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 5619 2006-10-01 23:51:23Z 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                         } else {
 427                                 assert((var->flags & OUTVAR));
 428                                 /* will be done directly in simplereg lateron          */
 429                                 /* for now codegen_reg_of_var has to be called here to */
 430                                 /* set the regoff and flags for all bptr->invars[]     */
 431                                 d = codegen_reg_of_var(0, var, REG_IFTMP);
 432                         }
 433                 }
 434
 435 #if defined(ENABLE_LSRA)
 436                 }
 437 #endif
 438                 /* walk through all instructions */
 439
 440                 len = bptr->icount;
 441                 currentline = 0;
 442
 443                 for (iptr = bptr->iinstr; len > 0; len--, iptr++) {
 444                         if (iptr->line != currentline) {
 445                                 dseg_addlinenumber(cd, iptr->line);
 446                                 currentline = iptr->line;
 447                         }
 448
 449                         MCODECHECK(64);   /* an instruction usually needs < 64 words      */
 450
 451                         /* M_NOP; M_NOP; XXX */
 452                         switch (iptr->opc) {
 453                         case ICMD_NOP:    /* ...  ==> ...                                 */
 454                         case ICMD_INLINE_START:
 455                         case ICMD_INLINE_END:
 456                                 break;
 457
 458                 case ICMD_CHECKNULL:  /* ..., objectref  ==> ..., objectref           */
 459
 460                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 461                         M_TST(s1);
 462                         M_BEQ(0);
 463                         codegen_add_nullpointerexception_ref(cd);
 464                         break;
 465
 466                 /* constant operations ************************************************/
 467
 468                 case ICMD_ICONST:     /* ...  ==> ..., constant                       */
 469
 470                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 471                         ICONST(d, iptr->sx.val.i);
 472                         emit_store_dst(jd, iptr, d);
 473                         break;
 474
 475                 case ICMD_LCONST:     /* ...  ==> ..., constant                       */
 476
 477                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 478                         LCONST(d, iptr->sx.val.l);
 479                         emit_store_dst(jd, iptr, d);
 480                         break;
 481
 482                 case ICMD_FCONST:     /* ...  ==> ..., constant                       */
 483
 484                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 485                         a = dseg_addfloat(cd, iptr->sx.val.f);
 486                         M_FLD(d, REG_PV, a);
 487                         emit_store_dst(jd, iptr, d);
 488                         break;
 489
 490                 case ICMD_DCONST:     /* ...  ==> ..., constant                       */
 491
 492                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 493                         a = dseg_adddouble(cd, iptr->sx.val.d);
 494                         M_DLD(d, REG_PV, a);
 495                         emit_store_dst(jd, iptr, d);
 496                         break;
 497
 498                 case ICMD_ACONST:     /* ...  ==> ..., constant                       */
 499                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 500                         disp = dseg_addaddress(cd, iptr->sx.val.anyptr);
 501
 502                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
 503                                 codegen_addpatchref(cd, PATCHER_aconst,
 504                                                                         iptr->sx.val.c.ref,
 505                                                                     disp);
 506
 507                                 if (opt_showdisassemble)
 508                                         M_NOP;
 509                         }
 510
 511                         M_ALD(d, REG_PV, disp);
 512                         emit_store_dst(jd, iptr, d);
 513                         break;
 514
 515
 516                 /* load/store/copy/move operations ************************************/
 517
 518                 case ICMD_ILOAD:      /* ...  ==> ..., content of local variable      */
 519                 case ICMD_ALOAD:      /* s1.localindex = local variable               */
 520                 case ICMD_LLOAD:
 521                 case ICMD_FLOAD:      /* ...  ==> ..., content of local variable      */
 522                 case ICMD_DLOAD:      /* ...  ==> ..., content of local variable      */
 523                 case ICMD_ISTORE:     /* ..., value  ==> ...                          */
 524                 case ICMD_ASTORE:     /* dst.localindex = local variable              */
 525                 case ICMD_LSTORE:
 526                 case ICMD_FSTORE:     /* ..., value  ==> ...                          */
 527                 case ICMD_DSTORE:     /* ..., value  ==> ...                          */
 528                 case ICMD_COPY:
 529                 case ICMD_MOVE:
 530                 case ICMD_DUP:        /* ..., a ==> ..., a, a                         */
 531
 532                         M_COPY(iptr->s1.varindex, iptr->dst.varindex);
 533                         break;
 534
 535
 536                 /* pop operations *****************************************************/
 537
 538                 /* attention: double and longs are only one entry in CACAO ICMDs      */
 539
 540                 case ICMD_POP:        /* ..., value  ==> ...                          */
 541                 case ICMD_POP2:       /* ..., value, value  ==> ...                   */
 542
 543                         break;
 544
 545
 546                 /* integer operations *************************************************/
 547
 548                 case ICMD_INEG:       /* ..., value  ==> ..., - value                 */
 549
 550                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 551                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 552                         M_NEG(s1, d);
 553                         emit_store_dst(jd, iptr, d);
 554                         break;
 555
 556                 case ICMD_LNEG:       /* ..., value  ==> ..., - value                 */
 557
 558                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 559                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 560                         M_NEG(s1, d); /* XXX */
 561                         emit_store_dst(jd, iptr, d);
 562                         break;
 563
 564                 case ICMD_I2L:        /* ..., value  ==> ..., value                   */
 565
 566                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 567                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 568                         M_INTMOVE(s1, d);
 569                         emit_store_dst(jd, iptr, d);
 570                         break;
 571
 572                 case ICMD_L2I:        /* ..., value  ==> ..., value                   */
 573
 574                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 575                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 576                         M_ISEXT(s1, d);
 577                         emit_store_dst(jd, iptr, d);
 578                         break;
 579
 580                 case ICMD_INT2BYTE:   /* ..., value  ==> ..., value                   */
 581
 582                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 583                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 584                         M_BSEXT(s1, d);
 585                         emit_store_dst(jd, iptr, d);
 586                         break;
 587
 588                 case ICMD_INT2CHAR:   /* ..., value  ==> ..., value                   */
 589
 590                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 591                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 592                         M_CZEXT(s1, d);
 593                         emit_store_dst(jd, iptr, d);
 594                         break;
 595
 596                 case ICMD_INT2SHORT:  /* ..., value  ==> ..., value                   */
 597
 598                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 599                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 600                         M_SSEXT(s1, d);
 601                         emit_store_dst(jd, iptr, d);
 602                         break;
 603
 604
 605                 case ICMD_IADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 606
 607                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 608                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 609                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 610                         M_IADD(s1, s2, d);
 611                         M_EXTSW(d,d);
 612                         emit_store_dst(jd, iptr, d);
 613                         break;
 614
 615                 case ICMD_IADDCONST:  /* ..., value  ==> ..., value + constant        */
 616                                       /* sx.val.i = constant                          */
 617
 618                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 619                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 620                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767)) {
 621                                 M_IADD_IMM(s1, iptr->sx.val.i, d);
 622                         } else {
 623                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 624                                 M_IADD(s1, REG_ITMP2, d);
 625                         }
 626                         emit_store_dst(jd, iptr, d);
 627                         break;
 628
 629                 case ICMD_LADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 630
 631                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 632                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 633                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 634                         M_LADD(s1, s2, d);
 635                         emit_store_dst(jd, iptr, d);
 636                         break;
 637
 638                 case ICMD_LADDCONST:  /* ..., value  ==> ..., value + constant        */
 639                                       /* sx.val.l = constant                          */
 640
 641                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 642                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 643                         /* XXX check me */
 644                         if ((iptr->sx.val.l >= -32768) && (iptr->sx.val.l <= 32767)) {
 645                                 M_LADD_IMM(s1, iptr->sx.val.l, d);
 646                         } else {
 647                                 LCONST(REG_ITMP2, iptr->sx.val.l);
 648                                 M_LADD(s1, REG_ITMP2, d);
 649                         }
 650                         emit_store_dst(jd, iptr, d);
 651                         break;
 652
 653                 case ICMD_ISUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 654
 655                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 656                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 657                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 658                         M_SUB(s1, s2, d);
 659                         emit_store_dst(jd, iptr, d);
 660                         break;
 661
 662                 case ICMD_ISUBCONST:  /* ..., value  ==> ..., value + constant        */
 663                                       /* sx.val.i = constant                          */
 664
 665                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 666                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 667                         if ((iptr->sx.val.i >= -32767) && (iptr->sx.val.i <= 32768)) {
 668                                 M_IADD_IMM(s1, -iptr->sx.val.i, d);
 669                         } else {
 670                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 671                                 M_SUB(s1, REG_ITMP2, d);
 672                         }
 673                         emit_store_dst(jd, iptr, d);
 674                         break;
 675
 676                 case ICMD_LSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 677
 678                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 679                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 680                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 681                         M_SUB(s1, s2, d);
 682                         emit_store_dst(jd, iptr, d);
 683                         break;
 684
 685                 case ICMD_LSUBCONST:  /* ..., value  ==> ..., value - constant        */
 686                                       /* sx.val.l = constant                          */
 687
 688                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 689                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 690                         /* XXX check me */
 691                         if ((iptr->sx.val.l >= -32768) && (iptr->sx.val.l <= 32767)) {
 692                                 M_LADD_IMM(s1, -iptr->sx.val.l, d);
 693                         } else {
 694                                 LCONST(REG_ITMP2, iptr->sx.val.l);
 695                                 M_SUB(s1, REG_ITMP2, d);
 696                         }
 697                         emit_store_dst(jd, iptr, d);
 698                         break;
 699
 700                 case ICMD_IDIV:
 701                 case ICMD_LDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 702
 703                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 704                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 705                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 706                         M_TST(s2);
 707                         M_BEQ(0);
 708                         codegen_add_arithmeticexception_ref(cd);
 709
 710                         M_DIV(s1, s2, d);
 711
 712                         emit_store_dst(jd, iptr, d);
 713                         break;
 714
 715                 case ICMD_IREM:
 716                 case ICMD_LREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 717                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 718                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 719                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 720                         M_TST(s2);
 721                         M_BEQ(0);
 722                         codegen_add_arithmeticexception_ref(cd);
 723
 724                         /* FIXME s1 == -2^63 && s2 == -1 does not work that way */
 725                         M_DIV(s1, s2, d);
 726                         M_MUL( d, s2, d);
 727                         M_SUB(s1,  d, d);
 728                         emit_store_dst(jd, iptr, d);
 729                         break;
 730
 731                 case ICMD_IMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 732
 733                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 734                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 735                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 736                         M_MUL(s1, s2, d);
 737                         emit_store_dst(jd, iptr, d);
 738                         break;
 739
 740                 case ICMD_IMULCONST:  /* ..., value  ==> ..., value * constant        */
 741                                       /* sx.val.i = constant                          */
 742
 743                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 744                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 745                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767))
 746                                 M_MUL_IMM(s1, iptr->sx.val.i, d);
 747                         else {
 748                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 749                                 M_MUL(s1, REG_ITMP3, d);
 750                         }
 751                         emit_store_dst(jd, iptr, d);
 752                         break;
 753
 754                 case ICMD_IDIVPOW2:   /* ..., value  ==> ..., value << constant       */
 755
 756                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 757                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 758                         M_SRA_IMM(s1, iptr->sx.val.i, d);
 759                         M_ADDZE(d, d);
 760                         emit_store_dst(jd, iptr, d);
 761                         break;
 762
 763                 case ICMD_ISHL:       /* ..., val1, val2  ==> ..., val1 << val2       */
 764
 765                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 766                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 767                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 768                         M_AND_IMM(s2, 0x1f, REG_ITMP3);
 769                         M_SLL(s1, REG_ITMP3, d);
 770                         emit_store_dst(jd, iptr, d);
 771                         break;
 772
 773                 case ICMD_ISHLCONST:  /* ..., value  ==> ..., value << constant       */
 774                                       /* sx.val.i = constant                             */
 775
 776                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 777                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 778                         M_SLL_IMM(s1, iptr->sx.val.i & 0x1f, d);
 779                         emit_store_dst(jd, iptr, d);
 780                         break;
 781
 782                 case ICMD_ISHR:       /* ..., val1, val2  ==> ..., val1 >> val2       */
 783
 784                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 785                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 786                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 787                         M_AND_IMM(s2, 0x1f, REG_ITMP3);
 788                         M_SRA(s1, REG_ITMP3, d);
 789                         emit_store_dst(jd, iptr, d);
 790                         break;
 791
 792                 case ICMD_ISHRCONST:  /* ..., value  ==> ..., value >> constant       */
 793                                       /* sx.val.i = constant                             */
 794
 795                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 796                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 797                         M_SRA_IMM(s1, iptr->sx.val.i & 0x1f, d);
 798                         emit_store_dst(jd, iptr, d);
 799                         break;
 800
 801                 case ICMD_IUSHR:      /* ..., val1, val2  ==> ..., val1 >>> val2      */
 802
 803                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 804                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 805                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 806                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 807                         M_SRL(s1, REG_ITMP2, d);
 808                         emit_store_dst(jd, iptr, d);
 809                         break;
 810
 811                 case ICMD_IUSHRCONST: /* ..., value  ==> ..., value >>> constant      */
 812                                       /* sx.val.i = constant                             */
 813
 814                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 815                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 816                         if (iptr->sx.val.i & 0x1f) {
 817                                 M_SRL_IMM(s1, iptr->sx.val.i & 0x1f, d);
 818                         } else {
 819                                 M_INTMOVE(s1, d);
 820                         }
 821                         emit_store_dst(jd, iptr, d);
 822                         break;
 823
 824                 case ICMD_IAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 825                 case ICMD_LAND:
 826
 827                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 828                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 829                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 830                         M_AND(s1, s2, d);
 831                         emit_store_dst(jd, iptr, d);
 832                         break;
 833
 834                 case ICMD_IANDCONST:  /* ..., value  ==> ..., value & constant        */
 835                                       /* sx.val.i = constant                          */
 836
 837                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 838                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 839                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535)) {
 840                                 M_AND_IMM(s1, iptr->sx.val.i, d);
 841                                 }
 842                         /*
 843                         else if (iptr->sx.val.i == 0xffffff) {
 844                                 M_RLWINM(s1, 0, 8, 31, d);
 845                                 }
 846                         */
 847                         else {
 848                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 849                                 M_AND(s1, REG_ITMP3, d);
 850                         }
 851                         emit_store_dst(jd, iptr, d);
 852                         break;
 853
 854                 case ICMD_LANDCONST:  /* ..., value  ==> ..., value & constant        */
 855                                       /* sx.val.l = constant                          */
 856
 857                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 858                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 859                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
 860                                 M_AND_IMM(s1, iptr->sx.val.l, d);
 861                         /*
 862                         else if (iptr->sx.val.l == 0xffffff) {
 863                                 M_RLWINM(s1, 0, 8, 31, d);
 864                                 }
 865                         */
 866                         else {
 867                                 LCONST(REG_ITMP3, iptr->sx.val.l);
 868                                 M_AND(s1, REG_ITMP3, d);
 869                         }
 870                         emit_store_dst(jd, iptr, d);
 871                         break;
 872
 873                 case ICMD_IREMPOW2:   /* ..., value  ==> ..., value % constant        */
 874                                       /* sx.val.i = constant                             */
 875
 876                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 877                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 878                         M_MOV(s1, REG_ITMP2);
 879                         M_CMPI(s1, 0);
 880                         M_BGE(1 + 2*(iptr->sx.val.i >= 32768));
 881                         if (iptr->sx.val.i >= 32768) {
 882                                 M_ADDIS(REG_ZERO, iptr->sx.val.i >> 16, REG_ITMP2);
 883                                 M_OR_IMM(REG_ITMP2, iptr->sx.val.i, REG_ITMP2);
 884                                 M_IADD(s1, REG_ITMP2, REG_ITMP2);
 885                         } else {
 886                                 M_IADD_IMM(s1, iptr->sx.val.i, REG_ITMP2);
 887                         }
 888                         {
 889                                 int b=0, m = iptr->sx.val.i;
 890                                 while (m >>= 1)
 891                                         ++b;
 892                                 M_RLWINM(REG_ITMP2, 0, 0, 30-b, REG_ITMP2);
 893                         }
 894                         M_SUB(s1, REG_ITMP2, d);
 895                         emit_store_dst(jd, iptr, d);
 896                         break;
 897
 898                 case ICMD_IOR:        /* ..., val1, val2  ==> ..., val1 | val2        */
 899                 case ICMD_LOR:
 900
 901                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 902                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 903                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 904                         M_OR(s1, s2, d);
 905                         emit_store_dst(jd, iptr, d);
 906                         break;
 907
 908                 case ICMD_IORCONST:   /* ..., value  ==> ..., value | constant        */
 909                                       /* sx.val.i = constant                          */
 910
 911                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 912                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 913                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
 914                                 M_OR_IMM(s1, iptr->sx.val.i, d);
 915                         else {
 916                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 917                                 M_OR(s1, REG_ITMP3, d);
 918                         }
 919                         emit_store_dst(jd, iptr, d);
 920                         break;
 921
 922                 case ICMD_LORCONST:   /* ..., value  ==> ..., value | constant        */
 923                                       /* sx.val.l = constant                          */
 924
 925                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 926                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 927                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
 928                                 M_OR_IMM(s1, iptr->sx.val.l, d);
 929                         else {
 930                                 LCONST(REG_ITMP3, iptr->sx.val.l);
 931                                 M_OR(s1, REG_ITMP3, d);
 932                         }
 933                         emit_store_dst(jd, iptr, d);
 934                         break;
 935
 936
 937                 case ICMD_IXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
 938                 case ICMD_LXOR:
 939
 940                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 941                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 942                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 943                         M_XOR(s1, s2, d);
 944                         emit_store_dst(jd, iptr, d);
 945                         break;
 946
 947                 case ICMD_IXORCONST:  /* ..., value  ==> ..., value ^ constant        */
 948                                       /* sx.val.i = constant                          */
 949
 950                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 951                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 952                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
 953                                 M_XOR_IMM(s1, iptr->sx.val.i, d);
 954                         else {
 955                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 956                                 M_XOR(s1, REG_ITMP3, d);
 957                         }
 958                         emit_store_dst(jd, iptr, d);
 959                         break;
 960
 961                 case ICMD_LXORCONST:  /* ..., value  ==> ..., value ^ constant        */
 962                                       /* sx.val.l = constant                          */
 963
 964                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 965                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 966                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
 967                                 M_XOR_IMM(s1, iptr->sx.val.l, d);
 968                         else {
 969                                 LCONST(REG_ITMP3, iptr->sx.val.l);
 970                                 M_XOR(s1, REG_ITMP3, d);
 971                         }
 972                         emit_store_dst(jd, iptr, d);
 973                         break;
 974
 975                 case ICMD_LCMP:       /* ..., val1, val2  ==> ..., val1 cmp val2      */
 976
 977                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 978                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 979                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 980                         /* XXX implement me!!! */
 981                         emit_store_dst(jd, iptr, d);
 982                         break;
 983                         break;
 984
 985                 case ICMD_IINC:       /* ..., value  ==> ..., value + constant        */
 986                                       /* s1.localindex = variable, sx.val.i = constant*/
 987
 988                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 989                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 990
 991                         /* XXX implement me more efficiently */
 992                         ICONST(REG_ITMP2, iptr->sx.val.i);
 993                         M_IADD(s1, REG_ITMP2, d);
 994
 995                         emit_store_dst(jd, iptr, d);
 996                         break;
 997
 998
 999                 /* floating operations ************************************************/
1000
1001                 case ICMD_FNEG:       /* ..., value  ==> ..., - value                 */
1002
1003                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1004                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1005                         M_FMOVN(s1, d);
1006                         emit_store_dst(jd, iptr, d);
1007                         break;
1008
1009                 case ICMD_DNEG:       /* ..., value  ==> ..., - value                 */
1010
1011                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1012                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1013                         M_FMOVN(s1, d);
1014                         emit_store_dst(jd, iptr, d);
1015                         break;
1016
1017                 case ICMD_FADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
1018
1019                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1020                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1021                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1022                         M_FADD(s1, s2, d);
1023                         emit_store_dst(jd, iptr, d);
1024                         break;
1025
1026                 case ICMD_DADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
1027
1028                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1029                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1030                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1031                         M_DADD(s1, s2, d);
1032                         emit_store_dst(jd, iptr, d);
1033                         break;
1034
1035                 case ICMD_FSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
1036
1037                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1038                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1039                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1040                         M_FSUB(s1, s2, d);
1041                         emit_store_dst(jd, iptr, d);
1042                         break;
1043
1044                 case ICMD_DSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
1045
1046                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1047                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1048                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1049                         M_DSUB(s1, s2, d);
1050                         emit_store_dst(jd, iptr, d);
1051                         break;
1052
1053                 case ICMD_FMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1054
1055                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1056                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1057                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1058                         M_FMUL(s1, s2, d);
1059                         emit_store_dst(jd, iptr, d);
1060                         break;
1061
1062                 case ICMD_DMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1063
1064                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1065                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1066                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1067                         M_DMUL(s1, s2, d);
1068                         emit_store_dst(jd, iptr, d);
1069                         break;
1070
1071                 case ICMD_FDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1072
1073                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1074                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1075                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1076                         M_FDIV(s1, s2, d);
1077                         emit_store_dst(jd, iptr, d);
1078                         break;
1079
1080                 case ICMD_DDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1081
1082                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1083                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1084                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1085                         M_DDIV(s1, s2, d);
1086                         emit_store_dst(jd, iptr, d);
1087                         break;
1088
1089                 case ICMD_F2I:       /* ..., value  ==> ..., (int) value              */
1090                 case ICMD_D2I:
1091
1092                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1093                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1094                         M_CLR(d);
1095                         disp = dseg_addfloat(cd, 0.0);
1096                         M_FLD(REG_FTMP2, REG_PV, disp);
1097                         M_FCMPU(s1, REG_FTMP2);
1098                         M_BNAN(4);
1099                         disp = dseg_adds4(cd, 0);
1100                         M_CVTDL_C(s1, REG_FTMP1);
1101                         M_LDA(REG_ITMP1, REG_PV, disp);
1102                         M_STFIWX(REG_FTMP1, 0, REG_ITMP1);
1103                         M_ILD(d, REG_PV, disp);
1104                         emit_store_dst(jd, iptr, d);
1105                         break;
1106
1107                 case ICMD_F2D:       /* ..., value  ==> ..., (double) value           */
1108
1109                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1110                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1111                         M_FLTMOVE(s1, d);
1112                         emit_store_dst(jd, iptr, d);
1113                         break;
1114
1115                 case ICMD_D2F:       /* ..., value  ==> ..., (double) value           */
1116
1117                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1118                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1119                         M_CVTDF(s1, d);
1120                         emit_store_dst(jd, iptr, d);
1121                         break;
1122
1123                 case ICMD_FCMPL:      /* ..., val1, val2  ==> ..., val1 fcmpg val2    */
1124                 case ICMD_DCMPL:      /* == => 0, < => 1, > => -1                     */
1125
1126
1127                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1128                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1129                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1130                         M_FCMPU(s2, s1);
1131                         M_IADD_IMM(REG_ZERO, -1, d);
1132                         M_BNAN(4);
1133                         M_BGT(3);
1134                         M_IADD_IMM(REG_ZERO, 0, d);
1135                         M_BGE(1);
1136                         M_IADD_IMM(REG_ZERO, 1, d);
1137                         emit_store_dst(jd, iptr, d);
1138                         break;
1139
1140                 case ICMD_FCMPG:      /* ..., val1, val2  ==> ..., val1 fcmpl val2    */
1141                 case ICMD_DCMPG:      /* == => 0, < => 1, > => -1                     */
1142
1143                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1144                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1145                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1146                         M_FCMPU(s1, s2);
1147                         M_IADD_IMM(REG_ZERO, 1, d);
1148                         M_BNAN(4);
1149                         M_BGT(3);
1150                         M_IADD_IMM(REG_ZERO, 0, d);
1151                         M_BGE(1);
1152                         M_IADD_IMM(REG_ZERO, -1, d);
1153                         emit_store_dst(jd, iptr, d);
1154                         break;
1155
1156                 case ICMD_IF_FCMPEQ:    /* ..., value, value ==> ...                  */
1157                 case ICMD_IF_DCMPEQ:
1158
1159                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1160                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1161                         M_FCMPU(s1, s2);
1162                         M_BNAN(1);
1163                         M_BEQ(0);
1164                         codegen_addreference(cd, iptr->dst.block);
1165                         break;
1166
1167                 case ICMD_IF_FCMPNE:    /* ..., value, value ==> ...                  */
1168                 case ICMD_IF_DCMPNE:
1169
1170                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1171                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1172                         M_FCMPU(s1, s2);
1173                         M_BNAN(0);
1174                         codegen_addreference(cd, iptr->dst.block);
1175                         M_BNE(0);
1176                         codegen_addreference(cd, iptr->dst.block);
1177                         break;
1178
1179
1180                 case ICMD_IF_FCMPL_LT:  /* ..., value, value ==> ...                  */
1181                 case ICMD_IF_DCMPL_LT:
1182
1183                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1184                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1185                         M_FCMPU(s1, s2);
1186                         M_BNAN(0);
1187                         codegen_addreference(cd, iptr->dst.block);
1188                         M_BLT(0);
1189                         codegen_addreference(cd, iptr->dst.block);
1190                         break;
1191
1192                 case ICMD_IF_FCMPL_GT:  /* ..., value, value ==> ...                  */
1193                 case ICMD_IF_DCMPL_GT:
1194
1195                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1196                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1197                         M_FCMPU(s1, s2);
1198                         M_BNAN(1);
1199                         M_BGT(0);
1200                         codegen_addreference(cd, iptr->dst.block);
1201                         break;
1202
1203                 case ICMD_IF_FCMPL_LE:  /* ..., value, value ==> ...                  */
1204                 case ICMD_IF_DCMPL_LE:
1205
1206                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1207                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1208                         M_FCMPU(s1, s2);
1209                         M_BNAN(0);
1210                         codegen_addreference(cd, iptr->dst.block);
1211                         M_BLE(0);
1212                         codegen_addreference(cd, iptr->dst.block);
1213                         break;
1214
1215                 case ICMD_IF_FCMPL_GE:  /* ..., value, value ==> ...                  */
1216                 case ICMD_IF_DCMPL_GE:
1217
1218                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1219                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1220                         M_FCMPU(s1, s2);
1221                         M_BNAN(1);
1222                         M_BGE(0);
1223                         codegen_addreference(cd, iptr->dst.block);
1224                         break;
1225
1226                 case ICMD_IF_FCMPG_LT:  /* ..., value, value ==> ...                  */
1227                 case ICMD_IF_DCMPG_LT:
1228
1229                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1230                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1231                         M_FCMPU(s1, s2);
1232                         M_BNAN(1);
1233                         M_BLT(0);
1234                         codegen_addreference(cd, iptr->dst.block);
1235                         break;
1236
1237                 case ICMD_IF_FCMPG_GT:  /* ..., value, value ==> ...                  */
1238                 case ICMD_IF_DCMPG_GT:
1239
1240                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1241                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1242                         M_FCMPU(s1, s2);
1243                         M_BNAN(0);
1244                         codegen_addreference(cd, iptr->dst.block);
1245                         M_BGT(0);
1246                         codegen_addreference(cd, iptr->dst.block);
1247                         break;
1248
1249                 case ICMD_IF_FCMPG_LE:  /* ..., value, value ==> ...                  */
1250                 case ICMD_IF_DCMPG_LE:
1251
1252                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1253                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1254                         M_FCMPU(s1, s2);
1255                         M_BNAN(1);
1256                         M_BLE(0);
1257                         codegen_addreference(cd, iptr->dst.block);
1258                         break;
1259
1260                 case ICMD_IF_FCMPG_GE:  /* ..., value, value ==> ...                  */
1261                 case ICMD_IF_DCMPG_GE:
1262
1263                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1264                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1265                         M_FCMPU(s1, s2);
1266                         M_BNAN(0);
1267                         codegen_addreference(cd, iptr->dst.block);
1268                         M_BGE(0);
1269                         codegen_addreference(cd, iptr->dst.block);
1270                         break;
1271
1272
1273                 /* memory operations **************************************************/
1274
1275                 case ICMD_ARRAYLENGTH: /* ..., arrayref  ==> ..., length              */
1276
1277                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1278                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1279                         gen_nullptr_check(s1);
1280                         M_ILD(d, s1, OFFSET(java_arrayheader, size));
1281                         emit_store_dst(jd, iptr, d);
1282                         break;
1283
1284                 case ICMD_BALOAD:     /* ..., arrayref, index  ==> ..., value         */
1285
1286                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1287                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1288                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1289                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1290                                 gen_nullptr_check(s1);
1291                                 gen_bound_check;
1292                         }
1293                         M_IADD_IMM(s2, OFFSET(java_chararray, data[0]), REG_ITMP2);
1294                         M_LBZX(d, s1, REG_ITMP2);
1295                         M_BSEXT(d, d);
1296                         emit_store_dst(jd, iptr, d);
1297                         break;
1298
1299                 case ICMD_CALOAD:     /* ..., arrayref, index  ==> ..., value         */
1300
1301                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1302                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1303                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1304                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1305                                 gen_nullptr_check(s1);
1306                                 gen_bound_check;
1307                         }
1308                         M_SLL_IMM(s2, 1, REG_ITMP2);
1309                         M_IADD_IMM(REG_ITMP2, OFFSET(java_chararray, data[0]), REG_ITMP2);
1310                         M_LHAX(d, s1, REG_ITMP2);
1311                         emit_store_dst(jd, iptr, d);
1312                         break;
1313
1314                 case ICMD_SALOAD:     /* ..., arrayref, index  ==> ..., value         */
1315
1316                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1317                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1318                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1319                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1320                                 gen_nullptr_check(s1);
1321                                 gen_bound_check;
1322                         }
1323                         M_SLL_IMM(s2, 1, REG_ITMP2);
1324                         M_IADD_IMM(REG_ITMP2, OFFSET(java_shortarray, data[0]), REG_ITMP2);
1325                         M_LHAX(d, s1, REG_ITMP2);
1326                         emit_store_dst(jd, iptr, d);
1327                         break;
1328
1329                 case ICMD_IALOAD:     /* ..., arrayref, index  ==> ..., value         */
1330
1331                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1332                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1333                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1334                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1335                                 gen_nullptr_check(s1);
1336                                 gen_bound_check;
1337                         }
1338                         M_SLL_IMM(s2, 2, REG_ITMP2);
1339                         M_IADD_IMM(REG_ITMP2, OFFSET(java_intarray, data[0]), REG_ITMP2);
1340                         M_LWZX(d, s1, REG_ITMP2);
1341                         emit_store_dst(jd, iptr, d);
1342                         break;
1343
1344                 case ICMD_LALOAD:     /* ..., arrayref, index  ==> ..., value         */
1345
1346                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1347                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1348                         d = codegen_reg_of_dst(jd, iptr, PACK_REGS(REG_ITMP2, REG_ITMP1));
1349                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1350                                 gen_nullptr_check(s1);
1351                                 gen_bound_check;
1352                         }
1353                         M_SLL_IMM(s2, 3, REG_ITMP2);
1354                         M_IADD(s1, REG_ITMP2, REG_ITMP2);
1355                         M_LLD_INTERN(d, REG_ITMP2, OFFSET(java_longarray, data[0]));
1356                         emit_store_dst(jd, iptr, d);
1357                         break;
1358
1359                 case ICMD_FALOAD:     /* ..., arrayref, index  ==> ..., value         */
1360
1361                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1362                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1363                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1364                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1365                                 gen_nullptr_check(s1);
1366                                 gen_bound_check;
1367                         }
1368                         M_SLL_IMM(s2, 2, REG_ITMP2);
1369                         M_IADD_IMM(REG_ITMP2, OFFSET(java_floatarray, data[0]), REG_ITMP2);
1370                         M_LFSX(d, s1, REG_ITMP2);
1371                         emit_store_dst(jd, iptr, d);
1372                         break;
1373
1374                 case ICMD_DALOAD:     /* ..., arrayref, index  ==> ..., value         */
1375
1376                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1377                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1378                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1379                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1380                                 gen_nullptr_check(s1);
1381                                 gen_bound_check;
1382                         }
1383                         M_SLL_IMM(s2, 3, REG_ITMP2);
1384                         M_IADD_IMM(REG_ITMP2, OFFSET(java_doublearray, data[0]), REG_ITMP2);
1385                         M_LFDX(d, s1, REG_ITMP2);
1386                         emit_store_dst(jd, iptr, d);
1387                         break;
1388
1389                 case ICMD_AALOAD:     /* ..., arrayref, index  ==> ..., value         */
1390
1391                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1392                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1393                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1394                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1395                                 gen_nullptr_check(s1);
1396                                 gen_bound_check;
1397                         }
1398                         M_SLL_IMM(s2, 3, REG_ITMP2);
1399                         M_IADD_IMM(REG_ITMP2, OFFSET(java_objectarray, data[0]), REG_ITMP2);
1400                         M_ALDX(d, s1, REG_ITMP2);
1401                         emit_store_dst(jd, iptr, d);
1402                         break;
1403
1404
1405                 case ICMD_BASTORE:    /* ..., arrayref, index, value  ==> ...         */
1406
1407                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1408                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1409                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1410                                 gen_nullptr_check(s1);
1411                                 gen_bound_check;
1412                         }
1413                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1414                         M_IADD_IMM(s2, OFFSET(java_bytearray, data[0]), REG_ITMP2);
1415                         M_STBX(s3, s1, REG_ITMP2);
1416                         break;
1417
1418                 case ICMD_CASTORE:    /* ..., arrayref, index, value  ==> ...         */
1419
1420                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1421                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1422                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1423                                 gen_nullptr_check(s1);
1424                                 gen_bound_check;
1425                         }
1426                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1427                         M_SLL_IMM(s2, 1, REG_ITMP2);
1428                         M_IADD_IMM(REG_ITMP2, OFFSET(java_chararray, data[0]), REG_ITMP2);
1429                         M_STHX(s3, s1, REG_ITMP2);
1430                         break;
1431
1432                 case ICMD_SASTORE:    /* ..., arrayref, index, value  ==> ...         */
1433
1434                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1435                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1436                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1437                                 gen_nullptr_check(s1);
1438                                 gen_bound_check;
1439                         }
1440                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1441                         M_SLL_IMM(s2, 1, REG_ITMP2);
1442                         M_IADD_IMM(REG_ITMP2, OFFSET(java_shortarray, data[0]), REG_ITMP2);
1443                         M_STHX(s3, s1, REG_ITMP2);
1444                         break;
1445
1446                 case ICMD_IASTORE:    /* ..., arrayref, index, value  ==> ...         */
1447
1448                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1449                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1450                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1451                                 gen_nullptr_check(s1);
1452                                 gen_bound_check;
1453                         }
1454                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1455                         M_SLL_IMM(s2, 2, REG_ITMP2);
1456                         M_IADD_IMM(REG_ITMP2, OFFSET(java_intarray, data[0]), REG_ITMP2);
1457                         M_STWX(s3, s1, REG_ITMP2);
1458                         break;
1459
1460                 case ICMD_LASTORE:    /* ..., arrayref, index, value  ==> ...         */
1461
1462                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1463                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1464                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1465                                 gen_nullptr_check(s1);
1466                                 gen_bound_check;
1467                         }
1468                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1469                         M_SLL_IMM(s2, 3, REG_ITMP2);
1470                         M_IADD_IMM(REG_ITMP2, OFFSET(java_longarray, data[0]), REG_ITMP2);
1471                         M_LST(s3, s1, REG_ITMP2);
1472                         break;
1473
1474                 case ICMD_FASTORE:    /* ..., arrayref, index, value  ==> ...         */
1475
1476                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1477                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1478                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1479                                 gen_nullptr_check(s1);
1480                                 gen_bound_check;
1481                         }
1482                         s3 = emit_load_s3(jd, iptr, REG_FTMP3);
1483                         M_SLL_IMM(s2, 2, REG_ITMP2);
1484                         M_IADD_IMM(REG_ITMP2, OFFSET(java_floatarray, data[0]), REG_ITMP2);
1485                         M_STFSX(s3, s1, REG_ITMP2);
1486                         break;
1487
1488                 case ICMD_DASTORE:    /* ..., arrayref, index, value  ==> ...         */
1489
1490                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1491                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1492                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1493                                 gen_nullptr_check(s1);
1494                                 gen_bound_check;
1495                         }
1496                         s3 = emit_load_s3(jd, iptr, REG_FTMP3);
1497                         M_SLL_IMM(s2, 3, REG_ITMP2);
1498                         M_IADD_IMM(REG_ITMP2, OFFSET(java_doublearray, data[0]), REG_ITMP2);
1499                         M_STFDX(s3, s1, REG_ITMP2);
1500                         break;
1501
1502                 case ICMD_AASTORE:    /* ..., arrayref, index, value  ==> ...         */
1503
1504                         s1 = emit_load_s1(jd, iptr, rd->argintregs[0]);
1505                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1506                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1507                                 gen_nullptr_check(s1);
1508                                 gen_bound_check;
1509                         }
1510                         s3 = emit_load_s3(jd, iptr, rd->argintregs[1]);
1511
1512                         disp = dseg_addaddress(cd, BUILTIN_canstore);
1513                         M_ALD(REG_ITMP3, REG_PV, disp);
1514                         M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
1515                         M_MTCTR(REG_ITMP3);
1516
1517                         M_INTMOVE(s1, rd->argintregs[0]);
1518                         M_INTMOVE(s3, rd->argintregs[1]);
1519
1520                         M_JSR;
1521                         M_TST(REG_RESULT);
1522                         M_BEQ(0);
1523                         codegen_add_arraystoreexception_ref(cd);
1524
1525                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1526                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1527                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1528                         M_SLL_IMM(s2, 3, REG_ITMP2);
1529                         M_IADD_IMM(REG_ITMP2, OFFSET(java_objectarray, data[0]), REG_ITMP2);
1530                         M_ASTX(s3, s1, REG_ITMP2);
1531                         break;
1532
1533
1534                 case ICMD_GETSTATIC:  /* ...  ==> ..., value                          */
1535
1536                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1537                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1538
1539                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1540                                 disp = dseg_addaddress(cd, NULL);
1541
1542                                 codegen_addpatchref(cd, PATCHER_get_putstatic,
1543                                                                         iptr->sx.s23.s3.uf, disp);
1544
1545                                 if (opt_showdisassemble)
1546                                         M_NOP;
1547
1548                         } else {
1549                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1550
1551                                 fieldtype = fi->type;
1552                                 disp = dseg_addaddress(cd, &(fi->value));
1553
1554                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1555                                         codegen_addpatchref(cd, PATCHER_clinit, fi->class, disp);
1556
1557                                         if (opt_showdisassemble)
1558                                                 M_NOP;
1559                                 }
1560                         }
1561
1562                         M_ALD(REG_ITMP1, REG_PV, disp);
1563                         switch (fieldtype) {
1564                         case TYPE_INT:
1565                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1566                                 M_ILD_INTERN(d, REG_ITMP1, 0);
1567                                 break;
1568                         case TYPE_LNG:
1569                                 d = codegen_reg_of_dst(jd, iptr, PACK_REGS(REG_ITMP2, REG_ITMP1));
1570                                 M_ILD_INTERN(GET_LOW_REG(d), REG_ITMP1, 4);/* keep this order */
1571                                 M_ILD_INTERN(GET_HIGH_REG(d), REG_ITMP1, 0);/*keep this order */
1572                                 break;
1573                         case TYPE_ADR:
1574                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1575                                 M_ALD_INTERN(d, REG_ITMP1, 0);
1576                                 break;
1577                         case TYPE_FLT:
1578                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1579                                 M_FLD_INTERN(d, REG_ITMP1, 0);
1580                                 break;
1581                         case TYPE_DBL:
1582                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1583                                 M_DLD_INTERN(d, REG_ITMP1, 0);
1584                                 break;
1585                         }
1586                         emit_store_dst(jd, iptr, d);
1587                         break;
1588
1589                 case ICMD_PUTSTATIC:  /* ..., value  ==> ...                          */
1590
1591
1592                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1593                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1594
1595                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1596                                 disp = dseg_addaddress(cd, NULL);
1597
1598                                 codegen_addpatchref(cd, PATCHER_get_putstatic,
1599                                                                         iptr->sx.s23.s3.uf, disp);
1600
1601                                 if (opt_showdisassemble)
1602                                         M_NOP;
1603
1604                         } else {
1605                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1606
1607                                 fieldtype = fi->type;
1608                                 disp = dseg_addaddress(cd, &(fi->value));
1609
1610                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1611                                         codegen_addpatchref(cd, PATCHER_clinit, fi->class, disp);
1612
1613                                         if (opt_showdisassemble)
1614                                                 M_NOP;
1615                                 }
1616                         }
1617
1618                         M_ALD(REG_ITMP1, REG_PV, disp);
1619                         switch (fieldtype) {
1620                         case TYPE_INT:
1621                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1622                                 M_IST_INTERN(s1, REG_ITMP1, 0);
1623                                 break;
1624                         case TYPE_LNG:
1625                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1626                                 M_LST_INTERN(s1, REG_ITMP1, 0);
1627                                 break;
1628                         case TYPE_ADR:
1629                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1630                                 M_AST_INTERN(s1, REG_ITMP1, 0);
1631                                 break;
1632                         case TYPE_FLT:
1633                                 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1634                                 M_FST_INTERN(s1, REG_ITMP1, 0);
1635                                 break;
1636                         case TYPE_DBL:
1637                                 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1638                                 M_DST_INTERN(s1, REG_ITMP1, 0);
1639                                 break;
1640                         }
1641                         break;
1642
1643
1644                 case ICMD_GETFIELD:   /* ...  ==> ..., value                          */
1645
1646                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1647                         gen_nullptr_check(s1);
1648
1649                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1650                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1651
1652                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1653
1654                                 codegen_addpatchref(cd, PATCHER_get_putfield,
1655                                                                         iptr->sx.s23.s3.uf, 0);
1656
1657                                 if (opt_showdisassemble)
1658                                         M_NOP;
1659
1660                                 disp = 0;
1661
1662                         } else {
1663                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1664
1665                                 fieldtype = fi->type;
1666                                 disp = fi->offset;
1667                         }
1668
1669                         switch (fieldtype) {
1670                         case TYPE_INT:
1671                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1672                                 M_ILD(d, s1, disp);
1673                                 break;
1674                         case TYPE_LNG:
1675                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1676                                 M_LLD(d, s1, disp);
1677                                 break;
1678                         case TYPE_ADR:
1679                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1680                                 M_ALD(d, s1, disp);
1681                                 break;
1682                         case TYPE_FLT:
1683                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1684                                 M_FLD(d, s1, disp);
1685                                 break;
1686                         case TYPE_DBL:
1687                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1688                                 M_DLD(d, s1, disp);
1689                                 break;
1690                         }
1691                         emit_store_dst(jd, iptr, d);
1692                         break;
1693
1694                 case ICMD_PUTFIELD:   /* ..., value  ==> ...                          */
1695
1696                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1697                         gen_nullptr_check(s1);
1698
1699                         if (!IS_FLT_DBL_TYPE(fieldtype)) {
1700                                 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1701                         } else {
1702                                 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1703                         }
1704
1705                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1706                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1707
1708                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1709
1710                                 codegen_addpatchref(cd, PATCHER_get_putfield,
1711                                                                         iptr->sx.s23.s3.uf, 0);
1712
1713                                 if (opt_showdisassemble)
1714                                         M_NOP;
1715
1716                                 disp = 0;
1717
1718                         } else {
1719                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1720
1721                                 fieldtype = fi->type;
1722                                 disp = fi->offset;
1723                         }
1724
1725                         switch (fieldtype) {
1726                         case TYPE_INT:
1727                                 M_IST(s2, s1, disp);
1728                                 break;
1729                         case TYPE_LNG:
1730                                 M_LST(s2, s1, disp);
1731                                 break;
1732                         case TYPE_ADR:
1733                                 M_AST(s2, s1, disp);
1734                                 break;
1735                         case TYPE_FLT:
1736                                 M_FST(s2, s1, disp);
1737                                 break;
1738                         case TYPE_DBL:
1739                                 M_DST(s2, s1, disp);
1740                                 break;
1741                         }
1742                         break;
1743
1744
1745                 /* branch operations **************************************************/
1746
1747                 case ICMD_ATHROW:       /* ..., objectref ==> ... (, objectref)       */
1748
1749                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1750                         M_LNGMOVE(s1, REG_ITMP1_XPTR);
1751
1752 #ifdef ENABLE_VERIFIER
1753                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1754                                 codegen_addpatchref(cd, PATCHER_athrow_areturn,
1755                                                                         iptr->sx.s23.s2.uc, 0);
1756
1757                                 if (opt_showdisassemble)
1758                                         M_NOP;
1759                         }
1760 #endif /* ENABLE_VERIFIER */
1761
1762                         disp = dseg_addaddress(cd, asm_handle_exception);
1763                         M_ALD(REG_ITMP2, REG_PV, disp);
1764                         M_MTCTR(REG_ITMP2);
1765
1766                         if (jd->isleafmethod) M_MFLR(REG_ITMP3);         /* save LR        */
1767                         M_BL(0);                                        /* get current PC */
1768                         M_MFLR(REG_ITMP2_XPC);
1769                         if (jd->isleafmethod) M_MTLR(REG_ITMP3);         /* restore LR     */
1770                         M_RTS;                                          /* jump to CTR    */
1771
1772                         ALIGNCODENOP;
1773                         break;
1774
1775                 case ICMD_GOTO:         /* ... ==> ...                                */
1776                 case ICMD_RET:          /* ... ==> ...                                */
1777                         M_BR(0);
1778                         codegen_addreference(cd, iptr->dst.block);
1779                         ALIGNCODENOP;
1780                         break;
1781
1782                 case ICMD_JSR:          /* ... ==> ...                                */
1783
1784                         if (jd->isleafmethod)
1785                                 M_MFLR(REG_ITMP2);
1786                         M_BL(0);
1787                         M_MFLR(REG_ITMP1);
1788                         M_IADD_IMM(REG_ITMP1, jd->isleafmethod ? 4*4 : 3*4, REG_ITMP1);
1789                         if (jd->isleafmethod)
1790                                 M_MTLR(REG_ITMP2);
1791                         M_BR(0);
1792                         codegen_addreference(cd, iptr->sx.s23.s3.jsrtarget.block);
1793                         break;
1794
1795                 case ICMD_IFNULL:       /* ..., value ==> ...                         */
1796
1797                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1798                         M_TST(s1);
1799                         M_BEQ(0);
1800                         codegen_addreference(cd, iptr->dst.block);
1801                         break;
1802
1803                 case ICMD_IFNONNULL:    /* ..., value ==> ...                         */
1804
1805                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1806                         M_TST(s1);
1807                         M_BNE(0);
1808                         codegen_addreference(cd, iptr->dst.block);
1809                         break;
1810
1811                 case ICMD_IFLT:
1812                 case ICMD_IFLE:
1813                 case ICMD_IFNE:
1814                 case ICMD_IFGT:
1815                 case ICMD_IFGE:
1816                 case ICMD_IFEQ:         /* ..., value ==> ...                         */
1817
1818                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1819                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767))
1820                                 M_CMPI(s1, iptr->sx.val.i);
1821                         else {
1822                                 ICONST(REG_ITMP2, iptr->sx.val.i);
1823                                 M_CMP(s1, REG_ITMP2);
1824                         }
1825                         switch (iptr->opc) {
1826                         case ICMD_IFLT:
1827                                 M_BLT(0);
1828                                 break;
1829                         case ICMD_IFLE:
1830                                 M_BLE(0);
1831                                 break;
1832                         case ICMD_IFNE:
1833                                 M_BNE(0);
1834                                 break;
1835                         case ICMD_IFGT:
1836                                 M_BGT(0);
1837                                 break;
1838                         case ICMD_IFGE:
1839                                 M_BGE(0);
1840                                 break;
1841                         case ICMD_IFEQ:
1842                                 M_BEQ(0);
1843                                 break;
1844                         }
1845                         codegen_addreference(cd, iptr->dst.block);
1846                         break;
1847
1848                 #if 0
1849                 case ICMD_IF_LEQ:       /* ..., value ==> ...                         */
1850
1851                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1852                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1853                         if (iptr->sx.val.l == 0) {
1854                                 M_OR_TST(s1, s2, REG_ITMP3);
1855                         } else if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
1856                                 M_XOR_IMM(s2, 0, REG_ITMP2);
1857                                 M_XOR_IMM(s1, iptr->sx.val.l & 0xffff, REG_ITMP1);
1858                                 M_OR_TST(REG_ITMP1, REG_ITMP2, REG_ITMP3);
1859                         } else {
1860                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1861                                 M_XOR(s1, REG_ITMP3, REG_ITMP1);
1862                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1863                                 M_XOR(s2, REG_ITMP3, REG_ITMP2);
1864                                 M_OR_TST(REG_ITMP1, REG_ITMP2, REG_ITMP3);
1865                         }
1866                         M_BEQ(0);
1867                         codegen_addreference(cd, iptr->dst.block);
1868                         break;
1869
1870                 case ICMD_IF_LLT:       /* ..., value ==> ...                         */
1871                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1872                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1873                         if (iptr->sx.val.l == 0) {
1874                                 /* if high word is less than zero, the whole long is too */
1875                                 M_CMPI(s2, 0);
1876                         } else if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
1877                                 M_CMPI(s2, 0);
1878                                 M_BLT(0);
1879                                 codegen_addreference(cd, iptr->dst.block);
1880                                 M_BGT(2);
1881                                 M_CMPUI(s1, iptr->sx.val.l & 0xffff);
1882                         } else {
1883                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1884                                 M_CMP(s2, REG_ITMP3);
1885                                 M_BLT(0);
1886                                 codegen_addreference(cd, iptr->dst.block);
1887                                 M_BGT(3);
1888                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1889                                 M_CMPU(s1, REG_ITMP3);
1890                         }
1891                         M_BLT(0);
1892                         codegen_addreference(cd, iptr->dst.block);
1893                         break;
1894
1895                 case ICMD_IF_LLE:       /* ..., value ==> ...                         */
1896
1897                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1898                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1899 /*                      if (iptr->sx.val.l == 0) { */
1900 /*                              M_OR(s1, s2, REG_ITMP3); */
1901 /*                              M_CMPI(REG_ITMP3, 0); */
1902
1903 /*                      } else  */
1904                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
1905                                 M_CMPI(s2, 0);
1906                                 M_BLT(0);
1907                                 codegen_addreference(cd, iptr->dst.block);
1908                                 M_BGT(2);
1909                                 M_CMPUI(s1, iptr->sx.val.l & 0xffff);
1910                         } else {
1911                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1912                                 M_CMP(s2, REG_ITMP3);
1913                                 M_BLT(0);
1914                                 codegen_addreference(cd, iptr->dst.block);
1915                                 M_BGT(3);
1916                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1917                                 M_CMPU(s1, REG_ITMP3);
1918                         }
1919                         M_BLE(0);
1920                         codegen_addreference(cd, iptr->dst.block);
1921                         break;
1922
1923                 case ICMD_IF_LNE:       /* ..., value ==> ...                         */
1924
1925                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1926                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1927                         if (iptr->sx.val.l == 0) {
1928                                 M_OR_TST(s1, s2, REG_ITMP3);
1929                         } else if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
1930                                 M_XOR_IMM(s2, 0, REG_ITMP2);
1931                                 M_XOR_IMM(s1, iptr->sx.val.l & 0xffff, REG_ITMP1);
1932                                 M_OR_TST(REG_ITMP1, REG_ITMP2, REG_ITMP3);
1933                         } else {
1934                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1935                                 M_XOR(s1, REG_ITMP3, REG_ITMP1);
1936                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1937                                 M_XOR(s2, REG_ITMP3, REG_ITMP2);
1938                                 M_OR_TST(REG_ITMP1, REG_ITMP2, REG_ITMP3);
1939                         }
1940                         M_BNE(0);
1941                         codegen_addreference(cd, iptr->dst.block);
1942                         break;
1943
1944                 case ICMD_IF_LGT:       /* ..., value ==> ...                         */
1945
1946                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1947                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1948 /*                      if (iptr->sx.val.l == 0) { */
1949 /*                              M_OR(s1, s2, REG_ITMP3); */
1950 /*                              M_CMPI(REG_ITMP3, 0); */
1951
1952 /*                      } else  */
1953                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
1954                                 M_CMPI(s2, 0);
1955                                 M_BGT(0);
1956                                 codegen_addreference(cd, iptr->dst.block);
1957                                 M_BLT(2);
1958                                 M_CMPUI(s1, iptr->sx.val.l & 0xffff);
1959                         } else {
1960                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1961                                 M_CMP(s2, REG_ITMP3);
1962                                 M_BGT(0);
1963                                 codegen_addreference(cd, iptr->dst.block);
1964                                 M_BLT(3);
1965                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1966                                 M_CMPU(s1, REG_ITMP3);
1967                         }
1968                         M_BGT(0);
1969                         codegen_addreference(cd, iptr->dst.block);
1970                         break;
1971
1972                 case ICMD_IF_LGE:       /* ..., value ==> ...                         */
1973
1974                         /* TODO, remove me */
1975                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1976                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1977                         if (iptr->sx.val.l == 0) {
1978                                 /* if high word is greater equal zero, the whole long is too */
1979                                 M_CMPI(s2, 0);
1980                         } else if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
1981                                 M_CMPI(s2, 0);
1982                                 M_BGT(0);
1983                                 codegen_addreference(cd, iptr->dst.block);
1984                                 M_BLT(2);
1985                                 M_CMPUI(s1, iptr->sx.val.l & 0xffff);
1986                         } else {
1987                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1988                                 M_CMP(s2, REG_ITMP3);
1989                                 M_BGT(0);
1990                                 codegen_addreference(cd, iptr->dst.block);
1991                                 M_BLT(3);
1992                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1993                                 M_CMPU(s1, REG_ITMP3);
1994                         }
1995                         M_BGE(0);
1996                         codegen_addreference(cd, iptr->dst.block);
1997                         break;
1998                 #endif
1999
2000                 case ICMD_IF_ICMPEQ:    /* ..., value, value ==> ...                  */
2001                 case ICMD_IF_ACMPEQ:    /* op1 = target JavaVM pc                     */
2002                 case ICMD_IF_LCMPEQ:
2003
2004                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2005                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2006                         M_CMP(s1, s2);
2007                         M_BEQ(0);
2008                         codegen_addreference(cd, iptr->dst.block);
2009                         break;
2010
2011                 case ICMD_IF_ICMPNE:    /* ..., value, value ==> ...                  */
2012                 case ICMD_IF_ACMPNE:    /* op1 = target JavaVM pc                     */
2013                 case ICMD_IF_LCMPNE:
2014
2015                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2016                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2017                         M_CMP(s1, s2);
2018                         M_BNE(0);
2019                         codegen_addreference(cd, iptr->dst.block);
2020                         break;
2021
2022
2023                 case ICMD_IF_ICMPLT:    /* ..., value, value ==> ...                  */
2024                 case ICMD_IF_LCMPLT:
2025
2026                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2027                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2028                         M_CMP(s1, s2);
2029                         M_BLT(0);
2030                         codegen_addreference(cd, iptr->dst.block);
2031                         break;
2032
2033                 case ICMD_IF_ICMPGT:    /* ..., value, value ==> ...                  */
2034                 case ICMD_IF_LCMPGT:
2035
2036                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2037                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2038                         M_CMP(s1, s2);
2039                         M_BGT(0);
2040                         codegen_addreference(cd, iptr->dst.block);
2041                         break;
2042
2043                 case ICMD_IF_ICMPLE:    /* ..., value, value ==> ...                  */
2044                 case ICMD_IF_LCMPLE:
2045
2046                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2047                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2048                         M_CMP(s1, s2);
2049                         M_BLE(0);
2050                         codegen_addreference(cd, iptr->dst.block);
2051                         break;
2052
2053                 case ICMD_IF_ICMPGE:    /* ..., value, value ==> ...                  */
2054                 case ICMD_IF_LCMPGE:
2055
2056                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2057                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2058                         M_CMP(s1, s2);
2059                         M_BGE(0);
2060                         codegen_addreference(cd, iptr->dst.block);
2061                         break;
2062
2063
2064                 case ICMD_LRETURN:      /* ..., retvalue ==> ...                      */
2065                 case ICMD_IRETURN:      /* ..., retvalue ==> ...                      */
2066
2067                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2068                         M_LNGMOVE(s1, REG_RESULT);
2069                         goto nowperformreturn;
2070
2071                 case ICMD_ARETURN:      /* ..., retvalue ==> ...                      */
2072
2073                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2074                         M_LNGMOVE(s1, REG_RESULT);
2075
2076 #ifdef ENABLE_VERIFIER
2077                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2078                                 codegen_addpatchref(cd, PATCHER_athrow_areturn,
2079                                                                         iptr->sx.s23.s2.uc, 0);
2080
2081                                 if (opt_showdisassemble)
2082                                         M_NOP;
2083                         }
2084 #endif /* ENABLE_VERIFIER */
2085
2086                         goto nowperformreturn;
2087
2088                 case ICMD_FRETURN:      /* ..., retvalue ==> ...                      */
2089                 case ICMD_DRETURN:
2090
2091                         s1 = emit_load_s1(jd, iptr, REG_FRESULT);
2092                         M_FLTMOVE(s1, REG_FRESULT);
2093                         goto nowperformreturn;
2094
2095                 case ICMD_RETURN:      /* ...  ==> ...                                */
2096
2097 nowperformreturn:
2098                         {
2099                         s4 i, p;
2100
2101                         p = stackframesize;
2102
2103                         /* call trace function */
2104
2105 #if !defined(NDEBUG)
2106                         if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
2107                                 emit_verbosecall_exit(jd);
2108                         }
2109 #endif
2110
2111 #if defined(ENABLE_THREADS)
2112                         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
2113                                 disp = dseg_addaddress(cd, LOCK_monitor_exit);
2114                                 M_ALD(REG_ITMP3, REG_PV, disp);
2115                                 M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
2116                                 M_MTCTR(REG_ITMP3);
2117
2118                                 /* we need to save the proper return value */
2119
2120                                 switch (iptr->opc) {
2121                                 case ICMD_LRETURN:
2122                                 case ICMD_IRETURN:
2123                                 case ICMD_ARETURN:
2124                                         /* fall through */
2125                                         M_LST(REG_RESULT , REG_SP, rd->memuse * 8 + 8);
2126                                         break;
2127                                 case ICMD_FRETURN:
2128                                         M_FST(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
2129                                         break;
2130                                 case ICMD_DRETURN:
2131                                         M_DST(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
2132                                         break;
2133                                 }
2134
2135                                 M_ALD(rd->argintregs[0], REG_SP, rd->memuse * 8);
2136                                 M_JSR;
2137
2138                                 /* and now restore the proper return value */
2139
2140                                 switch (iptr->opc) {
2141                                 case ICMD_LRETURN:
2142                                 case ICMD_IRETURN:
2143                                 case ICMD_ARETURN:
2144                                         /* fall through */
2145                                         M_LLD(REG_RESULT , REG_SP, rd->memuse * 8 + 8);
2146                                         break;
2147                                 case ICMD_FRETURN:
2148                                         M_FLD(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
2149                                         break;
2150                                 case ICMD_DRETURN:
2151                                         M_DLD(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
2152                                         break;
2153                                 }
2154                         }
2155 #endif
2156
2157                         /* restore return address                                         */
2158
2159                         if (!jd->isleafmethod) {
2160                                 /* ATTENTION: Don't use REG_ZERO (r0) here, as M_ALD
2161                                    may have a displacement overflow. */
2162
2163                                 M_ALD(REG_ITMP1, REG_SP, p * 8 + LA_LR_OFFSET);
2164                                 M_MTLR(REG_ITMP1);
2165                         }
2166
2167                         /* restore saved registers                                        */
2168
2169                         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
2170                                 p--; M_LLD(rd->savintregs[i], REG_SP, p * 8);
2171                         }
2172                         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
2173                                 p--; M_DLD(rd->savfltregs[i], REG_SP, p * 8);
2174                         }
2175
2176                         /* deallocate stack                                               */
2177
2178                         if (stackframesize)
2179                                 M_LDA(REG_SP, REG_SP, stackframesize * 8);
2180
2181                         M_RET;
2182                         ALIGNCODENOP;
2183                         }
2184                         break;
2185
2186
2187                 case ICMD_TABLESWITCH:  /* ..., index ==> ...                         */
2188                         {
2189                         s4 i, l;
2190                         branch_target_t *table;
2191
2192                         table = iptr->dst.table;
2193
2194                         l = iptr->sx.s23.s2.tablelow;
2195                         i = iptr->sx.s23.s3.tablehigh;
2196
2197                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2198                         if (l == 0) {
2199                                 M_INTMOVE(s1, REG_ITMP1);
2200                         } else if (l <= 32768) {
2201                                 M_LDA(REG_ITMP1, s1, -l);
2202                         } else {
2203                                 ICONST(REG_ITMP2, l);
2204                                 M_SUB(s1, REG_ITMP2, REG_ITMP1);
2205                         }
2206
2207                         /* number of targets */
2208                         i = i - l + 1;
2209
2210                         /* range check */
2211
2212                         M_CMPUI(REG_ITMP1, i - 1);
2213                         M_BGT(0);
2214                         codegen_addreference(cd, table[0].block);
2215
2216                         /* build jump table top down and use address of lowest entry */
2217
2218                         table += i;
2219
2220                         while (--i >= 0) {
2221                                 dseg_addtarget(cd, table->block);
2222                                 --table;
2223                                 }
2224                         }
2225
2226                         /* length of dataseg after last dseg_addtarget is used by load */
2227
2228                         M_SLL_IMM(REG_ITMP1, 2, REG_ITMP1);
2229                         M_IADD(REG_ITMP1, REG_PV, REG_ITMP2);
2230                         M_ALD(REG_ITMP2, REG_ITMP2, -(cd->dseglen));
2231                         M_MTCTR(REG_ITMP2);
2232                         M_RTS;
2233                         ALIGNCODENOP;
2234                         break;
2235
2236
2237                 case ICMD_LOOKUPSWITCH: /* ..., key ==> ...                           */
2238                         {
2239                         s4 i, val;
2240                         lookup_target_t *lookup;
2241
2242                         lookup = iptr->dst.lookup;
2243
2244                         i = iptr->sx.s23.s2.lookupcount;
2245
2246                         MCODECHECK((i<<2)+8);
2247                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2248                         while (--i >= 0) {
2249                                 val = lookup->value;
2250                                 if ((val >= -32768) && (val <= 32767)) {
2251                                         M_CMPI(s1, val);
2252                                 } else {
2253                                         a = dseg_adds4(cd, val);
2254                                         M_ILD(REG_ITMP2, REG_PV, a);
2255                                         M_CMP(s1, REG_ITMP2);
2256                                 }
2257                                 M_BEQ(0);
2258                                 codegen_addreference(cd, lookup->target.block);
2259                                 ++lookup;
2260                         }
2261
2262                         M_BR(0);
2263                         codegen_addreference(cd, iptr->sx.s23.s3.lookupdefault.block);
2264
2265                         ALIGNCODENOP;
2266                         break;
2267                         }
2268
2269
2270                 case ICMD_BUILTIN:      /* ..., [arg1, [arg2 ...]] ==> ...            */
2271
2272                         bte = iptr->sx.s23.s3.bte;
2273                         md = bte->md;
2274                         goto gen_method;
2275
2276                 case ICMD_INVOKESTATIC: /* ..., [arg1, [arg2 ...]] ==> ...            */
2277
2278                 case ICMD_INVOKESPECIAL:/* ..., objectref, [arg1, [arg2 ...]] ==> ... */
2279                 case ICMD_INVOKEVIRTUAL:/* op1 = arg count, val.a = method pointer    */
2280                 case ICMD_INVOKEINTERFACE:
2281
2282                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2283                                 md = iptr->sx.s23.s3.um->methodref->parseddesc.md;
2284                                 lm = NULL;
2285                         }
2286                         else {
2287                                 lm = iptr->sx.s23.s3.fmiref->p.method;
2288                                 md = lm->parseddesc;
2289                         }
2290
2291 gen_method:
2292                         s3 = md->paramcount;
2293
2294                         MCODECHECK((s3 << 1) + 64);
2295
2296                         /* copy arguments to registers or stack location */
2297
2298                         for (s3 = s3 - 1; s3 >= 0; s3--) {
2299                                 var = VAR(iptr->sx.s23.s2.args[s3]);
2300
2301                                 if (var->flags & PREALLOC)
2302                                         continue;
2303
2304                                 if (IS_INT_LNG_TYPE(var->type)) {
2305                                         if (!md->params[s3].inmemory) {
2306                                                 s1 = rd->argintregs[md->params[s3].regoff];
2307                                                 d = emit_load(jd, iptr, var, s1);
2308                                                 M_LNGMOVE(d, s1);
2309                                         } else {
2310                                                 d = emit_load(jd, iptr, var, REG_ITMP1);
2311                                                 M_LST(d, REG_SP, md->params[s3].regoff * 8);
2312                                         }
2313                                 } else {
2314                                         if (!md->params[s3].inmemory) {
2315                                                 s1 = rd->argfltregs[md->params[s3].regoff];
2316                                                 d = emit_load(jd, iptr, var, s1);
2317                                                 M_FLTMOVE(d, s1);
2318                                         } else {
2319                                                 d = emit_load(jd, iptr, var, REG_FTMP1);
2320                                                 if (IS_2_WORD_TYPE(var->type))
2321                                                         M_DST(d, REG_SP, md->params[s3].regoff * 8);
2322                                                 else
2323                                                         M_FST(d, REG_SP, md->params[s3].regoff * 8);
2324                                         }
2325                                 }
2326                         } /* end of for */
2327
2328                         switch (iptr->opc) {
2329                         case ICMD_BUILTIN:
2330                                 disp = dseg_addaddress(cd, bte->fp);
2331                                 d = md->returntype.type;
2332
2333                                 M_ALD(REG_PV, REG_PV, disp);    /* pointer to built-in-function descriptor */
2334                                 M_ALD(REG_ITMP1, REG_PV, 0);    /* function entry point address, what about TOC */
2335                                 M_MTCTR(REG_ITMP1);
2336                                 M_JSR;
2337
2338                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2339                                 M_MFLR(REG_ITMP1);
2340                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2341
2342
2343                                 if (INSTRUCTION_MUST_CHECK(iptr)) {
2344                                         M_CMPI(REG_RESULT, 0);
2345                                         M_BEQ(0);
2346                                         codegen_add_fillinstacktrace_ref(cd);
2347                                 }
2348                                 break;
2349
2350                         case ICMD_INVOKESPECIAL:
2351                                 gen_nullptr_check(rd->argintregs[0]);
2352                                 M_ILD(REG_ITMP1, rd->argintregs[0], 0); /* hardware nullptr   */
2353                                 /* fall through */
2354
2355                         case ICMD_INVOKESTATIC:
2356                                 if (lm == NULL) {
2357                                         unresolved_method *um = iptr->sx.s23.s3.um;
2358
2359                                         disp = dseg_addaddress(cd, NULL);
2360
2361                                         codegen_addpatchref(cd, PATCHER_invokestatic_special,
2362                                                                                 um, disp);
2363
2364                                         if (opt_showdisassemble)
2365                                                 M_NOP;
2366
2367                                         d = md->returntype.type;
2368
2369                                 } else {
2370                                         disp = dseg_addaddress(cd, lm->stubroutine);
2371                                         d = md->returntype.type;
2372                                 }
2373
2374                                 M_NOP;
2375                                 M_ALD(REG_PV, REG_PV, disp);
2376                                 M_MTCTR(REG_PV);
2377                                 M_JSR;
2378                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2379                                 M_MFLR(REG_ITMP1);
2380                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2381                                 break;
2382
2383                         case ICMD_INVOKEVIRTUAL:
2384                                 gen_nullptr_check(rd->argintregs[0]);
2385
2386                                 if (lm == NULL) {
2387                                         unresolved_method *um = iptr->sx.s23.s3.um;
2388
2389                                         codegen_addpatchref(cd, PATCHER_invokevirtual, um, 0);
2390
2391                                         if (opt_showdisassemble)
2392                                                 M_NOP;
2393
2394                                         s1 = 0;
2395                                         d = md->returntype.type;
2396
2397                                 } else {
2398                                         s1 = OFFSET(vftbl_t, table[0]) +
2399                                                 sizeof(methodptr) * lm->vftblindex;
2400                                         d = md->returntype.type;
2401                                 }
2402
2403                                 M_ALD(REG_METHODPTR, rd->argintregs[0],
2404                                           OFFSET(java_objectheader, vftbl));
2405                                 M_ALD(REG_PV, REG_METHODPTR, s1);
2406                                 M_MTCTR(REG_PV);
2407                                 M_JSR;
2408                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2409                                 M_MFLR(REG_ITMP1);
2410                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2411                                 break;
2412
2413                         case ICMD_INVOKEINTERFACE:
2414                                 gen_nullptr_check(rd->argintregs[0]);
2415
2416                                 if (lm == NULL) {
2417                                         unresolved_method *um = iptr->sx.s23.s3.um;
2418
2419                                         codegen_addpatchref(cd, PATCHER_invokeinterface, um, 0);
2420
2421                                         if (opt_showdisassemble)
2422                                                 M_NOP;
2423
2424                                         s1 = 0;
2425                                         s2 = 0;
2426                                         d = md->returntype.type;
2427
2428                                 } else {
2429                                         s1 = OFFSET(vftbl_t, interfacetable[0]) -
2430                                                 sizeof(methodptr*) * lm->class->index;
2431
2432                                         s2 = sizeof(methodptr) * (lm - lm->class->methods);
2433
2434                                         d = md->returntype.type;
2435                                 }
2436
2437                                 M_ALD(REG_METHODPTR, rd->argintregs[0],
2438                                           OFFSET(java_objectheader, vftbl));
2439                                 M_ALD(REG_METHODPTR, REG_METHODPTR, s1);
2440                                 M_ALD(REG_PV, REG_METHODPTR, s2);
2441                                 M_MTCTR(REG_PV);
2442                                 M_JSR;
2443                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2444                                 M_MFLR(REG_ITMP1);
2445                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2446                                 break;
2447                         }
2448
2449                         /* d contains return type */
2450
2451                         if (d != TYPE_VOID) {
2452                                 if (IS_INT_LNG_TYPE(d)) {
2453                                         s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2454                                         M_MOV(REG_RESULT, s1);
2455                                 } else {
2456                                         s1 = codegen_reg_of_dst(jd, iptr, REG_FRESULT);
2457                                         M_FLTMOVE(REG_FRESULT, s1);
2458                                 }
2459                                 emit_store_dst(jd, iptr, s1);
2460                         }
2461                         break;
2462
2463
2464                 case ICMD_CHECKCAST:  /* ..., objectref ==> ..., objectref            */
2465                                       /* val.a: (classinfo*) superclass               */
2466
2467                         /*  superclass is an interface:
2468                          *
2469                          *  OK if ((sub == NULL) ||
2470                          *         (sub->vftbl->interfacetablelength > super->index) &&
2471                          *         (sub->vftbl->interfacetable[-super->index] != NULL));
2472                          *
2473                          *  superclass is a class:
2474                          *
2475                          *  OK if ((sub == NULL) || (0
2476                          *         <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2477                          *         super->vftbl->diffvall));
2478                          */
2479
2480                         if (!(iptr->flags.bits & INS_FLAG_ARRAY)) {
2481                                 /* object type cast-check */
2482
2483                                 classinfo *super;
2484                                 vftbl_t   *supervftbl;
2485                                 s4         superindex;
2486
2487                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2488                                         super = NULL;
2489                                         superindex = 0;
2490                                         supervftbl = NULL;
2491                                 }
2492                                 else {
2493                                         super = iptr->sx.s23.s3.c.cls;
2494                                         superindex = super->index;
2495                                         supervftbl = super->vftbl;
2496                                 }
2497
2498 #if defined(ENABLE_THREADS)
2499                                 codegen_threadcritrestart(cd, cd->mcodeptr - cd->mcodebase);
2500 #endif
2501                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2502
2503                                 /* calculate interface checkcast code size */
2504
2505                                 s2 = 7;
2506                                 if (!super)
2507                                         s2 += (opt_showdisassemble ? 1 : 0);
2508
2509                                 /* calculate class checkcast code size */
2510
2511                                 s3 = 8 + (s1 == REG_ITMP1);
2512                                 if (!super)
2513                                         s3 += (opt_showdisassemble ? 1 : 0);
2514
2515                                 /* if class is not resolved, check which code to call */
2516
2517                                 if (!super) {
2518                                         M_TST(s1);
2519                                         M_BEQ(3 + (opt_showdisassemble ? 1 : 0) + s2 + 1 + s3);
2520
2521                                         disp = dseg_adds4(cd, 0);                     /* super->flags */
2522
2523                                         codegen_addpatchref(cd,
2524                                                                                 PATCHER_checkcast_instanceof_flags,
2525                                                                                 iptr->sx.s23.s3.c.ref,
2526                                                                                 disp);
2527
2528                                         if (opt_showdisassemble)
2529                                                 M_NOP;
2530
2531                                         M_ILD(REG_ITMP2, REG_PV, disp);
2532                                         M_AND_IMM(REG_ITMP2, ACC_INTERFACE, REG_ITMP2);
2533                                         M_BEQ(s2 + 1);
2534                                 }
2535
2536                                 /* interface checkcast code */
2537
2538                                 if (!super || (super->flags & ACC_INTERFACE)) {
2539                                         if (super) {
2540                                                 M_TST(s1);
2541                                                 M_BEQ(s2);
2542
2543                                         } else {
2544                                                 codegen_addpatchref(cd,
2545                                                                                         PATCHER_checkcast_instanceof_interface,
2546                                                                                         iptr->sx.s23.s3.c.ref,
2547                                                                                         0);
2548
2549                                                 if (opt_showdisassemble)
2550                                                         M_NOP;
2551                                         }
2552
2553                                         M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2554                                         M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, interfacetablelength));
2555                                         M_LDATST(REG_ITMP3, REG_ITMP3, -superindex);
2556                                         M_BLE(0);
2557                                         codegen_add_classcastexception_ref(cd, s1);     /*XXX s1?? */
2558                                         M_ALD(REG_ITMP3, REG_ITMP2,
2559                                                   OFFSET(vftbl_t, interfacetable[0]) -
2560                                                   superindex * sizeof(methodptr*));
2561                                         M_TST(REG_ITMP3);
2562                                         M_BEQ(0);
2563                                         codegen_add_classcastexception_ref(cd, s1);     /*XXX s1??*/
2564
2565                                         if (!super)
2566                                                 M_BR(s3);
2567                                 }
2568
2569                                 /* class checkcast code */
2570
2571                                 if (!super || !(super->flags & ACC_INTERFACE)) {
2572                                         disp = dseg_addaddress(cd, supervftbl);
2573
2574                                         if (super) {
2575                                                 M_TST(s1);
2576                                                 M_BEQ(s3);
2577
2578                                         } else {
2579                                                 codegen_addpatchref(cd, PATCHER_checkcast_class,
2580                                                                                         iptr->sx.s23.s3.c.ref,
2581                                                                                         disp);
2582
2583                                                 if (opt_showdisassemble)
2584                                                         M_NOP;
2585                                         }
2586
2587                                         M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2588 #if defined(ENABLE_THREADS)
2589                                         codegen_threadcritstart(cd, cd->mcodeptr - cd->mcodebase);
2590 #endif
2591                                         M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2592                                         M_ALD(REG_ITMP2, REG_PV, disp);
2593                                         if (s1 != REG_ITMP1) {
2594                                                 M_ILD(REG_ITMP1, REG_ITMP2, OFFSET(vftbl_t, baseval));
2595                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2596 #if defined(ENABLE_THREADS)
2597                                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2598 #endif
2599                                                 M_SUB(REG_ITMP3, REG_ITMP1, REG_ITMP3);
2600                                         } else {
2601                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, baseval));
2602                                                 M_SUB(REG_ITMP3, REG_ITMP2, REG_ITMP3);
2603                                                 M_ALD(REG_ITMP2, REG_PV, disp);
2604                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2605 #if defined(ENABLE_THREADS)
2606                                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2607 #endif
2608                                         }
2609                                         M_CMP(REG_ITMP3, REG_ITMP2);
2610                                         M_BGT(0);
2611                                         codegen_add_classcastexception_ref(cd, s1); /* XXX s1? */
2612                                 }
2613                                 d = codegen_reg_of_dst(jd, iptr, s1);
2614
2615                         } else {
2616                                 /* array type cast-check */
2617
2618                                 s1 = emit_load_s1(jd, iptr, rd->argintregs[0]);
2619                                 M_INTMOVE(s1, rd->argintregs[0]);
2620
2621                                 disp = dseg_addaddress(cd, iptr->sx.s23.s3.c.cls);
2622
2623                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2624                                         codegen_addpatchref(cd, PATCHER_builtin_arraycheckcast,
2625                                                                                 iptr->sx.s23.s3.c.ref,
2626                                                                                 disp);
2627
2628                                         if (opt_showdisassemble)
2629                                                 M_NOP;
2630                                 }
2631
2632                                 M_ALD(rd->argintregs[1], REG_PV, disp);
2633                                 disp = dseg_addaddress(cd, BUILTIN_arraycheckcast);
2634                                 M_ALD(REG_ITMP2, REG_PV, disp);
2635                                 M_ALD(REG_ITMP2, REG_ITMP2, 0); /* TOC */
2636                                 M_MTCTR(REG_ITMP2);
2637                                 M_JSR;
2638                                 M_TST(REG_RESULT);
2639                                 M_BEQ(0);
2640                                 codegen_add_classcastexception_ref(cd, s1); /* XXX s1? */
2641
2642                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2643                                 d = codegen_reg_of_dst(jd, iptr, s1);
2644                         }
2645                         M_INTMOVE(s1, d);
2646                         emit_store_dst(jd, iptr, d);
2647                         break;
2648
2649                 case ICMD_INSTANCEOF: /* ..., objectref ==> ..., intresult            */
2650                                       /* val.a: (classinfo*) superclass               */
2651
2652                         /*  superclass is an interface:
2653                          *
2654                          *  return (sub != NULL) &&
2655                          *         (sub->vftbl->interfacetablelength > super->index) &&
2656                          *         (sub->vftbl->interfacetable[-super->index] != NULL);
2657                          *
2658                          *  superclass is a class:
2659                          *
2660                          *  return ((sub != NULL) && (0
2661                          *          <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2662                          *          super->vftbl->diffvall));
2663                          */
2664
2665                         {
2666                         classinfo *super;
2667                         vftbl_t   *supervftbl;
2668                         s4         superindex;
2669
2670                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2671                                 super = NULL;
2672                                 superindex = 0;
2673                                 supervftbl = NULL;
2674                         }
2675                         else {
2676                                 super = iptr->sx.s23.s3.c.cls;
2677                                 superindex = super->index;
2678                                 supervftbl = super->vftbl;
2679                         }
2680
2681 #if defined(ENABLE_THREADS)
2682             codegen_threadcritrestart(cd, cd->mcodeptr - cd->mcodebase);
2683 #endif
2684                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2685                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
2686                         if (s1 == d) {
2687                                 M_MOV(s1, REG_ITMP1);
2688                                 s1 = REG_ITMP1;
2689                         }
2690
2691                         /* calculate interface instanceof code size */
2692
2693                         s2 = 8;
2694                         if (!super)
2695                                 s2 += (opt_showdisassemble ? 1 : 0);
2696
2697                         /* calculate class instanceof code size */
2698
2699                         s3 = 10;
2700                         if (!super)
2701                                 s3 += (opt_showdisassemble ? 1 : 0);
2702
2703                         M_CLR(d);
2704
2705                         /* if class is not resolved, check which code to call */
2706
2707                         if (!super) {
2708                                 M_TST(s1);
2709                                 M_BEQ(3 + (opt_showdisassemble ? 1 : 0) + s2 + 1 + s3);
2710
2711                                 disp = dseg_adds4(cd, 0);                     /* super->flags */
2712
2713                                 codegen_addpatchref(cd, PATCHER_checkcast_instanceof_flags,
2714                                                                         iptr->sx.s23.s3.c.ref, disp);
2715
2716                                 if (opt_showdisassemble)
2717                                         M_NOP;
2718
2719                                 M_ILD(REG_ITMP3, REG_PV, disp);
2720                                 M_AND_IMM(REG_ITMP3, ACC_INTERFACE, REG_ITMP3);
2721                                 M_BEQ(s2 + 1);
2722                         }
2723
2724                         /* interface instanceof code */
2725
2726                         if (!super || (super->flags & ACC_INTERFACE)) {
2727                                 if (super) {
2728                                         M_TST(s1);
2729                                         M_BEQ(s2);
2730
2731                                 } else {
2732                                         codegen_addpatchref(cd,
2733                                                                                 PATCHER_checkcast_instanceof_interface,
2734                                                                                 iptr->sx.s23.s3.c.ref, 0);
2735
2736                                         if (opt_showdisassemble)
2737                                                 M_NOP;
2738                                 }
2739
2740                                 M_ALD(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
2741                                 M_ILD(REG_ITMP3, REG_ITMP1, OFFSET(vftbl_t, interfacetablelength));
2742                                 M_LDATST(REG_ITMP3, REG_ITMP3, -superindex);
2743                                 M_BLE(4);
2744                                 M_ALD(REG_ITMP1, REG_ITMP1,
2745                                           OFFSET(vftbl_t, interfacetable[0]) -
2746                                           superindex * sizeof(methodptr*));
2747                                 M_TST(REG_ITMP1);
2748                                 M_BEQ(1);
2749                                 M_IADD_IMM(REG_ZERO, 1, d);
2750
2751                                 if (!super)
2752                                         M_BR(s3);
2753                         }
2754
2755                         /* class instanceof code */
2756
2757                         if (!super || !(super->flags & ACC_INTERFACE)) {
2758                                 disp = dseg_addaddress(cd, supervftbl);
2759
2760                                 if (super) {
2761                                         M_TST(s1);
2762                                         M_BEQ(s3);
2763
2764                                 } else {
2765                                         codegen_addpatchref(cd, PATCHER_instanceof_class,
2766                                                                                 iptr->sx.s23.s3.c.ref,
2767                                                                                 disp);
2768
2769                                         if (opt_showdisassemble) {
2770                                                 M_NOP;
2771                                         }
2772                                 }
2773
2774                                 M_ALD(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
2775                                 M_ALD(REG_ITMP2, REG_PV, disp);
2776 #if defined(ENABLE_THREADS)
2777                                 codegen_threadcritstart(cd, cd->mcodeptr - cd->mcodebase);
2778 #endif
2779                                 M_ILD(REG_ITMP1, REG_ITMP1, OFFSET(vftbl_t, baseval));
2780                                 M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2781                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2782 #if defined(ENABLE_THREADS)
2783                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2784 #endif
2785                                 M_SUB(REG_ITMP1, REG_ITMP3, REG_ITMP1);
2786                                 M_CMPU(REG_ITMP1, REG_ITMP2);
2787                                 M_CLR(d);
2788                                 M_BGT(1);
2789                                 M_IADD_IMM(REG_ZERO, 1, d);
2790                         }
2791                         emit_store_dst(jd, iptr, d);
2792                         }
2793                         break;
2794
2795                 case ICMD_MULTIANEWARRAY:/* ..., cnt1, [cnt2, ...] ==> ..., arrayref  */
2796
2797                         /* check for negative sizes and copy sizes to stack if necessary  */
2798
2799                         MCODECHECK((iptr->s1.argcount << 1) + 64);
2800
2801                         for (s1 = iptr->s1.argcount; --s1 >= 0; ) {
2802
2803                                 var = VAR(iptr->sx.s23.s2.args[s1]);
2804
2805                                 /* copy SAVEDVAR sizes to stack */
2806
2807                                 if (!(var->flags & PREALLOC)) {
2808                                         s2 = emit_load(jd, iptr, var, REG_ITMP1);
2809 #if defined(__DARWIN__)
2810                                         M_IST(s2, REG_SP, LA_SIZE + (s1 + INT_ARG_CNT) * 4);
2811 #else
2812                                         M_IST(s2, REG_SP, LA_SIZE + (s1 + 3) * 4);
2813 #endif
2814                                 }
2815                         }
2816
2817                         /* a0 = dimension count */
2818
2819                         ICONST(rd->argintregs[0], iptr->s1.argcount);
2820
2821                         /* is patcher function set? */
2822
2823                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2824                                 disp = dseg_addaddress(cd, NULL);
2825
2826                                 codegen_addpatchref(cd, PATCHER_builtin_multianewarray,
2827                                                                         iptr->sx.s23.s3.c.ref, disp);
2828
2829                                 if (opt_showdisassemble)
2830                                         M_NOP;
2831
2832                         } else {
2833                                 disp = dseg_addaddress(cd, iptr->sx.s23.s3.c.cls);
2834                         }
2835
2836                         /* a1 = arraydescriptor */
2837
2838                         M_ALD(rd->argintregs[1], REG_PV, disp);
2839
2840                         /* a2 = pointer to dimensions = stack pointer */
2841
2842 #if defined(__DARWIN__)
2843                         M_LDA(rd->argintregs[2], REG_SP, LA_SIZE + INT_ARG_CNT * 4);
2844 #else
2845                         M_LDA(rd->argintregs[2], REG_SP, LA_SIZE + 3 * 4);
2846 #endif
2847
2848                         disp = dseg_addaddress(cd, BUILTIN_multianewarray);
2849                         M_ALD(REG_ITMP3, REG_PV, disp);
2850                         M_MTCTR(REG_ITMP3);
2851                         M_JSR;
2852
2853                         /* check for exception before result assignment */
2854
2855                         M_CMPI(REG_RESULT, 0);
2856                         M_BEQ(0);
2857                         codegen_add_fillinstacktrace_ref(cd);
2858
2859                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2860                         M_INTMOVE(REG_RESULT, d);
2861                         emit_store_dst(jd, iptr, d);
2862                         break;
2863
2864                 default:
2865                         *exceptionptr =
2866                                 new_internalerror("Unknown ICMD %d during code generation",
2867                                                                   iptr->opc);
2868                         return false;
2869         } /* switch */
2870
2871         } /* for instruction */
2872
2873         } /* if (bptr -> flags >= BBREACHED) */
2874         } /* for basic block */
2875
2876         dseg_createlinenumbertable(cd);
2877
2878
2879         /* generate exception and patcher stubs */
2880
2881         {
2882                 exceptionref *eref;
2883                 patchref     *pref;
2884                 u4            mcode;
2885                 u1           *savedmcodeptr;
2886                 u1           *tmpmcodeptr;
2887
2888                 savedmcodeptr = NULL;
2889
2890                 /* generate exception stubs */
2891
2892                 for (eref = cd->exceptionrefs; eref != NULL; eref = eref->next) {
2893                         gen_resolvebranch(cd->mcodebase + eref->branchpos,
2894                                                           eref->branchpos, cd->mcodeptr - cd->mcodebase);
2895
2896                         MCODECHECK(100);
2897
2898                         /* Check if the exception is an
2899                            ArrayIndexOutOfBoundsException.  If so, move index register
2900                            into REG_ITMP1. */
2901
2902                         if (eref->reg != -1)
2903                                 M_MOV(eref->reg, REG_ITMP1);
2904
2905                         /* calcuate exception address */
2906
2907                         M_LDA(REG_ITMP2_XPC, REG_PV, eref->branchpos - 4);
2908
2909                         /* move function to call into REG_ITMP3 */
2910
2911                         disp = dseg_addaddress(cd, eref->function);
2912                         M_ALD(REG_ITMP3, REG_PV, disp);
2913                         M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
2914
2915                         if (savedmcodeptr != NULL) {
2916                                 disp = ((u4 *) savedmcodeptr) - (((u4 *) cd->mcodeptr) + 1);
2917                                 M_BR(disp);
2918
2919                         } else {
2920                                 savedmcodeptr = cd->mcodeptr;
2921
2922                                 if (jd->isleafmethod) {
2923                                         M_MFLR(REG_ZERO);
2924                                         M_AST(REG_ZERO, REG_SP, stackframesize * 8 + LA_LR_OFFSET);
2925                                 }
2926
2927                                 M_MOV(REG_PV, rd->argintregs[0]);
2928                                 M_MOV(REG_SP, rd->argintregs[1]);
2929
2930                                 if (jd->isleafmethod)
2931                                         M_MOV(REG_ZERO, rd->argintregs[2]);
2932                                 else
2933                                         M_ALD(rd->argintregs[2],
2934                                                   REG_SP, stackframesize * 8 + LA_LR_OFFSET);
2935
2936                                 M_MOV(REG_ITMP2_XPC, rd->argintregs[3]);
2937                                 M_MOV(REG_ITMP1, rd->argintregs[4]);
2938
2939                                 M_STDU(REG_SP, REG_SP, -(LA_SIZE + 6 * 8));
2940                                 M_AST(REG_ITMP2_XPC, REG_SP, LA_SIZE + 5 * 8);
2941
2942                                 M_MTCTR(REG_ITMP3);
2943                                 M_JSR;
2944                                 M_MOV(REG_RESULT, REG_ITMP1_XPTR);
2945
2946                                 M_ALD(REG_ITMP2_XPC, REG_SP, LA_SIZE + 5 * 8);
2947                                 M_LADD_IMM(REG_SP, LA_SIZE + 6 * 8, REG_SP);
2948
2949                                 if (jd->isleafmethod) {
2950                                         /* XXX FIXME: REG_ZERO can cause problems here! */
2951                                         assert(stackframesize * 8 <= 32767);
2952
2953                                         M_ALD(REG_ZERO, REG_SP, stackframesize * 8 + LA_LR_OFFSET);
2954                                         M_MTLR(REG_ZERO);
2955                                 }
2956
2957                                 disp = dseg_addaddress(cd, asm_handle_exception);
2958                                 M_ALD(REG_ITMP3, REG_PV, disp);
2959                                 M_MTCTR(REG_ITMP3);
2960                                 M_RTS;
2961                         }
2962                 }
2963
2964
2965                 /* generate code patching stub call code */
2966
2967                 for (pref = cd->patchrefs; pref != NULL; pref = pref->next) {
2968                         /* check code segment size */
2969
2970                         MCODECHECK(16);
2971
2972                         /* Get machine code which is patched back in later. The
2973                            call is 1 instruction word long. */
2974
2975                         tmpmcodeptr = (u1 *) (cd->mcodebase + pref->branchpos);
2976
2977                         mcode = *((u4 *) tmpmcodeptr);
2978
2979                         /* Patch in the call to call the following code (done at
2980                            compile time). */
2981
2982                         savedmcodeptr = cd->mcodeptr;   /* save current mcodeptr          */
2983                         cd->mcodeptr  = tmpmcodeptr;    /* set mcodeptr to patch position */
2984
2985                         disp = ((u4 *) savedmcodeptr) - (((u4 *) tmpmcodeptr) + 1);
2986                         M_BR(disp);
2987
2988                         cd->mcodeptr = savedmcodeptr;   /* restore the current mcodeptr   */
2989
2990                         /* create stack frame - keep stack 16-byte aligned */
2991
2992                         M_AADD_IMM(REG_SP, -8 * 8, REG_SP);
2993
2994                         /* calculate return address and move it onto the stack */
2995
2996                         M_LDA(REG_ITMP3, REG_PV, pref->branchpos);
2997                         M_AST_INTERN(REG_ITMP3, REG_SP, 5 * 8);
2998
2999                         /* move pointer to java_objectheader onto stack */
3000
3001 #if defined(ENABLE_THREADS)
3002                         /* order reversed because of data segment layout */
3003
3004                         (void) dseg_addaddress(cd, NULL);                         /* flcword    */
3005                         (void) dseg_addaddress(cd, lock_get_initial_lock_word()); /* monitorPtr */
3006                         disp = dseg_addaddress(cd, NULL);                         /* vftbl      */
3007
3008                         M_LDA(REG_ITMP3, REG_PV, disp);
3009                         M_AST_INTERN(REG_ITMP3, REG_SP, 4 * 8);
3010 #else
3011                         /* do nothing */
3012 #endif
3013
3014                         /* move machine code onto stack */
3015
3016                         disp = dseg_adds4(cd, mcode);
3017                         M_ILD(REG_ITMP3, REG_PV, disp);
3018                         M_IST_INTERN(REG_ITMP3, REG_SP, 3 * 8);
3019
3020                         /* move class/method/field reference onto stack */
3021
3022                         disp = dseg_addaddress(cd, pref->ref);
3023                         M_ALD(REG_ITMP3, REG_PV, disp);
3024                         M_AST_INTERN(REG_ITMP3, REG_SP, 2 * 8);
3025
3026                         /* move data segment displacement onto stack */
3027
3028                         disp = dseg_addaddress(cd, pref->disp);
3029                         M_LLD(REG_ITMP3, REG_PV, disp);
3030                         M_IST_INTERN(REG_ITMP3, REG_SP, 1 * 8);
3031
3032                         /* move patcher function pointer onto stack */
3033
3034                         disp = dseg_addaddress(cd, pref->patcher);
3035                         M_ALD(REG_ITMP3, REG_PV, disp);
3036                         M_AST_INTERN(REG_ITMP3, REG_SP, 0 * 8);
3037
3038                         disp = dseg_addaddress(cd, asm_patcher_wrapper);
3039                         M_ALD(REG_ITMP3, REG_PV, disp);
3040                         M_MTCTR(REG_ITMP3);
3041                         M_RTS;
3042                 }
3043
3044                 /* generate replacement-out stubs */
3045
3046 #if 0
3047                 {
3048                         int i;
3049
3050                         replacementpoint = jd->code->rplpoints;
3051
3052                         for (i = 0; i < jd->code->rplpointcount; ++i, ++replacementpoint) {
3053                                 /* check code segment size */
3054
3055                                 MCODECHECK(100);
3056
3057                                 /* note start of stub code */
3058
3059                                 replacementpoint->outcode = (u1 *) (cd->mcodeptr - cd->mcodebase);
3060
3061                                 /* make machine code for patching */
3062
3063                                 tmpmcodeptr  = cd->mcodeptr;
3064                                 cd->mcodeptr = (u1 *) &(replacementpoint->mcode) + 1 /* big-endian */;
3065
3066                                 disp = (ptrint)((s4*)replacementpoint->outcode - (s4*)replacementpoint->pc) - 1;
3067                                 M_BR(disp);
3068
3069                                 cd->mcodeptr = tmpmcodeptr;
3070
3071                                 /* create stack frame - keep 16-byte aligned */
3072
3073                                 M_AADD_IMM(REG_SP, -4 * 4, REG_SP);
3074
3075                                 /* push address of `rplpoint` struct */
3076
3077                                 disp = dseg_addaddress(cd, replacementpoint);
3078                                 M_ALD(REG_ITMP3, REG_PV, disp);
3079                                 M_AST_INTERN(REG_ITMP3, REG_SP, 0 * 4);
3080
3081                                 /* jump to replacement function */
3082
3083                                 disp = dseg_addaddress(cd, asm_replacement_out);
3084                                 M_ALD(REG_ITMP3, REG_PV, disp);
3085                                 M_MTCTR(REG_ITMP3);
3086                                 M_RTS;
3087                         }
3088                 }
3089 #endif
3090         }
3091
3092         codegen_finish(jd);
3093
3094         /* everything's ok */
3095
3096         return true;
3097 }
3098
3099
3100 /* createcompilerstub **********************************************************
3101
3102    Creates a stub routine which calls the compiler.
3103
3104 *******************************************************************************/
3105
3106 #define COMPILERSTUB_DATASIZE    3 * SIZEOF_VOID_P
3107 #define COMPILERSTUB_CODESIZE    4 * 4
3108
3109 #define COMPILERSTUB_SIZE        COMPILERSTUB_DATASIZE + COMPILERSTUB_CODESIZE
3110
3111
3112 u1 *createcompilerstub(methodinfo *m)
3113 {
3114         u1          *s;                     /* memory to hold the stub            */
3115         ptrint      *d;
3116         codeinfo    *code;
3117         codegendata *cd;
3118         s4           dumpsize;
3119
3120         s = CNEW(u1, COMPILERSTUB_SIZE);
3121
3122         /* set data pointer and code pointer */
3123
3124         d = (ptrint *) s;
3125         s = s + COMPILERSTUB_DATASIZE;
3126
3127         /* mark start of dump memory area */
3128
3129         dumpsize = dump_size();
3130
3131         cd = DNEW(codegendata);
3132         cd->mcodeptr = s;
3133
3134         /* Store the codeinfo pointer in the same place as in the
3135            methodheader for compiled methods. */
3136
3137         code = code_codeinfo_new(m);
3138
3139         d[0] = (ptrint) asm_call_jit_compiler;
3140         d[1] = (ptrint) m;
3141         d[2] = (ptrint) code;
3142
3143         M_ALD_INTERN(REG_ITMP1, REG_PV, -2 * SIZEOF_VOID_P);
3144         M_ALD_INTERN(REG_PV, REG_PV, -3 * SIZEOF_VOID_P);
3145         M_MTCTR(REG_PV);
3146         M_RTS;
3147
3148         md_cacheflush((u1 *) d, COMPILERSTUB_SIZE);
3149
3150 #if defined(ENABLE_STATISTICS)
3151         if (opt_stat)
3152                 count_cstub_len += COMPILERSTUB_SIZE;
3153 #endif
3154
3155         /* release dump area */
3156
3157         dump_release(dumpsize);
3158
3159         return s;
3160 }
3161
3162
3163 /* createnativestub ************************************************************
3164
3165    Creates a stub routine which calls a native method.
3166
3167 *******************************************************************************/
3168
3169 u1 *createnativestub(functionptr f, jitdata *jd, methoddesc *nmd)
3170 {
3171         methodinfo   *m;
3172         codeinfo     *code;
3173         codegendata  *cd;
3174         registerdata *rd;
3175         s4            stackframesize;       /* size of stackframe if needed       */
3176         methoddesc   *md;
3177         s4            nativeparams;
3178         s4            i, j;                 /* count variables                    */
3179         s4            t;
3180         s4            s1, s2, disp;
3181         s4            funcdisp;
3182
3183         /* get required compiler data */
3184
3185         m    = jd->m;
3186         code = jd->code;
3187         cd   = jd->cd;
3188         rd   = jd->rd;
3189
3190         /* set some variables */
3191
3192         md = m->parseddesc;
3193         nativeparams = (m->flags & ACC_STATIC) ? 2 : 1;
3194
3195         /* calculate stackframe size */
3196
3197         stackframesize =
3198                 sizeof(stackframeinfo) / SIZEOF_VOID_P +
3199                 sizeof(localref_table) / SIZEOF_VOID_P +
3200                 4 +                            /* 4 stackframeinfo arguments (darwin)*/
3201                 nmd->paramcount  +
3202                 nmd->memuse;
3203
3204         stackframesize = (stackframesize + 3) & ~3; /* keep stack 16-byte aligned */
3205
3206         /* create method header */
3207
3208         (void) dseg_addaddress(cd, code);                      /* CodeinfoPointer */
3209         (void) dseg_adds4(cd, stackframesize * 8);             /* FrameSize       */
3210         (void) dseg_adds4(cd, 0);                              /* IsSync          */
3211         (void) dseg_adds4(cd, 0);                              /* IsLeaf          */
3212         (void) dseg_adds4(cd, 0);                              /* IntSave         */
3213         (void) dseg_adds4(cd, 0);                              /* FltSave         */
3214         (void) dseg_addlinenumbertablesize(cd);
3215         (void) dseg_adds4(cd, 0);                              /* ExTableSize     */
3216
3217         /* generate code */
3218
3219         M_MFLR(REG_ZERO);
3220         M_AST_INTERN(REG_ZERO, REG_SP, LA_LR_OFFSET);
3221         M_STDU(REG_SP, REG_SP, -(stackframesize * 8));
3222
3223 #if !defined(NDEBUG)
3224         if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
3225                 emit_verbosecall_enter(jd);
3226         }
3227 #endif
3228         /* get function address (this must happen before the stackframeinfo) */
3229
3230         funcdisp = dseg_addaddress(cd, f);
3231
3232 #if !defined(WITH_STATIC_CLASSPATH)
3233         if (f == NULL) {
3234                 codegen_addpatchref(cd, PATCHER_resolve_native, m, funcdisp);
3235
3236                 if (opt_showdisassemble)
3237                         M_NOP;
3238         }
3239 #endif
3240
3241         /* save integer and float argument registers */
3242
3243         j = 0;
3244
3245         for (i = 0; i < md->paramcount; i++) {
3246                 t = md->paramtypes[i].type;
3247
3248                 if (IS_INT_LNG_TYPE(t)) {
3249                         if (!md->params[i].inmemory) {
3250                                 s1 = md->params[i].regoff;
3251                                 M_LST(rd->argintregs[s1], REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + j * 8);
3252                                 j++;
3253                         }
3254                 }
3255         }
3256
3257         for (i = 0; i < md->paramcount; i++) {
3258                 if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
3259                         if (!md->params[i].inmemory) {
3260                                 s1 = md->params[i].regoff;
3261                                 M_DST(rd->argfltregs[s1], REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + j * 8);
3262                                 j++;
3263                         }
3264                 }
3265         }
3266
3267         /* create native stack info */
3268
3269         M_AADD_IMM(REG_SP, stackframesize * 8, rd->argintregs[0]);
3270         M_MOV(REG_PV, rd->argintregs[1]);
3271         M_AADD_IMM(REG_SP, stackframesize * 8, rd->argintregs[2]);
3272         M_ALD(rd->argintregs[3], REG_SP, stackframesize * 8 + LA_LR_OFFSET);
3273         disp = dseg_addaddress(cd, codegen_start_native_call);
3274
3275         M_ALD(REG_ITMP1, REG_PV, disp);
3276         M_ALD(REG_ITMP1, REG_ITMP1, 0);         /* TOC */
3277         M_MTCTR(REG_ITMP1);
3278         M_JSR;
3279
3280         /* restore integer and float argument registers */
3281
3282         j = 0;
3283
3284         for (i = 0; i < md->paramcount; i++) {
3285                 t = md->paramtypes[i].type;
3286
3287                 if (IS_INT_LNG_TYPE(t)) {
3288                         if (!md->params[i].inmemory) {
3289                                 s1 = md->params[i].regoff;
3290                                 M_LLD(rd->argintregs[s1], REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + j * 8);
3291                                 j++;
3292                         }
3293                 }
3294         }
3295
3296         for (i = 0; i < md->paramcount; i++) {
3297                 if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
3298                         if (!md->params[i].inmemory) {
3299                                 s1 = md->params[i].regoff;
3300                                 M_DLD(rd->argfltregs[s1], REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + j * 8);
3301                                 j++;
3302                         }
3303                 }
3304         }
3305
3306         /* copy or spill arguments to new locations */
3307
3308         for (i = md->paramcount - 1, j = i + nativeparams; i >= 0; i--, j--) {
3309                 t = md->paramtypes[i].type;
3310
3311                 if (IS_INT_LNG_TYPE(t)) {
3312                         if (!md->params[i].inmemory) {
3313                                 s1 = rd->argintregs[md->params[i].regoff];
3314
3315                                 if (!nmd->params[j].inmemory) {
3316                                         s2 = rd->argintregs[nmd->params[j].regoff];
3317                                         M_INTMOVE(s1, s2);
3318                                 } else {
3319                                         s2 = nmd->params[j].regoff;
3320                                         M_LST(s1, REG_SP, s2 * 8);
3321                                 }
3322
3323                         } else {
3324                                 s1 = md->params[i].regoff + stackframesize;
3325                                 s2 = nmd->params[j].regoff;
3326
3327                                 M_LLD(REG_ITMP1, REG_SP, s1 * 8);
3328                                 M_LST(REG_ITMP1, REG_SP, s2 * 8);
3329                         }
3330
3331                 } else {
3332                         /* We only copy spilled float arguments, as the float
3333                            argument registers keep unchanged. */
3334
3335                         if (md->params[i].inmemory) {
3336                                 s1 = md->params[i].regoff + stackframesize;
3337                                 s2 = nmd->params[j].regoff;
3338
3339                                 if (IS_2_WORD_TYPE(t)) {
3340                                         M_DLD(REG_FTMP1, REG_SP, s1 * 8);
3341                                         M_DST(REG_FTMP1, REG_SP, s2 * 8);
3342
3343                                 } else {
3344                                         M_FLD(REG_FTMP1, REG_SP, s1 * 8);
3345                                         M_FST(REG_FTMP1, REG_SP, s2 * 8);
3346                                 }
3347                         }
3348                 }
3349         }
3350
3351         /* put class into second argument register */
3352
3353         if (m->flags & ACC_STATIC) {
3354                 disp = dseg_addaddress(cd, m->class);
3355                 M_ALD(rd->argintregs[1], REG_PV, disp);
3356         }
3357
3358         /* put env into first argument register */
3359
3360         disp = dseg_addaddress(cd, _Jv_env);
3361         M_ALD(rd->argintregs[0], REG_PV, disp);
3362
3363         /* generate the actual native call */
3364         /* native functions have a different TOC for sure */
3365
3366         M_AST(REG_TOC, REG_SP, 40);     /* save old TOC */
3367         M_ALD(REG_ITMP3, REG_PV, funcdisp);
3368         M_ALD(REG_TOC, REG_ITMP3, 8);   /* load TOC from func. descriptor */
3369         M_ALD(REG_ITMP3, REG_ITMP3, 0);
3370         M_MTCTR(REG_ITMP3);
3371         M_JSR;
3372         M_ALD(REG_TOC, REG_SP, 40);     /* restore TOC */
3373
3374         M_NOP;
3375         M_NOP;
3376         M_NOP;
3377
3378         /* save return value */
3379
3380         if (md->returntype.type != TYPE_VOID) {
3381                 if (IS_INT_LNG_TYPE(md->returntype.type)) {
3382                         M_LST(REG_RESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
3383                 }
3384                 else {
3385                         if (IS_2_WORD_TYPE(md->returntype.type))
3386                                 M_DST(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
3387                         else
3388                                 M_FST(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);  /* FIXME, needed ?*/
3389                 }
3390         }
3391
3392         /* print call trace */
3393 #if ! defined(NDEBGUU)
3394         if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
3395                 emit_verbosecall_exit(jd);
3396         }
3397 #endif
3398         /* remove native stackframe info */
3399
3400         M_NOP;
3401         M_NOP;
3402         M_NOP;
3403
3404         M_AADD_IMM(REG_SP, stackframesize * 8, rd->argintregs[0]);
3405         disp = dseg_addaddress(cd, codegen_finish_native_call);
3406         M_ALD(REG_ITMP1, REG_PV, disp);
3407         M_ALD(REG_ITMP1, REG_ITMP1, 0); /* XXX what about TOC? */
3408         M_MTCTR(REG_ITMP1);
3409         M_JSR;
3410         M_MOV(REG_RESULT, REG_ITMP1_XPTR);
3411
3412         /* restore return value */
3413
3414         if (md->returntype.type != TYPE_VOID) {
3415                 if (IS_INT_LNG_TYPE(md->returntype.type)) {
3416                         M_LLD(REG_RESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
3417                 }
3418                 else {
3419                         if (IS_2_WORD_TYPE(md->returntype.type))
3420                                 M_DLD(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
3421                         else
3422                                 M_FLD(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
3423                 }
3424         }
3425
3426         M_ALD(REG_ITMP2_XPC, REG_SP, stackframesize * 8 + LA_LR_OFFSET);
3427         M_MTLR(REG_ITMP2_XPC);
3428         M_LDA(REG_SP, REG_SP, stackframesize * 8); /* remove stackframe           */
3429
3430         /* check for exception */
3431
3432         M_TST(REG_ITMP1_XPTR);
3433         M_BNE(1);                           /* if no exception then return        */
3434
3435         M_RET;
3436
3437         /* handle exception */
3438
3439         M_LADD_IMM(REG_ITMP2_XPC, -4, REG_ITMP2_XPC);  /* exception address       */
3440
3441         disp = dseg_addaddress(cd, asm_handle_nat_exception);
3442         M_ALD(REG_ITMP3, REG_PV, disp);
3443         M_MTCTR(REG_ITMP3);
3444         M_RTS;
3445
3446         /* generate patcher stub call code */
3447
3448         {
3449                 patchref *pref;
3450                 u4        mcode;
3451                 u1       *savedmcodeptr;
3452                 u1       *tmpmcodeptr;
3453
3454                 for (pref = cd->patchrefs; pref != NULL; pref = pref->next) {
3455                         /* Get machine code which is patched back in later. The
3456                            call is 1 instruction word long. */
3457
3458                         tmpmcodeptr = cd->mcodebase + pref->branchpos;
3459
3460                         mcode = *((u4 *) tmpmcodeptr);
3461
3462                         /* Patch in the call to call the following code (done at
3463                            compile time). */
3464
3465                         savedmcodeptr = cd->mcodeptr;   /* save current mcodeptr          */
3466                         cd->mcodeptr  = tmpmcodeptr;    /* set mcodeptr to patch position */
3467
3468                         disp = ((u4 *) savedmcodeptr) - (((u4 *) tmpmcodeptr) + 1);
3469                         M_BL(disp);
3470
3471                         cd->mcodeptr = savedmcodeptr;   /* restore the current mcodeptr   */
3472
3473                         /* create stack frame - keep stack 16-byte aligned */
3474
3475                         M_AADD_IMM(REG_SP, -8 * 8, REG_SP);
3476
3477                         /* move return address onto stack */
3478
3479                         M_MFLR(REG_ZERO);
3480                         M_AST(REG_ZERO, REG_SP, 5 * 8);
3481
3482                         /* move pointer to java_objectheader onto stack */
3483
3484 #if defined(ENABLE_THREADS)
3485                         /* order reversed because of data segment layout */
3486
3487                         (void) dseg_addaddress(cd, NULL);                         /* flcword    */
3488                         (void) dseg_addaddress(cd, lock_get_initial_lock_word()); /* monitorPtr */
3489                         disp = dseg_addaddress(cd, NULL);                         /* vftbl      */
3490
3491                         M_LDA(REG_ITMP3, REG_PV, disp);
3492                         M_AST(REG_ITMP3, REG_SP, 4 * 8);
3493 #else
3494                         /* do nothing */
3495 #endif
3496
3497                         /* move machine code onto stack */
3498
3499                         disp = dseg_adds4(cd, mcode);
3500                         M_ILD(REG_ITMP3, REG_PV, disp);
3501                         M_IST(REG_ITMP3, REG_SP, 3 * 8);
3502
3503                         /* move class/method/field reference onto stack */
3504
3505                         disp = dseg_addaddress(cd, pref->ref);
3506                         M_ALD(REG_ITMP3, REG_PV, disp);
3507                         M_AST(REG_ITMP3, REG_SP, 2 * 8);
3508
3509                         /* move data segment displacement onto stack */
3510
3511                         disp = dseg_adds4(cd, pref->disp);
3512                         M_ILD(REG_ITMP3, REG_PV, disp);
3513                         M_IST(REG_ITMP3, REG_SP, 1 * 8);
3514
3515                         /* move patcher function pointer onto stack */
3516
3517                         disp = dseg_addaddress(cd, pref->patcher);
3518                         M_ALD(REG_ITMP3, REG_PV, disp);
3519                         M_AST(REG_ITMP3, REG_SP, 0 * 8);
3520
3521                         disp = dseg_addaddress(cd, asm_patcher_wrapper);
3522                         M_ALD(REG_ITMP3, REG_PV, disp);
3523                         M_MTCTR(REG_ITMP3);
3524                         M_RTS;
3525                 }
3526         }
3527
3528         codegen_finish(jd);
3529
3530         return code->entrypoint;
3531 }
3532
3533
3534
3535
3536 /*
3537  * These are local overrides for various environment variables in Emacs.
3538  * Please do not remove this and leave it at the end of the file, where
3539  * Emacs will automagically detect them.
3540  * ---------------------------------------------------------------------
3541  * Local variables:
3542  * mode: c
3543  * indent-tabs-mode: t
3544  * c-basic-offset: 4
3545  * tab-width: 4
3546  * End:
3547  * vim:noexpandtab:sw=4:ts=4:
3548  */