1 /*
   2  * Copyright (c) 2000, 2016, 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     }
 247   }
 248 #endif
 249 }
 250 
 251 
 252 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, BasicType type, BlockBegin* block)
 253   : LIR_Op(lir_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*)NULL)
 254   , _cond(cond)
 255   , _type(type)
 256   , _label(block->label())
 257   , _block(block)
 258   , _ublock(NULL)
 259   , _stub(NULL) {
 260 }
 261 
 262 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, BasicType type, CodeStub* stub) :
 263   LIR_Op(lir_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*)NULL)
 264   , _cond(cond)
 265   , _type(type)
 266   , _label(stub->entry())
 267   , _block(NULL)
 268   , _ublock(NULL)
 269   , _stub(stub) {
 270 }
 271 
 272 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, BasicType type, BlockBegin* block, BlockBegin* ublock)
 273   : LIR_Op(lir_cond_float_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*)NULL)
 274   , _cond(cond)
 275   , _type(type)
 276   , _label(block->label())
 277   , _block(block)
 278   , _ublock(ublock)
 279   , _stub(NULL)
 280 {
 281 }
 282 
 283 void LIR_OpBranch::change_block(BlockBegin* b) {
 284   assert(_block != NULL, "must have old block");
 285   assert(_block->label() == label(), "must be equal");
 286 
 287   _block = b;
 288   _label = b->label();
 289 }
 290 
 291 void LIR_OpBranch::change_ublock(BlockBegin* b) {
 292   assert(_ublock != NULL, "must have old block");
 293   _ublock = b;
 294 }
 295 
 296 void LIR_OpBranch::negate_cond() {
 297   switch (_cond) {
 298     case lir_cond_equal:        _cond = lir_cond_notEqual;     break;
 299     case lir_cond_notEqual:     _cond = lir_cond_equal;        break;
 300     case lir_cond_less:         _cond = lir_cond_greaterEqual; break;
 301     case lir_cond_lessEqual:    _cond = lir_cond_greater;      break;
 302     case lir_cond_greaterEqual: _cond = lir_cond_less;         break;
 303     case lir_cond_greater:      _cond = lir_cond_lessEqual;    break;
 304     default: ShouldNotReachHere();
 305   }
 306 }
 307 
 308 
 309 LIR_OpTypeCheck::LIR_OpTypeCheck(LIR_Code code, LIR_Opr result, LIR_Opr object, ciKlass* klass,
 310                                  LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3,
 311                                  bool fast_check, CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch,
 312                                  CodeStub* stub)
 313 
 314   : LIR_Op(code, result, NULL)
 315   , _object(object)
 316   , _array(LIR_OprFact::illegalOpr)
 317   , _klass(klass)
 318   , _tmp1(tmp1)
 319   , _tmp2(tmp2)
 320   , _tmp3(tmp3)
 321   , _fast_check(fast_check)
 322   , _stub(stub)
 323   , _info_for_patch(info_for_patch)
 324   , _info_for_exception(info_for_exception)
 325   , _profiled_method(NULL)
 326   , _profiled_bci(-1)
 327   , _should_profile(false)
 328 {
 329   if (code == lir_checkcast) {
 330     assert(info_for_exception != NULL, "checkcast throws exceptions");
 331   } else if (code == lir_instanceof) {
 332     assert(info_for_exception == NULL, "instanceof throws no exceptions");
 333   } else {
 334     ShouldNotReachHere();
 335   }
 336 }
 337 
 338 
 339 
 340 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)
 341   : LIR_Op(code, LIR_OprFact::illegalOpr, NULL)
 342   , _object(object)
 343   , _array(array)
 344   , _klass(NULL)
 345   , _tmp1(tmp1)
 346   , _tmp2(tmp2)
 347   , _tmp3(tmp3)
 348   , _fast_check(false)
 349   , _stub(NULL)
 350   , _info_for_patch(NULL)
 351   , _info_for_exception(info_for_exception)
 352   , _profiled_method(NULL)
 353   , _profiled_bci(-1)
 354   , _should_profile(false)
 355 {
 356   if (code == lir_store_check) {
 357     _stub = new ArrayStoreExceptionStub(object, info_for_exception);
 358     assert(info_for_exception != NULL, "store_check throws exceptions");
 359   } else {
 360     ShouldNotReachHere();
 361   }
 362 }
 363 
 364 
 365 LIR_OpArrayCopy::LIR_OpArrayCopy(LIR_Opr src, LIR_Opr src_pos, LIR_Opr dst, LIR_Opr dst_pos, LIR_Opr length,
 366                                  LIR_Opr tmp, ciArrayKlass* expected_type, int flags, CodeEmitInfo* info)
 367   : LIR_Op(lir_arraycopy, LIR_OprFact::illegalOpr, info)
 368   , _tmp(tmp)
 369   , _src(src)
 370   , _src_pos(src_pos)
 371   , _dst(dst)
 372   , _dst_pos(dst_pos)
 373   , _flags(flags)
 374   , _expected_type(expected_type)
 375   , _length(length) {
 376   _stub = new ArrayCopyStub(this);
 377 }
 378 
 379 LIR_OpUpdateCRC32::LIR_OpUpdateCRC32(LIR_Opr crc, LIR_Opr val, LIR_Opr res)
 380   : LIR_Op(lir_updatecrc32, res, NULL)
 381   , _crc(crc)
 382   , _val(val) {
 383 }
 384 
 385 //-------------------verify--------------------------
 386 
 387 void LIR_Op1::verify() const {
 388   switch(code()) {
 389   case lir_move:
 390     assert(in_opr()->is_valid() && result_opr()->is_valid(), "must be");
 391     break;
 392   case lir_null_check:
 393     assert(in_opr()->is_register(), "must be");
 394     break;
 395   case lir_return:
 396     assert(in_opr()->is_register() || in_opr()->is_illegal(), "must be");
 397     break;
 398   }
 399 }
 400 
 401 void LIR_OpRTCall::verify() const {
 402   assert(strcmp(Runtime1::name_for_address(addr()), "<unknown function>") != 0, "unknown function");
 403 }
 404 
 405 //-------------------visits--------------------------
 406 
 407 // complete rework of LIR instruction visitor.
 408 // The virtual call for each instruction type is replaced by a big
 409 // switch that adds the operands for each instruction
 410 
 411 void LIR_OpVisitState::visit(LIR_Op* op) {
 412   // copy information from the LIR_Op
 413   reset();
 414   set_op(op);
 415 
 416   switch (op->code()) {
 417 
 418 // LIR_Op0
 419     case lir_word_align:               // result and info always invalid
 420     case lir_backwardbranch_target:    // result and info always invalid
 421     case lir_build_frame:              // result and info always invalid
 422     case lir_fpop_raw:                 // result and info always invalid
 423     case lir_24bit_FPU:                // result and info always invalid
 424     case lir_reset_FPU:                // result and info always invalid
 425     case lir_breakpoint:               // result and info always invalid
 426     case lir_membar:                   // result and info always invalid
 427     case lir_membar_acquire:           // result and info always invalid
 428     case lir_membar_release:           // result and info always invalid
 429     case lir_membar_loadload:          // result and info always invalid
 430     case lir_membar_storestore:        // result and info always invalid
 431     case lir_membar_loadstore:         // result and info always invalid
 432     case lir_membar_storeload:         // result and info always invalid
 433     case lir_on_spin_wait:
 434     {
 435       assert(op->as_Op0() != NULL, "must be");
 436       assert(op->_info == NULL, "info not used by this instruction");
 437       assert(op->_result->is_illegal(), "not used");
 438       break;
 439     }
 440 
 441     case lir_nop:                      // may have info, result always invalid
 442     case lir_std_entry:                // may have result, info always invalid
 443     case lir_osr_entry:                // may have result, info always invalid
 444     case lir_get_thread:               // may have result, info always invalid
 445     {
 446       assert(op->as_Op0() != NULL, "must be");
 447       if (op->_info != NULL)           do_info(op->_info);
 448       if (op->_result->is_valid())     do_output(op->_result);
 449       break;
 450     }
 451 
 452 
 453 // LIR_OpLabel
 454     case lir_label:                    // result and info always invalid
 455     {
 456       assert(op->as_OpLabel() != NULL, "must be");
 457       assert(op->_info == NULL, "info not used by this instruction");
 458       assert(op->_result->is_illegal(), "not used");
 459       break;
 460     }
 461 
 462 
 463 // LIR_Op1
 464     case lir_fxch:           // input always valid, result and info always invalid
 465     case lir_fld:            // input always valid, result and info always invalid
 466     case lir_ffree:          // input always valid, result and info always invalid
 467     case lir_push:           // input always valid, result and info always invalid
 468     case lir_pop:            // input always valid, result and info always invalid
 469     case lir_return:         // input always valid, result and info always invalid
 470     case lir_leal:           // input and result always valid, info always invalid
 471     case lir_neg:            // input and result always valid, info always invalid
 472     case lir_monaddr:        // input and result always valid, info always invalid
 473     case lir_null_check:     // input and info always valid, result always invalid
 474     case lir_move:           // input and result always valid, may have info
 475     case lir_pack64:         // input and result always valid
 476     case lir_unpack64:       // input and result always valid
 477     {
 478       assert(op->as_Op1() != NULL, "must be");
 479       LIR_Op1* op1 = (LIR_Op1*)op;
 480 
 481       if (op1->_info)                  do_info(op1->_info);
 482       if (op1->_opr->is_valid())       do_input(op1->_opr);
 483       if (op1->_result->is_valid())    do_output(op1->_result);
 484 
 485       break;
 486     }
 487 
 488     case lir_safepoint:
 489     {
 490       assert(op->as_Op1() != NULL, "must be");
 491       LIR_Op1* op1 = (LIR_Op1*)op;
 492 
 493       assert(op1->_info != NULL, "");  do_info(op1->_info);
 494       if (op1->_opr->is_valid())       do_temp(op1->_opr); // safepoints on SPARC need temporary register
 495       assert(op1->_result->is_illegal(), "safepoint does not produce value");
 496 
 497       break;
 498     }
 499 
 500 // LIR_OpConvert;
 501     case lir_convert:        // input and result always valid, info always invalid
 502     {
 503       assert(op->as_OpConvert() != NULL, "must be");
 504       LIR_OpConvert* opConvert = (LIR_OpConvert*)op;
 505 
 506       assert(opConvert->_info == NULL, "must be");
 507       if (opConvert->_opr->is_valid())       do_input(opConvert->_opr);
 508       if (opConvert->_result->is_valid())    do_output(opConvert->_result);
 509 #ifdef PPC32
 510       if (opConvert->_tmp1->is_valid())      do_temp(opConvert->_tmp1);
 511       if (opConvert->_tmp2->is_valid())      do_temp(opConvert->_tmp2);
 512 #endif
 513       do_stub(opConvert->_stub);
 514 
 515       break;
 516     }
 517 
 518 // LIR_OpBranch;
 519     case lir_branch:                   // may have info, input and result register always invalid
 520     case lir_cond_float_branch:        // may have info, input and result register always invalid
 521     {
 522       assert(op->as_OpBranch() != NULL, "must be");
 523       LIR_OpBranch* opBranch = (LIR_OpBranch*)op;
 524 
 525       if (opBranch->_info != NULL)     do_info(opBranch->_info);
 526       assert(opBranch->_result->is_illegal(), "not used");
 527       if (opBranch->_stub != NULL)     opBranch->stub()->visit(this);
 528 
 529       break;
 530     }
 531 
 532 
 533 // LIR_OpAllocObj
 534     case lir_alloc_object:
 535     {
 536       assert(op->as_OpAllocObj() != NULL, "must be");
 537       LIR_OpAllocObj* opAllocObj = (LIR_OpAllocObj*)op;
 538 
 539       if (opAllocObj->_info)                     do_info(opAllocObj->_info);
 540       if (opAllocObj->_opr->is_valid()) {        do_input(opAllocObj->_opr);
 541                                                  do_temp(opAllocObj->_opr);
 542                                         }
 543       if (opAllocObj->_tmp1->is_valid())         do_temp(opAllocObj->_tmp1);
 544       if (opAllocObj->_tmp2->is_valid())         do_temp(opAllocObj->_tmp2);
 545       if (opAllocObj->_tmp3->is_valid())         do_temp(opAllocObj->_tmp3);
 546       if (opAllocObj->_tmp4->is_valid())         do_temp(opAllocObj->_tmp4);
 547       if (opAllocObj->_result->is_valid())       do_output(opAllocObj->_result);
 548                                                  do_stub(opAllocObj->_stub);
 549       break;
 550     }
 551 
 552 
 553 // LIR_OpRoundFP;
 554     case lir_roundfp: {
 555       assert(op->as_OpRoundFP() != NULL, "must be");
 556       LIR_OpRoundFP* opRoundFP = (LIR_OpRoundFP*)op;
 557 
 558       assert(op->_info == NULL, "info not used by this instruction");
 559       assert(opRoundFP->_tmp->is_illegal(), "not used");
 560       do_input(opRoundFP->_opr);
 561       do_output(opRoundFP->_result);
 562 
 563       break;
 564     }
 565 
 566 
 567 // LIR_Op2
 568     case lir_cmp:
 569     case lir_cmp_l2i:
 570     case lir_ucmp_fd2i:
 571     case lir_cmp_fd2i:
 572     case lir_add:
 573     case lir_sub:
 574     case lir_mul:
 575     case lir_div:
 576     case lir_rem:
 577     case lir_sqrt:
 578     case lir_abs:
 579     case lir_logic_and:
 580     case lir_logic_or:
 581     case lir_logic_xor:
 582     case lir_shl:
 583     case lir_shr:
 584     case lir_ushr:
 585     case lir_xadd:
 586     case lir_xchg:
 587     case lir_assert:
 588     {
 589       assert(op->as_Op2() != NULL, "must be");
 590       LIR_Op2* op2 = (LIR_Op2*)op;
 591       assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
 592              op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
 593 
 594       if (op2->_info)                     do_info(op2->_info);
 595       if (op2->_opr1->is_valid())         do_input(op2->_opr1);
 596       if (op2->_opr2->is_valid())         do_input(op2->_opr2);
 597       if (op2->_tmp1->is_valid())         do_temp(op2->_tmp1);
 598       if (op2->_result->is_valid())       do_output(op2->_result);
 599       if (op->code() == lir_xchg || op->code() == lir_xadd) {
 600         // on ARM and PPC, return value is loaded first so could
 601         // destroy inputs. On other platforms that implement those
 602         // (x86, sparc), the extra constrainsts are harmless.
 603         if (op2->_opr1->is_valid())       do_temp(op2->_opr1);
 604         if (op2->_opr2->is_valid())       do_temp(op2->_opr2);
 605       }
 606 
 607       break;
 608     }
 609 
 610     // special handling for cmove: right input operand must not be equal
 611     // to the result operand, otherwise the backend fails
 612     case lir_cmove:
 613     {
 614       assert(op->as_Op2() != NULL, "must be");
 615       LIR_Op2* op2 = (LIR_Op2*)op;
 616 
 617       assert(op2->_info == NULL && op2->_tmp1->is_illegal() && op2->_tmp2->is_illegal() &&
 618              op2->_tmp3->is_illegal() && op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
 619       assert(op2->_opr1->is_valid() && op2->_opr2->is_valid() && op2->_result->is_valid(), "used");
 620 
 621       do_input(op2->_opr1);
 622       do_input(op2->_opr2);
 623       do_temp(op2->_opr2);
 624       do_output(op2->_result);
 625 
 626       break;
 627     }
 628 
 629     // vspecial handling for strict operations: register input operands
 630     // as temp to guarantee that they do not overlap with other
 631     // registers
 632     case lir_mul_strictfp:
 633     case lir_div_strictfp:
 634     {
 635       assert(op->as_Op2() != NULL, "must be");
 636       LIR_Op2* op2 = (LIR_Op2*)op;
 637 
 638       assert(op2->_info == NULL, "not used");
 639       assert(op2->_opr1->is_valid(), "used");
 640       assert(op2->_opr2->is_valid(), "used");
 641       assert(op2->_result->is_valid(), "used");
 642       assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
 643              op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
 644 
 645       do_input(op2->_opr1); do_temp(op2->_opr1);
 646       do_input(op2->_opr2); do_temp(op2->_opr2);
 647       if (op2->_tmp1->is_valid()) do_temp(op2->_tmp1);
 648       do_output(op2->_result);
 649 
 650       break;
 651     }
 652 
 653     case lir_throw: {
 654       assert(op->as_Op2() != NULL, "must be");
 655       LIR_Op2* op2 = (LIR_Op2*)op;
 656 
 657       if (op2->_info)                     do_info(op2->_info);
 658       if (op2->_opr1->is_valid())         do_temp(op2->_opr1);
 659       if (op2->_opr2->is_valid())         do_input(op2->_opr2); // exception object is input parameter
 660       assert(op2->_result->is_illegal(), "no result");
 661       assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
 662              op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
 663 
 664       break;
 665     }
 666 
 667     case lir_unwind: {
 668       assert(op->as_Op1() != NULL, "must be");
 669       LIR_Op1* op1 = (LIR_Op1*)op;
 670 
 671       assert(op1->_info == NULL, "no info");
 672       assert(op1->_opr->is_valid(), "exception oop");         do_input(op1->_opr);
 673       assert(op1->_result->is_illegal(), "no result");
 674 
 675       break;
 676     }
 677 
 678 // LIR_Op3
 679     case lir_idiv:
 680     case lir_irem: {
 681       assert(op->as_Op3() != NULL, "must be");
 682       LIR_Op3* op3= (LIR_Op3*)op;
 683 
 684       if (op3->_info)                     do_info(op3->_info);
 685       if (op3->_opr1->is_valid())         do_input(op3->_opr1);
 686 
 687       // second operand is input and temp, so ensure that second operand
 688       // and third operand get not the same register
 689       if (op3->_opr2->is_valid())         do_input(op3->_opr2);
 690       if (op3->_opr2->is_valid())         do_temp(op3->_opr2);
 691       if (op3->_opr3->is_valid())         do_temp(op3->_opr3);
 692 
 693       if (op3->_result->is_valid())       do_output(op3->_result);
 694 
 695       break;
 696     }
 697 
 698     case lir_fmad:
 699     case lir_fmaf: {
 700       assert(op->as_Op3() != NULL, "must be");
 701       LIR_Op3* op3= (LIR_Op3*)op;
 702       assert(op3->_info == NULL, "no info");
 703       do_input(op3->_opr1);
 704       do_input(op3->_opr2);
 705       do_input(op3->_opr3);
 706       do_output(op3->_result);
 707       break;
 708     }
 709 
 710 // LIR_OpJavaCall
 711     case lir_static_call:
 712     case lir_optvirtual_call:
 713     case lir_icvirtual_call:
 714     case lir_virtual_call:
 715     case lir_dynamic_call: {
 716       LIR_OpJavaCall* opJavaCall = op->as_OpJavaCall();
 717       assert(opJavaCall != NULL, "must be");
 718 
 719       if (opJavaCall->_receiver->is_valid())     do_input(opJavaCall->_receiver);
 720 
 721       // only visit register parameters
 722       int n = opJavaCall->_arguments->length();
 723       for (int i = opJavaCall->_receiver->is_valid() ? 1 : 0; i < n; i++) {
 724         if (!opJavaCall->_arguments->at(i)->is_pointer()) {
 725           do_input(*opJavaCall->_arguments->adr_at(i));
 726         }
 727       }
 728 
 729       if (opJavaCall->_info)                     do_info(opJavaCall->_info);
 730       if (FrameMap::method_handle_invoke_SP_save_opr() != LIR_OprFact::illegalOpr &&
 731           opJavaCall->is_method_handle_invoke()) {
 732         opJavaCall->_method_handle_invoke_SP_save_opr = FrameMap::method_handle_invoke_SP_save_opr();
 733         do_temp(opJavaCall->_method_handle_invoke_SP_save_opr);
 734       }
 735       do_call();
 736       if (opJavaCall->_result->is_valid())       do_output(opJavaCall->_result);
 737 
 738       break;
 739     }
 740 
 741 
 742 // LIR_OpRTCall
 743     case lir_rtcall: {
 744       assert(op->as_OpRTCall() != NULL, "must be");
 745       LIR_OpRTCall* opRTCall = (LIR_OpRTCall*)op;
 746 
 747       // only visit register parameters
 748       int n = opRTCall->_arguments->length();
 749       for (int i = 0; i < n; i++) {
 750         if (!opRTCall->_arguments->at(i)->is_pointer()) {
 751           do_input(*opRTCall->_arguments->adr_at(i));
 752         }
 753       }
 754       if (opRTCall->_info)                     do_info(opRTCall->_info);
 755       if (opRTCall->_tmp->is_valid())          do_temp(opRTCall->_tmp);
 756       do_call();
 757       if (opRTCall->_result->is_valid())       do_output(opRTCall->_result);
 758 
 759       break;
 760     }
 761 
 762 
 763 // LIR_OpArrayCopy
 764     case lir_arraycopy: {
 765       assert(op->as_OpArrayCopy() != NULL, "must be");
 766       LIR_OpArrayCopy* opArrayCopy = (LIR_OpArrayCopy*)op;
 767 
 768       assert(opArrayCopy->_result->is_illegal(), "unused");
 769       assert(opArrayCopy->_src->is_valid(), "used");          do_input(opArrayCopy->_src);     do_temp(opArrayCopy->_src);
 770       assert(opArrayCopy->_src_pos->is_valid(), "used");      do_input(opArrayCopy->_src_pos); do_temp(opArrayCopy->_src_pos);
 771       assert(opArrayCopy->_dst->is_valid(), "used");          do_input(opArrayCopy->_dst);     do_temp(opArrayCopy->_dst);
 772       assert(opArrayCopy->_dst_pos->is_valid(), "used");      do_input(opArrayCopy->_dst_pos); do_temp(opArrayCopy->_dst_pos);
 773       assert(opArrayCopy->_length->is_valid(), "used");       do_input(opArrayCopy->_length);  do_temp(opArrayCopy->_length);
 774       assert(opArrayCopy->_tmp->is_valid(), "used");          do_temp(opArrayCopy->_tmp);
 775       if (opArrayCopy->_info)                     do_info(opArrayCopy->_info);
 776 
 777       // the implementation of arraycopy always has a call into the runtime
 778       do_call();
 779 
 780       break;
 781     }
 782 
 783 
 784 // LIR_OpUpdateCRC32
 785     case lir_updatecrc32: {
 786       assert(op->as_OpUpdateCRC32() != NULL, "must be");
 787       LIR_OpUpdateCRC32* opUp = (LIR_OpUpdateCRC32*)op;
 788 
 789       assert(opUp->_crc->is_valid(), "used");          do_input(opUp->_crc);     do_temp(opUp->_crc);
 790       assert(opUp->_val->is_valid(), "used");          do_input(opUp->_val);     do_temp(opUp->_val);
 791       assert(opUp->_result->is_valid(), "used");       do_output(opUp->_result);
 792       assert(opUp->_info == NULL, "no info for LIR_OpUpdateCRC32");
 793 
 794       break;
 795     }
 796 
 797 
 798 // LIR_OpLock
 799     case lir_lock:
 800     case lir_unlock: {
 801       assert(op->as_OpLock() != NULL, "must be");
 802       LIR_OpLock* opLock = (LIR_OpLock*)op;
 803 
 804       if (opLock->_info)                          do_info(opLock->_info);
 805 
 806       // TODO: check if these operands really have to be temp
 807       // (or if input is sufficient). This may have influence on the oop map!
 808       assert(opLock->_lock->is_valid(), "used");  do_temp(opLock->_lock);
 809       assert(opLock->_hdr->is_valid(),  "used");  do_temp(opLock->_hdr);
 810       assert(opLock->_obj->is_valid(),  "used");  do_temp(opLock->_obj);
 811 
 812       if (opLock->_scratch->is_valid())           do_temp(opLock->_scratch);
 813       assert(opLock->_result->is_illegal(), "unused");
 814 
 815       do_stub(opLock->_stub);
 816 
 817       break;
 818     }
 819 
 820 
 821 // LIR_OpDelay
 822     case lir_delay_slot: {
 823       assert(op->as_OpDelay() != NULL, "must be");
 824       LIR_OpDelay* opDelay = (LIR_OpDelay*)op;
 825 
 826       visit(opDelay->delay_op());
 827       break;
 828     }
 829 
 830 // LIR_OpTypeCheck
 831     case lir_instanceof:
 832     case lir_checkcast:
 833     case lir_store_check: {
 834       assert(op->as_OpTypeCheck() != NULL, "must be");
 835       LIR_OpTypeCheck* opTypeCheck = (LIR_OpTypeCheck*)op;
 836 
 837       if (opTypeCheck->_info_for_exception)       do_info(opTypeCheck->_info_for_exception);
 838       if (opTypeCheck->_info_for_patch)           do_info(opTypeCheck->_info_for_patch);
 839       if (opTypeCheck->_object->is_valid())       do_input(opTypeCheck->_object);
 840       if (op->code() == lir_store_check && opTypeCheck->_object->is_valid()) {
 841         do_temp(opTypeCheck->_object);
 842       }
 843       if (opTypeCheck->_array->is_valid())        do_input(opTypeCheck->_array);
 844       if (opTypeCheck->_tmp1->is_valid())         do_temp(opTypeCheck->_tmp1);
 845       if (opTypeCheck->_tmp2->is_valid())         do_temp(opTypeCheck->_tmp2);
 846       if (opTypeCheck->_tmp3->is_valid())         do_temp(opTypeCheck->_tmp3);
 847       if (opTypeCheck->_result->is_valid())       do_output(opTypeCheck->_result);
 848                                                   do_stub(opTypeCheck->_stub);
 849       break;
 850     }
 851 
 852 // LIR_OpCompareAndSwap
 853     case lir_cas_long:
 854     case lir_cas_obj:
 855     case lir_cas_int: {
 856       assert(op->as_OpCompareAndSwap() != NULL, "must be");
 857       LIR_OpCompareAndSwap* opCompareAndSwap = (LIR_OpCompareAndSwap*)op;
 858 
 859       assert(opCompareAndSwap->_addr->is_valid(),      "used");
 860       assert(opCompareAndSwap->_cmp_value->is_valid(), "used");
 861       assert(opCompareAndSwap->_new_value->is_valid(), "used");
 862       if (opCompareAndSwap->_info)                    do_info(opCompareAndSwap->_info);
 863                                                       do_input(opCompareAndSwap->_addr);
 864                                                       do_temp(opCompareAndSwap->_addr);
 865                                                       do_input(opCompareAndSwap->_cmp_value);
 866                                                       do_temp(opCompareAndSwap->_cmp_value);
 867                                                       do_input(opCompareAndSwap->_new_value);
 868                                                       do_temp(opCompareAndSwap->_new_value);
 869       if (opCompareAndSwap->_tmp1->is_valid())        do_temp(opCompareAndSwap->_tmp1);
 870       if (opCompareAndSwap->_tmp2->is_valid())        do_temp(opCompareAndSwap->_tmp2);
 871       if (opCompareAndSwap->_result->is_valid())      do_output(opCompareAndSwap->_result);
 872 
 873       break;
 874     }
 875 
 876 
 877 // LIR_OpAllocArray;
 878     case lir_alloc_array: {
 879       assert(op->as_OpAllocArray() != NULL, "must be");
 880       LIR_OpAllocArray* opAllocArray = (LIR_OpAllocArray*)op;
 881 
 882       if (opAllocArray->_info)                        do_info(opAllocArray->_info);
 883       if (opAllocArray->_klass->is_valid())           do_input(opAllocArray->_klass); do_temp(opAllocArray->_klass);
 884       if (opAllocArray->_len->is_valid())             do_input(opAllocArray->_len);   do_temp(opAllocArray->_len);
 885       if (opAllocArray->_tmp1->is_valid())            do_temp(opAllocArray->_tmp1);
 886       if (opAllocArray->_tmp2->is_valid())            do_temp(opAllocArray->_tmp2);
 887       if (opAllocArray->_tmp3->is_valid())            do_temp(opAllocArray->_tmp3);
 888       if (opAllocArray->_tmp4->is_valid())            do_temp(opAllocArray->_tmp4);
 889       if (opAllocArray->_result->is_valid())          do_output(opAllocArray->_result);
 890                                                       do_stub(opAllocArray->_stub);
 891       break;
 892     }
 893 
 894 // LIR_OpProfileCall:
 895     case lir_profile_call: {
 896       assert(op->as_OpProfileCall() != NULL, "must be");
 897       LIR_OpProfileCall* opProfileCall = (LIR_OpProfileCall*)op;
 898 
 899       if (opProfileCall->_recv->is_valid())              do_temp(opProfileCall->_recv);
 900       assert(opProfileCall->_mdo->is_valid(), "used");   do_temp(opProfileCall->_mdo);
 901       assert(opProfileCall->_tmp1->is_valid(), "used");  do_temp(opProfileCall->_tmp1);
 902       break;
 903     }
 904 
 905 // LIR_OpProfileType:
 906     case lir_profile_type: {
 907       assert(op->as_OpProfileType() != NULL, "must be");
 908       LIR_OpProfileType* opProfileType = (LIR_OpProfileType*)op;
 909 
 910       do_input(opProfileType->_mdp); do_temp(opProfileType->_mdp);
 911       do_input(opProfileType->_obj);
 912       do_temp(opProfileType->_tmp);
 913       break;
 914     }
 915   default:
 916     ShouldNotReachHere();
 917   }
 918 }
 919 
 920 
 921 void LIR_OpVisitState::do_stub(CodeStub* stub) {
 922   if (stub != NULL) {
 923     stub->visit(this);
 924   }
 925 }
 926 
 927 XHandlers* LIR_OpVisitState::all_xhandler() {
 928   XHandlers* result = NULL;
 929 
 930   int i;
 931   for (i = 0; i < info_count(); i++) {
 932     if (info_at(i)->exception_handlers() != NULL) {
 933       result = info_at(i)->exception_handlers();
 934       break;
 935     }
 936   }
 937 
 938 #ifdef ASSERT
 939   for (i = 0; i < info_count(); i++) {
 940     assert(info_at(i)->exception_handlers() == NULL ||
 941            info_at(i)->exception_handlers() == result,
 942            "only one xhandler list allowed per LIR-operation");
 943   }
 944 #endif
 945 
 946   if (result != NULL) {
 947     return result;
 948   } else {
 949     return new XHandlers();
 950   }
 951 
 952   return result;
 953 }
 954 
 955 
 956 #ifdef ASSERT
 957 bool LIR_OpVisitState::no_operands(LIR_Op* op) {
 958   visit(op);
 959 
 960   return opr_count(inputMode) == 0 &&
 961          opr_count(outputMode) == 0 &&
 962          opr_count(tempMode) == 0 &&
 963          info_count() == 0 &&
 964          !has_call() &&
 965          !has_slow_case();
 966 }
 967 #endif
 968 
 969 //---------------------------------------------------
 970 
 971 
 972 void LIR_OpJavaCall::emit_code(LIR_Assembler* masm) {
 973   masm->emit_call(this);
 974 }
 975 
 976 void LIR_OpRTCall::emit_code(LIR_Assembler* masm) {
 977   masm->emit_rtcall(this);
 978 }
 979 
 980 void LIR_OpLabel::emit_code(LIR_Assembler* masm) {
 981   masm->emit_opLabel(this);
 982 }
 983 
 984 void LIR_OpArrayCopy::emit_code(LIR_Assembler* masm) {
 985   masm->emit_arraycopy(this);
 986   masm->append_code_stub(stub());
 987 }
 988 
 989 void LIR_OpUpdateCRC32::emit_code(LIR_Assembler* masm) {
 990   masm->emit_updatecrc32(this);
 991 }
 992 
 993 void LIR_Op0::emit_code(LIR_Assembler* masm) {
 994   masm->emit_op0(this);
 995 }
 996 
 997 void LIR_Op1::emit_code(LIR_Assembler* masm) {
 998   masm->emit_op1(this);
 999 }
1000 
1001 void LIR_OpAllocObj::emit_code(LIR_Assembler* masm) {
1002   masm->emit_alloc_obj(this);
1003   masm->append_code_stub(stub());
1004 }
1005 
1006 void LIR_OpBranch::emit_code(LIR_Assembler* masm) {
1007   masm->emit_opBranch(this);
1008   if (stub()) {
1009     masm->append_code_stub(stub());
1010   }
1011 }
1012 
1013 void LIR_OpConvert::emit_code(LIR_Assembler* masm) {
1014   masm->emit_opConvert(this);
1015   if (stub() != NULL) {
1016     masm->append_code_stub(stub());
1017   }
1018 }
1019 
1020 void LIR_Op2::emit_code(LIR_Assembler* masm) {
1021   masm->emit_op2(this);
1022 }
1023 
1024 void LIR_OpAllocArray::emit_code(LIR_Assembler* masm) {
1025   masm->emit_alloc_array(this);
1026   masm->append_code_stub(stub());
1027 }
1028 
1029 void LIR_OpTypeCheck::emit_code(LIR_Assembler* masm) {
1030   masm->emit_opTypeCheck(this);
1031   if (stub()) {
1032     masm->append_code_stub(stub());
1033   }
1034 }
1035 
1036 void LIR_OpCompareAndSwap::emit_code(LIR_Assembler* masm) {
1037   masm->emit_compare_and_swap(this);
1038 }
1039 
1040 void LIR_Op3::emit_code(LIR_Assembler* masm) {
1041   masm->emit_op3(this);
1042 }
1043 
1044 void LIR_OpLock::emit_code(LIR_Assembler* masm) {
1045   masm->emit_lock(this);
1046   if (stub()) {
1047     masm->append_code_stub(stub());
1048   }
1049 }
1050 
1051 #ifdef ASSERT
1052 void LIR_OpAssert::emit_code(LIR_Assembler* masm) {
1053   masm->emit_assert(this);
1054 }
1055 #endif
1056 
1057 void LIR_OpDelay::emit_code(LIR_Assembler* masm) {
1058   masm->emit_delay(this);
1059 }
1060 
1061 void LIR_OpProfileCall::emit_code(LIR_Assembler* masm) {
1062   masm->emit_profile_call(this);
1063 }
1064 
1065 void LIR_OpProfileType::emit_code(LIR_Assembler* masm) {
1066   masm->emit_profile_type(this);
1067 }
1068 
1069 // LIR_List
1070 LIR_List::LIR_List(Compilation* compilation, BlockBegin* block)
1071   : _operations(8)
1072   , _compilation(compilation)
1073 #ifndef PRODUCT
1074   , _block(block)
1075 #endif
1076 #ifdef ASSERT
1077   , _file(NULL)
1078   , _line(0)
1079 #endif
1080 { }
1081 
1082 
1083 #ifdef ASSERT
1084 void LIR_List::set_file_and_line(const char * file, int line) {
1085   const char * f = strrchr(file, '/');
1086   if (f == NULL) f = strrchr(file, '\\');
1087   if (f == NULL) {
1088     f = file;
1089   } else {
1090     f++;
1091   }
1092   _file = f;
1093   _line = line;
1094 }
1095 #endif
1096 
1097 
1098 void LIR_List::append(LIR_InsertionBuffer* buffer) {
1099   assert(this == buffer->lir_list(), "wrong lir list");
1100   const int n = _operations.length();
1101 
1102   if (buffer->number_of_ops() > 0) {
1103     // increase size of instructions list
1104     _operations.at_grow(n + buffer->number_of_ops() - 1, NULL);
1105     // insert ops from buffer into instructions list
1106     int op_index = buffer->number_of_ops() - 1;
1107     int ip_index = buffer->number_of_insertion_points() - 1;
1108     int from_index = n - 1;
1109     int to_index = _operations.length() - 1;
1110     for (; ip_index >= 0; ip_index --) {
1111       int index = buffer->index_at(ip_index);
1112       // make room after insertion point
1113       while (index < from_index) {
1114         _operations.at_put(to_index --, _operations.at(from_index --));
1115       }
1116       // insert ops from buffer
1117       for (int i = buffer->count_at(ip_index); i > 0; i --) {
1118         _operations.at_put(to_index --, buffer->op_at(op_index --));
1119       }
1120     }
1121   }
1122 
1123   buffer->finish();
1124 }
1125 
1126 
1127 void LIR_List::oop2reg_patch(jobject o, LIR_Opr reg, CodeEmitInfo* info) {
1128   assert(reg->type() == T_OBJECT, "bad reg");
1129   append(new LIR_Op1(lir_move, LIR_OprFact::oopConst(o),  reg, T_OBJECT, lir_patch_normal, info));
1130 }
1131 
1132 void LIR_List::klass2reg_patch(Metadata* o, LIR_Opr reg, CodeEmitInfo* info) {
1133   assert(reg->type() == T_METADATA, "bad reg");
1134   append(new LIR_Op1(lir_move, LIR_OprFact::metadataConst(o), reg, T_METADATA, lir_patch_normal, info));
1135 }
1136 
1137 void LIR_List::load(LIR_Address* addr, LIR_Opr src, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1138   append(new LIR_Op1(
1139             lir_move,
1140             LIR_OprFact::address(addr),
1141             src,
1142             addr->type(),
1143             patch_code,
1144             info));
1145 }
1146 
1147 
1148 void LIR_List::volatile_load_mem_reg(LIR_Address* address, LIR_Opr dst, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1149   append(new LIR_Op1(
1150             lir_move,
1151             LIR_OprFact::address(address),
1152             dst,
1153             address->type(),
1154             patch_code,
1155             info, lir_move_volatile));
1156 }
1157 
1158 void LIR_List::volatile_load_unsafe_reg(LIR_Opr base, LIR_Opr offset, LIR_Opr dst, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1159   append(new LIR_Op1(
1160             lir_move,
1161             LIR_OprFact::address(new LIR_Address(base, offset, type)),
1162             dst,
1163             type,
1164             patch_code,
1165             info, lir_move_volatile));
1166 }
1167 
1168 
1169 void LIR_List::store_mem_int(jint v, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1170   append(new LIR_Op1(
1171             lir_move,
1172             LIR_OprFact::intConst(v),
1173             LIR_OprFact::address(new LIR_Address(base, offset_in_bytes, type)),
1174             type,
1175             patch_code,
1176             info));
1177 }
1178 
1179 
1180 void LIR_List::store_mem_oop(jobject o, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1181   append(new LIR_Op1(
1182             lir_move,
1183             LIR_OprFact::oopConst(o),
1184             LIR_OprFact::address(new LIR_Address(base, offset_in_bytes, type)),
1185             type,
1186             patch_code,
1187             info));
1188 }
1189 
1190 
1191 void LIR_List::store(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1192   append(new LIR_Op1(
1193             lir_move,
1194             src,
1195             LIR_OprFact::address(addr),
1196             addr->type(),
1197             patch_code,
1198             info));
1199 }
1200 
1201 
1202 void LIR_List::volatile_store_mem_reg(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1203   append(new LIR_Op1(
1204             lir_move,
1205             src,
1206             LIR_OprFact::address(addr),
1207             addr->type(),
1208             patch_code,
1209             info,
1210             lir_move_volatile));
1211 }
1212 
1213 void LIR_List::volatile_store_unsafe_reg(LIR_Opr src, LIR_Opr base, LIR_Opr offset, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1214   append(new LIR_Op1(
1215             lir_move,
1216             src,
1217             LIR_OprFact::address(new LIR_Address(base, offset, type)),
1218             type,
1219             patch_code,
1220             info, lir_move_volatile));
1221 }
1222 
1223 
1224 void LIR_List::idiv(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1225   append(new LIR_Op3(
1226                     lir_idiv,
1227                     left,
1228                     right,
1229                     tmp,
1230                     res,
1231                     info));
1232 }
1233 
1234 
1235 void LIR_List::idiv(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1236   append(new LIR_Op3(
1237                     lir_idiv,
1238                     left,
1239                     LIR_OprFact::intConst(right),
1240                     tmp,
1241                     res,
1242                     info));
1243 }
1244 
1245 
1246 void LIR_List::irem(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1247   append(new LIR_Op3(
1248                     lir_irem,
1249                     left,
1250                     right,
1251                     tmp,
1252                     res,
1253                     info));
1254 }
1255 
1256 
1257 void LIR_List::irem(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1258   append(new LIR_Op3(
1259                     lir_irem,
1260                     left,
1261                     LIR_OprFact::intConst(right),
1262                     tmp,
1263                     res,
1264                     info));
1265 }
1266 
1267 
1268 void LIR_List::cmp_mem_int(LIR_Condition condition, LIR_Opr base, int disp, int c, CodeEmitInfo* info) {
1269   append(new LIR_Op2(
1270                     lir_cmp,
1271                     condition,
1272                     LIR_OprFact::address(new LIR_Address(base, disp, T_INT)),
1273                     LIR_OprFact::intConst(c),
1274                     info));
1275 }
1276 
1277 
1278 void LIR_List::cmp_reg_mem(LIR_Condition condition, LIR_Opr reg, LIR_Address* addr, CodeEmitInfo* info) {
1279   append(new LIR_Op2(
1280                     lir_cmp,
1281                     condition,
1282                     reg,
1283                     LIR_OprFact::address(addr),
1284                     info));
1285 }
1286 
1287 void LIR_List::allocate_object(LIR_Opr dst, LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4,
1288                                int header_size, int object_size, LIR_Opr klass, bool init_check, CodeStub* stub) {
1289   append(new LIR_OpAllocObj(
1290                            klass,
1291                            dst,
1292                            t1,
1293                            t2,
1294                            t3,
1295                            t4,
1296                            header_size,
1297                            object_size,
1298                            init_check,
1299                            stub));
1300 }
1301 
1302 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) {
1303   append(new LIR_OpAllocArray(
1304                            klass,
1305                            len,
1306                            dst,
1307                            t1,
1308                            t2,
1309                            t3,
1310                            t4,
1311                            type,
1312                            stub));
1313 }
1314 
1315 void LIR_List::shift_left(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1316  append(new LIR_Op2(
1317                     lir_shl,
1318                     value,
1319                     count,
1320                     dst,
1321                     tmp));
1322 }
1323 
1324 void LIR_List::shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1325  append(new LIR_Op2(
1326                     lir_shr,
1327                     value,
1328                     count,
1329                     dst,
1330                     tmp));
1331 }
1332 
1333 
1334 void LIR_List::unsigned_shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1335  append(new LIR_Op2(
1336                     lir_ushr,
1337                     value,
1338                     count,
1339                     dst,
1340                     tmp));
1341 }
1342 
1343 void LIR_List::fcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst, bool is_unordered_less) {
1344   append(new LIR_Op2(is_unordered_less ? lir_ucmp_fd2i : lir_cmp_fd2i,
1345                      left,
1346                      right,
1347                      dst));
1348 }
1349 
1350 void LIR_List::lock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info) {
1351   append(new LIR_OpLock(
1352                     lir_lock,
1353                     hdr,
1354                     obj,
1355                     lock,
1356                     scratch,
1357                     stub,
1358                     info));
1359 }
1360 
1361 void LIR_List::unlock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub) {
1362   append(new LIR_OpLock(
1363                     lir_unlock,
1364                     hdr,
1365                     obj,
1366                     lock,
1367                     scratch,
1368                     stub,
1369                     NULL));
1370 }
1371 
1372 
1373 void check_LIR() {
1374   // cannot do the proper checking as PRODUCT and other modes return different results
1375   // guarantee(sizeof(LIR_OprDesc) == wordSize, "may not have a v-table");
1376 }
1377 
1378 
1379 
1380 void LIR_List::checkcast (LIR_Opr result, LIR_Opr object, ciKlass* klass,
1381                           LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
1382                           CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub,
1383                           ciMethod* profiled_method, int profiled_bci) {
1384   LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_checkcast, result, object, klass,
1385                                            tmp1, tmp2, tmp3, fast_check, info_for_exception, info_for_patch, stub);
1386   if (profiled_method != NULL) {
1387     c->set_profiled_method(profiled_method);
1388     c->set_profiled_bci(profiled_bci);
1389     c->set_should_profile(true);
1390   }
1391   append(c);
1392 }
1393 
1394 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) {
1395   LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_instanceof, result, object, klass, tmp1, tmp2, tmp3, fast_check, NULL, info_for_patch, NULL);
1396   if (profiled_method != NULL) {
1397     c->set_profiled_method(profiled_method);
1398     c->set_profiled_bci(profiled_bci);
1399     c->set_should_profile(true);
1400   }
1401   append(c);
1402 }
1403 
1404 
1405 void LIR_List::store_check(LIR_Opr object, LIR_Opr array, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3,
1406                            CodeEmitInfo* info_for_exception, ciMethod* profiled_method, int profiled_bci) {
1407   LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_store_check, object, array, tmp1, tmp2, tmp3, info_for_exception);
1408   if (profiled_method != NULL) {
1409     c->set_profiled_method(profiled_method);
1410     c->set_profiled_bci(profiled_bci);
1411     c->set_should_profile(true);
1412   }
1413   append(c);
1414 }
1415 
1416 void LIR_List::null_check(LIR_Opr opr, CodeEmitInfo* info, bool deoptimize_on_null) {
1417   if (deoptimize_on_null) {
1418     // Emit an explicit null check and deoptimize if opr is null
1419     CodeStub* deopt = new DeoptimizeStub(info, Deoptimization::Reason_null_check, Deoptimization::Action_none);
1420     cmp(lir_cond_equal, opr, LIR_OprFact::oopConst(NULL));
1421     branch(lir_cond_equal, T_OBJECT, deopt);
1422   } else {
1423     // Emit an implicit null check
1424     append(new LIR_Op1(lir_null_check, opr, info));
1425   }
1426 }
1427 
1428 void LIR_List::cas_long(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1429                         LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1430   append(new LIR_OpCompareAndSwap(lir_cas_long, addr, cmp_value, new_value, t1, t2, result));
1431 }
1432 
1433 void LIR_List::cas_obj(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1434                        LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1435   append(new LIR_OpCompareAndSwap(lir_cas_obj, addr, cmp_value, new_value, t1, t2, result));
1436 }
1437 
1438 void LIR_List::cas_int(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1439                        LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1440   append(new LIR_OpCompareAndSwap(lir_cas_int, addr, cmp_value, new_value, t1, t2, result));
1441 }
1442 
1443 
1444 #ifdef PRODUCT
1445 
1446 void print_LIR(BlockList* blocks) {
1447 }
1448 
1449 #else
1450 // LIR_OprDesc
1451 void LIR_OprDesc::print() const {
1452   print(tty);
1453 }
1454 
1455 void LIR_OprDesc::print(outputStream* out) const {
1456   if (is_illegal()) {
1457     return;
1458   }
1459 
1460   out->print("[");
1461   if (is_pointer()) {
1462     pointer()->print_value_on(out);
1463   } else if (is_single_stack()) {
1464     out->print("stack:%d", single_stack_ix());
1465   } else if (is_double_stack()) {
1466     out->print("dbl_stack:%d",double_stack_ix());
1467   } else if (is_virtual()) {
1468     out->print("R%d", vreg_number());
1469   } else if (is_single_cpu()) {
1470     out->print("%s", as_register()->name());
1471   } else if (is_double_cpu()) {
1472     out->print("%s", as_register_hi()->name());
1473     out->print("%s", as_register_lo()->name());
1474 #if defined(X86)
1475   } else if (is_single_xmm()) {
1476     out->print("%s", as_xmm_float_reg()->name());
1477   } else if (is_double_xmm()) {
1478     out->print("%s", as_xmm_double_reg()->name());
1479   } else if (is_single_fpu()) {
1480     out->print("fpu%d", fpu_regnr());
1481   } else if (is_double_fpu()) {
1482     out->print("fpu%d", fpu_regnrLo());
1483 #elif defined(AARCH64)
1484   } else if (is_single_fpu()) {
1485     out->print("fpu%d", fpu_regnr());
1486   } else if (is_double_fpu()) {
1487     out->print("fpu%d", fpu_regnrLo());
1488 #elif defined(ARM)
1489   } else if (is_single_fpu()) {
1490     out->print("s%d", fpu_regnr());
1491   } else if (is_double_fpu()) {
1492     out->print("d%d", fpu_regnrLo() >> 1);
1493 #else
1494   } else if (is_single_fpu()) {
1495     out->print("%s", as_float_reg()->name());
1496   } else if (is_double_fpu()) {
1497     out->print("%s", as_double_reg()->name());
1498 #endif
1499 
1500   } else if (is_illegal()) {
1501     out->print("-");
1502   } else {
1503     out->print("Unknown Operand");
1504   }
1505   if (!is_illegal()) {
1506     out->print("|%c", type_char());
1507   }
1508   if (is_register() && is_last_use()) {
1509     out->print("(last_use)");
1510   }
1511   out->print("]");
1512 }
1513 
1514 
1515 // LIR_Address
1516 void LIR_Const::print_value_on(outputStream* out) const {
1517   switch (type()) {
1518     case T_ADDRESS:out->print("address:%d",as_jint());          break;
1519     case T_INT:    out->print("int:%d",   as_jint());           break;
1520     case T_LONG:   out->print("lng:" JLONG_FORMAT, as_jlong()); break;
1521     case T_FLOAT:  out->print("flt:%f",   as_jfloat());         break;
1522     case T_DOUBLE: out->print("dbl:%f",   as_jdouble());        break;
1523     case T_OBJECT: out->print("obj:" INTPTR_FORMAT, p2i(as_jobject()));        break;
1524     case T_METADATA: out->print("metadata:" INTPTR_FORMAT, p2i(as_metadata()));break;
1525     default:       out->print("%3d:0x" UINT64_FORMAT_X, type(), (uint64_t)as_jlong()); break;
1526   }
1527 }
1528 
1529 // LIR_Address
1530 void LIR_Address::print_value_on(outputStream* out) const {
1531   out->print("Base:"); _base->print(out);
1532   if (!_index->is_illegal()) {
1533     out->print(" Index:"); _index->print(out);
1534     switch (scale()) {
1535     case times_1: break;
1536     case times_2: out->print(" * 2"); break;
1537     case times_4: out->print(" * 4"); break;
1538     case times_8: out->print(" * 8"); break;
1539     }
1540   }
1541   out->print(" Disp: " INTX_FORMAT, _disp);
1542 }
1543 
1544 // debug output of block header without InstructionPrinter
1545 //       (because phi functions are not necessary for LIR)
1546 static void print_block(BlockBegin* x) {
1547   // print block id
1548   BlockEnd* end = x->end();
1549   tty->print("B%d ", x->block_id());
1550 
1551   // print flags
1552   if (x->is_set(BlockBegin::std_entry_flag))               tty->print("std ");
1553   if (x->is_set(BlockBegin::osr_entry_flag))               tty->print("osr ");
1554   if (x->is_set(BlockBegin::exception_entry_flag))         tty->print("ex ");
1555   if (x->is_set(BlockBegin::subroutine_entry_flag))        tty->print("jsr ");
1556   if (x->is_set(BlockBegin::backward_branch_target_flag))  tty->print("bb ");
1557   if (x->is_set(BlockBegin::linear_scan_loop_header_flag)) tty->print("lh ");
1558   if (x->is_set(BlockBegin::linear_scan_loop_end_flag))    tty->print("le ");
1559 
1560   // print block bci range
1561   tty->print("[%d, %d] ", x->bci(), (end == NULL ? -1 : end->printable_bci()));
1562 
1563   // print predecessors and successors
1564   if (x->number_of_preds() > 0) {
1565     tty->print("preds: ");
1566     for (int i = 0; i < x->number_of_preds(); i ++) {
1567       tty->print("B%d ", x->pred_at(i)->block_id());
1568     }
1569   }
1570 
1571   if (x->number_of_sux() > 0) {
1572     tty->print("sux: ");
1573     for (int i = 0; i < x->number_of_sux(); i ++) {
1574       tty->print("B%d ", x->sux_at(i)->block_id());
1575     }
1576   }
1577 
1578   // print exception handlers
1579   if (x->number_of_exception_handlers() > 0) {
1580     tty->print("xhandler: ");
1581     for (int i = 0; i < x->number_of_exception_handlers();  i++) {
1582       tty->print("B%d ", x->exception_handler_at(i)->block_id());
1583     }
1584   }
1585 
1586   tty->cr();
1587 }
1588 
1589 void print_LIR(BlockList* blocks) {
1590   tty->print_cr("LIR:");
1591   int i;
1592   for (i = 0; i < blocks->length(); i++) {
1593     BlockBegin* bb = blocks->at(i);
1594     print_block(bb);
1595     tty->print("__id_Instruction___________________________________________"); tty->cr();
1596     bb->lir()->print_instructions();
1597   }
1598 }
1599 
1600 void LIR_List::print_instructions() {
1601   for (int i = 0; i < _operations.length(); i++) {
1602     _operations.at(i)->print(); tty->cr();
1603   }
1604   tty->cr();
1605 }
1606 
1607 // LIR_Ops printing routines
1608 // LIR_Op
1609 void LIR_Op::print_on(outputStream* out) const {
1610   if (id() != -1 || PrintCFGToFile) {
1611     out->print("%4d ", id());
1612   } else {
1613     out->print("     ");
1614   }
1615   out->print("%s ", name());
1616   print_instr(out);
1617   if (info() != NULL) out->print(" [bci:%d]", info()->stack()->bci());
1618 #ifdef ASSERT
1619   if (Verbose && _file != NULL) {
1620     out->print(" (%s:%d)", _file, _line);
1621   }
1622 #endif
1623 }
1624 
1625 const char * LIR_Op::name() const {
1626   const char* s = NULL;
1627   switch(code()) {
1628      // LIR_Op0
1629      case lir_membar:                s = "membar";        break;
1630      case lir_membar_acquire:        s = "membar_acquire"; break;
1631      case lir_membar_release:        s = "membar_release"; break;
1632      case lir_membar_loadload:       s = "membar_loadload";   break;
1633      case lir_membar_storestore:     s = "membar_storestore"; break;
1634      case lir_membar_loadstore:      s = "membar_loadstore";  break;
1635      case lir_membar_storeload:      s = "membar_storeload";  break;
1636      case lir_word_align:            s = "word_align";    break;
1637      case lir_label:                 s = "label";         break;
1638      case lir_nop:                   s = "nop";           break;
1639      case lir_on_spin_wait:          s = "on_spin_wait";  break;
1640      case lir_backwardbranch_target: s = "backbranch";    break;
1641      case lir_std_entry:             s = "std_entry";     break;
1642      case lir_osr_entry:             s = "osr_entry";     break;
1643      case lir_build_frame:           s = "build_frm";     break;
1644      case lir_fpop_raw:              s = "fpop_raw";      break;
1645      case lir_24bit_FPU:             s = "24bit_FPU";     break;
1646      case lir_reset_FPU:             s = "reset_FPU";     break;
1647      case lir_breakpoint:            s = "breakpoint";    break;
1648      case lir_get_thread:            s = "get_thread";    break;
1649      // LIR_Op1
1650      case lir_fxch:                  s = "fxch";          break;
1651      case lir_fld:                   s = "fld";           break;
1652      case lir_ffree:                 s = "ffree";         break;
1653      case lir_push:                  s = "push";          break;
1654      case lir_pop:                   s = "pop";           break;
1655      case lir_null_check:            s = "null_check";    break;
1656      case lir_return:                s = "return";        break;
1657      case lir_safepoint:             s = "safepoint";     break;
1658      case lir_neg:                   s = "neg";           break;
1659      case lir_leal:                  s = "leal";          break;
1660      case lir_branch:                s = "branch";        break;
1661      case lir_cond_float_branch:     s = "flt_cond_br";   break;
1662      case lir_move:                  s = "move";          break;
1663      case lir_roundfp:               s = "roundfp";       break;
1664      case lir_rtcall:                s = "rtcall";        break;
1665      case lir_throw:                 s = "throw";         break;
1666      case lir_unwind:                s = "unwind";        break;
1667      case lir_convert:               s = "convert";       break;
1668      case lir_alloc_object:          s = "alloc_obj";     break;
1669      case lir_monaddr:               s = "mon_addr";      break;
1670      case lir_pack64:                s = "pack64";        break;
1671      case lir_unpack64:              s = "unpack64";      break;
1672      // LIR_Op2
1673      case lir_cmp:                   s = "cmp";           break;
1674      case lir_cmp_l2i:               s = "cmp_l2i";       break;
1675      case lir_ucmp_fd2i:             s = "ucomp_fd2i";    break;
1676      case lir_cmp_fd2i:              s = "comp_fd2i";     break;
1677      case lir_cmove:                 s = "cmove";         break;
1678      case lir_add:                   s = "add";           break;
1679      case lir_sub:                   s = "sub";           break;
1680      case lir_mul:                   s = "mul";           break;
1681      case lir_mul_strictfp:          s = "mul_strictfp";  break;
1682      case lir_div:                   s = "div";           break;
1683      case lir_div_strictfp:          s = "div_strictfp";  break;
1684      case lir_rem:                   s = "rem";           break;
1685      case lir_abs:                   s = "abs";           break;
1686      case lir_sqrt:                  s = "sqrt";          break;
1687      case lir_logic_and:             s = "logic_and";     break;
1688      case lir_logic_or:              s = "logic_or";      break;
1689      case lir_logic_xor:             s = "logic_xor";     break;
1690      case lir_shl:                   s = "shift_left";    break;
1691      case lir_shr:                   s = "shift_right";   break;
1692      case lir_ushr:                  s = "ushift_right";  break;
1693      case lir_alloc_array:           s = "alloc_array";   break;
1694      case lir_xadd:                  s = "xadd";          break;
1695      case lir_xchg:                  s = "xchg";          break;
1696      // LIR_Op3
1697      case lir_idiv:                  s = "idiv";          break;
1698      case lir_irem:                  s = "irem";          break;
1699      case lir_fmad:                  s = "fmad";          break;
1700      case lir_fmaf:                  s = "fmaf";          break;
1701      // LIR_OpJavaCall
1702      case lir_static_call:           s = "static";        break;
1703      case lir_optvirtual_call:       s = "optvirtual";    break;
1704      case lir_icvirtual_call:        s = "icvirtual";     break;
1705      case lir_virtual_call:          s = "virtual";       break;
1706      case lir_dynamic_call:          s = "dynamic";       break;
1707      // LIR_OpArrayCopy
1708      case lir_arraycopy:             s = "arraycopy";     break;
1709      // LIR_OpUpdateCRC32
1710      case lir_updatecrc32:           s = "updatecrc32";   break;
1711      // LIR_OpLock
1712      case lir_lock:                  s = "lock";          break;
1713      case lir_unlock:                s = "unlock";        break;
1714      // LIR_OpDelay
1715      case lir_delay_slot:            s = "delay";         break;
1716      // LIR_OpTypeCheck
1717      case lir_instanceof:            s = "instanceof";    break;
1718      case lir_checkcast:             s = "checkcast";     break;
1719      case lir_store_check:           s = "store_check";   break;
1720      // LIR_OpCompareAndSwap
1721      case lir_cas_long:              s = "cas_long";      break;
1722      case lir_cas_obj:               s = "cas_obj";      break;
1723      case lir_cas_int:               s = "cas_int";      break;
1724      // LIR_OpProfileCall
1725      case lir_profile_call:          s = "profile_call";  break;
1726      // LIR_OpProfileType
1727      case lir_profile_type:          s = "profile_type";  break;
1728      // LIR_OpAssert
1729 #ifdef ASSERT
1730      case lir_assert:                s = "assert";        break;
1731 #endif
1732      case lir_none:                  ShouldNotReachHere();break;
1733     default:                         s = "illegal_op";    break;
1734   }
1735   return s;
1736 }
1737 
1738 // LIR_OpJavaCall
1739 void LIR_OpJavaCall::print_instr(outputStream* out) const {
1740   out->print("call: ");
1741   out->print("[addr: " INTPTR_FORMAT "]", p2i(address()));
1742   if (receiver()->is_valid()) {
1743     out->print(" [recv: ");   receiver()->print(out);   out->print("]");
1744   }
1745   if (result_opr()->is_valid()) {
1746     out->print(" [result: "); result_opr()->print(out); out->print("]");
1747   }
1748 }
1749 
1750 // LIR_OpLabel
1751 void LIR_OpLabel::print_instr(outputStream* out) const {
1752   out->print("[label:" INTPTR_FORMAT "]", p2i(_label));
1753 }
1754 
1755 // LIR_OpArrayCopy
1756 void LIR_OpArrayCopy::print_instr(outputStream* out) const {
1757   src()->print(out);     out->print(" ");
1758   src_pos()->print(out); out->print(" ");
1759   dst()->print(out);     out->print(" ");
1760   dst_pos()->print(out); out->print(" ");
1761   length()->print(out);  out->print(" ");
1762   tmp()->print(out);     out->print(" ");
1763 }
1764 
1765 // LIR_OpUpdateCRC32
1766 void LIR_OpUpdateCRC32::print_instr(outputStream* out) const {
1767   crc()->print(out);     out->print(" ");
1768   val()->print(out);     out->print(" ");
1769   result_opr()->print(out); out->print(" ");
1770 }
1771 
1772 // LIR_OpCompareAndSwap
1773 void LIR_OpCompareAndSwap::print_instr(outputStream* out) const {
1774   addr()->print(out);      out->print(" ");
1775   cmp_value()->print(out); out->print(" ");
1776   new_value()->print(out); out->print(" ");
1777   tmp1()->print(out);      out->print(" ");
1778   tmp2()->print(out);      out->print(" ");
1779 
1780 }
1781 
1782 // LIR_Op0
1783 void LIR_Op0::print_instr(outputStream* out) const {
1784   result_opr()->print(out);
1785 }
1786 
1787 // LIR_Op1
1788 const char * LIR_Op1::name() const {
1789   if (code() == lir_move) {
1790     switch (move_kind()) {
1791     case lir_move_normal:
1792       return "move";
1793     case lir_move_unaligned:
1794       return "unaligned move";
1795     case lir_move_volatile:
1796       return "volatile_move";
1797     case lir_move_wide:
1798       return "wide_move";
1799     default:
1800       ShouldNotReachHere();
1801     return "illegal_op";
1802     }
1803   } else {
1804     return LIR_Op::name();
1805   }
1806 }
1807 
1808 
1809 void LIR_Op1::print_instr(outputStream* out) const {
1810   _opr->print(out);         out->print(" ");
1811   result_opr()->print(out); out->print(" ");
1812   print_patch_code(out, patch_code());
1813 }
1814 
1815 
1816 // LIR_Op1
1817 void LIR_OpRTCall::print_instr(outputStream* out) const {
1818   intx a = (intx)addr();
1819   out->print("%s", Runtime1::name_for_address(addr()));
1820   out->print(" ");
1821   tmp()->print(out);
1822 }
1823 
1824 void LIR_Op1::print_patch_code(outputStream* out, LIR_PatchCode code) {
1825   switch(code) {
1826     case lir_patch_none:                                 break;
1827     case lir_patch_low:    out->print("[patch_low]");    break;
1828     case lir_patch_high:   out->print("[patch_high]");   break;
1829     case lir_patch_normal: out->print("[patch_normal]"); break;
1830     default: ShouldNotReachHere();
1831   }
1832 }
1833 
1834 // LIR_OpBranch
1835 void LIR_OpBranch::print_instr(outputStream* out) const {
1836   print_condition(out, cond());             out->print(" ");
1837   if (block() != NULL) {
1838     out->print("[B%d] ", block()->block_id());
1839   } else if (stub() != NULL) {
1840     out->print("[");
1841     stub()->print_name(out);
1842     out->print(": " INTPTR_FORMAT "]", p2i(stub()));
1843     if (stub()->info() != NULL) out->print(" [bci:%d]", stub()->info()->stack()->bci());
1844   } else {
1845     out->print("[label:" INTPTR_FORMAT "] ", p2i(label()));
1846   }
1847   if (ublock() != NULL) {
1848     out->print("unordered: [B%d] ", ublock()->block_id());
1849   }
1850 }
1851 
1852 void LIR_Op::print_condition(outputStream* out, LIR_Condition cond) {
1853   switch(cond) {
1854     case lir_cond_equal:           out->print("[EQ]");      break;
1855     case lir_cond_notEqual:        out->print("[NE]");      break;
1856     case lir_cond_less:            out->print("[LT]");      break;
1857     case lir_cond_lessEqual:       out->print("[LE]");      break;
1858     case lir_cond_greaterEqual:    out->print("[GE]");      break;
1859     case lir_cond_greater:         out->print("[GT]");      break;
1860     case lir_cond_belowEqual:      out->print("[BE]");      break;
1861     case lir_cond_aboveEqual:      out->print("[AE]");      break;
1862     case lir_cond_always:          out->print("[AL]");      break;
1863     default:                       out->print("[%d]",cond); break;
1864   }
1865 }
1866 
1867 // LIR_OpConvert
1868 void LIR_OpConvert::print_instr(outputStream* out) const {
1869   print_bytecode(out, bytecode());
1870   in_opr()->print(out);                  out->print(" ");
1871   result_opr()->print(out);              out->print(" ");
1872 #ifdef PPC32
1873   if(tmp1()->is_valid()) {
1874     tmp1()->print(out); out->print(" ");
1875     tmp2()->print(out); out->print(" ");
1876   }
1877 #endif
1878 }
1879 
1880 void LIR_OpConvert::print_bytecode(outputStream* out, Bytecodes::Code code) {
1881   switch(code) {
1882     case Bytecodes::_d2f: out->print("[d2f] "); break;
1883     case Bytecodes::_d2i: out->print("[d2i] "); break;
1884     case Bytecodes::_d2l: out->print("[d2l] "); break;
1885     case Bytecodes::_f2d: out->print("[f2d] "); break;
1886     case Bytecodes::_f2i: out->print("[f2i] "); break;
1887     case Bytecodes::_f2l: out->print("[f2l] "); break;
1888     case Bytecodes::_i2b: out->print("[i2b] "); break;
1889     case Bytecodes::_i2c: out->print("[i2c] "); break;
1890     case Bytecodes::_i2d: out->print("[i2d] "); break;
1891     case Bytecodes::_i2f: out->print("[i2f] "); break;
1892     case Bytecodes::_i2l: out->print("[i2l] "); break;
1893     case Bytecodes::_i2s: out->print("[i2s] "); break;
1894     case Bytecodes::_l2i: out->print("[l2i] "); break;
1895     case Bytecodes::_l2f: out->print("[l2f] "); break;
1896     case Bytecodes::_l2d: out->print("[l2d] "); break;
1897     default:
1898       out->print("[?%d]",code);
1899     break;
1900   }
1901 }
1902 
1903 void LIR_OpAllocObj::print_instr(outputStream* out) const {
1904   klass()->print(out);                      out->print(" ");
1905   obj()->print(out);                        out->print(" ");
1906   tmp1()->print(out);                       out->print(" ");
1907   tmp2()->print(out);                       out->print(" ");
1908   tmp3()->print(out);                       out->print(" ");
1909   tmp4()->print(out);                       out->print(" ");
1910   out->print("[hdr:%d]", header_size()); out->print(" ");
1911   out->print("[obj:%d]", object_size()); out->print(" ");
1912   out->print("[lbl:" INTPTR_FORMAT "]", p2i(stub()->entry()));
1913 }
1914 
1915 void LIR_OpRoundFP::print_instr(outputStream* out) const {
1916   _opr->print(out);         out->print(" ");
1917   tmp()->print(out);        out->print(" ");
1918   result_opr()->print(out); out->print(" ");
1919 }
1920 
1921 // LIR_Op2
1922 void LIR_Op2::print_instr(outputStream* out) const {
1923   if (code() == lir_cmove || code() == lir_cmp) {
1924     print_condition(out, condition());         out->print(" ");
1925   }
1926   in_opr1()->print(out);    out->print(" ");
1927   in_opr2()->print(out);    out->print(" ");
1928   if (tmp1_opr()->is_valid()) { tmp1_opr()->print(out);    out->print(" "); }
1929   if (tmp2_opr()->is_valid()) { tmp2_opr()->print(out);    out->print(" "); }
1930   if (tmp3_opr()->is_valid()) { tmp3_opr()->print(out);    out->print(" "); }
1931   if (tmp4_opr()->is_valid()) { tmp4_opr()->print(out);    out->print(" "); }
1932   if (tmp5_opr()->is_valid()) { tmp5_opr()->print(out);    out->print(" "); }
1933   result_opr()->print(out);
1934 }
1935 
1936 void LIR_OpAllocArray::print_instr(outputStream* out) const {
1937   klass()->print(out);                   out->print(" ");
1938   len()->print(out);                     out->print(" ");
1939   obj()->print(out);                     out->print(" ");
1940   tmp1()->print(out);                    out->print(" ");
1941   tmp2()->print(out);                    out->print(" ");
1942   tmp3()->print(out);                    out->print(" ");
1943   tmp4()->print(out);                    out->print(" ");
1944   out->print("[type:0x%x]", type());     out->print(" ");
1945   out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry()));
1946 }
1947 
1948 
1949 void LIR_OpTypeCheck::print_instr(outputStream* out) const {
1950   object()->print(out);                  out->print(" ");
1951   if (code() == lir_store_check) {
1952     array()->print(out);                 out->print(" ");
1953   }
1954   if (code() != lir_store_check) {
1955     klass()->print_name_on(out);         out->print(" ");
1956     if (fast_check())                 out->print("fast_check ");
1957   }
1958   tmp1()->print(out);                    out->print(" ");
1959   tmp2()->print(out);                    out->print(" ");
1960   tmp3()->print(out);                    out->print(" ");
1961   result_opr()->print(out);              out->print(" ");
1962   if (info_for_exception() != NULL) out->print(" [bci:%d]", info_for_exception()->stack()->bci());
1963 }
1964 
1965 
1966 // LIR_Op3
1967 void LIR_Op3::print_instr(outputStream* out) const {
1968   in_opr1()->print(out);    out->print(" ");
1969   in_opr2()->print(out);    out->print(" ");
1970   in_opr3()->print(out);    out->print(" ");
1971   result_opr()->print(out);
1972 }
1973 
1974 
1975 void LIR_OpLock::print_instr(outputStream* out) const {
1976   hdr_opr()->print(out);   out->print(" ");
1977   obj_opr()->print(out);   out->print(" ");
1978   lock_opr()->print(out);  out->print(" ");
1979   if (_scratch->is_valid()) {
1980     _scratch->print(out);  out->print(" ");
1981   }
1982   out->print("[lbl:" INTPTR_FORMAT "]", p2i(stub()->entry()));
1983 }
1984 
1985 #ifdef ASSERT
1986 void LIR_OpAssert::print_instr(outputStream* out) const {
1987   print_condition(out, condition()); out->print(" ");
1988   in_opr1()->print(out);             out->print(" ");
1989   in_opr2()->print(out);             out->print(", \"");
1990   out->print("%s", msg());          out->print("\"");
1991 }
1992 #endif
1993 
1994 
1995 void LIR_OpDelay::print_instr(outputStream* out) const {
1996   _op->print_on(out);
1997 }
1998 
1999 
2000 // LIR_OpProfileCall
2001 void LIR_OpProfileCall::print_instr(outputStream* out) const {
2002   profiled_method()->name()->print_symbol_on(out);
2003   out->print(".");
2004   profiled_method()->holder()->name()->print_symbol_on(out);
2005   out->print(" @ %d ", profiled_bci());
2006   mdo()->print(out);           out->print(" ");
2007   recv()->print(out);          out->print(" ");
2008   tmp1()->print(out);          out->print(" ");
2009 }
2010 
2011 // LIR_OpProfileType
2012 void LIR_OpProfileType::print_instr(outputStream* out) const {
2013   out->print("exact = ");
2014   if  (exact_klass() == NULL) {
2015     out->print("unknown");
2016   } else {
2017     exact_klass()->print_name_on(out);
2018   }
2019   out->print(" current = "); ciTypeEntries::print_ciklass(out, current_klass());
2020   out->print(" ");
2021   mdp()->print(out);          out->print(" ");
2022   obj()->print(out);          out->print(" ");
2023   tmp()->print(out);          out->print(" ");
2024 }
2025 
2026 #endif // PRODUCT
2027 
2028 // Implementation of LIR_InsertionBuffer
2029 
2030 void LIR_InsertionBuffer::append(int index, LIR_Op* op) {
2031   assert(_index_and_count.length() % 2 == 0, "must have a count for each index");
2032 
2033   int i = number_of_insertion_points() - 1;
2034   if (i < 0 || index_at(i) < index) {
2035     append_new(index, 1);
2036   } else {
2037     assert(index_at(i) == index, "can append LIR_Ops in ascending order only");
2038     assert(count_at(i) > 0, "check");
2039     set_count_at(i, count_at(i) + 1);
2040   }
2041   _ops.push(op);
2042 
2043   DEBUG_ONLY(verify());
2044 }
2045 
2046 #ifdef ASSERT
2047 void LIR_InsertionBuffer::verify() {
2048   int sum = 0;
2049   int prev_idx = -1;
2050 
2051   for (int i = 0; i < number_of_insertion_points(); i++) {
2052     assert(prev_idx < index_at(i), "index must be ordered ascending");
2053     sum += count_at(i);
2054   }
2055   assert(sum == number_of_ops(), "wrong total sum");
2056 }
2057 #endif