1 /*
   2  * Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #include "precompiled.hpp"
  26 #include "c1/c1_InstructionPrinter.hpp"
  27 #include "c1/c1_LIR.hpp"
  28 #include "c1/c1_LIRAssembler.hpp"
  29 #include "c1/c1_ValueStack.hpp"
  30 #include "ci/ciInstance.hpp"
  31 #include "runtime/sharedRuntime.hpp"
  32 
  33 Register LIR_OprDesc::as_register() const {
  34   return FrameMap::cpu_rnr2reg(cpu_regnr());
  35 }
  36 
  37 Register LIR_OprDesc::as_register_lo() const {
  38   return FrameMap::cpu_rnr2reg(cpu_regnrLo());
  39 }
  40 
  41 Register LIR_OprDesc::as_register_hi() const {
  42   return FrameMap::cpu_rnr2reg(cpu_regnrHi());
  43 }
  44 
  45 LIR_Opr LIR_OprFact::illegalOpr = LIR_OprFact::illegal();
  46 
  47 LIR_Opr LIR_OprFact::value_type(ValueType* type) {
  48   ValueTag tag = type->tag();
  49   switch (tag) {
  50   case metaDataTag : {
  51     ClassConstant* c = type->as_ClassConstant();
  52     if (c != NULL && !c->value()->is_loaded()) {
  53       return LIR_OprFact::metadataConst(NULL);
  54     } else if (c != NULL) {
  55       return LIR_OprFact::metadataConst(c->value()->constant_encoding());
  56     } else {
  57       MethodConstant* m = type->as_MethodConstant();
  58       assert (m != NULL, "not a class or a method?");
  59       return LIR_OprFact::metadataConst(m->value()->constant_encoding());
  60     }
  61   }
  62   case objectTag : {
  63       return LIR_OprFact::oopConst(type->as_ObjectType()->encoding());
  64     }
  65   case addressTag: return LIR_OprFact::addressConst(type->as_AddressConstant()->value());
  66   case intTag    : return LIR_OprFact::intConst(type->as_IntConstant()->value());
  67   case floatTag  : return LIR_OprFact::floatConst(type->as_FloatConstant()->value());
  68   case longTag   : return LIR_OprFact::longConst(type->as_LongConstant()->value());
  69   case doubleTag : return LIR_OprFact::doubleConst(type->as_DoubleConstant()->value());
  70   default: ShouldNotReachHere(); return LIR_OprFact::intConst(-1);
  71   }
  72 }
  73 
  74 
  75 LIR_Opr LIR_OprFact::dummy_value_type(ValueType* type) {
  76   switch (type->tag()) {
  77     case objectTag: return LIR_OprFact::oopConst(NULL);
  78     case addressTag:return LIR_OprFact::addressConst(0);
  79     case intTag:    return LIR_OprFact::intConst(0);
  80     case floatTag:  return LIR_OprFact::floatConst(0.0);
  81     case longTag:   return LIR_OprFact::longConst(0);
  82     case doubleTag: return LIR_OprFact::doubleConst(0.0);
  83     default:        ShouldNotReachHere(); return LIR_OprFact::intConst(-1);
  84   }
  85   return illegalOpr;
  86 }
  87 
  88 
  89 
  90 //---------------------------------------------------
  91 
  92 
  93 LIR_Address::Scale LIR_Address::scale(BasicType type) {
  94   int elem_size = type2aelembytes(type);
  95   switch (elem_size) {
  96   case 1: return LIR_Address::times_1;
  97   case 2: return LIR_Address::times_2;
  98   case 4: return LIR_Address::times_4;
  99   case 8: return LIR_Address::times_8;
 100   }
 101   ShouldNotReachHere();
 102   return LIR_Address::times_1;
 103 }
 104 
 105 //---------------------------------------------------
 106 
 107 char LIR_OprDesc::type_char(BasicType t) {
 108   switch (t) {
 109     case T_ARRAY:
 110       t = T_OBJECT;
 111     case T_BOOLEAN:
 112     case T_CHAR:
 113     case T_FLOAT:
 114     case T_DOUBLE:
 115     case T_BYTE:
 116     case T_SHORT:
 117     case T_INT:
 118     case T_LONG:
 119     case T_OBJECT:
 120     case T_ADDRESS:
 121     case T_VOID:
 122       return ::type2char(t);
 123     case T_METADATA:
 124       return 'M';
 125     case T_ILLEGAL:
 126       return '?';
 127 
 128     default:
 129       ShouldNotReachHere();
 130       return '?';
 131   }
 132 }
 133 
 134 #ifndef PRODUCT
 135 void LIR_OprDesc::validate_type() const {
 136 
 137 #ifdef ASSERT
 138   if (!is_pointer() && !is_illegal()) {
 139     OprKind kindfield = kind_field(); // Factored out because of compiler bug, see 8002160
 140     switch (as_BasicType(type_field())) {
 141     case T_LONG:
 142       assert((kindfield == cpu_register || kindfield == stack_value) &&
 143              size_field() == double_size, "must match");
 144       break;
 145     case T_FLOAT:
 146       // FP return values can be also in CPU registers on ARM and PPC32 (softfp ABI)
 147       assert((kindfield == fpu_register || kindfield == stack_value
 148              ARM_ONLY(|| kindfield == cpu_register)
 149              PPC32_ONLY(|| kindfield == cpu_register) ) &&
 150              size_field() == single_size, "must match");
 151       break;
 152     case T_DOUBLE:
 153       // FP return values can be also in CPU registers on ARM and PPC32 (softfp ABI)
 154       assert((kindfield == fpu_register || kindfield == stack_value
 155              ARM_ONLY(|| kindfield == cpu_register)
 156              PPC32_ONLY(|| kindfield == cpu_register) ) &&
 157              size_field() == double_size, "must match");
 158       break;
 159     case T_BOOLEAN:
 160     case T_CHAR:
 161     case T_BYTE:
 162     case T_SHORT:
 163     case T_INT:
 164     case T_ADDRESS:
 165     case T_OBJECT:
 166     case T_METADATA:
 167     case T_ARRAY:
 168       assert((kindfield == cpu_register || kindfield == stack_value) &&
 169              size_field() == single_size, "must match");
 170       break;
 171 
 172     case T_ILLEGAL:
 173       // XXX TKR also means unknown right now
 174       // assert(is_illegal(), "must match");
 175       break;
 176 
 177     default:
 178       ShouldNotReachHere();
 179     }
 180   }
 181 #endif
 182 
 183 }
 184 #endif // PRODUCT
 185 
 186 
 187 bool LIR_OprDesc::is_oop() const {
 188   if (is_pointer()) {
 189     return pointer()->is_oop_pointer();
 190   } else {
 191     OprType t= type_field();
 192     assert(t != unknown_type, "not set");
 193     return t == object_type;
 194   }
 195 }
 196 
 197 
 198 
 199 void LIR_Op2::verify() const {
 200 #ifdef ASSERT
 201   switch (code()) {
 202     case lir_cmove:
 203     case lir_xchg:
 204       break;
 205 
 206     default:
 207       assert(!result_opr()->is_register() || !result_opr()->is_oop_register(),
 208              "can't produce oops from arith");
 209   }
 210 
 211   if (TwoOperandLIRForm) {
 212 
 213 #ifdef ASSERT
 214     bool threeOperandForm = false;
 215 #ifdef S390
 216     // There are 3 operand shifts on S390 (see LIR_Assembler::shift_op()).
 217     threeOperandForm =
 218       code() == lir_shl ||
 219       ((code() == lir_shr || code() == lir_ushr) && (result_opr()->is_double_cpu() || in_opr1()->type() == T_OBJECT));
 220 #endif
 221 #endif
 222 
 223     switch (code()) {
 224     case lir_add:
 225     case lir_sub:
 226     case lir_mul:
 227     case lir_mul_strictfp:
 228     case lir_div:
 229     case lir_div_strictfp:
 230     case lir_rem:
 231     case lir_logic_and:
 232     case lir_logic_or:
 233     case lir_logic_xor:
 234     case lir_shl:
 235     case lir_shr:
 236       assert(in_opr1() == result_opr() || threeOperandForm, "opr1 and result must match");
 237       assert(in_opr1()->is_valid() && in_opr2()->is_valid(), "must be valid");
 238       break;
 239 
 240     // special handling for lir_ushr because of write barriers
 241     case lir_ushr:
 242       assert(in_opr1() == result_opr() || in_opr2()->is_constant() || threeOperandForm, "opr1 and result must match or shift count is constant");
 243       assert(in_opr1()->is_valid() && in_opr2()->is_valid(), "must be valid");
 244       break;
 245 
 246     default:
 247       break;
 248     }
 249   }
 250 #endif
 251 }
 252 
 253 
 254 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, BasicType type, BlockBegin* block)
 255   : LIR_Op(lir_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*)NULL)
 256   , _cond(cond)
 257   , _type(type)
 258   , _label(block->label())
 259   , _block(block)
 260   , _ublock(NULL)
 261   , _stub(NULL) {
 262 }
 263 
 264 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, BasicType type, CodeStub* stub) :
 265   LIR_Op(lir_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*)NULL)
 266   , _cond(cond)
 267   , _type(type)
 268   , _label(stub->entry())
 269   , _block(NULL)
 270   , _ublock(NULL)
 271   , _stub(stub) {
 272 }
 273 
 274 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, BasicType type, BlockBegin* block, BlockBegin* ublock)
 275   : LIR_Op(lir_cond_float_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*)NULL)
 276   , _cond(cond)
 277   , _type(type)
 278   , _label(block->label())
 279   , _block(block)
 280   , _ublock(ublock)
 281   , _stub(NULL)
 282 {
 283 }
 284 
 285 void LIR_OpBranch::change_block(BlockBegin* b) {
 286   assert(_block != NULL, "must have old block");
 287   assert(_block->label() == label(), "must be equal");
 288 
 289   _block = b;
 290   _label = b->label();
 291 }
 292 
 293 void LIR_OpBranch::change_ublock(BlockBegin* b) {
 294   assert(_ublock != NULL, "must have old block");
 295   _ublock = b;
 296 }
 297 
 298 void LIR_OpBranch::negate_cond() {
 299   switch (_cond) {
 300     case lir_cond_equal:        _cond = lir_cond_notEqual;     break;
 301     case lir_cond_notEqual:     _cond = lir_cond_equal;        break;
 302     case lir_cond_less:         _cond = lir_cond_greaterEqual; break;
 303     case lir_cond_lessEqual:    _cond = lir_cond_greater;      break;
 304     case lir_cond_greaterEqual: _cond = lir_cond_less;         break;
 305     case lir_cond_greater:      _cond = lir_cond_lessEqual;    break;
 306     default: ShouldNotReachHere();
 307   }
 308 }
 309 
 310 
 311 LIR_OpTypeCheck::LIR_OpTypeCheck(LIR_Code code, LIR_Opr result, LIR_Opr object, ciKlass* klass,
 312                                  LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3,
 313                                  bool fast_check, CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch,
 314                                  CodeStub* stub)
 315 
 316   : LIR_Op(code, result, NULL)
 317   , _object(object)
 318   , _array(LIR_OprFact::illegalOpr)
 319   , _klass(klass)
 320   , _tmp1(tmp1)
 321   , _tmp2(tmp2)
 322   , _tmp3(tmp3)
 323   , _fast_check(fast_check)
 324   , _stub(stub)
 325   , _info_for_patch(info_for_patch)
 326   , _info_for_exception(info_for_exception)
 327   , _profiled_method(NULL)
 328   , _profiled_bci(-1)
 329   , _should_profile(false)
 330 {
 331   if (code == lir_checkcast) {
 332     assert(info_for_exception != NULL, "checkcast throws exceptions");
 333   } else if (code == lir_instanceof) {
 334     assert(info_for_exception == NULL, "instanceof throws no exceptions");
 335   } else {
 336     ShouldNotReachHere();
 337   }
 338 }
 339 
 340 
 341 
 342 LIR_OpTypeCheck::LIR_OpTypeCheck(LIR_Code code, LIR_Opr object, LIR_Opr array, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, CodeEmitInfo* info_for_exception)
 343   : LIR_Op(code, LIR_OprFact::illegalOpr, NULL)
 344   , _object(object)
 345   , _array(array)
 346   , _klass(NULL)
 347   , _tmp1(tmp1)
 348   , _tmp2(tmp2)
 349   , _tmp3(tmp3)
 350   , _fast_check(false)
 351   , _stub(NULL)
 352   , _info_for_patch(NULL)
 353   , _info_for_exception(info_for_exception)
 354   , _profiled_method(NULL)
 355   , _profiled_bci(-1)
 356   , _should_profile(false)
 357 {
 358   if (code == lir_store_check) {
 359     _stub = new ArrayStoreExceptionStub(object, info_for_exception);
 360     assert(info_for_exception != NULL, "store_check throws exceptions");
 361   } else {
 362     ShouldNotReachHere();
 363   }
 364 }
 365 
 366 
 367 LIR_OpArrayCopy::LIR_OpArrayCopy(LIR_Opr src, LIR_Opr src_pos, LIR_Opr dst, LIR_Opr dst_pos, LIR_Opr length,
 368                                  LIR_Opr tmp, ciArrayKlass* expected_type, int flags, CodeEmitInfo* info)
 369   : LIR_Op(lir_arraycopy, LIR_OprFact::illegalOpr, info)
 370   , _tmp(tmp)
 371   , _src(src)
 372   , _src_pos(src_pos)
 373   , _dst(dst)
 374   , _dst_pos(dst_pos)
 375   , _flags(flags)
 376   , _expected_type(expected_type)
 377   , _length(length) {
 378   _stub = new ArrayCopyStub(this);
 379 }
 380 
 381 LIR_OpUpdateCRC32::LIR_OpUpdateCRC32(LIR_Opr crc, LIR_Opr val, LIR_Opr res)
 382   : LIR_Op(lir_updatecrc32, res, NULL)
 383   , _crc(crc)
 384   , _val(val) {
 385 }
 386 
 387 //-------------------verify--------------------------
 388 
 389 void LIR_Op1::verify() const {
 390   switch(code()) {
 391   case lir_move:
 392     assert(in_opr()->is_valid() && result_opr()->is_valid(), "must be");
 393     break;
 394   case lir_null_check:
 395     assert(in_opr()->is_register(), "must be");
 396     break;
 397   case lir_return:
 398     assert(in_opr()->is_register() || in_opr()->is_illegal(), "must be");
 399     break;
 400   default:
 401     break;
 402   }
 403 }
 404 
 405 void LIR_OpRTCall::verify() const {
 406   assert(strcmp(Runtime1::name_for_address(addr()), "<unknown function>") != 0, "unknown function");
 407 }
 408 
 409 //-------------------visits--------------------------
 410 
 411 // complete rework of LIR instruction visitor.
 412 // The virtual call for each instruction type is replaced by a big
 413 // switch that adds the operands for each instruction
 414 
 415 void LIR_OpVisitState::visit(LIR_Op* op) {
 416   // copy information from the LIR_Op
 417   reset();
 418   set_op(op);
 419 
 420   switch (op->code()) {
 421 
 422 // LIR_Op0
 423     case lir_word_align:               // result and info always invalid
 424     case lir_backwardbranch_target:    // result and info always invalid
 425     case lir_build_frame:              // result and info always invalid
 426     case lir_fpop_raw:                 // result and info always invalid
 427     case lir_24bit_FPU:                // result and info always invalid
 428     case lir_reset_FPU:                // result and info always invalid
 429     case lir_breakpoint:               // result and info always invalid
 430     case lir_membar:                   // result and info always invalid
 431     case lir_membar_acquire:           // result and info always invalid
 432     case lir_membar_release:           // result and info always invalid
 433     case lir_membar_loadload:          // result and info always invalid
 434     case lir_membar_storestore:        // result and info always invalid
 435     case lir_membar_loadstore:         // result and info always invalid
 436     case lir_membar_storeload:         // result and info always invalid
 437     case lir_on_spin_wait:
 438     {
 439       assert(op->as_Op0() != NULL, "must be");
 440       assert(op->_info == NULL, "info not used by this instruction");
 441       assert(op->_result->is_illegal(), "not used");
 442       break;
 443     }
 444 
 445     case lir_nop:                      // may have info, result always invalid
 446     case lir_std_entry:                // may have result, info always invalid
 447     case lir_osr_entry:                // may have result, info always invalid
 448     case lir_get_thread:               // may have result, info always invalid
 449     {
 450       assert(op->as_Op0() != NULL, "must be");
 451       if (op->_info != NULL)           do_info(op->_info);
 452       if (op->_result->is_valid())     do_output(op->_result);
 453       break;
 454     }
 455 
 456     case lir_getfp:          // result always valid
 457     case lir_getsp:          // result always valid
 458     {
 459       assert(op->as_Op0() != NULL, "must be");
 460       if (op->_info)                  do_info(op->_info);
 461       if (op->_result->is_valid())    do_output(op->_result);
 462       break;
 463     }
 464 
 465 
 466 
 467 // LIR_OpLabel
 468     case lir_label:                    // result and info always invalid
 469     {
 470       assert(op->as_OpLabel() != NULL, "must be");
 471       assert(op->_info == NULL, "info not used by this instruction");
 472       assert(op->_result->is_illegal(), "not used");
 473       break;
 474     }
 475 
 476 
 477 // LIR_Op1
 478     case lir_fxch:           // input always valid, result and info always invalid
 479     case lir_fld:            // input always valid, result and info always invalid
 480     case lir_ffree:          // input always valid, result and info always invalid
 481     case lir_push:           // input always valid, result and info always invalid
 482     case lir_pop:            // input always valid, result and info always invalid
 483     case lir_return:         // input always valid, result and info always invalid
 484     case lir_leal:           // input and result always valid, info always invalid
 485     case lir_neg:            // input and result always valid, info always invalid
 486     case lir_monaddr:        // input and result always valid, info always invalid
 487     case lir_null_check:     // input and info always valid, result always invalid
 488     case lir_move:           // input and result always valid, may have info
 489     case lir_pack64:         // input and result always valid
 490     case lir_unpack64:       // input and result always valid
 491     {
 492       assert(op->as_Op1() != NULL, "must be");
 493       LIR_Op1* op1 = (LIR_Op1*)op;
 494 
 495       if (op1->_info)                  do_info(op1->_info);
 496       if (op1->_opr->is_valid())       do_input(op1->_opr);
 497       if (op1->_result->is_valid())    do_output(op1->_result);
 498 
 499       break;
 500     }
 501 
 502     case lir_safepoint:
 503     {
 504       assert(op->as_Op1() != NULL, "must be");
 505       LIR_Op1* op1 = (LIR_Op1*)op;
 506 
 507       assert(op1->_info != NULL, "");  do_info(op1->_info);
 508       if (op1->_opr->is_valid())       do_temp(op1->_opr); // safepoints on SPARC need temporary register
 509       assert(op1->_result->is_illegal(), "safepoint does not produce value");
 510 
 511       break;
 512     }
 513 
 514 // LIR_OpConvert;
 515     case lir_convert:        // input and result always valid, info always invalid
 516     {
 517       assert(op->as_OpConvert() != NULL, "must be");
 518       LIR_OpConvert* opConvert = (LIR_OpConvert*)op;
 519 
 520       assert(opConvert->_info == NULL, "must be");
 521       if (opConvert->_opr->is_valid())       do_input(opConvert->_opr);
 522       if (opConvert->_result->is_valid())    do_output(opConvert->_result);
 523 #ifdef PPC32
 524       if (opConvert->_tmp1->is_valid())      do_temp(opConvert->_tmp1);
 525       if (opConvert->_tmp2->is_valid())      do_temp(opConvert->_tmp2);
 526 #endif
 527       do_stub(opConvert->_stub);
 528 
 529       break;
 530     }
 531 
 532 // LIR_OpBranch;
 533     case lir_branch:                   // may have info, input and result register always invalid
 534     case lir_cond_float_branch:        // may have info, input and result register always invalid
 535     {
 536       assert(op->as_OpBranch() != NULL, "must be");
 537       LIR_OpBranch* opBranch = (LIR_OpBranch*)op;
 538 
 539       if (opBranch->_info != NULL)     do_info(opBranch->_info);
 540       assert(opBranch->_result->is_illegal(), "not used");
 541       if (opBranch->_stub != NULL)     opBranch->stub()->visit(this);
 542 
 543       break;
 544     }
 545 
 546 
 547 // LIR_OpAllocObj
 548     case lir_alloc_object:
 549     {
 550       assert(op->as_OpAllocObj() != NULL, "must be");
 551       LIR_OpAllocObj* opAllocObj = (LIR_OpAllocObj*)op;
 552 
 553       if (opAllocObj->_info)                     do_info(opAllocObj->_info);
 554       if (opAllocObj->_opr->is_valid()) {        do_input(opAllocObj->_opr);
 555                                                  do_temp(opAllocObj->_opr);
 556                                         }
 557       if (opAllocObj->_tmp1->is_valid())         do_temp(opAllocObj->_tmp1);
 558       if (opAllocObj->_tmp2->is_valid())         do_temp(opAllocObj->_tmp2);
 559       if (opAllocObj->_tmp3->is_valid())         do_temp(opAllocObj->_tmp3);
 560       if (opAllocObj->_tmp4->is_valid())         do_temp(opAllocObj->_tmp4);
 561       if (opAllocObj->_result->is_valid())       do_output(opAllocObj->_result);
 562                                                  do_stub(opAllocObj->_stub);
 563       break;
 564     }
 565 
 566 
 567 // LIR_OpRoundFP;
 568     case lir_roundfp: {
 569       assert(op->as_OpRoundFP() != NULL, "must be");
 570       LIR_OpRoundFP* opRoundFP = (LIR_OpRoundFP*)op;
 571 
 572       assert(op->_info == NULL, "info not used by this instruction");
 573       assert(opRoundFP->_tmp->is_illegal(), "not used");
 574       do_input(opRoundFP->_opr);
 575       do_output(opRoundFP->_result);
 576 
 577       break;
 578     }
 579 
 580 
 581 // LIR_Op2
 582     case lir_cmp:
 583     case lir_cmp_l2i:
 584     case lir_ucmp_fd2i:
 585     case lir_cmp_fd2i:
 586     case lir_add:
 587     case lir_sub:
 588     case lir_mul:
 589     case lir_div:
 590     case lir_rem:
 591     case lir_sqrt:
 592     case lir_abs:
 593     case lir_logic_and:
 594     case lir_logic_or:
 595     case lir_logic_xor:
 596     case lir_shl:
 597     case lir_shr:
 598     case lir_ushr:
 599     case lir_xadd:
 600     case lir_xchg:
 601     case lir_assert:
 602     {
 603       assert(op->as_Op2() != NULL, "must be");
 604       LIR_Op2* op2 = (LIR_Op2*)op;
 605       assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
 606              op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
 607 
 608       if (op2->_info)                     do_info(op2->_info);
 609       if (op2->_opr1->is_valid())         do_input(op2->_opr1);
 610       if (op2->_opr2->is_valid())         do_input(op2->_opr2);
 611       if (op2->_tmp1->is_valid())         do_temp(op2->_tmp1);
 612       if (op2->_result->is_valid())       do_output(op2->_result);
 613       if (op->code() == lir_xchg || op->code() == lir_xadd) {
 614         // on ARM and PPC, return value is loaded first so could
 615         // destroy inputs. On other platforms that implement those
 616         // (x86, sparc), the extra constrainsts are harmless.
 617         if (op2->_opr1->is_valid())       do_temp(op2->_opr1);
 618         if (op2->_opr2->is_valid())       do_temp(op2->_opr2);
 619       }
 620 
 621       break;
 622     }
 623 
 624     // special handling for cmove: right input operand must not be equal
 625     // to the result operand, otherwise the backend fails
 626     case lir_cmove:
 627     {
 628       assert(op->as_Op2() != NULL, "must be");
 629       LIR_Op2* op2 = (LIR_Op2*)op;
 630 
 631       assert(op2->_info == NULL && op2->_tmp1->is_illegal() && op2->_tmp2->is_illegal() &&
 632              op2->_tmp3->is_illegal() && op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
 633       assert(op2->_opr1->is_valid() && op2->_opr2->is_valid() && op2->_result->is_valid(), "used");
 634 
 635       do_input(op2->_opr1);
 636       do_input(op2->_opr2);
 637       do_temp(op2->_opr2);
 638       do_output(op2->_result);
 639 
 640       break;
 641     }
 642 
 643     // vspecial handling for strict operations: register input operands
 644     // as temp to guarantee that they do not overlap with other
 645     // registers
 646     case lir_mul_strictfp:
 647     case lir_div_strictfp:
 648     {
 649       assert(op->as_Op2() != NULL, "must be");
 650       LIR_Op2* op2 = (LIR_Op2*)op;
 651 
 652       assert(op2->_info == NULL, "not used");
 653       assert(op2->_opr1->is_valid(), "used");
 654       assert(op2->_opr2->is_valid(), "used");
 655       assert(op2->_result->is_valid(), "used");
 656       assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
 657              op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
 658 
 659       do_input(op2->_opr1); do_temp(op2->_opr1);
 660       do_input(op2->_opr2); do_temp(op2->_opr2);
 661       if (op2->_tmp1->is_valid()) do_temp(op2->_tmp1);
 662       do_output(op2->_result);
 663 
 664       break;
 665     }
 666 
 667     case lir_throw: {
 668       assert(op->as_Op2() != NULL, "must be");
 669       LIR_Op2* op2 = (LIR_Op2*)op;
 670 
 671       if (op2->_info)                     do_info(op2->_info);
 672       if (op2->_opr1->is_valid())         do_temp(op2->_opr1);
 673       if (op2->_opr2->is_valid())         do_input(op2->_opr2); // exception object is input parameter
 674       assert(op2->_result->is_illegal(), "no result");
 675       assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
 676              op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
 677 
 678       break;
 679     }
 680 
 681     case lir_unwind: {
 682       assert(op->as_Op1() != NULL, "must be");
 683       LIR_Op1* op1 = (LIR_Op1*)op;
 684 
 685       assert(op1->_info == NULL, "no info");
 686       assert(op1->_opr->is_valid(), "exception oop");         do_input(op1->_opr);
 687       assert(op1->_result->is_illegal(), "no result");
 688 
 689       break;
 690     }
 691 
 692 // LIR_Op3
 693     case lir_idiv:
 694     case lir_irem: {
 695       assert(op->as_Op3() != NULL, "must be");
 696       LIR_Op3* op3= (LIR_Op3*)op;
 697 
 698       if (op3->_info)                     do_info(op3->_info);
 699       if (op3->_opr1->is_valid())         do_input(op3->_opr1);
 700 
 701       // second operand is input and temp, so ensure that second operand
 702       // and third operand get not the same register
 703       if (op3->_opr2->is_valid())         do_input(op3->_opr2);
 704       if (op3->_opr2->is_valid())         do_temp(op3->_opr2);
 705       if (op3->_opr3->is_valid())         do_temp(op3->_opr3);
 706 
 707       if (op3->_result->is_valid())       do_output(op3->_result);
 708 
 709       break;
 710     }
 711 
 712     case lir_fmad:
 713     case lir_fmaf: {
 714       assert(op->as_Op3() != NULL, "must be");
 715       LIR_Op3* op3= (LIR_Op3*)op;
 716       assert(op3->_info == NULL, "no info");
 717       do_input(op3->_opr1);
 718       do_input(op3->_opr2);
 719       do_input(op3->_opr3);
 720       do_output(op3->_result);
 721       break;
 722     }
 723 
 724 // LIR_OpJavaCall
 725     case lir_static_call:
 726     case lir_optvirtual_call:
 727     case lir_icvirtual_call:
 728     case lir_virtual_call:
 729     case lir_dynamic_call: {
 730       LIR_OpJavaCall* opJavaCall = op->as_OpJavaCall();
 731       assert(opJavaCall != NULL, "must be");
 732 
 733       if (opJavaCall->_receiver->is_valid())     do_input(opJavaCall->_receiver);
 734 
 735       // only visit register parameters
 736       int n = opJavaCall->_arguments->length();
 737       for (int i = opJavaCall->_receiver->is_valid() ? 1 : 0; i < n; i++) {
 738         if (!opJavaCall->_arguments->at(i)->is_pointer()) {
 739           do_input(*opJavaCall->_arguments->adr_at(i));
 740         }
 741       }
 742 
 743       if (opJavaCall->_info)                     do_info(opJavaCall->_info);
 744       if (FrameMap::method_handle_invoke_SP_save_opr() != LIR_OprFact::illegalOpr &&
 745           opJavaCall->is_method_handle_invoke()) {
 746         opJavaCall->_method_handle_invoke_SP_save_opr = FrameMap::method_handle_invoke_SP_save_opr();
 747         do_temp(opJavaCall->_method_handle_invoke_SP_save_opr);
 748       }
 749       do_call();
 750       if (opJavaCall->_result->is_valid())       do_output(opJavaCall->_result);
 751 
 752       break;
 753     }
 754 
 755 
 756 // LIR_OpRTCall
 757     case lir_rtcall: {
 758       assert(op->as_OpRTCall() != NULL, "must be");
 759       LIR_OpRTCall* opRTCall = (LIR_OpRTCall*)op;
 760 
 761       // only visit register parameters
 762       int n = opRTCall->_arguments->length();
 763       for (int i = 0; i < n; i++) {
 764         if (!opRTCall->_arguments->at(i)->is_pointer()) {
 765           do_input(*opRTCall->_arguments->adr_at(i));
 766         }
 767       }
 768       if (opRTCall->_info)                     do_info(opRTCall->_info);
 769       if (opRTCall->_tmp->is_valid())          do_temp(opRTCall->_tmp);
 770       do_call();
 771       if (opRTCall->_result->is_valid())       do_output(opRTCall->_result);
 772 
 773       break;
 774     }
 775 
 776 
 777 // LIR_OpArrayCopy
 778     case lir_arraycopy: {
 779       assert(op->as_OpArrayCopy() != NULL, "must be");
 780       LIR_OpArrayCopy* opArrayCopy = (LIR_OpArrayCopy*)op;
 781 
 782       assert(opArrayCopy->_result->is_illegal(), "unused");
 783       assert(opArrayCopy->_src->is_valid(), "used");          do_input(opArrayCopy->_src);     do_temp(opArrayCopy->_src);
 784       assert(opArrayCopy->_src_pos->is_valid(), "used");      do_input(opArrayCopy->_src_pos); do_temp(opArrayCopy->_src_pos);
 785       assert(opArrayCopy->_dst->is_valid(), "used");          do_input(opArrayCopy->_dst);     do_temp(opArrayCopy->_dst);
 786       assert(opArrayCopy->_dst_pos->is_valid(), "used");      do_input(opArrayCopy->_dst_pos); do_temp(opArrayCopy->_dst_pos);
 787       assert(opArrayCopy->_length->is_valid(), "used");       do_input(opArrayCopy->_length);  do_temp(opArrayCopy->_length);
 788       assert(opArrayCopy->_tmp->is_valid(), "used");          do_temp(opArrayCopy->_tmp);
 789       if (opArrayCopy->_info)                     do_info(opArrayCopy->_info);
 790 
 791       // the implementation of arraycopy always has a call into the runtime
 792       do_call();
 793 
 794       break;
 795     }
 796 
 797 
 798 // LIR_OpUpdateCRC32
 799     case lir_updatecrc32: {
 800       assert(op->as_OpUpdateCRC32() != NULL, "must be");
 801       LIR_OpUpdateCRC32* opUp = (LIR_OpUpdateCRC32*)op;
 802 
 803       assert(opUp->_crc->is_valid(), "used");          do_input(opUp->_crc);     do_temp(opUp->_crc);
 804       assert(opUp->_val->is_valid(), "used");          do_input(opUp->_val);     do_temp(opUp->_val);
 805       assert(opUp->_result->is_valid(), "used");       do_output(opUp->_result);
 806       assert(opUp->_info == NULL, "no info for LIR_OpUpdateCRC32");
 807 
 808       break;
 809     }
 810 
 811 
 812 // LIR_OpLock
 813     case lir_lock:
 814     case lir_unlock: {
 815       assert(op->as_OpLock() != NULL, "must be");
 816       LIR_OpLock* opLock = (LIR_OpLock*)op;
 817 
 818       if (opLock->_info)                          do_info(opLock->_info);
 819 
 820       // TODO: check if these operands really have to be temp
 821       // (or if input is sufficient). This may have influence on the oop map!
 822       assert(opLock->_lock->is_valid(), "used");  do_temp(opLock->_lock);
 823       assert(opLock->_hdr->is_valid(),  "used");  do_temp(opLock->_hdr);
 824       assert(opLock->_obj->is_valid(),  "used");  do_temp(opLock->_obj);
 825 
 826       if (opLock->_scratch->is_valid())           do_temp(opLock->_scratch);
 827       assert(opLock->_result->is_illegal(), "unused");
 828 
 829       do_stub(opLock->_stub);
 830 
 831       break;
 832     }
 833 
 834 
 835 // LIR_OpDelay
 836     case lir_delay_slot: {
 837       assert(op->as_OpDelay() != NULL, "must be");
 838       LIR_OpDelay* opDelay = (LIR_OpDelay*)op;
 839 
 840       visit(opDelay->delay_op());
 841       break;
 842     }
 843 
 844 // LIR_OpTypeCheck
 845     case lir_instanceof:
 846     case lir_checkcast:
 847     case lir_store_check: {
 848       assert(op->as_OpTypeCheck() != NULL, "must be");
 849       LIR_OpTypeCheck* opTypeCheck = (LIR_OpTypeCheck*)op;
 850 
 851       if (opTypeCheck->_info_for_exception)       do_info(opTypeCheck->_info_for_exception);
 852       if (opTypeCheck->_info_for_patch)           do_info(opTypeCheck->_info_for_patch);
 853       if (opTypeCheck->_object->is_valid())       do_input(opTypeCheck->_object);
 854       if (op->code() == lir_store_check && opTypeCheck->_object->is_valid()) {
 855         do_temp(opTypeCheck->_object);
 856       }
 857       if (opTypeCheck->_array->is_valid())        do_input(opTypeCheck->_array);
 858       if (opTypeCheck->_tmp1->is_valid())         do_temp(opTypeCheck->_tmp1);
 859       if (opTypeCheck->_tmp2->is_valid())         do_temp(opTypeCheck->_tmp2);
 860       if (opTypeCheck->_tmp3->is_valid())         do_temp(opTypeCheck->_tmp3);
 861       if (opTypeCheck->_result->is_valid())       do_output(opTypeCheck->_result);
 862                                                   do_stub(opTypeCheck->_stub);
 863       break;
 864     }
 865 
 866 // LIR_OpCompareAndSwap
 867     case lir_cas_long:
 868     case lir_cas_obj:
 869     case lir_cas_int: {
 870       assert(op->as_OpCompareAndSwap() != NULL, "must be");
 871       LIR_OpCompareAndSwap* opCompareAndSwap = (LIR_OpCompareAndSwap*)op;
 872 
 873       assert(opCompareAndSwap->_addr->is_valid(),      "used");
 874       assert(opCompareAndSwap->_cmp_value->is_valid(), "used");
 875       assert(opCompareAndSwap->_new_value->is_valid(), "used");
 876       if (opCompareAndSwap->_info)                    do_info(opCompareAndSwap->_info);
 877                                                       do_input(opCompareAndSwap->_addr);
 878                                                       do_temp(opCompareAndSwap->_addr);
 879                                                       do_input(opCompareAndSwap->_cmp_value);
 880                                                       do_temp(opCompareAndSwap->_cmp_value);
 881                                                       do_input(opCompareAndSwap->_new_value);
 882                                                       do_temp(opCompareAndSwap->_new_value);
 883       if (opCompareAndSwap->_tmp1->is_valid())        do_temp(opCompareAndSwap->_tmp1);
 884       if (opCompareAndSwap->_tmp2->is_valid())        do_temp(opCompareAndSwap->_tmp2);
 885       if (opCompareAndSwap->_result->is_valid())      do_output(opCompareAndSwap->_result);
 886 
 887       break;
 888     }
 889 
 890 
 891 // LIR_OpAllocArray;
 892     case lir_alloc_array: {
 893       assert(op->as_OpAllocArray() != NULL, "must be");
 894       LIR_OpAllocArray* opAllocArray = (LIR_OpAllocArray*)op;
 895 
 896       if (opAllocArray->_info)                        do_info(opAllocArray->_info);
 897       if (opAllocArray->_klass->is_valid())           do_input(opAllocArray->_klass); do_temp(opAllocArray->_klass);
 898       if (opAllocArray->_len->is_valid())             do_input(opAllocArray->_len);   do_temp(opAllocArray->_len);
 899       if (opAllocArray->_tmp1->is_valid())            do_temp(opAllocArray->_tmp1);
 900       if (opAllocArray->_tmp2->is_valid())            do_temp(opAllocArray->_tmp2);
 901       if (opAllocArray->_tmp3->is_valid())            do_temp(opAllocArray->_tmp3);
 902       if (opAllocArray->_tmp4->is_valid())            do_temp(opAllocArray->_tmp4);
 903       if (opAllocArray->_result->is_valid())          do_output(opAllocArray->_result);
 904                                                       do_stub(opAllocArray->_stub);
 905       break;
 906     }
 907 
 908 // LIR_OpProfileCall:
 909     case lir_profile_call: {
 910       assert(op->as_OpProfileCall() != NULL, "must be");
 911       LIR_OpProfileCall* opProfileCall = (LIR_OpProfileCall*)op;
 912 
 913       if (opProfileCall->_recv->is_valid())              do_temp(opProfileCall->_recv);
 914       assert(opProfileCall->_mdo->is_valid(), "used");   do_temp(opProfileCall->_mdo);
 915       assert(opProfileCall->_tmp1->is_valid(), "used");  do_temp(opProfileCall->_tmp1);
 916       break;
 917     }
 918 
 919 // LIR_OpProfileType:
 920     case lir_profile_type: {
 921       assert(op->as_OpProfileType() != NULL, "must be");
 922       LIR_OpProfileType* opProfileType = (LIR_OpProfileType*)op;
 923 
 924       do_input(opProfileType->_mdp); do_temp(opProfileType->_mdp);
 925       do_input(opProfileType->_obj);
 926       do_temp(opProfileType->_tmp);
 927       break;
 928     }
 929   default:
 930     op->visit(this);
 931   }
 932 }
 933 
 934 void LIR_Op::visit(LIR_OpVisitState* state) {
 935   ShouldNotReachHere();
 936 }
 937 
 938 void LIR_OpVisitState::do_stub(CodeStub* stub) {
 939   if (stub != NULL) {
 940     stub->visit(this);
 941   }
 942 }
 943 
 944 XHandlers* LIR_OpVisitState::all_xhandler() {
 945   XHandlers* result = NULL;
 946 
 947   int i;
 948   for (i = 0; i < info_count(); i++) {
 949     if (info_at(i)->exception_handlers() != NULL) {
 950       result = info_at(i)->exception_handlers();
 951       break;
 952     }
 953   }
 954 
 955 #ifdef ASSERT
 956   for (i = 0; i < info_count(); i++) {
 957     assert(info_at(i)->exception_handlers() == NULL ||
 958            info_at(i)->exception_handlers() == result,
 959            "only one xhandler list allowed per LIR-operation");
 960   }
 961 #endif
 962 
 963   if (result != NULL) {
 964     return result;
 965   } else {
 966     return new XHandlers();
 967   }
 968 
 969   return result;
 970 }
 971 
 972 
 973 #ifdef ASSERT
 974 bool LIR_OpVisitState::no_operands(LIR_Op* op) {
 975   visit(op);
 976 
 977   return opr_count(inputMode) == 0 &&
 978          opr_count(outputMode) == 0 &&
 979          opr_count(tempMode) == 0 &&
 980          info_count() == 0 &&
 981          !has_call() &&
 982          !has_slow_case();
 983 }
 984 #endif
 985 
 986 //---------------------------------------------------
 987 
 988 
 989 void LIR_OpJavaCall::emit_code(LIR_Assembler* masm) {
 990   masm->emit_call(this);
 991 }
 992 
 993 void LIR_OpRTCall::emit_code(LIR_Assembler* masm) {
 994   masm->emit_rtcall(this);
 995 }
 996 
 997 void LIR_OpLabel::emit_code(LIR_Assembler* masm) {
 998   masm->emit_opLabel(this);
 999 }
1000 
1001 void LIR_OpArrayCopy::emit_code(LIR_Assembler* masm) {
1002   masm->emit_arraycopy(this);
1003   masm->append_code_stub(stub());
1004 }
1005 
1006 void LIR_OpUpdateCRC32::emit_code(LIR_Assembler* masm) {
1007   masm->emit_updatecrc32(this);
1008 }
1009 
1010 void LIR_Op0::emit_code(LIR_Assembler* masm) {
1011   masm->emit_op0(this);
1012 }
1013 
1014 void LIR_Op1::emit_code(LIR_Assembler* masm) {
1015   masm->emit_op1(this);
1016 }
1017 
1018 void LIR_OpAllocObj::emit_code(LIR_Assembler* masm) {
1019   masm->emit_alloc_obj(this);
1020   masm->append_code_stub(stub());
1021 }
1022 
1023 void LIR_OpBranch::emit_code(LIR_Assembler* masm) {
1024   masm->emit_opBranch(this);
1025   if (stub()) {
1026     masm->append_code_stub(stub());
1027   }
1028 }
1029 
1030 void LIR_OpConvert::emit_code(LIR_Assembler* masm) {
1031   masm->emit_opConvert(this);
1032   if (stub() != NULL) {
1033     masm->append_code_stub(stub());
1034   }
1035 }
1036 
1037 void LIR_Op2::emit_code(LIR_Assembler* masm) {
1038   masm->emit_op2(this);
1039 }
1040 
1041 void LIR_OpAllocArray::emit_code(LIR_Assembler* masm) {
1042   masm->emit_alloc_array(this);
1043   masm->append_code_stub(stub());
1044 }
1045 
1046 void LIR_OpTypeCheck::emit_code(LIR_Assembler* masm) {
1047   masm->emit_opTypeCheck(this);
1048   if (stub()) {
1049     masm->append_code_stub(stub());
1050   }
1051 }
1052 
1053 void LIR_OpCompareAndSwap::emit_code(LIR_Assembler* masm) {
1054   masm->emit_compare_and_swap(this);
1055 }
1056 
1057 void LIR_Op3::emit_code(LIR_Assembler* masm) {
1058   masm->emit_op3(this);
1059 }
1060 
1061 void LIR_OpLock::emit_code(LIR_Assembler* masm) {
1062   masm->emit_lock(this);
1063   if (stub()) {
1064     masm->append_code_stub(stub());
1065   }
1066 }
1067 
1068 #ifdef ASSERT
1069 void LIR_OpAssert::emit_code(LIR_Assembler* masm) {
1070   masm->emit_assert(this);
1071 }
1072 #endif
1073 
1074 void LIR_OpDelay::emit_code(LIR_Assembler* masm) {
1075   masm->emit_delay(this);
1076 }
1077 
1078 void LIR_OpProfileCall::emit_code(LIR_Assembler* masm) {
1079   masm->emit_profile_call(this);
1080 }
1081 
1082 void LIR_OpProfileType::emit_code(LIR_Assembler* masm) {
1083   masm->emit_profile_type(this);
1084 }
1085 
1086 // LIR_List
1087 LIR_List::LIR_List(Compilation* compilation, BlockBegin* block)
1088   : _operations(8)
1089   , _compilation(compilation)
1090 #ifndef PRODUCT
1091   , _block(block)
1092 #endif
1093 #ifdef ASSERT
1094   , _file(NULL)
1095   , _line(0)
1096 #endif
1097 { }
1098 
1099 
1100 #ifdef ASSERT
1101 void LIR_List::set_file_and_line(const char * file, int line) {
1102   const char * f = strrchr(file, '/');
1103   if (f == NULL) f = strrchr(file, '\\');
1104   if (f == NULL) {
1105     f = file;
1106   } else {
1107     f++;
1108   }
1109   _file = f;
1110   _line = line;
1111 }
1112 #endif
1113 
1114 
1115 void LIR_List::append(LIR_InsertionBuffer* buffer) {
1116   assert(this == buffer->lir_list(), "wrong lir list");
1117   const int n = _operations.length();
1118 
1119   if (buffer->number_of_ops() > 0) {
1120     // increase size of instructions list
1121     _operations.at_grow(n + buffer->number_of_ops() - 1, NULL);
1122     // insert ops from buffer into instructions list
1123     int op_index = buffer->number_of_ops() - 1;
1124     int ip_index = buffer->number_of_insertion_points() - 1;
1125     int from_index = n - 1;
1126     int to_index = _operations.length() - 1;
1127     for (; ip_index >= 0; ip_index --) {
1128       int index = buffer->index_at(ip_index);
1129       // make room after insertion point
1130       while (index < from_index) {
1131         _operations.at_put(to_index --, _operations.at(from_index --));
1132       }
1133       // insert ops from buffer
1134       for (int i = buffer->count_at(ip_index); i > 0; i --) {
1135         _operations.at_put(to_index --, buffer->op_at(op_index --));
1136       }
1137     }
1138   }
1139 
1140   buffer->finish();
1141 }
1142 
1143 
1144 void LIR_List::oop2reg_patch(jobject o, LIR_Opr reg, CodeEmitInfo* info) {
1145   assert(reg->type() == T_OBJECT, "bad reg");
1146   append(new LIR_Op1(lir_move, LIR_OprFact::oopConst(o),  reg, T_OBJECT, lir_patch_normal, info));
1147 }
1148 
1149 void LIR_List::klass2reg_patch(Metadata* o, LIR_Opr reg, CodeEmitInfo* info) {
1150   assert(reg->type() == T_METADATA, "bad reg");
1151   append(new LIR_Op1(lir_move, LIR_OprFact::metadataConst(o), reg, T_METADATA, lir_patch_normal, info));
1152 }
1153 
1154 void LIR_List::load(LIR_Address* addr, LIR_Opr src, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1155   append(new LIR_Op1(
1156             lir_move,
1157             LIR_OprFact::address(addr),
1158             src,
1159             addr->type(),
1160             patch_code,
1161             info));
1162 }
1163 
1164 
1165 void LIR_List::volatile_load_mem_reg(LIR_Address* address, LIR_Opr dst, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1166   append(new LIR_Op1(
1167             lir_move,
1168             LIR_OprFact::address(address),
1169             dst,
1170             address->type(),
1171             patch_code,
1172             info, lir_move_volatile));
1173 }
1174 
1175 void LIR_List::volatile_load_unsafe_reg(LIR_Opr base, LIR_Opr offset, LIR_Opr dst, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1176   append(new LIR_Op1(
1177             lir_move,
1178             LIR_OprFact::address(new LIR_Address(base, offset, type)),
1179             dst,
1180             type,
1181             patch_code,
1182             info, lir_move_volatile));
1183 }
1184 
1185 
1186 void LIR_List::store_mem_int(jint v, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1187   append(new LIR_Op1(
1188             lir_move,
1189             LIR_OprFact::intConst(v),
1190             LIR_OprFact::address(new LIR_Address(base, offset_in_bytes, type)),
1191             type,
1192             patch_code,
1193             info));
1194 }
1195 
1196 
1197 void LIR_List::store_mem_oop(jobject o, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1198   append(new LIR_Op1(
1199             lir_move,
1200             LIR_OprFact::oopConst(o),
1201             LIR_OprFact::address(new LIR_Address(base, offset_in_bytes, type)),
1202             type,
1203             patch_code,
1204             info));
1205 }
1206 
1207 
1208 void LIR_List::store(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1209   append(new LIR_Op1(
1210             lir_move,
1211             src,
1212             LIR_OprFact::address(addr),
1213             addr->type(),
1214             patch_code,
1215             info));
1216 }
1217 
1218 
1219 void LIR_List::volatile_store_mem_reg(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1220   append(new LIR_Op1(
1221             lir_move,
1222             src,
1223             LIR_OprFact::address(addr),
1224             addr->type(),
1225             patch_code,
1226             info,
1227             lir_move_volatile));
1228 }
1229 
1230 void LIR_List::volatile_store_unsafe_reg(LIR_Opr src, LIR_Opr base, LIR_Opr offset, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1231   append(new LIR_Op1(
1232             lir_move,
1233             src,
1234             LIR_OprFact::address(new LIR_Address(base, offset, type)),
1235             type,
1236             patch_code,
1237             info, lir_move_volatile));
1238 }
1239 
1240 
1241 void LIR_List::idiv(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1242   append(new LIR_Op3(
1243                     lir_idiv,
1244                     left,
1245                     right,
1246                     tmp,
1247                     res,
1248                     info));
1249 }
1250 
1251 
1252 void LIR_List::idiv(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1253   append(new LIR_Op3(
1254                     lir_idiv,
1255                     left,
1256                     LIR_OprFact::intConst(right),
1257                     tmp,
1258                     res,
1259                     info));
1260 }
1261 
1262 
1263 void LIR_List::irem(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1264   append(new LIR_Op3(
1265                     lir_irem,
1266                     left,
1267                     right,
1268                     tmp,
1269                     res,
1270                     info));
1271 }
1272 
1273 
1274 void LIR_List::irem(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1275   append(new LIR_Op3(
1276                     lir_irem,
1277                     left,
1278                     LIR_OprFact::intConst(right),
1279                     tmp,
1280                     res,
1281                     info));
1282 }
1283 
1284 
1285 void LIR_List::cmp_mem_int(LIR_Condition condition, LIR_Opr base, int disp, int c, CodeEmitInfo* info) {
1286   append(new LIR_Op2(
1287                     lir_cmp,
1288                     condition,
1289                     LIR_OprFact::address(new LIR_Address(base, disp, T_INT)),
1290                     LIR_OprFact::intConst(c),
1291                     info));
1292 }
1293 
1294 
1295 void LIR_List::cmp_reg_mem(LIR_Condition condition, LIR_Opr reg, LIR_Address* addr, CodeEmitInfo* info) {
1296   append(new LIR_Op2(
1297                     lir_cmp,
1298                     condition,
1299                     reg,
1300                     LIR_OprFact::address(addr),
1301                     info));
1302 }
1303 
1304 void LIR_List::allocate_object(LIR_Opr dst, LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4,
1305                                int header_size, int object_size, LIR_Opr klass, bool init_check, CodeStub* stub) {
1306   append(new LIR_OpAllocObj(
1307                            klass,
1308                            dst,
1309                            t1,
1310                            t2,
1311                            t3,
1312                            t4,
1313                            header_size,
1314                            object_size,
1315                            init_check,
1316                            stub));
1317 }
1318 
1319 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) {
1320   append(new LIR_OpAllocArray(
1321                            klass,
1322                            len,
1323                            dst,
1324                            t1,
1325                            t2,
1326                            t3,
1327                            t4,
1328                            type,
1329                            stub));
1330 }
1331 
1332 void LIR_List::shift_left(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1333  append(new LIR_Op2(
1334                     lir_shl,
1335                     value,
1336                     count,
1337                     dst,
1338                     tmp));
1339 }
1340 
1341 void LIR_List::shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1342  append(new LIR_Op2(
1343                     lir_shr,
1344                     value,
1345                     count,
1346                     dst,
1347                     tmp));
1348 }
1349 
1350 
1351 void LIR_List::unsigned_shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1352  append(new LIR_Op2(
1353                     lir_ushr,
1354                     value,
1355                     count,
1356                     dst,
1357                     tmp));
1358 }
1359 
1360 void LIR_List::fcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst, bool is_unordered_less) {
1361   append(new LIR_Op2(is_unordered_less ? lir_ucmp_fd2i : lir_cmp_fd2i,
1362                      left,
1363                      right,
1364                      dst));
1365 }
1366 
1367 void LIR_List::lock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info) {
1368   append(new LIR_OpLock(
1369                     lir_lock,
1370                     hdr,
1371                     obj,
1372                     lock,
1373                     scratch,
1374                     stub,
1375                     info));
1376 }
1377 
1378 void LIR_List::unlock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub) {
1379   append(new LIR_OpLock(
1380                     lir_unlock,
1381                     hdr,
1382                     obj,
1383                     lock,
1384                     scratch,
1385                     stub,
1386                     NULL));
1387 }
1388 
1389 
1390 void check_LIR() {
1391   // cannot do the proper checking as PRODUCT and other modes return different results
1392   // guarantee(sizeof(LIR_OprDesc) == wordSize, "may not have a v-table");
1393 }
1394 
1395 
1396 
1397 void LIR_List::checkcast (LIR_Opr result, LIR_Opr object, ciKlass* klass,
1398                           LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
1399                           CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub,
1400                           ciMethod* profiled_method, int profiled_bci) {
1401   LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_checkcast, result, object, klass,
1402                                            tmp1, tmp2, tmp3, fast_check, info_for_exception, info_for_patch, stub);
1403   if (profiled_method != NULL) {
1404     c->set_profiled_method(profiled_method);
1405     c->set_profiled_bci(profiled_bci);
1406     c->set_should_profile(true);
1407   }
1408   append(c);
1409 }
1410 
1411 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) {
1412   LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_instanceof, result, object, klass, tmp1, tmp2, tmp3, fast_check, NULL, info_for_patch, NULL);
1413   if (profiled_method != NULL) {
1414     c->set_profiled_method(profiled_method);
1415     c->set_profiled_bci(profiled_bci);
1416     c->set_should_profile(true);
1417   }
1418   append(c);
1419 }
1420 
1421 
1422 void LIR_List::store_check(LIR_Opr object, LIR_Opr array, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3,
1423                            CodeEmitInfo* info_for_exception, ciMethod* profiled_method, int profiled_bci) {
1424   LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_store_check, object, array, tmp1, tmp2, tmp3, info_for_exception);
1425   if (profiled_method != NULL) {
1426     c->set_profiled_method(profiled_method);
1427     c->set_profiled_bci(profiled_bci);
1428     c->set_should_profile(true);
1429   }
1430   append(c);
1431 }
1432 
1433 void LIR_List::null_check(LIR_Opr opr, CodeEmitInfo* info, bool deoptimize_on_null) {
1434   if (deoptimize_on_null) {
1435     // Emit an explicit null check and deoptimize if opr is null
1436     CodeStub* deopt = new DeoptimizeStub(info, Deoptimization::Reason_null_check, Deoptimization::Action_none);
1437     cmp(lir_cond_equal, opr, LIR_OprFact::oopConst(NULL));
1438     branch(lir_cond_equal, T_OBJECT, deopt);
1439   } else {
1440     // Emit an implicit null check
1441     append(new LIR_Op1(lir_null_check, opr, info));
1442   }
1443 }
1444 
1445 void LIR_List::cas_long(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1446                         LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1447   append(new LIR_OpCompareAndSwap(lir_cas_long, addr, cmp_value, new_value, t1, t2, result));
1448 }
1449 
1450 void LIR_List::cas_obj(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1451                        LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1452   append(new LIR_OpCompareAndSwap(lir_cas_obj, addr, cmp_value, new_value, t1, t2, result));
1453 }
1454 
1455 void LIR_List::cas_int(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1456                        LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1457   append(new LIR_OpCompareAndSwap(lir_cas_int, addr, cmp_value, new_value, t1, t2, result));
1458 }
1459 
1460 
1461 #ifdef PRODUCT
1462 
1463 void print_LIR(BlockList* blocks) {
1464 }
1465 
1466 #else
1467 // LIR_OprDesc
1468 void LIR_OprDesc::print() const {
1469   print(tty);
1470 }
1471 
1472 void LIR_OprDesc::print(outputStream* out) const {
1473   if (is_illegal()) {
1474     return;
1475   }
1476 
1477   out->print("[");
1478   if (is_pointer()) {
1479     pointer()->print_value_on(out);
1480   } else if (is_single_stack()) {
1481     out->print("stack:%d", single_stack_ix());
1482   } else if (is_double_stack()) {
1483     out->print("dbl_stack:%d",double_stack_ix());
1484   } else if (is_virtual()) {
1485     out->print("R%d", vreg_number());
1486   } else if (is_single_cpu()) {
1487     out->print("%s", as_register()->name());
1488   } else if (is_double_cpu()) {
1489     out->print("%s", as_register_hi()->name());
1490     out->print("%s", as_register_lo()->name());
1491 #if defined(X86)
1492   } else if (is_single_xmm()) {
1493     out->print("%s", as_xmm_float_reg()->name());
1494   } else if (is_double_xmm()) {
1495     out->print("%s", as_xmm_double_reg()->name());
1496   } else if (is_single_fpu()) {
1497     out->print("fpu%d", fpu_regnr());
1498   } else if (is_double_fpu()) {
1499     out->print("fpu%d", fpu_regnrLo());
1500 #elif defined(AARCH64)
1501   } else if (is_single_fpu()) {
1502     out->print("fpu%d", fpu_regnr());
1503   } else if (is_double_fpu()) {
1504     out->print("fpu%d", fpu_regnrLo());
1505 #elif defined(ARM)
1506   } else if (is_single_fpu()) {
1507     out->print("s%d", fpu_regnr());
1508   } else if (is_double_fpu()) {
1509     out->print("d%d", fpu_regnrLo() >> 1);
1510 #else
1511   } else if (is_single_fpu()) {
1512     out->print("%s", as_float_reg()->name());
1513   } else if (is_double_fpu()) {
1514     out->print("%s", as_double_reg()->name());
1515 #endif
1516 
1517   } else if (is_illegal()) {
1518     out->print("-");
1519   } else {
1520     out->print("Unknown Operand");
1521   }
1522   if (!is_illegal()) {
1523     out->print("|%c", type_char());
1524   }
1525   if (is_register() && is_last_use()) {
1526     out->print("(last_use)");
1527   }
1528   out->print("]");
1529 }
1530 
1531 
1532 // LIR_Address
1533 void LIR_Const::print_value_on(outputStream* out) const {
1534   switch (type()) {
1535     case T_ADDRESS:out->print("address:%d",as_jint());          break;
1536     case T_INT:    out->print("int:%d",   as_jint());           break;
1537     case T_LONG:   out->print("lng:" JLONG_FORMAT, as_jlong()); break;
1538     case T_FLOAT:  out->print("flt:%f",   as_jfloat());         break;
1539     case T_DOUBLE: out->print("dbl:%f",   as_jdouble());        break;
1540     case T_OBJECT: out->print("obj:" INTPTR_FORMAT, p2i(as_jobject()));        break;
1541     case T_METADATA: out->print("metadata:" INTPTR_FORMAT, p2i(as_metadata()));break;
1542     default:       out->print("%3d:0x" UINT64_FORMAT_X, type(), (uint64_t)as_jlong()); break;
1543   }
1544 }
1545 
1546 // LIR_Address
1547 void LIR_Address::print_value_on(outputStream* out) const {
1548   out->print("Base:"); _base->print(out);
1549   if (!_index->is_illegal()) {
1550     out->print(" Index:"); _index->print(out);
1551     switch (scale()) {
1552     case times_1: break;
1553     case times_2: out->print(" * 2"); break;
1554     case times_4: out->print(" * 4"); break;
1555     case times_8: out->print(" * 8"); break;
1556     }
1557   }
1558   out->print(" Disp: " INTX_FORMAT, _disp);
1559 }
1560 
1561 // debug output of block header without InstructionPrinter
1562 //       (because phi functions are not necessary for LIR)
1563 static void print_block(BlockBegin* x) {
1564   // print block id
1565   BlockEnd* end = x->end();
1566   tty->print("B%d ", x->block_id());
1567 
1568   // print flags
1569   if (x->is_set(BlockBegin::std_entry_flag))               tty->print("std ");
1570   if (x->is_set(BlockBegin::osr_entry_flag))               tty->print("osr ");
1571   if (x->is_set(BlockBegin::exception_entry_flag))         tty->print("ex ");
1572   if (x->is_set(BlockBegin::subroutine_entry_flag))        tty->print("jsr ");
1573   if (x->is_set(BlockBegin::backward_branch_target_flag))  tty->print("bb ");
1574   if (x->is_set(BlockBegin::linear_scan_loop_header_flag)) tty->print("lh ");
1575   if (x->is_set(BlockBegin::linear_scan_loop_end_flag))    tty->print("le ");
1576 
1577   // print block bci range
1578   tty->print("[%d, %d] ", x->bci(), (end == NULL ? -1 : end->printable_bci()));
1579 
1580   // print predecessors and successors
1581   if (x->number_of_preds() > 0) {
1582     tty->print("preds: ");
1583     for (int i = 0; i < x->number_of_preds(); i ++) {
1584       tty->print("B%d ", x->pred_at(i)->block_id());
1585     }
1586   }
1587 
1588   if (x->number_of_sux() > 0) {
1589     tty->print("sux: ");
1590     for (int i = 0; i < x->number_of_sux(); i ++) {
1591       tty->print("B%d ", x->sux_at(i)->block_id());
1592     }
1593   }
1594 
1595   // print exception handlers
1596   if (x->number_of_exception_handlers() > 0) {
1597     tty->print("xhandler: ");
1598     for (int i = 0; i < x->number_of_exception_handlers();  i++) {
1599       tty->print("B%d ", x->exception_handler_at(i)->block_id());
1600     }
1601   }
1602 
1603   tty->cr();
1604 }
1605 
1606 void print_LIR(BlockList* blocks) {
1607   tty->print_cr("LIR:");
1608   int i;
1609   for (i = 0; i < blocks->length(); i++) {
1610     BlockBegin* bb = blocks->at(i);
1611     print_block(bb);
1612     tty->print("__id_Instruction___________________________________________"); tty->cr();
1613     bb->lir()->print_instructions();
1614   }
1615 }
1616 
1617 void LIR_List::print_instructions() {
1618   for (int i = 0; i < _operations.length(); i++) {
1619     _operations.at(i)->print(); tty->cr();
1620   }
1621   tty->cr();
1622 }
1623 
1624 // LIR_Ops printing routines
1625 // LIR_Op
1626 void LIR_Op::print_on(outputStream* out) const {
1627   if (id() != -1 || PrintCFGToFile) {
1628     out->print("%4d ", id());
1629   } else {
1630     out->print("     ");
1631   }
1632   out->print("%s ", name());
1633   print_instr(out);
1634   if (info() != NULL) out->print(" [bci:%d]", info()->stack()->bci());
1635 #ifdef ASSERT
1636   if (Verbose && _file != NULL) {
1637     out->print(" (%s:%d)", _file, _line);
1638   }
1639 #endif
1640 }
1641 
1642 const char * LIR_Op::name() const {
1643   const char* s = NULL;
1644   switch(code()) {
1645      // LIR_Op0
1646      case lir_membar:                s = "membar";        break;
1647      case lir_membar_acquire:        s = "membar_acquire"; break;
1648      case lir_membar_release:        s = "membar_release"; break;
1649      case lir_membar_loadload:       s = "membar_loadload";   break;
1650      case lir_membar_storestore:     s = "membar_storestore"; break;
1651      case lir_membar_loadstore:      s = "membar_loadstore";  break;
1652      case lir_membar_storeload:      s = "membar_storeload";  break;
1653      case lir_word_align:            s = "word_align";    break;
1654      case lir_label:                 s = "label";         break;
1655      case lir_nop:                   s = "nop";           break;
1656      case lir_on_spin_wait:          s = "on_spin_wait";  break;
1657      case lir_backwardbranch_target: s = "backbranch";    break;
1658      case lir_std_entry:             s = "std_entry";     break;
1659      case lir_osr_entry:             s = "osr_entry";     break;
1660      case lir_build_frame:           s = "build_frm";     break;
1661      case lir_fpop_raw:              s = "fpop_raw";      break;
1662      case lir_24bit_FPU:             s = "24bit_FPU";     break;
1663      case lir_reset_FPU:             s = "reset_FPU";     break;
1664      case lir_breakpoint:            s = "breakpoint";    break;
1665      case lir_get_thread:            s = "get_thread";    break;
1666      // LIR_Op1
1667      case lir_fxch:                  s = "fxch";          break;
1668      case lir_fld:                   s = "fld";           break;
1669      case lir_ffree:                 s = "ffree";         break;
1670      case lir_push:                  s = "push";          break;
1671      case lir_pop:                   s = "pop";           break;
1672      case lir_null_check:            s = "null_check";    break;
1673      case lir_return:                s = "return";        break;
1674      case lir_safepoint:             s = "safepoint";     break;
1675      case lir_neg:                   s = "neg";           break;
1676      case lir_leal:                  s = "leal";          break;
1677      case lir_branch:                s = "branch";        break;
1678      case lir_cond_float_branch:     s = "flt_cond_br";   break;
1679      case lir_move:                  s = "move";          break;
1680      case lir_roundfp:               s = "roundfp";       break;
1681      case lir_rtcall:                s = "rtcall";        break;
1682      case lir_throw:                 s = "throw";         break;
1683      case lir_unwind:                s = "unwind";        break;
1684      case lir_convert:               s = "convert";       break;
1685      case lir_alloc_object:          s = "alloc_obj";     break;
1686      case lir_monaddr:               s = "mon_addr";      break;
1687      case lir_pack64:                s = "pack64";        break;
1688      case lir_unpack64:              s = "unpack64";      break;
1689      case lir_getsp:                 s = "getsp";         break;
1690      case lir_getfp:                 s = "getfp";         break;
1691      // LIR_Op2
1692      case lir_cmp:                   s = "cmp";           break;
1693      case lir_cmp_l2i:               s = "cmp_l2i";       break;
1694      case lir_ucmp_fd2i:             s = "ucomp_fd2i";    break;
1695      case lir_cmp_fd2i:              s = "comp_fd2i";     break;
1696      case lir_cmove:                 s = "cmove";         break;
1697      case lir_add:                   s = "add";           break;
1698      case lir_sub:                   s = "sub";           break;
1699      case lir_mul:                   s = "mul";           break;
1700      case lir_mul_strictfp:          s = "mul_strictfp";  break;
1701      case lir_div:                   s = "div";           break;
1702      case lir_div_strictfp:          s = "div_strictfp";  break;
1703      case lir_rem:                   s = "rem";           break;
1704      case lir_abs:                   s = "abs";           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