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 6032 2006-11-20 18:57:08Z 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_add_unique_address(cd, code);                      /* CodeinfoPointer */
 156         (void) dseg_add_unique_s4(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_add_unique_s4(cd, (rd->memuse + 1) * 8);       /* IsSync          */
 167         else
 168 #endif
 169                 (void) dseg_add_unique_s4(cd, 0);                          /* IsSync          */
 170
 171         (void) dseg_add_unique_s4(cd, jd->isleafmethod);                /* IsLeaf          */
 172         (void) dseg_add_unique_s4(cd, INT_SAV_CNT - rd->savintreguse); /* IntSave         */
 173         (void) dseg_add_unique_s4(cd, FLT_SAV_CNT - rd->savfltreguse); /* FltSave         */
 174
 175         dseg_addlinenumbertablesize(cd);
 176
 177         (void) dseg_add_unique_s4(cd, jd->exceptiontablelength);       /* ExTableSize     */
 178
 179         /* create exception table */
 180
 181         for (ex = jd->exceptiontable; ex != NULL; ex = ex->down) {
 182                 dseg_add_target(cd, ex->start);
 183                 dseg_add_target(cd, ex->end);
 184                 dseg_add_target(cd, ex->handler);
 185                 (void) dseg_add_unique_address(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                                         if (IS_2_WORD_TYPE(t)) {
 246                                                 M_DST(s2, REG_SP, var->vv.regoff * 8);
 247                                         } else {
 248                                                 M_DST(s2, REG_SP, var->vv.regoff * 8);  /*  F XXX */
 249                                         }
 250                                 }
 251
 252                         } else {                                 /* stack arguments       */
 253                                 if (!(var->flags & INMEMORY)) {      /* stack-arg -> register */
 254                                         if (IS_2_WORD_TYPE(t)) {
 255                                                 M_DLD(var->vv.regoff, REG_SP, (cd->stackframesize + s1) * 8);
 256                                         } else {
 257                                                 M_DLD(var->vv.regoff, REG_SP, (cd->stackframesize + s1) * 8);
 258                                         }
 259                                 } else {                             /* stack-arg -> spilled  */
 260                                         var->vv.regoff = cd->stackframesize + s1;
 261                                 }
 262                         }
 263                 }
 264         } /* end for */
 265
 266         /* save monitorenter argument */
 267
 268 #if defined(ENABLE_THREADS)
 269
 270         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
 271
 272                 /* stackoffset for argument used for LOCK_monitor_exit */
 273                 s1 = rd->memuse;
 274 #if !defined (NDEBUG)
 275                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 276                         M_AADD_IMM(REG_SP, -((LA_SIZE_IN_POINTERS + PA_SIZE_IN_POINTERS + ARG_CNT) * 8), REG_SP);
 277
 278                         for (p = 0; p < INT_ARG_CNT; p++)
 279                                 M_LST(rd->argintregs[p], REG_SP, LA_SIZE + PA_SIZE + p * 8);
 280
 281                         for (p = 0; p < FLT_ARG_CNT; p++)
 282                                 M_DST(rd->argfltregs[p], REG_SP, LA_SIZE + PA_SIZE + (INT_ARG_CNT + p) * 8);
 283
 284                         /* used for LOCK_monitor_exit, adopt size because we created another stackframe */
 285                         s1 += (LA_SIZE_IN_POINTERS + PA_SIZE_IN_POINTERS + ARG_CNT);
 286                 }
 287 #endif
 288                 p = dseg_add_functionptr(cd, LOCK_monitor_enter);
 289                 M_ALD(REG_ITMP3, REG_PV, p);
 290                 M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
 291                 M_MTCTR(REG_ITMP3);
 292
 293                 /* get or test the lock object */
 294
 295                 if (m->flags & ACC_STATIC) {
 296                         p = dseg_add_address(cd, &m->class->object.header);
 297                         M_ALD(rd->argintregs[0], REG_PV, p);
 298                 }
 299                 else {
 300                         M_TST(rd->argintregs[0]);
 301                         M_BEQ(0);
 302                         codegen_add_nullpointerexception_ref(cd);
 303                 }
 304
 305                 M_AST(rd->argintregs[0], REG_SP, s1 * 8);       /* rd->memuse * 8 */
 306                 M_JSR;
 307 #if !defined (NDEBUG)
 308                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 309                         for (p = 0; p < INT_ARG_CNT; p++)
 310                                 M_LLD(rd->argintregs[p], REG_SP, LA_SIZE + PA_SIZE + p * 8);
 311
 312                         for (p = 0; p < FLT_ARG_CNT; p++)
 313                                 M_DLD(rd->argfltregs[p], REG_SP, LA_SIZE + PA_SIZE + (INT_ARG_CNT + p) * 8);
 314
 315                         M_AADD_IMM(REG_SP, (LA_SIZE_IN_POINTERS + PA_SIZE_IN_POINTERS + ARG_CNT) * 8, REG_SP);
 316                 }
 317 #endif
 318         }
 319 #endif
 320
 321         /* call trace function */
 322 #if !defined (NDEBUG)
 323         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
 324                 emit_verbosecall_enter(jd);
 325
 326         }
 327 #endif
 328
 329         /* end of header generation */
 330
 331         replacementpoint = jd->code->rplpoints;
 332
 333         /* walk through all basic blocks */
 334         for (bptr = jd->basicblocks; bptr != NULL; bptr = bptr->next) {
 335
 336                 bptr->mpc = (s4) (cd->mcodeptr - cd->mcodebase);
 337
 338                 if (bptr->flags >= BBREACHED) {
 339
 340                 /* branch resolving */
 341
 342                 {
 343                 branchref *brefs;
 344                 for (brefs = bptr->branchrefs; brefs != NULL; brefs = brefs->next) {
 345                         md_codegen_patch_branch(cd, brefs->branchpos, bptr->mpc);
 346                         }
 347                 }
 348
 349                 /* handle replacement points */
 350
 351 #if 0
 352                 if (bptr->bitflags & BBFLAG_REPLACEMENT) {
 353                         replacementpoint->pc = (u1*)(ptrint)bptr->mpc; /* will be resolved later */
 354
 355                         replacementpoint++;
 356                 }
 357 #endif
 358
 359                 /* copy interface registers to their destination */
 360
 361                 len = bptr->indepth;
 362                 MCODECHECK(64+len);
 363
 364 #if defined(ENABLE_LSRA)
 365                 if (opt_lsra) {
 366                         while (len) {
 367                                 len--;
 368                                 var = VAR(bptr->invars[len]);
 369                                 if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 370                                         /* d = reg_of_var(m, var, REG_ITMP1); */
 371                                         if (!(var->flags & INMEMORY))
 372                                                 d = var->vv.regoff;
 373                                         else
 374                                                 d = REG_ITMP1;
 375                                         M_INTMOVE(REG_ITMP1, d);
 376                                         emit_store(jd, NULL, var, d);
 377                                 }
 378                         }
 379                 } else {
 380 #endif
 381                 while (len) {
 382                         len--;
 383                         var = VAR(bptr->invars[len]);
 384                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 385                                 d = codegen_reg_of_var(0, var, REG_ITMP1);
 386                                 M_INTMOVE(REG_ITMP1, d);
 387                                 emit_store(jd, NULL, var, d);
 388                         }
 389                         else {
 390                                 assert((var->flags & INOUT));
 391                         }
 392                 }
 393
 394 #if defined(ENABLE_LSRA)
 395                 }
 396 #endif
 397                 /* walk through all instructions */
 398
 399                 len = bptr->icount;
 400                 currentline = 0;
 401
 402                 for (iptr = bptr->iinstr; len > 0; len--, iptr++) {
 403                         bool sign_ext = false;
 404                         if (iptr->line != currentline) {
 405                                 dseg_addlinenumber(cd, iptr->line);
 406                                 currentline = iptr->line;
 407                         }
 408
 409                         MCODECHECK(64);   /* an instruction usually needs < 64 words      */
 410
 411                         switch (iptr->opc) {
 412                         case ICMD_NOP:    /* ...  ==> ...                                 */
 413                         case ICMD_INLINE_START:
 414                         case ICMD_INLINE_END:
 415                                 break;
 416
 417                 case ICMD_CHECKNULL:  /* ..., objectref  ==> ..., objectref           */
 418
 419                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 420                         M_TST(s1);
 421                         M_BEQ(0);
 422                         codegen_add_nullpointerexception_ref(cd);
 423                         break;
 424
 425                 /* constant operations ************************************************/
 426
 427                 case ICMD_ICONST:     /* ...  ==> ..., constant                       */
 428
 429                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 430                         ICONST(d, iptr->sx.val.i);
 431                         emit_store_dst(jd, iptr, d);
 432                         break;
 433
 434                 case ICMD_LCONST:     /* ...  ==> ..., constant                       */
 435
 436                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 437                         LCONST(d, iptr->sx.val.l);
 438                         emit_store_dst(jd, iptr, d);
 439                         break;
 440
 441                 case ICMD_FCONST:     /* ...  ==> ..., constant                       */
 442
 443                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 444                         a = dseg_add_float(cd, iptr->sx.val.f);
 445                         M_FLD(d, REG_PV, a);
 446                         emit_store_dst(jd, iptr, d);
 447                         break;
 448
 449                 case ICMD_DCONST:     /* ...  ==> ..., constant                       */
 450
 451                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 452                         a = dseg_add_double(cd, iptr->sx.val.d);
 453                         M_DLD(d, REG_PV, a);
 454                         emit_store_dst(jd, iptr, d);
 455                         break;
 456
 457                 case ICMD_ACONST:     /* ...  ==> ..., constant                       */
 458                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 459                         disp = dseg_add_address(cd, iptr->sx.val.anyptr);
 460
 461                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
 462                                 codegen_addpatchref(cd, PATCHER_aconst,
 463                                                                         iptr->sx.val.c.ref,
 464                                                                     disp);
 465
 466                                 if (opt_showdisassemble)
 467                                         M_NOP;
 468                         }
 469
 470                         M_ALD(d, REG_PV, disp);
 471                         emit_store_dst(jd, iptr, d);
 472                         break;
 473
 474
 475                 /* load/store/copy/move operations ************************************/
 476
 477                 case ICMD_ILOAD:      /* ...  ==> ..., content of local variable      */
 478                 case ICMD_ALOAD:      /* s1.localindex = local variable               */
 479                 case ICMD_LLOAD:
 480                 case ICMD_FLOAD:      /* ...  ==> ..., content of local variable      */
 481                 case ICMD_DLOAD:      /* ...  ==> ..., content of local variable      */
 482                 case ICMD_ISTORE:     /* ..., value  ==> ...                          */
 483                 case ICMD_ASTORE:     /* dst.localindex = local variable              */
 484                 case ICMD_LSTORE:
 485                 case ICMD_FSTORE:     /* ..., value  ==> ...                          */
 486                 case ICMD_DSTORE:     /* ..., value  ==> ...                          */
 487                 case ICMD_COPY:
 488                 case ICMD_MOVE:
 489
 490                         emit_copy(jd, iptr, VAROP(iptr->s1), VAROP(iptr->dst));
 491                         break;
 492
 493
 494                 /* pop operations *****************************************************/
 495
 496                 /* attention: double and longs are only one entry in CACAO ICMDs      */
 497
 498                 case ICMD_POP:        /* ..., value  ==> ...                          */
 499                 case ICMD_POP2:       /* ..., value, value  ==> ...                   */
 500
 501                         break;
 502
 503
 504                 /* integer operations *************************************************/
 505
 506                 case ICMD_INEG:       /* ..., value  ==> ..., - value                 */
 507                         sign_ext = true;
 508                 case ICMD_LNEG:
 509                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 510                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 511                         M_NEG(s1, d);
 512                         if (sign_ext) M_EXTSW(d, d);
 513                         emit_store_dst(jd, iptr, d);
 514                         break;
 515
 516
 517                 case ICMD_I2L:        /* ..., value  ==> ..., value                   */
 518
 519                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 520                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 521                         M_INTMOVE(s1, d);
 522                         emit_store_dst(jd, iptr, d);
 523                         break;
 524
 525                 case ICMD_L2I:        /* ..., value  ==> ..., value                   */
 526
 527                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 528                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 529                         M_ISEXT(s1, d);
 530                         emit_store_dst(jd, iptr, d);
 531                         break;
 532
 533                 case ICMD_INT2BYTE:   /* ..., value  ==> ..., value                   */
 534
 535                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 536                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 537                         M_BSEXT(s1, d);
 538                         emit_store_dst(jd, iptr, d);
 539                         break;
 540
 541                 case ICMD_INT2CHAR:   /* ..., value  ==> ..., value                   */
 542
 543                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 544                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 545                         M_CZEXT(s1, d);
 546                         emit_store_dst(jd, iptr, d);
 547                         break;
 548
 549                 case ICMD_INT2SHORT:  /* ..., value  ==> ..., value                   */
 550
 551                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 552                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 553                         M_SSEXT(s1, d);
 554                         emit_store_dst(jd, iptr, d);
 555                         break;
 556
 557
 558                 case ICMD_IADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 559
 560                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 561                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 562                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 563                         M_IADD(s1, s2, d);
 564                         M_EXTSW(d,d);
 565                         emit_store_dst(jd, iptr, d);
 566                         break;
 567
 568                 case ICMD_IINC:
 569                 case ICMD_IADDCONST:
 570
 571                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 572                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 573                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767)) {
 574                                 M_IADD_IMM(s1, iptr->sx.val.i, d);
 575                         } else {
 576                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 577                                 M_IADD(s1, REG_ITMP2, d);
 578                         }
 579                         M_EXTSW(d,d);
 580                         emit_store_dst(jd, iptr, d);
 581                         break;
 582
 583                 case ICMD_LADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 584
 585                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 586                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 587                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 588                         M_LADD(s1, s2, d);
 589                         emit_store_dst(jd, iptr, d);
 590                         break;
 591
 592                 case ICMD_LADDCONST:  /* ..., value  ==> ..., value + constant        */
 593                                       /* sx.val.l = constant                          */
 594
 595                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 596                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 597                         /* XXX check me */
 598                         if ((iptr->sx.val.l >= -32768) && (iptr->sx.val.l <= 32767)) {
 599                                 M_LADD_IMM(s1, iptr->sx.val.l, d);
 600                         } else {
 601                                 LCONST(REG_ITMP2, iptr->sx.val.l);
 602                                 M_LADD(s1, REG_ITMP2, d);
 603                         }
 604                         emit_store_dst(jd, iptr, d);
 605                         break;
 606
 607                 case ICMD_ISUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 608
 609                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 610                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 611                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 612                         M_SUB(s1, s2, d);
 613                         emit_store_dst(jd, iptr, d);
 614                         break;
 615
 616                 case ICMD_ISUBCONST:  /* ..., value  ==> ..., value + constant        */
 617                                       /* sx.val.i = constant                          */
 618
 619                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 620                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 621                         if ((iptr->sx.val.i >= -32767) && (iptr->sx.val.i <= 32768)) {
 622                                 M_IADD_IMM(s1, -iptr->sx.val.i, d);
 623                         } else {
 624                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 625                                 M_SUB(s1, REG_ITMP2, d);
 626                         }
 627                         M_EXTSW(d, d);
 628                         emit_store_dst(jd, iptr, d);
 629                         break;
 630
 631                 case ICMD_LSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 632
 633                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 634                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 635                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 636                         M_SUB(s1, s2, d);
 637                         emit_store_dst(jd, iptr, d);
 638                         break;
 639
 640                 case ICMD_LSUBCONST:  /* ..., value  ==> ..., value - constant        */
 641                                       /* sx.val.l = constant                          */
 642
 643                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 644                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 645                         /* XXX check me */
 646                         if ((iptr->sx.val.l >= -32767) && (iptr->sx.val.l <= 32767)) {
 647                                 M_LADD_IMM(s1, -iptr->sx.val.l, d);
 648                         } else {
 649                                 LCONST(REG_ITMP2, iptr->sx.val.l);
 650                                 M_SUB(s1, REG_ITMP2, d);
 651                         }
 652                         emit_store_dst(jd, iptr, d);
 653                         break;
 654
 655                 case ICMD_IDIV:
 656                         sign_ext = true;
 657                 case ICMD_LDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 658
 659                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 660                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 661                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 662                         M_TST(s2);
 663                         M_BEQ(0);
 664                         codegen_add_arithmeticexception_ref(cd);
 665
 666                         M_DIV(s1, s2, d);
 667                         /* we need to test if divident was 0x8000000000000, bit OV is set in XER in this case */
 668                         /* we only need to check this if we did a LDIV, not for IDIV */
 669                         if (!sign_ext)  {
 670                                 M_MFXER(REG_ITMP2);
 671                                 M_ANDIS(REG_ITMP2, 0x4000, REG_ITMP2);  /* test OV */
 672                                 M_BLE(1);
 673                                 M_MOV(s1, d);                           /* java specs says result == dividend */
 674                         }
 675                         if (sign_ext) M_EXTSW(d, d);
 676                         emit_store_dst(jd, iptr, d);
 677                         break;
 678
 679                 case ICMD_IREM:
 680                         sign_ext = true;
 681                 case ICMD_LREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 682                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 683                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 684                         M_TST(s2);
 685                         M_BEQ(0);
 686                         codegen_add_arithmeticexception_ref(cd);
 687
 688                         M_DIV(s1, s2,  REG_ITMP3);
 689                         /* we need to test if divident was 0x8000000000000, bit OV is set in XER in this case */
 690                         /* we only need to check this if we did a LDIV, not for IDIV */
 691                         if (!sign_ext)  {
 692                                 M_MFXER(REG_ITMP2);
 693                                 M_ANDIS(REG_ITMP2, 0x4000, REG_ITMP2);  /* test OV */
 694                                 M_BLE(2);
 695                                 LCONST(REG_ITMP3, 0);                   /* result == 0 in this case */
 696                                 M_BR(2);
 697                         }
 698                         M_MUL(REG_ITMP3, s2, REG_ITMP2);
 699                         M_SUB(s1, REG_ITMP2,  REG_ITMP3);
 700                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 701
 702                         M_MOV(REG_ITMP3, d);
 703                         emit_store_dst(jd, iptr, REG_ITMP1);
 704                         break;
 705
 706
 707                 case ICMD_IMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 708                         sign_ext = true;
 709                 case ICMD_LMUL:
 710                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 711                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 712                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 713                         M_MUL(s1, s2, d);
 714                         if (sign_ext) M_EXTSW(d, d);
 715                         emit_store_dst(jd, iptr, d);
 716                         break;
 717
 718                 case ICMD_IMULCONST:  /* ..., value  ==> ..., value * constant        */
 719                                       /* sx.val.i = constant                          */
 720
 721                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 722                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 723                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767))
 724                                 M_MUL_IMM(s1, iptr->sx.val.i, d);
 725                         else {
 726                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 727                                 M_MUL(s1, REG_ITMP3, d);
 728                         }
 729                         M_EXTSW(d, d);
 730                         emit_store_dst(jd, iptr, d);
 731                         break;
 732                 case ICMD_LMULCONST:
 733                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 734                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 735                         if ((iptr->sx.val.l >= -32767) && (iptr->sx.val.l <= 32767))
 736                                 M_MUL_IMM(s1, iptr->sx.val.l, d);
 737                         else {
 738                                 LCONST(REG_ITMP3, iptr->sx.val.l);
 739                                 M_MUL(s1, REG_ITMP3, d);
 740                         }
 741                         emit_store_dst(jd, iptr, d);
 742                         break;
 743
 744                 case ICMD_IDIVPOW2:   /* ..., value  ==> ..., value << constant       */
 745
 746                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 747                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 748                         M_SRA_IMM(s1, iptr->sx.val.i, d);
 749                         M_ADDZE(d, d);
 750                         emit_store_dst(jd, iptr, d);
 751                         break;
 752
 753                 case ICMD_ISHL:       /* ..., val1, val2  ==> ..., val1 << val2       */
 754
 755                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 756                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 757                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 758                         M_AND_IMM(s2, 0x1f, REG_ITMP3);
 759                         M_SLL(s1, REG_ITMP3, d);
 760                         M_EXTSW(d, d);
 761                         emit_store_dst(jd, iptr, d);
 762                         break;
 763
 764                 case ICMD_ISHLCONST:  /* ..., 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                         M_SLL_IMM(s1, iptr->sx.val.i & 0x1f, d);
 770                         M_EXTSW(d,d);
 771                         emit_store_dst(jd, iptr, d);
 772                         break;
 773
 774                 case ICMD_ISHR:       /* ..., val1, val2  ==> ..., val1 >> val2       */
 775
 776                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 777                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 778                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 779                         M_AND_IMM(s2, 0x1f, REG_ITMP3);
 780                         M_SRA(s1, REG_ITMP3, d);
 781                         emit_store_dst(jd, iptr, d);
 782                         break;
 783
 784                 case ICMD_ISHRCONST:  /* ..., value  ==> ..., value >> constant       */
 785                                       /* sx.val.i = constant                             */
 786
 787                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 788                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 789                         M_SRA_IMM(s1, iptr->sx.val.i & 0x1f, d);
 790                         emit_store_dst(jd, iptr, d);
 791                         break;
 792
 793                 case ICMD_IUSHR:      /* ..., val1, val2  ==> ..., val1 >>> val2      */
 794
 795                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 796                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 797                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 798                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 799                         M_SRL(s1, REG_ITMP2, d);
 800                         emit_store_dst(jd, iptr, d);
 801                         break;
 802
 803                 case ICMD_IUSHRCONST: /* ..., value  ==> ..., value >>> constant      */
 804                                       /* sx.val.i = constant                             */
 805
 806                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 807                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 808                         if (iptr->sx.val.i & 0x1f) {
 809                                 M_SRL_IMM(s1, iptr->sx.val.i & 0x1f, d);
 810                         } else {
 811                                 M_INTMOVE(s1, d);
 812                         }
 813                         emit_store_dst(jd, iptr, d);
 814                         break;
 815
 816                 case ICMD_IAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 817                 case ICMD_LAND:
 818
 819                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 820                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 821                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 822                         M_AND(s1, s2, d);
 823                         emit_store_dst(jd, iptr, d);
 824                         break;
 825
 826                 case ICMD_IANDCONST:  /* ..., 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                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535)) {
 832                                 M_AND_IMM(s1, iptr->sx.val.i, d);
 833                                 }
 834                         /*
 835                         else if (iptr->sx.val.i == 0xffffff) {
 836                                 M_RLWINM(s1, 0, 8, 31, d);
 837                                 }
 838                         */
 839                         else {
 840                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 841                                 M_AND(s1, REG_ITMP3, d);
 842                         }
 843                         emit_store_dst(jd, iptr, d);
 844                         break;
 845
 846                 case ICMD_LANDCONST:  /* ..., value  ==> ..., value & constant        */
 847                                       /* sx.val.l = constant                          */
 848
 849                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 850                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 851                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
 852                                 M_AND_IMM(s1, iptr->sx.val.l, d);
 853                         /*
 854                         else if (iptr->sx.val.l == 0xffffff) {
 855                                 M_RLWINM(s1, 0, 8, 31, d);
 856                                 }
 857                         */
 858                         else {
 859                                 LCONST(REG_ITMP3, iptr->sx.val.l);
 860                                 M_AND(s1, REG_ITMP3, d);
 861                         }
 862                         emit_store_dst(jd, iptr, d);
 863                         break;
 864
 865                 case ICMD_IREMPOW2:   /* ..., value  ==> ..., value % constant        */
 866                                       /* sx.val.i = constant                             */
 867                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 868                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 869                         M_MOV(s1, REG_ITMP2);
 870                         M_CMPI(s1, 0);
 871                         M_BGE(1 + 2*(iptr->sx.val.i >= 32768));
 872                         if (iptr->sx.val.i >= 32768) {
 873                                 M_ADDIS(REG_ZERO, iptr->sx.val.i >> 16, REG_ITMP2);
 874                                 M_OR_IMM(REG_ITMP2, iptr->sx.val.i, REG_ITMP2);
 875                                 M_IADD(s1, REG_ITMP2, REG_ITMP2);
 876                         } else {
 877                                 M_IADD_IMM(s1, iptr->sx.val.i, REG_ITMP2);
 878                         }
 879                         {
 880                                 int b=0, m = iptr->sx.val.i;
 881                                 while (m >>= 1)
 882                                         ++b;
 883                                 M_RLWINM(REG_ITMP2, 0, 0, 30-b, REG_ITMP2);
 884                         }
 885                         M_SUB(s1, REG_ITMP2, d);
 886                         M_EXTSW(d, d);
 887                         emit_store_dst(jd, iptr, d);
 888                         break;
 889
 890                 case ICMD_IOR:        /* ..., val1, val2  ==> ..., val1 | val2        */
 891                 case ICMD_LOR:
 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_ITMP3);
 896                         M_OR(s1, s2, d);
 897                         emit_store_dst(jd, iptr, d);
 898                         break;
 899
 900                 case ICMD_IORCONST:   /* ..., 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_OR_IMM(s1, iptr->sx.val.i, d);
 907                         else {
 908                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 909                                 M_OR(s1, REG_ITMP3, d);
 910                         }
 911                         emit_store_dst(jd, iptr, d);
 912                         break;
 913
 914                 case ICMD_LORCONST:   /* ..., 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_OR_IMM(s1, iptr->sx.val.l, d);
 921                         else {
 922                                 LCONST(REG_ITMP3, iptr->sx.val.l);
 923                                 M_OR(s1, REG_ITMP3, d);
 924                         }
 925                         emit_store_dst(jd, iptr, d);
 926                         break;
 927
 928
 929                 case ICMD_IXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
 930                 case ICMD_LXOR:
 931
 932                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 933                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 934                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 935                         M_XOR(s1, s2, d);
 936                         emit_store_dst(jd, iptr, d);
 937                         break;
 938
 939                 case ICMD_IXORCONST:  /* ..., value  ==> ..., value ^ constant        */
 940                                       /* sx.val.i = constant                          */
 941
 942                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 943                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 944                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
 945                                 M_XOR_IMM(s1, iptr->sx.val.i, d);
 946                         else {
 947                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 948                                 M_XOR(s1, REG_ITMP3, d);
 949                         }
 950                         emit_store_dst(jd, iptr, d);
 951                         break;
 952
 953                 case ICMD_LXORCONST:  /* ..., value  ==> ..., value ^ constant        */
 954                                       /* sx.val.l = constant                          */
 955
 956                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 957                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 958                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
 959                                 M_XOR_IMM(s1, iptr->sx.val.l, d);
 960                         else {
 961                                 LCONST(REG_ITMP3, iptr->sx.val.l);
 962                                 M_XOR(s1, REG_ITMP3, d);
 963                         }
 964                         emit_store_dst(jd, iptr, d);
 965                         break;
 966
 967                 case ICMD_LCMP:       /* ..., val1, val2  ==> ..., val1 cmp val2      */
 968
 969                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 970                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 971                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 972                         /* XXX implement me!!! */
 973                         emit_store_dst(jd, iptr, d);
 974                         break;
 975                         break;
 976
 977
 978                 /* floating operations ************************************************/
 979
 980                 case ICMD_FNEG:       /* ..., value  ==> ..., - value                 */
 981
 982                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 983                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
 984                         M_FMOVN(s1, d);
 985                         emit_store_dst(jd, iptr, d);
 986                         break;
 987
 988                 case ICMD_DNEG:       /* ..., value  ==> ..., - value                 */
 989
 990                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 991                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
 992                         M_FMOVN(s1, d);
 993                         emit_store_dst(jd, iptr, d);
 994                         break;
 995
 996                 case ICMD_FADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 997
 998                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 999                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1000                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1001                         M_FADD(s1, s2, d);
1002                         emit_store_dst(jd, iptr, d);
1003                         break;
1004
1005                 case ICMD_DADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
1006
1007                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1008                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1009                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1010                         M_DADD(s1, s2, d);
1011                         emit_store_dst(jd, iptr, d);
1012                         break;
1013
1014                 case ICMD_FSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
1015
1016                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1017                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1018                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1019                         M_FSUB(s1, s2, d);
1020                         emit_store_dst(jd, iptr, d);
1021                         break;
1022
1023                 case ICMD_DSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
1024
1025                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1026                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1027                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1028                         M_DSUB(s1, s2, d);
1029                         emit_store_dst(jd, iptr, d);
1030                         break;
1031
1032                 case ICMD_FMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1033
1034                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1035                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1036                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1037                         M_FMUL(s1, s2, d);
1038                         emit_store_dst(jd, iptr, d);
1039                         break;
1040
1041                 case ICMD_DMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1042
1043                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1044                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1045                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1046                         M_DMUL(s1, s2, d);
1047                         emit_store_dst(jd, iptr, d);
1048                         break;
1049
1050                 case ICMD_FDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1051
1052                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1053                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1054                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1055                         M_FDIV(s1, s2, d);
1056                         emit_store_dst(jd, iptr, d);
1057                         break;
1058
1059                 case ICMD_DDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1060
1061                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1062                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1063                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1064                         M_DDIV(s1, s2, d);
1065                         emit_store_dst(jd, iptr, d);
1066                         break;
1067
1068                 case ICMD_F2I:       /* ..., value  ==> ..., (int) value              */
1069                 case ICMD_D2I:
1070
1071                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1072                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1073                         M_CLR(d);
1074                         disp = dseg_add_float(cd, 0.0);
1075                         M_FLD(REG_FTMP2, REG_PV, disp);
1076                         M_FCMPU(s1, REG_FTMP2);
1077                         M_BNAN(4);
1078                         disp = dseg_add_unique_s4(cd, 0);
1079                         M_CVTDL_C(s1, REG_FTMP1);
1080                         M_LDA(REG_ITMP1, REG_PV, disp);
1081                         M_STFIWX(REG_FTMP1, 0, REG_ITMP1);
1082                         M_ILD(d, REG_PV, disp);
1083                         emit_store_dst(jd, iptr, d);
1084                         break;
1085
1086                 case ICMD_F2D:       /* ..., value  ==> ..., (double) value           */
1087
1088                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1089                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1090                         M_FLTMOVE(s1, d);
1091                         emit_store_dst(jd, iptr, d);
1092                         break;
1093
1094                 case ICMD_D2F:       /* ..., value  ==> ..., (double) value           */
1095
1096                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1097                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1098                         M_CVTDF(s1, d);
1099                         emit_store_dst(jd, iptr, d);
1100                         break;
1101
1102                 case ICMD_FCMPL:      /* ..., val1, val2  ==> ..., val1 fcmpg val2    */
1103                 case ICMD_DCMPL:      /* == => 0, < => 1, > => -1                     */
1104
1105
1106                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1107                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1108                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1109                         M_FCMPU(s2, s1);
1110                         M_IADD_IMM(REG_ZERO, -1, d);
1111                         M_BNAN(4);
1112                         M_BGT(3);
1113                         M_IADD_IMM(REG_ZERO, 0, d);
1114                         M_BGE(1);
1115                         M_IADD_IMM(REG_ZERO, 1, d);
1116                         emit_store_dst(jd, iptr, d);
1117                         break;
1118
1119                 case ICMD_FCMPG:      /* ..., val1, val2  ==> ..., val1 fcmpl val2    */
1120                 case ICMD_DCMPG:      /* == => 0, < => 1, > => -1                     */
1121
1122                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1123                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1124                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1125                         M_FCMPU(s1, s2);
1126                         M_IADD_IMM(REG_ZERO, 1, d);
1127                         M_BNAN(4);
1128                         M_BGT(3);
1129                         M_IADD_IMM(REG_ZERO, 0, d);
1130                         M_BGE(1);
1131                         M_IADD_IMM(REG_ZERO, -1, d);
1132                         emit_store_dst(jd, iptr, d);
1133                         break;
1134
1135                 case ICMD_IF_FCMPEQ:    /* ..., value, value ==> ...                  */
1136                 case ICMD_IF_DCMPEQ:
1137
1138                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1139                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1140                         M_FCMPU(s1, s2);
1141                         M_BNAN(1);
1142                         M_BEQ(0);
1143                         codegen_addreference(cd, iptr->dst.block);
1144                         break;
1145
1146                 case ICMD_IF_FCMPNE:    /* ..., value, value ==> ...                  */
1147                 case ICMD_IF_DCMPNE:
1148
1149                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1150                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1151                         M_FCMPU(s1, s2);
1152                         M_BNAN(0);
1153                         codegen_addreference(cd, iptr->dst.block);
1154                         M_BNE(0);
1155                         codegen_addreference(cd, iptr->dst.block);
1156                         break;
1157
1158
1159                 case ICMD_IF_FCMPL_LT:  /* ..., value, value ==> ...                  */
1160                 case ICMD_IF_DCMPL_LT:
1161
1162                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1163                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1164                         M_FCMPU(s1, s2);
1165                         M_BNAN(0);
1166                         codegen_addreference(cd, iptr->dst.block);
1167                         M_BLT(0);
1168                         codegen_addreference(cd, iptr->dst.block);
1169                         break;
1170
1171                 case ICMD_IF_FCMPL_GT:  /* ..., value, value ==> ...                  */
1172                 case ICMD_IF_DCMPL_GT:
1173
1174                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1175                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1176                         M_FCMPU(s1, s2);
1177                         M_BNAN(1);
1178                         M_BGT(0);
1179                         codegen_addreference(cd, iptr->dst.block);
1180                         break;
1181
1182                 case ICMD_IF_FCMPL_LE:  /* ..., value, value ==> ...                  */
1183                 case ICMD_IF_DCMPL_LE:
1184
1185                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1186                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1187                         M_FCMPU(s1, s2);
1188                         M_BNAN(0);
1189                         codegen_addreference(cd, iptr->dst.block);
1190                         M_BLE(0);
1191                         codegen_addreference(cd, iptr->dst.block);
1192                         break;
1193
1194                 case ICMD_IF_FCMPL_GE:  /* ..., value, value ==> ...                  */
1195                 case ICMD_IF_DCMPL_GE:
1196
1197                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1198                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1199                         M_FCMPU(s1, s2);
1200                         M_BNAN(1);
1201                         M_BGE(0);
1202                         codegen_addreference(cd, iptr->dst.block);
1203                         break;
1204
1205                 case ICMD_IF_FCMPG_LT:  /* ..., value, value ==> ...                  */
1206                 case ICMD_IF_DCMPG_LT:
1207
1208                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1209                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1210                         M_FCMPU(s1, s2);
1211                         M_BNAN(1);
1212                         M_BLT(0);
1213                         codegen_addreference(cd, iptr->dst.block);
1214                         break;
1215
1216                 case ICMD_IF_FCMPG_GT:  /* ..., value, value ==> ...                  */
1217                 case ICMD_IF_DCMPG_GT:
1218
1219                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1220                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1221                         M_FCMPU(s1, s2);
1222                         M_BNAN(0);
1223                         codegen_addreference(cd, iptr->dst.block);
1224                         M_BGT(0);
1225                         codegen_addreference(cd, iptr->dst.block);
1226                         break;
1227
1228                 case ICMD_IF_FCMPG_LE:  /* ..., value, value ==> ...                  */
1229                 case ICMD_IF_DCMPG_LE:
1230
1231                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1232                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1233                         M_FCMPU(s1, s2);
1234                         M_BNAN(1);
1235                         M_BLE(0);
1236                         codegen_addreference(cd, iptr->dst.block);
1237                         break;
1238
1239                 case ICMD_IF_FCMPG_GE:  /* ..., value, value ==> ...                  */
1240                 case ICMD_IF_DCMPG_GE:
1241
1242                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1243                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1244                         M_FCMPU(s1, s2);
1245                         M_BNAN(0);
1246                         codegen_addreference(cd, iptr->dst.block);
1247                         M_BGE(0);
1248                         codegen_addreference(cd, iptr->dst.block);
1249                         break;
1250
1251
1252                 /* memory operations **************************************************/
1253
1254                 case ICMD_ARRAYLENGTH: /* ..., arrayref  ==> ..., length              */
1255
1256                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1257                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1258                         gen_nullptr_check(s1);
1259                         M_ILD(d, s1, OFFSET(java_arrayheader, size));
1260                         emit_store_dst(jd, iptr, d);
1261                         break;
1262
1263                 case ICMD_BALOAD:     /* ..., arrayref, index  ==> ..., value         */
1264
1265                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1266                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1267                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1268                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1269                                 gen_nullptr_check(s1);
1270                                 gen_bound_check;
1271                         }
1272                         M_IADD_IMM(s2, OFFSET(java_bytearray, data[0]), REG_ITMP2);
1273                         M_LBZX(d, s1, REG_ITMP2);
1274                         M_BSEXT(d, d);
1275                         emit_store_dst(jd, iptr, d);
1276                         break;
1277
1278                 case ICMD_CALOAD:     /* ..., arrayref, index  ==> ..., value         */
1279
1280                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1281                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1282                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1283                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1284                                 gen_nullptr_check(s1);
1285                                 gen_bound_check;
1286                         }
1287                         M_SLL_IMM(s2, 1, REG_ITMP2);
1288                         M_IADD_IMM(REG_ITMP2, OFFSET(java_chararray, data[0]), REG_ITMP2);
1289                         M_LHAX(d, s1, REG_ITMP2);
1290                         emit_store_dst(jd, iptr, d);
1291                         break;
1292
1293                 case ICMD_SALOAD:     /* ..., arrayref, index  ==> ..., value         */
1294
1295                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1296                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1297                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1298                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1299                                 gen_nullptr_check(s1);
1300                                 gen_bound_check;
1301                         }
1302                         M_SLL_IMM(s2, 1, REG_ITMP2);
1303                         M_IADD_IMM(REG_ITMP2, OFFSET(java_shortarray, data[0]), REG_ITMP2);
1304                         M_LHAX(d, s1, REG_ITMP2);
1305                         emit_store_dst(jd, iptr, d);
1306                         break;
1307
1308                 case ICMD_IALOAD:     /* ..., arrayref, index  ==> ..., value         */
1309
1310                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1311                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1312                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1313                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1314                                 gen_nullptr_check(s1);
1315                                 gen_bound_check;
1316                         }
1317                         M_SLL_IMM(s2, 2, REG_ITMP2);
1318                         M_IADD_IMM(REG_ITMP2, OFFSET(java_intarray, data[0]), REG_ITMP2);
1319                         M_LWZX(d, s1, REG_ITMP2);
1320                         emit_store_dst(jd, iptr, d);
1321                         break;
1322
1323                 case ICMD_LALOAD:     /* ..., arrayref, index  ==> ..., value         */
1324
1325                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1326                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1327                         d = codegen_reg_of_dst(jd, iptr, PACK_REGS(REG_ITMP2, REG_ITMP1));
1328                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1329                                 gen_nullptr_check(s1);
1330                                 gen_bound_check;
1331                         }
1332                         M_SLL_IMM(s2, 3, REG_ITMP2);
1333                         M_IADD(s1, REG_ITMP2, REG_ITMP2);
1334                         M_LLD_INTERN(d, REG_ITMP2, OFFSET(java_longarray, data[0]));
1335                         emit_store_dst(jd, iptr, d);
1336                         break;
1337
1338                 case ICMD_FALOAD:     /* ..., arrayref, index  ==> ..., value         */
1339
1340                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1341                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1342                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1343                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1344                                 gen_nullptr_check(s1);
1345                                 gen_bound_check;
1346                         }
1347                         M_SLL_IMM(s2, 2, REG_ITMP2);
1348                         M_IADD_IMM(REG_ITMP2, OFFSET(java_floatarray, data[0]), REG_ITMP2);
1349                         M_LFSX(d, s1, REG_ITMP2);
1350                         emit_store_dst(jd, iptr, d);
1351                         break;
1352
1353                 case ICMD_DALOAD:     /* ..., arrayref, index  ==> ..., value         */
1354
1355                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1356                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1357                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1358                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1359                                 gen_nullptr_check(s1);
1360                                 gen_bound_check;
1361                         }
1362                         M_SLL_IMM(s2, 3, REG_ITMP2);
1363                         M_IADD_IMM(REG_ITMP2, OFFSET(java_doublearray, data[0]), REG_ITMP2);
1364                         M_LFDX(d, s1, REG_ITMP2);
1365                         emit_store_dst(jd, iptr, d);
1366                         break;
1367
1368                 case ICMD_AALOAD:     /* ..., arrayref, index  ==> ..., value         */
1369
1370                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1371                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1372                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1373                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1374                                 gen_nullptr_check(s1);
1375                                 gen_bound_check;
1376                         }
1377                         M_SLL_IMM(s2, 3, REG_ITMP2);
1378                         M_IADD_IMM(REG_ITMP2, OFFSET(java_objectarray, data[0]), REG_ITMP2);
1379                         M_ALDX(d, s1, REG_ITMP2);
1380                         emit_store_dst(jd, iptr, d);
1381                         break;
1382
1383
1384                 case ICMD_BASTORE:    /* ..., arrayref, index, value  ==> ...         */
1385
1386                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1387                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1388                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1389                                 gen_nullptr_check(s1);
1390                                 gen_bound_check;
1391                         }
1392                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1393                         M_IADD_IMM(s2, OFFSET(java_bytearray, data[0]), REG_ITMP2);
1394                         M_STBX(s3, s1, REG_ITMP2);
1395                         break;
1396
1397                 case ICMD_CASTORE:    /* ..., arrayref, index, value  ==> ...         */
1398
1399                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1400                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1401                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1402                                 gen_nullptr_check(s1);
1403                                 gen_bound_check;
1404                         }
1405                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1406                         M_SLL_IMM(s2, 1, REG_ITMP2);
1407                         M_IADD_IMM(REG_ITMP2, OFFSET(java_chararray, data[0]), REG_ITMP2);
1408                         M_STHX(s3, s1, REG_ITMP2);
1409                         break;
1410
1411                 case ICMD_SASTORE:    /* ..., arrayref, index, value  ==> ...         */
1412
1413                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1414                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1415                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1416                                 gen_nullptr_check(s1);
1417                                 gen_bound_check;
1418                         }
1419                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1420                         M_SLL_IMM(s2, 1, REG_ITMP2);
1421                         M_IADD_IMM(REG_ITMP2, OFFSET(java_shortarray, data[0]), REG_ITMP2);
1422                         M_STHX(s3, s1, REG_ITMP2);
1423                         break;
1424
1425                 case ICMD_IASTORE:    /* ..., arrayref, index, value  ==> ...         */
1426
1427                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1428                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1429                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1430                                 gen_nullptr_check(s1);
1431                                 gen_bound_check;
1432                         }
1433                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1434                         M_SLL_IMM(s2, 2, REG_ITMP2);
1435                         M_IADD_IMM(REG_ITMP2, OFFSET(java_intarray, data[0]), REG_ITMP2);
1436                         M_STWX(s3, s1, REG_ITMP2);
1437                         break;
1438
1439                 case ICMD_LASTORE:    /* ..., arrayref, index, value  ==> ...         */
1440
1441                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1442                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1443                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1444                                 gen_nullptr_check(s1);
1445                                 gen_bound_check;
1446                         }
1447                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1448                         M_SLL_IMM(s2, 3, REG_ITMP2);
1449                         M_IADD_IMM(REG_ITMP2, OFFSET(java_longarray, data[0]), REG_ITMP2);
1450                         M_LSTX(s3, s1, REG_ITMP2);
1451                         break;
1452
1453                 case ICMD_FASTORE:    /* ..., arrayref, index, value  ==> ...         */
1454
1455                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1456                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1457                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1458                                 gen_nullptr_check(s1);
1459                                 gen_bound_check;
1460                         }
1461                         s3 = emit_load_s3(jd, iptr, REG_FTMP3);
1462                         M_SLL_IMM(s2, 2, REG_ITMP2);
1463                         M_IADD_IMM(REG_ITMP2, OFFSET(java_floatarray, data[0]), REG_ITMP2);
1464                         M_STFSX(s3, s1, REG_ITMP2);
1465                         break;
1466
1467                 case ICMD_DASTORE:    /* ..., arrayref, index, value  ==> ...         */
1468
1469                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1470                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1471                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1472                                 gen_nullptr_check(s1);
1473                                 gen_bound_check;
1474                         }
1475                         s3 = emit_load_s3(jd, iptr, REG_FTMP3);
1476                         M_SLL_IMM(s2, 3, REG_ITMP2);
1477                         M_IADD_IMM(REG_ITMP2, OFFSET(java_doublearray, data[0]), REG_ITMP2);
1478                         M_STFDX(s3, s1, REG_ITMP2);
1479                         break;
1480
1481                 case ICMD_AASTORE:    /* ..., arrayref, index, value  ==> ...         */
1482
1483                         s1 = emit_load_s1(jd, iptr, rd->argintregs[0]);
1484                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1485                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1486                                 gen_nullptr_check(s1);
1487                                 gen_bound_check;
1488                         }
1489                         s3 = emit_load_s3(jd, iptr, rd->argintregs[1]);
1490
1491                         disp = dseg_add_functionptr(cd, BUILTIN_canstore);
1492                         M_ALD(REG_ITMP3, REG_PV, disp);
1493                         M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
1494                         M_MTCTR(REG_ITMP3);
1495
1496                         M_INTMOVE(s1, rd->argintregs[0]);
1497                         M_INTMOVE(s3, rd->argintregs[1]);
1498
1499                         M_JSR;
1500                         M_TST(REG_RESULT);
1501                         M_BEQ(0);
1502                         codegen_add_arraystoreexception_ref(cd);
1503
1504                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1505                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1506                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1507                         M_SLL_IMM(s2, 3, REG_ITMP2);
1508                         M_IADD_IMM(REG_ITMP2, OFFSET(java_objectarray, data[0]), REG_ITMP2);
1509                         M_ASTX(s3, s1, REG_ITMP2);
1510                         break;
1511
1512
1513                 case ICMD_GETSTATIC:  /* ...  ==> ..., value                          */
1514
1515                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1516                                 uf = iptr->sx.s23.s3.uf;
1517
1518                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1519                                 disp = dseg_add_unique_address(cd, NULL);
1520
1521                                 codegen_addpatchref(cd, PATCHER_get_putstatic,
1522                                                                         iptr->sx.s23.s3.uf, disp);
1523
1524                         } else {
1525                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1526
1527                                 fieldtype = fi->type;
1528                                 disp = dseg_add_address(cd, &(fi->value));
1529
1530                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1531                                         codegen_addpatchref(cd, PATCHER_clinit, fi->class, disp);
1532                                 }
1533                         }
1534
1535                         M_ALD(REG_ITMP1, REG_PV, disp);
1536                         switch (fieldtype) {
1537                         case TYPE_INT:
1538                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1539                                 M_ILD_INTERN(d, REG_ITMP1, 0);
1540                                 break;
1541                         case TYPE_LNG:
1542                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1543                                 M_LLD(d, REG_ITMP1, 0);
1544                                 break;
1545                         case TYPE_ADR:
1546                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1547                                 M_ALD_INTERN(d, REG_ITMP1, 0);
1548                                 break;
1549                         case TYPE_FLT:
1550                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1551                                 M_FLD_INTERN(d, REG_ITMP1, 0);
1552                                 break;
1553                         case TYPE_DBL:
1554                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1555                                 M_DLD_INTERN(d, REG_ITMP1, 0);
1556                                 break;
1557                         }
1558                         emit_store_dst(jd, iptr, d);
1559                         break;
1560
1561                 case ICMD_PUTSTATIC:  /* ..., value  ==> ...                          */
1562
1563
1564                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1565                                 uf = iptr->sx.s23.s3.uf;
1566
1567                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1568                                 disp = dseg_add_unique_address(cd, NULL);
1569
1570                                 codegen_addpatchref(cd, PATCHER_get_putstatic,
1571                                                                         iptr->sx.s23.s3.uf, disp);
1572                         } else {
1573                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1574
1575                                 fieldtype = fi->type;
1576                                 disp = dseg_add_address(cd, &(fi->value));
1577
1578                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1579                                         codegen_addpatchref(cd, PATCHER_clinit, fi->class, disp);
1580                                 }
1581                         }
1582
1583                         M_ALD(REG_ITMP1, REG_PV, disp);
1584                         switch (fieldtype) {
1585                         case TYPE_INT:
1586                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1587                                 M_IST_INTERN(s1, REG_ITMP1, 0);
1588                                 break;
1589                         case TYPE_LNG:
1590                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1591                                 M_LST_INTERN(s1, REG_ITMP1, 0);
1592                                 break;
1593                         case TYPE_ADR:
1594                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1595                                 M_AST_INTERN(s1, REG_ITMP1, 0);
1596                                 break;
1597                         case TYPE_FLT:
1598                                 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1599                                 M_FST_INTERN(s1, REG_ITMP1, 0);
1600                                 break;
1601                         case TYPE_DBL:
1602                                 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1603                                 M_DST_INTERN(s1, REG_ITMP1, 0);
1604                                 break;
1605                         }
1606                         break;
1607
1608
1609                 case ICMD_GETFIELD:   /* ...  ==> ..., value                          */
1610
1611                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1612                         gen_nullptr_check(s1);
1613
1614                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1615                                 uf = iptr->sx.s23.s3.uf;
1616                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1617                                 disp = 0;
1618
1619                                 codegen_addpatchref(cd, PATCHER_get_putfield, uf, 0);
1620
1621                                 if (opt_showdisassemble)
1622                                         M_NOP;
1623
1624                         } else {
1625                                 fi = iptr->sx.s23.s3.fmiref->p.field;
1626                                 fieldtype = fi->type;
1627                                 disp = fi->offset;
1628                         }
1629
1630                         switch (fieldtype) {
1631                         case TYPE_INT:
1632                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1633                                 M_ILD(d, s1, disp);
1634                                 break;
1635                         case TYPE_LNG:
1636                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1637                                 M_LLD(d, s1, disp);
1638                                 break;
1639                         case TYPE_ADR:
1640                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1641                                 M_ALD(d, s1, disp);
1642                                 break;
1643                         case TYPE_FLT:
1644                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1645                                 M_FLD(d, s1, disp);
1646                                 break;
1647                         case TYPE_DBL:
1648                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1649                                 M_DLD(d, s1, disp);
1650                                 break;
1651                         }
1652                         emit_store_dst(jd, iptr, d);
1653                         break;
1654
1655                 case ICMD_PUTFIELD:   /* ..., value  ==> ...                          */
1656
1657                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1658                         gen_nullptr_check(s1);
1659
1660                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1661                                 uf        = iptr->sx.s23.s3.uf;
1662                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1663                                 disp      = 0;
1664                         }
1665                         else {
1666                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1667                                 fieldtype = fi->type;
1668                                 disp      = fi->offset;
1669                         }
1670
1671                         if (IS_INT_LNG_TYPE(fieldtype)) {
1672                                 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1673                         }
1674                         else
1675                                 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1676
1677                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1678                                 codegen_addpatchref(cd, PATCHER_get_putfield, uf, 0);
1679
1680                                 if (opt_showdisassemble)
1681                                         M_NOP;
1682                         }
1683
1684
1685                         switch (fieldtype) {
1686                         case TYPE_INT:
1687                                 M_IST(s2, s1, disp);
1688                                 break;
1689                         case TYPE_LNG:
1690                                 M_LST(s2, s1, disp);
1691                                 break;
1692                         case TYPE_ADR:
1693                                 M_AST(s2, s1, disp);
1694                                 break;
1695                         case TYPE_FLT:
1696                                 M_FST(s2, s1, disp);
1697                                 break;
1698                         case TYPE_DBL:
1699                                 M_DST(s2, s1, disp);
1700                                 break;
1701                         }
1702                         break;
1703
1704
1705                 /* branch operations **************************************************/
1706
1707                 case ICMD_ATHROW:       /* ..., objectref ==> ... (, objectref)       */
1708
1709                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1710                         M_LNGMOVE(s1, REG_ITMP1_XPTR);
1711
1712 #ifdef ENABLE_VERIFIER
1713                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1714                                 codegen_addpatchref(cd, PATCHER_athrow_areturn,
1715                                                                         iptr->sx.s23.s2.uc, 0);
1716
1717                                 if (opt_showdisassemble)
1718                                         M_NOP;
1719                         }
1720 #endif /* ENABLE_VERIFIER */
1721
1722                         disp = dseg_add_functionptr(cd, asm_handle_exception);
1723                         M_ALD(REG_ITMP2, REG_PV, disp);
1724                         M_MTCTR(REG_ITMP2);
1725
1726                         if (jd->isleafmethod) M_MFLR(REG_ITMP3);         /* save LR        */
1727                         M_BL(0);                                        /* get current PC */
1728                         M_MFLR(REG_ITMP2_XPC);
1729                         if (jd->isleafmethod) M_MTLR(REG_ITMP3);         /* restore LR     */
1730                         M_RTS;                                          /* jump to CTR    */
1731
1732                         ALIGNCODENOP;
1733                         break;
1734
1735                 case ICMD_GOTO:         /* ... ==> ...                                */
1736                 case ICMD_RET:          /* ... ==> ...                                */
1737
1738                         M_BR(0);
1739                         codegen_addreference(cd, iptr->dst.block);
1740                         ALIGNCODENOP;
1741                         break;
1742
1743                 case ICMD_JSR:          /* ... ==> ...                                */
1744
1745                         M_BR(0);
1746                         codegen_addreference(cd, iptr->sx.s23.s3.jsrtarget.block);
1747                         ALIGNCODENOP;
1748                         break;
1749
1750                 case ICMD_IFNULL:       /* ..., value ==> ...                         */
1751
1752                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1753                         M_TST(s1);
1754                         M_BEQ(0);
1755                         codegen_addreference(cd, iptr->dst.block);
1756                         break;
1757
1758                 case ICMD_IFNONNULL:    /* ..., value ==> ...                         */
1759
1760                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1761                         M_TST(s1);
1762                         M_BNE(0);
1763                         codegen_addreference(cd, iptr->dst.block);
1764                         break;
1765
1766                 case ICMD_IFLT:
1767                 case ICMD_IFLE:
1768                 case ICMD_IFNE:
1769                 case ICMD_IFGT:
1770                 case ICMD_IFGE:
1771                 case ICMD_IFEQ:         /* ..., value ==> ...                         */
1772
1773                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1774                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767))
1775                                 M_CMPI(s1, iptr->sx.val.i);
1776                         else {
1777                                 ICONST(REG_ITMP2, iptr->sx.val.i);
1778                                 M_CMP(s1, REG_ITMP2);
1779                         }
1780                         switch (iptr->opc) {
1781                         case ICMD_IFLT:
1782                                 M_BLT(0);
1783                                 break;
1784                         case ICMD_IFLE:
1785                                 M_BLE(0);
1786                                 break;
1787                         case ICMD_IFNE:
1788                                 M_BNE(0);
1789                                 break;
1790                         case ICMD_IFGT:
1791                                 M_BGT(0);
1792                                 break;
1793                         case ICMD_IFGE:
1794                                 M_BGE(0);
1795                                 break;
1796                         case ICMD_IFEQ:
1797                                 M_BEQ(0);
1798                                 break;
1799                         }
1800                         codegen_addreference(cd, iptr->dst.block);
1801                         break;
1802
1803                 case ICMD_IF_LEQ:       /* ..., value ==> ...                         */
1804                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1805                         LCONST(REG_ITMP2, iptr->sx.val.l);
1806                         M_CMP(s1, REG_ITMP2);
1807                         M_BEQ(0);
1808                         codegen_addreference(cd, iptr->dst.block);
1809                         break;
1810                 case ICMD_IF_LLT:       /* ..., value ==> ...                         */
1811                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1812                         LCONST(REG_ITMP2, iptr->sx.val.l);
1813                         M_CMP(s1, REG_ITMP2);
1814                         M_BLT(0);
1815                         codegen_addreference(cd, iptr->dst.block);
1816                         break;
1817                 case ICMD_IF_LLE:       /* ..., value ==> ...                         */
1818                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1819                         LCONST(REG_ITMP2, iptr->sx.val.l);
1820                         M_CMP(s1, REG_ITMP2);
1821                         M_BLE(0);
1822                         codegen_addreference(cd, iptr->dst.block);
1823                         break;
1824
1825                 case ICMD_IF_LNE:       /* ..., value ==> ... */
1826                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1827                         LCONST(REG_ITMP2, iptr->sx.val.l);
1828                         M_CMP(s1, REG_ITMP2);
1829                         M_BNE(0);
1830                         codegen_addreference(cd, iptr->dst.block);
1831                         break;
1832                 case ICMD_IF_LGE:       /* ..., value ==> ... */
1833                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1834                         LCONST(REG_ITMP2, iptr->sx.val.l);
1835                         M_CMP(s1, REG_ITMP2);
1836                         M_BGE(0);
1837                         codegen_addreference(cd, iptr->dst.block);
1838                         break;
1839                 case ICMD_IF_LGT:       /* ..., value ==> ...                         */
1840                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1841                         LCONST(REG_ITMP2, iptr->sx.val.l);
1842                         M_CMP(s1, REG_ITMP2);
1843                         M_BGT(0);
1844                         codegen_addreference(cd, iptr->dst.block);
1845                         break;
1846                 case ICMD_IF_ICMPEQ:    /* ..., value, value ==> ...                  */
1847                 case ICMD_IF_ACMPEQ:    /* op1 = target JavaVM pc                     */
1848                 case ICMD_IF_LCMPEQ:
1849
1850                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1851                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1852                         M_CMP(s1, s2);
1853                         M_BEQ(0);
1854                         codegen_addreference(cd, iptr->dst.block);
1855                         break;
1856
1857                 case ICMD_IF_ICMPNE:    /* ..., value, value ==> ...                  */
1858                 case ICMD_IF_ACMPNE:    /* op1 = target JavaVM pc                     */
1859                 case ICMD_IF_LCMPNE:
1860
1861                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1862                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1863                         M_CMP(s1, s2);
1864                         M_BNE(0);
1865                         codegen_addreference(cd, iptr->dst.block);
1866                         break;
1867
1868
1869                 case ICMD_IF_ICMPLT:    /* ..., value, value ==> ...                  */
1870                 case ICMD_IF_LCMPLT:
1871
1872                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1873                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1874                         M_CMP(s1, s2);
1875                         M_BLT(0);
1876                         codegen_addreference(cd, iptr->dst.block);
1877                         break;
1878
1879                 case ICMD_IF_ICMPGT:    /* ..., value, value ==> ...                  */
1880                 case ICMD_IF_LCMPGT:
1881
1882                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1883                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1884                         M_CMP(s1, s2);
1885                         M_BGT(0);
1886                         codegen_addreference(cd, iptr->dst.block);
1887                         break;
1888
1889                 case ICMD_IF_ICMPLE:    /* ..., value, value ==> ...                  */
1890                 case ICMD_IF_LCMPLE:
1891
1892                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1893                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1894                         M_CMP(s1, s2);
1895                         M_BLE(0);
1896                         codegen_addreference(cd, iptr->dst.block);
1897                         break;
1898
1899                 case ICMD_IF_ICMPGE:    /* ..., value, value ==> ...                  */
1900                 case ICMD_IF_LCMPGE:
1901
1902                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1903                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1904                         M_CMP(s1, s2);
1905                         M_BGE(0);
1906                         codegen_addreference(cd, iptr->dst.block);
1907                         break;
1908
1909
1910                 case ICMD_LRETURN:      /* ..., retvalue ==> ...                      */
1911                 case ICMD_IRETURN:      /* ..., retvalue ==> ...                      */
1912
1913                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
1914                         M_LNGMOVE(s1, REG_RESULT);
1915                         goto nowperformreturn;
1916
1917                 case ICMD_ARETURN:      /* ..., retvalue ==> ...                      */
1918
1919                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
1920                         M_LNGMOVE(s1, REG_RESULT);
1921
1922 #ifdef ENABLE_VERIFIER
1923                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1924                                 codegen_addpatchref(cd, PATCHER_athrow_areturn,
1925                                                                         iptr->sx.s23.s2.uc, 0);
1926
1927                                 if (opt_showdisassemble)
1928                                         M_NOP;
1929                         }
1930 #endif /* ENABLE_VERIFIER */
1931
1932                         goto nowperformreturn;
1933
1934                 case ICMD_FRETURN:      /* ..., retvalue ==> ...                      */
1935                 case ICMD_DRETURN:
1936
1937                         s1 = emit_load_s1(jd, iptr, REG_FRESULT);
1938                         M_FLTMOVE(s1, REG_FRESULT);
1939                         goto nowperformreturn;
1940
1941                 case ICMD_RETURN:      /* ...  ==> ...                                */
1942
1943 nowperformreturn:
1944                         {
1945                         s4 i, p;
1946
1947                         p = cd->stackframesize;
1948
1949                         /* call trace function */
1950
1951 #if !defined(NDEBUG)
1952                         if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
1953                                 emit_verbosecall_exit(jd);
1954                         }
1955 #endif
1956
1957 #if defined(ENABLE_THREADS)
1958                         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
1959                                 disp = dseg_add_functionptr(cd, LOCK_monitor_exit);
1960                                 M_ALD(REG_ITMP3, REG_PV, disp);
1961                                 M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
1962                                 M_MTCTR(REG_ITMP3);
1963
1964                                 /* we need to save the proper return value */
1965
1966                                 switch (iptr->opc) {
1967                                 case ICMD_LRETURN:
1968                                 case ICMD_IRETURN:
1969                                 case ICMD_ARETURN:
1970                                         /* fall through */
1971                                         M_LST(REG_RESULT , REG_SP, rd->memuse * 8 + 8);
1972                                         break;
1973                                 case ICMD_FRETURN:
1974                                         M_FST(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
1975                                         break;
1976                                 case ICMD_DRETURN:
1977                                         M_DST(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
1978                                         break;
1979                                 }
1980
1981                                 M_ALD(rd->argintregs[0], REG_SP, rd->memuse * 8);
1982                                 M_JSR;
1983
1984                                 /* and now restore the proper return value */
1985
1986                                 switch (iptr->opc) {
1987                                 case ICMD_LRETURN:
1988                                 case ICMD_IRETURN:
1989                                 case ICMD_ARETURN:
1990                                         /* fall through */
1991                                         M_LLD(REG_RESULT , REG_SP, rd->memuse * 8 + 8);
1992                                         break;
1993                                 case ICMD_FRETURN:
1994                                         M_FLD(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
1995                                         break;
1996                                 case ICMD_DRETURN:
1997                                         M_DLD(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
1998                                         break;
1999                                 }
2000                         }
2001 #endif
2002
2003                         /* restore return address                                         */
2004
2005                         if (!jd->isleafmethod) {
2006                                 /* ATTENTION: Don't use REG_ZERO (r0) here, as M_ALD
2007                                    may have a displacement overflow. */
2008
2009                                 M_ALD(REG_ITMP1, REG_SP, p * 8 + LA_LR_OFFSET);
2010                                 M_MTLR(REG_ITMP1);
2011                         }
2012
2013                         /* restore saved registers                                        */
2014
2015                         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
2016                                 p--; M_LLD(rd->savintregs[i], REG_SP, p * 8);
2017                         }
2018                         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
2019                                 p--; M_DLD(rd->savfltregs[i], REG_SP, p * 8);
2020                         }
2021
2022                         /* deallocate stack                                               */
2023
2024                         if (cd->stackframesize)
2025                                 M_LDA(REG_SP, REG_SP, cd->stackframesize * 8);
2026
2027                         M_RET;
2028                         ALIGNCODENOP;
2029                         }
2030                         break;
2031
2032
2033                 case ICMD_TABLESWITCH:  /* ..., index ==> ...                         */
2034                         {
2035                         s4 i, l;
2036                         branch_target_t *table;
2037
2038                         table = iptr->dst.table;
2039
2040                         l = iptr->sx.s23.s2.tablelow;
2041                         i = iptr->sx.s23.s3.tablehigh;
2042
2043                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2044                         if (l == 0) {
2045                                 M_INTMOVE(s1, REG_ITMP1);
2046                         } else if (l <= 32768) {
2047                                 M_LDA(REG_ITMP1, s1, -l);
2048                         } else {
2049                                 ICONST(REG_ITMP2, l);
2050                                 M_SUB(s1, REG_ITMP2, REG_ITMP1);
2051                         }
2052
2053                         /* number of targets */
2054                         i = i - l + 1;
2055
2056                         /* range check */
2057
2058                         M_CMPUI(REG_ITMP1, i - 1);
2059                         M_BGT(0);
2060                         codegen_addreference(cd, table[0].block);
2061
2062                         /* build jump table top down and use address of lowest entry */
2063
2064                         table += i;
2065
2066                         while (--i >= 0) {
2067                                 dseg_add_target(cd, table->block);
2068                                 --table;
2069                                 }
2070                         }
2071
2072                         /* length of dataseg after last dseg_add_unique_target is used by load */
2073
2074                         M_SLL_IMM(REG_ITMP1, 3, REG_ITMP1);
2075                         M_IADD(REG_ITMP1, REG_PV, REG_ITMP2);
2076                         M_ALD(REG_ITMP2, REG_ITMP2, -(cd->dseglen));
2077                         M_MTCTR(REG_ITMP2);
2078                         M_RTS;
2079                         ALIGNCODENOP;
2080                         break;
2081
2082
2083                 case ICMD_LOOKUPSWITCH: /* ..., key ==> ...                           */
2084                         {
2085                         s4 i, val;
2086                         lookup_target_t *lookup;
2087
2088                         lookup = iptr->dst.lookup;
2089
2090                         i = iptr->sx.s23.s2.lookupcount;
2091
2092                         MCODECHECK((i<<2)+8);
2093                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2094                         while (--i >= 0) {
2095                                 val = lookup->value;
2096                                 if ((val >= -32768) && (val <= 32767)) {
2097                                         M_CMPI(s1, val);
2098                                 } else {
2099                                         a = dseg_add_s4(cd, val);
2100                                         M_ILD(REG_ITMP2, REG_PV, a);
2101                                         M_CMP(s1, REG_ITMP2);
2102                                 }
2103                                 M_BEQ(0);
2104                                 codegen_addreference(cd, lookup->target.block);
2105                                 ++lookup;
2106                         }
2107
2108                         M_BR(0);
2109                         codegen_addreference(cd, iptr->sx.s23.s3.lookupdefault.block);
2110
2111                         ALIGNCODENOP;
2112                         break;
2113                         }
2114
2115
2116                 case ICMD_BUILTIN:      /* ..., [arg1, [arg2 ...]] ==> ...            */
2117
2118                         bte = iptr->sx.s23.s3.bte;
2119                         md = bte->md;
2120                         goto gen_method;
2121
2122                 case ICMD_INVOKESTATIC: /* ..., [arg1, [arg2 ...]] ==> ...            */
2123                 case ICMD_INVOKESPECIAL:/* ..., objectref, [arg1, [arg2 ...]] ==> ... */
2124                 case ICMD_INVOKEVIRTUAL:/* op1 = arg count, val.a = method pointer    */
2125                 case ICMD_INVOKEINTERFACE:
2126
2127                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2128                                 md = iptr->sx.s23.s3.um->methodref->parseddesc.md;
2129                                 lm = NULL;
2130                         }
2131                         else {
2132                                 lm = iptr->sx.s23.s3.fmiref->p.method;
2133                                 md = lm->parseddesc;
2134                         }
2135
2136 gen_method:
2137                         s3 = md->paramcount;
2138
2139                         MCODECHECK((s3 << 1) + 64);
2140
2141                         /* copy arguments to registers or stack location */
2142
2143                         for (s3 = s3 - 1; s3 >= 0; s3--) {
2144                                 var = VAR(iptr->sx.s23.s2.args[s3]);
2145
2146                                 if (var->flags & PREALLOC)
2147                                         continue;
2148
2149                                 if (IS_INT_LNG_TYPE(var->type)) {
2150                                         if (!md->params[s3].inmemory) {
2151                                                 s1 = rd->argintregs[md->params[s3].regoff];
2152                                                 d = emit_load(jd, iptr, var, s1);
2153                                                 M_LNGMOVE(d, s1);
2154                                         } else {
2155                                                 d = emit_load(jd, iptr, var, REG_ITMP1);
2156                                                 M_LST(d, REG_SP, md->params[s3].regoff * 8);
2157                                         }
2158                                 } else {
2159                                         if (!md->params[s3].inmemory) {
2160                                                 s1 = rd->argfltregs[md->params[s3].regoff];
2161                                                 d = emit_load(jd, iptr, var, s1);
2162                                                 M_FLTMOVE(d, s1);
2163                                         } else {
2164                                                 d = emit_load(jd, iptr, var, REG_FTMP1);
2165                                                 if (IS_2_WORD_TYPE(var->type))
2166                                                         M_DST(d, REG_SP, md->params[s3].regoff * 8);
2167                                                 else
2168                                                         M_DST(d, REG_SP, md->params[s3].regoff * 8);    /* F XXX */
2169                                         }
2170                                 }
2171                         } /* end of for */
2172
2173                         switch (iptr->opc) {
2174                         case ICMD_BUILTIN:
2175                                 disp = dseg_add_functionptr(cd, bte->fp);
2176                                 d = md->returntype.type;
2177
2178                                 M_ALD(REG_PV, REG_PV, disp);    /* pointer to built-in-function descriptor */
2179                                 M_ALD(REG_ITMP1, REG_PV, 0);    /* function entry point address, what about TOC */
2180                                 M_MTCTR(REG_ITMP1);
2181                                 M_JSR;
2182
2183                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2184                                 M_MFLR(REG_ITMP1);
2185                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2186
2187
2188                                 if (INSTRUCTION_MUST_CHECK(iptr)) {
2189                                         M_CMPI(REG_RESULT, 0);
2190                                         M_BEQ(0);
2191                                         codegen_add_fillinstacktrace_ref(cd);
2192                                 }
2193                                 break;
2194
2195                         case ICMD_INVOKESPECIAL:
2196                                 gen_nullptr_check(rd->argintregs[0]);
2197                                 M_ILD(REG_ITMP1, rd->argintregs[0], 0); /* hardware nullptr   */
2198                                 /* fall through */
2199
2200                         case ICMD_INVOKESTATIC:
2201                                 if (lm == NULL) {
2202                                         unresolved_method *um = iptr->sx.s23.s3.um;
2203
2204                                         disp = dseg_add_unique_address(cd, NULL);
2205
2206                                         codegen_addpatchref(cd, PATCHER_invokestatic_special,
2207                                                                                 um, disp);
2208
2209                                         if (opt_showdisassemble)
2210                                                 M_NOP;
2211
2212                                         d = md->returntype.type;
2213
2214                                 } else {
2215                                         disp = dseg_add_address(cd, lm->stubroutine);
2216                                         d = md->returntype.type;
2217                                 }
2218
2219                                 M_NOP;
2220                                 M_ALD(REG_PV, REG_PV, disp);
2221                                 M_MTCTR(REG_PV);
2222                                 M_JSR;
2223                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2224                                 M_MFLR(REG_ITMP1);
2225                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2226                                 break;
2227
2228                         case ICMD_INVOKEVIRTUAL:
2229                                 gen_nullptr_check(rd->argintregs[0]);
2230
2231                                 if (lm == NULL) {
2232                                         unresolved_method *um = iptr->sx.s23.s3.um;
2233
2234                                         codegen_addpatchref(cd, PATCHER_invokevirtual, um, 0);
2235
2236                                         if (opt_showdisassemble)
2237                                                 M_NOP;
2238
2239                                         s1 = 0;
2240                                         d = md->returntype.type;
2241
2242                                 } else {
2243                                         s1 = OFFSET(vftbl_t, table[0]) +
2244                                                 sizeof(methodptr) * lm->vftblindex;
2245                                         d = md->returntype.type;
2246                                 }
2247
2248                                 M_ALD(REG_METHODPTR, rd->argintregs[0],
2249                                           OFFSET(java_objectheader, vftbl));
2250                                 M_ALD(REG_PV, REG_METHODPTR, s1);
2251                                 M_MTCTR(REG_PV);
2252                                 M_JSR;
2253                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2254                                 M_MFLR(REG_ITMP1);
2255                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2256                                 break;
2257
2258                         case ICMD_INVOKEINTERFACE:
2259                                 gen_nullptr_check(rd->argintregs[0]);
2260
2261                                 if (lm == NULL) {
2262                                         unresolved_method *um = iptr->sx.s23.s3.um;
2263
2264                                         codegen_addpatchref(cd, PATCHER_invokeinterface, um, 0);
2265
2266                                         if (opt_showdisassemble)
2267                                                 M_NOP;
2268
2269                                         s1 = 0;
2270                                         s2 = 0;
2271                                         d = md->returntype.type;
2272
2273                                 } else {
2274                                         s1 = OFFSET(vftbl_t, interfacetable[0]) -
2275                                                 sizeof(methodptr*) * lm->class->index;
2276
2277                                         s2 = sizeof(methodptr) * (lm - lm->class->methods);
2278
2279                                         d = md->returntype.type;
2280                                 }
2281
2282                                 M_ALD(REG_METHODPTR, rd->argintregs[0],
2283                                           OFFSET(java_objectheader, vftbl));
2284                                 M_ALD(REG_METHODPTR, REG_METHODPTR, s1);
2285                                 M_ALD(REG_PV, REG_METHODPTR, s2);
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
2294                         /* d contains return type */
2295
2296                         if (d != TYPE_VOID) {
2297                                 if (IS_INT_LNG_TYPE(d)) {
2298                                         s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2299                                         M_MOV(REG_RESULT, s1);
2300                                 } else {
2301                                         s1 = codegen_reg_of_dst(jd, iptr, REG_FRESULT);
2302                                         M_FLTMOVE(REG_FRESULT, s1);
2303                                 }
2304                                 emit_store_dst(jd, iptr, s1);
2305                         }
2306                         break;
2307
2308
2309                 case ICMD_CHECKCAST:  /* ..., objectref ==> ..., objectref            */
2310                                       /* val.a: (classinfo*) superclass               */
2311
2312                         /*  superclass is an interface:
2313                          *
2314                          *  OK if ((sub == NULL) ||
2315                          *         (sub->vftbl->interfacetablelength > super->index) &&
2316                          *         (sub->vftbl->interfacetable[-super->index] != NULL));
2317                          *
2318                          *  superclass is a class:
2319                          *
2320                          *  OK if ((sub == NULL) || (0
2321                          *         <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2322                          *         super->vftbl->diffvall));
2323                          */
2324
2325                         if (!(iptr->flags.bits & INS_FLAG_ARRAY)) {
2326                                 /* object type cast-check */
2327
2328                                 classinfo *super;
2329                                 s4         superindex;
2330
2331                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2332                                         super = NULL;
2333                                         superindex = 0;
2334                                 } else {
2335                                         super = iptr->sx.s23.s3.c.cls;
2336                                         superindex = super->index;
2337                                 }
2338
2339 #if defined(ENABLE_THREADS)
2340                                 codegen_threadcritrestart(cd, cd->mcodeptr - cd->mcodebase);
2341 #endif
2342                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2343
2344                                 /* calculate interface checkcast code size */
2345
2346                                 s2 = 7;
2347                                 if (super == NULL)
2348                                         s2 += (opt_showdisassemble ? 1 : 0);
2349
2350                                 /* calculate class checkcast code size */
2351
2352                                 s3 = 9 + (s1 == REG_ITMP1);
2353                                 if (super == NULL)
2354                                         s3 += (opt_showdisassemble ? 1 : 0);
2355
2356                                 /* if class is not resolved, check which code to call */
2357
2358                                 if (super == NULL) {
2359                                         M_TST(s1);
2360                                         M_BEQ(3 + (opt_showdisassemble ? 1 : 0) + s2 + 1 + s3);
2361
2362                                         disp = dseg_add_s4(cd, 0);                     /* super->flags */
2363
2364                                         codegen_addpatchref(cd,
2365                                                                                 PATCHER_checkcast_instanceof_flags,
2366                                                                                 iptr->sx.s23.s3.c.ref,
2367                                                                                 disp);
2368
2369                                         if (opt_showdisassemble)
2370                                                 M_NOP;
2371
2372                                         M_ILD(REG_ITMP2, REG_PV, disp);
2373                                         M_AND_IMM(REG_ITMP2, ACC_INTERFACE, REG_ITMP2);
2374                                         M_BEQ(s2 + 1);
2375                                 }
2376
2377                                 /* interface checkcast code */
2378
2379                                 if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2380                                         if (super == NULL) {
2381                                                 codegen_addpatchref(cd,
2382                                                                                         PATCHER_checkcast_instanceof_interface,
2383                                                                                         iptr->sx.s23.s3.c.ref,
2384                                                                                         0);
2385                                                 if (opt_showdisassemble)
2386                                                         M_NOP;
2387
2388                                         } else {
2389                                                 M_TST(s1);
2390                                                 M_BEQ(s2);
2391                                         }
2392
2393                                         M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2394                                         M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, interfacetablelength));
2395                                         M_LDATST(REG_ITMP3, REG_ITMP3, -superindex);
2396                                         M_BLE(0);
2397                                         codegen_add_classcastexception_ref(cd, s1);     /*XXX s1?? */
2398                                         M_ALD(REG_ITMP3, REG_ITMP2,
2399                                                   OFFSET(vftbl_t, interfacetable[0]) -
2400                                                   superindex * sizeof(methodptr*));
2401                                         M_TST(REG_ITMP3);
2402                                         M_BEQ(0);
2403                                         codegen_add_classcastexception_ref(cd, s1);     /*XXX s1??*/
2404
2405                                         if (!super)
2406                                                 M_BR(s3);
2407                                 }
2408
2409                                 /* class checkcast code */
2410
2411                                 if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2412                                         if (super == NULL) {
2413                                                 disp = dseg_add_address(cd, NULL);
2414                                                 codegen_addpatchref(cd, PATCHER_checkcast_class,
2415                                                                                         iptr->sx.s23.s3.c.ref,
2416                                                                                         disp);
2417                                                 if (opt_showdisassemble)
2418                                                         M_NOP;
2419                                         } else {
2420                                                 disp = dseg_add_address(cd, super->vftbl);
2421                                                 M_TST(s1);
2422                                                 M_BEQ(s3);
2423                                         }
2424
2425                                         M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2426 #if defined(ENABLE_THREADS)
2427                                         codegen_threadcritstart(cd, cd->mcodeptr - cd->mcodebase);
2428 #endif
2429                                         M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2430                                         M_ALD(REG_ITMP2, REG_PV, disp);
2431                                         if (s1 != REG_ITMP1) {
2432                                                 M_ILD(REG_ITMP1, REG_ITMP2, OFFSET(vftbl_t, baseval));
2433                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2434 #if defined(ENABLE_THREADS)
2435                                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2436 #endif
2437                                                 M_SUB(REG_ITMP3, REG_ITMP1, REG_ITMP3);
2438                                                 M_EXTSW(REG_ITMP3, REG_ITMP3);
2439                                         } else {
2440                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, baseval));
2441                                                 M_SUB(REG_ITMP3, REG_ITMP2, REG_ITMP3);
2442                                                 M_EXTSW(REG_ITMP3, REG_ITMP3);
2443                                                 M_ALD(REG_ITMP2, REG_PV, disp);
2444                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2445 #if defined(ENABLE_THREADS)
2446                                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2447 #endif
2448                                         }
2449                                         M_CMPU(REG_ITMP3, REG_ITMP2);
2450                                         M_BGT(0);
2451                                         codegen_add_classcastexception_ref(cd, s1); /* XXX s1? */
2452                                 }
2453                                 d = codegen_reg_of_dst(jd, iptr, s1);
2454
2455                         } else {
2456                                 /* array type cast-check */
2457
2458                                 s1 = emit_load_s1(jd, iptr, rd->argintregs[0]);
2459                                 M_INTMOVE(s1, rd->argintregs[0]);
2460
2461
2462                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2463                                         disp = dseg_add_address(cd, NULL);
2464                                         codegen_addpatchref(cd, PATCHER_builtin_arraycheckcast,
2465                                                                                 iptr->sx.s23.s3.c.ref,
2466                                                                                 disp);
2467
2468                                         if (opt_showdisassemble)
2469                                                 M_NOP;
2470                                 } else {
2471                                         disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2472                                 }
2473
2474                                 M_ALD(rd->argintregs[1], REG_PV, disp);
2475                                 disp = dseg_add_functionptr(cd, BUILTIN_arraycheckcast);
2476                                 M_ALD(REG_ITMP2, REG_PV, disp);
2477                                 M_ALD(REG_ITMP2, REG_ITMP2, 0); /* TOC */
2478                                 M_MTCTR(REG_ITMP2);
2479                                 M_JSR;
2480                                 M_TST(REG_RESULT);
2481                                 M_BEQ(0);
2482                                 codegen_add_classcastexception_ref(cd, s1); /* XXX s1? */
2483
2484                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2485                                 d = codegen_reg_of_dst(jd, iptr, s1);
2486                         }
2487                         M_INTMOVE(s1, d);
2488                         emit_store_dst(jd, iptr, d);
2489                         break;
2490
2491                 case ICMD_INSTANCEOF: /* ..., objectref ==> ..., intresult            */
2492                                       /* val.a: (classinfo*) superclass               */
2493
2494                         /*  superclass is an interface:
2495                          *
2496                          *  return (sub != NULL) &&
2497                          *         (sub->vftbl->interfacetablelength > super->index) &&
2498                          *         (sub->vftbl->interfacetable[-super->index] != NULL);
2499                          *
2500                          *  superclass is a class:
2501                          *
2502                          *  return ((sub != NULL) && (0
2503                          *          <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2504                          *          super->vftbl->diffvall));
2505                          */
2506
2507                         {
2508                         classinfo *super;
2509                         vftbl_t   *supervftbl;
2510                         s4         superindex;
2511
2512                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2513                                 super = NULL;
2514                                 superindex = 0;
2515                                 supervftbl = NULL;
2516                         }
2517                         else {
2518                                 super = iptr->sx.s23.s3.c.cls;
2519                                 superindex = super->index;
2520                                 supervftbl = super->vftbl;
2521                         }
2522
2523 #if defined(ENABLE_THREADS)
2524             codegen_threadcritrestart(cd, cd->mcodeptr - cd->mcodebase);
2525 #endif
2526                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2527                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
2528                         if (s1 == d) {
2529                                 M_MOV(s1, REG_ITMP1);
2530                                 s1 = REG_ITMP1;
2531                         }
2532
2533                         /* calculate interface instanceof code size */
2534
2535                         s2 = 8;
2536                         if (!super)
2537                                 s2 += (opt_showdisassemble ? 1 : 0);
2538
2539                         /* calculate class instanceof code size */
2540
2541                         s3 = 10;
2542                         if (!super)
2543                                 s3 += (opt_showdisassemble ? 1 : 0);
2544
2545                         M_CLR(d);
2546
2547                         /* if class is not resolved, check which code to call */
2548
2549                         if (!super) {
2550                                 M_TST(s1);
2551                                 M_BEQ(3 + (opt_showdisassemble ? 1 : 0) + s2 + 1 + s3);
2552
2553                                 disp = dseg_add_unique_s4(cd, 0);                     /* super->flags */
2554
2555                                 codegen_addpatchref(cd, PATCHER_checkcast_instanceof_flags,
2556                                                                         iptr->sx.s23.s3.c.ref, disp);
2557
2558                                 if (opt_showdisassemble)
2559                                         M_NOP;
2560
2561                                 M_ILD(REG_ITMP3, REG_PV, disp);
2562                                 M_AND_IMM(REG_ITMP3, ACC_INTERFACE, REG_ITMP3);
2563                                 M_BEQ(s2 + 1);
2564                         }
2565
2566                         /* interface instanceof code */
2567
2568                         if (!super || (super->flags & ACC_INTERFACE)) {
2569                                 if (super) {
2570                                         M_TST(s1);
2571                                         M_BEQ(s2);
2572
2573                                 } else {
2574                                         codegen_addpatchref(cd,
2575                                                                                 PATCHER_checkcast_instanceof_interface,
2576                                                                                 iptr->sx.s23.s3.c.ref, 0);
2577
2578                                         if (opt_showdisassemble)
2579                                                 M_NOP;
2580                                 }
2581
2582                                 M_ALD(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
2583                                 M_ILD(REG_ITMP3, REG_ITMP1, OFFSET(vftbl_t, interfacetablelength));
2584                                 M_LDATST(REG_ITMP3, REG_ITMP3, -superindex);
2585                                 M_BLE(4);
2586                                 M_ALD(REG_ITMP1, REG_ITMP1,
2587                                           OFFSET(vftbl_t, interfacetable[0]) -
2588                                           superindex * sizeof(methodptr*));
2589                                 M_TST(REG_ITMP1);
2590                                 M_BEQ(1);
2591                                 M_IADD_IMM(REG_ZERO, 1, d);
2592
2593                                 if (!super)
2594                                         M_BR(s3);
2595                         }
2596
2597                         /* class instanceof code */
2598
2599                         if (!super || !(super->flags & ACC_INTERFACE)) {
2600                                 disp = dseg_add_address(cd, supervftbl);
2601
2602                                 if (super) {
2603                                         M_TST(s1);
2604                                         M_BEQ(s3);
2605
2606                                 } else {
2607                                         codegen_addpatchref(cd, PATCHER_instanceof_class,
2608                                                                                 iptr->sx.s23.s3.c.ref,
2609                                                                                 disp);
2610
2611                                         if (opt_showdisassemble) {
2612                                                 M_NOP;
2613                                         }
2614                                 }
2615
2616                                 M_ALD(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
2617                                 M_ALD(REG_ITMP2, REG_PV, disp);
2618 #if defined(ENABLE_THREADS)
2619                                 codegen_threadcritstart(cd, cd->mcodeptr - cd->mcodebase);
2620 #endif
2621                                 M_ILD(REG_ITMP1, REG_ITMP1, OFFSET(vftbl_t, baseval));
2622                                 M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2623                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2624 #if defined(ENABLE_THREADS)
2625                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2626 #endif
2627                                 M_SUB(REG_ITMP1, REG_ITMP3, REG_ITMP1);
2628                                 M_CMPU(REG_ITMP1, REG_ITMP2);
2629                                 M_CLR(d);
2630                                 M_BGT(1);
2631                                 M_IADD_IMM(REG_ZERO, 1, d);
2632                         }
2633                         emit_store_dst(jd, iptr, d);
2634                         }
2635                         break;
2636
2637                 case ICMD_MULTIANEWARRAY:/* ..., cnt1, [cnt2, ...] ==> ..., arrayref  */
2638
2639                         /* check for negative sizes and copy sizes to stack if necessary  */
2640
2641                         MCODECHECK((iptr->s1.argcount << 1) + 64);
2642
2643                         for (s1 = iptr->s1.argcount; --s1 >= 0; ) {
2644
2645                                 var = VAR(iptr->sx.s23.s2.args[s1]);
2646
2647                                 /* copy SAVEDVAR sizes to stack */
2648
2649                                 if (!(var->flags & PREALLOC)) {
2650                                         s2 = emit_load(jd, iptr, var, REG_ITMP1);
2651 #if defined(__DARWIN__)
2652                                         M_LST(s2, REG_SP, LA_SIZE + (s1 + INT_ARG_CNT) * 8);
2653 #else
2654                                         M_LST(s2, REG_SP, LA_SIZE + (s1 + 3) * 8);
2655 #endif
2656                                 }
2657                         }
2658
2659                         /* a0 = dimension count */
2660
2661                         ICONST(rd->argintregs[0], iptr->s1.argcount);
2662
2663                         /* is patcher function set? */
2664
2665                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2666                                 disp = dseg_add_address(cd, NULL);
2667
2668                                 codegen_addpatchref(cd, PATCHER_builtin_multianewarray,
2669                                                                         iptr->sx.s23.s3.c.ref, disp);
2670
2671                                 if (opt_showdisassemble)
2672                                         M_NOP;
2673
2674                         } else {
2675                                 disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2676                         }
2677
2678                         /* a1 = arraydescriptor */
2679
2680                         M_ALD(rd->argintregs[1], REG_PV, disp);
2681
2682                         /* a2 = pointer to dimensions = stack pointer */
2683
2684 #if defined(__DARWIN__)
2685                         M_LDA(rd->argintregs[2], REG_SP, LA_SIZE + INT_ARG_CNT * 8);
2686 #else
2687                         M_LDA(rd->argintregs[2], REG_SP, LA_SIZE + 3 * 8);
2688 #endif
2689
2690                         disp = dseg_add_functionptr(cd, BUILTIN_multianewarray);
2691                         M_ALD(REG_ITMP3, REG_PV, disp);
2692                         M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
2693                         M_MTCTR(REG_ITMP3);
2694                         M_JSR;
2695
2696                         /* check for exception before result assignment */
2697
2698                         M_CMPI(REG_RESULT, 0);
2699                         M_BEQ(0);
2700                         codegen_add_fillinstacktrace_ref(cd);
2701
2702                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2703                         M_INTMOVE(REG_RESULT, d);
2704                         emit_store_dst(jd, iptr, d);
2705                         break;
2706
2707                 default:
2708                         *exceptionptr =
2709                                 new_internalerror("Unknown ICMD %d during code generation",
2710                                                                   iptr->opc);
2711                         return false;
2712         } /* switch */
2713
2714         } /* for instruction */
2715
2716         } /* if (bptr -> flags >= BBREACHED) */
2717         } /* for basic block */
2718
2719         dseg_createlinenumbertable(cd);
2720
2721
2722         /* generate exception and patcher stubs */
2723
2724         {
2725                 exceptionref *eref;
2726                 patchref     *pref;
2727                 u4            mcode;
2728                 u1           *savedmcodeptr;
2729                 u1           *tmpmcodeptr;
2730
2731                 savedmcodeptr = NULL;
2732
2733                 /* generate exception stubs */
2734
2735                 for (eref = cd->exceptionrefs; eref != NULL; eref = eref->next) {
2736                         md_codegen_patch_branch(cd, eref->branchpos, cd->mcodeptr - cd->mcodebase);
2737
2738                         MCODECHECK(100);
2739
2740                         /* Check if the exception is an
2741                            ArrayIndexOutOfBoundsException.  If so, move index register
2742                            into REG_ITMP1. */
2743
2744                         if (eref->reg != -1)
2745                                 M_MOV(eref->reg, REG_ITMP1);
2746
2747                         /* calcuate exception address */
2748
2749                         M_LDA(REG_ITMP2_XPC, REG_PV, eref->branchpos - 4);
2750
2751                         /* move function to call into REG_ITMP3 */
2752
2753                         disp = dseg_add_functionptr(cd, eref->function);
2754                         M_ALD(REG_ITMP3, REG_PV, disp);
2755                         M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
2756
2757                         if (savedmcodeptr != NULL) {
2758                                 disp = ((u4 *) savedmcodeptr) - (((u4 *) cd->mcodeptr) + 1);
2759                                 M_BR(disp);
2760
2761                         } else {
2762                                 savedmcodeptr = cd->mcodeptr;
2763
2764                                 if (jd->isleafmethod) {
2765                                         M_MFLR(REG_ZERO);
2766                                         M_AST(REG_ZERO, REG_SP, cd->stackframesize * 8 + LA_LR_OFFSET);
2767                                 }
2768
2769                                 M_MOV(REG_PV, rd->argintregs[0]);
2770                                 M_MOV(REG_SP, rd->argintregs[1]);
2771
2772                                 if (jd->isleafmethod)
2773                                         M_MOV(REG_ZERO, rd->argintregs[2]);
2774                                 else
2775                                         M_ALD(rd->argintregs[2],
2776                                                   REG_SP, cd->stackframesize * 8 + LA_LR_OFFSET);
2777
2778                                 M_MOV(REG_ITMP2_XPC, rd->argintregs[3]);
2779                                 M_MOV(REG_ITMP1, rd->argintregs[4]);
2780
2781                                 M_STDU(REG_SP, REG_SP, -(LA_SIZE + 6 * 8));
2782                                 M_AST(REG_ITMP2_XPC, REG_SP, LA_SIZE + 5 * 8);
2783
2784                                 M_MTCTR(REG_ITMP3);
2785                                 M_JSR;
2786                                 M_MOV(REG_RESULT, REG_ITMP1_XPTR);
2787
2788                                 M_ALD(REG_ITMP2_XPC, REG_SP, LA_SIZE + 5 * 8);
2789                                 M_LADD_IMM(REG_SP, LA_SIZE + 6 * 8, REG_SP);
2790
2791                                 if (jd->isleafmethod) {
2792                                         /* XXX FIXME: REG_ZERO can cause problems here! */
2793                                         assert(cd->stackframesize * 8 <= 32767);
2794
2795                                         M_ALD(REG_ZERO, REG_SP, cd->stackframesize * 8 + LA_LR_OFFSET);
2796                                         M_MTLR(REG_ZERO);
2797                                 }
2798
2799                                 disp = dseg_add_functionptr(cd, asm_handle_exception);
2800                                 M_ALD(REG_ITMP3, REG_PV, disp);
2801                                 M_MTCTR(REG_ITMP3);
2802                                 M_RTS;
2803                         }
2804                 }
2805
2806
2807                 /* generate code patching stub call code */
2808
2809                 for (pref = cd->patchrefs; pref != NULL; pref = pref->next) {
2810                         /* check code segment size */
2811
2812                         MCODECHECK(16);
2813
2814                         /* Get machine code which is patched back in later. The
2815                            call is 1 instruction word long. */
2816
2817                         tmpmcodeptr = (u1 *) (cd->mcodebase + pref->branchpos);
2818
2819                         mcode = *((u4 *) tmpmcodeptr);
2820
2821                         /* Patch in the call to call the following code (done at
2822                            compile time). */
2823
2824                         savedmcodeptr = cd->mcodeptr;   /* save current mcodeptr          */
2825                         cd->mcodeptr  = tmpmcodeptr;    /* set mcodeptr to patch position */
2826
2827                         disp = ((u4 *) savedmcodeptr) - (((u4 *) tmpmcodeptr) + 1);
2828                         M_BR(disp);
2829
2830                         cd->mcodeptr = savedmcodeptr;   /* restore the current mcodeptr   */
2831
2832                         /* create stack frame - keep stack 16-byte aligned */
2833
2834                         M_AADD_IMM(REG_SP, -8 * 8, REG_SP);
2835
2836                         /* calculate return address and move it onto the stack */
2837
2838                         M_LDA(REG_ITMP3, REG_PV, pref->branchpos);
2839                         M_AST_INTERN(REG_ITMP3, REG_SP, 5 * 8);
2840
2841                         /* move pointer to java_objectheader onto stack */
2842
2843 #if defined(ENABLE_THREADS)
2844                         /* order reversed because of data segment layout */
2845
2846                         (void) dseg_add_unique_address(cd, NULL);                         /* flcword    */
2847                         (void) dseg_add_unique_address(cd, lock_get_initial_lock_word()); /* monitorPtr */
2848                         disp = dseg_add_unique_address(cd, NULL);                         /* vftbl      */
2849
2850                         M_LDA(REG_ITMP3, REG_PV, disp);
2851                         M_AST_INTERN(REG_ITMP3, REG_SP, 4 * 8);
2852 #else
2853                         /* do nothing */
2854 #endif
2855
2856                         /* move machine code onto stack */
2857
2858                         disp = dseg_add_unique_s4(cd, mcode);
2859                         M_ILD(REG_ITMP3, REG_PV, disp);
2860                         M_IST_INTERN(REG_ITMP3, REG_SP, 3 * 8);
2861
2862                         /* move class/method/field reference onto stack */
2863
2864                         disp = dseg_add_unique_address(cd, pref->ref);
2865                         M_ALD(REG_ITMP3, REG_PV, disp);
2866                         M_AST_INTERN(REG_ITMP3, REG_SP, 2 * 8);
2867
2868                         /* move data segment displacement onto stack */
2869
2870                         disp = dseg_add_functionptr(cd, pref->disp);
2871                         M_LLD(REG_ITMP3, REG_PV, disp);
2872                         M_IST_INTERN(REG_ITMP3, REG_SP, 1 * 8);
2873
2874                         /* move patcher function pointer onto stack */
2875
2876                         disp = dseg_add_functionptr(cd, pref->patcher);
2877                         M_ALD(REG_ITMP3, REG_PV, disp);
2878                         M_AST_INTERN(REG_ITMP3, REG_SP, 0 * 8);
2879
2880                         disp = dseg_add_functionptr(cd, asm_patcher_wrapper);
2881                         M_ALD(REG_ITMP3, REG_PV, disp);
2882                         M_MTCTR(REG_ITMP3);
2883                         M_RTS;
2884                 }
2885
2886                 /* generate replacement-out stubs */
2887
2888 #if 0
2889                 {
2890                         int i;
2891
2892                         replacementpoint = jd->code->rplpoints;
2893
2894                         for (i = 0; i < jd->code->rplpointcount; ++i, ++replacementpoint) {
2895                                 /* check code segment size */
2896
2897                                 MCODECHECK(100);
2898
2899                                 /* note start of stub code */
2900
2901                                 replacementpoint->outcode = (u1 *) (cd->mcodeptr - cd->mcodebase);
2902
2903                                 /* make machine code for patching */
2904
2905                                 tmpmcodeptr  = cd->mcodeptr;
2906                                 cd->mcodeptr = (u1 *) &(replacementpoint->mcode) + 1 /* big-endian */;
2907
2908                                 disp = (ptrint)((s4*)replacementpoint->outcode - (s4*)replacementpoint->pc) - 1;
2909                                 M_BR(disp);
2910
2911                                 cd->mcodeptr = tmpmcodeptr;
2912
2913                                 /* create stack frame - keep 16-byte aligned */
2914
2915                                 M_AADD_IMM(REG_SP, -4 * 4, REG_SP);
2916
2917                                 /* push address of `rplpoint` struct */
2918
2919                                 disp = dseg_add_unique_address(cd, replacementpoint);
2920                                 M_ALD(REG_ITMP3, REG_PV, disp);
2921                                 M_AST_INTERN(REG_ITMP3, REG_SP, 0 * 4);
2922
2923                                 /* jump to replacement function */
2924
2925                                 disp = dseg_add_unique_address(cd, asm_replacement_out);
2926                                 M_ALD(REG_ITMP3, REG_PV, disp);
2927                                 M_MTCTR(REG_ITMP3);
2928                                 M_RTS;
2929                         }
2930                 }
2931 #endif
2932         }
2933
2934         codegen_finish(jd);
2935
2936         /* everything's ok */
2937
2938         return true;
2939 }
2940
2941
2942 /* createcompilerstub **********************************************************
2943
2944    Creates a stub routine which calls the compiler.
2945
2946 *******************************************************************************/
2947
2948 #define COMPILERSTUB_DATASIZE    3 * SIZEOF_VOID_P
2949 #define COMPILERSTUB_CODESIZE    4 * 4
2950
2951 #define COMPILERSTUB_SIZE        COMPILERSTUB_DATASIZE + COMPILERSTUB_CODESIZE
2952
2953
2954 u1 *createcompilerstub(methodinfo *m)
2955 {
2956         u1          *s;                     /* memory to hold the stub            */
2957         ptrint      *d;
2958         codeinfo    *code;
2959         codegendata *cd;
2960         s4           dumpsize;
2961
2962         s = CNEW(u1, COMPILERSTUB_SIZE);
2963
2964         /* set data pointer and code pointer */
2965
2966         d = (ptrint *) s;
2967         s = s + COMPILERSTUB_DATASIZE;
2968
2969         /* mark start of dump memory area */
2970
2971         dumpsize = dump_size();
2972
2973         cd = DNEW(codegendata);
2974         cd->mcodeptr = s;
2975
2976         /* Store the codeinfo pointer in the same place as in the
2977            methodheader for compiled methods. */
2978
2979         code = code_codeinfo_new(m);
2980
2981         d[0] = (ptrint) asm_call_jit_compiler;
2982         d[1] = (ptrint) m;
2983         d[2] = (ptrint) code;
2984
2985         M_ALD_INTERN(REG_ITMP1, REG_PV, -2 * SIZEOF_VOID_P);
2986         M_ALD_INTERN(REG_PV, REG_PV, -3 * SIZEOF_VOID_P);
2987         M_MTCTR(REG_PV);
2988         M_RTS;
2989
2990         md_cacheflush((u1 *) d, COMPILERSTUB_SIZE);
2991
2992 #if defined(ENABLE_STATISTICS)
2993         if (opt_stat)
2994                 count_cstub_len += COMPILERSTUB_SIZE;
2995 #endif
2996
2997         /* release dump area */
2998
2999         dump_release(dumpsize);
3000
3001         return s;
3002 }
3003
3004
3005 /* createnativestub ************************************************************
3006
3007    Creates a stub routine which calls a native method.
3008
3009 *******************************************************************************/
3010
3011 u1 *createnativestub(functionptr f, jitdata *jd, methoddesc *nmd)
3012 {
3013         methodinfo   *m;
3014         codeinfo     *code;
3015         codegendata  *cd;
3016         registerdata *rd;
3017         methoddesc   *md;
3018         s4            nativeparams;
3019         s4            i, j;                 /* count variables                    */
3020         s4            t;
3021         s4            s1, s2, disp;
3022         s4            funcdisp;
3023
3024         /* get required compiler data */
3025
3026         m    = jd->m;
3027         code = jd->code;
3028         cd   = jd->cd;
3029         rd   = jd->rd;
3030
3031         /* set some variables */
3032
3033         md = m->parseddesc;
3034         nativeparams = (m->flags & ACC_STATIC) ? 2 : 1;
3035
3036         /* calculate stackframe size */
3037
3038         cd->stackframesize =
3039                 sizeof(stackframeinfo) / SIZEOF_VOID_P +
3040                 sizeof(localref_table) / SIZEOF_VOID_P +
3041                 4 +                            /* 4 stackframeinfo arguments (darwin)*/
3042                 nmd->paramcount  +
3043                 nmd->memuse;
3044
3045 /*      cd->stackframesize = (cd->stackframesize + 3) & ~3;*/ /* keep stack 16-byte aligned */
3046
3047         /* create method header */
3048
3049         (void) dseg_add_unique_address(cd, code);                      /* CodeinfoPointer */
3050         (void) dseg_add_unique_s4(cd, cd->stackframesize * 8);             /* FrameSize       */
3051         (void) dseg_add_unique_s4(cd, 0);                              /* IsSync          */
3052         (void) dseg_add_unique_s4(cd, 0);                              /* IsLeaf          */
3053         (void) dseg_add_unique_s4(cd, 0);                              /* IntSave         */
3054         (void) dseg_add_unique_s4(cd, 0);                              /* FltSave         */
3055         (void) dseg_addlinenumbertablesize(cd);
3056         (void) dseg_add_unique_s4(cd, 0);                              /* ExTableSize     */
3057
3058         /* generate code */
3059
3060         M_MFLR(REG_ZERO);
3061         M_AST_INTERN(REG_ZERO, REG_SP, LA_LR_OFFSET);
3062         M_STDU(REG_SP, REG_SP, -(cd->stackframesize * 8));
3063
3064 #if !defined(NDEBUG)
3065         if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
3066                 emit_verbosecall_enter(jd);
3067         }
3068 #endif
3069         /* get function address (this must happen before the stackframeinfo) */
3070
3071         funcdisp = dseg_add_functionptr(cd, f);
3072
3073 #if !defined(WITH_STATIC_CLASSPATH)
3074         if (f == NULL) {
3075                 codegen_addpatchref(cd, PATCHER_resolve_native, m, funcdisp);
3076
3077                 if (opt_showdisassemble)
3078                         M_NOP;
3079         }
3080 #endif
3081
3082         /* save integer and float argument registers */
3083
3084         j = 0;
3085
3086         for (i = 0; i < md->paramcount; i++) {
3087                 t = md->paramtypes[i].type;
3088
3089                 if (IS_INT_LNG_TYPE(t)) {
3090                         if (!md->params[i].inmemory) {
3091                                 s1 = md->params[i].regoff;
3092                                 M_LST(rd->argintregs[s1], REG_SP, LA_SIZE + PA_SIZE + 4*8 + j * 8);
3093                                 j++;
3094                         }
3095                 }
3096         }
3097
3098         for (i = 0; i < md->paramcount; i++) {
3099                 if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
3100                         if (!md->params[i].inmemory) {
3101                                 s1 = md->params[i].regoff;
3102                                 M_DST(rd->argfltregs[s1], REG_SP, LA_SIZE + PA_SIZE + 4*8 + j * 8);
3103                                 j++;
3104                         }
3105                 }
3106         }
3107
3108         /* create native stack info */
3109
3110         M_AADD_IMM(REG_SP, cd->stackframesize * 8, rd->argintregs[0]);
3111         M_MOV(REG_PV, rd->argintregs[1]);
3112         M_AADD_IMM(REG_SP, cd->stackframesize * 8, rd->argintregs[2]);
3113         M_ALD(rd->argintregs[3], REG_SP, cd->stackframesize * 8 + LA_LR_OFFSET);
3114         disp = dseg_add_functionptr(cd, codegen_start_native_call);
3115
3116         M_ALD(REG_ITMP1, REG_PV, disp);
3117         M_ALD(REG_ITMP1, REG_ITMP1, 0);         /* TOC */
3118         M_MTCTR(REG_ITMP1);
3119         M_JSR;
3120
3121         /* restore integer and float argument registers */
3122
3123         j = 0;
3124
3125         for (i = 0; i < md->paramcount; i++) {
3126                 t = md->paramtypes[i].type;
3127
3128                 if (IS_INT_LNG_TYPE(t)) {
3129                         if (!md->params[i].inmemory) {
3130                                 s1 = md->params[i].regoff;
3131                                 M_LLD(rd->argintregs[s1], REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + j * 8);
3132                                 j++;
3133                         }
3134                 }
3135         }
3136
3137         for (i = 0; i < md->paramcount; i++) {
3138                 if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
3139                         if (!md->params[i].inmemory) {
3140                                 s1 = md->params[i].regoff;
3141                                 M_DLD(rd->argfltregs[s1], REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + j * 8);
3142                                 j++;
3143                         }
3144                 }
3145         }
3146
3147         /* copy or spill arguments to new locations */
3148
3149         for (i = md->paramcount - 1, j = i + nativeparams; i >= 0; i--, j--) {
3150                 t = md->paramtypes[i].type;
3151
3152                 if (IS_INT_LNG_TYPE(t)) {
3153                         if (!md->params[i].inmemory) {
3154                                 s1 = rd->argintregs[md->params[i].regoff];
3155
3156                                 if (!nmd->params[j].inmemory) {
3157                                         s2 = rd->argintregs[nmd->params[j].regoff];
3158                                         M_INTMOVE(s1, s2);
3159                                 } else {
3160                                         s2 = nmd->params[j].regoff;
3161                                         M_LST(s1, REG_SP, s2 * 8);
3162                                 }
3163
3164                         } else {
3165                                 s1 = md->params[i].regoff + cd->stackframesize;
3166                                 s2 = nmd->params[j].regoff;
3167
3168                                 M_LLD(REG_ITMP1, REG_SP, s1 * 8);
3169                                 M_LST(REG_ITMP1, REG_SP, s2 * 8);
3170                         }
3171
3172                 } else {
3173                         /* We only copy spilled float arguments, as the float
3174                            argument registers keep unchanged. */
3175
3176                         if (md->params[i].inmemory) {
3177                                 s1 = md->params[i].regoff + cd->stackframesize;
3178                                 s2 = nmd->params[j].regoff;
3179
3180                                 M_DLD(REG_FTMP1, REG_SP, s1 * 8);
3181
3182                                 if (IS_2_WORD_TYPE(t)) {
3183                                         M_DST(REG_FTMP1, REG_SP, s2 * 8);
3184                                 } else {
3185                                         M_FST(REG_FTMP1, REG_SP, s2 * 8 + 4);
3186                                 }
3187                         }
3188                 }
3189         }
3190
3191         /* put class into second argument register */
3192
3193         if (m->flags & ACC_STATIC) {
3194                 disp = dseg_add_unique_address(cd, m->class);
3195                 M_ALD(rd->argintregs[1], REG_PV, disp);
3196         }
3197
3198         /* put env into first argument register */
3199
3200         disp = dseg_add_unique_address(cd, _Jv_env);
3201         M_ALD(rd->argintregs[0], REG_PV, disp);
3202
3203         /* generate the actual native call */
3204         /* native functions have a different TOC for sure */
3205
3206         M_AST(REG_TOC, REG_SP, 40);     /* save old TOC */
3207         M_ALD(REG_ITMP3, REG_PV, funcdisp);
3208         M_ALD(REG_TOC, REG_ITMP3, 8);   /* load TOC from func. descriptor */
3209         M_ALD(REG_ITMP3, REG_ITMP3, 0);
3210         M_MTCTR(REG_ITMP3);
3211         M_JSR;
3212         M_ALD(REG_TOC, REG_SP, 40);     /* restore TOC */
3213
3214         /* save return value */
3215
3216         if (md->returntype.type != TYPE_VOID) {
3217                 if (IS_INT_LNG_TYPE(md->returntype.type)) {
3218                         M_LST(REG_RESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
3219                 }
3220                 else {
3221 /*                      if (IS_2_WORD_TYPE(md->returntype.type)) */
3222                                 M_DST(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
3223 /*                      else
3224                                 M_FST(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);  */ /* FIXME, needed F XXX?*/
3225
3226                 }
3227         }
3228
3229         /* print call trace */
3230 #if ! defined(NDEBGUU)
3231         if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
3232                 emit_verbosecall_exit(jd);
3233         }
3234 #endif
3235         /* remove native stackframe info */
3236
3237         M_AADD_IMM(REG_SP, cd->stackframesize * 8, rd->argintregs[0]);
3238         disp = dseg_add_functionptr(cd, codegen_finish_native_call);
3239         M_ALD(REG_ITMP1, REG_PV, disp);
3240         M_ALD(REG_ITMP1, REG_ITMP1, 0); /* XXX what about TOC? */
3241         M_MTCTR(REG_ITMP1);
3242         M_JSR;
3243         M_MOV(REG_RESULT, REG_ITMP1_XPTR);
3244
3245         /* restore return value */
3246
3247         if (md->returntype.type != TYPE_VOID) {
3248                 if (IS_INT_LNG_TYPE(md->returntype.type)) {
3249                         M_LLD(REG_RESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
3250                 }
3251                 else {
3252 /*                      if (IS_2_WORD_TYPE(md->returntype.type)) */
3253                                 M_DLD(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
3254 /*                      else
3255                                 M_FLD(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8); F XXX
3256                                 */
3257                 }
3258         }
3259
3260         M_ALD(REG_ITMP2_XPC, REG_SP, cd->stackframesize * 8 + LA_LR_OFFSET);
3261         M_MTLR(REG_ITMP2_XPC);
3262         M_LDA(REG_SP, REG_SP, cd->stackframesize * 8); /* remove stackframe           */
3263
3264         /* check for exception */
3265
3266         M_TST(REG_ITMP1_XPTR);
3267         M_BNE(1);                           /* if no exception then return        */
3268
3269         M_RET;
3270
3271         /* handle exception */
3272
3273         M_LADD_IMM(REG_ITMP2_XPC, -4, REG_ITMP2_XPC);  /* exception address       */
3274
3275         disp = dseg_add_functionptr(cd, asm_handle_nat_exception);
3276         M_ALD(REG_ITMP3, REG_PV, disp);
3277         M_MTCTR(REG_ITMP3);
3278         M_RTS;
3279
3280         /* generate patcher stub call code */
3281
3282         {
3283                 patchref *pref;
3284                 u4        mcode;
3285                 u1       *savedmcodeptr;
3286                 u1       *tmpmcodeptr;
3287
3288                 for (pref = cd->patchrefs; pref != NULL; pref = pref->next) {
3289                         /* Get machine code which is patched back in later. The
3290                            call is 1 instruction word long. */
3291
3292                         tmpmcodeptr = cd->mcodebase + pref->branchpos;
3293
3294                         mcode = *((u4 *) tmpmcodeptr);
3295
3296                         /* Patch in the call to call the following code (done at
3297                            compile time). */
3298
3299                         savedmcodeptr = cd->mcodeptr;   /* save current mcodeptr          */
3300                         cd->mcodeptr  = tmpmcodeptr;    /* set mcodeptr to patch position */
3301
3302                         disp = ((u4 *) savedmcodeptr) - (((u4 *) tmpmcodeptr) + 1);
3303                         M_BL(disp);
3304
3305                         cd->mcodeptr = savedmcodeptr;   /* restore the current mcodeptr   */
3306
3307                         /* create stack frame - keep stack 16-byte aligned */
3308
3309                         M_AADD_IMM(REG_SP, -8 * 8, REG_SP);
3310
3311                         /* move return address onto stack */
3312
3313                         M_MFLR(REG_ZERO);
3314                         M_AST(REG_ZERO, REG_SP, 5 * 8);
3315
3316                         /* move pointer to java_objectheader onto stack */
3317
3318 #if defined(ENABLE_THREADS)
3319                         /* order reversed because of data segment layout */
3320
3321                         (void) dseg_add_unique_address(cd, NULL);                         /* flcword    */
3322                         (void) dseg_add_unique_address(cd, lock_get_initial_lock_word()); /* monitorPtr */
3323                         disp = dseg_add_unique_address(cd, NULL);                         /* vftbl      */
3324
3325                         M_LDA(REG_ITMP3, REG_PV, disp);
3326                         M_AST(REG_ITMP3, REG_SP, 4 * 8);
3327 #else
3328                         /* do nothing */
3329 #endif
3330
3331                         /* move machine code onto stack */
3332
3333                         disp = dseg_add_unique_s4(cd, mcode);
3334                         M_ILD(REG_ITMP3, REG_PV, disp);
3335                         M_IST(REG_ITMP3, REG_SP, 3 * 8);
3336
3337                         /* move class/method/field reference onto stack */
3338
3339                         disp = dseg_add_unique_address(cd, pref->ref);
3340                         M_ALD(REG_ITMP3, REG_PV, disp);
3341                         M_AST(REG_ITMP3, REG_SP, 2 * 8);
3342
3343                         /* move data segment displacement onto stack */
3344
3345                         disp = dseg_add_unique_s4(cd, pref->disp);
3346                         M_ILD(REG_ITMP3, REG_PV, disp);
3347                         M_IST(REG_ITMP3, REG_SP, 1 * 8);
3348
3349                         /* move patcher function pointer onto stack */
3350
3351                         disp = dseg_add_functionptr(cd, pref->patcher);
3352                         M_ALD(REG_ITMP3, REG_PV, disp);
3353                         M_AST(REG_ITMP3, REG_SP, 0 * 8);
3354
3355                         disp = dseg_add_functionptr(cd, asm_patcher_wrapper);
3356                         M_ALD(REG_ITMP3, REG_PV, disp);
3357                         M_MTCTR(REG_ITMP3);
3358                         M_RTS;
3359                 }
3360         }
3361
3362         codegen_finish(jd);
3363
3364         return code->entrypoint;
3365 }
3366
3367
3368
3369
3370 /*
3371  * These are local overrides for various environment variables in Emacs.
3372  * Please do not remove this and leave it at the end of the file, where
3373  * Emacs will automagically detect them.
3374  * ---------------------------------------------------------------------
3375  * Local variables:
3376  * mode: c
3377  * indent-tabs-mode: t
3378  * c-basic-offset: 4
3379  * tab-width: 4
3380  * End:
3381  * vim:noexpandtab:sw=4:ts=4:
3382  */