1 /*
   2  * Copyright (c) 2000, 2017, 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 "precompiled.hpp"
  26 #include "c1/c1_InstructionPrinter.hpp"
  27 #include "c1/c1_LIR.hpp"
  28 #include "c1/c1_LIRAssembler.hpp"
  29 #include "c1/c1_ValueStack.hpp"
  30 #include "ci/ciInstance.hpp"
  31 #include "runtime/sharedRuntime.hpp"
  32 
  33 Register LIR_OprDesc::as_register() const {
  34   return FrameMap::cpu_rnr2reg(cpu_regnr());
  35 }
  36 
  37 Register LIR_OprDesc::as_register_lo() const {
  38   return FrameMap::cpu_rnr2reg(cpu_regnrLo());
  39 }
  40 
  41 Register LIR_OprDesc::as_register_hi() const {
  42   return FrameMap::cpu_rnr2reg(cpu_regnrHi());
  43 }
  44 
  45 LIR_Opr LIR_OprFact::illegalOpr = LIR_OprFact::illegal();
  46 
  47 LIR_Opr LIR_OprFact::value_type(ValueType* type) {
  48   ValueTag tag = type->tag();
  49   switch (tag) {
  50   case metaDataTag : {
  51     ClassConstant* c = type->as_ClassConstant();
  52     if (c != NULL && !c->value()->is_loaded()) {
  53       return LIR_OprFact::metadataConst(NULL);
  54     } else if (c != NULL) {
  55       return LIR_OprFact::metadataConst(c->value()->constant_encoding());
  56     } else {
  57       MethodConstant* m = type->as_MethodConstant();
  58       assert (m != NULL, "not a class or a method?");
  59       return LIR_OprFact::metadataConst(m->value()->constant_encoding());
  60     }
  61   }
  62   case objectTag : {
  63       return LIR_OprFact::oopConst(type->as_ObjectType()->encoding());
  64     }
  65   case addressTag: return LIR_OprFact::addressConst(type->as_AddressConstant()->value());
  66   case intTag    : return LIR_OprFact::intConst(type->as_IntConstant()->value());
  67   case floatTag  : return LIR_OprFact::floatConst(type->as_FloatConstant()->value());
  68   case longTag   : return LIR_OprFact::longConst(type->as_LongConstant()->value());
  69   case doubleTag : return LIR_OprFact::doubleConst(type->as_DoubleConstant()->value());
  70   default: ShouldNotReachHere(); return LIR_OprFact::intConst(-1);
  71   }
  72 }
  73 
  74 
  75 LIR_Opr LIR_OprFact::dummy_value_type(ValueType* type) {
  76   switch (type->tag()) {
  77     case objectTag: return LIR_OprFact::oopConst(NULL);
  78     case addressTag:return LIR_OprFact::addressConst(0);
  79     case intTag:    return LIR_OprFact::intConst(0);
  80     case floatTag:  return LIR_OprFact::floatConst(0.0);
  81     case longTag:   return LIR_OprFact::longConst(0);
  82     case doubleTag: return LIR_OprFact::doubleConst(0.0);
  83     default:        ShouldNotReachHere(); return LIR_OprFact::intConst(-1);
  84   }
  85   return illegalOpr;
  86 }
  87 
  88 
  89 
  90 //---------------------------------------------------
  91 
  92 
  93 LIR_Address::Scale LIR_Address::scale(BasicType type) {
  94   int elem_size = type2aelembytes(type);
  95   switch (elem_size) {
  96   case 1: return LIR_Address::times_1;
  97   case 2: return LIR_Address::times_2;
  98   case 4: return LIR_Address::times_4;
  99   case 8: return LIR_Address::times_8;
 100   }
 101   ShouldNotReachHere();
 102   return LIR_Address::times_1;
 103 }
 104 
 105 //---------------------------------------------------
 106 
 107 char LIR_OprDesc::type_char(BasicType t) {
 108   switch (t) {
 109     case T_ARRAY:
 110       t = T_OBJECT;
 111     case T_BOOLEAN:
 112     case T_CHAR:
 113     case T_FLOAT:
 114     case T_DOUBLE:
 115     case T_BYTE:
 116     case T_SHORT:
 117     case T_INT:
 118     case T_LONG:
 119     case T_OBJECT:
 120     case T_ADDRESS:
 121     case T_VOID:
 122       return ::type2char(t);
 123     case T_METADATA:
 124       return 'M';
 125     case T_ILLEGAL:
 126       return '?';
 127 
 128     default:
 129       ShouldNotReachHere();
 130       return '?';
 131   }
 132 }
 133 
 134 #ifndef PRODUCT
 135 void LIR_OprDesc::validate_type() const {
 136 
 137 #ifdef ASSERT
 138   if (!is_pointer() && !is_illegal()) {
 139     OprKind kindfield = kind_field(); // Factored out because of compiler bug, see 8002160
 140     switch (as_BasicType(type_field())) {
 141     case T_LONG:
 142       assert((kindfield == cpu_register || kindfield == stack_value) &&
 143              size_field() == double_size, "must match");
 144       break;
 145     case T_FLOAT:
 146       // FP return values can be also in CPU registers on ARM and PPC32 (softfp ABI)
 147       assert((kindfield == fpu_register || kindfield == stack_value
 148              ARM_ONLY(|| kindfield == cpu_register)
 149              PPC32_ONLY(|| kindfield == cpu_register) ) &&
 150              size_field() == single_size, "must match");
 151       break;
 152     case T_DOUBLE:
 153       // FP return values can be also in CPU registers on ARM and PPC32 (softfp ABI)
 154       assert((kindfield == fpu_register || kindfield == stack_value
 155              ARM_ONLY(|| kindfield == cpu_register)
 156              PPC32_ONLY(|| kindfield == cpu_register) ) &&
 157              size_field() == double_size, "must match");
 158       break;
 159     case T_BOOLEAN:
 160     case T_CHAR:
 161     case T_BYTE:
 162     case T_SHORT:
 163     case T_INT:
 164     case T_ADDRESS:
 165     case T_OBJECT:
 166     case T_METADATA:
 167     case T_ARRAY:
 168       assert((kindfield == cpu_register || kindfield == stack_value) &&
 169              size_field() == single_size, "must match");
 170       break;
 171 
 172     case T_ILLEGAL:
 173       // XXX TKR also means unknown right now
 174       // assert(is_illegal(), "must match");
 175       break;
 176 
 177     default:
 178       ShouldNotReachHere();
 179     }
 180   }
 181 #endif
 182 
 183 }
 184 #endif // PRODUCT
 185 
 186 
 187 bool LIR_OprDesc::is_oop() const {
 188   if (is_pointer()) {
 189     return pointer()->is_oop_pointer();
 190   } else {
 191     OprType t= type_field();
 192     assert(t != unknown_type, "not set");
 193     return t == object_type;
 194   }
 195 }
 196 
 197 
 198 
 199 void LIR_Op2::verify() const {
 200 #ifdef ASSERT
 201   switch (code()) {
 202     case lir_cmove:
 203     case lir_xchg:
 204       break;
 205 
 206     default:
 207       assert(!result_opr()->is_register() || !result_opr()->is_oop_register(),
 208              "can't produce oops from arith");
 209   }
 210 
 211   if (TwoOperandLIRForm) {
 212 
 213 #ifdef ASSERT
 214     bool threeOperandForm = false;
 215 #ifdef S390
 216     // There are 3 operand shifts on S390 (see LIR_Assembler::shift_op()).
 217     threeOperandForm =
 218       code() == lir_shl ||
 219       ((code() == lir_shr || code() == lir_ushr) && (result_opr()->is_double_cpu() || in_opr1()->type() == T_OBJECT));
 220 #endif
 221 #endif
 222 
 223     switch (code()) {
 224     case lir_add:
 225     case lir_sub:
 226     case lir_mul:
 227     case lir_mul_strictfp:
 228     case lir_div:
 229     case lir_div_strictfp:
 230     case lir_rem:
 231     case lir_logic_and:
 232     case lir_logic_or:
 233     case lir_logic_xor:
 234     case lir_shl:
 235     case lir_shr:
 236       assert(in_opr1() == result_opr() || threeOperandForm, "opr1 and result must match");
 237       assert(in_opr1()->is_valid() && in_opr2()->is_valid(), "must be valid");
 238       break;
 239 
 240     // special handling for lir_ushr because of write barriers
 241     case lir_ushr:
 242       assert(in_opr1() == result_opr() || in_opr2()->is_constant() || threeOperandForm, "opr1 and result must match or shift count is constant");
 243       assert(in_opr1()->is_valid() && in_opr2()->is_valid(), "must be valid");
 244       break;
 245 
 246     default:
 247       break;
 248     }
 249   }
 250 #endif
 251 }
 252 
 253 
 254 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, BasicType type, BlockBegin* block)
 255   : LIR_Op(lir_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*)NULL)
 256   , _cond(cond)
 257   , _type(type)
 258   , _label(block->label())
 259   , _block(block)
 260   , _ublock(NULL)
 261   , _stub(NULL) {
 262 }
 263 
 264 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, BasicType type, CodeStub* stub) :
 265   LIR_Op(lir_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*)NULL)
 266   , _cond(cond)
 267   , _type(type)
 268   , _label(stub->entry())
 269   , _block(NULL)
 270   , _ublock(NULL)
 271   , _stub(stub) {
 272 }
 273 
 274 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, BasicType type, BlockBegin* block, BlockBegin* ublock)
 275   : LIR_Op(lir_cond_float_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*)NULL)
 276   , _cond(cond)
 277   , _type(type)
 278   , _label(block->label())
 279   , _block(block)
 280   , _ublock(ublock)
 281   , _stub(NULL)
 282 {
 283 }
 284 
 285 void LIR_OpBranch::change_block(BlockBegin* b) {
 286   assert(_block != NULL, "must have old block");
 287   assert(_block->label() == label(), "must be equal");
 288 
 289   _block = b;
 290   _label = b->label();
 291 }
 292 
 293 void LIR_OpBranch::change_ublock(BlockBegin* b) {
 294   assert(_ublock != NULL, "must have old block");
 295   _ublock = b;
 296 }
 297 
 298 void LIR_OpBranch::negate_cond() {
 299   switch (_cond) {
 300     case lir_cond_equal:        _cond = lir_cond_notEqual;     break;
 301     case lir_cond_notEqual:     _cond = lir_cond_equal;        break;
 302     case lir_cond_less:         _cond = lir_cond_greaterEqual; break;
 303     case lir_cond_lessEqual:    _cond = lir_cond_greater;      break;
 304     case lir_cond_greaterEqual: _cond = lir_cond_less;         break;
 305     case lir_cond_greater:      _cond = lir_cond_lessEqual;    break;
 306     default: ShouldNotReachHere();
 307   }
 308 }
 309 
 310 
 311 LIR_OpTypeCheck::LIR_OpTypeCheck(LIR_Code code, LIR_Opr result, LIR_Opr object, ciKlass* klass,
 312                                  LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3,
 313                                  bool fast_check, CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch,
 314                                  CodeStub* stub)
 315 
 316   : LIR_Op(code, result, NULL)
 317   , _object(object)
 318   , _array(LIR_OprFact::illegalOpr)
 319   , _klass(klass)
 320   , _tmp1(tmp1)
 321   , _tmp2(tmp2)
 322   , _tmp3(tmp3)
 323   , _fast_check(fast_check)
 324   , _info_for_patch(info_for_patch)
 325   , _info_for_exception(info_for_exception)
 326   , _stub(stub)
 327   , _profiled_method(NULL)
 328   , _profiled_bci(-1)
 329   , _should_profile(false)
 330 {
 331   if (code == lir_checkcast) {
 332     assert(info_for_exception != NULL, "checkcast throws exceptions");
 333   } else if (code == lir_instanceof) {
 334     assert(info_for_exception == NULL, "instanceof throws no exceptions");
 335   } else {
 336     ShouldNotReachHere();
 337   }
 338 }
 339 
 340 
 341 
 342 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)
 343   : LIR_Op(code, LIR_OprFact::illegalOpr, NULL)
 344   , _object(object)
 345   , _array(array)
 346   , _klass(NULL)
 347   , _tmp1(tmp1)
 348   , _tmp2(tmp2)
 349   , _tmp3(tmp3)
 350   , _fast_check(false)
 351   , _info_for_patch(NULL)
 352   , _info_for_exception(info_for_exception)
 353   , _stub(NULL)
 354   , _profiled_method(NULL)
 355   , _profiled_bci(-1)
 356   , _should_profile(false)
 357 {
 358   if (code == lir_store_check) {
 359     _stub = new ArrayStoreExceptionStub(object, info_for_exception);
 360     assert(info_for_exception != NULL, "store_check throws exceptions");
 361   } else {
 362     ShouldNotReachHere();
 363   }
 364 }
 365 
 366 
 367 LIR_OpArrayCopy::LIR_OpArrayCopy(LIR_Opr src, LIR_Opr src_pos, LIR_Opr dst, LIR_Opr dst_pos, LIR_Opr length,
 368                                  LIR_Opr tmp, ciArrayKlass* expected_type, int flags, CodeEmitInfo* info)
 369   : LIR_Op(lir_arraycopy, LIR_OprFact::illegalOpr, info)
 370   , _src(src)
 371   , _src_pos(src_pos)
 372   , _dst(dst)
 373   , _dst_pos(dst_pos)
 374   , _length(length)
 375   , _tmp(tmp)
 376   , _expected_type(expected_type)
 377   , _flags(flags) {
 378   _stub = new ArrayCopyStub(this);
 379 }
 380 
 381 LIR_OpUpdateCRC32::LIR_OpUpdateCRC32(LIR_Opr crc, LIR_Opr val, LIR_Opr res)
 382   : LIR_Op(lir_updatecrc32, res, NULL)
 383   , _crc(crc)
 384   , _val(val) {
 385 }
 386 
 387 //-------------------verify--------------------------
 388 
 389 void LIR_Op1::verify() const {
 390   switch(code()) {
 391   case lir_move:
 392     assert(in_opr()->is_valid() && result_opr()->is_valid(), "must be");
 393     break;
 394   case lir_null_check:
 395     assert(in_opr()->is_register(), "must be");
 396     break;
 397   case lir_return:
 398     assert(in_opr()->is_register() || in_opr()->is_illegal(), "must be");
 399     break;
 400   default:
 401     break;
 402   }
 403 }
 404 
 405 void LIR_OpRTCall::verify() const {
 406   assert(strcmp(Runtime1::name_for_address(addr()), "<unknown function>") != 0, "unknown function");
 407 }
 408 
 409 //-------------------visits--------------------------
 410 
 411 // complete rework of LIR instruction visitor.
 412 // The virtual call for each instruction type is replaced by a big
 413 // switch that adds the operands for each instruction
 414 
 415 void LIR_OpVisitState::visit(LIR_Op* op) {
 416   // copy information from the LIR_Op
 417   reset();
 418   set_op(op);
 419 
 420   switch (op->code()) {
 421 
 422 // LIR_Op0
 423     case lir_word_align:               // result and info always invalid
 424     case lir_backwardbranch_target:    // result and info always invalid
 425     case lir_build_frame:              // result and info always invalid
 426     case lir_fpop_raw:                 // result and info always invalid
 427     case lir_breakpoint:               // result and info always invalid
 428     case lir_membar:                   // result and info always invalid
 429     case lir_membar_acquire:           // result and info always invalid
 430     case lir_membar_release:           // result and info always invalid
 431     case lir_membar_loadload:          // result and info always invalid
 432     case lir_membar_storestore:        // result and info always invalid
 433     case lir_membar_loadstore:         // result and info always invalid
 434     case lir_membar_storeload:         // result and info always invalid
 435     case lir_on_spin_wait:
 436     {
 437       assert(op->as_Op0() != NULL, "must be");
 438       assert(op->_info == NULL, "info not used by this instruction");
 439       assert(op->_result->is_illegal(), "not used");
 440       break;
 441     }
 442 
 443     case lir_nop:                      // may have info, result always invalid
 444     case lir_std_entry:                // may have result, info always invalid
 445     case lir_osr_entry:                // may have result, info always invalid
 446     case lir_get_thread:               // may have result, info always invalid
 447     {
 448       assert(op->as_Op0() != NULL, "must be");
 449       if (op->_info != NULL)           do_info(op->_info);
 450       if (op->_result->is_valid())     do_output(op->_result);
 451       break;
 452     }
 453 
 454 
 455 // LIR_OpLabel
 456     case lir_label:                    // result and info always invalid
 457     {
 458       assert(op->as_OpLabel() != 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 
 465 // LIR_Op1
 466     case lir_fxch:           // input always valid, result and info always invalid
 467     case lir_fld:            // input always valid, result and info always invalid
 468     case lir_push:           // input always valid, result and info always invalid
 469     case lir_pop:            // input always valid, result and info always invalid
 470     case lir_return:         // input always valid, result and info always invalid
 471     case lir_leal:           // input and result always valid, info always invalid
 472     case lir_monaddr:        // input and result always valid, info always invalid
 473     case lir_null_check:     // input and info always valid, result always invalid
 474     case lir_move:           // input and result always valid, may have info
 475     case lir_pack64:         // input and result always valid
 476     case lir_unpack64:       // input and result always valid
 477     {
 478       assert(op->as_Op1() != NULL, "must be");
 479       LIR_Op1* op1 = (LIR_Op1*)op;
 480 
 481       if (op1->_info)                  do_info(op1->_info);
 482       if (op1->_opr->is_valid())       do_input(op1->_opr);
 483       if (op1->_result->is_valid())    do_output(op1->_result);
 484 
 485       break;
 486     }
 487 
 488     case lir_safepoint:
 489     {
 490       assert(op->as_Op1() != NULL, "must be");
 491       LIR_Op1* op1 = (LIR_Op1*)op;
 492 
 493       assert(op1->_info != NULL, "");  do_info(op1->_info);
 494       if (op1->_opr->is_valid())       do_temp(op1->_opr); // safepoints on SPARC need temporary register
 495       assert(op1->_result->is_illegal(), "safepoint does not produce value");
 496 
 497       break;
 498     }
 499 
 500 // LIR_OpConvert;
 501     case lir_convert:        // input and result always valid, info always invalid
 502     {
 503       assert(op->as_OpConvert() != NULL, "must be");
 504       LIR_OpConvert* opConvert = (LIR_OpConvert*)op;
 505 
 506       assert(opConvert->_info == NULL, "must be");
 507       if (opConvert->_opr->is_valid())       do_input(opConvert->_opr);
 508       if (opConvert->_result->is_valid())    do_output(opConvert->_result);
 509 #ifdef PPC32
 510       if (opConvert->_tmp1->is_valid())      do_temp(opConvert->_tmp1);
 511       if (opConvert->_tmp2->is_valid())      do_temp(opConvert->_tmp2);
 512 #endif
 513       do_stub(opConvert->_stub);
 514 
 515       break;
 516     }
 517 
 518 // LIR_OpBranch;
 519     case lir_branch:                   // may have info, input and result register always invalid
 520     case lir_cond_float_branch:        // may have info, input and result register always invalid
 521     {
 522       assert(op->as_OpBranch() != NULL, "must be");
 523       LIR_OpBranch* opBranch = (LIR_OpBranch*)op;
 524 
 525       if (opBranch->_info != NULL)     do_info(opBranch->_info);
 526       assert(opBranch->_result->is_illegal(), "not used");
 527       if (opBranch->_stub != NULL)     opBranch->stub()->visit(this);
 528 
 529       break;
 530     }
 531 
 532 
 533 // LIR_OpAllocObj
 534     case lir_alloc_object:
 535     {
 536       assert(op->as_OpAllocObj() != NULL, "must be");
 537       LIR_OpAllocObj* opAllocObj = (LIR_OpAllocObj*)op;
 538 
 539       if (opAllocObj->_info)                     do_info(opAllocObj->_info);
 540       if (opAllocObj->_opr->is_valid()) {        do_input(opAllocObj->_opr);
 541                                                  do_temp(opAllocObj->_opr);
 542                                         }
 543       if (opAllocObj->_tmp1->is_valid())         do_temp(opAllocObj->_tmp1);
 544       if (opAllocObj->_tmp2->is_valid())         do_temp(opAllocObj->_tmp2);
 545       if (opAllocObj->_tmp3->is_valid())         do_temp(opAllocObj->_tmp3);
 546       if (opAllocObj->_tmp4->is_valid())         do_temp(opAllocObj->_tmp4);
 547       if (opAllocObj->_result->is_valid())       do_output(opAllocObj->_result);
 548                                                  do_stub(opAllocObj->_stub);
 549       break;
 550     }
 551 
 552 
 553 // LIR_OpRoundFP;
 554     case lir_roundfp: {
 555       assert(op->as_OpRoundFP() != NULL, "must be");
 556       LIR_OpRoundFP* opRoundFP = (LIR_OpRoundFP*)op;
 557 
 558       assert(op->_info == NULL, "info not used by this instruction");
 559       assert(opRoundFP->_tmp->is_illegal(), "not used");
 560       do_input(opRoundFP->_opr);
 561       do_output(opRoundFP->_result);
 562 
 563       break;
 564     }
 565 
 566 
 567 // LIR_Op2
 568     case lir_cmp:
 569     case lir_cmp_l2i:
 570     case lir_ucmp_fd2i:
 571     case lir_cmp_fd2i:
 572     case lir_add:
 573     case lir_sub:
 574     case lir_mul:
 575     case lir_div:
 576     case lir_rem:
 577     case lir_sqrt:
 578     case lir_abs:
 579     case lir_neg:
 580     case lir_logic_and:
 581     case lir_logic_or:
 582     case lir_logic_xor:
 583     case lir_shl:
 584     case lir_shr:
 585     case lir_ushr:
 586     case lir_xadd:
 587     case lir_xchg:
 588     case lir_assert:
 589     {
 590       assert(op->as_Op2() != NULL, "must be");
 591       LIR_Op2* op2 = (LIR_Op2*)op;
 592       assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
 593              op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
 594 
 595       if (op2->_info)                     do_info(op2->_info);
 596       if (op2->_opr1->is_valid())         do_input(op2->_opr1);
 597       if (op2->_opr2->is_valid())         do_input(op2->_opr2);
 598       if (op2->_tmp1->is_valid())         do_temp(op2->_tmp1);
 599       if (op2->_result->is_valid())       do_output(op2->_result);
 600       if (op->code() == lir_xchg || op->code() == lir_xadd) {
 601         // on ARM and PPC, return value is loaded first so could
 602         // destroy inputs. On other platforms that implement those
 603         // (x86, sparc), the extra constrainsts are harmless.
 604         if (op2->_opr1->is_valid())       do_temp(op2->_opr1);
 605         if (op2->_opr2->is_valid())       do_temp(op2->_opr2);
 606       }
 607 
 608       break;
 609     }
 610 
 611     // special handling for cmove: right input operand must not be equal
 612     // to the result operand, otherwise the backend fails
 613     case lir_cmove:
 614     {
 615       assert(op->as_Op2() != NULL, "must be");
 616       LIR_Op2* op2 = (LIR_Op2*)op;
 617 
 618       assert(op2->_info == NULL && op2->_tmp1->is_illegal() && op2->_tmp2->is_illegal() &&
 619              op2->_tmp3->is_illegal() && op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
 620       assert(op2->_opr1->is_valid() && op2->_opr2->is_valid() && op2->_result->is_valid(), "used");
 621 
 622       do_input(op2->_opr1);
 623       do_input(op2->_opr2);
 624       do_temp(op2->_opr2);
 625       do_output(op2->_result);
 626 
 627       break;
 628     }
 629 
 630     // vspecial handling for strict operations: register input operands
 631     // as temp to guarantee that they do not overlap with other
 632     // registers
 633     case lir_mul_strictfp:
 634     case lir_div_strictfp:
 635     {
 636       assert(op->as_Op2() != NULL, "must be");
 637       LIR_Op2* op2 = (LIR_Op2*)op;
 638 
 639       assert(op2->_info == NULL, "not used");
 640       assert(op2->_opr1->is_valid(), "used");
 641       assert(op2->_opr2->is_valid(), "used");
 642       assert(op2->_result->is_valid(), "used");
 643       assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
 644              op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
 645 
 646       do_input(op2->_opr1); do_temp(op2->_opr1);
 647       do_input(op2->_opr2); do_temp(op2->_opr2);
 648       if (op2->_tmp1->is_valid()) do_temp(op2->_tmp1);
 649       do_output(op2->_result);
 650 
 651       break;
 652     }
 653 
 654     case lir_throw: {
 655       assert(op->as_Op2() != NULL, "must be");
 656       LIR_Op2* op2 = (LIR_Op2*)op;
 657 
 658       if (op2->_info)                     do_info(op2->_info);
 659       if (op2->_opr1->is_valid())         do_temp(op2->_opr1);
 660       if (op2->_opr2->is_valid())         do_input(op2->_opr2); // exception object is input parameter
 661       assert(op2->_result->is_illegal(), "no result");
 662       assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
 663              op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
 664 
 665       break;
 666     }
 667 
 668     case lir_unwind: {
 669       assert(op->as_Op1() != NULL, "must be");
 670       LIR_Op1* op1 = (LIR_Op1*)op;
 671 
 672       assert(op1->_info == NULL, "no info");
 673       assert(op1->_opr->is_valid(), "exception oop");         do_input(op1->_opr);
 674       assert(op1->_result->is_illegal(), "no result");
 675 
 676       break;
 677     }
 678 
 679 // LIR_Op3
 680     case lir_idiv:
 681     case lir_irem: {
 682       assert(op->as_Op3() != NULL, "must be");
 683       LIR_Op3* op3= (LIR_Op3*)op;
 684 
 685       if (op3->_info)                     do_info(op3->_info);
 686       if (op3->_opr1->is_valid())         do_input(op3->_opr1);
 687 
 688       // second operand is input and temp, so ensure that second operand
 689       // and third operand get not the same register
 690       if (op3->_opr2->is_valid())         do_input(op3->_opr2);
 691       if (op3->_opr2->is_valid())         do_temp(op3->_opr2);
 692       if (op3->_opr3->is_valid())         do_temp(op3->_opr3);
 693 
 694       if (op3->_result->is_valid())       do_output(op3->_result);
 695 
 696       break;
 697     }
 698 
 699     case lir_fmad:
 700     case lir_fmaf: {
 701       assert(op->as_Op3() != NULL, "must be");
 702       LIR_Op3* op3= (LIR_Op3*)op;
 703       assert(op3->_info == NULL, "no info");
 704       do_input(op3->_opr1);
 705       do_input(op3->_opr2);
 706       do_input(op3->_opr3);
 707       do_output(op3->_result);
 708       break;
 709     }
 710 
 711 // LIR_OpJavaCall
 712     case lir_static_call:
 713     case lir_optvirtual_call:
 714     case lir_icvirtual_call:
 715     case lir_virtual_call:
 716     case lir_dynamic_call: {
 717       LIR_OpJavaCall* opJavaCall = op->as_OpJavaCall();
 718       assert(opJavaCall != NULL, "must be");
 719 
 720       if (opJavaCall->_receiver->is_valid())     do_input(opJavaCall->_receiver);
 721 
 722       // only visit register parameters
 723       int n = opJavaCall->_arguments->length();
 724       for (int i = opJavaCall->_receiver->is_valid() ? 1 : 0; i < n; i++) {
 725         if (!opJavaCall->_arguments->at(i)->is_pointer()) {
 726           do_input(*opJavaCall->_arguments->adr_at(i));
 727         }
 728       }
 729 
 730       if (opJavaCall->_info)                     do_info(opJavaCall->_info);
 731       if (FrameMap::method_handle_invoke_SP_save_opr() != LIR_OprFact::illegalOpr &&
 732           opJavaCall->is_method_handle_invoke()) {
 733         opJavaCall->_method_handle_invoke_SP_save_opr = FrameMap::method_handle_invoke_SP_save_opr();
 734         do_temp(opJavaCall->_method_handle_invoke_SP_save_opr);
 735       }
 736       do_call();
 737       if (opJavaCall->_result->is_valid())       do_output(opJavaCall->_result);
 738 
 739       break;
 740     }
 741 
 742 
 743 // LIR_OpRTCall
 744     case lir_rtcall: {
 745       assert(op->as_OpRTCall() != NULL, "must be");
 746       LIR_OpRTCall* opRTCall = (LIR_OpRTCall*)op;
 747 
 748       // only visit register parameters
 749       int n = opRTCall->_arguments->length();
 750       for (int i = 0; i < n; i++) {
 751         if (!opRTCall->_arguments->at(i)->is_pointer()) {
 752           do_input(*opRTCall->_arguments->adr_at(i));
 753         }
 754       }
 755       if (opRTCall->_info)                     do_info(opRTCall->_info);
 756       if (opRTCall->_tmp->is_valid())          do_temp(opRTCall->_tmp);
 757       do_call();
 758       if (opRTCall->_result->is_valid())       do_output(opRTCall->_result);
 759 
 760       break;
 761     }
 762 
 763 
 764 // LIR_OpArrayCopy
 765     case lir_arraycopy: {
 766       assert(op->as_OpArrayCopy() != NULL, "must be");
 767       LIR_OpArrayCopy* opArrayCopy = (LIR_OpArrayCopy*)op;
 768 
 769       assert(opArrayCopy->_result->is_illegal(), "unused");
 770       assert(opArrayCopy->_src->is_valid(), "used");          do_input(opArrayCopy->_src);     do_temp(opArrayCopy->_src);
 771       assert(opArrayCopy->_src_pos->is_valid(), "used");      do_input(opArrayCopy->_src_pos); do_temp(opArrayCopy->_src_pos);
 772       assert(opArrayCopy->_dst->is_valid(), "used");          do_input(opArrayCopy->_dst);     do_temp(opArrayCopy->_dst);
 773       assert(opArrayCopy->_dst_pos->is_valid(), "used");      do_input(opArrayCopy->_dst_pos); do_temp(opArrayCopy->_dst_pos);
 774       assert(opArrayCopy->_length->is_valid(), "used");       do_input(opArrayCopy->_length);  do_temp(opArrayCopy->_length);
 775       assert(opArrayCopy->_tmp->is_valid(), "used");          do_temp(opArrayCopy->_tmp);
 776       if (opArrayCopy->_info)                     do_info(opArrayCopy->_info);
 777 
 778       // the implementation of arraycopy always has a call into the runtime
 779       do_call();
 780 
 781       break;
 782     }
 783 
 784 
 785 // LIR_OpUpdateCRC32
 786     case lir_updatecrc32: {
 787       assert(op->as_OpUpdateCRC32() != NULL, "must be");
 788       LIR_OpUpdateCRC32* opUp = (LIR_OpUpdateCRC32*)op;
 789 
 790       assert(opUp->_crc->is_valid(), "used");          do_input(opUp->_crc);     do_temp(opUp->_crc);
 791       assert(opUp->_val->is_valid(), "used");          do_input(opUp->_val);     do_temp(opUp->_val);
 792       assert(opUp->_result->is_valid(), "used");       do_output(opUp->_result);
 793       assert(opUp->_info == NULL, "no info for LIR_OpUpdateCRC32");
 794 
 795       break;
 796     }
 797 
 798 
 799 // LIR_OpLock
 800     case lir_lock:
 801     case lir_unlock: {
 802       assert(op->as_OpLock() != NULL, "must be");
 803       LIR_OpLock* opLock = (LIR_OpLock*)op;
 804 
 805       if (opLock->_info)                          do_info(opLock->_info);
 806 
 807       // TODO: check if these operands really have to be temp
 808       // (or if input is sufficient). This may have influence on the oop map!
 809       assert(opLock->_lock->is_valid(), "used");  do_temp(opLock->_lock);
 810       assert(opLock->_hdr->is_valid(),  "used");  do_temp(opLock->_hdr);
 811       assert(opLock->_obj->is_valid(),  "used");  do_temp(opLock->_obj);
 812 
 813       if (opLock->_scratch->is_valid())           do_temp(opLock->_scratch);
 814       assert(opLock->_result->is_illegal(), "unused");
 815 
 816       do_stub(opLock->_stub);
 817 
 818       break;
 819     }
 820 
 821 
 822 // LIR_OpDelay
 823     case lir_delay_slot: {
 824       assert(op->as_OpDelay() != NULL, "must be");
 825       LIR_OpDelay* opDelay = (LIR_OpDelay*)op;
 826 
 827       visit(opDelay->delay_op());
 828       break;
 829     }
 830 
 831 // LIR_OpTypeCheck
 832     case lir_instanceof:
 833     case lir_checkcast:
 834     case lir_store_check: {
 835       assert(op->as_OpTypeCheck() != NULL, "must be");
 836       LIR_OpTypeCheck* opTypeCheck = (LIR_OpTypeCheck*)op;
 837 
 838       if (opTypeCheck->_info_for_exception)       do_info(opTypeCheck->_info_for_exception);
 839       if (opTypeCheck->_info_for_patch)           do_info(opTypeCheck->_info_for_patch);
 840       if (opTypeCheck->_object->is_valid())       do_input(opTypeCheck->_object);
 841       if (op->code() == lir_store_check && opTypeCheck->_object->is_valid()) {
 842         do_temp(opTypeCheck->_object);
 843       }
 844       if (opTypeCheck->_array->is_valid())        do_input(opTypeCheck->_array);
 845       if (opTypeCheck->_tmp1->is_valid())         do_temp(opTypeCheck->_tmp1);
 846       if (opTypeCheck->_tmp2->is_valid())         do_temp(opTypeCheck->_tmp2);
 847       if (opTypeCheck->_tmp3->is_valid())         do_temp(opTypeCheck->_tmp3);
 848       if (opTypeCheck->_result->is_valid())       do_output(opTypeCheck->_result);
 849                                                   do_stub(opTypeCheck->_stub);
 850       break;
 851     }
 852 
 853 // LIR_OpCompareAndSwap
 854     case lir_cas_long:
 855     case lir_cas_obj:
 856     case lir_cas_int: {
 857       assert(op->as_OpCompareAndSwap() != NULL, "must be");
 858       LIR_OpCompareAndSwap* opCompareAndSwap = (LIR_OpCompareAndSwap*)op;
 859 
 860       assert(opCompareAndSwap->_addr->is_valid(),      "used");
 861       assert(opCompareAndSwap->_cmp_value->is_valid(), "used");
 862       assert(opCompareAndSwap->_new_value->is_valid(), "used");
 863       if (opCompareAndSwap->_info)                    do_info(opCompareAndSwap->_info);
 864                                                       do_input(opCompareAndSwap->_addr);
 865                                                       do_temp(opCompareAndSwap->_addr);
 866                                                       do_input(opCompareAndSwap->_cmp_value);
 867                                                       do_temp(opCompareAndSwap->_cmp_value);
 868                                                       do_input(opCompareAndSwap->_new_value);
 869                                                       do_temp(opCompareAndSwap->_new_value);
 870       if (opCompareAndSwap->_tmp1->is_valid())        do_temp(opCompareAndSwap->_tmp1);
 871       if (opCompareAndSwap->_tmp2->is_valid())        do_temp(opCompareAndSwap->_tmp2);
 872       if (opCompareAndSwap->_result->is_valid())      do_output(opCompareAndSwap->_result);
 873 
 874       break;
 875     }
 876 
 877 
 878 // LIR_OpAllocArray;
 879     case lir_alloc_array: {
 880       assert(op->as_OpAllocArray() != NULL, "must be");
 881       LIR_OpAllocArray* opAllocArray = (LIR_OpAllocArray*)op;
 882 
 883       if (opAllocArray->_info)                        do_info(opAllocArray->_info);
 884       if (opAllocArray->_klass->is_valid())           do_input(opAllocArray->_klass); do_temp(opAllocArray->_klass);
 885       if (opAllocArray->_len->is_valid())             do_input(opAllocArray->_len);   do_temp(opAllocArray->_len);
 886       if (opAllocArray->_tmp1->is_valid())            do_temp(opAllocArray->_tmp1);
 887       if (opAllocArray->_tmp2->is_valid())            do_temp(opAllocArray->_tmp2);
 888       if (opAllocArray->_tmp3->is_valid())            do_temp(opAllocArray->_tmp3);
 889       if (opAllocArray->_tmp4->is_valid())            do_temp(opAllocArray->_tmp4);
 890       if (opAllocArray->_result->is_valid())          do_output(opAllocArray->_result);
 891                                                       do_stub(opAllocArray->_stub);
 892       break;
 893     }
 894 
 895 // LIR_OpProfileCall:
 896     case lir_profile_call: {
 897       assert(op->as_OpProfileCall() != NULL, "must be");
 898       LIR_OpProfileCall* opProfileCall = (LIR_OpProfileCall*)op;
 899 
 900       if (opProfileCall->_recv->is_valid())              do_temp(opProfileCall->_recv);
 901       assert(opProfileCall->_mdo->is_valid(), "used");   do_temp(opProfileCall->_mdo);
 902       assert(opProfileCall->_tmp1->is_valid(), "used");  do_temp(opProfileCall->_tmp1);
 903       break;
 904     }
 905 
 906 // LIR_OpProfileType:
 907     case lir_profile_type: {
 908       assert(op->as_OpProfileType() != NULL, "must be");
 909       LIR_OpProfileType* opProfileType = (LIR_OpProfileType*)op;
 910 
 911       do_input(opProfileType->_mdp); do_temp(opProfileType->_mdp);
 912       do_input(opProfileType->_obj);
 913       do_temp(opProfileType->_tmp);
 914       break;
 915     }
 916   default:
 917     op->visit(this);
 918   }
 919 }
 920 
 921 void LIR_Op::visit(LIR_OpVisitState* state) {
 922   ShouldNotReachHere();
 923 }
 924 
 925 void LIR_OpVisitState::do_stub(CodeStub* stub) {
 926   if (stub != NULL) {
 927     stub->visit(this);
 928   }
 929 }
 930 
 931 XHandlers* LIR_OpVisitState::all_xhandler() {
 932   XHandlers* result = NULL;
 933 
 934   int i;
 935   for (i = 0; i < info_count(); i++) {
 936     if (info_at(i)->exception_handlers() != NULL) {
 937       result = info_at(i)->exception_handlers();
 938       break;
 939     }
 940   }
 941 
 942 #ifdef ASSERT
 943   for (i = 0; i < info_count(); i++) {
 944     assert(info_at(i)->exception_handlers() == NULL ||
 945            info_at(i)->exception_handlers() == result,
 946            "only one xhandler list allowed per LIR-operation");
 947   }
 948 #endif
 949 
 950   if (result != NULL) {
 951     return result;
 952   } else {
 953     return new XHandlers();
 954   }
 955 
 956   return result;
 957 }
 958 
 959 
 960 #ifdef ASSERT
 961 bool LIR_OpVisitState::no_operands(LIR_Op* op) {
 962   visit(op);
 963 
 964   return opr_count(inputMode) == 0 &&
 965          opr_count(outputMode) == 0 &&
 966          opr_count(tempMode) == 0 &&
 967          info_count() == 0 &&
 968          !has_call() &&
 969          !has_slow_case();
 970 }
 971 #endif
 972 
 973 //---------------------------------------------------
 974 
 975 
 976 void LIR_OpJavaCall::emit_code(LIR_Assembler* masm) {
 977   masm->emit_call(this);
 978 }
 979 
 980 void LIR_OpRTCall::emit_code(LIR_Assembler* masm) {
 981   masm->emit_rtcall(this);
 982 }
 983 
 984 void LIR_OpLabel::emit_code(LIR_Assembler* masm) {
 985   masm->emit_opLabel(this);
 986 }
 987 
 988 void LIR_OpArrayCopy::emit_code(LIR_Assembler* masm) {
 989   masm->emit_arraycopy(this);
 990   masm->append_code_stub(stub());
 991 }
 992 
 993 void LIR_OpUpdateCRC32::emit_code(LIR_Assembler* masm) {
 994   masm->emit_updatecrc32(this);
 995 }
 996 
 997 void LIR_Op0::emit_code(LIR_Assembler* masm) {
 998   masm->emit_op0(this);
 999 }
1000 
1001 void LIR_Op1::emit_code(LIR_Assembler* masm) {
1002   masm->emit_op1(this);
1003 }
1004 
1005 void LIR_OpAllocObj::emit_code(LIR_Assembler* masm) {
1006   masm->emit_alloc_obj(this);
1007   masm->append_code_stub(stub());
1008 }
1009 
1010 void LIR_OpBranch::emit_code(LIR_Assembler* masm) {
1011   masm->emit_opBranch(this);
1012   if (stub()) {
1013     masm->append_code_stub(stub());
1014   }
1015 }
1016 
1017 void LIR_OpConvert::emit_code(LIR_Assembler* masm) {
1018   masm->emit_opConvert(this);
1019   if (stub() != NULL) {
1020     masm->append_code_stub(stub());
1021   }
1022 }
1023 
1024 void LIR_Op2::emit_code(LIR_Assembler* masm) {
1025   masm->emit_op2(this);
1026 }
1027 
1028 void LIR_OpAllocArray::emit_code(LIR_Assembler* masm) {
1029   masm->emit_alloc_array(this);
1030   masm->append_code_stub(stub());
1031 }
1032 
1033 void LIR_OpTypeCheck::emit_code(LIR_Assembler* masm) {
1034   masm->emit_opTypeCheck(this);
1035   if (stub()) {
1036     masm->append_code_stub(stub());
1037   }
1038 }
1039 
1040 void LIR_OpCompareAndSwap::emit_code(LIR_Assembler* masm) {
1041   masm->emit_compare_and_swap(this);
1042 }
1043 
1044 void LIR_Op3::emit_code(LIR_Assembler* masm) {
1045   masm->emit_op3(this);
1046 }
1047 
1048 void LIR_OpLock::emit_code(LIR_Assembler* masm) {
1049   masm->emit_lock(this);
1050   if (stub()) {
1051     masm->append_code_stub(stub());
1052   }
1053 }
1054 
1055 #ifdef ASSERT
1056 void LIR_OpAssert::emit_code(LIR_Assembler* masm) {
1057   masm->emit_assert(this);
1058 }
1059 #endif
1060 
1061 void LIR_OpDelay::emit_code(LIR_Assembler* masm) {
1062   masm->emit_delay(this);
1063 }
1064 
1065 void LIR_OpProfileCall::emit_code(LIR_Assembler* masm) {
1066   masm->emit_profile_call(this);
1067 }
1068 
1069 void LIR_OpProfileType::emit_code(LIR_Assembler* masm) {
1070   masm->emit_profile_type(this);
1071 }
1072 
1073 // LIR_List
1074 LIR_List::LIR_List(Compilation* compilation, BlockBegin* block)
1075   : _operations(8)
1076   , _compilation(compilation)
1077 #ifndef PRODUCT
1078   , _block(block)
1079 #endif
1080 #ifdef ASSERT
1081   , _file(NULL)
1082   , _line(0)
1083 #endif
1084 { }
1085 
1086 
1087 #ifdef ASSERT
1088 void LIR_List::set_file_and_line(const char * file, int line) {
1089   const char * f = strrchr(file, '/');
1090   if (f == NULL) f = strrchr(file, '\\');
1091   if (f == NULL) {
1092     f = file;
1093   } else {
1094     f++;
1095   }
1096   _file = f;
1097   _line = line;
1098 }
1099 #endif
1100 
1101 
1102 void LIR_List::append(LIR_InsertionBuffer* buffer) {
1103   assert(this == buffer->lir_list(), "wrong lir list");
1104   const int n = _operations.length();
1105 
1106   if (buffer->number_of_ops() > 0) {
1107     // increase size of instructions list
1108     _operations.at_grow(n + buffer->number_of_ops() - 1, NULL);
1109     // insert ops from buffer into instructions list
1110     int op_index = buffer->number_of_ops() - 1;
1111     int ip_index = buffer->number_of_insertion_points() - 1;
1112     int from_index = n - 1;
1113     int to_index = _operations.length() - 1;
1114     for (; ip_index >= 0; ip_index --) {
1115       int index = buffer->index_at(ip_index);
1116       // make room after insertion point
1117       while (index < from_index) {
1118         _operations.at_put(to_index --, _operations.at(from_index --));
1119       }
1120       // insert ops from buffer
1121       for (int i = buffer->count_at(ip_index); i > 0; i --) {
1122         _operations.at_put(to_index --, buffer->op_at(op_index --));
1123       }
1124     }
1125   }
1126 
1127   buffer->finish();
1128 }
1129 
1130 
1131 void LIR_List::oop2reg_patch(jobject o, LIR_Opr reg, CodeEmitInfo* info) {
1132   assert(reg->type() == T_OBJECT, "bad reg");
1133   append(new LIR_Op1(lir_move, LIR_OprFact::oopConst(o),  reg, T_OBJECT, lir_patch_normal, info));
1134 }
1135 
1136 void LIR_List::klass2reg_patch(Metadata* o, LIR_Opr reg, CodeEmitInfo* info) {
1137   assert(reg->type() == T_METADATA, "bad reg");
1138   append(new LIR_Op1(lir_move, LIR_OprFact::metadataConst(o), reg, T_METADATA, lir_patch_normal, info));
1139 }
1140 
1141 void LIR_List::load(LIR_Address* addr, LIR_Opr src, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1142   append(new LIR_Op1(
1143             lir_move,
1144             LIR_OprFact::address(addr),
1145             src,
1146             addr->type(),
1147             patch_code,
1148             info));
1149 }
1150 
1151 
1152 void LIR_List::volatile_load_mem_reg(LIR_Address* address, LIR_Opr dst, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1153   append(new LIR_Op1(
1154             lir_move,
1155             LIR_OprFact::address(address),
1156             dst,
1157             address->type(),
1158             patch_code,
1159             info, lir_move_volatile));
1160 }
1161 
1162 void LIR_List::volatile_load_unsafe_reg(LIR_Opr base, LIR_Opr offset, LIR_Opr dst, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1163   append(new LIR_Op1(
1164             lir_move,
1165             LIR_OprFact::address(new LIR_Address(base, offset, type)),
1166             dst,
1167             type,
1168             patch_code,
1169             info, lir_move_volatile));
1170 }
1171 
1172 
1173 void LIR_List::store_mem_int(jint v, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1174   append(new LIR_Op1(
1175             lir_move,
1176             LIR_OprFact::intConst(v),
1177             LIR_OprFact::address(new LIR_Address(base, offset_in_bytes, type)),
1178             type,
1179             patch_code,
1180             info));
1181 }
1182 
1183 
1184 void LIR_List::store_mem_oop(jobject o, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1185   append(new LIR_Op1(
1186             lir_move,
1187             LIR_OprFact::oopConst(o),
1188             LIR_OprFact::address(new LIR_Address(base, offset_in_bytes, type)),
1189             type,
1190             patch_code,
1191             info));
1192 }
1193 
1194 
1195 void LIR_List::store(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1196   append(new LIR_Op1(
1197             lir_move,
1198             src,
1199             LIR_OprFact::address(addr),
1200             addr->type(),
1201             patch_code,
1202             info));
1203 }
1204 
1205 
1206 void LIR_List::volatile_store_mem_reg(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1207   append(new LIR_Op1(
1208             lir_move,
1209             src,
1210             LIR_OprFact::address(addr),
1211             addr->type(),
1212             patch_code,
1213             info,
1214             lir_move_volatile));
1215 }
1216 
1217 void LIR_List::volatile_store_unsafe_reg(LIR_Opr src, LIR_Opr base, LIR_Opr offset, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1218   append(new LIR_Op1(
1219             lir_move,
1220             src,
1221             LIR_OprFact::address(new LIR_Address(base, offset, type)),
1222             type,
1223             patch_code,
1224             info, lir_move_volatile));
1225 }
1226 
1227 
1228 void LIR_List::idiv(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1229   append(new LIR_Op3(
1230                     lir_idiv,
1231                     left,
1232                     right,
1233                     tmp,
1234                     res,
1235                     info));
1236 }
1237 
1238 
1239 void LIR_List::idiv(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1240   append(new LIR_Op3(
1241                     lir_idiv,
1242                     left,
1243                     LIR_OprFact::intConst(right),
1244                     tmp,
1245                     res,
1246                     info));
1247 }
1248 
1249 
1250 void LIR_List::irem(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1251   append(new LIR_Op3(
1252                     lir_irem,
1253                     left,
1254                     right,
1255                     tmp,
1256                     res,
1257                     info));
1258 }
1259 
1260 
1261 void LIR_List::irem(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1262   append(new LIR_Op3(
1263                     lir_irem,
1264                     left,
1265                     LIR_OprFact::intConst(right),
1266                     tmp,
1267                     res,
1268                     info));
1269 }
1270 
1271 
1272 void LIR_List::cmp_mem_int(LIR_Condition condition, LIR_Opr base, int disp, int c, CodeEmitInfo* info) {
1273   append(new LIR_Op2(
1274                     lir_cmp,
1275                     condition,
1276                     LIR_OprFact::address(new LIR_Address(base, disp, T_INT)),
1277                     LIR_OprFact::intConst(c),
1278                     info));
1279 }
1280 
1281 
1282 void LIR_List::cmp_reg_mem(LIR_Condition condition, LIR_Opr reg, LIR_Address* addr, CodeEmitInfo* info) {
1283   append(new LIR_Op2(
1284                     lir_cmp,
1285                     condition,
1286                     reg,
1287                     LIR_OprFact::address(addr),
1288                     info));
1289 }
1290 
1291 void LIR_List::allocate_object(LIR_Opr dst, LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4,
1292                                int header_size, int object_size, LIR_Opr klass, bool init_check, CodeStub* stub) {
1293   append(new LIR_OpAllocObj(
1294                            klass,
1295                            dst,
1296                            t1,
1297                            t2,
1298                            t3,
1299                            t4,
1300                            header_size,
1301                            object_size,
1302                            init_check,
1303                            stub));
1304 }
1305 
1306 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) {
1307   append(new LIR_OpAllocArray(
1308                            klass,
1309                            len,
1310                            dst,
1311                            t1,
1312                            t2,
1313                            t3,
1314                            t4,
1315                            type,
1316                            stub));
1317 }
1318 
1319 void LIR_List::shift_left(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1320  append(new LIR_Op2(
1321                     lir_shl,
1322                     value,
1323                     count,
1324                     dst,
1325                     tmp));
1326 }
1327 
1328 void LIR_List::shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1329  append(new LIR_Op2(
1330                     lir_shr,
1331                     value,
1332                     count,
1333                     dst,
1334                     tmp));
1335 }
1336 
1337 
1338 void LIR_List::unsigned_shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1339  append(new LIR_Op2(
1340                     lir_ushr,
1341                     value,
1342                     count,
1343                     dst,
1344                     tmp));
1345 }
1346 
1347 void LIR_List::fcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst, bool is_unordered_less) {
1348   append(new LIR_Op2(is_unordered_less ? lir_ucmp_fd2i : lir_cmp_fd2i,
1349                      left,
1350                      right,
1351                      dst));
1352 }
1353 
1354 void LIR_List::lock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info) {
1355   append(new LIR_OpLock(
1356                     lir_lock,
1357                     hdr,
1358                     obj,
1359                     lock,
1360                     scratch,
1361                     stub,
1362                     info));
1363 }
1364 
1365 void LIR_List::unlock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub) {
1366   append(new LIR_OpLock(
1367                     lir_unlock,
1368                     hdr,
1369                     obj,
1370                     lock,
1371                     scratch,
1372                     stub,
1373                     NULL));
1374 }
1375 
1376 
1377 void check_LIR() {
1378   // cannot do the proper checking as PRODUCT and other modes return different results
1379   // guarantee(sizeof(LIR_OprDesc) == wordSize, "may not have a v-table");
1380 }
1381 
1382 
1383 
1384 void LIR_List::checkcast (LIR_Opr result, LIR_Opr object, ciKlass* klass,
1385                           LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
1386                           CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub,
1387                           ciMethod* profiled_method, int profiled_bci) {
1388   LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_checkcast, result, object, klass,
1389                                            tmp1, tmp2, tmp3, fast_check, info_for_exception, info_for_patch, stub);
1390   if (profiled_method != NULL) {
1391     c->set_profiled_method(profiled_method);
1392     c->set_profiled_bci(profiled_bci);
1393     c->set_should_profile(true);
1394   }
1395   append(c);
1396 }
1397 
1398 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, ciMethod* profiled_method, int profiled_bci) {
1399   LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_instanceof, result, object, klass, tmp1, tmp2, tmp3, fast_check, NULL, info_for_patch, NULL);
1400   if (profiled_method != NULL) {
1401     c->set_profiled_method(profiled_method);
1402     c->set_profiled_bci(profiled_bci);
1403     c->set_should_profile(true);
1404   }
1405   append(c);
1406 }
1407 
1408 
1409 void LIR_List::store_check(LIR_Opr object, LIR_Opr array, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3,
1410                            CodeEmitInfo* info_for_exception, ciMethod* profiled_method, int profiled_bci) {
1411   LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_store_check, object, array, tmp1, tmp2, tmp3, info_for_exception);
1412   if (profiled_method != NULL) {
1413     c->set_profiled_method(profiled_method);
1414     c->set_profiled_bci(profiled_bci);
1415     c->set_should_profile(true);
1416   }
1417   append(c);
1418 }
1419 
1420 void LIR_List::null_check(LIR_Opr opr, CodeEmitInfo* info, bool deoptimize_on_null) {
1421   if (deoptimize_on_null) {
1422     // Emit an explicit null check and deoptimize if opr is null
1423     CodeStub* deopt = new DeoptimizeStub(info, Deoptimization::Reason_null_check, Deoptimization::Action_none);
1424     cmp(lir_cond_equal, opr, LIR_OprFact::oopConst(NULL));
1425     branch(lir_cond_equal, T_OBJECT, deopt);
1426   } else {
1427     // Emit an implicit null check
1428     append(new LIR_Op1(lir_null_check, opr, info));
1429   }
1430 }
1431 
1432 void LIR_List::cas_long(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1433                         LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1434   append(new LIR_OpCompareAndSwap(lir_cas_long, addr, cmp_value, new_value, t1, t2, result));
1435 }
1436 
1437 void LIR_List::cas_obj(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1438                        LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1439   append(new LIR_OpCompareAndSwap(lir_cas_obj, addr, cmp_value, new_value, t1, t2, result));
1440 }
1441 
1442 void LIR_List::cas_int(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1443                        LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1444   append(new LIR_OpCompareAndSwap(lir_cas_int, addr, cmp_value, new_value, t1, t2, result));
1445 }
1446 
1447 
1448 #ifdef PRODUCT
1449 
1450 void print_LIR(BlockList* blocks) {
1451 }
1452 
1453 #else
1454 // LIR_OprDesc
1455 void LIR_OprDesc::print() const {
1456   print(tty);
1457 }
1458 
1459 void LIR_OprDesc::print(outputStream* out) const {
1460   if (is_illegal()) {
1461     return;
1462   }
1463 
1464   out->print("[");
1465   if (is_pointer()) {
1466     pointer()->print_value_on(out);
1467   } else if (is_single_stack()) {
1468     out->print("stack:%d", single_stack_ix());
1469   } else if (is_double_stack()) {
1470     out->print("dbl_stack:%d",double_stack_ix());
1471   } else if (is_virtual()) {
1472     out->print("R%d", vreg_number());
1473   } else if (is_single_cpu()) {
1474     out->print("%s", as_register()->name());
1475   } else if (is_double_cpu()) {
1476     out->print("%s", as_register_hi()->name());
1477     out->print("%s", as_register_lo()->name());
1478 #if defined(X86)
1479   } else if (is_single_xmm()) {
1480     out->print("%s", as_xmm_float_reg()->name());
1481   } else if (is_double_xmm()) {
1482     out->print("%s", as_xmm_double_reg()->name());
1483   } else if (is_single_fpu()) {
1484     out->print("fpu%d", fpu_regnr());
1485   } else if (is_double_fpu()) {
1486     out->print("fpu%d", fpu_regnrLo());
1487 #elif defined(AARCH64)
1488   } else if (is_single_fpu()) {
1489     out->print("fpu%d", fpu_regnr());
1490   } else if (is_double_fpu()) {
1491     out->print("fpu%d", fpu_regnrLo());
1492 #elif defined(ARM)
1493   } else if (is_single_fpu()) {
1494     out->print("s%d", fpu_regnr());
1495   } else if (is_double_fpu()) {
1496     out->print("d%d", fpu_regnrLo() >> 1);
1497 #else
1498   } else if (is_single_fpu()) {
1499     out->print("%s", as_float_reg()->name());
1500   } else if (is_double_fpu()) {
1501     out->print("%s", as_double_reg()->name());
1502 #endif
1503 
1504   } else if (is_illegal()) {
1505     out->print("-");
1506   } else {
1507     out->print("Unknown Operand");
1508   }
1509   if (!is_illegal()) {
1510     out->print("|%c", type_char());
1511   }
1512   if (is_register() && is_last_use()) {
1513     out->print("(last_use)");
1514   }
1515   out->print("]");
1516 }
1517 
1518 
1519 // LIR_Address
1520 void LIR_Const::print_value_on(outputStream* out) const {
1521   switch (type()) {
1522     case T_ADDRESS:out->print("address:%d",as_jint());          break;
1523     case T_INT:    out->print("int:%d",   as_jint());           break;
1524     case T_LONG:   out->print("lng:" JLONG_FORMAT, as_jlong()); break;
1525     case T_FLOAT:  out->print("flt:%f",   as_jfloat());         break;
1526     case T_DOUBLE: out->print("dbl:%f",   as_jdouble());        break;
1527     case T_OBJECT: out->print("obj:" INTPTR_FORMAT, p2i(as_jobject()));        break;
1528     case T_METADATA: out->print("metadata:" INTPTR_FORMAT, p2i(as_metadata()));break;
1529     default:       out->print("%3d:0x" UINT64_FORMAT_X, type(), (uint64_t)as_jlong()); break;
1530   }
1531 }
1532 
1533 // LIR_Address
1534 void LIR_Address::print_value_on(outputStream* out) const {
1535   out->print("Base:"); _base->print(out);
1536   if (!_index->is_illegal()) {
1537     out->print(" Index:"); _index->print(out);
1538     switch (scale()) {
1539     case times_1: break;
1540     case times_2: out->print(" * 2"); break;
1541     case times_4: out->print(" * 4"); break;
1542     case times_8: out->print(" * 8"); break;
1543     }
1544   }
1545   out->print(" Disp: " INTX_FORMAT, _disp);
1546 }
1547 
1548 // debug output of block header without InstructionPrinter
1549 //       (because phi functions are not necessary for LIR)
1550 static void print_block(BlockBegin* x) {
1551   // print block id
1552   BlockEnd* end = x->end();
1553   tty->print("B%d ", x->block_id());
1554 
1555   // print flags
1556   if (x->is_set(BlockBegin::std_entry_flag))               tty->print("std ");
1557   if (x->is_set(BlockBegin::osr_entry_flag))               tty->print("osr ");
1558   if (x->is_set(BlockBegin::exception_entry_flag))         tty->print("ex ");
1559   if (x->is_set(BlockBegin::subroutine_entry_flag))        tty->print("jsr ");
1560   if (x->is_set(BlockBegin::backward_branch_target_flag))  tty->print("bb ");
1561   if (x->is_set(BlockBegin::linear_scan_loop_header_flag)) tty->print("lh ");
1562   if (x->is_set(BlockBegin::linear_scan_loop_end_flag))    tty->print("le ");
1563 
1564   // print block bci range
1565   tty->print("[%d, %d] ", x->bci(), (end == NULL ? -1 : end->printable_bci()));
1566 
1567   // print predecessors and successors
1568   if (x->number_of_preds() > 0) {
1569     tty->print("preds: ");
1570     for (int i = 0; i < x->number_of_preds(); i ++) {
1571       tty->print("B%d ", x->pred_at(i)->block_id());
1572     }
1573   }
1574 
1575   if (x->number_of_sux() > 0) {
1576     tty->print("sux: ");
1577     for (int i = 0; i < x->number_of_sux(); i ++) {
1578       tty->print("B%d ", x->sux_at(i)->block_id());
1579     }
1580   }
1581 
1582   // print exception handlers
1583   if (x->number_of_exception_handlers() > 0) {
1584     tty->print("xhandler: ");
1585     for (int i = 0; i < x->number_of_exception_handlers();  i++) {
1586       tty->print("B%d ", x->exception_handler_at(i)->block_id());
1587     }
1588   }
1589 
1590   tty->cr();
1591 }
1592 
1593 void print_LIR(BlockList* blocks) {
1594   tty->print_cr("LIR:");
1595   int i;
1596   for (i = 0; i < blocks->length(); i++) {
1597     BlockBegin* bb = blocks->at(i);
1598     print_block(bb);
1599     tty->print("__id_Instruction___________________________________________"); tty->cr();
1600     bb->lir()->print_instructions();
1601   }
1602 }
1603 
1604 void LIR_List::print_instructions() {
1605   for (int i = 0; i < _operations.length(); i++) {
1606     _operations.at(i)->print(); tty->cr();
1607   }
1608   tty->cr();
1609 }
1610 
1611 // LIR_Ops printing routines
1612 // LIR_Op
1613 void LIR_Op::print_on(outputStream* out) const {
1614   if (id() != -1 || PrintCFGToFile) {
1615     out->print("%4d ", id());
1616   } else {
1617     out->print("     ");
1618   }
1619   out->print("%s ", name());
1620   print_instr(out);
1621   if (info() != NULL) out->print(" [bci:%d]", info()->stack()->bci());
1622 #ifdef ASSERT
1623   if (Verbose && _file != NULL) {
1624     out->print(" (%s:%d)", _file, _line);
1625   }
1626 #endif
1627 }
1628 
1629 const char * LIR_Op::name() const {
1630   const char* s = NULL;
1631   switch(code()) {
1632      // LIR_Op0
1633      case lir_membar:                s = "membar";        break;
1634      case lir_membar_acquire:        s = "membar_acquire"; break;
1635      case lir_membar_release:        s = "membar_release"; break;
1636      case lir_membar_loadload:       s = "membar_loadload";   break;
1637      case lir_membar_storestore:     s = "membar_storestore"; break;
1638      case lir_membar_loadstore:      s = "membar_loadstore";  break;
1639      case lir_membar_storeload:      s = "membar_storeload";  break;
1640      case lir_word_align:            s = "word_align";    break;
1641      case lir_label:                 s = "label";         break;
1642      case lir_nop:                   s = "nop";           break;
1643      case lir_on_spin_wait:          s = "on_spin_wait";  break;
1644      case lir_backwardbranch_target: s = "backbranch";    break;
1645      case lir_std_entry:             s = "std_entry";     break;
1646      case lir_osr_entry:             s = "osr_entry";     break;
1647      case lir_build_frame:           s = "build_frm";     break;
1648      case lir_fpop_raw:              s = "fpop_raw";      break;
1649      case lir_breakpoint:            s = "breakpoint";    break;
1650      case lir_get_thread:            s = "get_thread";    break;
1651      // LIR_Op1
1652      case lir_fxch:                  s = "fxch";          break;
1653      case lir_fld:                   s = "fld";           break;
1654      case lir_push:                  s = "push";          break;
1655      case lir_pop:                   s = "pop";           break;
1656      case lir_null_check:            s = "null_check";    break;
1657      case lir_return:                s = "return";        break;
1658      case lir_safepoint:             s = "safepoint";     break;
1659      case lir_leal:                  s = "leal";          break;
1660      case lir_branch:                s = "branch";        break;
1661      case lir_cond_float_branch:     s = "flt_cond_br";   break;
1662      case lir_move:                  s = "move";          break;
1663      case lir_roundfp:               s = "roundfp";       break;
1664      case lir_rtcall:                s = "rtcall";        break;
1665      case lir_throw:                 s = "throw";         break;
1666      case lir_unwind:                s = "unwind";        break;
1667      case lir_convert:               s = "convert";       break;
1668      case lir_alloc_object:          s = "alloc_obj";     break;
1669      case lir_monaddr:               s = "mon_addr";      break;
1670      case lir_pack64:                s = "pack64";        break;
1671      case lir_unpack64:              s = "unpack64";      break;
1672      // LIR_Op2
1673      case lir_cmp:                   s = "cmp";           break;
1674      case lir_cmp_l2i:               s = "cmp_l2i";       break;
1675      case lir_ucmp_fd2i:             s = "ucomp_fd2i";    break;
1676      case lir_cmp_fd2i:              s = "comp_fd2i";     break;
1677      case lir_cmove:                 s = "cmove";         break;
1678      case lir_add:                   s = "add";           break;
1679      case lir_sub:                   s = "sub";           break;
1680      case lir_mul:                   s = "mul";           break;
1681      case lir_mul_strictfp:          s = "mul_strictfp";  break;
1682      case lir_div:                   s = "div";           break;
1683      case lir_div_strictfp:          s = "div_strictfp";  break;
1684      case lir_rem:                   s = "rem";           break;
1685      case lir_abs:                   s = "abs";           break;
1686      case lir_neg:                   s = "neg";           break;
1687      case lir_sqrt:                  s = "sqrt";          break;
1688      case lir_logic_and:             s = "logic_and";     break;
1689      case lir_logic_or:              s = "logic_or";      break;
1690      case lir_logic_xor:             s = "logic_xor";     break;
1691      case lir_shl:                   s = "shift_left";    break;
1692      case lir_shr:                   s = "shift_right";   break;
1693      case lir_ushr:                  s = "ushift_right";  break;
1694      case lir_alloc_array:           s = "alloc_array";   break;
1695      case lir_xadd:                  s = "xadd";          break;
1696      case lir_xchg:                  s = "xchg";          break;
1697      // LIR_Op3
1698      case lir_idiv:                  s = "idiv";          break;
1699      case lir_irem:                  s = "irem";          break;
1700      case lir_fmad:                  s = "fmad";          break;
1701      case lir_fmaf:                  s = "fmaf";          break;
1702      // LIR_OpJavaCall
1703      case lir_static_call:           s = "static";        break;
1704      case lir_optvirtual_call:       s = "optvirtual";    break;
1705      case lir_icvirtual_call:        s = "icvirtual";     break;
1706      case lir_virtual_call:          s = "virtual";       break;
1707      case lir_dynamic_call:          s = "dynamic";       break;
1708      // LIR_OpArrayCopy
1709      case lir_arraycopy:             s = "arraycopy";     break;
1710      // LIR_OpUpdateCRC32
1711      case lir_updatecrc32:           s = "updatecrc32";   break;
1712      // LIR_OpLock
1713      case lir_lock:                  s = "lock";          break;
1714      case lir_unlock:                s = "unlock";        break;
1715      // LIR_OpDelay
1716      case lir_delay_slot:            s = "delay";         break;
1717      // LIR_OpTypeCheck
1718      case lir_instanceof:            s = "instanceof";    break;
1719      case lir_checkcast:             s = "checkcast";     break;
1720      case lir_store_check:           s = "store_check";   break;
1721      // LIR_OpCompareAndSwap
1722      case lir_cas_long:              s = "cas_long";      break;
1723      case lir_cas_obj:               s = "cas_obj";      break;
1724      case lir_cas_int:               s = "cas_int";      break;
1725      // LIR_OpProfileCall
1726      case lir_profile_call:          s = "profile_call";  break;
1727      // LIR_OpProfileType
1728      case lir_profile_type:          s = "profile_type";  break;
1729      // LIR_OpAssert
1730 #ifdef ASSERT
1731      case lir_assert:                s = "assert";        break;
1732 #endif
1733      case lir_none:                  ShouldNotReachHere();break;
1734     default:                         s = "illegal_op";    break;
1735   }
1736   return s;
1737 }
1738 
1739 // LIR_OpJavaCall
1740 void LIR_OpJavaCall::print_instr(outputStream* out) const {
1741   out->print("call: ");
1742   out->print("[addr: " INTPTR_FORMAT "]", p2i(address()));
1743   if (receiver()->is_valid()) {
1744     out->print(" [recv: ");   receiver()->print(out);   out->print("]");
1745   }
1746   if (result_opr()->is_valid()) {
1747     out->print(" [result: "); result_opr()->print(out); out->print("]");
1748   }
1749 }
1750 
1751 // LIR_OpLabel
1752 void LIR_OpLabel::print_instr(outputStream* out) const {
1753   out->print("[label:" INTPTR_FORMAT "]", p2i(_label));
1754 }
1755 
1756 // LIR_OpArrayCopy
1757 void LIR_OpArrayCopy::print_instr(outputStream* out) const {
1758   src()->print(out);     out->print(" ");
1759   src_pos()->print(out); out->print(" ");
1760   dst()->print(out);     out->print(" ");
1761   dst_pos()->print(out); out->print(" ");
1762   length()->print(out);  out->print(" ");
1763   tmp()->print(out);     out->print(" ");
1764 }
1765 
1766 // LIR_OpUpdateCRC32
1767 void LIR_OpUpdateCRC32::print_instr(outputStream* out) const {
1768   crc()->print(out);     out->print(" ");
1769   val()->print(out);     out->print(" ");
1770   result_opr()->print(out); out->print(" ");
1771 }
1772 
1773 // LIR_OpCompareAndSwap
1774 void LIR_OpCompareAndSwap::print_instr(outputStream* out) const {
1775   addr()->print(out);      out->print(" ");
1776   cmp_value()->print(out); out->print(" ");
1777   new_value()->print(out); out->print(" ");
1778   tmp1()->print(out);      out->print(" ");
1779   tmp2()->print(out);      out->print(" ");
1780 
1781 }
1782 
1783 // LIR_Op0
1784 void LIR_Op0::print_instr(outputStream* out) const {
1785   result_opr()->print(out);
1786 }
1787 
1788 // LIR_Op1
1789 const char * LIR_Op1::name() const {
1790   if (code() == lir_move) {
1791     switch (move_kind()) {
1792     case lir_move_normal:
1793       return "move";
1794     case lir_move_unaligned:
1795       return "unaligned move";
1796     case lir_move_volatile:
1797       return "volatile_move";
1798     case lir_move_wide:
1799       return "wide_move";
1800     default:
1801       ShouldNotReachHere();
1802     return "illegal_op";
1803     }
1804   } else {
1805     return LIR_Op::name();
1806   }
1807 }
1808 
1809 
1810 void LIR_Op1::print_instr(outputStream* out) const {
1811   _opr->print(out);         out->print(" ");
1812   result_opr()->print(out); out->print(" ");
1813   print_patch_code(out, patch_code());
1814 }
1815 
1816 
1817 // LIR_Op1
1818 void LIR_OpRTCall::print_instr(outputStream* out) const {
1819   intx a = (intx)addr();
1820   out->print("%s", Runtime1::name_for_address(addr()));
1821   out->print(" ");
1822   tmp()->print(out);
1823 }
1824 
1825 void LIR_Op1::print_patch_code(outputStream* out, LIR_PatchCode code) {
1826   switch(code) {
1827     case lir_patch_none:                                 break;
1828     case lir_patch_low:    out->print("[patch_low]");    break;
1829     case lir_patch_high:   out->print("[patch_high]");   break;
1830     case lir_patch_normal: out->print("[patch_normal]"); break;
1831     default: ShouldNotReachHere();
1832   }
1833 }
1834 
1835 // LIR_OpBranch
1836 void LIR_OpBranch::print_instr(outputStream* out) const {
1837   print_condition(out, cond());             out->print(" ");
1838   if (block() != NULL) {
1839     out->print("[B%d] ", block()->block_id());
1840   } else if (stub() != NULL) {
1841     out->print("[");
1842     stub()->print_name(out);
1843     out->print(": " INTPTR_FORMAT "]", p2i(stub()));
1844     if (stub()->info() != NULL) out->print(" [bci:%d]", stub()->info()->stack()->bci());
1845   } else {
1846     out->print("[label:" INTPTR_FORMAT "] ", p2i(label()));
1847   }
1848   if (ublock() != NULL) {
1849     out->print("unordered: [B%d] ", ublock()->block_id());
1850   }
1851 }
1852 
1853 void LIR_Op::print_condition(outputStream* out, LIR_Condition cond) {
1854   switch(cond) {
1855     case lir_cond_equal:           out->print("[EQ]");      break;
1856     case lir_cond_notEqual:        out->print("[NE]");      break;
1857     case lir_cond_less:            out->print("[LT]");      break;
1858     case lir_cond_lessEqual:       out->print("[LE]");      break;
1859     case lir_cond_greaterEqual:    out->print("[GE]");      break;
1860     case lir_cond_greater:         out->print("[GT]");      break;
1861     case lir_cond_belowEqual:      out->print("[BE]");      break;
1862     case lir_cond_aboveEqual:      out->print("[AE]");      break;
1863     case lir_cond_always:          out->print("[AL]");      break;
1864     default:                       out->print("[%d]",cond); break;
1865   }
1866 }
1867 
1868 // LIR_OpConvert
1869 void LIR_OpConvert::print_instr(outputStream* out) const {
1870   print_bytecode(out, bytecode());
1871   in_opr()->print(out);                  out->print(" ");
1872   result_opr()->print(out);              out->print(" ");
1873 #ifdef PPC32
1874   if(tmp1()->is_valid()) {
1875     tmp1()->print(out); out->print(" ");
1876     tmp2()->print(out); out->print(" ");
1877   }
1878 #endif
1879 }
1880 
1881 void LIR_OpConvert::print_bytecode(outputStream* out, Bytecodes::Code code) {
1882   switch(code) {
1883     case Bytecodes::_d2f: out->print("[d2f] "); break;
1884     case Bytecodes::_d2i: out->print("[d2i] "); break;
1885     case Bytecodes::_d2l: out->print("[d2l] "); break;
1886     case Bytecodes::_f2d: out->print("[f2d] "); break;
1887     case Bytecodes::_f2i: out->print("[f2i] "); break;
1888     case Bytecodes::_f2l: out->print("[f2l] "); break;
1889     case Bytecodes::_i2b: out->print("[i2b] "); break;
1890     case Bytecodes::_i2c: out->print("[i2c] "); break;
1891     case Bytecodes::_i2d: out->print("[i2d] "); break;
1892     case Bytecodes::_i2f: out->print("[i2f] "); break;
1893     case Bytecodes::_i2l: out->print("[i2l] "); break;
1894     case Bytecodes::_i2s: out->print("[i2s] "); break;
1895     case Bytecodes::_l2i: out->print("[l2i] "); break;
1896     case Bytecodes::_l2f: out->print("[l2f] "); break;
1897     case Bytecodes::_l2d: out->print("[l2d] "); break;
1898     default:
1899       out->print("[?%d]",code);
1900     break;
1901   }
1902 }
1903 
1904 void LIR_OpAllocObj::print_instr(outputStream* out) const {
1905   klass()->print(out);                      out->print(" ");
1906   obj()->print(out);                        out->print(" ");
1907   tmp1()->print(out);                       out->print(" ");
1908   tmp2()->print(out);                       out->print(" ");
1909   tmp3()->print(out);                       out->print(" ");
1910   tmp4()->print(out);                       out->print(" ");
1911   out->print("[hdr:%d]", header_size()); out->print(" ");
1912   out->print("[obj:%d]", object_size()); out->print(" ");
1913   out->print("[lbl:" INTPTR_FORMAT "]", p2i(stub()->entry()));
1914 }
1915 
1916 void LIR_OpRoundFP::print_instr(outputStream* out) const {
1917   _opr->print(out);         out->print(" ");
1918   tmp()->print(out);        out->print(" ");
1919   result_opr()->print(out); out->print(" ");
1920 }
1921 
1922 // LIR_Op2
1923 void LIR_Op2::print_instr(outputStream* out) const {
1924   if (code() == lir_cmove || code() == lir_cmp) {
1925     print_condition(out, condition());         out->print(" ");
1926   }
1927   in_opr1()->print(out);    out->print(" ");
1928   in_opr2()->print(out);    out->print(" ");
1929   if (tmp1_opr()->is_valid()) { tmp1_opr()->print(out);    out->print(" "); }
1930   if (tmp2_opr()->is_valid()) { tmp2_opr()->print(out);    out->print(" "); }
1931   if (tmp3_opr()->is_valid()) { tmp3_opr()->print(out);    out->print(" "); }
1932   if (tmp4_opr()->is_valid()) { tmp4_opr()->print(out);    out->print(" "); }
1933   if (tmp5_opr()->is_valid()) { tmp5_opr()->print(out);    out->print(" "); }
1934   result_opr()->print(out);
1935 }
1936 
1937 void LIR_OpAllocArray::print_instr(outputStream* out) const {
1938   klass()->print(out);                   out->print(" ");
1939   len()->print(out);                     out->print(" ");
1940   obj()->print(out);                     out->print(" ");
1941   tmp1()->print(out);                    out->print(" ");
1942   tmp2()->print(out);                    out->print(" ");
1943   tmp3()->print(out);                    out->print(" ");
1944   tmp4()->print(out);                    out->print(" ");
1945   out->print("[type:0x%x]", type());     out->print(" ");
1946   out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry()));
1947 }
1948 
1949 
1950 void LIR_OpTypeCheck::print_instr(outputStream* out) const {
1951   object()->print(out);                  out->print(" ");
1952   if (code() == lir_store_check) {
1953     array()->print(out);                 out->print(" ");
1954   }
1955   if (code() != lir_store_check) {
1956     klass()->print_name_on(out);         out->print(" ");
1957     if (fast_check())                 out->print("fast_check ");
1958   }
1959   tmp1()->print(out);                    out->print(" ");
1960   tmp2()->print(out);                    out->print(" ");
1961   tmp3()->print(out);                    out->print(" ");
1962   result_opr()->print(out);              out->print(" ");
1963   if (info_for_exception() != NULL) out->print(" [bci:%d]", info_for_exception()->stack()->bci());
1964 }
1965 
1966 
1967 // LIR_Op3
1968 void LIR_Op3::print_instr(outputStream* out) const {
1969   in_opr1()->print(out);    out->print(" ");
1970   in_opr2()->print(out);    out->print(" ");
1971   in_opr3()->print(out);    out->print(" ");
1972   result_opr()->print(out);
1973 }
1974 
1975 
1976 void LIR_OpLock::print_instr(outputStream* out) const {
1977   hdr_opr()->print(out);   out->print(" ");
1978   obj_opr()->print(out);   out->print(" ");
1979   lock_opr()->print(out);  out->print(" ");
1980   if (_scratch->is_valid()) {
1981     _scratch->print(out);  out->print(" ");
1982   }
1983   out->print("[lbl:" INTPTR_FORMAT "]", p2i(stub()->entry()));
1984 }
1985 
1986 #ifdef ASSERT
1987 void LIR_OpAssert::print_instr(outputStream* out) const {
1988   print_condition(out, condition()); out->print(" ");
1989   in_opr1()->print(out);             out->print(" ");
1990   in_opr2()->print(out);             out->print(", \"");
1991   out->print("%s", msg());          out->print("\"");
1992 }
1993 #endif
1994 
1995 
1996 void LIR_OpDelay::print_instr(outputStream* out) const {
1997   _op->print_on(out);
1998 }
1999 
2000 
2001 // LIR_OpProfileCall
2002 void LIR_OpProfileCall::print_instr(outputStream* out) const {
2003   profiled_method()->name()->print_symbol_on(out);
2004   out->print(".");
2005   profiled_method()->holder()->name()->print_symbol_on(out);
2006   out->print(" @ %d ", profiled_bci());
2007   mdo()->print(out);           out->print(" ");
2008   recv()->print(out);          out->print(" ");
2009   tmp1()->print(out);          out->print(" ");
2010 }
2011 
2012 // LIR_OpProfileType
2013 void LIR_OpProfileType::print_instr(outputStream* out) const {
2014   out->print("exact = ");
2015   if  (exact_klass() == NULL) {
2016     out->print("unknown");
2017   } else {
2018     exact_klass()->print_name_on(out);
2019   }
2020   out->print(" current = "); ciTypeEntries::print_ciklass(out, current_klass());
2021   out->print(" ");
2022   mdp()->print(out);          out->print(" ");
2023   obj()->print(out);          out->print(" ");
2024   tmp()->print(out);          out->print(" ");
2025 }
2026 
2027 #endif // PRODUCT
2028 
2029 // Implementation of LIR_InsertionBuffer
2030 
2031 void LIR_InsertionBuffer::append(int index, LIR_Op* op) {
2032   assert(_index_and_count.length() % 2 == 0, "must have a count for each index");
2033 
2034   int i = number_of_insertion_points() - 1;
2035   if (i < 0 || index_at(i) < index) {
2036     append_new(index, 1);
2037   } else {
2038     assert(index_at(i) == index, "can append LIR_Ops in ascending order only");
2039     assert(count_at(i) > 0, "check");
2040     set_count_at(i, count_at(i) + 1);
2041   }
2042   _ops.push(op);
2043 
2044   DEBUG_ONLY(verify());
2045 }
2046 
2047 #ifdef ASSERT
2048 void LIR_InsertionBuffer::verify() {
2049   int sum = 0;
2050   int prev_idx = -1;
2051 
2052   for (int i = 0; i < number_of_insertion_points(); i++) {
2053     assert(prev_idx < index_at(i), "index must be ordered ascending");
2054     sum += count_at(i);
2055   }
2056   assert(sum == number_of_ops(), "wrong total sum");
2057 }
2058 #endif