src/vm/jit/powerpc64/codegen.c

   1 /* src/vm/jit/powerpc64/codegen.c - machine code generator for 32-bit PowerPC
   2
   3    Copyright (C) 1996-2005, 2006 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    Contact: cacao@cacaojvm.org
  26
  27    Authors: Andreas Krall
  28             Stefan Ring
  29
  30    Changes: Christian Thalinger
  31             Christian Ullrich
  32             Edwin Steiner
  33
  34    $Id: codegen.c 5576 2006-09-28 22:33:48Z edwin $
  35
  36 */
  37
  38
  39 #include "config.h"
  40
  41 #include <assert.h>
  42 #include <stdio.h>
  43 #include <signal.h>
  44
  45 #include "vm/types.h"
  46
  47 #include "md-abi.h"
  48 #include "vm/jit/abi-asm.h"
  49
  50 #include "vm/jit/powerpc64/arch.h"
  51 #include "vm/jit/powerpc64/codegen.h"
  52
  53 #include "mm/memory.h"
  54 #include "native/native.h"
  55 #include "vm/builtin.h"
  56 #include "vm/exceptions.h"
  57 #include "vm/global.h"
  58 #include "vm/loader.h"
  59 #include "vm/options.h"
  60 #include "vm/stringlocal.h"
  61 #include "vm/vm.h"
  62 #include "vm/jit/asmpart.h"
  63 #include "vm/jit/codegen-common.h"
  64 #include "vm/jit/dseg.h"
  65 #include "vm/jit/emit-common.h"
  66 #include "vm/jit/jit.h"
  67 #include "vm/jit/parse.h"
  68 #include "vm/jit/patcher.h"
  69 #include "vm/jit/reg.h"
  70 #include "vm/jit/replace.h"
  71
  72 #if defined(ENABLE_LSRA)
  73 # include "vm/jit/allocator/lsra.h"
  74 #endif
  75
  76
  77 /* codegen *********************************************************************
  78
  79    Generates machine code.
  80
  81 *******************************************************************************/
  82
  83 bool codegen(jitdata *jd)
  84 {
  85         methodinfo         *m;
  86         codeinfo           *code;
  87         codegendata        *cd;
  88         registerdata       *rd;
  89         s4                  len, s1, s2, s3, d, disp;
  90         ptrint              a;
  91         s4                  stackframesize;
  92         stackptr            src;
  93         varinfo            *var;
  94         basicblock         *bptr;
  95         instruction        *iptr;
  96         exceptiontable     *ex;
  97         u2                  currentline;
  98         methodinfo         *lm;             /* local methodinfo for ICMD_INVOKE*  */
  99         builtintable_entry *bte;
 100         methoddesc         *md;
 101         rplpoint           *replacementpoint;
 102         s4                  fieldtype;
 103
 104         /* get required compiler data */
 105
 106         m    = jd->m;
 107         code = jd->code;
 108         cd   = jd->cd;
 109         rd   = jd->rd;
 110
 111         /* prevent compiler warnings */
 112
 113         d = 0;
 114         lm = NULL;
 115         bte = NULL;
 116
 117         {
 118         s4 i, p, t, l;
 119         s4 savedregs_num;
 120
 121         savedregs_num = 0;
 122
 123         /* space to save used callee saved registers */
 124
 125         savedregs_num += (INT_SAV_CNT - rd->savintreguse);
 126         savedregs_num += (FLT_SAV_CNT - rd->savfltreguse);
 127
 128         stackframesize = rd->memuse + savedregs_num;
 129
 130 #if defined(ENABLE_THREADS)
 131         /* space to save argument of monitor_enter and Return Values to survive */
 132     /* monitor_exit. The stack position for the argument can not be shared  */
 133         /* with place to save the return register on PPC64, since both values     */
 134         /* reside in R3 */
 135         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
 136                 /* reserve 2 slots for long/double return values for monitorexit */
 137                 stackframesize += 2;
 138         }
 139
 140 #endif
 141
 142         /* create method header */
 143
 144         /* align stack to 16-bytes */
 145
 146 /*      if (!m->isleafmethod || opt_verbosecall) */
 147                 stackframesize = (stackframesize + 3) & ~3;
 148
 149 /*      else if (m->isleafmethod && (stackframesize == LA_WORD_SIZE)) */
 150 /*              stackframesize = 0; */
 151
 152         (void) dseg_addaddress(cd, code);                      /* CodeinfoPointer */
 153         (void) dseg_adds4(cd, stackframesize * 8);             /* FrameSize       */
 154
 155 #if defined(ENABLE_THREADS)
 156         /* IsSync contains the offset relative to the stack pointer for the
 157            argument of monitor_exit used in the exception handler. Since the
 158            offset could be zero and give a wrong meaning of the flag it is
 159            offset by one.
 160         */
 161
 162         if (checksync && (m->flags & ACC_SYNCHRONIZED))
 163                 (void) dseg_adds4(cd, (rd->memuse + 1) * 8);       /* IsSync          */
 164         else
 165 #endif
 166                 (void) dseg_adds4(cd, 0);                          /* IsSync          */
 167
 168         (void) dseg_adds4(cd, jd->isleafmethod);                /* IsLeaf          */
 169         (void) dseg_adds4(cd, INT_SAV_CNT - rd->savintreguse); /* IntSave         */
 170         (void) dseg_adds4(cd, FLT_SAV_CNT - rd->savfltreguse); /* FltSave         */
 171
 172         dseg_addlinenumbertablesize(cd);
 173
 174         (void) dseg_adds4(cd, cd->exceptiontablelength);       /* ExTableSize     */
 175
 176         /* create exception table */
 177
 178         for (ex = cd->exceptiontable; ex != NULL; ex = ex->down) {
 179                 dseg_addtarget(cd, ex->start);
 180                 dseg_addtarget(cd, ex->end);
 181                 dseg_addtarget(cd, ex->handler);
 182                 (void) dseg_addaddress(cd, ex->catchtype.any);
 183         }
 184
 185         /* create stack frame (if necessary) */
 186
 187         if (!jd->isleafmethod) {
 188                 M_MFLR(REG_ZERO);
 189                 M_AST(REG_ZERO, REG_SP, LA_LR_OFFSET);
 190         }
 191
 192         if (stackframesize)
 193                 M_STDU(REG_SP, REG_SP, -stackframesize * 8);
 194
 195         /* save return address and used callee saved registers */
 196
 197         p = stackframesize;
 198         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
 199                 p--; M_LST(rd->savintregs[i], REG_SP, p * 8);
 200         }
 201         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
 202                 p --; M_DST(rd->savfltregs[i], REG_SP, p * 8);
 203         }
 204
 205         /* take arguments out of register or stack frame */
 206
 207         md = m->parseddesc;
 208
 209         for (p = 0, l = 0; p < md->paramcount; p++) {
 210                 t = md->paramtypes[p].type;
 211                 var = &(rd->locals[l][t]);
 212                 l++;
 213                 if (IS_2_WORD_TYPE(t))    /* increment local counter for 2 word types */
 214                         l++;
 215                 if (var->type < 0)
 216                         continue;
 217                 s1 = md->params[p].regoff;
 218                 if (IS_INT_LNG_TYPE(t)) {                    /* integer args          */
 219                         if (IS_2_WORD_TYPE(t))
 220                                 s2 = PACK_REGS(rd->argintregs[GET_LOW_REG(s1)],
 221                                                            rd->argintregs[GET_HIGH_REG(s1)]);
 222                         else
 223                                 s2 = rd->argintregs[s1];
 224                         if (!md->params[p].inmemory) {           /* register arguments    */
 225                                 if (!(var->flags & INMEMORY)) {      /* reg arg -> register   */
 226                                         M_NOP;
 227                                         if (IS_2_WORD_TYPE(t))          /* FIXME, only M_INTMOVE here */
 228                                                 M_LNGMOVE(s2, var->regoff);
 229                                         else
 230                                                 M_INTMOVE(s2, var->regoff);
 231
 232                                 } else {                             /* reg arg -> spilled    */
 233                                         if (IS_2_WORD_TYPE(t))
 234                                                 M_LST(s2, REG_SP, var->regoff * 4);
 235                                         else
 236                                                 M_IST(s2, REG_SP, var->regoff * 4);
 237                                 }
 238
 239                         } else {                                 /* stack arguments       */
 240                                 if (!(var->flags & INMEMORY)) {      /* stack arg -> register */
 241                                         if (IS_2_WORD_TYPE(t))
 242                                                 M_LLD(var->regoff, REG_SP, (stackframesize + s1) * 4);
 243                                         else
 244                                                 M_ILD(var->regoff, REG_SP, (stackframesize + s1) * 4);
 245
 246                                 } else {                             /* stack arg -> spilled  */
 247 #if 1
 248                                         M_ILD(REG_ITMP1, REG_SP, (stackframesize + s1) * 4);
 249                                         M_IST(REG_ITMP1, REG_SP, var->regoff * 4);
 250                                         if (IS_2_WORD_TYPE(t)) {
 251                                                 M_ILD(REG_ITMP1, REG_SP, (stackframesize + s1) * 4 +4);
 252                                                 M_IST(REG_ITMP1, REG_SP, var->regoff * 4 + 4);
 253                                         }
 254 #else
 255                                         /* Reuse Memory Position on Caller Stack */
 256                                         var->regoff = stackframesize + s1;
 257 #endif
 258                                 }
 259                         }
 260
 261                 } else {                                     /* floating args         */
 262                         if (!md->params[p].inmemory) {           /* register arguments    */
 263                                 s2 = rd->argfltregs[s1];
 264                                 if (!(var->flags & INMEMORY)) {      /* reg arg -> register   */
 265                                         M_FLTMOVE(s2, var->regoff);
 266
 267                                 } else {                                         /* reg arg -> spilled    */
 268                                         if (IS_2_WORD_TYPE(t))
 269                                                 M_DST(s2, REG_SP, var->regoff * 4);
 270                                         else
 271                                                 M_FST(s2, REG_SP, var->regoff * 4);
 272                                 }
 273
 274                         } else {                                 /* stack arguments       */
 275                                 if (!(var->flags & INMEMORY)) {      /* stack-arg -> register */
 276                                         if (IS_2_WORD_TYPE(t))
 277                                                 M_DLD(var->regoff, REG_SP, (stackframesize + s1) * 4);
 278
 279                                         else
 280                                                 M_FLD(var->regoff, REG_SP, (stackframesize + s1) * 4);
 281
 282                                 } else {                             /* stack-arg -> spilled  */
 283 #if 1
 284                                         if (IS_2_WORD_TYPE(t)) {
 285                                                 M_DLD(REG_FTMP1, REG_SP, (stackframesize + s1) * 4);
 286                                                 M_DST(REG_FTMP1, REG_SP, var->regoff * 4);
 287                                                 var->regoff = stackframesize + s1;
 288
 289                                         } else {
 290                                                 M_FLD(REG_FTMP1, REG_SP, (stackframesize + s1) * 4);
 291                                                 M_FST(REG_FTMP1, REG_SP, var->regoff * 4);
 292                                         }
 293 #else
 294                                         /* Reuse Memory Position on Caller Stack */
 295                                         var->regoff = stackframesize + s1;
 296 #endif
 297                                 }
 298                         }
 299                 }
 300         } /* end for */
 301
 302         /* save monitorenter argument */
 303
 304 #if defined(ENABLE_THREADS)
 305
 306         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
 307
 308                 /* stackoffset for argument used for LOCK_monitor_exit */
 309                 s1 = rd->memuse;
 310 #if !defined (NDEBUG)
 311                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 312                         M_AADD_IMM(REG_SP, -((LA_SIZE_IN_POINTERS + PA_SIZE_IN_POINTERS + ARG_CNT) * 8), REG_SP);
 313
 314                         for (p = 0; p < INT_ARG_CNT; p++)
 315                                 M_LST(rd->argintregs[p], REG_SP, LA_SIZE + PA_SIZE + p * 8);
 316
 317                         for (p = 0; p < FLT_ARG_CNT; p++)
 318                                 M_DST(rd->argfltregs[p], REG_SP, LA_SIZE + PA_SIZE + (INT_ARG_CNT + p) * 8);
 319
 320                         /* used for LOCK_monitor_exit, adopt size because we created another stackframe */
 321                         s1 += (LA_SIZE_IN_POINTERS + PA_SIZE_IN_POINTERS + ARG_CNT);
 322                 }
 323 #endif
 324                 p = dseg_addaddress(cd, LOCK_monitor_enter);
 325                 M_ALD(REG_ITMP3, REG_PV, p);
 326                 M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
 327                 M_MTCTR(REG_ITMP3);
 328
 329                 /* get or test the lock object */
 330
 331                 if (m->flags & ACC_STATIC) {
 332                         p = dseg_addaddress(cd, &m->class->object.header);
 333                         M_ALD(rd->argintregs[0], REG_PV, p);
 334                 }
 335                 else {
 336                         M_TST(rd->argintregs[0]);
 337                         M_BEQ(0);
 338                         codegen_add_nullpointerexception_ref(cd);
 339                 }
 340
 341                 M_AST(rd->argintregs[0], REG_SP, s1 * 8);       /* rd->memuse * 8 */
 342                 M_JSR;
 343 #if !defined (NDEBUG)
 344                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 345                         for (p = 0; p < INT_ARG_CNT; p++)
 346                                 M_LLD(rd->argintregs[p], REG_SP, LA_SIZE + PA_SIZE + p * 8);
 347
 348                         for (p = 0; p < FLT_ARG_CNT; p++)
 349                                 M_DLD(rd->argfltregs[p], REG_SP, LA_SIZE + PA_SIZE + (INT_ARG_CNT + p) * 8);
 350
 351                         M_AADD_IMM(REG_SP, (LA_SIZE_IN_POINTERS + PA_SIZE_IN_POINTERS + ARG_CNT) * 8, REG_SP);
 352                 }
 353 #endif
 354         }
 355 #endif
 356
 357         /* call trace function */
 358 #if !defined (NDEBUG)
 359         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
 360                 emit_verbosecall_enter(jd);
 361
 362         }
 363 #endif
 364
 365         /* end of header generation */
 366
 367         replacementpoint = jd->code->rplpoints;
 368
 369         /* walk through all basic blocks */
 370         for (bptr = jd->new_basicblocks; bptr != NULL; bptr = bptr->next) {
 371
 372                 bptr->mpc = (s4) (cd->mcodeptr - cd->mcodebase);
 373
 374                 if (bptr->flags >= BBREACHED) {
 375
 376                 /* branch resolving */
 377
 378                 {
 379                 branchref *brefs;
 380                 for (brefs = bptr->branchrefs; brefs != NULL; brefs = brefs->next) {
 381                         gen_resolvebranch((u1*) cd->mcodebase + brefs->branchpos,
 382                                           brefs->branchpos,
 383                                                           bptr->mpc);
 384                         }
 385                 }
 386
 387                 /* handle replacement points */
 388
 389 #if 0
 390                 if (bptr->bitflags & BBFLAG_REPLACEMENT) {
 391                         replacementpoint->pc = (u1*)(ptrint)bptr->mpc; /* will be resolved later */
 392
 393                         replacementpoint++;
 394                 }
 395 #endif
 396
 397                 /* copy interface registers to their destination */
 398
 399                 len = bptr->indepth;
 400                 MCODECHECK(64+len);
 401
 402 #if defined(ENABLE_LSRA)
 403                 if (opt_lsra) {
 404                         while (len) {
 405                                 len--;
 406                                 src = bptr->invars[len];
 407                                 if ((len == 0) && (bptr->type != BBTYPE_STD)) {
 408                                         /* d = reg_of_var(m, src, REG_ITMP1); */
 409                                         if (!(src->flags & INMEMORY))
 410                                                 d = src->regoff;
 411                                         else
 412                                                 d = REG_ITMP1;
 413                                         M_INTMOVE(REG_ITMP1, d);
 414                                         emit_store(jd, NULL, src, d);
 415                                 }
 416                         }
 417                 } else {
 418 #endif
 419                 while (len) {
 420                         len--;
 421                         src = bptr->invars[len];
 422                         if ((len == 0) && (bptr->type != BBTYPE_STD)) {
 423                                 d = codegen_reg_of_var(rd, 0, src, REG_ITMP1);
 424                                 M_INTMOVE(REG_ITMP1, d);
 425                                 emit_store(jd, NULL, src, d);
 426                         } else {
 427                                 if (src->type == TYPE_LNG)
 428                                         d = codegen_reg_of_var(rd, 0, src, PACK_REGS(REG_ITMP2, REG_ITMP1));
 429                                 else
 430                                         d = codegen_reg_of_var(rd, 0, src, REG_IFTMP);
 431                                 if ((src->varkind != STACKVAR)) {
 432                                         s2 = src->type;
 433                                         if (IS_FLT_DBL_TYPE(s2)) {
 434                                                 if (!(rd->interfaces[len][s2].flags & INMEMORY)) {
 435                                                         s1 = rd->interfaces[len][s2].regoff;
 436                                                         M_FLTMOVE(s1, d);
 437                                                 } else {
 438                                                         if (IS_2_WORD_TYPE(s2)) {
 439                                                                 M_DLD(d, REG_SP,
 440                                                                           rd->interfaces[len][s2].regoff * 4);
 441                                                         } else {
 442                                                                 M_FLD(d, REG_SP,
 443                                                                           rd->interfaces[len][s2].regoff * 4);
 444                                                         }
 445                                                 }
 446
 447                                                 emit_store(jd, NULL, src, d);
 448
 449                                         } else {
 450                                                 if (!(rd->interfaces[len][s2].flags & INMEMORY)) {
 451                                                         s1 = rd->interfaces[len][s2].regoff;
 452                                                         if (IS_2_WORD_TYPE(s2))
 453                                                                 M_LNGMOVE(s1, d);
 454                                                         else
 455                                                                 M_INTMOVE(s1, d);
 456                                                 } else {
 457                                                         if (IS_2_WORD_TYPE(s2))
 458                                                                 M_LLD(d, REG_SP,
 459                                                                           rd->interfaces[len][s2].regoff * 4);
 460                                                         else
 461                                                                 M_ILD(d, REG_SP,
 462                                                                           rd->interfaces[len][s2].regoff * 4);
 463                                                 }
 464
 465                                                 emit_store(jd, NULL, src, d);
 466                                         }
 467                                 }
 468                         }
 469                 }
 470
 471 #if defined(ENABLE_LSRA)
 472                 }
 473 #endif
 474                 /* walk through all instructions */
 475
 476                 len = bptr->icount;
 477                 currentline = 0;
 478
 479                 for (iptr = bptr->iinstr; len > 0; len--, iptr++) {
 480                         if (iptr->line != currentline) {
 481                                 dseg_addlinenumber(cd, iptr->line);
 482                                 currentline = iptr->line;
 483                         }
 484
 485                         MCODECHECK(64);   /* an instruction usually needs < 64 words      */
 486
 487                         /* M_NOP; M_NOP; XXX */
 488                         switch (iptr->opc) {
 489                         case ICMD_NOP:    /* ...  ==> ...                                 */
 490                         case ICMD_INLINE_START:
 491                         case ICMD_INLINE_END:
 492                                 break;
 493
 494                 case ICMD_CHECKNULL:  /* ..., objectref  ==> ..., objectref           */
 495
 496                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 497                         M_TST(s1);
 498                         M_BEQ(0);
 499                         codegen_add_nullpointerexception_ref(cd);
 500                         break;
 501
 502                 /* constant operations ************************************************/
 503
 504                 case ICMD_ICONST:     /* ...  ==> ..., constant                       */
 505
 506                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 507                         ICONST(d, iptr->sx.val.i);
 508                         emit_store_dst(jd, iptr, d);
 509                         break;
 510
 511                 case ICMD_LCONST:     /* ...  ==> ..., constant                       */
 512
 513                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 514                         LCONST(d, iptr->sx.val.l);
 515                         emit_store_dst(jd, iptr, d);
 516                         break;
 517
 518                 case ICMD_FCONST:     /* ...  ==> ..., constant                       */
 519
 520                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 521                         a = dseg_addfloat(cd, iptr->sx.val.f);
 522                         M_FLD(d, REG_PV, a);
 523                         emit_store_dst(jd, iptr, d);
 524                         break;
 525
 526                 case ICMD_DCONST:     /* ...  ==> ..., constant                       */
 527
 528                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 529                         a = dseg_adddouble(cd, iptr->sx.val.d);
 530                         M_DLD(d, REG_PV, a);
 531                         emit_store_dst(jd, iptr, d);
 532                         break;
 533
 534                 case ICMD_ACONST:     /* ...  ==> ..., constant                       */
 535                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 536                         disp = dseg_addaddress(cd, iptr->sx.val.anyptr);
 537
 538                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
 539                                 codegen_addpatchref(cd, PATCHER_aconst,
 540                                                                         iptr->sx.val.c.ref,
 541                                                                     disp);
 542
 543                                 if (opt_showdisassemble)
 544                                         M_NOP;
 545                         }
 546
 547                         M_ALD(d, REG_PV, disp);
 548                         emit_store_dst(jd, iptr, d);
 549                         break;
 550
 551
 552                 /* load/store operations **********************************************/
 553
 554                 case ICMD_ILOAD:      /* ...  ==> ..., content of local variable      */
 555                 case ICMD_ALOAD:      /* s1.localindex = local variable               */
 556                 case ICMD_LLOAD:
 557
 558                         d = codegen_reg_of_var(rd, iptr->opc, iptr->dst.var, REG_ITMP1);
 559                         if ((iptr->dst.var->varkind == LOCALVAR) &&
 560                                 (iptr->dst.var->varnum == iptr->s1.localindex))
 561                                 break;
 562                         var = &(rd->locals[iptr->s1.localindex][iptr->opc - ICMD_ILOAD]);
 563                         if (var->flags & INMEMORY)
 564                                 M_LLD(d, REG_SP, var->regoff * 8);
 565                         else
 566                                 M_LNGMOVE(var->regoff, d);
 567                         emit_store_dst(jd, iptr, d);
 568                         break;
 569
 570                 case ICMD_FLOAD:      /* ...  ==> ..., content of local variable      */
 571                                       /* s1.localindex = local variable               */
 572
 573                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 574                         if ((iptr->dst.var->varkind == LOCALVAR) &&
 575                                 (iptr->dst.var->varnum == iptr->s1.localindex))
 576                                 break;
 577                         var = &(rd->locals[iptr->s1.localindex][iptr->opc - ICMD_ILOAD]);
 578                         if (var->flags & INMEMORY)
 579                                 M_FLD(d, REG_SP, var->regoff * 4);
 580                         else
 581                                 M_FLTMOVE(var->regoff, d);
 582                         emit_store_dst(jd, iptr, d);
 583                         break;
 584
 585                 case ICMD_DLOAD:      /* ...  ==> ..., content of local variable      */
 586                                       /* s1.localindex = local variable               */
 587
 588                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 589                         if ((iptr->dst.var->varkind == LOCALVAR) &&
 590                                 (iptr->dst.var->varnum == iptr->s1.localindex))
 591                                 break;
 592                         var = &(rd->locals[iptr->s1.localindex][iptr->opc - ICMD_ILOAD]);
 593                         if (var->flags & INMEMORY)
 594                                 M_DLD(d, REG_SP, var->regoff * 4);
 595                         else
 596                                 M_FLTMOVE(var->regoff, d);
 597                         emit_store_dst(jd, iptr, d);
 598                         break;
 599
 600
 601                 case ICMD_ISTORE:     /* ..., value  ==> ...                          */
 602                 case ICMD_ASTORE:     /* dst.localindex = local variable              */
 603                 case ICMD_LSTORE:
 604
 605                         if ((iptr->s1.var->varkind == LOCALVAR) &&
 606                                 (iptr->s1.var->varnum == iptr->dst.localindex))
 607                                 break;
 608                         var = &(rd->locals[iptr->dst.localindex][iptr->opc - ICMD_ISTORE]);
 609                         if (var->flags & INMEMORY) {
 610                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 611                                 M_LST(s1, REG_SP, var->regoff * 8);
 612                         }
 613                         else {
 614                                 s1 = emit_load_s1(jd, iptr, var->regoff);
 615                                 M_LNGMOVE(s1, var->regoff);
 616                         }
 617                         break;
 618
 619                 case ICMD_FSTORE:     /* ..., value  ==> ...                          */
 620                                       /* dst.localindex = local variable              */
 621
 622                         if ((iptr->s1.var->varkind == LOCALVAR) &&
 623                                 (iptr->s1.var->varnum == iptr->dst.localindex))
 624                                 break;
 625                         var = &(rd->locals[iptr->dst.localindex][iptr->opc - ICMD_ISTORE]);
 626                         if (var->flags & INMEMORY) {
 627                                 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 628                                 M_FST(s1, REG_SP, var->regoff * 8);
 629                         }
 630                         else {
 631                                 s1 = emit_load_s1(jd, iptr, var->regoff);
 632                                 M_FLTMOVE(s1, var->regoff);
 633                         }
 634                         break;
 635
 636                 case ICMD_DSTORE:     /* ..., value  ==> ...                          */
 637                                       /* dst.localindex = local variable              */
 638
 639                         if ((iptr->s1.var->varkind == LOCALVAR) &&
 640                                 (iptr->s1.var->varnum == iptr->dst.localindex))
 641                                 break;
 642                         var = &(rd->locals[iptr->dst.localindex][iptr->opc - ICMD_ISTORE]);
 643                         if (var->flags & INMEMORY) {
 644                                 s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 645                                 M_DST(s1, REG_SP, var->regoff * 8);
 646                         }
 647                         else {
 648                                 s1 = emit_load_s1(jd, iptr, var->regoff);
 649                                 M_FLTMOVE(s1, var->regoff);
 650                         }
 651                         break;
 652
 653
 654                 /* pop/dup/swap operations ********************************************/
 655
 656                 /* attention: double and longs are only one entry in CACAO ICMDs      */
 657
 658                 case ICMD_POP:        /* ..., value  ==> ...                          */
 659                 case ICMD_POP2:       /* ..., value, value  ==> ...                   */
 660                         break;
 661
 662                 case ICMD_DUP:        /* ..., a ==> ..., a, a                         */
 663
 664                         M_COPY(iptr->s1.var, iptr->dst.var);
 665                         break;
 666
 667                 case ICMD_DUP_X1:     /* ..., a, b ==> ..., b, a, b                   */
 668
 669                         M_COPY(iptr->dst.dupslots[  1], iptr->dst.dupslots[2+2]);
 670                         M_COPY(iptr->dst.dupslots[  0], iptr->dst.dupslots[2+1]);
 671                         M_COPY(iptr->dst.dupslots[2+2], iptr->dst.dupslots[2+0]);
 672                         break;
 673
 674                 case ICMD_DUP_X2:     /* ..., a, b, c ==> ..., c, a, b, c             */
 675
 676                         M_COPY(iptr->dst.dupslots[  2], iptr->dst.dupslots[3+3]);
 677                         M_COPY(iptr->dst.dupslots[  1], iptr->dst.dupslots[3+2]);
 678                         M_COPY(iptr->dst.dupslots[  0], iptr->dst.dupslots[3+1]);
 679                         M_COPY(iptr->dst.dupslots[3+3], iptr->dst.dupslots[3+0]);
 680                         break;
 681
 682                 case ICMD_DUP2:       /* ..., a, b ==> ..., a, b, a, b                */
 683
 684                         M_COPY(iptr->dst.dupslots[  1], iptr->dst.dupslots[2+1]);
 685                         M_COPY(iptr->dst.dupslots[  0], iptr->dst.dupslots[2+0]);
 686                         break;
 687
 688                 case ICMD_DUP2_X1:    /* ..., a, b, c ==> ..., b, c, a, b, c          */
 689
 690                         M_COPY(iptr->dst.dupslots[  2], iptr->dst.dupslots[3+4]);
 691                         M_COPY(iptr->dst.dupslots[  1], iptr->dst.dupslots[3+3]);
 692                         M_COPY(iptr->dst.dupslots[  0], iptr->dst.dupslots[3+2]);
 693                         M_COPY(iptr->dst.dupslots[3+4], iptr->dst.dupslots[3+1]);
 694                         M_COPY(iptr->dst.dupslots[3+3], iptr->dst.dupslots[3+0]);
 695                         break;
 696
 697                 case ICMD_DUP2_X2:    /* ..., a, b, c, d ==> ..., c, d, a, b, c, d    */
 698
 699                         M_COPY(iptr->dst.dupslots[  3], iptr->dst.dupslots[4+5]);
 700                         M_COPY(iptr->dst.dupslots[  2], iptr->dst.dupslots[4+4]);
 701                         M_COPY(iptr->dst.dupslots[  1], iptr->dst.dupslots[4+3]);
 702                         M_COPY(iptr->dst.dupslots[  0], iptr->dst.dupslots[4+2]);
 703                         M_COPY(iptr->dst.dupslots[4+5], iptr->dst.dupslots[4+1]);
 704                         M_COPY(iptr->dst.dupslots[4+4], iptr->dst.dupslots[4+0]);
 705                         break;
 706
 707                 case ICMD_SWAP:       /* ..., a, b ==> ..., b, a                      */
 708
 709                         M_COPY(iptr->dst.dupslots[  1], iptr->dst.dupslots[2+0]);
 710                         M_COPY(iptr->dst.dupslots[  0], iptr->dst.dupslots[2+1]);
 711                         break;
 712
 713
 714                 /* integer operations *************************************************/
 715
 716                 case ICMD_INEG:       /* ..., value  ==> ..., - value                 */
 717
 718                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 719                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 720                         M_NEG(s1, d);
 721                         emit_store_dst(jd, iptr, d);
 722                         break;
 723
 724                 case ICMD_LNEG:       /* ..., value  ==> ..., - value                 */
 725
 726                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 727                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 728                         M_NEG(s1, d); /* XXX */
 729                         emit_store_dst(jd, iptr, d);
 730                         break;
 731
 732                 case ICMD_I2L:        /* ..., value  ==> ..., value                   */
 733
 734                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 735                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 736                         M_INTMOVE(s1, d);
 737                         emit_store_dst(jd, iptr, d);
 738                         break;
 739
 740                 case ICMD_L2I:        /* ..., value  ==> ..., value                   */
 741
 742                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 743                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 744                         M_ISEXT(s1, d);
 745                         emit_store_dst(jd, iptr, d);
 746                         break;
 747
 748                 case ICMD_INT2BYTE:   /* ..., value  ==> ..., value                   */
 749
 750                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 751                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 752                         M_BSEXT(s1, d);
 753                         emit_store_dst(jd, iptr, d);
 754                         break;
 755
 756                 case ICMD_INT2CHAR:   /* ..., value  ==> ..., value                   */
 757
 758                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 759                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 760                         M_CZEXT(s1, d);
 761                         emit_store_dst(jd, iptr, d);
 762                         break;
 763
 764                 case ICMD_INT2SHORT:  /* ..., value  ==> ..., value                   */
 765
 766                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 767                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 768                         M_SSEXT(s1, d);
 769                         emit_store_dst(jd, iptr, d);
 770                         break;
 771
 772
 773                 case ICMD_IADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 774
 775                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 776                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 777                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 778                         M_IADD(s1, s2, d);
 779                         M_EXTSW(d,d);
 780                         emit_store_dst(jd, iptr, d);
 781                         break;
 782
 783                 case ICMD_IADDCONST:  /* ..., value  ==> ..., value + constant        */
 784                                       /* sx.val.i = constant                          */
 785
 786                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 787                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 788                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767)) {
 789                                 M_IADD_IMM(s1, iptr->sx.val.i, d);
 790                         } else {
 791                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 792                                 M_IADD(s1, REG_ITMP2, d);
 793                         }
 794                         emit_store_dst(jd, iptr, d);
 795                         break;
 796
 797                 case ICMD_LADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 798
 799                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 800                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 801                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 802                         M_LADD(s1, s2, d);
 803                         emit_store_dst(jd, iptr, d);
 804                         break;
 805
 806                 case ICMD_LADDCONST:  /* ..., value  ==> ..., value + constant        */
 807                                       /* sx.val.l = constant                          */
 808
 809                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 810                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 811                         /* XXX check me */
 812                         if ((iptr->sx.val.l >= -32768) && (iptr->sx.val.l <= 32767)) {
 813                                 M_LADD_IMM(s1, iptr->sx.val.l, d);
 814                         } else {
 815                                 LCONST(REG_ITMP2, iptr->sx.val.l);
 816                                 M_LADD(s1, REG_ITMP2, d);
 817                         }
 818                         emit_store_dst(jd, iptr, d);
 819                         break;
 820
 821                 case ICMD_ISUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 822
 823                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 824                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 825                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 826                         M_SUB(s1, s2, d);
 827                         emit_store_dst(jd, iptr, d);
 828                         break;
 829
 830                 case ICMD_ISUBCONST:  /* ..., value  ==> ..., value + constant        */
 831                                       /* sx.val.i = constant                          */
 832
 833                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 834                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 835                         if ((iptr->sx.val.i >= -32767) && (iptr->sx.val.i <= 32768)) {
 836                                 M_IADD_IMM(s1, -iptr->sx.val.i, d);
 837                         } else {
 838                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 839                                 M_SUB(s1, REG_ITMP2, d);
 840                         }
 841                         emit_store_dst(jd, iptr, d);
 842                         break;
 843
 844                 case ICMD_LSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 845
 846                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 847                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 848                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 849                         M_SUB(s1, s2, d);
 850                         emit_store_dst(jd, iptr, d);
 851                         break;
 852
 853                 case ICMD_LSUBCONST:  /* ..., value  ==> ..., value - constant        */
 854                                       /* sx.val.l = constant                          */
 855
 856                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 857                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 858                         /* XXX check me */
 859                         if ((iptr->sx.val.l >= -32768) && (iptr->sx.val.l <= 32767)) {
 860                                 M_LADD_IMM(s1, -iptr->sx.val.l, d);
 861                         } else {
 862                                 LCONST(REG_ITMP2, iptr->sx.val.l);
 863                                 M_SUB(s1, REG_ITMP2, d);
 864                         }
 865                         emit_store_dst(jd, iptr, d);
 866                         break;
 867
 868                 case ICMD_IDIV:
 869                 case ICMD_LDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 870
 871                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 872                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 873                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 874                         M_TST(s2);
 875                         M_BEQ(0);
 876                         codegen_add_arithmeticexception_ref(cd);
 877
 878                         M_DIV(s1, s2, d);
 879
 880                         emit_store_dst(jd, iptr, d);
 881                         break;
 882
 883                 case ICMD_IREM:
 884                 case ICMD_LREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 885                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 886                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 887                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 888                         M_TST(s2);
 889                         M_BEQ(0);
 890                         codegen_add_arithmeticexception_ref(cd);
 891
 892                         /* FIXME s1 == -2^63 && s2 == -1 does not work that way */
 893                         M_DIV(s1, s2, d);
 894                         M_MUL( d, s2, d);
 895                         M_SUB(s1,  d, d);
 896                         emit_store_dst(jd, iptr, d);
 897                         break;
 898
 899                 case ICMD_IMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 900
 901                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 902                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 903                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 904                         M_MUL(s1, s2, d);
 905                         emit_store_dst(jd, iptr, d);
 906                         break;
 907
 908                 case ICMD_IMULCONST:  /* ..., value  ==> ..., value * constant        */
 909                                       /* sx.val.i = constant                          */
 910
 911                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 912                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 913                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767))
 914                                 M_MUL_IMM(s1, iptr->sx.val.i, d);
 915                         else {
 916                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 917                                 M_MUL(s1, REG_ITMP3, d);
 918                         }
 919                         emit_store_dst(jd, iptr, d);
 920                         break;
 921
 922                 case ICMD_IDIVPOW2:   /* ..., value  ==> ..., value << constant       */
 923
 924                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 925                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 926                         M_SRA_IMM(s1, iptr->sx.val.i, d);
 927                         M_ADDZE(d, d);
 928                         emit_store_dst(jd, iptr, d);
 929                         break;
 930
 931                 case ICMD_ISHL:       /* ..., val1, val2  ==> ..., val1 << val2       */
 932
 933                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 934                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 935                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 936                         M_AND_IMM(s2, 0x1f, REG_ITMP3);
 937                         M_SLL(s1, REG_ITMP3, d);
 938                         emit_store_dst(jd, iptr, d);
 939                         break;
 940
 941                 case ICMD_ISHLCONST:  /* ..., value  ==> ..., value << constant       */
 942                                       /* sx.val.i = constant                             */
 943
 944                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 945                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 946                         M_SLL_IMM(s1, iptr->sx.val.i & 0x1f, d);
 947                         emit_store_dst(jd, iptr, d);
 948                         break;
 949
 950                 case ICMD_ISHR:       /* ..., val1, val2  ==> ..., val1 >> val2       */
 951
 952                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 953                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 954                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 955                         M_AND_IMM(s2, 0x1f, REG_ITMP3);
 956                         M_SRA(s1, REG_ITMP3, d);
 957                         emit_store_dst(jd, iptr, d);
 958                         break;
 959
 960                 case ICMD_ISHRCONST:  /* ..., value  ==> ..., value >> constant       */
 961                                       /* sx.val.i = constant                             */
 962
 963                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 964                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 965                         M_SRA_IMM(s1, iptr->sx.val.i & 0x1f, d);
 966                         emit_store_dst(jd, iptr, d);
 967                         break;
 968
 969                 case ICMD_IUSHR:      /* ..., val1, val2  ==> ..., val1 >>> val2      */
 970
 971                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 972                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 973                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 974                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 975                         M_SRL(s1, REG_ITMP2, d);
 976                         emit_store_dst(jd, iptr, d);
 977                         break;
 978
 979                 case ICMD_IUSHRCONST: /* ..., value  ==> ..., value >>> constant      */
 980                                       /* sx.val.i = constant                             */
 981
 982                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 983                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 984                         if (iptr->sx.val.i & 0x1f) {
 985                                 M_SRL_IMM(s1, iptr->sx.val.i & 0x1f, d);
 986                         } else {
 987                                 M_INTMOVE(s1, d);
 988                         }
 989                         emit_store_dst(jd, iptr, d);
 990                         break;
 991
 992                 case ICMD_IAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 993                 case ICMD_LAND:
 994
 995                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 996                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 997                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 998                         M_AND(s1, s2, d);
 999                         emit_store_dst(jd, iptr, d);
1000                         break;
1001
1002                 case ICMD_IANDCONST:  /* ..., value  ==> ..., value & constant        */
1003                                       /* sx.val.i = constant                          */
1004
1005                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1006                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1007                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535)) {
1008                                 M_AND_IMM(s1, iptr->sx.val.i, d);
1009                                 }
1010                         /*
1011                         else if (iptr->sx.val.i == 0xffffff) {
1012                                 M_RLWINM(s1, 0, 8, 31, d);
1013                                 }
1014                         */
1015                         else {
1016                                 ICONST(REG_ITMP3, iptr->sx.val.i);
1017                                 M_AND(s1, REG_ITMP3, d);
1018                         }
1019                         emit_store_dst(jd, iptr, d);
1020                         break;
1021
1022                 case ICMD_LANDCONST:  /* ..., value  ==> ..., value & constant        */
1023                                       /* sx.val.l = constant                          */
1024
1025                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1026                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1027                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
1028                                 M_AND_IMM(s1, iptr->sx.val.l, d);
1029                         /*
1030                         else if (iptr->sx.val.l == 0xffffff) {
1031                                 M_RLWINM(s1, 0, 8, 31, d);
1032                                 }
1033                         */
1034                         else {
1035                                 LCONST(REG_ITMP3, iptr->sx.val.l);
1036                                 M_AND(s1, REG_ITMP3, d);
1037                         }
1038                         emit_store_dst(jd, iptr, d);
1039                         break;
1040
1041                 case ICMD_IREMPOW2:   /* ..., value  ==> ..., value % constant        */
1042                                       /* sx.val.i = constant                             */
1043
1044                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1045                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1046                         M_MOV(s1, REG_ITMP2);
1047                         M_CMPI(s1, 0);
1048                         M_BGE(1 + 2*(iptr->sx.val.i >= 32768));
1049                         if (iptr->sx.val.i >= 32768) {
1050                                 M_ADDIS(REG_ZERO, iptr->sx.val.i >> 16, REG_ITMP2);
1051                                 M_OR_IMM(REG_ITMP2, iptr->sx.val.i, REG_ITMP2);
1052                                 M_IADD(s1, REG_ITMP2, REG_ITMP2);
1053                         } else {
1054                                 M_IADD_IMM(s1, iptr->sx.val.i, REG_ITMP2);
1055                         }
1056                         {
1057                                 int b=0, m = iptr->sx.val.i;
1058                                 while (m >>= 1)
1059                                         ++b;
1060                                 M_RLWINM(REG_ITMP2, 0, 0, 30-b, REG_ITMP2);
1061                         }
1062                         M_SUB(s1, REG_ITMP2, d);
1063                         emit_store_dst(jd, iptr, d);
1064                         break;
1065
1066                 case ICMD_IOR:        /* ..., val1, val2  ==> ..., val1 | val2        */
1067                 case ICMD_LOR:
1068
1069                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1070                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1071                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
1072                         M_OR(s1, s2, d);
1073                         emit_store_dst(jd, iptr, d);
1074                         break;
1075
1076                 case ICMD_IORCONST:   /* ..., value  ==> ..., value | constant        */
1077                                       /* sx.val.i = constant                          */
1078
1079                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1080                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1081                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
1082                                 M_OR_IMM(s1, iptr->sx.val.i, d);
1083                         else {
1084                                 ICONST(REG_ITMP3, iptr->sx.val.i);
1085                                 M_OR(s1, REG_ITMP3, d);
1086                         }
1087                         emit_store_dst(jd, iptr, d);
1088                         break;
1089
1090                 case ICMD_LORCONST:   /* ..., value  ==> ..., value | constant        */
1091                                       /* sx.val.l = constant                          */
1092
1093                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1094                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1095                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
1096                                 M_OR_IMM(s1, iptr->sx.val.l, d);
1097                         else {
1098                                 LCONST(REG_ITMP3, iptr->sx.val.l);
1099                                 M_OR(s1, REG_ITMP3, d);
1100                         }
1101                         emit_store_dst(jd, iptr, d);
1102                         break;
1103
1104
1105                 case ICMD_IXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
1106                 case ICMD_LXOR:
1107
1108                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1109                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1110                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1111                         M_XOR(s1, s2, d);
1112                         emit_store_dst(jd, iptr, d);
1113                         break;
1114
1115                 case ICMD_IXORCONST:  /* ..., value  ==> ..., value ^ constant        */
1116                                       /* sx.val.i = constant                          */
1117
1118                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1119                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1120                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
1121                                 M_XOR_IMM(s1, iptr->sx.val.i, d);
1122                         else {
1123                                 ICONST(REG_ITMP3, iptr->sx.val.i);
1124                                 M_XOR(s1, REG_ITMP3, d);
1125                         }
1126                         emit_store_dst(jd, iptr, d);
1127                         break;
1128
1129                 case ICMD_LXORCONST:  /* ..., value  ==> ..., value ^ constant        */
1130                                       /* sx.val.l = constant                          */
1131
1132                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1133                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1134                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
1135                                 M_XOR_IMM(s1, iptr->sx.val.l, d);
1136                         else {
1137                                 LCONST(REG_ITMP3, iptr->sx.val.l);
1138                                 M_XOR(s1, REG_ITMP3, d);
1139                         }
1140                         emit_store_dst(jd, iptr, d);
1141                         break;
1142
1143                 case ICMD_LCMP:       /* ..., val1, val2  ==> ..., val1 cmp val2      */
1144
1145                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1146                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1147                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
1148                         /* XXX implement me!!! */
1149                         emit_store_dst(jd, iptr, d);
1150                         break;
1151                         break;
1152
1153                 case ICMD_IINC:       /* ..., value  ==> ..., value + constant        */
1154                                       /* s1.localindex = variable, sx.val.i = constant*/
1155
1156                         var = &(rd->locals[iptr->s1.localindex][TYPE_INT]);
1157                         if (var->flags & INMEMORY) {
1158                                 s1 = REG_ITMP1;
1159                                 M_LLD(s1, REG_SP, var->regoff * 8);
1160                         }
1161                         else
1162                                 s1 = var->regoff;
1163
1164                         /* XXX implement me more efficiently */
1165                         ICONST(REG_ITMP2, iptr->sx.val.i);
1166                         M_IADD(s1, REG_ITMP2, s1);
1167
1168                         if (var->flags & INMEMORY)
1169                                 M_LST(s1, REG_SP, var->regoff * 8);
1170                         break;
1171
1172
1173                 /* floating operations ************************************************/
1174
1175                 case ICMD_FNEG:       /* ..., value  ==> ..., - value                 */
1176
1177                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1178                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1179                         M_FMOVN(s1, d);
1180                         emit_store_dst(jd, iptr, d);
1181                         break;
1182
1183                 case ICMD_DNEG:       /* ..., value  ==> ..., - value                 */
1184
1185                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1186                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1187                         M_FMOVN(s1, d);
1188                         emit_store_dst(jd, iptr, d);
1189                         break;
1190
1191                 case ICMD_FADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
1192
1193                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1194                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1195                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1196                         M_FADD(s1, s2, d);
1197                         emit_store_dst(jd, iptr, d);
1198                         break;
1199
1200                 case ICMD_DADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
1201
1202                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1203                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1204                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1205                         M_DADD(s1, s2, d);
1206                         emit_store_dst(jd, iptr, d);
1207                         break;
1208
1209                 case ICMD_FSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
1210
1211                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1212                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1213                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1214                         M_FSUB(s1, s2, d);
1215                         emit_store_dst(jd, iptr, d);
1216                         break;
1217
1218                 case ICMD_DSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
1219
1220                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1221                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1222                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1223                         M_DSUB(s1, s2, d);
1224                         emit_store_dst(jd, iptr, d);
1225                         break;
1226
1227                 case ICMD_FMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1228
1229                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1230                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1231                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1232                         M_FMUL(s1, s2, d);
1233                         emit_store_dst(jd, iptr, d);
1234                         break;
1235
1236                 case ICMD_DMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1237
1238                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1239                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1240                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1241                         M_DMUL(s1, s2, d);
1242                         emit_store_dst(jd, iptr, d);
1243                         break;
1244
1245                 case ICMD_FDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1246
1247                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1248                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1249                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1250                         M_FDIV(s1, s2, d);
1251                         emit_store_dst(jd, iptr, d);
1252                         break;
1253
1254                 case ICMD_DDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1255
1256                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1257                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1258                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1259                         M_DDIV(s1, s2, d);
1260                         emit_store_dst(jd, iptr, d);
1261                         break;
1262
1263                 case ICMD_F2I:       /* ..., value  ==> ..., (int) value              */
1264                 case ICMD_D2I:
1265
1266                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1267                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1268                         M_CLR(d);
1269                         disp = dseg_addfloat(cd, 0.0);
1270                         M_FLD(REG_FTMP2, REG_PV, disp);
1271                         M_FCMPU(s1, REG_FTMP2);
1272                         M_BNAN(4);
1273                         disp = dseg_adds4(cd, 0);
1274                         M_CVTDL_C(s1, REG_FTMP1);
1275                         M_LDA(REG_ITMP1, REG_PV, disp);
1276                         M_STFIWX(REG_FTMP1, 0, REG_ITMP1);
1277                         M_ILD(d, REG_PV, disp);
1278                         emit_store_dst(jd, iptr, d);
1279                         break;
1280
1281                 case ICMD_F2D:       /* ..., value  ==> ..., (double) value           */
1282
1283                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1284                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1285                         M_FLTMOVE(s1, d);
1286                         emit_store_dst(jd, iptr, d);
1287                         break;
1288
1289                 case ICMD_D2F:       /* ..., value  ==> ..., (double) value           */
1290
1291                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1292                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1293                         M_CVTDF(s1, d);
1294                         emit_store_dst(jd, iptr, d);
1295                         break;
1296
1297                 case ICMD_FCMPL:      /* ..., val1, val2  ==> ..., val1 fcmpg val2    */
1298                 case ICMD_DCMPL:      /* == => 0, < => 1, > => -1                     */
1299
1300
1301                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1302                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1303                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1304                         M_FCMPU(s2, s1);
1305                         M_IADD_IMM(REG_ZERO, -1, d);
1306                         M_BNAN(4);
1307                         M_BGT(3);
1308                         M_IADD_IMM(REG_ZERO, 0, d);
1309                         M_BGE(1);
1310                         M_IADD_IMM(REG_ZERO, 1, d);
1311                         emit_store_dst(jd, iptr, d);
1312                         break;
1313
1314                 case ICMD_FCMPG:      /* ..., val1, val2  ==> ..., val1 fcmpl val2    */
1315                 case ICMD_DCMPG:      /* == => 0, < => 1, > => -1                     */
1316
1317                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1318                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1319                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1320                         M_FCMPU(s1, s2);
1321                         M_IADD_IMM(REG_ZERO, 1, d);
1322                         M_BNAN(4);
1323                         M_BGT(3);
1324                         M_IADD_IMM(REG_ZERO, 0, d);
1325                         M_BGE(1);
1326                         M_IADD_IMM(REG_ZERO, -1, d);
1327                         emit_store_dst(jd, iptr, d);
1328                         break;
1329
1330                 case ICMD_IF_FCMPEQ:    /* ..., value, value ==> ...                  */
1331                 case ICMD_IF_DCMPEQ:
1332
1333                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1334                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1335                         M_FCMPU(s1, s2);
1336                         M_BNAN(1);
1337                         M_BEQ(0);
1338                         codegen_addreference(cd, iptr->dst.block);
1339                         break;
1340
1341                 case ICMD_IF_FCMPNE:    /* ..., value, value ==> ...                  */
1342                 case ICMD_IF_DCMPNE:
1343
1344                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1345                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1346                         M_FCMPU(s1, s2);
1347                         M_BNAN(0);
1348                         codegen_addreference(cd, iptr->dst.block);
1349                         M_BNE(0);
1350                         codegen_addreference(cd, iptr->dst.block);
1351                         break;
1352
1353
1354                 case ICMD_IF_FCMPL_LT:  /* ..., value, value ==> ...                  */
1355                 case ICMD_IF_DCMPL_LT:
1356
1357                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1358                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1359                         M_FCMPU(s1, s2);
1360                         M_BNAN(0);
1361                         codegen_addreference(cd, iptr->dst.block);
1362                         M_BLT(0);
1363                         codegen_addreference(cd, iptr->dst.block);
1364                         break;
1365
1366                 case ICMD_IF_FCMPL_GT:  /* ..., value, value ==> ...                  */
1367                 case ICMD_IF_DCMPL_GT:
1368
1369                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1370                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1371                         M_FCMPU(s1, s2);
1372                         M_BNAN(1);
1373                         M_BGT(0);
1374                         codegen_addreference(cd, iptr->dst.block);
1375                         break;
1376
1377                 case ICMD_IF_FCMPL_LE:  /* ..., value, value ==> ...                  */
1378                 case ICMD_IF_DCMPL_LE:
1379
1380                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1381                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1382                         M_FCMPU(s1, s2);
1383                         M_BNAN(0);
1384                         codegen_addreference(cd, iptr->dst.block);
1385                         M_BLE(0);
1386                         codegen_addreference(cd, iptr->dst.block);
1387                         break;
1388
1389                 case ICMD_IF_FCMPL_GE:  /* ..., value, value ==> ...                  */
1390                 case ICMD_IF_DCMPL_GE:
1391
1392                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1393                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1394                         M_FCMPU(s1, s2);
1395                         M_BNAN(1);
1396                         M_BGE(0);
1397                         codegen_addreference(cd, iptr->dst.block);
1398                         break;
1399
1400                 case ICMD_IF_FCMPG_LT:  /* ..., value, value ==> ...                  */
1401                 case ICMD_IF_DCMPG_LT:
1402
1403                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1404                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1405                         M_FCMPU(s1, s2);
1406                         M_BNAN(1);
1407                         M_BLT(0);
1408                         codegen_addreference(cd, iptr->dst.block);
1409                         break;
1410
1411                 case ICMD_IF_FCMPG_GT:  /* ..., value, value ==> ...                  */
1412                 case ICMD_IF_DCMPG_GT:
1413
1414                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1415                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1416                         M_FCMPU(s1, s2);
1417                         M_BNAN(0);
1418                         codegen_addreference(cd, iptr->dst.block);
1419                         M_BGT(0);
1420                         codegen_addreference(cd, iptr->dst.block);
1421                         break;
1422
1423                 case ICMD_IF_FCMPG_LE:  /* ..., value, value ==> ...                  */
1424                 case ICMD_IF_DCMPG_LE:
1425
1426                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1427                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1428                         M_FCMPU(s1, s2);
1429                         M_BNAN(1);
1430                         M_BLE(0);
1431                         codegen_addreference(cd, iptr->dst.block);
1432                         break;
1433
1434                 case ICMD_IF_FCMPG_GE:  /* ..., value, value ==> ...                  */
1435                 case ICMD_IF_DCMPG_GE:
1436
1437                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1438                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1439                         M_FCMPU(s1, s2);
1440                         M_BNAN(0);
1441                         codegen_addreference(cd, iptr->dst.block);
1442                         M_BGE(0);
1443                         codegen_addreference(cd, iptr->dst.block);
1444                         break;
1445
1446
1447                 /* memory operations **************************************************/
1448
1449                 case ICMD_ARRAYLENGTH: /* ..., arrayref  ==> ..., length              */
1450
1451                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1452                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1453                         gen_nullptr_check(s1);
1454                         M_ILD(d, s1, OFFSET(java_arrayheader, size));
1455                         emit_store_dst(jd, iptr, d);
1456                         break;
1457
1458                 case ICMD_BALOAD:     /* ..., arrayref, index  ==> ..., value         */
1459
1460                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1461                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1462                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1463                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1464                                 gen_nullptr_check(s1);
1465                                 gen_bound_check;
1466                         }
1467                         M_IADD_IMM(s2, OFFSET(java_chararray, data[0]), REG_ITMP2);
1468                         M_LBZX(d, s1, REG_ITMP2);
1469                         M_BSEXT(d, d);
1470                         emit_store_dst(jd, iptr, d);
1471                         break;
1472
1473                 case ICMD_CALOAD:     /* ..., arrayref, index  ==> ..., value         */
1474
1475                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1476                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1477                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1478                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1479                                 gen_nullptr_check(s1);
1480                                 gen_bound_check;
1481                         }
1482                         M_SLL_IMM(s2, 1, REG_ITMP2);
1483                         M_IADD_IMM(REG_ITMP2, OFFSET(java_chararray, data[0]), REG_ITMP2);
1484                         M_LHAX(d, s1, REG_ITMP2);
1485                         emit_store_dst(jd, iptr, d);
1486                         break;
1487
1488                 case ICMD_SALOAD:     /* ..., arrayref, index  ==> ..., value         */
1489
1490                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1491                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1492                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1493                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1494                                 gen_nullptr_check(s1);
1495                                 gen_bound_check;
1496                         }
1497                         M_SLL_IMM(s2, 1, REG_ITMP2);
1498                         M_IADD_IMM(REG_ITMP2, OFFSET(java_shortarray, data[0]), REG_ITMP2);
1499                         M_LHAX(d, s1, REG_ITMP2);
1500                         emit_store_dst(jd, iptr, d);
1501                         break;
1502
1503                 case ICMD_IALOAD:     /* ..., arrayref, index  ==> ..., value         */
1504
1505                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1506                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1507                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1508                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1509                                 gen_nullptr_check(s1);
1510                                 gen_bound_check;
1511                         }
1512                         M_SLL_IMM(s2, 2, REG_ITMP2);
1513                         M_IADD_IMM(REG_ITMP2, OFFSET(java_intarray, data[0]), REG_ITMP2);
1514                         M_LWZX(d, s1, REG_ITMP2);
1515                         emit_store_dst(jd, iptr, d);
1516                         break;
1517
1518                 case ICMD_LALOAD:     /* ..., arrayref, index  ==> ..., value         */
1519
1520                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1521                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1522                         d = codegen_reg_of_var(rd, iptr->opc, iptr->dst.var, PACK_REGS(REG_ITMP2, REG_ITMP1));
1523                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1524                                 gen_nullptr_check(s1);
1525                                 gen_bound_check;
1526                         }
1527                         M_SLL_IMM(s2, 3, REG_ITMP2);
1528                         M_IADD(s1, REG_ITMP2, REG_ITMP2);
1529                         M_LLD_INTERN(d, REG_ITMP2, OFFSET(java_longarray, data[0]));
1530                         emit_store_dst(jd, iptr, d);
1531                         break;
1532
1533                 case ICMD_FALOAD:     /* ..., arrayref, index  ==> ..., value         */
1534
1535                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1536                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1537                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1538                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1539                                 gen_nullptr_check(s1);
1540                                 gen_bound_check;
1541                         }
1542                         M_SLL_IMM(s2, 2, REG_ITMP2);
1543                         M_IADD_IMM(REG_ITMP2, OFFSET(java_floatarray, data[0]), REG_ITMP2);
1544                         M_LFSX(d, s1, REG_ITMP2);
1545                         emit_store_dst(jd, iptr, d);
1546                         break;
1547
1548                 case ICMD_DALOAD:     /* ..., arrayref, index  ==> ..., value         */
1549
1550                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1551                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1552                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1553                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1554                                 gen_nullptr_check(s1);
1555                                 gen_bound_check;
1556                         }
1557                         M_SLL_IMM(s2, 3, REG_ITMP2);
1558                         M_IADD_IMM(REG_ITMP2, OFFSET(java_doublearray, data[0]), REG_ITMP2);
1559                         M_LFDX(d, s1, REG_ITMP2);
1560                         emit_store_dst(jd, iptr, d);
1561                         break;
1562
1563                 case ICMD_AALOAD:     /* ..., arrayref, index  ==> ..., value         */
1564
1565                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1566                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1567                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1568                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1569                                 gen_nullptr_check(s1);
1570                                 gen_bound_check;
1571                         }
1572                         M_SLL_IMM(s2, 3, REG_ITMP2);
1573                         M_IADD_IMM(REG_ITMP2, OFFSET(java_objectarray, data[0]), REG_ITMP2);
1574                         M_ALDX(d, s1, REG_ITMP2);
1575                         emit_store_dst(jd, iptr, d);
1576                         break;
1577
1578
1579                 case ICMD_BASTORE:    /* ..., arrayref, index, value  ==> ...         */
1580
1581                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1582                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1583                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1584                                 gen_nullptr_check(s1);
1585                                 gen_bound_check;
1586                         }
1587                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1588                         M_IADD_IMM(s2, OFFSET(java_bytearray, data[0]), REG_ITMP2);
1589                         M_STBX(s3, s1, REG_ITMP2);
1590                         break;
1591
1592                 case ICMD_CASTORE:    /* ..., arrayref, index, value  ==> ...         */
1593
1594                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1595                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1596                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1597                                 gen_nullptr_check(s1);
1598                                 gen_bound_check;
1599                         }
1600                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1601                         M_SLL_IMM(s2, 1, REG_ITMP2);
1602                         M_IADD_IMM(REG_ITMP2, OFFSET(java_chararray, data[0]), REG_ITMP2);
1603                         M_STHX(s3, s1, REG_ITMP2);
1604                         break;
1605
1606                 case ICMD_SASTORE:    /* ..., arrayref, index, value  ==> ...         */
1607
1608                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1609                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1610                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1611                                 gen_nullptr_check(s1);
1612                                 gen_bound_check;
1613                         }
1614                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1615                         M_SLL_IMM(s2, 1, REG_ITMP2);
1616                         M_IADD_IMM(REG_ITMP2, OFFSET(java_shortarray, data[0]), REG_ITMP2);
1617                         M_STHX(s3, s1, REG_ITMP2);
1618                         break;
1619
1620                 case ICMD_IASTORE:    /* ..., arrayref, index, value  ==> ...         */
1621
1622                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1623                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1624                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1625                                 gen_nullptr_check(s1);
1626                                 gen_bound_check;
1627                         }
1628                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1629                         M_SLL_IMM(s2, 2, REG_ITMP2);
1630                         M_IADD_IMM(REG_ITMP2, OFFSET(java_intarray, data[0]), REG_ITMP2);
1631                         M_STWX(s3, s1, REG_ITMP2);
1632                         break;
1633
1634                 case ICMD_LASTORE:    /* ..., arrayref, index, value  ==> ...         */
1635
1636                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1637                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1638                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1639                                 gen_nullptr_check(s1);
1640                                 gen_bound_check;
1641                         }
1642                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1643                         M_SLL_IMM(s2, 3, REG_ITMP2);
1644                         M_IADD_IMM(REG_ITMP2, OFFSET(java_longarray, data[0]), REG_ITMP2);
1645                         M_LST(s3, s1, REG_ITMP2);
1646                         break;
1647
1648                 case ICMD_FASTORE:    /* ..., arrayref, index, value  ==> ...         */
1649
1650                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1651                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1652                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1653                                 gen_nullptr_check(s1);
1654                                 gen_bound_check;
1655                         }
1656                         s3 = emit_load_s3(jd, iptr, REG_FTMP3);
1657                         M_SLL_IMM(s2, 2, REG_ITMP2);
1658                         M_IADD_IMM(REG_ITMP2, OFFSET(java_floatarray, data[0]), REG_ITMP2);
1659                         M_STFSX(s3, s1, REG_ITMP2);
1660                         break;
1661
1662                 case ICMD_DASTORE:    /* ..., arrayref, index, value  ==> ...         */
1663
1664                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1665                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1666                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1667                                 gen_nullptr_check(s1);
1668                                 gen_bound_check;
1669                         }
1670                         s3 = emit_load_s3(jd, iptr, REG_FTMP3);
1671                         M_SLL_IMM(s2, 3, REG_ITMP2);
1672                         M_IADD_IMM(REG_ITMP2, OFFSET(java_doublearray, data[0]), REG_ITMP2);
1673                         M_STFDX(s3, s1, REG_ITMP2);
1674                         break;
1675
1676                 case ICMD_AASTORE:    /* ..., arrayref, index, value  ==> ...         */
1677
1678                         s1 = emit_load_s1(jd, iptr, rd->argintregs[0]);
1679                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1680                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1681                                 gen_nullptr_check(s1);
1682                                 gen_bound_check;
1683                         }
1684                         s3 = emit_load_s3(jd, iptr, rd->argintregs[1]);
1685
1686                         disp = dseg_addaddress(cd, BUILTIN_canstore);
1687                         M_ALD(REG_ITMP3, REG_PV, disp);
1688                         M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
1689                         M_MTCTR(REG_ITMP3);
1690
1691                         M_INTMOVE(s1, rd->argintregs[0]);
1692                         M_INTMOVE(s3, rd->argintregs[1]);
1693
1694                         M_JSR;
1695                         M_TST(REG_RESULT);
1696                         M_BEQ(0);
1697                         codegen_add_arraystoreexception_ref(cd);
1698
1699                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1700                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1701                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1702                         M_SLL_IMM(s2, 3, REG_ITMP2);
1703                         M_IADD_IMM(REG_ITMP2, OFFSET(java_objectarray, data[0]), REG_ITMP2);
1704                         M_ASTX(s3, s1, REG_ITMP2);
1705                         break;
1706
1707
1708                 case ICMD_GETSTATIC:  /* ...  ==> ..., value                          */
1709
1710                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1711                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1712
1713                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1714                                 disp = dseg_addaddress(cd, NULL);
1715
1716                                 codegen_addpatchref(cd, PATCHER_get_putstatic,
1717                                                                         iptr->sx.s23.s3.uf, disp);
1718
1719                                 if (opt_showdisassemble)
1720                                         M_NOP;
1721
1722                         } else {
1723                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1724
1725                                 fieldtype = fi->type;
1726                                 disp = dseg_addaddress(cd, &(fi->value));
1727
1728                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1729                                         codegen_addpatchref(cd, PATCHER_clinit, fi->class, disp);
1730
1731                                         if (opt_showdisassemble)
1732                                                 M_NOP;
1733                                 }
1734                         }
1735
1736                         M_ALD(REG_ITMP1, REG_PV, disp);
1737                         switch (fieldtype) {
1738                         case TYPE_INT:
1739                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1740                                 M_ILD_INTERN(d, REG_ITMP1, 0);
1741                                 break;
1742                         case TYPE_LNG:
1743                                 d = codegen_reg_of_var(rd, iptr->opc, iptr->dst.var, PACK_REGS(REG_ITMP2, REG_ITMP1));
1744                                 M_ILD_INTERN(GET_LOW_REG(d), REG_ITMP1, 4);/* keep this order */
1745                                 M_ILD_INTERN(GET_HIGH_REG(d), REG_ITMP1, 0);/*keep this order */
1746                                 break;
1747                         case TYPE_ADR:
1748                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1749                                 M_ALD_INTERN(d, REG_ITMP1, 0);
1750                                 break;
1751                         case TYPE_FLT:
1752                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1753                                 M_FLD_INTERN(d, REG_ITMP1, 0);
1754                                 break;
1755                         case TYPE_DBL:
1756                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1757                                 M_DLD_INTERN(d, REG_ITMP1, 0);
1758                                 break;
1759                         }
1760                         emit_store_dst(jd, iptr, d);
1761                         break;
1762
1763                 case ICMD_PUTSTATIC:  /* ..., value  ==> ...                          */
1764
1765
1766                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1767                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1768
1769                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1770                                 disp = dseg_addaddress(cd, NULL);
1771
1772                                 codegen_addpatchref(cd, PATCHER_get_putstatic,
1773                                                                         iptr->sx.s23.s3.uf, disp);
1774
1775                                 if (opt_showdisassemble)
1776                                         M_NOP;
1777
1778                         } else {
1779                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1780
1781                                 fieldtype = fi->type;
1782                                 disp = dseg_addaddress(cd, &(fi->value));
1783
1784                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1785                                         codegen_addpatchref(cd, PATCHER_clinit, fi->class, disp);
1786
1787                                         if (opt_showdisassemble)
1788                                                 M_NOP;
1789                                 }
1790                         }
1791
1792                         M_ALD(REG_ITMP1, REG_PV, disp);
1793                         switch (fieldtype) {
1794                         case TYPE_INT:
1795                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1796                                 M_IST_INTERN(s1, REG_ITMP1, 0);
1797                                 break;
1798                         case TYPE_LNG:
1799                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1800                                 M_LST_INTERN(s1, REG_ITMP1, 0);
1801                                 break;
1802                         case TYPE_ADR:
1803                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1804                                 M_AST_INTERN(s1, REG_ITMP1, 0);
1805                                 break;
1806                         case TYPE_FLT:
1807                                 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1808                                 M_FST_INTERN(s1, REG_ITMP1, 0);
1809                                 break;
1810                         case TYPE_DBL:
1811                                 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1812                                 M_DST_INTERN(s1, REG_ITMP1, 0);
1813                                 break;
1814                         }
1815                         break;
1816
1817
1818                 case ICMD_GETFIELD:   /* ...  ==> ..., value                          */
1819
1820                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1821                         gen_nullptr_check(s1);
1822
1823                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1824                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1825
1826                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1827
1828                                 codegen_addpatchref(cd, PATCHER_get_putfield,
1829                                                                         iptr->sx.s23.s3.uf, 0);
1830
1831                                 if (opt_showdisassemble)
1832                                         M_NOP;
1833
1834                                 disp = 0;
1835
1836                         } else {
1837                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1838
1839                                 fieldtype = fi->type;
1840                                 disp = fi->offset;
1841                         }
1842
1843                         switch (fieldtype) {
1844                         case TYPE_INT:
1845                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1846                                 M_ILD(d, s1, disp);
1847                                 break;
1848                         case TYPE_LNG:
1849                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1850                                 M_LLD(d, s1, disp);
1851                                 break;
1852                         case TYPE_ADR:
1853                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1854                                 M_ALD(d, s1, disp);
1855                                 break;
1856                         case TYPE_FLT:
1857                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1858                                 M_FLD(d, s1, disp);
1859                                 break;
1860                         case TYPE_DBL:
1861                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1862                                 M_DLD(d, s1, disp);
1863                                 break;
1864                         }
1865                         emit_store_dst(jd, iptr, d);
1866                         break;
1867
1868                 case ICMD_PUTFIELD:   /* ..., value  ==> ...                          */
1869
1870                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1871                         gen_nullptr_check(s1);
1872
1873                         if (!IS_FLT_DBL_TYPE(fieldtype)) {
1874                                 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1875                         } else {
1876                                 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1877                         }
1878
1879                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1880                                 unresolved_field *uf = iptr->sx.s23.s3.uf;
1881
1882                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1883
1884                                 codegen_addpatchref(cd, PATCHER_get_putfield,
1885                                                                         iptr->sx.s23.s3.uf, 0);
1886
1887                                 if (opt_showdisassemble)
1888                                         M_NOP;
1889
1890                                 disp = 0;
1891
1892                         } else {
1893                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1894
1895                                 fieldtype = fi->type;
1896                                 disp = fi->offset;
1897                         }
1898
1899                         switch (fieldtype) {
1900                         case TYPE_INT:
1901                                 M_IST(s2, s1, disp);
1902                                 break;
1903                         case TYPE_LNG:
1904                                 M_LST(s2, s1, disp);
1905                                 break;
1906                         case TYPE_ADR:
1907                                 M_AST(s2, s1, disp);
1908                                 break;
1909                         case TYPE_FLT:
1910                                 M_FST(s2, s1, disp);
1911                                 break;
1912                         case TYPE_DBL:
1913                                 M_DST(s2, s1, disp);
1914                                 break;
1915                         }
1916                         break;
1917
1918
1919                 /* branch operations **************************************************/
1920
1921                 case ICMD_ATHROW:       /* ..., objectref ==> ... (, objectref)       */
1922
1923                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1924                         M_LNGMOVE(s1, REG_ITMP1_XPTR);
1925
1926 #ifdef ENABLE_VERIFIER
1927                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1928                                 codegen_addpatchref(cd, PATCHER_athrow_areturn,
1929                                                                         iptr->sx.s23.s2.uc, 0);
1930
1931                                 if (opt_showdisassemble)
1932                                         M_NOP;
1933                         }
1934 #endif /* ENABLE_VERIFIER */
1935
1936                         disp = dseg_addaddress(cd, asm_handle_exception);
1937                         M_ALD(REG_ITMP2, REG_PV, disp);
1938                         M_MTCTR(REG_ITMP2);
1939
1940                         if (jd->isleafmethod) M_MFLR(REG_ITMP3);         /* save LR        */
1941                         M_BL(0);                                        /* get current PC */
1942                         M_MFLR(REG_ITMP2_XPC);
1943                         if (jd->isleafmethod) M_MTLR(REG_ITMP3);         /* restore LR     */
1944                         M_RTS;                                          /* jump to CTR    */
1945
1946                         ALIGNCODENOP;
1947                         break;
1948
1949                 case ICMD_GOTO:         /* ... ==> ...                                */
1950                         M_BR(0);
1951                         codegen_addreference(cd, iptr->dst.block);
1952                         ALIGNCODENOP;
1953                         break;
1954
1955                 case ICMD_JSR:          /* ... ==> ...                                */
1956
1957                         if (jd->isleafmethod)
1958                                 M_MFLR(REG_ITMP2);
1959                         M_BL(0);
1960                         M_MFLR(REG_ITMP1);
1961                         M_IADD_IMM(REG_ITMP1, jd->isleafmethod ? 4*4 : 3*4, REG_ITMP1);
1962                         if (jd->isleafmethod)
1963                                 M_MTLR(REG_ITMP2);
1964                         M_BR(0);
1965                         codegen_addreference(cd, iptr->sx.s23.s3.jsrtarget.block);
1966                         break;
1967
1968                 case ICMD_RET:          /* ... ==> ...                                */
1969                                         /* s1.localindex = local variable                       */
1970
1971                         var = &(rd->locals[iptr->s1.localindex][TYPE_ADR]);
1972                         if (var->flags & INMEMORY) {
1973                                 M_ALD(REG_ITMP1, REG_SP, var->regoff * 4);
1974                                 M_MTCTR(REG_ITMP1);
1975                         } else {
1976                                 M_MTCTR(var->regoff);
1977                         }
1978                         M_RTS;
1979                         ALIGNCODENOP;
1980                         break;
1981
1982                 case ICMD_IFNULL:       /* ..., value ==> ...                         */
1983
1984                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1985                         M_TST(s1);
1986                         M_BEQ(0);
1987                         codegen_addreference(cd, iptr->dst.block);
1988                         break;
1989
1990                 case ICMD_IFNONNULL:    /* ..., value ==> ...                         */
1991
1992                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1993                         M_TST(s1);
1994                         M_BNE(0);
1995                         codegen_addreference(cd, iptr->dst.block);
1996                         break;
1997
1998                 case ICMD_IFLT:
1999                 case ICMD_IFLE:
2000                 case ICMD_IFNE:
2001                 case ICMD_IFGT:
2002                 case ICMD_IFGE:
2003                 case ICMD_IFEQ:         /* ..., value ==> ...                         */
2004
2005                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2006                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767))
2007                                 M_CMPI(s1, iptr->sx.val.i);
2008                         else {
2009                                 ICONST(REG_ITMP2, iptr->sx.val.i);
2010                                 M_CMP(s1, REG_ITMP2);
2011                         }
2012                         switch (iptr->opc) {
2013                         case ICMD_IFLT:
2014                                 M_BLT(0);
2015                                 break;
2016                         case ICMD_IFLE:
2017                                 M_BLE(0);
2018                                 break;
2019                         case ICMD_IFNE:
2020                                 M_BNE(0);
2021                                 break;
2022                         case ICMD_IFGT:
2023                                 M_BGT(0);
2024                                 break;
2025                         case ICMD_IFGE:
2026                                 M_BGE(0);
2027                                 break;
2028                         case ICMD_IFEQ:
2029                                 M_BEQ(0);
2030                                 break;
2031                         }
2032                         codegen_addreference(cd, iptr->dst.block);
2033                         break;
2034
2035                 #if 0
2036                 case ICMD_IF_LEQ:       /* ..., value ==> ...                         */
2037
2038                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2039                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
2040                         if (iptr->sx.val.l == 0) {
2041                                 M_OR_TST(s1, s2, REG_ITMP3);
2042                         } else if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
2043                                 M_XOR_IMM(s2, 0, REG_ITMP2);
2044                                 M_XOR_IMM(s1, iptr->sx.val.l & 0xffff, REG_ITMP1);
2045                                 M_OR_TST(REG_ITMP1, REG_ITMP2, REG_ITMP3);
2046                         } else {
2047                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
2048                                 M_XOR(s1, REG_ITMP3, REG_ITMP1);
2049                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
2050                                 M_XOR(s2, REG_ITMP3, REG_ITMP2);
2051                                 M_OR_TST(REG_ITMP1, REG_ITMP2, REG_ITMP3);
2052                         }
2053                         M_BEQ(0);
2054                         codegen_addreference(cd, iptr->dst.block);
2055                         break;
2056
2057                 case ICMD_IF_LLT:       /* ..., value ==> ...                         */
2058                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2059                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
2060                         if (iptr->sx.val.l == 0) {
2061                                 /* if high word is less than zero, the whole long is too */
2062                                 M_CMPI(s2, 0);
2063                         } else if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
2064                                 M_CMPI(s2, 0);
2065                                 M_BLT(0);
2066                                 codegen_addreference(cd, iptr->dst.block);
2067                                 M_BGT(2);
2068                                 M_CMPUI(s1, iptr->sx.val.l & 0xffff);
2069                         } else {
2070                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
2071                                 M_CMP(s2, REG_ITMP3);
2072                                 M_BLT(0);
2073                                 codegen_addreference(cd, iptr->dst.block);
2074                                 M_BGT(3);
2075                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
2076                                 M_CMPU(s1, REG_ITMP3);
2077                         }
2078                         M_BLT(0);
2079                         codegen_addreference(cd, iptr->dst.block);
2080                         break;
2081
2082                 case ICMD_IF_LLE:       /* ..., value ==> ...                         */
2083
2084                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2085                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
2086 /*                      if (iptr->sx.val.l == 0) { */
2087 /*                              M_OR(s1, s2, REG_ITMP3); */
2088 /*                              M_CMPI(REG_ITMP3, 0); */
2089
2090 /*                      } else  */
2091                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
2092                                 M_CMPI(s2, 0);
2093                                 M_BLT(0);
2094                                 codegen_addreference(cd, iptr->dst.block);
2095                                 M_BGT(2);
2096                                 M_CMPUI(s1, iptr->sx.val.l & 0xffff);
2097                         } else {
2098                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
2099                                 M_CMP(s2, REG_ITMP3);
2100                                 M_BLT(0);
2101                                 codegen_addreference(cd, iptr->dst.block);
2102                                 M_BGT(3);
2103                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
2104                                 M_CMPU(s1, REG_ITMP3);
2105                         }
2106                         M_BLE(0);
2107                         codegen_addreference(cd, iptr->dst.block);
2108                         break;
2109
2110                 case ICMD_IF_LNE:       /* ..., value ==> ...                         */
2111
2112                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2113                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
2114                         if (iptr->sx.val.l == 0) {
2115                                 M_OR_TST(s1, s2, REG_ITMP3);
2116                         } else if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
2117                                 M_XOR_IMM(s2, 0, REG_ITMP2);
2118                                 M_XOR_IMM(s1, iptr->sx.val.l & 0xffff, REG_ITMP1);
2119                                 M_OR_TST(REG_ITMP1, REG_ITMP2, REG_ITMP3);
2120                         } else {
2121                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
2122                                 M_XOR(s1, REG_ITMP3, REG_ITMP1);
2123                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
2124                                 M_XOR(s2, REG_ITMP3, REG_ITMP2);
2125                                 M_OR_TST(REG_ITMP1, REG_ITMP2, REG_ITMP3);
2126                         }
2127                         M_BNE(0);
2128                         codegen_addreference(cd, iptr->dst.block);
2129                         break;
2130
2131                 case ICMD_IF_LGT:       /* ..., value ==> ...                         */
2132
2133                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2134                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
2135 /*                      if (iptr->sx.val.l == 0) { */
2136 /*                              M_OR(s1, s2, REG_ITMP3); */
2137 /*                              M_CMPI(REG_ITMP3, 0); */
2138
2139 /*                      } else  */
2140                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
2141                                 M_CMPI(s2, 0);
2142                                 M_BGT(0);
2143                                 codegen_addreference(cd, iptr->dst.block);
2144                                 M_BLT(2);
2145                                 M_CMPUI(s1, iptr->sx.val.l & 0xffff);
2146                         } else {
2147                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
2148                                 M_CMP(s2, REG_ITMP3);
2149                                 M_BGT(0);
2150                                 codegen_addreference(cd, iptr->dst.block);
2151                                 M_BLT(3);
2152                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
2153                                 M_CMPU(s1, REG_ITMP3);
2154                         }
2155                         M_BGT(0);
2156                         codegen_addreference(cd, iptr->dst.block);
2157                         break;
2158
2159                 case ICMD_IF_LGE:       /* ..., value ==> ...                         */
2160
2161                         /* TODO, remove me */
2162                         s1 = emit_load_s1_low(jd, iptr, REG_ITMP1);
2163                         s2 = emit_load_s2_high(jd, iptr, REG_ITMP2);
2164                         if (iptr->sx.val.l == 0) {
2165                                 /* if high word is greater equal zero, the whole long is too */
2166                                 M_CMPI(s2, 0);
2167                         } else if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 0xffff)) {
2168                                 M_CMPI(s2, 0);
2169                                 M_BGT(0);
2170                                 codegen_addreference(cd, iptr->dst.block);
2171                                 M_BLT(2);
2172                                 M_CMPUI(s1, iptr->sx.val.l & 0xffff);
2173                         } else {
2174                                 ICONST(REG_ITMP3, iptr->sx.val.l >> 32);
2175                                 M_CMP(s2, REG_ITMP3);
2176                                 M_BGT(0);
2177                                 codegen_addreference(cd, iptr->dst.block);
2178                                 M_BLT(3);
2179                                 ICONST(REG_ITMP3, iptr->sx.val.l & 0xffffffff);
2180                                 M_CMPU(s1, REG_ITMP3);
2181                         }
2182                         M_BGE(0);
2183                         codegen_addreference(cd, iptr->dst.block);
2184                         break;
2185                 #endif
2186
2187                 case ICMD_IF_ICMPEQ:    /* ..., value, value ==> ...                  */
2188                 case ICMD_IF_ACMPEQ:    /* op1 = target JavaVM pc                     */
2189                 case ICMD_IF_LCMPEQ:
2190
2191                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2192                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2193                         M_CMP(s1, s2);
2194                         M_BEQ(0);
2195                         codegen_addreference(cd, iptr->dst.block);
2196                         break;
2197
2198                 case ICMD_IF_ICMPNE:    /* ..., value, value ==> ...                  */
2199                 case ICMD_IF_ACMPNE:    /* op1 = target JavaVM pc                     */
2200                 case ICMD_IF_LCMPNE:
2201
2202                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2203                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2204                         M_CMP(s1, s2);
2205                         M_BNE(0);
2206                         codegen_addreference(cd, iptr->dst.block);
2207                         break;
2208
2209
2210                 case ICMD_IF_ICMPLT:    /* ..., value, value ==> ...                  */
2211                 case ICMD_IF_LCMPLT:
2212
2213                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2214                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2215                         M_CMP(s1, s2);
2216                         M_BLT(0);
2217                         codegen_addreference(cd, iptr->dst.block);
2218                         break;
2219
2220                 case ICMD_IF_ICMPGT:    /* ..., value, value ==> ...                  */
2221                 case ICMD_IF_LCMPGT:
2222
2223                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2224                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2225                         M_CMP(s1, s2);
2226                         M_BGT(0);
2227                         codegen_addreference(cd, iptr->dst.block);
2228                         break;
2229
2230                 case ICMD_IF_ICMPLE:    /* ..., value, value ==> ...                  */
2231                 case ICMD_IF_LCMPLE:
2232
2233                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2234                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2235                         M_CMP(s1, s2);
2236                         M_BLE(0);
2237                         codegen_addreference(cd, iptr->dst.block);
2238                         break;
2239
2240                 case ICMD_IF_ICMPGE:    /* ..., value, value ==> ...                  */
2241                 case ICMD_IF_LCMPGE:
2242
2243                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2244                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
2245                         M_CMP(s1, s2);
2246                         M_BGE(0);
2247                         codegen_addreference(cd, iptr->dst.block);
2248                         break;
2249
2250
2251                 case ICMD_LRETURN:      /* ..., retvalue ==> ...                      */
2252                 case ICMD_IRETURN:      /* ..., retvalue ==> ...                      */
2253
2254                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2255                         M_LNGMOVE(s1, REG_RESULT);
2256                         goto nowperformreturn;
2257
2258                 case ICMD_ARETURN:      /* ..., retvalue ==> ...                      */
2259
2260                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
2261                         M_LNGMOVE(s1, REG_RESULT);
2262
2263 #ifdef ENABLE_VERIFIER
2264                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2265                                 codegen_addpatchref(cd, PATCHER_athrow_areturn,
2266                                                                         iptr->sx.s23.s2.uc, 0);
2267
2268                                 if (opt_showdisassemble)
2269                                         M_NOP;
2270                         }
2271 #endif /* ENABLE_VERIFIER */
2272
2273                         goto nowperformreturn;
2274
2275                 case ICMD_FRETURN:      /* ..., retvalue ==> ...                      */
2276                 case ICMD_DRETURN:
2277
2278                         s1 = emit_load_s1(jd, iptr, REG_FRESULT);
2279                         M_FLTMOVE(s1, REG_FRESULT);
2280                         goto nowperformreturn;
2281
2282                 case ICMD_RETURN:      /* ...  ==> ...                                */
2283
2284 nowperformreturn:
2285                         {
2286                         s4 i, p;
2287
2288                         p = stackframesize;
2289
2290                         /* call trace function */
2291
2292 #if !defined(NDEBUG)
2293                         if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
2294                                 emit_verbosecall_exit(jd);
2295                         }
2296 #endif
2297
2298 #if defined(ENABLE_THREADS)
2299                         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
2300                                 disp = dseg_addaddress(cd, LOCK_monitor_exit);
2301                                 M_ALD(REG_ITMP3, REG_PV, disp);
2302                                 M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
2303                                 M_MTCTR(REG_ITMP3);
2304
2305                                 /* we need to save the proper return value */
2306
2307                                 switch (iptr->opc) {
2308                                 case ICMD_LRETURN:
2309                                 case ICMD_IRETURN:
2310                                 case ICMD_ARETURN:
2311                                         /* fall through */
2312                                         M_LST(REG_RESULT , REG_SP, rd->memuse * 8 + 8);
2313                                         break;
2314                                 case ICMD_FRETURN:
2315                                         M_FST(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
2316                                         break;
2317                                 case ICMD_DRETURN:
2318                                         M_DST(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
2319                                         break;
2320                                 }
2321
2322                                 M_ALD(rd->argintregs[0], REG_SP, rd->memuse * 8);
2323                                 M_JSR;
2324
2325                                 /* and now restore the proper return value */
2326
2327                                 switch (iptr->opc) {
2328                                 case ICMD_LRETURN:
2329                                 case ICMD_IRETURN:
2330                                 case ICMD_ARETURN:
2331                                         /* fall through */
2332                                         M_LLD(REG_RESULT , REG_SP, rd->memuse * 8 + 8);
2333                                         break;
2334                                 case ICMD_FRETURN:
2335                                         M_FLD(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
2336                                         break;
2337                                 case ICMD_DRETURN:
2338                                         M_DLD(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
2339                                         break;
2340                                 }
2341                         }
2342 #endif
2343
2344                         /* restore return address                                         */
2345
2346                         if (!jd->isleafmethod) {
2347                                 /* ATTENTION: Don't use REG_ZERO (r0) here, as M_ALD
2348                                    may have a displacement overflow. */
2349
2350                                 M_ALD(REG_ITMP1, REG_SP, p * 8 + LA_LR_OFFSET);
2351                                 M_MTLR(REG_ITMP1);
2352                         }
2353
2354                         /* restore saved registers                                        */
2355
2356                         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
2357                                 p--; M_LLD(rd->savintregs[i], REG_SP, p * 8);
2358                         }
2359                         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
2360                                 p--; M_DLD(rd->savfltregs[i], REG_SP, p * 8);
2361                         }
2362
2363                         /* deallocate stack                                               */
2364
2365                         if (stackframesize)
2366                                 M_LDA(REG_SP, REG_SP, stackframesize * 8);
2367
2368                         M_RET;
2369                         ALIGNCODENOP;
2370                         }
2371                         break;
2372
2373
2374                 case ICMD_TABLESWITCH:  /* ..., index ==> ...                         */
2375                         {
2376                         s4 i, l;
2377                         branch_target_t *table;
2378
2379                         table = iptr->dst.table;
2380
2381                         l = iptr->sx.s23.s2.tablelow;
2382                         i = iptr->sx.s23.s3.tablehigh;
2383
2384                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2385                         if (l == 0) {
2386                                 M_INTMOVE(s1, REG_ITMP1);
2387                         } else if (l <= 32768) {
2388                                 M_LDA(REG_ITMP1, s1, -l);
2389                         } else {
2390                                 ICONST(REG_ITMP2, l);
2391                                 M_SUB(s1, REG_ITMP2, REG_ITMP1);
2392                         }
2393
2394                         /* number of targets */
2395                         i = i - l + 1;
2396
2397                         /* range check */
2398
2399                         M_CMPUI(REG_ITMP1, i - 1);
2400                         M_BGT(0);
2401                         codegen_addreference(cd, table[0].block);
2402
2403                         /* build jump table top down and use address of lowest entry */
2404
2405                         table += i;
2406
2407                         while (--i >= 0) {
2408                                 dseg_addtarget(cd, table->block);
2409                                 --table;
2410                                 }
2411                         }
2412
2413                         /* length of dataseg after last dseg_addtarget is used by load */
2414
2415                         M_SLL_IMM(REG_ITMP1, 2, REG_ITMP1);
2416                         M_IADD(REG_ITMP1, REG_PV, REG_ITMP2);
2417                         M_ALD(REG_ITMP2, REG_ITMP2, -(cd->dseglen));
2418                         M_MTCTR(REG_ITMP2);
2419                         M_RTS;
2420                         ALIGNCODENOP;
2421                         break;
2422
2423
2424                 case ICMD_LOOKUPSWITCH: /* ..., key ==> ...                           */
2425                         {
2426                         s4 i, val;
2427                         lookup_target_t *lookup;
2428
2429                         lookup = iptr->dst.lookup;
2430
2431                         i = iptr->sx.s23.s2.lookupcount;
2432
2433                         MCODECHECK((i<<2)+8);
2434                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2435                         while (--i >= 0) {
2436                                 val = lookup->value;
2437                                 if ((val >= -32768) && (val <= 32767)) {
2438                                         M_CMPI(s1, val);
2439                                 } else {
2440                                         a = dseg_adds4(cd, val);
2441                                         M_ILD(REG_ITMP2, REG_PV, a);
2442                                         M_CMP(s1, REG_ITMP2);
2443                                 }
2444                                 M_BEQ(0);
2445                                 codegen_addreference(cd, lookup->target.block);
2446                                 ++lookup;
2447                         }
2448
2449                         M_BR(0);
2450                         codegen_addreference(cd, iptr->sx.s23.s3.lookupdefault.block);
2451
2452                         ALIGNCODENOP;
2453                         break;
2454                         }
2455
2456
2457                 case ICMD_BUILTIN:      /* ..., [arg1, [arg2 ...]] ==> ...            */
2458
2459                         bte = iptr->sx.s23.s3.bte;
2460                         md = bte->md;
2461                         goto gen_method;
2462
2463                 case ICMD_INVOKESTATIC: /* ..., [arg1, [arg2 ...]] ==> ...            */
2464
2465                 case ICMD_INVOKESPECIAL:/* ..., objectref, [arg1, [arg2 ...]] ==> ... */
2466                 case ICMD_INVOKEVIRTUAL:/* op1 = arg count, val.a = method pointer    */
2467                 case ICMD_INVOKEINTERFACE:
2468
2469                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2470                                 md = iptr->sx.s23.s3.um->methodref->parseddesc.md;
2471                                 lm = NULL;
2472                         }
2473                         else {
2474                                 lm = iptr->sx.s23.s3.fmiref->p.method;
2475                                 md = lm->parseddesc;
2476                         }
2477
2478 gen_method:
2479                         s3 = md->paramcount;
2480
2481                         MCODECHECK((s3 << 1) + 64);
2482
2483                         /* copy arguments to registers or stack location */
2484
2485                         for (s3 = s3 - 1; s3 >= 0; s3--) {
2486                                 src = iptr->sx.s23.s2.args[s3];
2487
2488                                 if (src->varkind == ARGVAR)
2489                                         continue;
2490                                 if (IS_INT_LNG_TYPE(src->type)) {
2491                                         if (!md->params[s3].inmemory) {
2492                                                 s1 = rd->argintregs[md->params[s3].regoff];
2493                                                 d = emit_load(jd, iptr, src, s1);
2494                                                 M_LNGMOVE(d, s1);
2495                                         } else {
2496                                                 d = emit_load(jd, iptr, src, REG_ITMP1);
2497                                                 M_LST(d, REG_SP, md->params[s3].regoff * 8);
2498                                         }
2499                                 } else {
2500                                         if (!md->params[s3].inmemory) {
2501                                                 s1 = rd->argfltregs[md->params[s3].regoff];
2502                                                 d = emit_load(jd, iptr, src, s1);
2503                                                 M_FLTMOVE(d, s1);
2504                                         } else {
2505                                                 d = emit_load(jd, iptr, src, REG_FTMP1);
2506                                                 if (IS_2_WORD_TYPE(src->type))
2507                                                         M_DST(d, REG_SP, md->params[s3].regoff * 8);
2508                                                 else
2509                                                         M_FST(d, REG_SP, md->params[s3].regoff * 8);
2510                                         }
2511                                 }
2512                         } /* end of for */
2513
2514                         switch (iptr->opc) {
2515                         case ICMD_BUILTIN:
2516                                 disp = dseg_addaddress(cd, bte->fp);
2517                                 d = md->returntype.type;
2518
2519                                 M_ALD(REG_PV, REG_PV, disp);    /* pointer to built-in-function descriptor */
2520                                 M_ALD(REG_ITMP1, REG_PV, 0);    /* function entry point address, what about TOC */
2521                                 M_MTCTR(REG_ITMP1);
2522                                 M_JSR;
2523
2524                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2525                                 M_MFLR(REG_ITMP1);
2526                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2527
2528
2529                                 if (INSTRUCTION_MUST_CHECK(iptr)) {
2530                                         M_CMPI(REG_RESULT, 0);
2531                                         M_BEQ(0);
2532                                         codegen_add_fillinstacktrace_ref(cd);
2533                                 }
2534                                 break;
2535
2536                         case ICMD_INVOKESPECIAL:
2537                                 gen_nullptr_check(rd->argintregs[0]);
2538                                 M_ILD(REG_ITMP1, rd->argintregs[0], 0); /* hardware nullptr   */
2539                                 /* fall through */
2540
2541                         case ICMD_INVOKESTATIC:
2542                                 if (lm == NULL) {
2543                                         unresolved_method *um = iptr->sx.s23.s3.um;
2544
2545                                         disp = dseg_addaddress(cd, NULL);
2546
2547                                         codegen_addpatchref(cd, PATCHER_invokestatic_special,
2548                                                                                 um, disp);
2549
2550                                         if (opt_showdisassemble)
2551                                                 M_NOP;
2552
2553                                         d = md->returntype.type;
2554
2555                                 } else {
2556                                         disp = dseg_addaddress(cd, lm->stubroutine);
2557                                         d = md->returntype.type;
2558                                 }
2559
2560                                 M_NOP;
2561                                 M_ALD(REG_PV, REG_PV, disp);
2562                                 M_MTCTR(REG_PV);
2563                                 M_JSR;
2564                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2565                                 M_MFLR(REG_ITMP1);
2566                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2567                                 break;
2568
2569                         case ICMD_INVOKEVIRTUAL:
2570                                 gen_nullptr_check(rd->argintregs[0]);
2571
2572                                 if (lm == NULL) {
2573                                         unresolved_method *um = iptr->sx.s23.s3.um;
2574
2575                                         codegen_addpatchref(cd, PATCHER_invokevirtual, um, 0);
2576
2577                                         if (opt_showdisassemble)
2578                                                 M_NOP;
2579
2580                                         s1 = 0;
2581                                         d = md->returntype.type;
2582
2583                                 } else {
2584                                         s1 = OFFSET(vftbl_t, table[0]) +
2585                                                 sizeof(methodptr) * lm->vftblindex;
2586                                         d = md->returntype.type;
2587                                 }
2588
2589                                 M_ALD(REG_METHODPTR, rd->argintregs[0],
2590                                           OFFSET(java_objectheader, vftbl));
2591                                 M_ALD(REG_PV, REG_METHODPTR, s1);
2592                                 M_MTCTR(REG_PV);
2593                                 M_JSR;
2594                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2595                                 M_MFLR(REG_ITMP1);
2596                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2597                                 break;
2598
2599                         case ICMD_INVOKEINTERFACE:
2600                                 gen_nullptr_check(rd->argintregs[0]);
2601
2602                                 if (lm == NULL) {
2603                                         unresolved_method *um = iptr->sx.s23.s3.um;
2604
2605                                         codegen_addpatchref(cd, PATCHER_invokeinterface, um, 0);
2606
2607                                         if (opt_showdisassemble)
2608                                                 M_NOP;
2609
2610                                         s1 = 0;
2611                                         s2 = 0;
2612                                         d = md->returntype.type;
2613
2614                                 } else {
2615                                         s1 = OFFSET(vftbl_t, interfacetable[0]) -
2616                                                 sizeof(methodptr*) * lm->class->index;
2617
2618                                         s2 = sizeof(methodptr) * (lm - lm->class->methods);
2619
2620                                         d = md->returntype.type;
2621                                 }
2622
2623                                 M_ALD(REG_METHODPTR, rd->argintregs[0],
2624                                           OFFSET(java_objectheader, vftbl));
2625                                 M_ALD(REG_METHODPTR, REG_METHODPTR, s1);
2626                                 M_ALD(REG_PV, REG_METHODPTR, s2);
2627                                 M_MTCTR(REG_PV);
2628                                 M_JSR;
2629                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2630                                 M_MFLR(REG_ITMP1);
2631                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2632                                 break;
2633                         }
2634
2635                         /* d contains return type */
2636
2637                         if (d != TYPE_VOID) {
2638                                 if (IS_INT_LNG_TYPE(d)) {
2639                                         s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2640                                         M_MOV(REG_RESULT, s1);
2641                                 } else {
2642                                         s1 = codegen_reg_of_dst(jd, iptr, REG_FRESULT);
2643                                         M_FLTMOVE(REG_FRESULT, s1);
2644                                 }
2645                                 emit_store_dst(jd, iptr, s1);
2646                         }
2647                         break;
2648
2649
2650                 case ICMD_CHECKCAST:  /* ..., objectref ==> ..., objectref            */
2651                                       /* val.a: (classinfo*) superclass               */
2652
2653                         /*  superclass is an interface:
2654                          *
2655                          *  OK if ((sub == NULL) ||
2656                          *         (sub->vftbl->interfacetablelength > super->index) &&
2657                          *         (sub->vftbl->interfacetable[-super->index] != NULL));
2658                          *
2659                          *  superclass is a class:
2660                          *
2661                          *  OK if ((sub == NULL) || (0
2662                          *         <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2663                          *         super->vftbl->diffvall));
2664                          */
2665
2666                         if (!(iptr->flags.bits & INS_FLAG_ARRAY)) {
2667                                 /* object type cast-check */
2668
2669                                 classinfo *super;
2670                                 vftbl_t   *supervftbl;
2671                                 s4         superindex;
2672
2673                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2674                                         super = NULL;
2675                                         superindex = 0;
2676                                         supervftbl = NULL;
2677                                 }
2678                                 else {
2679                                         super = iptr->sx.s23.s3.c.cls;
2680                                         superindex = super->index;
2681                                         supervftbl = super->vftbl;
2682                                 }
2683
2684 #if defined(ENABLE_THREADS)
2685                                 codegen_threadcritrestart(cd, cd->mcodeptr - cd->mcodebase);
2686 #endif
2687                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2688
2689                                 /* calculate interface checkcast code size */
2690
2691                                 s2 = 7;
2692                                 if (!super)
2693                                         s2 += (opt_showdisassemble ? 1 : 0);
2694
2695                                 /* calculate class checkcast code size */
2696
2697                                 s3 = 8 + (s1 == REG_ITMP1);
2698                                 if (!super)
2699                                         s3 += (opt_showdisassemble ? 1 : 0);
2700
2701                                 /* if class is not resolved, check which code to call */
2702
2703                                 if (!super) {
2704                                         M_TST(s1);
2705                                         M_BEQ(3 + (opt_showdisassemble ? 1 : 0) + s2 + 1 + s3);
2706
2707                                         disp = dseg_adds4(cd, 0);                     /* super->flags */
2708
2709                                         codegen_addpatchref(cd,
2710                                                                                 PATCHER_checkcast_instanceof_flags,
2711                                                                                 iptr->sx.s23.s3.c.ref,
2712                                                                                 disp);
2713
2714                                         if (opt_showdisassemble)
2715                                                 M_NOP;
2716
2717                                         M_ILD(REG_ITMP2, REG_PV, disp);
2718                                         M_AND_IMM(REG_ITMP2, ACC_INTERFACE, REG_ITMP2);
2719                                         M_BEQ(s2 + 1);
2720                                 }
2721
2722                                 /* interface checkcast code */
2723
2724                                 if (!super || (super->flags & ACC_INTERFACE)) {
2725                                         if (super) {
2726                                                 M_TST(s1);
2727                                                 M_BEQ(s2);
2728
2729                                         } else {
2730                                                 codegen_addpatchref(cd,
2731                                                                                         PATCHER_checkcast_instanceof_interface,
2732                                                                                         iptr->sx.s23.s3.c.ref,
2733                                                                                         0);
2734
2735                                                 if (opt_showdisassemble)
2736                                                         M_NOP;
2737                                         }
2738
2739                                         M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2740                                         M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, interfacetablelength));
2741                                         M_LDATST(REG_ITMP3, REG_ITMP3, -superindex);
2742                                         M_BLE(0);
2743                                         codegen_add_classcastexception_ref(cd, s1);     /*XXX s1?? */
2744                                         M_ALD(REG_ITMP3, REG_ITMP2,
2745                                                   OFFSET(vftbl_t, interfacetable[0]) -
2746                                                   superindex * sizeof(methodptr*));
2747                                         M_TST(REG_ITMP3);
2748                                         M_BEQ(0);
2749                                         codegen_add_classcastexception_ref(cd, s1);     /*XXX s1??*/
2750
2751                                         if (!super)
2752                                                 M_BR(s3);
2753                                 }
2754
2755                                 /* class checkcast code */
2756
2757                                 if (!super || !(super->flags & ACC_INTERFACE)) {
2758                                         disp = dseg_addaddress(cd, supervftbl);
2759
2760                                         if (super) {
2761                                                 M_TST(s1);
2762                                                 M_BEQ(s3);
2763
2764                                         } else {
2765                                                 codegen_addpatchref(cd, PATCHER_checkcast_class,
2766                                                                                         iptr->sx.s23.s3.c.ref,
2767                                                                                         disp);
2768
2769                                                 if (opt_showdisassemble)
2770                                                         M_NOP;
2771                                         }
2772
2773                                         M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2774 #if defined(ENABLE_THREADS)
2775                                         codegen_threadcritstart(cd, cd->mcodeptr - cd->mcodebase);
2776 #endif
2777                                         M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2778                                         M_ALD(REG_ITMP2, REG_PV, disp);
2779                                         if (s1 != REG_ITMP1) {
2780                                                 M_ILD(REG_ITMP1, REG_ITMP2, OFFSET(vftbl_t, baseval));
2781                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2782 #if defined(ENABLE_THREADS)
2783                                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2784 #endif
2785                                                 M_SUB(REG_ITMP3, REG_ITMP1, REG_ITMP3);
2786                                         } else {
2787                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, baseval));
2788                                                 M_SUB(REG_ITMP3, REG_ITMP2, REG_ITMP3);
2789                                                 M_ALD(REG_ITMP2, REG_PV, disp);
2790                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2791 #if defined(ENABLE_THREADS)
2792                                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2793 #endif
2794                                         }
2795                                         M_CMP(REG_ITMP3, REG_ITMP2);
2796                                         M_BGT(0);
2797                                         codegen_add_classcastexception_ref(cd, s1); /* XXX s1? */
2798                                 }
2799                                 d = codegen_reg_of_dst(jd, iptr, s1);
2800
2801                         } else {
2802                                 /* array type cast-check */
2803
2804                                 s1 = emit_load_s1(jd, iptr, rd->argintregs[0]);
2805                                 M_INTMOVE(s1, rd->argintregs[0]);
2806
2807                                 disp = dseg_addaddress(cd, iptr->sx.s23.s3.c.cls);
2808
2809                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2810                                         codegen_addpatchref(cd, PATCHER_builtin_arraycheckcast,
2811                                                                                 iptr->sx.s23.s3.c.ref,
2812                                                                                 disp);
2813
2814                                         if (opt_showdisassemble)
2815                                                 M_NOP;
2816                                 }
2817
2818                                 M_ALD(rd->argintregs[1], REG_PV, disp);
2819                                 disp = dseg_addaddress(cd, BUILTIN_arraycheckcast);
2820                                 M_ALD(REG_ITMP2, REG_PV, disp);
2821                                 M_ALD(REG_ITMP2, REG_ITMP2, 0); /* TOC */
2822                                 M_MTCTR(REG_ITMP2);
2823                                 M_JSR;
2824                                 M_TST(REG_RESULT);
2825                                 M_BEQ(0);
2826                                 codegen_add_classcastexception_ref(cd, s1); /* XXX s1? */
2827
2828                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2829                                 d = codegen_reg_of_dst(jd, iptr, s1);
2830                         }
2831                         M_INTMOVE(s1, d);
2832                         emit_store_dst(jd, iptr, d);
2833                         break;
2834
2835                 case ICMD_INSTANCEOF: /* ..., objectref ==> ..., intresult            */
2836                                       /* val.a: (classinfo*) superclass               */
2837
2838                         /*  superclass is an interface:
2839                          *
2840                          *  return (sub != NULL) &&
2841                          *         (sub->vftbl->interfacetablelength > super->index) &&
2842                          *         (sub->vftbl->interfacetable[-super->index] != NULL);
2843                          *
2844                          *  superclass is a class:
2845                          *
2846                          *  return ((sub != NULL) && (0
2847                          *          <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2848                          *          super->vftbl->diffvall));
2849                          */
2850
2851                         {
2852                         classinfo *super;
2853                         vftbl_t   *supervftbl;
2854                         s4         superindex;
2855
2856                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2857                                 super = NULL;
2858                                 superindex = 0;
2859                                 supervftbl = NULL;
2860                         }
2861                         else {
2862                                 super = iptr->sx.s23.s3.c.cls;
2863                                 superindex = super->index;
2864                                 supervftbl = super->vftbl;
2865                         }
2866
2867 #if defined(ENABLE_THREADS)
2868             codegen_threadcritrestart(cd, cd->mcodeptr - cd->mcodebase);
2869 #endif
2870                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2871                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
2872                         if (s1 == d) {
2873                                 M_MOV(s1, REG_ITMP1);
2874                                 s1 = REG_ITMP1;
2875                         }
2876
2877                         /* calculate interface instanceof code size */
2878
2879                         s2 = 8;
2880                         if (!super)
2881                                 s2 += (opt_showdisassemble ? 1 : 0);
2882
2883                         /* calculate class instanceof code size */
2884
2885                         s3 = 10;
2886                         if (!super)
2887                                 s3 += (opt_showdisassemble ? 1 : 0);
2888
2889                         M_CLR(d);
2890
2891                         /* if class is not resolved, check which code to call */
2892
2893                         if (!super) {
2894                                 M_TST(s1);
2895                                 M_BEQ(3 + (opt_showdisassemble ? 1 : 0) + s2 + 1 + s3);
2896
2897                                 disp = dseg_adds4(cd, 0);                     /* super->flags */
2898
2899                                 codegen_addpatchref(cd, PATCHER_checkcast_instanceof_flags,
2900                                                                         iptr->sx.s23.s3.c.ref, disp);
2901
2902                                 if (opt_showdisassemble)
2903                                         M_NOP;
2904
2905                                 M_ILD(REG_ITMP3, REG_PV, disp);
2906                                 M_AND_IMM(REG_ITMP3, ACC_INTERFACE, REG_ITMP3);
2907                                 M_BEQ(s2 + 1);
2908                         }
2909
2910                         /* interface instanceof code */
2911
2912                         if (!super || (super->flags & ACC_INTERFACE)) {
2913                                 if (super) {
2914                                         M_TST(s1);
2915                                         M_BEQ(s2);
2916
2917                                 } else {
2918                                         codegen_addpatchref(cd,
2919                                                                                 PATCHER_checkcast_instanceof_interface,
2920                                                                                 iptr->sx.s23.s3.c.ref, 0);
2921
2922                                         if (opt_showdisassemble)
2923                                                 M_NOP;
2924                                 }
2925
2926                                 M_ALD(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
2927                                 M_ILD(REG_ITMP3, REG_ITMP1, OFFSET(vftbl_t, interfacetablelength));
2928                                 M_LDATST(REG_ITMP3, REG_ITMP3, -superindex);
2929                                 M_BLE(4);
2930                                 M_ALD(REG_ITMP1, REG_ITMP1,
2931                                           OFFSET(vftbl_t, interfacetable[0]) -
2932                                           superindex * sizeof(methodptr*));
2933                                 M_TST(REG_ITMP1);
2934                                 M_BEQ(1);
2935                                 M_IADD_IMM(REG_ZERO, 1, d);
2936
2937                                 if (!super)
2938                                         M_BR(s3);
2939                         }
2940
2941                         /* class instanceof code */
2942
2943                         if (!super || !(super->flags & ACC_INTERFACE)) {
2944                                 disp = dseg_addaddress(cd, supervftbl);
2945
2946                                 if (super) {
2947                                         M_TST(s1);
2948                                         M_BEQ(s3);
2949
2950                                 } else {
2951                                         codegen_addpatchref(cd, PATCHER_instanceof_class,
2952                                                                                 iptr->sx.s23.s3.c.ref,
2953                                                                                 disp);
2954
2955                                         if (opt_showdisassemble) {
2956                                                 M_NOP;
2957                                         }
2958                                 }
2959
2960                                 M_ALD(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
2961                                 M_ALD(REG_ITMP2, REG_PV, disp);
2962 #if defined(ENABLE_THREADS)
2963                                 codegen_threadcritstart(cd, cd->mcodeptr - cd->mcodebase);
2964 #endif
2965                                 M_ILD(REG_ITMP1, REG_ITMP1, OFFSET(vftbl_t, baseval));
2966                                 M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2967                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2968 #if defined(ENABLE_THREADS)
2969                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2970 #endif
2971                                 M_SUB(REG_ITMP1, REG_ITMP3, REG_ITMP1);
2972                                 M_CMPU(REG_ITMP1, REG_ITMP2);
2973                                 M_CLR(d);
2974                                 M_BGT(1);
2975                                 M_IADD_IMM(REG_ZERO, 1, d);
2976                         }
2977                         emit_store_dst(jd, iptr, d);
2978                         }
2979                         break;
2980
2981                 case ICMD_MULTIANEWARRAY:/* ..., cnt1, [cnt2, ...] ==> ..., arrayref  */
2982
2983                         /* check for negative sizes and copy sizes to stack if necessary  */
2984
2985                         MCODECHECK((iptr->s1.argcount << 1) + 64);
2986
2987                         for (s1 = iptr->s1.argcount; --s1 >= 0; ) {
2988
2989                                 src = iptr->sx.s23.s2.args[s1];
2990
2991                                 /* copy SAVEDVAR sizes to stack */
2992
2993                                 if (src->varkind != ARGVAR) {
2994                                         s2 = emit_load(jd, iptr, src, REG_ITMP1);
2995 #if defined(__DARWIN__)
2996                                         M_IST(s2, REG_SP, LA_SIZE + (s1 + INT_ARG_CNT) * 4);
2997 #else
2998                                         M_IST(s2, REG_SP, LA_SIZE + (s1 + 3) * 4);
2999 #endif
3000                                 }
3001                         }
3002
3003                         /* a0 = dimension count */
3004
3005                         ICONST(rd->argintregs[0], iptr->s1.argcount);
3006
3007                         /* is patcher function set? */
3008
3009                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
3010                                 disp = dseg_addaddress(cd, NULL);
3011
3012                                 codegen_addpatchref(cd, PATCHER_builtin_multianewarray,
3013                                                                         iptr->sx.s23.s3.c.ref, disp);
3014
3015                                 if (opt_showdisassemble)
3016                                         M_NOP;
3017
3018                         } else {
3019                                 disp = dseg_addaddress(cd, iptr->sx.s23.s3.c.cls);
3020                         }
3021
3022                         /* a1 = arraydescriptor */
3023
3024                         M_ALD(rd->argintregs[1], REG_PV, disp);
3025
3026                         /* a2 = pointer to dimensions = stack pointer */
3027
3028 #if defined(__DARWIN__)
3029                         M_LDA(rd->argintregs[2], REG_SP, LA_SIZE + INT_ARG_CNT * 4);
3030 #else
3031                         M_LDA(rd->argintregs[2], REG_SP, LA_SIZE + 3 * 4);
3032 #endif
3033
3034                         disp = dseg_addaddress(cd, BUILTIN_multianewarray);
3035                         M_ALD(REG_ITMP3, REG_PV, disp);
3036                         M_MTCTR(REG_ITMP3);
3037                         M_JSR;
3038
3039                         /* check for exception before result assignment */
3040
3041                         M_CMPI(REG_RESULT, 0);
3042                         M_BEQ(0);
3043                         codegen_add_fillinstacktrace_ref(cd);
3044
3045                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
3046                         M_INTMOVE(REG_RESULT, d);
3047                         emit_store_dst(jd, iptr, d);
3048                         break;
3049
3050                 default:
3051                         *exceptionptr =
3052                                 new_internalerror("Unknown ICMD %d during code generation",
3053                                                                   iptr->opc);
3054                         return false;
3055         } /* switch */
3056
3057         } /* for instruction */
3058
3059         /* copy values to interface registers */
3060
3061         len = bptr->outdepth;
3062         MCODECHECK(64 + len);
3063 #if defined(ENABLE_LSRA)
3064         if (!opt_lsra)
3065 #endif
3066         while (len) {
3067                 len--;
3068                 src = bptr->outvars[len];
3069                 if ((src->varkind != STACKVAR)) {
3070                         s2 = src->type;
3071                         if (IS_FLT_DBL_TYPE(s2)) {
3072                                 s1 = emit_load(jd, iptr, src, REG_FTMP1);
3073                                 if (!(rd->interfaces[len][s2].flags & INMEMORY))
3074                                         M_FLTMOVE(s1, rd->interfaces[len][s2].regoff);
3075                                 else
3076                                         M_DST(s1, REG_SP, rd->interfaces[len][s2].regoff * 4);
3077
3078                         } else {
3079                                 s1 = emit_load(jd, iptr, src, REG_ITMP1);
3080                                 if (!(rd->interfaces[len][s2].flags & INMEMORY)) {
3081                                         if (IS_2_WORD_TYPE(s2))
3082                                                 M_LNGMOVE(s1, rd->interfaces[len][s2].regoff);
3083                                         else
3084                                                 M_INTMOVE(s1, rd->interfaces[len][s2].regoff);
3085
3086                                 } else {
3087                                         if (IS_2_WORD_TYPE(s2))
3088                                                 M_LST(s1, REG_SP, rd->interfaces[len][s2].regoff * 4);
3089                                         else
3090                                                 M_IST(s1, REG_SP, rd->interfaces[len][s2].regoff * 4);
3091                                 }
3092                         }
3093                 }
3094         }
3095         } /* if (bptr -> flags >= BBREACHED) */
3096         } /* for basic block */
3097
3098         dseg_createlinenumbertable(cd);
3099
3100
3101         /* generate exception and patcher stubs */
3102
3103         {
3104                 exceptionref *eref;
3105                 patchref     *pref;
3106                 u4            mcode;
3107                 u1           *savedmcodeptr;
3108                 u1           *tmpmcodeptr;
3109
3110                 savedmcodeptr = NULL;
3111
3112                 /* generate exception stubs */
3113
3114                 for (eref = cd->exceptionrefs; eref != NULL; eref = eref->next) {
3115                         gen_resolvebranch(cd->mcodebase + eref->branchpos,
3116                                                           eref->branchpos, cd->mcodeptr - cd->mcodebase);
3117
3118                         MCODECHECK(100);
3119
3120                         /* Check if the exception is an
3121                            ArrayIndexOutOfBoundsException.  If so, move index register
3122                            into REG_ITMP1. */
3123
3124                         if (eref->reg != -1)
3125                                 M_MOV(eref->reg, REG_ITMP1);
3126
3127                         /* calcuate exception address */
3128
3129                         M_LDA(REG_ITMP2_XPC, REG_PV, eref->branchpos - 4);
3130
3131                         /* move function to call into REG_ITMP3 */
3132
3133                         disp = dseg_addaddress(cd, eref->function);
3134                         M_ALD(REG_ITMP3, REG_PV, disp);
3135                         M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
3136
3137                         if (savedmcodeptr != NULL) {
3138                                 disp = ((u4 *) savedmcodeptr) - (((u4 *) cd->mcodeptr) + 1);
3139                                 M_BR(disp);
3140
3141                         } else {
3142                                 savedmcodeptr = cd->mcodeptr;
3143
3144                                 if (jd->isleafmethod) {
3145                                         M_MFLR(REG_ZERO);
3146                                         M_AST(REG_ZERO, REG_SP, stackframesize * 8 + LA_LR_OFFSET);
3147                                 }
3148
3149                                 M_MOV(REG_PV, rd->argintregs[0]);
3150                                 M_MOV(REG_SP, rd->argintregs[1]);
3151
3152                                 if (jd->isleafmethod)
3153                                         M_MOV(REG_ZERO, rd->argintregs[2]);
3154                                 else
3155                                         M_ALD(rd->argintregs[2],
3156                                                   REG_SP, stackframesize * 8 + LA_LR_OFFSET);
3157
3158                                 M_MOV(REG_ITMP2_XPC, rd->argintregs[3]);
3159                                 M_MOV(REG_ITMP1, rd->argintregs[4]);
3160
3161                                 M_STDU(REG_SP, REG_SP, -(LA_SIZE + 6 * 8));
3162                                 M_AST(REG_ITMP2_XPC, REG_SP, LA_SIZE + 5 * 8);
3163
3164                                 M_MTCTR(REG_ITMP3);
3165                                 M_JSR;
3166                                 M_MOV(REG_RESULT, REG_ITMP1_XPTR);
3167
3168                                 M_ALD(REG_ITMP2_XPC, REG_SP, LA_SIZE + 5 * 8);
3169                                 M_LADD_IMM(REG_SP, LA_SIZE + 6 * 8, REG_SP);
3170
3171                                 if (jd->isleafmethod) {
3172                                         /* XXX FIXME: REG_ZERO can cause problems here! */
3173                                         assert(stackframesize * 8 <= 32767);
3174
3175                                         M_ALD(REG_ZERO, REG_SP, stackframesize * 8 + LA_LR_OFFSET);
3176                                         M_MTLR(REG_ZERO);
3177                                 }
3178
3179                                 disp = dseg_addaddress(cd, asm_handle_exception);
3180                                 M_ALD(REG_ITMP3, REG_PV, disp);
3181                                 M_MTCTR(REG_ITMP3);
3182                                 M_RTS;
3183                         }
3184                 }
3185
3186
3187                 /* generate code patching stub call code */
3188
3189                 for (pref = cd->patchrefs; pref != NULL; pref = pref->next) {
3190                         /* check code segment size */
3191
3192                         MCODECHECK(16);
3193
3194                         /* Get machine code which is patched back in later. The
3195                            call is 1 instruction word long. */
3196
3197                         tmpmcodeptr = (u1 *) (cd->mcodebase + pref->branchpos);
3198
3199                         mcode = *((u4 *) tmpmcodeptr);
3200
3201                         /* Patch in the call to call the following code (done at
3202                            compile time). */
3203
3204                         savedmcodeptr = cd->mcodeptr;   /* save current mcodeptr          */
3205                         cd->mcodeptr  = tmpmcodeptr;    /* set mcodeptr to patch position */
3206
3207                         disp = ((u4 *) savedmcodeptr) - (((u4 *) tmpmcodeptr) + 1);
3208                         M_BR(disp);
3209
3210                         cd->mcodeptr = savedmcodeptr;   /* restore the current mcodeptr   */
3211
3212                         /* create stack frame - keep stack 16-byte aligned */
3213
3214                         M_AADD_IMM(REG_SP, -8 * 8, REG_SP);
3215
3216                         /* calculate return address and move it onto the stack */
3217
3218                         M_LDA(REG_ITMP3, REG_PV, pref->branchpos);
3219                         M_AST_INTERN(REG_ITMP3, REG_SP, 5 * 8);
3220
3221                         /* move pointer to java_objectheader onto stack */
3222
3223 #if defined(ENABLE_THREADS)
3224                         /* order reversed because of data segment layout */
3225
3226                         (void) dseg_addaddress(cd, NULL);                         /* flcword    */
3227                         (void) dseg_addaddress(cd, lock_get_initial_lock_word()); /* monitorPtr */
3228                         disp = dseg_addaddress(cd, NULL);                         /* vftbl      */
3229
3230                         M_LDA(REG_ITMP3, REG_PV, disp);
3231                         M_AST_INTERN(REG_ITMP3, REG_SP, 4 * 8);
3232 #else
3233                         /* do nothing */
3234 #endif
3235
3236                         /* move machine code onto stack */
3237
3238                         disp = dseg_adds4(cd, mcode);
3239                         M_ILD(REG_ITMP3, REG_PV, disp);
3240                         M_IST_INTERN(REG_ITMP3, REG_SP, 3 * 8);
3241
3242                         /* move class/method/field reference onto stack */
3243
3244                         disp = dseg_addaddress(cd, pref->ref);
3245                         M_ALD(REG_ITMP3, REG_PV, disp);
3246                         M_AST_INTERN(REG_ITMP3, REG_SP, 2 * 8);
3247
3248                         /* move data segment displacement onto stack */
3249
3250                         disp = dseg_addaddress(cd, pref->disp);
3251                         M_LLD(REG_ITMP3, REG_PV, disp);
3252                         M_IST_INTERN(REG_ITMP3, REG_SP, 1 * 8);
3253
3254                         /* move patcher function pointer onto stack */
3255
3256                         disp = dseg_addaddress(cd, pref->patcher);
3257                         M_ALD(REG_ITMP3, REG_PV, disp);
3258                         M_AST_INTERN(REG_ITMP3, REG_SP, 0 * 8);
3259
3260                         disp = dseg_addaddress(cd, asm_patcher_wrapper);
3261                         M_ALD(REG_ITMP3, REG_PV, disp);
3262                         M_MTCTR(REG_ITMP3);
3263                         M_RTS;
3264                 }
3265
3266                 /* generate replacement-out stubs */
3267
3268 #if 0
3269                 {
3270                         int i;
3271
3272                         replacementpoint = jd->code->rplpoints;
3273
3274                         for (i = 0; i < jd->code->rplpointcount; ++i, ++replacementpoint) {
3275                                 /* check code segment size */
3276
3277                                 MCODECHECK(100);
3278
3279                                 /* note start of stub code */
3280
3281                                 replacementpoint->outcode = (u1 *) (cd->mcodeptr - cd->mcodebase);
3282
3283                                 /* make machine code for patching */
3284
3285                                 tmpmcodeptr  = cd->mcodeptr;
3286                                 cd->mcodeptr = (u1 *) &(replacementpoint->mcode) + 1 /* big-endian */;
3287
3288                                 disp = (ptrint)((s4*)replacementpoint->outcode - (s4*)replacementpoint->pc) - 1;
3289                                 M_BR(disp);
3290
3291                                 cd->mcodeptr = tmpmcodeptr;
3292
3293                                 /* create stack frame - keep 16-byte aligned */
3294
3295                                 M_AADD_IMM(REG_SP, -4 * 4, REG_SP);
3296
3297                                 /* push address of `rplpoint` struct */
3298
3299                                 disp = dseg_addaddress(cd, replacementpoint);
3300                                 M_ALD(REG_ITMP3, REG_PV, disp);
3301                                 M_AST_INTERN(REG_ITMP3, REG_SP, 0 * 4);
3302
3303                                 /* jump to replacement function */
3304
3305                                 disp = dseg_addaddress(cd, asm_replacement_out);
3306                                 M_ALD(REG_ITMP3, REG_PV, disp);
3307                                 M_MTCTR(REG_ITMP3);
3308                                 M_RTS;
3309                         }
3310                 }
3311 #endif
3312         }
3313
3314         codegen_finish(jd);
3315
3316         /* everything's ok */
3317
3318         return true;
3319 }
3320
3321
3322 /* createcompilerstub **********************************************************
3323
3324    Creates a stub routine which calls the compiler.
3325
3326 *******************************************************************************/
3327
3328 #define COMPILERSTUB_DATASIZE    3 * SIZEOF_VOID_P
3329 #define COMPILERSTUB_CODESIZE    4 * 4
3330
3331 #define COMPILERSTUB_SIZE        COMPILERSTUB_DATASIZE + COMPILERSTUB_CODESIZE
3332
3333
3334 u1 *createcompilerstub(methodinfo *m)
3335 {
3336         u1          *s;                     /* memory to hold the stub            */
3337         ptrint      *d;
3338         codeinfo    *code;
3339         codegendata *cd;
3340         s4           dumpsize;
3341
3342         s = CNEW(u1, COMPILERSTUB_SIZE);
3343
3344         /* set data pointer and code pointer */
3345
3346         d = (ptrint *) s;
3347         s = s + COMPILERSTUB_DATASIZE;
3348
3349         /* mark start of dump memory area */
3350
3351         dumpsize = dump_size();
3352
3353         cd = DNEW(codegendata);
3354         cd->mcodeptr = s;
3355
3356         /* Store the codeinfo pointer in the same place as in the
3357            methodheader for compiled methods. */
3358
3359         code = code_codeinfo_new(m);
3360
3361         d[0] = (ptrint) asm_call_jit_compiler;
3362         d[1] = (ptrint) m;
3363         d[2] = (ptrint) code;
3364
3365         M_ALD_INTERN(REG_ITMP1, REG_PV, -2 * SIZEOF_VOID_P);
3366         M_ALD_INTERN(REG_PV, REG_PV, -3 * SIZEOF_VOID_P);
3367         M_MTCTR(REG_PV);
3368         M_RTS;
3369
3370         md_cacheflush((u1 *) d, COMPILERSTUB_SIZE);
3371
3372 #if defined(ENABLE_STATISTICS)
3373         if (opt_stat)
3374                 count_cstub_len += COMPILERSTUB_SIZE;
3375 #endif
3376
3377         /* release dump area */
3378
3379         dump_release(dumpsize);
3380
3381         return s;
3382 }
3383
3384
3385 /* createnativestub ************************************************************
3386
3387    Creates a stub routine which calls a native method.
3388
3389 *******************************************************************************/
3390
3391 u1 *createnativestub(functionptr f, jitdata *jd, methoddesc *nmd)
3392 {
3393         methodinfo   *m;
3394         codeinfo     *code;
3395         codegendata  *cd;
3396         registerdata *rd;
3397         s4            stackframesize;       /* size of stackframe if needed       */
3398         methoddesc   *md;
3399         s4            nativeparams;
3400         s4            i, j;                 /* count variables                    */
3401         s4            t;
3402         s4            s1, s2, disp;
3403         s4            funcdisp;
3404
3405         /* get required compiler data */
3406
3407         m    = jd->m;
3408         code = jd->code;
3409         cd   = jd->cd;
3410         rd   = jd->rd;
3411
3412         /* set some variables */
3413
3414         md = m->parseddesc;
3415         nativeparams = (m->flags & ACC_STATIC) ? 2 : 1;
3416
3417         /* calculate stackframe size */
3418
3419         stackframesize =
3420                 sizeof(stackframeinfo) / SIZEOF_VOID_P +
3421                 sizeof(localref_table) / SIZEOF_VOID_P +
3422                 4 +                            /* 4 stackframeinfo arguments (darwin)*/
3423                 nmd->paramcount  +
3424                 nmd->memuse;
3425
3426         stackframesize = (stackframesize + 3) & ~3; /* keep stack 16-byte aligned */
3427
3428         /* create method header */
3429
3430         (void) dseg_addaddress(cd, code);                      /* CodeinfoPointer */
3431         (void) dseg_adds4(cd, stackframesize * 8);             /* FrameSize       */
3432         (void) dseg_adds4(cd, 0);                              /* IsSync          */
3433         (void) dseg_adds4(cd, 0);                              /* IsLeaf          */
3434         (void) dseg_adds4(cd, 0);                              /* IntSave         */
3435         (void) dseg_adds4(cd, 0);                              /* FltSave         */
3436         (void) dseg_addlinenumbertablesize(cd);
3437         (void) dseg_adds4(cd, 0);                              /* ExTableSize     */
3438
3439         /* generate code */
3440
3441         M_MFLR(REG_ZERO);
3442         M_AST_INTERN(REG_ZERO, REG_SP, LA_LR_OFFSET);
3443         M_STDU(REG_SP, REG_SP, -(stackframesize * 8));
3444
3445 #if !defined(NDEBUG)
3446         if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
3447                 emit_verbosecall_enter(jd);
3448         }
3449 #endif
3450         /* get function address (this must happen before the stackframeinfo) */
3451
3452         funcdisp = dseg_addaddress(cd, f);
3453
3454 #if !defined(WITH_STATIC_CLASSPATH)
3455         if (f == NULL) {
3456                 codegen_addpatchref(cd, PATCHER_resolve_native, m, funcdisp);
3457
3458                 if (opt_showdisassemble)
3459                         M_NOP;
3460         }
3461 #endif
3462
3463         /* save integer and float argument registers */
3464
3465         j = 0;
3466
3467         for (i = 0; i < md->paramcount; i++) {
3468                 t = md->paramtypes[i].type;
3469
3470                 if (IS_INT_LNG_TYPE(t)) {
3471                         if (!md->params[i].inmemory) {
3472                                 s1 = md->params[i].regoff;
3473                                 M_LST(rd->argintregs[s1], REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + j * 8);
3474                                 j++;
3475                         }
3476                 }
3477         }
3478
3479         for (i = 0; i < md->paramcount; i++) {
3480                 if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
3481                         if (!md->params[i].inmemory) {
3482                                 s1 = md->params[i].regoff;
3483                                 M_DST(rd->argfltregs[s1], REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + j * 8);
3484                                 j++;
3485                         }
3486                 }
3487         }
3488
3489         /* create native stack info */
3490
3491         M_AADD_IMM(REG_SP, stackframesize * 8, rd->argintregs[0]);
3492         M_MOV(REG_PV, rd->argintregs[1]);
3493         M_AADD_IMM(REG_SP, stackframesize * 8, rd->argintregs[2]);
3494         M_ALD(rd->argintregs[3], REG_SP, stackframesize * 8 + LA_LR_OFFSET);
3495         disp = dseg_addaddress(cd, codegen_start_native_call);
3496
3497         M_ALD(REG_ITMP1, REG_PV, disp);
3498         M_ALD(REG_ITMP1, REG_ITMP1, 0);         /* TOC */
3499         M_MTCTR(REG_ITMP1);
3500         M_JSR;
3501
3502         /* restore integer and float argument registers */
3503
3504         j = 0;
3505
3506         for (i = 0; i < md->paramcount; i++) {
3507                 t = md->paramtypes[i].type;
3508
3509                 if (IS_INT_LNG_TYPE(t)) {
3510                         if (!md->params[i].inmemory) {
3511                                 s1 = md->params[i].regoff;
3512                                 M_LLD(rd->argintregs[s1], REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + j * 8);
3513                                 j++;
3514                         }
3515                 }
3516         }
3517
3518         for (i = 0; i < md->paramcount; i++) {
3519                 if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
3520                         if (!md->params[i].inmemory) {
3521                                 s1 = md->params[i].regoff;
3522                                 M_DLD(rd->argfltregs[s1], REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + j * 8);
3523                                 j++;
3524                         }
3525                 }
3526         }
3527
3528         /* copy or spill arguments to new locations */
3529
3530         for (i = md->paramcount - 1, j = i + nativeparams; i >= 0; i--, j--) {
3531                 t = md->paramtypes[i].type;
3532
3533                 if (IS_INT_LNG_TYPE(t)) {
3534                         if (!md->params[i].inmemory) {
3535                                 s1 = rd->argintregs[md->params[i].regoff];
3536
3537                                 if (!nmd->params[j].inmemory) {
3538                                         s2 = rd->argintregs[nmd->params[j].regoff];
3539                                         M_INTMOVE(s1, s2);
3540                                 } else {
3541                                         s2 = nmd->params[j].regoff;
3542                                         M_LST(s1, REG_SP, s2 * 8);
3543                                 }
3544
3545                         } else {
3546                                 s1 = md->params[i].regoff + stackframesize;
3547                                 s2 = nmd->params[j].regoff;
3548
3549                                 M_LLD(REG_ITMP1, REG_SP, s1 * 8);
3550                                 M_LST(REG_ITMP1, REG_SP, s2 * 8);
3551                         }
3552
3553                 } else {
3554                         /* We only copy spilled float arguments, as the float
3555                            argument registers keep unchanged. */
3556
3557                         if (md->params[i].inmemory) {
3558                                 s1 = md->params[i].regoff + stackframesize;
3559                                 s2 = nmd->params[j].regoff;
3560
3561                                 if (IS_2_WORD_TYPE(t)) {
3562                                         M_DLD(REG_FTMP1, REG_SP, s1 * 8);
3563                                         M_DST(REG_FTMP1, REG_SP, s2 * 8);
3564
3565                                 } else {
3566                                         M_FLD(REG_FTMP1, REG_SP, s1 * 8);
3567                                         M_FST(REG_FTMP1, REG_SP, s2 * 8);
3568                                 }
3569                         }
3570                 }
3571         }
3572
3573         /* put class into second argument register */
3574
3575         if (m->flags & ACC_STATIC) {
3576                 disp = dseg_addaddress(cd, m->class);
3577                 M_ALD(rd->argintregs[1], REG_PV, disp);
3578         }
3579
3580         /* put env into first argument register */
3581
3582         disp = dseg_addaddress(cd, _Jv_env);
3583         M_ALD(rd->argintregs[0], REG_PV, disp);
3584
3585         /* generate the actual native call */
3586         /* native functions have a different TOC for sure */
3587
3588         M_AST(REG_TOC, REG_SP, 40);     /* save old TOC */
3589         M_ALD(REG_ITMP3, REG_PV, funcdisp);
3590         M_ALD(REG_TOC, REG_ITMP3, 8);   /* load TOC from func. descriptor */
3591         M_ALD(REG_ITMP3, REG_ITMP3, 0);
3592         M_MTCTR(REG_ITMP3);
3593         M_JSR;
3594         M_ALD(REG_TOC, REG_SP, 40);     /* restore TOC */
3595
3596         M_NOP;
3597         M_NOP;
3598         M_NOP;
3599
3600         /* save return value */
3601
3602         if (md->returntype.type != TYPE_VOID) {
3603                 if (IS_INT_LNG_TYPE(md->returntype.type)) {
3604                         M_LST(REG_RESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
3605                 }
3606                 else {
3607                         if (IS_2_WORD_TYPE(md->returntype.type))
3608                                 M_DST(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
3609                         else
3610                                 M_FST(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);  /* FIXME, needed ?*/
3611                 }
3612         }
3613
3614         /* print call trace */
3615 #if ! defined(NDEBGUU)
3616         if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
3617                 emit_verbosecall_exit(jd);
3618         }
3619 #endif
3620         /* remove native stackframe info */
3621
3622         M_NOP;
3623         M_NOP;
3624         M_NOP;
3625
3626         M_AADD_IMM(REG_SP, stackframesize * 8, rd->argintregs[0]);
3627         disp = dseg_addaddress(cd, codegen_finish_native_call);
3628         M_ALD(REG_ITMP1, REG_PV, disp);
3629         M_ALD(REG_ITMP1, REG_ITMP1, 0); /* XXX what about TOC? */
3630         M_MTCTR(REG_ITMP1);
3631         M_JSR;
3632         M_MOV(REG_RESULT, REG_ITMP1_XPTR);
3633
3634         /* restore return value */
3635
3636         if (md->returntype.type != TYPE_VOID) {
3637                 if (IS_INT_LNG_TYPE(md->returntype.type)) {
3638                         M_LLD(REG_RESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
3639                 }
3640                 else {
3641                         if (IS_2_WORD_TYPE(md->returntype.type))
3642                                 M_DLD(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
3643                         else
3644                                 M_FLD(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
3645                 }
3646         }
3647
3648         M_ALD(REG_ITMP2_XPC, REG_SP, stackframesize * 8 + LA_LR_OFFSET);
3649         M_MTLR(REG_ITMP2_XPC);
3650         M_LDA(REG_SP, REG_SP, stackframesize * 8); /* remove stackframe           */
3651
3652         /* check for exception */
3653
3654         M_TST(REG_ITMP1_XPTR);
3655         M_BNE(1);                           /* if no exception then return        */
3656
3657         M_RET;
3658
3659         /* handle exception */
3660
3661         M_LADD_IMM(REG_ITMP2_XPC, -4, REG_ITMP2_XPC);  /* exception address       */
3662
3663         disp = dseg_addaddress(cd, asm_handle_nat_exception);
3664         M_ALD(REG_ITMP3, REG_PV, disp);
3665         M_MTCTR(REG_ITMP3);
3666         M_RTS;
3667
3668         /* generate patcher stub call code */
3669
3670         {
3671                 patchref *pref;
3672                 u4        mcode;
3673                 u1       *savedmcodeptr;
3674                 u1       *tmpmcodeptr;
3675
3676                 for (pref = cd->patchrefs; pref != NULL; pref = pref->next) {
3677                         /* Get machine code which is patched back in later. The
3678                            call is 1 instruction word long. */
3679
3680                         tmpmcodeptr = cd->mcodebase + pref->branchpos;
3681
3682                         mcode = *((u4 *) tmpmcodeptr);
3683
3684                         /* Patch in the call to call the following code (done at
3685                            compile time). */
3686
3687                         savedmcodeptr = cd->mcodeptr;   /* save current mcodeptr          */
3688                         cd->mcodeptr  = tmpmcodeptr;    /* set mcodeptr to patch position */
3689
3690                         disp = ((u4 *) savedmcodeptr) - (((u4 *) tmpmcodeptr) + 1);
3691                         M_BL(disp);
3692
3693                         cd->mcodeptr = savedmcodeptr;   /* restore the current mcodeptr   */
3694
3695                         /* create stack frame - keep stack 16-byte aligned */
3696
3697                         M_AADD_IMM(REG_SP, -8 * 8, REG_SP);
3698
3699                         /* move return address onto stack */
3700
3701                         M_MFLR(REG_ZERO);
3702                         M_AST(REG_ZERO, REG_SP, 5 * 8);
3703
3704                         /* move pointer to java_objectheader onto stack */
3705
3706 #if defined(ENABLE_THREADS)
3707                         /* order reversed because of data segment layout */
3708
3709                         (void) dseg_addaddress(cd, NULL);                         /* flcword    */
3710                         (void) dseg_addaddress(cd, lock_get_initial_lock_word()); /* monitorPtr */
3711                         disp = dseg_addaddress(cd, NULL);                         /* vftbl      */
3712
3713                         M_LDA(REG_ITMP3, REG_PV, disp);
3714                         M_AST(REG_ITMP3, REG_SP, 4 * 8);
3715 #else
3716                         /* do nothing */
3717 #endif
3718
3719                         /* move machine code onto stack */
3720
3721                         disp = dseg_adds4(cd, mcode);
3722                         M_ILD(REG_ITMP3, REG_PV, disp);
3723                         M_IST(REG_ITMP3, REG_SP, 3 * 8);
3724
3725                         /* move class/method/field reference onto stack */
3726
3727                         disp = dseg_addaddress(cd, pref->ref);
3728                         M_ALD(REG_ITMP3, REG_PV, disp);
3729                         M_AST(REG_ITMP3, REG_SP, 2 * 8);
3730
3731                         /* move data segment displacement onto stack */
3732
3733                         disp = dseg_adds4(cd, pref->disp);
3734                         M_ILD(REG_ITMP3, REG_PV, disp);
3735                         M_IST(REG_ITMP3, REG_SP, 1 * 8);
3736
3737                         /* move patcher function pointer onto stack */
3738
3739                         disp = dseg_addaddress(cd, pref->patcher);
3740                         M_ALD(REG_ITMP3, REG_PV, disp);
3741                         M_AST(REG_ITMP3, REG_SP, 0 * 8);
3742
3743                         disp = dseg_addaddress(cd, asm_patcher_wrapper);
3744                         M_ALD(REG_ITMP3, REG_PV, disp);
3745                         M_MTCTR(REG_ITMP3);
3746                         M_RTS;
3747                 }
3748         }
3749
3750         codegen_finish(jd);
3751
3752         return code->entrypoint;
3753 }
3754
3755
3756
3757
3758 /*
3759  * These are local overrides for various environment variables in Emacs.
3760  * Please do not remove this and leave it at the end of the file, where
3761  * Emacs will automagically detect them.
3762  * ---------------------------------------------------------------------
3763  * Local variables:
3764  * mode: c
3765  * indent-tabs-mode: t
3766  * c-basic-offset: 4
3767  * tab-width: 4
3768  * End:
3769  * vim:noexpandtab:sw=4:ts=4:
3770  */