1 /*
   2  * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 # include "incls/_precompiled.incl"
  26 # include "incls/_c1_LIR.cpp.incl"
  27 
  28 Register LIR_OprDesc::as_register() const {
  29   return FrameMap::cpu_rnr2reg(cpu_regnr());
  30 }
  31 
  32 Register LIR_OprDesc::as_register_lo() const {
  33   return FrameMap::cpu_rnr2reg(cpu_regnrLo());
  34 }
  35 
  36 Register LIR_OprDesc::as_register_hi() const {
  37   return FrameMap::cpu_rnr2reg(cpu_regnrHi());
  38 }
  39 
  40 #if defined(X86)
  41 
  42 XMMRegister LIR_OprDesc::as_xmm_float_reg() const {
  43   return FrameMap::nr2xmmreg(xmm_regnr());
  44 }
  45 
  46 XMMRegister LIR_OprDesc::as_xmm_double_reg() const {
  47   assert(xmm_regnrLo() == xmm_regnrHi(), "assumed in calculation");
  48   return FrameMap::nr2xmmreg(xmm_regnrLo());
  49 }
  50 
  51 #endif // X86
  52 
  53 #if defined(SPARC) || defined(PPC)
  54 
  55 FloatRegister LIR_OprDesc::as_float_reg() const {
  56   return FrameMap::nr2floatreg(fpu_regnr());
  57 }
  58 
  59 FloatRegister LIR_OprDesc::as_double_reg() const {
  60   return FrameMap::nr2floatreg(fpu_regnrHi());
  61 }
  62 
  63 #endif
  64 
  65 #ifdef ARM
  66 
  67 FloatRegister LIR_OprDesc::as_float_reg() const {
  68   return as_FloatRegister(fpu_regnr());
  69 }
  70 
  71 FloatRegister LIR_OprDesc::as_double_reg() const {
  72   return as_FloatRegister(fpu_regnrLo());
  73 }
  74 
  75 #endif
  76 
  77 
  78 LIR_Opr LIR_OprFact::illegalOpr = LIR_OprFact::illegal();
  79 
  80 LIR_Opr LIR_OprFact::value_type(ValueType* type) {
  81   ValueTag tag = type->tag();
  82   switch (tag) {
  83   case objectTag : {
  84     ClassConstant* c = type->as_ClassConstant();
  85     if (c != NULL && !c->value()->is_loaded()) {
  86       return LIR_OprFact::oopConst(NULL);
  87     } else {
  88       return LIR_OprFact::oopConst(type->as_ObjectType()->encoding());
  89     }
  90   }
  91   case addressTag: return LIR_OprFact::addressConst(type->as_AddressConstant()->value());
  92   case intTag    : return LIR_OprFact::intConst(type->as_IntConstant()->value());
  93   case floatTag  : return LIR_OprFact::floatConst(type->as_FloatConstant()->value());
  94   case longTag   : return LIR_OprFact::longConst(type->as_LongConstant()->value());
  95   case doubleTag : return LIR_OprFact::doubleConst(type->as_DoubleConstant()->value());
  96   default: ShouldNotReachHere(); return LIR_OprFact::intConst(-1);
  97   }
  98 }
  99 
 100 
 101 LIR_Opr LIR_OprFact::dummy_value_type(ValueType* type) {
 102   switch (type->tag()) {
 103     case objectTag: return LIR_OprFact::oopConst(NULL);
 104     case addressTag:return LIR_OprFact::addressConst(0);
 105     case intTag:    return LIR_OprFact::intConst(0);
 106     case floatTag:  return LIR_OprFact::floatConst(0.0);
 107     case longTag:   return LIR_OprFact::longConst(0);
 108     case doubleTag: return LIR_OprFact::doubleConst(0.0);
 109     default:        ShouldNotReachHere(); return LIR_OprFact::intConst(-1);
 110   }
 111   return illegalOpr;
 112 }
 113 
 114 
 115 
 116 //---------------------------------------------------
 117 
 118 
 119 LIR_Address::Scale LIR_Address::scale(BasicType type) {
 120   int elem_size = type2aelembytes(type);
 121   switch (elem_size) {
 122   case 1: return LIR_Address::times_1;
 123   case 2: return LIR_Address::times_2;
 124   case 4: return LIR_Address::times_4;
 125   case 8: return LIR_Address::times_8;
 126   }
 127   ShouldNotReachHere();
 128   return LIR_Address::times_1;
 129 }
 130 
 131 
 132 #ifndef PRODUCT
 133 void LIR_Address::verify() const {
 134 #if defined(SPARC) || defined(PPC)
 135   assert(scale() == times_1, "Scaled addressing mode not available on SPARC/PPC and should not be used");
 136   assert(disp() == 0 || index()->is_illegal(), "can't have both");
 137 #endif
 138 #ifdef ARM
 139   assert(disp() == 0 || index()->is_illegal(), "can't have both");
 140   assert(-4096 < disp() && disp() < 4096, "architecture constraint");
 141 #endif
 142 #ifdef _LP64
 143   assert(base()->is_cpu_register(), "wrong base operand");
 144   assert(index()->is_illegal() || index()->is_double_cpu(), "wrong index operand");
 145   assert(base()->type() == T_OBJECT || base()->type() == T_LONG,
 146          "wrong type for addresses");
 147 #else
 148   assert(base()->is_single_cpu(), "wrong base operand");
 149   assert(index()->is_illegal() || index()->is_single_cpu(), "wrong index operand");
 150   assert(base()->type() == T_OBJECT || base()->type() == T_INT,
 151          "wrong type for addresses");
 152 #endif
 153 }
 154 #endif
 155 
 156 
 157 //---------------------------------------------------
 158 
 159 char LIR_OprDesc::type_char(BasicType t) {
 160   switch (t) {
 161     case T_ARRAY:
 162       t = T_OBJECT;
 163     case T_BOOLEAN:
 164     case T_CHAR:
 165     case T_FLOAT:
 166     case T_DOUBLE:
 167     case T_BYTE:
 168     case T_SHORT:
 169     case T_INT:
 170     case T_LONG:
 171     case T_OBJECT:
 172     case T_ADDRESS:
 173     case T_VOID:
 174       return ::type2char(t);
 175 
 176     case T_ILLEGAL:
 177       return '?';
 178 
 179     default:
 180       ShouldNotReachHere();
 181       return '?';
 182   }
 183 }
 184 
 185 #ifndef PRODUCT
 186 void LIR_OprDesc::validate_type() const {
 187 
 188 #ifdef ASSERT
 189   if (!is_pointer() && !is_illegal()) {
 190     switch (as_BasicType(type_field())) {
 191     case T_LONG:
 192       assert((kind_field() == cpu_register || kind_field() == stack_value) &&
 193              size_field() == double_size, "must match");
 194       break;
 195     case T_FLOAT:
 196       // FP return values can be also in CPU registers on ARM and PPC (softfp ABI)
 197       assert((kind_field() == fpu_register || kind_field() == stack_value
 198              ARM_ONLY(|| kind_field() == cpu_register)
 199              PPC_ONLY(|| kind_field() == cpu_register) ) &&
 200              size_field() == single_size, "must match");
 201       break;
 202     case T_DOUBLE:
 203       // FP return values can be also in CPU registers on ARM and PPC (softfp ABI)
 204       assert((kind_field() == fpu_register || kind_field() == stack_value
 205              ARM_ONLY(|| kind_field() == cpu_register)
 206              PPC_ONLY(|| kind_field() == cpu_register) ) &&
 207              size_field() == double_size, "must match");
 208       break;
 209     case T_BOOLEAN:
 210     case T_CHAR:
 211     case T_BYTE:
 212     case T_SHORT:
 213     case T_INT:
 214     case T_OBJECT:
 215     case T_ARRAY:
 216       assert((kind_field() == cpu_register || kind_field() == stack_value) &&
 217              size_field() == single_size, "must match");
 218       break;
 219 
 220     case T_ILLEGAL:
 221       // XXX TKR also means unknown right now
 222       // assert(is_illegal(), "must match");
 223       break;
 224 
 225     default:
 226       ShouldNotReachHere();
 227     }
 228   }
 229 #endif
 230 
 231 }
 232 #endif // PRODUCT
 233 
 234 
 235 bool LIR_OprDesc::is_oop() const {
 236   if (is_pointer()) {
 237     return pointer()->is_oop_pointer();
 238   } else {
 239     OprType t= type_field();
 240     assert(t != unknown_type, "not set");
 241     return t == object_type;
 242   }
 243 }
 244 
 245 
 246 
 247 void LIR_Op2::verify() const {
 248 #ifdef ASSERT
 249   switch (code()) {
 250     case lir_cmove:
 251       break;
 252 
 253     default:
 254       assert(!result_opr()->is_register() || !result_opr()->is_oop_register(),
 255              "can't produce oops from arith");
 256   }
 257 
 258   if (TwoOperandLIRForm) {
 259     switch (code()) {
 260     case lir_add:
 261     case lir_sub:
 262     case lir_mul:
 263     case lir_mul_strictfp:
 264     case lir_div:
 265     case lir_div_strictfp:
 266     case lir_rem:
 267     case lir_logic_and:
 268     case lir_logic_or:
 269     case lir_logic_xor:
 270     case lir_shl:
 271     case lir_shr:
 272       assert(in_opr1() == result_opr(), "opr1 and result must match");
 273       assert(in_opr1()->is_valid() && in_opr2()->is_valid(), "must be valid");
 274       break;
 275 
 276     // special handling for lir_ushr because of write barriers
 277     case lir_ushr:
 278       assert(in_opr1() == result_opr() || in_opr2()->is_constant(), "opr1 and result must match or shift count is constant");
 279       assert(in_opr1()->is_valid() && in_opr2()->is_valid(), "must be valid");
 280       break;
 281 
 282     }
 283   }
 284 #endif
 285 }
 286 
 287 
 288 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, BasicType type, BlockBegin* block)
 289   : LIR_Op(lir_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*)NULL)
 290   , _cond(cond)
 291   , _type(type)
 292   , _label(block->label())
 293   , _block(block)
 294   , _ublock(NULL)
 295   , _stub(NULL) {
 296 }
 297 
 298 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, BasicType type, CodeStub* stub) :
 299   LIR_Op(lir_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*)NULL)
 300   , _cond(cond)
 301   , _type(type)
 302   , _label(stub->entry())
 303   , _block(NULL)
 304   , _ublock(NULL)
 305   , _stub(stub) {
 306 }
 307 
 308 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, BasicType type, BlockBegin* block, BlockBegin* ublock)
 309   : LIR_Op(lir_cond_float_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*)NULL)
 310   , _cond(cond)
 311   , _type(type)
 312   , _label(block->label())
 313   , _block(block)
 314   , _ublock(ublock)
 315   , _stub(NULL)
 316 {
 317 }
 318 
 319 void LIR_OpBranch::change_block(BlockBegin* b) {
 320   assert(_block != NULL, "must have old block");
 321   assert(_block->label() == label(), "must be equal");
 322 
 323   _block = b;
 324   _label = b->label();
 325 }
 326 
 327 void LIR_OpBranch::change_ublock(BlockBegin* b) {
 328   assert(_ublock != NULL, "must have old block");
 329   _ublock = b;
 330 }
 331 
 332 void LIR_OpBranch::negate_cond() {
 333   switch (_cond) {
 334     case lir_cond_equal:        _cond = lir_cond_notEqual;     break;
 335     case lir_cond_notEqual:     _cond = lir_cond_equal;        break;
 336     case lir_cond_less:         _cond = lir_cond_greaterEqual; break;
 337     case lir_cond_lessEqual:    _cond = lir_cond_greater;      break;
 338     case lir_cond_greaterEqual: _cond = lir_cond_less;         break;
 339     case lir_cond_greater:      _cond = lir_cond_lessEqual;    break;
 340     default: ShouldNotReachHere();
 341   }
 342 }
 343 
 344 
 345 LIR_OpTypeCheck::LIR_OpTypeCheck(LIR_Code code, LIR_Opr result, LIR_Opr object, ciKlass* klass,
 346                                  LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3,
 347                                  bool fast_check, CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch,
 348                                  CodeStub* stub,
 349                                  ciMethod* profiled_method,
 350                                  int profiled_bci)
 351   : LIR_Op(code, result, NULL)
 352   , _object(object)
 353   , _array(LIR_OprFact::illegalOpr)
 354   , _klass(klass)
 355   , _tmp1(tmp1)
 356   , _tmp2(tmp2)
 357   , _tmp3(tmp3)
 358   , _fast_check(fast_check)
 359   , _stub(stub)
 360   , _info_for_patch(info_for_patch)
 361   , _info_for_exception(info_for_exception)
 362   , _profiled_method(profiled_method)
 363   , _profiled_bci(profiled_bci) {
 364   if (code == lir_checkcast) {
 365     assert(info_for_exception != NULL, "checkcast throws exceptions");
 366   } else if (code == lir_instanceof) {
 367     assert(info_for_exception == NULL, "instanceof throws no exceptions");
 368   } else {
 369     ShouldNotReachHere();
 370   }
 371 }
 372 
 373 
 374 
 375 LIR_OpTypeCheck::LIR_OpTypeCheck(LIR_Code code, LIR_Opr object, LIR_Opr array, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, CodeEmitInfo* info_for_exception, ciMethod* profiled_method, int profiled_bci)
 376   : LIR_Op(code, LIR_OprFact::illegalOpr, NULL)
 377   , _object(object)
 378   , _array(array)
 379   , _klass(NULL)
 380   , _tmp1(tmp1)
 381   , _tmp2(tmp2)
 382   , _tmp3(tmp3)
 383   , _fast_check(false)
 384   , _stub(NULL)
 385   , _info_for_patch(NULL)
 386   , _info_for_exception(info_for_exception)
 387   , _profiled_method(profiled_method)
 388   , _profiled_bci(profiled_bci) {
 389   if (code == lir_store_check) {
 390     _stub = new ArrayStoreExceptionStub(info_for_exception);
 391     assert(info_for_exception != NULL, "store_check throws exceptions");
 392   } else {
 393     ShouldNotReachHere();
 394   }
 395 }
 396 
 397 
 398 LIR_OpArrayCopy::LIR_OpArrayCopy(LIR_Opr src, LIR_Opr src_pos, LIR_Opr dst, LIR_Opr dst_pos, LIR_Opr length,
 399                                  LIR_Opr tmp, ciArrayKlass* expected_type, int flags, CodeEmitInfo* info)
 400   : LIR_Op(lir_arraycopy, LIR_OprFact::illegalOpr, info)
 401   , _tmp(tmp)
 402   , _src(src)
 403   , _src_pos(src_pos)
 404   , _dst(dst)
 405   , _dst_pos(dst_pos)
 406   , _flags(flags)
 407   , _expected_type(expected_type)
 408   , _length(length) {
 409   _stub = new ArrayCopyStub(this);
 410 }
 411 
 412 
 413 //-------------------verify--------------------------
 414 
 415 void LIR_Op1::verify() const {
 416   switch(code()) {
 417   case lir_move:
 418     assert(in_opr()->is_valid() && result_opr()->is_valid(), "must be");
 419     break;
 420   case lir_null_check:
 421     assert(in_opr()->is_register(), "must be");
 422     break;
 423   case lir_return:
 424     assert(in_opr()->is_register() || in_opr()->is_illegal(), "must be");
 425     break;
 426   }
 427 }
 428 
 429 void LIR_OpRTCall::verify() const {
 430   assert(strcmp(Runtime1::name_for_address(addr()), "<unknown function>") != 0, "unknown function");
 431 }
 432 
 433 //-------------------visits--------------------------
 434 
 435 // complete rework of LIR instruction visitor.
 436 // The virtual calls for each instruction type is replaced by a big
 437 // switch that adds the operands for each instruction
 438 
 439 void LIR_OpVisitState::visit(LIR_Op* op) {
 440   // copy information from the LIR_Op
 441   reset();
 442   set_op(op);
 443 
 444   switch (op->code()) {
 445 
 446 // LIR_Op0
 447     case lir_word_align:               // result and info always invalid
 448     case lir_backwardbranch_target:    // result and info always invalid
 449     case lir_build_frame:              // result and info always invalid
 450     case lir_fpop_raw:                 // result and info always invalid
 451     case lir_24bit_FPU:                // result and info always invalid
 452     case lir_reset_FPU:                // result and info always invalid
 453     case lir_breakpoint:               // result and info always invalid
 454     case lir_membar:                   // result and info always invalid
 455     case lir_membar_acquire:           // result and info always invalid
 456     case lir_membar_release:           // result and info always invalid
 457     {
 458       assert(op->as_Op0() != NULL, "must be");
 459       assert(op->_info == NULL, "info not used by this instruction");
 460       assert(op->_result->is_illegal(), "not used");
 461       break;
 462     }
 463 
 464     case lir_nop:                      // may have info, result always invalid
 465     case lir_std_entry:                // may have result, info always invalid
 466     case lir_osr_entry:                // may have result, info always invalid
 467     case lir_get_thread:               // may have result, info always invalid
 468     {
 469       assert(op->as_Op0() != NULL, "must be");
 470       if (op->_info != NULL)           do_info(op->_info);
 471       if (op->_result->is_valid())     do_output(op->_result);
 472       break;
 473     }
 474 
 475 
 476 // LIR_OpLabel
 477     case lir_label:                    // result and info always invalid
 478     {
 479       assert(op->as_OpLabel() != NULL, "must be");
 480       assert(op->_info == NULL, "info not used by this instruction");
 481       assert(op->_result->is_illegal(), "not used");
 482       break;
 483     }
 484 
 485 
 486 // LIR_Op1
 487     case lir_fxch:           // input always valid, result and info always invalid
 488     case lir_fld:            // input always valid, result and info always invalid
 489     case lir_ffree:          // input always valid, result and info always invalid
 490     case lir_push:           // input always valid, result and info always invalid
 491     case lir_pop:            // input always valid, result and info always invalid
 492     case lir_return:         // input always valid, result and info always invalid
 493     case lir_leal:           // input and result always valid, info always invalid
 494     case lir_neg:            // input and result always valid, info always invalid
 495     case lir_monaddr:        // input and result always valid, info always invalid
 496     case lir_null_check:     // input and info always valid, result always invalid
 497     case lir_move:           // input and result always valid, may have info
 498     case lir_prefetchr:      // input always valid, result and info always invalid
 499     case lir_prefetchw:      // input always valid, result and info always invalid
 500     {
 501       assert(op->as_Op1() != NULL, "must be");
 502       LIR_Op1* op1 = (LIR_Op1*)op;
 503 
 504       if (op1->_info)                  do_info(op1->_info);
 505       if (op1->_opr->is_valid())       do_input(op1->_opr);
 506       if (op1->_result->is_valid())    do_output(op1->_result);
 507 
 508       break;
 509     }
 510 
 511     case lir_safepoint:
 512     {
 513       assert(op->as_Op1() != NULL, "must be");
 514       LIR_Op1* op1 = (LIR_Op1*)op;
 515 
 516       assert(op1->_info != NULL, "");  do_info(op1->_info);
 517       if (op1->_opr->is_valid())       do_temp(op1->_opr); // safepoints on SPARC need temporary register
 518       assert(op1->_result->is_illegal(), "safepoint does not produce value");
 519 
 520       break;
 521     }
 522 
 523 // LIR_OpConvert;
 524     case lir_convert:        // input and result always valid, info always invalid
 525     {
 526       assert(op->as_OpConvert() != NULL, "must be");
 527       LIR_OpConvert* opConvert = (LIR_OpConvert*)op;
 528 
 529       assert(opConvert->_info == NULL, "must be");
 530       if (opConvert->_opr->is_valid())       do_input(opConvert->_opr);
 531       if (opConvert->_result->is_valid())    do_output(opConvert->_result);
 532 #ifdef PPC
 533       if (opConvert->_tmp1->is_valid())      do_temp(opConvert->_tmp1);
 534       if (opConvert->_tmp2->is_valid())      do_temp(opConvert->_tmp2);
 535 #endif
 536       do_stub(opConvert->_stub);
 537 
 538       break;
 539     }
 540 
 541 // LIR_OpBranch;
 542     case lir_branch:                   // may have info, input and result register always invalid
 543     case lir_cond_float_branch:        // may have info, input and result register always invalid
 544     {
 545       assert(op->as_OpBranch() != NULL, "must be");
 546       LIR_OpBranch* opBranch = (LIR_OpBranch*)op;
 547 
 548       if (opBranch->_info != NULL)     do_info(opBranch->_info);
 549       assert(opBranch->_result->is_illegal(), "not used");
 550       if (opBranch->_stub != NULL)     opBranch->stub()->visit(this);
 551 
 552       break;
 553     }
 554 
 555 
 556 // LIR_OpAllocObj
 557     case lir_alloc_object:
 558     {
 559       assert(op->as_OpAllocObj() != NULL, "must be");
 560       LIR_OpAllocObj* opAllocObj = (LIR_OpAllocObj*)op;
 561 
 562       if (opAllocObj->_info)                     do_info(opAllocObj->_info);
 563       if (opAllocObj->_opr->is_valid()) {        do_input(opAllocObj->_opr);
 564                                                  do_temp(opAllocObj->_opr);
 565                                         }
 566       if (opAllocObj->_tmp1->is_valid())         do_temp(opAllocObj->_tmp1);
 567       if (opAllocObj->_tmp2->is_valid())         do_temp(opAllocObj->_tmp2);
 568       if (opAllocObj->_tmp3->is_valid())         do_temp(opAllocObj->_tmp3);
 569       if (opAllocObj->_tmp4->is_valid())         do_temp(opAllocObj->_tmp4);
 570       if (opAllocObj->_result->is_valid())       do_output(opAllocObj->_result);
 571                                                  do_stub(opAllocObj->_stub);
 572       break;
 573     }
 574 
 575 
 576 // LIR_OpRoundFP;
 577     case lir_roundfp: {
 578       assert(op->as_OpRoundFP() != NULL, "must be");
 579       LIR_OpRoundFP* opRoundFP = (LIR_OpRoundFP*)op;
 580 
 581       assert(op->_info == NULL, "info not used by this instruction");
 582       assert(opRoundFP->_tmp->is_illegal(), "not used");
 583       do_input(opRoundFP->_opr);
 584       do_output(opRoundFP->_result);
 585 
 586       break;
 587     }
 588 
 589 
 590 // LIR_Op2
 591     case lir_cmp:
 592     case lir_cmp_l2i:
 593     case lir_ucmp_fd2i:
 594     case lir_cmp_fd2i:
 595     case lir_add:
 596     case lir_sub:
 597     case lir_mul:
 598     case lir_div:
 599     case lir_rem:
 600     case lir_sqrt:
 601     case lir_abs:
 602     case lir_logic_and:
 603     case lir_logic_or:
 604     case lir_logic_xor:
 605     case lir_shl:
 606     case lir_shr:
 607     case lir_ushr:
 608     {
 609       assert(op->as_Op2() != NULL, "must be");
 610       LIR_Op2* op2 = (LIR_Op2*)op;
 611 
 612       if (op2->_info)                     do_info(op2->_info);
 613       if (op2->_opr1->is_valid())         do_input(op2->_opr1);
 614       if (op2->_opr2->is_valid())         do_input(op2->_opr2);
 615       if (op2->_tmp->is_valid())          do_temp(op2->_tmp);
 616       if (op2->_result->is_valid())       do_output(op2->_result);
 617 
 618       break;
 619     }
 620 
 621     // special handling for cmove: right input operand must not be equal
 622     // to the result operand, otherwise the backend fails
 623     case lir_cmove:
 624     {
 625       assert(op->as_Op2() != NULL, "must be");
 626       LIR_Op2* op2 = (LIR_Op2*)op;
 627 
 628       assert(op2->_info == NULL && op2->_tmp->is_illegal(), "not used");
 629       assert(op2->_opr1->is_valid() && op2->_opr2->is_valid() && op2->_result->is_valid(), "used");
 630 
 631       do_input(op2->_opr1);
 632       do_input(op2->_opr2);
 633       do_temp(op2->_opr2);
 634       do_output(op2->_result);
 635 
 636       break;
 637     }
 638 
 639     // vspecial handling for strict operations: register input operands
 640     // as temp to guarantee that they do not overlap with other
 641     // registers
 642     case lir_mul_strictfp:
 643     case lir_div_strictfp:
 644     {
 645       assert(op->as_Op2() != NULL, "must be");
 646       LIR_Op2* op2 = (LIR_Op2*)op;
 647 
 648       assert(op2->_info == NULL, "not used");
 649       assert(op2->_opr1->is_valid(), "used");
 650       assert(op2->_opr2->is_valid(), "used");
 651       assert(op2->_result->is_valid(), "used");
 652 
 653       do_input(op2->_opr1); do_temp(op2->_opr1);
 654       do_input(op2->_opr2); do_temp(op2->_opr2);
 655       if (op2->_tmp->is_valid()) do_temp(op2->_tmp);
 656       do_output(op2->_result);
 657 
 658       break;
 659     }
 660 
 661     case lir_throw: {
 662       assert(op->as_Op2() != NULL, "must be");
 663       LIR_Op2* op2 = (LIR_Op2*)op;
 664 
 665       if (op2->_info)                     do_info(op2->_info);
 666       if (op2->_opr1->is_valid())         do_temp(op2->_opr1);
 667       if (op2->_opr2->is_valid())         do_input(op2->_opr2); // exception object is input parameter
 668       assert(op2->_result->is_illegal(), "no result");
 669 
 670       break;
 671     }
 672 
 673     case lir_unwind: {
 674       assert(op->as_Op1() != NULL, "must be");
 675       LIR_Op1* op1 = (LIR_Op1*)op;
 676 
 677       assert(op1->_info == NULL, "no info");
 678       assert(op1->_opr->is_valid(), "exception oop");         do_input(op1->_opr);
 679       assert(op1->_result->is_illegal(), "no result");
 680 
 681       break;
 682     }
 683 
 684 
 685     case lir_tan:
 686     case lir_sin:
 687     case lir_cos:
 688     case lir_log:
 689     case lir_log10: {
 690       assert(op->as_Op2() != NULL, "must be");
 691       LIR_Op2* op2 = (LIR_Op2*)op;
 692 
 693       // On x86 tan/sin/cos need two temporary fpu stack slots and
 694       // log/log10 need one so handle opr2 and tmp as temp inputs.
 695       // Register input operand as temp to guarantee that it doesn't
 696       // overlap with the input.
 697       assert(op2->_info == NULL, "not used");
 698       assert(op2->_opr1->is_valid(), "used");
 699       do_input(op2->_opr1); do_temp(op2->_opr1);
 700 
 701       if (op2->_opr2->is_valid())         do_temp(op2->_opr2);
 702       if (op2->_tmp->is_valid())          do_temp(op2->_tmp);
 703       if (op2->_result->is_valid())       do_output(op2->_result);
 704 
 705       break;
 706     }
 707 
 708 
 709 // LIR_Op3
 710     case lir_idiv:
 711     case lir_irem: {
 712       assert(op->as_Op3() != NULL, "must be");
 713       LIR_Op3* op3= (LIR_Op3*)op;
 714 
 715       if (op3->_info)                     do_info(op3->_info);
 716       if (op3->_opr1->is_valid())         do_input(op3->_opr1);
 717 
 718       // second operand is input and temp, so ensure that second operand
 719       // and third operand get not the same register
 720       if (op3->_opr2->is_valid())         do_input(op3->_opr2);
 721       if (op3->_opr2->is_valid())         do_temp(op3->_opr2);
 722       if (op3->_opr3->is_valid())         do_temp(op3->_opr3);
 723 
 724       if (op3->_result->is_valid())       do_output(op3->_result);
 725 
 726       break;
 727     }
 728 
 729 
 730 // LIR_OpJavaCall
 731     case lir_static_call:
 732     case lir_optvirtual_call:
 733     case lir_icvirtual_call:
 734     case lir_virtual_call:
 735     case lir_dynamic_call: {
 736       LIR_OpJavaCall* opJavaCall = op->as_OpJavaCall();
 737       assert(opJavaCall != NULL, "must be");
 738 
 739       if (opJavaCall->_receiver->is_valid())     do_input(opJavaCall->_receiver);
 740 
 741       // only visit register parameters
 742       int n = opJavaCall->_arguments->length();
 743       for (int i = 0; i < n; i++) {
 744         if (!opJavaCall->_arguments->at(i)->is_pointer()) {
 745           do_input(*opJavaCall->_arguments->adr_at(i));
 746         }
 747       }
 748 
 749       if (opJavaCall->_info)                     do_info(opJavaCall->_info);
 750       if (opJavaCall->is_method_handle_invoke()) {
 751         opJavaCall->_method_handle_invoke_SP_save_opr = FrameMap::method_handle_invoke_SP_save_opr();
 752         do_temp(opJavaCall->_method_handle_invoke_SP_save_opr);
 753       }
 754       do_call();
 755       if (opJavaCall->_result->is_valid())       do_output(opJavaCall->_result);
 756 
 757       break;
 758     }
 759 
 760 
 761 // LIR_OpRTCall
 762     case lir_rtcall: {
 763       assert(op->as_OpRTCall() != NULL, "must be");
 764       LIR_OpRTCall* opRTCall = (LIR_OpRTCall*)op;
 765 
 766       // only visit register parameters
 767       int n = opRTCall->_arguments->length();
 768       for (int i = 0; i < n; i++) {
 769         if (!opRTCall->_arguments->at(i)->is_pointer()) {
 770           do_input(*opRTCall->_arguments->adr_at(i));
 771         }
 772       }
 773       if (opRTCall->_info)                     do_info(opRTCall->_info);
 774       if (opRTCall->_tmp->is_valid())          do_temp(opRTCall->_tmp);
 775       do_call();
 776       if (opRTCall->_result->is_valid())       do_output(opRTCall->_result);
 777 
 778       break;
 779     }
 780 
 781 
 782 // LIR_OpArrayCopy
 783     case lir_arraycopy: {
 784       assert(op->as_OpArrayCopy() != NULL, "must be");
 785       LIR_OpArrayCopy* opArrayCopy = (LIR_OpArrayCopy*)op;
 786 
 787       assert(opArrayCopy->_result->is_illegal(), "unused");
 788       assert(opArrayCopy->_src->is_valid(), "used");          do_input(opArrayCopy->_src);     do_temp(opArrayCopy->_src);
 789       assert(opArrayCopy->_src_pos->is_valid(), "used");      do_input(opArrayCopy->_src_pos); do_temp(opArrayCopy->_src_pos);
 790       assert(opArrayCopy->_dst->is_valid(), "used");          do_input(opArrayCopy->_dst);     do_temp(opArrayCopy->_dst);
 791       assert(opArrayCopy->_dst_pos->is_valid(), "used");      do_input(opArrayCopy->_dst_pos); do_temp(opArrayCopy->_dst_pos);
 792       assert(opArrayCopy->_length->is_valid(), "used");       do_input(opArrayCopy->_length);  do_temp(opArrayCopy->_length);
 793       assert(opArrayCopy->_tmp->is_valid(), "used");          do_temp(opArrayCopy->_tmp);
 794       if (opArrayCopy->_info)                     do_info(opArrayCopy->_info);
 795 
 796       // the implementation of arraycopy always has a call into the runtime
 797       do_call();
 798 
 799       break;
 800     }
 801 
 802 
 803 // LIR_OpLock
 804     case lir_lock:
 805     case lir_unlock: {
 806       assert(op->as_OpLock() != NULL, "must be");
 807       LIR_OpLock* opLock = (LIR_OpLock*)op;
 808 
 809       if (opLock->_info)                          do_info(opLock->_info);
 810 
 811       // TODO: check if these operands really have to be temp
 812       // (or if input is sufficient). This may have influence on the oop map!
 813       assert(opLock->_lock->is_valid(), "used");  do_temp(opLock->_lock);
 814       assert(opLock->_hdr->is_valid(),  "used");  do_temp(opLock->_hdr);
 815       assert(opLock->_obj->is_valid(),  "used");  do_temp(opLock->_obj);
 816 
 817       if (opLock->_scratch->is_valid())           do_temp(opLock->_scratch);
 818       assert(opLock->_result->is_illegal(), "unused");
 819 
 820       do_stub(opLock->_stub);
 821 
 822       break;
 823     }
 824 
 825 
 826 // LIR_OpDelay
 827     case lir_delay_slot: {
 828       assert(op->as_OpDelay() != NULL, "must be");
 829       LIR_OpDelay* opDelay = (LIR_OpDelay*)op;
 830 
 831       visit(opDelay->delay_op());
 832       break;
 833     }
 834 
 835 // LIR_OpTypeCheck
 836     case lir_instanceof:
 837     case lir_checkcast:
 838     case lir_store_check: {
 839       assert(op->as_OpTypeCheck() != NULL, "must be");
 840       LIR_OpTypeCheck* opTypeCheck = (LIR_OpTypeCheck*)op;
 841 
 842       if (opTypeCheck->_info_for_exception)       do_info(opTypeCheck->_info_for_exception);
 843       if (opTypeCheck->_info_for_patch)           do_info(opTypeCheck->_info_for_patch);
 844       if (opTypeCheck->_object->is_valid())       do_input(opTypeCheck->_object);
 845       if (opTypeCheck->_array->is_valid())        do_input(opTypeCheck->_array);
 846       if (opTypeCheck->_tmp1->is_valid())         do_temp(opTypeCheck->_tmp1);
 847       if (opTypeCheck->_tmp2->is_valid())         do_temp(opTypeCheck->_tmp2);
 848       if (opTypeCheck->_tmp3->is_valid())         do_temp(opTypeCheck->_tmp3);
 849       if (opTypeCheck->_result->is_valid())       do_output(opTypeCheck->_result);
 850                                                   do_stub(opTypeCheck->_stub);
 851       break;
 852     }
 853 
 854 // LIR_OpCompareAndSwap
 855     case lir_cas_long:
 856     case lir_cas_obj:
 857     case lir_cas_int: {
 858       assert(op->as_OpCompareAndSwap() != NULL, "must be");
 859       LIR_OpCompareAndSwap* opCompareAndSwap = (LIR_OpCompareAndSwap*)op;
 860 
 861       assert(opCompareAndSwap->_addr->is_valid(),      "used");
 862       assert(opCompareAndSwap->_cmp_value->is_valid(), "used");
 863       assert(opCompareAndSwap->_new_value->is_valid(), "used");
 864       if (opCompareAndSwap->_info)                    do_info(opCompareAndSwap->_info);
 865                                                       do_input(opCompareAndSwap->_addr);
 866                                                       do_temp(opCompareAndSwap->_addr);
 867                                                       do_input(opCompareAndSwap->_cmp_value);
 868                                                       do_temp(opCompareAndSwap->_cmp_value);
 869                                                       do_input(opCompareAndSwap->_new_value);
 870                                                       do_temp(opCompareAndSwap->_new_value);
 871       if (opCompareAndSwap->_tmp1->is_valid())        do_temp(opCompareAndSwap->_tmp1);
 872       if (opCompareAndSwap->_tmp2->is_valid())        do_temp(opCompareAndSwap->_tmp2);
 873       if (opCompareAndSwap->_result->is_valid())      do_output(opCompareAndSwap->_result);
 874 
 875       break;
 876     }
 877 
 878 
 879 // LIR_OpAllocArray;
 880     case lir_alloc_array: {
 881       assert(op->as_OpAllocArray() != NULL, "must be");
 882       LIR_OpAllocArray* opAllocArray = (LIR_OpAllocArray*)op;
 883 
 884       if (opAllocArray->_info)                        do_info(opAllocArray->_info);
 885       if (opAllocArray->_klass->is_valid())           do_input(opAllocArray->_klass); do_temp(opAllocArray->_klass);
 886       if (opAllocArray->_len->is_valid())             do_input(opAllocArray->_len);   do_temp(opAllocArray->_len);
 887       if (opAllocArray->_tmp1->is_valid())            do_temp(opAllocArray->_tmp1);
 888       if (opAllocArray->_tmp2->is_valid())            do_temp(opAllocArray->_tmp2);
 889       if (opAllocArray->_tmp3->is_valid())            do_temp(opAllocArray->_tmp3);
 890       if (opAllocArray->_tmp4->is_valid())            do_temp(opAllocArray->_tmp4);
 891       if (opAllocArray->_result->is_valid())          do_output(opAllocArray->_result);
 892                                                       do_stub(opAllocArray->_stub);
 893       break;
 894     }
 895 
 896 // LIR_OpProfileCall:
 897     case lir_profile_call: {
 898       assert(op->as_OpProfileCall() != NULL, "must be");
 899       LIR_OpProfileCall* opProfileCall = (LIR_OpProfileCall*)op;
 900 
 901       if (opProfileCall->_recv->is_valid())              do_temp(opProfileCall->_recv);
 902       assert(opProfileCall->_mdo->is_valid(), "used");   do_temp(opProfileCall->_mdo);
 903       assert(opProfileCall->_tmp1->is_valid(), "used");  do_temp(opProfileCall->_tmp1);
 904       break;
 905     }
 906 
 907   default:
 908     ShouldNotReachHere();
 909   }
 910 }
 911 
 912 
 913 void LIR_OpVisitState::do_stub(CodeStub* stub) {
 914   if (stub != NULL) {
 915     stub->visit(this);
 916   }
 917 }
 918 
 919 XHandlers* LIR_OpVisitState::all_xhandler() {
 920   XHandlers* result = NULL;
 921 
 922   int i;
 923   for (i = 0; i < info_count(); i++) {
 924     if (info_at(i)->exception_handlers() != NULL) {
 925       result = info_at(i)->exception_handlers();
 926       break;
 927     }
 928   }
 929 
 930 #ifdef ASSERT
 931   for (i = 0; i < info_count(); i++) {
 932     assert(info_at(i)->exception_handlers() == NULL ||
 933            info_at(i)->exception_handlers() == result,
 934            "only one xhandler list allowed per LIR-operation");
 935   }
 936 #endif
 937 
 938   if (result != NULL) {
 939     return result;
 940   } else {
 941     return new XHandlers();
 942   }
 943 
 944   return result;
 945 }
 946 
 947 
 948 #ifdef ASSERT
 949 bool LIR_OpVisitState::no_operands(LIR_Op* op) {
 950   visit(op);
 951 
 952   return opr_count(inputMode) == 0 &&
 953          opr_count(outputMode) == 0 &&
 954          opr_count(tempMode) == 0 &&
 955          info_count() == 0 &&
 956          !has_call() &&
 957          !has_slow_case();
 958 }
 959 #endif
 960 
 961 //---------------------------------------------------
 962 
 963 
 964 void LIR_OpJavaCall::emit_code(LIR_Assembler* masm) {
 965   masm->emit_call(this);
 966 }
 967 
 968 void LIR_OpRTCall::emit_code(LIR_Assembler* masm) {
 969   masm->emit_rtcall(this);
 970 }
 971 
 972 void LIR_OpLabel::emit_code(LIR_Assembler* masm) {
 973   masm->emit_opLabel(this);
 974 }
 975 
 976 void LIR_OpArrayCopy::emit_code(LIR_Assembler* masm) {
 977   masm->emit_arraycopy(this);
 978   masm->emit_code_stub(stub());
 979 }
 980 
 981 void LIR_Op0::emit_code(LIR_Assembler* masm) {
 982   masm->emit_op0(this);
 983 }
 984 
 985 void LIR_Op1::emit_code(LIR_Assembler* masm) {
 986   masm->emit_op1(this);
 987 }
 988 
 989 void LIR_OpAllocObj::emit_code(LIR_Assembler* masm) {
 990   masm->emit_alloc_obj(this);
 991   masm->emit_code_stub(stub());
 992 }
 993 
 994 void LIR_OpBranch::emit_code(LIR_Assembler* masm) {
 995   masm->emit_opBranch(this);
 996   if (stub()) {
 997     masm->emit_code_stub(stub());
 998   }
 999 }
1000 
1001 void LIR_OpConvert::emit_code(LIR_Assembler* masm) {
1002   masm->emit_opConvert(this);
1003   if (stub() != NULL) {
1004     masm->emit_code_stub(stub());
1005   }
1006 }
1007 
1008 void LIR_Op2::emit_code(LIR_Assembler* masm) {
1009   masm->emit_op2(this);
1010 }
1011 
1012 void LIR_OpAllocArray::emit_code(LIR_Assembler* masm) {
1013   masm->emit_alloc_array(this);
1014   masm->emit_code_stub(stub());
1015 }
1016 
1017 void LIR_OpTypeCheck::emit_code(LIR_Assembler* masm) {
1018   masm->emit_opTypeCheck(this);
1019   if (stub()) {
1020     masm->emit_code_stub(stub());
1021   }
1022 }
1023 
1024 void LIR_OpCompareAndSwap::emit_code(LIR_Assembler* masm) {
1025   masm->emit_compare_and_swap(this);
1026 }
1027 
1028 void LIR_Op3::emit_code(LIR_Assembler* masm) {
1029   masm->emit_op3(this);
1030 }
1031 
1032 void LIR_OpLock::emit_code(LIR_Assembler* masm) {
1033   masm->emit_lock(this);
1034   if (stub()) {
1035     masm->emit_code_stub(stub());
1036   }
1037 }
1038 
1039 
1040 void LIR_OpDelay::emit_code(LIR_Assembler* masm) {
1041   masm->emit_delay(this);
1042 }
1043 
1044 
1045 void LIR_OpProfileCall::emit_code(LIR_Assembler* masm) {
1046   masm->emit_profile_call(this);
1047 }
1048 
1049 
1050 // LIR_List
1051 LIR_List::LIR_List(Compilation* compilation, BlockBegin* block)
1052   : _operations(8)
1053   , _compilation(compilation)
1054 #ifndef PRODUCT
1055   , _block(block)
1056 #endif
1057 #ifdef ASSERT
1058   , _file(NULL)
1059   , _line(0)
1060 #endif
1061 { }
1062 
1063 
1064 #ifdef ASSERT
1065 void LIR_List::set_file_and_line(const char * file, int line) {
1066   const char * f = strrchr(file, '/');
1067   if (f == NULL) f = strrchr(file, '\\');
1068   if (f == NULL) {
1069     f = file;
1070   } else {
1071     f++;
1072   }
1073   _file = f;
1074   _line = line;
1075 }
1076 #endif
1077 
1078 
1079 void LIR_List::append(LIR_InsertionBuffer* buffer) {
1080   assert(this == buffer->lir_list(), "wrong lir list");
1081   const int n = _operations.length();
1082 
1083   if (buffer->number_of_ops() > 0) {
1084     // increase size of instructions list
1085     _operations.at_grow(n + buffer->number_of_ops() - 1, NULL);
1086     // insert ops from buffer into instructions list
1087     int op_index = buffer->number_of_ops() - 1;
1088     int ip_index = buffer->number_of_insertion_points() - 1;
1089     int from_index = n - 1;
1090     int to_index = _operations.length() - 1;
1091     for (; ip_index >= 0; ip_index --) {
1092       int index = buffer->index_at(ip_index);
1093       // make room after insertion point
1094       while (index < from_index) {
1095         _operations.at_put(to_index --, _operations.at(from_index --));
1096       }
1097       // insert ops from buffer
1098       for (int i = buffer->count_at(ip_index); i > 0; i --) {
1099         _operations.at_put(to_index --, buffer->op_at(op_index --));
1100       }
1101     }
1102   }
1103 
1104   buffer->finish();
1105 }
1106 
1107 
1108 void LIR_List::oop2reg_patch(jobject o, LIR_Opr reg, CodeEmitInfo* info) {
1109   append(new LIR_Op1(lir_move, LIR_OprFact::oopConst(o),  reg, T_OBJECT, lir_patch_normal, info));
1110 }
1111 
1112 
1113 void LIR_List::load(LIR_Address* addr, LIR_Opr src, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1114   append(new LIR_Op1(
1115             lir_move,
1116             LIR_OprFact::address(addr),
1117             src,
1118             addr->type(),
1119             patch_code,
1120             info));
1121 }
1122 
1123 
1124 void LIR_List::volatile_load_mem_reg(LIR_Address* address, LIR_Opr dst, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1125   append(new LIR_Op1(
1126             lir_move,
1127             LIR_OprFact::address(address),
1128             dst,
1129             address->type(),
1130             patch_code,
1131             info, lir_move_volatile));
1132 }
1133 
1134 void LIR_List::volatile_load_unsafe_reg(LIR_Opr base, LIR_Opr offset, LIR_Opr dst, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1135   append(new LIR_Op1(
1136             lir_move,
1137             LIR_OprFact::address(new LIR_Address(base, offset, type)),
1138             dst,
1139             type,
1140             patch_code,
1141             info, lir_move_volatile));
1142 }
1143 
1144 
1145 void LIR_List::prefetch(LIR_Address* addr, bool is_store) {
1146   append(new LIR_Op1(
1147             is_store ? lir_prefetchw : lir_prefetchr,
1148             LIR_OprFact::address(addr)));
1149 }
1150 
1151 
1152 void LIR_List::store_mem_int(jint v, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1153   append(new LIR_Op1(
1154             lir_move,
1155             LIR_OprFact::intConst(v),
1156             LIR_OprFact::address(new LIR_Address(base, offset_in_bytes, type)),
1157             type,
1158             patch_code,
1159             info));
1160 }
1161 
1162 
1163 void LIR_List::store_mem_oop(jobject o, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1164   append(new LIR_Op1(
1165             lir_move,
1166             LIR_OprFact::oopConst(o),
1167             LIR_OprFact::address(new LIR_Address(base, offset_in_bytes, type)),
1168             type,
1169             patch_code,
1170             info));
1171 }
1172 
1173 
1174 void LIR_List::store(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1175   append(new LIR_Op1(
1176             lir_move,
1177             src,
1178             LIR_OprFact::address(addr),
1179             addr->type(),
1180             patch_code,
1181             info));
1182 }
1183 
1184 
1185 void LIR_List::volatile_store_mem_reg(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1186   append(new LIR_Op1(
1187             lir_move,
1188             src,
1189             LIR_OprFact::address(addr),
1190             addr->type(),
1191             patch_code,
1192             info,
1193             lir_move_volatile));
1194 }
1195 
1196 void LIR_List::volatile_store_unsafe_reg(LIR_Opr src, LIR_Opr base, LIR_Opr offset, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1197   append(new LIR_Op1(
1198             lir_move,
1199             src,
1200             LIR_OprFact::address(new LIR_Address(base, offset, type)),
1201             type,
1202             patch_code,
1203             info, lir_move_volatile));
1204 }
1205 
1206 
1207 void LIR_List::idiv(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1208   append(new LIR_Op3(
1209                     lir_idiv,
1210                     left,
1211                     right,
1212                     tmp,
1213                     res,
1214                     info));
1215 }
1216 
1217 
1218 void LIR_List::idiv(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1219   append(new LIR_Op3(
1220                     lir_idiv,
1221                     left,
1222                     LIR_OprFact::intConst(right),
1223                     tmp,
1224                     res,
1225                     info));
1226 }
1227 
1228 
1229 void LIR_List::irem(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1230   append(new LIR_Op3(
1231                     lir_irem,
1232                     left,
1233                     right,
1234                     tmp,
1235                     res,
1236                     info));
1237 }
1238 
1239 
1240 void LIR_List::irem(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1241   append(new LIR_Op3(
1242                     lir_irem,
1243                     left,
1244                     LIR_OprFact::intConst(right),
1245                     tmp,
1246                     res,
1247                     info));
1248 }
1249 
1250 
1251 void LIR_List::cmp_mem_int(LIR_Condition condition, LIR_Opr base, int disp, int c, CodeEmitInfo* info) {
1252   append(new LIR_Op2(
1253                     lir_cmp,
1254                     condition,
1255                     LIR_OprFact::address(new LIR_Address(base, disp, T_INT)),
1256                     LIR_OprFact::intConst(c),
1257                     info));
1258 }
1259 
1260 
1261 void LIR_List::cmp_reg_mem(LIR_Condition condition, LIR_Opr reg, LIR_Address* addr, CodeEmitInfo* info) {
1262   append(new LIR_Op2(
1263                     lir_cmp,
1264                     condition,
1265                     reg,
1266                     LIR_OprFact::address(addr),
1267                     info));
1268 }
1269 
1270 void LIR_List::allocate_object(LIR_Opr dst, LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4,
1271                                int header_size, int object_size, LIR_Opr klass, bool init_check, CodeStub* stub) {
1272   append(new LIR_OpAllocObj(
1273                            klass,
1274                            dst,
1275                            t1,
1276                            t2,
1277                            t3,
1278                            t4,
1279                            header_size,
1280                            object_size,
1281                            init_check,
1282                            stub));
1283 }
1284 
1285 void LIR_List::allocate_array(LIR_Opr dst, LIR_Opr len, LIR_Opr t1,LIR_Opr t2, LIR_Opr t3,LIR_Opr t4, BasicType type, LIR_Opr klass, CodeStub* stub) {
1286   append(new LIR_OpAllocArray(
1287                            klass,
1288                            len,
1289                            dst,
1290                            t1,
1291                            t2,
1292                            t3,
1293                            t4,
1294                            type,
1295                            stub));
1296 }
1297 
1298 void LIR_List::shift_left(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1299  append(new LIR_Op2(
1300                     lir_shl,
1301                     value,
1302                     count,
1303                     dst,
1304                     tmp));
1305 }
1306 
1307 void LIR_List::shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1308  append(new LIR_Op2(
1309                     lir_shr,
1310                     value,
1311                     count,
1312                     dst,
1313                     tmp));
1314 }
1315 
1316 
1317 void LIR_List::unsigned_shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1318  append(new LIR_Op2(
1319                     lir_ushr,
1320                     value,
1321                     count,
1322                     dst,
1323                     tmp));
1324 }
1325 
1326 void LIR_List::fcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst, bool is_unordered_less) {
1327   append(new LIR_Op2(is_unordered_less ? lir_ucmp_fd2i : lir_cmp_fd2i,
1328                      left,
1329                      right,
1330                      dst));
1331 }
1332 
1333 void LIR_List::lock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info) {
1334   append(new LIR_OpLock(
1335                     lir_lock,
1336                     hdr,
1337                     obj,
1338                     lock,
1339                     scratch,
1340                     stub,
1341                     info));
1342 }
1343 
1344 void LIR_List::unlock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub) {
1345   append(new LIR_OpLock(
1346                     lir_unlock,
1347                     hdr,
1348                     obj,
1349                     lock,
1350                     scratch,
1351                     stub,
1352                     NULL));
1353 }
1354 
1355 
1356 void check_LIR() {
1357   // cannot do the proper checking as PRODUCT and other modes return different results
1358   // guarantee(sizeof(LIR_OprDesc) == wordSize, "may not have a v-table");
1359 }
1360 
1361 
1362 
1363 void LIR_List::checkcast (LIR_Opr result, LIR_Opr object, ciKlass* klass,
1364                           LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
1365                           CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub,
1366                           ciMethod* profiled_method, int profiled_bci) {
1367   append(new LIR_OpTypeCheck(lir_checkcast, result, object, klass,
1368                              tmp1, tmp2, tmp3, fast_check, info_for_exception, info_for_patch, stub,
1369                              profiled_method, profiled_bci));
1370 }
1371 
1372 
1373 void LIR_List::instanceof(LIR_Opr result, LIR_Opr object, ciKlass* klass, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check, CodeEmitInfo* info_for_patch) {
1374   append(new LIR_OpTypeCheck(lir_instanceof, result, object, klass, tmp1, tmp2, tmp3, fast_check, NULL, info_for_patch, NULL, NULL, 0));
1375 }
1376 
1377 
1378 void LIR_List::store_check(LIR_Opr object, LIR_Opr array, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, CodeEmitInfo* info_for_exception) {
1379   append(new LIR_OpTypeCheck(lir_store_check, object, array, tmp1, tmp2, tmp3, info_for_exception, NULL, 0));
1380 }
1381 
1382 
1383 void LIR_List::cas_long(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1384                         LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1385   append(new LIR_OpCompareAndSwap(lir_cas_long, addr, cmp_value, new_value, t1, t2, result));
1386 }
1387 
1388 void LIR_List::cas_obj(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1389                        LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1390   append(new LIR_OpCompareAndSwap(lir_cas_obj, addr, cmp_value, new_value, t1, t2, result));
1391 }
1392 
1393 void LIR_List::cas_int(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1394                        LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1395   append(new LIR_OpCompareAndSwap(lir_cas_int, addr, cmp_value, new_value, t1, t2, result));
1396 }
1397 
1398 
1399 #ifdef PRODUCT
1400 
1401 void print_LIR(BlockList* blocks) {
1402 }
1403 
1404 #else
1405 // LIR_OprDesc
1406 void LIR_OprDesc::print() const {
1407   print(tty);
1408 }
1409 
1410 void LIR_OprDesc::print(outputStream* out) const {
1411   if (is_illegal()) {
1412     return;
1413   }
1414 
1415   out->print("[");
1416   if (is_pointer()) {
1417     pointer()->print_value_on(out);
1418   } else if (is_single_stack()) {
1419     out->print("stack:%d", single_stack_ix());
1420   } else if (is_double_stack()) {
1421     out->print("dbl_stack:%d",double_stack_ix());
1422   } else if (is_virtual()) {
1423     out->print("R%d", vreg_number());
1424   } else if (is_single_cpu()) {
1425     out->print(as_register()->name());
1426   } else if (is_double_cpu()) {
1427     out->print(as_register_hi()->name());
1428     out->print(as_register_lo()->name());
1429 #if defined(X86)
1430   } else if (is_single_xmm()) {
1431     out->print(as_xmm_float_reg()->name());
1432   } else if (is_double_xmm()) {
1433     out->print(as_xmm_double_reg()->name());
1434   } else if (is_single_fpu()) {
1435     out->print("fpu%d", fpu_regnr());
1436   } else if (is_double_fpu()) {
1437     out->print("fpu%d", fpu_regnrLo());
1438 #elif defined(ARM)
1439   } else if (is_single_fpu()) {
1440     out->print("s%d", fpu_regnr());
1441   } else if (is_double_fpu()) {
1442     out->print("d%d", fpu_regnrLo() >> 1);
1443 #else
1444   } else if (is_single_fpu()) {
1445     out->print(as_float_reg()->name());
1446   } else if (is_double_fpu()) {
1447     out->print(as_double_reg()->name());
1448 #endif
1449 
1450   } else if (is_illegal()) {
1451     out->print("-");
1452   } else {
1453     out->print("Unknown Operand");
1454   }
1455   if (!is_illegal()) {
1456     out->print("|%c", type_char());
1457   }
1458   if (is_register() && is_last_use()) {
1459     out->print("(last_use)");
1460   }
1461   out->print("]");
1462 }
1463 
1464 
1465 // LIR_Address
1466 void LIR_Const::print_value_on(outputStream* out) const {
1467   switch (type()) {
1468     case T_ADDRESS:out->print("address:%d",as_jint());          break;
1469     case T_INT:    out->print("int:%d",   as_jint());           break;
1470     case T_LONG:   out->print("lng:%lld", as_jlong());          break;
1471     case T_FLOAT:  out->print("flt:%f",   as_jfloat());         break;
1472     case T_DOUBLE: out->print("dbl:%f",   as_jdouble());        break;
1473     case T_OBJECT: out->print("obj:0x%x", as_jobject());        break;
1474     default:       out->print("%3d:0x%x",type(), as_jdouble()); break;
1475   }
1476 }
1477 
1478 // LIR_Address
1479 void LIR_Address::print_value_on(outputStream* out) const {
1480   out->print("Base:"); _base->print(out);
1481   if (!_index->is_illegal()) {
1482     out->print(" Index:"); _index->print(out);
1483     switch (scale()) {
1484     case times_1: break;
1485     case times_2: out->print(" * 2"); break;
1486     case times_4: out->print(" * 4"); break;
1487     case times_8: out->print(" * 8"); break;
1488     }
1489   }
1490   out->print(" Disp: %d", _disp);
1491 }
1492 
1493 // debug output of block header without InstructionPrinter
1494 //       (because phi functions are not necessary for LIR)
1495 static void print_block(BlockBegin* x) {
1496   // print block id
1497   BlockEnd* end = x->end();
1498   tty->print("B%d ", x->block_id());
1499 
1500   // print flags
1501   if (x->is_set(BlockBegin::std_entry_flag))               tty->print("std ");
1502   if (x->is_set(BlockBegin::osr_entry_flag))               tty->print("osr ");
1503   if (x->is_set(BlockBegin::exception_entry_flag))         tty->print("ex ");
1504   if (x->is_set(BlockBegin::subroutine_entry_flag))        tty->print("jsr ");
1505   if (x->is_set(BlockBegin::backward_branch_target_flag))  tty->print("bb ");
1506   if (x->is_set(BlockBegin::linear_scan_loop_header_flag)) tty->print("lh ");
1507   if (x->is_set(BlockBegin::linear_scan_loop_end_flag))    tty->print("le ");
1508 
1509   // print block bci range
1510   tty->print("[%d, %d] ", x->bci(), (end == NULL ? -1 : end->bci()));
1511 
1512   // print predecessors and successors
1513   if (x->number_of_preds() > 0) {
1514     tty->print("preds: ");
1515     for (int i = 0; i < x->number_of_preds(); i ++) {
1516       tty->print("B%d ", x->pred_at(i)->block_id());
1517     }
1518   }
1519 
1520   if (x->number_of_sux() > 0) {
1521     tty->print("sux: ");
1522     for (int i = 0; i < x->number_of_sux(); i ++) {
1523       tty->print("B%d ", x->sux_at(i)->block_id());
1524     }
1525   }
1526 
1527   // print exception handlers
1528   if (x->number_of_exception_handlers() > 0) {
1529     tty->print("xhandler: ");
1530     for (int i = 0; i < x->number_of_exception_handlers();  i++) {
1531       tty->print("B%d ", x->exception_handler_at(i)->block_id());
1532     }
1533   }
1534 
1535   tty->cr();
1536 }
1537 
1538 void print_LIR(BlockList* blocks) {
1539   tty->print_cr("LIR:");
1540   int i;
1541   for (i = 0; i < blocks->length(); i++) {
1542     BlockBegin* bb = blocks->at(i);
1543     print_block(bb);
1544     tty->print("__id_Instruction___________________________________________"); tty->cr();
1545     bb->lir()->print_instructions();
1546   }
1547 }
1548 
1549 void LIR_List::print_instructions() {
1550   for (int i = 0; i < _operations.length(); i++) {
1551     _operations.at(i)->print(); tty->cr();
1552   }
1553   tty->cr();
1554 }
1555 
1556 // LIR_Ops printing routines
1557 // LIR_Op
1558 void LIR_Op::print_on(outputStream* out) const {
1559   if (id() != -1 || PrintCFGToFile) {
1560     out->print("%4d ", id());
1561   } else {
1562     out->print("     ");
1563   }
1564   out->print(name()); out->print(" ");
1565   print_instr(out);
1566   if (info() != NULL) out->print(" [bci:%d]", info()->bci());
1567 #ifdef ASSERT
1568   if (Verbose && _file != NULL) {
1569     out->print(" (%s:%d)", _file, _line);
1570   }
1571 #endif
1572 }
1573 
1574 const char * LIR_Op::name() const {
1575   const char* s = NULL;
1576   switch(code()) {
1577      // LIR_Op0
1578      case lir_membar:                s = "membar";        break;
1579      case lir_membar_acquire:        s = "membar_acquire"; break;
1580      case lir_membar_release:        s = "membar_release"; break;
1581      case lir_word_align:            s = "word_align";    break;
1582      case lir_label:                 s = "label";         break;
1583      case lir_nop:                   s = "nop";           break;
1584      case lir_backwardbranch_target: s = "backbranch";    break;
1585      case lir_std_entry:             s = "std_entry";     break;
1586      case lir_osr_entry:             s = "osr_entry";     break;
1587      case lir_build_frame:           s = "build_frm";     break;
1588      case lir_fpop_raw:              s = "fpop_raw";      break;
1589      case lir_24bit_FPU:             s = "24bit_FPU";     break;
1590      case lir_reset_FPU:             s = "reset_FPU";     break;
1591      case lir_breakpoint:            s = "breakpoint";    break;
1592      case lir_get_thread:            s = "get_thread";    break;
1593      // LIR_Op1
1594      case lir_fxch:                  s = "fxch";          break;
1595      case lir_fld:                   s = "fld";           break;
1596      case lir_ffree:                 s = "ffree";         break;
1597      case lir_push:                  s = "push";          break;
1598      case lir_pop:                   s = "pop";           break;
1599      case lir_null_check:            s = "null_check";    break;
1600      case lir_return:                s = "return";        break;
1601      case lir_safepoint:             s = "safepoint";     break;
1602      case lir_neg:                   s = "neg";           break;
1603      case lir_leal:                  s = "leal";          break;
1604      case lir_branch:                s = "branch";        break;
1605      case lir_cond_float_branch:     s = "flt_cond_br";   break;
1606      case lir_move:                  s = "move";          break;
1607      case lir_roundfp:               s = "roundfp";       break;
1608      case lir_rtcall:                s = "rtcall";        break;
1609      case lir_throw:                 s = "throw";         break;
1610      case lir_unwind:                s = "unwind";        break;
1611      case lir_convert:               s = "convert";       break;
1612      case lir_alloc_object:          s = "alloc_obj";     break;
1613      case lir_monaddr:               s = "mon_addr";      break;
1614      // LIR_Op2
1615      case lir_cmp:                   s = "cmp";           break;
1616      case lir_cmp_l2i:               s = "cmp_l2i";       break;
1617      case lir_ucmp_fd2i:             s = "ucomp_fd2i";    break;
1618      case lir_cmp_fd2i:              s = "comp_fd2i";     break;
1619      case lir_cmove:                 s = "cmove";         break;
1620      case lir_add:                   s = "add";           break;
1621      case lir_sub:                   s = "sub";           break;
1622      case lir_mul:                   s = "mul";           break;
1623      case lir_mul_strictfp:          s = "mul_strictfp";  break;
1624      case lir_div:                   s = "div";           break;
1625      case lir_div_strictfp:          s = "div_strictfp";  break;
1626      case lir_rem:                   s = "rem";           break;
1627      case lir_abs:                   s = "abs";           break;
1628      case lir_sqrt:                  s = "sqrt";          break;
1629      case lir_sin:                   s = "sin";           break;
1630      case lir_cos:                   s = "cos";           break;
1631      case lir_tan:                   s = "tan";           break;
1632      case lir_log:                   s = "log";           break;
1633      case lir_log10:                 s = "log10";         break;
1634      case lir_logic_and:             s = "logic_and";     break;
1635      case lir_logic_or:              s = "logic_or";      break;
1636      case lir_logic_xor:             s = "logic_xor";     break;
1637      case lir_shl:                   s = "shift_left";    break;
1638      case lir_shr:                   s = "shift_right";   break;
1639      case lir_ushr:                  s = "ushift_right";  break;
1640      case lir_alloc_array:           s = "alloc_array";   break;
1641      // LIR_Op3
1642      case lir_idiv:                  s = "idiv";          break;
1643      case lir_irem:                  s = "irem";          break;
1644      // LIR_OpJavaCall
1645      case lir_static_call:           s = "static";        break;
1646      case lir_optvirtual_call:       s = "optvirtual";    break;
1647      case lir_icvirtual_call:        s = "icvirtual";     break;
1648      case lir_virtual_call:          s = "virtual";       break;
1649      case lir_dynamic_call:          s = "dynamic";       break;
1650      // LIR_OpArrayCopy
1651      case lir_arraycopy:             s = "arraycopy";     break;
1652      // LIR_OpLock
1653      case lir_lock:                  s = "lock";          break;
1654      case lir_unlock:                s = "unlock";        break;
1655      // LIR_OpDelay
1656      case lir_delay_slot:            s = "delay";         break;
1657      // LIR_OpTypeCheck
1658      case lir_instanceof:            s = "instanceof";    break;
1659      case lir_checkcast:             s = "checkcast";     break;
1660      case lir_store_check:           s = "store_check";   break;
1661      // LIR_OpCompareAndSwap
1662      case lir_cas_long:              s = "cas_long";      break;
1663      case lir_cas_obj:               s = "cas_obj";      break;
1664      case lir_cas_int:               s = "cas_int";      break;
1665      // LIR_OpProfileCall
1666      case lir_profile_call:          s = "profile_call";  break;
1667 
1668      case lir_none:                  ShouldNotReachHere();break;
1669     default:                         s = "illegal_op";    break;
1670   }
1671   return s;
1672 }
1673 
1674 // LIR_OpJavaCall
1675 void LIR_OpJavaCall::print_instr(outputStream* out) const {
1676   out->print("call: ");
1677   out->print("[addr: 0x%x]", address());
1678   if (receiver()->is_valid()) {
1679     out->print(" [recv: ");   receiver()->print(out);   out->print("]");
1680   }
1681   if (result_opr()->is_valid()) {
1682     out->print(" [result: "); result_opr()->print(out); out->print("]");
1683   }
1684 }
1685 
1686 // LIR_OpLabel
1687 void LIR_OpLabel::print_instr(outputStream* out) const {
1688   out->print("[label:0x%x]", _label);
1689 }
1690 
1691 // LIR_OpArrayCopy
1692 void LIR_OpArrayCopy::print_instr(outputStream* out) const {
1693   src()->print(out);     out->print(" ");
1694   src_pos()->print(out); out->print(" ");
1695   dst()->print(out);     out->print(" ");
1696   dst_pos()->print(out); out->print(" ");
1697   length()->print(out);  out->print(" ");
1698   tmp()->print(out);     out->print(" ");
1699 }
1700 
1701 // LIR_OpCompareAndSwap
1702 void LIR_OpCompareAndSwap::print_instr(outputStream* out) const {
1703   addr()->print(out);      out->print(" ");
1704   cmp_value()->print(out); out->print(" ");
1705   new_value()->print(out); out->print(" ");
1706   tmp1()->print(out);      out->print(" ");
1707   tmp2()->print(out);      out->print(" ");
1708 
1709 }
1710 
1711 // LIR_Op0
1712 void LIR_Op0::print_instr(outputStream* out) const {
1713   result_opr()->print(out);
1714 }
1715 
1716 // LIR_Op1
1717 const char * LIR_Op1::name() const {
1718   if (code() == lir_move) {
1719     switch (move_kind()) {
1720     case lir_move_normal:
1721       return "move";
1722     case lir_move_unaligned:
1723       return "unaligned move";
1724     case lir_move_volatile:
1725       return "volatile_move";
1726     default:
1727       ShouldNotReachHere();
1728     return "illegal_op";
1729     }
1730   } else {
1731     return LIR_Op::name();
1732   }
1733 }
1734 
1735 
1736 void LIR_Op1::print_instr(outputStream* out) const {
1737   _opr->print(out);         out->print(" ");
1738   result_opr()->print(out); out->print(" ");
1739   print_patch_code(out, patch_code());
1740 }
1741 
1742 
1743 // LIR_Op1
1744 void LIR_OpRTCall::print_instr(outputStream* out) const {
1745   intx a = (intx)addr();
1746   out->print(Runtime1::name_for_address(addr()));
1747   out->print(" ");
1748   tmp()->print(out);
1749 }
1750 
1751 void LIR_Op1::print_patch_code(outputStream* out, LIR_PatchCode code) {
1752   switch(code) {
1753     case lir_patch_none:                                 break;
1754     case lir_patch_low:    out->print("[patch_low]");    break;
1755     case lir_patch_high:   out->print("[patch_high]");   break;
1756     case lir_patch_normal: out->print("[patch_normal]"); break;
1757     default: ShouldNotReachHere();
1758   }
1759 }
1760 
1761 // LIR_OpBranch
1762 void LIR_OpBranch::print_instr(outputStream* out) const {
1763   print_condition(out, cond());             out->print(" ");
1764   if (block() != NULL) {
1765     out->print("[B%d] ", block()->block_id());
1766   } else if (stub() != NULL) {
1767     out->print("[");
1768     stub()->print_name(out);
1769     out->print(": 0x%x]", stub());
1770     if (stub()->info() != NULL) out->print(" [bci:%d]", stub()->info()->bci());
1771   } else {
1772     out->print("[label:0x%x] ", label());
1773   }
1774   if (ublock() != NULL) {
1775     out->print("unordered: [B%d] ", ublock()->block_id());
1776   }
1777 }
1778 
1779 void LIR_Op::print_condition(outputStream* out, LIR_Condition cond) {
1780   switch(cond) {
1781     case lir_cond_equal:           out->print("[EQ]");      break;
1782     case lir_cond_notEqual:        out->print("[NE]");      break;
1783     case lir_cond_less:            out->print("[LT]");      break;
1784     case lir_cond_lessEqual:       out->print("[LE]");      break;
1785     case lir_cond_greaterEqual:    out->print("[GE]");      break;
1786     case lir_cond_greater:         out->print("[GT]");      break;
1787     case lir_cond_belowEqual:      out->print("[BE]");      break;
1788     case lir_cond_aboveEqual:      out->print("[AE]");      break;
1789     case lir_cond_always:          out->print("[AL]");      break;
1790     default:                       out->print("[%d]",cond); break;
1791   }
1792 }
1793 
1794 // LIR_OpConvert
1795 void LIR_OpConvert::print_instr(outputStream* out) const {
1796   print_bytecode(out, bytecode());
1797   in_opr()->print(out);                  out->print(" ");
1798   result_opr()->print(out);              out->print(" ");
1799 #ifdef PPC
1800   if(tmp1()->is_valid()) {
1801     tmp1()->print(out); out->print(" ");
1802     tmp2()->print(out); out->print(" ");
1803   }
1804 #endif
1805 }
1806 
1807 void LIR_OpConvert::print_bytecode(outputStream* out, Bytecodes::Code code) {
1808   switch(code) {
1809     case Bytecodes::_d2f: out->print("[d2f] "); break;
1810     case Bytecodes::_d2i: out->print("[d2i] "); break;
1811     case Bytecodes::_d2l: out->print("[d2l] "); break;
1812     case Bytecodes::_f2d: out->print("[f2d] "); break;
1813     case Bytecodes::_f2i: out->print("[f2i] "); break;
1814     case Bytecodes::_f2l: out->print("[f2l] "); break;
1815     case Bytecodes::_i2b: out->print("[i2b] "); break;
1816     case Bytecodes::_i2c: out->print("[i2c] "); break;
1817     case Bytecodes::_i2d: out->print("[i2d] "); break;
1818     case Bytecodes::_i2f: out->print("[i2f] "); break;
1819     case Bytecodes::_i2l: out->print("[i2l] "); break;
1820     case Bytecodes::_i2s: out->print("[i2s] "); break;
1821     case Bytecodes::_l2i: out->print("[l2i] "); break;
1822     case Bytecodes::_l2f: out->print("[l2f] "); break;
1823     case Bytecodes::_l2d: out->print("[l2d] "); break;
1824     default:
1825       out->print("[?%d]",code);
1826     break;
1827   }
1828 }
1829 
1830 void LIR_OpAllocObj::print_instr(outputStream* out) const {
1831   klass()->print(out);                      out->print(" ");
1832   obj()->print(out);                        out->print(" ");
1833   tmp1()->print(out);                       out->print(" ");
1834   tmp2()->print(out);                       out->print(" ");
1835   tmp3()->print(out);                       out->print(" ");
1836   tmp4()->print(out);                       out->print(" ");
1837   out->print("[hdr:%d]", header_size()); out->print(" ");
1838   out->print("[obj:%d]", object_size()); out->print(" ");
1839   out->print("[lbl:0x%x]", stub()->entry());
1840 }
1841 
1842 void LIR_OpRoundFP::print_instr(outputStream* out) const {
1843   _opr->print(out);         out->print(" ");
1844   tmp()->print(out);        out->print(" ");
1845   result_opr()->print(out); out->print(" ");
1846 }
1847 
1848 // LIR_Op2
1849 void LIR_Op2::print_instr(outputStream* out) const {
1850   if (code() == lir_cmove) {
1851     print_condition(out, condition());         out->print(" ");
1852   }
1853   in_opr1()->print(out);    out->print(" ");
1854   in_opr2()->print(out);    out->print(" ");
1855   if (tmp_opr()->is_valid()) { tmp_opr()->print(out);    out->print(" "); }
1856   result_opr()->print(out);
1857 }
1858 
1859 void LIR_OpAllocArray::print_instr(outputStream* out) const {
1860   klass()->print(out);                   out->print(" ");
1861   len()->print(out);                     out->print(" ");
1862   obj()->print(out);                     out->print(" ");
1863   tmp1()->print(out);                    out->print(" ");
1864   tmp2()->print(out);                    out->print(" ");
1865   tmp3()->print(out);                    out->print(" ");
1866   tmp4()->print(out);                    out->print(" ");
1867   out->print("[type:0x%x]", type());     out->print(" ");
1868   out->print("[label:0x%x]", stub()->entry());
1869 }
1870 
1871 
1872 void LIR_OpTypeCheck::print_instr(outputStream* out) const {
1873   object()->print(out);                  out->print(" ");
1874   if (code() == lir_store_check) {
1875     array()->print(out);                 out->print(" ");
1876   }
1877   if (code() != lir_store_check) {
1878     klass()->print_name_on(out);         out->print(" ");
1879     if (fast_check())                 out->print("fast_check ");
1880   }
1881   tmp1()->print(out);                    out->print(" ");
1882   tmp2()->print(out);                    out->print(" ");
1883   tmp3()->print(out);                    out->print(" ");
1884   result_opr()->print(out);              out->print(" ");
1885   if (info_for_exception() != NULL) out->print(" [bci:%d]", info_for_exception()->bci());
1886 }
1887 
1888 
1889 // LIR_Op3
1890 void LIR_Op3::print_instr(outputStream* out) const {
1891   in_opr1()->print(out);    out->print(" ");
1892   in_opr2()->print(out);    out->print(" ");
1893   in_opr3()->print(out);    out->print(" ");
1894   result_opr()->print(out);
1895 }
1896 
1897 
1898 void LIR_OpLock::print_instr(outputStream* out) const {
1899   hdr_opr()->print(out);   out->print(" ");
1900   obj_opr()->print(out);   out->print(" ");
1901   lock_opr()->print(out);  out->print(" ");
1902   if (_scratch->is_valid()) {
1903     _scratch->print(out);  out->print(" ");
1904   }
1905   out->print("[lbl:0x%x]", stub()->entry());
1906 }
1907 
1908 
1909 void LIR_OpDelay::print_instr(outputStream* out) const {
1910   _op->print_on(out);
1911 }
1912 
1913 
1914 // LIR_OpProfileCall
1915 void LIR_OpProfileCall::print_instr(outputStream* out) const {
1916   profiled_method()->name()->print_symbol_on(out);
1917   out->print(".");
1918   profiled_method()->holder()->name()->print_symbol_on(out);
1919   out->print(" @ %d ", profiled_bci());
1920   mdo()->print(out);           out->print(" ");
1921   recv()->print(out);          out->print(" ");
1922   tmp1()->print(out);          out->print(" ");
1923 }
1924 
1925 
1926 #endif // PRODUCT
1927 
1928 // Implementation of LIR_InsertionBuffer
1929 
1930 void LIR_InsertionBuffer::append(int index, LIR_Op* op) {
1931   assert(_index_and_count.length() % 2 == 0, "must have a count for each index");
1932 
1933   int i = number_of_insertion_points() - 1;
1934   if (i < 0 || index_at(i) < index) {
1935     append_new(index, 1);
1936   } else {
1937     assert(index_at(i) == index, "can append LIR_Ops in ascending order only");
1938     assert(count_at(i) > 0, "check");
1939     set_count_at(i, count_at(i) + 1);
1940   }
1941   _ops.push(op);
1942 
1943   DEBUG_ONLY(verify());
1944 }
1945 
1946 #ifdef ASSERT
1947 void LIR_InsertionBuffer::verify() {
1948   int sum = 0;
1949   int prev_idx = -1;
1950 
1951   for (int i = 0; i < number_of_insertion_points(); i++) {
1952     assert(prev_idx < index_at(i), "index must be ordered ascending");
1953     sum += count_at(i);
1954   }
1955   assert(sum == number_of_ops(), "wrong total sum");
1956 }
1957 #endif