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     case T_VALUETYPE:
 111       t = T_OBJECT;
 112     case T_BOOLEAN:
 113     case T_CHAR:
 114     case T_FLOAT:
 115     case T_DOUBLE:
 116     case T_BYTE:
 117     case T_SHORT:
 118     case T_INT:
 119     case T_LONG:
 120     case T_OBJECT:
 121     case T_ADDRESS:
 122     case T_VOID:
 123       return ::type2char(t);
 124     case T_METADATA:
 125       return 'M';
 126     case T_ILLEGAL:
 127       return '?';
 128 
 129     default:
 130       ShouldNotReachHere();
 131       return '?';
 132   }
 133 }
 134 
 135 #ifndef PRODUCT
 136 void LIR_OprDesc::validate_type() const {
 137 
 138 #ifdef ASSERT
 139   if (!is_pointer() && !is_illegal()) {
 140     OprKind kindfield = kind_field(); // Factored out because of compiler bug, see 8002160
 141     switch (as_BasicType(type_field())) {
 142     case T_LONG:
 143       assert((kindfield == cpu_register || kindfield == stack_value) &&
 144              size_field() == double_size, "must match");
 145       break;
 146     case T_FLOAT:
 147       // FP return values can be also in CPU registers on ARM and PPC32 (softfp ABI)
 148       assert((kindfield == fpu_register || kindfield == stack_value
 149              ARM_ONLY(|| kindfield == cpu_register)
 150              PPC32_ONLY(|| kindfield == cpu_register) ) &&
 151              size_field() == single_size, "must match");
 152       break;
 153     case T_DOUBLE:
 154       // FP return values can be also in CPU registers on ARM and PPC32 (softfp ABI)
 155       assert((kindfield == fpu_register || kindfield == stack_value
 156              ARM_ONLY(|| kindfield == cpu_register)
 157              PPC32_ONLY(|| kindfield == cpu_register) ) &&
 158              size_field() == double_size, "must match");
 159       break;
 160     case T_BOOLEAN:
 161     case T_CHAR:
 162     case T_BYTE:
 163     case T_SHORT:
 164     case T_INT:
 165     case T_ADDRESS:
 166     case T_OBJECT:
 167     case T_METADATA:
 168     case T_ARRAY:
 169     case T_VALUETYPE:
 170       assert((kindfield == cpu_register || kindfield == stack_value) &&
 171              size_field() == single_size, "must match");
 172       break;
 173 
 174     case T_ILLEGAL:
 175       // XXX TKR also means unknown right now
 176       // assert(is_illegal(), "must match");
 177       break;
 178 
 179     default:
 180       ShouldNotReachHere();
 181     }
 182   }
 183 #endif
 184 
 185 }
 186 #endif // PRODUCT
 187 
 188 
 189 bool LIR_OprDesc::is_oop() const {
 190   if (is_pointer()) {
 191     return pointer()->is_oop_pointer();
 192   } else {
 193     OprType t= type_field();
 194     assert(t != unknown_type, "not set");
 195     return t == object_type;
 196   }
 197 }
 198 
 199 
 200 
 201 void LIR_Op2::verify() const {
 202 #ifdef ASSERT
 203   switch (code()) {
 204     case lir_cmove:
 205     case lir_xchg:
 206       break;
 207 
 208     default:
 209       assert(!result_opr()->is_register() || !result_opr()->is_oop_register(),
 210              "can't produce oops from arith");
 211   }
 212 
 213   if (TwoOperandLIRForm) {
 214 
 215 #ifdef ASSERT
 216     bool threeOperandForm = false;
 217 #ifdef S390
 218     // There are 3 operand shifts on S390 (see LIR_Assembler::shift_op()).
 219     threeOperandForm =
 220       code() == lir_shl ||
 221       ((code() == lir_shr || code() == lir_ushr) && (result_opr()->is_double_cpu() || in_opr1()->type() == T_OBJECT));
 222 #endif
 223 #endif
 224 
 225     switch (code()) {
 226     case lir_add:
 227     case lir_sub:
 228     case lir_mul:
 229     case lir_mul_strictfp:
 230     case lir_div:
 231     case lir_div_strictfp:
 232     case lir_rem:
 233     case lir_logic_and:
 234     case lir_logic_or:
 235     case lir_logic_xor:
 236     case lir_shl:
 237     case lir_shr:
 238       assert(in_opr1() == result_opr() || threeOperandForm, "opr1 and result must match");
 239       assert(in_opr1()->is_valid() && in_opr2()->is_valid(), "must be valid");
 240       break;
 241 
 242     // special handling for lir_ushr because of write barriers
 243     case lir_ushr:
 244       assert(in_opr1() == result_opr() || in_opr2()->is_constant() || threeOperandForm, "opr1 and result must match or shift count is constant");
 245       assert(in_opr1()->is_valid() && in_opr2()->is_valid(), "must be valid");
 246       break;
 247 
 248     default:
 249       break;
 250     }
 251   }
 252 #endif
 253 }
 254 
 255 
 256 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, BasicType type, BlockBegin* block)
 257   : LIR_Op(lir_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*)NULL)
 258   , _cond(cond)
 259   , _type(type)
 260   , _label(block->label())
 261   , _block(block)
 262   , _ublock(NULL)
 263   , _stub(NULL) {
 264 }
 265 
 266 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, BasicType type, CodeStub* stub) :
 267   LIR_Op(lir_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*)NULL)
 268   , _cond(cond)
 269   , _type(type)
 270   , _label(stub->entry())
 271   , _block(NULL)
 272   , _ublock(NULL)
 273   , _stub(stub) {
 274 }
 275 
 276 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, BasicType type, BlockBegin* block, BlockBegin* ublock)
 277   : LIR_Op(lir_cond_float_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*)NULL)
 278   , _cond(cond)
 279   , _type(type)
 280   , _label(block->label())
 281   , _block(block)
 282   , _ublock(ublock)
 283   , _stub(NULL)
 284 {
 285 }
 286 
 287 void LIR_OpBranch::change_block(BlockBegin* b) {
 288   assert(_block != NULL, "must have old block");
 289   assert(_block->label() == label(), "must be equal");
 290 
 291   _block = b;
 292   _label = b->label();
 293 }
 294 
 295 void LIR_OpBranch::change_ublock(BlockBegin* b) {
 296   assert(_ublock != NULL, "must have old block");
 297   _ublock = b;
 298 }
 299 
 300 void LIR_OpBranch::negate_cond() {
 301   switch (_cond) {
 302     case lir_cond_equal:        _cond = lir_cond_notEqual;     break;
 303     case lir_cond_notEqual:     _cond = lir_cond_equal;        break;
 304     case lir_cond_less:         _cond = lir_cond_greaterEqual; break;
 305     case lir_cond_lessEqual:    _cond = lir_cond_greater;      break;
 306     case lir_cond_greaterEqual: _cond = lir_cond_less;         break;
 307     case lir_cond_greater:      _cond = lir_cond_lessEqual;    break;
 308     default: ShouldNotReachHere();
 309   }
 310 }
 311 
 312 
 313 LIR_OpTypeCheck::LIR_OpTypeCheck(LIR_Code code, LIR_Opr result, LIR_Opr object, ciKlass* klass,
 314                                  LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3,
 315                                  bool fast_check, CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch,
 316                                  CodeStub* stub, bool need_null_check)
 317 
 318   : LIR_Op(code, result, NULL)
 319   , _object(object)
 320   , _array(LIR_OprFact::illegalOpr)
 321   , _klass(klass)
 322   , _tmp1(tmp1)
 323   , _tmp2(tmp2)
 324   , _tmp3(tmp3)
 325   , _fast_check(fast_check)
 326   , _info_for_patch(info_for_patch)
 327   , _info_for_exception(info_for_exception)
 328   , _stub(stub)
 329   , _profiled_method(NULL)
 330   , _profiled_bci(-1)
 331   , _should_profile(false)
 332   , _need_null_check(need_null_check)
 333 {
 334   if (code == lir_checkcast) {
 335     assert(info_for_exception != NULL, "checkcast throws exceptions");
 336   } else if (code == lir_instanceof) {
 337     assert(info_for_exception == NULL, "instanceof throws no exceptions");
 338   } else {
 339     ShouldNotReachHere();
 340   }
 341 }
 342 
 343 
 344 
 345 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)
 346   : LIR_Op(code, LIR_OprFact::illegalOpr, NULL)
 347   , _object(object)
 348   , _array(array)
 349   , _klass(NULL)
 350   , _tmp1(tmp1)
 351   , _tmp2(tmp2)
 352   , _tmp3(tmp3)
 353   , _fast_check(false)
 354   , _info_for_patch(NULL)
 355   , _info_for_exception(info_for_exception)
 356   , _stub(NULL)
 357   , _profiled_method(NULL)
 358   , _profiled_bci(-1)
 359   , _should_profile(false)
 360   , _need_null_check(true)
 361 {
 362   if (code == lir_store_check) {
 363     _stub = new ArrayStoreExceptionStub(object, info_for_exception);
 364     assert(info_for_exception != NULL, "store_check throws exceptions");
 365   } else {
 366     ShouldNotReachHere();
 367   }
 368 }
 369 
 370 
 371 LIR_OpArrayCopy::LIR_OpArrayCopy(LIR_Opr src, LIR_Opr src_pos, LIR_Opr dst, LIR_Opr dst_pos, LIR_Opr length,
 372                                  LIR_Opr tmp, ciArrayKlass* expected_type, int flags, CodeEmitInfo* info)
 373   : LIR_Op(lir_arraycopy, LIR_OprFact::illegalOpr, info)
 374   , _src(src)
 375   , _src_pos(src_pos)
 376   , _dst(dst)
 377   , _dst_pos(dst_pos)
 378   , _length(length)
 379   , _tmp(tmp)
 380   , _expected_type(expected_type)
 381   , _flags(flags) {
 382   _stub = new ArrayCopyStub(this);
 383 }
 384 
 385 LIR_OpUpdateCRC32::LIR_OpUpdateCRC32(LIR_Opr crc, LIR_Opr val, LIR_Opr res)
 386   : LIR_Op(lir_updatecrc32, res, NULL)
 387   , _crc(crc)
 388   , _val(val) {
 389 }
 390 
 391 //-------------------verify--------------------------
 392 
 393 void LIR_Op1::verify() const {
 394   switch(code()) {
 395   case lir_move:
 396     assert(in_opr()->is_valid() && result_opr()->is_valid(), "must be");
 397     break;
 398   case lir_null_check:
 399     assert(in_opr()->is_register(), "must be");
 400     break;
 401   case lir_return:
 402     assert(in_opr()->is_register() || in_opr()->is_illegal(), "must be");
 403     break;
 404   default:
 405     break;
 406   }
 407 }
 408 
 409 void LIR_OpRTCall::verify() const {
 410   assert(strcmp(Runtime1::name_for_address(addr()), "<unknown function>") != 0, "unknown function");
 411 }
 412 
 413 //-------------------visits--------------------------
 414 
 415 // complete rework of LIR instruction visitor.
 416 // The virtual call for each instruction type is replaced by a big
 417 // switch that adds the operands for each instruction
 418 
 419 void LIR_OpVisitState::visit(LIR_Op* op) {
 420   // copy information from the LIR_Op
 421   reset();
 422   set_op(op);
 423 
 424   switch (op->code()) {
 425 
 426 // LIR_Op0
 427     case lir_word_align:               // result and info always invalid
 428     case lir_backwardbranch_target:    // result and info always invalid
 429     case lir_build_frame:              // result and info always invalid
 430     case lir_fpop_raw:                 // result and info always invalid
 431     case lir_24bit_FPU:                // result and info always invalid
 432     case lir_reset_FPU:                // result and info always invalid
 433     case lir_breakpoint:               // result and info always invalid
 434     case lir_membar:                   // result and info always invalid
 435     case lir_membar_acquire:           // result and info always invalid
 436     case lir_membar_release:           // result and info always invalid
 437     case lir_membar_loadload:          // result and info always invalid
 438     case lir_membar_storestore:        // result and info always invalid
 439     case lir_membar_loadstore:         // result and info always invalid
 440     case lir_membar_storeload:         // result and info always invalid
 441     case lir_on_spin_wait:
 442     {
 443       assert(op->as_Op0() != NULL, "must be");
 444       assert(op->_info == NULL, "info not used by this instruction");
 445       assert(op->_result->is_illegal(), "not used");
 446       break;
 447     }
 448 
 449     case lir_nop:                      // may have info, result always invalid
 450     case lir_std_entry:                // may have result, info always invalid
 451     case lir_osr_entry:                // may have result, info always invalid
 452     case lir_get_thread:               // may have result, info always invalid
 453     {
 454       assert(op->as_Op0() != NULL, "must be");
 455       if (op->_info != NULL)           do_info(op->_info);
 456       if (op->_result->is_valid())     do_output(op->_result);
 457       break;
 458     }
 459 
 460 
 461 // LIR_OpLabel
 462     case lir_label:                    // result and info always invalid
 463     {
 464       assert(op->as_OpLabel() != NULL, "must be");
 465       assert(op->_info == NULL, "info not used by this instruction");
 466       assert(op->_result->is_illegal(), "not used");
 467       break;
 468     }
 469 
 470 
 471 // LIR_Op1
 472     case lir_fxch:           // input always valid, result and info always invalid
 473     case lir_fld:            // input always valid, result and info always invalid
 474     case lir_ffree:          // input always valid, result and info always invalid
 475     case lir_push:           // input always valid, result and info always invalid
 476     case lir_pop:            // input always valid, result and info always invalid
 477     case lir_return:         // input always valid, result and info always invalid
 478     case lir_leal:           // input and result always valid, info always invalid
 479     case lir_monaddr:        // input and result always valid, info always invalid
 480     case lir_null_check:     // input and info always valid, result always invalid
 481     case lir_move:           // input and result always valid, may have info
 482     case lir_pack64:         // input and result always valid
 483     case lir_unpack64:       // input and result always valid
 484     {
 485       assert(op->as_Op1() != NULL, "must be");
 486       LIR_Op1* op1 = (LIR_Op1*)op;
 487 
 488       if (op1->_info)                  do_info(op1->_info);
 489       if (op1->_opr->is_valid())       do_input(op1->_opr);
 490       if (op1->_result->is_valid())    do_output(op1->_result);
 491 
 492       break;
 493     }
 494 
 495     case lir_safepoint:
 496     {
 497       assert(op->as_Op1() != NULL, "must be");
 498       LIR_Op1* op1 = (LIR_Op1*)op;
 499 
 500       assert(op1->_info != NULL, "");  do_info(op1->_info);
 501       if (op1->_opr->is_valid())       do_temp(op1->_opr); // safepoints on SPARC need temporary register
 502       assert(op1->_result->is_illegal(), "safepoint does not produce value");
 503 
 504       break;
 505     }
 506 
 507 // LIR_OpConvert;
 508     case lir_convert:        // input and result always valid, info always invalid
 509     {
 510       assert(op->as_OpConvert() != NULL, "must be");
 511       LIR_OpConvert* opConvert = (LIR_OpConvert*)op;
 512 
 513       assert(opConvert->_info == NULL, "must be");
 514       if (opConvert->_opr->is_valid())       do_input(opConvert->_opr);
 515       if (opConvert->_result->is_valid())    do_output(opConvert->_result);
 516 #ifdef PPC32
 517       if (opConvert->_tmp1->is_valid())      do_temp(opConvert->_tmp1);
 518       if (opConvert->_tmp2->is_valid())      do_temp(opConvert->_tmp2);
 519 #endif
 520       do_stub(opConvert->_stub);
 521 
 522       break;
 523     }
 524 
 525 // LIR_OpBranch;
 526     case lir_branch:                   // may have info, input and result register always invalid
 527     case lir_cond_float_branch:        // may have info, input and result register always invalid
 528     {
 529       assert(op->as_OpBranch() != NULL, "must be");
 530       LIR_OpBranch* opBranch = (LIR_OpBranch*)op;
 531 
 532       if (opBranch->_info != NULL)     do_info(opBranch->_info);
 533       assert(opBranch->_result->is_illegal(), "not used");
 534       if (opBranch->_stub != NULL)     opBranch->stub()->visit(this);
 535 
 536       break;
 537     }
 538 
 539 
 540 // LIR_OpAllocObj
 541     case lir_alloc_object:
 542     {
 543       assert(op->as_OpAllocObj() != NULL, "must be");
 544       LIR_OpAllocObj* opAllocObj = (LIR_OpAllocObj*)op;
 545 
 546       if (opAllocObj->_info)                     do_info(opAllocObj->_info);
 547       if (opAllocObj->_opr->is_valid()) {        do_input(opAllocObj->_opr);
 548                                                  do_temp(opAllocObj->_opr);
 549                                         }
 550       if (opAllocObj->_tmp1->is_valid())         do_temp(opAllocObj->_tmp1);
 551       if (opAllocObj->_tmp2->is_valid())         do_temp(opAllocObj->_tmp2);
 552       if (opAllocObj->_tmp3->is_valid())         do_temp(opAllocObj->_tmp3);
 553       if (opAllocObj->_tmp4->is_valid())         do_temp(opAllocObj->_tmp4);
 554       if (opAllocObj->_result->is_valid())       do_output(opAllocObj->_result);
 555                                                  do_stub(opAllocObj->_stub);
 556       break;
 557     }
 558 
 559 
 560 // LIR_OpRoundFP;
 561     case lir_roundfp: {
 562       assert(op->as_OpRoundFP() != NULL, "must be");
 563       LIR_OpRoundFP* opRoundFP = (LIR_OpRoundFP*)op;
 564 
 565       assert(op->_info == NULL, "info not used by this instruction");
 566       assert(opRoundFP->_tmp->is_illegal(), "not used");
 567       do_input(opRoundFP->_opr);
 568       do_output(opRoundFP->_result);
 569 
 570       break;
 571     }
 572 
 573 
 574 // LIR_Op2
 575     case lir_cmp:
 576     case lir_cmp_l2i:
 577     case lir_ucmp_fd2i:
 578     case lir_cmp_fd2i:
 579     case lir_add:
 580     case lir_sub:
 581     case lir_mul:
 582     case lir_div:
 583     case lir_rem:
 584     case lir_sqrt:
 585     case lir_abs:
 586     case lir_neg:
 587     case lir_logic_and:
 588     case lir_logic_or:
 589     case lir_logic_xor:
 590     case lir_shl:
 591     case lir_shr:
 592     case lir_ushr:
 593     case lir_xadd:
 594     case lir_xchg:
 595     case lir_assert:
 596     {
 597       assert(op->as_Op2() != NULL, "must be");
 598       LIR_Op2* op2 = (LIR_Op2*)op;
 599       assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
 600              op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
 601 
 602       if (op2->_info)                     do_info(op2->_info);
 603       if (op2->_opr1->is_valid())         do_input(op2->_opr1);
 604       if (op2->_opr2->is_valid())         do_input(op2->_opr2);
 605       if (op2->_tmp1->is_valid())         do_temp(op2->_tmp1);
 606       if (op2->_result->is_valid())       do_output(op2->_result);
 607       if (op->code() == lir_xchg || op->code() == lir_xadd) {
 608         // on ARM and PPC, return value is loaded first so could
 609         // destroy inputs. On other platforms that implement those
 610         // (x86, sparc), the extra constrainsts are harmless.
 611         if (op2->_opr1->is_valid())       do_temp(op2->_opr1);
 612         if (op2->_opr2->is_valid())       do_temp(op2->_opr2);
 613       }
 614 
 615       break;
 616     }
 617 
 618     // special handling for cmove: right input operand must not be equal
 619     // to the result operand, otherwise the backend fails
 620     case lir_cmove:
 621     {
 622       assert(op->as_Op2() != NULL, "must be");
 623       LIR_Op2* op2 = (LIR_Op2*)op;
 624 
 625       assert(op2->_info == NULL && op2->_tmp1->is_illegal() && op2->_tmp2->is_illegal() &&
 626              op2->_tmp3->is_illegal() && op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
 627       assert(op2->_opr1->is_valid() && op2->_opr2->is_valid() && op2->_result->is_valid(), "used");
 628 
 629       do_input(op2->_opr1);
 630       do_input(op2->_opr2);
 631       do_temp(op2->_opr2);
 632       do_output(op2->_result);
 633 
 634       break;
 635     }
 636 
 637     // vspecial handling for strict operations: register input operands
 638     // as temp to guarantee that they do not overlap with other
 639     // registers
 640     case lir_mul_strictfp:
 641     case lir_div_strictfp:
 642     {
 643       assert(op->as_Op2() != NULL, "must be");
 644       LIR_Op2* op2 = (LIR_Op2*)op;
 645 
 646       assert(op2->_info == NULL, "not used");
 647       assert(op2->_opr1->is_valid(), "used");
 648       assert(op2->_opr2->is_valid(), "used");
 649       assert(op2->_result->is_valid(), "used");
 650       assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
 651              op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
 652 
 653       do_input(op2->_opr1); do_temp(op2->_opr1);
 654       do_input(op2->_opr2); do_temp(op2->_opr2);
 655       if (op2->_tmp1->is_valid()) do_temp(op2->_tmp1);
 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       assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
 670              op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
 671 
 672       break;
 673     }
 674 
 675     case lir_unwind: {
 676       assert(op->as_Op1() != NULL, "must be");
 677       LIR_Op1* op1 = (LIR_Op1*)op;
 678 
 679       assert(op1->_info == NULL, "no info");
 680       assert(op1->_opr->is_valid(), "exception oop");         do_input(op1->_opr);
 681       assert(op1->_result->is_illegal(), "no result");
 682 
 683       break;
 684     }
 685 
 686 // LIR_Op3
 687     case lir_idiv:
 688     case lir_irem: {
 689       assert(op->as_Op3() != NULL, "must be");
 690       LIR_Op3* op3= (LIR_Op3*)op;
 691 
 692       if (op3->_info)                     do_info(op3->_info);
 693       if (op3->_opr1->is_valid())         do_input(op3->_opr1);
 694 
 695       // second operand is input and temp, so ensure that second operand
 696       // and third operand get not the same register
 697       if (op3->_opr2->is_valid())         do_input(op3->_opr2);
 698       if (op3->_opr2->is_valid())         do_temp(op3->_opr2);
 699       if (op3->_opr3->is_valid())         do_temp(op3->_opr3);
 700 
 701       if (op3->_result->is_valid())       do_output(op3->_result);
 702 
 703       break;
 704     }
 705 
 706     case lir_fmad:
 707     case lir_fmaf: {
 708       assert(op->as_Op3() != NULL, "must be");
 709       LIR_Op3* op3= (LIR_Op3*)op;
 710       assert(op3->_info == NULL, "no info");
 711       do_input(op3->_opr1);
 712       do_input(op3->_opr2);
 713       do_input(op3->_opr3);
 714       do_output(op3->_result);
 715       break;
 716     }
 717 
 718 // LIR_OpJavaCall
 719     case lir_static_call:
 720     case lir_optvirtual_call:
 721     case lir_icvirtual_call:
 722     case lir_virtual_call:
 723     case lir_dynamic_call: {
 724       LIR_OpJavaCall* opJavaCall = op->as_OpJavaCall();
 725       assert(opJavaCall != NULL, "must be");
 726 
 727       if (opJavaCall->_receiver->is_valid())     do_input(opJavaCall->_receiver);
 728 
 729       // only visit register parameters
 730       int n = opJavaCall->_arguments->length();
 731       for (int i = opJavaCall->_receiver->is_valid() ? 1 : 0; i < n; i++) {
 732         if (!opJavaCall->_arguments->at(i)->is_pointer()) {
 733           do_input(*opJavaCall->_arguments->adr_at(i));
 734         }
 735       }
 736 
 737       if (opJavaCall->_info)                     do_info(opJavaCall->_info);
 738       if (FrameMap::method_handle_invoke_SP_save_opr() != LIR_OprFact::illegalOpr &&
 739           opJavaCall->is_method_handle_invoke()) {
 740         opJavaCall->_method_handle_invoke_SP_save_opr = FrameMap::method_handle_invoke_SP_save_opr();
 741         do_temp(opJavaCall->_method_handle_invoke_SP_save_opr);
 742       }
 743       do_call();
 744       if (opJavaCall->_result->is_valid())       do_output(opJavaCall->_result);
 745 
 746       break;
 747     }
 748 
 749 
 750 // LIR_OpRTCall
 751     case lir_rtcall: {
 752       assert(op->as_OpRTCall() != NULL, "must be");
 753       LIR_OpRTCall* opRTCall = (LIR_OpRTCall*)op;
 754 
 755       // only visit register parameters
 756       int n = opRTCall->_arguments->length();
 757       for (int i = 0; i < n; i++) {
 758         if (!opRTCall->_arguments->at(i)->is_pointer()) {
 759           do_input(*opRTCall->_arguments->adr_at(i));
 760         }
 761       }
 762       if (opRTCall->_info)                     do_info(opRTCall->_info);
 763       if (opRTCall->_tmp->is_valid())          do_temp(opRTCall->_tmp);
 764       do_call();
 765       if (opRTCall->_result->is_valid())       do_output(opRTCall->_result);
 766 
 767       break;
 768     }
 769 
 770 
 771 // LIR_OpArrayCopy
 772     case lir_arraycopy: {
 773       assert(op->as_OpArrayCopy() != NULL, "must be");
 774       LIR_OpArrayCopy* opArrayCopy = (LIR_OpArrayCopy*)op;
 775 
 776       assert(opArrayCopy->_result->is_illegal(), "unused");
 777       assert(opArrayCopy->_src->is_valid(), "used");          do_input(opArrayCopy->_src);     do_temp(opArrayCopy->_src);
 778       assert(opArrayCopy->_src_pos->is_valid(), "used");      do_input(opArrayCopy->_src_pos); do_temp(opArrayCopy->_src_pos);
 779       assert(opArrayCopy->_dst->is_valid(), "used");          do_input(opArrayCopy->_dst);     do_temp(opArrayCopy->_dst);
 780       assert(opArrayCopy->_dst_pos->is_valid(), "used");      do_input(opArrayCopy->_dst_pos); do_temp(opArrayCopy->_dst_pos);
 781       assert(opArrayCopy->_length->is_valid(), "used");       do_input(opArrayCopy->_length);  do_temp(opArrayCopy->_length);
 782       assert(opArrayCopy->_tmp->is_valid(), "used");          do_temp(opArrayCopy->_tmp);
 783       if (opArrayCopy->_info)                     do_info(opArrayCopy->_info);
 784 
 785       // the implementation of arraycopy always has a call into the runtime
 786       do_call();
 787 
 788       break;
 789     }
 790 
 791 
 792 // LIR_OpUpdateCRC32
 793     case lir_updatecrc32: {
 794       assert(op->as_OpUpdateCRC32() != NULL, "must be");
 795       LIR_OpUpdateCRC32* opUp = (LIR_OpUpdateCRC32*)op;
 796 
 797       assert(opUp->_crc->is_valid(), "used");          do_input(opUp->_crc);     do_temp(opUp->_crc);
 798       assert(opUp->_val->is_valid(), "used");          do_input(opUp->_val);     do_temp(opUp->_val);
 799       assert(opUp->_result->is_valid(), "used");       do_output(opUp->_result);
 800       assert(opUp->_info == NULL, "no info for LIR_OpUpdateCRC32");
 801 
 802       break;
 803     }
 804 
 805 
 806 // LIR_OpLock
 807     case lir_lock:
 808     case lir_unlock: {
 809       assert(op->as_OpLock() != NULL, "must be");
 810       LIR_OpLock* opLock = (LIR_OpLock*)op;
 811 
 812       if (opLock->_info)                          do_info(opLock->_info);
 813 
 814       // TODO: check if these operands really have to be temp
 815       // (or if input is sufficient). This may have influence on the oop map!
 816       assert(opLock->_lock->is_valid(), "used");  do_temp(opLock->_lock);
 817       assert(opLock->_hdr->is_valid(),  "used");  do_temp(opLock->_hdr);
 818       assert(opLock->_obj->is_valid(),  "used");  do_temp(opLock->_obj);
 819 
 820       if (opLock->_scratch->is_valid())           do_temp(opLock->_scratch);
 821       assert(opLock->_result->is_illegal(), "unused");
 822 
 823       do_stub(opLock->_stub);
 824 
 825       break;
 826     }
 827 
 828 
 829 // LIR_OpDelay
 830     case lir_delay_slot: {
 831       assert(op->as_OpDelay() != NULL, "must be");
 832       LIR_OpDelay* opDelay = (LIR_OpDelay*)op;
 833 
 834       visit(opDelay->delay_op());
 835       break;
 836     }
 837 
 838 // LIR_OpTypeCheck
 839     case lir_instanceof:
 840     case lir_checkcast:
 841     case lir_store_check: {
 842       assert(op->as_OpTypeCheck() != NULL, "must be");
 843       LIR_OpTypeCheck* opTypeCheck = (LIR_OpTypeCheck*)op;
 844 
 845       if (opTypeCheck->_info_for_exception)       do_info(opTypeCheck->_info_for_exception);
 846       if (opTypeCheck->_info_for_patch)           do_info(opTypeCheck->_info_for_patch);
 847       if (opTypeCheck->_object->is_valid())       do_input(opTypeCheck->_object);
 848       if (op->code() == lir_store_check && opTypeCheck->_object->is_valid()) {
 849         do_temp(opTypeCheck->_object);
 850       }
 851       if (opTypeCheck->_array->is_valid())        do_input(opTypeCheck->_array);
 852       if (opTypeCheck->_tmp1->is_valid())         do_temp(opTypeCheck->_tmp1);
 853       if (opTypeCheck->_tmp2->is_valid())         do_temp(opTypeCheck->_tmp2);
 854       if (opTypeCheck->_tmp3->is_valid())         do_temp(opTypeCheck->_tmp3);
 855       if (opTypeCheck->_result->is_valid())       do_output(opTypeCheck->_result);
 856                                                   do_stub(opTypeCheck->_stub);
 857       break;
 858     }
 859 
 860 // LIR_OpCompareAndSwap
 861     case lir_cas_long:
 862     case lir_cas_obj:
 863     case lir_cas_int: {
 864       assert(op->as_OpCompareAndSwap() != NULL, "must be");
 865       LIR_OpCompareAndSwap* opCompareAndSwap = (LIR_OpCompareAndSwap*)op;
 866 
 867       assert(opCompareAndSwap->_addr->is_valid(),      "used");
 868       assert(opCompareAndSwap->_cmp_value->is_valid(), "used");
 869       assert(opCompareAndSwap->_new_value->is_valid(), "used");
 870       if (opCompareAndSwap->_info)                    do_info(opCompareAndSwap->_info);
 871                                                       do_input(opCompareAndSwap->_addr);
 872                                                       do_temp(opCompareAndSwap->_addr);
 873                                                       do_input(opCompareAndSwap->_cmp_value);
 874                                                       do_temp(opCompareAndSwap->_cmp_value);
 875                                                       do_input(opCompareAndSwap->_new_value);
 876                                                       do_temp(opCompareAndSwap->_new_value);
 877       if (opCompareAndSwap->_tmp1->is_valid())        do_temp(opCompareAndSwap->_tmp1);
 878       if (opCompareAndSwap->_tmp2->is_valid())        do_temp(opCompareAndSwap->_tmp2);
 879       if (opCompareAndSwap->_result->is_valid())      do_output(opCompareAndSwap->_result);
 880 
 881       break;
 882     }
 883 
 884 
 885 // LIR_OpAllocArray;
 886     case lir_alloc_array: {
 887       assert(op->as_OpAllocArray() != NULL, "must be");
 888       LIR_OpAllocArray* opAllocArray = (LIR_OpAllocArray*)op;
 889 
 890       if (opAllocArray->_info)                        do_info(opAllocArray->_info);
 891       if (opAllocArray->_klass->is_valid())           do_input(opAllocArray->_klass); do_temp(opAllocArray->_klass);
 892       if (opAllocArray->_len->is_valid())             do_input(opAllocArray->_len);   do_temp(opAllocArray->_len);
 893       if (opAllocArray->_tmp1->is_valid())            do_temp(opAllocArray->_tmp1);
 894       if (opAllocArray->_tmp2->is_valid())            do_temp(opAllocArray->_tmp2);
 895       if (opAllocArray->_tmp3->is_valid())            do_temp(opAllocArray->_tmp3);
 896       if (opAllocArray->_tmp4->is_valid())            do_temp(opAllocArray->_tmp4);
 897       if (opAllocArray->_result->is_valid())          do_output(opAllocArray->_result);
 898                                                       do_stub(opAllocArray->_stub);
 899       break;
 900     }
 901 
 902 // LIR_OpProfileCall:
 903     case lir_profile_call: {
 904       assert(op->as_OpProfileCall() != NULL, "must be");
 905       LIR_OpProfileCall* opProfileCall = (LIR_OpProfileCall*)op;
 906 
 907       if (opProfileCall->_recv->is_valid())              do_temp(opProfileCall->_recv);
 908       assert(opProfileCall->_mdo->is_valid(), "used");   do_temp(opProfileCall->_mdo);
 909       assert(opProfileCall->_tmp1->is_valid(), "used");  do_temp(opProfileCall->_tmp1);
 910       break;
 911     }
 912 
 913 // LIR_OpProfileType:
 914     case lir_profile_type: {
 915       assert(op->as_OpProfileType() != NULL, "must be");
 916       LIR_OpProfileType* opProfileType = (LIR_OpProfileType*)op;
 917 
 918       do_input(opProfileType->_mdp); do_temp(opProfileType->_mdp);
 919       do_input(opProfileType->_obj);
 920       do_temp(opProfileType->_tmp);
 921       break;
 922     }
 923   default:
 924     op->visit(this);
 925   }
 926 }
 927 
 928 void LIR_Op::visit(LIR_OpVisitState* state) {
 929   ShouldNotReachHere();
 930 }
 931 
 932 void LIR_OpVisitState::do_stub(CodeStub* stub) {
 933   if (stub != NULL) {
 934     stub->visit(this);
 935   }
 936 }
 937 
 938 XHandlers* LIR_OpVisitState::all_xhandler() {
 939   XHandlers* result = NULL;
 940 
 941   int i;
 942   for (i = 0; i < info_count(); i++) {
 943     if (info_at(i)->exception_handlers() != NULL) {
 944       result = info_at(i)->exception_handlers();
 945       break;
 946     }
 947   }
 948 
 949 #ifdef ASSERT
 950   for (i = 0; i < info_count(); i++) {
 951     assert(info_at(i)->exception_handlers() == NULL ||
 952            info_at(i)->exception_handlers() == result,
 953            "only one xhandler list allowed per LIR-operation");
 954   }
 955 #endif
 956 
 957   if (result != NULL) {
 958     return result;
 959   } else {
 960     return new XHandlers();
 961   }
 962 
 963   return result;
 964 }
 965 
 966 
 967 #ifdef ASSERT
 968 bool LIR_OpVisitState::no_operands(LIR_Op* op) {
 969   visit(op);
 970 
 971   return opr_count(inputMode) == 0 &&
 972          opr_count(outputMode) == 0 &&
 973          opr_count(tempMode) == 0 &&
 974          info_count() == 0 &&
 975          !has_call() &&
 976          !has_slow_case();
 977 }
 978 #endif
 979 
 980 //---------------------------------------------------
 981 
 982 
 983 void LIR_OpJavaCall::emit_code(LIR_Assembler* masm) {
 984   masm->emit_call(this);
 985 }
 986 
 987 void LIR_OpRTCall::emit_code(LIR_Assembler* masm) {
 988   masm->emit_rtcall(this);
 989 }
 990 
 991 void LIR_OpLabel::emit_code(LIR_Assembler* masm) {
 992   masm->emit_opLabel(this);
 993 }
 994 
 995 void LIR_OpArrayCopy::emit_code(LIR_Assembler* masm) {
 996   masm->emit_arraycopy(this);
 997   masm->append_code_stub(stub());
 998 }
 999 
1000 void LIR_OpUpdateCRC32::emit_code(LIR_Assembler* masm) {
1001   masm->emit_updatecrc32(this);
1002 }
1003 
1004 void LIR_Op0::emit_code(LIR_Assembler* masm) {
1005   masm->emit_op0(this);
1006 }
1007 
1008 void LIR_Op1::emit_code(LIR_Assembler* masm) {
1009   masm->emit_op1(this);
1010 }
1011 
1012 void LIR_OpAllocObj::emit_code(LIR_Assembler* masm) {
1013   masm->emit_alloc_obj(this);
1014   masm->append_code_stub(stub());
1015 }
1016 
1017 void LIR_OpBranch::emit_code(LIR_Assembler* masm) {
1018   masm->emit_opBranch(this);
1019   if (stub()) {
1020     masm->append_code_stub(stub());
1021   }
1022 }
1023 
1024 void LIR_OpConvert::emit_code(LIR_Assembler* masm) {
1025   masm->emit_opConvert(this);
1026   if (stub() != NULL) {
1027     masm->append_code_stub(stub());
1028   }
1029 }
1030 
1031 void LIR_Op2::emit_code(LIR_Assembler* masm) {
1032   masm->emit_op2(this);
1033 }
1034 
1035 void LIR_OpAllocArray::emit_code(LIR_Assembler* masm) {
1036   masm->emit_alloc_array(this);
1037   masm->append_code_stub(stub());
1038 }
1039 
1040 void LIR_OpTypeCheck::emit_code(LIR_Assembler* masm) {
1041   masm->emit_opTypeCheck(this);
1042   if (stub()) {
1043     masm->append_code_stub(stub());
1044   }
1045 }
1046 
1047 void LIR_OpCompareAndSwap::emit_code(LIR_Assembler* masm) {
1048   masm->emit_compare_and_swap(this);
1049 }
1050 
1051 void LIR_Op3::emit_code(LIR_Assembler* masm) {
1052   masm->emit_op3(this);
1053 }
1054 
1055 void LIR_OpLock::emit_code(LIR_Assembler* masm) {
1056   masm->emit_lock(this);
1057   if (stub()) {
1058     masm->append_code_stub(stub());
1059   }
1060 }
1061 
1062 #ifdef ASSERT
1063 void LIR_OpAssert::emit_code(LIR_Assembler* masm) {
1064   masm->emit_assert(this);
1065 }
1066 #endif
1067 
1068 void LIR_OpDelay::emit_code(LIR_Assembler* masm) {
1069   masm->emit_delay(this);
1070 }
1071 
1072 void LIR_OpProfileCall::emit_code(LIR_Assembler* masm) {
1073   masm->emit_profile_call(this);
1074 }
1075 
1076 void LIR_OpProfileType::emit_code(LIR_Assembler* masm) {
1077   masm->emit_profile_type(this);
1078 }
1079 
1080 // LIR_List
1081 LIR_List::LIR_List(Compilation* compilation, BlockBegin* block)
1082   : _operations(8)
1083   , _compilation(compilation)
1084 #ifndef PRODUCT
1085   , _block(block)
1086 #endif
1087 #ifdef ASSERT
1088   , _file(NULL)
1089   , _line(0)
1090 #endif
1091 { }
1092 
1093 
1094 #ifdef ASSERT
1095 void LIR_List::set_file_and_line(const char * file, int line) {
1096   const char * f = strrchr(file, '/');
1097   if (f == NULL) f = strrchr(file, '\\');
1098   if (f == NULL) {
1099     f = file;
1100   } else {
1101     f++;
1102   }
1103   _file = f;
1104   _line = line;
1105 }
1106 #endif
1107 
1108 
1109 void LIR_List::append(LIR_InsertionBuffer* buffer) {
1110   assert(this == buffer->lir_list(), "wrong lir list");
1111   const int n = _operations.length();
1112 
1113   if (buffer->number_of_ops() > 0) {
1114     // increase size of instructions list
1115     _operations.at_grow(n + buffer->number_of_ops() - 1, NULL);
1116     // insert ops from buffer into instructions list
1117     int op_index = buffer->number_of_ops() - 1;
1118     int ip_index = buffer->number_of_insertion_points() - 1;
1119     int from_index = n - 1;
1120     int to_index = _operations.length() - 1;
1121     for (; ip_index >= 0; ip_index --) {
1122       int index = buffer->index_at(ip_index);
1123       // make room after insertion point
1124       while (index < from_index) {
1125         _operations.at_put(to_index --, _operations.at(from_index --));
1126       }
1127       // insert ops from buffer
1128       for (int i = buffer->count_at(ip_index); i > 0; i --) {
1129         _operations.at_put(to_index --, buffer->op_at(op_index --));
1130       }
1131     }
1132   }
1133 
1134   buffer->finish();
1135 }
1136 
1137 
1138 void LIR_List::oop2reg_patch(jobject o, LIR_Opr reg, CodeEmitInfo* info) {
1139   assert(reg->type() == T_OBJECT, "bad reg");
1140   append(new LIR_Op1(lir_move, LIR_OprFact::oopConst(o),  reg, T_OBJECT, lir_patch_normal, info));
1141 }
1142 
1143 void LIR_List::klass2reg_patch(Metadata* o, LIR_Opr reg, CodeEmitInfo* info) {
1144   assert(reg->type() == T_METADATA, "bad reg");
1145   append(new LIR_Op1(lir_move, LIR_OprFact::metadataConst(o), reg, T_METADATA, lir_patch_normal, info));
1146 }
1147 
1148 void LIR_List::load(LIR_Address* addr, LIR_Opr src, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1149   append(new LIR_Op1(
1150             lir_move,
1151             LIR_OprFact::address(addr),
1152             src,
1153             addr->type(),
1154             patch_code,
1155             info));
1156 }
1157 
1158 
1159 void LIR_List::volatile_load_mem_reg(LIR_Address* address, LIR_Opr dst, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1160   append(new LIR_Op1(
1161             lir_move,
1162             LIR_OprFact::address(address),
1163             dst,
1164             address->type(),
1165             patch_code,
1166             info, lir_move_volatile));
1167 }
1168 
1169 void LIR_List::volatile_load_unsafe_reg(LIR_Opr base, LIR_Opr offset, LIR_Opr dst, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1170   append(new LIR_Op1(
1171             lir_move,
1172             LIR_OprFact::address(new LIR_Address(base, offset, type)),
1173             dst,
1174             type,
1175             patch_code,
1176             info, lir_move_volatile));
1177 }
1178 
1179 
1180 void LIR_List::store_mem_int(jint v, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1181   append(new LIR_Op1(
1182             lir_move,
1183             LIR_OprFact::intConst(v),
1184             LIR_OprFact::address(new LIR_Address(base, offset_in_bytes, type)),
1185             type,
1186             patch_code,
1187             info));
1188 }
1189 
1190 
1191 void LIR_List::store_mem_oop(jobject o, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1192   append(new LIR_Op1(
1193             lir_move,
1194             LIR_OprFact::oopConst(o),
1195             LIR_OprFact::address(new LIR_Address(base, offset_in_bytes, type)),
1196             type,
1197             patch_code,
1198             info));
1199 }
1200 
1201 
1202 void LIR_List::store(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1203   append(new LIR_Op1(
1204             lir_move,
1205             src,
1206             LIR_OprFact::address(addr),
1207             addr->type(),
1208             patch_code,
1209             info));
1210 }
1211 
1212 
1213 void LIR_List::volatile_store_mem_reg(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1214   append(new LIR_Op1(
1215             lir_move,
1216             src,
1217             LIR_OprFact::address(addr),
1218             addr->type(),
1219             patch_code,
1220             info,
1221             lir_move_volatile));
1222 }
1223 
1224 void LIR_List::volatile_store_unsafe_reg(LIR_Opr src, LIR_Opr base, LIR_Opr offset, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1225   append(new LIR_Op1(
1226             lir_move,
1227             src,
1228             LIR_OprFact::address(new LIR_Address(base, offset, type)),
1229             type,
1230             patch_code,
1231             info, lir_move_volatile));
1232 }
1233 
1234 
1235 void LIR_List::idiv(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1236   append(new LIR_Op3(
1237                     lir_idiv,
1238                     left,
1239                     right,
1240                     tmp,
1241                     res,
1242                     info));
1243 }
1244 
1245 
1246 void LIR_List::idiv(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1247   append(new LIR_Op3(
1248                     lir_idiv,
1249                     left,
1250                     LIR_OprFact::intConst(right),
1251                     tmp,
1252                     res,
1253                     info));
1254 }
1255 
1256 
1257 void LIR_List::irem(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1258   append(new LIR_Op3(
1259                     lir_irem,
1260                     left,
1261                     right,
1262                     tmp,
1263                     res,
1264                     info));
1265 }
1266 
1267 
1268 void LIR_List::irem(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1269   append(new LIR_Op3(
1270                     lir_irem,
1271                     left,
1272                     LIR_OprFact::intConst(right),
1273                     tmp,
1274                     res,
1275                     info));
1276 }
1277 
1278 
1279 void LIR_List::cmp_mem_int(LIR_Condition condition, LIR_Opr base, int disp, int c, CodeEmitInfo* info) {
1280   append(new LIR_Op2(
1281                     lir_cmp,
1282                     condition,
1283                     LIR_OprFact::address(new LIR_Address(base, disp, T_INT)),
1284                     LIR_OprFact::intConst(c),
1285                     info));
1286 }
1287 
1288 
1289 void LIR_List::cmp_reg_mem(LIR_Condition condition, LIR_Opr reg, LIR_Address* addr, CodeEmitInfo* info) {
1290   append(new LIR_Op2(
1291                     lir_cmp,
1292                     condition,
1293                     reg,
1294                     LIR_OprFact::address(addr),
1295                     info));
1296 }
1297 
1298 void LIR_List::allocate_object(LIR_Opr dst, LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4,
1299                                int header_size, int object_size, LIR_Opr klass, bool init_check, CodeStub* stub) {
1300   append(new LIR_OpAllocObj(
1301                            klass,
1302                            dst,
1303                            t1,
1304                            t2,
1305                            t3,
1306                            t4,
1307                            header_size,
1308                            object_size,
1309                            init_check,
1310                            stub));
1311 }
1312 
1313 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) {
1314   append(new LIR_OpAllocArray(
1315                            klass,
1316                            len,
1317                            dst,
1318                            t1,
1319                            t2,
1320                            t3,
1321                            t4,
1322                            type,
1323                            stub));
1324 }
1325 
1326 void LIR_List::shift_left(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1327  append(new LIR_Op2(
1328                     lir_shl,
1329                     value,
1330                     count,
1331                     dst,
1332                     tmp));
1333 }
1334 
1335 void LIR_List::shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1336  append(new LIR_Op2(
1337                     lir_shr,
1338                     value,
1339                     count,
1340                     dst,
1341                     tmp));
1342 }
1343 
1344 
1345 void LIR_List::unsigned_shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1346  append(new LIR_Op2(
1347                     lir_ushr,
1348                     value,
1349                     count,
1350                     dst,
1351                     tmp));
1352 }
1353 
1354 void LIR_List::fcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst, bool is_unordered_less) {
1355   append(new LIR_Op2(is_unordered_less ? lir_ucmp_fd2i : lir_cmp_fd2i,
1356                      left,
1357                      right,
1358                      dst));
1359 }
1360 
1361 void LIR_List::lock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info) {
1362   append(new LIR_OpLock(
1363                     lir_lock,
1364                     hdr,
1365                     obj,
1366                     lock,
1367                     scratch,
1368                     stub,
1369                     info));
1370 }
1371 
1372 void LIR_List::unlock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub) {
1373   append(new LIR_OpLock(
1374                     lir_unlock,
1375                     hdr,
1376                     obj,
1377                     lock,
1378                     scratch,
1379                     stub,
1380                     NULL));
1381 }
1382 
1383 
1384 void check_LIR() {
1385   // cannot do the proper checking as PRODUCT and other modes return different results
1386   // guarantee(sizeof(LIR_OprDesc) == wordSize, "may not have a v-table");
1387 }
1388 
1389 
1390 
1391 void LIR_List::checkcast (LIR_Opr result, LIR_Opr object, ciKlass* klass,
1392                           LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
1393                           CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub,
1394                           ciMethod* profiled_method, int profiled_bci, bool is_never_null) {
1395   // If klass is non-nullable,  LIRGenerator::do_CheckCast has already performed null-check
1396   // on the object.
1397   bool need_null_check = !is_never_null;
1398   LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_checkcast, result, object, klass,
1399                                            tmp1, tmp2, tmp3, fast_check, info_for_exception, info_for_patch, stub);
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 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) {
1409   LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_instanceof, result, object, klass, tmp1, tmp2, tmp3, fast_check, NULL, info_for_patch, NULL);
1410   if (profiled_method != NULL) {
1411     c->set_profiled_method(profiled_method);
1412     c->set_profiled_bci(profiled_bci);
1413     c->set_should_profile(true);
1414   }
1415   append(c);
1416 }
1417 
1418 
1419 void LIR_List::store_check(LIR_Opr object, LIR_Opr array, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3,
1420                            CodeEmitInfo* info_for_exception, ciMethod* profiled_method, int profiled_bci) {
1421   LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_store_check, object, array, tmp1, tmp2, tmp3, info_for_exception);
1422   if (profiled_method != NULL) {
1423     c->set_profiled_method(profiled_method);
1424     c->set_profiled_bci(profiled_bci);
1425     c->set_should_profile(true);
1426   }
1427   append(c);
1428 }
1429 
1430 void LIR_List::null_check(LIR_Opr opr, CodeEmitInfo* info, bool deoptimize_on_null) {
1431   if (deoptimize_on_null) {
1432     // Emit an explicit null check and deoptimize if opr is null
1433     CodeStub* deopt = new DeoptimizeStub(info, Deoptimization::Reason_null_check, Deoptimization::Action_none);
1434     cmp(lir_cond_equal, opr, LIR_OprFact::oopConst(NULL));
1435     branch(lir_cond_equal, T_OBJECT, deopt);
1436   } else {
1437     // Emit an implicit null check
1438     append(new LIR_Op1(lir_null_check, opr, info));
1439   }
1440 }
1441 
1442 void LIR_List::cas_long(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_long, addr, cmp_value, new_value, t1, t2, result));
1445 }
1446 
1447 void LIR_List::cas_obj(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1448                        LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1449   append(new LIR_OpCompareAndSwap(lir_cas_obj, addr, cmp_value, new_value, t1, t2, result));
1450 }
1451 
1452 void LIR_List::cas_int(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1453                        LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1454   append(new LIR_OpCompareAndSwap(lir_cas_int, addr, cmp_value, new_value, t1, t2, result));
1455 }
1456 
1457 
1458 #ifdef PRODUCT
1459 
1460 void print_LIR(BlockList* blocks) {
1461 }
1462 
1463 #else
1464 // LIR_OprDesc
1465 void LIR_OprDesc::print() const {
1466   print(tty);
1467 }
1468 
1469 void LIR_OprDesc::print(outputStream* out) const {
1470   if (is_illegal()) {
1471     return;
1472   }
1473 
1474   out->print("[");
1475   if (is_pointer()) {
1476     pointer()->print_value_on(out);
1477   } else if (is_single_stack()) {
1478     out->print("stack:%d", single_stack_ix());
1479   } else if (is_double_stack()) {
1480     out->print("dbl_stack:%d",double_stack_ix());
1481   } else if (is_virtual()) {
1482     out->print("R%d", vreg_number());
1483   } else if (is_single_cpu()) {
1484     out->print("%s", as_register()->name());
1485   } else if (is_double_cpu()) {
1486     out->print("%s", as_register_hi()->name());
1487     out->print("%s", as_register_lo()->name());
1488 #if defined(X86)
1489   } else if (is_single_xmm()) {
1490     out->print("%s", as_xmm_float_reg()->name());
1491   } else if (is_double_xmm()) {
1492     out->print("%s", as_xmm_double_reg()->name());
1493   } else if (is_single_fpu()) {
1494     out->print("fpu%d", fpu_regnr());
1495   } else if (is_double_fpu()) {
1496     out->print("fpu%d", fpu_regnrLo());
1497 #elif defined(AARCH64)
1498   } else if (is_single_fpu()) {
1499     out->print("fpu%d", fpu_regnr());
1500   } else if (is_double_fpu()) {
1501     out->print("fpu%d", fpu_regnrLo());
1502 #elif defined(ARM)
1503   } else if (is_single_fpu()) {
1504     out->print("s%d", fpu_regnr());
1505   } else if (is_double_fpu()) {
1506     out->print("d%d", fpu_regnrLo() >> 1);
1507 #else
1508   } else if (is_single_fpu()) {
1509     out->print("%s", as_float_reg()->name());
1510   } else if (is_double_fpu()) {
1511     out->print("%s", as_double_reg()->name());
1512 #endif
1513 
1514   } else if (is_illegal()) {
1515     out->print("-");
1516   } else {
1517     out->print("Unknown Operand");
1518   }
1519   if (!is_illegal()) {
1520     out->print("|%c", type_char());
1521   }
1522   if (is_register() && is_last_use()) {
1523     out->print("(last_use)");
1524   }
1525   out->print("]");
1526 }
1527 
1528 
1529 // LIR_Address
1530 void LIR_Const::print_value_on(outputStream* out) const {
1531   switch (type()) {
1532     case T_ADDRESS:out->print("address:%d",as_jint());          break;
1533     case T_INT:    out->print("int:%d",   as_jint());           break;
1534     case T_LONG:   out->print("lng:" JLONG_FORMAT, as_jlong()); break;
1535     case T_FLOAT:  out->print("flt:%f",   as_jfloat());         break;
1536     case T_DOUBLE: out->print("dbl:%f",   as_jdouble());        break;
1537     case T_OBJECT: out->print("obj:" INTPTR_FORMAT, p2i(as_jobject()));        break;
1538     case T_METADATA: out->print("metadata:" INTPTR_FORMAT, p2i(as_metadata()));break;
1539     default:       out->print("%3d:0x" UINT64_FORMAT_X, type(), (uint64_t)as_jlong()); break;
1540   }
1541 }
1542 
1543 // LIR_Address
1544 void LIR_Address::print_value_on(outputStream* out) const {
1545   out->print("Base:"); _base->print(out);
1546   if (!_index->is_illegal()) {
1547     out->print(" Index:"); _index->print(out);
1548     switch (scale()) {
1549     case times_1: break;
1550     case times_2: out->print(" * 2"); break;
1551     case times_4: out->print(" * 4"); break;
1552     case times_8: out->print(" * 8"); break;
1553     }
1554   }
1555   out->print(" Disp: " INTX_FORMAT, _disp);
1556 }
1557 
1558 // debug output of block header without InstructionPrinter
1559 //       (because phi functions are not necessary for LIR)
1560 static void print_block(BlockBegin* x) {
1561   // print block id
1562   BlockEnd* end = x->end();
1563   tty->print("B%d ", x->block_id());
1564 
1565   // print flags
1566   if (x->is_set(BlockBegin::std_entry_flag))               tty->print("std ");
1567   if (x->is_set(BlockBegin::osr_entry_flag))               tty->print("osr ");
1568   if (x->is_set(BlockBegin::exception_entry_flag))         tty->print("ex ");
1569   if (x->is_set(BlockBegin::subroutine_entry_flag))        tty->print("jsr ");
1570   if (x->is_set(BlockBegin::backward_branch_target_flag))  tty->print("bb ");
1571   if (x->is_set(BlockBegin::linear_scan_loop_header_flag)) tty->print("lh ");
1572   if (x->is_set(BlockBegin::linear_scan_loop_end_flag))    tty->print("le ");
1573 
1574   // print block bci range
1575   tty->print("[%d, %d] ", x->bci(), (end == NULL ? -1 : end->printable_bci()));
1576 
1577   // print predecessors and successors
1578   if (x->number_of_preds() > 0) {
1579     tty->print("preds: ");
1580     for (int i = 0; i < x->number_of_preds(); i ++) {
1581       tty->print("B%d ", x->pred_at(i)->block_id());
1582     }
1583   }
1584 
1585   if (x->number_of_sux() > 0) {
1586     tty->print("sux: ");
1587     for (int i = 0; i < x->number_of_sux(); i ++) {
1588       tty->print("B%d ", x->sux_at(i)->block_id());
1589     }
1590   }
1591 
1592   // print exception handlers
1593   if (x->number_of_exception_handlers() > 0) {
1594     tty->print("xhandler: ");
1595     for (int i = 0; i < x->number_of_exception_handlers();  i++) {
1596       tty->print("B%d ", x->exception_handler_at(i)->block_id());
1597     }
1598   }
1599 
1600   tty->cr();
1601 }
1602 
1603 void print_LIR(BlockList* blocks) {
1604   tty->print_cr("LIR:");
1605   int i;
1606   for (i = 0; i < blocks->length(); i++) {
1607     BlockBegin* bb = blocks->at(i);
1608     print_block(bb);
1609     tty->print("__id_Instruction___________________________________________"); tty->cr();
1610     bb->lir()->print_instructions();
1611   }
1612 }
1613 
1614 void LIR_List::print_instructions() {
1615   for (int i = 0; i < _operations.length(); i++) {
1616     _operations.at(i)->print(); tty->cr();
1617   }
1618   tty->cr();
1619 }
1620 
1621 // LIR_Ops printing routines
1622 // LIR_Op
1623 void LIR_Op::print_on(outputStream* out) const {
1624   if (id() != -1 || PrintCFGToFile) {
1625     out->print("%4d ", id());
1626   } else {
1627     out->print("     ");
1628   }
1629   out->print("%s ", name());
1630   print_instr(out);
1631   if (info() != NULL) out->print(" [bci:%d]", info()->stack()->bci());
1632 #ifdef ASSERT
1633   if (Verbose && _file != NULL) {
1634     out->print(" (%s:%d)", _file, _line);
1635   }
1636 #endif
1637 }
1638 
1639 const char * LIR_Op::name() const {
1640   const char* s = NULL;
1641   switch(code()) {
1642      // LIR_Op0
1643      case lir_membar:                s = "membar";        break;
1644      case lir_membar_acquire:        s = "membar_acquire"; break;
1645      case lir_membar_release:        s = "membar_release"; break;
1646      case lir_membar_loadload:       s = "membar_loadload";   break;
1647      case lir_membar_storestore:     s = "membar_storestore"; break;
1648      case lir_membar_loadstore:      s = "membar_loadstore";  break;
1649      case lir_membar_storeload:      s = "membar_storeload";  break;
1650      case lir_word_align:            s = "word_align";    break;
1651      case lir_label:                 s = "label";         break;
1652      case lir_nop:                   s = "nop";           break;
1653      case lir_on_spin_wait:          s = "on_spin_wait";  break;
1654      case lir_backwardbranch_target: s = "backbranch";    break;
1655      case lir_std_entry:             s = "std_entry";     break;
1656      case lir_osr_entry:             s = "osr_entry";     break;
1657      case lir_build_frame:           s = "build_frm";     break;
1658      case lir_fpop_raw:              s = "fpop_raw";      break;
1659      case lir_24bit_FPU:             s = "24bit_FPU";     break;
1660      case lir_reset_FPU:             s = "reset_FPU";     break;
1661      case lir_breakpoint:            s = "breakpoint";    break;
1662      case lir_get_thread:            s = "get_thread";    break;
1663      // LIR_Op1
1664      case lir_fxch:                  s = "fxch";          break;
1665      case lir_fld:                   s = "fld";           break;
1666      case lir_ffree:                 s = "ffree";         break;
1667      case lir_push:                  s = "push";          break;
1668      case lir_pop:                   s = "pop";           break;
1669      case lir_null_check:            s = "null_check";    break;
1670      case lir_return:                s = "return";        break;
1671      case lir_safepoint:             s = "safepoint";     break;
1672      case lir_leal:                  s = "leal";          break;
1673      case lir_branch:                s = "branch";        break;
1674      case lir_cond_float_branch:     s = "flt_cond_br";   break;
1675      case lir_move:                  s = "move";          break;
1676      case lir_roundfp:               s = "roundfp";       break;
1677      case lir_rtcall:                s = "rtcall";        break;
1678      case lir_throw:                 s = "throw";         break;
1679      case lir_unwind:                s = "unwind";        break;
1680      case lir_convert:               s = "convert";       break;
1681      case lir_alloc_object:          s = "alloc_obj";     break;
1682      case lir_monaddr:               s = "mon_addr";      break;
1683      case lir_pack64:                s = "pack64";        break;
1684      case lir_unpack64:              s = "unpack64";      break;
1685      // LIR_Op2
1686      case lir_cmp:                   s = "cmp";           break;
1687      case lir_cmp_l2i:               s = "cmp_l2i";       break;
1688      case lir_ucmp_fd2i:             s = "ucomp_fd2i";    break;
1689      case lir_cmp_fd2i:              s = "comp_fd2i";     break;
1690      case lir_cmove:                 s = "cmove";         break;
1691      case lir_add:                   s = "add";           break;
1692      case lir_sub:                   s = "sub";           break;
1693      case lir_mul:                   s = "mul";           break;
1694      case lir_mul_strictfp:          s = "mul_strictfp";  break;
1695      case lir_div:                   s = "div";           break;
1696      case lir_div_strictfp:          s = "div_strictfp";  break;
1697      case lir_rem:                   s = "rem";           break;
1698      case lir_abs:                   s = "abs";           break;
1699      case lir_neg:                   s = "neg";           break;
1700      case lir_sqrt:                  s = "sqrt";          break;
1701      case lir_logic_and:             s = "logic_and";     break;
1702      case lir_logic_or:              s = "logic_or";      break;
1703      case lir_logic_xor:             s = "logic_xor";     break;
1704      case lir_shl:                   s = "shift_left";    break;
1705      case lir_shr:                   s = "shift_right";   break;
1706      case lir_ushr:                  s = "ushift_right";  break;
1707      case lir_alloc_array:           s = "alloc_array";   break;
1708      case lir_xadd:                  s = "xadd";          break;
1709      case lir_xchg:                  s = "xchg";          break;
1710      // LIR_Op3
1711      case lir_idiv:                  s = "idiv";          break;
1712      case lir_irem:                  s = "irem";          break;
1713      case lir_fmad:                  s = "fmad";          break;
1714      case lir_fmaf:                  s = "fmaf";          break;
1715      // LIR_OpJavaCall
1716      case lir_static_call:           s = "static";        break;
1717      case lir_optvirtual_call:       s = "optvirtual";    break;
1718      case lir_icvirtual_call:        s = "icvirtual";     break;
1719      case lir_virtual_call:          s = "virtual";       break;
1720      case lir_dynamic_call:          s = "dynamic";       break;
1721      // LIR_OpArrayCopy
1722      case lir_arraycopy:             s = "arraycopy";     break;
1723      // LIR_OpUpdateCRC32
1724      case lir_updatecrc32:           s = "updatecrc32";   break;
1725      // LIR_OpLock
1726      case lir_lock:                  s = "lock";          break;
1727      case lir_unlock:                s = "unlock";        break;
1728      // LIR_OpDelay
1729      case lir_delay_slot:            s = "delay";         break;
1730      // LIR_OpTypeCheck
1731      case lir_instanceof:            s = "instanceof";    break;
1732      case lir_checkcast:             s = "checkcast";     break;
1733      case lir_store_check:           s = "store_check";   break;
1734      // LIR_OpCompareAndSwap
1735      case lir_cas_long:              s = "cas_long";      break;
1736      case lir_cas_obj:               s = "cas_obj";      break;
1737      case lir_cas_int:               s = "cas_int";      break;
1738      // LIR_OpProfileCall
1739      case lir_profile_call:          s = "profile_call";  break;
1740      // LIR_OpProfileType
1741      case lir_profile_type:          s = "profile_type";  break;
1742      // LIR_OpAssert
1743 #ifdef ASSERT
1744      case lir_assert:                s = "assert";        break;
1745 #endif
1746      case lir_none:                  ShouldNotReachHere();break;
1747     default:                         s = "illegal_op";    break;
1748   }
1749   return s;
1750 }
1751 
1752 // LIR_OpJavaCall
1753 void LIR_OpJavaCall::print_instr(outputStream* out) const {
1754   out->print("call: ");
1755   out->print("[addr: " INTPTR_FORMAT "]", p2i(address()));
1756   if (receiver()->is_valid()) {
1757     out->print(" [recv: ");   receiver()->print(out);   out->print("]");
1758   }
1759   if (result_opr()->is_valid()) {
1760     out->print(" [result: "); result_opr()->print(out); out->print("]");
1761   }
1762 }
1763 
1764 // LIR_OpLabel
1765 void LIR_OpLabel::print_instr(outputStream* out) const {
1766   out->print("[label:" INTPTR_FORMAT "]", p2i(_label));
1767 }
1768 
1769 // LIR_OpArrayCopy
1770 void LIR_OpArrayCopy::print_instr(outputStream* out) const {
1771   src()->print(out);     out->print(" ");
1772   src_pos()->print(out); out->print(" ");
1773   dst()->print(out);     out->print(" ");
1774   dst_pos()->print(out); out->print(" ");
1775   length()->print(out);  out->print(" ");
1776   tmp()->print(out);     out->print(" ");
1777 }
1778 
1779 // LIR_OpUpdateCRC32
1780 void LIR_OpUpdateCRC32::print_instr(outputStream* out) const {
1781   crc()->print(out);     out->print(" ");
1782   val()->print(out);     out->print(" ");
1783   result_opr()->print(out); out->print(" ");
1784 }
1785 
1786 // LIR_OpCompareAndSwap
1787 void LIR_OpCompareAndSwap::print_instr(outputStream* out) const {
1788   addr()->print(out);      out->print(" ");
1789   cmp_value()->print(out); out->print(" ");
1790   new_value()->print(out); out->print(" ");
1791   tmp1()->print(out);      out->print(" ");
1792   tmp2()->print(out);      out->print(" ");
1793 
1794 }
1795 
1796 // LIR_Op0
1797 void LIR_Op0::print_instr(outputStream* out) const {
1798   result_opr()->print(out);
1799 }
1800 
1801 // LIR_Op1
1802 const char * LIR_Op1::name() const {
1803   if (code() == lir_move) {
1804     switch (move_kind()) {
1805     case lir_move_normal:
1806       return "move";
1807     case lir_move_unaligned:
1808       return "unaligned move";
1809     case lir_move_volatile:
1810       return "volatile_move";
1811     case lir_move_wide:
1812       return "wide_move";
1813     default:
1814       ShouldNotReachHere();
1815     return "illegal_op";
1816     }
1817   } else {
1818     return LIR_Op::name();
1819   }
1820 }
1821 
1822 
1823 void LIR_Op1::print_instr(outputStream* out) const {
1824   _opr->print(out);         out->print(" ");
1825   result_opr()->print(out); out->print(" ");
1826   print_patch_code(out, patch_code());
1827 }
1828 
1829 
1830 // LIR_Op1
1831 void LIR_OpRTCall::print_instr(outputStream* out) const {
1832   intx a = (intx)addr();
1833   out->print("%s", Runtime1::name_for_address(addr()));
1834   out->print(" ");
1835   tmp()->print(out);
1836 }
1837 
1838 void LIR_Op1::print_patch_code(outputStream* out, LIR_PatchCode code) {
1839   switch(code) {
1840     case lir_patch_none:                                 break;
1841     case lir_patch_low:    out->print("[patch_low]");    break;
1842     case lir_patch_high:   out->print("[patch_high]");   break;
1843     case lir_patch_normal: out->print("[patch_normal]"); break;
1844     default: ShouldNotReachHere();
1845   }
1846 }
1847 
1848 // LIR_OpBranch
1849 void LIR_OpBranch::print_instr(outputStream* out) const {
1850   print_condition(out, cond());             out->print(" ");
1851   if (block() != NULL) {
1852     out->print("[B%d] ", block()->block_id());
1853   } else if (stub() != NULL) {
1854     out->print("[");
1855     stub()->print_name(out);
1856     out->print(": " INTPTR_FORMAT "]", p2i(stub()));
1857     if (stub()->info() != NULL) out->print(" [bci:%d]", stub()->info()->stack()->bci());
1858   } else {
1859     out->print("[label:" INTPTR_FORMAT "] ", p2i(label()));
1860   }
1861   if (ublock() != NULL) {
1862     out->print("unordered: [B%d] ", ublock()->block_id());
1863   }
1864 }
1865 
1866 void LIR_Op::print_condition(outputStream* out, LIR_Condition cond) {
1867   switch(cond) {
1868     case lir_cond_equal:           out->print("[EQ]");      break;
1869     case lir_cond_notEqual:        out->print("[NE]");      break;
1870     case lir_cond_less:            out->print("[LT]");      break;
1871     case lir_cond_lessEqual:       out->print("[LE]");      break;
1872     case lir_cond_greaterEqual:    out->print("[GE]");      break;
1873     case lir_cond_greater:         out->print("[GT]");      break;
1874     case lir_cond_belowEqual:      out->print("[BE]");      break;
1875     case lir_cond_aboveEqual:      out->print("[AE]");      break;
1876     case lir_cond_always:          out->print("[AL]");      break;
1877     default:                       out->print("[%d]",cond); break;
1878   }
1879 }
1880 
1881 // LIR_OpConvert
1882 void LIR_OpConvert::print_instr(outputStream* out) const {
1883   print_bytecode(out, bytecode());
1884   in_opr()->print(out);                  out->print(" ");
1885   result_opr()->print(out);              out->print(" ");
1886 #ifdef PPC32
1887   if(tmp1()->is_valid()) {
1888     tmp1()->print(out); out->print(" ");
1889     tmp2()->print(out); out->print(" ");
1890   }
1891 #endif
1892 }
1893 
1894 void LIR_OpConvert::print_bytecode(outputStream* out, Bytecodes::Code code) {
1895   switch(code) {
1896     case Bytecodes::_d2f: out->print("[d2f] "); break;
1897     case Bytecodes::_d2i: out->print("[d2i] "); break;
1898     case Bytecodes::_d2l: out->print("[d2l] "); break;
1899     case Bytecodes::_f2d: out->print("[f2d] "); break;
1900     case Bytecodes::_f2i: out->print("[f2i] "); break;
1901     case Bytecodes::_f2l: out->print("[f2l] "); break;
1902     case Bytecodes::_i2b: out->print("[i2b] "); break;
1903     case Bytecodes::_i2c: out->print("[i2c] "); break;
1904     case Bytecodes::_i2d: out->print("[i2d] "); break;
1905     case Bytecodes::_i2f: out->print("[i2f] "); break;
1906     case Bytecodes::_i2l: out->print("[i2l] "); break;
1907     case Bytecodes::_i2s: out->print("[i2s] "); break;
1908     case Bytecodes::_l2i: out->print("[l2i] "); break;
1909     case Bytecodes::_l2f: out->print("[l2f] "); break;
1910     case Bytecodes::_l2d: out->print("[l2d] "); break;
1911     default:
1912       out->print("[?%d]",code);
1913     break;
1914   }
1915 }
1916 
1917 void LIR_OpAllocObj::print_instr(outputStream* out) const {
1918   klass()->print(out);                      out->print(" ");
1919   obj()->print(out);                        out->print(" ");
1920   tmp1()->print(out);                       out->print(" ");
1921   tmp2()->print(out);                       out->print(" ");
1922   tmp3()->print(out);                       out->print(" ");
1923   tmp4()->print(out);                       out->print(" ");
1924   out->print("[hdr:%d]", header_size()); out->print(" ");
1925   out->print("[obj:%d]", object_size()); out->print(" ");
1926   out->print("[lbl:" INTPTR_FORMAT "]", p2i(stub()->entry()));
1927 }
1928 
1929 void LIR_OpRoundFP::print_instr(outputStream* out) const {
1930   _opr->print(out);         out->print(" ");
1931   tmp()->print(out);        out->print(" ");
1932   result_opr()->print(out); out->print(" ");
1933 }
1934 
1935 // LIR_Op2
1936 void LIR_Op2::print_instr(outputStream* out) const {
1937   if (code() == lir_cmove || code() == lir_cmp) {
1938     print_condition(out, condition());         out->print(" ");
1939   }
1940   in_opr1()->print(out);    out->print(" ");
1941   in_opr2()->print(out);    out->print(" ");
1942   if (tmp1_opr()->is_valid()) { tmp1_opr()->print(out);    out->print(" "); }
1943   if (tmp2_opr()->is_valid()) { tmp2_opr()->print(out);    out->print(" "); }
1944   if (tmp3_opr()->is_valid()) { tmp3_opr()->print(out);    out->print(" "); }
1945   if (tmp4_opr()->is_valid()) { tmp4_opr()->print(out);    out->print(" "); }
1946   if (tmp5_opr()->is_valid()) { tmp5_opr()->print(out);    out->print(" "); }
1947   result_opr()->print(out);
1948 }
1949 
1950 void LIR_OpAllocArray::print_instr(outputStream* out) const {
1951   klass()->print(out);                   out->print(" ");
1952   len()->print(out);                     out->print(" ");
1953   obj()->print(out);                     out->print(" ");
1954   tmp1()->print(out);                    out->print(" ");
1955   tmp2()->print(out);                    out->print(" ");
1956   tmp3()->print(out);                    out->print(" ");
1957   tmp4()->print(out);                    out->print(" ");
1958   out->print("[type:0x%x]", type());     out->print(" ");
1959   out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry()));
1960 }
1961 
1962 
1963 void LIR_OpTypeCheck::print_instr(outputStream* out) const {
1964   object()->print(out);                  out->print(" ");
1965   if (code() == lir_store_check) {
1966     array()->print(out);                 out->print(" ");
1967   }
1968   if (code() != lir_store_check) {
1969     klass()->print_name_on(out);         out->print(" ");
1970     if (fast_check())                 out->print("fast_check ");
1971   }
1972   tmp1()->print(out);                    out->print(" ");
1973   tmp2()->print(out);                    out->print(" ");
1974   tmp3()->print(out);                    out->print(" ");
1975   result_opr()->print(out);              out->print(" ");
1976   if (info_for_exception() != NULL) out->print(" [bci:%d]", info_for_exception()->stack()->bci());
1977 }
1978 
1979 
1980 // LIR_Op3
1981 void LIR_Op3::print_instr(outputStream* out) const {
1982   in_opr1()->print(out);    out->print(" ");
1983   in_opr2()->print(out);    out->print(" ");
1984   in_opr3()->print(out);    out->print(" ");
1985   result_opr()->print(out);
1986 }
1987 
1988 
1989 void LIR_OpLock::print_instr(outputStream* out) const {
1990   hdr_opr()->print(out);   out->print(" ");
1991   obj_opr()->print(out);   out->print(" ");
1992   lock_opr()->print(out);  out->print(" ");
1993   if (_scratch->is_valid()) {
1994     _scratch->print(out);  out->print(" ");
1995   }
1996   out->print("[lbl:" INTPTR_FORMAT "]", p2i(stub()->entry()));
1997 }
1998 
1999 #ifdef ASSERT
2000 void LIR_OpAssert::print_instr(outputStream* out) const {
2001   print_condition(out, condition()); out->print(" ");
2002   in_opr1()->print(out);             out->print(" ");
2003   in_opr2()->print(out);             out->print(", \"");
2004   out->print("%s", msg());          out->print("\"");
2005 }
2006 #endif
2007 
2008 
2009 void LIR_OpDelay::print_instr(outputStream* out) const {
2010   _op->print_on(out);
2011 }
2012 
2013 
2014 // LIR_OpProfileCall
2015 void LIR_OpProfileCall::print_instr(outputStream* out) const {
2016   profiled_method()->name()->print_symbol_on(out);
2017   out->print(".");
2018   profiled_method()->holder()->name()->print_symbol_on(out);
2019   out->print(" @ %d ", profiled_bci());
2020   mdo()->print(out);           out->print(" ");
2021   recv()->print(out);          out->print(" ");
2022   tmp1()->print(out);          out->print(" ");
2023 }
2024 
2025 // LIR_OpProfileType
2026 void LIR_OpProfileType::print_instr(outputStream* out) const {
2027   out->print("exact = ");
2028   if  (exact_klass() == NULL) {
2029     out->print("unknown");
2030   } else {
2031     exact_klass()->print_name_on(out);
2032   }
2033   out->print(" current = "); ciTypeEntries::print_ciklass(out, current_klass());
2034   out->print(" ");
2035   mdp()->print(out);          out->print(" ");
2036   obj()->print(out);          out->print(" ");
2037   tmp()->print(out);          out->print(" ");
2038 }
2039 
2040 #endif // PRODUCT
2041 
2042 // Implementation of LIR_InsertionBuffer
2043 
2044 void LIR_InsertionBuffer::append(int index, LIR_Op* op) {
2045   assert(_index_and_count.length() % 2 == 0, "must have a count for each index");
2046 
2047   int i = number_of_insertion_points() - 1;
2048   if (i < 0 || index_at(i) < index) {
2049     append_new(index, 1);
2050   } else {
2051     assert(index_at(i) == index, "can append LIR_Ops in ascending order only");
2052     assert(count_at(i) > 0, "check");
2053     set_count_at(i, count_at(i) + 1);
2054   }
2055   _ops.push(op);
2056 
2057   DEBUG_ONLY(verify());
2058 }
2059 
2060 #ifdef ASSERT
2061 void LIR_InsertionBuffer::verify() {
2062   int sum = 0;
2063   int prev_idx = -1;
2064 
2065   for (int i = 0; i < number_of_insertion_points(); i++) {
2066     assert(prev_idx < index_at(i), "index must be ordered ascending");
2067     sum += count_at(i);
2068   }
2069   assert(sum == number_of_ops(), "wrong total sum");
2070 }
2071 #endif