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       do_stub(opLock->_throw_imse_stub);
 825 
 826       break;
 827     }
 828 
 829 
 830 // LIR_OpDelay
 831     case lir_delay_slot: {
 832       assert(op->as_OpDelay() != NULL, "must be");
 833       LIR_OpDelay* opDelay = (LIR_OpDelay*)op;
 834 
 835       visit(opDelay->delay_op());
 836       break;
 837     }
 838 
 839 // LIR_OpTypeCheck
 840     case lir_instanceof:
 841     case lir_checkcast:
 842     case lir_store_check: {
 843       assert(op->as_OpTypeCheck() != NULL, "must be");
 844       LIR_OpTypeCheck* opTypeCheck = (LIR_OpTypeCheck*)op;
 845 
 846       if (opTypeCheck->_info_for_exception)       do_info(opTypeCheck->_info_for_exception);
 847       if (opTypeCheck->_info_for_patch)           do_info(opTypeCheck->_info_for_patch);
 848       if (opTypeCheck->_object->is_valid())       do_input(opTypeCheck->_object);
 849       if (op->code() == lir_store_check && opTypeCheck->_object->is_valid()) {
 850         do_temp(opTypeCheck->_object);
 851       }
 852       if (opTypeCheck->_array->is_valid())        do_input(opTypeCheck->_array);
 853       if (opTypeCheck->_tmp1->is_valid())         do_temp(opTypeCheck->_tmp1);
 854       if (opTypeCheck->_tmp2->is_valid())         do_temp(opTypeCheck->_tmp2);
 855       if (opTypeCheck->_tmp3->is_valid())         do_temp(opTypeCheck->_tmp3);
 856       if (opTypeCheck->_result->is_valid())       do_output(opTypeCheck->_result);
 857                                                   do_stub(opTypeCheck->_stub);
 858       break;
 859     }
 860 
 861 // LIR_OpCompareAndSwap
 862     case lir_cas_long:
 863     case lir_cas_obj:
 864     case lir_cas_int: {
 865       assert(op->as_OpCompareAndSwap() != NULL, "must be");
 866       LIR_OpCompareAndSwap* opCompareAndSwap = (LIR_OpCompareAndSwap*)op;
 867 
 868       assert(opCompareAndSwap->_addr->is_valid(),      "used");
 869       assert(opCompareAndSwap->_cmp_value->is_valid(), "used");
 870       assert(opCompareAndSwap->_new_value->is_valid(), "used");
 871       if (opCompareAndSwap->_info)                    do_info(opCompareAndSwap->_info);
 872                                                       do_input(opCompareAndSwap->_addr);
 873                                                       do_temp(opCompareAndSwap->_addr);
 874                                                       do_input(opCompareAndSwap->_cmp_value);
 875                                                       do_temp(opCompareAndSwap->_cmp_value);
 876                                                       do_input(opCompareAndSwap->_new_value);
 877                                                       do_temp(opCompareAndSwap->_new_value);
 878       if (opCompareAndSwap->_tmp1->is_valid())        do_temp(opCompareAndSwap->_tmp1);
 879       if (opCompareAndSwap->_tmp2->is_valid())        do_temp(opCompareAndSwap->_tmp2);
 880       if (opCompareAndSwap->_result->is_valid())      do_output(opCompareAndSwap->_result);
 881 
 882       break;
 883     }
 884 
 885 
 886 // LIR_OpAllocArray;
 887     case lir_alloc_array: {
 888       assert(op->as_OpAllocArray() != NULL, "must be");
 889       LIR_OpAllocArray* opAllocArray = (LIR_OpAllocArray*)op;
 890 
 891       if (opAllocArray->_info)                        do_info(opAllocArray->_info);
 892       if (opAllocArray->_klass->is_valid())           do_input(opAllocArray->_klass); do_temp(opAllocArray->_klass);
 893       if (opAllocArray->_len->is_valid())             do_input(opAllocArray->_len);   do_temp(opAllocArray->_len);
 894       if (opAllocArray->_tmp1->is_valid())            do_temp(opAllocArray->_tmp1);
 895       if (opAllocArray->_tmp2->is_valid())            do_temp(opAllocArray->_tmp2);
 896       if (opAllocArray->_tmp3->is_valid())            do_temp(opAllocArray->_tmp3);
 897       if (opAllocArray->_tmp4->is_valid())            do_temp(opAllocArray->_tmp4);
 898       if (opAllocArray->_result->is_valid())          do_output(opAllocArray->_result);
 899                                                       do_stub(opAllocArray->_stub);
 900       break;
 901     }
 902 
 903 // LIR_OpProfileCall:
 904     case lir_profile_call: {
 905       assert(op->as_OpProfileCall() != NULL, "must be");
 906       LIR_OpProfileCall* opProfileCall = (LIR_OpProfileCall*)op;
 907 
 908       if (opProfileCall->_recv->is_valid())              do_temp(opProfileCall->_recv);
 909       assert(opProfileCall->_mdo->is_valid(), "used");   do_temp(opProfileCall->_mdo);
 910       assert(opProfileCall->_tmp1->is_valid(), "used");  do_temp(opProfileCall->_tmp1);
 911       break;
 912     }
 913 
 914 // LIR_OpProfileType:
 915     case lir_profile_type: {
 916       assert(op->as_OpProfileType() != NULL, "must be");
 917       LIR_OpProfileType* opProfileType = (LIR_OpProfileType*)op;
 918 
 919       do_input(opProfileType->_mdp); do_temp(opProfileType->_mdp);
 920       do_input(opProfileType->_obj);
 921       do_temp(opProfileType->_tmp);
 922       break;
 923     }
 924   default:
 925     op->visit(this);
 926   }
 927 }
 928 
 929 void LIR_Op::visit(LIR_OpVisitState* state) {
 930   ShouldNotReachHere();
 931 }
 932 
 933 void LIR_OpVisitState::do_stub(CodeStub* stub) {
 934   if (stub != NULL) {
 935     stub->visit(this);
 936   }
 937 }
 938 
 939 XHandlers* LIR_OpVisitState::all_xhandler() {
 940   XHandlers* result = NULL;
 941 
 942   int i;
 943   for (i = 0; i < info_count(); i++) {
 944     if (info_at(i)->exception_handlers() != NULL) {
 945       result = info_at(i)->exception_handlers();
 946       break;
 947     }
 948   }
 949 
 950 #ifdef ASSERT
 951   for (i = 0; i < info_count(); i++) {
 952     assert(info_at(i)->exception_handlers() == NULL ||
 953            info_at(i)->exception_handlers() == result,
 954            "only one xhandler list allowed per LIR-operation");
 955   }
 956 #endif
 957 
 958   if (result != NULL) {
 959     return result;
 960   } else {
 961     return new XHandlers();
 962   }
 963 
 964   return result;
 965 }
 966 
 967 
 968 #ifdef ASSERT
 969 bool LIR_OpVisitState::no_operands(LIR_Op* op) {
 970   visit(op);
 971 
 972   return opr_count(inputMode) == 0 &&
 973          opr_count(outputMode) == 0 &&
 974          opr_count(tempMode) == 0 &&
 975          info_count() == 0 &&
 976          !has_call() &&
 977          !has_slow_case();
 978 }
 979 #endif
 980 
 981 //---------------------------------------------------
 982 
 983 
 984 void LIR_OpJavaCall::emit_code(LIR_Assembler* masm) {
 985   masm->emit_call(this);
 986 }
 987 
 988 void LIR_OpRTCall::emit_code(LIR_Assembler* masm) {
 989   masm->emit_rtcall(this);
 990 }
 991 
 992 void LIR_OpLabel::emit_code(LIR_Assembler* masm) {
 993   masm->emit_opLabel(this);
 994 }
 995 
 996 void LIR_OpArrayCopy::emit_code(LIR_Assembler* masm) {
 997   masm->emit_arraycopy(this);
 998   masm->append_code_stub(stub());
 999 }
1000 
1001 void LIR_OpUpdateCRC32::emit_code(LIR_Assembler* masm) {
1002   masm->emit_updatecrc32(this);
1003 }
1004 
1005 void LIR_Op0::emit_code(LIR_Assembler* masm) {
1006   masm->emit_op0(this);
1007 }
1008 
1009 void LIR_Op1::emit_code(LIR_Assembler* masm) {
1010   masm->emit_op1(this);
1011 }
1012 
1013 void LIR_OpAllocObj::emit_code(LIR_Assembler* masm) {
1014   masm->emit_alloc_obj(this);
1015   masm->append_code_stub(stub());
1016 }
1017 
1018 void LIR_OpBranch::emit_code(LIR_Assembler* masm) {
1019   masm->emit_opBranch(this);
1020   if (stub()) {
1021     masm->append_code_stub(stub());
1022   }
1023 }
1024 
1025 void LIR_OpConvert::emit_code(LIR_Assembler* masm) {
1026   masm->emit_opConvert(this);
1027   if (stub() != NULL) {
1028     masm->append_code_stub(stub());
1029   }
1030 }
1031 
1032 void LIR_Op2::emit_code(LIR_Assembler* masm) {
1033   masm->emit_op2(this);
1034 }
1035 
1036 void LIR_OpAllocArray::emit_code(LIR_Assembler* masm) {
1037   masm->emit_alloc_array(this);
1038   masm->append_code_stub(stub());
1039 }
1040 
1041 void LIR_OpTypeCheck::emit_code(LIR_Assembler* masm) {
1042   masm->emit_opTypeCheck(this);
1043   if (stub()) {
1044     masm->append_code_stub(stub());
1045   }
1046 }
1047 
1048 void LIR_OpCompareAndSwap::emit_code(LIR_Assembler* masm) {
1049   masm->emit_compare_and_swap(this);
1050 }
1051 
1052 void LIR_Op3::emit_code(LIR_Assembler* masm) {
1053   masm->emit_op3(this);
1054 }
1055 
1056 void LIR_OpLock::emit_code(LIR_Assembler* masm) {
1057   masm->emit_lock(this);
1058   if (stub()) {
1059     masm->append_code_stub(stub());
1060   }
1061   if (throw_imse_stub()) {
1062     masm->append_code_stub(throw_imse_stub());
1063   }
1064 }
1065 
1066 #ifdef ASSERT
1067 void LIR_OpAssert::emit_code(LIR_Assembler* masm) {
1068   masm->emit_assert(this);
1069 }
1070 #endif
1071 
1072 void LIR_OpDelay::emit_code(LIR_Assembler* masm) {
1073   masm->emit_delay(this);
1074 }
1075 
1076 void LIR_OpProfileCall::emit_code(LIR_Assembler* masm) {
1077   masm->emit_profile_call(this);
1078 }
1079 
1080 void LIR_OpProfileType::emit_code(LIR_Assembler* masm) {
1081   masm->emit_profile_type(this);
1082 }
1083 
1084 // LIR_List
1085 LIR_List::LIR_List(Compilation* compilation, BlockBegin* block)
1086   : _operations(8)
1087   , _compilation(compilation)
1088 #ifndef PRODUCT
1089   , _block(block)
1090 #endif
1091 #ifdef ASSERT
1092   , _file(NULL)
1093   , _line(0)
1094 #endif
1095 { }
1096 
1097 
1098 #ifdef ASSERT
1099 void LIR_List::set_file_and_line(const char * file, int line) {
1100   const char * f = strrchr(file, '/');
1101   if (f == NULL) f = strrchr(file, '\\');
1102   if (f == NULL) {
1103     f = file;
1104   } else {
1105     f++;
1106   }
1107   _file = f;
1108   _line = line;
1109 }
1110 #endif
1111 
1112 
1113 void LIR_List::append(LIR_InsertionBuffer* buffer) {
1114   assert(this == buffer->lir_list(), "wrong lir list");
1115   const int n = _operations.length();
1116 
1117   if (buffer->number_of_ops() > 0) {
1118     // increase size of instructions list
1119     _operations.at_grow(n + buffer->number_of_ops() - 1, NULL);
1120     // insert ops from buffer into instructions list
1121     int op_index = buffer->number_of_ops() - 1;
1122     int ip_index = buffer->number_of_insertion_points() - 1;
1123     int from_index = n - 1;
1124     int to_index = _operations.length() - 1;
1125     for (; ip_index >= 0; ip_index --) {
1126       int index = buffer->index_at(ip_index);
1127       // make room after insertion point
1128       while (index < from_index) {
1129         _operations.at_put(to_index --, _operations.at(from_index --));
1130       }
1131       // insert ops from buffer
1132       for (int i = buffer->count_at(ip_index); i > 0; i --) {
1133         _operations.at_put(to_index --, buffer->op_at(op_index --));
1134       }
1135     }
1136   }
1137 
1138   buffer->finish();
1139 }
1140 
1141 
1142 void LIR_List::oop2reg_patch(jobject o, LIR_Opr reg, CodeEmitInfo* info) {
1143   assert(reg->type() == T_OBJECT, "bad reg");
1144   append(new LIR_Op1(lir_move, LIR_OprFact::oopConst(o),  reg, T_OBJECT, lir_patch_normal, info));
1145 }
1146 
1147 void LIR_List::klass2reg_patch(Metadata* o, LIR_Opr reg, CodeEmitInfo* info) {
1148   assert(reg->type() == T_METADATA, "bad reg");
1149   append(new LIR_Op1(lir_move, LIR_OprFact::metadataConst(o), reg, T_METADATA, lir_patch_normal, info));
1150 }
1151 
1152 void LIR_List::load(LIR_Address* addr, LIR_Opr src, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1153   append(new LIR_Op1(
1154             lir_move,
1155             LIR_OprFact::address(addr),
1156             src,
1157             addr->type(),
1158             patch_code,
1159             info));
1160 }
1161 
1162 
1163 void LIR_List::volatile_load_mem_reg(LIR_Address* address, LIR_Opr dst, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1164   append(new LIR_Op1(
1165             lir_move,
1166             LIR_OprFact::address(address),
1167             dst,
1168             address->type(),
1169             patch_code,
1170             info, lir_move_volatile));
1171 }
1172 
1173 void LIR_List::volatile_load_unsafe_reg(LIR_Opr base, LIR_Opr offset, LIR_Opr dst, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1174   append(new LIR_Op1(
1175             lir_move,
1176             LIR_OprFact::address(new LIR_Address(base, offset, type)),
1177             dst,
1178             type,
1179             patch_code,
1180             info, lir_move_volatile));
1181 }
1182 
1183 
1184 void LIR_List::store_mem_int(jint v, 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::intConst(v),
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_mem_oop(jobject o, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1196   append(new LIR_Op1(
1197             lir_move,
1198             LIR_OprFact::oopConst(o),
1199             LIR_OprFact::address(new LIR_Address(base, offset_in_bytes, type)),
1200             type,
1201             patch_code,
1202             info));
1203 }
1204 
1205 
1206 void LIR_List::store(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 }
1215 
1216 
1217 void LIR_List::volatile_store_mem_reg(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1218   append(new LIR_Op1(
1219             lir_move,
1220             src,
1221             LIR_OprFact::address(addr),
1222             addr->type(),
1223             patch_code,
1224             info,
1225             lir_move_volatile));
1226 }
1227 
1228 void LIR_List::volatile_store_unsafe_reg(LIR_Opr src, LIR_Opr base, LIR_Opr offset, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1229   append(new LIR_Op1(
1230             lir_move,
1231             src,
1232             LIR_OprFact::address(new LIR_Address(base, offset, type)),
1233             type,
1234             patch_code,
1235             info, lir_move_volatile));
1236 }
1237 
1238 
1239 void LIR_List::idiv(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1240   append(new LIR_Op3(
1241                     lir_idiv,
1242                     left,
1243                     right,
1244                     tmp,
1245                     res,
1246                     info));
1247 }
1248 
1249 
1250 void LIR_List::idiv(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1251   append(new LIR_Op3(
1252                     lir_idiv,
1253                     left,
1254                     LIR_OprFact::intConst(right),
1255                     tmp,
1256                     res,
1257                     info));
1258 }
1259 
1260 
1261 void LIR_List::irem(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1262   append(new LIR_Op3(
1263                     lir_irem,
1264                     left,
1265                     right,
1266                     tmp,
1267                     res,
1268                     info));
1269 }
1270 
1271 
1272 void LIR_List::irem(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1273   append(new LIR_Op3(
1274                     lir_irem,
1275                     left,
1276                     LIR_OprFact::intConst(right),
1277                     tmp,
1278                     res,
1279                     info));
1280 }
1281 
1282 
1283 void LIR_List::cmp_mem_int(LIR_Condition condition, LIR_Opr base, int disp, int c, CodeEmitInfo* info) {
1284   append(new LIR_Op2(
1285                     lir_cmp,
1286                     condition,
1287                     LIR_OprFact::address(new LIR_Address(base, disp, T_INT)),
1288                     LIR_OprFact::intConst(c),
1289                     info));
1290 }
1291 
1292 
1293 void LIR_List::cmp_reg_mem(LIR_Condition condition, LIR_Opr reg, LIR_Address* addr, CodeEmitInfo* info) {
1294   append(new LIR_Op2(
1295                     lir_cmp,
1296                     condition,
1297                     reg,
1298                     LIR_OprFact::address(addr),
1299                     info));
1300 }
1301 
1302 void LIR_List::allocate_object(LIR_Opr dst, LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4,
1303                                int header_size, int object_size, LIR_Opr klass, bool init_check, CodeStub* stub) {
1304   append(new LIR_OpAllocObj(
1305                            klass,
1306                            dst,
1307                            t1,
1308                            t2,
1309                            t3,
1310                            t4,
1311                            header_size,
1312                            object_size,
1313                            init_check,
1314                            stub));
1315 }
1316 
1317 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) {
1318   append(new LIR_OpAllocArray(
1319                            klass,
1320                            len,
1321                            dst,
1322                            t1,
1323                            t2,
1324                            t3,
1325                            t4,
1326                            type,
1327                            stub));
1328 }
1329 
1330 void LIR_List::shift_left(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1331  append(new LIR_Op2(
1332                     lir_shl,
1333                     value,
1334                     count,
1335                     dst,
1336                     tmp));
1337 }
1338 
1339 void LIR_List::shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1340  append(new LIR_Op2(
1341                     lir_shr,
1342                     value,
1343                     count,
1344                     dst,
1345                     tmp));
1346 }
1347 
1348 
1349 void LIR_List::unsigned_shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1350  append(new LIR_Op2(
1351                     lir_ushr,
1352                     value,
1353                     count,
1354                     dst,
1355                     tmp));
1356 }
1357 
1358 void LIR_List::fcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst, bool is_unordered_less) {
1359   append(new LIR_Op2(is_unordered_less ? lir_ucmp_fd2i : lir_cmp_fd2i,
1360                      left,
1361                      right,
1362                      dst));
1363 }
1364 
1365 void LIR_List::lock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info, CodeStub* throw_imse_stub) {
1366   append(new LIR_OpLock(
1367                     lir_lock,
1368                     hdr,
1369                     obj,
1370                     lock,
1371                     scratch,
1372                     stub,
1373                     info,
1374                     throw_imse_stub));
1375 }
1376 
1377 void LIR_List::unlock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub) {
1378   append(new LIR_OpLock(
1379                     lir_unlock,
1380                     hdr,
1381                     obj,
1382                     lock,
1383                     scratch,
1384                     stub,
1385                     NULL));
1386 }
1387 
1388 
1389 void check_LIR() {
1390   // cannot do the proper checking as PRODUCT and other modes return different results
1391   // guarantee(sizeof(LIR_OprDesc) == wordSize, "may not have a v-table");
1392 }
1393 
1394 
1395 
1396 void LIR_List::checkcast (LIR_Opr result, LIR_Opr object, ciKlass* klass,
1397                           LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
1398                           CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub,
1399                           ciMethod* profiled_method, int profiled_bci, bool is_never_null) {
1400   // If klass is non-nullable,  LIRGenerator::do_CheckCast has already performed null-check
1401   // on the object.
1402   bool need_null_check = !is_never_null;
1403   LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_checkcast, result, object, klass,
1404                                            tmp1, tmp2, tmp3, fast_check, info_for_exception, info_for_patch, stub);
1405   if (profiled_method != NULL) {
1406     c->set_profiled_method(profiled_method);
1407     c->set_profiled_bci(profiled_bci);
1408     c->set_should_profile(true);
1409   }
1410   append(c);
1411 }
1412 
1413 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) {
1414   LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_instanceof, result, object, klass, tmp1, tmp2, tmp3, fast_check, NULL, info_for_patch, NULL);
1415   if (profiled_method != NULL) {
1416     c->set_profiled_method(profiled_method);
1417     c->set_profiled_bci(profiled_bci);
1418     c->set_should_profile(true);
1419   }
1420   append(c);
1421 }
1422 
1423 
1424 void LIR_List::store_check(LIR_Opr object, LIR_Opr array, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3,
1425                            CodeEmitInfo* info_for_exception, ciMethod* profiled_method, int profiled_bci) {
1426   LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_store_check, object, array, tmp1, tmp2, tmp3, info_for_exception);
1427   if (profiled_method != NULL) {
1428     c->set_profiled_method(profiled_method);
1429     c->set_profiled_bci(profiled_bci);
1430     c->set_should_profile(true);
1431   }
1432   append(c);
1433 }
1434 
1435 void LIR_List::null_check(LIR_Opr opr, CodeEmitInfo* info, bool deoptimize_on_null) {
1436   if (deoptimize_on_null) {
1437     // Emit an explicit null check and deoptimize if opr is null
1438     CodeStub* deopt = new DeoptimizeStub(info, Deoptimization::Reason_null_check, Deoptimization::Action_none);
1439     cmp(lir_cond_equal, opr, LIR_OprFact::oopConst(NULL));
1440     branch(lir_cond_equal, T_OBJECT, deopt);
1441   } else {
1442     // Emit an implicit null check
1443     append(new LIR_Op1(lir_null_check, opr, info));
1444   }
1445 }
1446 
1447 void LIR_List::cas_long(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_long, addr, cmp_value, new_value, t1, t2, result));
1450 }
1451 
1452 void LIR_List::cas_obj(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_obj, addr, cmp_value, new_value, t1, t2, result));
1455 }
1456 
1457 void LIR_List::cas_int(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1458                        LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1459   append(new LIR_OpCompareAndSwap(lir_cas_int, addr, cmp_value, new_value, t1, t2, result));
1460 }
1461 
1462 
1463 #ifdef PRODUCT
1464 
1465 void print_LIR(BlockList* blocks) {
1466 }
1467 
1468 #else
1469 // LIR_OprDesc
1470 void LIR_OprDesc::print() const {
1471   print(tty);
1472 }
1473 
1474 void LIR_OprDesc::print(outputStream* out) const {
1475   if (is_illegal()) {
1476     return;
1477   }
1478 
1479   out->print("[");
1480   if (is_pointer()) {
1481     pointer()->print_value_on(out);
1482   } else if (is_single_stack()) {
1483     out->print("stack:%d", single_stack_ix());
1484   } else if (is_double_stack()) {
1485     out->print("dbl_stack:%d",double_stack_ix());
1486   } else if (is_virtual()) {
1487     out->print("R%d", vreg_number());
1488   } else if (is_single_cpu()) {
1489     out->print("%s", as_register()->name());
1490   } else if (is_double_cpu()) {
1491     out->print("%s", as_register_hi()->name());
1492     out->print("%s", as_register_lo()->name());
1493 #if defined(X86)
1494   } else if (is_single_xmm()) {
1495     out->print("%s", as_xmm_float_reg()->name());
1496   } else if (is_double_xmm()) {
1497     out->print("%s", as_xmm_double_reg()->name());
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(AARCH64)
1503   } else if (is_single_fpu()) {
1504     out->print("fpu%d", fpu_regnr());
1505   } else if (is_double_fpu()) {
1506     out->print("fpu%d", fpu_regnrLo());
1507 #elif defined(ARM)
1508   } else if (is_single_fpu()) {
1509     out->print("s%d", fpu_regnr());
1510   } else if (is_double_fpu()) {
1511     out->print("d%d", fpu_regnrLo() >> 1);
1512 #else
1513   } else if (is_single_fpu()) {
1514     out->print("%s", as_float_reg()->name());
1515   } else if (is_double_fpu()) {
1516     out->print("%s", as_double_reg()->name());
1517 #endif
1518 
1519   } else if (is_illegal()) {
1520     out->print("-");
1521   } else {
1522     out->print("Unknown Operand");
1523   }
1524   if (!is_illegal()) {
1525     out->print("|%c", type_char());
1526   }
1527   if (is_register() && is_last_use()) {
1528     out->print("(last_use)");
1529   }
1530   out->print("]");
1531 }
1532 
1533 
1534 // LIR_Address
1535 void LIR_Const::print_value_on(outputStream* out) const {
1536   switch (type()) {
1537     case T_ADDRESS:out->print("address:%d",as_jint());          break;
1538     case T_INT:    out->print("int:%d",   as_jint());           break;
1539     case T_LONG:   out->print("lng:" JLONG_FORMAT, as_jlong()); break;
1540     case T_FLOAT:  out->print("flt:%f",   as_jfloat());         break;
1541     case T_DOUBLE: out->print("dbl:%f",   as_jdouble());        break;
1542     case T_OBJECT: out->print("obj:" INTPTR_FORMAT, p2i(as_jobject()));        break;
1543     case T_METADATA: out->print("metadata:" INTPTR_FORMAT, p2i(as_metadata()));break;
1544     default:       out->print("%3d:0x" UINT64_FORMAT_X, type(), (uint64_t)as_jlong()); break;
1545   }
1546 }
1547 
1548 // LIR_Address
1549 void LIR_Address::print_value_on(outputStream* out) const {
1550   out->print("Base:"); _base->print(out);
1551   if (!_index->is_illegal()) {
1552     out->print(" Index:"); _index->print(out);
1553     switch (scale()) {
1554     case times_1: break;
1555     case times_2: out->print(" * 2"); break;
1556     case times_4: out->print(" * 4"); break;
1557     case times_8: out->print(" * 8"); break;
1558     }
1559   }
1560   out->print(" Disp: " INTX_FORMAT, _disp);
1561 }
1562 
1563 // debug output of block header without InstructionPrinter
1564 //       (because phi functions are not necessary for LIR)
1565 static void print_block(BlockBegin* x) {
1566   // print block id
1567   BlockEnd* end = x->end();
1568   tty->print("B%d ", x->block_id());
1569 
1570   // print flags
1571   if (x->is_set(BlockBegin::std_entry_flag))               tty->print("std ");
1572   if (x->is_set(BlockBegin::osr_entry_flag))               tty->print("osr ");
1573   if (x->is_set(BlockBegin::exception_entry_flag))         tty->print("ex ");
1574   if (x->is_set(BlockBegin::subroutine_entry_flag))        tty->print("jsr ");
1575   if (x->is_set(BlockBegin::backward_branch_target_flag))  tty->print("bb ");
1576   if (x->is_set(BlockBegin::linear_scan_loop_header_flag)) tty->print("lh ");
1577   if (x->is_set(BlockBegin::linear_scan_loop_end_flag))    tty->print("le ");
1578 
1579   // print block bci range
1580   tty->print("[%d, %d] ", x->bci(), (end == NULL ? -1 : end->printable_bci()));
1581 
1582   // print predecessors and successors
1583   if (x->number_of_preds() > 0) {
1584     tty->print("preds: ");
1585     for (int i = 0; i < x->number_of_preds(); i ++) {
1586       tty->print("B%d ", x->pred_at(i)->block_id());
1587     }
1588   }
1589 
1590   if (x->number_of_sux() > 0) {
1591     tty->print("sux: ");
1592     for (int i = 0; i < x->number_of_sux(); i ++) {
1593       tty->print("B%d ", x->sux_at(i)->block_id());
1594     }
1595   }
1596 
1597   // print exception handlers
1598   if (x->number_of_exception_handlers() > 0) {
1599     tty->print("xhandler: ");
1600     for (int i = 0; i < x->number_of_exception_handlers();  i++) {
1601       tty->print("B%d ", x->exception_handler_at(i)->block_id());
1602     }
1603   }
1604 
1605   tty->cr();
1606 }
1607 
1608 void print_LIR(BlockList* blocks) {
1609   tty->print_cr("LIR:");
1610   int i;
1611   for (i = 0; i < blocks->length(); i++) {
1612     BlockBegin* bb = blocks->at(i);
1613     print_block(bb);
1614     tty->print("__id_Instruction___________________________________________"); tty->cr();
1615     bb->lir()->print_instructions();
1616   }
1617 }
1618 
1619 void LIR_List::print_instructions() {
1620   for (int i = 0; i < _operations.length(); i++) {
1621     _operations.at(i)->print(); tty->cr();
1622   }
1623   tty->cr();
1624 }
1625 
1626 // LIR_Ops printing routines
1627 // LIR_Op
1628 void LIR_Op::print_on(outputStream* out) const {
1629   if (id() != -1 || PrintCFGToFile) {
1630     out->print("%4d ", id());
1631   } else {
1632     out->print("     ");
1633   }
1634   out->print("%s ", name());
1635   print_instr(out);
1636   if (info() != NULL) out->print(" [bci:%d]", info()->stack()->bci());
1637 #ifdef ASSERT
1638   if (Verbose && _file != NULL) {
1639     out->print(" (%s:%d)", _file, _line);
1640   }
1641 #endif
1642 }
1643 
1644 const char * LIR_Op::name() const {
1645   const char* s = NULL;
1646   switch(code()) {
1647      // LIR_Op0
1648      case lir_membar:                s = "membar";        break;
1649      case lir_membar_acquire:        s = "membar_acquire"; break;
1650      case lir_membar_release:        s = "membar_release"; break;
1651      case lir_membar_loadload:       s = "membar_loadload";   break;
1652      case lir_membar_storestore:     s = "membar_storestore"; break;
1653      case lir_membar_loadstore:      s = "membar_loadstore";  break;
1654      case lir_membar_storeload:      s = "membar_storeload";  break;
1655      case lir_word_align:            s = "word_align";    break;
1656      case lir_label:                 s = "label";         break;
1657      case lir_nop:                   s = "nop";           break;
1658      case lir_on_spin_wait:          s = "on_spin_wait";  break;
1659      case lir_backwardbranch_target: s = "backbranch";    break;
1660      case lir_std_entry:             s = "std_entry";     break;
1661      case lir_osr_entry:             s = "osr_entry";     break;
1662      case lir_build_frame:           s = "build_frm";     break;
1663      case lir_fpop_raw:              s = "fpop_raw";      break;
1664      case lir_24bit_FPU:             s = "24bit_FPU";     break;
1665      case lir_reset_FPU:             s = "reset_FPU";     break;
1666      case lir_breakpoint:            s = "breakpoint";    break;
1667      case lir_get_thread:            s = "get_thread";    break;
1668      // LIR_Op1
1669      case lir_fxch:                  s = "fxch";          break;
1670      case lir_fld:                   s = "fld";           break;
1671      case lir_ffree:                 s = "ffree";         break;
1672      case lir_push:                  s = "push";          break;
1673      case lir_pop:                   s = "pop";           break;
1674      case lir_null_check:            s = "null_check";    break;
1675      case lir_return:                s = "return";        break;
1676      case lir_safepoint:             s = "safepoint";     break;
1677      case lir_leal:                  s = "leal";          break;
1678      case lir_branch:                s = "branch";        break;
1679      case lir_cond_float_branch:     s = "flt_cond_br";   break;
1680      case lir_move:                  s = "move";          break;
1681      case lir_roundfp:               s = "roundfp";       break;
1682      case lir_rtcall:                s = "rtcall";        break;
1683      case lir_throw:                 s = "throw";         break;
1684      case lir_unwind:                s = "unwind";        break;
1685      case lir_convert:               s = "convert";       break;
1686      case lir_alloc_object:          s = "alloc_obj";     break;
1687      case lir_monaddr:               s = "mon_addr";      break;
1688      case lir_pack64:                s = "pack64";        break;
1689      case lir_unpack64:              s = "unpack64";      break;
1690      // LIR_Op2
1691      case lir_cmp:                   s = "cmp";           break;
1692      case lir_cmp_l2i:               s = "cmp_l2i";       break;
1693      case lir_ucmp_fd2i:             s = "ucomp_fd2i";    break;
1694      case lir_cmp_fd2i:              s = "comp_fd2i";     break;
1695      case lir_cmove:                 s = "cmove";         break;
1696      case lir_add:                   s = "add";           break;
1697      case lir_sub:                   s = "sub";           break;
1698      case lir_mul:                   s = "mul";           break;
1699      case lir_mul_strictfp:          s = "mul_strictfp";  break;
1700      case lir_div:                   s = "div";           break;
1701      case lir_div_strictfp:          s = "div_strictfp";  break;
1702      case lir_rem:                   s = "rem";           break;
1703      case lir_abs:                   s = "abs";           break;
1704      case lir_neg:                   s = "neg";           break;
1705      case lir_sqrt:                  s = "sqrt";          break;
1706      case lir_logic_and:             s = "logic_and";     break;
1707      case lir_logic_or:              s = "logic_or";      break;
1708      case lir_logic_xor:             s = "logic_xor";     break;
1709      case lir_shl:                   s = "shift_left";    break;
1710      case lir_shr:                   s = "shift_right";   break;
1711      case lir_ushr:                  s = "ushift_right";  break;
1712      case lir_alloc_array:           s = "alloc_array";   break;
1713      case lir_xadd:                  s = "xadd";          break;
1714      case lir_xchg:                  s = "xchg";          break;
1715      // LIR_Op3
1716      case lir_idiv:                  s = "idiv";          break;
1717      case lir_irem:                  s = "irem";          break;
1718      case lir_fmad:                  s = "fmad";          break;
1719      case lir_fmaf:                  s = "fmaf";          break;
1720      // LIR_OpJavaCall
1721      case lir_static_call:           s = "static";        break;
1722      case lir_optvirtual_call:       s = "optvirtual";    break;
1723      case lir_icvirtual_call:        s = "icvirtual";     break;
1724      case lir_virtual_call:          s = "virtual";       break;
1725      case lir_dynamic_call:          s = "dynamic";       break;
1726      // LIR_OpArrayCopy
1727      case lir_arraycopy:             s = "arraycopy";     break;
1728      // LIR_OpUpdateCRC32
1729      case lir_updatecrc32:           s = "updatecrc32";   break;
1730      // LIR_OpLock
1731      case lir_lock:                  s = "lock";          break;
1732      case lir_unlock:                s = "unlock";        break;
1733      // LIR_OpDelay
1734      case lir_delay_slot:            s = "delay";         break;
1735      // LIR_OpTypeCheck
1736      case lir_instanceof:            s = "instanceof";    break;
1737      case lir_checkcast:             s = "checkcast";     break;
1738      case lir_store_check:           s = "store_check";   break;
1739      // LIR_OpCompareAndSwap
1740      case lir_cas_long:              s = "cas_long";      break;
1741      case lir_cas_obj:               s = "cas_obj";      break;
1742      case lir_cas_int:               s = "cas_int";      break;
1743      // LIR_OpProfileCall
1744      case lir_profile_call:          s = "profile_call";  break;
1745      // LIR_OpProfileType
1746      case lir_profile_type:          s = "profile_type";  break;
1747      // LIR_OpAssert
1748 #ifdef ASSERT
1749      case lir_assert:                s = "assert";        break;
1750 #endif
1751      case lir_none:                  ShouldNotReachHere();break;
1752     default:                         s = "illegal_op";    break;
1753   }
1754   return s;
1755 }
1756 
1757 // LIR_OpJavaCall
1758 void LIR_OpJavaCall::print_instr(outputStream* out) const {
1759   out->print("call: ");
1760   out->print("[addr: " INTPTR_FORMAT "]", p2i(address()));
1761   if (receiver()->is_valid()) {
1762     out->print(" [recv: ");   receiver()->print(out);   out->print("]");
1763   }
1764   if (result_opr()->is_valid()) {
1765     out->print(" [result: "); result_opr()->print(out); out->print("]");
1766   }
1767 }
1768 
1769 // LIR_OpLabel
1770 void LIR_OpLabel::print_instr(outputStream* out) const {
1771   out->print("[label:" INTPTR_FORMAT "]", p2i(_label));
1772 }
1773 
1774 // LIR_OpArrayCopy
1775 void LIR_OpArrayCopy::print_instr(outputStream* out) const {
1776   src()->print(out);     out->print(" ");
1777   src_pos()->print(out); out->print(" ");
1778   dst()->print(out);     out->print(" ");
1779   dst_pos()->print(out); out->print(" ");
1780   length()->print(out);  out->print(" ");
1781   tmp()->print(out);     out->print(" ");
1782 }
1783 
1784 // LIR_OpUpdateCRC32
1785 void LIR_OpUpdateCRC32::print_instr(outputStream* out) const {
1786   crc()->print(out);     out->print(" ");
1787   val()->print(out);     out->print(" ");
1788   result_opr()->print(out); out->print(" ");
1789 }
1790 
1791 // LIR_OpCompareAndSwap
1792 void LIR_OpCompareAndSwap::print_instr(outputStream* out) const {
1793   addr()->print(out);      out->print(" ");
1794   cmp_value()->print(out); out->print(" ");
1795   new_value()->print(out); out->print(" ");
1796   tmp1()->print(out);      out->print(" ");
1797   tmp2()->print(out);      out->print(" ");
1798 
1799 }
1800 
1801 // LIR_Op0
1802 void LIR_Op0::print_instr(outputStream* out) const {
1803   result_opr()->print(out);
1804 }
1805 
1806 // LIR_Op1
1807 const char * LIR_Op1::name() const {
1808   if (code() == lir_move) {
1809     switch (move_kind()) {
1810     case lir_move_normal:
1811       return "move";
1812     case lir_move_unaligned:
1813       return "unaligned move";
1814     case lir_move_volatile:
1815       return "volatile_move";
1816     case lir_move_wide:
1817       return "wide_move";
1818     default:
1819       ShouldNotReachHere();
1820     return "illegal_op";
1821     }
1822   } else {
1823     return LIR_Op::name();
1824   }
1825 }
1826 
1827 
1828 void LIR_Op1::print_instr(outputStream* out) const {
1829   _opr->print(out);         out->print(" ");
1830   result_opr()->print(out); out->print(" ");
1831   print_patch_code(out, patch_code());
1832 }
1833 
1834 
1835 // LIR_Op1
1836 void LIR_OpRTCall::print_instr(outputStream* out) const {
1837   intx a = (intx)addr();
1838   out->print("%s", Runtime1::name_for_address(addr()));
1839   out->print(" ");
1840   tmp()->print(out);
1841 }
1842 
1843 void LIR_Op1::print_patch_code(outputStream* out, LIR_PatchCode code) {
1844   switch(code) {
1845     case lir_patch_none:                                 break;
1846     case lir_patch_low:    out->print("[patch_low]");    break;
1847     case lir_patch_high:   out->print("[patch_high]");   break;
1848     case lir_patch_normal: out->print("[patch_normal]"); break;
1849     default: ShouldNotReachHere();
1850   }
1851 }
1852 
1853 // LIR_OpBranch
1854 void LIR_OpBranch::print_instr(outputStream* out) const {
1855   print_condition(out, cond());             out->print(" ");
1856   if (block() != NULL) {
1857     out->print("[B%d] ", block()->block_id());
1858   } else if (stub() != NULL) {
1859     out->print("[");
1860     stub()->print_name(out);
1861     out->print(": " INTPTR_FORMAT "]", p2i(stub()));
1862     if (stub()->info() != NULL) out->print(" [bci:%d]", stub()->info()->stack()->bci());
1863   } else {
1864     out->print("[label:" INTPTR_FORMAT "] ", p2i(label()));
1865   }
1866   if (ublock() != NULL) {
1867     out->print("unordered: [B%d] ", ublock()->block_id());
1868   }
1869 }
1870 
1871 void LIR_Op::print_condition(outputStream* out, LIR_Condition cond) {
1872   switch(cond) {
1873     case lir_cond_equal:           out->print("[EQ]");      break;
1874     case lir_cond_notEqual:        out->print("[NE]");      break;
1875     case lir_cond_less:            out->print("[LT]");      break;
1876     case lir_cond_lessEqual:       out->print("[LE]");      break;
1877     case lir_cond_greaterEqual:    out->print("[GE]");      break;
1878     case lir_cond_greater:         out->print("[GT]");      break;
1879     case lir_cond_belowEqual:      out->print("[BE]");      break;
1880     case lir_cond_aboveEqual:      out->print("[AE]");      break;
1881     case lir_cond_always:          out->print("[AL]");      break;
1882     default:                       out->print("[%d]",cond); break;
1883   }
1884 }
1885 
1886 // LIR_OpConvert
1887 void LIR_OpConvert::print_instr(outputStream* out) const {
1888   print_bytecode(out, bytecode());
1889   in_opr()->print(out);                  out->print(" ");
1890   result_opr()->print(out);              out->print(" ");
1891 #ifdef PPC32
1892   if(tmp1()->is_valid()) {
1893     tmp1()->print(out); out->print(" ");
1894     tmp2()->print(out); out->print(" ");
1895   }
1896 #endif
1897 }
1898 
1899 void LIR_OpConvert::print_bytecode(outputStream* out, Bytecodes::Code code) {
1900   switch(code) {
1901     case Bytecodes::_d2f: out->print("[d2f] "); break;
1902     case Bytecodes::_d2i: out->print("[d2i] "); break;
1903     case Bytecodes::_d2l: out->print("[d2l] "); break;
1904     case Bytecodes::_f2d: out->print("[f2d] "); break;
1905     case Bytecodes::_f2i: out->print("[f2i] "); break;
1906     case Bytecodes::_f2l: out->print("[f2l] "); break;
1907     case Bytecodes::_i2b: out->print("[i2b] "); break;
1908     case Bytecodes::_i2c: out->print("[i2c] "); break;
1909     case Bytecodes::_i2d: out->print("[i2d] "); break;
1910     case Bytecodes::_i2f: out->print("[i2f] "); break;
1911     case Bytecodes::_i2l: out->print("[i2l] "); break;
1912     case Bytecodes::_i2s: out->print("[i2s] "); break;
1913     case Bytecodes::_l2i: out->print("[l2i] "); break;
1914     case Bytecodes::_l2f: out->print("[l2f] "); break;
1915     case Bytecodes::_l2d: out->print("[l2d] "); break;
1916     default:
1917       out->print("[?%d]",code);
1918     break;
1919   }
1920 }
1921 
1922 void LIR_OpAllocObj::print_instr(outputStream* out) const {
1923   klass()->print(out);                      out->print(" ");
1924   obj()->print(out);                        out->print(" ");
1925   tmp1()->print(out);                       out->print(" ");
1926   tmp2()->print(out);                       out->print(" ");
1927   tmp3()->print(out);                       out->print(" ");
1928   tmp4()->print(out);                       out->print(" ");
1929   out->print("[hdr:%d]", header_size()); out->print(" ");
1930   out->print("[obj:%d]", object_size()); out->print(" ");
1931   out->print("[lbl:" INTPTR_FORMAT "]", p2i(stub()->entry()));
1932 }
1933 
1934 void LIR_OpRoundFP::print_instr(outputStream* out) const {
1935   _opr->print(out);         out->print(" ");
1936   tmp()->print(out);        out->print(" ");
1937   result_opr()->print(out); out->print(" ");
1938 }
1939 
1940 // LIR_Op2
1941 void LIR_Op2::print_instr(outputStream* out) const {
1942   if (code() == lir_cmove || code() == lir_cmp) {
1943     print_condition(out, condition());         out->print(" ");
1944   }
1945   in_opr1()->print(out);    out->print(" ");
1946   in_opr2()->print(out);    out->print(" ");
1947   if (tmp1_opr()->is_valid()) { tmp1_opr()->print(out);    out->print(" "); }
1948   if (tmp2_opr()->is_valid()) { tmp2_opr()->print(out);    out->print(" "); }
1949   if (tmp3_opr()->is_valid()) { tmp3_opr()->print(out);    out->print(" "); }
1950   if (tmp4_opr()->is_valid()) { tmp4_opr()->print(out);    out->print(" "); }
1951   if (tmp5_opr()->is_valid()) { tmp5_opr()->print(out);    out->print(" "); }
1952   result_opr()->print(out);
1953 }
1954 
1955 void LIR_OpAllocArray::print_instr(outputStream* out) const {
1956   klass()->print(out);                   out->print(" ");
1957   len()->print(out);                     out->print(" ");
1958   obj()->print(out);                     out->print(" ");
1959   tmp1()->print(out);                    out->print(" ");
1960   tmp2()->print(out);                    out->print(" ");
1961   tmp3()->print(out);                    out->print(" ");
1962   tmp4()->print(out);                    out->print(" ");
1963   out->print("[type:0x%x]", type());     out->print(" ");
1964   out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry()));
1965 }
1966 
1967 
1968 void LIR_OpTypeCheck::print_instr(outputStream* out) const {
1969   object()->print(out);                  out->print(" ");
1970   if (code() == lir_store_check) {
1971     array()->print(out);                 out->print(" ");
1972   }
1973   if (code() != lir_store_check) {
1974     klass()->print_name_on(out);         out->print(" ");
1975     if (fast_check())                 out->print("fast_check ");
1976   }
1977   tmp1()->print(out);                    out->print(" ");
1978   tmp2()->print(out);                    out->print(" ");
1979   tmp3()->print(out);                    out->print(" ");
1980   result_opr()->print(out);              out->print(" ");
1981   if (info_for_exception() != NULL) out->print(" [bci:%d]", info_for_exception()->stack()->bci());
1982 }
1983 
1984 
1985 // LIR_Op3
1986 void LIR_Op3::print_instr(outputStream* out) const {
1987   in_opr1()->print(out);    out->print(" ");
1988   in_opr2()->print(out);    out->print(" ");
1989   in_opr3()->print(out);    out->print(" ");
1990   result_opr()->print(out);
1991 }
1992 
1993 
1994 void LIR_OpLock::print_instr(outputStream* out) const {
1995   hdr_opr()->print(out);   out->print(" ");
1996   obj_opr()->print(out);   out->print(" ");
1997   lock_opr()->print(out);  out->print(" ");
1998   if (_scratch->is_valid()) {
1999     _scratch->print(out);  out->print(" ");
2000   }
2001   out->print("[lbl:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2002 }
2003 
2004 #ifdef ASSERT
2005 void LIR_OpAssert::print_instr(outputStream* out) const {
2006   print_condition(out, condition()); out->print(" ");
2007   in_opr1()->print(out);             out->print(" ");
2008   in_opr2()->print(out);             out->print(", \"");
2009   out->print("%s", msg());          out->print("\"");
2010 }
2011 #endif
2012 
2013 
2014 void LIR_OpDelay::print_instr(outputStream* out) const {
2015   _op->print_on(out);
2016 }
2017 
2018 
2019 // LIR_OpProfileCall
2020 void LIR_OpProfileCall::print_instr(outputStream* out) const {
2021   profiled_method()->name()->print_symbol_on(out);
2022   out->print(".");
2023   profiled_method()->holder()->name()->print_symbol_on(out);
2024   out->print(" @ %d ", profiled_bci());
2025   mdo()->print(out);           out->print(" ");
2026   recv()->print(out);          out->print(" ");
2027   tmp1()->print(out);          out->print(" ");
2028 }
2029 
2030 // LIR_OpProfileType
2031 void LIR_OpProfileType::print_instr(outputStream* out) const {
2032   out->print("exact = ");
2033   if  (exact_klass() == NULL) {
2034     out->print("unknown");
2035   } else {
2036     exact_klass()->print_name_on(out);
2037   }
2038   out->print(" current = "); ciTypeEntries::print_ciklass(out, current_klass());
2039   out->print(" ");
2040   mdp()->print(out);          out->print(" ");
2041   obj()->print(out);          out->print(" ");
2042   tmp()->print(out);          out->print(" ");
2043 }
2044 
2045 #endif // PRODUCT
2046 
2047 // Implementation of LIR_InsertionBuffer
2048 
2049 void LIR_InsertionBuffer::append(int index, LIR_Op* op) {
2050   assert(_index_and_count.length() % 2 == 0, "must have a count for each index");
2051 
2052   int i = number_of_insertion_points() - 1;
2053   if (i < 0 || index_at(i) < index) {
2054     append_new(index, 1);
2055   } else {
2056     assert(index_at(i) == index, "can append LIR_Ops in ascending order only");
2057     assert(count_at(i) > 0, "check");
2058     set_count_at(i, count_at(i) + 1);
2059   }
2060   _ops.push(op);
2061 
2062   DEBUG_ONLY(verify());
2063 }
2064 
2065 #ifdef ASSERT
2066 void LIR_InsertionBuffer::verify() {
2067   int sum = 0;
2068   int prev_idx = -1;
2069 
2070   for (int i = 0; i < number_of_insertion_points(); i++) {
2071     assert(prev_idx < index_at(i), "index must be ordered ascending");
2072     sum += count_at(i);
2073   }
2074   assert(sum == number_of_ops(), "wrong total sum");
2075 }
2076 #endif