_ITMP2, REG_PV, disp);
2514                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2515 #if defined(ENABLE_THREADS)
2516                                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2517 #endif
2518                                         }
2519                                         M_CMP(REG_ITMP3, REG_ITMP2);
2520                                         M_BGT(0);
2521                                         codegen_add_classcastexception_ref(cd, s1); /* XXX s1? */
2522                                 }
2523                                 d = codegen_reg_of_dst(jd, iptr, s1);
2524
2525                         } else {
2526                                 /* array type cast-check */
2527
2528                                 s1 = emit_load_s1(jd, iptr, rd->argintregs[0]);
2529                                 M_INTMOVE(s1, rd->argintregs[0]);
2530
2531                                 disp = dseg_addaddress(cd, iptr->sx.s23.s3.c.cls);
2532
2533                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2534                                         codegen_addpatchref(cd, PATCHER_builtin_arraycheckcast,
2535                                                                                 iptr->sx.s23.s3.c.ref,
2536                                                                                 disp);
2537
2538                                         if (opt_showdisassemble)
2539                                                 M_NOP;
2540                                 }
2541
2542                                 M_ALD(rd->argintregs[1], REG_PV, disp);
2543                                 disp = dseg_addaddress(cd, BUILTIN_arraycheckcast);
2544                                 M_ALD(REG_ITMP2, REG_PV, disp);
2545                                 M_ALD(REG_ITMP2, REG_ITMP2, 0); /* TOC */
2546                                 M_MTCTR(REG_ITMP2);
2547                                 M_JSR;
2548                                 M_TST(REG_RESULT);
2549                                 M_BEQ(0);
2550                                 codegen_add_classcastexception_ref(cd, s1); /* XXX s1? */
2551
2552                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2553                                 d = codegen_reg_of_dst(jd, iptr, s1);
2554                         }
2555                         M_INTMOVE(s1, d);
2556                         emit_store_dst(jd, iptr, d);
2557                         break;
2558
2559                 case ICMD_INSTANCEOF: /* ..., objectref ==> ..., intresult            */
2560                                       /* val.a: (classinfo*) superclass               */
2561
2562                         /*  superclass is an interface:
2563                          *
2564                          *  return (sub != NULL) &&
2565                          *         (sub->vftbl->interfacetablelength > super->index) &&
2566                          *         (sub->vftbl->interfacetable[-super->index] != NULL);
2567                          *
2568                          *  superclass is a class:
2569                          *
2570                          *  return ((sub != NULL) && (0
2571                          *          <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2572                          *          super->vftbl->diffvall));
2573                          */
2574
2575                         {
2576                         classinfo *super;
2577                         vftbl_t   *supervftbl;
2578                         s4         superindex;
2579
2580                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2581                                 super = NULL;
2582                                 superindex = 0;
2583                                 supervftbl = NULL;
2584                         }
2585                         else {
2586                                 super = iptr->sx.s23.s3.c.cls;
2587                                 superindex = super->index;
2588                                 supervftbl = super->vftbl;
2589                         }
2590
2591 #if defined(ENABLE_THREADS)
2592             codegen_threadcritrestart(cd, cd->mcodeptr - cd->mcodebase);
2593 #endif
2594                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2595                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
2596                         if (s1 == d) {
2597                                 M_MOV(s1, REG_ITMP1);
2598                                 s1 = REG_ITMP1;
2599                         }
2600
2601                         /* calculate interface instanceof code size */
2602
2603                         s2 = 8;
2604                         if (!super)
2605                                 s2 += (opt_showdisassemble ? 1 : 0);
2606
2607                         /* calculate class instanceof code size */
2608
2609                         s3 = 10;
2610                         if (!super)
2611                                 s3 += (opt_showdisassemble ? 1 : 0);
2612
2613                         M_CLR(d);
2614
2615                         /* if class is not resolved, check which code to call */
2616
2617                         if (!super) {
2618                                 M_TST(s1);
2619                                 M_BEQ(3 + (opt_showdisassemble ? 1 : 0) + s2 + 1 + s3);
2620
2621                                 disp = dseg_adds4(cd, 0);                     /* super->flags */
2622
2623                                 codegen_addpatchref(cd, PATCHER_checkcast_instanceof_flags,
2624                                                                         iptr->sx.s23.s3.c.ref, disp);
2625
2626                                 if (opt_showdisassemble)
2627                                         M_NOP;
2628
2629                                 M_ILD(REG_ITMP3, REG_PV, disp);
2630                                 M_AND_IMM(REG_ITMP3, ACC_INTERFACE, REG_ITMP3);
2631                                 M_BEQ(s2 + 1);
2632                         }
2633
2634                         /* interface instanceof code */
2635
2636                         if (!super || (super->flags & ACC_INTERFACE)) {
2637                                 if (super) {
2638                                         M_TST(s1);
2639                                         M_BEQ(s2);
2640
2641                                 } else {
2642                                         codegen_addpatchref(cd,
2643                                                                                 PATCHER_checkcast_instanceof_interface,
2644                                                                                 iptr->sx.s23.s3.c.ref, 0);
2645
2646                                         if (opt_showdisassemble)
2647                                                 M_NOP;
2648                                 }
2649
2650                                 M_ALD(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
2651                                 M_ILD(REG_ITMP3, REG_ITMP1, OFFSET(vftbl_t, interfacetablelength));
2652                                 M_LDATST(REG_ITMP3, REG_ITMP3, -superindex);
2653                                 M_BLE(4);
2654                                 M_ALD(REG_ITMP1, REG_ITMP1,
2655                                           OFFSET(vftbl_t, interfacetable[0]) -
2656                                           superindex * sizeof(methodptr*));
2657                                 M_TST(REG_ITMP1);
2658                                 M_BEQ(1);
2659                                 M_IADD_IMM(REG_ZERO, 1, d);
2660
2661                                 if (!super)
2662                                         M_BR(s3);
2663                         }
2664
2665                         /* class instanceof code */
2666
2667                         if (!super || !(super->flags & ACC_INTERFACE)) {
2668                                 disp = dseg_addaddress(cd, supervftbl);
2669
2670                                 if (super) {
2671                                         M_TST(s1);
2672                                         M_BEQ(s3);
2673
2674                                 } else {
2675                                         codegen_addpatchref(cd, PATCHER_instanceof_class,
2676                                                                                 iptr->sx.s23.s3.c.ref,
2677                                                                                 disp);
2678
2679                                         if (opt_showdisassemble) {
2680                                                 M_NOP;
2681                                         }
2682                                 }
2683
2684                                 M_ALD(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
2685                                 M_ALD(REG_ITMP2, REG_PV, disp);
2686 #if defined(ENABLE_THREADS)
2687                                 codegen_threadcritstart(cd, cd->mcodeptr - cd->mcodebase);
2688 #endif
2689                                 M_ILD(REG_ITMP1, REG_ITMP1, OFFSET(vftbl_t, baseval));
2690                                 M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2691                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2692 #if defined(ENABLE_THREADS)
2693                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2694 #endif
2695                                 M_SUB(REG_ITMP1, REG_ITMP3, REG_ITMP1);
2696                                 M_CMPU(REG_ITMP1, REG_ITMP2);
2697                                 M_CLR(d);
2698                                 M_BGT(1);
2699                                 M_IADD_IMM(REG_ZERO, 1, d);
2700                         }
2701                         emit_store_dst(jd, iptr, d);
2702                         }
2703                         break;
2704
2705                 case ICMD_MULTIANEWARRAY:/* ..., cnt1, [cnt2, ...] ==> ..., arrayref  */
2706
2707                         /* check for negative sizes and copy sizes to stack if necessary  */
2708
2709                         MCODECHECK((iptr->s1.argcount << 1) + 64);
2710
2711                         for (s1 = iptr->s1.argcount; --s1 >= 0; ) {
2712
2713                                 var = VAR(iptr->sx.s23.s2.args[s1]);
2714
2715                                 /* copy SAVEDVAR sizes to stack */
2716
2717                                 if (!(var->flags & PREALLOC)) {
2718                                         s2 = emit_load(jd, iptr, var, REG_ITMP1);
2719 #if defined(__DARWIN__)
2720                                         M_IST(s2, REG_SP, LA_SIZE + (s1 + INT_ARG_CNT) * 4);
2721 #else
2722                                         M_IST(s2, REG_SP, LA_SIZE + (s1 + 3) * 4);
2723 #endif
2724                                 }
2725                         }
2726
2727                         /* a0 = dimension count */
2728
2729                         ICONST(rd->argintregs[0], iptr->s1.argcount);
2730
2731                         /* is patcher function set? */
2732
2733                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2734                                 disp = dseg_addaddress(cd, NULL);
2735
2736                                 codegen_addpatchref(cd, PATCHER_builtin_multianewarray,
2737                                                                         iptr->sx.s23.s3.c.ref, disp);
2738
2739                                 if (opt_showdisassemble)
2740                                         M_NOP;
2741
2742                         } else {
2743                                 disp = dseg_addaddress(cd, iptr->sx.s23.s3.c.cls);
2744                         }
2745
2746                         /* a1 = arraydescriptor */
2747
2748                         M_ALD(rd->argintregs[1], REG_PV, disp);
2749
2750                         /* a2 = pointer to dimensions = stack pointer */
2751
2752 #if defined(__DARWIN__)
2753                         M_LDA(rd->argintregs[2], REG_SP, LA_SIZE + INT_ARG_CNT * 4);
2754 #else
2755                         M_LDA(rd->argintregs[2], REG_SP, LA_SIZE + 3 * 4);
2756 #endif
2757
2758                         disp = dseg_addaddress(cd, BUILTIN_multianewarray);
2759                         M_ALD(REG_ITMP3, REG_PV, disp);
2760                         M_MTCTR(REG_ITMP3);
2761                         M_JSR;
2762
2763                         /* check for exception before result assignment */
2764
2765                         M_CMPI(REG_RESULT, 0);
2766                         M_BEQ(0);
2767                         codegen_add_fillinstacktrace_ref(cd);
2768
2769                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2770                         M_INTMOVE(REG_RESULT, d);
2771                         emit_store_dst(jd, iptr, d);
2772                         break;
2773
2774                 default:
2775                         *exceptionptr =
2776                                 new_internalerror("Unknown ICMD %d during code generation",
2777                                                                   iptr->opc);
2778                         return false;
2779         } /* switch */
2780
2781         } /* for instruction */
2782
2783         } /* if (bptr -> flags >= BBREACHED) */
2784         } /* for basic block */
2785
2786         dseg_createlinenumbertable(cd);
2787
2788
2789         /* generate exception and patcher stubs */
2790
2791         {
2792                 exceptionref *eref;
2793                 patchref     *pref;
2794                 u4            mcode;
2795                 u1           *savedmcodeptr;
2796                 u1           *tmpmcodeptr;
2797
2798                 savedmcodeptr = NULL;
2799
2800                 /* generate exception stubs */
2801
2802                 for (eref = cd->exceptionrefs; eref != NULL; eref = eref->next) {
2803                         gen_resolvebranch(cd->mcodebase + eref->branchpos,
2804                                                           eref->branchpos, cd->mcodeptr - cd->mcodebase);
2805
2806                         MCODECHECK(100);
2807
2808                         /* Check if the exception is an
2809                            ArrayIndexOutOfBoundsException.  If so, move index register
2810                            into REG_ITMP1. */
2811
2812                         if (eref->reg != -1)
2813                                 M_MOV(eref->reg, REG_ITMP1);
2814
2815                         /* calcuate exception address */
2816
2817                         M_LDA(REG_ITMP2_XPC, REG_PV, eref->branchpos - 4);
2818
2819                         /* move function to call into REG_ITMP3 */
2820
2821                         disp = dseg_addaddress(cd, eref->function);
2822                         M_ALD(REG_ITMP3, REG_PV, disp);
2823                         M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
2824
2825                         if (savedmcodeptr != NULL) {
2826                                 disp = ((u4 *) savedmcodeptr) - (((u4 *) cd->mcodeptr) + 1);
2827                                 M_BR(disp);
2828
2829                         } else {
2830                                 savedmcodeptr = cd->mcodeptr;
2831
2832                                 if (jd->isleafmethod) {
2833                                         M_MFLR(REG_ZERO);
2834                                         M_AST(REG_ZERO, REG_SP, cd->stackframesize * 8 + LA_LR_OFFSET);
2835                                 }
2836
2837                                 M_MOV(REG_PV, rd->argintregs[0]);
2838                                 M_MOV(REG_SP, rd->argintregs[1]);
2839
2840                                 if (jd->isleafmethod)
2841                                         M_MOV(REG_ZERO, rd->argintregs[2]);
2842                                 else
2843                                         M_ALD(rd->argintregs[2],
2844                                                   REG_SP, cd->stackframesize * 8 + LA_LR_OFFSET);
2845
2846                                 M_MOV(REG_ITMP2_XPC, rd->argintregs[3]);
2847                                 M_MOV(REG_ITMP1, rd->argintregs[4]);
2848
2849                                 M_STDU(REG_SP, REG_SP, -(LA_SIZE + 6 * 8));
2850                                 M_AST(REG_ITMP2_XPC, REG_SP, LA_SIZE + 5 * 8);
2851
2852                                 M_MTCTR(REG_ITMP3);
2853                                 M_JSR;
2854                                 M_MOV(REG_RESULT, REG_ITMP1_XPTR);
2855
2856                                 M_ALD(REG_ITMP2_XPC, REG_SP, LA_SIZE + 5 * 8);
2857                                 M_LADD_IMM(REG_SP, LA_SIZE + 6 * 8, REG_SP);
2858
2859                                 if (jd->isleafmethod) {
2860                                         /* XXX FIXME: REG_ZERO can cause problems here! */
2861                                         assert(cd->stackframesize * 8 <= 32767);
2862
2863                                         M_ALD(REG_ZERO, REG_SP, cd->stackframesize * 8 + LA_LR_OFFSET);
2864                                         M_MTLR(REG_ZERO);
2865                                 }
2866
2867                                 disp = dseg_addaddress(cd, asm_handle_exception);
2868                                 M_ALD(REG_ITMP3, REG_PV, disp);
2869                                 M_MTCTR(REG_ITMP3);
2870                                 M_RTS;
2871                         }
2872                 }
2873
2874
2875                 /* generate code patching stub call code */
2876
2877                 for (pref = cd->patchrefs; pref != NULL; pref = pref->next) {
2878                         /* check code segment size */
2879
2880                         MCODECHECK(16);
2881
2882                         /* Get machine code which is patched back in later. The
2883                            call is 1 instruction word long. */
2884
2885                         tmpmcodeptr = (u1 *) (cd->mcodebase + pref->branchpos);
2886
2887                         mcode = *((u4 *) tmpmcodeptr);
2888
2889                         /* Patch in the call to call the following code (done at
2890                            compile time). */
2891
2892                         savedmcodeptr = cd->mcodeptr;   /* save current mcodeptr          */
2893                         cd->mcodeptr  = tmpmcodeptr;    /* set mcodeptr to patch position */
2894
2895                         disp = ((u4 *) savedmcodeptr) - (((u4 *) tmpmcodeptr) + 1);
2896                         M_BR(disp);
2897
2898                         cd->mcodeptr = savedmcodeptr;   /* restore the current mcodeptr   */
2899
2900                         /* create stack frame - keep stack 16-byte aligned */
2901
2902                         M_AADD_IMM(REG_SP, -8 * 8, REG_SP);
2903
2904                         /* calculate return address and move it onto the stack */
2905
2906                         M_LDA(REG_ITMP3, REG_PV, pref->branchpos);
2907                         M_AST_INTERN(REG_ITMP3, REG_SP, 5 * 8);
2908
2909                         /* move pointer to java_objectheader onto stack */
2910
2911 #if defined(ENABLE_THREADS)
2912                         /* order reversed because of data segment layout */
2913
2914                         (void) dseg_addaddress(cd, NULL);                         /* flcword    */
2915                         (void) dseg_addaddress(cd, lock_get_initial_lock_word()); /* monitorPtr */
2916                         disp = dseg_addaddress(cd, NULL);                         /* vftbl      */
2917
2918                         M_LDA(REG_ITMP3, REG_PV, disp);
2919                         M_AST_INTERN(REG_ITMP3, REG_SP, 4 * 8);
2920 #else
2921                         /* do nothing */
2922 #endif
2923
2924                         /* move machine code onto stack */
2925
2926                         disp = dseg_adds4(cd, mcode);
2927                         M_ILD(REG_ITMP3, REG_PV, disp);
2928                         M_IST_INTERN(REG_ITMP3, REG_SP, 3 * 8);
2929
2930                         /* move class/method/field reference onto stack */
2931
2932                         disp = dseg_addaddress(cd, pref->ref);
2933                         M_ALD(REG_ITMP3, REG_PV, disp);
2934                         M_AST_INTERN(REG_ITMP3, REG_SP, 2 * 8);
2935
2936                         /* move data segment displacement onto stack */
2937
2938                         disp = dseg_addaddress(cd, pref->disp);
2939                         M_LLD(REG_ITMP3, REG_PV, disp);
2940                         M_IST_INTERN(REG_ITMP3, REG_SP, 1 * 8);
2941
2942                         /* move patcher function pointer onto stack */
2943
2944                         disp = dseg_addaddress(cd, pref->patcher);
2945                         M_ALD(REG_ITMP3, REG_PV, disp);
2946                         M_AST_INTERN(REG_ITMP3, REG_SP, 0 * 8);
2947
2948                         disp = dseg_addaddress(cd, asm_patcher_wrapper);
2949                         M_ALD(REG_ITMP3, REG_PV, disp);
2950                         M_MTCTR(REG_ITMP3);
2951                         M_RTS;
2952                 }
2953
2954                 /* generate replacement-out stubs */
2955
2956 #if 0
2957                 {
2958                         int i;
2959
2960                         replacementpoint = jd->code->rplpoints;
2961
2962                         for (i = 0; i < jd->code->rplpointcount; ++i, ++replacementpoint) {
2963                                 /* check code segment size */
2964
2965                                 MCODECHECK(100);
2966
2967                                 /* note start of stub code */
2968
2969                                 replacementpoint->outcode = (u1 *) (cd->mcodeptr - cd->mcodebase);
2970
2971                                 /* make machine code for patching */
2972
2973                                 tmpmcodeptr  = cd->mcodeptr;
2974                                 cd->mcodeptr = (u1 *) &(replacementpoint->mcode) + 1 /* big-endian */;
2975
2976                                 disp = (ptrint)((s4*)replacementpoint->outcode - (s4*)replacementpoint->pc) - 1;
2977                                 M_BR(disp);
2978
2979                                 cd->mcodeptr = tmpmcodeptr;
2980
2981                                 /* create stack frame - keep 16-byte aligned */
2982
2983                                 M_AADD_IMM(REG_SP, -4 * 4, REG_SP);
2984
2985                                 /* push address of `rplpoint` struct */
2986
2987                                 disp = dseg_addaddress(cd, replacementpoint);
2988                                 M_ALD(REG_ITMP3, REG_PV, disp);
2989                                 M_AST_INTERN(REG_ITMP3, REG_SP, 0 * 4);
2990
2991                                 /* jump to replacement function */
2992
2993                                 disp = dseg_addaddress(cd, asm_replacement_out);
2994                                 M_ALD(REG_ITMP3, REG_PV, disp);
2995                                 M_MTCTR(REG_ITMP3);
2996                                 M_RTS;
2997                         }
2998                 }
2999 #endif
3000         }
3001
3002         codegen_finish(jd);
3003
3004         /* everything's ok */
3005
3006         return true;
3007 }
3008
3009
3010 /* createcompilerstub **********************************************************
3011
3012    Creates a stub routine which calls the compiler.
3013
3014 *******************************************************************************/
3015
3016 #define COMPILERSTUB_DATASIZE    3 * SIZEOF_VOID_P
3017 #define COMPILERSTUB_CODESIZE    4 * 4
3018
3019 #define COMPILERSTUB_SIZE        COMPILERSTUB_DATASIZE + COMPILERSTUB_CODESIZE
3020
3021
3022 u1 *createcompilerstub(methodinfo *m)
3023 {
3024         u1          *s;                     /* memory to hold the stub            */
3025         ptrint      *d;
3026         codeinfo    *code;
3027         codegendata *cd;
3028         s4           dumpsize;
3029
3030         s = CNEW(u1, COMPILERSTUB_SIZE);
3031
3032         /* set data pointer and code pointer */
3033
3034         d = (ptrint *) s;
3035         s = s + COMPILERSTUB_DATASIZE;
3036
3037         /* mark start of dump memory area */
3038
3039         dumpsize = dump_size();
3040
3041         cd = DNEW(codegendata);
3042         cd->mcodeptr = s;
3043
3044         /* Store the codeinfo pointer in the same place as in the
3045            methodheader for compiled methods. */
3046
3047         code = code_codeinfo_new(m);
3048
3049         d[0] = (ptrint) asm_call_jit_compiler;
3050         d[1] = (ptrint) m;
3051         d[2] = (ptrint) code;
3052
3053         M_ALD_INTERN(REG_ITMP1, REG_PV, -2 * SIZEOF_VOID_P);
3054         M_ALD_INTERN(REG_PV, REG_PV, -3 * SIZEOF_VOID_P);
3055         M_MTCTR(REG_PV);
3056         M_RTS;
3057
3058         md_cacheflush((u1 *) d, COMPILERSTUB_SIZE);
3059
3060 #if defined(ENABLE_STATISTICS)
3061         if (opt_stat)
3062                 count_cstub_len += COMPILERSTUB_SIZE;
3063 #endif
3064
3065         /* release dump area */
3066
3067         dump_release(dumpsize);
3068
3069         return s;
3070 }
3071
3072
3073 /* createnativestub ************************************************************
3074
3075    Creates a stub routine which calls a native method.
3076
3077 *******************************************************************************/
3078
3079 u1 *createnativestub(functionptr f, jitdata *jd, methoddesc *nmd)
3080 {
3081         methodinfo   *m;
3082         codeinfo     *code;
3083         codegendata  *cd;
3084         registerdata *rd;
3085         methoddesc   *md;
3086         s4            nativeparams;
3087         s4            i, j;                 /* count variables                    */
3088         s4            t;
3089         s4            s1, s2, disp;
3090         s4            funcdisp;
3091
3092         /* get required compiler data */
3093
3094         m    = jd->m;
3095         code = jd->code;
3096         cd   = jd->cd;
3097         rd   = jd->rd;
3098
3099         /* set some variables */
3100
3101         md = m->parseddesc;
3102         nativeparams = (m->flags & ACC_STATIC) ? 2 : 1;
3103
3104         /* calculate stackframe size */
3105
3106         cd->stackframesize =
3107                 sizeof(stackframeinfo) / SIZEOF_VOID_P +
3108                 sizeof(localref_table) / SIZEOF_VOID_P +
3109                 4 +                            /* 4 stackframeinfo arguments (darwin)*/
3110                 nmd->paramcount  +
3111                 nmd->memuse;
3112
3113         cd->stackframesize = (cd->stackframesize + 3) & ~3; /* keep stack 16-byte aligned */
3114
3115         /* create method header */
3116
3117         (void) dseg_addaddress(cd, code);                      /* CodeinfoPointer */
3118         (void) dseg_adds4(cd, cd->stackframesize * 8);             /* FrameSize       */
3119         (void) dseg_adds4(cd, 0);                              /* IsSync          */
3120         (void) dseg_adds4(cd, 0);                              /* IsLeaf          */
3121         (void) dseg_adds4(cd, 0);                              /* IntSave         */
3122         (void) dseg_adds4(cd, 0);                              /* FltSave         */
3123         (void) dseg_addlinenumbertablesize(cd);
3124         (void) dseg_adds4(cd, 0);                              /* ExTableSize     */
3125
3126         /* generate code */
3127
3128         M_MFLR(REG_ZERO);
3129         M_AST_INTERN(REG_ZERO, REG_SP, LA_LR_OFFSET);
3130         M_STDU(REG_SP, REG_SP, -(cd->stackframesize * 8));
3131
3132 #if !defined(NDEBUG)
3133         if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
3134                 emit_verbosecall_enter(jd);
3135         }
3136 #endif
3137         /* get function address (this must happen before the stackframeinfo) */
3138
3139         funcdisp = dseg_addaddress(cd, f);
3140
3141 #if !defined(WITH_STATIC_CLASSPATH)
3142         if (f == NULL) {
3143                 codegen_addpatchref(cd, PATCHER_resolve_native, m, funcdisp);
3144
3145                 if (opt_showdisassemble)
3146                         M_NOP;
3147         }
3148 #endif
3149
3150         /* save integer and float argument registers */
3151
3152         j = 0;
3153
3154         for (i = 0; i < md->paramcount; i++) {
3155                 t = md->paramtypes[i].type;
3156
3157                 if (IS_INT_LNG_TYPE(t)) {
3158                         if (!md->params[i].inmemory) {
3159                                 s1 = md->params[i].regoff;
3160                                 M_LST(rd->argintregs[s1], REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + j * 8);
3161                                 j++;
3162                         }
3163                 }
3164         }
3165
3166         for (i = 0; i < md->paramcount; i++) {
3167                 if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
3168                         if (!md->params[i].inmemory) {
3169                                 s1 = md->params[i].regoff;
3170                                 M_DST(rd->argfltregs[s1], REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + j * 8);
3171                                 j++;
3172                         }
3173                 }
3174         }
3175
3176         /* create native stack info */
3177
3178         M_AADD_IMM(REG_SP, cd->stackframesize * 8, rd->argintregs[0]);
3179         M_MOV(REG_PV, rd->argintregs[1]);
3180         M_AADD_IMM(REG_SP, cd->stackframesize * 8, rd->argintregs[2]);
3181         M_ALD(rd->argintregs[3], REG_SP, cd->stackframesize * 8 + LA_LR_OFFSET);
3182         disp = dseg_addaddress(cd, codegen_start_native_call);
3183
3184         M_ALD(REG_ITMP1, REG_PV, disp);
3185         M_ALD(REG_ITMP1, REG_ITMP1, 0);         /* TOC */
3186         M_MTCTR(REG_ITMP1);
3187         M_JSR;
3188
3189         /* restore integer and float argument registers */
3190
3191         j = 0;
3192
3193         for (i = 0; i < md->paramcount; i++) {
3194                 t = md->paramtypes[i].type;
3195
3196                 if (IS_INT_LNG_TYPE(t)) {
3197                         if (!md->params[i].inmemory) {
3198                                 s1 = md->params[i].regoff;
3199                                 M_LLD(rd->argintregs[s1], REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + j * 8);
3200                                 j++;
3201                         }
3202                 }
3203         }
3204
3205         for (i = 0; i < md->paramcount; i++) {
3206                 if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
3207                         if (!md->params[i].inmemory) {
3208                                 s1 = md->params[i].regoff;
3209                                 M_DLD(rd->argfltregs[s1], REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + j * 8);
3210                                 j++;
3211                         }
3212                 }
3213         }
3214
3215         /* copy or spill arguments to new locations */
3216
3217         for (i = md->paramcount - 1, j = i + nativeparams; i >= 0; i--, j--) {
3218                 t = md->paramtypes[i].type;
3219
3220                 if (IS_INT_LNG_TYPE(t)) {
3221                         if (!md->params[i].inmemory) {
3222                                 s1 = rd->argintregs[md->params[i].regoff];
3223
3224                                 if (!nmd->params[j].inmemory) {
3225                                         s2 = rd->argintregs[nmd->params[j].regoff];
3226                                         M_INTMOVE(s1, s2);
3227                                 } else {
3228                                         s2 = nmd->params[j].regoff;
3229                                         M_LST(s1, REG_SP, s2 * 8);
3230                                 }
3231
3232                         } else {
3233                                 s1 = md->params[i].regoff + cd->stackframesize;
3234                                 s2 = nmd->params[j].regoff;
3235
3236                                 M_LLD(REG_ITMP1, REG_SP, s1 * 8);
3237                                 M_LST(REG_ITMP1, REG_SP, s2 * 8);
3238                         }
3239
3240                 } else {
3241                         /* We only copy spilled float arguments, as the float
3242                            argument registers keep unchanged. */
3243
3244                         if (md->params[i].inmemory) {
3245                                 s1 = md->params[i].regoff + cd->stackframesize;
3246                                 s2 = nmd->params[j].regoff;
3247
3248                                 if (IS_2_WORD_TYPE(t)) {
3249                                         M_DLD(REG_FTMP1, REG_SP, s1 * 8);
3250                                         M_DST(REG_FTMP1, REG_SP, s2 * 8);
3251
3252                                 } else {
3253                                         M_FLD(REG_FTMP1, REG_SP, s1 * 8);
3254                                         M_FST(REG_FTMP1, REG_SP, s2 * 8);
3255                                 }
3256                         }
3257                 }
3258         }
3259
3260         /* put class into second argument register */
3261
3262         if (m->flags & ACC_STATIC) {
3263                 disp = dseg_addaddress(cd, m->class);
3264                 M_ALD(rd->argintregs[1], REG_PV, disp);
3265         }
3266
3267         /* put env into first argument register */
3268
3269         disp = dseg_addaddress(cd, _Jv_env);
3270         M_ALD(rd->argintregs[0], REG_PV, disp);
3271
3272         /* generate the actual native call */
3273         /* native functions have a different TOC for sure */
3274
3275         M_AST(REG_TOC, REG_SP, 40);     /* save old TOC */
3276         M_ALD(REG_ITMP3, REG_PV, funcdisp);
3277         M_ALD(REG_TOC, REG_ITMP3, 8);   /* load TOC from func. descriptor */
3278         M_ALD(REG_ITMP3, REG_ITMP3, 0);
3279         M_MTCTR(REG_ITMP3);
3280         M_JSR;
3281         M_ALD(REG_TOC, REG_SP, 40);     /* restore TOC */
3282
3283         /* save return value */
3284
3285         if (md->returntype.type != TYPE_VOID) {
3286                 if (IS_INT_LNG_TYPE(md->returntype.type)) {
3287                         M_LST(REG_RESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
3288                 }
3289                 else {
3290                         if (IS_2_WORD_TYPE(md->returntype.type))
3291                                 M_DST(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
3292                         else
3293                                 M_FST(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);  /* FIXME, needed ?*/
3294                 }
3295         }
3296
3297         /* print call trace */
3298 #if ! defined(NDEBGUU)
3299         if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
3300                 emit_verbosecall_exit(jd);
3301         }
3302 #endif
3303         /* remove native stackframe info */
3304
3305         M_AADD_IMM(REG_SP, cd->stackframesize * 8, rd->argintregs[0]);
3306         disp = dseg_addaddress(cd, codegen_finish_native_call);
3307         M_ALD(REG_ITMP1, REG_PV, disp);
3308         M_ALD(REG_ITMP1, REG_ITMP1, 0); /* XXX what about TOC? */
3309         M_MTCTR(REG_ITMP1);
3310         M_JSR;
3311         M_MOV(REG_RESULT, REG_ITMP1_XPTR);
3312
3313         /* restore return value */
3314
3315         if (md->returntype.type != TYPE_VOID) {
3316                 if (IS_INT_LNG_TYPE(md->returntype.type)) {
3317                         M_LLD(REG_RESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
3318                 }
3319                 else {
3320                         if (IS_2_WORD_TYPE(md->returntype.type))
3321                                 M_DLD(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
3322                         else
3323                                 M_FLD(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
3324                 }
3325         }
3326
3327         M_ALD(REG_ITMP2_XPC, REG_SP, cd->stackframesize * 8 + LA_LR_OFFSET);
3328         M_MTLR(REG_ITMP2_XPC);
3329         M_LDA(REG_SP, REG_SP, cd->stackframesize * 8); /* remove stackframe           */
3330
3331         /* check for exception */
3332
3333         M_TST(REG_ITMP1_XPTR);
3334         M_BNE(1);                           /* if no exception then return        */
3335
3336         M_RET;
3337
3338         /* handle exception */
3339
3340         M_LADD_IMM(REG_ITMP2_XPC, -4, REG_ITMP2_XPC);  /* exception address       */
3341
3342         disp = dseg_addaddress(cd, asm_handle_nat_exception);
3343         M_ALD(REG_ITMP3, REG_PV, disp);
3344         M_MTCTR(REG_ITMP3);
3345         M_RTS;
3346
3347         /* generate patcher stub call code */
3348
3349         {
3350                 patchref *pref;
3351                 u4        mcode;
3352                 u1       *savedmcodeptr;
3353                 u1       *tmpmcodeptr;
3354
3355                 for (pref = cd->patchrefs; pref != NULL; pref = pref->next) {
3356                         /* Get machine code which is patched back in later. The
3357                            call is 1 instruction word long. */
3358
3359                         tmpmcodeptr = cd->mcodebase + pref->branchpos;
3360
3361                         mcode = *((u4 *) tmpmcodeptr);
3362
3363                         /* Patch in the call to call the following code (done at
3364                            compile time). */
3365
3366                         savedmcodeptr = cd->mcodeptr;   /* save current mcodeptr          */
3367                         cd->mcodeptr  = tmpmcodeptr;    /* set mcodeptr to patch position */
3368
3369                         disp = ((u4 *) savedmcodeptr) - (((u4 *) tmpmcodeptr) + 1);
3370                         M_BL(disp);
3371
3372                         cd->mcodeptr = savedmcodeptr;   /* restore the current mcodeptr   */
3373
3374                         /* create stack frame - keep stack 16-byte aligned */
3375
3376                         M_AADD_IMM(REG_SP, -8 * 8, REG_SP);
3377
3378                         /* move return address onto stack */
3379
3380                         M_MFLR(REG_ZERO);
3381                         M_AST(REG_ZERO, REG_SP, 5 * 8);
3382
3383                         /* move pointer to java_objectheader onto stack */
3384
3385 #if defined(ENABLE_THREADS)
3386                         /* order reversed because of data segment layout */
3387
3388                         (void) dseg_addaddress(cd, NULL);                         /* flcword    */
3389                         (void) dseg_addaddress(cd, lock_get_initial_lock_word()); /* monitorPtr */
3390                         disp = dseg_addaddress(cd, NULL);                         /* vftbl      */
3391
3392                         M_LDA(REG_ITMP3, REG_PV, disp);
3393                         M_AST(REG_ITMP3, REG_SP, 4 * 8);
3394 #else
3395                         /* do nothing */
3396 #endif
3397
3398                         /* move machine code onto stack */
3399
3400                         disp = dseg_adds4(cd, mcode);
3401                         M_ILD(REG_ITMP3, REG_PV, disp);
3402                         M_IST(REG_ITMP3, REG_SP, 3 * 8);
3403
3404                         /* move class/method/field reference onto stack */
3405
3406                         disp = dseg_addaddress(cd, pref->ref);
3407                         M_ALD(REG_ITMP3, REG_PV, disp);
3408                         M_AST(REG_ITMP3, REG_SP, 2 * 8);
3409
3410                         /* move data segment displacement onto stack */
3411
3412                         disp = dseg_adds4(cd, pref->disp);
3413                         M_ILD(REG_ITMP3, REG_PV, disp);
3414                         M_IST(REG_ITMP3, REG_SP, 1 * 8);
3415
3416                         /* move patcher function pointer onto stack */
3417
3418                         disp = dseg_addaddress(cd, pref->patcher);
3419                         M_ALD(REG_ITMP3, REG_PV, disp);
3420                         M_AST(REG_ITMP3, REG_SP, 0 * 8);
3421
3422                         disp = dseg_addaddress(cd, asm_patcher_wrapper);
3423                         M_ALD(REG_ITMP3, REG_PV, disp);
3424                         M_MTCTR(REG_ITMP3);
3425                         M_RTS;
3426                 }
3427         }
3428
3429         codegen_finish(jd);
3430
3431         return code->entrypoint;
3432 }
3433
3434
3435
3436
3437 /*
3438  * These are local overrides for various environment variables in Emacs.
3439  * Please do not remove this and leave it at the end of the file, where
3440  * Emacs will automagically detect them.
3441  * ---------------------------------------------------------------------
3442  * Local variables:
3443  * mode: c
3444  * indent-tabs-mode: t
3445  * c-basic-offset: 4
3446  * tab-width: 4
3447  * End:
3448  * vim:noexpandtab:sw=4:ts=4:
3449  */