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 5656 2006-10-03 20:57:15Z edwin $
  35
  36 */
  37
  38
  39 #include "config.h"
  40
  41 #include <assert.h>
  42 #include <stdio.h>
  43 #include <signal.h>
  44
  45 #include "vm/types.h"
  46
  47 #include "md-abi.h"
  48 #include "vm/jit/abi-asm.h"
  49
  50 #include "vm/jit/powerpc64/arch.h"
  51 #include "vm/jit/powerpc64/codegen.h"
  52
  53 #include "mm/memory.h"
  54 #include "native/native.h"
  55 #include "vm/builtin.h"
  56 #include "vm/exceptions.h"
  57 #include "vm/global.h"
  58 #include "vm/loader.h"
  59 #include "vm/options.h"
  60 #include "vm/stringlocal.h"
  61 #include "vm/vm.h"
  62 #include "vm/jit/asmpart.h"
  63 #include "vm/jit/codegen-common.h"
  64 #include "vm/jit/dseg.h"
  65 #include "vm/jit/emit-common.h"
  66 #include "vm/jit/jit.h"
  67 #include "vm/jit/parse.h"
  68 #include "vm/jit/patcher.h"
  69 #include "vm/jit/reg.h"
  70 #include "vm/jit/replace.h"
  71
  72 #if defined(ENABLE_LSRA)
  73 # include "vm/jit/allocator/lsra.h"
  74 #endif
  75
  76
  77 /* codegen *********************************************************************
  78
  79    Generates machine code.
  80
  81 *******************************************************************************/
  82
  83 bool codegen(jitdata *jd)
  84 {
  85         methodinfo         *m;
  86         codeinfo           *code;
  87         codegendata        *cd;
  88         registerdata       *rd;
  89         s4                  len, s1, s2, s3, d, disp;
  90         ptrint              a;
  91         s4                  stackframesize;
  92         varinfo            *var;
  93         basicblock         *bptr;
  94         instruction        *iptr;
  95         exceptiontable     *ex;
  96         u2                  currentline;
  97         methodinfo         *lm;             /* local methodinfo for ICMD_INVOKE*  */
  98         builtintable_entry *bte;
  99         methoddesc         *md;
 100         rplpoint           *replacementpoint;
 101         s4                  fieldtype;
 102         s4                  varindex;
 103
 104         /* get required compiler data */
 105
 106         m    = jd->m;
 107         code = jd->code;
 108         cd   = jd->cd;
 109         rd   = jd->rd;
 110
 111         /* prevent compiler warnings */
 112
 113         d = 0;
 114         lm = NULL;
 115         bte = NULL;
 116
 117         {
 118         s4 i, p, t, l;
 119         s4 savedregs_num;
 120
 121         savedregs_num = 0;
 122
 123         /* space to save used callee saved registers */
 124
 125         savedregs_num += (INT_SAV_CNT - rd->savintreguse);
 126         savedregs_num += (FLT_SAV_CNT - rd->savfltreguse);
 127
 128         stackframesize = rd->memuse + savedregs_num;
 129
 130 #if defined(ENABLE_THREADS)
 131         /* space to save argument of monitor_enter and Return Values to survive */
 132     /* monitor_exit. The stack position for the argument can not be shared  */
 133         /* with place to save the return register on PPC64, since both values     */
 134         /* reside in R3 */
 135         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
 136                 /* reserve 2 slots for long/double return values for monitorexit */
 137                 stackframesize += 2;
 138         }
 139
 140 #endif
 141
 142         /* create method header */
 143
 144         /* align stack to 16-bytes */
 145
 146 /*      if (!m->isleafmethod || opt_verbosecall) */
 147                 stackframesize = (stackframesize + 3) & ~3;
 148
 149 /*      else if (m->isleafmethod && (stackframesize == LA_WORD_SIZE)) */
 150 /*              stackframesize = 0; */
 151
 152         (void) dseg_addaddress(cd, code);                      /* CodeinfoPointer */
 153         (void) dseg_adds4(cd, stackframesize * 8);             /* FrameSize       */
 154
 155 #if defined(ENABLE_THREADS)
 156         /* IsSync contains the offset relative to the stack pointer for the
 157            argument of monitor_exit used in the exception handler. Since the
 158            offset could be zero and give a wrong meaning of the flag it is
 159            offset by one.
 160         */
 161
 162         if (checksync && (m->flags & ACC_SYNCHRONIZED))
 163                 (void) dseg_adds4(cd, (rd->memuse + 1) * 8);       /* IsSync          */
 164         else
 165 #endif
 166                 (void) dseg_adds4(cd, 0);                          /* IsSync          */
 167
 168         (void) dseg_adds4(cd, jd->isleafmethod);                /* IsLeaf          */
 169         (void) dseg_adds4(cd, INT_SAV_CNT - rd->savintreguse); /* IntSave         */
 170         (void) dseg_adds4(cd, FLT_SAV_CNT - rd->savfltreguse); /* FltSave         */
 171
 172         dseg_addlinenumbertablesize(cd);
 173
 174         (void) dseg_adds4(cd, cd->exceptiontablelength);       /* ExTableSize     */
 175
 176         /* create exception table */
 177
 178         for (ex = cd->exceptiontable; ex != NULL; ex = ex->down) {
 179                 dseg_addtarget(cd, ex->start);
 180                 dseg_addtarget(cd, ex->end);
 181                 dseg_addtarget(cd, ex->handler);
 182                 (void) dseg_addaddress(cd, ex->catchtype.any);
 183         }
 184
 185         /* create stack frame (if necessary) */
 186
 187         if (!jd->isleafmethod) {
 188                 M_MFLR(REG_ZERO);
 189                 M_AST(REG_ZERO, REG_SP, LA_LR_OFFSET);
 190         }
 191
 192         if (stackframesize)
 193                 M_STDU(REG_SP, REG_SP, -stackframesize * 8);
 194
 195         /* save return address and used callee saved registers */
 196
 197         p = stackframesize;
 198         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
 199                 p--; M_LST(rd->savintregs[i], REG_SP, p * 8);
 200         }
 201         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
 202                 p --; M_DST(rd->savfltregs[i], REG_SP, p * 8);
 203         }
 204
 205         /* take arguments out of register or stack frame */
 206
 207         md = m->parseddesc;
 208
 209         for (p = 0, l = 0; p < md->paramcount; p++) {
 210                 t = md->paramtypes[p].type;
 211                 var = &(rd->locals[l][t]);
 212                 l++;
 213                 if (IS_2_WORD_TYPE(t))    /* increment local counter for 2 word types */
 214                         l++;
 215                 if (var->type < 0)
 216                         continue;
 217                 s1 = md->params[p].regoff;
 218                 if (IS_INT_LNG_TYPE(t)) {                    /* integer args          */
 219                         if (IS_2_WORD_TYPE(t))
 220                                 s2 = PACK_REGS(rd->argintregs[GET_LOW_REG(s1)],
 221                                                            rd->argintregs[GET_HIGH_REG(s1)]);
 222                         else
 223                                 s2 = rd->argintregs[s1];
 224                         if (!md->params[p].inmemory) {           /* register arguments    */
 225                                 if (!(var->flags & INMEMORY)) {      /* reg arg -> register   */
 226                                         M_NOP;
 227                                         if (IS_2_WORD_TYPE(t))          /* FIXME, only M_INTMOVE here */
 228                                                 M_LNGMOVE(s2, var->regoff);
 229                                         else
 230                                                 M_INTMOVE(s2, var->regoff);
 231
 232                                 } else {                             /* reg arg -> spilled    */
 233                                         if (IS_2_WORD_TYPE(t))
 234                                                 M_LST(s2, REG_SP, var->regoff * 4);
 235                                         else
 236                                                 M_IST(s2, REG_SP, var->regoff * 4);
 237                                 }
 238
 239                         } else {                                 /* stack arguments       */
 240                                 if (!(var->flags & INMEMORY)) {      /* stack arg -> register */
 241                                         if (IS_2_WORD_TYPE(t))
 242                                                 M_LLD(var->regoff, REG_SP, (stackframesize + s1) * 4);
 243                                         else
 244                                                 M_ILD(var->regoff, REG_SP, (stackframesize + s1) * 4);
 245
 246                                 } else {                             /* stack arg -> spilled  */
 247 #if 1
 248                                         M_ILD(REG_ITMP1, REG_SP, (stackframesize + s1) * 4);
 249                                         M_IST(REG_ITMP1, REG_SP, var->regoff * 4);
 250                                         if (IS_2_WORD_TYPE(t)) {
 251                                                 M_ILD(REG_ITMP1, REG_SP, (stackframesize + s1) * 4 +4);
 252                                                 M_IST(REG_ITMP1, REG_SP, var->regoff * 4 + 4);
 253                                         }
 254 #else
 255                                         /* Reuse Memory Position on Caller Stack */
 256                                         var->regoff = stackframesize + s1;
 257 #endif
 258                                 }
 259                         }
 260
 261                 } else {                                     /* floating args         */
 262                         if (!md->params[p].inmemory) {           /* register arguments    */
 263                                 s2 = rd->argfltregs[s1];
 264                                 if (!(var->flags & INMEMORY)) {      /* reg arg -> register   */
 265                                         M_FLTMOVE(s2, var->regoff);
 266
 267                                 } else {                                         /* reg arg -> spilled    */
 268                                         if (IS_2_WORD_TYPE(t))
 269                                                 M_DST(s2, REG_SP, var->regoff * 4);
 270                                         else
 271                                                 M_FST(s2, REG_SP, var->regoff * 4);
 272                                 }
 273
 274                         } else {                                 /* stack arguments       */
 275                                 if (!(var->flags & INMEMORY)) {      /* stack-arg -> register */
 276                                         if (IS_2_WORD_TYPE(t))
 277                                                 M_DLD(var->regoff, REG_SP, (stackframesize + s1) * 4);
 278
 279                                         else
 280                                                 M_FLD(var->regoff, REG_SP, (stackframesize + s1) * 4);
 281
 282                                 } else {                             /* stack-arg -> spilled  */
 283 #if 1
 284                                         if (IS_2_WORD_TYPE(t)) {
 285                                                 M_DLD(REG_FTMP1, REG_SP, (stackframesize + s1) * 4);
 286                                                 M_DST(REG_FTMP1, REG_SP, var->regoff * 4);
 287                                                 var->regoff = stackframesize + s1;
 288
 289                                         } else {
 290                                                 M_FLD(REG_FTMP1, REG_SP, (stackframesize + s1) * 4);
 291                                                 M_FST(REG_FTMP1, REG_SP, var->regoff * 4);
 292                                         }
 293 #else
 294                                         /* Reuse Memory Position on Caller Stack */
 295                                         var->regoff = stackframesize + s1;
 296 #endif
 297                                 }
 298                         }
 299                 }
 300         } /* end for */
 301
 302         /* save monitorenter argument */
 303
 304 #if defined(ENABLE_THREADS)
 305
 306         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
 307
 308                 /* stackoffset for argument used for LOCK_monitor_exit */
 309                 s1 = rd->memuse;
 310 #if !defined (NDEBUG)
 311                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 312                         M_AADD_IMM(REG_SP, -((LA_SIZE_IN_POINTERS + PA_SIZE_IN_POINTERS + ARG_CNT) * 8), REG_SP);
 313
 314                         for (p = 0; p < INT_ARG_CNT; p++)
 315                                 M_LST(rd->argintregs[p], REG_SP, LA_SIZE + PA_SIZE + p * 8);
 316
 317                         for (p = 0; p < FLT_ARG_CNT; p++)
 318                                 M_DST(rd->argfltregs[p], REG_SP, LA_SIZE + PA_SIZE + (INT_ARG_CNT + p) * 8);
 319
 320                         /* used for LOCK_monitor_exit, adopt size because we created another stackframe */
 321                         s1 += (LA_SIZE_IN_POINTERS + PA_SIZE_IN_POINTERS + ARG_CNT);
 322                 }
 323 #endif
 324                 p = dseg_addaddress(cd, LOCK_monitor_enter);
 325                 M_ALD(REG_ITMP3, REG_PV, p);
 326                 M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
 327                 M_MTCTR(REG_ITMP3);
 328
 329                 /* get or test the lock object */
 330
 331                 if (m->flags & ACC_STATIC) {
 332                         p = dseg_addaddress(cd, &m->class->object.header);
 333                         M_ALD(rd->argintregs[0], REG_PV, p);
 334                 }
 335                 else {
 336                         M_TST(rd->argintregs[0]);
 337                         M_BEQ(0);
 338                         codegen_add_nullpointerexception_ref(cd);
 339                 }
 340
 341                 M_AST(rd->argintregs[0], REG_SP, s1 * 8);       /* rd->memuse * 8 */
 342                 M_JSR;
 343 #if !defined (NDEBUG)
 344                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 345                         for (p = 0; p < INT_ARG_CNT; p++)
 346                                 M_LLD(rd->argintregs[p], REG_SP, LA_SIZE + PA_SIZE + p * 8);
 347
 348                         for (p = 0; p < FLT_ARG_CNT; p++)
 349                                 M_DLD(rd->argfltregs[p], REG_SP, LA_SIZE + PA_SIZE + (INT_ARG_CNT + p) * 8);
 350
 351                         M_AADD_IMM(REG_SP, (LA_SIZE_IN_POINTERS + PA_SIZE_IN_POINTERS + ARG_CNT) * 8, REG_SP);
 352                 }
 353 #endif
 354         }
 355 #endif
 356
 357         /* call trace function */
 358 #if !defined (NDEBUG)
 359         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
 360                 emit_verbosecall_enter(jd);
 361
 362         }
 363 #endif
 364
 365         /* end of header generation */
 366
 367         replacementpoint = jd->code->rplpoints;
 368
 369         /* walk through all basic blocks */
 370         for (bptr = jd->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_EXH)) {
 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_EXH)) {
 423                                 d = codegen_reg_of_var(0, var, REG_ITMP1);
 424                                 M_INTMOVE(REG_ITMP1, d);
 425                                 emit_store(jd, NULL, var, d);
 426                         }
 427                         else {
 428                                 assert((var->flags & INOUT));
 429                         }
 430                 }
 431
 432 #if defined(ENABLE_LSRA)
 433                 }
 434 #endif
 435                 /* walk through all instructions */
 436
 437                 len = bptr->icount;
 438                 currentline = 0;
 439
 440                 for (iptr = bptr->iinstr; len > 0; len--, iptr++) {
 441                         if (iptr->line != currentline) {
 442                                 dseg_addlinenumber(cd, iptr->line);
 443                                 currentline = iptr->line;
 444                         }
 445
 446                         MCODECHECK(64);   /* an instruction usually needs < 64 words      */
 447
 448                         /* M_NOP; M_NOP; XXX */
 449                         switch (iptr->opc) {
 450                         case ICMD_NOP:    /* ...  ==> ...                                 */
 451                         case ICMD_INLINE_START:
 452                         case ICMD_INLINE_END:
 453                                 break;
 454
 455                 case ICMD_CHECKNULL:  /* ..., objectref  ==> ..., objectref           */
 456
 457                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 458                         M_TST(s1);
 459                         M_BEQ(0);
 460                         codegen_add_nullpointerexception_ref(cd);
 461                         break;
 462
 463                 /* constant operations ************************************************/
 464
 465                 case ICMD_ICONST:     /* ...  ==> ..., constant                       */
 466
 467                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 468                         ICONST(d, iptr->sx.val.i);
 469                         emit_store_dst(jd, iptr, d);
 470                         break;
 471
 472                 case ICMD_LCONST:     /* ...  ==> ..., constant                       */
 473
 474                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 475                         LCONST(d, iptr->sx.val.l);
 476                         emit_store_dst(jd, iptr, d);
 477                         break;
 478
 479                 case ICMD_FCONST:     /* ...  ==> ..., constant                       */
 480
 481                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 482                         a = dseg_addfloat(cd, iptr->sx.val.f);
 483                         M_FLD(d, REG_PV, a);
 484                         emit_store_dst(jd, iptr, d);
 485                         break;
 486
 487                 case ICMD_DCONST:     /* ...  ==> ..., constant                       */
 488
 489                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 490                         a = dseg_adddouble(cd, iptr->sx.val.d);
 491                         M_DLD(d, REG_PV, a);
 492                         emit_store_dst(jd, iptr, d);
 493                         break;
 494
 495                 case ICMD_ACONST:     /* ...  ==> ..., constant                       */
 496                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 497                         disp = dseg_addaddress(cd, iptr->sx.val.anyptr);
 498
 499                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
 500                                 codegen_addpatchref(cd, PATCHER_aconst,
 501                                                                         iptr->sx.val.c.ref,
 502                                                                     disp);
 503
 504                                 if (opt_showdisassemble)
 505                                         M_NOP;
 506                         }
 507
 508                         M_ALD(d, REG_PV, disp);
 509                         emit_store_dst(jd, iptr, d);
 510                         break;
 511
 512
 513                 /* load/store/copy/move operations ************************************/
 514
 515                 case ICMD_ILOAD:      /* ...  ==> ..., content of local variable      */
 516                 case ICMD_ALOAD:      /* s1.localindex = local variable               */
 517                 case ICMD_LLOAD:
 518                 case ICMD_FLOAD:      /* ...  ==> ..., content of local variable      */
 519                 case ICMD_DLOAD:      /* ...  ==> ..., content of local variable      */
 520                 case ICMD_ISTORE:     /* ..., value  ==> ...                          */
 521                 case ICMD_ASTORE:     /* dst.localindex = local variable              */
 522                 case ICMD_LSTORE:
 523                 case ICMD_FSTORE:     /* ..., value  ==> ...                          */
 524                 case ICMD_DSTORE:     /* ..., value  ==> ...                          */
 525                 case ICMD_COPY:
 526                 case ICMD_MOVE:
 527
 528                         emit_copy(jd, iptr, VAROP(iptr->s1), VAROP(iptr->dst));
 529                         break;
 530
 531
 532                 /* pop operations *****************************************************/
 533
 534                 /* attention: double and longs are only one entry in CACAO ICMDs      */
 535
 536                 case ICMD_POP:        /* ..., value  ==> ...                          */
 537                 case ICMD_POP2:       /* ..., value, value  ==> ...                   */
 538
 539                         break;
 540
 541
 542                 /* integer operations *************************************************/
 543
 544                 case ICMD_INEG:       /* ..., value  ==> ..., - value                 */
 545
 546                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 547                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 548                         M_NEG(s1, d);
 549                         emit_store_dst(jd, iptr, d);
 550                         break;
 551
 552                 case ICMD_LNEG:       /* ..., value  ==> ..., - value                 */
 553
 554                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 555                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 556                         M_NEG(s1, d); /* XXX */
 557                         emit_store_dst(jd, iptr, d);
 558                         break;
 559
 560                 case ICMD_I2L:        /* ..., value  ==> ..., value                   */
 561
 562                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 563                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 564                         M_INTMOVE(s1, d);
 565                         emit_store_dst(jd, iptr, d);
 566                         break;
 567
 568                 case ICMD_L2I:        /* ..., value  ==> ..., value                   */
 569
 570                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 571                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 572                         M_ISEXT(s1, d);
 573                         emit_store_dst(jd, iptr, d);
 574                         break;
 575
 576                 case ICMD_INT2BYTE:   /* ..., value  ==> ..., value                   */
 577
 578                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 579                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 580                         M_BSEXT(s1, d);
 581                         emit_store_dst(jd, iptr, d);
 582                         break;
 583
 584                 case ICMD_INT2CHAR:   /* ..., value  ==> ..., value                   */
 585
 586                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 587                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 588                         M_CZEXT(s1, d);
 589                         emit_store_dst(jd, iptr, d);
 590                         break;
 591
 592                 case ICMD_INT2SHORT:  /* ..., value  ==> ..., value                   */
 593
 594                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 595                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 596                         M_SSEXT(s1, d);
 597                         emit_store_dst(jd, iptr, d);
 598                         break;
 599
 600
 601                 case ICMD_IADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 602
 603                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 604                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 605                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 606                         M_IADD(s1, s2, d);
 607                         M_EXTSW(d,d);
 608                         emit_store_dst(jd, iptr, d);
 609                         break;
 610
 611                 case ICMD_IINC:
 612                 case ICMD_IADDCONST:
 613
 614                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 615                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 616                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767)) {
 617                                 M_IADD_IMM(s1, iptr->sx.val.i, d);
 618                         } else {
 619                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 620                                 M_IADD(s1, REG_ITMP2, d);
 621                         }
 622                         emit_store_dst(jd, iptr, d);
 623                         break;
 624
 625                 case ICMD_LADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 626
 627                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 628                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 629                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 630                         M_LADD(s1, s2, d);
 631                         emit_store_dst(jd, iptr, d);
 632                         break;
 633
 634                 case ICMD_LADDCONST:  /* ..., value  ==> ..., value + constant        */
 635                                       /* sx.val.l = constant                          */
 636
 637                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 638                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 639                         /* XXX check me */
 640                         if ((iptr->sx.val.l >= -32768) && (iptr->sx.val.l <= 32767)) {
 641                                 M_LADD_IMM(s1, iptr->sx.val.l, d);
 642                         } else {
 643                                 LCONST(REG_ITMP2, iptr->sx.val.l);
 644                                 M_LADD(s1, REG_ITMP2, d);
 645                         }
 646                         emit_store_dst(jd, iptr, d);
 647                         break;
 648
 649                 case ICMD_ISUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 650
 651                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 652                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 653                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 654                         M_SUB(s1, s2, d);
 655                         emit_store_dst(jd, iptr, d);
 656                         break;
 657
 658                 case ICMD_ISUBCONST:  /* ..., value  ==> ..., value + constant        */
 659                                       /* sx.val.i = constant                          */
 660
 661                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 662                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 663                         if ((iptr->sx.val.i >= -32767) && (iptr->sx.val.i <= 32768)) {
 664                                 M_IADD_IMM(s1, -iptr->sx.val.i, d);
 665                         } else {
 666                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 667                                 M_SUB(s1, REG_ITMP2, d);
 668                         }
 669                         emit_store_dst(jd, iptr, d);
 670                         break;
 671
 672                 case ICMD_LSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 673
 674                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 675                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 676                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 677                         M_SUB(s1, s2, d);
 678                         emit_store_dst(jd, iptr, d);
 679                         break;
 680
 681                 case ICMD_LSUBCONST:  /* ..., value  ==> ..., value - constant        */
 682                                       /* sx.val.l = constant                          */
 683
 684                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 685                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 686                         /* XXX check me */
 687                         if ((iptr->sx.val.l >= -32768) && (iptr->sx.val.l <= 32767)) {
 688                                 M_LADD_IMM(s1, -iptr->sx.val.l, d);
 689                         } else {
 690                                 LCONST(REG_ITMP2, iptr->sx.val.l);
 691                                 M_SUB(s1, REG_ITMP2, d);
 692                         }
 693                         emit_store_dst(jd, iptr, d);
 694                         break;
 695
 696                 case ICMD_IDIV:
 697                 case ICMD_LDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 698
 699                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 700                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 701                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 702                         M_TST(s2);
 703                         M_BEQ(0);
 704                         codegen_add_arithmeticexception_ref(cd);
 705
 706                         M_DIV(s1, s2, d);
 707
 708                         emit_store_dst(jd, iptr, d);
 709                         break;
 710
 711                 case ICMD_IREM:
 712                 case ICMD_LREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 713                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 714                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 715                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 716                         M_TST(s2);
 717                         M_BEQ(0);
 718                         codegen_add_arithmeticexception_ref(cd);
 719
 720                         /* FIXME s1 == -2^63 && s2 == -1 does not work that way */
 721                         M_DIV(s1, s2, d);
 722                         M_MUL( d, s2, d);
 723                         M_SUB(s1,  d, d);
 724                         emit_store_dst(jd, iptr, d);
 725                         break;
 726
 727                 case ICMD_IMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 728
 729                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 730                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 731                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 732                         M_MUL(s1, s2, d);
 733                         emit_store_dst(jd, iptr, d);
 734                         break;
 735
 736                 case ICMD_IMULCONST:  /* ..., value  ==> ..., value * constant        */
 737                                       /* sx.val.i = constant                          */
 738
 739                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 740                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 741                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767))
 742                                 M_MUL_IMM(s1, iptr->sx.val.i, d);
 743                         else {
 744                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 745                                 M_MUL(s1, REG_ITMP3, d);
 746                         }
 747                         emit_store_dst(jd, iptr, d);
 748                         break;
 749
 750                 case ICMD_IDIVPOW2:   /* ..., value  ==> ..., value << constant       */
 751
 752                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 753                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 754                         M_SRA_IMM(s1, iptr->sx.val.i, d);
 755                         M_ADDZE(d, d);
 756                         emit_store_dst(jd, iptr, d);
 757                         break;
 758
 759                 case ICMD_ISHL:       /* ..., val1, val2  ==> ..., val1 << val2       */
 760
 761                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 762                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 763                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 764                         M_AND_IMM(s2, 0x1f, REG_ITMP3);
 765                         M_SLL(s1, REG_ITMP3, d);
 766                         emit_store_dst(jd, iptr, d);
 767                         break;
 768
 769                 case ICMD_ISHLCONST:  /* ..., value  ==> ..., value << constant       */
 770                                       /* sx.val.i = constant                             */
 771
 772                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 773                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 774                         M_SLL_IMM(s1, iptr->sx.val.i & 0x1f, d);
 775                         emit_store_dst(jd, iptr, d);
 776                         break;
 777
 778                 case ICMD_ISHR:       /* ..., val1, val2  ==> ..., val1 >> val2       */
 779
 780                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 781                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 782                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 783                         M_AND_IMM(s2, 0x1f, REG_ITMP3);
 784                         M_SRA(s1, REG_ITMP3, d);
 785                         emit_store_dst(jd, iptr, d);
 786                         break;
 787
 788                 case ICMD_ISHRCONST:  /* ..., value  ==> ..., value >> constant       */
 789                                       /* sx.val.i = constant                             */
 790
 791                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 792                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 793                         M_SRA_IMM(s1, iptr->sx.val.i & 0x1f, d);
 794                         emit_store_dst(jd, iptr, d);
 795                         break;
 796
 797                 case ICMD_IUSHR:      /* ..., val1, val2  ==> ..., val1 >>> val2      */
 798
 799                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 800                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 801                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 802                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 803                         M_SRL(s1, REG_ITMP2, d);
 804                         emit_store_dst(jd, iptr, d);
 805                         break;
 806
 807                 case ICMD_IUSHRCONST: /* ..., value  ==> ..., value >>> constant      */
 808                                       /* sx.val.i = constant                             */
 809
 810                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 811                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 812                         if (iptr->sx.val.i & 0x1f) {
 813                                 M_SRL_IMM(s1, iptr->sx.val.i & 0x1f, d);
 814                         } else {
 815                                 M_INTMOVE(s1, d);
 816                         }
 817                         emit_store_dst(jd, iptr, d);
 818                         break;
 819
 820                 case ICMD_IAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 821                 case ICMD_LAND:
 822
 823                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 824                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 825                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 826                         M_AND(s1, s2, d);
 827                         emit_store_dst(jd, iptr, d);
 828                         break;
 829
 830                 case ICMD_IANDCONST:  /* ..., value  ==> ..., value & constant        */
 831                                       /* sx.val.i = constant                          */
 832
 833                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 834                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 835                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535)) {
 836                                 M_AND_IMM(s1, iptr->sx.val.i, d);
 837                                 }
 838                         /*
 839                         else if (iptr->sx.val.i == 0xffffff) {
 840                                 M_RLWINM(s1, 0, 8, 31, d);
 841                                 }
 842                         */
 843                         else {
 844                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 845                                 M_AND(s1, REG_ITMP3, d);
 846                         }
 847                         emit_store_dst(jd, iptr, d);
 848                         break;
 849
 850                 case ICMD_LANDCONST:  /* ..., value  ==> ..., value & constant        */
 851                                       /* sx.val.l = constant                          */
 852
 853                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 854                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 855                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
 856                                 M_AND_IMM(s1, iptr->sx.val.l, d);
 857                         /*
 858                         else if (iptr->sx.val.l == 0xffffff) {
 859                                 M_RLWINM(s1, 0, 8, 31, d);
 860                                 }
 861                         */
 862                         else {
 863                                 LCONST(REG_ITMP3, iptr->sx.val.l);
 864                                 M_AND(s1, REG_ITMP3, d);
 865                         }
 866                         emit_store_dst(jd, iptr, d);
 867                         break;
 868
 869                 case ICMD_IREMPOW2:   /* ..., value  ==> ..., value % constant        */
 870                                       /* sx.val.i = constant                             */
 871
 872                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 873                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 874                         M_MOV(s1, REG_ITMP2);
 875                         M_CMPI(s1, 0);
 876                         M_BGE(1 + 2*(iptr->sx.val.i >= 32768));
 877                         if (iptr->sx.val.i >= 32768) {
 878                                 M_ADDIS(REG_ZERO, iptr->sx.val.i >> 16, REG_ITMP2);
 879                                 M_OR_IMM(REG_ITMP2, iptr->sx.val.i, REG_ITMP2);
 880                                 M_IADD(s1, REG_ITMP2, REG_ITMP2);
 881                         } else {
 882                                 M_IADD_IMM(s1, iptr->sx.val.i, REG_ITMP2);
 883                         }
 884                         {
 885                                 int b=0, m = iptr->sx.val.i;
 886                                 while (m >>= 1)
 887                                         ++b;
 888                                 M_RLWINM(REG_ITMP2, 0, 0, 30-b, REG_ITMP2);
 889                         }
 890                         M_SUB(s1, REG_ITMP2, d);
 891                         emit_store_dst(jd, iptr, d);
 892                         break;
 893
 894                 case ICMD_IOR:        /* ..., val1, val2  ==> ..., val1 | val2        */
 895                 case ICMD_LOR:
 896
 897                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 898                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 899                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 900                         M_OR(s1, s2, d);
 901                         emit_store_dst(jd, iptr, d);
 902                         break;
 903
 904                 case ICMD_IORCONST:   /* ..., value  ==> ..., value | constant        */
 905                                       /* sx.val.i = constant                          */
 906
 907                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 908                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 909                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
 910                                 M_OR_IMM(s1, iptr->sx.val.i, d);
 911                         else {
 912                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 913                                 M_OR(s1, REG_ITMP3, d);
 914                         }
 915                         emit_store_dst(jd, iptr, d);
 916                         break;
 917
 918                 case ICMD_LORCONST:   /* ..., value  ==> ..., value | constant        */
 919                                       /* sx.val.l = constant                          */
 920
 921                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 922                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 923                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
 924                                 M_OR_IMM(s1, iptr->sx.val.l, d);
 925                         else {
 926                                 LCONST(REG_ITMP3, iptr->sx.val.l);
 927                                 M_OR(s1, REG_ITMP3, d);
 928                         }
 929                         emit_store_dst(jd, iptr, d);
 930                         break;
 931
 932
 933                 case ICMD_IXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
 934                 case ICMD_LXOR:
 935
 936                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 937                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 938                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 939                         M_XOR(s1, s2, d);
 940                         emit_store_dst(jd, iptr, d);
 941                         break;
 942
 943                 case ICMD_IXORCONST:  /* ..., value  ==> ..., value ^ constant        */
 944                                       /* sx.val.i = constant                          */
 945
 946                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 947                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 948                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
 949                                 M_XOR_IMM(s1, iptr->sx.val.i, d);
 950                         else {
 951                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 952                                 M_XOR(s1, REG_ITMP3, d);
 953                         }
 954                         emit_store_dst(jd, iptr, d);
 955                         break;
 956
 957                 case ICMD_LXORCONST:  /* ..., value  ==> ..., value ^ constant        */
 958                                       /* sx.val.l = constant                          */
 959
 960                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 961                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 962                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
 963                                 M_XOR_IMM(s1, iptr->sx.val.l, d);
 964                         else {
 965                                 LCONST(REG_ITMP3, iptr->sx.val.l);
 966                                 M_XOR(s1, REG_ITMP3, d);
 967                         }
 968                         emit_store_dst(jd, iptr, d);
 969                         break;
 970
 971                 case ICMD_LCMP:       /* ..., val1, val2  ==> ..., val1 cmp val2      */
 972
 973                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 974                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 975                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 976                         /* XXX implement me!!! */
 977                         emit_store_dst(jd, iptr, d);
 978                         break;
 979                         break;
 980
 981
 982                 /* floating operations ************************************************/
 983
 984                 case ICMD_FNEG:       /* ..., value  ==> ..., - value                 */
 985
 986                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 987                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
 988                         M_FMOVN(s1, d);
 989                         emit_store_dst(jd, iptr, d);
 990                         break;
 991
 992                 case ICMD_DNEG:       /* ..., value  ==> ..., - value                 */
 993
 994                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 995                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
 996                         M_FMOVN(s1, d);
 997                         emit_store_dst(jd, iptr, d);
 998                         break;
 999
1000                 case ICMD_FADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
1001
1002                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1003                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1004                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1005                         M_FADD(s1, s2, d);
1006                         emit_store_dst(jd, iptr, d);
1007                         break;
1008
1009                 case ICMD_DADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
1010
1011                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1012                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1013                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1014                         M_DADD(s1, s2, d);
1015                         emit_store_dst(jd, iptr, d);
1016                         break;
1017
1018                 case ICMD_FSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
1019
1020                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1021                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1022                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1023                         M_FSUB(s1, s2, d);
1024                         emit_store_dst(jd, iptr, d);
1025                         break;
1026
1027                 case ICMD_DSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
1028
1029                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1030                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1031                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1032                         M_DSUB(s1, s2, d);
1033                         emit_store_dst(jd, iptr, d);
1034                         break;
1035
1036                 case ICMD_FMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1037
1038                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1039                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1040                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1041                         M_FMUL(s1, s2, d);
1042                         emit_store_dst(jd, iptr, d);
1043                         break;
1044
1045                 case ICMD_DMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1046
1047                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1048                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1049                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1050                         M_DMUL(s1, s2, d);
1051                         emit_store_dst(jd, iptr, d);
1052                         break;
1053
1054                 case ICMD_FDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1055
1056                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1057                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1058                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1059                         M_FDIV(s1, s2, d);
1060                         emit_store_dst(jd, iptr, d);
1061                         break;
1062
1063                 case ICMD_DDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1064
1065                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1066                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1067                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1068                         M_DDIV(s1, s2, d);
1069                         emit_store_dst(jd, iptr, d);
1070                         break;
1071
1072                 case ICMD_F2I:       /* ..., value  ==> ..., (int) value              */
1073                 case ICMD_D2I:
1074
1075                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1076                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1077                         M_CLR(d);
1078                         disp = dseg_addfloat(cd, 0.0);
1079                         M_FLD(REG_FTMP2, REG_PV, disp);
1080                         M_FCMPU(s1, REG_FTMP2);
1081                         M_BNAN(4);
1082                         disp = dseg_adds4(cd, 0);
1083                         M_CVTDL_C(s1, REG_FTMP1);
1084                         M_LDA(REG_ITMP1, REG_PV, disp);
1085                         M_STFIWX(REG_FTMP1, 0, REG_ITMP1);
1086                         M_ILD(d, REG_PV, disp);
1087                         emit_store_dst(jd, iptr, d);
1088                         break;
1089
1090                 case ICMD_F2D:       /* ..., value  ==> ..., (double) value           */
1091
1092                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1093                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1094                         M_FLTMOVE(s1, d);
1095                         emit_store_dst(jd, iptr, d);
1096                         break;
1097
1098                 case ICMD_D2F:       /* ..., value  ==> ..., (double) value           */
1099
1100                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1101                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1102                         M_CVTDF(s1, d);
1103                         emit_store_dst(jd, iptr, d);
1104                         break;
1105
1106                 case ICMD_FCMPL:      /* ..., val1, val2  ==> ..., val1 fcmpg val2    */
1107                 case ICMD_DCMPL:      /* == => 0, < => 1, > => -1                     */
1108
1109
1110                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1111                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1112                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1113                         M_FCMPU(s2, s1);
1114                         M_IADD_IMM(REG_ZERO, -1, d);
1115                         M_BNAN(4);
1116                         M_BGT(3);
1117                         M_IADD_IMM(REG_ZERO, 0, d);
1118                         M_BGE(1);
1119                         M_IADD_IMM(REG_ZERO, 1, d);
1120                         emit_store_dst(jd, iptr, d);
1121                         break;
1122
1123                 case ICMD_FCMPG:      /* ..., val1, val2  ==> ..., val1 fcmpl val2    */
1124                 case ICMD_DCMPG:      /* == => 0, < => 1, > => -1                     */
1125
1126                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1127                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1128                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1129                         M_FCMPU(s1, s2);
1130                         M_IADD_IMM(REG_ZERO, 1, d);
1131                         M_BNAN(4);
1132                         M_BGT(3);
1133                         M_IADD_IMM(REG_ZERO, 0, d);
1134                         M_BGE(1);
1135                         M_IADD_IMM(REG_ZERO, -1, d);
1136                         emit_store_dst(jd, iptr, d);
1137                         break;
1138
1139                 case ICMD_IF_FCMPEQ:    /* ..., value, value ==> ...                  */
1140                 case ICMD_IF_DCMPEQ:
1141
1142                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1143                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1144                         M_FCMPU(s1, s2);
1145                         M_BNAN(1);
1146                         M_BEQ(0);
1147                         codegen_addreference(cd, iptr->dst.block);
1148                         break;
1149
1150                 case ICMD_IF_FCMPNE:    /* ..., value, value ==> ...                  */
1151                 case ICMD_IF_DCMPNE:
1152
1153                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1154                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1155                         M_FCMPU(s1, s2);
1156                         M_BNAN(0);
1157                         codegen_addreference(cd, iptr->dst.block);
1158                         M_BNE(0);
1159                         codegen_addreference(cd, iptr->dst.block);
1160                         break;
1161
1162
1163                 case ICMD_IF_FCMPL_LT:  /* ..., value, value ==> ...                  */
1164                 case ICMD_IF_DCMPL_LT:
1165
1166                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1167                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1168                         M_FCMPU(s1, s2);
1169                         M_BNAN(0);
1170                         codegen_addreference(cd, iptr->dst.block);
1171                         M_BLT(0);
1172                         codegen_addreference(cd, iptr->dst.block);
1173                         break;
1174
1175                 case ICMD_IF_FCMPL_GT:  /* ..., value, value ==> ...                  */
1176                 case ICMD_IF_DCMPL_GT:
1177
1178                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1179                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1180                         M_FCMPU(s1, s2);
1181                         M_BNAN(1);
1182                         M_BGT(0);
1183                         codegen_addreference(cd, iptr->dst.block);
1184                         break;
1185
1186                 case ICMD_IF_FCMPL_LE:  /* ..., value, value ==> ...                  */
1187                 case ICMD_IF_DCMPL_LE:
1188
1189                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1190                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1191                         M_FCMPU(s1, s2);
1192                         M_BNAN(0);
1193                         codegen_addreference(cd, iptr->dst.block);
1194                         M_BLE(0);
1195                         codegen_addreference(cd, iptr->dst.block);
1196                         break;
1197
1198                 case ICMD_IF_FCMPL_GE:  /* ..., value, value ==> ...                  */
1199                 case ICMD_IF_DCMPL_GE:
1200
1201                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1202                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1203                         M_FCMPU(s1, s2);
1204                         M_BNAN(1);
1205                         M_BGE(0);
1206                         codegen_addreference(cd, iptr->dst.block);
1207                         break;
1208
1209                 case ICMD_IF_FCMPG_LT:  /* ..., value, value ==> ...                  */
1210                 case ICMD_IF_DCMPG_LT:
1211
1212                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1213                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1214                         M_FCMPU(s1, s2);
1215                         M_BNAN(1);
1216                         M_BLT(0);
1217                         codegen_addreference(cd, iptr->dst.block);
1218                         break;
1219
1220                 case ICMD_IF_FCMPG_GT:  /* ..., value, value ==> ...                  */
1221                 case ICMD_IF_DCMPG_GT:
1222
1223                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1224                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1225                         M_FCMPU(s1, s2);
1226                         M_BNAN(0);
1227                         codegen_addreference(cd, iptr->dst.block);
1228                         M_BGT(0);
1229                         codegen_addreference(cd, iptr->dst.block);
1230                         break;
1231
1232                 case ICMD_IF_FCMPG_LE:  /* ..., value, value ==> ...                  */
1233                 case ICMD_IF_DCMPG_LE:
1234
1235                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1236                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1237                         M_FCMPU(s1, s2);
1238                         M_BNAN(1);
1239                         M_BLE(0);
1240                         codegen_addreference(cd, iptr->dst.block);
1241                         break;
1242
1243                 case ICMD_IF_FCMPG_GE:  /* ..., value, value ==> ...                  */
1244                 case ICMD_IF_DCMPG_GE:
1245
1246                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1247                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1248                         M_FCMPU(s1, s2);
1249                         M_BNAN(0);
1250                         codegen_addreference(cd, iptr->dst.block);
1251                         M_BGE(0);
1252                         codegen_addreference(cd, iptr->dst.block);
1253                         break;
1254
1255
1256                 /* memory operations **************************************************/
1257
1258                 case ICMD_ARRAYLENGTH: /* ..., arrayref  ==> ..., length              */
1259
1260                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1261                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1262                         gen_nullptr_check(s1);
1263                         M_ILD(d, s1, OFFSET(java_arrayheader, size));
1264                         emit_store_dst(jd, iptr, d);
1265                         break;
1266
1267                 case ICMD_BALOAD:     /* ..., arrayref, index  ==> ..., value         */
1268
1269                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1270                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1271                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1272                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1273                                 gen_nullptr_check(s1);
1274                                 gen_bound_check;
1275                         }
1276                         M_IADD_IMM(s2, OFFSET(java_chararray, data[0]), REG_ITMP2);
1277                         M_LBZX(d, s1, REG_ITMP2);
1278                         M_BSEXT(d, d);
1279                         emit_store_dst(jd, iptr, d);
1280                         break;
1281
1282                 case ICMD_CALOAD:     /* ..., arrayref, index  ==> ..., value         */
1283
1284                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1285                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1286                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1287                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1288                                 gen_nullptr_check(s1);
1289                                 gen_bound_check;
1290                         }
1291                         M_SLL_IMM(s2, 1, REG_ITMP2);
1292                         M_IADD_IMM(REG_ITMP2, OFFSET(java_chararray, data[0]), REG_ITMP2);
1293                         M_LHAX(d, s1, REG_ITMP2);
1294                         emit_store_dst(jd, iptr, d);
1295                         break;
1296
1297                 case ICMD_SALOAD:     /* ..., arrayref, index  ==> ..., value         */
1298
1299                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1300                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1301                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1302                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1303                                 gen_nullptr_check(s1);
1304                                 gen_bound_check;
1305                         }
1306                         M_SLL_IMM(s2, 1, REG_ITMP2);
1307                         M_IADD_IMM(REG_ITMP2, OFFSET(java_shortarray, data[0]), REG_ITMP2);
1308                         M_LHAX(d, s1, REG_ITMP2);
1309                         emit_store_dst(jd, iptr, d);
1310                         break;
1311
1312                 case ICMD_IALOAD:     /* ..., arrayref, index  ==> ..., value         */
1313
1314                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1315                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1316                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1317                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1318                                 gen_nullptr_check(s1);
1319                                 gen_bound_check;
1320                         }
1321                         M_SLL_IMM(s2, 2, REG_ITMP2);
1322                         M_IADD_IMM(REG_ITMP2, OFFSET(java_intarray, data[0]), REG_ITMP2);
1323                         M_LWZX(d, s1, REG_ITMP2);
1324                         emit_store_dst(jd, iptr, d);
1325                         break;
1326
1327                 case ICMD_LALOAD:     /* ..., arrayref, index  ==> ..., value         */
1328
1329                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1330                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1331                         d = codegen_reg_of_dst(jd, iptr, PACK_REGS(REG_ITMP2, REG_ITMP1));
1332                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1333                                 gen_nullptr_check(s1);
1334                                 gen_bound_check;
1335                         }
1336                         M_SLL_IMM(s2, 3, REG_ITMP2);
1337                         M_IADD(s1, REG_ITMP2, REG_ITMP2);
1338                         M_LLD_INTERN(d, REG_ITMP2, OFFSET(java_longarray, data[0]));
1339                         emit_store_dst(jd, iptr, d);
1340                         break;
1341
1342                 case ICMD_FALOAD:     /* ..., arrayref, index  ==> ..., value         */
1343
1344                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1345                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1346                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1347                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1348                                 gen_nullptr_check(s1);
1349                                 gen_bound_check;
1350                         }
1351                         M_SLL_IMM(s2, 2, REG_ITMP2);
1352                         M_IADD_IMM(REG_ITMP2, OFFSET(java_floatarray, data[0]), REG_ITMP2);
1353                         M_LFSX(d, s1, REG_ITMP2);
1354                         emit_store_dst(jd, iptr, d);
1355                         break;
1356
1357                 case ICMD_DALOAD:     /* ..., arrayref, index  ==> ..., value         */
1358
1359                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1360                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1361                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1362                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1363                                 gen_nullptr_check(s1);
1364                                 gen_bound_check;
1365                         }
1366                         M_SLL_IMM(s2, 3, REG_ITMP2);
1367                         M_IADD_IMM(REG_ITMP2, OFFSET(java_doublearray, data[0]), REG_ITMP2);
1368                         M_LFDX(d, s1, REG_ITMP2);
1369                         emit_store_dst(jd, iptr, d);
1370                         break;
1371
1372                 case ICMD_AALOAD:     /* ..., arrayref, index  ==> ..., value         */
1373
1374                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1375                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1376                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1377                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1378                                 gen_nullptr_check(s1);
1379                                 gen_bound_check;
1380                         }
1381                         M_SLL_IMM(s2, 3, REG_ITMP2);
1382                         M_IADD_IMM(REG_ITMP2, OFFSET(java_objectarray, data[0]), REG_ITMP2);
1383                         M_ALDX(d, s1, REG_ITMP2);
1384                         emit_store_dst(jd, iptr, d);
1385                         break;
1386
1387
1388                 case ICMD_BASTORE:    /* ..., arrayref, index, value  ==> ...         */
1389
1390                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1391                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1392                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1393                                 gen_nullptr_check(s1);
1394                                 gen_bound_check;
1395                         }
1396                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1397                         M_IADD_IMM(s2, OFFSET(java_bytearray, data[0]), REG_ITMP2);
1398                         M_STBX(s3, s1, REG_ITMP2);
1399                         break;
1400
1401                 case ICMD_CASTORE:    /* ..., arrayref, index, value  ==> ...         */
1402
1403                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1404                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1405                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1406                                 gen_nullptr_check(s1);
1407                                 gen_bound_check;
1408                         }
1409                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1410                         M_SLL_IMM(s2, 1, REG_ITMP2);
1411                         M_IADD_IMM(REG_ITMP2, OFFSET(java_chararray, data[0]), REG_ITMP2);
1412                         M_STHX(s3, s1, REG_ITMP2);
1413                         break;
1414
1415                 case ICMD_SASTORE:    /* ..., arrayref, index, value  ==> ...         */
1416
1417                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1418                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1419                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1420                                 gen_nullptr_check(s1);
1421                                 gen_bound_check;
1422                         }
1423                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1424                         M_SLL_IMM(s2, 1, REG_ITMP2);
1425                         M_IADD_IMM(REG_ITMP2, OFFSET(java_shortarray, data[0]), REG_ITMP2);
1426                         M_STHX(s3, s1, REG_ITMP2);
1427                         break;
1428
1429                 case ICMD_IASTORE:    /* ..., arrayref, index, value  ==> ...         */
1430
1431                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1432                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1433                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1434                                 gen_nullptr_check(s1);
1435                                 gen_bound_check;
1436                         }
1437                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1438                         M_SLL_IMM(s2, 2, REG_ITMP2);
1439                         M_IADD_IMM(REG_ITMP2, OFFSET(java_intarray, data[0]), REG_ITMP2);
1440                         M_STWX(s3, s1, REG_ITMP2);
1441                         break;
1442
1443                 case ICMD_LASTORE:    /* ..., arrayref, index, value  ==> ...         */
1444
1445                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1446                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1447                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1448                                 gen_nullptr_check(s1);
1449                                 gen_bound_check;
1450                         }
1451                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1452                         M_SLL_IMM(s2, 3, REG_ITMP2);
1453                         M_IADD_IMM(REG_ITMP2, OFFSET(java_longarray, data[0]), REG_ITMP2);
1454                         M_LST(s3, s1, REG_ITMP2);
1455                         break;
1456
1457                 case ICMD_FASTORE:    /* ..., arrayref, index, value  ==> ...         */
1458
1459                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1460                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1461                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1462                                 gen_nullptr_check(s1);
1463                                 gen_bound_check;
1464                         }
1465                         s3 = emit_load_s3(jd, iptr, REG_FTMP3);
1466                         M_SLL_IMM(s2, 2, REG_ITMP2);
1467                         M_IADD_IMM(REG_ITMP2, OFFSET(java_floatarray, data[0]), REG_ITMP2);
1468                         M_STFSX(s3, s1, REG_ITMP2);
1469                         break;
1470
1471                 case ICMD_DASTORE:    /* ..., arrayref, index, value  ==> ...         */
1472
1473                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1474                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1475                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1476                                 gen_nullptr_check(s1);
1477                                 gen_bound_check;
1478                         }
1479                         s3 = emit_load_s3(jd, iptr, REG_FTMP3);
1480                         M_SLL_IMM(s2, 3, REG_ITMP2);
1481                         M_IADD_IMM(REG_ITMP2, OFFSET(java_doublearray, data[0]), REG_ITMP2);
1482                         M_STFDX(s3, s1, REG_ITMP2);
1483                         break;
1484
1485                 case ICMD_AASTORE:    /* ..., arrayref, index, value  ==> ...         */
1486
1487                         s1 = emit_load_s1(jd, iptr, rd->argintregs[0]);
1488                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1489                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1490                                 gen_nullptr_check(s1);
1491                                 gen_bound_check;
1492                         }
1493                         s3 = emit_load_s3(jd, iptr, rd->argintregs[1]);
1494
1495                         disp = dseg_addaddress(cd, BUILTIN_canstore);
1496                         M_ALD(REG_ITMP3, REG_PV, disp);
1497                         M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
1498                         M_MTCTR(REG_ITMP3);
1499
1500                         M_INTMOVE(s1, rd->argintregs[0]);
1501                         M_INTMOVE(s3, rd->argintregs[1]);
1502
1503                         M_JSR;
1504                         M_TST(REG_RESULT);
1505                         M_BEQ(0);
1506                         codegen_add_arraystoreexception_ref(cd);
1507
1508                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1509                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1510                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1511                         M_SLL_IMM(s2, 3, REG_ITMP2);
1512                         M_IADD_IMM(REG_ITMP2, OFFSET(java_objectarray, data[0]), REG_ITMP2);
1513                         M_ASTX(s3, s1, REG_ITMP2);
1514                         break;
1515
1516
1517                 case ICMD_GETSTATIC:  /* ...  ==> ..., value                          */
1518
1519                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1520                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1521
1522                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1523                                 disp = dseg_addaddress(cd, NULL);
1524
1525                                 codegen_addpatchref(cd, PATCHER_get_putstatic,
1526                                                                         iptr->sx.s23.s3.uf, disp);
1527
1528                                 if (opt_showdisassemble)
1529                                         M_NOP;
1530
1531                         } else {
1532                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1533
1534                                 fieldtype = fi->type;
1535                                 disp = dseg_addaddress(cd, &(fi->value));
1536
1537                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1538                                         codegen_addpatchref(cd, PATCHER_clinit, fi->class, disp);
1539
1540                                         if (opt_showdisassemble)
1541                                                 M_NOP;
1542                                 }
1543                         }
1544
1545                         M_ALD(REG_ITMP1, REG_PV, disp);
1546                         switch (fieldtype) {
1547                         case TYPE_INT:
1548                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1549                                 M_ILD_INTERN(d, REG_ITMP1, 0);
1550                                 break;
1551                         case TYPE_LNG:
1552                                 d = codegen_reg_of_dst(jd, iptr, PACK_REGS(REG_ITMP2, REG_ITMP1));
1553                                 M_ILD_INTERN(GET_LOW_REG(d), REG_ITMP1, 4);/* keep this order */
1554                                 M_ILD_INTERN(GET_HIGH_REG(d), REG_ITMP1, 0);/*keep this order */
1555                                 break;
1556                         case TYPE_ADR:
1557                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1558                                 M_ALD_INTERN(d, REG_ITMP1, 0);
1559                                 break;
1560                         case TYPE_FLT:
1561                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1562                                 M_FLD_INTERN(d, REG_ITMP1, 0);
1563                                 break;
1564                         case TYPE_DBL:
1565                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1566                                 M_DLD_INTERN(d, REG_ITMP1, 0);
1567                                 break;
1568                         }
1569                         emit_store_dst(jd, iptr, d);
1570                         break;
1571
1572                 case ICMD_PUTSTATIC:  /* ..., value  ==> ...                          */
1573
1574
1575                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1576                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1577
1578                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1579                                 disp = dseg_addaddress(cd, NULL);
1580
1581                                 codegen_addpatchref(cd, PATCHER_get_putstatic,
1582                                                                         iptr->sx.s23.s3.uf, disp);
1583
1584                                 if (opt_showdisassemble)
1585                                         M_NOP;
1586
1587                         } else {
1588                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1589
1590                                 fieldtype = fi->type;
1591                                 disp = dseg_addaddress(cd, &(fi->value));
1592
1593                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1594                                         codegen_addpatchref(cd, PATCHER_clinit, fi->class, disp);
1595
1596                                         if (opt_showdisassemble)
1597                                                 M_NOP;
1598                                 }
1599                         }
1600
1601                         M_ALD(REG_ITMP1, REG_PV, disp);
1602                         switch (fieldtype) {
1603                         case TYPE_INT:
1604                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1605                                 M_IST_INTERN(s1, REG_ITMP1, 0);
1606                                 break;
1607                         case TYPE_LNG:
1608                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1609                                 M_LST_INTERN(s1, REG_ITMP1, 0);
1610                                 break;
1611                         case TYPE_ADR:
1612                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1613                                 M_AST_INTERN(s1, REG_ITMP1, 0);
1614                                 break;
1615                         case TYPE_FLT:
1616                                 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1617                                 M_FST_INTERN(s1, REG_ITMP1, 0);
1618                                 break;
1619                         case TYPE_DBL:
1620                                 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1621                                 M_DST_INTERN(s1, REG_ITMP1, 0);
1622                                 break;
1623                         }
1624                         break;
1625
1626
1627                 case ICMD_GETFIELD:   /* ...  ==> ..., value                          */
1628
1629                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1630                         gen_nullptr_check(s1);
1631
1632                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1633                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1634
1635                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1636
1637                                 codegen_addpatchref(cd, PATCHER_get_putfield,
1638                                                                         iptr->sx.s23.s3.uf, 0);
1639
1640                                 if (opt_showdisassemble)
1641                                         M_NOP;
1642
1643                                 disp = 0;
1644
1645                         } else {
1646                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1647
1648                                 fieldtype = fi->type;
1649                                 disp = fi->offset;
1650                         }
1651
1652                         switch (fieldtype) {
1653                         case TYPE_INT:
1654                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1655                                 M_ILD(d, s1, disp);
1656                                 break;
1657                         case TYPE_LNG:
1658                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1659                                 M_LLD(d, s1, disp);
1660                                 break;
1661                         case TYPE_ADR:
1662                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1663                                 M_ALD(d, s1, disp);
1664                                 break;
1665                         case TYPE_FLT:
1666                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1667                                 M_FLD(d, s1, disp);
1668                                 break;
1669                         case TYPE_DBL:
1670                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1671                                 M_DLD(d, s1, disp);
1672                                 break;
1673                         }
1674                         emit_store_dst(jd, iptr, d);
1675                         break;
1676
1677                 case ICMD_PUTFIELD:   /* ..., value  ==> ...                          */
1678
1679                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1680                         gen_nullptr_check(s1);
1681
1682                         if (!IS_FLT_DBL_TYPE(fieldtype)) {
1683                                 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1684                         } else {
1685                                 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1686                         }
1687
1688                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1689                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1690
1691                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1692
1693                                 codegen_addpatchref(cd, PATCHER_get_putfield,
1694                                                                         iptr->sx.s23.s3.uf, 0);
1695
1696                                 if (opt_showdisassemble)
1697                                         M_NOP;
1698
1699                                 disp = 0;
1700
1701                         } else {
1702                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1703
1704                                 fieldtype = fi->type;
1705                                 disp = fi->offset;
1706                         }
1707
1708                         switch (fieldtype) {
1709                         case TYPE_INT:
1710                                 M_IST(s2, s1, disp);
1711                                 break;
1712                         case TYPE_LNG:
1713                                 M_LST(s2, s1, disp);
1714                                 break;
1715                         case TYPE_ADR:
1716                                 M_AST(s2, s1, disp);
1717                                 break;
1718                         case TYPE_FLT:
1719                                 M_FST(s2, s1, disp);
1720                                 break;
1721                         case TYPE_DBL:
1722                                 M_DST(s2, s1, disp);
1723                                 break;
1724                         }
1725                         break;
1726
1727
1728                 /* branch operations **************************************************/
1729
1730                 case ICMD_ATHROW:       /* ..., objectref ==> ... (, objectref)       */
1731
1732                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1733                         M_LNGMOVE(s1, REG_ITMP1_XPTR);
1734
1735 #ifdef ENABLE_VERIFIER
1736                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1737                                 codegen_addpatchref(cd, PATCHER_athrow_areturn,
1738                                                                         iptr->sx.s23.s2.uc, 0);
1739
1740                                 if (opt_showdisassemble)
1741                                         M_NOP;
1742                         }
1743 #endif /* ENABLE_VERIFIER */
1744
1745                         disp = dseg_addaddress(cd, asm_handle_exception);
1746                         M_ALD(REG_ITMP2, REG_PV, disp);
1747                         M_MTCTR(REG_ITMP2);
1748
1749                         if (jd->isleafmethod) M_MFLR(REG_ITMP3);         /* save LR        */
1750                         M_BL(0);                                        /* get current PC */
1751                         M_MFLR(REG_ITMP2_XPC);
1752                         if (jd->isleafmethod) M_MTLR(REG_ITMP3);         /* restore LR     */
1753                         M_RTS;                                          /* jump to CTR    */
1754
1755                         ALIGNCODENOP;
1756                         break;
1757
1758                 case ICMD_GOTO:         /* ... ==> ...                                */
1759                 case ICMD_RET:          /* ... ==> ...                                */
1760
1761                         M_BR(0);
1762                         codegen_addreference(cd, iptr->dst.block);
1763                         ALIGNCODENOP;
1764                         break;
1765
1766                 case ICMD_JSR:          /* ... ==> ...                                */
1767
1768                         M_BR(0);
1769                         codegen_addreference(cd, iptr->sx.s23.s3.jsrtarget.block);
1770                         ALIGNCODENOP;
1771                         break;
1772
1773                 case ICMD_IFNULL:       /* ..., value ==> ...                         */
1774
1775                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1776                         M_TST(s1);
1777                         M_BEQ(0);
1778                         codegen_addreference(cd, iptr->dst.block);
1779                         break;
1780
1781                 case ICMD_IFNONNULL:    /* ..., value ==> ...                         */
1782
1783                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1784                         M_TST(s1);
1785                         M_BNE(0);
1786                         codegen_addreference(cd, iptr->dst.block);
1787                         break;
1788
1789                 case ICMD_IFLT:
1790                 case ICMD_IFLE:
1791                 case ICMD_IFNE:
1792                 case ICMD_IFGT:
1793                 case ICMD_IFGE:
1794                 case ICMD_IFEQ:         /* ..., value ==> ...                         */
1795
1796                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1797                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767))
1798                                 M_CMPI(s1, iptr->sx.val.i);
1799                         else {
1800                                 ICONST(REG_ITMP2, iptr->sx.val.i);
1801                                 M_CMP(s1, REG_ITMP2);
1802                         }
1803                         switch (iptr->opc) {
1804                         case ICMD_IFLT:
1805                                 M_BLT(0);
1806                                 break;
1807                         case ICMD_IFLE:
1808                                 M_BLE(0);
1809                                 break;
1810                         case ICMD_IFNE:
1811                                 M_BNE(0);
1812                                 break;
1813                         case ICMD_IFGT:
1814                                 M_BGT(0);
1815                                 break;
1816                         case ICMD_IFGE:
1817                                 M_BGE(0);
1818                                 break;
1819                         case ICMD_IFEQ:
1820                                 M_BEQ(0);
1821                                 break;
1822                         }
1823                         codegen_addreference(cd, iptr->dst.block);
1824                         break;
1825
1826                 #if 0
1827                 case ICMD_IF_LEQ:       /* ..., value ==> ...                         */
1828
1829                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1830                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1831                         if (iptr->sx.val.l == 0) {
1832                                 M_OR_TST(s1, s2, REG_ITMP3);
1833                         } else if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
1834                                 M_XOR_IMM(s2, 0, REG_ITMP2);
1835                                 M_XOR_IMM(s1, iptr->sx.val.l & 0xffff, REG_ITMP1);
1836                                 M_OR_TST(REG_ITMP1, REG_ITMP2, REG_ITMP3);
1837                         } else {
1838                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1839                                 M_XOR(s1, REG_ITMP3, REG_ITMP1);
1840                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1841                                 M_XOR(s2, REG_ITMP3, REG_ITMP2);
1842                                 M_OR_TST(REG_ITMP1, REG_ITMP2, REG_ITMP3);
1843                         }
1844                         M_BEQ(0);
1845                         codegen_addreference(cd, iptr->dst.block);
1846                         break;
1847
1848                 case ICMD_IF_LLT:       /* ..., value ==> ...                         */
1849                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1850                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1851                         if (iptr->sx.val.l == 0) {
1852                                 /* if high word is less than zero, the whole long is too */
1853                                 M_CMPI(s2, 0);
1854                         } else if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
1855                                 M_CMPI(s2, 0);
1856                                 M_BLT(0);
1857                                 codegen_addreference(cd, iptr->dst.block);
1858                                 M_BGT(2);
1859                                 M_CMPUI(s1, iptr->sx.val.l & 0xffff);
1860                         } else {
1861                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1862                                 M_CMP(s2, REG_ITMP3);
1863                                 M_BLT(0);
1864                                 codegen_addreference(cd, iptr->dst.block);
1865                                 M_BGT(3);
1866                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1867                                 M_CMPU(s1, REG_ITMP3);
1868                         }
1869                         M_BLT(0);
1870                         codegen_addreference(cd, iptr->dst.block);
1871                         break;
1872
1873                 case ICMD_IF_LLE:       /* ..., value ==> ...                         */
1874
1875                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1876                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1877 /*                      if (iptr->sx.val.l == 0) { */
1878 /*                              M_OR(s1, s2, REG_ITMP3); */
1879 /*                              M_CMPI(REG_ITMP3, 0); */
1880
1881 /*                      } else  */
1882                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
1883                                 M_CMPI(s2, 0);
1884                                 M_BLT(0);
1885                                 codegen_addreference(cd, iptr->dst.block);
1886                                 M_BGT(2);
1887                                 M_CMPUI(s1, iptr->sx.val.l & 0xffff);
1888                         } else {
1889                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1890                                 M_CMP(s2, REG_ITMP3);
1891                                 M_BLT(0);
1892                                 codegen_addreference(cd, iptr->dst.block);
1893                                 M_BGT(3);
1894                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1895                                 M_CMPU(s1, REG_ITMP3);
1896                         }
1897                         M_BLE(0);
1898                         codegen_addreference(cd, iptr->dst.block);
1899                         break;
1900
1901                 case ICMD_IF_LNE:       /* ..., value ==> ...                         */
1902
1903                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1904                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1905                         if (iptr->sx.val.l == 0) {
1906                                 M_OR_TST(s1, s2, REG_ITMP3);
1907                         } else if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
1908                                 M_XOR_IMM(s2, 0, REG_ITMP2);
1909                                 M_XOR_IMM(s1, iptr->sx.val.l & 0xffff, REG_ITMP1);
1910                                 M_OR_TST(REG_ITMP1, REG_ITMP2, REG_ITMP3);
1911                         } else {
1912                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1913                                 M_XOR(s1, REG_ITMP3, REG_ITMP1);
1914                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1915                                 M_XOR(s2, REG_ITMP3, REG_ITMP2);
1916                                 M_OR_TST(REG_ITMP1, REG_ITMP2, REG_ITMP3);
1917                         }
1918                         M_BNE(0);
1919                         codegen_addreference(cd, iptr->dst.block);
1920                         break;
1921
1922                 case ICMD_IF_LGT:       /* ..., value ==> ...                         */
1923
1924                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1925                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1926 /*                      if (iptr->sx.val.l == 0) { */
1927 /*                              M_OR(s1, s2, REG_ITMP3); */
1928 /*                              M_CMPI(REG_ITMP3, 0); */
1929
1930 /*                      } else  */
1931                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
1932                                 M_CMPI(s2, 0);
1933                                 M_BGT(0);
1934                                 codegen_addreference(cd, iptr->dst.block);
1935                                 M_BLT(2);
1936                                 M_CMPUI(s1, iptr->sx.val.l & 0xffff);
1937                         } else {
1938                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1939                                 M_CMP(s2, REG_ITMP3);
1940                                 M_BGT(0);
1941                                 codegen_addreference(cd, iptr->dst.block);
1942                                 M_BLT(3);
1943                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1944                                 M_CMPU(s1, REG_ITMP3);
1945                         }
1946                         M_BGT(0);
1947                         codegen_addreference(cd, iptr->dst.block);
1948                         break;
1949
1950                 case ICMD_IF_LGE:       /* ..., value ==> ...                         */
1951
1952                         /* TODO, remove me */
1953                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1954                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1955                         if (iptr->sx.val.l == 0) {
1956                                 /* if high word is greater equal zero, the whole long is too */
1957                                 M_CMPI(s2, 0);
1958                         } else if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
1959                                 M_CMPI(s2, 0);
1960                                 M_BGT(0);
1961                                 codegen_addreference(cd, iptr->dst.block);
1962                                 M_BLT(2);
1963                                 M_CMPUI(s1, iptr->sx.val.l & 0xffff);
1964                         } else {
1965                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
1966                                 M_CMP(s2, REG_ITMP3);
1967                                 M_BGT(0);
1968                                 codegen_addreference(cd, iptr->dst.block);
1969                                 M_BLT(3);
1970                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
1971                                 M_CMPU(s1, REG_ITMP3);
1972                         }
1973                         M_BGE(0);
1974                         codegen_addreference(cd, iptr->dst.block);
1975                         break;
1976                 #endif
1977
1978                 case ICMD_IF_ICMPEQ:    /* ..., value, value ==> ...                  */
1979                 case ICMD_IF_ACMPEQ:    /* op1 = target JavaVM pc                     */
1980                 case ICMD_IF_LCMPEQ:
1981
1982                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1983                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1984                         M_CMP(s1, s2);
1985                         M_BEQ(0);
1986                         codegen_addreference(cd, iptr->dst.block);
1987                         break;
1988
1989                 case ICMD_IF_ICMPNE:    /* ..., value, value ==> ...                  */
1990                 case ICMD_IF_ACMPNE:    /* op1 = target JavaVM pc                     */
1991                 case ICMD_IF_LCMPNE:
1992
1993                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1994                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1995                         M_CMP(s1, s2);
1996                         M_BNE(0);
1997                         codegen_addreference(cd, iptr->dst.block);
1998                         break;
1999
2000
2001                 case ICMD_IF_ICMPLT:    /* ..., value, value ==> ...                  */
2002                 case ICMD_IF_LCMPLT:
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_BLT(0);
2008                         codegen_addreference(cd, iptr->dst.block);
2009                         break;
2010
2011                 case ICMD_IF_ICMPGT:    /* ..., value, value ==> ...                  */
2012                 case ICMD_IF_LCMPGT:
2013
2014                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2015                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2016                         M_CMP(s1, s2);
2017                         M_BGT(0);
2018                         codegen_addreference(cd, iptr->dst.block);
2019                         break;
2020
2021                 case ICMD_IF_ICMPLE:    /* ..., value, value ==> ...                  */
2022                 case ICMD_IF_LCMPLE:
2023
2024                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2025                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2026                         M_CMP(s1, s2);
2027                         M_BLE(0);
2028                         codegen_addreference(cd, iptr->dst.block);
2029                         break;
2030
2031                 case ICMD_IF_ICMPGE:    /* ..., value, value ==> ...                  */
2032                 case ICMD_IF_LCMPGE:
2033
2034                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2035                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2036                         M_CMP(s1, s2);
2037                         M_BGE(0);
2038                         codegen_addreference(cd, iptr->dst.block);
2039                         break;
2040
2041
2042                 case ICMD_LRETURN:      /* ..., retvalue ==> ...                      */
2043                 case ICMD_IRETURN:      /* ..., retvalue ==> ...                      */
2044
2045                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2046                         M_LNGMOVE(s1, REG_RESULT);
2047                         goto nowperformreturn;
2048
2049                 case ICMD_ARETURN:      /* ..., retvalue ==> ...                      */
2050
2051                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2052                         M_LNGMOVE(s1, REG_RESULT);
2053
2054 #ifdef ENABLE_VERIFIER
2055                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2056                                 codegen_addpatchref(cd, PATCHER_athrow_areturn,
2057                                                                         iptr->sx.s23.s2.uc, 0);
2058
2059                                 if (opt_showdisassemble)
2060                                         M_NOP;
2061                         }
2062 #endif /* ENABLE_VERIFIER */
2063
2064                         goto nowperformreturn;
2065
2066                 case ICMD_FRETURN:      /* ..., retvalue ==> ...                      */
2067                 case ICMD_DRETURN:
2068
2069                         s1 = emit_load_s1(jd, iptr, REG_FRESULT);
2070                         M_FLTMOVE(s1, REG_FRESULT);
2071                         goto nowperformreturn;
2072
2073                 case ICMD_RETURN:      /* ...  ==> ...                                */
2074
2075 nowperformreturn:
2076                         {
2077                         s4 i, p;
2078
2079                         p = stackframesize;
2080
2081                         /* call trace function */
2082
2083 #if !defined(NDEBUG)
2084                         if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
2085                                 emit_verbosecall_exit(jd);
2086                         }
2087 #endif
2088
2089 #if defined(ENABLE_THREADS)
2090                         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
2091                                 disp = dseg_addaddress(cd, LOCK_monitor_exit);
2092                                 M_ALD(REG_ITMP3, REG_PV, disp);
2093                                 M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
2094                                 M_MTCTR(REG_ITMP3);
2095
2096                                 /* we need to save the proper return value */
2097
2098                                 switch (iptr->opc) {
2099                                 case ICMD_LRETURN:
2100                                 case ICMD_IRETURN:
2101                                 case ICMD_ARETURN:
2102                                         /* fall through */
2103                                         M_LST(REG_RESULT , REG_SP, rd->memuse * 8 + 8);
2104                                         break;
2105                                 case ICMD_FRETURN:
2106                                         M_FST(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
2107                                         break;
2108                                 case ICMD_DRETURN:
2109                                         M_DST(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
2110                                         break;
2111                                 }
2112
2113                                 M_ALD(rd->argintregs[0], REG_SP, rd->memuse * 8);
2114                                 M_JSR;
2115
2116                                 /* and now restore the proper return value */
2117
2118                                 switch (iptr->opc) {
2119                                 case ICMD_LRETURN:
2120                                 case ICMD_IRETURN:
2121                                 case ICMD_ARETURN:
2122                                         /* fall through */
2123                                         M_LLD(REG_RESULT , REG_SP, rd->memuse * 8 + 8);
2124                                         break;
2125                                 case ICMD_FRETURN:
2126                                         M_FLD(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
2127                                         break;
2128                                 case ICMD_DRETURN:
2129                                         M_DLD(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
2130                                         break;
2131                                 }
2132                         }
2133 #endif
2134
2135                         /* restore return address                                         */
2136
2137                         if (!jd->isleafmethod) {
2138                                 /* ATTENTION: Don't use REG_ZERO (r0) here, as M_ALD
2139                                    may have a displacement overflow. */
2140
2141                                 M_ALD(REG_ITMP1, REG_SP, p * 8 + LA_LR_OFFSET);
2142                                 M_MTLR(REG_ITMP1);
2143                         }
2144
2145                         /* restore saved registers                                        */
2146
2147                         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
2148                                 p--; M_LLD(rd->savintregs[i], REG_SP, p * 8);
2149                         }
2150                         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
2151                                 p--; M_DLD(rd->savfltregs[i], REG_SP, p * 8);
2152                         }
2153
2154                         /* deallocate stack                                               */
2155
2156                         if (stackframesize)
2157                                 M_LDA(REG_SP, REG_SP, stackframesize * 8);
2158
2159                         M_RET;
2160                         ALIGNCODENOP;
2161                         }
2162                         break;
2163
2164
2165                 case ICMD_TABLESWITCH:  /* ..., index ==> ...                         */
2166                         {
2167                         s4 i, l;
2168                         branch_target_t *table;
2169
2170                         table = iptr->dst.table;
2171
2172                         l = iptr->sx.s23.s2.tablelow;
2173                         i = iptr->sx.s23.s3.tablehigh;
2174
2175                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2176                         if (l == 0) {
2177                                 M_INTMOVE(s1, REG_ITMP1);
2178                         } else if (l <= 32768) {
2179                                 M_LDA(REG_ITMP1, s1, -l);
2180                         } else {
2181                                 ICONST(REG_ITMP2, l);
2182                                 M_SUB(s1, REG_ITMP2, REG_ITMP1);
2183                         }
2184
2185                         /* number of targets */
2186                         i = i - l + 1;
2187
2188                         /* range check */
2189
2190                         M_CMPUI(REG_ITMP1, i - 1);
2191                         M_BGT(0);
2192                         codegen_addreference(cd, table[0].block);
2193
2194                         /* build jump table top down and use address of lowest entry */
2195
2196                         table += i;
2197
2198                         while (--i >= 0) {
2199                                 dseg_addtarget(cd, table->block);
2200                                 --table;
2201                                 }
2202                         }
2203
2204                         /* length of dataseg after last dseg_addtarget is used by load */
2205
2206                         M_SLL_IMM(REG_ITMP1, 2, REG_ITMP1);
2207                         M_IADD(REG_ITMP1, REG_PV, REG_ITMP2);
2208                         M_ALD(REG_ITMP2, REG_ITMP2, -(cd->dseglen));
2209                         M_MTCTR(REG_ITMP2);
2210                         M_RTS;
2211                         ALIGNCODENOP;
2212                         break;
2213
2214
2215                 case ICMD_LOOKUPSWITCH: /* ..., key ==> ...                           */
2216                         {
2217                         s4 i, val;
2218                         lookup_target_t *lookup;
2219
2220                         lookup = iptr->dst.lookup;
2221
2222                         i = iptr->sx.s23.s2.lookupcount;
2223
2224                         MCODECHECK((i<<2)+8);
2225                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2226                         while (--i >= 0) {
2227                                 val = lookup->value;
2228                                 if ((val >= -32768) && (val <= 32767)) {
2229                                         M_CMPI(s1, val);
2230                                 } else {
2231                                         a = dseg_adds4(cd, val);
2232                                         M_ILD(REG_ITMP2, REG_PV, a);
2233                                         M_CMP(s1, REG_ITMP2);
2234                                 }
2235                                 M_BEQ(0);
2236                                 codegen_addreference(cd, lookup->target.block);
2237                                 ++lookup;
2238                         }
2239
2240                         M_BR(0);
2241                         codegen_addreference(cd, iptr->sx.s23.s3.lookupdefault.block);
2242
2243                         ALIGNCODENOP;
2244                         break;
2245                         }
2246
2247
2248                 case ICMD_BUILTIN:      /* ..., [arg1, [arg2 ...]] ==> ...            */
2249
2250                         bte = iptr->sx.s23.s3.bte;
2251                         md = bte->md;
2252                         goto gen_method;
2253
2254                 case ICMD_INVOKESTATIC: /* ..., [arg1, [arg2 ...]] ==> ...            */
2255
2256                 case ICMD_INVOKESPECIAL:/* ..., objectref, [arg1, [arg2 ...]] ==> ... */
2257                 case ICMD_INVOKEVIRTUAL:/* op1 = arg count, val.a = method pointer    */
2258                 case ICMD_INVOKEINTERFACE:
2259
2260                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2261                                 md = iptr->sx.s23.s3.um->methodref->parseddesc.md;
2262                                 lm = NULL;
2263                         }
2264                         else {
2265                                 lm = iptr->sx.s23.s3.fmiref->p.method;
2266                                 md = lm->parseddesc;
2267                         }
2268
2269 gen_method:
2270                         s3 = md->paramcount;
2271
2272                         MCODECHECK((s3 << 1) + 64);
2273
2274                         /* copy arguments to registers or stack location */
2275
2276                         for (s3 = s3 - 1; s3 >= 0; s3--) {
2277                                 var = VAR(iptr->sx.s23.s2.args[s3]);
2278
2279                                 if (var->flags & PREALLOC)
2280                                         continue;
2281
2282                                 if (IS_INT_LNG_TYPE(var->type)) {
2283                                         if (!md->params[s3].inmemory) {
2284                                                 s1 = rd->argintregs[md->params[s3].regoff];
2285                                                 d = emit_load(jd, iptr, var, s1);
2286                                                 M_LNGMOVE(d, s1);
2287                                         } else {
2288                                                 d = emit_load(jd, iptr, var, REG_ITMP1);
2289                                                 M_LST(d, REG_SP, md->params[s3].regoff * 8);
2290                                         }
2291                                 } else {
2292                                         if (!md->params[s3].inmemory) {
2293                                                 s1 = rd->argfltregs[md->params[s3].regoff];
2294                                                 d = emit_load(jd, iptr, var, s1);
2295                                                 M_FLTMOVE(d, s1);
2296                                         } else {
2297                                                 d = emit_load(jd, iptr, var, REG_FTMP1);
2298                                                 if (IS_2_WORD_TYPE(var->type))
2299                                                         M_DST(d, REG_SP, md->params[s3].regoff * 8);
2300                                                 else
2301                                                         M_FST(d, REG_SP, md->params[s3].regoff * 8);
2302                                         }
2303                                 }
2304                         } /* end of for */
2305
2306                         switch (iptr->opc) {
2307                         case ICMD_BUILTIN:
2308                                 disp = dseg_addaddress(cd, bte->fp);
2309                                 d = md->returntype.type;
2310
2311                                 M_ALD(REG_PV, REG_PV, disp);    /* pointer to built-in-function descriptor */
2312                                 M_ALD(REG_ITMP1, REG_PV, 0);    /* function entry point address, what about TOC */
2313                                 M_MTCTR(REG_ITMP1);
2314                                 M_JSR;
2315
2316                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2317                                 M_MFLR(REG_ITMP1);
2318                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2319
2320
2321                                 if (INSTRUCTION_MUST_CHECK(iptr)) {
2322                                         M_CMPI(REG_RESULT, 0);
2323                                         M_BEQ(0);
2324                                         codegen_add_fillinstacktrace_ref(cd);
2325                                 }
2326                                 break;
2327
2328                         case ICMD_INVOKESPECIAL:
2329                                 gen_nullptr_check(rd->argintregs[0]);
2330                                 M_ILD(REG_ITMP1, rd->argintregs[0], 0); /* hardware nullptr   */
2331                                 /* fall through */
2332
2333                         case ICMD_INVOKESTATIC:
2334                                 if (lm == NULL) {
2335                                         unresolved_method *um = iptr->sx.s23.s3.um;
2336
2337                                         disp = dseg_addaddress(cd, NULL);
2338
2339                                         codegen_addpatchref(cd, PATCHER_invokestatic_special,
2340                                                                                 um, disp);
2341
2342                                         if (opt_showdisassemble)
2343                                                 M_NOP;
2344
2345                                         d = md->returntype.type;
2346
2347                                 } else {
2348                                         disp = dseg_addaddress(cd, lm->stubroutine);
2349                                         d = md->returntype.type;
2350                                 }
2351
2352                                 M_NOP;
2353                                 M_ALD(REG_PV, REG_PV, disp);
2354                                 M_MTCTR(REG_PV);
2355                                 M_JSR;
2356                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2357                                 M_MFLR(REG_ITMP1);
2358                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2359                                 break;
2360
2361                         case ICMD_INVOKEVIRTUAL:
2362                                 gen_nullptr_check(rd->argintregs[0]);
2363
2364                                 if (lm == NULL) {
2365                                         unresolved_method *um = iptr->sx.s23.s3.um;
2366
2367                                         codegen_addpatchref(cd, PATCHER_invokevirtual, um, 0);
2368
2369                                         if (opt_showdisassemble)
2370                                                 M_NOP;
2371
2372                                         s1 = 0;
2373                                         d = md->returntype.type;
2374
2375                                 } else {
2376                                         s1 = OFFSET(vftbl_t, table[0]) +
2377                                                 sizeof(methodptr) * lm->vftblindex;
2378                                         d = md->returntype.type;
2379                                 }
2380
2381                                 M_ALD(REG_METHODPTR, rd->argintregs[0],
2382                                           OFFSET(java_objectheader, vftbl));
2383                                 M_ALD(REG_PV, REG_METHODPTR, s1);
2384                                 M_MTCTR(REG_PV);
2385                                 M_JSR;
2386                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2387                                 M_MFLR(REG_ITMP1);
2388                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2389                                 break;
2390
2391                         case ICMD_INVOKEINTERFACE:
2392                                 gen_nullptr_check(rd->argintregs[0]);
2393
2394                                 if (lm == NULL) {
2395                                         unresolved_method *um = iptr->sx.s23.s3.um;
2396
2397                                         codegen_addpatchref(cd, PATCHER_invokeinterface, um, 0);
2398
2399                                         if (opt_showdisassemble)
2400                                                 M_NOP;
2401
2402                                         s1 = 0;
2403                                         s2 = 0;
2404                                         d = md->returntype.type;
2405
2406                                 } else {
2407                                         s1 = OFFSET(vftbl_t, interfacetable[0]) -
2408                                                 sizeof(methodptr*) * lm->class->index;
2409
2410                                         s2 = sizeof(methodptr) * (lm - lm->class->methods);
2411
2412                                         d = md->returntype.type;
2413                                 }
2414
2415                                 M_ALD(REG_METHODPTR, rd->argintregs[0],
2416                                           OFFSET(java_objectheader, vftbl));
2417                                 M_ALD(REG_METHODPTR, REG_METHODPTR, s1);
2418                                 M_ALD(REG_PV, REG_METHODPTR, s2);
2419                                 M_MTCTR(REG_PV);
2420                                 M_JSR;
2421                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2422                                 M_MFLR(REG_ITMP1);
2423                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2424                                 break;
2425                         }
2426
2427                         /* d contains return type */
2428
2429                         if (d != TYPE_VOID) {
2430                                 if (IS_INT_LNG_TYPE(d)) {
2431                                         s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2432                                         M_MOV(REG_RESULT, s1);
2433                                 } else {
2434                                         s1 = codegen_reg_of_dst(jd, iptr, REG_FRESULT);
2435                                         M_FLTMOVE(REG_FRESULT, s1);
2436                                 }
2437                                 emit_store_dst(jd, iptr, s1);
2438                         }
2439                         break;
2440
2441
2442                 case ICMD_CHECKCAST:  /* ..., objectref ==> ..., objectref            */
2443                                       /* val.a: (classinfo*) superclass               */
2444
2445                         /*  superclass is an interface:
2446                          *
2447                          *  OK if ((sub == NULL) ||
2448                          *         (sub->vftbl->interfacetablelength > super->index) &&
2449                          *         (sub->vftbl->interfacetable[-super->index] != NULL));
2450                          *
2451                          *  superclass is a class:
2452                          *
2453                          *  OK if ((sub == NULL) || (0
2454                          *         <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2455                          *         super->vftbl->diffvall));
2456                          */
2457
2458                         if (!(iptr->flags.bits & INS_FLAG_ARRAY)) {
2459                                 /* object type cast-check */
2460
2461                                 classinfo *super;
2462                                 vftbl_t   *supervftbl;
2463                                 s4         superindex;
2464
2465                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2466                                         super = NULL;
2467                                         superindex = 0;
2468                                         supervftbl = NULL;
2469                                 }
2470                                 else {
2471                                         super = iptr->sx.s23.s3.c.cls;
2472                                         superindex = super->index;
2473                                         supervftbl = super->vftbl;
2474                                 }
2475
2476 #if defined(ENABLE_THREADS)
2477                                 codegen_threadcritrestart(cd, cd->mcodeptr - cd->mcodebase);
2478 #endif
2479                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2480
2481                                 /* calculate interface checkcast code size */
2482
2483                                 s2 = 7;
2484                                 if (!super)
2485                                         s2 += (opt_showdisassemble ? 1 : 0);
2486
2487                                 /* calculate class checkcast code size */
2488
2489                                 s3 = 8 + (s1 == REG_ITMP1);
2490                                 if (!super)
2491                                         s3 += (opt_showdisassemble ? 1 : 0);
2492
2493                                 /* if class is not resolved, check which code to call */
2494
2495                                 if (!super) {
2496                                         M_TST(s1);
2497                                         M_BEQ(3 + (opt_showdisassemble ? 1 : 0) + s2 + 1 + s3);
2498
2499                                         disp = dseg_adds4(cd, 0);                     /* super->flags */
2500
2501                                         codegen_addpatchref(cd,
2502                                                                                 PATCHER_checkcast_instanceof_flags,
2503                                                                                 iptr->sx.s23.s3.c.ref,
2504                                                                                 disp);
2505
2506                                         if (opt_showdisassemble)
2507                                                 M_NOP;
2508
2509                                         M_ILD(REG_ITMP2, REG_PV, disp);
2510                                         M_AND_IMM(REG_ITMP2, ACC_INTERFACE, REG_ITMP2);
2511                                         M_BEQ(s2 + 1);
2512                                 }
2513
2514                                 /* interface checkcast code */
2515
2516                                 if (!super || (super->flags & ACC_INTERFACE)) {
2517                                         if (super) {
2518                                                 M_TST(s1);
2519                                                 M_BEQ(s2);
2520
2521                                         } else {
2522                                                 codegen_addpatchref(cd,
2523                                                                                         PATCHER_checkcast_instanceof_interface,
2524                                                                                         iptr->sx.s23.s3.c.ref,
2525                                                                                         0);
2526
2527                                                 if (opt_showdisassemble)
2528                                                         M_NOP;
2529                                         }
2530
2531                                         M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2532                                         M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, interfacetablelength));
2533                                         M_LDATST(REG_ITMP3, REG_ITMP3, -superindex);
2534                                         M_BLE(0);
2535                                         codegen_add_classcastexception_ref(cd, s1);     /*XXX s1?? */
2536                                         M_ALD(REG_ITMP3, REG_ITMP2,
2537                                                   OFFSET(vftbl_t, interfacetable[0]) -
2538                                                   superindex * sizeof(methodptr*));
2539                                         M_TST(REG_ITMP3);
2540                                         M_BEQ(0);
2541                                         codegen_add_classcastexception_ref(cd, s1);     /*XXX s1??*/
2542
2543                                         if (!super)
2544                                                 M_BR(s3);
2545                                 }
2546
2547                                 /* class checkcast code */
2548
2549                                 if (!super || !(super->flags & ACC_INTERFACE)) {
2550                                         disp = dseg_addaddress(cd, supervftbl);
2551
2552                                         if (super) {
2553                                                 M_TST(s1);
2554                                                 M_BEQ(s3);
2555
2556                                         } else {
2557                                                 codegen_addpatchref(cd, PATCHER_checkcast_class,
2558                                                                                         iptr->sx.s23.s3.c.ref,
2559                                                                                         disp);
2560
2561                                                 if (opt_showdisassemble)
2562                                                         M_NOP;
2563                                         }
2564
2565                                         M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2566 #if defined(ENABLE_THREADS)
2567                                         codegen_threadcritstart(cd, cd->mcodeptr - cd->mcodebase);
2568 #endif
2569                                         M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2570                                         M_ALD(REG_ITMP2, REG_PV, disp);
2571                                         if (s1 != REG_ITMP1) {
2572                                                 M_ILD(REG_ITMP1, REG_ITMP2, OFFSET(vftbl_t, baseval));
2573                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2574 #if defined(ENABLE_THREADS)
2575                                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2576 #endif
2577                                                 M_SUB(REG_ITMP3, REG_ITMP1, REG_ITMP3);
2578                                         } else {
2579                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, baseval));
2580                                                 M_SUB(REG_ITMP3, REG_ITMP2, REG_ITMP3);
2581                                                 M_ALD(REG_ITMP2, REG_PV, disp);
2582                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2583 #if defined(ENABLE_THREADS)
2584                                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2585 #endif
2586                                         }
2587                                         M_CMP(REG_ITMP3, REG_ITMP2);
2588                                         M_BGT(0);
2589                                         codegen_add_classcastexception_ref(cd, s1); /* XXX s1? */
2590                                 }
2591                                 d = codegen_reg_of_dst(jd, iptr, s1);
2592
2593                         } else {
2594                                 /* array type cast-check */
2595
2596                                 s1 = emit_load_s1(jd, iptr, rd->argintregs[0]);
2597                                 M_INTMOVE(s1, rd->argintregs[0]);
2598
2599                                 disp = dseg_addaddress(cd, iptr->sx.s23.s3.c.cls);
2600
2601                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2602                                         codegen_addpatchref(cd, PATCHER_builtin_arraycheckcast,
2603                                                                                 iptr->sx.s23.s3.c.ref,
2604                                                                                 disp);
2605
2606                                         if (opt_showdisassemble)
2607                                                 M_NOP;
2608                                 }
2609
2610                                 M_ALD(rd->argintregs[1], REG_PV, disp);
2611                                 disp = dseg_addaddress(cd, BUILTIN_arraycheckcast);
2612                                 M_ALD(REG_ITMP2, REG_PV, disp);
2613                                 M_ALD(REG_ITMP2, REG_ITMP2, 0); /* TOC */
2614                                 M_MTCTR(REG_ITMP2);
2615                                 M_JSR;
2616                                 M_TST(REG_RESULT);
2617                                 M_BEQ(0);
2618                                 codegen_add_classcastexception_ref(cd, s1); /* XXX s1? */
2619
2620                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2621                                 d = codegen_reg_of_dst(jd, iptr, s1);
2622                         }
2623                         M_INTMOVE(s1, d);
2624                         emit_store_dst(jd, iptr, d);
2625                         break;
2626
2627                 case ICMD_INSTANCEOF: /* ..., objectref ==> ..., intresult            */
2628                                       /* val.a: (classinfo*) superclass               */
2629
2630                         /*  superclass is an interface:
2631                          *
2632                          *  return (sub != NULL) &&
2633                          *         (sub->vftbl->interfacetablelength > super->index) &&
2634                          *         (sub->vftbl->interfacetable[-super->index] != NULL);
2635                          *
2636                          *  superclass is a class:
2637                          *
2638                          *  return ((sub != NULL) && (0
2639                          *          <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2640                          *          super->vftbl->diffvall));
2641                          */
2642
2643                         {
2644                         classinfo *super;
2645                         vftbl_t   *supervftbl;
2646                         s4         superindex;
2647
2648                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2649                                 super = NULL;
2650                                 superindex = 0;
2651                                 supervftbl = NULL;
2652                         }
2653                         else {
2654                                 super = iptr->sx.s23.s3.c.cls;
2655                                 superindex = super->index;
2656                                 supervftbl = super->vftbl;
2657                         }
2658
2659 #if defined(ENABLE_THREADS)
2660             codegen_threadcritrestart(cd, cd->mcodeptr - cd->mcodebase);
2661 #endif
2662                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2663                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
2664                         if (s1 == d) {
2665                                 M_MOV(s1, REG_ITMP1);
2666                                 s1 = REG_ITMP1;
2667                         }
2668
2669                         /* calculate interface instanceof code size */
2670
2671                         s2 = 8;
2672                         if (!super)
2673                                 s2 += (opt_showdisassemble ? 1 : 0);
2674
2675                         /* calculate class instanceof code size */
2676
2677                         s3 = 10;
2678                         if (!super)
2679                                 s3 += (opt_showdisassemble ? 1 : 0);
2680
2681                         M_CLR(d);
2682
2683                         /* if class is not resolved, check which code to call */
2684
2685                         if (!super) {
2686                                 M_TST(s1);
2687                                 M_BEQ(3 + (opt_showdisassemble ? 1 : 0) + s2 + 1 + s3);
2688
2689                                 disp = dseg_adds4(cd, 0);                     /* super->flags */
2690
2691                                 codegen_addpatchref(cd, PATCHER_checkcast_instanceof_flags,
2692                                                                         iptr->sx.s23.s3.c.ref, disp);
2693
2694                                 if (opt_showdisassemble)
2695                                         M_NOP;
2696
2697                                 M_ILD(REG_ITMP3, REG_PV, disp);
2698                                 M_AND_IMM(REG_ITMP3, ACC_INTERFACE, REG_ITMP3);
2699                                 M_BEQ(s2 + 1);
2700                         }
2701
2702                         /* interface instanceof code */
2703
2704                         if (!super || (super->flags & ACC_INTERFACE)) {
2705                                 if (super) {
2706                                         M_TST(s1);
2707                                         M_BEQ(s2);
2708
2709                                 } else {
2710                                         codegen_addpatchref(cd,
2711                                                                                 PATCHER_checkcast_instanceof_interface,
2712                                                                                 iptr->sx.s23.s3.c.ref, 0);
2713
2714                                         if (opt_showdisassemble)
2715                                                 M_NOP;
2716                                 }
2717
2718                                 M_ALD(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
2719                                 M_ILD(REG_ITMP3, REG_ITMP1, OFFSET(vftbl_t, interfacetablelength));
2720                                 M_LDATST(REG_ITMP3, REG_ITMP3, -superindex);
2721                                 M_BLE(4);
2722                                 M_ALD(REG_ITMP1, REG_ITMP1,
2723                                           OFFSET(vftbl_t, interfacetable[0]) -
2724                                           superindex * sizeof(methodptr*));
2725                                 M_TST(REG_ITMP1);
2726                                 M_BEQ(1);
2727                                 M_IADD_IMM(REG_ZERO, 1, d);
2728
2729                                 if (!super)
2730                                         M_BR(s3);
2731                         }
2732
2733                         /* class instanceof code */
2734
2735                         if (!super || !(super->flags & ACC_INTERFACE)) {
2736                                 disp = dseg_addaddress(cd, supervftbl);
2737
2738                                 if (super) {
2739                                         M_TST(s1);
2740                                         M_BEQ(s3);
2741
2742                                 } else {
2743                                         codegen_addpatchref(cd, PATCHER_instanceof_class,
2744                                                                                 iptr->sx.s23.s3.c.ref,
2745                                                                                 disp);
2746
2747                                         if (opt_showdisassemble) {
2748                                                 M_NOP;
2749                                         }
2750                                 }
2751
2752                                 M_ALD(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
2753                                 M_ALD(REG_ITMP2, REG_PV, disp);
2754 #if defined(ENABLE_THREADS)
2755                                 codegen_threadcritstart(cd, cd->mcodeptr - cd->mcodebase);
2756 #endif
2757                                 M_ILD(REG_ITMP1, REG_ITMP1, OFFSET(vftbl_t, baseval));
2758                                 M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2759                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2760 #if defined(ENABLE_THREADS)
2761                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2762 #endif
2763                                 M_SUB(REG_ITMP1, REG_ITMP3, REG_ITMP1);
2764                                 M_CMPU(REG_ITMP1, REG_ITMP2);
2765                                 M_CLR(d);
2766                                 M_BGT(1);
2767                                 M_IADD_IMM(REG_ZERO, 1, d);
2768                         }
2769                         emit_store_dst(jd, iptr, d);
2770                         }
2771                         break;
2772
2773                 case ICMD_MULTIANEWARRAY:/* ..., cnt1, [cnt2, ...] ==> ..., arrayref  */
2774
2775                         /* check for negative sizes and copy sizes to stack if necessary  */
2776
2777                         MCODECHECK((iptr->s1.argcount << 1) + 64);
2778
2779                         for (s1 = iptr->s1.argcount; --s1 >= 0; ) {
2780
2781                                 var = VAR(iptr->sx.s23.s2.args[s1]);
2782
2783                                 /* copy SAVEDVAR sizes to stack */
2784
2785                                 if (!(var->flags & PREALLOC)) {
2786                                         s2 = emit_load(jd, iptr, var, REG_ITMP1);
2787 #if defined(__DARWIN__)
2788                                         M_IST(s2, REG_SP, LA_SIZE + (s1 + INT_ARG_CNT) * 4);
2789 #else
2790                                         M_IST(s2, REG_SP, LA_SIZE + (s1 + 3) * 4);
2791 #endif
2792                                 }
2793                         }
2794
2795                         /* a0 = dimension count */
2796
2797                         ICONST(rd->argintregs[0], iptr->s1.argcount);
2798
2799                         /* is patcher function set? */
2800
2801                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2802                                 disp = dseg_addaddress(cd, NULL);
2803
2804                                 codegen_addpatchref(cd, PATCHER_builtin_multianewarray,
2805                                                                         iptr->sx.s23.s3.c.ref, disp);
2806
2807                                 if (opt_showdisassemble)
2808                                         M_NOP;
2809
2810                         } else {
2811                                 disp = dseg_addaddress(cd, iptr->sx.s23.s3.c.cls);
2812                         }
2813
2814                         /* a1 = arraydescriptor */
2815
2816                         M_ALD(rd->argintregs[1], REG_PV, disp);
2817
2818                         /* a2 = pointer to dimensions = stack pointer */
2819
2820 #if defined(__DARWIN__)
2821                         M_LDA(rd->argintregs[2], REG_SP, LA_SIZE + INT_ARG_CNT * 4);
2822 #else
2823                         M_LDA(rd->argintregs[2], REG_SP, LA_SIZE + 3 * 4);
2824 #endif
2825
2826                         disp = dseg_addaddress(cd, BUILTIN_multianewarray);
2827                         M_ALD(REG_ITMP3, REG_PV, disp);
2828                         M_MTCTR(REG_ITMP3);
2829                         M_JSR;
2830
2831                         /* check for exception before result assignment */
2832
2833                         M_CMPI(REG_RESULT, 0);
2834                         M_BEQ(0);
2835                         codegen_add_fillinstacktrace_ref(cd);
2836
2837                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2838                         M_INTMOVE(REG_RESULT, d);
2839                         emit_store_dst(jd, iptr, d);
2840                         break;
2841
2842                 default:
2843                         *exceptionptr =
2844                                 new_internalerror("Unknown ICMD %d during code generation",
2845                                                                   iptr->opc);
2846                         return false;
2847         } /* switch */
2848
2849         } /* for instruction */
2850
2851         } /* if (bptr -> flags >= BBREACHED) */
2852         } /* for basic block */
2853
2854         dseg_createlinenumbertable(cd);
2855
2856
2857         /* generate exception and patcher stubs */
2858
2859         {
2860                 exceptionref *eref;
2861                 patchref     *pref;
2862                 u4            mcode;
2863                 u1           *savedmcodeptr;
2864                 u1           *tmpmcodeptr;
2865
2866                 savedmcodeptr = NULL;
2867
2868                 /* generate exception stubs */
2869
2870                 for (eref = cd->exceptionrefs; eref != NULL; eref = eref->next) {
2871                         gen_resolvebranch(cd->mcodebase + eref->branchpos,
2872                                                           eref->branchpos, cd->mcodeptr - cd->mcodebase);
2873
2874                         MCODECHECK(100);
2875
2876                         /* Check if the exception is an
2877                            ArrayIndexOutOfBoundsException.  If so, move index register
2878                            into REG_ITMP1. */
2879
2880                         if (eref->reg != -1)
2881                                 M_MOV(eref->reg, REG_ITMP1);
2882
2883                         /* calcuate exception address */
2884
2885                         M_LDA(REG_ITMP2_XPC, REG_PV, eref->branchpos - 4);
2886
2887                         /* move function to call into REG_ITMP3 */
2888
2889                         disp = dseg_addaddress(cd, eref->function);
2890                         M_ALD(REG_ITMP3, REG_PV, disp);
2891                         M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
2892
2893                         if (savedmcodeptr != NULL) {
2894                                 disp = ((u4 *) savedmcodeptr) - (((u4 *) cd->mcodeptr) + 1);
2895                                 M_BR(disp);
2896
2897                         } else {
2898                                 savedmcodeptr = cd->mcodeptr;
2899
2900                                 if (jd->isleafmethod) {
2901                                         M_MFLR(REG_ZERO);
2902                                         M_AST(REG_ZERO, REG_SP, stackframesize * 8 + LA_LR_OFFSET);
2903                                 }
2904
2905                                 M_MOV(REG_PV, rd->argintregs[0]);
2906                                 M_MOV(REG_SP, rd->argintregs[1]);
2907
2908                                 if (jd->isleafmethod)
2909                                         M_MOV(REG_ZERO, rd->argintregs[2]);
2910                                 else
2911                                         M_ALD(rd->argintregs[2],
2912                                                   REG_SP, stackframesize * 8 + LA_LR_OFFSET);
2913
2914                                 M_MOV(REG_ITMP2_XPC, rd->argintregs[3]);
2915                                 M_MOV(REG_ITMP1, rd->argintregs[4]);
2916
2917                                 M_STDU(REG_SP, REG_SP, -(LA_SIZE + 6 * 8));
2918                                 M_AST(REG_ITMP2_XPC, REG_SP, LA_SIZE + 5 * 8);
2919
2920                                 M_MTCTR(REG_ITMP3);
2921                                 M_JSR;
2922                                 M_MOV(REG_RESULT, REG_ITMP1_XPTR);
2923
2924                                 M_ALD(REG_ITMP2_XPC, REG_SP, LA_SIZE + 5 * 8);
2925                                 M_LADD_IMM(REG_SP, LA_SIZE + 6 * 8, REG_SP);
2926
2927                                 if (jd->isleafmethod) {
2928                                         /* XXX FIXME: REG_ZERO can cause problems here! */
2929                                         assert(stackframesize * 8 <= 32767);
2930
2931                                         M_ALD(REG_ZERO, REG_SP, stackframesize * 8 + LA_LR_OFFSET);
2932                                         M_MTLR(REG_ZERO);
2933                                 }
2934
2935                                 disp = dseg_addaddress(cd, asm_handle_exception);
2936                                 M_ALD(REG_ITMP3, REG_PV, disp);
2937                                 M_MTCTR(REG_ITMP3);
2938                                 M_RTS;
2939                         }
2940                 }
2941
2942
2943                 /* generate code patching stub call code */
2944
2945                 for (pref = cd->patchrefs; pref != NULL; pref = pref->next) {
2946                         /* check code segment size */
2947
2948                         MCODECHECK(16);
2949
2950                         /* Get machine code which is patched back in later. The
2951                            call is 1 instruction word long. */
2952
2953                         tmpmcodeptr = (u1 *) (cd->mcodebase + pref->branchpos);
2954
2955                         mcode = *((u4 *) tmpmcodeptr);
2956
2957                         /* Patch in the call to call the following code (done at
2958                            compile time). */
2959
2960                         savedmcodeptr = cd->mcodeptr;   /* save current mcodeptr          */
2961                         cd->mcodeptr  = tmpmcodeptr;    /* set mcodeptr to patch position */
2962
2963                         disp = ((u4 *) savedmcodeptr) - (((u4 *) tmpmcodeptr) + 1);
2964                         M_BR(disp);
2965
2966                         cd->mcodeptr = savedmcodeptr;   /* restore the current mcodeptr   */
2967
2968                         /* create stack frame - keep stack 16-byte aligned */
2969
2970                         M_AADD_IMM(REG_SP, -8 * 8, REG_SP);
2971
2972                         /* calculate return address and move it onto the stack */
2973
2974                         M_LDA(REG_ITMP3, REG_PV, pref->branchpos);
2975                         M_AST_INTERN(REG_ITMP3, REG_SP, 5 * 8);
2976
2977                         /* move pointer to java_objectheader onto stack */
2978
2979 #if defined(ENABLE_THREADS)
2980                         /* order reversed because of data segment layout */
2981
2982                         (void) dseg_addaddress(cd, NULL);                         /* flcword    */
2983                         (void) dseg_addaddress(cd, lock_get_initial_lock_word()); /* monitorPtr */
2984                         disp = dseg_addaddress(cd, NULL);                         /* vftbl      */
2985
2986                         M_LDA(REG_ITMP3, REG_PV, disp);
2987                         M_AST_INTERN(REG_ITMP3, REG_SP, 4 * 8);
2988 #else
2989                         /* do nothing */
2990 #endif
2991
2992                         /* move machine code onto stack */
2993
2994                         disp = dseg_adds4(cd, mcode);
2995                         M_ILD(REG_ITMP3, REG_PV, disp);
2996                         M_IST_INTERN(REG_ITMP3, REG_SP, 3 * 8);
2997
2998                         /* move class/method/field reference onto stack */
2999
3000                         disp = dseg_addaddress(cd, pref->ref);
3001                         M_ALD(REG_ITMP3, REG_PV, disp);
3002                         M_AST_INTERN(REG_ITMP3, REG_SP, 2 * 8);
3003
3004                         /* move data segment displacement onto stack */
3005
3006                         disp = dseg_addaddress(cd, pref->disp);
3007                         M_LLD(REG_ITMP3, REG_PV, disp);
3008                         M_IST_INTERN(REG_ITMP3, REG_SP, 1 * 8);
3009
3010                         /* move patcher function pointer onto stack */
3011
3012                         disp = dseg_addaddress(cd, pref->patcher);
3013                         M_ALD(REG_ITMP3, REG_PV, disp);
3014                         M_AST_INTERN(REG_ITMP3, REG_SP, 0 * 8);
3015
3016                         disp = dseg_addaddress(cd, asm_patcher_wrapper);
3017                         M_ALD(REG_ITMP3, REG_PV, disp);
3018                         M_MTCTR(REG_ITMP3);
3019                         M_RTS;
3020                 }
3021
3022                 /* generate replacement-out stubs */
3023
3024 #if 0
3025                 {
3026                         int i;
3027
3028                         replacementpoint = jd->code->rplpoints;
3029
3030                         for (i = 0; i < jd->code->rplpointcount; ++i, ++replacementpoint) {
3031                                 /* check code segment size */
3032
3033                                 MCODECHECK(100);
3034
3035                                 /* note start of stub code */
3036
3037                                 replacementpoint->outcode = (u1 *) (cd->mcodeptr - cd->mcodebase);
3038
3039                                 /* make machine code for patching */
3040
3041                                 tmpmcodeptr  = cd->mcodeptr;
3042                                 cd->mcodeptr = (u1 *) &(replacementpoint->mcode) + 1 /* big-endian */;
3043
3044                                 disp = (ptrint)((s4*)replacementpoint->outcode - (s4*)replacementpoint->pc) - 1;
3045                                 M_BR(disp);
3046
3047                                 cd->mcodeptr = tmpmcodeptr;
3048
3049                                 /* create stack frame - keep 16-byte aligned */
3050
3051                                 M_AADD_IMM(REG_SP, -4 * 4, REG_SP);
3052
3053                                 /* push address of `rplpoint` struct */
3054
3055                                 disp = dseg_addaddress(cd, replacementpoint);
3056                                 M_ALD(REG_ITMP3, REG_PV, disp);
3057                                 M_AST_INTERN(REG_ITMP3, REG_SP, 0 * 4);
3058
3059                                 /* jump to replacement function */
3060
3061                                 disp = dseg_addaddress(cd, asm_replacement_out);
3062                                 M_ALD(REG_ITMP3, REG_PV, disp);
3063                                 M_MTCTR(REG_ITMP3);
3064                                 M_RTS;
3065                         }
3066                 }
3067 #endif
3068         }
3069
3070         codegen_finish(jd);
3071
3072         /* everything's ok */
3073
3074         return true;
3075 }
3076
3077
3078 /* createcompilerstub **********************************************************
3079
3080    Creates a stub routine which calls the compiler.
3081
3082 *******************************************************************************/
3083
3084 #define COMPILERSTUB_DATASIZE    3 * SIZEOF_VOID_P
3085 #define COMPILERSTUB_CODESIZE    4 * 4
3086
3087 #define COMPILERSTUB_SIZE        COMPILERSTUB_DATASIZE + COMPILERSTUB_CODESIZE
3088
3089
3090 u1 *createcompilerstub(methodinfo *m)
3091 {
3092         u1          *s;                     /* memory to hold the stub            */
3093         ptrint      *d;
3094         codeinfo    *code;
3095         codegendata *cd;
3096         s4           dumpsize;
3097
3098         s = CNEW(u1, COMPILERSTUB_SIZE);
3099
3100         /* set data pointer and code pointer */
3101
3102         d = (ptrint *) s;
3103         s = s + COMPILERSTUB_DATASIZE;
3104
3105         /* mark start of dump memory area */
3106
3107         dumpsize = dump_size();
3108
3109         cd = DNEW(codegendata);
3110         cd->mcodeptr = s;
3111
3112         /* Store the codeinfo pointer in the same place as in the
3113            methodheader for compiled methods. */
3114
3115         code = code_codeinfo_new(m);
3116
3117         d[0] = (ptrint) asm_call_jit_compiler;
3118         d[1] = (ptrint) m;
3119         d[2] = (ptrint) code;
3120
3121         M_ALD_INTERN(REG_ITMP1, REG_PV, -2 * SIZEOF_VOID_P);
3122         M_ALD_INTERN(REG_PV, REG_PV, -3 * SIZEOF_VOID_P);
3123         M_MTCTR(REG_PV);
3124         M_RTS;
3125
3126         md_cacheflush((u1 *) d, COMPILERSTUB_SIZE);
3127
3128 #if defined(ENABLE_STATISTICS)
3129         if (opt_stat)
3130                 count_cstub_len += COMPILERSTUB_SIZE;
3131 #endif
3132
3133         /* release dump area */
3134
3135         dump_release(dumpsize);
3136
3137         return s;
3138 }
3139
3140
3141 /* createnativestub ************************************************************
3142
3143    Creates a stub routine which calls a native method.
3144
3145 *******************************************************************************/
3146
3147 u1 *createnativestub(functionptr f, jitdata *jd, methoddesc *nmd)
3148 {
3149         methodinfo   *m;
3150         codeinfo     *code;
3151         codegendata  *cd;
3152         registerdata *rd;
3153         s4            stackframesize;       /* size of stackframe if needed       */
3154         methoddesc   *md;
3155         s4            nativeparams;
3156         s4            i, j;                 /* count variables                    */
3157         s4            t;
3158         s4            s1, s2, disp;
3159         s4            funcdisp;
3160
3161         /* get required compiler data */
3162
3163         m    = jd->m;
3164         code = jd->code;
3165         cd   = jd->cd;
3166         rd   = jd->rd;
3167
3168         /* set some variables */
3169
3170         md = m->parseddesc;
3171         nativeparams = (m->flags & ACC_STATIC) ? 2 : 1;
3172
3173         /* calculate stackframe size */
3174
3175         stackframesize =
3176                 sizeof(stackframeinfo) / SIZEOF_VOID_P +
3177                 sizeof(localref_table) / SIZEOF_VOID_P +
3178                 4 +                            /* 4 stackframeinfo arguments (darwin)*/
3179                 nmd->paramcount  +
3180                 nmd->memuse;
3181
3182         stackframesize = (stackframesize + 3) & ~3; /* keep stack 16-byte aligned */
3183
3184         /* create method header */
3185
3186         (void) dseg_addaddress(cd, code);                      /* CodeinfoPointer */
3187         (void) dseg_adds4(cd, stackframesize * 8);             /* FrameSize       */
3188         (void) dseg_adds4(cd, 0);                              /* IsSync          */
3189         (void) dseg_adds4(cd, 0);                              /* IsLeaf          */
3190         (void) dseg_adds4(cd, 0);                              /* IntSave         */
3191         (void) dseg_adds4(cd, 0);                              /* FltSave         */
3192         (void) dseg_addlinenumbertablesize(cd);
3193         (void) dseg_adds4(cd, 0);                              /* ExTableSize     */
3194
3195         /* generate code */
3196
3197         M_MFLR(REG_ZERO);
3198         M_AST_INTERN(REG_ZERO, REG_SP, LA_LR_OFFSET);
3199         M_STDU(REG_SP, REG_SP, -(stackframesize * 8));
3200
3201 #if !defined(NDEBUG)
3202         if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
3203                 emit_verbosecall_enter(jd);
3204         }
3205 #endif
3206         /* get function address (this must happen before the stackframeinfo) */
3207
3208         funcdisp = dseg_addaddress(cd, f);
3209
3210 #if !defined(WITH_STATIC_CLASSPATH)
3211         if (f == NULL) {
3212                 codegen_addpatchref(cd, PATCHER_resolve_native, m, funcdisp);
3213
3214                 if (opt_showdisassemble)
3215                         M_NOP;
3216         }
3217 #endif
3218
3219         /* save integer and float argument registers */
3220
3221         j = 0;
3222
3223         for (i = 0; i < md->paramcount; i++) {
3224                 t = md->paramtypes[i].type;
3225
3226                 if (IS_INT_LNG_TYPE(t)) {
3227                         if (!md->params[i].inmemory) {
3228                                 s1 = md->params[i].regoff;
3229                                 M_LST(rd->argintregs[s1], REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + j * 8);
3230                                 j++;
3231                         }
3232                 }
3233         }
3234
3235         for (i = 0; i < md->paramcount; i++) {
3236                 if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
3237                         if (!md->params[i].inmemory) {
3238                                 s1 = md->params[i].regoff;
3239                                 M_DST(rd->argfltregs[s1], REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + j * 8);
3240                                 j++;
3241                         }
3242                 }
3243         }
3244
3245         /* create native stack info */
3246
3247         M_AADD_IMM(REG_SP, stackframesize * 8, rd->argintregs[0]);
3248         M_MOV(REG_PV, rd->argintregs[1]);
3249         M_AADD_IMM(REG_SP, stackframesize * 8, rd->argintregs[2]);
3250         M_ALD(rd->argintregs[3], REG_SP, stackframesize * 8 + LA_LR_OFFSET);
3251         disp = dseg_addaddress(cd, codegen_start_native_call);
3252
3253         M_ALD(REG_ITMP1, REG_PV, disp);
3254         M_ALD(REG_ITMP1, REG_ITMP1, 0);         /* TOC */
3255         M_MTCTR(REG_ITMP1);
3256         M_JSR;
3257
3258         /* restore integer and float argument registers */
3259
3260         j = 0;
3261
3262         for (i = 0; i < md->paramcount; i++) {
3263                 t = md->paramtypes[i].type;
3264
3265                 if (IS_INT_LNG_TYPE(t)) {
3266                         if (!md->params[i].inmemory) {
3267                                 s1 = md->params[i].regoff;
3268                                 M_LLD(rd->argintregs[s1], REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + j * 8);
3269                                 j++;
3270                         }
3271                 }
3272         }
3273
3274         for (i = 0; i < md->paramcount; i++) {
3275                 if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
3276                         if (!md->params[i].inmemory) {
3277                                 s1 = md->params[i].regoff;
3278                                 M_DLD(rd->argfltregs[s1], REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + j * 8);
3279                                 j++;
3280                         }
3281                 }
3282         }
3283
3284         /* copy or spill arguments to new locations */
3285
3286         for (i = md->paramcount - 1, j = i + nativeparams; i >= 0; i--, j--) {
3287                 t = md->paramtypes[i].type;
3288
3289                 if (IS_INT_LNG_TYPE(t)) {
3290                         if (!md->params[i].inmemory) {
3291                                 s1 = rd->argintregs[md->params[i].regoff];
3292
3293                                 if (!nmd->params[j].inmemory) {
3294                                         s2 = rd->argintregs[nmd->params[j].regoff];
3295                                         M_INTMOVE(s1, s2);
3296                                 } else {
3297                                         s2 = nmd->params[j].regoff;
3298                                         M_LST(s1, REG_SP, s2 * 8);
3299                                 }
3300
3301                         } else {
3302                                 s1 = md->params[i].regoff + stackframesize;
3303                                 s2 = nmd->params[j].regoff;
3304
3305                                 M_LLD(REG_ITMP1, REG_SP, s1 * 8);
3306                                 M_LST(REG_ITMP1, REG_SP, s2 * 8);
3307                         }
3308
3309                 } else {
3310                         /* We only copy spilled float arguments, as the float
3311                            argument registers keep unchanged. */
3312
3313                         if (md->params[i].inmemory) {
3314                                 s1 = md->params[i].regoff + stackframesize;
3315                                 s2 = nmd->params[j].regoff;
3316
3317                                 if (IS_2_WORD_TYPE(t)) {
3318                                         M_DLD(REG_FTMP1, REG_SP, s1 * 8);
3319                                         M_DST(REG_FTMP1, REG_SP, s2 * 8);
3320
3321                                 } else {
3322                                         M_FLD(REG_FTMP1, REG_SP, s1 * 8);
3323                                         M_FST(REG_FTMP1, REG_SP, s2 * 8);
3324                                 }
3325                         }
3326                 }
3327         }
3328
3329         /* put class into second argument register */
3330
3331         if (m->flags & ACC_STATIC) {
3332                 disp = dseg_addaddress(cd, m->class);
3333                 M_ALD(rd->argintregs[1], REG_PV, disp);
3334         }
3335
3336         /* put env into first argument register */
3337
3338         disp = dseg_addaddress(cd, _Jv_env);
3339         M_ALD(rd->argintregs[0], REG_PV, disp);
3340
3341         /* generate the actual native call */
3342         /* native functions have a different TOC for sure */
3343
3344         M_AST(REG_TOC, REG_SP, 40);     /* save old TOC */
3345         M_ALD(REG_ITMP3, REG_PV, funcdisp);
3346         M_ALD(REG_TOC, REG_ITMP3, 8);   /* load TOC from func. descriptor */
3347         M_ALD(REG_ITMP3, REG_ITMP3, 0);
3348         M_MTCTR(REG_ITMP3);
3349         M_JSR;
3350         M_ALD(REG_TOC, REG_SP, 40);     /* restore TOC */
3351
3352         M_NOP;
3353         M_NOP;
3354         M_NOP;
3355
3356         /* save return value */
3357
3358         if (md->returntype.type != TYPE_VOID) {
3359                 if (IS_INT_LNG_TYPE(md->returntype.type)) {
3360                         M_LST(REG_RESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
3361                 }
3362                 else {
3363                         if (IS_2_WORD_TYPE(md->returntype.type))
3364                                 M_DST(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
3365                         else
3366                                 M_FST(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);  /* FIXME, needed ?*/
3367                 }
3368         }
3369
3370         /* print call trace */
3371 #if ! defined(NDEBGUU)
3372         if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
3373                 emit_verbosecall_exit(jd);
3374         }
3375 #endif
3376         /* remove native stackframe info */
3377
3378         M_NOP;
3379         M_NOP;
3380         M_NOP;
3381
3382         M_AADD_IMM(REG_SP, stackframesize * 8, rd->argintregs[0]);
3383         disp = dseg_addaddress(cd, codegen_finish_native_call);
3384         M_ALD(REG_ITMP1, REG_PV, disp);
3385         M_ALD(REG_ITMP1, REG_ITMP1, 0); /* XXX what about TOC? */
3386         M_MTCTR(REG_ITMP1);
3387         M_JSR;
3388         M_MOV(REG_RESULT, REG_ITMP1_XPTR);
3389
3390         /* restore return value */
3391
3392         if (md->returntype.type != TYPE_VOID) {
3393                 if (IS_INT_LNG_TYPE(md->returntype.type)) {
3394                         M_LLD(REG_RESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
3395                 }
3396                 else {
3397                         if (IS_2_WORD_TYPE(md->returntype.type))
3398                                 M_DLD(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
3399                         else
3400                                 M_FLD(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
3401                 }
3402         }
3403
3404         M_ALD(REG_ITMP2_XPC, REG_SP, stackframesize * 8 + LA_LR_OFFSET);
3405         M_MTLR(REG_ITMP2_XPC);
3406         M_LDA(REG_SP, REG_SP, stackframesize * 8); /* remove stackframe           */
3407
3408         /* check for exception */
3409
3410         M_TST(REG_ITMP1_XPTR);
3411         M_BNE(1);                           /* if no exception then return        */
3412
3413         M_RET;
3414
3415         /* handle exception */
3416
3417         M_LADD_IMM(REG_ITMP2_XPC, -4, REG_ITMP2_XPC);  /* exception address       */
3418
3419         disp = dseg_addaddress(cd, asm_handle_nat_exception);
3420         M_ALD(REG_ITMP3, REG_PV, disp);
3421         M_MTCTR(REG_ITMP3);
3422         M_RTS;
3423
3424         /* generate patcher stub call code */
3425
3426         {
3427                 patchref *pref;
3428                 u4        mcode;
3429                 u1       *savedmcodeptr;
3430                 u1       *tmpmcodeptr;
3431
3432                 for (pref = cd->patchrefs; pref != NULL; pref = pref->next) {
3433                         /* Get machine code which is patched back in later. The
3434                            call is 1 instruction word long. */
3435
3436                         tmpmcodeptr = cd->mcodebase + pref->branchpos;
3437
3438                         mcode = *((u4 *) tmpmcodeptr);
3439
3440                         /* Patch in the call to call the following code (done at
3441                            compile time). */
3442
3443                         savedmcodeptr = cd->mcodeptr;   /* save current mcodeptr          */
3444                         cd->mcodeptr  = tmpmcodeptr;    /* set mcodeptr to patch position */
3445
3446                         disp = ((u4 *) savedmcodeptr) - (((u4 *) tmpmcodeptr) + 1);
3447                         M_BL(disp);
3448
3449                         cd->mcodeptr = savedmcodeptr;   /* restore the current mcodeptr   */
3450
3451                         /* create stack frame - keep stack 16-byte aligned */
3452
3453                         M_AADD_IMM(REG_SP, -8 * 8, REG_SP);
3454
3455                         /* move return address onto stack */
3456
3457                         M_MFLR(REG_ZERO);
3458                         M_AST(REG_ZERO, REG_SP, 5 * 8);
3459
3460                         /* move pointer to java_objectheader onto stack */
3461
3462 #if defined(ENABLE_THREADS)
3463                         /* order reversed because of data segment layout */
3464
3465                         (void) dseg_addaddress(cd, NULL);                         /* flcword    */
3466                         (void) dseg_addaddress(cd, lock_get_initial_lock_word()); /* monitorPtr */
3467                         disp = dseg_addaddress(cd, NULL);                         /* vftbl      */
3468
3469                         M_LDA(REG_ITMP3, REG_PV, disp);
3470                         M_AST(REG_ITMP3, REG_SP, 4 * 8);
3471 #else
3472                         /* do nothing */
3473 #endif
3474
3475                         /* move machine code onto stack */
3476
3477                         disp = dseg_adds4(cd, mcode);
3478                         M_ILD(REG_ITMP3, REG_PV, disp);
3479                         M_IST(REG_ITMP3, REG_SP, 3 * 8);
3480
3481                         /* move class/method/field reference onto stack */
3482
3483                         disp = dseg_addaddress(cd, pref->ref);
3484                         M_ALD(REG_ITMP3, REG_PV, disp);
3485                         M_AST(REG_ITMP3, REG_SP, 2 * 8);
3486
3487                         /* move data segment displacement onto stack */
3488
3489                         disp = dseg_adds4(cd, pref->disp);
3490                         M_ILD(REG_ITMP3, REG_PV, disp);
3491                         M_IST(REG_ITMP3, REG_SP, 1 * 8);
3492
3493                         /* move patcher function pointer onto stack */
3494
3495                         disp = dseg_addaddress(cd, pref->patcher);
3496                         M_ALD(REG_ITMP3, REG_PV, disp);
3497                         M_AST(REG_ITMP3, REG_SP, 0 * 8);
3498
3499                         disp = dseg_addaddress(cd, asm_patcher_wrapper);
3500                         M_ALD(REG_ITMP3, REG_PV, disp);
3501                         M_MTCTR(REG_ITMP3);
3502                         M_RTS;
3503                 }
3504         }
3505
3506         codegen_finish(jd);
3507
3508         return code->entrypoint;
3509 }
3510
3511
3512
3513
3514 /*
3515  * These are local overrides for various environment variables in Emacs.
3516  * Please do not remove this and leave it at the end of the file, where
3517  * Emacs will automagically detect them.
3518  * ---------------------------------------------------------------------
3519  * Local variables:
3520  * mode: c
3521  * indent-tabs-mode: t
3522  * c-basic-offset: 4
3523  * tab-width: 4
3524  * End:
3525  * vim:noexpandtab:sw=4:ts=4:
3526  */