src/vm/jit/powerpc64/codegen.c

   1 /* src/vm/jit/powerpc64/codegen.c - machine code generator for 64-bit PowerPC
   2
   3    Copyright (C) 1996-2005, 2006, 2007 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    $Id: codegen.c 7891 2007-05-09 16:37:20Z tbfg $
  26
  27 */
  28
  29
  30 #include "config.h"
  31
  32 #include <assert.h>
  33 #include <stdio.h>
  34 #include <signal.h>
  35
  36 #include "vm/types.h"
  37
  38 #include "md-abi.h"
  39
  40 #include "vm/jit/powerpc64/arch.h"
  41 #include "vm/jit/powerpc64/codegen.h"
  42
  43 #include "mm/memory.h"
  44
  45 #include "native/native.h"
  46
  47 #include "threads/lock-common.h"
  48
  49 #include "vm/builtin.h"
  50 #include "vm/exceptions.h"
  51 #include "vm/global.h"
  52 #include "vm/stringlocal.h"
  53 #include "vm/vm.h"
  54
  55 #include "vm/jit/abi.h"
  56 #include "vm/jit/abi-asm.h"
  57 #include "vm/jit/md.h"
  58 #include "vm/jit/asmpart.h"
  59 #include "vm/jit/codegen-common.h"
  60 #include "vm/jit/dseg.h"
  61 #include "vm/jit/emit-common.h"
  62 #include "vm/jit/jit.h"
  63 #include "vm/jit/parse.h"
  64 #include "vm/jit/patcher.h"
  65 #include "vm/jit/reg.h"
  66 #include "vm/jit/replace.h"
  67 #include "vm/jit/stacktrace.h"
  68
  69 #include "vmcore/loader.h"
  70 #include "vmcore/options.h"
  71
  72 #if defined(ENABLE_LSRA)
  73 # include "vm/jit/allocator/lsra.h"
  74 #endif
  75
  76
  77 /* codegen_emit ****************************************************************
  78
  79    Generates machine code.
  80
  81 *******************************************************************************/
  82
  83 bool codegen_emit(jitdata *jd)
  84 {
  85         methodinfo         *m;
  86         codeinfo           *code;
  87         codegendata        *cd;
  88         registerdata       *rd;
  89         s4                  len, s1, s2, s3, d, disp;
  90         ptrint              a;
  91         varinfo            *var;
  92         basicblock         *bptr;
  93         instruction        *iptr;
  94         exception_entry    *ex;
  95         u2                  currentline;
  96         methodinfo         *lm;             /* local methodinfo for ICMD_INVOKE*  */
  97         unresolved_method  *um;
  98         builtintable_entry *bte;
  99         methoddesc         *md;
 100         s4                  fieldtype;
 101         s4                  varindex;
 102         unresolved_field   *uf;
 103         fieldinfo          *fi;
 104
 105         /* get required compiler data */
 106
 107         m    = jd->m;
 108         code = jd->code;
 109         cd   = jd->cd;
 110         rd   = jd->rd;
 111
 112         /* prevent compiler warnings */
 113
 114         d = 0;
 115         lm = NULL;
 116         bte = NULL;
 117
 118         {
 119         s4 i, p, t, l;
 120         s4 savedregs_num;
 121
 122         savedregs_num = 0;
 123
 124         /* space to save used callee saved registers */
 125
 126         savedregs_num += (INT_SAV_CNT - rd->savintreguse);
 127         savedregs_num += (FLT_SAV_CNT - rd->savfltreguse);
 128
 129         cd->stackframesize = rd->memuse + savedregs_num;
 130
 131 #if defined(ENABLE_THREADS)
 132         /* space to save argument of monitor_enter and Return Values to survive */
 133     /* monitor_exit. The stack position for the argument can not be shared  */
 134         /* with place to save the return register on PPC64, since both values     */
 135         /* reside in R3 */
 136         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
 137                 /* reserve 2 slots for long/double return values for monitorexit */
 138                 cd->stackframesize += 2;
 139         }
 140
 141 #endif
 142
 143         /* create method header */
 144
 145         /* align stack to 16-bytes */
 146
 147 /* FIXME */
 148 /*      if (!m->isleafmethod || opt_verbosecall) */
 149 /*              stackframesize = (stackframesize + 3) & ~3;
 150 */
 151 /*      else if (m->isleafmethod && (stackframesize == LA_WORD_SIZE)) */
 152 /*              stackframesize = 0; */
 153
 154         (void) dseg_add_unique_address(cd, code);                      /* CodeinfoPointer */
 155         (void) dseg_add_unique_s4(cd, cd->stackframesize * 8);             /* FrameSize       */
 156
 157 #if defined(ENABLE_THREADS)
 158         /* IsSync contains the offset relative to the stack pointer for the
 159            argument of monitor_exit used in the exception handler. Since the
 160            offset could be zero and give a wrong meaning of the flag it is
 161            offset by one.
 162         */
 163
 164         if (checksync && (m->flags & ACC_SYNCHRONIZED))
 165                 (void) dseg_add_unique_s4(cd, (rd->memuse + 1) * 8);       /* IsSync          */
 166         else
 167 #endif
 168                 (void) dseg_add_unique_s4(cd, 0);                          /* IsSync          */
 169
 170         (void) dseg_add_unique_s4(cd, jd->isleafmethod);                /* IsLeaf          */
 171         (void) dseg_add_unique_s4(cd, INT_SAV_CNT - rd->savintreguse); /* IntSave         */
 172         (void) dseg_add_unique_s4(cd, FLT_SAV_CNT - rd->savfltreguse); /* FltSave         */
 173
 174         dseg_addlinenumbertablesize(cd);
 175
 176         (void) dseg_add_unique_s4(cd, jd->exceptiontablelength);       /* ExTableSize     */
 177
 178         /* create exception table */
 179
 180         for (ex = jd->exceptiontable; ex != NULL; ex = ex->down) {
 181                 dseg_add_target(cd, ex->start);
 182                 dseg_add_target(cd, ex->end);
 183                 dseg_add_target(cd, ex->handler);
 184                 (void) dseg_add_unique_address(cd, ex->catchtype.any);
 185         }
 186
 187         /* create stack frame (if necessary) */
 188
 189         if (!jd->isleafmethod) {
 190                 M_MFLR(REG_ZERO);
 191                 M_AST(REG_ZERO, REG_SP, LA_LR_OFFSET);
 192         }
 193
 194         if (cd->stackframesize)
 195                 M_STDU(REG_SP, REG_SP, -cd->stackframesize * 8);
 196
 197         /* save return address and used callee saved registers */
 198
 199         p = cd->stackframesize;
 200         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
 201                 p--; M_LST(rd->savintregs[i], REG_SP, p * 8);
 202         }
 203         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
 204                 p --; M_DST(rd->savfltregs[i], REG_SP, p * 8);
 205         }
 206
 207         /* take arguments out of register or stack frame */
 208
 209         md = m->parseddesc;
 210
 211         for (p = 0, l = 0; p < md->paramcount; p++) {
 212                 t = md->paramtypes[p].type;
 213                 varindex = jd->local_map[l*5 + t];
 214                 l++;
 215                 if (IS_2_WORD_TYPE(t))    /* increment local counter for 2 word types */
 216                         l++;
 217                 if (varindex == UNUSED)
 218                         continue;
 219
 220                 var = VAR(varindex);
 221                 s1  = md->params[p].regoff;
 222
 223                 if (IS_INT_LNG_TYPE(t)) {
 224                         if (!md->params[p].inmemory) {
 225                                 if (!IS_INMEMORY(var->flags))
 226                                         M_INTMOVE(s1, var->vv.regoff);
 227                                 else
 228                                         M_LST(s1, REG_SP, var->vv.regoff * 8);
 229                         }
 230                         else {
 231                                 if (!IS_INMEMORY(var->flags))
 232                                         M_LLD(var->vv.regoff, REG_SP, (cd->stackframesize + s1) * 8);
 233                                 else
 234                                         var->vv.regoff = cd->stackframesize + s1;
 235                         }
 236                 }
 237                 else {
 238                         if (!md->params[p].inmemory) {
 239                                 if (!IS_INMEMORY(var->flags))
 240                                         M_FLTMOVE(s1, var->vv.regoff);
 241                                 else
 242                                         M_DST(s1, REG_SP, var->vv.regoff * 8);
 243                         }
 244                         else {
 245                                 if (!(var->flags & INMEMORY)) {
 246                                         if (IS_2_WORD_TYPE(t))
 247                                                 M_DLD(var->vv.regoff, REG_SP, (cd->stackframesize + s1) * 8);
 248                                         else
 249                                                 M_DLD(var->vv.regoff, REG_SP, (cd->stackframesize + s1) * 8);
 250                                 }
 251                                 else
 252                                         var->vv.regoff = cd->stackframesize + s1;
 253                         }
 254                 }
 255         }
 256
 257         /* save monitorenter argument */
 258
 259 #if defined(ENABLE_THREADS)
 260
 261         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
 262
 263                 /* stackoffset for argument used for LOCK_monitor_exit */
 264                 s1 = rd->memuse;
 265
 266 #if !defined (NDEBUG)
 267                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 268                         M_AADD_IMM(REG_SP, -((LA_SIZE_IN_POINTERS + PA_SIZE_IN_POINTERS + ARG_CNT) * 8), REG_SP);
 269
 270                         for (p = 0; p < INT_ARG_CNT; p++)
 271                                 M_LST(abi_registers_integer_argument[p], REG_SP, LA_SIZE + PA_SIZE + p * 8);
 272
 273                         for (p = 0; p < FLT_ARG_CNT; p++)
 274                                 M_DST(abi_registers_float_argument[p], REG_SP, LA_SIZE + PA_SIZE + (INT_ARG_CNT + p) * 8);
 275
 276                         /* used for LOCK_monitor_exit, adopt size because we created another stackframe */
 277                         s1 += (LA_SIZE_IN_POINTERS + PA_SIZE_IN_POINTERS + ARG_CNT);
 278                 }
 279 #endif
 280
 281                 p = dseg_add_functionptr(cd, LOCK_monitor_enter);
 282                 M_ALD(REG_ITMP3, REG_PV, p);
 283                 M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
 284                 M_MTCTR(REG_ITMP3);
 285
 286                 /* get or test the lock object */
 287
 288                 if (m->flags & ACC_STATIC) {
 289                         p = dseg_add_address(cd, &m->class->object.header);
 290                         M_ALD(REG_A0, REG_PV, p);
 291                 }
 292                 else {
 293                         M_TST(REG_A0);
 294                         M_BNE(1);
 295                         M_ALD_INTERN(REG_ZERO, REG_ZERO, EXCEPTION_HARDWARE_NULLPOINTER);
 296                 }
 297
 298                 M_AST(REG_A0, REG_SP, s1 * 8);                      /* rd->memuse * 8 */
 299                 M_JSR;
 300
 301 #if !defined(NDEBUG)
 302                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 303                         for (p = 0; p < INT_ARG_CNT; p++)
 304                                 M_LLD(abi_registers_integer_argument[p], REG_SP, LA_SIZE + PA_SIZE + p * 8);
 305
 306                         for (p = 0; p < FLT_ARG_CNT; p++)
 307                                 M_DLD(abi_registers_float_argument[p], REG_SP, LA_SIZE + PA_SIZE + (INT_ARG_CNT + p) * 8);
 308
 309                         M_AADD_IMM(REG_SP, (LA_SIZE_IN_POINTERS + PA_SIZE_IN_POINTERS + ARG_CNT) * 8, REG_SP);
 310                 }
 311 #endif
 312         }
 313 #endif
 314
 315         /* call trace function */
 316 #if !defined (NDEBUG)
 317         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
 318                 emit_verbosecall_enter(jd);
 319
 320         }
 321 #endif
 322
 323         /* end of header generation */
 324
 325         /* create replacement points */
 326
 327         REPLACEMENT_POINTS_INIT(cd, jd);
 328
 329         /* walk through all basic blocks */
 330
 331         for (bptr = jd->basicblocks; bptr != NULL; bptr = bptr->next) {
 332
 333                 bptr->mpc = (s4) (cd->mcodeptr - cd->mcodebase);
 334
 335                 if (bptr->flags >= BBREACHED) {
 336
 337                 /* branch resolving */
 338                 codegen_resolve_branchrefs(cd, bptr);
 339
 340                 /* handle replacement points */
 341
 342                 REPLACEMENT_POINT_BLOCK_START(cd, bptr);
 343
 344                 /* copy interface registers to their destination */
 345
 346                 len = bptr->indepth;
 347                 MCODECHECK(64+len);
 348
 349 #if defined(ENABLE_LSRA)
 350                 if (opt_lsra) {
 351                         while (len) {
 352                                 len--;
 353                                 var = VAR(bptr->invars[len]);
 354                                 if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 355                                         /* d = reg_of_var(m, var, REG_ITMP1); */
 356                                         if (!(var->flags & INMEMORY))
 357                                                 d = var->vv.regoff;
 358                                         else
 359                                                 d = REG_ITMP1;
 360                                         M_INTMOVE(REG_ITMP1, d);
 361                                         emit_store(jd, NULL, var, d);
 362                                 }
 363                         }
 364                 } else {
 365 #endif
 366                 while (len) {
 367                         len--;
 368                         var = VAR(bptr->invars[len]);
 369                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 370                                 d = codegen_reg_of_var(0, var, REG_ITMP1);
 371                                 M_INTMOVE(REG_ITMP1, d);
 372                                 emit_store(jd, NULL, var, d);
 373                         }
 374                         else {
 375                                 assert((var->flags & INOUT));
 376                         }
 377                 }
 378
 379 #if defined(ENABLE_LSRA)
 380                 }
 381 #endif
 382                 /* walk through all instructions */
 383
 384                 len = bptr->icount;
 385                 currentline = 0;
 386
 387                 for (iptr = bptr->iinstr; len > 0; len--, iptr++) {
 388                         if (iptr->line != currentline) {
 389                                 dseg_addlinenumber(cd, iptr->line);
 390                                 currentline = iptr->line;
 391                         }
 392
 393                         MCODECHECK(64);   /* an instruction usually needs < 64 words      */
 394
 395                 switch (iptr->opc) {
 396                 case ICMD_NOP:        /* ...  ==> ...                                 */
 397                 case ICMD_POP:        /* ..., value  ==> ...                          */
 398                 case ICMD_POP2:       /* ..., value, value  ==> ...                   */
 399                         break;
 400
 401                 case ICMD_INLINE_START:
 402
 403                         REPLACEMENT_POINT_INLINE_START(cd, iptr);
 404                         break;
 405
 406                 case ICMD_INLINE_BODY:
 407
 408                         REPLACEMENT_POINT_INLINE_BODY(cd, iptr);
 409                         dseg_addlinenumber_inline_start(cd, iptr);
 410                         dseg_addlinenumber(cd, iptr->line);
 411                         break;
 412
 413                 case ICMD_INLINE_END:
 414
 415                         dseg_addlinenumber_inline_end(cd, iptr);
 416                         dseg_addlinenumber(cd, iptr->line);
 417                         break;
 418
 419                 case ICMD_CHECKNULL:  /* ..., objectref  ==> ..., objectref           */
 420
 421                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 422                         M_TST(s1);
 423                         M_BEQ(0);
 424                         emit_nullpointer_check(cd, iptr, s1);
 425                         break;
 426
 427                 /* constant operations ************************************************/
 428
 429                 case ICMD_ICONST:     /* ...  ==> ..., constant                       */
 430
 431                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 432                         ICONST(d, iptr->sx.val.i);
 433                         emit_store_dst(jd, iptr, d);
 434                         break;
 435
 436                 case ICMD_LCONST:     /* ...  ==> ..., constant                       */
 437
 438                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 439                         LCONST(d, iptr->sx.val.l);
 440                         emit_store_dst(jd, iptr, d);
 441                         break;
 442
 443                 case ICMD_FCONST:     /* ...  ==> ..., constant                       */
 444
 445                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 446                         a = dseg_add_float(cd, iptr->sx.val.f);
 447                         M_FLD(d, REG_PV, a);
 448                         emit_store_dst(jd, iptr, d);
 449                         break;
 450
 451                 case ICMD_DCONST:     /* ...  ==> ..., constant                       */
 452
 453                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 454                         a = dseg_add_double(cd, iptr->sx.val.d);
 455                         M_DLD(d, REG_PV, a);
 456                         emit_store_dst(jd, iptr, d);
 457                         break;
 458
 459                 case ICMD_ACONST:     /* ...  ==> ..., constant                       */
 460
 461                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 462
 463                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
 464                                 disp = dseg_add_unique_address(cd, iptr->sx.val.c.ref);
 465                                 codegen_addpatchref(cd, PATCHER_aconst,
 466                                                                         iptr->sx.val.c.ref,
 467                                                                     disp);
 468                         } else  {
 469                                 disp = dseg_add_address(cd, iptr->sx.val.anyptr);
 470                         }
 471                         M_ALD(d, REG_PV, disp);
 472                         emit_store_dst(jd, iptr, d);
 473                         break;
 474
 475
 476                 /* load/store/copy/move operations ************************************/
 477
 478                 case ICMD_ILOAD:      /* ...  ==> ..., content of local variable      */
 479                 case ICMD_ALOAD:      /* s1.localindex = local variable               */
 480                 case ICMD_LLOAD:
 481                 case ICMD_FLOAD:
 482                 case ICMD_DLOAD:
 483                 case ICMD_ISTORE:     /* ..., value  ==> ...                          */
 484                 case ICMD_LSTORE:
 485                 case ICMD_FSTORE:
 486                 case ICMD_DSTORE:
 487                 case ICMD_COPY:
 488                 case ICMD_MOVE:
 489
 490                         emit_copy(jd, iptr);
 491                         break;
 492
 493                 case ICMD_ASTORE:
 494                         if (!(iptr->flags.bits & INS_FLAG_RETADDR))
 495                                 emit_copy(jd, iptr);
 496                         break;
 497
 498
 499                 /* integer operations *************************************************/
 500
 501                 case ICMD_INEG:       /* ..., value  ==> ..., - value                 */
 502                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 503                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 504                         M_NEG(s1, d);
 505                         M_EXTSW(d, d);
 506                         emit_store_dst(jd, iptr, d);
 507                         break;
 508
 509                 case ICMD_LNEG:
 510                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 511                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 512                         M_NEG(s1, d);
 513                         emit_store_dst(jd, iptr, d);
 514                         break;
 515
 516
 517                 case ICMD_I2L:        /* ..., value  ==> ..., value                   */
 518
 519                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 520                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 521                         M_INTMOVE(s1, d);
 522                         emit_store_dst(jd, iptr, d);
 523                         break;
 524
 525                 case ICMD_L2I:        /* ..., value  ==> ..., value                   */
 526
 527                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 528                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 529                         M_ISEXT(s1, d);
 530                         emit_store_dst(jd, iptr, d);
 531                         break;
 532
 533                 case ICMD_INT2BYTE:   /* ..., value  ==> ..., value                   */
 534
 535                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 536                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 537                         M_BSEXT(s1, d);
 538                         emit_store_dst(jd, iptr, d);
 539                         break;
 540
 541                 case ICMD_INT2CHAR:   /* ..., value  ==> ..., value                   */
 542
 543                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 544                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 545                         M_CZEXT(s1, d);
 546                         emit_store_dst(jd, iptr, d);
 547                         break;
 548
 549                 case ICMD_INT2SHORT:  /* ..., value  ==> ..., value                   */
 550
 551                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 552                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 553                         M_SSEXT(s1, d);
 554                         emit_store_dst(jd, iptr, d);
 555                         break;
 556
 557
 558                 case ICMD_IADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 559
 560                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 561                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 562                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 563                         M_IADD(s1, s2, d);
 564                         M_EXTSW(d,d);
 565                         emit_store_dst(jd, iptr, d);
 566                         break;
 567
 568                 case ICMD_IINC:
 569                 case ICMD_IADDCONST:
 570
 571                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 572                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 573                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767)) {
 574                                 M_IADD_IMM(s1, iptr->sx.val.i, d);
 575                         } else {
 576                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 577                                 M_IADD(s1, REG_ITMP2, d);
 578                         }
 579                         M_EXTSW(d,d);
 580                         emit_store_dst(jd, iptr, d);
 581                         break;
 582
 583                 case ICMD_LADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 584
 585                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 586                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 587                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 588                         M_LADD(s1, s2, d);
 589                         emit_store_dst(jd, iptr, d);
 590                         break;
 591
 592                 case ICMD_LADDCONST:  /* ..., value  ==> ..., value + constant        */
 593                                       /* sx.val.l = constant                          */
 594
 595                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 596                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 597                         /* XXX check me */
 598                         if ((iptr->sx.val.l >= -32768) && (iptr->sx.val.l <= 32767)) {
 599                                 M_LADD_IMM(s1, iptr->sx.val.l, d);
 600                         } else {
 601                                 LCONST(REG_ITMP2, iptr->sx.val.l);
 602                                 M_LADD(s1, REG_ITMP2, d);
 603                         }
 604                         emit_store_dst(jd, iptr, d);
 605                         break;
 606
 607                 case ICMD_ISUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 608
 609                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 610                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 611                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 612                         M_SUB(s1, s2, d);
 613                         M_EXTSW(d, d);
 614                         emit_store_dst(jd, iptr, d);
 615                         break;
 616
 617                 case ICMD_ISUBCONST:  /* ..., value  ==> ..., value + constant        */
 618                                       /* sx.val.i = constant                          */
 619
 620                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 621                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 622                         if ((iptr->sx.val.i >= -32767) && (iptr->sx.val.i <= 32768)) {
 623                                 M_IADD_IMM(s1, -iptr->sx.val.i, d);
 624                         } else {
 625                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 626                                 M_SUB(s1, REG_ITMP2, d);
 627                         }
 628                         M_EXTSW(d, d);
 629                         emit_store_dst(jd, iptr, d);
 630                         break;
 631
 632                 case ICMD_LSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 633
 634                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 635                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 636                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 637                         M_SUB(s1, s2, d);
 638                         emit_store_dst(jd, iptr, d);
 639                         break;
 640
 641                 case ICMD_LSUBCONST:  /* ..., value  ==> ..., value - constant        */
 642                                       /* sx.val.l = constant                          */
 643
 644                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 645                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 646                         /* XXX check me */
 647                         if ((iptr->sx.val.l >= -32767) && (iptr->sx.val.l <= 32767)) {
 648                                 M_LADD_IMM(s1, -iptr->sx.val.l, d);
 649                         } else {
 650                                 LCONST(REG_ITMP2, iptr->sx.val.l);
 651                                 M_SUB(s1, REG_ITMP2, d);
 652                         }
 653                         emit_store_dst(jd, iptr, d);
 654                         break;
 655
 656                 case ICMD_IDIV:
 657                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 658                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 659                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 660                         emit_arithmetic_check(cd, iptr, s2);
 661
 662                         M_DIV(s1, s2, d);
 663                         M_EXTSW(d, d);
 664                         emit_store_dst(jd, iptr, d);
 665                         break;
 666
 667                 case ICMD_LDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 668
 669                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 670                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 671                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 672                         emit_arithmetic_check(cd, iptr, s2);
 673
 674                         M_DIV(s1, s2, d);
 675                         /* we need to test if divident was 0x8000000000000, bit OV is set in XER in this case */
 676                         /* we only need to check this if we did a LDIV, not for IDIV */
 677                         M_MFXER(REG_ITMP2);
 678                         M_ANDIS(REG_ITMP2, 0x4000, REG_ITMP2);  /* test OV */
 679                         M_BLE(1);
 680                         M_MOV(s1, d);                           /* java specs says result == dividend */
 681                         emit_store_dst(jd, iptr, d);
 682                         break;
 683
 684                 case ICMD_IREM:
 685                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 686                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 687                         emit_arithmetic_check(cd, iptr, s2);
 688
 689                         M_DIV(s1, s2,  REG_ITMP3);
 690                         M_MUL(REG_ITMP3, s2, REG_ITMP2);
 691                         M_SUB(s1, REG_ITMP2,  REG_ITMP3);
 692                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 693
 694                         M_MOV(REG_ITMP3, d);
 695                         emit_store_dst(jd, iptr, d);
 696                         break;
 697
 698
 699                 case ICMD_LREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 700                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 701                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 702                         emit_arithmetic_check(cd, iptr, s2);
 703
 704                         M_DIV(s1, s2,  REG_ITMP3);
 705                         /* we need to test if divident was 0x8000000000000, bit OV is set in XER in this case */
 706                         /* we only need to check this if we did a LDIV, not for IDIV */
 707                         M_MFXER(REG_ITMP2);
 708                         M_ANDIS(REG_ITMP2, 0x4000, REG_ITMP2);  /* test OV */
 709                         M_BLE(2);
 710                         LCONST(REG_ITMP3, 0);                   /* result == 0 in this case */
 711                         M_BR(2);
 712                         M_MUL(REG_ITMP3, s2, REG_ITMP2);
 713                         M_SUB(s1, REG_ITMP2,  REG_ITMP3);
 714                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 715
 716                         M_MOV(REG_ITMP3, d);
 717                         emit_store_dst(jd, iptr, d);
 718                         break;
 719
 720
 721                 case ICMD_IMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 722                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 723                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 724                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 725                         M_MUL(s1, s2, d);
 726                         M_EXTSW(d, d);
 727                         emit_store_dst(jd, iptr, d);
 728                         break;
 729
 730                 case ICMD_LMUL:
 731                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 732                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 733                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 734                         M_MUL(s1, s2, d);
 735                         emit_store_dst(jd, iptr, d);
 736                         break;
 737
 738                 case ICMD_IMULCONST:  /* ..., value  ==> ..., value * constant        */
 739                                       /* sx.val.i = constant                          */
 740
 741                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 742                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 743                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767))
 744                                 M_MUL_IMM(s1, iptr->sx.val.i, d);
 745                         else {
 746                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 747                                 M_MUL(s1, REG_ITMP3, d);
 748                         }
 749                         M_EXTSW(d, d);
 750                         emit_store_dst(jd, iptr, d);
 751                         break;
 752                 case ICMD_LMULCONST:
 753                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 754                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 755                         if ((iptr->sx.val.l >= -32767) && (iptr->sx.val.l <= 32767))
 756                                 M_MUL_IMM(s1, iptr->sx.val.l, d);
 757                         else {
 758                                 LCONST(REG_ITMP3, iptr->sx.val.l);
 759                                 M_MUL(s1, REG_ITMP3, d);
 760                         }
 761                         emit_store_dst(jd, iptr, d);
 762                         break;
 763
 764                 case ICMD_IDIVPOW2:   /* ..., value  ==> ..., value << constant       */
 765
 766                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 767                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 768                         M_SRA_IMM(s1, iptr->sx.val.i, d);
 769                         M_ADDZE(d, d);
 770                         M_EXTSW(d, d);
 771                         emit_store_dst(jd, iptr, d);
 772                         break;
 773
 774                 case ICMD_ISHL:       /* ..., val1, val2  ==> ..., val1 << val2       */
 775
 776                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 777                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 778                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 779                         M_AND_IMM(s2, 0x1f, REG_ITMP3);
 780                         M_SLL(s1, REG_ITMP3, d);
 781                         M_EXTSW(d, d);
 782                         emit_store_dst(jd, iptr, d);
 783                         break;
 784
 785                 case ICMD_ISHLCONST:  /* ..., value  ==> ..., value << constant       */
 786                                       /* sx.val.i = constant                             */
 787
 788                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 789                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 790                         M_SLL_IMM(s1, iptr->sx.val.i & 0x1f, d);
 791                         M_EXTSW(d,d);
 792                         emit_store_dst(jd, iptr, d);
 793                         break;
 794
 795                 case ICMD_ISHR:       /* ..., val1, val2  ==> ..., val1 >> val2       */
 796
 797                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 798                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 799                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 800                         M_AND_IMM(s2, 0x1f, REG_ITMP3);
 801                         M_SRA(s1, REG_ITMP3, d);
 802                         emit_store_dst(jd, iptr, d);
 803                         break;
 804
 805                 case ICMD_ISHRCONST:  /* ..., value  ==> ..., value >> constant       */
 806                                       /* sx.val.i = constant                             */
 807
 808                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 809                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 810                         M_SRA_IMM(s1, iptr->sx.val.i & 0x1f, d);
 811                         emit_store_dst(jd, iptr, d);
 812                         break;
 813
 814                 case ICMD_IUSHR:      /* ..., val1, val2  ==> ..., val1 >>> val2      */
 815
 816                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 817                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 818                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 819                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 820                         M_MOV(s1, REG_ITMP1);
 821                         M_CLR_HIGH(REG_ITMP1);
 822                         M_SRL(REG_ITMP1, REG_ITMP2, d);
 823                         M_EXTSW(d,d);   /* for the case it was shift 0 bits */
 824                         emit_store_dst(jd, iptr, d);
 825                         break;
 826
 827                 case ICMD_IUSHRCONST: /* ..., value  ==> ..., value >>> constant      */
 828                                       /* sx.val.i = constant                             */
 829
 830                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 831                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 832                         if (iptr->sx.val.i & 0x1f) {
 833                                 M_MOV(s1, REG_ITMP1);
 834                                 M_CLR_HIGH(REG_ITMP1);
 835                                 M_SRA_IMM(REG_ITMP1, iptr->sx.val.i & 0x1f, d);
 836                         } else {
 837                                 M_INTMOVE(s1, d);
 838                         }
 839                         emit_store_dst(jd, iptr, d);
 840                         break;
 841
 842                 case ICMD_LSHLCONST:
 843                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 844                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 845                         M_SLL_IMM(s1, iptr->sx.val.i & 0x3f, d);
 846                         emit_store_dst(jd, iptr, d);
 847                         break;
 848                 case ICMD_LSHL:
 849                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 850                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 851                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 852                         M_AND_IMM(s2, 0x3f, REG_ITMP2);
 853                         M_SLL(s1, REG_ITMP2, d);
 854                         emit_store_dst(jd, iptr, d);
 855                         break;
 856                 case ICMD_LSHRCONST:
 857                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 858                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 859                         M_SRA_IMM(s1, iptr->sx.val.i & 0x3f, d);
 860                         emit_store_dst(jd, iptr, d);
 861                         break;
 862                 case ICMD_LSHR:
 863                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 864                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 865                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 866                         M_AND_IMM(s2, 0x3f, REG_ITMP2);
 867                         M_SRA(s1, REG_ITMP2, d);
 868                         emit_store_dst(jd, iptr, d);
 869                         break;
 870                 case ICMD_LUSHRCONST:
 871                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 872                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 873                         M_SRL_IMM(s1, iptr->sx.val.i & 0x3f, d);
 874                         emit_store_dst(jd, iptr, d);
 875                         break;
 876                 case ICMD_LUSHR:
 877                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 878                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 879                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 880                         M_AND_IMM(s2, 0x3f, REG_ITMP2);
 881                         M_SRL(s1, REG_ITMP2, d);
 882                         emit_store_dst(jd, iptr, d);
 883                         break;
 884
 885                 case ICMD_IAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 886                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 887                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 888                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 889                         M_AND(s1, s2, d);
 890 /*                      M_EXTSW(d, d);*/
 891                         emit_store_dst(jd, iptr, d);
 892                         break;
 893
 894                 case ICMD_LAND:
 895                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 896                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 897                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 898                         M_AND(s1, s2, d);
 899                         emit_store_dst(jd, iptr, d);
 900                         break;
 901
 902                 case ICMD_IANDCONST:  /* ..., value  ==> ..., value & constant        */
 903                                       /* sx.val.i = constant                          */
 904
 905                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 906                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 907                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535)) {
 908                                 M_AND_IMM(s1, iptr->sx.val.i, d);
 909                                 }
 910                         /*
 911                         else if (iptr->sx.val.i == 0xffffff) {
 912                                 M_RLWINM(s1, 0, 8, 31, d);
 913                                 }
 914                         */
 915                         else {
 916                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 917                                 M_AND(s1, REG_ITMP3, d);
 918                         }
 919                         emit_store_dst(jd, iptr, d);
 920                         break;
 921
 922                 case ICMD_LANDCONST:  /* ..., value  ==> ..., value & constant        */
 923                                       /* sx.val.l = constant                          */
 924
 925                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 926                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 927                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
 928                                 M_AND_IMM(s1, iptr->sx.val.l, d);
 929                         /*
 930                         else if (iptr->sx.val.l == 0xffffff) {
 931                                 M_RLWINM(s1, 0, 8, 31, d);
 932                                 }
 933                         */
 934                         else {
 935                                 LCONST(REG_ITMP3, iptr->sx.val.l);
 936                                 M_AND(s1, REG_ITMP3, d);
 937                         }
 938                         emit_store_dst(jd, iptr, d);
 939                         break;
 940
 941                 case ICMD_IREMPOW2:   /* ..., value  ==> ..., value % constant        */
 942                                       /* sx.val.i = constant                             */
 943                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 944                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 945 #if 0
 946                         /* fast division, result in REG_ITMP3) */
 947                         M_SRA_IMM(s1, iptr->sx.val.i, REG_ITMP3);
 948                         M_ADDZE(REG_ITMP3, REG_ITMP3);
 949
 950                         M_SUB(s1, REG_ITMP3, d);
 951                         M_EXTSW(d, d);
 952                         emit_store_dst(jd, iptr, d);
 953                         break;
 954 #else
 955
 956                         M_MOV(s1, REG_ITMP2);
 957                         M_CMPI(s1, 0);
 958                         M_BGE(1 + 3*(iptr->sx.val.i >= 32768));
 959                         if (iptr->sx.val.i >= 32768) {
 960                                 M_ADDIS(REG_ZERO, iptr->sx.val.i >> 16, REG_ITMP2);
 961                                 M_EXTSW(REG_ITMP2, REG_ITMP2);
 962                                 M_OR_IMM(REG_ITMP2, iptr->sx.val.i, REG_ITMP2);
 963                                 M_IADD(s1, REG_ITMP2, REG_ITMP2);
 964                         } else {
 965                                 M_IADD_IMM(s1, iptr->sx.val.i, REG_ITMP2);
 966                         }
 967                         {
 968                                 int b=0, m = iptr->sx.val.i;
 969                                 while (m >>= 1)
 970                                         ++b;
 971                                 M_RLWINM(REG_ITMP2, 0, 0, 30-b, REG_ITMP2);
 972                         }
 973                         M_SUB(s1, REG_ITMP2, d);
 974                         M_EXTSW(d, d);
 975                         emit_store_dst(jd, iptr, d);
 976                         break;
 977 #endif
 978
 979                 case ICMD_IOR:        /* ..., val1, val2  ==> ..., val1 | val2        */
 980                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 981                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 982                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 983                         M_OR(s1, s2, d);
 984 /*                      M_EXTSW(d,d);*/
 985                         emit_store_dst(jd, iptr, d);
 986                         break;
 987
 988                 case ICMD_LOR:
 989
 990                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 991                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 992                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 993                         M_OR(s1, s2, d);
 994                         emit_store_dst(jd, iptr, d);
 995                         break;
 996
 997                 case ICMD_IORCONST:   /* ..., value  ==> ..., value | constant        */
 998                                       /* sx.val.i = constant                          */
 999
1000                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1001                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1002                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
1003                                 M_OR_IMM(s1, iptr->sx.val.i, d);
1004                         else {
1005                                 ICONST(REG_ITMP3, iptr->sx.val.i);
1006                                 M_OR(s1, REG_ITMP3, d);
1007                         }
1008                         emit_store_dst(jd, iptr, d);
1009                         break;
1010
1011                 case ICMD_LORCONST:   /* ..., value  ==> ..., value | constant        */
1012                                       /* sx.val.l = constant                          */
1013
1014                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1015                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1016                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
1017                                 M_OR_IMM(s1, iptr->sx.val.l, d);
1018                         else {
1019                                 LCONST(REG_ITMP3, iptr->sx.val.l);
1020                                 M_OR(s1, REG_ITMP3, d);
1021                         }
1022                         emit_store_dst(jd, iptr, d);
1023                         break;
1024
1025
1026                 case ICMD_IXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
1027                 case ICMD_LXOR:
1028
1029                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1030                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1031                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1032                         M_XOR(s1, s2, d);
1033                         emit_store_dst(jd, iptr, d);
1034                         break;
1035
1036                 case ICMD_IXORCONST:  /* ..., value  ==> ..., value ^ constant        */
1037                                       /* sx.val.i = constant                          */
1038
1039                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1040                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1041                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
1042                                 M_XOR_IMM(s1, iptr->sx.val.i, d);
1043                         else {
1044                                 ICONST(REG_ITMP3, iptr->sx.val.i);
1045                                 M_XOR(s1, REG_ITMP3, d);
1046                         }
1047                         emit_store_dst(jd, iptr, d);
1048                         break;
1049
1050                 case ICMD_LXORCONST:  /* ..., value  ==> ..., value ^ constant        */
1051                                       /* sx.val.l = constant                          */
1052
1053                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1054                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1055                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
1056                                 M_XOR_IMM(s1, iptr->sx.val.l, d);
1057                         else {
1058                                 LCONST(REG_ITMP3, iptr->sx.val.l);
1059                                 M_XOR(s1, REG_ITMP3, d);
1060                         }
1061                         emit_store_dst(jd, iptr, d);
1062                         break;
1063
1064                 case ICMD_LCMP:       /* ..., val1, val2  ==> ..., val1 cmp val2      */
1065
1066                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1067                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1068                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
1069                         /* XXX implement me!!! */
1070                         vm_abort("codegen: implement ICMD_LCMP!");
1071                         emit_store_dst(jd, iptr, d);
1072                         break;
1073                         break;
1074
1075
1076                 /* floating operations ************************************************/
1077
1078                 case ICMD_FNEG:       /* ..., value  ==> ..., - value                 */
1079
1080                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1081                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1082                         M_FMOVN(s1, d);
1083                         emit_store_dst(jd, iptr, d);
1084                         break;
1085
1086                 case ICMD_DNEG:       /* ..., value  ==> ..., - value                 */
1087
1088                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1089                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1090                         M_FMOVN(s1, d);
1091                         emit_store_dst(jd, iptr, d);
1092                         break;
1093
1094                 case ICMD_FADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
1095
1096                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1097                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1098                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1099                         M_FADD(s1, s2, d);
1100                         emit_store_dst(jd, iptr, d);
1101                         break;
1102
1103                 case ICMD_DADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
1104
1105                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1106                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1107                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1108                         M_DADD(s1, s2, d);
1109                         emit_store_dst(jd, iptr, d);
1110                         break;
1111
1112                 case ICMD_FSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
1113
1114                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1115                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1116                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1117                         M_FSUB(s1, s2, d);
1118                         emit_store_dst(jd, iptr, d);
1119                         break;
1120
1121                 case ICMD_DSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
1122
1123                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1124                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1125                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1126                         M_DSUB(s1, s2, d);
1127                         emit_store_dst(jd, iptr, d);
1128                         break;
1129
1130                 case ICMD_FMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1131
1132                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1133                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1134                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1135                         M_FMUL(s1, s2, d);
1136                         emit_store_dst(jd, iptr, d);
1137                         break;
1138
1139                 case ICMD_DMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1140
1141                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1142                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1143                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1144                         M_DMUL(s1, s2, d);
1145                         emit_store_dst(jd, iptr, d);
1146                         break;
1147
1148                 case ICMD_FDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1149
1150                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1151                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1152                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1153                         M_FDIV(s1, s2, d);
1154                         emit_store_dst(jd, iptr, d);
1155                         break;
1156
1157                 case ICMD_DDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1158
1159                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1160                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1161                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1162                         M_DDIV(s1, s2, d);
1163                         emit_store_dst(jd, iptr, d);
1164                         break;
1165
1166                 case ICMD_F2I:       /* ..., value  ==> ..., (int) value              */
1167                 case ICMD_D2I:
1168
1169                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1170                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1171                         M_CLR(d);
1172                         disp = dseg_add_float(cd, 0.0);
1173                         M_FLD(REG_FTMP2, REG_PV, disp);
1174                         M_FCMPU(s1, REG_FTMP2);
1175                         M_BNAN(4);
1176                         disp = dseg_add_unique_s4(cd, 0);
1177                         M_CVTDL_C(s1, REG_FTMP1);
1178                         M_LDA(REG_ITMP1, REG_PV, disp);
1179                         M_STFIWX(REG_FTMP1, 0, REG_ITMP1);
1180                         M_ILD(d, REG_PV, disp);
1181                         emit_store_dst(jd, iptr, d);
1182                         break;
1183
1184                 case ICMD_F2D:       /* ..., value  ==> ..., (double) value           */
1185
1186                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1187                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1188                         M_FLTMOVE(s1, d);
1189                         emit_store_dst(jd, iptr, d);
1190                         break;
1191
1192                 case ICMD_D2F:       /* ..., value  ==> ..., (double) value           */
1193
1194                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1195                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1196                         M_CVTDF(s1, d);
1197                         emit_store_dst(jd, iptr, d);
1198                         break;
1199
1200                 case ICMD_FCMPL:      /* ..., val1, val2  ==> ..., val1 fcmpg val2    */
1201                 case ICMD_DCMPL:      /* == => 0, < => 1, > => -1                     */
1202
1203
1204                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1205                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1206                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1207                         M_FCMPU(s2, s1);
1208                         M_IADD_IMM(REG_ZERO, -1, d);
1209                         M_BNAN(4);
1210                         M_BGT(3);
1211                         M_IADD_IMM(REG_ZERO, 0, d);
1212                         M_BGE(1);
1213                         M_IADD_IMM(REG_ZERO, 1, d);
1214                         emit_store_dst(jd, iptr, d);
1215                         break;
1216
1217                 case ICMD_FCMPG:      /* ..., val1, val2  ==> ..., val1 fcmpl val2    */
1218                 case ICMD_DCMPG:      /* == => 0, < => 1, > => -1                     */
1219
1220                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1221                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1222                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1223                         M_FCMPU(s1, s2);
1224                         M_IADD_IMM(REG_ZERO, 1, d);
1225                         M_BNAN(4);
1226                         M_BGT(3);
1227                         M_IADD_IMM(REG_ZERO, 0, d);
1228                         M_BGE(1);
1229                         M_IADD_IMM(REG_ZERO, -1, d);
1230                         emit_store_dst(jd, iptr, d);
1231                         break;
1232
1233                 case ICMD_IF_FCMPEQ:    /* ..., value, value ==> ...                  */
1234                 case ICMD_IF_DCMPEQ:
1235
1236                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1237                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1238                         M_FCMPU(s1, s2);
1239                         M_BNAN(1);
1240                         emit_beq(cd, iptr->dst.block);
1241                         break;
1242
1243                 case ICMD_IF_FCMPNE:    /* ..., value, value ==> ...                  */
1244                 case ICMD_IF_DCMPNE:
1245
1246                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1247                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1248                         M_FCMPU(s1, s2);
1249                         emit_bnan(cd, iptr->dst.block);
1250                         emit_bne(cd, iptr->dst.block);
1251                         break;
1252
1253
1254                 case ICMD_IF_FCMPL_LT:  /* ..., value, value ==> ...                  */
1255                 case ICMD_IF_DCMPL_LT:
1256
1257                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1258                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1259                         M_FCMPU(s1, s2);
1260                         emit_bnan(cd, iptr->dst.block);
1261                         emit_blt(cd, iptr->dst.block);
1262                         break;
1263
1264                 case ICMD_IF_FCMPL_GT:  /* ..., value, value ==> ...                  */
1265                 case ICMD_IF_DCMPL_GT:
1266
1267                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1268                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1269                         M_FCMPU(s1, s2);
1270                         M_BNAN(1);
1271                         emit_bgt(cd, iptr->dst.block);
1272                         break;
1273
1274                 case ICMD_IF_FCMPL_LE:  /* ..., value, value ==> ...                  */
1275                 case ICMD_IF_DCMPL_LE:
1276
1277                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1278                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1279                         M_FCMPU(s1, s2);
1280                         emit_bnan(cd, iptr->dst.block);
1281                         emit_ble(cd, iptr->dst.block);
1282                         break;
1283
1284                 case ICMD_IF_FCMPL_GE:  /* ..., value, value ==> ...                  */
1285                 case ICMD_IF_DCMPL_GE:
1286
1287                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1288                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1289                         M_FCMPU(s1, s2);
1290                         M_BNAN(1);
1291                         emit_bge(cd, iptr->dst.block);
1292                         break;
1293
1294                 case ICMD_IF_FCMPG_LT:  /* ..., value, value ==> ...                  */
1295                 case ICMD_IF_DCMPG_LT:
1296
1297                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1298                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1299                         M_FCMPU(s1, s2);
1300                         M_BNAN(1);
1301                         emit_blt(cd, iptr->dst.block);
1302                         break;
1303
1304                 case ICMD_IF_FCMPG_GT:  /* ..., value, value ==> ...                  */
1305                 case ICMD_IF_DCMPG_GT:
1306
1307                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1308                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1309                         M_FCMPU(s1, s2);
1310                         emit_bnan(cd, iptr->dst.block);
1311                         emit_bgt(cd, iptr->dst.block);
1312                         break;
1313
1314                 case ICMD_IF_FCMPG_LE:  /* ..., value, value ==> ...                  */
1315                 case ICMD_IF_DCMPG_LE:
1316
1317                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1318                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1319                         M_FCMPU(s1, s2);
1320                         M_BNAN(1);
1321                         emit_ble(cd, iptr->dst.block);
1322                         break;
1323
1324                 case ICMD_IF_FCMPG_GE:  /* ..., value, value ==> ...                  */
1325                 case ICMD_IF_DCMPG_GE:
1326
1327                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1328                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1329                         M_FCMPU(s1, s2);
1330                         emit_bnan(cd, iptr->dst.block);
1331                         emit_bge(cd, iptr->dst.block);
1332                         break;
1333
1334
1335                 /* memory operations **************************************************/
1336
1337                 case ICMD_ARRAYLENGTH: /* ..., arrayref  ==> ..., length              */
1338
1339                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1340                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1341                         emit_nullpointer_check(cd, iptr, s1);
1342                         M_ILD(d, s1, OFFSET(java_arrayheader, size));
1343                         emit_store_dst(jd, iptr, d);
1344                         break;
1345
1346                 case ICMD_BALOAD:     /* ..., arrayref, index  ==> ..., value         */
1347
1348                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1349                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1350                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1351                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1352                         M_IADD_IMM(s2, OFFSET(java_bytearray, data[0]), REG_ITMP2);
1353                         /* implicit null-pointer check */
1354                         M_LBZX(d, s1, REG_ITMP2);
1355                         M_BSEXT(d, d);
1356                         emit_store_dst(jd, iptr, d);
1357                         break;
1358
1359                 case ICMD_CALOAD:     /* ..., arrayref, index  ==> ..., value         */
1360
1361                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1362                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1363                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1364                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1365                         M_SLL_IMM(s2, 1, REG_ITMP2);
1366                         M_IADD_IMM(REG_ITMP2, OFFSET(java_chararray, data[0]), REG_ITMP2);
1367                         /* implicit null-pointer check */
1368                         M_LHZX(d, s1, REG_ITMP2);
1369                         emit_store_dst(jd, iptr, d);
1370                         break;
1371
1372                 case ICMD_SALOAD:     /* ..., arrayref, index  ==> ..., value         */
1373
1374                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1375                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1376                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1377                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1378                         M_SLL_IMM(s2, 1, REG_ITMP2);
1379                         M_IADD_IMM(REG_ITMP2, OFFSET(java_shortarray, data[0]), REG_ITMP2);
1380                         /* implicit null-pointer check */
1381                         M_LHAX(d, s1, REG_ITMP2);
1382                         emit_store_dst(jd, iptr, d);
1383                         break;
1384
1385                 case ICMD_IALOAD:     /* ..., arrayref, index  ==> ..., value         */
1386
1387                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1388                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1389                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1390                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1391                         M_SLL_IMM(s2, 2, REG_ITMP2);
1392                         M_IADD_IMM(REG_ITMP2, OFFSET(java_intarray, data[0]), REG_ITMP2);
1393                         /* implicit null-pointer check */
1394                         M_LWAX(d, s1, REG_ITMP2);
1395                         emit_store_dst(jd, iptr, d);
1396                         break;
1397
1398                 case ICMD_LALOAD:     /* ..., arrayref, index  ==> ..., value         */
1399
1400                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1401                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1402                         d = codegen_reg_of_dst(jd, iptr, PACK_REGS(REG_ITMP2, REG_ITMP1));
1403                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1404                         M_SLL_IMM(s2, 3, REG_ITMP2);
1405                         M_IADD(s1, REG_ITMP2, REG_ITMP2);
1406                         /* implicit null-pointer check */
1407                         M_LLD_INTERN(d, REG_ITMP2, OFFSET(java_longarray, data[0]));
1408                         emit_store_dst(jd, iptr, d);
1409                         break;
1410
1411                 case ICMD_FALOAD:     /* ..., arrayref, index  ==> ..., value         */
1412
1413                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1414                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1415                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1416                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1417                         M_SLL_IMM(s2, 2, REG_ITMP2);
1418                         M_IADD_IMM(REG_ITMP2, OFFSET(java_floatarray, data[0]), REG_ITMP2);
1419                         /* implicit null-pointer check */
1420                         M_LFSX(d, s1, REG_ITMP2);
1421                         emit_store_dst(jd, iptr, d);
1422                         break;
1423
1424                 case ICMD_DALOAD:     /* ..., arrayref, index  ==> ..., value         */
1425
1426                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1427                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1428                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1429                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1430                         M_SLL_IMM(s2, 3, REG_ITMP2);
1431                         M_IADD_IMM(REG_ITMP2, OFFSET(java_doublearray, data[0]), REG_ITMP2);
1432                         /* implicit null-pointer check */
1433                         M_LFDX(d, s1, REG_ITMP2);
1434                         emit_store_dst(jd, iptr, d);
1435                         break;
1436
1437                 case ICMD_AALOAD:     /* ..., arrayref, index  ==> ..., value         */
1438
1439                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1440                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1441                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1442                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1443                         M_SLL_IMM(s2, 3, REG_ITMP2);
1444                         M_IADD_IMM(REG_ITMP2, OFFSET(java_objectarray, data[0]), REG_ITMP2);
1445                         /* implicit null-pointer check */
1446                         M_ALDX(d, s1, REG_ITMP2);
1447                         emit_store_dst(jd, iptr, d);
1448                         break;
1449
1450
1451                 case ICMD_BASTORE:    /* ..., arrayref, index, value  ==> ...         */
1452
1453                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1454                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1455                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1456                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1457                         M_IADD_IMM(s2, OFFSET(java_bytearray, data[0]), REG_ITMP2);
1458                         /* implicit null-pointer check */
1459                         M_STBX(s3, s1, REG_ITMP2);
1460                         break;
1461
1462                 case ICMD_CASTORE:    /* ..., arrayref, index, value  ==> ...         */
1463
1464                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1465                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1466                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1467                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1468                         M_SLL_IMM(s2, 1, REG_ITMP2);
1469                         M_IADD_IMM(REG_ITMP2, OFFSET(java_chararray, data[0]), REG_ITMP2);
1470                         /* implicit null-pointer check */
1471                         M_STHX(s3, s1, REG_ITMP2);
1472                         break;
1473
1474                 case ICMD_SASTORE:    /* ..., arrayref, index, value  ==> ...         */
1475
1476                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1477                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1478                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1479                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1480                         M_SLL_IMM(s2, 1, REG_ITMP2);
1481                         M_IADD_IMM(REG_ITMP2, OFFSET(java_shortarray, data[0]), REG_ITMP2);
1482                         M_STHX(s3, s1, REG_ITMP2);
1483                         break;
1484
1485                 case ICMD_IASTORE:    /* ..., arrayref, index, value  ==> ...         */
1486
1487                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1488                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1489                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1490                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1491                         M_SLL_IMM(s2, 2, REG_ITMP2);
1492                         M_IADD_IMM(REG_ITMP2, OFFSET(java_intarray, data[0]), REG_ITMP2);
1493                         /* implicit null-pointer check */
1494                         M_STWX(s3, s1, REG_ITMP2);
1495                         break;
1496
1497                 case ICMD_LASTORE:    /* ..., arrayref, index, value  ==> ...         */
1498
1499                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1500                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1501                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1502                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1503                         M_SLL_IMM(s2, 3, REG_ITMP2);
1504                         M_IADD_IMM(REG_ITMP2, OFFSET(java_longarray, data[0]), REG_ITMP2);
1505                         /* implicit null-pointer check */
1506                         M_LSTX(s3, s1, REG_ITMP2);
1507                         break;
1508
1509                 case ICMD_FASTORE:    /* ..., arrayref, index, value  ==> ...         */
1510
1511                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1512                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1513                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1514                         s3 = emit_load_s3(jd, iptr, REG_FTMP3);
1515                         M_SLL_IMM(s2, 2, REG_ITMP2);
1516                         M_IADD_IMM(REG_ITMP2, OFFSET(java_floatarray, data[0]), REG_ITMP2);
1517                         /* implicit null-pointer check */
1518                         M_STFSX(s3, s1, REG_ITMP2);
1519                         break;
1520
1521                 case ICMD_DASTORE:    /* ..., arrayref, index, value  ==> ...         */
1522
1523                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1524                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1525                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1526                         s3 = emit_load_s3(jd, iptr, REG_FTMP3);
1527                         M_SLL_IMM(s2, 3, REG_ITMP2);
1528                         M_IADD_IMM(REG_ITMP2, OFFSET(java_doublearray, data[0]), REG_ITMP2);
1529                         /* implicit null-pointer check */
1530                         M_STFDX(s3, s1, REG_ITMP2);
1531                         break;
1532
1533                 case ICMD_AASTORE:    /* ..., arrayref, index, value  ==> ...         */
1534
1535                         s1 = emit_load_s1(jd, iptr, REG_A0);
1536                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1537                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1538                         s3 = emit_load_s3(jd, iptr, REG_A1);
1539
1540                         disp = dseg_add_functionptr(cd, BUILTIN_canstore);
1541                         M_ALD(REG_ITMP3, REG_PV, disp);
1542                         M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
1543                         M_MTCTR(REG_ITMP3);
1544
1545                         M_INTMOVE(s1, REG_A0);
1546                         M_INTMOVE(s3, REG_A1);
1547
1548                         M_JSR;
1549                         emit_exception_check(cd, iptr);
1550
1551                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1552                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1553                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1554                         M_SLL_IMM(s2, 3, REG_ITMP2);
1555                         M_IADD_IMM(REG_ITMP2, OFFSET(java_objectarray, data[0]), REG_ITMP2);
1556                         /* implicit null-pointer check */
1557                         M_ASTX(s3, s1, REG_ITMP2);
1558                         break;
1559
1560
1561                 case ICMD_GETSTATIC:  /* ...  ==> ..., value                          */
1562
1563                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1564                                 uf = iptr->sx.s23.s3.uf;
1565
1566                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1567                                 disp = dseg_add_unique_address(cd, NULL);
1568
1569                                 codegen_addpatchref(cd, PATCHER_get_putstatic,
1570                                                                         iptr->sx.s23.s3.uf, disp);
1571
1572                         } else {
1573                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1574
1575                                 fieldtype = fi->type;
1576                                 disp = dseg_add_address(cd, &(fi->value));
1577
1578                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1579                                         codegen_addpatchref(cd, PATCHER_clinit, fi->class, disp);
1580                                 }
1581                         }
1582
1583                         M_ALD(REG_ITMP1, REG_PV, disp);
1584                         switch (fieldtype) {
1585                         case TYPE_INT:
1586                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1587                                 M_ILD_INTERN(d, REG_ITMP1, 0);
1588                                 break;
1589                         case TYPE_LNG:
1590                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1591                                 M_LLD(d, REG_ITMP1, 0);
1592                                 break;
1593                         case TYPE_ADR:
1594                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1595                                 M_ALD_INTERN(d, REG_ITMP1, 0);
1596                                 break;
1597                         case TYPE_FLT:
1598                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1599                                 M_FLD_INTERN(d, REG_ITMP1, 0);
1600                                 break;
1601                         case TYPE_DBL:
1602                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1603                                 M_DLD_INTERN(d, REG_ITMP1, 0);
1604                                 break;
1605                         }
1606                         emit_store_dst(jd, iptr, d);
1607                         break;
1608
1609                 case ICMD_PUTSTATIC:  /* ..., value  ==> ...                          */
1610
1611
1612                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1613                                 uf = iptr->sx.s23.s3.uf;
1614
1615                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1616                                 disp = dseg_add_unique_address(cd, NULL);
1617
1618                                 codegen_addpatchref(cd, PATCHER_get_putstatic,
1619                                                                         iptr->sx.s23.s3.uf, disp);
1620                         } else {
1621                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1622
1623                                 fieldtype = fi->type;
1624                                 disp = dseg_add_address(cd, &(fi->value));
1625
1626                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1627                                         codegen_addpatchref(cd, PATCHER_clinit, fi->class, disp);
1628                                 }
1629                         }
1630
1631                         M_ALD(REG_ITMP1, REG_PV, disp);
1632                         switch (fieldtype) {
1633                         case TYPE_INT:
1634                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1635                                 M_IST_INTERN(s1, REG_ITMP1, 0);
1636                                 break;
1637                         case TYPE_LNG:
1638                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1639                                 M_LST_INTERN(s1, REG_ITMP1, 0);
1640                                 break;
1641                         case TYPE_ADR:
1642                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1643                                 M_AST_INTERN(s1, REG_ITMP1, 0);
1644                                 break;
1645                         case TYPE_FLT:
1646                                 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1647                                 M_FST_INTERN(s1, REG_ITMP1, 0);
1648                                 break;
1649                         case TYPE_DBL:
1650                                 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1651                                 M_DST_INTERN(s1, REG_ITMP1, 0);
1652                                 break;
1653                         }
1654                         break;
1655
1656
1657                 case ICMD_GETFIELD:   /* ...  ==> ..., value                          */
1658
1659                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1660
1661                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1662                                 uf = iptr->sx.s23.s3.uf;
1663                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1664                                 disp = 0;
1665
1666                                 codegen_addpatchref(cd, PATCHER_get_putfield, uf, 0);
1667                         } else {
1668                                 fi = iptr->sx.s23.s3.fmiref->p.field;
1669                                 fieldtype = fi->type;
1670                                 disp = fi->offset;
1671                         }
1672
1673                         /* implicit null-pointer check */
1674                         switch (fieldtype) {
1675                         case TYPE_INT:
1676                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1677                                 M_ILD(d, s1, disp);
1678                                 break;
1679                         case TYPE_LNG:
1680                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1681                                 M_LLD(d, s1, disp);
1682                                 break;
1683                         case TYPE_ADR:
1684                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1685                                 M_ALD(d, s1, disp);
1686                                 break;
1687                         case TYPE_FLT:
1688                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1689                                 M_FLD(d, s1, disp);
1690                                 break;
1691                         case TYPE_DBL:
1692                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1693                                 M_DLD(d, s1, disp);
1694                                 break;
1695                         }
1696                         emit_store_dst(jd, iptr, d);
1697                         break;
1698
1699                 case ICMD_PUTFIELD:   /* ..., value  ==> ...                          */
1700
1701                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1702
1703                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1704                                 uf        = iptr->sx.s23.s3.uf;
1705                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1706                                 disp      = 0;
1707                         }
1708                         else {
1709                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1710                                 fieldtype = fi->type;
1711                                 disp      = fi->offset;
1712                         }
1713
1714                         if (IS_INT_LNG_TYPE(fieldtype)) {
1715                                 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1716                         }
1717                         else
1718                                 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1719
1720                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1721                                 codegen_addpatchref(cd, PATCHER_get_putfield, uf, 0);
1722                         }
1723
1724
1725                         /* implicit null-pointer check */
1726                         switch (fieldtype) {
1727                         case TYPE_INT:
1728                                 M_IST(s2, s1, disp);
1729                                 break;
1730                         case TYPE_LNG:
1731                                 M_LST(s2, s1, disp);
1732                                 break;
1733                         case TYPE_ADR:
1734                                 M_AST(s2, s1, disp);
1735                                 break;
1736                         case TYPE_FLT:
1737                                 M_FST(s2, s1, disp);
1738                                 break;
1739                         case TYPE_DBL:
1740                                 M_DST(s2, s1, disp);
1741                                 break;
1742                         }
1743                         break;
1744
1745
1746                 /* branch operations **************************************************/
1747
1748                 case ICMD_ATHROW:       /* ..., objectref ==> ... (, objectref)       */
1749
1750                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1751                         M_LNGMOVE(s1, REG_ITMP1_XPTR);
1752
1753 #ifdef ENABLE_VERIFIER
1754                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1755                                 codegen_addpatchref(cd, PATCHER_athrow_areturn,
1756                                                                         iptr->sx.s23.s2.uc, 0);
1757                         }
1758 #endif /* ENABLE_VERIFIER */
1759
1760                         disp = dseg_add_functionptr(cd, asm_handle_exception);
1761                         M_ALD(REG_ITMP2, REG_PV, disp);
1762                         M_MTCTR(REG_ITMP2);
1763
1764                         if (jd->isleafmethod) M_MFLR(REG_ITMP3);         /* save LR        */
1765                         M_BL(0);                                        /* get current PC */
1766                         M_MFLR(REG_ITMP2_XPC);
1767                         if (jd->isleafmethod) M_MTLR(REG_ITMP3);         /* restore LR     */
1768                         M_RTS;                                          /* jump to CTR    */
1769
1770                         ALIGNCODENOP;
1771                         break;
1772
1773                 case ICMD_GOTO:         /* ... ==> ...                                */
1774                 case ICMD_RET:          /* ... ==> ...                                */
1775
1776                         emit_br(cd, iptr->dst.block);
1777                         ALIGNCODENOP;
1778                         break;
1779
1780                 case ICMD_JSR:          /* ... ==> ...                                */
1781
1782                         emit_br(cd, iptr->sx.s23.s3.jsrtarget.block);
1783                         ALIGNCODENOP;
1784                         break;
1785
1786                 case ICMD_IFNULL:       /* ..., value ==> ...                         */
1787
1788                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1789                         M_TST(s1);
1790                         emit_beq(cd, iptr->dst.block);
1791                         break;
1792
1793                 case ICMD_IFNONNULL:    /* ..., value ==> ...                         */
1794
1795                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1796                         M_TST(s1);
1797                         emit_bne(cd, iptr->dst.block);
1798                         break;
1799
1800                 case ICMD_IFLT:
1801                 case ICMD_IFLE:
1802                 case ICMD_IFNE:
1803                 case ICMD_IFGT:
1804                 case ICMD_IFGE:
1805                 case ICMD_IFEQ:         /* ..., value ==> ...                         */
1806
1807                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1808                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767))
1809                                 M_CMPI(s1, iptr->sx.val.i);
1810                         else {
1811                                 ICONST(REG_ITMP2, iptr->sx.val.i);
1812                                 M_CMP(s1, REG_ITMP2);
1813                         }
1814                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFEQ, BRANCH_OPT_NONE);
1815                         break;
1816
1817                 case ICMD_IF_LEQ:       /* ..., value ==> ...                         */
1818                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1819                         LCONST(REG_ITMP2, iptr->sx.val.l);
1820                         M_CMP(s1, REG_ITMP2);
1821                         emit_beq(cd, iptr->dst.block);
1822                         break;
1823                 case ICMD_IF_LLT:       /* ..., value ==> ...                         */
1824                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1825                         LCONST(REG_ITMP2, iptr->sx.val.l);
1826                         M_CMP(s1, REG_ITMP2);
1827                         emit_blt(cd, iptr->dst.block);
1828                         break;
1829                 case ICMD_IF_LLE:       /* ..., value ==> ...                         */
1830                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1831                         LCONST(REG_ITMP2, iptr->sx.val.l);
1832                         M_CMP(s1, REG_ITMP2);
1833                         emit_ble(cd, iptr->dst.block);
1834                         break;
1835
1836                 case ICMD_IF_LNE:       /* ..., value ==> ... */
1837                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1838                         LCONST(REG_ITMP2, iptr->sx.val.l);
1839                         M_CMP(s1, REG_ITMP2);
1840                         emit_bne(cd, iptr->dst.block);
1841                         break;
1842                 case ICMD_IF_LGE:       /* ..., value ==> ... */
1843                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1844                         LCONST(REG_ITMP2, iptr->sx.val.l);
1845                         M_CMP(s1, REG_ITMP2);
1846                         emit_bge(cd, iptr->dst.block);
1847                         break;
1848                 case ICMD_IF_LGT:       /* ..., value ==> ...                         */
1849                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1850                         LCONST(REG_ITMP2, iptr->sx.val.l);
1851                         M_CMP(s1, REG_ITMP2);
1852                         emit_bgt(cd, iptr->dst.block);
1853                         break;
1854                 case ICMD_IF_ICMPEQ:    /* ..., value, value ==> ...                  */
1855                 case ICMD_IF_ACMPEQ:    /* op1 = target JavaVM pc                     */
1856                 case ICMD_IF_LCMPEQ:
1857
1858                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1859                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1860                         M_CMP(s1, s2);
1861                         emit_beq(cd, iptr->dst.block);
1862                         break;
1863
1864                 case ICMD_IF_ICMPNE:    /* ..., value, value ==> ...                  */
1865                 case ICMD_IF_ACMPNE:    /* op1 = target JavaVM pc                     */
1866                 case ICMD_IF_LCMPNE:
1867
1868                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1869                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1870                         M_CMP(s1, s2);
1871                         emit_bne(cd, iptr->dst.block);
1872                         break;
1873
1874
1875                 case ICMD_IF_ICMPLT:    /* ..., value, value ==> ...                  */
1876                 case ICMD_IF_LCMPLT:
1877
1878                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1879                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1880                         M_CMP(s1, s2);
1881                         emit_blt(cd, iptr->dst.block);
1882                         break;
1883
1884                 case ICMD_IF_ICMPGT:    /* ..., value, value ==> ...                  */
1885                 case ICMD_IF_LCMPGT:
1886
1887                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1888                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1889                         M_CMP(s1, s2);
1890                         emit_bgt(cd, iptr->dst.block);
1891                         break;
1892
1893                 case ICMD_IF_ICMPLE:    /* ..., value, value ==> ...                  */
1894                 case ICMD_IF_LCMPLE:
1895
1896                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1897                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1898                         M_CMP(s1, s2);
1899                         emit_ble(cd, iptr->dst.block);
1900                         break;
1901
1902                 case ICMD_IF_ICMPGE:    /* ..., value, value ==> ...                  */
1903                 case ICMD_IF_LCMPGE:
1904
1905                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1906                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1907                         M_CMP(s1, s2);
1908                         emit_bge(cd, iptr->dst.block);
1909                         break;
1910
1911
1912                 case ICMD_LRETURN:      /* ..., retvalue ==> ...                      */
1913                 case ICMD_IRETURN:      /* ..., retvalue ==> ...                      */
1914
1915                         REPLACEMENT_POINT_RETURN(cd, iptr);
1916                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
1917                         M_LNGMOVE(s1, REG_RESULT);
1918                         goto nowperformreturn;
1919
1920                 case ICMD_ARETURN:      /* ..., retvalue ==> ...                      */
1921
1922                         REPLACEMENT_POINT_RETURN(cd, iptr);
1923                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
1924                         M_LNGMOVE(s1, REG_RESULT);
1925
1926 #ifdef ENABLE_VERIFIER
1927                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1928                                 codegen_addpatchref(cd, PATCHER_athrow_areturn,
1929                                                                         iptr->sx.s23.s2.uc, 0);
1930                         }
1931 #endif /* ENABLE_VERIFIER */
1932
1933                         goto nowperformreturn;
1934
1935                 case ICMD_FRETURN:      /* ..., retvalue ==> ...                      */
1936                 case ICMD_DRETURN:
1937
1938                         REPLACEMENT_POINT_RETURN(cd, iptr);
1939                         s1 = emit_load_s1(jd, iptr, REG_FRESULT);
1940                         M_FLTMOVE(s1, REG_FRESULT);
1941                         goto nowperformreturn;
1942
1943                 case ICMD_RETURN:      /* ...  ==> ...                                */
1944
1945                         REPLACEMENT_POINT_RETURN(cd, iptr);
1946
1947 nowperformreturn:
1948                         {
1949                         s4 i, p;
1950
1951                         p = cd->stackframesize;
1952
1953                         /* call trace function */
1954
1955 #if !defined(NDEBUG)
1956                         if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
1957                                 emit_verbosecall_exit(jd);
1958                         }
1959 #endif
1960
1961 #if defined(ENABLE_THREADS)
1962                         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
1963                                 disp = dseg_add_functionptr(cd, LOCK_monitor_exit);
1964                                 M_ALD(REG_ITMP3, REG_PV, disp);
1965                                 M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
1966                                 M_MTCTR(REG_ITMP3);
1967
1968                                 /* we need to save the proper return value */
1969
1970                                 switch (iptr->opc) {
1971                                 case ICMD_LRETURN:
1972                                 case ICMD_IRETURN:
1973                                 case ICMD_ARETURN:
1974                                         /* fall through */
1975                                         M_LST(REG_RESULT , REG_SP, rd->memuse * 8 + 8);
1976                                         break;
1977                                 case ICMD_FRETURN:
1978                                         M_FST(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
1979                                         break;
1980                                 case ICMD_DRETURN:
1981                                         M_DST(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
1982                                         break;
1983                                 }
1984
1985                                 M_ALD(REG_A0, REG_SP, rd->memuse * 8);
1986                                 M_JSR;
1987
1988                                 /* and now restore the proper return value */
1989
1990                                 switch (iptr->opc) {
1991                                 case ICMD_LRETURN:
1992                                 case ICMD_IRETURN:
1993                                 case ICMD_ARETURN:
1994                                         /* fall through */
1995                                         M_LLD(REG_RESULT , REG_SP, rd->memuse * 8 + 8);
1996                                         break;
1997                                 case ICMD_FRETURN:
1998                                         M_FLD(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
1999                                         break;
2000                                 case ICMD_DRETURN:
2001                                         M_DLD(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
2002                                         break;
2003                                 }
2004                         }
2005 #endif
2006
2007                         /* restore return address                                         */
2008
2009                         if (!jd->isleafmethod) {
2010                                 /* ATTENTION: Don't use REG_ZERO (r0) here, as M_ALD
2011                                    may have a displacement overflow. */
2012
2013                                 M_ALD(REG_ITMP1, REG_SP, p * 8 + LA_LR_OFFSET);
2014                                 M_MTLR(REG_ITMP1);
2015                         }
2016
2017                         /* restore saved registers                                        */
2018
2019                         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
2020                                 p--; M_LLD(rd->savintregs[i], REG_SP, p * 8);
2021                         }
2022                         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
2023                                 p--; M_DLD(rd->savfltregs[i], REG_SP, p * 8);
2024                         }
2025
2026                         /* deallocate stack                                               */
2027
2028                         if (cd->stackframesize)
2029                                 M_LDA(REG_SP, REG_SP, cd->stackframesize * 8);
2030
2031                         M_RET;
2032                         ALIGNCODENOP;
2033                         }
2034                         break;
2035
2036
2037                 case ICMD_TABLESWITCH:  /* ..., index ==> ...                         */
2038                         {
2039                         s4 i, l;
2040                         branch_target_t *table;
2041
2042                         table = iptr->dst.table;
2043
2044                         l = iptr->sx.s23.s2.tablelow;
2045                         i = iptr->sx.s23.s3.tablehigh;
2046
2047                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2048                         if (l == 0) {
2049                                 M_INTMOVE(s1, REG_ITMP1);
2050                         } else if (l <= 32768) {
2051                                 M_LDA(REG_ITMP1, s1, -l);
2052                         } else {
2053                                 ICONST(REG_ITMP2, l);
2054                                 M_SUB(s1, REG_ITMP2, REG_ITMP1);
2055                         }
2056
2057                         /* number of targets */
2058                         i = i - l + 1;
2059
2060                         /* range check */
2061
2062                         M_CMPUI(REG_ITMP1, i - 1);
2063                         emit_bgt(cd, table[0].block);
2064
2065                         /* build jump table top down and use address of lowest entry */
2066
2067                         table += i;
2068
2069                         while (--i >= 0) {
2070                                 dseg_add_target(cd, table->block);
2071                                 --table;
2072                         }
2073
2074                         /* length of dataseg after last dseg_add_unique_target is used by load */
2075
2076                         M_SLL_IMM(REG_ITMP1, 3, REG_ITMP1);
2077                         M_IADD(REG_ITMP1, REG_PV, REG_ITMP2);
2078                         M_ALD(REG_ITMP2, REG_ITMP2, -(cd->dseglen));
2079                         M_MTCTR(REG_ITMP2);
2080                         M_RTS;
2081                         ALIGNCODENOP;
2082                         }
2083                         break;
2084
2085
2086                 case ICMD_LOOKUPSWITCH: /* ..., key ==> ...                           */
2087                         {
2088                         s4 i, val;
2089                         lookup_target_t *lookup;
2090
2091                         lookup = iptr->dst.lookup;
2092
2093                         i = iptr->sx.s23.s2.lookupcount;
2094
2095                         MCODECHECK((i<<2)+8);
2096                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2097                         while (--i >= 0) {
2098                                 val = lookup->value;
2099                                 if ((val >= -32768) && (val <= 32767)) {
2100                                         M_CMPI(s1, val);
2101
2102                                 } else {
2103                                         a = dseg_add_s4(cd, val);
2104                                         M_ILD(REG_ITMP2, REG_PV, a);
2105                                         M_CMP(s1, REG_ITMP2);
2106                                 }
2107                                 emit_beq(cd, lookup->target.block);
2108                                 ++lookup;
2109                         }
2110
2111                         emit_br(cd, iptr->sx.s23.s3.lookupdefault.block);
2112
2113                         ALIGNCODENOP;
2114                         break;
2115                         }
2116
2117
2118                 case ICMD_BUILTIN:      /* ..., [arg1, [arg2 ...]] ==> ...            */
2119
2120                         bte = iptr->sx.s23.s3.bte;
2121                         md = bte->md;
2122                         goto gen_method;
2123
2124                 case ICMD_INVOKESTATIC: /* ..., [arg1, [arg2 ...]] ==> ...            */
2125                 case ICMD_INVOKESPECIAL:/* ..., objectref, [arg1, [arg2 ...]] ==> ... */
2126                 case ICMD_INVOKEVIRTUAL:/* op1 = arg count, val.a = method pointer    */
2127                 case ICMD_INVOKEINTERFACE:
2128
2129                         REPLACEMENT_POINT_INVOKE(cd, iptr);
2130
2131                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2132                                 lm = NULL;
2133                                 um = iptr->sx.s23.s3.um;
2134                                 md = um->methodref->parseddesc.md;
2135                         }
2136                         else {
2137                                 lm = iptr->sx.s23.s3.fmiref->p.method;
2138                                 um = NULL;
2139                                 md = lm->parseddesc;
2140                         }
2141
2142 gen_method:
2143                         s3 = md->paramcount;
2144
2145                         MCODECHECK((s3 << 1) + 64);
2146
2147                         /* copy arguments to registers or stack location */
2148
2149                         for (s3 = s3 - 1; s3 >= 0; s3--) {
2150                                 var = VAR(iptr->sx.s23.s2.args[s3]);
2151                                 d   = md->params[s3].regoff;
2152
2153                                 if (var->flags & PREALLOC)
2154                                         continue;
2155
2156                                 if (IS_INT_LNG_TYPE(var->type)) {
2157                                         if (!md->params[s3].inmemory) {
2158                                                 s1 = emit_load(jd, iptr, var, d);
2159                                                 M_LNGMOVE(s1, d);
2160                                         }
2161                                         else {
2162                                                 s1 = emit_load(jd, iptr, var, REG_ITMP1);
2163                                                 M_LST(s1, REG_SP, d * 8);
2164                                         }
2165                                 }
2166                                 else {
2167                                         if (!md->params[s3].inmemory) {
2168                                                 s1 = emit_load(jd, iptr, var, d);
2169                                                 M_FLTMOVE(s1, d);
2170                                         }
2171                                         else {
2172                                                 s1 = emit_load(jd, iptr, var, REG_FTMP1);
2173                                                 M_DST(s1, REG_SP, d * 8);
2174                                         }
2175                                 }
2176                         }
2177
2178                         switch (iptr->opc) {
2179                         case ICMD_BUILTIN:
2180                                 disp = dseg_add_functionptr(cd, bte->fp);
2181                                 M_ALD(REG_PV, REG_PV, disp);
2182                                 M_ALD(REG_PV, REG_PV, 0);       /* TOC */
2183
2184                                 /* generate the actual call */
2185                                 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2186                                 M_MTCTR(REG_PV);
2187                                 M_JSR;
2188                                 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2189                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2190                                 M_MFLR(REG_ITMP1);
2191                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2192
2193                                 emit_exception_check(cd, iptr);
2194                                 break;
2195
2196
2197                         case ICMD_INVOKESPECIAL:
2198                                 emit_nullpointer_check(cd, iptr, REG_A0);
2199                                 /* fall through */
2200
2201                         case ICMD_INVOKESTATIC:
2202                                 if (lm == NULL) {
2203                                         disp = dseg_add_unique_address(cd, um);
2204
2205                                         codegen_addpatchref(cd, PATCHER_invokestatic_special,
2206                                                                                 um, disp);
2207                                 } else {
2208                                         disp = dseg_add_address(cd, lm->stubroutine);
2209                                 }
2210                                 M_ALD(REG_PV, REG_PV, disp);
2211
2212                                 /* generate the actual call */
2213
2214                                 M_MTCTR(REG_PV);
2215                                 M_JSR;
2216                                 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2217                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2218                                 M_MFLR(REG_ITMP1);
2219                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2220
2221                                 break;
2222                         case ICMD_INVOKEVIRTUAL:
2223                                 if (lm == NULL) {
2224                                         codegen_addpatchref(cd, PATCHER_invokevirtual, um, 0);
2225                                         s1 = 0;
2226                                 } else {
2227                                         s1 = OFFSET(vftbl_t, table[0]) +
2228                                                 sizeof(methodptr) * lm->vftblindex;
2229                                 }
2230
2231                                 /* implicit null-pointer check */
2232                                 M_ALD(REG_METHODPTR, REG_A0, OFFSET(java_objectheader, vftbl));
2233                                 M_ALD(REG_PV, REG_METHODPTR, s1);
2234
2235                                 /* generate the actual call */
2236
2237                                 M_MTCTR(REG_PV);
2238                                 M_JSR;
2239                                 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2240                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2241                                 M_MFLR(REG_ITMP1);
2242                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2243                                 break;
2244
2245                         case ICMD_INVOKEINTERFACE:
2246                                 if (lm == NULL) {
2247                                         codegen_addpatchref(cd, PATCHER_invokeinterface, um, 0);
2248
2249                                         s1 = 0;
2250                                         s2 = 0;
2251
2252                                 } else {
2253                                         s1 = OFFSET(vftbl_t, interfacetable[0]) -
2254                                                 sizeof(methodptr*) * lm->class->index;
2255
2256                                         s2 = sizeof(methodptr) * (lm - lm->class->methods);
2257                                 }
2258
2259                                 /* implicit null-pointer check */
2260                                 M_ALD(REG_METHODPTR, REG_A0, OFFSET(java_objectheader, vftbl));
2261                                 M_ALD(REG_METHODPTR, REG_METHODPTR, s1);
2262                                 M_ALD(REG_PV, REG_METHODPTR, s2);
2263
2264                                 /* generate the actual call */
2265
2266                                 M_MTCTR(REG_PV);
2267                                 M_JSR;
2268                                 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2269                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2270                                 M_MFLR(REG_ITMP1);
2271                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2272
2273                                 break;
2274                         }
2275                         /* store return value */
2276
2277                         d = md->returntype.type;
2278
2279                         if (d != TYPE_VOID) {
2280                                 if (IS_INT_LNG_TYPE(d)) {
2281                                         s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2282                                         M_MOV(REG_RESULT, s1);
2283                                 }
2284                                 else {
2285                                         s1 = codegen_reg_of_dst(jd, iptr, REG_FRESULT);
2286                                         M_FLTMOVE(REG_FRESULT, s1);
2287                                 }
2288                                 emit_store_dst(jd, iptr, s1);
2289                         }
2290                         break;
2291
2292                 case ICMD_CHECKCAST:  /* ..., objectref ==> ..., objectref            */
2293                                       /* val.a: (classinfo*) superclass               */
2294
2295                         /*  superclass is an interface:
2296                          *
2297                          *  OK if ((sub == NULL) ||
2298                          *         (sub->vftbl->interfacetablelength > super->index) &&
2299                          *         (sub->vftbl->interfacetable[-super->index] != NULL));
2300                          *
2301                          *  superclass is a class:
2302                          *
2303                          *  OK if ((sub == NULL) || (0
2304                          *         <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2305                          *         super->vftbl->diffvall));
2306                          */
2307
2308                         if (!(iptr->flags.bits & INS_FLAG_ARRAY)) {
2309                                 /* object type cast-check */
2310
2311                                 classinfo *super;
2312                                 s4         superindex;
2313
2314                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2315                                         super = NULL;
2316                                         superindex = 0;
2317                                 } else {
2318                                         super = iptr->sx.s23.s3.c.cls;
2319                                         superindex = super->index;
2320                                 }
2321
2322                                 if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2323                                         CODEGEN_CRITICAL_SECTION_NEW;
2324                                 }
2325
2326                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2327
2328                                 /* if class is not resolved, check which code to call */
2329
2330                                 if (super == NULL) {
2331                                         M_TST(s1);
2332                                         emit_label_beq(cd, BRANCH_LABEL_1);
2333                                         disp = dseg_add_unique_s4(cd, 0);                     /* super->flags */
2334
2335                                         codegen_addpatchref(cd,
2336                                                                                 PATCHER_checkcast_instanceof_flags,
2337                                                                                 iptr->sx.s23.s3.c.ref,
2338                                                                                 disp);
2339
2340                                         M_ILD(REG_ITMP2, REG_PV, disp);
2341                                         M_AND_IMM(REG_ITMP2, ACC_INTERFACE, REG_ITMP2);
2342
2343                                         emit_label_beq(cd, BRANCH_LABEL_2);
2344                                 }
2345
2346                                 /* interface checkcast code */
2347
2348                                 if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2349                                         if (super == NULL) {
2350                                                 codegen_addpatchref(cd,
2351                                                                                         PATCHER_checkcast_interface,
2352                                                                                         iptr->sx.s23.s3.c.ref,
2353                                                                                         0);
2354                                         } else {
2355                                                 M_TST(s1);
2356                                                 emit_label_beq(cd, BRANCH_LABEL_3);
2357                                         }
2358
2359                                         M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2360                                         M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, interfacetablelength));
2361                                         M_LDATST(REG_ITMP3, REG_ITMP3, -superindex);
2362                                         emit_classcast_check(cd, iptr, BRANCH_LE, REG_ITMP3, s1);
2363                                         M_ALD(REG_ITMP3, REG_ITMP2,
2364                                                   OFFSET(vftbl_t, interfacetable[0]) -
2365                                                   superindex * sizeof(methodptr*));
2366                                         M_TST(REG_ITMP3);
2367                                         emit_classcast_check(cd, iptr, BRANCH_EQ, REG_ITMP3, s1);
2368
2369                                         if (super == NULL)      {
2370                                                 emit_label_br(cd, BRANCH_LABEL_4);
2371                                         } else  {
2372                                                 emit_label(cd, BRANCH_LABEL_3);
2373                                         }
2374                                 }
2375
2376                                 /* class checkcast code */
2377
2378                                 if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2379                                         if (super == NULL) {
2380                                                 emit_label(cd, BRANCH_LABEL_2);
2381
2382                                                 disp = dseg_add_unique_address(cd, NULL);
2383                                                 codegen_addpatchref(cd, PATCHER_checkcast_class,
2384                                                                                         iptr->sx.s23.s3.c.ref,
2385                                                                                         disp);
2386                                         } else {
2387                                                 disp = dseg_add_address(cd, super->vftbl);
2388                                                 M_TST(s1);
2389                                                 emit_label_beq(cd, BRANCH_LABEL_5);
2390                                         }
2391
2392                                         M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2393
2394                                         CODEGEN_CRITICAL_SECTION_START;
2395
2396                                         M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2397                                         M_ALD(REG_ITMP2, REG_PV, disp);
2398                                         if (s1 != REG_ITMP1) {
2399                                                 M_ILD(REG_ITMP1, REG_ITMP2, OFFSET(vftbl_t, baseval));
2400                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2401
2402                                                 CODEGEN_CRITICAL_SECTION_END;
2403
2404                                                 M_SUB(REG_ITMP3, REG_ITMP1, REG_ITMP3);
2405                                                 M_EXTSW(REG_ITMP3, REG_ITMP3);
2406                                         } else {
2407                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, baseval));
2408                                                 M_SUB(REG_ITMP3, REG_ITMP2, REG_ITMP3);
2409                                                 M_EXTSW(REG_ITMP3, REG_ITMP3);
2410                                                 M_ALD(REG_ITMP2, REG_PV, disp);
2411                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2412
2413                                                 CODEGEN_CRITICAL_SECTION_END;
2414
2415                                         }
2416                                         M_CMPU(REG_ITMP3, REG_ITMP2);
2417                                         emit_classcast_check(cd, iptr, BRANCH_GT, REG_ITMP3, s1);
2418
2419                                         if (super != NULL)
2420                                                 emit_label(cd, BRANCH_LABEL_5);
2421                                 }
2422
2423                                 if (super == NULL) {
2424                                         emit_label(cd, BRANCH_LABEL_1);
2425                                         emit_label(cd, BRANCH_LABEL_4);
2426                                 }
2427                                 d = codegen_reg_of_dst(jd, iptr, s1);
2428
2429                         } else {
2430                                 /* array type cast-check */
2431
2432                                 s1 = emit_load_s1(jd, iptr, REG_A0);
2433                                 M_INTMOVE(s1, REG_A0);
2434
2435
2436                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2437                                         disp = dseg_add_unique_address(cd, NULL);
2438                                         codegen_addpatchref(cd, PATCHER_builtin_arraycheckcast,
2439                                                                                 iptr->sx.s23.s3.c.ref,
2440                                                                                 disp);
2441                                 } else {
2442                                         disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2443                                 }
2444
2445                                 M_ALD(REG_A1, REG_PV, disp);
2446                                 disp = dseg_add_functionptr(cd, BUILTIN_arraycheckcast);
2447                                 M_ALD(REG_ITMP2, REG_PV, disp);
2448                                 M_ALD(REG_ITMP2, REG_ITMP2, 0); /* TOC */
2449                                 M_MTCTR(REG_ITMP2);
2450                                 M_JSR;
2451                                 M_TST(REG_RESULT);
2452                                 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_RESULT, s1);
2453
2454                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2455                                 d = codegen_reg_of_dst(jd, iptr, s1);
2456                         }
2457                         M_INTMOVE(s1, d);
2458                         emit_store_dst(jd, iptr, d);
2459                         break;
2460
2461
2462                 case ICMD_INSTANCEOF: /* ..., objectref ==> ..., intresult            */
2463                                       /* val.a: (classinfo*) superclass               */
2464
2465                         /*  superclass is an interface:
2466                          *
2467                          *  return (sub != NULL) &&
2468                          *         (sub->vftbl->interfacetablelength > super->index) &&
2469                          *         (sub->vftbl->interfacetable[-super->index] != NULL);
2470                          *
2471                          *  superclass is a class:
2472                          *
2473                          *  return ((sub != NULL) && (0
2474                          *          <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2475                          *          super->vftbl->diffvall));
2476                          */
2477
2478                         {
2479                         classinfo *super;
2480                         vftbl_t   *supervftbl;
2481                         s4         superindex;
2482
2483                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2484                                 super = NULL;
2485                                 superindex = 0;
2486                         }
2487                         else {
2488                                 super = iptr->sx.s23.s3.c.cls;
2489                                 superindex = super->index;
2490                         }
2491
2492                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2493                                 CODEGEN_CRITICAL_SECTION_NEW;
2494                         }
2495
2496                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2497                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
2498                         if (s1 == d) {
2499                                 M_MOV(s1, REG_ITMP1);
2500                                 s1 = REG_ITMP1;
2501                         }
2502
2503                         M_CLR(d);
2504
2505                         /* if class is not resolved, check which code to call */
2506
2507                         if (super == NULL) {
2508                                 M_TST(s1);
2509                                 emit_label_beq(cd, BRANCH_LABEL_1);
2510                                 disp = dseg_add_unique_s4(cd, 0);                     /* super->flags */
2511
2512                                 codegen_addpatchref(cd, PATCHER_checkcast_instanceof_flags,
2513                                                                         iptr->sx.s23.s3.c.ref, disp);
2514
2515                                 M_ILD(REG_ITMP3, REG_PV, disp);
2516                                 M_AND_IMM(REG_ITMP3, ACC_INTERFACE, REG_ITMP3);
2517                                 emit_label_beq(cd, BRANCH_LABEL_2);
2518                         }
2519
2520                         /* interface instanceof code */
2521
2522                         if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2523                                 if (super == NULL) {
2524                                         codegen_addpatchref(cd,
2525                                                                                 PATCHER_instanceof_interface,
2526                                                                                 iptr->sx.s23.s3.c.ref, 0);
2527
2528                                 } else {
2529                                         M_TST(s1);
2530                                         emit_label_beq(cd, BRANCH_LABEL_3);
2531                                 }
2532
2533                                 M_ALD(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
2534                                 M_ILD(REG_ITMP3, REG_ITMP1, OFFSET(vftbl_t, interfacetablelength));
2535                                 M_LDATST(REG_ITMP3, REG_ITMP3, -superindex);
2536                                 M_BLE(4);
2537                                 M_ALD(REG_ITMP1, REG_ITMP1,
2538                                           OFFSET(vftbl_t, interfacetable[0]) -
2539                                           superindex * sizeof(methodptr*));
2540                                 M_TST(REG_ITMP1);
2541                                 M_BEQ(1);
2542                                 M_IADD_IMM(REG_ZERO, 1, d);
2543
2544                                 if (super == NULL)      {
2545                                         emit_label_br(cd, BRANCH_LABEL_4);
2546                                 } else  {
2547                                         emit_label(cd, BRANCH_LABEL_3);
2548                                 }
2549                         }
2550
2551                         /* class instanceof code */
2552
2553                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2554
2555                                 if (super == NULL) {
2556                                         emit_label(cd, BRANCH_LABEL_2);
2557
2558                                         disp = dseg_add_unique_address(cd, NULL);
2559                                         codegen_addpatchref(cd, PATCHER_instanceof_class,
2560                                                                                 iptr->sx.s23.s3.c.ref,
2561                                                                                 disp);
2562
2563                                 } else {
2564                                         disp = dseg_add_address(cd, super->vftbl);
2565                                         M_TST(s1);
2566                                         emit_label_beq(cd, BRANCH_LABEL_5);
2567                                 }
2568
2569                                 M_ALD(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
2570                                 M_ALD(REG_ITMP2, REG_PV, disp);
2571
2572                                 CODEGEN_CRITICAL_SECTION_START;
2573
2574                                 M_ILD(REG_ITMP1, REG_ITMP1, OFFSET(vftbl_t, baseval));
2575                                 M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2576                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2577
2578                                 CODEGEN_CRITICAL_SECTION_END;
2579
2580                                 M_SUB(REG_ITMP1, REG_ITMP3, REG_ITMP1);
2581                                 M_EXTSW(REG_ITMP1, REG_ITMP1);
2582                                 M_CMPU(REG_ITMP1, REG_ITMP2);
2583                                 M_CLR(d);
2584                                 M_BGT(1);
2585                                 M_IADD_IMM(REG_ZERO, 1, d);
2586
2587                                 if (super != NULL)
2588                                         emit_label(cd, BRANCH_LABEL_5);
2589                         }
2590
2591                         if (super == NULL) {
2592                                 emit_label(cd, BRANCH_LABEL_1);
2593                                 emit_label(cd, BRANCH_LABEL_4);
2594                         }
2595
2596                         emit_store_dst(jd, iptr, d);
2597                         }
2598                         break;
2599
2600                 case ICMD_MULTIANEWARRAY:/* ..., cnt1, [cnt2, ...] ==> ..., arrayref  */
2601
2602                         /* check for negative sizes and copy sizes to stack if necessary  */
2603
2604                         MCODECHECK((iptr->s1.argcount << 1) + 64);
2605
2606                         for (s1 = iptr->s1.argcount; --s1 >= 0; ) {
2607
2608                                 var = VAR(iptr->sx.s23.s2.args[s1]);
2609
2610                                 /* copy SAVEDVAR sizes to stack */
2611
2612                                 if (!(var->flags & PREALLOC)) {
2613                                         s2 = emit_load(jd, iptr, var, REG_ITMP1);
2614 #if defined(__DARWIN__)
2615                                         M_LST(s2, REG_SP, LA_SIZE + (s1 + INT_ARG_CNT) * 8);
2616 #else
2617                                         M_LST(s2, REG_SP, LA_SIZE + (s1 + 3) * 8);
2618 #endif
2619                                 }
2620                         }
2621
2622                         /* a0 = dimension count */
2623
2624                         ICONST(REG_A0, iptr->s1.argcount);
2625
2626                         /* is patcher function set? */
2627
2628                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2629                                 disp = dseg_add_unique_address(cd, NULL);
2630
2631                                 codegen_addpatchref(cd, PATCHER_builtin_multianewarray,
2632                                                                         iptr->sx.s23.s3.c.ref, disp);
2633                         } else {
2634                                 disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2635                         }
2636
2637                         /* a1 = arraydescriptor */
2638
2639                         M_ALD(REG_A1, REG_PV, disp);
2640
2641                         /* a2 = pointer to dimensions = stack pointer */
2642
2643 #if defined(__DARWIN__)
2644                         M_LDA(REG_A2, REG_SP, LA_SIZE + INT_ARG_CNT * 8);
2645 #else
2646                         M_LDA(REG_A2, REG_SP, LA_SIZE + 3 * 8);
2647 #endif
2648
2649                         disp = dseg_add_functionptr(cd, BUILTIN_multianewarray);
2650                         M_ALD(REG_ITMP3, REG_PV, disp);
2651                         M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
2652                         M_MTCTR(REG_ITMP3);
2653                         M_JSR;
2654
2655                         /* check for exception before result assignment */
2656                         emit_exception_check(cd, iptr);
2657
2658                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2659                         M_INTMOVE(REG_RESULT, d);
2660                         emit_store_dst(jd, iptr, d);
2661                         break;
2662
2663                 default:
2664                         exceptions_throw_internalerror("Unknown ICMD %d during code generation",
2665                                                                                    iptr->opc);
2666                         return false;
2667         } /* switch */
2668
2669         } /* for instruction */
2670
2671         } /* if (bptr -> flags >= BBREACHED) */
2672         } /* for basic block */
2673
2674         dseg_createlinenumbertable(cd);
2675
2676         /* generate stubs */
2677
2678         emit_patcher_stubs(jd);
2679         REPLACEMENT_EMIT_STUBS(jd);
2680
2681         /* everything's ok */
2682
2683         return true;
2684 }
2685
2686
2687 /* codegen_emit_stub_compiler **************************************************
2688
2689    Emits a stub routine which calls the compiler.
2690
2691 *******************************************************************************/
2692
2693 void codegen_emit_stub_compiler(jitdata *jd)
2694 {
2695         methodinfo  *m;
2696         codegendata *cd;
2697
2698         /* get required compiler data */
2699
2700         m  = jd->m;
2701         cd = jd->cd;
2702
2703         /* code for the stub */
2704
2705         M_ALD_INTERN(REG_ITMP1, REG_PV, -2 * SIZEOF_VOID_P);
2706         M_ALD_INTERN(REG_PV, REG_PV, -3 * SIZEOF_VOID_P);
2707         M_MTCTR(REG_PV);
2708         M_RTS;
2709 }
2710
2711
2712 /* codegen_emit_stub_native ****************************************************
2713
2714    Emits a stub routine which calls a native method.
2715
2716 *******************************************************************************/
2717
2718 void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f)
2719 {
2720         methodinfo  *m;
2721         codeinfo    *code;
2722         codegendata *cd;
2723         methoddesc  *md;
2724         s4           nativeparams;
2725         s4           i, j;
2726         s4           t;
2727         s4           s1, s2, disp;
2728         s4           funcdisp;
2729
2730         /* get required compiler data */
2731
2732         m    = jd->m;
2733         code = jd->code;
2734         cd   = jd->cd;
2735
2736         /* set some variables */
2737
2738         md = m->parseddesc;
2739         nativeparams = (m->flags & ACC_STATIC) ? 2 : 1;
2740
2741         /* calculate stackframe size */
2742
2743         cd->stackframesize =
2744                 sizeof(stackframeinfo) / SIZEOF_VOID_P +
2745                 sizeof(localref_table) / SIZEOF_VOID_P +
2746                 4 +                            /* 4 stackframeinfo arguments (darwin)*/
2747                 nmd->paramcount  +
2748                 nmd->memuse;
2749
2750 /*      cd->stackframesize = (cd->stackframesize + 3) & ~3;*/ /* keep stack 16-byte aligned */
2751
2752         /* create method header */
2753
2754         (void) dseg_add_unique_address(cd, code);                      /* CodeinfoPointer */
2755         (void) dseg_add_unique_s4(cd, cd->stackframesize * 8);             /* FrameSize       */
2756         (void) dseg_add_unique_s4(cd, 0);                              /* IsSync          */
2757         (void) dseg_add_unique_s4(cd, 0);                              /* IsLeaf          */
2758         (void) dseg_add_unique_s4(cd, 0);                              /* IntSave         */
2759         (void) dseg_add_unique_s4(cd, 0);                              /* FltSave         */
2760         (void) dseg_addlinenumbertablesize(cd);
2761         (void) dseg_add_unique_s4(cd, 0);                              /* ExTableSize     */
2762
2763         /* generate code */
2764
2765         M_MFLR(REG_ZERO);
2766         M_AST_INTERN(REG_ZERO, REG_SP, LA_LR_OFFSET);
2767         M_STDU(REG_SP, REG_SP, -(cd->stackframesize * 8));
2768
2769 #if !defined(NDEBUG)
2770         if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
2771                 emit_verbosecall_enter(jd);
2772         }
2773 #endif
2774         /* get function address (this must happen before the stackframeinfo) */
2775
2776         funcdisp = dseg_add_functionptr(cd, f);
2777
2778 #if !defined(WITH_STATIC_CLASSPATH)
2779         if (f == NULL) {
2780                 codegen_addpatchref(cd, PATCHER_resolve_native, m, funcdisp);
2781         }
2782 #endif
2783
2784         /* save integer and float argument registers */
2785
2786         j = 0;
2787
2788         for (i = 0; i < md->paramcount; i++) {
2789                 t = md->paramtypes[i].type;
2790
2791                 if (IS_INT_LNG_TYPE(t)) {
2792                         if (!md->params[i].inmemory) {
2793                                 s1 = md->params[i].regoff;
2794                                 M_LST(s1, REG_SP, LA_SIZE + PA_SIZE + 4*8 + j * 8);
2795                                 j++;
2796                         }
2797                 }
2798         }
2799
2800         for (i = 0; i < md->paramcount; i++) {
2801                 if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
2802                         if (!md->params[i].inmemory) {
2803                                 s1 = md->params[i].regoff;
2804                                 M_DST(s1, REG_SP, LA_SIZE + PA_SIZE + 4*8 + j * 8);
2805                                 j++;
2806                         }
2807                 }
2808         }
2809
2810         /* create native stack info */
2811
2812         M_AADD_IMM(REG_SP, cd->stackframesize * 8, REG_A0);
2813         M_MOV(REG_PV, REG_A1);
2814         M_AADD_IMM(REG_SP, cd->stackframesize * 8, REG_A2);
2815         M_ALD(REG_A3, REG_SP, cd->stackframesize * 8 + LA_LR_OFFSET);
2816         disp = dseg_add_functionptr(cd, codegen_start_native_call);
2817
2818         M_ALD(REG_ITMP1, REG_PV, disp);
2819         M_ALD(REG_ITMP1, REG_ITMP1, 0);         /* TOC */
2820         M_MTCTR(REG_ITMP1);
2821         M_JSR;
2822
2823         /* restore integer and float argument registers */
2824
2825         j = 0;
2826
2827         for (i = 0; i < md->paramcount; i++) {
2828                 t = md->paramtypes[i].type;
2829
2830                 if (IS_INT_LNG_TYPE(t)) {
2831                         if (!md->params[i].inmemory) {
2832                                 s1 = md->params[i].regoff;
2833                                 M_LLD(s1, REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + j * 8);
2834                                 j++;
2835                         }
2836                 }
2837         }
2838
2839         for (i = 0; i < md->paramcount; i++) {
2840                 if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
2841                         if (!md->params[i].inmemory) {
2842                                 s1 = md->params[i].regoff;
2843                                 M_DLD(s1, REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + j * 8);
2844                                 j++;
2845                         }
2846                 }
2847         }
2848
2849         /* copy or spill arguments to new locations */
2850
2851         for (i = md->paramcount - 1, j = i + nativeparams; i >= 0; i--, j--) {
2852                 t = md->paramtypes[i].type;
2853
2854                 if (IS_INT_LNG_TYPE(t)) {
2855                         if (!md->params[i].inmemory) {
2856                                 s1 = md->params[i].regoff;
2857                                 s2 = nmd->params[j].regoff;
2858
2859                                 if (!nmd->params[j].inmemory)
2860                                         M_INTMOVE(s1, s2);
2861                                 else
2862                                         M_LST(s1, REG_SP, s2 * 8);
2863                         }
2864                         else {
2865                                 s1 = md->params[i].regoff + cd->stackframesize;
2866                                 s2 = nmd->params[j].regoff;
2867
2868                                 M_LLD(REG_ITMP1, REG_SP, s1 * 8);
2869                                 M_LST(REG_ITMP1, REG_SP, s2 * 8);
2870                         }
2871                 }
2872                 else {
2873                         /* We only copy spilled float arguments, as the float
2874                            argument registers keep unchanged. */
2875
2876                         if (md->params[i].inmemory) {
2877                                 s1 = md->params[i].regoff + cd->stackframesize;
2878                                 s2 = nmd->params[j].regoff;
2879
2880                                 M_DLD(REG_FTMP1, REG_SP, s1 * 8);
2881
2882                                 if (IS_2_WORD_TYPE(t))
2883                                         M_DST(REG_FTMP1, REG_SP, s2 * 8);
2884                                 else
2885                                         M_FST(REG_FTMP1, REG_SP, s2 * 8 + 4);
2886                         }
2887                 }
2888         }
2889
2890         /* put class into second argument register */
2891
2892         if (m->flags & ACC_STATIC) {
2893                 disp = dseg_add_unique_address(cd, m->class);
2894                 M_ALD(REG_A1, REG_PV, disp);
2895         }
2896
2897         /* put env into first argument register */
2898
2899         disp = dseg_add_unique_address(cd, _Jv_env);
2900         M_ALD(REG_A0, REG_PV, disp);
2901
2902         /* generate the actual native call */
2903         /* native functions have a different TOC for sure */
2904
2905         M_AST(REG_TOC, REG_SP, 40);     /* save old TOC */
2906         M_ALD(REG_ITMP3, REG_PV, funcdisp);
2907         M_ALD(REG_TOC, REG_ITMP3, 8);   /* load TOC from func. descriptor */
2908         M_ALD(REG_ITMP3, REG_ITMP3, 0);
2909         M_MTCTR(REG_ITMP3);
2910         M_JSR;
2911         M_ALD(REG_TOC, REG_SP, 40);     /* restore TOC */
2912
2913         /* save return value */
2914
2915         if (md->returntype.type != TYPE_VOID) {
2916                 if (IS_INT_LNG_TYPE(md->returntype.type)) {
2917                         M_LST(REG_RESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
2918                 }
2919                 else {
2920                         M_DST(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
2921                 }
2922         }
2923
2924         /* print call trace */
2925 #if ! defined(NDEBGUU)
2926         if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
2927                 emit_verbosecall_exit(jd);
2928         }
2929 #endif
2930         /* remove native stackframe info */
2931
2932         M_AADD_IMM(REG_SP, cd->stackframesize * 8, REG_A0);
2933         disp = dseg_add_functionptr(cd, codegen_finish_native_call);
2934         M_ALD(REG_ITMP1, REG_PV, disp);
2935         M_ALD(REG_ITMP1, REG_ITMP1, 0); /* XXX what about TOC? */
2936         M_MTCTR(REG_ITMP1);
2937         M_JSR;
2938         M_MOV(REG_RESULT, REG_ITMP1_XPTR);
2939
2940         /* restore return value */
2941
2942         if (md->returntype.type != TYPE_VOID) {
2943                 if (IS_INT_LNG_TYPE(md->returntype.type)) {
2944                         M_LLD(REG_RESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
2945                 }
2946                 else {
2947 /*                      if (IS_2_WORD_TYPE(md->returntype.type)) */
2948                                 M_DLD(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
2949 /*                      else
2950                                 M_FLD(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8); F XXX
2951                                 */
2952                 }
2953         }
2954
2955         M_ALD(REG_ITMP2_XPC, REG_SP, cd->stackframesize * 8 + LA_LR_OFFSET);
2956         M_MTLR(REG_ITMP2_XPC);
2957         M_LDA(REG_SP, REG_SP, cd->stackframesize * 8); /* remove stackframe           */
2958
2959         /* check for exception */
2960
2961         M_TST(REG_ITMP1_XPTR);
2962         M_BNE(1);                           /* if no exception then return        */
2963
2964         M_RET;
2965
2966         /* handle exception */
2967
2968         M_LADD_IMM(REG_ITMP2_XPC, -4, REG_ITMP2_XPC);  /* exception address       */
2969
2970         disp = dseg_add_functionptr(cd, asm_handle_nat_exception);
2971         M_ALD(REG_ITMP3, REG_PV, disp);
2972         M_MTCTR(REG_ITMP3);
2973         M_RTS;
2974
2975         /* generate patcher stub call code */
2976
2977         emit_patcher_stubs(jd);
2978 }
2979
2980
2981
2982
2983 /*
2984  * These are local overrides for various environment variables in Emacs.
2985  * Please do not remove this and leave it at the end of the file, where
2986  * Emacs will automagically detect them.
2987  * ---------------------------------------------------------------------
2988  * Local variables:
2989  * mode: c
2990  * indent-tabs-mode: t
2991  * c-basic-offset: 4
2992  * tab-width: 4
2993  * End:
2994  * vim:noexpandtab:sw=4:ts=4:
2995  */