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