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 */
  26
  27
  28 #include "config.h"
  29
  30 #include <assert.h>
  31 #include <stdint.h>
  32 #include <stdio.h>
  33 #include <signal.h>
  34
  35 #include "vm/types.h"
  36
  37 #include "md-abi.h"
  38
  39 #include "vm/jit/powerpc64/arch.h"
  40 #include "vm/jit/powerpc64/codegen.h"
  41
  42 #include "mm/memory.h"
  43
  44 #include "native/localref.h"
  45 #include "native/native.h"
  46
  47 #include "threads/lock-common.h"
  48
  49 #include "vm/builtin.h"
  50 #include "vm/exceptions.h"
  51 #include "vm/global.h"
  52 #include "vm/stringlocal.h"
  53 #include "vm/vm.h"
  54
  55 #include "vm/jit/abi.h"
  56 #include "vm/jit/abi-asm.h"
  57 #include "vm/jit/md.h"
  58 #include "vm/jit/asmpart.h"
  59 #include "vm/jit/codegen-common.h"
  60 #include "vm/jit/dseg.h"
  61 #include "vm/jit/emit-common.h"
  62 #include "vm/jit/jit.h"
  63 #include "vm/jit/parse.h"
  64 #include "vm/jit/patcher.h"
  65 #include "vm/jit/reg.h"
  66 #include "vm/jit/replace.h"
  67 #include "vm/jit/stacktrace.h"
  68
  69 #include "vmcore/loader.h"
  70 #include "vmcore/options.h"
  71
  72 #if defined(ENABLE_LSRA)
  73 # include "vm/jit/allocator/lsra.h"
  74 #endif
  75
  76
  77 /* codegen_emit ****************************************************************
  78
  79    Generates machine code.
  80
  81 *******************************************************************************/
  82
  83 bool codegen_emit(jitdata *jd)
  84 {
  85         methodinfo         *m;
  86         codeinfo           *code;
  87         codegendata        *cd;
  88         registerdata       *rd;
  89         s4                  len, s1, s2, s3, d, disp;
  90         ptrint              a;
  91         varinfo            *var;
  92         basicblock         *bptr;
  93         instruction        *iptr;
  94         exception_entry    *ex;
  95         u2                  currentline;
  96         methodinfo         *lm;             /* local methodinfo for ICMD_INVOKE*  */
  97         unresolved_method  *um;
  98         builtintable_entry *bte;
  99         methoddesc         *md;
 100         s4                  fieldtype;
 101         s4                  varindex;
 102         unresolved_field   *uf;
 103         fieldinfo          *fi;
 104
 105         /* get required compiler data */
 106
 107         m    = jd->m;
 108         code = jd->code;
 109         cd   = jd->cd;
 110         rd   = jd->rd;
 111
 112         /* prevent compiler warnings */
 113
 114         d   = 0;
 115         lm  = NULL;
 116         um  = NULL;
 117         bte = NULL;
 118         uf  = NULL;
 119
 120         {
 121         s4 i, p, t, l;
 122         s4 savedregs_num;
 123
 124         savedregs_num = 0;
 125
 126         /* space to save used callee saved registers */
 127
 128         savedregs_num += (INT_SAV_CNT - rd->savintreguse);
 129         savedregs_num += (FLT_SAV_CNT - rd->savfltreguse);
 130
 131         cd->stackframesize = rd->memuse + savedregs_num;
 132
 133 #if defined(ENABLE_THREADS)
 134         /* space to save argument of monitor_enter and Return Values to survive */
 135     /* monitor_exit. The stack position for the argument can not be shared  */
 136         /* with place to save the return register on PPC64, since both values     */
 137         /* reside in R3 */
 138         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
 139                 /* reserve 2 slots for long/double return values for monitorexit */
 140                 cd->stackframesize += 2;
 141         }
 142
 143 #endif
 144
 145         /* create method header */
 146
 147         /* align stack to 16-bytes */
 148
 149 /* FIXME */
 150 /*      if (!m->isleafmethod || opt_verbosecall) */
 151 /*              stackframesize = (stackframesize + 3) & ~3;
 152 */
 153 /*      else if (m->isleafmethod && (stackframesize == LA_WORD_SIZE)) */
 154 /*              stackframesize = 0; */
 155
 156         (void) dseg_add_unique_address(cd, code);                      /* CodeinfoPointer */
 157         (void) dseg_add_unique_s4(cd, cd->stackframesize * 8);             /* FrameSize       */
 158
 159 #if defined(ENABLE_THREADS)
 160         /* IsSync contains the offset relative to the stack pointer for the
 161            argument of monitor_exit used in the exception handler. Since the
 162            offset could be zero and give a wrong meaning of the flag it is
 163            offset by one.
 164         */
 165
 166         if (checksync && (m->flags & ACC_SYNCHRONIZED))
 167                 (void) dseg_add_unique_s4(cd, (rd->memuse + 1) * 8);       /* IsSync          */
 168         else
 169 #endif
 170                 (void) dseg_add_unique_s4(cd, 0);                          /* IsSync          */
 171
 172         (void) dseg_add_unique_s4(cd, jd->isleafmethod);                /* IsLeaf          */
 173         (void) dseg_add_unique_s4(cd, INT_SAV_CNT - rd->savintreguse); /* IntSave         */
 174         (void) dseg_add_unique_s4(cd, FLT_SAV_CNT - rd->savfltreguse); /* FltSave         */
 175
 176         dseg_addlinenumbertablesize(cd);
 177
 178         (void) dseg_add_unique_s4(cd, jd->exceptiontablelength);       /* ExTableSize     */
 179
 180         /* create exception table */
 181
 182         for (ex = jd->exceptiontable; ex != NULL; ex = ex->down) {
 183                 dseg_add_target(cd, ex->start);
 184                 dseg_add_target(cd, ex->end);
 185                 dseg_add_target(cd, ex->handler);
 186                 (void) dseg_add_unique_address(cd, ex->catchtype.any);
 187         }
 188
 189         /* create stack frame (if necessary) */
 190
 191         if (!jd->isleafmethod) {
 192                 M_MFLR(REG_ZERO);
 193                 M_AST(REG_ZERO, REG_SP, LA_LR_OFFSET);
 194         }
 195
 196         if (cd->stackframesize)
 197                 M_STDU(REG_SP, REG_SP, -cd->stackframesize * 8);
 198
 199         /* save return address and used callee saved registers */
 200
 201         p = cd->stackframesize;
 202         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
 203                 p--; M_LST(rd->savintregs[i], REG_SP, p * 8);
 204         }
 205         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
 206                 p --; M_DST(rd->savfltregs[i], REG_SP, p * 8);
 207         }
 208
 209         /* take arguments out of register or stack frame */
 210
 211         md = m->parseddesc;
 212
 213         for (p = 0, l = 0; p < md->paramcount; p++) {
 214                 t = md->paramtypes[p].type;
 215                 varindex = jd->local_map[l*5 + t];
 216                 l++;
 217                 if (IS_2_WORD_TYPE(t))    /* increment local counter for 2 word types */
 218                         l++;
 219                 if (varindex == UNUSED)
 220                         continue;
 221
 222                 var = VAR(varindex);
 223                 s1  = md->params[p].regoff;
 224
 225                 if (IS_INT_LNG_TYPE(t)) {
 226                         if (!md->params[p].inmemory) {
 227                                 if (!IS_INMEMORY(var->flags))
 228                                         M_INTMOVE(s1, var->vv.regoff);
 229                                 else
 230                                         M_LST(s1, REG_SP, var->vv.regoff);
 231                         }
 232                         else {
 233                                 if (!IS_INMEMORY(var->flags))
 234                                         M_LLD(var->vv.regoff, REG_SP, cd->stackframesize * 8 + s1);
 235                                 else
 236                                         var->vv.regoff = cd->stackframesize * 8 + s1;
 237                         }
 238                 }
 239                 else {
 240                         if (!md->params[p].inmemory) {
 241                                 if (!IS_INMEMORY(var->flags))
 242                                         M_FLTMOVE(s1, var->vv.regoff);
 243                                 else
 244                                         M_DST(s1, REG_SP, var->vv.regoff);
 245                         }
 246                         else {
 247                                 if (!(var->flags & INMEMORY)) {
 248                                         if (IS_2_WORD_TYPE(t))
 249                                                 M_DLD(var->vv.regoff, REG_SP, cd->stackframesize * 8 + s1);
 250                                         else
 251                                                 M_DLD(var->vv.regoff, REG_SP, cd->stackframesize * 8 + s1);
 252                                 }
 253                                 else
 254                                         var->vv.regoff = cd->stackframesize * 8 + s1;
 255                         }
 256                 }
 257         }
 258
 259         /* save monitorenter argument */
 260
 261 #if defined(ENABLE_THREADS)
 262
 263         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
 264
 265                 /* stackoffset for argument used for LOCK_monitor_exit */
 266                 s1 = rd->memuse;
 267
 268 #if !defined (NDEBUG)
 269                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 270                         M_AADD_IMM(REG_SP, -((LA_SIZE_IN_POINTERS + PA_SIZE_IN_POINTERS + ARG_CNT) * 8), REG_SP);
 271
 272                         for (p = 0; p < INT_ARG_CNT; p++)
 273                                 M_LST(abi_registers_integer_argument[p], REG_SP, LA_SIZE + PA_SIZE + p * 8);
 274
 275                         for (p = 0; p < FLT_ARG_CNT; p++)
 276                                 M_DST(abi_registers_float_argument[p], REG_SP, LA_SIZE + PA_SIZE + (INT_ARG_CNT + p) * 8);
 277
 278                         /* used for LOCK_monitor_exit, adopt size because we created another stackframe */
 279                         s1 += (LA_SIZE_IN_POINTERS + PA_SIZE_IN_POINTERS + ARG_CNT);
 280                 }
 281 #endif
 282
 283                 p = dseg_add_functionptr(cd, LOCK_monitor_enter);
 284                 M_ALD(REG_ITMP3, REG_PV, p);
 285                 M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
 286                 M_MTCTR(REG_ITMP3);
 287
 288                 /* get or test the lock object */
 289
 290                 if (m->flags & ACC_STATIC) {
 291                         p = dseg_add_address(cd, &m->class->object.header);
 292                         M_ALD(REG_A0, REG_PV, p);
 293                 }
 294                 else {
 295                         M_TST(REG_A0);
 296                         M_BNE(1);
 297                         M_ALD_INTERN(REG_ZERO, REG_ZERO, EXCEPTION_HARDWARE_NULLPOINTER);
 298                 }
 299
 300                 M_AST(REG_A0, REG_SP, s1 * 8);                      /* rd->memuse * 8 */
 301                 M_JSR;
 302
 303 #if !defined(NDEBUG)
 304                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 305                         for (p = 0; p < INT_ARG_CNT; p++)
 306                                 M_LLD(abi_registers_integer_argument[p], REG_SP, LA_SIZE + PA_SIZE + p * 8);
 307
 308                         for (p = 0; p < FLT_ARG_CNT; p++)
 309                                 M_DLD(abi_registers_float_argument[p], REG_SP, LA_SIZE + PA_SIZE + (INT_ARG_CNT + p) * 8);
 310
 311                         M_AADD_IMM(REG_SP, (LA_SIZE_IN_POINTERS + PA_SIZE_IN_POINTERS + ARG_CNT) * 8, REG_SP);
 312                 }
 313 #endif
 314         }
 315 #endif
 316
 317         /* call trace function */
 318 #if !defined (NDEBUG)
 319         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
 320                 emit_verbosecall_enter(jd);
 321 #endif
 322
 323         }
 324
 325         /* end of header generation */
 326
 327         /* create replacement points */
 328
 329         REPLACEMENT_POINTS_INIT(cd, jd);
 330
 331         /* walk through all basic blocks */
 332
 333         for (bptr = jd->basicblocks; bptr != NULL; bptr = bptr->next) {
 334
 335                 bptr->mpc = (s4) (cd->mcodeptr - cd->mcodebase);
 336
 337                 if (bptr->flags >= BBREACHED) {
 338
 339                 /* branch resolving */
 340                 codegen_resolve_branchrefs(cd, bptr);
 341
 342                 /* handle replacement points */
 343
 344                 REPLACEMENT_POINT_BLOCK_START(cd, bptr);
 345
 346                 /* copy interface registers to their destination */
 347
 348                 len = bptr->indepth;
 349                 MCODECHECK(128+len);
 350
 351 #if defined(ENABLE_LSRA)
 352                 if (opt_lsra) {
 353                         while (len) {
 354                                 len--;
 355                                 var = VAR(bptr->invars[len]);
 356                                 if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 357                                         /* d = reg_of_var(m, var, REG_ITMP1); */
 358                                         if (!(var->flags & INMEMORY))
 359                                                 d = var->vv.regoff;
 360                                         else
 361                                                 d = REG_ITMP1;
 362                                         M_INTMOVE(REG_ITMP1, d);
 363                                         emit_store(jd, NULL, var, d);
 364                                 }
 365                         }
 366                 } else {
 367 #endif
 368                 while (len) {
 369                         len--;
 370                         var = VAR(bptr->invars[len]);
 371                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 372                                 d = codegen_reg_of_var(0, var, REG_ITMP1);
 373                                 M_INTMOVE(REG_ITMP1, d);
 374                                 emit_store(jd, NULL, var, d);
 375                         }
 376                         else {
 377                                 assert((var->flags & INOUT));
 378                         }
 379                 }
 380
 381 #if defined(ENABLE_LSRA)
 382                 }
 383 #endif
 384                 /* walk through all instructions */
 385
 386                 len = bptr->icount;
 387                 currentline = 0;
 388
 389                 for (iptr = bptr->iinstr; len > 0; len--, iptr++) {
 390                         if (iptr->line != currentline) {
 391                                 dseg_addlinenumber(cd, iptr->line);
 392                                 currentline = iptr->line;
 393                         }
 394
 395                         MCODECHECK(128);   /* an instruction usually needs < 64 words      */
 396
 397                 switch (iptr->opc) {
 398                 case ICMD_NOP:        /* ...  ==> ...                                 */
 399                 case ICMD_POP:        /* ..., value  ==> ...                          */
 400                 case ICMD_POP2:       /* ..., value, value  ==> ...                   */
 401                         break;
 402
 403                 case ICMD_INLINE_START:
 404
 405                         REPLACEMENT_POINT_INLINE_START(cd, iptr);
 406                         break;
 407
 408                 case ICMD_INLINE_BODY:
 409
 410                         REPLACEMENT_POINT_INLINE_BODY(cd, iptr);
 411                         dseg_addlinenumber_inline_start(cd, iptr);
 412                         dseg_addlinenumber(cd, iptr->line);
 413                         break;
 414
 415                 case ICMD_INLINE_END:
 416
 417                         dseg_addlinenumber_inline_end(cd, iptr);
 418                         dseg_addlinenumber(cd, iptr->line);
 419                         break;
 420
 421                 case ICMD_CHECKNULL:  /* ..., objectref  ==> ..., objectref           */
 422
 423                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 424                         M_TST(s1);
 425                         M_BEQ(0);
 426                         emit_nullpointer_check(cd, iptr, s1);
 427                         break;
 428
 429                 /* constant operations ************************************************/
 430
 431                 case ICMD_ICONST:     /* ...  ==> ..., constant                       */
 432
 433                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 434                         ICONST(d, iptr->sx.val.i);
 435                         emit_store_dst(jd, iptr, d);
 436                         break;
 437
 438                 case ICMD_LCONST:     /* ...  ==> ..., constant                       */
 439
 440                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 441                         LCONST(d, iptr->sx.val.l);
 442                         emit_store_dst(jd, iptr, d);
 443                         break;
 444
 445                 case ICMD_FCONST:     /* ...  ==> ..., constant                       */
 446
 447                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 448                         a = dseg_add_float(cd, iptr->sx.val.f);
 449                         M_FLD(d, REG_PV, a);
 450                         emit_store_dst(jd, iptr, d);
 451                         break;
 452
 453                 case ICMD_DCONST:     /* ...  ==> ..., constant                       */
 454
 455                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 456                         a = dseg_add_double(cd, iptr->sx.val.d);
 457                         M_DLD(d, REG_PV, a);
 458                         emit_store_dst(jd, iptr, d);
 459                         break;
 460
 461                 case ICMD_ACONST:     /* ...  ==> ..., constant                       */
 462
 463                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 464
 465                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
 466                                 disp = dseg_add_unique_address(cd, iptr->sx.val.c.ref);
 467                                 codegen_addpatchref(cd, PATCHER_aconst,
 468                                                                         iptr->sx.val.c.ref,
 469                                                                     disp);
 470                         } else  {
 471                                 disp = dseg_add_address(cd, iptr->sx.val.anyptr);
 472                         }
 473                         M_ALD(d, REG_PV, disp);
 474                         emit_store_dst(jd, iptr, d);
 475                         break;
 476
 477
 478                 /* load/store/copy/move operations ************************************/
 479
 480                 case ICMD_ILOAD:      /* ...  ==> ..., content of local variable      */
 481                 case ICMD_ALOAD:      /* s1.localindex = local variable               */
 482                 case ICMD_LLOAD:
 483                 case ICMD_FLOAD:
 484                 case ICMD_DLOAD:
 485                 case ICMD_ISTORE:     /* ..., value  ==> ...                          */
 486                 case ICMD_LSTORE:
 487                 case ICMD_FSTORE:
 488                 case ICMD_DSTORE:
 489                 case ICMD_COPY:
 490                 case ICMD_MOVE:
 491
 492                         emit_copy(jd, iptr);
 493                         break;
 494
 495                 case ICMD_ASTORE:
 496                         if (!(iptr->flags.bits & INS_FLAG_RETADDR))
 497                                 emit_copy(jd, iptr);
 498                         break;
 499
 500
 501                 /* integer operations *************************************************/
 502
 503                 case ICMD_INEG:       /* ..., value  ==> ..., - value                 */
 504                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 505                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 506                         M_NEG(s1, d);
 507                         M_EXTSW(d, d);
 508                         emit_store_dst(jd, iptr, d);
 509                         break;
 510
 511                 case ICMD_LNEG:
 512                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 513                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 514                         M_NEG(s1, d);
 515                         emit_store_dst(jd, iptr, d);
 516                         break;
 517
 518
 519                 case ICMD_I2L:        /* ..., value  ==> ..., value                   */
 520
 521                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 522                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 523                         M_INTMOVE(s1, d);
 524                         emit_store_dst(jd, iptr, d);
 525                         break;
 526
 527                 case ICMD_L2I:        /* ..., value  ==> ..., value                   */
 528
 529                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 530                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 531                         M_ISEXT(s1, d);
 532                         emit_store_dst(jd, iptr, d);
 533                         break;
 534
 535                 case ICMD_INT2BYTE:   /* ..., value  ==> ..., value                   */
 536
 537                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 538                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 539                         M_BSEXT(s1, d);
 540                         emit_store_dst(jd, iptr, d);
 541                         break;
 542
 543                 case ICMD_INT2CHAR:   /* ..., value  ==> ..., value                   */
 544
 545                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 546                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 547                         M_CZEXT(s1, d);
 548                         emit_store_dst(jd, iptr, d);
 549                         break;
 550
 551                 case ICMD_INT2SHORT:  /* ..., value  ==> ..., value                   */
 552
 553                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 554                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 555                         M_SSEXT(s1, d);
 556                         emit_store_dst(jd, iptr, d);
 557                         break;
 558
 559
 560                 case ICMD_IADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 561
 562                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 563                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 564                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 565                         M_IADD(s1, s2, d);
 566                         M_EXTSW(d,d);
 567                         emit_store_dst(jd, iptr, d);
 568                         break;
 569
 570                 case ICMD_IINC:
 571                 case ICMD_IADDCONST:
 572
 573                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 574                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 575                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767)) {
 576                                 M_IADD_IMM(s1, iptr->sx.val.i, d);
 577                         } else {
 578                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 579                                 M_IADD(s1, REG_ITMP2, d);
 580                         }
 581                         M_EXTSW(d,d);
 582                         emit_store_dst(jd, iptr, d);
 583                         break;
 584
 585                 case ICMD_LADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 586
 587                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 588                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 589                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 590                         M_LADD(s1, s2, d);
 591                         emit_store_dst(jd, iptr, d);
 592                         break;
 593
 594                 case ICMD_LADDCONST:  /* ..., value  ==> ..., value + constant        */
 595                                       /* sx.val.l = constant                          */
 596
 597                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 598                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 599                         /* XXX check me */
 600                         if ((iptr->sx.val.l >= -32768) && (iptr->sx.val.l <= 32767)) {
 601                                 M_LADD_IMM(s1, iptr->sx.val.l, d);
 602                         } else {
 603                                 LCONST(REG_ITMP2, iptr->sx.val.l);
 604                                 M_LADD(s1, REG_ITMP2, d);
 605                         }
 606                         emit_store_dst(jd, iptr, d);
 607                         break;
 608
 609                 case ICMD_ISUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 610
 611                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 612                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 613                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 614                         M_SUB(s1, s2, d);
 615                         M_EXTSW(d, d);
 616                         emit_store_dst(jd, iptr, d);
 617                         break;
 618
 619                 case ICMD_ISUBCONST:  /* ..., value  ==> ..., value + constant        */
 620                                       /* sx.val.i = constant                          */
 621
 622                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 623                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 624                         if ((iptr->sx.val.i >= -32767) && (iptr->sx.val.i <= 32768)) {
 625                                 M_IADD_IMM(s1, -iptr->sx.val.i, d);
 626                         } else {
 627                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 628                                 M_SUB(s1, REG_ITMP2, d);
 629                         }
 630                         M_EXTSW(d, d);
 631                         emit_store_dst(jd, iptr, d);
 632                         break;
 633
 634                 case ICMD_LSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 635
 636                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 637                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 638                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 639                         M_SUB(s1, s2, d);
 640                         emit_store_dst(jd, iptr, d);
 641                         break;
 642
 643                 case ICMD_LSUBCONST:  /* ..., value  ==> ..., value - constant        */
 644                                       /* sx.val.l = constant                          */
 645
 646                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 647                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 648                         /* XXX check me */
 649                         if ((iptr->sx.val.l >= -32767) && (iptr->sx.val.l <= 32767)) {
 650                                 M_LADD_IMM(s1, -iptr->sx.val.l, d);
 651                         } else {
 652                                 LCONST(REG_ITMP2, iptr->sx.val.l);
 653                                 M_SUB(s1, REG_ITMP2, d);
 654                         }
 655                         emit_store_dst(jd, iptr, d);
 656                         break;
 657
 658                 case ICMD_IDIV:
 659                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 660                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 661                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 662                         emit_arithmetic_check(cd, iptr, s2);
 663
 664                         M_DIV(s1, s2, d);
 665                         M_EXTSW(d, d);
 666                         emit_store_dst(jd, iptr, d);
 667                         break;
 668
 669                 case ICMD_LDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 670
 671                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 672                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 673                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 674                         emit_arithmetic_check(cd, iptr, s2);
 675
 676                         M_DIV(s1, s2, d);
 677                         /* we need to test if divident was 0x8000000000000, bit OV is set in XER in this case */
 678                         /* we only need to check this if we did a LDIV, not for IDIV */
 679                         M_MFXER(REG_ITMP2);
 680                         M_ANDIS(REG_ITMP2, 0x4000, REG_ITMP2);  /* test OV */
 681                         M_BLE(1);
 682                         M_MOV(s1, d);                           /* java specs says result == dividend */
 683                         emit_store_dst(jd, iptr, d);
 684                         break;
 685
 686                 case ICMD_IREM:
 687                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 688                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 689                         emit_arithmetic_check(cd, iptr, s2);
 690
 691                         M_DIV(s1, s2,  REG_ITMP3);
 692                         M_MUL(REG_ITMP3, s2, REG_ITMP2);
 693                         M_SUB(s1, REG_ITMP2,  REG_ITMP3);
 694                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 695
 696                         M_MOV(REG_ITMP3, d);
 697                         emit_store_dst(jd, iptr, d);
 698                         break;
 699
 700
 701                 case ICMD_LREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 702                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 703                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 704                         emit_arithmetic_check(cd, iptr, s2);
 705
 706                         M_DIV(s1, s2,  REG_ITMP3);
 707                         /* we need to test if divident was 0x8000000000000, bit OV is set in XER in this case */
 708                         /* we only need to check this if we did a LDIV, not for IDIV */
 709                         M_MFXER(REG_ITMP2);
 710                         M_ANDIS(REG_ITMP2, 0x4000, REG_ITMP2);  /* test OV */
 711                         M_BLE(2);
 712                         LCONST(REG_ITMP3, 0);                   /* result == 0 in this case */
 713                         M_BR(2);
 714                         M_MUL(REG_ITMP3, s2, REG_ITMP2);
 715                         M_SUB(s1, REG_ITMP2,  REG_ITMP3);
 716                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 717
 718                         M_MOV(REG_ITMP3, d);
 719                         emit_store_dst(jd, iptr, d);
 720                         break;
 721
 722
 723                 case ICMD_IMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 724                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 725                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 726                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 727                         M_MUL(s1, s2, d);
 728                         M_EXTSW(d, d);
 729                         emit_store_dst(jd, iptr, d);
 730                         break;
 731
 732                 case ICMD_LMUL:
 733                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 734                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 735                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 736                         M_MUL(s1, s2, d);
 737                         emit_store_dst(jd, iptr, d);
 738                         break;
 739
 740                 case ICMD_IMULCONST:  /* ..., value  ==> ..., value * constant        */
 741                                       /* sx.val.i = constant                          */
 742
 743                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 744                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 745                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767))
 746                                 M_MUL_IMM(s1, iptr->sx.val.i, d);
 747                         else {
 748                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 749                                 M_MUL(s1, REG_ITMP3, d);
 750                         }
 751                         M_EXTSW(d, d);
 752                         emit_store_dst(jd, iptr, d);
 753                         break;
 754                 case ICMD_LMULCONST:
 755                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 756                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 757                         if ((iptr->sx.val.l >= -32767) && (iptr->sx.val.l <= 32767))
 758                                 M_MUL_IMM(s1, iptr->sx.val.l, d);
 759                         else {
 760                                 LCONST(REG_ITMP3, iptr->sx.val.l);
 761                                 M_MUL(s1, REG_ITMP3, d);
 762                         }
 763                         emit_store_dst(jd, iptr, d);
 764                         break;
 765
 766                 case ICMD_IDIVPOW2:   /* ..., value  ==> ..., value << constant       */
 767
 768                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 769                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 770                         M_SRA_IMM(s1, iptr->sx.val.i, d);
 771                         M_ADDZE(d, d);
 772                         M_EXTSW(d, d);
 773                         emit_store_dst(jd, iptr, d);
 774                         break;
 775
 776                 case ICMD_ISHL:       /* ..., val1, val2  ==> ..., val1 << val2       */
 777
 778                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 779                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 780                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 781                         M_AND_IMM(s2, 0x1f, REG_ITMP3);
 782                         M_SLL(s1, REG_ITMP3, d);
 783                         M_EXTSW(d, d);
 784                         emit_store_dst(jd, iptr, d);
 785                         break;
 786
 787                 case ICMD_ISHLCONST:  /* ..., value  ==> ..., value << constant       */
 788                                       /* sx.val.i = constant                             */
 789
 790                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 791                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 792                         M_SLL_IMM(s1, iptr->sx.val.i & 0x1f, d);
 793                         M_EXTSW(d,d);
 794                         emit_store_dst(jd, iptr, d);
 795                         break;
 796
 797                 case ICMD_ISHR:       /* ..., val1, val2  ==> ..., val1 >> val2       */
 798
 799                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 800                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 801                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 802                         M_AND_IMM(s2, 0x1f, REG_ITMP3);
 803                         M_SRA(s1, REG_ITMP3, d);
 804                         emit_store_dst(jd, iptr, d);
 805                         break;
 806
 807                 case ICMD_ISHRCONST:  /* ..., value  ==> ..., value >> constant       */
 808                                       /* sx.val.i = constant                             */
 809
 810                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 811                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 812                         M_SRA_IMM(s1, iptr->sx.val.i & 0x1f, d);
 813                         emit_store_dst(jd, iptr, d);
 814                         break;
 815
 816                 case ICMD_IUSHR:      /* ..., val1, val2  ==> ..., val1 >>> val2      */
 817
 818                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 819                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 820                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 821                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 822                         M_MOV(s1, REG_ITMP1);
 823                         M_CLR_HIGH(REG_ITMP1);
 824                         M_SRL(REG_ITMP1, REG_ITMP2, d);
 825                         M_EXTSW(d,d);   /* for the case it was shift 0 bits */
 826                         emit_store_dst(jd, iptr, d);
 827                         break;
 828
 829                 case ICMD_IUSHRCONST: /* ..., value  ==> ..., value >>> constant      */
 830                                       /* sx.val.i = constant                             */
 831
 832                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 833                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 834                         if (iptr->sx.val.i & 0x1f) {
 835                                 M_MOV(s1, REG_ITMP1);
 836                                 M_CLR_HIGH(REG_ITMP1);
 837                                 M_SRA_IMM(REG_ITMP1, iptr->sx.val.i & 0x1f, d);
 838                         } else {
 839                                 M_INTMOVE(s1, d);
 840                         }
 841                         emit_store_dst(jd, iptr, d);
 842                         break;
 843
 844                 case ICMD_LSHLCONST:
 845                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 846                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 847                         M_SLL_IMM(s1, iptr->sx.val.i & 0x3f, d);
 848                         emit_store_dst(jd, iptr, d);
 849                         break;
 850                 case ICMD_LSHL:
 851                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 852                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 853                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 854                         M_AND_IMM(s2, 0x3f, REG_ITMP2);
 855                         M_SLL(s1, REG_ITMP2, d);
 856                         emit_store_dst(jd, iptr, d);
 857                         break;
 858                 case ICMD_LSHRCONST:
 859                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 860                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 861                         M_SRA_IMM(s1, iptr->sx.val.i & 0x3f, d);
 862                         emit_store_dst(jd, iptr, d);
 863                         break;
 864                 case ICMD_LSHR:
 865                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 866                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 867                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 868                         M_AND_IMM(s2, 0x3f, REG_ITMP2);
 869                         M_SRA(s1, REG_ITMP2, d);
 870                         emit_store_dst(jd, iptr, d);
 871                         break;
 872                 case ICMD_LUSHRCONST:
 873                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 874                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 875                         M_SRL_IMM(s1, iptr->sx.val.i & 0x3f, d);
 876                         emit_store_dst(jd, iptr, d);
 877                         break;
 878                 case ICMD_LUSHR:
 879                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 880                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 881                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 882                         M_AND_IMM(s2, 0x3f, REG_ITMP2);
 883                         M_SRL(s1, REG_ITMP2, d);
 884                         emit_store_dst(jd, iptr, d);
 885                         break;
 886
 887                 case ICMD_IAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 888                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 889                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 890                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 891                         M_AND(s1, s2, d);
 892 /*                      M_EXTSW(d, d);*/
 893                         emit_store_dst(jd, iptr, d);
 894                         break;
 895
 896                 case ICMD_LAND:
 897                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 898                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 899                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 900                         M_AND(s1, s2, d);
 901                         emit_store_dst(jd, iptr, d);
 902                         break;
 903
 904                 case ICMD_IANDCONST:  /* ..., value  ==> ..., value & constant        */
 905                                       /* sx.val.i = constant                          */
 906
 907                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 908                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 909                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535)) {
 910                                 M_AND_IMM(s1, iptr->sx.val.i, d);
 911                                 }
 912                         /*
 913                         else if (iptr->sx.val.i == 0xffffff) {
 914                                 M_RLWINM(s1, 0, 8, 31, d);
 915                                 }
 916                         */
 917                         else {
 918                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 919                                 M_AND(s1, REG_ITMP3, d);
 920                         }
 921                         emit_store_dst(jd, iptr, d);
 922                         break;
 923
 924                 case ICMD_LANDCONST:  /* ..., value  ==> ..., value & constant        */
 925                                       /* sx.val.l = constant                          */
 926
 927                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 928                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 929                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
 930                                 M_AND_IMM(s1, iptr->sx.val.l, d);
 931                         /*
 932                         else if (iptr->sx.val.l == 0xffffff) {
 933                                 M_RLWINM(s1, 0, 8, 31, d);
 934                                 }
 935                         */
 936                         else {
 937                                 LCONST(REG_ITMP3, iptr->sx.val.l);
 938                                 M_AND(s1, REG_ITMP3, d);
 939                         }
 940                         emit_store_dst(jd, iptr, d);
 941                         break;
 942
 943                 case ICMD_IREMPOW2:   /* ..., value  ==> ..., value % constant        */
 944                                       /* sx.val.i = constant                             */
 945                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 946                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 947 #if 0
 948                         /* fast division, result in REG_ITMP3) */
 949                         M_SRA_IMM(s1, iptr->sx.val.i, REG_ITMP3);
 950                         M_ADDZE(REG_ITMP3, REG_ITMP3);
 951
 952                         M_SUB(s1, REG_ITMP3, d);
 953                         M_EXTSW(d, d);
 954                         emit_store_dst(jd, iptr, d);
 955                         break;
 956 #else
 957
 958                         M_MOV(s1, REG_ITMP2);
 959                         M_CMPI(s1, 0);
 960                         M_BGE(1 + 3*(iptr->sx.val.i >= 32768));
 961                         if (iptr->sx.val.i >= 32768) {
 962                                 M_ADDIS(REG_ZERO, iptr->sx.val.i >> 16, REG_ITMP2);
 963                                 M_EXTSW(REG_ITMP2, REG_ITMP2);
 964                                 M_OR_IMM(REG_ITMP2, iptr->sx.val.i, REG_ITMP2);
 965                                 M_IADD(s1, REG_ITMP2, REG_ITMP2);
 966                         } else {
 967                                 M_IADD_IMM(s1, iptr->sx.val.i, REG_ITMP2);
 968                         }
 969                         {
 970                                 int b=0, m = iptr->sx.val.i;
 971                                 while (m >>= 1)
 972                                         ++b;
 973                                 M_RLWINM(REG_ITMP2, 0, 0, 30-b, REG_ITMP2);
 974                         }
 975                         M_SUB(s1, REG_ITMP2, d);
 976                         M_EXTSW(d, d);
 977                         emit_store_dst(jd, iptr, d);
 978                         break;
 979 #endif
 980
 981                 case ICMD_IOR:        /* ..., val1, val2  ==> ..., val1 | val2        */
 982                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 983                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 984                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 985                         M_OR(s1, s2, d);
 986 /*                      M_EXTSW(d,d);*/
 987                         emit_store_dst(jd, iptr, d);
 988                         break;
 989
 990                 case ICMD_LOR:
 991
 992                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 993                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 994                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 995                         M_OR(s1, s2, d);
 996                         emit_store_dst(jd, iptr, d);
 997                         break;
 998
 999                 case ICMD_IORCONST:   /* ..., value  ==> ..., value | constant        */
1000                                       /* sx.val.i = constant                          */
1001
1002                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1003                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1004                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
1005                                 M_OR_IMM(s1, iptr->sx.val.i, d);
1006                         else {
1007                                 ICONST(REG_ITMP3, iptr->sx.val.i);
1008                                 M_OR(s1, REG_ITMP3, d);
1009                         }
1010                         emit_store_dst(jd, iptr, d);
1011                         break;
1012
1013                 case ICMD_LORCONST:   /* ..., value  ==> ..., value | constant        */
1014                                       /* sx.val.l = constant                          */
1015
1016                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1017                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1018                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
1019                                 M_OR_IMM(s1, iptr->sx.val.l, d);
1020                         else {
1021                                 LCONST(REG_ITMP3, iptr->sx.val.l);
1022                                 M_OR(s1, REG_ITMP3, d);
1023                         }
1024                         emit_store_dst(jd, iptr, d);
1025                         break;
1026
1027
1028                 case ICMD_IXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
1029                 case ICMD_LXOR:
1030
1031                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1032                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1033                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1034                         M_XOR(s1, s2, d);
1035                         emit_store_dst(jd, iptr, d);
1036                         break;
1037
1038                 case ICMD_IXORCONST:  /* ..., value  ==> ..., value ^ constant        */
1039                                       /* sx.val.i = constant                          */
1040
1041                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1042                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1043                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
1044                                 M_XOR_IMM(s1, iptr->sx.val.i, d);
1045                         else {
1046                                 ICONST(REG_ITMP3, iptr->sx.val.i);
1047                                 M_XOR(s1, REG_ITMP3, d);
1048                         }
1049                         emit_store_dst(jd, iptr, d);
1050                         break;
1051
1052                 case ICMD_LXORCONST:  /* ..., value  ==> ..., value ^ constant        */
1053                                       /* sx.val.l = constant                          */
1054
1055                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1056                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1057                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
1058                                 M_XOR_IMM(s1, iptr->sx.val.l, d);
1059                         else {
1060                                 LCONST(REG_ITMP3, iptr->sx.val.l);
1061                                 M_XOR(s1, REG_ITMP3, d);
1062                         }
1063                         emit_store_dst(jd, iptr, d);
1064                         break;
1065
1066                 case ICMD_LCMP:       /* ..., val1, val2  ==> ..., val1 cmp val2      */
1067
1068                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1069                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1070                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
1071                         /* XXX implement me!!! */
1072                         vm_abort("codegen: implement ICMD_LCMP!");
1073                         emit_store_dst(jd, iptr, d);
1074                         break;
1075                         break;
1076
1077
1078                 /* floating operations ************************************************/
1079
1080                 case ICMD_FNEG:       /* ..., value  ==> ..., - value                 */
1081
1082                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1083                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1084                         M_FMOVN(s1, d);
1085                         emit_store_dst(jd, iptr, d);
1086                         break;
1087
1088                 case ICMD_DNEG:       /* ..., value  ==> ..., - value                 */
1089
1090                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1091                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1092                         M_FMOVN(s1, d);
1093                         emit_store_dst(jd, iptr, d);
1094                         break;
1095
1096                 case ICMD_FADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
1097
1098                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1099                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1100                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1101                         M_FADD(s1, s2, d);
1102                         emit_store_dst(jd, iptr, d);
1103                         break;
1104
1105                 case ICMD_DADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
1106
1107                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1108                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1109                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1110                         M_DADD(s1, s2, d);
1111                         emit_store_dst(jd, iptr, d);
1112                         break;
1113
1114                 case ICMD_FSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
1115
1116                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1117                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1118                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1119                         M_FSUB(s1, s2, d);
1120                         emit_store_dst(jd, iptr, d);
1121                         break;
1122
1123                 case ICMD_DSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
1124
1125                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1126                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1127                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1128                         M_DSUB(s1, s2, d);
1129                         emit_store_dst(jd, iptr, d);
1130                         break;
1131
1132                 case ICMD_FMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1133
1134                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1135                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1136                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1137                         M_FMUL(s1, s2, d);
1138                         emit_store_dst(jd, iptr, d);
1139                         break;
1140
1141                 case ICMD_DMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1142
1143                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1144                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1145                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1146                         M_DMUL(s1, s2, d);
1147                         emit_store_dst(jd, iptr, d);
1148                         break;
1149
1150                 case ICMD_FDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1151
1152                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1153                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1154                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1155                         M_FDIV(s1, s2, d);
1156                         emit_store_dst(jd, iptr, d);
1157                         break;
1158
1159                 case ICMD_DDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1160
1161                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1162                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1163                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1164                         M_DDIV(s1, s2, d);
1165                         emit_store_dst(jd, iptr, d);
1166                         break;
1167
1168                 case ICMD_F2I:       /* ..., value  ==> ..., (int) value              */
1169                 case ICMD_D2I:
1170
1171                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1172                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1173                         M_CLR(d);
1174                         disp = dseg_add_float(cd, 0.0);
1175                         M_FLD(REG_FTMP2, REG_PV, disp);
1176                         M_FCMPU(s1, REG_FTMP2);
1177                         M_BNAN(4);
1178                         disp = dseg_add_unique_s4(cd, 0);
1179                         M_CVTDL_C(s1, REG_FTMP1);
1180                         M_LDA(REG_ITMP1, REG_PV, disp);
1181                         M_STFIWX(REG_FTMP1, 0, REG_ITMP1);
1182                         M_ILD(d, REG_PV, disp);
1183                         emit_store_dst(jd, iptr, d);
1184                         break;
1185
1186                 case ICMD_F2D:       /* ..., value  ==> ..., (double) value           */
1187
1188                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1189                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1190                         M_FLTMOVE(s1, d);
1191                         emit_store_dst(jd, iptr, d);
1192                         break;
1193
1194                 case ICMD_D2F:       /* ..., value  ==> ..., (double) value           */
1195
1196                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1197                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1198                         M_CVTDF(s1, d);
1199                         emit_store_dst(jd, iptr, d);
1200                         break;
1201
1202                 case ICMD_FCMPL:      /* ..., val1, val2  ==> ..., val1 fcmpg val2    */
1203                 case ICMD_DCMPL:      /* == => 0, < => 1, > => -1                     */
1204
1205
1206                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1207                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1208                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1209                         M_FCMPU(s2, s1);
1210                         M_IADD_IMM(REG_ZERO, -1, d);
1211                         M_BNAN(4);
1212                         M_BGT(3);
1213                         M_IADD_IMM(REG_ZERO, 0, d);
1214                         M_BGE(1);
1215                         M_IADD_IMM(REG_ZERO, 1, d);
1216                         emit_store_dst(jd, iptr, d);
1217                         break;
1218
1219                 case ICMD_FCMPG:      /* ..., val1, val2  ==> ..., val1 fcmpl val2    */
1220                 case ICMD_DCMPG:      /* == => 0, < => 1, > => -1                     */
1221
1222                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1223                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1224                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1225                         M_FCMPU(s1, s2);
1226                         M_IADD_IMM(REG_ZERO, 1, d);
1227                         M_BNAN(4);
1228                         M_BGT(3);
1229                         M_IADD_IMM(REG_ZERO, 0, d);
1230                         M_BGE(1);
1231                         M_IADD_IMM(REG_ZERO, -1, d);
1232                         emit_store_dst(jd, iptr, d);
1233                         break;
1234
1235                 case ICMD_IF_FCMPEQ:    /* ..., value, value ==> ...                  */
1236                 case ICMD_IF_DCMPEQ:
1237
1238                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1239                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1240                         M_FCMPU(s1, s2);
1241                         M_BNAN(1);
1242                         emit_beq(cd, iptr->dst.block);
1243                         break;
1244
1245                 case ICMD_IF_FCMPNE:    /* ..., value, value ==> ...                  */
1246                 case ICMD_IF_DCMPNE:
1247
1248                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1249                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1250                         M_FCMPU(s1, s2);
1251                         emit_bnan(cd, iptr->dst.block);
1252                         emit_bne(cd, iptr->dst.block);
1253                         break;
1254
1255
1256                 case ICMD_IF_FCMPL_LT:  /* ..., value, value ==> ...                  */
1257                 case ICMD_IF_DCMPL_LT:
1258
1259                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1260                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1261                         M_FCMPU(s1, s2);
1262                         emit_bnan(cd, iptr->dst.block);
1263                         emit_blt(cd, iptr->dst.block);
1264                         break;
1265
1266                 case ICMD_IF_FCMPL_GT:  /* ..., value, value ==> ...                  */
1267                 case ICMD_IF_DCMPL_GT:
1268
1269                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1270                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1271                         M_FCMPU(s1, s2);
1272                         M_BNAN(1);
1273                         emit_bgt(cd, iptr->dst.block);
1274                         break;
1275
1276                 case ICMD_IF_FCMPL_LE:  /* ..., value, value ==> ...                  */
1277                 case ICMD_IF_DCMPL_LE:
1278
1279                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1280                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1281                         M_FCMPU(s1, s2);
1282                         emit_bnan(cd, iptr->dst.block);
1283                         emit_ble(cd, iptr->dst.block);
1284                         break;
1285
1286                 case ICMD_IF_FCMPL_GE:  /* ..., value, value ==> ...                  */
1287                 case ICMD_IF_DCMPL_GE:
1288
1289                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1290                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1291                         M_FCMPU(s1, s2);
1292                         M_BNAN(1);
1293                         emit_bge(cd, iptr->dst.block);
1294                         break;
1295
1296                 case ICMD_IF_FCMPG_LT:  /* ..., value, value ==> ...                  */
1297                 case ICMD_IF_DCMPG_LT:
1298
1299                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1300                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1301                         M_FCMPU(s1, s2);
1302                         M_BNAN(1);
1303                         emit_blt(cd, iptr->dst.block);
1304                         break;
1305
1306                 case ICMD_IF_FCMPG_GT:  /* ..., value, value ==> ...                  */
1307                 case ICMD_IF_DCMPG_GT:
1308
1309                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1310                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1311                         M_FCMPU(s1, s2);
1312                         emit_bnan(cd, iptr->dst.block);
1313                         emit_bgt(cd, iptr->dst.block);
1314                         break;
1315
1316                 case ICMD_IF_FCMPG_LE:  /* ..., value, value ==> ...                  */
1317                 case ICMD_IF_DCMPG_LE:
1318
1319                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1320                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1321                         M_FCMPU(s1, s2);
1322                         M_BNAN(1);
1323                         emit_ble(cd, iptr->dst.block);
1324                         break;
1325
1326                 case ICMD_IF_FCMPG_GE:  /* ..., value, value ==> ...                  */
1327                 case ICMD_IF_DCMPG_GE:
1328
1329                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1330                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1331                         M_FCMPU(s1, s2);
1332                         emit_bnan(cd, iptr->dst.block);
1333                         emit_bge(cd, iptr->dst.block);
1334                         break;
1335
1336
1337                 /* memory operations **************************************************/
1338
1339                 case ICMD_ARRAYLENGTH: /* ..., arrayref  ==> ..., length              */
1340
1341                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1342                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1343                         emit_nullpointer_check(cd, iptr, s1);
1344                         M_ILD(d, s1, OFFSET(java_array_t, size));
1345                         emit_store_dst(jd, iptr, d);
1346                         break;
1347
1348                 case ICMD_BALOAD:     /* ..., arrayref, index  ==> ..., value         */
1349
1350                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1351                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1352                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1353                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1354                         M_IADD_IMM(s2, OFFSET(java_bytearray_t, data[0]), REG_ITMP2);
1355                         /* implicit null-pointer check */
1356                         M_LBZX(d, s1, REG_ITMP2);
1357                         M_BSEXT(d, d);
1358                         emit_store_dst(jd, iptr, d);
1359                         break;
1360
1361                 case ICMD_CALOAD:     /* ..., arrayref, index  ==> ..., value         */
1362
1363                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1364                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1365                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1366                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1367                         M_SLL_IMM(s2, 1, REG_ITMP2);
1368                         M_IADD_IMM(REG_ITMP2, OFFSET(java_chararray_t, data[0]), REG_ITMP2);
1369                         /* implicit null-pointer check */
1370                         M_LHZX(d, s1, REG_ITMP2);
1371                         emit_store_dst(jd, iptr, d);
1372                         break;
1373
1374                 case ICMD_SALOAD:     /* ..., arrayref, index  ==> ..., value         */
1375
1376                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1377                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1378                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1379                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1380                         M_SLL_IMM(s2, 1, REG_ITMP2);
1381                         M_IADD_IMM(REG_ITMP2, OFFSET(java_shortarray_t, data[0]), REG_ITMP2);
1382                         /* implicit null-pointer check */
1383                         M_LHAX(d, s1, REG_ITMP2);
1384                         emit_store_dst(jd, iptr, d);
1385                         break;
1386
1387                 case ICMD_IALOAD:     /* ..., arrayref, index  ==> ..., value         */
1388
1389                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1390                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1391                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1392                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1393                         M_SLL_IMM(s2, 2, REG_ITMP2);
1394                         M_IADD_IMM(REG_ITMP2, OFFSET(java_intarray_t, data[0]), REG_ITMP2);
1395                         /* implicit null-pointer check */
1396                         M_LWAX(d, s1, REG_ITMP2);
1397                         emit_store_dst(jd, iptr, d);
1398                         break;
1399
1400                 case ICMD_LALOAD:     /* ..., arrayref, index  ==> ..., value         */
1401
1402                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1403                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1404                         d = codegen_reg_of_dst(jd, iptr, PACK_REGS(REG_ITMP2, REG_ITMP1));
1405                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1406                         M_SLL_IMM(s2, 3, REG_ITMP2);
1407                         M_IADD(s1, REG_ITMP2, REG_ITMP2);
1408                         /* implicit null-pointer check */
1409                         M_LLD_INTERN(d, REG_ITMP2, OFFSET(java_longarray_t, data[0]));
1410                         emit_store_dst(jd, iptr, d);
1411                         break;
1412
1413                 case ICMD_FALOAD:     /* ..., arrayref, index  ==> ..., value         */
1414
1415                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1416                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1417                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1418                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1419                         M_SLL_IMM(s2, 2, REG_ITMP2);
1420                         M_IADD_IMM(REG_ITMP2, OFFSET(java_floatarray_t, data[0]), REG_ITMP2);
1421                         /* implicit null-pointer check */
1422                         M_LFSX(d, s1, REG_ITMP2);
1423                         emit_store_dst(jd, iptr, d);
1424                         break;
1425
1426                 case ICMD_DALOAD:     /* ..., arrayref, index  ==> ..., value         */
1427
1428                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1429                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1430                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1431                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1432                         M_SLL_IMM(s2, 3, REG_ITMP2);
1433                         M_IADD_IMM(REG_ITMP2, OFFSET(java_doublearray_t, data[0]), REG_ITMP2);
1434                         /* implicit null-pointer check */
1435                         M_LFDX(d, s1, REG_ITMP2);
1436                         emit_store_dst(jd, iptr, d);
1437                         break;
1438
1439                 case ICMD_AALOAD:     /* ..., arrayref, index  ==> ..., value         */
1440
1441                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1442                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1443                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1444                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1445                         M_SLL_IMM(s2, 3, REG_ITMP2);
1446                         M_IADD_IMM(REG_ITMP2, OFFSET(java_objectarray_t, data[0]), REG_ITMP2);
1447                         /* implicit null-pointer check */
1448                         M_ALDX(d, s1, REG_ITMP2);
1449                         emit_store_dst(jd, iptr, d);
1450                         break;
1451
1452
1453                 case ICMD_BASTORE:    /* ..., arrayref, index, value  ==> ...         */
1454
1455                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1456                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1457                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1458                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1459                         M_IADD_IMM(s2, OFFSET(java_bytearray_t, data[0]), REG_ITMP2);
1460                         /* implicit null-pointer check */
1461                         M_STBX(s3, s1, REG_ITMP2);
1462                         break;
1463
1464                 case ICMD_CASTORE:    /* ..., arrayref, index, value  ==> ...         */
1465
1466                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1467                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1468                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1469                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1470                         M_SLL_IMM(s2, 1, REG_ITMP2);
1471                         M_IADD_IMM(REG_ITMP2, OFFSET(java_chararray_t, data[0]), REG_ITMP2);
1472                         /* implicit null-pointer check */
1473                         M_STHX(s3, s1, REG_ITMP2);
1474                         break;
1475
1476                 case ICMD_SASTORE:    /* ..., arrayref, index, value  ==> ...         */
1477
1478                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1479                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1480                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1481                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1482                         M_SLL_IMM(s2, 1, REG_ITMP2);
1483                         M_IADD_IMM(REG_ITMP2, OFFSET(java_shortarray_t, data[0]), REG_ITMP2);
1484                         M_STHX(s3, s1, REG_ITMP2);
1485                         break;
1486
1487                 case ICMD_IASTORE:    /* ..., arrayref, index, value  ==> ...         */
1488
1489                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1490                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1491                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1492                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1493                         M_SLL_IMM(s2, 2, REG_ITMP2);
1494                         M_IADD_IMM(REG_ITMP2, OFFSET(java_intarray_t, data[0]), REG_ITMP2);
1495                         /* implicit null-pointer check */
1496                         M_STWX(s3, s1, REG_ITMP2);
1497                         break;
1498
1499                 case ICMD_LASTORE:    /* ..., arrayref, index, value  ==> ...         */
1500
1501                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1502                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1503                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1504                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1505                         M_SLL_IMM(s2, 3, REG_ITMP2);
1506                         M_IADD_IMM(REG_ITMP2, OFFSET(java_longarray_t, data[0]), REG_ITMP2);
1507                         /* implicit null-pointer check */
1508                         M_LSTX(s3, s1, REG_ITMP2);
1509                         break;
1510
1511                 case ICMD_FASTORE:    /* ..., arrayref, index, value  ==> ...         */
1512
1513                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1514                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1515                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1516                         s3 = emit_load_s3(jd, iptr, REG_FTMP3);
1517                         M_SLL_IMM(s2, 2, REG_ITMP2);
1518                         M_IADD_IMM(REG_ITMP2, OFFSET(java_floatarray_t, data[0]), REG_ITMP2);
1519                         /* implicit null-pointer check */
1520                         M_STFSX(s3, s1, REG_ITMP2);
1521                         break;
1522
1523                 case ICMD_DASTORE:    /* ..., arrayref, index, value  ==> ...         */
1524
1525                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1526                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1527                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1528                         s3 = emit_load_s3(jd, iptr, REG_FTMP3);
1529                         M_SLL_IMM(s2, 3, REG_ITMP2);
1530                         M_IADD_IMM(REG_ITMP2, OFFSET(java_doublearray_t, data[0]), REG_ITMP2);
1531                         /* implicit null-pointer check */
1532                         M_STFDX(s3, s1, REG_ITMP2);
1533                         break;
1534
1535                 case ICMD_AASTORE:    /* ..., arrayref, index, value  ==> ...         */
1536
1537                         s1 = emit_load_s1(jd, iptr, REG_A0);
1538                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1539                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1540                         s3 = emit_load_s3(jd, iptr, REG_A1);
1541
1542                         disp = dseg_add_functionptr(cd, BUILTIN_canstore);
1543                         M_ALD(REG_ITMP3, REG_PV, disp);
1544                         M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
1545                         M_MTCTR(REG_ITMP3);
1546
1547                         M_INTMOVE(s1, REG_A0);
1548                         M_INTMOVE(s3, REG_A1);
1549
1550                         M_JSR;
1551                         emit_exception_check(cd, iptr);
1552
1553                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1554                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1555                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1556                         M_SLL_IMM(s2, 3, REG_ITMP2);
1557                         M_IADD_IMM(REG_ITMP2, OFFSET(java_objectarray_t, data[0]), REG_ITMP2);
1558                         /* implicit null-pointer check */
1559                         M_ASTX(s3, s1, REG_ITMP2);
1560                         break;
1561
1562
1563                 case ICMD_GETSTATIC:  /* ...  ==> ..., value                          */
1564
1565                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1566                                 uf        = iptr->sx.s23.s3.uf;
1567                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1568                                 disp      = dseg_add_unique_address(cd, NULL);
1569
1570                                 codegen_addpatchref(cd, PATCHER_get_putstatic,
1571                                                                         iptr->sx.s23.s3.uf, disp);
1572
1573                         }
1574                         else {
1575                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1576                                 fieldtype = fi->type;
1577                                 disp      = dseg_add_address(cd, fi->value);
1578
1579                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1580                                         codegen_addpatchref(cd, PATCHER_clinit, fi->class, disp);
1581                                 }
1582                         }
1583
1584                         M_ALD(REG_ITMP1, REG_PV, disp);
1585                         switch (fieldtype) {
1586                         case TYPE_INT:
1587                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1588                                 M_ILD_INTERN(d, REG_ITMP1, 0);
1589                                 break;
1590                         case TYPE_LNG:
1591                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1592                                 M_LLD(d, REG_ITMP1, 0);
1593                                 break;
1594                         case TYPE_ADR:
1595                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1596                                 M_ALD_INTERN(d, REG_ITMP1, 0);
1597                                 break;
1598                         case TYPE_FLT:
1599                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1600                                 M_FLD_INTERN(d, REG_ITMP1, 0);
1601                                 break;
1602                         case TYPE_DBL:
1603                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1604                                 M_DLD_INTERN(d, REG_ITMP1, 0);
1605                                 break;
1606                         }
1607                         emit_store_dst(jd, iptr, d);
1608                         break;
1609
1610                 case ICMD_PUTSTATIC:  /* ..., value  ==> ...                          */
1611
1612
1613                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1614                                 uf        = iptr->sx.s23.s3.uf;
1615                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1616                                 disp      = dseg_add_unique_address(cd, NULL);
1617
1618                                 codegen_addpatchref(cd, PATCHER_get_putstatic,
1619                                                                         iptr->sx.s23.s3.uf, disp);
1620                         }
1621                         else {
1622                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1623                                 fieldtype = fi->type;
1624                                 disp      = dseg_add_address(cd, fi->value);
1625
1626                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1627                                         codegen_addpatchref(cd, PATCHER_clinit, fi->class, disp);
1628                                 }
1629                         }
1630
1631                         M_ALD(REG_ITMP1, REG_PV, disp);
1632                         switch (fieldtype) {
1633                         case TYPE_INT:
1634                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1635                                 M_IST_INTERN(s1, REG_ITMP1, 0);
1636                                 break;
1637                         case TYPE_LNG:
1638                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1639                                 M_LST_INTERN(s1, REG_ITMP1, 0);
1640                                 break;
1641                         case TYPE_ADR:
1642                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1643                                 M_AST_INTERN(s1, REG_ITMP1, 0);
1644                                 break;
1645                         case TYPE_FLT:
1646                                 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1647                                 M_FST_INTERN(s1, REG_ITMP1, 0);
1648                                 break;
1649                         case TYPE_DBL:
1650                                 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1651                                 M_DST_INTERN(s1, REG_ITMP1, 0);
1652                                 break;
1653                         }
1654                         break;
1655
1656
1657                 case ICMD_GETFIELD:   /* ...  ==> ..., value                          */
1658
1659                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1660
1661                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1662                                 uf        = iptr->sx.s23.s3.uf;
1663                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1664                                 disp      = 0;
1665
1666                                 codegen_addpatchref(cd, PATCHER_get_putfield, uf, 0);
1667                         }
1668                         else {
1669                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1670                                 fieldtype = fi->type;
1671                                 disp      = fi->offset;
1672                         }
1673
1674                         /* implicit null-pointer check */
1675                         switch (fieldtype) {
1676                         case TYPE_INT:
1677                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1678                                 M_ILD(d, s1, disp);
1679                                 break;
1680                         case TYPE_LNG:
1681                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1682                                 M_LLD(d, s1, disp);
1683                                 break;
1684                         case TYPE_ADR:
1685                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1686                                 M_ALD(d, s1, disp);
1687                                 break;
1688                         case TYPE_FLT:
1689                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1690                                 M_FLD(d, s1, disp);
1691                                 break;
1692                         case TYPE_DBL:
1693                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1694                                 M_DLD(d, s1, disp);
1695                                 break;
1696                         }
1697                         emit_store_dst(jd, iptr, d);
1698                         break;
1699
1700                 case ICMD_PUTFIELD:   /* ..., value  ==> ...                          */
1701
1702                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1703
1704                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1705                                 uf        = iptr->sx.s23.s3.uf;
1706                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1707                                 disp      = 0;
1708                         }
1709                         else {
1710                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1711                                 fieldtype = fi->type;
1712                                 disp      = fi->offset;
1713                         }
1714
1715                         if (IS_INT_LNG_TYPE(fieldtype)) {
1716                                 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1717                         }
1718                         else
1719                                 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1720
1721                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1722                                 codegen_addpatchref(cd, PATCHER_get_putfield, uf, 0);
1723                         }
1724
1725
1726                         /* implicit null-pointer check */
1727                         switch (fieldtype) {
1728                         case TYPE_INT:
1729                                 M_IST(s2, s1, disp);
1730                                 break;
1731                         case TYPE_LNG:
1732                                 M_LST(s2, s1, disp);
1733                                 break;
1734                         case TYPE_ADR:
1735                                 M_AST(s2, s1, disp);
1736                                 break;
1737                         case TYPE_FLT:
1738                                 M_FST(s2, s1, disp);
1739                                 break;
1740                         case TYPE_DBL:
1741                                 M_DST(s2, s1, disp);
1742                                 break;
1743                         }
1744                         break;
1745
1746
1747                 /* branch operations **************************************************/
1748
1749                 case ICMD_ATHROW:       /* ..., objectref ==> ... (, objectref)       */
1750
1751                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1752                         M_LNGMOVE(s1, REG_ITMP1_XPTR);
1753
1754 #ifdef ENABLE_VERIFIER
1755                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1756                                 codegen_addpatchref(cd, PATCHER_athrow_areturn,
1757                                                                         iptr->sx.s23.s2.uc, 0);
1758                         }
1759 #endif /* ENABLE_VERIFIER */
1760
1761                         disp = dseg_add_functionptr(cd, asm_handle_exception);
1762                         M_ALD(REG_ITMP2, REG_PV, disp);
1763                         M_MTCTR(REG_ITMP2);
1764
1765                         if (jd->isleafmethod) M_MFLR(REG_ITMP3);         /* save LR        */
1766                         M_BL(0);                                        /* get current PC */
1767                         M_MFLR(REG_ITMP2_XPC);
1768                         if (jd->isleafmethod) M_MTLR(REG_ITMP3);         /* restore LR     */
1769                         M_RTS;                                          /* jump to CTR    */
1770
1771                         ALIGNCODENOP;
1772                         break;
1773
1774                 case ICMD_GOTO:         /* ... ==> ...                                */
1775                 case ICMD_RET:          /* ... ==> ...                                */
1776
1777                         emit_br(cd, iptr->dst.block);
1778                         ALIGNCODENOP;
1779                         break;
1780
1781                 case ICMD_JSR:          /* ... ==> ...                                */
1782
1783                         emit_br(cd, iptr->sx.s23.s3.jsrtarget.block);
1784                         ALIGNCODENOP;
1785                         break;
1786
1787                 case ICMD_IFNULL:       /* ..., value ==> ...                         */
1788
1789                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1790                         M_TST(s1);
1791                         emit_beq(cd, iptr->dst.block);
1792                         break;
1793
1794                 case ICMD_IFNONNULL:    /* ..., value ==> ...                         */
1795
1796                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1797                         M_TST(s1);
1798                         emit_bne(cd, iptr->dst.block);
1799                         break;
1800
1801                 case ICMD_IFLT:
1802                 case ICMD_IFLE:
1803                 case ICMD_IFNE:
1804                 case ICMD_IFGT:
1805                 case ICMD_IFGE:
1806                 case ICMD_IFEQ:         /* ..., value ==> ...                         */
1807
1808                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1809                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767))
1810                                 M_CMPI(s1, iptr->sx.val.i);
1811                         else {
1812                                 ICONST(REG_ITMP2, iptr->sx.val.i);
1813                                 M_CMP(s1, REG_ITMP2);
1814                         }
1815                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFEQ, BRANCH_OPT_NONE);
1816                         break;
1817
1818                 case ICMD_IF_LEQ:       /* ..., value ==> ...                         */
1819                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1820                         LCONST(REG_ITMP2, iptr->sx.val.l);
1821                         M_CMP(s1, REG_ITMP2);
1822                         emit_beq(cd, iptr->dst.block);
1823                         break;
1824                 case ICMD_IF_LLT:       /* ..., value ==> ...                         */
1825                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1826                         LCONST(REG_ITMP2, iptr->sx.val.l);
1827                         M_CMP(s1, REG_ITMP2);
1828                         emit_blt(cd, iptr->dst.block);
1829                         break;
1830                 case ICMD_IF_LLE:       /* ..., value ==> ...                         */
1831                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1832                         LCONST(REG_ITMP2, iptr->sx.val.l);
1833                         M_CMP(s1, REG_ITMP2);
1834                         emit_ble(cd, iptr->dst.block);
1835                         break;
1836
1837                 case ICMD_IF_LNE:       /* ..., value ==> ... */
1838                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1839                         LCONST(REG_ITMP2, iptr->sx.val.l);
1840                         M_CMP(s1, REG_ITMP2);
1841                         emit_bne(cd, iptr->dst.block);
1842                         break;
1843                 case ICMD_IF_LGE:       /* ..., value ==> ... */
1844                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1845                         LCONST(REG_ITMP2, iptr->sx.val.l);
1846                         M_CMP(s1, REG_ITMP2);
1847                         emit_bge(cd, iptr->dst.block);
1848                         break;
1849                 case ICMD_IF_LGT:       /* ..., value ==> ...                         */
1850                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1851                         LCONST(REG_ITMP2, iptr->sx.val.l);
1852                         M_CMP(s1, REG_ITMP2);
1853                         emit_bgt(cd, iptr->dst.block);
1854                         break;
1855                 case ICMD_IF_ICMPEQ:    /* ..., value, value ==> ...                  */
1856                 case ICMD_IF_ACMPEQ:    /* op1 = target JavaVM pc                     */
1857                 case ICMD_IF_LCMPEQ:
1858
1859                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1860                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1861                         M_CMP(s1, s2);
1862                         emit_beq(cd, iptr->dst.block);
1863                         break;
1864
1865                 case ICMD_IF_ICMPNE:    /* ..., value, value ==> ...                  */
1866                 case ICMD_IF_ACMPNE:    /* op1 = target JavaVM pc                     */
1867                 case ICMD_IF_LCMPNE:
1868
1869                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1870                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1871                         M_CMP(s1, s2);
1872                         emit_bne(cd, iptr->dst.block);
1873                         break;
1874
1875
1876                 case ICMD_IF_ICMPLT:    /* ..., value, value ==> ...                  */
1877                 case ICMD_IF_LCMPLT:
1878
1879                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1880                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1881                         M_CMP(s1, s2);
1882                         emit_blt(cd, iptr->dst.block);
1883                         break;
1884
1885                 case ICMD_IF_ICMPGT:    /* ..., value, value ==> ...                  */
1886                 case ICMD_IF_LCMPGT:
1887
1888                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1889                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1890                         M_CMP(s1, s2);
1891                         emit_bgt(cd, iptr->dst.block);
1892                         break;
1893
1894                 case ICMD_IF_ICMPLE:    /* ..., value, value ==> ...                  */
1895                 case ICMD_IF_LCMPLE:
1896
1897                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1898                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1899                         M_CMP(s1, s2);
1900                         emit_ble(cd, iptr->dst.block);
1901                         break;
1902
1903                 case ICMD_IF_ICMPGE:    /* ..., value, value ==> ...                  */
1904                 case ICMD_IF_LCMPGE:
1905
1906                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1907                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1908                         M_CMP(s1, s2);
1909                         emit_bge(cd, iptr->dst.block);
1910                         break;
1911
1912
1913                 case ICMD_LRETURN:      /* ..., retvalue ==> ...                      */
1914                 case ICMD_IRETURN:      /* ..., retvalue ==> ...                      */
1915
1916                         REPLACEMENT_POINT_RETURN(cd, iptr);
1917                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
1918                         M_LNGMOVE(s1, REG_RESULT);
1919                         goto nowperformreturn;
1920
1921                 case ICMD_ARETURN:      /* ..., retvalue ==> ...                      */
1922
1923                         REPLACEMENT_POINT_RETURN(cd, iptr);
1924                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
1925                         M_LNGMOVE(s1, REG_RESULT);
1926
1927 #ifdef ENABLE_VERIFIER
1928                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1929                                 codegen_addpatchref(cd, PATCHER_athrow_areturn,
1930                                                                         iptr->sx.s23.s2.uc, 0);
1931                         }
1932 #endif /* ENABLE_VERIFIER */
1933
1934                         goto nowperformreturn;
1935
1936                 case ICMD_FRETURN:      /* ..., retvalue ==> ...                      */
1937                 case ICMD_DRETURN:
1938
1939                         REPLACEMENT_POINT_RETURN(cd, iptr);
1940                         s1 = emit_load_s1(jd, iptr, REG_FRESULT);
1941                         M_FLTMOVE(s1, REG_FRESULT);
1942                         goto nowperformreturn;
1943
1944                 case ICMD_RETURN:      /* ...  ==> ...                                */
1945
1946                         REPLACEMENT_POINT_RETURN(cd, iptr);
1947
1948 nowperformreturn:
1949                         {
1950                         s4 i, p;
1951
1952                         p = cd->stackframesize;
1953
1954                         /* call trace function */
1955
1956 #if !defined(NDEBUG)
1957                         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
1958                                 emit_verbosecall_exit(jd);
1959 #endif
1960
1961 #if defined(ENABLE_THREADS)
1962                         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
1963                                 disp = dseg_add_functionptr(cd, LOCK_monitor_exit);
1964                                 M_ALD(REG_ITMP3, REG_PV, disp);
1965                                 M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
1966                                 M_MTCTR(REG_ITMP3);
1967
1968                                 /* we need to save the proper return value */
1969
1970                                 switch (iptr->opc) {
1971                                 case ICMD_LRETURN:
1972                                 case ICMD_IRETURN:
1973                                 case ICMD_ARETURN:
1974                                         /* fall through */
1975                                         M_LST(REG_RESULT , REG_SP, rd->memuse * 8 + 8);
1976                                         break;
1977                                 case ICMD_FRETURN:
1978                                         M_FST(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
1979                                         break;
1980                                 case ICMD_DRETURN:
1981                                         M_DST(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
1982                                         break;
1983                                 }
1984
1985                                 M_ALD(REG_A0, REG_SP, rd->memuse * 8);
1986                                 M_JSR;
1987
1988                                 /* and now restore the proper return value */
1989
1990                                 switch (iptr->opc) {
1991                                 case ICMD_LRETURN:
1992                                 case ICMD_IRETURN:
1993                                 case ICMD_ARETURN:
1994                                         /* fall through */
1995                                         M_LLD(REG_RESULT , REG_SP, rd->memuse * 8 + 8);
1996                                         break;
1997                                 case ICMD_FRETURN:
1998                                         M_FLD(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
1999                                         break;
2000                                 case ICMD_DRETURN:
2001                                         M_DLD(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
2002                                         break;
2003                                 }
2004                         }
2005 #endif
2006
2007                         /* restore return address                                         */
2008
2009                         if (!jd->isleafmethod) {
2010                                 /* ATTENTION: Don't use REG_ZERO (r0) here, as M_ALD
2011                                    may have a displacement overflow. */
2012
2013                                 M_ALD(REG_ITMP1, REG_SP, p * 8 + LA_LR_OFFSET);
2014                                 M_MTLR(REG_ITMP1);
2015                         }
2016
2017                         /* restore saved registers                                        */
2018
2019                         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
2020                                 p--; M_LLD(rd->savintregs[i], REG_SP, p * 8);
2021                         }
2022                         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
2023                                 p--; M_DLD(rd->savfltregs[i], REG_SP, p * 8);
2024                         }
2025
2026                         /* deallocate stack                                               */
2027
2028                         if (cd->stackframesize)
2029                                 M_LDA(REG_SP, REG_SP, cd->stackframesize * 8);
2030
2031                         M_RET;
2032                         ALIGNCODENOP;
2033                         }
2034                         break;
2035
2036
2037                 case ICMD_TABLESWITCH:  /* ..., index ==> ...                         */
2038                         {
2039                         s4 i, l;
2040                         branch_target_t *table;
2041
2042                         table = iptr->dst.table;
2043
2044                         l = iptr->sx.s23.s2.tablelow;
2045                         i = iptr->sx.s23.s3.tablehigh;
2046
2047                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2048                         if (l == 0) {
2049                                 M_INTMOVE(s1, REG_ITMP1);
2050                         } else if (l <= 32768) {
2051                                 M_LDA(REG_ITMP1, s1, -l);
2052                         } else {
2053                                 ICONST(REG_ITMP2, l);
2054                                 M_SUB(s1, REG_ITMP2, REG_ITMP1);
2055                         }
2056
2057                         /* number of targets */
2058                         i = i - l + 1;
2059
2060                         /* range check */
2061
2062                         M_CMPUI(REG_ITMP1, i - 1);
2063                         emit_bgt(cd, table[0].block);
2064
2065                         /* build jump table top down and use address of lowest entry */
2066
2067                         table += i;
2068
2069                         while (--i >= 0) {
2070                                 dseg_add_target(cd, table->block);
2071                                 --table;
2072                         }
2073
2074                         /* length of dataseg after last dseg_add_unique_target is used by load */
2075
2076                         M_SLL_IMM(REG_ITMP1, 3, REG_ITMP1);
2077                         M_IADD(REG_ITMP1, REG_PV, REG_ITMP2);
2078                         M_ALD(REG_ITMP2, REG_ITMP2, -(cd->dseglen));
2079                         M_MTCTR(REG_ITMP2);
2080                         M_RTS;
2081                         ALIGNCODENOP;
2082                         }
2083                         break;
2084
2085
2086                 case ICMD_LOOKUPSWITCH: /* ..., key ==> ...                           */
2087                         {
2088                         s4 i, val;
2089                         lookup_target_t *lookup;
2090
2091                         lookup = iptr->dst.lookup;
2092
2093                         i = iptr->sx.s23.s2.lookupcount;
2094
2095                         MCODECHECK((i<<3)+8);
2096                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2097                         while (--i >= 0) {
2098                                 val = lookup->value;
2099                                 if ((val >= -32768) && (val <= 32767)) {
2100                                         M_CMPI(s1, val);
2101
2102                                 } else {
2103                                         a = dseg_add_s4(cd, val);
2104                                         M_ILD(REG_ITMP2, REG_PV, a);
2105                                         M_CMP(s1, REG_ITMP2);
2106                                 }
2107                                 emit_beq(cd, lookup->target.block);
2108                                 ++lookup;
2109                         }
2110
2111                         emit_br(cd, iptr->sx.s23.s3.lookupdefault.block);
2112
2113                         ALIGNCODENOP;
2114                         break;
2115                         }
2116
2117
2118                 case ICMD_BUILTIN:      /* ..., [arg1, [arg2 ...]] ==> ...            */
2119
2120                         bte = iptr->sx.s23.s3.bte;
2121                         md = bte->md;
2122                         goto gen_method;
2123
2124                 case ICMD_INVOKESTATIC: /* ..., [arg1, [arg2 ...]] ==> ...            */
2125                 case ICMD_INVOKESPECIAL:/* ..., objectref, [arg1, [arg2 ...]] ==> ... */
2126                 case ICMD_INVOKEVIRTUAL:/* op1 = arg count, val.a = method pointer    */
2127                 case ICMD_INVOKEINTERFACE:
2128
2129                         REPLACEMENT_POINT_INVOKE(cd, iptr);
2130
2131                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2132                                 lm = NULL;
2133                                 um = iptr->sx.s23.s3.um;
2134                                 md = um->methodref->parseddesc.md;
2135                         }
2136                         else {
2137                                 lm = iptr->sx.s23.s3.fmiref->p.method;
2138                                 um = NULL;
2139                                 md = lm->parseddesc;
2140                         }
2141
2142 gen_method:
2143                         s3 = md->paramcount;
2144
2145                         MCODECHECK((s3 << 2) + 128);
2146
2147                         /* copy arguments to registers or stack location */
2148
2149                         for (s3 = s3 - 1; s3 >= 0; s3--) {
2150                                 var = VAR(iptr->sx.s23.s2.args[s3]);
2151                                 d   = md->params[s3].regoff;
2152
2153                                 if (var->flags & PREALLOC)
2154                                         continue;
2155
2156                                 if (IS_INT_LNG_TYPE(var->type)) {
2157                                         if (!md->params[s3].inmemory) {
2158                                                 s1 = emit_load(jd, iptr, var, d);
2159                                                 M_LNGMOVE(s1, d);
2160                                         }
2161                                         else {
2162                                                 s1 = emit_load(jd, iptr, var, REG_ITMP1);
2163                                                 M_LST(s1, REG_SP, d);
2164                                         }
2165                                 }
2166                                 else {
2167                                         if (!md->params[s3].inmemory) {
2168                                                 s1 = emit_load(jd, iptr, var, d);
2169                                                 M_FLTMOVE(s1, d);
2170                                         }
2171                                         else {
2172                                                 s1 = emit_load(jd, iptr, var, REG_FTMP1);
2173                                                 M_DST(s1, REG_SP, d);
2174                                         }
2175                                 }
2176                         }
2177
2178                         switch (iptr->opc) {
2179                         case ICMD_BUILTIN:
2180                                 disp = dseg_add_functionptr(cd, bte->fp);
2181                                 M_ALD(REG_PV, REG_PV, disp);
2182                                 M_ALD(REG_PV, REG_PV, 0);       /* TOC */
2183
2184                                 /* generate the actual call */
2185                                 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2186                                 M_MTCTR(REG_PV);
2187                                 M_JSR;
2188                                 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2189                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2190                                 M_MFLR(REG_ITMP1);
2191                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2192
2193                                 emit_exception_check(cd, iptr);
2194                                 break;
2195
2196
2197                         case ICMD_INVOKESPECIAL:
2198                                 emit_nullpointer_check(cd, iptr, REG_A0);
2199                                 /* fall through */
2200
2201                         case ICMD_INVOKESTATIC:
2202                                 if (lm == NULL) {
2203                                         disp = dseg_add_unique_address(cd, um);
2204
2205                                         codegen_addpatchref(cd, PATCHER_invokestatic_special,
2206                                                                                 um, disp);
2207                                 } else {
2208                                         disp = dseg_add_address(cd, lm->stubroutine);
2209                                 }
2210                                 M_ALD(REG_PV, REG_PV, disp);
2211
2212                                 /* generate the actual call */
2213
2214                                 M_MTCTR(REG_PV);
2215                                 M_JSR;
2216                                 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2217                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2218                                 M_MFLR(REG_ITMP1);
2219                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2220
2221                                 break;
2222                         case ICMD_INVOKEVIRTUAL:
2223                                 if (lm == NULL) {
2224                                         codegen_addpatchref(cd, PATCHER_invokevirtual, um, 0);
2225                                         s1 = 0;
2226                                 } else {
2227                                         s1 = OFFSET(vftbl_t, table[0]) +
2228                                                 sizeof(methodptr) * lm->vftblindex;
2229                                 }
2230
2231                                 /* implicit null-pointer check */
2232                                 M_ALD(REG_METHODPTR, REG_A0, OFFSET(java_object_t, vftbl));
2233                                 M_ALD(REG_PV, REG_METHODPTR, s1);
2234
2235                                 /* generate the actual call */
2236
2237                                 M_MTCTR(REG_PV);
2238                                 M_JSR;
2239                                 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2240                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2241                                 M_MFLR(REG_ITMP1);
2242                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2243                                 break;
2244
2245                         case ICMD_INVOKEINTERFACE:
2246                                 if (lm == NULL) {
2247                                         codegen_addpatchref(cd, PATCHER_invokeinterface, um, 0);
2248
2249                                         s1 = 0;
2250                                         s2 = 0;
2251
2252                                 } else {
2253                                         s1 = OFFSET(vftbl_t, interfacetable[0]) -
2254                                                 sizeof(methodptr*) * lm->class->index;
2255
2256                                         s2 = sizeof(methodptr) * (lm - lm->class->methods);
2257                                 }
2258
2259                                 /* implicit null-pointer check */
2260                                 M_ALD(REG_METHODPTR, REG_A0, OFFSET(java_object_t, vftbl));
2261                                 M_ALD(REG_METHODPTR, REG_METHODPTR, s1);
2262                                 M_ALD(REG_PV, REG_METHODPTR, s2);
2263
2264                                 /* generate the actual call */
2265
2266                                 M_MTCTR(REG_PV);
2267                                 M_JSR;
2268                                 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2269                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2270                                 M_MFLR(REG_ITMP1);
2271                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2272
2273                                 break;
2274                         }
2275                         /* store return value */
2276
2277                         d = md->returntype.type;
2278
2279                         if (d != TYPE_VOID) {
2280                                 if (IS_INT_LNG_TYPE(d)) {
2281                                         s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2282                                         M_MOV(REG_RESULT, s1);
2283                                 }
2284                                 else {
2285                                         s1 = codegen_reg_of_dst(jd, iptr, REG_FRESULT);
2286                                         M_FLTMOVE(REG_FRESULT, s1);
2287                                 }
2288                                 emit_store_dst(jd, iptr, s1);
2289                         }
2290                         break;
2291
2292                 case ICMD_CHECKCAST:  /* ..., objectref ==> ..., objectref            */
2293                                       /* val.a: (classinfo*) superclass               */
2294
2295                         /*  superclass is an interface:
2296                          *
2297                          *  OK if ((sub == NULL) ||
2298                          *         (sub->vftbl->interfacetablelength > super->index) &&
2299                          *         (sub->vftbl->interfacetable[-super->index] != NULL));
2300                          *
2301                          *  superclass is a class:
2302                          *
2303                          *  OK if ((sub == NULL) || (0
2304                          *         <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2305                          *         super->vftbl->diffvall));
2306                          */
2307
2308                         if (!(iptr->flags.bits & INS_FLAG_ARRAY)) {
2309                                 /* object type cast-check */
2310
2311                                 classinfo *super;
2312                                 s4         superindex;
2313
2314                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2315                                         super      = NULL;
2316                                         superindex = 0;
2317                                 }
2318                                 else {
2319                                         super      = iptr->sx.s23.s3.c.cls;
2320                                         superindex = super->index;
2321                                 }
2322
2323                                 if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2324                                         CODEGEN_CRITICAL_SECTION_NEW;
2325                                 }
2326
2327                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2328
2329                                 /* if class is not resolved, check which code to call */
2330
2331                                 if (super == NULL) {
2332                                         M_TST(s1);
2333                                         emit_label_beq(cd, BRANCH_LABEL_1);
2334                                         disp = dseg_add_unique_s4(cd, 0);                     /* super->flags */
2335
2336                                         codegen_addpatchref(cd,
2337                                                                                 PATCHER_checkcast_instanceof_flags,
2338                                                                                 iptr->sx.s23.s3.c.ref,
2339                                                                                 disp);
2340
2341                                         M_ILD(REG_ITMP2, REG_PV, disp);
2342                                         M_AND_IMM(REG_ITMP2, ACC_INTERFACE, REG_ITMP2);
2343
2344                                         emit_label_beq(cd, BRANCH_LABEL_2);
2345                                 }
2346
2347                                 /* interface checkcast code */
2348
2349                                 if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2350                                         if (super == NULL) {
2351                                                 codegen_addpatchref(cd,
2352                                                                                         PATCHER_checkcast_interface,
2353                                                                                         iptr->sx.s23.s3.c.ref,
2354                                                                                         0);
2355                                         } else {
2356                                                 M_TST(s1);
2357                                                 emit_label_beq(cd, BRANCH_LABEL_3);
2358                                         }
2359
2360                                         M_ALD(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
2361                                         M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, interfacetablelength));
2362                                         M_LDATST(REG_ITMP3, REG_ITMP3, -superindex);
2363                                         emit_classcast_check(cd, iptr, BRANCH_LE, REG_ITMP3, s1);
2364                                         M_ALD(REG_ITMP3, REG_ITMP2,
2365                                                   OFFSET(vftbl_t, interfacetable[0]) -
2366                                                   superindex * sizeof(methodptr*));
2367                                         M_TST(REG_ITMP3);
2368                                         emit_classcast_check(cd, iptr, BRANCH_EQ, REG_ITMP3, s1);
2369
2370                                         if (super == NULL)      {
2371                                                 emit_label_br(cd, BRANCH_LABEL_4);
2372                                         } else  {
2373                                                 emit_label(cd, BRANCH_LABEL_3);
2374                                         }
2375                                 }
2376
2377                                 /* class checkcast code */
2378
2379                                 if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2380                                         if (super == NULL) {
2381                                                 emit_label(cd, BRANCH_LABEL_2);
2382
2383                                                 disp = dseg_add_unique_address(cd, NULL);
2384                                                 codegen_addpatchref(cd, PATCHER_checkcast_class,
2385                                                                                         iptr->sx.s23.s3.c.ref,
2386                                                                                         disp);
2387                                         } else {
2388                                                 disp = dseg_add_address(cd, super->vftbl);
2389                                                 M_TST(s1);
2390                                                 emit_label_beq(cd, BRANCH_LABEL_5);
2391                                         }
2392
2393                                         M_ALD(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
2394
2395                                         CODEGEN_CRITICAL_SECTION_START;
2396
2397                                         M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2398                                         M_ALD(REG_ITMP2, REG_PV, disp);
2399                                         if (s1 != REG_ITMP1) {
2400                                                 M_ILD(REG_ITMP1, REG_ITMP2, OFFSET(vftbl_t, baseval));
2401                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2402
2403                                                 CODEGEN_CRITICAL_SECTION_END;
2404
2405                                                 M_SUB(REG_ITMP3, REG_ITMP1, REG_ITMP3);
2406                                                 M_EXTSW(REG_ITMP3, REG_ITMP3);
2407                                         } else {
2408                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, baseval));
2409                                                 M_SUB(REG_ITMP3, REG_ITMP2, REG_ITMP3);
2410                                                 M_EXTSW(REG_ITMP3, REG_ITMP3);
2411                                                 M_ALD(REG_ITMP2, REG_PV, disp);
2412                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2413
2414                                                 CODEGEN_CRITICAL_SECTION_END;
2415
2416                                         }
2417                                         M_CMPU(REG_ITMP3, REG_ITMP2);
2418                                         emit_classcast_check(cd, iptr, BRANCH_GT, REG_ITMP3, s1);
2419
2420                                         if (super != NULL)
2421                                                 emit_label(cd, BRANCH_LABEL_5);
2422                                 }
2423
2424                                 if (super == NULL) {
2425                                         emit_label(cd, BRANCH_LABEL_1);
2426                                         emit_label(cd, BRANCH_LABEL_4);
2427                                 }
2428                                 d = codegen_reg_of_dst(jd, iptr, s1);
2429
2430                         } else {
2431                                 /* array type cast-check */
2432
2433                                 s1 = emit_load_s1(jd, iptr, REG_A0);
2434                                 M_INTMOVE(s1, REG_A0);
2435
2436
2437                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2438                                         disp = dseg_add_unique_address(cd, NULL);
2439                                         codegen_addpatchref(cd, PATCHER_builtin_arraycheckcast,
2440                                                                                 iptr->sx.s23.s3.c.ref,
2441                                                                                 disp);
2442                                 } else {
2443                                         disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2444                                 }
2445
2446                                 M_ALD(REG_A1, REG_PV, disp);
2447                                 disp = dseg_add_functionptr(cd, BUILTIN_arraycheckcast);
2448                                 M_ALD(REG_ITMP2, REG_PV, disp);
2449                                 M_ALD(REG_ITMP2, REG_ITMP2, 0); /* TOC */
2450                                 M_MTCTR(REG_ITMP2);
2451                                 M_JSR;
2452                                 M_TST(REG_RESULT);
2453                                 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_RESULT, s1);
2454
2455                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2456                                 d = codegen_reg_of_dst(jd, iptr, s1);
2457                         }
2458                         M_INTMOVE(s1, d);
2459                         emit_store_dst(jd, iptr, d);
2460                         break;
2461
2462
2463                 case ICMD_INSTANCEOF: /* ..., objectref ==> ..., intresult            */
2464                                       /* val.a: (classinfo*) superclass               */
2465
2466                         /*  superclass is an interface:
2467                          *
2468                          *  return (sub != NULL) &&
2469                          *         (sub->vftbl->interfacetablelength > super->index) &&
2470                          *         (sub->vftbl->interfacetable[-super->index] != NULL);
2471                          *
2472                          *  superclass is a class:
2473                          *
2474                          *  return ((sub != NULL) && (0
2475                          *          <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2476                          *          super->vftbl->diffvall));
2477                          */
2478
2479                         {
2480                         classinfo *super;
2481                         s4         superindex;
2482
2483                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2484                                 super      = NULL;
2485                                 superindex = 0;
2486                         }
2487                         else {
2488                                 super      = iptr->sx.s23.s3.c.cls;
2489                                 superindex = super->index;
2490                         }
2491
2492                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2493                                 CODEGEN_CRITICAL_SECTION_NEW;
2494                         }
2495
2496                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2497                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
2498                         if (s1 == d) {
2499                                 M_MOV(s1, REG_ITMP1);
2500                                 s1 = REG_ITMP1;
2501                         }
2502
2503                         M_CLR(d);
2504
2505                         /* if class is not resolved, check which code to call */
2506
2507                         if (super == NULL) {
2508                                 M_TST(s1);
2509                                 emit_label_beq(cd, BRANCH_LABEL_1);
2510                                 disp = dseg_add_unique_s4(cd, 0);                     /* super->flags */
2511
2512                                 codegen_addpatchref(cd, PATCHER_checkcast_instanceof_flags,
2513                                                                         iptr->sx.s23.s3.c.ref, disp);
2514
2515                                 M_ILD(REG_ITMP3, REG_PV, disp);
2516                                 M_AND_IMM(REG_ITMP3, ACC_INTERFACE, REG_ITMP3);
2517                                 emit_label_beq(cd, BRANCH_LABEL_2);
2518                         }
2519
2520                         /* interface instanceof code */
2521
2522                         if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2523                                 if (super == NULL) {
2524                                         codegen_addpatchref(cd,
2525                                                                                 PATCHER_instanceof_interface,
2526                                                                                 iptr->sx.s23.s3.c.ref, 0);
2527
2528                                 } else {
2529                                         M_TST(s1);
2530                                         emit_label_beq(cd, BRANCH_LABEL_3);
2531                                 }
2532
2533                                 M_ALD(REG_ITMP1, s1, OFFSET(java_object_t, vftbl));
2534                                 M_ILD(REG_ITMP3, REG_ITMP1, OFFSET(vftbl_t, interfacetablelength));
2535                                 M_LDATST(REG_ITMP3, REG_ITMP3, -superindex);
2536                                 M_BLE(4);
2537                                 M_ALD(REG_ITMP1, REG_ITMP1,
2538                                           OFFSET(vftbl_t, interfacetable[0]) -
2539                                           superindex * sizeof(methodptr*));
2540                                 M_TST(REG_ITMP1);
2541                                 M_BEQ(1);
2542                                 M_IADD_IMM(REG_ZERO, 1, d);
2543
2544                                 if (super == NULL)      {
2545                                         emit_label_br(cd, BRANCH_LABEL_4);
2546                                 } else  {
2547                                         emit_label(cd, BRANCH_LABEL_3);
2548                                 }
2549                         }
2550
2551                         /* class instanceof code */
2552
2553                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2554
2555                                 if (super == NULL) {
2556                                         emit_label(cd, BRANCH_LABEL_2);
2557
2558                                         disp = dseg_add_unique_address(cd, NULL);
2559                                         codegen_addpatchref(cd, PATCHER_instanceof_class,
2560                                                                                 iptr->sx.s23.s3.c.ref,
2561                                                                                 disp);
2562
2563                                 } else {
2564                                         disp = dseg_add_address(cd, super->vftbl);
2565                                         M_TST(s1);
2566                                         emit_label_beq(cd, BRANCH_LABEL_5);
2567                                 }
2568
2569                                 M_ALD(REG_ITMP1, s1, OFFSET(java_object_t, vftbl));
2570                                 M_ALD(REG_ITMP2, REG_PV, disp);
2571
2572                                 CODEGEN_CRITICAL_SECTION_START;
2573
2574                                 M_ILD(REG_ITMP1, REG_ITMP1, OFFSET(vftbl_t, baseval));
2575                                 M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2576                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2577
2578                                 CODEGEN_CRITICAL_SECTION_END;
2579
2580                                 M_SUB(REG_ITMP1, REG_ITMP3, REG_ITMP1);
2581                                 M_EXTSW(REG_ITMP1, REG_ITMP1);
2582                                 M_CMPU(REG_ITMP1, REG_ITMP2);
2583                                 M_CLR(d);
2584                                 M_BGT(1);
2585                                 M_IADD_IMM(REG_ZERO, 1, d);
2586
2587                                 if (super != NULL)
2588                                         emit_label(cd, BRANCH_LABEL_5);
2589                         }
2590
2591                         if (super == NULL) {
2592                                 emit_label(cd, BRANCH_LABEL_1);
2593                                 emit_label(cd, BRANCH_LABEL_4);
2594                         }
2595
2596                         emit_store_dst(jd, iptr, d);
2597                         }
2598                         break;
2599
2600                 case ICMD_MULTIANEWARRAY:/* ..., cnt1, [cnt2, ...] ==> ..., arrayref  */
2601
2602                         /* check for negative sizes and copy sizes to stack if necessary  */
2603
2604                         MCODECHECK((iptr->s1.argcount << 2) + 128);
2605
2606                         for (s1 = iptr->s1.argcount; --s1 >= 0; ) {
2607
2608                                 var = VAR(iptr->sx.s23.s2.args[s1]);
2609
2610                                 /* copy SAVEDVAR sizes to stack */
2611
2612                                 if (!(var->flags & PREALLOC)) {
2613                                         s2 = emit_load(jd, iptr, var, REG_ITMP1);
2614 #if defined(__DARWIN__)
2615                                         M_LST(s2, REG_SP, LA_SIZE + (s1 + INT_ARG_CNT) * 8);
2616 #else
2617                                         M_LST(s2, REG_SP, LA_SIZE + (s1 + 3) * 8);
2618 #endif
2619                                 }
2620                         }
2621
2622                         /* a0 = dimension count */
2623
2624                         ICONST(REG_A0, iptr->s1.argcount);
2625
2626                         /* is patcher function set? */
2627
2628                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2629                                 disp = dseg_add_unique_address(cd, NULL);
2630
2631                                 codegen_addpatchref(cd, PATCHER_builtin_multianewarray,
2632                                                                         iptr->sx.s23.s3.c.ref, disp);
2633                         } else {
2634                                 disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2635                         }
2636
2637                         /* a1 = arraydescriptor */
2638
2639                         M_ALD(REG_A1, REG_PV, disp);
2640
2641                         /* a2 = pointer to dimensions = stack pointer */
2642
2643 #if defined(__DARWIN__)
2644                         M_LDA(REG_A2, REG_SP, LA_SIZE + INT_ARG_CNT * 8);
2645 #else
2646                         M_LDA(REG_A2, REG_SP, LA_SIZE + 3 * 8);
2647 #endif
2648
2649                         disp = dseg_add_functionptr(cd, BUILTIN_multianewarray);
2650                         M_ALD(REG_ITMP3, REG_PV, disp);
2651                         M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
2652                         M_MTCTR(REG_ITMP3);
2653                         M_JSR;
2654
2655                         /* check for exception before result assignment */
2656                         emit_exception_check(cd, iptr);
2657
2658                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2659                         M_INTMOVE(REG_RESULT, d);
2660                         emit_store_dst(jd, iptr, d);
2661                         break;
2662
2663                 default:
2664                         exceptions_throw_internalerror("Unknown ICMD %d during code generation",
2665                                                                                    iptr->opc);
2666                         return false;
2667         } /* switch */
2668
2669         } /* for instruction */
2670
2671         } /* if (bptr -> flags >= BBREACHED) */
2672         } /* for basic block */
2673
2674         dseg_createlinenumbertable(cd);
2675
2676         /* generate stubs */
2677
2678         emit_patcher_stubs(jd);
2679
2680         /* everything's ok */
2681
2682         return true;
2683 }
2684
2685
2686 /* codegen_emit_stub_compiler **************************************************
2687
2688    Emits a stub routine which calls the compiler.
2689
2690 *******************************************************************************/
2691
2692 void codegen_emit_stub_compiler(jitdata *jd)
2693 {
2694         methodinfo  *m;
2695         codegendata *cd;
2696
2697         /* get required compiler data */
2698
2699         m  = jd->m;
2700         cd = jd->cd;
2701
2702         /* code for the stub */
2703
2704         M_ALD_INTERN(REG_ITMP1, REG_PV, -2 * SIZEOF_VOID_P);
2705         M_ALD_INTERN(REG_PV, REG_PV, -3 * SIZEOF_VOID_P);
2706         M_MTCTR(REG_PV);
2707         M_RTS;
2708 }
2709
2710
2711 /* codegen_emit_stub_native ****************************************************
2712
2713    Emits a stub routine which calls a native method.
2714
2715 *******************************************************************************/
2716
2717 void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f)
2718 {
2719         methodinfo  *m;
2720         codeinfo    *code;
2721         codegendata *cd;
2722         methoddesc  *md;
2723         s4           nativeparams;
2724         s4           i, j;
2725         s4           t;
2726         s4           s1, s2, disp;
2727         s4           funcdisp;
2728
2729         /* get required compiler data */
2730
2731         m    = jd->m;
2732         code = jd->code;
2733         cd   = jd->cd;
2734
2735         /* set some variables */
2736
2737         md = m->parseddesc;
2738         nativeparams = (m->flags & ACC_STATIC) ? 2 : 1;
2739
2740         /* calculate stackframe size */
2741
2742         cd->stackframesize =
2743                 sizeof(stackframeinfo) / SIZEOF_VOID_P +
2744                 sizeof(localref_table) / SIZEOF_VOID_P +
2745                 4 +                            /* 4 stackframeinfo arguments (darwin)*/
2746                 nmd->paramcount  +
2747                 nmd->memuse;
2748
2749 /*      cd->stackframesize = (cd->stackframesize + 3) & ~3;*/ /* keep stack 16-byte aligned */
2750
2751         /* create method header */
2752
2753         (void) dseg_add_unique_address(cd, code);                      /* CodeinfoPointer */
2754         (void) dseg_add_unique_s4(cd, cd->stackframesize * 8);             /* FrameSize       */
2755         (void) dseg_add_unique_s4(cd, 0);                              /* IsSync          */
2756         (void) dseg_add_unique_s4(cd, 0);                              /* IsLeaf          */
2757         (void) dseg_add_unique_s4(cd, 0);                              /* IntSave         */
2758         (void) dseg_add_unique_s4(cd, 0);                              /* FltSave         */
2759         (void) dseg_addlinenumbertablesize(cd);
2760         (void) dseg_add_unique_s4(cd, 0);                              /* ExTableSize     */
2761
2762         /* generate code */
2763
2764         M_MFLR(REG_ZERO);
2765         M_AST_INTERN(REG_ZERO, REG_SP, LA_LR_OFFSET);
2766         M_STDU(REG_SP, REG_SP, -(cd->stackframesize * 8));
2767
2768 #if !defined(NDEBUG)
2769         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
2770                 emit_verbosecall_enter(jd);
2771 #endif
2772
2773         /* get function address (this must happen before the stackframeinfo) */
2774
2775         funcdisp = dseg_add_functionptr(cd, f);
2776
2777 #if !defined(WITH_STATIC_CLASSPATH)
2778         if (f == NULL) {
2779                 codegen_addpatchref(cd, PATCHER_resolve_native, m, funcdisp);
2780         }
2781 #endif
2782
2783         /* save integer and float argument registers */
2784
2785         j = 0;
2786
2787         for (i = 0; i < md->paramcount; i++) {
2788                 t = md->paramtypes[i].type;
2789
2790                 if (IS_INT_LNG_TYPE(t)) {
2791                         if (!md->params[i].inmemory) {
2792                                 s1 = md->params[i].regoff;
2793                                 M_LST(s1, REG_SP, LA_SIZE + PA_SIZE + 4*8 + j * 8);
2794                                 j++;
2795                         }
2796                 }
2797         }
2798
2799         for (i = 0; i < md->paramcount; i++) {
2800                 if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
2801                         if (!md->params[i].inmemory) {
2802                                 s1 = md->params[i].regoff;
2803                                 M_DST(s1, REG_SP, LA_SIZE + PA_SIZE + 4*8 + j * 8);
2804                                 j++;
2805                         }
2806                 }
2807         }
2808
2809         /* create native stack info */
2810
2811         M_AADD_IMM(REG_SP, cd->stackframesize * 8, REG_A0);
2812         M_MOV(REG_PV, REG_A1);
2813         M_AADD_IMM(REG_SP, cd->stackframesize * 8, REG_A2);
2814         M_ALD(REG_A3, REG_SP, cd->stackframesize * 8 + LA_LR_OFFSET);
2815         disp = dseg_add_functionptr(cd, codegen_start_native_call);
2816
2817         M_ALD(REG_ITMP1, REG_PV, disp);
2818         M_ALD(REG_ITMP1, REG_ITMP1, 0);         /* TOC */
2819         M_MTCTR(REG_ITMP1);
2820         M_JSR;
2821
2822         /* restore integer and float argument registers */
2823
2824         j = 0;
2825
2826         for (i = 0; i < md->paramcount; i++) {
2827                 t = md->paramtypes[i].type;
2828
2829                 if (IS_INT_LNG_TYPE(t)) {
2830                         if (!md->params[i].inmemory) {
2831                                 s1 = md->params[i].regoff;
2832                                 M_LLD(s1, REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + j * 8);
2833                                 j++;
2834                         }
2835                 }
2836         }
2837
2838         for (i = 0; i < md->paramcount; i++) {
2839                 if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
2840                         if (!md->params[i].inmemory) {
2841                                 s1 = md->params[i].regoff;
2842                                 M_DLD(s1, REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + j * 8);
2843                                 j++;
2844                         }
2845                 }
2846         }
2847
2848         /* copy or spill arguments to new locations */
2849
2850         for (i = md->paramcount - 1, j = i + nativeparams; i >= 0; i--, j--) {
2851                 t = md->paramtypes[i].type;
2852
2853                 if (IS_INT_LNG_TYPE(t)) {
2854                         if (!md->params[i].inmemory) {
2855                                 s1 = md->params[i].regoff;
2856                                 s2 = nmd->params[j].regoff;
2857
2858                                 if (!nmd->params[j].inmemory)
2859                                         M_INTMOVE(s1, s2);
2860                                 else
2861                                         M_LST(s1, REG_SP, s2);
2862                         }
2863                         else {
2864                                 s1 = md->params[i].regoff + cd->stackframesize * 8;
2865                                 s2 = nmd->params[j].regoff;
2866
2867                                 M_LLD(REG_ITMP1, REG_SP, s1);
2868                                 M_LST(REG_ITMP1, REG_SP, s2);
2869                         }
2870                 }
2871                 else {
2872                         /* We only copy spilled float arguments, as the float
2873                            argument registers keep unchanged. */
2874
2875                         if (md->params[i].inmemory) {
2876                                 s1 = md->params[i].regoff + cd->stackframesize * 8;
2877                                 s2 = nmd->params[j].regoff;
2878
2879                                 M_DLD(REG_FTMP1, REG_SP, s1);
2880
2881                                 if (IS_2_WORD_TYPE(t))
2882                                         M_DST(REG_FTMP1, REG_SP, s2);
2883                                 else
2884                                         M_FST(REG_FTMP1, REG_SP, s2 + 4);
2885                         }
2886                 }
2887         }
2888
2889         /* put class into second argument register */
2890
2891         if (m->flags & ACC_STATIC) {
2892                 disp = dseg_add_unique_address(cd, m->class);
2893                 M_ALD(REG_A1, REG_PV, disp);
2894         }
2895
2896         /* put env into first argument register */
2897
2898         disp = dseg_add_unique_address(cd, _Jv_env);
2899         M_ALD(REG_A0, REG_PV, disp);
2900
2901         /* generate the actual native call */
2902         /* native functions have a different TOC for sure */
2903
2904         M_AST(REG_TOC, REG_SP, 40);     /* save old TOC */
2905         M_ALD(REG_ITMP3, REG_PV, funcdisp);
2906         M_ALD(REG_TOC, REG_ITMP3, 8);   /* load TOC from func. descriptor */
2907         M_ALD(REG_ITMP3, REG_ITMP3, 0);
2908         M_MTCTR(REG_ITMP3);
2909         M_JSR;
2910         M_ALD(REG_TOC, REG_SP, 40);     /* restore TOC */
2911
2912         /* save return value */
2913
2914         if (md->returntype.type != TYPE_VOID) {
2915                 if (IS_INT_LNG_TYPE(md->returntype.type)) {
2916                         M_LST(REG_RESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
2917                 }
2918                 else {
2919                         M_DST(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
2920                 }
2921         }
2922
2923 #if !defined(NDEBUG)
2924         /* print call trace */
2925
2926         if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
2927                 emit_verbosecall_exit(jd);
2928         }
2929 #endif
2930
2931         /* remove native stackframe info */
2932
2933         M_AADD_IMM(REG_SP, cd->stackframesize * 8, REG_A0);
2934         disp = dseg_add_functionptr(cd, codegen_finish_native_call);
2935         M_ALD(REG_ITMP1, REG_PV, disp);
2936         M_ALD(REG_ITMP1, REG_ITMP1, 0); /* XXX what about TOC? */
2937         M_MTCTR(REG_ITMP1);
2938         M_JSR;
2939         M_MOV(REG_RESULT, REG_ITMP1_XPTR);
2940
2941         /* restore return value */
2942
2943         if (md->returntype.type != TYPE_VOID) {
2944                 if (IS_INT_LNG_TYPE(md->returntype.type)) {
2945                         M_LLD(REG_RESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
2946                 }
2947                 else {
2948 /*                      if (IS_2_WORD_TYPE(md->returntype.type)) */
2949                                 M_DLD(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
2950 /*                      else
2951                                 M_FLD(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8); F XXX
2952                                 */
2953                 }
2954         }
2955
2956         M_ALD(REG_ITMP2_XPC, REG_SP, cd->stackframesize * 8 + LA_LR_OFFSET);
2957         M_MTLR(REG_ITMP2_XPC);
2958         M_LDA(REG_SP, REG_SP, cd->stackframesize * 8); /* remove stackframe           */
2959
2960         /* check for exception */
2961
2962         M_TST(REG_ITMP1_XPTR);
2963         M_BNE(1);                           /* if no exception then return        */
2964
2965         M_RET;
2966
2967         /* handle exception */
2968
2969         M_LADD_IMM(REG_ITMP2_XPC, -4, REG_ITMP2_XPC);  /* exception address       */
2970
2971         disp = dseg_add_functionptr(cd, asm_handle_nat_exception);
2972         M_ALD(REG_ITMP3, REG_PV, disp);
2973         M_MTCTR(REG_ITMP3);
2974         M_RTS;
2975
2976         /* generate patcher stub call code */
2977
2978         emit_patcher_stubs(jd);
2979 }
2980
2981
2982
2983
2984 /*
2985  * These are local overrides for various environment variables in Emacs.
2986  * Please do not remove this and leave it at the end of the file, where
2987  * Emacs will automagically detect them.
2988  * ---------------------------------------------------------------------
2989  * Local variables:
2990  * mode: c
2991  * indent-tabs-mode: t
2992  * c-basic-offset: 4
2993  * tab-width: 4
2994  * End:
2995  * vim:noexpandtab:sw=4:ts=4:
2996  */