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
  34    $Id: codegen.c 5632 2006-10-02 13:43:15Z edwin $
  35
  36 */
  37
  38
  39 #include "config.h"
  40
  41 #include <assert.h>
  42 #include <stdio.h>
  43 #include <signal.h>
  44
  45 #include "vm/types.h"
  46
  47 #include "md-abi.h"
  48 #include "vm/jit/abi-asm.h"
  49
  50 #include "vm/jit/powerpc64/arch.h"
  51 #include "vm/jit/powerpc64/codegen.h"
  52
  53 #include "mm/memory.h"
  54 #include "native/native.h"
  55 #include "vm/builtin.h"
  56 #include "vm/exceptions.h"
  57 #include "vm/global.h"
  58 #include "vm/loader.h"
  59 #include "vm/options.h"
  60 #include "vm/stringlocal.h"
  61 #include "vm/vm.h"
  62 #include "vm/jit/asmpart.h"
  63 #include "vm/jit/codegen-common.h"
  64 #include "vm/jit/dseg.h"
  65 #include "vm/jit/emit-common.h"
  66 #include "vm/jit/jit.h"
  67 #include "vm/jit/parse.h"
  68 #include "vm/jit/patcher.h"
  69 #include "vm/jit/reg.h"
  70 #include "vm/jit/replace.h"
  71
  72 #if defined(ENABLE_LSRA)
  73 # include "vm/jit/allocator/lsra.h"
  74 #endif
  75
  76
  77 /* codegen *********************************************************************
  78
  79    Generates machine code.
  80
  81 *******************************************************************************/
  82
  83 bool codegen(jitdata *jd)
  84 {
  85         methodinfo         *m;
  86         codeinfo           *code;
  87         codegendata        *cd;
  88         registerdata       *rd;
  89         s4                  len, s1, s2, s3, d, disp;
  90         ptrint              a;
  91         s4                  stackframesize;
  92         varinfo            *var;
  93         basicblock         *bptr;
  94         instruction        *iptr;
  95         exceptiontable     *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
 104         /* get required compiler data */
 105
 106         m    = jd->m;
 107         code = jd->code;
 108         cd   = jd->cd;
 109         rd   = jd->rd;
 110
 111         /* prevent compiler warnings */
 112
 113         d = 0;
 114         lm = NULL;
 115         bte = NULL;
 116
 117         {
 118         s4 i, p, t, l;
 119         s4 savedregs_num;
 120
 121         savedregs_num = 0;
 122
 123         /* space to save used callee saved registers */
 124
 125         savedregs_num += (INT_SAV_CNT - rd->savintreguse);
 126         savedregs_num += (FLT_SAV_CNT - rd->savfltreguse);
 127
 128         stackframesize = rd->memuse + savedregs_num;
 129
 130 #if defined(ENABLE_THREADS)
 131         /* space to save argument of monitor_enter and Return Values to survive */
 132     /* monitor_exit. The stack position for the argument can not be shared  */
 133         /* with place to save the return register on PPC64, since both values     */
 134         /* reside in R3 */
 135         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
 136                 /* reserve 2 slots for long/double return values for monitorexit */
 137                 stackframesize += 2;
 138         }
 139
 140 #endif
 141
 142         /* create method header */
 143
 144         /* align stack to 16-bytes */
 145
 146 /*      if (!m->isleafmethod || opt_verbosecall) */
 147                 stackframesize = (stackframesize + 3) & ~3;
 148
 149 /*      else if (m->isleafmethod && (stackframesize == LA_WORD_SIZE)) */
 150 /*              stackframesize = 0; */
 151
 152         (void) dseg_addaddress(cd, code);                      /* CodeinfoPointer */
 153         (void) dseg_adds4(cd, stackframesize * 8);             /* FrameSize       */
 154
 155 #if defined(ENABLE_THREADS)
 156         /* IsSync contains the offset relative to the stack pointer for the
 157            argument of monitor_exit used in the exception handler. Since the
 158            offset could be zero and give a wrong meaning of the flag it is
 159            offset by one.
 160         */
 161
 162         if (checksync && (m->flags & ACC_SYNCHRONIZED))
 163                 (void) dseg_adds4(cd, (rd->memuse + 1) * 8);       /* IsSync          */
 164         else
 165 #endif
 166                 (void) dseg_adds4(cd, 0);                          /* IsSync          */
 167
 168         (void) dseg_adds4(cd, jd->isleafmethod);                /* IsLeaf          */
 169         (void) dseg_adds4(cd, INT_SAV_CNT - rd->savintreguse); /* IntSave         */
 170         (void) dseg_adds4(cd, FLT_SAV_CNT - rd->savfltreguse); /* FltSave         */
 171
 172         dseg_addlinenumbertablesize(cd);
 173
 174         (void) dseg_adds4(cd, cd->exceptiontablelength);       /* ExTableSize     */
 175
 176         /* create exception table */
 177
 178         for (ex = cd->exceptiontable; ex != NULL; ex = ex->down) {
 179                 dseg_addtarget(cd, ex->start);
 180                 dseg_addtarget(cd, ex->end);
 181                 dseg_addtarget(cd, ex->handler);
 182                 (void) dseg_addaddress(cd, ex->catchtype.any);
 183         }
 184
 185         /* create stack frame (if necessary) */
 186
 187         if (!jd->isleafmethod) {
 188                 M_MFLR(REG_ZERO);
 189                 M_AST(REG_ZERO, REG_SP, LA_LR_OFFSET);
 190         }
 191
 192         if (stackframesize)
 193                 M_STDU(REG_SP, REG_SP, -stackframesize * 8);
 194
 195         /* save return address and used callee saved registers */
 196
 197         p = stackframesize;
 198         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
 199                 p--; M_LST(rd->savintregs[i], REG_SP, p * 8);
 200         }
 201         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
 202                 p --; M_DST(rd->savfltregs[i], REG_SP, p * 8);
 203         }
 204
 205         /* take arguments out of register or stack frame */
 206
 207         md = m->parseddesc;
 208
 209         for (p = 0, l = 0; p < md->paramcount; p++) {
 210                 t = md->paramtypes[p].type;
 211                 var = &(rd->locals[l][t]);
 212                 l++;
 213                 if (IS_2_WORD_TYPE(t))    /* increment local counter for 2 word types */
 214                         l++;
 215                 if (var->type < 0)
 216                         continue;
 217                 s1 = md->params[p].regoff;
 218                 if (IS_INT_LNG_TYPE(t)) {                    /* integer args          */
 219                         if (IS_2_WORD_TYPE(t))
 220                                 s2 = PACK_REGS(rd->argintregs[GET_LOW_REG(s1)],
 221                                                            rd->argintregs[GET_HIGH_REG(s1)]);
 222                         else
 223                                 s2 = rd->argintregs[s1];
 224                         if (!md->params[p].inmemory) {           /* register arguments    */
 225                                 if (!(var->flags & INMEMORY)) {      /* reg arg -> register   */
 226                                         M_NOP;
 227                                         if (IS_2_WORD_TYPE(t))          /* FIXME, only M_INTMOVE here */
 228                                                 M_LNGMOVE(s2, var->regoff);
 229                                         else
 230                                                 M_INTMOVE(s2, var->regoff);
 231
 232                                 } else {                             /* reg arg -> spilled    */
 233                                         if (IS_2_WORD_TYPE(t))
 234                                                 M_LST(s2, REG_SP, var->regoff * 4);
 235                                         else
 236                                                 M_IST(s2, REG_SP, var->regoff * 4);
 237                                 }
 238
 239                         } else {                                 /* stack arguments       */
 240                                 if (!(var->flags & INMEMORY)) {      /* stack arg -> register */
 241                                         if (IS_2_WORD_TYPE(t))
 242                                                 M_LLD(var->regoff, REG_SP, (stackframesize + s1) * 4);
 243                                         else
 244                                                 M_ILD(var->regoff, REG_SP, (stackframesize + s1) * 4);
 245
 246                                 } else {                             /* stack arg -> spilled  */
 247 #if 1
 248                                         M_ILD(REG_ITMP1, REG_SP, (stackframesize + s1) * 4);
 249                                         M_IST(REG_ITMP1, REG_SP, var->regoff * 4);
 250                                         if (IS_2_WORD_TYPE(t)) {
 251                                                 M_ILD(REG_ITMP1, REG_SP, (stackframesize + s1) * 4 +4);
 252                                                 M_IST(REG_ITMP1, REG_SP, var->regoff * 4 + 4);
 253                                         }
 254 #else
 255                                         /* Reuse Memory Position on Caller Stack */
 256                                         var->regoff = stackframesize + s1;
 257 #endif
 258                                 }
 259                         }
 260
 261                 } else {                                     /* floating args         */
 262                         if (!md->params[p].inmemory) {           /* register arguments    */
 263                                 s2 = rd->argfltregs[s1];
 264                                 if (!(var->flags & INMEMORY)) {      /* reg arg -> register   */
 265                                         M_FLTMOVE(s2, var->regoff);
 266
 267                                 } else {                                         /* reg arg -> spilled    */
 268                                         if (IS_2_WORD_TYPE(t))
 269                                                 M_DST(s2, REG_SP, var->regoff * 4);
 270                                         else
 271                                                 M_FST(s2, REG_SP, var->regoff * 4);
 272                                 }
 273
 274                         } else {                                 /* stack arguments       */
 275                                 if (!(var->flags & INMEMORY)) {      /* stack-arg -> register */
 276                                         if (IS_2_WORD_TYPE(t))
 277                                                 M_DLD(var->regoff, REG_SP, (stackframesize + s1) * 4);
 278
 279                                         else
 280                                                 M_FLD(var->regoff, REG_SP, (stackframesize + s1) * 4);
 281
 282                                 } else {                             /* stack-arg -> spilled  */
 283 #if 1
 284                                         if (IS_2_WORD_TYPE(t)) {
 285                                                 M_DLD(REG_FTMP1, REG_SP, (stackframesize + s1) * 4);
 286                                                 M_DST(REG_FTMP1, REG_SP, var->regoff * 4);
 287                                                 var->regoff = stackframesize + s1;
 288
 289                                         } else {
 290                                                 M_FLD(REG_FTMP1, REG_SP, (stackframesize + s1) * 4);
 291                                                 M_FST(REG_FTMP1, REG_SP, var->regoff * 4);
 292                                         }
 293 #else
 294                                         /* Reuse Memory Position on Caller Stack */
 295                                         var->regoff = stackframesize + s1;
 296 #endif
 297                                 }
 298                         }
 299                 }
 300         } /* end for */
 301
 302         /* save monitorenter argument */
 303
 304 #if defined(ENABLE_THREADS)
 305
 306         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
 307
 308                 /* stackoffset for argument used for LOCK_monitor_exit */
 309                 s1 = rd->memuse;
 310 #if !defined (NDEBUG)
 311                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 312                         M_AADD_IMM(REG_SP, -((LA_SIZE_IN_POINTERS + PA_SIZE_IN_POINTERS + ARG_CNT) * 8), REG_SP);
 313
 314                         for (p = 0; p < INT_ARG_CNT; p++)
 315                                 M_LST(rd->argintregs[p], REG_SP, LA_SIZE + PA_SIZE + p * 8);
 316
 317                         for (p = 0; p < FLT_ARG_CNT; p++)
 318                                 M_DST(rd->argfltregs[p], REG_SP, LA_SIZE + PA_SIZE + (INT_ARG_CNT + p) * 8);
 319
 320                         /* used for LOCK_monitor_exit, adopt size because we created another stackframe */
 321                         s1 += (LA_SIZE_IN_POINTERS + PA_SIZE_IN_POINTERS + ARG_CNT);
 322                 }
 323 #endif
 324                 p = dseg_addaddress(cd, LOCK_monitor_enter);
 325                 M_ALD(REG_ITMP3, REG_PV, p);
 326                 M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
 327                 M_MTCTR(REG_ITMP3);
 328
 329                 /* get or test the lock object */
 330
 331                 if (m->flags & ACC_STATIC) {
 332                         p = dseg_addaddress(cd, &m->class->object.header);
 333                         M_ALD(rd->argintregs[0], REG_PV, p);
 334                 }
 335                 else {
 336                         M_TST(rd->argintregs[0]);
 337                         M_BEQ(0);
 338                         codegen_add_nullpointerexception_ref(cd);
 339                 }
 340
 341                 M_AST(rd->argintregs[0], REG_SP, s1 * 8);       /* rd->memuse * 8 */
 342                 M_JSR;
 343 #if !defined (NDEBUG)
 344                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 345                         for (p = 0; p < INT_ARG_CNT; p++)
 346                                 M_LLD(rd->argintregs[p], REG_SP, LA_SIZE + PA_SIZE + p * 8);
 347
 348                         for (p = 0; p < FLT_ARG_CNT; p++)
 349                                 M_DLD(rd->argfltregs[p], REG_SP, LA_SIZE + PA_SIZE + (INT_ARG_CNT + p) * 8);
 350
 351                         M_AADD_IMM(REG_SP, (LA_SIZE_IN_POINTERS + PA_SIZE_IN_POINTERS + ARG_CNT) * 8, REG_SP);
 352                 }
 353 #endif
 354         }
 355 #endif
 356
 357         /* call trace function */
 358 #if !defined (NDEBUG)
 359         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
 360                 emit_verbosecall_enter(jd);
 361
 362         }
 363 #endif
 364
 365         /* end of header generation */
 366
 367         replacementpoint = jd->code->rplpoints;
 368
 369         /* walk through all basic blocks */
 370         for (bptr = jd->new_basicblocks; bptr != NULL; bptr = bptr->next) {
 371
 372                 bptr->mpc = (s4) (cd->mcodeptr - cd->mcodebase);
 373
 374                 if (bptr->flags >= BBREACHED) {
 375
 376                 /* branch resolving */
 377
 378                 {
 379                 branchref *brefs;
 380                 for (brefs = bptr->branchrefs; brefs != NULL; brefs = brefs->next) {
 381                         gen_resolvebranch((u1*) cd->mcodebase + brefs->branchpos,
 382                                           brefs->branchpos,
 383                                                           bptr->mpc);
 384                         }
 385                 }
 386
 387                 /* handle replacement points */
 388
 389 #if 0
 390                 if (bptr->bitflags & BBFLAG_REPLACEMENT) {
 391                         replacementpoint->pc = (u1*)(ptrint)bptr->mpc; /* will be resolved later */
 392
 393                         replacementpoint++;
 394                 }
 395 #endif
 396
 397                 /* copy interface registers to their destination */
 398
 399                 len = bptr->indepth;
 400                 MCODECHECK(64+len);
 401
 402 #if defined(ENABLE_LSRA)
 403                 if (opt_lsra) {
 404                         while (len) {
 405                                 len--;
 406                                 var = VAR(bptr->invars[len]);
 407                                 if ((len == bptr->indepth-1) && (bptr->type != BBTYPE_STD)) {
 408                                         /* d = reg_of_var(m, var, REG_ITMP1); */
 409                                         if (!(var->flags & INMEMORY))
 410                                                 d = var->regoff;
 411                                         else
 412                                                 d = REG_ITMP1;
 413                                         M_INTMOVE(REG_ITMP1, d);
 414                                         emit_store(jd, NULL, var, d);
 415                                 }
 416                         }
 417                 } else {
 418 #endif
 419                 while (len) {
 420                         len--;
 421                         var = VAR(bptr->invars[len]);
 422                         if ((len == bptr->indepth-1) && (bptr->type != BBTYPE_STD)) {
 423                                 d = codegen_reg_of_var(0, var, REG_ITMP1);
 424                                 M_INTMOVE(REG_ITMP1, d);
 425                                 emit_store(jd, NULL, var, d);
 426                         }
 427                         else {
 428                                 assert((var->flags & OUTVAR));
 429                         }
 430                 }
 431
 432 #if defined(ENABLE_LSRA)
 433                 }
 434 #endif
 435                 /* walk through all instructions */
 436
 437                 len = bptr->icount;
 438                 currentline = 0;
 439
 440                 for (iptr = bptr->iinstr; len > 0; len--, iptr++) {
 441                         if (iptr->line != currentline) {
 442                                 dseg_addlinenumber(cd, iptr->line);
 443                                 currentline = iptr->line;
 444                         }
 445
 446                         MCODECHECK(64);   /* an instruction usually needs < 64 words      */
 447
 448                         /* M_NOP; M_NOP; XXX */
 449                         switch (iptr->opc) {
 450                         case ICMD_NOP:    /* ...  ==> ...                                 */
 451                         case ICMD_INLINE_START:
 452                         case ICMD_INLINE_END:
 453                                 break;
 454
 455                 case ICMD_CHECKNULL:  /* ..., objectref  ==> ..., objectref           */
 456
 457                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 458                         M_TST(s1);
 459                         M_BEQ(0);
 460                         codegen_add_nullpointerexception_ref(cd);
 461                         break;
 462
 463                 /* constant operations ************************************************/
 464
 465                 case ICMD_ICONST:     /* ...  ==> ..., constant                       */
 466
 467                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 468                         ICONST(d, iptr->sx.val.i);
 469                         emit_store_dst(jd, iptr, d);
 470                         break;
 471
 472                 case ICMD_LCONST:     /* ...  ==> ..., constant                       */
 473
 474                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 475                         LCONST(d, iptr->sx.val.l);
 476                         emit_store_dst(jd, iptr, d);
 477                         break;
 478
 479                 case ICMD_FCONST:     /* ...  ==> ..., constant                       */
 480
 481                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 482                         a = dseg_addfloat(cd, iptr->sx.val.f);
 483                         M_FLD(d, REG_PV, a);
 484                         emit_store_dst(jd, iptr, d);
 485                         break;
 486
 487                 case ICMD_DCONST:     /* ...  ==> ..., constant                       */
 488
 489                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 490                         a = dseg_adddouble(cd, iptr->sx.val.d);
 491                         M_DLD(d, REG_PV, a);
 492                         emit_store_dst(jd, iptr, d);
 493                         break;
 494
 495                 case ICMD_ACONST:     /* ...  ==> ..., constant                       */
 496                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 497                         disp = dseg_addaddress(cd, iptr->sx.val.anyptr);
 498
 499                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
 500                                 codegen_addpatchref(cd, PATCHER_aconst,
 501                                                                         iptr->sx.val.c.ref,
 502                                                                     disp);
 503
 504                                 if (opt_showdisassemble)
 505                                         M_NOP;
 506                         }
 507
 508                         M_ALD(d, REG_PV, disp);
 509                         emit_store_dst(jd, iptr, d);
 510                         break;
 511
 512
 513                 /* load/store/copy/move operations ************************************/
 514
 515                 case ICMD_ILOAD:      /* ...  ==> ..., content of local variable      */
 516                 case ICMD_ALOAD:      /* s1.localindex = local variable               */
 517                 case ICMD_LLOAD:
 518                 case ICMD_FLOAD:      /* ...  ==> ..., content of local variable      */
 519                 case ICMD_DLOAD:      /* ...  ==> ..., content of local variable      */
 520                 case ICMD_ISTORE:     /* ..., value  ==> ...                          */
 521                 case ICMD_ASTORE:     /* dst.localindex = local variable              */
 522                 case ICMD_LSTORE:
 523                 case ICMD_FSTORE:     /* ..., value  ==> ...                          */
 524                 case ICMD_DSTORE:     /* ..., value  ==> ...                          */
 525                 case ICMD_COPY:
 526                 case ICMD_MOVE:
 527
 528                         emit_copy(jd, iptr, VAROP(iptr->s1), VAROP(iptr->dst));
 529                         break;
 530
 531
 532                 /* pop operations *****************************************************/
 533
 534                 /* attention: double and longs are only one entry in CACAO ICMDs      */
 535
 536                 case ICMD_POP:        /* ..., value  ==> ...                          */
 537                 case ICMD_POP2:       /* ..., value, value  ==> ...                   */
 538
 539                         break;
 540
 541
 542                 /* integer operations *************************************************/
 543
 544                 case ICMD_INEG:       /* ..., value  ==> ..., - value                 */
 545
 546                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 547                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 548                         M_NEG(s1, d);
 549                         emit_store_dst(jd, iptr, d);
 550                         break;
 551
 552                 case ICMD_LNEG:       /* ..., value  ==> ..., - value                 */
 553
 554                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 555                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 556                         M_NEG(s1, d); /* XXX */
 557                         emit_store_dst(jd, iptr, d);
 558                         break;
 559
 560                 case ICMD_I2L:        /* ..., value  ==> ..., value                   */
 561
 562                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 563                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 564                         M_INTMOVE(s1, d);
 565                         emit_store_dst(jd, iptr, d);
 566                         break;
 567
 568                 case ICMD_L2I:        /* ..., value  ==> ..., value                   */
 569
 570                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 571                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 572                         M_ISEXT(s1, d);
 573                         emit_store_dst(jd, iptr, d);
 574                         break;
 575
 576                 case ICMD_INT2BYTE:   /* ..., value  ==> ..., value                   */
 577
 578                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 579                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 580                         M_BSEXT(s1, d);
 581                         emit_store_dst(jd, iptr, d);
 582                         break;
 583
 584                 case ICMD_INT2CHAR:   /* ..., value  ==> ..., value                   */
 585
 586                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 587                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 588                         M_CZEXT(s1, d);
 589                         emit_store_dst(jd, iptr, d);
 590                         break;
 591
 592                 case ICMD_INT2SHORT:  /* ..., value  ==> ..., value                   */
 593
 594                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 595                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 596                         M_SSEXT(s1, d);
 597                         emit_store_dst(jd, iptr, d);
 598                         break;
 599
 600
 601                 case ICMD_IADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 602
 603                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 604                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 605                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 606                         M_IADD(s1, s2, d);
 607                         M_EXTSW(d,d);
 608                         emit_store_dst(jd, iptr, d);
 609                         break;
 610
 611                 case ICMD_IADDCONST:  /* ..., value  ==> ..., value + constant        */
 612                                       /* sx.val.i = constant                          */
 613
 614                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 615                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 616                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767)) {
 617                                 M_IADD_IMM(s1, iptr->sx.val.i, d);
 618                         } else {
 619                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 620                                 M_IADD(s1, REG_ITMP2, d);
 621                         }
 622                         emit_store_dst(jd, iptr, d);
 623                         break;
 624
 625                 case ICMD_LADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 626
 627                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 628                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 629                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 630                         M_LADD(s1, s2, d);
 631                         emit_store_dst(jd, iptr, d);
 632                         break;
 633
 634                 case ICMD_LADDCONST:  /* ..., value  ==> ..., value + constant        */
 635                                       /* sx.val.l = constant                          */
 636
 637                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 638                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 639                         /* XXX check me */
 640                         if ((iptr->sx.val.l >= -32768) && (iptr->sx.val.l <= 32767)) {
 641                                 M_LADD_IMM(s1, iptr->sx.val.l, d);
 642                         } else {
 643                                 LCONST(REG_ITMP2, iptr->sx.val.l);
 644                                 M_LADD(s1, REG_ITMP2, d);
 645                         }
 646                         emit_store_dst(jd, iptr, d);
 647                         break;
 648
 649                 case ICMD_ISUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 650
 651                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 652                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 653                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 654                         M_SUB(s1, s2, d);
 655                         emit_store_dst(jd, iptr, d);
 656                         break;
 657
 658                 case ICMD_ISUBCONST:  /* ..., value  ==> ..., value + constant        */
 659                                       /* sx.val.i = constant                          */
 660
 661                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 662                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 663                         if ((iptr->sx.val.i >= -32767) && (iptr->sx.val.i <= 32768)) {
 664                                 M_IADD_IMM(s1, -iptr->sx.val.i, d);
 665                         } else {
 666                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 667                                 M_SUB(s1, REG_ITMP2, d);
 668                         }
 669                         emit_store_dst(jd, iptr, d);
 670                         break;
 671
 672                 case ICMD_LSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 673
 674                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 675                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 676                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 677                         M_SUB(s1, s2, d);
 678                         emit_store_dst(jd, iptr, d);
 679                         break;
 680
 681                 case ICMD_LSUBCONST:  /* ..., value  ==> ..., value - constant        */
 682                                       /* sx.val.l = constant                          */
 683
 684                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 685                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 686                         /* XXX check me */
 687                         if ((iptr->sx.val.l >= -32768) && (iptr->sx.val.l <= 32767)) {
 688                                 M_LADD_IMM(s1, -iptr->sx.val.l, d);
 689                         } else {
 690                                 LCONST(REG_ITMP2, iptr->sx.val.l);
 691                                 M_SUB(s1, REG_ITMP2, d);
 692                         }
 693                         emit_store_dst(jd, iptr, d);
 694                         break;
 695
 696                 case ICMD_IDIV:
 697                 case ICMD_LDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 698
 699                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 700                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 701                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 702                         M_TST(s2);
 703                         M_BEQ(0);
 704                         codegen_add_arithmeticexception_ref(cd);
 705
 706                         M_DIV(s1, s2, d);
 707
 708                         emit_store_dst(jd, iptr, d);
 709                         break;
 710
 711                 case ICMD_IREM:
 712                 case ICMD_LREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 713                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 714                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 715                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 716                         M_TST(s2);
 717                         M_BEQ(0);
 718                         codegen_add_arithmeticexception_ref(cd);
 719
 720                         /* FIXME s1 == -2^63 && s2 == -1 does not work that way */
 721                         M_DIV(s1, s2, d);
 722                         M_MUL( d, s2, d);
 723                         M_SUB(s1,  d, d);
 724                         emit_store_dst(jd, iptr, d);
 725                         break;
 726
 727                 case ICMD_IMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 728
 729                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 730                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 731                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 732                         M_MUL(s1, s2, d);
 733                         emit_store_dst(jd, iptr, d);
 734                         break;
 735
 736                 case ICMD_IMULCONST:  /* ..., value  ==> ..., value * constant        */
 737                                       /* sx.val.i = constant                          */
 738
 739                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 740                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 741                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767))
 742                                 M_MUL_IMM(s1, iptr->sx.val.i, d);
 743                         else {
 744                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 745                                 M_MUL(s1, REG_ITMP3, d);
 746                         }
 747                         emit_store_dst(jd, iptr, d);
 748                         break;
 749
 750                 case ICMD_IDIVPOW2:   /* ..., value  ==> ..., value << constant       */
 751
 752                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 753                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 754                         M_SRA_IMM(s1, iptr->sx.val.i, d);
 755                         M_ADDZE(d, d);
 756                         emit_store_dst(jd, iptr, d);
 757                         break;
 758
 759                 case ICMD_ISHL:       /* ..., val1, val2  ==> ..., val1 << val2       */
 760
 761                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 762                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 763                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 764                         M_AND_IMM(s2, 0x1f, REG_ITMP3);
 765                         M_SLL(s1, REG_ITMP3, d);
 766                         emit_store_dst(jd, iptr, d);
 767                         break;
 768
 769                 case ICMD_ISHLCONST:  /* ..., value  ==> ..., value << constant       */
 770                                       /* sx.val.i = constant                             */
 771
 772                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 773                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 774                         M_SLL_IMM(s1, iptr->sx.val.i & 0x1f, d);
 775                         emit_store_dst(jd, iptr, d);
 776                         break;
 777
 778                 case ICMD_ISHR:       /* ..., val1, val2  ==> ..., val1 >> val2       */
 779
 780                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 781                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 782                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 783                         M_AND_IMM(s2, 0x1f, REG_ITMP3);
 784                         M_SRA(s1, REG_ITMP3, d);
 785                         emit_store_dst(jd, iptr, d);
 786                         break;
 787
 788                 case ICMD_ISHRCONST:  /* ..., value  ==> ..., value >> constant       */
 789                                       /* sx.val.i = constant                             */
 790
 791                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 792                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 793                         M_SRA_IMM(s1, iptr->sx.val.i & 0x1f, d);
 794                         emit_store_dst(jd, iptr, d);
 795                         break;
 796
 797                 case ICMD_IUSHR:      /* ..., val1, val2  ==> ..., val1 >>> val2      */
 798
 799                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 800                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 801                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 802                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 803                         M_SRL(s1, REG_ITMP2, d);
 804                         emit_store_dst(jd, iptr, d);
 805                         break;
 806
 807                 case ICMD_IUSHRCONST: /* ..., value  ==> ..., value >>> constant      */
 808                                       /* sx.val.i = constant                             */
 809
 810                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 811                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 812                         if (iptr->sx.val.i & 0x1f) {
 813                                 M_SRL_IMM(s1, iptr->sx.val.i & 0x1f, d);
 814                         } else {
 815                                 M_INTMOVE(s1, d);
 816                         }
 817                         emit_store_dst(jd, iptr, d);
 818                         break;
 819
 820                 case ICMD_IAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 821                 case ICMD_LAND:
 822
 823                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 824                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 825                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 826                         M_AND(s1, s2, d);
 827                         emit_store_dst(jd, iptr, d);
 828                         break;
 829
 830                 case ICMD_IANDCONST:  /* ..., value  ==> ..., value & constant        */
 831                                       /* sx.val.i = constant                          */
 832
 833                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 834                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 835                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535)) {
 836                                 M_AND_IMM(s1, iptr->sx.val.i, d);
 837                                 }
 838                         /*
 839                         else if (iptr->sx.val.i == 0xffffff) {
 840                                 M_RLWINM(s1, 0, 8, 31, d);
 841                                 }
 842                         */
 843                         else {
 844                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 845                                 M_AND(s1, REG_ITMP3, d);
 846                         }
 847                         emit_store_dst(jd, iptr, d);
 848                         break;
 849
 850                 case ICMD_LANDCONST:  /* ..., value  ==> ..., value & constant        */
 851                                       /* sx.val.l = constant                          */
 852
 853                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 854                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 855                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
 856                                 M_AND_IMM(s1, iptr->sx.val.l, d);
 857                         /*
 858                         else if (iptr->sx.val.l == 0xffffff) {
 859                                 M_RLWINM(s1, 0, 8, 31, d);
 860                                 }
 861                         */
 862                         else {
 863                                 LCONST(REG_ITMP3, iptr->sx.val.l);
 864                                 M_AND(s1, REG_ITMP3, d);
 865                         }
 866                         emit_store_dst(jd, iptr, d);
 867                         break;
 868
 869                 case ICMD_IREMPOW2:   /* ..., value  ==> ..., value % constant        */
 870                                       /* sx.val.i = constant                             */
 871
 872                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 873                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 874                         M_MOV(s1, REG_ITMP2);
 875                         M_CMPI(s1, 0);
 876                         M_BGE(1 + 2*(iptr->sx.val.i >= 32768));
 877                         if (iptr->sx.val.i >= 32768) {
 878                                 M_ADDIS(REG_ZERO, iptr->sx.val.i >> 16, REG_ITMP2);
 879                                 M_OR_IMM(REG_ITMP2, iptr->sx.val.i, REG_ITMP2);
 880                                 M_IADD(s1, REG_ITMP2, REG_ITMP2);
 881                         } else {
 882                                 M_IADD_IMM(s1, iptr->sx.val.i, REG_ITMP2);
 883                         }
 884                         {
 885                                 int b=0, m = iptr->sx.val.i;
 886                                 while (m >>= 1)
 887                                         ++b;
 888                                 M_RLWINM(REG_ITMP2, 0, 0, 30-b, REG_ITMP2);
 889                         }
 890                         M_SUB(s1, REG_ITMP2, d);
 891                         emit_store_dst(jd, iptr, d);
 892                         break;
 893
 894                 case ICMD_IOR:        /* ..., val1, val2  ==> ..., val1 | val2        */
 895                 case ICMD_LOR:
 896
 897                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 898                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 899                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 900                         M_OR(s1, s2, d);
 901                         emit_store_dst(jd, iptr, d);
 902                         break;
 903
 904                 case ICMD_IORCONST:   /* ..., value  ==> ..., value | constant        */
 905                                       /* sx.val.i = constant                          */
 906
 907                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 908                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 909                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
 910                                 M_OR_IMM(s1, iptr->sx.val.i, d);
 911                         else {
 912                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 913                                 M_OR(s1, REG_ITMP3, d);
 914                         }
 915                         emit_store_dst(jd, iptr, d);
 916                         break;
 917
 918                 case ICMD_LORCONST:   /* ..., value  ==> ..., value | constant        */
 919                                       /* sx.val.l = constant                          */
 920
 921                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 922                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 923                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
 924                                 M_OR_IMM(s1, iptr->sx.val.l, d);
 925                         else {
 926                                 LCONST(REG_ITMP3, iptr->sx.val.l);
 927                                 M_OR(s1, REG_ITMP3, d);
 928                         }
 929                         emit_store_dst(jd, iptr, d);
 930                         break;
 931
 932
 933                 case ICMD_IXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
 934                 case ICMD_LXOR:
 935
 936                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 937                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 938                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 939                         M_XOR(s1, s2, d);
 940                         emit_store_dst(jd, iptr, d);
 941                         break;
 942
 943                 case ICMD_IXORCONST:  /* ..., value  ==> ..., value ^ constant        */
 944                                       /* sx.val.i = constant                          */
 945
 946                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 947                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 948                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
 949                                 M_XOR_IMM(s1, iptr->sx.val.i, d);
 950                         else {
 951                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 952                                 M_XOR(s1, REG_ITMP3, d);
 953                         }
 954                         emit_store_dst(jd, iptr, d);
 955                         break;
 956
 957                 case ICMD_LXORCONST:  /* ..., value  ==> ..., value ^ constant        */
 958                                       /* sx.val.l = constant                          */
 959
 960                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 961                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 962                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
 963                                 M_XOR_IMM(s1, iptr->sx.val.l, d);
 964                         else {
 965                                 LCONST(REG_ITMP3, iptr->sx.val.l);
 966                                 M_XOR(s1, REG_ITMP3, d);
 967                         }
 968                         emit_store_dst(jd, iptr, d);
 969                         break;
 970
 971                 case ICMD_LCMP:       /* ..., val1, val2  ==> ..., val1 cmp val2      */
 972
 973                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 974                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 975                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 976                         /* XXX implement me!!! */
 977                         emit_store_dst(jd, iptr, d);
 978                         break;
 979                         break;
 980
 981                 case ICMD_IINC:       /* ..., value  ==> ..., value + constant        */
 982                                       /* s1.localindex = variable, sx.val.i = constant*/
 983
 984                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 985                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 986
 987                         /* XXX implement me more efficiently */
 988                         ICONST(REG_ITMP2, iptr->sx.val.i);
 989                         M_IADD(s1, REG_ITMP2, d);
 990
 991                         emit_store_dst(jd, iptr, d);
 992                         break;
 993
 994
 995                 /* floating operations ************************************************/
 996
 997                 case ICMD_FNEG:       /* ..., value  ==> ..., - value                 */
 998
 999                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1000                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1001                         M_FMOVN(s1, d);
1002                         emit_store_dst(jd, iptr, d);
1003                         break;
1004
1005                 case ICMD_DNEG:       /* ..., value  ==> ..., - value                 */
1006
1007                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1008                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1009                         M_FMOVN(s1, d);
1010                         emit_store_dst(jd, iptr, d);
1011                         break;
1012
1013                 case ICMD_FADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
1014
1015                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1016                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1017                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1018                         M_FADD(s1, s2, d);
1019                         emit_store_dst(jd, iptr, d);
1020                         break;
1021
1022                 case ICMD_DADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
1023
1024                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1025                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1026                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1027                         M_DADD(s1, s2, d);
1028                         emit_store_dst(jd, iptr, d);
1029                         break;
1030
1031                 case ICMD_FSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
1032
1033                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1034                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1035                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1036                         M_FSUB(s1, s2, d);
1037                         emit_store_dst(jd, iptr, d);
1038                         break;
1039
1040                 case ICMD_DSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
1041
1042                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1043                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1044                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1045                         M_DSUB(s1, s2, d);
1046                         emit_store_dst(jd, iptr, d);
1047                         break;
1048
1049                 case ICMD_FMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1050
1051                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1052                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1053                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1054                         M_FMUL(s1, s2, d);
1055                         emit_store_dst(jd, iptr, d);
1056                         break;
1057
1058                 case ICMD_DMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1059
1060                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1061                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1062                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1063                         M_DMUL(s1, s2, d);
1064                         emit_store_dst(jd, iptr, d);
1065                         break;
1066
1067                 case ICMD_FDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1068
1069                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1070                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1071                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1072                         M_FDIV(s1, s2, d);
1073                         emit_store_dst(jd, iptr, d);
1074                         break;
1075
1076                 case ICMD_DDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1077
1078                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1079                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1080                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1081                         M_DDIV(s1, s2, d);
1082                         emit_store_dst(jd, iptr, d);
1083                         break;
1084
1085                 case ICMD_F2I:       /* ..., value  ==> ..., (int) value              */
1086                 case ICMD_D2I:
1087
1088                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1089                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1090                         M_CLR(d);
1091                         disp = dseg_addfloat(cd, 0.0);
1092                         M_FLD(REG_FTMP2, REG_PV, disp);
1093                         M_FCMPU(s1, REG_FTMP2);
1094                         M_BNAN(4);
1095                         disp = dseg_adds4(cd, 0);
1096                         M_CVTDL_C(s1, REG_FTMP1);
1097                         M_LDA(REG_ITMP1, REG_PV, disp);
1098                         M_STFIWX(REG_FTMP1, 0, REG_ITMP1);
1099                         M_ILD(d, REG_PV, disp);
1100                         emit_store_dst(jd, iptr, d);
1101                         break;
1102
1103                 case ICMD_F2D:       /* ..., value  ==> ..., (double) value           */
1104
1105                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1106                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1107                         M_FLTMOVE(s1, d);
1108                         emit_store_dst(jd, iptr, d);
1109                         break;
1110
1111                 case ICMD_D2F:       /* ..., value  ==> ..., (double) value           */
1112
1113                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1114                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1115                         M_CVTDF(s1, d);
1116                         emit_store_dst(jd, iptr, d);
1117                         break;
1118
1119                 case ICMD_FCMPL:      /* ..., val1, val2  ==> ..., val1 fcmpg val2    */
1120                 case ICMD_DCMPL:      /* == => 0, < => 1, > => -1                     */
1121
1122
1123                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1124                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1125                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1126                         M_FCMPU(s2, s1);
1127                         M_IADD_IMM(REG_ZERO, -1, d);
1128                         M_BNAN(4);
1129                         M_BGT(3);
1130                         M_IADD_IMM(REG_ZERO, 0, d);
1131                         M_BGE(1);
1132                         M_IADD_IMM(REG_ZERO, 1, d);
1133                         emit_store_dst(jd, iptr, d);
1134                         break;
1135
1136                 case ICMD_FCMPG:      /* ..., val1, val2  ==> ..., val1 fcmpl val2    */
1137                 case ICMD_DCMPG:      /* == => 0, < => 1, > => -1                     */
1138
1139                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1140                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1141                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1142                         M_FCMPU(s1, s2);
1143                         M_IADD_IMM(REG_ZERO, 1, d);
1144                         M_BNAN(4);
1145                         M_BGT(3);
1146                         M_IADD_IMM(REG_ZERO, 0, d);
1147                         M_BGE(1);
1148                         M_IADD_IMM(REG_ZERO, -1, d);
1149                         emit_store_dst(jd, iptr, d);
1150                         break;
1151
1152                 case ICMD_IF_FCMPEQ:    /* ..., value, value ==> ...                  */
1153                 case ICMD_IF_DCMPEQ:
1154
1155                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1156                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1157                         M_FCMPU(s1, s2);
1158                         M_BNAN(1);
1159                         M_BEQ(0);
1160                         codegen_addreference(cd, iptr->dst.block);
1161                         break;
1162
1163                 case ICMD_IF_FCMPNE:    /* ..., value, value ==> ...                  */
1164                 case ICMD_IF_DCMPNE:
1165
1166                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1167                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1168                         M_FCMPU(s1, s2);
1169                         M_BNAN(0);
1170                         codegen_addreference(cd, iptr->dst.block);
1171                         M_BNE(0);
1172                         codegen_addreference(cd, iptr->dst.block);
1173                         break;
1174
1175
1176                 case ICMD_IF_FCMPL_LT:  /* ..., value, value ==> ...                  */
1177                 case ICMD_IF_DCMPL_LT:
1178
1179                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1180                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1181                         M_FCMPU(s1, s2);
1182                         M_BNAN(0);
1183                         codegen_addreference(cd, iptr->dst.block);
1184                         M_BLT(0);
1185                         codegen_addreference(cd, iptr->dst.block);
1186                         break;
1187
1188                 case ICMD_IF_FCMPL_GT:  /* ..., value, value ==> ...                  */
1189                 case ICMD_IF_DCMPL_GT:
1190
1191                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1192                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1193                         M_FCMPU(s1, s2);
1194                         M_BNAN(1);
1195                         M_BGT(0);
1196                         codegen_addreference(cd, iptr->dst.block);
1197                         break;
1198
1199                 case ICMD_IF_FCMPL_LE:  /* ..., value, value ==> ...                  */
1200                 case ICMD_IF_DCMPL_LE:
1201
1202                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1203                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1204                         M_FCMPU(s1, s2);
1205                         M_BNAN(0);
1206                         codegen_addreference(cd, iptr->dst.block);
1207                         M_BLE(0);
1208                         codegen_addreference(cd, iptr->dst.block);
1209                         break;
1210
1211                 case ICMD_IF_FCMPL_GE:  /* ..., value, value ==> ...                  */
1212                 case ICMD_IF_DCMPL_GE:
1213
1214                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1215                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1216                         M_FCMPU(s1, s2);
1217                         M_BNAN(1);
1218                         M_BGE(0);
1219                         codegen_addreference(cd, iptr->dst.block);
1220                         break;
1221
1222                 case ICMD_IF_FCMPG_LT:  /* ..., value, value ==> ...                  */
1223                 case ICMD_IF_DCMPG_LT:
1224
1225                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1226                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1227                         M_FCMPU(s1, s2);
1228                         M_BNAN(1);
1229                         M_BLT(0);
1230                         codegen_addreference(cd, iptr->dst.block);
1231                         break;
1232
1233                 case ICMD_IF_FCMPG_GT:  /* ..., value, value ==> ...                  */
1234                 case ICMD_IF_DCMPG_GT:
1235
1236                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1237                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1238                         M_FCMPU(s1, s2);
1239                         M_BNAN(0);
1240                         codegen_addreference(cd, iptr->dst.block);
1241                         M_BGT(0);
1242                         codegen_addreference(cd, iptr->dst.block);
1243                         break;
1244
1245                 case ICMD_IF_FCMPG_LE:  /* ..., value, value ==> ...                  */
1246                 case ICMD_IF_DCMPG_LE:
1247
1248                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1249                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1250                         M_FCMPU(s1, s2);
1251                         M_BNAN(1);
1252                         M_BLE(0);
1253                         codegen_addreference(cd, iptr->dst.block);
1254                         break;
1255
1256                 case ICMD_IF_FCMPG_GE:  /* ..., value, value ==> ...                  */
1257                 case ICMD_IF_DCMPG_GE:
1258
1259                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1260                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1261                         M_FCMPU(s1, s2);
1262                         M_BNAN(0);
1263                         codegen_addreference(cd, iptr->dst.block);
1264                         M_BGE(0);
1265                         codegen_addreference(cd, iptr->dst.block);
1266                         break;
1267
1268
1269                 /* memory operations **************************************************/
1270
1271                 case ICMD_ARRAYLENGTH: /* ..., arrayref  ==> ..., length              */
1272
1273                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1274                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1275                         gen_nullptr_check(s1);
1276                         M_ILD(d, s1, OFFSET(java_arrayheader, size));
1277                         emit_store_dst(jd, iptr, d);
1278                         break;
1279
1280                 case ICMD_BALOAD:     /* ..., arrayref, index  ==> ..., value         */
1281
1282                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1283                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1284                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1285                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1286                                 gen_nullptr_check(s1);
1287                                 gen_bound_check;
1288                         }
1289                         M_IADD_IMM(s2, OFFSET(java_chararray, data[0]), REG_ITMP2);
1290                         M_LBZX(d, s1, REG_ITMP2);
1291                         M_BSEXT(d, d);
1292                         emit_store_dst(jd, iptr, d);
1293                         break;
1294
1295                 case ICMD_CALOAD:     /* ..., arrayref, index  ==> ..., value         */
1296
1297                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1298                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1299                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1300                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1301                                 gen_nullptr_check(s1);
1302                                 gen_bound_check;
1303                         }
1304                         M_SLL_IMM(s2, 1, REG_ITMP2);
1305                         M_IADD_IMM(REG_ITMP2, OFFSET(java_chararray, data[0]), REG_ITMP2);
1306                         M_LHAX(d, s1, REG_ITMP2);
1307                         emit_store_dst(jd, iptr, d);
1308                         break;
1309
1310                 case ICMD_SALOAD:     /* ..., arrayref, index  ==> ..., value         */
1311
1312                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1313                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1314                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1315                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1316                                 gen_nullptr_check(s1);
1317                                 gen_bound_check;
1318                         }
1319                         M_SLL_IMM(s2, 1, REG_ITMP2);
1320                         M_IADD_IMM(REG_ITMP2, OFFSET(java_shortarray, data[0]), REG_ITMP2);
1321                         M_LHAX(d, s1, REG_ITMP2);
1322                         emit_store_dst(jd, iptr, d);
1323                         break;
1324
1325                 case ICMD_IALOAD:     /* ..., arrayref, index  ==> ..., value         */
1326
1327                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1328                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1329                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1330                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1331                                 gen_nullptr_check(s1);
1332                                 gen_bound_check;
1333                         }
1334                         M_SLL_IMM(s2, 2, REG_ITMP2);
1335                         M_IADD_IMM(REG_ITMP2, OFFSET(java_intarray, data[0]), REG_ITMP2);
1336                         M_LWZX(d, s1, REG_ITMP2);
1337                         emit_store_dst(jd, iptr, d);
1338                         break;
1339
1340                 case ICMD_LALOAD:     /* ..., arrayref, index  ==> ..., value         */
1341
1342                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1343                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1344                         d = codegen_reg_of_dst(jd, iptr, PACK_REGS(REG_ITMP2, REG_ITMP1));
1345                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1346                                 gen_nullptr_check(s1);
1347                                 gen_bound_check;
1348                         }
1349                         M_SLL_IMM(s2, 3, REG_ITMP2);
1350                         M_IADD(s1, REG_ITMP2, REG_ITMP2);
1351                         M_LLD_INTERN(d, REG_ITMP2, OFFSET(java_longarray, data[0]));
1352                         emit_store_dst(jd, iptr, d);
1353                         break;
1354
1355                 case ICMD_FALOAD:     /* ..., arrayref, index  ==> ..., value         */
1356
1357                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1358                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1359                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1360                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1361                                 gen_nullptr_check(s1);
1362                                 gen_bound_check;
1363                         }
1364                         M_SLL_IMM(s2, 2, REG_ITMP2);
1365                         M_IADD_IMM(REG_ITMP2, OFFSET(java_floatarray, data[0]), REG_ITMP2);
1366                         M_LFSX(d, s1, REG_ITMP2);
1367                         emit_store_dst(jd, iptr, d);
1368                         break;
1369
1370                 case ICMD_DALOAD:     /* ..., arrayref, index  ==> ..., value         */
1371
1372                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1373                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1374                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1375                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1376                                 gen_nullptr_check(s1);
1377                                 gen_bound_check;
1378                         }
1379                         M_SLL_IMM(s2, 3, REG_ITMP2);
1380                         M_IADD_IMM(REG_ITMP2, OFFSET(java_doublearray, data[0]), REG_ITMP2);
1381                         M_LFDX(d, s1, REG_ITMP2);
1382                         emit_store_dst(jd, iptr, d);
1383                         break;
1384
1385                 case ICMD_AALOAD:     /* ..., arrayref, index  ==> ..., value         */
1386
1387                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1388                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1389                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1390                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1391                                 gen_nullptr_check(s1);
1392                                 gen_bound_check;
1393                         }
1394                         M_SLL_IMM(s2, 3, REG_ITMP2);
1395                         M_IADD_IMM(REG_ITMP2, OFFSET(java_objectarray, data[0]), REG_ITMP2);
1396                         M_ALDX(d, s1, REG_ITMP2);
1397                         emit_store_dst(jd, iptr, d);
1398                         break;
1399
1400
1401                 case ICMD_BASTORE:    /* ..., arrayref, index, value  ==> ...         */
1402
1403                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1404                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1405                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1406                                 gen_nullptr_check(s1);
1407                                 gen_bound_check;
1408                         }
1409                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1410                         M_IADD_IMM(s2, OFFSET(java_bytearray, data[0]), REG_ITMP2);
1411                         M_STBX(s3, s1, REG_ITMP2);
1412                         break;
1413
1414                 case ICMD_CASTORE:    /* ..., arrayref, index, value  ==> ...         */
1415
1416                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1417                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1418                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1419                                 gen_nullptr_check(s1);
1420                                 gen_bound_check;
1421                         }
1422                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1423                         M_SLL_IMM(s2, 1, REG_ITMP2);
1424                         M_IADD_IMM(REG_ITMP2, OFFSET(java_chararray, data[0]), REG_ITMP2);
1425                         M_STHX(s3, s1, REG_ITMP2);
1426                         break;
1427
1428                 case ICMD_SASTORE:    /* ..., arrayref, index, value  ==> ...         */
1429
1430                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1431                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1432                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1433                                 gen_nullptr_check(s1);
1434                                 gen_bound_check;
1435                         }
1436                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1437                         M_SLL_IMM(s2, 1, REG_ITMP2);
1438                         M_IADD_IMM(REG_ITMP2, OFFSET(java_shortarray, data[0]), REG_ITMP2);
1439                         M_STHX(s3, s1, REG_ITMP2);
1440                         break;
1441
1442                 case ICMD_IASTORE:    /* ..., arrayref, index, value  ==> ...         */
1443
1444                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1445                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1446                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1447                                 gen_nullptr_check(s1);
1448                                 gen_bound_check;
1449                         }
1450                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1451                         M_SLL_IMM(s2, 2, REG_ITMP2);
1452                         M_IADD_IMM(REG_ITMP2, OFFSET(java_intarray, data[0]), REG_ITMP2);
1453                         M_STWX(s3, s1, REG_ITMP2);
1454                         break;
1455
1456                 case ICMD_LASTORE:    /* ..., arrayref, index, value  ==> ...         */
1457
1458                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1459                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1460                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1461                                 gen_nullptr_check(s1);
1462                                 gen_bound_check;
1463                         }
1464                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1465                         M_SLL_IMM(s2, 3, REG_ITMP2);
1466                         M_IADD_IMM(REG_ITMP2, OFFSET(java_longarray, data[0]), REG_ITMP2);
1467                         M_LST(s3, s1, REG_ITMP2);
1468                         break;
1469
1470                 case ICMD_FASTORE:    /* ..., arrayref, index, value  ==> ...         */
1471
1472                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1473                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1474                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1475                                 gen_nullptr_check(s1);
1476                                 gen_bound_check;
1477                         }
1478                         s3 = emit_load_s3(jd, iptr, REG_FTMP3);
1479                         M_SLL_IMM(s2, 2, REG_ITMP2);
1480                         M_IADD_IMM(REG_ITMP2, OFFSET(java_floatarray, data[0]), REG_ITMP2);
1481                         M_STFSX(s3, s1, REG_ITMP2);
1482                         break;
1483
1484                 case ICMD_DASTORE:    /* ..., arrayref, index, value  ==> ...         */
1485
1486                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1487                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1488                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1489                                 gen_nullptr_check(s1);
1490                                 gen_bound_check;
1491                         }
1492                         s3 = emit_load_s3(jd, iptr, REG_FTMP3);
1493                         M_SLL_IMM(s2, 3, REG_ITMP2);
1494                         M_IADD_IMM(REG_ITMP2, OFFSET(java_doublearray, data[0]), REG_ITMP2);
1495                         M_STFDX(s3, s1, REG_ITMP2);
1496                         break;
1497
1498                 case ICMD_AASTORE:    /* ..., arrayref, index, value  ==> ...         */
1499
1500                         s1 = emit_load_s1(jd, iptr, rd->argintregs[0]);
1501                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1502                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1503                                 gen_nullptr_check(s1);
1504                                 gen_bound_check;
1505                         }
1506                         s3 = emit_load_s3(jd, iptr, rd->argintregs[1]);
1507
1508                         disp = dseg_addaddress(cd, BUILTIN_canstore);
1509                         M_ALD(REG_ITMP3, REG_PV, disp);
1510                         M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
1511                         M_MTCTR(REG_ITMP3);
1512
1513                         M_INTMOVE(s1, rd->argintregs[0]);
1514                         M_INTMOVE(s3, rd->argintregs[1]);
1515
1516                         M_JSR;
1517                         M_TST(REG_RESULT);
1518                         M_BEQ(0);
1519                         codegen_add_arraystoreexception_ref(cd);
1520
1521                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1522                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1523                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1524                         M_SLL_IMM(s2, 3, REG_ITMP2);
1525                         M_IADD_IMM(REG_ITMP2, OFFSET(java_objectarray, data[0]), REG_ITMP2);
1526                         M_ASTX(s3, s1, REG_ITMP2);
1527                         break;
1528
1529
1530                 case ICMD_GETSTATIC:  /* ...  ==> ..., value                          */
1531
1532                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1533                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1534
1535                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1536                                 disp = dseg_addaddress(cd, NULL);
1537
1538                                 codegen_addpatchref(cd, PATCHER_get_putstatic,
1539                                                                         iptr->sx.s23.s3.uf, disp);
1540
1541                                 if (opt_showdisassemble)
1542                                         M_NOP;
1543
1544                         } else {
1545                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1546
1547                                 fieldtype = fi->type;
1548                                 disp = dseg_addaddress(cd, &(fi->value));
1549
1550                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1551                                         codegen_addpatchref(cd, PATCHER_clinit, fi->class, disp);
1552
1553                                         if (opt_showdisassemble)
1554                                                 M_NOP;
1555                                 }
1556                         }
1557
1558                         M_ALD(REG_ITMP1, REG_PV, disp);
1559                         switch (fieldtype) {
1560                         case TYPE_INT:
1561                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1562                                 M_ILD_INTERN(d, REG_ITMP1, 0);
1563                                 break;
1564                         case TYPE_LNG:
1565                                 d = codegen_reg_of_dst(jd, iptr, PACK_REGS(REG_ITMP2, REG_ITMP1));
1566                                 M_ILD_INTERN(GET_LOW_REG(d), REG_ITMP1, 4);/* keep this order */
1567                                 M_ILD_INTERN(GET_HIGH_REG(d), REG_ITMP1, 0);/*keep this order */
1568                                 break;
1569                         case TYPE_ADR:
1570                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1571                                 M_ALD_INTERN(d, REG_ITMP1, 0);
1572                                 break;
1573                         case TYPE_FLT:
1574                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1575                                 M_FLD_INTERN(d, REG_ITMP1, 0);
1576                                 break;
1577                         case TYPE_DBL:
1578                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1579                                 M_DLD_INTERN(d, REG_ITMP1, 0);
1580                                 break;
1581                         }
1582                         emit_store_dst(jd, iptr, d);
1583                         break;
1584
1585                 case ICMD_PUTSTATIC:  /* ..., value  ==> ...                          */
1586
1587
1588                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1589                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1590
1591                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1592                                 disp = dseg_addaddress(cd, NULL);
1593
1594                                 codegen_addpatchref(cd, PATCHER_get_putstatic,
1595                                                                         iptr->sx.s23.s3.uf, disp);
1596
1597                                 if (opt_showdisassemble)
1598                                         M_NOP;
1599
1600                         } else {
1601                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1602
1603                                 fieldtype = fi->type;
1604                                 disp = dseg_addaddress(cd, &(fi->value));
1605
1606                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1607                                         codegen_addpatchref(cd, PATCHER_clinit, fi->class, disp);
1608
1609                                         if (opt_showdisassemble)
1610                                                 M_NOP;
1611                                 }
1612                         }
1613
1614                         M_ALD(REG_ITMP1, REG_PV, disp);
1615                         switch (fieldtype) {
1616                         case TYPE_INT:
1617                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1618                                 M_IST_INTERN(s1, REG_ITMP1, 0);
1619                                 break;
1620                         case TYPE_LNG:
1621                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1622                                 M_LST_INTERN(s1, REG_ITMP1, 0);
1623                                 break;
1624                         case TYPE_ADR:
1625                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1626                                 M_AST_INTERN(s1, REG_ITMP1, 0);
1627                                 break;
1628                         case TYPE_FLT:
1629                                 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1630                                 M_FST_INTERN(s1, REG_ITMP1, 0);
1631                                 break;
1632                         case TYPE_DBL:
1633                                 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1634                                 M_DST_INTERN(s1, REG_ITMP1, 0);
1635                                 break;
1636                         }
1637                         break;
1638
1639
1640                 case ICMD_GETFIELD:   /* ...  ==> ..., value                          */
1641
1642                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1643                         gen_nullptr_check(s1);
1644
1645                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1646                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1647
1648                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1649
1650                                 codegen_addpatchref(cd, PATCHER_get_putfield,
1651                                                                         iptr->sx.s23.s3.uf, 0);
1652
1653                                 if (opt_showdisassemble)
1654                                         M_NOP;
1655
1656                                 disp = 0;
1657
1658                         } else {
1659                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1660
1661                                 fieldtype = fi->type;
1662                                 disp = fi->offset;
1663                         }
1664
1665                         switch (fieldtype) {
1666                         case TYPE_INT:
1667                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1668                                 M_ILD(d, s1, disp);
1669                                 break;
1670                         case TYPE_LNG:
1671                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1672                                 M_LLD(d, s1, disp);
1673                                 break;
1674                         case TYPE_ADR:
1675                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1676                                 M_ALD(d, s1, disp);
1677                                 break;
1678                         case TYPE_FLT:
1679                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1680                                 M_FLD(d, s1, disp);
1681                                 break;
1682                         case TYPE_DBL:
1683                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1684                                 M_DLD(d, s1, disp);
1685                                 break;
1686                         }
1687                         emit_store_dst(jd, iptr, d);
1688                         break;
1689
1690                 case ICMD_PUTFIELD:   /* ..., value  ==> ...                          */
1691
1692                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1693                         gen_nullptr_check(s1);
1694
1695                         if (!IS_FLT_DBL_TYPE(fieldtype)) {
1696                                 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1697                         } else {
1698                                 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1699                         }
1700
1701                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1702                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1703
1704                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1705
1706                                 codegen_addpatchref(cd, PATCHER_get_putfield,
1707                                                                         iptr->sx.s23.s3.uf, 0);
1708
1709                                 if (opt_showdisassemble)
1710                                         M_NOP;
1711
1712                                 disp = 0;
1713
1714                         } else {
1715                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1716
1717                                 fieldtype = fi->type;
1718                                 disp = fi->offset;
1719                         }
1720
1721                         switch (fieldtype) {
1722                         case TYPE_INT:
1723                                 M_IST(s2, s1, disp);
1724                                 break;
1725                         case TYPE_LNG:
1726                                 M_LST(s2, s1, disp);
1727                                 break;
1728                         case TYPE_ADR:
1729                                 M_AST(s2, s1, disp);
1730                                 break;
1731                         case TYPE_FLT:
1732                                 M_FST(s2, s1, disp);
1733                                 break;
1734                         case TYPE_DBL:
1735                                 M_DST(s2, s1, disp);
1736                                 break;
1737                         }
1738                         break;
1739
1740
1741                 /* branch operations **************************************************/
1742
1743                 case ICMD_ATHROW:       /* ..., objectref ==> ... (, objectref)       */
1744
1745                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1746                         M_LNGMOVE(s1, REG_ITMP1_XPTR);
1747
1748 #ifdef ENABLE_VERIFIER
1749                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1750                                 codegen_addpatchref(cd, PATCHER_athrow_areturn,
1751                                                                         iptr->sx.s23.s2.uc, 0);
1752
1753                                 if (opt_showdisassemble)
1754                                         M_NOP;
1755                         }
1756 #endif /* ENABLE_VERIFIER */
1757
1758                         disp = dseg_addaddress(cd, asm_handle_exception);
1759                         M_ALD(REG_ITMP2, REG_PV, disp);
1760                         M_MTCTR(REG_ITMP2);
1761
1762                         if (jd->isleafmethod) M_MFLR(REG_ITMP3);         /* save LR        */
1763                         M_BL(0);                                        /* get current PC */
1764                         M_MFLR(REG_ITMP2_XPC);
1765                         if (jd->isleafmethod) M_MTLR(REG_ITMP3);         /* restore LR     */
1766                         M_RTS;                                          /* jump to CTR    */
1767
1768                         ALIGNCODENOP;
1769                         break;
1770
1771                 case ICMD_GOTO:         /* ... ==> ...                                */
1772                 case ICMD_RET:          /* ... ==> ...                                */
1773
1774                         M_BR(0);
1775                         codegen_addreference(cd, iptr->dst.block);
1776                         ALIGNCODENOP;
1777                         break;
1778
1779                 case ICMD_JSR:          /* ... ==> ...                                */
1780
1781                         if (jd->isleafmethod)
1782                                 M_MFLR(REG_ITMP2);
1783                         M_BL(0);
1784                         M_MFLR(REG_ITMP1);
1785                         M_IADD_IMM(REG_ITMP1, jd->isleafmethod ? 4*4 : 3*4, REG_ITMP1);
1786                         if (jd->isleafmethod)
1787                                 M_MTLR(REG_ITMP2);
1788                         M_BR(0);
1789                         codegen_addreference(cd, iptr->sx.s23.s3.jsrtarget.block);
1790                         break;
1791
1792                 case ICMD_IFNULL:       /* ..., value ==> ...                         */
1793
1794                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1795                         M_TST(s1);
1796                         M_BEQ(0);
1797                         codegen_addreference(cd, iptr->dst.block);
1798                         break;
1799
1800                 case ICMD_IFNONNULL:    /* ..., value ==> ...                         */
1801
1802                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1803                         M_TST(s1);
1804                         M_BNE(0);
1805                         codegen_addreference(cd, iptr->dst.block);
1806                         break;
1807
1808                 case ICMD_IFLT:
1809                 case ICMD_IFLE:
1810                 case ICMD_IFNE:
1811                 case ICMD_IFGT:
1812                 case ICMD_IFGE:
1813                 case ICMD_IFEQ:         /* ..., value ==> ...                         */
1814
1815                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1816                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767))
1817                                 M_CMPI(s1, iptr->sx.val.i);
1818                         else {
1819                                 ICONST(REG_ITMP2, iptr->sx.val.i);
1820                                 M_CMP(s1, REG_ITMP2);
1821                         }
1822                         switch (iptr->opc) {
1823                         case ICMD_IFLT:
1824                                 M_BLT(0);
1825                                 break;
1826                         case ICMD_IFLE:
1827                                 M_BLE(0);
1828                                 break;
1829                         case ICMD_IFNE:
1830                                 M_BNE(0);
1831                                 break;
1832                         case ICMD_IFGT:
1833                                 M_BGT(0);
1834                                 break;
1835                         case ICMD_IFGE:
1836                                 M_BGE(0);
1837                                 break;
1838                         case ICMD_IFEQ:
1839                                 M_BEQ(0);
1840                                 break;
1841                         }
1842                         codegen_addreference(cd, iptr->dst.block);
1843                         break;
1844
1845                 #if 0
1846                 case ICMD_IF_LEQ:       /* ..., value ==> ...                         */
1847
1848                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1849                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1850                         if (iptr->sx.val.l == 0) {
1851                                 M_OR_TST(s1, s2, REG_ITMP3);
1852                         } else if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
1853                                 M_XOR_IMM(s2, 0, REG_ITMP2);
1854                                 M_XOR_IMM(s1, iptr->sx.val.l & 0xffff, REG_ITMP1);
1855                                 M_OR_TST(REG_ITMP1, REG_ITMP2, REG_ITMP3);
1856                         } else {
1857                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1858                                 M_XOR(s1, REG_ITMP3, REG_ITMP1);
1859                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1860                                 M_XOR(s2, REG_ITMP3, REG_ITMP2);
1861                                 M_OR_TST(REG_ITMP1, REG_ITMP2, REG_ITMP3);
1862                         }
1863                         M_BEQ(0);
1864                         codegen_addreference(cd, iptr->dst.block);
1865                         break;
1866
1867                 case ICMD_IF_LLT:       /* ..., value ==> ...                         */
1868                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1869                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1870                         if (iptr->sx.val.l == 0) {
1871                                 /* if high word is less than zero, the whole long is too */
1872                                 M_CMPI(s2, 0);
1873                         } else if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
1874                                 M_CMPI(s2, 0);
1875                                 M_BLT(0);
1876                                 codegen_addreference(cd, iptr->dst.block);
1877                                 M_BGT(2);
1878                                 M_CMPUI(s1, iptr->sx.val.l & 0xffff);
1879                         } else {
1880                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1881                                 M_CMP(s2, REG_ITMP3);
1882                                 M_BLT(0);
1883                                 codegen_addreference(cd, iptr->dst.block);
1884                                 M_BGT(3);
1885                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1886                                 M_CMPU(s1, REG_ITMP3);
1887                         }
1888                         M_BLT(0);
1889                         codegen_addreference(cd, iptr->dst.block);
1890                         break;
1891
1892                 case ICMD_IF_LLE:       /* ..., value ==> ...                         */
1893
1894                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1895                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1896 /*                      if (iptr->sx.val.l == 0) { */
1897 /*                              M_OR(s1, s2, REG_ITMP3); */
1898 /*                              M_CMPI(REG_ITMP3, 0); */
1899
1900 /*                      } else  */
1901                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
1902                                 M_CMPI(s2, 0);
1903                                 M_BLT(0);
1904                                 codegen_addreference(cd, iptr->dst.block);
1905                                 M_BGT(2);
1906                                 M_CMPUI(s1, iptr->sx.val.l & 0xffff);
1907                         } else {
1908                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1909                                 M_CMP(s2, REG_ITMP3);
1910                                 M_BLT(0);
1911                                 codegen_addreference(cd, iptr->dst.block);
1912                                 M_BGT(3);
1913                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1914                                 M_CMPU(s1, REG_ITMP3);
1915                         }
1916                         M_BLE(0);
1917                         codegen_addreference(cd, iptr->dst.block);
1918                         break;
1919
1920                 case ICMD_IF_LNE:       /* ..., value ==> ...                         */
1921
1922                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1923                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1924                         if (iptr->sx.val.l == 0) {
1925                                 M_OR_TST(s1, s2, REG_ITMP3);
1926                         } else if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
1927                                 M_XOR_IMM(s2, 0, REG_ITMP2);
1928                                 M_XOR_IMM(s1, iptr->sx.val.l & 0xffff, REG_ITMP1);
1929                                 M_OR_TST(REG_ITMP1, REG_ITMP2, REG_ITMP3);
1930                         } else {
1931                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1932                                 M_XOR(s1, REG_ITMP3, REG_ITMP1);
1933                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1934                                 M_XOR(s2, REG_ITMP3, REG_ITMP2);
1935                                 M_OR_TST(REG_ITMP1, REG_ITMP2, REG_ITMP3);
1936                         }
1937                         M_BNE(0);
1938                         codegen_addreference(cd, iptr->dst.block);
1939                         break;
1940
1941                 case ICMD_IF_LGT:       /* ..., value ==> ...                         */
1942
1943                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1944                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1945 /*                      if (iptr->sx.val.l == 0) { */
1946 /*                              M_OR(s1, s2, REG_ITMP3); */
1947 /*                              M_CMPI(REG_ITMP3, 0); */
1948
1949 /*                      } else  */
1950                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
1951                                 M_CMPI(s2, 0);
1952                                 M_BGT(0);
1953                                 codegen_addreference(cd, iptr->dst.block);
1954                                 M_BLT(2);
1955                                 M_CMPUI(s1, iptr->sx.val.l & 0xffff);
1956                         } else {
1957                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1958                                 M_CMP(s2, REG_ITMP3);
1959                                 M_BGT(0);
1960                                 codegen_addreference(cd, iptr->dst.block);
1961                                 M_BLT(3);
1962                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1963                                 M_CMPU(s1, REG_ITMP3);
1964                         }
1965                         M_BGT(0);
1966                         codegen_addreference(cd, iptr->dst.block);
1967                         break;
1968
1969                 case ICMD_IF_LGE:       /* ..., value ==> ...                         */
1970
1971                         /* TODO, remove me */
1972                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1973                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1974                         if (iptr->sx.val.l == 0) {
1975                                 /* if high word is greater equal zero, the whole long is too */
1976                                 M_CMPI(s2, 0);
1977                         } else if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
1978                                 M_CMPI(s2, 0);
1979                                 M_BGT(0);
1980                                 codegen_addreference(cd, iptr->dst.block);
1981                                 M_BLT(2);
1982                                 M_CMPUI(s1, iptr->sx.val.l & 0xffff);
1983                         } else {
1984                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1985                                 M_CMP(s2, REG_ITMP3);
1986                                 M_BGT(0);
1987                                 codegen_addreference(cd, iptr->dst.block);
1988                                 M_BLT(3);
1989                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1990                                 M_CMPU(s1, REG_ITMP3);
1991                         }
1992                         M_BGE(0);
1993                         codegen_addreference(cd, iptr->dst.block);
1994                         break;
1995                 #endif
1996
1997                 case ICMD_IF_ICMPEQ:    /* ..., value, value ==> ...                  */
1998                 case ICMD_IF_ACMPEQ:    /* op1 = target JavaVM pc                     */
1999                 case ICMD_IF_LCMPEQ:
2000
2001                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2002                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2003                         M_CMP(s1, s2);
2004                         M_BEQ(0);
2005                         codegen_addreference(cd, iptr->dst.block);
2006                         break;
2007
2008                 case ICMD_IF_ICMPNE:    /* ..., value, value ==> ...                  */
2009                 case ICMD_IF_ACMPNE:    /* op1 = target JavaVM pc                     */
2010                 case ICMD_IF_LCMPNE:
2011
2012                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2013                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2014                         M_CMP(s1, s2);
2015                         M_BNE(0);
2016                         codegen_addreference(cd, iptr->dst.block);
2017                         break;
2018
2019
2020                 case ICMD_IF_ICMPLT:    /* ..., value, value ==> ...                  */
2021                 case ICMD_IF_LCMPLT:
2022
2023                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2024                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2025                         M_CMP(s1, s2);
2026                         M_BLT(0);
2027                         codegen_addreference(cd, iptr->dst.block);
2028                         break;
2029
2030                 case ICMD_IF_ICMPGT:    /* ..., value, value ==> ...                  */
2031                 case ICMD_IF_LCMPGT:
2032
2033                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2034                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2035                         M_CMP(s1, s2);
2036                         M_BGT(0);
2037                         codegen_addreference(cd, iptr->dst.block);
2038                         break;
2039
2040                 case ICMD_IF_ICMPLE:    /* ..., value, value ==> ...                  */
2041                 case ICMD_IF_LCMPLE:
2042
2043                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2044                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2045                         M_CMP(s1, s2);
2046                         M_BLE(0);
2047                         codegen_addreference(cd, iptr->dst.block);
2048                         break;
2049
2050                 case ICMD_IF_ICMPGE:    /* ..., value, value ==> ...                  */
2051                 case ICMD_IF_LCMPGE:
2052
2053                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2054                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2055                         M_CMP(s1, s2);
2056                         M_BGE(0);
2057                         codegen_addreference(cd, iptr->dst.block);
2058                         break;
2059
2060
2061                 case ICMD_LRETURN:      /* ..., retvalue ==> ...                      */
2062                 case ICMD_IRETURN:      /* ..., retvalue ==> ...                      */
2063
2064                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2065                         M_LNGMOVE(s1, REG_RESULT);
2066                         goto nowperformreturn;
2067
2068                 case ICMD_ARETURN:      /* ..., retvalue ==> ...                      */
2069
2070                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2071                         M_LNGMOVE(s1, REG_RESULT);
2072
2073 #ifdef ENABLE_VERIFIER
2074                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2075                                 codegen_addpatchref(cd, PATCHER_athrow_areturn,
2076                                                                         iptr->sx.s23.s2.uc, 0);
2077
2078                                 if (opt_showdisassemble)
2079                                         M_NOP;
2080                         }
2081 #endif /* ENABLE_VERIFIER */
2082
2083                         goto nowperformreturn;
2084
2085                 case ICMD_FRETURN:      /* ..., retvalue ==> ...                      */
2086                 case ICMD_DRETURN:
2087
2088                         s1 = emit_load_s1(jd, iptr, REG_FRESULT);
2089                         M_FLTMOVE(s1, REG_FRESULT);
2090                         goto nowperformreturn;
2091
2092                 case ICMD_RETURN:      /* ...  ==> ...                                */
2093
2094 nowperformreturn:
2095                         {
2096                         s4 i, p;
2097
2098                         p = stackframesize;
2099
2100                         /* call trace function */
2101
2102 #if !defined(NDEBUG)
2103                         if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
2104                                 emit_verbosecall_exit(jd);
2105                         }
2106 #endif
2107
2108 #if defined(ENABLE_THREADS)
2109                         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
2110                                 disp = dseg_addaddress(cd, LOCK_monitor_exit);
2111                                 M_ALD(REG_ITMP3, REG_PV, disp);
2112                                 M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
2113                                 M_MTCTR(REG_ITMP3);
2114
2115                                 /* we need to save the proper return value */
2116
2117                                 switch (iptr->opc) {
2118                                 case ICMD_LRETURN:
2119                                 case ICMD_IRETURN:
2120                                 case ICMD_ARETURN:
2121                                         /* fall through */
2122                                         M_LST(REG_RESULT , REG_SP, rd->memuse * 8 + 8);
2123                                         break;
2124                                 case ICMD_FRETURN:
2125                                         M_FST(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
2126                                         break;
2127                                 case ICMD_DRETURN:
2128                                         M_DST(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
2129                                         break;
2130                                 }
2131
2132                                 M_ALD(rd->argintregs[0], REG_SP, rd->memuse * 8);
2133                                 M_JSR;
2134
2135                                 /* and now restore the proper return value */
2136
2137                                 switch (iptr->opc) {
2138                                 case ICMD_LRETURN:
2139                                 case ICMD_IRETURN:
2140                                 case ICMD_ARETURN:
2141                                         /* fall through */
2142                                         M_LLD(REG_RESULT , REG_SP, rd->memuse * 8 + 8);
2143                                         break;
2144                                 case ICMD_FRETURN:
2145                                         M_FLD(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
2146                                         break;
2147                                 case ICMD_DRETURN:
2148                                         M_DLD(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
2149                                         break;
2150                                 }
2151                         }
2152 #endif
2153
2154                         /* restore return address                                         */
2155
2156                         if (!jd->isleafmethod) {
2157                                 /* ATTENTION: Don't use REG_ZERO (r0) here, as M_ALD
2158                                    may have a displacement overflow. */
2159
2160                                 M_ALD(REG_ITMP1, REG_SP, p * 8 + LA_LR_OFFSET);
2161                                 M_MTLR(REG_ITMP1);
2162                         }
2163
2164                         /* restore saved registers                                        */
2165
2166                         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
2167                                 p--; M_LLD(rd->savintregs[i], REG_SP, p * 8);
2168                         }
2169                         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
2170                                 p--; M_DLD(rd->savfltregs[i], REG_SP, p * 8);
2171                         }
2172
2173                         /* deallocate stack                                               */
2174
2175                         if (stackframesize)
2176                                 M_LDA(REG_SP, REG_SP, stackframesize * 8);
2177
2178                         M_RET;
2179                         ALIGNCODENOP;
2180                         }
2181                         break;
2182
2183
2184                 case ICMD_TABLESWITCH:  /* ..., index ==> ...                         */
2185                         {
2186                         s4 i, l;
2187                         branch_target_t *table;
2188
2189                         table = iptr->dst.table;
2190
2191                         l = iptr->sx.s23.s2.tablelow;
2192                         i = iptr->sx.s23.s3.tablehigh;
2193
2194                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2195                         if (l == 0) {
2196                                 M_INTMOVE(s1, REG_ITMP1);
2197                         } else if (l <= 32768) {
2198                                 M_LDA(REG_ITMP1, s1, -l);
2199                         } else {
2200                                 ICONST(REG_ITMP2, l);
2201                                 M_SUB(s1, REG_ITMP2, REG_ITMP1);
2202                         }
2203
2204                         /* number of targets */
2205                         i = i - l + 1;
2206
2207                         /* range check */
2208
2209                         M_CMPUI(REG_ITMP1, i - 1);
2210                         M_BGT(0);
2211                         codegen_addreference(cd, table[0].block);
2212
2213                         /* build jump table top down and use address of lowest entry */
2214
2215                         table += i;
2216
2217                         while (--i >= 0) {
2218                                 dseg_addtarget(cd, table->block);
2219                                 --table;
2220                                 }
2221                         }
2222
2223                         /* length of dataseg after last dseg_addtarget is used by load */
2224
2225                         M_SLL_IMM(REG_ITMP1, 2, REG_ITMP1);
2226                         M_IADD(REG_ITMP1, REG_PV, REG_ITMP2);
2227                         M_ALD(REG_ITMP2, REG_ITMP2, -(cd->dseglen));
2228                         M_MTCTR(REG_ITMP2);
2229                         M_RTS;
2230                         ALIGNCODENOP;
2231                         break;
2232
2233
2234                 case ICMD_LOOKUPSWITCH: /* ..., key ==> ...                           */
2235                         {
2236                         s4 i, val;
2237                         lookup_target_t *lookup;
2238
2239                         lookup = iptr->dst.lookup;
2240
2241                         i = iptr->sx.s23.s2.lookupcount;
2242
2243                         MCODECHECK((i<<2)+8);
2244                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2245                         while (--i >= 0) {
2246                                 val = lookup->value;
2247                                 if ((val >= -32768) && (val <= 32767)) {
2248                                         M_CMPI(s1, val);
2249                                 } else {
2250                                         a = dseg_adds4(cd, val);
2251                                         M_ILD(REG_ITMP2, REG_PV, a);
2252                                         M_CMP(s1, REG_ITMP2);
2253                                 }
2254                                 M_BEQ(0);
2255                                 codegen_addreference(cd, lookup->target.block);
2256                                 ++lookup;
2257                         }
2258
2259                         M_BR(0);
2260                         codegen_addreference(cd, iptr->sx.s23.s3.lookupdefault.block);
2261
2262                         ALIGNCODENOP;
2263                         break;
2264                         }
2265
2266
2267                 case ICMD_BUILTIN:      /* ..., [arg1, [arg2 ...]] ==> ...            */
2268
2269                         bte = iptr->sx.s23.s3.bte;
2270                         md = bte->md;
2271                         goto gen_method;
2272
2273                 case ICMD_INVOKESTATIC: /* ..., [arg1, [arg2 ...]] ==> ...            */
2274
2275                 case ICMD_INVOKESPECIAL:/* ..., objectref, [arg1, [arg2 ...]] ==> ... */
2276                 case ICMD_INVOKEVIRTUAL:/* op1 = arg count, val.a = method pointer    */
2277                 case ICMD_INVOKEINTERFACE:
2278
2279                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2280                                 md = iptr->sx.s23.s3.um->methodref->parseddesc.md;
2281                                 lm = NULL;
2282                         }
2283                         else {
2284                                 lm = iptr->sx.s23.s3.fmiref->p.method;
2285                                 md = lm->parseddesc;
2286                         }
2287
2288 gen_method:
2289                         s3 = md->paramcount;
2290
2291                         MCODECHECK((s3 << 1) + 64);
2292
2293                         /* copy arguments to registers or stack location */
2294
2295                         for (s3 = s3 - 1; s3 >= 0; s3--) {
2296                                 var = VAR(iptr->sx.s23.s2.args[s3]);
2297
2298                                 if (var->flags & PREALLOC)
2299                                         continue;
2300
2301                                 if (IS_INT_LNG_TYPE(var->type)) {
2302                                         if (!md->params[s3].inmemory) {
2303                                                 s1 = rd->argintregs[md->params[s3].regoff];
2304                                                 d = emit_load(jd, iptr, var, s1);
2305                                                 M_LNGMOVE(d, s1);
2306                                         } else {
2307                                                 d = emit_load(jd, iptr, var, REG_ITMP1);
2308                                                 M_LST(d, REG_SP, md->params[s3].regoff * 8);
2309                                         }
2310                                 } else {
2311                                         if (!md->params[s3].inmemory) {
2312                                                 s1 = rd->argfltregs[md->params[s3].regoff];
2313                                                 d = emit_load(jd, iptr, var, s1);
2314                                                 M_FLTMOVE(d, s1);
2315                                         } else {
2316                                                 d = emit_load(jd, iptr, var, REG_FTMP1);
2317                                                 if (IS_2_WORD_TYPE(var->type))
2318                                                         M_DST(d, REG_SP, md->params[s3].regoff * 8);
2319                                                 else
2320                                                         M_FST(d, REG_SP, md->params[s3].regoff * 8);
2321                                         }
2322                                 }
2323                         } /* end of for */
2324
2325                         switch (iptr->opc) {
2326                         case ICMD_BUILTIN:
2327                                 disp = dseg_addaddress(cd, bte->fp);
2328                                 d = md->returntype.type;
2329
2330                                 M_ALD(REG_PV, REG_PV, disp);    /* pointer to built-in-function descriptor */
2331                                 M_ALD(REG_ITMP1, REG_PV, 0);    /* function entry point address, what about TOC */
2332                                 M_MTCTR(REG_ITMP1);
2333                                 M_JSR;
2334
2335                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2336                                 M_MFLR(REG_ITMP1);
2337                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2338
2339
2340                                 if (INSTRUCTION_MUST_CHECK(iptr)) {
2341                                         M_CMPI(REG_RESULT, 0);
2342                                         M_BEQ(0);
2343                                         codegen_add_fillinstacktrace_ref(cd);
2344                                 }
2345                                 break;
2346
2347                         case ICMD_INVOKESPECIAL:
2348                                 gen_nullptr_check(rd->argintregs[0]);
2349                                 M_ILD(REG_ITMP1, rd->argintregs[0], 0); /* hardware nullptr   */
2350                                 /* fall through */
2351
2352                         case ICMD_INVOKESTATIC:
2353                                 if (lm == NULL) {
2354                                         unresolved_method *um = iptr->sx.s23.s3.um;
2355
2356                                         disp = dseg_addaddress(cd, NULL);
2357
2358                                         codegen_addpatchref(cd, PATCHER_invokestatic_special,
2359                                                                                 um, disp);
2360
2361                                         if (opt_showdisassemble)
2362                                                 M_NOP;
2363
2364                                         d = md->returntype.type;
2365
2366                                 } else {
2367                                         disp = dseg_addaddress(cd, lm->stubroutine);
2368                                         d = md->returntype.type;
2369                                 }
2370
2371                                 M_NOP;
2372                                 M_ALD(REG_PV, REG_PV, disp);
2373                                 M_MTCTR(REG_PV);
2374                                 M_JSR;
2375                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2376                                 M_MFLR(REG_ITMP1);
2377                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2378                                 break;
2379
2380                         case ICMD_INVOKEVIRTUAL:
2381                                 gen_nullptr_check(rd->argintregs[0]);
2382
2383                                 if (lm == NULL) {
2384                                         unresolved_method *um = iptr->sx.s23.s3.um;
2385
2386                                         codegen_addpatchref(cd, PATCHER_invokevirtual, um, 0);
2387
2388                                         if (opt_showdisassemble)
2389                                                 M_NOP;
2390
2391                                         s1 = 0;
2392                                         d = md->returntype.type;
2393
2394                                 } else {
2395                                         s1 = OFFSET(vftbl_t, table[0]) +
2396                                                 sizeof(methodptr) * lm->vftblindex;
2397                                         d = md->returntype.type;
2398                                 }
2399
2400                                 M_ALD(REG_METHODPTR, rd->argintregs[0],
2401                                           OFFSET(java_objectheader, vftbl));
2402                                 M_ALD(REG_PV, REG_METHODPTR, s1);
2403                                 M_MTCTR(REG_PV);
2404                                 M_JSR;
2405                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2406                                 M_MFLR(REG_ITMP1);
2407                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2408                                 break;
2409
2410                         case ICMD_INVOKEINTERFACE:
2411                                 gen_nullptr_check(rd->argintregs[0]);
2412
2413                                 if (lm == NULL) {
2414                                         unresolved_method *um = iptr->sx.s23.s3.um;
2415
2416                                         codegen_addpatchref(cd, PATCHER_invokeinterface, um, 0);
2417
2418                                         if (opt_showdisassemble)
2419                                                 M_NOP;
2420
2421                                         s1 = 0;
2422                                         s2 = 0;
2423                                         d = md->returntype.type;
2424
2425                                 } else {
2426                                         s1 = OFFSET(vftbl_t, interfacetable[0]) -
2427                                                 sizeof(methodptr*) * lm->class->index;
2428
2429                                         s2 = sizeof(methodptr) * (lm - lm->class->methods);
2430
2431                                         d = md->returntype.type;
2432                                 }
2433
2434                                 M_ALD(REG_METHODPTR, rd->argintregs[0],
2435                                           OFFSET(java_objectheader, vftbl));
2436                                 M_ALD(REG_METHODPTR, REG_METHODPTR, s1);
2437                                 M_ALD(REG_PV, REG_METHODPTR, s2);
2438                                 M_MTCTR(REG_PV);
2439                                 M_JSR;
2440                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2441                                 M_MFLR(REG_ITMP1);
2442                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2443                                 break;
2444                         }
2445
2446                         /* d contains return type */
2447
2448                         if (d != TYPE_VOID) {
2449                                 if (IS_INT_LNG_TYPE(d)) {
2450                                         s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2451                                         M_MOV(REG_RESULT, s1);
2452                                 } else {
2453                                         s1 = codegen_reg_of_dst(jd, iptr, REG_FRESULT);
2454                                         M_FLTMOVE(REG_FRESULT, s1);
2455                                 }
2456                                 emit_store_dst(jd, iptr, s1);
2457                         }
2458                         break;
2459
2460
2461                 case ICMD_CHECKCAST:  /* ..., objectref ==> ..., objectref            */
2462                                       /* val.a: (classinfo*) superclass               */
2463
2464                         /*  superclass is an interface:
2465                          *
2466                          *  OK if ((sub == NULL) ||
2467                          *         (sub->vftbl->interfacetablelength > super->index) &&
2468                          *         (sub->vftbl->interfacetable[-super->index] != NULL));
2469                          *
2470                          *  superclass is a class:
2471                          *
2472                          *  OK if ((sub == NULL) || (0
2473                          *         <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2474                          *         super->vftbl->diffvall));
2475                          */
2476
2477                         if (!(iptr->flags.bits & INS_FLAG_ARRAY)) {
2478                                 /* object type cast-check */
2479
2480                                 classinfo *super;
2481                                 vftbl_t   *supervftbl;
2482                                 s4         superindex;
2483
2484                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2485                                         super = NULL;
2486                                         superindex = 0;
2487                                         supervftbl = NULL;
2488                                 }
2489                                 else {
2490                                         super = iptr->sx.s23.s3.c.cls;
2491                                         superindex = super->index;
2492                                         supervftbl = super->vftbl;
2493                                 }
2494
2495 #if defined(ENABLE_THREADS)
2496                                 codegen_threadcritrestart(cd, cd->mcodeptr - cd->mcodebase);
2497 #endif
2498                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2499
2500                                 /* calculate interface checkcast code size */
2501
2502                                 s2 = 7;
2503                                 if (!super)
2504                                         s2 += (opt_showdisassemble ? 1 : 0);
2505
2506                                 /* calculate class checkcast code size */
2507
2508                                 s3 = 8 + (s1 == REG_ITMP1);
2509                                 if (!super)
2510                                         s3 += (opt_showdisassemble ? 1 : 0);
2511
2512                                 /* if class is not resolved, check which code to call */
2513
2514                                 if (!super) {
2515                                         M_TST(s1);
2516                                         M_BEQ(3 + (opt_showdisassemble ? 1 : 0) + s2 + 1 + s3);
2517
2518                                         disp = dseg_adds4(cd, 0);                     /* super->flags */
2519
2520                                         codegen_addpatchref(cd,
2521                                                                                 PATCHER_checkcast_instanceof_flags,
2522                                                                                 iptr->sx.s23.s3.c.ref,
2523                                                                                 disp);
2524
2525                                         if (opt_showdisassemble)
2526                                                 M_NOP;
2527
2528                                         M_ILD(REG_ITMP2, REG_PV, disp);
2529                                         M_AND_IMM(REG_ITMP2, ACC_INTERFACE, REG_ITMP2);
2530                                         M_BEQ(s2 + 1);
2531                                 }
2532
2533                                 /* interface checkcast code */
2534
2535                                 if (!super || (super->flags & ACC_INTERFACE)) {
2536                                         if (super) {
2537                                                 M_TST(s1);
2538                                                 M_BEQ(s2);
2539
2540                                         } else {
2541                                                 codegen_addpatchref(cd,
2542                                                                                         PATCHER_checkcast_instanceof_interface,
2543                                                                                         iptr->sx.s23.s3.c.ref,
2544                                                                                         0);
2545
2546                                                 if (opt_showdisassemble)
2547                                                         M_NOP;
2548                                         }
2549
2550                                         M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2551                                         M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, interfacetablelength));
2552                                         M_LDATST(REG_ITMP3, REG_ITMP3, -superindex);
2553                                         M_BLE(0);
2554                                         codegen_add_classcastexception_ref(cd, s1);     /*XXX s1?? */
2555                                         M_ALD(REG_ITMP3, REG_ITMP2,
2556                                                   OFFSET(vftbl_t, interfacetable[0]) -
2557                                                   superindex * sizeof(methodptr*));
2558                                         M_TST(REG_ITMP3);
2559                                         M_BEQ(0);
2560                                         codegen_add_classcastexception_ref(cd, s1);     /*XXX s1??*/
2561
2562                                         if (!super)
2563                                                 M_BR(s3);
2564                                 }
2565
2566                                 /* class checkcast code */
2567
2568                                 if (!super || !(super->flags & ACC_INTERFACE)) {
2569                                         disp = dseg_addaddress(cd, supervftbl);
2570
2571                                         if (super) {
2572                                                 M_TST(s1);
2573                                                 M_BEQ(s3);
2574
2575                                         } else {
2576                                                 codegen_addpatchref(cd, PATCHER_checkcast_class,
2577                                                                                         iptr->sx.s23.s3.c.ref,
2578                                                                                         disp);
2579
2580                                                 if (opt_showdisassemble)
2581                                                         M_NOP;
2582                                         }
2583
2584                                         M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2585 #if defined(ENABLE_THREADS)
2586                                         codegen_threadcritstart(cd, cd->mcodeptr - cd->mcodebase);
2587 #endif
2588                                         M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2589                                         M_ALD(REG_ITMP2, REG_PV, disp);
2590                                         if (s1 != REG_ITMP1) {
2591                                                 M_ILD(REG_ITMP1, REG_ITMP2, OFFSET(vftbl_t, baseval));
2592                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2593 #if defined(ENABLE_THREADS)
2594                                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2595 #endif
2596                                                 M_SUB(REG_ITMP3, REG_ITMP1, REG_ITMP3);
2597                                         } else {
2598                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, baseval));
2599                                                 M_SUB(REG_ITMP3, REG_ITMP2, REG_ITMP3);
2600                                                 M_ALD(REG_ITMP2, REG_PV, disp);
2601                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2602 #if defined(ENABLE_THREADS)
2603                                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2604 #endif
2605                                         }
2606                                         M_CMP(REG_ITMP3, REG_ITMP2);
2607                                         M_BGT(0);
2608                                         codegen_add_classcastexception_ref(cd, s1); /* XXX s1? */
2609                                 }
2610                                 d = codegen_reg_of_dst(jd, iptr, s1);
2611
2612                         } else {
2613                                 /* array type cast-check */
2614
2615                                 s1 = emit_load_s1(jd, iptr, rd->argintregs[0]);
2616                                 M_INTMOVE(s1, rd->argintregs[0]);
2617
2618                                 disp = dseg_addaddress(cd, iptr->sx.s23.s3.c.cls);
2619
2620                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2621                                         codegen_addpatchref(cd, PATCHER_builtin_arraycheckcast,
2622                                                                                 iptr->sx.s23.s3.c.ref,
2623                                                                                 disp);
2624
2625                                         if (opt_showdisassemble)
2626                                                 M_NOP;
2627                                 }
2628
2629                                 M_ALD(rd->argintregs[1], REG_PV, disp);
2630                                 disp = dseg_addaddress(cd, BUILTIN_arraycheckcast);
2631                                 M_ALD(REG_ITMP2, REG_PV, disp);
2632                                 M_ALD(REG_ITMP2, REG_ITMP2, 0); /* TOC */
2633                                 M_MTCTR(REG_ITMP2);
2634                                 M_JSR;
2635                                 M_TST(REG_RESULT);
2636                                 M_BEQ(0);
2637                                 codegen_add_classcastexception_ref(cd, s1); /* XXX s1? */
2638
2639                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2640                                 d = codegen_reg_of_dst(jd, iptr, s1);
2641                         }
2642                         M_INTMOVE(s1, d);
2643                         emit_store_dst(jd, iptr, d);
2644                         break;
2645
2646                 case ICMD_INSTANCEOF: /* ..., objectref ==> ..., intresult            */
2647                                       /* val.a: (classinfo*) superclass               */
2648
2649                         /*  superclass is an interface:
2650                          *
2651                          *  return (sub != NULL) &&
2652                          *         (sub->vftbl->interfacetablelength > super->index) &&
2653                          *         (sub->vftbl->interfacetable[-super->index] != NULL);
2654                          *
2655                          *  superclass is a class:
2656                          *
2657                          *  return ((sub != NULL) && (0
2658                          *          <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2659                          *          super->vftbl->diffvall));
2660                          */
2661
2662                         {
2663                         classinfo *super;
2664                         vftbl_t   *supervftbl;
2665                         s4         superindex;
2666
2667                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2668                                 super = NULL;
2669                                 superindex = 0;
2670                                 supervftbl = NULL;
2671                         }
2672                         else {
2673                                 super = iptr->sx.s23.s3.c.cls;
2674                                 superindex = super->index;
2675                                 supervftbl = super->vftbl;
2676                         }
2677
2678 #if defined(ENABLE_THREADS)
2679             codegen_threadcritrestart(cd, cd->mcodeptr - cd->mcodebase);
2680 #endif
2681                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2682                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
2683                         if (s1 == d) {
2684                                 M_MOV(s1, REG_ITMP1);
2685                                 s1 = REG_ITMP1;
2686                         }
2687
2688                         /* calculate interface instanceof code size */
2689
2690                         s2 = 8;
2691                         if (!super)
2692                                 s2 += (opt_showdisassemble ? 1 : 0);
2693
2694                         /* calculate class instanceof code size */
2695
2696                         s3 = 10;
2697                         if (!super)
2698                                 s3 += (opt_showdisassemble ? 1 : 0);
2699
2700                         M_CLR(d);
2701
2702                         /* if class is not resolved, check which code to call */
2703
2704                         if (!super) {
2705                                 M_TST(s1);
2706                                 M_BEQ(3 + (opt_showdisassemble ? 1 : 0) + s2 + 1 + s3);
2707
2708                                 disp = dseg_adds4(cd, 0);                     /* super->flags */
2709
2710                                 codegen_addpatchref(cd, PATCHER_checkcast_instanceof_flags,
2711                                                                         iptr->sx.s23.s3.c.ref, disp);
2712
2713                                 if (opt_showdisassemble)
2714                                         M_NOP;
2715
2716                                 M_ILD(REG_ITMP3, REG_PV, disp);
2717                                 M_AND_IMM(REG_ITMP3, ACC_INTERFACE, REG_ITMP3);
2718                                 M_BEQ(s2 + 1);
2719                         }
2720
2721                         /* interface instanceof code */
2722
2723                         if (!super || (super->flags & ACC_INTERFACE)) {
2724                                 if (super) {
2725                                         M_TST(s1);
2726                                         M_BEQ(s2);
2727
2728                                 } else {
2729                                         codegen_addpatchref(cd,
2730                                                                                 PATCHER_checkcast_instanceof_interface,
2731                                                                                 iptr->sx.s23.s3.c.ref, 0);
2732
2733                                         if (opt_showdisassemble)
2734                                                 M_NOP;
2735                                 }
2736
2737                                 M_ALD(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
2738                                 M_ILD(REG_ITMP3, REG_ITMP1, OFFSET(vftbl_t, interfacetablelength));
2739                                 M_LDATST(REG_ITMP3, REG_ITMP3, -superindex);
2740                                 M_BLE(4);
2741                                 M_ALD(REG_ITMP1, REG_ITMP1,
2742                                           OFFSET(vftbl_t, interfacetable[0]) -
2743                                           superindex * sizeof(methodptr*));
2744                                 M_TST(REG_ITMP1);
2745                                 M_BEQ(1);
2746                                 M_IADD_IMM(REG_ZERO, 1, d);
2747
2748                                 if (!super)
2749                                         M_BR(s3);
2750                         }
2751
2752                         /* class instanceof code */
2753
2754                         if (!super || !(super->flags & ACC_INTERFACE)) {
2755                                 disp = dseg_addaddress(cd, supervftbl);
2756
2757                                 if (super) {
2758                                         M_TST(s1);
2759                                         M_BEQ(s3);
2760
2761                                 } else {
2762                                         codegen_addpatchref(cd, PATCHER_instanceof_class,
2763                                                                                 iptr->sx.s23.s3.c.ref,
2764                                                                                 disp);
2765
2766                                         if (opt_showdisassemble) {
2767                                                 M_NOP;
2768                                         }
2769                                 }
2770
2771                                 M_ALD(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
2772                                 M_ALD(REG_ITMP2, REG_PV, disp);
2773 #if defined(ENABLE_THREADS)
2774                                 codegen_threadcritstart(cd, cd->mcodeptr - cd->mcodebase);
2775 #endif
2776                                 M_ILD(REG_ITMP1, REG_ITMP1, OFFSET(vftbl_t, baseval));
2777                                 M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2778                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2779 #if defined(ENABLE_THREADS)
2780                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2781 #endif
2782                                 M_SUB(REG_ITMP1, REG_ITMP3, REG_ITMP1);
2783                                 M_CMPU(REG_ITMP1, REG_ITMP2);
2784                                 M_CLR(d);
2785                                 M_BGT(1);
2786                                 M_IADD_IMM(REG_ZERO, 1, d);
2787                         }
2788                         emit_store_dst(jd, iptr, d);
2789                         }
2790                         break;
2791
2792                 case ICMD_MULTIANEWARRAY:/* ..., cnt1, [cnt2, ...] ==> ..., arrayref  */
2793
2794                         /* check for negative sizes and copy sizes to stack if necessary  */
2795
2796                         MCODECHECK((iptr->s1.argcount << 1) + 64);
2797
2798                         for (s1 = iptr->s1.argcount; --s1 >= 0; ) {
2799
2800                                 var = VAR(iptr->sx.s23.s2.args[s1]);
2801
2802                                 /* copy SAVEDVAR sizes to stack */
2803
2804                                 if (!(var->flags & PREALLOC)) {
2805                                         s2 = emit_load(jd, iptr, var, REG_ITMP1);
2806 #if defined(__DARWIN__)
2807                                         M_IST(s2, REG_SP, LA_SIZE + (s1 + INT_ARG_CNT) * 4);
2808 #else
2809                                         M_IST(s2, REG_SP, LA_SIZE + (s1 + 3) * 4);
2810 #endif
2811                                 }
2812                         }
2813
2814                         /* a0 = dimension count */
2815
2816                         ICONST(rd->argintregs[0], iptr->s1.argcount);
2817
2818                         /* is patcher function set? */
2819
2820                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2821                                 disp = dseg_addaddress(cd, NULL);
2822
2823                                 codegen_addpatchref(cd, PATCHER_builtin_multianewarray,
2824                                                                         iptr->sx.s23.s3.c.ref, disp);
2825
2826                                 if (opt_showdisassemble)
2827                                         M_NOP;
2828
2829                         } else {
2830                                 disp = dseg_addaddress(cd, iptr->sx.s23.s3.c.cls);
2831                         }
2832
2833                         /* a1 = arraydescriptor */
2834
2835                         M_ALD(rd->argintregs[1], REG_PV, disp);
2836
2837                         /* a2 = pointer to dimensions = stack pointer */
2838
2839 #if defined(__DARWIN__)
2840                         M_LDA(rd->argintregs[2], REG_SP, LA_SIZE + INT_ARG_CNT * 4);
2841 #else
2842                         M_LDA(rd->argintregs[2], REG_SP, LA_SIZE + 3 * 4);
2843 #endif
2844
2845                         disp = dseg_addaddress(cd, BUILTIN_multianewarray);
2846                         M_ALD(REG_ITMP3, REG_PV, disp);
2847                         M_MTCTR(REG_ITMP3);
2848                         M_JSR;
2849
2850                         /* check for exception before result assignment */
2851
2852                         M_CMPI(REG_RESULT, 0);
2853                         M_BEQ(0);
2854                         codegen_add_fillinstacktrace_ref(cd);
2855
2856                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2857                         M_INTMOVE(REG_RESULT, d);
2858                         emit_store_dst(jd, iptr, d);
2859                         break;
2860
2861                 default:
2862                         *exceptionptr =
2863                                 new_internalerror("Unknown ICMD %d during code generation",
2864                                                                   iptr->opc);
2865                         return false;
2866         } /* switch */
2867
2868         } /* for instruction */
2869
2870         } /* if (bptr -> flags >= BBREACHED) */
2871         } /* for basic block */
2872
2873         dseg_createlinenumbertable(cd);
2874
2875
2876         /* generate exception and patcher stubs */
2877
2878         {
2879                 exceptionref *eref;
2880                 patchref     *pref;
2881                 u4            mcode;
2882                 u1           *savedmcodeptr;
2883                 u1           *tmpmcodeptr;
2884
2885                 savedmcodeptr = NULL;
2886
2887                 /* generate exception stubs */
2888
2889                 for (eref = cd->exceptionrefs; eref != NULL; eref = eref->next) {
2890                         gen_resolvebranch(cd->mcodebase + eref->branchpos,
2891                                                           eref->branchpos, cd->mcodeptr - cd->mcodebase);
2892
2893                         MCODECHECK(100);
2894
2895                         /* Check if the exception is an
2896                            ArrayIndexOutOfBoundsException.  If so, move index register
2897                            into REG_ITMP1. */
2898
2899                         if (eref->reg != -1)
2900                                 M_MOV(eref->reg, REG_ITMP1);
2901
2902                         /* calcuate exception address */
2903
2904                         M_LDA(REG_ITMP2_XPC, REG_PV, eref->branchpos - 4);
2905
2906                         /* move function to call into REG_ITMP3 */
2907
2908                         disp = dseg_addaddress(cd, eref->function);
2909                         M_ALD(REG_ITMP3, REG_PV, disp);
2910                         M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
2911
2912                         if (savedmcodeptr != NULL) {
2913                                 disp = ((u4 *) savedmcodeptr) - (((u4 *) cd->mcodeptr) + 1);
2914                                 M_BR(disp);
2915
2916                         } else {
2917                                 savedmcodeptr = cd->mcodeptr;
2918
2919                                 if (jd->isleafmethod) {
2920                                         M_MFLR(REG_ZERO);
2921                                         M_AST(REG_ZERO, REG_SP, stackframesize * 8 + LA_LR_OFFSET);
2922                                 }
2923
2924                                 M_MOV(REG_PV, rd->argintregs[0]);
2925                                 M_MOV(REG_SP, rd->argintregs[1]);
2926
2927                                 if (jd->isleafmethod)
2928                                         M_MOV(REG_ZERO, rd->argintregs[2]);
2929                                 else
2930                                         M_ALD(rd->argintregs[2],
2931                                                   REG_SP, stackframesize * 8 + LA_LR_OFFSET);
2932
2933                                 M_MOV(REG_ITMP2_XPC, rd->argintregs[3]);
2934                                 M_MOV(REG_ITMP1, rd->argintregs[4]);
2935
2936                                 M_STDU(REG_SP, REG_SP, -(LA_SIZE + 6 * 8));
2937                                 M_AST(REG_ITMP2_XPC, REG_SP, LA_SIZE + 5 * 8);
2938
2939                                 M_MTCTR(REG_ITMP3);
2940                                 M_JSR;
2941                                 M_MOV(REG_RESULT, REG_ITMP1_XPTR);
2942
2943                                 M_ALD(REG_ITMP2_XPC, REG_SP, LA_SIZE + 5 * 8);
2944                                 M_LADD_IMM(REG_SP, LA_SIZE + 6 * 8, REG_SP);
2945
2946                                 if (jd->isleafmethod) {
2947                                         /* XXX FIXME: REG_ZERO can cause problems here! */
2948                                         assert(stackframesize * 8 <= 32767);
2949
2950                                         M_ALD(REG_ZERO, REG_SP, stackframesize * 8 + LA_LR_OFFSET);
2951                                         M_MTLR(REG_ZERO);
2952                                 }
2953
2954                                 disp = dseg_addaddress(cd, asm_handle_exception);
2955                                 M_ALD(REG_ITMP3, REG_PV, disp);
2956                                 M_MTCTR(REG_ITMP3);
2957                                 M_RTS;
2958                         }
2959                 }
2960
2961
2962                 /* generate code patching stub call code */
2963
2964                 for (pref = cd->patchrefs; pref != NULL; pref = pref->next) {
2965                         /* check code segment size */
2966
2967                         MCODECHECK(16);
2968
2969                         /* Get machine code which is patched back in later. The
2970                            call is 1 instruction word long. */
2971
2972                         tmpmcodeptr = (u1 *) (cd->mcodebase + pref->branchpos);
2973
2974                         mcode = *((u4 *) tmpmcodeptr);
2975
2976                         /* Patch in the call to call the following code (done at
2977                            compile time). */
2978
2979                         savedmcodeptr = cd->mcodeptr;   /* save current mcodeptr          */
2980                         cd->mcodeptr  = tmpmcodeptr;    /* set mcodeptr to patch position */
2981
2982                         disp = ((u4 *) savedmcodeptr) - (((u4 *) tmpmcodeptr) + 1);
2983                         M_BR(disp);
2984
2985                         cd->mcodeptr = savedmcodeptr;   /* restore the current mcodeptr   */
2986
2987                         /* create stack frame - keep stack 16-byte aligned */
2988
2989                         M_AADD_IMM(REG_SP, -8 * 8, REG_SP);
2990
2991                         /* calculate return address and move it onto the stack */
2992
2993                         M_LDA(REG_ITMP3, REG_PV, pref->branchpos);
2994                         M_AST_INTERN(REG_ITMP3, REG_SP, 5 * 8);
2995
2996                         /* move pointer to java_objectheader onto stack */
2997
2998 #if defined(ENABLE_THREADS)
2999                         /* order reversed because of data segment layout */
3000
3001                         (void) dseg_addaddress(cd, NULL);                         /* flcword    */
3002                         (void) dseg_addaddress(cd, lock_get_initial_lock_word()); /* monitorPtr */
3003                         disp = dseg_addaddress(cd, NULL);                         /* vftbl      */
3004
3005                         M_LDA(REG_ITMP3, REG_PV, disp);
3006                         M_AST_INTERN(REG_ITMP3, REG_SP, 4 * 8);
3007 #else
3008                         /* do nothing */
3009 #endif
3010
3011                         /* move machine code onto stack */
3012
3013                         disp = dseg_adds4(cd, mcode);
3014                         M_ILD(REG_ITMP3, REG_PV, disp);
3015                         M_IST_INTERN(REG_ITMP3, REG_SP, 3 * 8);
3016
3017                         /* move class/method/field reference onto stack */
3018
3019                         disp = dseg_addaddress(cd, pref->ref);
3020                         M_ALD(REG_ITMP3, REG_PV, disp);
3021                         M_AST_INTERN(REG_ITMP3, REG_SP, 2 * 8);
3022
3023                         /* move data segment displacement onto stack */
3024
3025                         disp = dseg_addaddress(cd, pref->disp);
3026                         M_LLD(REG_ITMP3, REG_PV, disp);
3027                         M_IST_INTERN(REG_ITMP3, REG_SP, 1 * 8);
3028
3029                         /* move patcher function pointer onto stack */
3030
3031                         disp = dseg_addaddress(cd, pref->patcher);
3032                         M_ALD(REG_ITMP3, REG_PV, disp);
3033                         M_AST_INTERN(REG_ITMP3, REG_SP, 0 * 8);
3034
3035                         disp = dseg_addaddress(cd, asm_patcher_wrapper);
3036                         M_ALD(REG_ITMP3, REG_PV, disp);
3037                         M_MTCTR(REG_ITMP3);
3038                         M_RTS;
3039                 }
3040
3041                 /* generate replacement-out stubs */
3042
3043 #if 0
3044                 {
3045                         int i;
3046
3047                         replacementpoint = jd->code->rplpoints;
3048
3049                         for (i = 0; i < jd->code->rplpointcount; ++i, ++replacementpoint) {
3050                                 /* check code segment size */
3051
3052                                 MCODECHECK(100);
3053
3054                                 /* note start of stub code */
3055
3056                                 replacementpoint->outcode = (u1 *) (cd->mcodeptr - cd->mcodebase);
3057
3058                                 /* make machine code for patching */
3059
3060                                 tmpmcodeptr  = cd->mcodeptr;
3061                                 cd->mcodeptr = (u1 *) &(replacementpoint->mcode) + 1 /* big-endian */;
3062
3063                                 disp = (ptrint)((s4*)replacementpoint->outcode - (s4*)replacementpoint->pc) - 1;
3064                                 M_BR(disp);
3065
3066                                 cd->mcodeptr = tmpmcodeptr;
3067
3068                                 /* create stack frame - keep 16-byte aligned */
3069
3070                                 M_AADD_IMM(REG_SP, -4 * 4, REG_SP);
3071
3072                                 /* push address of `rplpoint` struct */
3073
3074                                 disp = dseg_addaddress(cd, replacementpoint);
3075                                 M_ALD(REG_ITMP3, REG_PV, disp);
3076                                 M_AST_INTERN(REG_ITMP3, REG_SP, 0 * 4);
3077
3078                                 /* jump to replacement function */
3079
3080                                 disp = dseg_addaddress(cd, asm_replacement_out);
3081                                 M_ALD(REG_ITMP3, REG_PV, disp);
3082                                 M_MTCTR(REG_ITMP3);
3083                                 M_RTS;
3084                         }
3085                 }
3086 #endif
3087         }
3088
3089         codegen_finish(jd);
3090
3091         /* everything's ok */
3092
3093         return true;
3094 }
3095
3096
3097 /* createcompilerstub **********************************************************
3098
3099    Creates a stub routine which calls the compiler.
3100
3101 *******************************************************************************/
3102
3103 #define COMPILERSTUB_DATASIZE    3 * SIZEOF_VOID_P
3104 #define COMPILERSTUB_CODESIZE    4 * 4
3105
3106 #define COMPILERSTUB_SIZE        COMPILERSTUB_DATASIZE + COMPILERSTUB_CODESIZE
3107
3108
3109 u1 *createcompilerstub(methodinfo *m)
3110 {
3111         u1          *s;                     /* memory to hold the stub            */
3112         ptrint      *d;
3113         codeinfo    *code;
3114         codegendata *cd;
3115         s4           dumpsize;
3116
3117         s = CNEW(u1, COMPILERSTUB_SIZE);
3118
3119         /* set data pointer and code pointer */
3120
3121         d = (ptrint *) s;
3122         s = s + COMPILERSTUB_DATASIZE;
3123
3124         /* mark start of dump memory area */
3125
3126         dumpsize = dump_size();
3127
3128         cd = DNEW(codegendata);
3129         cd->mcodeptr = s;
3130
3131         /* Store the codeinfo pointer in the same place as in the
3132            methodheader for compiled methods. */
3133
3134         code = code_codeinfo_new(m);
3135
3136         d[0] = (ptrint) asm_call_jit_compiler;
3137         d[1] = (ptrint) m;
3138         d[2] = (ptrint) code;
3139
3140         M_ALD_INTERN(REG_ITMP1, REG_PV, -2 * SIZEOF_VOID_P);
3141         M_ALD_INTERN(REG_PV, REG_PV, -3 * SIZEOF_VOID_P);
3142         M_MTCTR(REG_PV);
3143         M_RTS;
3144
3145         md_cacheflush((u1 *) d, COMPILERSTUB_SIZE);
3146
3147 #if defined(ENABLE_STATISTICS)
3148         if (opt_stat)
3149                 count_cstub_len += COMPILERSTUB_SIZE;
3150 #endif
3151
3152         /* release dump area */
3153
3154         dump_release(dumpsize);
3155
3156         return s;
3157 }
3158
3159
3160 /* createnativestub ************************************************************
3161
3162    Creates a stub routine which calls a native method.
3163
3164 *******************************************************************************/
3165
3166 u1 *createnativestub(functionptr f, jitdata *jd, methoddesc *nmd)
3167 {
3168         methodinfo   *m;
3169         codeinfo     *code;
3170         codegendata  *cd;
3171         registerdata *rd;
3172         s4            stackframesize;       /* size of stackframe if needed       */
3173         methoddesc   *md;
3174         s4            nativeparams;
3175         s4            i, j;                 /* count variables                    */
3176         s4            t;
3177         s4            s1, s2, disp;
3178         s4            funcdisp;
3179
3180         /* get required compiler data */
3181
3182         m    = jd->m;
3183         code = jd->code;
3184         cd   = jd->cd;
3185         rd   = jd->rd;
3186
3187         /* set some variables */
3188
3189         md = m->parseddesc;
3190         nativeparams = (m->flags & ACC_STATIC) ? 2 : 1;
3191
3192         /* calculate stackframe size */
3193
3194         stackframesize =
3195                 sizeof(stackframeinfo) / SIZEOF_VOID_P +
3196                 sizeof(localref_table) / SIZEOF_VOID_P +
3197                 4 +                            /* 4 stackframeinfo arguments (darwin)*/
3198                 nmd->paramcount  +
3199                 nmd->memuse;
3200
3201         stackframesize = (stackframesize + 3) & ~3; /* keep stack 16-byte aligned */
3202
3203         /* create method header */
3204
3205         (void) dseg_addaddress(cd, code);                      /* CodeinfoPointer */
3206         (void) dseg_adds4(cd, stackframesize * 8);             /* FrameSize       */
3207         (void) dseg_adds4(cd, 0);                              /* IsSync          */
3208         (void) dseg_adds4(cd, 0);                              /* IsLeaf          */
3209         (void) dseg_adds4(cd, 0);                              /* IntSave         */
3210         (void) dseg_adds4(cd, 0);                              /* FltSave         */
3211         (void) dseg_addlinenumbertablesize(cd);
3212         (void) dseg_adds4(cd, 0);                              /* ExTableSize     */
3213
3214         /* generate code */
3215
3216         M_MFLR(REG_ZERO);
3217         M_AST_INTERN(REG_ZERO, REG_SP, LA_LR_OFFSET);
3218         M_STDU(REG_SP, REG_SP, -(stackframesize * 8));
3219
3220 #if !defined(NDEBUG)
3221         if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
3222                 emit_verbosecall_enter(jd);
3223         }
3224 #endif
3225         /* get function address (this must happen before the stackframeinfo) */
3226
3227         funcdisp = dseg_addaddress(cd, f);
3228
3229 #if !defined(WITH_STATIC_CLASSPATH)
3230         if (f == NULL) {
3231                 codegen_addpatchref(cd, PATCHER_resolve_native, m, funcdisp);
3232
3233                 if (opt_showdisassemble)
3234                         M_NOP;
3235         }
3236 #endif
3237
3238         /* save integer and float argument registers */
3239
3240         j = 0;
3241
3242         for (i = 0; i < md->paramcount; i++) {
3243                 t = md->paramtypes[i].type;
3244
3245                 if (IS_INT_LNG_TYPE(t)) {
3246                         if (!md->params[i].inmemory) {
3247                                 s1 = md->params[i].regoff;
3248                                 M_LST(rd->argintregs[s1], REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + j * 8);
3249                                 j++;
3250                         }
3251                 }
3252         }
3253
3254         for (i = 0; i < md->paramcount; i++) {
3255                 if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
3256                         if (!md->params[i].inmemory) {
3257                                 s1 = md->params[i].regoff;
3258                                 M_DST(rd->argfltregs[s1], REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + j * 8);
3259                                 j++;
3260                         }
3261                 }
3262         }
3263
3264         /* create native stack info */
3265
3266         M_AADD_IMM(REG_SP, stackframesize * 8, rd->argintregs[0]);
3267         M_MOV(REG_PV, rd->argintregs[1]);
3268         M_AADD_IMM(REG_SP, stackframesize * 8, rd->argintregs[2]);
3269         M_ALD(rd->argintregs[3], REG_SP, stackframesize * 8 + LA_LR_OFFSET);
3270         disp = dseg_addaddress(cd, codegen_start_native_call);
3271
3272         M_ALD(REG_ITMP1, REG_PV, disp);
3273         M_ALD(REG_ITMP1, REG_ITMP1, 0);         /* TOC */
3274         M_MTCTR(REG_ITMP1);
3275         M_JSR;
3276
3277         /* restore integer and float argument registers */
3278
3279         j = 0;
3280
3281         for (i = 0; i < md->paramcount; i++) {
3282                 t = md->paramtypes[i].type;
3283
3284                 if (IS_INT_LNG_TYPE(t)) {
3285                         if (!md->params[i].inmemory) {
3286                                 s1 = md->params[i].regoff;
3287                                 M_LLD(rd->argintregs[s1], REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + j * 8);
3288                                 j++;
3289                         }
3290                 }
3291         }
3292
3293         for (i = 0; i < md->paramcount; i++) {
3294                 if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
3295                         if (!md->params[i].inmemory) {
3296                                 s1 = md->params[i].regoff;
3297                                 M_DLD(rd->argfltregs[s1], REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + j * 8);
3298                                 j++;
3299                         }
3300                 }
3301         }
3302
3303         /* copy or spill arguments to new locations */
3304
3305         for (i = md->paramcount - 1, j = i + nativeparams; i >= 0; i--, j--) {
3306                 t = md->paramtypes[i].type;
3307
3308                 if (IS_INT_LNG_TYPE(t)) {
3309                         if (!md->params[i].inmemory) {
3310                                 s1 = rd->argintregs[md->params[i].regoff];
3311
3312                                 if (!nmd->params[j].inmemory) {
3313                                         s2 = rd->argintregs[nmd->params[j].regoff];
3314                                         M_INTMOVE(s1, s2);
3315                                 } else {
3316                                         s2 = nmd->params[j].regoff;
3317                                         M_LST(s1, REG_SP, s2 * 8);
3318                                 }
3319
3320                         } else {
3321                                 s1 = md->params[i].regoff + stackframesize;
3322                                 s2 = nmd->params[j].regoff;
3323
3324                                 M_LLD(REG_ITMP1, REG_SP, s1 * 8);
3325                                 M_LST(REG_ITMP1, REG_SP, s2 * 8);
3326                         }
3327
3328                 } else {
3329                         /* We only copy spilled float arguments, as the float
3330                            argument registers keep unchanged. */
3331
3332                         if (md->params[i].inmemory) {
3333                                 s1 = md->params[i].regoff + stackframesize;
3334                                 s2 = nmd->params[j].regoff;
3335
3336                                 if (IS_2_WORD_TYPE(t)) {
3337                                         M_DLD(REG_FTMP1, REG_SP, s1 * 8);
3338                                         M_DST(REG_FTMP1, REG_SP, s2 * 8);
3339
3340                                 } else {
3341                                         M_FLD(REG_FTMP1, REG_SP, s1 * 8);
3342                                         M_FST(REG_FTMP1, REG_SP, s2 * 8);
3343                                 }
3344                         }
3345                 }
3346         }
3347
3348         /* put class into second argument register */
3349
3350         if (m->flags & ACC_STATIC) {
3351                 disp = dseg_addaddress(cd, m->class);
3352                 M_ALD(rd->argintregs[1], REG_PV, disp);
3353         }
3354
3355         /* put env into first argument register */
3356
3357         disp = dseg_addaddress(cd, _Jv_env);
3358         M_ALD(rd->argintregs[0], REG_PV, disp);
3359
3360         /* generate the actual native call */
3361         /* native functions have a different TOC for sure */
3362
3363         M_AST(REG_TOC, REG_SP, 40);     /* save old TOC */
3364         M_ALD(REG_ITMP3, REG_PV, funcdisp);
3365         M_ALD(REG_TOC, REG_ITMP3, 8);   /* load TOC from func. descriptor */
3366         M_ALD(REG_ITMP3, REG_ITMP3, 0);
3367         M_MTCTR(REG_ITMP3);
3368         M_JSR;
3369         M_ALD(REG_TOC, REG_SP, 40);     /* restore TOC */
3370
3371         M_NOP;
3372         M_NOP;
3373         M_NOP;
3374
3375         /* save return value */
3376
3377         if (md->returntype.type != TYPE_VOID) {
3378                 if (IS_INT_LNG_TYPE(md->returntype.type)) {
3379                         M_LST(REG_RESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
3380                 }
3381                 else {
3382                         if (IS_2_WORD_TYPE(md->returntype.type))
3383                                 M_DST(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
3384                         else
3385                                 M_FST(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);  /* FIXME, needed ?*/
3386                 }
3387         }
3388
3389         /* print call trace */
3390 #if ! defined(NDEBGUU)
3391         if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
3392                 emit_verbosecall_exit(jd);
3393         }
3394 #endif
3395         /* remove native stackframe info */
3396
3397         M_NOP;
3398         M_NOP;
3399         M_NOP;
3400
3401         M_AADD_IMM(REG_SP, stackframesize * 8, rd->argintregs[0]);
3402         disp = dseg_addaddress(cd, codegen_finish_native_call);
3403         M_ALD(REG_ITMP1, REG_PV, disp);
3404         M_ALD(REG_ITMP1, REG_ITMP1, 0); /* XXX what about TOC? */
3405         M_MTCTR(REG_ITMP1);
3406         M_JSR;
3407         M_MOV(REG_RESULT, REG_ITMP1_XPTR);
3408
3409         /* restore return value */
3410
3411         if (md->returntype.type != TYPE_VOID) {
3412                 if (IS_INT_LNG_TYPE(md->returntype.type)) {
3413                         M_LLD(REG_RESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
3414                 }
3415                 else {
3416                         if (IS_2_WORD_TYPE(md->returntype.type))
3417                                 M_DLD(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
3418                         else
3419                                 M_FLD(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
3420                 }
3421         }
3422
3423         M_ALD(REG_ITMP2_XPC, REG_SP, stackframesize * 8 + LA_LR_OFFSET);
3424         M_MTLR(REG_ITMP2_XPC);
3425         M_LDA(REG_SP, REG_SP, stackframesize * 8); /* remove stackframe           */
3426
3427         /* check for exception */
3428
3429         M_TST(REG_ITMP1_XPTR);
3430         M_BNE(1);                           /* if no exception then return        */
3431
3432         M_RET;
3433
3434         /* handle exception */
3435
3436         M_LADD_IMM(REG_ITMP2_XPC, -4, REG_ITMP2_XPC);  /* exception address       */
3437
3438         disp = dseg_addaddress(cd, asm_handle_nat_exception);
3439         M_ALD(REG_ITMP3, REG_PV, disp);
3440         M_MTCTR(REG_ITMP3);
3441         M_RTS;
3442
3443         /* generate patcher stub call code */
3444
3445         {
3446                 patchref *pref;
3447                 u4        mcode;
3448                 u1       *savedmcodeptr;
3449                 u1       *tmpmcodeptr;
3450
3451                 for (pref = cd->patchrefs; pref != NULL; pref = pref->next) {
3452                         /* Get machine code which is patched back in later. The
3453                            call is 1 instruction word long. */
3454
3455                         tmpmcodeptr = cd->mcodebase + pref->branchpos;
3456
3457                         mcode = *((u4 *) tmpmcodeptr);
3458
3459                         /* Patch in the call to call the following code (done at
3460                            compile time). */
3461
3462                         savedmcodeptr = cd->mcodeptr;   /* save current mcodeptr          */
3463                         cd->mcodeptr  = tmpmcodeptr;    /* set mcodeptr to patch position */
3464
3465                         disp = ((u4 *) savedmcodeptr) - (((u4 *) tmpmcodeptr) + 1);
3466                         M_BL(disp);
3467
3468                         cd->mcodeptr = savedmcodeptr;   /* restore the current mcodeptr   */
3469
3470                         /* create stack frame - keep stack 16-byte aligned */
3471
3472                         M_AADD_IMM(REG_SP, -8 * 8, REG_SP);
3473
3474                         /* move return address onto stack */
3475
3476                         M_MFLR(REG_ZERO);
3477                         M_AST(REG_ZERO, REG_SP, 5 * 8);
3478
3479                         /* move pointer to java_objectheader onto stack */
3480
3481 #if defined(ENABLE_THREADS)
3482                         /* order reversed because of data segment layout */
3483
3484                         (void) dseg_addaddress(cd, NULL);                         /* flcword    */
3485                         (void) dseg_addaddress(cd, lock_get_initial_lock_word()); /* monitorPtr */
3486                         disp = dseg_addaddress(cd, NULL);                         /* vftbl      */
3487
3488                         M_LDA(REG_ITMP3, REG_PV, disp);
3489                         M_AST(REG_ITMP3, REG_SP, 4 * 8);
3490 #else
3491                         /* do nothing */
3492 #endif
3493
3494                         /* move machine code onto stack */
3495
3496                         disp = dseg_adds4(cd, mcode);
3497                         M_ILD(REG_ITMP3, REG_PV, disp);
3498                         M_IST(REG_ITMP3, REG_SP, 3 * 8);
3499
3500                         /* move class/method/field reference onto stack */
3501
3502                         disp = dseg_addaddress(cd, pref->ref);
3503                         M_ALD(REG_ITMP3, REG_PV, disp);
3504                         M_AST(REG_ITMP3, REG_SP, 2 * 8);
3505
3506                         /* move data segment displacement onto stack */
3507
3508                         disp = dseg_adds4(cd, pref->disp);
3509                         M_ILD(REG_ITMP3, REG_PV, disp);
3510                         M_IST(REG_ITMP3, REG_SP, 1 * 8);
3511
3512                         /* move patcher function pointer onto stack */
3513
3514                         disp = dseg_addaddress(cd, pref->patcher);
3515                         M_ALD(REG_ITMP3, REG_PV, disp);
3516                         M_AST(REG_ITMP3, REG_SP, 0 * 8);
3517
3518                         disp = dseg_addaddress(cd, asm_patcher_wrapper);
3519                         M_ALD(REG_ITMP3, REG_PV, disp);
3520                         M_MTCTR(REG_ITMP3);
3521                         M_RTS;
3522                 }
3523         }
3524
3525         codegen_finish(jd);
3526
3527         return code->entrypoint;
3528 }
3529
3530
3531
3532
3533 /*
3534  * These are local overrides for various environment variables in Emacs.
3535  * Please do not remove this and leave it at the end of the file, where
3536  * Emacs will automagically detect them.
3537  * ---------------------------------------------------------------------
3538  * Local variables:
3539  * mode: c
3540  * indent-tabs-mode: t
3541  * c-basic-offset: 4
3542  * tab-width: 4
3543  * End:
3544  * vim:noexpandtab:sw=4:ts=4:
3545  */