src/vm/jit/powerpc/codegen.c

   1 /* src/vm/jit/powerpc/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 5633 2006-10-02 13:59:13Z 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
  49 #include "vm/jit/powerpc/arch.h"
  50 #include "vm/jit/powerpc/codegen.h"
  51
  52 #include "mm/memory.h"
  53 #include "native/native.h"
  54
  55 #if defined(ENABLE_THREADS)
  56 # include "threads/native/lock.h"
  57 #endif
  58
  59 #include "vm/builtin.h"
  60 #include "vm/exceptions.h"
  61 #include "vm/global.h"
  62 #include "vm/loader.h"
  63 #include "vm/options.h"
  64 #include "vm/stringlocal.h"
  65 #include "vm/vm.h"
  66 #include "vm/jit/abi-asm.h"
  67 #include "vm/jit/asmpart.h"
  68 #include "vm/jit/codegen-common.h"
  69 #include "vm/jit/dseg.h"
  70 #include "vm/jit/emit-common.h"
  71 #include "vm/jit/jit.h"
  72 #include "vm/jit/methodheader.h"
  73 #include "vm/jit/parse.h"
  74 #include "vm/jit/patcher.h"
  75 #include "vm/jit/reg.h"
  76 #include "vm/jit/replace.h"
  77
  78 #if defined(ENABLE_LSRA)
  79 # include "vm/jit/allocator/lsra.h"
  80 #endif
  81
  82
  83 /* codegen *********************************************************************
  84
  85    Generates machine code.
  86
  87 *******************************************************************************/
  88
  89 bool codegen(jitdata *jd)
  90 {
  91         methodinfo         *m;
  92         codeinfo           *code;
  93         codegendata        *cd;
  94         registerdata       *rd;
  95         s4                  len, s1, s2, s3, d, disp;
  96         ptrint              a;
  97         s4                  fieldtype;
  98         varinfo            *var, *var1, *var2;
  99         basicblock         *bptr;
 100         instruction        *iptr;
 101         exceptiontable     *ex;
 102         u2                  currentline;
 103         methodinfo         *lm;             /* local methodinfo for ICMD_INVOKE*  */
 104         unresolved_method  *um;
 105         builtintable_entry *bte;
 106         methoddesc         *md;
 107         rplpoint           *replacementpoint;
 108         s4                 varindex;
 109
 110         /* get required compiler data */
 111
 112         m    = jd->m;
 113         code = jd->code;
 114         cd   = jd->cd;
 115         rd   = jd->rd;
 116
 117         /* prevent compiler warnings */
 118
 119         d = 0;
 120         lm = NULL;
 121         bte = NULL;
 122
 123         {
 124         s4 i, p, t, l;
 125         s4 savedregs_num;
 126
 127         savedregs_num = 0;
 128
 129         /* space to save used callee saved registers */
 130
 131         savedregs_num += (INT_SAV_CNT - rd->savintreguse);
 132         savedregs_num += (FLT_SAV_CNT - rd->savfltreguse) * 2;
 133
 134         cd->stackframesize = rd->memuse + savedregs_num;
 135
 136 #if defined(ENABLE_THREADS)
 137         /* Space to save argument of monitor_enter and Return Values to
 138            survive monitor_exit. The stack position for the argument can
 139            not be shared with place to save the return register on PPC,
 140            since both values reside in R3. */
 141
 142         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
 143                 /* reserve 2 slots for long/double return values for monitorexit */
 144
 145                 if (IS_2_WORD_TYPE(m->parseddesc->returntype.type))
 146                         cd->stackframesize += 3;
 147                 else
 148                         cd->stackframesize += 2;
 149         }
 150
 151 #endif
 152
 153         /* create method header */
 154
 155         /* align stack to 16-bytes */
 156
 157         if (!jd->isleafmethod || JITDATA_HAS_FLAG_VERBOSECALL(jd))
 158                 cd->stackframesize = (cd->stackframesize + 3) & ~3;
 159
 160         else if (jd->isleafmethod && (cd->stackframesize == LA_SIZE_IN_POINTERS))
 161                 cd->stackframesize = 0;
 162
 163         (void) dseg_add_unique_address(cd, code);              /* CodeinfoPointer */
 164         (void) dseg_add_unique_s4(cd, cd->stackframesize * 4); /* FrameSize       */
 165
 166 #if defined(ENABLE_THREADS)
 167         /* IsSync contains the offset relative to the stack pointer for the
 168            argument of monitor_exit used in the exception handler. Since the
 169            offset could be zero and give a wrong meaning of the flag it is
 170            offset by one.
 171         */
 172
 173         if (checksync && (m->flags & ACC_SYNCHRONIZED))
 174                 (void) dseg_add_unique_s4(cd, (rd->memuse + 1) * 4);/* IsSync         */
 175         else
 176 #endif
 177                 (void) dseg_add_unique_s4(cd, 0);                  /* IsSync          */
 178
 179         (void) dseg_add_unique_s4(cd, jd->isleafmethod);       /* IsLeaf          */
 180         (void) dseg_add_unique_s4(cd, INT_SAV_CNT - rd->savintreguse); /* IntSave */
 181         (void) dseg_add_unique_s4(cd, FLT_SAV_CNT - rd->savfltreguse); /* FltSave */
 182
 183         dseg_addlinenumbertablesize(cd);
 184
 185         (void) dseg_add_unique_s4(cd, cd->exceptiontablelength); /* ExTableSize   */
 186
 187         /* create exception table */
 188
 189         for (ex = cd->exceptiontable; ex != NULL; ex = ex->down) {
 190                 dseg_add_target(cd, ex->start);
 191                 dseg_add_target(cd, ex->end);
 192                 dseg_add_target(cd, ex->handler);
 193                 (void) dseg_add_unique_address(cd, ex->catchtype.any);
 194         }
 195
 196         /* generate method profiling code */
 197
 198         if (JITDATA_HAS_FLAG_INSTRUMENT(jd)) {
 199                 /* count frequency */
 200
 201                 M_ALD(REG_ITMP1, REG_PV, CodeinfoPointer);
 202                 M_ALD(REG_ITMP2, REG_ITMP1, OFFSET(codeinfo, frequency));
 203                 M_IADD_IMM(REG_ITMP2, 1, REG_ITMP2);
 204                 M_AST(REG_ITMP2, REG_ITMP1, OFFSET(codeinfo, frequency));
 205
 206 /*              PROFILE_CYCLE_START; */
 207         }
 208
 209         /* create stack frame (if necessary) */
 210
 211         if (!jd->isleafmethod) {
 212                 M_MFLR(REG_ZERO);
 213                 M_AST(REG_ZERO, REG_SP, LA_LR_OFFSET);
 214         }
 215
 216         if (cd->stackframesize)
 217                 M_STWU(REG_SP, REG_SP, -(cd->stackframesize * 4));
 218
 219         /* save return address and used callee saved registers */
 220
 221         p = cd->stackframesize;
 222         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
 223                 p--; M_IST(rd->savintregs[i], REG_SP, p * 4);
 224         }
 225         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
 226                 p -= 2; M_DST(rd->savfltregs[i], REG_SP, p * 4);
 227         }
 228
 229         /* take arguments out of register or stack frame */
 230
 231         md = m->parseddesc;
 232
 233         for (p = 0, l = 0; p < md->paramcount; p++) {
 234                 t = md->paramtypes[p].type;
 235                 varindex = jd->local_map[l * 5 + t];
 236
 237                 l++;
 238                 if (IS_2_WORD_TYPE(t))    /* increment local counter for 2 word types */
 239                         l++;
 240
 241                 if (varindex == UNUSED)
 242                         continue;
 243
 244                 var = VAR(varindex);
 245
 246                 s1 = md->params[p].regoff;
 247                 if (IS_INT_LNG_TYPE(t)) {                    /* integer args          */
 248                         if (IS_2_WORD_TYPE(t))
 249                                 s2 = PACK_REGS(rd->argintregs[GET_LOW_REG(s1)],
 250                                                            rd->argintregs[GET_HIGH_REG(s1)]);
 251                         else
 252                                 s2 = rd->argintregs[s1];
 253                         if (!md->params[p].inmemory) {           /* register arguments    */
 254                                 if (!IS_INMEMORY(var->flags)) {      /* reg arg -> register   */
 255                                         if (IS_2_WORD_TYPE(t))
 256                                                 M_LNGMOVE(s2, var->vv.regoff);
 257                                         else
 258                                                 M_INTMOVE(s2, var->vv.regoff);
 259
 260                                 } else {                             /* reg arg -> spilled    */
 261                                         if (IS_2_WORD_TYPE(t))
 262                                                 M_LST(s2, REG_SP, var->vv.regoff * 4);
 263                                         else
 264                                                 M_IST(s2, REG_SP, var->vv.regoff * 4);
 265                                 }
 266
 267                         } else {                                 /* stack arguments       */
 268                                 if (!IS_INMEMORY(var->flags)) {      /* stack arg -> register */
 269                                         if (IS_2_WORD_TYPE(t))
 270                                                 M_LLD(var->vv.regoff, REG_SP, (cd->stackframesize + s1) * 4);
 271                                         else
 272                                                 M_ILD(var->vv.regoff, REG_SP, (cd->stackframesize + s1) * 4);
 273
 274                                 } else {                             /* stack arg -> spilled  */
 275 #if 1
 276                                         M_ILD(REG_ITMP1, REG_SP, (cd->stackframesize + s1) * 4);
 277                                         M_IST(REG_ITMP1, REG_SP, var->vv.regoff * 4);
 278                                         if (IS_2_WORD_TYPE(t)) {
 279                                                 M_ILD(REG_ITMP1, REG_SP, (cd->stackframesize + s1) * 4 +4);
 280                                                 M_IST(REG_ITMP1, REG_SP, var->vv.regoff * 4 + 4);
 281                                         }
 282 #else
 283                                         /* Reuse Memory Position on Caller Stack */
 284                                         var->vv.regoff = cd->stackframesize + s1;
 285 #endif
 286                                 }
 287                         }
 288
 289                 } else {                                     /* floating args         */
 290                         if (!md->params[p].inmemory) {           /* register arguments    */
 291                                 s2 = rd->argfltregs[s1];
 292                                 if (!IS_INMEMORY(var->flags)) {      /* reg arg -> register   */
 293                                         M_FLTMOVE(s2, var->vv.regoff);
 294
 295                                 } else {                                         /* reg arg -> spilled    */
 296                                         if (IS_2_WORD_TYPE(t))
 297                                                 M_DST(s2, REG_SP, var->vv.regoff * 4);
 298                                         else
 299                                                 M_FST(s2, REG_SP, var->vv.regoff * 4);
 300                                 }
 301
 302                         } else {                                 /* stack arguments       */
 303                                 if (!IS_INMEMORY(var->flags)) {      /* stack-arg -> register */
 304                                         if (IS_2_WORD_TYPE(t))
 305                                                 M_DLD(var->vv.regoff, REG_SP, (cd->stackframesize + s1) * 4);
 306
 307                                         else
 308                                                 M_FLD(var->vv.regoff, REG_SP, (cd->stackframesize + s1) * 4);
 309
 310                                 } else {                             /* stack-arg -> spilled  */
 311 #if 1
 312                                         if (IS_2_WORD_TYPE(t)) {
 313                                                 M_DLD(REG_FTMP1, REG_SP, (cd->stackframesize + s1) * 4);
 314                                                 M_DST(REG_FTMP1, REG_SP, var->vv.regoff * 4);
 315                                                 var->vv.regoff = cd->stackframesize + s1;
 316
 317                                         } else {
 318                                                 M_FLD(REG_FTMP1, REG_SP, (cd->stackframesize + s1) * 4);
 319                                                 M_FST(REG_FTMP1, REG_SP, var->vv.regoff * 4);
 320                                         }
 321 #else
 322                                         /* Reuse Memory Position on Caller Stack */
 323                                         var->vv.regoff = cd->stackframesize + s1;
 324 #endif
 325                                 }
 326                         }
 327                 }
 328         } /* end for */
 329
 330 #if defined(ENABLE_THREADS)
 331         /* call monitorenter function */
 332
 333         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
 334                 /* stack offset for monitor argument */
 335
 336                 s1 = rd->memuse;
 337
 338 # if !defined(NDEBUG)
 339                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 340                         M_AADD_IMM(REG_SP, -((LA_SIZE_IN_POINTERS + ARG_CNT) * 8), REG_SP);
 341
 342                         for (p = 0; p < INT_ARG_CNT; p++)
 343                                 M_IST(rd->argintregs[p], REG_SP, LA_SIZE + p * 8);
 344
 345                         for (p = 0; p < FLT_ARG_CNT; p++)
 346                                 M_DST(rd->argfltregs[p], REG_SP, LA_SIZE + (INT_ARG_CNT + p) * 8);
 347
 348                         /* ATTENTION: We multiply here with 2, because we use * 8
 349                            above for simplicity and below * 4! */
 350
 351                         s1 += (LA_SIZE_IN_POINTERS + ARG_CNT) * 2;
 352                 }
 353 # endif
 354
 355                 p = dseg_add_functionptr(cd, LOCK_monitor_enter);
 356                 M_ALD(REG_ITMP3, REG_PV, p);
 357                 M_MTCTR(REG_ITMP3);
 358
 359                 /* get or test the lock object */
 360
 361                 if (m->flags & ACC_STATIC) {
 362                         p = dseg_add_address(cd, &m->class->object.header);
 363                         M_ALD(REG_A0, REG_PV, p);
 364                 }
 365                 else {
 366                         M_TST(REG_A0);
 367                         M_BEQ(0);
 368                         codegen_add_nullpointerexception_ref(cd);
 369                 }
 370
 371                 M_AST(REG_A0, REG_SP, s1 * 4);
 372                 M_JSR;
 373
 374 # if !defined(NDEBUG)
 375                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 376                         for (p = 0; p < INT_ARG_CNT; p++)
 377                                 M_ILD(rd->argintregs[p], REG_SP, LA_SIZE + p * 8);
 378
 379                         for (p = 0; p < FLT_ARG_CNT; p++)
 380                                 M_DLD(rd->argfltregs[p], REG_SP, LA_SIZE + (INT_ARG_CNT + p) * 8);
 381
 382                         M_AADD_IMM(REG_SP, (LA_SIZE_IN_POINTERS + ARG_CNT) * 8, REG_SP);
 383                 }
 384 # endif
 385         }
 386 #endif /* defined(ENABLE_THREADS) */
 387
 388         /* call trace function */
 389
 390         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
 391                 emit_verbosecall_enter(jd);
 392         }
 393
 394         /* end of header generation */
 395
 396         replacementpoint = code->rplpoints;
 397
 398         /* walk through all basic blocks */
 399
 400         for (bptr = jd->new_basicblocks; bptr != NULL; bptr = bptr->next) {
 401
 402                 bptr->mpc = (s4) (cd->mcodeptr - cd->mcodebase);
 403
 404                 if (bptr->flags >= BBREACHED) {
 405
 406                 /* branch resolving */
 407
 408                 {
 409                 branchref *brefs;
 410                 for (brefs = bptr->branchrefs; brefs != NULL; brefs = brefs->next) {
 411                         gen_resolvebranch((u1*) cd->mcodebase + brefs->branchpos,
 412                                           brefs->branchpos,
 413                                                           bptr->mpc);
 414                         }
 415                 }
 416
 417                 /* handle replacement points */
 418 #if 0
 419                 if (bptr->bitflags & BBFLAG_REPLACEMENT) {
 420                         replacementpoint->pc = (u1*)(ptrint)bptr->mpc; /* will be resolved later */
 421
 422                         replacementpoint++;
 423                 }
 424 #endif
 425                 /* generate basicblock profiling code */
 426
 427                 if (JITDATA_HAS_FLAG_INSTRUMENT(jd)) {
 428                         /* count frequency */
 429
 430                         disp = dseg_add_address(cd, code->bbfrequency);
 431                         M_ALD(REG_ITMP2, REG_PV, disp);
 432                         M_ALD(REG_ITMP3, REG_ITMP2, bptr->nr * 4);
 433                         M_IADD_IMM(REG_ITMP3, 1, REG_ITMP3);
 434                         M_AST(REG_ITMP3, REG_ITMP2, bptr->nr * 4);
 435
 436                         /* if this is an exception handler, start profiling again */
 437
 438 /*                      if (bptr->type == BBTYPE_EXH) */
 439 /*                              PROFILE_CYCLE_START; */
 440                 }
 441
 442                 /* copy interface registers to their destination */
 443
 444                 len = bptr->indepth;
 445                 MCODECHECK(64+len);
 446
 447 #if defined(ENABLE_LSRA)
 448                 if (opt_lsra) {
 449                         while (src != NULL) {
 450                                 len--;
 451                                 if ((len == 0) && (bptr->type != BBTYPE_STD)) {
 452                                         /* d = reg_of_var(m, src, REG_ITMP1); */
 453                                         if (!IS_INMEMORY(src->flags))
 454                                                 d = src->vv.regoff;
 455                                         else
 456                                                 d = REG_ITMP1;
 457                                         M_INTMOVE(REG_ITMP1, d);
 458                                         emit_store(jd, NULL, src, d);
 459                                 }
 460                                 src = src->prev;
 461                         }
 462                 } else {
 463 #endif
 464                 while (len > 0) {
 465                         len--;
 466                         var = VAR(bptr->invars[len]);
 467                         if ((len == bptr->indepth-1) && (bptr->type != BBTYPE_STD)) {
 468                                 d = codegen_reg_of_var(0, var, REG_ITMP1);
 469                                 M_INTMOVE(REG_ITMP1, d);
 470                                 emit_store(jd, NULL, var, d);
 471                         }
 472                         else {
 473                                 assert((var->flags & INOUT));
 474                         }
 475                 }
 476
 477 #if defined(ENABLE_LSRA)
 478                 }
 479 #endif
 480                 /* walk through all instructions */
 481
 482                 len = bptr->icount;
 483                 currentline = 0;
 484
 485                 for (iptr = bptr->iinstr; len > 0; len--, iptr++) {
 486                         if (iptr->line != currentline) {
 487                                 dseg_addlinenumber(cd, iptr->line);
 488                                 currentline = iptr->line;
 489                         }
 490
 491                         MCODECHECK(64);   /* an instruction usually needs < 64 words      */
 492
 493                         switch (iptr->opc) {
 494                         case ICMD_NOP:    /* ...  ==> ...                                 */
 495                         case ICMD_INLINE_START:
 496                         case ICMD_INLINE_END:
 497                                 break;
 498
 499                 case ICMD_CHECKNULL:  /* ..., objectref  ==> ..., objectref           */
 500
 501                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 502                         M_TST(s1);
 503                         M_BEQ(0);
 504                         codegen_add_nullpointerexception_ref(cd);
 505                         break;
 506
 507                 /* constant operations ************************************************/
 508
 509                 case ICMD_ICONST:     /* ...  ==> ..., constant                       */
 510
 511                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 512                         ICONST(d, iptr->sx.val.i);
 513                         emit_store_dst(jd, iptr, d);
 514                         break;
 515
 516                 case ICMD_LCONST:     /* ...  ==> ..., constant                       */
 517
 518                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 519                         LCONST(d, iptr->sx.val.l);
 520                         emit_store_dst(jd, iptr, d);
 521                         break;
 522
 523                 case ICMD_FCONST:     /* ...  ==> ..., constant                       */
 524
 525                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 526                         a = dseg_add_float(cd, iptr->sx.val.f);
 527                         M_FLD(d, REG_PV, a);
 528                         emit_store_dst(jd, iptr, d);
 529                         break;
 530
 531                 case ICMD_DCONST:     /* ...  ==> ..., constant                       */
 532
 533                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 534                         a = dseg_add_double(cd, iptr->sx.val.d);
 535                         M_DLD(d, REG_PV, a);
 536                         emit_store_dst(jd, iptr, d);
 537                         break;
 538
 539                 case ICMD_ACONST:     /* ...  ==> ..., constant                       */
 540
 541                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 542
 543                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
 544                                 constant_classref *cr = iptr->sx.val.c.ref;;
 545
 546                                 disp = dseg_add_unique_address(cd, cr);
 547
 548                                 codegen_addpatchref(cd, PATCHER_resolve_classref_to_classinfo,
 549                                                                         cr, disp);
 550
 551                                 if (opt_showdisassemble)
 552                                         M_NOP;
 553                         }
 554                         else
 555                                 disp = dseg_add_address(cd, iptr->sx.val.anyptr);
 556
 557                         M_ALD(d, REG_PV, disp);
 558                         emit_store_dst(jd, iptr, d);
 559                         break;
 560
 561
 562                 /* load/store/copy/move operations ************************************/
 563
 564                 case ICMD_ILOAD:      /* ...  ==> ..., content of local variable      */
 565                 case ICMD_ALOAD:      /* s1 = local variable                          */
 566                 case ICMD_LLOAD:
 567                 case ICMD_FLOAD:
 568                 case ICMD_DLOAD:
 569                 case ICMD_ISTORE:     /* ..., value  ==> ...                          */
 570                 case ICMD_ASTORE:     /* dst = local variable                         */
 571                 case ICMD_LSTORE:
 572                 case ICMD_FSTORE:
 573                 case ICMD_DSTORE:
 574                 case ICMD_COPY:
 575                 case ICMD_MOVE:
 576
 577                         emit_copy(jd, iptr, VAROP(iptr->s1), VAROP(iptr->dst));
 578                         break;
 579
 580
 581                 /* pop operations *****************************************************/
 582
 583                 /* attention: double and longs are only one entry in CACAO ICMDs      */
 584
 585                 case ICMD_POP:        /* ..., value  ==> ...                          */
 586                 case ICMD_POP2:       /* ..., value, value  ==> ...                   */
 587
 588                         break;
 589
 590
 591                 /* integer operations *************************************************/
 592
 593                 case ICMD_INEG:       /* ..., value  ==> ..., - value                 */
 594
 595                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 596                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 597                         M_NEG(s1, d);
 598                         emit_store_dst(jd, iptr, d);
 599                         break;
 600
 601                 case ICMD_LNEG:       /* ..., value  ==> ..., - value                 */
 602
 603                         s1 = emit_load_s1(jd, iptr, REG_ITMP12_PACKED);
 604                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 605                         M_SUBFIC(GET_LOW_REG(s1), 0, GET_LOW_REG(d));
 606                         M_SUBFZE(GET_HIGH_REG(s1), GET_HIGH_REG(d));
 607                         emit_store_dst(jd, iptr, d);
 608                         break;
 609
 610                 case ICMD_I2L:        /* ..., value  ==> ..., value                   */
 611
 612                         s1 = emit_load_s1(jd, iptr, REG_ITMP2);
 613                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 614                         M_INTMOVE(s1, GET_LOW_REG(d));
 615                         M_SRA_IMM(GET_LOW_REG(d), 31, GET_HIGH_REG(d));
 616                         emit_store_dst(jd, iptr, d);
 617                         break;
 618
 619                 case ICMD_L2I:        /* ..., value  ==> ..., value                   */
 620
 621                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP2);
 622                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 623                         M_INTMOVE(s1, d);
 624                         emit_store_dst(jd, iptr, d);
 625                         break;
 626
 627                 case ICMD_INT2BYTE:   /* ..., value  ==> ..., value                   */
 628
 629                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 630                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 631                         M_BSEXT(s1, d);
 632                         emit_store_dst(jd, iptr, d);
 633                         break;
 634
 635                 case ICMD_INT2CHAR:   /* ..., value  ==> ..., value                   */
 636
 637                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 638                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 639                         M_CZEXT(s1, d);
 640                         emit_store_dst(jd, iptr, d);
 641                         break;
 642
 643                 case ICMD_INT2SHORT:  /* ..., value  ==> ..., value                   */
 644
 645                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 646                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 647                         M_SSEXT(s1, d);
 648                         emit_store_dst(jd, iptr, d);
 649                         break;
 650
 651
 652                 case ICMD_IADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 653
 654                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 655                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 656                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 657                         M_IADD(s1, s2, d);
 658                         emit_store_dst(jd, iptr, d);
 659                         break;
 660
 661                 case ICMD_IADDCONST:  /* ..., value  ==> ..., value + constant        */
 662                                       /* sx.val.i = constant                          */
 663
 664                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 665                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 666                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767)) {
 667                                 M_IADD_IMM(s1, iptr->sx.val.i, d);
 668                         } else {
 669                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 670                                 M_IADD(s1, REG_ITMP2, d);
 671                         }
 672                         emit_store_dst(jd, iptr, d);
 673                         break;
 674
 675                 case ICMD_LADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 676
 677                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 678                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
 679                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 680                         M_ADDC(s1, s2, GET_LOW_REG(d));
 681                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
 682                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP3);/* don't use REG_ITMP2*/
 683                         M_ADDE(s1, s2, GET_HIGH_REG(d));
 684                         emit_store_dst(jd, iptr, d);
 685                         break;
 686
 687                 case ICMD_LADDCONST:  /* ..., value  ==> ..., value + constant        */
 688                                       /* sx.val.l = constant                          */
 689
 690                         s3 = iptr->sx.val.l & 0xffffffff;
 691                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 692                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 693                         if ((s3 >= -32768) && (s3 <= 32767))
 694                                 M_ADDIC(s1, s3, GET_LOW_REG(d));
 695                         else {
 696                                 ICONST(REG_ITMP2, s3);
 697                                 M_ADDC(s1, REG_ITMP2, GET_LOW_REG(d));
 698                         }
 699                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
 700                         s3 = iptr->sx.val.l >> 32;
 701                         if (s3 == -1)
 702                                 M_ADDME(s1, GET_HIGH_REG(d));
 703                         else if (s3 == 0)
 704                                 M_ADDZE(s1, GET_HIGH_REG(d));
 705                         else {
 706                                 ICONST(REG_ITMP3, s3);                 /* don't use REG_ITMP2 */
 707                                 M_ADDE(s1, REG_ITMP3, GET_HIGH_REG(d));
 708                         }
 709                         emit_store_dst(jd, iptr, d);
 710                         break;
 711
 712                 case ICMD_ISUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 713
 714                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 715                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 716                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 717                         M_ISUB(s1, s2, d);
 718                         emit_store_dst(jd, iptr, d);
 719                         break;
 720
 721                 case ICMD_ISUBCONST:  /* ..., value  ==> ..., value + constant        */
 722                                       /* sx.val.i = constant                          */
 723
 724                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 725                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 726                         if ((iptr->sx.val.i >= -32767) && (iptr->sx.val.i <= 32768))
 727                                 M_IADD_IMM(s1, -iptr->sx.val.i, d);
 728                         else {
 729                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 730                                 M_ISUB(s1, REG_ITMP2, d);
 731                         }
 732                         emit_store_dst(jd, iptr, d);
 733                         break;
 734
 735                 case ICMD_LSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 736
 737                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 738                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
 739                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 740                         M_SUBC(s1, s2, GET_LOW_REG(d));
 741                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
 742                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP3);/* don't use REG_ITMP2*/
 743                         M_SUBE(s1, s2, GET_HIGH_REG(d));
 744                         emit_store_dst(jd, iptr, d);
 745                         break;
 746
 747                 case ICMD_LSUBCONST:  /* ..., value  ==> ..., value - constant        */
 748                                       /* sx.val.l = constant                          */
 749
 750                         s3 = (-iptr->sx.val.l) & 0xffffffff;
 751                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 752                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 753                         if ((s3 >= -32768) && (s3 <= 32767)) {
 754                                 M_ADDIC(s1, s3, GET_LOW_REG(d));
 755                         } else {
 756                                 ICONST(REG_ITMP2, s3);
 757                                 M_ADDC(s1, REG_ITMP2, GET_LOW_REG(d));
 758                         }
 759                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
 760                         s3 = (-iptr->sx.val.l) >> 32;
 761                         if (s3 == -1)
 762                                 M_ADDME(s1, GET_HIGH_REG(d));
 763                         else if (s3 == 0)
 764                                 M_ADDZE(s1, GET_HIGH_REG(d));
 765                         else {
 766                                 ICONST(REG_ITMP3, s3);                 /* don't use REG_ITMP2 */
 767                                 M_ADDE(s1, REG_ITMP3, GET_HIGH_REG(d));
 768                         }
 769                         emit_store_dst(jd, iptr, d);
 770                         break;
 771
 772                 case ICMD_IDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 773
 774                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 775                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 776                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 777                         M_TST(s2);
 778                         M_BEQ(0);
 779                         codegen_add_arithmeticexception_ref(cd);
 780                         M_LDAH(REG_ITMP3, REG_ZERO, 0x8000);
 781                         M_CMP(REG_ITMP3, s1);
 782                         M_BNE(3 + (s1 != d));
 783                         M_CMPI(s2, -1);
 784                         M_BNE(1 + (s1 != d));
 785                         M_INTMOVE(s1, d);
 786                         M_BR(1);
 787                         M_IDIV(s1, s2, d);
 788                         emit_store_dst(jd, iptr, d);
 789                         break;
 790
 791                 case ICMD_IREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 792
 793                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 794                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 795                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 796                         M_TST(s2);
 797                         M_BEQ(0);
 798                         codegen_add_arithmeticexception_ref(cd);
 799                         M_LDAH(REG_ITMP3, REG_ZERO, 0x8000);
 800                         M_CMP(REG_ITMP3, s1);
 801                         M_BNE(4);
 802                         M_CMPI(s2, -1);
 803                         M_BNE(2);
 804                         M_CLR(d);
 805                         M_BR(3);
 806                         M_IDIV(s1, s2, REG_ITMP3);
 807                         M_IMUL(REG_ITMP3, s2, REG_ITMP3);
 808                         M_ISUB(s1, REG_ITMP3, d);
 809                         emit_store_dst(jd, iptr, d);
 810                         break;
 811
 812                 case ICMD_LDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 813                 case ICMD_LREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 814
 815                         bte = iptr->sx.s23.s3.bte;
 816                         md  = bte->md;
 817
 818                         s2 = emit_load_s2(jd, iptr, REG_ITMP12_PACKED);
 819                         M_OR_TST(GET_HIGH_REG(s2), GET_LOW_REG(s2), REG_ITMP3);
 820                         M_BEQ(0);
 821                         codegen_add_arithmeticexception_ref(cd);
 822
 823                         disp = dseg_add_functionptr(cd, bte->fp);
 824                         M_ALD(REG_ITMP3, REG_PV, disp);
 825                         M_MTCTR(REG_ITMP3);
 826
 827                         s3 = PACK_REGS(rd->argintregs[GET_LOW_REG(md->params[1].regoff)],
 828                                                    rd->argintregs[GET_HIGH_REG(md->params[1].regoff)]);
 829                         M_LNGMOVE(s2, s3);
 830
 831                         s1 = emit_load_s1(jd, iptr, REG_ITMP12_PACKED);
 832                         s3 = PACK_REGS(rd->argintregs[GET_LOW_REG(md->params[0].regoff)],
 833                                                    rd->argintregs[GET_HIGH_REG(md->params[0].regoff)]);
 834                         M_LNGMOVE(s1, s3);
 835
 836                         M_JSR;
 837
 838                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
 839                         M_LNGMOVE(REG_RESULT_PACKED, d);
 840                         emit_store_dst(jd, iptr, d);
 841                         break;
 842
 843                 case ICMD_IMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 844
 845                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 846                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 847                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 848                         M_IMUL(s1, s2, d);
 849                         emit_store_dst(jd, iptr, d);
 850                         break;
 851
 852                 case ICMD_IMULCONST:  /* ..., value  ==> ..., value * constant        */
 853                                       /* sx.val.i = constant                          */
 854
 855                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 856                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 857                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767))
 858                                 M_IMUL_IMM(s1, iptr->sx.val.i, d);
 859                         else {
 860                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 861                                 M_IMUL(s1, REG_ITMP3, d);
 862                         }
 863                         emit_store_dst(jd, iptr, d);
 864                         break;
 865
 866                 case ICMD_IDIVPOW2:   /* ..., value  ==> ..., value << constant       */
 867
 868                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 869                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 870                         M_SRA_IMM(s1, iptr->sx.val.i, d);
 871                         M_ADDZE(d, d);
 872                         emit_store_dst(jd, iptr, d);
 873                         break;
 874
 875                 case ICMD_ISHL:       /* ..., val1, val2  ==> ..., val1 << val2       */
 876
 877                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 878                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 879                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 880                         M_AND_IMM(s2, 0x1f, REG_ITMP3);
 881                         M_SLL(s1, REG_ITMP3, d);
 882                         emit_store_dst(jd, iptr, d);
 883                         break;
 884
 885                 case ICMD_ISHLCONST:  /* ..., value  ==> ..., value << constant       */
 886                                       /* sx.val.i = constant                          */
 887
 888                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 889                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 890                         M_SLL_IMM(s1, iptr->sx.val.i & 0x1f, d);
 891                         emit_store_dst(jd, iptr, d);
 892                         break;
 893
 894                 case ICMD_ISHR:       /* ..., val1, val2  ==> ..., val1 >> val2       */
 895
 896                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 897                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 898                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 899                         M_AND_IMM(s2, 0x1f, REG_ITMP3);
 900                         M_SRA(s1, REG_ITMP3, d);
 901                         emit_store_dst(jd, iptr, d);
 902                         break;
 903
 904                 case ICMD_ISHRCONST:  /* ..., 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                         M_SRA_IMM(s1, iptr->sx.val.i & 0x1f, d);
 910                         emit_store_dst(jd, iptr, d);
 911                         break;
 912
 913                 case ICMD_IUSHR:      /* ..., val1, val2  ==> ..., val1 >>> val2      */
 914
 915                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 916                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 917                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 918                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 919                         M_SRL(s1, REG_ITMP2, d);
 920                         emit_store_dst(jd, iptr, d);
 921                         break;
 922
 923                 case ICMD_IUSHRCONST: /* ..., value  ==> ..., value >>> constant      */
 924                                       /* sx.val.i = constant                          */
 925
 926                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 927                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 928                         if (iptr->sx.val.i & 0x1f)
 929                                 M_SRL_IMM(s1, iptr->sx.val.i & 0x1f, d);
 930                         else {
 931                                 M_INTMOVE(s1, d);
 932                         }
 933                         emit_store_dst(jd, iptr, d);
 934                         break;
 935
 936                 case ICMD_IAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 937
 938                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 939                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 940                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 941                         M_AND(s1, s2, d);
 942                         emit_store_dst(jd, iptr, d);
 943                         break;
 944
 945                 case ICMD_IANDCONST:  /* ..., value  ==> ..., value & constant        */
 946                                       /* sx.val.i = constant                          */
 947
 948                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 949                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 950                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
 951                                 M_AND_IMM(s1, iptr->sx.val.i, d);
 952                         /*
 953                         else if (iptr->sx.val.i == 0xffffff) {
 954                                 M_RLWINM(s1, 0, 8, 31, d);
 955                                 }
 956                         */
 957                         else {
 958                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 959                                 M_AND(s1, REG_ITMP3, d);
 960                         }
 961                         emit_store_dst(jd, iptr, d);
 962                         break;
 963
 964                 case ICMD_LAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 965
 966                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 967                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
 968                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 969                         M_AND(s1, s2, GET_LOW_REG(d));
 970                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
 971                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP3);/* don't use REG_ITMP2*/
 972                         M_AND(s1, s2, GET_HIGH_REG(d));
 973                         emit_store_dst(jd, iptr, d);
 974                         break;
 975
 976                 case ICMD_LANDCONST:  /* ..., value  ==> ..., value & constant        */
 977                                       /* sx.val.l = constant                          */
 978
 979                         s3 = iptr->sx.val.l & 0xffffffff;
 980                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 981                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 982                         if ((s3 >= 0) && (s3 <= 65535))
 983                                 M_AND_IMM(s1, s3, GET_LOW_REG(d));
 984                         else {
 985                                 ICONST(REG_ITMP3, s3);
 986                                 M_AND(s1, REG_ITMP3, GET_LOW_REG(d));
 987                         }
 988                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
 989                         s3 = iptr->sx.val.l >> 32;
 990                         if ((s3 >= 0) && (s3 <= 65535))
 991                                 M_AND_IMM(s1, s3, GET_HIGH_REG(d));
 992                         else {
 993                                 ICONST(REG_ITMP3, s3);                 /* don't use REG_ITMP2 */
 994                                 M_AND(s1, REG_ITMP3, GET_HIGH_REG(d));
 995                         }
 996                         emit_store_dst(jd, iptr, d);
 997                         break;
 998
 999                 case ICMD_IREMPOW2:   /* ..., value  ==> ..., value % constant        */
1000                                       /* sx.val.i = constant                          */
1001
1002                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1003                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1004                         M_MOV(s1, REG_ITMP2);
1005                         M_CMPI(s1, 0);
1006                         M_BGE(1 + 2*(iptr->sx.val.i >= 32768));
1007                         if (iptr->sx.val.i >= 32768) {
1008                                 M_ADDIS(REG_ZERO, iptr->sx.val.i >> 16, REG_ITMP2);
1009                                 M_OR_IMM(REG_ITMP2, iptr->sx.val.i, REG_ITMP2);
1010                                 M_IADD(s1, REG_ITMP2, REG_ITMP2);
1011                         }
1012                         else {
1013                                 M_IADD_IMM(s1, iptr->sx.val.i, REG_ITMP2);
1014                         }
1015                         {
1016                                 int b=0, m = iptr->sx.val.i;
1017                                 while (m >>= 1)
1018                                         ++b;
1019                                 M_RLWINM(REG_ITMP2, 0, 0, 30-b, REG_ITMP2);
1020                         }
1021                         M_ISUB(s1, REG_ITMP2, d);
1022                         emit_store_dst(jd, iptr, d);
1023                         break;
1024
1025                 case ICMD_IOR:        /* ..., val1, val2  ==> ..., val1 | val2        */
1026
1027                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1028                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1029                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1030                         M_OR(s1, s2, d);
1031                         emit_store_dst(jd, iptr, d);
1032                         break;
1033
1034                 case ICMD_IORCONST:   /* ..., value  ==> ..., value | constant        */
1035                                       /* sx.val.i = constant                          */
1036
1037                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1038                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1039                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
1040                                 M_OR_IMM(s1, iptr->sx.val.i, d);
1041                         else {
1042                                 ICONST(REG_ITMP3, iptr->sx.val.i);
1043                                 M_OR(s1, REG_ITMP3, d);
1044                         }
1045                         emit_store_dst(jd, iptr, d);
1046                         break;
1047
1048                 case ICMD_LOR:       /* ..., val1, val2  ==> ..., val1 | val2        */
1049
1050                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1051                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1052                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1053                         M_OR(s1, s2, GET_LOW_REG(d));
1054                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1055                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP3);/* don't use REG_ITMP2*/
1056                         M_OR(s1, s2, GET_HIGH_REG(d));
1057                         emit_store_dst(jd, iptr, d);
1058                         break;
1059
1060                 case ICMD_LORCONST:   /* ..., value  ==> ..., value | constant        */
1061                                       /* sx.val.l = constant                          */
1062
1063                         s3 = iptr->sx.val.l & 0xffffffff;
1064                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1065                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1066                         if ((s3 >= 0) && (s3 <= 65535))
1067                                 M_OR_IMM(s1, s3, GET_LOW_REG(d));
1068                         else {
1069                                 ICONST(REG_ITMP3, s3);
1070                                 M_OR(s1, REG_ITMP3, GET_LOW_REG(d));
1071                         }
1072                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1073                         s3 = iptr->sx.val.l >> 32;
1074                         if ((s3 >= 0) && (s3 <= 65535))
1075                                 M_OR_IMM(s1, s3, GET_HIGH_REG(d));
1076                         else {
1077                                 ICONST(REG_ITMP3, s3);                 /* don't use REG_ITMP2 */
1078                                 M_OR(s1, REG_ITMP3, GET_HIGH_REG(d));
1079                         }
1080                         emit_store_dst(jd, iptr, d);
1081                         break;
1082
1083                 case ICMD_IXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
1084
1085                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1086                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1087                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1088                         M_XOR(s1, s2, d);
1089                         emit_store_dst(jd, iptr, d);
1090                         break;
1091
1092                 case ICMD_IXORCONST:  /* ..., value  ==> ..., value ^ constant        */
1093                                       /* sx.val.i = constant                          */
1094
1095                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1096                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1097                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
1098                                 M_XOR_IMM(s1, iptr->sx.val.i, d);
1099                         else {
1100                                 ICONST(REG_ITMP3, iptr->sx.val.i);
1101                                 M_XOR(s1, REG_ITMP3, d);
1102                         }
1103                         emit_store_dst(jd, iptr, d);
1104                         break;
1105
1106                 case ICMD_LXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
1107
1108                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1109                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1110                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1111                         M_XOR(s1, s2, GET_LOW_REG(d));
1112                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1113                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP3);/* don't use REG_ITMP2*/
1114                         M_XOR(s1, s2, GET_HIGH_REG(d));
1115                         emit_store_dst(jd, iptr, d);
1116                         break;
1117
1118                 case ICMD_LXORCONST:  /* ..., value  ==> ..., value ^ constant        */
1119                                       /* sx.val.l = constant                          */
1120
1121                         s3 = iptr->sx.val.l & 0xffffffff;
1122                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1123                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1124                         if ((s3 >= 0) && (s3 <= 65535))
1125                                 M_XOR_IMM(s1, s3, GET_LOW_REG(d));
1126                         else {
1127                                 ICONST(REG_ITMP3, s3);
1128                                 M_XOR(s1, REG_ITMP3, GET_LOW_REG(d));
1129                         }
1130                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1131                         s3 = iptr->sx.val.l >> 32;
1132                         if ((s3 >= 0) && (s3 <= 65535))
1133                                 M_XOR_IMM(s1, s3, GET_HIGH_REG(d));
1134                         else {
1135                                 ICONST(REG_ITMP3, s3);                 /* don't use REG_ITMP2 */
1136                                 M_XOR(s1, REG_ITMP3, GET_HIGH_REG(d));
1137                         }
1138                         emit_store_dst(jd, iptr, d);
1139                         break;
1140
1141                 case ICMD_LCMP:       /* ..., val1, val2  ==> ..., val1 cmp val2      */
1142                         /*******************************************************************
1143                 TODO: CHANGE THIS TO A VERSION THAT WORKS !!!
1144                         *******************************************************************/
1145                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
1146                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1147                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1148                         {
1149                                 int tempreg = false;
1150                                 int dreg;
1151                                 u1  *br1;
1152
1153                                 var1 = VAROP(iptr->s1);
1154                                 var2 = VAROP(iptr->sx.s23.s2);
1155
1156                                 if (IS_INMEMORY(var1->flags)) {
1157                                         tempreg = tempreg || (d == REG_ITMP3) || (d == REG_ITMP2);
1158                                 } else {
1159                                         tempreg = tempreg || (d == GET_HIGH_REG(var1->vv.regoff))
1160                                                         || (d == GET_LOW_REG(var1->vv.regoff));
1161                                 }
1162                                 if (IS_INMEMORY(var2->flags)) {
1163                                         tempreg = tempreg || (d == REG_ITMP3) || (d == REG_ITMP2);
1164                                 } else {
1165                                         tempreg = tempreg || (d == GET_HIGH_REG(var2->vv.regoff))
1166                                  || (d == GET_LOW_REG(var2->vv.regoff));
1167                                 }
1168
1169                                 dreg = tempreg ? REG_ITMP1 : d;
1170                                 M_IADD_IMM(REG_ZERO, 1, dreg);
1171                                 M_CMP(s1, s2);
1172                                 M_BGT(0);
1173                                 br1 = cd->mcodeptr;
1174                                 M_BLT(0);
1175                                 s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
1176                                 s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1177                                 M_CMPU(s1, s2);
1178                                 M_BGT(3);
1179                                 M_BEQ(1);
1180                                 M_IADD_IMM(dreg, -1, dreg);
1181                                 M_IADD_IMM(dreg, -1, dreg);
1182                                 gen_resolvebranch(br1, br1, cd->mcodeptr);
1183                                 gen_resolvebranch(br1 + 1 * 4, br1 + 1 * 4, cd->mcodeptr - 2 * 4);
1184                                 M_INTMOVE(dreg, d);
1185                         }
1186                         emit_store_dst(jd, iptr, d);
1187                         break;
1188
1189                 case ICMD_IINC:       /* ..., value  ==> ..., value + constant        */
1190                                       /* s1.localindex = variable, sx.val.i = constant*/
1191
1192                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1193                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1194
1195                         {
1196                                 u4 m = iptr->sx.val.i;
1197                                 if (m & 0x8000)
1198                                         m += 65536;
1199                                 if (m & 0xffff0000)
1200                                         M_ADDIS(s1, m >> 16, d);
1201                                 if (m & 0xffff)
1202                                         M_IADD_IMM(s1, m & 0xffff, d);
1203                         }
1204                         emit_store_dst(jd, iptr, d);
1205                         break;
1206
1207
1208                 /* floating operations ************************************************/
1209
1210                 case ICMD_FNEG:       /* ..., value  ==> ..., - value                 */
1211
1212                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1213                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1214                         M_FMOVN(s1, d);
1215                         emit_store_dst(jd, iptr, d);
1216                         break;
1217
1218                 case ICMD_DNEG:       /* ..., value  ==> ..., - value                 */
1219
1220                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1221                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1222                         M_FMOVN(s1, d);
1223                         emit_store_dst(jd, iptr, d);
1224                         break;
1225
1226                 case ICMD_FADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
1227
1228                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1229                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1230                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1231                         M_FADD(s1, s2, d);
1232                         emit_store_dst(jd, iptr, d);
1233                         break;
1234
1235                 case ICMD_DADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
1236
1237                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1238                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1239                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1240                         M_DADD(s1, s2, d);
1241                         emit_store_dst(jd, iptr, d);
1242                         break;
1243
1244                 case ICMD_FSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
1245
1246                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1247                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1248                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1249                         M_FSUB(s1, s2, d);
1250                         emit_store_dst(jd, iptr, d);
1251                         break;
1252
1253                 case ICMD_DSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
1254
1255                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1256                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1257                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1258                         M_DSUB(s1, s2, d);
1259                         emit_store_dst(jd, iptr, d);
1260                         break;
1261
1262                 case ICMD_FMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1263
1264                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1265                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1266                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1267                         M_FMUL(s1, s2, d);
1268                         emit_store_dst(jd, iptr, d);
1269                         break;
1270
1271                 case ICMD_DMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1272
1273                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1274                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1275                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1276                         M_DMUL(s1, s2, d);
1277                         emit_store_dst(jd, iptr, d);
1278                         break;
1279
1280                 case ICMD_FDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1281
1282                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1283                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1284                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1285                         M_FDIV(s1, s2, d);
1286                         emit_store_dst(jd, iptr, d);
1287                         break;
1288
1289                 case ICMD_DDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1290
1291                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1292                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1293                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1294                         M_DDIV(s1, s2, d);
1295                         emit_store_dst(jd, iptr, d);
1296                         break;
1297
1298                 case ICMD_F2I:       /* ..., value  ==> ..., (int) value              */
1299                 case ICMD_D2I:
1300
1301                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1302                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1303                         M_CLR(d);
1304                         disp = dseg_add_float(cd, 0.0);
1305                         M_FLD(REG_FTMP2, REG_PV, disp);
1306                         M_FCMPU(s1, REG_FTMP2);
1307                         M_BNAN(4);
1308                         disp = dseg_add_unique_s4(cd, 0);
1309                         M_CVTDL_C(s1, REG_FTMP1);
1310                         M_LDA(REG_ITMP1, REG_PV, disp);
1311                         M_STFIWX(REG_FTMP1, 0, REG_ITMP1);
1312                         M_ILD(d, REG_PV, disp);
1313                         emit_store_dst(jd, iptr, d);
1314                         break;
1315
1316                 case ICMD_F2D:       /* ..., value  ==> ..., (double) value           */
1317
1318                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1319                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1320                         M_FLTMOVE(s1, d);
1321                         emit_store_dst(jd, iptr, d);
1322                         break;
1323
1324                 case ICMD_D2F:       /* ..., value  ==> ..., (double) value           */
1325
1326                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1327                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1328                         M_CVTDF(s1, d);
1329                         emit_store_dst(jd, iptr, d);
1330                         break;
1331
1332                 case ICMD_FCMPL:      /* ..., val1, val2  ==> ..., val1 fcmpg val2    */
1333                 case ICMD_DCMPL:      /* == => 0, < => 1, > => -1                     */
1334
1335
1336                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1337                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1338                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1339                         M_FCMPU(s2, s1);
1340                         M_IADD_IMM(REG_ZERO, -1, d);
1341                         M_BNAN(4);
1342                         M_BGT(3);
1343                         M_IADD_IMM(REG_ZERO, 0, d);
1344                         M_BGE(1);
1345                         M_IADD_IMM(REG_ZERO, 1, d);
1346                         emit_store_dst(jd, iptr, d);
1347                         break;
1348
1349                 case ICMD_FCMPG:      /* ..., val1, val2  ==> ..., val1 fcmpl val2    */
1350                 case ICMD_DCMPG:      /* == => 0, < => 1, > => -1                     */
1351
1352                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1353                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1354                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1355                         M_FCMPU(s1, s2);
1356                         M_IADD_IMM(REG_ZERO, 1, d);
1357                         M_BNAN(4);
1358                         M_BGT(3);
1359                         M_IADD_IMM(REG_ZERO, 0, d);
1360                         M_BGE(1);
1361                         M_IADD_IMM(REG_ZERO, -1, d);
1362                         emit_store_dst(jd, iptr, d);
1363                         break;
1364
1365                 case ICMD_IF_FCMPEQ:    /* ..., value, value ==> ...                  */
1366                 case ICMD_IF_DCMPEQ:
1367
1368                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1369                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1370                         M_FCMPU(s1, s2);
1371                         M_BNAN(1);
1372                         M_BEQ(0);
1373                         codegen_addreference(cd, iptr->dst.block);
1374                         break;
1375
1376                 case ICMD_IF_FCMPNE:    /* ..., value, value ==> ...                  */
1377                 case ICMD_IF_DCMPNE:
1378
1379                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1380                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1381                         M_FCMPU(s1, s2);
1382                         M_BNAN(0);
1383                         codegen_addreference(cd, iptr->dst.block);
1384                         M_BNE(0);
1385                         codegen_addreference(cd, iptr->dst.block);
1386                         break;
1387
1388
1389                 case ICMD_IF_FCMPL_LT:  /* ..., value, value ==> ...                  */
1390                 case ICMD_IF_DCMPL_LT:
1391
1392                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1393                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1394                         M_FCMPU(s1, s2);
1395                         M_BNAN(0);
1396                         codegen_addreference(cd, iptr->dst.block);
1397                         M_BLT(0);
1398                         codegen_addreference(cd, iptr->dst.block);
1399                         break;
1400
1401                 case ICMD_IF_FCMPL_GT:  /* ..., value, value ==> ...                  */
1402                 case ICMD_IF_DCMPL_GT:
1403
1404                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1405                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1406                         M_FCMPU(s1, s2);
1407                         M_BNAN(1);
1408                         M_BGT(0);
1409                         codegen_addreference(cd, iptr->dst.block);
1410                         break;
1411
1412                 case ICMD_IF_FCMPL_LE:  /* ..., value, value ==> ...                  */
1413                 case ICMD_IF_DCMPL_LE:
1414
1415                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1416                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1417                         M_FCMPU(s1, s2);
1418                         M_BNAN(0);
1419                         codegen_addreference(cd, iptr->dst.block);
1420                         M_BLE(0);
1421                         codegen_addreference(cd, iptr->dst.block);
1422                         break;
1423
1424                 case ICMD_IF_FCMPL_GE:  /* ..., value, value ==> ...                  */
1425                 case ICMD_IF_DCMPL_GE:
1426
1427                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1428                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1429                         M_FCMPU(s1, s2);
1430                         M_BNAN(1);
1431                         M_BGE(0);
1432                         codegen_addreference(cd, iptr->dst.block);
1433                         break;
1434
1435                 case ICMD_IF_FCMPG_LT:  /* ..., value, value ==> ...                  */
1436                 case ICMD_IF_DCMPG_LT:
1437
1438                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1439                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1440                         M_FCMPU(s1, s2);
1441                         M_BNAN(1);
1442                         M_BLT(0);
1443                         codegen_addreference(cd, iptr->dst.block);
1444                         break;
1445
1446                 case ICMD_IF_FCMPG_GT:  /* ..., value, value ==> ...                  */
1447                 case ICMD_IF_DCMPG_GT:
1448
1449                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1450                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1451                         M_FCMPU(s1, s2);
1452                         M_BNAN(0);
1453                         codegen_addreference(cd, iptr->dst.block);
1454                         M_BGT(0);
1455                         codegen_addreference(cd, iptr->dst.block);
1456                         break;
1457
1458                 case ICMD_IF_FCMPG_LE:  /* ..., value, value ==> ...                  */
1459                 case ICMD_IF_DCMPG_LE:
1460
1461                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1462                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1463                         M_FCMPU(s1, s2);
1464                         M_BNAN(1);
1465                         M_BLE(0);
1466                         codegen_addreference(cd, iptr->dst.block);
1467                         break;
1468
1469                 case ICMD_IF_FCMPG_GE:  /* ..., value, value ==> ...                  */
1470                 case ICMD_IF_DCMPG_GE:
1471
1472                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1473                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1474                         M_FCMPU(s1, s2);
1475                         M_BNAN(0);
1476                         codegen_addreference(cd, iptr->dst.block);
1477                         M_BGE(0);
1478                         codegen_addreference(cd, iptr->dst.block);
1479                         break;
1480
1481
1482                 /* memory operations **************************************************/
1483
1484                 case ICMD_ARRAYLENGTH: /* ..., arrayref  ==> ..., length              */
1485
1486                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1487                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1488                         gen_nullptr_check(s1);
1489                         M_ILD(d, s1, OFFSET(java_arrayheader, size));
1490                         emit_store_dst(jd, iptr, d);
1491                         break;
1492
1493                 case ICMD_BALOAD:     /* ..., arrayref, index  ==> ..., value         */
1494
1495                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1496                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1497                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1498                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1499                                 gen_nullptr_check(s1);
1500                                 gen_bound_check;
1501                         }
1502                         M_IADD_IMM(s2, OFFSET(java_chararray, data[0]), REG_ITMP2);
1503                         M_LBZX(d, s1, REG_ITMP2);
1504                         M_BSEXT(d, d);
1505                         emit_store_dst(jd, iptr, d);
1506                         break;
1507
1508                 case ICMD_CALOAD:     /* ..., arrayref, index  ==> ..., value         */
1509
1510                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1511                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1512                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1513                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1514                                 gen_nullptr_check(s1);
1515                                 gen_bound_check;
1516                         }
1517                         M_SLL_IMM(s2, 1, REG_ITMP2);
1518                         M_IADD_IMM(REG_ITMP2, OFFSET(java_chararray, data[0]), REG_ITMP2);
1519                         M_LHZX(d, s1, REG_ITMP2);
1520                         emit_store_dst(jd, iptr, d);
1521                         break;
1522
1523                 case ICMD_SALOAD:     /* ..., arrayref, index  ==> ..., value         */
1524
1525                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1526                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1527                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1528                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1529                                 gen_nullptr_check(s1);
1530                                 gen_bound_check;
1531                         }
1532                         M_SLL_IMM(s2, 1, REG_ITMP2);
1533                         M_IADD_IMM(REG_ITMP2, OFFSET(java_shortarray, data[0]), REG_ITMP2);
1534                         M_LHAX(d, s1, REG_ITMP2);
1535                         emit_store_dst(jd, iptr, d);
1536                         break;
1537
1538                 case ICMD_IALOAD:     /* ..., arrayref, index  ==> ..., value         */
1539
1540                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1541                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1542                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1543                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1544                                 gen_nullptr_check(s1);
1545                                 gen_bound_check;
1546                         }
1547                         M_SLL_IMM(s2, 2, REG_ITMP2);
1548                         M_IADD_IMM(REG_ITMP2, OFFSET(java_intarray, data[0]), REG_ITMP2);
1549                         M_LWZX(d, s1, REG_ITMP2);
1550                         emit_store_dst(jd, iptr, d);
1551                         break;
1552
1553                 case ICMD_LALOAD:     /* ..., arrayref, index  ==> ..., value         */
1554
1555                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1556                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1557                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1558                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1559                                 gen_nullptr_check(s1);
1560                                 gen_bound_check;
1561                         }
1562                         M_SLL_IMM(s2, 3, REG_ITMP2);
1563                         M_IADD(s1, REG_ITMP2, REG_ITMP2);
1564                         M_LLD_INTERN(d, REG_ITMP2, OFFSET(java_longarray, data[0]));
1565                         emit_store_dst(jd, iptr, d);
1566                         break;
1567
1568                 case ICMD_FALOAD:     /* ..., arrayref, index  ==> ..., value         */
1569
1570                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1571                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1572                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1573                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1574                                 gen_nullptr_check(s1);
1575                                 gen_bound_check;
1576                         }
1577                         M_SLL_IMM(s2, 2, REG_ITMP2);
1578                         M_IADD_IMM(REG_ITMP2, OFFSET(java_floatarray, data[0]), REG_ITMP2);
1579                         M_LFSX(d, s1, REG_ITMP2);
1580                         emit_store_dst(jd, iptr, d);
1581                         break;
1582
1583                 case ICMD_DALOAD:     /* ..., arrayref, index  ==> ..., value         */
1584
1585                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1586                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1587                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1588                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1589                                 gen_nullptr_check(s1);
1590                                 gen_bound_check;
1591                         }
1592                         M_SLL_IMM(s2, 3, REG_ITMP2);
1593                         M_IADD_IMM(REG_ITMP2, OFFSET(java_doublearray, data[0]), REG_ITMP2);
1594                         M_LFDX(d, s1, REG_ITMP2);
1595                         emit_store_dst(jd, iptr, d);
1596                         break;
1597
1598                 case ICMD_AALOAD:     /* ..., arrayref, index  ==> ..., value         */
1599
1600                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1601                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1602                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1603                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1604                                 gen_nullptr_check(s1);
1605                                 gen_bound_check;
1606                         }
1607                         M_SLL_IMM(s2, 2, REG_ITMP2);
1608                         M_IADD_IMM(REG_ITMP2, OFFSET(java_objectarray, data[0]), REG_ITMP2);
1609                         M_LWZX(d, s1, REG_ITMP2);
1610                         emit_store_dst(jd, iptr, d);
1611                         break;
1612
1613
1614                 case ICMD_BASTORE:    /* ..., arrayref, index, value  ==> ...         */
1615
1616                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1617                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1618                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1619                                 gen_nullptr_check(s1);
1620                                 gen_bound_check;
1621                         }
1622                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1623                         M_IADD_IMM(s2, OFFSET(java_bytearray, data[0]), REG_ITMP2);
1624                         M_STBX(s3, s1, REG_ITMP2);
1625                         break;
1626
1627                 case ICMD_CASTORE:    /* ..., arrayref, index, value  ==> ...         */
1628
1629                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1630                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1631                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1632                                 gen_nullptr_check(s1);
1633                                 gen_bound_check;
1634                         }
1635                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1636                         M_SLL_IMM(s2, 1, REG_ITMP2);
1637                         M_IADD_IMM(REG_ITMP2, OFFSET(java_chararray, data[0]), REG_ITMP2);
1638                         M_STHX(s3, s1, REG_ITMP2);
1639                         break;
1640
1641                 case ICMD_SASTORE:    /* ..., arrayref, index, value  ==> ...         */
1642
1643                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1644                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1645                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1646                                 gen_nullptr_check(s1);
1647                                 gen_bound_check;
1648                         }
1649                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1650                         M_SLL_IMM(s2, 1, REG_ITMP2);
1651                         M_IADD_IMM(REG_ITMP2, OFFSET(java_shortarray, data[0]), REG_ITMP2);
1652                         M_STHX(s3, s1, REG_ITMP2);
1653                         break;
1654
1655                 case ICMD_IASTORE:    /* ..., arrayref, index, value  ==> ...         */
1656
1657                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1658                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1659                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1660                                 gen_nullptr_check(s1);
1661                                 gen_bound_check;
1662                         }
1663                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1664                         M_SLL_IMM(s2, 2, REG_ITMP2);
1665                         M_IADD_IMM(REG_ITMP2, OFFSET(java_intarray, data[0]), REG_ITMP2);
1666                         M_STWX(s3, s1, REG_ITMP2);
1667                         break;
1668
1669                 case ICMD_LASTORE:    /* ..., arrayref, index, value  ==> ...         */
1670
1671                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1672                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1673                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1674                                 gen_nullptr_check(s1);
1675                                 gen_bound_check;
1676                         }
1677                         s3 = emit_load_s3_high(jd, iptr, REG_ITMP3);
1678                         M_SLL_IMM(s2, 3, REG_ITMP2);
1679                         M_IADD_IMM(REG_ITMP2, OFFSET(java_longarray, data[0]), REG_ITMP2);
1680                         M_STWX(s3, s1, REG_ITMP2);
1681                         M_IADD_IMM(REG_ITMP2, 4, REG_ITMP2);
1682                         s3 = emit_load_s3_low(jd, iptr, REG_ITMP3);
1683                         M_STWX(s3, s1, REG_ITMP2);
1684                         break;
1685
1686                 case ICMD_FASTORE:    /* ..., arrayref, index, value  ==> ...         */
1687
1688                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1689                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1690                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1691                                 gen_nullptr_check(s1);
1692                                 gen_bound_check;
1693                         }
1694                         s3 = emit_load_s3(jd, iptr, REG_FTMP3);
1695                         M_SLL_IMM(s2, 2, REG_ITMP2);
1696                         M_IADD_IMM(REG_ITMP2, OFFSET(java_floatarray, data[0]), REG_ITMP2);
1697                         M_STFSX(s3, s1, REG_ITMP2);
1698                         break;
1699
1700                 case ICMD_DASTORE:    /* ..., arrayref, index, value  ==> ...         */
1701
1702                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1703                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1704                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1705                                 gen_nullptr_check(s1);
1706                                 gen_bound_check;
1707                         }
1708                         s3 = emit_load_s3(jd, iptr, REG_FTMP3);
1709                         M_SLL_IMM(s2, 3, REG_ITMP2);
1710                         M_IADD_IMM(REG_ITMP2, OFFSET(java_doublearray, data[0]), REG_ITMP2);
1711                         M_STFDX(s3, s1, REG_ITMP2);
1712                         break;
1713
1714                 case ICMD_AASTORE:    /* ..., arrayref, index, value  ==> ...         */
1715
1716                         s1 = emit_load_s1(jd, iptr, REG_A0);
1717                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1718                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1719                                 gen_nullptr_check(s1);
1720                                 gen_bound_check;
1721                         }
1722                         s3 = emit_load_s3(jd, iptr, REG_A1);
1723
1724                         disp = dseg_add_functionptr(cd, BUILTIN_canstore);
1725                         M_ALD(REG_ITMP3, REG_PV, disp);
1726                         M_MTCTR(REG_ITMP3);
1727
1728                         M_INTMOVE(s1, REG_A0);
1729                         M_INTMOVE(s3, REG_A1);
1730
1731                         M_JSR;
1732                         M_TST(REG_RESULT);
1733                         M_BEQ(0);
1734                         codegen_add_arraystoreexception_ref(cd);
1735
1736                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1737                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1738                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1739                         M_SLL_IMM(s2, 2, REG_ITMP2);
1740                         M_IADD_IMM(REG_ITMP2, OFFSET(java_objectarray, data[0]), REG_ITMP2);
1741                         M_STWX(s3, s1, REG_ITMP2);
1742                         break;
1743
1744
1745                 case ICMD_GETSTATIC:  /* ...  ==> ..., value                          */
1746
1747                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1748                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1749
1750                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1751                                 disp = dseg_add_unique_address(cd, uf);
1752
1753                                 codegen_addpatchref(cd, PATCHER_get_putstatic, uf, disp);
1754
1755                                 if (opt_showdisassemble)
1756                                         M_NOP;
1757                         }
1758                         else {
1759                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1760
1761                                 fieldtype = fi->type;
1762                                 disp = dseg_add_address(cd, &(fi->value));
1763
1764                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1765                                         codegen_addpatchref(cd, PATCHER_initialize_class,
1766                                                                                 fi->class, disp);
1767
1768                                         if (opt_showdisassemble)
1769                                                 M_NOP;
1770                                 }
1771                         }
1772
1773                         M_ALD(REG_ITMP1, REG_PV, disp);
1774                         switch (fieldtype) {
1775                         case TYPE_INT:
1776                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1777                                 M_ILD_INTERN(d, REG_ITMP1, 0);
1778                                 break;
1779                         case TYPE_LNG:
1780                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1781                                 M_ILD_INTERN(GET_LOW_REG(d), REG_ITMP1, 4);/* keep this order */
1782                                 M_ILD_INTERN(GET_HIGH_REG(d), REG_ITMP1, 0);/*keep this order */
1783                                 break;
1784                         case TYPE_ADR:
1785                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1786                                 M_ALD_INTERN(d, REG_ITMP1, 0);
1787                                 break;
1788                         case TYPE_FLT:
1789                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1790                                 M_FLD_INTERN(d, REG_ITMP1, 0);
1791                                 break;
1792                         case TYPE_DBL:
1793                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1794                                 M_DLD_INTERN(d, REG_ITMP1, 0);
1795                                 break;
1796                         }
1797                         emit_store_dst(jd, iptr, d);
1798                         break;
1799
1800                 case ICMD_PUTSTATIC:  /* ..., value  ==> ...                          */
1801
1802                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1803                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1804
1805                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1806                                 disp = dseg_add_unique_address(cd, uf);
1807
1808                                 codegen_addpatchref(cd, PATCHER_get_putstatic, uf, disp);
1809
1810                                 if (opt_showdisassemble)
1811                                         M_NOP;
1812                         }
1813                         else {
1814                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1815
1816                                 fieldtype = fi->type;
1817                                 disp = dseg_add_address(cd, &(fi->value));
1818
1819                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1820                                         codegen_addpatchref(cd, PATCHER_initialize_class,
1821                                                                                 fi->class, disp);
1822
1823                                         if (opt_showdisassemble)
1824                                                 M_NOP;
1825                                 }
1826                         }
1827
1828                         M_ALD(REG_ITMP1, REG_PV, disp);
1829                         switch (fieldtype) {
1830                         case TYPE_INT:
1831                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1832                                 M_IST_INTERN(s1, REG_ITMP1, 0);
1833                                 break;
1834                         case TYPE_LNG:
1835                                 s1 = emit_load_s1(jd, iptr, REG_ITMP23_PACKED);
1836                                 M_LST_INTERN(s1, REG_ITMP1, 0);
1837                                 break;
1838                         case TYPE_ADR:
1839                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1840                                 M_AST_INTERN(s1, REG_ITMP1, 0);
1841                                 break;
1842                         case TYPE_FLT:
1843                                 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1844                                 M_FST_INTERN(s1, REG_ITMP1, 0);
1845                                 break;
1846                         case TYPE_DBL:
1847                                 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1848                                 M_DST_INTERN(s1, REG_ITMP1, 0);
1849                                 break;
1850                         }
1851                         break;
1852
1853
1854                 case ICMD_GETFIELD:   /* ...  ==> ..., value                          */
1855
1856                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1857                         gen_nullptr_check(s1);
1858
1859                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1860                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1861
1862                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1863
1864                                 codegen_addpatchref(cd, PATCHER_get_putfield, uf, 0);
1865
1866                                 if (opt_showdisassemble)
1867                                         M_NOP;
1868
1869                                 disp = 0;
1870                         }
1871                         else {
1872                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1873                                 fieldtype = fi->type;
1874                                 disp      = fi->offset;
1875                         }
1876
1877                         switch (fieldtype) {
1878                         case TYPE_INT:
1879                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1880                                 M_ILD(d, s1, disp);
1881                                 break;
1882                         case TYPE_LNG:
1883                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1884                                 if (GET_HIGH_REG(d) == s1) {
1885                                         M_ILD(GET_LOW_REG(d), s1, disp + 4);
1886                                         M_ILD(GET_HIGH_REG(d), s1, disp);
1887                                 }
1888                                 else {
1889                                         M_ILD(GET_HIGH_REG(d), s1, disp);
1890                                         M_ILD(GET_LOW_REG(d), s1, disp + 4);
1891                                 }
1892                                 break;
1893                         case TYPE_ADR:
1894                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1895                                 M_ALD(d, s1, disp);
1896                                 break;
1897                         case TYPE_FLT:
1898                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1899                                 M_FLD(d, s1, disp);
1900                                 break;
1901                         case TYPE_DBL:
1902                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1903                                 M_DLD(d, s1, disp);
1904                                 break;
1905                         }
1906                         emit_store_dst(jd, iptr, d);
1907                         break;
1908
1909                 case ICMD_PUTFIELD:   /* ..., value  ==> ...                          */
1910
1911                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1912                         gen_nullptr_check(s1);
1913
1914                         if (!IS_FLT_DBL_TYPE(fieldtype)) {
1915                                 if (IS_2_WORD_TYPE(fieldtype))
1916                                         s2 = emit_load_s2(jd, iptr, REG_ITMP23_PACKED);
1917                                 else
1918                                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1919                         }
1920                         else
1921                                 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1922
1923                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1924                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1925
1926                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1927
1928                                 codegen_addpatchref(cd, PATCHER_get_putfield, uf, 0);
1929
1930                                 if (opt_showdisassemble)
1931                                         M_NOP;
1932
1933                                 disp = 0;
1934                         }
1935                         else {
1936                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1937                                 fieldtype = fi->type;
1938                                 disp      = fi->offset;
1939                         }
1940
1941                         switch (fieldtype) {
1942                         case TYPE_INT:
1943                                 M_IST(s2, s1, disp);
1944                                 break;
1945                         case TYPE_LNG:
1946                                 M_IST(GET_LOW_REG(s2), s1, disp + 4);      /* keep this order */
1947                                 M_IST(GET_HIGH_REG(s2), s1, disp);         /* keep this order */
1948                                 break;
1949                         case TYPE_ADR:
1950                                 M_AST(s2, s1, disp);
1951                                 break;
1952                         case TYPE_FLT:
1953                                 M_FST(s2, s1, disp);
1954                                 break;
1955                         case TYPE_DBL:
1956                                 M_DST(s2, s1, disp);
1957                                 break;
1958                         }
1959                         break;
1960
1961
1962                 /* branch operations **************************************************/
1963
1964                 case ICMD_ATHROW:       /* ..., objectref ==> ... (, objectref)       */
1965
1966                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1967                         M_INTMOVE(s1, REG_ITMP1_XPTR);
1968
1969 #ifdef ENABLE_VERIFIER
1970                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1971                                 unresolved_class *uc = iptr->sx.s23.s2.uc;
1972
1973                                 codegen_addpatchref(cd, PATCHER_resolve_class, uc, 0);
1974
1975                                 if (opt_showdisassemble)
1976                                         M_NOP;
1977                         }
1978 #endif /* ENABLE_VERIFIER */
1979
1980                         disp = dseg_add_functionptr(cd, asm_handle_exception);
1981                         M_ALD(REG_ITMP2, REG_PV, disp);
1982                         M_MTCTR(REG_ITMP2);
1983
1984                         if (jd->isleafmethod)
1985                                 M_MFLR(REG_ITMP3);                          /* save LR        */
1986
1987                         M_BL(0);                                        /* get current PC */
1988                         M_MFLR(REG_ITMP2_XPC);
1989
1990                         if (jd->isleafmethod)
1991                                 M_MTLR(REG_ITMP3);                          /* restore LR     */
1992
1993                         M_RTS;                                          /* jump to CTR    */
1994                         ALIGNCODENOP;
1995                         break;
1996
1997                 case ICMD_GOTO:         /* ... ==> ...                                */
1998                 case ICMD_RET:          /* ... ==> ...                                */
1999
2000                         M_BR(0);
2001                         codegen_addreference(cd, iptr->dst.block);
2002                         ALIGNCODENOP;
2003                         break;
2004
2005                 case ICMD_JSR:          /* ... ==> ...                                */
2006
2007                         if (jd->isleafmethod)
2008                                 M_MFLR(REG_ITMP2);
2009
2010                         M_BL(0);
2011                         M_MFLR(REG_ITMP1);
2012                         M_IADD_IMM(REG_ITMP1, jd->isleafmethod ? 4*4 : 3*4, REG_ITMP1);
2013
2014                         if (jd->isleafmethod)
2015                                 M_MTLR(REG_ITMP2);
2016
2017                         M_BR(0);
2018                         codegen_addreference(cd, iptr->sx.s23.s3.jsrtarget.block);
2019                         break;
2020
2021                 case ICMD_IFNULL:       /* ..., value ==> ...                         */
2022
2023                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2024                         M_TST(s1);
2025                         M_BEQ(0);
2026                         codegen_addreference(cd, iptr->dst.block);
2027                         break;
2028
2029                 case ICMD_IFNONNULL:    /* ..., value ==> ...                         */
2030
2031                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2032                         M_TST(s1);
2033                         M_BNE(0);
2034                         codegen_addreference(cd, iptr->dst.block);
2035                         break;
2036
2037                 case ICMD_IFLT:
2038                 case ICMD_IFLE:
2039                 case ICMD_IFNE:
2040                 case ICMD_IFGT:
2041                 case ICMD_IFGE:
2042                 case ICMD_IFEQ:         /* ..., value ==> ...                         */
2043
2044                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2045                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767))
2046                                 M_CMPI(s1, iptr->sx.val.i);
2047                         else {
2048                                 ICONST(REG_ITMP2, iptr->sx.val.i);
2049                                 M_CMP(s1, REG_ITMP2);
2050                         }
2051                         switch (iptr->opc) {
2052                         case ICMD_IFLT:
2053                                 M_BLT(0);
2054                                 break;
2055                         case ICMD_IFLE:
2056                                 M_BLE(0);
2057                                 break;
2058                         case ICMD_IFNE:
2059                                 M_BNE(0);
2060                                 break;
2061                         case ICMD_IFGT:
2062                                 M_BGT(0);
2063                                 break;
2064                         case ICMD_IFGE:
2065                                 M_BGE(0);
2066                                 break;
2067                         case ICMD_IFEQ:
2068                                 M_BEQ(0);
2069                                 break;
2070                         }
2071                         codegen_addreference(cd, iptr->dst.block);
2072                         break;
2073
2074
2075                 case ICMD_IF_LEQ:       /* ..., value ==> ...                         */
2076
2077                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2078                         s2 = emit_load_s1_high(jd, iptr, REG_ITMP2);
2079                         if (iptr->sx.val.l == 0) {
2080                                 M_OR_TST(s1, s2, REG_ITMP3);
2081                         }
2082                         else if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
2083                                 M_XOR_IMM(s2, 0, REG_ITMP2);
2084                                 M_XOR_IMM(s1, iptr->sx.val.l & 0xffff, REG_ITMP1);
2085                                 M_OR_TST(REG_ITMP1, REG_ITMP2, REG_ITMP3);
2086                         }
2087                         else {
2088                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
2089                                 M_XOR(s1, REG_ITMP3, REG_ITMP1);
2090                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
2091                                 M_XOR(s2, REG_ITMP3, REG_ITMP2);
2092                                 M_OR_TST(REG_ITMP1, REG_ITMP2, REG_ITMP3);
2093                         }
2094                         M_BEQ(0);
2095                         codegen_addreference(cd, iptr->dst.block);
2096                         break;
2097
2098                 case ICMD_IF_LLT:       /* ..., value ==> ...                         */
2099                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2100                         s2 = emit_load_s1_high(jd, iptr, REG_ITMP2);
2101                         if (iptr->sx.val.l == 0) {
2102                                 /* if high word is less than zero, the whole long is too */
2103                                 M_CMPI(s2, 0);
2104                         }
2105                         else if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
2106                                 M_CMPI(s2, 0);
2107                                 M_BLT(0);
2108                                 codegen_addreference(cd, iptr->dst.block);
2109                                 M_BGT(2);
2110                                 M_CMPUI(s1, iptr->sx.val.l & 0xffff);
2111                         }
2112                         else {
2113                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
2114                                 M_CMP(s2, REG_ITMP3);
2115                                 M_BLT(0);
2116                                 codegen_addreference(cd, iptr->dst.block);
2117                                 M_BGT(3);
2118                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
2119                                 M_CMPU(s1, REG_ITMP3);
2120                         }
2121                         M_BLT(0);
2122                         codegen_addreference(cd, iptr->dst.block);
2123                         break;
2124
2125                 case ICMD_IF_LLE:       /* ..., value ==> ...                         */
2126
2127                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2128                         s2 = emit_load_s1_high(jd, iptr, REG_ITMP2);
2129 /*                      if (iptr->sx.val.l == 0) { */
2130 /*                              M_OR(s1, s2, REG_ITMP3); */
2131 /*                              M_CMPI(REG_ITMP3, 0); */
2132
2133 /*                      } else  */
2134                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
2135                                 M_CMPI(s2, 0);
2136                                 M_BLT(0);
2137                                 codegen_addreference(cd, iptr->dst.block);
2138                                 M_BGT(2);
2139                                 M_CMPUI(s1, iptr->sx.val.l & 0xffff);
2140                         }
2141                         else {
2142                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
2143                                 M_CMP(s2, REG_ITMP3);
2144                                 M_BLT(0);
2145                                 codegen_addreference(cd, iptr->dst.block);
2146                                 M_BGT(3);
2147                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
2148                                 M_CMPU(s1, REG_ITMP3);
2149                         }
2150                         M_BLE(0);
2151                         codegen_addreference(cd, iptr->dst.block);
2152                         break;
2153
2154                 case ICMD_IF_LNE:       /* ..., value ==> ...                         */
2155
2156                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2157                         s2 = emit_load_s1_high(jd, iptr, REG_ITMP2);
2158                         if (iptr->sx.val.l == 0) {
2159                                 M_OR_TST(s1, s2, REG_ITMP3);
2160                         }
2161                         else if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
2162                                 M_XOR_IMM(s2, 0, REG_ITMP2);
2163                                 M_XOR_IMM(s1, iptr->sx.val.l & 0xffff, REG_ITMP1);
2164                                 M_OR_TST(REG_ITMP1, REG_ITMP2, REG_ITMP3);
2165                         }
2166                         else {
2167                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
2168                                 M_XOR(s1, REG_ITMP3, REG_ITMP1);
2169                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
2170                                 M_XOR(s2, REG_ITMP3, REG_ITMP2);
2171                                 M_OR_TST(REG_ITMP1, REG_ITMP2, REG_ITMP3);
2172                         }
2173                         M_BNE(0);
2174                         codegen_addreference(cd, iptr->dst.block);
2175                         break;
2176
2177                 case ICMD_IF_LGT:       /* ..., value ==> ...                         */
2178
2179                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2180                         s2 = emit_load_s1_high(jd, iptr, REG_ITMP2);
2181 /*                      if (iptr->sx.val.l == 0) { */
2182 /*                              M_OR(s1, s2, REG_ITMP3); */
2183 /*                              M_CMPI(REG_ITMP3, 0); */
2184
2185 /*                      } else  */
2186                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
2187                                 M_CMPI(s2, 0);
2188                                 M_BGT(0);
2189                                 codegen_addreference(cd, iptr->dst.block);
2190                                 M_BLT(2);
2191                                 M_CMPUI(s1, iptr->sx.val.l & 0xffff);
2192                         }
2193                         else {
2194                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
2195                                 M_CMP(s2, REG_ITMP3);
2196                                 M_BGT(0);
2197                                 codegen_addreference(cd, iptr->dst.block);
2198                                 M_BLT(3);
2199                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
2200                                 M_CMPU(s1, REG_ITMP3);
2201                         }
2202                         M_BGT(0);
2203                         codegen_addreference(cd, iptr->dst.block);
2204                         break;
2205
2206                 case ICMD_IF_LGE:       /* ..., value ==> ...                         */
2207
2208                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2209                         s2 = emit_load_s1_high(jd, iptr, REG_ITMP2);
2210                         if (iptr->sx.val.l == 0) {
2211                                 /* if high word is greater equal zero, the whole long is too */
2212                                 M_CMPI(s2, 0);
2213                         }
2214                         else if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
2215                                 M_CMPI(s2, 0);
2216                                 M_BGT(0);
2217                                 codegen_addreference(cd, iptr->dst.block);
2218                                 M_BLT(2);
2219                                 M_CMPUI(s1, iptr->sx.val.l & 0xffff);
2220                         }
2221                         else {
2222                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
2223                                 M_CMP(s2, REG_ITMP3);
2224                                 M_BGT(0);
2225                                 codegen_addreference(cd, iptr->dst.block);
2226                                 M_BLT(3);
2227                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
2228                                 M_CMPU(s1, REG_ITMP3);
2229                         }
2230                         M_BGE(0);
2231                         codegen_addreference(cd, iptr->dst.block);
2232                         break;
2233
2234                 case ICMD_IF_ICMPEQ:    /* ..., value, value ==> ...                  */
2235                 case ICMD_IF_ACMPEQ:    /* op1 = target JavaVM pc                     */
2236
2237                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2238                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2239                         M_CMP(s1, s2);
2240                         M_BEQ(0);
2241                         codegen_addreference(cd, iptr->dst.block);
2242                         break;
2243
2244                 case ICMD_IF_LCMPEQ:    /* ..., value, value ==> ...                  */
2245
2246                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
2247                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
2248                         M_CMP(s1, s2);
2249                         /* load low-bits before the branch, so we know the distance */
2250                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2251                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
2252                         M_BNE(2);
2253                         M_CMP(s1, s2);
2254                         M_BEQ(0);
2255                         codegen_addreference(cd, iptr->dst.block);
2256                         break;
2257
2258                 case ICMD_IF_ICMPNE:    /* ..., value, value ==> ...                  */
2259                 case ICMD_IF_ACMPNE:    /* op1 = target JavaVM pc                     */
2260
2261                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2262                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2263                         M_CMP(s1, s2);
2264                         M_BNE(0);
2265                         codegen_addreference(cd, iptr->dst.block);
2266                         break;
2267
2268                 case ICMD_IF_LCMPNE:    /* ..., value, value ==> ...                  */
2269
2270                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
2271                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
2272                         M_CMP(s1, s2);
2273                         M_BNE(0);
2274                         codegen_addreference(cd, iptr->dst.block);
2275                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2276                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
2277                         M_CMP(s1, s2);
2278                         M_BNE(0);
2279                         codegen_addreference(cd, iptr->dst.block);
2280                         break;
2281
2282                 case ICMD_IF_ICMPLT:    /* ..., value, value ==> ...                  */
2283
2284                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2285                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2286                         M_CMP(s1, s2);
2287                         M_BLT(0);
2288                         codegen_addreference(cd, iptr->dst.block);
2289                         break;
2290
2291                 case ICMD_IF_LCMPLT:    /* ..., value, value ==> ...                  */
2292
2293                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
2294                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
2295                         M_CMP(s1, s2);
2296                         M_BLT(0);
2297                         codegen_addreference(cd, iptr->dst.block);
2298                         /* load low-bits before the branch, so we know the distance */
2299                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2300                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
2301                         M_BGT(2);
2302                         M_CMPU(s1, s2);
2303                         M_BLT(0);
2304                         codegen_addreference(cd, iptr->dst.block);
2305                         break;
2306
2307                 case ICMD_IF_ICMPGT:    /* ..., value, value ==> ...                  */
2308
2309                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2310                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2311                         M_CMP(s1, s2);
2312                         M_BGT(0);
2313                         codegen_addreference(cd, iptr->dst.block);
2314                         break;
2315
2316                 case ICMD_IF_LCMPGT:    /* ..., value, value ==> ...                  */
2317
2318                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
2319                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
2320                         M_CMP(s1, s2);
2321                         M_BGT(0);
2322                         codegen_addreference(cd, iptr->dst.block);
2323                         /* load low-bits before the branch, so we know the distance */
2324                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2325                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
2326                         M_BLT(2);
2327                         M_CMPU(s1, s2);
2328                         M_BGT(0);
2329                         codegen_addreference(cd, iptr->dst.block);
2330                         break;
2331
2332                 case ICMD_IF_ICMPLE:    /* ..., value, value ==> ...                  */
2333
2334                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2335                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2336                         M_CMP(s1, s2);
2337                         M_BLE(0);
2338                         codegen_addreference(cd, iptr->dst.block);
2339                         break;
2340
2341                 case ICMD_IF_LCMPLE:    /* ..., value, value ==> ...                  */
2342
2343                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
2344                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
2345                         M_CMP(s1, s2);
2346                         M_BLT(0);
2347                         codegen_addreference(cd, iptr->dst.block);
2348                         /* load low-bits before the branch, so we know the distance */
2349                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2350                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
2351                         M_BGT(2);
2352                         M_CMPU(s1, s2);
2353                         M_BLE(0);
2354                         codegen_addreference(cd, iptr->dst.block);
2355                         break;
2356
2357                 case ICMD_IF_ICMPGE:    /* ..., value, value ==> ...                  */
2358
2359                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2360                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2361                         M_CMP(s1, s2);
2362                         M_BGE(0);
2363                         codegen_addreference(cd, iptr->dst.block);
2364                         break;
2365
2366                 case ICMD_IF_LCMPGE:    /* ..., value, value ==> ...                  */
2367
2368                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
2369                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
2370                         M_CMP(s1, s2);
2371                         M_BGT(0);
2372                         codegen_addreference(cd, iptr->dst.block);
2373                         /* load low-bits before the branch, so we know the distance */
2374                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2375                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
2376                         M_BLT(2);
2377                         M_CMPU(s1, s2);
2378                         M_BGE(0);
2379                         codegen_addreference(cd, iptr->dst.block);
2380                         break;
2381
2382                 case ICMD_IRETURN:      /* ..., retvalue ==> ...                      */
2383
2384                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2385                         M_INTMOVE(s1, REG_RESULT);
2386                         goto nowperformreturn;
2387
2388                 case ICMD_ARETURN:      /* ..., retvalue ==> ...                      */
2389
2390                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2391                         M_INTMOVE(s1, REG_RESULT);
2392
2393 #ifdef ENABLE_VERIFIER
2394                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2395                                 unresolved_class *uc = iptr->sx.s23.s2.uc;
2396
2397                                 codegen_addpatchref(cd, PATCHER_resolve_class, uc, 0);
2398
2399                                 if (opt_showdisassemble)
2400                                         M_NOP;
2401                         }
2402 #endif /* ENABLE_VERIFIER */
2403                         goto nowperformreturn;
2404
2405                 case ICMD_LRETURN:      /* ..., retvalue ==> ...                      */
2406
2407                         s1 = emit_load_s1(jd, iptr, REG_RESULT_PACKED);
2408                         M_LNGMOVE(s1, REG_RESULT_PACKED);
2409                         goto nowperformreturn;
2410
2411                 case ICMD_FRETURN:      /* ..., retvalue ==> ...                      */
2412                 case ICMD_DRETURN:
2413
2414                         s1 = emit_load_s1(jd, iptr, REG_FRESULT);
2415                         M_FLTMOVE(s1, REG_FRESULT);
2416                         goto nowperformreturn;
2417
2418                 case ICMD_RETURN:      /* ...  ==> ...                                */
2419
2420 nowperformreturn:
2421                         {
2422                         s4 i, p;
2423
2424                         p = cd->stackframesize;
2425
2426                         /* call trace function */
2427
2428                         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
2429                                 emit_verbosecall_exit(jd);
2430
2431 #if defined(ENABLE_THREADS)
2432                         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
2433                                 disp = dseg_add_functionptr(cd, LOCK_monitor_exit);
2434                                 M_ALD(REG_ITMP3, REG_PV, disp);
2435                                 M_MTCTR(REG_ITMP3);
2436
2437                                 /* we need to save the proper return value */
2438
2439                                 switch (iptr->opc) {
2440                                 case ICMD_LRETURN:
2441                                         M_IST(REG_RESULT2, REG_SP, rd->memuse * 4 + 8);
2442                                         /* fall through */
2443                                 case ICMD_IRETURN:
2444                                 case ICMD_ARETURN:
2445                                         M_IST(REG_RESULT , REG_SP, rd->memuse * 4 + 4);
2446                                         break;
2447                                 case ICMD_FRETURN:
2448                                         M_FST(REG_FRESULT, REG_SP, rd->memuse * 4 + 4);
2449                                         break;
2450                                 case ICMD_DRETURN:
2451                                         M_DST(REG_FRESULT, REG_SP, rd->memuse * 4 + 4);
2452                                         break;
2453                                 }
2454
2455                                 M_ALD(REG_A0, REG_SP, rd->memuse * 4);
2456                                 M_JSR;
2457
2458                                 /* and now restore the proper return value */
2459
2460                                 switch (iptr->opc) {
2461                                 case ICMD_LRETURN:
2462                                         M_ILD(REG_RESULT2, REG_SP, rd->memuse * 4 + 8);
2463                                         /* fall through */
2464                                 case ICMD_IRETURN:
2465                                 case ICMD_ARETURN:
2466                                         M_ILD(REG_RESULT , REG_SP, rd->memuse * 4 + 4);
2467                                         break;
2468                                 case ICMD_FRETURN:
2469                                         M_FLD(REG_FRESULT, REG_SP, rd->memuse * 4 + 4);
2470                                         break;
2471                                 case ICMD_DRETURN:
2472                                         M_DLD(REG_FRESULT, REG_SP, rd->memuse * 4 + 4);
2473                                         break;
2474                                 }
2475                         }
2476 #endif
2477
2478                         /* restore return address                                         */
2479
2480                         if (!jd->isleafmethod) {
2481                                 /* ATTENTION: Don't use REG_ZERO (r0) here, as M_ALD
2482                                    may have a displacement overflow. */
2483
2484                                 M_ALD(REG_ITMP1, REG_SP, p * 4 + LA_LR_OFFSET);
2485                                 M_MTLR(REG_ITMP1);
2486                         }
2487
2488                         /* restore saved registers                                        */
2489
2490                         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
2491                                 p--; M_ILD(rd->savintregs[i], REG_SP, p * 4);
2492                         }
2493                         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
2494                                 p -= 2; M_DLD(rd->savfltregs[i], REG_SP, p * 4);
2495                         }
2496
2497                         /* deallocate stack                                               */
2498
2499                         if (cd->stackframesize)
2500                                 M_LDA(REG_SP, REG_SP, cd->stackframesize * 4);
2501
2502                         M_RET;
2503                         ALIGNCODENOP;
2504                         }
2505                         break;
2506
2507
2508                 case ICMD_TABLESWITCH:  /* ..., index ==> ...                         */
2509                         {
2510                         s4 i, l;
2511                         branch_target_t *table;
2512
2513                         table = iptr->dst.table;
2514
2515                         l = iptr->sx.s23.s2.tablelow;
2516                         i = iptr->sx.s23.s3.tablehigh;
2517
2518                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2519                         if (l == 0)
2520                                 M_INTMOVE(s1, REG_ITMP1);
2521                         else if (l <= 32768)
2522                                 M_LDA(REG_ITMP1, s1, -l);
2523                         else {
2524                                 ICONST(REG_ITMP2, l);
2525                                 M_ISUB(s1, REG_ITMP2, REG_ITMP1);
2526                         }
2527
2528                         i = i - l + 1;
2529
2530                         /* range check */
2531
2532                         M_CMPUI(REG_ITMP1, i - 1);
2533                         M_BGT(0);
2534                         codegen_addreference(cd, table[0].block);
2535
2536                         /* build jump table top down and use address of lowest entry */
2537
2538                         table += i;
2539
2540                         while (--i >= 0) {
2541                                 dseg_add_target(cd, table->block);
2542                                 --table;
2543                         }
2544
2545                         /* length of dataseg after last dseg_add_target is used by load */
2546
2547                         M_SLL_IMM(REG_ITMP1, 2, REG_ITMP1);
2548                         M_IADD(REG_ITMP1, REG_PV, REG_ITMP2);
2549                         M_ALD(REG_ITMP2, REG_ITMP2, -(cd->dseglen));
2550                         M_MTCTR(REG_ITMP2);
2551                         M_RTS;
2552                         ALIGNCODENOP;
2553                         }
2554                         break;
2555
2556
2557                 case ICMD_LOOKUPSWITCH: /* ..., key ==> ...                           */
2558                         {
2559                         s4 i;
2560                         lookup_target_t *lookup;
2561
2562                         lookup = iptr->dst.lookup;
2563
2564                         i = iptr->sx.s23.s2.lookupcount;
2565
2566                         MCODECHECK((i<<2)+8);
2567                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2568
2569                         while (--i >= 0) {
2570                                 if ((lookup->value >= -32768) && (lookup->value <= 32767)) {
2571                                         M_CMPI(s1, lookup->value);
2572                                 }
2573                                 else {
2574                                         disp = dseg_add_s4(cd, lookup->value);
2575                                         M_ILD(REG_ITMP2, REG_PV, disp);
2576                                         M_CMP(s1, REG_ITMP2);
2577                                 }
2578                                 M_BEQ(0);
2579                                 codegen_addreference(cd, lookup->target.block);
2580                                 lookup++;
2581                         }
2582
2583                         M_BR(0);
2584                         codegen_addreference(cd, iptr->sx.s23.s3.lookupdefault.block);
2585
2586                         ALIGNCODENOP;
2587                         break;
2588                         }
2589
2590
2591                 case ICMD_BUILTIN:      /* ..., [arg1, [arg2 ...]] ==> ...            */
2592
2593                         bte = iptr->sx.s23.s3.bte;
2594                         md  = bte->md;
2595                         goto gen_method;
2596
2597                 case ICMD_INVOKESTATIC: /* ..., [arg1, [arg2 ...]] ==> ...            */
2598
2599                 case ICMD_INVOKESPECIAL:/* ..., objectref, [arg1, [arg2 ...]] ==> ... */
2600                 case ICMD_INVOKEVIRTUAL:/* op1 = arg count, val.a = method pointer    */
2601                 case ICMD_INVOKEINTERFACE:
2602
2603                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2604                                 lm = NULL;
2605                                 um = iptr->sx.s23.s3.um;
2606                                 md = um->methodref->parseddesc.md;
2607                         }
2608                         else {
2609                                 lm = iptr->sx.s23.s3.fmiref->p.method;
2610                                 um = NULL;
2611                                 md = lm->parseddesc;
2612                         }
2613
2614 gen_method:
2615                         s3 = md->paramcount;
2616
2617                         MCODECHECK((s3 << 1) + 64);
2618
2619                         /* copy arguments to registers or stack location */
2620
2621                         for (s3 = s3 - 1; s3 >= 0; s3--) {
2622                                 var = VAR(iptr->sx.s23.s2.args[s3]);
2623
2624                                 /* Already Preallocated? */
2625                                 if (var->flags & PREALLOC)
2626                                         continue;
2627
2628                                 if (IS_INT_LNG_TYPE(var->type)) {
2629                                         if (!md->params[s3].inmemory) {
2630                                                 if (IS_2_WORD_TYPE(var->type)) {
2631                                                         s1 = PACK_REGS(
2632                                                    rd->argintregs[GET_LOW_REG(md->params[s3].regoff)],
2633                                                    rd->argintregs[GET_HIGH_REG(md->params[s3].regoff)]);
2634                                                         d = emit_load(jd, iptr, var, s1);
2635                                                         M_LNGMOVE(d, s1);
2636                                                 }
2637                                                 else {
2638                                                         s1 = rd->argintregs[md->params[s3].regoff];
2639                                                         d = emit_load(jd, iptr, var, s1);
2640                                                         M_INTMOVE(d, s1);
2641                                                 }
2642                                         }
2643                                         else {
2644                                                 if (IS_2_WORD_TYPE(var->type)) {
2645                                                         d = emit_load(jd, iptr, var, REG_ITMP12_PACKED);
2646                                                         M_LST(d, REG_SP, md->params[s3].regoff * 4);
2647                                                 }
2648                                                 else {
2649                                                         d = emit_load(jd, iptr, var, REG_ITMP1);
2650                                                         M_IST(d, REG_SP, md->params[s3].regoff * 4);
2651                                                 }
2652                                         }
2653                                 }
2654                                 else {
2655                                         if (!md->params[s3].inmemory) {
2656                                                 s1 = rd->argfltregs[md->params[s3].regoff];
2657                                                 d = emit_load(jd, iptr, var, s1);
2658                                                 M_FLTMOVE(d, s1);
2659                                         }
2660                                         else {
2661                                                 d = emit_load(jd, iptr, var, REG_FTMP1);
2662                                                 if (IS_2_WORD_TYPE(var->type))
2663                                                         M_DST(d, REG_SP, md->params[s3].regoff * 4);
2664                                                 else
2665                                                         M_FST(d, REG_SP, md->params[s3].regoff * 4);
2666                                         }
2667                                 }
2668                         }
2669
2670                         switch (iptr->opc) {
2671                         case ICMD_BUILTIN:
2672                                 disp = dseg_add_functionptr(cd, bte->fp);
2673
2674                                 M_ALD(REG_PV, REG_PV, disp);  /* pointer to built-in-function */
2675                                 break;
2676
2677                         case ICMD_INVOKESPECIAL:
2678                                 gen_nullptr_check(REG_A0);
2679                                 M_ILD(REG_ITMP1, REG_A0, 0); /* hardware nullptr   */
2680                                 /* fall through */
2681
2682                         case ICMD_INVOKESTATIC:
2683                                 if (lm == NULL) {
2684                                         disp = dseg_add_unique_address(cd, um);
2685
2686                                         codegen_addpatchref(cd, PATCHER_invokestatic_special,
2687                                                                                 um, disp);
2688
2689                                         if (opt_showdisassemble)
2690                                                 M_NOP;
2691                                 }
2692                                 else
2693                                         disp = dseg_add_address(cd, lm->stubroutine);
2694
2695                                 M_ALD(REG_PV, REG_PV, disp);
2696                                 break;
2697
2698                         case ICMD_INVOKEVIRTUAL:
2699                                 gen_nullptr_check(REG_A0);
2700
2701                                 if (lm == NULL) {
2702                                         codegen_addpatchref(cd, PATCHER_invokevirtual, um, 0);
2703
2704                                         if (opt_showdisassemble)
2705                                                 M_NOP;
2706
2707                                         s1 = 0;
2708                                 }
2709                                 else {
2710                                         s1 = OFFSET(vftbl_t, table[0]) +
2711                                                 sizeof(methodptr) * lm->vftblindex;
2712                                 }
2713
2714                                 M_ALD(REG_METHODPTR, REG_A0,
2715                                           OFFSET(java_objectheader, vftbl));
2716                                 M_ALD(REG_PV, REG_METHODPTR, s1);
2717                                 break;
2718
2719                         case ICMD_INVOKEINTERFACE:
2720                                 gen_nullptr_check(REG_A0);
2721
2722                                 if (lm == NULL) {
2723                                         codegen_addpatchref(cd, PATCHER_invokeinterface, um, 0);
2724
2725                                         if (opt_showdisassemble)
2726                                                 M_NOP;
2727
2728                                         s1 = 0;
2729                                         s2 = 0;
2730                                 }
2731                                 else {
2732                                         s1 = OFFSET(vftbl_t, interfacetable[0]) -
2733                                                 sizeof(methodptr*) * lm->class->index;
2734
2735                                         s2 = sizeof(methodptr) * (lm - lm->class->methods);
2736                                 }
2737
2738                                 M_ALD(REG_METHODPTR, REG_A0,
2739                                           OFFSET(java_objectheader, vftbl));
2740                                 M_ALD(REG_METHODPTR, REG_METHODPTR, s1);
2741                                 M_ALD(REG_PV, REG_METHODPTR, s2);
2742                                 break;
2743                         }
2744
2745                         /* generate the actual call */
2746
2747                         M_MTCTR(REG_PV);
2748                         M_JSR;
2749                         disp = (s4) (cd->mcodeptr - cd->mcodebase);
2750                         M_MFLR(REG_ITMP1);
2751                         M_LDA(REG_PV, REG_ITMP1, -disp);
2752
2753                         /* actually only used for ICMD_BUILTIN */
2754
2755                         if (INSTRUCTION_MUST_CHECK(iptr)) {
2756                                 M_CMPI(REG_RESULT, 0);
2757                                 M_BEQ(0);
2758                                 codegen_add_fillinstacktrace_ref(cd);
2759                         }
2760
2761                         /* store return value */
2762
2763                         d = md->returntype.type;
2764
2765                         if (d != TYPE_VOID) {
2766                                 if (IS_INT_LNG_TYPE(d)) {
2767                                         if (IS_2_WORD_TYPE(d)) {
2768                                                 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
2769                                                 M_LNGMOVE(REG_RESULT_PACKED, s1);
2770                                         }
2771                                         else {
2772                                                 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2773                                                 M_INTMOVE(REG_RESULT, s1);
2774                                         }
2775                                 }
2776                                 else {
2777                                         s1 = codegen_reg_of_dst(jd, iptr, REG_FRESULT);
2778                                         M_FLTMOVE(REG_FRESULT, s1);
2779                                 }
2780                                 emit_store_dst(jd, iptr, s1);
2781                         }
2782                         break;
2783
2784
2785                 case ICMD_CHECKCAST:  /* ..., objectref ==> ..., objectref            */
2786                                       /* val.a: (classinfo*) superclass               */
2787
2788                         /*  superclass is an interface:
2789                          *
2790                          *  OK if ((sub == NULL) ||
2791                          *         (sub->vftbl->interfacetablelength > super->index) &&
2792                          *         (sub->vftbl->interfacetable[-super->index] != NULL));
2793                          *
2794                          *  superclass is a class:
2795                          *
2796                          *  OK if ((sub == NULL) || (0
2797                          *         <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2798                          *         super->vftbl->diffvall));
2799                          */
2800
2801                         if (!(iptr->flags.bits & INS_FLAG_ARRAY)) {
2802                                 /* object type cast-check */
2803
2804                                 classinfo *super;
2805                                 s4         superindex;
2806
2807                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2808                                         super = NULL;
2809                                         superindex = 0;
2810                                 }
2811                                 else {
2812                                         super = iptr->sx.s23.s3.c.cls;
2813                                         superindex = super->index;
2814                                 }
2815
2816 #if defined(ENABLE_THREADS)
2817                                 codegen_threadcritrestart(cd, cd->mcodeptr - cd->mcodebase);
2818 #endif
2819
2820                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2821
2822                                 /* calculate interface checkcast code size */
2823
2824                                 s2 = 7;
2825                                 if (super == NULL)
2826                                         s2 += (opt_showdisassemble ? 1 : 0);
2827
2828                                 /* calculate class checkcast code size */
2829
2830                                 s3 = 8 + (s1 == REG_ITMP1);
2831                                 if (super == NULL)
2832                                         s3 += (opt_showdisassemble ? 1 : 0);
2833
2834                                 /* if class is not resolved, check which code to call */
2835
2836                                 if (super == NULL) {
2837                                         M_TST(s1);
2838                                         M_BEQ(3 + (opt_showdisassemble ? 1 : 0) + s2 + 1 + s3);
2839
2840                                         disp = dseg_add_unique_s4(cd, 0);         /* super->flags */
2841
2842                                         codegen_addpatchref(cd,
2843                                                                                 PATCHER_resolve_classref_to_flags,
2844                                                                                 iptr->sx.s23.s3.c.ref,
2845                                                                                 disp);
2846
2847                                         if (opt_showdisassemble)
2848                                                 M_NOP;
2849
2850                                         M_ILD(REG_ITMP2, REG_PV, disp);
2851                                         M_AND_IMM(REG_ITMP2, ACC_INTERFACE, REG_ITMP2);
2852                                         M_BEQ(s2 + 1);
2853                                 }
2854
2855                                 /* interface checkcast code */
2856
2857                                 if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2858                                         if (super == NULL) {
2859                                                 codegen_addpatchref(cd,
2860                                                                                         PATCHER_checkcast_instanceof_interface,
2861                                                                                         iptr->sx.s23.s3.c.ref,
2862                                                                                         0);
2863
2864                                                 if (opt_showdisassemble)
2865                                                         M_NOP;
2866                                         }
2867                                         else {
2868                                                 M_TST(s1);
2869                                                 M_BEQ(s2);
2870                                         }
2871
2872                                         M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2873                                         M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, interfacetablelength));
2874                                         M_LDATST(REG_ITMP3, REG_ITMP3, -superindex);
2875                                         M_BLE(0);
2876                                         codegen_add_classcastexception_ref(cd, s1);
2877                                         M_ALD(REG_ITMP3, REG_ITMP2,
2878                                                   OFFSET(vftbl_t, interfacetable[0]) -
2879                                                   superindex * sizeof(methodptr*));
2880                                         M_TST(REG_ITMP3);
2881                                         M_BEQ(0);
2882                                         codegen_add_classcastexception_ref(cd, s1);
2883
2884                                         if (super == NULL)
2885                                                 M_BR(s3);
2886                                 }
2887
2888                                 /* class checkcast code */
2889
2890                                 if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2891                                         if (super == NULL) {
2892                                                 disp = dseg_add_unique_address(cd, NULL);
2893
2894                                                 codegen_addpatchref(cd, PATCHER_resolve_classref_to_vftbl,
2895                                                                                         iptr->sx.s23.s3.c.ref,
2896                                                                                         disp);
2897
2898                                                 if (opt_showdisassemble)
2899                                                         M_NOP;
2900                                         }
2901                                         else {
2902                                                 disp = dseg_add_address(cd, super->vftbl);
2903
2904                                                 M_TST(s1);
2905                                                 M_BEQ(s3);
2906                                         }
2907
2908                                         M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2909 #if defined(ENABLE_THREADS)
2910                                         codegen_threadcritstart(cd, cd->mcodeptr - cd->mcodebase);
2911 #endif
2912                                         M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2913                                         M_ALD(REG_ITMP2, REG_PV, disp);
2914                                         if (s1 != REG_ITMP1) {
2915                                                 M_ILD(REG_ITMP1, REG_ITMP2, OFFSET(vftbl_t, baseval));
2916                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2917 #if defined(ENABLE_THREADS)
2918                                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2919 #endif
2920                                                 M_ISUB(REG_ITMP3, REG_ITMP1, REG_ITMP3);
2921                                         } else {
2922                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, baseval));
2923                                                 M_ISUB(REG_ITMP3, REG_ITMP2, REG_ITMP3);
2924                                                 M_ALD(REG_ITMP2, REG_PV, disp);
2925                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2926 #if defined(ENABLE_THREADS)
2927                                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2928 #endif
2929                                         }
2930                                         M_CMPU(REG_ITMP3, REG_ITMP2);
2931                                         M_BGT(0);
2932                                         codegen_add_classcastexception_ref(cd, s1);
2933                                 }
2934                                 d = codegen_reg_of_dst(jd, iptr, s1);
2935                         }
2936                         else {
2937                                 /* array type cast-check */
2938
2939                                 s1 = emit_load_s1(jd, iptr, REG_A0);
2940                                 M_INTMOVE(s1, REG_A0);
2941
2942                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2943                                         disp = dseg_add_unique_address(cd, NULL);
2944
2945                                         codegen_addpatchref(cd, PATCHER_resolve_classref_to_classinfo,
2946                                                                                 iptr->sx.s23.s3.c.ref,
2947                                                                                 disp);
2948
2949                                         if (opt_showdisassemble)
2950                                                 M_NOP;
2951                                 }
2952                                 else
2953                                         disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2954
2955                                 M_ALD(REG_A1, REG_PV, disp);
2956                                 disp = dseg_add_functionptr(cd, BUILTIN_arraycheckcast);
2957                                 M_ALD(REG_ITMP2, REG_PV, disp);
2958                                 M_MTCTR(REG_ITMP2);
2959                                 M_JSR;
2960                                 M_TST(REG_RESULT);
2961                                 M_BEQ(0);
2962                                 codegen_add_classcastexception_ref(cd, s1);
2963
2964                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2965                                 d = codegen_reg_of_dst(jd, iptr, s1);
2966                         }
2967                         M_INTMOVE(s1, d);
2968                         emit_store_dst(jd, iptr, d);
2969                         break;
2970
2971                 case ICMD_INSTANCEOF: /* ..., objectref ==> ..., intresult            */
2972                                       /* val.a: (classinfo*) superclass               */
2973
2974                         /*  superclass is an interface:
2975                          *
2976                          *  return (sub != NULL) &&
2977                          *         (sub->vftbl->interfacetablelength > super->index) &&
2978                          *         (sub->vftbl->interfacetable[-super->index] != NULL);
2979                          *
2980                          *  superclass is a class:
2981                          *
2982                          *  return ((sub != NULL) && (0
2983                          *          <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2984                          *          super->vftbl->diffvall));
2985                          */
2986
2987                         {
2988                         classinfo *super;
2989                         s4         superindex;
2990
2991                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2992                                 super = NULL;
2993                                 superindex = 0;
2994                         }
2995                         else {
2996                                 super = iptr->sx.s23.s3.c.cls;
2997                                 superindex = super->index;
2998                         }
2999
3000 #if defined(ENABLE_THREADS)
3001             codegen_threadcritrestart(cd, cd->mcodeptr - cd->mcodebase);
3002 #endif
3003                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
3004                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
3005                         if (s1 == d) {
3006                                 M_MOV(s1, REG_ITMP1);
3007                                 s1 = REG_ITMP1;
3008                         }
3009
3010                         /* calculate interface instanceof code size */
3011
3012                         s2 = 8;
3013                         if (super == NULL)
3014                                 s2 += (opt_showdisassemble ? 1 : 0);
3015
3016                         /* calculate class instanceof code size */
3017
3018                         s3 = 10;
3019                         if (super == NULL)
3020                                 s3 += (opt_showdisassemble ? 1 : 0);
3021
3022                         M_CLR(d);
3023
3024                         /* if class is not resolved, check which code to call */
3025
3026                         if (super == NULL) {
3027                                 M_TST(s1);
3028                                 M_BEQ(3 + (opt_showdisassemble ? 1 : 0) + s2 + 1 + s3);
3029
3030                                 disp = dseg_add_unique_s4(cd, 0);             /* super->flags */
3031
3032                                 codegen_addpatchref(cd, PATCHER_resolve_classref_to_flags,
3033                                                                         iptr->sx.s23.s3.c.ref, disp);
3034
3035                                 if (opt_showdisassemble)
3036                                         M_NOP;
3037
3038                                 M_ILD(REG_ITMP3, REG_PV, disp);
3039                                 M_AND_IMM(REG_ITMP3, ACC_INTERFACE, REG_ITMP3);
3040                                 M_BEQ(s2 + 1);
3041                         }
3042
3043                         /* interface instanceof code */
3044
3045                         if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
3046                                 if (super == NULL) {
3047                                         codegen_addpatchref(cd,
3048                                                                                 PATCHER_checkcast_instanceof_interface,
3049                                                                                 iptr->sx.s23.s3.c.ref, 0);
3050
3051                                         if (opt_showdisassemble)
3052                                                 M_NOP;
3053                                 }
3054                                 else {
3055                                         M_TST(s1);
3056                                         M_BEQ(s2);
3057                                 }
3058
3059                                 M_ALD(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
3060                                 M_ILD(REG_ITMP3, REG_ITMP1, OFFSET(vftbl_t, interfacetablelength));
3061                                 M_LDATST(REG_ITMP3, REG_ITMP3, -superindex);
3062                                 M_BLE(4);
3063                                 M_ALD(REG_ITMP1, REG_ITMP1,
3064                                           OFFSET(vftbl_t, interfacetable[0]) -
3065                                           superindex * sizeof(methodptr*));
3066                                 M_TST(REG_ITMP1);
3067                                 M_BEQ(1);
3068                                 M_IADD_IMM(REG_ZERO, 1, d);
3069
3070                                 if (super == NULL)
3071                                         M_BR(s3);
3072                         }
3073
3074                         /* class instanceof code */
3075
3076                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
3077                                 if (super == NULL) {
3078                                         disp = dseg_add_unique_address(cd, NULL);
3079
3080                                         codegen_addpatchref(cd, PATCHER_resolve_classref_to_vftbl,
3081                                                                                 iptr->sx.s23.s3.c.ref,
3082                                                                                 disp);
3083
3084                                         if (opt_showdisassemble)
3085                                                 M_NOP;
3086                                 }
3087                                 else {
3088                                         disp = dseg_add_address(cd, super->vftbl);
3089
3090                                         M_TST(s1);
3091                                         M_BEQ(s3);
3092                                 }
3093
3094                                 M_ALD(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
3095                                 M_ALD(REG_ITMP2, REG_PV, disp);
3096 #if defined(ENABLE_THREADS)
3097                                 codegen_threadcritstart(cd, cd->mcodeptr - cd->mcodebase);
3098 #endif
3099                                 M_ILD(REG_ITMP1, REG_ITMP1, OFFSET(vftbl_t, baseval));
3100                                 M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
3101                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
3102 #if defined(ENABLE_THREADS)
3103                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
3104 #endif
3105                                 M_ISUB(REG_ITMP1, REG_ITMP3, REG_ITMP1);
3106                                 M_CMPU(REG_ITMP1, REG_ITMP2);
3107                                 M_CLR(d);
3108                                 M_BGT(1);
3109                                 M_IADD_IMM(REG_ZERO, 1, d);
3110                         }
3111                         emit_store_dst(jd, iptr, d);
3112                         }
3113                         break;
3114
3115                 case ICMD_MULTIANEWARRAY:/* ..., cnt1, [cnt2, ...] ==> ..., arrayref  */
3116
3117                         /* check for negative sizes and copy sizes to stack if necessary  */
3118
3119                         MCODECHECK((iptr->s1.argcount << 1) + 64);
3120
3121                         for (s1 = iptr->s1.argcount; --s1 >= 0;) {
3122                                 var = VAR(iptr->sx.s23.s2.args[s1]);
3123
3124                                 /* copy SAVEDVAR sizes to stack */
3125
3126                                 /* Already Preallocated? */
3127                                 if (!(var->flags & PREALLOC)) {
3128                                         s2 = emit_load(jd, iptr, var, REG_ITMP1);
3129 #if defined(__DARWIN__)
3130                                         M_IST(s2, REG_SP, LA_SIZE + (s1 + INT_ARG_CNT) * 4);
3131 #else
3132                                         M_IST(s2, REG_SP, LA_SIZE + (s1 + 3) * 4);
3133 #endif
3134                                 }
3135                         }
3136
3137                         /* a0 = dimension count */
3138
3139                         ICONST(REG_A0, iptr->s1.argcount);
3140
3141                         /* is patcher function set? */
3142
3143                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
3144                                 disp = dseg_add_unique_address(cd, NULL);
3145
3146                                 codegen_addpatchref(cd, PATCHER_resolve_classref_to_classinfo,
3147                                                                         iptr->sx.s23.s3.c.ref, disp);
3148
3149                                 if (opt_showdisassemble)
3150                                         M_NOP;
3151                         }
3152                         else
3153                                 disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
3154
3155                         /* a1 = arraydescriptor */
3156
3157                         M_ALD(REG_A1, REG_PV, disp);
3158
3159                         /* a2 = pointer to dimensions = stack pointer */
3160
3161 #if defined(__DARWIN__)
3162                         M_LDA(REG_A2, REG_SP, LA_SIZE + INT_ARG_CNT * 4);
3163 #else
3164                         M_LDA(REG_A2, REG_SP, LA_SIZE + 3 * 4);
3165 #endif
3166
3167                         disp = dseg_add_functionptr(cd, BUILTIN_multianewarray);
3168                         M_ALD(REG_ITMP3, REG_PV, disp);
3169                         M_MTCTR(REG_ITMP3);
3170                         M_JSR;
3171
3172                         /* check for exception before result assignment */
3173
3174                         M_CMPI(REG_RESULT, 0);
3175                         M_BEQ(0);
3176                         codegen_add_fillinstacktrace_ref(cd);
3177
3178                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
3179                         M_INTMOVE(REG_RESULT, d);
3180                         emit_store_dst(jd, iptr, d);
3181                         break;
3182
3183                 default:
3184                         *exceptionptr =
3185                                 new_internalerror("Unknown ICMD %d during code generation",
3186                                                                   iptr->opc);
3187                         return false;
3188         } /* switch */
3189
3190         } /* for instruction */
3191
3192         } /* if (bptr -> flags >= BBREACHED) */
3193         } /* for basic block */
3194
3195         dseg_createlinenumbertable(cd);
3196
3197         /* generate stubs */
3198
3199         emit_exception_stubs(jd);
3200         emit_patcher_stubs(jd);
3201         emit_replacement_stubs(jd);
3202
3203         codegen_finish(jd);
3204
3205         /* everything's ok */
3206
3207         return true;
3208 }
3209
3210
3211 /* createcompilerstub **********************************************************
3212
3213    Creates a stub routine which calls the compiler.
3214
3215 *******************************************************************************/
3216
3217 #define COMPILERSTUB_DATASIZE    3 * SIZEOF_VOID_P
3218 #define COMPILERSTUB_CODESIZE    4 * 4
3219
3220 #define COMPILERSTUB_SIZE        COMPILERSTUB_DATASIZE + COMPILERSTUB_CODESIZE
3221
3222
3223 u1 *createcompilerstub(methodinfo *m)
3224 {
3225         u1          *s;                     /* memory to hold the stub            */
3226         ptrint      *d;
3227         codeinfo    *code;
3228         codegendata *cd;
3229         s4           dumpsize;
3230
3231         s = CNEW(u1, COMPILERSTUB_SIZE);
3232
3233         /* set data pointer and code pointer */
3234
3235         d = (ptrint *) s;
3236         s = s + COMPILERSTUB_DATASIZE;
3237
3238         /* mark start of dump memory area */
3239
3240         dumpsize = dump_size();
3241
3242         cd = DNEW(codegendata);
3243         cd->mcodeptr = s;
3244
3245         /* Store the codeinfo pointer in the same place as in the
3246            methodheader for compiled methods. */
3247
3248         code = code_codeinfo_new(m);
3249
3250         d[0] = (ptrint) asm_call_jit_compiler;
3251         d[1] = (ptrint) m;
3252         d[2] = (ptrint) code;
3253
3254         M_ALD_INTERN(REG_ITMP1, REG_PV, -2 * SIZEOF_VOID_P);
3255         M_ALD_INTERN(REG_PV, REG_PV, -3 * SIZEOF_VOID_P);
3256         M_MTCTR(REG_PV);
3257         M_RTS;
3258
3259         md_cacheflush((u1 *) d, COMPILERSTUB_SIZE);
3260
3261 #if defined(ENABLE_STATISTICS)
3262         if (opt_stat)
3263                 count_cstub_len += COMPILERSTUB_SIZE;
3264 #endif
3265
3266         /* release dump area */
3267
3268         dump_release(dumpsize);
3269
3270         return s;
3271 }
3272
3273
3274 /* createnativestub ************************************************************
3275
3276    Creates a stub routine which calls a native method.
3277
3278 *******************************************************************************/
3279
3280 u1 *createnativestub(functionptr f, jitdata *jd, methoddesc *nmd)
3281 {
3282         methodinfo   *m;
3283         codeinfo     *code;
3284         codegendata  *cd;
3285         registerdata *rd;
3286         methoddesc   *md;
3287         s4            nativeparams;
3288         s4            i, j;                 /* count variables                    */
3289         s4            t;
3290         s4            s1, s2, disp;
3291         s4            funcdisp;
3292
3293         /* get required compiler data */
3294
3295         m    = jd->m;
3296         code = jd->code;
3297         cd   = jd->cd;
3298         rd   = jd->rd;
3299
3300         /* set some variables */
3301
3302         md = m->parseddesc;
3303         nativeparams = (m->flags & ACC_STATIC) ? 2 : 1;
3304
3305         /* calculate stackframe size */
3306
3307         cd->stackframesize =
3308                 sizeof(stackframeinfo) / SIZEOF_VOID_P +
3309                 sizeof(localref_table) / SIZEOF_VOID_P +
3310                 4 +                             /* 4 stackframeinfo arguments (darwin)*/
3311                 nmd->paramcount * 2 +           /* assume all arguments are doubles   */
3312                 nmd->memuse;
3313
3314         /* keep stack 16-byte aligned */
3315
3316         cd->stackframesize = (cd->stackframesize + 3) & ~3;
3317
3318         /* create method header */
3319
3320         (void) dseg_add_unique_address(cd, code);              /* CodeinfoPointer */
3321         (void) dseg_add_unique_s4(cd, cd->stackframesize * 4); /* FrameSize       */
3322         (void) dseg_add_unique_s4(cd, 0);                      /* IsSync          */
3323         (void) dseg_add_unique_s4(cd, 0);                      /* IsLeaf          */
3324         (void) dseg_add_unique_s4(cd, 0);                      /* IntSave         */
3325         (void) dseg_add_unique_s4(cd, 0);                      /* FltSave         */
3326         (void) dseg_addlinenumbertablesize(cd);
3327         (void) dseg_add_unique_s4(cd, 0);                      /* ExTableSize     */
3328
3329         /* generate code */
3330
3331         M_MFLR(REG_ZERO);
3332         M_AST_INTERN(REG_ZERO, REG_SP, LA_LR_OFFSET);
3333         M_STWU(REG_SP, REG_SP, -(cd->stackframesize * 4));
3334
3335         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
3336                 emit_verbosecall_enter(jd);
3337
3338         /* get function address (this must happen before the stackframeinfo) */
3339
3340         funcdisp = dseg_add_functionptr(cd, f);
3341
3342 #if !defined(WITH_STATIC_CLASSPATH)
3343         if (f == NULL) {
3344                 codegen_addpatchref(cd, PATCHER_resolve_native_function, m, funcdisp);
3345
3346                 if (opt_showdisassemble)
3347                         M_NOP;
3348         }
3349 #endif
3350
3351         /* save integer and float argument registers */
3352
3353         j = 0;
3354
3355         for (i = 0; i < md->paramcount; i++) {
3356                 t = md->paramtypes[i].type;
3357
3358                 if (IS_INT_LNG_TYPE(t)) {
3359                         if (!md->params[i].inmemory) {
3360                                 s1 = md->params[i].regoff;
3361                                 if (IS_2_WORD_TYPE(t)) {
3362                                         M_IST(rd->argintregs[GET_HIGH_REG(s1)], REG_SP, LA_SIZE + 4 * 4 + j * 4);
3363                                         j++;
3364                                         M_IST(rd->argintregs[GET_LOW_REG(s1)], REG_SP, LA_SIZE + 4 * 4 + j * 4);
3365                                 } else {
3366                                         M_IST(rd->argintregs[s1], REG_SP, LA_SIZE + 4 * 4 + j * 4);
3367                                 }
3368                                 j++;
3369                         }
3370                 }
3371         }
3372
3373         for (i = 0; i < md->paramcount; i++) {
3374                 if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
3375                         if (!md->params[i].inmemory) {
3376                                 s1 = md->params[i].regoff;
3377                                 M_DST(rd->argfltregs[s1], REG_SP, LA_SIZE + 4 * 4 + j * 8);
3378                                 j++;
3379                         }
3380                 }
3381         }
3382
3383         /* create native stack info */
3384
3385         M_AADD_IMM(REG_SP, cd->stackframesize * 4, REG_A0);
3386         M_MOV(REG_PV, REG_A1);
3387         M_AADD_IMM(REG_SP, cd->stackframesize * 4, REG_A2);
3388         M_ALD(REG_A3, REG_SP, cd->stackframesize * 4 + LA_LR_OFFSET);
3389         disp = dseg_add_functionptr(cd, codegen_start_native_call);
3390         M_ALD(REG_ITMP1, REG_PV, disp);
3391         M_MTCTR(REG_ITMP1);
3392         M_JSR;
3393
3394         /* restore integer and float argument registers */
3395
3396         j = 0;
3397
3398         for (i = 0; i < md->paramcount; i++) {
3399                 t = md->paramtypes[i].type;
3400
3401                 if (IS_INT_LNG_TYPE(t)) {
3402                         if (!md->params[i].inmemory) {
3403                                 s1 = md->params[i].regoff;
3404
3405                                 if (IS_2_WORD_TYPE(t)) {
3406                                         M_ILD(rd->argintregs[GET_HIGH_REG(s1)], REG_SP, LA_SIZE + 4 * 4 + j * 4);
3407                                         j++;
3408                                         M_ILD(rd->argintregs[GET_LOW_REG(s1)], REG_SP, LA_SIZE + 4 * 4 + j * 4);
3409                                 } else {
3410                                         M_ILD(rd->argintregs[s1], REG_SP, LA_SIZE + 4 * 4 + j * 4);
3411                                 }
3412                                 j++;
3413                         }
3414                 }
3415         }
3416
3417         for (i = 0; i < md->paramcount; i++) {
3418                 if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
3419                         if (!md->params[i].inmemory) {
3420                                 s1 = md->params[i].regoff;
3421                                 M_DLD(rd->argfltregs[s1], REG_SP, LA_SIZE + 4 * 4 + j * 8);
3422                                 j++;
3423                         }
3424                 }
3425         }
3426
3427         /* copy or spill arguments to new locations */
3428
3429         for (i = md->paramcount - 1, j = i + nativeparams; i >= 0; i--, j--) {
3430                 t = md->paramtypes[i].type;
3431
3432                 if (IS_INT_LNG_TYPE(t)) {
3433                         if (!md->params[i].inmemory) {
3434                                 if (IS_2_WORD_TYPE(t))
3435                                         s1 = PACK_REGS(
3436                                                 rd->argintregs[GET_LOW_REG(md->params[i].regoff)],
3437                                             rd->argintregs[GET_HIGH_REG(md->params[i].regoff)]);
3438                                 else
3439                                         s1 = rd->argintregs[md->params[i].regoff];
3440
3441                                 if (!nmd->params[j].inmemory) {
3442                                         if (IS_2_WORD_TYPE(t)) {
3443                                                 s2 = PACK_REGS(
3444                                                    rd->argintregs[GET_LOW_REG(nmd->params[j].regoff)],
3445                                                    rd->argintregs[GET_HIGH_REG(nmd->params[j].regoff)]);
3446                                                 M_LNGMOVE(s1, s2);
3447                                         } else {
3448                                                 s2 = rd->argintregs[nmd->params[j].regoff];
3449                                                 M_INTMOVE(s1, s2);
3450                                         }
3451
3452                                 } else {
3453                                         s2 = nmd->params[j].regoff;
3454                                         if (IS_2_WORD_TYPE(t))
3455                                                 M_LST(s1, REG_SP, s2 * 4);
3456                                         else
3457                                                 M_IST(s1, REG_SP, s2 * 4);
3458                                 }
3459
3460                         } else {
3461                                 s1 = md->params[i].regoff + cd->stackframesize;
3462                                 s2 = nmd->params[j].regoff;
3463
3464                                 M_ILD(REG_ITMP1, REG_SP, s1 * 4);
3465                                 if (IS_2_WORD_TYPE(t))
3466                                         M_ILD(REG_ITMP2, REG_SP, s1 * 4 + 4);
3467
3468                                 M_IST(REG_ITMP1, REG_SP, s2 * 4);
3469                                 if (IS_2_WORD_TYPE(t))
3470                                         M_IST(REG_ITMP2, REG_SP, s2 * 4 + 4);
3471                         }
3472
3473                 } else {
3474                         /* We only copy spilled float arguments, as the float
3475                            argument registers keep unchanged. */
3476
3477                         if (md->params[i].inmemory) {
3478                                 s1 = md->params[i].regoff + cd->stackframesize;
3479                                 s2 = nmd->params[j].regoff;
3480
3481                                 if (IS_2_WORD_TYPE(t)) {
3482                                         M_DLD(REG_FTMP1, REG_SP, s1 * 4);
3483                                         M_DST(REG_FTMP1, REG_SP, s2 * 4);
3484
3485                                 } else {
3486                                         M_FLD(REG_FTMP1, REG_SP, s1 * 4);
3487                                         M_FST(REG_FTMP1, REG_SP, s2 * 4);
3488                                 }
3489                         }
3490                 }
3491         }
3492
3493         /* put class into second argument register */
3494
3495         if (m->flags & ACC_STATIC) {
3496                 disp = dseg_add_address(cd, m->class);
3497                 M_ALD(REG_A1, REG_PV, disp);
3498         }
3499
3500         /* put env into first argument register */
3501
3502         disp = dseg_add_address(cd, _Jv_env);
3503         M_ALD(REG_A0, REG_PV, disp);
3504
3505         /* generate the actual native call */
3506
3507         M_ALD(REG_ITMP3, REG_PV, funcdisp);
3508         M_MTCTR(REG_ITMP3);
3509         M_JSR;
3510
3511         /* print call trace */
3512
3513         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
3514                 emit_verbosecall_exit(jd);
3515
3516         /* save return value */
3517
3518         if (md->returntype.type != TYPE_VOID) {
3519                 if (IS_INT_LNG_TYPE(md->returntype.type)) {
3520                         if (IS_2_WORD_TYPE(md->returntype.type))
3521                                 M_IST(REG_RESULT2, REG_SP, LA_SIZE + 2 * 4);
3522                         M_IST(REG_RESULT, REG_SP, LA_SIZE + 1 * 4);
3523                 }
3524                 else {
3525                         if (IS_2_WORD_TYPE(md->returntype.type))
3526                                 M_DST(REG_FRESULT, REG_SP, LA_SIZE + 1 * 4);
3527                         else
3528                                 M_FST(REG_FRESULT, REG_SP, LA_SIZE + 1 * 4);
3529                 }
3530         }
3531
3532         /* remove native stackframe info */
3533
3534         M_AADD_IMM(REG_SP, cd->stackframesize * 4, REG_A0);
3535         disp = dseg_add_functionptr(cd, codegen_finish_native_call);
3536         M_ALD(REG_ITMP1, REG_PV, disp);
3537         M_MTCTR(REG_ITMP1);
3538         M_JSR;
3539         M_MOV(REG_RESULT, REG_ITMP1_XPTR);
3540
3541         /* restore return value */
3542
3543         if (md->returntype.type != TYPE_VOID) {
3544                 if (IS_INT_LNG_TYPE(md->returntype.type)) {
3545                         if (IS_2_WORD_TYPE(md->returntype.type))
3546                                 M_ILD(REG_RESULT2, REG_SP, LA_SIZE + 2 * 4);
3547                         M_ILD(REG_RESULT, REG_SP, LA_SIZE + 1 * 4);
3548                 }
3549                 else {
3550                         if (IS_2_WORD_TYPE(md->returntype.type))
3551                                 M_DLD(REG_FRESULT, REG_SP, LA_SIZE + 1 * 4);
3552                         else
3553                                 M_FLD(REG_FRESULT, REG_SP, LA_SIZE + 1 * 4);
3554                 }
3555         }
3556
3557         M_ALD(REG_ITMP2_XPC, REG_SP, cd->stackframesize * 4 + LA_LR_OFFSET);
3558         M_MTLR(REG_ITMP2_XPC);
3559         M_LDA(REG_SP, REG_SP, cd->stackframesize * 4); /* remove stackframe       */
3560
3561         /* check for exception */
3562
3563         M_TST(REG_ITMP1_XPTR);
3564         M_BNE(1);                           /* if no exception then return        */
3565
3566         M_RET;
3567
3568         /* handle exception */
3569
3570         M_IADD_IMM(REG_ITMP2_XPC, -4, REG_ITMP2_XPC);  /* exception address       */
3571
3572         disp = dseg_add_functionptr(cd, asm_handle_nat_exception);
3573         M_ALD(REG_ITMP3, REG_PV, disp);
3574         M_MTCTR(REG_ITMP3);
3575         M_RTS;
3576
3577         /* generate patcher stubs */
3578
3579         emit_patcher_stubs(jd);
3580
3581         codegen_finish(jd);
3582
3583         return code->entrypoint;
3584 }
3585
3586
3587 /*
3588  * These are local overrides for various environment variables in Emacs.
3589  * Please do not remove this and leave it at the end of the file, where
3590  * Emacs will automagically detect them.
3591  * ---------------------------------------------------------------------
3592  * Local variables:
3593  * mode: c
3594  * indent-tabs-mode: t
3595  * c-basic-offset: 4
3596  * tab-width: 4
3597  * End:
3598  * vim:noexpandtab:sw=4:ts=4:
3599  */