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 8268 2007-08-07 13:24:43Z twisti $
  26
  27 */
  28
  29
  30 #include "config.h"
  31
  32 #include <assert.h>
  33 #include <stdint.h>
  34 #include <stdio.h>
  35 #include <signal.h>
  36
  37 #include "vm/types.h"
  38
  39 #include "md-abi.h"
  40
  41 #include "vm/jit/powerpc64/arch.h"
  42 #include "vm/jit/powerpc64/codegen.h"
  43
  44 #include "mm/memory.h"
  45
  46 #include "native/native.h"
  47
  48 #include "threads/lock-common.h"
  49
  50 #include "vm/builtin.h"
  51 #include "vm/exceptions.h"
  52 #include "vm/global.h"
  53 #include "vm/stringlocal.h"
  54 #include "vm/vm.h"
  55
  56 #include "vm/jit/abi.h"
  57 #include "vm/jit/abi-asm.h"
  58 #include "vm/jit/md.h"
  59 #include "vm/jit/asmpart.h"
  60 #include "vm/jit/codegen-common.h"
  61 #include "vm/jit/dseg.h"
  62 #include "vm/jit/emit-common.h"
  63 #include "vm/jit/jit.h"
  64 #include "vm/jit/parse.h"
  65 #include "vm/jit/patcher.h"
  66 #include "vm/jit/reg.h"
  67 #include "vm/jit/replace.h"
  68 #include "vm/jit/stacktrace.h"
  69
  70 #include "vmcore/loader.h"
  71 #include "vmcore/options.h"
  72
  73 #if defined(ENABLE_LSRA)
  74 # include "vm/jit/allocator/lsra.h"
  75 #endif
  76
  77
  78 /* codegen_emit ****************************************************************
  79
  80    Generates machine code.
  81
  82 *******************************************************************************/
  83
  84 bool codegen_emit(jitdata *jd)
  85 {
  86         methodinfo         *m;
  87         codeinfo           *code;
  88         codegendata        *cd;
  89         registerdata       *rd;
  90         s4                  len, s1, s2, s3, d, disp;
  91         ptrint              a;
  92         varinfo            *var;
  93         basicblock         *bptr;
  94         instruction        *iptr;
  95         exception_entry    *ex;
  96         u2                  currentline;
  97         methodinfo         *lm;             /* local methodinfo for ICMD_INVOKE*  */
  98         unresolved_method  *um;
  99         builtintable_entry *bte;
 100         methoddesc         *md;
 101         s4                  fieldtype;
 102         s4                  varindex;
 103         unresolved_field   *uf;
 104         fieldinfo          *fi;
 105
 106         /* get required compiler data */
 107
 108         m    = jd->m;
 109         code = jd->code;
 110         cd   = jd->cd;
 111         rd   = jd->rd;
 112
 113         /* prevent compiler warnings */
 114
 115         d   = 0;
 116         lm  = NULL;
 117         um  = NULL;
 118         bte = NULL;
 119         uf  = NULL;
 120
 121         {
 122         s4 i, p, t, l;
 123         s4 savedregs_num;
 124
 125         savedregs_num = 0;
 126
 127         /* space to save used callee saved registers */
 128
 129         savedregs_num += (INT_SAV_CNT - rd->savintreguse);
 130         savedregs_num += (FLT_SAV_CNT - rd->savfltreguse);
 131
 132         cd->stackframesize = rd->memuse + savedregs_num;
 133
 134 #if defined(ENABLE_THREADS)
 135         /* space to save argument of monitor_enter and Return Values to survive */
 136     /* monitor_exit. The stack position for the argument can not be shared  */
 137         /* with place to save the return register on PPC64, since both values     */
 138         /* reside in R3 */
 139         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
 140                 /* reserve 2 slots for long/double return values for monitorexit */
 141                 cd->stackframesize += 2;
 142         }
 143
 144 #endif
 145
 146         /* create method header */
 147
 148         /* align stack to 16-bytes */
 149
 150 /* FIXME */
 151 /*      if (!m->isleafmethod || opt_verbosecall) */
 152 /*              stackframesize = (stackframesize + 3) & ~3;
 153 */
 154 /*      else if (m->isleafmethod && (stackframesize == LA_WORD_SIZE)) */
 155 /*              stackframesize = 0; */
 156
 157         (void) dseg_add_unique_address(cd, code);                      /* CodeinfoPointer */
 158         (void) dseg_add_unique_s4(cd, cd->stackframesize * 8);             /* FrameSize       */
 159
 160 #if defined(ENABLE_THREADS)
 161         /* IsSync contains the offset relative to the stack pointer for the
 162            argument of monitor_exit used in the exception handler. Since the
 163            offset could be zero and give a wrong meaning of the flag it is
 164            offset by one.
 165         */
 166
 167         if (checksync && (m->flags & ACC_SYNCHRONIZED))
 168                 (void) dseg_add_unique_s4(cd, (rd->memuse + 1) * 8);       /* IsSync          */
 169         else
 170 #endif
 171                 (void) dseg_add_unique_s4(cd, 0);                          /* IsSync          */
 172
 173         (void) dseg_add_unique_s4(cd, jd->isleafmethod);                /* IsLeaf          */
 174         (void) dseg_add_unique_s4(cd, INT_SAV_CNT - rd->savintreguse); /* IntSave         */
 175         (void) dseg_add_unique_s4(cd, FLT_SAV_CNT - rd->savfltreguse); /* FltSave         */
 176
 177         dseg_addlinenumbertablesize(cd);
 178
 179         (void) dseg_add_unique_s4(cd, jd->exceptiontablelength);       /* ExTableSize     */
 180
 181         /* create exception table */
 182
 183         for (ex = jd->exceptiontable; ex != NULL; ex = ex->down) {
 184                 dseg_add_target(cd, ex->start);
 185                 dseg_add_target(cd, ex->end);
 186                 dseg_add_target(cd, ex->handler);
 187                 (void) dseg_add_unique_address(cd, ex->catchtype.any);
 188         }
 189
 190         /* create stack frame (if necessary) */
 191
 192         if (!jd->isleafmethod) {
 193                 M_MFLR(REG_ZERO);
 194                 M_AST(REG_ZERO, REG_SP, LA_LR_OFFSET);
 195         }
 196
 197         if (cd->stackframesize)
 198                 M_STDU(REG_SP, REG_SP, -cd->stackframesize * 8);
 199
 200         /* save return address and used callee saved registers */
 201
 202         p = cd->stackframesize;
 203         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
 204                 p--; M_LST(rd->savintregs[i], REG_SP, p * 8);
 205         }
 206         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
 207                 p --; M_DST(rd->savfltregs[i], REG_SP, p * 8);
 208         }
 209
 210         /* take arguments out of register or stack frame */
 211
 212         md = m->parseddesc;
 213
 214         for (p = 0, l = 0; p < md->paramcount; p++) {
 215                 t = md->paramtypes[p].type;
 216                 varindex = jd->local_map[l*5 + t];
 217                 l++;
 218                 if (IS_2_WORD_TYPE(t))    /* increment local counter for 2 word types */
 219                         l++;
 220                 if (varindex == UNUSED)
 221                         continue;
 222
 223                 var = VAR(varindex);
 224                 s1  = md->params[p].regoff;
 225
 226                 if (IS_INT_LNG_TYPE(t)) {
 227                         if (!md->params[p].inmemory) {
 228                                 if (!IS_INMEMORY(var->flags))
 229                                         M_INTMOVE(s1, var->vv.regoff);
 230                                 else
 231                                         M_LST(s1, REG_SP, var->vv.regoff);
 232                         }
 233                         else {
 234                                 if (!IS_INMEMORY(var->flags))
 235                                         M_LLD(var->vv.regoff, REG_SP, cd->stackframesize * 8 + s1);
 236                                 else
 237                                         var->vv.regoff = cd->stackframesize * 8 + s1;
 238                         }
 239                 }
 240                 else {
 241                         if (!md->params[p].inmemory) {
 242                                 if (!IS_INMEMORY(var->flags))
 243                                         M_FLTMOVE(s1, var->vv.regoff);
 244                                 else
 245                                         M_DST(s1, REG_SP, var->vv.regoff);
 246                         }
 247                         else {
 248                                 if (!(var->flags & INMEMORY)) {
 249                                         if (IS_2_WORD_TYPE(t))
 250                                                 M_DLD(var->vv.regoff, REG_SP, cd->stackframesize * 8 + s1);
 251                                         else
 252                                                 M_DLD(var->vv.regoff, REG_SP, cd->stackframesize * 8 + s1);
 253                                 }
 254                                 else
 255                                         var->vv.regoff = cd->stackframesize * 8 + s1;
 256                         }
 257                 }
 258         }
 259
 260         /* save monitorenter argument */
 261
 262 #if defined(ENABLE_THREADS)
 263
 264         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
 265
 266                 /* stackoffset for argument used for LOCK_monitor_exit */
 267                 s1 = rd->memuse;
 268
 269 #if !defined (NDEBUG)
 270                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 271                         M_AADD_IMM(REG_SP, -((LA_SIZE_IN_POINTERS + PA_SIZE_IN_POINTERS + ARG_CNT) * 8), REG_SP);
 272
 273                         for (p = 0; p < INT_ARG_CNT; p++)
 274                                 M_LST(abi_registers_integer_argument[p], REG_SP, LA_SIZE + PA_SIZE + p * 8);
 275
 276                         for (p = 0; p < FLT_ARG_CNT; p++)
 277                                 M_DST(abi_registers_float_argument[p], REG_SP, LA_SIZE + PA_SIZE + (INT_ARG_CNT + p) * 8);
 278
 279                         /* used for LOCK_monitor_exit, adopt size because we created another stackframe */
 280                         s1 += (LA_SIZE_IN_POINTERS + PA_SIZE_IN_POINTERS + ARG_CNT);
 281                 }
 282 #endif
 283
 284                 p = dseg_add_functionptr(cd, LOCK_monitor_enter);
 285                 M_ALD(REG_ITMP3, REG_PV, p);
 286                 M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
 287                 M_MTCTR(REG_ITMP3);
 288
 289                 /* get or test the lock object */
 290
 291                 if (m->flags & ACC_STATIC) {
 292                         p = dseg_add_address(cd, &m->class->object.header);
 293                         M_ALD(REG_A0, REG_PV, p);
 294                 }
 295                 else {
 296                         M_TST(REG_A0);
 297                         M_BNE(1);
 298                         M_ALD_INTERN(REG_ZERO, REG_ZERO, EXCEPTION_HARDWARE_NULLPOINTER);
 299                 }
 300
 301                 M_AST(REG_A0, REG_SP, s1 * 8);                      /* rd->memuse * 8 */
 302                 M_JSR;
 303
 304 #if !defined(NDEBUG)
 305                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 306                         for (p = 0; p < INT_ARG_CNT; p++)
 307                                 M_LLD(abi_registers_integer_argument[p], REG_SP, LA_SIZE + PA_SIZE + p * 8);
 308
 309                         for (p = 0; p < FLT_ARG_CNT; p++)
 310                                 M_DLD(abi_registers_float_argument[p], REG_SP, LA_SIZE + PA_SIZE + (INT_ARG_CNT + p) * 8);
 311
 312                         M_AADD_IMM(REG_SP, (LA_SIZE_IN_POINTERS + PA_SIZE_IN_POINTERS + ARG_CNT) * 8, REG_SP);
 313                 }
 314 #endif
 315         }
 316 #endif
 317
 318         /* call trace function */
 319 #if !defined (NDEBUG)
 320         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
 321                 emit_verbosecall_enter(jd);
 322 #endif
 323
 324         }
 325
 326         /* end of header generation */
 327
 328         /* create replacement points */
 329
 330         REPLACEMENT_POINTS_INIT(cd, jd);
 331
 332         /* walk through all basic blocks */
 333
 334         for (bptr = jd->basicblocks; bptr != NULL; bptr = bptr->next) {
 335
 336                 bptr->mpc = (s4) (cd->mcodeptr - cd->mcodebase);
 337
 338                 if (bptr->flags >= BBREACHED) {
 339
 340                 /* branch resolving */
 341                 codegen_resolve_branchrefs(cd, bptr);
 342
 343                 /* handle replacement points */
 344
 345                 REPLACEMENT_POINT_BLOCK_START(cd, bptr);
 346
 347                 /* copy interface registers to their destination */
 348
 349                 len = bptr->indepth;
 350                 MCODECHECK(128+len);
 351
 352 #if defined(ENABLE_LSRA)
 353                 if (opt_lsra) {
 354                         while (len) {
 355                                 len--;
 356                                 var = VAR(bptr->invars[len]);
 357                                 if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 358                                         /* d = reg_of_var(m, var, REG_ITMP1); */
 359                                         if (!(var->flags & INMEMORY))
 360                                                 d = var->vv.regoff;
 361                                         else
 362                                                 d = REG_ITMP1;
 363                                         M_INTMOVE(REG_ITMP1, d);
 364                                         emit_store(jd, NULL, var, d);
 365                                 }
 366                         }
 367                 } else {
 368 #endif
 369                 while (len) {
 370                         len--;
 371                         var = VAR(bptr->invars[len]);
 372                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 373                                 d = codegen_reg_of_var(0, var, REG_ITMP1);
 374                                 M_INTMOVE(REG_ITMP1, d);
 375                                 emit_store(jd, NULL, var, d);
 376                         }
 377                         else {
 378                                 assert((var->flags & INOUT));
 379                         }
 380                 }
 381
 382 #if defined(ENABLE_LSRA)
 383                 }
 384 #endif
 385                 /* walk through all instructions */
 386
 387                 len = bptr->icount;
 388                 currentline = 0;
 389
 390                 for (iptr = bptr->iinstr; len > 0; len--, iptr++) {
 391                         if (iptr->line != currentline) {
 392                                 dseg_addlinenumber(cd, iptr->line);
 393                                 currentline = iptr->line;
 394                         }
 395
 396                         MCODECHECK(128);   /* an instruction usually needs < 64 words      */
 397
 398                 switch (iptr->opc) {
 399                 case ICMD_NOP:        /* ...  ==> ...                                 */
 400                 case ICMD_POP:        /* ..., value  ==> ...                          */
 401                 case ICMD_POP2:       /* ..., value, value  ==> ...                   */
 402                         break;
 403
 404                 case ICMD_INLINE_START:
 405
 406                         REPLACEMENT_POINT_INLINE_START(cd, iptr);
 407                         break;
 408
 409                 case ICMD_INLINE_BODY:
 410
 411                         REPLACEMENT_POINT_INLINE_BODY(cd, iptr);
 412                         dseg_addlinenumber_inline_start(cd, iptr);
 413                         dseg_addlinenumber(cd, iptr->line);
 414                         break;
 415
 416                 case ICMD_INLINE_END:
 417
 418                         dseg_addlinenumber_inline_end(cd, iptr);
 419                         dseg_addlinenumber(cd, iptr->line);
 420                         break;
 421
 422                 case ICMD_CHECKNULL:  /* ..., objectref  ==> ..., objectref           */
 423
 424                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 425                         M_TST(s1);
 426                         M_BEQ(0);
 427                         emit_nullpointer_check(cd, iptr, s1);
 428                         break;
 429
 430                 /* constant operations ************************************************/
 431
 432                 case ICMD_ICONST:     /* ...  ==> ..., constant                       */
 433
 434                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 435                         ICONST(d, iptr->sx.val.i);
 436                         emit_store_dst(jd, iptr, d);
 437                         break;
 438
 439                 case ICMD_LCONST:     /* ...  ==> ..., constant                       */
 440
 441                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 442                         LCONST(d, iptr->sx.val.l);
 443                         emit_store_dst(jd, iptr, d);
 444                         break;
 445
 446                 case ICMD_FCONST:     /* ...  ==> ..., constant                       */
 447
 448                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 449                         a = dseg_add_float(cd, iptr->sx.val.f);
 450                         M_FLD(d, REG_PV, a);
 451                         emit_store_dst(jd, iptr, d);
 452                         break;
 453
 454                 case ICMD_DCONST:     /* ...  ==> ..., constant                       */
 455
 456                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 457                         a = dseg_add_double(cd, iptr->sx.val.d);
 458                         M_DLD(d, REG_PV, a);
 459                         emit_store_dst(jd, iptr, d);
 460                         break;
 461
 462                 case ICMD_ACONST:     /* ...  ==> ..., constant                       */
 463
 464                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 465
 466                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
 467                                 disp = dseg_add_unique_address(cd, iptr->sx.val.c.ref);
 468                                 codegen_addpatchref(cd, PATCHER_aconst,
 469                                                                         iptr->sx.val.c.ref,
 470                                                                     disp);
 471                         } else  {
 472                                 disp = dseg_add_address(cd, iptr->sx.val.anyptr);
 473                         }
 474                         M_ALD(d, REG_PV, disp);
 475                         emit_store_dst(jd, iptr, d);
 476                         break;
 477
 478
 479                 /* load/store/copy/move operations ************************************/
 480
 481                 case ICMD_ILOAD:      /* ...  ==> ..., content of local variable      */
 482                 case ICMD_ALOAD:      /* s1.localindex = local variable               */
 483                 case ICMD_LLOAD:
 484                 case ICMD_FLOAD:
 485                 case ICMD_DLOAD:
 486                 case ICMD_ISTORE:     /* ..., value  ==> ...                          */
 487                 case ICMD_LSTORE:
 488                 case ICMD_FSTORE:
 489                 case ICMD_DSTORE:
 490                 case ICMD_COPY:
 491                 case ICMD_MOVE:
 492
 493                         emit_copy(jd, iptr);
 494                         break;
 495
 496                 case ICMD_ASTORE:
 497                         if (!(iptr->flags.bits & INS_FLAG_RETADDR))
 498                                 emit_copy(jd, iptr);
 499                         break;
 500
 501
 502                 /* integer operations *************************************************/
 503
 504                 case ICMD_INEG:       /* ..., value  ==> ..., - value                 */
 505                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 506                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 507                         M_NEG(s1, d);
 508                         M_EXTSW(d, d);
 509                         emit_store_dst(jd, iptr, d);
 510                         break;
 511
 512                 case ICMD_LNEG:
 513                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 514                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 515                         M_NEG(s1, d);
 516                         emit_store_dst(jd, iptr, d);
 517                         break;
 518
 519
 520                 case ICMD_I2L:        /* ..., value  ==> ..., value                   */
 521
 522                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 523                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 524                         M_INTMOVE(s1, d);
 525                         emit_store_dst(jd, iptr, d);
 526                         break;
 527
 528                 case ICMD_L2I:        /* ..., value  ==> ..., value                   */
 529
 530                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 531                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 532                         M_ISEXT(s1, d);
 533                         emit_store_dst(jd, iptr, d);
 534                         break;
 535
 536                 case ICMD_INT2BYTE:   /* ..., value  ==> ..., value                   */
 537
 538                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 539                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 540                         M_BSEXT(s1, d);
 541                         emit_store_dst(jd, iptr, d);
 542                         break;
 543
 544                 case ICMD_INT2CHAR:   /* ..., value  ==> ..., value                   */
 545
 546                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 547                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 548                         M_CZEXT(s1, d);
 549                         emit_store_dst(jd, iptr, d);
 550                         break;
 551
 552                 case ICMD_INT2SHORT:  /* ..., value  ==> ..., value                   */
 553
 554                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 555                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 556                         M_SSEXT(s1, d);
 557                         emit_store_dst(jd, iptr, d);
 558                         break;
 559
 560
 561                 case ICMD_IADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 562
 563                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 564                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 565                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 566                         M_IADD(s1, s2, d);
 567                         M_EXTSW(d,d);
 568                         emit_store_dst(jd, iptr, d);
 569                         break;
 570
 571                 case ICMD_IINC:
 572                 case ICMD_IADDCONST:
 573
 574                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 575                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 576                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767)) {
 577                                 M_IADD_IMM(s1, iptr->sx.val.i, d);
 578                         } else {
 579                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 580                                 M_IADD(s1, REG_ITMP2, d);
 581                         }
 582                         M_EXTSW(d,d);
 583                         emit_store_dst(jd, iptr, d);
 584                         break;
 585
 586                 case ICMD_LADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 587
 588                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 589                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 590                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 591                         M_LADD(s1, s2, d);
 592                         emit_store_dst(jd, iptr, d);
 593                         break;
 594
 595                 case ICMD_LADDCONST:  /* ..., value  ==> ..., value + constant        */
 596                                       /* sx.val.l = constant                          */
 597
 598                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 599                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 600                         /* XXX check me */
 601                         if ((iptr->sx.val.l >= -32768) && (iptr->sx.val.l <= 32767)) {
 602                                 M_LADD_IMM(s1, iptr->sx.val.l, d);
 603                         } else {
 604                                 LCONST(REG_ITMP2, iptr->sx.val.l);
 605                                 M_LADD(s1, REG_ITMP2, d);
 606                         }
 607                         emit_store_dst(jd, iptr, d);
 608                         break;
 609
 610                 case ICMD_ISUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 611
 612                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 613                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 614                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 615                         M_SUB(s1, s2, d);
 616                         M_EXTSW(d, d);
 617                         emit_store_dst(jd, iptr, d);
 618                         break;
 619
 620                 case ICMD_ISUBCONST:  /* ..., value  ==> ..., value + constant        */
 621                                       /* sx.val.i = constant                          */
 622
 623                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 624                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 625                         if ((iptr->sx.val.i >= -32767) && (iptr->sx.val.i <= 32768)) {
 626                                 M_IADD_IMM(s1, -iptr->sx.val.i, d);
 627                         } else {
 628                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 629                                 M_SUB(s1, REG_ITMP2, d);
 630                         }
 631                         M_EXTSW(d, d);
 632                         emit_store_dst(jd, iptr, d);
 633                         break;
 634
 635                 case ICMD_LSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 636
 637                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 638                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 639                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 640                         M_SUB(s1, s2, d);
 641                         emit_store_dst(jd, iptr, d);
 642                         break;
 643
 644                 case ICMD_LSUBCONST:  /* ..., value  ==> ..., value - constant        */
 645                                       /* sx.val.l = constant                          */
 646
 647                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 648                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 649                         /* XXX check me */
 650                         if ((iptr->sx.val.l >= -32767) && (iptr->sx.val.l <= 32767)) {
 651                                 M_LADD_IMM(s1, -iptr->sx.val.l, d);
 652                         } else {
 653                                 LCONST(REG_ITMP2, iptr->sx.val.l);
 654                                 M_SUB(s1, REG_ITMP2, d);
 655                         }
 656                         emit_store_dst(jd, iptr, d);
 657                         break;
 658
 659                 case ICMD_IDIV:
 660                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 661                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 662                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 663                         emit_arithmetic_check(cd, iptr, s2);
 664
 665                         M_DIV(s1, s2, d);
 666                         M_EXTSW(d, d);
 667                         emit_store_dst(jd, iptr, d);
 668                         break;
 669
 670                 case ICMD_LDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 671
 672                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 673                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 674                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 675                         emit_arithmetic_check(cd, iptr, s2);
 676
 677                         M_DIV(s1, s2, d);
 678                         /* we need to test if divident was 0x8000000000000, bit OV is set in XER in this case */
 679                         /* we only need to check this if we did a LDIV, not for IDIV */
 680                         M_MFXER(REG_ITMP2);
 681                         M_ANDIS(REG_ITMP2, 0x4000, REG_ITMP2);  /* test OV */
 682                         M_BLE(1);
 683                         M_MOV(s1, d);                           /* java specs says result == dividend */
 684                         emit_store_dst(jd, iptr, d);
 685                         break;
 686
 687                 case ICMD_IREM:
 688                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 689                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 690                         emit_arithmetic_check(cd, iptr, s2);
 691
 692                         M_DIV(s1, s2,  REG_ITMP3);
 693                         M_MUL(REG_ITMP3, s2, REG_ITMP2);
 694                         M_SUB(s1, REG_ITMP2,  REG_ITMP3);
 695                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 696
 697                         M_MOV(REG_ITMP3, d);
 698                         emit_store_dst(jd, iptr, d);
 699                         break;
 700
 701
 702                 case ICMD_LREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 703                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 704                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 705                         emit_arithmetic_check(cd, iptr, s2);
 706
 707                         M_DIV(s1, s2,  REG_ITMP3);
 708                         /* we need to test if divident was 0x8000000000000, bit OV is set in XER in this case */
 709                         /* we only need to check this if we did a LDIV, not for IDIV */
 710                         M_MFXER(REG_ITMP2);
 711                         M_ANDIS(REG_ITMP2, 0x4000, REG_ITMP2);  /* test OV */
 712                         M_BLE(2);
 713                         LCONST(REG_ITMP3, 0);                   /* result == 0 in this case */
 714                         M_BR(2);
 715                         M_MUL(REG_ITMP3, s2, REG_ITMP2);
 716                         M_SUB(s1, REG_ITMP2,  REG_ITMP3);
 717                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 718
 719                         M_MOV(REG_ITMP3, d);
 720                         emit_store_dst(jd, iptr, d);
 721                         break;
 722
 723
 724                 case ICMD_IMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 725                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 726                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 727                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 728                         M_MUL(s1, s2, d);
 729                         M_EXTSW(d, d);
 730                         emit_store_dst(jd, iptr, d);
 731                         break;
 732
 733                 case ICMD_LMUL:
 734                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 735                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 736                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 737                         M_MUL(s1, s2, d);
 738                         emit_store_dst(jd, iptr, d);
 739                         break;
 740
 741                 case ICMD_IMULCONST:  /* ..., value  ==> ..., value * constant        */
 742                                       /* sx.val.i = constant                          */
 743
 744                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 745                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 746                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767))
 747                                 M_MUL_IMM(s1, iptr->sx.val.i, d);
 748                         else {
 749                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 750                                 M_MUL(s1, REG_ITMP3, d);
 751                         }
 752                         M_EXTSW(d, d);
 753                         emit_store_dst(jd, iptr, d);
 754                         break;
 755                 case ICMD_LMULCONST:
 756                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 757                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 758                         if ((iptr->sx.val.l >= -32767) && (iptr->sx.val.l <= 32767))
 759                                 M_MUL_IMM(s1, iptr->sx.val.l, d);
 760                         else {
 761                                 LCONST(REG_ITMP3, iptr->sx.val.l);
 762                                 M_MUL(s1, REG_ITMP3, d);
 763                         }
 764                         emit_store_dst(jd, iptr, d);
 765                         break;
 766
 767                 case ICMD_IDIVPOW2:   /* ..., value  ==> ..., value << constant       */
 768
 769                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 770                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 771                         M_SRA_IMM(s1, iptr->sx.val.i, d);
 772                         M_ADDZE(d, d);
 773                         M_EXTSW(d, d);
 774                         emit_store_dst(jd, iptr, d);
 775                         break;
 776
 777                 case ICMD_ISHL:       /* ..., val1, val2  ==> ..., val1 << val2       */
 778
 779                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 780                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 781                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 782                         M_AND_IMM(s2, 0x1f, REG_ITMP3);
 783                         M_SLL(s1, REG_ITMP3, d);
 784                         M_EXTSW(d, d);
 785                         emit_store_dst(jd, iptr, d);
 786                         break;
 787
 788                 case ICMD_ISHLCONST:  /* ..., value  ==> ..., value << constant       */
 789                                       /* sx.val.i = constant                             */
 790
 791                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 792                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 793                         M_SLL_IMM(s1, iptr->sx.val.i & 0x1f, d);
 794                         M_EXTSW(d,d);
 795                         emit_store_dst(jd, iptr, d);
 796                         break;
 797
 798                 case ICMD_ISHR:       /* ..., val1, val2  ==> ..., val1 >> val2       */
 799
 800                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 801                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 802                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 803                         M_AND_IMM(s2, 0x1f, REG_ITMP3);
 804                         M_SRA(s1, REG_ITMP3, d);
 805                         emit_store_dst(jd, iptr, d);
 806                         break;
 807
 808                 case ICMD_ISHRCONST:  /* ..., value  ==> ..., value >> constant       */
 809                                       /* sx.val.i = constant                             */
 810
 811                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 812                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 813                         M_SRA_IMM(s1, iptr->sx.val.i & 0x1f, d);
 814                         emit_store_dst(jd, iptr, d);
 815                         break;
 816
 817                 case ICMD_IUSHR:      /* ..., val1, val2  ==> ..., val1 >>> val2      */
 818
 819                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 820                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 821                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 822                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 823                         M_MOV(s1, REG_ITMP1);
 824                         M_CLR_HIGH(REG_ITMP1);
 825                         M_SRL(REG_ITMP1, REG_ITMP2, d);
 826                         M_EXTSW(d,d);   /* for the case it was shift 0 bits */
 827                         emit_store_dst(jd, iptr, d);
 828                         break;
 829
 830                 case ICMD_IUSHRCONST: /* ..., value  ==> ..., value >>> constant      */
 831                                       /* sx.val.i = constant                             */
 832
 833                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 834                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 835                         if (iptr->sx.val.i & 0x1f) {
 836                                 M_MOV(s1, REG_ITMP1);
 837                                 M_CLR_HIGH(REG_ITMP1);
 838                                 M_SRA_IMM(REG_ITMP1, iptr->sx.val.i & 0x1f, d);
 839                         } else {
 840                                 M_INTMOVE(s1, d);
 841                         }
 842                         emit_store_dst(jd, iptr, d);
 843                         break;
 844
 845                 case ICMD_LSHLCONST:
 846                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 847                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 848                         M_SLL_IMM(s1, iptr->sx.val.i & 0x3f, d);
 849                         emit_store_dst(jd, iptr, d);
 850                         break;
 851                 case ICMD_LSHL:
 852                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 853                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 854                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 855                         M_AND_IMM(s2, 0x3f, REG_ITMP2);
 856                         M_SLL(s1, REG_ITMP2, d);
 857                         emit_store_dst(jd, iptr, d);
 858                         break;
 859                 case ICMD_LSHRCONST:
 860                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 861                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 862                         M_SRA_IMM(s1, iptr->sx.val.i & 0x3f, d);
 863                         emit_store_dst(jd, iptr, d);
 864                         break;
 865                 case ICMD_LSHR:
 866                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 867                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 868                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 869                         M_AND_IMM(s2, 0x3f, REG_ITMP2);
 870                         M_SRA(s1, REG_ITMP2, d);
 871                         emit_store_dst(jd, iptr, d);
 872                         break;
 873                 case ICMD_LUSHRCONST:
 874                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 875                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 876                         M_SRL_IMM(s1, iptr->sx.val.i & 0x3f, d);
 877                         emit_store_dst(jd, iptr, d);
 878                         break;
 879                 case ICMD_LUSHR:
 880                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 881                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 882                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 883                         M_AND_IMM(s2, 0x3f, REG_ITMP2);
 884                         M_SRL(s1, REG_ITMP2, d);
 885                         emit_store_dst(jd, iptr, d);
 886                         break;
 887
 888                 case ICMD_IAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 889                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 890                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 891                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 892                         M_AND(s1, s2, d);
 893 /*                      M_EXTSW(d, d);*/
 894                         emit_store_dst(jd, iptr, d);
 895                         break;
 896
 897                 case ICMD_LAND:
 898                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 899                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 900                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 901                         M_AND(s1, s2, d);
 902                         emit_store_dst(jd, iptr, d);
 903                         break;
 904
 905                 case ICMD_IANDCONST:  /* ..., value  ==> ..., value & constant        */
 906                                       /* sx.val.i = constant                          */
 907
 908                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 909                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 910                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535)) {
 911                                 M_AND_IMM(s1, iptr->sx.val.i, d);
 912                                 }
 913                         /*
 914                         else if (iptr->sx.val.i == 0xffffff) {
 915                                 M_RLWINM(s1, 0, 8, 31, d);
 916                                 }
 917                         */
 918                         else {
 919                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 920                                 M_AND(s1, REG_ITMP3, d);
 921                         }
 922                         emit_store_dst(jd, iptr, d);
 923                         break;
 924
 925                 case ICMD_LANDCONST:  /* ..., value  ==> ..., value & constant        */
 926                                       /* sx.val.l = constant                          */
 927
 928                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 929                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 930                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
 931                                 M_AND_IMM(s1, iptr->sx.val.l, d);
 932                         /*
 933                         else if (iptr->sx.val.l == 0xffffff) {
 934                                 M_RLWINM(s1, 0, 8, 31, d);
 935                                 }
 936                         */
 937                         else {
 938                                 LCONST(REG_ITMP3, iptr->sx.val.l);
 939                                 M_AND(s1, REG_ITMP3, d);
 940                         }
 941                         emit_store_dst(jd, iptr, d);
 942                         break;
 943
 944                 case ICMD_IREMPOW2:   /* ..., value  ==> ..., value % constant        */
 945                                       /* sx.val.i = constant                             */
 946                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 947                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 948 #if 0
 949                         /* fast division, result in REG_ITMP3) */
 950                         M_SRA_IMM(s1, iptr->sx.val.i, REG_ITMP3);
 951                         M_ADDZE(REG_ITMP3, REG_ITMP3);
 952
 953                         M_SUB(s1, REG_ITMP3, d);
 954                         M_EXTSW(d, d);
 955                         emit_store_dst(jd, iptr, d);
 956                         break;
 957 #else
 958
 959                         M_MOV(s1, REG_ITMP2);
 960                         M_CMPI(s1, 0);
 961                         M_BGE(1 + 3*(iptr->sx.val.i >= 32768));
 962                         if (iptr->sx.val.i >= 32768) {
 963                                 M_ADDIS(REG_ZERO, iptr->sx.val.i >> 16, REG_ITMP2);
 964                                 M_EXTSW(REG_ITMP2, REG_ITMP2);
 965                                 M_OR_IMM(REG_ITMP2, iptr->sx.val.i, REG_ITMP2);
 966                                 M_IADD(s1, REG_ITMP2, REG_ITMP2);
 967                         } else {
 968                                 M_IADD_IMM(s1, iptr->sx.val.i, REG_ITMP2);
 969                         }
 970                         {
 971                                 int b=0, m = iptr->sx.val.i;
 972                                 while (m >>= 1)
 973                                         ++b;
 974                                 M_RLWINM(REG_ITMP2, 0, 0, 30-b, REG_ITMP2);
 975                         }
 976                         M_SUB(s1, REG_ITMP2, d);
 977                         M_EXTSW(d, d);
 978                         emit_store_dst(jd, iptr, d);
 979                         break;
 980 #endif
 981
 982                 case ICMD_IOR:        /* ..., val1, val2  ==> ..., val1 | val2        */
 983                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 984                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 985                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 986                         M_OR(s1, s2, d);
 987 /*                      M_EXTSW(d,d);*/
 988                         emit_store_dst(jd, iptr, d);
 989                         break;
 990
 991                 case ICMD_LOR:
 992
 993                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 994                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 995                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 996                         M_OR(s1, s2, d);
 997                         emit_store_dst(jd, iptr, d);
 998                         break;
 999
1000                 case ICMD_IORCONST:   /* ..., value  ==> ..., value | constant        */
1001                                       /* sx.val.i = constant                          */
1002
1003                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1004                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1005                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
1006                                 M_OR_IMM(s1, iptr->sx.val.i, d);
1007                         else {
1008                                 ICONST(REG_ITMP3, iptr->sx.val.i);
1009                                 M_OR(s1, REG_ITMP3, d);
1010                         }
1011                         emit_store_dst(jd, iptr, d);
1012                         break;
1013
1014                 case ICMD_LORCONST:   /* ..., value  ==> ..., value | constant        */
1015                                       /* sx.val.l = constant                          */
1016
1017                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1018                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1019                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
1020                                 M_OR_IMM(s1, iptr->sx.val.l, d);
1021                         else {
1022                                 LCONST(REG_ITMP3, iptr->sx.val.l);
1023                                 M_OR(s1, REG_ITMP3, d);
1024                         }
1025                         emit_store_dst(jd, iptr, d);
1026                         break;
1027
1028
1029                 case ICMD_IXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
1030                 case ICMD_LXOR:
1031
1032                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1033                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1034                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1035                         M_XOR(s1, s2, d);
1036                         emit_store_dst(jd, iptr, d);
1037                         break;
1038
1039                 case ICMD_IXORCONST:  /* ..., value  ==> ..., value ^ constant        */
1040                                       /* sx.val.i = constant                          */
1041
1042                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1043                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1044                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
1045                                 M_XOR_IMM(s1, iptr->sx.val.i, d);
1046                         else {
1047                                 ICONST(REG_ITMP3, iptr->sx.val.i);
1048                                 M_XOR(s1, REG_ITMP3, d);
1049                         }
1050                         emit_store_dst(jd, iptr, d);
1051                         break;
1052
1053                 case ICMD_LXORCONST:  /* ..., value  ==> ..., value ^ constant        */
1054                                       /* sx.val.l = constant                          */
1055
1056                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1057                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1058                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
1059                                 M_XOR_IMM(s1, iptr->sx.val.l, d);
1060                         else {
1061                                 LCONST(REG_ITMP3, iptr->sx.val.l);
1062                                 M_XOR(s1, REG_ITMP3, d);
1063                         }
1064                         emit_store_dst(jd, iptr, d);
1065                         break;
1066
1067                 case ICMD_LCMP:       /* ..., val1, val2  ==> ..., val1 cmp val2      */
1068
1069                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1070                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1071                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
1072                         /* XXX implement me!!! */
1073                         vm_abort("codegen: implement ICMD_LCMP!");
1074                         emit_store_dst(jd, iptr, d);
1075                         break;
1076                         break;
1077
1078
1079                 /* floating operations ************************************************/
1080
1081                 case ICMD_FNEG:       /* ..., value  ==> ..., - value                 */
1082
1083                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1084                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1085                         M_FMOVN(s1, d);
1086                         emit_store_dst(jd, iptr, d);
1087                         break;
1088
1089                 case ICMD_DNEG:       /* ..., value  ==> ..., - value                 */
1090
1091                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1092                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1093                         M_FMOVN(s1, d);
1094                         emit_store_dst(jd, iptr, d);
1095                         break;
1096
1097                 case ICMD_FADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
1098
1099                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1100                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1101                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1102                         M_FADD(s1, s2, d);
1103                         emit_store_dst(jd, iptr, d);
1104                         break;
1105
1106                 case ICMD_DADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
1107
1108                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1109                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1110                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1111                         M_DADD(s1, s2, d);
1112                         emit_store_dst(jd, iptr, d);
1113                         break;
1114
1115                 case ICMD_FSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
1116
1117                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1118                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1119                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1120                         M_FSUB(s1, s2, d);
1121                         emit_store_dst(jd, iptr, d);
1122                         break;
1123
1124                 case ICMD_DSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
1125
1126                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1127                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1128                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1129                         M_DSUB(s1, s2, d);
1130                         emit_store_dst(jd, iptr, d);
1131                         break;
1132
1133                 case ICMD_FMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1134
1135                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1136                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1137                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1138                         M_FMUL(s1, s2, d);
1139                         emit_store_dst(jd, iptr, d);
1140                         break;
1141
1142                 case ICMD_DMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1143
1144                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1145                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1146                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1147                         M_DMUL(s1, s2, d);
1148                         emit_store_dst(jd, iptr, d);
1149                         break;
1150
1151                 case ICMD_FDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1152
1153                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1154                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1155                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1156                         M_FDIV(s1, s2, d);
1157                         emit_store_dst(jd, iptr, d);
1158                         break;
1159
1160                 case ICMD_DDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1161
1162                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1163                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1164                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1165                         M_DDIV(s1, s2, d);
1166                         emit_store_dst(jd, iptr, d);
1167                         break;
1168
1169                 case ICMD_F2I:       /* ..., value  ==> ..., (int) value              */
1170                 case ICMD_D2I:
1171
1172                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1173                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1174                         M_CLR(d);
1175                         disp = dseg_add_float(cd, 0.0);
1176                         M_FLD(REG_FTMP2, REG_PV, disp);
1177                         M_FCMPU(s1, REG_FTMP2);
1178                         M_BNAN(4);
1179                         disp = dseg_add_unique_s4(cd, 0);
1180                         M_CVTDL_C(s1, REG_FTMP1);
1181                         M_LDA(REG_ITMP1, REG_PV, disp);
1182                         M_STFIWX(REG_FTMP1, 0, REG_ITMP1);
1183                         M_ILD(d, REG_PV, disp);
1184                         emit_store_dst(jd, iptr, d);
1185                         break;
1186
1187                 case ICMD_F2D:       /* ..., value  ==> ..., (double) value           */
1188
1189                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1190                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1191                         M_FLTMOVE(s1, d);
1192                         emit_store_dst(jd, iptr, d);
1193                         break;
1194
1195                 case ICMD_D2F:       /* ..., value  ==> ..., (double) value           */
1196
1197                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1198                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1199                         M_CVTDF(s1, d);
1200                         emit_store_dst(jd, iptr, d);
1201                         break;
1202
1203                 case ICMD_FCMPL:      /* ..., val1, val2  ==> ..., val1 fcmpg val2    */
1204                 case ICMD_DCMPL:      /* == => 0, < => 1, > => -1                     */
1205
1206
1207                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1208                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1209                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1210                         M_FCMPU(s2, s1);
1211                         M_IADD_IMM(REG_ZERO, -1, d);
1212                         M_BNAN(4);
1213                         M_BGT(3);
1214                         M_IADD_IMM(REG_ZERO, 0, d);
1215                         M_BGE(1);
1216                         M_IADD_IMM(REG_ZERO, 1, d);
1217                         emit_store_dst(jd, iptr, d);
1218                         break;
1219
1220                 case ICMD_FCMPG:      /* ..., val1, val2  ==> ..., val1 fcmpl val2    */
1221                 case ICMD_DCMPG:      /* == => 0, < => 1, > => -1                     */
1222
1223                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1224                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1225                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1226                         M_FCMPU(s1, s2);
1227                         M_IADD_IMM(REG_ZERO, 1, d);
1228                         M_BNAN(4);
1229                         M_BGT(3);
1230                         M_IADD_IMM(REG_ZERO, 0, d);
1231                         M_BGE(1);
1232                         M_IADD_IMM(REG_ZERO, -1, d);
1233                         emit_store_dst(jd, iptr, d);
1234                         break;
1235
1236                 case ICMD_IF_FCMPEQ:    /* ..., value, value ==> ...                  */
1237                 case ICMD_IF_DCMPEQ:
1238
1239                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1240                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1241                         M_FCMPU(s1, s2);
1242                         M_BNAN(1);
1243                         emit_beq(cd, iptr->dst.block);
1244                         break;
1245
1246                 case ICMD_IF_FCMPNE:    /* ..., value, value ==> ...                  */
1247                 case ICMD_IF_DCMPNE:
1248
1249                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1250                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1251                         M_FCMPU(s1, s2);
1252                         emit_bnan(cd, iptr->dst.block);
1253                         emit_bne(cd, iptr->dst.block);
1254                         break;
1255
1256
1257                 case ICMD_IF_FCMPL_LT:  /* ..., value, value ==> ...                  */
1258                 case ICMD_IF_DCMPL_LT:
1259
1260                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1261                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1262                         M_FCMPU(s1, s2);
1263                         emit_bnan(cd, iptr->dst.block);
1264                         emit_blt(cd, iptr->dst.block);
1265                         break;
1266
1267                 case ICMD_IF_FCMPL_GT:  /* ..., value, value ==> ...                  */
1268                 case ICMD_IF_DCMPL_GT:
1269
1270                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1271                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1272                         M_FCMPU(s1, s2);
1273                         M_BNAN(1);
1274                         emit_bgt(cd, iptr->dst.block);
1275                         break;
1276
1277                 case ICMD_IF_FCMPL_LE:  /* ..., value, value ==> ...                  */
1278                 case ICMD_IF_DCMPL_LE:
1279
1280                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1281                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1282                         M_FCMPU(s1, s2);
1283                         emit_bnan(cd, iptr->dst.block);
1284                         emit_ble(cd, iptr->dst.block);
1285                         break;
1286
1287                 case ICMD_IF_FCMPL_GE:  /* ..., value, value ==> ...                  */
1288                 case ICMD_IF_DCMPL_GE:
1289
1290                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1291                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1292                         M_FCMPU(s1, s2);
1293                         M_BNAN(1);
1294                         emit_bge(cd, iptr->dst.block);
1295                         break;
1296
1297                 case ICMD_IF_FCMPG_LT:  /* ..., value, value ==> ...                  */
1298                 case ICMD_IF_DCMPG_LT:
1299
1300                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1301                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1302                         M_FCMPU(s1, s2);
1303                         M_BNAN(1);
1304                         emit_blt(cd, iptr->dst.block);
1305                         break;
1306
1307                 case ICMD_IF_FCMPG_GT:  /* ..., value, value ==> ...                  */
1308                 case ICMD_IF_DCMPG_GT:
1309
1310                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1311                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1312                         M_FCMPU(s1, s2);
1313                         emit_bnan(cd, iptr->dst.block);
1314                         emit_bgt(cd, iptr->dst.block);
1315                         break;
1316
1317                 case ICMD_IF_FCMPG_LE:  /* ..., value, value ==> ...                  */
1318                 case ICMD_IF_DCMPG_LE:
1319
1320                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1321                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1322                         M_FCMPU(s1, s2);
1323                         M_BNAN(1);
1324                         emit_ble(cd, iptr->dst.block);
1325                         break;
1326
1327                 case ICMD_IF_FCMPG_GE:  /* ..., value, value ==> ...                  */
1328                 case ICMD_IF_DCMPG_GE:
1329
1330                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1331                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1332                         M_FCMPU(s1, s2);
1333                         emit_bnan(cd, iptr->dst.block);
1334                         emit_bge(cd, iptr->dst.block);
1335                         break;
1336
1337
1338                 /* memory operations **************************************************/
1339
1340                 case ICMD_ARRAYLENGTH: /* ..., arrayref  ==> ..., length              */
1341
1342                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1343                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1344                         emit_nullpointer_check(cd, iptr, s1);
1345                         M_ILD(d, s1, OFFSET(java_arrayheader, size));
1346                         emit_store_dst(jd, iptr, d);
1347                         break;
1348
1349                 case ICMD_BALOAD:     /* ..., arrayref, index  ==> ..., value         */
1350
1351                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1352                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1353                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1354                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1355                         M_IADD_IMM(s2, OFFSET(java_bytearray, data[0]), REG_ITMP2);
1356                         /* implicit null-pointer check */
1357                         M_LBZX(d, s1, REG_ITMP2);
1358                         M_BSEXT(d, d);
1359                         emit_store_dst(jd, iptr, d);
1360                         break;
1361
1362                 case ICMD_CALOAD:     /* ..., arrayref, index  ==> ..., value         */
1363
1364                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1365                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1366                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1367                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1368                         M_SLL_IMM(s2, 1, REG_ITMP2);
1369                         M_IADD_IMM(REG_ITMP2, OFFSET(java_chararray, data[0]), REG_ITMP2);
1370                         /* implicit null-pointer check */
1371                         M_LHZX(d, s1, REG_ITMP2);
1372                         emit_store_dst(jd, iptr, d);
1373                         break;
1374
1375                 case ICMD_SALOAD:     /* ..., arrayref, index  ==> ..., value         */
1376
1377                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1378                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1379                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1380                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1381                         M_SLL_IMM(s2, 1, REG_ITMP2);
1382                         M_IADD_IMM(REG_ITMP2, OFFSET(java_shortarray, data[0]), REG_ITMP2);
1383                         /* implicit null-pointer check */
1384                         M_LHAX(d, s1, REG_ITMP2);
1385                         emit_store_dst(jd, iptr, d);
1386                         break;
1387
1388                 case ICMD_IALOAD:     /* ..., arrayref, index  ==> ..., value         */
1389
1390                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1391                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1392                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1393                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1394                         M_SLL_IMM(s2, 2, REG_ITMP2);
1395                         M_IADD_IMM(REG_ITMP2, OFFSET(java_intarray, data[0]), REG_ITMP2);
1396                         /* implicit null-pointer check */
1397                         M_LWAX(d, s1, REG_ITMP2);
1398                         emit_store_dst(jd, iptr, d);
1399                         break;
1400
1401                 case ICMD_LALOAD:     /* ..., arrayref, index  ==> ..., value         */
1402
1403                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1404                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1405                         d = codegen_reg_of_dst(jd, iptr, PACK_REGS(REG_ITMP2, REG_ITMP1));
1406                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1407                         M_SLL_IMM(s2, 3, REG_ITMP2);
1408                         M_IADD(s1, REG_ITMP2, REG_ITMP2);
1409                         /* implicit null-pointer check */
1410                         M_LLD_INTERN(d, REG_ITMP2, OFFSET(java_longarray, data[0]));
1411                         emit_store_dst(jd, iptr, d);
1412                         break;
1413
1414                 case ICMD_FALOAD:     /* ..., arrayref, index  ==> ..., value         */
1415
1416                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1417                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1418                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1419                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1420                         M_SLL_IMM(s2, 2, REG_ITMP2);
1421                         M_IADD_IMM(REG_ITMP2, OFFSET(java_floatarray, data[0]), REG_ITMP2);
1422                         /* implicit null-pointer check */
1423                         M_LFSX(d, s1, REG_ITMP2);
1424                         emit_store_dst(jd, iptr, d);
1425                         break;
1426
1427                 case ICMD_DALOAD:     /* ..., arrayref, index  ==> ..., value         */
1428
1429                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1430                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1431                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1432                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1433                         M_SLL_IMM(s2, 3, REG_ITMP2);
1434                         M_IADD_IMM(REG_ITMP2, OFFSET(java_doublearray, data[0]), REG_ITMP2);
1435                         /* implicit null-pointer check */
1436                         M_LFDX(d, s1, REG_ITMP2);
1437                         emit_store_dst(jd, iptr, d);
1438                         break;
1439
1440                 case ICMD_AALOAD:     /* ..., arrayref, index  ==> ..., value         */
1441
1442                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1443                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1444                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1445                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1446                         M_SLL_IMM(s2, 3, REG_ITMP2);
1447                         M_IADD_IMM(REG_ITMP2, OFFSET(java_objectarray, data[0]), REG_ITMP2);
1448                         /* implicit null-pointer check */
1449                         M_ALDX(d, s1, REG_ITMP2);
1450                         emit_store_dst(jd, iptr, d);
1451                         break;
1452
1453
1454                 case ICMD_BASTORE:    /* ..., arrayref, index, value  ==> ...         */
1455
1456                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1457                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1458                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1459                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1460                         M_IADD_IMM(s2, OFFSET(java_bytearray, data[0]), REG_ITMP2);
1461                         /* implicit null-pointer check */
1462                         M_STBX(s3, s1, REG_ITMP2);
1463                         break;
1464
1465                 case ICMD_CASTORE:    /* ..., arrayref, index, value  ==> ...         */
1466
1467                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1468                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1469                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1470                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1471                         M_SLL_IMM(s2, 1, REG_ITMP2);
1472                         M_IADD_IMM(REG_ITMP2, OFFSET(java_chararray, data[0]), REG_ITMP2);
1473                         /* implicit null-pointer check */
1474                         M_STHX(s3, s1, REG_ITMP2);
1475                         break;
1476
1477                 case ICMD_SASTORE:    /* ..., arrayref, index, value  ==> ...         */
1478
1479                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1480                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1481                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1482                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1483                         M_SLL_IMM(s2, 1, REG_ITMP2);
1484                         M_IADD_IMM(REG_ITMP2, OFFSET(java_shortarray, data[0]), REG_ITMP2);
1485                         M_STHX(s3, s1, REG_ITMP2);
1486                         break;
1487
1488                 case ICMD_IASTORE:    /* ..., arrayref, index, value  ==> ...         */
1489
1490                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1491                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1492                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1493                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1494                         M_SLL_IMM(s2, 2, REG_ITMP2);
1495                         M_IADD_IMM(REG_ITMP2, OFFSET(java_intarray, data[0]), REG_ITMP2);
1496                         /* implicit null-pointer check */
1497                         M_STWX(s3, s1, REG_ITMP2);
1498                         break;
1499
1500                 case ICMD_LASTORE:    /* ..., arrayref, index, value  ==> ...         */
1501
1502                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1503                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1504                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1505                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1506                         M_SLL_IMM(s2, 3, REG_ITMP2);
1507                         M_IADD_IMM(REG_ITMP2, OFFSET(java_longarray, data[0]), REG_ITMP2);
1508                         /* implicit null-pointer check */
1509                         M_LSTX(s3, s1, REG_ITMP2);
1510                         break;
1511
1512                 case ICMD_FASTORE:    /* ..., arrayref, index, value  ==> ...         */
1513
1514                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1515                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1516                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1517                         s3 = emit_load_s3(jd, iptr, REG_FTMP3);
1518                         M_SLL_IMM(s2, 2, REG_ITMP2);
1519                         M_IADD_IMM(REG_ITMP2, OFFSET(java_floatarray, data[0]), REG_ITMP2);
1520                         /* implicit null-pointer check */
1521                         M_STFSX(s3, s1, REG_ITMP2);
1522                         break;
1523
1524                 case ICMD_DASTORE:    /* ..., arrayref, index, value  ==> ...         */
1525
1526                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1527                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1528                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1529                         s3 = emit_load_s3(jd, iptr, REG_FTMP3);
1530                         M_SLL_IMM(s2, 3, REG_ITMP2);
1531                         M_IADD_IMM(REG_ITMP2, OFFSET(java_doublearray, data[0]), REG_ITMP2);
1532                         /* implicit null-pointer check */
1533                         M_STFDX(s3, s1, REG_ITMP2);
1534                         break;
1535
1536                 case ICMD_AASTORE:    /* ..., arrayref, index, value  ==> ...         */
1537
1538                         s1 = emit_load_s1(jd, iptr, REG_A0);
1539                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1540                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1541                         s3 = emit_load_s3(jd, iptr, REG_A1);
1542
1543                         disp = dseg_add_functionptr(cd, BUILTIN_canstore);
1544                         M_ALD(REG_ITMP3, REG_PV, disp);
1545                         M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
1546                         M_MTCTR(REG_ITMP3);
1547
1548                         M_INTMOVE(s1, REG_A0);
1549                         M_INTMOVE(s3, REG_A1);
1550
1551                         M_JSR;
1552                         emit_exception_check(cd, iptr);
1553
1554                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1555                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1556                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1557                         M_SLL_IMM(s2, 3, REG_ITMP2);
1558                         M_IADD_IMM(REG_ITMP2, OFFSET(java_objectarray, data[0]), REG_ITMP2);
1559                         /* implicit null-pointer check */
1560                         M_ASTX(s3, s1, REG_ITMP2);
1561                         break;
1562
1563
1564                 case ICMD_GETSTATIC:  /* ...  ==> ..., value                          */
1565
1566                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1567                                 uf        = iptr->sx.s23.s3.uf;
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                         }
1575                         else {
1576                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
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                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1617                                 disp      = dseg_add_unique_address(cd, NULL);
1618
1619                                 codegen_addpatchref(cd, PATCHER_get_putstatic,
1620                                                                         iptr->sx.s23.s3.uf, disp);
1621                         }
1622                         else {
1623                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1624                                 fieldtype = fi->type;
1625                                 disp      = dseg_add_address(cd, fi->value);
1626
1627                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1628                                         codegen_addpatchref(cd, PATCHER_clinit, fi->class, disp);
1629                                 }
1630                         }
1631
1632                         M_ALD(REG_ITMP1, REG_PV, disp);
1633                         switch (fieldtype) {
1634                         case TYPE_INT:
1635                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1636                                 M_IST_INTERN(s1, REG_ITMP1, 0);
1637                                 break;
1638                         case TYPE_LNG:
1639                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1640                                 M_LST_INTERN(s1, REG_ITMP1, 0);
1641                                 break;
1642                         case TYPE_ADR:
1643                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1644                                 M_AST_INTERN(s1, REG_ITMP1, 0);
1645                                 break;
1646                         case TYPE_FLT:
1647                                 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1648                                 M_FST_INTERN(s1, REG_ITMP1, 0);
1649                                 break;
1650                         case TYPE_DBL:
1651                                 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1652                                 M_DST_INTERN(s1, REG_ITMP1, 0);
1653                                 break;
1654                         }
1655                         break;
1656
1657
1658                 case ICMD_GETFIELD:   /* ...  ==> ..., value                          */
1659
1660                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1661
1662                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1663                                 uf        = iptr->sx.s23.s3.uf;
1664                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1665                                 disp      = 0;
1666
1667                                 codegen_addpatchref(cd, PATCHER_get_putfield, uf, 0);
1668                         }
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 #endif
1961
1962 #if defined(ENABLE_THREADS)
1963                         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
1964                                 disp = dseg_add_functionptr(cd, LOCK_monitor_exit);
1965                                 M_ALD(REG_ITMP3, REG_PV, disp);
1966                                 M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
1967                                 M_MTCTR(REG_ITMP3);
1968
1969                                 /* we need to save the proper return value */
1970
1971                                 switch (iptr->opc) {
1972                                 case ICMD_LRETURN:
1973                                 case ICMD_IRETURN:
1974                                 case ICMD_ARETURN:
1975                                         /* fall through */
1976                                         M_LST(REG_RESULT , REG_SP, rd->memuse * 8 + 8);
1977                                         break;
1978                                 case ICMD_FRETURN:
1979                                         M_FST(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
1980                                         break;
1981                                 case ICMD_DRETURN:
1982                                         M_DST(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
1983                                         break;
1984                                 }
1985
1986                                 M_ALD(REG_A0, REG_SP, rd->memuse * 8);
1987                                 M_JSR;
1988
1989                                 /* and now restore the proper return value */
1990
1991                                 switch (iptr->opc) {
1992                                 case ICMD_LRETURN:
1993                                 case ICMD_IRETURN:
1994                                 case ICMD_ARETURN:
1995                                         /* fall through */
1996                                         M_LLD(REG_RESULT , REG_SP, rd->memuse * 8 + 8);
1997                                         break;
1998                                 case ICMD_FRETURN:
1999                                         M_FLD(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
2000                                         break;
2001                                 case ICMD_DRETURN:
2002                                         M_DLD(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
2003                                         break;
2004                                 }
2005                         }
2006 #endif
2007
2008                         /* restore return address                                         */
2009
2010                         if (!jd->isleafmethod) {
2011                                 /* ATTENTION: Don't use REG_ZERO (r0) here, as M_ALD
2012                                    may have a displacement overflow. */
2013
2014                                 M_ALD(REG_ITMP1, REG_SP, p * 8 + LA_LR_OFFSET);
2015                                 M_MTLR(REG_ITMP1);
2016                         }
2017
2018                         /* restore saved registers                                        */
2019
2020                         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
2021                                 p--; M_LLD(rd->savintregs[i], REG_SP, p * 8);
2022                         }
2023                         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
2024                                 p--; M_DLD(rd->savfltregs[i], REG_SP, p * 8);
2025                         }
2026
2027                         /* deallocate stack                                               */
2028
2029                         if (cd->stackframesize)
2030                                 M_LDA(REG_SP, REG_SP, cd->stackframesize * 8);
2031
2032                         M_RET;
2033                         ALIGNCODENOP;
2034                         }
2035                         break;
2036
2037
2038                 case ICMD_TABLESWITCH:  /* ..., index ==> ...                         */
2039                         {
2040                         s4 i, l;
2041                         branch_target_t *table;
2042
2043                         table = iptr->dst.table;
2044
2045                         l = iptr->sx.s23.s2.tablelow;
2046                         i = iptr->sx.s23.s3.tablehigh;
2047
2048                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2049                         if (l == 0) {
2050                                 M_INTMOVE(s1, REG_ITMP1);
2051                         } else if (l <= 32768) {
2052                                 M_LDA(REG_ITMP1, s1, -l);
2053                         } else {
2054                                 ICONST(REG_ITMP2, l);
2055                                 M_SUB(s1, REG_ITMP2, REG_ITMP1);
2056                         }
2057
2058                         /* number of targets */
2059                         i = i - l + 1;
2060
2061                         /* range check */
2062
2063                         M_CMPUI(REG_ITMP1, i - 1);
2064                         emit_bgt(cd, table[0].block);
2065
2066                         /* build jump table top down and use address of lowest entry */
2067
2068                         table += i;
2069
2070                         while (--i >= 0) {
2071                                 dseg_add_target(cd, table->block);
2072                                 --table;
2073                         }
2074
2075                         /* length of dataseg after last dseg_add_unique_target is used by load */
2076
2077                         M_SLL_IMM(REG_ITMP1, 3, REG_ITMP1);
2078                         M_IADD(REG_ITMP1, REG_PV, REG_ITMP2);
2079                         M_ALD(REG_ITMP2, REG_ITMP2, -(cd->dseglen));
2080                         M_MTCTR(REG_ITMP2);
2081                         M_RTS;
2082                         ALIGNCODENOP;
2083                         }
2084                         break;
2085
2086
2087                 case ICMD_LOOKUPSWITCH: /* ..., key ==> ...                           */
2088                         {
2089                         s4 i, val;
2090                         lookup_target_t *lookup;
2091
2092                         lookup = iptr->dst.lookup;
2093
2094                         i = iptr->sx.s23.s2.lookupcount;
2095
2096                         MCODECHECK((i<<3)+8);
2097                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2098                         while (--i >= 0) {
2099                                 val = lookup->value;
2100                                 if ((val >= -32768) && (val <= 32767)) {
2101                                         M_CMPI(s1, val);
2102
2103                                 } else {
2104                                         a = dseg_add_s4(cd, val);
2105                                         M_ILD(REG_ITMP2, REG_PV, a);
2106                                         M_CMP(s1, REG_ITMP2);
2107                                 }
2108                                 emit_beq(cd, lookup->target.block);
2109                                 ++lookup;
2110                         }
2111
2112                         emit_br(cd, iptr->sx.s23.s3.lookupdefault.block);
2113
2114                         ALIGNCODENOP;
2115                         break;
2116                         }
2117
2118
2119                 case ICMD_BUILTIN:      /* ..., [arg1, [arg2 ...]] ==> ...            */
2120
2121                         bte = iptr->sx.s23.s3.bte;
2122                         md = bte->md;
2123                         goto gen_method;
2124
2125                 case ICMD_INVOKESTATIC: /* ..., [arg1, [arg2 ...]] ==> ...            */
2126                 case ICMD_INVOKESPECIAL:/* ..., objectref, [arg1, [arg2 ...]] ==> ... */
2127                 case ICMD_INVOKEVIRTUAL:/* op1 = arg count, val.a = method pointer    */
2128                 case ICMD_INVOKEINTERFACE:
2129
2130                         REPLACEMENT_POINT_INVOKE(cd, iptr);
2131
2132                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2133                                 lm = NULL;
2134                                 um = iptr->sx.s23.s3.um;
2135                                 md = um->methodref->parseddesc.md;
2136                         }
2137                         else {
2138                                 lm = iptr->sx.s23.s3.fmiref->p.method;
2139                                 um = NULL;
2140                                 md = lm->parseddesc;
2141                         }
2142
2143 gen_method:
2144                         s3 = md->paramcount;
2145
2146                         MCODECHECK((s3 << 2) + 128);
2147
2148                         /* copy arguments to registers or stack location */
2149
2150                         for (s3 = s3 - 1; s3 >= 0; s3--) {
2151                                 var = VAR(iptr->sx.s23.s2.args[s3]);
2152                                 d   = md->params[s3].regoff;
2153
2154                                 if (var->flags & PREALLOC)
2155                                         continue;
2156
2157                                 if (IS_INT_LNG_TYPE(var->type)) {
2158                                         if (!md->params[s3].inmemory) {
2159                                                 s1 = emit_load(jd, iptr, var, d);
2160                                                 M_LNGMOVE(s1, d);
2161                                         }
2162                                         else {
2163                                                 s1 = emit_load(jd, iptr, var, REG_ITMP1);
2164                                                 M_LST(s1, REG_SP, d);
2165                                         }
2166                                 }
2167                                 else {
2168                                         if (!md->params[s3].inmemory) {
2169                                                 s1 = emit_load(jd, iptr, var, d);
2170                                                 M_FLTMOVE(s1, d);
2171                                         }
2172                                         else {
2173                                                 s1 = emit_load(jd, iptr, var, REG_FTMP1);
2174                                                 M_DST(s1, REG_SP, d);
2175                                         }
2176                                 }
2177                         }
2178
2179                         switch (iptr->opc) {
2180                         case ICMD_BUILTIN:
2181                                 disp = dseg_add_functionptr(cd, bte->fp);
2182                                 M_ALD(REG_PV, REG_PV, disp);
2183                                 M_ALD(REG_PV, REG_PV, 0);       /* TOC */
2184
2185                                 /* generate the actual call */
2186                                 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2187                                 M_MTCTR(REG_PV);
2188                                 M_JSR;
2189                                 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2190                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2191                                 M_MFLR(REG_ITMP1);
2192                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2193
2194                                 emit_exception_check(cd, iptr);
2195                                 break;
2196
2197
2198                         case ICMD_INVOKESPECIAL:
2199                                 emit_nullpointer_check(cd, iptr, REG_A0);
2200                                 /* fall through */
2201
2202                         case ICMD_INVOKESTATIC:
2203                                 if (lm == NULL) {
2204                                         disp = dseg_add_unique_address(cd, um);
2205
2206                                         codegen_addpatchref(cd, PATCHER_invokestatic_special,
2207                                                                                 um, disp);
2208                                 } else {
2209                                         disp = dseg_add_address(cd, lm->stubroutine);
2210                                 }
2211                                 M_ALD(REG_PV, REG_PV, disp);
2212
2213                                 /* generate the actual call */
2214
2215                                 M_MTCTR(REG_PV);
2216                                 M_JSR;
2217                                 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2218                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2219                                 M_MFLR(REG_ITMP1);
2220                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2221
2222                                 break;
2223                         case ICMD_INVOKEVIRTUAL:
2224                                 if (lm == NULL) {
2225                                         codegen_addpatchref(cd, PATCHER_invokevirtual, um, 0);
2226                                         s1 = 0;
2227                                 } else {
2228                                         s1 = OFFSET(vftbl_t, table[0]) +
2229                                                 sizeof(methodptr) * lm->vftblindex;
2230                                 }
2231
2232                                 /* implicit null-pointer check */
2233                                 M_ALD(REG_METHODPTR, REG_A0, OFFSET(java_objectheader, vftbl));
2234                                 M_ALD(REG_PV, REG_METHODPTR, s1);
2235
2236                                 /* generate the actual call */
2237
2238                                 M_MTCTR(REG_PV);
2239                                 M_JSR;
2240                                 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2241                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2242                                 M_MFLR(REG_ITMP1);
2243                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2244                                 break;
2245
2246                         case ICMD_INVOKEINTERFACE:
2247                                 if (lm == NULL) {
2248                                         codegen_addpatchref(cd, PATCHER_invokeinterface, um, 0);
2249
2250                                         s1 = 0;
2251                                         s2 = 0;
2252
2253                                 } else {
2254                                         s1 = OFFSET(vftbl_t, interfacetable[0]) -
2255                                                 sizeof(methodptr*) * lm->class->index;
2256
2257                                         s2 = sizeof(methodptr) * (lm - lm->class->methods);
2258                                 }
2259
2260                                 /* implicit null-pointer check */
2261                                 M_ALD(REG_METHODPTR, REG_A0, OFFSET(java_objectheader, vftbl));
2262                                 M_ALD(REG_METHODPTR, REG_METHODPTR, s1);
2263                                 M_ALD(REG_PV, REG_METHODPTR, s2);
2264
2265                                 /* generate the actual call */
2266
2267                                 M_MTCTR(REG_PV);
2268                                 M_JSR;
2269                                 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2270                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2271                                 M_MFLR(REG_ITMP1);
2272                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2273
2274                                 break;
2275                         }
2276                         /* store return value */
2277
2278                         d = md->returntype.type;
2279
2280                         if (d != TYPE_VOID) {
2281                                 if (IS_INT_LNG_TYPE(d)) {
2282                                         s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2283                                         M_MOV(REG_RESULT, s1);
2284                                 }
2285                                 else {
2286                                         s1 = codegen_reg_of_dst(jd, iptr, REG_FRESULT);
2287                                         M_FLTMOVE(REG_FRESULT, s1);
2288                                 }
2289                                 emit_store_dst(jd, iptr, s1);
2290                         }
2291                         break;
2292
2293                 case ICMD_CHECKCAST:  /* ..., objectref ==> ..., objectref            */
2294                                       /* val.a: (classinfo*) superclass               */
2295
2296                         /*  superclass is an interface:
2297                          *
2298                          *  OK if ((sub == NULL) ||
2299                          *         (sub->vftbl->interfacetablelength > super->index) &&
2300                          *         (sub->vftbl->interfacetable[-super->index] != NULL));
2301                          *
2302                          *  superclass is a class:
2303                          *
2304                          *  OK if ((sub == NULL) || (0
2305                          *         <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2306                          *         super->vftbl->diffvall));
2307                          */
2308
2309                         if (!(iptr->flags.bits & INS_FLAG_ARRAY)) {
2310                                 /* object type cast-check */
2311
2312                                 classinfo *super;
2313                                 s4         superindex;
2314
2315                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2316                                         super      = NULL;
2317                                         superindex = 0;
2318                                 }
2319                                 else {
2320                                         super      = iptr->sx.s23.s3.c.cls;
2321                                         superindex = super->index;
2322                                 }
2323
2324                                 if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2325                                         CODEGEN_CRITICAL_SECTION_NEW;
2326                                 }
2327
2328                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2329
2330                                 /* if class is not resolved, check which code to call */
2331
2332                                 if (super == NULL) {
2333                                         M_TST(s1);
2334                                         emit_label_beq(cd, BRANCH_LABEL_1);
2335                                         disp = dseg_add_unique_s4(cd, 0);                     /* super->flags */
2336
2337                                         codegen_addpatchref(cd,
2338                                                                                 PATCHER_checkcast_instanceof_flags,
2339                                                                                 iptr->sx.s23.s3.c.ref,
2340                                                                                 disp);
2341
2342                                         M_ILD(REG_ITMP2, REG_PV, disp);
2343                                         M_AND_IMM(REG_ITMP2, ACC_INTERFACE, REG_ITMP2);
2344
2345                                         emit_label_beq(cd, BRANCH_LABEL_2);
2346                                 }
2347
2348                                 /* interface checkcast code */
2349
2350                                 if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2351                                         if (super == NULL) {
2352                                                 codegen_addpatchref(cd,
2353                                                                                         PATCHER_checkcast_interface,
2354                                                                                         iptr->sx.s23.s3.c.ref,
2355                                                                                         0);
2356                                         } else {
2357                                                 M_TST(s1);
2358                                                 emit_label_beq(cd, BRANCH_LABEL_3);
2359                                         }
2360
2361                                         M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2362                                         M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, interfacetablelength));
2363                                         M_LDATST(REG_ITMP3, REG_ITMP3, -superindex);
2364                                         emit_classcast_check(cd, iptr, BRANCH_LE, REG_ITMP3, s1);
2365                                         M_ALD(REG_ITMP3, REG_ITMP2,
2366                                                   OFFSET(vftbl_t, interfacetable[0]) -
2367                                                   superindex * sizeof(methodptr*));
2368                                         M_TST(REG_ITMP3);
2369                                         emit_classcast_check(cd, iptr, BRANCH_EQ, REG_ITMP3, s1);
2370
2371                                         if (super == NULL)      {
2372                                                 emit_label_br(cd, BRANCH_LABEL_4);
2373                                         } else  {
2374                                                 emit_label(cd, BRANCH_LABEL_3);
2375                                         }
2376                                 }
2377
2378                                 /* class checkcast code */
2379
2380                                 if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2381                                         if (super == NULL) {
2382                                                 emit_label(cd, BRANCH_LABEL_2);
2383
2384                                                 disp = dseg_add_unique_address(cd, NULL);
2385                                                 codegen_addpatchref(cd, PATCHER_checkcast_class,
2386                                                                                         iptr->sx.s23.s3.c.ref,
2387                                                                                         disp);
2388                                         } else {
2389                                                 disp = dseg_add_address(cd, super->vftbl);
2390                                                 M_TST(s1);
2391                                                 emit_label_beq(cd, BRANCH_LABEL_5);
2392                                         }
2393
2394                                         M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2395
2396                                         CODEGEN_CRITICAL_SECTION_START;
2397
2398                                         M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2399                                         M_ALD(REG_ITMP2, REG_PV, disp);
2400                                         if (s1 != REG_ITMP1) {
2401                                                 M_ILD(REG_ITMP1, REG_ITMP2, OFFSET(vftbl_t, baseval));
2402                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2403
2404                                                 CODEGEN_CRITICAL_SECTION_END;
2405
2406                                                 M_SUB(REG_ITMP3, REG_ITMP1, REG_ITMP3);
2407                                                 M_EXTSW(REG_ITMP3, REG_ITMP3);
2408                                         } else {
2409                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, baseval));
2410                                                 M_SUB(REG_ITMP3, REG_ITMP2, REG_ITMP3);
2411                                                 M_EXTSW(REG_ITMP3, REG_ITMP3);
2412                                                 M_ALD(REG_ITMP2, REG_PV, disp);
2413                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2414
2415                                                 CODEGEN_CRITICAL_SECTION_END;
2416
2417                                         }
2418                                         M_CMPU(REG_ITMP3, REG_ITMP2);
2419                                         emit_classcast_check(cd, iptr, BRANCH_GT, REG_ITMP3, s1);
2420
2421                                         if (super != NULL)
2422                                                 emit_label(cd, BRANCH_LABEL_5);
2423                                 }
2424
2425                                 if (super == NULL) {
2426                                         emit_label(cd, BRANCH_LABEL_1);
2427                                         emit_label(cd, BRANCH_LABEL_4);
2428                                 }
2429                                 d = codegen_reg_of_dst(jd, iptr, s1);
2430
2431                         } else {
2432                                 /* array type cast-check */
2433
2434                                 s1 = emit_load_s1(jd, iptr, REG_A0);
2435                                 M_INTMOVE(s1, REG_A0);
2436
2437
2438                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2439                                         disp = dseg_add_unique_address(cd, NULL);
2440                                         codegen_addpatchref(cd, PATCHER_builtin_arraycheckcast,
2441                                                                                 iptr->sx.s23.s3.c.ref,
2442                                                                                 disp);
2443                                 } else {
2444                                         disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2445                                 }
2446
2447                                 M_ALD(REG_A1, REG_PV, disp);
2448                                 disp = dseg_add_functionptr(cd, BUILTIN_arraycheckcast);
2449                                 M_ALD(REG_ITMP2, REG_PV, disp);
2450                                 M_ALD(REG_ITMP2, REG_ITMP2, 0); /* TOC */
2451                                 M_MTCTR(REG_ITMP2);
2452                                 M_JSR;
2453                                 M_TST(REG_RESULT);
2454                                 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_RESULT, s1);
2455
2456                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2457                                 d = codegen_reg_of_dst(jd, iptr, s1);
2458                         }
2459                         M_INTMOVE(s1, d);
2460                         emit_store_dst(jd, iptr, d);
2461                         break;
2462
2463
2464                 case ICMD_INSTANCEOF: /* ..., objectref ==> ..., intresult            */
2465                                       /* val.a: (classinfo*) superclass               */
2466
2467                         /*  superclass is an interface:
2468                          *
2469                          *  return (sub != NULL) &&
2470                          *         (sub->vftbl->interfacetablelength > super->index) &&
2471                          *         (sub->vftbl->interfacetable[-super->index] != NULL);
2472                          *
2473                          *  superclass is a class:
2474                          *
2475                          *  return ((sub != NULL) && (0
2476                          *          <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2477                          *          super->vftbl->diffvall));
2478                          */
2479
2480                         {
2481                         classinfo *super;
2482                         s4         superindex;
2483
2484                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2485                                 super      = NULL;
2486                                 superindex = 0;
2487                         }
2488                         else {
2489                                 super      = iptr->sx.s23.s3.c.cls;
2490                                 superindex = super->index;
2491                         }
2492
2493                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2494                                 CODEGEN_CRITICAL_SECTION_NEW;
2495                         }
2496
2497                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2498                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
2499                         if (s1 == d) {
2500                                 M_MOV(s1, REG_ITMP1);
2501                                 s1 = REG_ITMP1;
2502                         }
2503
2504                         M_CLR(d);
2505
2506                         /* if class is not resolved, check which code to call */
2507
2508                         if (super == NULL) {
2509                                 M_TST(s1);
2510                                 emit_label_beq(cd, BRANCH_LABEL_1);
2511                                 disp = dseg_add_unique_s4(cd, 0);                     /* super->flags */
2512
2513                                 codegen_addpatchref(cd, PATCHER_checkcast_instanceof_flags,
2514                                                                         iptr->sx.s23.s3.c.ref, disp);
2515
2516                                 M_ILD(REG_ITMP3, REG_PV, disp);
2517                                 M_AND_IMM(REG_ITMP3, ACC_INTERFACE, REG_ITMP3);
2518                                 emit_label_beq(cd, BRANCH_LABEL_2);
2519                         }
2520
2521                         /* interface instanceof code */
2522
2523                         if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2524                                 if (super == NULL) {
2525                                         codegen_addpatchref(cd,
2526                                                                                 PATCHER_instanceof_interface,
2527                                                                                 iptr->sx.s23.s3.c.ref, 0);
2528
2529                                 } else {
2530                                         M_TST(s1);
2531                                         emit_label_beq(cd, BRANCH_LABEL_3);
2532                                 }
2533
2534                                 M_ALD(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
2535                                 M_ILD(REG_ITMP3, REG_ITMP1, OFFSET(vftbl_t, interfacetablelength));
2536                                 M_LDATST(REG_ITMP3, REG_ITMP3, -superindex);
2537                                 M_BLE(4);
2538                                 M_ALD(REG_ITMP1, REG_ITMP1,
2539                                           OFFSET(vftbl_t, interfacetable[0]) -
2540                                           superindex * sizeof(methodptr*));
2541                                 M_TST(REG_ITMP1);
2542                                 M_BEQ(1);
2543                                 M_IADD_IMM(REG_ZERO, 1, d);
2544
2545                                 if (super == NULL)      {
2546                                         emit_label_br(cd, BRANCH_LABEL_4);
2547                                 } else  {
2548                                         emit_label(cd, BRANCH_LABEL_3);
2549                                 }
2550                         }
2551
2552                         /* class instanceof code */
2553
2554                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2555
2556                                 if (super == NULL) {
2557                                         emit_label(cd, BRANCH_LABEL_2);
2558
2559                                         disp = dseg_add_unique_address(cd, NULL);
2560                                         codegen_addpatchref(cd, PATCHER_instanceof_class,
2561                                                                                 iptr->sx.s23.s3.c.ref,
2562                                                                                 disp);
2563
2564                                 } else {
2565                                         disp = dseg_add_address(cd, super->vftbl);
2566                                         M_TST(s1);
2567                                         emit_label_beq(cd, BRANCH_LABEL_5);
2568                                 }
2569
2570                                 M_ALD(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
2571                                 M_ALD(REG_ITMP2, REG_PV, disp);
2572
2573                                 CODEGEN_CRITICAL_SECTION_START;
2574
2575                                 M_ILD(REG_ITMP1, REG_ITMP1, OFFSET(vftbl_t, baseval));
2576                                 M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2577                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2578
2579                                 CODEGEN_CRITICAL_SECTION_END;
2580
2581                                 M_SUB(REG_ITMP1, REG_ITMP3, REG_ITMP1);
2582                                 M_EXTSW(REG_ITMP1, REG_ITMP1);
2583                                 M_CMPU(REG_ITMP1, REG_ITMP2);
2584                                 M_CLR(d);
2585                                 M_BGT(1);
2586                                 M_IADD_IMM(REG_ZERO, 1, d);
2587
2588                                 if (super != NULL)
2589                                         emit_label(cd, BRANCH_LABEL_5);
2590                         }
2591
2592                         if (super == NULL) {
2593                                 emit_label(cd, BRANCH_LABEL_1);
2594                                 emit_label(cd, BRANCH_LABEL_4);
2595                         }
2596
2597                         emit_store_dst(jd, iptr, d);
2598                         }
2599                         break;
2600
2601                 case ICMD_MULTIANEWARRAY:/* ..., cnt1, [cnt2, ...] ==> ..., arrayref  */
2602
2603                         /* check for negative sizes and copy sizes to stack if necessary  */
2604
2605                         MCODECHECK((iptr->s1.argcount << 2) + 128);
2606
2607                         for (s1 = iptr->s1.argcount; --s1 >= 0; ) {
2608
2609                                 var = VAR(iptr->sx.s23.s2.args[s1]);
2610
2611                                 /* copy SAVEDVAR sizes to stack */
2612
2613                                 if (!(var->flags & PREALLOC)) {
2614                                         s2 = emit_load(jd, iptr, var, REG_ITMP1);
2615 #if defined(__DARWIN__)
2616                                         M_LST(s2, REG_SP, LA_SIZE + (s1 + INT_ARG_CNT) * 8);
2617 #else
2618                                         M_LST(s2, REG_SP, LA_SIZE + (s1 + 3) * 8);
2619 #endif
2620                                 }
2621                         }
2622
2623                         /* a0 = dimension count */
2624
2625                         ICONST(REG_A0, iptr->s1.argcount);
2626
2627                         /* is patcher function set? */
2628
2629                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2630                                 disp = dseg_add_unique_address(cd, NULL);
2631
2632                                 codegen_addpatchref(cd, PATCHER_builtin_multianewarray,
2633                                                                         iptr->sx.s23.s3.c.ref, disp);
2634                         } else {
2635                                 disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2636                         }
2637
2638                         /* a1 = arraydescriptor */
2639
2640                         M_ALD(REG_A1, REG_PV, disp);
2641
2642                         /* a2 = pointer to dimensions = stack pointer */
2643
2644 #if defined(__DARWIN__)
2645                         M_LDA(REG_A2, REG_SP, LA_SIZE + INT_ARG_CNT * 8);
2646 #else
2647                         M_LDA(REG_A2, REG_SP, LA_SIZE + 3 * 8);
2648 #endif
2649
2650                         disp = dseg_add_functionptr(cd, BUILTIN_multianewarray);
2651                         M_ALD(REG_ITMP3, REG_PV, disp);
2652                         M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
2653                         M_MTCTR(REG_ITMP3);
2654                         M_JSR;
2655
2656                         /* check for exception before result assignment */
2657                         emit_exception_check(cd, iptr);
2658
2659                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2660                         M_INTMOVE(REG_RESULT, d);
2661                         emit_store_dst(jd, iptr, d);
2662                         break;
2663
2664                 default:
2665                         exceptions_throw_internalerror("Unknown ICMD %d during code generation",
2666                                                                                    iptr->opc);
2667                         return false;
2668         } /* switch */
2669
2670         } /* for instruction */
2671
2672         } /* if (bptr -> flags >= BBREACHED) */
2673         } /* for basic block */
2674
2675         dseg_createlinenumbertable(cd);
2676
2677         /* generate stubs */
2678
2679         emit_patcher_stubs(jd);
2680
2681         /* everything's ok */
2682
2683         return true;
2684 }
2685
2686
2687 /* codegen_emit_stub_compiler **************************************************
2688
2689    Emits a stub routine which calls the compiler.
2690
2691 *******************************************************************************/
2692
2693 void codegen_emit_stub_compiler(jitdata *jd)
2694 {
2695         methodinfo  *m;
2696         codegendata *cd;
2697
2698         /* get required compiler data */
2699
2700         m  = jd->m;
2701         cd = jd->cd;
2702
2703         /* code for the stub */
2704
2705         M_ALD_INTERN(REG_ITMP1, REG_PV, -2 * SIZEOF_VOID_P);
2706         M_ALD_INTERN(REG_PV, REG_PV, -3 * SIZEOF_VOID_P);
2707         M_MTCTR(REG_PV);
2708         M_RTS;
2709 }
2710
2711
2712 /* codegen_emit_stub_native ****************************************************
2713
2714    Emits a stub routine which calls a native method.
2715
2716 *******************************************************************************/
2717
2718 void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f)
2719 {
2720         methodinfo  *m;
2721         codeinfo    *code;
2722         codegendata *cd;
2723         methoddesc  *md;
2724         s4           nativeparams;
2725         s4           i, j;
2726         s4           t;
2727         s4           s1, s2, disp;
2728         s4           funcdisp;
2729
2730         /* get required compiler data */
2731
2732         m    = jd->m;
2733         code = jd->code;
2734         cd   = jd->cd;
2735
2736         /* set some variables */
2737
2738         md = m->parseddesc;
2739         nativeparams = (m->flags & ACC_STATIC) ? 2 : 1;
2740
2741         /* calculate stackframe size */
2742
2743         cd->stackframesize =
2744                 sizeof(stackframeinfo) / SIZEOF_VOID_P +
2745                 sizeof(localref_table) / SIZEOF_VOID_P +
2746                 4 +                            /* 4 stackframeinfo arguments (darwin)*/
2747                 nmd->paramcount  +
2748                 nmd->memuse;
2749
2750 /*      cd->stackframesize = (cd->stackframesize + 3) & ~3;*/ /* keep stack 16-byte aligned */
2751
2752         /* create method header */
2753
2754         (void) dseg_add_unique_address(cd, code);                      /* CodeinfoPointer */
2755         (void) dseg_add_unique_s4(cd, cd->stackframesize * 8);             /* FrameSize       */
2756         (void) dseg_add_unique_s4(cd, 0);                              /* IsSync          */
2757         (void) dseg_add_unique_s4(cd, 0);                              /* IsLeaf          */
2758         (void) dseg_add_unique_s4(cd, 0);                              /* IntSave         */
2759         (void) dseg_add_unique_s4(cd, 0);                              /* FltSave         */
2760         (void) dseg_addlinenumbertablesize(cd);
2761         (void) dseg_add_unique_s4(cd, 0);                              /* ExTableSize     */
2762
2763         /* generate code */
2764
2765         M_MFLR(REG_ZERO);
2766         M_AST_INTERN(REG_ZERO, REG_SP, LA_LR_OFFSET);
2767         M_STDU(REG_SP, REG_SP, -(cd->stackframesize * 8));
2768
2769 #if !defined(NDEBUG)
2770         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
2771                 emit_verbosecall_enter(jd);
2772 #endif
2773
2774         /* get function address (this must happen before the stackframeinfo) */
2775
2776         funcdisp = dseg_add_functionptr(cd, f);
2777
2778 #if !defined(WITH_STATIC_CLASSPATH)
2779         if (f == NULL) {
2780                 codegen_addpatchref(cd, PATCHER_resolve_native, m, funcdisp);
2781         }
2782 #endif
2783
2784         /* save integer and float argument registers */
2785
2786         j = 0;
2787
2788         for (i = 0; i < md->paramcount; i++) {
2789                 t = md->paramtypes[i].type;
2790
2791                 if (IS_INT_LNG_TYPE(t)) {
2792                         if (!md->params[i].inmemory) {
2793                                 s1 = md->params[i].regoff;
2794                                 M_LST(s1, REG_SP, LA_SIZE + PA_SIZE + 4*8 + j * 8);
2795                                 j++;
2796                         }
2797                 }
2798         }
2799
2800         for (i = 0; i < md->paramcount; i++) {
2801                 if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
2802                         if (!md->params[i].inmemory) {
2803                                 s1 = md->params[i].regoff;
2804                                 M_DST(s1, REG_SP, LA_SIZE + PA_SIZE + 4*8 + j * 8);
2805                                 j++;
2806                         }
2807                 }
2808         }
2809
2810         /* create native stack info */
2811
2812         M_AADD_IMM(REG_SP, cd->stackframesize * 8, REG_A0);
2813         M_MOV(REG_PV, REG_A1);
2814         M_AADD_IMM(REG_SP, cd->stackframesize * 8, REG_A2);
2815         M_ALD(REG_A3, REG_SP, cd->stackframesize * 8 + LA_LR_OFFSET);
2816         disp = dseg_add_functionptr(cd, codegen_start_native_call);
2817
2818         M_ALD(REG_ITMP1, REG_PV, disp);
2819         M_ALD(REG_ITMP1, REG_ITMP1, 0);         /* TOC */
2820         M_MTCTR(REG_ITMP1);
2821         M_JSR;
2822
2823         /* restore integer and float argument registers */
2824
2825         j = 0;
2826
2827         for (i = 0; i < md->paramcount; i++) {
2828                 t = md->paramtypes[i].type;
2829
2830                 if (IS_INT_LNG_TYPE(t)) {
2831                         if (!md->params[i].inmemory) {
2832                                 s1 = md->params[i].regoff;
2833                                 M_LLD(s1, REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + j * 8);
2834                                 j++;
2835                         }
2836                 }
2837         }
2838
2839         for (i = 0; i < md->paramcount; i++) {
2840                 if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
2841                         if (!md->params[i].inmemory) {
2842                                 s1 = md->params[i].regoff;
2843                                 M_DLD(s1, REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + j * 8);
2844                                 j++;
2845                         }
2846                 }
2847         }
2848
2849         /* copy or spill arguments to new locations */
2850
2851         for (i = md->paramcount - 1, j = i + nativeparams; i >= 0; i--, j--) {
2852                 t = md->paramtypes[i].type;
2853
2854                 if (IS_INT_LNG_TYPE(t)) {
2855                         if (!md->params[i].inmemory) {
2856                                 s1 = md->params[i].regoff;
2857                                 s2 = nmd->params[j].regoff;
2858
2859                                 if (!nmd->params[j].inmemory)
2860                                         M_INTMOVE(s1, s2);
2861                                 else
2862                                         M_LST(s1, REG_SP, s2);
2863                         }
2864                         else {
2865                                 s1 = md->params[i].regoff + cd->stackframesize * 8;
2866                                 s2 = nmd->params[j].regoff;
2867
2868                                 M_LLD(REG_ITMP1, REG_SP, s1);
2869                                 M_LST(REG_ITMP1, REG_SP, s2);
2870                         }
2871                 }
2872                 else {
2873                         /* We only copy spilled float arguments, as the float
2874                            argument registers keep unchanged. */
2875
2876                         if (md->params[i].inmemory) {
2877                                 s1 = md->params[i].regoff + cd->stackframesize * 8;
2878                                 s2 = nmd->params[j].regoff;
2879
2880                                 M_DLD(REG_FTMP1, REG_SP, s1);
2881
2882                                 if (IS_2_WORD_TYPE(t))
2883                                         M_DST(REG_FTMP1, REG_SP, s2);
2884                                 else
2885                                         M_FST(REG_FTMP1, REG_SP, s2 + 4);
2886                         }
2887                 }
2888         }
2889
2890         /* put class into second argument register */
2891
2892         if (m->flags & ACC_STATIC) {
2893                 disp = dseg_add_unique_address(cd, m->class);
2894                 M_ALD(REG_A1, REG_PV, disp);
2895         }
2896
2897         /* put env into first argument register */
2898
2899         disp = dseg_add_unique_address(cd, _Jv_env);
2900         M_ALD(REG_A0, REG_PV, disp);
2901
2902         /* generate the actual native call */
2903         /* native functions have a different TOC for sure */
2904
2905         M_AST(REG_TOC, REG_SP, 40);     /* save old TOC */
2906         M_ALD(REG_ITMP3, REG_PV, funcdisp);
2907         M_ALD(REG_TOC, REG_ITMP3, 8);   /* load TOC from func. descriptor */
2908         M_ALD(REG_ITMP3, REG_ITMP3, 0);
2909         M_MTCTR(REG_ITMP3);
2910         M_JSR;
2911         M_ALD(REG_TOC, REG_SP, 40);     /* restore TOC */
2912
2913         /* save return value */
2914
2915         if (md->returntype.type != TYPE_VOID) {
2916                 if (IS_INT_LNG_TYPE(md->returntype.type)) {
2917                         M_LST(REG_RESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
2918                 }
2919                 else {
2920                         M_DST(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
2921                 }
2922         }
2923
2924 #if !defined(NDEBUG)
2925         /* print call trace */
2926
2927         if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
2928                 emit_verbosecall_exit(jd);
2929         }
2930 #endif
2931
2932         /* remove native stackframe info */
2933
2934         M_AADD_IMM(REG_SP, cd->stackframesize * 8, REG_A0);
2935         disp = dseg_add_functionptr(cd, codegen_finish_native_call);
2936         M_ALD(REG_ITMP1, REG_PV, disp);
2937         M_ALD(REG_ITMP1, REG_ITMP1, 0); /* XXX what about TOC? */
2938         M_MTCTR(REG_ITMP1);
2939         M_JSR;
2940         M_MOV(REG_RESULT, REG_ITMP1_XPTR);
2941
2942         /* restore return value */
2943
2944         if (md->returntype.type != TYPE_VOID) {
2945                 if (IS_INT_LNG_TYPE(md->returntype.type)) {
2946                         M_LLD(REG_RESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
2947                 }
2948                 else {
2949 /*                      if (IS_2_WORD_TYPE(md->returntype.type)) */
2950                                 M_DLD(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
2951 /*                      else
2952                                 M_FLD(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8); F XXX
2953                                 */
2954                 }
2955         }
2956
2957         M_ALD(REG_ITMP2_XPC, REG_SP, cd->stackframesize * 8 + LA_LR_OFFSET);
2958         M_MTLR(REG_ITMP2_XPC);
2959         M_LDA(REG_SP, REG_SP, cd->stackframesize * 8); /* remove stackframe           */
2960
2961         /* check for exception */
2962
2963         M_TST(REG_ITMP1_XPTR);
2964         M_BNE(1);                           /* if no exception then return        */
2965
2966         M_RET;
2967
2968         /* handle exception */
2969
2970         M_LADD_IMM(REG_ITMP2_XPC, -4, REG_ITMP2_XPC);  /* exception address       */
2971
2972         disp = dseg_add_functionptr(cd, asm_handle_nat_exception);
2973         M_ALD(REG_ITMP3, REG_PV, disp);
2974         M_MTCTR(REG_ITMP3);
2975         M_RTS;
2976
2977         /* generate patcher stub call code */
2978
2979         emit_patcher_stubs(jd);
2980 }
2981
2982
2983
2984
2985 /*
2986  * These are local overrides for various environment variables in Emacs.
2987  * Please do not remove this and leave it at the end of the file, where
2988  * Emacs will automagically detect them.
2989  * ---------------------------------------------------------------------
2990  * Local variables:
2991  * mode: c
2992  * indent-tabs-mode: t
2993  * c-basic-offset: 4
2994  * tab-width: 4
2995  * End:
2996  * vim:noexpandtab:sw=4:ts=4:
2997  */