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 
  46 LIR_Opr LIR_OprFact::illegalOpr = LIR_OprFact::illegal();
  47 
  48 LIR_Opr LIR_OprFact::value_type(ValueType* type) {
  49   ValueTag tag = type->tag();
  50   switch (tag) {
  51   case metaDataTag : {
  52     ClassConstant* c = type->as_ClassConstant();
  53     if (c != NULL && !c->value()->is_loaded()) {
  54       return LIR_OprFact::metadataConst(NULL);
  55     } else if (c != NULL) {
  56       return LIR_OprFact::metadataConst(c->value()->constant_encoding());
  57     } else {
  58       MethodConstant* m = type->as_MethodConstant();
  59       assert (m != NULL, "not a class or a method?");
  60       return LIR_OprFact::metadataConst(m->value()->constant_encoding());
  61     }
  62   }
  63   case objectTag : {
  64       return LIR_OprFact::oopConst(type->as_ObjectType()->encoding());
  65     }
  66   case addressTag: return LIR_OprFact::addressConst(type->as_AddressConstant()->value());
  67   case intTag    : return LIR_OprFact::intConst(type->as_IntConstant()->value());
  68   case floatTag  : return LIR_OprFact::floatConst(type->as_FloatConstant()->value());
  69   case longTag   : return LIR_OprFact::longConst(type->as_LongConstant()->value());
  70   case doubleTag : return LIR_OprFact::doubleConst(type->as_DoubleConstant()->value());
  71   default: ShouldNotReachHere(); return LIR_OprFact::intConst(-1);
  72   }
  73 }
  74 
  75 
  76 LIR_Opr LIR_OprFact::dummy_value_type(ValueType* type) {
  77   switch (type->tag()) {
  78     case objectTag: return LIR_OprFact::oopConst(NULL);
  79     case addressTag:return LIR_OprFact::addressConst(0);
  80     case intTag:    return LIR_OprFact::intConst(0);
  81     case floatTag:  return LIR_OprFact::floatConst(0.0);
  82     case longTag:   return LIR_OprFact::longConst(0);
  83     case doubleTag: return LIR_OprFact::doubleConst(0.0);
  84     default:        ShouldNotReachHere(); return LIR_OprFact::intConst(-1);
  85   }
  86   return illegalOpr;
  87 }
  88 
  89 
  90 
  91 //---------------------------------------------------
  92 
  93 
  94 LIR_Address::Scale LIR_Address::scale(BasicType type) {
  95   int elem_size = type2aelembytes(type);
  96   switch (elem_size) {
  97   case 1: return LIR_Address::times_1;
  98   case 2: return LIR_Address::times_2;
  99   case 4: return LIR_Address::times_4;
 100   case 8: return LIR_Address::times_8;
 101   }
 102   ShouldNotReachHere();
 103   return LIR_Address::times_1;
 104 }
 105 
 106 //---------------------------------------------------
 107 
 108 char LIR_OprDesc::type_char(BasicType t) {
 109   switch (t) {
 110     case T_ARRAY:
 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       assert((kindfield == cpu_register || kindfield == stack_value) &&
 170              size_field() == single_size, "must match");
 171       break;
 172 
 173     case T_ILLEGAL:
 174       // XXX TKR also means unknown right now
 175       // assert(is_illegal(), "must match");
 176       break;
 177 
 178     default:
 179       ShouldNotReachHere();
 180     }
 181   }
 182 #endif
 183 
 184 }
 185 #endif // PRODUCT
 186 
 187 
 188 bool LIR_OprDesc::is_oop() const {
 189   if (is_pointer()) {
 190     return pointer()->is_oop_pointer();
 191   } else {
 192     OprType t= type_field();
 193     assert(t != unknown_type, "not set");
 194     return t == object_type;
 195   }
 196 }
 197 
 198 
 199 
 200 void LIR_Op2::verify() const {
 201 #ifdef ASSERT
 202   switch (code()) {
 203     case lir_cmove:
 204     case lir_xchg:
 205       break;
 206 
 207     default:
 208       assert(!result_opr()->is_register() || !result_opr()->is_oop_register(),
 209              "can't produce oops from arith");
 210   }
 211 
 212   if (TwoOperandLIRForm) {
 213 
 214 #ifdef ASSERT
 215     bool threeOperandForm = false;
 216 #ifdef S390
 217     // There are 3 operand shifts on S390 (see LIR_Assembler::shift_op()).
 218     threeOperandForm =
 219       code() == lir_shl ||
 220       ((code() == lir_shr || code() == lir_ushr) && (result_opr()->is_double_cpu() || in_opr1()->type() == T_OBJECT));
 221 #endif
 222 #endif
 223 
 224     switch (code()) {
 225     case lir_add:
 226     case lir_sub:
 227     case lir_mul:
 228     case lir_mul_strictfp:
 229     case lir_div:
 230     case lir_div_strictfp:
 231     case lir_rem:
 232     case lir_logic_and:
 233     case lir_logic_or:
 234     case lir_logic_xor:
 235     case lir_shl:
 236     case lir_shr:
 237       assert(in_opr1() == result_opr() || threeOperandForm, "opr1 and result must match");
 238       assert(in_opr1()->is_valid() && in_opr2()->is_valid(), "must be valid");
 239       break;
 240 
 241     // special handling for lir_ushr because of write barriers
 242     case lir_ushr:
 243       assert(in_opr1() == result_opr() || in_opr2()->is_constant() || threeOperandForm, "opr1 and result must match or shift count is constant");
 244       assert(in_opr1()->is_valid() && in_opr2()->is_valid(), "must be valid");
 245       break;
 246 
 247     default:
 248       break;
 249     }
 250   }
 251 #endif
 252 }
 253 
 254 
 255 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, BasicType type, BlockBegin* block)
 256   : LIR_Op(lir_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*)NULL)
 257   , _cond(cond)
 258   , _type(type)
 259   , _label(block->label())
 260   , _block(block)
 261   , _ublock(NULL)
 262   , _stub(NULL) {
 263 }
 264 
 265 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, BasicType type, CodeStub* stub) :
 266   LIR_Op(lir_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*)NULL)
 267   , _cond(cond)
 268   , _type(type)
 269   , _label(stub->entry())
 270   , _block(NULL)
 271   , _ublock(NULL)
 272   , _stub(stub) {
 273 }
 274 
 275 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, BasicType type, BlockBegin* block, BlockBegin* ublock)
 276   : LIR_Op(lir_cond_float_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*)NULL)
 277   , _cond(cond)
 278   , _type(type)
 279   , _label(block->label())
 280   , _block(block)
 281   , _ublock(ublock)
 282   , _stub(NULL)
 283 {
 284 }
 285 
 286 void LIR_OpBranch::change_block(BlockBegin* b) {
 287   assert(_block != NULL, "must have old block");
 288   assert(_block->label() == label(), "must be equal");
 289 
 290   _block = b;
 291   _label = b->label();
 292 }
 293 
 294 void LIR_OpBranch::change_ublock(BlockBegin* b) {
 295   assert(_ublock != NULL, "must have old block");
 296   _ublock = b;
 297 }
 298 
 299 void LIR_OpBranch::negate_cond() {
 300   switch (_cond) {
 301     case lir_cond_equal:        _cond = lir_cond_notEqual;     break;
 302     case lir_cond_notEqual:     _cond = lir_cond_equal;        break;
 303     case lir_cond_less:         _cond = lir_cond_greaterEqual; break;
 304     case lir_cond_lessEqual:    _cond = lir_cond_greater;      break;
 305     case lir_cond_greaterEqual: _cond = lir_cond_less;         break;
 306     case lir_cond_greater:      _cond = lir_cond_lessEqual;    break;
 307     default: ShouldNotReachHere();
 308   }
 309 }
 310 
 311 
 312 LIR_OpTypeCheck::LIR_OpTypeCheck(LIR_Code code, LIR_Opr result, LIR_Opr object, ciKlass* klass,
 313                                  LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3,
 314                                  bool fast_check, CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch,
 315                                  CodeStub* stub)
 316 
 317   : LIR_Op(code, result, NULL)
 318   , _object(object)
 319   , _array(LIR_OprFact::illegalOpr)
 320   , _klass(klass)
 321   , _tmp1(tmp1)
 322   , _tmp2(tmp2)
 323   , _tmp3(tmp3)
 324   , _fast_check(fast_check)
 325   , _info_for_patch(info_for_patch)
 326   , _info_for_exception(info_for_exception)
 327   , _stub(stub)
 328   , _profiled_method(NULL)
 329   , _profiled_bci(-1)
 330   , _should_profile(false)
 331 {
 332   if (code == lir_checkcast) {
 333     assert(info_for_exception != NULL, "checkcast throws exceptions");
 334   } else if (code == lir_instanceof) {
 335     assert(info_for_exception == NULL, "instanceof throws no exceptions");
 336   } else {
 337     ShouldNotReachHere();
 338   }
 339 }
 340 
 341 
 342 
 343 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)
 344   : LIR_Op(code, LIR_OprFact::illegalOpr, NULL)
 345   , _object(object)
 346   , _array(array)
 347   , _klass(NULL)
 348   , _tmp1(tmp1)
 349   , _tmp2(tmp2)
 350   , _tmp3(tmp3)
 351   , _fast_check(false)
 352   , _info_for_patch(NULL)
 353   , _info_for_exception(info_for_exception)
 354   , _stub(NULL)
 355   , _profiled_method(NULL)
 356   , _profiled_bci(-1)
 357   , _should_profile(false)
 358 {
 359   if (code == lir_store_check) {
 360     _stub = new ArrayStoreExceptionStub(object, info_for_exception);
 361     assert(info_for_exception != NULL, "store_check throws exceptions");
 362   } else {
 363     ShouldNotReachHere();
 364   }
 365 }
 366 
 367 
 368 LIR_OpArrayCopy::LIR_OpArrayCopy(LIR_Opr src, LIR_Opr src_pos, LIR_Opr dst, LIR_Opr dst_pos, LIR_Opr length,
 369                                  LIR_Opr tmp, ciArrayKlass* expected_type, int flags, CodeEmitInfo* info)
 370   : LIR_Op(lir_arraycopy, LIR_OprFact::illegalOpr, info)
 371   , _src(src)
 372   , _src_pos(src_pos)
 373   , _dst(dst)
 374   , _dst_pos(dst_pos)
 375   , _length(length)
 376   , _tmp(tmp)
 377   , _expected_type(expected_type)
 378   , _flags(flags) {
 379   _stub = new ArrayCopyStub(this);
 380 }
 381 
 382 LIR_OpUpdateCRC32::LIR_OpUpdateCRC32(LIR_Opr crc, LIR_Opr val, LIR_Opr res)
 383   : LIR_Op(lir_updatecrc32, res, NULL)
 384   , _crc(crc)
 385   , _val(val) {
 386 }
 387 
 388 //-------------------verify--------------------------
 389 
 390 void LIR_Op1::verify() const {
 391   switch(code()) {
 392   case lir_move:
 393     assert(in_opr()->is_valid() && result_opr()->is_valid(), "must be");
 394     break;
 395   case lir_null_check:
 396     assert(in_opr()->is_register(), "must be");
 397     break;
 398   case lir_return:
 399     assert(in_opr()->is_register() || in_opr()->is_illegal(), "must be");
 400     break;
 401   default:
 402     break;
 403   }
 404 }
 405 
 406 void LIR_OpRTCall::verify() const {
 407   assert(strcmp(Runtime1::name_for_address(addr()), "<unknown function>") != 0, "unknown function");
 408 }
 409 
 410 //-------------------visits--------------------------
 411 
 412 // complete rework of LIR instruction visitor.
 413 // The virtual call for each instruction type is replaced by a big
 414 // switch that adds the operands for each instruction
 415 
 416 void LIR_OpVisitState::visit(LIR_Op* op) {
 417   // copy information from the LIR_Op
 418   reset();
 419   set_op(op);
 420 
 421   switch (op->code()) {
 422 
 423 // LIR_Op0
 424     case lir_word_align:               // result and info always invalid
 425     case lir_backwardbranch_target:    // result and info always invalid
 426     case lir_build_frame:              // result and info always invalid
 427     case lir_fpop_raw:                 // result and info always invalid
 428     case lir_24bit_FPU:                // result and info always invalid
 429     case lir_reset_FPU:                // result and info always invalid
 430     case lir_breakpoint:               // result and info always invalid
 431     case lir_membar:                   // result and info always invalid
 432     case lir_membar_acquire:           // result and info always invalid
 433     case lir_membar_release:           // result and info always invalid
 434     case lir_membar_loadload:          // result and info always invalid
 435     case lir_membar_storestore:        // result and info always invalid
 436     case lir_membar_loadstore:         // result and info always invalid
 437     case lir_membar_storeload:         // result and info always invalid
 438     case lir_on_spin_wait:
 439     {
 440       assert(op->as_Op0() != NULL, "must be");
 441       assert(op->_info == NULL, "info not used by this instruction");
 442       assert(op->_result->is_illegal(), "not used");
 443       break;
 444     }
 445 
 446     case lir_nop:                      // may have info, result always invalid
 447     case lir_std_entry:                // may have result, info always invalid
 448     case lir_osr_entry:                // may have result, info always invalid
 449     case lir_get_thread:               // may have result, info always invalid
 450     {
 451       assert(op->as_Op0() != NULL, "must be");
 452       if (op->_info != NULL)           do_info(op->_info);
 453       if (op->_result->is_valid())     do_output(op->_result);
 454       break;
 455     }
 456 
 457     case lir_getfp:          // result always valid
 458     case lir_getsp:          // result always valid
 459     {
 460       assert(op->as_Op0() != NULL, "must be");
 461       if (op->_info)                  do_info(op->_info);
 462       if (op->_result->is_valid())    do_output(op->_result);
 463       break;
 464     }
 465 
 466 
 467 
 468 // LIR_OpLabel
 469     case lir_label:                    // result and info always invalid
 470     {
 471       assert(op->as_OpLabel() != NULL, "must be");
 472       assert(op->_info == NULL, "info not used by this instruction");
 473       assert(op->_result->is_illegal(), "not used");
 474       break;
 475     }
 476 
 477 
 478 // LIR_Op1
 479     case lir_fxch:           // input always valid, result and info always invalid
 480     case lir_fld:            // input always valid, result and info always invalid
 481     case lir_ffree:          // input always valid, result and info always invalid
 482     case lir_push:           // input always valid, result and info always invalid
 483     case lir_pop:            // input always valid, result and info always invalid
 484     case lir_return:         // input always valid, result and info always invalid
 485     case lir_leal:           // 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_neg:
 594     case lir_logic_and:
 595     case lir_logic_or:
 596     case lir_logic_xor:
 597     case lir_shl:
 598     case lir_shr:
 599     case lir_ushr:
 600     case lir_xadd:
 601     case lir_xchg:
 602     case lir_assert:
 603     {
 604       assert(op->as_Op2() != NULL, "must be");
 605       LIR_Op2* op2 = (LIR_Op2*)op;
 606       assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
 607              op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
 608 
 609       if (op2->_info)                     do_info(op2->_info);
 610       if (op2->_opr1->is_valid())         do_input(op2->_opr1);
 611       if (op2->_opr2->is_valid())         do_input(op2->_opr2);
 612       if (op2->_tmp1->is_valid())         do_temp(op2->_tmp1);
 613       if (op2->_result->is_valid())       do_output(op2->_result);
 614       if (op->code() == lir_xchg || op->code() == lir_xadd) {
 615         // on ARM and PPC, return value is loaded first so could
 616         // destroy inputs. On other platforms that implement those
 617         // (x86, sparc), the extra constrainsts are harmless.
 618         if (op2->_opr1->is_valid())       do_temp(op2->_opr1);
 619         if (op2->_opr2->is_valid())       do_temp(op2->_opr2);
 620       }
 621 
 622       break;
 623     }
 624 
 625     // special handling for cmove: right input operand must not be equal
 626     // to the result operand, otherwise the backend fails
 627     case lir_cmove:
 628     {
 629       assert(op->as_Op2() != NULL, "must be");
 630       LIR_Op2* op2 = (LIR_Op2*)op;
 631 
 632       assert(op2->_info == NULL && op2->_tmp1->is_illegal() && op2->_tmp2->is_illegal() &&
 633              op2->_tmp3->is_illegal() && op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
 634       assert(op2->_opr1->is_valid() && op2->_opr2->is_valid() && op2->_result->is_valid(), "used");
 635 
 636       do_input(op2->_opr1);
 637       do_input(op2->_opr2);
 638       do_temp(op2->_opr2);
 639       do_output(op2->_result);
 640 
 641       break;
 642     }
 643 
 644     // vspecial handling for strict operations: register input operands
 645     // as temp to guarantee that they do not overlap with other
 646     // registers
 647     case lir_mul_strictfp:
 648     case lir_div_strictfp:
 649     {
 650       assert(op->as_Op2() != NULL, "must be");
 651       LIR_Op2* op2 = (LIR_Op2*)op;
 652 
 653       assert(op2->_info == NULL, "not used");
 654       assert(op2->_opr1->is_valid(), "used");
 655       assert(op2->_opr2->is_valid(), "used");
 656       assert(op2->_result->is_valid(), "used");
 657       assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
 658              op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
 659 
 660       do_input(op2->_opr1); do_temp(op2->_opr1);
 661       do_input(op2->_opr2); do_temp(op2->_opr2);
 662       if (op2->_tmp1->is_valid()) do_temp(op2->_tmp1);
 663       do_output(op2->_result);
 664 
 665       break;
 666     }
 667 
 668     case lir_throw: {
 669       assert(op->as_Op2() != NULL, "must be");
 670       LIR_Op2* op2 = (LIR_Op2*)op;
 671 
 672       if (op2->_info)                     do_info(op2->_info);
 673       if (op2->_opr1->is_valid())         do_temp(op2->_opr1);
 674       if (op2->_opr2->is_valid())         do_input(op2->_opr2); // exception object is input parameter
 675       assert(op2->_result->is_illegal(), "no result");
 676       assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
 677              op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
 678 
 679       break;
 680     }
 681 
 682     case lir_unwind: {
 683       assert(op->as_Op1() != NULL, "must be");
 684       LIR_Op1* op1 = (LIR_Op1*)op;
 685 
 686       assert(op1->_info == NULL, "no info");
 687       assert(op1->_opr->is_valid(), "exception oop");         do_input(op1->_opr);
 688       assert(op1->_result->is_illegal(), "no result");
 689 
 690       break;
 691     }
 692 
 693 // LIR_Op3
 694     case lir_idiv:
 695     case lir_irem: {
 696       assert(op->as_Op3() != NULL, "must be");
 697       LIR_Op3* op3= (LIR_Op3*)op;
 698 
 699       if (op3->_info)                     do_info(op3->_info);
 700       if (op3->_opr1->is_valid())         do_input(op3->_opr1);
 701 
 702       // second operand is input and temp, so ensure that second operand
 703       // and third operand get not the same register
 704       if (op3->_opr2->is_valid())         do_input(op3->_opr2);
 705       if (op3->_opr2->is_valid())         do_temp(op3->_opr2);
 706       if (op3->_opr3->is_valid())         do_temp(op3->_opr3);
 707 
 708       if (op3->_result->is_valid())       do_output(op3->_result);
 709 
 710       break;
 711     }
 712 
 713     case lir_fmad:
 714     case lir_fmaf: {
 715       assert(op->as_Op3() != NULL, "must be");
 716       LIR_Op3* op3= (LIR_Op3*)op;
 717       assert(op3->_info == NULL, "no info");
 718       do_input(op3->_opr1);
 719       do_input(op3->_opr2);
 720       do_input(op3->_opr3);
 721       do_output(op3->_result);
 722       break;
 723     }
 724 
 725 // LIR_OpJavaCall
 726     case lir_static_call:
 727     case lir_optvirtual_call:
 728     case lir_icvirtual_call:
 729     case lir_virtual_call:
 730     case lir_dynamic_call: {
 731       LIR_OpJavaCall* opJavaCall = op->as_OpJavaCall();
 732       assert(opJavaCall != NULL, "must be");
 733 
 734       if (opJavaCall->_receiver->is_valid())     do_input(opJavaCall->_receiver);
 735 
 736       // only visit register parameters
 737       int n = opJavaCall->_arguments->length();
 738       for (int i = opJavaCall->_receiver->is_valid() ? 1 : 0; i < n; i++) {
 739         if (!opJavaCall->_arguments->at(i)->is_pointer()) {
 740           do_input(*opJavaCall->_arguments->adr_at(i));
 741         }
 742       }
 743 
 744       if (opJavaCall->_info)                     do_info(opJavaCall->_info);
 745       if (FrameMap::method_handle_invoke_SP_save_opr() != LIR_OprFact::illegalOpr &&
 746           opJavaCall->is_method_handle_invoke()) {
 747         opJavaCall->_method_handle_invoke_SP_save_opr = FrameMap::method_handle_invoke_SP_save_opr();
 748         do_temp(opJavaCall->_method_handle_invoke_SP_save_opr);
 749       }
 750       do_call();
 751       if (opJavaCall->_result->is_valid())       do_output(opJavaCall->_result);
 752 
 753       break;
 754     }
 755 
 756 
 757 // LIR_OpRTCall
 758     case lir_rtcall: {
 759       assert(op->as_OpRTCall() != NULL, "must be");
 760       LIR_OpRTCall* opRTCall = (LIR_OpRTCall*)op;
 761 
 762       // only visit register parameters
 763       int n = opRTCall->_arguments->length();
 764       for (int i = 0; i < n; i++) {
 765         if (!opRTCall->_arguments->at(i)->is_pointer()) {
 766           do_input(*opRTCall->_arguments->adr_at(i));
 767         }
 768       }
 769       if (opRTCall->_info)                     do_info(opRTCall->_info);
 770       if (opRTCall->_tmp->is_valid())          do_temp(opRTCall->_tmp);
 771       do_call();
 772       if (opRTCall->_result->is_valid())       do_output(opRTCall->_result);
 773 
 774       break;
 775     }
 776 
 777 
 778 // LIR_OpArrayCopy
 779     case lir_arraycopy: {
 780       assert(op->as_OpArrayCopy() != NULL, "must be");
 781       LIR_OpArrayCopy* opArrayCopy = (LIR_OpArrayCopy*)op;
 782 
 783       assert(opArrayCopy->_result->is_illegal(), "unused");
 784       assert(opArrayCopy->_src->is_valid(), "used");          do_input(opArrayCopy->_src);     do_temp(opArrayCopy->_src);
 785       assert(opArrayCopy->_src_pos->is_valid(), "used");      do_input(opArrayCopy->_src_pos); do_temp(opArrayCopy->_src_pos);
 786       assert(opArrayCopy->_dst->is_valid(), "used");          do_input(opArrayCopy->_dst);     do_temp(opArrayCopy->_dst);
 787       assert(opArrayCopy->_dst_pos->is_valid(), "used");      do_input(opArrayCopy->_dst_pos); do_temp(opArrayCopy->_dst_pos);
 788       assert(opArrayCopy->_length->is_valid(), "used");       do_input(opArrayCopy->_length);  do_temp(opArrayCopy->_length);
 789       assert(opArrayCopy->_tmp->is_valid(), "used");          do_temp(opArrayCopy->_tmp);
 790       if (opArrayCopy->_info)                     do_info(opArrayCopy->_info);
 791 
 792       // the implementation of arraycopy always has a call into the runtime
 793       do_call();
 794 
 795       break;
 796     }
 797 
 798 
 799 // LIR_OpUpdateCRC32
 800     case lir_updatecrc32: {
 801       assert(op->as_OpUpdateCRC32() != NULL, "must be");
 802       LIR_OpUpdateCRC32* opUp = (LIR_OpUpdateCRC32*)op;
 803 
 804       assert(opUp->_crc->is_valid(), "used");          do_input(opUp->_crc);     do_temp(opUp->_crc);
 805       assert(opUp->_val->is_valid(), "used");          do_input(opUp->_val);     do_temp(opUp->_val);
 806       assert(opUp->_result->is_valid(), "used");       do_output(opUp->_result);
 807       assert(opUp->_info == NULL, "no info for LIR_OpUpdateCRC32");
 808 
 809       break;
 810     }
 811 
 812 
 813 // LIR_OpLock
 814     case lir_lock:
 815     case lir_unlock: {
 816       assert(op->as_OpLock() != NULL, "must be");
 817       LIR_OpLock* opLock = (LIR_OpLock*)op;
 818 
 819       if (opLock->_info)                          do_info(opLock->_info);
 820 
 821       // TODO: check if these operands really have to be temp
 822       // (or if input is sufficient). This may have influence on the oop map!
 823       assert(opLock->_lock->is_valid(), "used");  do_temp(opLock->_lock);
 824       assert(opLock->_hdr->is_valid(),  "used");  do_temp(opLock->_hdr);
 825       assert(opLock->_obj->is_valid(),  "used");  do_temp(opLock->_obj);
 826 
 827       if (opLock->_scratch->is_valid())           do_temp(opLock->_scratch);
 828       assert(opLock->_result->is_illegal(), "unused");
 829 
 830       do_stub(opLock->_stub);
 831 
 832       break;
 833     }
 834 
 835 
 836 // LIR_OpDelay
 837     case lir_delay_slot: {
 838       assert(op->as_OpDelay() != NULL, "must be");
 839       LIR_OpDelay* opDelay = (LIR_OpDelay*)op;
 840 
 841       visit(opDelay->delay_op());
 842       break;
 843     }
 844 
 845 // LIR_OpTypeCheck
 846     case lir_instanceof:
 847     case lir_checkcast:
 848     case lir_store_check: {
 849       assert(op->as_OpTypeCheck() != NULL, "must be");
 850       LIR_OpTypeCheck* opTypeCheck = (LIR_OpTypeCheck*)op;
 851 
 852       if (opTypeCheck->_info_for_exception)       do_info(opTypeCheck->_info_for_exception);
 853       if (opTypeCheck->_info_for_patch)           do_info(opTypeCheck->_info_for_patch);
 854       if (opTypeCheck->_object->is_valid())       do_input(opTypeCheck->_object);
 855       if (op->code() == lir_store_check && opTypeCheck->_object->is_valid()) {
 856         do_temp(opTypeCheck->_object);
 857       }
 858       if (opTypeCheck->_array->is_valid())        do_input(opTypeCheck->_array);
 859       if (opTypeCheck->_tmp1->is_valid())         do_temp(opTypeCheck->_tmp1);
 860       if (opTypeCheck->_tmp2->is_valid())         do_temp(opTypeCheck->_tmp2);
 861       if (opTypeCheck->_tmp3->is_valid())         do_temp(opTypeCheck->_tmp3);
 862       if (opTypeCheck->_result->is_valid())       do_output(opTypeCheck->_result);
 863                                                   do_stub(opTypeCheck->_stub);
 864       break;
 865     }
 866 
 867 // LIR_OpCompareAndSwap
 868     case lir_cas_long:
 869     case lir_cas_obj:
 870     case lir_cas_int: {
 871       assert(op->as_OpCompareAndSwap() != NULL, "must be");
 872       LIR_OpCompareAndSwap* opCompareAndSwap = (LIR_OpCompareAndSwap*)op;
 873 
 874       assert(opCompareAndSwap->_addr->is_valid(),      "used");
 875       assert(opCompareAndSwap->_cmp_value->is_valid(), "used");
 876       assert(opCompareAndSwap->_new_value->is_valid(), "used");
 877       if (opCompareAndSwap->_info)                    do_info(opCompareAndSwap->_info);
 878                                                       do_input(opCompareAndSwap->_addr);
 879                                                       do_temp(opCompareAndSwap->_addr);
 880                                                       do_input(opCompareAndSwap->_cmp_value);
 881                                                       do_temp(opCompareAndSwap->_cmp_value);
 882                                                       do_input(opCompareAndSwap->_new_value);
 883                                                       do_temp(opCompareAndSwap->_new_value);
 884       if (opCompareAndSwap->_tmp1->is_valid())        do_temp(opCompareAndSwap->_tmp1);
 885       if (opCompareAndSwap->_tmp2->is_valid())        do_temp(opCompareAndSwap->_tmp2);
 886       if (opCompareAndSwap->_result->is_valid())      do_output(opCompareAndSwap->_result);
 887 
 888       break;
 889     }
 890 
 891 
 892 // LIR_OpAllocArray;
 893     case lir_alloc_array: {
 894       assert(op->as_OpAllocArray() != NULL, "must be");
 895       LIR_OpAllocArray* opAllocArray = (LIR_OpAllocArray*)op;
 896 
 897       if (opAllocArray->_info)                        do_info(opAllocArray->_info);
 898       if (opAllocArray->_klass->is_valid())           do_input(opAllocArray->_klass); do_temp(opAllocArray->_klass);
 899       if (opAllocArray->_len->is_valid())             do_input(opAllocArray->_len);   do_temp(opAllocArray->_len);
 900       if (opAllocArray->_tmp1->is_valid())            do_temp(opAllocArray->_tmp1);
 901       if (opAllocArray->_tmp2->is_valid())            do_temp(opAllocArray->_tmp2);
 902       if (opAllocArray->_tmp3->is_valid())            do_temp(opAllocArray->_tmp3);
 903       if (opAllocArray->_tmp4->is_valid())            do_temp(opAllocArray->_tmp4);
 904       if (opAllocArray->_result->is_valid())          do_output(opAllocArray->_result);
 905                                                       do_stub(opAllocArray->_stub);
 906       break;
 907     }
 908 
 909 // LIR_OpProfileCall:
 910     case lir_profile_call: {
 911       assert(op->as_OpProfileCall() != NULL, "must be");
 912       LIR_OpProfileCall* opProfileCall = (LIR_OpProfileCall*)op;
 913 
 914       if (opProfileCall->_recv->is_valid())              do_temp(opProfileCall->_recv);
 915       assert(opProfileCall->_mdo->is_valid(), "used");   do_temp(opProfileCall->_mdo);
 916       assert(opProfileCall->_tmp1->is_valid(), "used");  do_temp(opProfileCall->_tmp1);
 917       break;
 918     }
 919 
 920 // LIR_OpProfileType:
 921     case lir_profile_type: {
 922       assert(op->as_OpProfileType() != NULL, "must be");
 923       LIR_OpProfileType* opProfileType = (LIR_OpProfileType*)op;
 924 
 925       do_input(opProfileType->_mdp); do_temp(opProfileType->_mdp);
 926       do_input(opProfileType->_obj);
 927       do_temp(opProfileType->_tmp);
 928       break;
 929     }
 930   default:
 931     op->visit(this);
 932   }
 933 }
 934 
 935 void LIR_Op::visit(LIR_OpVisitState* state) {
 936   ShouldNotReachHere();
 937 }
 938 
 939 void LIR_OpVisitState::do_stub(CodeStub* stub) {
 940   if (stub != NULL) {
 941     stub->visit(this);
 942   }
 943 }
 944 
 945 XHandlers* LIR_OpVisitState::all_xhandler() {
 946   XHandlers* result = NULL;
 947 
 948   int i;
 949   for (i = 0; i < info_count(); i++) {
 950     if (info_at(i)->exception_handlers() != NULL) {
 951       result = info_at(i)->exception_handlers();
 952       break;
 953     }
 954   }
 955 
 956 #ifdef ASSERT
 957   for (i = 0; i < info_count(); i++) {
 958     assert(info_at(i)->exception_handlers() == NULL ||
 959            info_at(i)->exception_handlers() == result,
 960            "only one xhandler list allowed per LIR-operation");
 961   }
 962 #endif
 963 
 964   if (result != NULL) {
 965     return result;
 966   } else {
 967     return new XHandlers();
 968   }
 969 
 970   return result;
 971 }
 972 
 973 
 974 #ifdef ASSERT
 975 bool LIR_OpVisitState::no_operands(LIR_Op* op) {
 976   visit(op);
 977 
 978   return opr_count(inputMode) == 0 &&
 979          opr_count(outputMode) == 0 &&
 980          opr_count(tempMode) == 0 &&
 981          info_count() == 0 &&
 982          !has_call() &&
 983          !has_slow_case();
 984 }
 985 #endif
 986 
 987 //---------------------------------------------------
 988 
 989 
 990 void LIR_OpJavaCall::emit_code(LIR_Assembler* masm) {
 991   masm->emit_call(this);
 992 }
 993 
 994 void LIR_OpRTCall::emit_code(LIR_Assembler* masm) {
 995   masm->emit_rtcall(this);
 996 }
 997 
 998 void LIR_OpLabel::emit_code(LIR_Assembler* masm) {
 999   masm->emit_opLabel(this);
1000 }
1001 
1002 void LIR_OpArrayCopy::emit_code(LIR_Assembler* masm) {
1003   masm->emit_arraycopy(this);
1004   masm->append_code_stub(stub());
1005 }
1006 
1007 void LIR_OpUpdateCRC32::emit_code(LIR_Assembler* masm) {
1008   masm->emit_updatecrc32(this);
1009 }
1010 
1011 void LIR_Op0::emit_code(LIR_Assembler* masm) {
1012   masm->emit_op0(this);
1013 }
1014 
1015 void LIR_Op1::emit_code(LIR_Assembler* masm) {
1016   masm->emit_op1(this);
1017 }
1018 
1019 void LIR_OpAllocObj::emit_code(LIR_Assembler* masm) {
1020   masm->emit_alloc_obj(this);
1021   masm->append_code_stub(stub());
1022 }
1023 
1024 void LIR_OpBranch::emit_code(LIR_Assembler* masm) {
1025   masm->emit_opBranch(this);
1026   if (stub()) {
1027     masm->append_code_stub(stub());
1028   }
1029 }
1030 
1031 void LIR_OpConvert::emit_code(LIR_Assembler* masm) {
1032   masm->emit_opConvert(this);
1033   if (stub() != NULL) {
1034     masm->append_code_stub(stub());
1035   }
1036 }
1037 
1038 void LIR_Op2::emit_code(LIR_Assembler* masm) {
1039   masm->emit_op2(this);
1040 }
1041 
1042 void LIR_OpAllocArray::emit_code(LIR_Assembler* masm) {
1043   masm->emit_alloc_array(this);
1044   masm->append_code_stub(stub());
1045 }
1046 
1047 void LIR_OpTypeCheck::emit_code(LIR_Assembler* masm) {
1048   masm->emit_opTypeCheck(this);
1049   if (stub()) {
1050     masm->append_code_stub(stub());
1051   }
1052 }
1053 
1054 void LIR_OpCompareAndSwap::emit_code(LIR_Assembler* masm) {
1055   masm->emit_compare_and_swap(this);
1056 }
1057 
1058 void LIR_Op3::emit_code(LIR_Assembler* masm) {
1059   masm->emit_op3(this);
1060 }
1061 
1062 void LIR_OpLock::emit_code(LIR_Assembler* masm) {
1063   masm->emit_lock(this);
1064   if (stub()) {
1065     masm->append_code_stub(stub());
1066   }
1067 }
1068 
1069 #ifdef ASSERT
1070 void LIR_OpAssert::emit_code(LIR_Assembler* masm) {
1071   masm->emit_assert(this);
1072 }
1073 #endif
1074 
1075 void LIR_OpDelay::emit_code(LIR_Assembler* masm) {
1076   masm->emit_delay(this);
1077 }
1078 
1079 void LIR_OpProfileCall::emit_code(LIR_Assembler* masm) {
1080   masm->emit_profile_call(this);
1081 }
1082 
1083 void LIR_OpProfileType::emit_code(LIR_Assembler* masm) {
1084   masm->emit_profile_type(this);
1085 }
1086 
1087 // LIR_List
1088 LIR_List::LIR_List(Compilation* compilation, BlockBegin* block)
1089   : _operations(8)
1090   , _compilation(compilation)
1091 #ifndef PRODUCT
1092   , _block(block)
1093 #endif
1094 #ifdef ASSERT
1095   , _file(NULL)
1096   , _line(0)
1097 #endif
1098 { }
1099 
1100 
1101 #ifdef ASSERT
1102 void LIR_List::set_file_and_line(const char * file, int line) {
1103   const char * f = strrchr(file, '/');
1104   if (f == NULL) f = strrchr(file, '\\');
1105   if (f == NULL) {
1106     f = file;
1107   } else {
1108     f++;
1109   }
1110   _file = f;
1111   _line = line;
1112 }
1113 #endif
1114 
1115 
1116 void LIR_List::append(LIR_InsertionBuffer* buffer) {
1117   assert(this == buffer->lir_list(), "wrong lir list");
1118   const int n = _operations.length();
1119 
1120   if (buffer->number_of_ops() > 0) {
1121     // increase size of instructions list
1122     _operations.at_grow(n + buffer->number_of_ops() - 1, NULL);
1123     // insert ops from buffer into instructions list
1124     int op_index = buffer->number_of_ops() - 1;
1125     int ip_index = buffer->number_of_insertion_points() - 1;
1126     int from_index = n - 1;
1127     int to_index = _operations.length() - 1;
1128     for (; ip_index >= 0; ip_index --) {
1129       int index = buffer->index_at(ip_index);
1130       // make room after insertion point
1131       while (index < from_index) {
1132         _operations.at_put(to_index --, _operations.at(from_index --));
1133       }
1134       // insert ops from buffer
1135       for (int i = buffer->count_at(ip_index); i > 0; i --) {
1136         _operations.at_put(to_index --, buffer->op_at(op_index --));
1137       }
1138     }
1139   }
1140 
1141   buffer->finish();
1142 }
1143 
1144 
1145 void LIR_List::oop2reg_patch(jobject o, LIR_Opr reg, CodeEmitInfo* info) {
1146   assert(reg->type() == T_OBJECT, "bad reg");
1147   append(new LIR_Op1(lir_move, LIR_OprFact::oopConst(o),  reg, T_OBJECT, lir_patch_normal, info));
1148 }
1149 
1150 void LIR_List::klass2reg_patch(Metadata* o, LIR_Opr reg, CodeEmitInfo* info) {
1151   assert(reg->type() == T_METADATA, "bad reg");
1152   append(new LIR_Op1(lir_move, LIR_OprFact::metadataConst(o), reg, T_METADATA, lir_patch_normal, info));
1153 }
1154 
1155 void LIR_List::load(LIR_Address* addr, LIR_Opr src, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1156   append(new LIR_Op1(
1157             lir_move,
1158             LIR_OprFact::address(addr),
1159             src,
1160             addr->type(),
1161             patch_code,
1162             info));
1163 }
1164 
1165 
1166 void LIR_List::volatile_load_mem_reg(LIR_Address* address, LIR_Opr dst, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1167   append(new LIR_Op1(
1168             lir_move,
1169             LIR_OprFact::address(address),
1170             dst,
1171             address->type(),
1172             patch_code,
1173             info, lir_move_volatile));
1174 }
1175 
1176 void LIR_List::volatile_load_unsafe_reg(LIR_Opr base, LIR_Opr offset, LIR_Opr dst, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1177   append(new LIR_Op1(
1178             lir_move,
1179             LIR_OprFact::address(new LIR_Address(base, offset, type)),
1180             dst,
1181             type,
1182             patch_code,
1183             info, lir_move_volatile));
1184 }
1185 
1186 
1187 void LIR_List::store_mem_int(jint v, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1188   append(new LIR_Op1(
1189             lir_move,
1190             LIR_OprFact::intConst(v),
1191             LIR_OprFact::address(new LIR_Address(base, offset_in_bytes, type)),
1192             type,
1193             patch_code,
1194             info));
1195 }
1196 
1197 
1198 void LIR_List::store_mem_oop(jobject o, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1199   append(new LIR_Op1(
1200             lir_move,
1201             LIR_OprFact::oopConst(o),
1202             LIR_OprFact::address(new LIR_Address(base, offset_in_bytes, type)),
1203             type,
1204             patch_code,
1205             info));
1206 }
1207 
1208 
1209 void LIR_List::store(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1210   append(new LIR_Op1(
1211             lir_move,
1212             src,
1213             LIR_OprFact::address(addr),
1214             addr->type(),
1215             patch_code,
1216             info));
1217 }
1218 
1219 
1220 void LIR_List::volatile_store_mem_reg(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1221   append(new LIR_Op1(
1222             lir_move,
1223             src,
1224             LIR_OprFact::address(addr),
1225             addr->type(),
1226             patch_code,
1227             info,
1228             lir_move_volatile));
1229 }
1230 
1231 void LIR_List::volatile_store_unsafe_reg(LIR_Opr src, LIR_Opr base, LIR_Opr offset, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1232   append(new LIR_Op1(
1233             lir_move,
1234             src,
1235             LIR_OprFact::address(new LIR_Address(base, offset, type)),
1236             type,
1237             patch_code,
1238             info, lir_move_volatile));
1239 }
1240 
1241 
1242 void LIR_List::idiv(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1243   append(new LIR_Op3(
1244                     lir_idiv,
1245                     left,
1246                     right,
1247                     tmp,
1248                     res,
1249                     info));
1250 }
1251 
1252 
1253 void LIR_List::idiv(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1254   append(new LIR_Op3(
1255                     lir_idiv,
1256                     left,
1257                     LIR_OprFact::intConst(right),
1258                     tmp,
1259                     res,
1260                     info));
1261 }
1262 
1263 
1264 void LIR_List::irem(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1265   append(new LIR_Op3(
1266                     lir_irem,
1267                     left,
1268                     right,
1269                     tmp,
1270                     res,
1271                     info));
1272 }
1273 
1274 
1275 void LIR_List::irem(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1276   append(new LIR_Op3(
1277                     lir_irem,
1278                     left,
1279                     LIR_OprFact::intConst(right),
1280                     tmp,
1281                     res,
1282                     info));
1283 }
1284 
1285 
1286 void LIR_List::cmp_mem_int(LIR_Condition condition, LIR_Opr base, int disp, int c, CodeEmitInfo* info) {
1287   append(new LIR_Op2(
1288                     lir_cmp,
1289                     condition,
1290                     LIR_OprFact::address(new LIR_Address(base, disp, T_INT)),
1291                     LIR_OprFact::intConst(c),
1292                     info));
1293 }
1294 
1295 
1296 void LIR_List::cmp_reg_mem(LIR_Condition condition, LIR_Opr reg, LIR_Address* addr, CodeEmitInfo* info) {
1297   append(new LIR_Op2(
1298                     lir_cmp,
1299                     condition,
1300                     reg,
1301                     LIR_OprFact::address(addr),
1302                     info));
1303 }
1304 
1305 void LIR_List::allocate_object(LIR_Opr dst, LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4,
1306                                int header_size, int object_size, LIR_Opr klass, bool init_check, CodeStub* stub) {
1307   append(new LIR_OpAllocObj(
1308                            klass,
1309                            dst,
1310                            t1,
1311                            t2,
1312                            t3,
1313                            t4,
1314                            header_size,
1315                            object_size,
1316                            init_check,
1317                            stub));
1318 }
1319 
1320 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) {
1321   append(new LIR_OpAllocArray(
1322                            klass,
1323                            len,
1324                            dst,
1325                            t1,
1326                            t2,
1327                            t3,
1328                            t4,
1329                            type,
1330                            stub));
1331 }
1332 
1333 void LIR_List::shift_left(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1334  append(new LIR_Op2(
1335                     lir_shl,
1336                     value,
1337                     count,
1338                     dst,
1339                     tmp));
1340 }
1341 
1342 void LIR_List::shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1343  append(new LIR_Op2(
1344                     lir_shr,
1345                     value,
1346                     count,
1347                     dst,
1348                     tmp));
1349 }
1350 
1351 
1352 void LIR_List::unsigned_shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1353  append(new LIR_Op2(
1354                     lir_ushr,
1355                     value,
1356                     count,
1357                     dst,
1358                     tmp));
1359 }
1360 
1361 void LIR_List::fcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst, bool is_unordered_less) {
1362   append(new LIR_Op2(is_unordered_less ? lir_ucmp_fd2i : lir_cmp_fd2i,
1363                      left,
1364                      right,
1365                      dst));
1366 }
1367 
1368 void LIR_List::lock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info) {
1369   append(new LIR_OpLock(
1370                     lir_lock,
1371                     hdr,
1372                     obj,
1373                     lock,
1374                     scratch,
1375                     stub,
1376                     info));
1377 }
1378 
1379 void LIR_List::unlock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub) {
1380   append(new LIR_OpLock(
1381                     lir_unlock,
1382                     hdr,
1383                     obj,
1384                     lock,
1385                     scratch,
1386                     stub,
1387                     NULL));
1388 }
1389 
1390 
1391 void check_LIR() {
1392   // cannot do the proper checking as PRODUCT and other modes return different results
1393   // guarantee(sizeof(LIR_OprDesc) == wordSize, "may not have a v-table");
1394 }
1395 
1396 
1397 
1398 void LIR_List::checkcast (LIR_Opr result, LIR_Opr object, ciKlass* klass,
1399                           LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
1400                           CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub,
1401                           ciMethod* profiled_method, int profiled_bci) {
1402   LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_checkcast, result, object, klass,
1403                                            tmp1, tmp2, tmp3, fast_check, info_for_exception, info_for_patch, stub);
1404   if (profiled_method != NULL) {
1405     c->set_profiled_method(profiled_method);
1406     c->set_profiled_bci(profiled_bci);
1407     c->set_should_profile(true);
1408   }
1409   append(c);
1410 }
1411 
1412 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) {
1413   LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_instanceof, result, object, klass, tmp1, tmp2, tmp3, fast_check, NULL, info_for_patch, NULL);
1414   if (profiled_method != NULL) {
1415     c->set_profiled_method(profiled_method);
1416     c->set_profiled_bci(profiled_bci);
1417     c->set_should_profile(true);
1418   }
1419   append(c);
1420 }
1421 
1422 
1423 void LIR_List::store_check(LIR_Opr object, LIR_Opr array, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3,
1424                            CodeEmitInfo* info_for_exception, ciMethod* profiled_method, int profiled_bci) {
1425   LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_store_check, object, array, tmp1, tmp2, tmp3, info_for_exception);
1426   if (profiled_method != NULL) {
1427     c->set_profiled_method(profiled_method);
1428     c->set_profiled_bci(profiled_bci);
1429     c->set_should_profile(true);
1430   }
1431   append(c);
1432 }
1433 
1434 void LIR_List::null_check(LIR_Opr opr, CodeEmitInfo* info, bool deoptimize_on_null) {
1435   if (deoptimize_on_null) {
1436     // Emit an explicit null check and deoptimize if opr is null
1437     CodeStub* deopt = new DeoptimizeStub(info, Deoptimization::Reason_null_check, Deoptimization::Action_none);
1438     cmp(lir_cond_equal, opr, LIR_OprFact::oopConst(NULL));
1439     branch(lir_cond_equal, T_OBJECT, deopt);
1440   } else {
1441     // Emit an implicit null check
1442     append(new LIR_Op1(lir_null_check, opr, info));
1443   }
1444 }
1445 
1446 void LIR_List::cas_long(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1447                         LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1448   append(new LIR_OpCompareAndSwap(lir_cas_long, addr, cmp_value, new_value, t1, t2, result));
1449 }
1450 
1451 void LIR_List::cas_obj(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1452                        LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1453   append(new LIR_OpCompareAndSwap(lir_cas_obj, addr, cmp_value, new_value, t1, t2, result));
1454 }
1455 
1456 void LIR_List::cas_int(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1457                        LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1458   append(new LIR_OpCompareAndSwap(lir_cas_int, addr, cmp_value, new_value, t1, t2, result));
1459 }
1460 
1461 
1462 #ifdef PRODUCT
1463 
1464 void print_LIR(BlockList* blocks) {
1465 }
1466 
1467 #else
1468 // LIR_OprDesc
1469 void LIR_OprDesc::print() const {
1470   print(tty);
1471 }
1472 
1473 void LIR_OprDesc::print(outputStream* out) const {
1474   if (is_illegal()) {
1475     return;
1476   }
1477 
1478   out->print("[");
1479   if (is_pointer()) {
1480     pointer()->print_value_on(out);
1481   } else if (is_single_stack()) {
1482     out->print("stack:%d", single_stack_ix());
1483   } else if (is_double_stack()) {
1484     out->print("dbl_stack:%d",double_stack_ix());
1485   } else if (is_virtual()) {
1486     out->print("R%d", vreg_number());
1487   } else if (is_single_cpu()) {
1488     out->print("%s", as_register()->name());
1489   } else if (is_double_cpu()) {
1490     out->print("%s", as_register_hi()->name());
1491     out->print("%s", as_register_lo()->name());
1492 #if defined(X86)
1493   } else if (is_single_xmm()) {
1494     out->print("%s", as_xmm_float_reg()->name());
1495   } else if (is_double_xmm()) {
1496     out->print("%s", as_xmm_double_reg()->name());
1497   } else if (is_single_fpu()) {
1498     out->print("fpu%d", fpu_regnr());
1499   } else if (is_double_fpu()) {
1500     out->print("fpu%d", fpu_regnrLo());
1501 #elif defined(AARCH64)
1502   } else if (is_single_fpu()) {
1503     out->print("fpu%d", fpu_regnr());
1504   } else if (is_double_fpu()) {
1505     out->print("fpu%d", fpu_regnrLo());
1506 #elif defined(ARM)
1507   } else if (is_single_fpu()) {
1508     out->print("s%d", fpu_regnr());
1509   } else if (is_double_fpu()) {
1510     out->print("d%d", fpu_regnrLo() >> 1);
1511 #else
1512   } else if (is_single_fpu()) {
1513     out->print("%s", as_float_reg()->name());
1514   } else if (is_double_fpu()) {
1515     out->print("%s", as_double_reg()->name());
1516 #endif
1517 
1518   } else if (is_illegal()) {
1519     out->print("-");
1520   } else {
1521     out->print("Unknown Operand");
1522   }
1523   if (!is_illegal()) {
1524     out->print("|%c", type_char());
1525   }
1526   if (is_register() && is_last_use()) {
1527     out->print("(last_use)");
1528   }
1529   out->print("]");
1530 }
1531 
1532 
1533 // LIR_Address
1534 void LIR_Const::print_value_on(outputStream* out) const {
1535   switch (type()) {
1536     case T_ADDRESS:out->print("address:%d",as_jint());          break;
1537     case T_INT:    out->print("int:%d",   as_jint());           break;
1538     case T_LONG:   out->print("lng:" JLONG_FORMAT, as_jlong()); break;
1539     case T_FLOAT:  out->print("flt:%f",   as_jfloat());         break;
1540     case T_DOUBLE: out->print("dbl:%f",   as_jdouble());        break;
1541     case T_OBJECT: out->print("obj:" INTPTR_FORMAT, p2i(as_jobject()));        break;
1542     case T_METADATA: out->print("metadata:" INTPTR_FORMAT, p2i(as_metadata()));break;
1543     default:       out->print("%3d:0x" UINT64_FORMAT_X, type(), (uint64_t)as_jlong()); break;
1544   }
1545 }
1546 
1547 // LIR_Address
1548 void LIR_Address::print_value_on(outputStream* out) const {
1549   out->print("Base:"); _base->print(out);
1550   if (!_index->is_illegal()) {
1551     out->print(" Index:"); _index->print(out);
1552     switch (scale()) {
1553     case times_1: break;
1554     case times_2: out->print(" * 2"); break;
1555     case times_4: out->print(" * 4"); break;
1556     case times_8: out->print(" * 8"); break;
1557     }
1558   }
1559   out->print(" Disp: " INTX_FORMAT, _disp);
1560 }
1561 
1562 // debug output of block header without InstructionPrinter
1563 //       (because phi functions are not necessary for LIR)
1564 static void print_block(BlockBegin* x) {
1565   // print block id
1566   BlockEnd* end = x->end();
1567   tty->print("B%d ", x->block_id());
1568 
1569   // print flags
1570   if (x->is_set(BlockBegin::std_entry_flag))               tty->print("std ");
1571   if (x->is_set(BlockBegin::osr_entry_flag))               tty->print("osr ");
1572   if (x->is_set(BlockBegin::exception_entry_flag))         tty->print("ex ");
1573   if (x->is_set(BlockBegin::subroutine_entry_flag))        tty->print("jsr ");
1574   if (x->is_set(BlockBegin::backward_branch_target_flag))  tty->print("bb ");
1575   if (x->is_set(BlockBegin::linear_scan_loop_header_flag)) tty->print("lh ");
1576   if (x->is_set(BlockBegin::linear_scan_loop_end_flag))    tty->print("le ");
1577 
1578   // print block bci range
1579   tty->print("[%d, %d] ", x->bci(), (end == NULL ? -1 : end->printable_bci()));
1580 
1581   // print predecessors and successors
1582   if (x->number_of_preds() > 0) {
1583     tty->print("preds: ");
1584     for (int i = 0; i < x->number_of_preds(); i ++) {
1585       tty->print("B%d ", x->pred_at(i)->block_id());
1586     }
1587   }
1588 
1589   if (x->number_of_sux() > 0) {
1590     tty->print("sux: ");
1591     for (int i = 0; i < x->number_of_sux(); i ++) {
1592       tty->print("B%d ", x->sux_at(i)->block_id());
1593     }
1594   }
1595 
1596   // print exception handlers
1597   if (x->number_of_exception_handlers() > 0) {
1598     tty->print("xhandler: ");
1599     for (int i = 0; i < x->number_of_exception_handlers();  i++) {
1600       tty->print("B%d ", x->exception_handler_at(i)->block_id());
1601     }
1602   }
1603 
1604   tty->cr();
1605 }
1606 
1607 void print_LIR(BlockList* blocks) {
1608   tty->print_cr("LIR:");
1609   int i;
1610   for (i = 0; i < blocks->length(); i++) {
1611     BlockBegin* bb = blocks->at(i);
1612     print_block(bb);
1613     tty->print("__id_Instruction___________________________________________"); tty->cr();
1614     bb->lir()->print_instructions();
1615   }
1616 }
1617 
1618 void LIR_List::print_instructions() {
1619   for (int i = 0; i < _operations.length(); i++) {
1620     _operations.at(i)->print(); tty->cr();
1621   }
1622   tty->cr();
1623 }
1624 
1625 // LIR_Ops printing routines
1626 // LIR_Op
1627 void LIR_Op::print_on(outputStream* out) const {
1628   if (id() != -1 || PrintCFGToFile) {
1629     out->print("%4d ", id());
1630   } else {
1631     out->print("     ");
1632   }
1633   out->print("%s ", name());
1634   print_instr(out);
1635   if (info() != NULL) out->print(" [bci:%d]", info()->stack()->bci());
1636 #ifdef ASSERT
1637   if (Verbose && _file != NULL) {
1638     out->print(" (%s:%d)", _file, _line);
1639   }
1640 #endif
1641 }
1642 
1643 const char * LIR_Op::name() const {
1644   const char* s = NULL;
1645   switch(code()) {
1646      // LIR_Op0
1647      case lir_membar:                s = "membar";        break;
1648      case lir_membar_acquire:        s = "membar_acquire"; break;
1649      case lir_membar_release:        s = "membar_release"; break;
1650      case lir_membar_loadload:       s = "membar_loadload";   break;
1651      case lir_membar_storestore:     s = "membar_storestore"; break;
1652      case lir_membar_loadstore:      s = "membar_loadstore";  break;
1653      case lir_membar_storeload:      s = "membar_storeload";  break;
1654      case lir_word_align:            s = "word_align";    break;
1655      case lir_label:                 s = "label";         break;
1656      case lir_nop:                   s = "nop";           break;
1657      case lir_on_spin_wait:          s = "on_spin_wait";  break;
1658      case lir_backwardbranch_target: s = "backbranch";    break;
1659      case lir_std_entry:             s = "std_entry";     break;
1660      case lir_osr_entry:             s = "osr_entry";     break;
1661      case lir_build_frame:           s = "build_frm";     break;
1662      case lir_fpop_raw:              s = "fpop_raw";      break;
1663      case lir_24bit_FPU:             s = "24bit_FPU";     break;
1664      case lir_reset_FPU:             s = "reset_FPU";     break;
1665      case lir_breakpoint:            s = "breakpoint";    break;
1666      case lir_get_thread:            s = "get_thread";    break;
1667      // LIR_Op1
1668      case lir_fxch:                  s = "fxch";          break;
1669      case lir_fld:                   s = "fld";           break;
1670      case lir_ffree:                 s = "ffree";         break;
1671      case lir_push:                  s = "push";          break;
1672      case lir_pop:                   s = "pop";           break;
1673      case lir_null_check:            s = "null_check";    break;
1674      case lir_return:                s = "return";        break;
1675      case lir_safepoint:             s = "safepoint";     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_neg:                   s = "neg";           break;
1706      case lir_sqrt:                  s = "sqrt";          break;
1707      case lir_logic_and:             s = "logic_and";     break;
1708      case lir_logic_or:              s = "logic_or";      break;
1709      case lir_logic_xor:             s = "logic_xor";     break;
1710      case lir_shl:                   s = "shift_left";    break;
1711      case lir_shr:                   s = "shift_right";   break;
1712      case lir_ushr:                  s = "ushift_right";  break;
1713      case lir_alloc_array:           s = "alloc_array";   break;
1714      case lir_xadd:                  s = "xadd";          break;
1715      case lir_xchg:                  s = "xchg";          break;
1716      // LIR_Op3
1717      case lir_idiv:                  s = "idiv";          break;
1718      case lir_irem:                  s = "irem";          break;
1719      case lir_fmad:                  s = "fmad";          break;
1720      case lir_fmaf:                  s = "fmaf";          break;
1721      // LIR_OpJavaCall
1722      case lir_static_call:           s = "static";        break;
1723      case lir_optvirtual_call:       s = "optvirtual";    break;
1724      case lir_icvirtual_call:        s = "icvirtual";     break;
1725      case lir_virtual_call:          s = "virtual";       break;
1726      case lir_dynamic_call:          s = "dynamic";       break;
1727      // LIR_OpArrayCopy
1728      case lir_arraycopy:             s = "arraycopy";     break;
1729      // LIR_OpUpdateCRC32
1730      case lir_updatecrc32:           s = "updatecrc32";   break;
1731      // LIR_OpLock
1732      case lir_lock:                  s = "lock";          break;
1733      case lir_unlock:                s = "unlock";        break;
1734      // LIR_OpDelay
1735      case lir_delay_slot:            s = "delay";         break;
1736      // LIR_OpTypeCheck
1737      case lir_instanceof:            s = "instanceof";    break;
1738      case lir_checkcast:             s = "checkcast";     break;
1739      case lir_store_check:           s = "store_check";   break;
1740      // LIR_OpCompareAndSwap
1741      case lir_cas_long:              s = "cas_long";      break;
1742      case lir_cas_obj:               s = "cas_obj";      break;
1743      case lir_cas_int:               s = "cas_int";      break;
1744      // LIR_OpProfileCall
1745      case lir_profile_call:          s = "profile_call";  break;
1746      // LIR_OpProfileType
1747      case lir_profile_type:          s = "profile_type";  break;
1748      // LIR_OpAssert
1749 #ifdef ASSERT
1750      case lir_assert:                s = "assert";        break;
1751 #endif
1752      case lir_none:                  ShouldNotReachHere();break;
1753     default:                         s = "illegal_op";    break;
1754   }
1755   return s;
1756 }
1757 
1758 // LIR_OpJavaCall
1759 void LIR_OpJavaCall::print_instr(outputStream* out) const {
1760   out->print("call: ");
1761   out->print("[addr: " INTPTR_FORMAT "]", p2i(address()));
1762   if (receiver()->is_valid()) {
1763     out->print(" [recv: ");   receiver()->print(out);   out->print("]");
1764   }
1765   if (result_opr()->is_valid()) {
1766     out->print(" [result: "); result_opr()->print(out); out->print("]");
1767   }
1768 }
1769 
1770 // LIR_OpLabel
1771 void LIR_OpLabel::print_instr(outputStream* out) const {
1772   out->print("[label:" INTPTR_FORMAT "]", p2i(_label));
1773 }
1774 
1775 // LIR_OpArrayCopy
1776 void LIR_OpArrayCopy::print_instr(outputStream* out) const {
1777   src()->print(out);     out->print(" ");
1778   src_pos()->print(out); out->print(" ");
1779   dst()->print(out);     out->print(" ");
1780   dst_pos()->print(out); out->print(" ");
1781   length()->print(out);  out->print(" ");
1782   tmp()->print(out);     out->print(" ");
1783 }
1784 
1785 // LIR_OpUpdateCRC32
1786 void LIR_OpUpdateCRC32::print_instr(outputStream* out) const {
1787   crc()->print(out);     out->print(" ");
1788   val()->print(out);     out->print(" ");
1789   result_opr()->print(out); out->print(" ");
1790 }
1791 
1792 // LIR_OpCompareAndSwap
1793 void LIR_OpCompareAndSwap::print_instr(outputStream* out) const {
1794   addr()->print(out);      out->print(" ");
1795   cmp_value()->print(out); out->print(" ");
1796   new_value()->print(out); out->print(" ");
1797   tmp1()->print(out);      out->print(" ");
1798   tmp2()->print(out);      out->print(" ");
1799 
1800 }
1801 
1802 // LIR_Op0
1803 void LIR_Op0::print_instr(outputStream* out) const {
1804   result_opr()->print(out);
1805 }
1806 
1807 // LIR_Op1
1808 const char * LIR_Op1::name() const {
1809   if (code() == lir_move) {
1810     switch (move_kind()) {
1811     case lir_move_normal:
1812       return "move";
1813     case lir_move_unaligned:
1814       return "unaligned move";
1815     case lir_move_volatile:
1816       return "volatile_move";
1817     case lir_move_wide:
1818       return "wide_move";
1819     default:
1820       ShouldNotReachHere();
1821     return "illegal_op";
1822     }
1823   } else {
1824     return LIR_Op::name();
1825   }
1826 }
1827 
1828 
1829 void LIR_Op1::print_instr(outputStream* out) const {
1830   _opr->print(out);         out->print(" ");
1831   result_opr()->print(out); out->print(" ");
1832   print_patch_code(out, patch_code());
1833 }
1834 
1835 
1836 // LIR_Op1
1837 void LIR_OpRTCall::print_instr(outputStream* out) const {
1838   intx a = (intx)addr();
1839   out->print("%s", Runtime1::name_for_address(addr()));
1840   out->print(" ");
1841   tmp()->print(out);
1842 }
1843 
1844 void LIR_Op1::print_patch_code(outputStream* out, LIR_PatchCode code) {
1845   switch(code) {
1846     case lir_patch_none:                                 break;
1847     case lir_patch_low:    out->print("[patch_low]");    break;
1848     case lir_patch_high:   out->print("[patch_high]");   break;
1849     case lir_patch_normal: out->print("[patch_normal]"); break;
1850     default: ShouldNotReachHere();
1851   }
1852 }
1853 
1854 // LIR_OpBranch
1855 void LIR_OpBranch::print_instr(outputStream* out) const {
1856   print_condition(out, cond());             out->print(" ");
1857   if (block() != NULL) {
1858     out->print("[B%d] ", block()->block_id());
1859   } else if (stub() != NULL) {
1860     out->print("[");
1861     stub()->print_name(out);
1862     out->print(": " INTPTR_FORMAT "]", p2i(stub()));
1863     if (stub()->info() != NULL) out->print(" [bci:%d]", stub()->info()->stack()->bci());
1864   } else {
1865     out->print("[label:" INTPTR_FORMAT "] ", p2i(label()));
1866   }
1867   if (ublock() != NULL) {
1868     out->print("unordered: [B%d] ", ublock()->block_id());
1869   }
1870 }
1871 
1872 void LIR_Op::print_condition(outputStream* out, LIR_Condition cond) {
1873   switch(cond) {
1874     case lir_cond_equal:           out->print("[EQ]");      break;
1875     case lir_cond_notEqual:        out->print("[NE]");      break;
1876     case lir_cond_less:            out->print("[LT]");      break;
1877     case lir_cond_lessEqual:       out->print("[LE]");      break;
1878     case lir_cond_greaterEqual:    out->print("[GE]");      break;
1879     case lir_cond_greater:         out->print("[GT]");      break;
1880     case lir_cond_belowEqual:      out->print("[BE]");      break;
1881     case lir_cond_aboveEqual:      out->print("[AE]");      break;
1882     case lir_cond_always:          out->print("[AL]");      break;
1883     default:                       out->print("[%d]",cond); break;
1884   }
1885 }
1886 
1887 // LIR_OpConvert
1888 void LIR_OpConvert::print_instr(outputStream* out) const {
1889   print_bytecode(out, bytecode());
1890   in_opr()->print(out);                  out->print(" ");
1891   result_opr()->print(out);              out->print(" ");
1892 #ifdef PPC32
1893   if(tmp1()->is_valid()) {
1894     tmp1()->print(out); out->print(" ");
1895     tmp2()->print(out); out->print(" ");
1896   }
1897 #endif
1898 }
1899 
1900 void LIR_OpConvert::print_bytecode(outputStream* out, Bytecodes::Code code) {
1901   switch(code) {
1902     case Bytecodes::_d2f: out->print("[d2f] "); break;
1903     case Bytecodes::_d2i: out->print("[d2i] "); break;
1904     case Bytecodes::_d2l: out->print("[d2l] "); break;
1905     case Bytecodes::_f2d: out->print("[f2d] "); break;
1906     case Bytecodes::_f2i: out->print("[f2i] "); break;
1907     case Bytecodes::_f2l: out->print("[f2l] "); break;
1908     case Bytecodes::_i2b: out->print("[i2b] "); break;
1909     case Bytecodes::_i2c: out->print("[i2c] "); break;
1910     case Bytecodes::_i2d: out->print("[i2d] "); break;
1911     case Bytecodes::_i2f: out->print("[i2f] "); break;
1912     case Bytecodes::_i2l: out->print("[i2l] "); break;
1913     case Bytecodes::_i2s: out->print("[i2s] "); break;
1914     case Bytecodes::_l2i: out->print("[l2i] "); break;
1915     case Bytecodes::_l2f: out->print("[l2f] "); break;
1916     case Bytecodes::_l2d: out->print("[l2d] "); break;
1917     default:
1918       out->print("[?%d]",code);
1919     break;
1920   }
1921 }
1922 
1923 void LIR_OpAllocObj::print_instr(outputStream* out) const {
1924   klass()->print(out);                      out->print(" ");
1925   obj()->print(out);                        out->print(" ");
1926   tmp1()->print(out);                       out->print(" ");
1927   tmp2()->print(out);                       out->print(" ");
1928   tmp3()->print(out);                       out->print(" ");
1929   tmp4()->print(out);                       out->print(" ");
1930   out->print("[hdr:%d]", header_size()); out->print(" ");
1931   out->print("[obj:%d]", object_size()); out->print(" ");
1932   out->print("[lbl:" INTPTR_FORMAT "]", p2i(stub()->entry()));
1933 }
1934 
1935 void LIR_OpRoundFP::print_instr(outputStream* out) const {
1936   _opr->print(out);         out->print(" ");
1937   tmp()->print(out);        out->print(" ");
1938   result_opr()->print(out); out->print(" ");
1939 }
1940 
1941 // LIR_Op2
1942 void LIR_Op2::print_instr(outputStream* out) const {
1943   if (code() == lir_cmove || code() == lir_cmp) {
1944     print_condition(out, condition());         out->print(" ");
1945   }
1946   in_opr1()->print(out);    out->print(" ");
1947   in_opr2()->print(out);    out->print(" ");
1948   if (tmp1_opr()->is_valid()) { tmp1_opr()->print(out);    out->print(" "); }
1949   if (tmp2_opr()->is_valid()) { tmp2_opr()->print(out);    out->print(" "); }
1950   if (tmp3_opr()->is_valid()) { tmp3_opr()->print(out);    out->print(" "); }
1951   if (tmp4_opr()->is_valid()) { tmp4_opr()->print(out);    out->print(" "); }
1952   if (tmp5_opr()->is_valid()) { tmp5_opr()->print(out);    out->print(" "); }
1953   result_opr()->print(out);
1954 }
1955 
1956 void LIR_OpAllocArray::print_instr(outputStream* out) const {
1957   klass()->print(out);                   out->print(" ");
1958   len()->print(out);                     out->print(" ");
1959   obj()->print(out);                     out->print(" ");
1960   tmp1()->print(out);                    out->print(" ");
1961   tmp2()->print(out);                    out->print(" ");
1962   tmp3()->print(out);                    out->print(" ");
1963   tmp4()->print(out);                    out->print(" ");
1964   out->print("[type:0x%x]", type());     out->print(" ");
1965   out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry()));
1966 }
1967 
1968 
1969 void LIR_OpTypeCheck::print_instr(outputStream* out) const {
1970   object()->print(out);                  out->print(" ");
1971   if (code() == lir_store_check) {
1972     array()->print(out);                 out->print(" ");
1973   }
1974   if (code() != lir_store_check) {
1975     klass()->print_name_on(out);         out->print(" ");
1976     if (fast_check())                 out->print("fast_check ");
1977   }
1978   tmp1()->print(out);                    out->print(" ");
1979   tmp2()->print(out);                    out->print(" ");
1980   tmp3()->print(out);                    out->print(" ");
1981   result_opr()->print(out);              out->print(" ");
1982   if (info_for_exception() != NULL) out->print(" [bci:%d]", info_for_exception()->stack()->bci());
1983 }
1984 
1985 
1986 // LIR_Op3
1987 void LIR_Op3::print_instr(outputStream* out) const {
1988   in_opr1()->print(out);    out->print(" ");
1989   in_opr2()->print(out);    out->print(" ");
1990   in_opr3()->print(out);    out->print(" ");
1991   result_opr()->print(out);
1992 }
1993 
1994 
1995 void LIR_OpLock::print_instr(outputStream* out) const {
1996   hdr_opr()->print(out);   out->print(" ");
1997   obj_opr()->print(out);   out->print(" ");
1998   lock_opr()->print(out);  out->print(" ");
1999   if (_scratch->is_valid()) {
2000     _scratch->print(out);  out->print(" ");
2001   }
2002   out->print("[lbl:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2003 }
2004 
2005 #ifdef ASSERT
2006 void LIR_OpAssert::print_instr(outputStream* out) const {
2007   print_condition(out, condition()); out->print(" ");
2008   in_opr1()->print(out);             out->print(" ");
2009   in_opr2()->print(out);             out->print(", \"");
2010   out->print("%s", msg());          out->print("\"");
2011 }
2012 #endif
2013 
2014 
2015 void LIR_OpDelay::print_instr(outputStream* out) const {
2016   _op->print_on(out);
2017 }
2018 
2019 
2020 // LIR_OpProfileCall
2021 void LIR_OpProfileCall::print_instr(outputStream* out) const {
2022   profiled_method()->name()->print_symbol_on(out);
2023   out->print(".");
2024   profiled_method()->holder()->name()->print_symbol_on(out);
2025   out->print(" @ %d ", profiled_bci());
2026   mdo()->print(out);           out->print(" ");
2027   recv()->print(out);          out->print(" ");
2028   tmp1()->print(out);          out->print(" ");
2029 }
2030 
2031 // LIR_OpProfileType
2032 void LIR_OpProfileType::print_instr(outputStream* out) const {
2033   out->print("exact = ");
2034   if  (exact_klass() == NULL) {
2035     out->print("unknown");
2036   } else {
2037     exact_klass()->print_name_on(out);
2038   }
2039   out->print(" current = "); ciTypeEntries::print_ciklass(out, current_klass());
2040   out->print(" ");
2041   mdp()->print(out);          out->print(" ");
2042   obj()->print(out);          out->print(" ");
2043   tmp()->print(out);          out->print(" ");
2044 }
2045 
2046 #endif // PRODUCT
2047 
2048 // Implementation of LIR_InsertionBuffer
2049 
2050 void LIR_InsertionBuffer::append(int index, LIR_Op* op) {
2051   assert(_index_and_count.length() % 2 == 0, "must have a count for each index");
2052 
2053   int i = number_of_insertion_points() - 1;
2054   if (i < 0 || index_at(i) < index) {
2055     append_new(index, 1);
2056   } else {
2057     assert(index_at(i) == index, "can append LIR_Ops in ascending order only");
2058     assert(count_at(i) > 0, "check");
2059     set_count_at(i, count_at(i) + 1);
2060   }
2061   _ops.push(op);
2062 
2063   DEBUG_ONLY(verify());
2064 }
2065 
2066 #ifdef ASSERT
2067 void LIR_InsertionBuffer::verify() {
2068   int sum = 0;
2069   int prev_idx = -1;
2070 
2071   for (int i = 0; i < number_of_insertion_points(); i++) {
2072     assert(prev_idx < index_at(i), "index must be ordered ascending");
2073     sum += count_at(i);
2074   }
2075   assert(sum == number_of_ops(), "wrong total sum");
2076 }
2077 #endif