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 5641 2006-10-03 16:32:15Z edwin $
  35
  36 */
  37
  38
  39 #include "config.h"
  40
  41 #include <assert.h>
  42 #include <stdio.h>
  43 #include <signal.h>
  44
  45 #include "vm/types.h"
  46
  47 #include "md-abi.h"
  48
  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 #if 0
 418                 /* handle replacement points */
 419                 if (bptr->bitflags & BBFLAG_REPLACEMENT) {
 420                         replacementpoint->pc = (u1*)(ptrint)bptr->mpc; /* will be resolved later */
 421
 422                         replacementpoint++;
 423                 }
 424 #endif
 425
 426                 /* generate basicblock profiling code */
 427
 428                 if (JITDATA_HAS_FLAG_INSTRUMENT(jd)) {
 429                         /* count frequency */
 430
 431                         disp = dseg_add_address(cd, code->bbfrequency);
 432                         M_ALD(REG_ITMP2, REG_PV, disp);
 433                         M_ALD(REG_ITMP3, REG_ITMP2, bptr->nr * 4);
 434                         M_IADD_IMM(REG_ITMP3, 1, REG_ITMP3);
 435                         M_AST(REG_ITMP3, REG_ITMP2, bptr->nr * 4);
 436
 437                         /* if this is an exception handler, start profiling again */
 438
 439 /*                      if (bptr->type == BBTYPE_EXH) */
 440 /*                              PROFILE_CYCLE_START; */
 441                 }
 442
 443                 /* copy interface registers to their destination */
 444
 445                 len = bptr->indepth;
 446                 MCODECHECK(64+len);
 447
 448 #if defined(ENABLE_LSRA)
 449                 if (opt_lsra) {
 450                         while (src != NULL) {
 451                                 len--;
 452                                 if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 453                                         /* d = reg_of_var(m, src, REG_ITMP1); */
 454                                         if (!IS_INMEMORY(src->flags))
 455                                                 d = src->vv.regoff;
 456                                         else
 457                                                 d = REG_ITMP1;
 458                                         M_INTMOVE(REG_ITMP1, d);
 459                                         emit_store(jd, NULL, src, d);
 460                                 }
 461                                 src = src->prev;
 462                         }
 463                 } else {
 464 #endif
 465                 while (len > 0) {
 466                         len--;
 467                         var = VAR(bptr->invars[len]);
 468                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 469                                 d = codegen_reg_of_var(0, var, REG_ITMP1);
 470                                 M_INTMOVE(REG_ITMP1, d);
 471                                 emit_store(jd, NULL, var, d);
 472                         }
 473                         else {
 474                                 assert((var->flags & INOUT));
 475                         }
 476                 }
 477
 478 #if defined(ENABLE_LSRA)
 479                 }
 480 #endif
 481                 /* walk through all instructions */
 482
 483                 len = bptr->icount;
 484                 currentline = 0;
 485
 486                 for (iptr = bptr->iinstr; len > 0; len--, iptr++) {
 487                         if (iptr->line != currentline) {
 488                                 dseg_addlinenumber(cd, iptr->line);
 489                                 currentline = iptr->line;
 490                         }
 491
 492                         MCODECHECK(64);   /* an instruction usually needs < 64 words      */
 493
 494                         switch (iptr->opc) {
 495                         case ICMD_NOP:    /* ...  ==> ...                                 */
 496                         case ICMD_INLINE_START:
 497                         case ICMD_INLINE_END:
 498                                 break;
 499
 500                 case ICMD_CHECKNULL:  /* ..., objectref  ==> ..., objectref           */
 501
 502                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 503                         M_TST(s1);
 504                         M_BEQ(0);
 505                         codegen_add_nullpointerexception_ref(cd);
 506                         break;
 507
 508                 /* constant operations ************************************************/
 509
 510                 case ICMD_ICONST:     /* ...  ==> ..., constant                       */
 511
 512                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 513                         ICONST(d, iptr->sx.val.i);
 514                         emit_store_dst(jd, iptr, d);
 515                         break;
 516
 517                 case ICMD_LCONST:     /* ...  ==> ..., constant                       */
 518
 519                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 520                         LCONST(d, iptr->sx.val.l);
 521                         emit_store_dst(jd, iptr, d);
 522                         break;
 523
 524                 case ICMD_FCONST:     /* ...  ==> ..., constant                       */
 525
 526                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 527                         a = dseg_add_float(cd, iptr->sx.val.f);
 528                         M_FLD(d, REG_PV, a);
 529                         emit_store_dst(jd, iptr, d);
 530                         break;
 531
 532                 case ICMD_DCONST:     /* ...  ==> ..., constant                       */
 533
 534                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 535                         a = dseg_add_double(cd, iptr->sx.val.d);
 536                         M_DLD(d, REG_PV, a);
 537                         emit_store_dst(jd, iptr, d);
 538                         break;
 539
 540                 case ICMD_ACONST:     /* ...  ==> ..., constant                       */
 541
 542                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 543
 544                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
 545                                 constant_classref *cr = iptr->sx.val.c.ref;;
 546
 547                                 disp = dseg_add_unique_address(cd, cr);
 548
 549                                 codegen_addpatchref(cd, PATCHER_resolve_classref_to_classinfo,
 550                                                                         cr, disp);
 551
 552                                 if (opt_showdisassemble)
 553                                         M_NOP;
 554                         }
 555                         else
 556                                 disp = dseg_add_address(cd, iptr->sx.val.anyptr);
 557
 558                         M_ALD(d, REG_PV, disp);
 559                         emit_store_dst(jd, iptr, d);
 560                         break;
 561
 562
 563                 /* load/store/copy/move operations ************************************/
 564
 565                 case ICMD_ILOAD:      /* ...  ==> ..., content of local variable      */
 566                 case ICMD_ALOAD:      /* s1 = local variable                          */
 567                 case ICMD_LLOAD:
 568                 case ICMD_FLOAD:
 569                 case ICMD_DLOAD:
 570                 case ICMD_ISTORE:     /* ..., value  ==> ...                          */
 571                 case ICMD_ASTORE:     /* dst = local variable                         */
 572                 case ICMD_LSTORE:
 573                 case ICMD_FSTORE:
 574                 case ICMD_DSTORE:
 575                 case ICMD_COPY:
 576                 case ICMD_MOVE:
 577
 578                         emit_copy(jd, iptr, VAROP(iptr->s1), VAROP(iptr->dst));
 579                         break;
 580
 581
 582                 /* pop operations *****************************************************/
 583
 584                 /* attention: double and longs are only one entry in CACAO ICMDs      */
 585
 586                 case ICMD_POP:        /* ..., value  ==> ...                          */
 587                 case ICMD_POP2:       /* ..., value, value  ==> ...                   */
 588
 589                         break;
 590
 591
 592                 /* integer operations *************************************************/
 593
 594                 case ICMD_INEG:       /* ..., value  ==> ..., - value                 */
 595
 596                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 597                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 598                         M_NEG(s1, d);
 599                         emit_store_dst(jd, iptr, d);
 600                         break;
 601
 602                 case ICMD_LNEG:       /* ..., value  ==> ..., - value                 */
 603
 604                         s1 = emit_load_s1(jd, iptr, REG_ITMP12_PACKED);
 605                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 606                         M_SUBFIC(GET_LOW_REG(s1), 0, GET_LOW_REG(d));
 607                         M_SUBFZE(GET_HIGH_REG(s1), GET_HIGH_REG(d));
 608                         emit_store_dst(jd, iptr, d);
 609                         break;
 610
 611                 case ICMD_I2L:        /* ..., value  ==> ..., value                   */
 612
 613                         s1 = emit_load_s1(jd, iptr, REG_ITMP2);
 614                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 615                         M_INTMOVE(s1, GET_LOW_REG(d));
 616                         M_SRA_IMM(GET_LOW_REG(d), 31, GET_HIGH_REG(d));
 617                         emit_store_dst(jd, iptr, d);
 618                         break;
 619
 620                 case ICMD_L2I:        /* ..., value  ==> ..., value                   */
 621
 622                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP2);
 623                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 624                         M_INTMOVE(s1, d);
 625                         emit_store_dst(jd, iptr, d);
 626                         break;
 627
 628                 case ICMD_INT2BYTE:   /* ..., value  ==> ..., value                   */
 629
 630                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 631                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 632                         M_BSEXT(s1, d);
 633                         emit_store_dst(jd, iptr, d);
 634                         break;
 635
 636                 case ICMD_INT2CHAR:   /* ..., value  ==> ..., value                   */
 637
 638                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 639                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 640                         M_CZEXT(s1, d);
 641                         emit_store_dst(jd, iptr, d);
 642                         break;
 643
 644                 case ICMD_INT2SHORT:  /* ..., value  ==> ..., value                   */
 645
 646                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 647                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 648                         M_SSEXT(s1, d);
 649                         emit_store_dst(jd, iptr, d);
 650                         break;
 651
 652
 653                 case ICMD_IADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 654
 655                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 656                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 657                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 658                         M_IADD(s1, s2, d);
 659                         emit_store_dst(jd, iptr, d);
 660                         break;
 661
 662                 case ICMD_IADDCONST:  /* ..., value  ==> ..., value + constant        */
 663                                       /* sx.val.i = constant                          */
 664
 665                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 666                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 667                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767)) {
 668                                 M_IADD_IMM(s1, iptr->sx.val.i, d);
 669                         } else {
 670                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 671                                 M_IADD(s1, REG_ITMP2, d);
 672                         }
 673                         emit_store_dst(jd, iptr, d);
 674                         break;
 675
 676                 case ICMD_LADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 677
 678                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 679                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
 680                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 681                         M_ADDC(s1, s2, GET_LOW_REG(d));
 682                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
 683                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP3);/* don't use REG_ITMP2*/
 684                         M_ADDE(s1, s2, GET_HIGH_REG(d));
 685                         emit_store_dst(jd, iptr, d);
 686                         break;
 687
 688                 case ICMD_LADDCONST:  /* ..., value  ==> ..., value + constant        */
 689                                       /* sx.val.l = constant                          */
 690
 691                         s3 = iptr->sx.val.l & 0xffffffff;
 692                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 693                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 694                         if ((s3 >= -32768) && (s3 <= 32767))
 695                                 M_ADDIC(s1, s3, GET_LOW_REG(d));
 696                         else {
 697                                 ICONST(REG_ITMP2, s3);
 698                                 M_ADDC(s1, REG_ITMP2, GET_LOW_REG(d));
 699                         }
 700                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
 701                         s3 = iptr->sx.val.l >> 32;
 702                         if (s3 == -1)
 703                                 M_ADDME(s1, GET_HIGH_REG(d));
 704                         else if (s3 == 0)
 705                                 M_ADDZE(s1, GET_HIGH_REG(d));
 706                         else {
 707                                 ICONST(REG_ITMP3, s3);                 /* don't use REG_ITMP2 */
 708                                 M_ADDE(s1, REG_ITMP3, GET_HIGH_REG(d));
 709                         }
 710                         emit_store_dst(jd, iptr, d);
 711                         break;
 712
 713                 case ICMD_ISUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 714
 715                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 716                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 717                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 718                         M_ISUB(s1, s2, d);
 719                         emit_store_dst(jd, iptr, d);
 720                         break;
 721
 722                 case ICMD_ISUBCONST:  /* ..., value  ==> ..., value + constant        */
 723                                       /* sx.val.i = constant                          */
 724
 725                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 726                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 727                         if ((iptr->sx.val.i >= -32767) && (iptr->sx.val.i <= 32768))
 728                                 M_IADD_IMM(s1, -iptr->sx.val.i, d);
 729                         else {
 730                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 731                                 M_ISUB(s1, REG_ITMP2, d);
 732                         }
 733                         emit_store_dst(jd, iptr, d);
 734                         break;
 735
 736                 case ICMD_LSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 737
 738                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 739                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
 740                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 741                         M_SUBC(s1, s2, GET_LOW_REG(d));
 742                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
 743                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP3);/* don't use REG_ITMP2*/
 744                         M_SUBE(s1, s2, GET_HIGH_REG(d));
 745                         emit_store_dst(jd, iptr, d);
 746                         break;
 747
 748                 case ICMD_LSUBCONST:  /* ..., value  ==> ..., value - constant        */
 749                                       /* sx.val.l = constant                          */
 750
 751                         s3 = (-iptr->sx.val.l) & 0xffffffff;
 752                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 753                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 754                         if ((s3 >= -32768) && (s3 <= 32767)) {
 755                                 M_ADDIC(s1, s3, GET_LOW_REG(d));
 756                         } else {
 757                                 ICONST(REG_ITMP2, s3);
 758                                 M_ADDC(s1, REG_ITMP2, GET_LOW_REG(d));
 759                         }
 760                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
 761                         s3 = (-iptr->sx.val.l) >> 32;
 762                         if (s3 == -1)
 763                                 M_ADDME(s1, GET_HIGH_REG(d));
 764                         else if (s3 == 0)
 765                                 M_ADDZE(s1, GET_HIGH_REG(d));
 766                         else {
 767                                 ICONST(REG_ITMP3, s3);                 /* don't use REG_ITMP2 */
 768                                 M_ADDE(s1, REG_ITMP3, GET_HIGH_REG(d));
 769                         }
 770                         emit_store_dst(jd, iptr, d);
 771                         break;
 772
 773                 case ICMD_IDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 774
 775                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 776                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 777                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 778                         M_TST(s2);
 779                         M_BEQ(0);
 780                         codegen_add_arithmeticexception_ref(cd);
 781                         M_LDAH(REG_ITMP3, REG_ZERO, 0x8000);
 782                         M_CMP(REG_ITMP3, s1);
 783                         M_BNE(3 + (s1 != d));
 784                         M_CMPI(s2, -1);
 785                         M_BNE(1 + (s1 != d));
 786                         M_INTMOVE(s1, d);
 787                         M_BR(1);
 788                         M_IDIV(s1, s2, d);
 789                         emit_store_dst(jd, iptr, d);
 790                         break;
 791
 792                 case ICMD_IREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 793
 794                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 795                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 796                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 797                         M_TST(s2);
 798                         M_BEQ(0);
 799                         codegen_add_arithmeticexception_ref(cd);
 800                         M_LDAH(REG_ITMP3, REG_ZERO, 0x8000);
 801                         M_CMP(REG_ITMP3, s1);
 802                         M_BNE(4);
 803                         M_CMPI(s2, -1);
 804                         M_BNE(2);
 805                         M_CLR(d);
 806                         M_BR(3);
 807                         M_IDIV(s1, s2, REG_ITMP3);
 808                         M_IMUL(REG_ITMP3, s2, REG_ITMP3);
 809                         M_ISUB(s1, REG_ITMP3, d);
 810                         emit_store_dst(jd, iptr, d);
 811                         break;
 812
 813                 case ICMD_LDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 814                 case ICMD_LREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 815
 816                         bte = iptr->sx.s23.s3.bte;
 817                         md  = bte->md;
 818
 819                         s2 = emit_load_s2(jd, iptr, REG_ITMP12_PACKED);
 820                         M_OR_TST(GET_HIGH_REG(s2), GET_LOW_REG(s2), REG_ITMP3);
 821                         M_BEQ(0);
 822                         codegen_add_arithmeticexception_ref(cd);
 823
 824                         disp = dseg_add_functionptr(cd, bte->fp);
 825                         M_ALD(REG_ITMP3, REG_PV, disp);
 826                         M_MTCTR(REG_ITMP3);
 827
 828                         s3 = PACK_REGS(rd->argintregs[GET_LOW_REG(md->params[1].regoff)],
 829                                                    rd->argintregs[GET_HIGH_REG(md->params[1].regoff)]);
 830                         M_LNGMOVE(s2, s3);
 831
 832                         s1 = emit_load_s1(jd, iptr, REG_ITMP12_PACKED);
 833                         s3 = PACK_REGS(rd->argintregs[GET_LOW_REG(md->params[0].regoff)],
 834                                                    rd->argintregs[GET_HIGH_REG(md->params[0].regoff)]);
 835                         M_LNGMOVE(s1, s3);
 836
 837                         M_JSR;
 838
 839                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
 840                         M_LNGMOVE(REG_RESULT_PACKED, d);
 841                         emit_store_dst(jd, iptr, d);
 842                         break;
 843
 844                 case ICMD_IMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 845
 846                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 847                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 848                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 849                         M_IMUL(s1, s2, d);
 850                         emit_store_dst(jd, iptr, d);
 851                         break;
 852
 853                 case ICMD_IMULCONST:  /* ..., value  ==> ..., value * constant        */
 854                                       /* sx.val.i = constant                          */
 855
 856                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 857                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 858                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767))
 859                                 M_IMUL_IMM(s1, iptr->sx.val.i, d);
 860                         else {
 861                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 862                                 M_IMUL(s1, REG_ITMP3, d);
 863                         }
 864                         emit_store_dst(jd, iptr, d);
 865                         break;
 866
 867                 case ICMD_IDIVPOW2:   /* ..., value  ==> ..., value << constant       */
 868
 869                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 870                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 871                         M_SRA_IMM(s1, iptr->sx.val.i, d);
 872                         M_ADDZE(d, d);
 873                         emit_store_dst(jd, iptr, d);
 874                         break;
 875
 876                 case ICMD_ISHL:       /* ..., val1, val2  ==> ..., val1 << val2       */
 877
 878                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 879                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 880                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 881                         M_AND_IMM(s2, 0x1f, REG_ITMP3);
 882                         M_SLL(s1, REG_ITMP3, d);
 883                         emit_store_dst(jd, iptr, d);
 884                         break;
 885
 886                 case ICMD_ISHLCONST:  /* ..., value  ==> ..., value << constant       */
 887                                       /* sx.val.i = constant                          */
 888
 889                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 890                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 891                         M_SLL_IMM(s1, iptr->sx.val.i & 0x1f, d);
 892                         emit_store_dst(jd, iptr, d);
 893                         break;
 894
 895                 case ICMD_ISHR:       /* ..., val1, val2  ==> ..., val1 >> val2       */
 896
 897                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 898                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 899                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 900                         M_AND_IMM(s2, 0x1f, REG_ITMP3);
 901                         M_SRA(s1, REG_ITMP3, d);
 902                         emit_store_dst(jd, iptr, d);
 903                         break;
 904
 905                 case ICMD_ISHRCONST:  /* ..., value  ==> ..., value >> constant       */
 906                                       /* sx.val.i = constant                          */
 907
 908                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 909                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 910                         M_SRA_IMM(s1, iptr->sx.val.i & 0x1f, d);
 911                         emit_store_dst(jd, iptr, d);
 912                         break;
 913
 914                 case ICMD_IUSHR:      /* ..., val1, val2  ==> ..., val1 >>> val2      */
 915
 916                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 917                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 918                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 919                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 920                         M_SRL(s1, REG_ITMP2, d);
 921                         emit_store_dst(jd, iptr, d);
 922                         break;
 923
 924                 case ICMD_IUSHRCONST: /* ..., value  ==> ..., value >>> constant      */
 925                                       /* sx.val.i = constant                          */
 926
 927                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 928                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 929                         if (iptr->sx.val.i & 0x1f)
 930                                 M_SRL_IMM(s1, iptr->sx.val.i & 0x1f, d);
 931                         else {
 932                                 M_INTMOVE(s1, d);
 933                         }
 934                         emit_store_dst(jd, iptr, d);
 935                         break;
 936
 937                 case ICMD_IAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 938
 939                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 940                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 941                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 942                         M_AND(s1, s2, d);
 943                         emit_store_dst(jd, iptr, d);
 944                         break;
 945
 946                 case ICMD_IANDCONST:  /* ..., value  ==> ..., value & constant        */
 947                                       /* sx.val.i = constant                          */
 948
 949                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 950                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 951                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
 952                                 M_AND_IMM(s1, iptr->sx.val.i, d);
 953                         /*
 954                         else if (iptr->sx.val.i == 0xffffff) {
 955                                 M_RLWINM(s1, 0, 8, 31, d);
 956                                 }
 957                         */
 958                         else {
 959                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 960                                 M_AND(s1, REG_ITMP3, d);
 961                         }
 962                         emit_store_dst(jd, iptr, d);
 963                         break;
 964
 965                 case ICMD_LAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 966
 967                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 968                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
 969                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 970                         M_AND(s1, s2, GET_LOW_REG(d));
 971                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
 972                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP3);/* don't use REG_ITMP2*/
 973                         M_AND(s1, s2, GET_HIGH_REG(d));
 974                         emit_store_dst(jd, iptr, d);
 975                         break;
 976
 977                 case ICMD_LANDCONST:  /* ..., value  ==> ..., value & constant        */
 978                                       /* sx.val.l = constant                          */
 979
 980                         s3 = iptr->sx.val.l & 0xffffffff;
 981                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
 982                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
 983                         if ((s3 >= 0) && (s3 <= 65535))
 984                                 M_AND_IMM(s1, s3, GET_LOW_REG(d));
 985                         else {
 986                                 ICONST(REG_ITMP3, s3);
 987                                 M_AND(s1, REG_ITMP3, GET_LOW_REG(d));
 988                         }
 989                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
 990                         s3 = iptr->sx.val.l >> 32;
 991                         if ((s3 >= 0) && (s3 <= 65535))
 992                                 M_AND_IMM(s1, s3, GET_HIGH_REG(d));
 993                         else {
 994                                 ICONST(REG_ITMP3, s3);                 /* don't use REG_ITMP2 */
 995                                 M_AND(s1, REG_ITMP3, GET_HIGH_REG(d));
 996                         }
 997                         emit_store_dst(jd, iptr, d);
 998                         break;
 999
1000                 case ICMD_IREMPOW2:   /* ..., value  ==> ..., value % constant        */
1001                                       /* sx.val.i = constant                          */
1002
1003                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1004                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1005                         M_MOV(s1, REG_ITMP2);
1006                         M_CMPI(s1, 0);
1007                         M_BGE(1 + 2*(iptr->sx.val.i >= 32768));
1008                         if (iptr->sx.val.i >= 32768) {
1009                                 M_ADDIS(REG_ZERO, iptr->sx.val.i >> 16, REG_ITMP2);
1010                                 M_OR_IMM(REG_ITMP2, iptr->sx.val.i, REG_ITMP2);
1011                                 M_IADD(s1, REG_ITMP2, REG_ITMP2);
1012                         }
1013                         else {
1014                                 M_IADD_IMM(s1, iptr->sx.val.i, REG_ITMP2);
1015                         }
1016                         {
1017                                 int b=0, m = iptr->sx.val.i;
1018                                 while (m >>= 1)
1019                                         ++b;
1020                                 M_RLWINM(REG_ITMP2, 0, 0, 30-b, REG_ITMP2);
1021                         }
1022                         M_ISUB(s1, REG_ITMP2, d);
1023                         emit_store_dst(jd, iptr, d);
1024                         break;
1025
1026                 case ICMD_IOR:        /* ..., val1, val2  ==> ..., val1 | val2        */
1027
1028                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1029                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1030                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1031                         M_OR(s1, s2, d);
1032                         emit_store_dst(jd, iptr, d);
1033                         break;
1034
1035                 case ICMD_IORCONST:   /* ..., value  ==> ..., value | constant        */
1036                                       /* sx.val.i = constant                          */
1037
1038                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1039                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1040                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
1041                                 M_OR_IMM(s1, iptr->sx.val.i, d);
1042                         else {
1043                                 ICONST(REG_ITMP3, iptr->sx.val.i);
1044                                 M_OR(s1, REG_ITMP3, d);
1045                         }
1046                         emit_store_dst(jd, iptr, d);
1047                         break;
1048
1049                 case ICMD_LOR:       /* ..., val1, val2  ==> ..., val1 | val2        */
1050
1051                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1052                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1053                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1054                         M_OR(s1, s2, GET_LOW_REG(d));
1055                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1056                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP3);/* don't use REG_ITMP2*/
1057                         M_OR(s1, s2, GET_HIGH_REG(d));
1058                         emit_store_dst(jd, iptr, d);
1059                         break;
1060
1061                 case ICMD_LORCONST:   /* ..., value  ==> ..., value | constant        */
1062                                       /* sx.val.l = constant                          */
1063
1064                         s3 = iptr->sx.val.l & 0xffffffff;
1065                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1066                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1067                         if ((s3 >= 0) && (s3 <= 65535))
1068                                 M_OR_IMM(s1, s3, GET_LOW_REG(d));
1069                         else {
1070                                 ICONST(REG_ITMP3, s3);
1071                                 M_OR(s1, REG_ITMP3, GET_LOW_REG(d));
1072                         }
1073                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1074                         s3 = iptr->sx.val.l >> 32;
1075                         if ((s3 >= 0) && (s3 <= 65535))
1076                                 M_OR_IMM(s1, s3, GET_HIGH_REG(d));
1077                         else {
1078                                 ICONST(REG_ITMP3, s3);                 /* don't use REG_ITMP2 */
1079                                 M_OR(s1, REG_ITMP3, GET_HIGH_REG(d));
1080                         }
1081                         emit_store_dst(jd, iptr, d);
1082                         break;
1083
1084                 case ICMD_IXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
1085
1086                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1087                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1088                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1089                         M_XOR(s1, s2, d);
1090                         emit_store_dst(jd, iptr, d);
1091                         break;
1092
1093                 case ICMD_IXORCONST:  /* ..., value  ==> ..., value ^ constant        */
1094                                       /* sx.val.i = constant                          */
1095
1096                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1097                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1098                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
1099                                 M_XOR_IMM(s1, iptr->sx.val.i, d);
1100                         else {
1101                                 ICONST(REG_ITMP3, iptr->sx.val.i);
1102                                 M_XOR(s1, REG_ITMP3, d);
1103                         }
1104                         emit_store_dst(jd, iptr, d);
1105                         break;
1106
1107                 case ICMD_LXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
1108
1109                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1110                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1111                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1112                         M_XOR(s1, s2, GET_LOW_REG(d));
1113                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1114                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP3);/* don't use REG_ITMP2*/
1115                         M_XOR(s1, s2, GET_HIGH_REG(d));
1116                         emit_store_dst(jd, iptr, d);
1117                         break;
1118
1119                 case ICMD_LXORCONST:  /* ..., value  ==> ..., value ^ constant        */
1120                                       /* sx.val.l = constant                          */
1121
1122                         s3 = iptr->sx.val.l & 0xffffffff;
1123                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
1124                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1125                         if ((s3 >= 0) && (s3 <= 65535))
1126                                 M_XOR_IMM(s1, s3, GET_LOW_REG(d));
1127                         else {
1128                                 ICONST(REG_ITMP3, s3);
1129                                 M_XOR(s1, REG_ITMP3, GET_LOW_REG(d));
1130                         }
1131                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
1132                         s3 = iptr->sx.val.l >> 32;
1133                         if ((s3 >= 0) && (s3 <= 65535))
1134                                 M_XOR_IMM(s1, s3, GET_HIGH_REG(d));
1135                         else {
1136                                 ICONST(REG_ITMP3, s3);                 /* don't use REG_ITMP2 */
1137                                 M_XOR(s1, REG_ITMP3, GET_HIGH_REG(d));
1138                         }
1139                         emit_store_dst(jd, iptr, d);
1140                         break;
1141
1142                 case ICMD_LCMP:       /* ..., val1, val2  ==> ..., val1 cmp val2      */
1143                         /*******************************************************************
1144                 TODO: CHANGE THIS TO A VERSION THAT WORKS !!!
1145                         *******************************************************************/
1146                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP3);
1147                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
1148                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1149                         {
1150                                 int tempreg = false;
1151                                 int dreg;
1152                                 u1  *br1;
1153
1154                                 var1 = VAROP(iptr->s1);
1155                                 var2 = VAROP(iptr->sx.s23.s2);
1156
1157                                 if (IS_INMEMORY(var1->flags)) {
1158                                         tempreg = tempreg || (d == REG_ITMP3) || (d == REG_ITMP2);
1159                                 } else {
1160                                         tempreg = tempreg || (d == GET_HIGH_REG(var1->vv.regoff))
1161                                                         || (d == GET_LOW_REG(var1->vv.regoff));
1162                                 }
1163                                 if (IS_INMEMORY(var2->flags)) {
1164                                         tempreg = tempreg || (d == REG_ITMP3) || (d == REG_ITMP2);
1165                                 } else {
1166                                         tempreg = tempreg || (d == GET_HIGH_REG(var2->vv.regoff))
1167                                  || (d == GET_LOW_REG(var2->vv.regoff));
1168                                 }
1169
1170                                 dreg = tempreg ? REG_ITMP1 : d;
1171                                 M_IADD_IMM(REG_ZERO, 1, dreg);
1172                                 M_CMP(s1, s2);
1173                                 M_BGT(0);
1174                                 br1 = cd->mcodeptr;
1175                                 M_BLT(0);
1176                                 s1 = emit_load_s1_low(jd, iptr, REG_ITMP3);
1177                                 s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
1178                                 M_CMPU(s1, s2);
1179                                 M_BGT(3);
1180                                 M_BEQ(1);
1181                                 M_IADD_IMM(dreg, -1, dreg);
1182                                 M_IADD_IMM(dreg, -1, dreg);
1183                                 gen_resolvebranch(br1, br1, cd->mcodeptr);
1184                                 gen_resolvebranch(br1 + 1 * 4, br1 + 1 * 4, cd->mcodeptr - 2 * 4);
1185                                 M_INTMOVE(dreg, d);
1186                         }
1187                         emit_store_dst(jd, iptr, d);
1188                         break;
1189
1190                 case ICMD_IINC:       /* ..., value  ==> ..., value + constant        */
1191                                       /* s1.localindex = variable, sx.val.i = constant*/
1192
1193                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1194                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1195
1196                         {
1197                                 u4 m = iptr->sx.val.i;
1198                                 if (m & 0x8000)
1199                                         m += 65536;
1200                                 if (m & 0xffff0000)
1201                                         M_ADDIS(s1, m >> 16, d);
1202                                 if (m & 0xffff)
1203                                         M_IADD_IMM(s1, m & 0xffff, d);
1204                         }
1205                         emit_store_dst(jd, iptr, d);
1206                         break;
1207
1208
1209                 /* floating operations ************************************************/
1210
1211                 case ICMD_FNEG:       /* ..., value  ==> ..., - value                 */
1212
1213                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1214                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1215                         M_FMOVN(s1, d);
1216                         emit_store_dst(jd, iptr, d);
1217                         break;
1218
1219                 case ICMD_DNEG:       /* ..., value  ==> ..., - value                 */
1220
1221                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1222                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1223                         M_FMOVN(s1, d);
1224                         emit_store_dst(jd, iptr, d);
1225                         break;
1226
1227                 case ICMD_FADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
1228
1229                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1230                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1231                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1232                         M_FADD(s1, s2, d);
1233                         emit_store_dst(jd, iptr, d);
1234                         break;
1235
1236                 case ICMD_DADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
1237
1238                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1239                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1240                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1241                         M_DADD(s1, s2, d);
1242                         emit_store_dst(jd, iptr, d);
1243                         break;
1244
1245                 case ICMD_FSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
1246
1247                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1248                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1249                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1250                         M_FSUB(s1, s2, d);
1251                         emit_store_dst(jd, iptr, d);
1252                         break;
1253
1254                 case ICMD_DSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
1255
1256                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1257                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1258                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1259                         M_DSUB(s1, s2, d);
1260                         emit_store_dst(jd, iptr, d);
1261                         break;
1262
1263                 case ICMD_FMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1264
1265                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1266                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1267                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1268                         M_FMUL(s1, s2, d);
1269                         emit_store_dst(jd, iptr, d);
1270                         break;
1271
1272                 case ICMD_DMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1273
1274                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1275                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1276                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1277                         M_DMUL(s1, s2, d);
1278                         emit_store_dst(jd, iptr, d);
1279                         break;
1280
1281                 case ICMD_FDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1282
1283                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1284                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1285                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1286                         M_FDIV(s1, s2, d);
1287                         emit_store_dst(jd, iptr, d);
1288                         break;
1289
1290                 case ICMD_DDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1291
1292                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1293                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1294                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1295                         M_DDIV(s1, s2, d);
1296                         emit_store_dst(jd, iptr, d);
1297                         break;
1298
1299                 case ICMD_F2I:       /* ..., value  ==> ..., (int) value              */
1300                 case ICMD_D2I:
1301
1302                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1303                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1304                         M_CLR(d);
1305                         disp = dseg_add_float(cd, 0.0);
1306                         M_FLD(REG_FTMP2, REG_PV, disp);
1307                         M_FCMPU(s1, REG_FTMP2);
1308                         M_BNAN(4);
1309                         disp = dseg_add_unique_s4(cd, 0);
1310                         M_CVTDL_C(s1, REG_FTMP1);
1311                         M_LDA(REG_ITMP1, REG_PV, disp);
1312                         M_STFIWX(REG_FTMP1, 0, REG_ITMP1);
1313                         M_ILD(d, REG_PV, disp);
1314                         emit_store_dst(jd, iptr, d);
1315                         break;
1316
1317                 case ICMD_F2D:       /* ..., value  ==> ..., (double) value           */
1318
1319                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1320                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1321                         M_FLTMOVE(s1, d);
1322                         emit_store_dst(jd, iptr, d);
1323                         break;
1324
1325                 case ICMD_D2F:       /* ..., value  ==> ..., (double) value           */
1326
1327                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1328                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1329                         M_CVTDF(s1, d);
1330                         emit_store_dst(jd, iptr, d);
1331                         break;
1332
1333                 case ICMD_FCMPL:      /* ..., val1, val2  ==> ..., val1 fcmpg val2    */
1334                 case ICMD_DCMPL:      /* == => 0, < => 1, > => -1                     */
1335
1336
1337                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1338                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1339                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1340                         M_FCMPU(s2, s1);
1341                         M_IADD_IMM(REG_ZERO, -1, d);
1342                         M_BNAN(4);
1343                         M_BGT(3);
1344                         M_IADD_IMM(REG_ZERO, 0, d);
1345                         M_BGE(1);
1346                         M_IADD_IMM(REG_ZERO, 1, d);
1347                         emit_store_dst(jd, iptr, d);
1348                         break;
1349
1350                 case ICMD_FCMPG:      /* ..., val1, val2  ==> ..., val1 fcmpl val2    */
1351                 case ICMD_DCMPG:      /* == => 0, < => 1, > => -1                     */
1352
1353                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1354                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1355                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1356                         M_FCMPU(s1, s2);
1357                         M_IADD_IMM(REG_ZERO, 1, d);
1358                         M_BNAN(4);
1359                         M_BGT(3);
1360                         M_IADD_IMM(REG_ZERO, 0, d);
1361                         M_BGE(1);
1362                         M_IADD_IMM(REG_ZERO, -1, d);
1363                         emit_store_dst(jd, iptr, d);
1364                         break;
1365
1366                 case ICMD_IF_FCMPEQ:    /* ..., value, value ==> ...                  */
1367                 case ICMD_IF_DCMPEQ:
1368
1369                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1370                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1371                         M_FCMPU(s1, s2);
1372                         M_BNAN(1);
1373                         M_BEQ(0);
1374                         codegen_addreference(cd, iptr->dst.block);
1375                         break;
1376
1377                 case ICMD_IF_FCMPNE:    /* ..., value, value ==> ...                  */
1378                 case ICMD_IF_DCMPNE:
1379
1380                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1381                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1382                         M_FCMPU(s1, s2);
1383                         M_BNAN(0);
1384                         codegen_addreference(cd, iptr->dst.block);
1385                         M_BNE(0);
1386                         codegen_addreference(cd, iptr->dst.block);
1387                         break;
1388
1389
1390                 case ICMD_IF_FCMPL_LT:  /* ..., value, value ==> ...                  */
1391                 case ICMD_IF_DCMPL_LT:
1392
1393                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1394                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1395                         M_FCMPU(s1, s2);
1396                         M_BNAN(0);
1397                         codegen_addreference(cd, iptr->dst.block);
1398                         M_BLT(0);
1399                         codegen_addreference(cd, iptr->dst.block);
1400                         break;
1401
1402                 case ICMD_IF_FCMPL_GT:  /* ..., value, value ==> ...                  */
1403                 case ICMD_IF_DCMPL_GT:
1404
1405                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1406                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1407                         M_FCMPU(s1, s2);
1408                         M_BNAN(1);
1409                         M_BGT(0);
1410                         codegen_addreference(cd, iptr->dst.block);
1411                         break;
1412
1413                 case ICMD_IF_FCMPL_LE:  /* ..., value, value ==> ...                  */
1414                 case ICMD_IF_DCMPL_LE:
1415
1416                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1417                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1418                         M_FCMPU(s1, s2);
1419                         M_BNAN(0);
1420                         codegen_addreference(cd, iptr->dst.block);
1421                         M_BLE(0);
1422                         codegen_addreference(cd, iptr->dst.block);
1423                         break;
1424
1425                 case ICMD_IF_FCMPL_GE:  /* ..., value, value ==> ...                  */
1426                 case ICMD_IF_DCMPL_GE:
1427
1428                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1429                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1430                         M_FCMPU(s1, s2);
1431                         M_BNAN(1);
1432                         M_BGE(0);
1433                         codegen_addreference(cd, iptr->dst.block);
1434                         break;
1435
1436                 case ICMD_IF_FCMPG_LT:  /* ..., value, value ==> ...                  */
1437                 case ICMD_IF_DCMPG_LT:
1438
1439                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1440                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1441                         M_FCMPU(s1, s2);
1442                         M_BNAN(1);
1443                         M_BLT(0);
1444                         codegen_addreference(cd, iptr->dst.block);
1445                         break;
1446
1447                 case ICMD_IF_FCMPG_GT:  /* ..., value, value ==> ...                  */
1448                 case ICMD_IF_DCMPG_GT:
1449
1450                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1451                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1452                         M_FCMPU(s1, s2);
1453                         M_BNAN(0);
1454                         codegen_addreference(cd, iptr->dst.block);
1455                         M_BGT(0);
1456                         codegen_addreference(cd, iptr->dst.block);
1457                         break;
1458
1459                 case ICMD_IF_FCMPG_LE:  /* ..., value, value ==> ...                  */
1460                 case ICMD_IF_DCMPG_LE:
1461
1462                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1463                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1464                         M_FCMPU(s1, s2);
1465                         M_BNAN(1);
1466                         M_BLE(0);
1467                         codegen_addreference(cd, iptr->dst.block);
1468                         break;
1469
1470                 case ICMD_IF_FCMPG_GE:  /* ..., value, value ==> ...                  */
1471                 case ICMD_IF_DCMPG_GE:
1472
1473                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1474                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1475                         M_FCMPU(s1, s2);
1476                         M_BNAN(0);
1477                         codegen_addreference(cd, iptr->dst.block);
1478                         M_BGE(0);
1479                         codegen_addreference(cd, iptr->dst.block);
1480                         break;
1481
1482
1483                 /* memory operations **************************************************/
1484
1485                 case ICMD_ARRAYLENGTH: /* ..., arrayref  ==> ..., length              */
1486
1487                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1488                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1489                         gen_nullptr_check(s1);
1490                         M_ILD(d, s1, OFFSET(java_arrayheader, size));
1491                         emit_store_dst(jd, iptr, d);
1492                         break;
1493
1494                 case ICMD_BALOAD:     /* ..., arrayref, index  ==> ..., value         */
1495
1496                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1497                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1498                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1499                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1500                                 gen_nullptr_check(s1);
1501                                 gen_bound_check;
1502                         }
1503                         M_IADD_IMM(s2, OFFSET(java_chararray, data[0]), REG_ITMP2);
1504                         M_LBZX(d, s1, REG_ITMP2);
1505                         M_BSEXT(d, d);
1506                         emit_store_dst(jd, iptr, d);
1507                         break;
1508
1509                 case ICMD_CALOAD:     /* ..., arrayref, index  ==> ..., value         */
1510
1511                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1512                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1513                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1514                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1515                                 gen_nullptr_check(s1);
1516                                 gen_bound_check;
1517                         }
1518                         M_SLL_IMM(s2, 1, REG_ITMP2);
1519                         M_IADD_IMM(REG_ITMP2, OFFSET(java_chararray, data[0]), REG_ITMP2);
1520                         M_LHZX(d, s1, REG_ITMP2);
1521                         emit_store_dst(jd, iptr, d);
1522                         break;
1523
1524                 case ICMD_SALOAD:     /* ..., arrayref, index  ==> ..., value         */
1525
1526                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1527                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1528                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1529                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1530                                 gen_nullptr_check(s1);
1531                                 gen_bound_check;
1532                         }
1533                         M_SLL_IMM(s2, 1, REG_ITMP2);
1534                         M_IADD_IMM(REG_ITMP2, OFFSET(java_shortarray, data[0]), REG_ITMP2);
1535                         M_LHAX(d, s1, REG_ITMP2);
1536                         emit_store_dst(jd, iptr, d);
1537                         break;
1538
1539                 case ICMD_IALOAD:     /* ..., arrayref, index  ==> ..., value         */
1540
1541                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1542                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1543                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1544                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1545                                 gen_nullptr_check(s1);
1546                                 gen_bound_check;
1547                         }
1548                         M_SLL_IMM(s2, 2, REG_ITMP2);
1549                         M_IADD_IMM(REG_ITMP2, OFFSET(java_intarray, data[0]), REG_ITMP2);
1550                         M_LWZX(d, s1, REG_ITMP2);
1551                         emit_store_dst(jd, iptr, d);
1552                         break;
1553
1554                 case ICMD_LALOAD:     /* ..., arrayref, index  ==> ..., value         */
1555
1556                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1557                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1558                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1559                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1560                                 gen_nullptr_check(s1);
1561                                 gen_bound_check;
1562                         }
1563                         M_SLL_IMM(s2, 3, REG_ITMP2);
1564                         M_IADD(s1, REG_ITMP2, REG_ITMP2);
1565                         M_LLD_INTERN(d, REG_ITMP2, OFFSET(java_longarray, data[0]));
1566                         emit_store_dst(jd, iptr, d);
1567                         break;
1568
1569                 case ICMD_FALOAD:     /* ..., arrayref, index  ==> ..., value         */
1570
1571                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1572                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1573                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1574                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1575                                 gen_nullptr_check(s1);
1576                                 gen_bound_check;
1577                         }
1578                         M_SLL_IMM(s2, 2, REG_ITMP2);
1579                         M_IADD_IMM(REG_ITMP2, OFFSET(java_floatarray, data[0]), REG_ITMP2);
1580                         M_LFSX(d, s1, REG_ITMP2);
1581                         emit_store_dst(jd, iptr, d);
1582                         break;
1583
1584                 case ICMD_DALOAD:     /* ..., arrayref, index  ==> ..., value         */
1585
1586                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1587                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1588                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1589                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1590                                 gen_nullptr_check(s1);
1591                                 gen_bound_check;
1592                         }
1593                         M_SLL_IMM(s2, 3, REG_ITMP2);
1594                         M_IADD_IMM(REG_ITMP2, OFFSET(java_doublearray, data[0]), REG_ITMP2);
1595                         M_LFDX(d, s1, REG_ITMP2);
1596                         emit_store_dst(jd, iptr, d);
1597                         break;
1598
1599                 case ICMD_AALOAD:     /* ..., arrayref, index  ==> ..., value         */
1600
1601                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1602                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1603                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1604                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1605                                 gen_nullptr_check(s1);
1606                                 gen_bound_check;
1607                         }
1608                         M_SLL_IMM(s2, 2, REG_ITMP2);
1609                         M_IADD_IMM(REG_ITMP2, OFFSET(java_objectarray, data[0]), REG_ITMP2);
1610                         M_LWZX(d, s1, REG_ITMP2);
1611                         emit_store_dst(jd, iptr, d);
1612                         break;
1613
1614
1615                 case ICMD_BASTORE:    /* ..., arrayref, index, value  ==> ...         */
1616
1617                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1618                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1619                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1620                                 gen_nullptr_check(s1);
1621                                 gen_bound_check;
1622                         }
1623                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1624                         M_IADD_IMM(s2, OFFSET(java_bytearray, data[0]), REG_ITMP2);
1625                         M_STBX(s3, s1, REG_ITMP2);
1626                         break;
1627
1628                 case ICMD_CASTORE:    /* ..., arrayref, index, value  ==> ...         */
1629
1630                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1631                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1632                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1633                                 gen_nullptr_check(s1);
1634                                 gen_bound_check;
1635                         }
1636                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1637                         M_SLL_IMM(s2, 1, REG_ITMP2);
1638                         M_IADD_IMM(REG_ITMP2, OFFSET(java_chararray, data[0]), REG_ITMP2);
1639                         M_STHX(s3, s1, REG_ITMP2);
1640                         break;
1641
1642                 case ICMD_SASTORE:    /* ..., arrayref, index, value  ==> ...         */
1643
1644                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1645                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1646                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1647                                 gen_nullptr_check(s1);
1648                                 gen_bound_check;
1649                         }
1650                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1651                         M_SLL_IMM(s2, 1, REG_ITMP2);
1652                         M_IADD_IMM(REG_ITMP2, OFFSET(java_shortarray, data[0]), REG_ITMP2);
1653                         M_STHX(s3, s1, REG_ITMP2);
1654                         break;
1655
1656                 case ICMD_IASTORE:    /* ..., arrayref, index, value  ==> ...         */
1657
1658                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1659                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1660                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1661                                 gen_nullptr_check(s1);
1662                                 gen_bound_check;
1663                         }
1664                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1665                         M_SLL_IMM(s2, 2, REG_ITMP2);
1666                         M_IADD_IMM(REG_ITMP2, OFFSET(java_intarray, data[0]), REG_ITMP2);
1667                         M_STWX(s3, s1, REG_ITMP2);
1668                         break;
1669
1670                 case ICMD_LASTORE:    /* ..., arrayref, index, value  ==> ...         */
1671
1672                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1673                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1674                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1675                                 gen_nullptr_check(s1);
1676                                 gen_bound_check;
1677                         }
1678                         s3 = emit_load_s3_high(jd, iptr, REG_ITMP3);
1679                         M_SLL_IMM(s2, 3, REG_ITMP2);
1680                         M_IADD_IMM(REG_ITMP2, OFFSET(java_longarray, data[0]), REG_ITMP2);
1681                         M_STWX(s3, s1, REG_ITMP2);
1682                         M_IADD_IMM(REG_ITMP2, 4, REG_ITMP2);
1683                         s3 = emit_load_s3_low(jd, iptr, REG_ITMP3);
1684                         M_STWX(s3, s1, REG_ITMP2);
1685                         break;
1686
1687                 case ICMD_FASTORE:    /* ..., arrayref, index, value  ==> ...         */
1688
1689                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1690                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1691                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1692                                 gen_nullptr_check(s1);
1693                                 gen_bound_check;
1694                         }
1695                         s3 = emit_load_s3(jd, iptr, REG_FTMP3);
1696                         M_SLL_IMM(s2, 2, REG_ITMP2);
1697                         M_IADD_IMM(REG_ITMP2, OFFSET(java_floatarray, data[0]), REG_ITMP2);
1698                         M_STFSX(s3, s1, REG_ITMP2);
1699                         break;
1700
1701                 case ICMD_DASTORE:    /* ..., arrayref, index, value  ==> ...         */
1702
1703                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1704                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1705                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1706                                 gen_nullptr_check(s1);
1707                                 gen_bound_check;
1708                         }
1709                         s3 = emit_load_s3(jd, iptr, REG_FTMP3);
1710                         M_SLL_IMM(s2, 3, REG_ITMP2);
1711                         M_IADD_IMM(REG_ITMP2, OFFSET(java_doublearray, data[0]), REG_ITMP2);
1712                         M_STFDX(s3, s1, REG_ITMP2);
1713                         break;
1714
1715                 case ICMD_AASTORE:    /* ..., arrayref, index, value  ==> ...         */
1716
1717                         s1 = emit_load_s1(jd, iptr, REG_A0);
1718                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1719                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1720                                 gen_nullptr_check(s1);
1721                                 gen_bound_check;
1722                         }
1723                         s3 = emit_load_s3(jd, iptr, REG_A1);
1724
1725                         disp = dseg_add_functionptr(cd, BUILTIN_canstore);
1726                         M_ALD(REG_ITMP3, REG_PV, disp);
1727                         M_MTCTR(REG_ITMP3);
1728
1729                         M_INTMOVE(s1, REG_A0);
1730                         M_INTMOVE(s3, REG_A1);
1731
1732                         M_JSR;
1733                         M_TST(REG_RESULT);
1734                         M_BEQ(0);
1735                         codegen_add_arraystoreexception_ref(cd);
1736
1737                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1738                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1739                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1740                         M_SLL_IMM(s2, 2, REG_ITMP2);
1741                         M_IADD_IMM(REG_ITMP2, OFFSET(java_objectarray, data[0]), REG_ITMP2);
1742                         M_STWX(s3, s1, REG_ITMP2);
1743                         break;
1744
1745
1746                 case ICMD_GETSTATIC:  /* ...  ==> ..., value                          */
1747
1748                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1749                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1750
1751                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1752                                 disp = dseg_add_unique_address(cd, uf);
1753
1754                                 codegen_addpatchref(cd, PATCHER_get_putstatic, uf, disp);
1755
1756                                 if (opt_showdisassemble)
1757                                         M_NOP;
1758                         }
1759                         else {
1760                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1761
1762                                 fieldtype = fi->type;
1763                                 disp = dseg_add_address(cd, &(fi->value));
1764
1765                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1766                                         codegen_addpatchref(cd, PATCHER_initialize_class,
1767                                                                                 fi->class, disp);
1768
1769                                         if (opt_showdisassemble)
1770                                                 M_NOP;
1771                                 }
1772                         }
1773
1774                         M_ALD(REG_ITMP1, REG_PV, disp);
1775                         switch (fieldtype) {
1776                         case TYPE_INT:
1777                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1778                                 M_ILD_INTERN(d, REG_ITMP1, 0);
1779                                 break;
1780                         case TYPE_LNG:
1781                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1782                                 M_ILD_INTERN(GET_LOW_REG(d), REG_ITMP1, 4);/* keep this order */
1783                                 M_ILD_INTERN(GET_HIGH_REG(d), REG_ITMP1, 0);/*keep this order */
1784                                 break;
1785                         case TYPE_ADR:
1786                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1787                                 M_ALD_INTERN(d, REG_ITMP1, 0);
1788                                 break;
1789                         case TYPE_FLT:
1790                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1791                                 M_FLD_INTERN(d, REG_ITMP1, 0);
1792                                 break;
1793                         case TYPE_DBL:
1794                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1795                                 M_DLD_INTERN(d, REG_ITMP1, 0);
1796                                 break;
1797                         }
1798                         emit_store_dst(jd, iptr, d);
1799                         break;
1800
1801                 case ICMD_PUTSTATIC:  /* ..., value  ==> ...                          */
1802
1803                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1804                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1805
1806                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1807                                 disp = dseg_add_unique_address(cd, uf);
1808
1809                                 codegen_addpatchref(cd, PATCHER_get_putstatic, uf, disp);
1810
1811                                 if (opt_showdisassemble)
1812                                         M_NOP;
1813                         }
1814                         else {
1815                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1816
1817                                 fieldtype = fi->type;
1818                                 disp = dseg_add_address(cd, &(fi->value));
1819
1820                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1821                                         codegen_addpatchref(cd, PATCHER_initialize_class,
1822                                                                                 fi->class, disp);
1823
1824                                         if (opt_showdisassemble)
1825                                                 M_NOP;
1826                                 }
1827                         }
1828
1829                         M_ALD(REG_ITMP1, REG_PV, disp);
1830                         switch (fieldtype) {
1831                         case TYPE_INT:
1832                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1833                                 M_IST_INTERN(s1, REG_ITMP1, 0);
1834                                 break;
1835                         case TYPE_LNG:
1836                                 s1 = emit_load_s1(jd, iptr, REG_ITMP23_PACKED);
1837                                 M_LST_INTERN(s1, REG_ITMP1, 0);
1838                                 break;
1839                         case TYPE_ADR:
1840                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1841                                 M_AST_INTERN(s1, REG_ITMP1, 0);
1842                                 break;
1843                         case TYPE_FLT:
1844                                 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1845                                 M_FST_INTERN(s1, REG_ITMP1, 0);
1846                                 break;
1847                         case TYPE_DBL:
1848                                 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1849                                 M_DST_INTERN(s1, REG_ITMP1, 0);
1850                                 break;
1851                         }
1852                         break;
1853
1854
1855                 case ICMD_GETFIELD:   /* ...  ==> ..., value                          */
1856
1857                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1858                         gen_nullptr_check(s1);
1859
1860                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1861                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1862
1863                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1864
1865                                 codegen_addpatchref(cd, PATCHER_get_putfield, uf, 0);
1866
1867                                 if (opt_showdisassemble)
1868                                         M_NOP;
1869
1870                                 disp = 0;
1871                         }
1872                         else {
1873                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1874                                 fieldtype = fi->type;
1875                                 disp      = fi->offset;
1876                         }
1877
1878                         switch (fieldtype) {
1879                         case TYPE_INT:
1880                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1881                                 M_ILD(d, s1, disp);
1882                                 break;
1883                         case TYPE_LNG:
1884                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
1885                                 if (GET_HIGH_REG(d) == s1) {
1886                                         M_ILD(GET_LOW_REG(d), s1, disp + 4);
1887                                         M_ILD(GET_HIGH_REG(d), s1, disp);
1888                                 }
1889                                 else {
1890                                         M_ILD(GET_HIGH_REG(d), s1, disp);
1891                                         M_ILD(GET_LOW_REG(d), s1, disp + 4);
1892                                 }
1893                                 break;
1894                         case TYPE_ADR:
1895                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1896                                 M_ALD(d, s1, disp);
1897                                 break;
1898                         case TYPE_FLT:
1899                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1900                                 M_FLD(d, s1, disp);
1901                                 break;
1902                         case TYPE_DBL:
1903                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1904                                 M_DLD(d, s1, disp);
1905                                 break;
1906                         }
1907                         emit_store_dst(jd, iptr, d);
1908                         break;
1909
1910                 case ICMD_PUTFIELD:   /* ..., value  ==> ...                          */
1911
1912                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1913                         gen_nullptr_check(s1);
1914
1915                         if (!IS_FLT_DBL_TYPE(fieldtype)) {
1916                                 if (IS_2_WORD_TYPE(fieldtype))
1917                                         s2 = emit_load_s2(jd, iptr, REG_ITMP23_PACKED);
1918                                 else
1919                                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1920                         }
1921                         else
1922                                 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1923
1924                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1925                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1926
1927                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1928
1929                                 codegen_addpatchref(cd, PATCHER_get_putfield, uf, 0);
1930
1931                                 if (opt_showdisassemble)
1932                                         M_NOP;
1933
1934                                 disp = 0;
1935                         }
1936                         else {
1937                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1938                                 fieldtype = fi->type;
1939                                 disp      = fi->offset;
1940                         }
1941
1942                         switch (fieldtype) {
1943                         case TYPE_INT:
1944                                 M_IST(s2, s1, disp);
1945                                 break;
1946                         case TYPE_LNG:
1947                                 M_IST(GET_LOW_REG(s2), s1, disp + 4);      /* keep this order */
1948                                 M_IST(GET_HIGH_REG(s2), s1, disp);         /* keep this order */
1949                                 break;
1950                         case TYPE_ADR:
1951                                 M_AST(s2, s1, disp);
1952                                 break;
1953                         case TYPE_FLT:
1954                                 M_FST(s2, s1, disp);
1955                                 break;
1956                         case TYPE_DBL:
1957                                 M_DST(s2, s1, disp);
1958                                 break;
1959                         }
1960                         break;
1961
1962
1963                 /* branch operations **************************************************/
1964
1965                 case ICMD_ATHROW:       /* ..., objectref ==> ... (, objectref)       */
1966
1967                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1968                         M_INTMOVE(s1, REG_ITMP1_XPTR);
1969
1970 #ifdef ENABLE_VERIFIER
1971                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1972                                 unresolved_class *uc = iptr->sx.s23.s2.uc;
1973
1974                                 codegen_addpatchref(cd, PATCHER_resolve_class, uc, 0);
1975
1976                                 if (opt_showdisassemble)
1977                                         M_NOP;
1978                         }
1979 #endif /* ENABLE_VERIFIER */
1980
1981                         disp = dseg_add_functionptr(cd, asm_handle_exception);
1982                         M_ALD(REG_ITMP2, REG_PV, disp);
1983                         M_MTCTR(REG_ITMP2);
1984
1985                         if (jd->isleafmethod)
1986                                 M_MFLR(REG_ITMP3);                          /* save LR        */
1987
1988                         M_BL(0);                                        /* get current PC */
1989                         M_MFLR(REG_ITMP2_XPC);
1990
1991                         if (jd->isleafmethod)
1992                                 M_MTLR(REG_ITMP3);                          /* restore LR     */
1993
1994                         M_RTS;                                          /* jump to CTR    */
1995                         ALIGNCODENOP;
1996                         break;
1997
1998                 case ICMD_GOTO:         /* ... ==> ...                                */
1999                 case ICMD_RET:          /* ... ==> ...                                */
2000
2001                         M_BR(0);
2002                         codegen_addreference(cd, iptr->dst.block);
2003                         ALIGNCODENOP;
2004                         break;
2005
2006                 case ICMD_JSR:          /* ... ==> ...                                */
2007
2008                         M_BR(0);
2009                         codegen_addreference(cd, iptr->sx.s23.s3.jsrtarget.block);
2010                         ALIGNCODENOP;
2011                         break;
2012
2013                 case ICMD_IFNULL:       /* ..., value ==> ...                         */
2014
2015                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2016                         M_TST(s1);
2017                         M_BEQ(0);
2018                         codegen_addreference(cd, iptr->dst.block);
2019                         break;
2020
2021                 case ICMD_IFNONNULL:    /* ..., value ==> ...                         */
2022
2023                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2024                         M_TST(s1);
2025                         M_BNE(0);
2026                         codegen_addreference(cd, iptr->dst.block);
2027                         break;
2028
2029                 case ICMD_IFLT:
2030                 case ICMD_IFLE:
2031                 case ICMD_IFNE:
2032                 case ICMD_IFGT:
2033                 case ICMD_IFGE:
2034                 case ICMD_IFEQ:         /* ..., value ==> ...                         */
2035
2036                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2037                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767))
2038                                 M_CMPI(s1, iptr->sx.val.i);
2039                         else {
2040                                 ICONST(REG_ITMP2, iptr->sx.val.i);
2041                                 M_CMP(s1, REG_ITMP2);
2042                         }
2043                         switch (iptr->opc) {
2044                         case ICMD_IFLT:
2045                                 M_BLT(0);
2046                                 break;
2047                         case ICMD_IFLE:
2048                                 M_BLE(0);
2049                                 break;
2050                         case ICMD_IFNE:
2051                                 M_BNE(0);
2052                                 break;
2053                         case ICMD_IFGT:
2054                                 M_BGT(0);
2055                                 break;
2056                         case ICMD_IFGE:
2057                                 M_BGE(0);
2058                                 break;
2059                         case ICMD_IFEQ:
2060                                 M_BEQ(0);
2061                                 break;
2062                         }
2063                         codegen_addreference(cd, iptr->dst.block);
2064                         break;
2065
2066
2067                 case ICMD_IF_LEQ:       /* ..., value ==> ...                         */
2068
2069                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2070                         s2 = emit_load_s1_high(jd, iptr, REG_ITMP2);
2071                         if (iptr->sx.val.l == 0) {
2072                                 M_OR_TST(s1, s2, REG_ITMP3);
2073                         }
2074                         else if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
2075                                 M_XOR_IMM(s2, 0, REG_ITMP2);
2076                                 M_XOR_IMM(s1, iptr->sx.val.l & 0xffff, REG_ITMP1);
2077                                 M_OR_TST(REG_ITMP1, REG_ITMP2, REG_ITMP3);
2078                         }
2079                         else {
2080                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
2081                                 M_XOR(s1, REG_ITMP3, REG_ITMP1);
2082                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
2083                                 M_XOR(s2, REG_ITMP3, REG_ITMP2);
2084                                 M_OR_TST(REG_ITMP1, REG_ITMP2, REG_ITMP3);
2085                         }
2086                         M_BEQ(0);
2087                         codegen_addreference(cd, iptr->dst.block);
2088                         break;
2089
2090                 case ICMD_IF_LLT:       /* ..., value ==> ...                         */
2091                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2092                         s2 = emit_load_s1_high(jd, iptr, REG_ITMP2);
2093                         if (iptr->sx.val.l == 0) {
2094                                 /* if high word is less than zero, the whole long is too */
2095                                 M_CMPI(s2, 0);
2096                         }
2097                         else if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
2098                                 M_CMPI(s2, 0);
2099                                 M_BLT(0);
2100                                 codegen_addreference(cd, iptr->dst.block);
2101                                 M_BGT(2);
2102                                 M_CMPUI(s1, iptr->sx.val.l & 0xffff);
2103                         }
2104                         else {
2105                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
2106                                 M_CMP(s2, REG_ITMP3);
2107                                 M_BLT(0);
2108                                 codegen_addreference(cd, iptr->dst.block);
2109                                 M_BGT(3);
2110                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
2111                                 M_CMPU(s1, REG_ITMP3);
2112                         }
2113                         M_BLT(0);
2114                         codegen_addreference(cd, iptr->dst.block);
2115                         break;
2116
2117                 case ICMD_IF_LLE:       /* ..., value ==> ...                         */
2118
2119                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2120                         s2 = emit_load_s1_high(jd, iptr, REG_ITMP2);
2121 /*                      if (iptr->sx.val.l == 0) { */
2122 /*                              M_OR(s1, s2, REG_ITMP3); */
2123 /*                              M_CMPI(REG_ITMP3, 0); */
2124
2125 /*                      } else  */
2126                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
2127                                 M_CMPI(s2, 0);
2128                                 M_BLT(0);
2129                                 codegen_addreference(cd, iptr->dst.block);
2130                                 M_BGT(2);
2131                                 M_CMPUI(s1, iptr->sx.val.l & 0xffff);
2132                         }
2133                         else {
2134                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
2135                                 M_CMP(s2, REG_ITMP3);
2136                                 M_BLT(0);
2137                                 codegen_addreference(cd, iptr->dst.block);
2138                                 M_BGT(3);
2139                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
2140                                 M_CMPU(s1, REG_ITMP3);
2141                         }
2142                         M_BLE(0);
2143                         codegen_addreference(cd, iptr->dst.block);
2144                         break;
2145
2146                 case ICMD_IF_LNE:       /* ..., value ==> ...                         */
2147
2148                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2149                         s2 = emit_load_s1_high(jd, iptr, REG_ITMP2);
2150                         if (iptr->sx.val.l == 0) {
2151                                 M_OR_TST(s1, s2, REG_ITMP3);
2152                         }
2153                         else if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
2154                                 M_XOR_IMM(s2, 0, REG_ITMP2);
2155                                 M_XOR_IMM(s1, iptr->sx.val.l & 0xffff, REG_ITMP1);
2156                                 M_OR_TST(REG_ITMP1, REG_ITMP2, REG_ITMP3);
2157                         }
2158                         else {
2159                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
2160                                 M_XOR(s1, REG_ITMP3, REG_ITMP1);
2161                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
2162                                 M_XOR(s2, REG_ITMP3, REG_ITMP2);
2163                                 M_OR_TST(REG_ITMP1, REG_ITMP2, REG_ITMP3);
2164                         }
2165                         M_BNE(0);
2166                         codegen_addreference(cd, iptr->dst.block);
2167                         break;
2168
2169                 case ICMD_IF_LGT:       /* ..., value ==> ...                         */
2170
2171                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2172                         s2 = emit_load_s1_high(jd, iptr, REG_ITMP2);
2173 /*                      if (iptr->sx.val.l == 0) { */
2174 /*                              M_OR(s1, s2, REG_ITMP3); */
2175 /*                              M_CMPI(REG_ITMP3, 0); */
2176
2177 /*                      } else  */
2178                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
2179                                 M_CMPI(s2, 0);
2180                                 M_BGT(0);
2181                                 codegen_addreference(cd, iptr->dst.block);
2182                                 M_BLT(2);
2183                                 M_CMPUI(s1, iptr->sx.val.l & 0xffff);
2184                         }
2185                         else {
2186                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
2187                                 M_CMP(s2, REG_ITMP3);
2188                                 M_BGT(0);
2189                                 codegen_addreference(cd, iptr->dst.block);
2190                                 M_BLT(3);
2191                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
2192                                 M_CMPU(s1, REG_ITMP3);
2193                         }
2194                         M_BGT(0);
2195                         codegen_addreference(cd, iptr->dst.block);
2196                         break;
2197
2198                 case ICMD_IF_LGE:       /* ..., value ==> ...                         */
2199
2200                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2201                         s2 = emit_load_s1_high(jd, iptr, REG_ITMP2);
2202                         if (iptr->sx.val.l == 0) {
2203                                 /* if high word is greater equal zero, the whole long is too */
2204                                 M_CMPI(s2, 0);
2205                         }
2206                         else if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
2207                                 M_CMPI(s2, 0);
2208                                 M_BGT(0);
2209                                 codegen_addreference(cd, iptr->dst.block);
2210                                 M_BLT(2);
2211                                 M_CMPUI(s1, iptr->sx.val.l & 0xffff);
2212                         }
2213                         else {
2214                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
2215                                 M_CMP(s2, REG_ITMP3);
2216                                 M_BGT(0);
2217                                 codegen_addreference(cd, iptr->dst.block);
2218                                 M_BLT(3);
2219                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
2220                                 M_CMPU(s1, REG_ITMP3);
2221                         }
2222                         M_BGE(0);
2223                         codegen_addreference(cd, iptr->dst.block);
2224                         break;
2225
2226                 case ICMD_IF_ICMPEQ:    /* ..., value, value ==> ...                  */
2227                 case ICMD_IF_ACMPEQ:    /* op1 = target JavaVM pc                     */
2228
2229                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2230                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2231                         M_CMP(s1, s2);
2232                         M_BEQ(0);
2233                         codegen_addreference(cd, iptr->dst.block);
2234                         break;
2235
2236                 case ICMD_IF_LCMPEQ:    /* ..., value, value ==> ...                  */
2237
2238                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
2239                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
2240                         M_CMP(s1, s2);
2241                         /* load low-bits before the branch, so we know the distance */
2242                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2243                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
2244                         M_BNE(2);
2245                         M_CMP(s1, s2);
2246                         M_BEQ(0);
2247                         codegen_addreference(cd, iptr->dst.block);
2248                         break;
2249
2250                 case ICMD_IF_ICMPNE:    /* ..., value, value ==> ...                  */
2251                 case ICMD_IF_ACMPNE:    /* op1 = target JavaVM pc                     */
2252
2253                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2254                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2255                         M_CMP(s1, s2);
2256                         M_BNE(0);
2257                         codegen_addreference(cd, iptr->dst.block);
2258                         break;
2259
2260                 case ICMD_IF_LCMPNE:    /* ..., value, value ==> ...                  */
2261
2262                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
2263                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
2264                         M_CMP(s1, s2);
2265                         M_BNE(0);
2266                         codegen_addreference(cd, iptr->dst.block);
2267                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2268                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
2269                         M_CMP(s1, s2);
2270                         M_BNE(0);
2271                         codegen_addreference(cd, iptr->dst.block);
2272                         break;
2273
2274                 case ICMD_IF_ICMPLT:    /* ..., value, value ==> ...                  */
2275
2276                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2277                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2278                         M_CMP(s1, s2);
2279                         M_BLT(0);
2280                         codegen_addreference(cd, iptr->dst.block);
2281                         break;
2282
2283                 case ICMD_IF_LCMPLT:    /* ..., value, value ==> ...                  */
2284
2285                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
2286                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
2287                         M_CMP(s1, s2);
2288                         M_BLT(0);
2289                         codegen_addreference(cd, iptr->dst.block);
2290                         /* load low-bits before the branch, so we know the distance */
2291                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2292                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
2293                         M_BGT(2);
2294                         M_CMPU(s1, s2);
2295                         M_BLT(0);
2296                         codegen_addreference(cd, iptr->dst.block);
2297                         break;
2298
2299                 case ICMD_IF_ICMPGT:    /* ..., value, value ==> ...                  */
2300
2301                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2302                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2303                         M_CMP(s1, s2);
2304                         M_BGT(0);
2305                         codegen_addreference(cd, iptr->dst.block);
2306                         break;
2307
2308                 case ICMD_IF_LCMPGT:    /* ..., value, value ==> ...                  */
2309
2310                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
2311                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
2312                         M_CMP(s1, s2);
2313                         M_BGT(0);
2314                         codegen_addreference(cd, iptr->dst.block);
2315                         /* load low-bits before the branch, so we know the distance */
2316                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2317                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
2318                         M_BLT(2);
2319                         M_CMPU(s1, s2);
2320                         M_BGT(0);
2321                         codegen_addreference(cd, iptr->dst.block);
2322                         break;
2323
2324                 case ICMD_IF_ICMPLE:    /* ..., value, value ==> ...                  */
2325
2326                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2327                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2328                         M_CMP(s1, s2);
2329                         M_BLE(0);
2330                         codegen_addreference(cd, iptr->dst.block);
2331                         break;
2332
2333                 case ICMD_IF_LCMPLE:    /* ..., value, value ==> ...                  */
2334
2335                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
2336                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
2337                         M_CMP(s1, s2);
2338                         M_BLT(0);
2339                         codegen_addreference(cd, iptr->dst.block);
2340                         /* load low-bits before the branch, so we know the distance */
2341                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2342                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
2343                         M_BGT(2);
2344                         M_CMPU(s1, s2);
2345                         M_BLE(0);
2346                         codegen_addreference(cd, iptr->dst.block);
2347                         break;
2348
2349                 case ICMD_IF_ICMPGE:    /* ..., value, value ==> ...                  */
2350
2351                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2352                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2353                         M_CMP(s1, s2);
2354                         M_BGE(0);
2355                         codegen_addreference(cd, iptr->dst.block);
2356                         break;
2357
2358                 case ICMD_IF_LCMPGE:    /* ..., value, value ==> ...                  */
2359
2360                         s1 = emit_load_s1_high(jd, iptr, REG_ITMP1);
2361                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
2362                         M_CMP(s1, s2);
2363                         M_BGT(0);
2364                         codegen_addreference(cd, iptr->dst.block);
2365                         /* load low-bits before the branch, so we know the distance */
2366                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2367                         s2 = emit_load_s2_low(jd, iptr, REG_ITMP2);
2368                         M_BLT(2);
2369                         M_CMPU(s1, s2);
2370                         M_BGE(0);
2371                         codegen_addreference(cd, iptr->dst.block);
2372                         break;
2373
2374                 case ICMD_IRETURN:      /* ..., retvalue ==> ...                      */
2375
2376                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2377                         M_INTMOVE(s1, REG_RESULT);
2378                         goto nowperformreturn;
2379
2380                 case ICMD_ARETURN:      /* ..., retvalue ==> ...                      */
2381
2382                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2383                         M_INTMOVE(s1, REG_RESULT);
2384
2385 #ifdef ENABLE_VERIFIER
2386                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2387                                 unresolved_class *uc = iptr->sx.s23.s2.uc;
2388
2389                                 codegen_addpatchref(cd, PATCHER_resolve_class, uc, 0);
2390
2391                                 if (opt_showdisassemble)
2392                                         M_NOP;
2393                         }
2394 #endif /* ENABLE_VERIFIER */
2395                         goto nowperformreturn;
2396
2397                 case ICMD_LRETURN:      /* ..., retvalue ==> ...                      */
2398
2399                         s1 = emit_load_s1(jd, iptr, REG_RESULT_PACKED);
2400                         M_LNGMOVE(s1, REG_RESULT_PACKED);
2401                         goto nowperformreturn;
2402
2403                 case ICMD_FRETURN:      /* ..., retvalue ==> ...                      */
2404                 case ICMD_DRETURN:
2405
2406                         s1 = emit_load_s1(jd, iptr, REG_FRESULT);
2407                         M_FLTMOVE(s1, REG_FRESULT);
2408                         goto nowperformreturn;
2409
2410                 case ICMD_RETURN:      /* ...  ==> ...                                */
2411
2412 nowperformreturn:
2413                         {
2414                         s4 i, p;
2415
2416                         p = cd->stackframesize;
2417
2418                         /* call trace function */
2419
2420                         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
2421                                 emit_verbosecall_exit(jd);
2422
2423 #if defined(ENABLE_THREADS)
2424                         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
2425                                 disp = dseg_add_functionptr(cd, LOCK_monitor_exit);
2426                                 M_ALD(REG_ITMP3, REG_PV, disp);
2427                                 M_MTCTR(REG_ITMP3);
2428
2429                                 /* we need to save the proper return value */
2430
2431                                 switch (iptr->opc) {
2432                                 case ICMD_LRETURN:
2433                                         M_IST(REG_RESULT2, REG_SP, rd->memuse * 4 + 8);
2434                                         /* fall through */
2435                                 case ICMD_IRETURN:
2436                                 case ICMD_ARETURN:
2437                                         M_IST(REG_RESULT , REG_SP, rd->memuse * 4 + 4);
2438                                         break;
2439                                 case ICMD_FRETURN:
2440                                         M_FST(REG_FRESULT, REG_SP, rd->memuse * 4 + 4);
2441                                         break;
2442                                 case ICMD_DRETURN:
2443                                         M_DST(REG_FRESULT, REG_SP, rd->memuse * 4 + 4);
2444                                         break;
2445                                 }
2446
2447                                 M_ALD(REG_A0, REG_SP, rd->memuse * 4);
2448                                 M_JSR;
2449
2450                                 /* and now restore the proper return value */
2451
2452                                 switch (iptr->opc) {
2453                                 case ICMD_LRETURN:
2454                                         M_ILD(REG_RESULT2, REG_SP, rd->memuse * 4 + 8);
2455                                         /* fall through */
2456                                 case ICMD_IRETURN:
2457                                 case ICMD_ARETURN:
2458                                         M_ILD(REG_RESULT , REG_SP, rd->memuse * 4 + 4);
2459                                         break;
2460                                 case ICMD_FRETURN:
2461                                         M_FLD(REG_FRESULT, REG_SP, rd->memuse * 4 + 4);
2462                                         break;
2463                                 case ICMD_DRETURN:
2464                                         M_DLD(REG_FRESULT, REG_SP, rd->memuse * 4 + 4);
2465                                         break;
2466                                 }
2467                         }
2468 #endif
2469
2470                         /* restore return address                                         */
2471
2472                         if (!jd->isleafmethod) {
2473                                 /* ATTENTION: Don't use REG_ZERO (r0) here, as M_ALD
2474                                    may have a displacement overflow. */
2475
2476                                 M_ALD(REG_ITMP1, REG_SP, p * 4 + LA_LR_OFFSET);
2477                                 M_MTLR(REG_ITMP1);
2478                         }
2479
2480                         /* restore saved registers                                        */
2481
2482                         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
2483                                 p--; M_ILD(rd->savintregs[i], REG_SP, p * 4);
2484                         }
2485                         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
2486                                 p -= 2; M_DLD(rd->savfltregs[i], REG_SP, p * 4);
2487                         }
2488
2489                         /* deallocate stack                                               */
2490
2491                         if (cd->stackframesize)
2492                                 M_LDA(REG_SP, REG_SP, cd->stackframesize * 4);
2493
2494                         M_RET;
2495                         ALIGNCODENOP;
2496                         }
2497                         break;
2498
2499
2500                 case ICMD_TABLESWITCH:  /* ..., index ==> ...                         */
2501                         {
2502                         s4 i, l;
2503                         branch_target_t *table;
2504
2505                         table = iptr->dst.table;
2506
2507                         l = iptr->sx.s23.s2.tablelow;
2508                         i = iptr->sx.s23.s3.tablehigh;
2509
2510                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2511                         if (l == 0)
2512                                 M_INTMOVE(s1, REG_ITMP1);
2513                         else if (l <= 32768)
2514                                 M_LDA(REG_ITMP1, s1, -l);
2515                         else {
2516                                 ICONST(REG_ITMP2, l);
2517                                 M_ISUB(s1, REG_ITMP2, REG_ITMP1);
2518                         }
2519
2520                         i = i - l + 1;
2521
2522                         /* range check */
2523
2524                         M_CMPUI(REG_ITMP1, i - 1);
2525                         M_BGT(0);
2526                         codegen_addreference(cd, table[0].block);
2527
2528                         /* build jump table top down and use address of lowest entry */
2529
2530                         table += i;
2531
2532                         while (--i >= 0) {
2533                                 dseg_add_target(cd, table->block);
2534                                 --table;
2535                         }
2536
2537                         /* length of dataseg after last dseg_add_target is used by load */
2538
2539                         M_SLL_IMM(REG_ITMP1, 2, REG_ITMP1);
2540                         M_IADD(REG_ITMP1, REG_PV, REG_ITMP2);
2541                         M_ALD(REG_ITMP2, REG_ITMP2, -(cd->dseglen));
2542                         M_MTCTR(REG_ITMP2);
2543                         M_RTS;
2544                         ALIGNCODENOP;
2545                         }
2546                         break;
2547
2548
2549                 case ICMD_LOOKUPSWITCH: /* ..., key ==> ...                           */
2550                         {
2551                         s4 i;
2552                         lookup_target_t *lookup;
2553
2554                         lookup = iptr->dst.lookup;
2555
2556                         i = iptr->sx.s23.s2.lookupcount;
2557
2558                         MCODECHECK((i<<2)+8);
2559                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2560
2561                         while (--i >= 0) {
2562                                 if ((lookup->value >= -32768) && (lookup->value <= 32767)) {
2563                                         M_CMPI(s1, lookup->value);
2564                                 }
2565                                 else {
2566                                         disp = dseg_add_s4(cd, lookup->value);
2567                                         M_ILD(REG_ITMP2, REG_PV, disp);
2568                                         M_CMP(s1, REG_ITMP2);
2569                                 }
2570                                 M_BEQ(0);
2571                                 codegen_addreference(cd, lookup->target.block);
2572                                 lookup++;
2573                         }
2574
2575                         M_BR(0);
2576                         codegen_addreference(cd, iptr->sx.s23.s3.lookupdefault.block);
2577
2578                         ALIGNCODENOP;
2579                         break;
2580                         }
2581
2582
2583                 case ICMD_BUILTIN:      /* ..., [arg1, [arg2 ...]] ==> ...            */
2584
2585                         bte = iptr->sx.s23.s3.bte;
2586                         md  = bte->md;
2587                         goto gen_method;
2588
2589                 case ICMD_INVOKESTATIC: /* ..., [arg1, [arg2 ...]] ==> ...            */
2590
2591                 case ICMD_INVOKESPECIAL:/* ..., objectref, [arg1, [arg2 ...]] ==> ... */
2592                 case ICMD_INVOKEVIRTUAL:/* op1 = arg count, val.a = method pointer    */
2593                 case ICMD_INVOKEINTERFACE:
2594
2595                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2596                                 lm = NULL;
2597                                 um = iptr->sx.s23.s3.um;
2598                                 md = um->methodref->parseddesc.md;
2599                         }
2600                         else {
2601                                 lm = iptr->sx.s23.s3.fmiref->p.method;
2602                                 um = NULL;
2603                                 md = lm->parseddesc;
2604                         }
2605
2606 gen_method:
2607                         s3 = md->paramcount;
2608
2609                         MCODECHECK((s3 << 1) + 64);
2610
2611                         /* copy arguments to registers or stack location */
2612
2613                         for (s3 = s3 - 1; s3 >= 0; s3--) {
2614                                 var = VAR(iptr->sx.s23.s2.args[s3]);
2615
2616                                 /* Already Preallocated? */
2617                                 if (var->flags & PREALLOC)
2618                                         continue;
2619
2620                                 if (IS_INT_LNG_TYPE(var->type)) {
2621                                         if (!md->params[s3].inmemory) {
2622                                                 if (IS_2_WORD_TYPE(var->type)) {
2623                                                         s1 = PACK_REGS(
2624                                                    rd->argintregs[GET_LOW_REG(md->params[s3].regoff)],
2625                                                    rd->argintregs[GET_HIGH_REG(md->params[s3].regoff)]);
2626                                                         d = emit_load(jd, iptr, var, s1);
2627                                                         M_LNGMOVE(d, s1);
2628                                                 }
2629                                                 else {
2630                                                         s1 = rd->argintregs[md->params[s3].regoff];
2631                                                         d = emit_load(jd, iptr, var, s1);
2632                                                         M_INTMOVE(d, s1);
2633                                                 }
2634                                         }
2635                                         else {
2636                                                 if (IS_2_WORD_TYPE(var->type)) {
2637                                                         d = emit_load(jd, iptr, var, REG_ITMP12_PACKED);
2638                                                         M_LST(d, REG_SP, md->params[s3].regoff * 4);
2639                                                 }
2640                                                 else {
2641                                                         d = emit_load(jd, iptr, var, REG_ITMP1);
2642                                                         M_IST(d, REG_SP, md->params[s3].regoff * 4);
2643                                                 }
2644                                         }
2645                                 }
2646                                 else {
2647                                         if (!md->params[s3].inmemory) {
2648                                                 s1 = rd->argfltregs[md->params[s3].regoff];
2649                                                 d = emit_load(jd, iptr, var, s1);
2650                                                 M_FLTMOVE(d, s1);
2651                                         }
2652                                         else {
2653                                                 d = emit_load(jd, iptr, var, REG_FTMP1);
2654                                                 if (IS_2_WORD_TYPE(var->type))
2655                                                         M_DST(d, REG_SP, md->params[s3].regoff * 4);
2656                                                 else
2657                                                         M_FST(d, REG_SP, md->params[s3].regoff * 4);
2658                                         }
2659                                 }
2660                         }
2661
2662                         switch (iptr->opc) {
2663                         case ICMD_BUILTIN:
2664                                 disp = dseg_add_functionptr(cd, bte->fp);
2665
2666                                 M_ALD(REG_PV, REG_PV, disp);  /* pointer to built-in-function */
2667                                 break;
2668
2669                         case ICMD_INVOKESPECIAL:
2670                                 gen_nullptr_check(REG_A0);
2671                                 M_ILD(REG_ITMP1, REG_A0, 0); /* hardware nullptr   */
2672                                 /* fall through */
2673
2674                         case ICMD_INVOKESTATIC:
2675                                 if (lm == NULL) {
2676                                         disp = dseg_add_unique_address(cd, um);
2677
2678                                         codegen_addpatchref(cd, PATCHER_invokestatic_special,
2679                                                                                 um, disp);
2680
2681                                         if (opt_showdisassemble)
2682                                                 M_NOP;
2683                                 }
2684                                 else
2685                                         disp = dseg_add_address(cd, lm->stubroutine);
2686
2687                                 M_ALD(REG_PV, REG_PV, disp);
2688                                 break;
2689
2690                         case ICMD_INVOKEVIRTUAL:
2691                                 gen_nullptr_check(REG_A0);
2692
2693                                 if (lm == NULL) {
2694                                         codegen_addpatchref(cd, PATCHER_invokevirtual, um, 0);
2695
2696                                         if (opt_showdisassemble)
2697                                                 M_NOP;
2698
2699                                         s1 = 0;
2700                                 }
2701                                 else {
2702                                         s1 = OFFSET(vftbl_t, table[0]) +
2703                                                 sizeof(methodptr) * lm->vftblindex;
2704                                 }
2705
2706                                 M_ALD(REG_METHODPTR, REG_A0,
2707                                           OFFSET(java_objectheader, vftbl));
2708                                 M_ALD(REG_PV, REG_METHODPTR, s1);
2709                                 break;
2710
2711                         case ICMD_INVOKEINTERFACE:
2712                                 gen_nullptr_check(REG_A0);
2713
2714                                 if (lm == NULL) {
2715                                         codegen_addpatchref(cd, PATCHER_invokeinterface, um, 0);
2716
2717                                         if (opt_showdisassemble)
2718                                                 M_NOP;
2719
2720                                         s1 = 0;
2721                                         s2 = 0;
2722                                 }
2723                                 else {
2724                                         s1 = OFFSET(vftbl_t, interfacetable[0]) -
2725                                                 sizeof(methodptr*) * lm->class->index;
2726
2727                                         s2 = sizeof(methodptr) * (lm - lm->class->methods);
2728                                 }
2729
2730                                 M_ALD(REG_METHODPTR, REG_A0,
2731                                           OFFSET(java_objectheader, vftbl));
2732                                 M_ALD(REG_METHODPTR, REG_METHODPTR, s1);
2733                                 M_ALD(REG_PV, REG_METHODPTR, s2);
2734                                 break;
2735                         }
2736
2737                         /* generate the actual call */
2738
2739                         M_MTCTR(REG_PV);
2740                         M_JSR;
2741                         disp = (s4) (cd->mcodeptr - cd->mcodebase);
2742                         M_MFLR(REG_ITMP1);
2743                         M_LDA(REG_PV, REG_ITMP1, -disp);
2744
2745                         /* actually only used for ICMD_BUILTIN */
2746
2747                         if (INSTRUCTION_MUST_CHECK(iptr)) {
2748                                 M_CMPI(REG_RESULT, 0);
2749                                 M_BEQ(0);
2750                                 codegen_add_fillinstacktrace_ref(cd);
2751                         }
2752
2753                         /* store return value */
2754
2755                         d = md->returntype.type;
2756
2757                         if (d != TYPE_VOID) {
2758                                 if (IS_INT_LNG_TYPE(d)) {
2759                                         if (IS_2_WORD_TYPE(d)) {
2760                                                 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT_PACKED);
2761                                                 M_LNGMOVE(REG_RESULT_PACKED, s1);
2762                                         }
2763                                         else {
2764                                                 s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2765                                                 M_INTMOVE(REG_RESULT, s1);
2766                                         }
2767                                 }
2768                                 else {
2769                                         s1 = codegen_reg_of_dst(jd, iptr, REG_FRESULT);
2770                                         M_FLTMOVE(REG_FRESULT, s1);
2771                                 }
2772                                 emit_store_dst(jd, iptr, s1);
2773                         }
2774                         break;
2775
2776
2777                 case ICMD_CHECKCAST:  /* ..., objectref ==> ..., objectref            */
2778                                       /* val.a: (classinfo*) superclass               */
2779
2780                         /*  superclass is an interface:
2781                          *
2782                          *  OK if ((sub == NULL) ||
2783                          *         (sub->vftbl->interfacetablelength > super->index) &&
2784                          *         (sub->vftbl->interfacetable[-super->index] != NULL));
2785                          *
2786                          *  superclass is a class:
2787                          *
2788                          *  OK if ((sub == NULL) || (0
2789                          *         <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2790                          *         super->vftbl->diffvall));
2791                          */
2792
2793                         if (!(iptr->flags.bits & INS_FLAG_ARRAY)) {
2794                                 /* object type cast-check */
2795
2796                                 classinfo *super;
2797                                 s4         superindex;
2798
2799                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2800                                         super = NULL;
2801                                         superindex = 0;
2802                                 }
2803                                 else {
2804                                         super = iptr->sx.s23.s3.c.cls;
2805                                         superindex = super->index;
2806                                 }
2807
2808 #if defined(ENABLE_THREADS)
2809                                 codegen_threadcritrestart(cd, cd->mcodeptr - cd->mcodebase);
2810 #endif
2811
2812                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2813
2814                                 /* calculate interface checkcast code size */
2815
2816                                 s2 = 7;
2817                                 if (super == NULL)
2818                                         s2 += (opt_showdisassemble ? 1 : 0);
2819
2820                                 /* calculate class checkcast code size */
2821
2822                                 s3 = 8 + (s1 == REG_ITMP1);
2823                                 if (super == NULL)
2824                                         s3 += (opt_showdisassemble ? 1 : 0);
2825
2826                                 /* if class is not resolved, check which code to call */
2827
2828                                 if (super == NULL) {
2829                                         M_TST(s1);
2830                                         M_BEQ(3 + (opt_showdisassemble ? 1 : 0) + s2 + 1 + s3);
2831
2832                                         disp = dseg_add_unique_s4(cd, 0);         /* super->flags */
2833
2834                                         codegen_addpatchref(cd,
2835                                                                                 PATCHER_resolve_classref_to_flags,
2836                                                                                 iptr->sx.s23.s3.c.ref,
2837                                                                                 disp);
2838
2839                                         if (opt_showdisassemble)
2840                                                 M_NOP;
2841
2842                                         M_ILD(REG_ITMP2, REG_PV, disp);
2843                                         M_AND_IMM(REG_ITMP2, ACC_INTERFACE, REG_ITMP2);
2844                                         M_BEQ(s2 + 1);
2845                                 }
2846
2847                                 /* interface checkcast code */
2848
2849                                 if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2850                                         if (super == NULL) {
2851                                                 codegen_addpatchref(cd,
2852                                                                                         PATCHER_checkcast_instanceof_interface,
2853                                                                                         iptr->sx.s23.s3.c.ref,
2854                                                                                         0);
2855
2856                                                 if (opt_showdisassemble)
2857                                                         M_NOP;
2858                                         }
2859                                         else {
2860                                                 M_TST(s1);
2861                                                 M_BEQ(s2);
2862                                         }
2863
2864                                         M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2865                                         M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, interfacetablelength));
2866                                         M_LDATST(REG_ITMP3, REG_ITMP3, -superindex);
2867                                         M_BLE(0);
2868                                         codegen_add_classcastexception_ref(cd, s1);
2869                                         M_ALD(REG_ITMP3, REG_ITMP2,
2870                                                   OFFSET(vftbl_t, interfacetable[0]) -
2871                                                   superindex * sizeof(methodptr*));
2872                                         M_TST(REG_ITMP3);
2873                                         M_BEQ(0);
2874                                         codegen_add_classcastexception_ref(cd, s1);
2875
2876                                         if (super == NULL)
2877                                                 M_BR(s3);
2878                                 }
2879
2880                                 /* class checkcast code */
2881
2882                                 if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2883                                         if (super == NULL) {
2884                                                 disp = dseg_add_unique_address(cd, NULL);
2885
2886                                                 codegen_addpatchref(cd, PATCHER_resolve_classref_to_vftbl,
2887                                                                                         iptr->sx.s23.s3.c.ref,
2888                                                                                         disp);
2889
2890                                                 if (opt_showdisassemble)
2891                                                         M_NOP;
2892                                         }
2893                                         else {
2894                                                 disp = dseg_add_address(cd, super->vftbl);
2895
2896                                                 M_TST(s1);
2897                                                 M_BEQ(s3);
2898                                         }
2899
2900                                         M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2901 #if defined(ENABLE_THREADS)
2902                                         codegen_threadcritstart(cd, cd->mcodeptr - cd->mcodebase);
2903 #endif
2904                                         M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2905                                         M_ALD(REG_ITMP2, REG_PV, disp);
2906                                         if (s1 != REG_ITMP1) {
2907                                                 M_ILD(REG_ITMP1, REG_ITMP2, OFFSET(vftbl_t, baseval));
2908                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2909 #if defined(ENABLE_THREADS)
2910                                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2911 #endif
2912                                                 M_ISUB(REG_ITMP3, REG_ITMP1, REG_ITMP3);
2913                                         } else {
2914                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, baseval));
2915                                                 M_ISUB(REG_ITMP3, REG_ITMP2, REG_ITMP3);
2916                                                 M_ALD(REG_ITMP2, REG_PV, disp);
2917                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2918 #if defined(ENABLE_THREADS)
2919                                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2920 #endif
2921                                         }
2922                                         M_CMPU(REG_ITMP3, REG_ITMP2);
2923                                         M_BGT(0);
2924                                         codegen_add_classcastexception_ref(cd, s1);
2925                                 }
2926                                 d = codegen_reg_of_dst(jd, iptr, s1);
2927                         }
2928                         else {
2929                                 /* array type cast-check */
2930
2931                                 s1 = emit_load_s1(jd, iptr, REG_A0);
2932                                 M_INTMOVE(s1, REG_A0);
2933
2934                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2935                                         disp = dseg_add_unique_address(cd, NULL);
2936
2937                                         codegen_addpatchref(cd, PATCHER_resolve_classref_to_classinfo,
2938                                                                                 iptr->sx.s23.s3.c.ref,
2939                                                                                 disp);
2940
2941                                         if (opt_showdisassemble)
2942                                                 M_NOP;
2943                                 }
2944                                 else
2945                                         disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2946
2947                                 M_ALD(REG_A1, REG_PV, disp);
2948                                 disp = dseg_add_functionptr(cd, BUILTIN_arraycheckcast);
2949                                 M_ALD(REG_ITMP2, REG_PV, disp);
2950                                 M_MTCTR(REG_ITMP2);
2951                                 M_JSR;
2952                                 M_TST(REG_RESULT);
2953                                 M_BEQ(0);
2954                                 codegen_add_classcastexception_ref(cd, s1);
2955
2956                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2957                                 d = codegen_reg_of_dst(jd, iptr, s1);
2958                         }
2959                         M_INTMOVE(s1, d);
2960                         emit_store_dst(jd, iptr, d);
2961                         break;
2962
2963                 case ICMD_INSTANCEOF: /* ..., objectref ==> ..., intresult            */
2964                                       /* val.a: (classinfo*) superclass               */
2965
2966                         /*  superclass is an interface:
2967                          *
2968                          *  return (sub != NULL) &&
2969                          *         (sub->vftbl->interfacetablelength > super->index) &&
2970                          *         (sub->vftbl->interfacetable[-super->index] != NULL);
2971                          *
2972                          *  superclass is a class:
2973                          *
2974                          *  return ((sub != NULL) && (0
2975                          *          <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2976                          *          super->vftbl->diffvall));
2977                          */
2978
2979                         {
2980                         classinfo *super;
2981                         s4         superindex;
2982
2983                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2984                                 super = NULL;
2985                                 superindex = 0;
2986                         }
2987                         else {
2988                                 super = iptr->sx.s23.s3.c.cls;
2989                                 superindex = super->index;
2990                         }
2991
2992 #if defined(ENABLE_THREADS)
2993             codegen_threadcritrestart(cd, cd->mcodeptr - cd->mcodebase);
2994 #endif
2995                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2996                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
2997                         if (s1 == d) {
2998                                 M_MOV(s1, REG_ITMP1);
2999                                 s1 = REG_ITMP1;
3000                         }
3001
3002                         /* calculate interface instanceof code size */
3003
3004                         s2 = 8;
3005                         if (super == NULL)
3006                                 s2 += (opt_showdisassemble ? 1 : 0);
3007
3008                         /* calculate class instanceof code size */
3009
3010                         s3 = 10;
3011                         if (super == NULL)
3012                                 s3 += (opt_showdisassemble ? 1 : 0);
3013
3014                         M_CLR(d);
3015
3016                         /* if class is not resolved, check which code to call */
3017
3018                         if (super == NULL) {
3019                                 M_TST(s1);
3020                                 M_BEQ(3 + (opt_showdisassemble ? 1 : 0) + s2 + 1 + s3);
3021
3022                                 disp = dseg_add_unique_s4(cd, 0);             /* super->flags */
3023
3024                                 codegen_addpatchref(cd, PATCHER_resolve_classref_to_flags,
3025                                                                         iptr->sx.s23.s3.c.ref, disp);
3026
3027                                 if (opt_showdisassemble)
3028                                         M_NOP;
3029
3030                                 M_ILD(REG_ITMP3, REG_PV, disp);
3031                                 M_AND_IMM(REG_ITMP3, ACC_INTERFACE, REG_ITMP3);
3032                                 M_BEQ(s2 + 1);
3033                         }
3034
3035                         /* interface instanceof code */
3036
3037                         if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
3038                                 if (super == NULL) {
3039                                         codegen_addpatchref(cd,
3040                                                                                 PATCHER_checkcast_instanceof_interface,
3041                                                                                 iptr->sx.s23.s3.c.ref, 0);
3042
3043                                         if (opt_showdisassemble)
3044                                                 M_NOP;
3045                                 }
3046                                 else {
3047                                         M_TST(s1);
3048                                         M_BEQ(s2);
3049                                 }
3050
3051                                 M_ALD(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
3052                                 M_ILD(REG_ITMP3, REG_ITMP1, OFFSET(vftbl_t, interfacetablelength));
3053                                 M_LDATST(REG_ITMP3, REG_ITMP3, -superindex);
3054                                 M_BLE(4);
3055                                 M_ALD(REG_ITMP1, REG_ITMP1,
3056                                           OFFSET(vftbl_t, interfacetable[0]) -
3057                                           superindex * sizeof(methodptr*));
3058                                 M_TST(REG_ITMP1);
3059                                 M_BEQ(1);
3060                                 M_IADD_IMM(REG_ZERO, 1, d);
3061
3062                                 if (super == NULL)
3063                                         M_BR(s3);
3064                         }
3065
3066                         /* class instanceof code */
3067
3068                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
3069                                 if (super == NULL) {
3070                                         disp = dseg_add_unique_address(cd, NULL);
3071
3072                                         codegen_addpatchref(cd, PATCHER_resolve_classref_to_vftbl,
3073                                                                                 iptr->sx.s23.s3.c.ref,
3074                                                                                 disp);
3075
3076                                         if (opt_showdisassemble)
3077                                                 M_NOP;
3078                                 }
3079                                 else {
3080                                         disp = dseg_add_address(cd, super->vftbl);
3081
3082                                         M_TST(s1);
3083                                         M_BEQ(s3);
3084                                 }
3085
3086                                 M_ALD(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
3087                                 M_ALD(REG_ITMP2, REG_PV, disp);
3088 #if defined(ENABLE_THREADS)
3089                                 codegen_threadcritstart(cd, cd->mcodeptr - cd->mcodebase);
3090 #endif
3091                                 M_ILD(REG_ITMP1, REG_ITMP1, OFFSET(vftbl_t, baseval));
3092                                 M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
3093                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
3094 #if defined(ENABLE_THREADS)
3095                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
3096 #endif
3097                                 M_ISUB(REG_ITMP1, REG_ITMP3, REG_ITMP1);
3098                                 M_CMPU(REG_ITMP1, REG_ITMP2);
3099                                 M_CLR(d);
3100                                 M_BGT(1);
3101                                 M_IADD_IMM(REG_ZERO, 1, d);
3102                         }
3103                         emit_store_dst(jd, iptr, d);
3104                         }
3105                         break;
3106
3107                 case ICMD_MULTIANEWARRAY:/* ..., cnt1, [cnt2, ...] ==> ..., arrayref  */
3108
3109                         /* check for negative sizes and copy sizes to stack if necessary  */
3110
3111                         MCODECHECK((iptr->s1.argcount << 1) + 64);
3112
3113                         for (s1 = iptr->s1.argcount; --s1 >= 0;) {
3114                                 var = VAR(iptr->sx.s23.s2.args[s1]);
3115
3116                                 /* copy SAVEDVAR sizes to stack */
3117
3118                                 /* Already Preallocated? */
3119                                 if (!(var->flags & PREALLOC)) {
3120                                         s2 = emit_load(jd, iptr, var, REG_ITMP1);
3121 #if defined(__DARWIN__)
3122                                         M_IST(s2, REG_SP, LA_SIZE + (s1 + INT_ARG_CNT) * 4);
3123 #else
3124                                         M_IST(s2, REG_SP, LA_SIZE + (s1 + 3) * 4);
3125 #endif
3126                                 }
3127                         }
3128
3129                         /* a0 = dimension count */
3130
3131                         ICONST(REG_A0, iptr->s1.argcount);
3132
3133                         /* is patcher function set? */
3134
3135                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
3136                                 disp = dseg_add_unique_address(cd, NULL);
3137
3138                                 codegen_addpatchref(cd, PATCHER_resolve_classref_to_classinfo,
3139                                                                         iptr->sx.s23.s3.c.ref, disp);
3140
3141                                 if (opt_showdisassemble)
3142                                         M_NOP;
3143                         }
3144                         else
3145                                 disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
3146
3147                         /* a1 = arraydescriptor */
3148
3149                         M_ALD(REG_A1, REG_PV, disp);
3150
3151                         /* a2 = pointer to dimensions = stack pointer */
3152
3153 #if defined(__DARWIN__)
3154                         M_LDA(REG_A2, REG_SP, LA_SIZE + INT_ARG_CNT * 4);
3155 #else
3156                         M_LDA(REG_A2, REG_SP, LA_SIZE + 3 * 4);
3157 #endif
3158
3159                         disp = dseg_add_functionptr(cd, BUILTIN_multianewarray);
3160                         M_ALD(REG_ITMP3, REG_PV, disp);
3161                         M_MTCTR(REG_ITMP3);
3162                         M_JSR;
3163
3164                         /* check for exception before result assignment */
3165
3166                         M_CMPI(REG_RESULT, 0);
3167                         M_BEQ(0);
3168                         codegen_add_fillinstacktrace_ref(cd);
3169
3170                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
3171                         M_INTMOVE(REG_RESULT, d);
3172                         emit_store_dst(jd, iptr, d);
3173                         break;
3174
3175                 default:
3176                         *exceptionptr =
3177                                 new_internalerror("Unknown ICMD %d during code generation",
3178                                                                   iptr->opc);
3179                         return false;
3180         } /* switch */
3181
3182         } /* for instruction */
3183
3184         } /* if (bptr -> flags >= BBREACHED) */
3185         } /* for basic block */
3186
3187         dseg_createlinenumbertable(cd);
3188
3189         /* generate stubs */
3190
3191         emit_exception_stubs(jd);
3192         emit_patcher_stubs(jd);
3193         emit_replacement_stubs(jd);
3194
3195         codegen_finish(jd);
3196
3197         /* everything's ok */
3198
3199         return true;
3200 }
3201
3202
3203 /* createcompilerstub **********************************************************
3204
3205    Creates a stub routine which calls the compiler.
3206
3207 *******************************************************************************/
3208
3209 #define COMPILERSTUB_DATASIZE    3 * SIZEOF_VOID_P
3210 #define COMPILERSTUB_CODESIZE    4 * 4
3211
3212 #define COMPILERSTUB_SIZE        COMPILERSTUB_DATASIZE + COMPILERSTUB_CODESIZE
3213
3214
3215 u1 *createcompilerstub(methodinfo *m)
3216 {
3217         u1          *s;                     /* memory to hold the stub            */
3218         ptrint      *d;
3219         codeinfo    *code;
3220         codegendata *cd;
3221         s4           dumpsize;
3222
3223         s = CNEW(u1, COMPILERSTUB_SIZE);
3224
3225         /* set data pointer and code pointer */
3226
3227         d = (ptrint *) s;
3228         s = s + COMPILERSTUB_DATASIZE;
3229
3230         /* mark start of dump memory area */
3231
3232         dumpsize = dump_size();
3233
3234         cd = DNEW(codegendata);
3235         cd->mcodeptr = s;
3236
3237         /* Store the codeinfo pointer in the same place as in the
3238            methodheader for compiled methods. */
3239
3240         code = code_codeinfo_new(m);
3241
3242         d[0] = (ptrint) asm_call_jit_compiler;
3243         d[1] = (ptrint) m;
3244         d[2] = (ptrint) code;
3245
3246         M_ALD_INTERN(REG_ITMP1, REG_PV, -2 * SIZEOF_VOID_P);
3247         M_ALD_INTERN(REG_PV, REG_PV, -3 * SIZEOF_VOID_P);
3248         M_MTCTR(REG_PV);
3249         M_RTS;
3250
3251         md_cacheflush((u1 *) d, COMPILERSTUB_SIZE);
3252
3253 #if defined(ENABLE_STATISTICS)
3254         if (opt_stat)
3255                 count_cstub_len += COMPILERSTUB_SIZE;
3256 #endif
3257
3258         /* release dump area */
3259
3260         dump_release(dumpsize);
3261
3262         return s;
3263 }
3264
3265
3266 /* createnativestub ************************************************************
3267
3268    Creates a stub routine which calls a native method.
3269
3270 *******************************************************************************/
3271
3272 u1 *createnativestub(functionptr f, jitdata *jd, methoddesc *nmd)
3273 {
3274         methodinfo   *m;
3275         codeinfo     *code;
3276         codegendata  *cd;
3277         registerdata *rd;
3278         methoddesc   *md;
3279         s4            nativeparams;
3280         s4            i, j;                 /* count variables                    */
3281         s4            t;
3282         s4            s1, s2, disp;
3283         s4            funcdisp;
3284
3285         /* get required compiler data */
3286
3287         m    = jd->m;
3288         code = jd->code;
3289         cd   = jd->cd;
3290         rd   = jd->rd;
3291
3292         /* set some variables */
3293
3294         md = m->parseddesc;
3295         nativeparams = (m->flags & ACC_STATIC) ? 2 : 1;
3296
3297         /* calculate stackframe size */
3298
3299         cd->stackframesize =
3300                 sizeof(stackframeinfo) / SIZEOF_VOID_P +
3301                 sizeof(localref_table) / SIZEOF_VOID_P +
3302                 4 +                             /* 4 stackframeinfo arguments (darwin)*/
3303                 nmd->paramcount * 2 +           /* assume all arguments are doubles   */
3304                 nmd->memuse;
3305
3306         /* keep stack 16-byte aligned */
3307
3308         cd->stackframesize = (cd->stackframesize + 3) & ~3;
3309
3310         /* create method header */
3311
3312         (void) dseg_add_unique_address(cd, code);              /* CodeinfoPointer */
3313         (void) dseg_add_unique_s4(cd, cd->stackframesize * 4); /* FrameSize       */
3314         (void) dseg_add_unique_s4(cd, 0);                      /* IsSync          */
3315         (void) dseg_add_unique_s4(cd, 0);                      /* IsLeaf          */
3316         (void) dseg_add_unique_s4(cd, 0);                      /* IntSave         */
3317         (void) dseg_add_unique_s4(cd, 0);                      /* FltSave         */
3318         (void) dseg_addlinenumbertablesize(cd);
3319         (void) dseg_add_unique_s4(cd, 0);                      /* ExTableSize     */
3320
3321         /* generate code */
3322
3323         M_MFLR(REG_ZERO);
3324         M_AST_INTERN(REG_ZERO, REG_SP, LA_LR_OFFSET);
3325         M_STWU(REG_SP, REG_SP, -(cd->stackframesize * 4));
3326
3327         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
3328                 emit_verbosecall_enter(jd);
3329
3330         /* get function address (this must happen before the stackframeinfo) */
3331
3332         funcdisp = dseg_add_functionptr(cd, f);
3333
3334 #if !defined(WITH_STATIC_CLASSPATH)
3335         if (f == NULL) {
3336                 codegen_addpatchref(cd, PATCHER_resolve_native_function, m, funcdisp);
3337
3338                 if (opt_showdisassemble)
3339                         M_NOP;
3340         }
3341 #endif
3342
3343         /* save integer and float argument registers */
3344
3345         j = 0;
3346
3347         for (i = 0; i < md->paramcount; i++) {
3348                 t = md->paramtypes[i].type;
3349
3350                 if (IS_INT_LNG_TYPE(t)) {
3351                         if (!md->params[i].inmemory) {
3352                                 s1 = md->params[i].regoff;
3353                                 if (IS_2_WORD_TYPE(t)) {
3354                                         M_IST(rd->argintregs[GET_HIGH_REG(s1)], REG_SP, LA_SIZE + 4 * 4 + j * 4);
3355                                         j++;
3356                                         M_IST(rd->argintregs[GET_LOW_REG(s1)], REG_SP, LA_SIZE + 4 * 4 + j * 4);
3357                                 } else {
3358                                         M_IST(rd->argintregs[s1], REG_SP, LA_SIZE + 4 * 4 + j * 4);
3359                                 }
3360                                 j++;
3361                         }
3362                 }
3363         }
3364
3365         for (i = 0; i < md->paramcount; i++) {
3366                 if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
3367                         if (!md->params[i].inmemory) {
3368                                 s1 = md->params[i].regoff;
3369                                 M_DST(rd->argfltregs[s1], REG_SP, LA_SIZE + 4 * 4 + j * 8);
3370                                 j++;
3371                         }
3372                 }
3373         }
3374
3375         /* create native stack info */
3376
3377         M_AADD_IMM(REG_SP, cd->stackframesize * 4, REG_A0);
3378         M_MOV(REG_PV, REG_A1);
3379         M_AADD_IMM(REG_SP, cd->stackframesize * 4, REG_A2);
3380         M_ALD(REG_A3, REG_SP, cd->stackframesize * 4 + LA_LR_OFFSET);
3381         disp = dseg_add_functionptr(cd, codegen_start_native_call);
3382         M_ALD(REG_ITMP1, REG_PV, disp);
3383         M_MTCTR(REG_ITMP1);
3384         M_JSR;
3385
3386         /* restore integer and float argument registers */
3387
3388         j = 0;
3389
3390         for (i = 0; i < md->paramcount; i++) {
3391                 t = md->paramtypes[i].type;
3392
3393                 if (IS_INT_LNG_TYPE(t)) {
3394                         if (!md->params[i].inmemory) {
3395                                 s1 = md->params[i].regoff;
3396
3397                                 if (IS_2_WORD_TYPE(t)) {
3398                                         M_ILD(rd->argintregs[GET_HIGH_REG(s1)], REG_SP, LA_SIZE + 4 * 4 + j * 4);
3399                                         j++;
3400                                         M_ILD(rd->argintregs[GET_LOW_REG(s1)], REG_SP, LA_SIZE + 4 * 4 + j * 4);
3401                                 } else {
3402                                         M_ILD(rd->argintregs[s1], REG_SP, LA_SIZE + 4 * 4 + j * 4);
3403                                 }
3404                                 j++;
3405                         }
3406                 }
3407         }
3408
3409         for (i = 0; i < md->paramcount; i++) {
3410                 if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
3411                         if (!md->params[i].inmemory) {
3412                                 s1 = md->params[i].regoff;
3413                                 M_DLD(rd->argfltregs[s1], REG_SP, LA_SIZE + 4 * 4 + j * 8);
3414                                 j++;
3415                         }
3416                 }
3417         }
3418
3419         /* copy or spill arguments to new locations */
3420
3421         for (i = md->paramcount - 1, j = i + nativeparams; i >= 0; i--, j--) {
3422                 t = md->paramtypes[i].type;
3423
3424                 if (IS_INT_LNG_TYPE(t)) {
3425                         if (!md->params[i].inmemory) {
3426                                 if (IS_2_WORD_TYPE(t))
3427                                         s1 = PACK_REGS(
3428                                                 rd->argintregs[GET_LOW_REG(md->params[i].regoff)],
3429                                             rd->argintregs[GET_HIGH_REG(md->params[i].regoff)]);
3430                                 else
3431                                         s1 = rd->argintregs[md->params[i].regoff];
3432
3433                                 if (!nmd->params[j].inmemory) {
3434                                         if (IS_2_WORD_TYPE(t)) {
3435                                                 s2 = PACK_REGS(
3436                                                    rd->argintregs[GET_LOW_REG(nmd->params[j].regoff)],
3437                                                    rd->argintregs[GET_HIGH_REG(nmd->params[j].regoff)]);
3438                                                 M_LNGMOVE(s1, s2);
3439                                         } else {
3440                                                 s2 = rd->argintregs[nmd->params[j].regoff];
3441                                                 M_INTMOVE(s1, s2);
3442                                         }
3443
3444                                 } else {
3445                                         s2 = nmd->params[j].regoff;
3446                                         if (IS_2_WORD_TYPE(t))
3447                                                 M_LST(s1, REG_SP, s2 * 4);
3448                                         else
3449                                                 M_IST(s1, REG_SP, s2 * 4);
3450                                 }
3451
3452                         } else {
3453                                 s1 = md->params[i].regoff + cd->stackframesize;
3454                                 s2 = nmd->params[j].regoff;
3455
3456                                 M_ILD(REG_ITMP1, REG_SP, s1 * 4);
3457                                 if (IS_2_WORD_TYPE(t))
3458                                         M_ILD(REG_ITMP2, REG_SP, s1 * 4 + 4);
3459
3460                                 M_IST(REG_ITMP1, REG_SP, s2 * 4);
3461                                 if (IS_2_WORD_TYPE(t))
3462                                         M_IST(REG_ITMP2, REG_SP, s2 * 4 + 4);
3463                         }
3464
3465                 } else {
3466                         /* We only copy spilled float arguments, as the float
3467                            argument registers keep unchanged. */
3468
3469                         if (md->params[i].inmemory) {
3470                                 s1 = md->params[i].regoff + cd->stackframesize;
3471                                 s2 = nmd->params[j].regoff;
3472
3473                                 if (IS_2_WORD_TYPE(t)) {
3474                                         M_DLD(REG_FTMP1, REG_SP, s1 * 4);
3475                                         M_DST(REG_FTMP1, REG_SP, s2 * 4);
3476
3477                                 } else {
3478                                         M_FLD(REG_FTMP1, REG_SP, s1 * 4);
3479                                         M_FST(REG_FTMP1, REG_SP, s2 * 4);
3480                                 }
3481                         }
3482                 }
3483         }
3484
3485         /* put class into second argument register */
3486
3487         if (m->flags & ACC_STATIC) {
3488                 disp = dseg_add_address(cd, m->class);
3489                 M_ALD(REG_A1, REG_PV, disp);
3490         }
3491
3492         /* put env into first argument register */
3493
3494         disp = dseg_add_address(cd, _Jv_env);
3495         M_ALD(REG_A0, REG_PV, disp);
3496
3497         /* generate the actual native call */
3498
3499         M_ALD(REG_ITMP3, REG_PV, funcdisp);
3500         M_MTCTR(REG_ITMP3);
3501         M_JSR;
3502
3503         /* print call trace */
3504
3505         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
3506                 emit_verbosecall_exit(jd);
3507
3508         /* save return value */
3509
3510         if (md->returntype.type != TYPE_VOID) {
3511                 if (IS_INT_LNG_TYPE(md->returntype.type)) {
3512                         if (IS_2_WORD_TYPE(md->returntype.type))
3513                                 M_IST(REG_RESULT2, REG_SP, LA_SIZE + 2 * 4);
3514                         M_IST(REG_RESULT, REG_SP, LA_SIZE + 1 * 4);
3515                 }
3516                 else {
3517                         if (IS_2_WORD_TYPE(md->returntype.type))
3518                                 M_DST(REG_FRESULT, REG_SP, LA_SIZE + 1 * 4);
3519                         else
3520                                 M_FST(REG_FRESULT, REG_SP, LA_SIZE + 1 * 4);
3521                 }
3522         }
3523
3524         /* remove native stackframe info */
3525
3526         M_AADD_IMM(REG_SP, cd->stackframesize * 4, REG_A0);
3527         disp = dseg_add_functionptr(cd, codegen_finish_native_call);
3528         M_ALD(REG_ITMP1, REG_PV, disp);
3529         M_MTCTR(REG_ITMP1);
3530         M_JSR;
3531         M_MOV(REG_RESULT, REG_ITMP1_XPTR);
3532
3533         /* restore return value */
3534
3535         if (md->returntype.type != TYPE_VOID) {
3536                 if (IS_INT_LNG_TYPE(md->returntype.type)) {
3537                         if (IS_2_WORD_TYPE(md->returntype.type))
3538                                 M_ILD(REG_RESULT2, REG_SP, LA_SIZE + 2 * 4);
3539                         M_ILD(REG_RESULT, REG_SP, LA_SIZE + 1 * 4);
3540                 }
3541                 else {
3542                         if (IS_2_WORD_TYPE(md->returntype.type))
3543                                 M_DLD(REG_FRESULT, REG_SP, LA_SIZE + 1 * 4);
3544                         else
3545                                 M_FLD(REG_FRESULT, REG_SP, LA_SIZE + 1 * 4);
3546                 }
3547         }
3548
3549         M_ALD(REG_ITMP2_XPC, REG_SP, cd->stackframesize * 4 + LA_LR_OFFSET);
3550         M_MTLR(REG_ITMP2_XPC);
3551         M_LDA(REG_SP, REG_SP, cd->stackframesize * 4); /* remove stackframe       */
3552
3553         /* check for exception */
3554
3555         M_TST(REG_ITMP1_XPTR);
3556         M_BNE(1);                           /* if no exception then return        */
3557
3558         M_RET;
3559
3560         /* handle exception */
3561
3562         M_IADD_IMM(REG_ITMP2_XPC, -4, REG_ITMP2_XPC);  /* exception address       */
3563
3564         disp = dseg_add_functionptr(cd, asm_handle_nat_exception);
3565         M_ALD(REG_ITMP3, REG_PV, disp);
3566         M_MTCTR(REG_ITMP3);
3567         M_RTS;
3568
3569         /* generate patcher stubs */
3570
3571         emit_patcher_stubs(jd);
3572
3573         codegen_finish(jd);
3574
3575         return code->entrypoint;
3576 }
3577
3578
3579 /*
3580  * These are local overrides for various environment variables in Emacs.
3581  * Please do not remove this and leave it at the end of the file, where
3582  * Emacs will automagically detect them.
3583  * ---------------------------------------------------------------------
3584  * Local variables:
3585  * mode: c
3586  * indent-tabs-mode: t
3587  * c-basic-offset: 4
3588  * tab-width: 4
3589  * End:
3590  * vim:noexpandtab:sw=4:ts=4:
3591  */