src/vm/jit/powerpc64/codegen.c

   1 /* src/vm/jit/powerpc64/codegen.c - machine code generator for 64-bit PowerPC
   2
   3    Copyright (C) 1996-2005, 2006, 2007 R. Grafl, A. Krall, C. Kruegel,
   4    C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
   5    E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
   6    J. Wenninger, Institut f. Computersprachen - TU Wien
   7
   8    This file is part of CACAO.
   9
  10    This program is free software; you can redistribute it and/or
  11    modify it under the terms of the GNU General Public License as
  12    published by the Free Software Foundation; either version 2, or (at
  13    your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful, but
  16    WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18    General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program; if not, write to the Free Software
  22    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  23    02110-1301, USA.
  24
  25    $Id: codegen.c 7693 2007-04-12 14:56:49Z michi $
  26
  27 */
  28
  29
  30 #include "config.h"
  31
  32 #include <assert.h>
  33 #include <stdio.h>
  34 #include <signal.h>
  35
  36 #include "vm/types.h"
  37
  38 #include "md-abi.h"
  39
  40 #include "vm/jit/powerpc64/arch.h"
  41 #include "vm/jit/powerpc64/codegen.h"
  42
  43 #include "mm/memory.h"
  44
  45 #include "native/native.h"
  46
  47 #include "vm/builtin.h"
  48 #include "vm/exceptions.h"
  49 #include "vm/global.h"
  50 #include "vm/stringlocal.h"
  51 #include "vm/vm.h"
  52
  53 #include "vm/jit/abi-asm.h"
  54 #include "vm/jit/md.h"
  55 #include "vm/jit/asmpart.h"
  56 #include "vm/jit/codegen-common.h"
  57 #include "vm/jit/dseg.h"
  58 #include "vm/jit/emit-common.h"
  59 #include "vm/jit/jit.h"
  60 #include "vm/jit/parse.h"
  61 #include "vm/jit/patcher.h"
  62 #include "vm/jit/reg.h"
  63 #include "vm/jit/replace.h"
  64 #include "vm/jit/stacktrace.h"
  65
  66 #include "vmcore/loader.h"
  67 #include "vmcore/options.h"
  68
  69 #if defined(ENABLE_LSRA)
  70 # include "vm/jit/allocator/lsra.h"
  71 #endif
  72
  73 #if defined(ENABLE_THREADS)
  74 # include "threads/native/lock.h"
  75 #endif
  76
  77
  78 /* codegen_emit ****************************************************************
  79
  80    Generates machine code.
  81
  82 *******************************************************************************/
  83
  84 bool codegen_emit(jitdata *jd)
  85 {
  86         methodinfo         *m;
  87         codeinfo           *code;
  88         codegendata        *cd;
  89         registerdata       *rd;
  90         s4                  len, s1, s2, s3, d, disp;
  91         ptrint              a;
  92         varinfo            *var;
  93         basicblock         *bptr;
  94         instruction        *iptr;
  95         exception_entry    *ex;
  96         u2                  currentline;
  97         methodinfo         *lm;             /* local methodinfo for ICMD_INVOKE*  */
  98         unresolved_method  *um;
  99         builtintable_entry *bte;
 100         methoddesc         *md;
 101         s4                  fieldtype;
 102         s4                  varindex;
 103         unresolved_field   *uf;
 104         fieldinfo          *fi;
 105
 106         /* get required compiler data */
 107
 108         m    = jd->m;
 109         code = jd->code;
 110         cd   = jd->cd;
 111         rd   = jd->rd;
 112
 113         /* prevent compiler warnings */
 114
 115         d = 0;
 116         lm = NULL;
 117         bte = NULL;
 118
 119         {
 120         s4 i, p, t, l;
 121         s4 savedregs_num;
 122
 123         savedregs_num = 0;
 124
 125         /* space to save used callee saved registers */
 126
 127         savedregs_num += (INT_SAV_CNT - rd->savintreguse);
 128         savedregs_num += (FLT_SAV_CNT - rd->savfltreguse);
 129
 130         cd->stackframesize = rd->memuse + savedregs_num;
 131
 132 #if defined(ENABLE_THREADS)
 133         /* space to save argument of monitor_enter and Return Values to survive */
 134     /* monitor_exit. The stack position for the argument can not be shared  */
 135         /* with place to save the return register on PPC64, since both values     */
 136         /* reside in R3 */
 137         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
 138                 /* reserve 2 slots for long/double return values for monitorexit */
 139                 cd->stackframesize += 2;
 140         }
 141
 142 #endif
 143
 144         /* create method header */
 145
 146         /* align stack to 16-bytes */
 147
 148 /* FIXME */
 149 /*      if (!m->isleafmethod || opt_verbosecall) */
 150 /*              stackframesize = (stackframesize + 3) & ~3;
 151 */
 152 /*      else if (m->isleafmethod && (stackframesize == LA_WORD_SIZE)) */
 153 /*              stackframesize = 0; */
 154
 155         (void) dseg_add_unique_address(cd, code);                      /* CodeinfoPointer */
 156         (void) dseg_add_unique_s4(cd, cd->stackframesize * 8);             /* FrameSize       */
 157
 158 #if defined(ENABLE_THREADS)
 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
 165         if (checksync && (m->flags & ACC_SYNCHRONIZED))
 166                 (void) dseg_add_unique_s4(cd, (rd->memuse + 1) * 8);       /* IsSync          */
 167         else
 168 #endif
 169                 (void) dseg_add_unique_s4(cd, 0);                          /* IsSync          */
 170
 171         (void) dseg_add_unique_s4(cd, jd->isleafmethod);                /* IsLeaf          */
 172         (void) dseg_add_unique_s4(cd, INT_SAV_CNT - rd->savintreguse); /* IntSave         */
 173         (void) dseg_add_unique_s4(cd, FLT_SAV_CNT - rd->savfltreguse); /* FltSave         */
 174
 175         dseg_addlinenumbertablesize(cd);
 176
 177         (void) dseg_add_unique_s4(cd, jd->exceptiontablelength);       /* ExTableSize     */
 178
 179         /* create exception table */
 180
 181         for (ex = jd->exceptiontable; ex != NULL; ex = ex->down) {
 182                 dseg_add_target(cd, ex->start);
 183                 dseg_add_target(cd, ex->end);
 184                 dseg_add_target(cd, ex->handler);
 185                 (void) dseg_add_unique_address(cd, ex->catchtype.any);
 186         }
 187
 188         /* create stack frame (if necessary) */
 189
 190         if (!jd->isleafmethod) {
 191                 M_MFLR(REG_ZERO);
 192                 M_AST(REG_ZERO, REG_SP, LA_LR_OFFSET);
 193         }
 194
 195         if (cd->stackframesize)
 196                 M_STDU(REG_SP, REG_SP, -cd->stackframesize * 8);
 197
 198         /* save return address and used callee saved registers */
 199
 200         p = cd->stackframesize;
 201         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
 202                 p--; M_LST(rd->savintregs[i], REG_SP, p * 8);
 203         }
 204         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
 205                 p --; M_DST(rd->savfltregs[i], REG_SP, p * 8);
 206         }
 207
 208         /* take arguments out of register or stack frame */
 209
 210         md = m->parseddesc;
 211
 212         for (p = 0, l = 0; p < md->paramcount; p++) {
 213                 t = md->paramtypes[p].type;
 214                 varindex = jd->local_map[l*5 + t];
 215                 l++;
 216                 if (IS_2_WORD_TYPE(t))    /* increment local counter for 2 word types */
 217                         l++;
 218                 if (varindex == UNUSED)
 219                         continue;
 220                 var = VAR(varindex);
 221                 s1 = md->params[p].regoff;
 222                 if (IS_INT_LNG_TYPE(t)) {                    /* integer args          */
 223                         if (!md->params[p].inmemory) {           /* register arguments    */
 224                                 s2 = rd->argintregs[s1];
 225                                 if (!IS_INMEMORY(var->flags))   {
 226                                         M_INTMOVE(s2, var->vv.regoff);
 227                                 } else {                             /* reg arg -> spilled    */
 228                                         M_LST(s2, REG_SP, var->vv.regoff * 8);
 229                                 }
 230                         } else {                                 /* stack arguments       */
 231                                 if (!IS_INMEMORY(var->flags)) {      /* stack arg -> register */
 232                                         M_LLD(var->vv.regoff, REG_SP, (cd->stackframesize + s1) * 8);
 233
 234                                 } else {                             /* stack arg -> spilled  */
 235                                         var->vv.regoff = cd->stackframesize + s1;
 236                                 }
 237                         }
 238
 239                 } else {                                     /* floating args         */
 240                         if (!md->params[p].inmemory) {           /* register arguments    */
 241                                 s2 = rd->argfltregs[s1];
 242                                 if (!IS_INMEMORY(var->flags)) {      /* reg arg -> register   */
 243                                         M_FLTMOVE(s2, var->vv.regoff);
 244                                 } else {                                         /* reg arg -> spilled    */
 245                                         M_DST(s2, REG_SP, var->vv.regoff * 8);
 246                                 }
 247
 248                         } else {                                 /* stack arguments       */
 249                                 if (!(var->flags & INMEMORY)) {      /* stack-arg -> register */
 250                                         if (IS_2_WORD_TYPE(t)) {
 251                                                 M_DLD(var->vv.regoff, REG_SP, (cd->stackframesize + s1) * 8);
 252                                         } else {
 253                                                 M_DLD(var->vv.regoff, REG_SP, (cd->stackframesize + s1) * 8);
 254                                         }
 255                                 } else {                             /* stack-arg -> spilled  */
 256                                         var->vv.regoff = cd->stackframesize + s1;
 257                                 }
 258                         }
 259                 }
 260         } /* end for */
 261
 262         /* save monitorenter argument */
 263
 264 #if defined(ENABLE_THREADS)
 265
 266         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
 267
 268                 /* stackoffset for argument used for LOCK_monitor_exit */
 269                 s1 = rd->memuse;
 270 #if !defined (NDEBUG)
 271                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 272                         M_AADD_IMM(REG_SP, -((LA_SIZE_IN_POINTERS + PA_SIZE_IN_POINTERS + ARG_CNT) * 8), REG_SP);
 273
 274                         for (p = 0; p < INT_ARG_CNT; p++)
 275                                 M_LST(rd->argintregs[p], REG_SP, LA_SIZE + PA_SIZE + p * 8);
 276
 277                         for (p = 0; p < FLT_ARG_CNT; p++)
 278                                 M_DST(rd->argfltregs[p], REG_SP, LA_SIZE + PA_SIZE + (INT_ARG_CNT + p) * 8);
 279
 280                         /* used for LOCK_monitor_exit, adopt size because we created another stackframe */
 281                         s1 += (LA_SIZE_IN_POINTERS + PA_SIZE_IN_POINTERS + ARG_CNT);
 282                 }
 283 #endif
 284                 p = dseg_add_functionptr(cd, LOCK_monitor_enter);
 285                 M_ALD(REG_ITMP3, REG_PV, p);
 286                 M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
 287                 M_MTCTR(REG_ITMP3);
 288
 289                 /* get or test the lock object */
 290
 291                 if (m->flags & ACC_STATIC) {
 292                         p = dseg_add_address(cd, &m->class->object.header);
 293                         M_ALD(rd->argintregs[0], REG_PV, p);
 294                 }
 295                 else {
 296                         M_TST(rd->argintregs[0]);
 297                         M_BNE(1);
 298                         M_ALD_INTERN(REG_ZERO, REG_ZERO, EXCEPTION_HARDWARE_NULLPOINTER);
 299                 }
 300
 301                 M_AST(rd->argintregs[0], REG_SP, s1 * 8);       /* rd->memuse * 8 */
 302                 M_JSR;
 303 #if !defined (NDEBUG)
 304                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 305                         for (p = 0; p < INT_ARG_CNT; p++)
 306                                 M_LLD(rd->argintregs[p], REG_SP, LA_SIZE + PA_SIZE + p * 8);
 307
 308                         for (p = 0; p < FLT_ARG_CNT; p++)
 309                                 M_DLD(rd->argfltregs[p], REG_SP, LA_SIZE + PA_SIZE + (INT_ARG_CNT + p) * 8);
 310
 311                         M_AADD_IMM(REG_SP, (LA_SIZE_IN_POINTERS + PA_SIZE_IN_POINTERS + ARG_CNT) * 8, REG_SP);
 312                 }
 313 #endif
 314         }
 315 #endif
 316
 317         /* call trace function */
 318 #if !defined (NDEBUG)
 319         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
 320                 emit_verbosecall_enter(jd);
 321
 322         }
 323 #endif
 324
 325         /* end of header generation */
 326
 327         /* create replacement points */
 328
 329         REPLACEMENT_POINTS_INIT(cd, jd);
 330
 331         /* walk through all basic blocks */
 332
 333         for (bptr = jd->basicblocks; bptr != NULL; bptr = bptr->next) {
 334
 335                 bptr->mpc = (s4) (cd->mcodeptr - cd->mcodebase);
 336
 337                 if (bptr->flags >= BBREACHED) {
 338
 339                 /* branch resolving */
 340                 codegen_resolve_branchrefs(cd, bptr);
 341
 342                 /* handle replacement points */
 343
 344                 REPLACEMENT_POINT_BLOCK_START(cd, bptr);
 345
 346                 /* copy interface registers to their destination */
 347
 348                 len = bptr->indepth;
 349                 MCODECHECK(64+len);
 350
 351 #if defined(ENABLE_LSRA)
 352                 if (opt_lsra) {
 353                         while (len) {
 354                                 len--;
 355                                 var = VAR(bptr->invars[len]);
 356                                 if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 357                                         /* d = reg_of_var(m, var, REG_ITMP1); */
 358                                         if (!(var->flags & INMEMORY))
 359                                                 d = var->vv.regoff;
 360                                         else
 361                                                 d = REG_ITMP1;
 362                                         M_INTMOVE(REG_ITMP1, d);
 363                                         emit_store(jd, NULL, var, d);
 364                                 }
 365                         }
 366                 } else {
 367 #endif
 368                 while (len) {
 369                         len--;
 370                         var = VAR(bptr->invars[len]);
 371                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 372                                 d = codegen_reg_of_var(0, var, REG_ITMP1);
 373                                 M_INTMOVE(REG_ITMP1, d);
 374                                 emit_store(jd, NULL, var, d);
 375                         }
 376                         else {
 377                                 assert((var->flags & INOUT));
 378                         }
 379                 }
 380
 381 #if defined(ENABLE_LSRA)
 382                 }
 383 #endif
 384                 /* walk through all instructions */
 385
 386                 len = bptr->icount;
 387                 currentline = 0;
 388
 389                 for (iptr = bptr->iinstr; len > 0; len--, iptr++) {
 390                         bool sign_ext = false;
 391                         if (iptr->line != currentline) {
 392                                 dseg_addlinenumber(cd, iptr->line);
 393                                 currentline = iptr->line;
 394                         }
 395
 396                         MCODECHECK(64);   /* an instruction usually needs < 64 words      */
 397
 398                 switch (iptr->opc) {
 399                 case ICMD_NOP:        /* ...  ==> ...                                 */
 400                 case ICMD_POP:        /* ..., value  ==> ...                          */
 401                 case ICMD_POP2:       /* ..., value, value  ==> ...                   */
 402                         break;
 403
 404                 case ICMD_INLINE_START:
 405
 406                         REPLACEMENT_POINT_INLINE_START(cd, iptr);
 407                         break;
 408
 409                 case ICMD_INLINE_BODY:
 410
 411                         REPLACEMENT_POINT_INLINE_BODY(cd, iptr);
 412                         dseg_addlinenumber_inline_start(cd, iptr);
 413                         dseg_addlinenumber(cd, iptr->line);
 414                         break;
 415
 416                 case ICMD_INLINE_END:
 417
 418                         dseg_addlinenumber_inline_end(cd, iptr);
 419                         dseg_addlinenumber(cd, iptr->line);
 420                         break;
 421
 422                 case ICMD_CHECKNULL:  /* ..., objectref  ==> ..., objectref           */
 423
 424                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 425                         M_TST(s1);
 426                         M_BEQ(0);
 427                         emit_nullpointer_check(cd, iptr, s1);
 428                         break;
 429
 430                 /* constant operations ************************************************/
 431
 432                 case ICMD_ICONST:     /* ...  ==> ..., constant                       */
 433
 434                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 435                         ICONST(d, iptr->sx.val.i);
 436                         emit_store_dst(jd, iptr, d);
 437                         break;
 438
 439                 case ICMD_LCONST:     /* ...  ==> ..., constant                       */
 440
 441                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 442                         LCONST(d, iptr->sx.val.l);
 443                         emit_store_dst(jd, iptr, d);
 444                         break;
 445
 446                 case ICMD_FCONST:     /* ...  ==> ..., constant                       */
 447
 448                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 449                         a = dseg_add_float(cd, iptr->sx.val.f);
 450                         M_FLD(d, REG_PV, a);
 451                         emit_store_dst(jd, iptr, d);
 452                         break;
 453
 454                 case ICMD_DCONST:     /* ...  ==> ..., constant                       */
 455
 456                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 457                         a = dseg_add_double(cd, iptr->sx.val.d);
 458                         M_DLD(d, REG_PV, a);
 459                         emit_store_dst(jd, iptr, d);
 460                         break;
 461
 462                 case ICMD_ACONST:     /* ...  ==> ..., constant                       */
 463
 464                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 465
 466                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
 467                                 disp = dseg_add_unique_address(cd, iptr->sx.val.c.ref);
 468                                 codegen_addpatchref(cd, PATCHER_aconst,
 469                                                                         iptr->sx.val.c.ref,
 470                                                                     disp);
 471                         } else  {
 472                                 disp = dseg_add_address(cd, iptr->sx.val.anyptr);
 473                         }
 474                         M_ALD(d, REG_PV, disp);
 475                         emit_store_dst(jd, iptr, d);
 476                         break;
 477
 478
 479                 /* load/store/copy/move operations ************************************/
 480
 481                 case ICMD_ILOAD:      /* ...  ==> ..., content of local variable      */
 482                 case ICMD_ALOAD:      /* s1.localindex = local variable               */
 483                 case ICMD_LLOAD:
 484                 case ICMD_FLOAD:      /* ...  ==> ..., content of local variable      */
 485                 case ICMD_DLOAD:      /* ...  ==> ..., content of local variable      */
 486                 case ICMD_ISTORE:     /* ..., value  ==> ...                          */
 487                 case ICMD_LSTORE:
 488                 case ICMD_FSTORE:     /* ..., value  ==> ...                          */
 489                 case ICMD_DSTORE:     /* ..., value  ==> ...                          */
 490                 case ICMD_COPY:
 491                 case ICMD_MOVE:
 492
 493                         emit_copy(jd, iptr, VAROP(iptr->s1), VAROP(iptr->dst));
 494                         break;
 495
 496                 case ICMD_ASTORE:
 497                         if (!(iptr->flags.bits & INS_FLAG_RETADDR))
 498                                 emit_copy(jd, iptr, VAROP(iptr->s1), VAROP(iptr->dst));
 499                         break;
 500
 501
 502                 /* integer operations *************************************************/
 503
 504                 case ICMD_INEG:       /* ..., value  ==> ..., - value                 */
 505                         sign_ext = true;
 506                 case ICMD_LNEG:
 507                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 508                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 509                         M_NEG(s1, d);
 510                         if (sign_ext) M_EXTSW(d, d);
 511                         emit_store_dst(jd, iptr, d);
 512                         break;
 513
 514
 515                 case ICMD_I2L:        /* ..., value  ==> ..., value                   */
 516
 517                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 518                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 519                         M_INTMOVE(s1, d);
 520                         emit_store_dst(jd, iptr, d);
 521                         break;
 522
 523                 case ICMD_L2I:        /* ..., value  ==> ..., value                   */
 524
 525                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 526                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 527                         M_ISEXT(s1, d);
 528                         emit_store_dst(jd, iptr, d);
 529                         break;
 530
 531                 case ICMD_INT2BYTE:   /* ..., value  ==> ..., value                   */
 532
 533                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 534                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 535                         M_BSEXT(s1, d);
 536                         emit_store_dst(jd, iptr, d);
 537                         break;
 538
 539                 case ICMD_INT2CHAR:   /* ..., value  ==> ..., value                   */
 540
 541                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 542                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 543                         M_CZEXT(s1, d);
 544                         emit_store_dst(jd, iptr, d);
 545                         break;
 546
 547                 case ICMD_INT2SHORT:  /* ..., value  ==> ..., value                   */
 548
 549                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 550                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 551                         M_SSEXT(s1, d);
 552                         emit_store_dst(jd, iptr, d);
 553                         break;
 554
 555
 556                 case ICMD_IADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 557
 558                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 559                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 560                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 561                         M_IADD(s1, s2, d);
 562                         M_EXTSW(d,d);
 563                         emit_store_dst(jd, iptr, d);
 564                         break;
 565
 566                 case ICMD_IINC:
 567                 case ICMD_IADDCONST:
 568
 569                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 570                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 571                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767)) {
 572                                 M_IADD_IMM(s1, iptr->sx.val.i, d);
 573                         } else {
 574                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 575                                 M_IADD(s1, REG_ITMP2, d);
 576                         }
 577                         M_EXTSW(d,d);
 578                         emit_store_dst(jd, iptr, d);
 579                         break;
 580
 581                 case ICMD_LADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 582
 583                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 584                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 585                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 586                         M_LADD(s1, s2, d);
 587                         emit_store_dst(jd, iptr, d);
 588                         break;
 589
 590                 case ICMD_LADDCONST:  /* ..., value  ==> ..., value + constant        */
 591                                       /* sx.val.l = constant                          */
 592
 593                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 594                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 595                         /* XXX check me */
 596                         if ((iptr->sx.val.l >= -32768) && (iptr->sx.val.l <= 32767)) {
 597                                 M_LADD_IMM(s1, iptr->sx.val.l, d);
 598                         } else {
 599                                 LCONST(REG_ITMP2, iptr->sx.val.l);
 600                                 M_LADD(s1, REG_ITMP2, d);
 601                         }
 602                         emit_store_dst(jd, iptr, d);
 603                         break;
 604
 605                 case ICMD_ISUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 606
 607                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 608                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 609                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 610                         M_SUB(s1, s2, d);
 611                         emit_store_dst(jd, iptr, d);
 612                         break;
 613
 614                 case ICMD_ISUBCONST:  /* ..., value  ==> ..., value + constant        */
 615                                       /* sx.val.i = constant                          */
 616
 617                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 618                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 619                         if ((iptr->sx.val.i >= -32767) && (iptr->sx.val.i <= 32768)) {
 620                                 M_IADD_IMM(s1, -iptr->sx.val.i, d);
 621                         } else {
 622                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 623                                 M_SUB(s1, REG_ITMP2, d);
 624                         }
 625                         M_EXTSW(d, d);
 626                         emit_store_dst(jd, iptr, d);
 627                         break;
 628
 629                 case ICMD_LSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 630
 631                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 632                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 633                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 634                         M_SUB(s1, s2, d);
 635                         emit_store_dst(jd, iptr, d);
 636                         break;
 637
 638                 case ICMD_LSUBCONST:  /* ..., value  ==> ..., value - constant        */
 639                                       /* sx.val.l = constant                          */
 640
 641                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 642                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 643                         /* XXX check me */
 644                         if ((iptr->sx.val.l >= -32767) && (iptr->sx.val.l <= 32767)) {
 645                                 M_LADD_IMM(s1, -iptr->sx.val.l, d);
 646                         } else {
 647                                 LCONST(REG_ITMP2, iptr->sx.val.l);
 648                                 M_SUB(s1, REG_ITMP2, d);
 649                         }
 650                         emit_store_dst(jd, iptr, d);
 651                         break;
 652
 653                 case ICMD_IDIV:
 654                         sign_ext = true;
 655                 case ICMD_LDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 656
 657                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 658                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 659                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 660                         emit_arithmetic_check(cd, iptr, s2);
 661
 662                         M_DIV(s1, s2, d);
 663                         /* we need to test if divident was 0x8000000000000, bit OV is set in XER in this case */
 664                         /* we only need to check this if we did a LDIV, not for IDIV */
 665                         if (!sign_ext)  {
 666                                 M_MFXER(REG_ITMP2);
 667                                 M_ANDIS(REG_ITMP2, 0x4000, REG_ITMP2);  /* test OV */
 668                                 M_BLE(1);
 669                                 M_MOV(s1, d);                           /* java specs says result == dividend */
 670                         }
 671                         if (sign_ext) M_EXTSW(d, d);
 672                         emit_store_dst(jd, iptr, d);
 673                         break;
 674
 675                 case ICMD_IREM:
 676                         sign_ext = true;
 677                 case ICMD_LREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 678                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 679                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 680                         emit_arithmetic_check(cd, iptr, s2);
 681
 682                         M_DIV(s1, s2,  REG_ITMP3);
 683                         /* we need to test if divident was 0x8000000000000, bit OV is set in XER in this case */
 684                         /* we only need to check this if we did a LDIV, not for IDIV */
 685                         if (!sign_ext)  {
 686                                 M_MFXER(REG_ITMP2);
 687                                 M_ANDIS(REG_ITMP2, 0x4000, REG_ITMP2);  /* test OV */
 688                                 M_BLE(2);
 689                                 LCONST(REG_ITMP3, 0);                   /* result == 0 in this case */
 690                                 M_BR(2);
 691                         }
 692                         M_MUL(REG_ITMP3, s2, REG_ITMP2);
 693                         M_SUB(s1, REG_ITMP2,  REG_ITMP3);
 694                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 695
 696                         M_MOV(REG_ITMP3, d);
 697                         emit_store_dst(jd, iptr, REG_ITMP1);
 698                         break;
 699
 700
 701                 case ICMD_IMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 702                         sign_ext = true;
 703                 case ICMD_LMUL:
 704                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 705                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 706                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 707                         M_MUL(s1, s2, d);
 708                         if (sign_ext) M_EXTSW(d, d);
 709                         emit_store_dst(jd, iptr, d);
 710                         break;
 711
 712                 case ICMD_IMULCONST:  /* ..., value  ==> ..., value * constant        */
 713                                       /* sx.val.i = constant                          */
 714
 715                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 716                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 717                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767))
 718                                 M_MUL_IMM(s1, iptr->sx.val.i, d);
 719                         else {
 720                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 721                                 M_MUL(s1, REG_ITMP3, d);
 722                         }
 723                         M_EXTSW(d, d);
 724                         emit_store_dst(jd, iptr, d);
 725                         break;
 726                 case ICMD_LMULCONST:
 727                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 728                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 729                         if ((iptr->sx.val.l >= -32767) && (iptr->sx.val.l <= 32767))
 730                                 M_MUL_IMM(s1, iptr->sx.val.l, d);
 731                         else {
 732                                 LCONST(REG_ITMP3, iptr->sx.val.l);
 733                                 M_MUL(s1, REG_ITMP3, d);
 734                         }
 735                         emit_store_dst(jd, iptr, d);
 736                         break;
 737
 738                 case ICMD_IDIVPOW2:   /* ..., value  ==> ..., value << constant       */
 739
 740                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 741                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 742                         M_SRA_IMM(s1, iptr->sx.val.i, d);
 743                         M_ADDZE(d, d);
 744                         emit_store_dst(jd, iptr, d);
 745                         break;
 746
 747                 case ICMD_ISHL:       /* ..., val1, val2  ==> ..., val1 << val2       */
 748
 749                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 750                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 751                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 752                         M_AND_IMM(s2, 0x1f, REG_ITMP3);
 753                         M_SLL(s1, REG_ITMP3, d);
 754                         M_EXTSW(d, d);
 755                         emit_store_dst(jd, iptr, d);
 756                         break;
 757
 758                 case ICMD_ISHLCONST:  /* ..., value  ==> ..., value << constant       */
 759                                       /* sx.val.i = constant                             */
 760
 761                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 762                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 763                         M_SLL_IMM(s1, iptr->sx.val.i & 0x1f, d);
 764                         M_EXTSW(d,d);
 765                         emit_store_dst(jd, iptr, d);
 766                         break;
 767
 768                 case ICMD_ISHR:       /* ..., val1, val2  ==> ..., val1 >> val2       */
 769
 770                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 771                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 772                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 773                         M_AND_IMM(s2, 0x1f, REG_ITMP3);
 774                         M_SRA(s1, REG_ITMP3, d);
 775                         emit_store_dst(jd, iptr, d);
 776                         break;
 777
 778                 case ICMD_ISHRCONST:  /* ..., value  ==> ..., value >> constant       */
 779                                       /* sx.val.i = constant                             */
 780
 781                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 782                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 783                         M_SRA_IMM(s1, iptr->sx.val.i & 0x1f, d);
 784                         emit_store_dst(jd, iptr, d);
 785                         break;
 786
 787                 case ICMD_IUSHR:      /* ..., val1, val2  ==> ..., val1 >>> val2      */
 788
 789                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 790                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 791                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 792                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 793                         M_MOV(s1, REG_ITMP1);
 794                         M_CLR_HIGH(REG_ITMP1);
 795                         M_SRL(REG_ITMP1, REG_ITMP2, d);
 796                         emit_store_dst(jd, iptr, d);
 797                         break;
 798
 799                 case ICMD_IUSHRCONST: /* ..., value  ==> ..., value >>> constant      */
 800                                       /* sx.val.i = constant                             */
 801
 802                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 803                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 804                         if (iptr->sx.val.i & 0x1f) {
 805                                 M_MOV(s1, REG_ITMP1);
 806                                 M_CLR_HIGH(REG_ITMP1);
 807                                 M_SRA_IMM(REG_ITMP1, iptr->sx.val.i & 0x1f, d);
 808                         } else {
 809                                 M_INTMOVE(s1, d);
 810                         }
 811                         emit_store_dst(jd, iptr, d);
 812                         break;
 813
 814                 case ICMD_LSHLCONST:
 815                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 816                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 817                         M_SLL_IMM(s1, iptr->sx.val.i & 0x3f, d);
 818                         emit_store_dst(jd, iptr, d);
 819                         break;
 820                 case ICMD_LSHL:
 821                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 822                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 823                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 824                         M_AND_IMM(s2, 0x3f, REG_ITMP2);
 825                         M_SLL(s1, REG_ITMP2, d);
 826                         emit_store_dst(jd, iptr, d);
 827                         break;
 828                 case ICMD_LSHRCONST:
 829                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 830                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 831                         M_SRA_IMM(s1, iptr->sx.val.i & 0x3f, d);
 832                         emit_store_dst(jd, iptr, d);
 833                         break;
 834                 case ICMD_LSHR:
 835                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 836                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 837                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 838                         M_SRA(s1, s2, d);
 839                         emit_store_dst(jd, iptr, d);
 840                         break;
 841                 case ICMD_LUSHRCONST:
 842                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 843                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 844                         M_SRL_IMM(s1, iptr->sx.val.i & 0x3f, d);
 845                         emit_store_dst(jd, iptr, d);
 846                         break;
 847                 case ICMD_LUSHR:
 848                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 849                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 850                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 851                         M_AND_IMM(s2, 0x3f, REG_ITMP2);
 852                         M_SRL(s1, REG_ITMP2, d);
 853                         emit_store_dst(jd, iptr, d);
 854                         break;
 855
 856                 case ICMD_IAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 857                 case ICMD_LAND:
 858
 859                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 860                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 861                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 862                         M_AND(s1, s2, d);
 863                         emit_store_dst(jd, iptr, d);
 864                         break;
 865
 866                 case ICMD_IANDCONST:  /* ..., value  ==> ..., value & constant        */
 867                                       /* sx.val.i = constant                          */
 868
 869                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 870                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 871                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535)) {
 872                                 M_AND_IMM(s1, iptr->sx.val.i, d);
 873                                 }
 874                         /*
 875                         else if (iptr->sx.val.i == 0xffffff) {
 876                                 M_RLWINM(s1, 0, 8, 31, d);
 877                                 }
 878                         */
 879                         else {
 880                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 881                                 M_AND(s1, REG_ITMP3, d);
 882                         }
 883                         emit_store_dst(jd, iptr, d);
 884                         break;
 885
 886                 case ICMD_LANDCONST:  /* ..., value  ==> ..., value & constant        */
 887                                       /* sx.val.l = constant                          */
 888
 889                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 890                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 891                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
 892                                 M_AND_IMM(s1, iptr->sx.val.l, d);
 893                         /*
 894                         else if (iptr->sx.val.l == 0xffffff) {
 895                                 M_RLWINM(s1, 0, 8, 31, d);
 896                                 }
 897                         */
 898                         else {
 899                                 LCONST(REG_ITMP3, iptr->sx.val.l);
 900                                 M_AND(s1, REG_ITMP3, d);
 901                         }
 902                         emit_store_dst(jd, iptr, d);
 903                         break;
 904
 905                 case ICMD_IREMPOW2:   /* ..., value  ==> ..., value % constant        */
 906                                       /* sx.val.i = constant                             */
 907                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 908                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 909                         M_MOV(s1, REG_ITMP2);
 910                         M_CMPI(s1, 0);
 911                         M_BGE(1 + 2*(iptr->sx.val.i >= 32768));
 912                         if (iptr->sx.val.i >= 32768) {
 913                                 M_ADDIS(REG_ZERO, iptr->sx.val.i >> 16, REG_ITMP2);
 914                                 M_OR_IMM(REG_ITMP2, iptr->sx.val.i, REG_ITMP2);
 915                                 M_IADD(s1, REG_ITMP2, REG_ITMP2);
 916                         } else {
 917                                 M_IADD_IMM(s1, iptr->sx.val.i, REG_ITMP2);
 918                         }
 919                         {
 920                                 int b=0, m = iptr->sx.val.i;
 921                                 while (m >>= 1)
 922                                         ++b;
 923                                 M_RLWINM(REG_ITMP2, 0, 0, 30-b, REG_ITMP2);
 924                         }
 925                         M_SUB(s1, REG_ITMP2, d);
 926                         M_EXTSW(d, d);
 927                         emit_store_dst(jd, iptr, d);
 928                         break;
 929
 930                 case ICMD_IOR:        /* ..., val1, val2  ==> ..., val1 | val2        */
 931                 case ICMD_LOR:
 932
 933                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 934                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 935                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 936                         M_OR(s1, s2, d);
 937                         emit_store_dst(jd, iptr, d);
 938                         break;
 939
 940                 case ICMD_IORCONST:   /* ..., value  ==> ..., value | constant        */
 941                                       /* sx.val.i = constant                          */
 942
 943                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 944                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 945                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
 946                                 M_OR_IMM(s1, iptr->sx.val.i, d);
 947                         else {
 948                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 949                                 M_OR(s1, REG_ITMP3, d);
 950                         }
 951                         emit_store_dst(jd, iptr, d);
 952                         break;
 953
 954                 case ICMD_LORCONST:   /* ..., value  ==> ..., value | constant        */
 955                                       /* sx.val.l = constant                          */
 956
 957                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 958                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 959                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
 960                                 M_OR_IMM(s1, iptr->sx.val.l, d);
 961                         else {
 962                                 LCONST(REG_ITMP3, iptr->sx.val.l);
 963                                 M_OR(s1, REG_ITMP3, d);
 964                         }
 965                         emit_store_dst(jd, iptr, d);
 966                         break;
 967
 968
 969                 case ICMD_IXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
 970                 case ICMD_LXOR:
 971
 972                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 973                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 974                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 975                         M_XOR(s1, s2, d);
 976                         emit_store_dst(jd, iptr, d);
 977                         break;
 978
 979                 case ICMD_IXORCONST:  /* ..., value  ==> ..., value ^ constant        */
 980                                       /* sx.val.i = constant                          */
 981
 982                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 983                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 984                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
 985                                 M_XOR_IMM(s1, iptr->sx.val.i, d);
 986                         else {
 987                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 988                                 M_XOR(s1, REG_ITMP3, d);
 989                         }
 990                         emit_store_dst(jd, iptr, d);
 991                         break;
 992
 993                 case ICMD_LXORCONST:  /* ..., value  ==> ..., value ^ constant        */
 994                                       /* sx.val.l = constant                          */
 995
 996                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 997                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 998                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
 999                                 M_XOR_IMM(s1, iptr->sx.val.l, d);
1000                         else {
1001                                 LCONST(REG_ITMP3, iptr->sx.val.l);
1002                                 M_XOR(s1, REG_ITMP3, d);
1003                         }
1004                         emit_store_dst(jd, iptr, d);
1005                         break;
1006
1007                 case ICMD_LCMP:       /* ..., val1, val2  ==> ..., val1 cmp val2      */
1008
1009                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1010                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1011                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
1012                         /* XXX implement me!!! */
1013                         vm_abort("codegen: implement ICMD_LCMP!");
1014                         emit_store_dst(jd, iptr, d);
1015                         break;
1016                         break;
1017
1018
1019                 /* floating operations ************************************************/
1020
1021                 case ICMD_FNEG:       /* ..., value  ==> ..., - value                 */
1022
1023                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1024                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1025                         M_FMOVN(s1, d);
1026                         emit_store_dst(jd, iptr, d);
1027                         break;
1028
1029                 case ICMD_DNEG:       /* ..., value  ==> ..., - value                 */
1030
1031                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1032                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1033                         M_FMOVN(s1, d);
1034                         emit_store_dst(jd, iptr, d);
1035                         break;
1036
1037                 case ICMD_FADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
1038
1039                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1040                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1041                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1042                         M_FADD(s1, s2, d);
1043                         emit_store_dst(jd, iptr, d);
1044                         break;
1045
1046                 case ICMD_DADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
1047
1048                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1049                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1050                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1051                         M_DADD(s1, s2, d);
1052                         emit_store_dst(jd, iptr, d);
1053                         break;
1054
1055                 case ICMD_FSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
1056
1057                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1058                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1059                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1060                         M_FSUB(s1, s2, d);
1061                         emit_store_dst(jd, iptr, d);
1062                         break;
1063
1064                 case ICMD_DSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
1065
1066                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1067                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1068                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1069                         M_DSUB(s1, s2, d);
1070                         emit_store_dst(jd, iptr, d);
1071                         break;
1072
1073                 case ICMD_FMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1074
1075                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1076                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1077                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1078                         M_FMUL(s1, s2, d);
1079                         emit_store_dst(jd, iptr, d);
1080                         break;
1081
1082                 case ICMD_DMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1083
1084                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1085                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1086                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1087                         M_DMUL(s1, s2, d);
1088                         emit_store_dst(jd, iptr, d);
1089                         break;
1090
1091                 case ICMD_FDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1092
1093                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1094                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1095                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1096                         M_FDIV(s1, s2, d);
1097                         emit_store_dst(jd, iptr, d);
1098                         break;
1099
1100                 case ICMD_DDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1101
1102                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1103                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1104                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1105                         M_DDIV(s1, s2, d);
1106                         emit_store_dst(jd, iptr, d);
1107                         break;
1108
1109                 case ICMD_F2I:       /* ..., value  ==> ..., (int) value              */
1110                 case ICMD_D2I:
1111
1112                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1113                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1114                         M_CLR(d);
1115                         disp = dseg_add_float(cd, 0.0);
1116                         M_FLD(REG_FTMP2, REG_PV, disp);
1117                         M_FCMPU(s1, REG_FTMP2);
1118                         M_BNAN(4);
1119                         disp = dseg_add_unique_s4(cd, 0);
1120                         M_CVTDL_C(s1, REG_FTMP1);
1121                         M_LDA(REG_ITMP1, REG_PV, disp);
1122                         M_STFIWX(REG_FTMP1, 0, REG_ITMP1);
1123                         M_ILD(d, REG_PV, disp);
1124                         emit_store_dst(jd, iptr, d);
1125                         break;
1126
1127                 case ICMD_F2D:       /* ..., value  ==> ..., (double) value           */
1128
1129                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1130                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1131                         M_FLTMOVE(s1, d);
1132                         emit_store_dst(jd, iptr, d);
1133                         break;
1134
1135                 case ICMD_D2F:       /* ..., value  ==> ..., (double) value           */
1136
1137                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1138                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1139                         M_CVTDF(s1, d);
1140                         emit_store_dst(jd, iptr, d);
1141                         break;
1142
1143                 case ICMD_FCMPL:      /* ..., val1, val2  ==> ..., val1 fcmpg val2    */
1144                 case ICMD_DCMPL:      /* == => 0, < => 1, > => -1                     */
1145
1146
1147                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1148                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1149                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1150                         M_FCMPU(s2, s1);
1151                         M_IADD_IMM(REG_ZERO, -1, d);
1152                         M_BNAN(4);
1153                         M_BGT(3);
1154                         M_IADD_IMM(REG_ZERO, 0, d);
1155                         M_BGE(1);
1156                         M_IADD_IMM(REG_ZERO, 1, d);
1157                         emit_store_dst(jd, iptr, d);
1158                         break;
1159
1160                 case ICMD_FCMPG:      /* ..., val1, val2  ==> ..., val1 fcmpl val2    */
1161                 case ICMD_DCMPG:      /* == => 0, < => 1, > => -1                     */
1162
1163                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1164                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1165                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1166                         M_FCMPU(s1, s2);
1167                         M_IADD_IMM(REG_ZERO, 1, d);
1168                         M_BNAN(4);
1169                         M_BGT(3);
1170                         M_IADD_IMM(REG_ZERO, 0, d);
1171                         M_BGE(1);
1172                         M_IADD_IMM(REG_ZERO, -1, d);
1173                         emit_store_dst(jd, iptr, d);
1174                         break;
1175
1176                 case ICMD_IF_FCMPEQ:    /* ..., value, value ==> ...                  */
1177                 case ICMD_IF_DCMPEQ:
1178
1179                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1180                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1181                         M_FCMPU(s1, s2);
1182                         M_BNAN(1);
1183                         emit_beq(cd, iptr->dst.block);
1184                         break;
1185
1186                 case ICMD_IF_FCMPNE:    /* ..., value, value ==> ...                  */
1187                 case ICMD_IF_DCMPNE:
1188
1189                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1190                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1191                         M_FCMPU(s1, s2);
1192                         emit_bnan(cd, iptr->dst.block);
1193                         emit_bne(cd, iptr->dst.block);
1194                         break;
1195
1196
1197                 case ICMD_IF_FCMPL_LT:  /* ..., value, value ==> ...                  */
1198                 case ICMD_IF_DCMPL_LT:
1199
1200                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1201                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1202                         M_FCMPU(s1, s2);
1203                         emit_bnan(cd, iptr->dst.block);
1204                         emit_blt(cd, iptr->dst.block);
1205                         break;
1206
1207                 case ICMD_IF_FCMPL_GT:  /* ..., value, value ==> ...                  */
1208                 case ICMD_IF_DCMPL_GT:
1209
1210                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1211                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1212                         M_FCMPU(s1, s2);
1213                         M_BNAN(1);
1214                         emit_bgt(cd, iptr->dst.block);
1215                         break;
1216
1217                 case ICMD_IF_FCMPL_LE:  /* ..., value, value ==> ...                  */
1218                 case ICMD_IF_DCMPL_LE:
1219
1220                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1221                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1222                         M_FCMPU(s1, s2);
1223                         emit_bnan(cd, iptr->dst.block);
1224                         emit_ble(cd, iptr->dst.block);
1225                         break;
1226
1227                 case ICMD_IF_FCMPL_GE:  /* ..., value, value ==> ...                  */
1228                 case ICMD_IF_DCMPL_GE:
1229
1230                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1231                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1232                         M_FCMPU(s1, s2);
1233                         M_BNAN(1);
1234                         emit_bge(cd, iptr->dst.block);
1235                         break;
1236
1237                 case ICMD_IF_FCMPG_LT:  /* ..., value, value ==> ...                  */
1238                 case ICMD_IF_DCMPG_LT:
1239
1240                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1241                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1242                         M_FCMPU(s1, s2);
1243                         M_BNAN(1);
1244                         emit_blt(cd, iptr->dst.block);
1245                         break;
1246
1247                 case ICMD_IF_FCMPG_GT:  /* ..., value, value ==> ...                  */
1248                 case ICMD_IF_DCMPG_GT:
1249
1250                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1251                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1252                         M_FCMPU(s1, s2);
1253                         emit_bnan(cd, iptr->dst.block);
1254                         emit_bgt(cd, iptr->dst.block);
1255                         break;
1256
1257                 case ICMD_IF_FCMPG_LE:  /* ..., value, value ==> ...                  */
1258                 case ICMD_IF_DCMPG_LE:
1259
1260                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1261                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1262                         M_FCMPU(s1, s2);
1263                         M_BNAN(1);
1264                         emit_ble(cd, iptr->dst.block);
1265                         break;
1266
1267                 case ICMD_IF_FCMPG_GE:  /* ..., value, value ==> ...                  */
1268                 case ICMD_IF_DCMPG_GE:
1269
1270                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1271                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1272                         M_FCMPU(s1, s2);
1273                         emit_bnan(cd, iptr->dst.block);
1274                         emit_bge(cd, iptr->dst.block);
1275                         break;
1276
1277
1278                 /* memory operations **************************************************/
1279
1280                 case ICMD_ARRAYLENGTH: /* ..., arrayref  ==> ..., length              */
1281
1282                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1283                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1284                         emit_nullpointer_check(cd, iptr, s1);
1285                         M_ILD(d, s1, OFFSET(java_arrayheader, size));
1286                         emit_store_dst(jd, iptr, d);
1287                         break;
1288
1289                 case ICMD_BALOAD:     /* ..., arrayref, index  ==> ..., value         */
1290
1291                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1292                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1293                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1294                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1295                         M_IADD_IMM(s2, OFFSET(java_bytearray, data[0]), REG_ITMP2);
1296                         /* implicit null-pointer check */
1297                         M_LBZX(d, s1, REG_ITMP2);
1298                         M_BSEXT(d, d);
1299                         emit_store_dst(jd, iptr, d);
1300                         break;
1301
1302                 case ICMD_CALOAD:     /* ..., arrayref, index  ==> ..., value         */
1303
1304                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1305                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1306                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1307                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1308                         M_SLL_IMM(s2, 1, REG_ITMP2);
1309                         M_IADD_IMM(REG_ITMP2, OFFSET(java_chararray, data[0]), REG_ITMP2);
1310                         /* implicit null-pointer check */
1311                         M_LHZX(d, s1, REG_ITMP2);
1312                         emit_store_dst(jd, iptr, d);
1313                         break;
1314
1315                 case ICMD_SALOAD:     /* ..., arrayref, index  ==> ..., value         */
1316
1317                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1318                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1319                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1320                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1321                         M_SLL_IMM(s2, 1, REG_ITMP2);
1322                         M_IADD_IMM(REG_ITMP2, OFFSET(java_shortarray, data[0]), REG_ITMP2);
1323                         /* implicit null-pointer check */
1324                         M_LHAX(d, s1, REG_ITMP2);
1325                         emit_store_dst(jd, iptr, d);
1326                         break;
1327
1328                 case ICMD_IALOAD:     /* ..., arrayref, index  ==> ..., value         */
1329
1330                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1331                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1332                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1333                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1334                         M_SLL_IMM(s2, 2, REG_ITMP2);
1335                         M_IADD_IMM(REG_ITMP2, OFFSET(java_intarray, data[0]), REG_ITMP2);
1336                         /* implicit null-pointer check */
1337                         M_LWAX(d, s1, REG_ITMP2);
1338                         emit_store_dst(jd, iptr, d);
1339                         break;
1340
1341                 case ICMD_LALOAD:     /* ..., arrayref, index  ==> ..., value         */
1342
1343                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1344                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1345                         d = codegen_reg_of_dst(jd, iptr, PACK_REGS(REG_ITMP2, REG_ITMP1));
1346                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1347                         M_SLL_IMM(s2, 3, REG_ITMP2);
1348                         M_IADD(s1, REG_ITMP2, REG_ITMP2);
1349                         /* implicit null-pointer check */
1350                         M_LLD_INTERN(d, REG_ITMP2, OFFSET(java_longarray, data[0]));
1351                         emit_store_dst(jd, iptr, d);
1352                         break;
1353
1354                 case ICMD_FALOAD:     /* ..., arrayref, index  ==> ..., value         */
1355
1356                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1357                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1358                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1359                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1360                         M_SLL_IMM(s2, 2, REG_ITMP2);
1361                         M_IADD_IMM(REG_ITMP2, OFFSET(java_floatarray, data[0]), REG_ITMP2);
1362                         /* implicit null-pointer check */
1363                         M_LFSX(d, s1, REG_ITMP2);
1364                         emit_store_dst(jd, iptr, d);
1365                         break;
1366
1367                 case ICMD_DALOAD:     /* ..., arrayref, index  ==> ..., value         */
1368
1369                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1370                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1371                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1372                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1373                         M_SLL_IMM(s2, 3, REG_ITMP2);
1374                         M_IADD_IMM(REG_ITMP2, OFFSET(java_doublearray, data[0]), REG_ITMP2);
1375                         /* implicit null-pointer check */
1376                         M_LFDX(d, s1, REG_ITMP2);
1377                         emit_store_dst(jd, iptr, d);
1378                         break;
1379
1380                 case ICMD_AALOAD:     /* ..., arrayref, index  ==> ..., value         */
1381
1382                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1383                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1384                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1385                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1386                         M_SLL_IMM(s2, 3, REG_ITMP2);
1387                         M_IADD_IMM(REG_ITMP2, OFFSET(java_objectarray, data[0]), REG_ITMP2);
1388                         /* implicit null-pointer check */
1389                         M_ALDX(d, s1, REG_ITMP2);
1390                         emit_store_dst(jd, iptr, d);
1391                         break;
1392
1393
1394                 case ICMD_BASTORE:    /* ..., arrayref, index, value  ==> ...         */
1395
1396                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1397                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1398                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1399                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1400                         M_IADD_IMM(s2, OFFSET(java_bytearray, data[0]), REG_ITMP2);
1401                         /* implicit null-pointer check */
1402                         M_STBX(s3, s1, REG_ITMP2);
1403                         break;
1404
1405                 case ICMD_CASTORE:    /* ..., arrayref, index, value  ==> ...         */
1406
1407                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1408                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1409                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1410                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1411                         M_SLL_IMM(s2, 1, REG_ITMP2);
1412                         M_IADD_IMM(REG_ITMP2, OFFSET(java_chararray, data[0]), REG_ITMP2);
1413                         /* implicit null-pointer check */
1414                         M_STHX(s3, s1, REG_ITMP2);
1415                         break;
1416
1417                 case ICMD_SASTORE:    /* ..., arrayref, index, value  ==> ...         */
1418
1419                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1420                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1421                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1422                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1423                         M_SLL_IMM(s2, 1, REG_ITMP2);
1424                         M_IADD_IMM(REG_ITMP2, OFFSET(java_shortarray, data[0]), REG_ITMP2);
1425                         M_STHX(s3, s1, REG_ITMP2);
1426                         break;
1427
1428                 case ICMD_IASTORE:    /* ..., arrayref, index, value  ==> ...         */
1429
1430                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1431                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1432                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1433                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1434                         M_SLL_IMM(s2, 2, REG_ITMP2);
1435                         M_IADD_IMM(REG_ITMP2, OFFSET(java_intarray, data[0]), REG_ITMP2);
1436                         /* implicit null-pointer check */
1437                         M_STWX(s3, s1, REG_ITMP2);
1438                         break;
1439
1440                 case ICMD_LASTORE:    /* ..., arrayref, index, value  ==> ...         */
1441
1442                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1443                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1444                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1445                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1446                         M_SLL_IMM(s2, 3, REG_ITMP2);
1447                         M_IADD_IMM(REG_ITMP2, OFFSET(java_longarray, data[0]), REG_ITMP2);
1448                         /* implicit null-pointer check */
1449                         M_LSTX(s3, s1, REG_ITMP2);
1450                         break;
1451
1452                 case ICMD_FASTORE:    /* ..., arrayref, index, value  ==> ...         */
1453
1454                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1455                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1456                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1457                         s3 = emit_load_s3(jd, iptr, REG_FTMP3);
1458                         M_SLL_IMM(s2, 2, REG_ITMP2);
1459                         M_IADD_IMM(REG_ITMP2, OFFSET(java_floatarray, data[0]), REG_ITMP2);
1460                         /* implicit null-pointer check */
1461                         M_STFSX(s3, s1, REG_ITMP2);
1462                         break;
1463
1464                 case ICMD_DASTORE:    /* ..., arrayref, index, value  ==> ...         */
1465
1466                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1467                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1468                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1469                         s3 = emit_load_s3(jd, iptr, REG_FTMP3);
1470                         M_SLL_IMM(s2, 3, REG_ITMP2);
1471                         M_IADD_IMM(REG_ITMP2, OFFSET(java_doublearray, data[0]), REG_ITMP2);
1472                         /* implicit null-pointer check */
1473                         M_STFDX(s3, s1, REG_ITMP2);
1474                         break;
1475
1476                 case ICMD_AASTORE:    /* ..., arrayref, index, value  ==> ...         */
1477
1478                         s1 = emit_load_s1(jd, iptr, REG_A0);
1479                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1480                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1481                         s3 = emit_load_s3(jd, iptr, REG_A1);
1482
1483                         disp = dseg_add_functionptr(cd, BUILTIN_canstore);
1484                         M_ALD(REG_ITMP3, REG_PV, disp);
1485                         M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
1486                         M_MTCTR(REG_ITMP3);
1487
1488                         M_INTMOVE(s1, REG_A0);
1489                         M_INTMOVE(s3, REG_A1);
1490
1491                         M_JSR;
1492                         emit_exception_check(cd, iptr);
1493
1494                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1495                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1496                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1497                         M_SLL_IMM(s2, 3, REG_ITMP2);
1498                         M_IADD_IMM(REG_ITMP2, OFFSET(java_objectarray, data[0]), REG_ITMP2);
1499                         /* implicit null-pointer check */
1500                         M_ASTX(s3, s1, REG_ITMP2);
1501                         break;
1502
1503
1504                 case ICMD_GETSTATIC:  /* ...  ==> ..., value                          */
1505
1506                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1507                                 uf = iptr->sx.s23.s3.uf;
1508
1509                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1510                                 disp = dseg_add_unique_address(cd, NULL);
1511
1512                                 codegen_addpatchref(cd, PATCHER_get_putstatic,
1513                                                                         iptr->sx.s23.s3.uf, disp);
1514
1515                         } else {
1516                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1517
1518                                 fieldtype = fi->type;
1519                                 disp = dseg_add_address(cd, &(fi->value));
1520
1521                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1522                                         codegen_addpatchref(cd, PATCHER_clinit, fi->class, disp);
1523                                 }
1524                         }
1525
1526                         M_ALD(REG_ITMP1, REG_PV, disp);
1527                         switch (fieldtype) {
1528                         case TYPE_INT:
1529                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1530                                 M_ILD_INTERN(d, REG_ITMP1, 0);
1531                                 break;
1532                         case TYPE_LNG:
1533                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1534                                 M_LLD(d, REG_ITMP1, 0);
1535                                 break;
1536                         case TYPE_ADR:
1537                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1538                                 M_ALD_INTERN(d, REG_ITMP1, 0);
1539                                 break;
1540                         case TYPE_FLT:
1541                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1542                                 M_FLD_INTERN(d, REG_ITMP1, 0);
1543                                 break;
1544                         case TYPE_DBL:
1545                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1546                                 M_DLD_INTERN(d, REG_ITMP1, 0);
1547                                 break;
1548                         }
1549                         emit_store_dst(jd, iptr, d);
1550                         break;
1551
1552                 case ICMD_PUTSTATIC:  /* ..., value  ==> ...                          */
1553
1554
1555                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1556                                 uf = iptr->sx.s23.s3.uf;
1557
1558                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1559                                 disp = dseg_add_unique_address(cd, NULL);
1560
1561                                 codegen_addpatchref(cd, PATCHER_get_putstatic,
1562                                                                         iptr->sx.s23.s3.uf, disp);
1563                         } else {
1564                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1565
1566                                 fieldtype = fi->type;
1567                                 disp = dseg_add_address(cd, &(fi->value));
1568
1569                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1570                                         codegen_addpatchref(cd, PATCHER_clinit, fi->class, disp);
1571                                 }
1572                         }
1573
1574                         M_ALD(REG_ITMP1, REG_PV, disp);
1575                         switch (fieldtype) {
1576                         case TYPE_INT:
1577                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1578                                 M_IST_INTERN(s1, REG_ITMP1, 0);
1579                                 break;
1580                         case TYPE_LNG:
1581                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1582                                 M_LST_INTERN(s1, REG_ITMP1, 0);
1583                                 break;
1584                         case TYPE_ADR:
1585                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1586                                 M_AST_INTERN(s1, REG_ITMP1, 0);
1587                                 break;
1588                         case TYPE_FLT:
1589                                 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1590                                 M_FST_INTERN(s1, REG_ITMP1, 0);
1591                                 break;
1592                         case TYPE_DBL:
1593                                 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1594                                 M_DST_INTERN(s1, REG_ITMP1, 0);
1595                                 break;
1596                         }
1597                         break;
1598
1599
1600                 case ICMD_GETFIELD:   /* ...  ==> ..., value                          */
1601
1602                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1603
1604                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1605                                 uf = iptr->sx.s23.s3.uf;
1606                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1607                                 disp = 0;
1608
1609                                 codegen_addpatchref(cd, PATCHER_get_putfield, uf, 0);
1610                         } else {
1611                                 fi = iptr->sx.s23.s3.fmiref->p.field;
1612                                 fieldtype = fi->type;
1613                                 disp = fi->offset;
1614                         }
1615
1616                         /* implicit null-pointer check */
1617                         switch (fieldtype) {
1618                         case TYPE_INT:
1619                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1620                                 M_ILD(d, s1, disp);
1621                                 break;
1622                         case TYPE_LNG:
1623                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1624                                 M_LLD(d, s1, disp);
1625                                 break;
1626                         case TYPE_ADR:
1627                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1628                                 M_ALD(d, s1, disp);
1629                                 break;
1630                         case TYPE_FLT:
1631                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1632                                 M_FLD(d, s1, disp);
1633                                 break;
1634                         case TYPE_DBL:
1635                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1636                                 M_DLD(d, s1, disp);
1637                                 break;
1638                         }
1639                         emit_store_dst(jd, iptr, d);
1640                         break;
1641
1642                 case ICMD_PUTFIELD:   /* ..., value  ==> ...                          */
1643
1644                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1645
1646                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1647                                 uf        = iptr->sx.s23.s3.uf;
1648                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1649                                 disp      = 0;
1650                         }
1651                         else {
1652                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1653                                 fieldtype = fi->type;
1654                                 disp      = fi->offset;
1655                         }
1656
1657                         if (IS_INT_LNG_TYPE(fieldtype)) {
1658                                 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1659                         }
1660                         else
1661                                 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1662
1663                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1664                                 codegen_addpatchref(cd, PATCHER_get_putfield, uf, 0);
1665                         }
1666
1667
1668                         /* implicit null-pointer check */
1669                         switch (fieldtype) {
1670                         case TYPE_INT:
1671                                 M_IST(s2, s1, disp);
1672                                 break;
1673                         case TYPE_LNG:
1674                                 M_LST(s2, s1, disp);
1675                                 break;
1676                         case TYPE_ADR:
1677                                 M_AST(s2, s1, disp);
1678                                 break;
1679                         case TYPE_FLT:
1680                                 M_FST(s2, s1, disp);
1681                                 break;
1682                         case TYPE_DBL:
1683                                 M_DST(s2, s1, disp);
1684                                 break;
1685                         }
1686                         break;
1687
1688
1689                 /* branch operations **************************************************/
1690
1691                 case ICMD_ATHROW:       /* ..., objectref ==> ... (, objectref)       */
1692
1693                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1694                         M_LNGMOVE(s1, REG_ITMP1_XPTR);
1695
1696 #ifdef ENABLE_VERIFIER
1697                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1698                                 codegen_addpatchref(cd, PATCHER_athrow_areturn,
1699                                                                         iptr->sx.s23.s2.uc, 0);
1700                         }
1701 #endif /* ENABLE_VERIFIER */
1702
1703                         disp = dseg_add_functionptr(cd, asm_handle_exception);
1704                         M_ALD(REG_ITMP2, REG_PV, disp);
1705                         M_MTCTR(REG_ITMP2);
1706
1707                         if (jd->isleafmethod) M_MFLR(REG_ITMP3);         /* save LR        */
1708                         M_BL(0);                                        /* get current PC */
1709                         M_MFLR(REG_ITMP2_XPC);
1710                         if (jd->isleafmethod) M_MTLR(REG_ITMP3);         /* restore LR     */
1711                         M_RTS;                                          /* jump to CTR    */
1712
1713                         ALIGNCODENOP;
1714                         break;
1715
1716                 case ICMD_GOTO:         /* ... ==> ...                                */
1717                 case ICMD_RET:          /* ... ==> ...                                */
1718
1719                         emit_br(cd, iptr->dst.block);
1720                         ALIGNCODENOP;
1721                         break;
1722
1723                 case ICMD_JSR:          /* ... ==> ...                                */
1724
1725                         emit_br(cd, iptr->sx.s23.s3.jsrtarget.block);
1726                         ALIGNCODENOP;
1727                         break;
1728
1729                 case ICMD_IFNULL:       /* ..., value ==> ...                         */
1730
1731                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1732                         M_TST(s1);
1733                         emit_beq(cd, iptr->dst.block);
1734                         break;
1735
1736                 case ICMD_IFNONNULL:    /* ..., value ==> ...                         */
1737
1738                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1739                         M_TST(s1);
1740                         emit_bne(cd, iptr->dst.block);
1741                         break;
1742
1743                 case ICMD_IFLT:
1744                 case ICMD_IFLE:
1745                 case ICMD_IFNE:
1746                 case ICMD_IFGT:
1747                 case ICMD_IFGE:
1748                 case ICMD_IFEQ:         /* ..., value ==> ...                         */
1749
1750                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1751                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767))
1752                                 M_CMPI(s1, iptr->sx.val.i);
1753                         else {
1754                                 ICONST(REG_ITMP2, iptr->sx.val.i);
1755                                 M_CMP(s1, REG_ITMP2);
1756                         }
1757                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFEQ, BRANCH_OPT_NONE);
1758                         break;
1759
1760                 case ICMD_IF_LEQ:       /* ..., value ==> ...                         */
1761                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1762                         LCONST(REG_ITMP2, iptr->sx.val.l);
1763                         M_CMP(s1, REG_ITMP2);
1764                         emit_beq(cd, iptr->dst.block);
1765                         break;
1766                 case ICMD_IF_LLT:       /* ..., value ==> ...                         */
1767                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1768                         LCONST(REG_ITMP2, iptr->sx.val.l);
1769                         M_CMP(s1, REG_ITMP2);
1770                         emit_blt(cd, iptr->dst.block);
1771                         break;
1772                 case ICMD_IF_LLE:       /* ..., value ==> ...                         */
1773                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1774                         LCONST(REG_ITMP2, iptr->sx.val.l);
1775                         M_CMP(s1, REG_ITMP2);
1776                         emit_ble(cd, iptr->dst.block);
1777                         break;
1778
1779                 case ICMD_IF_LNE:       /* ..., value ==> ... */
1780                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1781                         LCONST(REG_ITMP2, iptr->sx.val.l);
1782                         M_CMP(s1, REG_ITMP2);
1783                         emit_bne(cd, iptr->dst.block);
1784                         break;
1785                 case ICMD_IF_LGE:       /* ..., value ==> ... */
1786                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1787                         LCONST(REG_ITMP2, iptr->sx.val.l);
1788                         M_CMP(s1, REG_ITMP2);
1789                         emit_bge(cd, iptr->dst.block);
1790                         break;
1791                 case ICMD_IF_LGT:       /* ..., value ==> ...                         */
1792                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1793                         LCONST(REG_ITMP2, iptr->sx.val.l);
1794                         M_CMP(s1, REG_ITMP2);
1795                         emit_bgt(cd, iptr->dst.block);
1796                         break;
1797                 case ICMD_IF_ICMPEQ:    /* ..., value, value ==> ...                  */
1798                 case ICMD_IF_ACMPEQ:    /* op1 = target JavaVM pc                     */
1799                 case ICMD_IF_LCMPEQ:
1800
1801                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1802                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1803                         M_CMP(s1, s2);
1804                         emit_beq(cd, iptr->dst.block);
1805                         break;
1806
1807                 case ICMD_IF_ICMPNE:    /* ..., value, value ==> ...                  */
1808                 case ICMD_IF_ACMPNE:    /* op1 = target JavaVM pc                     */
1809                 case ICMD_IF_LCMPNE:
1810
1811                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1812                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1813                         M_CMP(s1, s2);
1814                         emit_bne(cd, iptr->dst.block);
1815                         break;
1816
1817
1818                 case ICMD_IF_ICMPLT:    /* ..., value, value ==> ...                  */
1819                 case ICMD_IF_LCMPLT:
1820
1821                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1822                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1823                         M_CMP(s1, s2);
1824                         emit_blt(cd, iptr->dst.block);
1825                         break;
1826
1827                 case ICMD_IF_ICMPGT:    /* ..., value, value ==> ...                  */
1828                 case ICMD_IF_LCMPGT:
1829
1830                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1831                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1832                         M_CMP(s1, s2);
1833                         emit_bgt(cd, iptr->dst.block);
1834                         break;
1835
1836                 case ICMD_IF_ICMPLE:    /* ..., value, value ==> ...                  */
1837                 case ICMD_IF_LCMPLE:
1838
1839                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1840                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1841                         M_CMP(s1, s2);
1842                         emit_ble(cd, iptr->dst.block);
1843                         break;
1844
1845                 case ICMD_IF_ICMPGE:    /* ..., value, value ==> ...                  */
1846                 case ICMD_IF_LCMPGE:
1847
1848                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1849                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1850                         M_CMP(s1, s2);
1851                         emit_bge(cd, iptr->dst.block);
1852                         break;
1853
1854
1855                 case ICMD_LRETURN:      /* ..., retvalue ==> ...                      */
1856                 case ICMD_IRETURN:      /* ..., retvalue ==> ...                      */
1857
1858                         REPLACEMENT_POINT_RETURN(cd, iptr);
1859                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
1860                         M_LNGMOVE(s1, REG_RESULT);
1861                         goto nowperformreturn;
1862
1863                 case ICMD_ARETURN:      /* ..., retvalue ==> ...                      */
1864
1865                         REPLACEMENT_POINT_RETURN(cd, iptr);
1866                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
1867                         M_LNGMOVE(s1, REG_RESULT);
1868
1869 #ifdef ENABLE_VERIFIER
1870                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1871                                 codegen_addpatchref(cd, PATCHER_athrow_areturn,
1872                                                                         iptr->sx.s23.s2.uc, 0);
1873                         }
1874 #endif /* ENABLE_VERIFIER */
1875
1876                         goto nowperformreturn;
1877
1878                 case ICMD_FRETURN:      /* ..., retvalue ==> ...                      */
1879                 case ICMD_DRETURN:
1880
1881                         REPLACEMENT_POINT_RETURN(cd, iptr);
1882                         s1 = emit_load_s1(jd, iptr, REG_FRESULT);
1883                         M_FLTMOVE(s1, REG_FRESULT);
1884                         goto nowperformreturn;
1885
1886                 case ICMD_RETURN:      /* ...  ==> ...                                */
1887
1888                         REPLACEMENT_POINT_RETURN(cd, iptr);
1889
1890 nowperformreturn:
1891                         {
1892                         s4 i, p;
1893
1894                         p = cd->stackframesize;
1895
1896                         /* call trace function */
1897
1898 #if !defined(NDEBUG)
1899                         if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
1900                                 emit_verbosecall_exit(jd);
1901                         }
1902 #endif
1903
1904 #if defined(ENABLE_THREADS)
1905                         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
1906                                 disp = dseg_add_functionptr(cd, LOCK_monitor_exit);
1907                                 M_ALD(REG_ITMP3, REG_PV, disp);
1908                                 M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
1909                                 M_MTCTR(REG_ITMP3);
1910
1911                                 /* we need to save the proper return value */
1912
1913                                 switch (iptr->opc) {
1914                                 case ICMD_LRETURN:
1915                                 case ICMD_IRETURN:
1916                                 case ICMD_ARETURN:
1917                                         /* fall through */
1918                                         M_LST(REG_RESULT , REG_SP, rd->memuse * 8 + 8);
1919                                         break;
1920                                 case ICMD_FRETURN:
1921                                         M_FST(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
1922                                         break;
1923                                 case ICMD_DRETURN:
1924                                         M_DST(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
1925                                         break;
1926                                 }
1927
1928                                 M_ALD(rd->argintregs[0], REG_SP, rd->memuse * 8);
1929                                 M_JSR;
1930
1931                                 /* and now restore the proper return value */
1932
1933                                 switch (iptr->opc) {
1934                                 case ICMD_LRETURN:
1935                                 case ICMD_IRETURN:
1936                                 case ICMD_ARETURN:
1937                                         /* fall through */
1938                                         M_LLD(REG_RESULT , REG_SP, rd->memuse * 8 + 8);
1939                                         break;
1940                                 case ICMD_FRETURN:
1941                                         M_FLD(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
1942                                         break;
1943                                 case ICMD_DRETURN:
1944                                         M_DLD(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
1945                                         break;
1946                                 }
1947                         }
1948 #endif
1949
1950                         /* restore return address                                         */
1951
1952                         if (!jd->isleafmethod) {
1953                                 /* ATTENTION: Don't use REG_ZERO (r0) here, as M_ALD
1954                                    may have a displacement overflow. */
1955
1956                                 M_ALD(REG_ITMP1, REG_SP, p * 8 + LA_LR_OFFSET);
1957                                 M_MTLR(REG_ITMP1);
1958                         }
1959
1960                         /* restore saved registers                                        */
1961
1962                         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
1963                                 p--; M_LLD(rd->savintregs[i], REG_SP, p * 8);
1964                         }
1965                         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
1966                                 p--; M_DLD(rd->savfltregs[i], REG_SP, p * 8);
1967                         }
1968
1969                         /* deallocate stack                                               */
1970
1971                         if (cd->stackframesize)
1972                                 M_LDA(REG_SP, REG_SP, cd->stackframesize * 8);
1973
1974                         M_RET;
1975                         ALIGNCODENOP;
1976                         }
1977                         break;
1978
1979
1980                 case ICMD_TABLESWITCH:  /* ..., index ==> ...                         */
1981                         {
1982                         s4 i, l;
1983                         branch_target_t *table;
1984
1985                         table = iptr->dst.table;
1986
1987                         l = iptr->sx.s23.s2.tablelow;
1988                         i = iptr->sx.s23.s3.tablehigh;
1989
1990                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1991                         if (l == 0) {
1992                                 M_INTMOVE(s1, REG_ITMP1);
1993                         } else if (l <= 32768) {
1994                                 M_LDA(REG_ITMP1, s1, -l);
1995                         } else {
1996                                 ICONST(REG_ITMP2, l);
1997                                 M_SUB(s1, REG_ITMP2, REG_ITMP1);
1998                         }
1999
2000                         /* number of targets */
2001                         i = i - l + 1;
2002
2003                         /* range check */
2004
2005                         M_CMPUI(REG_ITMP1, i - 1);
2006                         emit_bgt(cd, table[0].block);
2007
2008                         /* build jump table top down and use address of lowest entry */
2009
2010                         table += i;
2011
2012                         while (--i >= 0) {
2013                                 dseg_add_target(cd, table->block);
2014                                 --table;
2015                         }
2016
2017                         /* length of dataseg after last dseg_add_unique_target is used by load */
2018
2019                         M_SLL_IMM(REG_ITMP1, 3, REG_ITMP1);
2020                         M_IADD(REG_ITMP1, REG_PV, REG_ITMP2);
2021                         M_ALD(REG_ITMP2, REG_ITMP2, -(cd->dseglen));
2022                         M_MTCTR(REG_ITMP2);
2023                         M_RTS;
2024                         ALIGNCODENOP;
2025                         }
2026                         break;
2027
2028
2029                 case ICMD_LOOKUPSWITCH: /* ..., key ==> ...                           */
2030                         {
2031                         s4 i, val;
2032                         lookup_target_t *lookup;
2033
2034                         lookup = iptr->dst.lookup;
2035
2036                         i = iptr->sx.s23.s2.lookupcount;
2037
2038                         MCODECHECK((i<<2)+8);
2039                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2040                         while (--i >= 0) {
2041                                 val = lookup->value;
2042                                 if ((val >= -32768) && (val <= 32767)) {
2043                                         M_CMPI(s1, val);
2044
2045                                 } else {
2046                                         a = dseg_add_s4(cd, val);
2047                                         M_ILD(REG_ITMP2, REG_PV, a);
2048                                         M_CMP(s1, REG_ITMP2);
2049                                 }
2050                                 emit_beq(cd, lookup->target.block);
2051                                 ++lookup;
2052                         }
2053
2054                         emit_br(cd, iptr->sx.s23.s3.lookupdefault.block);
2055
2056                         ALIGNCODENOP;
2057                         break;
2058                         }
2059
2060
2061                 case ICMD_BUILTIN:      /* ..., [arg1, [arg2 ...]] ==> ...            */
2062
2063                         bte = iptr->sx.s23.s3.bte;
2064                         md = bte->md;
2065                         goto gen_method;
2066
2067                 case ICMD_INVOKESTATIC: /* ..., [arg1, [arg2 ...]] ==> ...            */
2068                 case ICMD_INVOKESPECIAL:/* ..., objectref, [arg1, [arg2 ...]] ==> ... */
2069                 case ICMD_INVOKEVIRTUAL:/* op1 = arg count, val.a = method pointer    */
2070                 case ICMD_INVOKEINTERFACE:
2071
2072                         REPLACEMENT_POINT_INVOKE(cd, iptr);
2073
2074                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2075                                 lm = NULL;
2076                                 um = iptr->sx.s23.s3.um;
2077                                 md = um->methodref->parseddesc.md;
2078                         }
2079                         else {
2080                                 lm = iptr->sx.s23.s3.fmiref->p.method;
2081                                 um = NULL;
2082                                 md = lm->parseddesc;
2083                         }
2084
2085 gen_method:
2086                         s3 = md->paramcount;
2087
2088                         MCODECHECK((s3 << 1) + 64);
2089
2090                         /* copy arguments to registers or stack location */
2091
2092                         for (s3 = s3 - 1; s3 >= 0; s3--) {
2093                                 var = VAR(iptr->sx.s23.s2.args[s3]);
2094
2095                                 if (var->flags & PREALLOC)
2096                                         continue;
2097
2098                                 if (IS_INT_LNG_TYPE(var->type)) {
2099                                         if (!md->params[s3].inmemory) {
2100                                                 s1 = rd->argintregs[md->params[s3].regoff];
2101                                                 d = emit_load(jd, iptr, var, s1);
2102                                                 M_LNGMOVE(d, s1);
2103                                         } else {
2104                                                 d = emit_load(jd, iptr, var, REG_ITMP1);
2105                                                 M_LST(d, REG_SP, md->params[s3].regoff * 8);
2106                                         }
2107                                 } else {
2108                                         if (!md->params[s3].inmemory) {
2109                                                 s1 = rd->argfltregs[md->params[s3].regoff];
2110                                                 d = emit_load(jd, iptr, var, s1);
2111                                                 M_FLTMOVE(d, s1);
2112                                         } else {
2113                                                 d = emit_load(jd, iptr, var, REG_FTMP1);
2114                                                 M_DST(d, REG_SP, md->params[s3].regoff * 8);
2115                                         }
2116                                 }
2117                         } /* end of for */
2118
2119                         switch (iptr->opc) {
2120                         case ICMD_BUILTIN:
2121                                 disp = dseg_add_functionptr(cd, bte->fp);
2122                                 M_ALD(REG_PV, REG_PV, disp);
2123                                 M_ALD(REG_PV, REG_PV, 0);       /* TOC */
2124
2125                                 /* generate the actual call */
2126                                 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2127                                 M_MTCTR(REG_PV);
2128                                 M_JSR;
2129                                 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2130                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2131                                 M_MFLR(REG_ITMP1);
2132                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2133
2134                                 emit_exception_check(cd, iptr);
2135                                 break;
2136
2137
2138                         case ICMD_INVOKESPECIAL:
2139                                 emit_nullpointer_check(cd, iptr, REG_A0);
2140                                 /* fall through */
2141
2142                         case ICMD_INVOKESTATIC:
2143                                 if (lm == NULL) {
2144                                         disp = dseg_add_unique_address(cd, um);
2145
2146                                         codegen_addpatchref(cd, PATCHER_invokestatic_special,
2147                                                                                 um, disp);
2148                                 } else {
2149                                         disp = dseg_add_address(cd, lm->stubroutine);
2150                                 }
2151                                 M_ALD(REG_PV, REG_PV, disp);
2152
2153                                 /* generate the actual call */
2154
2155                                 M_MTCTR(REG_PV);
2156                                 M_JSR;
2157                                 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2158                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2159                                 M_MFLR(REG_ITMP1);
2160                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2161
2162                                 break;
2163                         case ICMD_INVOKEVIRTUAL:
2164                                 if (lm == NULL) {
2165                                         codegen_addpatchref(cd, PATCHER_invokevirtual, um, 0);
2166                                         s1 = 0;
2167                                 } else {
2168                                         s1 = OFFSET(vftbl_t, table[0]) +
2169                                                 sizeof(methodptr) * lm->vftblindex;
2170                                 }
2171
2172                                 /* implicit null-pointer check */
2173                                 M_ALD(REG_METHODPTR, REG_A0, OFFSET(java_objectheader, vftbl));
2174                                 M_ALD(REG_PV, REG_METHODPTR, s1);
2175
2176                                 /* generate the actual call */
2177
2178                                 M_MTCTR(REG_PV);
2179                                 M_JSR;
2180                                 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2181                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2182                                 M_MFLR(REG_ITMP1);
2183                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2184                                 break;
2185
2186                         case ICMD_INVOKEINTERFACE:
2187                                 if (lm == NULL) {
2188                                         codegen_addpatchref(cd, PATCHER_invokeinterface, um, 0);
2189
2190                                         s1 = 0;
2191                                         s2 = 0;
2192
2193                                 } else {
2194                                         s1 = OFFSET(vftbl_t, interfacetable[0]) -
2195                                                 sizeof(methodptr*) * lm->class->index;
2196
2197                                         s2 = sizeof(methodptr) * (lm - lm->class->methods);
2198                                 }
2199
2200                                 /* implicit null-pointer check */
2201                                 M_ALD(REG_METHODPTR, REG_A0, OFFSET(java_objectheader, vftbl));
2202                                 M_ALD(REG_METHODPTR, REG_METHODPTR, s1);
2203                                 M_ALD(REG_PV, REG_METHODPTR, s2);
2204
2205                                 /* generate the actual call */
2206
2207                                 M_MTCTR(REG_PV);
2208                                 M_JSR;
2209                                 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2210                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2211                                 M_MFLR(REG_ITMP1);
2212                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2213
2214                                 break;
2215                         }
2216                         /* store return value */
2217
2218                         d = md->returntype.type;
2219
2220                         if (d != TYPE_VOID) {
2221                                 if (IS_INT_LNG_TYPE(d)) {
2222                                         s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2223                                         M_MOV(REG_RESULT, s1);
2224                                 }
2225                                 else {
2226                                         s1 = codegen_reg_of_dst(jd, iptr, REG_FRESULT);
2227                                         M_FLTMOVE(REG_FRESULT, s1);
2228                                 }
2229                                 emit_store_dst(jd, iptr, s1);
2230                         }
2231                         break;
2232
2233                 case ICMD_CHECKCAST:  /* ..., objectref ==> ..., objectref            */
2234                                       /* val.a: (classinfo*) superclass               */
2235
2236                         /*  superclass is an interface:
2237                          *
2238                          *  OK if ((sub == NULL) ||
2239                          *         (sub->vftbl->interfacetablelength > super->index) &&
2240                          *         (sub->vftbl->interfacetable[-super->index] != NULL));
2241                          *
2242                          *  superclass is a class:
2243                          *
2244                          *  OK if ((sub == NULL) || (0
2245                          *         <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2246                          *         super->vftbl->diffvall));
2247                          */
2248
2249                         if (!(iptr->flags.bits & INS_FLAG_ARRAY)) {
2250                                 /* object type cast-check */
2251
2252                                 classinfo *super;
2253                                 s4         superindex;
2254
2255                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2256                                         super = NULL;
2257                                         superindex = 0;
2258                                 } else {
2259                                         super = iptr->sx.s23.s3.c.cls;
2260                                         superindex = super->index;
2261                                 }
2262
2263 #if defined(ENABLE_THREADS)
2264                                 codegen_threadcritrestart(cd, cd->mcodeptr - cd->mcodebase);
2265 #endif
2266                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2267
2268                                 /* calculate interface checkcast code size */
2269
2270                                 s2 = 9;
2271 #if defined(SOFTEX)
2272                                 s2 += CODEGENDATA_HAS_FLAG_LONGBRANCHES(cd) ? 2 : 0;
2273 #endif
2274                                 if (super == NULL)
2275                                         s2 += (opt_shownops ? 1 : 0);
2276
2277                                 /* calculate class checkcast code size */
2278
2279                                 s3 = 10 + (s1 == REG_ITMP1);
2280 #if defined(SOFTEX)
2281                                 s3 += CODEGENDATA_HAS_FLAG_LONGBRANCHES(cd) ? 1 : 0;
2282 #endif
2283                                 if (super == NULL)
2284                                         s3 += (opt_shownops ? 1 : 0);
2285
2286                                 /* if class is not resolved, check which code to call */
2287
2288                                 if (super == NULL) {
2289                                         M_TST(s1);
2290                                         M_BEQ(3 + (opt_shownops ? 1 : 0) + s2 + 1 + s3);
2291
2292                                         disp = dseg_add_unique_s4(cd, 0);                     /* super->flags */
2293
2294                                         codegen_addpatchref(cd,
2295                                                                                 PATCHER_checkcast_instanceof_flags,
2296                                                                                 iptr->sx.s23.s3.c.ref,
2297                                                                                 disp);
2298
2299                                         M_ILD(REG_ITMP2, REG_PV, disp);
2300                                         M_AND_IMM(REG_ITMP2, ACC_INTERFACE, REG_ITMP2);
2301                                         M_BEQ(s2 + 1);
2302                                 }
2303
2304                                 /* interface checkcast code */
2305
2306                                 if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2307                                         if (super == NULL) {
2308                                                 codegen_addpatchref(cd,
2309                                                                                         PATCHER_checkcast_interface,
2310                                                                                         iptr->sx.s23.s3.c.ref,
2311                                                                                         0);
2312                                         } else {
2313                                                 M_TST(s1);
2314                                                 M_BEQ(s2);
2315                                         }
2316
2317                                         M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2318                                         M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, interfacetablelength));
2319                                         M_LDATST(REG_ITMP3, REG_ITMP3, -superindex);
2320                                         emit_classcast_check(cd, iptr, BRANCH_LE, REG_ITMP3, s1);
2321                                         M_ALD(REG_ITMP3, REG_ITMP2,
2322                                                   OFFSET(vftbl_t, interfacetable[0]) -
2323                                                   superindex * sizeof(methodptr*));
2324                                         M_TST(REG_ITMP3);
2325                                         emit_classcast_check(cd, iptr, BRANCH_EQ, REG_ITMP3, s1);
2326
2327                                         if (!super)
2328                                                 M_BR(s3);
2329                                 }
2330
2331                                 /* class checkcast code */
2332
2333                                 if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2334                                         if (super == NULL) {
2335                                                 disp = dseg_add_unique_address(cd, NULL);
2336                                                 codegen_addpatchref(cd, PATCHER_checkcast_class,
2337                                                                                         iptr->sx.s23.s3.c.ref,
2338                                                                                         disp);
2339                                         } else {
2340                                                 disp = dseg_add_address(cd, super->vftbl);
2341                                                 M_TST(s1);
2342                                                 M_BEQ(s3);
2343                                         }
2344
2345                                         M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2346 #if defined(ENABLE_THREADS)
2347                                         codegen_threadcritstart(cd, cd->mcodeptr - cd->mcodebase);
2348 #endif
2349                                         M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2350                                         M_ALD(REG_ITMP2, REG_PV, disp);
2351                                         if (s1 != REG_ITMP1) {
2352                                                 M_ILD(REG_ITMP1, REG_ITMP2, OFFSET(vftbl_t, baseval));
2353                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2354 #if defined(ENABLE_THREADS)
2355                                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2356 #endif
2357                                                 M_SUB(REG_ITMP3, REG_ITMP1, REG_ITMP3);
2358                                                 M_EXTSW(REG_ITMP3, REG_ITMP3);
2359                                         } else {
2360                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, baseval));
2361                                                 M_SUB(REG_ITMP3, REG_ITMP2, REG_ITMP3);
2362                                                 M_EXTSW(REG_ITMP3, REG_ITMP3);
2363                                                 M_ALD(REG_ITMP2, REG_PV, disp);
2364                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2365 #if defined(ENABLE_THREADS)
2366                                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2367 #endif
2368                                         }
2369                                         M_CMPU(REG_ITMP3, REG_ITMP2);
2370                                         emit_classcast_check(cd, iptr, BRANCH_GT, REG_ITMP3, s1);
2371                                 }
2372                                 d = codegen_reg_of_dst(jd, iptr, s1);
2373
2374                         } else {
2375                                 /* array type cast-check */
2376
2377                                 s1 = emit_load_s1(jd, iptr, rd->argintregs[0]);
2378                                 M_INTMOVE(s1, rd->argintregs[0]);
2379
2380
2381                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2382                                         disp = dseg_add_unique_address(cd, NULL);
2383                                         codegen_addpatchref(cd, PATCHER_builtin_arraycheckcast,
2384                                                                                 iptr->sx.s23.s3.c.ref,
2385                                                                                 disp);
2386                                 } else {
2387                                         disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2388                                 }
2389
2390                                 M_ALD(rd->argintregs[1], REG_PV, disp);
2391                                 disp = dseg_add_functionptr(cd, BUILTIN_arraycheckcast);
2392                                 M_ALD(REG_ITMP2, REG_PV, disp);
2393                                 M_ALD(REG_ITMP2, REG_ITMP2, 0); /* TOC */
2394                                 M_MTCTR(REG_ITMP2);
2395                                 M_JSR;
2396                                 M_TST(REG_RESULT);
2397                                 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_RESULT, s1);
2398
2399                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2400                                 d = codegen_reg_of_dst(jd, iptr, s1);
2401                         }
2402                         M_INTMOVE(s1, d);
2403                         emit_store_dst(jd, iptr, d);
2404                         break;
2405
2406
2407                 case ICMD_INSTANCEOF: /* ..., objectref ==> ..., intresult            */
2408                                       /* val.a: (classinfo*) superclass               */
2409
2410                         /*  superclass is an interface:
2411                          *
2412                          *  return (sub != NULL) &&
2413                          *         (sub->vftbl->interfacetablelength > super->index) &&
2414                          *         (sub->vftbl->interfacetable[-super->index] != NULL);
2415                          *
2416                          *  superclass is a class:
2417                          *
2418                          *  return ((sub != NULL) && (0
2419                          *          <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2420                          *          super->vftbl->diffvall));
2421                          */
2422
2423                         {
2424                         classinfo *super;
2425                         vftbl_t   *supervftbl;
2426                         s4         superindex;
2427
2428                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2429                                 super = NULL;
2430                                 superindex = 0;
2431                                 supervftbl = NULL;
2432                         }
2433                         else {
2434                                 super = iptr->sx.s23.s3.c.cls;
2435                                 superindex = super->index;
2436                                 supervftbl = super->vftbl;
2437                         }
2438
2439 #if defined(ENABLE_THREADS)
2440             codegen_threadcritrestart(cd, cd->mcodeptr - cd->mcodebase);
2441 #endif
2442                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2443                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
2444                         if (s1 == d) {
2445                                 M_MOV(s1, REG_ITMP1);
2446                                 s1 = REG_ITMP1;
2447                         }
2448
2449                         /* calculate interface instanceof code size */
2450
2451                         s2 = 8;
2452                         if (!super)
2453                                 s2 += (opt_shownops ? 1 : 0);
2454
2455                         /* calculate class instanceof code size */
2456
2457                         s3 = 11;
2458                         if (super == NULL)
2459                                 s3 += (opt_shownops ? 1 : 0);
2460
2461                         M_CLR(d);
2462
2463                         /* if class is not resolved, check which code to call */
2464
2465                         if (super == NULL) {
2466                                 M_TST(s1);
2467                                 M_BEQ(3 + (opt_shownops ? 1 : 0) + s2 + 1 + s3);
2468
2469                                 disp = dseg_add_unique_s4(cd, 0);                     /* super->flags */
2470
2471                                 codegen_addpatchref(cd, PATCHER_checkcast_instanceof_flags,
2472                                                                         iptr->sx.s23.s3.c.ref, disp);
2473
2474                                 M_ILD(REG_ITMP3, REG_PV, disp);
2475                                 M_AND_IMM(REG_ITMP3, ACC_INTERFACE, REG_ITMP3);
2476                                 M_BEQ(s2 + 1);
2477                         }
2478
2479                         /* interface instanceof code */
2480
2481                         if (!super || (super->flags & ACC_INTERFACE)) {
2482                                 if (super) {
2483                                         M_TST(s1);
2484                                         M_BEQ(s2);
2485
2486                                 } else {
2487                                         codegen_addpatchref(cd,
2488                                                                                 PATCHER_instanceof_interface,
2489                                                                                 iptr->sx.s23.s3.c.ref, 0);
2490                                 }
2491
2492                                 M_ALD(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
2493                                 M_ILD(REG_ITMP3, REG_ITMP1, OFFSET(vftbl_t, interfacetablelength));
2494                                 M_LDATST(REG_ITMP3, REG_ITMP3, -superindex);
2495                                 M_BLE(4);
2496                                 M_ALD(REG_ITMP1, REG_ITMP1,
2497                                           OFFSET(vftbl_t, interfacetable[0]) -
2498                                           superindex * sizeof(methodptr*));
2499                                 M_TST(REG_ITMP1);
2500                                 M_BEQ(1);
2501                                 M_IADD_IMM(REG_ZERO, 1, d);
2502
2503                                 if (super == NULL)
2504                                         M_BR(s3);
2505                         }
2506
2507                         /* class instanceof code */
2508
2509                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2510
2511                                 if (super) {
2512                                         disp = dseg_add_address(cd, supervftbl);
2513                                         M_TST(s1);
2514                                         M_BEQ(s3);
2515
2516                                 } else {
2517                                         disp = dseg_add_unique_address(cd, NULL);
2518                                         codegen_addpatchref(cd, PATCHER_instanceof_class,
2519                                                                                 iptr->sx.s23.s3.c.ref,
2520                                                                                 disp);
2521                                 }
2522
2523                                 M_ALD(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
2524                                 M_ALD(REG_ITMP2, REG_PV, disp);
2525 #if defined(ENABLE_THREADS)
2526                                 codegen_threadcritstart(cd, cd->mcodeptr - cd->mcodebase);
2527 #endif
2528                                 M_ILD(REG_ITMP1, REG_ITMP1, OFFSET(vftbl_t, baseval));
2529                                 M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2530                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2531 #if defined(ENABLE_THREADS)
2532                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2533 #endif
2534                                 M_SUB(REG_ITMP1, REG_ITMP3, REG_ITMP1);
2535                                 M_EXTSW(REG_ITMP1, REG_ITMP1);
2536                                 M_CMPU(REG_ITMP1, REG_ITMP2);
2537                                 M_CLR(d);
2538                                 M_BGT(1);
2539                                 M_IADD_IMM(REG_ZERO, 1, d);
2540                         }
2541                         emit_store_dst(jd, iptr, d);
2542                         }
2543                         break;
2544
2545                 case ICMD_MULTIANEWARRAY:/* ..., cnt1, [cnt2, ...] ==> ..., arrayref  */
2546
2547                         /* check for negative sizes and copy sizes to stack if necessary  */
2548
2549                         MCODECHECK((iptr->s1.argcount << 1) + 64);
2550
2551                         for (s1 = iptr->s1.argcount; --s1 >= 0; ) {
2552
2553                                 var = VAR(iptr->sx.s23.s2.args[s1]);
2554
2555                                 /* copy SAVEDVAR sizes to stack */
2556
2557                                 if (!(var->flags & PREALLOC)) {
2558                                         s2 = emit_load(jd, iptr, var, REG_ITMP1);
2559 #if defined(__DARWIN__)
2560                                         M_LST(s2, REG_SP, LA_SIZE + (s1 + INT_ARG_CNT) * 8);
2561 #else
2562                                         M_LST(s2, REG_SP, LA_SIZE + (s1 + 3) * 8);
2563 #endif
2564                                 }
2565                         }
2566
2567                         /* a0 = dimension count */
2568
2569                         ICONST(rd->argintregs[0], iptr->s1.argcount);
2570
2571                         /* is patcher function set? */
2572
2573                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2574                                 disp = dseg_add_unique_address(cd, NULL);
2575
2576                                 codegen_addpatchref(cd, PATCHER_builtin_multianewarray,
2577                                                                         iptr->sx.s23.s3.c.ref, disp);
2578                         } else {
2579                                 disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2580                         }
2581
2582                         /* a1 = arraydescriptor */
2583
2584                         M_ALD(rd->argintregs[1], REG_PV, disp);
2585
2586                         /* a2 = pointer to dimensions = stack pointer */
2587
2588 #if defined(__DARWIN__)
2589                         M_LDA(rd->argintregs[2], REG_SP, LA_SIZE + INT_ARG_CNT * 8);
2590 #else
2591                         M_LDA(rd->argintregs[2], REG_SP, LA_SIZE + 3 * 8);
2592 #endif
2593
2594                         disp = dseg_add_functionptr(cd, BUILTIN_multianewarray);
2595                         M_ALD(REG_ITMP3, REG_PV, disp);
2596                         M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
2597                         M_MTCTR(REG_ITMP3);
2598                         M_JSR;
2599
2600                         /* check for exception before result assignment */
2601                         emit_exception_check(cd, iptr);
2602
2603                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2604                         M_INTMOVE(REG_RESULT, d);
2605                         emit_store_dst(jd, iptr, d);
2606                         break;
2607
2608                 default:
2609                         exceptions_throw_internalerror("Unknown ICMD %d during code generation",
2610                                                                                    iptr->opc);
2611                         return false;
2612         } /* switch */
2613
2614         } /* for instruction */
2615
2616         } /* if (bptr -> flags >= BBREACHED) */
2617         } /* for basic block */
2618
2619         dseg_createlinenumbertable(cd);
2620
2621         /* generate stubs */
2622
2623         emit_patcher_stubs(jd);
2624         REPLACEMENT_EMIT_STUBS(jd);
2625
2626         /* everything's ok */
2627
2628         return true;
2629 }
2630
2631
2632 /* codegen_emit_stub_compiler **************************************************
2633
2634    Emits a stub routine which calls the compiler.
2635
2636 *******************************************************************************/
2637
2638 void codegen_emit_stub_compiler(jitdata *jd)
2639 {
2640         methodinfo  *m;
2641         codegendata *cd;
2642
2643         /* get required compiler data */
2644
2645         m  = jd->m;
2646         cd = jd->cd;
2647
2648         /* code for the stub */
2649
2650         M_ALD_INTERN(REG_ITMP1, REG_PV, -2 * SIZEOF_VOID_P);
2651         M_ALD_INTERN(REG_PV, REG_PV, -3 * SIZEOF_VOID_P);
2652         M_MTCTR(REG_PV);
2653         M_RTS;
2654 }
2655
2656
2657 /* codegen_emit_stub_native ****************************************************
2658
2659    Emits a stub routine which calls a native method.
2660
2661 *******************************************************************************/
2662
2663 void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f)
2664 {
2665         methodinfo   *m;
2666         codeinfo     *code;
2667         codegendata  *cd;
2668         registerdata *rd;
2669         methoddesc   *md;
2670         s4            nativeparams;
2671         s4            i, j;                 /* count variables                    */
2672         s4            t;
2673         s4            s1, s2, disp;
2674         s4            funcdisp;
2675
2676         /* get required compiler data */
2677
2678         m    = jd->m;
2679         code = jd->code;
2680         cd   = jd->cd;
2681         rd   = jd->rd;
2682
2683         /* set some variables */
2684
2685         md = m->parseddesc;
2686         nativeparams = (m->flags & ACC_STATIC) ? 2 : 1;
2687
2688         /* calculate stackframe size */
2689
2690         cd->stackframesize =
2691                 sizeof(stackframeinfo) / SIZEOF_VOID_P +
2692                 sizeof(localref_table) / SIZEOF_VOID_P +
2693                 4 +                            /* 4 stackframeinfo arguments (darwin)*/
2694                 nmd->paramcount  +
2695                 nmd->memuse;
2696
2697 /*      cd->stackframesize = (cd->stackframesize + 3) & ~3;*/ /* keep stack 16-byte aligned */
2698
2699         /* create method header */
2700
2701         (void) dseg_add_unique_address(cd, code);                      /* CodeinfoPointer */
2702         (void) dseg_add_unique_s4(cd, cd->stackframesize * 8);             /* FrameSize       */
2703         (void) dseg_add_unique_s4(cd, 0);                              /* IsSync          */
2704         (void) dseg_add_unique_s4(cd, 0);                              /* IsLeaf          */
2705         (void) dseg_add_unique_s4(cd, 0);                              /* IntSave         */
2706         (void) dseg_add_unique_s4(cd, 0);                              /* FltSave         */
2707         (void) dseg_addlinenumbertablesize(cd);
2708         (void) dseg_add_unique_s4(cd, 0);                              /* ExTableSize     */
2709
2710         /* generate code */
2711
2712         M_MFLR(REG_ZERO);
2713         M_AST_INTERN(REG_ZERO, REG_SP, LA_LR_OFFSET);
2714         M_STDU(REG_SP, REG_SP, -(cd->stackframesize * 8));
2715
2716 #if !defined(NDEBUG)
2717         if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
2718                 emit_verbosecall_enter(jd);
2719         }
2720 #endif
2721         /* get function address (this must happen before the stackframeinfo) */
2722
2723         funcdisp = dseg_add_functionptr(cd, f);
2724
2725 #if !defined(WITH_STATIC_CLASSPATH)
2726         if (f == NULL) {
2727                 codegen_addpatchref(cd, PATCHER_resolve_native, m, funcdisp);
2728         }
2729 #endif
2730
2731         /* save integer and float argument registers */
2732
2733         j = 0;
2734
2735         for (i = 0; i < md->paramcount; i++) {
2736                 t = md->paramtypes[i].type;
2737
2738                 if (IS_INT_LNG_TYPE(t)) {
2739                         if (!md->params[i].inmemory) {
2740                                 s1 = md->params[i].regoff;
2741                                 M_LST(rd->argintregs[s1], REG_SP, LA_SIZE + PA_SIZE + 4*8 + j * 8);
2742                                 j++;
2743                         }
2744                 }
2745         }
2746
2747         for (i = 0; i < md->paramcount; i++) {
2748                 if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
2749                         if (!md->params[i].inmemory) {
2750                                 s1 = md->params[i].regoff;
2751                                 M_DST(rd->argfltregs[s1], REG_SP, LA_SIZE + PA_SIZE + 4*8 + j * 8);
2752                                 j++;
2753                         }
2754                 }
2755         }
2756
2757         /* create native stack info */
2758
2759         M_AADD_IMM(REG_SP, cd->stackframesize * 8, rd->argintregs[0]);
2760         M_MOV(REG_PV, rd->argintregs[1]);
2761         M_AADD_IMM(REG_SP, cd->stackframesize * 8, rd->argintregs[2]);
2762         M_ALD(rd->argintregs[3], REG_SP, cd->stackframesize * 8 + LA_LR_OFFSET);
2763         disp = dseg_add_functionptr(cd, codegen_start_native_call);
2764
2765         M_ALD(REG_ITMP1, REG_PV, disp);
2766         M_ALD(REG_ITMP1, REG_ITMP1, 0);         /* TOC */
2767         M_MTCTR(REG_ITMP1);
2768         M_JSR;
2769
2770         /* restore integer and float argument registers */
2771
2772         j = 0;
2773
2774         for (i = 0; i < md->paramcount; i++) {
2775                 t = md->paramtypes[i].type;
2776
2777                 if (IS_INT_LNG_TYPE(t)) {
2778                         if (!md->params[i].inmemory) {
2779                                 s1 = md->params[i].regoff;
2780                                 M_LLD(rd->argintregs[s1], REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + j * 8);
2781                                 j++;
2782                         }
2783                 }
2784         }
2785
2786         for (i = 0; i < md->paramcount; i++) {
2787                 if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
2788                         if (!md->params[i].inmemory) {
2789                                 s1 = md->params[i].regoff;
2790                                 M_DLD(rd->argfltregs[s1], REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + j * 8);
2791                                 j++;
2792                         }
2793                 }
2794         }
2795
2796         /* copy or spill arguments to new locations */
2797
2798         for (i = md->paramcount - 1, j = i + nativeparams; i >= 0; i--, j--) {
2799                 t = md->paramtypes[i].type;
2800
2801                 if (IS_INT_LNG_TYPE(t)) {
2802                         if (!md->params[i].inmemory) {
2803                                 s1 = rd->argintregs[md->params[i].regoff];
2804
2805                                 if (!nmd->params[j].inmemory) {
2806                                         s2 = rd->argintregs[nmd->params[j].regoff];
2807                                         M_INTMOVE(s1, s2);
2808                                 } else {
2809                                         s2 = nmd->params[j].regoff;
2810                                         M_LST(s1, REG_SP, s2 * 8);
2811                                 }
2812
2813                         } else {
2814                                 s1 = md->params[i].regoff + cd->stackframesize;
2815                                 s2 = nmd->params[j].regoff;
2816
2817                                 M_LLD(REG_ITMP1, REG_SP, s1 * 8);
2818                                 M_LST(REG_ITMP1, REG_SP, s2 * 8);
2819                         }
2820
2821                 } else {
2822                         /* We only copy spilled float arguments, as the float
2823                            argument registers keep unchanged. */
2824
2825                         if (md->params[i].inmemory) {
2826                                 s1 = md->params[i].regoff + cd->stackframesize;
2827                                 s2 = nmd->params[j].regoff;
2828
2829                                 M_DLD(REG_FTMP1, REG_SP, s1 * 8);
2830
2831                                 if (IS_2_WORD_TYPE(t)) {
2832                                         M_DST(REG_FTMP1, REG_SP, s2 * 8);
2833                                 } else {
2834                                         M_FST(REG_FTMP1, REG_SP, s2 * 8 + 4);
2835                                 }
2836                         }
2837                 }
2838         }
2839
2840         /* put class into second argument register */
2841
2842         if (m->flags & ACC_STATIC) {
2843                 disp = dseg_add_unique_address(cd, m->class);
2844                 M_ALD(rd->argintregs[1], REG_PV, disp);
2845         }
2846
2847         /* put env into first argument register */
2848
2849         disp = dseg_add_unique_address(cd, _Jv_env);
2850         M_ALD(rd->argintregs[0], REG_PV, disp);
2851
2852         /* generate the actual native call */
2853         /* native functions have a different TOC for sure */
2854
2855         M_AST(REG_TOC, REG_SP, 40);     /* save old TOC */
2856         M_ALD(REG_ITMP3, REG_PV, funcdisp);
2857         M_ALD(REG_TOC, REG_ITMP3, 8);   /* load TOC from func. descriptor */
2858         M_ALD(REG_ITMP3, REG_ITMP3, 0);
2859         M_MTCTR(REG_ITMP3);
2860         M_JSR;
2861         M_ALD(REG_TOC, REG_SP, 40);     /* restore TOC */
2862
2863         /* save return value */
2864
2865         if (md->returntype.type != TYPE_VOID) {
2866                 if (IS_INT_LNG_TYPE(md->returntype.type)) {
2867                         M_LST(REG_RESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
2868                 }
2869                 else {
2870                         M_DST(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
2871                 }
2872         }
2873
2874         /* print call trace */
2875 #if ! defined(NDEBGUU)
2876         if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
2877                 emit_verbosecall_exit(jd);
2878         }
2879 #endif
2880         /* remove native stackframe info */
2881
2882         M_AADD_IMM(REG_SP, cd->stackframesize * 8, rd->argintregs[0]);
2883         disp = dseg_add_functionptr(cd, codegen_finish_native_call);
2884         M_ALD(REG_ITMP1, REG_PV, disp);
2885         M_ALD(REG_ITMP1, REG_ITMP1, 0); /* XXX what about TOC? */
2886         M_MTCTR(REG_ITMP1);
2887         M_JSR;
2888         M_MOV(REG_RESULT, REG_ITMP1_XPTR);
2889
2890         /* restore return value */
2891
2892         if (md->returntype.type != TYPE_VOID) {
2893                 if (IS_INT_LNG_TYPE(md->returntype.type)) {
2894                         M_LLD(REG_RESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
2895                 }
2896                 else {
2897 /*                      if (IS_2_WORD_TYPE(md->returntype.type)) */
2898                                 M_DLD(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
2899 /*                      else
2900                                 M_FLD(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8); F XXX
2901                                 */
2902                 }
2903         }
2904
2905         M_ALD(REG_ITMP2_XPC, REG_SP, cd->stackframesize * 8 + LA_LR_OFFSET);
2906         M_MTLR(REG_ITMP2_XPC);
2907         M_LDA(REG_SP, REG_SP, cd->stackframesize * 8); /* remove stackframe           */
2908
2909         /* check for exception */
2910
2911         M_TST(REG_ITMP1_XPTR);
2912         M_BNE(1);                           /* if no exception then return        */
2913
2914         M_RET;
2915
2916         /* handle exception */
2917
2918         M_LADD_IMM(REG_ITMP2_XPC, -4, REG_ITMP2_XPC);  /* exception address       */
2919
2920         disp = dseg_add_functionptr(cd, asm_handle_nat_exception);
2921         M_ALD(REG_ITMP3, REG_PV, disp);
2922         M_MTCTR(REG_ITMP3);
2923         M_RTS;
2924
2925         /* generate patcher stub call code */
2926
2927         {
2928                 patchref *pref;
2929                 u4        mcode;
2930                 u1       *savedmcodeptr;
2931                 u1       *tmpmcodeptr;
2932
2933                 for (pref = cd->patchrefs; pref != NULL; pref = pref->next) {
2934                         /* Get machine code which is patched back in later. The
2935                            call is 1 instruction word long. */
2936
2937                         tmpmcodeptr = cd->mcodebase + pref->branchpos;
2938
2939                         mcode = *((u4 *) tmpmcodeptr);
2940
2941                         /* Patch in the call to call the following code (done at
2942                            compile time). */
2943
2944                         savedmcodeptr = cd->mcodeptr;   /* save current mcodeptr          */
2945                         cd->mcodeptr  = tmpmcodeptr;    /* set mcodeptr to patch position */
2946
2947                         disp = ((u4 *) savedmcodeptr) - (((u4 *) tmpmcodeptr) + 1);
2948                         M_BL(disp);
2949
2950                         cd->mcodeptr = savedmcodeptr;   /* restore the current mcodeptr   */
2951
2952                         /* create stack frame - keep stack 16-byte aligned */
2953
2954                         M_AADD_IMM(REG_SP, -8 * 8, REG_SP);
2955
2956                         /* move return address onto stack */
2957
2958                         M_MFLR(REG_ZERO);
2959                         M_AST(REG_ZERO, REG_SP, 5 * 8);
2960
2961                         /* move pointer to java_objectheader onto stack */
2962
2963 #if defined(ENABLE_THREADS)
2964                         /* order reversed because of data segment layout */
2965
2966                         (void) dseg_add_unique_address(cd, NULL);                         /* flcword    */
2967                         (void) dseg_add_unique_address(cd, lock_get_initial_lock_word()); /* monitorPtr */
2968                         disp = dseg_add_unique_address(cd, NULL);                         /* vftbl      */
2969
2970                         M_LDA(REG_ITMP3, REG_PV, disp);
2971                         M_AST(REG_ITMP3, REG_SP, 4 * 8);
2972 #else
2973                         /* do nothing */
2974 #endif
2975
2976                         /* move machine code onto stack */
2977
2978                         disp = dseg_add_unique_s4(cd, mcode);
2979                         M_ILD(REG_ITMP3, REG_PV, disp);
2980                         M_IST(REG_ITMP3, REG_SP, 3 * 8);
2981
2982                         /* move class/method/field reference onto stack */
2983
2984                         disp = dseg_add_unique_address(cd, pref->ref);
2985                         M_ALD(REG_ITMP3, REG_PV, disp);
2986                         M_AST(REG_ITMP3, REG_SP, 2 * 8);
2987
2988                         /* move data segment displacement onto stack */
2989
2990                         disp = dseg_add_unique_s4(cd, pref->disp);
2991                         M_ILD(REG_ITMP3, REG_PV, disp);
2992                         M_IST(REG_ITMP3, REG_SP, 1 * 8);
2993
2994                         /* move patcher function pointer onto stack */
2995
2996                         disp = dseg_add_functionptr(cd, pref->patcher);
2997                         M_ALD(REG_ITMP3, REG_PV, disp);
2998                         M_AST(REG_ITMP3, REG_SP, 0 * 8);
2999
3000                         disp = dseg_add_functionptr(cd, asm_patcher_wrapper);
3001                         M_ALD(REG_ITMP3, REG_PV, disp);
3002                         M_MTCTR(REG_ITMP3);
3003                         M_RTS;
3004                 }
3005         }
3006 }
3007
3008
3009
3010
3011 /*
3012  * These are local overrides for various environment variables in Emacs.
3013  * Please do not remove this and leave it at the end of the file, where
3014  * Emacs will automagically detect them.
3015  * ---------------------------------------------------------------------
3016  * Local variables:
3017  * mode: c
3018  * indent-tabs-mode: t
3019  * c-basic-offset: 4
3020  * tab-width: 4
3021  * End:
3022  * vim:noexpandtab:sw=4:ts=4:
3023  */