src/vm/jit/powerpc64/codegen.c

   1 /* src/vm/jit/powerpc64/codegen.c - machine code generator for 64-bit PowerPC
   2
   3    Copyright (C) 1996-2005, 2006, 2007 R. Grafl, A. Krall, C. Kruegel,
   4    C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
   5    E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
   6    J. Wenninger, Institut f. Computersprachen - TU Wien
   7
   8    This file is part of CACAO.
   9
  10    This program is free software; you can redistribute it and/or
  11    modify it under the terms of the GNU General Public License as
  12    published by the Free Software Foundation; either version 2, or (at
  13    your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful, but
  16    WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18    General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program; if not, write to the Free Software
  22    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  23    02110-1301, USA.
  24
  25 */
  26
  27
  28 #include "config.h"
  29
  30 #include <assert.h>
  31 #include <stdint.h>
  32 #include <stdio.h>
  33 #include <signal.h>
  34
  35 #include "vm/types.h"
  36
  37 #include "md-abi.h"
  38
  39 #include "vm/jit/powerpc64/arch.h"
  40 #include "vm/jit/powerpc64/codegen.h"
  41
  42 #include "mm/memory.h"
  43
  44 #include "native/localref.h"
  45 #include "native/native.h"
  46
  47 #include "threads/lock-common.h"
  48
  49 #include "vm/builtin.h"
  50 #include "vm/exceptions.h"
  51 #include "vm/global.h"
  52 #include "vm/stringlocal.h"
  53 #include "vm/vm.h"
  54
  55 #include "vm/jit/abi.h"
  56 #include "vm/jit/abi-asm.h"
  57 #include "vm/jit/md.h"
  58 #include "vm/jit/asmpart.h"
  59 #include "vm/jit/codegen-common.h"
  60 #include "vm/jit/dseg.h"
  61 #include "vm/jit/emit-common.h"
  62 #include "vm/jit/jit.h"
  63 #include "vm/jit/parse.h"
  64 #include "vm/jit/patcher-common.h"
  65 #include "vm/jit/reg.h"
  66 #include "vm/jit/replace.h"
  67 #include "vm/jit/stacktrace.h"
  68
  69 #include "vmcore/loader.h"
  70 #include "vmcore/options.h"
  71
  72 #if defined(ENABLE_LSRA)
  73 # include "vm/jit/allocator/lsra.h"
  74 #endif
  75
  76
  77 /* codegen_emit ****************************************************************
  78
  79    Generates machine code.
  80
  81 *******************************************************************************/
  82
  83 bool codegen_emit(jitdata *jd)
  84 {
  85         methodinfo         *m;
  86         codeinfo           *code;
  87         codegendata        *cd;
  88         registerdata       *rd;
  89         s4                  len, s1, s2, s3, d, disp;
  90         ptrint              a;
  91         varinfo            *var;
  92         basicblock         *bptr;
  93         instruction        *iptr;
  94         exception_entry    *ex;
  95         u2                  currentline;
  96         methodinfo         *lm;             /* local methodinfo for ICMD_INVOKE*  */
  97         unresolved_method  *um;
  98         builtintable_entry *bte;
  99         methoddesc         *md;
 100         s4                  fieldtype;
 101         s4                  varindex;
 102         unresolved_field   *uf;
 103         fieldinfo          *fi;
 104
 105         /* get required compiler data */
 106
 107         m    = jd->m;
 108         code = jd->code;
 109         cd   = jd->cd;
 110         rd   = jd->rd;
 111
 112         /* prevent compiler warnings */
 113
 114         d   = 0;
 115         lm  = NULL;
 116         um  = NULL;
 117         bte = NULL;
 118         uf  = NULL;
 119
 120         {
 121         s4 i, p, t, l;
 122         s4 savedregs_num;
 123
 124         savedregs_num = 0;
 125
 126         /* space to save used callee saved registers */
 127
 128         savedregs_num += (INT_SAV_CNT - rd->savintreguse);
 129         savedregs_num += (FLT_SAV_CNT - rd->savfltreguse);
 130
 131         cd->stackframesize = rd->memuse + savedregs_num;
 132
 133 #if defined(ENABLE_THREADS)
 134         /* space to save argument of monitor_enter and Return Values to survive */
 135     /* monitor_exit. The stack position for the argument can not be shared  */
 136         /* with place to save the return register on PPC64, since both values     */
 137         /* reside in R3 */
 138         if (checksync && code_is_synchronized(code)) {
 139                 /* reserve 2 slots for long/double return values for monitorexit */
 140                 cd->stackframesize += 2;
 141         }
 142
 143 #endif
 144
 145         /* create method header */
 146
 147         /* align stack to 16-bytes */
 148
 149 /* FIXME */
 150 /*      if (!m->isleafmethod || opt_verbosecall) */
 151 /*              stackframesize = (stackframesize + 3) & ~3;
 152 */
 153 /*      else if (m->isleafmethod && (stackframesize == LA_WORD_SIZE)) */
 154 /*              stackframesize = 0; */
 155
 156         (void) dseg_add_unique_address(cd, code);                      /* CodeinfoPointer */
 157         (void) dseg_add_unique_s4(cd, cd->stackframesize * 8);             /* FrameSize       */
 158
 159         /* IsSync contains the offset relative to the stack pointer for the
 160            argument of monitor_exit used in the exception handler. Since the
 161            offset could be zero and give a wrong meaning of the flag it is
 162            offset by one.
 163         */
 164         /* XXX Remove this "offset by one". */
 165
 166         code->synchronizedoffset = (rd->memuse + 1) * 8;
 167
 168         /* REMOVEME: We still need it for exception handling in assembler. */
 169
 170         if (code_is_leafmethod(code))
 171                 (void) dseg_add_unique_s4(cd, 1);
 172         else
 173                 (void) dseg_add_unique_s4(cd, 0);
 174
 175         (void) dseg_add_unique_s4(cd, INT_SAV_CNT - rd->savintreguse); /* IntSave         */
 176         (void) dseg_add_unique_s4(cd, FLT_SAV_CNT - rd->savfltreguse); /* FltSave         */
 177
 178         dseg_addlinenumbertablesize(cd);
 179
 180         (void) dseg_add_unique_s4(cd, jd->exceptiontablelength);       /* ExTableSize     */
 181
 182         /* create exception table */
 183
 184         for (ex = jd->exceptiontable; ex != NULL; ex = ex->down) {
 185                 dseg_add_target(cd, ex->start);
 186                 dseg_add_target(cd, ex->end);
 187                 dseg_add_target(cd, ex->handler);
 188                 (void) dseg_add_unique_address(cd, ex->catchtype.any);
 189         }
 190
 191         /* create stack frame (if necessary) */
 192
 193         if (!code_is_leafmethod(code)) {
 194                 M_MFLR(REG_ZERO);
 195                 M_AST(REG_ZERO, REG_SP, LA_LR_OFFSET);
 196         }
 197
 198         if (cd->stackframesize)
 199                 M_STDU(REG_SP, REG_SP, -cd->stackframesize * 8);
 200
 201         /* save return address and used callee saved registers */
 202
 203         p = cd->stackframesize;
 204         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
 205                 p--; M_LST(rd->savintregs[i], REG_SP, p * 8);
 206         }
 207         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
 208                 p --; M_DST(rd->savfltregs[i], REG_SP, p * 8);
 209         }
 210
 211         /* take arguments out of register or stack frame */
 212
 213         md = m->parseddesc;
 214
 215         for (p = 0, l = 0; p < md->paramcount; p++) {
 216                 t = md->paramtypes[p].type;
 217                 varindex = jd->local_map[l*5 + t];
 218                 l++;
 219                 if (IS_2_WORD_TYPE(t))    /* increment local counter for 2 word types */
 220                         l++;
 221                 if (varindex == UNUSED)
 222                         continue;
 223
 224                 var = VAR(varindex);
 225                 s1  = md->params[p].regoff;
 226
 227                 if (IS_INT_LNG_TYPE(t)) {
 228                         if (!md->params[p].inmemory) {
 229                                 if (!IS_INMEMORY(var->flags))
 230                                         M_INTMOVE(s1, var->vv.regoff);
 231                                 else
 232                                         M_LST(s1, REG_SP, var->vv.regoff);
 233                         }
 234                         else {
 235                                 if (!IS_INMEMORY(var->flags))
 236                                         M_LLD(var->vv.regoff, REG_SP, cd->stackframesize * 8 + s1);
 237                                 else
 238                                         var->vv.regoff = cd->stackframesize * 8 + s1;
 239                         }
 240                 }
 241                 else {
 242                         if (!md->params[p].inmemory) {
 243                                 if (!IS_INMEMORY(var->flags))
 244                                         M_FLTMOVE(s1, var->vv.regoff);
 245                                 else
 246                                         M_DST(s1, REG_SP, var->vv.regoff);
 247                         }
 248                         else {
 249                                 if (!(var->flags & INMEMORY)) {
 250                                         if (IS_2_WORD_TYPE(t))
 251                                                 M_DLD(var->vv.regoff, REG_SP, cd->stackframesize * 8 + s1);
 252                                         else
 253                                                 M_DLD(var->vv.regoff, REG_SP, cd->stackframesize * 8 + s1);
 254                                 }
 255                                 else
 256                                         var->vv.regoff = cd->stackframesize * 8 + s1;
 257                         }
 258                 }
 259         }
 260
 261         /* save monitorenter argument */
 262
 263 #if defined(ENABLE_THREADS)
 264
 265         if (checksync && code_is_synchronized(code)) {
 266
 267                 /* stackoffset for argument used for LOCK_monitor_exit */
 268                 s1 = rd->memuse;
 269
 270 #if !defined (NDEBUG)
 271                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 272                         M_AADD_IMM(REG_SP, -((LA_SIZE_IN_POINTERS + PA_SIZE_IN_POINTERS + ARG_CNT) * 8), REG_SP);
 273
 274                         for (p = 0; p < INT_ARG_CNT; p++)
 275                                 M_LST(abi_registers_integer_argument[p], REG_SP, LA_SIZE + PA_SIZE + p * 8);
 276
 277                         for (p = 0; p < FLT_ARG_CNT; p++)
 278                                 M_DST(abi_registers_float_argument[p], REG_SP, LA_SIZE + PA_SIZE + (INT_ARG_CNT + p) * 8);
 279
 280                         /* used for LOCK_monitor_exit, adopt size because we created another stackframe */
 281                         s1 += (LA_SIZE_IN_POINTERS + PA_SIZE_IN_POINTERS + ARG_CNT);
 282                 }
 283 #endif
 284
 285                 p = dseg_add_functionptr(cd, LOCK_monitor_enter);
 286                 M_ALD(REG_ITMP3, REG_PV, p);
 287                 M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
 288                 M_MTCTR(REG_ITMP3);
 289
 290                 /* get or test the lock object */
 291
 292                 if (m->flags & ACC_STATIC) {
 293                         p = dseg_add_address(cd, &m->class->object.header);
 294                         M_ALD(REG_A0, REG_PV, p);
 295                 }
 296                 else {
 297                         M_TST(REG_A0);
 298                         M_BNE(1);
 299                         M_ALD_INTERN(REG_ZERO, REG_ZERO, EXCEPTION_HARDWARE_NULLPOINTER);
 300                 }
 301
 302                 M_AST(REG_A0, REG_SP, s1 * 8);                      /* rd->memuse * 8 */
 303                 M_JSR;
 304
 305 #if !defined(NDEBUG)
 306                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 307                         for (p = 0; p < INT_ARG_CNT; p++)
 308                                 M_LLD(abi_registers_integer_argument[p], REG_SP, LA_SIZE + PA_SIZE + p * 8);
 309
 310                         for (p = 0; p < FLT_ARG_CNT; p++)
 311                                 M_DLD(abi_registers_float_argument[p], REG_SP, LA_SIZE + PA_SIZE + (INT_ARG_CNT + p) * 8);
 312
 313                         M_AADD_IMM(REG_SP, (LA_SIZE_IN_POINTERS + PA_SIZE_IN_POINTERS + ARG_CNT) * 8, REG_SP);
 314                 }
 315 #endif
 316         }
 317 #endif
 318
 319         /* call trace function */
 320 #if !defined (NDEBUG)
 321         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
 322                 emit_verbosecall_enter(jd);
 323 #endif
 324
 325         }
 326
 327         /* end of header generation */
 328
 329         /* create replacement points */
 330
 331         REPLACEMENT_POINTS_INIT(cd, jd);
 332
 333         /* walk through all basic blocks */
 334
 335         for (bptr = jd->basicblocks; bptr != NULL; bptr = bptr->next) {
 336
 337                 bptr->mpc = (s4) (cd->mcodeptr - cd->mcodebase);
 338
 339                 if (bptr->flags >= BBREACHED) {
 340
 341                 /* branch resolving */
 342                 codegen_resolve_branchrefs(cd, bptr);
 343
 344                 /* handle replacement points */
 345
 346                 REPLACEMENT_POINT_BLOCK_START(cd, bptr);
 347
 348                 /* copy interface registers to their destination */
 349
 350                 len = bptr->indepth;
 351                 MCODECHECK(128+len);
 352
 353 #if defined(ENABLE_LSRA)
 354                 if (opt_lsra) {
 355                         while (len) {
 356                                 len--;
 357                                 var = VAR(bptr->invars[len]);
 358                                 if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 359                                         /* d = reg_of_var(m, var, REG_ITMP1); */
 360                                         if (!(var->flags & INMEMORY))
 361                                                 d = var->vv.regoff;
 362                                         else
 363                                                 d = REG_ITMP1;
 364                                         M_INTMOVE(REG_ITMP1, d);
 365                                         emit_store(jd, NULL, var, d);
 366                                 }
 367                         }
 368                 } else {
 369 #endif
 370                 while (len) {
 371                         len--;
 372                         var = VAR(bptr->invars[len]);
 373                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 374                                 d = codegen_reg_of_var(0, var, REG_ITMP1);
 375                                 M_INTMOVE(REG_ITMP1, d);
 376                                 emit_store(jd, NULL, var, d);
 377                         }
 378                         else {
 379                                 assert((var->flags & INOUT));
 380                         }
 381                 }
 382
 383 #if defined(ENABLE_LSRA)
 384                 }
 385 #endif
 386                 /* walk through all instructions */
 387
 388                 len = bptr->icount;
 389                 currentline = 0;
 390
 391                 for (iptr = bptr->iinstr; len > 0; len--, iptr++) {
 392                         if (iptr->line != currentline) {
 393                                 dseg_addlinenumber(cd, iptr->line);
 394                                 currentline = iptr->line;
 395                         }
 396
 397                         MCODECHECK(128);   /* an instruction usually needs < 64 words      */
 398
 399                 switch (iptr->opc) {
 400                 case ICMD_NOP:        /* ...  ==> ...                                 */
 401                 case ICMD_POP:        /* ..., value  ==> ...                          */
 402                 case ICMD_POP2:       /* ..., value, value  ==> ...                   */
 403                         break;
 404
 405                 case ICMD_INLINE_START:
 406
 407                         REPLACEMENT_POINT_INLINE_START(cd, iptr);
 408                         break;
 409
 410                 case ICMD_INLINE_BODY:
 411
 412                         REPLACEMENT_POINT_INLINE_BODY(cd, iptr);
 413                         dseg_addlinenumber_inline_start(cd, iptr);
 414                         dseg_addlinenumber(cd, iptr->line);
 415                         break;
 416
 417                 case ICMD_INLINE_END:
 418
 419                         dseg_addlinenumber_inline_end(cd, iptr);
 420                         dseg_addlinenumber(cd, iptr->line);
 421                         break;
 422
 423                 case ICMD_CHECKNULL:  /* ..., objectref  ==> ..., objectref           */
 424
 425                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 426                         M_TST(s1);
 427                         M_BEQ(0);
 428                         emit_nullpointer_check(cd, iptr, s1);
 429                         break;
 430
 431                 /* constant operations ************************************************/
 432
 433                 case ICMD_ICONST:     /* ...  ==> ..., constant                       */
 434
 435                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 436                         ICONST(d, iptr->sx.val.i);
 437                         emit_store_dst(jd, iptr, d);
 438                         break;
 439
 440                 case ICMD_LCONST:     /* ...  ==> ..., constant                       */
 441
 442                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 443                         LCONST(d, iptr->sx.val.l);
 444                         emit_store_dst(jd, iptr, d);
 445                         break;
 446
 447                 case ICMD_FCONST:     /* ...  ==> ..., constant                       */
 448
 449                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 450                         a = dseg_add_float(cd, iptr->sx.val.f);
 451                         M_FLD(d, REG_PV, a);
 452                         emit_store_dst(jd, iptr, d);
 453                         break;
 454
 455                 case ICMD_DCONST:     /* ...  ==> ..., constant                       */
 456
 457                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 458                         a = dseg_add_double(cd, iptr->sx.val.d);
 459                         M_DLD(d, REG_PV, a);
 460                         emit_store_dst(jd, iptr, d);
 461                         break;
 462
 463                 case ICMD_ACONST:     /* ...  ==> ..., constant                       */
 464
 465                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 466
 467                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
 468                                 disp = dseg_add_unique_address(cd, iptr->sx.val.c.ref);
 469                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
 470                                                                         iptr->sx.val.c.ref,
 471                                                                     disp);
 472                         } else  {
 473                                 disp = dseg_add_address(cd, iptr->sx.val.anyptr);
 474                         }
 475                         M_ALD(d, REG_PV, disp);
 476                         emit_store_dst(jd, iptr, d);
 477                         break;
 478
 479
 480                 /* load/store/copy/move operations ************************************/
 481
 482                 case ICMD_ILOAD:      /* ...  ==> ..., content of local variable      */
 483                 case ICMD_ALOAD:      /* s1.localindex = local variable               */
 484                 case ICMD_LLOAD:
 485                 case ICMD_FLOAD:
 486                 case ICMD_DLOAD:
 487                 case ICMD_ISTORE:     /* ..., value  ==> ...                          */
 488                 case ICMD_LSTORE:
 489                 case ICMD_FSTORE:
 490                 case ICMD_DSTORE:
 491                 case ICMD_COPY:
 492                 case ICMD_MOVE:
 493
 494                         emit_copy(jd, iptr);
 495                         break;
 496
 497                 case ICMD_ASTORE:
 498                         if (!(iptr->flags.bits & INS_FLAG_RETADDR))
 499                                 emit_copy(jd, iptr);
 500                         break;
 501
 502
 503                 /* integer operations *************************************************/
 504
 505                 case ICMD_INEG:       /* ..., value  ==> ..., - value                 */
 506                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 507                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 508                         M_NEG(s1, d);
 509                         M_EXTSW(d, d);
 510                         emit_store_dst(jd, iptr, d);
 511                         break;
 512
 513                 case ICMD_LNEG:
 514                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 515                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 516                         M_NEG(s1, d);
 517                         emit_store_dst(jd, iptr, d);
 518                         break;
 519
 520
 521                 case ICMD_I2L:        /* ..., value  ==> ..., value                   */
 522
 523                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 524                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 525                         M_INTMOVE(s1, d);
 526                         emit_store_dst(jd, iptr, d);
 527                         break;
 528
 529                 case ICMD_L2I:        /* ..., value  ==> ..., value                   */
 530
 531                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 532                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 533                         M_ISEXT(s1, d);
 534                         emit_store_dst(jd, iptr, d);
 535                         break;
 536
 537                 case ICMD_INT2BYTE:   /* ..., value  ==> ..., value                   */
 538
 539                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 540                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 541                         M_BSEXT(s1, d);
 542                         emit_store_dst(jd, iptr, d);
 543                         break;
 544
 545                 case ICMD_INT2CHAR:   /* ..., value  ==> ..., value                   */
 546
 547                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 548                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 549                         M_CZEXT(s1, d);
 550                         emit_store_dst(jd, iptr, d);
 551                         break;
 552
 553                 case ICMD_INT2SHORT:  /* ..., value  ==> ..., value                   */
 554
 555                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 556                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 557                         M_SSEXT(s1, d);
 558                         emit_store_dst(jd, iptr, d);
 559                         break;
 560
 561
 562                 case ICMD_IADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 563
 564                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 565                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 566                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 567                         M_IADD(s1, s2, d);
 568                         M_EXTSW(d,d);
 569                         emit_store_dst(jd, iptr, d);
 570                         break;
 571
 572                 case ICMD_IINC:
 573                 case ICMD_IADDCONST:
 574
 575                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 576                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 577                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767)) {
 578                                 M_IADD_IMM(s1, iptr->sx.val.i, d);
 579                         } else {
 580                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 581                                 M_IADD(s1, REG_ITMP2, d);
 582                         }
 583                         M_EXTSW(d,d);
 584                         emit_store_dst(jd, iptr, d);
 585                         break;
 586
 587                 case ICMD_LADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 588
 589                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 590                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 591                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 592                         M_LADD(s1, s2, d);
 593                         emit_store_dst(jd, iptr, d);
 594                         break;
 595
 596                 case ICMD_LADDCONST:  /* ..., value  ==> ..., value + constant        */
 597                                       /* sx.val.l = constant                          */
 598
 599                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 600                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 601                         /* XXX check me */
 602                         if ((iptr->sx.val.l >= -32768) && (iptr->sx.val.l <= 32767)) {
 603                                 M_LADD_IMM(s1, iptr->sx.val.l, d);
 604                         } else {
 605                                 LCONST(REG_ITMP2, iptr->sx.val.l);
 606                                 M_LADD(s1, REG_ITMP2, d);
 607                         }
 608                         emit_store_dst(jd, iptr, d);
 609                         break;
 610
 611                 case ICMD_ISUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 612
 613                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 614                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 615                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 616                         M_SUB(s1, s2, d);
 617                         M_EXTSW(d, d);
 618                         emit_store_dst(jd, iptr, d);
 619                         break;
 620
 621                 case ICMD_ISUBCONST:  /* ..., value  ==> ..., value + constant        */
 622                                       /* sx.val.i = constant                          */
 623
 624                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 625                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 626                         if ((iptr->sx.val.i >= -32767) && (iptr->sx.val.i <= 32768)) {
 627                                 M_IADD_IMM(s1, -iptr->sx.val.i, d);
 628                         } else {
 629                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 630                                 M_SUB(s1, REG_ITMP2, d);
 631                         }
 632                         M_EXTSW(d, d);
 633                         emit_store_dst(jd, iptr, d);
 634                         break;
 635
 636                 case ICMD_LSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 637
 638                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 639                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 640                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 641                         M_SUB(s1, s2, d);
 642                         emit_store_dst(jd, iptr, d);
 643                         break;
 644
 645                 case ICMD_LSUBCONST:  /* ..., value  ==> ..., value - constant        */
 646                                       /* sx.val.l = constant                          */
 647
 648                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 649                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 650                         /* XXX check me */
 651                         if ((iptr->sx.val.l >= -32767) && (iptr->sx.val.l <= 32767)) {
 652                                 M_LADD_IMM(s1, -iptr->sx.val.l, d);
 653                         } else {
 654                                 LCONST(REG_ITMP2, iptr->sx.val.l);
 655                                 M_SUB(s1, REG_ITMP2, d);
 656                         }
 657                         emit_store_dst(jd, iptr, d);
 658                         break;
 659
 660                 case ICMD_IDIV:
 661                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 662                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 663                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 664                         emit_arithmetic_check(cd, iptr, s2);
 665
 666                         M_DIV(s1, s2, d);
 667                         M_EXTSW(d, d);
 668                         emit_store_dst(jd, iptr, d);
 669                         break;
 670
 671                 case ICMD_LDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 672
 673                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 674                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 675                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 676                         emit_arithmetic_check(cd, iptr, s2);
 677
 678                         M_DIV(s1, s2, d);
 679                         /* we need to test if divident was 0x8000000000000, bit OV is set in XER in this case */
 680                         /* we only need to check this if we did a LDIV, not for IDIV */
 681                         M_MFXER(REG_ITMP2);
 682                         M_ANDIS(REG_ITMP2, 0x4000, REG_ITMP2);  /* test OV */
 683                         M_BLE(1);
 684                         M_MOV(s1, d);                           /* java specs says result == dividend */
 685                         emit_store_dst(jd, iptr, d);
 686                         break;
 687
 688                 case ICMD_IREM:
 689                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 690                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 691                         emit_arithmetic_check(cd, iptr, s2);
 692
 693                         M_DIV(s1, s2,  REG_ITMP3);
 694                         M_MUL(REG_ITMP3, s2, REG_ITMP2);
 695                         M_SUB(s1, REG_ITMP2,  REG_ITMP3);
 696                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 697
 698                         M_MOV(REG_ITMP3, d);
 699                         emit_store_dst(jd, iptr, d);
 700                         break;
 701
 702
 703                 case ICMD_LREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 704                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 705                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 706                         emit_arithmetic_check(cd, iptr, s2);
 707
 708                         M_DIV(s1, s2,  REG_ITMP3);
 709                         /* we need to test if divident was 0x8000000000000, bit OV is set in XER in this case */
 710                         /* we only need to check this if we did a LDIV, not for IDIV */
 711                         M_MFXER(REG_ITMP2);
 712                         M_ANDIS(REG_ITMP2, 0x4000, REG_ITMP2);  /* test OV */
 713                         M_BLE(2);
 714                         LCONST(REG_ITMP3, 0);                   /* result == 0 in this case */
 715                         M_BR(2);
 716                         M_MUL(REG_ITMP3, s2, REG_ITMP2);
 717                         M_SUB(s1, REG_ITMP2,  REG_ITMP3);
 718                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 719
 720                         M_MOV(REG_ITMP3, d);
 721                         emit_store_dst(jd, iptr, d);
 722                         break;
 723
 724
 725                 case ICMD_IMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 726                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 727                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 728                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 729                         M_MUL(s1, s2, d);
 730                         M_EXTSW(d, d);
 731                         emit_store_dst(jd, iptr, d);
 732                         break;
 733
 734                 case ICMD_LMUL:
 735                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 736                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 737                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 738                         M_MUL(s1, s2, d);
 739                         emit_store_dst(jd, iptr, d);
 740                         break;
 741
 742                 case ICMD_IMULCONST:  /* ..., value  ==> ..., value * constant        */
 743                                       /* sx.val.i = constant                          */
 744
 745                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 746                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 747                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767))
 748                                 M_MUL_IMM(s1, iptr->sx.val.i, d);
 749                         else {
 750                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 751                                 M_MUL(s1, REG_ITMP3, d);
 752                         }
 753                         M_EXTSW(d, d);
 754                         emit_store_dst(jd, iptr, d);
 755                         break;
 756                 case ICMD_LMULCONST:
 757                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 758                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 759                         if ((iptr->sx.val.l >= -32767) && (iptr->sx.val.l <= 32767))
 760                                 M_MUL_IMM(s1, iptr->sx.val.l, d);
 761                         else {
 762                                 LCONST(REG_ITMP3, iptr->sx.val.l);
 763                                 M_MUL(s1, REG_ITMP3, d);
 764                         }
 765                         emit_store_dst(jd, iptr, d);
 766                         break;
 767
 768                 case ICMD_IDIVPOW2:   /* ..., value  ==> ..., value << constant       */
 769
 770                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 771                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 772                         M_SRA_IMM(s1, iptr->sx.val.i, d);
 773                         M_ADDZE(d, d);
 774                         M_EXTSW(d, d);
 775                         emit_store_dst(jd, iptr, d);
 776                         break;
 777
 778                 case ICMD_ISHL:       /* ..., val1, val2  ==> ..., val1 << val2       */
 779
 780                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 781                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 782                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 783                         M_AND_IMM(s2, 0x1f, REG_ITMP3);
 784                         M_SLL(s1, REG_ITMP3, d);
 785                         M_EXTSW(d, d);
 786                         emit_store_dst(jd, iptr, d);
 787                         break;
 788
 789                 case ICMD_ISHLCONST:  /* ..., value  ==> ..., value << constant       */
 790                                       /* sx.val.i = constant                             */
 791
 792                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 793                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 794                         M_SLL_IMM(s1, iptr->sx.val.i & 0x1f, d);
 795                         M_EXTSW(d,d);
 796                         emit_store_dst(jd, iptr, d);
 797                         break;
 798
 799                 case ICMD_ISHR:       /* ..., val1, val2  ==> ..., val1 >> val2       */
 800
 801                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 802                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 803                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 804                         M_AND_IMM(s2, 0x1f, REG_ITMP3);
 805                         M_SRA(s1, REG_ITMP3, d);
 806                         emit_store_dst(jd, iptr, d);
 807                         break;
 808
 809                 case ICMD_ISHRCONST:  /* ..., value  ==> ..., value >> constant       */
 810                                       /* sx.val.i = constant                             */
 811
 812                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 813                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 814                         M_SRA_IMM(s1, iptr->sx.val.i & 0x1f, d);
 815                         emit_store_dst(jd, iptr, d);
 816                         break;
 817
 818                 case ICMD_IUSHR:      /* ..., val1, val2  ==> ..., val1 >>> val2      */
 819
 820                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 821                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 822                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 823                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 824                         M_MOV(s1, REG_ITMP1);
 825                         M_CLR_HIGH(REG_ITMP1);
 826                         M_SRL(REG_ITMP1, REG_ITMP2, d);
 827                         M_EXTSW(d,d);   /* for the case it was shift 0 bits */
 828                         emit_store_dst(jd, iptr, d);
 829                         break;
 830
 831                 case ICMD_IUSHRCONST: /* ..., value  ==> ..., value >>> constant      */
 832                                       /* sx.val.i = constant                             */
 833
 834                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 835                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 836                         if (iptr->sx.val.i & 0x1f) {
 837                                 M_MOV(s1, REG_ITMP1);
 838                                 M_CLR_HIGH(REG_ITMP1);
 839                                 M_SRA_IMM(REG_ITMP1, iptr->sx.val.i & 0x1f, d);
 840                         } else {
 841                                 M_INTMOVE(s1, d);
 842                         }
 843                         emit_store_dst(jd, iptr, d);
 844                         break;
 845
 846                 case ICMD_LSHLCONST:
 847                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 848                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 849                         M_SLL_IMM(s1, iptr->sx.val.i & 0x3f, d);
 850                         emit_store_dst(jd, iptr, d);
 851                         break;
 852                 case ICMD_LSHL:
 853                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 854                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 855                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 856                         M_AND_IMM(s2, 0x3f, REG_ITMP2);
 857                         M_SLL(s1, REG_ITMP2, d);
 858                         emit_store_dst(jd, iptr, d);
 859                         break;
 860                 case ICMD_LSHRCONST:
 861                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 862                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 863                         M_SRA_IMM(s1, iptr->sx.val.i & 0x3f, d);
 864                         emit_store_dst(jd, iptr, d);
 865                         break;
 866                 case ICMD_LSHR:
 867                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 868                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 869                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 870                         M_AND_IMM(s2, 0x3f, REG_ITMP2);
 871                         M_SRA(s1, REG_ITMP2, d);
 872                         emit_store_dst(jd, iptr, d);
 873                         break;
 874                 case ICMD_LUSHRCONST:
 875                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 876                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 877                         M_SRL_IMM(s1, iptr->sx.val.i & 0x3f, d);
 878                         emit_store_dst(jd, iptr, d);
 879                         break;
 880                 case ICMD_LUSHR:
 881                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 882                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 883                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 884                         M_AND_IMM(s2, 0x3f, REG_ITMP2);
 885                         M_SRL(s1, REG_ITMP2, d);
 886                         emit_store_dst(jd, iptr, d);
 887                         break;
 888
 889                 case ICMD_IAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 890                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 891                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 892                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 893                         M_AND(s1, s2, d);
 894 /*                      M_EXTSW(d, d);*/
 895                         emit_store_dst(jd, iptr, d);
 896                         break;
 897
 898                 case ICMD_LAND:
 899                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 900                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 901                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 902                         M_AND(s1, s2, d);
 903                         emit_store_dst(jd, iptr, d);
 904                         break;
 905
 906                 case ICMD_IANDCONST:  /* ..., value  ==> ..., value & constant        */
 907                                       /* sx.val.i = constant                          */
 908
 909                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 910                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 911                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535)) {
 912                                 M_AND_IMM(s1, iptr->sx.val.i, d);
 913                                 }
 914                         /*
 915                         else if (iptr->sx.val.i == 0xffffff) {
 916                                 M_RLWINM(s1, 0, 8, 31, d);
 917                                 }
 918                         */
 919                         else {
 920                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 921                                 M_AND(s1, REG_ITMP3, d);
 922                         }
 923                         emit_store_dst(jd, iptr, d);
 924                         break;
 925
 926                 case ICMD_LANDCONST:  /* ..., value  ==> ..., value & constant        */
 927                                       /* sx.val.l = constant                          */
 928
 929                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 930                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 931                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
 932                                 M_AND_IMM(s1, iptr->sx.val.l, d);
 933                         /*
 934                         else if (iptr->sx.val.l == 0xffffff) {
 935                                 M_RLWINM(s1, 0, 8, 31, d);
 936                                 }
 937                         */
 938                         else {
 939                                 LCONST(REG_ITMP3, iptr->sx.val.l);
 940                                 M_AND(s1, REG_ITMP3, d);
 941                         }
 942                         emit_store_dst(jd, iptr, d);
 943                         break;
 944
 945                 case ICMD_IREMPOW2:   /* ..., value  ==> ..., value % constant        */
 946                                       /* sx.val.i = constant                             */
 947                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 948                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 949 #if 0
 950                         /* fast division, result in REG_ITMP3) */
 951                         M_SRA_IMM(s1, iptr->sx.val.i, REG_ITMP3);
 952                         M_ADDZE(REG_ITMP3, REG_ITMP3);
 953
 954                         M_SUB(s1, REG_ITMP3, d);
 955                         M_EXTSW(d, d);
 956                         emit_store_dst(jd, iptr, d);
 957                         break;
 958 #else
 959
 960                         M_MOV(s1, REG_ITMP2);
 961                         M_CMPI(s1, 0);
 962                         M_BGE(1 + 3*(iptr->sx.val.i >= 32768));
 963                         if (iptr->sx.val.i >= 32768) {
 964                                 M_ADDIS(REG_ZERO, iptr->sx.val.i >> 16, REG_ITMP2);
 965                                 M_EXTSW(REG_ITMP2, REG_ITMP2);
 966                                 M_OR_IMM(REG_ITMP2, iptr->sx.val.i, REG_ITMP2);
 967                                 M_IADD(s1, REG_ITMP2, REG_ITMP2);
 968                         } else {
 969                                 M_IADD_IMM(s1, iptr->sx.val.i, REG_ITMP2);
 970                         }
 971                         {
 972                                 int b=0, m = iptr->sx.val.i;
 973                                 while (m >>= 1)
 974                                         ++b;
 975                                 M_RLWINM(REG_ITMP2, 0, 0, 30-b, REG_ITMP2);
 976                         }
 977                         M_SUB(s1, REG_ITMP2, d);
 978                         M_EXTSW(d, d);
 979                         emit_store_dst(jd, iptr, d);
 980                         break;
 981 #endif
 982
 983                 case ICMD_IOR:        /* ..., val1, val2  ==> ..., val1 | val2        */
 984                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 985                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 986                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 987                         M_OR(s1, s2, d);
 988 /*                      M_EXTSW(d,d);*/
 989                         emit_store_dst(jd, iptr, d);
 990                         break;
 991
 992                 case ICMD_LOR:
 993
 994                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 995                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 996                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 997                         M_OR(s1, s2, d);
 998                         emit_store_dst(jd, iptr, d);
 999                         break;
1000
1001                 case ICMD_IORCONST:   /* ..., value  ==> ..., value | constant        */
1002                                       /* sx.val.i = constant                          */
1003
1004                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1005                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1006                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
1007                                 M_OR_IMM(s1, iptr->sx.val.i, d);
1008                         else {
1009                                 ICONST(REG_ITMP3, iptr->sx.val.i);
1010                                 M_OR(s1, REG_ITMP3, d);
1011                         }
1012                         emit_store_dst(jd, iptr, d);
1013                         break;
1014
1015                 case ICMD_LORCONST:   /* ..., value  ==> ..., value | constant        */
1016                                       /* sx.val.l = constant                          */
1017
1018                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1019                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1020                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
1021                                 M_OR_IMM(s1, iptr->sx.val.l, d);
1022                         else {
1023                                 LCONST(REG_ITMP3, iptr->sx.val.l);
1024                                 M_OR(s1, REG_ITMP3, d);
1025                         }
1026                         emit_store_dst(jd, iptr, d);
1027                         break;
1028
1029
1030                 case ICMD_IXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
1031                 case ICMD_LXOR:
1032
1033                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1034                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1035                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1036                         M_XOR(s1, s2, d);
1037                         emit_store_dst(jd, iptr, d);
1038                         break;
1039
1040                 case ICMD_IXORCONST:  /* ..., value  ==> ..., value ^ constant        */
1041                                       /* sx.val.i = constant                          */
1042
1043                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1044                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1045                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
1046                                 M_XOR_IMM(s1, iptr->sx.val.i, d);
1047                         else {
1048                                 ICONST(REG_ITMP3, iptr->sx.val.i);
1049                                 M_XOR(s1, REG_ITMP3, d);
1050                         }
1051                         emit_store_dst(jd, iptr, d);
1052                         break;
1053
1054                 case ICMD_LXORCONST:  /* ..., value  ==> ..., value ^ constant        */
1055                                       /* sx.val.l = constant                          */
1056
1057                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1058                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1059                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
1060                                 M_XOR_IMM(s1, iptr->sx.val.l, d);
1061                         else {
1062                                 LCONST(REG_ITMP3, iptr->sx.val.l);
1063                                 M_XOR(s1, REG_ITMP3, d);
1064                         }
1065                         emit_store_dst(jd, iptr, d);
1066                         break;
1067
1068                 case ICMD_LCMP:       /* ..., val1, val2  ==> ..., val1 cmp val2      */
1069
1070                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1071                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1072                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
1073                         /* XXX implement me!!! */
1074                         vm_abort("codegen: implement ICMD_LCMP!");
1075                         emit_store_dst(jd, iptr, d);
1076                         break;
1077                         break;
1078
1079
1080                 /* floating operations ************************************************/
1081
1082                 case ICMD_FNEG:       /* ..., value  ==> ..., - value                 */
1083
1084                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1085                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1086                         M_FMOVN(s1, d);
1087                         emit_store_dst(jd, iptr, d);
1088                         break;
1089
1090                 case ICMD_DNEG:       /* ..., value  ==> ..., - value                 */
1091
1092                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1093                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1094                         M_FMOVN(s1, d);
1095                         emit_store_dst(jd, iptr, d);
1096                         break;
1097
1098                 case ICMD_FADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
1099
1100                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1101                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1102                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1103                         M_FADD(s1, s2, d);
1104                         emit_store_dst(jd, iptr, d);
1105                         break;
1106
1107                 case ICMD_DADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
1108
1109                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1110                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1111                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1112                         M_DADD(s1, s2, d);
1113                         emit_store_dst(jd, iptr, d);
1114                         break;
1115
1116                 case ICMD_FSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
1117
1118                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1119                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1120                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1121                         M_FSUB(s1, s2, d);
1122                         emit_store_dst(jd, iptr, d);
1123                         break;
1124
1125                 case ICMD_DSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
1126
1127                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1128                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1129                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1130                         M_DSUB(s1, s2, d);
1131                         emit_store_dst(jd, iptr, d);
1132                         break;
1133
1134                 case ICMD_FMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1135
1136                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1137                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1138                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1139                         M_FMUL(s1, s2, d);
1140                         emit_store_dst(jd, iptr, d);
1141                         break;
1142
1143                 case ICMD_DMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1144
1145                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1146                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1147                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1148                         M_DMUL(s1, s2, d);
1149                         emit_store_dst(jd, iptr, d);
1150                         break;
1151
1152                 case ICMD_FDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1153
1154                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1155                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1156                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1157                         M_FDIV(s1, s2, d);
1158                         emit_store_dst(jd, iptr, d);
1159                         break;
1160
1161                 case ICMD_DDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1162
1163                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1164                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1165                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1166                         M_DDIV(s1, s2, d);
1167                         emit_store_dst(jd, iptr, d);
1168                         break;
1169
1170                 case ICMD_F2I:       /* ..., value  ==> ..., (int) value              */
1171                 case ICMD_D2I:
1172
1173                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1174                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1175                         M_CLR(d);
1176                         disp = dseg_add_float(cd, 0.0);
1177                         M_FLD(REG_FTMP2, REG_PV, disp);
1178                         M_FCMPU(s1, REG_FTMP2);
1179                         M_BNAN(4);
1180                         disp = dseg_add_unique_s4(cd, 0);
1181                         M_CVTDL_C(s1, REG_FTMP1);
1182                         M_LDA(REG_ITMP1, REG_PV, disp);
1183                         M_STFIWX(REG_FTMP1, 0, REG_ITMP1);
1184                         M_ILD(d, REG_PV, disp);
1185                         emit_store_dst(jd, iptr, d);
1186                         break;
1187
1188                 case ICMD_F2D:       /* ..., value  ==> ..., (double) value           */
1189
1190                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1191                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1192                         M_FLTMOVE(s1, d);
1193                         emit_store_dst(jd, iptr, d);
1194                         break;
1195
1196                 case ICMD_D2F:       /* ..., value  ==> ..., (double) value           */
1197
1198                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1199                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1200                         M_CVTDF(s1, d);
1201                         emit_store_dst(jd, iptr, d);
1202                         break;
1203
1204                 case ICMD_FCMPL:      /* ..., val1, val2  ==> ..., val1 fcmpg val2    */
1205                 case ICMD_DCMPL:      /* == => 0, < => 1, > => -1                     */
1206
1207                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1208                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1209                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1210                         M_FCMPU(s2, s1);
1211                         M_IADD_IMM(REG_ZERO, -1, d);
1212                         M_BNAN(4);
1213                         M_BGT(3);
1214                         M_IADD_IMM(REG_ZERO, 0, d);
1215                         M_BGE(1);
1216                         M_IADD_IMM(REG_ZERO, 1, d);
1217                         emit_store_dst(jd, iptr, d);
1218                         break;
1219
1220                 case ICMD_FCMPG:      /* ..., val1, val2  ==> ..., val1 fcmpl val2    */
1221                 case ICMD_DCMPG:      /* == => 0, < => 1, > => -1                     */
1222
1223                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1224                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1225                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1226                         M_FCMPU(s1, s2);
1227                         M_IADD_IMM(REG_ZERO, 1, d);
1228                         M_BNAN(4);
1229                         M_BGT(3);
1230                         M_IADD_IMM(REG_ZERO, 0, d);
1231                         M_BGE(1);
1232                         M_IADD_IMM(REG_ZERO, -1, d);
1233                         emit_store_dst(jd, iptr, d);
1234                         break;
1235
1236
1237                 /* memory operations **************************************************/
1238
1239                 case ICMD_ARRAYLENGTH: /* ..., arrayref  ==> ..., length              */
1240
1241                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1242                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1243                         emit_nullpointer_check(cd, iptr, s1);
1244                         M_ILD(d, s1, OFFSET(java_array_t, size));
1245                         emit_store_dst(jd, iptr, d);
1246                         break;
1247
1248                 case ICMD_BALOAD:     /* ..., arrayref, index  ==> ..., value         */
1249
1250                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1251                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1252                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1253                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1254                         M_IADD_IMM(s2, OFFSET(java_bytearray_t, data[0]), REG_ITMP2);
1255                         /* implicit null-pointer check */
1256                         M_LBZX(d, s1, REG_ITMP2);
1257                         M_BSEXT(d, d);
1258                         emit_store_dst(jd, iptr, d);
1259                         break;
1260
1261                 case ICMD_CALOAD:     /* ..., arrayref, index  ==> ..., value         */
1262
1263                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1264                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1265                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1266                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1267                         M_SLL_IMM(s2, 1, REG_ITMP2);
1268                         M_IADD_IMM(REG_ITMP2, OFFSET(java_chararray_t, data[0]), REG_ITMP2);
1269                         /* implicit null-pointer check */
1270                         M_LHZX(d, s1, REG_ITMP2);
1271                         emit_store_dst(jd, iptr, d);
1272                         break;
1273
1274                 case ICMD_SALOAD:     /* ..., arrayref, index  ==> ..., value         */
1275
1276                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1277                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1278                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1279                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1280                         M_SLL_IMM(s2, 1, REG_ITMP2);
1281                         M_IADD_IMM(REG_ITMP2, OFFSET(java_shortarray_t, data[0]), REG_ITMP2);
1282                         /* implicit null-pointer check */
1283                         M_LHAX(d, s1, REG_ITMP2);
1284                         emit_store_dst(jd, iptr, d);
1285                         break;
1286
1287                 case ICMD_IALOAD:     /* ..., arrayref, index  ==> ..., value         */
1288
1289                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1290                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1291                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1292                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1293                         M_SLL_IMM(s2, 2, REG_ITMP2);
1294                         M_IADD_IMM(REG_ITMP2, OFFSET(java_intarray_t, data[0]), REG_ITMP2);
1295                         /* implicit null-pointer check */
1296                         M_LWAX(d, s1, REG_ITMP2);
1297                         emit_store_dst(jd, iptr, d);
1298                         break;
1299
1300                 case ICMD_LALOAD:     /* ..., arrayref, index  ==> ..., value         */
1301
1302                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1303                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1304                         d = codegen_reg_of_dst(jd, iptr, PACK_REGS(REG_ITMP2, REG_ITMP1));
1305                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1306                         M_SLL_IMM(s2, 3, REG_ITMP2);
1307                         M_IADD(s1, REG_ITMP2, REG_ITMP2);
1308                         /* implicit null-pointer check */
1309                         M_LLD_INTERN(d, REG_ITMP2, OFFSET(java_longarray_t, data[0]));
1310                         emit_store_dst(jd, iptr, d);
1311                         break;
1312
1313                 case ICMD_FALOAD:     /* ..., arrayref, index  ==> ..., value         */
1314
1315                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1316                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1317                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1318                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1319                         M_SLL_IMM(s2, 2, REG_ITMP2);
1320                         M_IADD_IMM(REG_ITMP2, OFFSET(java_floatarray_t, data[0]), REG_ITMP2);
1321                         /* implicit null-pointer check */
1322                         M_LFSX(d, s1, REG_ITMP2);
1323                         emit_store_dst(jd, iptr, d);
1324                         break;
1325
1326                 case ICMD_DALOAD:     /* ..., arrayref, index  ==> ..., value         */
1327
1328                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1329                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1330                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1331                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1332                         M_SLL_IMM(s2, 3, REG_ITMP2);
1333                         M_IADD_IMM(REG_ITMP2, OFFSET(java_doublearray_t, data[0]), REG_ITMP2);
1334                         /* implicit null-pointer check */
1335                         M_LFDX(d, s1, REG_ITMP2);
1336                         emit_store_dst(jd, iptr, d);
1337                         break;
1338
1339                 case ICMD_AALOAD:     /* ..., arrayref, index  ==> ..., value         */
1340
1341                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1342                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1343                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1344                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1345                         M_SLL_IMM(s2, 3, REG_ITMP2);
1346                         M_IADD_IMM(REG_ITMP2, OFFSET(java_objectarray_t, data[0]), REG_ITMP2);
1347                         /* implicit null-pointer check */
1348                         M_ALDX(d, s1, REG_ITMP2);
1349                         emit_store_dst(jd, iptr, d);
1350                         break;
1351
1352
1353                 case ICMD_BASTORE:    /* ..., arrayref, index, value  ==> ...         */
1354
1355                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1356                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1357                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1358                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1359                         M_IADD_IMM(s2, OFFSET(java_bytearray_t, data[0]), REG_ITMP2);
1360                         /* implicit null-pointer check */
1361                         M_STBX(s3, s1, REG_ITMP2);
1362                         break;
1363
1364                 case ICMD_CASTORE:    /* ..., arrayref, index, value  ==> ...         */
1365
1366                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1367                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1368                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1369                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1370                         M_SLL_IMM(s2, 1, REG_ITMP2);
1371                         M_IADD_IMM(REG_ITMP2, OFFSET(java_chararray_t, data[0]), REG_ITMP2);
1372                         /* implicit null-pointer check */
1373                         M_STHX(s3, s1, REG_ITMP2);
1374                         break;
1375
1376                 case ICMD_SASTORE:    /* ..., arrayref, index, value  ==> ...         */
1377
1378                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1379                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1380                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1381                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1382                         M_SLL_IMM(s2, 1, REG_ITMP2);
1383                         M_IADD_IMM(REG_ITMP2, OFFSET(java_shortarray_t, data[0]), REG_ITMP2);
1384                         M_STHX(s3, s1, REG_ITMP2);
1385                         break;
1386
1387                 case ICMD_IASTORE:    /* ..., arrayref, index, value  ==> ...         */
1388
1389                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1390                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1391                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1392                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1393                         M_SLL_IMM(s2, 2, REG_ITMP2);
1394                         M_IADD_IMM(REG_ITMP2, OFFSET(java_intarray_t, data[0]), REG_ITMP2);
1395                         /* implicit null-pointer check */
1396                         M_STWX(s3, s1, REG_ITMP2);
1397                         break;
1398
1399                 case ICMD_LASTORE:    /* ..., arrayref, index, value  ==> ...         */
1400
1401                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1402                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1403                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1404                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1405                         M_SLL_IMM(s2, 3, REG_ITMP2);
1406                         M_IADD_IMM(REG_ITMP2, OFFSET(java_longarray_t, data[0]), REG_ITMP2);
1407                         /* implicit null-pointer check */
1408                         M_LSTX(s3, s1, REG_ITMP2);
1409                         break;
1410
1411                 case ICMD_FASTORE:    /* ..., arrayref, index, value  ==> ...         */
1412
1413                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1414                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1415                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1416                         s3 = emit_load_s3(jd, iptr, REG_FTMP3);
1417                         M_SLL_IMM(s2, 2, REG_ITMP2);
1418                         M_IADD_IMM(REG_ITMP2, OFFSET(java_floatarray_t, data[0]), REG_ITMP2);
1419                         /* implicit null-pointer check */
1420                         M_STFSX(s3, s1, REG_ITMP2);
1421                         break;
1422
1423                 case ICMD_DASTORE:    /* ..., arrayref, index, value  ==> ...         */
1424
1425                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1426                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1427                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1428                         s3 = emit_load_s3(jd, iptr, REG_FTMP3);
1429                         M_SLL_IMM(s2, 3, REG_ITMP2);
1430                         M_IADD_IMM(REG_ITMP2, OFFSET(java_doublearray_t, data[0]), REG_ITMP2);
1431                         /* implicit null-pointer check */
1432                         M_STFDX(s3, s1, REG_ITMP2);
1433                         break;
1434
1435                 case ICMD_AASTORE:    /* ..., arrayref, index, value  ==> ...         */
1436
1437                         s1 = emit_load_s1(jd, iptr, REG_A0);
1438                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1439                         emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
1440                         s3 = emit_load_s3(jd, iptr, REG_A1);
1441
1442                         disp = dseg_add_functionptr(cd, BUILTIN_FAST_canstore);
1443                         M_ALD(REG_ITMP3, REG_PV, disp);
1444                         M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
1445                         M_MTCTR(REG_ITMP3);
1446
1447                         M_INTMOVE(s1, REG_A0);
1448                         M_INTMOVE(s3, REG_A1);
1449
1450                         M_JSR;
1451                         emit_arraystore_check(cd, iptr);
1452
1453                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1454                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1455                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1456                         M_SLL_IMM(s2, 3, REG_ITMP2);
1457                         M_IADD_IMM(REG_ITMP2, OFFSET(java_objectarray_t, data[0]), REG_ITMP2);
1458                         /* implicit null-pointer check */
1459                         M_ASTX(s3, s1, REG_ITMP2);
1460                         break;
1461
1462
1463                 case ICMD_GETSTATIC:  /* ...  ==> ..., value                          */
1464
1465                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1466                                 uf        = iptr->sx.s23.s3.uf;
1467                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1468                                 disp      = dseg_add_unique_address(cd, NULL);
1469
1470                                 patcher_add_patch_ref(jd, PATCHER_get_putstatic,
1471                                                                         iptr->sx.s23.s3.uf, disp);
1472
1473                         }
1474                         else {
1475                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1476                                 fieldtype = fi->type;
1477                                 disp      = dseg_add_address(cd, fi->value);
1478
1479                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1480                                         patcher_add_patch_ref(jd, PATCHER_initialize_class, fi->class, disp);
1481                                 }
1482                         }
1483
1484                         M_ALD(REG_ITMP1, REG_PV, disp);
1485                         switch (fieldtype) {
1486                         case TYPE_INT:
1487                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1488                                 M_ILD_INTERN(d, REG_ITMP1, 0);
1489                                 break;
1490                         case TYPE_LNG:
1491                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1492                                 M_LLD(d, REG_ITMP1, 0);
1493                                 break;
1494                         case TYPE_ADR:
1495                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1496                                 M_ALD_INTERN(d, REG_ITMP1, 0);
1497                                 break;
1498                         case TYPE_FLT:
1499                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1500                                 M_FLD_INTERN(d, REG_ITMP1, 0);
1501                                 break;
1502                         case TYPE_DBL:
1503                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1504                                 M_DLD_INTERN(d, REG_ITMP1, 0);
1505                                 break;
1506                         }
1507                         emit_store_dst(jd, iptr, d);
1508                         break;
1509
1510                 case ICMD_PUTSTATIC:  /* ..., value  ==> ...                          */
1511
1512
1513                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1514                                 uf        = iptr->sx.s23.s3.uf;
1515                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1516                                 disp      = dseg_add_unique_address(cd, NULL);
1517
1518                                 patcher_add_patch_ref(jd, PATCHER_get_putstatic,
1519                                                                         iptr->sx.s23.s3.uf, disp);
1520                         }
1521                         else {
1522                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1523                                 fieldtype = fi->type;
1524                                 disp      = dseg_add_address(cd, fi->value);
1525
1526                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1527                                         patcher_add_patch_ref(jd, PATCHER_initialize_class, fi->class, disp);
1528                                 }
1529                         }
1530
1531                         M_ALD(REG_ITMP1, REG_PV, disp);
1532                         switch (fieldtype) {
1533                         case TYPE_INT:
1534                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1535                                 M_IST_INTERN(s1, REG_ITMP1, 0);
1536                                 break;
1537                         case TYPE_LNG:
1538                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1539                                 M_LST_INTERN(s1, REG_ITMP1, 0);
1540                                 break;
1541                         case TYPE_ADR:
1542                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1543                                 M_AST_INTERN(s1, REG_ITMP1, 0);
1544                                 break;
1545                         case TYPE_FLT:
1546                                 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1547                                 M_FST_INTERN(s1, REG_ITMP1, 0);
1548                                 break;
1549                         case TYPE_DBL:
1550                                 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1551                                 M_DST_INTERN(s1, REG_ITMP1, 0);
1552                                 break;
1553                         }
1554                         break;
1555
1556
1557                 case ICMD_GETFIELD:   /* ...  ==> ..., value                          */
1558
1559                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1560
1561                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1562                                 uf        = iptr->sx.s23.s3.uf;
1563                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1564                                 disp      = 0;
1565
1566                                 patcher_add_patch_ref(jd, PATCHER_get_putfield, uf, 0);
1567                         }
1568                         else {
1569                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1570                                 fieldtype = fi->type;
1571                                 disp      = fi->offset;
1572                         }
1573
1574                         /* implicit null-pointer check */
1575                         switch (fieldtype) {
1576                         case TYPE_INT:
1577                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1578                                 M_ILD(d, s1, disp);
1579                                 break;
1580                         case TYPE_LNG:
1581                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1582                                 M_LLD(d, s1, disp);
1583                                 break;
1584                         case TYPE_ADR:
1585                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1586                                 M_ALD(d, s1, disp);
1587                                 break;
1588                         case TYPE_FLT:
1589                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1590                                 M_FLD(d, s1, disp);
1591                                 break;
1592                         case TYPE_DBL:
1593                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1594                                 M_DLD(d, s1, disp);
1595                                 break;
1596                         }
1597                         emit_store_dst(jd, iptr, d);
1598                         break;
1599
1600                 case ICMD_PUTFIELD:   /* ..., value  ==> ...                          */
1601
1602                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1603
1604                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1605                                 uf        = iptr->sx.s23.s3.uf;
1606                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1607                                 disp      = 0;
1608                         }
1609                         else {
1610                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1611                                 fieldtype = fi->type;
1612                                 disp      = fi->offset;
1613                         }
1614
1615                         if (IS_INT_LNG_TYPE(fieldtype)) {
1616                                 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1617                         }
1618                         else
1619                                 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1620
1621                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1622                                 patcher_add_patch_ref(jd, PATCHER_get_putfield, uf, 0);
1623                         }
1624
1625
1626                         /* implicit null-pointer check */
1627                         switch (fieldtype) {
1628                         case TYPE_INT:
1629                                 M_IST(s2, s1, disp);
1630                                 break;
1631                         case TYPE_LNG:
1632                                 M_LST(s2, s1, disp);
1633                                 break;
1634                         case TYPE_ADR:
1635                                 M_AST(s2, s1, disp);
1636                                 break;
1637                         case TYPE_FLT:
1638                                 M_FST(s2, s1, disp);
1639                                 break;
1640                         case TYPE_DBL:
1641                                 M_DST(s2, s1, disp);
1642                                 break;
1643                         }
1644                         break;
1645
1646
1647                 /* branch operations **************************************************/
1648
1649                 case ICMD_ATHROW:       /* ..., objectref ==> ... (, objectref)       */
1650
1651                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1652                         M_LNGMOVE(s1, REG_ITMP1_XPTR);
1653
1654 #ifdef ENABLE_VERIFIER
1655                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1656                                 patcher_add_patch_ref(jd, PATCHER_resolve_class,
1657                                                                         iptr->sx.s23.s2.uc, 0);
1658                         }
1659 #endif /* ENABLE_VERIFIER */
1660
1661                         disp = dseg_add_functionptr(cd, asm_handle_exception);
1662                         M_ALD(REG_ITMP2, REG_PV, disp);
1663                         M_MTCTR(REG_ITMP2);
1664
1665                         if (code_is_leafmethod(code))
1666                                 M_MFLR(REG_ITMP3);                          /* save LR        */
1667
1668                         M_BL(0);                                        /* get current PC */
1669                         M_MFLR(REG_ITMP2_XPC);
1670
1671                         if (code_is_leafmethod(code))
1672                                 M_MTLR(REG_ITMP3);                          /* restore LR     */
1673
1674                         M_RTS;                                          /* jump to CTR    */
1675                         ALIGNCODENOP;
1676                         break;
1677
1678                 case ICMD_GOTO:         /* ... ==> ...                                */
1679                 case ICMD_RET:          /* ... ==> ...                                */
1680
1681                         emit_br(cd, iptr->dst.block);
1682                         ALIGNCODENOP;
1683                         break;
1684
1685                 case ICMD_JSR:          /* ... ==> ...                                */
1686
1687                         emit_br(cd, iptr->sx.s23.s3.jsrtarget.block);
1688                         ALIGNCODENOP;
1689                         break;
1690
1691                 case ICMD_IFNULL:       /* ..., value ==> ...                         */
1692
1693                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1694                         M_TST(s1);
1695                         emit_beq(cd, iptr->dst.block);
1696                         break;
1697
1698                 case ICMD_IFNONNULL:    /* ..., value ==> ...                         */
1699
1700                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1701                         M_TST(s1);
1702                         emit_bne(cd, iptr->dst.block);
1703                         break;
1704
1705                 case ICMD_IFLT:
1706                 case ICMD_IFLE:
1707                 case ICMD_IFNE:
1708                 case ICMD_IFGT:
1709                 case ICMD_IFGE:
1710                 case ICMD_IFEQ:         /* ..., value ==> ...                         */
1711
1712                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1713                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767))
1714                                 M_CMPI(s1, iptr->sx.val.i);
1715                         else {
1716                                 ICONST(REG_ITMP2, iptr->sx.val.i);
1717                                 M_CMP(s1, REG_ITMP2);
1718                         }
1719                         emit_bcc(cd, iptr->dst.block, iptr->opc - ICMD_IFEQ, BRANCH_OPT_NONE);
1720                         break;
1721
1722                 case ICMD_IF_LEQ:       /* ..., value ==> ...                         */
1723                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1724                         LCONST(REG_ITMP2, iptr->sx.val.l);
1725                         M_CMP(s1, REG_ITMP2);
1726                         emit_beq(cd, iptr->dst.block);
1727                         break;
1728                 case ICMD_IF_LLT:       /* ..., value ==> ...                         */
1729                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1730                         LCONST(REG_ITMP2, iptr->sx.val.l);
1731                         M_CMP(s1, REG_ITMP2);
1732                         emit_blt(cd, iptr->dst.block);
1733                         break;
1734                 case ICMD_IF_LLE:       /* ..., value ==> ...                         */
1735                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1736                         LCONST(REG_ITMP2, iptr->sx.val.l);
1737                         M_CMP(s1, REG_ITMP2);
1738                         emit_ble(cd, iptr->dst.block);
1739                         break;
1740
1741                 case ICMD_IF_LNE:       /* ..., value ==> ... */
1742                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1743                         LCONST(REG_ITMP2, iptr->sx.val.l);
1744                         M_CMP(s1, REG_ITMP2);
1745                         emit_bne(cd, iptr->dst.block);
1746                         break;
1747                 case ICMD_IF_LGE:       /* ..., value ==> ... */
1748                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1749                         LCONST(REG_ITMP2, iptr->sx.val.l);
1750                         M_CMP(s1, REG_ITMP2);
1751                         emit_bge(cd, iptr->dst.block);
1752                         break;
1753                 case ICMD_IF_LGT:       /* ..., value ==> ...                         */
1754                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1755                         LCONST(REG_ITMP2, iptr->sx.val.l);
1756                         M_CMP(s1, REG_ITMP2);
1757                         emit_bgt(cd, iptr->dst.block);
1758                         break;
1759                 case ICMD_IF_ICMPEQ:    /* ..., value, value ==> ...                  */
1760                 case ICMD_IF_ACMPEQ:    /* op1 = target JavaVM pc                     */
1761                 case ICMD_IF_LCMPEQ:
1762
1763                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1764                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1765                         M_CMP(s1, s2);
1766                         emit_beq(cd, iptr->dst.block);
1767                         break;
1768
1769                 case ICMD_IF_ICMPNE:    /* ..., value, value ==> ...                  */
1770                 case ICMD_IF_ACMPNE:    /* op1 = target JavaVM pc                     */
1771                 case ICMD_IF_LCMPNE:
1772
1773                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1774                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1775                         M_CMP(s1, s2);
1776                         emit_bne(cd, iptr->dst.block);
1777                         break;
1778
1779
1780                 case ICMD_IF_ICMPLT:    /* ..., value, value ==> ...                  */
1781                 case ICMD_IF_LCMPLT:
1782
1783                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1784                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1785                         M_CMP(s1, s2);
1786                         emit_blt(cd, iptr->dst.block);
1787                         break;
1788
1789                 case ICMD_IF_ICMPGT:    /* ..., value, value ==> ...                  */
1790                 case ICMD_IF_LCMPGT:
1791
1792                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1793                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1794                         M_CMP(s1, s2);
1795                         emit_bgt(cd, iptr->dst.block);
1796                         break;
1797
1798                 case ICMD_IF_ICMPLE:    /* ..., value, value ==> ...                  */
1799                 case ICMD_IF_LCMPLE:
1800
1801                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1802                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1803                         M_CMP(s1, s2);
1804                         emit_ble(cd, iptr->dst.block);
1805                         break;
1806
1807                 case ICMD_IF_ICMPGE:    /* ..., value, value ==> ...                  */
1808                 case ICMD_IF_LCMPGE:
1809
1810                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1811                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1812                         M_CMP(s1, s2);
1813                         emit_bge(cd, iptr->dst.block);
1814                         break;
1815
1816
1817                 case ICMD_LRETURN:      /* ..., retvalue ==> ...                      */
1818                 case ICMD_IRETURN:      /* ..., retvalue ==> ...                      */
1819
1820                         REPLACEMENT_POINT_RETURN(cd, iptr);
1821                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
1822                         M_LNGMOVE(s1, REG_RESULT);
1823                         goto nowperformreturn;
1824
1825                 case ICMD_ARETURN:      /* ..., retvalue ==> ...                      */
1826
1827                         REPLACEMENT_POINT_RETURN(cd, iptr);
1828                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
1829                         M_LNGMOVE(s1, REG_RESULT);
1830
1831 #ifdef ENABLE_VERIFIER
1832                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1833                                 patcher_add_patch_ref(jd, PATCHER_resolve_class,
1834                                                                         iptr->sx.s23.s2.uc, 0);
1835                         }
1836 #endif /* ENABLE_VERIFIER */
1837
1838                         goto nowperformreturn;
1839
1840                 case ICMD_FRETURN:      /* ..., retvalue ==> ...                      */
1841                 case ICMD_DRETURN:
1842
1843                         REPLACEMENT_POINT_RETURN(cd, iptr);
1844                         s1 = emit_load_s1(jd, iptr, REG_FRESULT);
1845                         M_FLTMOVE(s1, REG_FRESULT);
1846                         goto nowperformreturn;
1847
1848                 case ICMD_RETURN:      /* ...  ==> ...                                */
1849
1850                         REPLACEMENT_POINT_RETURN(cd, iptr);
1851
1852 nowperformreturn:
1853                         {
1854                         s4 i, p;
1855
1856                         p = cd->stackframesize;
1857
1858                         /* call trace function */
1859
1860 #if !defined(NDEBUG)
1861                         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
1862                                 emit_verbosecall_exit(jd);
1863 #endif
1864
1865 #if defined(ENABLE_THREADS)
1866                         if (checksync && code_is_synchronized(code)) {
1867                                 disp = dseg_add_functionptr(cd, LOCK_monitor_exit);
1868                                 M_ALD(REG_ITMP3, REG_PV, disp);
1869                                 M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
1870                                 M_MTCTR(REG_ITMP3);
1871
1872                                 /* we need to save the proper return value */
1873
1874                                 switch (iptr->opc) {
1875                                 case ICMD_LRETURN:
1876                                 case ICMD_IRETURN:
1877                                 case ICMD_ARETURN:
1878                                         /* fall through */
1879                                         M_LST(REG_RESULT , REG_SP, rd->memuse * 8 + 8);
1880                                         break;
1881                                 case ICMD_FRETURN:
1882                                         M_FST(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
1883                                         break;
1884                                 case ICMD_DRETURN:
1885                                         M_DST(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
1886                                         break;
1887                                 }
1888
1889                                 M_ALD(REG_A0, REG_SP, rd->memuse * 8);
1890                                 M_JSR;
1891
1892                                 /* and now restore the proper return value */
1893
1894                                 switch (iptr->opc) {
1895                                 case ICMD_LRETURN:
1896                                 case ICMD_IRETURN:
1897                                 case ICMD_ARETURN:
1898                                         /* fall through */
1899                                         M_LLD(REG_RESULT , REG_SP, rd->memuse * 8 + 8);
1900                                         break;
1901                                 case ICMD_FRETURN:
1902                                         M_FLD(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
1903                                         break;
1904                                 case ICMD_DRETURN:
1905                                         M_DLD(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
1906                                         break;
1907                                 }
1908                         }
1909 #endif
1910
1911                         /* restore return address                                         */
1912
1913                         if (!code_is_leafmethod(code)) {
1914                                 /* ATTENTION: Don't use REG_ZERO (r0) here, as M_ALD
1915                                    may have a displacement overflow. */
1916
1917                                 M_ALD(REG_ITMP1, REG_SP, p * 8 + LA_LR_OFFSET);
1918                                 M_MTLR(REG_ITMP1);
1919                         }
1920
1921                         /* restore saved registers                                        */
1922
1923                         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
1924                                 p--; M_LLD(rd->savintregs[i], REG_SP, p * 8);
1925                         }
1926                         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
1927                                 p--; M_DLD(rd->savfltregs[i], REG_SP, p * 8);
1928                         }
1929
1930                         /* deallocate stack                                               */
1931
1932                         if (cd->stackframesize)
1933                                 M_LDA(REG_SP, REG_SP, cd->stackframesize * 8);
1934
1935                         M_RET;
1936                         ALIGNCODENOP;
1937                         }
1938                         break;
1939
1940
1941                 case ICMD_TABLESWITCH:  /* ..., index ==> ...                         */
1942                         {
1943                         s4 i, l;
1944                         branch_target_t *table;
1945
1946                         table = iptr->dst.table;
1947
1948                         l = iptr->sx.s23.s2.tablelow;
1949                         i = iptr->sx.s23.s3.tablehigh;
1950
1951                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1952                         if (l == 0) {
1953                                 M_INTMOVE(s1, REG_ITMP1);
1954                         } else if (l <= 32768) {
1955                                 M_LDA(REG_ITMP1, s1, -l);
1956                         } else {
1957                                 ICONST(REG_ITMP2, l);
1958                                 M_SUB(s1, REG_ITMP2, REG_ITMP1);
1959                         }
1960
1961                         /* number of targets */
1962                         i = i - l + 1;
1963
1964                         /* range check */
1965
1966                         M_CMPUI(REG_ITMP1, i - 1);
1967                         emit_bgt(cd, table[0].block);
1968
1969                         /* build jump table top down and use address of lowest entry */
1970
1971                         table += i;
1972
1973                         while (--i >= 0) {
1974                                 dseg_add_target(cd, table->block);
1975                                 --table;
1976                         }
1977
1978                         /* length of dataseg after last dseg_add_unique_target is used by load */
1979
1980                         M_SLL_IMM(REG_ITMP1, 3, REG_ITMP1);
1981                         M_IADD(REG_ITMP1, REG_PV, REG_ITMP2);
1982                         M_ALD(REG_ITMP2, REG_ITMP2, -(cd->dseglen));
1983                         M_MTCTR(REG_ITMP2);
1984                         M_RTS;
1985                         ALIGNCODENOP;
1986                         }
1987                         break;
1988
1989
1990                 case ICMD_LOOKUPSWITCH: /* ..., key ==> ...                           */
1991                         {
1992                         s4 i, val;
1993                         lookup_target_t *lookup;
1994
1995                         lookup = iptr->dst.lookup;
1996
1997                         i = iptr->sx.s23.s2.lookupcount;
1998
1999                         MCODECHECK((i<<3)+8);
2000                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2001                         while (--i >= 0) {
2002                                 val = lookup->value;
2003                                 if ((val >= -32768) && (val <= 32767)) {
2004                                         M_CMPI(s1, val);
2005
2006                                 } else {
2007                                         a = dseg_add_s4(cd, val);
2008                                         M_ILD(REG_ITMP2, REG_PV, a);
2009                                         M_CMP(s1, REG_ITMP2);
2010                                 }
2011                                 emit_beq(cd, lookup->target.block);
2012                                 ++lookup;
2013                         }
2014
2015                         emit_br(cd, iptr->sx.s23.s3.lookupdefault.block);
2016
2017                         ALIGNCODENOP;
2018                         break;
2019                         }
2020
2021
2022                 case ICMD_BUILTIN:      /* ..., [arg1, [arg2 ...]] ==> ...            */
2023
2024                         bte = iptr->sx.s23.s3.bte;
2025                         md = bte->md;
2026                         goto gen_method;
2027
2028                 case ICMD_INVOKESTATIC: /* ..., [arg1, [arg2 ...]] ==> ...            */
2029                 case ICMD_INVOKESPECIAL:/* ..., objectref, [arg1, [arg2 ...]] ==> ... */
2030                 case ICMD_INVOKEVIRTUAL:/* op1 = arg count, val.a = method pointer    */
2031                 case ICMD_INVOKEINTERFACE:
2032
2033                         REPLACEMENT_POINT_INVOKE(cd, iptr);
2034
2035                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2036                                 lm = NULL;
2037                                 um = iptr->sx.s23.s3.um;
2038                                 md = um->methodref->parseddesc.md;
2039                         }
2040                         else {
2041                                 lm = iptr->sx.s23.s3.fmiref->p.method;
2042                                 um = NULL;
2043                                 md = lm->parseddesc;
2044                         }
2045
2046 gen_method:
2047                         s3 = md->paramcount;
2048
2049                         MCODECHECK((s3 << 2) + 128);
2050
2051                         /* copy arguments to registers or stack location */
2052
2053                         for (s3 = s3 - 1; s3 >= 0; s3--) {
2054                                 var = VAR(iptr->sx.s23.s2.args[s3]);
2055                                 d   = md->params[s3].regoff;
2056
2057                                 if (var->flags & PREALLOC)
2058                                         continue;
2059
2060                                 if (IS_INT_LNG_TYPE(var->type)) {
2061                                         if (!md->params[s3].inmemory) {
2062                                                 s1 = emit_load(jd, iptr, var, d);
2063                                                 M_LNGMOVE(s1, d);
2064                                         }
2065                                         else {
2066                                                 s1 = emit_load(jd, iptr, var, REG_ITMP1);
2067                                                 M_LST(s1, REG_SP, d);
2068                                         }
2069                                 }
2070                                 else {
2071                                         if (!md->params[s3].inmemory) {
2072                                                 s1 = emit_load(jd, iptr, var, d);
2073                                                 M_FLTMOVE(s1, d);
2074                                         }
2075                                         else {
2076                                                 s1 = emit_load(jd, iptr, var, REG_FTMP1);
2077                                                 M_DST(s1, REG_SP, d);
2078                                         }
2079                                 }
2080                         }
2081
2082                         switch (iptr->opc) {
2083                         case ICMD_BUILTIN:
2084                                 if (bte->stub == NULL) {
2085                                         disp = dseg_add_functionptr(cd, bte->fp);
2086                                         M_ALD(REG_PV, REG_PV, disp);
2087                                         M_ALD(REG_PV, REG_PV, 0);       /* TOC */
2088                                 }
2089                                 else {
2090                                         disp = dseg_add_functionptr(cd, bte->stub);
2091                                         M_ALD(REG_PV, REG_PV, disp);
2092                                 }
2093
2094                                 /* generate the actual call */
2095                                 M_MTCTR(REG_PV);
2096                                 M_JSR;
2097                                 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2098                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2099                                 M_MFLR(REG_ITMP1);
2100                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2101                                 break;
2102
2103                         case ICMD_INVOKESPECIAL:
2104                                 emit_nullpointer_check(cd, iptr, REG_A0);
2105                                 /* fall through */
2106
2107                         case ICMD_INVOKESTATIC:
2108                                 if (lm == NULL) {
2109                                         disp = dseg_add_unique_address(cd, um);
2110
2111                                         patcher_add_patch_ref(jd, PATCHER_invokestatic_special,
2112                                                                                 um, disp);
2113                                 } else {
2114                                         disp = dseg_add_address(cd, lm->stubroutine);
2115                                 }
2116                                 M_ALD(REG_PV, REG_PV, disp);
2117
2118                                 /* generate the actual call */
2119
2120                                 M_MTCTR(REG_PV);
2121                                 M_JSR;
2122                                 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2123                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2124                                 M_MFLR(REG_ITMP1);
2125                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2126                                 break;
2127
2128                         case ICMD_INVOKEVIRTUAL:
2129                                 if (lm == NULL) {
2130                                         patcher_add_patch_ref(jd, PATCHER_invokevirtual, um, 0);
2131                                         s1 = 0;
2132                                 } else {
2133                                         s1 = OFFSET(vftbl_t, table[0]) +
2134                                                 sizeof(methodptr) * lm->vftblindex;
2135                                 }
2136
2137                                 /* implicit null-pointer check */
2138                                 M_ALD(REG_METHODPTR, REG_A0, OFFSET(java_object_t, vftbl));
2139                                 M_ALD(REG_PV, REG_METHODPTR, s1);
2140
2141                                 /* generate the actual call */
2142
2143                                 M_MTCTR(REG_PV);
2144                                 M_JSR;
2145                                 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2146                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2147                                 M_MFLR(REG_ITMP1);
2148                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2149                                 break;
2150
2151                         case ICMD_INVOKEINTERFACE:
2152                                 if (lm == NULL) {
2153                                         patcher_add_patch_ref(jd, PATCHER_invokeinterface, um, 0);
2154
2155                                         s1 = 0;
2156                                         s2 = 0;
2157
2158                                 } else {
2159                                         s1 = OFFSET(vftbl_t, interfacetable[0]) -
2160                                                 sizeof(methodptr*) * lm->class->index;
2161
2162                                         s2 = sizeof(methodptr) * (lm - lm->class->methods);
2163                                 }
2164
2165                                 /* implicit null-pointer check */
2166                                 M_ALD(REG_METHODPTR, REG_A0, OFFSET(java_object_t, vftbl));
2167                                 M_ALD(REG_METHODPTR, REG_METHODPTR, s1);
2168                                 M_ALD(REG_PV, REG_METHODPTR, s2);
2169
2170                                 /* generate the actual call */
2171
2172                                 M_MTCTR(REG_PV);
2173                                 M_JSR;
2174                                 REPLACEMENT_POINT_INVOKE_RETURN(cd, iptr);
2175                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2176                                 M_MFLR(REG_ITMP1);
2177                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2178
2179                                 break;
2180                         }
2181                         /* store return value */
2182
2183                         d = md->returntype.type;
2184
2185                         if (d != TYPE_VOID) {
2186                                 if (IS_INT_LNG_TYPE(d)) {
2187                                         s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2188                                         M_MOV(REG_RESULT, s1);
2189                                 }
2190                                 else {
2191                                         s1 = codegen_reg_of_dst(jd, iptr, REG_FRESULT);
2192                                         M_FLTMOVE(REG_FRESULT, s1);
2193                                 }
2194                                 emit_store_dst(jd, iptr, s1);
2195                         }
2196                         break;
2197
2198                 case ICMD_CHECKCAST:  /* ..., objectref ==> ..., objectref            */
2199                                       /* val.a: (classinfo*) superclass               */
2200
2201                         /*  superclass is an interface:
2202                          *
2203                          *  OK if ((sub == NULL) ||
2204                          *         (sub->vftbl->interfacetablelength > super->index) &&
2205                          *         (sub->vftbl->interfacetable[-super->index] != NULL));
2206                          *
2207                          *  superclass is a class:
2208                          *
2209                          *  OK if ((sub == NULL) || (0
2210                          *         <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2211                          *         super->vftbl->diffvall));
2212                          */
2213
2214                         if (!(iptr->flags.bits & INS_FLAG_ARRAY)) {
2215                                 /* object type cast-check */
2216
2217                                 classinfo *super;
2218                                 s4         superindex;
2219
2220                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2221                                         super      = NULL;
2222                                         superindex = 0;
2223                                 }
2224                                 else {
2225                                         super      = iptr->sx.s23.s3.c.cls;
2226                                         superindex = super->index;
2227                                 }
2228
2229                                 if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2230                                         CODEGEN_CRITICAL_SECTION_NEW;
2231                                 }
2232
2233                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2234
2235                                 /* if class is not resolved, check which code to call */
2236
2237                                 if (super == NULL) {
2238                                         M_TST(s1);
2239                                         emit_label_beq(cd, BRANCH_LABEL_1);
2240                                         disp = dseg_add_unique_s4(cd, 0);                     /* super->flags */
2241
2242                                         patcher_add_patch_ref(jd,
2243                                                                                 PATCHER_resolve_classref_to_flags,
2244                                                                                 iptr->sx.s23.s3.c.ref,
2245                                                                                 disp);
2246
2247                                         M_ILD(REG_ITMP2, REG_PV, disp);
2248                                         M_AND_IMM(REG_ITMP2, ACC_INTERFACE, REG_ITMP2);
2249
2250                                         emit_label_beq(cd, BRANCH_LABEL_2);
2251                                 }
2252
2253                                 /* interface checkcast code */
2254
2255                                 if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2256                                         if (super == NULL) {
2257                                                 patcher_add_patch_ref(jd,
2258                                                                                         PATCHER_checkcast_interface,
2259                                                                                         iptr->sx.s23.s3.c.ref,
2260                                                                                         0);
2261                                         } else {
2262                                                 M_TST(s1);
2263                                                 emit_label_beq(cd, BRANCH_LABEL_3);
2264                                         }
2265
2266                                         M_ALD(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
2267                                         M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, interfacetablelength));
2268                                         M_LDATST(REG_ITMP3, REG_ITMP3, -superindex);
2269                                         emit_classcast_check(cd, iptr, BRANCH_LE, REG_ITMP3, s1);
2270                                         M_ALD(REG_ITMP3, REG_ITMP2,
2271                                                   OFFSET(vftbl_t, interfacetable[0]) -
2272                                                   superindex * sizeof(methodptr*));
2273                                         M_TST(REG_ITMP3);
2274                                         emit_classcast_check(cd, iptr, BRANCH_EQ, REG_ITMP3, s1);
2275
2276                                         if (super == NULL)      {
2277                                                 emit_label_br(cd, BRANCH_LABEL_4);
2278                                         } else  {
2279                                                 emit_label(cd, BRANCH_LABEL_3);
2280                                         }
2281                                 }
2282
2283                                 /* class checkcast code */
2284
2285                                 if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2286                                         if (super == NULL) {
2287                                                 emit_label(cd, BRANCH_LABEL_2);
2288
2289                                                 disp = dseg_add_unique_address(cd, NULL);
2290                                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_vftbl,
2291                                                                                         iptr->sx.s23.s3.c.ref,
2292                                                                                         disp);
2293                                         } else {
2294                                                 disp = dseg_add_address(cd, super->vftbl);
2295                                                 M_TST(s1);
2296                                                 emit_label_beq(cd, BRANCH_LABEL_5);
2297                                         }
2298
2299                                         M_ALD(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
2300
2301                                         CODEGEN_CRITICAL_SECTION_START;
2302
2303                                         M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2304                                         M_ALD(REG_ITMP2, REG_PV, disp);
2305                                         if (s1 != REG_ITMP1) {
2306                                                 M_ILD(REG_ITMP1, REG_ITMP2, OFFSET(vftbl_t, baseval));
2307                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2308
2309                                                 CODEGEN_CRITICAL_SECTION_END;
2310
2311                                                 M_SUB(REG_ITMP3, REG_ITMP1, REG_ITMP3);
2312                                                 M_EXTSW(REG_ITMP3, REG_ITMP3);
2313                                         } else {
2314                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, baseval));
2315                                                 M_SUB(REG_ITMP3, REG_ITMP2, REG_ITMP3);
2316                                                 M_EXTSW(REG_ITMP3, REG_ITMP3);
2317                                                 M_ALD(REG_ITMP2, REG_PV, disp);
2318                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2319
2320                                                 CODEGEN_CRITICAL_SECTION_END;
2321
2322                                         }
2323                                         M_CMPU(REG_ITMP3, REG_ITMP2);
2324                                         emit_classcast_check(cd, iptr, BRANCH_GT, REG_ITMP3, s1);
2325
2326                                         if (super != NULL)
2327                                                 emit_label(cd, BRANCH_LABEL_5);
2328                                 }
2329
2330                                 if (super == NULL) {
2331                                         emit_label(cd, BRANCH_LABEL_1);
2332                                         emit_label(cd, BRANCH_LABEL_4);
2333                                 }
2334                                 d = codegen_reg_of_dst(jd, iptr, s1);
2335
2336                         } else {
2337                                 /* array type cast-check */
2338
2339                                 s1 = emit_load_s1(jd, iptr, REG_A0);
2340                                 M_INTMOVE(s1, REG_A0);
2341
2342
2343                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2344                                         disp = dseg_add_unique_address(cd, NULL);
2345                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
2346                                                                                 iptr->sx.s23.s3.c.ref,
2347                                                                                 disp);
2348                                 } else {
2349                                         disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2350                                 }
2351
2352                                 M_ALD(REG_A1, REG_PV, disp);
2353                                 disp = dseg_add_functionptr(cd, BUILTIN_arraycheckcast);
2354                                 M_ALD(REG_ITMP2, REG_PV, disp);
2355                                 M_ALD(REG_ITMP2, REG_ITMP2, 0); /* TOC */
2356                                 M_MTCTR(REG_ITMP2);
2357                                 M_JSR;
2358                                 M_TST(REG_RESULT);
2359                                 emit_classcast_check(cd, iptr, BRANCH_EQ, REG_RESULT, s1);
2360
2361                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2362                                 d = codegen_reg_of_dst(jd, iptr, s1);
2363                         }
2364                         M_INTMOVE(s1, d);
2365                         emit_store_dst(jd, iptr, d);
2366                         break;
2367
2368
2369                 case ICMD_INSTANCEOF: /* ..., objectref ==> ..., intresult            */
2370                                       /* val.a: (classinfo*) superclass               */
2371
2372                         /*  superclass is an interface:
2373                          *
2374                          *  return (sub != NULL) &&
2375                          *         (sub->vftbl->interfacetablelength > super->index) &&
2376                          *         (sub->vftbl->interfacetable[-super->index] != NULL);
2377                          *
2378                          *  superclass is a class:
2379                          *
2380                          *  return ((sub != NULL) && (0
2381                          *          <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2382                          *          super->vftbl->diffvall));
2383                          */
2384
2385                         {
2386                         classinfo *super;
2387                         s4         superindex;
2388
2389                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2390                                 super      = NULL;
2391                                 superindex = 0;
2392                         }
2393                         else {
2394                                 super      = iptr->sx.s23.s3.c.cls;
2395                                 superindex = super->index;
2396                         }
2397
2398                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2399                                 CODEGEN_CRITICAL_SECTION_NEW;
2400                         }
2401
2402                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2403                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
2404                         if (s1 == d) {
2405                                 M_MOV(s1, REG_ITMP1);
2406                                 s1 = REG_ITMP1;
2407                         }
2408
2409                         M_CLR(d);
2410
2411                         /* if class is not resolved, check which code to call */
2412
2413                         if (super == NULL) {
2414                                 M_TST(s1);
2415                                 emit_label_beq(cd, BRANCH_LABEL_1);
2416                                 disp = dseg_add_unique_s4(cd, 0);                     /* super->flags */
2417
2418                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_flags,
2419                                                                         iptr->sx.s23.s3.c.ref, disp);
2420
2421                                 M_ILD(REG_ITMP3, REG_PV, disp);
2422                                 M_AND_IMM(REG_ITMP3, ACC_INTERFACE, REG_ITMP3);
2423                                 emit_label_beq(cd, BRANCH_LABEL_2);
2424                         }
2425
2426                         /* interface instanceof code */
2427
2428                         if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2429                                 if (super == NULL) {
2430                                         patcher_add_patch_ref(jd,
2431                                                                                 PATCHER_instanceof_interface,
2432                                                                                 iptr->sx.s23.s3.c.ref, 0);
2433
2434                                 } else {
2435                                         M_TST(s1);
2436                                         emit_label_beq(cd, BRANCH_LABEL_3);
2437                                 }
2438
2439                                 M_ALD(REG_ITMP1, s1, OFFSET(java_object_t, vftbl));
2440                                 M_ILD(REG_ITMP3, REG_ITMP1, OFFSET(vftbl_t, interfacetablelength));
2441                                 M_LDATST(REG_ITMP3, REG_ITMP3, -superindex);
2442                                 M_BLE(4);
2443                                 M_ALD(REG_ITMP1, REG_ITMP1,
2444                                           OFFSET(vftbl_t, interfacetable[0]) -
2445                                           superindex * sizeof(methodptr*));
2446                                 M_TST(REG_ITMP1);
2447                                 M_BEQ(1);
2448                                 M_IADD_IMM(REG_ZERO, 1, d);
2449
2450                                 if (super == NULL)      {
2451                                         emit_label_br(cd, BRANCH_LABEL_4);
2452                                 } else  {
2453                                         emit_label(cd, BRANCH_LABEL_3);
2454                                 }
2455                         }
2456
2457                         /* class instanceof code */
2458
2459                         if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2460
2461                                 if (super == NULL) {
2462                                         emit_label(cd, BRANCH_LABEL_2);
2463
2464                                         disp = dseg_add_unique_address(cd, NULL);
2465                                         patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_vftbl,
2466                                                                                 iptr->sx.s23.s3.c.ref,
2467                                                                                 disp);
2468
2469                                 } else {
2470                                         disp = dseg_add_address(cd, super->vftbl);
2471                                         M_TST(s1);
2472                                         emit_label_beq(cd, BRANCH_LABEL_5);
2473                                 }
2474
2475                                 M_ALD(REG_ITMP1, s1, OFFSET(java_object_t, vftbl));
2476                                 M_ALD(REG_ITMP2, REG_PV, disp);
2477
2478                                 CODEGEN_CRITICAL_SECTION_START;
2479
2480                                 M_ILD(REG_ITMP1, REG_ITMP1, OFFSET(vftbl_t, baseval));
2481                                 M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2482                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2483
2484                                 CODEGEN_CRITICAL_SECTION_END;
2485
2486                                 M_SUB(REG_ITMP1, REG_ITMP3, REG_ITMP1);
2487                                 M_EXTSW(REG_ITMP1, REG_ITMP1);
2488                                 M_CMPU(REG_ITMP1, REG_ITMP2);
2489                                 M_CLR(d);
2490                                 M_BGT(1);
2491                                 M_IADD_IMM(REG_ZERO, 1, d);
2492
2493                                 if (super != NULL)
2494                                         emit_label(cd, BRANCH_LABEL_5);
2495                         }
2496
2497                         if (super == NULL) {
2498                                 emit_label(cd, BRANCH_LABEL_1);
2499                                 emit_label(cd, BRANCH_LABEL_4);
2500                         }
2501
2502                         emit_store_dst(jd, iptr, d);
2503                         }
2504                         break;
2505
2506                 case ICMD_MULTIANEWARRAY:/* ..., cnt1, [cnt2, ...] ==> ..., arrayref  */
2507
2508                         /* check for negative sizes and copy sizes to stack if necessary  */
2509
2510                         MCODECHECK((iptr->s1.argcount << 2) + 128);
2511
2512                         for (s1 = iptr->s1.argcount; --s1 >= 0; ) {
2513
2514                                 var = VAR(iptr->sx.s23.s2.args[s1]);
2515
2516                                 /* copy SAVEDVAR sizes to stack */
2517
2518                                 if (!(var->flags & PREALLOC)) {
2519                                         s2 = emit_load(jd, iptr, var, REG_ITMP1);
2520 #if defined(__DARWIN__)
2521                                         M_LST(s2, REG_SP, LA_SIZE + (s1 + INT_ARG_CNT) * 8);
2522 #else
2523                                         M_LST(s2, REG_SP, LA_SIZE + (s1 + 3) * 8);
2524 #endif
2525                                 }
2526                         }
2527
2528                         /* a0 = dimension count */
2529
2530                         ICONST(REG_A0, iptr->s1.argcount);
2531
2532                         /* is patcher function set? */
2533
2534                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2535                                 disp = dseg_add_unique_address(cd, NULL);
2536
2537                                 patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
2538                                                                         iptr->sx.s23.s3.c.ref, disp);
2539                         } else {
2540                                 disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2541                         }
2542
2543                         /* a1 = arraydescriptor */
2544
2545                         M_ALD(REG_A1, REG_PV, disp);
2546
2547                         /* a2 = pointer to dimensions = stack pointer */
2548
2549 #if defined(__DARWIN__)
2550                         M_LDA(REG_A2, REG_SP, LA_SIZE + INT_ARG_CNT * 8);
2551 #else
2552                         M_LDA(REG_A2, REG_SP, LA_SIZE + 3 * 8);
2553 #endif
2554
2555                         disp = dseg_add_functionptr(cd, BUILTIN_multianewarray);
2556                         M_ALD(REG_ITMP3, REG_PV, disp);
2557                         M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
2558                         M_MTCTR(REG_ITMP3);
2559                         M_JSR;
2560
2561                         /* check for exception before result assignment */
2562                         emit_exception_check(cd, iptr);
2563
2564                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2565                         M_INTMOVE(REG_RESULT, d);
2566                         emit_store_dst(jd, iptr, d);
2567                         break;
2568
2569                 default:
2570                         exceptions_throw_internalerror("Unknown ICMD %d during code generation",
2571                                                                                    iptr->opc);
2572                         return false;
2573         } /* switch */
2574
2575         } /* for instruction */
2576
2577         } /* if (bptr -> flags >= BBREACHED) */
2578         } /* for basic block */
2579
2580         dseg_createlinenumbertable(cd);
2581
2582         /* generate traps */
2583
2584         emit_patcher_traps(jd);
2585
2586         /* everything's ok */
2587
2588         return true;
2589 }
2590
2591
2592 /* codegen_emit_stub_native ****************************************************
2593
2594    Emits a stub routine which calls a native method.
2595
2596 *******************************************************************************/
2597
2598 void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f, int skipparams)
2599 {
2600         methodinfo  *m;
2601         codeinfo    *code;
2602         codegendata *cd;
2603         methoddesc  *md;
2604         s4           i, j;
2605         s4           t;
2606         int          s1, s2;
2607         int          disp;
2608
2609         /* get required compiler data */
2610
2611         m    = jd->m;
2612         code = jd->code;
2613         cd   = jd->cd;
2614
2615         /* set some variables */
2616
2617         md = m->parseddesc;
2618
2619         /* calculate stackframe size */
2620
2621         cd->stackframesize =
2622                 sizeof(stackframeinfo_t) / SIZEOF_VOID_P +
2623                 sizeof(localref_table) / SIZEOF_VOID_P +
2624                 4 +                            /* 4 stackframeinfo arguments (darwin)*/
2625                 nmd->paramcount  +
2626                 nmd->memuse;
2627
2628 /*      cd->stackframesize = (cd->stackframesize + 3) & ~3;*/ /* keep stack 16-byte aligned */
2629
2630         /* create method header */
2631
2632         (void) dseg_add_unique_address(cd, code);              /* CodeinfoPointer */
2633         (void) dseg_add_unique_s4(cd, cd->stackframesize * 8); /* FrameSize       */
2634         (void) dseg_add_unique_s4(cd, 0);                      /* IsSync          */
2635         (void) dseg_add_unique_s4(cd, 0);                      /* IsLeaf          */
2636         (void) dseg_add_unique_s4(cd, 0);                      /* IntSave         */
2637         (void) dseg_add_unique_s4(cd, 0);                      /* FltSave         */
2638         (void) dseg_addlinenumbertablesize(cd);
2639         (void) dseg_add_unique_s4(cd, 0);                      /* ExTableSize     */
2640
2641         /* generate code */
2642
2643         M_MFLR(REG_ZERO);
2644         M_AST_INTERN(REG_ZERO, REG_SP, LA_LR_OFFSET);
2645         M_STDU(REG_SP, REG_SP, -(cd->stackframesize * 8));
2646
2647         /* save integer and float argument registers */
2648
2649         for (i = 0; i < md->paramcount; i++) {
2650                 if (!md->params[i].inmemory) {
2651                         s1 = md->params[i].regoff;
2652
2653                         switch (md->paramtypes[i].type) {
2654                         case TYPE_INT:
2655                         case TYPE_LNG:
2656                         case TYPE_ADR:
2657                                 M_LST(s1, REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + i * 8);
2658                                 break;
2659                         case TYPE_FLT:
2660                         case TYPE_DBL:
2661                                 M_DST(s1, REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + i * 8);
2662                                 break;
2663                         }
2664                 }
2665         }
2666
2667         /* create native stack info */
2668
2669         M_MOV(REG_SP, REG_A0);
2670         M_MOV(REG_PV, REG_A1);
2671         disp = dseg_add_functionptr(cd, codegen_start_native_call);
2672         M_ALD(REG_ITMP1, REG_PV, disp);
2673         M_ALD(REG_ITMP1, REG_ITMP1, 0);         /* TOC */
2674         M_MTCTR(REG_ITMP1);
2675         M_JSR;
2676
2677         /* remember class argument */
2678
2679         if (m->flags & ACC_STATIC)
2680                 M_MOV(REG_RESULT, REG_ITMP3);
2681
2682         /* restore integer and float argument registers */
2683
2684         for (i = 0; i < md->paramcount; i++) {
2685                 if (!md->params[i].inmemory) {
2686                         s1 = md->params[i].regoff;
2687
2688                         switch (md->paramtypes[i].type) {
2689                         case TYPE_INT:
2690                         case TYPE_LNG:
2691                         case TYPE_ADR:
2692                                 M_LLD(s1, REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + i * 8);
2693                                 break;
2694                         case TYPE_FLT:
2695                         case TYPE_DBL:
2696                                 M_DLD(s1, REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + i * 8);
2697                                 break;
2698                         }
2699                 }
2700         }
2701
2702         /* copy or spill arguments to new locations */
2703
2704         for (i = md->paramcount - 1, j = i + skipparams; i >= 0; i--, j--) {
2705                 t = md->paramtypes[i].type;
2706
2707                 if (IS_INT_LNG_TYPE(t)) {
2708                         if (!md->params[i].inmemory) {
2709                                 s1 = md->params[i].regoff;
2710                                 s2 = nmd->params[j].regoff;
2711
2712                                 if (!nmd->params[j].inmemory)
2713                                         M_INTMOVE(s1, s2);
2714                                 else
2715                                         M_LST(s1, REG_SP, s2);
2716                         }
2717                         else {
2718                                 s1 = md->params[i].regoff + cd->stackframesize * 8;
2719                                 s2 = nmd->params[j].regoff;
2720
2721                                 M_LLD(REG_ITMP1, REG_SP, s1);
2722                                 M_LST(REG_ITMP1, REG_SP, s2);
2723                         }
2724                 }
2725                 else {
2726                         /* We only copy spilled float arguments, as the float
2727                            argument registers keep unchanged. */
2728
2729                         if (md->params[i].inmemory) {
2730                                 s1 = md->params[i].regoff + cd->stackframesize * 8;
2731                                 s2 = nmd->params[j].regoff;
2732
2733                                 M_DLD(REG_FTMP1, REG_SP, s1);
2734
2735                                 if (IS_2_WORD_TYPE(t))
2736                                         M_DST(REG_FTMP1, REG_SP, s2);
2737                                 else
2738                                         M_FST(REG_FTMP1, REG_SP, s2 + 4);
2739                         }
2740                 }
2741         }
2742
2743         /* Handle native Java methods. */
2744
2745         if (m->flags & ACC_NATIVE) {
2746                 /* put class into second argument register */
2747
2748                 if (m->flags & ACC_STATIC)
2749                         M_MOV(REG_ITMP3, REG_A1);
2750
2751                 /* put env into first argument register */
2752
2753                 disp = dseg_add_unique_address(cd, _Jv_env);
2754                 M_ALD(REG_A0, REG_PV, disp);
2755         }
2756
2757         /* Call the native function. */
2758         /* native functions have a different TOC for sure */
2759
2760         M_AST(REG_TOC, REG_SP, 40);     /* save old TOC */
2761         disp = dseg_add_functionptr(cd, f);
2762         M_ALD(REG_ITMP3, REG_PV, disp);
2763         M_ALD(REG_TOC, REG_ITMP3, 8);   /* load TOC from func. descriptor */
2764         M_ALD(REG_ITMP3, REG_ITMP3, 0);
2765         M_MTCTR(REG_ITMP3);
2766         M_JSR;
2767         M_ALD(REG_TOC, REG_SP, 40);     /* restore TOC */
2768
2769         /* save return value */
2770
2771         if (md->returntype.type != TYPE_VOID) {
2772                 if (IS_INT_LNG_TYPE(md->returntype.type)) {
2773                         M_LST(REG_RESULT, REG_SP, LA_SIZE + PA_SIZE + 2 * 8);
2774                 }
2775                 else {
2776                         M_DST(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 2 * 8);
2777                 }
2778         }
2779
2780         /* remove native stackframe info */
2781
2782         M_MOV(REG_SP, REG_A0);
2783         M_MOV(REG_PV, REG_A1);
2784         disp = dseg_add_functionptr(cd, codegen_finish_native_call);
2785         M_ALD(REG_ITMP1, REG_PV, disp);
2786         M_ALD(REG_ITMP1, REG_ITMP1, 0); /* XXX what about TOC? */
2787         M_MTCTR(REG_ITMP1);
2788         M_JSR;
2789         M_MOV(REG_RESULT, REG_ITMP1_XPTR);
2790
2791         /* restore return value */
2792
2793         if (md->returntype.type != TYPE_VOID) {
2794                 if (IS_INT_LNG_TYPE(md->returntype.type)) {
2795                         M_LLD(REG_RESULT, REG_SP, LA_SIZE + PA_SIZE + 2 * 8);
2796                 }
2797                 else {
2798                         M_DLD(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 2 * 8);
2799                 }
2800         }
2801
2802         M_ALD(REG_ITMP2_XPC, REG_SP, cd->stackframesize * 8 + LA_LR_OFFSET);
2803         M_MTLR(REG_ITMP2_XPC);
2804         M_LDA(REG_SP, REG_SP, cd->stackframesize * 8); /* remove stackframe           */
2805
2806         /* check for exception */
2807
2808         M_TST(REG_ITMP1_XPTR);
2809         M_BNE(1);                           /* if no exception then return        */
2810
2811         M_RET;
2812
2813         /* handle exception */
2814
2815         M_LADD_IMM(REG_ITMP2_XPC, -4, REG_ITMP2_XPC);  /* exception address       */
2816
2817         disp = dseg_add_functionptr(cd, asm_handle_nat_exception);
2818         M_ALD(REG_ITMP3, REG_PV, disp);
2819         M_MTCTR(REG_ITMP3);
2820         M_RTS;
2821 }
2822
2823
2824
2825
2826 /*
2827  * These are local overrides for various environment variables in Emacs.
2828  * Please do not remove this and leave it at the end of the file, where
2829  * Emacs will automagically detect them.
2830  * ---------------------------------------------------------------------
2831  * Local variables:
2832  * mode: c
2833  * indent-tabs-mode: t
2834  * c-basic-offset: 4
2835  * tab-width: 4
2836  * End:
2837  * vim:noexpandtab:sw=4:ts=4:
2838  */