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/abi.h"
  51 #include "vm/jit/asmpart.h"
  52 #include "vm/jit/codegen-common.h"
  53 #include "vm/jit/dseg.h"
  54 #include "vm/jit/emit-common.h"
  55 #include "vm/jit/sparc64/emit.h"
  56 #include "vm/jit/jit.h"
  57 #include "vm/jit/parse.h"
  58 #include "vm/jit/patcher.h"
  59 #include "vm/jit/reg.h"
  60 #include "vm/jit/replace.h"
  61 #include "vm/jit/stacktrace.h"
  62 #include "vmcore/loader.h"
  63 #include "vmcore/options.h"
  64
  65
  66 #define BUILTIN_FLOAT_ARGS 1
  67
  68 /* XXX use something like this for window control ?
  69  * #define REG_PV (own_window?REG_PV_CALLEE:REG_PV_CALLER)
  70  */
  71 #define REG_PV REG_PV_CALLEE
  72
  73 bool fits_13(s4 disp)
  74 {
  75         /*
  76         if ((disp < -4096) || (disp > 4095))
  77                 printf("disp %d\n", disp);
  78         */
  79
  80         return (disp >= -4096) && (disp <= 4095);
  81 }
  82
  83 s4 get_lopart_disp(disp)
  84 {
  85         s4 lodisp;
  86
  87         if (disp > 0)
  88                 lodisp = setlo_part(disp);
  89         else {
  90                 if (setlo_part(disp) == 0)
  91                         lodisp = 0;
  92                 else
  93                         lodisp = setlo_part(disp) | 0x1c00;
  94         }
  95
  96         return lodisp;
  97 }
  98
  99
 100 /* codegen_emit ****************************************************************
 101
 102    Generates machine code.
 103
 104 *******************************************************************************/
 105
 106 bool codegen_emit(jitdata *jd)
 107 {
 108         methodinfo         *m;
 109         codeinfo           *code;
 110         codegendata        *cd;
 111         registerdata       *rd;
 112         s4                  len, s1, s2, s3, d, disp;
 113         varinfo            *var;
 114         basicblock         *bptr;
 115         instruction        *iptr;
 116         exception_entry    *ex;
 117         u2                  currentline;
 118         constant_classref  *cr;
 119         methodinfo         *lm;             /* local methodinfo for ICMD_INVOKE*  */
 120         unresolved_method  *um;
 121         builtintable_entry *bte;
 122         methoddesc         *md;
 123         fieldinfo          *fi;
 124         unresolved_field   *uf;
 125         s4                  fieldtype;
 126         s4                  varindex;
 127
 128         /* get required compiler data */
 129
 130         m  = jd->m;
 131         code = jd->code;
 132         cd = jd->cd;
 133         rd = jd->rd;
 134
 135         /* prevent compiler warnings */
 136
 137         d = 0;
 138         currentline = 0;
 139         lm = NULL;
 140         bte = NULL;
 141
 142         {
 143         s4 i, p, t, l;
 144         s4 savedregs_num, localbase;
 145
 146 #if 0 /* no leaf optimization yet */
 147         savedregs_num = (jd->isleafmethod) ? 0 : 1;       /* space to save the RA */
 148 #endif
 149         savedregs_num = WINSAVE_CNT + ABIPARAMS_CNT; /* register-window save area */
 150
 151
 152         /* space to save used callee saved registers */
 153
 154         savedregs_num += (INT_SAV_CNT - rd->savintreguse);
 155         savedregs_num += (FLT_SAV_CNT - rd->savfltreguse);
 156
 157         cd->stackframesize = rd->memuse + savedregs_num;
 158
 159 #if defined(ENABLE_THREADS)        /* space to save argument of monitor_enter */
 160         if (checksync && (m->flags & ACC_SYNCHRONIZED))
 161                 cd->stackframesize++;
 162 #endif
 163
 164         /* keep stack 16-byte aligned (ABI requirement) */
 165
 166         if (cd->stackframesize & 1)
 167                 cd->stackframesize++;
 168
 169         /* create method header */
 170
 171         (void) dseg_add_unique_address(cd, code);              /* CodeinfoPointer */
 172         (void) dseg_add_unique_s4(cd, cd->stackframesize * 8); /* FrameSize       */
 173
 174 #if defined(ENABLE_THREADS)
 175         /* IsSync contains the offset relative to the stack pointer for the
 176            argument of monitor_exit used in the exception handler. Since the
 177            offset could be zero and give a wrong meaning of the flag it is
 178            offset by one.
 179         */
 180
 181         if (checksync && (m->flags & ACC_SYNCHRONIZED))
 182                 (void) dseg_add_unique_s4(cd, (rd->memuse + 1) * 8); /* IsSync        */
 183         else
 184 #endif
 185                 (void) dseg_add_unique_s4(cd, 0);                  /* IsSync          */
 186
 187         (void) dseg_add_unique_s4(cd, jd->isleafmethod);       /* IsLeaf          */
 188         (void) dseg_add_unique_s4(cd, INT_SAV_CNT - rd->savintreguse); /* IntSave */
 189         (void) dseg_add_unique_s4(cd, FLT_SAV_CNT - rd->savfltreguse); /* FltSave */
 190         dseg_addlinenumbertablesize(cd);
 191         (void) dseg_add_unique_s4(cd, jd->exceptiontablelength); /* ExTableSize   */
 192
 193         /* create exception table */
 194
 195         for (ex = jd->exceptiontable; ex != NULL; ex = ex->down) {
 196                 dseg_add_target(cd, ex->start);
 197                 dseg_add_target(cd, ex->end);
 198                 dseg_add_target(cd, ex->handler);
 199                 (void) dseg_add_unique_address(cd, ex->catchtype.any);
 200         }
 201
 202         /* save register window and create stack frame (if necessary) */
 203
 204         if (cd->stackframesize)
 205                 M_SAVE(REG_SP, -cd->stackframesize * 8, REG_SP);
 206
 207
 208         /* save callee saved float registers (none right now) */
 209 #if 0
 210         p = cd->stackframesize;
 211         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
 212                 p--; M_DST(rd->savfltregs[i], REG_SP, USESTACK + (p * 8));
 213         }
 214 #endif
 215
 216 #if !defined(NDEBUG)
 217         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
 218                 emit_verbosecall_enter(jd);
 219 #endif
 220
 221
 222
 223         /* take arguments out of register or stack frame */
 224
 225         md = m->parseddesc;
 226
 227         /* when storing locals, use this as base */
 228         localbase = JITSTACK;
 229
 230         /* since the register allocator does not know about the shifting window
 231          * arg regs need to be copied via the stack
 232          */
 233         if (md->argintreguse > 0) {
 234                 /* allocate scratch space for copying in to save(i&l) regs */
 235                 M_SUB_IMM(REG_SP, INT_ARG_CNT * 8, REG_SP);
 236
 237                 localbase += INT_ARG_CNT * 8;
 238
 239                 /* XXX could use the param slots on the stack for this! */
 240                 for (p = 0; p < INT_ARG_CNT; p++)
 241                         M_STX(REG_WINDOW_TRANSPOSE(abi_registers_integer_argument[p]), REG_SP, JITSTACK + (p * 8));
 242         }
 243
 244
 245         for (p = 0, l = 0; p < md->paramcount; p++) {
 246                 t = md->paramtypes[p].type;
 247
 248                 varindex = jd->local_map[l * 5 + t];
 249
 250                 l++;
 251                 if (IS_2_WORD_TYPE(t))    /* increment local counter for 2 word types */
 252                         l++;
 253
 254                 if (varindex == UNUSED)
 255                         continue;
 256
 257                 var = VAR(varindex);
 258                 s1 = md->params[p].regoff;
 259
 260                 if (IS_INT_LNG_TYPE(t)) {                    /* integer args          */
 261
 262                         if (!md->params[p].inmemory) {           /* register arguments    */
 263                                 /*s2 = rd->argintregs[s1];*/
 264                                 /*s2 = REG_WINDOW_TRANSPOSE(s2);*/
 265
 266                                 /* need the argument index (p) here, not the register number */
 267
 268                                 if (!(var->flags & INMEMORY)) {      /* reg arg -> register   */
 269                                         /*M_INTMOVE(s2, var->vv.regoff);*/
 270                                         M_LDX(var->vv.regoff, REG_SP, JITSTACK + (p * 8));
 271
 272                                 } else {                             /* reg arg -> spilled    */
 273                                         /*M_STX(s2, REG_SP, (WINSAVE_CNT + var->vv.regoff) * 8);*/
 274
 275                                         M_LDX(REG_ITMP1, REG_SP, JITSTACK + (p * 8));
 276                                         M_STX(REG_ITMP1, REG_SP, localbase + (var->vv.regoff * 8));
 277                                 }
 278
 279                         } else {                                 /* stack arguments       */
 280                                 if (!(var->flags & INMEMORY)) {      /* stack arg -> register */
 281                                         M_LDX(var->vv.regoff, REG_FP, JITSTACK + (s1 * 8));
 282
 283                                 } else {                             /* stack arg -> spilled  */
 284                                         /* add the callers window save registers */
 285                                         var->vv.regoff = cd->stackframesize + s1;
 286                                 }
 287                         }
 288
 289                 } else {                                     /* floating args         */
 290                         if (!md->params[p].inmemory) {           /* register arguments    */
 291                                 if (!(var->flags & INMEMORY)) {      /* reg arg -> register   */
 292                                         M_FLTMOVE(s1, var->vv.regoff);
 293
 294                                 } else {                                         /* reg arg -> spilled    */
 295                                         M_DST(s1, REG_SP, localbase + (var->vv.regoff) * 8);
 296                                 }
 297
 298                         } else {                                 /* stack arguments       */
 299                                 if (!(var->flags & INMEMORY)) {      /* stack-arg -> register */
 300                                         M_DLD(var->vv.regoff, REG_FP, JITSTACK + (s1 * 8));
 301
 302                                 } else {                             /* stack-arg -> spilled  */
 303                                         var->vv.regoff = cd->stackframesize + s1;
 304                                 }
 305                         }
 306                 }
 307         } /* end for */
 308
 309         if (md->argintreguse > 0) {
 310                 /* release scratch space */
 311                 M_ADD_IMM(REG_SP, INT_ARG_CNT * 8, REG_SP);
 312         }
 313
 314
 315         /* XXX monitor enter */
 316
 317
 318
 319
 320         }
 321
 322         /* end of header generation */
 323
 324         /* create replacement points */
 325
 326         REPLACEMENT_POINTS_INIT(cd, jd);
 327
 328         /* walk through all basic blocks */
 329
 330         for (bptr = jd->basicblocks; bptr != NULL; bptr = bptr->next) {
 331
 332                 bptr->mpc = (s4) (cd->mcodeptr - cd->mcodebase);
 333
 334                 if (bptr->flags >= BBREACHED) {
 335
 336                 /* branch resolving */
 337
 338                 codegen_resolve_branchrefs(cd, bptr);
 339
 340                 /* handle replacement points */
 341
 342 #if 0
 343                 if (bptr->bitflags & BBFLAG_REPLACEMENT) {
 344                         replacementpoint->pc = (u1*)(ptrint)bptr->mpc; /* will be resolved later */
 345
 346                         replacementpoint++;
 347                 }
 348 #endif
 349
 350                 /* copy interface registers to their destination */
 351
 352                 len = bptr->indepth;
 353                 MCODECHECK(64+len);
 354
 355 #if defined(ENABLE_LSRA)
 356 #error XXX LSRA not tested yet
 357                 if (opt_lsra) {
 358                 while (len) {
 359                         len--;
 360                         src = bptr->invars[len];
 361                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 362                                         /*                              d = reg_of_var(m, src, REG_ITMP1); */
 363                                         if (!(src->flags & INMEMORY))
 364                                                 d = src->vv.regoff;
 365                                         else
 366                                                 d = REG_ITMP1;
 367                                         M_INTMOVE(REG_ITMP1, d);
 368                                         emit_store(jd, NULL, src, d);
 369                                 }
 370                         }
 371                 } else {
 372 #endif
 373                 while (len) {
 374                         len--;
 375                         var = VAR(bptr->invars[len]);
 376                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 377                                 d = codegen_reg_of_var(0, var, REG_ITMP1);
 378                                 M_INTMOVE(REG_ITMP2_XPTR, d);
 379                                 emit_store(jd, NULL, var, d);
 380                         }
 381                         else {
 382                                 assert((var->flags & INOUT));
 383                         }
 384                 }
 385 #if defined(ENABLE_LSRA)
 386                 }
 387 #endif
 388                 /* walk through all instructions */
 389
 390                 len = bptr->icount;
 391
 392                 for (iptr = bptr->iinstr; len > 0; len--, iptr++) {
 393                         if (iptr->line != currentline) {
 394                                 dseg_addlinenumber(cd, iptr->line);
 395                                 currentline = iptr->line;
 396                         }
 397
 398                 MCODECHECK(64);       /* an instruction usually needs < 64 words      */
 399
 400                 switch (iptr->opc) {
 401
 402                 case ICMD_INLINE_START:
 403                 case ICMD_INLINE_END:
 404                         break;
 405
 406                 case ICMD_NOP:        /* ...  ==> ...                                 */
 407                         break;
 408
 409                 case ICMD_CHECKNULL:  /* ..., objectref  ==> ..., objectref           */
 410
 411                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 412                         emit_nullpointer_check(cd, iptr, s1);
 413                         break;
 414
 415                 /* constant operations ************************************************/
 416
 417                 case ICMD_ICONST:     /* ...  ==> ..., constant                       */
 418
 419                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 420                         ICONST(d, iptr->sx.val.i);
 421                         emit_store_dst(jd, iptr, d);
 422                         break;
 423
 424                 case ICMD_LCONST:     /* ...  ==> ..., constant                       */
 425
 426                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 427                         LCONST(d, iptr->sx.val.l);
 428                         emit_store_dst(jd, iptr, d);
 429                         break;
 430
 431                 case ICMD_FCONST:     /* ...  ==> ..., constant                       */
 432
 433                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 434                         disp = dseg_add_float(cd, iptr->sx.val.f);
 435                         M_FLD(d, REG_PV, disp);
 436                         emit_store_dst(jd, iptr, d);
 437                         break;
 438
 439                 case ICMD_DCONST:     /* ...  ==> ..., constant                       */
 440
 441                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 442                         disp = dseg_add_double(cd, iptr->sx.val.d);
 443                         M_DLD(d, REG_PV, disp);
 444                         emit_store_dst(jd, iptr, d);
 445                         break;
 446
 447                 case ICMD_ACONST:     /* ...  ==> ..., constant                       */
 448
 449                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 450
 451                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
 452                                 cr   = iptr->sx.val.c.ref;
 453                                 disp = dseg_add_unique_address(cd, cr);
 454
 455                                 codegen_add_patch_ref(cd, PATCHER_aconst, cr, disp);
 456
 457                                 M_ALD(d, REG_PV, disp);
 458
 459                         }
 460                         else {
 461                                 if (iptr->sx.val.anyptr == NULL) {
 462                                         M_INTMOVE(REG_ZERO, d);
 463                                 }
 464                                 else {
 465                                         disp = dseg_add_address(cd, iptr->sx.val.anyptr);
 466                                         M_ALD(d, REG_PV, disp);
 467                                 }
 468                         }
 469                         emit_store_dst(jd, iptr, d);
 470                         break;
 471
 472
 473                 /* load/store/copy/move operations ************************************/
 474
 475                 case ICMD_ILOAD:      /* ...  ==> ..., content of local variable      */
 476                 case ICMD_LLOAD:
 477                 case ICMD_ALOAD:
 478                 case ICMD_FLOAD:
 479                 case ICMD_DLOAD:
 480                 case ICMD_ISTORE:     /* ..., value  ==> ...                          */
 481                 case ICMD_LSTORE:
 482                 case ICMD_FSTORE:
 483                 case ICMD_DSTORE:
 484                 case ICMD_COPY:
 485                 case ICMD_MOVE:
 486
 487                         emit_copy(jd, iptr);
 488                         break;
 489
 490                 case ICMD_ASTORE:
 491                         if (!(iptr->flags.bits & INS_FLAG_RETADDR))
 492                                 emit_copy(jd, iptr);
 493                         break;
 494
 495
 496                 /* pop/dup/swap operations ********************************************/
 497
 498                 /* attention: double and longs are only one entry in CACAO ICMDs      */
 499
 500                 case ICMD_POP:        /* ..., value  ==> ...                          */
 501                 case ICMD_POP2:       /* ..., value, value  ==> ...                   */
 502                         break;
 503
 504
 505                 /* integer operations *************************************************/
 506
 507                 case ICMD_INEG:       /* ..., value  ==> ..., - value                 */
 508                 case ICMD_LNEG:
 509
 510                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 511                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 512                         M_SUB(REG_ZERO, s1, d);
 513                         emit_store_dst(jd, iptr, d);
 514                         break;
 515
 516                 case ICMD_I2L:        /* ..., value  ==> ..., value                   */
 517
 518                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 519                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 520                         M_INTMOVE(s1, d);
 521                         emit_store_dst(jd, iptr, d);
 522                         break;
 523
 524                 case ICMD_L2I:        /* ..., value  ==> ..., value                   */
 525
 526                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 527                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 528                         M_SRA_IMM(s1, 0, d); /* sign extend upper 32 bits */
 529                         emit_store_dst(jd, iptr, d);
 530                         break;
 531
 532                 case ICMD_INT2BYTE:   /* ..., value  ==> ..., value                   */
 533
 534                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 535                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 536                         M_SLLX_IMM(s1, 56, d);
 537                         M_SRAX_IMM( d, 56, d);
 538                         emit_store_dst(jd, iptr, d);
 539                         break;
 540
 541                 case ICMD_INT2CHAR:   /* ..., value  ==> ..., value                   */
 542
 543                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 544                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 545                         M_SLLX_IMM(s1, 48, d);
 546                         M_SRLX_IMM( d, 48, d);
 547                         emit_store_dst(jd, iptr, d);
 548                         break;
 549
 550                 case ICMD_INT2SHORT:   /* ..., value  ==> ..., value                   */
 551
 552                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 553                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 554                         M_SLLX_IMM(s1, 48, d);
 555                         M_SRAX_IMM( d, 48, d);
 556                         emit_store_dst(jd, iptr, d);
 557                         break;
 558
 559                 case ICMD_IADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 560                 case ICMD_LADD:
 561
 562                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 563                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 564                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 565                         M_ADD(s1, s2, d);
 566                         emit_store_dst(jd, iptr, d);
 567                         break;
 568
 569                 case ICMD_IINC:
 570                 case ICMD_IADDCONST:  /* ..., value  ==> ..., value + constant        */
 571                                       /* sx.val.i = constant                             */
 572
 573                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 574                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 575                         if ((iptr->sx.val.i >= -4096) && (iptr->sx.val.i <= 4095)) {
 576                                 M_ADD_IMM(s1, iptr->sx.val.i, d);
 577                         } else {
 578                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 579                                 M_ADD(s1, REG_ITMP2, d);
 580                         }
 581                         emit_store_dst(jd, iptr, d);
 582                         break;
 583
 584                 case ICMD_LADDCONST:  /* ..., value  ==> ..., value + constant        */
 585                                       /* sx.val.l = constant                             */
 586
 587                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 588                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 589                         if ((iptr->sx.val.l >= -4096) && (iptr->sx.val.l <= 4095)) {
 590                                 M_ADD_IMM(s1, iptr->sx.val.l, d);
 591                         } else {
 592                                 LCONST(REG_ITMP2, iptr->sx.val.l);
 593                                 M_ADD(s1, REG_ITMP2, d);
 594                         }
 595                         emit_store_dst(jd, iptr, d);
 596                         break;
 597
 598                 case ICMD_ISUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 599                 case ICMD_LSUB:
 600
 601                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 602                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 603                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 604                         M_SUB(s1, s2, d);
 605                         emit_store_dst(jd, iptr, d);
 606                         break;
 607
 608                 case ICMD_ISUBCONST:  /* ..., value  ==> ..., value + constant        */
 609                                       /* sx.val.i = constant                             */
 610
 611                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 612                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 613                         if ((iptr->sx.val.i >= -4096) && (iptr->sx.val.i <= 4095)) {
 614                                 M_SUB_IMM(s1, iptr->sx.val.i, d);
 615                         } else {
 616                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 617                                 M_SUB(s1, REG_ITMP2, d);
 618                         }
 619                         emit_store_dst(jd, iptr, d);
 620                         break;
 621
 622                 case ICMD_LSUBCONST:  /* ..., value  ==> ..., value - constant        */
 623                                       /* sx.val.l = constant                             */
 624
 625                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 626                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 627                         if ((iptr->sx.val.l >= -4096) && (iptr->sx.val.l <= 4095)) {
 628                                 M_SUB_IMM(s1, iptr->sx.val.l, d);
 629                         } else {
 630                                 LCONST(REG_ITMP2, iptr->sx.val.l);
 631                                 M_SUB(s1, REG_ITMP2, d);
 632                         }
 633                         emit_store_dst(jd, iptr, d);
 634                         break;
 635
 636                 case ICMD_IMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 637                 case ICMD_LMUL:
 638
 639                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 640                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 641                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 642                         M_MULX(s1, s2, d);
 643                         emit_store_dst(jd, iptr, d);
 644                         break;
 645
 646                 case ICMD_IMULCONST:  /* ..., value  ==> ..., value * constant        */
 647                                       /* sx.val.i = constant                             */
 648
 649                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 650                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 651                         if ((iptr->sx.val.i >= -4096) && (iptr->sx.val.i <= 4095)) {
 652                                 M_MULX_IMM(s1, iptr->sx.val.i, d);
 653                         } else {
 654                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 655                                 M_MULX(s1, REG_ITMP2, d);
 656                         }
 657                         emit_store_dst(jd, iptr, d);
 658                         break;
 659
 660                 case ICMD_LMULCONST:  /* ..., value  ==> ..., value * constant        */
 661                                       /* sx.val.l = constant                             */
 662
 663                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 664                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 665                         if ((iptr->sx.val.l >= -4096) && (iptr->sx.val.l <= 4095)) {
 666                                 M_MULX_IMM(s1, iptr->sx.val.l, d);
 667                         } else {
 668                                 LCONST(REG_ITMP2, iptr->sx.val.l);
 669                                 M_MULX(s1, REG_ITMP2, d);
 670                         }
 671                         emit_store_dst(jd, iptr, d);
 672                         break;
 673
 674                 case ICMD_IDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 675 /* XXX could also clear Y and use 32bit div */
 676                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 677                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 678                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 679                         emit_arithmetic_check(cd, iptr, s2);
 680                         M_ISEXT(s1, s1);
 681                         /* XXX trim s2 like s1 ? */
 682                         M_DIVX(s1, s2, d);
 683                         emit_store_dst(jd, iptr, d);
 684                         break;
 685
 686                 case ICMD_LDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 687
 688                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 689                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 690                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 691                         emit_arithmetic_check(cd, iptr, s2);
 692                         M_DIVX(s1, s2, d);
 693                         emit_store_dst(jd, iptr, d);
 694                         break;
 695
 696                 case ICMD_IREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 697
 698                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 699                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 700                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 701                         emit_arithmetic_check(cd, iptr, s2);
 702                         M_ISEXT(s1, s1);
 703                         /* XXX trim s2 like s1 ? */
 704                         M_DIVX(s1, s2, REG_ITMP3);
 705                         M_MULX(s2, REG_ITMP3, REG_ITMP3);
 706                         M_SUB(s1, REG_ITMP3, d);
 707                         emit_store_dst(jd, iptr, d);
 708                         break;
 709
 710                 case ICMD_LREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 711
 712                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 713                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 714                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 715                         emit_arithmetic_check(cd, iptr, s2);
 716                         M_DIVX(s1, s2, REG_ITMP3);
 717                         M_MULX(s2, REG_ITMP3, REG_ITMP3);
 718                         M_SUB(s1, REG_ITMP3, d);
 719                         emit_store_dst(jd, iptr, d);
 720                         break;
 721
 722                 case ICMD_IDIVPOW2:   /* ..., value  ==> ..., value << constant       */
 723                 case ICMD_LDIVPOW2:   /* val.i = constant                             */
 724
 725                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 726                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 727                         M_SRAX_IMM(s1, 63, REG_ITMP2);
 728                         M_SRLX_IMM(REG_ITMP2, 64 - iptr->sx.val.i, REG_ITMP2);
 729                         M_ADD(s1, REG_ITMP2, REG_ITMP2);
 730                         M_SRAX_IMM(REG_ITMP2, iptr->sx.val.i, d);
 731                         emit_store_dst(jd, iptr, d);
 732                         break;
 733
 734                 case ICMD_ISHL:       /* ..., val1, val2  ==> ..., val1 << val2       */
 735
 736                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 737                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 738                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 739                         M_SLL(s1, s2, d);
 740                         emit_store_dst(jd, iptr, d);
 741                         break;
 742
 743                 case ICMD_LSHL:       /* ..., val1, val2  ==> ..., val1 << val2       */
 744
 745                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 746                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 747                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 748                         M_SLLX(s1, s2, d);
 749                         emit_store_dst(jd, iptr, d);
 750                         break;
 751
 752                 case ICMD_ISHLCONST:  /* ..., value  ==> ..., value << constant       */
 753                                       /* val.i = constant                             */
 754
 755                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 756                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 757                         M_SLL_IMM(s1, iptr->sx.val.i, d);
 758                         emit_store_dst(jd, iptr, d);
 759                         break;
 760
 761                 case ICMD_LSHLCONST:  /* ..., value  ==> ..., value << constant       */
 762                                       /* val.i = constant                             */
 763
 764                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 765                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 766                         M_SLLX_IMM(s1, iptr->sx.val.i, d);
 767                         emit_store_dst(jd, iptr, d);
 768                         break;
 769
 770                 case ICMD_ISHR:       /* ..., val1, val2  ==> ..., val1 >> val2       */
 771
 772                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 773                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 774                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 775                         M_SRA(s1, s2, d);
 776                         emit_store_dst(jd, iptr, d);
 777                         break;
 778
 779                 case ICMD_ISHRCONST:  /* ..., value  ==> ..., value >> constant       */
 780                                       /* sx.val.i = constant                             */
 781
 782                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 783                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 784                         M_SRA_IMM(s1, iptr->sx.val.i, d);
 785                         emit_store_dst(jd, iptr, d);
 786                         break;
 787
 788                 case ICMD_IUSHR:      /* ..., val1, val2  ==> ..., val1 >>> val2      */
 789
 790                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 791                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 792                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 793                         M_SRL(s1, s2, d);
 794                         emit_store_dst(jd, iptr, d);
 795                         break;
 796
 797                 case ICMD_IUSHRCONST: /* ..., value  ==> ..., value >>> constant      */
 798                                       /* sx.val.i = constant                             */
 799
 800                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 801                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 802                         M_SRL_IMM(s1, iptr->sx.val.i, d);
 803                         emit_store_dst(jd, iptr, d);
 804                         break;
 805
 806                 case ICMD_LSHR:       /* ..., val1, val2  ==> ..., val1 >> val2       */
 807
 808                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 809                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 810                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 811                         M_SRAX(s1, s2, d);
 812                         emit_store_dst(jd, iptr, d);
 813                         break;
 814
 815                 case ICMD_LSHRCONST:  /* ..., value  ==> ..., value >> constant       */
 816                                       /* sx.val.i = constant                             */
 817
 818                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 819                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 820                         M_SRAX_IMM(s1, iptr->sx.val.i, d);
 821                         emit_store_dst(jd, iptr, d);
 822                         break;
 823
 824                 case ICMD_LUSHR:      /* ..., val1, val2  ==> ..., val1 >>> val2      */
 825
 826                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 827                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 828                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 829                         M_SRLX(s1, s2, d);
 830                         emit_store_dst(jd, iptr, d);
 831                         break;
 832
 833                 case ICMD_LUSHRCONST: /* ..., value  ==> ..., value >>> constant      */
 834                                       /* sx.val.i = constant                             */
 835
 836                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 837                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 838                         M_SRLX_IMM(s1, iptr->sx.val.i, d);
 839                         emit_store_dst(jd, iptr, d);
 840                         break;
 841
 842                 case ICMD_IAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 843                 case ICMD_LAND:
 844
 845                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 846                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 847                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 848                         M_AND(s1, s2, d);
 849                         emit_store_dst(jd, iptr, d);
 850                         break;
 851
 852                 case ICMD_IANDCONST:  /* ..., value  ==> ..., value & constant        */
 853                                       /* sx.val.i = constant                             */
 854
 855                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 856                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 857                         if ((iptr->sx.val.i >= -4096) && (iptr->sx.val.i <= 4095)) {
 858                                 M_AND_IMM(s1, iptr->sx.val.i, d);
 859                         } else {
 860                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 861                                 M_AND(s1, REG_ITMP2, d);
 862                         }
 863                         emit_store_dst(jd, iptr, d);
 864                         break;
 865
 866                 case ICMD_IREMPOW2:   /* ..., value  ==> ..., value % constant           */
 867                                       /* sx.val.i = constant                             */
 868                                       /* constant is actually constant - 1               */
 869
 870                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 871                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 872                         if (s1 == d) {
 873                                 M_MOV(s1, REG_ITMP1);
 874                                 s1 = REG_ITMP1;
 875                         }
 876                         M_ISEXT(s1, s1); /* trim for 32-bit compare (BGEZ) */
 877                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 4095)) {
 878                                 M_AND_IMM(s1, iptr->sx.val.i, d);
 879                                 M_BGEZ(s1, 5);
 880                                 M_NOP;
 881                                 M_SUB(REG_ZERO, s1, d);
 882                                 M_AND_IMM(d, iptr->sx.val.i, d);
 883                         } else {
 884                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 885                                 M_AND(s1, REG_ITMP2, d);
 886                                 M_BGEZ(s1, 5);
 887                                 M_NOP;
 888                                 M_SUB(REG_ZERO, s1, d);
 889                                 M_AND(d, REG_ITMP2, d);
 890                         }
 891                         M_SUB(REG_ZERO, d, d);
 892                         emit_store_dst(jd, iptr, d);
 893                         break;
 894
 895                 case ICMD_LANDCONST:  /* ..., value  ==> ..., value & constant        */
 896                                       /* sx.val.l = constant                             */
 897
 898                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 899                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 900                         if ((iptr->sx.val.l >= -4096) && (iptr->sx.val.l <= 4095)) {
 901                                 M_AND_IMM(s1, iptr->sx.val.l, d);
 902                         } else {
 903                                 LCONST(REG_ITMP2, iptr->sx.val.l);
 904                                 M_AND(s1, REG_ITMP2, d);
 905                         }
 906                         emit_store_dst(jd, iptr, d);
 907                         break;
 908
 909                 case ICMD_LREMPOW2:   /* ..., value  ==> ..., value % constant        */
 910                                       /* sx.val.l = constant                             */
 911
 912                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 913                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 914                         if (s1 == d) {
 915                                 M_MOV(s1, REG_ITMP1);
 916                                 s1 = REG_ITMP1;
 917                         }
 918                         if ((iptr->sx.val.l >= -4096) && (iptr->sx.val.l <= 4095)) {
 919                                 M_AND_IMM(s1, iptr->sx.val.l, d);
 920                                 M_BGEZ(s1, 4);
 921                                 M_NOP;
 922                                 M_SUB(REG_ZERO, s1, d);
 923                                 M_AND_IMM(d, iptr->sx.val.l, d);
 924                         } else {
 925                                 LCONST(REG_ITMP2, iptr->sx.val.l);
 926                                 M_AND(s1, REG_ITMP2, d);
 927                                 M_BGEZ(s1, 4);
 928                                 M_NOP;
 929                                 M_SUB(REG_ZERO, s1, d);
 930                                 M_AND(d, REG_ITMP2, d);
 931                         }
 932                         M_SUB(REG_ZERO, d, d);
 933                         emit_store_dst(jd, iptr, d);
 934                         break;
 935
 936                 case ICMD_IOR:        /* ..., val1, val2  ==> ..., val1 | val2        */
 937                 case ICMD_LOR:
 938
 939                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 940                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 941                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 942                         M_OR(s1,s2, d);
 943                         emit_store_dst(jd, iptr, d);
 944                         break;
 945
 946                 case ICMD_IORCONST:   /* ..., value  ==> ..., value | constant        */
 947                                       /* sx.val.i = constant                             */
 948
 949                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 950                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 951                         if ((iptr->sx.val.i >= -4096) && (iptr->sx.val.i <= 4095)) {
 952                                 M_OR_IMM(s1, iptr->sx.val.i, d);
 953                         } else {
 954                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 955                                 M_OR(s1, REG_ITMP2, d);
 956                         }
 957                         emit_store_dst(jd, iptr, d);
 958                         break;
 959
 960                 case ICMD_LORCONST:   /* ..., value  ==> ..., value | constant        */
 961                                       /* sx.val.l = constant                             */
 962
 963                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 964                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 965                         if ((iptr->sx.val.l >= -4096) && (iptr->sx.val.l <= 4095)) {
 966                                 M_OR_IMM(s1, iptr->sx.val.l, d);
 967                         } else {
 968                                 LCONST(REG_ITMP2, iptr->sx.val.l);
 969                                 M_OR(s1, REG_ITMP2, d);
 970                         }
 971                         emit_store_dst(jd, iptr, d);
 972                         break;
 973
 974                 case ICMD_IXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
 975                 case ICMD_LXOR:
 976
 977                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 978                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 979                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 980                         M_XOR(s1, s2, d);
 981                         emit_store_dst(jd, iptr, d);
 982                         break;
 983
 984                 case ICMD_IXORCONST:  /* ..., value  ==> ..., value ^ constant        */
 985                                       /* sx.val.i = constant                             */
 986
 987                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 988                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 989                         if ((iptr->sx.val.i >= -4096) && (iptr->sx.val.i <= 4095)) {
 990                                 M_XOR_IMM(s1, iptr->sx.val.i, d);
 991                         } else {
 992                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 993                                 M_XOR(s1, REG_ITMP2, d);
 994                         }
 995                         emit_store_dst(jd, iptr, d);
 996                         break;
 997
 998                 case ICMD_LXORCONST:  /* ..., value  ==> ..., value ^ constant        */
 999                                       /* sx.val.l = constant                             */
1000
1001                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1002                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1003                         if ((iptr->sx.val.l >= -4096) && (iptr->sx.val.l <= 4095)) {
1004                                 M_XOR_IMM(s1, iptr->sx.val.l, d);
1005                         } else {
1006                                 LCONST(REG_ITMP2, iptr->sx.val.l);
1007                                 M_XOR(s1, REG_ITMP2, d);
1008                         }
1009                         emit_store_dst(jd, iptr, d);
1010                         break;
1011
1012
1013                 case ICMD_LCMP:       /* ..., val1, val2  ==> ..., val1 cmp val2      */
1014
1015                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1016                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1017                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1018                         M_CMP(s1, s2);
1019                         M_MOV(REG_ZERO, d);
1020                         M_XCMOVLT_IMM(-1, d);
1021                         M_XCMOVGT_IMM(1, d);
1022                         emit_store_dst(jd, iptr, d);
1023                         break;
1024
1025
1026                 /* floating operations ************************************************/
1027
1028                 case ICMD_FNEG:       /* ..., value  ==> ..., - value                 */
1029
1030                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1031                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1032                         M_FNEG(s1, d);
1033                         emit_store_dst(jd, iptr, d);
1034                         break;
1035
1036                 case ICMD_DNEG:       /* ..., value  ==> ..., - value                 */
1037
1038                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1039                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1040                         M_DNEG(s1, d);
1041                         emit_store_dst(jd, iptr, d);
1042                         break;
1043
1044                 case ICMD_FADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
1045
1046                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1047                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1048                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1049                         M_FADD(s1, s2, d);
1050                         emit_store_dst(jd, iptr, d);
1051                         break;
1052
1053                 case ICMD_DADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
1054
1055                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1056                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1057                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1058                         M_DADD(s1, s2, d);
1059                         emit_store_dst(jd, iptr, d);
1060                         break;
1061
1062                 case ICMD_FSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
1063
1064                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1065                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1066                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1067                         M_FSUB(s1, s2, d);
1068                         emit_store_dst(jd, iptr, d);
1069                         break;
1070
1071                 case ICMD_DSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
1072
1073                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1074                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1075                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1076                         M_DSUB(s1, s2, d);
1077                         emit_store_dst(jd, iptr, d);
1078                         break;
1079
1080                 case ICMD_FMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1081
1082                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1083                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1084                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1085                         M_FMUL(s1, s2, d);
1086                         emit_store_dst(jd, iptr, d);
1087                         break;
1088
1089                 case ICMD_DMUL:       /* ..., val1, val2  ==> ..., val1 *** val2      */
1090
1091                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1092                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1093                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1094                         M_DMUL(s1, s2, d);
1095                         emit_store_dst(jd, iptr, d);
1096                         break;
1097
1098                 case ICMD_FDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1099
1100                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1101                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1102                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1103                         M_FDIV(s1, s2, d);
1104                         emit_store_dst(jd, iptr, d);
1105                         break;
1106
1107                 case ICMD_DDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1108
1109                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1110                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1111                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
1112                         M_DDIV(s1, s2, d);
1113                         emit_store_dst(jd, iptr, d);
1114                         break;
1115
1116                 case ICMD_I2F:
1117                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1118                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1119                         disp = dseg_add_unique_float(cd, 0.0);
1120                         M_IST (s1, REG_PV_CALLEE, disp);
1121                         M_FLD (d, REG_PV_CALLEE, disp);
1122                         M_CVTIF (d, d); /* rd gets translated to double target register */
1123                         emit_store_dst(jd, iptr, d);
1124                         break;
1125
1126                 case ICMD_I2D:
1127                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1128                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1129                         disp = dseg_add_unique_float(cd, 0.0);
1130                         M_IST(s1, REG_PV_CALLEE, disp);
1131                         M_FLD(REG_FTMP2, REG_PV_CALLEE, disp); /* REG_FTMP2 needs to be a double temp */
1132                         M_CVTID (REG_FTMP2, d); /* rd gets translated to double target register */
1133                         emit_store_dst(jd, iptr, d);
1134                         break;
1135
1136                 case ICMD_L2F:
1137                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1138                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1139                         disp = dseg_add_unique_double(cd, 0.0);
1140                         M_STX(s1, REG_PV_CALLEE, disp);
1141                         M_DLD(REG_FTMP3, REG_PV_CALLEE, disp);
1142                         M_CVTLF(REG_FTMP3, d);
1143                         emit_store_dst(jd, iptr, d);
1144                         break;
1145
1146                 case ICMD_L2D:
1147                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1148                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1149                         disp = dseg_add_unique_double(cd, 0.0);
1150                         M_STX(s1, REG_PV_CALLEE, disp);
1151                         M_DLD(d, REG_PV_CALLEE, disp);
1152                         M_CVTLD(d, d);
1153                         emit_store_dst(jd, iptr, d);
1154                         break;
1155
1156                 case ICMD_F2I:       /* ..., value  ==> ..., (int) value              */
1157                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1158                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
1159                         disp = dseg_add_unique_float(cd, 0.0);
1160
1161                         /* check for NaN, SPARC overflow is noncompliant (see V9 spec B.5)  */
1162                         M_FCMP(s1, s1);
1163                         M_FBU(5);
1164                         M_MOV(REG_ZERO, d); /* delay slot */
1165
1166                         M_CVTFI(s1, REG_FTMP2);
1167                         M_FST(REG_FTMP2, REG_PV_CALLEE, disp);
1168                         M_ILD(d, REG_PV, disp);
1169                         emit_store_dst(jd, iptr, d);
1170                         break;
1171
1172
1173                 case ICMD_D2I:       /* ..., value  ==> ..., (int) value             */
1174                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1175                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
1176                         disp = dseg_add_unique_float(cd, 0.0);
1177
1178                         /* check for NaN, SPARC overflow is noncompliant (see V9 spec B.5)  */
1179                         M_DCMP(s1, s1);
1180                         M_FBU(5);
1181                         M_MOV(REG_ZERO, d); /* delay slot */
1182
1183                         M_CVTDI(s1, REG_FTMP2);
1184                         M_FST(REG_FTMP2, REG_PV, disp);
1185                         M_ILD(d, REG_PV, disp);
1186                         emit_store_dst(jd, iptr, d);
1187                         break;
1188
1189                 case ICMD_F2L:       /* ..., value  ==> ..., (long) value             */
1190                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1191                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
1192                         disp = dseg_add_unique_double(cd, 0.0);
1193
1194                         /* check for NaN, SPARC overflow is noncompliant (see V9 spec B.5)  */
1195                         M_FCMP(s1, s1);
1196                         M_FBU(5);
1197                         M_MOV(REG_ZERO, d); /* delay slot */
1198
1199                         M_CVTFL(s1, REG_FTMP2); /* FTMP2 needs to be double reg */
1200                         M_DST(REG_FTMP2, REG_PV, disp);
1201                         M_LDX(d, REG_PV, disp);
1202                         emit_store_dst(jd, iptr, d);
1203                         break;
1204
1205                 case ICMD_D2L:       /* ..., value  ==> ..., (long) value             */
1206                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1207                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
1208                         disp = dseg_add_unique_double(cd, 0.0);
1209
1210                         /* check for NaN, SPARC overflow is noncompliant (see V9 spec B.5)  */
1211                         M_DCMP(s1, s1);
1212                         M_FBU(5);
1213                         M_MOV(REG_ZERO, d); /* delay slot */
1214
1215                         M_CVTDL(s1, REG_FTMP2); /* FTMP2 needs to be double reg */
1216                         M_DST(REG_FTMP2, REG_PV, disp);
1217                         M_LDX(d, REG_PV, disp);
1218                         emit_store_dst(jd, iptr, d);
1219                         break;
1220
1221                 case ICMD_F2D:       /* ..., value  ==> ..., (double) value           */
1222
1223                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1224                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1225                         M_CVTFD(s1, d);
1226                         emit_store_dst(jd, iptr, d);
1227                         break;
1228
1229                 case ICMD_D2F:       /* ..., value  ==> ..., (float) value            */
1230
1231                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1232                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1233                         M_CVTDF(s1, d);
1234                         emit_store_dst(jd, iptr, d);
1235                         break;
1236
1237         /* XXX merge F/D versions? only compare instr. is different */
1238                 case ICMD_FCMPL:      /* ..., val1, val2  ==> ..., val1 fcmpl val2    */
1239
1240                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1241                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1242                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
1243                         M_FCMP(s1,s2);
1244                         M_OR_IMM(REG_ZERO, -1, d); /* less by default (less or unordered) */
1245                         M_CMOVFEQ_IMM(0, d); /* 0 if equal */
1246                         M_CMOVFGT_IMM(1, d); /* 1 if greater */
1247                         emit_store_dst(jd, iptr, d);
1248                         break;
1249
1250                 case ICMD_DCMPL:      /* ..., val1, val2  ==> ..., val1 fcmpl val2    */
1251
1252                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1253                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1254                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
1255                         M_DCMP(s1,s2);
1256                         M_OR_IMM(REG_ZERO, -1, d); /* less by default (less or unordered) */
1257                         M_CMOVFEQ_IMM(0, d); /* 0 if equal */
1258                         M_CMOVFGT_IMM(1, d); /* 1 if greater */
1259                         emit_store_dst(jd, iptr, d);
1260                         break;
1261
1262                 case ICMD_FCMPG:      /* ..., val1, val2  ==> ..., val1 fcmpg val2    */
1263
1264                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1265                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1266                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
1267                         M_FCMP(s1,s2);
1268                         M_OR_IMM(REG_ZERO, 1, d); /* greater by default (greater or unordered) */
1269                         M_CMOVFEQ_IMM(0, d); /* 0 if equal */
1270                         M_CMOVFLT_IMM(-1, d); /* -1 if less */
1271                         emit_store_dst(jd, iptr, d);
1272                         break;
1273
1274                 case ICMD_DCMPG:      /* ..., val1, val2  ==> ..., val1 fcmpg val2    */
1275
1276                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1277                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1278                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
1279                         M_DCMP(s1,s2);
1280                         M_OR_IMM(REG_ZERO, 1, d); /* greater by default (greater or unordered) */
1281                         M_CMOVFEQ_IMM(0, d); /* 0 if equal */
1282                         M_CMOVFLT_IMM(-1, d); /* -1 if less */
1283                         emit_store_dst(jd, iptr, d);
1284                         break;
1285
1286
1287                 /* memory operations **************************************************/
1288
1289                 case ICMD_ARRAYLENGTH: /* ..., arrayref  ==> ..., length              */
1290
1291                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1292                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1293                         emit_nullpointer_check(cd, iptr, s1);
1294                         M_ILD(d, s1, OFFSET(java_arrayheader, size));
1295                         emit_store_dst(jd, iptr, d);
1296                         break;
1297
1298                 case ICMD_BALOAD:     /* ..., arrayref, index  ==> ..., value         */
1299
1300                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1301                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1302                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1303                         /* implicit null-pointer check */
1304                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1305                         M_AADD(s2, s1, REG_ITMP3);
1306                         M_BLDS(d, REG_ITMP3, OFFSET(java_bytearray, data[0]));
1307                         emit_store_dst(jd, iptr, d);
1308                         break;
1309
1310                 case ICMD_CALOAD:     /* ..., arrayref, index  ==> ..., value         */
1311
1312                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1313                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1314                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1315                         /* implicit null-pointer check */
1316                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1317                         M_AADD(s2, s1, REG_ITMP3);
1318                         M_AADD(s2, REG_ITMP3, REG_ITMP3);
1319                         M_SLDU(d, REG_ITMP3, OFFSET(java_chararray, data[0]));
1320                         emit_store_dst(jd, iptr, d);
1321                         break;
1322
1323                 case ICMD_SALOAD:     /* ..., arrayref, index  ==> ..., value         */
1324
1325                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1326                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1327                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1328                         /* implicit null-pointer check */
1329                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1330                         M_AADD(s2, s1, REG_ITMP3);
1331                         M_AADD(s2, REG_ITMP3, REG_ITMP3);
1332                         M_SLDS(d, REG_ITMP3, OFFSET(java_shortarray, data[0]));
1333                         emit_store_dst(jd, iptr, d);
1334                         break;
1335
1336                 case ICMD_IALOAD:     /* ..., arrayref, index  ==> ..., value         */
1337
1338                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1339                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1340                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1341                         /* implicit null-pointer check */
1342                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1343                         M_ASLL_IMM(s2, 2, REG_ITMP3);
1344                         M_AADD(REG_ITMP3, s1, REG_ITMP3);
1345                         M_ILD(d, REG_ITMP3, OFFSET(java_intarray, data[0]));
1346                         emit_store_dst(jd, iptr, d);
1347                         break;
1348
1349                 case ICMD_LALOAD:     /* ..., arrayref, index  ==> ..., value         */
1350
1351                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1352                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1353                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1354                         /* implicit null-pointer check */
1355                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1356                         M_ASLL_IMM(s2, 3, REG_ITMP3);
1357                         M_AADD(REG_ITMP3, s1, REG_ITMP3);
1358                         M_LDX(d, REG_ITMP3, OFFSET(java_longarray, data[0]));
1359                         emit_store_dst(jd, iptr, d);
1360                         break;
1361
1362                 case ICMD_FALOAD:     /* ..., arrayref, index  ==> ..., value         */
1363
1364                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1365                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1366                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1367                         /* implicit null-pointer check */
1368                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1369                         M_ASLL_IMM(s2, 2, REG_ITMP3);
1370                         M_AADD(REG_ITMP3, s1, REG_ITMP3);
1371                         M_FLD(d, REG_ITMP3, OFFSET(java_floatarray, data[0]));
1372                         emit_store_dst(jd, iptr, d);
1373                         break;
1374
1375                 case ICMD_DALOAD:     /* ..., arrayref, index  ==> ..., value         */
1376
1377                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1378                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1379                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1380                         /* implicit null-pointer check */
1381                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1382                         M_ASLL_IMM(s2, 3, REG_ITMP3);
1383                         M_AADD(REG_ITMP3, s1, REG_ITMP3);
1384                         M_DLD(d, REG_ITMP3, OFFSET(java_doublearray, data[0]));
1385                         emit_store_dst(jd, iptr, d);
1386                         break;
1387
1388                 case ICMD_AALOAD:     /* ..., arrayref, index  ==> ..., value         */
1389
1390                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1391                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1392                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1393                         /* implicit null-pointer check */
1394                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1395                         M_ASLL_IMM(s2, POINTERSHIFT, REG_ITMP3);
1396                         M_AADD(REG_ITMP3, s1, REG_ITMP3);
1397                         M_ALD(d, REG_ITMP3, OFFSET(java_objectarray, data[0]));
1398                         emit_store_dst(jd, iptr, d);
1399                         break;
1400
1401
1402                 case ICMD_BASTORE:    /* ..., arrayref, index, value  ==> ...         */
1403
1404                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1405                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1406                         /* implicit null-pointer check */
1407                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1408                         M_AADD(s2, s1, REG_ITMP1);
1409                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1410                         M_BST(s3, REG_ITMP1, OFFSET(java_bytearray, data[0]));
1411                         break;
1412
1413                 case ICMD_CASTORE:    /* ..., arrayref, index, value  ==> ...         */
1414                 case ICMD_SASTORE:    /* ..., arrayref, index, value  ==> ...         */
1415
1416                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1417                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1418                         /* implicit null-pointer check */
1419                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1420                         M_AADD(s2, s1, REG_ITMP1);
1421                         M_AADD(s2, REG_ITMP1, REG_ITMP1);
1422                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1423                         M_SST(s3, REG_ITMP1, OFFSET(java_chararray, data[0]));
1424                         break;
1425
1426                 case ICMD_IASTORE:    /* ..., arrayref, index, value  ==> ...         */
1427
1428                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1429                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1430                         /* implicit null-pointer check */
1431                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1432                         M_ASLL_IMM(s2, 2, REG_ITMP2);
1433                         M_AADD(REG_ITMP2, s1, REG_ITMP1);
1434                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1435                         M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_intarray, data[0]));
1436                         break;
1437
1438                 case ICMD_LASTORE:    /* ..., arrayref, index, value  ==> ...         */
1439
1440                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1441                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1442                         /* implicit null-pointer check */
1443                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1444                         M_ASLL_IMM(s2, 3, REG_ITMP2);
1445                         M_AADD(REG_ITMP2, s1, REG_ITMP1);
1446                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1447                         M_STX_INTERN(s3, REG_ITMP1, OFFSET(java_longarray, data[0]));
1448                         break;
1449
1450                 case ICMD_FASTORE:    /* ..., arrayref, index, value  ==> ...         */
1451
1452                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1453                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1454                         /* implicit null-pointer check */
1455                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1456                         M_ASLL_IMM(s2, 2, REG_ITMP2);
1457                         M_AADD(REG_ITMP2, s1, REG_ITMP1);
1458                         s3 = emit_load_s3(jd, iptr, REG_FTMP1);
1459                         M_FST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray, data[0]));
1460                         break;
1461
1462                 case ICMD_DASTORE:    /* ..., arrayref, index, value  ==> ...         */
1463
1464                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1465                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1466                         /* implicit null-pointer check */
1467                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1468                         M_ASLL_IMM(s2, 3, REG_ITMP2);
1469                         M_AADD(REG_ITMP2, s1, REG_ITMP1);
1470                         s3 = emit_load_s3(jd, iptr, REG_FTMP1);
1471                         M_DST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray, data[0]));
1472                         break;
1473
1474
1475                 case ICMD_AASTORE:    /* ..., arrayref, index, value  ==> ...         */
1476
1477                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1478                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1479                         /* implicit null-pointer check */
1480                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1481                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1482
1483                         M_MOV(s1, REG_OUT0);
1484                         M_MOV(s3, REG_OUT1);
1485                         disp = dseg_add_functionptr(cd, BUILTIN_canstore);
1486                         M_ALD(REG_ITMP3, REG_PV, disp);
1487                         M_JMP(REG_RA_CALLER, REG_ITMP3, REG_ZERO);
1488                         M_NOP;
1489                         emit_exception_check(cd, iptr);
1490
1491                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1492                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1493                         M_ASLL_IMM(s2, POINTERSHIFT, REG_ITMP2);
1494                         M_AADD(REG_ITMP2, s1, REG_ITMP1);
1495                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1496                         /* implicit null-pointer check */
1497                         M_AST_INTERN(s3, REG_ITMP1, OFFSET(java_objectarray, data[0]));
1498                         break;
1499
1500
1501                 case ICMD_BASTORECONST:   /* ..., arrayref, index  ==> ...            */
1502
1503                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1504                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1505                         /* implicit null-pointer check */
1506                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1507                         M_AADD(s2, s1, REG_ITMP1);
1508                         M_BST(REG_ZERO, REG_ITMP1, OFFSET(java_bytearray, data[0]));
1509                         break;
1510
1511                 case ICMD_CASTORECONST:   /* ..., arrayref, index  ==> ...            */
1512                 case ICMD_SASTORECONST:   /* ..., arrayref, index  ==> ...            */
1513
1514                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1515                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1516                         /* implicit null-pointer check */
1517                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1518                         M_AADD(s2, s1, REG_ITMP1);
1519                         M_AADD(s2, REG_ITMP1, REG_ITMP1);
1520                         M_SST(REG_ZERO, REG_ITMP1, OFFSET(java_chararray, data[0]));
1521                         break;
1522
1523                 case ICMD_IASTORECONST:   /* ..., arrayref, index  ==> ...            */
1524
1525                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1526                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1527                         /* implicit null-pointer check */
1528                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1529                         M_ASLL_IMM(s2, 2, REG_ITMP2);
1530                         M_AADD(REG_ITMP2, s1, REG_ITMP1);
1531                         M_IST_INTERN(REG_ZERO, REG_ITMP1, OFFSET(java_intarray, data[0]));
1532                         break;
1533
1534                 case ICMD_LASTORECONST:   /* ..., arrayref, index  ==> ...            */
1535
1536                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1537                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1538                         /* implicit null-pointer check */
1539                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1540                         M_ASLL_IMM(s2, 3, REG_ITMP2);
1541                         M_AADD(REG_ITMP2, s1, REG_ITMP1);
1542                         M_STX_INTERN(REG_ZERO, REG_ITMP1, OFFSET(java_longarray, data[0]));
1543                         break;
1544
1545                 case ICMD_AASTORECONST:   /* ..., arrayref, index  ==> ...            */
1546
1547                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1548                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1549                         /* implicit null-pointer check */
1550                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1551                         M_ASLL_IMM(s2, POINTERSHIFT, REG_ITMP2);
1552                         M_AADD(REG_ITMP2, s1, REG_ITMP1);
1553                         M_AST_INTERN(REG_ZERO, REG_ITMP1, OFFSET(java_objectarray, data[0]));
1554                         break;
1555
1556
1557                 case ICMD_GETSTATIC:  /* ...  ==> ..., value                          */
1558
1559                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1560                                 uf = iptr->sx.s23.s3.uf;
1561                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1562                                 disp      = dseg_add_unique_address(cd, uf);
1563
1564                                 codegen_add_patch_ref(cd, PATCHER_get_putstatic, uf, disp);
1565                         }
1566                         else {
1567                                 fi = iptr->sx.s23.s3.fmiref->p.field;
1568                                 fieldtype = fi->type;
1569                                 disp = dseg_add_address(cd, &(fi->value));
1570
1571                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class))
1572                                         codegen_add_patch_ref(cd, PATCHER_clinit, fi->class, disp);
1573                         }
1574
1575                         M_ALD(REG_ITMP1, REG_PV, disp);
1576
1577                         switch (fieldtype) {
1578                         case TYPE_INT:
1579                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1580                                 M_ILD_INTERN(d, REG_ITMP1, 0);
1581                                 break;
1582                         case TYPE_LNG:
1583                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1584                                 M_LDX_INTERN(d, REG_ITMP1, 0);
1585                                 break;
1586                         case TYPE_ADR:
1587                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1588                                 M_ALD_INTERN(d, REG_ITMP1, 0);
1589                                 break;
1590                         case TYPE_FLT:
1591                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1592                                 M_FLD_INTERN(d, REG_ITMP1, 0);
1593                                 break;
1594                         case TYPE_DBL:
1595                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1596                                 M_DLD_INTERN(d, REG_ITMP1, 0);
1597                                 break;
1598                         }
1599                         emit_store_dst(jd, iptr, d);
1600                         break;
1601
1602                 case ICMD_PUTSTATIC:  /* ..., value  ==> ...                          */
1603
1604                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1605                                 uf = iptr->sx.s23.s3.uf;
1606                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1607                                 disp      = dseg_add_unique_address(cd, uf);
1608
1609                                 codegen_add_patch_ref(cd, PATCHER_get_putstatic, uf, disp);
1610                         }
1611                         else {
1612                                 fi = iptr->sx.s23.s3.fmiref->p.field;
1613                                 fieldtype = fi->type;
1614                                 disp = dseg_add_address(cd, &(fi->value));
1615
1616                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class))
1617                                         codegen_add_patch_ref(cd, PATCHER_clinit, fi->class, disp);
1618                         }
1619
1620                         M_ALD(REG_ITMP1, REG_PV, disp);
1621
1622                         switch (fieldtype) {
1623                         case TYPE_INT:
1624                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1625                                 M_IST_INTERN(s1, REG_ITMP1, 0);
1626                                 break;
1627                         case TYPE_LNG:
1628                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1629                                 M_STX_INTERN(s1, REG_ITMP1, 0);
1630                                 break;
1631                         case TYPE_ADR:
1632                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1633                                 M_AST_INTERN(s1, REG_ITMP1, 0);
1634                                 break;
1635                         case TYPE_FLT:
1636                                 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1637                                 M_FST_INTERN(s1, REG_ITMP1, 0);
1638                                 break;
1639                         case TYPE_DBL:
1640                                 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1641                                 M_DST_INTERN(s1, REG_ITMP1, 0);
1642                                 break;
1643                         }
1644                         break;
1645
1646                 case ICMD_PUTSTATICCONST: /* ...  ==> ...                             */
1647                                           /* val = value (in current instruction)     */
1648                                           /* following NOP)                           */
1649
1650                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1651                                 uf        = iptr->sx.s23.s3.uf;
1652                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1653                                 disp = dseg_add_unique_address(cd, uf);
1654
1655                                 codegen_add_patch_ref(cd, PATCHER_get_putstatic, uf, disp);
1656                         }
1657                         else {
1658                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1659                                 fieldtype = fi->type;
1660                                 disp      = dseg_add_address(cd, &(fi->value));
1661
1662                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class))
1663                                         codegen_add_patch_ref(cd, PATCHER_clinit, fi->class, disp);
1664                         }
1665
1666                         M_ALD(REG_ITMP1, REG_PV, disp);
1667
1668                         switch (fieldtype) {
1669                         case TYPE_INT:
1670                                 M_IST_INTERN(REG_ZERO, REG_ITMP1, 0);
1671                                 break;
1672                         case TYPE_LNG:
1673                                 M_STX_INTERN(REG_ZERO, REG_ITMP1, 0);
1674                                 break;
1675                         case TYPE_ADR:
1676                                 M_AST_INTERN(REG_ZERO, REG_ITMP1, 0);
1677                                 break;
1678                         case TYPE_FLT:
1679                                 M_FST_INTERN(REG_ZERO, REG_ITMP1, 0);
1680                                 break;
1681                         case TYPE_DBL:
1682                                 M_DST_INTERN(REG_ZERO, REG_ITMP1, 0);
1683                                 break;
1684                         }
1685                         break;
1686
1687
1688                 case ICMD_GETFIELD:   /* ...  ==> ..., value                          */
1689
1690                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1691                         emit_nullpointer_check(cd, iptr, s1);
1692
1693                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1694                                 uf = iptr->sx.s23.s3.uf;
1695
1696                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1697                                 disp      = 0;
1698
1699                                 codegen_add_patch_ref(cd, PATCHER_get_putfield, uf, 0);
1700                         }
1701                         else {
1702                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1703                                 fieldtype = fi->type;
1704                                 disp      = fi->offset;
1705                         }
1706
1707                         switch (fieldtype) {
1708                         case TYPE_INT:
1709                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1710                                 M_ILD(d, s1, disp);
1711                                 break;
1712                         case TYPE_LNG:
1713                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1714                                 M_LDX(d, s1, disp);
1715                                 break;
1716                         case TYPE_ADR:
1717                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1718                                 M_ALD(d, s1, disp);
1719                                 break;
1720                         case TYPE_FLT:
1721                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1722                                 M_FLD(d, s1, disp);
1723                                 break;
1724                         case TYPE_DBL:
1725                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1726                                 M_DLD(d, s1, disp);
1727                                 break;
1728                         default:
1729                                 assert(0);
1730                                 break;
1731                         }
1732                         emit_store_dst(jd, iptr, d);
1733                         break;
1734
1735                 case ICMD_PUTFIELD:   /* ..., objectref, value  ==> ...               */
1736
1737                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1738                         emit_nullpointer_check(cd, iptr, s1);
1739
1740                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1741                                 uf = iptr->sx.s23.s3.uf;
1742                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1743                                 disp      = 0;
1744                         }
1745                         else {
1746                                 uf        = NULL;
1747                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1748                                 fieldtype = fi->type;
1749                                 disp      = fi->offset;
1750                                 }
1751
1752                         if (IS_INT_LNG_TYPE(fieldtype))
1753                                 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1754                         else
1755                                 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1756
1757                         if (INSTRUCTION_IS_UNRESOLVED(iptr))
1758                                 codegen_add_patch_ref(cd, PATCHER_get_putfield, uf, 0);
1759
1760                         switch (fieldtype) {
1761                         case TYPE_INT:
1762                                 M_IST(s2, s1, disp);
1763                                 break;
1764                         case TYPE_LNG:
1765                                 M_STX(s2, s1, disp);
1766                                 break;
1767                         case TYPE_ADR:
1768                                 M_AST(s2, s1, disp);
1769                                 break;
1770                         case TYPE_FLT:
1771                                 M_FST(s2, s1, disp);
1772                                 break;
1773                         case TYPE_DBL:
1774                                 M_DST(s2, s1, disp);
1775                                 break;
1776                         default:
1777                                 assert(0);
1778                                 break;
1779                         }
1780                         break;
1781
1782                 case ICMD_PUTFIELDCONST:  /* ..., objectref  ==> ...                  */
1783                                           /* val = value (in current instruction)     */
1784                                           /* following NOP)                           */
1785
1786                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1787                         emit_nullpointer_check(cd, iptr, s1);
1788
1789                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1790                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1791
1792                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1793
1794                                 codegen_addpatchref(cd, PATCHER_get_putfield,
1795                                                                         uf, 0);
1796
1797                                 if (opt_showdisassemble) {
1798                                         M_NOP; M_NOP;
1799                                 }
1800
1801                                 disp = 0;
1802
1803                         } else {
1804                         {
1805                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1806
1807                                 fieldtype = fi->type;
1808                                 disp = fi->offset;
1809                         }
1810
1811                         }
1812
1813                         switch (fieldtype) {
1814                         case TYPE_INT:
1815                                 M_IST(REG_ZERO, s1, disp);
1816                                 break;
1817                         case TYPE_LNG:
1818                                 M_STX(REG_ZERO, s1, disp);
1819                                 break;
1820                         case TYPE_ADR:
1821                                 M_AST(REG_ZERO, s1, disp);
1822                                 break;
1823                         case TYPE_FLT:
1824                                 M_FST(REG_ZERO, s1, disp);
1825                                 break;
1826                         case TYPE_DBL:
1827                                 M_DST(REG_ZERO, s1, disp);
1828                                 break;
1829                         }
1830                         break;
1831
1832
1833                 /* branch operations **************************************************/
1834
1835                 case ICMD_ATHROW:       /* ..., objectref ==> ... (, objectref)       */
1836
1837                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1838                         M_INTMOVE(s1, REG_ITMP2_XPTR);
1839
1840 #ifdef ENABLE_VERIFIER
1841                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1842                                 unresolved_class *uc = iptr->sx.s23.s2.uc;
1843
1844                                 codegen_add_patch_ref(cd, PATCHER_athrow_areturn, uc, 0);
1845                         }
1846 #endif /* ENABLE_VERIFIER */
1847
1848                         disp = dseg_add_functionptr(cd, asm_handle_exception);
1849                         M_ALD(REG_ITMP1, REG_PV, disp);
1850                         M_JMP(REG_ITMP3_XPC, REG_ITMP1, REG_ZERO);
1851                         M_NOP;
1852                         M_NOP;              /* nop ensures that XPC is less than the end */
1853                                             /* of basic block                            */
1854                         ALIGNCODENOP;
1855                         break;
1856
1857                 case ICMD_GOTO:         /* ... ==> ...                                */
1858                 case ICMD_RET:          /* ... ==> ...                                */
1859
1860                         emit_br(cd, iptr->dst.block);
1861                         ALIGNCODENOP;
1862                         break;
1863
1864                 case ICMD_JSR:          /* ... ==> ...                                */
1865
1866                         emit_br(cd, iptr->sx.s23.s3.jsrtarget.block);
1867                         ALIGNCODENOP;
1868                         break;
1869
1870                 case ICMD_IFNULL:       /* ..., value ==> ...                         */
1871                 case ICMD_IFNONNULL:
1872
1873                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1874                         emit_bccz(cd, iptr->dst.block, iptr->opc - ICMD_IFNULL, s1, BRANCH_OPT_NONE);
1875                         break;
1876
1877                 /* Note: int compares must not branch on the register directly.       */
1878                 /* Reason is, that register content is not 32-bit clean.              */
1879
1880                 case ICMD_IFEQ:         /* ..., value ==> ...                         */
1881
1882                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1883
1884                         if ((iptr->sx.val.i >= -4096) && (iptr->sx.val.i <= 4095)) {
1885                                 M_CMP_IMM(s1, iptr->sx.val.i);
1886                         }
1887                         else {
1888                                 ICONST(REG_ITMP2, iptr->sx.val.i);
1889                                 M_CMP(s1, REG_ITMP2);
1890                         }
1891                         emit_beq(cd, iptr->dst.block);
1892                         break;
1893
1894                 case ICMD_IFLT:         /* ..., value ==> ...                         */
1895
1896                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1897
1898                         if ((iptr->sx.val.i >= -4096) && (iptr->sx.val.i <= 4095)) {
1899                                 M_CMP_IMM(s1, iptr->sx.val.i);
1900                         }
1901                         else {
1902                                 ICONST(REG_ITMP2, iptr->sx.val.i);
1903                                 M_CMP(s1, REG_ITMP2);
1904                         }
1905                         emit_blt(cd, iptr->dst.block);
1906                         break;
1907
1908                 case ICMD_IFLE:         /* ..., value ==> ...                         */
1909
1910                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1911
1912                         if ((iptr->sx.val.i >= -4096) && (iptr->sx.val.i <= 4095)) {
1913                                 M_CMP_IMM(s1, iptr->sx.val.i);
1914                         }
1915                         else {
1916                                 ICONST(REG_ITMP2, iptr->sx.val.i);
1917                                 M_CMP(s1, REG_ITMP2);
1918                         }
1919                         emit_ble(cd, iptr->dst.block);
1920                         break;
1921
1922                 case ICMD_IFNE:         /* ..., value ==> ...                         */
1923
1924                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1925
1926                         if ((iptr->sx.val.i >= -4096) && (iptr->sx.val.i <= 4095)) {
1927                                 M_CMP_IMM(s1, iptr->sx.val.i);
1928                         }
1929                         else {
1930                                 ICONST(REG_ITMP2, iptr->sx.val.i);
1931                                 M_CMP(s1, REG_ITMP2);
1932                         }
1933                         emit_bne(cd, iptr->dst.block);
1934                         break;
1935
1936                 case ICMD_IFGT:         /* ..., value ==> ...                         */
1937
1938                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1939
1940                         if ((iptr->sx.val.i >= -4096) && (iptr->sx.val.i <= 4095)) {
1941                                 M_CMP_IMM(s1, iptr->sx.val.i);
1942                         }
1943                         else {
1944                                 ICONST(REG_ITMP2, iptr->sx.val.i);
1945                                 M_CMP(s1, REG_ITMP2);
1946                         }
1947                         emit_bgt(cd, iptr->dst.block);
1948                         break;
1949
1950                 case ICMD_IFGE:         /* ..., value ==> ...                         */
1951
1952                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1953
1954                         if ((iptr->sx.val.i >= -4096) && (iptr->sx.val.i <= 4095)) {
1955                                 M_CMP_IMM(s1, iptr->sx.val.i);
1956                         }
1957                         else {
1958                                 ICONST(REG_ITMP2, iptr->sx.val.i);
1959                                 M_CMP(s1, REG_ITMP2);
1960                         }
1961                         emit_bge(cd, iptr->dst.block);
1962                         break;
1963
1964                 case ICMD_IF_LEQ:       /* ..., value ==> ...                         */
1965
1966                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1967                         if (iptr->sx.val.l == 0)
1968                                 emit_beqz(cd, iptr->dst.block, s1);
1969                         else {
1970                                 if ((iptr->sx.val.l >= -4096) && (iptr->sx.val.l <= 4095)) {
1971                                         M_CMP_IMM(s1, iptr->sx.val.l);
1972                                 }
1973                                 else {
1974                                         LCONST(REG_ITMP2, iptr->sx.val.l);
1975                                         M_CMP(s1, REG_ITMP2);
1976                                 }
1977                                 emit_beq_xcc(cd, iptr->dst.block);
1978                         }
1979                         break;
1980
1981                 case ICMD_IF_LLT:       /* ..., value ==> ...                         */
1982
1983                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1984                         if (iptr->sx.val.l == 0)
1985                                 emit_bltz(cd, iptr->dst.block, s1);
1986                         else {
1987                                 if ((iptr->sx.val.l >= -4096) && (iptr->sx.val.l <= 4095)) {
1988                                         M_CMP_IMM(s1, iptr->sx.val.l);
1989                                 }
1990                                 else {
1991                                         LCONST(REG_ITMP2, iptr->sx.val.l);
1992                                         M_CMP(s1, REG_ITMP2);
1993                                 }
1994                                 emit_blt_xcc(cd, iptr->dst.block);
1995                         }
1996                         break;
1997
1998                 case ICMD_IF_LLE:       /* ..., value ==> ...                         */
1999
2000                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2001                         if (iptr->sx.val.l == 0)
2002                                 emit_blez(cd, iptr->dst.block, s1);
2003                         else {
2004                                 if ((iptr->sx.val.l >= -4096) && (iptr->sx.val.l <= 4095)) {
2005                                         M_CMP_IMM(s1, iptr->sx.val.l);
2006                                 }
2007                                 else {
2008                                         LCONST(REG_ITMP2, iptr->sx.val.l);
2009                                         M_CMP(s1, REG_ITMP2);
2010                                 }
2011                                 emit_ble_xcc(cd, iptr->dst.block);
2012                         }
2013                         break;
2014
2015                 case ICMD_IF_LNE:       /* ..., value ==> ...                         */
2016
2017                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2018                         if (iptr->sx.val.l == 0)
2019                                 emit_bnez(cd, iptr->dst.block, s1);
2020                         else {
2021                                 if ((iptr->sx.val.l >= -4096) && (iptr->sx.val.l <= 4095)) {
2022                                         M_CMP_IMM(s1, iptr->sx.val.l);
2023                                 }
2024                                 else {
2025                                         LCONST(REG_ITMP2, iptr->sx.val.l);
2026                                         M_CMP(s1, REG_ITMP2);
2027                                 }
2028                                 emit_bne_xcc(cd, iptr->dst.block);
2029                         }
2030                         break;
2031
2032                 case ICMD_IF_LGT:       /* ..., value ==> ...                         */
2033
2034                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2035                         if (iptr->sx.val.l == 0)
2036                                 emit_bgtz(cd, iptr->dst.block, s1);
2037                         else {
2038                                 if ((iptr->sx.val.l >= -4096) && (iptr->sx.val.l <= 4095)) {
2039                                         M_CMP_IMM(s1, iptr->sx.val.l);
2040                                 }
2041                                 else {
2042                                         LCONST(REG_ITMP2, iptr->sx.val.l);
2043                                         M_CMP(s1, REG_ITMP2);
2044                                 }
2045                                 emit_bgt_xcc(cd, iptr->dst.block);
2046                         }
2047                         break;
2048
2049                 case ICMD_IF_LGE:       /* ..., value ==> ...                         */
2050
2051                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2052                         if (iptr->sx.val.l == 0)
2053                                 emit_bgez(cd, iptr->dst.block, s1);
2054                         else {
2055                                 if ((iptr->sx.val.l >= -4096) && (iptr->sx.val.l <= 4095)) {
2056                                         M_CMP_IMM(s1, iptr->sx.val.l);
2057                                 }
2058                                 else {
2059                                         LCONST(REG_ITMP2, iptr->sx.val.l);
2060                                         M_CMP(s1, REG_ITMP2);
2061                                 }
2062                                 emit_bge_xcc(cd, iptr->dst.block);
2063                         }
2064                         break;
2065
2066
2067                 case ICMD_IF_ACMPEQ:    /* ..., value, value ==> ...                  */
2068                 case ICMD_IF_LCMPEQ:    /* op1 = target JavaVM pc                     */
2069
2070                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2071                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2072                         M_CMP(s1, s2);
2073                         emit_beq_xcc(cd, iptr->dst.block);
2074                         break;
2075
2076                 case ICMD_IF_ICMPEQ:    /* 32-bit compare                             */
2077
2078                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2079                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2080                         M_CMP(s1, s2);
2081                         emit_beq(cd, iptr->dst.block);
2082                         break;
2083
2084                 case ICMD_IF_ACMPNE:    /* ..., value, value ==> ...                  */
2085                 case ICMD_IF_LCMPNE:    /* op1 = target JavaVM pc                     */
2086
2087                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2088                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2089                         M_CMP(s1, s2);
2090                         emit_bne_xcc(cd, iptr->dst.block);
2091                         break;
2092
2093                 case ICMD_IF_ICMPNE:    /* 32-bit compare                             */
2094
2095                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2096                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2097                         M_CMP(s1, s2);
2098                         emit_bne(cd, iptr->dst.block);
2099                         break;
2100
2101                 case ICMD_IF_LCMPLT:    /* ..., value, value ==> ...                  */
2102
2103                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2104                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2105                         M_CMP(s1, s2);
2106                         emit_blt_xcc(cd, iptr->dst.block);
2107                         break;
2108
2109                 case ICMD_IF_ICMPLT:    /* 32-bit compare                             */
2110
2111                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2112                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2113                         M_CMP(s1, s2);
2114                         emit_blt(cd, iptr->dst.block);
2115                         break;
2116
2117                 case ICMD_IF_LCMPGT:    /* ..., value, value ==> ...                  */
2118
2119                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2120                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2121                         M_CMP(s1, s2);
2122                         emit_bgt_xcc(cd, iptr->dst.block);
2123                         break;
2124
2125                 case ICMD_IF_ICMPGT:    /* 32-bit compare                             */
2126
2127                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2128                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2129                         M_CMP(s1, s2);
2130                         emit_bgt(cd, iptr->dst.block);
2131                         break;
2132
2133                 case ICMD_IF_LCMPLE:    /* ..., value, value ==> ...                  */
2134
2135                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2136                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2137                         M_CMP(s1, s2);
2138                         emit_ble_xcc(cd, iptr->dst.block);
2139                         break;
2140
2141                 case ICMD_IF_ICMPLE:    /* 32-bit compare                             */
2142
2143                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2144                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2145                         M_CMP(s1, s2);
2146                         emit_ble(cd, iptr->dst.block);
2147                         break;
2148
2149
2150                 case ICMD_IF_LCMPGE:    /* ..., value, value ==> ...                  */
2151
2152                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2153                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2154                         M_CMP(s1, s2);
2155                         emit_bge_xcc(cd, iptr->dst.block);
2156                         break;
2157
2158                 case ICMD_IF_ICMPGE:    /* 32-bit compare                             */
2159
2160                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2161                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2162                         M_CMP(s1, s2);
2163                         emit_bge(cd, iptr->dst.block);
2164                         break;
2165
2166
2167                 case ICMD_IRETURN:      /* ..., retvalue ==> ...                      */
2168                 case ICMD_LRETURN:
2169
2170                         s1 = emit_load_s1(jd, iptr, REG_RESULT_CALLEE);
2171                         M_INTMOVE(s1, REG_RESULT_CALLEE);
2172                         goto nowperformreturn;
2173
2174                 case ICMD_ARETURN:      /* ..., retvalue ==> ...                      */
2175
2176                         s1 = emit_load_s1(jd, iptr, REG_RESULT_CALLEE);
2177                         M_INTMOVE(s1, REG_RESULT_CALLEE);
2178
2179 #ifdef ENABLE_VERIFIER
2180                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2181                                 unresolved_class *uc = iptr->sx.s23.s2.uc;
2182
2183                                 codegen_add_patch_ref(cd, PATCHER_athrow_areturn, uc, 0);
2184                         }
2185 #endif /* ENABLE_VERIFIER */
2186                         goto nowperformreturn;
2187
2188                 case ICMD_FRETURN:      /* ..., retvalue ==> ...                      */
2189                 case ICMD_DRETURN:
2190
2191                         s1 = emit_load_s1(jd, iptr, REG_FRESULT);
2192                         M_DBLMOVE(s1, REG_FRESULT);
2193                         goto nowperformreturn;
2194
2195                 case ICMD_RETURN:       /* ...  ==> ...                               */
2196
2197 nowperformreturn:
2198                         {
2199                         s4 i, p;
2200
2201                         p = cd->stackframesize;
2202
2203 #if !defined(NDEBUG)
2204                         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
2205                                 emit_verbosecall_exit(jd);
2206 #endif
2207
2208 #if defined(ENABLE_THREADS)
2209                         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
2210 /* XXX: REG_RESULT is save, but what about FRESULT? */
2211                                 M_ALD(rd->argintregs[0], REG_SP, rd->memuse * 8); /* XXX: what for ? */
2212
2213                                 switch (iptr->opc) {
2214                                 case ICMD_FRETURN:
2215                                 case ICMD_DRETURN:
2216                                         M_DST(REG_FRESULT, REG_SP, rd->memuse * 8);
2217                                         break;
2218                                 }
2219
2220                                 disp = dseg_add_functionptr(cd, BUILTIN_monitorexit);
2221                                 M_ALD(REG_ITMP3, REG_PV, disp);
2222                                 M_JMP(REG_RA_CALLER, REG_ITMP3, REG_ZERO); /*REG_RA_CALLER */
2223
2224                                 switch (iptr->opc) {
2225                                 case ICMD_FRETURN:
2226                                 case ICMD_DRETURN:
2227                                         M_DLD(REG_FRESULT, REG_SP, rd->memuse * 8);
2228                                         break;
2229                                 }
2230                         }
2231 #endif
2232
2233
2234
2235                         M_RETURN(REG_RA_CALLEE, 8); /* implicit window restore */
2236                         M_NOP;
2237                         ALIGNCODENOP;
2238                         }
2239                         break;
2240
2241                 case ICMD_TABLESWITCH:  /* ..., index ==> ...                         */
2242                         {
2243                         s4 i, l;
2244                         branch_target_t *table;
2245
2246                         table = iptr->dst.table;
2247
2248                         l = iptr->sx.s23.s2.tablelow;
2249                         i = iptr->sx.s23.s3.tablehigh;
2250
2251                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2252                         if (l == 0) {
2253                                 M_INTMOVE(s1, REG_ITMP1);
2254                         }
2255                         else if (l <= 4095) {
2256                                 M_ADD_IMM(s1, -l, REG_ITMP1);
2257                         }
2258                         else {
2259                                 ICONST(REG_ITMP2, l);
2260                                 /* XXX: do I need to truncate s1 to 32-bit ? */
2261                                 M_SUB(s1, REG_ITMP2, REG_ITMP1);
2262                         }
2263                         i = i - l + 1;
2264
2265
2266                         /* range check */
2267
2268                         if (i <= 4095) {
2269                                 M_CMP_IMM(REG_ITMP1, i - 1);
2270                         }
2271                         else {
2272                                 ICONST(REG_ITMP2, i - 1);
2273                                 M_CMP(REG_ITMP1, REG_ITMP2);
2274                         }
2275                         emit_bugt(cd, table[0].block); /* default target */
2276
2277                         /* build jump table top down and use address of lowest entry */
2278
2279                         table += i;
2280
2281                         while (--i >= 0) {
2282                                 dseg_add_target(cd, table->block);
2283                                 --table;
2284                                 }
2285                         }
2286
2287                         /* length of dataseg after last dseg_addtarget is used by load */
2288
2289                         M_ASLL_IMM(REG_ITMP1, POINTERSHIFT, REG_ITMP1);
2290                         M_AADD(REG_ITMP1, REG_PV, REG_ITMP2);
2291                         M_ALD(REG_ITMP2, REG_ITMP2, -(cd->dseglen));
2292                         M_JMP(REG_ZERO, REG_ITMP2, REG_ZERO);
2293                         M_NOP;
2294                         ALIGNCODENOP;
2295                         break;
2296
2297                 case ICMD_LOOKUPSWITCH: /* ..., key ==> ...                           */
2298                         {
2299                         s4 i;
2300                         lookup_target_t *lookup;
2301
2302                         lookup = iptr->dst.lookup;
2303
2304                         i = iptr->sx.s23.s2.lookupcount;
2305
2306                         MCODECHECK((i<<2)+8);
2307                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2308
2309                         while (--i >= 0) {
2310                                 if ((lookup->value >= -4096) && (lookup->value <= 4095)) {
2311                                         M_CMP_IMM(s1, lookup->value);
2312                                 } else {
2313                                         ICONST(REG_ITMP2, lookup->value);
2314                                         M_CMP(s1, REG_ITMP2);
2315                                 }
2316                                 emit_beq(cd, lookup->target.block);
2317                                 ++lookup;
2318                         }
2319
2320                         emit_br(cd, iptr->sx.s23.s3.lookupdefault.block);
2321                         ALIGNCODENOP;
2322                         break;
2323                         }
2324
2325
2326                 case ICMD_BUILTIN:      /* ..., arg1, arg2, arg3 ==> ...              */
2327
2328                         bte = iptr->sx.s23.s3.bte;
2329                         md = bte->md;
2330
2331                         /* XXX: builtin calling with stack arguments not implemented */
2332                         assert(md->paramcount <= 5 && md->argfltreguse <= 16);
2333
2334                         s3 = md->paramcount;
2335
2336                         MCODECHECK((s3 << 1) + 64);
2337
2338 #ifdef BUILTIN_FLOAT_ARGS /* float args for builtins disabled */
2339
2340                         /* copy float arguments according to ABI convention */
2341
2342                         int num_fltregargs = 0;
2343                         int fltregarg_inswap[16];
2344
2345                         for (s3 = s3 - 1; s3 >= 0; s3--) {
2346                                 var = VAR(iptr->sx.s23.s2.args[s3]);
2347
2348                                 if (IS_FLT_DBL_TYPE(var->type)) {
2349                                         if (!md->params[s3].inmemory) {
2350                                                 s1 = s3; /*native flt args use argument index directly*/
2351                                                 d = emit_load(jd, iptr, var, REG_FTMP1);
2352
2353                                                 M_DMOV(d, s1 + 16);
2354                                                 fltregarg_inswap[num_fltregargs] = s1;
2355                                                 num_fltregargs++;
2356                                                 /*printf("builtin: flt arg swap to %d\n", s1 + 16);*/
2357                                         }
2358                                         else {
2359                                                 assert(0);
2360                                         }
2361                                 }
2362                         }
2363
2364                         int i;
2365                         /* move swapped float args to target regs */
2366                         for (i = 0; i < num_fltregargs; i++) {
2367                                 s1 = fltregarg_inswap[i];
2368                                 M_DMOV(s1 + 16, s1);
2369                                 /*printf("builtin float arg to target reg: %d ==> %d\n", s1+16, s1);*/
2370                         }
2371
2372 #else
2373                         assert(md->argfltreguse == 0);
2374 #endif
2375
2376                         goto gen_method;
2377
2378                 case ICMD_INVOKESTATIC: /* ..., [arg1, [arg2 ...]] ==> ...            */
2379
2380                 case ICMD_INVOKESPECIAL:/* ..., objectref, [arg1, [arg2 ...]] ==> ... */
2381                 case ICMD_INVOKEVIRTUAL:/* op1 = arg count, val.a = method pointer    */
2382                 case ICMD_INVOKEINTERFACE:
2383
2384                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2385                                 lm = NULL;
2386                                 um = iptr->sx.s23.s3.um;
2387                                 md = um->methodref->parseddesc.md;
2388                         }
2389                         else {
2390                                 lm = iptr->sx.s23.s3.fmiref->p.method;
2391                                 um = NULL;
2392                                 md = lm->parseddesc;
2393                         }
2394
2395 gen_method:
2396                         s3 = md->paramcount;
2397
2398                         MCODECHECK((s3 << 1) + 64);
2399
2400                         /* copy arguments to registers or stack location                  */
2401
2402                         for (s3 = s3 - 1; s3 >= 0; s3--) {
2403                                 var = VAR(iptr->sx.s23.s2.args[s3]);
2404                                 d  = md->params[s3].regoff;
2405
2406                                 if (var->flags & PREALLOC)
2407                                         continue;
2408
2409                                 if (IS_INT_LNG_TYPE(var->type)) {
2410                                         if (!md->params[s3].inmemory) {
2411                                                 s1 = emit_load(jd, iptr, var, d);
2412                                                 M_INTMOVE(s1, d);
2413                                         }
2414                                         else {
2415                                                 s1 = emit_load(jd, iptr, var, REG_ITMP1);
2416                                                 M_STX(s1, REG_SP, JITSTACK + d * 8);
2417                                         }
2418                                 }
2419                                 else {
2420 #ifdef BUILTIN_FLOAT_ARGS
2421                                         if (iptr->opc == ICMD_BUILTIN)
2422                                                 continue;
2423 #endif
2424
2425                                         if (!md->params[s3].inmemory) {
2426                                                 s1 = emit_load(jd, iptr, var, d);
2427                                                 if (IS_2_WORD_TYPE(var->type))
2428                                                         M_DMOV(s1, d);
2429                                                 else
2430                                                         M_FMOV(s1, d);
2431                                         }
2432                                         else {
2433                                                 s1 = emit_load(jd, iptr, var, REG_FTMP1);
2434                                                 if (IS_2_WORD_TYPE(var->type))
2435                                                         M_DST(s1, REG_SP, JITSTACK + d * 8);
2436                                                 else
2437                                                         M_FST(s1, REG_SP, JITSTACK + d * 8);
2438                                         }
2439                                 }
2440                         }
2441
2442                         switch (iptr->opc) {
2443                         case ICMD_BUILTIN:
2444                                 disp = dseg_add_functionptr(cd, bte->fp);
2445
2446                                 M_ALD(REG_PV_CALLER, REG_PV, disp);  /* built-in-function pointer */
2447
2448                                 /* XXX jit-c-call */
2449                                 /* generate the actual call */
2450
2451                             M_JMP(REG_RA_CALLER, REG_PV_CALLER, REG_ZERO);
2452                             M_NOP;
2453                             disp = (s4) (cd->mcodeptr - cd->mcodebase);
2454                             /* REG_RA holds the value of the jmp instruction, therefore +8 */
2455                             M_LDA(REG_ZERO, REG_RA_CALLER, -disp + 8);
2456
2457                                 emit_exception_check(cd, iptr);
2458                                 if (md->returntype.type == TYPE_FLT) {
2459                                         /* special handling for float return value in %f0 */
2460                                         M_FMOV_INTERN(0,1);
2461                                 }
2462                                 break;
2463
2464                         case ICMD_INVOKESPECIAL:
2465                                 emit_nullpointer_check(cd, iptr, REG_OUT0);
2466                                 /* fall-through */
2467
2468                         case ICMD_INVOKESTATIC:
2469                                 if (lm == NULL) {
2470                                         disp = dseg_add_unique_address(cd, NULL);
2471
2472                                         codegen_add_patch_ref(cd, PATCHER_invokestatic_special,
2473                                                                                 um, disp);
2474                                 }
2475                                 else
2476                                         disp = dseg_add_address(cd, lm->stubroutine);
2477
2478                                 M_ALD(REG_PV_CALLER, REG_PV, disp);          /* method pointer in pv */
2479
2480                                 /* generate the actual call */
2481
2482                             M_JMP(REG_RA_CALLER, REG_PV_CALLER, REG_ZERO);
2483                             M_NOP;
2484                             disp = (s4) (cd->mcodeptr - cd->mcodebase);
2485                             /* REG_RA holds the value of the jmp instruction, therefore +8 */
2486                             M_LDA(REG_ZERO, REG_RA_CALLER, -disp + 8);
2487                                 break;
2488
2489                         case ICMD_INVOKEVIRTUAL:
2490                                 emit_nullpointer_check(cd, iptr, REG_OUT0);
2491
2492                                 if (lm == NULL) {
2493                                         codegen_add_patch_ref(cd, PATCHER_invokevirtual, um, 0);
2494
2495                                         s1 = 0;
2496                                 }
2497                                 else
2498                                         s1 = OFFSET(vftbl_t, table[0]) +
2499                                                 sizeof(methodptr) * lm->vftblindex;
2500
2501                                 /* implicit null-pointer check */
2502                                 M_ALD(REG_METHODPTR, REG_OUT0,OFFSET(java_objectheader, vftbl));
2503                                 M_ALD(REG_PV_CALLER, REG_METHODPTR, s1);
2504
2505                                 /* generate the actual call */
2506
2507                             M_JMP(REG_RA_CALLER, REG_PV_CALLER, REG_ZERO);
2508                             M_NOP;
2509                             disp = (s4) (cd->mcodeptr - cd->mcodebase);
2510                             /* REG_RA holds the value of the jmp instruction, therefore +8 */
2511                             M_LDA(REG_ZERO, REG_RA_CALLER, -disp + 8);
2512                                 break;
2513
2514                         case ICMD_INVOKEINTERFACE:
2515                                 emit_nullpointer_check(cd, iptr, REG_OUT0);
2516
2517                                 if (lm == NULL) {
2518                                         codegen_add_patch_ref(cd, PATCHER_invokeinterface, um, 0);
2519
2520                                         s1 = 0;
2521                                         s2 = 0;
2522                                 }
2523                                 else {
2524                                         s1 = OFFSET(vftbl_t, interfacetable[0]) -
2525                                                 sizeof(methodptr*) * lm->class->index;
2526
2527                                         s2 = sizeof(methodptr) * (lm - lm->class->methods);
2528                                 }
2529
2530                                 /* implicit null-pointer check */
2531                                 M_ALD(REG_METHODPTR, REG_OUT0, OFFSET(java_objectheader, vftbl));
2532                                 M_ALD(REG_METHODPTR, REG_METHODPTR, s1);
2533                                 M_ALD(REG_PV_CALLER, REG_METHODPTR, s2);
2534
2535                             /* generate the actual call */
2536
2537                             M_JMP(REG_RA_CALLER, REG_PV_CALLER, REG_ZERO);
2538                             M_NOP;
2539                             disp = (s4) (cd->mcodeptr - cd->mcodebase);
2540                             /* REG_RA holds the value of the jmp instruction, therefore +8 */
2541                             M_LDA(REG_ZERO, REG_RA_CALLER, -disp + 8);
2542                                 break;
2543                         }
2544
2545                         /* store return value */
2546
2547                         d = md->returntype.type;
2548
2549                         if (d != TYPE_VOID) {
2550                                 if (IS_INT_LNG_TYPE(d)) {
2551                                         s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT_CALLER);
2552                                         M_INTMOVE(REG_RESULT_CALLER, s1);
2553                                 }
2554                                 else {
2555                                         s1 = codegen_reg_of_dst(jd, iptr, REG_FRESULT);
2556                                         if (IS_2_WORD_TYPE(d)) {
2557                                                 M_DBLMOVE(REG_FRESULT, s1);
2558                                         } else {
2559                                                 M_FLTMOVE(REG_FRESULT, s1);
2560                                         }
2561                                 }
2562                                 emit_store_dst(jd, iptr, s1);
2563                         }
2564                         break;
2565
2566
2567                 case ICMD_CHECKCAST:  /* ..., objectref ==> ..., objectref            */
2568                                       /* val.a: (classinfo*) superclass               */
2569
2570                         /*  superclass is an interface:
2571                          *
2572                          *  OK if ((sub == NULL) ||
2573                          *         (sub->vftbl->interfacetablelength > super->index) &&
2574                          *         (sub->vftbl->interfacetable[-super->index] != NULL));
2575                          *
2576                          *  superclass is a class:
2577                          *
2578                          *  OK if ((sub == NULL) || (0
2579                          *         <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2580                          *         super->vftbl->diffvall));
2581                          */
2582
2583                         if (!(iptr->flags.bits & INS_FLAG_ARRAY)) {
2584                                 classinfo *super;
2585                                 s4         superindex;
2586
2587                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2588                                         super      = NULL;
2589                                         superindex = 0;
2590                                 }
2591                                 else {
2592                                         super = iptr->sx.s23.s3.c.cls;
2593                                         superindex = super->index;
2594                                 }
2595
2596 #if defined(ENABLE_THREADS)
2597                                 codegen_threadcritrestart(cd, cd->mcodeptr - cd->mcodebase);
2598 #endif
2599
2600                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2601
2602                                 /* if class is not resolved, check which code to call */
2603
2604                                 if (super == NULL) {
2605                                         emit_label_beqz(cd, BRANCH_LABEL_1, s1);
2606
2607                                         cr   = iptr->sx.s23.s3.c.ref;
2608                                         disp = dseg_add_unique_s4(cd, 0);         /* super->flags */
2609
2610                                         codegen_add_patch_ref(cd, PATCHER_checkcast_instanceof_flags,
2611                                                                                   cr, disp);
2612
2613                                         M_ILD(REG_ITMP2, REG_PV, disp);
2614                                         M_AND_IMM(REG_ITMP2, ACC_INTERFACE, REG_ITMP2);
2615                                         emit_label_beqz(cd, BRANCH_LABEL_2, REG_ITMP2);
2616                                 }
2617
2618                                 /* interface checkcast code */
2619
2620                                 if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2621                                         if (super == NULL) {
2622                                                 cr = iptr->sx.s23.s3.c.ref;
2623
2624                                                 codegen_add_patch_ref(cd, PATCHER_checkcast_interface,
2625                                                                                           cr, 0);
2626                                         }
2627                                         else {
2628                                                 emit_label_beqz(cd, BRANCH_LABEL_3, s1);
2629                                         }
2630
2631                                         M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2632                                         M_ILD(REG_ITMP3, REG_ITMP2,
2633                                                         OFFSET(vftbl_t, interfacetablelength));
2634                                         M_ADD_IMM(REG_ITMP3, -superindex, REG_ITMP3);
2635                                         emit_classcast_check(cd, iptr, ICMD_IFLE, REG_ITMP3, s1);
2636
2637                                         M_ALD(REG_ITMP3, REG_ITMP2,
2638                                                   OFFSET(vftbl_t, interfacetable[0]) -
2639                                                   superindex * sizeof(methodptr*));
2640                                         emit_classcast_check(cd, iptr, ICMD_IFEQ, REG_ITMP3, s1);
2641
2642                                         if (super == NULL)
2643                                                 emit_label_br(cd, BRANCH_LABEL_4);
2644                                         else
2645                                                 emit_label(cd, BRANCH_LABEL_3);
2646                                 }
2647
2648                                 /* class checkcast code */
2649
2650                                 if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2651                                         if (super == NULL) {
2652                                                 emit_label(cd, BRANCH_LABEL_2);
2653
2654                                                 cr   = iptr->sx.s23.s3.c.ref;
2655                                                 disp = dseg_add_unique_address(cd, NULL);
2656
2657                                                 codegen_add_patch_ref(cd,
2658                                                                                         PATCHER_checkcast_instanceof_class,
2659                                                                                           cr, disp);
2660                                         }
2661                                         else {
2662                                                 disp = dseg_add_address(cd, super->vftbl);
2663
2664                                                 emit_label_beqz(cd, BRANCH_LABEL_5, s1);
2665                                         }
2666
2667                                         M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2668                                         M_ALD(REG_ITMP3, REG_PV, disp);
2669 #if defined(ENABLE_THREADS)
2670                                         codegen_threadcritstart(cd, cd->mcodeptr - cd->mcodebase);
2671 #endif
2672                                         M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, baseval));
2673                                         M_ILD(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, baseval));
2674                                         M_SUB(REG_ITMP2, REG_ITMP3, REG_ITMP2);
2675                                         M_ALD(REG_ITMP3, REG_PV, disp);
2676                                         M_ILD(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, diffval));
2677 #if defined(ENABLE_THREADS)
2678                                         codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2679 #endif
2680                                         /*                              } */
2681                                         M_CMP(REG_ITMP3, REG_ITMP2);
2682                                         emit_classcast_check(cd, iptr, BRANCH_ULT, REG_ITMP3, s1);
2683
2684                                         if (super != NULL)
2685                                                 emit_label(cd, BRANCH_LABEL_5);
2686                                 }
2687
2688                                 if (super == NULL) {
2689                                         emit_label(cd, BRANCH_LABEL_1);
2690                                         emit_label(cd, BRANCH_LABEL_4);
2691                                 }
2692
2693                                 d = codegen_reg_of_dst(jd, iptr, s1);
2694                         }
2695                         else {
2696                                 /* array type cast-check */
2697
2698                                 s1 = emit_load_s1(jd, iptr, REG_OUT0);
2699                                 M_INTMOVE(s1, REG_OUT0);
2700
2701                                 disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2702
2703                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2704                                         cr   = iptr->sx.s23.s3.c.ref;
2705                                         disp = dseg_add_unique_address(cd, NULL);
2706
2707                                         codegen_add_patch_ref(cd, PATCHER_builtin_arraycheckcast,
2708                                                                                   cr, disp);
2709                                 }
2710                                 else
2711                                         disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2712
2713                                 M_ALD(REG_OUT1, REG_PV, disp);
2714                                 disp = dseg_add_functionptr(cd, BUILTIN_arraycheckcast);
2715                                 M_ALD(REG_ITMP3, REG_PV, disp);
2716                                 /* XXX jit-c-call */
2717                                 M_JMP(REG_RA_CALLER, REG_ITMP3, REG_ZERO);
2718                                 M_NOP;
2719
2720                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2721                                 emit_classcast_check(cd, iptr, ICMD_IFEQ, REG_RESULT_CALLER, s1);
2722
2723                                 d = codegen_reg_of_dst(jd, iptr, s1);
2724                         }
2725
2726                         M_INTMOVE(s1, d);
2727                         emit_store_dst(jd, iptr, d);
2728                         break;
2729
2730                 case ICMD_INSTANCEOF: /* ..., objectref ==> ..., intresult            */
2731                                       /* val.a: (classinfo*) superclass               */
2732
2733                         /*  superclass is an interface:
2734                          *
2735                          *  return (sub != NULL) &&
2736                          *         (sub->vftbl->interfacetablelength > super->index) &&
2737                          *         (sub->vftbl->interfacetable[-super->index] != NULL);
2738                          *
2739                          *  superclass is a class:
2740                          *
2741                          *  return ((sub != NULL) && (0
2742                          *          <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2743                          *          super->vftbl->diffvall));
2744                          */
2745
2746                         {
2747                         classinfo *super;
2748                         vftbl_t   *supervftbl;
2749                         s4         superindex;
2750
2751                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2752                                 super = NULL;
2753                                 superindex = 0;
2754                                 supervftbl = NULL;
2755
2756                         } else {
2757                                 super = iptr->sx.s23.s3.c.cls;
2758                                 superindex = super->index;
2759                                 supervftbl = super->vftbl;
2760                         }
2761
2762 #if defined(ENABLE_THREADS)
2763                         codegen_threadcritrestart(cd, cd->mcodeptr - cd->mcodebase);
2764 #endif
2765                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2766                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
2767                         if (s1 == d) {
2768                                 M_MOV(s1, REG_ITMP1);
2769                                 s1 = REG_ITMP1;
2770                         }
2771
2772                         M_CLR(d);
2773
2774                         /* if class is not resolved, check which code to call */
2775
2776                         if (super == NULL) {
2777                                 emit_label_beqz(cd, BRANCH_LABEL_1, s1);
2778
2779                                 cr   = iptr->sx.s23.s3.c.ref;
2780                                 disp = dseg_add_unique_s4(cd, 0);             /* super->flags */
2781
2782                                 codegen_add_patch_ref(cd, PATCHER_checkcast_instanceof_flags,
2783                                                                           cr, disp);
2784
2785                                 M_ILD(REG_ITMP3, REG_PV, disp);
2786                                 M_AND_IMM(REG_ITMP3, ACC_INTERFACE, REG_ITMP3);
2787                                 emit_label_beqz(cd, BRANCH_LABEL_2, REG_ITMP3);
2788                         }
2789
2790                         /* interface instanceof code */
2791
2792                         if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2793                                 if (super == NULL) {
2794                                         cr = iptr->sx.s23.s3.c.ref;
2795
2796                                         codegen_add_patch_ref(cd, PATCHER_instanceof_interface,
2797                                                                                   cr, 0);
2798                                 }
2799                                 else {
2800                                         emit_label_beqz(cd, BRANCH_LABEL_3, s1);
2801                                 }
2802
2803                                 M_ALD(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
2804                                 M_ILD(REG_ITMP3, REG_ITMP1, OFFSET(vftbl_t, interfacetablelength));
2805                                 M_CMP_IMM(REG_ITMP3, superindex);
2806                                 M_BLE(4);
2807                                 M_NOP;
2808                                 M_ALD(REG_ITMP1, REG_ITMP1,
2809                                           (s4) (OFFSET(vftbl_t, interfacetable[0]) -
2810                                                         superindex * sizeof(methodptr*)));
2811                                 M_CMOVRNE_IMM(REG_ITMP1, 1, d);      /* REG_ITMP1 != 0  */
2812
2813                                 if (super == NULL)
2814                                         emit_label_br(cd, BRANCH_LABEL_4);
2815                                 else
2816                                         emit_label(cd, BRANCH_LABEL_3);
2817                         }
2818
2819                         /* class instanceof code */
2820
2821                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2822                                 if (super == NULL) {
2823                                         emit_label(cd, BRANCH_LABEL_2);
2824
2825                                         cr   = iptr->sx.s23.s3.c.ref;
2826                                         disp = dseg_add_unique_address(cd, NULL);
2827
2828                                         codegen_add_patch_ref(cd, PATCHER_checkcast_instanceof_class,
2829                                                                                   cr, disp);
2830                                 }
2831                                 else {
2832                                         disp = dseg_add_address(cd, supervftbl);
2833
2834                                         emit_label_beqz(cd, BRANCH_LABEL_5, s1);
2835                                 }
2836
2837                                 M_ALD(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
2838                                 M_ALD(REG_ITMP2, REG_PV, disp);
2839 #if defined(ENABLE_THREADS)
2840                                 codegen_threadcritstart(cd, cd->mcodeptr - cd->mcodebase);
2841 #endif
2842                                 M_ILD(REG_ITMP1, REG_ITMP1, OFFSET(vftbl_t, baseval));
2843                                 M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2844                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2845 #if defined(ENABLE_THREADS)
2846                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2847 #endif
2848                                 M_SUB(REG_ITMP1, REG_ITMP3, REG_ITMP1);
2849                                 M_CMP(REG_ITMP1, REG_ITMP2);
2850                                 M_XCMOVULE_IMM(1, d);
2851
2852                                 if (super != NULL)
2853                                         emit_label(cd, BRANCH_LABEL_5);
2854                         }
2855
2856                         if (super == NULL) {
2857                                 emit_label(cd, BRANCH_LABEL_1);
2858                                 emit_label(cd, BRANCH_LABEL_4);
2859                         }
2860
2861                         emit_store_dst(jd, iptr, d);
2862                         }
2863                         break;
2864
2865                 case ICMD_MULTIANEWARRAY:/* ..., cnt1, [cnt2, ...] ==> ..., arrayref  */
2866
2867                         /* check for negative sizes and copy sizes to stack if necessary  */
2868
2869                         MCODECHECK((iptr->s1.argcount << 1) + 64);
2870
2871                         for (s1 = iptr->s1.argcount; --s1 >= 0; ) {
2872
2873                                 var = VAR(iptr->sx.s23.s2.args[s1]);
2874
2875                                 /* copy SAVEDVAR sizes to stack */
2876
2877                                 /* Already Preallocated? */
2878
2879                                 if (!(var->flags & PREALLOC)) {
2880                                         s2 = emit_load(jd, iptr, var, REG_ITMP1);
2881                                         M_STX(s2, REG_SP, CSTACK + (s1 * 8));
2882                                 }
2883                         }
2884
2885                         /* arg 0 = dimension count */
2886
2887                         ICONST(REG_OUT0, iptr->s1.argcount);
2888
2889                         /* is patcher function set? */
2890
2891                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2892                                 disp = dseg_add_unique_address(cd, 0);
2893
2894                                 codegen_add_patch_ref(cd, PATCHER_builtin_multianewarray,
2895                                                                           iptr->sx.s23.s3.c.ref,
2896                                                                           disp);
2897                         }
2898                         else
2899                                 disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2900
2901                         /* arg 1 = arraydescriptor */
2902
2903                         M_ALD(REG_OUT1, REG_PV, disp);
2904
2905                         /* arg 2 = pointer to dimensions = stack pointer (absolute) */
2906
2907                         M_ADD_IMM(REG_SP, CSTACK, REG_OUT2);
2908
2909                         /* XXX c abi call */
2910                         disp = dseg_add_functionptr(cd, BUILTIN_multianewarray);
2911                         M_ALD(REG_ITMP3, REG_PV, disp);
2912                         M_JMP(REG_RA_CALLER, REG_ITMP3, REG_ZERO);
2913                         M_NOP;
2914
2915                         /* check for exception before result assignment */
2916
2917                         emit_exception_check(cd, iptr);
2918
2919                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT_CALLER);
2920                         M_INTMOVE(REG_RESULT_CALLER, d);
2921                         emit_store_dst(jd, iptr, d);
2922                         break;
2923
2924                 default:
2925                         exceptions_throw_internalerror("Unknown ICMD %d during code generation",
2926                                                                                    iptr->opc);
2927                         return false;
2928
2929         } /* switch */
2930
2931         } /* for instruction */
2932
2933
2934
2935         } /* if (bptr -> flags >= BBREACHED) */
2936         } /* for basic block */
2937
2938         dseg_createlinenumbertable(cd);
2939
2940         /* generate stubs */
2941
2942         emit_patcher_stubs(jd);
2943         REPLACEMENT_EMIT_STUBS(jd);
2944
2945         /* everything's ok */
2946
2947         return true;
2948 }
2949
2950
2951 /* codegen_emit_stub_compiler **************************************************
2952
2953    Emits a stub routine which calls the compiler.
2954
2955 *******************************************************************************/
2956
2957 void codegen_emit_stub_compiler(jitdata *jd)
2958 {
2959         methodinfo  *m;
2960         codegendata *cd;
2961
2962         /* get required compiler data */
2963
2964         m  = jd->m;
2965         cd = jd->cd;
2966
2967         /* code for the stub */
2968
2969         /* no window save yet, user caller's PV */
2970         M_ALD_INTERN(REG_ITMP1, REG_PV_CALLER, -2 * SIZEOF_VOID_P);  /* codeinfo pointer */
2971         M_ALD_INTERN(REG_PV_CALLER, REG_PV_CALLER, -3 * SIZEOF_VOID_P);  /* pointer to compiler */
2972         M_JMP(REG_ZERO, REG_PV_CALLER, REG_ZERO);  /* jump to the compiler, RA is wasted */
2973         M_NOP;
2974 }
2975
2976
2977 /* codegen_emit_stub_native ****************************************************
2978
2979    Emits a stub routine which calls a native method.
2980
2981 *******************************************************************************/
2982
2983 void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f)
2984 {
2985         methodinfo   *m;
2986         codeinfo     *code;
2987         codegendata  *cd;
2988         methoddesc   *md;
2989         s4            nativeparams;
2990         s4            i, j;                 /* count variables                    */
2991         s4            t;
2992         s4            s1, s2, disp;
2993         s4            funcdisp;             /* displacement of the function       */
2994
2995         /* get required compiler data */
2996
2997         m    = jd->m;
2998         code = jd->code;
2999         cd   = jd->cd;
3000
3001         /* initialize variables */
3002
3003         md = m->parseddesc;
3004         nativeparams = (m->flags & ACC_STATIC) ? 2 : 1;
3005
3006         /* calculate stack frame size */
3007
3008         cd->stackframesize =
3009                 sizeof(stackframeinfo) / SIZEOF_VOID_P +
3010                 sizeof(localref_table) / SIZEOF_VOID_P +
3011                 md->paramcount +                /* for saving arguments over calls    */
3012                 nmd->memuse +  /* nmd knows about the native stackframe layout */
3013                 WINSAVE_CNT;
3014
3015         /* create method header */
3016
3017         (void) dseg_add_unique_address(cd, code);              /* CodeinfoPointer */
3018         (void) dseg_add_unique_s4(cd, cd->stackframesize * 8); /* FrameSize       */
3019         (void) dseg_add_unique_s4(cd, 0);                      /* IsSync          */
3020         (void) dseg_add_unique_s4(cd, 0);                      /* IsLeaf          */
3021         (void) dseg_add_unique_s4(cd, 0);                      /* IntSave         */
3022         (void) dseg_add_unique_s4(cd, 0);                      /* FltSave         */
3023         (void) dseg_addlinenumbertablesize(cd);
3024         (void) dseg_add_unique_s4(cd, 0);                      /* ExTableSize     */
3025
3026         /* generate stub code */
3027
3028         M_SAVE(REG_SP, -cd->stackframesize * 8, REG_SP); /* build up stackframe    */
3029
3030 #if !defined(NDEBUG)
3031         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
3032                 emit_verbosecall_enter(jd);
3033 #endif
3034
3035         /* get function address (this must happen before the stackframeinfo) */
3036
3037         funcdisp = dseg_add_functionptr(cd, f);
3038
3039 #if !defined(WITH_STATIC_CLASSPATH)
3040         if (f == NULL) {
3041                 codegen_add_patch_ref(cd, PATCHER_resolve_native, m, funcdisp);
3042         }
3043 #endif
3044
3045         /* save float argument registers */
3046
3047         for (i = 0, j = 0; i < md->paramcount && i < FLT_ARG_CNT; i++) {
3048                 if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
3049                         M_DST(abi_registers_float_argument[i], REG_SP, CSTACK + (j * 8));
3050                         j++;
3051                 }
3052         }
3053
3054         /* prepare data structures for native function call */
3055
3056         M_ADD_IMM(REG_FP, BIAS, REG_OUT0); /* datasp == top of the stack frame (absolute == +BIAS) */
3057         M_MOV(REG_PV_CALLEE, REG_OUT1);
3058         M_MOV(REG_FP, REG_OUT2); /* java sp */
3059         M_MOV(REG_RA_CALLEE, REG_OUT3);
3060         disp = dseg_add_functionptr(cd, codegen_start_native_call);
3061         M_ALD(REG_ITMP3, REG_PV_CALLEE, disp);
3062         M_JMP(REG_RA_CALLER, REG_ITMP3, REG_ZERO);
3063         M_NOP; /* XXX fill me! */
3064
3065         /* restore float argument registers */
3066
3067         for (i = 0, j = 0; i < md->paramcount && i < FLT_ARG_CNT; i++) {
3068                 if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
3069                         M_DLD(abi_registers_float_argument[i], REG_SP, CSTACK + (j * 8));
3070                         j++;
3071                 }
3072         }
3073
3074         /* copy or spill arguments to new locations */
3075         int num_fltregargs = 0;
3076         int fltregarg_inswap[16];
3077         for (i = md->paramcount - 1, j = i + nativeparams; i >= 0; i--, j--) {
3078                 t = md->paramtypes[i].type;
3079
3080                 if (IS_INT_LNG_TYPE(t)) {
3081                         if (!md->params[i].inmemory) {
3082                                 s1 = md->params[i].regoff;
3083                                 /* s1 refers to the old window, transpose */
3084                                 s1 = REG_WINDOW_TRANSPOSE(s1);
3085
3086                                 if (!nmd->params[j].inmemory) {
3087                                         s2 = nat_argintregs[nmd->params[j].regoff];
3088                                         M_INTMOVE(s1, s2);
3089                                 } else {
3090                                         s2 = nmd->params[j].regoff - 6;
3091                                         M_AST(s1, REG_SP, CSTACK + s2 * 8);
3092                                 }
3093
3094                         } else {
3095                                 /*assert(false);*/
3096                                 s1 = md->params[i].regoff + cd->stackframesize;
3097                                 s2 = nmd->params[j].regoff - 6;
3098                                 M_ALD(REG_ITMP1, REG_SP, CSTACK + s1 * 8);
3099                                 M_AST(REG_ITMP1, REG_SP, CSTACK + s2 * 8);
3100                         }
3101
3102                 } else {
3103                         if (!md->params[i].inmemory) {
3104                                 s1 = md->params[i].regoff;
3105
3106                                 if (!nmd->params[j].inmemory) {
3107                                         /* no mapping to regs needed, native flt args use regoff */
3108                                         s2 = nmd->params[j].regoff;
3109
3110                                         /* we cannot move flt regs to their native arg locations directly */
3111                                         M_DMOV(s1, s2 + 16);
3112                                         fltregarg_inswap[num_fltregargs] = s2;
3113                                         num_fltregargs++;
3114                                         /*printf("flt arg swap to %d\n", s2 + 16);*/
3115
3116                                 } else {
3117                                         s2 = nmd->params[j].regoff;
3118                                         if (IS_2_WORD_TYPE(t))
3119                                                 M_DST(s1, REG_SP, CSTACK + (s2 * 8));
3120                                         else
3121                                                 M_FST(s1, REG_SP, CSTACK + (s2 * 8));
3122                                 }
3123
3124                         } else {
3125                                 /*assert(false);*/
3126                                 s1 = md->params[i].regoff + cd->stackframesize;
3127                                 s2 = nmd->params[j].regoff - 6;
3128                                 if (IS_2_WORD_TYPE(t)) {
3129                                         M_DLD(REG_FTMP1, REG_SP, CSTACK + s1 * 8);
3130                                         M_DST(REG_FTMP1, REG_SP, CSTACK + s2 * 8);
3131                                 } else {
3132                                         M_FLD(REG_FTMP1, REG_SP, CSTACK + s1 * 8);
3133                                         M_FST(REG_FTMP1, REG_SP, CSTACK + s2 * 8);
3134                                 }
3135                         }
3136                 }
3137         }
3138
3139         /* move swapped float args to target regs */
3140         for (i = 0; i < num_fltregargs; i++) {
3141                 s1 = fltregarg_inswap[i];
3142                 M_DMOV(s1 + 16, s1);
3143                 /*printf("float arg to target reg: %d ==> %d\n", s1+16, s1);*/
3144         }
3145
3146
3147         /* put class into second argument register */
3148
3149         if (m->flags & ACC_STATIC) {
3150                 disp = dseg_add_address(cd, m->class);
3151                 M_ALD(REG_OUT1, REG_PV_CALLEE, disp);
3152         }
3153
3154         /* put env into first argument register */
3155
3156         disp = dseg_add_address(cd, _Jv_env);
3157         M_ALD(REG_OUT0, REG_PV_CALLEE, disp);
3158
3159         /* do the native function call */
3160
3161         M_ALD(REG_ITMP3, REG_PV_CALLEE, funcdisp); /* load adress of native method       */
3162         M_JMP(REG_RA_CALLER, REG_ITMP3, REG_ZERO); /* call native method                 */
3163         M_NOP;                              /* delay slot                         */
3164
3165         /* save return value */
3166
3167         if (md->returntype.type != TYPE_VOID) {
3168                 if (IS_INT_LNG_TYPE(md->returntype.type))
3169                         M_MOV(REG_RESULT_CALLER, REG_RESULT_CALLEE);
3170                 else
3171                         M_DST(REG_FRESULT, REG_SP, CSTACK);
3172         }
3173
3174         /* Note: native functions return float values in %f0 (see ABI) */
3175         /* we handle this by doing M_FLD below. (which will load the lower word into %f1) */
3176
3177 #if !defined(NDEBUG)
3178         /* But for the trace function we need to put a flt result into %f1 */
3179         if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
3180                 if (!IS_2_WORD_TYPE(md->returntype.type))
3181                         M_FLD(REG_FRESULT, REG_SP, CSTACK);
3182                 emit_verbosecall_exit(jd);
3183         }
3184 #endif
3185
3186         /* remove native stackframe info */
3187
3188         M_ADD_IMM(REG_FP, BIAS, REG_OUT0); /* datasp, like above */
3189         disp = dseg_add_functionptr(cd, codegen_finish_native_call);
3190         M_ALD(REG_ITMP3, REG_PV_CALLEE, disp);
3191         M_JMP(REG_RA_CALLER, REG_ITMP3, REG_ZERO);
3192         M_NOP; /* XXX fill me! */
3193         M_MOV(REG_RESULT_CALLER, REG_ITMP2_XPTR);
3194
3195         /* restore float return value, int return value already in our return reg */
3196
3197         if (md->returntype.type != TYPE_VOID) {
3198                 if (IS_FLT_DBL_TYPE(md->returntype.type)) {
3199                         if (IS_2_WORD_TYPE(md->returntype.type))
3200                                 M_DLD(REG_FRESULT, REG_SP, CSTACK);
3201                         else
3202                                 M_FLD(REG_FRESULT, REG_SP, CSTACK);
3203                 }
3204         }
3205
3206         /* check for exception */
3207         M_BNEZ(REG_ITMP2_XPTR, 4);          /* if no exception then return        */
3208         M_NOP;
3209
3210         M_RETURN(REG_RA_CALLEE, 8); /* implicit window restore */
3211         M_NOP;
3212
3213         /* handle exception */
3214
3215         disp = dseg_add_functionptr(cd, asm_handle_nat_exception);
3216         M_ALD(REG_ITMP1, REG_PV, disp);     /* load asm exception handler address */
3217         M_MOV(REG_RA_CALLEE, REG_ITMP3_XPC); /* get exception address             */
3218         M_JMP(REG_ZERO, REG_ITMP1, REG_ZERO);/* jump to asm exception handler     */
3219         M_RESTORE(REG_ZERO, 0, REG_ZERO);   /* restore callers window (DELAY)     */
3220
3221         /* generate patcher stubs */
3222
3223         emit_patcher_stubs(jd);
3224 }
3225
3226 /*
3227  * These are local overrides for various environment variables in Emacs.
3228  * Please do not remove this and leave it at the end of the file, where
3229  * Emacs will automagically detect them.
3230  * ---------------------------------------------------------------------
3231  * Local variables:
3232  * mode: c
3233  * indent-tabs-mode: t
3234  * c-basic-offset: 4
3235  * tab-width: 4
3236  * End:
3237  * vim:noexpandtab:sw=4:ts=4:
3238  */