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 8318 2007-08-16 10:05:34Z michi $
  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/localref.h"
  47 #include "native/native.h"
  48
  49 #include "threads/lock-common.h"
  50
  51 #include "vm/builtin.h"
  52 #include "vm/exceptions.h"
  53 #include "vm/global.h"
  54 #include "vm/stringlocal.h"
  55 #include "vm/vm.h"
  56
  57 #include "vm/jit/abi.h"
  58 #include "vm/jit/abi-asm.h"
  59 #include "vm/jit/md.h"
  60 #include "vm/jit/asmpart.h"
  61 #include "vm/jit/codegen-common.h"
  62 #include "vm/jit/dseg.h"
  63 #include "vm/jit/emit-common.h"
  64 #include "vm/jit/jit.h"
  65 #include "vm/jit/parse.h"
  66 #include "vm/jit/patcher.h"
  67 #include "vm/jit/reg.h"
  68 #include "vm/jit/replace.h"
  69 #include "vm/jit/stacktrace.h"
  70
  71 #include "vmcore/loader.h"
  72 #include "vmcore/options.h"
  73
  74 #if defined(ENABLE_LSRA)
  75 # include "vm/jit/allocator/lsra.h"
  76 #endif
  77
  78
  79 /* codegen_emit ****************************************************************
  80
  81    Generates machine code.
  82
  83 *******************************************************************************/
  84
  85 bool codegen_emit(jitdata *jd)
  86 {
  87         methodinfo         *m;
  88         codeinfo           *code;
  89         codegendata        *cd;
  90         registerdata       *rd;
  91         s4                  len, s1, s2, s3, d, disp;
  92         ptrint              a;
  93         varinfo            *var;
  94         basicblock         *bptr;
  95         instruction        *iptr;
  96         exception_entry    *ex;
  97         u2                  currentline;
  98         methodinfo         *lm;             /* local methodinfo for ICMD_INVOKE*  */
  99         unresolved_method  *um;
 100         builtintable_entry *bte;
 101         methoddesc         *md;
 102         s4                  fieldtype;
 103         s4                  varindex;
 104         unresolved_field   *uf;
 105         fieldinfo          *fi;
 106
 107         /* get required compiler data */
 108
 109         m    = jd->m;
 110         code = jd->code;
 111         cd   = jd->cd;
 112         rd   = jd->rd;
 113
 114         /* prevent compiler warnings */
 115
 116         d   = 0;
 117         lm  = NULL;
 118         um  = NULL;
 119         bte = NULL;
 120         uf  = NULL;
 121
 122         {
 123         s4 i, p, t, l;
 124         s4 savedregs_num;
 125
 126         savedregs_num = 0;
 127
 128         /* space to save used callee saved registers */
 129
 130         savedregs_num += (INT_SAV_CNT - rd->savintreguse);
 131         savedregs_num += (FLT_SAV_CNT - rd->savfltreguse);
 132
 133         cd->stackframesize = rd->memuse + savedregs_num;
 134
 135 #if defined(ENABLE_THREADS)
 136         /* space to save argument of monitor_enter and Return Values to survive */
 137     /* monitor_exit. The stack position for the argument can not be shared  */
 138         /* with place to save the return register on PPC64, since both values     */
 139         /* reside in R3 */
 140         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
 141                 /* reserve 2 slots for long/double return values for monitorexit */
 142                 cd->stackframesize += 2;
 143         }
 144
 145 #endif
 146
 147         /* create method header */
 148
 149         /* align stack to 16-bytes */
 150
 151 /* FIXME */
 152 /*      if (!m->isleafmethod || opt_verbosecall) */
 153 /*              stackframesize = (stackframesize + 3) & ~3;
 154 */
 155 /*      else if (m->isleafmethod && (stackframesize == LA_WORD_SIZE)) */
 156 /*              stackframesize = 0; */
 157
 158         (void) dseg_add_unique_address(cd, code);                      /* CodeinfoPointer */
 159         (void) dseg_add_unique_s4(cd, cd->stackframesize * 8);             /* FrameSize       */
 160
 161 #if defined(ENABLE_THREADS)
 162         /* IsSync contains the offset relative to the stack pointer for the
 163            argument of monitor_exit used in the exception handler. Since the
 164            offset could be zero and give a wrong meaning of the flag it is
 165            offset by one.
 166         */
 167
 168         if (checksync && (m->flags & ACC_SYNCHRONIZED))
 169                 (void) dseg_add_unique_s4(cd, (rd->memuse + 1) * 8);       /* IsSync          */
 170         else
 171 #endif
 172                 (void) dseg_add_unique_s4(cd, 0);                          /* IsSync          */
 173
 174         (void) dseg_add_unique_s4(cd, jd->isleafmethod);                /* IsLeaf          */
 175         (void) dseg_add_unique_s4(cd, INT_SAV_CNT - rd->savintreguse); /* IntSave         */
 176         (void) dseg_add_unique_s4(cd, FLT_SAV_CNT - rd->savfltreguse); /* FltSave         */
 177
 178         dseg_addlinenumbertablesize(cd);
 179
 180         (void) dseg_add_unique_s4(cd, jd->exceptiontablelength);       /* ExTableSize     */
 181
 182         /* create exception table */
 183
 184         for (ex = jd->exceptiontable; ex != NULL; ex = ex->down) {
 185                 dseg_add_target(cd, ex->start);
 186                 dseg_add_target(cd, ex->end);
 187                 dseg_add_target(cd, ex->handler);
 188                 (void) dseg_add_unique_address(cd, ex->catchtype.any);
 189         }
 190
 191         /* create stack frame (if necessary) */
 192
 193         if (!jd->isleafmethod) {
 194                 M_MFLR(REG_ZERO);
 195                 M_AST(REG_ZERO, REG_SP, LA_LR_OFFSET);
 196         }
 197
 198         if (cd->stackframesize)
 199                 M_STDU(REG_SP, REG_SP, -cd->stackframesize * 8);
 200
 201         /* save return address and used callee saved registers */
 202
 203         p = cd->stackframesize;
 204         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
 205                 p--; M_LST(rd->savintregs[i], REG_SP, p * 8);
 206         }
 207         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
 208                 p --; M_DST(rd->savfltregs[i], REG_SP, p * 8);
 209         }
 210
 211         /* take arguments out of register or stack frame */
 212
 213         md = m->parseddesc;
 214
 215         for (p = 0, l = 0; p < md->paramcount; p++) {
 216                 t = md->paramtypes[p].type;
 217                 varindex = jd->local_map[l*5 + t];
 218                 l++;
 219                 if (IS_2_WORD_TYPE(t))    /* increment local counter for 2 word types */
 220                         l++;
 221                 if (varindex == UNUSED)
 222                         continue;
 223
 224                 var = VAR(varindex);
 225                 s1  = md->params[p].regoff;
 226
 227                 if (IS_INT_LNG_TYPE(t)) {
 228                         if (!md->params[p].inmemory) {
 229                                 if (!IS_INMEMORY(var->flags))
 230                                         M_INTMOVE(s1, var->vv.regoff);
 231                                 else
 232                                         M_LST(s1, REG_SP, var->vv.regoff);
 233                         }
 234                         else {
 235                                 if (!IS_INMEMORY(var->flags))
 236                                         M_LLD(var->vv.regoff, REG_SP, cd->stackframesize * 8 + s1);
 237                                 else
 238                                         var->vv.regoff = cd->stackframesize * 8 + s1;
 239                         }
 240                 }
 241                 else {
 242                         if (!md->params[p].inmemory) {
 243                                 if (!IS_INMEMORY(var->flags))
 244                                         M_FLTMOVE(s1, var->vv.regoff);
 245                                 else
 246                                         M_DST(s1, REG_SP, var->vv.regoff);
 247                         }
 248                         else {
 249                                 if (!(var->flags & INMEMORY)) {
 250                                         if (IS_2_WORD_TYPE(t))
 251                                                 M_DLD(var->vv.regoff, REG_SP, cd->stackframesize * 8 + s1);
 252                                         else
 253                                                 M_DLD(var->vv.regoff, REG_SP, cd->stackframesize * 8 + s1);
 254                                 }
 255                                 else
 256                                         var->vv.regoff = cd->stackframesize * 8 + s1;
 257                         }
 258                 }
 259         }
 260
 261         /* save monitorenter argument */
 262
 263 #if defined(ENABLE_THREADS)
 264
 265         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
 266
 267                 /* stackoffset for argument used for LOCK_monitor_exit */
 268                 s1 = rd->memuse;
 269
 270 #if !defined (NDEBUG)
 271                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 272                         M_AADD_IMM(REG_SP, -((LA_SIZE_IN_POINTERS + PA_SIZE_IN_POINTERS + ARG_CNT) * 8), REG_SP);
 273
 274                         for (p = 0; p < INT_ARG_CNT; p++)
 275                                 M_LST(abi_registers_integer_argument[p], REG_SP, LA_SIZE + PA_SIZE + p * 8);
 276
 277                         for (p = 0; p < FLT_ARG_CNT; p++)
 278                                 M_DST(abi_registers_float_argument[p], REG_SP, LA_SIZE + PA_SIZE + (INT_ARG_CNT + p) * 8);
 279
 280                         /* used for LOCK_monitor_exit, adopt size because we created another stackframe */
 281                         s1 += (LA_SIZE_IN_POINTERS + PA_SIZE_IN_POINTERS + ARG_CNT);
 282                 }
 283 #endif
 284
 285                 p = dseg_add_functionptr(cd, LOCK_monitor_enter);
 286                 M_ALD(REG_ITMP3, REG_PV, p);
 287                 M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
 288                 M_MTCTR(REG_ITMP3);
 289
 290                 /* get or test the lock object */
 291
 292                 if (m->flags & ACC_STATIC) {
 293                         p = dseg_add_address(cd, &m->class->object.header);
 294                         M_ALD(REG_A0, REG_PV, p);
 295                 }
 296                 else {
 297                         M_TST(REG_A0);
 298                         M_BNE(1);
 299                         M_ALD_INTERN(REG_ZERO, REG_ZERO, EXCEPTION_HARDWARE_NULLPOINTER);
 300                 }
 301
 302                 M_AST(REG_A0, REG_SP, s1 * 8);                      /* rd->memuse * 8 */
 303                 M_JSR;
 304
 305 #if !defined(NDEBUG)
 306                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 307                         for (p = 0; p < INT_ARG_CNT; p++)
 308                                 M_LLD(abi_registers_integer_argument[p], REG_SP, LA_SIZE + PA_SIZE + p * 8);
 309
 310                         for (p = 0; p < FLT_ARG_CNT; p++)
 311                                 M_DLD(abi_registers_float_argument[p], REG_SP, LA_SIZE + PA_SIZE + (INT_ARG_CNT + p) * 8);
 312
 313                         M_AADD_IMM(REG_SP, (LA_SIZE_IN_POINTERS + PA_SIZE_IN_POINTERS + ARG_CNT) * 8, REG_SP);
 314                 }
 315 #endif
 316         }
 317 #endif
 318
 319         /* call trace function */
 320 #if !defined (NDEBUG)
 321         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
 322                 emit_verbosecall_enter(jd);
 323 #endif
 324
 325         }
 326
 327         /* end of header generation */
 328
 329         /* create replacement points */
 330
 331         REPLACEMENT_POINTS_INIT(cd, jd);
 332
 333         /* walk through all basic blocks */
 334
 335         for (bptr = jd->basicblocks; bptr != NULL; bptr = bptr->next) {
 336
 337                 bptr->mpc = (s4) (cd->mcodeptr - cd->mcodebase);
 338
 339                 if (bptr->flags >= BBREACHED) {
 340
 341                 /* branch resolving */
 342                 codegen_resolve_branchrefs(cd, bptr);
 343
 344                 /* handle replacement points */
 345
 346                 REPLACEMENT_POINT_BLOCK_START(cd, bptr);
 347
 348                 /* copy interface registers to their destination */
 349
 350                 len = bptr->indepth;
 351                 MCODECHECK(128+len);
 352
 353 #if defined(ENABLE_LSRA)
 354                 if (opt_lsra) {
 355                         while (len) {
 356                                 len--;
 357                                 var = VAR(bptr->invars[len]);
 358                                 if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 359                                         /* d = reg_of_var(m, var, REG_ITMP1); */
 360                                         if (!(var->flags & INMEMORY))
 361                                                 d = var->vv.regoff;
 362                                         else
 363                                                 d = REG_ITMP1;
 364                                         M_INTMOVE(REG_ITMP1, d);
 365                                         emit_store(jd, NULL, var, d);
 366                                 }
 367                         }
 368                 } else {
 369 #endif
 370                 while (len) {
 371                         len--;
 372                         var = VAR(bptr->invars[len]);
 373                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 374                                 d = codegen_reg_of_var(0, var, REG_ITMP1);
 375                                 M_INTMOVE(REG_ITMP1, d);
 376                                 emit_store(jd, NULL, var, d);
 377                         }
 378                         else {
 379                                 assert((var->flags & INOUT));
 380                         }
 381                 }
 382
 383 #if defined(ENABLE_LSRA)
 384                 }
 385 #endif
 386                 /* walk through all instructions */
 387
 388                 len = bptr->icount;
 389                 currentline = 0;
 390
 391                 for (iptr = bptr->iinstr; len > 0; len--, iptr++) {
 392                         if (iptr->line != currentline) {
 393                                 dseg_addlinenumber(cd, iptr->line);
 394                                 currentline = iptr->line;
 395                         }
 396
 397                         MCODECHECK(128);   /* an instruction usually needs < 64 words      */
 398
 399                 switch (iptr->opc) {
 400                 case ICMD_NOP:        /* ...  ==> ...                                 */
 401                 case ICMD_POP:        /* ..., value  ==> ...                          */
 402                 case ICMD_POP2:       /* ..., value, value  ==> ...                   */
 403                         break;
 404
 405                 case ICMD_INLINE_START:
 406
 407                         REPLACEMENT_POINT_INLINE_START(cd, iptr);
 408                         break;
 409
 410                 case ICMD_INLINE_BODY:
 411
 412                         REPLACEMENT_POINT_INLINE_BODY(cd, iptr);
 413                         dseg_addlinenumber_inline_start(cd, iptr);
 414                         dseg_addlinenumber(cd, iptr->line);
 415                         break;
 416
 417                 case ICMD_INLINE_END:
 418
 419                         dseg_addlinenumber_inline_end(cd, iptr);
 420                         dseg_addlinenumber(cd, iptr->line);
 421                         break;
 422
 423                 case ICMD_CHECKNULL:  /* ..., objectref  ==> ..., objectref           */
 424
 425                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 426                         M_TST(s1);
 427                         M_BEQ(0);
 428                         emit_nullpointer_check(cd, iptr, s1);
 429                         break;
 430
 431                 /* constant operations ************************************************/
 432
 433                 case ICMD_ICONST:     /* ...  ==> ..., constant                       */
 434
 435                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 436                         ICONST(d, iptr->sx.val.i);
 437                         emit_store_dst(jd, iptr, d);
 438                         break;
 439
 440                 case ICMD_LCONST:     /* ...  ==> ..., constant                       */
 441
 442                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 443                         LCONST(d, iptr->sx.val.l);
 444                         emit_store_dst(jd, iptr, d);
 445                         break;
 446
 447                 case ICMD_FCONST:     /* ...  ==> ..., constant                       */
 448
 449                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 450                         a = dseg_add_float(cd, iptr->sx.val.f);
 451                         M_FLD(d, REG_PV, a);
 452                         emit_store_dst(jd, iptr, d);
 453                         break;
 454
 455                 case ICMD_DCONST:     /* ...  ==> ..., constant                       */
 456
 457                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 458                         a = dseg_add_double(cd, iptr->sx.val.d);
 459                         M_DLD(d, REG_PV, a);
 460                         emit_store_dst(jd, iptr, d);
 461                         break;
 462
 463                 case ICMD_ACONST:     /* ...  ==> ..., constant                       */
 464
 465                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 466
 467                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
 468                                 disp = dseg_add_unique_address(cd, iptr->sx.val.c.ref);
 469                                 codegen_addpatchref(cd, PATCHER_aconst,
 470                                                                         iptr->sx.val.c.ref,
 471                                                                     disp);
 472                         } else  {
 473                                 disp = dseg_add_address(cd, iptr->sx.val.anyptr);
 474                         }
 475                         M_ALD(d, REG_PV, disp);
 476                         emit_store_dst(jd, iptr, d);
 477                         break;
 478
 479
 480                 /* load/store/copy/move operations ************************************/
 481
 482                 case ICMD_ILOAD:      /* ...  ==> ..., content of local variable      */
 483                 case ICMD_ALOAD:      /* s1.localindex = local variable               */
 484                 case ICMD_LLOAD:
 485                 case ICMD_FLOAD:
 486                 case ICMD_DLOAD:
 487                 case ICMD_ISTORE:     /* ..., value  ==> ...                          */
 488                 case ICMD_LSTORE:
 489                 case ICMD_FSTORE:
 490                 case ICMD_DSTORE:
 491                 case ICMD_COPY:
 492                 case ICMD_MOVE:
 493
 494                         emit_copy(jd, iptr);
 495                         break;
 496
 497                 case ICMD_ASTORE:
 498                         if (!(iptr->flags.bits & INS_FLAG_RETADDR))
 499                                 emit_copy(jd, iptr);
 500                         break;
 501
 502
 503                 /* integer operations *************************************************/
 504
 505                 case ICMD_INEG:       /* ..., value  ==> ..., - value                 */
 506                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 507                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 508                         M_NEG(s1, d);
 509                         M_EXTSW(d, d);
 510                         emit_store_dst(jd, iptr, d);
 511                         break;
 512
 513                 case ICMD_LNEG:
 514                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 515                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 516                         M_NEG(s1, d);
 517                         emit_store_dst(jd, iptr, d);
 518                         break;
 519
 520
 521                 case ICMD_I2L:        /* ..., value  ==> ..., value                   */
 522
 523                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 524                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 525                         M_INTMOVE(s1, d);
 526                         emit_store_dst(jd, iptr, d);
 527                         break;
 528
 529                 case ICMD_L2I:        /* ..., value  ==> ..., value                   */
 530
 531                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 532                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 533                         M_ISEXT(s1, d);
 534                         emit_store_dst(jd, iptr, d);
 535                         break;
 536
 537                 case ICMD_INT2BYTE:   /* ..., value  ==> ..., value                   */
 538
 539                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 540                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 541                         M_BSEXT(s1, d);
 542                         emit_store_dst(jd, iptr, d);
 543                         break;
 544
 545                 case ICMD_INT2CHAR:   /* ..., value  ==> ..., value                   */
 546
 547                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 548                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 549                         M_CZEXT(s1, d);
 550                         emit_store_dst(jd, iptr, d);
 551                         break;
 552
 553                 case ICMD_INT2SHORT:  /* ..., value  ==> ..., value                   */
 554
 555                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 556                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 557                         M_SSEXT(s1, d);
 558                         emit_store_dst(jd, iptr, d);
 559                         break;
 560
 561
 562                 case ICMD_IADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 563
 564                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 565                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 566                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 567                         M_IADD(s1, s2, d);
 568                         M_EXTSW(d,d);
 569                         emit_store_dst(jd, iptr, d);
 570                         break;
 571
 572                 case ICMD_IINC:
 573                 case ICMD_IADDCONST:
 574
 575                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 576                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 577                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767)) {
 578                                 M_IADD_IMM(s1, iptr->sx.val.i, d);
 579                         } else {
 580                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 581                                 M_IADD(s1, REG_ITMP2, d);
 582                         }
 583                         M_EXTSW(d,d);
 584                         emit_store_dst(jd, iptr, d);
 585                         break;
 586
 587                 case ICMD_LADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 588
 589                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 590                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 591                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 592                         M_LADD(s1, s2, d);
 593                         emit_store_dst(jd, iptr, d);
 594                         break;
 595
 596                 case ICMD_LADDCONST:  /* ..., value  ==> ..., value + constant        */
 597                                       /* sx.val.l = constant                          */
 598
 599                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 600                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 601                         /* XXX check me */
 602                         if ((iptr->sx.val.l >= -32768) && (iptr->sx.val.l <= 32767)) {
 603                                 M_LADD_IMM(s1, iptr->sx.val.l, d);
 604                         } else {
 605                                 LCONST(REG_ITMP2, iptr->sx.val.l);
 606                                 M_LADD(s1, REG_ITMP2, d);
 607                         }
 608                         emit_store_dst(jd, iptr, d);
 609                         break;
 610
 611                 case ICMD_ISUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 612
 613                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 614                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 615                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 616                         M_SUB(s1, s2, d);
 617                         M_EXTSW(d, d);
 618                         emit_store_dst(jd, iptr, d);
 619                         break;
 620
 621                 case ICMD_ISUBCONST:  /* ..., value  ==> ..., value + constant        */
 622                                       /* sx.val.i = constant                          */
 623
 624                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 625                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 626                         if ((iptr->sx.val.i >= -32767) && (iptr->sx.val.i <= 32768)) {
 627                                 M_IADD_IMM(s1, -iptr->sx.val.i, d);
 628                         } else {
 629                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 630                                 M_SUB(s1, REG_ITMP2, d);
 631                         }
 632                         M_EXTSW(d, d);
 633                         emit_store_dst(jd, iptr, d);
 634                         break;
 635
 636                 case ICMD_LSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 637
 638                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 639                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 640                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 641                         M_SUB(s1, s2, d);
 642                         emit_store_dst(jd, iptr, d);
 643                         break;
 644
 645                 case ICMD_LSUBCONST:  /* ..., value  ==> ..., value - constant        */
 646                                       /* sx.val.l = constant                          */
 647
 648                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 649                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 650                         /* XXX check me */
 651                         if ((iptr->sx.val.l >= -32767) && (iptr->sx.val.l <= 32767)) {
 652                                 M_LADD_IMM(s1, -iptr->sx.val.l, d);
 653                         } else {
 654                                 LCONST(REG_ITMP2, iptr->sx.val.l);
 655                                 M_SUB(s1, REG_ITMP2, d);
 656                         }
 657                         emit_store_dst(jd, iptr, d);
 658                         break;
 659
 660                 case ICMD_IDIV:
 661                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 662                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 663                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 664                         emit_arithmetic_check(cd, iptr, s2);
 665
 666                         M_DIV(s1, s2, d);
 667                         M_EXTSW(d, d);
 668                         emit_store_dst(jd, iptr, d);
 669                         break;
 670
 671                 case ICMD_LDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 672
 673                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 674                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 675                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 676                         emit_arithmetic_check(cd, iptr, s2);
 677
 678                         M_DIV(s1, s2, d);
 679                         /* we need to test if divident was 0x8000000000000, bit OV is set in XER in this case */
 680                         /* we only need to check this if we did a LDIV, not for IDIV */
 681                         M_MFXER(REG_ITMP2);
 682                         M_ANDIS(REG_ITMP2, 0x4000, REG_ITMP2);  /* test OV */
 683                         M_BLE(1);
 684                         M_MOV(s1, d);                           /* java specs says result == dividend */
 685                         emit_store_dst(jd, iptr, d);
 686                         break;
 687
 688                 case ICMD_IREM:
 689                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 690                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 691                         emit_arithmetic_check(cd, iptr, s2);
 692
 693                         M_DIV(s1, s2,  REG_ITMP3);
 694                         M_MUL(REG_ITMP3, s2, REG_ITMP2);
 695                         M_SUB(s1, REG_ITMP2,  REG_ITMP3);
 696                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 697
 698                         M_MOV(REG_ITMP3, d);
 699                         emit_store_dst(jd, iptr, d);
 700                         break;
 701
 702
 703                 case ICMD_LREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 704                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 705                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 706                         emit_arithmetic_check(cd, iptr, s2);
 707
 708                         M_DIV(s1, s2,  REG_ITMP3);
 709                         /* we need to test if divident was 0x8000000000000, bit OV is set in XER in this case */
 710                         /* we only need to check this if we did a LDIV, not for IDIV */
 711                         M_MFXER(REG_ITMP2);
 712                         M_ANDIS(REG_ITMP2, 0x4000, REG_ITMP2);  /* test OV */
 713                         M_BLE(2);
 714                         LCONST(REG_ITMP3, 0);                   /* result == 0 in this case */
 715                         M_BR(2);
 716                         M_MUL(REG_ITMP3, s2, REG_ITMP2);
 717                         M_SUB(s1, REG_ITMP2,  REG_ITMP3);
 718                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 719
 720                         M_MOV(REG_ITMP3, d);
 721                         emit_store_dst(jd, iptr, d);
 722                         break;
 723
 724
 725                 case ICMD_IMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 726                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 727                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 728                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 729                         M_MUL(s1, s2, d);
 730                         M_EXTSW(d, d);
 731                         emit_store_dst(jd, iptr, d);
 732                         break;
 733
 734                 case ICMD_LMUL:
 735                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 736                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 737                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 738                         M_MUL(s1, s2, d);
 739                         emit_store_dst(jd, iptr, d);
 740                         break;
 741
 742                 case ICMD_IMULCONST:  /* ..., value  ==> ..., value * constant        */
 743                                       /* sx.val.i = constant                          */
 744
 745                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 746                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 747                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767))
 748                                 M_MUL_IMM(s1, iptr->sx.val.i, d);
 749                         else {
 750                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 751                                 M_MUL(s1, REG_ITMP3, d);
 752                         }
 753                         M_EXTSW(d, d);
 754                         emit_store_dst(jd, iptr, d);
 755                         break;
 756                 case ICMD_LMULCONST:
 757                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 758                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 759                         if ((iptr->sx.val.l >= -32767) && (iptr->sx.val.l <= 32767))
 760                                 M_MUL_IMM(s1, iptr->sx.val.l, d);
 761                         else {
 762                                 LCONST(REG_ITMP3, iptr->sx.val.l);
 763                                 M_MUL(s1, REG_ITMP3, d);
 764                         }
 765                         emit_store_dst(jd, iptr, d);
 766                         break;
 767
 768                 case ICMD_IDIVPOW2:   /* ..., value  ==> ..., value << constant       */
 769
 770                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 771                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 772                         M_SRA_IMM(s1, iptr->sx.val.i, d);
 773                         M_ADDZE(d, d);
 774                         M_EXTSW(d, d);
 775                         emit_store_dst(jd, iptr, d);
 776                         break;
 777
 778                 case ICMD_ISHL:       /* ..., val1, val2  ==> ..., val1 << val2       */
 779
 780                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 781                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 782                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 783                         M_AND_IMM(s2, 0x1f, REG_ITMP3);
 784                         M_SLL(s1, REG_ITMP3, d);
 785                         M_EXTSW(d, d);
 786                         emit_store_dst(jd, iptr, d);
 787                         break;
 788
 789                 case ICMD_ISHLCONST:  /* ..., value  ==> ..., value << constant       */
 790                                       /* sx.val.i = constant                             */
 791
 792                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 793                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 794                         M_SLL_IMM(s1, iptr->sx.val.i & 0x1f, d);
 795                         M_EXTSW(d,d);
 796                         emit_store_dst(jd, iptr, d);
 797                         break;
 798
 799                 case ICMD_ISHR:       /* ..., val1, val2  ==> ..., val1 >> val2       */
 800
 801                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 802                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 803                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 804                         M_AND_IMM(s2, 0x1f, REG_ITMP3);
 805                         M_SRA(s1, REG_ITMP3, d);
 806                         emit_store_dst(jd, iptr, d);
 807                         break;
 808
 809                 case ICMD_ISHRCONST:  /* ..., value  ==> ..., value >> constant       */
 810                                       /* sx.val.i = constant                             */
 811
 812                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 813                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 814                         M_SRA_IMM(s1, iptr->sx.val.i & 0x1f, d);
 815                         emit_store_dst(jd, iptr, d);
 816                         break;
 817
 818                 case ICMD_IUSHR:      /* ..., val1, val2  ==> ..., val1 >>> val2      */
 819
 820                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 821                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 822                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 823                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 824                         M_MOV(s1, REG_ITMP1);
 825                         M_CLR_HIGH(REG_ITMP1);
 826                         M_SRL(REG_ITMP1, REG_ITMP2, d);
 827                         M_EXTSW(d,d);   /* for the case it was shift 0 bits */
 828                         emit_store_dst(jd, iptr, d);
 829                         break;
 830
 831                 case ICMD_IUSHRCONST: /* ..., value  ==> ..., value >>> constant      */
 832                                       /* sx.val.i = constant                             */
 833
 834                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 835                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 836                         if (iptr->sx.val.i & 0x1f) {
 837                                 M_MOV(s1, REG_ITMP1);
 838                                 M_CLR_HIGH(REG_ITMP1);
 839                                 M_SRA_IMM(REG_ITMP1, iptr->sx.val.i & 0x1f, d);
 840                         } else {
 841                                 M_INTMOVE(s1, d);
 842                         }
 843                         emit_store_dst(jd, iptr, d);
 844                         break;
 845
 846                 case ICMD_LSHLCONST:
 847                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 848                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 849                         M_SLL_IMM(s1, iptr->sx.val.i & 0x3f, d);
 850                         emit_store_dst(jd, iptr, d);
 851                         break;
 852                 case ICMD_LSHL:
 853                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 854                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 855                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 856                         M_AND_IMM(s2, 0x3f, REG_ITMP2);
 857                         M_SLL(s1, REG_ITMP2, d);
 858                         emit_store_dst(jd, iptr, d);
 859                         break;
 860                 case ICMD_LSHRCONST:
 861                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 862                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 863                         M_SRA_IMM(s1, iptr->sx.val.i & 0x3f, d);
 864                         emit_store_dst(jd, iptr, d);
 865                         break;
 866                 case ICMD_LSHR:
 867                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 868                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 869                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 870                         M_AND_IMM(s2, 0x3f, REG_ITMP2);
 871                         M_SRA(s1, REG_ITMP2, d);
 872                         emit_store_dst(jd, iptr, d);
 873                         break;
 874                 case ICMD_LUSHRCONST:
 875                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 876                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 877                         M_SRL_IMM(s1, iptr->sx.val.i & 0x3f, d);
 878                         emit_store_dst(jd, iptr, d);
 879                         break;
 880                 case ICMD_LUSHR:
 881                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 882                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 883                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 884                         M_AND_IMM(s2, 0x3f, REG_ITMP2);
 885                         M_SRL(s1, REG_ITMP2, d);
 886                         emit_store_dst(jd, iptr, d);
 887                         break;
 888
 889                 case ICMD_IAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 890                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 891                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 892                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 893                         M_AND(s1, s2, d);
 894 /*                      M_EXTSW(d, d);*/
 895                         emit_store_dst(jd, iptr, d);
 896                         break;
 897
 898                 case ICMD_LAND:
 899                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 900                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 901                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 902                         M_AND(s1, s2, d);
 903                         emit_store_dst(jd, iptr, d);
 904                         break;
 905
 906                 case ICMD_IANDCONST:  /* ..., value  ==> ..., value & constant        */
 907                                       /* sx.val.i = constant                          */
 908
 909                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 910                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 911                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535)) {
 912                                 M_AND_IMM(s1, iptr->sx.val.i, d);
 913                                 }
 914                         /*
 915                         else if (iptr->sx.val.i == 0xffffff) {
 916                                 M_RLWINM(s1, 0, 8, 31, d);
 917                                 }
 918                         */
 919                         else {
 920                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 921                                 M_AND(s1, REG_ITMP3, d);
 922                         }
 923                         emit_store_dst(jd, iptr, d);
 924                         break;
 925
 926                 case ICMD_LANDCONST:  /* ..., value  ==> ..., value & constant        */
 927                                       /* sx.val.l = constant                          */
 928
 929                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 930                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 931                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
 932                                 M_AND_IMM(s1, iptr->sx.val.l, d);
 933                         /*
 934                         else if (iptr->sx.val.l == 0xffffff) {
 935                                 M_RLWINM(s1, 0, 8, 31, d);
 936                                 }
 937                         */
 938                         else {
 939                                 LCONST(REG_ITMP3, iptr->sx.val.l);
 940                                 M_AND(s1, REG_ITMP3, d);
 941                         }
 942                         emit_store_dst(jd, iptr, d);
 943                         break;
 944
 945                 case ICMD_IREMPOW2:   /* ..., value  ==> ..., value % constant        */
 946                                       /* sx.val.i = constant                             */
 947                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 948                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 949 #if 0
 950                         /* fast division, result in REG_ITMP3) */
 951                         M_SRA_IMM(s1, iptr->sx.val.i, REG_ITMP3);
 952                         M_ADDZE(REG_ITMP3, REG_ITMP3);
 953
 954                         M_SUB(s1, REG_ITMP3, d);
 955                         M_EXTSW(d, d);
 956                         emit_store_dst(jd, iptr, d);
 957                         break;
 958 #else
 959
 960                         M_MOV(s1, REG_ITMP2);
 961                         M_CMPI(s1, 0);
 962                         M_BGE(1 + 3*(iptr->sx.val.i >= 32768));
 963                         if (iptr->sx.val.i >= 32768) {
 964                                 M_ADDIS(REG_ZERO, iptr->sx.val.i >> 16, REG_ITMP2);
 965                                 M_EXTSW(REG_ITMP2, REG_ITMP2);
 966                                 M_OR_IMM(REG_ITMP2, iptr->sx.val.i, REG_ITMP2);
 967                                 M_IADD(s1, REG_ITMP2, REG_ITMP2);
 968                         } else {
 969                                 M_IADD_IMM(s1, iptr->sx.val.i, REG_ITMP2);
 970                         }
 971                         {
 972                                 int b=0, m = iptr->sx.val.i;
 973                                 while (m >>= 1)
 974                                         ++b;
 975                                 M_RLWINM(REG_ITMP2, 0, 0, 30-b, REG_ITMP2);
 976                         }
 977                         M_SUB(s1, REG_ITMP2, d);
 978                         M_EXTSW(d, d);
 979                         emit_store_dst(jd, iptr, d);
 980                         break;
 981 #endif
 982
 983                 case ICMD_IOR:        /* ..., val1, val2  ==> ..., val1 | val2        */
 984                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 985                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 986                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 987                         M_OR(s1, s2, d);
 988 /*                      M_EXTSW(d,d);*/
 989                         emit_store_dst(jd, iptr, d);
 990                         break;
 991
 992                 case ICMD_LOR:
 993
 994                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 995                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 996                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 997                         M_OR(s1, s2, d);
 998                         emit_store_dst(jd, iptr, d);
 999                         break;
1000
1001                 case ICMD_IORCONST:   /* ..., value  ==> ..., value | constant        */
1002                                       /* sx.val.i = constant                          */
1003
1004                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1005                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1006                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
1007                                 M_OR_IMM(s1, iptr->sx.val.i, d);
1008                         else {
1009                                 ICONST(REG_ITMP3, iptr->sx.val.i);
1010                                 M_OR(s1, REG_ITMP3, d);
1011                         }
1012                         emit_store_dst(jd, iptr, d);
1013                         break;
1014
1015                 case ICMD_LORCONST:   /* ..., value  ==> ..., value | constant        */
1016                                       /* sx.val.l = constant                          */
1017
1018                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1019                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1020                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
1021                                 M_OR_IMM(s1, iptr->sx.val.l, d);
1022                         else {
1023                                 LCONST(REG_ITMP3, iptr->sx.val.l);
1024                                 M_OR(s1, REG_ITMP3, d);
1025                         }
1026                         emit_store_dst(jd, iptr, d);
1027                         break;
1028
1029
1030                 case ICMD_IXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
1031                 case ICMD_LXOR:
1032
1033                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1034                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1035                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1036                         M_XOR(s1, s2, d);
1037                         emit_store_dst(jd, iptr, d);
1038                         break;
1039
1040                 case ICMD_IXORCONST:  /* ..., value  ==> ..., value ^ constant        */
1041                                       /* sx.val.i = constant                          */
1042
1043                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1044                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1045                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
1046                                 M_XOR_IMM(s1, iptr->sx.val.i, d);
1047                         else {
1048                                 ICONST(REG_ITMP3, iptr->sx.val.i);
1049                                 M_XOR(s1, REG_ITMP3, d);
1050                         }
1051                         emit_store_dst(jd, iptr, d);
1052                         break;
1053
1054                 case ICMD_LXORCONST:  /* ..., value  ==> ..., value ^ constant        */
1055                                       /* sx.val.l = constant                          */
1056
1057                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1058                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1059                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
1060                                 M_XOR_IMM(s1, iptr->sx.val.l, d);
1061                         else {
1062                                 LCONST(REG_ITMP3, iptr->sx.val.l);
1063                                 M_XOR(s1, REG_ITMP3, d);
1064                         }
1065                         emit_store_dst(jd, iptr, d);
1066                         break;
1067
1068                 case ICMD_LCMP:       /* ..., val1, val2  ==> ..., val1 cmp val2      */
1069
1070                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1071                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1072                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
1073                         /* XXX implement me!!! */
1074                         vm_abort("codegen: implement ICMD_LCMP!");
1075                         emit_store_dst(jd, iptr, d);
1076                         break;
1077                         break;
1078
1079
1080                 /* floating operations ************************************************/
1081
1082                 case ICMD_FNEG:       /* ..., value  ==> ..., - value                 */
1083
1084                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1085                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1086                         M_FMOVN(s1, d);
1087                         emit_store_dst(jd, iptr, d);
1088                         break;
1089
1090                 case ICMD_DNEG:       /* ..., value  ==> ..., - value                 */
1091
1092                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1093                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1094                         M_FMOVN(s1, d);
1095                         emit_store_dst(jd, iptr, d);
1096                         break;
1097
1098                 case ICMD_FADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
1099
1100                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1101                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1102                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1103                         M_FADD(s1, s2, d);
1104                         emit_store_dst(jd, iptr, d);
1105                         break;
1106
1107                 case ICMD_DADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
1108
1109                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1110                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1111                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1112                         M_DADD(s1, s2, d);
1113                         emit_store_dst(jd, iptr, d);
1114                         break;
1115
1116                 case ICMD_FSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
1117
1118                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1119                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1120                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1121                         M_FSUB(s1, s2, d);
1122                         emit_store_dst(jd, iptr, d);
1123                         break;
1124
1125                 case ICMD_DSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
1126
1127                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1128                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1129                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1130                         M_DSUB(s1, s2, d);
1131                         emit_store_dst(jd, iptr, d);
1132                         break;
1133
1134                 case ICMD_FMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1135
1136                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1137                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1138                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1139                         M_FMUL(s1, s2, d);
1140                         emit_store_dst(jd, iptr, d);
1141                         break;
1142
1143                 case ICMD_DMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1144
1145                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1146                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1147                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1148                         M_DMUL(s1, s2, d);
1149                         emit_store_dst(jd, iptr, d);
1150                         break;
1151
1152                 case ICMD_FDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1153
1154                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1155                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1156                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1157                         M_FDIV(s1, s2, d);
1158                         emit_store_dst(jd, iptr, d);
1159                         break;
1160
1161                 case ICMD_DDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1162
1163                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1164                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1165                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1166                         M_DDIV(s1, s2, d);
1167                         emit_store_dst(jd, iptr, d);
1168                         break;
1169
1170                 case ICMD_F2I:       /* ..., value  ==> ..., (int) value              */
1171                 case ICMD_D2I:
1172
1173                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1174                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1175                         M_CLR(d);
1176                         disp = dseg_add_float(cd, 0.0);
1177                         M_FLD(REG_FTMP2, REG_PV, disp);
1178                         M_FCMPU(s1, REG_FTMP2);
1179                         M_BNAN(4);
1180                         disp = dseg_add_unique_s4(cd, 0);
1181                         M_CVTDL_C(s1, REG_FTMP1);
1182                         M_LDA(REG_ITMP1, REG_PV, disp);
1183                         M_STFIWX(REG_FTMP1, 0, REG_ITMP1);
1184                         M_ILD(d, REG_PV, disp);
1185                         emit_store_dst(jd, iptr, d);
1186                         break;
1187
1188                 case ICMD_F2D:       /* ..., value  ==> ..., (double) value           */
1189
1190                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1191                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1192                         M_FLTMOVE(s1, d);
1193                         emit_store_dst(jd, iptr, d);
1194                         break;
1195
1196                 case ICMD_D2F:       /* ..., value  ==> ..., (double) value           */
1197
1198                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1199                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1200                         M_CVTDF(s1, d);
1201                         emit_store_dst(jd, iptr, d);
1202                         break;
1203
1204                 case ICMD_FCMPL:      /* ..., val1, val2  ==> ..., val1 fcmpg val2    */
1205                 case ICMD_DCMPL:      /* == => 0, < => 1, > => -1                     */
1206
1207
1208                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1209                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1210                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1211                         M_FCMPU(s2, s1);
1212                         M_IADD_IMM(REG_ZERO, -1, d);
1213                         M_BNAN(4);
1214                         M_BGT(3);
1215                         M_IADD_IMM(REG_ZERO, 0, d);
1216                         M_BGE(1);
1217                         M_IADD_IMM(REG_ZERO, 1, d);
1218                         emit_store_dst(jd, iptr, d);
1219                         break;
1220
1221                 case ICMD_FCMPG:      /* ..., val1, val2  ==> ..., val1 fcmpl val2    */
1222                 case ICMD_DCMPG:      /* == => 0, < => 1, > => -1                     */
1223
1224                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1225                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1226                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1227                         M_FCMPU(s1, s2);
1228                         M_IADD_IMM(REG_ZERO, 1, d);
1229                         M_BNAN(4);
1230                         M_BGT(3);
1231                         M_IADD_IMM(REG_ZERO, 0, d);
1232                         M_BGE(1);
1233                         M_IADD_IMM(REG_ZERO, -1, d);
1234                         emit_store_dst(jd, iptr, d);
1235                         break;
1236
1237                 case ICMD_IF_FCMPEQ:    /* ..., value, value ==> ...                  */
1238                 case ICMD_IF_DCMPEQ:
1239
1240                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1241                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1242                         M_FCMPU(s1, s2);
1243                         M_BNAN(1);
1244                         emit_beq(cd, iptr->dst.block);
1245                         break;
1246
1247                 case ICMD_IF_FCMPNE:    /* ..., value, value ==> ...                  */
1248                 case ICMD_IF_DCMPNE:
1249
1250                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1251                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1252                         M_FCMPU(s1, s2);
1253                         emit_bnan(cd, iptr->dst.block);
1254                         emit_bne(cd, iptr->dst.block);
1255                         break;
1256
1257
1258                 case ICMD_IF_FCMPL_LT:  /* ..., value, value ==> ...                  */
1259                 case ICMD_IF_DCMPL_LT:
1260
1261                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1262                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1263                         M_FCMPU(s1, s2);
1264                         emit_bnan(cd, iptr->dst.block);
1265                         emit_blt(cd, iptr->dst.block);
1266                         break;
1267
1268                 case ICMD_IF_FCMPL_GT:  /* ..., value, value ==> ...                  */
1269                 case ICMD_IF_DCMPL_GT:
1270
1271                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1272                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1273                         M_FCMPU(s1, s2);
1274                         M_BNAN(1);
1275                         emit_bgt(cd, iptr->dst.block);
1276                         break;
1277
1278                 case ICMD_IF_FCMPL_LE:  /* ..., value, value ==> ...                  */
1279                 case ICMD_IF_DCMPL_LE:
1280
1281                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1282                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1283                         M_FCMPU(s1, s2);
1284                         emit_bnan(cd, iptr->dst.block);
1285                         emit_ble(cd, iptr->dst.block);
1286                         break;
1287
1288                 case ICMD_IF_FCMPL_GE:  /* ..., value, value ==> ...                  */
1289                 case ICMD_IF_DCMPL_GE:
1290
1291                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1292                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1293                         M_FCMPU(s1, s2);
1294                         M_BNAN(1);
1295                         emit_bge(cd, iptr->dst.block);
1296                         break;
1297
1298                 case ICMD_IF_FCMPG_LT:  /* ..., value, value ==> ...                  */
1299                 case ICMD_IF_DCMPG_LT:
1300
1301                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1302                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1303                         M_FCMPU(s1, s2);
1304                         M_BNAN(1);
1305                         emit_blt(cd, iptr->dst.block);
1306                         break;
1307
1308                 case ICMD_IF_FCMPG_GT:  /* ..., value, value ==> ...                  */
1309                 case ICMD_IF_DCMPG_GT:
1310
1311                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1312                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1313                         M_FCMPU(s1, s2);
1314                         emit_bnan(cd, iptr->dst.block);
1315                         emit_bgt(cd, iptr->dst.block);
1316                         break;
1317
1318                 case ICMD_IF_FCMPG_LE:  /* ..., value, value ==> ...                  */
1319                 case ICMD_IF_DCMPG_LE:
1320
1321                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1322                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1323                         M_FCMPU(s1, s2);
1324                         M_BNAN(1);
1325                         emit_ble(cd, iptr->dst.block);
1326                         break;
1327
1328                 case ICMD_IF_FCMPG_GE:  /* ..., value, value ==> ...                  */
1329                 case ICMD_IF_DCMPG_GE:
1330
1331                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1332                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1333                         M_FCMPU(s1, s2);
1334                         emit_bnan(cd, iptr->dst.block);
1335                         emit_bge(cd, iptr->dst.block);
1336                         break;
1337
1338
1339                 /* memory operations **************************************************/
1340
1341                 case ICMD_ARRAYLENGTH: /* ..., arrayref  ==> ..., length              */
1342
1343                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1344                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1345                         emit_nullpointer_check(cd, iptr, s1);
1346                         M_ILD(d, s1, OFFSET(java_array_t, size));
1347                         emit_store_dst(jd, iptr, d);
1348                         break;
1349
1350                 case ICMD_BALOAD:     /* ..., arrayref, index  ==> ..., value         */
1351
1352                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1353                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1354                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1355                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1356                         M_IADD_IMM(s2, OFFSET(java_bytearray_t, data[0]), REG_ITMP2);
1357                         /* implicit null-pointer check */
1358                         M_LBZX(d, s1, REG_ITMP2);
1359                         M_BSEXT(d, d);
1360                         emit_store_dst(jd, iptr, d);
1361                         break;
1362
1363                 case ICMD_CALOAD:     /* ..., arrayref, index  ==> ..., value         */
1364
1365                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1366                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1367                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1368                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1369                         M_SLL_IMM(s2, 1, REG_ITMP2);
1370                         M_IADD_IMM(REG_ITMP2, OFFSET(java_chararray_t, data[0]), REG_ITMP2);
1371                         /* implicit null-pointer check */
1372                         M_LHZX(d, s1, REG_ITMP2);
1373                         emit_store_dst(jd, iptr, d);
1374                         break;
1375
1376                 case ICMD_SALOAD:     /* ..., arrayref, index  ==> ..., value         */
1377
1378                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1379                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1380                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1381                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1382                         M_SLL_IMM(s2, 1, REG_ITMP2);
1383                         M_IADD_IMM(REG_ITMP2, OFFSET(java_shortarray_t, data[0]), REG_ITMP2);
1384                         /* implicit null-pointer check */
1385                         M_LHAX(d, s1, REG_ITMP2);
1386                         emit_store_dst(jd, iptr, d);
1387                         break;
1388
1389                 case ICMD_IALOAD:     /* ..., arrayref, index  ==> ..., value         */
1390
1391                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1392                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1393                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1394                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1395                         M_SLL_IMM(s2, 2, REG_ITMP2);
1396                         M_IADD_IMM(REG_ITMP2, OFFSET(java_intarray_t, data[0]), REG_ITMP2);
1397                         /* implicit null-pointer check */
1398                         M_LWAX(d, s1, REG_ITMP2);
1399                         emit_store_dst(jd, iptr, d);
1400                         break;
1401
1402                 case ICMD_LALOAD:     /* ..., arrayref, index  ==> ..., value         */
1403
1404                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1405                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1406                         d = codegen_reg_of_dst(jd, iptr, PACK_REGS(REG_ITMP2, REG_ITMP1));
1407                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1408                         M_SLL_IMM(s2, 3, REG_ITMP2);
1409                         M_IADD(s1, REG_ITMP2, REG_ITMP2);
1410                         /* implicit null-pointer check */
1411                         M_LLD_INTERN(d, REG_ITMP2, OFFSET(java_longarray_t, data[0]));
1412                         emit_store_dst(jd, iptr, d);
1413                         break;
1414
1415                 case ICMD_FALOAD:     /* ..., arrayref, index  ==> ..., value         */
1416
1417                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1418                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1419                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1420                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1421                         M_SLL_IMM(s2, 2, REG_ITMP2);
1422                         M_IADD_IMM(REG_ITMP2, OFFSET(java_floatarray_t, data[0]), REG_ITMP2);
1423                         /* implicit null-pointer check */
1424                         M_LFSX(d, s1, REG_ITMP2);
1425                         emit_store_dst(jd, iptr, d);
1426                         break;
1427
1428                 case ICMD_DALOAD:     /* ..., arrayref, index  ==> ..., value         */
1429
1430                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1431                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1432                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1433                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1434                         M_SLL_IMM(s2, 3, REG_ITMP2);
1435                         M_IADD_IMM(REG_ITMP2, OFFSET(java_doublearray_t, data[0]), REG_ITMP2);
1436                         /* implicit null-pointer check */
1437                         M_LFDX(d, s1, REG_ITMP2);
1438                         emit_store_dst(jd, iptr, d);
1439                         break;
1440
1441                 case ICMD_AALOAD:     /* ..., arrayref, index  ==> ..., value         */
1442
1443                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1444                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1445                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1446                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1447                         M_SLL_IMM(s2, 3, REG_ITMP2);
1448                         M_IADD_IMM(REG_ITMP2, OFFSET(java_objectarray_t, data[0]), REG_ITMP2);
1449                         /* implicit null-pointer check */
1450                         M_ALDX(d, s1, REG_ITMP2);
1451                         emit_store_dst(jd, iptr, d);
1452                         break;
1453
1454
1455                 case ICMD_BASTORE:    /* ..., arrayref, index, value  ==> ...         */
1456
1457                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1458                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1459                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1460                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1461                         M_IADD_IMM(s2, OFFSET(java_bytearray_t, data[0]), REG_ITMP2);
1462                         /* implicit null-pointer check */
1463                         M_STBX(s3, s1, REG_ITMP2);
1464                         break;
1465
1466                 case ICMD_CASTORE:    /* ..., arrayref, index, value  ==> ...         */
1467
1468                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1469                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1470                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1471                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1472                         M_SLL_IMM(s2, 1, REG_ITMP2);
1473                         M_IADD_IMM(REG_ITMP2, OFFSET(java_chararray_t, data[0]), REG_ITMP2);
1474                         /* implicit null-pointer check */
1475                         M_STHX(s3, s1, REG_ITMP2);
1476                         break;
1477
1478                 case ICMD_SASTORE:    /* ..., arrayref, index, value  ==> ...         */
1479
1480                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1481                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1482                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1483                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1484                         M_SLL_IMM(s2, 1, REG_ITMP2);
1485                         M_IADD_IMM(REG_ITMP2, OFFSET(java_shortarray_t, data[0]), REG_ITMP2);
1486                         M_STHX(s3, s1, REG_ITMP2);
1487                         break;
1488
1489                 case ICMD_IASTORE:    /* ..., arrayref, index, value  ==> ...         */
1490
1491                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1492                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1493                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1494                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1495                         M_SLL_IMM(s2, 2, REG_ITMP2);
1496                         M_IADD_IMM(REG_ITMP2, OFFSET(java_intarray_t, data[0]), REG_ITMP2);
1497                         /* implicit null-pointer check */
1498                         M_STWX(s3, s1, REG_ITMP2);
1499                         break;
1500
1501                 case ICMD_LASTORE:    /* ..., arrayref, index, value  ==> ...         */
1502
1503                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1504                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1505                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1506                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1507                         M_SLL_IMM(s2, 3, REG_ITMP2);
1508                         M_IADD_IMM(REG_ITMP2, OFFSET(java_longarray_t, data[0]), REG_ITMP2);
1509                         /* implicit null-pointer check */
1510                         M_LSTX(s3, s1, REG_ITMP2);
1511                         break;
1512
1513                 case ICMD_FASTORE:    /* ..., arrayref, index, value  ==> ...         */
1514
1515                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1516                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1517                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1518                         s3 = emit_load_s3(jd, iptr, REG_FTMP3);
1519                         M_SLL_IMM(s2, 2, REG_ITMP2);
1520                         M_IADD_IMM(REG_ITMP2, OFFSET(java_floatarray_t, data[0]), REG_ITMP2);
1521                         /* implicit null-pointer check */
1522                         M_STFSX(s3, s1, REG_ITMP2);
1523                         break;
1524
1525                 case ICMD_DASTORE:    /* ..., arrayref, index, value  ==> ...         */
1526
1527                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1528                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1529                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1530                         s3 = emit_load_s3(jd, iptr, REG_FTMP3);
1531                         M_SLL_IMM(s2, 3, REG_ITMP2);
1532                         M_IADD_IMM(REG_ITMP2, OFFSET(java_doublearray_t, data[0]), REG_ITMP2);
1533                         /* implicit null-pointer check */
1534                         M_STFDX(s3, s1, REG_ITMP2);
1535                         break;
1536
1537                 case ICMD_AASTORE:    /* ..., arrayref, index, value  ==> ...         */
1538
1539                         s1 = emit_load_s1(jd, iptr, REG_A0);
1540                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1541                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1542                         s3 = emit_load_s3(jd, iptr, REG_A1);
1543
1544                         disp = dseg_add_functionptr(cd, BUILTIN_canstore);
1545                         M_ALD(REG_ITMP3, REG_PV, disp);
1546                         M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
1547                         M_MTCTR(REG_ITMP3);
1548
1549                         M_INTMOVE(s1, REG_A0);
1550                         M_INTMOVE(s3, REG_A1);
1551
1552                         M_JSR;
1553                         emit_exception_check(cd, iptr);
1554
1555                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1556                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1557                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1558                         M_SLL_IMM(s2, 3, REG_ITMP2);
1559                         M_IADD_IMM(REG_ITMP2, OFFSET(java_objectarray_t, data[0]), REG_ITMP2);
1560                         /* implicit null-pointer check */
1561                         M_ASTX(s3, s1, REG_ITMP2);
1562                         break;
1563
1564
1565                 case ICMD_GETSTATIC:  /* ...  ==> ..., value                          */
1566
1567                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1568                                 uf        = iptr->sx.s23.s3.uf;
1569                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1570                                 disp      = dseg_add_unique_address(cd, NULL);
1571
1572                                 codegen_addpatchref(cd, PATCHER_get_putstatic,
1573                                                                         iptr->sx.s23.s3.uf, disp);
1574
1575                         }
1576                         else {
1577                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1578                                 fieldtype = fi->type;
1579                                 disp      = dseg_add_address(cd, fi->value);
1580
1581                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1582                                         codegen_addpatchref(cd, PATCHER_clinit, fi->class, disp);
1583                                 }
1584                         }
1585
1586                         M_ALD(REG_ITMP1, REG_PV, disp);
1587                         switch (fieldtype) {
1588                         case TYPE_INT:
1589                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1590                                 M_ILD_INTERN(d, REG_ITMP1, 0);
1591                                 break;
1592                         case TYPE_LNG:
1593                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1594                                 M_LLD(d, REG_ITMP1, 0);
1595                                 break;
1596                         case TYPE_ADR:
1597                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1598                                 M_ALD_INTERN(d, REG_ITMP1, 0);
1599                                 break;
1600                         case TYPE_FLT:
1601                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1602                                 M_FLD_INTERN(d, REG_ITMP1, 0);
1603                                 break;
1604                         case TYPE_DBL:
1605                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1606                                 M_DLD_INTERN(d, REG_ITMP1, 0);
1607                                 break;
1608                         }
1609                         emit_store_dst(jd, iptr, d);
1610                         break;
1611
1612                 case ICMD_PUTSTATIC:  /* ..., value  ==> ...                          */
1613
1614
1615                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1616                                 uf        = iptr->sx.s23.s3.uf;
1617                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1618                                 disp      = dseg_add_unique_address(cd, NULL);
1619
1620                                 codegen_addpatchref(cd, PATCHER_get_putstatic,
1621                                                                         iptr->sx.s23.s3.uf, disp);
1622                         }
1623                         else {
1624                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1625                                 fieldtype = fi->type;
1626                                 disp      = dseg_add_address(cd, fi->value);
1627
1628                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1629                                         codegen_addpatchref(cd, PATCHER_clinit, fi->class, disp);
1630                                 }
1631                         }
1632
1633                         M_ALD(REG_ITMP1, REG_PV, disp);
1634                         switch (fieldtype) {
1635                         case TYPE_INT:
1636                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1637                                 M_IST_INTERN(s1, REG_ITMP1, 0);
1638                                 break;
1639                         case TYPE_LNG:
1640                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1641                                 M_LST_INTERN(s1, REG_ITMP1, 0);
1642                                 break;
1643                         case TYPE_ADR:
1644                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1645                                 M_AST_INTERN(s1, REG_ITMP1, 0);
1646                                 break;
1647                         case TYPE_FLT:
1648                                 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1649                                 M_FST_INTERN(s1, REG_ITMP1, 0);
1650                                 break;
1651                         case TYPE_DBL:
1652                                 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1653                                 M_DST_INTERN(s1, REG_ITMP1, 0);
1654                                 break;
1655                         }
1656                         break;
1657
1658
1659                 case ICMD_GETFIELD:   /* ...  ==> ..., value                          */
1660
1661                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1662
1663                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1664                                 uf        = iptr->sx.s23.s3.uf;
1665                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1666                                 disp      = 0;
1667
1668                                 codegen_addpatchref(cd, PATCHER_get_putfield, uf, 0);
1669                         }
1670                         else {
1671                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1672                                 fieldtype = fi->type;
1673                                 disp      = fi->offset;
1674                         }
1675
1676                         /* implicit null-pointer check */
1677                         switch (fieldtype) {
1678                         case TYPE_INT:
1679                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1680                                 M_ILD(d, s1, disp);
1681                                 break;
1682                         case TYPE_LNG:
1683                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1684                                 M_LLD(d, s1, disp);
1685                                 break;
1686                         case TYPE_ADR:
1687                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1688                                 M_ALD(d, s1, disp);
1689                                 break;
1690                         case TYPE_FLT:
1691                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1692                                 M_FLD(d, s1, disp);
1693                                 break;
1694                         case TYPE_DBL:
1695                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1696                                 M_DLD(d, s1, disp);
1697                                 break;
1698                         }
1699                         emit_store_dst(jd, iptr, d);
1700                         break;
1701
1702                 case ICMD_PUTFIELD:   /* ..., value  ==> ...                          */
1703
1704                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1705
1706                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1707                                 uf        = iptr->sx.s23.s3.uf;
1708                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1709                                 disp      = 0;
1710                         }
1711                         else {
1712                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1713                                 fieldtype = fi->type;
1714                                 disp      = fi->offset;
1715                         }
1716
1717                         if (IS_INT_LNG_TYPE(fieldtype)) {
1718                                 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1719                         }
1720                         else
1721                                 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1722
1723                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1724                                 codegen_addpatchref(cd, PATCHER_get_putfield, uf, 0);
1725                         }
1726
1727
1728                         /* implicit null-pointer check */
1729                         switch (fieldtype) {
1730                         case TYPE_INT:
1731                                 M_IST(s2, s1, disp);
1732                                 break;
1733                         case TYPE_LNG:
1734                                 M_LST(s2, s1, disp);
1735                                 break;
1736                         case TYPE_ADR:
1737                                 M_AST(s2, s1, disp);
1738                                 break;
1739                         case TYPE_FLT:
1740                                 M_FST(s2, s1, disp);
1741                                 break;
1742                         case TYPE_DBL:
1743                                 M_DST(s2, s1, disp);
1744                                 break;
1745                         }
1746                         break;
1747
1748
1749                 /* branch operations **************************************************/
1750
1751                 case ICMD_ATHROW:       /* ..., objectref ==> ... (, objectref)       */
1752
1753                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1754                         M_LNGMOVE(s1, REG_ITMP1_XPTR);
1755
1756 #ifdef ENABLE_VERIFIER
1757                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1758                                 codegen_addpatchref(cd, PATCHER_athrow_areturn,
1759                                                                         iptr->sx.s23.s2.uc, 0);
1760                         }
1761 #endif /* ENABLE_VERIFIER */
1762
1763                         disp = dseg_add_functionptr(cd, asm_handle_exception);
1764                         M_ALD(REG_ITMP2, REG_PV, disp);
1765                         M_MTCTR(REG_ITMP2);
1766
1767                         if (jd->isleafmethod) M_MFLR(REG_ITMP3);         /* save LR        */
1768                         M_BL(0);                                        /* get current PC */
1769                         M_MFLR(REG_ITMP2_XPC);
1770                         if (jd->isleafmethod) M_MTLR(REG_ITMP3);         /* restore LR     */
1771                         M_RTS;                                          /* jump to CTR    */
1772
1773                         ALIGNCODENOP;
1774                         break;
1775
1776                 case ICMD_GOTO:         /* ... ==> ...                                */
1777                 case ICMD_RET:          /* ... ==> ...                                */
1778
1779                         emit_br(cd, iptr->dst.block);
1780                         ALIGNCODENOP;
1781                         break;
1782
1783                 case ICMD_JSR:          /* ... ==> ...                                */
1784
1785                         emit_br(cd, iptr->sx.s23.s3.jsrtarget.block);
1786                         ALIGNCODENOP;
1787                         break;
1788
1789                 case ICMD_IFNULL:       /* ..., value ==> ...                         */
1790
1791                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1792                         M_TST(s1);
1793                         emit_beq(cd, iptr->dst.block);
1794                         break;
1795
1796                 case ICMD_IFNONNULL:    /* ..., value ==> ...                         */
1797
1798                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1799                         M_TST(s1);
1800                         emit_bne(cd, iptr->dst.block);
1801                         break;
1802
1803                 case ICMD_IFLT:
1804                 case ICMD_IFLE:
1805                 case ICMD_IFNE:
1806                 case ICMD_IFGT:
1807                 case ICMD_IFGE:
1808                 case ICMD_IFEQ:         /* ..., value ==> ...                         */
1809
1810                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1811                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767))
1812                                 M_CMPI(s1, iptr->sx.val.i);
1813                         else {
1814                                 ICONST(REG_ITMP2, iptr->sx.val.i);
1815                                 M_CMP(s1, REG_ITMP2);
1816                         }
1817                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFEQ, BRANCH_OPT_NONE);
1818                         break;
1819
1820                 case ICMD_IF_LEQ:       /* ..., value ==> ...                         */
1821                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1822                         LCONST(REG_ITMP2, iptr->sx.val.l);
1823                         M_CMP(s1, REG_ITMP2);
1824                         emit_beq(cd, iptr->dst.block);
1825                         break;
1826                 case ICMD_IF_LLT:       /* ..., value ==> ...                         */
1827                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1828                         LCONST(REG_ITMP2, iptr->sx.val.l);
1829                         M_CMP(s1, REG_ITMP2);
1830                         emit_blt(cd, iptr->dst.block);
1831                         break;
1832                 case ICMD_IF_LLE:       /* ..., value ==> ...                         */
1833                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1834                         LCONST(REG_ITMP2, iptr->sx.val.l);
1835                         M_CMP(s1, REG_ITMP2);
1836                         emit_ble(cd, iptr->dst.block);
1837                         break;
1838
1839                 case ICMD_IF_LNE:       /* ..., value ==> ... */
1840                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1841                         LCONST(REG_ITMP2, iptr->sx.val.l);
1842                         M_CMP(s1, REG_ITMP2);
1843                         emit_bne(cd, iptr->dst.block);
1844                         break;
1845                 case ICMD_IF_LGE:       /* ..., value ==> ... */
1846                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1847                         LCONST(REG_ITMP2, iptr->sx.val.l);
1848                         M_CMP(s1, REG_ITMP2);
1849                         emit_bge(cd, iptr->dst.block);
1850                         break;
1851                 case ICMD_IF_LGT:       /* ..., value ==> ...                         */
1852                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1853                         LCONST(REG_ITMP2, iptr->sx.val.l);
1854                         M_CMP(s1, REG_ITMP2);
1855                         emit_bgt(cd, iptr->dst.block);
1856                         break;
1857                 case ICMD_IF_ICMPEQ:    /* ..., value, value ==> ...                  */
1858                 case ICMD_IF_ACMPEQ:    /* op1 = target JavaVM pc                     */
1859                 case ICMD_IF_LCMPEQ:
1860
1861                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1862                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1863                         M_CMP(s1, s2);
1864                         emit_beq(cd, iptr->dst.block);
1865                         break;
1866
1867                 case ICMD_IF_ICMPNE:    /* ..., value, value ==> ...                  */
1868                 case ICMD_IF_ACMPNE:    /* op1 = target JavaVM pc                     */
1869                 case ICMD_IF_LCMPNE:
1870
1871                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1872                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1873                         M_CMP(s1, s2);
1874                         emit_bne(cd, iptr->dst.block);
1875                         break;
1876
1877
1878                 case ICMD_IF_ICMPLT:    /* ..., value, value ==> ...                  */
1879                 case ICMD_IF_LCMPLT:
1880
1881                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1882                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1883                         M_CMP(s1, s2);
1884                         emit_blt(cd, iptr->dst.block);
1885                         break;
1886
1887                 case ICMD_IF_ICMPGT:    /* ..., value, value ==> ...                  */
1888                 case ICMD_IF_LCMPGT:
1889
1890                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1891                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1892                         M_CMP(s1, s2);
1893                         emit_bgt(cd, iptr->dst.block);
1894                         break;
1895
1896                 case ICMD_IF_ICMPLE:    /* ..., value, value ==> ...                  */
1897                 case ICMD_IF_LCMPLE:
1898
1899                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1900                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1901                         M_CMP(s1, s2);
1902                         emit_ble(cd, iptr->dst.block);
1903                         break;
1904
1905                 case ICMD_IF_ICMPGE:    /* ..., value, value ==> ...                  */
1906                 case ICMD_IF_LCMPGE:
1907
1908                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1909                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1910                         M_CMP(s1, s2);
1911                         emit_bge(cd, iptr->dst.block);
1912                         break;
1913
1914
1915                 case ICMD_LRETURN:      /* ..., retvalue ==> ...                      */
1916                 case ICMD_IRETURN:      /* ..., retvalue ==> ...                      */
1917
1918                         REPLACEMENT_POINT_RETURN(cd, iptr);
1919                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
1920                         M_LNGMOVE(s1, REG_RESULT);
1921                         goto nowperformreturn;
1922
1923                 case ICMD_ARETURN:      /* ..., retvalue ==> ...                      */
1924
1925                         REPLACEMENT_POINT_RETURN(cd, iptr);
1926                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
1927                         M_LNGMOVE(s1, REG_RESULT);
1928
1929 #ifdef ENABLE_VERIFIER
1930                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1931                                 codegen_addpatchref(cd, PATCHER_athrow_areturn,
1932                                                                         iptr->sx.s23.s2.uc, 0);
1933                         }
1934 #endif /* ENABLE_VERIFIER */
1935
1936                         goto nowperformreturn;
1937
1938                 case ICMD_FRETURN:      /* ..., retvalue ==> ...                      */
1939                 case ICMD_DRETURN:
1940
1941                         REPLACEMENT_POINT_RETURN(cd, iptr);
1942                         s1 = emit_load_s1(jd, iptr, REG_FRESULT);
1943                         M_FLTMOVE(s1, REG_FRESULT);
1944                         goto nowperformreturn;
1945
1946                 case ICMD_RETURN:      /* ...  ==> ...                                */
1947
1948                         REPLACEMENT_POINT_RETURN(cd, iptr);
1949
1950 nowperformreturn:
1951                         {
1952                         s4 i, p;
1953
1954                         p = cd->stackframesize;
1955
1956                         /* call trace function */
1957
1958 #if !defined(NDEBUG)
1959                         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
1960                                 emit_verbosecall_exit(jd);
1961 #endif
1962
1963 #if defined(ENABLE_THREADS)
1964                         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
1965                                 disp = dseg_add_functionptr(cd, LOCK_monitor_exit);
1966                                 M_ALD(REG_ITMP3, REG_PV, disp);
1967                                 M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
1968                                 M_MTCTR(REG_ITMP3);
1969
1970                                 /* we need to save the proper return value */
1971
1972                                 switch (iptr->opc) {
1973                                 case ICMD_LRETURN:
1974                                 case ICMD_IRETURN:
1975                                 case ICMD_ARETURN:
1976                                         /* fall through */
1977                                         M_LST(REG_RESULT , REG_SP, rd->memuse * 8 + 8);
1978                                         break;
1979                                 case ICMD_FRETURN:
1980                                         M_FST(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
1981                                         break;
1982                                 case ICMD_DRETURN:
1983                                         M_DST(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
1984                                         break;
1985                                 }
1986
1987                                 M_ALD(REG_A0, REG_SP, rd->memuse * 8);
1988                                 M_JSR;
1989
1990                                 /* and now restore the proper return value */
1991
1992                                 switch (iptr->opc) {
1993                                 case ICMD_LRETURN:
1994                                 case ICMD_IRETURN:
1995                                 case ICMD_ARETURN:
1996                                         /* fall through */
1997                                         M_LLD(REG_RESULT , REG_SP, rd->memuse * 8 + 8);
1998                                         break;
1999                                 case ICMD_FRETURN:
2000                                         M_FLD(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
2001                                         break;
2002                                 case ICMD_DRETURN:
2003                                         M_DLD(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
2004                                         break;
2005                                 }
2006                         }
2007 #endif
2008
2009                         /* restore return address                                         */
2010
2011                         if (!jd->isleafmethod) {
2012                                 /* ATTENTION: Don't use REG_ZERO (r0) here, as M_ALD
2013                                    may have a displacement overflow. */
2014
2015                                 M_ALD(REG_ITMP1, REG_SP, p * 8 + LA_LR_OFFSET);
2016                                 M_MTLR(REG_ITMP1);
2017                         }
2018
2019                         /* restore saved registers                                        */
2020
2021                         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
2022                                 p--; M_LLD(rd->savintregs[i], REG_SP, p * 8);
2023                         }
2024                         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
2025                                 p--; M_DLD(rd->savfltregs[i], REG_SP, p * 8);
2026                         }
2027
2028                         /* deallocate stack                                               */
2029
2030                         if (cd->stackframesize)
2031                                 M_LDA(REG_SP, REG_SP, cd->stackframesize * 8);
2032
2033                         M_RET;
2034                         ALIGNCODENOP;
2035                         }
2036                         break;
2037
2038
2039                 case ICMD_TABLESWITCH:  /* ..., index ==> ...                         */
2040                         {
2041                         s4 i, l;
2042                         branch_target_t *table;
2043
2044                         table = iptr->dst.table;
2045
2046                         l = iptr->sx.s23.s2.tablelow;
2047                         i = iptr->sx.s23.s3.tablehigh;
2048
2049                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2050                         if (l == 0) {
2051                                 M_INTMOVE(s1, REG_ITMP1);
2052                         } else if (l <= 32768) {
2053                                 M_LDA(REG_ITMP1, s1, -l);
2054                         } else {
2055                                 ICONST(REG_ITMP2, l);
2056                                 M_SUB(s1, REG_ITMP2, REG_ITMP1);
2057                         }
2058
2059                         /* number of targets */
2060                         i = i - l + 1;
2061
2062                         /* range check */
2063
2064                         M_CMPUI(REG_ITMP1, i - 1);
2065                         emit_bgt(cd, table[0].block);
2066
2067                         /* build jump table top down and use address of lowest entry */
2068
2069                         table += i;
2070
2071                         while (--i >= 0) {
2072                                 dseg_add_target(cd, table->block);
2073                                 --table;
2074                         }
2075
2076                         /* length of dataseg after last dseg_add_unique_target is used by load */
2077
2078                         M_SLL_IMM(REG_ITMP1, 3, REG_ITMP1);
2079                         M_IADD(REG_ITMP1, REG_PV, REG_ITMP2);
2080                         M_ALD(REG_ITMP2, REG_ITMP2, -(cd->dseglen));
2081                         M_MTCTR(REG_ITMP2);
2082                         M_RTS;
2083                         ALIGNCODENOP;
2084                         }
2085                         break;
2086
2087
2088                 case ICMD_LOOKUPSWITCH: /* ..., key ==> ...                           */
2089                         {
2090                         s4 i, val;
2091                         lookup_target_t *lookup;
2092
2093                         lookup = iptr->dst.lookup;
2094
2095                         i = iptr->sx.s23.s2.lookupcount;
2096
2097                         MCODECHECK((i<<3)+8);
2098                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2099                         while (--i >= 0) {
2100                                 val = lookup->value;
2101                                 if ((val >= -32768) && (val <= 32767)) {
2102                                         M_CMPI(s1, val);
2103
2104                                 } else {
2105                                         a = dseg_add_s4(cd, val);
2106                                         M_ILD(REG_ITMP2, REG_PV, a);
2107                                         M_CMP(s1, REG_ITMP2);
2108                                 }
2109                                 emit_beq(cd, lookup->target.block);
2110                                 ++lookup;
2111                         }
2112
2113                         emit_br(cd, iptr->sx.s23.s3.lookupdefault.block);
2114
2115                         ALIGNCODENOP;
2116                         break;
2117                         }
2118
2119
2120                 case ICMD_BUILTIN:      /* ..., [arg1, [arg2 ...]] ==> ...            */
2121
2122                         bte = iptr->sx.s23.s3.bte;
2123                         md = bte->md;
2124                         goto gen_method;
2125
2126                 case ICMD_INVOKESTATIC: /* ..., [arg1, [arg2 ...]] ==> ...            */
2127                 case ICMD_INVOKESPECIAL:/* ..., objectref, [arg1, [arg2 ...]] ==> ... */
2128                 case ICMD_INVOKEVIRTUAL:/* op1 = arg count, val.a = method pointer    */
2129                 case ICMD_INVOKEINTERFACE:
2130
2131                         REPLACEMENT_POINT_INVOKE(cd, iptr);
2132
2133                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2134                                 lm = NULL;
2135                                 um = iptr->sx.s23.s3.um;
2136                                 md = um->methodref->parseddesc.md;
2137                         }
2138                         else {
2139                                 lm = iptr->sx.s23.s3.fmiref->p.method;
2140                                 um = NULL;
2141                                 md = lm->parseddesc;
2142                         }
2143
2144 gen_method:
2145                         s3 = md->paramcount;
2146
2147                         MCODECHECK((s3 << 2) + 128);
2148
2149                         /* copy arguments to registers or stack location */
2150
2151                         for (s3 = s3 - 1; s3 >= 0; s3--) {
2152                                 var = VAR(iptr->sx.s23.s2.args[s3]);
2153                                 d   = md->params[s3].regoff;
2154
2155                                 if (var->flags & PREALLOC)
2156                                         continue;
2157
2158                                 if (IS_INT_LNG_TYPE(var->type)) {
2159                                         if (!md->params[s3].inmemory) {
2160                                                 s1 = emit_load(jd, iptr, var, d);
2161                                                 M_LNGMOVE(s1, d);
2162                                         }
2163                                         else {
2164                                                 s1 = emit_load(jd, iptr, var, REG_ITMP1);
2165                                                 M_LST(s1, REG_SP, d);
2166                                         }
2167                                 }
2168                                 else {
2169                                         if (!md->params[s3].inmemory) {
2170                                                 s1 = emit_load(jd, iptr, var, d);
2171                                                 M_FLTMOVE(s1, d);
2172                                         }
2173                                         else {
2174                                                 s1 = emit_load(jd, iptr, var, REG_FTMP1);
2175                                                 M_DST(s1, REG_SP, d);
2176                                         }
2177                                 }
2178                         }
2179
2180                         switch (iptr->opc) {
2181                         case ICMD_BUILTIN:
2182                                 disp = dseg_add_functionptr(cd, bte->fp);
2183                                 M_ALD(REG_PV, REG_PV, disp);
2184                                 M_ALD(REG_PV, REG_PV, 0);       /* TOC */
2185
2186                                 /* generate the actual call */
2187                                 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2188                                 M_MTCTR(REG_PV);
2189                                 M_JSR;
2190                                 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2191                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2192                                 M_MFLR(REG_ITMP1);
2193                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2194
2195                                 emit_exception_check(cd, iptr);
2196                                 break;
2197
2198
2199                         case ICMD_INVOKESPECIAL:
2200                                 emit_nullpointer_check(cd, iptr, REG_A0);
2201                                 /* fall through */
2202
2203                         case ICMD_INVOKESTATIC:
2204                                 if (lm == NULL) {
2205                                         disp = dseg_add_unique_address(cd, um);
2206
2207                                         codegen_addpatchref(cd, PATCHER_invokestatic_special,
2208                                                                                 um, disp);
2209                                 } else {
2210                                         disp = dseg_add_address(cd, lm->stubroutine);
2211                                 }
2212                                 M_ALD(REG_PV, REG_PV, disp);
2213
2214                                 /* generate the actual call */
2215
2216                                 M_MTCTR(REG_PV);
2217                                 M_JSR;
2218                                 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2219                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2220                                 M_MFLR(REG_ITMP1);
2221                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2222
2223                                 break;
2224                         case ICMD_INVOKEVIRTUAL:
2225                                 if (lm == NULL) {
2226                                         codegen_addpatchref(cd, PATCHER_invokevirtual, um, 0);
2227                                         s1 = 0;
2228                                 } else {
2229                                         s1 = OFFSET(vftbl_t, table[0]) +
2230                                                 sizeof(methodptr) * lm->vftblindex;
2231                                 }
2232
2233                                 /* implicit null-pointer check */
2234                                 M_ALD(REG_METHODPTR, REG_A0, OFFSET(java_object_t, vftbl));
2235                                 M_ALD(REG_PV, REG_METHODPTR, s1);
2236
2237                                 /* generate the actual call */
2238
2239                                 M_MTCTR(REG_PV);
2240                                 M_JSR;
2241                                 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2242                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2243                                 M_MFLR(REG_ITMP1);
2244                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2245                                 break;
2246
2247                         case ICMD_INVOKEINTERFACE:
2248                                 if (lm == NULL) {
2249                                         codegen_addpatchref(cd, PATCHER_invokeinterface, um, 0);
2250
2251                                         s1 = 0;
2252                                         s2 = 0;
2253
2254                                 } else {
2255                                         s1 = OFFSET(vftbl_t, interfacetable[0]) -
2256                                                 sizeof(methodptr*) * lm->class->index;
2257
2258                                         s2 = sizeof(methodptr) * (lm - lm->class->methods);
2259                                 }
2260
2261                                 /* implicit null-pointer check */
2262                                 M_ALD(REG_METHODPTR, REG_A0, OFFSET(java_object_t, vftbl));
2263                                 M_ALD(REG_METHODPTR, REG_METHODPTR, s1);
2264                                 M_ALD(REG_PV, REG_METHODPTR, s2);
2265
2266                                 /* generate the actual call */
2267
2268                                 M_MTCTR(REG_PV);
2269                                 M_JSR;
2270                                 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2271                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2272                                 M_MFLR(REG_ITMP1);
2273                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2274
2275                                 break;
2276                         }
2277                         /* store return value */
2278
2279                         d = md->returntype.type;
2280
2281                         if (d != TYPE_VOID) {
2282                                 if (IS_INT_LNG_TYPE(d)) {
2283                                         s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2284                                         M_MOV(REG_RESULT, s1);
2285                                 }
2286                                 else {
2287                                         s1 = codegen_reg_of_dst(jd, iptr, REG_FRESULT);
2288                                         M_FLTMOVE(REG_FRESULT, s1);
2289                                 }
2290                                 emit_store_dst(jd, iptr, s1);
2291                         }
2292                         break;
2293
2294                 case ICMD_CHECKCAST:  /* ..., objectref ==> ..., objectref            */
2295                                       /* val.a: (classinfo*) superclass               */
2296
2297                         /*  superclass is an interface:
2298                          *
2299                          *  OK if ((sub == NULL) ||
2300                          *         (sub->vftbl->interfacetablelength > super->index) &&
2301                          *         (sub->vftbl->interfacetable[-super->index] != NULL));
2302                          *
2303                          *  superclass is a class:
2304                          *
2305                          *  OK if ((sub == NULL) || (0
2306                          *         <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2307                          *         super->vftbl->diffvall));
2308                          */
2309
2310                         if (!(iptr->flags.bits & INS_FLAG_ARRAY)) {
2311                                 /* object type cast-check */
2312
2313                                 classinfo *super;
2314                                 s4         superindex;
2315
2316                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2317                                         super      = NULL;
2318                                         superindex = 0;
2319                                 }
2320                                 else {
2321                                         super      = iptr->sx.s23.s3.c.cls;
2322                                         superindex = super->index;
2323                                 }
2324
2325                                 if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2326                                         CODEGEN_CRITICAL_SECTION_NEW;
2327                                 }
2328
2329                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2330
2331                                 /* if class is not resolved, check which code to call */
2332
2333                                 if (super == NULL) {
2334                                         M_TST(s1);
2335                                         emit_label_beq(cd, BRANCH_LABEL_1);
2336                                         disp = dseg_add_unique_s4(cd, 0);                     /* super->flags */
2337
2338                                         codegen_addpatchref(cd,
2339                                                                                 PATCHER_checkcast_instanceof_flags,
2340                                                                                 iptr->sx.s23.s3.c.ref,
2341                                                                                 disp);
2342
2343                                         M_ILD(REG_ITMP2, REG_PV, disp);
2344                                         M_AND_IMM(REG_ITMP2, ACC_INTERFACE, REG_ITMP2);
2345
2346                                         emit_label_beq(cd, BRANCH_LABEL_2);
2347                                 }
2348
2349                                 /* interface checkcast code */
2350
2351                                 if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2352                                         if (super == NULL) {
2353                                                 codegen_addpatchref(cd,
2354                                                                                         PATCHER_checkcast_interface,
2355                                                                                         iptr->sx.s23.s3.c.ref,
2356                                                                                         0);
2357                                         } else {
2358                                                 M_TST(s1);
2359                                                 emit_label_beq(cd, BRANCH_LABEL_3);
2360                                         }
2361
2362                                         M_ALD(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
2363                                         M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, interfacetablelength));
2364                                         M_LDATST(REG_ITMP3, REG_ITMP3, -superindex);
2365                                         emit_classcast_check(cd, iptr, BRANCH_LE, REG_ITMP3, s1);
2366                                         M_ALD(REG_ITMP3, REG_ITMP2,
2367                                                   OFFSET(vftbl_t, interfacetable[0]) -
2368                                                   superindex * sizeof(methodptr*));
2369                                         M_TST(REG_ITMP3);
2370                                         emit_classcast_check(cd, iptr, BRANCH_EQ, REG_ITMP3, s1);
2371
2372                                         if (super == NULL)      {
2373                                                 emit_label_br(cd, BRANCH_LABEL_4);
2374                                         } else  {
2375                                                 emit_label(cd, BRANCH_LABEL_3);
2376                                         }
2377                                 }
2378
2379                                 /* class checkcast code */
2380
2381                                 if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2382                                         if (super == NULL) {
2383                                                 emit_label(cd, BRANCH_LABEL_2);
2384
2385                                                 disp = dseg_add_unique_address(cd, NULL);
2386                                                 codegen_addpatchref(cd, PATCHER_checkcast_class,
2387                                                                                         iptr->sx.s23.s3.c.ref,
2388                                                                                         disp);
2389                                         } else {
2390                                                 disp = dseg_add_address(cd, super->vftbl);
2391                                                 M_TST(s1);
2392                                                 emit_label_beq(cd, BRANCH_LABEL_5);
2393                                         }
2394
2395                                         M_ALD(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
2396
2397                                         CODEGEN_CRITICAL_SECTION_START;
2398
2399                                         M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2400                                         M_ALD(REG_ITMP2, REG_PV, disp);
2401                                         if (s1 != REG_ITMP1) {
2402                                                 M_ILD(REG_ITMP1, REG_ITMP2, OFFSET(vftbl_t, baseval));
2403                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2404
2405                                                 CODEGEN_CRITICAL_SECTION_END;
2406
2407                                                 M_SUB(REG_ITMP3, REG_ITMP1, REG_ITMP3);
2408                                                 M_EXTSW(REG_ITMP3, REG_ITMP3);
2409                                         } else {
2410                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, baseval));
2411                                                 M_SUB(REG_ITMP3, REG_ITMP2, REG_ITMP3);
2412                                                 M_EXTSW(REG_ITMP3, REG_ITMP3);
2413                                                 M_ALD(REG_ITMP2, REG_PV, disp);
2414                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2415
2416                                                 CODEGEN_CRITICAL_SECTION_END;
2417
2418                                         }
2419                                         M_CMPU(REG_ITMP3, REG_ITMP2);
2420                                         emit_classcast_check(cd, iptr, BRANCH_GT, REG_ITMP3, s1);
2421
2422                                         if (super != NULL)
2423                                                 emit_label(cd, BRANCH_LABEL_5);
2424                                 }
2425
2426                                 if (super == NULL) {
2427                                         emit_label(cd, BRANCH_LABEL_1);
2428                                         emit_label(cd, BRANCH_LABEL_4);
2429                                 }
2430                                 d = codegen_reg_of_dst(jd, iptr, s1);
2431
2432                         } else {
2433                                 /* array type cast-check */
2434
2435                                 s1 = emit_load_s1(jd, iptr, REG_A0);
2436                                 M_INTMOVE(s1, REG_A0);
2437
2438
2439                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2440                                         disp = dseg_add_unique_address(cd, NULL);
2441                                         codegen_addpatchref(cd, PATCHER_builtin_arraycheckcast,
2442                                                                                 iptr->sx.s23.s3.c.ref,
2443                                                                                 disp);
2444                                 } else {
2445                                         disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2446                                 }
2447
2448                                 M_ALD(REG_A1, REG_PV, disp);
2449                                 disp = dseg_add_functionptr(cd, BUILTIN_arraycheckcast);
2450                                 M_ALD(REG_ITMP2, REG_PV, disp);
2451                                 M_ALD(REG_ITMP2, REG_ITMP2, 0); /* TOC */
2452                                 M_MTCTR(REG_ITMP2);
2453                                 M_JSR;
2454                                 M_TST(REG_RESULT);
2455                                 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_RESULT, s1);
2456
2457                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2458                                 d = codegen_reg_of_dst(jd, iptr, s1);
2459                         }
2460                         M_INTMOVE(s1, d);
2461                         emit_store_dst(jd, iptr, d);
2462                         break;
2463
2464
2465                 case ICMD_INSTANCEOF: /* ..., objectref ==> ..., intresult            */
2466                                       /* val.a: (classinfo*) superclass               */
2467
2468                         /*  superclass is an interface:
2469                          *
2470                          *  return (sub != NULL) &&
2471                          *         (sub->vftbl->interfacetablelength > super->index) &&
2472                          *         (sub->vftbl->interfacetable[-super->index] != NULL);
2473                          *
2474                          *  superclass is a class:
2475                          *
2476                          *  return ((sub != NULL) && (0
2477                          *          <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2478                          *          super->vftbl->diffvall));
2479                          */
2480
2481                         {
2482                         classinfo *super;
2483                         s4         superindex;
2484
2485                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2486                                 super      = NULL;
2487                                 superindex = 0;
2488                         }
2489                         else {
2490                                 super      = iptr->sx.s23.s3.c.cls;
2491                                 superindex = super->index;
2492                         }
2493
2494                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2495                                 CODEGEN_CRITICAL_SECTION_NEW;
2496                         }
2497
2498                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2499                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
2500                         if (s1 == d) {
2501                                 M_MOV(s1, REG_ITMP1);
2502                                 s1 = REG_ITMP1;
2503                         }
2504
2505                         M_CLR(d);
2506
2507                         /* if class is not resolved, check which code to call */
2508
2509                         if (super == NULL) {
2510                                 M_TST(s1);
2511                                 emit_label_beq(cd, BRANCH_LABEL_1);
2512                                 disp = dseg_add_unique_s4(cd, 0);                     /* super->flags */
2513
2514                                 codegen_addpatchref(cd, PATCHER_checkcast_instanceof_flags,
2515                                                                         iptr->sx.s23.s3.c.ref, disp);
2516
2517                                 M_ILD(REG_ITMP3, REG_PV, disp);
2518                                 M_AND_IMM(REG_ITMP3, ACC_INTERFACE, REG_ITMP3);
2519                                 emit_label_beq(cd, BRANCH_LABEL_2);
2520                         }
2521
2522                         /* interface instanceof code */
2523
2524                         if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2525                                 if (super == NULL) {
2526                                         codegen_addpatchref(cd,
2527                                                                                 PATCHER_instanceof_interface,
2528                                                                                 iptr->sx.s23.s3.c.ref, 0);
2529
2530                                 } else {
2531                                         M_TST(s1);
2532                                         emit_label_beq(cd, BRANCH_LABEL_3);
2533                                 }
2534
2535                                 M_ALD(REG_ITMP1, s1, OFFSET(java_object_t, vftbl));
2536                                 M_ILD(REG_ITMP3, REG_ITMP1, OFFSET(vftbl_t, interfacetablelength));
2537                                 M_LDATST(REG_ITMP3, REG_ITMP3, -superindex);
2538                                 M_BLE(4);
2539                                 M_ALD(REG_ITMP1, REG_ITMP1,
2540                                           OFFSET(vftbl_t, interfacetable[0]) -
2541                                           superindex * sizeof(methodptr*));
2542                                 M_TST(REG_ITMP1);
2543                                 M_BEQ(1);
2544                                 M_IADD_IMM(REG_ZERO, 1, d);
2545
2546                                 if (super == NULL)      {
2547                                         emit_label_br(cd, BRANCH_LABEL_4);
2548                                 } else  {
2549                                         emit_label(cd, BRANCH_LABEL_3);
2550                                 }
2551                         }
2552
2553                         /* class instanceof code */
2554
2555                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2556
2557                                 if (super == NULL) {
2558                                         emit_label(cd, BRANCH_LABEL_2);
2559
2560                                         disp = dseg_add_unique_address(cd, NULL);
2561                                         codegen_addpatchref(cd, PATCHER_instanceof_class,
2562                                                                                 iptr->sx.s23.s3.c.ref,
2563                                                                                 disp);
2564
2565                                 } else {
2566                                         disp = dseg_add_address(cd, super->vftbl);
2567                                         M_TST(s1);
2568                                         emit_label_beq(cd, BRANCH_LABEL_5);
2569                                 }
2570
2571                                 M_ALD(REG_ITMP1, s1, OFFSET(java_object_t, vftbl));
2572                                 M_ALD(REG_ITMP2, REG_PV, disp);
2573
2574                                 CODEGEN_CRITICAL_SECTION_START;
2575
2576                                 M_ILD(REG_ITMP1, REG_ITMP1, OFFSET(vftbl_t, baseval));
2577                                 M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2578                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2579
2580                                 CODEGEN_CRITICAL_SECTION_END;
2581
2582                                 M_SUB(REG_ITMP1, REG_ITMP3, REG_ITMP1);
2583                                 M_EXTSW(REG_ITMP1, REG_ITMP1);
2584                                 M_CMPU(REG_ITMP1, REG_ITMP2);
2585                                 M_CLR(d);
2586                                 M_BGT(1);
2587                                 M_IADD_IMM(REG_ZERO, 1, d);
2588
2589                                 if (super != NULL)
2590                                         emit_label(cd, BRANCH_LABEL_5);
2591                         }
2592
2593                         if (super == NULL) {
2594                                 emit_label(cd, BRANCH_LABEL_1);
2595                                 emit_label(cd, BRANCH_LABEL_4);
2596                         }
2597
2598                         emit_store_dst(jd, iptr, d);
2599                         }
2600                         break;
2601
2602                 case ICMD_MULTIANEWARRAY:/* ..., cnt1, [cnt2, ...] ==> ..., arrayref  */
2603
2604                         /* check for negative sizes and copy sizes to stack if necessary  */
2605
2606                         MCODECHECK((iptr->s1.argcount << 2) + 128);
2607
2608                         for (s1 = iptr->s1.argcount; --s1 >= 0; ) {
2609
2610                                 var = VAR(iptr->sx.s23.s2.args[s1]);
2611
2612                                 /* copy SAVEDVAR sizes to stack */
2613
2614                                 if (!(var->flags & PREALLOC)) {
2615                                         s2 = emit_load(jd, iptr, var, REG_ITMP1);
2616 #if defined(__DARWIN__)
2617                                         M_LST(s2, REG_SP, LA_SIZE + (s1 + INT_ARG_CNT) * 8);
2618 #else
2619                                         M_LST(s2, REG_SP, LA_SIZE + (s1 + 3) * 8);
2620 #endif
2621                                 }
2622                         }
2623
2624                         /* a0 = dimension count */
2625
2626                         ICONST(REG_A0, iptr->s1.argcount);
2627
2628                         /* is patcher function set? */
2629
2630                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2631                                 disp = dseg_add_unique_address(cd, NULL);
2632
2633                                 codegen_addpatchref(cd, PATCHER_builtin_multianewarray,
2634                                                                         iptr->sx.s23.s3.c.ref, disp);
2635                         } else {
2636                                 disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2637                         }
2638
2639                         /* a1 = arraydescriptor */
2640
2641                         M_ALD(REG_A1, REG_PV, disp);
2642
2643                         /* a2 = pointer to dimensions = stack pointer */
2644
2645 #if defined(__DARWIN__)
2646                         M_LDA(REG_A2, REG_SP, LA_SIZE + INT_ARG_CNT * 8);
2647 #else
2648                         M_LDA(REG_A2, REG_SP, LA_SIZE + 3 * 8);
2649 #endif
2650
2651                         disp = dseg_add_functionptr(cd, BUILTIN_multianewarray);
2652                         M_ALD(REG_ITMP3, REG_PV, disp);
2653                         M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
2654                         M_MTCTR(REG_ITMP3);
2655                         M_JSR;
2656
2657                         /* check for exception before result assignment */
2658                         emit_exception_check(cd, iptr);
2659
2660                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2661                         M_INTMOVE(REG_RESULT, d);
2662                         emit_store_dst(jd, iptr, d);
2663                         break;
2664
2665                 default:
2666                         exceptions_throw_internalerror("Unknown ICMD %d during code generation",
2667                                                                                    iptr->opc);
2668                         return false;
2669         } /* switch */
2670
2671         } /* for instruction */
2672
2673         } /* if (bptr -> flags >= BBREACHED) */
2674         } /* for basic block */
2675
2676         dseg_createlinenumbertable(cd);
2677
2678         /* generate stubs */
2679
2680         emit_patcher_stubs(jd);
2681
2682         /* everything's ok */
2683
2684         return true;
2685 }
2686
2687
2688 /* codegen_emit_stub_compiler **************************************************
2689
2690    Emits a stub routine which calls the compiler.
2691
2692 *******************************************************************************/
2693
2694 void codegen_emit_stub_compiler(jitdata *jd)
2695 {
2696         methodinfo  *m;
2697         codegendata *cd;
2698
2699         /* get required compiler data */
2700
2701         m  = jd->m;
2702         cd = jd->cd;
2703
2704         /* code for the stub */
2705
2706         M_ALD_INTERN(REG_ITMP1, REG_PV, -2 * SIZEOF_VOID_P);
2707         M_ALD_INTERN(REG_PV, REG_PV, -3 * SIZEOF_VOID_P);
2708         M_MTCTR(REG_PV);
2709         M_RTS;
2710 }
2711
2712
2713 /* codegen_emit_stub_native ****************************************************
2714
2715    Emits a stub routine which calls a native method.
2716
2717 *******************************************************************************/
2718
2719 void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f)
2720 {
2721         methodinfo  *m;
2722         codeinfo    *code;
2723         codegendata *cd;
2724         methoddesc  *md;
2725         s4           nativeparams;
2726         s4           i, j;
2727         s4           t;
2728         s4           s1, s2, disp;
2729         s4           funcdisp;
2730
2731         /* get required compiler data */
2732
2733         m    = jd->m;
2734         code = jd->code;
2735         cd   = jd->cd;
2736
2737         /* set some variables */
2738
2739         md = m->parseddesc;
2740         nativeparams = (m->flags & ACC_STATIC) ? 2 : 1;
2741
2742         /* calculate stackframe size */
2743
2744         cd->stackframesize =
2745                 sizeof(stackframeinfo) / SIZEOF_VOID_P +
2746                 sizeof(localref_table) / SIZEOF_VOID_P +
2747                 4 +                            /* 4 stackframeinfo arguments (darwin)*/
2748                 nmd->paramcount  +
2749                 nmd->memuse;
2750
2751 /*      cd->stackframesize = (cd->stackframesize + 3) & ~3;*/ /* keep stack 16-byte aligned */
2752
2753         /* create method header */
2754
2755         (void) dseg_add_unique_address(cd, code);                      /* CodeinfoPointer */
2756         (void) dseg_add_unique_s4(cd, cd->stackframesize * 8);             /* FrameSize       */
2757         (void) dseg_add_unique_s4(cd, 0);                              /* IsSync          */
2758         (void) dseg_add_unique_s4(cd, 0);                              /* IsLeaf          */
2759         (void) dseg_add_unique_s4(cd, 0);                              /* IntSave         */
2760         (void) dseg_add_unique_s4(cd, 0);                              /* FltSave         */
2761         (void) dseg_addlinenumbertablesize(cd);
2762         (void) dseg_add_unique_s4(cd, 0);                              /* ExTableSize     */
2763
2764         /* generate code */
2765
2766         M_MFLR(REG_ZERO);
2767         M_AST_INTERN(REG_ZERO, REG_SP, LA_LR_OFFSET);
2768         M_STDU(REG_SP, REG_SP, -(cd->stackframesize * 8));
2769
2770 #if !defined(NDEBUG)
2771         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
2772                 emit_verbosecall_enter(jd);
2773 #endif
2774
2775         /* get function address (this must happen before the stackframeinfo) */
2776
2777         funcdisp = dseg_add_functionptr(cd, f);
2778
2779 #if !defined(WITH_STATIC_CLASSPATH)
2780         if (f == NULL) {
2781                 codegen_addpatchref(cd, PATCHER_resolve_native, m, funcdisp);
2782         }
2783 #endif
2784
2785         /* save integer and float argument registers */
2786
2787         j = 0;
2788
2789         for (i = 0; i < md->paramcount; i++) {
2790                 t = md->paramtypes[i].type;
2791
2792                 if (IS_INT_LNG_TYPE(t)) {
2793                         if (!md->params[i].inmemory) {
2794                                 s1 = md->params[i].regoff;
2795                                 M_LST(s1, REG_SP, LA_SIZE + PA_SIZE + 4*8 + j * 8);
2796                                 j++;
2797                         }
2798                 }
2799         }
2800
2801         for (i = 0; i < md->paramcount; i++) {
2802                 if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
2803                         if (!md->params[i].inmemory) {
2804                                 s1 = md->params[i].regoff;
2805                                 M_DST(s1, REG_SP, LA_SIZE + PA_SIZE + 4*8 + j * 8);
2806                                 j++;
2807                         }
2808                 }
2809         }
2810
2811         /* create native stack info */
2812
2813         M_AADD_IMM(REG_SP, cd->stackframesize * 8, REG_A0);
2814         M_MOV(REG_PV, REG_A1);
2815         M_AADD_IMM(REG_SP, cd->stackframesize * 8, REG_A2);
2816         M_ALD(REG_A3, REG_SP, cd->stackframesize * 8 + LA_LR_OFFSET);
2817         disp = dseg_add_functionptr(cd, codegen_start_native_call);
2818
2819         M_ALD(REG_ITMP1, REG_PV, disp);
2820         M_ALD(REG_ITMP1, REG_ITMP1, 0);         /* TOC */
2821         M_MTCTR(REG_ITMP1);
2822         M_JSR;
2823
2824         /* restore integer and float argument registers */
2825
2826         j = 0;
2827
2828         for (i = 0; i < md->paramcount; i++) {
2829                 t = md->paramtypes[i].type;
2830
2831                 if (IS_INT_LNG_TYPE(t)) {
2832                         if (!md->params[i].inmemory) {
2833                                 s1 = md->params[i].regoff;
2834                                 M_LLD(s1, REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + j * 8);
2835                                 j++;
2836                         }
2837                 }
2838         }
2839
2840         for (i = 0; i < md->paramcount; i++) {
2841                 if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
2842                         if (!md->params[i].inmemory) {
2843                                 s1 = md->params[i].regoff;
2844                                 M_DLD(s1, REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + j * 8);
2845                                 j++;
2846                         }
2847                 }
2848         }
2849
2850         /* copy or spill arguments to new locations */
2851
2852         for (i = md->paramcount - 1, j = i + nativeparams; i >= 0; i--, j--) {
2853                 t = md->paramtypes[i].type;
2854
2855                 if (IS_INT_LNG_TYPE(t)) {
2856                         if (!md->params[i].inmemory) {
2857                                 s1 = md->params[i].regoff;
2858                                 s2 = nmd->params[j].regoff;
2859
2860                                 if (!nmd->params[j].inmemory)
2861                                         M_INTMOVE(s1, s2);
2862                                 else
2863                                         M_LST(s1, REG_SP, s2);
2864                         }
2865                         else {
2866                                 s1 = md->params[i].regoff + cd->stackframesize * 8;
2867                                 s2 = nmd->params[j].regoff;
2868
2869                                 M_LLD(REG_ITMP1, REG_SP, s1);
2870                                 M_LST(REG_ITMP1, REG_SP, s2);
2871                         }
2872                 }
2873                 else {
2874                         /* We only copy spilled float arguments, as the float
2875                            argument registers keep unchanged. */
2876
2877                         if (md->params[i].inmemory) {
2878                                 s1 = md->params[i].regoff + cd->stackframesize * 8;
2879                                 s2 = nmd->params[j].regoff;
2880
2881                                 M_DLD(REG_FTMP1, REG_SP, s1);
2882
2883                                 if (IS_2_WORD_TYPE(t))
2884                                         M_DST(REG_FTMP1, REG_SP, s2);
2885                                 else
2886                                         M_FST(REG_FTMP1, REG_SP, s2 + 4);
2887                         }
2888                 }
2889         }
2890
2891         /* put class into second argument register */
2892
2893         if (m->flags & ACC_STATIC) {
2894                 disp = dseg_add_unique_address(cd, m->class);
2895                 M_ALD(REG_A1, REG_PV, disp);
2896         }
2897
2898         /* put env into first argument register */
2899
2900         disp = dseg_add_unique_address(cd, _Jv_env);
2901         M_ALD(REG_A0, REG_PV, disp);
2902
2903         /* generate the actual native call */
2904         /* native functions have a different TOC for sure */
2905
2906         M_AST(REG_TOC, REG_SP, 40);     /* save old TOC */
2907         M_ALD(REG_ITMP3, REG_PV, funcdisp);
2908         M_ALD(REG_TOC, REG_ITMP3, 8);   /* load TOC from func. descriptor */
2909         M_ALD(REG_ITMP3, REG_ITMP3, 0);
2910         M_MTCTR(REG_ITMP3);
2911         M_JSR;
2912         M_ALD(REG_TOC, REG_SP, 40);     /* restore TOC */
2913
2914         /* save return value */
2915
2916         if (md->returntype.type != TYPE_VOID) {
2917                 if (IS_INT_LNG_TYPE(md->returntype.type)) {
2918                         M_LST(REG_RESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
2919                 }
2920                 else {
2921                         M_DST(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
2922                 }
2923         }
2924
2925 #if !defined(NDEBUG)
2926         /* print call trace */
2927
2928         if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
2929                 emit_verbosecall_exit(jd);
2930         }
2931 #endif
2932
2933         /* remove native stackframe info */
2934
2935         M_AADD_IMM(REG_SP, cd->stackframesize * 8, REG_A0);
2936         disp = dseg_add_functionptr(cd, codegen_finish_native_call);
2937         M_ALD(REG_ITMP1, REG_PV, disp);
2938         M_ALD(REG_ITMP1, REG_ITMP1, 0); /* XXX what about TOC? */
2939         M_MTCTR(REG_ITMP1);
2940         M_JSR;
2941         M_MOV(REG_RESULT, REG_ITMP1_XPTR);
2942
2943         /* restore return value */
2944
2945         if (md->returntype.type != TYPE_VOID) {
2946                 if (IS_INT_LNG_TYPE(md->returntype.type)) {
2947                         M_LLD(REG_RESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
2948                 }
2949                 else {
2950 /*                      if (IS_2_WORD_TYPE(md->returntype.type)) */
2951                                 M_DLD(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
2952 /*                      else
2953                                 M_FLD(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8); F XXX
2954                                 */
2955                 }
2956         }
2957
2958         M_ALD(REG_ITMP2_XPC, REG_SP, cd->stackframesize * 8 + LA_LR_OFFSET);
2959         M_MTLR(REG_ITMP2_XPC);
2960         M_LDA(REG_SP, REG_SP, cd->stackframesize * 8); /* remove stackframe           */
2961
2962         /* check for exception */
2963
2964         M_TST(REG_ITMP1_XPTR);
2965         M_BNE(1);                           /* if no exception then return        */
2966
2967         M_RET;
2968
2969         /* handle exception */
2970
2971         M_LADD_IMM(REG_ITMP2_XPC, -4, REG_ITMP2_XPC);  /* exception address       */
2972
2973         disp = dseg_add_functionptr(cd, asm_handle_nat_exception);
2974         M_ALD(REG_ITMP3, REG_PV, disp);
2975         M_MTCTR(REG_ITMP3);
2976         M_RTS;
2977
2978         /* generate patcher stub call code */
2979
2980         emit_patcher_stubs(jd);
2981 }
2982
2983
2984
2985
2986 /*
2987  * These are local overrides for various environment variables in Emacs.
2988  * Please do not remove this and leave it at the end of the file, where
2989  * Emacs will automagically detect them.
2990  * ---------------------------------------------------------------------
2991  * Local variables:
2992  * mode: c
2993  * indent-tabs-mode: t
2994  * c-basic-offset: 4
2995  * tab-width: 4
2996  * End:
2997  * vim:noexpandtab:sw=4:ts=4:
2998  */