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 7766 2007-04-19 13:24:48Z michi $
  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 "vm/builtin.h"
  48 #include "vm/exceptions.h"
  49 #include "vm/global.h"
  50 #include "vm/stringlocal.h"
  51 #include "vm/vm.h"
  52
  53 #include "vm/jit/abi.h"
  54 #include "vm/jit/abi-asm.h"
  55 #include "vm/jit/md.h"
  56 #include "vm/jit/asmpart.h"
  57 #include "vm/jit/codegen-common.h"
  58 #include "vm/jit/dseg.h"
  59 #include "vm/jit/emit-common.h"
  60 #include "vm/jit/jit.h"
  61 #include "vm/jit/parse.h"
  62 #include "vm/jit/patcher.h"
  63 #include "vm/jit/reg.h"
  64 #include "vm/jit/replace.h"
  65 #include "vm/jit/stacktrace.h"
  66
  67 #include "vmcore/loader.h"
  68 #include "vmcore/options.h"
  69
  70 #if defined(ENABLE_LSRA)
  71 # include "vm/jit/allocator/lsra.h"
  72 #endif
  73
  74 #if defined(ENABLE_THREADS)
  75 # include "threads/native/lock.h"
  76 #endif
  77
  78
  79 /* codegen_emit ****************************************************************
  80
  81    Generates machine code.
  82
  83 *******************************************************************************/
  84
  85 bool codegen_emit(jitdata *jd)
  86 {
  87         methodinfo         *m;
  88         codeinfo           *code;
  89         codegendata        *cd;
  90         registerdata       *rd;
  91         s4                  len, s1, s2, s3, d, disp;
  92         ptrint              a;
  93         varinfo            *var;
  94         basicblock         *bptr;
  95         instruction        *iptr;
  96         exception_entry    *ex;
  97         u2                  currentline;
  98         methodinfo         *lm;             /* local methodinfo for ICMD_INVOKE*  */
  99         unresolved_method  *um;
 100         builtintable_entry *bte;
 101         methoddesc         *md;
 102         s4                  fieldtype;
 103         s4                  varindex;
 104         unresolved_field   *uf;
 105         fieldinfo          *fi;
 106
 107         /* get required compiler data */
 108
 109         m    = jd->m;
 110         code = jd->code;
 111         cd   = jd->cd;
 112         rd   = jd->rd;
 113
 114         /* prevent compiler warnings */
 115
 116         d = 0;
 117         lm = NULL;
 118         bte = NULL;
 119
 120         {
 121         s4 i, p, t, l;
 122         s4 savedregs_num;
 123
 124         savedregs_num = 0;
 125
 126         /* space to save used callee saved registers */
 127
 128         savedregs_num += (INT_SAV_CNT - rd->savintreguse);
 129         savedregs_num += (FLT_SAV_CNT - rd->savfltreguse);
 130
 131         cd->stackframesize = rd->memuse + savedregs_num;
 132
 133 #if defined(ENABLE_THREADS)
 134         /* space to save argument of monitor_enter and Return Values to survive */
 135     /* monitor_exit. The stack position for the argument can not be shared  */
 136         /* with place to save the return register on PPC64, since both values     */
 137         /* reside in R3 */
 138         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
 139                 /* reserve 2 slots for long/double return values for monitorexit */
 140                 cd->stackframesize += 2;
 141         }
 142
 143 #endif
 144
 145         /* create method header */
 146
 147         /* align stack to 16-bytes */
 148
 149 /* FIXME */
 150 /*      if (!m->isleafmethod || opt_verbosecall) */
 151 /*              stackframesize = (stackframesize + 3) & ~3;
 152 */
 153 /*      else if (m->isleafmethod && (stackframesize == LA_WORD_SIZE)) */
 154 /*              stackframesize = 0; */
 155
 156         (void) dseg_add_unique_address(cd, code);                      /* CodeinfoPointer */
 157         (void) dseg_add_unique_s4(cd, cd->stackframesize * 8);             /* FrameSize       */
 158
 159 #if defined(ENABLE_THREADS)
 160         /* IsSync contains the offset relative to the stack pointer for the
 161            argument of monitor_exit used in the exception handler. Since the
 162            offset could be zero and give a wrong meaning of the flag it is
 163            offset by one.
 164         */
 165
 166         if (checksync && (m->flags & ACC_SYNCHRONIZED))
 167                 (void) dseg_add_unique_s4(cd, (rd->memuse + 1) * 8);       /* IsSync          */
 168         else
 169 #endif
 170                 (void) dseg_add_unique_s4(cd, 0);                          /* IsSync          */
 171
 172         (void) dseg_add_unique_s4(cd, jd->isleafmethod);                /* IsLeaf          */
 173         (void) dseg_add_unique_s4(cd, INT_SAV_CNT - rd->savintreguse); /* IntSave         */
 174         (void) dseg_add_unique_s4(cd, FLT_SAV_CNT - rd->savfltreguse); /* FltSave         */
 175
 176         dseg_addlinenumbertablesize(cd);
 177
 178         (void) dseg_add_unique_s4(cd, jd->exceptiontablelength);       /* ExTableSize     */
 179
 180         /* create exception table */
 181
 182         for (ex = jd->exceptiontable; ex != NULL; ex = ex->down) {
 183                 dseg_add_target(cd, ex->start);
 184                 dseg_add_target(cd, ex->end);
 185                 dseg_add_target(cd, ex->handler);
 186                 (void) dseg_add_unique_address(cd, ex->catchtype.any);
 187         }
 188
 189         /* create stack frame (if necessary) */
 190
 191         if (!jd->isleafmethod) {
 192                 M_MFLR(REG_ZERO);
 193                 M_AST(REG_ZERO, REG_SP, LA_LR_OFFSET);
 194         }
 195
 196         if (cd->stackframesize)
 197                 M_STDU(REG_SP, REG_SP, -cd->stackframesize * 8);
 198
 199         /* save return address and used callee saved registers */
 200
 201         p = cd->stackframesize;
 202         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
 203                 p--; M_LST(rd->savintregs[i], REG_SP, p * 8);
 204         }
 205         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
 206                 p --; M_DST(rd->savfltregs[i], REG_SP, p * 8);
 207         }
 208
 209         /* take arguments out of register or stack frame */
 210
 211         md = m->parseddesc;
 212
 213         for (p = 0, l = 0; p < md->paramcount; p++) {
 214                 t = md->paramtypes[p].type;
 215                 varindex = jd->local_map[l*5 + t];
 216                 l++;
 217                 if (IS_2_WORD_TYPE(t))    /* increment local counter for 2 word types */
 218                         l++;
 219                 if (varindex == UNUSED)
 220                         continue;
 221
 222                 var = VAR(varindex);
 223                 s1  = md->params[p].regoff;
 224
 225                 if (IS_INT_LNG_TYPE(t)) {
 226                         if (!md->params[p].inmemory) {
 227                                 if (!IS_INMEMORY(var->flags))
 228                                         M_INTMOVE(s1, var->vv.regoff);
 229                                 else
 230                                         M_LST(s1, REG_SP, var->vv.regoff * 8);
 231                         }
 232                         else {
 233                                 if (!IS_INMEMORY(var->flags))
 234                                         M_LLD(var->vv.regoff, REG_SP, (cd->stackframesize + s1) * 8);
 235                                 else
 236                                         var->vv.regoff = cd->stackframesize + s1;
 237                         }
 238                 }
 239                 else {
 240                         if (!md->params[p].inmemory) {
 241                                 if (!IS_INMEMORY(var->flags))
 242                                         M_FLTMOVE(s1, var->vv.regoff);
 243                                 else
 244                                         M_DST(s1, REG_SP, var->vv.regoff * 8);
 245                         }
 246                         else {
 247                                 if (!(var->flags & INMEMORY)) {
 248                                         if (IS_2_WORD_TYPE(t))
 249                                                 M_DLD(var->vv.regoff, REG_SP, (cd->stackframesize + s1) * 8);
 250                                         else
 251                                                 M_DLD(var->vv.regoff, REG_SP, (cd->stackframesize + s1) * 8);
 252                                 }
 253                                 else
 254                                         var->vv.regoff = cd->stackframesize + s1;
 255                         }
 256                 }
 257         }
 258
 259         /* save monitorenter argument */
 260
 261 #if defined(ENABLE_THREADS)
 262
 263         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
 264
 265                 /* stackoffset for argument used for LOCK_monitor_exit */
 266                 s1 = rd->memuse;
 267
 268 #if !defined (NDEBUG)
 269                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 270                         M_AADD_IMM(REG_SP, -((LA_SIZE_IN_POINTERS + PA_SIZE_IN_POINTERS + ARG_CNT) * 8), REG_SP);
 271
 272                         for (p = 0; p < INT_ARG_CNT; p++)
 273                                 M_LST(abi_registers_integer_argument[p], REG_SP, LA_SIZE + PA_SIZE + p * 8);
 274
 275                         for (p = 0; p < FLT_ARG_CNT; p++)
 276                                 M_DST(abi_registers_float_argument[p], REG_SP, LA_SIZE + PA_SIZE + (INT_ARG_CNT + p) * 8);
 277
 278                         /* used for LOCK_monitor_exit, adopt size because we created another stackframe */
 279                         s1 += (LA_SIZE_IN_POINTERS + PA_SIZE_IN_POINTERS + ARG_CNT);
 280                 }
 281 #endif
 282
 283                 p = dseg_add_functionptr(cd, LOCK_monitor_enter);
 284                 M_ALD(REG_ITMP3, REG_PV, p);
 285                 M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
 286                 M_MTCTR(REG_ITMP3);
 287
 288                 /* get or test the lock object */
 289
 290                 if (m->flags & ACC_STATIC) {
 291                         p = dseg_add_address(cd, &m->class->object.header);
 292                         M_ALD(REG_A0, REG_PV, p);
 293                 }
 294                 else {
 295                         M_TST(REG_A0);
 296                         M_BNE(1);
 297                         M_ALD_INTERN(REG_ZERO, REG_ZERO, EXCEPTION_HARDWARE_NULLPOINTER);
 298                 }
 299
 300                 M_AST(REG_A0, REG_SP, s1 * 8);                      /* rd->memuse * 8 */
 301                 M_JSR;
 302
 303 #if !defined(NDEBUG)
 304                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 305                         for (p = 0; p < INT_ARG_CNT; p++)
 306                                 M_LLD(abi_registers_integer_argument[p], REG_SP, LA_SIZE + PA_SIZE + p * 8);
 307
 308                         for (p = 0; p < FLT_ARG_CNT; p++)
 309                                 M_DLD(abi_registers_float_argument[p], REG_SP, LA_SIZE + PA_SIZE + (INT_ARG_CNT + p) * 8);
 310
 311                         M_AADD_IMM(REG_SP, (LA_SIZE_IN_POINTERS + PA_SIZE_IN_POINTERS + ARG_CNT) * 8, REG_SP);
 312                 }
 313 #endif
 314         }
 315 #endif
 316
 317         /* call trace function */
 318 #if !defined (NDEBUG)
 319         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
 320                 emit_verbosecall_enter(jd);
 321
 322         }
 323 #endif
 324
 325         /* end of header generation */
 326
 327         /* create replacement points */
 328
 329         REPLACEMENT_POINTS_INIT(cd, jd);
 330
 331         /* walk through all basic blocks */
 332
 333         for (bptr = jd->basicblocks; bptr != NULL; bptr = bptr->next) {
 334
 335                 bptr->mpc = (s4) (cd->mcodeptr - cd->mcodebase);
 336
 337                 if (bptr->flags >= BBREACHED) {
 338
 339                 /* branch resolving */
 340                 codegen_resolve_branchrefs(cd, bptr);
 341
 342                 /* handle replacement points */
 343
 344                 REPLACEMENT_POINT_BLOCK_START(cd, bptr);
 345
 346                 /* copy interface registers to their destination */
 347
 348                 len = bptr->indepth;
 349                 MCODECHECK(64+len);
 350
 351 #if defined(ENABLE_LSRA)
 352                 if (opt_lsra) {
 353                         while (len) {
 354                                 len--;
 355                                 var = VAR(bptr->invars[len]);
 356                                 if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 357                                         /* d = reg_of_var(m, var, REG_ITMP1); */
 358                                         if (!(var->flags & INMEMORY))
 359                                                 d = var->vv.regoff;
 360                                         else
 361                                                 d = REG_ITMP1;
 362                                         M_INTMOVE(REG_ITMP1, d);
 363                                         emit_store(jd, NULL, var, d);
 364                                 }
 365                         }
 366                 } else {
 367 #endif
 368                 while (len) {
 369                         len--;
 370                         var = VAR(bptr->invars[len]);
 371                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 372                                 d = codegen_reg_of_var(0, var, REG_ITMP1);
 373                                 M_INTMOVE(REG_ITMP1, d);
 374                                 emit_store(jd, NULL, var, d);
 375                         }
 376                         else {
 377                                 assert((var->flags & INOUT));
 378                         }
 379                 }
 380
 381 #if defined(ENABLE_LSRA)
 382                 }
 383 #endif
 384                 /* walk through all instructions */
 385
 386                 len = bptr->icount;
 387                 currentline = 0;
 388
 389                 for (iptr = bptr->iinstr; len > 0; len--, iptr++) {
 390                         if (iptr->line != currentline) {
 391                                 dseg_addlinenumber(cd, iptr->line);
 392                                 currentline = iptr->line;
 393                         }
 394
 395                         MCODECHECK(64);   /* an instruction usually needs < 64 words      */
 396
 397                 switch (iptr->opc) {
 398                 case ICMD_NOP:        /* ...  ==> ...                                 */
 399                 case ICMD_POP:        /* ..., value  ==> ...                          */
 400                 case ICMD_POP2:       /* ..., value, value  ==> ...                   */
 401                         break;
 402
 403                 case ICMD_INLINE_START:
 404
 405                         REPLACEMENT_POINT_INLINE_START(cd, iptr);
 406                         break;
 407
 408                 case ICMD_INLINE_BODY:
 409
 410                         REPLACEMENT_POINT_INLINE_BODY(cd, iptr);
 411                         dseg_addlinenumber_inline_start(cd, iptr);
 412                         dseg_addlinenumber(cd, iptr->line);
 413                         break;
 414
 415                 case ICMD_INLINE_END:
 416
 417                         dseg_addlinenumber_inline_end(cd, iptr);
 418                         dseg_addlinenumber(cd, iptr->line);
 419                         break;
 420
 421                 case ICMD_CHECKNULL:  /* ..., objectref  ==> ..., objectref           */
 422
 423                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 424                         M_TST(s1);
 425                         M_BEQ(0);
 426                         emit_nullpointer_check(cd, iptr, s1);
 427                         break;
 428
 429                 /* constant operations ************************************************/
 430
 431                 case ICMD_ICONST:     /* ...  ==> ..., constant                       */
 432
 433                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 434                         ICONST(d, iptr->sx.val.i);
 435                         emit_store_dst(jd, iptr, d);
 436                         break;
 437
 438                 case ICMD_LCONST:     /* ...  ==> ..., constant                       */
 439
 440                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 441                         LCONST(d, iptr->sx.val.l);
 442                         emit_store_dst(jd, iptr, d);
 443                         break;
 444
 445                 case ICMD_FCONST:     /* ...  ==> ..., constant                       */
 446
 447                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 448                         a = dseg_add_float(cd, iptr->sx.val.f);
 449                         M_FLD(d, REG_PV, a);
 450                         emit_store_dst(jd, iptr, d);
 451                         break;
 452
 453                 case ICMD_DCONST:     /* ...  ==> ..., constant                       */
 454
 455                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 456                         a = dseg_add_double(cd, iptr->sx.val.d);
 457                         M_DLD(d, REG_PV, a);
 458                         emit_store_dst(jd, iptr, d);
 459                         break;
 460
 461                 case ICMD_ACONST:     /* ...  ==> ..., constant                       */
 462
 463                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 464
 465                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
 466                                 disp = dseg_add_unique_address(cd, iptr->sx.val.c.ref);
 467                                 codegen_addpatchref(cd, PATCHER_aconst,
 468                                                                         iptr->sx.val.c.ref,
 469                                                                     disp);
 470                         } else  {
 471                                 disp = dseg_add_address(cd, iptr->sx.val.anyptr);
 472                         }
 473                         M_ALD(d, REG_PV, disp);
 474                         emit_store_dst(jd, iptr, d);
 475                         break;
 476
 477
 478                 /* load/store/copy/move operations ************************************/
 479
 480                 case ICMD_ILOAD:      /* ...  ==> ..., content of local variable      */
 481                 case ICMD_ALOAD:      /* s1.localindex = local variable               */
 482                 case ICMD_LLOAD:
 483                 case ICMD_FLOAD:
 484                 case ICMD_DLOAD:
 485                 case ICMD_ISTORE:     /* ..., value  ==> ...                          */
 486                 case ICMD_LSTORE:
 487                 case ICMD_FSTORE:
 488                 case ICMD_DSTORE:
 489                 case ICMD_COPY:
 490                 case ICMD_MOVE:
 491
 492                         emit_copy(jd, iptr);
 493                         break;
 494
 495                 case ICMD_ASTORE:
 496                         if (!(iptr->flags.bits & INS_FLAG_RETADDR))
 497                                 emit_copy(jd, iptr);
 498                         break;
 499
 500
 501                 /* integer operations *************************************************/
 502
 503                 case ICMD_INEG:       /* ..., value  ==> ..., - value                 */
 504                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 505                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 506                         M_NEG(s1, d);
 507                         M_EXTSW(d, d);
 508                         emit_store_dst(jd, iptr, d);
 509                         break;
 510
 511                 case ICMD_LNEG:
 512                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 513                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 514                         M_NEG(s1, d);
 515                         emit_store_dst(jd, iptr, d);
 516                         break;
 517
 518
 519                 case ICMD_I2L:        /* ..., value  ==> ..., value                   */
 520
 521                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 522                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 523                         M_INTMOVE(s1, d);
 524                         emit_store_dst(jd, iptr, d);
 525                         break;
 526
 527                 case ICMD_L2I:        /* ..., value  ==> ..., value                   */
 528
 529                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 530                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 531                         M_ISEXT(s1, d);
 532                         emit_store_dst(jd, iptr, d);
 533                         break;
 534
 535                 case ICMD_INT2BYTE:   /* ..., value  ==> ..., value                   */
 536
 537                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 538                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 539                         M_BSEXT(s1, d);
 540                         emit_store_dst(jd, iptr, d);
 541                         break;
 542
 543                 case ICMD_INT2CHAR:   /* ..., value  ==> ..., value                   */
 544
 545                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 546                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 547                         M_CZEXT(s1, d);
 548                         emit_store_dst(jd, iptr, d);
 549                         break;
 550
 551                 case ICMD_INT2SHORT:  /* ..., value  ==> ..., value                   */
 552
 553                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 554                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 555                         M_SSEXT(s1, d);
 556                         emit_store_dst(jd, iptr, d);
 557                         break;
 558
 559
 560                 case ICMD_IADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 561
 562                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 563                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 564                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 565                         M_IADD(s1, s2, d);
 566                         M_EXTSW(d,d);
 567                         emit_store_dst(jd, iptr, d);
 568                         break;
 569
 570                 case ICMD_IINC:
 571                 case ICMD_IADDCONST:
 572
 573                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 574                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 575                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767)) {
 576                                 M_IADD_IMM(s1, iptr->sx.val.i, d);
 577                         } else {
 578                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 579                                 M_IADD(s1, REG_ITMP2, d);
 580                         }
 581                         M_EXTSW(d,d);
 582                         emit_store_dst(jd, iptr, d);
 583                         break;
 584
 585                 case ICMD_LADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 586
 587                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 588                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 589                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 590                         M_LADD(s1, s2, d);
 591                         emit_store_dst(jd, iptr, d);
 592                         break;
 593
 594                 case ICMD_LADDCONST:  /* ..., value  ==> ..., value + constant        */
 595                                       /* sx.val.l = constant                          */
 596
 597                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 598                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 599                         /* XXX check me */
 600                         if ((iptr->sx.val.l >= -32768) && (iptr->sx.val.l <= 32767)) {
 601                                 M_LADD_IMM(s1, iptr->sx.val.l, d);
 602                         } else {
 603                                 LCONST(REG_ITMP2, iptr->sx.val.l);
 604                                 M_LADD(s1, REG_ITMP2, d);
 605                         }
 606                         emit_store_dst(jd, iptr, d);
 607                         break;
 608
 609                 case ICMD_ISUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 610
 611                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 612                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 613                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 614                         M_SUB(s1, s2, d);
 615                         M_EXTSW(d, d);
 616                         emit_store_dst(jd, iptr, d);
 617                         break;
 618
 619                 case ICMD_ISUBCONST:  /* ..., value  ==> ..., value + constant        */
 620                                       /* sx.val.i = constant                          */
 621
 622                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 623                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 624                         if ((iptr->sx.val.i >= -32767) && (iptr->sx.val.i <= 32768)) {
 625                                 M_IADD_IMM(s1, -iptr->sx.val.i, d);
 626                         } else {
 627                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 628                                 M_SUB(s1, REG_ITMP2, d);
 629                         }
 630                         M_EXTSW(d, d);
 631                         emit_store_dst(jd, iptr, d);
 632                         break;
 633
 634                 case ICMD_LSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 635
 636                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 637                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 638                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 639                         M_SUB(s1, s2, d);
 640                         emit_store_dst(jd, iptr, d);
 641                         break;
 642
 643                 case ICMD_LSUBCONST:  /* ..., value  ==> ..., value - constant        */
 644                                       /* sx.val.l = constant                          */
 645
 646                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 647                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 648                         /* XXX check me */
 649                         if ((iptr->sx.val.l >= -32767) && (iptr->sx.val.l <= 32767)) {
 650                                 M_LADD_IMM(s1, -iptr->sx.val.l, d);
 651                         } else {
 652                                 LCONST(REG_ITMP2, iptr->sx.val.l);
 653                                 M_SUB(s1, REG_ITMP2, d);
 654                         }
 655                         emit_store_dst(jd, iptr, d);
 656                         break;
 657
 658                 case ICMD_IDIV:
 659                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 660                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 661                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 662                         emit_arithmetic_check(cd, iptr, s2);
 663
 664                         M_DIV(s1, s2, d);
 665                         M_EXTSW(d, d);
 666                         emit_store_dst(jd, iptr, d);
 667                         break;
 668
 669                 case ICMD_LDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 670
 671                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 672                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 673                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 674                         emit_arithmetic_check(cd, iptr, s2);
 675
 676                         M_DIV(s1, s2, d);
 677                         /* we need to test if divident was 0x8000000000000, bit OV is set in XER in this case */
 678                         /* we only need to check this if we did a LDIV, not for IDIV */
 679                         M_MFXER(REG_ITMP2);
 680                         M_ANDIS(REG_ITMP2, 0x4000, REG_ITMP2);  /* test OV */
 681                         M_BLE(1);
 682                         M_MOV(s1, d);                           /* java specs says result == dividend */
 683                         emit_store_dst(jd, iptr, d);
 684                         break;
 685
 686                 case ICMD_IREM:
 687                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 688                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 689                         emit_arithmetic_check(cd, iptr, s2);
 690
 691                         M_DIV(s1, s2,  REG_ITMP3);
 692                         M_MUL(REG_ITMP3, s2, REG_ITMP2);
 693                         M_SUB(s1, REG_ITMP2,  REG_ITMP3);
 694                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 695
 696                         M_MOV(REG_ITMP3, d);
 697                         emit_store_dst(jd, iptr, d);
 698                         break;
 699
 700
 701                 case ICMD_LREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 702                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 703                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 704                         emit_arithmetic_check(cd, iptr, s2);
 705
 706                         M_DIV(s1, s2,  REG_ITMP3);
 707                         /* we need to test if divident was 0x8000000000000, bit OV is set in XER in this case */
 708                         /* we only need to check this if we did a LDIV, not for IDIV */
 709                         M_MFXER(REG_ITMP2);
 710                         M_ANDIS(REG_ITMP2, 0x4000, REG_ITMP2);  /* test OV */
 711                         M_BLE(2);
 712                         LCONST(REG_ITMP3, 0);                   /* result == 0 in this case */
 713                         M_BR(2);
 714                         M_MUL(REG_ITMP3, s2, REG_ITMP2);
 715                         M_SUB(s1, REG_ITMP2,  REG_ITMP3);
 716                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 717
 718                         M_MOV(REG_ITMP3, d);
 719                         emit_store_dst(jd, iptr, d);
 720                         break;
 721
 722
 723                 case ICMD_IMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 724                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 725                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 726                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 727                         M_MUL(s1, s2, d);
 728                         M_EXTSW(d, d);
 729                         emit_store_dst(jd, iptr, d);
 730                         break;
 731
 732                 case ICMD_LMUL:
 733                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 734                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 735                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 736                         M_MUL(s1, s2, d);
 737                         emit_store_dst(jd, iptr, d);
 738                         break;
 739
 740                 case ICMD_IMULCONST:  /* ..., value  ==> ..., value * constant        */
 741                                       /* sx.val.i = constant                          */
 742
 743                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 744                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 745                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767))
 746                                 M_MUL_IMM(s1, iptr->sx.val.i, d);
 747                         else {
 748                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 749                                 M_MUL(s1, REG_ITMP3, d);
 750                         }
 751                         M_EXTSW(d, d);
 752                         emit_store_dst(jd, iptr, d);
 753                         break;
 754                 case ICMD_LMULCONST:
 755                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 756                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 757                         if ((iptr->sx.val.l >= -32767) && (iptr->sx.val.l <= 32767))
 758                                 M_MUL_IMM(s1, iptr->sx.val.l, d);
 759                         else {
 760                                 LCONST(REG_ITMP3, iptr->sx.val.l);
 761                                 M_MUL(s1, REG_ITMP3, d);
 762                         }
 763                         emit_store_dst(jd, iptr, d);
 764                         break;
 765
 766                 case ICMD_IDIVPOW2:   /* ..., value  ==> ..., value << constant       */
 767
 768                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 769                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 770                         M_SRA_IMM(s1, iptr->sx.val.i, d);
 771                         M_ADDZE(d, d);
 772                         M_EXTSW(d, d);
 773                         emit_store_dst(jd, iptr, d);
 774                         break;
 775
 776                 case ICMD_ISHL:       /* ..., val1, val2  ==> ..., val1 << val2       */
 777
 778                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 779                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 780                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 781                         M_AND_IMM(s2, 0x1f, REG_ITMP3);
 782                         M_SLL(s1, REG_ITMP3, d);
 783                         M_EXTSW(d, d);
 784                         emit_store_dst(jd, iptr, d);
 785                         break;
 786
 787                 case ICMD_ISHLCONST:  /* ..., value  ==> ..., value << constant       */
 788                                       /* sx.val.i = constant                             */
 789
 790                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 791                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 792                         M_SLL_IMM(s1, iptr->sx.val.i & 0x1f, d);
 793                         M_EXTSW(d,d);
 794                         emit_store_dst(jd, iptr, d);
 795                         break;
 796
 797                 case ICMD_ISHR:       /* ..., val1, val2  ==> ..., val1 >> val2       */
 798
 799                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 800                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 801                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 802                         M_AND_IMM(s2, 0x1f, REG_ITMP3);
 803                         M_SRA(s1, REG_ITMP3, d);
 804                         emit_store_dst(jd, iptr, d);
 805                         break;
 806
 807                 case ICMD_ISHRCONST:  /* ..., value  ==> ..., value >> constant       */
 808                                       /* sx.val.i = constant                             */
 809
 810                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 811                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 812                         M_SRA_IMM(s1, iptr->sx.val.i & 0x1f, d);
 813                         emit_store_dst(jd, iptr, d);
 814                         break;
 815
 816                 case ICMD_IUSHR:      /* ..., val1, val2  ==> ..., val1 >>> val2      */
 817
 818                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 819                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 820                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 821                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 822                         M_MOV(s1, REG_ITMP1);
 823                         M_CLR_HIGH(REG_ITMP1);
 824                         M_SRL(REG_ITMP1, REG_ITMP2, d);
 825                         M_EXTSW(d,d);   /* for the case it was shift 0 bits */
 826                         emit_store_dst(jd, iptr, d);
 827                         break;
 828
 829                 case ICMD_IUSHRCONST: /* ..., value  ==> ..., value >>> constant      */
 830                                       /* sx.val.i = constant                             */
 831
 832                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 833                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 834                         if (iptr->sx.val.i & 0x1f) {
 835                                 M_MOV(s1, REG_ITMP1);
 836                                 M_CLR_HIGH(REG_ITMP1);
 837                                 M_SRA_IMM(REG_ITMP1, iptr->sx.val.i & 0x1f, d);
 838                         } else {
 839                                 M_INTMOVE(s1, d);
 840                         }
 841                         emit_store_dst(jd, iptr, d);
 842                         break;
 843
 844                 case ICMD_LSHLCONST:
 845                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 846                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 847                         M_SLL_IMM(s1, iptr->sx.val.i & 0x3f, d);
 848                         emit_store_dst(jd, iptr, d);
 849                         break;
 850                 case ICMD_LSHL:
 851                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 852                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 853                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 854                         M_AND_IMM(s2, 0x3f, REG_ITMP2);
 855                         M_SLL(s1, REG_ITMP2, d);
 856                         emit_store_dst(jd, iptr, d);
 857                         break;
 858                 case ICMD_LSHRCONST:
 859                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 860                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 861                         M_SRA_IMM(s1, iptr->sx.val.i & 0x3f, d);
 862                         emit_store_dst(jd, iptr, d);
 863                         break;
 864                 case ICMD_LSHR:
 865                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 866                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 867                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 868                         M_AND_IMM(s2, 0x3f, REG_ITMP2);
 869                         M_SRA(s1, REG_ITMP2, d);
 870                         emit_store_dst(jd, iptr, d);
 871                         break;
 872                 case ICMD_LUSHRCONST:
 873                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 874                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 875                         M_SRL_IMM(s1, iptr->sx.val.i & 0x3f, d);
 876                         emit_store_dst(jd, iptr, d);
 877                         break;
 878                 case ICMD_LUSHR:
 879                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 880                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 881                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 882                         M_AND_IMM(s2, 0x3f, REG_ITMP2);
 883                         M_SRL(s1, REG_ITMP2, d);
 884                         emit_store_dst(jd, iptr, d);
 885                         break;
 886
 887                 case ICMD_IAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 888                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 889                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 890                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 891                         M_AND(s1, s2, d);
 892 /*                      M_EXTSW(d, d);*/
 893                         emit_store_dst(jd, iptr, d);
 894                         break;
 895
 896                 case ICMD_LAND:
 897                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 898                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 899                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 900                         M_AND(s1, s2, d);
 901                         emit_store_dst(jd, iptr, d);
 902                         break;
 903
 904                 case ICMD_IANDCONST:  /* ..., value  ==> ..., value & constant        */
 905                                       /* sx.val.i = constant                          */
 906
 907                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 908                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 909                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535)) {
 910                                 M_AND_IMM(s1, iptr->sx.val.i, d);
 911                                 }
 912                         /*
 913                         else if (iptr->sx.val.i == 0xffffff) {
 914                                 M_RLWINM(s1, 0, 8, 31, d);
 915                                 }
 916                         */
 917                         else {
 918                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 919                                 M_AND(s1, REG_ITMP3, d);
 920                         }
 921                         emit_store_dst(jd, iptr, d);
 922                         break;
 923
 924                 case ICMD_LANDCONST:  /* ..., value  ==> ..., value & constant        */
 925                                       /* sx.val.l = constant                          */
 926
 927                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 928                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 929                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
 930                                 M_AND_IMM(s1, iptr->sx.val.l, d);
 931                         /*
 932                         else if (iptr->sx.val.l == 0xffffff) {
 933                                 M_RLWINM(s1, 0, 8, 31, d);
 934                                 }
 935                         */
 936                         else {
 937                                 LCONST(REG_ITMP3, iptr->sx.val.l);
 938                                 M_AND(s1, REG_ITMP3, d);
 939                         }
 940                         emit_store_dst(jd, iptr, d);
 941                         break;
 942
 943                 case ICMD_IREMPOW2:   /* ..., value  ==> ..., value % constant        */
 944                                       /* sx.val.i = constant                             */
 945                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 946                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 947 #if 0
 948                         /* fast division, result in REG_ITMP3) */
 949                         M_SRA_IMM(s1, iptr->sx.val.i, REG_ITMP3);
 950                         M_ADDZE(REG_ITMP3, REG_ITMP3);
 951
 952                         M_SUB(s1, REG_ITMP3, d);
 953                         M_EXTSW(d, d);
 954                         emit_store_dst(jd, iptr, d);
 955                         break;
 956 #else
 957
 958                         M_MOV(s1, REG_ITMP2);
 959                         M_CMPI(s1, 0);
 960                         M_BGE(1 + 3*(iptr->sx.val.i >= 32768));
 961                         if (iptr->sx.val.i >= 32768) {
 962                                 M_ADDIS(REG_ZERO, iptr->sx.val.i >> 16, REG_ITMP2);
 963                                 M_EXTSW(REG_ITMP2, REG_ITMP2);
 964                                 M_OR_IMM(REG_ITMP2, iptr->sx.val.i, REG_ITMP2);
 965                                 M_IADD(s1, REG_ITMP2, REG_ITMP2);
 966                         } else {
 967                                 M_IADD_IMM(s1, iptr->sx.val.i, REG_ITMP2);
 968                         }
 969                         {
 970                                 int b=0, m = iptr->sx.val.i;
 971                                 while (m >>= 1)
 972                                         ++b;
 973                                 M_RLWINM(REG_ITMP2, 0, 0, 30-b, REG_ITMP2);
 974                         }
 975                         M_SUB(s1, REG_ITMP2, d);
 976                         M_EXTSW(d, d);
 977                         emit_store_dst(jd, iptr, d);
 978                         break;
 979 #endif
 980
 981                 case ICMD_IOR:        /* ..., val1, val2  ==> ..., val1 | val2        */
 982                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 983                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 984                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 985                         M_OR(s1, s2, d);
 986 /*                      M_EXTSW(d,d);*/
 987                         emit_store_dst(jd, iptr, d);
 988                         break;
 989
 990                 case ICMD_LOR:
 991
 992                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 993                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 994                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 995                         M_OR(s1, s2, d);
 996                         emit_store_dst(jd, iptr, d);
 997                         break;
 998
 999                 case ICMD_IORCONST:   /* ..., value  ==> ..., value | constant        */
1000                                       /* sx.val.i = constant                          */
1001
1002                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1003                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1004                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
1005                                 M_OR_IMM(s1, iptr->sx.val.i, d);
1006                         else {
1007                                 ICONST(REG_ITMP3, iptr->sx.val.i);
1008                                 M_OR(s1, REG_ITMP3, d);
1009                         }
1010                         emit_store_dst(jd, iptr, d);
1011                         break;
1012
1013                 case ICMD_LORCONST:   /* ..., value  ==> ..., value | constant        */
1014                                       /* sx.val.l = constant                          */
1015
1016                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1017                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1018                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
1019                                 M_OR_IMM(s1, iptr->sx.val.l, d);
1020                         else {
1021                                 LCONST(REG_ITMP3, iptr->sx.val.l);
1022                                 M_OR(s1, REG_ITMP3, d);
1023                         }
1024                         emit_store_dst(jd, iptr, d);
1025                         break;
1026
1027
1028                 case ICMD_IXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
1029                 case ICMD_LXOR:
1030
1031                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1032                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1033                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1034                         M_XOR(s1, s2, d);
1035                         emit_store_dst(jd, iptr, d);
1036                         break;
1037
1038                 case ICMD_IXORCONST:  /* ..., value  ==> ..., value ^ constant        */
1039                                       /* sx.val.i = constant                          */
1040
1041                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1042                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1043                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
1044                                 M_XOR_IMM(s1, iptr->sx.val.i, d);
1045                         else {
1046                                 ICONST(REG_ITMP3, iptr->sx.val.i);
1047                                 M_XOR(s1, REG_ITMP3, d);
1048                         }
1049                         emit_store_dst(jd, iptr, d);
1050                         break;
1051
1052                 case ICMD_LXORCONST:  /* ..., value  ==> ..., value ^ constant        */
1053                                       /* sx.val.l = constant                          */
1054
1055                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1056                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1057                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
1058                                 M_XOR_IMM(s1, iptr->sx.val.l, d);
1059                         else {
1060                                 LCONST(REG_ITMP3, iptr->sx.val.l);
1061                                 M_XOR(s1, REG_ITMP3, d);
1062                         }
1063                         emit_store_dst(jd, iptr, d);
1064                         break;
1065
1066                 case ICMD_LCMP:       /* ..., val1, val2  ==> ..., val1 cmp val2      */
1067
1068                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1069                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1070                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
1071                         /* XXX implement me!!! */
1072                         vm_abort("codegen: implement ICMD_LCMP!");
1073                         emit_store_dst(jd, iptr, d);
1074                         break;
1075                         break;
1076
1077
1078                 /* floating operations ************************************************/
1079
1080                 case ICMD_FNEG:       /* ..., value  ==> ..., - value                 */
1081
1082                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1083                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1084                         M_FMOVN(s1, d);
1085                         emit_store_dst(jd, iptr, d);
1086                         break;
1087
1088                 case ICMD_DNEG:       /* ..., value  ==> ..., - value                 */
1089
1090                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1091                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1092                         M_FMOVN(s1, d);
1093                         emit_store_dst(jd, iptr, d);
1094                         break;
1095
1096                 case ICMD_FADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
1097
1098                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1099                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1100                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1101                         M_FADD(s1, s2, d);
1102                         emit_store_dst(jd, iptr, d);
1103                         break;
1104
1105                 case ICMD_DADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
1106
1107                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1108                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1109                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1110                         M_DADD(s1, s2, d);
1111                         emit_store_dst(jd, iptr, d);
1112                         break;
1113
1114                 case ICMD_FSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
1115
1116                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1117                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1118                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1119                         M_FSUB(s1, s2, d);
1120                         emit_store_dst(jd, iptr, d);
1121                         break;
1122
1123                 case ICMD_DSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
1124
1125                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1126                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1127                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1128                         M_DSUB(s1, s2, d);
1129                         emit_store_dst(jd, iptr, d);
1130                         break;
1131
1132                 case ICMD_FMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1133
1134                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1135                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1136                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1137                         M_FMUL(s1, s2, d);
1138                         emit_store_dst(jd, iptr, d);
1139                         break;
1140
1141                 case ICMD_DMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1142
1143                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1144                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1145                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1146                         M_DMUL(s1, s2, d);
1147                         emit_store_dst(jd, iptr, d);
1148                         break;
1149
1150                 case ICMD_FDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1151
1152                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1153                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1154                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1155                         M_FDIV(s1, s2, d);
1156                         emit_store_dst(jd, iptr, d);
1157                         break;
1158
1159                 case ICMD_DDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1160
1161                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1162                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1163                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1164                         M_DDIV(s1, s2, d);
1165                         emit_store_dst(jd, iptr, d);
1166                         break;
1167
1168                 case ICMD_F2I:       /* ..., value  ==> ..., (int) value              */
1169                 case ICMD_D2I:
1170
1171                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1172                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1173                         M_CLR(d);
1174                         disp = dseg_add_float(cd, 0.0);
1175                         M_FLD(REG_FTMP2, REG_PV, disp);
1176                         M_FCMPU(s1, REG_FTMP2);
1177                         M_BNAN(4);
1178                         disp = dseg_add_unique_s4(cd, 0);
1179                         M_CVTDL_C(s1, REG_FTMP1);
1180                         M_LDA(REG_ITMP1, REG_PV, disp);
1181                         M_STFIWX(REG_FTMP1, 0, REG_ITMP1);
1182                         M_ILD(d, REG_PV, disp);
1183                         emit_store_dst(jd, iptr, d);
1184                         break;
1185
1186                 case ICMD_F2D:       /* ..., value  ==> ..., (double) value           */
1187
1188                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1189                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1190                         M_FLTMOVE(s1, d);
1191                         emit_store_dst(jd, iptr, d);
1192                         break;
1193
1194                 case ICMD_D2F:       /* ..., value  ==> ..., (double) value           */
1195
1196                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1197                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1198                         M_CVTDF(s1, d);
1199                         emit_store_dst(jd, iptr, d);
1200                         break;
1201
1202                 case ICMD_FCMPL:      /* ..., val1, val2  ==> ..., val1 fcmpg val2    */
1203                 case ICMD_DCMPL:      /* == => 0, < => 1, > => -1                     */
1204
1205
1206                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1207                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1208                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1209                         M_FCMPU(s2, s1);
1210                         M_IADD_IMM(REG_ZERO, -1, d);
1211                         M_BNAN(4);
1212                         M_BGT(3);
1213                         M_IADD_IMM(REG_ZERO, 0, d);
1214                         M_BGE(1);
1215                         M_IADD_IMM(REG_ZERO, 1, d);
1216                         emit_store_dst(jd, iptr, d);
1217                         break;
1218
1219                 case ICMD_FCMPG:      /* ..., val1, val2  ==> ..., val1 fcmpl val2    */
1220                 case ICMD_DCMPG:      /* == => 0, < => 1, > => -1                     */
1221
1222                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1223                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1224                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1225                         M_FCMPU(s1, s2);
1226                         M_IADD_IMM(REG_ZERO, 1, d);
1227                         M_BNAN(4);
1228                         M_BGT(3);
1229                         M_IADD_IMM(REG_ZERO, 0, d);
1230                         M_BGE(1);
1231                         M_IADD_IMM(REG_ZERO, -1, d);
1232                         emit_store_dst(jd, iptr, d);
1233                         break;
1234
1235                 case ICMD_IF_FCMPEQ:    /* ..., value, value ==> ...                  */
1236                 case ICMD_IF_DCMPEQ:
1237
1238                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1239                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1240                         M_FCMPU(s1, s2);
1241                         M_BNAN(1);
1242                         emit_beq(cd, iptr->dst.block);
1243                         break;
1244
1245                 case ICMD_IF_FCMPNE:    /* ..., value, value ==> ...                  */
1246                 case ICMD_IF_DCMPNE:
1247
1248                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1249                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1250                         M_FCMPU(s1, s2);
1251                         emit_bnan(cd, iptr->dst.block);
1252                         emit_bne(cd, iptr->dst.block);
1253                         break;
1254
1255
1256                 case ICMD_IF_FCMPL_LT:  /* ..., value, value ==> ...                  */
1257                 case ICMD_IF_DCMPL_LT:
1258
1259                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1260                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1261                         M_FCMPU(s1, s2);
1262                         emit_bnan(cd, iptr->dst.block);
1263                         emit_blt(cd, iptr->dst.block);
1264                         break;
1265
1266                 case ICMD_IF_FCMPL_GT:  /* ..., value, value ==> ...                  */
1267                 case ICMD_IF_DCMPL_GT:
1268
1269                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1270                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1271                         M_FCMPU(s1, s2);
1272                         M_BNAN(1);
1273                         emit_bgt(cd, iptr->dst.block);
1274                         break;
1275
1276                 case ICMD_IF_FCMPL_LE:  /* ..., value, value ==> ...                  */
1277                 case ICMD_IF_DCMPL_LE:
1278
1279                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1280                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1281                         M_FCMPU(s1, s2);
1282                         emit_bnan(cd, iptr->dst.block);
1283                         emit_ble(cd, iptr->dst.block);
1284                         break;
1285
1286                 case ICMD_IF_FCMPL_GE:  /* ..., value, value ==> ...                  */
1287                 case ICMD_IF_DCMPL_GE:
1288
1289                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1290                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1291                         M_FCMPU(s1, s2);
1292                         M_BNAN(1);
1293                         emit_bge(cd, iptr->dst.block);
1294                         break;
1295
1296                 case ICMD_IF_FCMPG_LT:  /* ..., value, value ==> ...                  */
1297                 case ICMD_IF_DCMPG_LT:
1298
1299                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1300                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1301                         M_FCMPU(s1, s2);
1302                         M_BNAN(1);
1303                         emit_blt(cd, iptr->dst.block);
1304                         break;
1305
1306                 case ICMD_IF_FCMPG_GT:  /* ..., value, value ==> ...                  */
1307                 case ICMD_IF_DCMPG_GT:
1308
1309                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1310                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1311                         M_FCMPU(s1, s2);
1312                         emit_bnan(cd, iptr->dst.block);
1313                         emit_bgt(cd, iptr->dst.block);
1314                         break;
1315
1316                 case ICMD_IF_FCMPG_LE:  /* ..., value, value ==> ...                  */
1317                 case ICMD_IF_DCMPG_LE:
1318
1319                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1320                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1321                         M_FCMPU(s1, s2);
1322                         M_BNAN(1);
1323                         emit_ble(cd, iptr->dst.block);
1324                         break;
1325
1326                 case ICMD_IF_FCMPG_GE:  /* ..., value, value ==> ...                  */
1327                 case ICMD_IF_DCMPG_GE:
1328
1329                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1330                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1331                         M_FCMPU(s1, s2);
1332                         emit_bnan(cd, iptr->dst.block);
1333                         emit_bge(cd, iptr->dst.block);
1334                         break;
1335
1336
1337                 /* memory operations **************************************************/
1338
1339                 case ICMD_ARRAYLENGTH: /* ..., arrayref  ==> ..., length              */
1340
1341                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1342                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1343                         emit_nullpointer_check(cd, iptr, s1);
1344                         M_ILD(d, s1, OFFSET(java_arrayheader, size));
1345                         emit_store_dst(jd, iptr, d);
1346                         break;
1347
1348                 case ICMD_BALOAD:     /* ..., arrayref, index  ==> ..., value         */
1349
1350                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1351                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1352                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1353                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1354                         M_IADD_IMM(s2, OFFSET(java_bytearray, data[0]), REG_ITMP2);
1355                         /* implicit null-pointer check */
1356                         M_LBZX(d, s1, REG_ITMP2);
1357                         M_BSEXT(d, d);
1358                         emit_store_dst(jd, iptr, d);
1359                         break;
1360
1361                 case ICMD_CALOAD:     /* ..., arrayref, index  ==> ..., value         */
1362
1363                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1364                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1365                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1366                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1367                         M_SLL_IMM(s2, 1, REG_ITMP2);
1368                         M_IADD_IMM(REG_ITMP2, OFFSET(java_chararray, data[0]), REG_ITMP2);
1369                         /* implicit null-pointer check */
1370                         M_LHZX(d, s1, REG_ITMP2);
1371                         emit_store_dst(jd, iptr, d);
1372                         break;
1373
1374                 case ICMD_SALOAD:     /* ..., arrayref, index  ==> ..., value         */
1375
1376                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1377                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1378                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1379                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1380                         M_SLL_IMM(s2, 1, REG_ITMP2);
1381                         M_IADD_IMM(REG_ITMP2, OFFSET(java_shortarray, data[0]), REG_ITMP2);
1382                         /* implicit null-pointer check */
1383                         M_LHAX(d, s1, REG_ITMP2);
1384                         emit_store_dst(jd, iptr, d);
1385                         break;
1386
1387                 case ICMD_IALOAD:     /* ..., arrayref, index  ==> ..., value         */
1388
1389                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1390                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1391                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1392                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1393                         M_SLL_IMM(s2, 2, REG_ITMP2);
1394                         M_IADD_IMM(REG_ITMP2, OFFSET(java_intarray, data[0]), REG_ITMP2);
1395                         /* implicit null-pointer check */
1396                         M_LWAX(d, s1, REG_ITMP2);
1397                         emit_store_dst(jd, iptr, d);
1398                         break;
1399
1400                 case ICMD_LALOAD:     /* ..., arrayref, index  ==> ..., value         */
1401
1402                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1403                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1404                         d = codegen_reg_of_dst(jd, iptr, PACK_REGS(REG_ITMP2, REG_ITMP1));
1405                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1406                         M_SLL_IMM(s2, 3, REG_ITMP2);
1407                         M_IADD(s1, REG_ITMP2, REG_ITMP2);
1408                         /* implicit null-pointer check */
1409                         M_LLD_INTERN(d, REG_ITMP2, OFFSET(java_longarray, data[0]));
1410                         emit_store_dst(jd, iptr, d);
1411                         break;
1412
1413                 case ICMD_FALOAD:     /* ..., arrayref, index  ==> ..., value         */
1414
1415                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1416                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1417                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1418                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1419                         M_SLL_IMM(s2, 2, REG_ITMP2);
1420                         M_IADD_IMM(REG_ITMP2, OFFSET(java_floatarray, data[0]), REG_ITMP2);
1421                         /* implicit null-pointer check */
1422                         M_LFSX(d, s1, REG_ITMP2);
1423                         emit_store_dst(jd, iptr, d);
1424                         break;
1425
1426                 case ICMD_DALOAD:     /* ..., arrayref, index  ==> ..., value         */
1427
1428                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1429                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1430                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1431                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1432                         M_SLL_IMM(s2, 3, REG_ITMP2);
1433                         M_IADD_IMM(REG_ITMP2, OFFSET(java_doublearray, data[0]), REG_ITMP2);
1434                         /* implicit null-pointer check */
1435                         M_LFDX(d, s1, REG_ITMP2);
1436                         emit_store_dst(jd, iptr, d);
1437                         break;
1438
1439                 case ICMD_AALOAD:     /* ..., arrayref, index  ==> ..., value         */
1440
1441                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1442                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1443                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1444                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1445                         M_SLL_IMM(s2, 3, REG_ITMP2);
1446                         M_IADD_IMM(REG_ITMP2, OFFSET(java_objectarray, data[0]), REG_ITMP2);
1447                         /* implicit null-pointer check */
1448                         M_ALDX(d, s1, REG_ITMP2);
1449                         emit_store_dst(jd, iptr, d);
1450                         break;
1451
1452
1453                 case ICMD_BASTORE:    /* ..., arrayref, index, value  ==> ...         */
1454
1455                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1456                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1457                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1458                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1459                         M_IADD_IMM(s2, OFFSET(java_bytearray, data[0]), REG_ITMP2);
1460                         /* implicit null-pointer check */
1461                         M_STBX(s3, s1, REG_ITMP2);
1462                         break;
1463
1464                 case ICMD_CASTORE:    /* ..., arrayref, index, value  ==> ...         */
1465
1466                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1467                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1468                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1469                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1470                         M_SLL_IMM(s2, 1, REG_ITMP2);
1471                         M_IADD_IMM(REG_ITMP2, OFFSET(java_chararray, data[0]), REG_ITMP2);
1472                         /* implicit null-pointer check */
1473                         M_STHX(s3, s1, REG_ITMP2);
1474                         break;
1475
1476                 case ICMD_SASTORE:    /* ..., arrayref, index, value  ==> ...         */
1477
1478                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1479                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1480                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1481                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1482                         M_SLL_IMM(s2, 1, REG_ITMP2);
1483                         M_IADD_IMM(REG_ITMP2, OFFSET(java_shortarray, data[0]), REG_ITMP2);
1484                         M_STHX(s3, s1, REG_ITMP2);
1485                         break;
1486
1487                 case ICMD_IASTORE:    /* ..., arrayref, index, value  ==> ...         */
1488
1489                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1490                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1491                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1492                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1493                         M_SLL_IMM(s2, 2, REG_ITMP2);
1494                         M_IADD_IMM(REG_ITMP2, OFFSET(java_intarray, data[0]), REG_ITMP2);
1495                         /* implicit null-pointer check */
1496                         M_STWX(s3, s1, REG_ITMP2);
1497                         break;
1498
1499                 case ICMD_LASTORE:    /* ..., arrayref, index, value  ==> ...         */
1500
1501                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1502                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1503                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1504                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1505                         M_SLL_IMM(s2, 3, REG_ITMP2);
1506                         M_IADD_IMM(REG_ITMP2, OFFSET(java_longarray, data[0]), REG_ITMP2);
1507                         /* implicit null-pointer check */
1508                         M_LSTX(s3, s1, REG_ITMP2);
1509                         break;
1510
1511                 case ICMD_FASTORE:    /* ..., arrayref, index, value  ==> ...         */
1512
1513                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1514                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1515                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1516                         s3 = emit_load_s3(jd, iptr, REG_FTMP3);
1517                         M_SLL_IMM(s2, 2, REG_ITMP2);
1518                         M_IADD_IMM(REG_ITMP2, OFFSET(java_floatarray, data[0]), REG_ITMP2);
1519                         /* implicit null-pointer check */
1520                         M_STFSX(s3, s1, REG_ITMP2);
1521                         break;
1522
1523                 case ICMD_DASTORE:    /* ..., arrayref, index, value  ==> ...         */
1524
1525                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1526                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1527                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1528                         s3 = emit_load_s3(jd, iptr, REG_FTMP3);
1529                         M_SLL_IMM(s2, 3, REG_ITMP2);
1530                         M_IADD_IMM(REG_ITMP2, OFFSET(java_doublearray, data[0]), REG_ITMP2);
1531                         /* implicit null-pointer check */
1532                         M_STFDX(s3, s1, REG_ITMP2);
1533                         break;
1534
1535                 case ICMD_AASTORE:    /* ..., arrayref, index, value  ==> ...         */
1536
1537                         s1 = emit_load_s1(jd, iptr, REG_A0);
1538                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1539                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1540                         s3 = emit_load_s3(jd, iptr, REG_A1);
1541
1542                         disp = dseg_add_functionptr(cd, BUILTIN_canstore);
1543                         M_ALD(REG_ITMP3, REG_PV, disp);
1544                         M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
1545                         M_MTCTR(REG_ITMP3);
1546
1547                         M_INTMOVE(s1, REG_A0);
1548                         M_INTMOVE(s3, REG_A1);
1549
1550                         M_JSR;
1551                         emit_exception_check(cd, iptr);
1552
1553                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1554                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1555                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1556                         M_SLL_IMM(s2, 3, REG_ITMP2);
1557                         M_IADD_IMM(REG_ITMP2, OFFSET(java_objectarray, data[0]), REG_ITMP2);
1558                         /* implicit null-pointer check */
1559                         M_ASTX(s3, s1, REG_ITMP2);
1560                         break;
1561
1562
1563                 case ICMD_GETSTATIC:  /* ...  ==> ..., value                          */
1564
1565                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1566                                 uf = iptr->sx.s23.s3.uf;
1567
1568                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1569                                 disp = dseg_add_unique_address(cd, NULL);
1570
1571                                 codegen_addpatchref(cd, PATCHER_get_putstatic,
1572                                                                         iptr->sx.s23.s3.uf, disp);
1573
1574                         } else {
1575                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1576
1577                                 fieldtype = fi->type;
1578                                 disp = dseg_add_address(cd, &(fi->value));
1579
1580                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1581                                         codegen_addpatchref(cd, PATCHER_clinit, fi->class, disp);
1582                                 }
1583                         }
1584
1585                         M_ALD(REG_ITMP1, REG_PV, disp);
1586                         switch (fieldtype) {
1587                         case TYPE_INT:
1588                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1589                                 M_ILD_INTERN(d, REG_ITMP1, 0);
1590                                 break;
1591                         case TYPE_LNG:
1592                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1593                                 M_LLD(d, REG_ITMP1, 0);
1594                                 break;
1595                         case TYPE_ADR:
1596                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1597                                 M_ALD_INTERN(d, REG_ITMP1, 0);
1598                                 break;
1599                         case TYPE_FLT:
1600                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1601                                 M_FLD_INTERN(d, REG_ITMP1, 0);
1602                                 break;
1603                         case TYPE_DBL:
1604                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1605                                 M_DLD_INTERN(d, REG_ITMP1, 0);
1606                                 break;
1607                         }
1608                         emit_store_dst(jd, iptr, d);
1609                         break;
1610
1611                 case ICMD_PUTSTATIC:  /* ..., value  ==> ...                          */
1612
1613
1614                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1615                                 uf = iptr->sx.s23.s3.uf;
1616
1617                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1618                                 disp = dseg_add_unique_address(cd, NULL);
1619
1620                                 codegen_addpatchref(cd, PATCHER_get_putstatic,
1621                                                                         iptr->sx.s23.s3.uf, disp);
1622                         } else {
1623                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1624
1625                                 fieldtype = fi->type;
1626                                 disp = dseg_add_address(cd, &(fi->value));
1627
1628                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1629                                         codegen_addpatchref(cd, PATCHER_clinit, fi->class, disp);
1630                                 }
1631                         }
1632
1633                         M_ALD(REG_ITMP1, REG_PV, disp);
1634                         switch (fieldtype) {
1635                         case TYPE_INT:
1636                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1637                                 M_IST_INTERN(s1, REG_ITMP1, 0);
1638                                 break;
1639                         case TYPE_LNG:
1640                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1641                                 M_LST_INTERN(s1, REG_ITMP1, 0);
1642                                 break;
1643                         case TYPE_ADR:
1644                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1645                                 M_AST_INTERN(s1, REG_ITMP1, 0);
1646                                 break;
1647                         case TYPE_FLT:
1648                                 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1649                                 M_FST_INTERN(s1, REG_ITMP1, 0);
1650                                 break;
1651                         case TYPE_DBL:
1652                                 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1653                                 M_DST_INTERN(s1, REG_ITMP1, 0);
1654                                 break;
1655                         }
1656                         break;
1657
1658
1659                 case ICMD_GETFIELD:   /* ...  ==> ..., value                          */
1660
1661                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1662
1663                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1664                                 uf = iptr->sx.s23.s3.uf;
1665                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1666                                 disp = 0;
1667
1668                                 codegen_addpatchref(cd, PATCHER_get_putfield, uf, 0);
1669                         } else {
1670                                 fi = iptr->sx.s23.s3.fmiref->p.field;
1671                                 fieldtype = fi->type;
1672                                 disp = fi->offset;
1673                         }
1674
1675                         /* implicit null-pointer check */
1676                         switch (fieldtype) {
1677                         case TYPE_INT:
1678                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1679                                 M_ILD(d, s1, disp);
1680                                 break;
1681                         case TYPE_LNG:
1682                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1683                                 M_LLD(d, s1, disp);
1684                                 break;
1685                         case TYPE_ADR:
1686                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1687                                 M_ALD(d, s1, disp);
1688                                 break;
1689                         case TYPE_FLT:
1690                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1691                                 M_FLD(d, s1, disp);
1692                                 break;
1693                         case TYPE_DBL:
1694                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1695                                 M_DLD(d, s1, disp);
1696                                 break;
1697                         }
1698                         emit_store_dst(jd, iptr, d);
1699                         break;
1700
1701                 case ICMD_PUTFIELD:   /* ..., value  ==> ...                          */
1702
1703                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1704
1705                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1706                                 uf        = iptr->sx.s23.s3.uf;
1707                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1708                                 disp      = 0;
1709                         }
1710                         else {
1711                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1712                                 fieldtype = fi->type;
1713                                 disp      = fi->offset;
1714                         }
1715
1716                         if (IS_INT_LNG_TYPE(fieldtype)) {
1717                                 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1718                         }
1719                         else
1720                                 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1721
1722                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1723                                 codegen_addpatchref(cd, PATCHER_get_putfield, uf, 0);
1724                         }
1725
1726
1727                         /* implicit null-pointer check */
1728                         switch (fieldtype) {
1729                         case TYPE_INT:
1730                                 M_IST(s2, s1, disp);
1731                                 break;
1732                         case TYPE_LNG:
1733                                 M_LST(s2, s1, disp);
1734                                 break;
1735                         case TYPE_ADR:
1736                                 M_AST(s2, s1, disp);
1737                                 break;
1738                         case TYPE_FLT:
1739                                 M_FST(s2, s1, disp);
1740                                 break;
1741                         case TYPE_DBL:
1742                                 M_DST(s2, s1, disp);
1743                                 break;
1744                         }
1745                         break;
1746
1747
1748                 /* branch operations **************************************************/
1749
1750                 case ICMD_ATHROW:       /* ..., objectref ==> ... (, objectref)       */
1751
1752                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1753                         M_LNGMOVE(s1, REG_ITMP1_XPTR);
1754
1755 #ifdef ENABLE_VERIFIER
1756                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1757                                 codegen_addpatchref(cd, PATCHER_athrow_areturn,
1758                                                                         iptr->sx.s23.s2.uc, 0);
1759                         }
1760 #endif /* ENABLE_VERIFIER */
1761
1762                         disp = dseg_add_functionptr(cd, asm_handle_exception);
1763                         M_ALD(REG_ITMP2, REG_PV, disp);
1764                         M_MTCTR(REG_ITMP2);
1765
1766                         if (jd->isleafmethod) M_MFLR(REG_ITMP3);         /* save LR        */
1767                         M_BL(0);                                        /* get current PC */
1768                         M_MFLR(REG_ITMP2_XPC);
1769                         if (jd->isleafmethod) M_MTLR(REG_ITMP3);         /* restore LR     */
1770                         M_RTS;                                          /* jump to CTR    */
1771
1772                         ALIGNCODENOP;
1773                         break;
1774
1775                 case ICMD_GOTO:         /* ... ==> ...                                */
1776                 case ICMD_RET:          /* ... ==> ...                                */
1777
1778                         emit_br(cd, iptr->dst.block);
1779                         ALIGNCODENOP;
1780                         break;
1781
1782                 case ICMD_JSR:          /* ... ==> ...                                */
1783
1784                         emit_br(cd, iptr->sx.s23.s3.jsrtarget.block);
1785                         ALIGNCODENOP;
1786                         break;
1787
1788                 case ICMD_IFNULL:       /* ..., value ==> ...                         */
1789
1790                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1791                         M_TST(s1);
1792                         emit_beq(cd, iptr->dst.block);
1793                         break;
1794
1795                 case ICMD_IFNONNULL:    /* ..., value ==> ...                         */
1796
1797                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1798                         M_TST(s1);
1799                         emit_bne(cd, iptr->dst.block);
1800                         break;
1801
1802                 case ICMD_IFLT:
1803                 case ICMD_IFLE:
1804                 case ICMD_IFNE:
1805                 case ICMD_IFGT:
1806                 case ICMD_IFGE:
1807                 case ICMD_IFEQ:         /* ..., value ==> ...                         */
1808
1809                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1810                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767))
1811                                 M_CMPI(s1, iptr->sx.val.i);
1812                         else {
1813                                 ICONST(REG_ITMP2, iptr->sx.val.i);
1814                                 M_CMP(s1, REG_ITMP2);
1815                         }
1816                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFEQ, BRANCH_OPT_NONE);
1817                         break;
1818
1819                 case ICMD_IF_LEQ:       /* ..., value ==> ...                         */
1820                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1821                         LCONST(REG_ITMP2, iptr->sx.val.l);
1822                         M_CMP(s1, REG_ITMP2);
1823                         emit_beq(cd, iptr->dst.block);
1824                         break;
1825                 case ICMD_IF_LLT:       /* ..., value ==> ...                         */
1826                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1827                         LCONST(REG_ITMP2, iptr->sx.val.l);
1828                         M_CMP(s1, REG_ITMP2);
1829                         emit_blt(cd, iptr->dst.block);
1830                         break;
1831                 case ICMD_IF_LLE:       /* ..., value ==> ...                         */
1832                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1833                         LCONST(REG_ITMP2, iptr->sx.val.l);
1834                         M_CMP(s1, REG_ITMP2);
1835                         emit_ble(cd, iptr->dst.block);
1836                         break;
1837
1838                 case ICMD_IF_LNE:       /* ..., value ==> ... */
1839                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1840                         LCONST(REG_ITMP2, iptr->sx.val.l);
1841                         M_CMP(s1, REG_ITMP2);
1842                         emit_bne(cd, iptr->dst.block);
1843                         break;
1844                 case ICMD_IF_LGE:       /* ..., value ==> ... */
1845                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1846                         LCONST(REG_ITMP2, iptr->sx.val.l);
1847                         M_CMP(s1, REG_ITMP2);
1848                         emit_bge(cd, iptr->dst.block);
1849                         break;
1850                 case ICMD_IF_LGT:       /* ..., value ==> ...                         */
1851                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1852                         LCONST(REG_ITMP2, iptr->sx.val.l);
1853                         M_CMP(s1, REG_ITMP2);
1854                         emit_bgt(cd, iptr->dst.block);
1855                         break;
1856                 case ICMD_IF_ICMPEQ:    /* ..., value, value ==> ...                  */
1857                 case ICMD_IF_ACMPEQ:    /* op1 = target JavaVM pc                     */
1858                 case ICMD_IF_LCMPEQ:
1859
1860                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1861                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1862                         M_CMP(s1, s2);
1863                         emit_beq(cd, iptr->dst.block);
1864                         break;
1865
1866                 case ICMD_IF_ICMPNE:    /* ..., value, value ==> ...                  */
1867                 case ICMD_IF_ACMPNE:    /* op1 = target JavaVM pc                     */
1868                 case ICMD_IF_LCMPNE:
1869
1870                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1871                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1872                         M_CMP(s1, s2);
1873                         emit_bne(cd, iptr->dst.block);
1874                         break;
1875
1876
1877                 case ICMD_IF_ICMPLT:    /* ..., value, value ==> ...                  */
1878                 case ICMD_IF_LCMPLT:
1879
1880                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1881                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1882                         M_CMP(s1, s2);
1883                         emit_blt(cd, iptr->dst.block);
1884                         break;
1885
1886                 case ICMD_IF_ICMPGT:    /* ..., value, value ==> ...                  */
1887                 case ICMD_IF_LCMPGT:
1888
1889                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1890                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1891                         M_CMP(s1, s2);
1892                         emit_bgt(cd, iptr->dst.block);
1893                         break;
1894
1895                 case ICMD_IF_ICMPLE:    /* ..., value, value ==> ...                  */
1896                 case ICMD_IF_LCMPLE:
1897
1898                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1899                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1900                         M_CMP(s1, s2);
1901                         emit_ble(cd, iptr->dst.block);
1902                         break;
1903
1904                 case ICMD_IF_ICMPGE:    /* ..., value, value ==> ...                  */
1905                 case ICMD_IF_LCMPGE:
1906
1907                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1908                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1909                         M_CMP(s1, s2);
1910                         emit_bge(cd, iptr->dst.block);
1911                         break;
1912
1913
1914                 case ICMD_LRETURN:      /* ..., retvalue ==> ...                      */
1915                 case ICMD_IRETURN:      /* ..., retvalue ==> ...                      */
1916
1917                         REPLACEMENT_POINT_RETURN(cd, iptr);
1918                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
1919                         M_LNGMOVE(s1, REG_RESULT);
1920                         goto nowperformreturn;
1921
1922                 case ICMD_ARETURN:      /* ..., retvalue ==> ...                      */
1923
1924                         REPLACEMENT_POINT_RETURN(cd, iptr);
1925                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
1926                         M_LNGMOVE(s1, REG_RESULT);
1927
1928 #ifdef ENABLE_VERIFIER
1929                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1930                                 codegen_addpatchref(cd, PATCHER_athrow_areturn,
1931                                                                         iptr->sx.s23.s2.uc, 0);
1932                         }
1933 #endif /* ENABLE_VERIFIER */
1934
1935                         goto nowperformreturn;
1936
1937                 case ICMD_FRETURN:      /* ..., retvalue ==> ...                      */
1938                 case ICMD_DRETURN:
1939
1940                         REPLACEMENT_POINT_RETURN(cd, iptr);
1941                         s1 = emit_load_s1(jd, iptr, REG_FRESULT);
1942                         M_FLTMOVE(s1, REG_FRESULT);
1943                         goto nowperformreturn;
1944
1945                 case ICMD_RETURN:      /* ...  ==> ...                                */
1946
1947                         REPLACEMENT_POINT_RETURN(cd, iptr);
1948
1949 nowperformreturn:
1950                         {
1951                         s4 i, p;
1952
1953                         p = cd->stackframesize;
1954
1955                         /* call trace function */
1956
1957 #if !defined(NDEBUG)
1958                         if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
1959                                 emit_verbosecall_exit(jd);
1960                         }
1961 #endif
1962
1963 #if defined(ENABLE_THREADS)
1964                         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
1965                                 disp = dseg_add_functionptr(cd, LOCK_monitor_exit);
1966                                 M_ALD(REG_ITMP3, REG_PV, disp);
1967                                 M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
1968                                 M_MTCTR(REG_ITMP3);
1969
1970                                 /* we need to save the proper return value */
1971
1972                                 switch (iptr->opc) {
1973                                 case ICMD_LRETURN:
1974                                 case ICMD_IRETURN:
1975                                 case ICMD_ARETURN:
1976                                         /* fall through */
1977                                         M_LST(REG_RESULT , REG_SP, rd->memuse * 8 + 8);
1978                                         break;
1979                                 case ICMD_FRETURN:
1980                                         M_FST(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
1981                                         break;
1982                                 case ICMD_DRETURN:
1983                                         M_DST(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
1984                                         break;
1985                                 }
1986
1987                                 M_ALD(REG_A0, REG_SP, rd->memuse * 8);
1988                                 M_JSR;
1989
1990                                 /* and now restore the proper return value */
1991
1992                                 switch (iptr->opc) {
1993                                 case ICMD_LRETURN:
1994                                 case ICMD_IRETURN:
1995                                 case ICMD_ARETURN:
1996                                         /* fall through */
1997                                         M_LLD(REG_RESULT , REG_SP, rd->memuse * 8 + 8);
1998                                         break;
1999                                 case ICMD_FRETURN:
2000                                         M_FLD(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
2001                                         break;
2002                                 case ICMD_DRETURN:
2003                                         M_DLD(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
2004                                         break;
2005                                 }
2006                         }
2007 #endif
2008
2009                         /* restore return address                                         */
2010
2011                         if (!jd->isleafmethod) {
2012                                 /* ATTENTION: Don't use REG_ZERO (r0) here, as M_ALD
2013                                    may have a displacement overflow. */
2014
2015                                 M_ALD(REG_ITMP1, REG_SP, p * 8 + LA_LR_OFFSET);
2016                                 M_MTLR(REG_ITMP1);
2017                         }
2018
2019                         /* restore saved registers                                        */
2020
2021                         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
2022                                 p--; M_LLD(rd->savintregs[i], REG_SP, p * 8);
2023                         }
2024                         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
2025                                 p--; M_DLD(rd->savfltregs[i], REG_SP, p * 8);
2026                         }
2027
2028                         /* deallocate stack                                               */
2029
2030                         if (cd->stackframesize)
2031                                 M_LDA(REG_SP, REG_SP, cd->stackframesize * 8);
2032
2033                         M_RET;
2034                         ALIGNCODENOP;
2035                         }
2036                         break;
2037
2038
2039                 case ICMD_TABLESWITCH:  /* ..., index ==> ...                         */
2040                         {
2041                         s4 i, l;
2042                         branch_target_t *table;
2043
2044                         table = iptr->dst.table;
2045
2046                         l = iptr->sx.s23.s2.tablelow;
2047                         i = iptr->sx.s23.s3.tablehigh;
2048
2049                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2050                         if (l == 0) {
2051                                 M_INTMOVE(s1, REG_ITMP1);
2052                         } else if (l <= 32768) {
2053                                 M_LDA(REG_ITMP1, s1, -l);
2054                         } else {
2055                                 ICONST(REG_ITMP2, l);
2056                                 M_SUB(s1, REG_ITMP2, REG_ITMP1);
2057                         }
2058
2059                         /* number of targets */
2060                         i = i - l + 1;
2061
2062                         /* range check */
2063
2064                         M_CMPUI(REG_ITMP1, i - 1);
2065                         emit_bgt(cd, table[0].block);
2066
2067                         /* build jump table top down and use address of lowest entry */
2068
2069                         table += i;
2070
2071                         while (--i >= 0) {
2072                                 dseg_add_target(cd, table->block);
2073                                 --table;
2074                         }
2075
2076                         /* length of dataseg after last dseg_add_unique_target is used by load */
2077
2078                         M_SLL_IMM(REG_ITMP1, 3, REG_ITMP1);
2079                         M_IADD(REG_ITMP1, REG_PV, REG_ITMP2);
2080                         M_ALD(REG_ITMP2, REG_ITMP2, -(cd->dseglen));
2081                         M_MTCTR(REG_ITMP2);
2082                         M_RTS;
2083                         ALIGNCODENOP;
2084                         }
2085                         break;
2086
2087
2088                 case ICMD_LOOKUPSWITCH: /* ..., key ==> ...                           */
2089                         {
2090                         s4 i, val;
2091                         lookup_target_t *lookup;
2092
2093                         lookup = iptr->dst.lookup;
2094
2095                         i = iptr->sx.s23.s2.lookupcount;
2096
2097                         MCODECHECK((i<<2)+8);
2098                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2099                         while (--i >= 0) {
2100                                 val = lookup->value;
2101                                 if ((val >= -32768) && (val <= 32767)) {
2102                                         M_CMPI(s1, val);
2103
2104                                 } else {
2105                                         a = dseg_add_s4(cd, val);
2106                                         M_ILD(REG_ITMP2, REG_PV, a);
2107                                         M_CMP(s1, REG_ITMP2);
2108                                 }
2109                                 emit_beq(cd, lookup->target.block);
2110                                 ++lookup;
2111                         }
2112
2113                         emit_br(cd, iptr->sx.s23.s3.lookupdefault.block);
2114
2115                         ALIGNCODENOP;
2116                         break;
2117                         }
2118
2119
2120                 case ICMD_BUILTIN:      /* ..., [arg1, [arg2 ...]] ==> ...            */
2121
2122                         bte = iptr->sx.s23.s3.bte;
2123                         md = bte->md;
2124                         goto gen_method;
2125
2126                 case ICMD_INVOKESTATIC: /* ..., [arg1, [arg2 ...]] ==> ...            */
2127                 case ICMD_INVOKESPECIAL:/* ..., objectref, [arg1, [arg2 ...]] ==> ... */
2128                 case ICMD_INVOKEVIRTUAL:/* op1 = arg count, val.a = method pointer    */
2129                 case ICMD_INVOKEINTERFACE:
2130
2131                         REPLACEMENT_POINT_INVOKE(cd, iptr);
2132
2133                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2134                                 lm = NULL;
2135                                 um = iptr->sx.s23.s3.um;
2136                                 md = um->methodref->parseddesc.md;
2137                         }
2138                         else {
2139                                 lm = iptr->sx.s23.s3.fmiref->p.method;
2140                                 um = NULL;
2141                                 md = lm->parseddesc;
2142                         }
2143
2144 gen_method:
2145                         s3 = md->paramcount;
2146
2147                         MCODECHECK((s3 << 1) + 64);
2148
2149                         /* copy arguments to registers or stack location */
2150
2151                         for (s3 = s3 - 1; s3 >= 0; s3--) {
2152                                 var = VAR(iptr->sx.s23.s2.args[s3]);
2153                                 d   = md->params[s3].regoff;
2154
2155                                 if (var->flags & PREALLOC)
2156                                         continue;
2157
2158                                 if (IS_INT_LNG_TYPE(var->type)) {
2159                                         if (!md->params[s3].inmemory) {
2160                                                 s1 = emit_load(jd, iptr, var, d);
2161                                                 M_LNGMOVE(s1, d);
2162                                         }
2163                                         else {
2164                                                 s1 = emit_load(jd, iptr, var, REG_ITMP1);
2165                                                 M_LST(s1, REG_SP, d * 8);
2166                                         }
2167                                 }
2168                                 else {
2169                                         if (!md->params[s3].inmemory) {
2170                                                 s1 = emit_load(jd, iptr, var, d);
2171                                                 M_FLTMOVE(s1, d);
2172                                         }
2173                                         else {
2174                                                 s1 = emit_load(jd, iptr, var, REG_FTMP1);
2175                                                 M_DST(s1, REG_SP, d * 8);
2176                                         }
2177                                 }
2178                         }
2179
2180                         switch (iptr->opc) {
2181                         case ICMD_BUILTIN:
2182                                 disp = dseg_add_functionptr(cd, bte->fp);
2183                                 M_ALD(REG_PV, REG_PV, disp);
2184                                 M_ALD(REG_PV, REG_PV, 0);       /* TOC */
2185
2186                                 /* generate the actual call */
2187                                 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2188                                 M_MTCTR(REG_PV);
2189                                 M_JSR;
2190                                 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2191                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2192                                 M_MFLR(REG_ITMP1);
2193                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2194
2195                                 emit_exception_check(cd, iptr);
2196                                 break;
2197
2198
2199                         case ICMD_INVOKESPECIAL:
2200                                 emit_nullpointer_check(cd, iptr, REG_A0);
2201                                 /* fall through */
2202
2203                         case ICMD_INVOKESTATIC:
2204                                 if (lm == NULL) {
2205                                         disp = dseg_add_unique_address(cd, um);
2206
2207                                         codegen_addpatchref(cd, PATCHER_invokestatic_special,
2208                                                                                 um, disp);
2209                                 } else {
2210                                         disp = dseg_add_address(cd, lm->stubroutine);
2211                                 }
2212                                 M_ALD(REG_PV, REG_PV, disp);
2213
2214                                 /* generate the actual call */
2215
2216                                 M_MTCTR(REG_PV);
2217                                 M_JSR;
2218                                 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2219                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2220                                 M_MFLR(REG_ITMP1);
2221                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2222
2223                                 break;
2224                         case ICMD_INVOKEVIRTUAL:
2225                                 if (lm == NULL) {
2226                                         codegen_addpatchref(cd, PATCHER_invokevirtual, um, 0);
2227                                         s1 = 0;
2228                                 } else {
2229                                         s1 = OFFSET(vftbl_t, table[0]) +
2230                                                 sizeof(methodptr) * lm->vftblindex;
2231                                 }
2232
2233                                 /* implicit null-pointer check */
2234                                 M_ALD(REG_METHODPTR, REG_A0, OFFSET(java_objectheader, vftbl));
2235                                 M_ALD(REG_PV, REG_METHODPTR, s1);
2236
2237                                 /* generate the actual call */
2238
2239                                 M_MTCTR(REG_PV);
2240                                 M_JSR;
2241                                 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2242                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2243                                 M_MFLR(REG_ITMP1);
2244                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2245                                 break;
2246
2247                         case ICMD_INVOKEINTERFACE:
2248                                 if (lm == NULL) {
2249                                         codegen_addpatchref(cd, PATCHER_invokeinterface, um, 0);
2250
2251                                         s1 = 0;
2252                                         s2 = 0;
2253
2254                                 } else {
2255                                         s1 = OFFSET(vftbl_t, interfacetable[0]) -
2256                                                 sizeof(methodptr*) * lm->class->index;
2257
2258                                         s2 = sizeof(methodptr) * (lm - lm->class->methods);
2259                                 }
2260
2261                                 /* implicit null-pointer check */
2262                                 M_ALD(REG_METHODPTR, REG_A0, OFFSET(java_objectheader, vftbl));
2263                                 M_ALD(REG_METHODPTR, REG_METHODPTR, s1);
2264                                 M_ALD(REG_PV, REG_METHODPTR, s2);
2265
2266                                 /* generate the actual call */
2267
2268                                 M_MTCTR(REG_PV);
2269                                 M_JSR;
2270                                 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2271                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2272                                 M_MFLR(REG_ITMP1);
2273                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2274
2275                                 break;
2276                         }
2277                         /* store return value */
2278
2279                         d = md->returntype.type;
2280
2281                         if (d != TYPE_VOID) {
2282                                 if (IS_INT_LNG_TYPE(d)) {
2283                                         s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2284                                         M_MOV(REG_RESULT, s1);
2285                                 }
2286                                 else {
2287                                         s1 = codegen_reg_of_dst(jd, iptr, REG_FRESULT);
2288                                         M_FLTMOVE(REG_FRESULT, s1);
2289                                 }
2290                                 emit_store_dst(jd, iptr, s1);
2291                         }
2292                         break;
2293
2294                 case ICMD_CHECKCAST:  /* ..., objectref ==> ..., objectref            */
2295                                       /* val.a: (classinfo*) superclass               */
2296
2297                         /*  superclass is an interface:
2298                          *
2299                          *  OK if ((sub == NULL) ||
2300                          *         (sub->vftbl->interfacetablelength > super->index) &&
2301                          *         (sub->vftbl->interfacetable[-super->index] != NULL));
2302                          *
2303                          *  superclass is a class:
2304                          *
2305                          *  OK if ((sub == NULL) || (0
2306                          *         <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2307                          *         super->vftbl->diffvall));
2308                          */
2309
2310                         if (!(iptr->flags.bits & INS_FLAG_ARRAY)) {
2311                                 /* object type cast-check */
2312
2313                                 classinfo *super;
2314                                 s4         superindex;
2315
2316                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2317                                         super = NULL;
2318                                         superindex = 0;
2319                                 } else {
2320                                         super = iptr->sx.s23.s3.c.cls;
2321                                         superindex = super->index;
2322                                 }
2323
2324 #if defined(ENABLE_THREADS)
2325                                 codegen_threadcritrestart(cd, cd->mcodeptr - cd->mcodebase);
2326 #endif
2327                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2328
2329                                 /* calculate interface checkcast code size */
2330
2331                                 s2 = 9;
2332 #if defined(SOFTEX)
2333                                 s2 += CODEGENDATA_HAS_FLAG_LONGBRANCHES(cd) ? 2 : 0;
2334 #endif
2335                                 if (super == NULL)
2336                                         s2 += (opt_shownops ? 1 : 0);
2337
2338                                 /* calculate class checkcast code size */
2339
2340                                 s3 = 10 + (s1 == REG_ITMP1);
2341 #if defined(SOFTEX)
2342                                 s3 += CODEGENDATA_HAS_FLAG_LONGBRANCHES(cd) ? 1 : 0;
2343 #endif
2344                                 if (super == NULL)
2345                                         s3 += (opt_shownops ? 1 : 0);
2346
2347                                 /* if class is not resolved, check which code to call */
2348
2349                                 if (super == NULL) {
2350                                         M_TST(s1);
2351                                         M_BEQ(3 + (opt_shownops ? 1 : 0) + s2 + 1 + s3);
2352
2353                                         disp = dseg_add_unique_s4(cd, 0);                     /* super->flags */
2354
2355                                         codegen_addpatchref(cd,
2356                                                                                 PATCHER_checkcast_instanceof_flags,
2357                                                                                 iptr->sx.s23.s3.c.ref,
2358                                                                                 disp);
2359
2360                                         M_ILD(REG_ITMP2, REG_PV, disp);
2361                                         M_AND_IMM(REG_ITMP2, ACC_INTERFACE, REG_ITMP2);
2362                                         M_BEQ(s2 + 1);
2363                                 }
2364
2365                                 /* interface checkcast code */
2366
2367                                 if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2368                                         if (super == NULL) {
2369                                                 codegen_addpatchref(cd,
2370                                                                                         PATCHER_checkcast_interface,
2371                                                                                         iptr->sx.s23.s3.c.ref,
2372                                                                                         0);
2373                                         } else {
2374                                                 M_TST(s1);
2375                                                 M_BEQ(s2);
2376                                         }
2377
2378                                         M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2379                                         M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, interfacetablelength));
2380                                         M_LDATST(REG_ITMP3, REG_ITMP3, -superindex);
2381                                         emit_classcast_check(cd, iptr, BRANCH_LE, REG_ITMP3, s1);
2382                                         M_ALD(REG_ITMP3, REG_ITMP2,
2383                                                   OFFSET(vftbl_t, interfacetable[0]) -
2384                                                   superindex * sizeof(methodptr*));
2385                                         M_TST(REG_ITMP3);
2386                                         emit_classcast_check(cd, iptr, BRANCH_EQ, REG_ITMP3, s1);
2387
2388                                         if (!super)
2389                                                 M_BR(s3);
2390                                 }
2391
2392                                 /* class checkcast code */
2393
2394                                 if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2395                                         if (super == NULL) {
2396                                                 disp = dseg_add_unique_address(cd, NULL);
2397                                                 codegen_addpatchref(cd, PATCHER_checkcast_class,
2398                                                                                         iptr->sx.s23.s3.c.ref,
2399                                                                                         disp);
2400                                         } else {
2401                                                 disp = dseg_add_address(cd, super->vftbl);
2402                                                 M_TST(s1);
2403                                                 M_BEQ(s3);
2404                                         }
2405
2406                                         M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2407 #if defined(ENABLE_THREADS)
2408                                         codegen_threadcritstart(cd, cd->mcodeptr - cd->mcodebase);
2409 #endif
2410                                         M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2411                                         M_ALD(REG_ITMP2, REG_PV, disp);
2412                                         if (s1 != REG_ITMP1) {
2413                                                 M_ILD(REG_ITMP1, REG_ITMP2, OFFSET(vftbl_t, baseval));
2414                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2415 #if defined(ENABLE_THREADS)
2416                                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2417 #endif
2418                                                 M_SUB(REG_ITMP3, REG_ITMP1, REG_ITMP3);
2419                                                 M_EXTSW(REG_ITMP3, REG_ITMP3);
2420                                         } else {
2421                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, baseval));
2422                                                 M_SUB(REG_ITMP3, REG_ITMP2, REG_ITMP3);
2423                                                 M_EXTSW(REG_ITMP3, REG_ITMP3);
2424                                                 M_ALD(REG_ITMP2, REG_PV, disp);
2425                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2426 #if defined(ENABLE_THREADS)
2427                                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2428 #endif
2429                                         }
2430                                         M_CMPU(REG_ITMP3, REG_ITMP2);
2431                                         emit_classcast_check(cd, iptr, BRANCH_GT, REG_ITMP3, s1);
2432                                 }
2433                                 d = codegen_reg_of_dst(jd, iptr, s1);
2434
2435                         } else {
2436                                 /* array type cast-check */
2437
2438                                 s1 = emit_load_s1(jd, iptr, REG_A0);
2439                                 M_INTMOVE(s1, REG_A0);
2440
2441
2442                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2443                                         disp = dseg_add_unique_address(cd, NULL);
2444                                         codegen_addpatchref(cd, PATCHER_builtin_arraycheckcast,
2445                                                                                 iptr->sx.s23.s3.c.ref,
2446                                                                                 disp);
2447                                 } else {
2448                                         disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2449                                 }
2450
2451                                 M_ALD(REG_A1, REG_PV, disp);
2452                                 disp = dseg_add_functionptr(cd, BUILTIN_arraycheckcast);
2453                                 M_ALD(REG_ITMP2, REG_PV, disp);
2454                                 M_ALD(REG_ITMP2, REG_ITMP2, 0); /* TOC */
2455                                 M_MTCTR(REG_ITMP2);
2456                                 M_JSR;
2457                                 M_TST(REG_RESULT);
2458                                 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_RESULT, s1);
2459
2460                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2461                                 d = codegen_reg_of_dst(jd, iptr, s1);
2462                         }
2463                         M_INTMOVE(s1, d);
2464                         emit_store_dst(jd, iptr, d);
2465                         break;
2466
2467
2468                 case ICMD_INSTANCEOF: /* ..., objectref ==> ..., intresult            */
2469                                       /* val.a: (classinfo*) superclass               */
2470
2471                         /*  superclass is an interface:
2472                          *
2473                          *  return (sub != NULL) &&
2474                          *         (sub->vftbl->interfacetablelength > super->index) &&
2475                          *         (sub->vftbl->interfacetable[-super->index] != NULL);
2476                          *
2477                          *  superclass is a class:
2478                          *
2479                          *  return ((sub != NULL) && (0
2480                          *          <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2481                          *          super->vftbl->diffvall));
2482                          */
2483
2484                         {
2485                         classinfo *super;
2486                         vftbl_t   *supervftbl;
2487                         s4         superindex;
2488
2489                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2490                                 super = NULL;
2491                                 superindex = 0;
2492                                 supervftbl = NULL;
2493                         }
2494                         else {
2495                                 super = iptr->sx.s23.s3.c.cls;
2496                                 superindex = super->index;
2497                                 supervftbl = super->vftbl;
2498                         }
2499
2500 #if defined(ENABLE_THREADS)
2501             codegen_threadcritrestart(cd, cd->mcodeptr - cd->mcodebase);
2502 #endif
2503                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2504                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
2505                         if (s1 == d) {
2506                                 M_MOV(s1, REG_ITMP1);
2507                                 s1 = REG_ITMP1;
2508                         }
2509
2510                         /* calculate interface instanceof code size */
2511
2512                         s2 = 8;
2513                         if (!super)
2514                                 s2 += (opt_shownops ? 1 : 0);
2515
2516                         /* calculate class instanceof code size */
2517
2518                         s3 = 11;
2519                         if (super == NULL)
2520                                 s3 += (opt_shownops ? 1 : 0);
2521
2522                         M_CLR(d);
2523
2524                         /* if class is not resolved, check which code to call */
2525
2526                         if (super == NULL) {
2527                                 M_TST(s1);
2528                                 M_BEQ(3 + (opt_shownops ? 1 : 0) + s2 + 1 + s3);
2529
2530                                 disp = dseg_add_unique_s4(cd, 0);                     /* super->flags */
2531
2532                                 codegen_addpatchref(cd, PATCHER_checkcast_instanceof_flags,
2533                                                                         iptr->sx.s23.s3.c.ref, disp);
2534
2535                                 M_ILD(REG_ITMP3, REG_PV, disp);
2536                                 M_AND_IMM(REG_ITMP3, ACC_INTERFACE, REG_ITMP3);
2537                                 M_BEQ(s2 + 1);
2538                         }
2539
2540                         /* interface instanceof code */
2541
2542                         if (!super || (super->flags & ACC_INTERFACE)) {
2543                                 if (super) {
2544                                         M_TST(s1);
2545                                         M_BEQ(s2);
2546
2547                                 } else {
2548                                         codegen_addpatchref(cd,
2549                                                                                 PATCHER_instanceof_interface,
2550                                                                                 iptr->sx.s23.s3.c.ref, 0);
2551                                 }
2552
2553                                 M_ALD(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
2554                                 M_ILD(REG_ITMP3, REG_ITMP1, OFFSET(vftbl_t, interfacetablelength));
2555                                 M_LDATST(REG_ITMP3, REG_ITMP3, -superindex);
2556                                 M_BLE(4);
2557                                 M_ALD(REG_ITMP1, REG_ITMP1,
2558                                           OFFSET(vftbl_t, interfacetable[0]) -
2559                                           superindex * sizeof(methodptr*));
2560                                 M_TST(REG_ITMP1);
2561                                 M_BEQ(1);
2562                                 M_IADD_IMM(REG_ZERO, 1, d);
2563
2564                                 if (super == NULL)
2565                                         M_BR(s3);
2566                         }
2567
2568                         /* class instanceof code */
2569
2570                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2571
2572                                 if (super) {
2573                                         disp = dseg_add_address(cd, supervftbl);
2574                                         M_TST(s1);
2575                                         M_BEQ(s3);
2576
2577                                 } else {
2578                                         disp = dseg_add_unique_address(cd, NULL);
2579                                         codegen_addpatchref(cd, PATCHER_instanceof_class,
2580                                                                                 iptr->sx.s23.s3.c.ref,
2581                                                                                 disp);
2582                                 }
2583
2584                                 M_ALD(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
2585                                 M_ALD(REG_ITMP2, REG_PV, disp);
2586 #if defined(ENABLE_THREADS)
2587                                 codegen_threadcritstart(cd, cd->mcodeptr - cd->mcodebase);
2588 #endif
2589                                 M_ILD(REG_ITMP1, REG_ITMP1, OFFSET(vftbl_t, baseval));
2590                                 M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2591                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2592 #if defined(ENABLE_THREADS)
2593                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2594 #endif
2595                                 M_SUB(REG_ITMP1, REG_ITMP3, REG_ITMP1);
2596                                 M_EXTSW(REG_ITMP1, REG_ITMP1);
2597                                 M_CMPU(REG_ITMP1, REG_ITMP2);
2598                                 M_CLR(d);
2599                                 M_BGT(1);
2600                                 M_IADD_IMM(REG_ZERO, 1, d);
2601                         }
2602                         emit_store_dst(jd, iptr, d);
2603                         }
2604                         break;
2605
2606                 case ICMD_MULTIANEWARRAY:/* ..., cnt1, [cnt2, ...] ==> ..., arrayref  */
2607
2608                         /* check for negative sizes and copy sizes to stack if necessary  */
2609
2610                         MCODECHECK((iptr->s1.argcount << 1) + 64);
2611
2612                         for (s1 = iptr->s1.argcount; --s1 >= 0; ) {
2613
2614                                 var = VAR(iptr->sx.s23.s2.args[s1]);
2615
2616                                 /* copy SAVEDVAR sizes to stack */
2617
2618                                 if (!(var->flags & PREALLOC)) {
2619                                         s2 = emit_load(jd, iptr, var, REG_ITMP1);
2620 #if defined(__DARWIN__)
2621                                         M_LST(s2, REG_SP, LA_SIZE + (s1 + INT_ARG_CNT) * 8);
2622 #else
2623                                         M_LST(s2, REG_SP, LA_SIZE + (s1 + 3) * 8);
2624 #endif
2625                                 }
2626                         }
2627
2628                         /* a0 = dimension count */
2629
2630                         ICONST(REG_A0, iptr->s1.argcount);
2631
2632                         /* is patcher function set? */
2633
2634                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2635                                 disp = dseg_add_unique_address(cd, NULL);
2636
2637                                 codegen_addpatchref(cd, PATCHER_builtin_multianewarray,
2638                                                                         iptr->sx.s23.s3.c.ref, disp);
2639                         } else {
2640                                 disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2641                         }
2642
2643                         /* a1 = arraydescriptor */
2644
2645                         M_ALD(REG_A1, REG_PV, disp);
2646
2647                         /* a2 = pointer to dimensions = stack pointer */
2648
2649 #if defined(__DARWIN__)
2650                         M_LDA(REG_A2, REG_SP, LA_SIZE + INT_ARG_CNT * 8);
2651 #else
2652                         M_LDA(REG_A2, REG_SP, LA_SIZE + 3 * 8);
2653 #endif
2654
2655                         disp = dseg_add_functionptr(cd, BUILTIN_multianewarray);
2656                         M_ALD(REG_ITMP3, REG_PV, disp);
2657                         M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
2658                         M_MTCTR(REG_ITMP3);
2659                         M_JSR;
2660
2661                         /* check for exception before result assignment */
2662                         emit_exception_check(cd, iptr);
2663
2664                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2665                         M_INTMOVE(REG_RESULT, d);
2666                         emit_store_dst(jd, iptr, d);
2667                         break;
2668
2669                 default:
2670                         exceptions_throw_internalerror("Unknown ICMD %d during code generation",
2671                                                                                    iptr->opc);
2672                         return false;
2673         } /* switch */
2674
2675         } /* for instruction */
2676
2677         } /* if (bptr -> flags >= BBREACHED) */
2678         } /* for basic block */
2679
2680         dseg_createlinenumbertable(cd);
2681
2682         /* generate stubs */
2683
2684         emit_patcher_stubs(jd);
2685         REPLACEMENT_EMIT_STUBS(jd);
2686
2687         /* everything's ok */
2688
2689         return true;
2690 }
2691
2692
2693 /* codegen_emit_stub_compiler **************************************************
2694
2695    Emits a stub routine which calls the compiler.
2696
2697 *******************************************************************************/
2698
2699 void codegen_emit_stub_compiler(jitdata *jd)
2700 {
2701         methodinfo  *m;
2702         codegendata *cd;
2703
2704         /* get required compiler data */
2705
2706         m  = jd->m;
2707         cd = jd->cd;
2708
2709         /* code for the stub */
2710
2711         M_ALD_INTERN(REG_ITMP1, REG_PV, -2 * SIZEOF_VOID_P);
2712         M_ALD_INTERN(REG_PV, REG_PV, -3 * SIZEOF_VOID_P);
2713         M_MTCTR(REG_PV);
2714         M_RTS;
2715 }
2716
2717
2718 /* codegen_emit_stub_native ****************************************************
2719
2720    Emits a stub routine which calls a native method.
2721
2722 *******************************************************************************/
2723
2724 void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f)
2725 {
2726         methodinfo  *m;
2727         codeinfo    *code;
2728         codegendata *cd;
2729         methoddesc  *md;
2730         s4           nativeparams;
2731         s4           i, j;
2732         s4           t;
2733         s4           s1, s2, disp;
2734         s4           funcdisp;
2735
2736         /* get required compiler data */
2737
2738         m    = jd->m;
2739         code = jd->code;
2740         cd   = jd->cd;
2741
2742         /* set some variables */
2743
2744         md = m->parseddesc;
2745         nativeparams = (m->flags & ACC_STATIC) ? 2 : 1;
2746
2747         /* calculate stackframe size */
2748
2749         cd->stackframesize =
2750                 sizeof(stackframeinfo) / SIZEOF_VOID_P +
2751                 sizeof(localref_table) / SIZEOF_VOID_P +
2752                 4 +                            /* 4 stackframeinfo arguments (darwin)*/
2753                 nmd->paramcount  +
2754                 nmd->memuse;
2755
2756 /*      cd->stackframesize = (cd->stackframesize + 3) & ~3;*/ /* keep stack 16-byte aligned */
2757
2758         /* create method header */
2759
2760         (void) dseg_add_unique_address(cd, code);                      /* CodeinfoPointer */
2761         (void) dseg_add_unique_s4(cd, cd->stackframesize * 8);             /* FrameSize       */
2762         (void) dseg_add_unique_s4(cd, 0);                              /* IsSync          */
2763         (void) dseg_add_unique_s4(cd, 0);                              /* IsLeaf          */
2764         (void) dseg_add_unique_s4(cd, 0);                              /* IntSave         */
2765         (void) dseg_add_unique_s4(cd, 0);                              /* FltSave         */
2766         (void) dseg_addlinenumbertablesize(cd);
2767         (void) dseg_add_unique_s4(cd, 0);                              /* ExTableSize     */
2768
2769         /* generate code */
2770
2771         M_MFLR(REG_ZERO);
2772         M_AST_INTERN(REG_ZERO, REG_SP, LA_LR_OFFSET);
2773         M_STDU(REG_SP, REG_SP, -(cd->stackframesize * 8));
2774
2775 #if !defined(NDEBUG)
2776         if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
2777                 emit_verbosecall_enter(jd);
2778         }
2779 #endif
2780         /* get function address (this must happen before the stackframeinfo) */
2781
2782         funcdisp = dseg_add_functionptr(cd, f);
2783
2784 #if !defined(WITH_STATIC_CLASSPATH)
2785         if (f == NULL) {
2786                 codegen_addpatchref(cd, PATCHER_resolve_native, m, funcdisp);
2787         }
2788 #endif
2789
2790         /* save integer and float argument registers */
2791
2792         j = 0;
2793
2794         for (i = 0; i < md->paramcount; i++) {
2795                 t = md->paramtypes[i].type;
2796
2797                 if (IS_INT_LNG_TYPE(t)) {
2798                         if (!md->params[i].inmemory) {
2799                                 s1 = md->params[i].regoff;
2800                                 M_LST(s1, REG_SP, LA_SIZE + PA_SIZE + 4*8 + j * 8);
2801                                 j++;
2802                         }
2803                 }
2804         }
2805
2806         for (i = 0; i < md->paramcount; i++) {
2807                 if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
2808                         if (!md->params[i].inmemory) {
2809                                 s1 = md->params[i].regoff;
2810                                 M_DST(s1, REG_SP, LA_SIZE + PA_SIZE + 4*8 + j * 8);
2811                                 j++;
2812                         }
2813                 }
2814         }
2815
2816         /* create native stack info */
2817
2818         M_AADD_IMM(REG_SP, cd->stackframesize * 8, REG_A0);
2819         M_MOV(REG_PV, REG_A1);
2820         M_AADD_IMM(REG_SP, cd->stackframesize * 8, REG_A2);
2821         M_ALD(REG_A3, REG_SP, cd->stackframesize * 8 + LA_LR_OFFSET);
2822         disp = dseg_add_functionptr(cd, codegen_start_native_call);
2823
2824         M_ALD(REG_ITMP1, REG_PV, disp);
2825         M_ALD(REG_ITMP1, REG_ITMP1, 0);         /* TOC */
2826         M_MTCTR(REG_ITMP1);
2827         M_JSR;
2828
2829         /* restore integer and float argument registers */
2830
2831         j = 0;
2832
2833         for (i = 0; i < md->paramcount; i++) {
2834                 t = md->paramtypes[i].type;
2835
2836                 if (IS_INT_LNG_TYPE(t)) {
2837                         if (!md->params[i].inmemory) {
2838                                 s1 = md->params[i].regoff;
2839                                 M_LLD(s1, REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + j * 8);
2840                                 j++;
2841                         }
2842                 }
2843         }
2844
2845         for (i = 0; i < md->paramcount; i++) {
2846                 if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
2847                         if (!md->params[i].inmemory) {
2848                                 s1 = md->params[i].regoff;
2849                                 M_DLD(s1, REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + j * 8);
2850                                 j++;
2851                         }
2852                 }
2853         }
2854
2855         /* copy or spill arguments to new locations */
2856
2857         for (i = md->paramcount - 1, j = i + nativeparams; i >= 0; i--, j--) {
2858                 t = md->paramtypes[i].type;
2859
2860                 if (IS_INT_LNG_TYPE(t)) {
2861                         if (!md->params[i].inmemory) {
2862                                 s1 = md->params[i].regoff;
2863                                 s2 = nmd->params[j].regoff;
2864
2865                                 if (!nmd->params[j].inmemory)
2866                                         M_INTMOVE(s1, s2);
2867                                 else
2868                                         M_LST(s1, REG_SP, s2 * 8);
2869                         }
2870                         else {
2871                                 s1 = md->params[i].regoff + cd->stackframesize;
2872                                 s2 = nmd->params[j].regoff;
2873
2874                                 M_LLD(REG_ITMP1, REG_SP, s1 * 8);
2875                                 M_LST(REG_ITMP1, REG_SP, s2 * 8);
2876                         }
2877                 }
2878                 else {
2879                         /* We only copy spilled float arguments, as the float
2880                            argument registers keep unchanged. */
2881
2882                         if (md->params[i].inmemory) {
2883                                 s1 = md->params[i].regoff + cd->stackframesize;
2884                                 s2 = nmd->params[j].regoff;
2885
2886                                 M_DLD(REG_FTMP1, REG_SP, s1 * 8);
2887
2888                                 if (IS_2_WORD_TYPE(t))
2889                                         M_DST(REG_FTMP1, REG_SP, s2 * 8);
2890                                 else
2891                                         M_FST(REG_FTMP1, REG_SP, s2 * 8 + 4);
2892                         }
2893                 }
2894         }
2895
2896         /* put class into second argument register */
2897
2898         if (m->flags & ACC_STATIC) {
2899                 disp = dseg_add_unique_address(cd, m->class);
2900                 M_ALD(REG_A1, REG_PV, disp);
2901         }
2902
2903         /* put env into first argument register */
2904
2905         disp = dseg_add_unique_address(cd, _Jv_env);
2906         M_ALD(REG_A0, REG_PV, disp);
2907
2908         /* generate the actual native call */
2909         /* native functions have a different TOC for sure */
2910
2911         M_AST(REG_TOC, REG_SP, 40);     /* save old TOC */
2912         M_ALD(REG_ITMP3, REG_PV, funcdisp);
2913         M_ALD(REG_TOC, REG_ITMP3, 8);   /* load TOC from func. descriptor */
2914         M_ALD(REG_ITMP3, REG_ITMP3, 0);
2915         M_MTCTR(REG_ITMP3);
2916         M_JSR;
2917         M_ALD(REG_TOC, REG_SP, 40);     /* restore TOC */
2918
2919         /* save return value */
2920
2921         if (md->returntype.type != TYPE_VOID) {
2922                 if (IS_INT_LNG_TYPE(md->returntype.type)) {
2923                         M_LST(REG_RESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
2924                 }
2925                 else {
2926                         M_DST(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
2927                 }
2928         }
2929
2930         /* print call trace */
2931 #if ! defined(NDEBGUU)
2932         if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
2933                 emit_verbosecall_exit(jd);
2934         }
2935 #endif
2936         /* remove native stackframe info */
2937
2938         M_AADD_IMM(REG_SP, cd->stackframesize * 8, REG_A0);
2939         disp = dseg_add_functionptr(cd, codegen_finish_native_call);
2940         M_ALD(REG_ITMP1, REG_PV, disp);
2941         M_ALD(REG_ITMP1, REG_ITMP1, 0); /* XXX what about TOC? */
2942         M_MTCTR(REG_ITMP1);
2943         M_JSR;
2944         M_MOV(REG_RESULT, REG_ITMP1_XPTR);
2945
2946         /* restore return value */
2947
2948         if (md->returntype.type != TYPE_VOID) {
2949                 if (IS_INT_LNG_TYPE(md->returntype.type)) {
2950                         M_LLD(REG_RESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
2951                 }
2952                 else {
2953 /*                      if (IS_2_WORD_TYPE(md->returntype.type)) */
2954                                 M_DLD(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
2955 /*                      else
2956                                 M_FLD(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8); F XXX
2957                                 */
2958                 }
2959         }
2960
2961         M_ALD(REG_ITMP2_XPC, REG_SP, cd->stackframesize * 8 + LA_LR_OFFSET);
2962         M_MTLR(REG_ITMP2_XPC);
2963         M_LDA(REG_SP, REG_SP, cd->stackframesize * 8); /* remove stackframe           */
2964
2965         /* check for exception */
2966
2967         M_TST(REG_ITMP1_XPTR);
2968         M_BNE(1);                           /* if no exception then return        */
2969
2970         M_RET;
2971
2972         /* handle exception */
2973
2974         M_LADD_IMM(REG_ITMP2_XPC, -4, REG_ITMP2_XPC);  /* exception address       */
2975
2976         disp = dseg_add_functionptr(cd, asm_handle_nat_exception);
2977         M_ALD(REG_ITMP3, REG_PV, disp);
2978         M_MTCTR(REG_ITMP3);
2979         M_RTS;
2980
2981         /* generate patcher stub call code */
2982
2983         emit_patcher_stubs(jd);
2984 }
2985
2986
2987
2988
2989 /*
2990  * These are local overrides for various environment variables in Emacs.
2991  * Please do not remove this and leave it at the end of the file, where
2992  * Emacs will automagically detect them.
2993  * ---------------------------------------------------------------------
2994  * Local variables:
2995  * mode: c
2996  * indent-tabs-mode: t
2997  * c-basic-offset: 4
2998  * tab-width: 4
2999  * End:
3000  * vim:noexpandtab:sw=4:ts=4:
3001  */