src/vm/jit/sparc64/codegen.c

   1 /* src/vm/jit/sparc64/codegen.c - machine code generator for Sparc
   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 4644 2006-03-16 18:44:46Z edwin $
  26
  27 */
  28
  29
  30 #include "config.h"
  31
  32 #include <assert.h>
  33 #include <stdio.h>
  34
  35 #include "vm/types.h"
  36
  37 #include "md-abi.h"
  38
  39 /* #include "vm/jit/sparc64/arch.h" */
  40 #include "vm/jit/sparc64/codegen.h"
  41
  42 #include "mm/memory.h"
  43
  44 #include "native/jni.h"
  45 #include "native/native.h"
  46 #include "vm/builtin.h"
  47 #include "vm/exceptions.h"
  48 #include "vm/global.h"
  49
  50 #include "vm/jit/asmpart.h"
  51 #include "vm/jit/codegen-common.h"
  52 #include "vm/jit/dseg.h"
  53 #include "vm/jit/emit-common.h"
  54 #include "vm/jit/sparc64/emit.h"
  55 #include "vm/jit/jit.h"
  56 #include "vm/jit/parse.h"
  57 #include "vm/jit/patcher.h"
  58 #include "vm/jit/reg.h"
  59 #include "vm/jit/replace.h"
  60 #include "vm/jit/stacktrace.h"
  61 #include "vmcore/loader.h"
  62 #include "vmcore/options.h"
  63
  64 /* XXX use something like this for window control ?
  65  * #define REG_PV (own_window?REG_PV_CALLEE:REG_PV_CALLER)
  66  */
  67 #define REG_PV REG_PV_CALLEE
  68
  69 bool fits_13(s4 disp)
  70 {
  71         /*
  72         if ((disp < -4096) || (disp > 4095))
  73                 printf("disp %d\n", disp);
  74         */
  75
  76         return (disp >= -4096) && (disp <= 4095);
  77 }
  78
  79 s4 get_lopart_disp(disp)
  80 {
  81         s4 lodisp;
  82
  83         if (disp > 0)
  84                 lodisp = setlo_part(disp);
  85         else {
  86                 if (setlo_part(disp) == 0)
  87                         lodisp = 0;
  88                 else
  89                         lodisp = setlo_part(disp) | 0x1c00;
  90         }
  91
  92         return lodisp;
  93 }
  94
  95
  96 /* codegen_emit ****************************************************************
  97
  98    Generates machine code.
  99
 100 *******************************************************************************/
 101
 102 bool codegen_emit(jitdata *jd)
 103 {
 104         methodinfo         *m;
 105         codeinfo           *code;
 106         codegendata        *cd;
 107         registerdata       *rd;
 108         s4                  len, s1, s2, s3, d, disp;
 109         varinfo            *var;
 110         basicblock         *bptr;
 111         instruction        *iptr;
 112         exception_entry    *ex;
 113         u2                  currentline;
 114         constant_classref  *cr;
 115         methodinfo         *lm;             /* local methodinfo for ICMD_INVOKE*  */
 116         unresolved_method  *um;
 117         builtintable_entry *bte;
 118         methoddesc         *md;
 119         fieldinfo          *fi;
 120         unresolved_field   *uf;
 121         s4                  fieldtype;
 122         s4                  varindex;
 123
 124         /* get required compiler data */
 125
 126         m  = jd->m;
 127         code = jd->code;
 128         cd = jd->cd;
 129         rd = jd->rd;
 130
 131         /* prevent compiler warnings */
 132
 133         d = 0;
 134         currentline = 0;
 135         lm = NULL;
 136         bte = NULL;
 137
 138         {
 139         s4 i, p, t, l;
 140         s4 savedregs_num, localbase;
 141
 142 #if 0 /* no leaf optimization yet */
 143         savedregs_num = (jd->isleafmethod) ? 0 : 1;       /* space to save the RA */
 144 #endif
 145         savedregs_num = WINSAVE_CNT + ABIPARAMS_CNT; /* register-window save area */
 146
 147
 148         /* space to save used callee saved registers */
 149
 150         savedregs_num += (INT_SAV_CNT - rd->savintreguse);
 151         savedregs_num += (FLT_SAV_CNT - rd->savfltreguse);
 152
 153         cd->stackframesize = rd->memuse + savedregs_num;
 154
 155 #if defined(ENABLE_THREADS)        /* space to save argument of monitor_enter */
 156         if (checksync && (m->flags & ACC_SYNCHRONIZED))
 157                 cd->stackframesize++;
 158 #endif
 159
 160         /* keep stack 16-byte aligned (ABI requirement) */
 161
 162         if (cd->stackframesize & 1)
 163                 cd->stackframesize++;
 164
 165         /* create method header */
 166
 167         (void) dseg_add_unique_address(cd, code);              /* CodeinfoPointer */
 168         (void) dseg_add_unique_s4(cd, cd->stackframesize * 8); /* FrameSize       */
 169
 170 #if defined(ENABLE_THREADS)
 171         /* IsSync contains the offset relative to the stack pointer for the
 172            argument of monitor_exit used in the exception handler. Since the
 173            offset could be zero and give a wrong meaning of the flag it is
 174            offset by one.
 175         */
 176
 177         if (checksync && (m->flags & ACC_SYNCHRONIZED))
 178                 (void) dseg_add_unique_s4(cd, (rd->memuse + 1) * 8); /* IsSync        */
 179         else
 180 #endif
 181                 (void) dseg_add_unique_s4(cd, 0);                  /* IsSync          */
 182
 183         (void) dseg_add_unique_s4(cd, jd->isleafmethod);       /* IsLeaf          */
 184         (void) dseg_add_unique_s4(cd, INT_SAV_CNT - rd->savintreguse); /* IntSave */
 185         (void) dseg_add_unique_s4(cd, FLT_SAV_CNT - rd->savfltreguse); /* FltSave */
 186         dseg_addlinenumbertablesize(cd);
 187         (void) dseg_add_unique_s4(cd, jd->exceptiontablelength); /* ExTableSize   */
 188
 189         /* create exception table */
 190
 191         for (ex = jd->exceptiontable; ex != NULL; ex = ex->down) {
 192                 dseg_add_target(cd, ex->start);
 193                 dseg_add_target(cd, ex->end);
 194                 dseg_add_target(cd, ex->handler);
 195                 (void) dseg_add_unique_address(cd, ex->catchtype.any);
 196         }
 197
 198         /* save register window and create stack frame (if necessary) */
 199
 200         if (cd->stackframesize)
 201                 M_SAVE(REG_SP, -cd->stackframesize * 8, REG_SP);
 202
 203
 204         /* save callee saved float registers (none right now) */
 205 #if 0
 206         p = cd->stackframesize;
 207         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
 208                 p--; M_DST(rd->savfltregs[i], REG_SP, USESTACK + (p * 8));
 209         }
 210 #endif
 211
 212 #if !defined(NDEBUG)
 213         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
 214                 emit_verbosecall_enter(jd);
 215 #endif
 216
 217
 218
 219         /* take arguments out of register or stack frame */
 220
 221         md = m->parseddesc;
 222
 223         /* when storing locals, use this as base */
 224         localbase = JITSTACK;
 225
 226         /* since the register allocator does not know about the shifting window
 227          * arg regs need to be copied via the stack
 228          */
 229         if (md->argintreguse > 0) {
 230                 /* allocate scratch space for copying in to save(i&l) regs */
 231                 M_SUB_IMM(REG_SP, INT_ARG_CNT * 8, REG_SP);
 232
 233                 localbase += INT_ARG_CNT * 8;
 234
 235                 /* XXX could use the param slots on the stack for this! */
 236                 for (p = 0; p < INT_ARG_CNT; p++)
 237                         M_STX(REG_WINDOW_TRANSPOSE(rd->argintregs[p]), REG_SP, JITSTACK + (p * 8));
 238         }
 239
 240
 241         for (p = 0, l = 0; p < md->paramcount; p++) {
 242                 t = md->paramtypes[p].type;
 243
 244                 varindex = jd->local_map[l * 5 + t];
 245
 246                 l++;
 247                 if (IS_2_WORD_TYPE(t))    /* increment local counter for 2 word types */
 248                         l++;
 249
 250                 if (varindex == UNUSED)
 251                         continue;
 252
 253                 var = VAR(varindex);
 254
 255                 s1 = md->params[p].regoff;
 256                 if (IS_INT_LNG_TYPE(t)) {                    /* integer args          */
 257                         if (!md->params[p].inmemory) {           /* register arguments    */
 258                                 /*s2 = rd->argintregs[s1];*/
 259                                 /*s2 = REG_WINDOW_TRANSPOSE(s2);*/
 260                                 if (!(var->flags & INMEMORY)) {      /* reg arg -> register   */
 261                                         /*M_INTMOVE(s2, var->vv.regoff);*/
 262                                         M_LDX(var->vv.regoff, REG_SP, JITSTACK + (s1 * 8));
 263
 264                                 } else {                             /* reg arg -> spilled    */
 265                                         /*M_STX(s2, REG_SP, (WINSAVE_CNT + var->vv.regoff) * 8);*/
 266
 267                                         M_LDX(REG_ITMP1, REG_SP, JITSTACK + (s1 * 8));
 268                                         M_STX(REG_ITMP1, REG_SP, localbase + (var->vv.regoff * 8));
 269                                 }
 270
 271                         } else {                                 /* stack arguments       */
 272                                 if (!(var->flags & INMEMORY)) {      /* stack arg -> register */
 273                                         M_LDX(var->vv.regoff, REG_FP, JITSTACK + (s1 * 8));
 274
 275                                 } else {                             /* stack arg -> spilled  */
 276                                         /* add the callers window save registers */
 277                                         var->vv.regoff = cd->stackframesize + s1;
 278                                 }
 279                         }
 280
 281                 } else {                                     /* floating args         */
 282                         if (!md->params[p].inmemory) {           /* register arguments    */
 283                                 s2 = rd->argfltregs[s1];
 284                                 if (!(var->flags & INMEMORY)) {      /* reg arg -> register   */
 285                                         M_FLTMOVE(s2, var->vv.regoff);
 286
 287                                 } else {                                         /* reg arg -> spilled    */
 288                                         M_DST(s2, REG_SP, localbase + (var->vv.regoff) * 8);
 289                                 }
 290
 291                         } else {                                 /* stack arguments       */
 292                                 if (!(var->flags & INMEMORY)) {      /* stack-arg -> register */
 293                                         M_DLD(var->vv.regoff, REG_FP, JITSTACK + (s1 * 8));
 294
 295                                 } else {                             /* stack-arg -> spilled  */
 296                                         var->vv.regoff = cd->stackframesize + s1;
 297                                 }
 298                         }
 299                 }
 300         } /* end for */
 301
 302         if (md->argintreguse > 0) {
 303                 /* release scratch space */
 304                 M_ADD_IMM(REG_SP, INT_ARG_CNT * 8, REG_SP);
 305         }
 306
 307
 308         /* XXX monitor enter */
 309
 310
 311
 312
 313         }
 314
 315         /* end of header generation */
 316
 317         /* create replacement points */
 318
 319         REPLACEMENT_POINTS_INIT(cd, jd);
 320
 321         /* walk through all basic blocks */
 322
 323         for (bptr = jd->basicblocks; bptr != NULL; bptr = bptr->next) {
 324
 325                 bptr->mpc = (s4) (cd->mcodeptr - cd->mcodebase);
 326
 327                 if (bptr->flags >= BBREACHED) {
 328
 329                 /* branch resolving */
 330
 331                 codegen_resolve_branchrefs(cd, bptr);
 332
 333                 /* handle replacement points */
 334
 335 #if 0
 336                 if (bptr->bitflags & BBFLAG_REPLACEMENT) {
 337                         replacementpoint->pc = (u1*)(ptrint)bptr->mpc; /* will be resolved later */
 338
 339                         replacementpoint++;
 340                 }
 341 #endif
 342
 343                 /* copy interface registers to their destination */
 344
 345                 len = bptr->indepth;
 346                 MCODECHECK(64+len);
 347
 348 #if defined(ENABLE_LSRA)
 349 #error XXX LSRA not tested yet
 350                 if (opt_lsra) {
 351                 while (len) {
 352                         len--;
 353                         src = bptr->invars[len];
 354                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 355                                         /*                              d = reg_of_var(m, src, REG_ITMP1); */
 356                                         if (!(src->flags & INMEMORY))
 357                                                 d = src->vv.regoff;
 358                                         else
 359                                                 d = REG_ITMP1;
 360                                         M_INTMOVE(REG_ITMP1, d);
 361                                         emit_store(jd, NULL, src, d);
 362                                 }
 363                         }
 364                 } else {
 365 #endif
 366                 while (len) {
 367                         len--;
 368                         var = VAR(bptr->invars[len]);
 369                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 370                                 d = codegen_reg_of_var(0, var, REG_ITMP1);
 371                                 M_INTMOVE(REG_ITMP2_XPTR, d);
 372                                 emit_store(jd, NULL, var, d);
 373                         }
 374                         else {
 375                                 assert((var->flags & INOUT));
 376                         }
 377                 }
 378 #if defined(ENABLE_LSRA)
 379                 }
 380 #endif
 381                 /* walk through all instructions */
 382
 383                 len = bptr->icount;
 384
 385                 for (iptr = bptr->iinstr; len > 0; len--, iptr++) {
 386                         if (iptr->line != currentline) {
 387                                 dseg_addlinenumber(cd, iptr->line);
 388                                 currentline = iptr->line;
 389                         }
 390
 391                 MCODECHECK(64);       /* an instruction usually needs < 64 words      */
 392
 393                 switch (iptr->opc) {
 394
 395                 case ICMD_INLINE_START:
 396                 case ICMD_INLINE_END:
 397                         break;
 398
 399                 case ICMD_NOP:        /* ...  ==> ...                                 */
 400                         break;
 401
 402                 case ICMD_CHECKNULL:  /* ..., objectref  ==> ..., objectref           */
 403
 404                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 405                         emit_nullpointer_check(cd, iptr, s1);
 406                         break;
 407
 408                 /* constant operations ************************************************/
 409
 410                 case ICMD_ICONST:     /* ...  ==> ..., constant                       */
 411
 412                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 413                         ICONST(d, iptr->sx.val.i);
 414                         emit_store_dst(jd, iptr, d);
 415                         break;
 416
 417                 case ICMD_LCONST:     /* ...  ==> ..., constant                       */
 418
 419                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 420                         LCONST(d, iptr->sx.val.l);
 421                         emit_store_dst(jd, iptr, d);
 422                         break;
 423
 424                 case ICMD_FCONST:     /* ...  ==> ..., constant                       */
 425
 426                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 427                         disp = dseg_add_float(cd, iptr->sx.val.f);
 428                         M_FLD(d, REG_PV, disp);
 429                         emit_store_dst(jd, iptr, d);
 430                         break;
 431
 432                 case ICMD_DCONST:     /* ...  ==> ..., constant                       */
 433
 434                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 435                         disp = dseg_add_double(cd, iptr->sx.val.d);
 436                         M_DLD(d, REG_PV, disp);
 437                         emit_store_dst(jd, iptr, d);
 438                         break;
 439
 440                 case ICMD_ACONST:     /* ...  ==> ..., constant                       */
 441
 442                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 443
 444                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
 445                                 cr   = iptr->sx.val.c.ref;
 446                                 disp = dseg_add_unique_address(cd, cr);
 447
 448                                 codegen_add_patch_ref(cd, PATCHER_aconst, cr, disp);
 449
 450                                 M_ALD(d, REG_PV, disp);
 451
 452                         }
 453                         else {
 454                                 if (iptr->sx.val.anyptr == NULL) {
 455                                         M_INTMOVE(REG_ZERO, d);
 456                                 }
 457                                 else {
 458                                         disp = dseg_add_address(cd, iptr->sx.val.anyptr);
 459                                         M_ALD(d, REG_PV, disp);
 460                                 }
 461                         }
 462                         emit_store_dst(jd, iptr, d);
 463                         break;
 464
 465
 466                 /* load/store/copy/move operations ************************************/
 467
 468                 case ICMD_ILOAD:      /* ...  ==> ..., content of local variable      */
 469                 case ICMD_LLOAD:      /* ...  ==> ..., content of local variable      */
 470                 case ICMD_ALOAD:      /* ...  ==> ..., content of local variable      */
 471                 case ICMD_FLOAD:      /* ...  ==> ..., content of local variable      */
 472                 case ICMD_DLOAD:      /* ...  ==> ..., content of local variable      */
 473                 case ICMD_ISTORE:     /* ..., value  ==> ...                          */
 474                 case ICMD_LSTORE:     /* ..., value  ==> ...                          */
 475                 case ICMD_FSTORE:     /* ..., value  ==> ...                          */
 476                 case ICMD_DSTORE:     /* ..., value  ==> ...                          */
 477                 case ICMD_COPY:
 478                 case ICMD_MOVE:
 479
 480                         emit_copy(jd, iptr, VAROP(iptr->s1), VAROP(iptr->dst));
 481                         break;
 482
 483                 case ICMD_ASTORE:
 484                         if (!(iptr->flags.bits & INS_FLAG_RETADDR))
 485                                 emit_copy(jd, iptr, VAROP(iptr->s1), VAROP(iptr->dst));
 486                         break;
 487
 488
 489                 /* pop/dup/swap operations ********************************************/
 490
 491                 /* attention: double and longs are only one entry in CACAO ICMDs      */
 492
 493                 case ICMD_POP:        /* ..., value  ==> ...                          */
 494                 case ICMD_POP2:       /* ..., value, value  ==> ...                   */
 495                         break;
 496
 497
 498                 /* integer operations *************************************************/
 499
 500                 case ICMD_INEG:       /* ..., value  ==> ..., - value                 */
 501                 case ICMD_LNEG:
 502
 503                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 504                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 505                         M_SUB(REG_ZERO, s1, d);
 506                         emit_store_dst(jd, iptr, d);
 507                         break;
 508
 509                 case ICMD_I2L:        /* ..., value  ==> ..., value                   */
 510
 511                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 512                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 513                         M_INTMOVE(s1, d);
 514                         emit_store_dst(jd, iptr, d);
 515                         break;
 516
 517                 case ICMD_L2I:        /* ..., value  ==> ..., value                   */
 518
 519                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 520                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 521                         M_SRA_IMM(s1, 0, d); /* sign extend upper 32 bits */
 522                         emit_store_dst(jd, iptr, d);
 523                         break;
 524
 525                 case ICMD_INT2BYTE:   /* ..., value  ==> ..., value                   */
 526
 527                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 528                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 529                         M_SLLX_IMM(s1, 56, d);
 530                         M_SRAX_IMM( d, 56, d);
 531                         emit_store_dst(jd, iptr, d);
 532                         break;
 533
 534                 case ICMD_INT2CHAR:   /* ..., value  ==> ..., value                   */
 535
 536                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 537                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 538                         M_SLLX_IMM(s1, 48, d);
 539                         M_SRLX_IMM( d, 48, d);
 540                         emit_store_dst(jd, iptr, d);
 541                         break;
 542
 543                 case ICMD_INT2SHORT:   /* ..., value  ==> ..., value                   */
 544
 545                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 546                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 547                         M_SLLX_IMM(s1, 48, d);
 548                         M_SRAX_IMM( d, 48, d);
 549                         emit_store_dst(jd, iptr, d);
 550                         break;
 551
 552                 case ICMD_IADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 553                 case ICMD_LADD:
 554
 555                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 556                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 557                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 558                         M_ADD(s1, s2, d);
 559                         emit_store_dst(jd, iptr, d);
 560                         break;
 561
 562                 case ICMD_IINC:
 563                 case ICMD_IADDCONST:  /* ..., value  ==> ..., value + constant        */
 564                                       /* sx.val.i = constant                             */
 565
 566                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 567                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 568                         if ((iptr->sx.val.i >= -4096) && (iptr->sx.val.i <= 4095)) {
 569                                 M_ADD_IMM(s1, iptr->sx.val.i, d);
 570                         } else {
 571                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 572                                 M_ADD(s1, REG_ITMP2, d);
 573                         }
 574                         emit_store_dst(jd, iptr, d);
 575                         break;
 576
 577                 case ICMD_LADDCONST:  /* ..., value  ==> ..., value + constant        */
 578                                       /* sx.val.l = constant                             */
 579
 580                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 581                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 582                         if ((iptr->sx.val.l >= -4096) && (iptr->sx.val.l <= 4095)) {
 583                                 M_ADD_IMM(s1, iptr->sx.val.l, d);
 584                         } else {
 585                                 LCONST(REG_ITMP2, iptr->sx.val.l);
 586                                 M_ADD(s1, REG_ITMP2, d);
 587                         }
 588                         emit_store_dst(jd, iptr, d);
 589                         break;
 590
 591                 case ICMD_ISUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 592                 case ICMD_LSUB:
 593
 594                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 595                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 596                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 597                         M_SUB(s1, s2, d);
 598                         emit_store_dst(jd, iptr, d);
 599                         break;
 600
 601                 case ICMD_ISUBCONST:  /* ..., value  ==> ..., value + constant        */
 602                                       /* sx.val.i = constant                             */
 603
 604                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 605                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 606                         if ((iptr->sx.val.i >= -4096) && (iptr->sx.val.i <= 4095)) {
 607                                 M_SUB_IMM(s1, iptr->sx.val.i, d);
 608                         } else {
 609                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 610                                 M_SUB(s1, REG_ITMP2, d);
 611                         }
 612                         emit_store_dst(jd, iptr, d);
 613                         break;
 614
 615                 case ICMD_LSUBCONST:  /* ..., value  ==> ..., value - constant        */
 616                                       /* sx.val.l = constant                             */
 617
 618                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 619                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 620                         if ((iptr->sx.val.l >= -4096) && (iptr->sx.val.l <= 4095)) {
 621                                 M_SUB_IMM(s1, iptr->sx.val.l, d);
 622                         } else {
 623                                 LCONST(REG_ITMP2, iptr->sx.val.l);
 624                                 M_SUB(s1, REG_ITMP2, d);
 625                         }
 626                         emit_store_dst(jd, iptr, d);
 627                         break;
 628
 629                 case ICMD_IMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 630                 case ICMD_LMUL:
 631
 632                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 633                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 634                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 635                         M_MULX(s1, s2, d);
 636                         emit_store_dst(jd, iptr, d);
 637                         break;
 638
 639                 case ICMD_IMULCONST:  /* ..., value  ==> ..., value * constant        */
 640                                       /* sx.val.i = constant                             */
 641
 642                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 643                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 644                         if ((iptr->sx.val.i >= -4096) && (iptr->sx.val.i <= 4095)) {
 645                                 M_MULX_IMM(s1, iptr->sx.val.i, d);
 646                         } else {
 647                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 648                                 M_MULX(s1, REG_ITMP2, d);
 649                         }
 650                         emit_store_dst(jd, iptr, d);
 651                         break;
 652
 653                 case ICMD_LMULCONST:  /* ..., value  ==> ..., value * constant        */
 654                                       /* sx.val.l = constant                             */
 655
 656                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 657                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 658                         if ((iptr->sx.val.l >= -4096) && (iptr->sx.val.l <= 4095)) {
 659                                 M_MULX_IMM(s1, iptr->sx.val.l, d);
 660                         } else {
 661                                 LCONST(REG_ITMP2, iptr->sx.val.l);
 662                                 M_MULX(s1, REG_ITMP2, d);
 663                         }
 664                         emit_store_dst(jd, iptr, d);
 665                         break;
 666
 667                 case ICMD_IDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 668 /* XXX could also clear Y and use 32bit div */
 669                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 670                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 671                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 672                         emit_arithmetic_check(cd, iptr, s2);
 673                         M_ISEXT(s1, s1);
 674                         /* XXX trim s2 like s1 ? */
 675                         M_DIVX(s1, s2, d);
 676                         emit_store_dst(jd, iptr, d);
 677                         break;
 678
 679                 case ICMD_LDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 680
 681                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 682                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 683                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 684                         emit_arithmetic_check(cd, iptr, s2);
 685                         M_DIVX(s1, s2, d);
 686                         emit_store_dst(jd, iptr, d);
 687                         break;
 688
 689                 case ICMD_IREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 690
 691                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 692                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 693                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 694                         emit_arithmetic_check(cd, iptr, s2);
 695                         M_ISEXT(s1, s1);
 696                         /* XXX trim s2 like s1 ? */
 697                         M_DIVX(s1, s2, REG_ITMP3);
 698                         M_MULX(s2, REG_ITMP3, REG_ITMP3);
 699                         M_SUB(s1, REG_ITMP3, d);
 700                         emit_store_dst(jd, iptr, d);
 701                         break;
 702
 703                 case ICMD_LREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 704
 705                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 706                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 707                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 708                         emit_arithmetic_check(cd, iptr, s2);
 709                         M_DIVX(s1, s2, REG_ITMP3);
 710                         M_MULX(s2, REG_ITMP3, REG_ITMP3);
 711                         M_SUB(s1, REG_ITMP3, d);
 712                         emit_store_dst(jd, iptr, d);
 713                         break;
 714
 715                 case ICMD_IDIVPOW2:   /* ..., value  ==> ..., value << constant       */
 716                 case ICMD_LDIVPOW2:   /* val.i = constant                             */
 717
 718                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 719                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 720                         M_SRAX_IMM(s1, 63, REG_ITMP2);
 721                         M_SRLX_IMM(REG_ITMP2, 64 - iptr->sx.val.i, REG_ITMP2);
 722                         M_ADD(s1, REG_ITMP2, REG_ITMP2);
 723                         M_SRAX_IMM(REG_ITMP2, iptr->sx.val.i, d);
 724                         emit_store_dst(jd, iptr, d);
 725                         break;
 726
 727                 case ICMD_ISHL:       /* ..., val1, val2  ==> ..., val1 << val2       */
 728
 729                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 730                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 731                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 732                         M_SLL(s1, s2, d);
 733                         emit_store_dst(jd, iptr, d);
 734                         break;
 735
 736                 case ICMD_LSHL:       /* ..., val1, val2  ==> ..., val1 << val2       */
 737
 738                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 739                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 740                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 741                         M_SLLX(s1, s2, d);
 742                         emit_store_dst(jd, iptr, d);
 743                         break;
 744
 745                 case ICMD_ISHLCONST:  /* ..., value  ==> ..., value << constant       */
 746                                       /* val.i = constant                             */
 747
 748                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 749                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 750                         M_SLL_IMM(s1, iptr->sx.val.i, d);
 751                         emit_store_dst(jd, iptr, d);
 752                         break;
 753
 754                 case ICMD_LSHLCONST:  /* ..., value  ==> ..., value << constant       */
 755                                       /* val.i = constant                             */
 756
 757                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 758                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 759                         M_SLLX_IMM(s1, iptr->sx.val.i, d);
 760                         emit_store_dst(jd, iptr, d);
 761                         break;
 762
 763                 case ICMD_ISHR:       /* ..., val1, val2  ==> ..., val1 >> val2       */
 764
 765                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 766                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 767                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 768                         M_SRA(s1, s2, d);
 769                         emit_store_dst(jd, iptr, d);
 770                         break;
 771
 772                 case ICMD_ISHRCONST:  /* ..., value  ==> ..., value >> constant       */
 773                                       /* sx.val.i = constant                             */
 774
 775                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 776                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 777                         M_SRA_IMM(s1, iptr->sx.val.i, d);
 778                         emit_store_dst(jd, iptr, d);
 779                         break;
 780
 781                 case ICMD_IUSHR:      /* ..., val1, val2  ==> ..., val1 >>> val2      */
 782
 783                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 784                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 785                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 786                         M_SRL(s1, s2, d);
 787                         emit_store_dst(jd, iptr, d);
 788                         break;
 789
 790                 case ICMD_IUSHRCONST: /* ..., value  ==> ..., value >>> constant      */
 791                                       /* sx.val.i = constant                             */
 792
 793                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 794                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 795                         M_SRL_IMM(s1, iptr->sx.val.i, d);
 796                         emit_store_dst(jd, iptr, d);
 797                         break;
 798
 799                 case ICMD_LSHR:       /* ..., val1, val2  ==> ..., val1 >> val2       */
 800
 801                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 802                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 803                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 804                         M_SRAX(s1, s2, d);
 805                         emit_store_dst(jd, iptr, d);
 806                         break;
 807
 808                 case ICMD_LSHRCONST:  /* ..., value  ==> ..., value >> constant       */
 809                                       /* sx.val.i = constant                             */
 810
 811                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 812                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 813                         M_SRAX_IMM(s1, iptr->sx.val.i, d);
 814                         emit_store_dst(jd, iptr, d);
 815                         break;
 816
 817                 case ICMD_LUSHR:      /* ..., val1, val2  ==> ..., val1 >>> val2      */
 818
 819                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 820                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 821                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 822                         M_SRLX(s1, s2, d);
 823                         emit_store_dst(jd, iptr, d);
 824                         break;
 825
 826                 case ICMD_LUSHRCONST: /* ..., value  ==> ..., value >>> constant      */
 827                                       /* sx.val.i = constant                             */
 828
 829                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 830                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 831                         M_SRLX_IMM(s1, iptr->sx.val.i, d);
 832                         emit_store_dst(jd, iptr, d);
 833                         break;
 834
 835                 case ICMD_IAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 836                 case ICMD_LAND:
 837
 838                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 839                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 840                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 841                         M_AND(s1, s2, d);
 842                         emit_store_dst(jd, iptr, d);
 843                         break;
 844
 845                 case ICMD_IANDCONST:  /* ..., value  ==> ..., value & constant        */
 846                                       /* sx.val.i = constant                             */
 847
 848                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 849                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 850                         if ((iptr->sx.val.i >= -4096) && (iptr->sx.val.i <= 4095)) {
 851                                 M_AND_IMM(s1, iptr->sx.val.i, d);
 852                         } else {
 853                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 854                                 M_AND(s1, REG_ITMP2, d);
 855                         }
 856                         emit_store_dst(jd, iptr, d);
 857                         break;
 858
 859                 case ICMD_IREMPOW2:   /* ..., value  ==> ..., value % constant           */
 860                                       /* sx.val.i = constant                             */
 861                                       /* constant is actually constant - 1               */
 862
 863                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 864                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 865                         if (s1 == d) {
 866                                 M_MOV(s1, REG_ITMP1);
 867                                 s1 = REG_ITMP1;
 868                         }
 869                         M_ISEXT(s1, s1); /* trim for 32-bit compare (BGEZ) */
 870                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 4095)) {
 871                                 M_AND_IMM(s1, iptr->sx.val.i, d);
 872                                 M_BGEZ(s1, 5);
 873                                 M_NOP;
 874                                 M_SUB(REG_ZERO, s1, d);
 875                                 M_AND_IMM(d, iptr->sx.val.i, d);
 876                         } else {
 877                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 878                                 M_AND(s1, REG_ITMP2, d);
 879                                 M_BGEZ(s1, 5);
 880                                 M_NOP;
 881                                 M_SUB(REG_ZERO, s1, d);
 882                                 M_AND(d, REG_ITMP2, d);
 883                         }
 884                         M_SUB(REG_ZERO, d, d);
 885                         emit_store_dst(jd, iptr, d);
 886                         break;
 887
 888                 case ICMD_LANDCONST:  /* ..., value  ==> ..., value & constant        */
 889                                       /* sx.val.l = constant                             */
 890
 891                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 892                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 893                         if ((iptr->sx.val.l >= -4096) && (iptr->sx.val.l <= 4095)) {
 894                                 M_AND_IMM(s1, iptr->sx.val.l, d);
 895                         } else {
 896                                 LCONST(REG_ITMP2, iptr->sx.val.l);
 897                                 M_AND(s1, REG_ITMP2, d);
 898                         }
 899                         emit_store_dst(jd, iptr, d);
 900                         break;
 901
 902                 case ICMD_LREMPOW2:   /* ..., value  ==> ..., value % constant        */
 903                                       /* sx.val.l = constant                             */
 904
 905                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 906                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 907                         if (s1 == d) {
 908                                 M_MOV(s1, REG_ITMP1);
 909                                 s1 = REG_ITMP1;
 910                         }
 911                         if ((iptr->sx.val.l >= -4096) && (iptr->sx.val.l <= 4095)) {
 912                                 M_AND_IMM(s1, iptr->sx.val.l, d);
 913                                 M_BGEZ(s1, 4);
 914                                 M_NOP;
 915                                 M_SUB(REG_ZERO, s1, d);
 916                                 M_AND_IMM(d, iptr->sx.val.l, d);
 917                         } else {
 918                                 LCONST(REG_ITMP2, iptr->sx.val.l);
 919                                 M_AND(s1, REG_ITMP2, d);
 920                                 M_BGEZ(s1, 4);
 921                                 M_NOP;
 922                                 M_SUB(REG_ZERO, s1, d);
 923                                 M_AND(d, REG_ITMP2, d);
 924                         }
 925                         M_SUB(REG_ZERO, d, d);
 926                         emit_store_dst(jd, iptr, d);
 927                         break;
 928
 929                 case ICMD_IOR:        /* ..., val1, val2  ==> ..., val1 | val2        */
 930                 case ICMD_LOR:
 931
 932                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 933                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 934                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 935                         M_OR(s1,s2, d);
 936                         emit_store_dst(jd, iptr, d);
 937                         break;
 938
 939                 case ICMD_IORCONST:   /* ..., value  ==> ..., value | constant        */
 940                                       /* sx.val.i = constant                             */
 941
 942                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 943                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 944                         if ((iptr->sx.val.i >= -4096) && (iptr->sx.val.i <= 4095)) {
 945                                 M_OR_IMM(s1, iptr->sx.val.i, d);
 946                         } else {
 947                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 948                                 M_OR(s1, REG_ITMP2, d);
 949                         }
 950                         emit_store_dst(jd, iptr, d);
 951                         break;
 952
 953                 case ICMD_LORCONST:   /* ..., value  ==> ..., value | constant        */
 954                                       /* sx.val.l = constant                             */
 955
 956                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 957                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 958                         if ((iptr->sx.val.l >= -4096) && (iptr->sx.val.l <= 4095)) {
 959                                 M_OR_IMM(s1, iptr->sx.val.l, d);
 960                         } else {
 961                                 LCONST(REG_ITMP2, iptr->sx.val.l);
 962                                 M_OR(s1, REG_ITMP2, d);
 963                         }
 964                         emit_store_dst(jd, iptr, d);
 965                         break;
 966
 967                 case ICMD_IXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
 968                 case ICMD_LXOR:
 969
 970                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 971                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 972                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 973                         M_XOR(s1, s2, d);
 974                         emit_store_dst(jd, iptr, d);
 975                         break;
 976
 977                 case ICMD_IXORCONST:  /* ..., value  ==> ..., value ^ constant        */
 978                                       /* sx.val.i = constant                             */
 979
 980                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 981                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 982                         if ((iptr->sx.val.i >= -4096) && (iptr->sx.val.i <= 4095)) {
 983                                 M_XOR_IMM(s1, iptr->sx.val.i, d);
 984                         } else {
 985                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 986                                 M_XOR(s1, REG_ITMP2, d);
 987                         }
 988                         emit_store_dst(jd, iptr, d);
 989                         break;
 990
 991                 case ICMD_LXORCONST:  /* ..., value  ==> ..., value ^ constant        */
 992                                       /* sx.val.l = constant                             */
 993
 994                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 995                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 996                         if ((iptr->sx.val.l >= -4096) && (iptr->sx.val.l <= 4095)) {
 997                                 M_XOR_IMM(s1, iptr->sx.val.l, d);
 998                         } else {
 999                                 LCONST(REG_ITMP2, iptr->sx.val.l);
1000                                 M_XOR(s1, REG_ITMP2, d);
1001                         }
1002                         emit_store_dst(jd, iptr, d);
1003                         break;
1004
1005
1006                 case ICMD_LCMP:       /* ..., val1, val2  ==> ..., val1 cmp val2      */
1007
1008                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1009                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1010                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1011                         M_CMP(s1, s2);
1012                         M_MOV(REG_ZERO, d);
1013                         M_XCMOVLT_IMM(-1, d);
1014                         M_XCMOVGT_IMM(1, d);
1015                         emit_store_dst(jd, iptr, d);
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_FTMP2);
1025                         M_FNEG(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_FTMP2);
1033                         M_DNEG(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_FTMP2);
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_FTMP2);
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_FTMP2);
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_FTMP2);
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_FTMP2);
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_FTMP2);
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_FTMP2);
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_FTMP2);
1105                         M_DDIV(s1, s2, d);
1106                         emit_store_dst(jd, iptr, d);
1107                         break;
1108
1109                 case ICMD_I2F:
1110                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1111                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1112                         disp = dseg_add_float(cd, 0.0);
1113                         M_IST (s1, REG_PV_CALLEE, disp);
1114                         M_FLD (d, REG_PV_CALLEE, disp);
1115                         M_CVTIF (d, d); /* rd gets translated to double target register */
1116                         emit_store_dst(jd, iptr, d);
1117                         break;
1118
1119                 case ICMD_I2D:
1120                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1121                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1122                         disp = dseg_add_float(cd, 0.0);
1123                         M_IST(s1, REG_PV_CALLEE, disp);
1124                         M_FLD(REG_FTMP2, REG_PV_CALLEE, disp); /* REG_FTMP2 needs to be a double temp */
1125                         M_CVTID (REG_FTMP2, d); /* rd gets translated to double target register */
1126                         emit_store_dst(jd, iptr, d);
1127                         break;
1128
1129                 case ICMD_L2F:
1130                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1131                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1132                         disp = dseg_add_double(cd, 0.0);
1133                         M_STX(s1, REG_PV_CALLEE, disp);
1134                         M_DLD(REG_FTMP3, REG_PV_CALLEE, disp);
1135                         M_CVTLF(REG_FTMP3, d);
1136                         emit_store_dst(jd, iptr, d);
1137                         break;
1138
1139                 case ICMD_L2D:
1140                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1141                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1142                         disp = dseg_add_double(cd, 0.0);
1143                         M_STX(s1, REG_PV_CALLEE, disp);
1144                         M_DLD(d, REG_PV_CALLEE, disp);
1145                         M_CVTLD(d, d);
1146                         emit_store_dst(jd, iptr, d);
1147                         break;
1148
1149                 case ICMD_F2I:       /* ..., value  ==> ..., (int) value              */
1150                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1151                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
1152                         disp = dseg_add_float(cd, 0.0);
1153                         M_CVTFI(s1, REG_FTMP2);
1154                         M_FST(REG_FTMP2, REG_PV_CALLEE, disp);
1155                         M_ILD(d, REG_PV, disp);
1156                         emit_store_dst(jd, iptr, d);
1157                         break;
1158
1159
1160                 case ICMD_D2I:       /* ..., value  ==> ..., (int) value             */
1161                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1162                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
1163                         disp = dseg_add_float(cd, 0.0);
1164                         M_CVTDI(s1, REG_FTMP2);
1165                         M_FST(REG_FTMP2, REG_PV, disp);
1166                         M_ILD(d, REG_PV, disp);
1167                         emit_store_dst(jd, iptr, d);
1168                         break;
1169
1170                 case ICMD_F2L:       /* ..., value  ==> ..., (long) value             */
1171                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1172                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
1173                         disp = dseg_add_double(cd, 0.0);
1174                         M_CVTFL(s1, REG_FTMP2); /* FTMP2 needs to be double reg */
1175                         M_DST(REG_FTMP2, REG_PV, disp);
1176                         M_LDX(d, REG_PV, disp);
1177                         emit_store_dst(jd, iptr, d);
1178                         break;
1179
1180                 case ICMD_D2L:       /* ..., value  ==> ..., (long) value             */
1181                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1182                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
1183                         disp = dseg_add_double(cd, 0.0);
1184                         M_CVTDL(s1, REG_FTMP2); /* FTMP2 needs to be double reg */
1185                         M_DST(REG_FTMP2, REG_PV, disp);
1186                         M_LDX(d, REG_PV, disp);
1187                         emit_store_dst(jd, iptr, d);
1188                         break;
1189
1190                 case ICMD_F2D:       /* ..., value  ==> ..., (double) value           */
1191
1192                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1193                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1194                         M_CVTFD(s1, d);
1195                         emit_store_dst(jd, iptr, d);
1196                         break;
1197
1198                 case ICMD_D2F:       /* ..., value  ==> ..., (float) value            */
1199
1200                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1201                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1202                         M_CVTDF(s1, d);
1203                         emit_store_dst(jd, iptr, d);
1204                         break;
1205
1206         /* XXX merge F/D versions? only compare instr. is different */
1207                 case ICMD_FCMPL:      /* ..., val1, val2  ==> ..., val1 fcmpl val2    */
1208
1209                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1210                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1211                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
1212                         M_FCMP(s1,s2);
1213                         M_OR_IMM(REG_ZERO, -1, d); /* less by default (less or unordered) */
1214                         M_CMOVFEQ_IMM(0, d); /* 0 if equal */
1215                         M_CMOVFGT_IMM(1, d); /* 1 if greater */
1216                         emit_store_dst(jd, iptr, d);
1217                         break;
1218
1219                 case ICMD_DCMPL:      /* ..., val1, val2  ==> ..., val1 fcmpl val2    */
1220
1221                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1222                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1223                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
1224                         M_DCMP(s1,s2);
1225                         M_OR_IMM(REG_ZERO, -1, d); /* less by default (less or unordered) */
1226                         M_CMOVFEQ_IMM(0, d); /* 0 if equal */
1227                         M_CMOVFGT_IMM(1, d); /* 1 if greater */
1228                         emit_store_dst(jd, iptr, d);
1229                         break;
1230
1231                 case ICMD_FCMPG:      /* ..., val1, val2  ==> ..., val1 fcmpg val2    */
1232
1233                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1234                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1235                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
1236                         M_FCMP(s1,s2);
1237                         M_OR_IMM(REG_ZERO, 1, d); /* greater by default (greater or unordered) */
1238                         M_CMOVFEQ_IMM(0, d); /* 0 if equal */
1239                         M_CMOVFLT_IMM(-1, d); /* -1 if less */
1240                         emit_store_dst(jd, iptr, d);
1241                         break;
1242
1243                 case ICMD_DCMPG:      /* ..., val1, val2  ==> ..., val1 fcmpg val2    */
1244
1245                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1246                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1247                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
1248                         M_DCMP(s1,s2);
1249                         M_OR_IMM(REG_ZERO, 1, d); /* greater by default (greater or unordered) */
1250                         M_CMOVFEQ_IMM(0, d); /* 0 if equal */
1251                         M_CMOVFLT_IMM(-1, d); /* -1 if less */
1252                         emit_store_dst(jd, iptr, d);
1253                         break;
1254
1255
1256                 /* memory operations **************************************************/
1257
1258                 case ICMD_ARRAYLENGTH: /* ..., arrayref  ==> ..., length              */
1259
1260                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1261                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1262                         emit_nullpointer_check(cd, iptr, s1);
1263                         M_ILD(d, s1, OFFSET(java_arrayheader, size));
1264                         emit_store_dst(jd, iptr, d);
1265                         break;
1266
1267                 case ICMD_BALOAD:     /* ..., arrayref, index  ==> ..., value         */
1268
1269                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1270                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1271                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1272                         /* implicit null-pointer check */
1273                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1274                         M_AADD(s2, s1, REG_ITMP3);
1275                         M_BLDS(d, REG_ITMP3, OFFSET(java_bytearray, data[0]));
1276                         emit_store_dst(jd, iptr, d);
1277                         break;
1278
1279                 case ICMD_CALOAD:     /* ..., arrayref, index  ==> ..., value         */
1280
1281                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1282                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1283                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1284                         /* implicit null-pointer check */
1285                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1286                         M_AADD(s2, s1, REG_ITMP3);
1287                         M_AADD(s2, REG_ITMP3, REG_ITMP3);
1288                         M_SLDU(d, REG_ITMP3, OFFSET(java_chararray, data[0]));
1289                         emit_store_dst(jd, iptr, d);
1290                         break;
1291
1292                 case ICMD_SALOAD:     /* ..., arrayref, index  ==> ..., value         */
1293
1294                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1295                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1296                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1297                         /* implicit null-pointer check */
1298                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1299                         M_AADD(s2, s1, REG_ITMP3);
1300                         M_AADD(s2, REG_ITMP3, REG_ITMP3);
1301                         M_SLDS(d, REG_ITMP3, OFFSET(java_shortarray, data[0]));
1302                         emit_store_dst(jd, iptr, d);
1303                         break;
1304
1305                 case ICMD_IALOAD:     /* ..., arrayref, index  ==> ..., value         */
1306
1307                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1308                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1309                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1310                         /* implicit null-pointer check */
1311                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1312                         M_ASLL_IMM(s2, 2, REG_ITMP3);
1313                         M_AADD(REG_ITMP3, s1, REG_ITMP3);
1314                         M_ILD(d, REG_ITMP3, OFFSET(java_intarray, data[0]));
1315                         emit_store_dst(jd, iptr, d);
1316                         break;
1317
1318                 case ICMD_LALOAD:     /* ..., arrayref, index  ==> ..., value         */
1319
1320                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1321                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1322                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1323                         /* implicit null-pointer check */
1324                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1325                         M_ASLL_IMM(s2, 3, REG_ITMP3);
1326                         M_AADD(REG_ITMP3, s1, REG_ITMP3);
1327                         M_LDX(d, REG_ITMP3, OFFSET(java_longarray, data[0]));
1328                         emit_store_dst(jd, iptr, d);
1329                         break;
1330
1331                 case ICMD_FALOAD:     /* ..., arrayref, index  ==> ..., value         */
1332
1333                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1334                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1335                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1336                         /* implicit null-pointer check */
1337                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1338                         M_ASLL_IMM(s2, 2, REG_ITMP3);
1339                         M_AADD(REG_ITMP3, s1, REG_ITMP3);
1340                         M_FLD(d, REG_ITMP3, OFFSET(java_floatarray, data[0]));
1341                         emit_store_dst(jd, iptr, d);
1342                         break;
1343
1344                 case ICMD_DALOAD:     /* ..., arrayref, index  ==> ..., value         */
1345
1346                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1347                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1348                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1349                         /* implicit null-pointer check */
1350                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1351                         M_ASLL_IMM(s2, 3, REG_ITMP3);
1352                         M_AADD(REG_ITMP3, s1, REG_ITMP3);
1353                         M_DLD(d, REG_ITMP3, OFFSET(java_doublearray, data[0]));
1354                         emit_store_dst(jd, iptr, d);
1355                         break;
1356
1357                 case ICMD_AALOAD:     /* ..., arrayref, index  ==> ..., value         */
1358
1359                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1360                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1361                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1362                         /* implicit null-pointer check */
1363                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1364                         M_ASLL_IMM(s2, POINTERSHIFT, REG_ITMP3);
1365                         M_AADD(REG_ITMP3, s1, REG_ITMP3);
1366                         M_ALD(d, REG_ITMP3, OFFSET(java_objectarray, data[0]));
1367                         emit_store_dst(jd, iptr, d);
1368                         break;
1369
1370
1371                 case ICMD_BASTORE:    /* ..., arrayref, index, value  ==> ...         */
1372
1373                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1374                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1375                         /* implicit null-pointer check */
1376                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1377                         M_AADD(s2, s1, REG_ITMP1);
1378                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1379                         M_BST(s3, REG_ITMP1, OFFSET(java_bytearray, data[0]));
1380                         break;
1381
1382                 case ICMD_CASTORE:    /* ..., arrayref, index, value  ==> ...         */
1383                 case ICMD_SASTORE:    /* ..., arrayref, index, value  ==> ...         */
1384
1385                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1386                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1387                         /* implicit null-pointer check */
1388                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1389                         M_AADD(s2, s1, REG_ITMP1);
1390                         M_AADD(s2, REG_ITMP1, REG_ITMP1);
1391                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1392                         M_SST(s3, REG_ITMP1, OFFSET(java_chararray, data[0]));
1393                         break;
1394
1395                 case ICMD_IASTORE:    /* ..., arrayref, index, value  ==> ...         */
1396
1397                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1398                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1399                         /* implicit null-pointer check */
1400                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1401                         M_ASLL_IMM(s2, 2, REG_ITMP2);
1402                         M_AADD(REG_ITMP2, s1, REG_ITMP1);
1403                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1404                         M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_intarray, data[0]));
1405                         break;
1406
1407                 case ICMD_LASTORE:    /* ..., arrayref, index, value  ==> ...         */
1408
1409                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1410                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1411                         /* implicit null-pointer check */
1412                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1413                         M_ASLL_IMM(s2, 3, REG_ITMP2);
1414                         M_AADD(REG_ITMP2, s1, REG_ITMP1);
1415                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1416                         M_STX_INTERN(s3, REG_ITMP1, OFFSET(java_longarray, data[0]));
1417                         break;
1418
1419                 case ICMD_FASTORE:    /* ..., arrayref, index, value  ==> ...         */
1420
1421                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1422                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1423                         /* implicit null-pointer check */
1424                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1425                         M_ASLL_IMM(s2, 2, REG_ITMP2);
1426                         M_AADD(REG_ITMP2, s1, REG_ITMP1);
1427                         s3 = emit_load_s3(jd, iptr, REG_FTMP1);
1428                         M_FST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray, data[0]));
1429                         break;
1430
1431                 case ICMD_DASTORE:    /* ..., arrayref, index, value  ==> ...         */
1432
1433                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1434                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1435                         /* implicit null-pointer check */
1436                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1437                         M_ASLL_IMM(s2, 3, REG_ITMP2);
1438                         M_AADD(REG_ITMP2, s1, REG_ITMP1);
1439                         s3 = emit_load_s3(jd, iptr, REG_FTMP1);
1440                         M_DST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray, data[0]));
1441                         break;
1442
1443
1444                 case ICMD_AASTORE:    /* ..., arrayref, index, value  ==> ...         */
1445
1446                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1447                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1448                         /* implicit null-pointer check */
1449                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1450                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1451
1452                         M_MOV(s1, rd->argintregs[0]);
1453                         M_MOV(s3, rd->argintregs[1]);
1454                         disp = dseg_add_functionptr(cd, BUILTIN_canstore);
1455                         M_ALD(REG_ITMP3, REG_PV, disp);
1456                         M_JMP(REG_RA_CALLER, REG_ITMP3, REG_ZERO);
1457                         M_NOP;
1458                         emit_exception_check(cd, iptr);
1459
1460                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1461                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1462                         M_ASLL_IMM(s2, POINTERSHIFT, REG_ITMP2);
1463                         M_AADD(REG_ITMP2, s1, REG_ITMP1);
1464                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1465                         /* implicit null-pointer check */
1466                         M_AST_INTERN(s3, REG_ITMP1, OFFSET(java_objectarray, data[0]));
1467                         break;
1468
1469
1470                 case ICMD_BASTORECONST:   /* ..., arrayref, index  ==> ...            */
1471
1472                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1473                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1474                         /* implicit null-pointer check */
1475                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1476                         M_AADD(s2, s1, REG_ITMP1);
1477                         M_BST(REG_ZERO, REG_ITMP1, OFFSET(java_bytearray, data[0]));
1478                         break;
1479
1480                 case ICMD_CASTORECONST:   /* ..., arrayref, index  ==> ...            */
1481                 case ICMD_SASTORECONST:   /* ..., arrayref, index  ==> ...            */
1482
1483                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1484                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1485                         /* implicit null-pointer check */
1486                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1487                         M_AADD(s2, s1, REG_ITMP1);
1488                         M_AADD(s2, REG_ITMP1, REG_ITMP1);
1489                         M_SST(REG_ZERO, REG_ITMP1, OFFSET(java_chararray, data[0]));
1490                         break;
1491
1492                 case ICMD_IASTORECONST:   /* ..., arrayref, index  ==> ...            */
1493
1494                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1495                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1496                         /* implicit null-pointer check */
1497                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1498                         M_ASLL_IMM(s2, 2, REG_ITMP2);
1499                         M_AADD(REG_ITMP2, s1, REG_ITMP1);
1500                         M_IST_INTERN(REG_ZERO, REG_ITMP1, OFFSET(java_intarray, data[0]));
1501                         break;
1502
1503                 case ICMD_LASTORECONST:   /* ..., arrayref, index  ==> ...            */
1504
1505                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1506                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1507                         /* implicit null-pointer check */
1508                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1509                         M_ASLL_IMM(s2, 3, REG_ITMP2);
1510                         M_AADD(REG_ITMP2, s1, REG_ITMP1);
1511                         M_STX_INTERN(REG_ZERO, REG_ITMP1, OFFSET(java_longarray, data[0]));
1512                         break;
1513
1514                 case ICMD_AASTORECONST:   /* ..., arrayref, index  ==> ...            */
1515
1516                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1517                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1518                         /* implicit null-pointer check */
1519                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1520                         M_ASLL_IMM(s2, POINTERSHIFT, REG_ITMP2);
1521                         M_AADD(REG_ITMP2, s1, REG_ITMP1);
1522                         M_AST_INTERN(REG_ZERO, REG_ITMP1, OFFSET(java_objectarray, data[0]));
1523                         break;
1524
1525
1526                 case ICMD_GETSTATIC:  /* ...  ==> ..., value                          */
1527
1528                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1529                                 uf = iptr->sx.s23.s3.uf;
1530                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1531                                 disp      = dseg_add_unique_address(cd, uf);
1532
1533                                 codegen_add_patch_ref(cd, PATCHER_get_putstatic, uf, disp);
1534                         }
1535                         else {
1536                                 fi = iptr->sx.s23.s3.fmiref->p.field;
1537                                 fieldtype = fi->type;
1538                                 disp = dseg_add_address(cd, &(fi->value));
1539
1540                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class))
1541                                         codegen_add_patch_ref(cd, PATCHER_clinit, fi->class, disp);
1542                         }
1543
1544                         M_ALD(REG_ITMP1, REG_PV, disp);
1545
1546                         switch (fieldtype) {
1547                         case TYPE_INT:
1548                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1549                                 M_ILD_INTERN(d, REG_ITMP1, 0);
1550                                 break;
1551                         case TYPE_LNG:
1552                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1553                                 M_LDX_INTERN(d, REG_ITMP1, 0);
1554                                 break;
1555                         case TYPE_ADR:
1556                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1557                                 M_ALD_INTERN(d, REG_ITMP1, 0);
1558                                 break;
1559                         case TYPE_FLT:
1560                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1561                                 M_FLD_INTERN(d, REG_ITMP1, 0);
1562                                 break;
1563                         case TYPE_DBL:
1564                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1565                                 M_DLD_INTERN(d, REG_ITMP1, 0);
1566                                 break;
1567                         }
1568                         emit_store_dst(jd, iptr, d);
1569                         break;
1570
1571                 case ICMD_PUTSTATIC:  /* ..., value  ==> ...                          */
1572
1573                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1574                                 uf = iptr->sx.s23.s3.uf;
1575                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1576                                 disp      = dseg_add_unique_address(cd, uf);
1577
1578                                 codegen_add_patch_ref(cd, PATCHER_get_putstatic, uf, disp);
1579                         }
1580                         else {
1581                                 fi = iptr->sx.s23.s3.fmiref->p.field;
1582                                 fieldtype = fi->type;
1583                                 disp = dseg_add_address(cd, &(fi->value));
1584
1585                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class))
1586                                         codegen_add_patch_ref(cd, PATCHER_clinit, fi->class, disp);
1587                         }
1588
1589                         M_ALD(REG_ITMP1, REG_PV, disp);
1590
1591                         switch (fieldtype) {
1592                         case TYPE_INT:
1593                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1594                                 M_IST_INTERN(s1, REG_ITMP1, 0);
1595                                 break;
1596                         case TYPE_LNG:
1597                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1598                                 M_STX_INTERN(s1, REG_ITMP1, 0);
1599                                 break;
1600                         case TYPE_ADR:
1601                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1602                                 M_AST_INTERN(s1, REG_ITMP1, 0);
1603                                 break;
1604                         case TYPE_FLT:
1605                                 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1606                                 M_FST_INTERN(s1, REG_ITMP1, 0);
1607                                 break;
1608                         case TYPE_DBL:
1609                                 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1610                                 M_DST_INTERN(s1, REG_ITMP1, 0);
1611                                 break;
1612                         }
1613                         break;
1614
1615                 case ICMD_PUTSTATICCONST: /* ...  ==> ...                             */
1616                                           /* val = value (in current instruction)     */
1617                                           /* following NOP)                           */
1618
1619                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1620                                 uf        = iptr->sx.s23.s3.uf;
1621                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1622                                 disp = dseg_add_unique_address(cd, uf);
1623
1624                                 codegen_add_patch_ref(cd, PATCHER_get_putstatic, uf, disp);
1625                         }
1626                         else {
1627                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1628                                 fieldtype = fi->type;
1629                                 disp      = dseg_add_address(cd, &(fi->value));
1630
1631                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class))
1632                                         codegen_add_patch_ref(cd, PATCHER_clinit, fi->class, disp);
1633                         }
1634
1635                         M_ALD(REG_ITMP1, REG_PV, disp);
1636
1637                         switch (fieldtype) {
1638                         case TYPE_INT:
1639                                 M_IST_INTERN(REG_ZERO, REG_ITMP1, 0);
1640                                 break;
1641                         case TYPE_LNG:
1642                                 M_STX_INTERN(REG_ZERO, REG_ITMP1, 0);
1643                                 break;
1644                         case TYPE_ADR:
1645                                 M_AST_INTERN(REG_ZERO, REG_ITMP1, 0);
1646                                 break;
1647                         case TYPE_FLT:
1648                                 M_FST_INTERN(REG_ZERO, REG_ITMP1, 0);
1649                                 break;
1650                         case TYPE_DBL:
1651                                 M_DST_INTERN(REG_ZERO, REG_ITMP1, 0);
1652                                 break;
1653                         }
1654                         break;
1655
1656
1657                 case ICMD_GETFIELD:   /* ...  ==> ..., value                          */
1658
1659                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1660                         emit_nullpointer_check(cd, iptr, s1);
1661
1662                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1663                                 uf = iptr->sx.s23.s3.uf;
1664
1665                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1666                                 disp      = 0;
1667
1668                                 codegen_add_patch_ref(cd, PATCHER_get_putfield, uf, 0);
1669                         }
1670                         else {
1671                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1672                                 fieldtype = fi->type;
1673                                 disp      = fi->offset;
1674                         }
1675
1676                         switch (fieldtype) {
1677                         case TYPE_INT:
1678                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1679                                 M_ILD(d, s1, disp);
1680                                 break;
1681                         case TYPE_LNG:
1682                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1683                                 M_LDX(d, s1, disp);
1684                                 break;
1685                         case TYPE_ADR:
1686                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1687                                 M_ALD(d, s1, disp);
1688                                 break;
1689                         case TYPE_FLT:
1690                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1691                                 M_FLD(d, s1, disp);
1692                                 break;
1693                         case TYPE_DBL:
1694                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1695                                 M_DLD(d, s1, disp);
1696                                 break;
1697                         default:
1698                                 assert(0);
1699                                 break;
1700                         }
1701                         emit_store_dst(jd, iptr, d);
1702                         break;
1703
1704                 case ICMD_PUTFIELD:   /* ..., objectref, value  ==> ...               */
1705
1706                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1707                         emit_nullpointer_check(cd, iptr, s1);
1708
1709                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1710                                 uf = iptr->sx.s23.s3.uf;
1711                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1712                                 disp      = 0;
1713                         }
1714                         else {
1715                                 uf        = NULL;
1716                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1717                                 fieldtype = fi->type;
1718                                 disp      = fi->offset;
1719                                 }
1720
1721                         if (IS_INT_LNG_TYPE(fieldtype))
1722                                 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1723                         else
1724                                 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1725
1726                         if (INSTRUCTION_IS_UNRESOLVED(iptr))
1727                                 codegen_add_patch_ref(cd, PATCHER_get_putfield, uf, 0);
1728
1729                         switch (fieldtype) {
1730                         case TYPE_INT:
1731                                 M_IST(s2, s1, disp);
1732                                 break;
1733                         case TYPE_LNG:
1734                                 M_STX(s2, s1, disp);
1735                                 break;
1736                         case TYPE_ADR:
1737                                 M_AST(s2, s1, disp);
1738                                 break;
1739                         case TYPE_FLT:
1740                                 M_FST(s2, s1, disp);
1741                                 break;
1742                         case TYPE_DBL:
1743                                 M_DST(s2, s1, disp);
1744                                 break;
1745                         default:
1746                                 assert(0);
1747                                 break;
1748                         }
1749                         break;
1750
1751                 case ICMD_PUTFIELDCONST:  /* ..., objectref  ==> ...                  */
1752                                           /* val = value (in current instruction)     */
1753                                           /* following NOP)                           */
1754
1755                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1756                         emit_nullpointer_check(cd, iptr, s1);
1757
1758                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1759                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1760
1761                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1762
1763                                 codegen_addpatchref(cd, PATCHER_get_putfield,
1764                                                                         uf, 0);
1765
1766                                 if (opt_showdisassemble) {
1767                                         M_NOP; M_NOP;
1768                                 }
1769
1770                                 disp = 0;
1771
1772                         } else {
1773                         {
1774                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1775
1776                                 fieldtype = fi->type;
1777                                 disp = fi->offset;
1778                         }
1779
1780                         }
1781
1782                         switch (fieldtype) {
1783                         case TYPE_INT:
1784                                 M_IST(REG_ZERO, s1, disp);
1785                                 break;
1786                         case TYPE_LNG:
1787                                 M_STX(REG_ZERO, s1, disp);
1788                                 break;
1789                         case TYPE_ADR:
1790                                 M_AST(REG_ZERO, s1, disp);
1791                                 break;
1792                         case TYPE_FLT:
1793                                 M_FST(REG_ZERO, s1, disp);
1794                                 break;
1795                         case TYPE_DBL:
1796                                 M_DST(REG_ZERO, s1, disp);
1797                                 break;
1798                         }
1799                         break;
1800
1801
1802                 /* branch operations **************************************************/
1803
1804                 case ICMD_ATHROW:       /* ..., objectref ==> ... (, objectref)       */
1805
1806                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1807                         M_INTMOVE(s1, REG_ITMP2_XPTR);
1808
1809 #ifdef ENABLE_VERIFIER
1810                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1811                                 unresolved_class *uc = iptr->sx.s23.s2.uc;
1812
1813                                 codegen_add_patch_ref(cd, PATCHER_athrow_areturn, uc, 0);
1814                         }
1815 #endif /* ENABLE_VERIFIER */
1816
1817                         disp = dseg_add_functionptr(cd, asm_handle_exception);
1818                         M_ALD(REG_ITMP1, REG_PV, disp);
1819                         M_JMP(REG_ITMP3_XPC, REG_ITMP1, REG_ZERO);
1820                         M_NOP;
1821                         M_NOP;              /* nop ensures that XPC is less than the end */
1822                                             /* of basic block                            */
1823                         ALIGNCODENOP;
1824                         break;
1825
1826                 case ICMD_GOTO:         /* ... ==> ...                                */
1827                 case ICMD_RET:          /* ... ==> ...                                */
1828
1829                         emit_br(cd, iptr->dst.block);
1830                         ALIGNCODENOP;
1831                         break;
1832
1833                 case ICMD_JSR:          /* ... ==> ...                                */
1834
1835                         emit_br(cd, iptr->sx.s23.s3.jsrtarget.block);
1836                         ALIGNCODENOP;
1837                         break;
1838
1839                 case ICMD_IFNULL:       /* ..., value ==> ...                         */
1840                 case ICMD_IFNONNULL:
1841
1842                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1843                         emit_bccz(cd, iptr->dst.block, iptr->opc - ICMD_IFNULL, s1, BRANCH_OPT_NONE);
1844                         break;
1845
1846                 /* Note: int compares must not branch on the register directly.       */
1847                 /* Reason is, that register content is not 32-bit clean.              */
1848
1849                 case ICMD_IFEQ:         /* ..., value ==> ...                         */
1850
1851                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1852
1853                         if ((iptr->sx.val.i >= -4096) && (iptr->sx.val.i <= 4095)) {
1854                                 M_CMP_IMM(s1, iptr->sx.val.i);
1855                         }
1856                         else {
1857                                 ICONST(REG_ITMP2, iptr->sx.val.i);
1858                                 M_CMP(s1, REG_ITMP2);
1859                         }
1860                         emit_beq(cd, iptr->dst.block);
1861                         break;
1862
1863                 case ICMD_IFLT:         /* ..., value ==> ...                         */
1864
1865                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1866
1867                         if ((iptr->sx.val.i >= -4096) && (iptr->sx.val.i <= 4095)) {
1868                                 M_CMP_IMM(s1, iptr->sx.val.i);
1869                         }
1870                         else {
1871                                 ICONST(REG_ITMP2, iptr->sx.val.i);
1872                                 M_CMP(s1, REG_ITMP2);
1873                         }
1874                         emit_blt(cd, iptr->dst.block);
1875                         break;
1876
1877                 case ICMD_IFLE:         /* ..., value ==> ...                         */
1878
1879                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1880
1881                         if ((iptr->sx.val.i >= -4096) && (iptr->sx.val.i <= 4095)) {
1882                                 M_CMP_IMM(s1, iptr->sx.val.i);
1883                         }
1884                         else {
1885                                 ICONST(REG_ITMP2, iptr->sx.val.i);
1886                                 M_CMP(s1, REG_ITMP2);
1887                         }
1888                         emit_ble(cd, iptr->dst.block);
1889                         break;
1890
1891                 case ICMD_IFNE:         /* ..., value ==> ...                         */
1892
1893                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1894
1895                         if ((iptr->sx.val.i >= -4096) && (iptr->sx.val.i <= 4095)) {
1896                                 M_CMP_IMM(s1, iptr->sx.val.i);
1897                         }
1898                         else {
1899                                 ICONST(REG_ITMP2, iptr->sx.val.i);
1900                                 M_CMP(s1, REG_ITMP2);
1901                         }
1902                         emit_bne(cd, iptr->dst.block);
1903                         break;
1904
1905                 case ICMD_IFGT:         /* ..., value ==> ...                         */
1906
1907                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1908
1909                         if ((iptr->sx.val.i >= -4096) && (iptr->sx.val.i <= 4095)) {
1910                                 M_CMP_IMM(s1, iptr->sx.val.i);
1911                         }
1912                         else {
1913                                 ICONST(REG_ITMP2, iptr->sx.val.i);
1914                                 M_CMP(s1, REG_ITMP2);
1915                         }
1916                         emit_bgt(cd, iptr->dst.block);
1917                         break;
1918
1919                 case ICMD_IFGE:         /* ..., value ==> ...                         */
1920
1921                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1922
1923                         if ((iptr->sx.val.i >= -4096) && (iptr->sx.val.i <= 4095)) {
1924                                 M_CMP_IMM(s1, iptr->sx.val.i);
1925                         }
1926                         else {
1927                                 ICONST(REG_ITMP2, iptr->sx.val.i);
1928                                 M_CMP(s1, REG_ITMP2);
1929                         }
1930                         emit_bge(cd, iptr->dst.block);
1931                         break;
1932
1933                 case ICMD_IF_LEQ:       /* ..., value ==> ...                         */
1934
1935                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1936                         if (iptr->sx.val.l == 0)
1937                                 emit_beqz(cd, iptr->dst.block, s1);
1938                         else {
1939                                 if ((iptr->sx.val.l >= -4096) && (iptr->sx.val.l <= 4095)) {
1940                                         M_CMP_IMM(s1, iptr->sx.val.l);
1941                                 }
1942                                 else {
1943                                         LCONST(REG_ITMP2, iptr->sx.val.l);
1944                                         M_CMP(s1, REG_ITMP2);
1945                                 }
1946                                 emit_beq_xcc(cd, iptr->dst.block);
1947                         }
1948                         break;
1949
1950                 case ICMD_IF_LLT:       /* ..., value ==> ...                         */
1951
1952                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1953                         if (iptr->sx.val.l == 0)
1954                                 emit_bltz(cd, iptr->dst.block, s1);
1955                         else {
1956                                 if ((iptr->sx.val.l >= -4096) && (iptr->sx.val.l <= 4095)) {
1957                                         M_CMP_IMM(s1, iptr->sx.val.l);
1958                                 }
1959                                 else {
1960                                         LCONST(REG_ITMP2, iptr->sx.val.l);
1961                                         M_CMP(s1, REG_ITMP2);
1962                                 }
1963                                 emit_blt_xcc(cd, iptr->dst.block);
1964                         }
1965                         break;
1966
1967                 case ICMD_IF_LLE:       /* ..., value ==> ...                         */
1968
1969                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1970                         if (iptr->sx.val.l == 0)
1971                                 emit_blez(cd, iptr->dst.block, s1);
1972                         else {
1973                                 if ((iptr->sx.val.l >= -4096) && (iptr->sx.val.l <= 4095)) {
1974                                         M_CMP_IMM(s1, iptr->sx.val.l);
1975                                 }
1976                                 else {
1977                                         LCONST(REG_ITMP2, iptr->sx.val.l);
1978                                         M_CMP(s1, REG_ITMP2);
1979                                 }
1980                                 emit_ble_xcc(cd, iptr->dst.block);
1981                         }
1982                         break;
1983
1984                 case ICMD_IF_LNE:       /* ..., value ==> ...                         */
1985
1986                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1987                         if (iptr->sx.val.l == 0)
1988                                 emit_bnez(cd, iptr->dst.block, s1);
1989                         else {
1990                                 if ((iptr->sx.val.l >= -4096) && (iptr->sx.val.l <= 4095)) {
1991                                         M_CMP_IMM(s1, iptr->sx.val.l);
1992                                 }
1993                                 else {
1994                                         LCONST(REG_ITMP2, iptr->sx.val.l);
1995                                         M_CMP(s1, REG_ITMP2);
1996                                 }
1997                                 emit_bne_xcc(cd, iptr->dst.block);
1998                         }
1999                         break;
2000
2001                 case ICMD_IF_LGT:       /* ..., value ==> ...                         */
2002
2003                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2004                         if (iptr->sx.val.l == 0)
2005                                 emit_bgtz(cd, iptr->dst.block, s1);
2006                         else {
2007                                 if ((iptr->sx.val.l >= -4096) && (iptr->sx.val.l <= 4095)) {
2008                                         M_CMP_IMM(s1, iptr->sx.val.l);
2009                                 }
2010                                 else {
2011                                         LCONST(REG_ITMP2, iptr->sx.val.l);
2012                                         M_CMP(s1, REG_ITMP2);
2013                                 }
2014                                 emit_bgt_xcc(cd, iptr->dst.block);
2015                         }
2016                         break;
2017
2018                 case ICMD_IF_LGE:       /* ..., value ==> ...                         */
2019
2020                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2021                         if (iptr->sx.val.l == 0)
2022                                 emit_bgez(cd, iptr->dst.block, s1);
2023                         else {
2024                                 if ((iptr->sx.val.l >= -4096) && (iptr->sx.val.l <= 4095)) {
2025                                         M_CMP_IMM(s1, iptr->sx.val.l);
2026                                 }
2027                                 else {
2028                                         LCONST(REG_ITMP2, iptr->sx.val.l);
2029                                         M_CMP(s1, REG_ITMP2);
2030                                 }
2031                                 emit_bge_xcc(cd, iptr->dst.block);
2032                         }
2033                         break;
2034
2035
2036                 case ICMD_IF_ACMPEQ:    /* ..., value, value ==> ...                  */
2037                 case ICMD_IF_LCMPEQ:    /* op1 = target JavaVM pc                     */
2038
2039                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2040                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2041                         M_CMP(s1, s2);
2042                         emit_beq_xcc(cd, iptr->dst.block);
2043                         break;
2044
2045                 case ICMD_IF_ICMPEQ:    /* 32-bit compare                             */
2046
2047                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2048                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2049                         M_CMP(s1, s2);
2050                         emit_beq(cd, iptr->dst.block);
2051                         break;
2052
2053                 case ICMD_IF_ACMPNE:    /* ..., value, value ==> ...                  */
2054                 case ICMD_IF_LCMPNE:    /* op1 = target JavaVM pc                     */
2055
2056                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2057                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2058                         M_CMP(s1, s2);
2059                         emit_bne_xcc(cd, iptr->dst.block);
2060                         break;
2061
2062                 case ICMD_IF_ICMPNE:    /* 32-bit compare                             */
2063
2064                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2065                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2066                         M_CMP(s1, s2);
2067                         emit_bne(cd, iptr->dst.block);
2068                         break;
2069
2070                 case ICMD_IF_LCMPLT:    /* ..., value, value ==> ...                  */
2071
2072                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2073                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2074                         M_CMP(s1, s2);
2075                         emit_blt_xcc(cd, iptr->dst.block);
2076                         break;
2077
2078                 case ICMD_IF_ICMPLT:    /* 32-bit compare                             */
2079
2080                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2081                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2082                         M_CMP(s1, s2);
2083                         emit_blt(cd, iptr->dst.block);
2084                         break;
2085
2086                 case ICMD_IF_LCMPGT:    /* ..., value, value ==> ...                  */
2087
2088                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2089                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2090                         M_CMP(s1, s2);
2091                         emit_bgt_xcc(cd, iptr->dst.block);
2092                         break;
2093
2094                 case ICMD_IF_ICMPGT:    /* 32-bit compare                             */
2095
2096                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2097                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2098                         M_CMP(s1, s2);
2099                         emit_bgt(cd, iptr->dst.block);
2100                         break;
2101
2102                 case ICMD_IF_LCMPLE:    /* ..., value, value ==> ...                  */
2103
2104                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2105                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2106                         M_CMP(s1, s2);
2107                         emit_ble_xcc(cd, iptr->dst.block);
2108                         break;
2109
2110                 case ICMD_IF_ICMPLE:    /* 32-bit compare                             */
2111
2112                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2113                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2114                         M_CMP(s1, s2);
2115                         emit_ble(cd, iptr->dst.block);
2116                         break;
2117
2118
2119                 case ICMD_IF_LCMPGE:    /* ..., value, value ==> ...                  */
2120
2121                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2122                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2123                         M_CMP(s1, s2);
2124                         emit_bge_xcc(cd, iptr->dst.block);
2125                         break;
2126
2127                 case ICMD_IF_ICMPGE:    /* 32-bit compare                             */
2128
2129                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2130                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2131                         M_CMP(s1, s2);
2132                         emit_bge(cd, iptr->dst.block);
2133                         break;
2134
2135
2136                 case ICMD_IRETURN:      /* ..., retvalue ==> ...                      */
2137                 case ICMD_LRETURN:
2138
2139                         s1 = emit_load_s1(jd, iptr, REG_RESULT_CALLEE);
2140                         M_INTMOVE(s1, REG_RESULT_CALLEE);
2141                         goto nowperformreturn;
2142
2143                 case ICMD_ARETURN:      /* ..., retvalue ==> ...                      */
2144
2145                         s1 = emit_load_s1(jd, iptr, REG_RESULT_CALLEE);
2146                         M_INTMOVE(s1, REG_RESULT_CALLEE);
2147
2148 #ifdef ENABLE_VERIFIER
2149                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2150                                 unresolved_class *uc = iptr->sx.s23.s2.uc;
2151
2152                                 codegen_add_patch_ref(cd, PATCHER_athrow_areturn, uc, 0);
2153                         }
2154 #endif /* ENABLE_VERIFIER */
2155                         goto nowperformreturn;
2156
2157                 case ICMD_FRETURN:      /* ..., retvalue ==> ...                      */
2158                 case ICMD_DRETURN:
2159
2160                         s1 = emit_load_s1(jd, iptr, REG_FRESULT);
2161                         M_DBLMOVE(s1, REG_FRESULT);
2162                         goto nowperformreturn;
2163
2164                 case ICMD_RETURN:       /* ...  ==> ...                               */
2165
2166 nowperformreturn:
2167                         {
2168                         s4 i, p;
2169
2170                         p = cd->stackframesize;
2171
2172 #if !defined(NDEBUG)
2173                         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
2174                                 emit_verbosecall_exit(jd);
2175 #endif
2176
2177 #if defined(ENABLE_THREADS)
2178                         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
2179 /* XXX: REG_RESULT is save, but what about FRESULT? */
2180                                 M_ALD(rd->argintregs[0], REG_SP, rd->memuse * 8); /* XXX: what for ? */
2181
2182                                 switch (iptr->opc) {
2183                                 case ICMD_FRETURN:
2184                                 case ICMD_DRETURN:
2185                                         M_DST(REG_FRESULT, REG_SP, rd->memuse * 8);
2186                                         break;
2187                                 }
2188
2189                                 disp = dseg_add_functionptr(cd, BUILTIN_monitorexit);
2190                                 M_ALD(REG_ITMP3, REG_PV, disp);
2191                                 M_JMP(REG_RA_CALLER, REG_ITMP3, REG_ZERO); /*REG_RA_CALLER */
2192
2193                                 switch (iptr->opc) {
2194                                 case ICMD_FRETURN:
2195                                 case ICMD_DRETURN:
2196                                         M_DLD(REG_FRESULT, REG_SP, rd->memuse * 8);
2197                                         break;
2198                                 }
2199                         }
2200 #endif
2201
2202
2203
2204                         M_RETURN(REG_RA_CALLEE, 8); /* implicit window restore */
2205                         M_NOP;
2206                         ALIGNCODENOP;
2207                         }
2208                         break;
2209
2210                 case ICMD_TABLESWITCH:  /* ..., index ==> ...                         */
2211                         {
2212                         s4 i, l;
2213                         branch_target_t *table;
2214
2215                         table = iptr->dst.table;
2216
2217                         l = iptr->sx.s23.s2.tablelow;
2218                         i = iptr->sx.s23.s3.tablehigh;
2219
2220                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2221                         if (l == 0) {
2222                                 M_INTMOVE(s1, REG_ITMP1);
2223                         }
2224                         else if (l <= 4095) {
2225                                 M_ADD_IMM(s1, -l, REG_ITMP1);
2226                         }
2227                         else {
2228                                 ICONST(REG_ITMP2, l);
2229                                 /* XXX: do I need to truncate s1 to 32-bit ? */
2230                                 M_SUB(s1, REG_ITMP2, REG_ITMP1);
2231                         }
2232                         i = i - l + 1;
2233
2234
2235                         /* range check */
2236
2237                         if (i <= 4095) {
2238                                 M_CMP_IMM(REG_ITMP1, i - 1);
2239                         }
2240                         else {
2241                                 ICONST(REG_ITMP2, i - 1);
2242                                 M_CMP(REG_ITMP1, REG_ITMP2);
2243                         }
2244                         emit_bugt(cd, table[0].block); /* default target */
2245
2246                         /* build jump table top down and use address of lowest entry */
2247
2248                         table += i;
2249
2250                         while (--i >= 0) {
2251                                 dseg_add_target(cd, table->block);
2252                                 --table;
2253                                 }
2254                         }
2255
2256                         /* length of dataseg after last dseg_addtarget is used by load */
2257
2258                         M_ASLL_IMM(REG_ITMP1, POINTERSHIFT, REG_ITMP1);
2259                         M_AADD(REG_ITMP1, REG_PV, REG_ITMP2);
2260                         M_ALD(REG_ITMP2, REG_ITMP2, -(cd->dseglen));
2261                         M_JMP(REG_ZERO, REG_ITMP2, REG_ZERO);
2262                         M_NOP;
2263                         ALIGNCODENOP;
2264                         break;
2265
2266                 case ICMD_LOOKUPSWITCH: /* ..., key ==> ...                           */
2267                         {
2268                         s4 i;
2269                         lookup_target_t *lookup;
2270
2271                         lookup = iptr->dst.lookup;
2272
2273                         i = iptr->sx.s23.s2.lookupcount;
2274
2275                         MCODECHECK((i<<2)+8);
2276                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2277
2278                         while (--i >= 0) {
2279                                 if ((lookup->value >= -4096) && (lookup->value <= 4095)) {
2280                                         M_CMP_IMM(s1, lookup->value);
2281                                 } else {
2282                                         ICONST(REG_ITMP2, lookup->value);
2283                                         M_CMP(s1, REG_ITMP2);
2284                                 }
2285                                 emit_beq(cd, lookup->target.block);
2286                                 ++lookup;
2287                         }
2288
2289                         emit_br(cd, iptr->sx.s23.s3.lookupdefault.block);
2290                         ALIGNCODENOP;
2291                         break;
2292                         }
2293
2294
2295                 case ICMD_BUILTIN:      /* ..., arg1, arg2, arg3 ==> ...              */
2296
2297                         bte = iptr->sx.s23.s3.bte;
2298                         md = bte->md;
2299
2300                         /* XXX: builtin calling with stack arguments not implemented */
2301                         assert(md->paramcount <= 5 && md->argfltreguse <= 16);
2302
2303                         s3 = md->paramcount;
2304
2305                         MCODECHECK((s3 << 1) + 64);
2306
2307                         /* copy float arguments according to ABI convention */
2308
2309                         int num_fltregargs = 0;
2310                         int fltregarg_inswap[16];
2311
2312                         for (s3 = s3 - 1; s3 >= 0; s3--) {
2313                                 var = VAR(iptr->sx.s23.s2.args[s3]);
2314
2315                                 if (var->flags & PREALLOC)
2316                                         continue;
2317
2318                                 if (IS_FLT_DBL_TYPE(var->type)) {
2319                                         if (!md->params[s3].inmemory) {
2320                                                 s1 = md->params[s3].regoff; /*native flt args use regoff directly*/
2321                                                 d = emit_load(jd, iptr, var, REG_FTMP1);
2322
2323                                                 M_DMOV(d, s1 + 16);
2324                                                 fltregarg_inswap[num_fltregargs] = s1;
2325                                                 num_fltregargs++;
2326                                                 /*printf("builtin: flt arg swap to %d\n", s1 + 16);*/
2327                                         }
2328                                         else {
2329                                                 assert(0);
2330                                         }
2331                                 }
2332                         }
2333
2334                         int i;
2335                         /* move swapped float args to target regs */
2336                         for (i = 0; i < num_fltregargs; i++) {
2337                                 s1 = fltregarg_inswap[i];
2338                                 M_DMOV(s1 + 16, s1);
2339                                 /*printf("builtin float arg to target reg: %d ==> %d\n", s1+16, s1);*/
2340                         }
2341
2342                         goto gen_method;
2343
2344                 case ICMD_INVOKESTATIC: /* ..., [arg1, [arg2 ...]] ==> ...            */
2345
2346                 case ICMD_INVOKESPECIAL:/* ..., objectref, [arg1, [arg2 ...]] ==> ... */
2347                 case ICMD_INVOKEVIRTUAL:/* op1 = arg count, val.a = method pointer    */
2348                 case ICMD_INVOKEINTERFACE:
2349
2350                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2351                                 lm = NULL;
2352                                 um = iptr->sx.s23.s3.um;
2353                                 md = um->methodref->parseddesc.md;
2354                         }
2355                         else {
2356                                 lm = iptr->sx.s23.s3.fmiref->p.method;
2357                                 um = NULL;
2358                                 md = lm->parseddesc;
2359                         }
2360
2361 gen_method:
2362                         s3 = md->paramcount;
2363
2364                         MCODECHECK((s3 << 1) + 64);
2365
2366                         /* copy arguments to registers or stack location                  */
2367
2368                         for (s3 = s3 - 1; s3 >= 0; s3--) {
2369                                 var = VAR(iptr->sx.s23.s2.args[s3]);
2370
2371                                 if (var->flags & PREALLOC)
2372                                         continue;
2373
2374                                 if (IS_INT_LNG_TYPE(var->type)) {
2375                                         if (!md->params[s3].inmemory) {
2376                                                 s1 = rd->argintregs[md->params[s3].regoff];
2377                                                 d = emit_load(jd, iptr, var, s1);
2378                                                 M_INTMOVE(d, s1);
2379                                         }
2380                                         else {
2381                                                 d = emit_load(jd, iptr, var, REG_ITMP1);
2382                                                 M_STX(d, REG_SP, JITSTACK + md->params[s3].regoff * 8);
2383                                         }
2384                                 }
2385                                 else {
2386                                         if (iptr->opc == ICMD_BUILTIN)
2387                                                 continue;
2388
2389                                         if (!md->params[s3].inmemory) {
2390                                                 s1 = rd->argfltregs[md->params[s3].regoff];
2391                                                 d = emit_load(jd, iptr, var, s1);
2392                                                 if (IS_2_WORD_TYPE(var->type))
2393                                                         M_DMOV(d, s1);
2394                                                 else
2395                                                         M_FMOV(d, s1);
2396                                         }
2397                                         else {
2398                                                 d = emit_load(jd, iptr, var, REG_FTMP1);
2399                                                 if (IS_2_WORD_TYPE(var->type))
2400                                                         M_DST(d, REG_SP, JITSTACK + md->params[s3].regoff * 8);
2401                                                 else
2402                                                         M_FST(d, REG_SP, JITSTACK + md->params[s3].regoff * 8);
2403                                         }
2404                                 }
2405                         }
2406
2407                         switch (iptr->opc) {
2408                         case ICMD_BUILTIN:
2409                                 disp = dseg_add_functionptr(cd, bte->fp);
2410
2411                                 M_ALD(REG_PV_CALLER, REG_PV, disp);  /* built-in-function pointer */
2412
2413                                 /* XXX jit-c-call */
2414                                 /* generate the actual call */
2415
2416                             M_JMP(REG_RA_CALLER, REG_PV_CALLER, REG_ZERO);
2417                             M_NOP;
2418                             disp = (s4) (cd->mcodeptr - cd->mcodebase);
2419                             /* REG_RA holds the value of the jmp instruction, therefore +8 */
2420                             M_LDA(REG_ZERO, REG_RA_CALLER, -disp + 8);
2421
2422                                 emit_exception_check(cd, iptr);
2423                                 if (md->returntype.type == TYPE_FLT) {
2424                                         /* special handling for float return value in %f0 */
2425                                         M_FMOV_INTERN(0,1);
2426                                 }
2427                                 break;
2428
2429                         case ICMD_INVOKESPECIAL:
2430                                 emit_nullpointer_check(cd, iptr, REG_OUT0);
2431                                 /* fall-through */
2432
2433                         case ICMD_INVOKESTATIC:
2434                                 if (lm == NULL) {
2435                                         disp = dseg_add_unique_address(cd, NULL);
2436
2437                                         codegen_add_patch_ref(cd, PATCHER_invokestatic_special,
2438                                                                                 um, disp);
2439                                 }
2440                                 else
2441                                         disp = dseg_add_address(cd, lm->stubroutine);
2442
2443                                 M_ALD(REG_PV_CALLER, REG_PV, disp);          /* method pointer in pv */
2444
2445                                 /* generate the actual call */
2446
2447                             M_JMP(REG_RA_CALLER, REG_PV_CALLER, REG_ZERO);
2448                             M_NOP;
2449                             disp = (s4) (cd->mcodeptr - cd->mcodebase);
2450                             /* REG_RA holds the value of the jmp instruction, therefore +8 */
2451                             M_LDA(REG_ZERO, REG_RA_CALLER, -disp + 8);
2452                                 break;
2453
2454                         case ICMD_INVOKEVIRTUAL:
2455                                 emit_nullpointer_check(cd, iptr, REG_OUT0);
2456
2457                                 if (lm == NULL) {
2458                                         codegen_add_patch_ref(cd, PATCHER_invokevirtual, um, 0);
2459
2460                                         s1 = 0;
2461                                 }
2462                                 else
2463                                         s1 = OFFSET(vftbl_t, table[0]) +
2464                                                 sizeof(methodptr) * lm->vftblindex;
2465
2466                                 /* implicit null-pointer check */
2467                                 M_ALD(REG_METHODPTR, REG_OUT0,OFFSET(java_objectheader, vftbl));
2468                                 M_ALD(REG_PV_CALLER, REG_METHODPTR, s1);
2469
2470                                 /* generate the actual call */
2471
2472                             M_JMP(REG_RA_CALLER, REG_PV_CALLER, REG_ZERO);
2473                             M_NOP;
2474                             disp = (s4) (cd->mcodeptr - cd->mcodebase);
2475                             /* REG_RA holds the value of the jmp instruction, therefore +8 */
2476                             M_LDA(REG_ZERO, REG_RA_CALLER, -disp + 8);
2477                                 break;
2478
2479                         case ICMD_INVOKEINTERFACE:
2480                                 emit_nullpointer_check(cd, iptr, REG_OUT0);
2481
2482                                 if (lm == NULL) {
2483                                         codegen_add_patch_ref(cd, PATCHER_invokeinterface, um, 0);
2484
2485                                         s1 = 0;
2486                                         s2 = 0;
2487                                 }
2488                                 else {
2489                                         s1 = OFFSET(vftbl_t, interfacetable[0]) -
2490                                                 sizeof(methodptr*) * lm->class->index;
2491
2492                                         s2 = sizeof(methodptr) * (lm - lm->class->methods);
2493                                 }
2494
2495                                 /* implicit null-pointer check */
2496                                 M_ALD(REG_METHODPTR, REG_OUT0, OFFSET(java_objectheader, vftbl));
2497                                 M_ALD(REG_METHODPTR, REG_METHODPTR, s1);
2498                                 M_ALD(REG_PV_CALLER, REG_METHODPTR, s2);
2499
2500                             /* generate the actual call */
2501
2502                             M_JMP(REG_RA_CALLER, REG_PV_CALLER, REG_ZERO);
2503                             M_NOP;
2504                             disp = (s4) (cd->mcodeptr - cd->mcodebase);
2505                             /* REG_RA holds the value of the jmp instruction, therefore +8 */
2506                             M_LDA(REG_ZERO, REG_RA_CALLER, -disp + 8);
2507                                 break;
2508                         }
2509
2510                         /* store return value */
2511
2512                         d = md->returntype.type;
2513
2514                         if (d != TYPE_VOID) {
2515                                 if (IS_INT_LNG_TYPE(d)) {
2516                                         s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT_CALLER);
2517                                         M_INTMOVE(REG_RESULT_CALLER, s1);
2518                                 }
2519                                 else {
2520                                         s1 = codegen_reg_of_dst(jd, iptr, REG_FRESULT);
2521                                         if (IS_2_WORD_TYPE(d)) {
2522                                                 M_DBLMOVE(REG_FRESULT, s1);
2523                                         } else {
2524                                                 M_FLTMOVE(REG_FRESULT, s1);
2525                                         }
2526                                 }
2527                                 emit_store_dst(jd, iptr, s1);
2528                         }
2529                         break;
2530
2531
2532                 case ICMD_CHECKCAST:  /* ..., objectref ==> ..., objectref            */
2533                                       /* val.a: (classinfo*) superclass               */
2534
2535                         /*  superclass is an interface:
2536                          *
2537                          *  OK if ((sub == NULL) ||
2538                          *         (sub->vftbl->interfacetablelength > super->index) &&
2539                          *         (sub->vftbl->interfacetable[-super->index] != NULL));
2540                          *
2541                          *  superclass is a class:
2542                          *
2543                          *  OK if ((sub == NULL) || (0
2544                          *         <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2545                          *         super->vftbl->diffvall));
2546                          */
2547
2548                         if (!(iptr->flags.bits & INS_FLAG_ARRAY)) {
2549                                 classinfo *super;
2550                                 s4         superindex;
2551
2552                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2553                                         super      = NULL;
2554                                         superindex = 0;
2555                                 }
2556                                 else {
2557                                         super = iptr->sx.s23.s3.c.cls;
2558                                         superindex = super->index;
2559                                 }
2560
2561 #if defined(ENABLE_THREADS)
2562                                 codegen_threadcritrestart(cd, cd->mcodeptr - cd->mcodebase);
2563 #endif
2564
2565                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2566
2567                                 /* if class is not resolved, check which code to call */
2568
2569                                 if (super == NULL) {
2570                                         emit_label_beqz(cd, BRANCH_LABEL_1, s1);
2571
2572                                         cr   = iptr->sx.s23.s3.c.ref;
2573                                         disp = dseg_add_unique_s4(cd, 0);         /* super->flags */
2574
2575                                         codegen_add_patch_ref(cd, PATCHER_checkcast_instanceof_flags,
2576                                                                                   cr, disp);
2577
2578                                         M_ILD(REG_ITMP2, REG_PV, disp);
2579                                         M_AND_IMM(REG_ITMP2, ACC_INTERFACE, REG_ITMP2);
2580                                         emit_label_beqz(cd, BRANCH_LABEL_2, REG_ITMP2);
2581                                 }
2582
2583                                 /* interface checkcast code */
2584
2585                                 if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2586                                         if (super == NULL) {
2587                                                 cr = iptr->sx.s23.s3.c.ref;
2588
2589                                                 codegen_add_patch_ref(cd, PATCHER_checkcast_interface,
2590                                                                                           cr, 0);
2591                                         }
2592                                         else {
2593                                                 emit_label_beqz(cd, BRANCH_LABEL_3, s1);
2594                                         }
2595
2596                                         M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2597                                         M_ILD(REG_ITMP3, REG_ITMP2,
2598                                                         OFFSET(vftbl_t, interfacetablelength));
2599                                         M_ADD_IMM(REG_ITMP3, -superindex, REG_ITMP3);
2600                                         emit_classcast_check(cd, iptr, ICMD_IFLE, REG_ITMP3, s1);
2601
2602                                         M_ALD(REG_ITMP3, REG_ITMP2,
2603                                                   OFFSET(vftbl_t, interfacetable[0]) -
2604                                                   superindex * sizeof(methodptr*));
2605                                         emit_classcast_check(cd, iptr, ICMD_IFEQ, REG_ITMP3, s1);
2606
2607                                         if (super == NULL)
2608                                                 emit_label_br(cd, BRANCH_LABEL_4);
2609                                         else
2610                                                 emit_label(cd, BRANCH_LABEL_3);
2611                                 }
2612
2613                                 /* class checkcast code */
2614
2615                                 if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2616                                         if (super == NULL) {
2617                                                 emit_label(cd, BRANCH_LABEL_2);
2618
2619                                                 cr   = iptr->sx.s23.s3.c.ref;
2620                                                 disp = dseg_add_unique_address(cd, NULL);
2621
2622                                                 codegen_add_patch_ref(cd,
2623                                                                                         PATCHER_checkcast_instanceof_class,
2624                                                                                           cr, disp);
2625                                         }
2626                                         else {
2627                                                 disp = dseg_add_address(cd, super->vftbl);
2628
2629                                                 emit_label_beqz(cd, BRANCH_LABEL_5, s1);
2630                                         }
2631
2632                                         M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2633                                         M_ALD(REG_ITMP3, REG_PV, disp);
2634 #if defined(ENABLE_THREADS)
2635                                         codegen_threadcritstart(cd, cd->mcodeptr - cd->mcodebase);
2636 #endif
2637                                         M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, baseval));
2638                                         M_ILD(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, baseval));
2639                                         M_SUB(REG_ITMP2, REG_ITMP3, REG_ITMP2);
2640                                         M_ALD(REG_ITMP3, REG_PV, disp);
2641                                         M_ILD(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, diffval));
2642 #if defined(ENABLE_THREADS)
2643                                         codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2644 #endif
2645                                         /*                              } */
2646                                         M_CMP(REG_ITMP3, REG_ITMP2);
2647                                         emit_classcast_check(cd, iptr, BRANCH_ULT, REG_ITMP3, s1);
2648
2649                                         if (super != NULL)
2650                                                 emit_label(cd, BRANCH_LABEL_5);
2651                                 }
2652
2653                                 if (super == NULL) {
2654                                         emit_label(cd, BRANCH_LABEL_1);
2655                                         emit_label(cd, BRANCH_LABEL_4);
2656                                 }
2657
2658                                 d = codegen_reg_of_dst(jd, iptr, s1);
2659                         }
2660                         else {
2661                                 /* array type cast-check */
2662
2663                                 s1 = emit_load_s1(jd, iptr, rd->argintregs[0]);
2664                                 M_INTMOVE(s1, rd->argintregs[0]);
2665
2666                                 disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2667
2668                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2669                                         cr   = iptr->sx.s23.s3.c.ref;
2670                                         disp = dseg_add_unique_address(cd, NULL);
2671
2672                                         codegen_add_patch_ref(cd, PATCHER_builtin_arraycheckcast,
2673                                                                                   cr, disp);
2674                                 }
2675                                 else
2676                                         disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2677
2678                                 M_ALD(rd->argintregs[1], REG_PV, disp);
2679                                 disp = dseg_add_functionptr(cd, BUILTIN_arraycheckcast);
2680                                 M_ALD(REG_ITMP3, REG_PV, disp);
2681                                 /* XXX jit-c-call */
2682                                 M_JMP(REG_RA_CALLER, REG_ITMP3, REG_ZERO);
2683                                 M_NOP;
2684
2685                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2686                                 emit_classcast_check(cd, iptr, ICMD_IFEQ, REG_RESULT_CALLER, s1);
2687
2688                                 d = codegen_reg_of_dst(jd, iptr, s1);
2689                         }
2690
2691                         M_INTMOVE(s1, d);
2692                         emit_store_dst(jd, iptr, d);
2693                         break;
2694
2695                 case ICMD_INSTANCEOF: /* ..., objectref ==> ..., intresult            */
2696                                       /* val.a: (classinfo*) superclass               */
2697
2698                         /*  superclass is an interface:
2699                          *
2700                          *  return (sub != NULL) &&
2701                          *         (sub->vftbl->interfacetablelength > super->index) &&
2702                          *         (sub->vftbl->interfacetable[-super->index] != NULL);
2703                          *
2704                          *  superclass is a class:
2705                          *
2706                          *  return ((sub != NULL) && (0
2707                          *          <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2708                          *          super->vftbl->diffvall));
2709                          */
2710
2711                         {
2712                         classinfo *super;
2713                         vftbl_t   *supervftbl;
2714                         s4         superindex;
2715
2716                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2717                                 super = NULL;
2718                                 superindex = 0;
2719                                 supervftbl = NULL;
2720
2721                         } else {
2722                                 super = iptr->sx.s23.s3.c.cls;
2723                                 superindex = super->index;
2724                                 supervftbl = super->vftbl;
2725                         }
2726
2727 #if defined(ENABLE_THREADS)
2728                         codegen_threadcritrestart(cd, cd->mcodeptr - cd->mcodebase);
2729 #endif
2730                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2731                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
2732                         if (s1 == d) {
2733                                 M_MOV(s1, REG_ITMP1);
2734                                 s1 = REG_ITMP1;
2735                         }
2736
2737                         M_CLR(d);
2738
2739                         /* if class is not resolved, check which code to call */
2740
2741                         if (super == NULL) {
2742                                 emit_label_beqz(cd, BRANCH_LABEL_1, s1);
2743
2744                                 cr   = iptr->sx.s23.s3.c.ref;
2745                                 disp = dseg_add_unique_s4(cd, 0);             /* super->flags */
2746
2747                                 codegen_add_patch_ref(cd, PATCHER_checkcast_instanceof_flags,
2748                                                                           cr, disp);
2749
2750                                 M_ILD(REG_ITMP3, REG_PV, disp);
2751                                 M_AND_IMM(REG_ITMP3, ACC_INTERFACE, REG_ITMP3);
2752                                 emit_label_beqz(cd, BRANCH_LABEL_2, REG_ITMP3);
2753                         }
2754
2755                         /* interface instanceof code */
2756
2757                         if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2758                                 if (super == NULL) {
2759                                         cr = iptr->sx.s23.s3.c.ref;
2760
2761                                         codegen_add_patch_ref(cd, PATCHER_instanceof_interface,
2762                                                                                   cr, 0);
2763                                 }
2764                                 else {
2765                                         emit_label_beqz(cd, BRANCH_LABEL_3, s1);
2766                                 }
2767
2768                                 M_ALD(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
2769                                 M_ILD(REG_ITMP3, REG_ITMP1, OFFSET(vftbl_t, interfacetablelength));
2770                                 M_CMP_IMM(REG_ITMP3, superindex);
2771                                 M_BLE(4);
2772                                 M_NOP;
2773                                 M_ALD(REG_ITMP1, REG_ITMP1,
2774                                           (s4) (OFFSET(vftbl_t, interfacetable[0]) -
2775                                                         superindex * sizeof(methodptr*)));
2776                                 M_CMOVRNE_IMM(REG_ITMP1, 1, d);      /* REG_ITMP1 != 0  */
2777
2778                                 if (super == NULL)
2779                                         emit_label_br(cd, BRANCH_LABEL_4);
2780                                 else
2781                                         emit_label(cd, BRANCH_LABEL_3);
2782                         }
2783
2784                         /* class instanceof code */
2785
2786                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2787                                 if (super == NULL) {
2788                                         emit_label(cd, BRANCH_LABEL_2);
2789
2790                                         cr   = iptr->sx.s23.s3.c.ref;
2791                                         disp = dseg_add_unique_address(cd, NULL);
2792
2793                                         codegen_add_patch_ref(cd, PATCHER_checkcast_instanceof_class,
2794                                                                                   cr, disp);
2795                                 }
2796                                 else {
2797                                         disp = dseg_add_address(cd, supervftbl);
2798
2799                                         emit_label_beqz(cd, BRANCH_LABEL_5, s1);
2800                                 }
2801
2802                                 M_ALD(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
2803                                 M_ALD(REG_ITMP2, REG_PV, disp);
2804 #if defined(ENABLE_THREADS)
2805                                 codegen_threadcritstart(cd, cd->mcodeptr - cd->mcodebase);
2806 #endif
2807                                 M_ILD(REG_ITMP1, REG_ITMP1, OFFSET(vftbl_t, baseval));
2808                                 M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2809                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2810 #if defined(ENABLE_THREADS)
2811                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2812 #endif
2813                                 M_SUB(REG_ITMP1, REG_ITMP3, REG_ITMP1);
2814                                 M_CMP(REG_ITMP1, REG_ITMP2);
2815                                 M_XCMOVULE_IMM(1, d);
2816
2817                                 if (super != NULL)
2818                                         emit_label(cd, BRANCH_LABEL_5);
2819                         }
2820
2821                         if (super == NULL) {
2822                                 emit_label(cd, BRANCH_LABEL_1);
2823                                 emit_label(cd, BRANCH_LABEL_4);
2824                         }
2825
2826                         emit_store_dst(jd, iptr, d);
2827                         }
2828                         break;
2829
2830                 case ICMD_MULTIANEWARRAY:/* ..., cnt1, [cnt2, ...] ==> ..., arrayref  */
2831
2832                         /* check for negative sizes and copy sizes to stack if necessary  */
2833
2834                         MCODECHECK((iptr->s1.argcount << 1) + 64);
2835
2836                         for (s1 = iptr->s1.argcount; --s1 >= 0; ) {
2837
2838                                 var = VAR(iptr->sx.s23.s2.args[s1]);
2839
2840                                 /* copy SAVEDVAR sizes to stack */
2841
2842                                 /* Already Preallocated? */
2843
2844                                 if (!(var->flags & PREALLOC)) {
2845                                         s2 = emit_load(jd, iptr, var, REG_ITMP1);
2846                                         M_STX(s2, REG_SP, CSTACK + (s1 * 8));
2847                                 }
2848                         }
2849
2850                         /* arg 0 = dimension count */
2851
2852                         ICONST(REG_OUT0, iptr->s1.argcount);
2853
2854                         /* is patcher function set? */
2855
2856                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2857                                 disp = dseg_add_unique_address(cd, 0);
2858
2859                                 codegen_add_patch_ref(cd, PATCHER_builtin_multianewarray,
2860                                                                           iptr->sx.s23.s3.c.ref,
2861                                                                           disp);
2862                         }
2863                         else
2864                                 disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2865
2866                         /* arg 1 = arraydescriptor */
2867
2868                         M_ALD(REG_OUT1, REG_PV, disp);
2869
2870                         /* arg 2 = pointer to dimensions = stack pointer (absolute) */
2871
2872                         M_ADD_IMM(REG_SP, CSTACK, REG_OUT2);
2873
2874                         /* XXX c abi call */
2875                         disp = dseg_add_functionptr(cd, BUILTIN_multianewarray);
2876                         M_ALD(REG_ITMP3, REG_PV, disp);
2877                         M_JMP(REG_RA_CALLER, REG_ITMP3, REG_ZERO);
2878                         M_NOP;
2879
2880                         /* check for exception before result assignment */
2881
2882                         emit_exception_check(cd, iptr);
2883
2884                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT_CALLER);
2885                         M_INTMOVE(REG_RESULT_CALLER, d);
2886                         emit_store_dst(jd, iptr, d);
2887                         break;
2888
2889                 default:
2890                         exceptions_throw_internalerror("Unknown ICMD %d during code generation",
2891                                                                                    iptr->opc);
2892                         return false;
2893
2894         } /* switch */
2895
2896         } /* for instruction */
2897
2898
2899
2900         } /* if (bptr -> flags >= BBREACHED) */
2901         } /* for basic block */
2902
2903         dseg_createlinenumbertable(cd);
2904
2905         /* generate stubs */
2906
2907         emit_patcher_stubs(jd);
2908         REPLACEMENT_EMIT_STUBS(jd);
2909
2910         /* everything's ok */
2911
2912         return true;
2913 }
2914
2915
2916 /* createcompilerstub **********************************************************
2917
2918    Creates a stub routine which calls the compiler.
2919
2920 *******************************************************************************/
2921
2922 #define COMPILERSTUB_DATASIZE    3 * SIZEOF_VOID_P
2923 #define COMPILERSTUB_CODESIZE    4 * 4
2924
2925 #define COMPILERSTUB_SIZE        COMPILERSTUB_DATASIZE + COMPILERSTUB_CODESIZE
2926
2927
2928 u1 *createcompilerstub(methodinfo *m)
2929 {
2930         u1     *s;                          /* memory to hold the stub            */
2931         ptrint      *d;
2932         codeinfo    *code;
2933         codegendata *cd;
2934         s4           dumpsize;
2935
2936         s = CNEW(u1, COMPILERSTUB_SIZE);
2937
2938         /* set data pointer and code pointer */
2939
2940         d = (ptrint *) s;
2941         s = s + COMPILERSTUB_DATASIZE;
2942
2943         /* mark start of dump memory area */
2944
2945         dumpsize = dump_size();
2946
2947         cd = DNEW(codegendata);
2948         cd->mcodeptr = s;
2949
2950         /* Store the codeinfo pointer in the same place as in the
2951            methodheader for compiled methods. */
2952
2953         code = code_codeinfo_new(m);
2954
2955         d[0] = (ptrint) asm_call_jit_compiler;
2956         d[1] = (ptrint) m;
2957         d[2] = (ptrint) code;
2958
2959         /* code for the stub */
2960         /* no window save yet, user caller's PV */
2961         M_ALD_INTERN(REG_ITMP1, REG_PV_CALLER, -2 * SIZEOF_VOID_P);  /* codeinfo pointer */
2962         M_ALD_INTERN(REG_PV_CALLER, REG_PV_CALLER, -3 * SIZEOF_VOID_P);  /* pointer to compiler */
2963         M_JMP(REG_ZERO, REG_PV_CALLER, REG_ZERO);  /* jump to the compiler, RA is wasted */
2964         M_NOP;
2965
2966 #if defined(ENABLE_STATISTICS)
2967         if (opt_stat)
2968                 count_cstub_len += COMPILERSTUB_SIZE;
2969 #endif
2970
2971         /* release dump area */
2972
2973         dump_release(dumpsize);
2974
2975         return s;
2976 }
2977
2978
2979
2980 /* createnativestub ************************************************************
2981
2982    Creates a stub routine which calls a native method.
2983
2984 *******************************************************************************/
2985
2986 u1 *createnativestub(functionptr f, jitdata *jd, methoddesc *nmd)
2987 {
2988         methodinfo   *m;
2989         codeinfo     *code;
2990         codegendata  *cd;
2991         registerdata *rd;
2992         methoddesc   *md;
2993         s4            nativeparams;
2994         s4            i, j;                 /* count variables                    */
2995         s4            t;
2996         s4            s1, s2, disp;
2997         s4            funcdisp;             /* displacement of the function       */
2998
2999         /* get required compiler data */
3000
3001         m    = jd->m;
3002         code = jd->code;
3003         cd   = jd->cd;
3004         rd   = jd->rd;
3005
3006         /* initialize variables */
3007
3008         md = m->parseddesc;
3009         nativeparams = (m->flags & ACC_STATIC) ? 2 : 1;
3010
3011         /* calculate stack frame size */
3012
3013         cd->stackframesize =
3014                 sizeof(stackframeinfo) / SIZEOF_VOID_P +
3015                 sizeof(localref_table) / SIZEOF_VOID_P +
3016                 md->paramcount +                /* for saving arguments over calls    */
3017                 nmd->memuse +  /* nmd knows about the native stackframe layout */
3018                 WINSAVE_CNT;
3019
3020         /* create method header */
3021
3022         (void) dseg_add_unique_address(cd, code);              /* CodeinfoPointer */
3023         (void) dseg_add_unique_s4(cd, cd->stackframesize * 8); /* FrameSize       */
3024         (void) dseg_add_unique_s4(cd, 0);                      /* IsSync          */
3025         (void) dseg_add_unique_s4(cd, 0);                      /* IsLeaf          */
3026         (void) dseg_add_unique_s4(cd, 0);                      /* IntSave         */
3027         (void) dseg_add_unique_s4(cd, 0);                      /* FltSave         */
3028         (void) dseg_addlinenumbertablesize(cd);
3029         (void) dseg_add_unique_s4(cd, 0);                      /* ExTableSize     */
3030
3031         /* generate stub code */
3032
3033         M_SAVE(REG_SP, -cd->stackframesize * 8, REG_SP); /* build up stackframe    */
3034
3035 #if !defined(NDEBUG)
3036         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
3037                 emit_verbosecall_enter(jd);
3038 #endif
3039
3040         /* get function address (this must happen before the stackframeinfo) */
3041
3042         funcdisp = dseg_add_functionptr(cd, f);
3043
3044 #if !defined(WITH_STATIC_CLASSPATH)
3045         if (f == NULL) {
3046                 codegen_add_patch_ref(cd, PATCHER_resolve_native, m, funcdisp);
3047         }
3048 #endif
3049
3050         /* save float argument registers */
3051
3052         for (i = 0, j = 0; i < md->paramcount && i < FLT_ARG_CNT; i++) {
3053                 if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
3054                         M_DST(rd->argfltregs[i], REG_SP, CSTACK + (j * 8));
3055                         j++;
3056                 }
3057         }
3058
3059         /* prepare data structures for native function call */
3060
3061         M_ADD_IMM(REG_FP, BIAS, REG_OUT0); /* datasp == top of the stack frame (absolute == +BIAS) */
3062         M_MOV(REG_PV_CALLEE, REG_OUT1);
3063         M_MOV(REG_FP, REG_OUT2); /* java sp */
3064         M_MOV(REG_RA_CALLEE, REG_OUT3);
3065         disp = dseg_add_functionptr(cd, codegen_start_native_call);
3066         M_ALD(REG_ITMP3, REG_PV_CALLEE, disp);
3067         M_JMP(REG_RA_CALLER, REG_ITMP3, REG_ZERO);
3068         M_NOP; /* XXX fill me! */
3069
3070         /* restore float argument registers */
3071
3072         for (i = 0, j = 0; i < md->paramcount && i < FLT_ARG_CNT; i++) {
3073                 if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
3074                         M_DLD(rd->argfltregs[i], REG_SP, CSTACK + (j * 8));
3075                         j++;
3076                 }
3077         }
3078
3079         /* copy or spill arguments to new locations */
3080         int num_fltregargs = 0;
3081         int fltregarg_inswap[16];
3082         for (i = md->paramcount - 1, j = i + nativeparams; i >= 0; i--, j--) {
3083                 t = md->paramtypes[i].type;
3084
3085                 if (IS_INT_LNG_TYPE(t)) {
3086                         if (!md->params[i].inmemory) {
3087                                 s1 = rd->argintregs[md->params[i].regoff];
3088                                 /* s1 refers to the old window, transpose */
3089                                 s1 = REG_WINDOW_TRANSPOSE(s1);
3090
3091                                 if (!nmd->params[j].inmemory) {
3092                                         s2 = nat_argintregs[nmd->params[j].regoff];
3093                                         M_INTMOVE(s1, s2);
3094                                 } else {
3095                                         s2 = nmd->params[j].regoff - 6;
3096                                         M_AST(s1, REG_SP, CSTACK + s2 * 8);
3097                                 }
3098
3099                         } else {
3100                                 s1 = md->params[i].regoff + cd->stackframesize;
3101                                 s2 = nmd->params[j].regoff - 6;
3102                                 M_ALD(REG_ITMP1, REG_SP, CSTACK + s1 * 8);
3103                                 M_AST(REG_ITMP1, REG_SP, CSTACK + s2 * 8);
3104                         }
3105
3106                 } else {
3107                         if (!md->params[i].inmemory) {
3108                                 s1 = rd->argfltregs[md->params[i].regoff];
3109
3110                                 if (!nmd->params[j].inmemory) {
3111                                         /* no mapping to regs needed, native flt args use regoff */
3112                                         s2 = nmd->params[j].regoff;
3113
3114                                         /* we cannot move flt regs to their native arg locations directly */
3115                                         M_DMOV(s1, s2 + 16);
3116                                         fltregarg_inswap[num_fltregargs] = s2;
3117                                         num_fltregargs++;
3118                                         /*printf("flt arg swap to %d\n", s2 + 16);*/
3119
3120                                 } else {
3121                                         s2 = nmd->params[j].regoff;
3122                                         if (IS_2_WORD_TYPE(t))
3123                                                 M_DST(s1, REG_SP, CSTACK + (s2 * 8));
3124                                         else
3125                                                 M_FST(s1, REG_SP, CSTACK + (s2 * 8));
3126                                 }
3127
3128                         } else {
3129                                 s1 = md->params[i].regoff + cd->stackframesize;
3130                                 s2 = nmd->params[j].regoff - 6;
3131                                 if (IS_2_WORD_TYPE(t)) {
3132                                         M_DLD(REG_FTMP1, REG_SP, CSTACK + s1 * 8);
3133                                         M_DST(REG_FTMP1, REG_SP, CSTACK + s2 * 8);
3134                                 } else {
3135                                         M_FLD(REG_FTMP1, REG_SP, CSTACK + s1 * 8);
3136                                         M_FST(REG_FTMP1, REG_SP, CSTACK + s2 * 8);
3137                                 }
3138                         }
3139                 }
3140         }
3141
3142         /* move swapped float args to target regs */
3143         for (i = 0; i < num_fltregargs; i++) {
3144                 s1 = fltregarg_inswap[i];
3145                 M_DMOV(s1 + 16, s1);
3146                 /*printf("float arg to target reg: %d ==> %d\n", s1+16, s1);*/
3147         }
3148
3149
3150         /* put class into second argument register */
3151
3152         if (m->flags & ACC_STATIC) {
3153                 disp = dseg_add_address(cd, m->class);
3154                 M_ALD(REG_OUT1, REG_PV_CALLEE, disp);
3155         }
3156
3157         /* put env into first argument register */
3158
3159         disp = dseg_add_address(cd, _Jv_env);
3160         M_ALD(REG_OUT0, REG_PV_CALLEE, disp);
3161
3162         /* do the native function call */
3163
3164         M_ALD(REG_ITMP3, REG_PV_CALLEE, funcdisp); /* load adress of native method       */
3165         M_JMP(REG_RA_CALLER, REG_ITMP3, REG_ZERO); /* call native method                 */
3166         M_NOP;                              /* delay slot                         */
3167
3168         /* save return value */
3169
3170         if (md->returntype.type != TYPE_VOID) {
3171                 if (IS_INT_LNG_TYPE(md->returntype.type))
3172                         M_MOV(REG_RESULT_CALLER, REG_RESULT_CALLEE);
3173                 else
3174                         M_DST(REG_FRESULT, REG_SP, CSTACK);
3175         }
3176
3177         /* Note: native functions return float values in %f0 (see ABI) */
3178         /* we handle this by doing M_FLD below. (which will load the lower word into %f1) */
3179
3180 #if !defined(NDEBUG)
3181         /* But for the trace function we need to put a flt result into %f1 */
3182         if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
3183                 if (!IS_2_WORD_TYPE(md->returntype.type))
3184                         M_FLD(REG_FRESULT, REG_SP, CSTACK);
3185                 emit_verbosecall_exit(jd);
3186         }
3187 #endif
3188
3189         /* remove native stackframe info */
3190
3191         M_ADD_IMM(REG_FP, BIAS, REG_OUT0); /* datasp, like above */
3192         disp = dseg_add_functionptr(cd, codegen_finish_native_call);
3193         M_ALD(REG_ITMP3, REG_PV_CALLEE, disp);
3194         M_JMP(REG_RA_CALLER, REG_ITMP3, REG_ZERO);
3195         M_NOP; /* XXX fill me! */
3196         M_MOV(REG_RESULT_CALLER, REG_ITMP2_XPTR);
3197
3198         /* restore float return value, int return value already in our return reg */
3199
3200         if (md->returntype.type != TYPE_VOID) {
3201                 if (IS_FLT_DBL_TYPE(md->returntype.type)) {
3202                         if (IS_2_WORD_TYPE(md->returntype.type))
3203                                 M_DLD(REG_FRESULT, REG_SP, CSTACK);
3204                         else
3205                                 M_FLD(REG_FRESULT, REG_SP, CSTACK);
3206                 }
3207         }
3208
3209         /* check for exception */
3210         M_BNEZ(REG_ITMP2_XPTR, 4);          /* if no exception then return        */
3211         M_NOP;
3212
3213         M_RETURN(REG_RA_CALLEE, 8); /* implicit window restore */
3214         M_NOP;
3215
3216         /* handle exception */
3217
3218         disp = dseg_add_functionptr(cd, asm_handle_nat_exception);
3219         M_ALD(REG_ITMP1, REG_PV, disp);     /* load asm exception handler address */
3220         M_MOV(REG_RA_CALLEE, REG_ITMP3_XPC); /* get exception address             */
3221         M_JMP(REG_ZERO, REG_ITMP1, REG_ZERO);/* jump to asm exception handler     */
3222         M_RESTORE(REG_ZERO, 0, REG_ZERO);   /* restore callers window (DELAY)     */
3223
3224
3225         /* generate patcher stubs */
3226
3227         emit_patcher_stubs(jd);
3228
3229         codegen_finish(jd);
3230
3231         return code->entrypoint;
3232 }
3233
3234 /*
3235  * These are local overrides for various environment variables in Emacs.
3236  * Please do not remove this and leave it at the end of the file, where
3237  * Emacs will automagically detect them.
3238  * ---------------------------------------------------------------------
3239  * Local variables:
3240  * mode: c
3241  * indent-tabs-mode: t
3242  * c-basic-offset: 4
3243  * tab-width: 4
3244  * End:
3245  * vim:noexpandtab:sw=4:ts=4:
3246  */